WO2011104818A1 - エレベーター装置 - Google Patents
エレベーター装置 Download PDFInfo
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- WO2011104818A1 WO2011104818A1 PCT/JP2010/052763 JP2010052763W WO2011104818A1 WO 2011104818 A1 WO2011104818 A1 WO 2011104818A1 JP 2010052763 W JP2010052763 W JP 2010052763W WO 2011104818 A1 WO2011104818 A1 WO 2011104818A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0012—Devices monitoring the users of the elevator system
Definitions
- This invention relates to an elevator apparatus having a function of detecting a passenger rampage.
- Patent Documents 1 and 2 As a prior art of an elevator apparatus, one having a function of detecting a ramping motion of a passenger in a car has been proposed (see, for example, Patent Documents 1 and 2). According to the methods described in Patent Documents 1 and 2, by analyzing an image from a camera installed in a car, the amount of variation in the direction and size of passenger movement is calculated, and the calculated amount of variation is a predetermined threshold value. The passenger's rampage movement is detected when exceeding.
- the presence or absence of a ramping operation is determined based on the in-car image taken by the camera. For this reason, it is necessary to set appropriately the said threshold value for determining the presence or absence of a ramping operation for every elevator according to the state in a cage
- the apparatus described in Patent Document 1 is configured such that the threshold value can be corrected from a maintenance terminal carried by an elevator specialist.
- distribution value are made into a database for every door opening / closing state or the kind of a car wall, and a threshold value of a fluctuation
- FIG. 5 is a diagram showing an example of an in-car image.
- the elevator car 1 is made of a stainless steel car wall 1a
- the passenger images 17a and 17b are more easily reflected on the car wall 1a than when the car wall 1a is made of resin.
- the car wall 1a is made of stainless steel, even if the passenger moves in the car 1, the movement of the passenger is detected more than when the car wall 1a is made of resin.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus having a function of detecting a passenger's rampage operation without requiring a dedicated terminal or the like. It is an object of the present invention to provide an elevator apparatus that can accurately set a ramp-up threshold for determining the presence or absence by a simple process.
- An elevator apparatus includes a camera that captures an elevator car, an image recording unit that records an image captured by the camera, one image recorded in the image recording unit, and a predetermined comparison image.
- a luminance value difference detection unit that detects a difference in luminance value for each predetermined detection unit, and a luminance difference that determines whether the luminance difference detected by the luminance value difference detection unit exceeds a predetermined luminance difference threshold value
- a determination unit, a counting unit that counts the number of detection units determined by the luminance difference determination unit when the luminance difference exceeds the luminance difference threshold, and a number of detection units counted by the counting unit has a predetermined rampage threshold.
- An elevator device having a rampage determination unit for determining whether there is a rampant movement of a passenger when the vehicle has exceeded the indicator provided in the car and in a predetermined car state in which no moving object is present in the car table Display a predetermined test image on the container and cause the camera to take an image of the inside of the car, and the difference between the brightness values of the image at that time and the image taken by the camera when in the predetermined car state to the brightness value difference detection unit
- An adjustment operation control unit that causes the counting unit to count the number of detection units in which the luminance difference exceeds the luminance difference threshold value, and a rampage determination based on the number of detection units counted by the counting unit under the control of the adjustment operation control unit And a setting unit that sets a ramp threshold for determining whether or not a ramping operation is performed.
- a rampage threshold for determining the presence or absence of rampage is accurately determined by simple processing without requiring a dedicated device or terminal. Can be set.
- FIG. 1 It is a block diagram which shows the elevator apparatus in Embodiment 1 of this invention. It is a figure which shows the specific structure of the rampage detection apparatus of FIG. It is a flowchart which shows operation
- FIG. FIG. 1 is a configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention
- FIG. 2 is a diagram showing a specific configuration of the rampage detection apparatus of FIG.
- This elevator apparatus is provided with a function of detecting a rampage operation of passengers in the elevator.
- reference numeral 1 denotes a car that moves up and down in the elevator hoistway
- 2 denotes a riot detection device for detecting a violent operation of passengers in the car
- 3 controls operation of the entire elevator such as traveling control of the car 1. It is a control panel.
- a display 4 and a camera 5 are installed in the elevator car 1.
- the indicator 4 is provided to notify predetermined information to passengers in the car 1.
- the display 4 is constituted by a liquid crystal display, for example, and its display is controlled by a control signal from the control panel 3.
- the camera 5 is provided in the car 1 for monitoring, and its photographing direction, angle, etc. are preset so that a predetermined range in the car 1 can be photographed.
- the field of view of the camera 5 is set from the entrance / exit side of the car 1 to the back side so as not to photograph the door of the elevator.
- the image captured by the camera 5 includes a display image of the display device 4 and an image in which the display image of the display device 4 is reflected on the car wall 1a of the car 1 (hereinafter also referred to as “reflection image 4a”). Both or one of them may be included.
- the rampage detection device 2 has a function of detecting a predetermined rampage operation by analyzing the degree of rampage of a moving object in the car 1 based on an image taken by the camera 5.
- the ramp detection device 2 includes an image recording unit 6, a luminance value difference detection unit 7, a luminance difference determination unit 8, a counting unit 9, a ramp determination unit 10, an output unit 11, and a storage.
- the main part is comprised by the part 12, the setting operation control part 13, and the setting part 14.
- the image recording unit 6 is for recording an image photographed by the camera 5. That is, an image photographed by the camera 5 is transmitted to the rampage detection device 2 via a communication line or the like and sequentially recorded in the image recording unit 6.
- the luminance value difference detection unit 7 has a function of detecting a luminance value difference between one image recorded in the image recording unit 6 and a predetermined comparison image for each predetermined detection unit. For example, the luminance value difference detection unit 7 determines the luminance value between the current time t2 (latest) image recorded in the image recording unit 6 and the past image at the predetermined time t1 recorded in the image recording unit 6. The difference is calculated for each pixel.
- the past image used as the comparison image may be an image taken immediately before time t2, or may be an image of a predetermined number of images before thinning out an intermediate image. Further, by adopting images taken at a plurality of past times (t1, t1 ′,...) As comparison control images, the brightness value difference detection unit 7 causes the brightness between the image at time t2 and each past image. An average value difference may be obtained. Further, the average value may be calculated after performing weighting such that the weight becomes larger as the time is closer to the current time t2.
- the luminance value difference detection unit 7 detects a luminance value difference for each pixel.
- the detection unit is not limited to pixels.
- each block obtained by dividing an image into a predetermined size may be set as a detection unit.
- the luminance value difference detection unit 7 detects a difference in luminance value for each divided block.
- the luminance difference determination unit 8 has a function of determining whether or not the luminance difference detected by the luminance value difference detection unit 7 exceeds a predetermined luminance difference threshold value.
- the luminance difference determination unit 8 performs the above determination for each luminance difference detected by the luminance value difference detection unit 7, that is, for each pixel in the present embodiment. Note that the luminance difference threshold value used in the determination is stored in the storage unit 12 in advance.
- the counting unit 9 determines the number of pixels (detection unit) that is determined by the luminance difference determination unit 8 that the luminance difference exceeds the luminance difference threshold for an image (for example, an image at time t2) that is a detection target of the rampage operation.
- the rampage determination unit 10 has a function of determining whether or not the number of pixels counted by the counting unit 9 exceeds a predetermined rampage threshold. When the number of pixels counted by the counting unit 9 exceeds the rampage threshold, the rampage determination unit 10 determines the presence of a passenger rampage. The ramp determination unit 10 determines that there is no ramping operation when the number of pixels counted by the counting unit 9 does not exceed the ramp threshold. Note that the determination result of the rampage determination unit 10 is output from the output unit 11 to the control panel 3. Further, the rampage threshold used in the determination is stored in the storage unit 12 in advance.
- the setting operation control unit 13 has a function of controlling the operation at the time of setting the rampage threshold. The function of the setting operation control unit 13 will be described later.
- the setting unit 14 has a function of appropriately setting the rampage threshold based on the number of pixels (the number of detection units) counted by the counting unit 9 under a predetermined condition. Specifically, when the setting operation of the ramping threshold is started by the control of the setting motion control unit 13, the setting unit 14 determines an appropriate ramping threshold based on the number of pixels counted by the counting unit 9, and the storage unit 12 stored contents are updated. In order to realize such a function, the setting unit 14 includes a car wall determination unit 15 and a threshold setting unit 16.
- FIG. 3 is a flowchart showing the operation of the elevator apparatus according to Embodiment 1 of the present invention
- FIG. 4 is a diagram showing an image photographed when the rampage threshold is set.
- the set operation control unit 13 When the scheduled time for setting the rampage threshold is reached, such as at night when the elevator is not used, the set operation control unit 13 outputs a predetermined operation command.
- the control panel 3 receives the operation command from the setting operation control unit 13, a predetermined test image is displayed on the display 4 in a predetermined state in which there is no moving object in the car 1 and the inside of the car 1 is turned off. Is displayed (S101), and the camera 5 is caused to photograph the interior of the car 1 (S102).
- FIG. 4 shows an example of an image taken by the camera 5 in S102.
- the image of the display 4 is easily reflected on the car wall 1a.
- the image captured by the camera 5 in S102 may include a reflected image 4a displayed on the car wall 1a in addition to the test image displayed on the display 4.
- the luminance value difference detection unit 7 causes the camera 5 when the image captured in S ⁇ b> 102 and the car 1 are in the predetermined state.
- the difference between the brightness values of the image captured by the above (hereinafter also referred to as “comparison image for setting”) is detected.
- the luminance difference determination unit 8 compares the luminance difference threshold value for each pixel (S103), and the counting unit 9 further determines the number of pixels in which the luminance difference exceeds the luminance difference threshold value for the image photographed in S102. Are counted (S104). Note that the functions of the luminance value difference detection unit 7, the luminance difference determination unit 8, and the counting unit 9 at this time are the same as those in the above-described ramp determination.
- the comparative image for setting is generated by the camera 5 when the car 1 is in the predetermined state (that is, no moving object exists in the car 1 and the car 1 is turned off). Acquired by shooting the inside.
- the comparative image for setting may be recorded in advance in the image recording unit 6 or recorded in the image recording unit 6 after the operation command is output from the setting operation control unit 13. There may be.
- the luminance value difference detection unit 7 performs luminance between the image photographed in S102 and the plurality of images. An average value difference may be obtained.
- a predetermined weight may be applied when calculating the average value.
- the setting unit 14 sets a pixel number threshold value (that is, a rampage threshold value) for determining the presence or absence of a rampage operation based on the number of pixels counted in S104 (S105).
- a pixel number threshold value that is, a rampage threshold value
- the car wall determination unit 15 has a function of determining the material of the car wall 1a used in the car 1 based on the number of pixels counted by the counting unit 9. The more the material of the image of the display 4 that is more easily reflected on the car wall 1a, the greater the number of pixels counted in S104. Based on this idea, the car wall determination unit 15 derives the material of the car wall 1 from the number of pixels counted in S104.
- the threshold setting unit 16 has a function of setting an optimal rampage threshold based on the material of the car wall 1a determined by the car wall determining unit 15.
- the threshold setting unit 16 determines the rampage threshold based on the material of the car wall 1a
- the threshold setting unit 16 updates the ramping threshold stored in the storage unit 12 to the newly determined value.
- Table 1 below is a correspondence table in which the relationship between the number of pixels counted by the measuring unit 9 in S104, the material of the car wall 1a, and the rampage threshold is set in advance (VGA, assuming 640 ⁇ 480 pixels). Such a predetermined correspondence table is held in the setting unit 14 (or the storage unit 12).
- the car wall determination unit 15 specifies the material of the car wall 1a based on the number of pixels counted by the measurement unit 9 with reference to the correspondence table. Further, the threshold setting unit 16 selects an optimum rampage threshold with reference to the correspondence table based on the car wall 1a specified by the car wall determination unit 15.
- Table 1 above shows a case where the car wall determination unit 15 determines the shade of the color of the car wall 1a in addition to the material of the car wall 1a based on the count result of the measurement unit 9.
- the threshold setting unit 16 matches the car wall 1a based on both the material of the car wall 1a determined by the car wall determination unit 15 and the color shading. Set the optimal rampage threshold.
- the first embodiment of the present invention it is possible to accurately set the ramp-up threshold for determining the presence or absence of the ramp-up operation without requiring a dedicated terminal or the like.
- the car wall 1a can be specified from the test image displayed on the display 4 and the optimum ramp threshold can be set, so that a specialist engineer can set the ramp threshold. There is no need to prepare a portable maintenance terminal or dedicated terminal. Moreover, in the elevator apparatus of this structure, since the process which calculates the variation amount regarding a moving body is not required, the said setting operation
- the case where the ramping threshold setting operation is performed when the elevator cannot be used, such as at night, has been described.
- the above setting operation can be performed even in a normal time zone in which the elevator can be used.
- the above setting operation may be stopped, and then the ramp threshold setting operation may be restarted when the elevator enters a resting state.
- some functions of the setting operation control unit 13 may be provided in the control panel 3.
- the elevator apparatus according to the present invention can be applied to an elevator device having a function of detecting the rampage of passengers in the elevator.
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
特許文献1及び2に記載のものでは、かご内に設置されたカメラからの画像を解析することにより、乗客の動きの向きや大きさのばらつき量を算出し、算出したばらつき量が所定の閾値を超えた場合に、乗客の暴れ動作を検知している。
また、特許文献2に記載のものでは、戸開閉状態やかご壁の種類毎に、ばらつき量の平均値と分散値とがデータベース化されており、暴れ検知装置に、上記データベースに基づいて閾値の補正を行う手段が備えられている。
図1はこの発明の実施の形態1におけるエレベーター装置を示す構成図、図2は図1の暴れ検知装置の具体的構成を示す図である。本エレベーター装置には、エレベーターの乗客の暴れ動作を検知する機能が備えられている。
図1において、1はエレベーター昇降路内を昇降するかご、2はかご1内の乗客の暴れ動作を検知するための暴れ検知装置、3はかご1の走行制御等、エレベーター全体の運行制御を司る制御盤である。
表示器4は、かご1内の乗客に所定の情報を報知するために備えられたものである。表示器4は、例えば、液晶ディスプレイ等によって構成され、制御盤3からの制御信号によってその表示が制御される。
画像記録部6は、カメラ5によって撮影された画像を記録するためのものである。即ち、カメラ5によって撮影された画像は、通信線等を介して暴れ検知装置2に送信され、画像記録部6に順次記録されていく。
なお、暴れ判定部10の判定結果は、出力部11から制御盤3に対して出力される。また、上記判定において用いられる暴れ閾値は、記憶部12に予め記憶されている。
なお、この時の輝度値差分検出部7、輝度差判定部8、計数部9の各機能自体は、上述の暴れ判定時と同じである。
また、上記構成のエレベーター装置において、設定動作制御部13の一部機能は、制御盤3に備えられていても構わない。
1a かご壁
2 暴れ検知装置
3 制御盤
4 表示器
4a 反射画像
5 カメラ
6 画像記録部
7 輝度値差分検出部
8 輝度差判定部
9 計数部
10 暴れ判定部
11 出力部
12 記憶部
13 設定動作制御部
14 設定部
15 かご壁判定部
16 閾値設定部
17a、17b 乗客の像
Claims (3)
- エレベーターのかご内を撮影するカメラと、
前記カメラによって撮影された画像を記録する画像記録部と、
前記画像記録部に記録されている一つの画像と所定の比較対照画像との輝度値の差分を、所定の検出単位毎に検出する輝度値差分検出部と、
前記輝度値差分検出部によって検出された輝度差が所定の輝度差閾値を超えているか否かを判定する輝度差判定部と、
輝度差が輝度差閾値を超えていると前記輝度差判定部によって判定された検出単位の数をカウントする計数部と、
前記計数部にカウントされた検出単位の数が所定の暴れ閾値を超えている場合に、乗客の暴れ動作有りを判定する暴れ判定部と、
を備えたエレベーター装置であって、
前記かごに設けられた表示器と、
前記かご内に動体が存在しない所定のかご内状態で前記表示器に所定のテスト画像を表示させて、前記カメラに前記かご内を撮影させるとともに、その時の画像と前記所定のかご内状態の時に前記カメラによって撮影された画像との輝度値の差分を前記輝度値差分検出部に検出させ、前記計数部に、輝度差が輝度差閾値を超える検出単位の数をカウントさせる調整動作制御部と、
前記調整動作制御部の前記制御によって前記計数部がカウントした検出単位の数に基づいて、前記暴れ判定部が暴れ動作の有無を判定するための暴れ閾値を設定する設定部と、
を備えたことを特徴とするエレベーター装置。 - 前記設定部は、
前記計数部がカウントした検出単位の数に基づいて、前記かごに用いられているかご壁の材質を判定するかご壁判定部と、
前記かご壁判定部によって判定された前記かご壁の材質に基づいて、暴れ閾値を設定する閾値設定部と、
を備えたことを特徴とする請求項1に記載のエレベーター装置。 - 前記かご壁判定部は、前記計数部がカウントした検出単位の数に基づいて、前記かご壁の材質に加え、前記かご壁の色の濃淡も判定し、
前記閾値設定部は、前記かご壁判定部によって判定された前記かご壁の材質と色の濃淡とに基づいて、暴れ閾値を設定する
ことを特徴とする請求項2に記載のエレベーター装置。
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CN201080064502.0A CN102762479B (zh) | 2010-02-23 | 2010-02-23 | 电梯装置 |
PCT/JP2010/052763 WO2011104818A1 (ja) | 2010-02-23 | 2010-02-23 | エレベーター装置 |
JP2012501557A JP5360290B2 (ja) | 2010-02-23 | 2010-02-23 | エレベーター装置 |
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EP3564170A1 (en) * | 2018-05-01 | 2019-11-06 | Otis Elevator Company | Elevator car control to address abnormal passenger behavior |
US11034548B2 (en) | 2018-05-01 | 2021-06-15 | Otis Elevator Company | Elevator door interlock assembly |
US11040858B2 (en) | 2018-05-01 | 2021-06-22 | Otis Elevator Company | Elevator door interlock assembly |
US11046557B2 (en) | 2018-05-01 | 2021-06-29 | Otis Elevator Company | Elevator door interlock assembly |
US11155444B2 (en) | 2018-05-01 | 2021-10-26 | Otis Elevator Company | Elevator door interlock assembly |
US11760604B1 (en) | 2022-05-27 | 2023-09-19 | Otis Elevator Company | Versatile elevator door interlock assembly |
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CN105060050A (zh) * | 2015-07-23 | 2015-11-18 | 孟凯涛 | 电梯运行开门险情检测系统 |
CN105129555A (zh) * | 2015-08-04 | 2015-12-09 | 董岩 | 一种识别电梯疑似暴力事件的方法 |
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US11655122B2 (en) | 2018-05-01 | 2023-05-23 | Otis Elevator Company | Elevator door in interlock assembly |
US11760604B1 (en) | 2022-05-27 | 2023-09-19 | Otis Elevator Company | Versatile elevator door interlock assembly |
Also Published As
Publication number | Publication date |
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JP5360290B2 (ja) | 2013-12-04 |
CN102762479B (zh) | 2014-10-29 |
JPWO2011104818A1 (ja) | 2013-06-17 |
CN102762479A (zh) | 2012-10-31 |
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