Functional safety for a three-dimensional interior camera

摘要

An imaging sensor (10) for a land vehicle (1) for obtaining distance information, wherein the imaging sensor (10) is adapted to detect first (11) and second signals (12), the first signals (11) being coupled to beam pulses (13). a second emitter (21) of illuminated objects (2) reflected radiation pulses (13) and the second signals (12) to the radiation patterns (15) of a second emitter (22) illuminated objects (2) are reflected beam pattern (15), with a Evaluation device (30) which is designed to obtain a first distance information of these objects (2) as a function of the first signals (11) in a first distance measurement and a second distance information of these objects in a second distance measurement as a function of the second signals (12) and, in dependence on a comparison of the first and the second distance information, obtain a third distance information of these objects (2) and an output interface (40) which is executed in dependence on the third distance information to provide an image of these objects (2), wherein the imaging sensor (10) is designed such that it is functionally secured by the first and the second distance measurement in case of failure of one of these distance measurements. Furthermore, the invention relates to an imaging system (20) and its use, an environment detection system (50) for a land vehicle (1) and a method for functional protection of the environment detection system (50) according to the invention.