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Accurate stroke positioning system capable of allowing large deviation

A stroke positioning and precise positioning technology, which is applied in the direction of instruments, measuring devices, and conversion sensor output, etc., can solve the problem that the positioning accuracy and the expansion of the tolerance range cannot be obtained at the same time, and achieve low installation and debugging requirements, low implementation costs, and low structure. simple effect

Pending Publication Date: 2022-08-02
成都唐源智控技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the position precise positioning signal and the tolerance range signal are the same signal source, so it is impossible to improve the positioning accuracy and expand the tolerance range at the same time

Method used

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  • Accurate stroke positioning system capable of allowing large deviation
  • Accurate stroke positioning system capable of allowing large deviation
  • Accurate stroke positioning system capable of allowing large deviation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like image 3 As shown, the present embodiment provides a precise stroke positioning system that allows large deviations, including a code plate 3, a detection window 1 4 and a detection window 2 5; the code plate 3 is provided with a detection window 4 and a detection window for triggering Two gaps 6 of the same width in the second 5, the width of the gap 6 is L5, and the width of the code plate part between the two gaps 6 is L2; The distance is L1, which is the maximum signal boundary value of the two detection windows.

[0041] Different coded signals are formed by the positions between the code plate 3 and the two detection windows, and the travel positioning information of the equipment to be detected is judged by the coded signals.

[0042] In order to effectively trigger the detection window, the position between the code board 3 and the two detection windows must satisfy: (1) L1L5.

[0043] By adjusting the width L2 of the code plate portion between the two no...

Embodiment 2

[0048] On the basis of Embodiment 1, based on the above-mentioned precise stroke positioning system that allows large deviations, the signal detection switch and the code board can be output according to different situations when the detection window 1 4 and / or the detection window 2 5 are triggered. The combination of positions between 3 corresponds to the encoded signal formed.

[0049] Correspondingly, the travel positioning information includes a positioning position status, and the positioning position status includes a precise positioning status, a positioning deviation status, and a limit status of a maximum allowable positioning deviation range. in:

[0050] Determine the precise positioning position signal of the precise positioning state according to the numbered signal data corresponding to the precise positioning state;

[0051] According to the encoded signal data corresponding to the positioning deviation state, the identifiable range position signal of the posi...

Embodiment 3

[0061] The positioning steps realized by the precise stroke positioning system that allows large deviations are as follows:

[0062] First, when the two detection windows are located on the left side of the code board 3 or the right side of the code board 3, it is set to the initial state, that is, the signal state in which the detection windows are not triggered, such as Figure 4 shown;

[0063] When the two detection windows and the code plate 3 move relative to each other, one detection window is blocked, and the other detection window is not blocked and is located at the gap 6, the state at this time is regarded as a positioning deviation state of the stroke detection signal; the positioning deviation In this state, valid positioning position signals can be obtained from the output coded signals, and position signals in precise positioning status can also be distinguished, and the range of allowable positioning deviations can be expanded, such as Figure 5 shown;

[006...

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Abstract

The invention discloses an accurate stroke positioning system allowing large deviation, which comprises a code plate and two detection windows, the code plate is provided with two notches which are used for triggering the detection window I and the detection window II and have the same width, the width of the notches is L5, and the width of the code plate part between the two notches is L2; the distance between the outermost side of the detection window I and the outermost side of the detection window II is L1, namely the maximum signal boundary value of the two detection windows; different coding signals are formed through the positions between the code plate and the two detection windows, and the stroke positioning information of the to-be-detected equipment is judged through the coding signals; the code plate and the two detection windows need to meet the following conditions: L1 is less than L2, and L1 is greater than L5. According to the design of the signal detection switch and the code plate, the structure is simple, the implementation cost is low, and the requirement for installation and debugging is low.

Description

technical field [0001] The invention relates to an application technology that needs to use a travel switch to realize the position positioning of moving parts, in particular to a precise travel positioning system that allows large deviations. Background technique [0002] At present, the application of travel switches for equipment position positioning is very common and can be seen on various types of automation equipment. Whether it is mechanical, photoelectric, inductive, capacitive, Hall induction and other types of travel switches, when used for equipment travel position positioning, it is impossible to allow large control position deviation and obtain accurate position positioning. have to. [0003] like figure 1 As shown, the corresponding signal can be obtained by using a quadrature encoder with dual signal output. The output coded signal of the quadrature encoder is two signals with a phase difference of 90°. A complete output signal includes 4 states 00 signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/00
CPCG01D5/00
Inventor 冯秦曹伟李德全任中山夏文星苏轩
Owner 成都唐源智控技术有限责任公司
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