电力领域施工中,检修设备需与带电体保持一定安全距离.目前安全距离的保障依赖于人员观察,由于松懈、视角受阻等原因,会出现误判,从而导致设备损坏及人员损伤等事故.针对此临近电位作业距离实时测量及保障需求,基于高精度超声波传感器,以STM32单片机为核心控制部件,设计了用于临近带电体作业距离测量系统.通过无线网络通信WiFi方式,解决装置处在临近带电状态下布线困难问题.此装置在南荆线1000 kV特高压变电站500 kV机组进行了现场测试,测试结果表明该装置在临近带电体施工时能告示带电体的带电状态,并准确测量与带电体的距离参数以及实现警示动作,有效地提高了维护工作人员和设备的安全性.%During maintenance and repair work in power system operation, it is vital to keep certain distance between operation personnel and electrical power equipment, which is relying mainly on human observations unfortunately. Due to human errors such as misjudgment or negligence, equipment damage and human casualties may occur consequently. To meet the requirement of real-time safe working distance measurement, a distance measuring system based on high precision ultrasonic sensor, and using STM32 MCU as the core processor is designed for live working. Through wireless WiFi communications, the challenges of wiring with the device near high voltage charged equipment is solved successfully. Meanwhile this device is tested in Jingmen 1000 kV EHV Substation. The results show that the safety distance measuring system has effective safety protection functionality and it can timely alert the operator. It is of great significance for the safety of personnel and equipment.
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