Method and system for calibrating sensors of weighing shelf

A calibration method and sensor technology, applied in the direction of weighing equipment testing/calibration, instruments, weighing, etc., can solve problems such as the inability to apply sensor calibration, and achieve the effect of ensuring accuracy and improving accuracy
CN112985570APending Publication Date: 2021-06-18ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
Publication Date
2021-06-18

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Abstract

According to a method and a system for calibrating the sensors of a weighing shelf provided by the invention, the output values of the plurality of sensors connected with a tray are obtained by moving a weight with the calibrated weight at the appointed position on the tray of the weighing shelf, and a calculation model between the weight of the weight and the coordinates of the weight and the output values of the sensors is established through a moment balance principle, calibration parameters of the sensors are calculated through a preset calculation method, and a mapping relation between the output value and the actual bearing value of each sensor and the position of each sensor are acquired. According to the method and the system, accurate calibration is carried out on the weighing shelf with the plurality of sensors connected in parallel, so that system errors caused by installation angles, aging of the sensors and the like in the weighing shelf are reduced, and the commodity identification accuracy is ensured.
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Description

technical field

[0001] This specification relates to the field of unmanned retail, in particular to a calibration method and system for a sensor of a weighing shelf. Background technique

[0002] Unmanned retail stores, as a new type of offline retail business with low operating costs and convenient users, are developing rapidly, resulting in commercial forms such as unmanned retail stores and smart containers. To realize unmanned retail, it is necessary to solve the key technology of commodity identification taken by users. Currently, the technologies used to realize the recognition of goods taken by users include commodity and human motion recognition based on image recognition, and commodity recognition technology based on the weight perception of weighing sensors. Among them, the commodity identification technology based on the weighing sensor has the advantages of low cost, high real-time performance and high reliability, and is an important technology in the field of ...

Claims

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