A method and device for detecting monofilament knots

Abstract

The invention relates to a method for detecting monofilament knots. A. passing the monofilament through a photoelectric sensor at a predetermined speed, and the receiving end of the photoelectric sensor detects the photoelectric signal when the monofilament passes; B. passing the detected photoelectric signal through a signal conditioning unit Convert it into an analog signal and send it to the single-chip microcomputer. The single-chip microcomputer converts the analog signal into a digital signal, suppresses the signal noise, and confirms the mutation difference. If there is no mutation difference, it is judged as normal wire walking; if there is a mutation difference, Then it is reconstructed; C, the reconstructed digital signal is compared with the preset comparison threshold, if it exceeds the comparison threshold, it is judged as a valid signal, otherwise it is an invalid signal; Among the signals, if there are at least valid signals of the second predetermined value, it is judged as a node. The method can conveniently, accurately and quickly obtain the number of nodule signals on a single silk of live pupae, providing a crucial parameter basis for silkworm seed selection.

Description

technical field [0001] The invention relates to a preferred detection method for silkworm eggs in the field of silkworm breeding, in particular to a method and device for detecting silk knuckles. Background technique [0002] In the process of silk production, the quality of silkworm eggs determines the quality of silkworm eggs, and the quality of silkworm eggs is compared with the quality of living pupa cocoons. The detection method of live pupa single silk knots is to dissect the live pupa single cocoon and wind it on a small blackboard, count and record the number of knots with human eyes. The test results are greatly affected by human factors, and the amount of data is large. It takes a lot of manpower and time. These all will have a great influence on the optimal breeding purpose of silkworm eggs. [0003] Therefore, the prior art has the disadvantages of low efficiency and heavy workload, and the inventors need to make creative improvements to this. Contents of the...

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Problems solved by technology

[0004] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a method and system for detecting silk knots, in order to solve the existing problems of low detection efficiency and heavy workload of silk knots, and to provide a method using Wavelet Analysis Method for Detecting Single Silk Knuckles in Live Pupa

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