| 摘要 |
The invention relates to a sensor system for detecting particles, in particular dirt particles or water droplets on a vehicle windscreen, comprising an optical sensor (3). The sensor (3) operates on the basis of light transit time and receives light signals (S) that are emitted by an emitter element and that are at least partially reflected. The emitter element and the sensor (3) are located and oriented on the exterior of the vehicle, on or in the vicinity of a tail gate (2) of said vehicle (1) in such a way that particles on the tail gate (2) can be detected by means of the sensor (3) by recording the portion of light signals (S) emitted by the emitter element that is backscattered by the particles. The invention also relates to the use of a sensor system and to a method for detecting particles, in particular dirt particles or water droplets on a vehicle windscreen, according to which light signals (S) are emitted by an emitter element, reflected light signals are received from a sensor (3) that operates on the basis of light transit time and that is located on the exterior of the vehicle (1), on or in the vicinity of a tail gate (2) of said vehicle (1), and particles on the tail gate (2) can be detected by means of the sensor (3) by recording the portion of light signals (S) emitted by the emitter element that is backscattered by the particles. |
