A multi-sensor electronic scale landing detection system and method

Abstract

The invention discloses a multi-sensor electronic scale landing detection system and method. The system comprises an electronic scale landing detection controller, a plurality of bidirectional multipath electronic switches and an upper computer, and a control switch or the upper computer triggers the electronic scale landing detection controller to control the bidirectional multipath electronic switches so as to realize switching between an electronic scale landing detection mode and a weighing mode. After a electronic scale landing detection mode is entered, a certain weight is loaded and unloaded at each sensor landing point of the electronic scale, whether each landing point falls to the ground and is true or not is judged according to the variation of two no-load signals before and after weight loading of the sensor, and after all the landing points are detected, a normal weighing mode of the electronic scale is entered.

Description

technical field [0001] The invention belongs to the technical field of electronic scale measurement, in particular to a multi-sensor electronic scale landing detection system and method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Electronic scales are widely used measurement tools, widely used in daily life, commercial transactions and industrial production. The electronic scale is also a very precise tool. Special attention should be paid when installing or placing it. It must be placed flat and stable, especially for multi-sensor electronic scales. The force is unstable, resulting in deviations in weighing. [0004] When installing and using a multi-sensor electronic scale, people usually start using it after leveling according to the level indicator. Whether each sensor landing point is in good contact with the ground can only b...

AI Technical Summary

Problems solved by technology

The electronic scale is also a very precise tool. Special attention should be paid when installing or placing it. It must be placed flat and stable, especially for multi-sensor electronic scales. The force is unstable, resulting in deviations in weighing

[0004] When installing and using a multi-sensor electronic scale, people usually start using it after leveling according to the level indicator. Whether each sensor landing point is in good contact with the ground can only be checked simply by observation, and it cannot be accurately judged. Some sensor landing points can be seen with the naked eye. It has landed on the ground, but it is really impossible to judge whether it is really true. Especially for platform scales or large-scale ground scales, it must be verified through long-term comparison and partial load tests, which is time-consuming and laborious, and the installation is difficult.

[0005] At present, some researchers have also tested each sensor of the multi-sensor electronic scale separately, but all of them are aimed at the level detection of the electronic scale platform, and the problems of each landing place of the electronic scale are not involved. From the detection system, detection method and detection In principle, the level detection of electronic scales and the actual detection of electronic scales are not the same thing at all. Generally, the level of electronic scales can be easily realized through the level indicating device of the electronic scale platform itself, but the actual problem of the sensor of electronic scales is still not solved. There is no effective solution, and the present invention is proposed for the actual detection of each landing point of the multi-sensor electronic scale

[0006] At present, the multi-sensor detection system for electronic scales uses the sensor weight value after data processing of the original AD value as the calculation basis, and does not use the original AD value of the sensor signal. The number and accuracy coefficient are greatly reduced. For high-precision electronic scales, it is impossible to achieve accurate detection by using the weight value

[0007] At the same time, the multi-sensor detection system currently involved has no mode switching function, and does not completely separate the detection circuit from the normal weighing circuit. When the electronic scale is normally weighed, the sensor signal, detection circuit signal and electronic scale junction box signal will be superimposed on each other. Mutual interference, these signals may be very weak, and may have no effect on digital signals, but for the weak analog signal of the sensor itself, this interference is very serious, resulting in inaccurate detection or weighing

Images