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Correction method and device for encoder

A correction method and encoder technology, applied in the field of encoder correction, can solve problems such as inaccurate correction of the encoder

Active Publication Date: 2020-08-18
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for correcting an encoder, which at least solves the problem of correcting the measurement value of the encoder by using an inductive limit method in the prior art. accurate technical questions

Method used

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  • Correction method and device for encoder
  • Correction method and device for encoder
  • Correction method and device for encoder

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Experimental program
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Effect test

Embodiment 1

[0023] According to an embodiment of the present invention, an embodiment of a correction method for an encoder is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0024] figure 1 is a flow chart of an encoder correction method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0025] Step S102, acquiring the readings of the encoder installed on the target object in real time, wherein the readings of the encoder are used to determine the real-time position of the target object.

[0026] As an optional embodiment, the above-mentioned target object can be any mobile device that travels along the t...

Embodiment 2

[0082] According to an embodiment of the present invention, an embodiment of a device for realizing the correction method of the above encoder is also provided, Figure 9 is a schematic diagram of a correction device for an encoder according to an embodiment of the present invention, such as Figure 9 As shown, the device includes: an acquisition module 901 , a judgment module 903 and a correction module 905 .

[0083] Wherein, the obtaining module 901 is used to obtain the reading of the encoder installed on the target object in real time, wherein the reading of the encoder is used to determine the real-time position of the target object;

[0084] Judging module 903, configured to judge whether the first deviation value between the real-time position and the initial judgment position exceeds a preset threshold, wherein the initial judgment position is at least one of the following: the initial position calculated according to the real-time position of the target object, The ...

Embodiment 3

[0098] According to an embodiment of the present invention, a storage medium is further provided, and the storage medium includes a stored program, wherein the program executes any optional or preferred method for correcting an encoder in Embodiment 1.

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Abstract

The invention discloses an encoder correction method and an encoder correction device. The encoder correction method comprises the steps of: acquiring a reading of an encoder installed on a target object in real time, wherein the reading of the encoder is used for determining a real-time position of the target object; determining whether a first deviation value of the real-time position and an initial determination position exceeds a preset threshold value; and correcting the real-time position of the target object determined based on the reading of the encoder according to a preset deviationvalue range of a second deviation value of positions of code carriers read by means of an RF reader-writer and the real-time position of the target object determined based on the reading of the encoder when the first deviation value does not exceed the preset threshold value, wherein the code carriers are RF tags deployed on a driving track of the target object according to a preset spacing distance. The encoder correction method and the encoder correction device solve the technical problem of inaccurate correction of the encoder since missed detection and error detection are prone to occur when an inductive limiting method is adopted for correcting a measured value of the encoder in the prior art.

Description

technical field [0001] The invention relates to the field of port logistics, in particular to an encoder correction method and device. Background technique [0002] Port track mobile equipment refers to equipment that can move along the front track of the wharf, such as ship unloaders, bucket wheel stackers and reclaimers, and ship loaders. Due to the wide range of the port, these track-type mobile devices travel a long distance on the track. The position of the device is mainly measured by a photoelectric absolute value encoder. The photoelectric encoder mainly includes a light-emitting element, a photosensitive element, a slit disc, a The grating disk and the photosensitive element with a fixed structure are used in combination with an infrared photosensitive receiving tube and a luminous tube. The encoder generates photocurrent under light conditions, and temperature changes will cause waveform deformation and DC level drift, which will cause errors in the output signal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 杨敏康冯军伟姚文钊黄雷夏新甲
Owner CHINA SHENHUA ENERGY CO LTD