Title:
INTRUSION SENSOR
Document Type and Number:
Japanese Patent JP2006146592
Kind Code:
A
Abstract:
To provide an intrusion sensor capable of widening an intruder detection area, freely forming the detection area regardless of the structure of a protective fence, and ensuring the detection of intruders without malfunctioning due to wind.
Rectangular-wave signals are generated and applied to conductors 6a, 6b extended across an intrusion prevention zone. Upon detection of the rectangular-wave signals applied to the conductors 6a, 6b, the rectangular-wave signals are monitored to detect the presence of an intruder or an intruding object.
Inventors:
MIZUHARA HIROHISA
HASHIMOTO TADASHI
HASHIMOTO TADASHI
Application Number:
JP2004336284A
Publication Date:
June 08, 2006
Filing Date:
November 19, 2004
Export Citation:
Assignee:
MITSUBISHI ELECTRIC ENG
International Classes:
G08B13/19; G08B13/00; G08B15/00
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Hideaki Tazawa
Hamada Hatsune
Konobu Kato
Hideaki Tazawa
Hamada Hatsune