Calibration system and calibration method of a weighing device

Abstract

The invention discloses a weighing device calibration system, which is realized based on an Android platform. The system comprises a weighing device for acquiring and sending weight information to the Android platform and receiving an action command issued by the Android platform. The weighing device comprises a control module, a weighing sensor, a storage module and a power supply module, wherein the control module is respectively connected with the weighing sensor, the storage module and the power supply module. The Android platform which realizes communication connection with the weighing device via a serial port is used for receiving a data packet sent by the weighing device, presetting data and outputting the action command to the weighing device. The invention also discloses a weighing device calibration method based on the Android platform. The calibration system of the invention is simple and easy to operate, the overall calibration or correction process can be conveniently and quickly completed, calibration can be quickly completed without a special person, and the problems of a complicated existing calibration process and hard operation can be solved.

Description

technical field [0001] The invention relates to the field of calibration of weighing devices, in particular to a calibration system and a calibration method for realizing the calibration of weighing devices based on an Android platform. Background technique [0002] Weighing technology has been valued by people since ancient times. As a means of measurement, it is widely used in various fields such as industry and agriculture, scientific research, transportation, and domestic and foreign trade, and is closely connected with people's lives. The calibration process required for each weighing device is a process in which the output value displayed by the instrument and the corresponding weight value correspond to the weighing body. When the calibration of the existing weighing device is based on the quality of the national standard value (standard weight), the calibration process can be completed when the output digital code is consistent with the program calibration code compi...

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing weighing devices on the market can only perform simple weighing functions, which can be realized with an ordinary single-chip microcomputer.

Moreover, ordinary weighing devices do not have complex functions such as networking and credit card consumption. Therefore, the technical threshold of traditional weighing devices is relatively low. Ordinary weighing devices can only use digital tubes to display simple weight digital information, and more digital tubes or digital tubes are used. Combining the key unit for calibration is not only cumbersome to operate but also easy to forget the calibration steps, which not only wastes human resources but also reduces calibration efficiency

Moreover, during the long-term use of the weighing device, due to the deformation of the weighing platform structure, the aging of the load cell, the drift of the electronic circuit parameters and other reasons, the error of the weighing device will increase, which will lead to a decrease in the accuracy of the measurement or even It cannot be used normally, so it is necessary to calibrate or calibrate the weighing device on a regular basis or based on experience, but to calibrate or calibrate the weighing device on a regular basis or based on experience, either the calibration or calibration time is missed and the weighing accuracy is affected, or there is no need for calibration or Calibration or calibration while still in use during calibration reduces the efficiency of weighing operations

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