Research And Development Of Automatic Control System For Vehicle Safety Warning Based On Wireless Sensor

Safety is an eternal topic.Especially in recent years,with the continuous progress of society,people's quality of life has been improved to a greater extent.With the rapid development of the automobile industry,per capita automobile ownership and usage is also constantly improving.With the increasing popularity of automobiles,the number and severity of traffic safety accidents have been increasing year by year.In 2014,nearly 34292 people died in traffic accidents in China.Not only that,but on the basis of this number,the number is still on the rise.In 2017,according to two ministries estimates,about 63000 people dead in traffic accidents in China,the world's second,and the relevant departments have for more than 1700 national nearly 10 years safety accident case statistics,the data of deaths between the frequency of accidents and obey "and" : the more the number of deaths of accident,the smaller the frequency;The lower the number of deaths,the higher the incidence of accidents.Safety accidents with low frequency and high death toll are related to technology and environment,while more than 80 percent of frequent accidents are more dependent on the safety operation of workers.Safety warning system is a kind of car safety driving assistance technology,which helps the car driver to drive safely.It can predict and give an alarm about the risk to the driver,remind the driver to pay attention to safety,and reduce the occurrence of safety accidents through technical means,which provides great help for the safety of China's vehicle driving.This paper aims at improving the safety of vehicles and taking safety warning as the research direction,aiming at helping drivers to make timely driving behaviors to avoid safety accidents and avoid traffic safety accidents.This article through to a safety accident cause analysis,determine the accident people,vehicles,environment influence factors of influence,through the mathematical model of the heat calculation of vehicle braking and lateral force etc,build a vehicle brake temperature rise,side,rollover model,to explore the safety car is apart from the early warning theory and the practical application of control technology,provide theory support for the system design.The hardware system design of this system by single chip microcomputer and the combination of sensor,single chip controller model for STC12C2052 AD,design of the road information acquisition unit system,vehicle information unit processing system and automatic control system for safe driving three execution system and its concrete realization process is using now a full range of sensor technology,real-time acquisition vehicle in the process of driving speed,brake itself parameters such as temperature,and the surrounding environment of obstacle distance,environmental factors such as rain and snow weather,through the controller parameters collected in the filter,The controller data is screened by taking the safety degree theoretical model algorithm and the safe distance warning algorithm as the program to calculate the potential danger of the vehicle driving.The potential danger of the driver is timely promoted through the buzzer and display module to help the driver make braking and other dangerous driving actions in a timely manner.Taking into account the polygon of human reaction time and reaction state,the safety automatic control unit will react automatically when the driver has no time to react,and adopt such methods as increasing the setting force and reducing the opening of throttle door to automatically slow down the car until it stops.Maximize the safety of driving.