The Design of Vehicle Hazard Warning Device

Abstract

ABSTRACTwith the accident of Asphyxiation and death in the children's car in recent years, the demand for this kind of dangerous alarm devices. The vehicle dangerous alarm device has both temperature and oxygen concentration monitoring and alarm function .As the core of the main measurement and control system of the vehicle dangerous alarm device, STC89C52 is used to collect, process and display the data of the data .The function of alarm and other functions, The temperature monitoring module uses DS18B20 digital temperature sensor, output signal is all digital; The Oxygen concentration monitoring module uses the potentiometer to replace, through the ADC0809 conversion, carry on the LCD digital display. In this paper, design based on single chip microcomputer on-board danger alarm device structure is simple, the design is unique the research has some significance.