Control device, control method, and recording medium

Abstract

This control device comprises a detection unit and a control unit. The control device detects a specific event relating to the arrival and departure of a train. When the specific event is detected, the control unit switches the display content of electronic paper installed in a train station.

Description

Control Device, Control Method, and Recording Medium

[0001] This disclosure relates to a control device and the like.

[0002] There is a technology for posting various contents such as advertisements and guides. For example, advertisements are displayed on displays, electronic papers, and the like.

[0003] Japanese Patent Application Laid-Open No. 2021-12518

[0004] By the way, for example, it may take about 10 seconds to switch the display of an electronic paper. Also, the electronic paper may appear to have a disrupted display during the switching. For this reason, there is a desire not to have the user see the part where the display content of the electronic paper is being switched.

[0005] An example of the purpose of this disclosure is to provide a control device and the like that reduce the chance for a user to see the switching of the display of an electronic paper.

[0006] The control device in one aspect of this disclosure includes: detection means for detecting a specific event related to the arrival and departure of a train; and control means for switching the display content of an electronic paper installed at a station when the specific event is detected.

[0007] The control device in one aspect of this disclosure includes: detection means for detecting that the area where an electronic paper is located has changed in a facility having a plurality of areas; and control means for switching the display content of the electronic paper when it is detected that the area has changed.

[0008] The control method in one aspect of this disclosure is such that at least one computer detects a specific event related to the arrival and departure of a train and executes a process of switching the display content of an electronic paper installed at a station when the specific event is detected.

[0009] The control method in one aspect of this disclosure is such that at least one computer detects that the area where an electronic paper is located has changed in a facility having a plurality of areas and executes a process of switching the display content of the electronic paper when it is detected that the area has changed.

[0010] A program in one aspect of this disclosure causes at least one computer to perform a process that detects specific events relating to the arrival and departure of trains, and, when such specific events are detected, switches the display content of an electronic paper installed at the station.

[0011] A program in one aspect of this disclosure causes at least one computer to perform a process that detects when an area of ​​an electronic paper in a facility having multiple areas has changed, and when the change in area is detected, switches the display content of the electronic paper.

[0012] Each program may be stored on a non-temporary storage medium that is readable by at least one computer.

[0013] According to this disclosure, it is possible to reduce the number of times users have to see the display of electronic paper being switched.

[0014] This is an explanatory diagram showing an example of a control system including a control device. This is a block diagram showing an example of a control device configuration. This is an explanatory diagram showing an example where an imaging device and electronic paper are installed on the wall across the tracks from the station platform. This is an explanatory diagram showing an example where a train arrives at the station. This is an explanatory diagram showing an example where electronic paper is installed on the movable part of a platform door. This is an explanatory diagram showing an example where the movable part of a platform door is open. This is a flowchart showing an example of one operation of the control device. This is an explanatory diagram showing an example where electronic paper is in sales area A. This is an explanatory diagram showing an example where a store clerk is carrying electronic paper to sales area B. This is an explanatory diagram showing an example where electronic paper is in sales area B. This is an explanatory diagram showing an example where the content of display order 1 is displayed on the electronic paper. This is an explanatory diagram showing an example where the content of display order 2 is switched to. This is an explanatory diagram showing an example where the content of display order 2 is displayed on the electronic paper. This is a flowchart showing an example of one operation of the control device. This is an explanatory diagram showing an example of the display on electronic paper when the signal light color is red. This is an explanatory diagram showing an example of the display on electronic paper when the signal light color is blue. This is an explanatory diagram illustrating an example of how the user's completion of viewing an e-paper document is detected. This is an explanatory diagram illustrating an example of a computer hardware configuration.

[0015] Embodiments of the control device, control method, program, and non-temporary recording medium for recording the program according to this disclosure will be described in detail below with reference to the drawings. These embodiments are not intended to limit the disclosed technology.

[0016] Embodiments will be described in detail with reference to the drawings.

[0017] Figure 1 is an explanatory diagram showing an example of a control system including a control device. For example, control system 1 includes a control device 10 and an electronic paper 11. The control device 10 controls the display content of the electronic paper 11. For example, since the electronic paper 11 can switch between displays, it may be used to switch between and display multiple advertisements, etc. Note that the display content is not limited to advertisements, but may also be informational materials, etc., and is not particularly limited.

[0018] As mentioned above, switching the display of the e-paper 11 may take about 10 seconds. Also, as mentioned above, the display of the e-paper 11 may appear distorted during the switching process. Therefore, when the display of the e-paper 11 is switching, it may appear as if the e-paper 11 is malfunctioning. As mentioned above, there is a desire to prevent users from seeing the display content of the e-paper 11 being switched. Therefore, the control device 10 can reduce the opportunities for users to see the display switching of the e-paper 11 by switching the display content of the e-paper 11 at a time when no one is looking at the e-paper 11. In other words, it is possible to suppress the possibility of people seeing the distortion during the display switching of the e-paper.

[0019] The control device 10 may be implemented by multiple devices. For example, the control device 10 may be implemented by a device such as a microcontroller that controls the display content of a conventional electronic paper 11 and a device that controls the timing for switching the display content as described in the embodiment.

[0020] The electronic paper 11 may be installed in a facility or on a road, etc. The facility is not particularly limited to stations, shops, entertainment facilities, etc.

[0021] The electronic paper 11 and the control device 10 may be connected via a communication network. The type and number of communication networks are not particularly limited. For example, the control device 10 and the electronic paper 11 may communicate using SPI (Serial Peripheral Interface).

[0022] Furthermore, in Figure 1, the control device 10 may also be connected to devices such as sensors and beacon devices via a communication network.

[0023] Figure 2 is a block diagram showing one example configuration of the control device 10. The control device 10 comprises a detection unit 103 and a control unit 105. The detection unit 103 has as its basic function the function of detecting the occurrence of a specific event. The control unit 105 has as its basic function the function of switching the display content of the electronic paper 11 when the occurrence of a specific event is detected.

[0024] Here, we will explain in detail how the display of each functional unit can be switched to prevent it from being seen by people when the electronic paper 11 is installed in various locations.

[0025] <Example of display switching at a station> First, we will explain an example of display switching when electronic paper 11 is installed at a station.

[0026] For example, the electronic paper 11 is installed at a station. More specifically, the electronic paper 11 may be installed on the station platform, or on the wall surrounding the station platform. For example, the electronic paper 11 may be installed in a location where at least part of the display is obscured by the train when it arrives.

[0027] The detection unit 103 detects specific events related to the arrival and departure of trains. These specific events related to the arrival and departure of trains are not particularly limited, as long as they are events that cause passengers to stop looking at or be unable to see the electronic paper 11. Specifically, these specific events may include, for example, at least one of the following: a train arriving at a station, a train approaching a station, passengers boarding or alighting from a train that has arrived at a station, a train being delayed, or the movable part of a platform door installed on the station platform opening.

[0028] The detection unit 103 may detect a specific event using at least one of a proximity sensor, an imaging device, a light sensor, or a sound sensor. The sensors listed here are just examples and are not particularly limited as long as they can detect a specific event.

[0029] First, let's explain an example in which the detection unit 103 detects a specific event using a proximity sensor. For example, a proximity sensor can detect whether a train is nearby, and depending on the installation location of the proximity sensor, it can detect the arrival of a train at a station, the approach of a train to a station, and train delays. For example, if the proximity sensor is installed in a position where it can detect the presence of a train on the tracks within the station platform, the detection unit 103 can detect the arrival of a train at the station. If the proximity sensor is installed in a position where it can detect the presence of a train on the tracks before it enters the station platform, the detection unit 103 can detect the approach of a train to the station using the proximity sensor. In addition, the detection unit 103 can detect train delays to a station by detecting, using the proximity sensor, that there is no train arrival at the station or no train approaching the station at the time listed in the timetable.

[0030] Next, an example of the detection unit 103 detecting a specific event using an optical sensor will be described. The optical sensor is not particularly limited, for example, LiDAR (Light Detection and Ranging). For example, the optical sensor can detect whether a train is nearby, and depending on the installation location of the optical sensor, it can detect the arrival of a train at a station, the approach of a train to a station, and train delays. For example, by installing the optical sensor in a position where it can detect the presence of a train on the tracks within the station platform, the detection unit 103 can detect the arrival of a train at the station. If the optical sensor is installed in a position where it can detect the presence of a train on the tracks before it enters the station platform, the detection unit 103 can detect the approach of a train to the station using the optical sensor. Furthermore, the detection unit 103 can detect train delays to a station by detecting, using the optical sensor, that there is no train arrival or approach to the station at the time listed in the timetable.

[0031] Next, an example of the detection unit 103 detecting a specific event using the imaging device will be described. The imaging device may be installed in a position where it can image the station platform. Alternatively, for example, the imaging device may be installed near the electronic paper 11. The imaging device may also be installed in a position where it can image a person looking at the electronic paper 11. For example, if the electronic paper 11 is installed on a wall, the imaging device can be installed on the wall where the electronic paper 11 is installed, and can image a person looking at the electronic paper 11 from the wall side. This specific example will be explained in detail using Figures 3A and 3B. For example, if the imaging device is installed in a position where it can image a train on the tracks within the station platform, the detection unit 103 can detect the arrival of a train at the station from the image captured by the imaging device. If the imaging device is installed in a position where it can image a train on the tracks before it enters the station platform, the detection unit 103 can detect the approach of a train at the station from the image captured by the imaging device. Furthermore, if the image captured by the imaging device detects that there is no train arrival at the station or no train approaching the station at the time indicated in the timetable, the detection unit 103 can detect a delay in the train to the station using the imaging device.

[0032] Next, an example will be described in which the detection unit 103 detects a specific event using a sound sensor. For example, the sound sensor may be installed in a position where it can detect sounds on a station platform. For example, the sound sensor may detect the sound of a train or announcements on the platform.

[0033] First, let's explain an example of a sound sensor detecting the sound of a train. For example, if a sound sensor is installed on the tracks within a station platform in a position where it can detect the sound of a train, the detection unit 103 can detect the arrival of a train by detecting the sound of a train with the sound sensor. The sound of a train may also be the vibration of a train. By installing the sound sensor near the electronic paper 11, the detection unit 103 can detect the sound of a train and thus detect that a train is near the electronic paper 11. The sound sensor may be installed near the tracks so that the arrival of a train can be detected. Alternatively, the sound sensor may be installed in a position where it can detect the presence of a train on the tracks before it enters the station platform. The detection unit 103 can detect the approach of a train to the station using the sound sensor. Furthermore, if the sound sensor detects that there is no train arrival at the station or no train approaching the station at the time listed in the timetable, the detection unit 103 can detect a delay in the train to the station.

[0034] Next, an example of a sound sensor detecting announcements on a platform will be described. Instead of a sound sensor, a sound collector or the like may be used. The detection unit 103 can detect train arrivals, train approaching trains, and train delays by detecting announcements using the sound sensor and performing voice analysis.

[0035] When a specific event is detected, the control unit 105 switches the display content of the electronic paper 11 installed at the station. The method for switching the display content can be, for example, by transmitting new image data, etc., to the electronic paper 11, and existing technology can be used, so a detailed explanation will not be provided.

[0036] Here, for example, when the electronic paper 11 is installed on a wall, a specific example in which the imaging device is installed on the wall on which the electronic paper 11 is installed, and an image of a person viewing the electronic paper 11 from the wall side will be explained using Figures 3A and 3B.

[0037] Figure 3A is an explanatory diagram showing an example in which the imaging device 51 and the electronic paper 11 are installed on a wall across the tracks from the station platform. For example, on the platform of a subway station, advertisements are sometimes installed on the wall across the tracks from the platform. Therefore, the electronic paper 11 is installed on the wall opposite the station platform across the tracks. This makes the electronic paper 11 visible to users on the station platform. For example, in Figure 3A, the electronic paper 11 is installed on this wall and an advertisement is displayed on the electronic paper 11. The number of electronic paper 11 is not particularly limited. However, for example, when a train enters the tracks, the electronic paper 11 is hidden by the train and becomes invisible to users on the station platform. Also, for example, if the imaging device 51 is installed near the electronic paper 11 so as to be able to image the platform, then as shown in Figure 3A, when a train has not arrived, the imaging device 51 can image the users on the station platform and the station platform itself.

[0038] Figure 3B is an explanatory diagram illustrating an example of a train arriving at a station. When the train enters the tracks, the imaging device 51 begins to image the train. Also, for example, when a train arrives, the electronic paper 11 becomes hidden and invisible to users on the station platform. Therefore, the detection unit 103 can detect the arrival of the train using the image captured by the imaging device 51. Then, for example, when the arrival of the train is detected, the control unit 105 switches the display content of the electronic paper 11.

[0039] Next, an example of the electronic paper 11 being installed on the movable part of a platform door will be described. Figure 4A is an explanatory diagram showing an example in which the electronic paper 11 is installed on the movable part 611 of a platform door 61. When the movable part 611 of the platform door 61 is closed, in other words, when a train has not arrived, users on the platform can see the electronic paper 11. In the platform door 61 shown in Figure 4A, the movable part 611 opens from both sides, so electronic paper 11-1 and electronic paper 11-2 are installed. Note that the movable part 611 may open from one side. Also, the number of electronic paper 11 installed on each movable part 611 is not particularly limited.

[0040] For example, the detection unit 103 detects that the movable part 611 is open as a specific event. The method by which the detection unit 103 detects the open / closed state of the movable part 611 is not particularly limited. The detection unit 103 may detect the open / closed state of the movable part 611 of the platform door 61 by obtaining the open / closed state of the movable part 611 from a device that controls the platform door 61. Alternatively, the detection unit 103 may detect the open / closed state of the movable part 611 of the platform door 61 from an image captured by an imaging device capable of imaging the platform door 61.

[0041] Furthermore, the detection unit 103 may detect the open / closed state of the movable part 611 of the platform door 61 by detecting the sound of the movable part 611 opening and closing using a sound sensor. Similarly, a light sensor or proximity sensor may also be used. Also, as mentioned above, if the movable part 611 of the platform door 61 opens within a predetermined time after the arrival of a train is detected or within a predetermined time after the train approaches the station, the detection unit 103 may detect that the movable part 611 of the platform door 61 has opened. Alternatively, if it is detected that passengers are boarding or alighting, the detection unit 103 may detect that the movable part 611 of the platform door 61 is open. The predetermined time can be set as appropriate by station staff or the like.

[0042] FIG. 4B is an explanatory diagram showing an example in which the movable part 611 of the home door 61 is open. When the movable part 611 of the home door 61 is open, that is, when the train arrives and passengers are boarding and alighting, the control unit 105 switches the display content of the electronic paper 11 installed on the movable part 611 of the home door 61.

[0043] Also, the display content of the electronic paper 11 may be switched according to the arrival of the train based on the train timetable. However, the train may be delayed. Therefore, when a specific event is a train delay, when the control unit 105 switches the display content of the electronic paper 11 according to the arrival of the train based on the train timetable, if a train delay is detected, the timing of switching the display content of the electronic paper 11 according to the train delay may be changed.

[0044] Also, there may be a plurality of tracks at the station. When there are a plurality of tracks at the station, the detection unit 103 detects on which of the plurality of tracks the train has arrived. The detection unit 103 may use any of the sensors such as the proximity sensor, imaging device, optical sensor, and sound sensor described above to detect on which track the train has arrived. Then, the control unit 105 switches the display content of the electronic paper 11 according to the detected track. The electronic paper 11 may be installed at a position visible when a user who is going to board the train scheduled to arrive on the detected track is waiting for the train on the platform.

[0045] The detection unit 103 detects the announcement at the station by a sound sensor and predicts on which of the plurality of tracks the train will arrive based on the announcement. Then, the detection unit 103 detects by the sound sensor that the train has come to the predicted track. The control unit 105 switches the display content of the electronic paper 11 according to the detected track.

[0046] (Flowchart) FIG. 5 is a flowchart showing an example of an operation of the control device 10. For example, the detection unit 103 detects a specific event related to the arrival and departure of the train (step S101). Next, when the control unit 105 detects a specific event, it switches the display content (step S102).

[0047] <Example of switching display when the area where the electronic paper 11 is located changes> An example of the control device 10 switching the display content of the electronic paper 11 when it is detected that the area where the electronic paper 11 is located has changed in a facility with a plurality of areas will be described.

[0048] For example, a facility may be divided into a plurality of areas. For example, when the facility is a store, the area may be referred to as a sales floor. The area may be appropriately determined by the operator of the facility or the like.

[0049] For example, it is expected that a person such as a store clerk will carry the electronic paper 11 and move it. The detection unit 103 detects that the area where the electronic paper 11 is located has changed in a facility having a plurality of areas. Note that the change in the area where the electronic paper 11 is located may be referred to as a specific event. For example, the detection unit 103 uses at least one of an imaging device, a beacon device, an infrared communication device, an optical sensor, and a weight sensor installed in the facility to detect the area where the electronic paper 11 is located. That is, the detection unit 103 may perform positioning of the electronic paper 11 using at least one of an imaging device, a beacon device, an infrared communication device, an optical sensor, and a weight sensor installed in the facility. The number of imaging devices, the number of beacon devices, the number of infrared communication devices, the number of optical sensors, and the number of weight sensors are not particularly limited. As long as the area where the electronic paper 11 is located can be detected, other sensors may be used.

[0050] First, an example in which the detection unit 103 detects the area where the electronic paper 11 is located by an imaging device will be described. For example, the imaging device is installed so as to be able to track an object or a person in the facility. For example, the detection unit 103 may detect from the image captured by the imaging device the place where the electronic paper 11 is carried by a store clerk. Then, the detection unit 103 detects the area where the electronic paper 11 is located by detecting the position of the electronic paper 11 from the image captured by the imaging device.

[0051] Next, an example will be described in which the detection unit 103 detects an area where the electronic paper 11 is located using a beacon device. The beacon device may be a beacon receiver or a beacon transmitter. The electronic paper 11 may have a beacon receiver or a beacon transmitter attached to it, in conjunction with the beacon device for transmission or reception. That is, beacon communication takes place between the beacon device and a beacon-communicating device attached to the electronic paper 11. The beacon devices may be installed in separate areas, for example, or multiple beacon devices may be installed within each area. The detection unit 103 detects the area where the electronic paper 11 is located based on the strength of the radio waves between the beacon device and the beacon receiver or transmitter attached to the electronic paper 11.

[0052] Furthermore, the example in which the detection unit 103 detects the area where the electronic paper 11 is located using an infrared communication device is the same as the example in which the detection unit 103 detects the area where the electronic paper 11 is located using a beacon device, so a detailed explanation will be omitted.

[0053] Next, an example will be described in which the detection unit 103 detects an area containing electronic paper 11 using a weight sensor. For example, there may be cases where the location where electronic paper 11 is placed is determined for each area. The weight sensor detects the weight of the electronic paper 11 when it is placed in a location, for example, in each area where electronic paper 11 is installed. Therefore, the detection unit 103 can detect an area where electronic paper 11 is located. When the electronic paper 11 is removed from that location, the weight sensor detects that the weight of the electronic paper 11 has disappeared, so the detection unit 103 can detect that the electronic paper 11 has been moved from that location.

[0054] The detection unit 103 describes an example in which an optical sensor detects an area where an electronic paper 11 is located. The optical sensor may be a LiDAR, and is not particularly limited. Optical sensors may be installed in separate areas. Also, if the location where the electronic paper 11 will be placed is predetermined, the optical sensor may be installed in a position where it can detect the presence or absence of the electronic paper 11 at or near the location where the electronic paper 11 will be placed.

[0055] As described above, the detection unit 103 can use various methods to detect the area where the electronic paper 11 is located, and furthermore, to detect when the area where the electronic paper 11 is located has changed.

[0056] When the control unit 105 detects a change in area, it switches the display content of the electronic paper 11. As mentioned above, the method by which the control unit 105 switches the display content can be done using existing technology, so a detailed explanation is omitted. The control unit 105 switches to the display content corresponding to the destination area. Note that the display content for each area may be stored in advance in a database or the like. Then, the control unit 105 refers to the database and switches the electronic paper 11 to the display content corresponding to the destination area.

[0057] Here, using the example of a store as the facility, we will explain how the displayed content changes when the sales area where the electronic paper 11 is located changes.

[0058] Figure 6A is an explanatory diagram showing an example where the electronic paper 11 is located in sales area A. For example, in Figure 6A, the electronic paper 11 is placed in sales area A. Thus, the electronic paper 11 displays the message "Special sale starts at 15:00!" as content appropriate for sales area A. In addition, beacon devices 52-A to 52-C are installed in each area.

[0059] Figure 6B is an explanatory diagram illustrating an example where a store employee is carrying an e-paper 11 to sales area B. For example, the employee is carrying the e-paper 11 from sales area A to sales area B. The detection unit 103 uses a beacon device to detect that the sales area where the e-paper 11 is located has changed. The control unit 105 then switches the display content of the e-paper 11 to the display content appropriate for sales area B.

[0060] Figure 6C is an explanatory diagram showing an example where the electronic paper 11 is located in sales area B. For example, in Figure 6C, the electronic paper 11 is placed in sales area B. The electronic paper 11 displays the following message, appropriate for sales area B: "Today's recommended item is product xxx."

[0061] In the examples shown in Figures 6A to 6C, the control unit 105 can switch the display content of the electronic paper 11 while the electronic paper 11 is moving. In this way, the control device 10 can switch the display content of the electronic paper 11 at a time when customers or others are not looking at the electronic paper 11.

[0062] Furthermore, if there are three or more areas, the destination area may be one that is simply passed through, or one that is entered accidentally. Therefore, for example, the control unit 105 may switch the display content of the electronic paper 11 if the destination area is occupied for a predetermined time or longer. This predetermined time may be the time required to pass through the area, or it may be a time such as a few seconds that excludes cases where the area was entered accidentally.

[0063] For example, in facilities such as museums, art galleries, and amusement parks, when electronic paper 11 is used for guidance, it may be desirable to change the guidance depending on both the destination area and the source area. Therefore, the control unit 105 switches the display content according to the source area and the destination area. More specifically, for example, when electronic paper 11 moves from area X to area Z, and when electronic paper 11 moves from area Y to area Z, the destination area is the same area Z, but the display content may be different or the same. The display content according to the source area and the destination area can be stored in advance in a database or the like. When the detection unit 103 detects that the area where electronic paper 11 is located has changed, the control unit 105 refers to the database and switches the display content according to the source area and the destination area.

[0064] The control unit 105 may display multiple pieces of information on the electronic paper 11 in a predetermined display order. In such cases, when the control unit 105 detects that an area of ​​the electronic paper 11 has changed, it switches the display content of the electronic paper 11 in the display order based on the multiple pieces of information.

[0065] Figure 7A is an explanatory diagram illustrating an example where the content with display order number 1 is displayed on the electronic paper 11. It is sufficient that the display order and the display data are pre-associated and stored in the database. For example, the display data with display order number 1 is data P, and the display data with display order number 2 is data Q. The electronic paper 11 displays the content represented by data P, which has display order number 1.

[0066] Figure 7B is an explanatory diagram showing an example where the display order is switched to the second display content. Next, the detection unit 103 detects that the electronic paper 11 has moved from area X to area Y. Because the detection unit 103 has detected that the area in which the electronic paper 11 is located has changed, the control unit 105 switches the display content of the electronic paper 11 using data Q, which is the second data in the display order.

[0067] Figure 7C is an explanatory diagram showing an example where the content of the second item in the display order is displayed on the electronic paper 11. The electronic paper 11 displays the content represented by data Q, which is the second item in the display order.

[0068] Although this explanation was given using facilities other than train stations, the display switching examples described here may also be applied to train stations. That is, for example, a train station may be divided into multiple areas. Also, if the electronic paper 11 is installed on a road, the display switching examples described here may also be applied to roads.

[0069] (Flowchart) Figure 8 is a flowchart showing an example of the operation of the control device 10. For example, the detection unit 103 detects that the area where the electronic paper 11 is located has changed in a facility with multiple areas (step S201). Next, when the control unit 105 detects that a specific event has been detected, it switches the display content (step S202).

[0070] <Example of display switching when electronic paper 11 is installed near a traffic light on a road> For example, advertisements and information may be displayed at intersections and pedestrian crossings. For this reason, electronic paper 11 that displays advertisements and information may be installed near a traffic light.

[0071] Pedestrians and drivers are expected to look at advertisements and information when they are stopped, such as when waiting at a traffic light. However, it is expected that pedestrians and drivers will not look at the e-paper 11 if they are crossing the road or if the vehicle is in motion.

[0072] Figure 9A is an explanatory diagram showing an example of what is displayed on the electronic paper 11 when the traffic light 71 is lit red. The electronic paper 11 displays an advertisement that reads, "New product xxx now on sale!" In Figure 9A, the traffic light 71 installed at the crosswalk is lit red, and pedestrians are waiting for the signal to change. Therefore, pedestrians may be looking at the electronic paper.

[0073] Figure 9B is an explanatory diagram showing an example of the display on the electronic paper 11 when the traffic light 71 is illuminated in blue. The detection unit 103 detects that the traffic light 71 has turned blue as a specific event. When the traffic light 71 is illuminated in blue, it indicates that pedestrians can cross and vehicles can travel. When the detection unit 103 detects that the traffic light 71 has turned blue, the control unit 105 switches the display content of the electronic paper 11. This allows the control device 10 to switch the display content at a time when pedestrians waiting for the traffic light 71 are not looking at the electronic paper 11.

[0074] <Other examples of switching the display content of e-paper 11> Here, we will explain an example in which the display content of e-paper 11 can be switched while no one is looking at it, without any particular limitations on the location where e-paper 11 is installed.

[0075] The detection unit 103 uses an imaging device capable of capturing images of a person looking at the electronic paper 11 to detect, as a specific event, that there is no gaze directed at the electronic paper 11. When the control unit 105 detects that there is no gaze directed at the electronic paper 11, it switches the display content of the electronic paper 11.

[0076] Furthermore, it is expected that once a person has finished viewing the contents of the electronic paper 11, they will not look at it any further. Therefore, the detection unit 103 detects, as a specific event, that the person has finished viewing the contents of the electronic paper 11 based on their gaze towards the electronic paper 11 as captured by the imaging device. When the control unit 105 detects that the person has finished viewing the contents of the electronic paper 11, it switches the contents of the electronic paper 11.

[0077] Figure 10 is an explanatory diagram illustrating an example of how it is detected that the user has finished viewing the electronic paper 11. For example, if Japanese text is displayed horizontally on the electronic paper 11, the detection unit 103 may detect that the user has finished viewing the content of the electronic paper 11 if their gaze is directed to the lower right of the electronic paper 11. For example, if Japanese text is displayed vertically on the electronic paper 11, the detection unit 103 may detect that the user has finished viewing the content of the electronic paper 11 if their gaze is directed to the lower left of the electronic paper 11. In this way, the detection unit 103 may detect whether the user has finished viewing the content of the electronic paper 11 based on the position of their gaze, corresponding to the direction in which the text is displayed.

[0078] Specifically, as a method for the detection unit 103 to detect a person's gaze, the detection unit 103 may analyze the movement of the gaze in more detail using an image captured by an imaging device 53 capable of capturing the gaze of a person looking at the electronic paper 11. The detection unit 103 may also detect whether the person has finished viewing the content displayed on the electronic paper 11 based on the movement of the gaze corresponding to the direction of text display. When the control unit 105 detects that the person has finished viewing the content of the electronic paper 11, it switches the content displayed on the electronic paper 11.

[0079] Furthermore, the detection unit 103 may detect the absence of a person around the electronic paper 11 as a specific event. As a specific detection method, for example, a weight sensor may be installed on the floor around the electronic paper 11. If the weight sensor also detects the weight of a person, it is possible to determine that a person is present around the electronic paper 11. Therefore, the detection unit 103 uses the weight sensor to detect that there is no person around the electronic paper 11. Then, when the control unit 105 detects that there is no person around the electronic paper 11, it switches the display content of the electronic paper 11. For example, if the electronic paper 11 is installed on a road or in a facility, this process may be used when the display content needs to be rewritten while no one is looking at it.

[0080] Furthermore, the detection unit 103 is not limited to a weight sensor as a method for determining whether there is a person around the electronic paper 11; other sensors such as proximity sensors or light sensors capable of detecting people may also be used.

[0081] Then, when the control unit 105 detects that there are no people around the electronic paper 11, it switches the display content of the electronic paper 11. In this way, the control device 10 can switch the display content of the electronic paper 11 when there are no people around the electronic paper 11, in other words, when no one is looking at the electronic paper.

[0082] This concludes the description of the embodiments. Furthermore, the embodiments are not limited to the examples described above and can be modified in various ways. For example, the embodiments may be used in a modified form. Modifications are listed below.

[0083] <Variation> When the electronic paper 11 is being moved, it is expected that the person is not looking at the electronic paper 11. Therefore, for example, when the control device 10 detects the start of the movement of the electronic paper 11, it may switch the display content of the electronic paper 11.

[0084] The detection unit 103 detects the start of movement of the electronic paper 11. For example, the detection unit 103 may detect the start of movement of the electronic paper 11 in a facility from an image captured by an imaging device installed in the facility. Alternatively, the detection unit 103 may detect the start of movement of the electronic paper 11 using a proximity sensor or LiDAR. Or, for example, the detection unit 103 may detect the start of movement of the electronic paper 11 using an acceleration sensor attached to the electronic paper 11. When the start of movement of the electronic paper 11 is detected, the control unit 105 switches the display content of the electronic paper 11.

[0085] For example, when the control unit 105 detects movement of the electronic paper 11, it rewrites the display content of the electronic paper 11. Specifically, for example, when the control unit 105 detects movement of the electronic paper 11, it may switch the display content of the electronic paper 11 to the display content corresponding to the movement order, similar to the example where the display content according to the display order is rewritten.

[0086] Furthermore, the detection unit 103 may detect the direction of movement of the electronic paper 11. Specifically, for example, the detection unit 103 may detect the direction of movement of the electronic paper 11 from an image captured by an imaging device installed in a facility or the like. Alternatively, for example, the detection unit 103 may detect the direction of movement of the electronic paper 11 using an acceleration sensor attached to the electronic paper 11. The control unit 105 may then switch the display content according to the direction of movement. The method of representing the direction of movement is not particularly limited.

[0087] This concludes the explanation of the modified examples. The modified examples and embodiments may be combined as appropriate.

[0088] Furthermore, the configuration of the control device 10 is not particularly limited. For example, the functional units of the control device 10 may be implemented by a single device. Alternatively, for example, each functional unit or database of the control device 10 may be implemented by different devices and configured as a system. For example, the functional units of the control device 10 may be made up of multiple devices. For example, a system may be realized that includes a database server containing each database and devices having each functional unit. A system may be realized that includes a device equipped with some of the functional units of the control device 10 and another device equipped with other parts of the functional units of the control device 10. The number of devices is not particularly limited.

[0089] Furthermore, the various databases are merely examples, and they may contain other information or omit some of it. Also, the various databases may be divided into multiple databases.

[0090] (Example of computer hardware configuration) Next, we will describe an example of a hardware configuration when each device, such as the control device 10, is implemented using a computer.

[0091] Figure 11 is an explanatory diagram showing an example of a computer hardware configuration. For example, some or all of the devices, such as the control device 10, can be implemented using any combination of computer 80 and program as shown in Figure 11.

[0092] Computer 80 includes, for example, a processor 801, a ROM (Read Only Memory) 802, a RAM (Random Access Memory) 803, and a storage device 804. Computer 80 also includes a communication interface 805 and an input / output interface 806. Each component is connected, for example, via a bus 807. The number of components is not particularly limited, and each component may be one or more.

[0093] The processor 801 controls the entire computer 80. The processor 801 can be, for example, a CPU (Central Processing Unit), a DSP (Digital Signal Processor), a GPU (Graphics Processing Unit), a PPU (Physics Processing Unit), a TPU (Tensor Processing Unit), a quantum processor, or a combination thereof, and is not particularly limited.

[0094] The computer 80 also includes a ROM 802, a RAM 803, and a storage device 804. The storage device 804 can be, for example, a semiconductor memory such as flash memory, an HDD (Hard Disk Drive), or an SSD (Solid State Drive). For example, the storage device 804 stores the OS (Operating System) program, application programs, and programs according to each embodiment. Alternatively, the ROM 802 stores application programs and programs according to the embodiment. The RAM 803 is used as a work area for the processor 801.

[0095] The processor 801 also loads programs stored in the storage device 804, ROM 802, etc. Then, the processor 801 executes each process coded in the program. The processor 801 may also download various programs via the communication network NT. Furthermore, the processor 801 functions as part or all of the computer 80. The processor 801 may also execute processes or instructions in the illustrated flowchart based on the program.

[0096] The communication interface 805 is connected to a communication network NT, such as a LAN (Local Area Network) or WAN (Wide Area Network), via a wireless or wired communication line. The communication network NT may be composed of multiple communication networks NT. This allows the computer 80 to connect to external devices and external computers 80 via the communication network NT. The communication interface 805 manages the interface between the communication network NT and the internal workings of the computer 80. Furthermore, the communication interface 805 controls the input and output of data from external devices and external computers 80.

[0097] Furthermore, the input / output interface 806 is connected to at least one of the input device, output device, and input / output device. The connection method may be wireless or wired. Examples of input devices include keyboards, mice, and microphones. Examples of output devices include display devices, lighting devices (such as lamps), and audio output devices. Examples of input / output devices include touch panel displays. The input device, output device, and input / output device may be built into the computer 80 or attached to the computer 80 externally. That is, for example, the computer 80 may have input devices such as keyboards and mice. The computer 80 may have output devices such as displays. The computer 80 may also have input devices, output devices, and input / output devices.

[0098] The hardware configuration of computer 80 is an example. Computer 80 may have some of the components shown in Figure 11. Computer 80 may have components other than those shown in Figure 11. For example, computer 80 may have a drive device. The processor 801 may read programs and data stored on a recording medium mounted on the drive device or the like into RAM 803. Examples of non-temporary tangible recording media include optical discs, flexible discs, magneto-optical discs, and USB (Universal Serial Bus) memory.

[0099] Furthermore, the computer 80 may have various sensors (not shown). The type of sensor is not particularly limited. Also, the computer 80 may be equipped with an imaging device capable of capturing images or videos.

[0100] This concludes the description of the hardware configuration of each device. Furthermore, there are various variations in how each device can be implemented. For example, each device may be implemented by any combination of different computers and programs for each component. Alternatively, the multiple components of each device may be implemented by any combination of a single computer and program.

[0101] Furthermore, some or all of the components of each device may be implemented using application-specific circuits. Alternatively, some or all of the components of each device may be implemented using general-purpose circuits such as FPGAs (Field Programmable Gate Arrays). Furthermore, some or all of the components of each device may be implemented using a combination of application-specific circuits and general-purpose circuits. These circuits may also be a single integrated circuit, or they may be divided into multiple integrated circuits. These multiple integrated circuits may be connected via a bus or the like.

[0102] Furthermore, if some or all of the components of each device are implemented by multiple computers or circuits, these computers or circuits may be centrally located or distributed.

[0103] The control methods described in each embodiment may be implemented by a computer such as the control device 10.

[0104] Each program described in each embodiment is recorded on a computer-readable recording medium such as an HDD, SSD, flexible disk, optical disk, magneto-optical disk, or USB memory. Each program is then executed by being read from the recording medium by a computer. Furthermore, each program may be distributed via a communication network NT.

[0105] Each component of the control device 10 described above may be implemented using dedicated hardware, such as a computer. Alternatively, each component may be implemented using software. Alternatively, each component may be implemented using a combination of hardware and software.

[0106] Although the present disclosure has been described above with reference to embodiments, the present disclosure is not limited to the embodiments described above. The structure and details of the present disclosure may include embodiments that apply various modifications that can be grasped by those skilled in the art within the scope of the present disclosure. The present disclosure may include embodiments that combine or substitute the matters described herein as appropriate. For example, matters described using a particular embodiment may be applied to other embodiments to the extent that they do not cause a contradiction. For example, although several operations are described sequentially in the form of a flowchart, the order in which they are described does not limit the order in which the operations are performed. Therefore, when implementing an embodiment, the order of the operations can be changed to the extent that it does not impair the content.

[0107] Some or all of the above embodiments may also be described as follows. However, some or all of the above embodiments are not limited to the following.

[0108] (Note 1) A control device comprising: detection means for detecting specific events related to the arrival and departure of trains; and control means for switching the display content of an electronic paper installed at a station when the specific event is detected.

[0109] (Note 2) The control device according to Note 1, wherein the specific event is at least one of the arrival of the train, the approach of the train to the station, and the boarding or alighting of passengers from the train.

[0110] (Note 3) The control device according to Note 2, wherein the detection means detects the arrival of the train using at least one of a proximity sensor, an imaging device, and a sound sensor.

[0111] (Note 4) The electronic paper is installed on the wall across the tracks from the station platform, and is a control device as described in any of Notes 1 to 3.

[0112] (Note 5) The control device according to Note 1, wherein the electronic paper is installed on a platform door installed on the platform of the station, and the specific event is the opening of the movable part of the platform door.

[0113] (Note 6) The electronic paper is the control device described in Note 5, which is installed in the movable part.

[0114] (Note 7) The control device according to Note 1, wherein the specific event is a delay of the train, and when the control means switches the display content of the electronic paper according to the arrival of the train based on the train's timetable, if a delay of the train is detected, the timing of switching the display content of the electronic paper according to the delay of the train is changed.

[0115] (Note 8) The control device according to any one of Notes 1 to 7, wherein the detection means detects which of the multiple tracks the station has the event relating to the train, and the control means switches to display content corresponding to the detected track.

[0116] (Note 9) The control device according to any one of Notes 1 to 8, wherein the detection means detects station announcements using a sound sensor installed to detect station announcements, predicts which of the multiple tracks the station will arrive at based on the announcement, and detects that the train has arrived at the predicted track using the sound sensor.

[0117] (Note 10) A control device comprising: detection means for detecting when an electronic paper is in a facility with multiple areas, and control means for switching the display content of the electronic paper when the change in area is detected.

[0118] (Note 11) The control device according to Note 10, wherein the control means switches the display content of the electronic paper when the electronic paper is in the destination area for a predetermined time or longer.

[0119] (Note 12) The control device according to Note 10 or 11, wherein the detection means detects an area where the electronic paper is located using at least one of an imaging device, a beacon device, an infrared communication device, an optical sensor, or a weight sensor installed in the facility.

[0120] (Note 13) The control means is a control device according to any one of Notes 10 to 12, which switches the display content according to the area to which it is moving.

[0121] (Note 14) The control means is a control device according to any one of Notes 10 to 13, which switches the display content according to the area from which the movement originates and the area to which the movement destination occurs.

[0122] (Note 15) The control device according to any one of Notes 10 to 14, wherein when the control means displays a plurality of display information on the electronic paper in a predetermined display order, when it is detected that an area of ​​the electronic paper has changed, the control means switches the display content of the electronic paper in the predetermined display order based on the plurality of display information.

[0123] (Note 16) The control device according to any one of Notes 1 to 15, wherein the detection means detects that the person is not looking at the electronic paper using an imaging device capable of capturing images of the person looking at the electronic paper, and the control means switches the display content of the electronic paper when it is detected that the person is not looking at the electronic paper.

[0124] (Note 17) The control device according to any one of Notes 1 to 16, wherein the detection means detects that the person has finished viewing the electronic paper by using an imaging device capable of capturing images of the person viewing the electronic paper, based on the person's line of sight toward the electronic paper, and the control means switches the content of the electronic paper when it is detected that the person has finished viewing the content of the electronic paper.

[0125] (Note 18) The control device according to any one of Notes 1 to 17, wherein the detection means detects that there are no people around the electronic paper using a weight sensor installed on the floor around the electronic paper, and the control means switches the display content of the electronic paper when it is detected that there are no people around the electronic paper.

[0126] (Note 19) A control method comprising: at least one computer detecting specific events related to the arrival and departure of trains; and, when such specific events are detected, executing a process to switch the display content of an electronic paper installed at the station.

[0127] (Note 20) A control method in which at least one computer detects that an electronic paper is in a different area in a facility having multiple areas, and when the change in area is detected, the computer executes a process to switch the display content of the electronic paper.

[0128] (Note 21) A non-temporary recording medium readable by at least one computer, which records a program that detects specific events relating to the arrival and departure of trains, and, when such specific events are detected, causes the computer to execute a process that switches the display content of an electronic paper installed at the station.

[0129] (Note 22) A non-temporary recording medium readable by at least one computer, which records a program that causes a computer to execute a process to detect when an area of ​​an electronic paper in a facility having multiple areas changes, and to switch the display content of the electronic paper when the change in area is detected.

[0130] (Note 23) A program that causes at least one computer to detect specific events related to the arrival and departure of trains, and, when such specific events are detected, to execute a process that switches the display content of an electronic paper installed at the station.

[0131] (Note 24) A program that causes at least one computer to detect when an area of ​​an electronic paper in a facility having multiple areas changes, and when the change in area is detected, to execute a process to switch the display content of the electronic paper.

[0132] Furthermore, some or all of the configurations described in Appendices 2 to 9, 16, 17, and 18, which are dependent on Appendice 1 above, may also be dependent on Appendices 19, 21, and 23 in the same way as Appendices 2 to 9, 16, 17, and 18. Some or all of the configurations described in Appendices 11 to 18, which are dependent on Appendice 10 above, may also be dependent on Appendices 20, 22, and 24 in the same way as Appendices 11 to 18. Moreover, not limited to Appendices 1, 10, and 19 to 24, some or all of the configurations described as appendices may also be dependent on various hardware, software, various recording means for recording software, or systems, without departing from the embodiments described above.

[0133] 1 Control System 10 Control Devices 11, 11-1, 11-2 Electronic Paper 51 Imaging Device 52-A Beacon Device 52-B Beacon Device 52-C Beacon Device 53 Imaging Device 61 Platform Door 71 Traffic Signal 80 Computer 103 Detection Unit 105 Control Unit 611 Movable Part 801 Processor 802 ROM 803 RAM 804 Storage Device 805 Communication Interface 806 Input / Output Interface 807 Bus NT Communication Network

Claims

1. A control device comprising: detection means for detecting specific events related to the arrival and departure of trains; and control means for switching the display content of an electronic paper installed at a station when the specific event is detected.

2. The control device according to claim 1, wherein the specific event is at least one of the arrival of the train, the approach of the train to the station, and the boarding or alighting of passengers on the train.

3. The control device according to claim 2, wherein the detection means detects the arrival of the train using at least one of a proximity sensor, an imaging device, and a sound sensor.

4. The control device according to any one of claims 1 to 3, wherein the electronic paper is installed on a wall across the tracks from the station platform.

5. The control device according to claim 1, wherein the electronic paper is installed on a platform door installed on the platform of the station, and the specific event is the opening of the movable part of the platform door.

6. The control device according to claim 5, wherein the electronic paper is installed in the movable part.

7. The control device according to claim 1, wherein the specific event is a delay of the train, and when the control means switches the display content of the electronic paper according to the arrival of the train based on the train's timetable, if a delay of the train is detected, the timing of switching the display content of the electronic paper according to the delay of the train is changed.

8. The control device according to any one of claims 1 to 7, wherein the detection means detects which of the multiple tracks the station has the event relating to the train, and the control means switches to display content corresponding to the detected track.

9. The control device according to any one of claims 1 to 8, wherein the detection means detects station announcements using a sound sensor installed to detect station announcements, predicts which of the multiple tracks the station will arrive at based on the announcement, and detects that the train has arrived at the predicted track using the sound sensor.

10. A control device comprising: detection means for detecting when an electronic paper is in a facility with multiple areas; and control means for switching the display content of the electronic paper when the change in area is detected.

11. The control device according to claim 10, wherein the control means switches the display content of the electronic paper when the electronic paper is in the destination area for a predetermined time or longer.

12. The control device according to claim 10 or 11, wherein the detection means detects an area where the electronic paper is located using at least one of an imaging device, a beacon device, an infrared communication device, an optical sensor, or a weight sensor installed in the facility.

13. The control device according to any one of claims 10 to 12, wherein the control means switches the display content according to the area to which the user is moving.

14. The control device according to any one of claims 10 to 13, wherein the control means switches the display content according to the area from which movement originates and the area to which movement destinations.

15. The control device according to any one of claims 10 to 14, wherein when the control means displays a plurality of display information on the electronic paper in a predetermined display order, if it detects that an area of ​​the electronic paper has changed, it switches the display content of the electronic paper in the predetermined display order based on the plurality of display information.

16. A control method comprising at least one computer detecting specific events related to the arrival and departure of trains, and, upon detection of such specific events, executing a process to switch the display content of an electronic paper installed at a station.

17. A control method in which at least one computer detects that an electronic paper is in a different area in a facility having multiple areas, and when the change in area is detected, the computer executes a process to switch the display content of the electronic paper.

18. A non-temporary recording medium readable by at least one computer, which records a program that causes the computer to perform a process that detects specific events relating to the arrival and departure of trains, and, when such specific events are detected, switches the display content of an electronic paper installed at the station.

19. A non-temporary recording medium readable by at least one computer, which records a program that causes a computer to execute a process to detect when an area of ​​an electronic paper in a facility having multiple areas changes, and to switch the display content of the electronic paper when the change in area is detected.

Images