基于超声测距的障碍物形状识别

Obstacles' shape recognition based on ultrasonic ranging

针对超声测距对目标障碍物形状识别问题,利用三个超声波传感器组成探测器,设计了超声测距目标识别电路,通过测量超声波发射脉冲与反射波脉冲之间的时间间隔,可计算出障碍物到探测装置之间的距离;根据物体反射的超声波脉冲到达两个接收器的时间不同,可确定出障碍物表面的边角形状。同时,用Visual studio 2005软件进行了移动避障仿真。实验表明,这种利用三个超声波脉冲传感器探测障碍物边角形状的方法是有效的。

For the problem of target obstacle shape recognition, Using three ultrasonic sensors consist a detector, and designing ultrasonic distance measurement target recognition circuit to measure the interval time between ultrasonic transmit pulse and the reflection pulses, and which can calculate the distance between the detection device and the obstacles. In addition, the arrival time of ultrasonic pulses reflected by the object edges are different, which can determine the corner shapes of the obstacles surface. At the same time, mobile obstacle avoidance simulation is done by using Visual studio 2005 soft-ware. Experiments show that the use of three ultrasonic sensors to detect obstacles corner shapes is effective.