Design And Implementation Of Remote Monitoring System For The Highway Control Box

The highway control box is the key equipment of the highway monitoring system, which can assist the monitoring equipment to complete the highway monitoring task, and its working condition is directly related to the normal operation of the highway monitoring system. However,so far, the control box only man-made regular inspection, can not grasp the real-time control box state and the cost of human resources. In view of the current shortcomings, this thesis designed a monitoring system for the control box, for real-time detection of the control box voltage, current,temperature and humidity and other parameters, and real-time through the Ethernet communication to the monitoring center to prevent accidents. This thesis mainly includes four parts:1. Designed based on STM32F429 monitoring system, including electrical parameters measurement, temperature and humidity measurement modules, can achieve the voltage, current,temperature and humidity and other parameters of the measurement; design of the Ethernet-based communication system can achieve data far distance transmission. Using the DSM-300-based RFID identification system, can be achieved on-line monitoring of maintenance personnel in real time.2. In view of the problem of spectral leakage and phase error of the electrical parameters measurement method of fast Fourier transform, the improved phase difference correction method based on Hanning window is adopted to reduce the spectrum leakage,reduce the phase error and improve the measurement accuracy.3. The design of the remote monitoring system software, the use of modular design methods,including electrical parameter measurement, temperature and humidity measurement, Ethernet communication modules, can achieve the voltage, current, temperature, humidity and other parameters of the collection and data remote transmission.4. The measurement and comparison of the data on the voltage and current, temperature,humidity and other parameters, the measurement results show that this system can realize the real-time remote monitoring of the voltage, current, temperature control box on the highway,humidity and other parameters.