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Calibration method, control platform and system, and storage medium of voltage acquisition module

A technology of voltage acquisition and calibration method, which is applied in the electronic field, can solve the problems of unguaranteed precision and accuracy, voltage offset, high precision, etc., and achieve the goal of improving production efficiency, ensuring reliability and high precision, and high precision Effect

Active Publication Date: 2019-11-15
SHENZHEN ZTE NETVIEW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although this solution in the prior art is simple and clear, there are cases where the output voltage of the voltage reference source is not accurate enough and the voltage drift is caused by temperature drift. Frequent manual adjustment of the voltage reference source is required, and its accuracy and accuracy cannot be guaranteed. ; In addition, the calibration coefficient is the slope and intercept of a simple straight line, and there are cases where the error is large and the accuracy is not enough

Method used

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  • Calibration method, control platform and system, and storage medium of voltage acquisition module
  • Calibration method, control platform and system, and storage medium of voltage acquisition module
  • Calibration method, control platform and system, and storage medium of voltage acquisition module

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no. 1 example

[0036] Such as figure 1 As shown, the first embodiment of the present invention provides a method for calibrating a voltage acquisition module, the method comprising steps:

[0037] 11. Send the output voltage value V to the voltage reference source n command; the voltage reference source outputs the voltage value V after receiving the command sent by the control platform n ;

[0038] 12. Obtain the actual output voltage value V from the voltage reference source on , Obtain the voltage value V collected by the voltage acquisition module from the voltage acquisition module sn ; If the obtained actual output voltage value V on In the preset voltage range T n When it is within, compare and judge the voltage value V on and the voltage value V sn Whether the error is greater than the preset error value W n ;

[0039] In this embodiment, in order to obtain the actual output voltage value V more accurately on and the voltage value V sn , the actual output voltage value V c...

no. 2 example

[0055] Such as figure 2 As shown, the second embodiment of the present invention provides a control platform, and the control platform 20 includes: a memory 21, a processor 22, and a voltage acquisition module stored in the memory 21 and operable on the processor 22 The calibration program of the voltage acquisition module, when the calibration program of the voltage acquisition module is executed by the processor 22, is used to implement the following steps of the calibration method of the voltage acquisition module:

[0056] Send the output voltage value V to the voltage reference n command; the voltage reference source outputs the voltage value V after receiving the command sent by the control platform n ;

[0057] Obtain the actual output voltage value V from the voltage reference source on , Obtain the voltage value V collected by the voltage acquisition module from the voltage acquisition module sn ; If the obtained actual output voltage value V on In the preset vo...

no. 3 example

[0074] Such as image 3 As shown, the third embodiment of the present invention provides a calibration system of a voltage acquisition module, the calibration system includes a plurality of voltage acquisition modules 31 (Q1-Qn in the figure), a voltage reference source 32 and the second embodiment described control platform 33 .

[0075] The voltage acquisition module 31 and the voltage reference source 32 are respectively connected to the control platform 33 through a serial interface; Interface 321.

[0076] In this embodiment, the type of the serial interface is not limited here, it may be RS485, RS422 and so on.

[0077] The collection port 312 of the voltage collection module 31 is connected to the output port 322 of the voltage reference source 32 .

[0078] In this embodiment, the voltage reference source is a voltage reference source that outputs digital and analog synchronously, and outputs a high-precision voltage value digitally while outputting the analog volta...

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Abstract

A voltage acquisition module calibration method, control platform and system, and a computer readable storage medium. The method comprises the steps of: obtaining voltage values Vsn collected by m voltage acquisition modules and X preset voltage value ranges Tn (14); classifying the voltage values Vsn collected by the m voltage acquisition modules according to the X preset voltage value ranges Tn, and fitting the classified data to obtain X corresponding voltage calibration coefficient curves (15); sending the fitted X corresponding voltage calibration coefficient curves to the voltage collecting module, such that the voltage values collected by the voltage acquisition modules according to the X corresponding voltage calibration coefficient curves are calibrated (16). The method does not require manual adjustment of the output voltage of a voltage reference source at intervals, ensuring the calibration reliability and high precision of the voltage acquisition module. A number of voltage acquisition modules can be synchronously calibrated, greatly improving the efficiency of calibration processes. The invention is suitable for a wide range of voltages and has high precision and low error.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a calibration method for a voltage acquisition module, a control platform and system, and a computer-readable storage medium. Background technique [0002] For the voltage calibration of the voltage acquisition module, the existing technology usually outputs several different voltage values ​​for a voltage reference source tooling, and then uses the voltage acquisition module to collect these voltage points, and finally the voltage acquisition module uses the actual collected values ​​and The fixed voltage value given by the voltage reference source tooling is calculated to obtain the slope and intercept of a straight line, and the original voltage value is corrected and calibrated with this value. [0003] Although this solution in the prior art is simple and clear, there are cases where the output voltage of the voltage reference source is not accurate enough and the voltag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/00
CPCG01R35/005
Inventor 彭冠勇苏志强应红峰张益王学超
Owner SHENZHEN ZTE NETVIEW TECH
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