Electronic weigher

Abstract

The invention relates to an electronic weigher which comprises a weight sensor used for obtaining a weight analog signal of a weighed object, an A / D conversion circuit used for converting the analog signal into a digital signal, a processor used for calculating the weight of the weighed object according to the digital signal, an identity recognition module that is connected with the processor as well as can obtain and send user identity information of the weighing operator, a weighed object information input module used for inputting parameter value information of the weighed object, and a wireless communication module used for receiving the information sent by the processor and sending the information into a terminal server, wherein the weight sensor, the A / D conversion circuit, the processor, the identity recognition module, the weighed object information input module and the wireless communication module are connected with each other; the processor is also used for sending the user identity information, the weight value of the weighed object and the parameter value information thereof into the wireless communication module after receiving the user identity information sent by the identity recognition module. The identity recognition module of the electronic weigher can be used for distinguishing the identity of operators, and the electronic weigher can print a two-dimensional bar code label of the products in the course of dealing, thus providing hardware support for setting up an agricultural product traceability system.

Description

technical field [0001] The invention relates to an electronic scale, in particular to an electronic scale used in the field of agricultural product circulation. Background technique [0002] Existing electronic scales include a mechanical part and a circuit part. When the measured object is weighed, the relevant parts of the mechanical part will change, and the change information is collected through the sensor, and the information is transmitted to the circuit part for processing, and then obtained The weight of the object to be measured, because electronic scales are often used in transactions, therefore, the existing electronic scales also have a calculation function, but the current electronic scales are used independently, and cannot track and trace the weighing process. At present, the current situation of agricultural product circulation is complicated, the market system and trading methods are backward, fake and shoddy goods are rampant, "you sell with conscience, I ...

AI Technical Summary

Problems solved by technology

The existing methods of controlling the circulation of agricultural products adopt the method of "requesting certificates", "requiring tickets", "double checking", "double inspection" and "soft monitoring" of establishing purchase and sales ledgers to establish a method for tracking the quality of agricultural product circulation. It is difficult to operate, time-consuming and labor-intensive, and there are huge difficulties. It is difficult to form a real and effective method for tracking the circulation of agricultural products.

[0003] In order to uniformly monitor the transaction of goods, someone installed a communication port on the electronic scale, so that the electronic scale can be connected to a computer. Since each electronic scale needs to be connected to a computer, the cost of quality tracking and traceability is greatly increased.

[0004] On the other hand, the ordinary electronic scales that are common in the wholesale market at this stage only have the function of weighing, and cannot carry out business product liability identification. Records cannot be stored, and two-dimensional barcode labels cannot be printed. Electronic scales are not directly related to the safe circulation and traceability of agricultural products.

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