| 摘要 |
<p>The camera system includes a camera device, a control device and an application server, and they are connected in turn. The camera device which includes a camera module and a PLC camera adaptation module can be applied to produce audio/video information. The camera device modulates the audio/video information, and sends out the modulated information. The camera device also demodulates the modulated signal transferred from power line so as to obtain a control signal, and adjusts camera parameters according to the control signal. The control device is connected to the PLC camera adaptation module via power line. The control device is applied to demodulate a received modulated signal of audio/video information, and send out the demodulated signal. According to the received control indication information, the control device generates a control signal, modulates the control signal, and controls the camera module. The application server is used for storing and providing audio/video information, camera device information and controlling purview information of the camera device. The application server is also used for generating and sending out control indication information. The present invention also discloses a method for controlling camera. The present invention can control camera device remotely without using dedicated signal line.</p> |
