JP3980449B2 - Client / server type vehicle information communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a client / server type vehicle information communication system capable of transmitting and receiving data between a client terminal and a server in a vehicle.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, speech recognition is used for place name search, destination setting, and the like in automobile navigation devices and the like. For example, Japanese Patent Laid-Open No. 2000-105681 discloses voice recognition means and a voice recognition table on the in-vehicle information terminal side to perform voice recognition so that communication between the terminal for voice recognition and the center is unnecessary. Technology has been proposed.
[0003]
[Problems to be solved by the invention]
However, in the prior art, since all the information providing menus provided in the center are supplied from the center to the terminal, there is a problem that the amount of data becomes large and the burden is large in terms of communication time and cost. It was.
The terminal is provided with a voice recognition table. Since the vocabulary necessary for recognizing the voices of all menus is held in the table, the number of vocabulary is very large. Since it is necessary to search the vocabulary of speech spoken from among these many vocabularies, there is a problem that the recognition rate may be lowered. In addition, the number of voice commands for executing the menu increases, and there is a problem that voice operation may be difficult.
[0004]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a client / server type vehicle information communication system that can increase the voice recognition rate and increase the convenience of voice operation.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention described in claim 1 is a client / server type vehicle information communication comprising a client terminal provided in a vehicle and a server connected to be communicable with the client terminal of the vehicle. The system includes a service menu management unit that manages a service menu provided to a client terminal of the vehicle, and the service menu can be changed for each client terminal and a common menu common to the client terminals. The user menu can be updated by connecting to the server through the client terminal, the voice recognition vocabulary is managed only in association with the user menu, and the server The contents of the service menu from the client terminal of the vehicle When a request for registering a constant possible information item to the user menu is sent, and the speech recognition vocabulary for the appropriate service menu, and a phonetic character, and add updates the request destination URL to the top page of the It transmits to a client terminal, It is characterized by the above-mentioned.
[0013]
According to the present invention, since the voice recognition vocabulary is associated with the user menu , the amount of data can be reduced compared to the case where the entire service menu is associated with the voice recognition vocabulary, and the corresponding voice is searched. The search time can be shortened and the search accuracy can be increased .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a client / server type vehicle information communication system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a client / server type vehicle information communication system 1 (hereinafter simply referred to as a vehicle information communication system 1) in an embodiment of the present invention.
[0015]
The vehicle information communication system 1 includes a server 2, a mobile terminal 3, a vehicle navigation device 4 (car navigation 4), and a personal computer 5 (PC 5). The mobile terminal 3, the car navigation 4 and the PC 5 are connected to the server 2 so as to be able to transmit and receive (see arrows P1 to P8).
[0016]
That is, the portable terminal 3, the car navigation 4 and the PC 5 transmit a rewrite request for the user menu 22 in the server 2 to the server 2 (arrows P2, P5 and P4). On the other hand, the server 2 transmits the rewritten (updated) reference data to the mobile terminal 3, the car navigation 4 and the PC 5 (arrows P1, P6, P3). Further, the car navigation 4 transmits update confirmation data to the server 2 (arrow P7), and the server 2 causes the car navigation 4 to download the updated data (arrow P8). Details thereof will be described with reference to FIGS.
[0017]
FIG. 2 is a schematic configuration diagram of the server 2. The server 2 includes service menu storage means 6, voice information storage means 7, central processing means 8, information storage means 9, reading data conversion means 10, and communication means 11.
[0018]
The service menu storage means 6 stores a service menu 31 (see FIG. 7) provided to the car navigation 4. The voice information storage means 7 stores voice recognition vocabulary for each service menu 31 in association with each other. The information storage unit 9 stores identification information of a user who uses the service menu 31 and information on a user menu edited by the user. The reading data conversion means 10 converts the input text into reading data and outputs it.
[0019]
The central processing unit 8 reads and writes information from and to the storage units 6, 7, and 9, and sends a control command to the reading data conversion unit 10 and the communication unit 11. The communication unit 11 receives data from the car navigation 4, the portable terminal 3, and the PC 5, and transmits data to these devices based on a command from the calculation unit 8 (see FIGS. 4 and 5).
[0020]
FIG. 3 is a schematic configuration diagram of the car navigation 4. The car navigation 4 includes a communication unit 12, an operation input unit 13, a voice input unit 14, a current position detection unit 15, a central processing unit 16, a storage unit 17, a voice recognition unit 18, and a voice synthesis unit 19. Display means 20 and audio output means 21.
[0021]
The communication unit 12 transmits data to the communication unit 11 of the server 2 based on a control command from the central processing unit 16 and receives data transmitted from the communication unit 11. The operation input means 13 is an input means that can be operated by a user (see FIG. 16). The voice input means 14 is a means (microphone) for inputting voice from the user.
[0022]
The current position detection means 15 is for detecting the current location of the vehicle, and performs detection using, for example, a GPS function. The central processing means 16 is connected to each means of the car navigation 4 and controls each means, and analyzes the transmitted data.
The storage unit 17 stores data transmitted from the server 2 and a voice identification vocabulary. The voice recognition unit 18 performs voice recognition by comparing the voice input from the voice input unit 14 with the voice identification vocabulary stored in the storage unit 17.
[0023]
The voice synthesizer 19 converts the TTS (Text to Speech) file transmitted from the server 2 into a voice file. The display means 20 is a display for displaying the contents of the service menu 31 (see FIGS. 6 to 12 and the like). The voice output means 21 outputs the voice file converted by the voice synthesis means 19.
[0024]
FIG. 4 is a sequence diagram showing the contents of transmission / reception between the communication means 11 of the car navigation 4 and the communication means 12 of the server 2. First, on the car navigation 4 side, an ID or password, which is user authentication information, is entered on the authentication (login) screen displayed on the display means 20 (see input field A in FIG. 6) and transmitted to the server 2 (step S02). ).
The server 2 performs authentication by comparing the received authentication information with the information storage means 9 (step S04). If authenticated, a cookie is issued and transmitted to the car navigation 4 (step S06), and the cookie is received by the car navigation 4 (step S08). Thereby, the user of the car navigation 4 can be identified on the server 2 side, and the trouble of transmitting the authentication information for each connection can be saved.
[0025]
When the car navigation 4 requests data of the top page 32 (see the login button B in FIG. 7) from the server 2 (step S10), the server 2 transmits the top page 32 based on this request (step S12). The server 2 receives this top page 32 (see FIG. 7). In the top page 32, a common menu 30 common to each car navigation 4 and a user menu 22 that can be changed for each car navigation 4 are set. The common menu 30 and the user menu 22 constitute a service menu 31. The service menu 31 has a hierarchical structure for the information items, and a link button is displayed on the screen with links to the lower levels of each item. Click the link button (see C in FIG. 7). To move to a lower level page.
[0026]
Then, by clicking this link button, the car navigation 4 requests the service menu 31 data from the server 2 (step S16). Then, the server 2 transmits the data of the service menu 31 (step S18), the car navigation 4 receives the data (step S20), and displays the service menu 31 by the display means 20 (see FIG. 8). By clicking the link button of the menu item of the service menu 31 displayed in this figure, it is possible to move to a lower hierarchy.
[0027]
As shown in FIG. 9, a registration button E for registering in the user menu 22 is displayed on the display screen of information items that can specify the contents of the service menu 31. When the registration button E is pressed (step S22), the request is transmitted to the server 2. The server 2 transmits a confirmation page based on the transmitted request (step S24), and the car navigation 4 receives the confirmation page (see FIG. 10) (step S26). By providing the confirmation page in this way, it is possible to reduce the possibility of registering unnecessary pages in the user menu 22 by mistake.
[0028]
Then, when the registration button F shown in FIG. 10 is pressed (step S28), the signal is transmitted to the server 2. As a result, the server 2 adds and updates the speech recognition vocabulary, phonetic characters, and request destination URL of the corresponding service menu 31 to the top page 32 by the central processing means 8 and transmits it to the car navigation 4 ( Steps S30 and 32). The updated data of the top page 32 is attached with a speech synthesis file for guiding speech recognition vocabulary registered as the user menu 22. This file can be played back in text format by voice input such as “top menu”.
Then, the car navigation 4 receives the updated data of the top page 32 (step S34), and the central processing means 16 analyzes the speech recognition vocabulary, phonetic characters, and request destination URL in the top page 32, and performs speech recognition. Deliver to means 18.
[0029]
In this way, the service menu 31 can be set according to the user's frequently used items or the user's preferences, and convenience and comfort can be increased. In addition, since the voice recognition vocabulary is associated with the user menu 22 and the voice vocabulary is added to the menu item so that information can be collected by voice recognition operation, the user menu 22 can be operated comfortably even during traveling. It can be carried out. This will be described later. In addition, since it is possible to connect directly to the information item in the lower hierarchy from the user menu 22, the convenience and comfort of the user can be further increased, and the communication time and cost can be reduced.
[0030]
In the present embodiment, the versions of the common menu 30 and the user menu 22 are individually managed. FIG. 12 is an explanatory diagram of a screen displayed on the display means 20 of the car navigation 4, and FIG. 13 is an explanatory diagram showing a source program of display contents of the screen. In this case, the versions of the common menu 30 and the user menu 22 are the same and are displayed in the same window.
[0031]
In this case, even when the versions of the common menu 30 and the user menu 22 are different, if they are managed in common, the entire common menu 30 and the user menu 22 need to be updated, and no update is required. This is not preferable because data is transmitted and received.
In the present embodiment, as shown in FIGS. 14 and 15, when only one of the common menu 30 and the user menu 22 has a different version, only the different menu is updated. Therefore, it is possible to reduce the amount of data necessary for the update, communication time, and cost.
[0032]
First, as shown in FIG. 16, when the operation switch 25 provided at the center of the handle 24 is input, the display means 20 of the car navigation 4 is activated and data is displayed in the display means 20 (see FIG. 17). ).
FIG. 5 is a sequence diagram of the server 2 and the car navigation 4 when the vehicle is traveling. While the vehicle is traveling, in order to reduce the burden on the driver, the operation on the display unit 20 is limited to voice only, and the touch panel function in the display unit 20 is limited.
First, the speech recognition vocabulary registered in the user menu 22 (for example, K2J, see FIG. 17) is uttered (step S36). Then, the car navigation 4 calls the request destination URL corresponding to the speech recognition vocabulary from the storage unit 17 and requests the corresponding URL (step S38).
The server 2 transmits a corresponding HTML (Hyper Text Markup Language) file and a linked speech synthesis file (TTS file) (step S40, see FIG. 18). In addition, when location information is included in this file, an XML file in POIX (Point of Interest Exchange Language) format is embedded.
[0033]
The car navigation 4 receives the TTS file in addition to the HTML file, and if there is a POIX file, analyzes the position information (step S42). Then, the TTS file is played back in the linked order (see FIG. 19). If location information is included in the file, a map can be referenced. Further, it is possible to set a destination or a mark at the referenced location, and to make a call (see FIG. 20).
[0034]
【The invention's effect】
As described above, according to the first aspect of the present invention, the amount of data can be reduced and the time for searching for the corresponding speech can be reduced as compared with the case where the entire service menu is associated with the speech recognition vocabulary. , Search accuracy can be increased.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a client / server type vehicle information communication system according to an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram showing the server of FIG. 1;
FIG. 3 is a schematic configuration diagram showing the vehicle navigation device of FIG. 1;
FIG. 4 is a sequence diagram of the server and the vehicle navigation device when the vehicle is stopped.
FIG. 5 is a sequence diagram of the server and the vehicle navigation device when the vehicle is running.
FIG. 6 is an explanatory diagram of a screen displayed on the display means of the vehicle navigation device.
FIG. 7 is an explanatory diagram of a screen displayed on the display means of the vehicle navigation device.
FIG. 8 is an explanatory diagram of a screen displayed on the display means of the vehicle navigation device.
FIG. 9 is an explanatory diagram of a screen displayed on the display means of the vehicle navigation device.
FIG. 10 is an explanatory diagram of a screen displayed on the display unit of the vehicle navigation apparatus.
FIG. 11 is an explanatory diagram of a screen displayed on the display unit of the vehicle navigation apparatus.
FIG. 12 is an explanatory diagram of a screen displayed on the display unit of the vehicle navigation device.
13 is an explanatory diagram showing the source program of FIG. 12. FIG.
FIG. 14 is an explanatory diagram of a screen displayed on the display unit of the vehicle navigation apparatus.
FIG. 15 is an explanatory diagram showing the source program of FIG. 14;
FIG. 16 is an operation explanatory diagram of an operation switch provided on the handle.
FIG. 17 is an explanatory diagram of a screen displayed on the display unit of the vehicle navigation apparatus.
FIG. 18 is an explanatory diagram of a screen displayed on the display means of the vehicle navigation device.
FIG. 19 is an explanatory diagram of a screen displayed on the display means of the vehicle navigation device.
FIG. 20 is an explanatory diagram of a screen displayed on the display unit of the vehicle navigation apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Client / server type vehicle information communication system 2 Server 4 Vehicle navigation apparatus 6 Service menu storage means 7 Voice information storage means 8 Central processing means 9 Information storage means 22 User menu 30 Common menu 31 Service menu

Claims (1)

A client terminal provided in the vehicle;
A client / server type vehicle information communication system comprising a server communicably connected to a client terminal of the vehicle,
The server has service menu management means for managing a service menu provided to the client terminal of the vehicle,
The service menu has a common menu common to each client terminal and a user menu that can be changed for each client terminal,
The user menu can be updated by connecting to the server by the client terminal, and the voice recognition vocabulary is managed only in association with the user menu,
Wherein the server, the request to register the identifiable information items contents of the service menu from a client terminal of the vehicle to the user menu is transmitted, the speech recognition vocabulary for the appropriate service menus and phonograms A client / server type vehicle information communication system, wherein the request destination URL is additionally updated on the top page and transmitted to the client terminal.

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