JP2011075848A - Information display system - Google Patents

Abstract

Provided is an information display system that allows passengers of vehicles such as subways to visually know the outside of a train while riding on the train.
An information display system (10) includes a storage unit (12) for storing an image seen outside the vehicle (100) in an area where the vehicle (100) travels as image data, a display unit (14) for displaying the image, and a display unit from the storage unit (12). The control unit 16 controls the transmission of the image data to 14 and displays an image corresponding to the current position of the vehicle 100 on the display unit 14, and is mounted on the vehicle 100.
[Selection] Figure 2

Description

  The present invention relates to an information display system.

  A window such as a general train is provided with a window. By looking at the scenery outside the window, the passenger can roughly check the current position of the train, and can check the target building and landmark to go.

  Recently, some vehicles have a display for displaying information. News, advertisements, and the like are displayed on the display (see Patent Document 1).

JP 2004-355155 A

  However, as described above, passengers can check the state outside the vehicle only in vehicles running outside. In vehicles such as trains that run underground or in tunnels, you can only see the inner wall of the dark tunnel from the built-in window, and you cannot see the exterior of the tunnel or the buildings. Therefore, the passenger cannot confirm which area is currently running.

  Moreover, although the route map and the destination are displayed on the display in the vehicle, information that can confirm the current position where the vehicle is running is not displayed.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an information display system that allows passengers of vehicles such as subways to visually know the outside of a train while riding on the train. .

  The information display system is mounted on a vehicle and includes a storage unit, a display unit, and a control unit. The storage unit stores, as image data, an image that is seen outside the vehicle in an area where the vehicle travels. The display unit displays the image stored in the storage unit. The control unit controls transmission of image data from the storage unit to the display unit, and causes the display unit to display an image corresponding to (synchronized with) the current position of the vehicle.

  Since an image (scenery) corresponding to the current position of the vehicle can be displayed on the display unit, the current position is informed to the passengers, giving a sense of security.

It is a figure for demonstrating the concept of this embodiment. It is a figure which shows schematic structure of an information display system. It is a conceptual diagram which shows the data structure memorize | stored in a memory | storage part. It is a figure which shows an example of the advertisement synthesize | combined on a screen. It is a figure which shows the display part installed in the upper part of a door. It is a figure which shows the image each displayed on a right-and-left door. It is a figure which shows the image of a different background. It is a flowchart which shows the flow of operation | movement of the information display system at the time of operation mode. It is a figure which shows an example of the image displayed on a display part immediately before a vehicle arrives at a station. It is a figure which shows an example of the image displayed on a display part when a vehicle arrives at a station. It is a figure which shows an information display system and a server. It is a flowchart which shows the flow of operation | movement of the information display system at the time of update mode.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation, and may be different from the actual ratios.

  In the information display system of the present embodiment, information on the outside where the vehicle is running (ground, outside the tunnel) is displayed on a display unit installed in the passenger vehicle to inform the passenger of the external situation.

  FIG. 1 is a diagram for explaining the concept of the present embodiment.

  In FIG. 1, a train running in an underground tunnel is conceptually shown. In many cases, the subway runs under large roads. Therefore, if the subway is on the ground as it is, you can see the scenery (buildings, sky, etc.) on the left and right of the large road on the ground. Sometimes it doesn't run under a big road, but even in that case, if you assume that the train has gone up on the ground, you can still see the scenery. This embodiment is a system that allows passengers in a train to see the scenery on the ground such as buildings and sky patterns that can be seen from windows on both sides of the train, assuming that the train has run up to the ground. The scenery on the ground is displayed on a display unit (display) in the vehicle as shown in FIG. The passenger can know the scenery on the ground by looking at the display unit.

  Below, the system of this embodiment is demonstrated in detail.

  2 is a diagram illustrating a schematic configuration of the information display system, FIG. 3 is a conceptual diagram illustrating a data structure stored in the storage unit, FIG. 4 is a diagram illustrating an example of an advertisement synthesized on a screen, and FIG. The figure which shows the display part installed in the upper part, FIG. 6 is a figure which shows the image each displayed on the left and right door, FIG. 7 is a figure which shows the image of a different background.

  An information display system 10 according to the present embodiment is mounted on a vehicle 100 and includes a storage unit 12, a display unit 14, and a control unit 16. The storage unit 12, the display unit 14, and the control unit 16 are connected to each other by wire or wireless.

  As shown in FIG. 3, the storage unit 12 stores building data, weather data, background data, and advertisement data.

  The building data is created by three-dimensional computer graphics (3DCG), and is data for expressing buildings and roads that are seen outside the vehicle 100 in an area where the vehicle 100 operates. The building data is a moving image and is stored in association with the position of the vehicle so that it can be synchronized with the operation of the vehicle 100.

  The weather data is data related to the weather of the day, and indicates the change in weather over time of the day. The weather data includes, for example, information such as 9 am to 12:00 in the morning, cloudy from 12:00 to 18:00, cloudy from 18:00 to 21:00, and clear from 21:00 to 24:00.

  The background data is data indicating an image of the background of the building. The background data is stored in advance in the storage unit 12 in order to change the image captured on the background of the building according to time and weather. For example, background data includes backgrounds with different sky brightness such as dawn, morning, noon, evening, and night, and backgrounds with different weather such as clear sky, rainy weather, thunderstorms, and cloudy sky. Each is used to display in combination.

  The advertisement data is data related to an advertisement synthesized with a building represented by building data and a background represented by background data. As shown in FIG. 4, for example, the advertisement represented by the advertisement data is a balloon advertisement attached on the roof of a building, or a building or background displayed on the display unit 14 as a wrapping bus printed on the vehicle body. Is synthesized into the video. The advertisement may be a billboard advertisement, a balloon advertisement flying in the sky, or an airship advertisement.

  The display unit 14 is a thin display panel such as a liquid crystal display panel or a plasma display panel, and is installed in each passenger vehicle in order to display an image stored in the storage unit 12. The display part 14 is installed in the upper part of the door of the both sides of a vehicle, for example, as shown in FIG. Since the doors are on both the right and left sides in the direction of travel, the display unit 14 appears differently on the right and left doors as shown in FIG. 6, that is, on the ground as shown in FIG. Each image is displayed.

  Further, the image displayed on the display unit 14 is displayed with the background changed according to time and weather as described above. The background is a bright blue sky as shown at the top of FIG. 7 when it is a sunny day, and a bright reddish sky as shown on the second side from the top when it is a sunny evening. If it is a clear night, as shown in the third from the top, it will be a sky where you can see stars and the moon, and if it is a rainy day, it will be a dimly raining sky.

  The control unit 16 controls transmission of image data from the storage unit 12 to the display unit 14 and causes the display unit 14 to display an image (outside landscape) corresponding to the current position of the traveling vehicle. Here, the detection unit 18 is connected to the control unit 16 in order to acquire the current position of the vehicle. As shown in FIG. 2, the detection unit 18 is attached to the wheel 102 of the vehicle 100. The detection part 18 detects the rotation speed of a wheel.

  Note that the storage unit 12 and the control unit 16 may be achieved by diverting a part of the functions of an ATC (Automatic Train Control) system mounted on the vehicle, for example, or by an independent CPU or storage device. May be.

(Operating mode)
Next, the operation of the information display system 10 during operation of the vehicle 100 will be described. Since each part of the information display system 10 is controlled by the control part 16, it demonstrates as operation | movement of the control part 16 mainly.

  FIG. 8 is a flowchart showing an operation flow of the information display system in the operation mode, FIG. 9 is a diagram showing an example of an image displayed on the display unit immediately before the vehicle arrives at the station, and FIG. It is a figure which shows an example of the image displayed on a display part when it does.

  First, the control unit 16 confirms the current time and the current position (step S1). The current time is obtained as time data from an in-vehicle clock (not shown). Further, the current position is obtained from the rotational speed of the wheel acquired from the detection unit 18.

  Next, the control unit 16 refers to the storage unit 12 (step S2). Here, the control unit 16 extracts the building data of the building corresponding to the position from the storage unit 12 based on the current position. Furthermore, the control unit 16 extracts background data of the background that matches the current weather and time from the storage unit 12 from the weather data and the time data. Further, the control unit 16 extracts advertisement data of an advertisement to be combined with the current building data from the storage unit 12.

  The control unit 16 synthesizes the data extracted from the storage unit 12 and transmits the data to the display unit 14 for display (step S3). Specifically, for example, a three-dimensional image of a building outside the current position is combined with a sunny evening background, and an advertisement bus is synthesized and displayed on the display unit 14. Therefore, a three-dimensional image of the scenery seen from the left and right windows is displayed on the display unit 14 as if the vehicle 100 is running on the ground surface. Since the weather and time are also reflected in the background, the passenger can also determine the approximate time and weather from the image.

  The control unit 16 determines whether or not the normal operation has ended (step S4). When the normal operation has not ended (step S4: NO), the processing from step S1 is repeated. As a result, the image displayed on the display unit 14 flows in real time in synchronization with the position of the vehicle 100. When the normal operation ends (step S4: YES), the information display system 10 ends the operation.

  As described above, in the information display system 10 of the present embodiment, even in the vehicle 100 where the outside such as a subway is not visible, the external scenery is displayed on the display unit 14 in the vehicle in synchronization with each other. You can get a rough idea of the location. By knowing the current position, the passenger can get a sense of security compared to a case where the passenger does not know where the car is running. You can also check the rough location and direction of the building that will become a landmark, making it easier to get a sense of direction when moving after getting off.

  Further, since the background sky changes according to the time and weather data (weather forecast) on the day, the passenger can know not only the current position but also the time and weather. Therefore, for example, it can be known that the outside is already dark or that it is raining. If you know that it is raining, you can prepare for the rain, such as preparing an umbrella.

  In addition, the display unit 14 displays a wrapping bus, a balloon advertisement, and the like in addition to the building. Since the advertisement stands out, an effective advertising effect can be obtained.

  In the present embodiment, a 3D computer graphic moving image is used for an image of a building or a background without using an actual moving image. This is because if the actual scenery is streamed as a video as it is, there are too many signboards, it is difficult to see the landmark building, and the image becomes complicated. By selecting a building or the like that is likely to help the passenger to determine the current position, creating a three-dimensional image and displaying it on the display unit 14 as a moving image, the position determination by the passenger can be facilitated. Since buildings and the like are selected and displayed, an image of an advertising wrapping bus or the like is also conspicuous, and the advertising effect can be further improved. However, although the three-dimensional image has the above advantages, an actual landscape image may be taken and displayed on the display unit 14. This is because flowing the actual scenery corresponding to the current position also helps to grasp the current position.

  In the operation mode, as shown in FIG. 7, an example in which an image that can be seen when the vehicle 100 is running on the ground is displayed on the display unit 14 has been described. However, it is not limited to this. For example, immediately before the vehicle arrives at the station, as shown in FIG. 9, an image as if looking up at the ground from the basement may be displayed. In this way, by displaying the image to be looked up, it is possible to give a sense of reality to the position of a building or the like on the ground. Further, when the station arrives, as shown in FIG. 10, the station name is displayed in addition to the building image, so that the station can be more clearly communicated to the passengers.

  Moreover, in the said embodiment, although the information of the present position of a vehicle was obtained with the rotation speed of the wheel, it is not limited to this. Position information may be received from a central control center outside the vehicle, or position information may be acquired by GPS.

  Moreover, in the said embodiment, the background of the image displayed on the display part 14 is changed with time or the weather. In conjunction with this, the brightness and color of the lighting in the vehicle may be changed. For example, the light may be brightened blue on a sunny day, red on a sunny evening, or slightly dimmed on a rainy day. In this case, the control unit 16 also controls lighting in the vehicle 100.

  In the above-described embodiment, the form in which an image (moving image) is displayed on the display unit 14 has been described. However, a wireless transmission environment may be laid in the vehicle, and image data may be transmitted to a portable terminal held by a passenger so that an image is displayed on the display of the portable terminal. The passenger can know the state outside the vehicle by looking at the terminal.

(Update mode)
Next, a system and procedure for updating information stored in the storage unit 12 will be described.

  FIG. 11 is a diagram showing the information display system and the server, and FIG. 12 is a flowchart showing the operation flow of the information display system in the update mode.

  As shown in FIG. 11, the information display system 10 is wirelessly connected to the server 20 during the update operation. The wireless connection with the server 20 is made before the vehicle 100 returns to the garage and driving is resumed.

  The server 20 automatically acquires building data, advertisement data, and weather data for the day in advance, or inputs such data. Since there are only a plurality of types of background images as described above and the number of background images does not increase any more, it is not necessary to update the images after they are first input to the server 20. Therefore, in the following, a procedure for updating the building data, the advertisement data, and the weather data will be described.

  As shown in FIG. 12, first, the control unit 16 determines whether or not the server 20 is connected (step S11). Connection with the server 20 is performed by wireless LAN communication or the like via the antenna 104 installed in the vehicle 100. If it is not connected to the server 20 (step S11: NO), it waits until it is connected to the server 20. When connected to the server 20 (step S11: YES), the control unit 16 confirms with the server 20 whether the building data is updated (step S12).

  When the building data is updated (step S12: YES), the control unit 16 receives the building data from the server 20 and updates the building data in the storage unit 12 (step S13). When building data is not updated (step S12: NO), the process proceeds to step S14. As long as there is no change in the building to be displayed, the building data is usually not changed and is not updated every day.

  Subsequently, the control unit 16 confirms with the server 20 whether the advertisement data has been updated (step S14). When the advertisement data is updated (step S14: YES), the control unit 16 receives the advertisement data from the server 20 and updates the advertisement data in the storage unit 12 (step S15). If the building data is not updated (step S14: NO), the process proceeds to step S16. As with the building data, the advertisement data basically does not need to be updated unless the advertiser changes every day. However, it is conceivable to change the advertisement medium reflecting the advertisement and its appearance time and appearance position every day. This is to improve the advertising effect. Such an update of information is also included in the update of advertisement data.

  Finally, the control unit 16 receives weather data from the server 20 and updates the weather data in the storage unit 12 (step S16). The weather data is the weather forecast data for the day. Therefore, since the weather data should be updated every day, the update operation is executed without confirming whether or not there is an update.

  As described above, in the present embodiment, while the vehicle 100 is stored in the garage, various data necessary for displaying on the display unit 14 on the day is updated at a time. Therefore, there is no need to update data during the traveling mode. However, if communication with the server 20 is possible even during the travel mode, various data may be updated as needed.

  In addition, the form by which this invention is applied to a subway has been demonstrated through the said embodiment. However, the present invention is not limited to this. Even if it is not a subway, it can also be applied to trains that run on routes where the outside is not visible, such as tunnels. In this case, the scenery outside the tunnel can be displayed on the display unit 14. Thereby, the passenger can confirm the position of the vehicle even in the tunnel. Furthermore, the present invention may be applied to a train that can be seen from the window. According to an aspect of the present invention, the display unit 14 displays an advertisement synthesized with the three-dimensional image of the selected building. Therefore, landmarks and advertisements can stand out from the actual scenery. Passengers can see only the information they need.

10 Information display system,
12 storage unit,
14 Display section,
16 control unit,
18 detector,
20 servers,
100 vehicles,
102 wheels.

Claims (7)

A storage unit that stores, as image data, an image seen outside the vehicle in an area where the vehicle is traveling
A display unit for displaying the image;
A control unit that controls transmission of image data from the storage unit to the display unit and causes the display unit to display an image corresponding to the current position of the vehicle;
An information display system mounted on the vehicle.   The information display system according to claim 1, wherein the image is a three-dimensional computer graphic showing a state outside the vehicle. The storage unit stores weather data regarding the weather of the day,
The information display system according to claim 1, wherein the control unit changes the background weather of the image data according to the weather of the day based on the weather data.   The information display system according to claim 1, wherein the control unit changes at least one of background brightness and color of the image data in accordance with a current time. The storage unit stores advertisement data related to advertisements,
The information display system according to any one of claims 1 to 4, wherein the control unit displays the image obtained by combining the advertisements on the display unit.   The information storage system according to any one of claims 1 to 5, wherein the storage unit acquires weather data related to the weather of the day or advertisement data related to an advertisement from an external server. A detector that detects the rotational speed of the vehicle wheel;
The said control part determines the present position of the said vehicle as rotation speed of the wheel of a vehicle, The image synchronized with the said present position is transmitted to the said display part from the said memory | storage part to any one of Claims 1-6. The information display system described.