SYSTEM AND METHOD FOR SUPPLYING POWER TO SURVEILLANCE VIDEO CAMERAS AND PROTECTION CASES FOR SUCH VIDEO CAMERAS

摘要

The present invention relates to a power supply system for a video camera (2) and a video camera protective case (1). The system includes a first device 13 receiving power from a remote device and also referred to as a power device and the first device 13 supplying a supply voltage 131 and a data signal 130 to a power supply input line 18). The plurality of power supply lines 14a-14e are connected to the first output of the power device 13 and supply voltage 131 extracted by the power device 13 to a plurality of electrical components 7, , 10). The system further comprises a power supply device (19) connected to the powering device (13), the device receiving the supply voltage and the data signal from the powering device as an input. The power supply device supplies the output voltage and data signal on the output line 20 and notifies the control circuit 16 about the requested power on the output line 20 to which the video camera is connected. The control circuit 16 is operatively connected to the power supply lines 14a-14e of the electrical components 7, 8, 9, 10, The power absorption from one or more power supply lines 14a-14e is interrupted or reduced. A case and a method for supplying power thereto are also provided.