| 摘要 |
A method of operating a sensor system, the sensor system comprising at least one sensor (26, 30), in particular designed as a proximity sensor (26, 30), with regard to generating a trigger signal (40) indicative of an occurrence of an event, in particular an operator-intended event in the presence of noise, the method comprising repetitive steps of acquiring (50) the sensor signal (28, 32) at specified sampling times, comparing (52) a value obtained as a presently sampled sensor signal (28, 32) with a presently valid first threshold value (36), generating (54) a trigger signal (40) if the value obtained as the presently sampled sensor signal (28, 32) is as large as or exceeds the presently valid first threshold value (36), omitting to generate a trigger signal (40) if the value obtained as the presently sampled sensor signal (28, 32) is less than or equal to the presently valid first threshold value (36), forming (56) a subset (44) out of the sampled sensor signals (28, 32), wherein a predetermined number of consecutively acquired sensor signals (28, 32) immediately preceding the presently sampled sensor signal (28, 32) is excluded from forming the subset (44), based on the formed subset (44) of sampled sensor signals (28, 32), determining (58) an update value for the first threshold value (36), and replacing (60) the presently valid first threshold value (36) by the update value for the first threshold value (36) as a new presently valid first threshold value (36). |
