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Detachable entrance and exit gate with a combined commodity burglarproofing and small arms detecting system

  • US 20040183669A1
  • Filed: 04/02/2004
  • Published: 09/23/2004
  • Est. Priority Date: 07/16/2002
  • Status: Active Grant
First Claim
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1. A detachable entrance and exit gate with a combined commodity burglarproofing and small arms detecting system, comprising:

  • a detachable entrance and exit gate with a pair of vertical type panels which are oppositely disposed inside of an entrance and exit door;

    a central processing unit connected with transmitting and receiving signal frequency coil portions;

    an image-receiving device, a warning flare and a photographing device which are controlled by the central processing unit, wherein the transmitting and receiving coil portions comprise;

    a small arms detecting transmitting coil portion and a commodity burglarproofing transmitting coil portion interiorly installed at one of the vertical type panels of the entrance and exit gate; and

    a small arms detecting receiving coil portion and a commodity burglarproofing receiving coil portion interiorly installed at the other vertical type panel of the entrance and exit gate;

    wherein a variation existing between a frequency zone of the small arms detecting transmitting and receiving coil portions and a frequency zone of the commodity burglarproofing transmitting and receiving coil portions can be largely established, resulting in no mutual interference.

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