| 摘要 |
PROBLEM TO BE SOLVED: To improve convenience when setting a sensor camera to a security mode and when canceling the set security mode. SOLUTION: A wireless transmitter 4, carried by a resident, is capable of performing wireless communication with a wireless receiver 5 having a reception area Z3 wider than warning areas Z1, Z2 that at least one sensor camera 2, 3 has. In the wireless transmitter 4, an operation for setting the relevant sensor camera to the security mode and for canceling the set security mode can also be performed from the outside of the warning area. Consequently, the operation of the sensor camera prior to performing the canceling operation by a resident using the wireless transmitter is invalidated, thereby stopping video-recording/storage of video images picked up by the sensor camera into a resident room master unit 6 or issuance of warning at an entrance slave unit, the sensor camera and the resident room master unit. COPYRIGHT: (C)2009,JPO&INPIT
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