Design Of Beidou Navigation Information Terminal Based On Bluetooth

With the development of science and technology,satellite navigation and positioning technology is widely used in many fields.In people's lives,Beidou User Terminal,which applies satellite navigation and positioning technology,can not only provide navigation and positioning time service for users,but also realize short message communication within a certain coverage.In order to meet the development demands of Beidou industry application market and improve the accuracy and reliability of Beidou user terminal positioning data,the Beidou navigation information terminal,which integrates satellite navigation and positioning technology,short message and wireless Bluetooth communication technology,is designed with embedded design concept.The terminal can be used in military,meteorological,agriculture and other fields,it can effectively detect current geographical location information.The specific work is as follows:1)For the hardware design of Beidou navigation information terminal,it mainly uses the STM32 microprocessor as the core to complete the design of the peripheral control circuit such as the host part control module,navigation module,attitude module and so on,the circuit design of Bluetooth communication module is integrated to receive high frequency position information data.2)For the software design of Beidou navigation information terminal,it mainly adopts a structured design method.First,the initialization of the program is performed;Secondly,the data processing and forwarding program is designed to realize navigation and positioning functions;Then,the Bluetooth communication module program is designed to realize data transmission;and finally,the main program and the peripheral control program are designed to meet the overall requirements.3)The information terminal is tested and validated by combining hardware and software,using the upper computer software and mobile client to complete the application function test and performance test between each module.The test results show that the success rate of communication reaches more than 95%,and provides users with high-precision location information service,it ensures the reliability,efficiency and real-time of the overall performance of the information terminal.