Journal articles: 'Voltage real-time monitoring system'

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Sarkar, Subhra J., Sarat Kumar Sahoo, Palash K. Kundu, and Rutuparna Pattanayak. "Development of a quasi-real-time distribution voltage monitoring system." IET Generation, Transmission & Distribution 14, no. 20 (October 16, 2020): 4622–30. http://dx.doi.org/10.1049/iet-gtd.2020.0616.

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Hu, Deng Gao, Hong Qiang Zhao, and Cong Wen Luo. "Design and System Realization of Real-Time Monitoring of High Voltage Lines." Advanced Materials Research 591-593 (November 2012): 1868–71. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.1868.

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The real-time monitoring of electrical parameters which be used for weighing high voltage lines, such as voltage, current, power, power factor and so on, is the important base of realization of assuring reliable and efficient high voltage surge. According to actual electricity utilization demand of high voltage substation, the real-time monitoring system of high voltage lines designed and realized on the basis of using programming language c#. In the meantime introduces the key feature of system.

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Mohrem, Abdelkrim, Boukhemis Chetate, and Houssem Eddine Guia. "Measurement and Monitoring System With Real Time Data Logging Based on Microcontroller." International Journal of Measurement Technologies and Instrumentation Engineering 7, no. 2 (July 2018): 20–40. http://dx.doi.org/10.4018/ijmtie.2018070102.

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This article presents a microcontroller-based system for measurement and monitoring voltage of a three-phase electrical system with real-time data logging abilities. The proposed system uses voltage signals and time data as input. The output is an LCD and data files. The system accurately records abnormal voltage variations which have occurred on the system. A PC software is developed to receive and save data in two spreadsheet files through a serial port. Ihe log file contains the measured voltage, which is recorded periodically with a predefined time interval, and the second file contains the type of the fault. The proposed system is first simulated by ISIS-Proteus and then realized and implemented on an electronic board. It is beneficial to make detailed, scientific judgments and analysis for the voltage system to be supplied to a load. Because of the very simple circuit, it finds applications in industrial facilities. It is also useful in applying final circuits for both investigation and monitoring purposes.

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Lee, Chi-Yuan, Chia-Hung Chen, Guo-Bin Jung, Yu-Xiang Zheng, and Yi-Cheng Liu. "PEMWE with Internal Real-Time Microscopic Monitoring Function." Membranes 11, no. 2 (January 27, 2021): 92. http://dx.doi.org/10.3390/membranes11020092.

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In recent years, various countries have been paying attention to environmental protection issues, believing that climate change is the main challenge to the developed countries’ energy policies. The most discussed solution is renewable energy. The energy storage system can reduce the burden of the overall power system of renewable energy. The hydrogen energy is one of the optimal energy storage system options of renewable energy at present. According to these policies and the future trend, this study used micro-electro-mechanical systems (MEMS) technology to integrate micro voltage, current, temperature, humidity, flow and pressure sensors on a 50 μm thick polyimide (PI) substrate. After the optimization design and process optimization, the flexible six-in-one microsensor was embedded in the proton exchange membrane water electrolyzer (PEMWE) for internal real-time microscopic monitoring.

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Umar, Usman, Syafruddin Syarif, Ingrid Nurtanio, and Indrabayu. "A real time non-invasive cholesterol monitoring system." MATEC Web of Conferences 331 (2020): 06005. http://dx.doi.org/10.1051/matecconf/202033106005.

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Hypercholesterolemia causes cardiovascular disease which is a disorder of the heart and blood vessels, one of the most significant causes of death in the world, and this needs to be anticipated by monitoring blood cholesterol levels regularly. The current method of monitoring blood cholesterol levels is using invasive technique by collecting blood samples. A simple device is needed to measure blood cholesterol levels that can be done without collecting blood samples. This study aims to develop a non- invasive technique for monitoring blood cholesterol levels using sensors utilizing infrared light absorption in body tissues, in order to simplify measuring blood cholesterol levels regularly for patients with hypercholesterolemia. The application of a non-invasive technique focused on developing a total blood cholesterol monitoring device using an infrared sensor with IR LED - 940nm wavelength as a transmitter. A photodiode was used as a detector with the wavelength range of 400-1100 nm and a microcontroller as the minimum system for controlling the value of the output voltage in the form of digital data and then converted onto total blood cholesterol. The measurement results using non-invasive technique was compared to the results using invasive technique.

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Eid, Ahmad, Mamdouh Abdel-Akher, and Abdel-Fatah Ali. "Real-Time Voltage Stability Monitoring of Unbalanced Distribution Systems." Advanced Science Letters 19, no. 6 (June 1, 2013): 1656–60. http://dx.doi.org/10.1166/asl.2013.4513.

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Yi, Xian Jun, Jun Xia Jiang, De Wen Guo, and Di Feng Zhang. "The Design of Real-Time Power Detection System in Communication Equipment." Advanced Materials Research 605-607 (December 2012): 1063–67. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.1063.

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Communications equipments' voltage, current fluctuations and power changes will bring uncertain hazards in communication systems, monitoring each functional unit's power is necessary. However, communication equipment's power supply has characteristics such as high transient and wide-scale fluctuations, which increases the difficulty of monitoring the power output. This paper introduces a design of an accurate real-time detection of each functional unit's power in communications equipment. The design uses dedicated power detection chip LTC4151 as the core components of the power collection, the LTC4151 which has wide range and high DC voltage input can measure output power, determine and make alarm processing under the management of the micro-controller. The hardware and software design of system are described in detail. The design has high reliability which solved the problem of monitoring communication equipment's power under the complex environment with simple circuit.

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Bagus Kurniansyah, Izra, Ferdian Ronilaya, and Muhammad Fahmi Hakim. "Real Time Monitoring System Dari Active Solar Photovoltaic Tracker Berbasis Internet Of Things." ELPOSYS: Jurnal Sistem Kelistrikan 7, no. 3 (November 4, 2020): 7–13. http://dx.doi.org/10.33795/elposys.v7i3.5.

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Abstract: This monitoring system is used to monitor currents and voltages from Solar Power Plants (PLTS) with solar cell capacities of 50WP, 80WP, and 100WP. PLTS used is an active type of solar tracker, where solar cells used can find the maximum solar irradiation position by determining the upper and lower voltages as the reference voltage in the Arduino program. After PLTS can produce energy, then the energy can be used to turn on AC and DC electrical loads. From the energy used, here of course there are currents and voltages starting from the output of the solar cell, the accumulator output, the input at the AC load, and the input at the DC load. The monitoring results that have been carried out subsequently will be automatically sent to the Thingspeak application by using the SIM800L Module. This thingspeak application will send data in the form of numbers and graphs in real time. By comparing the value of the measurement results on Arduino and the thingspeak application, we get the size of the percentage of reading errors on the measuring instrument.

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Wang, Hao Zhou, Jian Min Zhang, and Hui Dong Li. "Design of the Real-Time Monitoring and Fault Diagnosis System of Equipment." Advanced Materials Research 718-720 (July 2013): 1472–75. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1472.

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This paper studies on a new type design of a real-time monitoring and fault diagnosis system of equipment. The system uses subject knowledge, such as sensor technology, neural network and embedded systems. It regards system voltage and current as the monitoring goals at the same time and shows the text of the system malfunction on the liquid crystal display. The paper introduces a new system monitoring approach combined with text, sound, light alarm to achieve the goal that the process of operating the equipment is safe, stable, balanced and low loss.

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Qu, Zhi Jian, and Li Liu. "Real-Time Database System Implementation of Railway Signal Power Source Remote Monitoring." Applied Mechanics and Materials 128-129 (October 2011): 961–64. http://dx.doi.org/10.4028/www.scientific.net/amm.128-129.961.

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Railway signal is a key technology for high-speed railway，which is the foundation to keep the high-speed train line. Railway signal power is the automatic blocking of railway lines and 10kV lines transform into 380V power through after the power supply for railway signals. Signal power as the railway traffic signal of the power supply, it belongs to the first level of power system load. Its 10kV high voltage side stik up by the major of electric, 380V low voltage side maintenance by the signal major. When the signal power failure, often occur shirk responsibilities between the different majors, in order to define the responsibilities of the accident better, which need automation remote monitoring for main railway lines of the railway signal power and scheduling control as soon as possible[1-3].

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Huang, Rong Wen, and Hsian Wei Huang. "Development of Real Time Monitoring System Using Controller Area Network." Materials Science Forum 505-507 (January 2006): 475–80. http://dx.doi.org/10.4028/www.scientific.net/msf.505-507.475.

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This paper presents a new development of a real time monitoring subsystem in a general-purpose real time monitoring and diagnosing system using controller area network (CAN) technology. To validate the designed concept, several vehicle electric utility devices are constructed as CAN nodes and are integrated into the CAN bus. An intelligent transducer to convert utility current and voltage is designed and fabricated with micro-controllers. An automatic node detection mechanism is also developed and added to detect the newly jointed/retrieved nodes and record the running history for further diagnosis when system or device malfunction happens. The system design configuration, implementation and verification are demonstrated with actual test data, and the test results demonstrate that the proposed system accomplishes real time electric power monitoring with diagnosis capability.

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Piao, Chang Hao, and Teng Cong. "Study on Isolation Monitoring of High-Voltage Battery System." Applied Mechanics and Materials 44-47 (December 2010): 571–75. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.571.

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After comparing the pros and cons of various isolation monitoring methods, this article presents the isolation monitoring method which based on unbalanced bridge and the characteristics of high-voltage battery system. Battery is an important component for Hybird-electric vehicle. The safety of high-voltage battery system is important specification for Hybird-electric vehicle. This device which uses Freescale’s 16-bit microcontroller with CAN communications capabilities achieve real-time and accurate measurement of isolation resistance of high-voltage battery system. The article focuses on the working principle of the device, hardware design and software design. This device has high accuracy, real-time, reliability and good working environment adaptability. The measuring accuracy meets the requirement of actual project.

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Huang, Hui Chun, Wei Jiang, and Ren Jie Hu. "Research on Integrated Monitoring System of High-Voltage Tower." Applied Mechanics and Materials 347-350 (August 2013): 657–60. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.657.

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The monitoring and stable operation of high-voltage tower is an important direction of strong grid research. Transmission monitoring includes the forecast of early faults and real-time state estimation. There is no domestic report on related research. Some simulation in laboratory had been done and little been reported. The research review was carried out in accordance with existing knowledge and research progress summary, using wireless transmission and self-generating as example, to build high-voltage tower monitoring system including power management systems, sensor systems, data processing systems, signal transmission system and remote monitoring system.

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Deng, Shijie, Alan P. Morrison, Yong Guo, Chuanxin Teng, Ming Chen, Yu Cheng, Houquan Liu, Xianming Xiong, and Libo Yuan. "Design of a Real-Time Breakdown Voltage and On-Chip Temperature Monitoring System for Single Photon Avalanche Diodes." Electronics 10, no. 1 (December 27, 2020): 25. http://dx.doi.org/10.3390/electronics10010025.

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The design and implementation of a real-time breakdown voltage and on-chip temperature monitoring system for single photon avalanche diodes (SPADs) is described in this work. In the system, an on-chip shaded (active area of the detector covered by a metal layer) SPAD is used to provide a dark count rate for the breakdown voltage and temperature calculation. A bias circuit was designed to provide a bias voltage scanning for the shaded SPAD. A microcontroller records the pulses from the anode of the shaded SPAD and calculates its real-time dark count rate. An algorithm was developed for the microcontroller to calculate the SPAD’s breakdown voltage and the on-chip temperature in real time. Experimental results show that the system is capable of measuring the SPAD’s breakdown voltage with a mismatch of less than 1.2%. Results also show that the system can provide real-time on-chip temperature monitoring for the range of −10 to 50 °C with errors of less than 1.7 °C. The system proposed can be used for the real-time SPAD’s breakdown voltage and temperature estimation for dual-SPADs or SPAD arrays chip where identical detectors are fabricated on the same chip and one or more dummy SPADs are shaded. With the breakdown voltage and the on-chip temperature monitoring, intelligent control logic can be developed to optimize the performance of the SPAD-based photon counting system by adjusting the parameters such as excess bias voltage and dead-time. This is particularly useful for SPAD photon counting systems used in complex working environments such as the applications in 3D LIDAR imaging for geodesy, geology, geomorphology, forestry, atmospheric physics and autonomous vehicles.

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Suparmaniam, M. V., V. Sathis, and A. O. Arshed. "A Real Time Data Monitoring System for Two-Degree of Freedom of Microcontroller based Solar Tracking System." MATEC Web of Conferences 225 (2018): 06014. http://dx.doi.org/10.1051/matecconf/201822506014.

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The dual axis solar tracker was designed for optimum solar cell implementation using dc-dc boost converter which controlled by fuzzy logic controller with the maximum power point tracking (MPPT) method. The objectives of this project are to track and optimize the maximum output power of the solar panel by designing and implementing the fuzzy logic controller using microcontroller as well as to regulate the output voltage of the solar panel using dc-dc boost converter. The photocell panel will detect the existing of sun and the surface plate of photocell panel will move horizontal and vertical axis depending on the value of LDR detected to follow the angular degree of sun in order to get maximum and best result of absorbing energy. The result obtained from the Arduino coding is the variation of duty cycle of PWM signal according to the voltage of solar panel. The final result obtained from dc-dc boost converter showed that the output voltage has been regulated. Data Acquisition System is done by using Arduino voltage sensor and current sensor to collect data for each second with the real time data graph. Overall, the designed system increases the efficiency of the solar panel based on experimental results.

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Belhadj, C., R. Mohamedi, S. Lefebvre, P. J. Lagace, and Xuan-Dai Do. "Voltage stability modelling and real-time monitoring using expert system for operation assistance." IEEE Transactions on Power Systems 11, no. 2 (May 1996): 1037–45. http://dx.doi.org/10.1109/59.496192.

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Fu, Chao, and Jing Hao. "High Voltage Circuit Breaker on-Line Monitoring System." Advanced Materials Research 898 (February 2014): 668–71. http://dx.doi.org/10.4028/www.scientific.net/amr.898.668.

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The high voltage circuit breaker is an important power system equipment. The reliability of its running relationship with the safe operation of the entire power system. High voltage circuit breaker on-line monitoring system enables real-time monitoring of various parameters during the operation in which the circuit breaker, and the use of communication to achieve data transfer bus information. Through monitoring points, closing coil current signals to constitute the core of C8051F online monitoring unit via RS-485 serial bus will monitor information is uploaded to the master computer.

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Gogineni, Venkatsampath Raja, Kalyan Matcha, and Raghava Rao K. "Real Time Domestic Power Consumption Monitoring using Wireless Sensor Networks." International Journal of Electrical and Computer Engineering (IJECE) 5, no. 4 (August 1, 2015): 685. http://dx.doi.org/10.11591/ijece.v5i4.pp685-694.

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This paper subsumes the implementation of automation in tracking the electrical consumption data of household systems over the network (WEB). This could sub-sequentially cut down the manual work involved in the process of collecting no: of units consumed from each house, thereby avoiding the manual costs and errors by building an automatic network access. The installation of this system is quite an easy task, which do not need much hardware work. The key elements that make this system are Current sensor and Voltage sensor interfaced to an Arduino board (A General Purpose Micro Controller board) with an Ethernet shield and a WIFI Router for transmission of data wirelessly to the server for storing consumption values into the database. Hosting web pages with the database connectivity will make the administrator generate electricity bill automatically that facilitates user’s to view and pay his electricity bill online.

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Rahayu, Yusnita, and Muhammad Ibnu Hidayat. "Bluetooth Based Home Control and Real-Time Energy Consumption Monitoring System through Smartphone." International Journal of Electrical, Energy and Power System Engineering 2, no. 3 (October 9, 2019): 5–9. http://dx.doi.org/10.31258/ijeepse.2.3.5-9.

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Energy consumption is one of the most important, for it is necessary to control the use of home lighting as needed. Monitoring is important, in order to know the quality of electricity supply in the system, identifying disruption events, and to calculate the amount of electrical energy consumption periodically. To achieve the objectives mentioned above, two schemes for home control and monitoring the electrical quantities in real-time have been developed. The first scheme presents Bluetooth based home control. It uses an HC-05 Bluetooth module and Bluetooth Controller mobile application for switching on / off the appliances. Relay and LEDs are used as loads to demonstrate the working of the system. This system is based on Arduino Uno microcontroller board. Arduino Integrated Development Environment (IDE) is used for developing the necessary software. The second scheme uses the current sensor ACS712-20A for monitoring of voltage, current, and energy consumption. The measurement results include voltage, current, power, and the amount of energy consumption that is displayed by LCD 16*2.

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Hu, Chung Chiang, Shing Han Li, and Tien Wei Tsai. "A SMS-Based Real-Time Device Monitoring and Abnormality Recovery System for Computer Rooms." Applied Mechanics and Materials 121-126 (October 2011): 3750–54. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3750.

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The equipments in computer rooms are complicated in nature. Many factors may influence their normal operations, for example: voltage, temperature, humidity, and the normalcy of systems. It would be prudent to have a monitoring system to prevent from unpredictable problems. Most monitoring systems in the market can only issue alarms in abnormal situations and then analyze the aftermath. They are also expansive and lack the ability for distant instant control. To tackle this problem, after our successful and practical experiments, we utilize GSM text messaging ability (i.e. SMS, short message service) and make distant monitoring possible. The monitoring system is established with a reasonable price that is well below current market. With this system, the manager/administrator can monitor the real-time status of equipments in computer rooms, send control commands through SMS and then get them executed to solve the problems instantly and effectively.

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Govindarajan, R., S. Meikandasivam, and D. Vijayakumar. "Performance Analysis of Smart Energy Monitoring Systems in Real-time." Engineering, Technology & Applied Science Research 10, no. 3 (June 7, 2020): 5808–13. http://dx.doi.org/10.48084/etasr.3566.

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The use of smart energy monitoring systems in buildings offers significant potential for energy saving. The introduction of a new kind of energy monitoring system is essential in the consumer-side in order to meet the demands of energy conservation. In this paper, four energy monitoring systems based on advanced wireless technology are proposed. The design and implementation of the smart real-time energy monitoring systems is analyzed with respect to their performance. The proposed systems utilize advanced wireless technologies like the Zigbee module, Internet of Things (IoT), Android Mobile Apps, and cloud computing for interfacing the information between the meters and the consumer end. A digital power meter is installed in the main panel, interfaced with a communication gateway and parameters such as voltage, current, power, power factor, and the harmonics of household appliances are measured in real-time. These systems provide power consumption details to the consumer and allow interacting with them by giving instant data such as live power tracking, identification of abnormal patterns of energy usage, energy bill estimation, and energy usage information.

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Reddy, K. Sreeshanth. "Real Time Monitoring and Control of Substation Parameters using IOT." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 20, 2021): 1942–45. http://dx.doi.org/10.22214/ijraset.2021.35466.

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This paper studies about real time monitoring and control of substation .automation of substation has become a need of companies. So, it is necessary to monitoring system that will be able to automatically sense, monitor, and classify the existing constraints on electrical loads. The main purpose of the project is to acquire the remote electrical parameters like voltage, current, temperature and frequency and send these real time values over network at power station. This project is also designed to protect the electrical equipments by operating relays .This relay gets activated whenever the electrical parameters exceed the predefined values.This system can automatically update the real time electrical parameters periodically. It has sensing capability to sense whether the system is in normal conditions or it exceeded the predefined values .If it exceeds predefined values then it gives buzzer to alert and relays automatically trips the circuit .

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Chen, Jia Yu, Jia Tao, Jia Tao, Limin Huo, and Limin Huo. "Study on Communication Methods for Electric Power High-voltage Equipment Monitoring System." International Journal of Online Engineering (iJOE) 14, no. 02 (February 28, 2018): 181. http://dx.doi.org/10.3991/ijoe.v14i02.8212.

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Real-time monitoring of high-voltage equipment in substations is beneficial for early detection of faults. The use of wireless sensor networks to build monitoring system is an effective way, but the data collection is a difficult task. The author introduces a real-time monitoring system based on ZIGBEE and mobile communication technology. The system includes multiple monitoring points and terminal platforms. Each monitoring point consists of a number of sensor nodes to form a ZIGBEE network, detecting relevant parameters, coordinator node data collected one by one, known as linear transmission, and finally to the monitoring platform through the mobile communication network. This paper presents a fusion algorithm for monitoring cell data acquisition to reduce the amount of data uploaded to the base station. In addition, multi-hop routing algorithm based on opportunistic routing is proposed to balance network energy and improve network transmission rate and efficiency.

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Yarn, Kao Feng, King Kung Wu, and Wen Bin Lin. "Computer Graphic Control on the Battery Monitoring System." Advanced Materials Research 219-220 (March 2011): 832–35. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.832.

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In this study, the MITSUBISHI PLC (FX2n-32MR) is used to achieve the lead-acid battery monitoring system. The battery is by way of rater and FX-2AD used in charging state. The analog and digital data are transmitted to PLC to get the real-time monitoring and control. During charging, time and voltage keep constant to reach charging optimization condition. In addition, AD590 is used as reference measurement and battery protection in temperature control.

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Hussain, Abadal Salam T., Israa A. Dahham, F. Malek, Qais H. Jeflawi, Jailani O. Mahmoud, Ahmad Zaidi Abdullah, Muhammad Irwanto Misrun, Gomesh Nair Shasidharan, Mohd Irwan Yusoff, and Taha A. Taha. "Early Warning for DC Power Failure System." Applied Mechanics and Materials 793 (September 2015): 124–28. http://dx.doi.org/10.4028/www.scientific.net/amm.793.124.

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Electrical systems and devices suffer from unexpected failures due to various reasons such as input voltage fluctuation and low or high voltages. This paper discussedabout the development of a device for detecting imminent failure of electric products such as refrigerators, ovens, Air-conditions and etc. The main objective of this developed preventive device is todetect voltage drop or rise and produce an alarmsignal to enable and activates other protection circuitry.The mechanismof the detector/sensing circuit is based on differentiating the voltage level using dualcomparator; this makes the system more considerate. The method enables real-time monitoring of stability boundaries and the corresponding margin to the observed operating point, which is used to provide an early warning for emerging stability problems.

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Hasib Cheragee, Sheikh, Nazmul Hassan, Sakil Ahammed, and Abu Zafor Md. Touhidul Islam. "A Study of IoT based Real-Time Solar Power Remote Monitoring System." International Journal of Ambient Systems and Applications 9, no. 2 (June 30, 2021): 27–36. http://dx.doi.org/10.5121/ijasa.2021.9204.

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We have Developed an IoT-based real-time solar power monitoring system in this paper. It seeks an opensource IoT solution that can collect real-time data and continuously monitor the power output and environmental conditions of a photovoltaic panel.The Objective of this work is to continuously monitor the status of various parameters associated with solar systems through sensors without visiting manually, saving time and ensures efficient power output from PV panels while monitoring for faulty solar panels, weather conditionsand other such issues that affect solar effectiveness.Manually, the user must use a multimeter to determine what value of measurement of the system is appropriate for appliance consumers, which is difficult for the larger System. But the Solar Energy Monitoring system is designed to make it easier for users to use the solar system.This system is comprised of a microcontroller (Node MCU), a PV panel, sensors (INA219 Current Module, Digital Temperature Sensor, LDR), a Battery Charger Module, and a battery. The data from the PV panels and other appliances are sent to the cloud (Thingspeak) via the internet using IoT technology and a Wi-Fi module (NodeMCU). It also allows users in remote areas to monitor the parameters of the solar power plant using connected devices. The user can view the current, previous, and average parameters of the solar PV system, such as voltage, current, temperature, and light intensity using a Graphical User Interface. This will facilitate fault detection and maintenance of the solar power plant easier and saves time.

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Liu, Peng Peng, Fang Yao, Zhi Gang Li, and Yan Yan Luo. "Research on Voltage and Current Monitoring System for Circuit Breaker." Applied Mechanics and Materials 392 (September 2013): 389–93. http://dx.doi.org/10.4028/www.scientific.net/amm.392.389.

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This article develops the automatic test system of voltage and current dynamic waveform for circuit breaker. The system has the automatic monitoring, the storage and the display function of contact voltage and current waveform of circuit breaker in switching process. And then, it also designs the hardware and software of voltage and current dynamic monitoring system for miniature circuit breaker: the hardware circuit of this test system mainly consists of the detection circuit and the data acquisition circuit of current and voltage. And the software system, which mainly consists of control program, data acquisition program and data processing program, is programmed under the condition of LabVIEW. At last, it carries on the real-time monitor to the voltage and current waveform at the both ends of the circuit breaker, especially for the waveform during the switching process, which contributes to study the arc energy and contact wear of circuit breaker.

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Quan, Rui, Xin Feng Tang, Shu Hai Quan, and Liang Huang. "A Thermoelectric Modules Voltage Monitoring System Used in Automobile Exhaust Thermoelectric Generator." Applied Mechanics and Materials 192 (July 2012): 217–21. http://dx.doi.org/10.4028/www.scientific.net/amm.192.217.

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According to the requirement of independent voltage monitoring of thermoelectric modules used in Automobile Exhaust Thermoelectric Generator(AETEG) designed by our group, a kind of voltage monitoring system based on master-slave architecture that includes several slave detecting boards and a master detecting board was designed in this paper, the hardware schematic and software flow diagram were provided, the amplifier circuit that could detect negative voltage of thermoelectric modules was designed, and the PC based monitoring interface using VC++ language was developed as well. The practical application results validate that the system designed is sophisticated and steady, it meets the real time voltage monitoring demand of thermoelectric modules and provides convenience for their optimization of electric topology structure in future.

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Yan, Hui, and Hai Yan Hu. "The Research of On-Line Monitoring System for High Voltage Transmission Line Based on Wireless Sensor Network." Applied Mechanics and Materials 341-342 (July 2013): 1271–74. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.1271.

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Taking advantage of advanced sensor technique, wireless network technology, multi-sensor information synthesize, general information progressing technology and computer technology, based on wireless sensor network, foundation platform hardware and the software architecture of the monitoring and warning system of high voltage transmission line are set up, which is used as the unified platform of high voltage transmission line monitoring for data collecting, data transmission, data display and warning, thus real-time online monitoring of high voltage transmission line is realized.

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Lu, Rui, Jiwu Lu, Ping Liu, Min He, and Jiangwei Liu. "Design of the VRLA Battery Real-Time Monitoring System Based on Wireless Communication." Sensors 20, no. 15 (August 4, 2020): 4350. http://dx.doi.org/10.3390/s20154350.

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The VRLA (valve-regulated lead-acid) battery is an important part of a direct current (DC) power system. In order to resolve issues of large volume, complicated wiring, and single function for a battery monitoring system at present, we propose to build a novel intelligent-health-monitoring system. The system is based on the ZigBee wireless communication module for collecting voltage, temperature, internal resistance, and battery current in real-time. A general packet radio service (GPRS) network is employed for interacting data with the cloud-monitoring platform. The system can predict the remaining capacity of the battery combined with the software algorithm for realizing real-time monitoring of the battery’s health status and fault-warning, providing a basis for ensuring the safe and reliable operation of the battery. In addition, the system effectively integrates most of the circuits of the battery status collector onto one chip, which greatly reduces the size and the power consumption of the collector and also provides a possibility for embedding each VRLA battery with a chip that can monitor the health status during the whole life. The test results indicate that the system has the characteristics of real-time monitoring, high precision, small-volume, and comprehensive functions.

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Zheng, Jian Feng, and Hao Qiang. "Design of the System for Online Monitoring Dielectric Loss." Advanced Materials Research 472-475 (February 2012): 1568–71. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.1568.

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For knowing the dielectric loss of high-voltage capacitive electrical equipment timely and mastering the electrical insulation of high voltage equipment effectively to ensure the reliable operation of these voltage equipments, an online monitoring system is designed in this paper based on the practical project. The system is made up of two parts including lower computer and upper computer. Using the microcontroller C8051F023 as the core of the lower computer and adopting an improved zero-crossing comparison method, the measurement of dielectric loss is realized and the data are sent to upper computer by wireless way. SQL2000 is used in the upper computer for data management, which can be real-time displayed, inquired and printed in report forms. At present, this monitoring system has successfully applied in the Houqiao 330 kV transformer substation in Ningxia. The operating results show that the system can meet well the online monitoring demand of the high voltage capacitive electrical equipment.

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Yu, Hui Jun, Zhi Wei Zhou, Cai Biao Chen, and Ju Hui Gu. "Design of Locomotive Energy Consumption Monitoring System." Advanced Materials Research 960-961 (June 2014): 1325–30. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.1325.

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The paper introduces the structure of locomotive energy consumption monitoring system, technical parameters and the method of software design. The system uses electric energy metering chip CS5463, ARM kernel STM32F103R8T6, GPRS wireless communication module and RS485 communication interface to realize the multi-system locomotive AC and DC measurement, remote meter reading and other devices and locomotive communication connection. The liquid crystal display LCD stores the locomotive power information, the current, voltage, power and energy data with their own real-time clock time-sharing data fragmentation such as type test on the system, the system of high precision, strong anti-interference ability, low power consumption, safety etc.

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Chang, Jiaqing, Fan Jiang, Teng Shen, Mingshan Chi, and Bo Huang. "Waveform adjustment for obtaining higher quality droplets based on a multi-satellite droplet monitoring system." Modern Physics Letters B 33, no. 09 (March 30, 2019): 1950105. http://dx.doi.org/10.1142/s0217984919501057.

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In the field of printed electronics, there are many kinds of ink with a variety of performance and parameters. In order to generate high-quality droplets, it is necessary to eject droplet for testing in order to discover the appropriate excitation voltage and waveform shape. Consequently, a real-time and efficient droplet monitoring system is needed to monitor droplet formation quality. A multi-satellite droplet monitoring system is proposed in this paper. It can not only monitor the droplet with multiple satellites but also can generate the instantaneous droplet position curve, length curve and velocity curve. The waveform voltage and dwell time can be adjusted in real-time to obtain droplets with higher quality and efficiency.

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Pan, Jianhong, Aidi Dong, Jiashu Fan, and Yang Li. "Online Static Voltage Stability Monitoring for Power Systems Using PMU Data." Mathematical Problems in Engineering 2020 (December 29, 2020): 1–8. http://dx.doi.org/10.1155/2020/6667842.

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A new online static voltage stability monitoring method for power systems is proposed by using phasor measurement unit (PMU) data in this paper. This approach uses the real-time power, voltage, and phase angle data collected by the PMU to estimate the power flow Jacobian matrix of the system, and then the static voltage stability is monitored via the minimum singular values (MSVs) of the power flow Jacobian matrix. The novelty of the approach lies in the fact that it only utilizes PMU data for implementing online monitoring of the power system static voltage stability, independent of the physical model and its parameters. The application results on the IEEE 57-bus test system verify the effectiveness of the proposed approach.

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Sabry, A. H., W. Z. W. Hasan, MZA Ab Kadir, M. A. M. Radzi, and S. Shafie. "Wireless Monitoring Prototype for Photovoltaic Parameters." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 1 (July 1, 2018): 9. http://dx.doi.org/10.11591/ijeecs.v11.i1.pp9-17.

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Photovoltaic (PV) parameters monitoring is very important for the implementation and optimum utilization of solar energy as the electricity source. This work proposes a design of simple, cost-efficient, and low consumption wireless PV monitoring system enhanced by a driving software for recording the PV system parameters. The circuit is designed with a minimum number of components to manage four types of sensors to measure four parameters that are essential for real-time analysis and prediction of PV performance. The only pair of XBee RF modules as an active component, while others are passive, includes resistors and capacitors for PV current, and voltage those for signal conditioning, temperature and irradiance sensors were also involved. The paper presents a prototype system for high voltage series-connected PV array in the range (100-310) V and 3 ampere as a maximum current, while the sampling frequency can be configured up to 14 sample/Sec in applications of the short period for data logging for the four channels. The proposed system succeeds in providing real-time monitoring with lower cost and can be extended for more functions such as controlling tracking system and failure diagnosis. Photovoltaic (PV) parameters monitoring is very important for the implementation and optimum utilisation of solar energy as electricity source. This work proposes a design of simple, cost-efficient, and low consumption wireless PV monitoring system enhanced by a driving software for recording the PV system parameters. The circuit is designed with a minimum number of components to manage four types of sensors to measure four parameters that are essential for real-time analysis and prediction of PV performance. Only pair of XBee RF modules as an active components, while othera are passive, includes resistors and capacitors for PV current, and voltage those for signal conditioning, temperature and irradiance sensors were also involved. The paper presents a prototype system for high voltage series connected PV array in the range (100-310) V and 3 ampere as a maximum current, while the sampling frequency can be configured up to 14 sample/Sec in applications of the short period for data logging for the four channels. The proposed system succeeds in providing real-time monitoring with lower cost and can be extended for more functions such as controlling tracking system and failure diagnosis.

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Li, Jing, Hong Pan, Shu Juan Zhang, and Ling Fang Sun. "Development of the On-Line Monitoring System for Fuel Cell Voltage." Advanced Materials Research 219-220 (March 2011): 383–86. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.383.

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According to the single battery's series structure in the fuel cell stack, we develop an on-line fuel cell voltage monitoring system, and realize VISA library functions’ call and operation data acquisition and storage successfully in the Delphi development environment. It’s introduced mainly that the monitoring principle, hardware structure, software design and the main feature. The actual application proves that this system has realized high-precision and real-time monitoring of the output voltage of the fuel cell for multi-channel, and has multi-condition operation by setting original parameters easily, thereby, the system has more applicability and well reliability.

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Fang, Hong, and Lin Cai Deng. "Design of Embedded Indoor Multiple Dangerous Gas Detection Alarm System." Applied Mechanics and Materials 475-476 (December 2013): 209–13. http://dx.doi.org/10.4028/www.scientific.net/amm.475-476.209.

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This paper describes a embedded system,using ARM processor LPC2148 as the core of hardware,and using MQ series gas sensor as the detection component,and using ENC28J60 as the network communication interface,and using uc / OS-II real-time operating system as software platform for the real-time remote monitoring of density of harmful gases indoor.In this system,voltage signals from MQ sensor will be processed by the ARM micro-controller and be displayed in the LCD.Then they will be compared with the set voltage value.If they are greater than the set value,sound and light alarm will be touched off,and data will be transfered to the network through the ARM ENC28J6 network interface.Above all,the system is able to achieve accurate detection, alarm and remote monitoring indoor dangerous gases.

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Sahu, Pankaj, and M. K. Verma. "Online monitoring of voltage stability margin using PMU measurements." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 2 (April 1, 2020): 1156. http://dx.doi.org/10.11591/ijece.v10i2.pp1156-1168.

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With the growing smart grid concept it becomes important to monitor health of the power system at regular intervals for its secure and reliable operation. Phasor Measurement Units (PMUs) may play a vital role in this regard. This paper presents voltage stability monitoring in real time framework using synchrophasor measurements obtained by PMUs. Proposed approach estimates real power loading margin as well as reactive power loading margin of most critical bus using PMU data. As system operating conditions keep on changing, loading margin as well as critical bus information is updated at regular intervals using fresh PMU measurements. Simulations have been carried out using Power System Analysis Toolbox (PSAT) software. Accuracy of proposed Wide Area Monitoring System (WAMS) based estimation of voltage stability margin has been tested by comparing results with loading margin obtained by continuation power flow method (an offline approach for accurate estimation of voltage stability margin) under same set of operating conditions. Case studies performed on IEEE 14-bus system, New England 39-bus system and a practical 246-bus Indian power system validate effectiveness of proposed approach of online monitoring of loading margin.

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López-Alonso, Borja, Héctor Sarnago, Óscar Lucía, Pablo Briz, and José Miguel Burdío. "Real-Time Impedance Monitoring During Electroporation Processes in Vegetal Tissue Using a High-Performance Generator." Sensors 20, no. 11 (June 2, 2020): 3158. http://dx.doi.org/10.3390/s20113158.

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Classical application of electroporation is carried out by using fixed protocols that do not clearly assure the complete ablation of the desired tissue. Nowadays, new methods that pursue the control of the treatment by studying the change in impedance during the applied pulses as a function of the electric field are being developed. These types of control seek to carry out the treatment in the fastest way, decreasing undesired effects and treatment time while ensuring the proper tumour ablation. The objective of this research is to determine the state of the treatment by continuously monitoring the impedance by using a novel versatile high-voltage generator and sensor system. To study the impedance dynamics in real time, the use of pulses of reduced voltage, below the threshold of reversible electroporation, is tested to characterise the state-of-the-treatment without interfering with it. With this purpose, a generator that provides both low voltage for sense tissue changes and high voltage for irreversible electroporation (IRE) was developed. In conclusion, the characterisation of the effects of electroporation in vegetal tissue, combined with the real-time monitoring of the state-of-the-treatment, will enable the provision of safer and more effective treatments.

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Gianoglio, Christian, Edoardo Ragusa, Andrea Bruzzone, Paolo Gastaldo, Rodolfo Zunino, and Francesco Guastavino. "Unsupervised Monitoring System for Predictive Maintenance of High Voltage Apparatus." Energies 13, no. 5 (March 2, 2020): 1109. http://dx.doi.org/10.3390/en13051109.

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The online monitoring of a high voltage apparatus is a crucial aspect for a predictive maintenance program. Partial discharges (PDs) phenomena affect the insulation system of an electrical machine and—in the long term—can lead to a breakdown, with a consequent, significant economic loss; wind turbines provide an excellent example. Embedded solutions are therefore required to monitor the insulation status. The paper presents an online system that adopts unsupervised methodologies for assessing the condition of the monitored machine in real time. The monitoring process does not rely on any prior knowledge about the apparatus; nonetheless, the method can identify the relevant drifts in the machine status. In addition, the system is specifically designed to run on low-cost embedded devices.

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Wang, Hong Liang, Hai Fei Ding, Jin Qi Wang, and Pan Liu. "The Design of Power Supply and Distribution Real-Time Monitoring System Based on PXI Bus for Telemetering System." Advanced Materials Research 482-484 (February 2012): 1725–28. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.1725.

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Telemetering power supply and distribution system is an important part of the telemetry system. Arming at a telemetering power supply and distribution system, this paper adopts digital multimeter and multiplex switch based on PXI bus to realize 32-channel power supply and distribution DC voltage signal acquisition, storage, real-time monitoring and analysis, and also automatic data interpretation. The system consists of PXI host, multiplex switch, digital multimeter, interface unit, a control software and so on, which has the advantages of high precision, high efficiency, easy to operate, and has been used successfully in the test of a telemetry system.

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Pan, Zhi Yong, Quan Cai Wang, and Wei Hong Ren. "Based on the Online Monitoring and Fault Diagnosis System of the Main Hoist for Mine." Applied Mechanics and Materials 42 (November 2010): 250–54. http://dx.doi.org/10.4028/www.scientific.net/amm.42.250.

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According to the reality, an online monitoring and fault diagnosis system of the main hoist for Mine was designed in this article. The system adopts the signal acquisition and processing, fault diagnosis, Web visualization, network real-time database and other related technologies, Real-time monitoring the current, voltage, temperature, speed, vibration and other parameters of the main elevators to Achieve the goals that Increasing efficiency by downsizing, protecting the safe operation of equipment, reducing the maintenance costs.

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Ahmed, Musse Mohamud, Md Ohirul Qays, Ahmed Abu-Siada, S. M. Muyeen, and Md Liton Hossain. "Cost-Effective Design of IoT-Based Smart Household Distribution System." Designs 5, no. 3 (August 24, 2021): 55. http://dx.doi.org/10.3390/designs5030055.

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The Internet of Things (IoT) plays an indispensable role in present-day household electricity management. Nevertheless, practical development of cost-effective intelligent condition monitoring, protection, and control techniques for household distribution systems is still a challenging task. This paper is taking one step forward into a practical implementation of such techniques by developing an IoT Smart Household Distribution Board (ISHDB) to monitor and control various household smart appliances. The main function of the developed ISHDB is collecting and storing voltage, current, and power data and presenting them in a user-friendly way. The performance of the developed system is investigated under various residential electrical loads of different energy consumption profiles. In this regard, an Arduino-based working prototype is employed to gather the collected data into the ThingSpeak cloud through a Wi-Fi medium. Blynk mobile application is also implemented to facilitate real-time monitoring by individual consumers. Microprocessor technology is adopted to automate the process, and reduce hardware size and cost. Experimental results show that the developed system can be used effectively for real-time home energy management. It can also be used to detect any abnormal performance of the electrical appliances in real-time through monitoring their individual current and voltage waveforms. A comparison of the developed system and other existing techniques reveals the superiority of the proposed method in terms of the implementation cost and execution time.

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Zeng, Jie, Li Jiang, and Yuan Ma. "The Calibration & Monitor System of Battery Operation Parameters Simulation Generator Based on LabVIEW." Advanced Materials Research 645 (January 2013): 272–75. http://dx.doi.org/10.4028/www.scientific.net/amr.645.272.

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A battery operation parameters simulation generator was specially designed for testing battery management units. Its purpose is to provide a test platform for the industrialization of the battery management units. The parameters simulation generator can provide the battery in various conditions of voltage, current, temperature and other analog signals. In order to calibrate the battery simulation parameters in real-time, a complete set of the calibration and monitoring interface was designed based on LabVIEW (Laboratory Virtual Instrument Engineering Workbench) environment. The human-computer interface can achieve calibration control of voltage, current, temperature signals online, data analysis, data display, data storage, and fault diagnosis. Test results show that the developed human-computer interface is able to realize real-time calibration and monitoring functions for battery operation parameters simulation generator. Furthermore，the interface also has good real-time and stability, and has a certain application value on the testing and evaluation of the battery management unit.

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Haizhou, Zhai. "Design of an Online Monitoring System of Lithium Ion Energy Storage Batteries for a Distributed Power Station." International Journal of Online and Biomedical Engineering (iJOE) 14, no. 12 (December 23, 2018): 191. http://dx.doi.org/10.3991/ijoe.v14i12.9402.

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Aiming at the online monitoring of real-time operating of lithium-ion energy storage batteries for distributed power station, this paper studies the online monitoring system of lithium-ion energy storage batteries based on B/S network structure. The system consists of a battery status information collection unit, a centralized control unit, and a remote monitoring center. The battery status information collection unit detects the current, voltage, temperature and other parameters of the lithium ion energy storage battery in real time, transmits the data to the centralized control unit for data processing and real-time estimation of the SOC of the battery, and then the centralized control unit transmits the measurement parameters through the Internet network. The remote monitoring center monitors and analyzes the battery real-time status data, accurately calculates the battery SOC, realizes the online real-time monitoring of the lithium ion battery, prevents the lithium ion battery from overcharging, over-discharging, overheating, and promotes the safe and stable operation of the lithium-ion energy storage battery.

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Sun, Zhi Wei, and Xiao Liu. "A Novel Index to Voltage Collapse based on the System Physical Quantities." Advanced Materials Research 433-440 (January 2012): 6060–64. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.6060.

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This paper presents a new index to voltage collapse based on the system physical quantities such as nodes' voltages and injected powers.The index has a critical value. It is physically meaningful, varies smoothly when the system changes (i.e. does not exhibit discontinous changes on value for small system changes such as oLTCs´action). This new index does not need to build any models and not be limited with load patterns.Moreover it can be used to real time system monitoring because it can be easily calculated , and can alert operators to take appropriate actions. The simulate result is very promising.

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Yalcin, Turgay, and Muammer Ozdemir. "An Implementation of Exploratory Start for Power Quality Disturbance Pattern Recognition." Transactions on Environment and Electrical Engineering 1, no. 3 (October 12, 2016): 86. http://dx.doi.org/10.22149/teee.v1i3.50.

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Identification of system disturbances and detection of them guarantees smart grids power quality system reliability and long lasting life of the power system. The key goal of this study is to generate non - time consuming features for CPU, for recognizing different types of non-stationary and non-linear smart grid faults based on signal processing techniques. This paper proposes a new solution for real time power system monitoring against power quality faults focusing on voltage sag and noise. EEMD is used for noise reduction with first intrinsic mode function (imf1). Hilbert Huang Transform (HHT) is used for generating instantaneous amplitude (IA) and instantaneous frequency (IF) feature of real time voltage sag power signal. The proposed power system monitoring system is able to detect power system voltage sag disturbances and capable of recognize and remove EMI (Electromagnetic Interference)-Noise. In this study based on experimental studies, Hilbert Huang based pattern recognition technique was used to investigate power signal to diagnose voltage sag in power grid. SVM and Decision Tree (C4.5) were operated and their achievements were matched for calculation error and CPU time. According to the analysis, decision tree algorithm without dimensionality reduction produces the best solution.

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Ullah, Ramzan, Karl Doerfer, Pawjai Khampang, Faraneh Fathi, Wenzhou Hong, Joseph E. Kerschner, and Bing Yu. "Real-Time Optical Monitoring of Endotracheal Tube Displacement." Biosensors 10, no. 11 (November 12, 2020): 174. http://dx.doi.org/10.3390/bios10110174.

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Proper ventilation of a patient with an endotracheal tube (ETT) requires proper placement of the ETT. We present a sensitive, noninvasive, operator-free, and cost-effective optical sensor, called Opt-ETT, for the real-time assessment of ETT placement and alerting of the clinical care team should the ETT become displaced. The Opt-ETT uses a side-firing optical fiber, a near-infrared light-emitting diode, two photodetectors with an integrated amplifier, an Arduino board, and a computer loaded with a custom LabVIEW program to monitor the position of the endotracheal tube inside the windpipe. The Opt-ETT generates a visual and audible warning if the tube moves over a distance set by the operator. Displacement prediction is made using a second-order polynomial fit to the voltages measured from each detector. The system is tested on ex vivo porcine tissues, and the accuracy is determined to be better than 1.0 mm. In vivo experiments with a pig are conducted to test the performance and usability of the system.

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Lin, Ju Guang, and Shuo Zhao. "The Design of Battery Management System Based on MC9S08DZ60 and the Monitor Backstage Based on VB6.0." Applied Mechanics and Materials 575 (June 2014): 668–71. http://dx.doi.org/10.4028/www.scientific.net/amm.575.668.

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This paper has designed the battery management system based on microcontroller MC9S08DZ60 for real-time monitoring for all battery parameters of the battery and realizing charge and discharge. This system is mainly consisted of current and voltage module, the temperature detection module, charge and discharge module and CAN communication module. It can implement the charge and discharge of the battery by analyzing the data of each battery parameters. Besides, this paper has designed the monitor backstage based on VB to get real time display and control of the voltage parameter which needs monitoring and controlling. At last, this paper also has applied USB - CAN set instruments to implement the communications and the connection between battery management system and PC communications.

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Rivai, Ahmad, Nasrudin Abd Rahim, Mohamad Fathi Mohamad Elias, and Jafferi Jamaludin. "Analysis of Photovoltaic String Failure and Health Monitoring with Module Fault Identification." Energies 13, no. 1 (December 24, 2019): 100. http://dx.doi.org/10.3390/en13010100.

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In this paper, photovoltaic (PV) string failure analysis and health monitoring of PV modules based on a low-cost self-powered wireless sensor network (WSN) are presented. Simple and effective fault detection and diagnosis method based on the real-time operating voltage of PV modules is proposed. The proposed method is verified using the developed health monitoring system which is installed in a grid-connected PV system. Each of the PV modules is monitored via WSN to detect any individual faulty module. The analysis of PV string failure includes several electrical fault scenarios and their impact on the PV string characteristics. The results show that a degraded or faulty module exhibits low operating voltage as compared to the normal module. The developed health monitoring system also includes a graphical user interface (GUI) program which graphically displays the real-time operating voltage of each module with colors and thus helping users to identify the faulty modules easily. The faulty modules identification approach is further validated using the PV module electroluminescence (EL) imaging system.

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Journal articles on the topic 'Voltage real-time monitoring system'

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