Conveying belt tear detecting method based on FPGA
A detection method and technology for conveyor belts, which are applied to conveyors, conveyor objects, conveyor control devices, etc., can solve problems such as affecting the normal use of conveyor belts, unsatisfactory effects, and tedious installation. The effect of small size and low price of hardware
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[0025] Such as figure 1 As shown, the process of the FPGA-based conveyor belt tear detection method is:
[0026] (1) Install OV5640 above the conveyor belt to make long-term uninterrupted video on the conveyor belt, and then pass it to the image acquisition module through the IIC bus;
[0027] (2) Through Verilog HDL hardware description language programming, the logic circuit of FPGA realizes real-time preprocessing of the received image data;
[0028] (2a) Take pictures frame by frame from the recorded video of the conveyor belt;
[0029] (2b) For the acquired picture, use f(i,j)=0.2989R(i,j)+0.5870G(i,j)+0.1140B(i,j) for grayscale transformation, where f(i,j) ) Represents the gray value, R(i,j) represents the red component value, G(i,j) represents the green component value, and B(i,j) represents the blue component value;
[0030] (2c) Use g(i,j)=median{f(ik,jl)},(k,l)∈H to perform median filtering on the gray-scale transformed picture, where (i,j) represents the original picture T...
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