Acceleration induction automobile running record and warning device

The acceleration inducing automobile run recording and warning device has senor chip, microprocessor and memory set inside mobile terminal. Gravitational force is used as one input vector in determining the acceleration and speed of automobile in both X and Y directions, and the microprocessor decoded data are transmitted to the memory. When the automobile brakes or turns abruptly in acceleration above the preset value, the automobile is judged in accident. Various data in the time interval from 55 sec before the accident to 5 sec after the accident are recorded automatically in the memory. The device may be connected to the central control system via radio signal, and when the total acceleration of the automobile exceeds the pre-warning value, the intelligent mobile terminal will send alarm to the central control system.