Patent ID: 6456322
Filing Date: 2002-09-24
Classification: G08B,H04N

Abstract:
Electronic warning and protection system against intruders for isolated house, apartment and office buildings generally, characterized in that it comprises one or more transmitting electronic units, here called remote units (50, 80, 90), equipped with microtelecameras (51, 81, 92), placed at the entrances, in the internal and external areas (40, 61) of the buildings (10, 60) to be guarded and comprises a receiving electronic unit, hereinafter called a local unit (20, 70) connected to the screen (72) of a television set (11) or of a computer (71) or to a video recorder (12) and the like, each remote unit automatically transmitting, when a presence especially a person (57, 85) enters the tele-camera's range of action, the image of said presence (58, 86) to the local unit (20, 70) that transfers it to the screen (72) or to the videocassette of the video recorder (12), said image replacing any that may be already present on the screen or that are being recorded, it being thus possible to see in good time and to record in real time images (58, 86) of a possible ill-intentioned person (57, 85) or intruder generally, that the remote units (50, 50, 90) show their connection, hereinafter called an â€œactive connectionâ€  with the local unit (20, 70) by a signal of â€œcarrier presenceâ€  and in that when a proximity sensor (52), associated to the telecameras (51), perceives in its range of action a presence, especially that of a person (57), said sensor transmits to said local unit (20) a warning signal, hereinafter called a â€œwarning signalâ€ , and in that when said local unit receives both the signal of â€œactive connectionâ€  and the â€œwarning signalâ€  it produces a signal, hereinafter called a â€œstarting up signalâ€ , that determines transmission of the image (58) to the screen of the television set (11) or of the computer, or to the video recorder.