基于信息融合的汽车防酒驾系统设计

Design of anti drunk-driving system based on multi-sensor information fusion

针对单一传感器测试酒驾的局限性问题,设计了一种多传感器信息融合的汽车防酒驾系统。该系统先通过人体感应传感器HC-SR501判定驾驶座是否有人,当有人时由ME3A-C2H5OH电化学传感器和MQ-3半导体传感器采集酒精浓度,并利用模糊控制算法进行信息融合以实时获取驾驶人的饮酒浓度,最后判定是否达到国家饮酒驾驶或醉酒驾驶规定。当达到以上规定时进行锁车控制并通过GSM模块向车主亲友发送警告短信。测试表明,该系统具有安全可靠且扩展性强等特点。

Aiming at the limitation of the single sensor to test drunk driving,a anti drunk-driving system based on multi-sensor information fusion was designed.The system first determined whether the driver's seat was occupied by HC--SR501 body sensor module.When there was someone,alcohol concentration was collected by ME3A-C2H5OH electrochemical sensor and MQ-3 semiconductor sensor,and fused information from fuzzy control algorithms to obtain the driver’s drinking concentration in real time,finally,determined whether it is up to the national drinking driving or drunk driving regulations.When the above rules were met,the car was controlled and a warning message was sent to the relatives and friends of the owner through the GSM module.Tests showed that the system was safe,reliable,and highly scalable.