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JPH07160956A - Intrusion supervisory equipment - Google Patents

Intrusion supervisory equipment

Info

Publication number
JPH07160956A
JPH07160956A JP5311535A JP31153593A JPH07160956A JP H07160956 A JPH07160956 A JP H07160956A JP 5311535 A JP5311535 A JP 5311535A JP 31153593 A JP31153593 A JP 31153593A JP H07160956 A JPH07160956 A JP H07160956A
Authority
JP
Japan
Prior art keywords
distance
alarm
laser
angle
reflected
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.)
Granted
Application number
JP5311535A
Other languages
Japanese (ja)
Other versions
JP2817599B2 (en
Inventor
Masahiro Ozaki
正弘 尾崎
Jun Ota
純 太田
Shigeru Murata
茂 村田
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP5311535A priority Critical patent/JP2817599B2/en
Publication of JPH07160956A publication Critical patent/JPH07160956A/en
Application granted granted Critical
Publication of JP2817599B2 publication Critical patent/JP2817599B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Jib Cranes (AREA)
  • Burglar Alarm Systems (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

PURPOSE:To provide instrusion supervisory equipment in which supervision by a 2-dimension alarm zone (alarm area) is executed and a position, a size and an alarm passing time of an intrusion object are set as an alarm raising condition parameter. CONSTITUTION:An intrusion object is sensed by detecting a reflected wave 25 of a laser beam emitted from a laser oscillator 2 by a light receiving element 4 and the distance to the intrusion object is decided based on a time difference between the light emission and the light reception in addition. Then the laser is scanned in space by the rotation of a scanning mirror 5 driven by a scanning motor 10 to realize areal warning. Simultaneously an emission azimuth for each laser pulse is detected by an angle detector 11 installed on a rotary shaft 16. A discrimination arithmetic section 12 and a condition setting section 14 are used to discriminate the necessity of warning when the object is sensed, and distance data, azimuth data and a continuous detection time are adopted for discrimination data. Thus, a position, a size and an alarm area passing time of an instrusion object are set as an alarm raising condition parameter.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は侵入監視装置に関し、特
にレーザ光を応用した境界面通過監視装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intrusion monitoring device, and more particularly to a boundary surface passage monitoring device using laser light.

【0002】[0002]

【従来の技術】従来の一般的なレーザ応用侵入監視装置
は図3に示すように、レーザ発射器15とレーザ受光器
16とを別々のハードウェアとして有しており、2装置
を1組として使用している。レーザ発射器15より発射
されたレーザ光は継続的にレーザ受光器16に入射さ
れ、侵入物によりレーザ光が遮られたとき、すなわちレ
ーザ受光器16へのレーザ光の入射が停止したときに警
報発令器17により警報が発せられる。
2. Description of the Related Art As shown in FIG. 3, a conventional general laser application intrusion monitoring system has a laser emitting device 15 and a laser receiving device 16 as separate hardware. I'm using it. The laser light emitted from the laser emitter 15 is continuously incident on the laser light receiver 16, and an alarm is issued when the laser light is blocked by an intruder, that is, when the laser light incidence on the laser light receiver 16 is stopped. An alarm is issued by the sounding device 17.

【0003】次にレーザを走査させる方式の従来の侵入
監視装置の一例を図4に示す(特開昭56−10559
3)。この侵入監視装置では、放射源18からパルスレ
ーザ光を連続的に発射し、それを空間に走査させるとと
もに、空間で反射された反射レーザ光を受信器19によ
り検出し、受信器19から出力される輝度等のデータ
を、位置センサ20による放射角データをアドレスとし
て、メモリ21に格納する。同時に、走査1回転毎に同
一放射角における受信データを比較器22により前走査
時のデータと比較し、それらの間に差異がある場合に警
報を発する。
FIG. 4 shows an example of a conventional intrusion monitoring device of a laser scanning type (Japanese Patent Laid-Open No. 56-10559).
3). In this intrusion monitoring device, a pulsed laser beam is continuously emitted from a radiation source 18 to scan it in space, and a reflected laser beam reflected in the space is detected by a receiver 19 and output from the receiver 19. The brightness and other data are stored in the memory 21 using the radiation angle data from the position sensor 20 as an address. At the same time, the received data at the same radiation angle is compared with the data at the time of the previous scan by the comparator 22 every scanning one rotation, and an alarm is issued if there is a difference between them.

【0004】[0004]

【発明が解決しようとする課題】図3に示した従来の一
般的な侵入監視装置においては、監視区域の特定が容易
である反面、警戒領域が1次元の線となり、警戒線(レ
ーザ光径路)に触れないで侵入することも比較的容易で
あった。すなわち、より確実な侵入監視を行うにあたっ
ては装置(レーザ発射器、受光器の組)を複数個設置す
る必要があった。また、図4に示した走査型の従来装置
においては、図3の方式とは異なり、面による監視が可
能であり、侵入検知の回避は困難であるが、他方この図
4の装置では反射光を検出できるすべての範囲が必然的
に警戒領域となってしまう。そこで、警戒範囲を限定し
て使用する装置、例えばクレーンが送電線へ接近したと
きに警報を発生する装置では、警戒領域が上空にのみで
あるから、図4の装置は適さない。また、図4の装置は
1走査毎にメモリを書き換える方式であるから、この侵
入監視装置では虫鳥等による誤警報を防止するために警
戒面の通過時間に条件を設けるとはできなかった。
In the conventional general intrusion monitoring apparatus shown in FIG. 3, it is easy to specify the surveillance area, but the warning area is a one-dimensional line, and the warning line (laser light path) is used. ) Was relatively easy to enter without touching. That is, in order to perform more reliable intrusion monitoring, it is necessary to install a plurality of devices (a set of a laser emitter and a light receiver). Further, in the conventional scanning type device shown in FIG. 4, unlike the system shown in FIG. 3, surface monitoring is possible and it is difficult to avoid intrusion detection. On the other hand, in the device shown in FIG. The range that can be detected inevitably becomes a warning area. Therefore, the device of FIG. 4 is not suitable for a device that is used with a limited warning range, for example, a device that issues a warning when a crane approaches a power transmission line, because the warning area is only in the sky. Further, since the device of FIG. 4 is a system in which the memory is rewritten every scanning, this intrusion monitoring device cannot set a condition for the passage time of the warning surface in order to prevent a false alarm due to insects and the like.

【0005】このように、従来の侵入監視装置には、警
戒領域および警戒対象物の限定に関し解決すべき課題が
あった。
As described above, the conventional intrusion monitoring device has a problem to be solved regarding the limitation of the alarm area and the alarm object.

【0006】[0006]

【課題を解決するための手段】前述の課題を解決するた
めに本発明が提供する手段は、高い繰り返し周波数で発
光するレーザ発振器と、このレーザ発振器から出射され
るレーザ光を該レーザ光の入射光軸とは異なる方向に反
射する平面反射鏡と、この平面反射鏡の反射面の法線に
対して角度をなす軸を中心に該反射鏡を回転させるモー
タと、前記反射鏡で反射され、空中の物体で反射され、
再び前記反射鏡で反射されたレーザ光を受光する反射光
受光素子と、前記レーザ発振器から前記レーザ光が出射
された時から前記反射光受光素子で反射レーザ光が検知
されるまでの時間を計測し前記空中物体までの距離を演
算する距離演算部と、前記平面反射鏡の回転の角度を検
出する角度検出器と、前記距離演算部で前記距離が演算
された前記空中物体につき警報を発する条件を少なくと
も距離及び角度において設定する条件設定部と、前記距
離演算部で演算された距離と前記角度検出部で検出され
た角度とが前記条件設定部で設定された距離及び角度の
条件に合致するときに前記空中物体を侵入物と判定し警
報の発令をする判定部と、前記判定部により前記警報が
発令されたとき警報音を発する警報部とを有することを
特徴とする侵入監視装置である。
Means for Solving the Problems The means provided by the present invention for solving the above-mentioned problems are a laser oscillator that emits light at a high repetition frequency, and a laser beam emitted from this laser oscillator that is incident on the laser beam. A plane reflecting mirror that reflects in a direction different from the optical axis, a motor that rotates the reflecting mirror about an axis that forms an angle with respect to the normal line of the reflecting surface of the plane reflecting mirror, and is reflected by the reflecting mirror. Reflected by objects in the air,
A reflected light receiving element that receives the laser light reflected by the reflecting mirror again, and the time from when the laser light is emitted from the laser oscillator to when the reflected laser light is detected by the reflected light receiving element is measured. A distance calculation unit that calculates the distance to the aerial object, an angle detector that detects the angle of rotation of the plane reflecting mirror, and a condition for issuing an alarm for the aerial object for which the distance is calculated by the distance calculation unit At least in the distance and angle, and the distance calculated by the distance calculator and the angle detected by the angle detector match the distance and angle conditions set by the condition setter. An intrusion monitor characterized by having a judging unit which sometimes judges the aerial object as an intruder and issues an alarm, and an alarm unit which emits an alarm sound when the alarm is issued by the judging unit. It is a device.

【0007】[0007]

【実施例】次に本発明について図面を参照して説明す
る。図1は本発明の一実施例の構成を示すブロック図で
ある。レーザ制御部1の制御により、半導体レーザでな
るレーザ発振器2は、10kHzの繰り返し周波数で連
続的にパルスレーザ光を出射する。また、このときフォ
トダイオード3(前述の漏れ光受光素子に相当)はレー
ザ発振器2の漏れ光を受け、レーザ発振器2のレーザの
発振に同期した発光同期パルスを出力する。パルスレー
ザ光は発光光学系4を経て走査ミラー5(前述の平面反
射鏡に相当)によりビーム方向を制御され空間に出力さ
れる。空間に発射されたレーザ光はその光路上に物体
(前述の空中物体に相当)があった場合に反射され、そ
の反射レーザ光の一部が走査ミラー5に到達し、走査ミ
ラー5、受光光学系6を径て、受光素子7(前述の反射
受光素子に相当)に入射する。受光素子7は、受光した
レーザ光を検出し、受光同期パルスを発生させる。距離
演算部8は、発光同期パルスの受信から受光同期パルス
の受信までの時間を高速カウンタにより計測し、その時
間を距離に換算し、レーザ光反射物の距離データとして
出力する。走査ミラー5は、モータ駆動部9により駆動
される走査モータ10により等速に回転され、レーザ光
を空間走査させる。走査モータ10が走査ミラー5を回
転させる軸16は発光光学系4の光軸に平行である。走
査モータ10の軸16には角度検出器11が取り付けら
れており、これにより走査ミラー5の回転の角度すなわ
ち、レーザ光の発射方位角が得られる。
The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. Under the control of the laser control unit 1, the laser oscillator 2 formed of a semiconductor laser continuously emits pulsed laser light at a repetition frequency of 10 kHz. At this time, the photodiode 3 (corresponding to the leaked light receiving element described above) receives the leaked light of the laser oscillator 2 and outputs a light emission synchronization pulse synchronized with the oscillation of the laser of the laser oscillator 2. The pulsed laser light passes through the light emission optical system 4 and the beam direction thereof is controlled by the scanning mirror 5 (corresponding to the above-mentioned plane reflecting mirror) and is output to the space. The laser beam emitted to the space is reflected when an object (corresponding to the above-mentioned aerial object) is present on the optical path, and a part of the reflected laser beam reaches the scanning mirror 5, the scanning mirror 5, the light receiving optical system. The system 6 is radiated and is incident on the light receiving element 7 (corresponding to the reflection light receiving element described above). The light receiving element 7 detects the received laser light and generates a light reception synchronization pulse. The distance calculator 8 measures the time from the reception of the light emission synchronization pulse to the reception of the light reception synchronization pulse with a high-speed counter, converts the time into a distance, and outputs it as distance data of the laser light reflector. The scanning mirror 5 is rotated at a constant speed by a scanning motor 10 driven by a motor driving unit 9, and spatially scans the laser light. An axis 16 on which the scanning motor 10 rotates the scanning mirror 5 is parallel to the optical axis of the light emitting optical system 4. An angle detector 11 is attached to the shaft 16 of the scanning motor 10 to obtain the angle of rotation of the scanning mirror 5, that is, the emission azimuth angle of the laser light.

【0008】距離演算部8および角度検出器11の出力
からレーザ走査面内の侵入物の距離データ及び方位角デ
ータが発振パルス毎に得られる。これらデータは判定部
12に供給される。判定部12はこれらデータより警報
の要否の判定を行い、警報の必要があると判定した場合
には警報すべき旨の発令を警報部13に送る。警報部1
3は判定部12から警報命令を受けると、警報音をスピ
ーカにより発生する。条件設定部14は侵入物の位置、
寸法(いずれも距離データ、角度データより一意に決ま
る)及び警戒面通過時間に関し、警報発令のための条件
を設定する。判定部12は条件設定部14から与えられ
る条件情報に基づき、警報の要否を判定する。
From the outputs of the distance calculator 8 and the angle detector 11, the distance data and the azimuth angle data of the intruding object in the laser scanning plane are obtained for each oscillation pulse. These data are supplied to the determination unit 12. The determination unit 12 determines whether or not an alarm is necessary based on these data, and when it is determined that the alarm is necessary, the determination unit 12 sends a warning to the alarm unit 13 that the alarm should be issued. Alarm unit 1
When 3 receives the alarm command from the determination unit 12, the alarm sound is generated from the speaker. The condition setting unit 14 determines the position of the intruder,
Set the conditions for issuing a warning regarding the dimensions (each is uniquely determined from distance data and angle data) and the warning surface transit time. The determination unit 12 determines whether or not an alarm is necessary, based on the condition information provided by the condition setting unit 14.

【0009】条件設定部14は記憶装置(メモリ)およ
び条件入力回路を備えてなる。条件入力回路の距離ボタ
ン、角度ボタン、寸法ボタン及び警戒面通過時間ボタン
により、侵入物の距離、角度、寸法および警戒面通過時
間において警報を発生すべき範囲を手動で入力する。そ
の範囲が警報条件として記憶装置に記憶される。ここ
で、警戒面とはレーザ光ビームで走査される面のうち、
距離および角度において警報を発生すべきであるとして
設定した領域である。警戒面通過時間は、物体がその警
戒面に触れてから警戒面を離れるまでの時間である。判
定部12は、距離データおよび角度データから警戒面に
物体が触れたこと及びその物体の寸法並びに警戒面通過
時間を算出し、条件設定部14から与えられる警報条件
と比較し、その警報条件に合致するときに警報を発令す
る。
The condition setting unit 14 comprises a storage device (memory) and a condition input circuit. The distance button, the angle button, the size button, and the alarm surface transit time button of the condition input circuit are used to manually input the distance, angle, size, and alarm surface transit time of an intruder. The range is stored in the storage device as an alarm condition. Here, the warning surface is one of the surfaces scanned by the laser light beam,
It is an area set as an alarm should be issued at a distance and an angle. The security plane passage time is the time from when the object touches the security surface until it leaves the security surface. The determination unit 12 calculates from the distance data and the angle data that an object touches the security surface, the size of the object, and the security surface passage time, and compares it with the alarm condition given from the condition setting unit 14 to determine the alarm condition. An alarm is issued when they match.

【0010】以上に述べた実施例の構成により、実施例
を高圧線近傍でクレーンによる作業が行われる場合に適
用すれば、クレーンが高圧線にどの程度に接近したかを
誤りなく検出できる。特に、距離および角度で定まる警
報領域を設定できるから、高圧線に影響を与えるおそれ
のない離れた位置のクレーン等を監視対象物から除ける
から、誤警報の発生を有効に防げる。また、侵入物の寸
法や警戒面通過時間も警報条件とすることができるか
ら、鳥や昆虫をクレーンから識別でき、この機能も誤警
報の発生を低減するのに貢献する。
With the configuration of the above-described embodiment, if the embodiment is applied to a case where a crane works near a high-voltage line, it is possible to accurately detect how close the crane is to the high-voltage line. In particular, since the alarm area defined by the distance and the angle can be set, a crane or the like at a remote position that does not affect the high-voltage line can be excluded from the monitored object, so that the false alarm can be effectively prevented. In addition, the size of the intruding object and the passage time of the warning surface can be used as an alarm condition, so that birds and insects can be identified from the crane, and this function also contributes to reducing the occurrence of false alarms.

【0011】[0011]

【発明の効果】以上に説明したように、本発明は、レー
ザを空間に放射し、その反射光を侵入物の検出に使用
し、かつレーザを空間走査させる構成としたため、1つ
の装置により、2次元の警戒面における侵入監視を行う
ことができる。
As described above, according to the present invention, the laser is emitted into the space, the reflected light is used for detecting the intruding object, and the laser is spatially scanned. Intrusion monitoring can be performed on a two-dimensional security surface.

【0012】また、反射レーザ光が発射レーザ光から遅
れた時間を計測することにより、侵入物の距離を特定で
き、走査ミラー軸に角度検出器を設置する構成としたた
め、侵入物の方位角を知ることができる。その距離およ
び方位角から、検地した侵入物の位置を特定できる。そ
こで、本発明ではこの位置情報を警報発令条件に使うこ
とにより、警戒面内で監視有効領域(実際侵入物があれ
ば警報を発する領域)を任意に設定できる。監視有効領
域設定例を図2に示す。図2(a)には図1の実施例で
設定できる最大有効監視領域101を示し、図2(b)
は条件設定部14で設定した有効監視領域102を示
す。φは走査ミラー5の回転角度である。さらには、距
離データ、方位角データにより侵入物のおおまかな寸法
が把握でき、加えて侵入物がレーザ走査何回に渡って検
知されたかを計数することにより侵入物の警戒面通過時
間を知ることが可能であるから、これらを警報発生の条
件に採用することで、例えば虫や鳥等による誤警報を防
止できる。
Further, by measuring the time when the reflected laser light is delayed from the emitted laser light, the distance of the intruding object can be specified, and the angle detector is installed on the axis of the scanning mirror. I can know. From the distance and the azimuth, the position of the intruding object detected can be specified. Therefore, in the present invention, by using this position information as an alarm issuing condition, it is possible to arbitrarily set a monitoring effective area (an area where an alarm is actually issued if there is an intruder) on the alarm surface. FIG. 2 shows an example of setting the monitoring effective area. FIG. 2A shows the maximum effective monitoring area 101 that can be set in the embodiment of FIG. 1, and FIG.
Indicates the effective monitoring area 102 set by the condition setting unit 14. φ is the rotation angle of the scanning mirror 5. Furthermore, the approximate size of the intruding object can be grasped from the distance data and the azimuth data, and in addition, the number of times the intruding object is detected by the laser scanning can be counted to know the transit time of the intruding object on the warning surface. Therefore, it is possible to prevent erroneous alarms due to insects, birds, etc. by adopting these as conditions for alarm generation.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の構成を示すブロック図。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

【図2】本発明における有効監視領域設定例を示す図。FIG. 2 is a diagram showing an example of setting an effective monitoring area according to the present invention.

【図3】従来技術による侵入監視装置の概念図。FIG. 3 is a conceptual diagram of a conventional intrusion monitoring device.

【図4】別の従来技術による侵入監視装置の構成を示す
ブロック図。
FIG. 4 is a block diagram showing a configuration of an intrusion monitoring device according to another conventional technique.

【符号の説明】[Explanation of symbols]

1 レーザ制御部 2 レーザ発振器 3 フォトダイオード 4 発光光学系 5 走査ミラー 6 受光光学系 7 受光素子 8 距離演算部 9 モータ駆動部 10 走査モータ 11 角度検出器 12 判定演算部 13 警報発生部 14 条件設定部 1 Laser Control Section 2 Laser Oscillator 3 Photodiode 4 Light Emitting Optical System 5 Scanning Mirror 6 Light Receiving Optical System 7 Light Receiving Element 8 Distance Calculator 9 Motor Drive 10 Scan Motor 11 Angle Detector 12 Judgment Calculator 13 Alarm Generator 14 Condition Setting Department

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 高い繰り返し周波数で発光するレーザ発
振器と、このレーザ発振器から出射されるレーザ光を該
レーザ光の入射光軸とは異なる方向に反射する平面反射
鏡と、この平面反射鏡の反射面の法線に対して角度をな
す軸を中心に該反射鏡を回転させるモータと、前記反射
鏡で反射され、空中の物体で反射され、再び前記反射鏡
で反射されたレーザ光を受光する反射光受光素子と、前
記レーザ発振器から前記レーザ光が出射された時から前
記反射光受光素子で反射レーザ光が検知されるまでの時
間を計測し前記空中物体までの距離を演算する距離演算
部と、前記平面反射鏡の回転の角度を検出する角度検出
器と、前記距離演算部で前記距離が演算された前記空中
物体につき警報を発する条件を少なくとも距離及び角度
において設定する条件設定部と、前記距離演算部で演算
された距離と前記角度検出部で検出された角度とが前記
条件設定部で設定された距離及び角度の条件に合致する
ときに前記空中物体を侵入物と判定し警報の発令をする
判定部と、前記判定部により前記警報が発令されたとき
警報音を発する警報部とを有することを特徴とする侵入
監視装置。
1. A laser oscillator that emits light at a high repetition frequency, a plane reflecting mirror that reflects laser light emitted from the laser oscillator in a direction different from an incident optical axis of the laser beam, and a reflection of the plane reflecting mirror. A motor that rotates the reflecting mirror about an axis that forms an angle with the normal to the surface, and a laser beam that is reflected by the reflecting mirror, reflected by an object in the air, and reflected again by the reflecting mirror. A reflected light receiving element, and a distance calculator for calculating the distance to the aerial object by measuring the time from when the laser light is emitted from the laser oscillator to when the reflected laser light is detected by the reflected light receiving element. And an angle detector for detecting the angle of rotation of the plane reflecting mirror, and a condition for setting an alarm condition for at least the distance and angle for the aerial object for which the distance has been calculated by the distance calculation unit. When the distance setting unit, the distance calculated by the distance calculating unit, and the angle detected by the angle detecting unit match the distance and angle conditions set by the condition setting unit, the airborne object is intruded. An intrusion monitoring device, comprising: a determination unit that determines that the alarm is issued and issues an alarm sound when the determination unit issues the alarm.
【請求項2】 前記レーザ発振器から出射されるレーザ
光のうち前記平面反射鏡に入射されないで漏れるレーザ
光を受ける漏れ光受光素子を備え、 前記距離演算部は、前記漏れ光受光素子の出力で前記レ
ーザ発振器のレーザ光出射時点を知り、このレーザ光出
射時点から前記反射光受光素子の出力で反射レーザ光が
検知されるまでの時間をカウンタで計測することにより
前記空中物体までの距離を演算することを特徴とする請
求項1に記載の侵入監視装置。
2. A leak light receiving element for receiving a laser light leaked without being incident on the flat reflecting mirror among laser light emitted from the laser oscillator, wherein the distance calculation unit outputs the leak light receiving element. Knowing the laser light emission time point of the laser oscillator and calculating the distance to the aerial object by measuring the time from the laser light emission time point until the reflected laser light is detected by the output of the reflected light receiving element by a counter The intrusion monitoring device according to claim 1, wherein:
【請求項3】 前記条件設定部は、前記距離および角度
で設定された前記警報条件に加えて、該警報条件の距離
および角度で定まる領域内において前記空中物体が前記
距離演算部から距離として連続し検出される時間を警報
条件に含み、前記判定部は、前記距離演算部から出力さ
れる前記距離の情報の連続時間が前記条件設定部で設定
された前記連続検出時間に合致することも前記警報発令
の条件とすることを特徴とする請求項1又は2に記載の
侵入監視装置。
3. The condition setting unit, in addition to the alarm condition set by the distance and angle, the aerial object is continuously provided as a distance from the distance calculation unit in a region defined by the distance and angle of the alarm condition. The alarm condition includes a detected time, and the determination unit may be configured such that the continuous time of the distance information output from the distance calculation unit matches the continuous detection time set by the condition setting unit. The intrusion monitoring device according to claim 1 or 2, which is set as a condition for issuing an alarm.
JP5311535A 1993-12-13 1993-12-13 Intrusion monitoring device Expired - Fee Related JP2817599B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5311535A JP2817599B2 (en) 1993-12-13 1993-12-13 Intrusion monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5311535A JP2817599B2 (en) 1993-12-13 1993-12-13 Intrusion monitoring device

Publications (2)

Publication Number Publication Date
JPH07160956A true JPH07160956A (en) 1995-06-23
JP2817599B2 JP2817599B2 (en) 1998-10-30

Family

ID=18018415

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2817599B2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311158A (en) * 1996-05-10 1997-09-17 Pyronix Ltd Dual technology object detection device
JP2003272061A (en) * 2002-03-13 2003-09-26 Omron Corp Monitor
EP2048517A1 (en) * 2007-10-09 2009-04-15 Optex Co. Ltd. Laser area sensor
EP2053424A1 (en) * 2007-10-26 2009-04-29 Optex Co., Ltd. Target detecting device, target detecting method, and target detecting program
CN102651158A (en) * 2012-05-18 2012-08-29 上海理工大学 Infrared laser correlation light wall type intrusion detector
JP2013235389A (en) * 2012-05-08 2013-11-21 Atsumi Electric Co Ltd Line alert range-finding type security sensor
JP2013235390A (en) * 2012-05-08 2013-11-21 Atsumi Electric Co Ltd Range-finding type security sensor
KR101463740B1 (en) * 2010-03-31 2014-11-21 세콤 가부시키가이샤 Object detection sensor
CN109712359A (en) * 2018-12-30 2019-05-03 中国船舶重工集团公司第七一0研究所 Intrusion alarm system along high-speed rail based on one bulk detector of laser transmitting-receiving
KR20190086855A (en) * 2018-01-15 2019-07-24 주식회사 에스원 Infrared Sensing Apparatus by Using retro-reflective Object and Laser signal and Method thereof
JP2019191149A (en) * 2018-02-06 2019-10-31 ジック アーゲー Photoelectric sensor and method for detecting object in monitoring area

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JPS5934372U (en) * 1982-08-27 1984-03-03 三菱電機株式会社 distance measuring device
JPH0335110A (en) * 1989-06-22 1991-02-15 Tomra Syst As Dimension measuring instrument
JPH04295789A (en) * 1991-03-25 1992-10-20 Opt Kk Object sensing device

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS5934372U (en) * 1982-08-27 1984-03-03 三菱電機株式会社 distance measuring device
JPH0335110A (en) * 1989-06-22 1991-02-15 Tomra Syst As Dimension measuring instrument
JPH04295789A (en) * 1991-03-25 1992-10-20 Opt Kk Object sensing device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311158A (en) * 1996-05-10 1997-09-17 Pyronix Ltd Dual technology object detection device
GB2311158B (en) * 1996-05-10 1998-04-29 Pyronix Ltd Event detection device
JP2003272061A (en) * 2002-03-13 2003-09-26 Omron Corp Monitor
EP2048517A1 (en) * 2007-10-09 2009-04-15 Optex Co. Ltd. Laser area sensor
US7940178B2 (en) 2007-10-09 2011-05-10 Optex Co., Ltd. Laser area sensor
EP2053424A1 (en) * 2007-10-26 2009-04-29 Optex Co., Ltd. Target detecting device, target detecting method, and target detecting program
US8420998B2 (en) 2007-10-26 2013-04-16 Optex Co., Ltd. Target detecting and determining method for detecting and determining target based on height information and storage medium for storing program executing target detecting and determining method
KR101463740B1 (en) * 2010-03-31 2014-11-21 세콤 가부시키가이샤 Object detection sensor
JP2013235390A (en) * 2012-05-08 2013-11-21 Atsumi Electric Co Ltd Range-finding type security sensor
JP2013235389A (en) * 2012-05-08 2013-11-21 Atsumi Electric Co Ltd Line alert range-finding type security sensor
CN102651158A (en) * 2012-05-18 2012-08-29 上海理工大学 Infrared laser correlation light wall type intrusion detector
KR20190086855A (en) * 2018-01-15 2019-07-24 주식회사 에스원 Infrared Sensing Apparatus by Using retro-reflective Object and Laser signal and Method thereof
JP2019191149A (en) * 2018-02-06 2019-10-31 ジック アーゲー Photoelectric sensor and method for detecting object in monitoring area
CN109712359A (en) * 2018-12-30 2019-05-03 中国船舶重工集团公司第七一0研究所 Intrusion alarm system along high-speed rail based on one bulk detector of laser transmitting-receiving

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