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A Filtering Method to Increase the Anti-jamming Effect of Electronic Scale

A technology that increases electronics and filtering differences, and is used in electrical components, impedance networks, detailed information of weighing equipment, etc., and can solve problems affecting the accuracy of electronic scales and inconsistency of digital data.

Active Publication Date: 2021-09-14
青岛英泰软件技术有限公司
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  • Application Information

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Problems solved by technology

[0002] In the application of electronic scales, its power supply is susceptible to the interference of regular pulses generated by the switching power supply of the high-power charger in the accessory grid (generally positive and negative bidirectional pulses, such as electric vehicle chargers, etc.), the interference pulse The signal is likely to be added to the analog signal output by the load cell of the electronic scale, resulting in the converted digital data inconsistent with the actual, affecting the accuracy of the electronic scale

Method used

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  • A Filtering Method to Increase the Anti-jamming Effect of Electronic Scale

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Embodiment Construction

[0013] see figure 1 , the present invention a kind of filtering method that increases the anti-jamming effect of electronic scale, it is characterized in that, comprises the following steps:

[0014] (1) After collecting the original data output by analog-to-digital conversion, the first original data will be temporarily recorded in tmp; the second original data obtained will be summed with the first original data in tmp and put into buf1 ;

[0015] (2) Perform first-level filtering on the data in buf1: the first-level filtering is difference filtering, and the specific filtering method is: if the data entering buf1 for the first time is greater than the preset first-level filtering difference, use This data value fills all buf1; if it is not the first time to enter the data into buf1 or the value of the data entering buf1 is less than the difference value of the first-stage filter, it is considered that the first-stage filter is stable, and corresponding identification (mark...

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Abstract

A filtering method to increase the anti-interference effect of the electronic scale. In the electronic scale, after the original data of the analog-to-digital conversion is collected, the first data is temporarily recorded in tmp, and the second number is obtained, and the sum is placed in buf1 According to the data filtering in buf1, the sum of the data is put into buf2, and similarly, the third-level filtering data in buf3 is obtained according to the data filtering in buf2. The invention has the advantages that: the sum of two data is used to offset the difference between positive and negative pulses and improve the anti-interference ability.

Description

technical field [0001] The invention relates to a filtering method for increasing the anti-interference effect of an electronic scale, which is used for improving the anti-interference ability of the electronic scale. Background technique [0002] In the application of electronic scales, its power supply is susceptible to the interference of regular pulses generated by the switching power supply of the high-power charger in the accessory grid (generally positive and negative bidirectional pulses, such as electric vehicle chargers, etc.), the interference pulse The signal is likely to be added to the analog signal output by the load cell of the electronic scale, causing the converted digital data to be inconsistent with the actual, affecting the accuracy of the electronic scale. Contents of the invention [0003] The invention provides a filtering method and system for increasing the anti-jamming effect of electronic scales, so as to solve the above-mentioned problems in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G23/00H03H17/02
CPCG01G23/00H03H17/0202
Inventor 李平
Owner 青岛英泰软件技术有限公司