| 摘要 |
PROBLEM TO BE SOLVED: To surely store an image of an intruder by use of an interphone slave machine having image pick-up function and an interphone master machine having recording/storing function without setting a plurality of sensors. SOLUTION: A control circuit 311 of the interphone master machine 3 starts recording of images taken by a camera 101 of the interphone slave machine 1 to a recording/reproduction circuit 304 when an intrusion detection signal S1 is received from a human body detection part 200 of a sensor 2, and stores an image preliminarily recorded to the recording/reproduction circuit 302 at a predetermined time before a security abnormality detection signal S3 is received from a security abnormality detection part 201 of the sensor and an image recorded to the recording/reproduction circuit at a predetermined time after the signal is received to a memory circuit 305. The control circuit of the interphone master machine starts recording of images taken by the camera of the interphone slave machine to the recording/reproduction circuit when the human body detection part of the sensor is received. COPYRIGHT: (C)2009,JPO&INPIT
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