JP2005265477A - On board navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on board navigation system capable of making sure the destination with voice without using a display. <P>SOLUTION: When a user selects a destination using a mobile terminal 100, a receiving part 1 receives the utility code representing the destination from the mobile terminal 100. Further, the receiving part 1 transmits the received utility code to the operation process part 4. The data memory part 3 stores an information formation table containing at least one combination of a facility code adopted for each destination and data for preparing confirmation information. The data contained in the information formation table is coded with an information selection code representing the order of importance of the data. The operation process part 4 records the number of preparation times of confirmed information made by itself, prepares information for confirming the destination from the information preparation table stored in the data memory part 3, while referring to the received facility code and the number of preparation times. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an in-vehicle navigation system, and more particularly to an in-vehicle navigation system for guiding and guiding a vehicle.

  A general in-vehicle navigation system (hereinafter referred to as a general system) searches for a route from a departure point to a destination when the user selects the destination. Next, the general system guides the user to the destination based on the searched route. The destination is selected according to the following procedure. The user inputs a keyword such as a destination address or a facility name using, for example, a remote controller. A general system searches for a destination using an input keyword. Next, the user selects a destination from the retrieved candidates. The general system then displays information about the selected destination, for example, a map containing the destination, or a combination of destination name, address and phone number on the display, and the displayed facility Alternatively, the user is prompted to confirm whether or not to set the location as the destination. When the user determines that the facility or place displayed on the display is the destination intended by the user, the user inputs to the general system using a remote controller, for example, that the facility or place may be set as the destination. A general system determines a destination by confirmation from a user.

In addition, as a method for setting the destination, one of a method for selecting the destination from a list displayed on the display and a method for setting the destination using an enlarged map displayed on the display is selected. There is also a navigation system (hereinafter referred to as a conventional system) that can do this. In a conventional system, when a destination is selected by a user, a process for setting the destination is executed. Specifically, in the conventional system, when an operation for selecting a destination setting mode is performed by the user, a road map centering on the current position is displayed on the display. In the road map image, characters “list input” and “house map input” are displayed. When the user selects the list input mode, a menu of address, phone number, genre, and name search items is displayed on the display, so the user can select any item in the menu, The destination can be specified from the selected item. Furthermore, the conventional system can also display detailed guidance for each destination. In the house map input mode, the map and cursor around the current position are displayed on the display, and the user moves the cursor to the destination. In this case, the user moves the cursor so that the center of the cursor falls within the range of the desired destination house shape. When the destination is determined, the user performs an operation to instruct the conventional system to determine the destination, and the destination is determined (see, for example, Patent Document 1).
JP 2003-5631 A

In the conventional system, the user checks the destination by looking at the information displayed on the display. However, in a navigation system including a display, there is a problem that the user gazes at the display while driving. Therefore, a navigation system without a display has been developed. However, in a navigation system that does not include a display, the destination confirmation method used in the conventional system cannot be applied, and the user cannot confirm the destination.
Therefore, an object of the present invention is to provide an in-vehicle navigation system in which a user can confirm a destination by voice without using a display.

  A first aspect of the present invention is an in-vehicle navigation system for guiding and guiding a vehicle, and includes at least one data set including a combination of a first code attached to each destination and information on the destination. An information creation table using a first storage unit for storing an information creation table, a second storage unit for storing a second code for specifying a destination selected by the user, and the second code as a search key And a confirmation information creation unit that creates confirmation information for the user to confirm the destination by selecting information from the data set including the first code corresponding to the second code, and a confirmation information creation unit And an output unit for outputting the confirmation information created by the voice.

  Preferably, the information included in the data set is provided with a third code indicating the importance of the information, and the confirmation information creation unit records the number of times of creation of confirmation information by itself. Based on the number of times information is created and the third code, information is selected from the data set, and confirmation information is created using the selected information.

  Preferably, the confirmation information creation unit adds data to the created confirmation information based on the number of times the confirmation information is created and the third code when the user cannot confirm the destination with the created confirmation information. To create new confirmation information.

As a specific example, the confirmation information creation unit creates confirmation information including data representing the genre to which the destination belongs.
As another specific example, the confirmation information creating unit creates confirmation information including data representing the location of the destination.
As another specific example, the confirmation information creating unit creates confirmation information including data explaining kanji that are difficult to read.
As another specific example, the confirmation information creation unit creates confirmation information including data representing how to read a character string including alphabets.

  A second aspect of the present invention is a method for setting a destination in an in-vehicle navigation system for guiding and guiding a vehicle, wherein the first storage unit includes a first code attached to each destination and the first code An information creation table including at least one data set including a combination with information on the destination is stored in advance, and the method stores a second code for specifying the destination selected by the user in the second storage unit. A storing step for storing; a searching step for searching the information creation table using the second code as a search key; and a selecting step for selecting information from a data set including the first code corresponding to the second code; A confirmation information creation step for creating confirmation information for the user to confirm the destination, and an output step for outputting the confirmation information created by the confirmation information creation unit by voice. And a flop.

  A third aspect of the present invention is a program for setting a destination in an in-vehicle navigation system that guides and guides a vehicle, and the first storage unit includes a first code assigned to each destination and the program An information creation table including at least one data set including a combination with information on the destination is stored in advance, and the program stores a second code for specifying the destination selected by the user in the second storage unit. A storing step for storing; a searching step for searching the information creation table using the second code as a search key; and a selecting step for selecting information from a data set including the first code corresponding to the second code; , Confirmation information creation step for creating confirmation information for the user to confirm the destination, and confirmation information created by the confirmation information creation unit is output by voice To execute an output step that the computer.

  According to the first to third aspects of the present invention, the in-vehicle navigation system searches the information creation table using a code for specifying the destination selected by the user, and the confirmation for the user to confirm the destination. Create information. Furthermore, the in-vehicle navigation system outputs the created confirmation information by voice. Therefore, it is possible to provide an in-vehicle navigation system that allows a user to confirm a destination by voice without using a display.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing main functions of an in-vehicle navigation system according to an embodiment of the present invention. The in-vehicle navigation system includes a reception unit 1, a position detection unit 2, a data storage unit 3, an arithmetic processing unit 4, and an output unit 5.

  The receiver 1 receives a signal from an external device, such as a receiver for infrared communication. The external device is, for example, a mobile terminal. In the present embodiment, it is assumed that the receiving unit 1 receives a signal from the mobile terminal 100.

  The position detection unit 2 typically includes a GPS (Global Positioning System) receiver and / or a combination of a speed sensor and a gyro sensor. Here, the GPS receiver calculates a coordinate value that specifies the current position of the vehicle based on reception information from an artificial satellite accommodated in the GPS. The speed sensor is installed in the vehicle and detects the traveling speed of the vehicle. The gyro sensor is installed in the vehicle and detects a change in the direction of the vehicle. The position detection unit 2 detects the current position of the vehicle using the receiver and / or the two types of sensors, and transmits the detected current position to the arithmetic processing unit 4.

  Typically, the data storage unit 3 is a device capable of reading at least data stored in a built-in recording medium, such as a CD (Compact Disc) drive, a DVD (Digital Versatile Disc) drive, and a hard disk drive. It is. The data storage unit 3 typically stores map data and an information creation table. The data storage unit 3 reads out necessary data from the recording medium and transmits it to the arithmetic processing unit 4. Hereinafter, various data stored in the data storage unit 3 will be described in detail.

  The map data may be known and is typically a collection of data representing two-dimensional maps and / or three-dimensional maps in different ranges. Since the map data is not data specific to the present invention, detailed description thereof is omitted.

  Next, the information creation table will be described in detail. FIG. 2 is a schematic diagram illustrating an example of an information creation table. The information creation table is a table used for creating confirmation information described in detail later, and is a collection of data sets created for each facility. Here, the data set includes one facility code and a necessary name among name, genre, location, reading explanation, and voice data. Hereinafter, various data included in the information creation table will be described with specific examples.

The name data represents the name of the facility included in the same data set.
Genre data represents the genre to which the facilities included in the same data set belong. Genre data includes, for example, genres such as “public facilities” and “restaurants”, “city hall”, “library”, “French restaurant”, “Italian restaurant”, “Japanese restaurant” and “Chinese restaurant”. Data representing a genre such as “”.
The location data represents the location of facilities included in the same data set. Location data includes, for example, data representing prefectures such as “A prefecture” and “B prefecture”, data representing municipalities such as “c city” and “d city”, “x port”, and “y station square” Data representing various places, such as data representing a narrow place such as “”.

  Reading data represents how to read the names of facilities included in the same data set. As the reading data, for example, it represents how to read a name including kanji that is difficult to read, or represents how to read a name including foreign characters such as alphabets. When the user selects a destination, the destination may be selected using the facility address or the like as a search key even if the user does not know how to read the facility. If the user does not know how to read the name of the facility to be set as the destination, even if the in-vehicle navigation system outputs confirmation information including the name of the facility by voice, the user does not know how to read the facility. Can not be confirmed. From this point of view, the information creation table includes reading data. Specifically, when the name of the facility includes difficult-to-read kanji, the reading data includes, for example, a sentence explaining the name of the facility using the radical name of the kanji and a sentence explaining how to read the name of the facility. Represent. Further, when foreign characters are included in the name of the facility, the reading data represents a sentence explaining the name of the facility using, for example, alphabetical spelling and a sentence explaining how to read the name of the facility. As an example, when the facility name is “CommChinois” and the reading is “Comminois”, the reading data is, for example, “CommemeChihino”. “is is read as Comminova”. Note that the reading data need not be prepared for all facilities. For example, the reading data may be stored in the information creation table only for facilities that use Chinese characters other than the common Chinese characters or facilities that use foreign characters.

  Further, as shown in FIG. 2, an information selection code F is attached to each of data that can be used for confirmation information among the above-mentioned name data, genre data, location data, and reading data. Here, the information selection code F is a code indicating the importance of each data in each data set. The information selection code F is attached to each data in consideration of the importance of each data for each facility. In the present embodiment, the information selection code F is assumed to be a number. Data with the information selection code F = 0 is the most important information. The larger the number of the information selection code F attached to the data, the less important the information is.

  Next, the information selection code F will be described with a specific example. If there is more than one facility with the same name, and the specific information is provided to the user along with the facility name, and if the degree of discrimination from other facilities with the same name increases markedly, the specific information is highly important information. is there. The information selection code F with a small number is attached to information with high importance. Specific examples are shown below. For example, consider the case where there are two “A stores”. Here, it is assumed that one “A store” is a coffee shop and the other “A store” is a steak restaurant. Even if the user listens to the confirmation information including only the information “A store” as the information regarding the destination, the user cannot confirm the destination because the information regarding which “A store” is not known. However, if the information “coffee shop” or “steak restaurant” is provided to the user together with the information “A store”, the user is provided with information on which facility of the two “A stores”. It is possible to know the destination. Therefore, in this case, when confirming the destination “A store”, it can be said that the information “coffee shop” and “steak restaurant” is highly important information. Therefore, in the data set relating to the store A, the information selection code F having a small number is added to the information of “coffee shop” and “steak restaurant”. Another example is given. It is assumed that there are a plurality of “B stores” all over the country, all of which are convenience stores. In this case, when confirming the destination “B store”, even if the information “convenience store” is provided to the user, the user does not know which “B store” is the information and confirms the destination. Can not do it. Therefore, regarding “B store”, the information “convenience store” is information with low importance. Therefore, in the data set relating to the store B, the information “convenience store” is not attached with the information selection code F, or the information selection code F with a large number is attached. Assuming that there is only one store “B store” in front of X station, when the user asks for confirmation information in which the information “X store square” is added to the information “B store”, the user has another “B store”. Can be identified. Therefore, regarding “B store”, the information “X station square” is highly important information. Therefore, in the data set relating to “Store B”, the information selection code F having a small number is added to the information “X station square”.

Note that the information selection codes F assigned to each data may overlap each other in each data set.
The information selection code F is a number in the present embodiment, but is not limited to a number as long as it is information indicating the importance of the information.

  The audio data includes an audio phrase for outputting other data included in the same data set as audio. The audio data only needs to include an audio phrase corresponding to the data with the information selection code F described above, and does not need to include an audio phrase corresponding to all data. For example, in the facility XX in FIG. 2, the voice data includes voice phrases such as “XX” and “X port”. Here, the genre data “theme park” of the facility XX is not attached with the information selection code F, and the voice phrase “theme park” is not included in the voice data. Furthermore, phrases commonly used when creating confirmation information (for example, phrases such as “no”, “in” and “set as the destination”) are stored as voice phrases. There is a need. The commonly used phrases may be stored in the information creation table or may be stored in another table. The voice data is, for example, digital data obtained by recording a human voice and converting the recorded voice using ADPCM (Adaptive Differential Pulse Code Modulation). Further, a voice phrase may be created using a voice synthesis technique, and the created voice phrase may be stored as voice data. A phoneme dictionary for use in the speech synthesis technique may be stored in the data storage unit 3.

  Note that it is possible to store all sentences that may be output as confirmation information as audio data, but this is not realistic. The reason is as described below. For example, for facility code GS596N, the text that may be output as confirmation information is “Set △△△ as the destination”, “Set the aquarium △△△ at port z as the destination” Or some text such as “I will set the aquarium △△△ in the z port of A prefecture as the destination”. When all of these sentences are stored as audio data, the data size becomes very large. In addition, sentences that may be output as confirmation information have a common part. Therefore, in order to share a common part, it is desirable to store a collection of short audio phrases that can be used for confirmation information in the audio data, and to create confirmation information by appropriately combining the audio phrases.

The information stored in the information creation table is not limited to the above, and other information may be stored in the information creation table.
In the information creation table of FIG. 2, the facility codes may be arranged in descending order or ascending order. In this case, the arithmetic processing unit 4 refers to the first character of the facility code transmitted from the receiving unit 1 and searches only the data set including the facility code starting from the same character from the information creation table. Specifically, it is assumed that the facility code GS596N is transmitted from the receiving unit 1 to the arithmetic processing unit 4. If the facility codes are arranged in descending order or ascending order, data sets including the facility code whose first character is G are arranged successively. Therefore, the arithmetic processing unit 4 searches the head of the data set including the facility code whose first character is G, sequentially searches the subsequent data sets, and ends the search when the target facility code is found. . By performing the search according to the above-described series of procedures, the maximum number of data sets to be searched by the arithmetic processing unit 4 is reduced. Therefore, the search time by the arithmetic processing unit 4 is shortened compared to the case of searching the entire information creation table. The
Further, the information creation table may be hierarchized so that the search time is shortened.

  Refer to FIG. 1 again. The arithmetic processing unit 4 typically includes a ROM 6, a CPU 7, and a RAM 8. The ROM 6 stores a navigation program P1 and an information creation program P2. The CPU 7 executes a navigation program P1 and an information creation program P2 stored in the ROM 6. The CPU 7 uses the RAM 8 as a work area when executing the program.

  The navigation program P1 is a computer program that describes a procedure of processing generally executed in the navigation system. Examples of processing generally executed in the navigation system include route search processing, guidance guidance processing, and map matching processing. Here, the route search is a process for searching for a route from the departure point of the vehicle to the destination. The guidance guidance is a process of guiding the traveling direction at an intersection, for example, in order to guide the vehicle along the route searched by the route search. The map matching is a process for correcting the current position of the vehicle on the road in the map data based on the position information transmitted from the position detection unit 2 and the map data.

  The information creation program P2 creates information (hereinafter referred to as confirmation information) for confirming to the user whether or not the destination intended by the user is correctly set before the in-vehicle navigation system determines the destination. It is a computer program describing the processing procedure to be performed. Details of the processing procedure described in the information creation program P2 will be described later.

Note that the navigation program P1 and the information creation program P2 are described as separate programs in the present embodiment. However, one program describing the processing procedures of both the navigation program P1 and the information creation program P2 may be stored in the ROM 6.
In the present embodiment, the navigation program P1 and the information creation program P2 are described as being stored in the ROM 6. However, the navigation program P1 and the information creation program P2 may be distributed in a state of being stored in a recording medium represented by a CD-ROM (Compact Disk Read Only Memory) or distributed via a network. .

  The output unit 5 includes at least a speaker. The output unit 5 outputs various information created by the arithmetic processing unit 4 to the user, preferably by voice. The output unit 5 may include a display unit that displays a simplified diagram and / or characters.

  The mobile terminal 100 is, for example, a mobile phone or a PDA (Personal Digital Assistant). In this embodiment, the portable terminal 100 stores a computer program for searching for a destination (hereinafter referred to as a search program) and a table for searching for a destination (hereinafter referred to as a search table). To do. Hereinafter, the search table will be described in detail. FIG. 3 is a schematic diagram illustrating an example of a search table. The search table is a table in which a facility code assigned to each facility is associated with information that can be used to search for a destination. As an example of information that can be used to search for a destination, in FIG. 3, a facility name, an address, a telephone number, and a barcode are stored in a search table. Here, the barcode data represents, for example, a barcode attached to a posted article when information on a certain facility is published in a magazine. Note that the information stored in the search table is not limited to the above-described information, and may be any data that serves as a reference for specifying the facility.

  Hereinafter, the operation of the in-vehicle navigation system configured as described above will be described. In the present embodiment, first, the user selects a destination using the mobile terminal 100. Hereinafter, a method for selecting a destination by the user will be described in detail. The mobile terminal 100 executes a search program stored in itself according to an operation from the user. Next, the user inputs a keyword into the mobile terminal 100. The mobile terminal 100 searches the search table using the input keyword, and displays destination candidates that partially or completely match the input keyword on its screen.

  Next, the user selects a destination from among the destination candidates displayed on the screen of the mobile terminal 100. When the destination is selected by the user, the mobile terminal 100 extracts the facility code attached to the selected destination from the search table and stores it in its storage unit. Here, when the number of candidates displayed on the screen of the mobile terminal 100 is large, the user may input a further keyword into the mobile terminal 100 and select a destination after performing a narrowing search. Examples of keywords include regional information such as prefectures, genre information such as public facilities and restaurants, facility telephone numbers, facility longitude and latitude values, and / or destination postal codes.

  Next, the mobile terminal 100 transmits the facility code stored in the mobile terminal 100 to the in-vehicle navigation system via, for example, infrared communication. Further, when the mobile terminal 100 is connected to the in-vehicle navigation system with a cable, the mobile terminal 100 may transmit the facility code to the in-vehicle navigation system through the cable.

Note that the mobile terminal 100 may acquire the current position of the vehicle by receiving position information detected by the position detection unit 2 of the in-vehicle navigation system, for example. Next, the portable terminal 100 may give priority to candidates existing within a certain distance on the basis of the received current position of the own vehicle and display them on its screen.
Further, instead of inputting a keyword to the information terminal 100, the user may input a barcode published in a magazine, for example, using a barcode reader.

In this embodiment, the user inputs a keyword using the mobile terminal 100. However, when the in-vehicle navigation system includes an input unit, the user may input the keyword via the input unit. . In this case, the in-vehicle navigation system stores the search program and the search table in its own storage unit. As another example, if the in-vehicle navigation system includes a microphone that can collect voice, the user inputs a keyword through the microphone. The in-vehicle navigation system analyzes input speech using speech recognition technology. Next, the in-vehicle navigation system searches the search table using the analyzed voice information, and acquires the facility code of the destination.
In addition, the user may select a destination on a personal computer at home in advance using a bridge medium such as an SD card (R).

Next, a processing procedure for setting a destination in the in-vehicle navigation system will be described in detail. FIG. 4 is a flowchart illustrating a processing procedure of the arithmetic processing unit 4 according to the destination setting process.
First, the receiving unit 1 receives a facility code transmitted from the mobile terminal 100. The receiving unit 1 transmits the received facility code to the arithmetic processing unit 4. Next, when receiving the facility code, the arithmetic processing unit 4 executes the information creation program P2. Further, the arithmetic processing unit 4 stores the received facility code in the RAM 8 (step S11). Next, the arithmetic processing unit 4 sets the number of creations N to 0 (step S12). Here, the number N of creations is a variable indicating how many times the calculation processing unit 4 has created the confirmation information after the reception unit 1 receives the facility code in step S11. The number N of creations being 0 means that the calculation processing unit 4 has never created confirmation information after the receiving unit 1 receives the facility code in step S11. Next, the arithmetic processing unit 4 creates confirmation information based on the received facility code (step S13).

  Next, with reference to FIG. 5, a detailed processing procedure for creating confirmation information in step S13 will be described. The arithmetic processing unit 4 searches the information creation table stored in the data storage unit 3 using the facility code received in step S11 as a search key (step S21).

  Next, the arithmetic processing unit 4 reads the data set including the facility code used as the search key in step S21 into the RAM 8. Next, the arithmetic processing unit 4 refers to the number of creations N (step S22). Further, the arithmetic processing unit 4 selects the name of the facility and the data to which the number of information selection codes F equal to the number N of creations referred to is added from the data set read out to the RAM 8 (step S23). Hereinafter, step S23 will be specifically described.

  For example, assume that the facility code EB102Z is used as a search key in step S21. Furthermore, it is assumed that the number N of creations referred to by the arithmetic processing unit 4 is 0 in step S22. The arithmetic processing unit 4 searches the information creation table of FIG. 2 and reads a data set including the facility code EB102Z into the RAM 8. The facility name of the facility code EB102Z is “OO” from the table of FIG. Further, there is no information with the information selection code F = 0 in the data set including the facility code EB102Z. Therefore, the arithmetic processing unit 4 selects only “XXX” (that is, the name of the facility) as data used for the confirmation information.

  Next, the arithmetic processing unit 4 uses the voice phrase corresponding to the data selected in step S23 and the common phrase “set as destination” to say “set XX as destination”. Confirmation information by voice is created (step S24). In step S24, the order of combining phrases is described in the information creation program P2. The arithmetic processing unit 4 creates confirmation information by combining phrases according to a predetermined order. Next, the arithmetic processing unit 4 records the number of creations N (step S25).

  When creating confirmation information using the speech synthesis technique, the arithmetic processing unit 4 creates confirmation information by combining speech phrases created using the phoneme dictionary. The arithmetic processing unit 4 may once create the confirmation information as text data, and then convert the confirmation information into a format that can be output as speech using the created text data and the phoneme dictionary. Further, for example, accent information may be stored in the voice data of the information creation table so that the confirmation information created in step S24 is output as a natural voice.

  Refer to FIG. 4 again. Next, the arithmetic processing unit 4 transmits the created confirmation information to the output unit 5. The output unit 5 outputs the received confirmation information to the user (step S14). The user listens to the confirmation information output from the output unit 5. Next, when the user determines that the output confirmation information is not information representing a desired facility, the user inputs a request for canceling the processing using, for example, the portable terminal 100. Furthermore, the mobile terminal 100 transmits a cancel request from the user to the in-vehicle navigation system. The arithmetic processing unit 4 determines whether or not a cancel request from the user has been received (step S15). If YES is determined in step S <b> 15, the arithmetic processing unit 4 creates audio information for requesting reselection of the destination and transmits it to the output unit 5. The output unit 5 outputs the received audio information to the user (step S16). Next, the user uses the mobile terminal 100 to select a destination again. As described above, the portable terminal 100 transmits the facility code indicating the destination selected by the user to the in-vehicle navigation system. When the processing unit 4 newly receives a facility code, the arithmetic processing unit 4 starts processing from step S11.

  On the other hand, if NO is determined in step S15, the arithmetic processing unit 4 proceeds to step S17. When the user listens to the confirmation information output in step S13 and determines that the correct destination is set, the user inputs information indicating YES to the mobile terminal 100. On the other hand, if the user does not know whether or not the information related to the desired destination has been output even after hearing the confirmation information output in step S13, the user inputs information indicating NO to the mobile terminal 100. To do. The portable terminal 100 transmits a signal indicating YES or NO to the in-vehicle navigation device in response to an input from the user. The arithmetic processing unit 4 determines whether or not the received signal is information indicating YES (step S17). If it is determined as YES in step S17, the arithmetic processing unit 4 determines the destination (step S17). The destination determined in step S17 is then used for processing such as route search. On the other hand, if NO is determined in step S17, the process returns to step S13, and the arithmetic processing unit 4 recreates the confirmation information.

  Next, a case where the arithmetic processing unit 4 determines NO in step S17 will be described. In this case, whether or not the output confirmation information is information indicating the desired destination even if the confirmation information “Set XXX as the destination” created in step S24 is heard. This means that it could not be determined. The arithmetic processing unit 4 refers to the number of creations N in step S22. Now, the number of creations N is 1. Accordingly, in step S23, the arithmetic processing unit 4 selects “XXX” and “x port” with the information selection code F = 1 as the phrases used for the confirmation information. Next, in step S24, the arithmetic processing unit 4 uses the voice phrases corresponding to the data “XXX” and “X port”, and the common phrase “in” and “set as the destination”, Confirmation information “Set XX at port x as destination” is created.

  A specific example of the confirmation information to be created will be further given. Consider a case where the arithmetic processing unit 4 searches in step S21 using the facility code GS596N as a search key. In step S22, when the number of creations N referred to by the arithmetic processing unit 4 is 0, the arithmetic processing unit 4 selects the phrase “ΔΔΔ” in step S23. Next, in step S24, the arithmetic processing unit 4 creates confirmation information “Set ΔΔΔ as the destination”. When the arithmetic processing unit 4 determines NO in the first step S <b> 17, the arithmetic processing unit 4 creates second confirmation information. The creation count N referred to by the arithmetic processing unit 4 in step S22 is 1. The arithmetic processing unit 4 refers to the information creation table, selects data with the information selection code F = 1 (that is, “aquarium” and “z port”), and selects “aquarium ΔΔΔ in z port” as the purpose. Confirmation information is created. If the calculation processing unit 4 determines NO in step S17 for the second time, the calculation processing unit 4 determines that “the aquarium Δ △ Δ in the z port of A prefecture is the destination Confirmation information is created.

  Still another example. Consider a case where the arithmetic processing unit 4 searches in step S21 using the facility code YT715V as a search key. The data set including the facility code YT715V includes data “Chinese restaurant” whose information selection code F is 0. In creating the confirmation information for the first time, the arithmetic processing unit 4 creates the confirmation information “Set XXΔ of the Chinese restaurant as the destination”. In step S24 for the second time, the arithmetic processing unit 4 creates confirmation information “Set XXΔ of the Chinese restaurant in the city d as the destination”. In step S24 for the third time, the arithmetic processing unit 4 confirms that “XX of the Chinese restaurant in d city is set as the destination. X is ..., △ is ...”. Create

  This in-vehicle navigation system outputs confirmation information by voice. Even if a lot of information is provided by voice at a time, the user can remember only a part of the provided information. Therefore, it is desirable that the confirmation information by voice is as short as possible so that the user can easily understand it. In this in-vehicle navigation system, the confirmation information output first is short. If the user cannot confirm the destination even after hearing the output confirmation information, the in-vehicle navigation system creates confirmation information with new information added.

  The reading data is created on the assumption that the user does not know how to read the facility name. In the process of step S17, it is very difficult for the arithmetic processing unit 4 to automatically determine whether or not the reason why the user cannot confirm the information is because the user does not know how to read the characters. Therefore, when the user requests a description of how to read using the input unit 1, the arithmetic processing unit 4 may create confirmation information including audio data corresponding to data explaining the reading.

  In the present embodiment, there is no limit on the number of times that the arithmetic processing unit 4 creates the confirmation information. However, when the number N of creations exceeds a predetermined value, the creation of confirmation information may be aborted.

  In the present embodiment, the search program and the search table are described as being stored in the mobile terminal 100. In the present embodiment, the information creation program is described as being stored in the data storage unit 3. However, the search program, the search table, and the information creation table may all be stored on the server.

  The in-vehicle navigation system of the present invention is useful as a navigation system that provides various types of information to users by voice.

The block diagram which shows the main functions of the vehicle-mounted navigation system which concerns on one Embodiment of this invention Schematic diagram showing an example of an information creation table Schematic diagram showing an example of a search table The flowchart which shows the process sequence of the arithmetic processing part 4 which concerns on a destination setting process. The flowchart which shows the detailed procedure of the confirmation information creation process of step S13

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reception part 2 Position detection part 3 Data storage part 4 Arithmetic processing part 5 Output part 6 ROM
7 CPU
8 RAM

Claims (9)

An in-vehicle navigation system for guiding and guiding a vehicle,
A first storage unit for storing an information creation table including at least one data set including a combination of a first code attached to each destination and information on the destination;
A second storage for storing a second code identifying the destination selected by the user;
Using the second code as a search key, the information creation table is searched, information is selected from a data set including the first code corresponding to the second code, and the user confirms the destination. A confirmation information creation unit for creating confirmation information for
An in-vehicle navigation system comprising: an output unit that outputs the confirmation information created by the confirmation information creation unit by voice. The information included in the data set has a third code indicating the importance of the information,
The confirmation information creation unit records the number of times of creation of confirmation information by itself, selects information from the data set based on the number of times of creation of the confirmation information and the third code, and selects The in-vehicle navigation system according to claim 1, wherein the confirmation information is created using the information obtained.   The confirmation information creation unit, when the user cannot confirm the destination with the created confirmation information, adds data to the created confirmation information based on the number of times the confirmation information is created and the third code. The in-vehicle navigation system according to claim 2, which is added to create new confirmation information.   The in-vehicle navigation system according to claim 1, wherein the confirmation information creating unit creates confirmation information including data representing a genre to which the destination belongs.   The in-vehicle navigation system according to claim 1, wherein the confirmation information creating unit creates confirmation information including data representing a destination location.   The in-vehicle navigation system according to claim 1, wherein the confirmation information creating unit creates confirmation information including data explaining kanji that is difficult to read.   The in-vehicle navigation system according to claim 1, wherein the confirmation information creating unit creates confirmation information including data representing how to read a character string including alphabets. A method for setting a destination in an in-vehicle navigation system for guiding and guiding a vehicle,
The first storage unit stores in advance an information creation table including at least one data set including a combination of the first code attached to each destination and information on the destination,
The method
A storage step of storing in the second storage unit a second code identifying the destination selected by the user;
A search step of searching the information creation table using the second code as a search key;
A selection step of selecting information from a data set including a first code corresponding to the second code;
A confirmation information creation step for creating confirmation information for the user to confirm the destination;
An output step of outputting the confirmation information created by the confirmation information creation unit by voice. A program for setting a destination in an in-vehicle navigation system for guiding and guiding a vehicle,
The first storage unit stores in advance an information creation table including at least one data set including a combination of the first code attached to each destination and information on the destination,
The program is
A storage step of storing in the second storage unit a second code identifying the destination selected by the user;
A search step of searching the information creation table using the second code as a search key;
A selection step of selecting information from a data set including a first code corresponding to the second code;
A confirmation information creation step for creating confirmation information for the user to confirm the destination;
A program for causing a computer to execute an output step of outputting the confirmation information created by the confirmation information creation unit by voice.

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