| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensor device capable of controlling an illumination light source to prevent erroneous lighting due to a radio wave interference.SOLUTION: When a Doppler signal having a signal strength exceeding a predetermined range of threshold value is input, a processing unit normally outputs a lighting signal to a light source control section. However, generally, the Doppler signal which is output at a timing of turning ON the illumination light source has high signal strength. When a Doppler signal exceeding a threshold value is input, a mask processing is performed for a period a predetermined mask time (specific time t2) elapses. Even when a Doppler signal of a signal strength exceeding the threshold value range is input as a mask processing, the processing section controls to restrict the output of the lighting signal until the specific time t2 elapses. Therefore, the light source control section does not perform the lighting control on the basis of a detection signal input during the specific time t2. With this, the illumination light source is controlled not to perform erroneous lighting generated by the illumination light source disposed adjacent to the illumination device due to a spike noise. |
