Research and Development of Mobile Unlocking System Based on IoT for Intelligent Substation

The effective management of five prevention intelligent keys is vital for the smooth operation of intelligent substations. Addressing the issue of lax key management in substations, this paper proposes a mobile unlocking management system for smart substations based on IoT technology. The system employs a station-side five prevention host, QR codes, and a mobile app to enable remote management and security control of intelligent keys. Leveraging smartphones as mobile carriers, the system grants authorization through RFID technology and QR code scanning. It records information such as the applicant, authorized personnel, time, and reason for access via a cloud server. Moreover, the system offers operation record tracking and traceability functions and can monitor key usage as well as unlocking information in real time. Test results from substations in Guangdong demonstrate that our system effectively controls key access, contributing to the enhanced digitization and intelligence of intelligent substations.