Abstract:

A car incident help system based on embeded system is designed to make the injuries get timely rescue after a car accident. MC9S12XS128 is used
as the controller chip in this system and three-axis acceleration sensor MPU6050 and GPS(Global Positioning System) is utilized to determine attitude information and location information of the vehicle. The conditon data is transferred to call center and families by GSM(Global System for Mobile Communications) module. The receiving end confirms accident and conduct rescue rapidly. The test results show stability and rapidity of the system.

Key words: MC9S12XS128 microcontroller, car incident help, three-axis acceleration sensor, global system for mobile communications(GSM) module, global positioning system(GPS)