Safety laser scanner and method for maintaining operability
US11624823B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2019 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Oct 11, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A safety laser scanner for detecting objects in a monitored zone having a light transmitter for transmitting a light beam into the monitored zone; having a light receiver for generating a received signal from the light beam remitted by the objects; having a rotatable deflection unit for a periodic deflection of the light beam to scan the monitored zone in the course of the movement; having an internal reference target that reflects the transmitted light beam within the safety laser scanner to the light receiver to generate a reference signal; and having a control and evaluation unit that is configured to detect objects with reference to the received signal and to check the operability of the safety laser scanner with reference to the reference signal, The control and evaluation unit is here configured to change the sensitivity of the detection in dependence on the reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.