JP7793349B2 - Sensory field of view confirmation device - Google Patents
Sensory field of view confirmation deviceInfo
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Description
本発明は、炎感知器等の異常感知器において、感知領域を画定する感知視野を確認する
ための感知視野確認装置に関するものである。
The present invention relates to a detection field confirmation device for confirming a detection field that defines a detection area in an abnormality detector such as a flame detector.
炎から放射される赤外線を感知する炎感知器は、天井や壁等に取り付けられて所定の領域を監視する。炎感知器は、監視すべき監視対象領域を感知視野Ｖに収めるように設置しなければならない。例えば、複数の炎感知器１を建物２の天井２１に設置して床２２の方向を監視する場合には、図１のように感知視野Ｖが重なるようにして、感知領域から漏れる監視領域がないように炎感知器１を設置する。 Flame detectors, which detect infrared rays emitted from flames, are attached to ceilings, walls, etc. to monitor a specified area. Flame detectors must be installed so that the area to be monitored falls within their detection field of view V. For example, if multiple flame detectors 1 are installed on the ceiling 21 of a building 2 to monitor the direction of the floor 22, the flame detectors 1 are installed so that their detection fields V overlap, as shown in Figure 1, and no monitored area is outside the detection field.
炎感知器の感知領域を確認するために、特許文献１では、炎感知器１の位置にレーザポインタを有した確認装置を設置し、斜めに傾けたレーザポインタを回転させる。レーザポインタの傾きは炎感知器１の視野角の方向に調整する。レーザ光線が通る円錐の内側が感知視野Ｖであり、床２２に描かれた円の内側が感知領域となる。そして、複数の感知領域により、監視すべき監視対象領域を監視できるか確認する。しかしながら、レーザポインタによる光は外縁のみを表示するため、障害物があって外縁をうまく描けない場合等にどこまでが感知視野Ｖに含まれるのか分かりにくかった。 In order to confirm the detection area of a flame detector, Patent Document 1 installs a confirmation device with a laser pointer at the position of the flame detector 1, and rotates the tilted laser pointer. The tilt of the laser pointer is adjusted in the direction of the field of view of the flame detector 1. The inside of the cone through which the laser beam passes is the detection field V, and the inside of the circle drawn on the floor 22 is the detection area. Using multiple detection areas, it is then confirmed whether the target area to be monitored can be monitored. However, because the light from the laser pointer only displays the outer edge, it can be difficult to determine the extent of the detection field V if the outer edge cannot be drawn properly due to an obstacle.
さらに、図２に示すように屋外で建物２の全体を炎感知器１で監視する場合、地面３や建物２の壁面等には確認装置のレーザポインタで円を描くことができる。しかし、空中に感知視野Ｖの外縁がある場合には円を描くことができない。そのため、このような場合には、感知視野Ｖを確認することが難しかった。また、建物２の所有者等に感知視野Ｖや感知領域の分かりやすい資料を提供することができれば、顧客への高いレベルのサービスとなる。しかしこのような資料を作成することも難しかった。これらのことは、感知視野を有する炎感知器１以外の異常感知器についても同様である。 Furthermore, as shown in Figure 2, when monitoring the entire building 2 outdoors with a flame detector 1, it is possible to draw a circle on the ground 3 or the wall of the building 2 with the laser pointer of the confirmation device. However, if the outer edge of the detection field V is in the air, it is not possible to draw a circle. Therefore, in such cases, it is difficult to confirm the detection field V. Furthermore, if it were possible to provide the owner of the building 2 with easy-to-understand documentation on the detection field V and detection area, it would be a high-level service to customers. However, creating such documentation is also difficult. The same applies to abnormality detectors other than the flame detector 1 that have a detection field.
本発明は、感知視野Ｖから漏れる監視対象領域がないように異常感知器を設置したり、設置された異常感知器の感知視野Ｖを確認したり、感知視野Ｖを記録した資料を作成することが容易な、感知視野確認装置および感知視野確認方法を提供することを課題とする。 The objective of the present invention is to provide a detection field confirmation device and a detection field confirmation method that make it easy to install anomaly detectors so that no monitored area is outside the detection field V, to check the detection field V of an installed anomaly detector, and to create documentation recording the detection field V.
本発明の一実施形態における感知視野確認装置は、異常感知器とは異なる装置であり、 異常感知器の設置位置又は設置予定位置に配置することが可能な支持部と、前記支持部に支持され、異常感知器の感知視野に対応する感知視野画像を取得するカメラ部と、を備え、前記カメラ部の前方に、前記感知視野に相当する大きさの開口が設けられているものである。 The detection field confirmation device in one embodiment of the present invention is a device different from the anomaly detector, and comprises a support part that can be placed at the installation location or planned installation location of the anomaly detector, and a camera part that is supported by the support part and acquires a detection field image corresponding to the detection field of the anomaly detector, and an opening of a size corresponding to the detection field is provided in front of the camera part.
カメラ部により異常感知器の感知視野に対応する画像を取得することによって、容易に感知視野Ｖの情報を得ることができる。 By using the camera unit to capture an image corresponding to the anomaly detector's field of view, information on the field of view V can be easily obtained.
本願においては、異常感知器の感知視野Ｖがある方向を前方と記載し、その反対方向を後方と記載する。感知視野確認装置は異常感知器に取り付けた状態で前方、後方と記載する。 In this application, the direction in which the anomaly detector's field of view V is located is referred to as "forward," and the opposite direction is referred to as "rear." The field of view confirmation device is referred to as "forward" and "rear" when attached to the anomaly detector.
図３、４に実施例１における感知視野確認装置５を示す。図３は前面図、図４は側面図である。点線は隠れている構造を示す。感知視野確認装置５において、支持部５１の前方にはカメラ部５２が支持されている。そして、カメラ部５２は、前方と周囲をゴム製のカバー５４により覆われる。カバー５４の内面はカメラ部５２の外周に沿った形状であり、カメラ部５２に被せることによりカバー５４を所定位置に固定することができる。そして、カバー５４を所定位置に固定した状態で、カバー５４の開口５４１がカメラ部５２の前方に位置する。支持部５１は、異常感知器である炎感知器１の設置位置又は設置予定位置に配置されて、感知視野Ｖを確認することができる。 Figures 3 and 4 show the detection field confirmation device 5 in Example 1. Figure 3 is a front view, and Figure 4 is a side view. Dotted lines indicate hidden structures. In the detection field confirmation device 5, a camera unit 52 is supported in front of a support unit 51. The front and periphery of the camera unit 52 are covered by a rubber cover 54. The inner surface of the cover 54 is shaped to follow the outer periphery of the camera unit 52, and the cover 54 can be fixed in a predetermined position by placing it over the camera unit 52. When the cover 54 is fixed in a predetermined position, the opening 541 of the cover 54 is located in front of the camera unit 52. The support unit 51 is placed at the installation position or planned installation position of the flame detector 1, which is an abnormality detector, so that the detection field V can be confirmed.
感知視野Ｖを確認する際には、カバー５４の開口５４１を通してカメラ部５２から撮影を行う。図４に示した開口５４１の前方から延びる一点鎖線の内側は、感知視野Ｖに相当するカメラ部５２の視野Ｖ１の領域であり、この領域内にある物を撮影することができる。視野Ｖ１の外側の領域はカバー５４により遮光されており、撮影することはできない。カメラ部５２は被写界深度が深いものを用いて開口５４１の輪郭が写りやすいようにしている。 When checking the detection field of view V, an image is taken from the camera unit 52 through the opening 541 in the cover 54. The area inside the dashed dotted line extending from the front of the opening 541 shown in Figure 4 is the area of the field of view V1 of the camera unit 52, which corresponds to the detection field of view V, and objects within this area can be photographed. The area outside the field of view V1 is shielded from light by the cover 54 and cannot be photographed. The camera unit 52 is designed with a deep depth of field so that the outline of the opening 541 is easily captured.
ここで、感知視野Ｖを確認する実施形態の炎感知器１の前面図を図５に示す。炎感知器１は、外周面１２が前方からみて略正方形であり、前面に炎感知センサー１１を備えている。炎感知器１では炎感知センサー１１として３つの赤外線センサーを並べて配置しており、炎感知センサー１１は一方に長い形状となっている。 Figure 5 shows a front view of an embodiment of a flame detector 1 for checking the detection field of view V. The flame detector 1 has an outer peripheral surface 12 that is roughly square when viewed from the front, and is equipped with a flame detection sensor 11 on the front. In the flame detector 1, three infrared sensors are arranged side by side as the flame detection sensor 11, and the flame detection sensor 11 is elongated on one side.
一方、感知視野確認装置５において、支持部５１の後方には、嵌合部５３が設けられている。実施例１の嵌合部５３では、十字状の板における４つの端部から、後方に嵌合脚５３１が突出している。嵌合脚５３１は、感知視野Ｖを確認する炎感知器１の外周面１２に合わせた形状である。そして、感知視野Ｖを確認する際に感知視野確認装置５を炎感知器１に取り付けるとき、嵌合部５３の嵌合脚５３１は、図５に示した異常感知器である炎感知器１の外周面１２に当接する。さらに、炎感知器１の前面に感知視野確認装置５の嵌合底５３２が当接することにより、感知視野確認装置５が炎感知器１の前方に位置合わせされる。 Meanwhile, the sensing field confirmation device 5 has a fitting portion 53 provided behind the support portion 51. In the fitting portion 53 of Example 1, fitting legs 531 protrude rearward from the four ends of the cross-shaped plate. The fitting legs 531 are shaped to match the outer peripheral surface 12 of the flame detector 1 that confirms the sensing field V. When the sensing field confirmation device 5 is attached to the flame detector 1 to confirm the sensing field V, the fitting legs 531 of the fitting portion 53 abut against the outer peripheral surface 12 of the flame detector 1, which is the abnormality detector shown in Figure 5. Furthermore, the fitting bottom 532 of the sensing field confirmation device 5 abuts against the front surface of the flame detector 1, thereby aligning the sensing field confirmation device 5 in front of the flame detector 1.
感知視野確認装置５は、図６に示すように、嵌合部５３で炎感知器１を囲うようにして位置決めされる。このとき、図５に示した炎感知器１の炎感知センサー１１の前方にカメラ部５２が位置する。カメラ部５２は、炎感知器１の感知視野Ｖに対応する画像である感知視野画像６１を取得する。カメラ部５２に取り付けられたカバー５４の開口５４１により、カメラ部５２の視野Ｖ１が定まる。嵌合部５３は、支持部５１に着脱可能であり、炎感知器１の異なる製品に対応した嵌合部５３と交換することができる。 As shown in Figure 6, the sensing field confirmation device 5 is positioned so that the fitting portion 53 surrounds the flame detector 1. At this time, the camera unit 52 is positioned in front of the flame detection sensor 11 of the flame detector 1 shown in Figure 5. The camera unit 52 acquires a sensing field image 61, which is an image corresponding to the sensing field V of the flame detector 1. The field V1 of the camera unit 52 is determined by an opening 541 in a cover 54 attached to the camera unit 52. The fitting portion 53 is detachable from the support portion 51 and can be replaced with a fitting portion 53 corresponding to a different flame detector 1 model.
図７に２種類のカバー５４、５５を示す。図７（ａ）に示したカバー５４の開口５４１よりも図７（ｂ）のカバー５５の開口５５１の方が小さく形成されている。前述のように、カバー５４はゴム製であってカメラ部５２から取り外しでき、交換可能である。図７（ａ）は、図３、４、６に示した感知視野確認装置５におけるカバー５４である。これを図７（ｂ）のカバー５５に交換することによって、視野Ｖ１の角度を狭くすることができる。開口５４１、開口５５１は、炎感知器１の感知視野Ｖに相当する大きさとなるようにする。 Figure 7 shows two types of covers 54, 55. The opening 551 of the cover 55 in Figure 7(b) is smaller than the opening 541 of the cover 54 shown in Figure 7(a). As mentioned above, the cover 54 is made of rubber and can be removed from the camera unit 52 and is replaceable. Figure 7(a) shows the cover 54 of the sensing field confirmation device 5 shown in Figures 3, 4, and 6. By replacing this with the cover 55 in Figure 7(b), the angle of the field of view V1 can be narrowed. The openings 541 and 551 are sized to correspond to the sensing field of view V of the flame detector 1.
炎感知器１は、製品により感知視野Ｖの角度が定まっているが、このように異なった開口を有するカバーに交換可能とすることにより、感知視野確認装置５を炎感知器１の異なる製品や他の異常感知器に対応させることができる。 The angle of the detection field V of the flame detector 1 is fixed depending on the product, but by making the cover interchangeable with one having a different opening, the detection field confirmation device 5 can be used with different flame detector 1 products or other abnormality detectors.
感知視野確認装置５を用いる際には、炎感知器１の感知視野Ｖの角度に合わせたカバー５４をカメラ部５２に取り付け、炎感知器１に合わせた嵌合部５３を支持部５１に取り付けておく。そして、感知視野確認装置５の嵌合部５３を、上記のように嵌合脚５３１と嵌合底５３２で炎感知器１に篏合することで、カメラ部５２の視野Ｖ１が炎感知器１の感知視野Ｖと略一致する。カメラ部５２の視野Ｖ１が前方へ拡がる角度と炎感知器１の感知視野Ｖの前方に拡がる角度が同じであっても、カメラ部５２が炎感知器１の前方に設置されているために、カメラ部５２の視野Ｖ１は炎感知器１の感知視野Ｖより少し小さくなる。しかし、少し小さくなることによって、炎感知器１の感知視野Ｖの外側が感知視野画像６１として表示されることはなく、問題は生じない。 When using the detection field confirmation device 5, a cover 54 that matches the angle of the detection field V of the flame detector 1 is attached to the camera unit 52, and a fitting portion 53 that matches the flame detector 1 is attached to the support portion 51. Then, by fitting the fitting portion 53 of the detection field confirmation device 5 to the flame detector 1 using the fitting legs 531 and fitting bottom 532 as described above, the field of view V1 of the camera unit 52 approximately coincides with the detection field V of the flame detector 1. Even if the angle at which the field of view V1 of the camera unit 52 extends forward is the same as the angle at which the detection field V of the flame detector 1 extends forward, because the camera unit 52 is installed in front of the flame detector 1, the field of view V1 of the camera unit 52 is slightly smaller than the detection field V of the flame detector 1. However, this slight reduction in size prevents the area outside the detection field V of the flame detector 1 from being displayed as the detection field image 61, so no problem occurs.
撮影は、炎感知器１に感知視野確認装置５を位置決めした状態で行う。カメラ部５２により撮影された画像６は、Bluetooth（登録商標）によりスマートフォン（図示せず）に送信される。図８に、スマートフォンに表示された画像６を示す。図８は、図２に示した柱４に感知視野確認装置５を設置して建物２を撮影した時の画像６である。画像６において建物２が写った円内の領域は、感知視野画像６１である。そして、円の外側の黒い領域は、カバー５４により遮光された遮光領域画像６２である。実施例１では被写界深度が深いレンズのカメラ部５２を用いているが、カバー５４の開口５４１がカメラ部５２に近いため感知視野画像６１と遮光領域画像６２の境目にフォーカスが合わないこともあり得る。しかし、感知視野Ｖを確認することは可能である。 Photographing is performed with the detected field confirmation device 5 positioned on the flame detector 1. The image 6 captured by the camera unit 52 is sent to a smartphone (not shown) via Bluetooth (registered trademark). Figure 8 shows image 6 displayed on the smartphone. Figure 8 shows image 6 captured when the detected field confirmation device 5 is installed on the pillar 4 shown in Figure 2 and a building 2 is photographed. The circled area in image 6 that captures the building 2 is the detected field image 61. The black area outside the circle is the shaded area image 62 shaded by the cover 54. In Example 1, a camera unit 52 with a lens with a deep depth of field is used, but because the opening 541 of the cover 54 is close to the camera unit 52, it is possible that the boundary between the detected field image 61 and the shaded area image 62 will not be in focus. However, it is possible to confirm the detected field V.
炎感知器１を設置したり既設の炎感知器１を点検したりするために炎感知器１の感知視野Ｖを確認する場合には、炎感知器１に感知視野確認装置５を位置決めした状態で撮影を行う。作業者は、図８に示すようにスマートフォンに表示された感知視野Ｖの画像６を確認しながら、炎感知器１の取り付け位置を調整することができる。このように作業者は、感知視野確認方法として、カメラ部５２を有した感知視野確認装置５を異常感知器である炎感知器１の前に位置合わせし、カメラ部５２で撮影した画像６により炎感知器１の感知視野Ｖを確認する。 When checking the detection field V of a flame detector 1 to install a flame detector 1 or inspect an existing flame detector 1, an image is taken with the detection field confirmation device 5 positioned on the flame detector 1. As shown in Figure 8, the worker can adjust the installation position of the flame detector 1 while checking the image 6 of the detection field V displayed on the smartphone. In this way, as a detection field confirmation method, the worker positions the detection field confirmation device 5 with the camera unit 52 in front of the flame detector 1, which is an abnormality detector, and checks the detection field V of the flame detector 1 using the image 6 taken by the camera unit 52.
また、実施例１の感知視野確認装置５に長尺部７７を設けた感知視野確認装置７とすることができる。長尺部７７を設けた感知視野確認装置７により高所に設置する炎感知器１に用いて、点検等の際に既設の炎感知器１における感知視野Ｖを確認したり、炎感知器１の設置前に設置予定位置の感知視野Ｖを確認したりすることができる。図９に長尺部７７を設けた感知視野確認装置７を示す。嵌合部７３は、実施例１の嵌合部５３と同様の構造であり、嵌合部７３により感知視野確認装置７を炎感知器１の前方に位置合わせすることができる。また、カバー７４も実施例１のカバー５４等と同様であり、開口７４１により感知視野Ｖを規定する。 The detection field confirmation device 7 can also be formed by adding a long portion 77 to the detection field confirmation device 5 of Example 1. The detection field confirmation device 7 with the long portion 77 can be used with a flame detector 1 installed at a high location to check the detection field V of an existing flame detector 1 during inspection, or to check the detection field V of a planned installation location before installing the flame detector 1. Figure 9 shows the detection field confirmation device 7 with the long portion 77. The fitting portion 73 has a structure similar to that of the fitting portion 53 of Example 1, and the fitting portion 73 allows the detection field confirmation device 7 to be positioned in front of the flame detector 1. The cover 74 is also similar to the cover 54 of Example 1, and the opening 741 defines the detection field V.
実施例２の感知視野確認装置７では、実施例１における感知視野確認装置５の支持部５１に相当する支持部７１の両側部が、支持アーム７５の先端部近傍に設けた軸７６により回転可能に軸支されている。支持アーム７５は略Ｕ字形状を有しており、中心部が長尺部７７の一端に接続している。長尺部７７の他端近傍は作業者が手で感知視野確認装置７を持ち上げる部分であり、他端から少し離れた位置にスマートフォンのホルダー７８を設けている。 In the detected visual field confirmation device 7 of Example 2, both sides of a support part 71, which corresponds to the support part 51 of the detected visual field confirmation device 5 of Example 1, are rotatably supported by a shaft 76 provided near the tip of a support arm 75. The support arm 75 has a generally U-shape, and its center is connected to one end of a long part 77. The area near the other end of the long part 77 is where the worker lifts the detected visual field confirmation device 7 with their hand, and a smartphone holder 78 is provided a short distance from the other end.
作業者は、ホルダー７８にスマートフォン（図示せず）を挟んで固定する。スマートフォンはカメラ部７２とBluetooth（登録商標）で接続している。そして、カメラ部７２で撮影した図８のような画像６をスマートフォンの画面に表示して、作業者が確認することができる。また、作業者は画像６をスマートフォンに記憶して、資料の作成に用いることができる。 The worker clamps and secures a smartphone (not shown) in the holder 78. The smartphone is connected to the camera unit 72 via Bluetooth (registered trademark). An image 6, such as the one shown in Figure 8, captured by the camera unit 72 is then displayed on the smartphone screen for the worker to review. The worker can also store the image 6 on the smartphone and use it to create materials.
実施例３は、図８に示した画像６の感知視野画像６１と遮光領域画像６２の境目にフォーカスを合わせ易くするためのものである。実施例３の前面図を図１０に、側面図を図１１に示す。実施例３の感知視野確認装置８では、実施例１、２のカバー５４、５５、７４に換えて遮光筒８４を用いる。遮光筒８４は筒状部材であって、支持部８１に長さや半径等が異なる他の遮光筒と交換可能に取り付けられる。これは、炎感知器１の製品により感知視野Ｖの角度が異なることに対応するためのものであり、実施例１のカバー５４、５５が交換可能であることと同様である。 Example 3 is intended to make it easier to focus on the boundary between the sensing field image 61 and the light-shielded area image 62 in image 6 shown in Figure 8. Figure 10 shows a front view of Example 3, and Figure 11 shows a side view. The sensing field confirmation device 8 of Example 3 uses a light-shielding tube 84 instead of the covers 54, 55, and 74 of Examples 1 and 2. The light-shielding tube 84 is a cylindrical member that can be attached to the support part 81 interchangeably with other light-shielding tubes having different lengths, radii, etc. This is to accommodate the fact that the angle of the sensing field V varies depending on the flame detector 1 product, and is similar to the interchangeable covers 54 and 55 of Example 1.
図１１に示すように、遮光筒８４の開口８４１はカメラ部８２の前面からある程度離間した位置に設けられている。そのため、さらに被写界深度が深いカメラ部８２を用いることによって、図８に示した画像６の感知視野画像６１と遮光領域画像６２の境目にフォーカスが合い易く、境目がシャープに表示される。 As shown in Figure 11, the opening 841 of the light-shielding tube 84 is located at a certain distance from the front of the camera unit 82. Therefore, by using a camera unit 82 with a deeper depth of field, it is easier to focus on the boundary between the sensory field of view image 61 and the light-shielded area image 62 in image 6 shown in Figure 8, and the boundary is displayed sharply.
実施例３では実施例１、２と同様に、支持部８１の後方に、嵌合脚８３１と嵌合底８３２を有した嵌合部８３が設けられている。一方、実施例３では支持部８１の下部に錘８５が設けられている。実施例２のように長尺部７７を取り付けて用いる場合に、錘８５によりバランスをとり、嵌合脚８３１を有した嵌合部８３の角度が炎感知器１に取り付けやすいように調整することができる。錘８５は、実施例１、２の感知視野確認装置５、７でも用いてもよい。 In Example 3, similar to Examples 1 and 2, a fitting portion 83 having a fitting leg 831 and a fitting bottom 832 is provided behind the support portion 81. Meanwhile, in Example 3, a weight 85 is provided below the support portion 81. When using the long portion 77 attached as in Example 2, the weight 85 provides balance, and the angle of the fitting portion 83 having the fitting leg 831 can be adjusted to facilitate attachment to the flame detector 1. The weight 85 may also be used in the detection field confirmation devices 5 and 7 of Examples 1 and 2.
以上、本発明の実施形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。また、上述の各実施の形態は、その目的及び構成等に特に矛盾や問題がない限り、互いの技術を流用して組み合わせることが可能である。 Although embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention also includes design changes that do not deviate from the gist of the present invention. Furthermore, the above-mentioned embodiments can be combined by utilizing each other's technology, as long as there are no particular contradictions or problems with their purpose, configuration, etc.
たとえば、支持部とカメラ部が一体的に形成されていてもよく、支持部と嵌合部が一体的に形成されていてもよい。また、嵌合部が支持部の本体から取り外し可能であっても良い。嵌合部は嵌合すればどのような形状であっても良い。例えば、嵌合部が異常感知器における外周面の形状と同じ形状の凹部であってもよい。また、異常感知器の設置予定位置に感知視野確認装置を配置して、異常感知器の感知視野を確認する使用法では、嵌合部はなくてもよい。 For example, the support part and camera part may be integrally formed, or the support part and fitting part may be integrally formed. Furthermore, the fitting part may be detachable from the main body of the support part. The fitting part may have any shape as long as it fits. For example, the fitting part may be a recessed part with the same shape as the outer peripheral surface of the anomaly detector. Furthermore, in a method of use in which a detection field confirmation device is placed at the planned installation location of the anomaly detector to check the detection field of the anomaly detector, the fitting part may not be necessary.
実施形態では、カバーにより視野Ｖ１を規定して感知視野画像６１を得た。しかし、視野Ｖ１を規定するカバー等を用いずに、ソフトウェア的に感知視野に対応する画像を表示しても良い。例えば、カメラ部のレンズ特性に合わせて、感知視野となる画像領域を感知視野画像とし、その外側を黒色等の遮光領域画像とした画像を画像処理により得ることができる。 In this embodiment, the field of view V1 is defined by a cover to obtain the sensory field image 61. However, it is also possible to display an image corresponding to the sensory field using software without using a cover or the like to define the field of view V1. For example, an image can be obtained by image processing in which the image area that becomes the sensory field is used as the sensory field image, and the area outside of that is a light-blocking area image, such as black, to match the lens characteristics of the camera unit.
実施形態では、異常感知器として炎感知器を挙げた。しかし、感知視野確認装置は感知視野を有する他の異常感知器に用いてもよい。例えば、超音波センサーや侵入検知に用いる焦電センサー等に適用してもよい。 In the embodiment, a flame detector is used as an anomaly detector. However, the detection field confirmation device may also be used with other anomaly detectors that have a detection field. For example, it may be applied to ultrasonic sensors or pyroelectric sensors used for intrusion detection.
１ 炎感知器、１１ 炎感知センサー、１２ 外周面、
２ 建物、２１ 天井、２２ 床、
３ 地面、
４ 柱、
５ 感知視野確認装置、５１ 支持部、５２ カメラ部、５３ 嵌合部、５３１ 嵌合脚、５３２ 嵌合底、５４ カバー、５４１ 開口、５５ カバー、５５１ 開口、
６ 画像、６１ 感知視野画像、６２ 遮光領域画像、
７ 感知視野確認装置、７１ 支持部、７２ カメラ部、７３ 嵌合部、７４ カバー、７４１ 開口、７５ 支持アーム、７６ 軸、７７ 長尺部、７８ ホルダー、
８ 感知視野確認装置、８１ 支持部、８２ カメラ部、８３ 嵌合部、８３１ 嵌合脚、８３２ 嵌合底、８４ 遮光筒、８４１ 開口、８５ 錘、
Ｖ 感知視野、Ｖ１ 視野
1 Flame detector, 11 Flame detection sensor, 12 Outer periphery,
2 buildings, 21 ceilings, 22 floors,
3 ground,
4 pillars,
5: sensing field of view confirmation device, 51: support part, 52: camera part, 53: fitting part, 531: fitting leg, 532: fitting bottom, 54: cover, 541: opening, 55: cover, 551: opening,
6 Image, 61 Sensing field image, 62 Light-blocking area image,
7: sensing field confirmation device, 71: support part, 72: camera part, 73: fitting part, 74: cover, 741: opening, 75: support arm, 76: shaft, 77: long part, 78: holder,
8: Sensing field of view confirmation device, 81: Support part, 82: Camera part, 83: Fitting part, 831: Fitting leg, 832: Fitting bottom, 84: Light-shielding tube, 841: Opening, 85: Weight,
V sensing visual field, V1 visual field
Claims (4)
異常感知器の設置位置又は設置予定位置に配置することが可能な支持部と、
前記支持部に支持され、異常感知器の感知視野に対応する感知視野画像を取得するカメラ部と、を備え、
前記カメラ部の前方に、前記感知視野に相当する大きさの開口が設けられていることを特徴とする異常感知器の感知視野確認装置。 It is a different device from an abnormality detector,
a support part that can be placed at an installation position or a planned installation position of the abnormality detector;
a camera unit supported by the support unit and adapted to acquire a sensing field image corresponding to the sensing field of the anomaly detector;
A detection field confirmation device for an anomaly detector, characterized in that an opening having a size corresponding to the detection field is provided in front of the camera unit.
既設の異常感知器の感知視野がある方向である、既設の異常感知器におけるセンサーの前方に前記カメラ部が位置するように、既設の異常感知器に篏合する嵌合部を備え、
前記嵌合部を異常感知器に篏合することで、前記カメラ部の視野が既設の異常感知器の感知視野と略一致することを特徴とする請求項１に記載された異常感知器の感知視野確認装置。 The support portion is
a fitting portion that fits into the existing anomaly detector so that the camera portion is positioned in front of the sensor of the existing anomaly detector, which is in the direction of the detection field of the existing anomaly detector;
2. The anomaly detector detection field confirmation device according to claim 1, wherein the field of view of the camera unit substantially coincides with the detection field of the existing anomaly detector by engaging the fitting portion with the anomaly detector.
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| JP2001014570A (en) | 1999-04-28 | 2001-01-19 | Nittan Co Ltd | Fire sensor |
| JP2001297387A (en) | 2000-04-12 | 2001-10-26 | Nittan Co Ltd | Device and method for checking appearance of disaster prevention equipment |
| JP2002367047A (en) | 2001-06-13 | 2002-12-20 | Hochiki Corp | Sensor device with video monitoring function |
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| JP2001014570A (en) | 1999-04-28 | 2001-01-19 | Nittan Co Ltd | Fire sensor |
| JP2001297387A (en) | 2000-04-12 | 2001-10-26 | Nittan Co Ltd | Device and method for checking appearance of disaster prevention equipment |
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