JPH0262836B2 - - Google Patents
Info
- Publication number
- JPH0262836B2 JPH0262836B2 JP56187321A JP18732181A JPH0262836B2 JP H0262836 B2 JPH0262836 B2 JP H0262836B2 JP 56187321 A JP56187321 A JP 56187321A JP 18732181 A JP18732181 A JP 18732181A JP H0262836 B2 JPH0262836 B2 JP H0262836B2
- Authority
- JP
- Japan
- Prior art keywords
- moving object
- background wall
- monitoring area
- area
- detection method
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、例えば警報監視システムやバスの乗
降用ドア開閉システムなどの赤外線方式自動制御
装置などにおける移動物検知方法、より詳しく
は、監視域の背景壁面に向けて設置した赤外線検
知器による監視域内からの輻射赤外線量の測定結
果に基づいて、監視域内への移動物の進入を検出
する移動物検知方法に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a moving object detection method in an infrared automatic control device such as an alarm monitoring system or a bus door opening/closing system. The present invention relates to a moving object detection method for detecting the entry of a moving object into a monitoring area based on the measurement results of the amount of infrared radiation radiated from within the monitoring area by an infrared detector installed toward a background wall surface of the area.
上記移動物検知方法においては、赤外線検知器
がその監視域の背景壁面の表面から輻射される赤
外線の総量を常時受光測定しており、監視域内へ
の移動物侵入に起因する検知器の受光測定赤外線
総量の一定以上の変動に基づいて、監視域内に移
動物が侵入したことを検知するようにしている。
In the above moving object detection method, the infrared detector constantly measures the total amount of infrared rays radiated from the surface of the background wall in the monitoring area, and the detector measures the amount of light received by the detector due to the intrusion of a moving object into the monitoring area. Intrusion of a moving object into the monitoring area is detected based on fluctuations in the total amount of infrared rays above a certain level.
〔発明が解決しようとする課題〕
しかしながら、上記従来の移動物検知方法にお
いては、監視域内への移動物の単位面積当たりの
平均的輻射赤外線量が監視域背景壁面の単位面積
当たりの平均的輻射赤外線量と等しいか、或い
は、それにほぼ等しい場合には、赤外線検知器に
よる受光測定赤外線の総量には実質的な変動が生
じないため、監視域内への移動物侵入を検知でき
ずに見逃してしまうといつた致命的な欠陥があ
る。[Problems to be Solved by the Invention] However, in the above conventional moving object detection method, the average amount of infrared radiation per unit area of the moving object within the monitoring area is equal to the average amount of infrared radiation per unit area of the background wall surface of the monitoring area. If it is equal to or almost equal to the amount of infrared rays, there will be no substantial change in the total amount of infrared rays received and measured by the infrared detector, so the intrusion of a moving object into the monitoring area will not be detected and will be missed. There is a fatal flaw.
つまり、監視域背景壁面と侵入した移動物とが
平均的輻射赤外線量のレベルにおいて実質的に同
等な場合には、移動物の侵入を検知することがで
きず、このことが特に監視警報システムなどにお
いて重大な問題となつていた。 In other words, if the background wall surface of the monitoring area and the intruding moving object are substantially the same in terms of the average amount of infrared radiation, the intrusion of the moving object cannot be detected, and this is especially true for monitoring and alarm systems. It had become a serious problem.
本発明は、上述の事柄に留意してなされたもの
で、その目的とするところは、たとえ監視域背景
壁面と侵入した移動物とが平均的輻射赤外線量の
レベルにおいて実質的に同等の場合であつても、
移動物の侵入を確実にしかも精度よく検知するこ
とができる移動物検知方法を提供することにあ
る。 The present invention has been made with the above-mentioned considerations in mind, and its purpose is to prevent the background wall surface of the monitoring area and the intruding moving object from being substantially equal in average level of radiated infrared rays. Even if
To provide a moving object detection method capable of reliably and accurately detecting the intrusion of a moving object.
上述の目的を達成するため、本発明に係る移動
物検知方法は、背景壁面の表面を、同一時点にお
いて互いに異なる量の赤外線を輻射すると共に監
視域内に侵入する移動物によつて遮られる面積の
比の変化が方向によつて異なる複数の面積部分を
組み合わせることによつて構成し、移動物の監視
域内における侵入に伴つて連続的に変動する背景
壁面の表面の平均的輻射赤外線量が当該移動物の
平均的輻射線量と異なることに基づいて移動物の
検出を行うようにした点に特徴がある。
In order to achieve the above-mentioned object, the moving object detection method according to the present invention radiates different amounts of infrared rays on the surface of a background wall at the same time, and also radiates an area of the surface of the background wall that is blocked by a moving object that enters a monitoring area. It is constructed by combining multiple area parts whose ratio changes depending on the direction, and the average amount of radiated infrared rays on the surface of the background wall, which continuously changes as the moving object enters the monitoring area, is determined by the movement. The feature is that moving objects are detected based on the fact that the radiation dose differs from the object's average radiation dose.
以下、本発明の実施例を図面を参照しながら説
明する。
Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の移動物検知方法に基づいて移
動物を検知する侵入警報装置の一例を示し、この
図において、１は部屋Ｒの一側壁W′の裏側に固
定された赤外線検知器で、監視口１′を通して監
視域Ａ内から輻射される赤外線を受光してその総
量を測定するように構成されている。２は赤外線
検知器１に電気的に接続された制御用中間機器
で、赤外線検知器１による赤外線総量測定値が一
定以上変動した場合に警報器３を作動させるため
の指令信号を発するように構成されている。な
お、前記輻射赤外線量は室内温度の変化に伴つて
変化する可能性があるので、制御用中間機器２内
には室内温度ドリフトに伴つて基準とする赤外線
量を自動的に変更するためのレベル自動調整機構
が組み込まれている。４はその表面に監視域Ａの
背景壁面Ｓを構成するパネルで、部屋Ｒの側壁
W′に対向する固定側壁Ｗに貼り付けられている。 FIG. 1 shows an example of an intrusion alarm device that detects moving objects based on the moving object detection method of the present invention. In this figure, 1 is an infrared detector fixed to the back side of one side wall W' of a room R. , is configured to receive infrared rays radiated from within the monitoring area A through the monitoring port 1' and measure the total amount of infrared rays. 2 is a control intermediate device electrically connected to the infrared detector 1, and is configured to issue a command signal to activate the alarm 3 when the total amount of infrared rays measured by the infrared detector 1 fluctuates by more than a certain level. has been done. Furthermore, since the amount of radiated infrared rays may change as the indoor temperature changes, a level is provided in the control intermediate device 2 to automatically change the reference amount of infrared rays in accordance with indoor temperature drift. Built-in self-adjustment mechanism. 4 is a panel that constitutes the background wall surface S of the monitoring area A on its surface, and the side wall of the room R.
It is attached to the fixed side wall W facing W'.
前記パネル４および背景壁面Ｓは、第２図に示
すように、ほぼ正方形の板部材４ａの裏側面に粘
着物質４ｂを塗布すると共に、粘着物質４ｂを油
性紙４ｃで被覆する一方、表側面を一つの対角線
Ｌによつて二つの面積部分S1，S2に分割して、一
方の面積部分S1を白色に、他方の面積部分S2を黒
色にそれぞれ塗装してあつて、両面積部分S1，S2
が互いに異なる輻射率を有するように、つまり、
同一温度条件下において互いに異なる赤外線量を
輻射するように構成してある。このようなパネル
４を固定側壁Ｗに取り付けるには、油性紙４ｃを
剥がして所定箇所に押し当てて貼り付ければよ
い。 As shown in FIG. 2, the panel 4 and the background wall surface S are made by applying an adhesive substance 4b to the back side of a substantially square plate member 4a, and covering the adhesive substance 4b with oil-based paper 4c, while coating the front side. It is divided into two area parts S 1 and S 2 by one diagonal line L, and one area part S 1 is painted white and the other area part S 2 is painted black, so that both area parts are divided. S1 , S2
have different emissivities, that is,
They are configured to radiate different amounts of infrared rays under the same temperature condition. In order to attach such a panel 4 to the fixed side wall W, it is sufficient to peel off the oil-based paper 4c and press it against a predetermined location.
なお、パネル４の固定側壁Ｗへの取り付けは、
前述の背景壁面Ｓを有する板部材を釘などによつ
て固定側壁Ｗに固着してもよい。また、パネル４
に代えて、固定側壁Ｗの表面に直接塗装を施して
複数の面積部分S1，S2からなる背景壁面Ｓを構成
してもよい。 In addition, the installation of the panel 4 to the fixed side wall W is as follows.
The plate member having the background wall surface S described above may be fixed to the fixed side wall W with nails or the like. Also, panel 4
Alternatively, the surface of the fixed side wall W may be directly painted to form the background wall surface S consisting of a plurality of area portions S 1 and S 2 .
次に上記構成の侵入警報装置の動作について、
第３図をも参照しながら説明する。 Next, regarding the operation of the intrusion alarm device with the above configuration,
This will be explained with reference to FIG.
先ず、監視域Ａ内への侵入物（者）が無い場合
には、赤外線検知器１は背景壁面Ｓから輻射され
る赤外線の総量、つまり、各面積部分S1，S2のそ
れぞれから輻射される赤外線量の合計分を受光測
定している。 First, when there is no intruder into the monitoring area A, the infrared detector 1 detects the total amount of infrared rays radiated from the background wall surface S, that is, the total amount of infrared rays radiated from each area portion S 1 and S 2 . The total amount of infrared rays received is measured.
次に、第３図に示すように、監視域Ａ内に移動
物Ｍが侵入した場合、背景壁面Ｓと移動物Ｍとが
平均的輻射赤外線量のレベルにおいて異なれば、
移動物Ｍの侵入によつて赤外線検知器１の受光す
る総赤外線量が連続的に変動し、これによつて、
移動物Ｍの侵入があつたことが確実に検出され、
制御用中間機器２は警報器３′を作動させる。 Next, as shown in FIG. 3, when a moving object M enters the monitoring area A, if the background wall surface S and the moving object M differ in the level of the average amount of radiated infrared rays,
Due to the intrusion of the moving object M, the total amount of infrared light received by the infrared detector 1 fluctuates continuously, and as a result,
The intrusion of the moving object M is reliably detected,
The control intermediate device 2 activates the alarm 3'.
そして、背景壁面Ｓと侵入した移動物Ｍとが、
平均的輻射赤外線量のレベルにおいて実質的に同
等の場合であつても、移動物Ｍの侵入の進行に伴
つて背景壁面Ｓの平均的輻射赤外線量自体が連続
的に変動することとなるので、赤外線検知器１の
総受光赤外線量が変動し、これによつて、移動物
Ｍが侵入していることが確実に検知され、警報器
３が作動する。 Then, the background wall surface S and the intruding moving object M are
Even if the level of the average amount of radiated infrared rays is substantially the same, the average amount of radiated infrared rays of the background wall surface S itself will fluctuate continuously as the moving object M advances in invasion. The total amount of infrared rays received by the infrared detector 1 fluctuates, whereby the intrusion of the moving object M is reliably detected and the alarm 3 is activated.
このことを、第４図イ，ロに示す単純なモデル
で考えれば、より一層簡単に理解することができ
る。すなわち、同図イは背景壁面Ｓを示し、この
背景壁面Ｓは互いに等しい面積を有すると共に、
輻射赤外線量レベルが８対２である二つの面積部
分S1(2)，S2(8)からなり、その平均的輻射赤外線量
レベルは５である。 This can be understood even more easily by considering the simple model shown in Figure 4 A and B. That is, the figure A shows the background wall surface S, and this background wall surface S has the same area as each other, and
It consists of two area portions S 1 (2) and S 2 (8) in which the radiated infrared rays amount level is 8:2, and the average radiated infrared rays amount level is 5.
そして、今、この背景壁面Ｓの前に平均的輻射
赤外線量レベル５の移動物Ｍ(5)が一方の面積部分
S1(2)の全部を覆う状態で侵入したとすると、背景
壁面Ｓの全体の平均的輻射赤外線量レベルは、元
の５から（８＋５）÷２、つまり、6.5に変化す
る。一方、同図ロに示すように、背景壁面が単一
の面積部分S0(5)のみで構成されている場合、この
背景壁面と平均的輻射赤外線量レベルが同一の移
動物Ｍ(5)が侵入しても、背景壁面全体の平均的輻
射赤外線量レベルは全く変化しないのである。 Now, in front of this background wall S, there is a moving object M(5) with average radiated infrared radiation amount level 5 in one area.
If S 1 (2) is invaded in a state that covers the entire area, the overall average level of radiated infrared rays on the background wall surface S changes from the original 5 to (8+5)÷2, that is, 6.5. On the other hand, as shown in FIG. Even if intrusion occurs, the average level of radiated infrared rays on the entire background wall surface does not change at all.
なお、背景壁面Ｓのパターンは上記実施例のも
のに限られるものではなく、例えば第５図イ〜チ
に示すように、様々な模様や形状のパターンにす
ることができ、用途や目的に応じて適宜設定すれ
ばよい。そして、同図トに示すように多数の色彩
からなる絵画風のものとすれば非常に美的であ
り、また、侵入者に特別な装置であることを気付
かせることがない。また、同図チに示すように、
広告などを兼ねる文字やマークを形成すれば非常
に実用的である。さらに、各面積部分S1，S2を、
それに塗装する色によつて輻射率を変えるのでは
なく、たとえ同色であつても輻射率の異なる素材
を適宜組み合わせて構成してもよい。さらにま
た、背景壁面Ｓのパターンの構成如何によつて
は、移動物Ｍの移動方向や移動速度をも検出する
ことができる。 Note that the pattern of the background wall surface S is not limited to that of the above embodiment, and can be patterned in various patterns and shapes, for example, as shown in Fig. 5 1 to 5, depending on the use and purpose. You can set it as appropriate. If it is made to look like a painting with many colors, as shown in Figure 3, it will be very aesthetically pleasing, and an intruder will not notice that it is a special device. In addition, as shown in Figure C,
It is very practical to form characters or marks that also serve as advertisements. Furthermore, each area portion S 1 , S 2 is
Rather than changing the emissivity depending on the color applied to it, it may be constructed by appropriately combining materials with different emissivities even if they are of the same color. Furthermore, depending on the configuration of the pattern of the background wall surface S, the moving direction and moving speed of the moving object M can also be detected.
以上説明したように、本発明においては、背景
壁面の表面を、同一時点において互いに異なる量
の赤外線を輻射すると共に監視域内は侵入する移
動物によつて遮られる面積の比の変化が方向によ
つて異なる複数の面積部分を組み合わせることに
よつて構成し、移動物の監視域内への侵入に伴つ
て連続的に変動する背景壁面の表面の平均的輻射
赤外線が当該移動物の平均的輻射線量と異なるこ
とに基づいて移動物の検出を行うようにしている
ので、たとえ、監視域の背景壁面と監視域内に侵
入した移動物とが、平均的輻射赤外線量のレベル
において実質的に同等の場合であつても、移動物
の監視域内の侵入に伴つて背景壁面の平均的輻射
赤外線量自体が連続的に変動することとなり、移
動物のそれとは異なるものとなるので、移動物の
侵入を確実に精度よく検知することができ、背景
壁面のパターンの構成如何によつては、移動物の
移動方向や移動速度をも検出することができる。
As explained above, in the present invention, different amounts of infrared rays are radiated from the surface of the background wall at the same time, and within the monitoring area, the ratio of the area blocked by an invading moving object changes depending on the direction. The average radiation infrared rays on the surface of the background wall, which continuously changes as the moving object enters the monitoring area, is the average radiation dose of the moving object. Since moving objects are detected based on different factors, even if the background wall surface of the monitoring area and the moving object that has entered the monitoring area are substantially the same in terms of the average amount of infrared radiation, Even if a moving object enters the monitoring area, the average amount of infrared radiation on the background wall itself will fluctuate continuously and will be different from that of the moving object, so it is difficult to ensure that the moving object does not enter. It can be detected with high accuracy, and depending on the configuration of the pattern on the background wall surface, it is also possible to detect the moving direction and moving speed of the moving object.
そして、本発明によれば、検知精度を向上させ
るのに、装置の電気系や機械系自体に何らの変更
をも要するものでないから、装置全体の複雑化や
大幅なコストアツプを招来することがなく、経済
的にも極めて優れた効果を奏する。 According to the present invention, improving the detection accuracy does not require any changes to the electrical system or mechanical system of the device itself, so the overall device does not become complicated or significantly increase in cost. , it has extremely excellent economical effects.
第１図は本発明方法を実施するための侵入警報
装置の全体構成を示す図、第２図はその要部の拡
大図である。第３図は本発明方法の動作説明図、
第４図イ，ロは本発明方法の動作説明のための模
式図である。第５図イ〜チは背景壁面のパターン
の態様をそれぞれ示す図である。
１…赤外線検知器、Ａ…監視域、Ｍ…移動物、
Ｓ…背景壁面、Ｗ…固定壁。
FIG. 1 is a diagram showing the overall configuration of an intrusion alarm device for carrying out the method of the present invention, and FIG. 2 is an enlarged view of the main parts thereof. FIG. 3 is an explanatory diagram of the operation of the method of the present invention;
FIGS. 4A and 4B are schematic diagrams for explaining the operation of the method of the present invention. FIGS. 5A to 5E are diagrams each showing the pattern of the background wall surface. 1...Infrared detector, A...Monitoring area, M...Moving object,
S...background wall surface, W...fixed wall.
Claims (1)
知器による監視域内からの輻射赤外線量の測定結
果に基づいて、監視域内への移動物の侵入を検出
する移動物検知方法において、前記背景壁面の表
面を、同一時点において互いに異なる量の赤外線
を輻射すると共に監視域内に侵入する移動物によ
つて遮られる面積の比の変化が方向によつて異な
る複数の面積部分を組み合わせることによつて構
成し、移動物の監視域内への侵入に伴つて連続的
に変動する背景壁面の表面の平均的輻射赤外線量
が当該移動物の平均的輻射線量と異なることに基
づいて移動物の検出を行うようにしたことを特徴
とする移動物検知方法。 ２ 前記背景壁面の表面を、互いに異なる色の複
数の面積部分を組み合わせて構成してあることを
特徴とする特許請求の範囲第１項に記載の移動物
検知方法。 ３ 前記背景壁面の表面を、互いに異なる輻射率
を有する素材を組み合わせて構成してあることを
特徴とする特許請求の範囲第１項に記載の移動物
検知方法。 ４ 前記背景壁面の表面を、固定壁に対して取り
付け可能なシート状またはパネル状の組立部材に
構成してあることを特徴とする特許請求の範囲第
１項から第３項の何れかに記載の移動物検知方
法。[Claims] 1. A moving object detection method for detecting the intrusion of a moving object into a monitoring area based on the measurement results of the amount of infrared radiation from within the monitoring area using an infrared detector installed toward the background wall of the monitoring area. In this method, the surface of the background wall is combined with a plurality of area portions that radiate different amounts of infrared rays at the same time and that change in the ratio of the area blocked by a moving object intruding into the monitoring area differs depending on the direction. Based on the fact that the average amount of radiated infrared rays on the surface of the background wall, which continuously changes as the moving object enters the monitoring area, is different from the average amount of radiation of the moving object, A moving object detection method characterized by detecting. 2. The moving object detection method according to claim 1, wherein the surface of the background wall is configured by combining a plurality of area portions of mutually different colors. 3. The moving object detection method according to claim 1, wherein the surface of the background wall is made of a combination of materials having different emissivities. 4. According to any one of claims 1 to 3, the surface of the background wall is configured as a sheet-like or panel-like assembly member that can be attached to a fixed wall. moving object detection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56187321A JPS5899781A (en) | 1981-11-20 | 1981-11-20 | Detecting device for moving object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56187321A JPS5899781A (en) | 1981-11-20 | 1981-11-20 | Detecting device for moving object |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5899781A JPS5899781A (en) | 1983-06-14 |
| JPH0262836B2 true JPH0262836B2 (en) | 1990-12-26 |
Family
ID=16203956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56187321A Granted JPS5899781A (en) | 1981-11-20 | 1981-11-20 | Detecting device for moving object |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5899781A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6141600U (en) * | 1984-08-17 | 1986-03-17 | 株式会社 ほくさん | Moving object detection device in high temperature furnace |
| US5400722A (en) * | 1992-11-25 | 1995-03-28 | American Engineering Corporation | Security module |
| DE102006003228A1 (en) * | 2006-01-24 | 2007-08-02 | Sick Ag | Device for monitoring a protective field |
| JP2018116057A (en) * | 2017-01-16 | 2018-07-26 | パナソニックＩｐマネジメント株式会社 | Detection system |
| JP2018179516A (en) * | 2017-04-03 | 2018-11-15 | 株式会社デンソーウェーブ | Object moving-direction determination device |
| JP2020159838A (en) * | 2019-03-26 | 2020-10-01 | 一般社団法人新生福島先端技術振興機構 | Method for superimposing visible image and infrared thermal image on each other |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5677776A (en) * | 1980-11-10 | 1981-06-26 | Seikosha Co Ltd | Photoelectric detecting device |
-
1981
- 1981-11-20 JP JP56187321A patent/JPS5899781A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5899781A (en) | 1983-06-14 |
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