JPH0524751A - Monitoring device for elevator - Google Patents

Abstract

PURPOSE:To provide a monitoring device for an elevator wherein image pick up data in a riding cage with a monitoring camera can be displayed in a monitor device of a monitor center first as a rough picture in a short time and as a clearer picture as necessary. CONSTITUTION:The first picture processing device 4f for processing a display picture of a monitor device 6d divided into predetermined blocks and the second picture processing device 4g for processing the picture divided into further finer blocks are provided in a monitor processing device 4 to provide a select switch 6e for selecting the picture processing in a monitoring center. Thus by accurately catching a condition in a riding cage of an elevator causing an abnormal condition, a quick and proper countermeasure can be taken.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator monitoring device for monitoring an elevator at a monitoring center by photographing the inside of an elevator car with a monitoring camera.

[0002]

2. Description of the Related Art Once an elevator has closed its doors and started operating, it will be in a closed room until the next stop floor, so if an abnormal situation occurs, it will be accurately detected to ensure the safety of passengers. It is necessary to. For this,
In the elevator car, there is provided a communication device for allowing a customer to communicate with a monitoring center that monitors the elevator when an abnormal situation occurs. However, when an abnormal situation occurs, the customer is in a panic state to some extent, and it is often the case that the state of the inside of the car cannot be accurately transmitted to the monitoring center even if the communication device is used. ..

In order to cope with such a situation, a camera is installed in the elevator car, and when an abnormality occurs or the push button for emergency contact is operated, the monitoring center monitors the inside of the car through the image taken by the camera. Elevator monitoring devices are in practical use.

[0004]

In this conventional elevator monitoring device, the amount of image data obtained by photographing with the camera provided in the car is large, and the transmission of the image data cannot be completed in a short time. Response to abnormal situations may be delayed. In particular, if abnormal situations occur simultaneously or consecutively in elevators installed in a plurality of buildings, the response will be further delayed. If the response to the occurrence of the abnormal situation is delayed in this way, the passenger in the car may panic and a serious accident may occur due to the delay.

In some cases, the image displayed on the monitor of the surveillance center is not clear, and it may be necessary to overlook the presence of passengers in the car or arrange an ambulance among the users trapped in the car. Sometimes it was not possible to clearly understand the existence of an old man or the fact that a woman was being violent in the car and needed to contact the police.

The present invention has been made in view of the current state of the elevator monitoring apparatus as described above, and the purpose thereof is to first transmit the image data of the surveillance camera in the car in a short transmission time to obtain a surveillance center. It can be displayed on a monitor of the elevator, and if necessary, it can be displayed as a high-resolution clear image with a relatively long transmission time. To provide a monitoring device.

[0007]

The above object is to monitor a plurality of elevators by monitoring cameras installed in the cars of a plurality of elevators and images taken by the monitoring cameras in the cars in which an abnormality has occurred. In an elevator monitoring device comprising an image transmitting means for transmitting to a monitoring center and a monitor device provided in the monitoring center for displaying an image transmitted by the image transmitting means, an emergency contact button is provided on the elevator side. Operation of the monitor device or an abnormality occurs, and the first image processing means divides the image of the monitor device into a predetermined number of blocks, and the monitor center selects finer divisions than the first image processing means. Second image processing means for performing processing is provided, and the monitoring center is provided with selection means for selecting the second image processing means. It is achieved by taking.

[0008]

With this structure, when an abnormal situation such as itself occurs or an emergency situation occurs in the car and the emergency contact button is operated, it is processed by the first image processing means. The image data having a high communication speed is first displayed on the monitor device of the monitoring center, and the monitoring center can quickly grasp the general situation in the car. Then, when the second image processing means is selected in the monitoring center, a clear image of the car in which the communication speed is slow but a clear image of the car is displayed on the monitor device of the monitoring center, and the situation in the car is accurately grasped in detail. To be done.

Therefore, the surveillance staff at the surveillance center can accurately determine the state of the abnormal situation by continuously monitoring both images as needed, and take prompt and appropriate countermeasures against the abnormal situation. , Rescue passengers and restore elevators.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Here, FIG. 1 is a block diagram showing a configuration of the embodiment, FIG. 2 is an explanatory view of an image subjected to image processing by the first image processing means of the embodiment, and FIG. 3 is a second image processing means of the embodiment. It is explanatory drawing of the image which carried out image processing.

In FIG. 1, 1 is a car, 3 is an elevator control device, and 4 is a supervisory control device. The car 1, the control device 3 and the supervisory control device 4 are installed in a building (not shown) for supervisory control. The device 4 is connected to the monitoring center 6 via a communication circuit 5. A surveillance camera 2 is attached to the inside of the car 1, and the surveillance control device 4 includes an image input device 4
a, image storage device 4b, abnormality detection device 4c, control device 4
d, the activation device 4e, the first image processing unit 4f corresponding to the first image processing unit of the present invention, the second image processing unit 4g corresponding to the second image processing unit of the present invention, and the image of the present invention. The surveillance camera 2 is provided with a transmission device 4h corresponding to the transmission means, and is connected to the image input device 4a. An image storage device 4b is connected to the image input device 4a, and a plurality of color scale numbers representing the densities of colors corresponding to all the pixels of the image data taken by the surveillance camera 2 are set in a preset time cycle. The image is stored in the image storage device 4b. Further, the contact 3a of the emergency contact button included in the control device 3 and the contact 3b that is closed or opened when an abnormality occurs in the elevator.
3n is connected to the abnormality detecting device 4c, and this abnormality detecting device 4c is connected to the control device 4d. Further, the abnormality detection device 4c is connected to an activation device 4e which activates the image input device 4a and activates the surveillance camera 2 via the image input device 4a.

The control device 4d is connected to the first image processing device 4f, the second image processing device 4g and the communication device 4h, and the first image processing device 4f and the second image processing device 4g are connected to each other. , Is connected to the communication device 4h. Then, the control device 4d selects the first image processing device 4f by the signal from the abnormality detection device 4c, and operates the selection switch 6e of the monitoring center 6 described later to input from the communication circuit 5 through the communication device 4h. The second image processing device 4g is selected by the converted image signal. The first image processing device 4f and the second image processing device 4g are the image storage device 4
It is connected to b.

By the way, the first image processing device 4f divides the pixel data stored in the image storage device 4b into 35 blocks F1 to F35 as shown in FIG. The average value of the color scale numbers of the pixels corresponding to each block stored in
It has a function of performing processing with 35 color scale numbers and outputting as image data to the communication device 4h. Similarly, the second
The image processing apparatus 4g of the image processing apparatus 4g converts the pixel data stored in the image storage apparatus 4b into images G1 to G140 as shown in FIG.
Image data is divided into 140 blocks, and the average value of the color number of the pixels corresponding to each block stored in the image storage device 4b is obtained, and the average value of the color numbers of the blocks G1 to G140 is obtained. Has a function of outputting to the communication device 4h.

On the other hand, the monitoring center 6 comprises a communication device 6a, a control device 6b, an image reproducing device 6c, a motor device 6d, and a selection switch 6e corresponding to the selecting means of the present invention. Is connected to the communication device 4h of the monitor control device 4. In the monitoring center 6, the communication device 6a is connected to the control device 6b, and the control device 6b
Is connected to the image reproducing device 6c and the selection switch 6e, and the image reproducing device 6c is connected to the monitor device 6d. The image reproduction device 6c has a function of displaying the image data transmitted from the monitor control device 4 on the monitor device 6d. Further, the selection switch 6e is the monitor device 6
When the image in the car displayed in d is operated when it is desired to display it more clearly, an image conversion signal is transmitted to the monitor control device 4, and a clear image in which the number of image division blocks is increased to 140 is displayed on the monitor. It has a function of displaying on the device 6d.

Next, the operation of the embodiment having such a configuration will be described.

For example, when a failure occurs in the elevator and the contact 3b is closed, an abnormality signal is input to the abnormality detection device 4c. Therefore, the detection signal is input from the abnormality detection signal 4c to the starting device 4e and the control device 4d. It The surveillance camera 2 is driven via the image input device 4a by this detection signal, the situation inside the car 1 is photographed by the surveillance camera 2, and the image data obtained by the photographing is stored in the image storage device via the image input device 4a. It is stored in the device 4b. Also, the control device 4d
Selects the first image processing device 4f according to the detection signal, and all the color scale numbers corresponding to the pixels of each block F1 to F35 shown in FIG. 2 stored as image data are read out, and each block is read. Is calculated, and the obtained average color scale number is output to the communication device 4h as image transmission data.

Therefore, the communication device 4h calls the communication device 6a of the monitoring center 6 and sends the image transmission data to the communication device 6a via the communication circuit 5. This image transmission data is input to the image reproducing device 6c via the control device 6b, and the image in the car 1 taken by the monitoring camera 2 by the image reproducing device 6c is the 35 blocks shown in FIG. And is displayed on the monitor device 6d based on the color scale number stored in advance in the image reproducing device 6c. further,
When the predetermined cycle time has elapsed, the image input device 4a
The new image data is stored in the image storage device 4b, and the images in the car 1 are successively displayed on the monitor device 6d by the same operation.

Here, the monitoring staff of the monitoring center 6 monitors the image displayed on the monitor device 6d to check whether the passengers are trapped in the car 1 and the passengers are trapped. If it is necessary to confirm the sex or age of the customer or the operation thereof, the selection switch 6e is operated. By this operation, the image conversion signal is transmitted from the control device 6d to the communication device 4h via the communication device 6a and the communication circuit 5, and the control device 4d receives the image conversion signal input from the communication device 4h to the control device 4d. The second image processing device 4g is selected.

By this selection, all the color scale numbers corresponding to the pixels of the blocks G1 to G140 shown in FIG. 3 stored as image data from the image storage device 4b are read out, and the average color scale number of each block is read. Is calculated and the obtained average color floor number is used as image transmission data by the communication device 4h.
Is output to. This image transmission data is transmitted to the monitoring center 6 via the communication line 5 by the communication device 4h, and an image composed of 140 blocks G1 to G140 is displayed on the monitor device 6d. This image is clear, and the observer can accurately understand the sex, age, or behavior of the passengers who are trapped in the car 1. For example, an ambulance dispatch request or police It is possible to promptly take appropriate measures such as notification of.

[0020]

According to the present invention, when an abnormal situation occurs in the elevator, first, the image data of the high communication speed processed by the first image processing means is displayed on the monitor device of the monitoring center, and if necessary, it is displayed. When the selecting means is operated at the monitoring center, clear image data is transmitted at the low communication speed processed by the second image processing means, so that the abnormal situation occurring at the monitoring center can be accurately and promptly determined. It is possible to grasp, in case of abnormal situation of elevator,
Appropriate action can be taken.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an image subjected to image processing by the first image processing means according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram of an image that has been image-processed by a second image processing unit according to an embodiment of the present invention.

[Explanation of symbols]

 1 Car 2 Monitoring camera 4 Monitoring control device 4a Image input device 4c Abnormality detection device 4d Control device 4f First image processing device 4g Second image processing device 6b Control device 6c Image playback device 6d Monitoring device 6e Selection switch

Claims (1)

Claim: What is claimed is: 1. A surveillance center for monitoring a plurality of elevators, the surveillance cameras being installed in the cars of a plurality of elevators, and the images taken by the surveillance cameras in the cars in which an abnormality has occurred. In an elevator monitoring device comprising an image transmitting means for transmitting to an elevator and a monitor device provided in the monitoring center for displaying the image transmitted by the image transmitting means, an emergency contact button is operated on the elevator side. Alternatively, a first image processing unit that is selected when an abnormality occurs and divides the image of the monitor device into a predetermined number of blocks, and a finer division process than the first image processing unit that is selected by the monitoring center. A second image processing means for performing the operation, and the monitoring center is provided with a selecting means for selecting the second image processing means. Elevator monitoring device for the butterflies.