Title:
侵入検出センサ
Document Type and Number:
Japanese Patent JP6739415
Kind Code:
B2
Abstract:
To provide an intrusion detection sensor capable of reliably detecting an intruder while preventing a decrease in detection sensitivity of an adjacent electric field.SOLUTION: An intrusion detection sensor 1 has multiple detection lines 10 neighboring to each other excluding a corner of the monitoring area E in which the distance between the end portions on the segment boundary side of the respective detection lines 10 is set to a width through which at least person cannot pass. A non-conductive cable 32 substantially nonconductive and non-stretchable are used as the tension member 30. With this, the detection sensitivity is prevented from degrading at the segment boundaries between sensors and intruders can be reliably detected.SELECTED DRAWING: Figure 2
Inventors:
Masahiko Suzuki
Hideaki Kaneko
Hideaki Kaneko
Application Number:
JP2017192840A
Publication Date:
August 12, 2020
Filing Date:
October 02, 2017
Export Citation:
Assignee:
Japan Nuclear Protection System Co., Ltd.
International Classes:
G01V3/08; G08B13/26
Domestic Patent References:
| JP63139691U | ||||
| JP62177700A | ||||
| JP1006478A | ||||
| JP2001153964A | ||||
| JP9237389A | ||||
| JP2013003947A | ||||
| JP7114675A | ||||
| JP2008035953A | ||||
| JP2004332278A |
Foreign References:
| US4174518 |
Attorney, Agent or Firm:
Norimitsu Nishimura
Noriyuki Suzuki
Noriyuki Suzuki