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Software self-calibrating method for position codes

A self-calibration and encoding technology, applied in information storage, static memory, instruments, etc., can solve the problems of time-consuming and labor-intensive, unfavorable software curing, etc., to achieve the effect of ensuring calibration accuracy, simple and feasible method, and improving work efficiency

Inactive Publication Date: 2011-08-31
中国兵器工业第二0六研究所
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Problems solved by technology

Among them, the method of adjusting the mechanical installation position of the encoding device requires fine-tuning the mechanical installation position of the encoding device, which is time-consuming and laborious; the method of modifying the software according to the angle information of the encoding device at the fixed position requires modifying the software to adapt to each A set of randomly assembled coding devices is not conducive to the curing of the software

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Embodiment Construction

[0015] The present invention first determines whether the position correction value needs to be recalculated by judging whether there is a self-calibration command. If there is a self-calibration command, the difference between the required code in the self-calibration parameter and the currently read code is calculated. It is stored in non-volatile as the code correction value; if there is no self-calibration command, the correction value is not updated. Secondly, read the code correction value from the non-volatile storage, calculate the sum of the currently received code and the code correction amount, and modulate the obtained sum as the system code according to the system coding accuracy requirements.

[0016] according to figure 1 As shown, the software self-calibration method of position coding includes the following operations:

[0017] (1) Judge whether the position code self-calibration command is received;

[0018] (2) The calculation of the difference between the self-c...

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Abstract

The invention provides a software self-calibrating method for position codes and belongs to the technical field of automatic control. The method comprises: when a self-calibrating command is received, working out the differences between required codes in self-calibrating parameters and currently read codes, and storing the differences worked out as code corrections in a nonvolatile manner; no matter whether a self-calibrating command is sent or not, reading the self-calibrating corrections of the position codes from a nonvolatile memory, working out the sums of the currently received codes and the code corrections and modeling the sum worked out according to requirements of system coding precision to obtain system codes. The method is used for solving the contradiction between the randomness of the assembly of an encoder or rotary transformer in a servo system and the requirement of a batch production system on consistency of codes at a certain structural position; and position codes in an automatic control system are self-calibrated by using software, so the workload for calibrating the position codes by a process of regulating assembly positions is eliminated, the software curing is promoted, the calibration accuracy of position codes is guaranteed, and working efficiency is improved.

Description

Technical field [0001] The invention belongs to the technical field of automatic control, relates to data processing of position coding, and particularly relates to software self-calibration of position coding. Background technique [0002] In position closed-loop automatic control systems, it is often necessary to calibrate the position of the system, that is, the zero position of the system code needs to be calibrated to a specific structural position, or a specific structural position needs to be calibrated to a specific angle code. The usual method is to adjust the mechanical installation position of the encoding device, or to modify the software according to the angle information of the encoding device in a fixed position. Among them, the method of adjusting the mechanical installation position of the encoding device requires fine adjustment of the mechanical installation position of the encoding device, which is time-consuming and laborious; the method of modifying the soft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C16/02G11C16/06
Inventor 曹福禄刘世挺孙向亮刘艳行高栋
Owner 中国兵器工业第二0六研究所
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