基于ZigBee开关柜触点监测系统的设计

针对目前开关柜触点状态的监测较难的问题,本文设计了一种基于ZigBee的开关柜触点安全表带式无线监测系统。首先根据开关柜触头的工作环境以及工作参数监测要求,设计了整体的监测系统方案；随后根据监测方案,对系统的各个硬件部分进行分别设计电路并对设备选型；其次,完成了系统采集端的软件设计,实现了数据采集、无线发送功能,且可与协调器设备进行无线通信。最后,通过烟雾实验验证了设计的系统的通信及测量较为准确。本监测系统采用锂电池供电,表带式安装。设计的监测系统可以对开关柜触点的电流、电压、温度、烟雾等运行参数进行实时测量,并对过流过载、短路、火灾等安全故障进行预报。

Design of Contact Monitoring System Based on ZigBee Switch Cabinet

In view of the difficulty of monitoring the current state of switchgear contacts, this paper designed a ZigBee-based switchgear contact safety watchband wireless monitoring system. Firstly, based on the working environment of the switchgear contacts and the requirements for monitoring the working parameters, an overall monitoring system plan was designed. Then, according to the monitoring plan, each hardware part of the system was designed with circuits and equipment selection. Secondly, the software design of the system acquisition terminal was completed to realize the functions of data acquisition and wireless transmission, and wireless communication with the coordinator device. Finally, the smoke experiment verified that the communication and measurement of the designed system were accurate. The monitoring system is powered by lithium battery and installed with watchband. The designed monitoring system can measure the current, voltage, temperature, smoke and other operating parameters of switchgear contacts in real time, and predict safety faults such as overcurrent, overload, short circuit, and fire.