| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect occurrence of abnormality in a sensor in a concentrated control unit without needing change of systems in software and hardware when an air-conditioning controller performs the control to continue an operation of an air conditioner by transmitting substitute data for abnormal data to the concentrated control unit in occurrence of abnormality in the sensor. <P>SOLUTION: A control section of each air-conditioning controller 22 transmits a predetermined value outside of a normal temperature region, detectable by a temperature sensor 6 in a normal operation, and a substitute value continued from the predetermined value as detection values of the temperature sensor 6 from a data transmitting section to a central control unit 31 when the abnormality in motion of the temperature sensor 6 is detected by an abnormality detecting section, and a central control section of the central control unit 31 detects that the temperature sensor 6 includes abnormality in motion when the detection value of the temperature sensor 6 received by a communicating section includes the predetermined value. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
