JPS6112082U

JPS6112082U - Intrusion detection device

Info

Publication number: JPS6112082U
Application number: JP9658084U
Authority: JP
Inventors: 正己牧野
Original assignee: セルコ株式会社
Priority date: 1984-06-26
Filing date: 1984-06-26
Publication date: 1986-01-24
Also published as: JPH026383Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案の侵入検知装置の一実施例の設置状態
説明図、第２図は第１図に示す実施例装置の受光ユニッ
トの構成説明図、第３図は他の実施例の第１図相当図、
第４図は第３図に示す実施例装置の第２図相当図、第５
図は従来の侵入検知装置の一例の第１図相当図である。１，１１・・・侵入検知装置、２，１２・・・近赤外線
投光ユニット、３．１３・・・受光ユニット、４ａ，４
ｂ・・・レンズ、５・・・第１のフォトダイオード、６
・・・第２のフォトダイオード、７．１７・・・アンプ
、８，１８・・・レベル判定回路、１４・・・反射ミラ
ー、１５・・・第１のフォトトランジスタ、１６・・・
第２のフォトトランジスタ、Ｒ・・・負荷抵抗、Ｂ・・
・近赤外線ヒーム、Ｚ，，２！２，Ｚ３，Ｚ４，Ｚ５，
ｚ８・・・受光ゾーン、Ｄ・・・自動ドア。FIG. 1 is an explanatory diagram of the installation state of one embodiment of the intrusion detection device of this invention, FIG. 2 is an explanatory diagram of the configuration of the light receiving unit of the embodiment device shown in FIG. 1, and FIG. 1 figure equivalent figure,
Fig. 4 is a diagram corresponding to Fig. 2 of the embodiment device shown in Fig. 3;
The figure is a diagram corresponding to FIG. 1 of an example of a conventional intrusion detection device. 1, 11... Intrusion detection device, 2, 12... Near-infrared emitter unit, 3.13... Light receiving unit, 4a, 4
b... Lens, 5... First photodiode, 6
...Second photodiode, 7.17...Amplifier, 8, 18...Level judgment circuit, 14...Reflection mirror, 15...First phototransistor, 16...
Second phototransistor, R...Load resistance, B...
・Near infrared beam, Z,,2!2,Z3,Z4,Z5,
z8...Light receiving zone, D...Automatic door.

Claims

[Scope of utility model registration request]

a near-infrared light projector, a first one that outputs a detection signal in the positive direction when near-infrared light is incident; a second detection means that outputs a detection signal in the negative direction when near-infrared rays are incident thereon; and a second detection means that has a plurality of light-receiving zones and approximately every other light-receiving zone or part or part of the light-receiving zone. Near infrared rays reflected by an object penetrating the entire area are guided to the first light emitting means, and near infrared rays reflected by an object penetrating part or all of the other light receiving zones are guided to the second detection means. An intrusion detection device characterized by comprising: optical means for guiding, and addition means for adding output signals of the first detection means and the second detection means.