LIGHT DETECTION AND RANGING SYSTEM AND METHOD FOR OPERATING AND TESTING A LIGHT DETECTION AND RANGING SYSTEM, PARTICULARLY FOR SAFETY RELEVANT APPLICATIONS

摘要

The invention refers to a light detection and ranging system 1, particularly for safety relevant applications,comprising:at least one first light source 2 for sending a light signal 3 to the surroundings of the light detection and ranging system 1; at least one photo detector 4 for receiving a light signal 3 from the surroundings of the light detection and ranging system 1;at least one signal processing unit 5 for receiving and processing the signal of the at least one detector 4 for detecting objects 6 in the surroundings of the light detection and ranging system 1;at least one control unit 7 for controlling, particularly synchronizing, the at least one light source 2, the at least one photo detector 4 and/or the at least one signal processing unit 5;characterized in thatthe light detection and ranging system 1 further comprises a test unit 8 for testing the at least one photo detector 4 and the at least one signal processing unit 5, wherein the test unit 8 comprises a second light source 9 for sending a test light signal 10 within the light detection and ranging system 1 to the at least one photo detector 4.;The invention further relates to a method for operating and testing a light detection and ranging system 1, particularly for safety relevant applications and a light detection and ranging system 1 implementing the method.