Patent ID: 7675416
Filing Date: 2010-03-09
Classification: G01S,G08B

Abstract:
1. An intruder detection device for deciding the occurrence of an invasion if an electric wave, which is received by a leakage transfer conduit on a receiving side juxtaposed to a leakage transfer conduit on a transmitting side for receiving a leakage electric wave from said transmitting leakage transfer conduit, changes indicative of an intruder, comprising: said transmitting side leakage transfer conduit comprising a plurality of leakage slots along the conduit, and opposing corresponding slots along the juxtaposed receiving side leakage transfer conduit, a module having a transmission unit generating a spectrum diffusion signal for outputting a modulated carrier wave to said transmitting leakage transfer passage and being covered with a casing, a sensor card having a plurality of reference spectrum diffusion signal generating means providing respective output corresponding to respective references signals indicative of intruder invasion positions, a plurality of correlating means, for collating an output reference spectrum diffusion signal of said plurality of reference spectrum diffusion signal generating means with the received signal from the receiving leakage transfer passage, and setting means for adjusting a detection precision which is determined by said plurality of reference spectrum diffusion signal generating means and said plurality of correlating means, whereby an invasion position of an intruder is detected from the individual outputs of said plurality of correlating means, and a power source device provided individually for said module and said sensor card; wherein said sensor card is juxtaposed to said module.