JP2001285332A - Information distribution system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable interactive acquisition of various information in a predetermined closed space without passing through a public communication network. A distribution server organizes and stores information received from an information providing device. The distribution server S and the radio base stations B1, B2,... Are connected via the local area network 1. The portable terminals T1, T2, ... communicate with the wireless base stations B1, B, ... by wireless LAN to interactively acquire the information stored in the distribution server S. No public communication network is used to acquire information, and no communication fee is required.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information distribution system suitable for distributing information in public areas, transportation, and the like.

[0002]

2. Description of the Related Art In recent years, with the development of wireless technology, communication between personal computers using a cellular phone or wireless LAN has rapidly spread. In addition to office networks using Ethernet (registered trademark) LAN (local area network) in offices and the like, telephones, Internet access, and the like in a mobile environment have been performed.

[0003] Currently, portable devices having a wireless communication function are used for (1) public network communication such as voice communication and Internet access via a communication provider (communication carrier), or (2) individuals (or within a department). For example, there is communication between devices such as connection between a personal computer and a printer.

[0004] With the recent spread of mobile phones and PDAs,
Portable devices are approaching an environment of "one person at a time", and it is considered that mobile use by mobile terminals, that is, use of communication functions in public areas is promoted.

On the other hand, on the information provider side, information is visually provided by an advertisement flyer, an electronic bulletin board, or the like in order to distribute information in a public area. For example,
Advertising fliers such as hanging advertisements have become widespread in public transportation in Japan, and news distribution and the like using a liquid crystal screen are also performed in some train cars.

[0006] However, it is impossible to perform interactive information distribution by providing information from an information provider using a current advertisement leaflet or a liquid crystal screen. That is, the information requested by the user cannot be individually provided. Therefore, at the present time, when each individual intends to receive the provision of interactive information, a method is employed in which each individual obtains the information via a public network using a portable device.

However, in a moving space such as a train, the radio wave condition may be extremely deteriorated, and there is a problem that wireless communication using a mobile phone or the like requires a high communication fee.

[0008]

As described above, conventionally, when interactive information is distributed in a public area, it is necessary for each individual to obtain information using a public network, and communication fees are high. There was a problem. Further, in particular, when used in a moving space, there has been a problem that normal communication may not be performed due to deterioration of the radio wave condition.

[0009] The present invention provides an information distribution system that enables interactive transmission and reception of various types of information between a device on the information provider side and a personal device without using a communication provider by using a wireless transmission path. The purpose is to provide a system.

[0010]

According to a first aspect of the present invention, there is provided an information distribution system, wherein a wireless LAN is connected between a distribution server in which distribution information is stored in a database and a portable terminal in a predetermined closed space. And a local area network connecting the distribution server and the wireless base station, the wireless base station being communicable with the mobile terminal and transmitting the distribution information to the mobile terminal, according to claim 2 of the present invention. The information distribution system includes a movable local area network, a distribution server connected to the local area network and storing distribution information, and a predetermined closed network connected to the local area network and moving together with the local area network. It is possible to communicate with a portable terminal in a space by a wireless LAN and transmit the distribution information from the distribution server. Serial is obtained by a radio base station to the portable terminal.

In claim 1 of the present invention, the distribution server stores the distribution information in a database. The wireless base station receives the distribution information from the distribution server via the local area network, and distributes the distribution information to the mobile terminal in a predetermined closed space by the wireless LAN.

In the second aspect of the present invention, the local area network is movable. The mobile terminal can communicate with a wireless base station via a wireless LAN in a predetermined closed space that moves with the local area network.
The mobile terminal acquires distribution information from the distribution server via the wireless base station. Even when the predetermined closed space moves, reliable information transmission to the portable terminal is possible by the wireless LAN and the local area network.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing one embodiment of an information distribution system according to the present invention.
This embodiment is applied to an information providing service in a local area network provided in a facility where an unspecified person can enter.

The LAN 1 is provided in a predetermined closed space (not shown) such as a facility or in the vicinity thereof. This closed space is an area where an unspecified person such as a public facility, department store, or shopping floor can enter.

On the LAN 1, a distribution server S and wireless base stations B1 to B5 are installed. Note that a plurality of distribution servers may be provided on the LAN 1, and the number of wireless base stations may be one or more. In consideration of the shape and size of the closed space, transmission power, etc. What is necessary is just to set to the number which maintains a good communication state.

The information providing device 9 stores various types of information to be distributed to users. The information providing device 9 accumulates information acquired from the company that has constructed the LAN 1 or one or more other companies. The information providing device 9 can communicate with the distribution server S on the LAN 1 via a predetermined communication line. The distribution server S is supplied with information as needed from the information providing device 9 and accumulates the information.

The radio base stations B1 to B5 can communicate with the distribution server via the LAN 1 to wirelessly transmit various kinds of information and supply the information received wirelessly to the distribution server S. ing.

In this embodiment, the portable terminals T1,
Are movable inside and outside the closed space where the LAN 1 is installed. The plurality of mobile terminals (T1, T2,...) That have moved into the closed space where the LAN 1 is installed are connected to the wireless LAN.
Thus, connection to the LAN 1 is possible. That is, the portable terminals T1, T2,... Can communicate with the wireless base stations B1 to B5 using a predetermined protocol of the wireless LAN and interactively acquire the information stored in the distribution server S. I have. The wireless base station and the mobile terminal can communicate with each other in a one-to-many relationship.

The information stored in the distribution server S is a LAN
1 may be obtained independently, or may be information obtained from another company. When distributing the information in the distribution server S to the mobile terminal, a predetermined fee may be collected from the user who owns the mobile terminal, and the business operator configuring the LAN 1 or another business operator may be required to collect the information. May be paid in whole or in part.

The distribution server S includes mobile terminals T1, T2,.
In order to facilitate the provision of information to the user having the information, the information supplied from the information providing device 9 is made into a database,
.. Are displayed on the portable terminals T1, T2,... In a predetermined display form.

Next, the operation of the embodiment configured as described above will be described.

Now, it is assumed that the portable terminals T1, T2,... Are located in the closed space where the LAN 1 is constructed. LAN1
The above distribution server S communicates with the information providing device 9 via a predetermined electric communication line to acquire and accumulate various information from the information providing device 9. In this case, the distribution server S organizes and accumulates information so that the user can easily acquire information considered to be effective in a predetermined closed space.

The portable terminals T1 to T3 communicate with the wireless base stations B2, B3, and B4 by wireless LAN to acquire information on the distribution server S. For example, by providing a display screen on the portable terminals T1 to T3, information from the distribution server S can be displayed. The mobile terminals T1 to T3 can be operated independently of each other,
The desired information can be obtained interactively.

Effective information is organized and stored in the closed space in the distribution server S, and the user can obtain necessary information by a simple operation.

Thus, the portable terminals T1, T2,.
If it is located in a closed space, information stored in the distribution server S can be obtained interactively without using a public line network. Therefore, each mobile terminal T1, T
No communication fee is required for the communication of 2,. In addition, when a company that has installed the LAN 1 or another company that provides information bears the fee required for the distribution service, the user who has the mobile terminal needs to bear the fee when using the information. There is no.

As described above, in the present embodiment, by constructing a local area network in a predetermined closed space and installing a wireless base station, a portable terminal located in the predetermined closed space can communicate with a wireless LAN. By making it possible to acquire information, and by organizing and accumulating information from the information providing device in the distribution server, the portable terminal can easily acquire necessary information.

FIG. 2 is an explanatory view showing another embodiment of the present invention. 2, the same components as those in FIG. 1 are denoted by the same reference numerals. This embodiment is applied to an information providing service in a mobile local area network.

LAN 2 is, for example, a moving closed space (not shown)
Or, it is arranged in the vicinity thereof and moves with the movement of the closed space. The closed space is configured by an area where an unspecified person can enter and exit, for example, a public area such as a train, a bus, a taxi, a ship, or an aircraft. In FIG. 1, the LAN 2 is moved by a solid line, a broken line, and
2 ', LAN2 ".

On the LAN 2, a distribution server S and radio base stations B1 to B5 are installed. Note that a plurality of distribution servers may be provided on the LAN 1, and the number of wireless base stations may be one or more. In consideration of the shape and size of the closed space, transmission power, etc. What is necessary is just to set to the number which maintains a good communication state.

The information providing device 10 stores various information to be distributed to the user. The information providing device 10 is a LAN2
Can be communicated with the distribution server S in a state where has moved to the position of the LAN 2 ″. The distribution server S receives the information from the information providing apparatus 10 as appropriate and stores the information. Has become.

The radio base stations B1 to B5 communicate with the distribution server S via the LAN 2 to transmit various information by radio and to supply the radio-received information to the distribution server S. Has become.

In the present embodiment, a plurality of portable terminals (T1, T2,
..) Can be connected to the LAN 2. The portable terminals T1, T2,... Communicate with the radio base stations B1 to B5 according to a predetermined protocol, and
It is possible to interactively acquire the information stored in the. The wireless base station and the mobile terminal can communicate with each other in a one-to-many relationship.

The information stored in the distribution server S is
The information may be obtained independently by the business operator configuring the LAN 2 or may be information obtained from another business operator. When distributing the information in the distribution server S to the mobile terminal, a predetermined fee may be collected from the user who owns the mobile terminal, and the business operator configuring the LAN 2 or another business operator may perform the information distribution. May be paid in whole or in part.

Next, the operation of the embodiment configured as described above will be described.

Now, it is assumed that the LAN 2 is at the position indicated by the solid line in FIG. In this case, the mobile terminals T1 to T3 are also L
By being located in the same movable closed space as AN2, LAN
2 can be connected. The portable terminals T1 to T3 communicate with the radio base stations B2, B3, and B4, respectively, and acquire information on the distribution server S. For example, by providing a display screen on the portable terminals T1 to T3, the distribution server S
It is possible to project information from Mobile terminal T1
T3 can be operated independently of each other, and desired information can be obtained interactively.

The LAN 2 moves as the closed space moves. The mobile terminals T1 to T3 can move independently of the LAN 2, but can also move as the mobile closed space moves. Mobile terminals T1 to T3 and each radio base station B2
, B3, B4 are connected by a wireless LAN,
Since the radio base stations B2, B3, B4 and the distribution server S are connected by the local area network, if the mobile terminals T1 to T3 move along with the movement of the mobile closed space, the mobile terminals T1 to T3 move when moving in the mobile closed space. In this case, a very good communication state can be maintained between the portable terminals T1 to T3 and the respective radio base stations B2, B3, B4.

Here, LAN2 is LAN2 'shown by a broken line.
, And temporarily stop in this state.
The portable terminal can move independently of the movement of the LAN 2, for example, as shown in FIG.
2 and LA
The connection with N2 can be released.

Conversely, like the portable terminals T4 'and T5',
In some cases, at the position of the LAN 2 ', the terminal moves to a position connectable to the LAN 2 (T4, T5). These portable terminals T4 and T5 can communicate with, for example, radio base stations B3 and B4. Similarly, in the example of FIG.
When the mobile terminal 2 has moved to the position of LAN2 "indicated by a dashed line, the portable terminals T1, T4, T6 to T8 can communicate with the respective radio base stations B2, B3, B1, B4, B5 on the LAN2. .

As described above, a plurality of portable terminals can communicate with one radio base station. L
A portable terminal T1 at a position connectable to AN2 to LAN2 "
From T8 to T8, it is possible to interactively acquire information from the distribution server S in a good communication state regardless of where the LAN2 to LAN2 ″ has moved or is moving.

Since the portable terminals T1, T2,... Do not use a public communication line to acquire information from the distribution server S, no communication fee is required. In addition, when a company that has installed the LAN 2 or another company that provides information bears the fee necessary for the distribution service, the user who has the portable terminal needs to bear the fee when using the information. There is no.

It should be noted that the distribution server S has a moving closed space of LA.
When reaching the position of N2 ″, communication with the information providing apparatus 10 becomes possible, and information can be newly acquired from the information providing apparatus 10 and stored.

As described above, in the present embodiment, a local area network is constructed in a public area, and a base station capable of communicating with a portable terminal is provided in the local area network. Can significantly promote the use of the mobile terminal, thereby improving the convenience. In particular, even when the local area network is installed in a closed mobile space, the user of the portable terminal can use the mobile terminal without worrying about the deterioration of the communication state such as the reception sensitivity, which is extremely convenient.

FIG. 3 is a block diagram showing another embodiment of the present invention. In the present embodiment, the present invention is applied to an information providing service in a train.

On the LAN 20, a plurality of wireless base stations 21 to 26, a distribution server 27, a train wireless communication station 28, a wireless communication station 29, and an information display device 30 are connected. FIG.
5 is an explanatory diagram showing an actual arrangement state of each component on the LAN 20.

On the train 31, there is a train radio communication station 28.
And a wireless communication station 29. The train wireless communication station 28 and the wireless communication station 29 correspond to the information providing device in FIG. The train radio communication station 28 is a radio station for so-called ordinary train radio, and communicates with a base station (not shown) of a railway company that controls the operation of the train 31 to check the operation status and accident information. Sends and receives information on operation.

The wireless communication station 29 is a receiving station for wireless communication such as fixed wireless access. Fixed wireless access stations are located at specific stations on the train line (for example, starting and ending stations,
Or, it is arranged at a garage station or the like, and distributes information to be distributed in the train to the wireless communication station 29 in a timely manner. The wireless communication station 29 can receive information provided by various carriers.

FIG. 5 shows the vicinity of the left middle door 33 in the train 31 of FIG. The user holding the mobile terminal described below,
It moves inside and outside the train 31 through each door provided on the train 31. A wireless base station and an information display device are provided near each door. For example, the left middle door 33 shown in FIG. 5 is arranged with the front and rear seats open, and a route map is provided at the top. In the present embodiment, the wireless base station 23 and the information display device 30 are provided near the route map above the left middle door 33.

The radio base station may be placed at any position on the train 31 as long as the wireless LAN has a good communication state with the portable terminal on the train 31. Also, the number of wireless base stations provided in one vehicle of a train can be appropriately set according to the communication state and the like.

The information display device 30 has a liquid crystal screen and can display various information. Radio base stations 21 to 2
6 can communicate with a portable terminal by wireless LAN. 4 and 5, cables and the like constituting the LAN 20 are not shown.

For example, on the ceiling (not shown) of the train 31,
A distribution server 27 is provided. As described above, these wireless base stations 21 to 26, the distribution server 27, the train wireless communication station 28, the wireless communication station 29, and the information display device 30
The local area network 20 is connected via a cable (not shown). Note that the train wireless communication station 28 may be connected to the distribution server 27 via an electric communication line different from the LAN 20.

In the present embodiment, the distribution server 27
Is provided with information received from outside by the train radio communication station 28 and the radio communication station 29, and accumulates the information.

FIG. 6 is a block diagram showing a specific configuration of the distribution server 27 in FIG.

The distribution server 27 includes a train radio communication station 28
Also, various information is supplied from the wireless communication station 29. The distribution server 27 is provided to facilitate the acquisition of user information.
Various information is stored in a database.

The distribution server 27 has an Ethernet (interface) I / F 43. Ethernet I
The / F 43 is connected to a cable (not shown) of the LAN 20, outputs data flowing on the cable to the communication processing unit 44, and sends data from the communication processing unit 44 to the cable. The communication processing unit 44 performs a predetermined communication process on data to be transmitted and received. The communication processing unit 44 outputs the data input from the Ethernet I / F 43 to the user ID confirmation unit 50, and via the display screen processing unit 45, the news storage unit 47, the transfer guidance storage unit 48, and the accident information storage unit 49. Output to

The communication processing section 44 arranges and stores the input data for each type. That is, the communication processing unit 44
When the input data is based on news, the input data is supplied to the news storage unit 47, and when the input data is related to transfer guidance, the input data is supplied to the transfer guidance storage unit 48.
If it is related to accident information, the accident information storage unit 4
9. The storages 47 to 49 store the supplied information.

The display screen processing section 45 converts the information read from each of the storage sections 47 to 49 into a display format of the portable terminal and outputs the information to the communication processing section 44.

The user ID confirming section 50 confirms an ID for identifying a portable terminal or a user of the portable terminal, which will be described later, and provides the communication processing section 44 with information on the user ID of the portable terminal that is transmitting and receiving. Thereby, the communication processing unit 44
Communication processing for each user can be performed. Note that I
D is a number capable of uniquely identifying (distinguish) a mobile terminal, and has a different ID number for each mobile terminal.

The display screen processing unit 45 receives an input by voice input from the user's portable terminal through the Ethernet I / F, and the voice confirmation unit 46 processes the information input from the display screen processing unit 45. The voice is recognized and reading of information from the transfer guidance accumulating unit 48 is controlled.

The train radio I / F 41 is connected to the train radio communication station 28 via an electric communication line (not shown), and supplies information from the train radio communication station 28 to the accident information storage unit 49 for storage. It has become.

In the present embodiment, information is provided from the radio base stations 21 to 26 arranged in the train to the portable terminal possessed by the user on the train. As a communication medium in this case, a wireless LAN is suitable. In the present embodiment, description will be made assuming that Bluetooth (Bluetooth) is adopted as the wireless LAN.

[0062] Bluetooth is described in detail on a site on the Internet (URL http://www.bluetooth.com). Bluetooth is a wireless system that is expected to be widely built into mobile devices in the near future,
It is responsible for short-range wireless communication.

Next, the operation of the embodiment configured as described above will be described with reference to FIGS. FIG.
FIG. 8 is an explanatory diagram for explaining a user operation in a train, FIG. 8 is a flowchart for explaining an operation of the present embodiment, and FIG. 9 is a display screen 5 of the information display device.
FIG. 10 is an explanatory diagram showing a display example of FIG. 5, and FIG. 10 is an explanatory diagram showing a display example on the display screen 56 of the mobile terminal.

Now, it is assumed that the wireless base stations 21 to 26 are, for example, Bluetooth base stations. Also,
As shown in FIG. 7, the user 51 riding in the train 31
Communicates with the wireless base station 23 disposed near the left middle door 33 using the portable terminal 52.

An information display device 30 is installed in the train, and information such as news and weather forecast is provided for an unspecified number on the display screen. On the display screen of the information display device 30, as shown in FIG. 9, a news display is displayed on the upper side of the screen. As shown in FIG. 9, information indicating that information is being delivered to the mobile terminal, information on (at least part of) the information being delivered, and the like are displayed on the upper and lower portions of the display screen of the information display device 30. Is also displayed.

The user can know the information that can be distributed to the portable terminal 52 by referring to the display screen of the information display device 30. Further, the user can know what information can be distributed by referring to the display screen of the portable terminal 52.

Next, the entire sequence of such information distribution will be described with reference to FIG. FIG. 8 assumes that a news display similar to the provision of a news program by a liquid crystal panel currently performed on some trains is performed by the information display device 30, and further to each mobile terminal (for each individual). (Independent) to provide more detailed information.

First, the user (train passenger) knows the news overview from the display on the information display device 30 shown in FIG. On the screen, “More detailed information on the information currently displayed on the information display device 30 is displayed by BT (Bluetooth).
And that the transfer information can be distributed as other information.

Here, it is assumed that a certain user 51 takes out the portable terminal 52 and performs an operation for delivering information to the portable terminal 52. Basically, the steps from turning on the power of the portable terminal 52 to displaying the initial screen are automatically performed. Mobile terminal 5
2 is configured to be able to communicate with a wireless base station using Bluetooth, and is provided with predetermined operation buttons and the like for communicating with the wireless base station. It is assumed that

The user performs, for example, an operation for transmitting news to the own device (portable terminal 52) by using a specific button of the mobile terminal 52. Note that the wireless base stations 21 to 26 may automatically recognize that the mobile terminal is within the communication range and automatically start displaying the initial screen of news. In this case, No user operation is required for news transmission.

When the user 51 performs a news transmission operation using the portable terminal 52, an operation of sending a news initial screen to the portable terminal 52 is started. That is, first, in step S1 of FIG. 8, the portable terminal 52 starts a service detection procedure for determining whether or not a base station for news distribution exists in a nearby communication area.

In the example of FIG. 8, the "news distribution service" is used. However, for example, a "WAP service", a "compact HTML (C-HTML) service", or the like for displaying information for a browser of a portable terminal. Service detection of whether or not to perform a content delivery service may be performed.

The service detection request from the portable terminal 52 is
It is received at the wireless base station 23. On the other hand, the radio base station 23 provides a news distribution service,
A service response is sent to the portable terminal 52 (step S2)
).

Next, in step S3, the portable terminal 5
2 requests the wireless base station 23 for news distribution. In response, the wireless base station 23 determines in step S4
Request the portable terminal 52 for an ID. The mobile terminal 52 returns its own ID (ID = X in FIG. 8) to the wireless base station 23 (step S5).
Makes an inquiry to the distribution server 27 as to whether the portable terminal having the received ID (= X) is a portable terminal that has been registered in advance (step S6).

At step S7, distribution server 27 checks whether or not the portable terminal with ID = X has been registered as a user. That is, the user ID confirmation unit 50 of the distribution server 27 searches the internal database to check whether the ID input from the communication processing unit 44 is a registered ID. (Step S8). The distribution server 27 notifies the radio base station 23 of the result of the user registration confirmation.

The ID can be confirmed only when the information service is provided only to registered members in advance, and when the service is freely provided to all mobile terminal owners,
Confirmation of the ID can be omitted.

The communication between each of the radio base stations 21 to 26 and the distribution server 27 employs, for example, the TCP / IP protocol. Most of recent computer communication applications (in this case, a news distribution processing application) are based on TCP / IP, so that system construction can be easily performed by adopting TCP / IP on LAN 20. It is possible. As described above, the communication between the mobile terminal and the wireless base station employs Bluetooth, which is local communication without passing through a provider (such as an Internet service provider or a communication carrier). No communication charges are incurred. In addition, as for the service usage fee, when the train operating company pays a fee to another information provider, the passenger does not need to bear any fee for providing the service.

If the user registration is confirmed, the radio base station 23 makes an inquiry about the display format in the next step S9. At present, general mobile terminals physically have a liquid crystal screen and software as a browser, and are capable of character display and multimedia display. However, the description method of the display content in the portable terminal is H
TML, Compact HTML (C-HTML), WAP
It is the present situation that various methods such as are abundant. Therefore, the wireless base station inquires which display method the mobile terminal can display.

The inquiry about the display format from the wireless base station 23 is received by the portable terminal 52. Portable terminal 52
Transmits a response about the display format to the wireless base station 23. In FIG. 8, a description will be given assuming that the portable terminal 52 employs WAP as a display format.

The radio base station 23 transmits a news distribution request to the distribution server 27 in correspondence with the display format WAP (step S11). In response to this request, the distribution server 27 checks and reads out information on the initial screen of the news from the news storage unit 47 (step S12), and outputs it to the display screen processing unit 45. The display screen processing unit 45 converts the information from the news storage unit 47 into the WAP format (step S
13), and sends the converted news screen information to the wireless base station 23 for the portable terminal with ID = X (step S1).
Four).

In step S15, the wireless base station 23 transmits the received news screen information to the portable terminal 52 via the wireless LAN. The information received by the mobile terminal 52 is information in which screen display information is described in a WAP format, and the mobile terminal 52 displays a news screen (in this case, an initial screen) based on the received information.

FIG. 7 shows an example of such an initial screen (menu display) displayed on the portable terminal. In the example of FIG. ~ 6. Items up to are displayed. By selecting the item number, the user can acquire information interactively and independently of other mobile terminals. For example, if "1. News" is selected, it is possible to acquire detailed information of the news currently displayed on the display screen. Further, for example, when "4 transfer guidance" is selected, information about the arrival time of the train on board, or accident-related information when a train is delayed when an accident occurs, and the like can be obtained. .

[0099] These pieces of information are stored in the distribution server 27.
It is stored in the news storage unit 47, transfer information storage unit 48, accident information storage unit 49, etc., and is converted to the WAP display format according to the request from the user and distributed to each mobile phone via Bluetooth. Is done.

For example, it is assumed that the user wants to obtain detailed information of news. The command based on the user's selection operation is transmitted from the mobile terminal 52 to the wireless base station 23, and the wireless base station 23 transmits the user's request to the distribution server 27. The distribution server 27 reads the detailed information from the news storage unit 47, converts the detailed information into the WAP format by the display screen processing unit 45, and outputs the WAP format. Thus, the detailed information of the news is transmitted from the wireless base station 23 to the portable terminal 52, and the details of the news are displayed on the display screen of the portable terminal 52.

By the way, the user gives the transfer guidance and the estimated arrival time of the train on the train to the specific station by the distribution server 27.
It is expected that the work of inputting a transfer station, a destination station, and the like to the portable terminal when asking about is relatively complicated. Also,
Considering that the input device is a mobile terminal (a typical example is a mobile phone), it is more efficient to convert the input operation into voice. In this case, the convenience of the user can be improved by achieving the voice input function only by adding the function on the distribution server 27 side.

In the example shown in FIG. 6, the distribution server 27 includes a voice confirmation unit 46. The voice confirmation unit 46 recognizes the voice of the user and identifies information to be distributed. The transfer guidance accumulating unit 48 outputs information to be distributed according to the instruction of the voice checking unit 46. This information is supplied to the display screen processing unit 45, converted into the WAP format, and transmitted from the wireless base station to the portable terminal. Thus, the request for displaying the transfer guidance can be made by voice.

As described above, in the present embodiment, various types of information can be obtained interactively by simple operations without using a public communication network, simply by bringing a portable terminal into a train.

In the above-described embodiment, a case has been described in which a distribution server or the like is arranged in (behind the ceiling of) each vehicle. However, a plurality of vehicles share a distribution server or a wireless communication station, and the like. May be connected by a LAN spanning a plurality of vehicles.

Further, in the present embodiment, an example of the information providing service in the train has been described, but it is apparent that the present invention can be similarly applied to other public transportation such as a bus and a taxi.

[0089]

As described above, according to the present invention, interactive transmission and reception of various types of information between a device on the information provider side and a personal device using a wireless transmission path without the intervention of a communication provider. Has the effect that it can be made possible.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment according to the present invention.

FIG. 2 is an explanatory view showing another embodiment of the present invention.

FIG. 3 is a block diagram showing another embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an actual arrangement state of each component on the LAN 20 in FIG. 3;

FIG. 5 is an explanatory diagram showing an actual arrangement state of each configuration on the LAN 20 in FIG. 3;

FIG. 6 is a block diagram showing a specific configuration of a distribution server 27 in FIG.

FIG. 7 is an explanatory diagram for explaining a user operation in a train.

FIG. 8 is a flowchart for explaining the operation of this embodiment.

FIG. 9 is an explanatory diagram showing a display example of a display screen of the information display device.

FIG. 10 is an explanatory diagram showing a display example on the display screen of the mobile terminal.

[Explanation of symbols]

1 ... LAN, 9 ... Information providing device, S ... Distribution server, B1
... B5... Wireless base stations, T1 to T3.

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Claims (10)

[Claims] 1. A wireless base station that can communicate by a wireless LAN between a distribution server in which distribution information is stored in a database and stored therein and a mobile terminal in a predetermined closed space and transmits the distribution information to the mobile terminal. And a local area network connecting the distribution server and the wireless base station. 2. A movable local area network, a distribution server connected to the local area network and storing distribution information, a predetermined closed network connected to the local area network and moving with the local area network. An information distribution system, comprising: a wireless base station that can communicate with a mobile terminal in a space via a wireless LAN and transmits the distribution information from the distribution server to the mobile terminal. 3. A checking means provided on the local network for checking whether an ID transmitted from the mobile terminal is already registered, and a checking means provided on the network, wherein the ID is registered. 3. The information distribution system according to claim 1, further comprising a distribution control unit that distributes the distribution information only when the confirmation is made by the confirmation unit. 4. The information distribution system according to claim 1, wherein the distribution server outputs the distribution information after converting the distribution information into a display format corresponding to the portable terminal. 5. The information processing apparatus according to claim 1, further comprising: an information display unit provided in the predetermined closed space to display a content of the distribution information and whether or not the distribution is possible. Information distribution system described. 6. The information distribution system according to claim 1, wherein the distribution server distributes distribution information based on information received by the wireless base station from the mobile terminal. 7. The distribution server displays a list of distribution information that can be distributed on a display screen of the mobile terminal, and receives a signal based on a user's selection operation from the wireless base station to distribute the distribution information. 7. The information distribution system according to claim 6, wherein: 8. The information distribution system according to claim 2, wherein the distribution information includes information on movement of the moving predetermined closed space. 9. The information distribution system according to claim 8, wherein the information on the movement includes at least one of information on transfer guidance and information on operation. 10. The distribution server according to claim 1, wherein the distribution server stores information provided from a predetermined information providing unit not connected to the local area network via a predetermined telecommunication line. 2. The information distribution system according to any one of 2.