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Rotary encoder based on color discrimination

A rotary encoder and color recognition technology, applied in the field of rotary encoder, to achieve the effect of strong anti-electromagnetic interference, low environmental requirements and high resolution

Active Publication Date: 2011-06-22
SHANGHAI UNIVERSITY OF ELECTRIC POWER +1
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  • Description
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  • Application Information

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Problems solved by technology

[0008] The present invention is aimed at the problems of various existing encoders, and proposes a rotary encoder based on color recognition, which detects the color on the color wheel through a color sensor, thereby distinguishing the rotation angle and direction. The process is simple, convenient, miniaturized, and has Excellent anti-vibration, temperature resistance and anti-interference performance, can adapt to any environmental requirements

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  • Rotary encoder based on color discrimination
  • Rotary encoder based on color discrimination
  • Rotary encoder based on color discrimination

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Embodiment Construction

[0020] Such as figure 1 As shown in the schematic diagram, the color encoder is mainly composed of a light source 1, a color wheel 2, a color sensor 3 and a processor 4. The light emitted by the light source 1 is received by the color sensor 3 after being reflected or transmitted by the color wheel 2. The color sensor 3 converts the detected colored light into a digital signal, and outputs it to the processor 4. The processor collects the output signal of the sensor, and calculates the current position, rotation angle, rotation direction, etc. of the encoder according to a certain software algorithm, and outputs .

[0021] The implementation plan is as follows figure 2 , 3 The structural schematic diagram of the rotary encoder based on color recognition is shown, the color disc 2 is fixed by the main shaft 6, and rotates around the main shaft 6; For the light gaps 5A, 5B on the shading cover 7 or the shading disc 8 ; the shading cover 7 or the shading disc 8 is close to th...

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Abstract

The invention relates to a rotary encoder based on color discrimination. After being reflected or transmitted by a color disk, light emitted by a light source is received by at least one color sensor, the color sensor converts the detected colored light into a digital signal and outputs the signal into a processor, the processor collects the output signal of the sensor, and the current position, the rotation angle, the direction of rotation and other data of the encoder are calculated according to certain software algorithm; the color encoder can realize the continuous detection of positions,and the accuracy of the encoder is improved; corresponding to the complex coded disk structure in the traditional encoder, the structure of the color encoder is further simplified; the color encoder adopts light sensing and has low requirement on environment, and especially, the capability of anti-electromagnetic interference is strong; and the invention can meet the requirements of various application occasions.

Description

technical field [0001] The invention relates to a detection element, in particular to a rotary encoder based on color recognition. Background technique [0002] Existing encoders are mainly divided into five categories: photoelectric encoders, magnetic grid encoders, capacitive grid encoders, inductive synchronizers, and resistive contact encoders. [0003] The photoelectric encoder is composed of shafting, grating, light source and photoelectric receiving and converting components. When the main grating connected to the main shaft (that is, the code disc) rotates with the main shaft, it overlaps with the indicating grating to form Moiré fringes, and outputs a photoelectric displacement signal corresponding to the rotation angle after photoelectric conversion. After electronic processing, it is connected with the computer After being connected with the display device, the real-time control and measurement of the angular position can be realized. The photoelectric encoder h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/26G01B11/26G01P13/00G01J3/50G01P3/36
Inventor 徐耀良杨宁孔璐石锦翔娄春宏
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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