Papers by Keyword: Monitoring System

Abstract: This paper puts forward an on-line monitoring system of power transformer which could online collect multiple physical parameters of power transformer at the same time without using electricity sensor. In this case, the sensor will not affected by the strong electric field, magnetic field and electromagnetic wave. The system analysis the running state of power transformer according to physical parameters accurately, as current technology can only measure single physical parameters, it can solve this problem that the measurement results lack of association. Moreover, the system improves the reliability of power transformer operation and security of online measurement, ensuring the safe operation of power system.

Abstract: Intelligent greenhouse cultivation and management is one of the most important technologies for continuous production of agricultural products. This article deals with the development history, status, key technologies and trend of greenhouse intelligent monitoring system£¬ makes analysis on the existent problems and developing trend so as to provide reference for the growth of China's facility agriculture intellectualization£®

Abstract: To solve some problems about the substation bus voltage monitoring, a remote monitoring system based on MCU and GPRS module is designed in this paper. The system consists of data acquisition terminals, communication networks and monitoring PC. STC12C5608AD is used as the control core of the data collection terminal, which extends power modules, data acquisition modules, wireless transmission modules in order to realize the data acquisition, processing and transmission. GPRS is adopted in the communications network to realize the voltage information remote wireless transmission. Configuration software ForceControl6.0 is used in PC to realize remote monitoring. The system is tested in a lab environment, and running well.

Abstract: In order to monitor a wide distribution, quantity, long working hours for industrial electric equipment, this paper provides a solution based on Zigbee wireless sensor networks. The core CC2530 chip is the control center of the entire system, and holzer sensor is selection as a current sensor. Through the wireless network which is composed of terminal nodes, routing nodes and coordinator, the collected data is sent to PC terminal and displayed. The experimental results show that the wireless sensor network can effectively and reliably collect current harmonics of electric equipment and transfer to the PC terminal in time.

Abstract: This paper proposed a remote monitoring system based on Web Services .In the system, the data form different kinds of sensors and cameras are managed by the sub station program. The system provides services by using Web Services. The problems appeared in the test run of the system are analyzed. The solutions which solve the problem are proposed. The controlling system can meet the needs of the enterprises. The proposed system has good openness and expansibility.

Abstract: A basic problem in the design of monitoring system is how to improve the usability, this paper describes a methods based on the User-Centered Design and analyses user from task domains and cognitive psychology aspects. After deciding the interaction system’s task requirement and usability requirement, we develop the Fiber Bragg Grating Monitoring System in JAVA platform with JAXB and JDBC technology.

Abstract: The safety and reliability of large-scale visual vehicle monitoring system receives the user's attention. In this paper, the status of the development of vehicle monitoring system is analyzed, the necessity of developing scalable component-based vehicle monitoring system is discussed and a practical extensible system model based on component development is proposed. Through this article, it can demonstrate that the design meets to the performance requirements.

Abstract: The traditional temperature and humidity monitoring system of grain depot used to realize in wired network which needs to deploy a large number of cables. The maintainability and scalability is poor. We present a solution of monitoring temperature and humidity of grain depot based on wireless sensor network (WSN). The temperature and humidity data acquisition and control node is composed of digital temperature and humidity sensor and RF wireless chip and the main control chip. Based on the Zigbee technology, these nodes construct a WSN in Ad Hoc in order to collect, monitor and control the temperature and humidity in the monitoring area. The convergence node in the WSN will packed acquisition data from other nodes and then transmit them to a remote monitoring host through the GPRS wireless mobile network. By means of the statistical analysis of the real-time data collected, the monitoring host can alarm and feedback control the temperature and humidity of grain depot. The experimental results show that the system has strong scalability, low power consumption and high efficiency.

Abstract: The monitoring system of AMB (Active Magnetic Bearing) can display rotor displacement signals and real-time current signal of electromagnetic coils, monitoring the rotor running status of AMB. This article describes the monitoring system that is based on the AMB original hardware circuit and details of its hardware components and software modules function. Experiments show that: the function of each part of the electromagnetic bearing monitoring system uptime, and has good expansion; this system has been successfully applied in second flexible critical speed rotor magnetic bearing system.

Abstract: Automobile drum test bench is conducted test car's dynamic economy tests, special test equipment emissions performance evaluation and analysis of the simulated vehicle right road resistance is the key to drum test rig. This paper first describes the electrical simulation theory cars with resistance and inertia, and the establishment of automobile roads resistance electrical simulation mathematical model of the software platform drum bench and control system is analyzed and designed and conducted inertia simulation control mode the test results showed that inertia simulation control and reliable operation.