JP2013119461A5

JP2013119461A5 -

Info

Publication number: JP2013119461A5
Application number: JP2011267839A
Authority: JP
Filing date: 2011-12-07
Publication date: 2014-04-17
Anticipated expiration: 2031-12-07

Description

この発明のエレベータのかご内監視システムは、昇降路を昇降自在に設けられるかご、かご呼び及び乗場呼びに応じてかごの昇降を制御するエレベータ制御部を有するエレベータのかご内のフレーム画像を取得し、フレーム画像の領域を、画像処理の対象から外す所定のマスク領域と、残りの画像処理対象領域とにわけ、画像処理対象領域の変化に基づいて、かご内の情報を取得するエレベータのかご内監視装置であって、かご内を撮影した画像を処理する画像処理部と、画像処理部による画像処理の結果を記憶するデータ記憶部と、かご呼び及び乗場呼びの登録が解除されており、かつかご内の乗客がいない状況を判定して、臨時かご呼びを登録するエレベータ制御監視部とを備え、画像処理部は、臨時かご呼びが登録されるとマスク領域設定制御を行うように構成され、画像処理部は、マスク領域設定制御として、臨時かご呼びに応じたかごの移動中に、かご内のフレーム画像を順次取得し、所定の時期に取得したフレーム画像を基準フレーム画像として設定し、基準フレーム画像の設定後、所定間隔でフレーム画像を取得するごとに、基準フレーム画像を取得してからこれまでに取得されたフレーム画像を重ね合わせたときの画像において、基準フレーム画像と異なる領域である合成変動領域を、これまでに取得したフレーム画像に基づいて抽出し、前回抽出した合成変動領域に対する今回抽出した合成変動領域の増加量を演算してデータ記憶部に記憶し、演算した合成変動領域の増加量が、所定回連続して所定の閾値以下であるときに、最後に抽出した合成変動領域をマスク領域として設定する制御を行う。 The elevator car monitoring system according to the present invention acquires a frame image in an elevator car having an elevator control unit that controls the raising and lowering of the car according to a car, a car call and a hall call provided with a hoistway that can be raised and lowered. The frame image area is divided into a predetermined mask area to be excluded from the image processing target and the remaining image processing target area. Based on the change in the image processing target area, the information in the car is acquired. An image processing unit that processes an image captured in the car, a data storage unit that stores a result of the image processing by the image processing unit, a car call and a landing call registration, and An elevator control monitoring unit for determining a situation where there is no passenger in the car and registering a temporary car call, and the image processing unit is configured to mask the area when the temporary car call is registered. Is configured to perform a constant control, the image processing unit, a mask area setting control, during movement of the car in accordance with the temporary car call, the frame images sequentially acquires the frame image in the car, was acquired at a predetermined time Is set as a reference frame image, and after setting the reference frame image, every time a frame image is acquired at a predetermined interval, the reference frame image is acquired and then the frame images acquired so far are superimposed. A data storage unit that extracts a composite variable region that is different from the reference frame image based on the frame image acquired so far, calculates an increase amount of the composite variable region extracted this time with respect to the previously extracted composite variable region When the increase amount of the composite variation area stored and calculated is equal to or less than a predetermined threshold continuously for a predetermined number of times, the last extracted composite variation area is masked. And performs control to set the region.

Claims

Acquire a frame image in the elevator car having an elevator control unit that controls the raising and lowering of the car according to a car, a car call and a hall call provided with a hoistway so that the hoistway is freely movable. An elevator in-car monitoring device that obtains information in the car based on a change in the image processing target area, divided into a predetermined mask area to be removed from the processing target and a remaining image processing target area,
An image processing unit for processing an image taken in the car;
A data storage unit for storing the result of image processing by the image processing unit;
An elevator control monitoring unit for determining a situation in which registration of the car call and the landing call has been canceled and no passengers are in the car, and registering a temporary car call;
The image processing unit is configured to perform mask area setting control when the temporary car call is registered,
The image processing unit, as the mask area setting control,
While the car is moving in response to the temporary car call, the frame images in the car are sequentially acquired, the frame images acquired at a predetermined time are set as reference frame images, and the reference frame images are set. Each time the frame image is acquired at a predetermined interval, a composite image that is a region different from the reference frame image in the image obtained by superimposing the frame images acquired so far after acquiring the reference frame image. Extract the fluctuation area based on the frame image acquired so far, calculate the increase amount of the synthetic fluctuation area extracted this time relative to the previously extracted synthetic fluctuation area and store it in the data storage unit,
An elevator car monitoring device that performs control to set the last extracted combined fluctuation region as the mask region when the calculated increase amount is equal to or less than a predetermined threshold value continuously for a predetermined number of times.

The image processing unit is calculated by the time the car reaches the destination floor corresponding to the temporary car call after the calculated increase amount is continuously equal to or less than the predetermined threshold value for a predetermined number of times. 2. The apparatus according to claim 1, wherein when the increase amount is larger than a predetermined abnormality determination threshold value that is larger than the predetermined threshold value continuously for a predetermined number of times, it is determined that the position of the photographing means for photographing the inside of the car has shifted. The elevator car monitoring device described in 1.

When the image processing unit determines that the position of the photographing unit has shifted,
The composite variation area is reset, and the frame image acquired at a predetermined time is set as a new reference frame image among the frame images acquired after determining the positional deviation of the photographing unit, and the new After setting the reference frame image, each time the frame image is acquired at a predetermined interval, the new reference frame image is acquired and then the new frame image acquired so far is superimposed on the new frame image. The composition variation area that is different from the reference frame image is extracted based on the frame image acquired so far after acquiring the new reference frame image, and the composition composition extracted this time with respect to the previously extracted composition variation area Calculate the amount of increase in the variable region and store it in the data storage unit,
Computed above increased amount, when continuously a predetermined number of times is below a predetermined threshold value, the last synthesis fluctuation region extracted elevator according to 請 Motomeko 2 you and sets as the mask area In-car monitoring device.

The elevator control monitoring unit determines whether the registration of the car call and the landing call has been canceled and there are no passengers in the car, and periodically registers the temporary car call.
The elevator car monitoring apparatus according to any one of claims 1 to 3, wherein the image processing unit performs the mask area setting control each time the temporary car call is registered. .