针对目前因酒驾造成的交通事故频发问题,提出了一种基于物联网的车载酒驾自动检测系统。该系统以物联网技术为依托,主要由MCF52255单片机、MQ-3传感器、GPRS模块组成,实现了智能酒驾的准确辨识。节省了人力和物力。这样能够大大的降低交通事故的发生率,减少人员与财产损失。该系统经过测试表明能有效预防酒后驾车,具有很好的市场应用前景。 Aiming at the frequent traffic accidents caused by drunk driving, an automatic detection system of drunk driving based on internet of things is proposed. The system is based on the Internet of Things technology, which is mainly composed of MCF52255 single-chip microcomputer, MQ-3 sensor and GPRS module, which realizes the accurate identification of intelligent drunk driving. Save manpower and material resources. This can greatly reduce the incidence of traffic accidents and reduce personnel and property losses. The system has been tested to show that it can effectively prevent drunk driving and has good market prospects.