| 摘要 |
<p>When a set angle of a wind direction changing blade is changed, even if a portion of the wind direction changing blade moves within a detection field of view of a human body detecting means, in which infrared rays are received, to cause a change in the amount of the infrared rays, which in turn causes erroneous detection of the human body detecting means, detection information obtained during the movement of the wind direction changing blade is not temporarily utilized for a determination of a human body situation (for example, the presence or absence, position and amount of activity of a person) by a human body situation determining means, thereby preventing detection information other than a human body, which may be obtained in changing the angle of the wind direction changing blade, from being erroneously determined as a person.</p> |
