Design And Implementation For Crash Recovery Of Vehicles By Using Arm 7

Security in travel is primary concern for everyone. This Project describes a design of effective alarm system that can monitor an automotive / vehicle / car condition in traveling. This project is designed to inform about an accident that is occurred to a vehicle to the family members of the traveling persons. This project uses a piezo-electric sensor which can detect the abrupt vibration when an accident is occurred. This sends a signal to microcontroller.

This Project presents an automatic vehicle accident detection system using GPS and GSM modems. The system can be interconnected with the car alarm system and alert the owner on his mobile phone. This detection and messaging system is composed of a GPS receiver, Microcontroller and a GSM Modem. GPS Receiver gets the location information from satellites in the form of latitude and longitude.

The LPC2148 controller processes this information and this processed information is sent to the user/owner using GSM modem A GSM modem is interfaced to the MCU. The GSM modem sends an SMS to the predefined mobile number and informs about this accident. This enable it to monitor the accident situations and it can immediately alerts the police/ambulance service with the location of accident.

The project is built around the ARM7 LPC2148 controller. This micro controller provides all the functionality of the SMS alert system. It also takes care of filtering of the signals at the inputs.  The uniqueness of this project is, not only alerting the neighbors by its siren, but also it sends a caution SMS to four mobile numbers. This numbers can be changed at any time by using the coding.  These numbers are stored in EEPROM. When the accident occurs, the vibration sensor is activated then automatically vehicle door opens.