JP2000211874A - Control device of man conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control simply and quickly a man conveyor even in such an emergency case as requiring an emergency control, for example tumbling. SOLUTION: An image control device 3 receives a characteristic amount using an image reception part 31, and an event judging part 32 judges whether an emergency condition is generated on the basis of the obtained characteristics amount, and a control decision part 33 decides the control method to be adopted on the basis of the result from judgement. A control signal is fed to a man conveyor control device 21 to conduct stop, deceleration, etc., of the man conveyor 2 and guidance by a guide device 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a man conveyor, and more particularly to a monitoring device for detecting an image and performing guidance, display, and control.

[0002]

2. Description of the Related Art Conventionally, this kind of technology is disclosed in
In Japanese Patent Application Publication No. 19762, there is an apparatus in which images on a man conveyor are arranged in chronological order, and a phenomenon such as a fall is detected by detecting the disturbance. Japanese Utility Model Laid-Open Publication No. 60-130274 discloses that in a passenger conveyor where the entirety cannot be seen at the entrance / exit, an invisible portion of the transport path is photographed with a camera, and the start / stop is performed at a position where a monitor displaying the photographed image can be seen. There is an operation switch that is installed so that the start / stop operation can be performed while confirming the entirety of a passenger conveyor that cannot be completely viewed.

[0003]

In the above-mentioned prior art, when the use situation is used regularly, it is detected that the disturbance has occurred, and an abnormal state such as a fall is detected. This is particularly effective in detecting when many users are using the system. However, if the number of passengers is small, it is necessary to respond as quickly as possible, and for malfunctions such as falling near the entrance, malfunctions will occur before collecting time-series data. Become. On the other hand, in the above-described conventional example, images of the man conveyor are collected in time series, and the determination is performed based on the result. Therefore, a certain time is required until the determination is performed.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problem and to provide a control device suitable for monitoring a man conveyor for immediately detecting a problem such as a fall when using a small number of people or a problem near the entrance. is there.

[0005]

An image processing image sensor captures an entrance of a man conveyor or the like, and the image processing image sensor is composed of elements arranged on a plane. I do.

The event judging means judges an event that has occurred at the entrance of the man conveyor or the like based on the result of the image processing performed by the artificial retinal element.

The control determining means determines the control to be performed by the man conveyor based on the result determined by the event determining means, and sends a control signal to the man conveyor control means to perform the control.

[0008] The man conveyor control means controls the guidance of the man conveyor based on the control signal sent from the control determining means.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of the present invention.

The camera 1 has an image processing image pickup device 11,
The video of the man conveyor 2 is photographed. The image processing image pickup device captures the image of the conveyer by each individual image processing image pickup device 111 and extracts the feature of the photographed image by calculation between the individual image processing image pickup devices 111. The characteristics of the image and video captured by the image processing image sensor 11 are sent to the image control device 3. In the image control device 3, the transmitted image is received by the image receiving unit 31, and the feature amount is transmitted to the event determining unit 32. The event determination unit 32 determines whether an abnormal situation such as getting out of the handrail or falling down has occurred based on the feature amount, and sends the determination result to the control determination unit 33. The control determination unit 33 determines a control method based on the result determined by the event determination unit 32, and outputs a control signal according to the control method to the man-conveyor control device 21.
Send to Based on the control signal, the man conveyor control device 21 performs stop and deceleration of the man conveyor 2 and guidance by the guide device 22.

FIG. 2 is a flowchart showing the operation of the present invention. First, the image processing image sensor 11 photographs the man conveyor 2 (2-1). Next, the image processing image sensor 11
Extracts the characteristics of the captured video by calculation between the individual image processing image sensors 111 (2-2). Next, the feature amount is sent to the image control device 3 (2-3). The image control device 3 receives the transmitted image by the image receiving unit 31 (2-4), and transmits the feature amount to the event determination unit 32 (2-
5). Next, the event determining unit 32 determines whether an abnormal situation such as getting out of the handrail or falling down has occurred based on the feature amount (2-6), and sends the determination result to the control determining unit 33 (2-6). 2-7). The control determination unit 33 determines a control method based on the result determined by the event determination unit 32 (2-8), and sends a control signal according to the control method to the man-conveyor control device 21 (2-9). . The man conveyor control device 21 performs stop and deceleration of the man conveyor 2 and guidance by the guide device 22 based on the control signal (2-1).
0).

According to this embodiment, image processing that takes a long time to be performed is performed simultaneously with image capturing only by the image processing image sensor 11, so that it can be performed simply and quickly. Further, here, the image control device 3 and the man-conveyor control device 21 are described as separate devices, but if both devices are realized by software using a microcomputer or the like, the camera 1 having the artificial retinal element 11 can be used. Man conveyor control device 2
The present invention can be realized only by connecting to 1.

FIG. 3 is an explanatory diagram of the operation of the image processing image pickup device 11 of the present invention. FIG. 3A is an example of an image processing image sensor. For example, transistor technology 19 published by CQ Publishing Company
The operation of an image sensor corresponding to the image processing image sensor 11 as an artificial retinal chip is described in February 1998, pp 384, pp 385. The image processing image sensor 11 includes an individual image processing image sensor 111, an image sensor control circuit 112, and an image sensor output circuit 113 arranged in a plane. By giving a necessary sensitivity control voltage, the image sensor output circuit 113 can extract an edge, perform a Fourier transform, recognize a moving object,
It becomes possible to output the result of tracking.

FIGS. 3 (b) and 3 (c) show examples of detecting a start from a handrail by contour extraction. FIG.
It is assumed that the user x is running off the handrail as shown in FIG. FIG. 3C shows the image processing image sensor 1
1 is the result of image processing, and L1 and L2 represent handrails. In this example, it is determined that the user x has started from the handrail by detecting that the contour of the user x has been extracted so as to cross the handrail L1. FIG.
(D) and (e) are examples in the case of fall detection. FIG. 3 (c)
The user y1 is detected as follows. Perform this process sequentially,
Using the sequentially processed images, the movement of the user per time interval required for the image processing is detected as shown in FIG. In the figure, y2 is a processed image at the time of processing next to y, and A2
Is a vector representing the moving direction. This vector A
It is possible to determine an abnormal situation such as a fall on the man conveyor 2 or a jump of a user by detecting that the size of is larger than a predetermined value.

FIG. 4 shows an embodiment in which the control method is changed in consideration of the operation status of the man conveyor 2.

The control determining unit 33 receives an operation status signal such as the load status of the man conveyor 2 from the man conveyor control device 21, and the event judging unit 32 determines a control method in accordance with the judgment result, and controls the control method. A control signal according to the method is sent to the man-conveyor control device 21. The following is the same as FIG.

FIG. 5 is a flowchart showing the operation when the control method is changed in consideration of the situation of the man conveyor 2. The event determining unit 32 determines whether or not an abnormal situation has occurred, and sends the determination result to the control determining unit 33 (2-
7) After that, an operation status signal such as a load status of the conveyor 2 is received from the conveyor control device 21 (5-1),
The control determination unit 33 determines a control method based on the operation status as well as the result determined by the event determination unit 32 (5).
-2). Subsequent steps (2-9) and subsequent steps are the same as those in FIG.

According to this embodiment, the control method is determined in accordance with the operation status of the man conveyor 2, so that the control method is determined in consideration of not only the detected event but also the load status of the motor of the man conveyor 2. This makes it possible to adjust the acceleration and the like when stopping during congestion and during off-peak periods, and to adjust the guidance content of the guidance device 22, thereby realizing finer control.

FIG. 6 shows an embodiment in which a judgment is made by separately processing the photographed image.

In the image processing device 3, after the transmitted image is received by the image receiving unit 31, the feature amount is determined by the event determining unit 3.
2 as well as the video to the image processing unit 34. In the image processing unit 34, image accumulation and image processing are separately performed, and a phenomenon or a feature amount with a lapse of time such as a person near the entrance or near the inlet for a predetermined time is extracted.
The event is sent to the event determination unit 32. The event determination unit 32 determines whether an abnormal situation has occurred based on not only the feature amount extracted by the retinal prosthesis element 11 but also a phenomenon or a feature amount over time extracted by the image processing unit 34. Subsequent steps are the same as in FIG.

According to the present embodiment, an abnormal situation that can be determined after a lapse of a predetermined time, such as stagnation near the entrance or mischief of a child at the inlet, can be detected, and the determination can be finely performed. Can be guided and controlled, and more detailed and wide-ranging events can be handled.

[0022]

According to the present invention, since image processing can be performed only by the image pickup device, it can be easily realized, and image processing such as contour extraction and the like can be performed simultaneously with photographing at the time of photographing. The man conveyor can be controlled quickly, and even when urgent control such as overturning is required, quick response is possible.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a man conveyor of the present invention.

FIG. 2 is a flowchart showing the operation of the man conveyor of the present invention.

FIGS. 3A to 3C are diagrams illustrating a man conveyor according to the present invention.

FIG. 4 is a diagram illustrating a case where a control method is changed in consideration of a situation of a man conveyor.

FIG. 5 is a flowchart showing an operation in a case where a control method is changed in consideration of a situation of a man conveyor.

FIG. 6 is a diagram illustrating a case where a captured image is separately subjected to image processing to make a determination.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Camera, 2 ... Man conveyor, 3 ... Image processing apparatus, 1
DESCRIPTION OF SYMBOLS 1 ... Image processing image sensor, 21 ... Man conveyor control device,
22 guide device, 31 image receiving unit, 32 event determining unit, 33 control determining unit, 34 image processing unit, 111 individual image processing image sensor, 112 image sensor control circuit, 11
3. Image sensor output circuit.

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Toshimitsu Tobita 1070 Ma, Hitachinaka-shi, Ibaraki Pref. Inside Mito Plant, Hitachi, Ltd. Inside Mito Plant (72) Inventor Hisao Chiba 1070 Ma, Hitachinaka-shi, Ibaraki Pref. Inside Mito Plant, Hitachi, Ltd. (72) Inventor Riki Komatsu 832 Horiguchi, Hitachinaka-shi, Ibaraki Pref. F-term (reference) in Alling Co., Ltd. 3F321 AA04 AA11 EA01 EB00 GA00 GA10 GA28 GA31 GA35

Claims (5)

[Claims] An image pickup device having an image processing function, and a guide control for determining control of the man conveyor based on an image processing result of the image pickup device. A control device for a man-conveyor, comprising: a determination unit; and a guidance control execution unit that executes guidance / control determined by the guidance control determination unit. 2. The control device for a man conveyor according to claim 1, wherein said image pickup device is composed of elements arranged on a plane, and performs image processing by calculation between adjacent elements. 3. The system according to claim 1, further comprising means for collecting the operation status of the man conveyor, wherein the guide control determination means collects the operation status in addition to the image processing result of the image sensor when determining the guidance / control to be executed. 3. The control device for a man conveyor according to claim 1, wherein the guidance / control to be executed is determined also using the operation status of the man conveyor collected by the means for performing the operation. 4. An image recognizing means for recognizing an image based on a video received from the image capturing means, the image recognizing means comprising:
A time-series data storage function is provided, and a phenomenon requiring time-series data storage is recognized and determined by the image recognizing means. The guidance control determining means includes a recognition determination result of the image recognizing means in addition to an image processing result of the image sensor. 3. The control device for a man conveyor according to claim 1, wherein the guidance / control to be executed is determined by using the control information. 5. The abnormal event in the preceding period includes getting out of the handrail, involuntarily in the vicinity of the entrance and the handrail, stagnation in the vicinity of the entrance, riding in the opposite direction, and falling. Item 4. The control device for a man conveyor according to item 1 or 3.