A malathion detection card two-dimensional code traceability batch parameter automatic matching method

By printing encrypted traceability QR codes on malathion test cards, the aging level can be sensed and corrected in real time, solving the problem of quantitative distortion of test cards under non-ideal storage environments and achieving accuracy and reliability of test results.

CN122366490APending Publication Date: 2026-07-10SUZHOU KUAIJIEKANG BIOTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU KUAIJIEKANG BIOTECH CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing rapid test cards for malathion suffer from quantitative distortion due to aging under non-ideal storage conditions. Current technologies lack the ability to quantify the aging degree of the test card in situ and in real time without increasing the cost of additional chemical indicators or electronic tags, thus compromising the accuracy of test results.

Method used

By printing an encrypted traceability QR code containing dual-matrix aging characteristics on the test card, the aging degree of the test card can be sensed by scanning it with a mobile phone or portable tester, and the standard curve parameters can be automatically corrected to achieve dynamic and accurate quantification.

Benefits of technology

It effectively solves the quantitative error caused by the degradation of traditional test cards during storage, and improves the accuracy and reliability of on-site food safety testing.

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Abstract

This invention relates to the field of food safety testing technology and discloses an automatic matching method for batch parameters of malathion test cards with QR code traceability. The method includes collecting the dual-matrix Lab color space values ​​of the QR code label paper and NC film in the test card, constructing an aging decay function relationship table and an initial coupling correlation matrix, and encoding an encrypted QR code. During testing, a single frame of original image is acquired to extract real-time chromaticity feature vectors of the dual-matrix region, and the aging feature modulus is calculated by combining it with the initial coupling correlation matrix. Based on the aging feature modulus, the aging decay function relationship table is queried to dynamically correct the initial standard curve parameters and generate a real-time standard curve, thereby outputting the malathion concentration. This invention constructs an intrinsic aging indication mechanism through dual-matrix chromaticity difference, achieving adaptive reconstruction of the standard curve according to the aging state of the test card, ensuring detection accuracy throughout the entire lifecycle.
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Citation Information

Patent Citations

  • Colorimetric / SERS (Surface Enhanced Raman Scattering) dual-mode malathion batch detection method and application thereof

    CN116067936A

  • Product information traceability system based on two-dimensional code

    CN118886922A