Camera for monitoring utilizing power line communication

Abstract

A power monitoring section detects the interruption of AC electric power from a power line, and switches operating power within a camera to power from a battery. A control section sets control of the camera to a different mode at the power stopping time. The operation is controlled to pick-up one static image at constant time intervals, and sequentially stores the static image to a data storage section. A voice section stops collecting sounds. The control section stops communication with a master set. When the AC electric power is restored the operating power is switched to the electric power from the power line. When a user utilizing the master set knows the restoration of the power, the user gives commands for reading image information stored during the power stoppage to the camera, and monitors the state during the interruption of the AC electric power.

Dependencies are inferred from the claim text.