Design of Monitoring System for Frequency Converter Sets Based on PCI Bus

2011 ◽  
Vol 128-129 ◽  
pp. 1409-1412
Author(s):  
Xin Yu Yang ◽  
Pei Yuan Cheng ◽  
Xiao Quan Li
Keyword(s):  
Monitoring System ◽  
Virtual Instrument ◽  
High Speed ◽  
High Reliability ◽  
Frequency Converter ◽  
Test System ◽  
Pci Bus ◽  
Turbo Generator ◽  
The Status ◽  
Hardware Circuit

It is difficult to finish fully and professional testing about frequency converter sets when it was broken or repaired. Aimed at this problem, monitoring system for frequency converter sets is designed. Its hardware circuit is based on IPC platform and PCI bus and software platform is based on Visual Basic and VI (Virtual instrument) technology. It can finish controlling the work status and checking voltage, power etc. and temperature of key parts real-time about the set. Simultaneously it can give an alarm when the status is abnormal. Its results has characteristics of high reliability, high speed and intuitionistic. So it can improve efficiency of test system maximum and save repair expenditure. The system helps for improving reliability of gas turbo-generator set and power quality.

Study on Common Ground Testing Platform Technology for Telemetry Core Equipment

2012 ◽  
Vol 220-223 ◽  
pp. 1472-1475
Author(s):  
Qiu Lin Tan ◽  
Xiang Dong Pei ◽  
Si Min Zhu ◽  
Ji Jun Xiong
Keyword(s):  
Data Exchange ◽  
Common Ground ◽  
Digital Signal ◽  
Test System ◽  
Automatic Test System ◽  
Module Design ◽  
The Status ◽  
Output Module ◽  
And Performance ◽  
Hardware Circuit

On the basis of automatic test system of the status in domestic and foreign, by analysis of the various functions and performance of the integrated test system, a design of the integrated test system is proposed, FPGA as the core logic controller of the hardware circuit. The system of the hardware design include: digital signal source output modules, analog output module and PCM codec module. Design of hardware circuit are mainly described. In addition, a detailed analysis of some key technologies in the design process was given. Overall, its data exchange with host computer is through the PCI card, data link and bandwidth can be expanded in accordance with the actual needs. The entire system designed in the modular principle, which has a strong scalability.

scholarly journals Research on Performance Test System of Space Harmonic Reducer in High Vacuum and Low Temperature Environment

Machines ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Jing Wang ◽  
Zhihua Wan ◽  
Zhurong Dong ◽  
Zhengguo Li
Keyword(s):  
Low Temperature ◽  
High Speed ◽  
Performance Test ◽  
High Reliability ◽  
High Vacuum ◽  
Test System ◽  
Low Noise ◽  
Speed Ratio ◽  
Space Harmonic ◽  
Temperature Environment

The harmonic reducer, with its advantages of high precision, low noise, light weight, and high speed ratio, has been widely used in aerospace solar wing deployment mechanisms, antenna pointing mechanisms, robot joints, and other precision transmission fields. Accurately predicting the performance of the harmonic reducer under various application conditions is of great significance to the high reliability and long life of the harmonic reducer. In this paper, a set of automatic harmonic reducer performance test systems is designed. By using the CANOpen bus interface to control the servo motor as the drive motor, through accurately controlling the motor speed and rotation angle, collecting the angle, torque, and current in real time, the life cycle test of space harmonic reducer was carried out in high vacuum and low temperature environment on the ground. Then, the collected data were automatically analyzed and calculated. The test data of the transmission accuracy, backlash, and transmission efficiency of the space harmonic reducer were obtained. It is proven by experiments that the performance data of the harmonic reducer in space work can be more accurately obtained by using the test system mentioned in this paper, which is convenient for further research on related lubricating materials.

scholarly journals Integrated Durability of Automobile Alternator Test System Design Based on LabVIEW

2014 ◽  
Vol 8 (1) ◽  
pp. 839-845 ◽  
Author(s):  
Wu Weibin ◽  
Feng Yue ◽  
Du Junyi ◽  
Xu Pengbo ◽  
Feng Yunlin ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Automotive Industry ◽  
Virtual Instrument ◽  
Measurement Errors ◽  
High Speed ◽  
Performance Test ◽  
Test System ◽  
Electrical Performance ◽  
Durability Test ◽  
Limit Test

New standards in the automotive industry highlighted the situation of the actual operation of the alternator and a variety of harsh environment simulation limit test. Using new standards in the automotive industry as a guide, this article presents a virtual instrument based on the durability of automobile generator integrated test system. The design adopt virtual instrument technology in designing the system, Graphic language, LabVIEW is applied in writing measure-control program. The system uses a lot of features on LABVIEW, including Data acquisition, control of serials port, etc. Test implementation uses the host computer via RS232 and RS485 communication port and the data acquisition card, NI PCI- 6221, to control the frequency hybrid motor, temperature control box, electronic loads and other intelligent devices, and to simulate a variety of automotive alternator working conditions and real-time monitoring to monitor the status of generators. Using this system, two separate automobile alternators can be tested in terms of high-speed vehicle impact and high temperature durability test and electrical performance test and other tests at the same time. As a result, the generator speed measurement error is within 1%, the control error is within 2%, voltage and current measurement errors were within 0.5% and 0.4%, which meets the requirements.

The Design of Monitoring System in Large Hydraulic Press Aiming at the Precise Closed-Loop Control

2014 ◽  
Vol 989-994 ◽  
pp. 3062-3069
Author(s):  
Heng Du ◽  
Bin Huang ◽  
Lin Wang ◽  
Shu Mei Chen
Keyword(s):  
Data Acquisition ◽  
Monitoring System ◽  
High Speed ◽  
Closed Loop ◽  
Hydraulic Press ◽  
Signal Acquisition ◽  
Closed Loop Control ◽  
Repeated Testing ◽  
Loop Control ◽  
The Status

In the research and development of the precise closed-loop control system in large hydraulic press, the touch screen and PLC are frequently applied to design, debug and test for the system. Though a better closed-loop control characteristic can be acquired after repeated testing by this way, the comprehensive state data of hydraulic press are unable to get, which leads to a long research cycle and also restricts the maintenance and upgrade with the equipment in the later period. In order to obtain the whole state information of hydraulic press easily and effectively, a monitor system of precise closed-loop control in large hydraulic press is designed. Based on reasonable cooperation of sensors and high-speed data-acquisition card, high-speed and precise signal acquisition is realized. In addition, data-acquisition software program is designed base on LabVIEW, it can achieve the functions of collecting, storing, displaying and analyzing data. Through the real measuring and analyzing on a certain large ceramic hydraulic press, the status of key parameters can be acquired effectively during the whole pressing process. So the monitoring system supplies the significant data basis to the precise closed-loop control, accelerates the design and development of high characteristic precise closed-loop control and also strongly supports to the maintenance and upgrade with the equipments in the later period.

Standing Phase Angle Reduction Based on a Wide Area Monitoring System Using Genetic Algorithm

2010 ◽  
Vol 11 (3) ◽  
Author(s):  
Saber Nourizadeh ◽  
Ali Mohammad Ranjbar ◽  
Mahmoud R. Pishvaie ◽  
Morteza Sadeghi
Keyword(s):  
Genetic Algorithm ◽  
Power System ◽  
Monitoring System ◽  
Phase Angle ◽  
High Speed ◽  
Test System ◽  
Wide Area ◽  
Wide Area Monitoring ◽  
Novel Approach ◽  
Area Monitoring

During power system restoration, it is necessary to check the phase angle between two buses before closing circuit breakers to connect a line between them. A novel approach for reducing large standing phase angle (SPA) based on Genetic Algorithm (GA) is presented in this paper. The proposed approach starts with a state estimation on Wide Area Monitoring System (WAMS) data measurements and considering power system operation and angular stability constraints, seeks an optimal control action scenario for reducing SPA. Since these constraints are evaluated based on WAMS data, the presented approach is considerably high speed and accurate. As an optimization problem, objective function of the proposed approach is to minimize variation from the current state of the power system. Simulation results on the IEEE 118 bus test system clearly show efficiency of the approach.

Design and Realization of a Certain Missile Servo Mechanism Test System

2012 ◽  
Vol 466-467 ◽  
pp. 1020-1024
Author(s):  
Dong Yu Zhang ◽  
Xu De Cheng ◽  
Bing Xu ◽  
Xue Dong Xue ◽  
Cheng Peng Jiang
Keyword(s):  
High Precision ◽  
Virtual Instrument ◽  
High Reliability ◽  
Test System ◽  
Automatic Test ◽  
Automatic Test System ◽  
Object A ◽  
Simple Operation ◽  
Servo Mechanism ◽  
Test Result

To improve the efficiency and precision of missile servo mechanism testing, as the research object, a certain missile servo mechanism was studied in this paper. Based on PC/104 bus and virtual instrument technique, a missile servo mechanism automatic test system was presented, and the design and development on hardware and software of the system was described in detail. The system, which is featured with its simple operation, high precision, high reliability, scalable and portable test software, has been proved to be feasible by the test result.

The Measurement and Analysis of Torsional Vibration for Rotating Machinery

2013 ◽  
Vol 365-366 ◽  
pp. 750-753
Author(s):  
Wei Hao Yao ◽  
Ke Gang Zhao
Keyword(s):  
Torsional Vibration ◽  
Virtual Instrument ◽  
High Speed ◽  
Test System ◽  
Rotating Machinery ◽  
Detection Scheme ◽  
Frequency Detection ◽  
Measurement And Analysis ◽  
High Speed Data ◽  
Instrument Technology

In this paper, the virtual instrument technology is used in torsional vibration study to create a set of torsional vibration natural frequency detection scheme for rotating machinery which is based on the characteristics of controllable one-way overrunning clutch. Also, a test system that is highly sampling frequency, good accuracy and fast data processing capability is developed. This system consists of high-precision dynamic torque sensor, microprocessor-based high-speed data relay module, IPC-based workbench. Finally, the measured results and the calculated results were compared, and it shows that the measured and the calculated results come very close.

Design of Test System for one Type of Airborne Photoelectric Equipment Based on PC104 Bus

2012 ◽  
Vol 241-244 ◽  
pp. 789-792
Author(s):  
Man Yi Hou ◽  
Hui Lin Fan ◽  
Xian Yong Jing
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
High Reliability ◽  
Test System ◽  
Power Bus ◽  
Photoelectric Equipment ◽  
Embedded Computer ◽  
Develop Software ◽  
Multithreading Technology ◽  
Signal Conditioning Circuit

A certain type of airborne photoelectric equipment is the key device for aiming and distance measuring. On the basis of analyzing the test requirement of the equipment, a test system is designed with PC104 embedded computer as the core control system. The function of the test system is suggested. Hardware programs of power, bus board, signal conditioning circuit and anti-jamming measure are designed. The multithreading technology and measures to prevent wrong data communicating are applied to develop software of the test system. The test system can be applied to test and debug the photoelectric equipment. The data handling technology used in the test equipment has advantages as high speed, high efficiency and high reliability.

Design of a Temporary Ground Wire Monitoring System and Reliability Research

2014 ◽  
Vol 599-601 ◽  
pp. 878-881
Author(s):  
Ying Hui Kong ◽  
Xiang Yuan Fu ◽  
Zhi Xiong Chen
Keyword(s):  
Monitoring System ◽  
High Reliability ◽  
Good Effect ◽  
Information Collection ◽  
Accurate Information ◽  
Network Congestion ◽  
The Status ◽  
Comprehensive Test ◽  
Communication Reliability ◽  
Job Site

Considering the current situation that ground wire is short of automated management, a temporary ground wire monitoring system is designed in this paper. In this system, RC 522 RFID reader chip is used to achieve reliable information collection of the state of ground wire and ZigBee chip CC2530 is used to achieve accurate information transmission. A comprehensive test is conducted. Against the interference, obstacles blocking and network congestion issues in a substation, proposes to increase routing nodes, adjust letter spacing, etc. to improve communication reliability. The system can achieve real-time monitoring of the status of temporary ground wire in a substation job site,with high reliability and good effect,which is worth being extended.

Study on Test of DMB-T Signal Based on Software Defined Radio Technique

2013 ◽  
Vol 303-306 ◽  
pp. 835-838
Author(s):  
Shan Shan Li ◽  
Jian Zhou
Keyword(s):  
Virtual Instrument ◽  
Software Defined Radio ◽  
Block Diagram ◽  
Test System ◽  
System Structure ◽  
Digital Television ◽  
Single Function ◽  
Broadcasting System ◽  
Speed Up ◽  
Hardware Circuit

With the release of the standard, digital television terrestrial broadcasting is being gradually extended in many places. In order to speed up the extension and the application, also to evaluate the existing digital television terrestrial broadcasting system, we need a easy-to-use signal analysis and measurement system. The traditional signal measurement method is through the special hardware circuit to realize, but that method is high cost, and the system structure is complex and single function. To improve the flexibility of the system , we realize the system based on virtual instrument technology. In hardware section, this thesis described the block diagram of the system and the introduction of the NI vector signal analyzer. In software part, this thesis described the overall test system based on LabVIEW and the realization of the system features multi-threading, each step of synchronization signals achieved. The image Fig. 3 and Fig. 4 show the result of this system test software system.

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