Design and realization of a mobile seamless navigation and positioning system based on Bluetooth technology

To address the problem of low precision and easy divergence of the intelligent mobile phone sensors, a dual IMU we able mobile seamless navigation and positioning system based on Bluetooth technology is proposed. The whole system is divided into foot inertial data acquisition module (IMU), mobile phone self-contained sensor data acquisition module (IMU) and mobile phone positioning module for navigation information solution and display. Foot IMU takes STM32 microcontroller as the core, which is responsible for the timing acquisition of the inertial data, A/D conversion and Bluetooth transmission function. A seamless navigation and positioning application is also be programmed which can run on any android platform. Multiple experimental results show that the system can effectively complete the pedestrian navigation.