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Method and device for eliminating interference from environment light

A technology of ambient light and interference waves, applied in the field of sensors, can solve the problem that photoelectric sensors cannot detect objects

Inactive Publication Date: 2019-08-16
SHENZHEN CHEVEN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and device for eliminating ambient light interference, which are used to solve the problem in the prior art that photoelectric sensors cannot accurately detect targets under ambient light interference

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  • Method and device for eliminating interference from environment light
  • Method and device for eliminating interference from environment light

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0048] figure 1 It is a schematic diagram of the implementation flow of a method for eliminating ambient light interference provided in Embodiment 1 of the present invention. The executive body of this embodiment is the device for eliminating ambient light interference, which is specifically applied to photoelectric sensors. Such as fi...

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Abstract

The invention provides a method and a device for eliminating interference from environment light, and is applied in a photoelectric sensor. The method comprises steps of receiving echo signals that are the reflected signals after modulating signals emitted from the photoelectric sensor are interfered by environment light, acquiring interference wave levels according to echo signals, processing theinterference wave levels to obtain reference levels, and eliminating the environment light interference signals in the echo signals, adjusting the reference levels in real time according to the interference wave levels, so as to eliminate the interference of external environment light on the photoelectric sensor, enhance the anti-light interference of the photoelectric sensor, and solve the problem that photoelectric sensors can not accurately detect an object under the interference of environment light.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a method and device for eliminating ambient light interference. Background technique [0002] As a detection device, a sensor is a device or device that can sense a specified measured value and convert it into a usable signal according to a certain rule (mathematical function rule), usually consisting of a sensitive element and a conversion element. A photoelectric sensor is a device that converts optical signals into electrical signals. It performs photoelectric detection based on the photoelectric effect. It has the advantages of high precision, fast response, non-contact, etc., and has many measurable parameters. , Photoelectric sensors are widely used in detection and control, and are one of the most widely used sensors in industrial sensors. [0003] According to the characteristics of the received optical signal, the working mode of the photoelectric sensor is divided into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/26
CPCG01D5/26
Inventor 叶立平唐可信周志力田鼎茂聂金元
Owner SHENZHEN CHEVEN TECH