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Servo Control Method Based on Synchronous Processing of Clock Excitation Feedback

A technology of servo control and synchronous processing, applied in the direction of program control, digital control, electrical program control, etc., can solve the problems of out-of-synchronization of feedback and poor control effect, so as to save hardware resources, avoid poor effect, and reduce design cost effect

Active Publication Date: 2021-07-30
HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a servo control method based on synchronous processing of clock excitation feedback amount to solve the problem of poor control effect caused by clock excitation feedback amount out of sync

Method used

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  • Servo Control Method Based on Synchronous Processing of Clock Excitation Feedback
  • Servo Control Method Based on Synchronous Processing of Clock Excitation Feedback
  • Servo Control Method Based on Synchronous Processing of Clock Excitation Feedback

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Embodiment Construction

[0021] After the programmable logic device of the servo control system collects a beat of absolute coded position data, it actively sends a synchronization signal to the servo control chip. The servo control chip uses the synchronization signal as an external interrupt input source to trigger an external interrupt, and the interrupt receives the programmable logic The current position data collected by the device is used for closed-loop servo control, which can avoid the problem of poor control effect caused by asynchronous feedback based on clock excitation.

[0022] This method sends a synchronous signal in real time through the programmable logic device to realize the synchronous acquisition of absolute coded position data by the servo control chip. The functional block diagram of the servo control system is shown in Figure 4 shown.

[0023] The programmable logic device of the closed-loop servo system sends a clock excitation signal of a certain frequency according to the...

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Abstract

The invention discloses a servo control method based on synchronous processing of clock excitation feedback amount. The main implementation process of the method is: after the programmable logic device of the servo control system collects a beat of absolute coded position data, it actively sends the data to the servo control chip. A synchronous signal, the servo control chip uses the synchronous signal as an external interrupt input source to trigger an external interrupt, and the interrupt receives the current position data collected by the programmable logic device to perform closed-loop servo control. The invention realizes the synchronous processing of the real-time feedback quantity by the high-precision servo control system based on the clock excitation feedback quantity, and avoids the problem of poor closed-loop control effect caused by asynchronous collection of the feedback quantity.

Description

technical field [0001] The invention relates to the field of electrical engineering application technology, in particular to a servo control method based on clock excitation feedback amount synchronous processing. Background technique [0002] High-precision servo control systems mostly use absolute encoders as closed-loop control feedback sensors. Compared with incremental encoders, absolute encoders have the advantages of directly transmitting absolute coded positions, no cumulative position errors, and high resolution. The transmission protocol of the absolute encoder basically uses the clock signal as the excitation to transmit the absolute encoding position, and the servo control chip basically does not have the ability to output the clock excitation signal in the absolute encoding position transmission protocol (the example of the transmission protocol is as follows: figure 1 As shown), an additional programmable logic device is required as a transfer station to output...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/414
CPCG05B19/4142G05B2219/34013
Inventor 张善交徐辉煌刘兆梅
Owner HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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