| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide dirt detection equipment which detects dirt attached on an euphotic face of photovoltaic cell system mounted on a vehicle by a simple method, and to provide a cleaner. <P>SOLUTION: Dirt detection equipment 30 detects the dirt attached on a euphotic face 21 of photovoltaic cell system 20 mounted on the vehicle. The equipment comprises vehicle speed detection means 34 for detecting the speed of vehicle, and designated phenomenon detection means for detecting a designated phenomenon generated by the dirt attached on the euphotic face 21 of photovoltaic cell system 20. Based on the vehicle speed detected by the vehicle speed detection means 34, and an aging of the designated phenomenon detected by the designated phenomenon detection means; the dirt is detected as attached on the euphotic face 21 of photovoltaic cell system 20. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
