一种基于红外被动探测的车辆制动方法研究

Research on Vehicle Braking Method Based on Infrared Passive Detection

为了进一步提高车辆防撞装置的可靠性、有效性,提出一种新的设计方法.该设计采用红外被动探测技术检测车辆前方障碍物,并将检测到的信号输入单片机,单片机通过判断接收红外辐射信号的变化,利用定时功能按时间顺序依次触发光报警、语音报警以及启动刹车.红外被动探测器的使用改变了现有车辆防撞装置的设计思路,省去了发射部分,简化了设计;依时间先后触发报警信号避免了测距,提高了信号处理的速度,一定程度上改善了车辆防撞装置的性能.仿真结果表明,该方法具有较好的实用性.

In this paper,a new design method is presented for proving the reliability and effectiveness of the vehicle collision avoidance device,where an infrared passive detection technique is employed to detect obstacles in front of vehicles,and then the detected signals are sent to the SCM,which identifies and receives the change of infrared radiation signals,and uses the timing function to trigger the light-alarm and sound alarm,and start breaking in sequence.The use of infrared passive detector changes the design ideas of existing vehicle collision avoidance device,where the transmitting part is not in use,the design simplified,the ranging not needed by triggering the alarm signals in time order,thus boosting the signal processing speed and improving the performance of vehicle collision avoidance to some extent.Simulation results indicate that the proposed scheme has a better practicability.