REMOTE MONITOR AND CONTROL SYSTEM

• Main Author: HARAGUCHI TADASHI
• Format: Patent
• Language: English
• Published: 07.02.1997
• Edition: 6
• Subjects: BROADCAST COMMUNICATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide a remote monitor and control system capable of easily executing remote monitor and control without providing a specific communication line for monitor. SOLUTION: When a remote monitor and control equipment 21 in a transmitting station 2 receive a control signal for a repeater station 3 from a monitor device 1, the control signal is superposd to a video signal by a control signal superposer 22 and the superposed signal is broadcasted from a transmitter 23 by a channel Ch-A. A slave station monitor and control equipment, 36 receives the control signal extracted from the channel Ch-A received by a receiving part 31 and decoded by a control signal decoder 35 and executes monitor based upon the control signal, the monitored result is transmitted to a monitor signal superposer 33 as a monitor signal, and the monitor signal is superposed to a video signal and broadcasted from a transmitting part 34 by a channel Ch-B. An off-air receiver 24 in the station 2 receives the channel Ch-B, the superposd monitor signal is decoded by a monitor signal decoder 25 and the decoded signal is sent to the device 1 through the equipment 21.