JP6883980B2 - Display devices, display systems, display methods and programs - Google Patents

Description

The present invention relates to display devices, display systems, display methods and programs.

For railcars manufactured in recent years, the position of the vehicle is acquired, and the destination guidance, stop station guidance, transfer guidance, door opening / closing guidance, and various advertising guidance suitable for the acquired vehicle position are obtained. Is provided with a display device for displaying.
Further, like the destination indicator described in Patent Document 1, it is provided in a vehicle of public transportation, acquires the position information of the vehicle from the satellite positioning system, and the vehicle stops at any stop or station. There is known a display device that identifies the vehicle and displays destination guidance according to the specified stop or station.

On the other hand, many vehicles are provided with a display device that displays a simple guide to the destination and the next stop by the operation of the vehicle crew.

Japanese Unexamined Patent Publication No. 2015-132975

Even on routes where vehicles equipped with a display device for displaying simple guidance are used, it is required that the vehicle be equipped with a display device for displaying detailed guidance in order to improve services to passengers. It is also required to eliminate the operation by the crew and reduce the burden on the crew.

Various guidance for vehicles equipped with a display device that displays simple guidance, for example, according to the position of the vehicle obtained from the rotation speed of the axle detected by the speed generator and the circumference of the wheels. It costs a lot of money to remodel a vehicle equipped with a display device that displays. In addition, a display device that acquires position information from a satellite positioning system and displays guidance may not be able to obtain an accurate position when the vehicle is located in a mountainous area or underground, and may display incorrect guidance.

The present invention has been made in view of the above circumstances, and provides a display device, a display system, a display method, and a program that accurately display various guidances with a simple configuration without the operation of a crew member. The purpose.

In order to achieve the above object, the display device of the present invention is
A display device provided on the vehicle, the display unit, a radio unit that receives a radio signal including identification information transmitted on the travel path on which the vehicle travels by a radio installed along the route on which the vehicle travels, and a radio unit. An information acquisition unit that acquires identification information from a radio signal including identification information received by the radio unit, a determination unit that determines the position of a vehicle based on the identification information acquired by the information acquisition unit, and a position that represents the position of the vehicle. A storage unit that stores display image data that associates information with display information that represents an image displayed by the display unit, and a selection unit that selects display information from the display image data based on the position of the vehicle determined by the discrimination unit. If, e Bei a display control unit of the image represented by the display information selected by the selection unit on the display unit, and the radio signals, further, if it contains the updated image information representing an image displayed by the display unit The information acquisition unit acquires the updated image information together with the identification information, and updates the display information associated with the position information indicating the position of the vehicle determined by the discrimination unit in the display image data stored in the storage unit. It includes an image update unit that updates image information.
In order to achieve the above object, the display device of the present invention is
A display device provided in a vehicle that receives and receives a radio signal including identification information transmitted on a travel path on which the vehicle travels by a display unit and a radio installed along the route on which the vehicle travels. When the radio signal including the identification information is interrupted, the radio unit that generates and outputs the interruption information indicating that the radio signal including the identification information is interrupted and the radio signal including the identification information received by the radio unit are used. , The information acquisition unit that acquires the identification information and the identification information acquired by the information acquisition unit are stored, and the vehicle stores the identification information based on the stored identification information and the interruption information output from the radio unit. Based on the discriminator that determines the position between the radio that transmitted the radio signal including, and the radio that is adjacent to the radio in the traveling direction of the vehicle, and the position of the vehicle that the discriminator determines. From the display image data in which the position information representing the position of the vehicle and the display information representing the image displayed by the display unit are associated with each other, the selection unit for selecting the display information and the image represented by the display information selected by the selection unit are displayed. It is provided with a display control unit for displaying on the unit.
In order to achieve the above object, the display device of the present invention is
A display device provided on the vehicle, the display unit and a radio unit that receives a radio signal including identification information transmitted on the travel path on which the vehicle travels by a radio installed along the route on which the vehicle travels. , Select the information acquisition unit that acquires the identification information from the radio signal including the identification information received by the radio unit, and the display information that represents the image displayed by the display unit based on the identification information acquired by the information acquisition unit. A detection unit that includes a unit and a display control unit that displays an image represented by the display information selected by the selection unit on the display unit, and further detects the signal strength of the radio signal including the identification information received by the radio unit. And a discriminating unit that determines the open / closed state of the vehicle door based on the signal strength detected by the detection unit, and the selection unit is based on the open / closed state of the vehicle door determined by the discriminating unit. Display information is selected from the opening / closing image data in which the opening / closing information indicating the open / closed state of the door and the image information representing the image displayed by the display unit are associated with each other.
In order to achieve the above object, the display system of the present invention
A radio device installed along the route on which the vehicle travels and a display device provided on the vehicle are provided, and the display device includes a display unit and identification information transmitted by the radio device on the travel path on which the vehicle travels. Based on the radio unit that receives the radio signal including, the information acquisition unit that acquires the identification information from the radio signal including the identification information received by the radio unit, and the identification information acquired by the information acquisition unit, the position of the vehicle is determined. Based on the discriminant unit that stores the display image data that associates the position information that represents the position of the vehicle and the display information that represents the image displayed by the display unit, and the position of the vehicle that the discriminator discriminates. It has a selection unit that selects display information from display image data, and a display control unit that displays the image represented by the display information selected by the selection unit on the display unit. When the updated image information representing the image to be displayed is included, the information acquisition unit acquires the updated image information together with the identification information, and represents the position of the vehicle determined by the discriminating unit in the display image data stored in the storage unit. It has an image update unit that updates display information associated with position information to updated image information.
In order to achieve the above object, the display method of the present invention is:
A method of displaying an image on a display device provided in a vehicle, which includes a step of receiving a radio signal including identification information and a step of acquiring identification information from the received radio signal including identification information. The process of determining the position of the vehicle based on the identification information, and the position information stored in the display device based on the determined position of the vehicle and indicating the position of the vehicle and the display information indicating the image displayed by the display device. The process of selecting display information from the display image data associated with the display device, the process of displaying the image represented by the selected display information on the display device, the wireless signal, and the updated image representing the image displayed by the display device. When information is included, the process of acquiring updated image information together with the identification information and the display information associated with the position information indicating the determined vehicle position in the display image data stored in the display device are updated. Includes a step of updating to image information.
In order to achieve the above object, the program of the present invention
The computer acquires identification information from a radio unit that receives a radio signal including identification information, a radio signal including the received identification information, and the radio signal further includes updated image information representing an image displayed by a display device. If so, the information acquisition unit that acquires updated image information together with the identification information, the determination unit that determines the position of the vehicle based on the acquired identification information, the position information that indicates the position of the vehicle, and the image displayed by the display device. A storage unit that stores display image data associated with the display information to be represented, a selection unit that selects display information based on the determined position of the vehicle, and a display that displays the image represented by the selected display information on the display device. In the control unit and the stored display image data, the display information associated with the position information indicating the determined position of the vehicle is made to function as an image update unit that updates the updated image information.

According to the present invention, since the display device displays guidance based on the identification information included in the radio signal transmitted by the radio provided along the route on which the vehicle travels, the vehicle crew has a simple configuration. Various guides can be displayed accurately without the operation of.

Schematic diagram showing a railroad vehicle provided with the display device according to the first embodiment of the present invention and a route on which the railroad vehicle is operated. A block diagram showing a configuration of a display device according to a first embodiment of the present invention. The figure which shows the hardware structure of the display device which concerns on Embodiment 1 of this invention. The figure which shows the display image data which concerns on Embodiment 1 of this invention. A flowchart showing a display process of one-way operation in the display device according to the first embodiment of the present invention. A block diagram showing a configuration of a display device according to a second embodiment of the present invention. A table showing identification information and traveling direction in the operation of the railway vehicle according to the second embodiment of the present invention from station A to station D. A table showing identification information and a traveling direction in the operation of the railway vehicle according to the second embodiment of the present invention from the station D to the station A. The figure which shows the display image data which concerns on Embodiment 2 of this invention. A block diagram showing a configuration of a display device according to a third embodiment of the present invention. The figure which shows the display image data which concerns on Embodiment 3 of this invention. A flowchart showing a display process according to a reception state in the display device according to the third embodiment of the present invention. A block diagram showing a configuration of a display device according to a fourth embodiment of the present invention. A flowchart showing a display process based on signal strength in the display device according to the fourth embodiment of the present invention. A block diagram showing a configuration of a display device according to a fifth embodiment of the present invention. The figure which shows the opening and closing image data which concerns on Embodiment 5 of this invention. A flowchart showing an opening / closing display process in the display device according to the fifth embodiment of the present invention. A block diagram showing a configuration of a display device according to a sixth embodiment of the present invention. The figure which shows the updated display image data which concerns on Embodiment 6 of this invention. The figure which shows the display image data which concerns on the modification of Embodiment 1 of this invention.

Hereinafter, the display device according to the embodiment of the present invention will be described with reference to the drawings.

Embodiment 1.
The display device 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. The display device 100 determines which station the railroad vehicle is located at by receiving a radio signal including the identification information of the radio provided at the station, and provides guidance according to the station where the vehicle is located. Is displayed.
For ease of understanding, as shown in FIG. 1, the railway vehicle 10 provided with the display device 100 has station A as the starting station and is a route passing through station B and station C at the ending station. It will be described as being operated in one direction toward a certain station D. The case where the railroad vehicle 10 is operated in a round trip will be described in the second embodiment described later. Further, the railway vehicle 10 will be described as a one-car train.

First, the radios 20A to 20D provided at the stations A to D will be described.
As shown in FIG. 1, the radio 20A is provided in the center of the platform A1 where the railroad vehicle 10 of the station A enters. The radio 20A transmits a radio signal S20A including identification information representing the radio 20. The radio signal S20A is transmitted on the travel path R on which the railway vehicle 10 travels, that is, on the rail on which the railway vehicle 10 travels. Further, when the railroad vehicle 10 stops at the home A1, the radio signal S20A is transmitted in a range covering the railroad vehicle 10.

The radios 20B, 20C, and 20D are different from the radios 20A in that they are provided at the home B1 of the station B, the home C1 of the station C, and the home D1 of the station D, where the railroad vehicle 10 enters. Further, each of the radios 20B, 20C, and 20D is a radio signal S20B including identification information representing the radio 20B, a radio signal S20C including identification information representing the radio 20C, and a radio signal including identification information representing the radio 20D. It differs from the radio 20A in that each of the S20Ds is transmitted. Similar to the radio signal S20A, the range in which each of the radio signals S20B, S20C, and S20D is transmitted is transmitted in a range covering the railroad vehicle 10 when the railroad vehicle 10 stops at the platforms B1, C1, and D1.

In the following, when the radios 20A, 20B, 20C, and 20D are collectively referred to as the radio 20, and the radio signals S20A, S20B, S20C, and S20D are collectively referred to as the radio signal S20. When stations A, B, C, and D are collectively referred to, they are described as station ST.

Next, the display device 100 will be described.
The display device 100 is provided above the passenger door in the railroad vehicle 10. The display device 100 displays guidance to passengers. Guidance to passengers is, for example, destination guidance, stop guidance, transfer guidance, and advertisements.

As shown in FIG. 2, the display device 100 displays the display unit 110 that displays an image in the railroad vehicle 10, the radio unit 120 that receives the radio signal S20 transmitted by the radio equipment 20, and the display unit 110. It includes a control unit 130 for controlling and a storage unit 140 for storing display image data 142.

The control unit 130 has an information acquisition unit 132 that acquires identification information representing the radio device 20 included in the radio signal S20. Further, the control unit 130 has a determination unit 134 that determines the position of the railway vehicle 10 based on the identification information acquired by the information acquisition unit 132. The control unit 130 further has a selection unit 136 for selecting display information representing an image displayed by the display unit 110 from the display image data 142 based on the position of the railway vehicle 10 determined by the determination unit 134, and a selection unit 136. It has a display control unit 138 that causes the display unit 110 to display an image represented by the display information selected by. The display image data 142 stored in the storage unit 140 is data in which the position information representing the position of the railroad vehicle 10 and the display information representing the image displayed by the display unit 110 are associated with each other.

FIG. 3 shows the hardware configuration of the display device 100. The control unit 130 is composed of a CPU (Central Processing Unit) 152 and a RAM (Random Access Memory) 154. The functions of the information acquisition unit 132, the determination unit 134, the selection unit 136, and the display control unit 138 in the control unit 130 are realized by the CPU 152 executing the program stored in the storage unit 140. The CPU 152, the RAM 154, the display unit 110, the wireless unit 120, and the storage unit 140 are connected by the bus 156.

The display unit 110 is an LED display in which light emitting diodes (LEDs: Light Emitting Diodes) are arranged in a matrix. The display unit 110 displays an image represented by the display information selected by the selection unit 136.

The radio unit 120 receives and demodulates the radio signal S20 transmitted by the radio device 20. Further, the radio unit 120 transmits the demodulated radio signal S20 to the information acquisition unit 132 of the control unit 130. The radio unit 120 includes a known antenna, a demodulator, an amplifier, and a communication control unit (not shown). The wireless unit 120 is provided on a surface opposite to the display surface on which the image of the display unit 110 is displayed.
The wireless unit 120 and the wireless device 20 communicate using a wireless communication standard. Communication standards include Bluetooth (registered trademark), ZigBee (registered trademark), and wireless LAN (Local Area Network).

The storage unit 140 stores the display image data 142 and the program that causes the control unit 130 to function. The storage unit 140 is composed of a ROM (Read Only Memory) and a RAM.

Returning to FIG. 2, the control unit 130 will be described. The control unit 130 controls the display of the display unit 110.

The information acquisition unit 132 receives the radio signal S20 transmitted by the radio unit 120. The information acquisition unit 132 acquires identification information representing the radio 20 from the received radio signal S20. Then, the information acquisition unit 132 outputs the acquired identification information to the determination unit 134.

The determination unit 134 determines which station ST the railway vehicle 10 is located on, based on the received identification information. Since the identification information output from the information acquisition unit 132 is the identification information representing each of the radios 20A to 20D, the discrimination unit 134 uses the radio that the railway vehicle 10 represents based on the received identification information. It can be determined that the machine 20 is located at the station ST where the machine 20 is provided. For example, since the radio 20B is provided at the station B, the discriminating unit 134 determines that the railroad vehicle 10 is located at the station B when the identification information representing the radio 20B is input.
The determination unit 134 generates position information representing the station ST where the determined railway vehicle 10 is located, and outputs the position information to the selection unit 136.

The selection unit 136 represents the image displayed by the display unit 110 from the display image data 142 based on the position information output from the determination unit 134, that is, the station ST where the railway vehicle 10 determined by the determination unit 134 is located. Select information.
As shown in FIG. 4, the display image data 142 is data in which the position information and the display information representing the image displayed by the display unit 110 are associated with each other. For example, the position information indicating station B is associated with the display information indicating "This vehicle is bound for station D. The next stop is station C."

The display control unit 138 causes the display unit 110 to display an image represented by the display information selected by the selection unit 136. The display control unit 138 causes the display unit 110 to continue displaying the image displayed on the display unit 110 until display information representing an image different from the image displayed on the display unit 110 is selected by the selection unit 136. ..

Next, with reference to FIG. 5, the display processing of one-way operation in the display device 100 will be described.
The radio 20 provided at the station ST is supplied with electric power by a known timer, and starts transmitting the radio signal S20 before the start of operation of the first train. On the other hand, the railway vehicle 10 enters the platform A1 of the station A, which is the starting station, from the vehicle warehouse with the display device 100 supplied with electric power, and departs from the station A.

When the wireless unit 120 receives the wireless signal S20 transmitted by the wireless device 20, the wireless unit 120 demodulates the wireless signal S20 and outputs it to the information acquisition unit 132 (step S101). The information acquisition unit 132 acquires identification information representing the transmission source radio 20 from the radio signal S20 output from the radio unit 120 and outputs the identification information to the discrimination unit 134 (step S102). The information acquisition unit 132 waits until the radio signal S20 is output from the radio unit 120.

The determination unit 134 determines the station ST where the railway vehicle 10 is located, based on the identification information output from the information acquisition unit 132. Further, the discriminating unit 134 generates position information representing the station ST where the discriminated railroad vehicle 10 is located and outputs it to the selection unit 136 (step S103). The selection unit 136 selects display information representing the image displayed by the display unit 110 from the display image data 142 based on the position information output from the determination unit 134, and outputs the selected display information to the display control unit 138. (Steps S104a, S104b, 104c, 104d). The display control unit 138 causes the display unit 110 to display an image represented by the display information output from the selection unit 136 (step S105). If the end instruction is not input to the control unit 130 after the display of the selected image (step S105) (step S106; NO), the display process returns to the reception of the radio signal S20 (step S101). When the end instruction is input to the control unit 130 (step S106; YES), the display process ends.

The traveling of the railway vehicle 10 and the display of the display device 100 will be specifically described.
The railroad vehicle 10 stops at station A, which is the starting station, before departure. In this case, since the radio unit 120 receives the radio signal S20A of the radio 20A provided at the station A, the identification information representing the radio 20A is output from the information acquisition unit 132 to the discrimination unit 134. The determination unit 134 determines that the railway vehicle 10 is located at the station A based on the identification information output from the information acquisition unit 132. The selection unit 136 represents “this vehicle is bound for station D. The next stop is station B” based on the station where the railway vehicle 10 determined by the discrimination unit 134 is located, that is, station A. Select the display information. The image "This vehicle is bound for station D. The next stop is station B." is displayed on the display unit 110.

When the railroad vehicle 10 departs from the station A, the railroad car 10 is located between the station A and the station B, as shown in FIG. In this case, since the radio unit 120 does not receive the radio signal S20A of the radio 20A provided at the station A, the information acquisition unit 132 waits until the radio signal S20 is output from the radio unit 120. On the other hand, the display control unit 138 displays the image displayed on the display unit 110 until the selection unit 136 selects display information representing an image different from the image displayed on the display unit 110. The image of "This vehicle is bound for station D. The next stop is station B." is continuously displayed on the display unit 110.

When the railroad vehicle 10 continues to travel and enters the premises of the station B, the radio unit 120 receives the radio signal S20B of the radio 20B provided at the station B. In this case, the identification information representing the radio 20B is output from the information acquisition unit 132 to the determination unit 134, and the determination unit 134 determines that the railway vehicle 10 is located at the station B. Then, the selection unit 136 selects the display information indicating "this vehicle is bound for station D. The next stop station is station C." shown in FIG. 4, and the display unit 110 is displayed as "this vehicle is bound for station D." The next stop is station C. ”is displayed.

When the railway vehicle 10 travels from station B to station C and from station C to station D, the display information selected by the selection unit 136 is displayed in the same manner as when the railway vehicle 10 travels from station A to station B. The image to be represented is displayed on the display unit 110.

As described above, the display device 100 determines the position of the railcar 10 based on the identification information included in the radio signal S20 of the radio 20, and displays the selected image based on the determined position of the railcar 10. Since it is displayed, various guides can be displayed accurately without the operation of the crew. Since the radio 20 is provided at the station ST, the display device 100 can accurately determine the position of the railroad vehicle 10 regardless of the surrounding geographical conditions and buildings, and displays accurate guidance without the operation of the crew. it can.

Embodiment 2.
The display device 200 according to the second embodiment will be described with reference to FIGS. 6 to 9.
In the first embodiment, the railroad vehicle 10 is operated in one direction from the station A to the station D, but in the present embodiment, the railroad vehicle 10 provided with the display device 200 includes the station A and the station D. It is operated in a round trip between. The display device 200 determines the traveling direction of the railway vehicle 10 from the station ST where the railway vehicle 10 is located based on the identification information.

The display device 200 is provided on the railroad vehicle 10 that reciprocates between the station A and the station D in the first embodiment. As shown in FIG. 6, the display device 200 includes a discrimination unit 234 and a selection unit 236 in place of the discrimination unit 134 and the selection unit 136 in the first embodiment. Further, the storage unit 140 stores the display image data 242 instead of the display image data 142.
Other configurations are the same as those in the first embodiment.

Similar to the determination unit 134 of the first embodiment, the determination unit 234 determines the station ST where the railway vehicle 10 is located based on the identification information input from the information acquisition unit 132.

Further, the discrimination unit 234 stores the identification information representing the radio 20A as the initial identification information at the time of starting or resetting the display device 200. Further, the discrimination unit 234 stores the received identification information when the received identification information and the stored identification information are different. The determination unit 234 overwrites and stores the received identification information after determining the traveling direction of the railway vehicle 10, which will be described later.

The determination unit 234 determines the traveling direction of the railway vehicle 10 based on the combination of the stored identification information and the received identification information.
FIG. 7 is a table showing identification information and traveling directions in the operation of the railway vehicle 10 from station A to station D. FIG. 8 is a table showing identification information and traveling directions in the operation of the railway vehicle 10 from station D to station A. For example, when the railway vehicle 10 is operated from the station A to the station D, the discriminating unit 234 stores the identification information representing the radio 20A when the display device 200 is activated, so that the identification information is stored in the station A. The identification information is identification information representing the radio 20A. Further, the identification information input from the information acquisition unit 132 also becomes the identification information representing the radio 20A. Therefore, the discriminating unit 234 can discriminate that the traveling direction of the railway vehicle 10 is the station D direction.

Further, when the railroad vehicle 10 is operated from the station A to the station D and enters the premises of the station B, the stored identification information becomes the identification information representing the radio 20A, and the identification information input from the information acquisition unit 132 is wireless. It is the identification information representing the machine 20B. Therefore, as shown in FIG. 7, the discriminating unit 234 can discriminate that the traveling direction of the railway vehicle 10 is the station D direction. Similarly, the determination unit 234 can determine the traveling direction of the railway vehicle 10 at stations C and D.

On the other hand, when the railway vehicle 10 is operated from the station D to the station A, the discriminating unit 234 stores the identification information representing the radio 20A at the time of starting or resetting the display device 200, so that the identification information is stored at the station D. The identification information provided is identification information representing the radio 20A. Further, the identification information input from the information acquisition unit 132 becomes the identification information representing the radio 20D. Therefore, the discriminating unit 234 can discriminate that the traveling direction of the railway vehicle 10 is the station A direction. When the railway vehicle 10 is operated from station D to station A and enters the premises of station B from station C, the stored identification information becomes the identification information representing the radio 20C, and the identification information input from the information acquisition unit 132 is Since the identification information represents the radio 20B, the discriminating unit 234 can discriminate that the traveling direction of the railway vehicle 10 is the station A direction. Similarly, the determination unit 234 can determine the traveling direction of the railway vehicle 10 at stations A and C.

As described above, the discrimination unit 234 can discriminate the traveling direction of the railway vehicle 10 based on the stored identification information and the identification information input from the information acquisition unit 132.
In FIG. 7, when the stored identification information is the identification information representing the radio 20C and the identification information input from the information acquisition unit 132 is the identification information representing the radio 20D, the traveling direction to be determined is determined. Although it is in the direction of station D, since station D is the terminal station, it may be determined to be in the direction of station A. Further, in FIG. 8, when the stored identification information is the identification information representing the radio 20B and the identification information input from the information acquisition unit 132 is the identification information representing the radio 20A, the station A is the terminal station. Therefore, it may be determined to be the station D direction.

The determination unit 234 generates position information indicating the station ST where the determined railway vehicle 10 is located and travel information indicating the determined traveling direction, and outputs the information to the selection unit 236.

The selection unit 236 selects the display information representing the image displayed by the display unit 110 from the display image data 242 based on the position information and the traveling information output from the determination unit 234.
As shown in FIG. 9, the display image data 242 is data in which position information, traveling information, and display information representing an image displayed by the display unit 110 are associated with each other. For example, the position information indicating the station B, the traveling information indicating the direction of the station D, and the display information indicating "This vehicle is bound for the station D. The next stop is the station C." Are associated with each other. Further, the position information indicating the station B, the traveling information indicating the direction of the station A, and the display information indicating "This vehicle is bound for the station A. The next stop is the station A." Are associated with each other.
The image represented by the display information selected by the selection unit 236 is displayed on the display unit 110 by the display control unit 138.

As described above, the display device 200 determines the traveling direction of the station ST where the railway vehicle 10 is located and the railway vehicle 10 based on the identification information included in the radio signal S20 of the radio device 20, and the determined railway vehicle. Since the selected image is displayed based on the traveling direction of the station ST where 10 is located and the railroad car 10, various guidances are provided without the operation of the crew even when the railcar 10 is operated in a round trip. Can be displayed accurately. Further, since the radio 20 is provided at the station ST, the display device 200 can accurately determine the position of the railroad vehicle 10 regardless of the surrounding geographical conditions and buildings, and provides accurate guidance without the operation of the crew. Can be displayed.

Embodiment 3.
The display device 300 according to the third embodiment will be described with reference to FIGS. 10 to 12.
In the first and second embodiments, the discriminating units 134 and 234 discriminate the station ST where the railway vehicle 10 is located in a state where the radio unit 120 receives the radio signal S20. When the display device 300 receives the radio signal S20, the display device 300 determines the station ST where the railway vehicle 10 is located. The display device 300 further determines that the railroad vehicle 10 is located between the station ST and the next station ST when the radio signal S20 is interrupted.

In order to facilitate understanding, the railway vehicle 10 provided with the display device 300 has station A as the starting station and is the terminal station on the route passing through station B and station C, as in the first embodiment. It will be described as being operated toward D.
As shown in FIG. 10, the display device 300 includes a radio unit 320, a discrimination unit 334, and a selection unit 336 in place of the radio unit 120, the discrimination unit 134, and the selection unit 136 in the first embodiment. Further, the storage unit 140 stores the display image data 342 instead of the display image data 142.
Other configurations are the same as those in the first embodiment.

The wireless unit 320 enters the reception state at intervals according to the communication standard. According to the Bluetooth® standard, the radio unit 320 is in the receiving state at 1.28 second intervals. Similar to the radio unit 120 in the first embodiment, the radio unit 320 in the receiving state demodulates the received radio signal S20 and transmits it to the information acquisition unit 132.

Further, when the received radio signal S20 is interrupted, the radio unit 320 generates interruption information indicating that the radio signal S20 is interrupted and outputs the interruption information to the discrimination unit 334. Since the radio unit 320 enters the reception state at intervals according to the communication standard, it can be determined that the received radio signal S20 has been interrupted. The interruption here means that the radio unit 320 cannot receive the radio signal S20.

Similar to the discrimination unit 134 in the first embodiment, the discrimination unit 334 discriminates the station ST where the railway vehicle 10 is located based on the received identification information. Further, the discrimination unit 334 stores the identification information output from the information acquisition unit 132.

Further, the discriminating unit 334 determines that the railway vehicle 10 is located between the station ST and the next station ST based on the stored identification information and the interruption information output from the radio unit 320.
The interruption of the reception of the received radio signal S20 means that the railway vehicle 10 has departed from the station ST where the train was stopped. When the railway vehicle 10 departs from the station ST where the railway vehicle 10 is stopped, the railway vehicle 10 is located between the station ST provided with the radio 20 represented by the stored identification information and the next station ST. Therefore, the discriminating unit 334 determines the station ST provided with the radio 20 represented by the stored identification information by the railway vehicle 10 based on the stored identification information and the interruption information, and the next station ST. It can be determined that it is located in between.

For example, when the railroad vehicle 10 operated from the station A to the station D enters the premises of the station B, the discriminating unit 334 is the radio device included in the radio signal S20B received by the radio unit 320, as in the first embodiment. Based on the identification information representing 20B, it is determined that the railroad vehicle 10 is located at the station B. The determination unit 334 stores identification information representing the radio 20B. Then, when the railroad vehicle 10 departs from the station B and heads for the station C, the discriminating unit 334 moves the railroad vehicle 10 to the station B and the station based on the stored identification information and the interruption information output from the radio unit 320. It is determined that it is located between C and C.
As described above, the discrimination unit 334 has the station ST where the railroad vehicle 10 is located and the railroad vehicle 10 based on the state where the radio signal S20 is received and the state where the radio signal S20 is interrupted, that is, the reception state of the radio signal S20. Can be determined to be located between the stations ST.

The determination unit 334 outputs the position information indicating between the station ST where the determined railway vehicle 10 is located or the station ST where the railway vehicle 10 is located and the station ST to the selection unit 336.

The selection unit 336 selects display information representing the image displayed by the display unit 110 from the display image data 342 based on the position information output from the determination unit 334.
As shown in FIG. 11, the display image data 342 is data in which the position information and the display information representing the image displayed by the display unit 110 are associated with each other. For example, the location information indicating station B is associated with the display information indicating "This vehicle is bound for station D. It is station B. The next stop is station C." Further, the position information indicating between the station B and the station C is associated with the display information indicating "This vehicle is bound for station D. The next stop is station C." The image represented by the display information selected by the selection unit 336 is displayed on the display unit 110 by the display control unit 138.

Next, with reference to FIG. 12, the display process according to the reception state in the display device 300 will be described.
Similar to the first embodiment, the radio 20 starts transmitting the radio signal S20 before the start of operation of the first train. The railway vehicle 10 enters the platform A1 of the station A, which is the starting station, from the vehicle warehouse with the display device 300 supplied with electric power, and departs from the station A.
First, similarly to the display device 100 of the first embodiment, when the radio unit 320 receives the radio signal S20, the station ST where the railway vehicle 10 is located is determined and the selected image is displayed (steps S101 to S105). ). When the control unit 130 receives the end instruction, the display process ends (step S106; YES). The determination unit 334 stores the identification information output by the information acquisition unit 132 in the position determination (step S103).
When the control unit 130 does not receive the end instruction (step S106; NO), the radio unit 320 determines whether the radio signal S20 is interrupted (step S301). When the radio unit 320 determines that the radio signal S20 is not interrupted, that is, the radio signal S20 is being received (step S301; reception), the process returns to the acquisition of identification information (step S102). When the radio unit 320 determines that the radio signal S20 has been interrupted, the radio unit 320 generates interruption information indicating that the radio signal S20 has been interrupted and outputs the interruption information to the determination unit 334 (step S301; interruption).

The determination unit 334 determines that the railway vehicle 10 is located between the station ST and the next station ST based on the stored identification information and the radio information output from the radio unit 320. Further, the discriminating unit 334 generates position information representing the space between the station ST and the station ST where the discriminated railway vehicle 10 is located and outputs the position information to the selection unit 336 (step S302). The selection unit 336 selects display information representing the image displayed by the display unit 110 from the display image data 342 based on the position information output from the determination unit 334, and outputs the selected display information to the display control unit 138. (Steps S303a, S303b, S303c). The display control unit 138 causes the display unit 110 to display an image represented by the display information output from the selection unit 336 (step S304). When the end instruction is not input to the control unit 130 (step S305: NO), the display process returns to the determination of interruption (step S301). When the end instruction is input to the control unit 130 (step S305: YES), the display process ends.

As described above, the display device 300 determines the position of the railcar 10 based on the identification information included in the radio signal S20 transmitted by the radio 20 and the reception state of the radio signal S20, and the discriminated railway. Since the image selected based on the position of the vehicle 10 is displayed, more detailed guidance can be displayed accurately without the operation of the vehicle crew. Further, since the radio 20 is provided at the station ST, the display device 300 can display accurate guidance regardless of the geographical conditions and buildings in the vicinity. In the present embodiment, the discrimination unit 334 stores the identification information output by the information acquisition unit 132, so that even when the railroad vehicle 10 is operated in a round trip, as in the second embodiment, Detailed guidance can be displayed accurately.

Embodiment 4.
The display device 400 according to the fourth embodiment will be described with reference to FIGS. 11, 13, and 14.
In the first to third embodiments, the display devices 100, 200, and 300 include a display unit 110, a wireless unit 120, 320, a control unit 130, and a storage unit 140, but may include other configurations. Good.

For ease of understanding, the railway vehicle 10 provided with the display device 400 is operated from station A as the starting station and toward station D, which is the ending station, on a route passing through station B and station C. It is explained as. Further, the radio 20 is provided at the head of the traveling direction of the platform railroad vehicle 10 at the station ST, and the radio signal S20 is transmitted in a range covering the railroad vehicle 10 when the railroad vehicle 10 stops at the platform. It is explained as.

As shown in FIG. 13, the display device 400 includes a display unit 110, a radio unit 420 that receives the radio signal S20 transmitted by the radio device 20, a control unit 130 that controls the display of the display unit 110, and display image data. It includes a storage unit 140 that stores 342 and a detection unit 460 that detects the signal strength of the radio signal S20 received by the radio unit 420. The control unit 130 includes an information acquisition unit 132, a discrimination unit 434, a selection unit 436, and a display control unit 138.
The display unit 110 in the present embodiment is the same as the display unit 110 in the first embodiment. Further, the storage unit 140 is the same as the storage unit 140 in the first embodiment except that the display image data 342 in the third embodiment is stored instead of the display image data 142.

Similar to the radio unit 120 in the first embodiment, the radio unit 420 receives and demodulates the radio signal S20 transmitted by the radio unit 20. The radio unit 420 transmits the demodulated radio signal S20 to the information acquisition unit 132.

The detection unit 460 detects the signal strength of the radio signal S20 received by the radio unit 420. When the signal strength of the radio signal S20 changes, the detection unit 460 generates signal strength information indicating that the signal strength of the radio signal S20 has changed, and outputs the signal strength information to the discrimination unit 434. Here, the signal strength information indicating that the signal strength of the radio signal S20 has changed indicates that the signal strength of the radio signal S20 is a constant value, has increased from a constant value, or has decreased from a constant value. .. Here, the constant value of the signal strength means that the reception level of the signal strength continues.

The hardware configuration of the control unit 130 in the present embodiment is the same as that of the control unit 130 in the first embodiment. Further, the information acquisition unit 132 and the display control unit 138 in the present embodiment are the same as the information acquisition unit 132 and the display control unit 138 in the first embodiment.

The determination unit 434 determines the station ST where the railway vehicle 10 is located, based on the received identification information and the signal strength information output from the detection unit 460.
When the railroad vehicle 10 enters the premises of the station ST and stops at the stop position, the distance between the display device 400 and the radio 20 gradually becomes shorter because the radio 20 is provided at the head of the platform of the station ST. , It becomes constant when the railroad vehicle 10 stops at the stop position. Therefore, when the detection unit 460 outputs the signal strength information indicating that the signal strength is a constant value, the discrimination unit 434 causes the railway vehicle 10 to move to the station ST based on the received identification information and the signal strength information. It can be determined that it is located.

Further, when the railroad vehicle 10 departs from the stopped position, the distance between the display device 400 and the radio 20 gradually decreases from a constant value, and then increases. Therefore, when the detection unit 460 outputs the signal strength information indicating that the signal strength has increased from a constant value, the discrimination unit 434 wirelessly transmits the railway vehicle 10 based on the received identification information and the signal strength information. It can be determined that the machine 20 is located between the station ST provided and the next station ST.

The determination unit 434 outputs to the selection unit 436 the position information indicating between the station ST where the determined railway vehicle 10 is located or the station ST where the railway vehicle 10 is located and the station ST.

The selection unit 436 selects display information representing the image displayed by the display unit 110 from the display image data 342 based on the position information output from the determination unit 434. As shown in FIG. 11, the display image data 342 is data in which the position information and the display information representing the image displayed by the display unit 110 are associated with each other.

Next, with reference to FIG. 14, a display process based on the signal strength in the display device 400 will be described.
Similar to the first embodiment, the radio 20 starts transmitting the radio signal S20 before the start of operation of the first train. The railway vehicle 10 enters the platform A1 of the station A, which is the starting station, from the vehicle warehouse with the display device 400 supplied with electric power, and departs from the station A.
When the radio signal S20 is received, the radio unit 420 outputs the received radio signal S20 to the information acquisition unit 132 (step S401). The information acquisition unit 132 acquires identification information representing the radio 20 from the radio signal S20 output from the radio unit 420 and outputs the identification information to the discrimination unit 434. Further, the detection unit 460 detects the signal strength of the received radio signal S20, generates signal strength information indicating that the signal strength of the radio signal S20 has changed, and outputs the signal strength information to the discrimination unit 434 (step S402).

Based on the identification information output from the information acquisition unit 132 and the signal strength information output from the detection unit 460, the determination unit 434 is the station ST where the railway vehicle 10 is located, the railway vehicle 10 is the station ST, and the next station ST. Determine that it is located between and. Further, the determination unit 434 generates position information and outputs it to the selection unit 436 (step S403). The selection unit 436 selects display information representing the image displayed by the display unit 110 from the display image data 342 based on the position information output from the determination unit 434, and outputs the selected display information to the display control unit 138. (Step S404a to Step S404g). The display control unit 138 causes the display unit 110 to display an image represented by the display information output from the selection unit 436 (step S405). After the selected image is displayed (step S405), if the end instruction is not input to the control unit 130 (step S406; NO), the display process returns to the reception of the radio signal (step S401). When the end instruction is input to the control unit 130 (step S406; YES), the display process ends.

As described above, the display device 400 determines the position of the railway vehicle 10 based on the identification information acquired by the information acquisition unit 132 and the signal strength of the radio signal S20 detected by the detection unit 460, and the determined railway vehicle. Since the images selected based on the 10 positions are displayed, more accurate and detailed guidance can be displayed without the operation of the crew. Further, since the radio 20 is provided at the station ST, the display device 400 can display accurate guidance regardless of the surrounding geographical conditions and buildings. By providing one of the two radios 20 at one end of the platform of the station ST and the other radio 20 at the other end of the platform of the station ST, the display device 400 allows the railroad vehicle 10 to make a round trip. Even when the train is operated, more detailed guidance can be displayed accurately.

Embodiment 5.
The display device 500 according to the fifth embodiment will be described with reference to FIGS. 15 to 17.
In the fourth embodiment, the discriminating unit 434 discriminates the position of the railroad vehicle 10 based on the identification information acquired by the information acquisition unit 132 and the signal strength of the radio signal S20 detected by the detection unit 460. The state of the railcar 10 may be determined based on the signal strength of the radio signal S20 detected by the 460.

As shown in FIG. 15, the display device 500 includes a discrimination unit 534 and a selection unit 536 in place of the discrimination unit 434 and the selection unit 436 in the fourth embodiment. Further, the storage unit 140 stores the display image data 342 and the open / close image data 512. Other configurations are the same as those in the fourth embodiment.

Similar to the discrimination unit 434 in the fourth embodiment, the discrimination unit 534 sets the station ST where the railway vehicle 10 is located and the railway vehicle 10 to the station ST based on the received identification information and the signal strength detected by the detection unit 460. , Determines that it is located between the next station ST.

Further, when the determination unit 534 determines that the railway vehicle 10 is located at the station ST, the determination unit 534 determines the open / closed state of the door of the railway vehicle 10.
Since the display device 500 is provided above the passenger door in the railway vehicle 10, the signal of the radio signal S20 received by the radio unit 420 when the door of the railway vehicle 10 is changed from the closed state to the open state. The strength increases. Further, when the door of the railway vehicle 10 is changed from the open state to the closed state, the signal strength of the radio signal S20 received by the radio unit 420 is reduced. Therefore, the determination unit 534 can determine the open / closed state of the door of the railway vehicle 10 based on the signal strength information output from the detection unit 460.

The door of the railroad vehicle 10 changes from the closed state to the open state after the railroad car 10 stops at the station ST. On the other hand, when the railway vehicle 10 is stopped, the signal strength of the radio signal S20 becomes a constant value, and when the door of the railway vehicle 10 is changed from the closed state to the open state, the signal strength of the radio signal S20 increases. Therefore, the discrimination unit 534 determines that the door of the railroad vehicle 10 is in the open state when the signal strength information indicating that the signal strength of the radio signal S20 has increased from a constant value is input from the detection unit 460. .. Further, the signal strength of the radio signal S20 becomes a constant value during the period from the open state to the closed state of the door of the railroad vehicle 10, and the signal strength of the radio signal S20 decreases when the door is closed. Therefore, the discrimination unit 534 determines that the door of the railroad vehicle 10 is in the closed state when the signal strength information indicating that the signal strength of the radio signal S20 has decreased from a constant value is input from the detection unit 460. ..

The determination unit 534 generates open / close information indicating that the door of the railway vehicle 10 is in the open state or the closed state, and outputs the open / close information to the selection unit 536.

The selection unit 536 selects display information representing an image displayed by the display unit 110 from the opening / closing image data 512 stored in the storage unit 140 based on the opening / closing information output from the discrimination unit 534.
As shown in FIG. 16, the opening / closing image data 512 is data in which the opening / closing information and the display information representing the image displayed by the display unit 110 are associated with each other. For example, open / close information indicating that the door is open is associated with display information indicating "the door will close soon." The image represented by the display information selected by the selection unit 536 is displayed on the display unit 110 by the display control unit 138.

The display process in the display device 500 will be described.
The display device 500 performs the display process in the same manner as the display process of the display device 400 in the fourth embodiment. Here, the display device 500 performs an opening / closing display process after it is determined that the railroad vehicle 10 is located at the stop position of the station ST and an image is displayed on the display unit 110.

FIG. 17 shows an opening / closing display process in the display device 500.
In the opening / closing display process, first, the signal strength information output by the detection unit 460 is input to the discrimination unit 534 (step S501). The determination unit 534 determines the open / closed state of the door of the railway vehicle 10 based on the signal strength information (step S502).

When the determination unit 534 determines that the door of the railway vehicle 10 is in the open state, the determination unit 534 generates open / close information indicating that the door is in the open state and outputs it to the selection unit 536 (step). S502; open). The selection unit 536 selects image information representing the image displayed by the display unit 110 from the open / close image data 512 based on the open / close information indicating that the door is in the open state, and outputs the image information to the display control unit 138 (step S503). ). The display control unit 138 causes the display unit 110 to display an image represented by the display information output from the selection unit 536 (step S504). In this case, the opening / closing display process returns to the input of signal strength information (step S501).

On the other hand, when the determination unit 534 determines that the door of the railway vehicle 10 is in the closed state, the determination unit 534 generates open / close information indicating that the door is in the closed state and outputs it to the selection unit 536. (Step S502; closed). The selection unit 536 selects image information representing the image displayed by the display unit 110 from the open / close image data 512 based on the open / close information indicating that the door is closed, and outputs the image information to the display control unit 138 (step S505). ). The display control unit 138 causes the display unit 110 to display an image represented by the display information output from the selection unit 536 (step S506). In this case, the opening / closing display processing is completed, and the display processing of the display device 500 returns to the reception of the radio signal (step S401) in the fourth embodiment.

As described above, the display device 500 can determine the open / closed state of the door of the railway vehicle 10 based on the signal strength of the radio signal S20, and can display the selected image based on the determined open / closed state of the door. Therefore, the display device 500 can accurately display more detailed guidance without the operation of the crew. Further, since the radio 20 is provided at the station ST, the display device 500 can display accurate guidance regardless of the surrounding geographical conditions and buildings.

Embodiment 6.
The display device 600 according to the sixth embodiment will be described with reference to FIGS. 4, 18, and 19.
The image information representing the image displayed by the display unit 110 in the display image data 142, 242, and 342 may be updated based on the radio signal S20 transmitted by the radio device 20.

In the present embodiment, the radio 20 is wirelessly or wiredly connected to an information distribution device (not shown). The information distribution device is a device that distributes a display target image displayed by the display unit 110. The information distribution device is, for example, an information distribution server provided at a command post that monitors the operation of a tablet terminal, a laptop computer, a desktop computer, and a railroad vehicle 10. When the updated image information representing the display target image displayed by the display unit 110 is distributed from the information distribution device, the radio device 20 transmits the identification information representing the radio device 20 and the updated image information distributed from the information distribution device. The including radio signal S20 is transmitted. When the updated image information is not distributed from the information distribution device, the radio 20 transmits a radio signal S20 that does not include the updated image information and includes identification information representing the radio 20.

In order to facilitate understanding, the railway vehicle 10 provided with the display device 600 has station A as the starting station and is the terminal station on the route passing through station B and station C, as in the first embodiment. It will be described as being operated toward D.

As shown in FIG. 18, the display device 600 includes a display unit 110, a radio unit 120 that receives the radio signal S20 transmitted by the radio device 20, a control unit 630 that controls the display of the display unit 110, and display image data. A storage unit 140 for storing 142 is provided.

The control unit 630 determines the position of the railroad vehicle 10 from the information acquisition unit 632 that acquires the identification information representing the radio device 20 and the updated image information representing the display target image displayed by the display unit 110 from the radio signal S20. It has a part 634 and. Further, the control unit 630 causes the image update unit 660, the selection unit 136 for selecting the image information representing the image displayed by the display unit 110, and the display unit 110 to display the image represented by the display information selected by the selection unit 136. It has a display control unit 138.
The hardware configuration of the control unit 630 is the same as that of the control unit 130 in the first embodiment.

The image update unit 660 updates the image information representing the image displayed by the display unit 110 of the display image data 142 based on the update image information representing the display target image displayed by the display unit 110 acquired by the information acquisition unit 632. To do.

The display unit 110, the wireless unit 120, and the storage unit 140 are the same as the display unit 110, the wireless unit 120, and the storage unit 140 in the first embodiment. Further, the selection unit 136 and the display control unit 138 of the control unit 630 are also the same as the selection unit 136 and the display control unit 138 in the first embodiment.

The control unit 630 is the same as the control unit 130 of the first embodiment when the radio signal S20 does not include the updated image information. Here, a case where the radio signal S20 includes the identification information representing the radio device 20 and the updated image information will be described.

The information acquisition unit 632 acquires the identification information representing the radio device 20 and the updated image information representing the display target image displayed by the display unit 110 from the radio signal S20 output by the radio unit 120. The information acquisition unit 632 outputs the acquired identification information to the determination unit 634. Further, the information acquisition unit 632 outputs the income updated image information to the image update unit 660.

Similar to the discrimination unit 134 in the first embodiment, the discrimination unit 634 discriminates the station ST where the railway vehicle 10 is located based on the received identification information. The determination unit 634 generates position information representing the station ST where the railway vehicle 10 is located, and outputs the position information to the selection unit 136 and the image update unit 660.

The image update unit 660 displays the updated image information based on the position information output by the determination unit 634 and the update image information output by the information acquisition unit 632, and the image information representing the image displayed by the display unit 110 of the display image data 142. Is associated with the position information of the display image data 142. As a result, the image information representing the image displayed by the display unit 110 of the display image data 142 is updated.

The update of the display image data 142 will be specifically described.
For example, in the radio signal S20 transmitted by the radio 20B, the identification information indicating the radio 20B and "This vehicle is bound for station D. The next stop is station C. At station C, a station valve fair is being held." It is assumed that the updated image information representing the above is included. In this case, when the railroad vehicle 10 enters the premises of the station B, the discriminating unit 634 determines that the railroad car 10 is located at the station B. Based on the position information and the updated image information, the image update unit 660 is associated with the position information representing the station B in the display image data 142 shown in FIG. The image information indicating "is station C." is updated to the image information indicating "This vehicle is bound for station D. The next stop station is station C. At station C, the station valve fair is being held." FIG. 19 shows the updated display image data 142.

The selection unit 136 selects display information representing the image displayed by the display unit 110 from the updated display image data 142 based on the position information output from the determination unit 634. The image represented by the display information selected by the selection unit 136 is displayed on the display unit 110 by the display control unit 138.

As described above, the display device 600 can update the display information representing the image displayed by the display unit 110 based on the radio signal S20 transmitted by the radio device 20, so that the railroad vehicle 10 is in operation. However, the image displayed by the display unit 110 can be updated to accurately display more detailed guidance without the operation of the crew. Further, since the radio 20 is provided at the station ST, the display device 600 can display accurate guidance regardless of the surrounding geographical conditions and buildings.

Although a plurality of embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, in the first to sixth embodiments, the wireless device 20 and the wireless units 120, 320, 420 are not limited to the communication standards of Bluetooth (registered trademark), ZigBee (registered trademark), and wireless LAN, and are unique communication. You may communicate using the standard. Further, the radio 20 is not limited to the station ST, and may be installed along the route on which the railroad vehicle 10 travels, and may be installed at a position where passengers can see famous places and historic sites from the railroad vehicle 10.

In the first to sixth embodiments, one radio 20 is provided in the station ST, but a plurality of radios 20 may be provided in the station ST. Further, the position where the radio 20 is provided is arbitrary. Further, the range in which the radio signal S20 is transmitted is also arbitrary.

For example, in the first embodiment, each of the two radios 20 is provided at both ends of the platform of the station ST. The radio signal S20 of one of the radios 20 is transmitted to a range received by the display device 100 before the railroad vehicle 10 stops at the stop position. The radio signal S20 of the other radio 20 is transmitted to a range received by the display device 100 after the railway vehicle 10 departs from the stopped position. The radio signals S20 of the two radios 20 are not received by the display device 100 when the railroad vehicle 10 is stopped at the stop position. In this case, the display device 100 provided on the railroad vehicle 10 determines the station ST where the railroad vehicle 10 is located based on the identification information representing one of the radios 20, and is selected based on the determined station ST. The image can be displayed on the display unit 110. Further, the display device 100 determines that the railway vehicle 10 is located between the station ST and the next station ST based on the identification information representing the other radio 20, and the determined station ST and the station ST The image selected based on the interval can be displayed on the display unit 110. As a result, the display device 100 can accurately display more detailed guidance.

Further, the railway vehicle 10 provided with the display devices 100 to 600 is not limited to a one-car train, and may be a plurality of cars. In this case, the display devices 100 to 600 are provided for each of the rolling stocks forming the railway rolling stock 10. The display devices 100 to 600 may display an image not only inside the railway vehicle 10 but also outside the railway vehicle 10. The display devices 100 to 600 may include a plurality of display units 110. Further, the vehicle provided with the display devices 100 to 600 is not limited to the railway vehicle 10, and may be a bus.

Each function of the display devices 100 to 600 can be realized by using an ordinary computer without relying on a dedicated system. For example, a display device 100 to 600 for executing display processing may be configured by storing and distributing a program for executing display processing in a computer-readable recording medium and installing the program on the computer. Good.

The display unit 110 is not limited to the LED display, and may be a liquid crystal display or an organic EL (Electroluminescence) display. The display image data 142, 242, and 342 are not limited to the storage unit 140, and may be stored in the control units 130 and 630.

In the first embodiment, the information acquisition unit 132 may also serve as the function of the determination unit 134.
In the first embodiment, each of the radios 20A, 20B, 20C, and 20D is provided at each of the stations A, B, C, and D. Therefore, the acquisition of the identification information from the radio signal S20 by the information acquisition unit 132 also serves to determine which station ST the railway vehicle 10 is located at. In this case, the selection unit 136 displays the display unit 110 from the display image data 144 shown in FIG. 20, which associates the identification information with the image displayed by the display unit 110 based on the identification information acquired by the information acquisition unit 132. Select the image you want to use. Similarly, in the second embodiment, the selection unit 236 may also serve as the function of the discrimination unit 234.

In the second embodiment, the identification information stored in the discrimination unit 234 at the time of starting or resetting the display device 200 as the initial identification information is not limited to the identification information representing the radio 20A. The initial identification information may be other than the identification information representing the radios 20B and 20C provided at the stations B and C which are intermediate stations. For example, the initial identification information may be identification information representing the radio 20D provided at the station D.

In the fourth and fifth embodiments, the detection unit 460 may be included in the radio unit 420 or the control unit 130. Further, the discriminating unit 434 and 534 obtain the distance between the radio 20 and the railroad vehicle 10 from the signal strength output from the detection unit 460, and obtain the identification information and the obtained distance between the radio 20 and the railroad vehicle 10. Based on this, the position of the railroad vehicle 10 may be determined. Further, in the fifth embodiment, the open / close image data 512 is not limited to the storage unit 140, but may be stored in the control unit 130.

10 Railroad vehicle, 20, 20A, 20B, 20C, 20D radio, 100, 200, 300, 400, 500 display device, 110 display unit, 120, 320, 420 radio unit, 130, 630 control unit, 132, 332, 632 Information acquisition unit, 134,234,334,434,534,634 Discrimination unit, 136,236,336,436,536 Selection unit, 138 Display control unit, 140 Storage unit, 142,144,242,342 Display image data , 152 CPU, 154 RAM, 156 bus, 460 detector, 512 open / close image data, 660 image update, ST, A, B, C, D station, A1, B1, C1, D1 home, R runway, S20, S20A, S20B, S20C, S20D wireless signals

Claims (10)

A display device installed in a vehicle
Display and
A radio unit that receives a radio signal including identification information transmitted on the road on which the vehicle travels by a radio installed along the route on which the vehicle travels.
An information acquisition unit that acquires the identification information from a radio signal including the identification information received by the radio unit, and an information acquisition unit.
Based on the identification information acquired by the information acquisition unit, a determination unit that determines the position of the vehicle and a determination unit.
A storage unit that stores display image data in which position information representing the position of the vehicle and display information representing an image displayed by the display unit are associated with each other.
A selection unit that selects the display information from the display image data based on the position of the vehicle determined by the discrimination unit.
An image represented by the display information selected by the selecting section, Bei give a, a display control unit for displaying on the display unit,
When the radio signal further includes updated image information representing an image displayed by the display unit, the information acquisition unit acquires the updated image information together with the identification information.
In the display image data stored in the storage unit, an image update unit that updates the display information associated with the position information representing the position of the vehicle determined by the determination unit to the update image information. Prepare, prepare
Display device. The discriminating unit determines the position of the vehicle based on the reception state of the identification information acquired by the information acquisition unit and the radio signal including the identification information received by the radio unit.
The display device according to claim 1. A detection unit for detecting the signal strength of the radio signal including the identification information received by the radio unit is provided.
The discrimination unit determines the position of the vehicle based on the identification information acquired by the information acquisition unit and the signal strength detected by the detection unit.
The display device according to claim 1. A display device installed in a vehicle
Display and
The radio signal including the identification information transmitted on the travel path on which the vehicle travels is received by the radio installed along the route on which the vehicle travels , and the received radio signal including the identification information is interrupted. If so, a radio unit that generates and outputs interruption information indicating that the radio signal including the identification information has been interrupted, and
An information acquisition unit that acquires the identification information from a radio signal including the identification information received by the radio unit, and an information acquisition unit.
The vehicle stores the identification information acquired by the information acquisition unit, and the vehicle contains the stored identification information based on the stored identification information and the interruption information output from the radio unit. A discriminating unit that determines that the information is located between the radio that transmitted the information and the radio that is adjacent to the radio in the traveling direction of the vehicle.
Selection to select the display information from the display image data in which the position information representing the position of the vehicle and the display information representing the image displayed by the display unit are associated with each other based on the position of the vehicle determined by the discriminating unit. Department and
A display control unit for displaying an image represented by the display information selected by the selection unit on the display unit is provided.
Display device. The selection unit includes: the identification information by the information acquiring unit acquires, based on the traveling direction of the vehicle is determined on the basis of the identification information, selects the display information,
The display device according to any one of claims 1 to 4. A display device installed in a vehicle
Display and
A radio unit that receives a radio signal including identification information transmitted on the road on which the vehicle travels by a radio installed along the route on which the vehicle travels.
An information acquisition unit that acquires the identification information from a radio signal including the identification information received by the radio unit, and an information acquisition unit.
Based on the identification information acquired by the information acquisition unit, a selection unit that selects display information representing an image displayed by the display unit, and a selection unit.
An image represented by the display information selected by the selecting section, Bei give a, a display control unit for displaying on the display unit,
Further, a detection unit that detects the signal strength of the radio signal including the identification information received by the radio unit, and a detection unit.
A discriminant unit for determining the open / closed state of the door of the vehicle based on the signal strength detected by the detection unit is provided.
The selection unit associates opening / closing information indicating the opening / closing state of the door of the vehicle with image information representing an image displayed by the display unit based on the opening / closing state of the door of the vehicle determined by the discrimination unit. Select the display information from the image data,
Display device. The discrimination unit determines the position of the vehicle based on the identification information acquired by the information acquisition unit and the signal strength detected by the detection unit.
The selection unit displays the display from display image data in which the position information representing the position of the vehicle and the display information representing the image displayed by the display unit are associated with each other based on the position of the vehicle determined by the discrimination unit. Select information,
The display device according to claim 6. Radios installed along the route the vehicle travels,
A display device provided on the vehicle is provided.
The display device is
Display and
A radio unit that receives a radio signal including identification information transmitted by the radio on the road on which the vehicle travels, and a radio unit.
An information acquisition unit that acquires the identification information from a radio signal including the identification information received by the radio unit, and an information acquisition unit.
Based on the identification information acquired by the information acquisition unit, a determination unit that determines the position of the vehicle and a determination unit.
A storage unit that stores display image data in which position information representing the position of the vehicle and display information representing an image displayed by the display unit are associated with each other.
A selection unit that selects the display information from the display image data based on the position of the vehicle determined by the discrimination unit.
An image represented by the display information selected by the selecting section, have a, a display control unit for displaying on the display unit,
When the radio signal further includes updated image information representing an image displayed by the display unit, the information acquisition unit acquires the updated image information together with the identification information.
In the display image data stored in the storage unit, an image update unit that updates the display information associated with the position information representing the position of the vehicle determined by the determination unit to the update image information. Have, have
Display system. It is a method of displaying an image on a display device provided in a vehicle.
The process of receiving a radio signal containing identification information,
The step of acquiring the identification information from the received radio signal including the identification information, and
A process of determining the position of the vehicle based on the acquired identification information, and
The display information is stored in the display device based on the determined position of the vehicle, and is obtained from display image data in which the position information representing the position of the vehicle and the display information representing the image displayed by the display device are associated with each other. And the process of selecting
A step of displaying the image represented by the selected display information on the display device, and
When the wireless signal further includes updated image information representing an image displayed by the display device, a step of acquiring the updated image information together with the identification information, and
The display image data stored in the display device includes a step of updating the display information associated with the determined position information representing the position of the vehicle to the updated image information.
Display method. Computer,
A radio unit that receives a radio signal containing identification information,
When the identification information is acquired from the received radio signal including the identification information and the radio signal further includes updated image information representing an image displayed by the display device, the updated image information is included with the identification information. Information acquisition department to acquire
A discriminating unit that determines the position of the vehicle based on the acquired identification information.
A storage unit that stores display image data in which position information representing the position of the vehicle and display information representing an image displayed by the display device are associated with each other.
A selection unit that selects the display information based on the determined position of the vehicle,
A display control unit that displays an image represented by the selected display information on the display device.
An image update unit that updates the display information associated with the determined position information representing the position of the vehicle in the stored display image data to the updated image information.
A program that works as.

Images