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State machine principle-based interpolation control method

A control method and state machine technology, applied in the direction of digital control, electrical program control, etc., can solve the problems of bulky hardware interpolation scheme, unfavorable equipment maintenance and upgrade, complex design circuit, etc., to meet real-time requirements and simple structure , the effect of high interpolation accuracy

Inactive Publication Date: 2015-05-06
浙江杰芯科技有限公司
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Problems solved by technology

[0018] The technical problem to be solved by the present invention is how to overcome the disadvantages of traditional hardware interpolation schemes such as bulky size, poor reliability, complex design circuits, which are very unfavorable for equipment maintenance and upgrades

Method used

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  • State machine principle-based interpolation control method

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Embodiment Construction

[0048] The following will combine Figure 1 to Figure 5 The interpolation control method based on the state machine principle based on the IP core provided by the present invention is described in detail, which is an optional embodiment of the present invention. It can be considered that those skilled in the art will not change the spirit and content of the present invention. To the extent possible, it can be modified and polished.

[0049] Please refer to image 3 , this embodiment provides an interpolation control method based on the principle of a state machine, which is realized by an interpolation control module based on an IP core, and includes the following steps:

[0050] S1: Initialize the integrand register and remainder register;

[0051] S2: According to the selected feed axis, get the number of output pulses for interpolation and the number of shifts required for normalization of left shifting; interpolation can be linear interpolation, circular interpolation, o...

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Abstract

The invention provides a state machine principle-based interpolation control method. The state machine principle-based interpolation control method can complete a four-shaft three-coordinate linkage function, and during an entire interpolation process, achieves high interpolation precision and reduces interpolation errors to be lower than one pulse equivalent, and meanwhile, during every interpolation cycle, at least one interpolation shaft can provide pulse output, so that interpolation rapidity and continuity can be guaranteed; under a 50M clock working frequency, the maximum interpolation calculation frequency can reach up to 5M times per second. A device also integrates a speed control module and accordingly, under set speed parameters, can automatically perform linear acceleration and deceleration control or S-curve acceleration and deceleration control according to the number of pulses required by an interpolation track and finally output the feed pulses and the direction driving signals of four shafts to control four motor driving shafts to move.

Description

technical field [0001] The invention relates to the field of motion control, in particular to an interpolation control method based on a state machine principle. Background technique [0002] With the development and extensive use of computer technology, electronic technology, automatic control technology, sensor measurement technology, and mechanical manufacturing technology, the realization of motion control system devices has mainly experienced the formation of three realization schemes: traditional hardware interpolation scheme, computer A software interpolation scheme and a two-level interpolation scheme using hardware and software. [0003] (1) Traditional hardware interpolation scheme [0004] The reason why it is called the traditional hardware interpolation scheme is because this scheme is mainly used in early CNC machine tool systems. For example, in 1952, the control system of the world's first CNC machine tool was all realized by electronic tube components; lat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/4103
CPCG05B19/4103
Inventor 唐艳丽潘再生施一明童庆王挺
Owner 浙江杰芯科技有限公司
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