JP6805328B2 - Monitoring system and monitoring method - Google Patents

Description

The present invention relates to a monitoring system and a monitoring method, and more particularly to sharing a monitored object in train operation.

Conventionally, the danger situation visually observed by the driver while driving is communicated to the command center by conversation using the train radio, and if necessary, the command center communicates the situation to the driver of the following train by conversation using the train radio. It is a voice message method of telling.
Since it is a conversational message, the amount of information is small to accurately grasp the content. Therefore, it may not be sufficient to accurately convey the danger to the command center that should judge the danger and to the following train driver.

Here, dangerous events in train operation include, for example, falling rocks, landslides, fallen trees, deep snow, flooding (rivers, bridges), poor visibility (wildfire, fog, rain), approach (people, animals), infrastructure equipment. It is defective and so on.
In the past, in order to know the state of infrastructure equipment and the like, it was necessary to run a dedicated inspection vehicle as in Patent Document 1, for example.

JP 2011-006940

There is a possibility that sufficient information cannot be transmitted only by voice and wireless communication to the command center when the preceding train discovers a dangerous event, which may affect the operation of the following train.
In addition, since the dedicated inspection vehicle is inspected only when the train is in operation, it is not possible to deal with the danger that occurred during the operation.

The present invention has been made in view of the above-mentioned conventional circumstances, and an object of the present invention is to enable the driver to accurately share the danger found.

In order to achieve the above object, the monitoring system according to the present invention is a monitoring system including a plurality of trains and a monitoring center, and the train includes a camera for photographing the outside of the vehicle and a stillness photographed by the camera. Acquires the position information of the own train, the recording device that records at least one of the image and the video, the operation unit operated by the user, the radio unit that wirelessly transmits at least one of the still image and the video taken by the camera, and the position information of the own train. When the operation unit is operated, the shooting information including at least one of the still image and the video captured by the camera and the position information acquired by the position information acquisition unit is obtained. The monitoring center includes a first control unit that transmits from the radio unit, and the monitoring center includes a communication unit that receives the shooting information transmitted from the radio unit of the train, and an operation information storage unit that stores train operation information. A second control unit that transmits the photographed information from the communication unit to a train following the train that transmitted the photographed information based on the operation information stored in the operation information storage unit. It is characterized by that.

According to the present invention, the danger found by the driver can be accurately shared.

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 structural example of the train of the monitoring system which concerns on one Embodiment of this invention. It is a figure which shows the configuration example of the monitoring center of the monitoring system which concerns on one Embodiment of this invention. It is a sequence diagram for demonstrating the operation of the monitoring system which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a configuration example of a monitoring system according to an embodiment of the present invention. The monitoring system of FIG. 1 is a railway monitoring system, which includes trains 10-1 and 10-2 (described by reference numeral 10 when the trains are not distinguished), a monitoring center 20, and a base station 30. -1, 30-2 (explained by reference numeral 20 when the base stations are not distinguished) and the network 40 are provided.

This monitoring system shares still images and videos (videos) outside the vehicle taken by the camera of train 10 with the monitoring center 20 and other trains 10, and trains mainly related to disaster information and infrastructure equipment information of railway systems. It detects and judges dangerous events in the operation of. The still images and videos taken by the train 10 are wirelessly transmitted from the train 10 to the base station 30, and then transmitted to the monitoring center 20 via the network 40. Further, the still image or video taken by train 10-1 is transmitted to another train 10-2 via the base station 30-2.

The train 10 is composed of one or more vehicles. Although FIG. 1 illustrates the case where two trains 10-1 and 10-2 exist, the number of trains 10 is not limited in this monitoring system.
The train 10 is configured as shown in FIG. 2, for example, and includes a forward monitoring camera 11, a HUB 12, a video recording device 13, an operation unit 14a, a microphone / speaker 14b, a radio unit 15, an operation management server 16, and a GPS (Global Positioning). System) A receiving unit 17, a monitor 18, and a control unit 19 are provided.

The forward monitoring camera (hereinafter, simply referred to as a camera) 11 is a camera that photographs the outside of the train 10 and photographs the front, side, and rear of the train in the traveling direction. In this embodiment, the camera 11 is photographing the front. The camera 11 captures images within a predetermined field of view (angle of view) at a predetermined imaging frame rate. In addition, the camera 11 uses the captured image (live image) as H. It is compressed in a format such as 264 / MPEG4 / JPEG and transmitted to the video recording device 13 or the monitor 18 via the HUB 12 and the network cable.

The HUB 12 connects the camera 11, the video recording device 13, the microphone / speaker 14b, the monitor 18, and the control unit 19.
The video recording device 13 records a video or a still image captured by the camera 11, and constantly records the input camera video in association with the camera 11 that captured the video and the imaging time.

The operation unit 14a is operated by a user such as a train driver, and is, for example, a button or a switch.
The microphone / speaker 14b includes a microphone for recording and transmitting a user's call and a speaker for notifying the received voice and the like.

The wireless unit 15 performs wireless communication with the base station 30 and includes a wireless antenna 15a. The wireless system of the wireless unit 15 is not limited in the present invention, and a wireless line capable of transmitting video such as LTE (Long Term Evolution), WiMAX, and wireless LAN is appropriately adopted. These wireless lines may be a public network or a self-employed network.

The operation management server 16 holds at least the operation information of the train 10, and is connected to other systems of the train 10. Train 10 operation information includes, for example, train speed information, train position information (about Kyori), boarding / alighting door opening / closing information (information on whether the boarding / alighting door is open or closed), operation route information, stop station information, etc. Operating time information, boarding / alighting information on the platform of the next station or the station currently stopped (for example, information on whether the left door is the boarding / alighting gate or the right door is the boarding / alighting gate), the number of vehicles, Includes train travel direction information and more.

The GPS receiving unit 17 includes a GPS antenna 17a and acquires the position information of the train 10.
The monitor 18 displays information on the train 10 and information received by the radio unit 15.
The control unit 19 controls the entire equipment of the train 10, and is realized by, for example, a CPU (Central Processing Unit).

The monitoring center 20 is configured as shown in FIG. 3, for example, and includes a communication unit 21, an operation management unit 22, an operation unit 23, a monitor 24, and a control unit 25.
The communication unit 21 transmits / receives information to / from the train 10 via the base station 30 and the network 40.
The operation management unit 22 manages the operation information of the train 10 along the entire railway line, and includes the operation information holding unit 22a for holding the operation information. The operation management unit 22 may acquire the current position information of each train 10 via the communication unit 21. In addition, the operation information held by the operation information holding unit 22a is linked to the identification information that identifies the train 10 along the entire line, and includes operation route information, stop station information, operation time information, number of vehicles, and train travel direction information. Includes train position information (Kyori information).

The operation unit 23 is operated by a user such as a staff member of the monitoring center 20.
The monitor 24 displays, for example, a still image or a moving image of the camera 11 of the train 10 received by the communication unit 21.
The control unit 25 controls the entire monitoring center 20, and is realized by, for example, a CPU.

Next, the operation of this monitoring system and the specific processing contents of each of the above configurations will be described with reference to FIG.
As shown in FIG. 1, when the driver (user) discovers a dangerous event (for example, flooding of a river or a defect of a bridge) during normal operation of the preceding train 10-1, the user operates the operation unit 14a. Operate (S10). Here, the operation unit 14a is a button, and it is manualized that the user operates the operation unit 14a when he / she finds a dangerous event.

Then, when the operation unit 14a is operated, the control unit 19 acquires a still image and a video from the video captured by the camera 11 and recorded in the video recording device 13 (step S11). Here, the control unit 19 generates a still image from the captured image at the time when the operation unit 14a is operated. This still image also includes time information when the still image was taken. Further, as an image, the control unit 19 displays an image from the time when the operation unit 14a is operated to a certain time after the operation, or an image from before the predetermined time when the operation unit 14a is operated to after a certain time has elapsed. Read from the video recording device 13.

Further, the control unit 19 acquires the position information of the train 10-1 at the time when the operation unit 14a is operated by the user from the operation management server 16 or the GPS receiving unit 17 (step S12). That is, the operation management server 16 and the GPS receiving unit 17 function as a position information acquisition unit that acquires the position information of the train 10.

Further, when the operation unit 14a is operated by the user, the user uses the microphone 14b to record a description of the dangerous event. The voice is stored in a storage unit (not shown). Alternatively, after the user operates the operation unit 14a, another button or switch of the operation unit 14a is further operated to determine the type of dangerous event (for example, natural disaster, poor visibility, intrusion, poor infrastructure) or danger level (for example, poor infrastructure). , High, medium, low) is input and stored in a storage unit (not shown) (step S13).

In the present embodiment, at least one of the recorded voice, the danger event type information, and the danger level information described above is transmitted by the control unit 19 as the danger event information.
The order of the processes in steps S11 to S13 described above is not limited in the present invention, and may be simultaneous or interchanged.

Then, when steps S11 to S13 are completed, the control unit 19 receives train identification information for identifying the train 10-1, a still image and / or video read from the video recording device 13, and acquired position information. The dangerous event information and the photographing information including the information are transmitted from the radio unit 15 to the monitoring center 20 via the base station 30. The train identification information may be stored in a storage unit (not shown), or may be information added to a still image, a video, position information, or dangerous event information. Here, the control unit 19 includes the train identification information held by the operation management server 16 in the shooting information and transmits the information.

In the monitoring center 20, the communication unit 21 receives the shooting information from the train 10-1 via the base station 30 and the network 40 (step S20).
Next, the control unit 25 identifies the train 10-1 based on the train identification information included in the received shooting information, and determines the source train (step S21).

When the control unit 25 receives the shooting information, the control unit 25 displays a still image or a video on the monitor 24, and outputs the sound from the speaker (not shown) if the sound is added. At this time, it is preferable that the control unit 25 also displays the information identifying the train 10-1, the position information, and the dangerous event information on the monitor 24. As a result, the observer can quickly and accurately grasp the dangerous event.

Then, the control unit 25 determines whether or not to distribute the received shooting information to another train 10-2 (step S22). The delivery determination by the control unit 25 is automatically performed based on the dangerous event information included in the shooting information, is performed based on the operation of the operation unit 23 by the observer (user), and all the received shooting information. Any method may be adopted as in the case of determining that the information is delivered.

When automatically determining based on the dangerous event information, the control unit 25 determines that the danger level of the dangerous event information is higher than or equal to a predetermined level, for example, high or medium, and if it is lower than the predetermined level (danger). (If the level is low), it is judged that delivery is unnecessary.
Further, based on the operation by the user, the user confirms the information displayed on the monitor 24, and when it is determined that the information should be distributed to another train, the operation unit performs a predetermined operation, and the control unit 25 performs the predetermined operation. Judge that it will be received and delivered.

If the control unit 25 determines that distribution is unnecessary, the process described later is not performed.
When the control unit 25 determines that the distribution is to be performed, the control unit 25 subsequently determines to which train the shooting information is transmitted based on the operation information and / or the position information.
When the control unit 25 determines based on the operation information, the control unit 25 extracts the following train of the train 10-1 that has transmitted the shooting information from the operation information held by the operation information holding unit 22a of the operation management unit 22. The operation information includes at least the first station, the last station, the stop station, the operation route, and the operation timetable (operation time information) for each train, and the control unit 25 is based on the train 10-1 to train 10-1. Identify the following trains.

The control unit 25 may use all the following trains as the transmission destinations of the shooting information, the following predetermined number of trains, or the shooting location of the train 10-1 within a predetermined time (here, the operation unit 14a is operated). Determine the destination of the train passing through the location).
Further, in the case of a train operation system in which the operation management unit 22 of the monitoring center 20 grasps the positions of all the trains traveling along the railway line, the control unit 25 is set to the train position held by the operation management unit 22. Based on this, the following trains existing behind train 10-1 are identified. When it is necessary to consider the traveling direction of the train, the following train is specified in consideration of the traveling direction held by the operation information holding unit 22a and the operating information of the operating route in addition to the position information.

Here, when the control unit 25 determines the following train 10-2 as the transmission destination train (step S23), the control unit 25 includes distribution information including the shooting instruction information in the shooting information received from the train 10-1. Is transmitted from the communication unit 21 to the following train 10-2 (step S24).
When the distribution information is wirelessly transmitted to the following train 10-2 via the network 40 and the base station 30-2 and the radio unit 15 of the following train 10-2 receives the distribution information (step S30), the control unit 19 distributes. The shooting information included in the information is displayed on the monitor 18. The display here is preferably the same as the display on the monitor 24 in the monitoring center 20. As a result, the driver of the following train 10-2 can accurately know in advance that a dangerous event has occurred in which he / she is going to travel.

Then, the control unit 25 determines the still image and the still image at that position based on the position information included in the shooting instruction information or the position information included in the shooting information based on the shooting instruction information included in the distribution information. The video is acquired from the video recording device 13 (step S32). At this time, whether the control unit 25 has reached the position to be photographed (image acquisition) by comparing the position information included in the distribution information with the position information acquired by the operation management server 16 or the GPS receiving unit 17. Judge whether or not.

Next, the control unit 25 adds train identification information and position information to the acquired still images and videos, and transmits them as shooting information from the radio unit 15 to the monitoring center 20 (step S33).
When the following train 10-2 transmits the shooting information, the dangerous event information may be added to the shooting information by the operation of the user's operation unit 14a.

Then, when the communication unit 21 of the monitoring center 20 receives the shooting information (step S25), the control unit 25 displays the shooting information on the monitor 24, and if audio is added as dangerous event information, it is reproduced and output from the speaker. (Step S26). At this time, it is preferable that the still image or video acquired from the preceding train 10-1 and the still image or video acquired from the following train 10-2 are displayed side by side on the monitor 24. This allows the observer to easily recognize changes in the hazard.
When the control unit 25 of the monitoring center 20 receives the shooting information from the following train 10-2, the control unit 25 of the monitoring center 20 may re-execute the processes of steps S20 to S24 described above.

As described above, according to the monitoring system as one embodiment of the present invention, when the driver of the operating train 10 discovers a dangerous event during operation, the dangerous event is based on the operation of the operation unit 14. Since the still image or video of the image is transmitted to the monitoring center 20, the danger found by the driver can be accurately shared. At this time, since the position information is added to the shooting information, the location of the dangerous event can be grasped.

In addition, by adding the driver's voice, danger type, and danger level to the shooting information, it is possible to share dangerous events more accurately.
Further, since the monitoring center 20 transmits the received photographing information to the succeeding train 10, the driver of the train 10 who passes the point where the dangerous event exists later can be surely notified of the dangerous event.

By transmitting a shooting instruction to the following train 10, the monitoring center 20 can confirm the change over time of the dangerous event, and determines in real time whether or not the train operation is affected. be able to. As a result, a catastrophe such as an accident on the train 10 can be prevented.
Further, in the following train 10, the control unit 19 automatically acquires a still image or a video from the video recording device 13 based on the shooting instruction, so that the burden on the driver can be reduced.

Further, in the train 10, the control unit 19 acquires and transmits the video from the time point before the time when the operation unit 14a is operated from the video recording device triggered by the operation of the operation unit 14a by the user. Even if the driver discovers a dangerous event and delays the operation unit 14a, the image of the dangerous event can be shared in the system, improving user convenience and more reliably sharing the dangerous event. Become.

Here, the configurations of the system, the device, and the like according to the present invention are not necessarily limited to those shown above, and various configurations may be used. For example, in the above-described embodiment, the case where the wireless unit 15 wirelessly communicates with the base station 30 while traveling and transmits shooting information has been described. However, the train 10-1 may transmit the photographing information by wirelessly communicating with the base station (master station) 30 installed at the station from the radio unit 15 when the train is stopped instead of running.

As a result, the real-time property is impaired, but since the station is stopped, a higher-speed and large-capacity wireless line (for example, a millimeter-wave communication line) can be easily prepared, and the certainty of information transmission can be improved. In this case, the transmission of the photographing information from the monitoring center 20 to the following train 10-2 may be performed according to the above-described embodiment or when the station is stopped. It should be noted that which one may be changed according to the danger level, and if the danger level is high, that is, if there is an urgency, the base station 30 transmits the train to the traveling train according to the above-described embodiment, and the danger level is low. For example, it is preferable to send when the station is stopped. The operation management unit 22 usually manages which train stops at which station.

Further, in the above-described embodiment, the control unit 25 determines the train based on the train identification information, but the control unit 25 determines the train based on the operation information (route and timetable information, etc.) and the position information of each train. You may discriminate.
Further, in the above-described embodiment, the case where the monitoring center 20 transmits the shooting instruction to the following train 10-2 has been described as an example, but the shooting instruction may not be transmitted. In addition, depending on the type and danger level of the dangerous event, the shooting instruction may be transmitted to the following train 10-2 only when the danger or urgency is high. As a result, the wireless line is used only when necessary, so that the usage efficiency is improved.

Further, the present invention can be provided, for example, as a method or method for executing the process according to the present invention, a program for realizing such a method or method, a storage medium for storing the program, or the like.
As an example, the display control unit that controls the display of the monitor may be realized by executing a predetermined program on the computer of the monitor or the server. That is, for example, the display control unit may be realized by the processor of the computer constituting the display control unit reading a program stored in a data storage device such as a hard disk or a flash memory into the memory and executing the program. ..

As described above, the monitoring system of the present invention is configured as follows, for example.
A monitoring system with multiple trains and a monitoring center
The train
With a camera that shoots outside the car
A recording device that records at least one of a still image and a video image taken by the camera, and
The operation unit operated by the user and
A wireless unit that wirelessly transmits at least one of a still image and a video image taken by the camera,
The location information acquisition unit that acquires the location information of your train,
When the operation unit is operated, the first radio unit transmits shooting information including at least one of a still image and a video captured by the camera and position information acquired by the position information acquisition unit. Equipped with a control unit
The monitoring center
A communication unit that receives the shooting information transmitted from the radio unit of the train, and
An operation information storage unit that stores train operation information,
A second control unit that transmits the shooting information from the communication unit to a train following the train that has transmitted the shooting information based on the operation information stored in the operation information storage unit is provided. A monitoring system featuring.

The train
When the radio unit receives the photographed information photographed by another train transmitted from the communication unit, the radio unit further includes a display unit that displays a still image or video included in the photographed information and position information. The above monitoring system.
The monitoring system is characterized in that the first control unit transmits at least one of a still image and a video image taken by its own camera from the radio unit based on the position information.

Based on the position information included in the shooting information, the second control unit transmits an instruction to transmit the shooting information including the shooting position information to the following train from the communication unit.
The first control unit is characterized in that at least one of a still image and a video image taken by its own camera is transmitted from the radio unit based on the shooting position information included in the transmission instruction. The above monitoring system.

The monitoring system is characterized in that the first control unit includes a still image taken by the camera when the operation unit is operated in the shooting information.

The monitoring system is characterized in that the first control unit reads out an image including an image including an image a predetermined time before the operation unit is operated from the storage device and includes the image in the shooting information.

The monitoring system, wherein the second control unit determines the following train based on the position information or the train identification information included in the shooting information.

INDUSTRIAL APPLICABILITY The present invention can be used in a monitoring system for sharing information taken by a train outside the vehicle.

10, 10-1, 10-2 Train 11 Camera 12 HUB
13 Video recording device 14a, 23 Operation unit 14b Microphone / speaker 15 Radio unit 15a Wireless antenna 16 Operation management server 17 GPS receiver 17a GPS antenna 18, 24 Monitor 19, 25 Control unit 20 Monitoring center 21 Communication unit 22 Operation management unit 22a Operation information holding unit 30, 30-1, 30-2 Base station 40 network

Claims (6)

A monitoring system with multiple trains and a monitoring center
The train
With a camera that shoots outside the car
A recording device that records at least one of a still image and a video image taken by the camera, and
The operation unit operated by the user and
A wireless unit that wirelessly transmits at least one of a still image and a video image taken by the camera,
The location information acquisition unit that acquires the location information of your train,
When the operation unit is operated, the first radio unit transmits shooting information including at least one of a still image and a video captured by the camera and position information acquired by the position information acquisition unit. Equipped with a control unit
The monitoring center
A communication unit that receives the shooting information transmitted from the radio unit of the train, and
An operation information storage unit that stores train operation information,
For the train following the train that transmitted the shooting information based on the operation information stored in the operation information storage unit, for the following train based on the position information included in the shooting information. A second control unit for transmitting a transmission instruction of the shooting information including the shooting position information from the communication unit is provided .
The first control unit is characterized in that at least one of a still image and a video image taken by its own camera is transmitted from the radio unit based on the shooting position information included in the transmission instruction . Monitoring system. The train
When the radio unit receives the photographed information photographed by another train transmitted from the communication unit, the radio unit further includes a display unit that displays a still image or video included in the photographed information and position information. The monitoring system according to claim 1. The monitoring according to claim 1, wherein the first control unit transmits at least one of a still image and a video image taken by its own camera from the radio unit based on the position information. system. The monitoring system according to claim 1, wherein the first control unit includes a still image taken by the camera when the operation unit is operated in the shooting information. The monitoring system according to claim 1, wherein the first control unit reads an image including an image a predetermined time before the operation unit is operated from the storage device and includes the image in the shooting information. .. The monitoring system according to claim 1, wherein the second control unit determines the following train based on the position information or the train identification information included in the shooting information.

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