Electronic weigher

A technology of electronic scales and conversion circuits, applied in the field of electronic scales, can solve the problems of high cost of quality tracking and traceability, difficulty in forming agricultural product circulation tracking methods, time-consuming and labor-intensive problems, etc.

CN101629842AInactive Publication Date: 2010-01-20BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-01-20
Estimated Expiration
Not applicable · inactive patent

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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.
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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 ...

Examples

specific Embodiment approach

[0082] Set up an electronic scale in each agricultural product trading area of ​​the large wholesale market, set a fixed IP address for the electronic scale, and connect it to the HUB hub as an independent network terminal, and the HUB connected to the electronic scale can be connected to the HUB of the upper level , the higher-level HUB is connected to the server, and the server is used to store and record the transaction records of the electronic scale and verify the legitimacy of the user. The network layout is as follows: Figure 10 shown. Through this network structure, a server is connected to a large number of electronic scale terminals, and the items weighed during the agricultural product circulation process can be systematically managed, which greatly improves the management efficiency and saves equipment costs.

[0083] When the business entity enters the market, the RFID card is issued as the identification card for the transaction, and the electronic scale of the ...