Design of Real Time Temperature on-line Monitoring System for Substation

Substation is an important part of grid system, is the key to the safe operation of power grid system, and the temperature change has a great influence to the safe and stable operation of substation. Therefore, we propose a real-time temperature on-line monitoring system for substation. In the hardware circuit design of the system, we select AT89552 microcontroller as a control chip, temperature sensor chip D518B20 to do temperature acquisition, and in the way of digital signal to transmit it to the microcontroller. R5232 serial port realizes the communication between the position machine and the lower machine. PC software is designed into synchronous temperature monitoring procedures and lower machine's temperature acquisition and serial communication program. The temperature is easy to implement synchronous monitoring platform, feature-rich, easy to operate, and can be well applied to temperature monitoring of substation.