Wireless Reversing Radar Control System Research

With the improvement of living standards,the automobile products began to spread to people's life,but in the automotive industry can be rapid development,the annual production volume,sales continued to increase at the same time,there are techniques are not standardized,not up to standard defects such as novice drivers are also more and more.As a series of problems such as lack of knowledge of driving,obstacles to vision,driving technology,and so on,this is still a difficult problem to break through.The car reversing radar system in reversing or forward,judge around obstacles,and maintain a safe distance,also to remind drivers to pay attention to,the alarm sound so as to promote driving safety driving.Based on the CAN bus,the control system of wireless reversing radar is designed.The system,a total of five functional modules: ultrasonic ranging,ranging controller,the main controller,display,buzzer alarm.Among them,the ultrasonic range finder through the RS232 serial port,the data will be transferred with the ultrasonic range finder,in addition,with the help of CAN bus,the road and obstacles in the direction and distance to the system.The system will get the information value,through the fuzzy control algorithm,the car's safe driving distance and steering information,turn over the monitor,and start the system alarm.The system mainly uses 6 measurement channels,the width of the car to 170 cm calculation,and in the rear of the vehicle bumper 10 cm,respectively,the assembly of the two sensors,the rear bumper of the car,then put on four.The average distance is 50 cm.Vehicles on both sides of the sensor,the distance is maintained at 10 cm or so.In accordance with this set pattern,the CAN communication network of the vehicle system is composed of 1 main controllers and 6 distance controller nodes.A total of 7 nodes.In addition,they are connected to the CAN,and the main controller to perform the main work,such as the other 6 nodes for scanning,analysis,and access to specific information.In the prior design of the test platform,the car reversing radar system to implement the simulation test,the performance of the CAN bus,the network function is smooth,agile.So that the control effect of reversing,but also more safe,simple andefficient.As a result,it is possible to driver provides driving safety tips,the system alarm,information,display function and taste,the obstacles,distance between 0.6 to0.9 meters,then drives the alarm will to the spacing of 2.5hz issued a reminder;when the obstacles of the roads,distance between 0.3 to 0.6 meters.Then,the alarm will to5 Hz interval of time,issued a reminder alarm;and the distance of obstacles less than0.3 meters,then,when the alarm will to 10 Hz spacing an audible alarm.