Central/remote television monitoring system

摘要

A central/remote television monitoring system in accordance with the present invention includes a central station having a control signal transmitter for transmitting dual-tone camera select and single-tone camera control signals to a remote station and an audio/video receiver for receiving audio/video signals transmitted from the remote station. The remote station includes a plurality of television cameras and a control signal receiver and decoder for decoding the dual-tone camera select signals and the single-tone camera control signals received from the central station and for enabling and controlling a selected camera. An audio/video transmitter transmits the audio/video signal from the selected camera to the central station for further processing. The remote station includes an auto-enable feature by which the remote station can enable itself and the central station and a camera identification video generator for positively identifying the selected remote camera at the central station.