Train traveling support device and train traveling support method

Abstract

To efficiently notify a watchman of valuable information according to a condition of a train regarding a station platform.SOLUTION: A train traveling support device comprises: a person position determination unit which determines a physical relation between a person at a station platform and a train based on an imaging result of a camera whose imaging range includes the vicinity of a train side face; an event detection unit which detects an event to be reported to a watchman based on the imaging result of the camera; an identification unit which identifies a condition of the train regarding the station platform; a display control unit which notifies the watchman of the physical relation of the person and / or information on the event by displaying and outputting the same on a prescribed display device. The display control unit selects, based on the identification result by the identification unit, subjects to be displayed and outputted and / or display mode.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a train travel support device and a train travel support method. [Background technology]

[0002] Conventionally, there is a technology described in Japanese Patent Laid-Open Publication No. 2019-191853 (Patent Document 1) for ensuring safety when boarding and disembarking trains. This publication states that "an image acquired from an imaging unit C, which is a detection unit provided on the side of a railway vehicle T, is processed and the processed image is displayed on a display unit M." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-191853 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional technology can acquire and display images of the sides of train cars. However, when a driver needs to check safety while driving, it is a significant burden to check safety using only real-time images of all cars. For this reason, it is necessary to efficiently notify important information to drivers and other safety monitors who are responsible for ensuring safety based on images of the sides of train vehicles, thereby supporting the safe running of trains. Here, the information to be notified to the monitor changes depending on the transition of the state from when the train enters the station platform until when it departs.

[0005] The present invention aims to efficiently notify important information according to the status of the train on the station platform. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, one representative train running support device of the present invention comprises a person position determination unit that determines the positional relationship between a person on a station platform and the train using the image capture results of a camera whose imaging range includes the area near the side of the train, an event detection unit that uses the image capture results of the camera to detect an event that should be notified to an observer, an identification unit that identifies the state of the train relative to the station platform, and a display control unit that displays and outputs information regarding the positional relationship of the person and / or the event on a specified display device to notify the observer, and is characterized in that the display control unit selects the items to be displayed and / or the display format based on the identification results of the identification unit. Furthermore, one representative train operation support method of the present invention includes a person position determination step in which a train running support device mounted on a train uses image capture results from a camera whose imaging range includes the vicinity of the side of the train to determine the positional relationship between a person on a station platform and the train, an event detection step in which, using image capture results from the camera, an event that should be notified to an observer, an identification step in which the state of the train relative to the station platform is identified, and a display control step in which information regarding the positional relationship of the person and / or the event is displayed and output on a predetermined display device to notify the observer, wherein the display control step is characterized in that the items to be displayed and / or the display format are selected based on the identification results from the identification step. [Effects of the Invention]

[0007] According to the present invention, important information corresponding to the state of the train on the station platform can be efficiently notified. Problems, configurations, and effects other than those described above will become apparent from the following description of the embodiment. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an explanatory diagram of train operation support according to the first embodiment. [Figure 2] An explanatory diagram of the camera placement on the vehicle [Figure 3] System configuration including train operation support equipment [Figure 4] Examples of display on a display device [Figure 5] An explanatory diagram of information displayed on a display device. [Figure 6] Examples of vehicle markings [Figure 7] An explanatory diagram of notification control based on the departure and arrival phase [Figure 8] FIG. 10 is an explanatory diagram illustrating a display mode of an event notification. [Figure 9] Specific examples of display transitions [Figure 10] Flowchart showing the processing procedure of the train running support device [Figure 11] Flowchart showing the procedure for reporting an event DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment will be described with reference to the drawings. [Example]

[0010] Fig. 1 is an explanatory diagram of train travel assistance according to the first embodiment. As shown in Fig. 1, a camera 42 is installed in each carriage of the train, the camera 42 having an imaging range that includes the vicinity of the side of the train. When the train is entering a station platform, the camera 42 can capture an image of a person present on the station platform.

[0011] The train running support device 10 is a device mounted on a train, and efficiently notifies important information to a monitor who is responsible for checking the safety of the train, based on the image capture results of the camera 42. In the following embodiment, the driver will be used as an example of the monitor. Specifically, the train running assistance device 10 acquires the image capture results of the camera 42 and detects for each car an event that should be reported to the driver. Events that should be reported include falling, running towards, running alongside, getting caught in a door, and dragging. Of these events, falling is an event in which a person falls from a station platform onto the tracks, and has a particularly high priority for reporting. Running towards, running alongside, getting caught in a door, and dragging are examples of events with a lower priority than falling. For convenience, falling is referred to as the first event, and other events are referred to as the second events.

[0012] Furthermore, the train running assistance device 10 determines the positional relationship between a person on the station platform and the train, in addition to the first and second events to be notified to the driver. The mere presence of a person on the station platform does not necessarily mean that an event should be notified to the driver, but there are cases where the positional relationship between the person and the train should be notified to the driver. For example, when the train doors are open, there is no need to notify the driver even if the train and a person are close to each other, but when the train doors are closed and before it departs, the driver should be notified that the train and a person are close to each other.

[0013] Here, we define four arrival and departure phases as the state of a train relative to a station platform. The approach phase is the state from when the train enters the station platform until it stops. The boarding and alighting phase is the state when the train stops and the doors are open. The departure preparation phase is the state from when the train closes the doors until it departs. The exit phase is the state from when the train departs until it leaves the station platform. The train running support device 10 distinguishes between the four departure and arrival phases using information such as train position information, speed information, and door open / close state information.

[0014] The train travel support device 10 notifies the driver of the detected event and the positional relationship with the person. This notification is performed, for example, by controlling the display of a display device provided in the driver's cab.

[0015] When performing display control, the train travel assistance device 10 selects items to be displayed and display modes based on the identification result of the departure and arrival phase, thereby enabling efficient notification of important information in each departure and arrival phase.

[0016] Furthermore, when performing display control, the train travel assistance device 10 displays and outputs the detection results of the first event and the second event in a distinguishable manner. Furthermore, a first operation receiving means for checking details of the first event and a second operation receiving means for checking details of the second event are separately provided. Therefore, the notification and confirmation processes can be separated depending on the importance of the event, making it possible to prevent important information from being overlooked.

[0017] 2 is an explanatory diagram of the placement of cameras on vehicles. Cameras 42 are placed on the left and right sides of each vehicle, near both ends in the longitudinal direction. In other words, four cameras 42 are placed on one vehicle. Each camera 42 covers the vicinity of the vehicle door within its imaging range. The train travel assistance device 10 uses the image capture results from the camera 42 on the station platform side and in the direction of travel for real-time display. The image capture results from the two cameras 42 on the station platform side may be used for detecting events and determining the positional relationship with people. Using the same camera 42 for real-time display on all vehicles is effective in avoiding confusion for the driver. In addition, the camera 42 in the direction of travel is used because it is less susceptible to the effects of wind, rain, and snow while the train is traveling, and therefore better image quality can be expected.

[0018] 3 is a configuration diagram of a system including the train travel support device 10. In addition to the four cameras 42 already described, each vehicle is provided with a relay device 41. The relay device 41 transmits images captured by the camera 42 of the vehicle as imaging result data to the train travel support device 10. The relay device 41 can also receive and relay imaging result data of other vehicles from the relay devices 41 of other vehicles.

[0019] The train travel support device 10 is connected to a train status information providing device 31, one or more display devices 32, and a relay device 41. The train status information providing device 31 is a device that provides information used to identify departure and arrival phases. The train status information providing device 31 includes a position identifying device using a GPS (Global Positioning System) or the like, a drive control device that can provide train speed information, and a car body control device that can provide information on the open / closed status of doors. The display device 32 is installed in the driver's cab and displays information to the driver. The display device 32 may be a liquid crystal display or the like.

[0020] The train travel support device 10 includes a storage unit 11 and a control unit 12 therein. The storage unit 11 is a hard disk drive or the like, and stores the imaging result data of the cameras 42 received via the relay device 41. It is preferable that all four cameras 42 installed in each vehicle record continuously, and all of the imaging result data be stored in the storage unit 11. The imaging result data can be managed by associating it with the results of determining the person's position, the results of detecting the event, whether the event has been confirmed by the driver, and so on.

[0021] The control unit 12 is a control unit that controls the overall operation of the train travel assistance device 10, and includes a recognition unit 21, a person position determination unit 22, an event detection unit 23, and a display control unit 24. The control unit 12 may be realized by software. In this case, a CPU (Central Processing Unit) loads predetermined programs into memory and executes them sequentially, thereby performing operations corresponding to the recognition unit 21, the person position determination unit 22, the event detection unit 23, and the display control unit 24.

[0022] The identification unit 21 identifies the state of the train relative to the station platform. Specifically, the identification unit 21 acquires information such as train position information, speed information, and door open / close state information from the train status information providing device 31, and uses the acquired information to identify whether the train is in the approach phase, boarding / alighting phase, departure preparation phase, or exit phase.

[0023] The person position determination unit 22 uses the imaging result data of the camera 42 to determine the positional relationship between a person on the station platform and a train. Specifically, the person position determination unit 22 determines the presence or absence of a person in the danger area and the caution area by setting a predetermined range from the train as a danger area and setting a caution area outside the danger area. As an example, the area between the yellow line on the station platform and the train may be set as the danger area, and the area above the yellow line may be set as the caution area. The person position determination unit 22 determines the position of a person in each of the multiple cars that make up the train.

[0024] The event detection unit 23 performs image processing on the image capture data from the camera 42 to detect an event to be reported to the driver. The event detection unit 23 detects a pre-designated event as a first event and detects an event with a lower priority for reporting than the first event as a second event. Preferably, the first event is an event with a higher priority for visual confirmation, and the second event is an event with a lower priority for visual confirmation than the first event. Specifically, the event detection unit 23 detects a person falling from a station platform as a first event and detects other events with a lower priority for reporting than a fall as second events. Other events include running toward, running alongside, getting caught in a door, and dragging. Running toward is an event in which a person quickly approaches a vehicle. Running alongside is an event in which a person on the platform moves in the same direction as the train. Getting caught in a door is an event in which a person or object gets caught in a vehicle door. A drag is an event in which a person or object is physically attached to a train and moves in the same direction and at the same speed as the train. The event detection unit 23 detects an event for each of the multiple cars that make up the train.

[0025] The display control unit 24 displays and outputs information relating to the positional relationships of people and events on the display device 32 to notify the driver. At this time, the display control unit 24 selects the items to be displayed and / or the display mode based on the result of the identification by the identification unit 21. Specifically, the display control unit 24 notifies the detection results of the first event and the second event during the approach phase, departure preparation phase, or exit phase. On the other hand, during the boarding / exiting phase, the display control unit 24 notifies the detection result of the first event and suppresses the notification of the detection result of the second event.

[0026] Furthermore, the display control unit 24 issues a notification that a person is in a danger area during the approach phase or the exit phase. On the other hand, the display control unit 24 issues a notification that a person is in a danger area and a notification that a person is in a caution area during the departure preparation phase or the boarding / exiting phase.

[0027] Furthermore, the display control unit 24 uses a display mode for the notification in the departure preparation phase that is more conspicuous than the display modes in other phases. Conspicuousness indicates how easily something attracts attention or stands out. While visibility indicates how easily something can be found when consciously searching for it, conspicuousness can be said to be how easily something can be noticed when not consciously searching for it.

[0028] The display control unit 24 displays a schematic representation of the train's carriage configuration and controls the display of information about the positional relationships of people and / or events in association with the carriages. When issuing a notification about an event, the display control unit 24 uses the entirety of the carriages displayed in the schematic representation for the notification, and when issuing a notification about the positional relationships of people, the display control unit 24 uses only a portion of the carriages displayed in the schematic representation for the notification. When issuing a notification about information about an event, the display control unit 24 displays a first event and a second event in a distinguishable manner. When multiple events are detected in one carriage, the display control unit 24 controls the display in the following order of priority: a first event for which no operation has been accepted via a first operation accepting means (described later), a first event for which an operation has been accepted via the first operation accepting means, and a second event for which no operation has been accepted via a second operation accepting means (described later).

[0029] The display control unit 24 also displays the image capture data of the camera 42 in addition to displaying the train's carriage configuration in a schematic manner. Specifically, the display control unit 24 divides the display area of ​​the display device into a plurality of areas that correspond one-to-one to a plurality of vehicles and display the imaging results for each vehicle in real time, and an area that displays an enlarged image of one of the plurality of vehicles. The display control unit 24 targets the enlarged display of the imaging results for the vehicle that detected the first event and / or the second event.

[0030] The display control unit 24 displays the imaging result data for the vehicle that is the target of the enlarged display in real time, and displays and outputs the detection results of the first event and the second event in a distinguishable manner. Furthermore, a first operation accepting means for checking the details of the first event and a second operation accepting means for checking the details of the second event are separately provided. Specifically, the first operation accepting means and / or the second operation accepting means may be superimposed on the enlarged image result. The display control unit 24 uses the image capture results from the camera on the station platform side and in the direction of travel for real-time display.

[0031] The display control unit 24 displays a recording / playback button as a first operation acceptance means when a first event is detected, and displays a recording / playback button as a second operation acceptance means when a second event is detected. When an operation for the first operation acceptance means is accepted, the display control unit 24 reads out and plays back the imaging results including the corresponding first event from the storage unit 11, and when an operation for the second operation acceptance means is accepted, the display control unit 24 reads out and plays back the imaging results including the corresponding second event from the storage unit 11.

[0032] Fig. 4 is a specific example of a display by the display device 32. In Fig. 4, two display devices 32 are arranged side by side to display an image. As shown in Fig. 4, the display device 32 displays a plurality of display areas 51, one or more display areas 52, and a train formation display 60.

[0033] The plurality of display areas 51 correspond one-to-one to the plurality of vehicles and display the imaging results for each vehicle in real time. The display area 52 is larger than the display area 51 and displays an enlarged image of one of the vehicles. The display area 52 is used to display the image of a vehicle in which an event has been detected. It is also possible to enlarge and display the image of a vehicle selected by the driver. The display area 52 is capable of displaying in real time and replaying past image results read from the storage unit 11.

[0034] The train configuration display 60 is a schematic representation of the train configuration. The train configuration display 60 can be used to notify the position of a person, a detected event, and the driver's confirmation status of the detected event.

[0035] Fig. 5 is an explanatory diagram of information displayed on display device 32. As shown in Fig. 5, a vehicle icon 53 is displayed in display area 51. Vehicle icon 53 indicates the vehicle number. Furthermore, vehicle icon 53 indicates the position of camera 42 installed on the vehicle at which the image capture result is displayed in display area 51. A vehicle icon 53 and a button 54 are displayed in the display area 52. The button 54 is used to accept an operation to select whether to display real-time imaging results in the display area 52 or to play back and display past imaging results read from the storage unit 11.

[0036] When the event detection unit 23 detects a fall event, the display control unit 24 displays a fall replay button in the display area 52. When the event detection unit 23 detects an event other than a fall, the display control unit 24 displays an other replay button in the display area 52. When the event detection unit 23 detects both a fall event and other events, the display control unit 24 displays a fall replay button and an other replay button in the display area 52.

[0037] When the fall playback button is operated, the display control unit 24 reads out the imaging result data including the corresponding fall event from the storage unit 11, plays it back, and displays a live playback button and a confirmation completion button. When the live playback button is operated, the display control unit 24 transitions to real-time display. When the confirmation completion button is operated, the display control unit 24 associates a confirmation completion flag with the fall event, stores it in the storage unit 11, and transitions to real-time display.

[0038] When the other playback button is operated, the display control unit 24 reads out and plays back the imaging result data including the corresponding event from the storage unit 11, and displays the live playback button. When the live playback button is operated, the display control unit 24 transitions to real-time display.

[0039] The train formation display 60 includes a running direction display 61 and a train car display 62. The number of train car displays 62 is the same as the number of train cars, and each car is assigned a train car number.

[0040] FIG. 6 is a specific example of a vehicle display. When a fall or other event is detected, the entire vehicle display 62 is used to notify the event. The type of event is also indicated by a display such as "fall" or "other." For other events, the notification is canceled when the event is resolved. For a fall event, the notification is canceled by a confirmation completion operation, and a display indicating confirmation completion is displayed. In FIG. 6, a check box display is a display indicating confirmation completion.

[0041] If there is a person in a danger area or caution area, part of the vehicle display 62 is used to notify the person. The part used for the notification is determined depending on the positional relationship between the danger area or caution area and the vehicle. In FIG. 6, cars 1 and 2 are displayed in this order from the left, indicating a situation in which the train is traveling in the direction of car 1. In this situation, if the station platform is on the right side of the direction of travel, the vehicle display 62 will display, from the top, the person detection in the caution area, the person detection in the danger area, and the vehicle number in that order. If the station platform is on the left side of the direction of travel, the vehicle display 62 will display, from the top, the vehicle number, the person detection in the danger area, and the person detection in the caution area in that order.

[0042] Figure 7 is an explanatory diagram of the control of notifications based on the departure and arrival phases. As shown in Figure 7, notification pattern A is used in the approach and exit phases. Notification pattern B is used in the boarding and alighting phase, and notification pattern C is used in the departure preparation phase.

[0043] Notification pattern A notifies the driver of the detection of a fall, the detection of other events, confirmation of a fall, and the presence of a person in a danger area, but does not notify the driver of the presence of a person in a caution area. A caution area is a position where, for example, a train is instructing a person on a station platform to "step back to this position" while the train is moving, and there is no need to issue a special warning to the driver even if a person is in the caution area. Notification pattern B notifies of fall detection, confirmation of fall detection, presence of a person in a danger area, and presence of a person in a caution area, but does not notify of other event detections. This is to prevent danger even if someone runs up to the vehicle while getting on or off. Notification pattern C notifies that a fall has been detected, that other events have been detected, that a fall has been confirmed, that a person is in a danger area, or that a person is in a caution area. Furthermore, notification pattern C notifies that a person is in a danger area or a caution area using a display that is more conspicuous than other notification patterns. This is because during the departure preparation phase, the location of people in danger areas or caution areas is particularly important for determining whether or not to depart.

[0044] FIG. 8 is an explanatory diagram illustrating a display mode of an event notification. If a fall event has not been detected, there is no need to issue an alert. If a fall event has been detected and the video has not yet been confirmed, with past image capture results not being played back, the display control unit 24 causes the entire vehicle display 62 to flash in red and displays "Fall". If a fall event has been detected and the video has been confirmed by playing back past image capture results, the display control unit 24 lights up the entire vehicle display 62 in red and displays "Fall". If a fall event has been detected and a confirmation completion operation has been received, the display control unit 24 displays a green checkbox on the vehicle display 62.

[0045] If another event is detected, there is no need to notify the driver. If another event is being detected, the display control unit 24 lights up the entire vehicle display 62 in red and displays "Other." The priority of event notifications is highest when a fall incident is detected but the video has not yet been confirmed, at priority "1." If a fall incident is detected and the video has been confirmed, priority "2." If other events are being detected, priority "3." If the fall incident has been confirmed and operation has been performed, priority "4." If multiple events occur in vehicle 1, the one with the highest priority will be displayed.

[0046] 9 shows a specific example of the transition of the display. In the initial state, if there is no event to be notified, the plurality of display areas 51 display the imaging results of the corresponding vehicle in real time, and the display area 52 does not display any output.

[0047] When the event detection unit 23 detects an event in the second car, the second car display 62 flashes or lights up, and the left display area displays an enlarged image of the second car in real time. After that, when the event detection unit 23 detects an event in the seventh car, the seventh car display 62 flashes or lights up, and the right display area displays an enlarged image of the seventh car in real time.

[0048] Furthermore, if the driver manually requests an enlarged view of the fifth car, the enlarged view of the oldest second car is pushed out, the enlarged view of the seventh car is moved to the left display area 52, and the right display area 52 is used for the enlarged view of the newest fifth car.

[0049] 10 is a flowchart showing the processing procedure of the train travel assistance device 10. First, the storage unit 11 acquires and stores the image capture results of the camera 42 (step S101). The person position determination unit 22 performs image processing on the image capture results of the camera 42 to determine the person position (step S102). The event detection unit 23 performs image processing on the image capture results of the camera 42 to detect a first event (fall) and a second event (other event) (step S103).

[0050] The storage unit 11 stores the imaging results, the event detection results, and the position of the person in association with each other (step S104). The identification unit 21 identifies the four departure and arrival phases using information such as the train's position information, speed information, and door open / close status information (step S105). The display control unit 24 controls the display of the detected events and their positional relationships with the person on the display device 32 (step S106), and ends the processing. As already explained, in step S106, the display control unit 24 selects the items to be displayed and the display mode based on the identification result of the departure and arrival phase, and displays and outputs the detection results of the first event and the second event in a distinguishable manner.

[0051] 11 is a flowchart showing the procedure for notifying an event. First, the display control unit 24 acquires the result of event detection by the event detection unit 23 (step S201). If the event detection unit 23 has not detected an event (step S202; No), the process returns to step S201.

[0052] If the event detection unit 23 detects an event (step S104; Yes), it displays an enlarged live image (real-time image capture result) of the vehicle that detected the event (step S203), and displays a play button according to the type of the detected event (first event or second event) (step S204).

[0053] If an operation on the play button is accepted (step S205; Yes), the display control unit 24 plays back the imaging results stored in the storage unit 11 and sets a video playback completion flag (step S206). Thereafter, a confirmation completion button is displayed (step S207). If an operation on the confirmation completion button is not accepted (step S208; No) or if an operation on the play button is not accepted (step S205; No), the process returns to step S205.

[0054] If an operation on the confirmation completion button is accepted (step S208; Yes), the display control unit 24 sets a confirmation completion flag (step S2089), ends the enlarged display (step S210), and ends the process.

[0055] As described above, the disclosed train running support device 10 includes a person position determination unit 22 that determines the positional relationship between a person on a station platform and the train using the image capture results of a camera 42 whose imaging range includes the vicinity of the side of the train, an event detection unit 23 that detects an event that is to be notified to an observer using the image capture results of the camera 42, an identification unit 21 that identifies the state of the train relative to the station platform, and a display control unit 24 that displays and outputs information related to the positional relationship of the person and / or the event on a predetermined display device 32 to notify the observer. The display control unit 24 selects the items to be displayed and / or the display format based on the identification results of the identification unit 21. With this configuration and operation, the train travel support device 10 can efficiently notify important information according to the state of the train on the station platform.

[0056] In addition, the identification unit 21 identifies four phases as the state: an approach phase during which the train enters the station platform and stops; a boarding / alighting phase during which the train stops and opens its doors; a departure preparation phase during which the train closes its doors and departs; and an exit phase during which the train departs and leaves the station platform. This allows important information to be efficiently communicated in each phase of departure and arrival.

[0057] The event detection unit 23 detects the person's fall from the station platform as a first event, and detects an event that has a lower priority for notification than the fall as a second event. The display control unit 24 notifies the detection results of the first event and the second event during the approach phase, the departure preparation phase, or the exit phase, and suppresses the notification of the detection result of the second event and notifies the detection result of the first event during the boarding / exiting phase. Therefore, unnecessary notifications during the boarding and disembarking phase can be suppressed.

[0058] Furthermore, the person position determination unit 22 determines a danger area within a predetermined range from the train, and sets a caution area outside the danger area, and determines whether or not there is a person in the danger area and the caution area. The display control unit 24 issues an alert that a person is in the danger area during the entry phase or the exit phase, and issues an alert that a person is in the danger area and an alert that a person is in the caution area during the departure preparation phase or the boarding / exiting phase, and uses a display mode for the alert in the departure preparation phase that is more eye-catching than the display modes in other phases. This allows for efficient notification of the positional relationship between the train and the person.

[0059] In addition, the camera 42 is provided for each vehicle that constitutes the train, the person position determination unit 22 determines the position of a person for each vehicle, the event detection unit 23 detects an event for each vehicle, and the display control unit 24 displays a schematic representation of the train's vehicle formation and controls the display of information regarding the positional relationship of the person and / or the event in association with the vehicle. Therefore, it is possible to efficiently notify a plurality of vehicles.

[0060] In addition, when issuing an alert regarding the event, the display control unit 24 uses the entire vehicle, which is displayed schematically, for the alert, and when issuing an alert regarding the positional relationship of the person, it uses only a part of the vehicle, which is displayed schematically, for the alert. Therefore, notification of the event can be given priority.

[0061] The cameras 42 are disposed on the left and right sides of the vehicle near both ends in the longitudinal direction, and each camera captures an area near the door of the vehicle. Therefore, the camera 42 that can provide good image quality can be selected and used depending on the direction of travel, which side of the station platform, etc.

[0062] The present invention is not limited to the above-described embodiments, but includes various modifications. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to those including all of the described configurations. Furthermore, not only can the configurations be deleted, but also replacements and additions of configurations are possible. For example, in the above embodiment, four cameras 42 are installed in one vehicle, but the cameras 42 may be installed above the doors or the like. In the above embodiment, the train driver is used as an example of a monitor who checks the safety of the train, but the monitor may be a crew member who does not drive the train. Also, a monitor may be stationed at a station or a monitoring center without being on board the train. [Explanation of symbols]

[0063] 10: Train running support device, 11: Memory unit, 12: Control unit, 21: Recognition unit, 22: Person position determination unit, 23: Event detection unit, 24: Display control unit, 31: Train status information providing device, 32: Display unit, 41: Relay device, 42: Camera, 51, 52: Display area, 53: Vehicle icon, 60: Vehicle formation display, 61: Direction of travel display, 62: Vehicle display

Claims

1. a person position determination unit that determines a positional relationship between a person on the station platform and the train using an image captured by a camera that has an image capture range that includes the vicinity of the side of the train; An event detection unit that detects multiple types of events that may be subject to notification to a monitor using the image captured by the camera; an identification unit that identifies a state of the train with respect to the station platform; a display control unit that displays and outputs information regarding the positional relationship of the person and / or the event on a predetermined display device to notify the observer; Equipped with the identification unit identifies, as the state, four phases: an approach phase during which the train enters the station platform and stops; a boarding / alighting phase during which the train stops and opens its doors; a departure preparation phase during which the train closes its doors and departs; and an exit phase during which the train departs and leaves the station platform; The display control unit, depending on which phase the result of the identification is, Selecting a type of event to be displayed and selecting information on the positional relationship to be displayed, A train operation support device comprising: a display mode for selecting a display output target;

2. A train running support device as claimed in claim 1, The event detection unit detects a fall of the person from the station platform as a first event, and detects an event having a lower priority for notification than the fall as a second event, The display control unit is In the approach phase, the departure preparation phase, or the exit phase, a detection result of the first event and the second event is notified; A train running support device characterized in that, during the boarding / alighting phase, notification of the detection result of the second event is suppressed and notification of the detection result of the first event is notified.

3. A train running support device as claimed in claim 1, the person position determination unit determines a danger area within a predetermined range from the train and sets a caution area outside the danger area, and determines the presence or absence of a person in the danger area and the caution area; The display control unit is In the entry phase or the exit phase, a notification is made that a person is present in the dangerous area; In the departure preparation phase or the boarding / alighting phase, a notification is made that a person is present in the danger area and a notification is made that a person is present in the caution area; A train running support device, characterized in that a display mode for the notification in the departure preparation phase is more conspicuous than display modes in other phases.

4. The train operation support device according to claim 1, The camera is provided for each vehicle constituting the train, The person position determination unit determines a position of a person for each of the vehicles, The event detection unit detects an event for each vehicle, The display control unit is characterized by displaying a schematic representation of the train's vehicle configuration and controlling the display of information regarding the person's positional relationship and / or the event in association with the vehicles.

5. A train running support device as claimed in claim 4, The train running support device is characterized in that when making an alert regarding the event, the display control unit uses the entire vehicle, which is displayed diagrammatically, for the alert, and when making an alert regarding the person's relative positions, the display control unit uses only a part of the vehicle, which is displayed diagrammatically, for the alert.

6. The train operation support device according to claim 1, The train running support device described in the above is characterized in that the cameras are arranged on the left and right sides of the vehicles that make up the train, near both ends of the longitudinal direction of the vehicles, and each camera includes the area near the doors of the vehicles within its imaging range.

7. The train operation support device installed on the train a person position determination step of determining a positional relationship between a person on a station platform and the train using an image captured by a camera including an image capture range of the vicinity of a side of the train; an event detection step of detecting a plurality of types of events that may be subject to notification to a monitor using the image capturing result by the camera; an identification step of identifying a state of the train with respect to the station platform; a display control step of displaying and outputting information regarding the positional relationship of the person and / or the event on a predetermined display device to notify the observer; Including, The identification step identifies four phases as the state, which are an approach phase in which the train enters the station platform and stops, a boarding / alighting phase in which the train stops and opens its doors, a departure preparation phase in which the train closes its doors and departs, and an exit phase in which the train departs and leaves the station platform, The display control step includes: Selecting a type of event to be displayed and selecting information on the positional relationship to be displayed, A train operation support method comprising the steps of: selecting a display mode of a target for the display output.

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