In the process of food materials transportation

there are many problems such as large errors

waste of resources and low logistics efficiency of traditional way of weighing. To solve these problems

an instantaneous flow measurement system based on the machine vision for belt conveyor is designed. The instantaneous flow is calculated by extracting the line laser profile of the material surface and using the algorithm of trapezoidal surface integral. Experimental results show that the minimum error of measurement system can be as low as 1. 45 % and the overall measurement error is within 5 %

and the system has high precision and can meet the demand for online flow measurement of materials for belt conveyor.