Optical sensor
By using an optical window monitoring unit with variable limit values in an optical sensor, the limit value is set according to the specific maximum detection distance in the application, the problem of front screen pollution affecting detection reliability is solved, and the usability and detection reliability of the sensor are improved.
CN119667651APending Publication Date: 2025-03-21LEUZE ELECTRONIC GMBH & CO KG & OTHER PARTNERS
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Patent Information
- Application Number
- CN202411323439.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-21
- Filing Date
- 2024-09-23
- Publication Date
- 2025-03-21
AI Technical Summary
Technical Problem
The detection reliability of existing optical sensors within the maximum range is affected by front screen contamination, resulting in non-essential safety state transitions, limiting the availability of the sensor.
Method used
By introducing an optical window monitoring unit with variable limit values into the optical sensor, the degree of contamination of the front screen is detected and the limit value is set according to the specific maximum detection distance in the application, avoiding non-essential safety state transitions.
Benefits of technology
Improves the functional reliability and availability of optical sensors, ensures that object detection within the maximum detection distance has the required detection reliability and avoids non-essential downtime.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to an optical sensor (1) having a housing (2) with a front screen (8) for detecting an object (O) in a monitoring region, comprising a housing (2) with a front screen (8), in which housing (2) at least one emitter (4) emitting a light beam (3) and at least one receiver (5) receiving the light beam (3) are arranged, the light beam (3) emitted by the emitter (4) is guided through the front screen (8) into the monitoring area, and the light beam (3) reflected by an object (O) is guided through the front screen (8) to the receiver (5); and an evaluation unit (6), in which an object detection signal is generated as a function of a reception signal of the receiver (5), which object detection signal is output via an output device (7), with an optical window monitoring unit, by means of which a degree of contamination of the front screen (8) is detected. When the window monitoring unit detects a limit value of the degree of contamination of the front screen (8), the optical sensor (1) automatically switches to a safe state, the limit value being specified as a function of a maximum detection distance.
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