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A through-beam photoelectric sensor and its anti-interference method

A photoelectric sensor, through-beam technology, applied in the field of smart sensors, can solve problems such as poor experience, unsatisfactory installation and use, and poor versatility, and achieve fast computing speed, accurate computing accuracy, and reduced power consumption Effect

Active Publication Date: 2019-03-22
SHANGHAI LANBAO SENSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the existing sensor is suppressed by using a polarization filter, this can meet the zero-distance installation of two pairs of products, and an additional polarizer is required, which increases the cost of the product, and the versatility is not very good, as long as different shapes and structures need another add different polarizers
Moreover, after the detection distance is significantly reduced, it can only meet the zero-distance installation of two pairs of products, and cannot meet the zero-distance installation and use of multiple pairs of products.
It can only be adjusted by the potentiometer, not smart enough, and the user experience effect is not very good

Method used

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  • A through-beam photoelectric sensor and its anti-interference method
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  • A through-beam photoelectric sensor and its anti-interference method

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Embodiment Construction

[0036] Such as figure 1 As shown, the transmitter is on the left, including the power regulator module, indicator module, transmitter driver module, and MCU module, and the receiver is on the right, including the power regulator module, indicator module, receiver module, MCU module, output module, overload / short circuit module.

[0037] Under the premise that the distance does not attenuate, this solution can realize the function of zero-distance installation of multiple pairs of products to prevent mutual interference. Let the yellow light be L2 and the green light be L1, such as figure 2 As shown, the yellow light of the transmitter is off to indicate the A frequency, and the yellow light is on to indicate the B frequency. When the target blocks the light path of the A frequency, the corresponding receiving output acts, and the yellow light is on, and will not be affected by the light of the B frequency. Its output action, Y represents the installation distance, X repre...

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Abstract

The invention discloses a correlative photoelectric sensor. The sensor includes an emitter and a receiver. The emitter includes a first power supply voltage-stabilizing module, a first indicating lamp module, an emission drive module and a MCU module. The receiver includes a second power supply voltage-stabilizing module, a second indicating lamp module, a receiving module, a MCU module, an output module and an overload / short-circuit module. The emission drive module of the emitter emits a single to a second optical filter of the receiving module of the receiver via a first optical filter. The invention also discloses an anti-interference method of the correlative photoelectric sensor. The method includes the following steps: including a pair A and a pair B, installing the pair A and the pair B in parallel, the emitter of the pair A corresponding to the emitter of the pair B, and the receiver of the pair A corresponding to the receiver of the pair B.

Description

technical field [0001] The invention belongs to the technical field of intelligent sensors, in particular to a through-beam photoelectric sensor and an anti-interference method thereof. Background technique [0002] The through-beam photoelectric switch is an infrared sensor photoelectric product. The transmitter and receiver are powered separately, and the light is used as the medium to receive and convert the infrared light between the light emitting body and the light receiving body. It is a medium and long distance photoelectric product. In the warehousing and logistics industry, when detecting people, goods, and equipment, it is usually realized by medium and long-distance through-beam photoelectric sensors. Sometimes the installation requires two pairs of sensors to be installed at zero distance without interfering with each other. Traditional products will increase the structure and process costs. , to meet the demand. [0003] Existing products control the emission...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V8/12
CPCG01V8/12
Inventor 谢勇
Owner SHANGHAI LANBAO SENSING TECH