JP2005051490A - Information service system and its method, onboard terminal, and information center - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information service system by which pull type information communication is controlled at an information center. <P>SOLUTION: The pull type information service system provides information to an onboard terminal from the information center in accordance with a request from the onboard terminal mounted on a vehicle. When the request from the onboard terminal is required, the information center transmits a short message with given contents to the onboard terminal (S118). The short message contains a command for making the onboard terminal raise the request. The onboard terminal received the short message (S96) interprets the contents of the short message (S98), and requests information addressed to the information center (S100). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an information service system and method for providing information from an information center in response to a request from an in-vehicle terminal, an in-vehicle terminal, and an information center.

  In general information service systems, a pull type information service in which a user actively acquires necessary information is often used. In this case, when a user operates a terminal device, a request for information is transmitted from the terminal device to the information center, and information corresponding to the request is provided from the information center to the terminal. Such a pull-type information service system is often used because a general-purpose pull-type information service, for example, WWW (World Wide Web) has already been established.

  Usually, in the pull-type information service, when information is required, the user operates the terminal device according to a predetermined procedure to transmit a request from the terminal device to the information center. The information center provides information according to the request. Therefore, the user can obtain information by operating the terminal device when information is required.

  However, in the case of an in-vehicle terminal mounted on a vehicle, a driving operation is often performed. Therefore, there is a demand for reducing the operation on the terminal device as much as possible. In addition, when the user is unfamiliar with the operation of the terminal device, it is desirable that the information center can control the distribution of information. Furthermore, the timing of the user's terminal operation may deviate from the timing at which information can actually be provided, and it may not be possible to respond only by a request issued at the time of terminal operation.

  Therefore, an object is to provide an information service system capable of controlling pull-type information communication in an information center.

  An information service system of the present invention is a terminal mounted on a vehicle, and includes an in-vehicle terminal that makes a request for information to an information center, and an information center that provides information to the in-vehicle terminal in response to a request from the in-vehicle terminal. In an information service system that performs pull-type information communication as viewed from the in-vehicle terminal, the information center pushes a command for requesting the in-vehicle terminal to request information when it wants to start information communication in the pull type. The in-vehicle terminal has a command executing means for starting pull-type information communication by requesting information when a command is received, and the information center transmits the command. It is characterized in that sometimes pull-type information communication can be controlled.

  In a preferred aspect, the information center has means for determining whether or not the command execution by the in-vehicle terminal has succeeded after transmitting the command, and when determining that the command execution has failed, transmits the command again. . The command transmitted from the information center is preferably a command that causes the in-vehicle terminal to make a request periodically.

  In another preferred aspect, the information center provides the in-vehicle terminal with a setting file that is set to periodically make a request to the information center when there is an information request operation from the user in the in-vehicle terminal. And a determination means for determining whether or not the provision has been normally performed. When it is determined that the provision has not been normally performed, a command is transmitted via the transmission means. The command transmitted from the information center is preferably a command for causing the in-vehicle terminal to request provision of a setting file. Here, the information requesting operation may be an operation for requesting the start of a support service in which a supporter in the information center performs an operation to be performed on the in-vehicle terminal and provides information obtained as a result to the in-vehicle terminal. desirable. In addition, it is desirable that command reception and transmission be performed using a short message service.

  Here, the pull type information communication refers to a type of information communication in which the information center provides information in response to a request from the in-vehicle terminal. For example, it is like WWW (World Wide Web). On the other hand, push-type information communication refers to push-type information communication that enables information distribution from an information center to an in-vehicle terminal without a request from the in-vehicle terminal. Therefore, even if it is a type of information communication that can be bidirectionally communicated, such as a short message or e-mail, even if there is no request from the in-vehicle terminal, information can be distributed from the information center to the in-vehicle terminal. To do.

  Another information service system of the present invention includes an in-vehicle terminal that requests information from the information center based on a predetermined program, and an information center that provides information to the in-vehicle terminal only when there is a request from the in-vehicle terminal. In the information service system, the information center is connected to the in-vehicle terminal based on the telephone number, and has a changing means for changing the program of the in-vehicle terminal, and the information center can control the communication state from the in-vehicle terminal. And

  The information center searches for necessary information according to a request from the user and stores it in a predetermined area, and the in-vehicle terminal makes a request for information by accessing the predetermined area based on a predetermined program. In this case, the changing means is preferably means for changing the program so as to access the predetermined area when it is determined that there is no access to the predetermined area of the in-vehicle terminal. Further, the changing means is preferably means for connecting to the in-vehicle terminal based on the telephone number and transmitting a command for changing the program to the in-vehicle terminal.

  According to the present invention, pull-type information communication can be controlled at the information center.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a configuration diagram of an information service system 10 according to an embodiment of the present invention. The information service system 10 includes an in-vehicle terminal 12 and an external terminal 16 that request information, and an information center 14 that provides information.

  The in-vehicle terminal 12 includes a main body 20, a data communication module 24 for enabling communication with the information center 14, and a GPS 26 (Global Positioning System) for detecting a vehicle position. In addition, a mobile phone 22 which is a means for communicating with an operator described later can be attached.

  The main body 20 is the main body of the in-vehicle terminal 12 and is provided in the vicinity of the driver's seat in the passenger compartment. This includes a control unit that controls the entire in-vehicle terminal 12, a display unit that displays information, an operation unit for operating the in-vehicle terminal, and the like. A storage unit such as a RAM or an SD memory card is also provided. Various programs and data are stored in this storage unit. The stored programs include browser software for communicating with an information center, navigation software for guiding a vehicle route, and mail software for managing transmission and reception of e-mails. The stored data includes an ID number assigned to identify a terminal, map data used by navigation software, and the like.

  The data communication module 24 is a communication module for realizing communication with the information center 14. The data communication module 24 can access the URL address of data held by the information center 14 via the base station 18. Thereby, the in-vehicle terminal 12 can receive a WWW service from the information center 14. The data communication module 24 also has a short message service function, and includes an SM receiver 25 (not shown) that can receive a short message transmitted based on a telephone number held by the in-vehicle terminal 12. I have. The short message is sent to the data communication module 24 via the base station 18 from the SM transmission unit 35 described later based on the telephone number of the data communication module 24. This communication is performed using a control channel which is an empty area other than the voice area of the telephone line.

  By the way, since the data communication module 24 is appropriately assigned a plurality of non-fixed IP addresses (by DHCP), it is difficult to grasp the IP address of the data communication module 24 for each in-vehicle terminal 12 on the information center 14 side. ing. On the other hand, in the information center 14, the contractor and the telephone number of the data communication module 24 are registered in association with each other when the information service is contracted. Therefore, it is easy to grasp the telephone number of the data communication module 24 of each in-vehicle terminal 12 on the information center 14 side. Therefore, a push-type service from the information center 14 to the in-vehicle terminal 12 becomes possible by transmitting a short message from the center side based on the telephone number. In this embodiment, a communication module dedicated to the in-vehicle terminal is used. However, a general-purpose communication medium such as a mobile phone may be used as long as communication with the information center 14 is realized.

  The GPS 26 detects the position of the vehicle, and detects the position of the vehicle using radio waves distributed from GPS satellites. The detected position information is used for navigation software and is sent to the information center 14 in conjunction with the data communication module 24. The information center 14 provides an information service according to the sent location information.

  The mobile phone 22 is a means for communicating with an operator existing in the information center 14 and is detachable from the in-vehicle terminal 12. When the mobile phone 22 is attached to the main unit 20, the mobile phone 22 is connected to a dedicated connection port provided in the main unit 20. The connected mobile phone 22 can be controlled by the main unit 20. Therefore, it is possible to make a call in conjunction with the data communication module 24 and various applications. In this embodiment, a detachable mobile phone is used. However, a phone fixed to the in-vehicle terminal 12 or other communication means may be used as long as a call with the operator can be made. In addition, if the user's request can be easily transmitted to the support center, the call means is not necessarily required.

  The system 10 is basically used on the in-vehicle terminal 12, but may be used on another external terminal 16. Examples of the external terminal 16 include a mobile communication medium such as the PDA 54 and the mobile phone 52, and a PC 50 (personal computer) connected to a network.

  The information center 14 includes a server unit 34 that manages various types of information, an information processing unit 32 that processes information in response to a request from the in-vehicle terminal 12, and an information communication unit for realizing communication with the in-vehicle terminal 12. 30. Moreover, it has the support center 36 for supporting a user's operation.

  The server unit 34 includes a personal server 38 and a shared server 40. The personal server 38 is a server provided exclusively for each user. In this personal server 38, menu settings, maintenance information, history information, and the like according to each user's preference are recorded. The personal server 38 can be accessed from either the in-vehicle terminal 12 or the external terminal 16 if the predetermined ID and password match. Therefore, the user can share the same information regardless of the terminal type.

  The shared server 40 is a server shared by all users, in which various contents provided by the system 10 are recorded. The shared server 40 may be provided in the same center as the center where the personal server 38 is located, or may be provided from another center via communication.

  The support center 36 is for assisting user operations. There is an operator in the support center 36, and when there is a request from the user, the operator performs an operation on behalf of the in-vehicle terminal 12 for the operator. The user's request is transmitted to the operator via the mobile phone 22 and the operator phone 42. The support center 36 has an SM transmitter 35 for transmitting a short message, and transmits a short message having a predetermined content to the in-vehicle terminal 12 via the telephone base station 18 to a predetermined telephone number. It is possible. In this embodiment, the operator is a human, but an electric device that can automatically respond may be used as long as the operator can perform a substitute operation according to the user's request.

  The information communication unit 30 enables communication with the in-vehicle terminal 12 and provides information in response to a request from the in-vehicle terminal 12. A request for information from the in-vehicle terminal 12 is transmitted to the information processing unit 32 via the data communication module 24 and the information communication unit 30.

  The information processing unit 32 includes a CPU, a ROM, a RAM, and the like, and controls the operation of the server unit 34 and the information communication unit 30 according to a request from the in-vehicle terminal 12 by executing a program. When there is a request for information from the various terminals 12 and 16, the information processing unit 32 confirms the ID and password of the terminal and determines which user the request is from. Then, information processing is performed using the determined personal server 38 for the user.

  Next, the flow of information service in the system 10 will be described. Here, the flow of information services when using navigation software is taken as an example.

  When the user wants to receive information services such as route guidance by the navigation software, the user starts the navigation software by operating the in-vehicle terminal 12 before starting driving the vehicle.

  At this time, various requests for information are transmitted from the in-vehicle terminal 12 to the information center 14. When a request is transmitted from the in-vehicle terminal 12 via the data communication module 24 and the information communication unit 30, the information processing unit 32 identifies the user. This is specified from the ID assigned to each in-vehicle terminal 12. Information selected and processed from the shared server 40 and the user's personal server 38 is provided upon request.

  Information provided from the personal server 38 includes spot information previously set by the user, for example, favorite store information and home location information. Information provided from the shared server 40 includes general spot information, for example, gas station or restaurant location information, store information, and the like.

  A map reflecting the spot information provided from the information center is displayed on the display screen of the in-vehicle terminal 12. For example, when route guidance from the current location to a predetermined destination is necessary, the destination is set by further operating the in-vehicle terminal 12. The set destination is sent to the information center 14, and the information center 14 provides route information calculated in consideration of the distance and the congestion situation. When satisfied with the provided route, the route is set and actual driving is started.

  Normally, a map (navigation screen) around the vehicle position is displayed on the display screen of the in-vehicle terminal 12 that is traveling. This is to realize safe traveling. However, there is a case where it is desired to know information collected by other applications even while traveling, that is, while a navigation screen is being displayed. For example, there are cases where it is desired to know whether or not an e-mail has been received and its contents even while traveling.

  In such a case, the mail software is activated internally but is not displayed on the screen. When a mail is received, the content of the e-mail is read out by a speaker provided in the in-vehicle terminal 12 or displayed on an auxiliary screen so as not to disturb the traveling. The screen of the mail software that is not displayed at this time or displayed on the auxiliary screen is temporarily stored in the storage unit of the in-vehicle terminal 12. And when confirming the content of information again at the time of a stop etc., this memorized screen can be called and confirmed.

  Next, a support service provided by the system 10 will be described. This is because the support center operator performs part of the operation of the in-vehicle terminal 12 on behalf of the user when the operation method of the in-vehicle terminal 12 is not known or when the user cannot operate the in-vehicle terminal 12 because of traveling. Is. For example, if the user wants to search for a restaurant near the destination but does not know the method, the operator searches for the restaurant on behalf of the user, and provides the result to the in-vehicle terminal 12.

  An image of this service flow is shown in FIG. The user notifies the center operator of the operation he / she wants to perform on the mobile phone 22 attached to the in-vehicle terminal 12 (L60). For example, “I want to know restaurants around my destination” or “I want to set Tokyo Tower for my purpose”. Receiving this, the operator operates the information processing unit on behalf of the user to obtain predetermined information (L62). For example, information such as “restaurant information around the destination (latest information)” and “setting information when setting Tokyo Tower as the destination” is acquired. The information obtained here includes the latest information that cannot be obtained by the in-vehicle terminal 12. The acquired information is stored in the user's personal server 38 (L64). The in-vehicle terminal 12 acquires information stored in the personal server 38 (L66). The main body 20 performs setting change and screen display according to the obtained information. By providing the information obtained by the proxy operation to the in-vehicle terminal 12 in this manner, the same result as that obtained by the user himself / herself can be obtained.

  Next, the flow of this support service will be described in more detail with reference to FIG.

  When requesting the start of the support service, the user presses an “inquiry” button provided on the in-vehicle terminal 12. When the inquiry button is pressed, the in-vehicle terminal 12 transmits a support service start notification to the information center 14 (S72), and the information center 14 receives this (S110). And the information center 14 specifies a user from ID of the vehicle-mounted terminal 12. FIG.

  Next, the in-vehicle terminal 12 requests a schedule file (S74). The request for the schedule file is programmed in advance in the in-vehicle terminal 12, and the in-vehicle terminal 12 makes a request for the schedule file based on this program. The information center 14 provides a schedule file in response to the request (S112).

  Here, the schedule file is a definition file for causing the in-vehicle terminal 12 to periodically request information from the information center 14. Specifically, it is a file described in CDF (Channel Definition Format), and is a file for setting the in-vehicle terminal 12 to access a predetermined area of the personal server 38 with a one-minute sensation. That is, it is a file for causing the in-vehicle terminal 12 to poll a predetermined area of the personal server 38.

  The reason for performing such polling will be described. Information acquired by the operator's proxy operation in the support service is stored in a predetermined area of the personal server 38. However, at the present stage when the “inquiry” button is simply pressed, the result information of the proxy operation does not yet exist in the personal server 38, and it is unknown when it exists. Therefore, a request for information (access to a predetermined area) is periodically made from the in-vehicle terminal, and the information center returns information (result information of proxy operation) that can be provided for the request, If not, return that fact.

  Here, a method of providing the information to the in-vehicle terminal 12 when the information obtained by the proxy operation is stored in the personal server 38 can be considered, but this has several problems. First, in this embodiment, a pull-type information service system using WWW is used. Therefore, information cannot be automatically transmitted from the information center 14 to the in-vehicle terminal 12 without a request from the in-vehicle terminal 12. A request from the in-vehicle terminal 12 is always required.

  There is also a method of providing information by sending a request from the in-vehicle terminal 12 when the information is stored in the personal server 38. However, in general, in order to send a request to the in-vehicle terminal 12, the user needs to perform some terminal operation. Such an operation is cumbersome for the user. In particular, in the in-vehicle terminal 12 accompanied with the driving operation, such an operation is desired to be reduced as much as possible. Even when the driving operation is not being performed, the timing at which the result information of the proxy operation is stored in the personal server 38 is unknown, so the timing of the user's terminal operation is also unknown. Therefore, the user does not know when to operate the terminal.

  For this reason, in the present embodiment, information is provided by causing the in-vehicle terminal 12 to poll a predetermined area of the personal server 38 using the schedule file. Here, it is also conceivable to store a program for performing polling in the in-vehicle terminal 12 without using the schedule file provided from the information center 14 (in response to a request from the in-vehicle terminal 12). If it does so, even if a schedule file is not provided, in-vehicle terminal 12 can start polling automatically. However, complicating the processing of the in-vehicle terminal 12 owned by many users is not preferable in terms of maintenance and management. It is desirable that the information center 14 can collectively manage as much as possible. Therefore, in this Embodiment, the operation | movement of the vehicle-mounted terminal 12 is set with the schedule file.

  The in-vehicle terminal 12 that has acquired the schedule file periodically starts accessing a predetermined area (S78). At this time, when an access (request) is made to the first personal server, the information center 14 changes the access flag to ON (S80). The access flag is a flag indicating the presence / absence of access from the in-vehicle terminal 12, and is OFF before the in-vehicle terminal 12 accesses a predetermined area, and is ON when the access is made.

  Therefore, this access flag is a criterion for determining whether or not the setting by the schedule file is normally performed. That is, when the access flag is ON, the setting by the schedule file is normally performed, and when it is OFF, the setting has failed.

  The in-vehicle terminal 12 periodically accesses the predetermined area after the first access (S82), and confirms the presence / absence of the information data of the result information by the proxy operation (S84).

  On the other hand, after the first access, in parallel with the polling operation, a call is made to the operator telephone 42 (S86, S114). This is automatically called from the mobile phone 22 attached to the in-vehicle terminal 12.

  In addition, the operator of the information center 14 displays the information of the user who made the call. In addition to the terminal ID information of the user and the current vehicle position information, the status of the access flag is also displayed. That is, information indicating whether the in-vehicle terminal 12 has accessed the predetermined area or whether the setting has been normally made by the schedule file is displayed.

  When the access flag is ON, that is, when the setting is normally performed, the operator answers the phone and starts a conversation with the user. The user transmits the operation that the user wants to perform to the operator (S88). The operator operates the information processing unit 32 to satisfy the request, and stores the obtained information in the personal server 38 (S120).

  For example, if the user's request is “I want to know coffee shops around the current location”, the operator searches for coffee shops around the user's vehicle position. The information obtained as a result is stored in the personal server 38. If the user's request is “I want to set Tokyo Station for the purpose”, a setting file for such setting is created and stored in the personal server 38.

  Then, the operator confirms that the information is normally stored in the personal server, and hangs up (S122).

  While the user and the operator are talking, the in-vehicle terminal 12 periodically accesses a predetermined area of the personal server 38 (S82). However, no information exists in the predetermined area of the personal server 38 until the operator saves the information data (S120). Therefore, the in-vehicle terminal 12 repeats access (S84).

  When the information data is saved by the operator, the in-vehicle terminal 12 obtains necessary information (requested information) because it is present. Then, after confirming that the call between the user and the operator has ended (S90), the acquired information data is displayed on the screen (S92), and the process is terminated.

  By the way, since the vehicle-mounted terminal 12 is mounted on a vehicle, it often moves at a high speed. Therefore, the vehicle may exist in an area where the communication status is not good. After a periodic request (polling) has already been set by the schedule file, even if the vehicle is in an area with poor communication, the request is retried until the vehicle moves to an area with good communication. The

  However, when the first schedule file is requested and provided (S74, S112), if the vehicle is in an area where the communication status is poor, the in-vehicle terminal 12 cannot acquire the schedule file. As a result, the in-vehicle terminal 12 cannot make a periodic request (polling).

  In such a case, it is necessary to send a schedule file provision request from the in-vehicle terminal 12 again to acquire the schedule file.

  However, it is not desirable for the vehicle-mounted terminal 12 that accompanies a driving operation as described above to cause the user to perform some operation and to send a request again. Also, it is not desirable to cause the in-vehicle terminal 12 to determine whether or not the schedule file has been successfully acquired, and to make a request again, which complicates the processing of the in-vehicle terminal 12.

  Therefore, a response when the schedule file acquisition fails will be described with reference to FIG. If acquisition of the schedule file fails, a telephone call to the operator is made without access to the first personal server 38 (S86 in FIG. 4). Therefore, the access flag is OFF, and the operator determines that provision of the schedule file has failed.

  In that case, the operator of the information center 14 transmits a short message (SM) having a predetermined content to the in-vehicle terminal 12 based on the telephone number of the in-vehicle terminal 12 using the SM transmission unit 35 (S118). . This short message describes a command for causing the in-vehicle terminal 12 to send a request for providing a schedule file. That is, a command is described that changes the program of the in-vehicle terminal 12 so that the in-vehicle terminal 12 accesses the predetermined area again so as to request the provision of the schedule file again.

  The in-vehicle terminal 12 that has received the short message interprets the content (S96, S98). Based on the command described in the short message, the schedule file provision request is transmitted again (S102).

  Specifically, the URL where the schedule file exists is described in the short message, and the operator encrypts this and transmits it. The in-vehicle terminal 12 that has received this short message accesses the described URL.

  When a schedule file can be acquired by this request, periodic request transmission is set by the file. That is, polling is performed by the in-vehicle terminal 12. When the vehicle-mounted terminal 12 makes the first access, the access flag is turned on (S78, S80). After transmitting the short message, the information center 14 determines again whether the access flag is ON. If it is ON, normal processing is performed as it is.

  On the other hand, there is a case where the schedule file cannot be obtained even by this request for provision of the schedule file (S100). In that case, since the in-vehicle terminal 12 does not access the personal server, the access flag remains OFF. Therefore, the information center 14 transmits a short message again based on the telephone number of the in-vehicle terminal 12. As described above, the information center periodically repeats the determination of the access flag (S116) and the transmission of the short mail (S118) until the access flag is turned on. If the access flag ON is confirmed, normal processing is performed thereafter.

  As described above, a request can be transmitted from the in-vehicle terminal 12 by transmitting a command from the information center 14 to the in-vehicle terminal 12 using a short message. That is, the information center can manage the start timing of pull-type information communication, the request contents, and the like. Therefore, information can be provided without requiring the user to perform a new operation. In addition, since there is no complicated processing in the in-vehicle terminal, the management and maintenance of the in-vehicle terminal becomes easy.

  In the present embodiment, the operator confirms access to the information center 14 of the in-vehicle terminal 12 and transmits a short message. However, the operator automatically confirms the status of the access flag and transmits the short message. You may do it.

  In the present embodiment, the periodic request setting by the schedule file is basically used, and a short message is used when the setting fails. However, a short message may be transmitted at the time when the result information of the proxy operation is stored in the personal server 38 by the operator without setting the schedule, and a request for the result information of the proxy operation may be transmitted.

  In addition, as another method, when the operation that the user wants to perform is a simple operation (for example, simple destination setting), a command for causing the terminal to perform the operation is transmitted as a short message. You may do it.

  In this embodiment, a command (short message) is transmitted for resetting polling in the support service, but the command may be transmitted in other situations. For example, the vehicle position information is periodically transmitted from the in-vehicle terminal 12 to the information center 14. This is done by setting with a schedule file. However, if it is determined that this setting has not been made properly, a command (short message) may be transmitted to obtain a schedule file that can be set appropriately.

  Further, in this embodiment, a short message is used because it is general-purpose and easy to use. However, as long as the information can be provided without a request from the in-vehicle terminal, the command may be transmitted by other means. Good.

It is a block diagram of the information service system which is embodiment of this invention. It is an image figure of a support service. It is a flowchart which shows the flow of a port service. It is a flowchart which shows the flow of a support service.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Information service system, 12 In-vehicle terminal, 14 Information center, 20 Main body part, 22 Mobile phone, 24 Data communication module, 25 SM receiving part, 30 Information communication part, 32 Information processing part, 34 Server part, 35 SM transmission part, 36 Support Center, 38 Personal Server, 40 Shared Server, 42 Operator Telephone.

Claims (15)

A vehicle-mounted terminal that is mounted on a vehicle and requests information from the information center;
An information center that provides information to the in-vehicle terminal in response to a request from the in-vehicle terminal;
In an information service system that performs pull-type information communication as seen from the in-vehicle terminal,
The information center has a transmission means for transmitting a command for requesting information to the in-vehicle terminal to the in-vehicle terminal when the information center wants to start information communication in the pull type,
The in-vehicle terminal has a command execution means for starting pull-type information communication by making a request for information when receiving a command,
An information service system characterized in that an information center can control pull-type information communication at the time of command transmission. The information service system according to claim 1,
The information center has means for determining whether or not the command execution by the in-vehicle terminal succeeds after transmitting the command,
An information service system that transmits a command again when it is determined that command execution has failed. The information service system according to claim 1 or 2,
Information center
A providing means for providing the in-vehicle terminal with a setting file that is set to periodically request the information center when there is an information request operation from the user in the in-vehicle terminal;
Determination means for determining whether or not the provision has been successfully performed;
And an information service system that transmits a command via a transmission means when it is determined that the operation is not normally performed. The information service system according to claim 3,
An information service system, wherein the command transmitted from the information center is a command for requesting the in-vehicle terminal to provide a setting file. The information service system according to claim 3 or 4,
The information request operation is an operation for requesting the start of a support service in which a supporter in an information center performs an operation to be performed on the in-vehicle terminal and provides information obtained as a result to the in-vehicle terminal. Information service system. The information service system according to any one of claims 1 to 5,
An information service system characterized in that a command is received and transmitted using a short message service. In a terminal for a pull-type information service system mounted on a vehicle, where information is provided from the information center by making a request for information to the information center,
A command transmitted to the in-vehicle terminal in a push type when the information center wants the in-vehicle terminal to start pull-type information communication, and a receiving means for receiving a command for requesting information;
An in-vehicle terminal comprising: command execution means for starting a pull-type information communication by making a request for information based on the command. An information center for a pull-type information service system that provides information to an in-vehicle terminal in response to a request for information from the in-vehicle terminal mounted on the vehicle,
When it is desired to start pull-type information communication with the in-vehicle terminal, it has a transmission means for transmitting a command for requesting information to the in-vehicle terminal in a push type,
An information center characterized in that the information center can control the start of pull-type information communication. In the pull-type information service method that requests information from the in-vehicle terminal mounted on the vehicle to the information center and provides information from the information center to the in-vehicle terminal in response to the request,
When you want to start pull-type information communication,
A push command is sent from the information center to the in-vehicle terminal to request information from the in-vehicle terminal.
When the in-vehicle terminal that receives the command requests information from the in-vehicle terminal to the information center based on the command, pull-type information communication is started,
An information service method characterized in that an information center can control pull-type information communication when a command is transmitted. An in-vehicle terminal that requests information from the information center based on a predetermined program;
An information center that provides information to the in-vehicle terminal only when there is a request from the in-vehicle terminal;
In an information service system having
The information center is connected to the in-vehicle terminal based on the telephone number, and has a changing means for changing the program of the in-vehicle terminal,
An information service system characterized in that an information center can control a communication state from an in-vehicle terminal. The information service system according to claim 10,
The information center searches for necessary information according to the request from the user, stores it in a predetermined area,
When an in-vehicle terminal makes a request for information by accessing a predetermined area based on a predetermined program,
An information service system, wherein the changing means is means for changing a program so as to access a predetermined area when it is determined that there is no access to the predetermined area of the in-vehicle terminal. The information service system according to claim 10 or 11,
The information service system characterized in that the changing means is means for connecting to the in-vehicle terminal based on the telephone number and transmitting a command for changing the program to the in-vehicle terminal. In the information center that provides information to the in-vehicle terminal only when the in-vehicle terminal requests information based on a predetermined program,
The information center is connected to an in-vehicle terminal based on a telephone number, has an changing means for changing a program of the in-vehicle terminal, and can control the communication state of the in-vehicle terminal. An in-vehicle terminal that requests information from the information center based on a predetermined program,
The in-vehicle terminal is characterized in that the program is a program that the information center can connect to and change from the in-vehicle terminal based on the telephone number. In the information service system method of requesting information from the in-vehicle terminal to the information center based on a predetermined program and providing information from the information center to the in-vehicle terminal only when there is a request from the in-vehicle terminal,
An information service method characterized in that an information center has a changing step of connecting to an in-vehicle terminal based on a telephone number and changing a program of the in-vehicle terminal, and the information center can control a communication state from the in-vehicle terminal.

Images