混凝土布料机布料厚度测量系统

Measuring system of concrete thickness distribution made by concrete distributor

针对混凝土布料机布料厚度测量中超声波法存在测量盲区、激光测距法只能单点间断测量等问题,提出一种基于双目视觉的混凝土布料机布料厚度测量方法。利用双目视觉,通过基于区域和ORB特征相结合的立体匹配算法实现了对布料后预制混凝土构件任意一点混凝土厚度的大范围、连续、高精度测量。实验结果表明,采用该系统进行混凝土布料机布料厚度测量绝对误差不超过0.83 mm,完全满足测量要求。

As the ultrasonic measuring method has measurement blind area and the laser ranging method can only make single-point discontinuity measurement for concrete distribution thickness made by concrete distributor,a new distribution thickness measuring method based on binocular vision is proposed in this paper.By binocular vision and stereo matching algorithm based on region and ORB features,the continuous,wide-range and high-precision measurement of concrete thickness is realized at any position of precast concrete units.The experimental results show that the absolute error of the system for distribution thickness measurement is less than 0.83 mm,which fully meets the measurement requirements.