Research and Design of Parking Detector Based on NB-IoT and Geomagnetism

In view of the difficulty of parking, it is urgent to build an intelligent parking system. In this paper, a wireless parking detector based on geomagnetic detection and NB-IoT technology is proposed. The parking detector consists of three parts: the STM32 microcontroller, the geomagnetic sensor and the NB wireless module. Geomagnetic sensor collects the intensity of the magnetic field around, and then the magnetic field intensity is sent to the microcontroller. The microcontroller determines whether the parking space is occupied by the algorithm, and then transfers the occupancy of the parking space to the background management system in real time through NB.