Design of a new vehicle positioner to improve the positioning accuracy

Aiming at the disadvantages of traditional vehicle locator, such as GPS positioning system, GPRS communication mode and other related technologies, resulting in inaccurate positioning, long positioning time and high power consumption, a vehicle locator based on BDS / GPS dual-mode combined positioning system is proposed. The positioner adopts BDS / GPS integrated positioning mode, Nb IOT wireless communication mode, power management module lm2596, and COAP transmission mode for positioning data according to NMEA-0183 protocol, which can better ensure the positioning accuracy, positioning speed and stable operation of the locator. The experimental data show that the locator can accurately and quickly measure the positioning data, and the positioning accuracy is high, which can meet the requirements of practical application.