| 摘要 |
An outdoor fault monitoring device carries out radio maintenance communication with a maintenance terminal, positioned at a remote place, wherein a fault monitoring function part monitors occurrence/non-occurrence of a fault in a primary device function part. Upon detecting occurrence of a fault, the fault monitoring function part activates a radio maintenance function part. Alternatively, the fault monitoring function part deactivates the radio maintenance communication function part due to non-occurrence of a fault. In this case, it is possible to deactivate the radio maintenance communication function part upon detecting disconnection of a radio maintenance communication. Thus, it is possible to improve security against communication jamming created by a malicious person. Additionally, it is possible to suppress power consumption and to reduce a processing load by preventing unnecessary radio communication. |
