Vehicle anti-theft tracking circuit based on LoRa (long range) radio frequency technology

The invention relates to a vehicle anti-theft tracking circuit based on a LoRa (long range) radio frequency technology. A power supply part of the vehicle anti-theft tracking circuit is divided into a high voltage transformation circuit and a low voltage transformation circuit, and after a vibration switch detects vibration, the low voltage transformation circuit is switched on to provide low-voltage power supply for a system. STM8L151C8 microcontroller is taken as the core to perform information interaction with a GPS/beidou double-star positioning circuit through a UART serial port and communicates with an SX1278 radio frequency circuit through an SPI, status information of the system is sent to a LoRa base station, and long-distance transmission with low power consumption is realized. An alarm interface is used for accessing a vehicle control terminal, and the terminal initiatively uploads alarm data once a vehicle is stolen. The latest vehicle position and alarm lamp status data are sent with a LoRa wirel