Strain weighing device, unmanned vending cabinet and using method thereof

Abstract

The invention discloses a strain weighing device, which comprises a cantilever beam. A resistance strain gauge set for strain measurement is arranged on the cantilever beam. A shelf fixation base is arranged at the force application point of the cantilever beam; and a shelf is arranged on the shelf fixation base. The resistance strain gauges are communicated with an external signal processing circuit; the external signal processing circuit measures resistance value changes of the resistance strain gauge set to obtain weight changes of cargoes on the shelf by conversion. In addition, the invention also discloses an unmanned vending cabinet and a using method thereof. The strain weighing device is arranged in the unmanned vending cabinet; the external signal processing circuit communicated to the strain weighing device transmits a signal to a background control system; the background control system identifies the types and numbers of cargoes taken away by consumers according to the statistic cargo weight change data during the cargo selection process; and prices are calculated automatically and the sums are deducted from the accounts of the consumers. On the basis of the strain measurement method, the unmanned vending cabinet becomes intelligent and the mode of the unmanned vending becomes mature and perfect, so that the shopping efficiency and experience are improved.

Description

technical field [0001] The invention relates to the field of unmanned vending, in particular to a strain weighing device, an unmanned vending cabinet based on the strain weighing device and a use method. Background technique [0002] Unmanned vending cabinets are an inevitable product of the development of the retail industry and have been promoted more and more. However, none of the unmanned vending cabinets on the market currently have the function of automatically detecting goods. The system cannot automatically identify what goods consumers have taken. How many goods have been purchased, so it cannot be automatically settled, and consumers need to manually settle. This shopping process affects the pleasure of the consumption experience and affects the shopping efficiency. Moreover, for the elderly who do not know much about smart devices, there are operational obstacles, which is equivalent to a disguised form. The consumption of some consumer groups is rejected, and the...

AI Technical Summary

Problems solved by technology

[0002] Unmanned vending cabinets are an inevitable product of the development of the retail industry and have been promoted more and more. However, none of the unmanned vending cabinets on the market currently have the function of automatically detecting goods, and the system cannot automatically identify what goods consumers have taken. How many goods have been purchased, so it cannot be set...

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