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JP2004030022A - Invasion detection system - Google Patents

Invasion detection system Download PDF

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Publication number
JP2004030022A
JP2004030022A JP2002182898A JP2002182898A JP2004030022A JP 2004030022 A JP2004030022 A JP 2004030022A JP 2002182898 A JP2002182898 A JP 2002182898A JP 2002182898 A JP2002182898 A JP 2002182898A JP 2004030022 A JP2004030022 A JP 2004030022A
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JP
Japan
Prior art keywords
monitoring area
person
camera
tag
detection system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002182898A
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Japanese (ja)
Inventor
Keigo Takeuchi
竹内啓五
Tsutomu Yamamoto
山本 力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimizu Construction Co Ltd
Shimizu Corp
Original Assignee
Shimizu Construction Co Ltd
Shimizu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimizu Construction Co Ltd, Shimizu Corp filed Critical Shimizu Construction Co Ltd
Priority to JP2002182898A priority Critical patent/JP2004030022A/en
Publication of JP2004030022A publication Critical patent/JP2004030022A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To automatically detect information on an invader within a monitoring area. <P>SOLUTION: The invasion detection system is provided with: a number of leader antennas 3 buried under the floor within a monitoring area 1; a camera 5 for picking up images within the monitoring area; an ID tag 6 carried with a person who enters and leaves the monitoring area; and an arithmetic processing unit 4 for judging whether a person enters/leaves the monitoring area or not based upon detecting signals from the leader antennas and image pickup information from the camera. When an image of a person is picked up on the camera in spite of no reaction of the ID tag, it is detected as invasion of an unauthorized person. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】本発明は、施設の安全性を確保する監視手段に用いられる侵入検知システムに関する。
【0002】
【従来の技術】従来、施設の安全性を確保する手段として、所定の監視エリアをカメラにより撮像し、その画像信号を監視センターに伝送し、これをモニタ画面に表示させて侵入者等の監視を行うシステムが知られている。
【0003】しかしながら、従来の監視システムにおいては、カメラに撮像されている対象が、誰であるか、何であるかを検視することは非常に困難である。カメラで判断できることは、視野内に何か動きがある等の変化を認識する程度であり、動いたものが何であるかについて判定することは、高度な画像処理技術を必要とし、また、一般的に高価かつ複雑な演算・処理系が必要になる。
【0004】一方、別の技術に代表されるような個体識別用のタグが知られている。これは、検視したい対象に取り付け、専用のリーダー(アンテナ)により、ID(識別情報)を読みとることにより、各個体、人の場合には誰であるかを識別することができる。現在広く利用されている技術では数10cm程度の検知範囲(近距離タイプ)であるが、近年は数10mの検知範囲(中距離タイプ)の製品も販売されつつあり、利用の拡大が見込まれている。
【0005】
【発明が解決しようとする課題】しかしながら、個体識別用のタグによる方式は、タグを持っていない人は検知することはできないという問題を有し、また、特に中距離タイプのタグの場合、カメラと同程度の検知範囲を有し、そこにいる人を検知するのに有効であるが、検知した人がどこにいるかを正確に(数cm単位のレベルで)把握することは困難であるという問題を有している。
【0006】本発明は、上記従来の問題を解決するものであって、監視エリア内の侵入者の情報を自動的に検知することができる侵入検知システムを提供することを目的とする。
【0007】
【課題を解決するための手段】上記目的を達成するために、本発明の侵入検知システムは、監視エリアの床面に埋設される多数のリーダーアンテナと、監視エリアを撮像するカメラと、監視エリア内に出入りする人に携帯されるIDタグと、前記リーダーアンテナからの検知信号とカメラからの撮像情報に基づいて、監視エリア内の人の出入りの判定処理を行う演算処理装置とを備え、IDタグの反応がないにもかかわらず、人がカメラ上に撮像された場合は、認証をしていない人の侵入として検知することを特徴とする。
【0008】
【発明の実施の形態】以下、本発明の実施の形態を図面を参照しつつ説明する。図1は、本発明の侵入検知システムの1実施形態を示し、図1(A)はシステム構成図、図1(B)は概念図、図2および図3は、本発明の作用を説明するための図である。
【0009】監視エリア1内の床面2には、多数のリーダーアンテナ(受信器)3が埋設されている。このリーダーアンテナ3は、比較的細かい間隔で配置され、その間隔は人の検知を行いたい位置分解能によって決まり、一例として1m毎に格子状に配置される。各リーダーアンテナ3は、演算処理装置4に接続されている。
【0010】一方、監視エリア1を撮像可能な位置には、カメラ5が設置され演算処理装置4に接続されている。監視エリア1内を出入りする人、Aさん、Bさんは、IDタグ(識別情報発信器)6を携帯している。
【0011】演算処理装置4は、リーダーアンテナ3からの検知信号と、カメラ5からの撮像情報に基づいて、監視エリア1内の人の出入りの判定処理を行い、その結果をディスプレイ等の表示装置7に出力するように構成されている。
【0012】IDタグ6による人の検知は、IDタグの発信信号に対して最も強い信号強度を受信したリーダーアンテナ3の位置に、そのIDタグ6を携帯している人がいると判断する。例えば、図1(B)において、A行2列にAさん、D行3列にBさんがいると判断する。
【0013】図2に示すように、この様子をカメラ5で撮像した場合、検知したリーダーアンテナ3の位置を元に写った人の位置とを照合することにより、写っている人が誰であるかを判定することができる。表示装置7の画面上には人が写っている様子のみになるが、リーダーアンテナ3の画面上での位置が特定できるため、検知したIDタグ検知情報に基づいて、そこに写っている人の同定をすることができる。
【0014】また、図3に示すように、カメラ5に写っていることが確認されたにもかかわらず、IDタグ6の反応が得られなかった場合は、何らかのイレギュラーな人の侵入があったと判断することができる。すなわち、IDタグ6の反応がないにもかかわらず、人がカメラ5上に撮像された場合は、認証をしていない人の侵入として検知することができる。
【0015】
【発明の効果】以上の説明から明らかなように、本発明によれば、自動的に侵入者のIDを確認できるだけではなく、不審者の侵入を自動的に検知することができ、施設の安全性向上に寄与することができる。
【図面の簡単な説明】
【図1】本発明の侵入検知システムの1実施形態を示し、図1(A)はシステム構成図、図1(B)は概念図である。
【図2】本発明の作用を説明するための図である。
【図3】本発明の作用を説明するための図である。
【符号の説明】
1…監視エリア
3…リーダーアンテナ
4…演算処理装置
5…カメラ
6…IDタグ
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intrusion detection system used for monitoring means for ensuring safety of facilities.
[0002]
2. Description of the Related Art Conventionally, as means for ensuring the safety of facilities, a predetermined monitoring area is imaged by a camera, the image signal is transmitted to a monitoring center, and this is displayed on a monitor screen to monitor an intruder or the like. There are known systems for performing such operations.
[0003] However, in the conventional surveillance system, it is very difficult to inspect who or what is being imaged by the camera. The only thing that can be judged by the camera is to recognize a change such as a movement in the visual field, and to judge what is moving requires advanced image processing technology, Requires an expensive and complicated arithmetic and processing system.
[0004] On the other hand, tags for individual identification as represented by another technique are known. In this case, each individual or person can be identified by reading the ID (identification information) using a dedicated reader (antenna) attached to a target to be inspected. Although the detection range is about several tens of centimeters (short-distance type) in the technology widely used at present, products with a detection range of several tens of meters (middle-distance type) are being sold in recent years. I have.
[0005]
However, the method using the tag for identifying an individual has a problem that a person who does not have the tag cannot detect the tag. In particular, in the case of a tag of a medium distance type, the camera is not used. Although it has a detection range similar to that of the above, it is effective for detecting people who are there, but it is difficult to know exactly where the detected person is (at the level of several cm). have.
An object of the present invention is to solve the above-mentioned conventional problem, and an object of the present invention is to provide an intrusion detection system capable of automatically detecting information of an intruder in a monitoring area.
[0007]
In order to achieve the above object, an intrusion detection system according to the present invention comprises a plurality of reader antennas embedded on the floor of a monitoring area, a camera for imaging the monitoring area, An ID tag carried by a person entering and exiting the inside, and an arithmetic processing unit that performs a process of determining whether a person in the monitoring area enters or exits based on a detection signal from the reader antenna and imaging information from a camera. When a person is imaged on the camera despite the absence of a tag response, it is detected as an intrusion of an unauthenticated person.
[0008]
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of an intrusion detection system according to the present invention. FIG. 1 (A) is a system configuration diagram, FIG. 1 (B) is a conceptual diagram, and FIG. 2 and FIG. 3 explain the operation of the present invention. FIG.
[0009] A number of reader antennas (receivers) 3 are embedded in the floor 2 in the monitoring area 1. The reader antennas 3 are arranged at relatively small intervals, and the intervals are determined by a position resolution at which a person is desired to be detected. Each reader antenna 3 is connected to a processing unit 4.
On the other hand, a camera 5 is installed at a position where the monitoring area 1 can be imaged and connected to the arithmetic processing unit 4. Persons A and B who enter and exit the monitoring area 1 carry an ID tag (identification information transmitter) 6.
The arithmetic processing unit 4 performs a process of determining whether or not a person in the monitoring area 1 has entered or exited based on the detection signal from the reader antenna 3 and the imaging information from the camera 5 and displays the result on a display device such as a display. 7.
The detection of a person by the ID tag 6 determines that there is a person carrying the ID tag 6 at the position of the reader antenna 3 which has received the strongest signal strength with respect to the transmission signal of the ID tag. For example, in FIG. 1B, it is determined that there is A in row A, column 2 and B in row D, column 3.
As shown in FIG. 2, when this situation is imaged by the camera 5, the detected person's position is compared with the person's position on the basis of the detected position of the reader antenna 3 to find out who the person is. Can be determined. Although only the appearance of a person is displayed on the screen of the display device 7, since the position of the reader antenna 3 on the screen can be specified, the position of the person reflected there is detected based on the detected ID tag detection information. Identification can be performed.
As shown in FIG. 3, if the response of the ID tag 6 is not obtained even though it is confirmed that the image is captured by the camera 5, there is some irregular person intrusion. Can be determined. That is, when a person is imaged on the camera 5 even though there is no response from the ID tag 6, it can be detected as intrusion of a person who has not been authenticated.
[0015]
As is clear from the above description, according to the present invention, not only can the ID of an intruder be automatically confirmed, but also the intrusion of a suspicious person can be automatically detected, and the safety of the facility can be improved. It can contribute to improvement of the performance.
[Brief description of the drawings]
1 shows an embodiment of an intrusion detection system according to the present invention, FIG. 1 (A) is a system configuration diagram, and FIG. 1 (B) is a conceptual diagram.
FIG. 2 is a diagram for explaining the operation of the present invention.
FIG. 3 is a diagram for explaining the operation of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Monitoring area 3 ... Reader antenna 4 ... Processing unit 5 ... Camera 6 ... ID tag

Claims (1)

監視エリアの床面に埋設される多数のリーダーアンテナと、監視エリアを撮像するカメラと、監視エリア内に出入りする人に携帯されるIDタグと、前記リーダーアンテナからの検知信号とカメラからの撮像情報に基づいて、監視エリア内の人の出入りの判定処理を行う演算処理装置とを備え、IDタグの反応がないにもかかわらず、人がカメラ上に撮像された場合は、認証をしていない人の侵入として検知することを特徴とする侵入検知システム。Numerous reader antennas buried on the floor of the monitoring area, cameras for imaging the monitoring area, ID tags carried by people entering and leaving the monitoring area, detection signals from the reader antenna, and imaging from the camera An arithmetic processing unit that performs a process of determining whether a person in the monitoring area enters or exits based on the information, and performs authentication if the person is imaged on the camera despite no response from the ID tag. An intrusion detection system that detects intrusions by people who do not.
JP2002182898A 2002-06-24 2002-06-24 Invasion detection system Pending JP2004030022A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006311111A (en) * 2005-04-27 2006-11-09 Daikin Ind Ltd Position sensing system and method for sensing position
WO2006123629A1 (en) * 2005-05-16 2006-11-23 Dai Nippon Printing Co., Ltd. Imaging information management system
JP2007004305A (en) * 2005-06-21 2007-01-11 Lintec Corp Approacher monitoring device
JP2007213224A (en) * 2006-02-08 2007-08-23 Sogo Keibi Hosho Co Ltd Monitoring system and monitoring method
JP2007226351A (en) * 2006-02-21 2007-09-06 Sogo Keibi Hosho Co Ltd Surveillance system and surveillance method
WO2009113265A1 (en) * 2008-03-11 2009-09-17 パナソニック株式会社 Tag sensor system and sensor device, and object position estimating device and object position estimating method
GB2462567B (en) * 2007-05-15 2011-04-06 Ipsotek Ltd Data processing apparatus
JP2020102817A (en) * 2018-12-25 2020-07-02 凸版印刷株式会社 Monitor target identification apparatus, monitor target identification system, and monitor target identification method

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006311111A (en) * 2005-04-27 2006-11-09 Daikin Ind Ltd Position sensing system and method for sensing position
CN101176345B (en) * 2005-05-16 2013-06-05 大日本印刷株式会社 Imaging information management system
US9262897B2 (en) 2005-05-16 2016-02-16 Dai Nippon Printing Co., Ltd. Image information management system
JP2006318351A (en) * 2005-05-16 2006-11-24 Dainippon Printing Co Ltd Photograph information management system
KR101201113B1 (en) 2005-05-16 2012-11-20 다이니폰 인사츠 가부시키가이샤 Imaging information management system
JP4697942B2 (en) * 2005-05-16 2011-06-08 大日本印刷株式会社 Shooting information management system
WO2006123629A1 (en) * 2005-05-16 2006-11-23 Dai Nippon Printing Co., Ltd. Imaging information management system
JP2007004305A (en) * 2005-06-21 2007-01-11 Lintec Corp Approacher monitoring device
JP2007213224A (en) * 2006-02-08 2007-08-23 Sogo Keibi Hosho Co Ltd Monitoring system and monitoring method
JP2007226351A (en) * 2006-02-21 2007-09-06 Sogo Keibi Hosho Co Ltd Surveillance system and surveillance method
US9836933B2 (en) 2007-05-15 2017-12-05 Ipsotek Ltd. Data processing apparatus to generate an alarm
US8305441B2 (en) 2007-05-15 2012-11-06 Ipsotek Ltd. Data processing apparatus
GB2462567B (en) * 2007-05-15 2011-04-06 Ipsotek Ltd Data processing apparatus
US8547436B2 (en) 2007-05-15 2013-10-01 Ispotek Ltd Data processing apparatus
WO2009113265A1 (en) * 2008-03-11 2009-09-17 パナソニック株式会社 Tag sensor system and sensor device, and object position estimating device and object position estimating method
JP5385893B2 (en) * 2008-03-11 2014-01-08 パナソニック株式会社 POSITIONING SYSTEM AND SENSOR DEVICE
US8243136B2 (en) 2008-03-11 2012-08-14 Panasonic Corporation Tag sensor system and sensor device, and object position estimating device and object position estimating method
JP2020102817A (en) * 2018-12-25 2020-07-02 凸版印刷株式会社 Monitor target identification apparatus, monitor target identification system, and monitor target identification method

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