Design And Implementation Of Bus Intelligent Terminal Based On STM32

The vehicle-mounted intelligent terminal is a new vehicle-mounted terminal device that is produced through the extensive application of integrated electronic technology,wireless communication technology,GPS global positioning technology in the field of automotive management applications and traffic management.The vehicle-mounted intelligent terminal is the main component of the vehicle service.The various parts of the vehicle-mounted intelligent terminal perform data communication with each other,and finally achieve real-time monitoring of vehicle positioning and vehicle status.The main objective of this is to use STM32F407 of ST-Microelectronics as the main control processor,external GSP positioning module(GT-U7),and related external equipment such as GPRS wireless transmission module(GA6)to achieve vehicle positioning and vehicle data.Real-time transmission.The on-chip peripheral CAN interface of the STM32F407 Micro-controller receives the data on the car's internal CAN bus,and the car's internal CAN data is parsed through the CAN bus car protocol,so that the real-time status of various parts of the car can be known and a set of custom data protocols is finally defined.The visual form uses GPRS wireless communication technology to transmit the real-time status of the car,so that the user can know the status of the vehicle in real time.The user can query the vehicle's data at every moment of the car,including the car's speed,the car's gear,the horn,and the ignition status.Braking conditions,vehicle door locks,vehicle mileage,and more.Vehicle-related positioning information can achieve the effect of tracking the car and can play a role in theft loss.The intelligent terminal of the vehicle is mainly based on the STM32F407 development board in the laboratory,adopts keil5.14 as the main software development platform,and simultaneously uses the C language as the system development language.Through the function code compilation and software function testing of each module,the subject is feasible.testing method.The system implements GPS positioning module positioning data acquisition and LCD display vehicle status data,FLASH data cache and reissue mechanism.