PURPOSE: To constitute the power source superposed type monitor camera device so that the operation time of plural cameras driven by a single power source part can be set and driven arbitrarily on the power source part side, respectively.
CONSTITUTION: The monitor camera device is constituted of camera parts 1-1, 1-n, transmission cable parts 2-1, 2-n, and a power source part 3. A DC power source superposition control circuit 12, and a timer circuit 13 are provided in the power source part 3 in order that an operation of plural camera parts can be set arbitrarily, respectively. Accordingly, since the operation can be set at every video camera connected, respectively, a necessary camera and an unnecessary camera can be subjected to driving control by a time unit, and a power saving monitoring system can be obtained.
TAKIMOTO TADAYUKI
KAMISAKI YASUNORI
HITACHI VIDEO & INF SYST