| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect the presence or absence of a person without installing a human detection sensor separately. <P>SOLUTION: VAV controllers 6-1 and 6-2 capable of wireless communication are disposed within areas to which transmission from the VAN controllers is possible each other. The VAV controller 6-1 receives a transmission radio wave from the VAV controller 6-2 and detects whether a person exists within a coverage area AR1 of the VAV controller 6-1 or not on the basis of a variation in reception level of the received transmission radio wave. The VAV controller 6-2 receives a transmission radio wave from the VAV controller 6-1 and detects whether a person exists within a coverage area AR2 of the VAV controller 6-2 or not on the basis of a variation in reception level of the received transmission radio wave. The VAV controllers 6-1 and 6-2 control damper openings of VAV units 4-1 and 4-2 on the basis of person detection results in their coverage areas AR1 and AR2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
