Study Of The Alcohol Detection System With Multi-sensor Fusion In The Car Driving Recorder

Vehicle traveling data recorder is accompanied by a new generation of automotive safety technology. people's attention to the safety in the present and future will promote the development of automotive technology of safety certainly, and the stability of the performance of vehicle traveling data recorder will also be maked better. You know, the vehicle traveling data recorder not also provides the analytical basis of accident, but also examination irregularities car if the driver is an important monitoring tool, so the sense of responsibility for the driver will be enhance greatly.Hold back part of the accident that caused by the driver curb drink driving, fatigue driving, speeding and other bad driving behavior, while increasing the level of relevant management departments to monitor. Multi-sensor alcohol detection system mentioned in this article is designed for a vehicle traveling data recorder, and its reliability increased for using multi-sensor fusion technology. The CAN bus interface is not only used to communicate with vehicle traveling data recorder, but also enhances the vehicle traveling data recorder monitoring logging.The alcohol detection system with multi-sensor fusion in the car driving recorder is designed, using ARM Embedded Microcontroller and multiple sensors on the vehicle bus to detecting alcohol concentration. The principle of control by fuzzy reasoning algorithm for multi-sensor fusion, to judge the driver's alcohol level, thereby determining whether the driver driving violations and take appropriate measures to prevent incidents, and multi-sensor detection accuracy of the data were simulated by MATLAB simulation. The hardware design includes the core board and the floor board of the ARM embedded system. It can complete the tasks that alarm indication LED and the buzzer, liquid crystal display, multiple sensor signals, keyboard settings, drive control section, CAN bus communication nodes by three a plate composed of small networks tested.The research results on the board late application for further promotion of the system to lay the necessary foundation.