Academic literature on the topic 'Data transmission systems – Design and construction'

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Journal articles on the topic "Data transmission systems – Design and construction"

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Li, Cui-Min, Chun-Ying Li, and Lei Wang. "Reliable data transmission method based on 6LoWPAN for building energy systems." Building Services Engineering Research and Technology 41, no. 5 (November 26, 2019): 623–33. http://dx.doi.org/10.1177/0143624419891521.

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The building energy internet of things is based on radio frequency technology and a wireless sensor network that can collect building energy consumption data in real time. However, with the increasing complexity of wireless sensor network topology, there is a problem of insufficient IP address space relying on IPv4 protocol. In this paper, a design scheme of a building energy system based on 6LoWPAN network is proposed. IPv4/IPv6 address conversion is used to realise the access of IP addresses to each other, so as to monitor building energy consumption information anytime and anywhere. In view of the shortcomings of existing wireless network data transmission methods in low energy consumption and high reliability in building energy monitoring applications, a reliable data transmission method based on multipath routing coding algorithm is proposed. This strategy improves the transmission reliability of the network by increasing the number of redundant packets, and reduces the energy consumption of the network by reducing the number of transmission paths. The simulation results show that the proposed method can effectively improve the success rate of data packet transmission, reduce the standard energy consumption of sensor networks, and provide an effective method for the application of wireless sensor networks in building energy monitoring systems. Practical application: This paper studies how to improve transmission reliability and energy efficiency in cluster-based WSN and proposes a multi-path transmission strategy for selective coding of intermediate cluster head nodes. The strategy improves the transmission reliability of the network by increasing the number of transmissions of redundant packets and reduces the network energy consumption by reducing the number of transmission paths. It has good use value for the actual development and application of the building energy consumption monitoring system.
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Guo, Xiaofan, and Andrea Vacca. "Advanced Design and Optimal Sizing of Hydrostatic Transmission Systems." Actuators 10, no. 9 (September 21, 2021): 243. http://dx.doi.org/10.3390/act10090243.

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This paper presents a novel method for designing and sizing high-efficient hydrostatic transmissions (HTs) for heavy duty propulsion applications such as agricultural and construction machinery. The proposed method consists in providing cost effective HT architectures that maximizes efficiency at the most frequent operating conditions of the transmission, as opposed to the traditional HT design methods based on the most demanding requirements of the system. The sizing method is based on a genetic optimization algorithm for calculating the optimal displacement of the main units of the HT to maximizes the efficiency in the most frequent operating conditions of the vehicle. A simulation model for HTs is built in MATLAB/Simulink® environment to test three different circuit alternatives for basic HTs. Considering a particular 250 kW heavy-duty application for which drive cycle data were available, this study shows great improvement in energy efficiency (14%) and power saving (20.1%) at frequent operating conditions while still achieving the corner power condition.
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HALUŠKA, Renát, and Ľuboš OVSENÍK. "EXAMPLE OF SWITCHING HYBRID FSO/RF SYSTEMS." Acta Electrotechnica et Informatica 20, no. 4 (January 21, 2021): 27–31. http://dx.doi.org/10.15546/aeei-2020-0022.

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This article addresses the issue of optical communication with Free Space Optics (FSO) and its use. The article deals with the design and construction of a monitoring system designed for the collection and processing of data characterizing the nature of conditions along the transmission path of a hybrid FSO system with a radio communication link. Due to the vulnerability of the FSO transmission channel to weather conditions, it is necessary to predict the strength of the received signal and switch to a backup line based on machine learning using decision trees.
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Timofeev, G. A., N. N. Potrakhov, and A. Yu Gryaznov. "Data Transmission in the X-Ray Emission Frequency Range of Electromagnetic Radiation." Journal of the Russian Universities. Radioelectronics 24, no. 2 (April 29, 2021): 6–17. http://dx.doi.org/10.32603/1993-8985-2021-24-2-6-17.

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Introduction. Data transmission systems using the X-ray frequency range of electromagnetic radiation – X-ray communication system (XCS) have a number of advantages in comparison with radio or optical communication systems. The most significant advantages for practical use are their higher stealth and external interferences resistance, as well as stability against interception and decryption. It is of importance to develop a method for calculating the main parameters of an X-ray communication system: the range and speed of data transmission. In addition, the construction design and results of experimental research of the current X-ray communication system should be provided.Aim. To develop physical and technical foundations of data transmission systems using the X-ray frequency range of electromagnetic radiation.Materials and methods. We used an original method of calculating the X-ray emission spectrum, taking into account the attenuation coefficient in the propagation medium.Results. A technique for data transmission using the X-ray frequency range of electromagnetic radiation was suggested, including a method for calculating basic parameters e.g. the transmission range and speed, as well as the construction design of the current X-ray communication system model. Relations between these parameters and the operating modes of the X-ray tube were shown. The calculated and experimental data were in good agreement, sufficient for practical use. On their basis, it can be expected that at a voltage across the X-ray tube of 200 kV and the tube current of 1A in a 1-μs pulse, data transmission range in free air will be about 250 m. The maximum possible data transmission rate when using the developed X-ray tube will be 5 Mbit/s.Conclusions. The results of analytical and experimental investigations showed that the range and rate of data transmission of the XCS are exclusively determined by the transmitter energetic capabilities: by voltage and average the X-ray tube current during the generation of packages (series) of the X-ray pulses, as well as by the duration of a single X-ray pulse. It is concluded that the prospects of XCS depend on the development of specialized X-ray sources generating a series of pulses with the minimum possible duration of every single pulse in a series. Taking into account the specific features, XCS can become an alternative to conventional radio and optical systems for communication and navigation.
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Riznyk, Volodymyr. "Big Data Process Engineering under Manifold Coordinate Systems." WSEAS TRANSACTIONS ON INFORMATION SCIENCE AND APPLICATIONS 18 (April 2, 2021): 7–11. http://dx.doi.org/10.37394/23209.2021.18.2.

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This paper involves techniques for improving the quality indices of big data process engineering with respect to high-performance coded design, transmission speed, and reliability under manifold coordinate systems. The system formed with limited number of basis vectors. The set of modular sums of the vectors including themselves form t-dimensional toroidal coordinate grid over the toroid, and the basis is sub-set of general number of grid coordinate set. These design techniques make it possible to configure high performance information technology for big data coding design and vector signal processing. The underlying mathematical principles relate to the optimal placement of structural elements in spatially or temporally distributed systems by the appropriate algebraic constructions based on cyclic groups in extensions of Galois fields, and development of the scientific basis for optimal solutions for wide classes of technological problems in big data process engineering and computer science.
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Lu, Xiao Lin. "Design and Implementation of Remote PSTN-Based Data Acquisition System." Advanced Materials Research 108-111 (May 2010): 27–32. http://dx.doi.org/10.4028/www.scientific.net/amr.108-111.27.

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The Data Acquisition Systems (DAS) are the basis for building monitoring tools that enable the supervision of local and remote systems. A variety of communications and data transmission system has been adopted DAS to exchange information. The special-purpose DAS has a very important practical value. This paper presents the circuit and system design for a new micro type of remote data acquisition system. It consists of an integrated circuit, a phone dialer, modulation devices, central processing unit, buttons, input devices and display devices. The system and circuit design has been described in detail. It can be used to transmit data through the public switched telephone network. It is suitable for constructing a mini scale communication network at low cost for data acquisition through the PSTN.
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Aleksanin, Aleksandr. "Potential for the use of information systems in the management of construction waste." MATEC Web of Conferences 196 (2018): 04081. http://dx.doi.org/10.1051/matecconf/201819604081.

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At the present stage of the development of the construction industry, based on the principles of sustainable development, special attention should be paid to the formation of construction waste. Reserves for improving the level of efficiency of waste management can be found in the application of modern information technologies and their adaptation to resource-saving problems. The use of information systems is advisable at all stages of the life cycle of a building. Today, the technology of building information modeling (BIM) is actively developing, which can significantly reduce the amount of waste generation in construction. This is possible with its implementation at the design stage, in order to avoid irrational design decisions, collisions, etc. Information systems for data transmission allow rapid exchange of information between project participants, promptly warn about changes in space-planning decisions, materials, structures and equipment. At the stage of operation, in the presence of the information model of the building, it is possible to create a planning system for the organization of works of major overhaul or reconstruction. This article also proposes a description of the functions that an information system must have aimed at coordinating the management of construction waste in the region.
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Gong, Bei, Jingxuan Zhu, and Yubo Wang. "Construction of Trusted Routing Based on Trust Computation." Wireless Communications and Mobile Computing 2021 (April 19, 2021): 1–10. http://dx.doi.org/10.1155/2021/6657580.

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In the field of applied IoT, a large number of wireless sensor devices are tasked with data production and collection, providing IoT subjects with a large amount of basic data to support top-level IoT applications. However, there is a considerable risk of being attacked on such sensor networks that are organized in a wireless form. These relatively independent network devices have extremely limited performance and lifetime, a problem that can be supplemented in a centralized network with base stations by relying on the performance of the core nodes of the network, but in a decentralized self-organizing network, they can have a serious adverse impact on the implementation of security solutions. Considering the fundamental nature of the data generated by such end devices in IoT application services, the protection of their security is also directly related to the quality of upper layer services provided. The main research result of this paper is the design of a trust routing scheme for self-organizing networks. The scheme is based on a comprehensive evaluation of data transmission rate, transmission delay, and other factors related to the operation status of the self-organized network and improves the efficiency of the overall work of the self-organized network by reducing the performance consumption of individual nodes of the self-organized network and balancing the network load.
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Kovalenko, S. M., G. V. Petushkov, and O. V. Platonova. "Structure Selection Technique of Multi-Processor Computing Systems." International Journal of Engineering & Technology 7, no. 4.36 (December 1, 2018): 29. http://dx.doi.org/10.14419/ijet.v7i4.36.22707.

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This paper discusses construction of modern microprocessor structures and computing modules, including microprocessors and RAM, as well as computing systems containing computing modules combined by network means. Also, the "overhead" expenditure of time used for data transmission in the considered subsystems is analyzed. Estimates of the time spent on calculations and data exchange in multiprocessor computing systems (VS) are considered. An expression is derived for estimating the optimal number of computational modules in an aircraft that provides the minimum program execution time. Implementation of an aircraft with the structure recommended in the work, allows us to increase the overall performance of the system when performing the tasks that require intensive data exchange between individual computing modules. The results of research are expected to be used in the design and development of high-performance aircraft structures.
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Bansmer, Stephan E., Arne Baumert, Stephan Sattler, Inken Knop, Delphine Leroy, Alfons Schwarzenboeck, Tina Jurkat-Witschas, Christiane Voigt, Hugo Pervier, and Biagio Esposito. "Design, construction and commissioning of the Braunschweig Icing Wind Tunnel." Atmospheric Measurement Techniques 11, no. 6 (June 6, 2018): 3221–49. http://dx.doi.org/10.5194/amt-11-3221-2018.

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Abstract. Beyond its physical importance in both fundamental and climate research, atmospheric icing is considered as a severe operational condition in many engineering applications like aviation, electrical power transmission and wind-energy production. To reproduce such icing conditions in a laboratory environment, icing wind tunnels are frequently used. In this paper, a comprehensive overview on the design, construction and commissioning of the Braunschweig Icing Wind Tunnel is given. The tunnel features a test section of 0.5 m × 0.5 m with peak velocities of up to 40 m s−1. The static air temperature ranges from −25 to +30 ∘C. Supercooled droplet icing with liquid water contents up to 3 g m−3 can be reproduced. The unique aspect of this facility is the combination of an icing tunnel with a cloud chamber system for making ice particles. These ice particles are more realistic in shape and density than those usually used for mixed phase and ice crystal icing experiments. Ice water contents up to 20 g m−3 can be generated. We further show how current state-of-the-art measurement techniques for particle sizing are performed on ice particles. The data are compared to those of in-flight measurements in mesoscale convective cloud systems in tropical regions. Finally, some applications of the icing wind tunnel are presented.
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Dissertations / Theses on the topic "Data transmission systems – Design and construction"

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Tandon, Prateek. "High-performance advanced encryption standard (AES) security co-processor design." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04082004-180433/unrestricted/tandon%5fprateek%5f200312%5fms.pdf.

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Lindsey, Michael Karel 1963. "Design and simulation of a network interface unit for a fiber optic PACS network using VHDL." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277207.

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This paper describes the design and simulation of a network interface unit (NIU) for a picture archiving and communication system (PACS) network called PACnet. PACnet is a dual fiber optic ring network under development at the Computer Engineering Research Laboratory of the University of Arizona. This network integrates voice, data, and image communications in a hospital environment and supports a throughput rate between 200-500 megabits per second. At each node in the network, an NIU implements the Data Link Layer and Physical Layer protocols of PACnet. The initial network interface unit design for PACnet was a functional description of NIU protocols and major components. In order to construct a demonstration prototype of PACnet,the NIU description must be refined and an architecture must be specified. The NIU design is specified and simulated using the hardware description language VHDL. Simulation results provide information on NIU timing characteristics and logic families required to implement the NIU.
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Siu, Yun-ming. "Design and performance analysis of data broadcasting systems /." Hong Kong : University of Hong kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B16027115.

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蕭潤明 and Yun-ming Siu. "Design and performance analysis of data broadcasting systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B3123530X.

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Narasimhan, Sridhar. "Topological design of networks for data communication systems." Connect to resource, 1987. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=osu1262631254.

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Yeo, Yong-Kee. "Dynamically Reconfigurable Optical Buffer and Multicast-Enabled Switch Fabric for Optical Packet Switching." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14615.

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Optical packet switching (OPS) is one of the more promising solutions for meeting the diverse needs of broadband networking applications of the future. By virtue of its small data traffic granularity as well as its nanoseconds switching speed, OPS can be used to provide connection-oriented or connectionless services for different groups of users with very different networking requirements. The optical buffer and the switch fabric are two of the most important components in an OPS router. In this research, novel designs for the optical buffer and switch fabric are proposed and experimentally demonstrated. In particular, an optical buffer that is based on a folded-path delay-line tree architecture will be discussed. This buffer is the most compact non-recirculating optical delay line buffer to date, and it uses an array of high-speed ON-OFF optical reflectors to dynamically reconfigure its delay within several nanoseconds. A major part of this research is devoted to the design and performance optimization of these high-speed reflectors. Simulations and measurements are used to compare different reflector designs as well as to determine their optimal operating conditions. Another important component in the OPS router is the switch fabric, and it is used to perform space switching for the optical packets. Optical switch fabrics are used to overcome the limitations imposed by conventional electronic switch fabrics: high power consumption and dependency on the modulation format and bit-rate of the signals. Currently, only those fabrics that are based on the broadcast-and-select architecture can provide truly non-blocking multicast services to all input ports. However, a major drawback of these fabrics is that they are implemented using a large number of optical gates based on semiconductor optical amplifiers (SOA). This results in large component count and high energy consumption. In this research, a new multicast-capable switch fabric which does not require any SOA gates is proposed. This fabric relies on a passive all-optical gate that is based on the Four-wave mixing (FWM) wavelength conversion process in a highly-nonlinear fiber. By using this new switch architecture, a significant reduction in component count can be expected.
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Motahari, Bidgoli Seyed Mohammad Amin. "An Optical Design Configuration for Wireless Data Transmission." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2439.

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The concept of 2D barcodes is of great relevance for use in wireless data transmission between handheld electronic devices. In a typical setup, any file on a cell phone for example can be transferred to a second cell phone through a series of images on the LCD which are then captured and decoded through the camera of the second cell phone. In this research, a new approach for data modulation in 2D barcodes is introduced, and its performance is evaluated in comparison to other standard methods of barcode modulation. In the proposed method, Orthogonal Frequency Division Multiplexing (OFDM) modulation is used together with Differential Phase Shift Keying (DPSK) over adjacent frequency domain elements to modulate intensity of individual pixels. It is shown that the bit error rate performance of the proposed system is superior to the current state of the art in various scenarios. A specific aim of this study is to establish a system that is proven tolerant to camera motion, picture blur and light leakage within neighboring pixels of an LCD. Furthermore, intensity modulation requires the input signal used to modulate a light source to be positive, which requires the addition of a dc bias. In the meantime, the high crest factor of OFDM requires a lower modulation index to limit clipping distortion. These two factors result in poor power efficiency in radio over fiber applications in which signal bandwidth is generally much less than the carrier frequency. In this study, it is shown that clipping a bipolar radio frequency signal at zero level, when it has a carrier frequency sufficiently higher than its bandwidth, results in negligible distortion in the pass band and most of the distortion power is concentrated in the baseband. Consequently, with less power provided to the optical carrier, higher power efficiencies and better receiver sensitivity will result. Finally, a more efficient optical integrated system is introduced to implement the proposed intensity modulation method which is optimized for radio over fiber applications.
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Shuman, John H. "Conceptual design analysis of switched multimegabit data service as a telecommunications strategy for USA Today newspaper." Master's thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12232009-020128/.

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Zuo, Yongrong. "Power-efficient dual-rate gigabit transceiver design." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 121 p, 2006. http://proquest.umi.com/pqdweb?did=1037889461&sid=8&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Payandehjoo, Kasra. "Study of nonlinear transmission lines and their applications." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99785.

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With the increasing market demand for wideband multifunctional electronic systems, real-time broadband measurement systems with few picoseconds switching rates are essential. Furthermore, stable millimeter wave sources are required to drive these wideband electronic systems. Nonlinear transmission lines (NLTLs) are high impedance transmission lines periodically loaded with reverse biased diode serving as varactors. Extremely high bandwidths are achievable because of the possibility to fabricate these structures monolithically, which is why pulses with ultra short transitions can be generated using NLTLs. Also, efficient wideband frequency conversion is made possible by NLTL technology.
In this thesis, a comprehensive study of NLTLs and their applications is presented. Sharpening of the edges of electrical pulses, voltage dependent true time delay, and harmonic generation in NLTLs are investigated through analytical studies as well as circuit simulations and experimental measurements. Designing the best possible mixers, frequency doublers, and edge sharpeners and optimizing them are not the objects of this thesis. The main objective is to study an alternative design approach by using NLTLs. To this end, analytical solution for the magnitude of the third harmonic along a nonlinear transmission line is derived for the first time. Also, for the first time the lowpass nature of the NLTL is combined with the solutions for the magnitudes of harmonics in order to improve the validity range of the predicted harmonics. An NLTL harmonic generator is fabricated and measurement results are reported.
Inspired by the distributed nature of nonlinear transmission lines, a novel filtering method is introduced for the suppression of the unwanted signals in different NLTL applications. The filtering method is applied to a nonlinear transmission line frequency multiplier in order to filter the third harmonic. The distributed filtering is also used to suppress the image signal in an NLTL mixer. The proposed filtering method is general and can be applied to other periodic structure as well (such as distributed amplifiers and distributed mixers). For implementing the filtering, compact complementary split ring resonators are proposed and designed for an NLTL frequency doubler.
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Books on the topic "Data transmission systems – Design and construction"

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Pruitt, James B. T-1 networks, design to installation: Handbook for managing voice & data systems. Tulsa, Okla: PennWell Books, 1988.

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Nitsch, Jürgen. Radiating non-uniform transmission line systems and the partial element equivalent circuit method. Hoboken, N.J: J. Wiley, 2009.

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Nitsch, Jürgen. Radiating non-uniform transmission line systems and the partial element equivalent circuit method. Hoboken, N.J: J. Wiley, 2009.

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Nitsch, Jürgen. Radiating non-uniform transmission line systems and the partial element equivalent circuit method. Hoboken, N.J: J. Wiley, 2009.

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Iniewski, Krzysztof. Data networks: VLSI and optical fiber. Hoboken, NJ: J. Wiley & Sons, 2008.

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1959-, Steyaert Michiel, ed. High data rate transmitter circuits: RF CMOS design and techniques for design automation. Boston: Kluwer Academic Publishers, 2003.

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International Workshop on the Design of Reliable Communication Networks (2nd 2000 Munich, Germany). "Reliable networks for the information age": Proceedings, Second International Workshop on the Design of Reliable Communication Networks, DRCN 2000 : April 9-12, 2000, Universität München, Munich, Germany. München: Utz, 2000.

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Weiershausen, Werner. Optical transmission systems and equipment for networking VI: 10-12 September 2007, Boston, Massachusetts, USA. Bellingham, Wash: SPIE, 2007.

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Scalable computing and communications: Theory and practice. Hoboken, New Jersey: Wiley, 2013.

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Geerts, Yves. Design of multi-bit delta-sigma A/D converters. Boston: Kluwer Academic Publishers, 2002.

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Book chapters on the topic "Data transmission systems – Design and construction"

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Yu, Yan, Bingbing Song, Xiaozhen Liu, Qun Ding, and Ziheng Yang. "Design of Data Encryption Transmission System Based on FPGA." In Advances in Intelligent Systems and Computing, 293–99. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07773-4_29.

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Wallrabenstein, Amir, Thomas Bierhoff, Andreas Himmler, Elmar Griese, and Gerd Mrozynski. "Modeling of Optical Interconnections for Data Transmission within High-Speed Electronic Systems." In Interconnects in VLSI Design, 181–94. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4349-7_14.

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Wan, Weiqing. "Design of Temperature Detection Systems Based on Wireless Transmission." In Data Processing Techniques and Applications for Cyber-Physical Systems (DPTA 2019), 909–17. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1468-5_106.

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Kun, Zhang, Li Keli, Bi Fanghong, Liang Ying, and Yang Jun. "Research and Design of High Speed Data Transmission System Based on PCIE." In Advances in Intelligent Systems and Computing, 657–63. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34387-3_80.

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Hanacek, Adam, and Martin Sysel. "Design and Implementation of an Integrated System with Secure Encrypted Data Transmission." In Automation Control Theory Perspectives in Intelligent Systems, 217–24. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33389-2_21.

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Sun, Nuan. "Construction of a New Home Decoration Design Network Sharing Platform." In Data Processing Techniques and Applications for Cyber-Physical Systems (DPTA 2019), 1259–67. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1468-5_148.

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Pan, Lin. "Construction of Art Design Based on Newton Iterative Algorithm." In 2020 International Conference on Data Processing Techniques and Applications for Cyber-Physical Systems, 1143–48. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1726-3_142.

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Li, Rui, Chunyan Li, and Meiyan Tian. "Contribution Title Graphical Language Transmission Mechanism in Visual Communication Design Based on Data Abstraction." In Advances in Intelligent Systems and Computing, 806–15. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15235-2_109.

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Gao, Lingling, Wenjia Luo, and Laifeng Tang. "Application Design and Implementation of Intelligent Bracelet in Wisdom Campus Construction." In Data Processing Techniques and Applications for Cyber-Physical Systems (DPTA 2019), 603–10. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1468-5_72.

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Wang, Yu-Chao, and Bor-Sen Chen. "Network Biomarker Construction for Molecular Investigation and Diagnosis of Lung Cancer via Microarray Data." In A Systems Theoretic Approach to Systems and Synthetic Biology II: Analysis and Design of Cellular Systems, 3–29. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9047-5_1.

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Conference papers on the topic "Data transmission systems – Design and construction"

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Botero, Andres Yarce, Juan Sebastian Rodriguez, Julian Galvez Serna, Alejandro Gomez, and Manuel J. Garcia. "Design, construction and testing of a data transmission system for a mid-power rocket model." In 2017 IEEE Aerospace Conference. IEEE, 2017. http://dx.doi.org/10.1109/aero.2017.7943739.

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Zhao, Ruimin, Jin Wang, Kejie Lu, Xiangmao Chang, Lingzhi Li, and Yanqin Zhu. "Optimal Transmission Topology Construction and Secure Linear Network Coding Design for Multicast with Integral Link Rates." In 2016 IEEE 18th International Conference on High Performance Computing and Communications; IEEE 14th International Conference on Smart City; IEEE 2nd International Conference on Data Science and Systems (HPCC/SmartCity/DSS). IEEE, 2016. http://dx.doi.org/10.1109/hpcc-smartcity-dss.2016.0138.

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Storti, Duane, Chad Redl, Mark Ganter, George Turkiyyah, and Tony Woo. "Encapsulated Transmission of Part Specifications for Distributed Solid Freeform Fabrication." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/dac-8600.

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Abstract This paper describes an approach to the transmission of part specifications for distributed solid freeform fabrication. We consider an approach motivated by recent advances in software development associated with object oriented programming style and data encapsulation. Rather than insisting on translation of part specifications to a standard format, we specify a set of public methods necessary for solid freeform fabrication (SFF) or layered manufacturing (LM). By specifying public members and methods that provide fabrication systems with all the information needed to build parts, SFF systems can build parts based on models constructed in any modeling environment for which the methods are available. As an example, we consider a candidate set of methods required by a simple layered fabrication system, and we discuss an implementation of those methods for a modeling format, implicit solid modeling, that has not previously been directly supported by SFF systems. Since for any modeling system, SFF relies on the construction of the layers or slices through the part, we pay particular attention to describing a slicing implementation for implicit solids.
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Alexander, Addison, Annalisa Sciancalepore, and Andrea Vacca. "Online Controller Setpoint Optimization for Traction Control Systems Applied to Construction Machinery." In BATH/ASME 2018 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fpmc2018-8938.

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The development of a suitable traction control system for off-road heavy machinery is complicated by several different factors, which differentiate these machines from typical on-road systems. One such difficulty arises from the fact that they are often operated on ground conditions which can vary widely and rapidly. Due to this, traction control systems designed for these vehicles must be robust to a large array of surface types, and they must be capable of reacting quickly to significant changes in those types. In order to accomplish this, this paper proposes an online parameter optimization technique suitable for tuning the setpoint of a control system to maximize the tractive potential of a construction vehicle in real time. The traction control principle itself is based on selectively braking wheels which are slipping. It also attempts to account for the interactions of the transmission systems that deliver power from the engine to the wheels. This research uses a wheel loader as a reference machine for assessing controller performance. Drawing on previous work in simulation and controller design, a system model was developed which incorporates the vehicle dynamics of the machine as well as the behavior of the electrohydraulic brakes. This system model was leveraged to understand the effect of different optimization schemes on the performance of the traction control. The self-tuning algorithm is based on a compound optimization method utilizing both a system identification component and a parameter tuning component. The first part optimizes the model parameters to fit it as well as possible to measured slip-friction data. Based on the results of this, the second part draws from theories of wheel traction to maximize a balance of pushing force and traction effectiveness. The result is a method which can achieve the proper setpoint based on real-time data describing the ground condition. This system was run first in simulation and then on a modified vehicle system. In both cases, the algorithm allows the controller to find better setpoints to improve the traction control performance online.
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Estejab, Bahareh, and John Tobin. "Mineral Oil As an Alternative Cooling Method." In ASME 2021 30th Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/isps2021-65201.

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Abstract In an effort to increase the performance ceiling and reduce the size of modern personal computers especially gaming computers and consequently data centers and supercomputers, mineral oil is proposed as the working fluid to cool the system. Mineral oil operates as an avenue for transmission rather than a liquid heatsink for heat storage, which differentiates this project from traditional mineral oil systems. Using non-conductive liquid as cooling fluid brings many advantages due to its higher convective heat transfer coefficient, which leads to more compact computers, higher speed of data transition, more efficient processors, lower noise levels, and less upkeep costs with respect to data centers. Modeling and simulations are done in NX to gauge temperature expectations; which is the most important limitation when designing and testing a computer before construction. The temperature range was found to be 34°C–50°C in the motherboard and 45°C–67°C in the graphic card. Based on the modeling results, a prototype of the proposed computer is built and tested. Ultimately, this project is trying to open up an avenue through which processor design can be reconsidered.
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Sam Garci´a, Luis R. Chiang, Jose´ Luis Mora Mendoza, Enrique Rodri´guez Betancourt, and Rene´ Pe´rez Polanco. "Spatial Analysis in PGPB’s Risk Administration System for Pipelines." In 2004 International Pipeline Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ipc2004-0173.

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All facilities related with petrochemical and gas transmission systems have something to do with geography and therefore Geographic Information Systems (GIS). Maintenance of pipelines; design, construction and operation of pumping and compression stations; as well as emergencies attention, are some examples of the cases in which Pemex Gas y Petroqui´mica Ba´sica (PGPB), one of biggest companies owned by Mexican government, use a GIS called “Facilities and Assets Information System” (FAIS). For risk administration PGPB has been using Bass Trigon’s Integrity Assessment Program (IAP), software based on Kent Muhlbauer’s methodology. From this software, PGPB has built a Risk Administration System for Pipelines (RASP), which is able to identify and evaluate risks that could affect the transportation capacity of the company’s petrochemical, lpg and natural gas transmission systems. Both systems worked separately through 1997–2003, even though, both were aiming the same transmission systems. GIS was used to give immediate response to regulation authorities, satisfying internal requirements related to the surrounding environment of the company’s pipelines and the pipelines themselves. RASP was used to obtain and evaluate risk factors that would support decisions on the resources that would be utilized in the daily maintenance jobs. During 2003, the FAIS’s software was upgraded to the latest version of ArcGis (8.3), including a change in the programming language to Visual Basic for applications, a database migration to Unix and a modification in the system to new user requirements, which included the integration of RAST results. Nowadays, analyzing risk data in a spatial context has been a common use in the Pipeline Division of PGPB, which has become a powerful tool to support critical decisions from managers and chief executives. In this work are presented some specific applications using the integrated FAIS and RASP systems to show risk assessment data analysis and their consequences.
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Habib, Alexander J., Jeffery L. Barton, Randall M. Mathison, and Michael G. Dunn. "Wireless Telemetric Data Acquisition and Real-Time Control for a High Measurement-Density Internal Heat Transfer Experiment." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26408.

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This paper describes a wireless data transmission system for a large-scale rotating experiment to investigate the heat transfer in a three-passage serpentine test section. Patterned after the NASA HOST program, the current experiment extends the data set to larger aspect ratios including 1:2, 1:4 and 1:6. As with HOST, heat transfer is measured using the heated conducting segments technique, and the serpentine test section spins at rotation numbers representative of engine conditions. Rotating experiments are essential for capturing the representative operating conditions and complicated flow physics that must be understood to advance internal cooling technology for these high aspect ratio configurations. There are challenges associated with controlling the operating parameters and collecting accurate data for high measurement-density rotating experiments. This experiment requires that 140 copper panels be held at a constant temperature by independently controlling and recording the power supplied to a separate heater on each panel. This means there must be 140 temperature measurements, 140 pairs of heater power leads, enough power to drive all of these heaters, and data recording capacity left over to measure fluid temperatures and pressures. Traditional methods of transferring rotating signals to the stationary frame of reference (such as slip rings) are widely implemented but have practical limitations in the quantity of transferrable signals and the electrical current capacity of the individual channels. Alternatively, wireless transmission techniques were first developed decades ago, but their practical use has been limited by onboard power delivery requirements and cost. This paper describes the development of a new data transmission and control system that takes advantage of improvements in low-cost off-the-shelf electronics to create a battery powered and microprocessor controlled system for acquisition, storage, control, and wireless communication. These components are assembled to form an integral part of the rotating mechanical hardware. By handling high-fidelity microcircuit signal conditioning, data acquisition, feedback control, and data storage in the rotating frame and transmitting the results with two-way wireless communication, this system provides high measurement density and active feedback control that would have been impractical with a conventional slip-ring approach. The design and construction of the wireless control system for one full sidewall of the three-serpentine passage is described in detail. Its capability and functionality is demonstrated with operational data. It will be demonstrated that while all of the components in this system are readily available, the unique combination of this technology opens up a new world of measurement capabilities.
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Gonzalez, Bob. "Development of the G16CM34 Engine as a High Efficiency Engine for Gas Transmission, Storage and Withdrawal Services." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27301.

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There is a new large horsepower engine available in North America and supported by a well-established network of authorized factory dealers. The driver is based on a reciprocating engine design delivering 7670 to 8180 HP depending on site conditions. The 16-cylinder prime mover is specially engineered for gas transmission, storage and withdrawal service. Built on a diesel engine designed block, crankshaft, bearings, rods, and gear train, it provides long service intervals and 120,000 hours before major overhaul. Electronic ignition and combustion controls help conserve fuel, minimize emissions and keep the engine operating at peak capability under a variety of ambient and loading conditions. Electronic monitoring protects critical components and systems while greatly simplifying maintenance. The electronic control tightly regulates the combustion process, cylinder by cylinder, to optimize efficiency. It also controls the main cylinder and prechamber fuel delivery. Using sensor data based on ambient and turbocharged-aftercooled air intake temperatures, the microprocessors in the control system continuously monitor available engine power. With this information, the PLC controlling the compressor has the ability to load or unload the compressor to match the available engine output. Fuel efficiency is less than 5900 Btu/bhp-hr and NOx emissions of 0.50 grams/bhp-hr. The mechanical efficiency of the engine is greater than 43%. The mechanical refinements designed into the prime mover, are behind the high efficiency. For instance, the long stroke design maximizes fuel efficiency. A solenoid operated gas admission valve for each cylinder provides precise fuel metering. A calibration ring in the upper part of the cylinder liner helps reduce CO and NMHC emissions. Combustion gases do not collect in the gap between the piston and the liner wall, where most of these gases form. Instead, piston action forces them back into the combustion chamber for complete burning. In the event of a decline in fuel quality, a three-piece connecting rod enables a quick change in compression ratio without changing the piston. The paper will also cover details on maintenance intervals and costs, with additional features on the product along with construction details. Figure 1, illustrates a side view of the engine as Seen from the front.
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Harris, John M., Richard J. S. Whitehouse, and James Sutherland. "Marine Scour and Offshore Wind: Lessons Learnt and Future Challenges." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-50117.

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The drive for developing marine offshore renewables has led to specific requirements for scour hazard assessment relating to the associated foundation structures and the cabling necessary for in-field transmission and power export. To date within the United Kingdom (UK) a number of demonstrator projects have been constructed covering wind, wave and tidal generation. However, only offshore wind has been developed at large-scale at present as part of two rounds of commercial development of offshore wind farms (OWFs). In June 2008, The Crown Estate, responsible for licensing seabed use, announced proposals for a third round of offshore wind farms to develop an additional 25 GW of energy to the 8 GW already planned for under Rounds 1 and 2. The size of these Round 3 developments will vary, but the largest of these zones will involve the construction of around 2500 seabed foundation structures. Under Round 1 and 2 developments monopile and jacket type foundations have been used, although several other European (non UK) wind farms have been built using gravity base foundations. For a wind turbine the foundations may account for up to 35% of the installed cost. Therefore, one of the future challenges for large volume installation of offshore wind is the control and minimization of these costs. For tidal energy devices one of the principal requirements for many of the devices proposed is their placement in areas of strong tidal energy, and this has implications not only for the stability of the foundation option, but also for the construction methodology. Similarly wave energy devices are designed to be located in shallow, coastal environments as either floating or bottom mounted systems. These devices, by design, are intended to be located in environments with strong wave action. This may be substantial during storm events, which has implications for the integrity of the anchoring system keeping the wave device on station or the design of the device if it is seabed mounted. This paper will explore the lessons learnt from existing offshore wind farm developments as this represents the principal body of collected monitoring data. Using these data the paper will outline some of the challenges facing the offshore renewable industry in respect of the foundation designs and specifically the requirements for scour hazard assessment using the combined experience from those developments currently operational or under construction.
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Dong, Wen, and Chongxin Liu. "Design of Intelligent Telemedicine Monitoring Data Transmission Network." In 2nd International Conference On Systems Engineering and Modeling. Paris, France: Atlantis Press, 2013. http://dx.doi.org/10.2991/icsem.2013.172.

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Reports on the topic "Data transmission systems – Design and construction"

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Dunston, Philip, and James Monty. Practices for Seamless Transmission of Design Data from Design Phase to Construction Equipment Operation: A Synthesis Study. West Lafayette, Indiana: Purdue University, 2009. http://dx.doi.org/10.5703/1288284314324.

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Doyle, Jesse D., Nolan R. Hoffman, and M. Kelvin Taylor. Aircraft Arrestor System Panel Joint Improvement. U.S. Army Engineer Research and Development Center, August 2021. http://dx.doi.org/10.21079/11681/41342.

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Aircraft Arresting Systems (AAS) for military applications utilize sacrificial panels made of Ultra-High Molecular Weight polyethylene (UHMWPE) that are embedded into the pavement beneath the AAS cable to protect the pavement from cable damage. Problems have been observed with the materials and practices used to seal the UHMWPE panel joints from water and debris. Data obtained from laboratory and field studies were used make improvements to current practice for sealing UHMWPE panel joints. The study evaluated four joint-sealant materials, eight alternative surface treatment and preparation techniques to promote adhesion to UHMWPE, and seven joint-edge geometries. Bond-strength testing of joint-sealant specimens was conducted in the laboratory, followed by field evaluation of construction techniques. Field performance of the joint systems was monitored for 24 months after installation. Additionally, a thermal response model was developed to refine the joint design dimensions. Results confirmed that the best material to use was self-leveling silicone joint sealant. It was recommended that a dovetail groove be cut into the edge of UHMW panels to provide positive mechanical interlock and to reduce adhesive failures of the sealant. It was also recommended that the panel-to-panel joint-sealant reservoir be widened to prevent sealant compression damage.
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