Design of a Low-power System Based on Lora Wireless Communication for the Detection of Knife Gate Status with Convective Photoelectric Sensing

In the operation of substation, it is possible to use the convective photoelectric sensing technology to assist in identifying the status of the knife gate and thus improve the efficiency of the reversing operation in the substation, but convective photoelectric sensors may not work properly due to power depletion. To address this problem, this paper designs a low-power system for convective photoelectric sensing by selecting a photoelectric sensor, combining energy technologies and Internet technologies such as Lora wireless communication, solar power supply, control chip and host computer software, respectively, from hardware and software for low-power processing, using host computer software to monitor the real-time power of convective photoelectric sensor, and the power variation of the para-laser sensor under each condition is tested by comparison experiment. The system can improve the efficiency of the smooth operation of the pair of laser sensing system, ensure the stable continuation of the pair of laser sensors around the clock, and provide protection for the substation knife gate status identification work.