Design Of Remote Alarm System For Vehicle Distress Based On

In recent years, along with the national income is constantly increasing, the car has entered the ordinary family. The car travel to bring convenient also brought trouble to the people. Traffic accident caused irreparable damage to the occupants of the life safety, of which a large part of the traffic accident because the police did not timely missed the golden time for rescue. When the accident happened, occupants may lose consciousness can not automatically alarm and rescue, and alarm people because of the psychological anxiety or fear, not able to clearly say that delayed rescue time accident. At present our country traditional driving computer generally used for anti-theft, does not take into account the communication problem of the vehicle and the outside at the time of the accident, therefore not able to provide adequate security for the occupants. Based on the above factors, a vehicle distress remote alarm system design, used to help rescue departments rushed to the site of the accident rescue in a timely manner.This paper based on the study of the traditional driving computer, combining with the current development of SCM, presents the design and Realization of the system of vehicle distress remote alarm based on STM32. The main feature of this system is not only able to provide vehicle location and status information and can automatically send a message in a car accident, and with the traditional anti-theft system combine to make the owners to understand their own car. The working process of this system: GPS module, real-time determination of longitude and latitude where the car, each sensor monitoring vehicle state, when the acceleration sensor and vibration sensor detects the vehicle in normal driving(non violent change of the vibration of the vehicle body acceleration exception)will be controlled by the main controller module sent out distress signals, to help rescue departments rushed to the site of the accident rescue in time, in order to raise the survival factor in person. When the security state when the car in, the human body induction module and a vibration sensor to monitor the state of the automobile, if someone illegally moved or into the vehicle, the main controller can control the SMS sending module prompt message to the designated mobile phone number.The whole control system uses STM32F103ZET6 as the main controller, sensor selection ND-1 vibration sensor, ADXL345 sensor, a pyroelectric infrared sensor, DS18B20 temperature sensor, display module using TFT, SMS module using SIM900 A, designed a automatic distress alarm and anti-theft automatic tracking location of the vehicle, and draw each module circuit diagram using Protel99 SE software.The software design mainly introduces the MDK compiler environment, μCGUI transplant, μC/OS-II embedded real-time operating system, main program design, data acquisition subprogram, GPS subprogram, SMS module subprogram. Using C language compilation of program modules.Firstly the system each module individually test analysis, selection of test system in each sensor module, liquid crystal display module and message module whether can achieve the expected effect. At the end of the intelligent driving computer system was summarized, gives the system debugging and test results.