WO2022138479A1

WO2022138479A1 - Monitoring system and monitoring method

Info

Publication number: WO2022138479A1
Application number: PCT/JP2021/046696
Authority: WO
Inventors: 寛典直井; 敦佐々; 朋樹松川
Original assignee: 株式会社日立国際電気
Priority date: 2020-12-22
Filing date: 2021-12-17
Publication date: 2022-06-30
Also published as: GB2617005A; JPWO2022138479A1; GB202309431D0

Abstract

Provided is a monitoring system that allows an operator to quickly notice the occurrence of danger, while suppressing an increase in operational burden on the operator of a running train. The monitoring system is provided with a camera 21 mounted to each car of a train, a display device 23 for displaying camera footage, and an analysis device 26 for performing a danger sensing process for sensing danger that has occurred near a car. The display device 23 does not display the camera footage during entry and/or departure of the train with respect to a station platform. However, if danger is sensed by the danger sensing process, the display device 23 displays camera footage of the car in which the danger has been sensed, even during entry and/or departure.

Description

Monitoring system and monitoring method

The present invention relates to a surveillance system using a camera attached to each vehicle of a train.

In the operation of railway vehicles, one-man operation by one driver is adopted for routes with few passengers and short train formations. In the trend of decreasing railroad workers themselves due to demographics due to the decrease in the working population, each railway operator has adopted a policy of increasing the number of routes and trains to which one-man operation is applied. However, if the number of trains is increased, the burden of safety confirmation work by one driver becomes heavy, and there is a concern that accidents due to oversight are likely to occur.

Conventionally, in order to support one-man operation, a system for checking passengers' boarding / alighting status using cameras and monitors installed on the platform of each station or mirrors has been used. In addition, there is also a car-side camera system in which a camera and a monitor are installed on the train side, which has become widespread in recent years because maintenance of infrastructure equipment is not required. For example, Patent Document 1 discloses a monitoring system that enables an image of a door in which an abnormality is detected in a closed door to be confirmed on an in-vehicle monitor.

Japanese Unexamined Patent Publication No. 2019-92136

FIG. 1 shows a configuration example of a monitoring system according to a conventional example. In FIG. 1, each vehicle 10-1 to 10-4 of a train has a camera 11 (A) facing in the direction of travel of the train and a camera 11 (B) facing in the opposite direction on both sides of the vehicle body. It also has a relay device 12 for constructing an in-train network. Further, in the cabs of the vehicles 10-1 and 10-4 at both ends of the train, two display devices 13 (A) and 13 (B) for displaying camera images of each vehicle, and from the vehicle side or a higher system A control device 14 that controls display ON / OFF of the display device 13 based on the obtained vehicle information 15 is mounted. Examples of the vehicle information 15 include a door opening signal and a speed detection signal. The door opening signal is a signal indicating that the door has been opened, and the side on which the door is opened (in this specification, the left side is expressed as the mountain side and the right side is expressed as the sea side with respect to the traveling direction of the train). Information is also included. The speed detection signal is a signal indicating that the speed of the train has reached a predetermined value (for example, 5 kph) or more.

While the train is running, the display of the camera image by the display device 13 is stopped, and after the train stops at the station, the door is opened at the timing when the door opening operation is performed and the door opening signal is turned on. The display of the camera image on the other side starts. After confirming the passengers getting on and off by the display device 13, the driver closes the door and starts running the train if there is no particular problem. After that, when the speed detection signal is turned on, the display of the camera image by the display device 13 is stopped. That is, since the camera image interferes with the operation, basically nothing is displayed on the display device 13 when the train is running.

When opening and closing the door on the station platform, the display device 13 displays the camera image 11 (B) facing the direction opposite to the train traveling direction among the two cameras 11 (A) and 11 (B) on the opened side. Display on. Since there are only two display devices 13 (A) and 13 (B) in the driver's cab, the display areas are divided and the camera images of all vehicles 10-1 to 10-4 are displayed at once. Since the train in FIG. 1 is a 4-car train, it may be divided into two for each display device, and for a 6-car train, it may be divided into three. Currently, one-man operation is only allowed for a maximum of 5 cars, so the maximum division is 3 divisions. Here, the reason why only the camera image facing the direction opposite to the train traveling direction is displayed is that the resolution and size of the display device 13 are limited. When the number of trains to be operated by one-man operation increases, it is conceivable to divide the display area more, but the display size of the camera image becomes smaller, so there is a concern that oversight will increase.

In the conventional method, the camera image is displayed on the display device 13 only during the period from the door opening signal ON to the speed detection signal ON. However, accidents during periods other than the above, such as accidents in which passengers come into contact with the vehicle when entering the platform before the door opens, and accidents in which passengers caught in the door are dragged as they are when the door is closed, may occur. Therefore, it is desirable to carry out safety confirmation even when the train is running. In one-man operation, the conductor actually confirms the safety on the platform when entering or leaving the platform. However, a one-man driver needs to perform multiple tasks such as checking the safety of the track and platform in front of the train, power running, and braking when the train is running, so he sees multiple camera images while the train is running. It is a heavy burden to check the safety.

The present invention has been made in view of the above-mentioned conventional circumstances, and the driver can promptly grasp when a danger occurs while suppressing an increase in the work load of the driver while the train is running. The purpose is to provide a monitoring system capable of.

In order to achieve the above object, the monitoring system according to the present invention is configured as follows.
That is, the monitoring system according to the present invention includes a camera attached to each vehicle of the train, a display device for displaying the image of the camera, and an analysis device for performing a danger detection process for detecting a danger generated in the vicinity of the vehicle. In preparation, the display device does not display the camera image when the train enters and / or leaves the platform of the station, but when the danger is detected by the danger detection process even when entering and / or leaving the line. Is characterized by displaying the image of the camera of the vehicle in which the danger is detected.

Here, the analysis device may perform the danger detection process based on the image of the camera of the vehicle located in the section of the platform at the time of entering and / or leaving the line.

Further, each vehicle of the train has a first camera facing the train traveling direction and a second camera facing the direction opposite to the train traveling direction, and the analysis device is a first camera at the time of entering the line. The danger detection process may be performed based on the image of the second camera, and the danger detection process may be performed based on the image of the second camera at the time of departure.

In addition, the display device displays the images of the first camera and the second camera of the vehicle in which the danger is detected when the danger is detected by the danger detection process at the time of entering and / or leaving the line. You may.

Further, the camera transmits the captured image to the display device and the analysis device, the analysis device performs the danger detection process based on the image received from the camera, and the display device performs the danger detection process based on the result of the danger detection process by the analysis device. The display of the image received from the camera may be controlled.

Further, an analysis device may be mounted on each vehicle of the train, and the analysis device may perform the danger detection process based on the image of the camera mounted on the same vehicle as itself.

In addition, cameras may be attached to both the left and right sides of the vehicle, and the analysis device may perform danger detection processing based on the image of the camera on the side where the door opens on the platform.

According to the present invention, it is possible to provide a monitoring system capable of promptly grasping when a danger occurs while suppressing an increase in the work load of the driver while the train is running.

It is a figure which shows the configuration example of the monitoring system which concerns on the conventional example. It is a figure which shows the structural example of the monitoring system which concerns on one Embodiment of this invention. It is a figure which shows the example which emphasizes the display of the camera image which detected the danger. It is a figure which shows the example which emphasizes the display of the camera image which detected the danger. It is a figure explaining operation at the time of entering a platform. It is a figure explaining operation at the time of entering a platform. It is a figure explaining the operation at the time of stopping at a station. It is a figure which shows the example which divides and displays a plurality of camera images. It is a figure which shows the example which divides and displays a plurality of camera images. It is a figure explaining operation at the time of platform departure. It is a figure explaining operation at the time of platform departure. It is a figure which shows the example of the processing sequence from an incoming line to an outgoing line of a platform.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 2 shows a configuration example of the monitoring system according to the embodiment of the present invention. In FIG. 2, each vehicle 20-1 to 20-4 of the train has a camera 21 (A) facing the train traveling direction and a camera 21 (B) facing the opposite direction on both sides of the vehicle body. It also has a relay device 22 for constructing an in-train network. In addition, the cabs on the vehicles 20-1 and 20-4 at both ends of the train have two display devices 23 (A) and 23 (B) that display camera images of each vehicle, and from the vehicle side or the host system. A control device 24 that controls display ON / OFF of the display device 23 based on the obtained vehicle information 25 is mounted. Examples of the vehicle information 25 include a door opening signal, a speed detection signal, and the like, as in the conventional example. This example is a 4-car train, but the number of trains is arbitrary. Further, in this example, only the display device 23 of the leading vehicle 20-1 is operated, but the display device 23 of the trailing vehicle 20-4 may be additionally operated.

Further, in the monitoring system of this example, an analysis device 26 for analyzing the camera image of the vehicle is mounted on each of the vehicles 20-1 to 20-4. When the own vehicle is located in the platform section, the analysis device 26 analyzes the camera image of the own vehicle to perform the danger detection process, and when the danger is detected, the analysis device 26 displays the danger detection signal on the display device 23. It is transmitted to the device 23. In the danger detection process, for example, deep learning technology is used to determine at which coordinates in the image an object such as a person or a foreign object exists, and whether the object is a dangerous object based on the positional relationship between the position of the object and the side surface of the vehicle. Judge whether or not. The side surface of the vehicle in the image may be set as prior information or may be recognized by deep learning.

Since the display device 23 normally displays the camera images of each vehicle 20-1 to 20-4 separately when the train is stopped at the station, the driver can confirm the safety of the passengers on the image. On the other hand, while the train is running (including when the train enters and leaves the platform of the station), the camera display is basically stopped so as not to interfere with the operation, but the display device 23 is from the analysis device 26. When a danger detection signal is received, the camera image is exceptionally displayed to notify the driver of the occurrence of danger. At this time, as shown in FIG. 3A, the area around the camera image in which the danger is detected is surrounded by the red frame 31, and as shown in FIG. 3B, the range in which the danger is detected is surrounded by the red frame 32. It is preferable to inform the driver of the occurrence of danger in an easy-to-understand manner by highlighting it in a sluggish manner.

Here, when the image re-encoded by the analysis device 26 is handled when displaying the camera image, the delay from the imaging to the image display becomes large. This is not preferable for danger detection that requires real-time performance. Therefore, each camera 21 directly transmits the display image to the display device 23. At the same time, the camera 21 transmits an image for analysis to the analysis device 26 of the own vehicle. The analysis device 26 performs danger detection processing based on the image for analysis, and displays a danger detection signal including the minimum necessary information such as identification information of the camera image in which the danger is detected and coordinate information in the image. Send to. The display device 23 controls the display of the camera image based on the danger detection signal from the analysis device 26. This makes it possible to promptly detect the occurrence of a danger and have the driver confirm the image in real time.

Below, the more detailed operation of this system will be explained separately for each scene when entering the platform, stopping at the station, and leaving the platform.

[When entering the platform]
When a train enters the platform of a station, the camera image is not displayed in principle so as not to interfere with the driver's braking operation. That is, the display of the camera image by the display device 23 is stopped at the stage before entering the platform. In addition, the danger detection process by the analysis device 26 of each vehicle is also stopped. Then, the analysis device 26 of each vehicle starts the danger detection process based on the camera image of the own vehicle in the order of the vehicles entering the platform (see FIG. 4). This is because if the danger detection process is started before entering the platform, there is a possibility that an object outside the platform may be erroneously detected.

For example, the method of detecting the entry to the platform by the ultrasonic wave described in "https://www.jreast.co.jp/development/tech/pdf_21/Tech-21-21-26.pdf" or the vehicle There is a method to calculate from about kilograms. In addition, a platform detection device for detecting the platform is provided only in the leading vehicle 20-1, and the subsequent entry into the platform of each vehicle 20-2 to 20-4 is the passage from the time when the leading vehicle enters the platform. The determination may be made based on time, travel distance, or the like. Further, other techniques such as GPS (Global Positioning System) may be used to detect the entry of each vehicle into the platform, and the method is not limited.

In the example of FIG. 4, since the leading vehicle 20-1 is on the platform, the analysis device 26 of the vehicle 20-1 starts the danger detection process based on the camera image of the vehicle 20-1. If the processing capacity of the analysis device 26 is not sufficient, the image of the camera 21 (A) that captures the direction of travel of the train is standard as the image of the camera to be processed. This is because the image of the camera 21 (A) facing the train traveling direction can detect the danger more quickly than the image of the camera 21 (B) facing the opposite direction.

In addition, the standard camera image to be processed is the camera image on the side that opens the door at the station. Whether the platform is on the mountain side or the sea side can be easily determined, for example, by registering the platform in advance in the database. Further, as another example, the determination may be made by the home detection device, or the platform is on the side where a predetermined object such as a sign, a step of the platform, or a Braille block can be detected by analysis of the camera image. It may be determined). Further, it does not matter whether the platform is located on the mountain side or the sea side by another method. In the example of FIG. 4, since the doors of both the mountain side platform and the sea side platform are opened, the danger detection process is performed on the camera images in the train traveling direction on both sides of the vehicle body.

When a danger such as a passenger approaching the vehicle is detected as a result of the danger detection process, the analysis device 26 transmits a danger detection signal to the display device 23. The display device 23 displays a camera image of the vehicle in which the danger is detected based on the danger detection signal received from the analysis device 26 (see FIG. 5). The camera image to be displayed is a camera image in which danger is detected and a camera image in the shooting direction facing the camera image. That is, the image of the camera 21 (A) facing the train traveling direction is displayed on the display device 23 (A), and the image of the camera 21 (B) facing in the opposite direction is displayed on the display device 23 (B). Is displayed in. This is because if the configuration is such that only the camera image in which the danger is detected is displayed, the driver cannot confirm any situation after the camera passes the danger occurrence position.

Here, dangerous objects such as persons and foreign substances judged to be dangerous can be roughly classified into moving objects that move (that is, dragged by the train) as the train travels and fixed objects that do not move. can. When the dangerous object is a fixed object, the analysis device 26 (vehicle) for detecting the danger is switched as the train travels, so that the camera image to be displayed by the display device 23 is also switched in order. On the other hand, when the dangerous object is a moving object, the danger is continuously detected by the same analysis device 26 (vehicle), so that the camera image to be displayed by the display device 23 is basically not switched. This also applies to the platform departure, which will be described later.

[When the train stops]
After the train stops at the station, the camera images of all vehicles 20-1 to 20-4 start to be displayed at the timing when the door opening operation is performed and the door opening signal is turned on (see FIG. 6). ). When the train is stopped at the station, the images of the cameras 21 (B) of all the vehicles on the side where the door is opened and facing the direction opposite to the train traveling direction are divided and displayed on the display device 23. The image of the camera 21 (B) in the direction opposite to the train traveling direction is displayed because it is less likely to get dirty than the camera 21 (A) in the train traveling direction and the visibility of the image is good.

While the train is stopped at the station, the danger detection process is performed on the image of the camera 21 (B) in the direction opposite to the direction of travel of the train, unlike when entering the platform. When a danger is detected as a result of the danger detection process, the analysis device 26 transmits a danger detection signal to the display device 23. The display device 23 emphasizes the display of the camera image in which the danger is detected based on the danger detection signal received from the analysis device 26. At this time, if the number of trains is small, the camera image in which the danger is detected may be displayed by surrounding it with a red frame while continuing the divided display (see FIG. 7A). Further, when the number of trained vehicles is large, the camera image in which the danger is detected may be displayed in a large size on the display device 23 (A), and the other display device 23 (B) may be used for the divided display (see FIG. 7B). ).

If both the doors of the mountain side platform and the sea side platform are opened, the display area may be insufficient for the two display devices 23, so it is desirable to devise a split display method. As an example, a method of switching the divided display in the order of the door closing operation side may be used. That is, when the doors are closed in the order of the mountain side platform and the sea side platform, the camera image of the mountain side platform may be displayed separately at the beginning, and the camera image of the sea side platform may be displayed separately after the door of the mountain side platform is closed. As another example, instead of displaying the camera images of all the vehicles separately, a method of dividing and displaying the camera images of every other car may be used. This method is also effective for trains with a large number of trains.

[At the time of departure from the platform]
After confirming the passengers getting on and off by the display device 23, the driver closes the door and starts running the train if there is no particular problem. After that, when the speed detection signal is turned on, the display of the camera image by the display device 23 is stopped. On the other hand, the danger detection process by the analysis device 26 of each vehicle is continued until the vehicle leaves the platform. In this case, similar to the danger detection process while the train is stopped, the danger detection process is performed on the image of the camera 21 (B) in the direction opposite to the train traveling direction (see FIG. 8). Whether or not the vehicle has left the platform can be determined by, for example, a home detection device, but it may be determined by another method. After that, the danger detection process by the analysis device 26 of the vehicle is stopped in the order of the vehicles leaving the platform as the train starts running (see FIG. 9).

When a danger is detected as a result of the danger detection process, the analysis device 26 transmits a danger detection signal to the display device 23. The display device 23 displays the camera image of the vehicle in which the danger is detected based on the danger detection signal received from the analysis device 26. The camera image to be displayed is a camera image in which danger is detected and a camera image in the shooting direction facing the camera image. That is, the image of the camera 21 (B) facing in the direction opposite to the train traveling direction is displayed on the display device 23 (A), and the image of the camera 21 (A) facing the train traveling direction is displayed on the display device 23 (A). It is displayed in B).

Next, a series of processes from platform entry to exit will be described with reference to the process sequence of FIG.
When the train approaches the station and starts entering the platform, the control device 24 sequentially transmits an entry detection signal to the analysis device 26 of the vehicle that has entered the platform (step S11). Upon receiving the incoming line detection signal, the analysis device 26 starts the danger detection process based on the image of the camera 21 (A) of the own vehicle facing the forward direction of the train traveling direction on the side where the door opens (step S13). ). As a result, when a danger is detected, a danger detection signal is transmitted from the analysis device 26 to the display device 23, and the display device 23 displays the danger detection image (step S14). At this time, not only the image of the camera 21 (A) in which the danger is detected but also the image of the camera 21 (B) taken from the opposite direction is displayed on the display device 23.

After that, when the train stops at the station and the door is opened, the control device 24 transmits a door opening signal to the display device 23 and the analysis device 26 of each vehicle (step S21). Upon receiving the door opening signal, the display device 23 starts the divided display of the image of the camera 21 (B) of each vehicle on the side where the door is opened and facing the direction opposite to the train traveling direction (step S22). ). Further, when the analysis device 26 receives the door opening signal, the analysis device 26 switches to the danger detection process based on the image of the camera 21 (B) of the own vehicle facing the side where the door opens and the direction opposite to the train traveling direction. (Step S23). As a result, when a danger is detected, the analysis device 26 transmits a danger detection signal to the display device 23, and the display device 23 displays the danger detection image (step S24). At this time, the camera image in which the danger is detected is displayed on the display device 23 with more emphasis than the other camera images.

After that, when the door is closed, the train starts running, and it is detected that the speed of the train exceeds a predetermined value (for example, 5 kph), the control device 24 is a display device 23 and an analysis device for each vehicle. A speed detection signal is transmitted to 26 (step S31). Upon receiving the speed detection signal, the display device 23 stops the divided display of the camera image of each vehicle (step S32). On the other hand, even if the analysis device 26 receives the speed detection signal, the analysis device 26 performs a danger detection process based on the image of the camera 21 (B) of the own vehicle facing the side where the door opens and the direction opposite to the train traveling direction. Continue (step S33). As a result, when a danger is detected, a danger detection signal is transmitted from the analysis device 26 to the display device 23, and the display device 23 displays the danger detection image (step S34). At this time, not only the image of the camera 21 (B) in which the danger is detected but also the image of the camera 21 (A) taken from the opposite direction is displayed on the display device 23.

After that, when the train starts to depart from the platform, the control device 24 sequentially transmits an exit detection signal to the analysis device 26 of the vehicle departing from the platform (step S41). The analysis device 26 stops the danger detection process at the stage of receiving the departure detection signal (step S42).
The above is a series of processes from platform entry to exit.

As described above, the monitoring system of this example has a camera 21 attached to each vehicle of the train, a display device 23 for displaying the camera image, and an analysis that performs danger detection processing for detecting the danger generated in the vicinity of the vehicle. A device 26 is provided, and the display device 23 does not display the camera image when the train enters or leaves the platform of the station, but when a danger is detected by the danger detection process even when entering or leaving the line. Is configured to display the image of the camera of the vehicle in which the danger is detected. Therefore, it is possible for the driver to quickly grasp when a danger occurs while suppressing an increase in the work load of the driver while the train is running.

Note that the display device 23 may apply the above processing to only one of the time when the train enters or leaves the platform of the station. That is, the display device 23 does not display the camera image at the time of entering the line, but may display the image of the camera of the vehicle in which the danger is detected when the danger is detected by the danger detection process even at the time of entering the line. .. Alternatively, the display device 23 does not display the camera image when the line is out, but when the danger is detected by the danger detection process even when the line is out, the display device 23 displays the image of the camera of the vehicle in which the danger is detected. May be good.

Further, the analysis device 26 is configured to perform danger detection processing based on the camera image of the vehicle located in the section of the platform when the train enters and / or leaves the platform of the station. Therefore, it is possible to detect not only an accident while the train is stopped but also an accident that occurs while the train is moving on the platform section.

Further, each vehicle of the train has a camera 21 (A) facing the train traveling direction and a camera 21 (B) facing the direction opposite to the train traveling direction, and the analysis device 26 enters the platform. At times, the danger detection process is performed based on the image of the camera 21 (A), and at the time of departure from the platform, the danger detection process is performed based on the image of the camera 21 (B). Therefore, depending on the positional relationship between the train and the platform, the danger detection process can be performed using the camera image in an appropriate shooting direction.

Further, when the display device 23 detects a danger by the danger detection process when the train enters and / or leaves the platform of the station, the camera 21 (A) and the camera 21 (B) of the vehicle in which the danger is detected are detected. ) Is configured to be displayed. Therefore, it becomes easier to confirm the state of the detected danger.

Further, the camera 21 transmits the captured image to the display device 23 and the analysis device 26, the analysis device 26 performs the danger detection process based on the image received from the camera 21, and the display device 23 uses the analysis device 26. It is configured to control the display of the image received from the camera 21 based on the result of the danger detection process. Therefore, since the display device 23 displays the video directly transmitted from the camera 21 instead of the video re-encoded by the analysis device 26, it is possible to display the video with high real-time performance at the time of danger detection.

Further, the analysis device 26 is mounted on each vehicle of the train, and the analysis device 26 is configured to perform the danger detection process based on the image of the camera 21 mounted on the same vehicle as itself. Therefore, since the processing load per analysis device 26 can be reduced, the real-time property of danger detection can be further enhanced.

In addition, cameras are attached to both the left and right sides of the vehicle, and the analysis device 26 is configured to perform danger detection processing based on the image of the camera 21 on the side where the door opens on the platform. Therefore, it is not necessary to process the camera image on the side where an accident is unlikely to occur, so that the processing load of the analysis device 26 can be reduced.

In the above example, the danger detection process for detecting the detection of the danger generated in the vicinity of the vehicle is performed based on the camera image of the vehicle, but a person detection sensor, a heat detection sensor, or the like is attached to each vehicle. Then, the danger detection process may be performed based on the detection results of these sensors. Needless to say, these may be used in combination.

Further, in the above example, although the display device 23 has a display content control function, the display content may be controlled by a device separate from the display device 23.
Further, in the above example, one analysis device 26 is provided for one vehicle 20, but one analysis device 26 may be provided for one camera 11, or a plurality of analysis devices 26 may be provided. One analysis device 26 may be provided for the vehicle 20 of the above.

Although the present invention has been described above based on one embodiment, it is needless to say that the present invention is not limited to the configurations described here and can be widely applied to systems having other configurations.
The present invention also provides, for example, a method including a technical procedure relating to the above processing, a program for executing the above processing by a processor, a storage medium for storing such a program in a computer-readable manner, and the like. Is also possible.

It should be noted that the scope of the present invention is not limited to the exemplary embodiments illustrated and described, but also includes all embodiments that bring about an effect equal to that of the object of the present invention. Moreover, the scope of the invention can be defined by any desired combination of specific features of all disclosed features.

The present invention can be used in a surveillance system using a camera attached to each vehicle of a train.

10-1 to 10-4, 20-1 to 20-4: Vehicle, 11 (A), 11 (B), 21 (A), 21 (B): Camera, 12, 22: Relay device, 13 (A) ), 13 (B), 23 (A), 23 (B): Display device, 14, 24: Control device, 15, 25: Vehicle information, 26: Analysis device

Claims

Cameras attached to each train vehicle,
A display device that displays the image of the camera and
It is equipped with an analysis device that performs danger detection processing to detect dangers that have occurred in the vicinity of the vehicle.
The display device does not display the image of the camera when the train enters and / or exits the platform of the station, but the danger is detected by the danger detection process even when the train enters and / or exits. A surveillance system characterized by displaying the image of the camera of the vehicle in which the danger is detected.
In the monitoring system according to claim 1,
The analysis device is a monitoring system characterized in that the danger detection process is performed based on an image of a camera of a vehicle located in a section of the platform at the time of entering and / or at the time of leaving the line.
In the monitoring system according to claim 1 or 2.
Each vehicle of the train has a first camera pointing in the direction of travel of the train and a second camera pointing in the direction opposite to the direction of travel of the train.
The analysis device performs the danger detection process based on the image of the first camera at the time of entering the line, and performs the danger detection process based on the image of the second camera at the time of leaving the line. A featured monitoring system.
In the monitoring system according to claim 3,
When a danger is detected by the danger detection process at the time of entering and / or at the time of leaving the line, the display device is an image of each of the first camera and the second camera of the vehicle in which the danger is detected. A monitoring system characterized by displaying.
In the monitoring system according to any one of claims 1 to 4.
The camera transmits the captured image to the display device and the analysis device, and the camera transmits the captured image to the display device and the analysis device.
The analysis device performs the danger detection process based on the image received from the camera, and performs the danger detection process.
The display device is a monitoring system characterized in that the display of an image received from the camera is controlled based on the result of the danger detection process by the analysis device.
In the monitoring system according to any one of claims 1 to 5.
The analysis device is mounted on each vehicle of the train.
The analysis device is a monitoring system characterized in that the danger detection process is performed based on an image of a camera mounted on the same vehicle as itself.
In the monitoring system according to any one of claims 1 to 6.
The cameras are attached to the left and right sides of the vehicle.
The analysis device is a monitoring system characterized in that the danger detection process is performed based on an image of a camera on the side where the door is opened on the platform.
In a monitoring method using a camera attached to each vehicle of a train, a display device that displays an image of the camera, and an analysis device that performs a danger detection process for detecting a danger that has occurred in the vicinity of the vehicle.
The display device does not display the image of the camera when the train enters and / or exits the platform of the station, but the danger is detected by the danger detection process even when the train enters and / or exits. If so, a monitoring method characterized by displaying the image of the camera of the vehicle in which the danger is detected.