Security System for Securing the Surroundings of an Object

A security system for securing the surroundings of at least one object (112, 114, 12, 14) having a first safety laser scanner (116, 16) with which a first defined reference target is associated and having a second safety laser scanner (118, 18) with which a second defined reference target is associated, wherein a safety laser scanner has:

• a light transmitter (24);
• a light deflection unit (28) for a periodic deflection of the light into a scanning plane;
• a receiver (34) for providing received signals in dependence on light remitted at articles present in the field of vision of the scanner;
• and an evaluation unit (42) for evaluating the received signals with respect to the angle and the distance of the article and for providing a safety signal,
• characterized in that
• the scanning planes (120, 20) of both scanners (116, 118, 16, 18) are coplanar and the first scanner (16, 116 or 18, 118) forms the second reference target and the second scanner (118, 18 or 116, 16) forms the first reference target.