To see the other types of publications on this topic, follow the link: Data transmission system testing equipment industry.
Journal articles on the topic 'Data transmission system testing equipment industry'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Data transmission system testing equipment industry.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Mijarez, Rito, David Pascacio, Ricardo Guevara, and Joaquin Rodriguez. "Signal processing algorithm for thermal drift compensation in high-temperature down-hole instrumentation systems." Transactions of the Institute of Measurement and Control 39, no. 8 (February 17, 2016): 1161–68. http://dx.doi.org/10.1177/0142331216630360.
Full textAbstract:
Down-hole oil and gas industry requirements for measuring thermodynamic and geophysical parameters, for instance pressure, temperature, vibration and multiphase flow, are challenging. Accomplishing these necessities requires a complete signal communications chain of high-performance components and effective signal processing communication techniques to provide system reliability. Nevertheless, noise interference, cable attenuation and thermal drift of the front-end passive electronic elements can lead to poor signal-to-noise ratio (SNR) and possibly loss of the communication link. This paper describes a signal processing algorithm implemented in a bidirectional communication system that exchanges data from a down-hole high pressure and high-temperature (HPHT) measurement tool to the surface installation. The communication channel is a multi-conductor coaxial logging cable also used as a power supply transmission line. The instrumentation system consists of a proprietary down-hole measurement tool, composed of an HPHT sensor and a high-temperature digital signal processor (DSP)-based electronic device; located in the surface installation is a data-acquisition equipment. The system employs a signal processing algorithm, based on the frequency domain SNR characterization of the whole communication chain, which determines in real time the optimal carrier frequency that is automatically implemented in the selected modulation/demodulation technique. The obtained laboratory test results of the down-hole tool, using changes in temperature from 25° to 185°C, provide a firm basis for testing and evaluating the system in the field.
2
Letkiewicz, Arkadiusz, Izabela Nowicka, and Ewa Kuczyńska. "Psychological Support for Drivers in Polish Police." Internal Security 10, no. 1 (November 27, 2018): 199–207. http://dx.doi.org/10.5604/01.3001.0012.7500.
Full textAbstract:
The objective of this article is to present an issue of psychological support for drivers, including drivers of emergency vehicles in the Polish Police. The publication will include preliminary results of scientific research conducted among senior management in the Polish Police — Regional Police Commanders and their deputies. Furthermore, the outline of support system concerning drivers’ psychological tests created in Polish Police will be presented. The research described in this article has been financed from the funds allocated for the implementation of a research project of Police Academy in Szczytno “Development of a system supporting psychological tests for drivers in the Police” No. DOB-BIO7/20/01/2015. The project has been developed by a scientific-industry consortium and is financed from the funds of National Centre for Research and Development under the call for proposals no. 7/2015 for development and financing projects for defence and security of the state. The project aims to produce a system supporting psychological studies of police drivers, including drivers of emergency vehicles in the Police, in accordance with current legislation. The system will be implemented in a network technology that facilitates direct cooperation with the Police Data Transmission Network, which will provide the basis for the independence and security of acquiring and storing data. The system will enable testing without additional equipment apart from an appropriately configured computer set. It will be equipped with a device to calibrate the response time measurement methodology. The system will allow assessment of intellectual ability, psychomotor skills and personality using the objective, standardized and normalized tools of proven accuracy, with reliability above 0.7, on a group of police drivers.
3
Mai, Zhi Wei, Chang You Li, Ye Zhang, Feng Ying Xu, and Jian Min Li. "Application of Wireless Data Transmission Technique in Drying Equipment." Advanced Materials Research 422 (December 2011): 262–67. http://dx.doi.org/10.4028/www.scientific.net/amr.422.262.
Full textAbstract:
The application of online detection technology for grain moisture is one of the most effective ways to improve the quality of grain drying. The online detection system for grain moisture consists of three parts: online remote module of ingoing grain moisture (charging), online remote module of outgoing grain moisture (discharging), and the host controller. It adopts JZ873 wireless transparent transmission module to realize the wireless data communication among various modules, and to formulate the communication drive. In practice, this system has characteristics such as flexible use, reliable data transmission, and it is more suitable for those testing and control conditions where it is inconvenient to wiring.
4
Ning, Xuefeng. "Research on Visualization System Platform of Power Equipment Based on Internet of Things." E3S Web of Conferences 276 (2021): 01017. http://dx.doi.org/10.1051/e3sconf/202127601017.
Full textAbstract:
As an important basic industry to ensure the sustainable growth of the national economy, the power industry has a large amount of power equipment information. In order to solve the widespread status information dispersion, inefficient use of status information, and low visibility in the status management of power transmission and transformation equipment. Key technologies such as multi-source heterogeneous data information fusion and visualization of power grid panoramic state information based on 3D GIS, a visualized intelligent management and control system for power transmission and transformation equipment is developed, which can comprehensively realize the status monitoring and diagnosis of power transmission and transformation equipment. As well as early warning, it provides an important means for managers and frontline employees to carry out equipment status management, so that staff can quickly obtain key information and improve work efficiency.
5
Wang, Gao Ping, Yong Hong, Dong Pyo Hong, Sung Mo Yang, and Young Moon Kim. "Study on Fault Detection and Diagnosis of the Edge-Transmission Ball Mill System." Key Engineering Materials 353-358 (September 2007): 2427–30. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2427.
Full textAbstract:
Pieces of large-scale equipment such as a ball mill system are subjected to heavy and alternate loads under the worst working conditions, which result in higher fault rates. However, since such equipment exerts important functions to the economy and industry, it isn’t recommendable to halt production in order to detect the defects under unconfirmed faults. We explore a reliable and practical fault diagnosis scheme for the ball mill system that is widely used in the building material industry. With utilizing the signal acquisition and process system of vibration, the field testing and analysis are performed based on the violent vibration of an edge-transmission Φ3×11m ball mill system. The primary diagnosis that is based on the configuration of the transmission system and foundation stiffness is found, and a feasible resolution scheme is obtained, so that the optimal and economic reform scheme is determined. The detailed scheme has been adopted by the production industry. This study that is based on the fault diagnosis of the edgetransmission ball mill system has a comprehensive significance of theory and reality. This provides a larger basis for vibration inspection and fault diagnosis in building material industries.
6
Zhou, Xiao, Hai Yan Zhao, Xiao Jian Liao, and Lei Qiu. "Signal Testing System of Electronic Equipment Based on Bluetooth and LabVIEW." Advanced Materials Research 940 (June 2014): 366–69. http://dx.doi.org/10.4028/www.scientific.net/amr.940.366.
Full textAbstract:
In order to solve the problem of the routine signal measuring apparatus applied in a certain type of electronic equipment , a wireless signal testing system based on bluetooth technology and LabVIEW is proposed and designed. The hardware and software structure of the system is demonstrated. The key principle of data acquisition, wireless transmission, data processing and display are described. The wireless signal testing system is successfully applied with the advantage of high accuracy, real-time and portable.
7
Yu, Ai Rong, Jun Wang, Xu Guang Ye, and Guo You Chen. "Application and Research of Instruction Serialization Technology in the Simulation Test System." Advanced Materials Research 1049-1050 (October 2014): 2049–53. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.2049.
Full textAbstract:
The process of converting a data structure or object state into a storable format is referred to as serialization. For the simulation of complex electromagnetic interference test environment, to evaluate the ability of the communication system, based on the semi physical simulation test environment, this paper presents a kind of instruction serialization mode based on TCP protocol as the data transmission and control scheme of multi device control, design and implementation of various types of equipment centralized monitoring framework for the realization of all kinds of network communications equipment and status data centralized testing and monitoring purposes, to achieve a data device management control process is accurate, real-time transmission.
8
Kozioł, Stanisław, Eugeniusz Matras, and Andrzej Zbrowski. "Modular System for Testing the Stability and Safety of Specialised Height Rescue Vehicles." Solid State Phenomena 199 (March 2013): 55–60. http://dx.doi.org/10.4028/www.scientific.net/ssp.199.55.
Full textAbstract:
The article describes the structure and the principles of operation of the test system for the investigation of safety of height rescue equipment used by rescue services. The system is composed of a portable computer, data acquisition block and measurement modules equipped with own power supply sources and radio transmission modules. Some of the modules constitute original, mechatronic measurement devices with specific metrological properties. The system is intended particularly for accreditation tests for height rescue equipment used by Fire Brigades.
9
Wang, Ying Zhi, Yi Cheng Tong, and Jia Yang. "Design of Control Terminal for Water Quality Detection Based on the Beidou Satellite Navigation System." Applied Mechanics and Materials 733 (February 2015): 666–69. http://dx.doi.org/10.4028/www.scientific.net/amm.733.666.
Full textAbstract:
The STM32F103RB single chip microcontroller as the core, and realizes the positioning and the short message transmission to the Beidou satellite navigation system module, to design the water quality detection control terminal. The actual show, control terminal design, can achieve the positioning system of water testing, acquisition, storage and transmission of sensor data. The extended application, the control terminal can be used to locate other required equipment, storage and transmission of data occasions.
10
Martin Boros, Matej Kucera, Andrej Velas, and Jan Valouch. "Possibilities for Experimental Testing of Alarm Transmission Systems." Communications - Scientific letters of the University of Zilina 22, no. 2 (April 1, 2020): 123–28. http://dx.doi.org/10.26552/com.c.2020.2.123-128.
Full textAbstract:
In the current digital era, information is a basis of some systems. In the area of information, great emphasis is also placed on its security and possibilities of use. The basis of the alarm transmission system is information about the protected object, which is transmitted to the remote center of the alarm transmission system. Operators of alarm transmission system centers should be obliged to carry out regular testing of the availability of individual transmission networks. At present, there is a trend that those tests are carried out by telephone calls between the two technicians and the time of transmission of information is measured utilizing a stopwatch. To automate this process, a test facility has been created that can simulate and record the intrusion of a protected object. Initial experimental tests have ascertained whether it is possible, with the test equipment, to generate the data necessary to assess the reliability of alarm transmission systems.
11
Promise E.I., Egho, Finu C. P., Kponyo D, Amankwah John, and Adu Mensah S. "E-TELECOMMUNICATION INFORMATION SYSTEM." International Journal of Research -GRANTHAALAYAH 8, no. 8 (September 12, 2020): 403–12. http://dx.doi.org/10.29121/granthaalayah.v8.i8.2020.1181.
Full textAbstract:
The transmission of traffic either in form of voice or data from a source to destination over a transmission media such as fiber cable or digital microwave radio is termed telecommunication.
The telecommunication is classified into three categories namely: Access network, core network and transmission system. The access network directly provides network services to the subscribers. The core network does the routing or switching of traffic from the source to destination over the transmission media while the transmission system provides the media through which the traffic is transmitted from source to the destination.
In this study, an automated web-based application name an E- Telecommunication Information System (ETIS) will be designed and developed to provide accuracy and consistence of network data, reduce Mean Time To Restore (MTTR) faulty equipment, increase revenues from cell sites and improve customers satisfaction in the telecommunication industry.
Qualitative research approach and qualitative research method will be adopted so as to achieve reliable objectives of the system.
12
Lin, Xiao Jun, Zhe Liu, and Jun Liu. "The Development and Research of Welding Power Source Testing Devices Based on ARM Controller." Applied Mechanics and Materials 121-126 (October 2011): 1600–1604. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.1600.
Full textAbstract:
The performance of arc welding power source is an important factor that affecting the use safe and welding quality, so a special equipment for the factory testing is required. The test equipment for arc welding power supply is master-slave structure, and includes hardware and software system. Hardware system complete data acquisition and information display, controlled by embedded micro-controller. The software system complete a graphical user interface programs and collection procedures, developed in the embedded Linux environment. The device enables the automated testing of the welding power source, such as loading, data transmission, reflecting a good man-machine interactivity. The system will be applied to the factory inspection of welding power source, to assess its the quality and performance through tested parameters.
13
Du, Yi-Chun, David Lin, Chun-Ping Jen, Choon Ng, Chi-Ying Chang, and Ya-Xuan Wen. "Development of a Wireless Mesh Sensing System with High-Sensitivity LiNbO3 Vibration Sensors for Robotic Arm Monitoring." Sensors 19, no. 3 (January 26, 2019): 507. http://dx.doi.org/10.3390/s19030507.
Full textAbstract:
In recent years, multi-axis robots are indispensable in automated factories due to the rapid development of Industry 4.0. Many related processes were required to have the increasing demand for accuracy, reproducibility, and abnormal detection. The monitoring function and immediate feedback for correction is more and more important. This present study integrated a highly sensitive lithium niobate (LiNbO3) vibration sensor as a sensor node (SN) and architecture of wireless mesh network (WMN) to develop a monitoring system (MS) for the robotic arm. The advantages of the thin-film LiNbO3 piezoelectric sensor were low-cost, high-sensitivity and good electrical compatibility. The experimental results obtained from the vibration platform show that the sensitivity achieved 50 mV/g and the reaction time within 1 ms. The results of on-site testing indicated that the SN could be configured on the relevant equipment quickly and detect the abnormal vibration in specific equipment effectively. Each SN could be used more than 10 h at the 80 Hz transmission rate under WMN architecture and the loss rate of transmission was less than 0.01% within 20 m.
14
Shen, Lianteng, Ling Li, Zhe Li, Xin Zhang, and Junjie Ma. "Design of intelligent integrated monitoring system under multistation fusion platform." MATEC Web of Conferences 336 (2021): 05022. http://dx.doi.org/10.1051/matecconf/202133605022.
Full textAbstract:
With the continuous advancement of the national energy strategy of China, constructing multistation fusion platform (MSFP) of substations, energy storage stations, and data center stations by taking advantage of the remaining resources of substations is a development trend. The monitoring of equipment operation and environmental parameters is a powerful guarantee for the stable and reliable operation of MSFP. Thus, this study developed an intelligent integrated monitoring system construction method that consists of state perception, information fusion, and decision and control layers. First, the state of equipment and environmental parameters were monitored efficiently through built-in status signals and multisensing techniques. Then, the multilevel transmission network, composite data structure, and data interface are integrated to achieve the collection of multisite information. Moreover, the device object model and station-level digital model were designed. Finally, the abnormal fault diagnosis of equipment, data fusion regulation, and coordinated optimization control were completed by using knowledge graph, data optimization and neural network modeling, and hierarchical analysis of multiple application scenarios in MSFP. The intelligent monitoring system can monitor and control the equipment, operation, and environment in the MSFP efficiently, thereby providing technical support for the new development of China’s electric power industry.
15
Dowell, F. E. "Design, Testing, and Implementation of a Data Automation System for the Peanut Quality Inspection Process1." Peanut Science 22, no. 2 (July 1, 1995): 94–101. http://dx.doi.org/10.3146/i0095-3679-22-2-4.
Full textAbstract:
Abstract The current manual peanut inspection system requires inspectors to hand record about 14 million pieces of grade information and hand calculate about 8 million percentages on the 600,000 lots marketed annually. This results in up to 26% of these manually recorded grade certificates having errors. An automated data collection system was developed that reduces errors in recording and calculating grade factors. In addition, labor is reduced since recording data electronically eliminates manual recording, calculating, and checking of grade data. Variability in calculating dollar value was reduced up to 11%. Depending on the type of error occurring at specific buying points, implementing the system could save the peanut industry up to $6 million annually. A commercial computer company is marketing a version of the automated data collection system for use with current grading equipment.
16
Deng, Lei Lei. "FFmpeg Technology Based on Media Asset Management System Design." Applied Mechanics and Materials 409-410 (September 2013): 1633–37. http://dx.doi.org/10.4028/www.scientific.net/amm.409-410.1633.
Full textAbstract:
The use of FFmpeg technology, overcome the current media asset management of some defects, better play the role of media assets. In response to various types of video data, audio data, text, pictures, and other media digital data storage, inventory management, query, edit material transcoding, information dissemination, and equipment and fixed assets to conduct a comprehensive management. The results show that, based on the " technology " of mass media resources, is to promote the media industry is the motive power of development, any form of content are the media core assets. The media asset design, solve the media transmission and conversion, the ultimate guarantee of effective and complete data. Keywords Key words: media assets; FFmpeg; transcoding; digital storage
17
Ottmann, E. J. E., and K. E. Vetter. "Computerized Water Monitoring and Data-Transmission System for Hydrology, Control, and Management." Water Science and Technology 19, no. 7 (July 1, 1987): 1211. http://dx.doi.org/10.2166/wst.1987.0014.
Full textAbstract:
For many water affairs and objectives the following functions are often of great importance:–automatic and continuous measurement of parameter and control and regulation of variables–digital acquisition of data, processing, and storage of data in-situ–quick and safe teletransmission of data to a computing or service centre. Thanks to computer-aided data acquisition and automated stations, today these functions can be performed in a cost-effective way. Furthermore, it is possible to profit by the efficiency and availability of such systems for a variety of projects in the field of water management. The paper describes a modern microprocessor-controlled and modular system of CMOS-technology, developed in the Federal Republic of Germany and widely used by authorities and in industry. An outstanding feature of the system is its great flexibility in the range of data acquisition and data teletransmission with the following possibilities:–data collection system (data logger)–data transmission via fixed linesvia telephone linesvia radio. Several examples show the application with hydrographs and water quality measurements, for the technical surveillance of waters and installations, as well as for the control and management of dams in view of drinking-water supply or agricultural irrigation, respectively. By means of these facilities on the basis of the measuring results, and after examination and evaluation of the information, topical decisions can be made which are founded on relevant strategies or model calculations. The use of the robust equipment is not only recommended for water authorities in industrialized countries, but also in developing countries for integrated measurement and information systems.
18
Liu, Yang Kuan, Tao Cai, and Shi Guang Ju. "Screw Inspection Optimized System Design and Implementation." Advanced Materials Research 217-218 (March 2011): 196–201. http://dx.doi.org/10.4028/www.scientific.net/amr.217-218.196.
Full textAbstract:
In machinery and equipment manufacturing industry, screw is an important part. Not only as a precision screw precision transmission components, but also commonly used for precision measuring devices. Precision screw itself directly affects the accuracy of precision machine tools and precision measuring instruments for transmission, positioning precision and accuracy, and thus the processing and inspection of precision screw is higher demanded. Traditionally, screw inspection is usually done by manual and the quality of inspection is not high, with very low inspection efficiency. To solve these problems, optimized system for screw inspection was designed and implemented. Using the Quartile range method in Statistics to remove outliers, and with the help of kalman filter, systemic error is got rid of. With these methods, raw measurement data is analyzed and processed, and inspection report is generated. The efficiency of screw inspection is highly improved.
19
Wang, Yiming, and Xidan Gong. "Optimization of Data Processing System for Exercise and Fitness Process Based on Internet of Things." Wireless Communications and Mobile Computing 2021 (July 6, 2021): 1–11. http://dx.doi.org/10.1155/2021/7132301.
Full textAbstract:
In the digital network era, people have higher requirements for physical fitness. In the future, physical fitness requires not only good fitness equipment and fitness environment but also more convenient and intelligent health management, service guidance, social entertainment, and other refined fitness services. The innovation of sports and fitness equipment for the digital network era will definitely depend on the development of information technology and network technology. Based on the cutting-edge Internet of Things technology, this thesis focuses on the development and application of a new generation of digital fitness equipment adapted to future development, advocating the new concept of seamless integration of fitness exercise and information services through human-oriented systematic design thinking and providing implementable solutions to realize the science, convenience, and life of public fitness. This thesis uses modern science and technology, especially the Internet of Things (IoT) technology, to fully meet the diversified fitness needs of the fitness crowd as the guide; IoT digital fitness equipment design and application research was newly generated, using a variety of research methods to explore the functional design and application of IoT fitness equipment; the goal is to create a more intelligent and three-dimensional IoT fitness service model in the future. Through the application research of intelligent devices in IoT fitness equipment, the realization of the functions of identity identification, environment perception, and data transmission of IoT fitness equipment is made faster. Intelligent devices can become the interaction channel between fitness service personnel, fitness equipment, and fitness users and also reduce the development cost of IoT fitness equipment. The construction of an IoT fitness cloud service platform and data management system integrates the application of IoT, cloud computing, mobile communication, and other technologies to make IoT fitness service supply remote, real-time, and diversified. While providing convenient and value-added fitness services for fitness people, it also brings sustainable development space for the health service industry.
20
Wang, Qi. "Lab Windows/CVI Platform-Based Cable and Harness Test System Software Design." Advanced Materials Research 301-303 (July 2011): 977–82. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.977.
Full textAbstract:
As a link maintaining an interconnection relationship, the cable and harness are widely used for many fields such as electronic measurement, chemical industry, electric engineering, mineral exploration, medical treatment, vibration analysis, acoustic analysis, fault diagnosis and teaching & research etc, so the testing of cable and harness is very important. This system utilized Lab Windows/CVI as the core control software, developed the cable and harness test software system on the basis of hardware equipment. According to the different properties of testing parameters, respectively designed the corresponding test methods, through software setting, process and compare the data read-back, and determine whether the technical parameters of cable and harness are qualified or not according to the specified determination basis.
21
Tebuev, M. B. I., T. B. I. Tebuev, and V. A. Shpenst. "DEVICES AND MEANS OF CONTROL OF UNDERGROUND FACILITIES BASED ON PLC TECHNOLOGY." Kontrol'. Diagnostika, no. 258 (December 2019): 44–47. http://dx.doi.org/10.14489/td.2019.12.pp.044-047.
Full textAbstract:
The article presents a solution for data transmission via electrotechnical communication lines, based on the testing of capacitive and inductive connection devices. The article contains information about modern systems for monitoring and control of technological equipment in the mine, for communication, alarm, monitoring and alerts. The principles and features of the Power Line Communications system are described. The relevance of the introduction of PLC technology in the control system of hard structures is described.
22
Benitez, F. G., J. M. Madrigal, and J. M. del Castillo. "Infinitely Variable Transmission of Racheting Drive Type Based on One-Way Clutches." Journal of Mechanical Design 126, no. 4 (July 1, 2004): 673–82. http://dx.doi.org/10.1115/1.1758258.
Full textAbstract:
An infinitely variable transmission (IVT), based on the use of one-way action clutches, belonging to the family of ratcheting drives is described. The mechanical foundations and numerical simulations carried out along this research envisage a plausible approach to its use as gear-box in general mechanical industry and its prospective use in automobiles and self-propelled vehicles. The system includes one-way clutches—free wheels or overrunning clutches—and two epicyclic gear systems. The output velocity, with oscillatory character, common to the ratcheting drives systems, presents a period similar to that produced by alternative combustion motors, making this transmission compatible with automobile applications. The variation of the transmission is linear in all the working range. The kinematics operating principles behind this IVT is described followed by a numerical simulation of the dynamic analysis. A prototype has been constructed and tested to assess its mechanical efficiency for different reduction ratios. The efficiency values predicted by theory agree with those experimentally obtained on a bench-rig testing equipment.
23
Rîșteiu, Mircea, Remus Dobra, Alexandru Avram, Florin Samoilă, Georgeta Buică, Renato Rizzo, and Dan Doru Micu. "Designing a Smart Gateway for Data Fusion Implementation in a Distributed Electronic System Used in Automotive Industry." Energies 14, no. 11 (June 4, 2021): 3300. http://dx.doi.org/10.3390/en14113300.
Full textAbstract:
This paper focuses on the interdisciplinary research on the design of a smart gateway for managing the dynamic error code testing collected and generated by the Electronic Control Unit (ECU) from the automotive industry. The techniques used to exchange information between the ECU code errors and knowledge bases, based on data fusion methods, allowed us to consolidate and ensure data reliability, and then to optimize processed data in our distributed electronic systems, as the basic state for Industry 4.0 standards. At the same time, they offered optimized data packets when the gateway was tested as a service integrator for ECU maintenance. The embedded programming solutions offered us safe, reliable, and flexible data packet management results on both communication systems (Transmission Control Protocol/Internet Provider (TCP/IP) and Controller Area Network (CAN) Bus) on the Electronic Control Unit (ECU) tested for diesel, high-pressure common rail engines. The main goal of this paper is to provide a solution for a smart, hardware–software, Industry-4.0-ready gateway applicable in the automotive industry.
24
Huang, Chung-Chi, and Xin-Pu Lin. "Study on Machine Learning Based Intelligent Defect Detection System." MATEC Web of Conferences 201 (2018): 01010. http://dx.doi.org/10.1051/matecconf/201820101010.
Full textAbstract:
In the paper, it is proposed to develop a machine learning based intelligent defect detection system for metal products. The common machine vision system has the surface (stain, shallow pit, shallow tumor, scratches, Edge defects, pattern defects) detection, or for the processing of the size, diameter, diameter, eccentricity, height, thickness and other parts of the non-contact numerical parameters of detection. Considering the quality of the work piece and the defects of the standard, so for the quality of customized testing requirements, the study is the development of machine vision and machine learning metal products defect detection system, mainly composed of three procedures: Image preprocessing, training procedures and testing procedures. The system architecture consists of three parts: (1) Image preprocessing: we first use the machine vision. OPENCV to carry out the image pre-processing part of the product before the detection. (2) Training procedures: The algorithm of the machine learning includes the convolution neural network (CNN), chunk-max pooling is used to train the program, and the generative adversarial network (GAN) based architecture is used to solve the problem of small datasets for surface defects. (3) Testing procedures：The Python language is used to write the program and implement the testing procedures with the GPU-Based embedded hardware In industries, collecting training dataset is usually costly and related methods are highly dataset-dependent. So most companies cannot provide Big-data to be analyzed or applied. By the experimental results, the recognition accuracy can be obviously improved as increasing data augmentation by GAN-Based samples maker. Manual inspection is labor intensive, costly and less in efficiency. Therefore, this study will contribute to technological innovation, industry, national development and other applications. (1) The use of intelligent machine learning technology will make the industry 4.0 technology more sophisticated. (2) It will make the development of equipment industry be better by the machine learning applications. (3) It will increase the economics and productivity of countries for the aging of the population by machine learning.
25
Berak, Elzbieta. "Modal Testing and Finite Element Analysis of a Battery Rack for Seismic Applications." Journal of the IEST 48, no. 1 (September 1, 2005): 94–102. http://dx.doi.org/10.17764/jiet.48.1.784m8hv205744x26.
Full textAbstract:
One of the most challenging aspects of reliability testing in the telecommunication industry is earthquake resistance testing. Cabinet systems, battery racks, equipment racks, and distribution frames are considered compliant with Network Equipment-Building System (NEBSTM) criteria for surviving earthquake conditions if test results indicate (1) the maximum deflection of the top of the structure does not exceed 7.6 cm (3 in.), (2) there are no permanent deformations or structural damage, and (3) the equipment or batteries remain functional (as defined in NEBS Requirements: Physical Protection, Specification GR-73 Issue 2). Based on seismic test results of a large population of telecom enclosures, it is accepted that a system always passes the seismic test if its fundamental natural frequency is at least 6 Hz. It is costly to produce and configure enclosures and conduct seismic qualification testing. To minimize the risk of telecom system failure, a modal finite element analysis (FEA) of the system should first be performed. Numerical results of the FEA should then be verified with experimental resonance search data generated by modal testing or sine sweep testing, combined with static pull testing where applicable. The resonance search results will determine the need for seismic testing (seismic analysis) prior to seismic qualification testing. This paper elaborates on key aspects of the static pull test method supported by the test results for a cabinet framework and a configured cabinet relative to the seismic test results. The paper also discusses sine sweep testing of a battery cabinet and results of two modal test methods used on the corresponding battery rack. Finally, this paper describes modal FEA of the same battery rack anchored to a concrete pad supported by a polystyrene plastic foam sheet and explains the correlation of the numerical results with the experimental modal analysis results. The correlated model serves as the baseline model for analyzing other battery racks and equipment cabinets configured with batteries.
26
NIEVES DA COSTA, JOAO PEDRO, PAULO AVILA, JOAO BASTOS, and LUIS PINTO FERREIRA. "A NEW SIMPLE, FLEXIBLE AND LOW-COST MACHINE MONITORING SYSTEM." DYNA DYNA-ACELERADO (June 7, 2021): [ 7 pp.]. http://dx.doi.org/10.6036/10075.
Full textAbstract:
The industry 4.0 revolution provides the machines with a sensory and communicational capacity, which allows them to monitor and collect large amounts of information. This kind of data have an impact on planning, maintenance, and management of production, enabling real time reaction, efficiency increase, and the development of predictive and process improvement models. The most recent machines are prepared to communicate with the existing monitoring systems, however, many (around 60%) do not. The objective of this work is to present the proposal of a system for remote monitoring of equipment in real time that meets the requirements of low cost, simplicity, and flexibility. The system monitors the equipment in a simple and agile way, regardless of its sophistication, installation constraints and company resources. A prototype of a system was developed and tested both laboratory conditions and a productive environment. The proposed architecture of the system comprises of a sensor that transmits the machine’s signal wirelessly to a gateway which is responsible of collecting all surrounding signals and send it to the cloud. During the testing and assessment of the tools, the results validated the developed prototype. As main result, the proposed solution offers to the industrial market a new low-cost monitoring system based in mature and tested technology laid upon flexible and scalable solutions. Industry 4.0, Machine Monitoring, Beacon, Bluetooth BLE, Remote Monitoring, Low Cost, SME’s, b-Remote
27
Shi, Bing, Shou Kun Xu, and Jian Ming Jiang. "Arrangement of Sensor Nodes for Wireless Sensor Network in Aquatic Products Breeding." Advanced Materials Research 989-994 (July 2014): 3433–36. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.3433.
Full textAbstract:
In order to overcome the disadvantages of ccomplexity of monitoring systems, inconvenience of installation for equipment and wiring, high error rate of data transmission, the technology of wireless sensor network is adopted. Through analysis of pond water testing results on the space distribution of water environmental factors, and the number and location of the sensor nodes is determined based on the distribution law of key factors. Experiments show that the system has higher accuracy and stability.
28
Qian, Zhi Qin, Li Zong Lin, Zhuan Huang, Wei Guo Ju, and Qun Cao. "A Design of Comprehensive Remote Sensor Experiment System." Applied Mechanics and Materials 437 (October 2013): 643–49. http://dx.doi.org/10.4028/www.scientific.net/amm.437.643.
Full textAbstract:
The remote network experiment is to remotely operate laboratory equipment to complete real experiment in different places through the Internet. This paper takes the comprehensive sensor experiment of the course Mechanical engineering testing technology as an example and designs a set of comprehensive remote sensor experiment system based on B/S model and configuration platform. The system is composed of a control system and a test system. The platform of kingview and the module of data acquisition using single-chip computer are used in the control system which communicates through the ModbusRTU protocol to realize data acquisition and the control function of output. The test system is based on Ethernet and composed of AD converter and DDE program. It realizes real-time data acquisition and high speed data transmission through the TCP/IP network. This system not only has the function of appointment course for students, but also greatly enhances students' learning ability by joining new design of experimental modules. The system has good reusability, scalability and maintainability.
29
Fang, Shixiong, Xinyi Chen, Kanjian Zhang, Haikun Wei, and Jian Ge. "The Antarctic Astronomical Observations Intelligent Support Equipment “Dome A” Site-Testing Observatory: Electric Power Generation and Control Systems." Energies 13, no. 17 (August 20, 2020): 4308. http://dx.doi.org/10.3390/en13174308.
Full textAbstract:
AAOISE, the Antarctic Astronomical Observations Intelligent Support Equipment, is an autonomous control equipment serving for energy support and environment thermal preservation, which is used for astronomical science observations in the Antarctic “Dome A”. It was deployed to “Dome A” and had an unattended run until now. The AAOISE stressed on the ways to adapt to adverse circumstances of “Dome A” and to have as little influence on the environment as possible. Its shape and structure are fully qualified for transportation and thermal insulation demands. The power generation and control systems are designed to provide continuous power and heat. Its communication system can support high-reliability data transmission and communications. It offers a possibility for developing “Dome A” scientific activities and remote monitoring of the running situation of the science instruments. This paper presents a detailed description of the power generation, power control, thermal management, instrument interface, and communications systems for AAOISE.
30
Mukherjee, Subhabrata, Vasileios Bonatsos, and Asif Raza. "The Urologist, Personal Protective Equipment (PPE) and COVID-19." Journal of Endoluminal Endourology 3, no. 4 (September 30, 2020): e1-e14. http://dx.doi.org/10.22374/jeleu.v3i4.104.
Full textAbstract:
Background and ObjectiveTo review the literature from a urologist’s perspective regarding the use of Personal Protective Equipment (PPE), associated challenges, and other potential measures that can be taken to reduce the risk of nosocomial COVID-19 transmission.
Material and MethodsA literature review using PubMed, Cochrane Review, and Google Scholar database search was performed using the keyword terms “COVID-19”, “Coronavirus”, “Personal Protective Equipment” (PPE), “healthcare workers” (HCW), “protection”, “masks”, and “urology”. Non-English articles were excluded. We present a summary of key guidance provided by regulatory bodies as well as some of the key articles published to date relating to PPE.
DiscussionSARS-CoV-2 virus is found mainly in the respiratory system but is also in blood, feces, semen, and urine. Both standard infection control precautions (SICPs) and transmission-based precautions (TBPs) are nec-essary to reduce nosocomial transmission of COVID-19 infection. PPE includes gowns, gloves, masks or respirators, goggles, and face shields; however, wearing PPE is only part of many precautionary measures that are necessary to prevent viral transmission. When used appropriately PPE not only protects HCWs from patients but also protects patients from HCWs who may be asymptomatic carriers of COVID-19 infection. Attention should also be paid to fit testing and fit checking, donning and doffing, and ever-evolving guide-lines on PPE. Wearing PPE for a long time is also technically challenging and may adversely affect surgical outcomes. Shortages of PPE in the supply chain during the peak of the pandemic as well as concerns about substandard PPE should be considered for a possible second wave of COVID-19. Other key measures to minimize nosocomial SARS-CoV-2 virus transmission are a symptom and temperature screening of patients and staff; controlling the flow of patients, staff, and relatives in hospitals; self-isolation by patients before elective surgery; a robust testing protocol for both patients and staff; patient and staff cohorting; physical distancing; good hand hygiene; respiratory etiquette including face coverings for patients, staff and visitors; proper disposal of waste and enhanced cleaning; thorough cleaning and sterilization of surgical equipment performed post-operatively; choosing suitable anesthetic methods to minimize aerosolization of the virus; and if possible ensuring a negative-pressure theatre environment while dealing with COVID-19 positive patients. As scientific and regulatory bodies continue to issue updated guidance as more data is collected and a better knowledge base is developed regarding COVID-19 employers and staff need to keep up to date with guidance also.
ConclusionCOVID-19 will be around for the foreseeable future and infection rates may fluctuate as restrictions are eased. HCWs including urologists should take appropriate PPE measures not only in theatres, clinics, and endoscopy suits but also when performing simple tasks such as urine dipsticks, catheter, nephrostomy management, digital rectal examination (DRE), prostate biopsies, etc. as SARS-CoV-2 can be detected in feces, urine, and semen. Both employers and HCWs should adhere strictly to current guidelines and work together to minimize nosocomial transmission of COVID-19 infection.
31
Tan, Hongyun, and Yiping Li. "News Information Platform Optimization Based on the Internet of Things." Wireless Communications and Mobile Computing 2021 (May 28, 2021): 1–11. http://dx.doi.org/10.1155/2021/9403874.
Full textAbstract:
The Internet of Things device online recommendation system has been applied in some Internet of Things operating companies and has achieved good results. In the process of designing and implementing the Internet of Things equipment online promotion system, this article uses the news information protocol transmission structure language to explain the use case analysis and activity diagram analysis of the Internet of Things equipment online promotion system and uses the Spring Hibernate (SH) integration framework in the field of the news information topology layer under the Internet of Things. Then, design and implement the technical architecture and main functional modules of the Internet of Things device online recommendation system, effectively improving the development efficiency and operating quality of the Internet of Things device online recommendation system. The system design concept and implementation ideas can be used as a reference for related industries when developing enterprise applications. This article uses the news information protocol transmission structure language to explain the demand analysis of the Internet of Things equipment online promotion system and mainly discusses the analysis of the use case of the Internet of Things equipment online promotion system and the analysis of core business activity diagrams. We completed the design of the Internet of Things device online promotion system based on the news information topology layer platform under the Internet of Things, mainly using the integration framework in the field of the news information topology layer under the Internet of Things to design the technical architecture of the Internet of Things device online promotion system, and design the Internet of Things of the function module structure and data table structure of the equipment online recommendation system. At the same time, they complete the realization of the main functions of the Internet of Things device online recommendation system; elaborate on the realization process of core modules such as Internet of Things device category management, Internet of Things device information management, announcement management, and device recommender management; and discuss the system testing process and application effects.
32
Kurbanismailov, Z. M., A. T. Tarlanov, E. D. Matyash, and E. S. Karbova. "Adaptive system for visualization of the electromagnetic scattering field of aircraft." Russian Technological Journal 9, no. 1 (March 3, 2021): 58–72. http://dx.doi.org/10.32362/2500-316x-2021-9-1-58-72.
Full textAbstract:
The space industry has always set ambitious tasks to create unique equipment, including control equipment. Ensuring electromagnetic compatibility (EMC) of such systems is carried out at all stages of the life cycle of an aircraft (AC), starting from its development, including testing and stages of operation. Digital technology is characterized by high noise immunity. However, any modern technical system in the aggregate contains sensors, communication lines and receiving antennas sensitive to the effects of external interfering signals that propagate both through wires and over the air. Hence, the relevance of ensuring the EMC of integrated technical systems that perform the functions of measurement, data processing and the formation of control actions, both digital and analog, is obvious. The electromagnetic compatibility of a sophisticated aircraft or spaceship technical system with other systems is a prerequisite for their sustainable operation. Aerospace technology, where both highly sensitive measurements and energetic control effects are closely combined in the dense layout of an aircraft, requires a solution to the EMC problem. This paper shows the need for effective technology to control the electromagnetic radiation created in the surrounding space, both by subsystems of aircraft and by the whole object. A method for visualizing 3D electromagnetic field both in space and in time is considered.
33
Zhang, Yan Hua, Xue Jiao, Ying Ying Zhong, Jun Chi Zhou, and Ju Yuan. "Application of Mobile Data Acquisition Technology in Highway Lightning Protection." Applied Mechanics and Materials 596 (July 2014): 498–504. http://dx.doi.org/10.4028/www.scientific.net/amm.596.498.
Full textAbstract:
The inspection of lightning protection system is developing gradually presently,while it is still in a relatively backward stage, data acquisition method is old, measuring conclusion is not real-time, data measurement is out of line with the standardization of lightning business. The service area and toll station of highway prone to lightning strikes for the isolated location. Meantime, there is no lightning protection facility or facilities are not perfect, lightning accidents happen sometime which caused heavy losses to the highway with a lot of sensitive electronic equipment. The inspection of highway lightning protection should be strengthened, the mobile data acquisition technology is introduced to the highway lightning inspection in order to make the lightning protection devices play an effective role. The data acquisition process and application are described, it can ensure the diversification of data, the real-time transmission of field testing data, further standardization of the lightning inspection process and the quality of inspection to ensure safe and effective operation of building and electromechanical systems.
34
Mijarez, Rito, David Pascacio, Ricardo Guevara, Joaquín Rodríguez, and Olimpia Pacheco. "Communications System using a 1K22Monoconductor Cable for Down-hole Measurement Tools." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2012, HITEC (January 1, 2012): 000316–26. http://dx.doi.org/10.4071/hitec-2012-tha15.
Full textAbstract:
Progressively deeper and hotter oil wells have driven design modification that enhances the performance in sensors and downhole electronic instruments. Oil reservoirs in Mexico are located at mean depths of 6,000 m; as a consequence, the requirements for measuring thermodynamic and geophysical parameters are challenging. This paper describes a bidirectional communication system that exchanges data from a down-hole high pressure and high temperature (HP/HT) measurement tool to the surface installation. The communication medium is a 7 km mono-conductor 1K22 logging cable used also as a power supply transmission line. The system consists of a proprietary downhole measurement tool, composed of a HT/HP sensor and a high temperature DSP-based electronic device, and a data acquisition equipment located in the surface installation. The system employs a communication algorithm that automatically switches the modulation technique and changes the carrier frequency to avoid issues derived from noise interference, cable attenuation and thermal drift of the front end passive elements. The laboratory tests results provide a firm basis for testing and evaluating the system in the field.
35
Chen, Xihui, Aimin Ji, and Gang Cheng. "A Novel Deep Feature Learning Method Based on the Fused-Stacked AEs for Planetary Gear Fault Diagnosis." Energies 12, no. 23 (November 27, 2019): 4522. http://dx.doi.org/10.3390/en12234522.
Full textAbstract:
Planetary gear is the key component of the transmission system of electromechanical equipment for energy industry, and it is easy to damage, which affects the reliability and operation efficiency of electromechanical equipment of energy industry. Therefore, it is of great significance to extract the useful fault features and diagnose faults based on raw vibration signals. In this paper, a novel deep feature learning method based on the fused-stacked autoencoders (AEs) for planetary gear fault diagnosis was proposed. First, to improve the data learning ability and the robustness of feature extraction process of AE model, the sparse autoencoder (SAE) and the contractive autoencoder (CAE) were studied, respectively. Then, the quantum ant colony algorithm (QACA) was used to optimize the specific location and key parameters of SAEs and CAEs in deep learning architecture, and multiple SAEs and multiple CAEs were stacked alternately to form a novel deep learning architecture, which gave the deep learning architecture better data learning ability and robustness of feature extraction. The experimental results show that the proposed method can address the raw vibration signals of planetary gear. Compared with other deep learning architectures and shallow learning architecture, the proposed method has better diagnosis performance, and it is an effective method of deep feature learning and fault diagnosis.
36
Cormell, Darren. "A new tool in the subsea industry: the Autonomous Inspection Vehicle (AIV)." APPEA Journal 52, no. 2 (2012): 659. http://dx.doi.org/10.1071/aj11073.
Full textAbstract:
A new tool for subsea inspection in the offshore oil and gas industry is now going through performance and qualification testing. The Autonomous Inspection Vehicle (AIV) has been designed and built by Subsea7 and SeeByte Ltd to provide the industry with a valuable tool capable of making a positive contribution to life-of-field operations. The station keeping and hovering ability of the AIV is the next step in the evolution of autonomous systems in the marine environment. Survey class autonomous vehicles have already shown their value with improved data quality and efficiencies compared with traditional methods. The first commercial AIV will be capable of many of the inspection tasks presently carried out by remotely operated vehicles (ROV). Regular inspection data of risers, pipelines, and seabed equipment can be gathered using a single AIV operating directly from an offshore facility. A more rapid assessment of a field can be made using multiple systems operating together from a single support vessel. This has not been done before with a commercial vehicle; hence, AIV is leading-edge technology. This extended abstract outlines some of the technical challenges in creating the vehicle and how the use of advanced simulation linked to practical testing is being used to ensure the performance of the system. Also discussed is a parallel with the evolution of subsea infrastructure that has fully enabled the capability of the ROV; how the introduction of autonomous technology should be considered with confidence is also demonstrated.
37
Liu, Xingjie, Yamin Zeng, Baoping An, and Xiaolei Zhang. "Research on Characteristics of ECVT for Power Quality Detection and Optimum Design of Its Parameter." Energies 12, no. 12 (June 24, 2019): 2416. http://dx.doi.org/10.3390/en12122416.
Full textAbstract:
Electronic Capacitive Voltage Transformer (ECVT), connecting the transmission system and measuring device, is the key equipment of digital substation in the distribution network. Its frequency characteristics and the rapid transient response performance exert decisive effects on whether it is in keeping with the power quality requirements for wide frequency domain and high precision detection. Many detection methods that require special testing equipment have limitations of high-cost and complexity in project implementation. We establish the mathematical model of ECVT, which is utilized to study its integrative characteristics based on the definitions of frequency response and transient voltage error. Besides, the harmonic and transient disturbance detection performances are analyzed comprehensively with the model by simulation. Then, we propose a multi-objective parameter optimization design model with minimization of transient voltage decay duration, maximization of frequency bandwidth and minimization of transient impulse voltage, which is solved through the entropy weighting method and genetic algorithm. The analysis and optimization results indicate that selecting resistor divider through the proposed method can achieve data transmission results with acceptable accuracy. Further, its superior performance on transforming transient disturbances conforms to the distribution network’s electric energy quality requirements.
38
László, Magó, Kosta Gligorević, Milan Dražić, and Mićo Oljača. "Determination of main parameters of ISOBUS system based agricultural machinery management." Poljoprivredna tehnika 46, no. 3 (2021): 40–48. http://dx.doi.org/10.5937/poljteh2103040m.
Full textAbstract:
ISO organization (https://www.iso.org) in early 90s defined an industry standard for the communication protocol among electronic devices of different manufacturers of agricultural machines. After that, all of the market actors recognised that this technology would be very important for agricultural electronics. The appearance of ISOBUS products in the market was in the mid-2000s. ISOBUS description could be found in ISO-11783 (https://www.iso.org). Through the standards and the related technical background, the production processes and the operations could be followed and monitored by the extensive Data Management. Farmers' and users legitimate needs and developing goal is to elaborate a decision support systems that follow-up the utilisation of the machines and ensure the quality of operations. For this purpose, it is essential to determine which technical, economical, technological parameters detection, measurement, transmission, processing, and evaluation becomes necessary. In our work, we reviewed which mechanical characteristic, settings are monitored within the ISOBUS system by the major machine manufacturers. We developed the system of parameters and derived features that provide effective farm-, and land-management in case of attached equipment for spreading of input materials, plant protection and tillage implements.
39
Velychko, О. М., O. V. Hrabovskiy, and T. B. Gordiyenko. "FEATURES OF THE LIFE CYCLE PROCESSES OF THE SOFTWARE FOR MEASURING EQUIPMENT." Key title Zbìrnik naukovih pracʹ Odesʹkoï deržavnoï akademìï tehnìčnogo regulûvannâ ta âkostì -, no. 2(17) (2020): 37–45. http://dx.doi.org/10.32684/2412-5288-2020-2-17-37-45.
Full textAbstract:
The article presents the results of comparative analysis to establish the main components of the software life cycle for measuring instruments (MI). Both basic international software engineering standards and specific international and regional documents for MI software were used for these studies. The results of the comparative analysis of the software life cycles for the MI allow both the developer of such software and its customer or consumer to focus on the most important stages for this software. The peculiarity of the MI software is that the result of the adoption of such software is a successfully tested MI, the software of which is a component of this MI. MI software testing is a component of acceptance tests of the MI itself, as a result of which this MI is accepted. Only upon successful completion of all necessary inspections of MI software can it be stated that the overall quality assessment of MI software has been completed. Consideration of specific software requirements for MIs is extremely important at such stages of the life cycle as the processes of system requirements analysis, software requirements analysis and software suitability testing. At the stage of formation of requirements for MI software, not only the general requirements for MI software (built into MI, installed on universal computers), but also specific requirements for the components of such software should be taken into account. For MI software, it is necessary to establish the level of division of software into legally significant and other parts, the degree of verification of software reading, storage devices and data transmission devices.
40
Chmaj, Grzegorz, Krzysztof Walkowiak, Michał Tarnawski, and Michał Kucharzak. "Heuristic algorithms for optimization of task allocation and result distribution in peer-to-peer computing systems." International Journal of Applied Mathematics and Computer Science 22, no. 3 (September 1, 2012): 733–48. http://dx.doi.org/10.2478/v10006-012-0055-0.
Full textAbstract:
Abstract Recently, distributed computing system have been gaining much attention due to a growing demand for various kinds of effective computations in both industry and academia. In this paper, we focus on Peer-to-Peer (P2P) computing systems, also called public-resource computing systems or global computing systems. P2P computing systems, contrary to grids, use personal computers and other relatively simple electronic equipment (e.g., the PlayStation console) to process sophisticated computational projects. A significant example of the P2P computing idea is the BOINC (Berkeley Open Infrastructure for Network Computing) project. To improve the performance of the computing system, we propose to use the P2P approach to distribute results of computational projects, i.e., results are transmitted in the system like in P2P file sharing systems (e.g., BitTorrent). In this work, we concentrate on offline optimization of the P2P computing system including two elements: scheduling of computations and data distribution. The objective is to minimize the system OPEX cost related to data processing and data transmission. We formulate an Integer Linear Problem (ILP) to model the system and apply this formulation to obtain optimal results using the CPLEX solver. Next, we propose two heuristic algorithms that provide results very
41
Bampoula, Xanthi, Georgios Siaterlis, Nikolaos Nikolakis, and Kosmas Alexopoulos. "A Deep Learning Model for Predictive Maintenance in Cyber-Physical Production Systems Using LSTM Autoencoders." Sensors 21, no. 3 (February 1, 2021): 972. http://dx.doi.org/10.3390/s21030972.
Full textAbstract:
Condition monitoring of industrial equipment, combined with machine learning algorithms, may significantly improve maintenance activities on modern cyber-physical production systems. However, data of proper quality and of adequate quantity, modeling both good operational conditions as well as abnormal situations throughout the operational lifecycle, are required. Nevertheless, this is difficult to acquire in a non-destructive approach. In this context, this study investigates an approach to enable a transition from preventive maintenance activities, that are scheduled at predetermined time intervals, into predictive ones. In order to enable such approaches in a cyber-physical production system, a deep learning algorithm is used, allowing for maintenance activities to be planned according to the actual operational status of the machine and not in advance. An autoencoder-based methodology is employed for classifying real-world machine and sensor data, into a set of condition-related labels. Real-world data collected from manufacturing operations are used for training and testing a prototype implementation of Long Short-Term Memory autoencoders for estimating the remaining useful life of the monitored equipment. Finally, the proposed approach is evaluated in a use case related to a steel industry production process.
42
Kátai, László, Péter Szendrő, and Péter Gárdonyi. "The power transmission stability and efficiency of V-belts." Progress in Agricultural Engineering Sciences 12, no. 1 (December 2016): 25–49. http://dx.doi.org/10.1556/446.12.2016.2.
Full textAbstract:
The V-belt drive is a rather popular, widely used form of power transmission in agricultural and food industry engineering. At the same time, its stability, the lifetime of V-belt is influenced by several environmental factors, namely in the food industry by the contamination affecting the belt sides, the ambient temperature, humidity and the occasionally aggressive (acidic, alkaline air, air saturated with gases, etc.) medium. In the case of agricultural machinery, the vibration caused by uncertainly oriented pulleys with bearing in different plate structures (often being shaken in the fields) as well as alignment adjustment inaccuracies jeopardize the reliability of the parameters of the drive. Furthermore, the efficiency is determined by several factors together: the slippage occurring during drive transmission, the hysteresis loss resulting from the external and internal friction occurring with the belt entering and exiting the pulley. Experimental equipment and calculation methods were developed to determine the dynamics of temperature increase generated by the belt and pulley relationship. The temperature generated in the V-belt was measured as a function of pretension, pulley diameter and bending frequency. The so-called damping factor characterizing the contact with the pulley (the external friction when entering and exiting the groove) and the hysteresis loss (inner friction) are also determined. On the basis of the damping factor (ζ ≈ 400 Ns/m2) of the V-belt involved in the experiments the other losses (Poth) occurring from the pulley—V-belt contact and internal friction may be estimated. The drive parameters may be optimized with the mathematical model describing the effect of the pulley diameter and belt frequency on the increase in temperature. A standardized calculation method as well as design factors valid for the properly adjusted drive and normal operating conditions determined through empirical and laboratory experiments are used for the sizing of V-belt drives. The lifetime of V-belt drives designed in this way, used in extreme conditions typical of agricultural machinery will not be appropriate and will not provide clear, predictable information for maintenance planning. In such cases the results of our own many lifetime tests conducted in the given circumstances can be safely relied on. The agricultural harvesting machines are large plate-body self-propelled structures on which most of the power supply of the (threshing, cleaning, moving, etc.) machine units handling the crop is realized via belt drives. The distance and angular displacement of the axes involved in the drive can vary within wide limits. The misalignment and angular displacement of the pulleys can be the result of installation instability — due to the plate structure — and the deformation of the plate structure occurring during the operation as well. V-belt drives operate satisfactorily under such conditions as well, however these faults are unfavourable in terms of belt lifetime and result in the reduction of drive efficiency. A further aim of our research is to examine through experiments the lifetime and efficiency of V-belts used in agricultural machines as a function of drive adjustment errors. According to the results of the measurements of the geometrical adjustment errors of V-belt drives performed in the field, the pulleys of agricultural equipment are not always positioned in the medium plane of the drive. In our experiments these data served as independent variables. Figure 1 shows the arrangement of a V-belt drive in a grain harvester with the laser pulley alignment measuring instrument installed as an accessory. In the case of many machine types in 80% of the tested drives three times the permissible error was measured, and because of off-road use, due to dynamic load these errors further increased as a result of the frame deformation. The results of both the belt bending testing and the geometrical adjustment testing of the drive offer great help in the design of belt drives. At the same time they can be the source of lifetime and efficiency forecasts.
43
Lin, Ming-Chang, Po-Yu Han, Yi-Hua Fan, and Chih-Hung G. Li. "Development of Compound Fault Diagnosis System for Gearbox Based on Convolutional Neural Network." Sensors 20, no. 21 (October 29, 2020): 6169. http://dx.doi.org/10.3390/s20216169.
Full textAbstract:
Gear transmission is widely used in mechanical equipment. In practice, if the gearbox is damaged, it not only affects the yield rate but also damages other parts of machines; thus, increases the cost and difficulty of maintenance. With the advancement of technology, the concept of unmanned factories has been proposed; an automatic diagnosis system for the health management of gearboxes becomes necessary. In this paper, a compound fault diagnosis system for the gearbox based on convolutional neural network (CNN) is developed. Specifically, three-axis vibration signals measured by accelerometers are used as the input of the one-dimensional CNN; the detection of the existence and type of the fault is directly output. In testing, the model achieved nearly 100% accuracy on the fault samples we captured. Experimental evidence also shows that the frequency-domain data can provide better diagnostic results than the time-domain data due to the stable characteristics in the frequency spectrum. For practical usage, we demonstrated a remote fault diagnosis system through a local area network on an embedded platform. Furthermore, optimization of convolution kernels was also investigated. When moderately reducing the number of convolution kernels, it does not affect the diagnostic accuracy but greatly reduces the training time of the model.
44
Al-Khazali, Hisham A. H., and Mohamad R. Askari. "The Experimental Analysis of Vibration Monitoring in System Rotor Dynamic with Validate Results Using Simulation Data." ISRN Mechanical Engineering 2012 (June 7, 2012): 1–17. http://dx.doi.org/10.5402/2012/981010.
Full textAbstract:
There is a growing tendency today to extract information about the prognostic parameters based on system analysis through various diagnostic techniques to assess the health of the plant or equipment. Vibration monitoring helps in reducing the machine down time. A vibration signature measured at the external surface of machine or at any other suitable place contains a good amount of information to reveal the running condition of the machine. Considering the importance of vibration monitoring in the rotating machinery fault diagnostics, it has been applied in this paper. Effects of modal parameters like natural frequency, mode shapes, and damping, misalignments have been studied. Balancing is usually an expensive and laborious procedure and a balancing system would be beneficial for motor engine and power generation application. In this research, there have been identified unbalance parameters that exist in rotating machinery and develop a finite-element model of rotating dynamics system to create a mathematical model of the system from the test data and subsequently obtaining the unbalanced parameters. During this study, the raw data obtained from the experimental results (Smart Office software) are curve fitted by theoretical data regenerated from simulating it using finite element (ANSYS 12) model for comparisons. The experimental analysis used thus far is called Modal Testing, a well-known and widely used technique in research and industry to obtain the Modal and Dynamic response properties of structures. The technique has recently been applied to rotating structures and some research papers been published, however, the full implementation of Modal Testing in active structures and the implications are not fully understood and are therefore in need of much further and more in-depth investigations. The aim is to find a system identification methodology using the analytical/computational techniques and update the model using experimental techniques already established for passive structures but to active rotating structures, which subsequently help to carry out health monitoring as well as further design and development in rotating machinery.
45
Demetillo, A. T., and E. B. Taboada. "Real-Time Water Quality Monitoring For Small Aquatic Area Using Unmanned Surface Vehicle." Engineering, Technology & Applied Science Research 9, no. 2 (April 10, 2019): 3959–64. http://dx.doi.org/10.48084/etasr.2661.
Full textAbstract:
Most developing countries depend on conventional water quality monitoring methods which are usually expensive, complicated, and time-consuming. In recent years, stationary and portable water quality monitoring and a mobile surface vehicle have increased the utilization of on-site water measurements and monitoring. The first has the disadvantage of small coverage area while the second has its cost and operational complexity. This paper addresses these issues by placing materials and equipment used in fixed online water quality monitoring and using a customized and low-cost unmanned surface vehicle. The measurements are taken automatically on the equipment onboard the unmanned surface vehicle (USV), transmitted wirelessly to a PC-based remote station or nearby stations and saved there in a dedicated database. The overall system comprises a commercial water quality sensor, a GSM and Zigbee module for a wireless communication system, a low-cost mobility platform, and the location/positioning system. During testing, all captured data like water quality parameters, location, and other essential parameters were collated, processed and stored in a database system. Relevant information from the USV can be viewed on a smartphone or a computer. The USV was also tested to conduct unmanned water quality measurements using the pre-inputted navigation route which shows a good result in navigation and data transmission. Water bodies with calm water such as lakes and rivers can use the USV, in a stand-alone mode or as a part of a networked sensor system.
46
Wang, Zuo Jie, Zhi Hong Tan, Li Bing Liu, Zheng Jie Wang, Song Zhang, and Yang Tan. "Digital Testing Methods of Virtual Prototype and Applied Research Facing to Product." Applied Mechanics and Materials 220-223 (November 2012): 3–12. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.3.
Full textAbstract:
There are many limitations depend on traditional physical product testing methods. Firstly, the cost is high and adaptability is poor. Secondly, the test is lag and it can’t follow the new product design’s beat. Thirdly, it can’t converge with digital design method, and it difficult to meet with the requirement of industry information. Study a product’s digital test method which based on modern design technical, and discuss simulation testing technical come true which face to virtual prototyping of bag filter, and aiming at digital testing result of bag filter main working capability prove feasibility and effectiveness of this method. Firstly, analyses components of digital virtual testing system and theory of working, and provide design model of virtual prototyping testing and testing progress how to come true, and by changing the condition of working simulation, and sampling, and data processing, acquire the result of dust gas uniformity which is design prototyping of bag filter. Application prove that digital process, face to digital testing of product virtual prototyping, by testing object and testing instrument and testing progress, and so on, adopting model simulation, digital simulation, calculate experiment, simulate testing technical, complete prototyping testing working under fully virtual state in computer. Let prototyping design quality controlling which is based on quantizing move forward. Achieve parallel designing and testing, which is full with the zero-cost, zero-lag, zero error of large and complex mechanical equipment design testing.
47
Bauer, Christine, Rebecca Wagner, Beate Orberger, Markus Firsching, Alexander Ennen, Carlos Garcia Pina, Christiane Wagner, Maryam Honarmand, Ghasem Nabatian, and Iman Monsef. "Potential of Dual and Multi Energy XRT and CT Analyses on Iron Formations." Sensors 21, no. 7 (April 2, 2021): 2455. http://dx.doi.org/10.3390/s21072455.
Full textAbstract:
Dual and multi energy X-ray transmission imaging (DE-/ME-XRT) are powerful tools to acquire quantitative material characteristics of diverse samples without destruction. As those X-ray imaging techniques are based on the projection onto the imaging plane, only two-dimensional data can be obtained. To acquire three-dimensional information and a complete examination on topology and spatial trends of materials, computed tomography (CT) can be used. In combination, these methods may offer a robust non-destructive testing technique for research and industrial applications. For example, the iron ore mining and processing industry requires the ratio of economic iron minerals to siliceous waste material for resource and reserve estimations, and for efficient sorting prior to beneficiation, to avoid equipment destruction due to highly abrasive quartz. While XRT provides information concerning the thickness, areal density and mass fraction of iron and the respective background material, CT may deliver size, distribution and orientation of internal structures. Our study shows that the data provided by XRT and CT is reliable and, together with data processing, can be successfully applied for distinguishing iron oxide rich parts from waste. Furthermore, heavy element bearing minerals such as baryte, uraninite, galena and monazite can be detected.
48
Tauger, Vitalii, Niyaz Valiev, Evgenii Volkov, Denis Simisinov, and Vitalii Adas. "Remote-controlled robotic complex for underground mining." E3S Web of Conferences 177 (2020): 03006. http://dx.doi.org/10.1051/e3sconf/202017703006.
Full textAbstract:
As the global rich mineral deposits are becoming depleted, the deposit development is performed with a deeper bedding and in much more difficult mining and geological conditions. This circumstance determines both the increase in the labor intensity and development costs, and the increased likelihood of emergencies. In recent years, the accidents have become more frequent at the Russian mining enterprises, aggravated not only by the significant damages, but also by the casualties. The ongoing efforts to correct the tight situation do not have a perceptible effect. A complete exclusion of the presence of people underground should be considered as a drastic remedy for preventing human casualties. It can be achieved only through the use of machinery and technology for manless mining using the automated control systems. The Department of Engineering Mechanics of the Ural State Mining University has formed the concept of a “remote-controlled robotic complex for underground mining”, according to which a surface-controlled system of mining equipment will absolve the miners from working underground. At present, the favorable conditions have been laid for combining the in-mine equipment and permanent installations into a single complex under the control of operators located on the soil surface. In accordance with the concept, the technological robotic complex is transformed into a mechatronic system of the underground mining equipment. The mechatronic system is divided into the separate subsystems by the types of equipment. Particular attention is paid to the automated complex remote-control system based on the telemetry principles using the latest means of data acquisition, conversion and transmission. The system interface provides the most efficient and error-free performance of the operator throughout the entire shift. The concept implementation of the remote-controlled robotic complex in the mining industry will allow not only to avoid the tragic consequences of emergencies in the mines, but also to elevate the national mining equipment and technology to the highest world standards.
49
Litvinov, E. A., and I. O. Saichenko. "USING SOFTWARE DEFINED RADIO TO STUDY SIGNAL TRANSMISSION IN VISIBLE LIGHT." Collection of scientific works of the Military Institute of Kyiv National Taras Shevchenko University, no. 69 (2020): 98–109. http://dx.doi.org/10.17721/2519-481x/2020/69-10.
Full textAbstract:
In the work, proposals have been developed for building a stand using GNU Radio for researching data transmission technology using visible light technology. Visible light communication (VLC) can be used to build high-bandwidth, high-speed wireless access networks. The main advantage of visible light communication is that RF signals are not obstructed. This makes it possible to use visible light communication in hospitals, on space stations, and so it makes it possible to communicate underwater. Security, simple implementation procedures and range characteristics, license-free, also increase the use of visible light communication for a variety of applications. The aim of this work is to provide guidance on the design and implementation of a visible light communication test bench using software-defined radio. The article describes the architecture of VLC, presents the possibilities of using Software Defined Radio as a starting point for developing commercial VLC applications SDR technology provides a framework that can help drive programs to market, generate interest from industry players, and shorten the time to market for future compliant products. The key issues in the implementation of the VLC system is to ensure the ability to transmit data for an LED luminaire with minimal changes in its lighting characteristics and production costs. Thus, this implementation can be improved by narrowing the gap between the industry and the research community. A prototype for visible light transmission was designed using software-defined radios to communicate between analog devices and the computer on which the signal is processed. Using this concept provides the system with sufficient flexibility and modularity to incorporate new features into a prototype without requiring a long development time. Conducted testing of this platform, during which it was possible to transfer a text file. It is concluded that this implementation of the visible light transmission stand can serve as a starting point for the development of low to medium bit rate commercial VLC applications.
50
Mendonça de Oliveira, Felipe Denis, Rodrigo Soares Semente, Jefferson Doolan Fernandes, Tálison Augusto Correia de Melo, Serafim Do Nascimento Júnior, and Andrés Ortiz Salazar. "EEWES: an energy-efficient wireless sensor network embed-ded system to be applied on industrial environments." Ingeniería e Investigación 35, no. 2 (August 5, 2015): 67–73. http://dx.doi.org/10.15446/ing.investig.v35n2.45289.
Full textAbstract:
<p class="Abstractandkeywordscontent"><span lang="EN-US">Nowadays, the vast majority of information monitoring in industrial plants is still carried out by wired technologies, in which the installation and maintenance cost is high. However, in outdoor applications, such as those used in the oil and gas industry, the use of Wireless Sensor Networks (WSN) is increasing due to mobility, reliability, and low cost of the sensor nodes that make up the network. Moreover, this solution reduces the risks of workers in classified areas (regions with high probability of accidents occurrence) to the extent that the equipment maintenance is optimized. This paper proposes the development of the EEWES, an energy efficient wireless sensor network embedded system, which can be applied on industrial environments. This development approach significantly reduces the energy consumption of the sensor nodes by using a method that alternates sleep periods of the transceiver/sensor set with data transmission/reception periods, which reduces the duty cycle while keeping the desirable parameters of the service quality (QoS). The results presented in this paper will be confirmed by field tests.</span></p>