Method for the operation of an optoelectronic sensor
US6121605A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1998 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jul 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/487
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method of operating an optoelectronic sensor, in particular a light barrier, in which a light signal is sent by means of a light transmitter into a monitored region, and a light receiver designed to receive transmitted and reflected light signals delivers a reception signal, the amplitude of which is investigated for the presence of an object in the monitored region, with an article detection signal being transmitted if a recognition threshold is exceeded or fallen short of, characterized in that a plurality of switching threshold values are preset, with a switching signal being triggered when the received signal exceeds or falls short of these switching threshold values, in that the number of the switching signals which arise with respect to each switching threshold is found; and in that the recognition threshold value and the switching threshold values are set or adjusted in dependence on the numbers found.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.