Farm product market high-precision sensor anti-cheating electronic scale

By using a closed box and hollow cylinder design, combined with a locking mechanism and a powder spraying physical protection mechanism, the problem of easy tampering with the initial information of the electronic scale chip is solved, achieving high-efficiency weighing accuracy and safety assurance.

CN224455958UActive Publication Date: 2026-07-03ZHEJIANG WONHENG IND &TRADE CO LTD
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Patent Information

Application Number
CN202521844169.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-07-03
Estimated Expiration
2035-08-28

AI Technical Summary

Technical Problem

The initial information protection of the chip in existing electronic scales is insufficient, making them susceptible to illegal tampering and resulting in inaccurate weighing. They lack an effective dual protection mechanism of physical and software.

Method used

The system employs a closed box and hollow cylinder design. The closed box is fixed inside the electronic scale by a hidden locking component. When the closed box is forcibly opened, the interfering powder inside the hollow cylinder is sprayed onto the chip, disrupting the chip's circuit conductivity. Combined with an audible and visual alarm and a mechanical triggering unit, it achieves dual protection through physical and software means.

Benefits of technology

This approach physically prevents unauthorized tampering, ensures weighing accuracy, reduces weighing inaccuracies caused by information tampering, enhances the security of initial chip information, and lowers the overall cost and probability of device failure.

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Abstract

The utility model relates to a farmer's market high-precision sensor anti-cheating electronic scale in the field of electronic scales, which comprises an electronic scale body and a chip body arranged inside the electronic scale body, the inside of the electronic scale body is detachably connected with a sealing box used for sealing the chip body through a locking part, and the locking part is located in the sealing box; according to the electronic scale, the sealing box is fixed in the electronic scale body through the hidden locking part, the chip can be completely sealed, prying and dismounting can be physically blocked, external contact is avoided, initial information of the chip is protected, and it is guaranteed that daily weighing information of the electronic scale is complete; the hollow cylinder provided with the nozzle can instantly spray insulating ceramic powder when the closed box is forcibly opened, and compared with traditional software encryption, the physical destruction design can directly destroy a chip circuit, so that the chip circuit cannot read and write initial information, the powder is difficult to clean, the chip is influenced for a long time, illegal tampering is prevented from the source, the information safety of the chip is improved, and the problem of inaccurate weighing is solved.
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