Method to operating light scanner for detecting objects in monitoring range

摘要

The method involves using first and second threshold vales. The received signal is passed to an interference signal processing stage, in which the reception signal is rectified and also integrated. In the transmitting operation of the transmitter (3), the integrated reception signal is compared with the second threshold value, and an object signal is reset. If interference light (13) is incident on the receiver (4), the integrated receiver signal lies above the second threshold value.