High-speed large-point-number measuring light curtain

A technology for measuring light curtains and large number of points, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of small number of measuring points, low measurement accuracy, slow light curtain measurement speed, etc., to reduce the scanning time of a single point, improve the Signal transmission speed, to achieve the effect of large-point scanning

Pending Publication Date: 2019-06-28
上海人赢网络科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the infrared light curtain profile recognition technology mainly has the following defects: the production of the light curtain is difficult, the cost is high, and it is easy to damage; the infrar

Method used

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  • High-speed large-point-number measuring light curtain
  • High-speed large-point-number measuring light curtain

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Example Embodiment

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] In a specific embodiment of the present invention, a high-speed large-point measurement light curtain includes: transmitting side housing 1, infrared transmitting circuit board 2, receiving side housing 3, infrared receiving circuit board 4, control circuit board 5 and filter Light sheet; Among them, the transmitting side housing 1 and the receiving side housing 3 include a profile 9, a head 10 and a mounting groove 11. The head 10...

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PUM

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Abstract

The invention provides a high-speed large-point-number measuring light curtain, thereby solving technical problems of a few of infrared light curtain points, slow measuring speed and large measurementerror in the prior art. The light curtain comprises a transmitting side case, an infrared transmitting circuit board, a receiving side case, an infrared receiving circuit board, a control circuit board and a filter. Each of the transmitting side case and the receiving side case includes a section bar, plugging ends, and a mounting slot; the plugging ends are arranged at the two ends of the section bar to seal openings at the two ends of the section bar; and the transmitting side case is opposite to the receiving side case. The control circuit is connected to the infrared receiving circuit board and includes a control computing hub and a differential transmission chip. According to the invention, information is transmitted by using the differential signals, so that the signal transmissionspeed is increased, the single-point scanning time is shortened, and high-speed scanning is realized. With the control circuit board and integration of circuit elements on the infrared transmitting circuit board and infrared receiving circuit board, the diode integration is improved, the large-point-number scanning is realized, and the scanning precision is improved.

Description

technical field [0001] The invention relates to the field of photoelectric measurement, in particular to a high-speed large-point measurement light curtain. Background technique [0002] Light curtain contour recognition technology is an important technology to describe the shape of objects. It is widely used in the fields of human body shape recognition and industrial equipment contour recognition. Thereafter, the processing judges the outer contour of the object according to the area where the illumination light is blocked and the time. In the prior art, infrared light is commonly used as illumination light, and a light curtain is used as a light source and a receiving device. [0003] In the existing technology, the infrared light curtain profile recognition technology mainly has the following defects: the production of the light curtain is difficult, the cost is high, and it is easy to damage; the infrared emission and the number of measurement points are small, resulti...

Claims

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Application Information

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IPC IPC(8): G01B11/24
Inventor 魏明钱宝祥
Owner 上海人赢网络科技有限公司
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