利用激光脉冲飞行时问测量货车车厢体积

Measure Truck Carriage Volume with Laser Pulse Time-of Flight

介绍了利用激光脉冲飞行时间测距技术测量货车车厢体积的技术方案。通过该方法，可以准确地把2～6轴货车的车厢体积从货车体积中分离出来并计算得到。通过所采用的三阶高度矩算法——此算法来源于数字图像处理边缘检测中的三阶灰度矩，对于各种车轴的货车，都可以精确地去除车头和车底货架并计算出车厢体积，而且针对台阶状的6轴车，台阶点的位置和车厢体积也能准确地获得。此外，所介绍的货车截面数据翻摺拼合技术激光扫描测距仪的数量可以减少到2台。该测试方式已应用到货车厢体积测量的实际工程中，通过大量实际货车数据验证，它能很好地计算出货车厢的体积。

Truck carriage volume is measured with laser pulse time-of-flight range finding. By this scheme, the carriage part can be correctly segmented from the whole truck with 2~6 axles and calculated. With the third height moment, which is based on the gray moment for edge detection algorithm in digital image processing, the head and underframe of trucks with all kinds of axles are divided and computed for the volume of the carriage. Especially for 6- axle truck with the bench-shape, the point of bench turn and volume of the carriage are accurately calculated. Besides, using the technique of rolling-over and merging of the cross section data of truck body, the number of laser scanner is downsized to 2. The above techniques are already utilized in the project for carriage volume measurement. With a lot of results proved, carriage volume of trucks can be rightly calculated.