JP2004203338A - Image information delivery and display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image information delivery and display system which is mounted on trains and can totally reduce the capacity of contents stored. <P>SOLUTION: A reception display device disposed in each vehicle stores each information constituting an information screen, that is, part contents corresponding to a train type 101, destination 102, a car number 103, a station name 104, a guidance classification A105, and a guide classification B106 and is constructed so that an information screen corresponding to train information sent from a train information device disposed in each vehicle is displayed. In order to construct this guidance information using the part contents for display on a display panel, the reception display device comprises a storage part for storing part contents, a display control unit constituting an information screen using the part contents, and a display panel for displaying the information screen constituted by the display control unit. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a video information distribution / display system for providing video information to passengers in a train cabin.
[0002]
[Prior art]
In a conventional train-mounted video information distribution and display system, content that forms a screen such as destination guidance displayed by the reception display device provided in each car is stored in the reception display device as one piece of content for each screen. Was remembered in the department. (See Patent Document 1 and Patent Document 2)
[0003]
[Patent Document 1]
JP 2001-63581 A (pages 5-6, FIG. 5)
[Patent Document 2]
JP 2002-127905 A (page 5, FIG. 4)
[0004]
[Problems to be solved by the invention]
In the conventional video information delivery and display system as described above, since the video information is displayed by displaying one piece of content stored in the storage unit of the reception display device, the destination guidance content is: Even if the train type, the destination, the car number, etc. are different but the other content is the same, it is necessary to save it as a single content in the storage unit of the reception display device. For this reason, there is a problem in that the data capacity per piece of content increases and the total number of pieces of content in the entire system increases.
[0005]
Further, when dealing with an increase in the number of stations, there is a problem that even if there are common parts such as train type, destination, car number, etc., it is necessary to newly create the entire content, leading to an increase in content.
Also, for example, if you want to add the logo mark or date information of "XX year and month" to all content, you must add these logo mark and date information data to all content, which is enormous for content correction. There was a problem that time and labor were required.
[0006]
In addition, in the case of content with fine color usage, considering the capacity of the storage unit of the receiving display device, it is necessary to compress and save it as jpeg data or the like, but even if compressed, the data capacity can exceed 700 kbytes. Content exists. When displaying these large-capacity compressed content data, the processing time until the content data is decompressed and displayed may take 2 to 3 seconds or more, and the display delay due to this processing time gives the train passengers a sense of discomfort. There was a problem. To solve this problem, in the conventional system, still image data is stored not only in the storage unit of the video information distribution device but also in the storage unit of the receiving display device that performs display, and the data transmission time between vehicles However, the processing time described above is still necessary, and passengers feel uncomfortable with display delay.
[0007]
The present invention has been made to solve the above-described problems, and a first object of the present invention is to obtain a video information distribution / display system capable of reducing the total capacity of contents to be stored.
A second object is to obtain a video information distribution and display system capable of reducing the additional content capacity as much as possible even with an increase in station facilities.
A third object of the present invention is to obtain a video information distribution and display system that can easily perform content correction when adding a logo mark, date information data, or the like.
It is a fourth object of the present invention to obtain a video information distribution display system that does not give a sense of discomfort with display delay.
[0008]
[Means for Solving the Problems]
In the video distribution display system according to the present invention, a plurality of train information devices that are installed in each of a plurality of vehicles constituting a train and are interconnected to manage train information, and a train information device that is installed in a vehicle. Comprising a reception display device that displays a still image guidance screen according to train information transmitted from the storage device, and the reception display device stores a component content corresponding to each piece of information constituting the still image guidance screen; A display control unit configured using a component content stored in the storage unit for a still image guide screen corresponding to the train information transmitted from the train information device, and a still image guide screen configured by the display control unit And a display unit for displaying.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is an overall configuration diagram showing a video information delivery / display system according to Embodiment 1 of the present invention. Here, a train composed of a plurality of vehicles (No. 1 car to No. n car) is targeted.
In FIG. 1, a train information device 60 is mounted on each vehicle, and manages and processes train information (train travel position, door opening direction of each station). And the train information apparatus 60 of each vehicle is connected by the transmission path 11, and operate | moves mutually. The video information distribution device 70 is mounted on the leading vehicle, and among the video distribution information displayed in the train, the still image data Gb passes through the transmission path 11, and the moving image data Ga passes through the transmission path 30. Then, it is output to the reception display device 80. A branching device 31, a terminating device 32, and an amplifying device 33 are arranged on the transmission line 30. The reception display device 80 receives still image data Gb and moving image data Ga (indicated by arrows in the figure) and displays them as described later. The wireless transmission / reception device 50 is connected to the video information distribution device 70, receives video distribution data or the like from the ground station 51 wirelessly, and outputs it to the video information report distribution device 70.
[0010]
FIG. 2 is a diagram showing an internal configuration of the video information distribution apparatus of the video information distribution display system according to Embodiment 1 of the present invention.
In FIG. 2, as an internal configuration of the video information distribution device 70, a communication I / F 71 that is an interface with the wireless transmission / reception device 50, a communication I / F 72 that is an interface with the train information device 60, and a memory that stores video information. Unit 73, an image processing unit 74 that performs image processing, a D / A conversion unit 75 that performs digital / analog conversion, a signal modulation unit 76 that performs signal modulation, and a CPU 77 that controls the video information distribution device 70. doing.
Video information input via the wireless transmission / reception device 50 or from the outside via the storage medium 90 such as a CD-ROM is temporarily stored in the storage unit 73. Among the video distribution information, the still image data Gb is output to the train information device 60 via the transmission line 11, and the moving image data Ga is converted into an analog signal by the D / A conversion unit 75 after image processing by the image processing unit 74. Then, the signal is modulated in the high frequency range by the signal modulator 76 and output via the transmission line 30. Here, the still image data Gb is component content described later.
[0011]
FIG. 3 is a diagram showing an internal configuration of the reception display device of the video information distribution display system according to Embodiment 1 of the present invention.
In FIG. 3, the reception display device 80 includes a signal demodulator 81 that demodulates moving image data Ga transmitted via the transmission path 30, an A / D converter 82 that performs analog / digital conversion on the demodulated moving image data, and an image. A storage unit 83 that stores information, an image processing unit 84 that performs image processing, a display panel 85 (display unit) that displays video, a display control unit 86 that controls display of video, and an input interface for still image data Communication I / F 87 and a CPU 88 that controls the reception display device 80.
The still image data Gb transmitted from the video information distribution device 70 via the transmission path 11 is component content and is stored in the storage unit 83. The component content stored in the storage unit 83 is configured as a still image guide screen by the display control unit 86 and displayed on the display panel 85.
[0012]
FIG. 4 is a schematic diagram showing a video display method of the video information delivery / display system according to Embodiment 1 of the present invention.
In FIG. 4, the content of each information of train type 101 (Japanese, Roman characters), destination 102, car number 103, station name 104 (Hiragana, Kanji, Roman characters), guidance type A 105, and guidance type B 106 constituting the guidance screen are as follows: It is stored in the storage unit 83 of the reception display device 80 at the component level. Hereinafter, this component level content is referred to as component content.
FIG. 5 is a diagram showing a video display sequence of the video information delivery / display system according to Embodiment 1 of the present invention.
[0013]
Next, the operation will be described.
The video information distribution device 70 receives video information data via the wireless transmission / reception device 50 or from a storage medium 90 such as a CD-ROM, and is stored in the internal storage unit 73. Of the video information data, still image data Gb is component content, which is transmitted to the reception display device 80 via the transmission path 11 and stored in the internal storage unit 83. Train information (train travel position, car number, train type, destination, next station name, door opening direction, etc.) necessary for displaying video information is input to the reception display device 80 from the train information device 60. The guide screen for the still image corresponding to is displayed.
[0014]
Next, the destination guidance display operation based on the train information from the train information device 60 will be described.
FIG. 4 shows an example of the destination guidance display content displayed by the reception display device 80. The destination guidance is displayed separately on the upper half and the lower half of the screen. In the upper half display section, the train type 101, the destination 102, the car number 103, the station name (next station or arrival station) 104, the guidance type A105, etc. are displayed. Do. Further, the lower half display unit displays a guidance type B106 for guiding transfer guidance, facility guidance, required time guidance, route guidance, priority seat manner guidance, non-smoking manner guidance, priority seat manner guidance, and the like.
[0015]
For the display of FIG. 4, the reception display device 80 stores the component content in the storage unit 83, the component content has a small capacity, and the component content can be diverted to several types of destination guidance screens. The content capacity of the entire system can be reduced.
Regarding the content of the guidance type B106 in the lower half display section, each content is divided into a portion that does not depend on train information such as a base map portion and a title portion, and a portion that changes depending on train information such as a required time to a certain station. By dividing the content into parts, the entire content capacity is reduced.
[0016]
Next, a video display sequence by the reception display device 80 in FIG. 5 will be described.
In the reception display device 80, in step S1, the train travel position 201 from the train information device 60, the car number 202, the train type 203, the destination 204, the next station name 205, the guidance type B206 displayed on the lower half display unit, the door Train information such as the opening direction 207 is input, and after step S2, a still image guidance screen corresponding to each train information is displayed as part content. That is, in step S2, the display control unit 86 in the reception display device 80 selects a corresponding one from the component contents stored in the storage unit 83 based on the train information. Further, in step S3, these component contents are assembled and configured and displayed on the screen in step S4.
The processing time during this time is reduced in data capacity because the content is componentized, and the processing time for decompressing and displaying the compressed data such as jpeg is 1 second or less at most. There is no sense of incongruity to passengers.
In addition, most of the component contents displayed on the upper half display section are character contents. By drawing this in font, the data capacity of these contents is compared with the case of having video data. Can be further reduced.
[0017]
According to the first embodiment, when the content is stored as a component in the reception display device and displayed, the component content is formed to form the guide screen, so that the data capacity can be reduced.
In addition, the additional content capacity can be reduced as much as possible even with an increase in station facilities.
In addition, content correction can be easily performed when a logo mark, date information data, or the like is added.
Furthermore, since the processing time is short, the display delay does not give a sense of incongruity.
[0018]
【The invention's effect】
As described above, the present invention is mounted on each of a plurality of vehicles constituting a train and is interconnected with each other to manage train information, and mounted on the vehicle. A reception display device that displays a still image guide screen according to train information to be transmitted, the reception display device storing a part content corresponding to each piece of information constituting the still image guide screen, and a train A display control unit configured to use a component content stored in the storage unit for a still image guide screen corresponding to train information transmitted from the information device, and a still image guide screen configured by the display control unit are displayed. Therefore, it is possible to reduce the data capacity when displaying the still image guide screen, and to easily cope with addition and correction of contents.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing a video information delivery / display system according to Embodiment 1 of the present invention;
FIG. 2 is a diagram showing an internal configuration of a video information distribution device of the video information distribution display system according to Embodiment 1 of the present invention.
FIG. 3 is a diagram showing an internal configuration of a reception display device of the video information distribution display system according to Embodiment 1 of the present invention.
FIG. 4 is a schematic diagram showing a video display method of the video information delivery / display system according to Embodiment 1 of the present invention;
FIG. 5 is a diagram showing a video display sequence of the video information delivery / display system according to Embodiment 1 of the present invention;
[Explanation of symbols]
11 Transmission path for still image data 30 Transmission path for moving image data 31 Branch device 32 Termination device 33 Amplification device 50 Wireless transmission / reception device 51 Ground station 60 Train information device 70 Video information distribution device 71 Communication I / F
72 Communication I / F
73 Storage Unit 74 Image Processing Unit 75 D / A Conversion Unit 76 Signal Modulation Unit 77 CPU
31 branch device 80 reception display device 81 signal demodulation unit 82 A / D conversion unit 83 storage unit 84 image processing unit 85 display panel 86 display control unit 87 communication I / F
88 CPU
90 Storage medium Ga Movie data Gb Still image data 101 Destination guidance content train type 102 Destination guidance content destination 103 Destination guidance content car number 104 Destination guidance content station name 105 Destination guidance content guidance type A
106 Destination guidance content guidance type B
201 Train travel position from train information device 202 Car number from train information device 203 Train type from train information device 204 Destination from train information device 205 Next station name from train information device 206 Guidance type B from train information device
207 Door opening direction from train information device

Claims (3)

A plurality of train information devices mounted on each of a plurality of vehicles constituting the train and interconnected with each other to manage train information, and a stationary according to the train information mounted on the vehicle and transmitted from the train information device A reception display device for displaying a guide screen for a picture, and the reception display device is transmitted from a storage unit for storing component contents corresponding to each piece of information constituting the guide screen for the still image and the train information device. A display control unit configured to use a component content stored in the storage unit, and a display unit configured to display the still image guide screen configured by the display control unit. A video distribution display system characterized by comprising: 2. The video information delivery / display system according to claim 1, wherein at least one of the component contents is rendered with fonts. 3. The video information distribution display system according to claim 1, further comprising a video information distribution device that is mounted on the vehicle and distributes the component content to the reception display device.

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