JP3816331B2 - Passenger detection device for passenger conveyor - Google Patents

Passenger detection device for passenger conveyor Download PDF

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Publication number
JP3816331B2
JP3816331B2 JP2000361092A JP2000361092A JP3816331B2 JP 3816331 B2 JP3816331 B2 JP 3816331B2 JP 2000361092 A JP2000361092 A JP 2000361092A JP 2000361092 A JP2000361092 A JP 2000361092A JP 3816331 B2 JP3816331 B2 JP 3816331B2
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light
passenger
detection
synchronous communication
ranges
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JP2002160885A (en
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正博 鹿井
一 仲嶋
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

【0001】
【発明の属する技術分野】
この発明は、エスカレータや動く歩道などの乗客コンベアに設けられ、乗降口付近の乗客の有無を検出する乗客コンベアの乗客検出装置に関するものである。
【0002】
【従来の技術】
従来、特開平6−87592号公報には、それぞれ投光器と受光器とからなる光センサを左右の欄干先端部にそれぞれ設け、左右の投光器からのビームを乗降口で交差させ、左右両方の光センサで乗客が検出されたときに乗客コンベアを起動する制御方法が示されている。また、この例では、ビーム交差位置の異なる複数対の光センサが用いられ、これにより複数の位置での乗客の有無が検出される。
【0003】
また、特開平10−182050号公報には、反射光検出式の光センサを左右の欄干に設け、それぞれの光センサにより乗降口の床板上を監視する乗客監視装置が示されている。
【0004】
【発明が解決しようとする課題】
上記のような従来の乗客コンベアの乗客検出装置では、複数の位置における乗客の有無を検出することができるものの、ある程度の広さを有する複数の検出範囲における乗客の有無を明確に区別して検出することは難しかった。
【0005】
この発明は、上記のような問題点を解決することを課題としてなされたものであり、複数の検出範囲における乗客の有無をより明確に区別して検出することができる乗客コンベアの乗客検出装置を得ることを目的とする。
【0006】
【課題を解決するための手段】
この発明に係る乗客コンベアの乗客検出装置は、乗客コンベアの乗降口付近の乗客の有無を検出する反射光式のものであって、乗降口の一側に配置され、少なくとも1つの投光器を有する第1の光センサ装置、及び乗降口の他側に配置され、少なくとも1つの受光器を有する第2の光センサ装置を備え、第1の光センサ装置による検出光の投光範囲及び第2の光センサ装置による反射光の受光範囲の少なくともいずれか一方は、水平方向の位置が異なる複数の範囲に切換可能となっており、これにより複数の検出範囲内の乗客の有無をそれぞれ検出可能となっており、検出光の投光及び反射光の受光を同期させるための同期通信光を発信する同期通信発信部と、同期通信光を受信する同期通信受信部とのいずれか一方が、第1の光センサ装置に配置され、第2の光センサ装置には、同期通信発信部と同期通信受信部とのいずれか他方が配置されており、乗客による同期通信光の遮断を検出し、検出信号を出力する遮断検出部が、同期通信受信部に接続されているものである。
【0010】
さらに、この発明に係る乗客コンベアの乗客検出装置は、投光範囲の異なる複数の投光器が第1の光センサ装置に配置されており、各投光器からの投光のタイミングをずらすことにより共通の受光器で複数の検出範囲毎に乗客の有無を検出するものである。
【0011】
さらにまた、この発明に係る乗客コンベアの乗客検出装置は、第1の光センサ装置に受光器を配置し、第2の光センサ装置には、投光範囲の異なる複数の投光器を配置したものである。
【0012】
また、この発明に係る乗客コンベアの乗客検出装置は、投光器及び受光器の少なくともいずれか一方を回動可能とし、これにより投光範囲及び受光範囲の少なくともいずれか一方が水平方向へ移動され切り換えられるようにしたものである。
【0013】
さらに、この発明に係る乗客コンベアの乗客検出装置は、乗客コンベアの乗降口付近の乗客の有無を検出する反射光式のものであって、乗降口の一側に配置され、少なくとも1つの投光器を有する第1の光センサ装置、及び乗降口の他側に配置され、少なくとも複数の受光器を有する第2の光センサ装置を備え、投光器による検出光の投光範囲及び受光器による反射光の受光範囲を垂直に投影したときの形状はそれぞれ扇形であり、複数の受光器による受光範囲は、水平方向の位置が互いに異なっており、これにより複数の検出範囲内の乗客の有無をそれぞれ検出可能となっているものであり、第1の光センサ装置には、検出光の投光及び反射光の受光を同期させるための同期通信光を発信する同期通信発信部と、同期通信光を受信する同期通信受信部とのいずれか一方が配置され、第2の光センサ装置には、同期通信発信部と同期通信受信部とのいずれか他方が配置されており、乗客による同期通信光の遮断を検出し、検出信号を出力する遮断検出部が、同期通信受信部に接続されているものである。
【0014】
さらまたに、この発明に係る乗客コンベアの乗客検出装置は、投光器の光源として発光ダイオードを用いたものである。
【0015】
【発明の実施の形態】
以下、この発明の実施の形態を図について説明する。
実施の形態1.
図1はこの発明の実施の形態1による乗客コンベアの乗降口と乗客検出装置の検出範囲とを示す平面図、図2は図1とは異なる検出範囲とを示す平面図、図3は図1の乗降口を示す側面図である。
【0016】
図において、一対の欄干1には、それぞれ移動手摺2が設けられている。各欄干1の手摺引込口3の下部には、乗客検出装置の第1及び第2の光センサ装置4,5が配置されている。
【0017】
図4は実施の形態1による乗客検出装置を一部ブロックで示す構成図である。図において、第1の光センサ装置4は、検出光を投光する第1及び第2の投光器11,12、検出光の反射光を受光する第1の受光器13、第1の受光部13からの電気信号を処理して乗客の有無を判定し検出信号を出力する第1の判定部14、同期信号である同期通信光Sを発信する同期通信発信部15、及び第1の制御部16を有している。投光器11,12、第1の判定部14及び同期通信発信部15は、第1の制御部16により制御される。
【0018】
第2の光センサ装置5は、検出光を投光する第3及び第4の投光器21,22、検出光の反射光を受光する第2の受光器23、第2の受光部23からの電気信号を処理して乗客の有無を判定し検出信号を出力する第2の判定部24、同期通信光Sを受信する同期通信受信部25、及び第2の制御部26を有している。投光器21,22、第2の判定部24及び同期通信受信部25は、第2の制御部26により制御される。
【0019】
第1ないし第4の投光器11,12,21,22は、それぞれ発光ダイオードを有している。投光器11,12,21,22の投光範囲L11,L12,L21,L22及び受光器13,23の受光範囲R13,R23を垂直に投影したときの形状は、それぞれ扇形である。投光範囲L11,L12,L21,L22は、水平方向の位置が互いに異なっている。
【0020】
図1に示すように、投光範囲L11と受光範囲R23とが重なった範囲が第1の検出範囲D1、投光範囲L12と受光範囲R23とが重なった範囲が第2の検出範囲D2となる。また、図2に示すように、投光範囲L21と受光範囲R13とが重なった範囲が第3の検出範囲D3、投光範囲L22と受光範囲R13とが重なった範囲が第4の検出範囲D4となる。
【0021】
次に、動作について説明する。まず、第1の制御部16からの指令により、同期通信発信部15から同期通信光Sが発信される。同期通信光Sは同期通信受信部25で受信され、これにより第2の制御部26の動作タイミングが第1の制御部16に同期される。
【0022】
乗客検出動作においては、まず第1の投光器11から検出光が投光され、その反射光は第2の受光器23により受光される。そして、反射光の光量から、第2の判定部24により第1の検出範囲D1内の乗客の有無が判定され、乗客コンベアの制御装置(図示せず)に検出信号が出力される。
【0023】
次に、第2の投光器12から検出光が投光され、その反射光が第2の受光器23により受光される。そして、第2の判定部24により第2の検出範囲D2内の乗客の有無が判定され、検出信号が出力される。
【0024】
次に、第3の投光器21から検出光が投光され、その反射光が第1の受光器13により受光される。そして、第1の判定部14により第3の検出範囲D3内の乗客の有無が判定され、検出信号が出力される。この後、第4の投光器22から検出光が投光され、その反射光が第1の受光器13により受光される。そして、第1の判定部14により第4の検出範囲D4内の乗客の有無が判定され、検出信号が出力される。
【0025】
上記の同期通信光Sの出力は一定の周期で行われ、投光範囲L11,L12,L21,L22及び受光範囲R13,R23を時間的に順次切り換える動作が繰り返される。従って、第1ないし第4の検出範囲D1〜D4内の乗客の有無が順次繰り返し検出される。
【0026】
このような乗客検出装置によれば、投光範囲L11,L12,L21,L22及び受光範囲R13,R23を時間的に順次切り換えることにより、第1ないし第4の検出範囲D1〜D4内の乗客の有無を時間的に切り換えながら検出するようにしたので、複数の検出範囲D1〜D4における乗客の有無をより明確に区別して検出することができる。
【0027】
また、上下方向の投光範囲及び受光範囲を狭く絞る必要がないため、上下方向の検出範囲を広く確保でき、乗客に対して上下方向に広範囲に検出光を照射することができる。これにより、被照射部の素材の違いによる反射光量の変化の影響を低減でき、検出精度を向上させることができる。
【0028】
さらに、投光範囲L11,L12,L21,L22及び受光範囲R13,R23の切換により、検出範囲D1〜D4を区別しているので、検出光の光源として、指向性の高いレーザ光を用いる必要がなく、安全上の出力制限がなく寿命に優れた発光ダイオードを用いることができる。さらにまた、全ての投光器11,12,21,22の検出光の波長や変調周波数を同一にすることができ、低価格化及び小形化が可能である。
【0029】
また、第1の光センサ装置4と第2の光センサ装置5とを同期させるための同期信号として同期通信光Sを用いたので、信号線を配線する必要がなく、信号線施設の手間及びコストを削減することができ、かつ乗客コンベアへの設置を容易にすることができる。
【0030】
さらに、第1及び第2の光センサ装置4,5の両方に、複数の投光器11,12,21,22と受光器13,23とを配置したので、乗降口の両側から乗客を検出することができ、検出精度を向上させることができる。
【0031】
ここで、検出光は、検出範囲D1〜D4内に壁、柱、床などの構造物、及び植木鉢、柵などの障害物によっても反射される。従って、判定部14,24では、乗客がいないときでも受光器13,23に入射される反射光量を含んだ受光量を基準値とする。そして、受光量が基準値から予め設定された閾値以上増加したときに、判定部14,24により検出範囲内に乗客有りと判定される。また、受光量が基準値から予め設定された閾値以上減少したときにも、判定部14,24により検出範囲内に乗客有りと判定されるようにしてもよい。
【0032】
また、同期通信光Sにより第1及び第2センサ装置4,5を同期させる場合、乗客により同期通信光Sが遮断されることがある。このような同期通信光の一時的な遮断に対しては、遮断前の投光及び受光の周期を維持するようにすればよい。
【0033】
なお、実施の形態1では、検出範囲D1〜D4の順に検出を行ったが、順番は特に限定されない。
また、実施の形態1では、4つの投光器11,12,21,22を用い、4箇所の検出範囲D1〜D4の検出を行ったが、検出範囲は、2箇所のみ、3箇所、又は5箇所以上としてもよい。
【0034】
さらに、実施の形態1では、2箇所の投光範囲に1箇所の受光範囲を対応させたが、複数箇所の受光範囲に1箇所の投光範囲を対応させてもよい。例えば、図1の範囲R23を投光範囲とし、範囲L11,L12を受光範囲としてもよい。この場合、検出範囲D1,D2内の乗客の有無を同時に検出することも可能である。即ち、複数箇所の受光範囲に1箇所の投光範囲を対応させた場合、検出範囲の時間的な切換を行わなくても、複数の検出範囲内の乗客の有無を検出することができる。
【0035】
さらにまた、実施の形態1では、同期信号として同期通信光Sを用いたが、第1及び第2の光センサ装置4,5間を配線で接続し、電気信号により同期させてもよい。
【0036】
また、実施の形態1では、投光範囲の異なる複数の投光器を用いたが、例えば1つの投光器を回動させることにより、投光範囲を水平方向へ移動させて切り換えるようにしてもよい。同様に、受光器を回動させることにより、受光範囲を水平方向へ移動させて切り換えることも可能である。
【0037】
さらに、実施の形態1では、手摺引込口3の下部に第1及び第2の光センサ装置4,5を配置したが、例えば図5に示すように、一対の欄干1の手摺反転部の側面に配置してもよい。
さらにまた、実施の形態1では、投光器の光源として発光ダイオードを用いたが、例えばランプ等を使用してもよい。
【0038】
実施の形態2.
次に、図6はこの発明の実施の形態2による乗客コンベアの乗客検出装置を一部ブロックで示す構成図である。第2の光センサ装置5において、同期通信受信部25及び第2の制御部26には、同期通信光Sの遮断を検出する遮断検出部27が接続されている。他の構成は、実施の形態1と同様である。
【0039】
このような乗客検出装置では、同期通信光Sが乗客により遮断されると、遮断検出部27により遮断が検出され、乗客コンベアの制御装置に検出信号が出力される。このため、同期通信光Sを利用して乗客が通過したことを検出することができる。
【0040】
【発明の効果】
以上説明したように、この発明の乗客コンベアの乗客検出装置は、第1の光センサ装置による検出光の投光範囲及び第2の光センサ装置による反射光の受光範囲の少なくともいずれか一方を、水平方向の位置が異なる複数の範囲に切換可能とし、これにより複数の検出範囲内の乗客の有無をそれぞれ検出するようにしたので、複数の検出範囲における乗客の有無をより明確に区別して検出することができる。また、上下方向の投光範囲及び受光範囲を狭く絞る必要がないため、上下方向の検出範囲を広く確保でき、乗客に対して広範囲に検出光を照射することができ、検出精度を向上させることができる。さらに、投光範囲や受光範囲の切換により複数の検出範囲を区別しているので、検出光の光源として、指向性の高いレーザ光を用いる必要がなく、安全上の出力制限がなく寿命に優れる光源を選択することができる。さらにまた、検出光の投光及び反射光の受光を同期通信光により同期させたため、検出精度及び信頼性を向上させることができる。また、同期通信光を用いたので、配線のための手間やコストを削減することができ、乗客コンベアへの設置を容易にすることができる。
【0043】
さらに、この発明の乗客コンベアの乗客検出装置は、乗客による同期通信光の遮断を検出し、検出信号を出力する遮断検出部を、同期通信受信部に接続したので、同期通信光を利用して乗客の通過を検出することができる。
【0044】
さらにまた、この発明の乗客コンベアの乗客検出装置は、投光範囲の異なる複数の投光器が第1の光センサ装置に配置されており、各投光器からの投光のタイミングをずらすことにより共通の受光器で複数の検出範囲毎に乗客の有無を検出するので、複数の検出範囲における乗客の有無をより明確に区別して検出することができる。
【0045】
また、この発明の乗客コンベアの乗客検出装置は、第1及び第2の光センサ装置の両方に、複数の投光器と受光器とを配置したので、乗降口の両側から乗客を検出することができ、検出精度を向上させることができる。
【0046】
さらに、この発明の乗客コンベアの乗客検出装置は、投光器及び受光器の少なくともいずれか一方を回動可能とし、これにより投光範囲及び受光範囲の少なくともいずれか一方が水平方向へ移動され切り換えられるようにしたので、複数の検出範囲における乗客の有無をより明確に区別して検出することができる。
【0047】
さらにまた、この発明の乗客コンベアの乗客検出装置は、投光器による検出光の投光範囲及び受光器による反射光の受光範囲を垂直に投影したときの形状をそれぞれ扇形とし、複数の受光器による受光範囲を、水平方向の位置が互いに異なるようにし、これにより複数の検出範囲内の乗客の有無をそれぞれ検出するようにしたので、複数の検出範囲における乗客の有無をより明確に区別して検出することができる。
【0048】
また、この発明の乗客コンベアの乗客検出装置は、投光器の光源として発光ダイオードを用いたので、コストを削減し、長寿命化を図ることができる。
【図面の簡単な説明】
【図1】 この発明の実施の形態1による乗客コンベアの乗降口と乗客検出装置の検出範囲とを示す平面図である。
【図2】 図1とは異なる検出範囲とを示す平面図である。
【図3】 図1の乗降口を示す側面図である。
【図4】 実施の形態1による乗客検出装置を一部ブロックで示す構成図である。
【図5】 実施の形態1による乗客検出装置の他の配置例を示す平面図である。
【図6】 この発明の実施の形態2による乗客コンベアの乗客検出装置を一部ブロックで示す構成図である。
【符号の説明】
4 第1の光センサ装置、5 第2の光センサ装置、11 第1の投光器、12 第2の投光器、13 第1の受光器、15 同期通信発信部、21 第3の投光器、22 第4の投光器、23 第2の受光器、25 同期通信受信部、27 遮断検出部。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a passenger detection device for a passenger conveyor that is provided on a passenger conveyor such as an escalator or a moving sidewalk and detects the presence or absence of passengers near the entrance.
[0002]
[Prior art]
Conventionally, Japanese Patent Laid-Open No. 6-87592 discloses a light sensor comprising a light projector and a light receiver at the front and rear ends of the right and left balustrades. Shows a control method for activating a passenger conveyor when a passenger is detected. Further, in this example, a plurality of pairs of optical sensors having different beam crossing positions are used, thereby detecting the presence or absence of passengers at a plurality of positions.
[0003]
Japanese Laid-Open Patent Publication No. 10-182050 discloses a passenger monitoring device in which reflected light detection type optical sensors are provided on the right and left railings and the respective light sensors are used to monitor the floor board of the entrance / exit.
[0004]
[Problems to be solved by the invention]
The conventional passenger detection device for passenger conveyors as described above can detect the presence or absence of passengers at a plurality of positions, but clearly detects the presence or absence of passengers in a plurality of detection ranges having a certain extent. That was difficult.
[0005]
The present invention has been made to solve the above-described problems, and provides a passenger detection device for a passenger conveyor capable of more clearly distinguishing and detecting the presence or absence of passengers in a plurality of detection ranges. For the purpose.
[0006]
[Means for Solving the Problems]
A passenger detection device for a passenger conveyor according to the present invention is of a reflected light type that detects the presence or absence of passengers near the entrance / exit of the passenger conveyor, and is disposed on one side of the entrance / exit and has at least one projector. 1 photosensor device, and a second photosensor device that is disposed on the other side of the entrance and exit and has at least one light receiver, and a light projection range and second light of the detection light by the first photosensor device At least one of the light receiving ranges of the reflected light by the sensor device can be switched to a plurality of ranges having different positions in the horizontal direction, thereby detecting the presence or absence of passengers in the plurality of detection ranges, respectively. And either one of the synchronous communication transmitter for transmitting the synchronous communication light for synchronizing the detection light projection and the reflected light reception and the synchronous communication receiver for receiving the synchronous communication light is the first light. Sensor device Are arranged, the second optical sensor device, is arranged a the other of the synchronous communication transmitter unit and a synchronous communication receiving unit detects the interruption of synchronous communication light by the passenger, detecting cutoff for outputting a detection signal Are connected to the synchronous communication receiver.
[0010]
Furthermore, in the passenger detection device for a passenger conveyor according to the present invention, a plurality of light projectors having different light projection ranges are arranged in the first light sensor device, and a common light reception is performed by shifting the timing of light projection from each light projector. The presence / absence of passengers is detected for each of a plurality of detection ranges.
[0011]
Furthermore, in the passenger detection device for a passenger conveyor according to the present invention, a light receiver is disposed in the first light sensor device, and a plurality of light projectors having different light projection ranges are disposed in the second light sensor device. is there.
[0012]
The passenger detection device for a passenger conveyor according to the present invention can turn at least one of a light projector and a light receiver so that at least one of the light projection range and the light reception range is moved and switched in the horizontal direction. It is what I did.
[0013]
Furthermore, the passenger detection device for a passenger conveyor according to the present invention is of a reflected light type that detects the presence or absence of passengers near the entrance / exit of the passenger conveyor, and is disposed on one side of the entrance / exit, and includes at least one projector. A first optical sensor device having a second optical sensor device disposed on the other side of the entrance and having at least a plurality of light receivers, and a light projecting range of light detected by the light projector and reception of reflected light by the light receiver. The shape when the range is projected vertically is a fan shape, and the light receiving range by the plurality of light receivers is different in horizontal position from each other, so that it is possible to detect the presence or absence of passengers in the plurality of detection ranges, respectively The first optical sensor device includes a synchronous communication transmitter for transmitting synchronous communication light for synchronizing detection light projection and reflected light reception, and synchronous communication light reception synchronization. Is either one arrangement of the signal receiving portion, the second optical sensor device, is arranged a the other of the synchronous communication transmitter unit and the synchronous communication receiver, detecting the interruption of synchronous communication light by passengers And the interruption | blocking detection part which outputs a detection signal is connected to the synchronous communication receiving part.
[0014]
Furthermore, the passenger detection device for a passenger conveyor according to the present invention uses a light emitting diode as a light source of a projector.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a plan view showing the entrance and exit of a passenger conveyor and a detection range of a passenger detection device according to Embodiment 1 of the present invention, FIG. 2 is a plan view showing a detection range different from FIG. 1, and FIG. It is a side view which shows the entrance / exit.
[0016]
In the figure, a pair of balustrades 1 are provided with moving handrails 2 respectively. The first and second photosensor devices 4 and 5 of the passenger detection device are disposed below the handrail inlet 3 of each balustrade 1.
[0017]
FIG. 4 is a block diagram showing the passenger detection device according to the first embodiment in a partial block. In the figure, a first optical sensor device 4 includes first and second light projectors 11 and 12 that project detection light, a first light receiver 13 that receives reflected light of detection light, and a first light receiver 13. The first determination unit 14 that processes the electrical signal from the vehicle to determine the presence or absence of a passenger and outputs a detection signal, the synchronous communication transmission unit 15 that transmits the synchronous communication light S that is a synchronization signal, and the first control unit 16 have. The projectors 11 and 12, the first determination unit 14, and the synchronous communication transmission unit 15 are controlled by the first control unit 16.
[0018]
The second optical sensor device 5 includes electricity from the third and fourth projectors 21 and 22 that project detection light, the second light receiver 23 that receives reflected light of the detection light, and the second light receiver 23. It has the 2nd determination part 24 which processes a signal, determines the presence or absence of a passenger, and outputs a detection signal, the synchronous communication receiving part 25 which receives the synchronous communication light S, and the 2nd control part 26. The projectors 21 and 22, the second determination unit 24, and the synchronous communication reception unit 25 are controlled by the second control unit 26.
[0019]
The first to fourth projectors 11, 12, 21, and 22 each have a light emitting diode. The shapes when the light projection ranges L11, L12, L21, and L22 of the light projectors 11, 12, 21, and 22 and the light reception ranges R13 and R23 of the light receivers 13 and 23 are vertically projected are fan shapes. The light projection ranges L11, L12, L21, and L22 have different horizontal positions.
[0020]
As shown in FIG. 1, the first detection range D1 is a range where the light projection range L11 and the light reception range R23 overlap, and the second detection range D2 is a range where the light projection range L12 and the light reception range R23 overlap. . In addition, as shown in FIG. 2, the range where the light projection range L21 and the light reception range R13 overlap is the third detection range D3, and the range where the light projection range L22 and the light reception range R13 overlap is the fourth detection range D4. It becomes.
[0021]
Next, the operation will be described. First, the synchronous communication light S is transmitted from the synchronous communication transmitter 15 in accordance with a command from the first controller 16. The synchronous communication light S is received by the synchronous communication receiver 25, whereby the operation timing of the second controller 26 is synchronized with the first controller 16.
[0022]
In the passenger detection operation, first, detection light is projected from the first projector 11, and the reflected light is received by the second light receiver 23. And the presence or absence of the passenger in the 1st detection range D1 is determined by the 2nd determination part 24 from the light quantity of reflected light, and a detection signal is output to the control apparatus (not shown) of a passenger conveyor.
[0023]
Next, detection light is projected from the second light projector 12, and the reflected light is received by the second light receiver 23. And the presence or absence of the passenger in the 2nd detection range D2 is determined by the 2nd determination part 24, and a detection signal is output.
[0024]
Next, detection light is projected from the third projector 21, and the reflected light is received by the first light receiver 13. And the presence or absence of the passenger in the 3rd detection range D3 is determined by the 1st determination part 14, and a detection signal is output. Thereafter, detection light is projected from the fourth projector 22, and the reflected light is received by the first light receiver 13. And the presence or absence of the passenger in the 4th detection range D4 is determined by the 1st determination part 14, and a detection signal is output.
[0025]
The output of the synchronous communication light S is performed at a constant cycle, and the operation of sequentially switching the light projection ranges L11, L12, L21, L22 and the light receiving ranges R13, R23 in time is repeated. Therefore, the presence / absence of passengers in the first to fourth detection ranges D1 to D4 is sequentially and repeatedly detected.
[0026]
According to such a passenger detection device, by sequentially switching the light projection ranges L11, L12, L21, L22 and the light receiving ranges R13, R23 in time, passengers in the first to fourth detection ranges D1 to D4 Since the presence / absence is detected while switching over time, the presence / absence of passengers in the plurality of detection ranges D1 to D4 can be more clearly distinguished and detected.
[0027]
In addition, since it is not necessary to narrow down the light projecting range and light receiving range in the vertical direction, a wide vertical detection range can be secured, and the passenger can be irradiated with detection light in a wide range in the vertical direction. Thereby, the influence of the change of the reflected light amount by the difference in the material of an irradiated part can be reduced, and detection accuracy can be improved.
[0028]
Furthermore, since the detection ranges D1 to D4 are distinguished by switching the light projection ranges L11, L12, L21, L22 and the light receiving ranges R13, R23, there is no need to use highly directional laser light as a light source for detection light. Therefore, a light emitting diode having no safety output limitation and having a long life can be used. Furthermore, the wavelength and the modulation frequency of the detection light of all the projectors 11, 12, 21, and 22 can be made the same, and the price and size can be reduced.
[0029]
In addition, since the synchronous communication light S is used as a synchronization signal for synchronizing the first optical sensor device 4 and the second optical sensor device 5, there is no need to wire a signal line, Cost can be reduced and installation on a passenger conveyor can be facilitated.
[0030]
Furthermore, since the plurality of projectors 11, 12, 21, and 22 and the light receivers 13 and 23 are arranged in both the first and second optical sensor devices 4 and 5, the passengers are detected from both sides of the entrance / exit. And detection accuracy can be improved.
[0031]
Here, the detection light is also reflected in the detection ranges D1 to D4 by structures such as walls, pillars, and floors, and obstacles such as flowerpots and fences. Accordingly, the determination units 14 and 24 use the received light amount including the reflected light amount incident on the light receivers 13 and 23 as a reference value even when there is no passenger. When the amount of received light increases from the reference value by a predetermined threshold or more, the determination units 14 and 24 determine that there is a passenger in the detection range. The determination units 14 and 24 may also determine that there is a passenger in the detection range even when the amount of received light has decreased from a reference value by a preset threshold value or more.
[0032]
Moreover, when synchronizing the 1st and 2nd sensor apparatuses 4 and 5 with the synchronous communication light S, the synchronous communication light S may be interrupted | blocked by the passenger. What is necessary is just to maintain the period of the light projection and light reception before interruption | blocking with respect to such interruption | blocking of synchronous communication light temporarily.
[0033]
In the first embodiment, detection is performed in the order of the detection ranges D1 to D4, but the order is not particularly limited.
In the first embodiment, four detection ranges D1 to D4 are detected using the four projectors 11, 12, 21, and 22. However, the detection ranges are only two, three, or five. It is good also as above.
[0034]
Furthermore, in the first embodiment, one light receiving range is associated with two light projecting ranges, but one light projecting range may be associated with a plurality of light receiving ranges. For example, the range R23 in FIG. 1 may be the light projection range, and the ranges L11 and L12 may be the light reception range. In this case, it is also possible to simultaneously detect the presence or absence of passengers in the detection ranges D1, D2. That is, when one light projection range is associated with a plurality of light receiving ranges, it is possible to detect the presence or absence of passengers in the plurality of detection ranges without performing temporal switching of the detection ranges.
[0035]
Furthermore, in the first embodiment, the synchronous communication light S is used as the synchronization signal. However, the first and second optical sensor devices 4 and 5 may be connected by wiring and may be synchronized by an electric signal.
[0036]
In the first embodiment, a plurality of projectors having different projection ranges are used. However, for example, by rotating one projector, the projection range may be moved and switched in the horizontal direction. Similarly, by rotating the light receiver, the light receiving range can be moved and switched in the horizontal direction.
[0037]
Furthermore, in Embodiment 1, although the 1st and 2nd optical sensor apparatus 4 and 5 was arrange | positioned in the lower part of the handrail drawing port 3, as shown, for example in FIG. 5, the side surface of the handrail inversion part of a pair of balustrades 1 You may arrange in.
Furthermore, although the light emitting diode is used as the light source of the projector in the first embodiment, for example, a lamp or the like may be used.
[0038]
Embodiment 2. FIG.
Next, FIG. 6 is a block diagram partially showing a passenger detection device for a passenger conveyor according to Embodiment 2 of the present invention. In the second optical sensor device 5, the synchronous communication receiving unit 25 and the second control unit 26 are connected to a blocking detection unit 27 that detects blocking of the synchronous communication light S. Other configurations are the same as those in the first embodiment.
[0039]
In such a passenger detection device, when the synchronous communication light S is interrupted by the passenger, the interruption detection unit 27 detects the interruption and outputs a detection signal to the passenger conveyor control device. For this reason, it is possible to detect that the passenger has passed using the synchronous communication light S.
[0040]
【The invention's effect】
As described above, the passenger detection device of the passenger conveyor of the present invention has at least one of the light projection range of the detection light by the first photosensor device and the light reception range of the reflected light by the second photosensor device, Since it is possible to switch to a plurality of ranges with different horizontal positions, thereby detecting the presence or absence of passengers in a plurality of detection ranges, the presence or absence of passengers in a plurality of detection ranges is more clearly distinguished and detected. be able to. In addition, since there is no need to narrow down the light projecting range and the light receiving range in the vertical direction, it is possible to secure a wide vertical detection range, irradiate the passenger with a wide range of detection light, and improve detection accuracy. Can do. In addition, since multiple detection ranges are distinguished by switching between the light projection range and the light reception range, there is no need to use highly directional laser light as the light source for detection light, and there is no safety output limitation and excellent lifespan. Can be selected. Furthermore, since detection light projection and reflected light reception are synchronized by synchronous communication light, detection accuracy and reliability can be improved. In addition, since synchronous communication light is used, labor and cost for wiring can be reduced, and installation on a passenger conveyor can be facilitated.
[0043]
Furthermore, the passenger detection device of the passenger conveyor according to the present invention detects the interruption of the synchronous communication light by the passenger and connects the interruption detection unit that outputs the detection signal to the synchronous communication reception unit. Passenger passage can be detected.
[0044]
Furthermore, in the passenger detection device for a passenger conveyor according to the present invention, a plurality of projectors having different projection ranges are arranged in the first optical sensor device, and a common light reception is achieved by shifting the timing of projection from each projector. Since the presence / absence of passengers is detected for each of a plurality of detection ranges by the device, the presence / absence of passengers in the plurality of detection ranges can be more clearly distinguished and detected.
[0045]
Moreover, since the passenger detection apparatus of the passenger conveyor of this invention has arrange | positioned the some projector and light receiver in both the 1st and 2nd optical sensor apparatus, it can detect a passenger from both sides of a boarding / exiting gate. , Detection accuracy can be improved.
[0046]
Furthermore, the passenger detection device for a passenger conveyor according to the present invention can turn at least one of the light projector and the light receiver so that at least one of the light projection range and the light reception range is moved and switched in the horizontal direction. Therefore, the presence or absence of passengers in a plurality of detection ranges can be more clearly distinguished and detected.
[0047]
Furthermore, the passenger detection device of the passenger conveyor according to the present invention is configured such that the shapes when the light projection range of the detection light by the projector and the light reception range of the reflected light by the light receiver are vertically projected are fan shapes, and light reception by a plurality of light receivers. The range is set so that the horizontal positions are different from each other, thereby detecting the presence or absence of passengers in a plurality of detection ranges, so that the presence or absence of passengers in a plurality of detection ranges is more clearly distinguished and detected. Can do.
[0048]
In addition, the passenger detection device for a passenger conveyor according to the present invention uses a light emitting diode as a light source of a projector, so that the cost can be reduced and the life can be extended.
[Brief description of the drawings]
FIG. 1 is a plan view showing a passenger conveyor entrance and a detection range of a passenger detection device according to Embodiment 1 of the present invention;
FIG. 2 is a plan view showing a detection range different from FIG.
FIG. 3 is a side view showing the entrance / exit of FIG. 1;
FIG. 4 is a block diagram showing a passenger detection device according to Embodiment 1 in a part of blocks.
FIG. 5 is a plan view showing another arrangement example of the passenger detection device according to the first embodiment.
FIG. 6 is a block diagram showing, in part, a block diagram of a passenger detection device for a passenger conveyor according to Embodiment 2 of the present invention.
[Explanation of symbols]
4 1st optical sensor apparatus, 5 2nd optical sensor apparatus, 11 1st light projector, 12 2nd light projector, 13 1st light receiver, 15 synchronous communication transmission part, 21 3rd light projector, 22 4th Projector, 23 second light receiver, 25 synchronous communication receiver, 27 block detector.

Claims (6)

乗客コンベアの乗降口付近の乗客の有無を検出する反射光式の乗客コンベアの乗客検出装置であって、
上記乗降口の一側に配置され、少なくとも1つの投光器を有する第1の光センサ装置、及び
上記乗降口の他側に配置され、少なくとも1つの受光器を有する第2の光センサ装置
を備え、上記第1の光センサ装置による検出光の投光範囲及び上記第2の光センサ装置による反射光の受光範囲の少なくともいずれか一方は、水平方向の位置が異なる複数の範囲に切換可能となっており、これにより複数の検出範囲内の乗客の有無をそれぞれ検出可能となっており、
上記第1の光センサ装置には、検出光の投光及び反射光の受光を同期させるための同期通信光を発信する同期通信発信部と、上記同期通信光を受信する同期通信受信部とのいずれか一方が配置され、上記第2の光センサ装置には、上記同期通信発信部と上記同期通信受信部とのいずれか他方が配置されており、
同期通信受信部には、乗客による同期通信光の遮断を検出し、検出信号を出力する遮断検出部が接続されていることを特徴とする乗客コンベアの乗客検出装置。
A passenger detection device for a reflected light type passenger conveyor that detects the presence or absence of passengers near the entrance of a passenger conveyor,
A first optical sensor device disposed on one side of the entrance / exit and having at least one projector; and a second optical sensor device disposed on the other side of the entrance / exit and having at least one light receiver; At least one of the light projection range of the detection light by the first photosensor device and the light reception range of the reflected light by the second photosensor device can be switched to a plurality of ranges having different horizontal positions. With this, it is possible to detect the presence or absence of passengers within multiple detection ranges,
The first optical sensor device includes a synchronous communication transmitter that transmits synchronous communication light for synchronizing detection light projection and reflected light reception, and a synchronous communication receiver that receives the synchronous communication light. Either one is arranged, and the second photosensor device is arranged with either one of the synchronous communication transmitting unit and the synchronous communication receiving unit ,
A passenger detection device for a passenger conveyor, wherein the synchronous communication receiving unit is connected to a cutoff detection unit that detects a cutoff of synchronous communication light by a passenger and outputs a detection signal .
第1の光センサ装置には、投光範囲の異なる複数の投光器が配置されており、上記各投光器からの投光のタイミングをずらすことにより共通の受光器で複数の検出範囲毎に乗客の有無を検出することを特徴とする請求項1記載の乗客コンベアの乗客検出装置。In the first optical sensor device, a plurality of projectors having different projection ranges are arranged, and the presence or absence of passengers for each of a plurality of detection ranges with a common light receiver by shifting the timing of projection from each of the projectors. The passenger detection device for a passenger conveyor according to claim 1, wherein: 第1の光センサ装置には、受光器が配置されており、第2の光センサ装置には、投光範囲の異なる複数の投光器が配置されていることを特徴とする請求項2記載の乗客コンベアの乗客検出装置。 3. The passenger according to claim 2 , wherein a light receiver is disposed in the first optical sensor device, and a plurality of light projectors having different light projection ranges are disposed in the second optical sensor device. Conveyor passenger detection device. 投光器及び受光器の少なくともいずれか一方は、回動可能になっており、これにより投光範囲及び受光範囲の少なくともいずれか一方が水平方向へ移動され切り換えられることを特徴とする請求項1記載の乗客コンベアの乗客検出装置。Is at least one of the light projector and the light receiver, has become rotatable, thereby according to claim 1, wherein at least one of the light projection range and the light receiving range is characterized in that it is switched moved horizontally Passenger detection device for passenger conveyors. 乗客コンベアの乗降口付近の乗客の有無を検出する反射光式の乗客コンベアの乗客検出装置であって、
上記乗降口の一側に配置され、少なくとも1つの投光器を有する第1の光センサ装置、及び
上記乗降口の他側に配置され、少なくとも複数の受光器を有する第2の光センサ装置
を備え、上記投光器による検出光の投光範囲及び上記受光器による反射光の受光範囲を垂直に投影したときの形状はそれぞれ扇形であり、上記複数の受光器による上記受光範囲は、水平方向の位置が互いに異なっており、これにより複数の検出範囲内の乗客の有無をそれぞれ検出可能となっており、
上記第1の光センサ装置には、検出光の投光及び反射光の受光を同期させるための同期通信光を発信する同期通信発信部と、上記同期通信光を受信する同期通信受信部とのいずれか一方が配置され、上記第2の光センサ装置には、上記同期通信発信部と上記同期通信受信部とのいずれか他方が配置されており、
同期通信受信部には、乗客による同期通信光の遮断を検出し、検出信号を出力する遮断検出部が接続されていることを特徴とする乗客コンベアの乗客検出装置。
A passenger detection device for a reflected light type passenger conveyor that detects the presence or absence of passengers near the entrance of a passenger conveyor,
A first optical sensor device disposed on one side of the entrance / exit and having at least one projector, and a second optical sensor device disposed on the other side of the entrance / exit and having at least a plurality of light receivers, The shape of the light projection range of the detection light by the light projector and the light reception range of the reflected light by the light receiver when projected vertically is a sector shape, and the light reception ranges by the plurality of light receivers are horizontally aligned with each other. It is possible to detect the presence or absence of passengers within multiple detection ranges.
The first optical sensor device includes a synchronous communication transmitter that transmits synchronous communication light for synchronizing detection light projection and reflected light reception, and a synchronous communication receiver that receives the synchronous communication light. Either one is arranged, and the second photosensor device is arranged with either one of the synchronous communication transmitting unit and the synchronous communication receiving unit ,
A passenger detection device for a passenger conveyor, wherein the synchronous communication receiving unit is connected to a cutoff detection unit that detects a cutoff of synchronous communication light by a passenger and outputs a detection signal .
投光器は、発光ダイオードを有していることを特徴とする請求項1ないし請求項5のいずれかに記載の乗客コンベアの乗客検出装置。Emitters, claims 1, characterized in that it has a light-emitting diode occupant detection device of a passenger conveyor according to claim 5.
JP2000361092A 2000-11-28 2000-11-28 Passenger detection device for passenger conveyor Expired - Fee Related JP3816331B2 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US9884749B1 (en) 2016-07-29 2018-02-06 Otis Elevator Company Sensor assembly, security system and passenger conveyor

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JP4056806B2 (en) * 2002-06-28 2008-03-05 三菱電機ビルテクノサービス株式会社 Passenger conveyor automatic operation device
JP4353763B2 (en) * 2003-10-10 2009-10-28 東芝エレベータ株式会社 Automatic operation type man conveyor
JP4401138B2 (en) 2003-10-10 2010-01-20 東芝エレベータ株式会社 Passenger conveyor
JP6819750B2 (en) * 2019-09-17 2021-01-27 フジテック株式会社 Warning device and passenger conveyor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9884749B1 (en) 2016-07-29 2018-02-06 Otis Elevator Company Sensor assembly, security system and passenger conveyor

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