酒精心脉检测系统摘 要在经济快速发展的阶段，车辆的数量剧增，随之而来交通事故的发生也越来越多。设计一款检测酒精和心率的装置显得很重要，该设计由 STC89C52 单片机电路、MQ-3 型酒精传感器、独立按键电路、液晶电路、ADC0832 模数转换、红外反射传感器 ST188、蜂鸣器报警电路、放大电路、电源等组成。该设计通过传感器检测驾驶员的酒精浓度和心率，独立按键设定预定值，传送至单片机进行数据处理判断检测值是否超出预定值，超出的话警报器电路发出警报。当蜂鸣器发出警报时，说明该驾驶员属于饮酒驾驶。增加了交警对查酒驾的力度，提高了他们的工作效率，从而减少了交通事故发生的数目，保障了人们的生命财产安全。关键字：STC89C52 单片机，MQ-3 酒精传感器，红外反射传感器，交通事故。1AbstractIn the stage of rapid economic development, the number of vehicles has increased dramatically, followed by more and more traffic accidents. It is very important to design a device to detect alcohol and heart rate. The design consists of STC89C52 single chip circuit, MQ-3 alcohol sensor, independent key circuit, LCD circuit, ADC0832 A / D conversion, infrared reflection sensor ST188, buzzer alarm circuit, amplification circuit, power supply, etc. The design detects the driver's alcohol concentration and heart rate through the sensor, sets the preset value by the independent key, and transmits it to the single chip microcomputer for data processing to judge whether the detection value exceeds the preset value. If it exceeds the preset value, the alarm circuit will give an alarm. When the buzzer gives an alarm, it indicates that the driver belongs to drinking driving. It increases the strength of traffic police to check alcohol driving, improves their work efficiency, reduces the number of traffic accidents, and ensures people's life and property safety.Keywords: STC89C52 single chip microcomputer, MQ-3 alcohol sensor, infrared reflection sensor,...
