The Improvement about the Reliability of Sampling Based on Process Bus in Smart Substation

2014 ◽  
Vol 1070-1072 ◽  
pp. 1398-1404
Author(s):  
Chen Fan ◽  
Yi Min Ni ◽  
Ren Hui Dou ◽  
Xin Xu ◽  
Zhi Qiang Yao ◽  
...  
Keyword(s):  
Data Processing ◽  
Data Acquisition ◽  
Network Optimization ◽  
Data Transmission ◽  
Network Architecture ◽  
Transmission Network ◽  
Technical Problems ◽  
System Method ◽  
Smart Substation ◽  
New System

The sampling based on process bus is not widely used in smart substation because there are still some technical problems on synchronization, the design of network architecture and sampling data receiving and processing areas. There are some researches about the problems are carried out, but they only focus on part of them and cannot give the whole solution. In order to improve the reliability of network sampling, a new system method which includes all the segments of the sampling based on process such as the synchronization of data acquisition, data transmission, network optimization and data processing are presented. In the data acquisition segment, the synchronization based on IEEE1588 is provided, In the data transmission segment, a new hardware architecture which is based on FPGA+DSP+VxWorks is described, in the segment of network optimization, the topology structure and virtual LAN are suggested. At last, the automatic resampling is proposed in the data receiving and processing segment. It will be useful to improve the reliability of sampling based on process bus in smart substation.

Dynamic Information Acquisition and Processing Technology of Pump Axial Force

2011 ◽  
Vol 346 ◽  
pp. 253-258
Author(s):  
Xin Sheng Che ◽  
Xing Hua Wang ◽  
Yi Fei Gao ◽  
Hui Xu
Keyword(s):  
Data Processing ◽  
Data Acquisition ◽  
Axial Force ◽  
Virtual Instrument ◽  
Information Acquisition ◽  
Force Measurement ◽  
Sampling Rate ◽  
Time Data ◽  
Technical Problems ◽  
Uncertainty Of Measurements

Dynamic measurement of pump axial force has relationships with many fields such as multi-channel information collection and synthesis, sampling rate settings, filter parameters selecting, resolution and uncertainty of measurements analysis and other technical problems. Based on the range and resolution of axial force measurement required, the word length of digital bits to be collected should be determined. Based on the multi-information provided by the force transducers and the working state of the pump, the frequency of data acquisition, number of measurement channels and filter parameters can be determined. The control of data acquisition module is by use of the virtual instrument technologies and processing and display of real-time data are proceeded. The transmission structure of axial force is illustrated and the method of data processing is described. Data processing results show the effectiveness by the filter in restrain the site interference.

scholarly journals A Review of Monitoring Technologies for Solar PV Systems Using Data Processing Modules and Transmission Protocols: Progress, Challenges and Prospects

2021 ◽  
Vol 13 (15) ◽  
pp. 8120
Author(s):  
Shaheer Ansari ◽  
Afida Ayob ◽  
Molla S. Hossain Lipu ◽  
Mohamad Hanif Md Saad ◽  
Aini Hussain
Keyword(s):  
Data Processing ◽  
Data Transmission ◽  
Performance Enhancement ◽  
Critical Discussion ◽  
Signal Interference ◽  
Future Research ◽  
Transmission Protocol ◽  
Range Data ◽  
Solar Pv ◽  
Monitoring Technologies

Solar photovoltaic (PV) is one of the prominent sustainable energy sources which shares a greater percentage of the energy generated from renewable resources. As the need for solar energy has risen tremendously in the last few decades, monitoring technologies have received considerable attention in relation to performance enhancement. Recently, the solar PV monitoring system has been integrated with a wireless platform that comprises data acquisition from various sensors and nodes through wireless data transmission. However, several issues could affect the performance of solar PV monitoring, such as large data management, signal interference, long-range data transmission, and security. Therefore, this paper comprehensively reviews the progress of several solar PV-based monitoring technologies focusing on various data processing modules and data transmission protocols. Each module and transmission protocol-based monitoring technology is investigated with regard to type, design, implementations, specifications, and limitations. The critical discussion and analysis are carried out with respect to configurations, parameters monitored, software, platform, achievements, and suggestions. Moreover, various key issues and challenges are explored to identify the existing research gaps. Finally, this review delivers selective proposals for future research works. All the highlighted insights of this review will hopefully lead to increased efforts toward the enhancement of the monitoring technologies in future sustainable solar PV applications.

Design and Implement of Data Acquisition System Based on Reconfigurable Computing

2012 ◽  
Vol 546-547 ◽  
pp. 1393-1397
Author(s):  
Zhi Wen Xiong ◽  
Chen Guang Xu ◽  
Hong Zeng
Keyword(s):  
Data Processing ◽  
Data Acquisition ◽  
Reconfigurable Computing ◽  
Rapid Development ◽  
Physical Property ◽  
Data Acquisition System ◽  
Digital System ◽  
Working Environment ◽  
Acquisition System ◽  
Computing Technology

Data acquisition begins with the physical phenomenon or physical property to be measured. Examples of this include temperature, gas pressure, and light intensity, and force, fluid flow, regardless of the type of physical property to be measured. Physical property converted into digital, and then by the computer for storage, processing, display or printing process, the corresponding system is called data acquisition system. With the rapid development of computer technology, data acquisition systems quickly gained popularity. A variety of products based on digital technology have been created. Digital System spread quickly; it’s mainly the following two advantages: the first is the digital processing flexible and convenient; the second is a digital system is very reliable. The main idea of Reconfigurable computing technology [1] is using the FPGA [2][3] allows the system has a dynamically configurable capacity, suitable for harsh environment applications, improve the speed of data processing. By the use of dynamic reconfigurable FPGA devices can be realized on the hardware logic function modification, application of reconfigurable computing technology can improve the speed of data processing. Data acquisition system is widely applied in many fields, and often used the abominable working environment place. The reconfigurable computing technology, can greatly improve the data acquisition system reliability and safety. The paper introduces a kind of multi-channel data acquisition system based on USB bus and FPGA, the factors affecting the performance of system are discussed, and describes how to use reconfigurable computing technology to improve the efficiency of data acquisition system while reduce energy consumption. The system in this paper uses AD's AD9220, ALTERA's EP1C6-8 and IDT's IDT70V24, Cypress’s CY7C68013.

Design of Data Transfer System Based on PCI Express Interface Applied in High-Speed Railway

2012 ◽  
Vol 229-231 ◽  
pp. 1543-1546
Author(s):  
Xiao Bo Zhou ◽  
Min Xia ◽  
Hai Long Cheng
Keyword(s):  
Data Acquisition ◽  
Data Transmission ◽  
High Speed ◽  
Data Transfer ◽  
Transmission Method ◽  
High Speed Railway ◽  
Pci Express ◽  
Data Acquisition Card ◽  
High Speed Data Acquisition ◽  
High Speed Data

To improve data transmission performance of the data acquisition card, a design of high-speed data transmission system is proposed in the thesis. Using FPGA of programmable logic devices, adopting Verilog HDL of hardware description language, the design of modularization and DMA transmission method is implemented in FPGA. Eventually the design implements the data transmission with high-speed through PCI Express interface. Through simulation and verification based on hardware system, this design is proved to be feasible and can satisfy the performance requirements of data transmission in the high-speed data acquisition card applied in high-speed railway communication. The design also has some value of application and reference for a universal data acquisition card.

A Study of Remote Monitoring Fire Alarm System Based on Internet of Things

2014 ◽  
Vol 977 ◽  
pp. 330-333
Author(s):  
Qi Lin Hao ◽  
Ping Xian Yang ◽  
Ming Jie Wang ◽  
Rui Ma
Keyword(s):  
Remote Monitoring ◽  
Data Transmission ◽  
Short Distance ◽  
Alarm System ◽  
Transmission Network ◽  
Wireless Data ◽  
Fire Alarm ◽  
Fire Monitoring ◽  
Wireless Data Transmission ◽  
Fire Alarm System

In this paper, in order to achieve real-time remote monitoring of fire site, we designed a intelligent remote fire monitoring system based on ZigBee network and GPRS network. This system, used ZigBee and sensor to build data acquisition and short distance transmission network and combined with GPRS wireless data transmission and SMS alarm ,cooperates with the server and PC to build a remote monitoring scheme based on GRPS.

Design of multi-indicator integrated testing system for tobacco intelligent silk production line

2021 ◽  
pp. 1-13
Author(s):  
Dayong Guo ◽  
Qing Hu
Keyword(s):  
Response Time ◽  
Data Transmission ◽  
Production Line ◽  
Network Architecture ◽  
Production Management ◽  
Detection System ◽  
System Response ◽  
Testing System ◽  
Ring Network ◽  
Transmission Speed

Aiming at the problems of low precision, slow data transmission speed and long response time of silk quality and temperature control in tobacco intelligent production line, a multi-index testing system is designed. According to the characteristics of PROFIBUS fieldbus technology, combined with PROFIBUS transmission technology, a factory level information network is formed with PROFIBUS-DP as the exchange mode. Based on the PROFIBUS technology, the dual redundancy structure of control ring network and management information ring network is adopted, and the whole network architecture is constructed by logic layering. From the point of view of building enterprise MES system, it locates real-time production monitoring, production task receiving and production line related data collection, integrates equipment control layer, centralized monitoring layer and production management layer, and designs system function structure. The functional structure of the system, and the establishment of a number of data tables, to achieve a tobacco intelligent production line silk quality detection system design. Experimental results show that this method can effectively speed up the data transmission speed and shorten the system response time.

THE CONCEPT OF MANAGING THE DATA NETWORK BASED ON SELF-LEARNING SYSTEMS

2020 ◽  
Author(s):  
С.Р. РОМАНОВ
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Data Transmission ◽  
Network Control ◽  
Learning Systems ◽  
Optimal Routing ◽  
Transmission Network ◽  
Data Traffic ◽  
Data Network ◽  
Self Learning

Рассмотрен принцип управления сетью передачи данных (СПД)с помощью искусственной нейронной сети. Предложена концепция проведения вычислений при решении задачи оптимальной маршрутизации трафика данных. Приведен алгоритм управления сетью СПД на базе нейронной сети Хэмминга. The principle of data transmission network control using an artificial neural network is considered. The concept of carrying out calculations when solving the problem of optimal routing of data traffic is proposed. The algorithm for controlling the data transmission network based on the Hamming neural network is presented.

scholarly journals Development of a new seismic-data acquisition station based on system-on-a-programmable-chip technology

2013 ◽  
Vol 56 (3) ◽  
Author(s):  
Zhang Qi-sheng ◽  
Deng Ming ◽  
Guo Jian ◽  
Luo Wei-bing ◽  
Wang Qi ◽  
...  
Keyword(s):  
Power Consumption ◽  
Data Acquisition ◽  
Digital Filter ◽  
Data Transmission ◽  
Seismic Data ◽  
Low Noise ◽  
High Definition ◽  
Control Data ◽  
Seismic Data Acquisition ◽  
Transmission Speed

<p>There has been considerable development of seismic detectors over the last 80 years. However, there is still a need to further develop new earthquake exploration and data acquisition systems with high precision. In particular, for China to keep up with the latest technology of these systems, it is important to be involved in the research and development, instead of importing systems that soon fall behind the latest technology. In this study, the features of system-on-a-programmable-chip (SoPC) technology are analyzed and used to design a new digital seismic-data acquisition station. The hardware circuit of the station was developed, and the analog board and the main control data-transmission board were designed according to the needs of digital seismic-data acquisition stations. High-definition analog-to-digital converter sequential digital filter technology of the station (cascade integrator comb filter, finite impulse response digital filter) were incorporated to provide advantages to the acquisition station, such as high definition, large dynamic scope, and low noise. A specific data-transmission protocol was designed for the station, which ensured a transmission speed of 16 Mbps along a 55-m wire with low power consumption. Synchronic acquisition was researched and developed, so as to achieve accuracy better than 200 ns. The key technologies were integrated into the SoPC of the main control data-transmission board, so as to ensure high-resolution acquisition of the station, while improving the accuracy of the synchronic acquisition and data-transmission speed, lowering the power consumption, and preparing for the follow-up efforts to tape out.</p>

scholarly journals Progress in Data Transmission and Storage for Long Pulse Data Acquisition System

2021 ◽  
Vol 2113 (1) ◽  
pp. 012065
Author(s):  
Yu Gu ◽  
Mengqi Fan ◽  
Chuanqian Tang ◽  
Guojing Zhang ◽  
Xiaodan Zhang
Keyword(s):  
Control System ◽  
Data Acquisition ◽  
Data Transmission ◽  
High Speed ◽  
Short Pulse ◽  
Test System ◽  
Data Types ◽  
Pulse Experiment ◽  
Long Pulse ◽  
And Storage

Abstract Since the study in the field of fusion has gradually developed toward the long-pulse experiment mode, long-pulse data has gradually become one of the main data types for pulsed experiments in the field of fusion. For long-pulse data, which is a kind of pulse-type data, it will be more difficult to transmit and store than short-pulse data because of its significant characteristics. In addition, in the design of data acquisition and control system (DACS) in fusion field, Experimental Physics and Industrial Control System (EPICS) has now gradually become the main framework of experimental control system to meet the diversity of devices and complexity of subsystems in large experimental system. However, due to the limitation of EPICS, its effectiveness in handling data transmission and storage under high speed data acquisition is not satisfactory. To solve the data transmission and storage under high-speed sampling, this paper proposes a data transmission and storage solution based on TCP/IP protocol and MDSplus database, which is designed with the concept of segmentation, i.e., data generated from experiments longer than 100 seconds are uploaded and stored in a segmented form. Currently, this system has been tested and applied, and the test result shows that the solution is feasible and the overall test system operates stably and reliably.

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