JP2009014704A - Navigation apparatus and navigation program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display narrowed-down location candidates in a list in an order matching a user's preferences in a target search. <P>SOLUTION: In consideration that the search target is limited to particular words, words that are shared in the reading of a plurality of sets of destination data are stored as search keywords. Meanwhile, search keywords are appended to individual sets of destination data that are to be the search objects. In execution of the search for a destination, keywords that match a part of the input characters are narrowed down and displayed as selectable keys, which allows the location candidates to be narrowed down based on the input characters and the selected keywords. Upon the selection of a determination key, the priority levels of the narrowed-down location candidates are adjusted according to priority score adjustment rules, and the location candidates are displayed in a list in descending order of the priority level. This allows the narrowed-down location candidates to be displayed in a list in order matching the user's preference. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navigation device and a navigation program, and relates to, for example, a method for searching for a corresponding property by inputting a character string.

In recent years, guiding a vehicle by a navigation device has been actively performed.
The navigation device has a function of searching for a route from a departure place to a destination, a function of detecting a position of the own vehicle using a sensor such as a GPS (Global Positioning System) satellite or a gyro, and a route to the destination and the own vehicle. It has a function to display the current location of the map on the map.
Generally, in a navigation device, as proposed in Patent Document 1, when searching for a place name / facility name of a destination, by reading the name, address, telephone number, etc. from the touch panel, The candidate points are narrowed down.
When input by reading or search by genre is completed, the narrowed candidate points are displayed in a list on the display screen, and a desired destination is designated from the list.

Japanese Patent Laid-Open No. 11-271084

However, when searching for a destination point by inputting a reading of its name, it is necessary to input characters one by one, which is inconvenient because of the number of operations / operation time.
Also, it was not possible to search from characters that were not included in the point reading.

Mobile phones, etc. have a function to display input character candidates by complementing the input characters, but this also only shows the characters that have already been input and those that have already been input. It was not possible to narrow down from the department.
In addition, since mobile phones have versatility assuming the input of all characters, unnecessary words are often displayed as complementary candidates, which is not convenient.

On the other hand, in the navigation device, when the destination candidate points narrowed down by the search are displayed as a list, they are displayed in alphabetical order or coordinate order (from north to south, etc.).
Thus, the order of the list display is fixed, and when the number of candidate points is large, there are many cases where the candidate points are not higher candidate points, and the usability is poor.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to display a list of candidate points according to the user's wishes for narrowed candidate points in a destination search of a navigation device.

(1) In order to achieve the object, in the invention described in claim 1, destination data storage means for storing destination data to be searched, character input means for inputting search characters, and the input Search means for searching for destination data including a character as a candidate destination, and priority determination means for determining the display priority for each of the searched candidate destinations based on the contents and the current situation And a display unit that preferentially displays the determined candidate destination with a high priority.
(2) In the invention described in claim 2, a priority is defined for each destination data, and the priority determination means changes the priority according to the contents of the candidate destination and the current situation. The priority defined for the candidate destination is changed based on the information, and the display means preferentially displays the candidate destination having a higher priority after the change. A navigation device according to 1 is provided.
(3) In the invention described in claim 3, the change rule is for at least one of season, weather, time, relation to consecutive holidays, current location, destination, distance from nearest IC to destination, and genre. The navigation apparatus according to claim 1 or 2, wherein the navigation apparatus is defined.
(4) In the invention according to claim 4, the computer includes the input characters from character input means for inputting search characters and destination data storage means for storing destination data to be searched. Search means for searching for destination data as candidate destinations, priority determination means for determining the priority to be displayed for each of the searched candidate destinations based on the contents and the current situation, and the determination There is provided a navigation program for functioning as a display means for preferentially displaying candidate destinations having high priority.

  According to the present invention, the priority to be displayed is determined for each searched candidate destination based on the contents and the current situation, and the candidate destination with a higher priority is displayed with priority. The candidate points according to the user's wish can be displayed in a higher rank list.

(1) Outline of Embodiment In this embodiment, in consideration of the fact that the search target of the navigation device is limited to a specific word (such as a name of a point), a word common to reading a plurality of destination data is used for searching. Are extracted as keywords and stored in a keyword data file.
A search keyword is created by extracting a word common to reading of each destination data as a keyword, and stored as keyword data. For example, “Super”, “Daigaku”, “Joho”, “Senta”, “Lando”, “Ginko”, “Yuenchi”, “Gorfu”, which are used as multiple point names (reading destinations) Etc. are extracted as keywords.
On the other hand, search keywords are assigned to individual destination data to be searched.

  A keyword is created for each destination name, address, and genre, and is stored in a keyword data file in a distinguishable manner. Also, keywords for names, addresses, and genres are given to each destination data.

  When searching for a destination, a keyword that partially matches an input character is searched and the corresponding keyword is displayed. By displaying the displayed keyword as a selectable key, the user can omit an input operation by selecting the corresponding keyword. For example, the operation can be shortened by selecting a keyword having three or more characters by a total of two operations of inputting and selecting the shortest one character.

Keywords are narrowed down by character input, and destination data to which the input characters and readings partially match and destination data to which all keywords partially matching the input characters are assigned are narrowed down as candidate points.
As a result, it is possible to narrow down from characters in the middle of reading the destination. For example, a restaurant “Misooni with miso stew” includes the keyword “Nikomi” by inputting the character “Ni”, and is targeted for narrowing down, and a search based on a partial memory becomes possible.

  For each keyword stored in the keyword data file, a keyword related to the keyword is stored as a related keyword. Thereby, it is possible to search as a candidate even from a word that is not included in the reading (name, address, genre) of the destination that is the search target.

In this way, by including not only the character unit but also the keyword or related keyword unit that is estimated (squeezed) from the input character, the input operation can be reduced, and a wider range of points can be searched. It is possible to increase the number of scenes that can be input easily.
Also, by creating a keyword dictionary from navigation point information, there is no excess or deficiency with respect to point search, and input and search suitable for navigation become possible.

Further, each keyword is given a priority for determining the priority order in the case of list display. For example, the priority is set to be larger as the number of destinations used is larger, and is determined in advance from actually used statistical values.
When the decision key is selected by the user after entering characters for narrowing down or selecting a keyword, the candidate points of each narrowed destination are selected according to the priority score changing rule that changes the priority according to the season or position. After changing the priority, the point candidates are displayed in a list in descending order of priority.
As a result, the narrowed-down point candidates can be displayed in a list in the order that matches the user's request.

(2) Details of Embodiment [First Embodiment]
FIG. 1 is a system configuration diagram of a navigation apparatus to which this embodiment is applied.
The navigation device is mounted on a vehicle and includes a current position detection device 10, an information processing control device 20, an input / output device 40, and an information storage device 50 as shown in FIG.
First, the current position detection device 10 has the following configuration. The absolute direction sensor 11 is, for example, a geomagnetic sensor that detects in which direction the vehicle is located from detection in the N direction based on a magnet, and may be any means that detects the absolute direction.

The relative azimuth sensor 12 detects, for example, whether or not an intersection is bent, and may be an optical rotation sensor attached to a rotating part of a handle, a rotational resistance volume, or an angle sensor attached to a wheel part.
Further, a gyro sensor that detects a change in angle using an angular velocity may be used. That is, any means capable of detecting an angle that has changed relative to the reference angle (absolute direction) may be used.
The distance sensor 13 may be, for example, one that detects and counts the rotation of a wheel, or one that detects acceleration and integrates twice. That is, any means capable of measuring the moving distance of the vehicle may be used.

The GPS (Global Positioning System) receiver 14 is a device that receives a signal from an artificial satellite, and includes various signals such as signal transmission time, position information of the receiver, moving speed of the receiver, and traveling direction of the receiver. Information can be obtained.
The beacon receiving device 15 is a device that receives a signal transmitted from a transmitting device installed at a specific point. In particular, VICS information can be obtained, and information related to vehicle travel such as traffic jam information, current position information, and parking lot information can be obtained.

The data transmission / reception device 16 is a device for communicating with the outside of the vehicle using a telephone line or radio waves and exchanging information.
For example, there are various usage methods such as a car phone, ATIS, VICS, GPS correction, and inter-vehicle communication, and it is possible to input / output information related to traveling.
Next, the information processing control device 20 performs calculation and control based on the information input from the current position detection device 10 and the input / output device 40 and the information stored in the information storage device 50, and displays the calculation result on the display 42. , A means for controlling to output to the output means such as the printer 43 or the speaker 44.

The information processing control device 20 has the following configuration.
The central processing unit (CPU) 21 performs overall calculation and control of the entire navigation device.
The first ROM 22 stores a navigation program, in particular, a navigation program related to current position detection, route search, display guidance, and the like.
The input interface 23 is means for receiving information from the current position detection device 10.

The RAM 24 stores information input by the user such as destination information and passage point information input by an input device, which will be described later, and results calculated by the CPU 21 based on the user input information, as well as routes It is a storage means for storing the searched result or the map information read from the storage information device 50.
The communication interface 25 is a means for inputting / outputting information from the current position detecting means 10, particularly information obtained from the outside.

The second ROM 26 stores a program related to navigation, particularly a navigation program related to voice guidance.
The image processor 27 is a processing means for processing vector information processed by the CPU into image information.
The clock 28 keeps time.
The image memory 19 is means for storing image information processed by the image processor.
The audio processor 30 processes the audio information read from the information storage device and outputs it to the speaker.

The input / output device 40 includes an input device 41 for inputting data such as a destination, a passage point, and a search condition by a user, a display 42 for displaying an image, a printer 43 for printing information, and a speaker 44 for outputting sound. The The input device 41 includes, for example, a touch panel, a touch switch, a joystick, a key switch, and the like disposed on the surface of the display 42.
The display 42 displays a map around the current location, various operation screens, and a travel route to the destination.

The information storage device 50 is connected to the information processing control device 20 via the transmission path 45.
The information storage device 50 includes a map data file 51, an intersection data file 52, a node data file 53, a road data file 54, a photo data file 55, a destination data file 56, a guidance point data file 57, a keyword data file 58, a priority order. A score change rule file 59 and other data files 60 are stored.
The information storage device 50 is generally composed of a DVD-ROM or CD-ROM that is an optical storage medium, or a hard disk that is a magnetic storage medium, but various information such as a magneto-optical disk and a semiconductor memory. You may comprise with a storage medium.

  The map data file 51 stores map data such as a national road map, a road map of each region, or a house map. The road map is composed of roads such as main arterial roads, expressways and narrow streets, and ground targets (facility etc.). A house map is a city map in which a figure representing an outer shape of a ground structure, a road name, and the like are displayed. A narrow street is, for example, a relatively narrow road having a road width equal to or less than a predetermined value below a national road or prefectural road, and road to which traffic regulation information such as “one-way” is not added.

  The node data file 53 includes the geographical coordinate data of each node used for route search on the map, the road data file 54 includes the position and type of roads, the number of lanes, the connection relationship between the roads, and the like. The photo data file 55 contains the image data of photographs showing places where visual indications such as various facilities and sightseeing spots or major intersections are required, and the guide point data file 57 contains road data. Guidance data of points where guidance is required, such as the contents of installed guidance display boards and guidance of branch points, are stored.

  The destination data file 56 stores data on destination search targets such as major tourist destinations and buildings, places and facilities that can be selected as destinations of companies and offices described in the telephone directory, etc. Yes.

FIG. 2 conceptually shows the contents of the destination data (point information) stored in the destination data file 56.
As shown in FIG. 2, as the destination data, search keys, names, coordinates, telephone numbers, additional information, etc., and keywords used in the present embodiment are stored.
The search key is a reading of the “name” of the destination. This search key corresponds to an input device (in this embodiment, a 50-sound key on the touch panel) and is written in katakana, but may be hiragana.
The coordinates are x and y coordinate information including the latitude and longitude of the destination. The additional information stores detailed data regarding the destination.

As keywords, keywords for names, addresses, and genres are stored so that they can be distinguished from each other.
The keyword stores a keyword corresponding to the destination among the keywords described later. For example, the keywords “Tsukuba” and “Digaku” are stored for the destination “University of Tsukuba” as keywords for the name, and in the case of the destination “Cakudonald Tokyo Station”, the keywords “Cakdonald” and “Tokyo” Station "etc. are stored.
Similarly, keywords corresponding to the destination are stored in the address and genre keywords. Here, the genre is a hierarchical classification of each destination, and is classified into “eating / drinking”, “buying / renting”, “staying”, “watching / playing”, “car-related facilities”, etc. “Convenience store”, “Supermarket”, “Discount”, “Department Store”, etc. are determined in the lower layer of “Rent”, and the genre to which each destination belongs is specified and stored in advance.

  In each destination data, even if it is a word that is not included in the reading of the notation, a short form, a nickname, or the like may be stored as a keyword. For example, in addition to “Game Center”, “Kogami”, “Headquarters” as a keyword for the destination name “Game Center Kogami XX Headquarters”, there is a case where the abbreviated form “Game Center” is stored as a keyword.

In FIG. 1, a keyword data file 58 stores keywords to be searched corresponding to input characters.
FIG. 3 conceptually shows the contents of the keywords stored in the keyword data file 58.
As shown in FIG. 3, similarly to the keywords stored in the destination data file 56, a name keyword, an address keyword, and a genre keyword are stored.
Each keyword is composed of “words” (notation) corresponding to each destination data. For example, “words” that are included in a predetermined number or more in the name, address, etc. of the destination are extracted as keywords, but in addition to this, “convenience store” meaning “convenience store”, “game center” Abbreviated and abbreviated words such as “gamesen” are also created as keywords.

In the present embodiment, as will be described later, keywords narrowed down corresponding to input characters are displayed as input keys. Each keyword is defined with a priority for determining the order in which keys narrowed down corresponding to the input characters are displayed. In addition, as a change condition for changing this priority according to the current situation (time, place, etc.), the corresponding season, the corresponding weather, the corresponding time, the type, and the region exist, and each keyword corresponds to each item. The contents of the conditions are specified.
For example, the priority of the point candidate including the keyword “nabe” is defined as “75”, and the corresponding season is defined as “October to March”. The predetermined n points (for example, 3 points) are added and the priority is changed to 78.

  In addition, there are keywords in which related keywords are set. This related keyword is a word that is frequently input as a search word together with the keyword, for example, “Gakuen” or “Center” for the keyword “Tsukuba”, and the destination keyword together with the keyword. A “word” constituting part or all of the notation is set.

In the related keyword in the present embodiment, when a keyword selected corresponding to character input is selected by the user, the related keyword for the selected keyword is displayed as a key for the next selection candidate (input candidate). Further, the related keyword is displayed when the total number of keywords narrowed down corresponding to the character input is less than a predetermined number (for example, the maximum number that can be displayed on the screen). .
As shown in FIG. 3, the related keywords, as with the keywords, have a priority, a corresponding season for changing the priority, a corresponding weather, a corresponding time, a type, and a region defined as necessary. The related keyword is stored as a keyword for each destination data, and is handled in the same manner as the keyword.

In the present embodiment, keywords and related keywords are searched as AND conditions when narrowing down destinations. That is, when the keyword A and the related keyword a are selected, the destination data having both A and a as keywords is narrowed down.
Destination data is narrowed down as AND conditions between name keywords, address keywords, genre keywords, and related keywords.

In FIG. 1, a priority score change rule file 59 defines rules for changing the priority of each keyword.
FIG. 4 shows an outline of the priority score changing rule.
As a priority score change rule, there are change rules based on a time element, a place element, a weather element, a destination element, etc. at the time of search. All of these change rules are applied, but all of the change rules may be applied as defaults so that application items can be selected according to user preferences. This makes it possible to display a list of destination candidates (candidate points) in an order that matches the user's preference. Further, by configuring the user so that the user can appropriately select keywords that increase or decrease the priority (score) for each item, the order can be further adapted to the user's preference.

As shown in FIG. 4, if the search season is summer, the priority score of a candidate point (destination) including keywords related to camping, golf, beaches, and pools is increased. Similarly, if the season is winter, candidate points including keywords related to skiing and hot springs are increased. When no season is specified, candidate points including keywords related to a zoo, golf, and a road (along the travel route) station are increased.
Note that “not specified” is applied when the non-use of the mode for changing the score is selected by the user (the same applies hereinafter).

Also, if the weather is fine, increase the priority score for candidate points that include keywords related to zoos, pools, and amusement parks, and if the weather is rainy, candidates include keywords related to dome, heated pool, and aquarium. The priority of the point is increased, and if no designation is made, the priority of the candidate point including the keyword related to the department store is increased.
The weather can be determined from various sensor outputs. For example, the weather is determined from an illuminometer, a rain detection sensor, a wiper drive signal, time, and the like.

  Also, if it is determined that it is morning from the current time, the priority score for points including keywords related to amusement parks and golf is increased, and if it is determined that it is evening, it is related to udon and supermarkets. Increase the priority score for points that contain keywords.

In addition, when the calendar is before and during consecutive holidays, priority is given to points farther from the current position as the number of remaining days of consecutive holidays increases, and priority is given to candidate points by prioritizing nearby points when the number of remaining days is low. To do.
For example, if your current location is Nagoya, if you are on the first day of consecutive holidays, increase the priority of candidate points that include keywords related to land, sea, etc. as faraway points, and if it is the last day of consecutive holidays or weekdays, Increase the priority of candidate points that contain keywords related to stores, shops, etc. as points.

  If the current location is around the registered home (within 100 km from the home), the priority order of candidate points including keywords related to supermarkets and family restaurants is increased. On the other hand, if the current location is other than the vicinity of the home, the priority order of candidate points including keywords related to tourist information, folk art stores, and specialty products is increased.

Further, when the destination is set, the priority order of the candidate points existing in the vicinity of the destination, the vicinity of the travel route searched to the set destination, and the destination direction is increased.
On the other hand, the priority order of candidate points existing in the opposite direction to the destination is lowered (score negative).

Further, the priority of the candidate point is increased as the distance from the location of the candidate point to the nearest IC (interchange) is smaller and the number of the nearest ICs is larger. Conversely, as the distance from the location of the candidate point to the nearest IC increases, the priority of the candidate point decreases as the number of nearest ICs decreases.
When a genre is selected, the priority is set higher in the order of food, shopping, and leisure, and the priority of other genres is decreased.

  As another change rule, for example, the priority is increased as the number of characters other than the input character or the selected keyword (the number of remaining characters) is smaller. For example, if the keywords “Sagami” and “Kodomo” are selected, the lower the number of remaining characters excluding “Sagami Kodomo”, the higher the priority. As a result, the destination candidates are given priority in the order of “Sagami Children Sea”, “Sagami Children Land”, and “Sagami Children Land Station”.

In the above priority score changing rule, when the score is increased, a predetermined value m (for example, m = 5) is added, and when the score is decreased, the predetermined value m is subtracted.
As the score value before subtracting the predetermined value m, the keyword priority stored in the destination data of each candidate point is used. When there are a plurality of keywords, the highest value after changing the priority is adopted. In addition, the priority of a candidate point for which no keyword is set is 50.

  The change rule in FIG. 4 is an example, and one or more of these rules are determined. The determination target may be determined in advance or may be selected by the user. Each rule to be determined is determined independently of other rules.

In the navigation device configured as described above, route guidance is performed as follows.
The navigation device detects the current position by the current position detection device 10, reads the map information around the current position from the map data file 51 of the information storage device 50, and displays it on the display 42.
When a destination is set by a destination setting process described later, the information processing control device 20 searches for (calculates) a plurality of candidates for a travel route from the current position to the destination, and displays the map on the display 42. When the driver selects any travel route, the travel route is acquired by storing the selected travel route in the RAM 24 (travel route acquisition means).

  The information processing control device 20 travels by transmitting the current vehicle position (or input departure point) and destination to the information processing center and receiving a travel route to the destination searched for by the information processing center. A route may be acquired. In this case, communication of the destination and the travel route is performed by wireless communication via the communication interface 25.

When the vehicle travels, route guidance is performed by tracking the current position detected by the current position detection device 10.
The route guidance specifies the vehicle position on the map by map matching between the road data corresponding to the searched travel route and the current position detected by the current position detection device 10, and displays a map around the vehicle current position on the display 42. In addition to the display, the searched travel route and the current position are displayed on the map.
Also, based on the relationship between the searched travel route and the current position, the necessity of guidance, that is, whether or not guidance for a travel route such as a predetermined route change point and direction guidance is necessary when straight traveling continues for a predetermined distance or more, etc. Judgment is made, and if necessary, display on the display 42 and voice guidance are executed.

Next, the destination setting process according to the present embodiment will be described.
FIG. 5 shows the input device 41 and the display 42.
As shown in FIG. 5, various menu screens such as a destination setting screen and a map screen around the current location are displayed on the display 42, and pointing can be performed by directly touching the display screen (display) with a finger. A touch panel is provided.
A fixed frame of the input device 41 is arranged on the outer peripheral edge of the display 42, and a destination setting key 411 configured by a push button (hard key) physically present in the upper area of the fixed frame, and the current position periphery A map key 412 for displaying the map screen is provided.

The destination setting key 411 is a key for displaying a destination setting screen for setting a destination, a waypoint, and the like (hereinafter referred to as a destination).
When the destination setting key 411 is selected, the destination setting process according to the present embodiment is performed. The destination set by the destination setting process according to the present embodiment is used for route search, and is also used when displaying the determined destination and candidate destinations around the current location on the map screen. .

The display 42 in FIG. 5 is displayed for a screen in a state where the destination setting screen is displayed.
On this destination setting screen, a keyword field 421, an input keyboard 422, an input character field 423, a candidate number field 424, a correction key 425, a return key 426, and a completion key 427 are displayed.
In the keyword column 421, keywords (including related keywords) narrowed down according to input characters are displayed. The keyword displayed in the keyword column 421 is displayed as an input key, and the keyword can be selected by touching the displayed keyword. The keyword and the related keyword are displayed separately.
The keyword column 421 includes keyword columns for name, address, and genre. By selecting the name tab 421a, the address tab 421b, and the genre tab 421c, the keyword column 421 is narrowed down to the keyword column corresponding to the selection tab. Keywords are displayed at the top.

The input keyboard 422 is composed of keys for inputting 50 sounds. A numeric keypad and function keys may be displayed.
In the input character column 423, characters input by the input keyboard 422 and keywords selected from the keyword column are displayed. Input characters and keywords are displayed in a distinguishable manner.
In the candidate number field 424, the number of candidate points (destination data) narrowed down by the input characters and keywords displayed in the input character field are displayed.
The correction key 425 is a key for correcting an input character or a selected keyword.
The return key 426 is a key for returning to the state before the last operation.
The completion key 427 is a key for displaying a list of candidate destination points narrowed down by inputting characters or selecting keywords.
As shown in FIG. 5, in the destination setting screen, “free word” is displayed at the upper left. This display not only inputs the destination description from the beginning, but also corresponds to the keyword and related keyword. It is possible to input freely.

FIG. 6 is a flowchart showing the contents of the destination setting process.
Note that the flowchart of FIG. 6 does not include the case where the correction key 425 or the return key 426 is pressed as an operation for setting the destination. The pressing of both keys 425 and 426 can be performed at any time point until the completion key 427 is pressed. When the correction key 425 is pressed, the correction process is performed, and when the return key 426 is pressed, the previous key is pressed. Processing to return to the operation of is executed. This process may be a separate routine.

The information processing control device 20 monitors whether or not the target value setting key 411 has been pressed (selected) by the user (step 11). When the pressing of the destination setting key 411 is detected (step 11; Y), the information processing control device 20 displays the destination setting screen shown in FIG. 5 (step 12), and whether or not a character is input from the input keyboard 422. Is monitored (step 13).
When a character is input (step 13; Y), the information processing control device 20 displays the input character in the input character field 423 (step 14), and the input character is selected from all keywords in the keyword data file 58. Keywords that partially match the characters (character strings) displayed in the column 423 are narrowed down (step 15). This narrowing down of keywords is performed for each keyword for name, address, and genre, and is stored in a predetermined area of the RAM 24.

Next, the information processing control device 20 narrows down the destination candidates (candidate points) based on the input characters displayed in the input character column and the narrowed keywords and stores them in the RAM 24, and also displays the number of narrowed destination candidates in the candidate number column. It is displayed on 424 (step 16).
To narrow down destination candidates by input characters, search keys for destination data (name reading, see FIG. 2) that partially match the input characters (one or more characters) displayed in the input character column are narrowed down. On the other hand, in the narrowing down by keyword, the destination data storing any one of all the keywords narrowed down in step 15 is narrowed down.
The input character and the keyword are in an AND condition, and the destination data narrowed down by the input character and the keyword is stored in the RAM 24 as a destination candidate.

It should be noted that the destination candidates are narrowed down to the destination data file 56 when the first character is input, and thereafter to the destination candidates stored in the RAM 24. Is done. In the case of narrowing down the target for the RAM 24, other than the narrowed-down destination candidates are deleted.
The narrowed destination candidates may be stored in the RAM 24 as destination candidates with narrowed destination data IDs, instead of storing all the destination data in the RAM 24. In this case, when further narrowing is performed, narrowing is performed while referring to the destination data corresponding to the ID of the RAM 24 from the destination data file 56.

Next, the information processing control device 20 displays the narrowed keywords in the keyword column 421 as selectable keys (step 17). The keywords corresponding to the tabs 421a to 421c displayed at the top are displayed in the keyword column 421.
In the keyword field 421, keywords that partially match the input character or the selected keyword are narrowed down and displayed. If the narrowed down keyword is less than or equal to the predetermined number of display targets, Keywords are also displayed.

FIG. 7 exemplifies the display state of the destination setting screen in the processing after step 17.
FIG. 7A is a destination setting screen after the character “T” is input from the input keyboard 422. The input character “tsu” is displayed in the input character field 423 (step 14), and the keywords (names) “Tsukuba”, “Tsuchiura”, “Tsukuoka”, “Tsukuba Daigaku”, etc. that partially correspond to the input character “Ts” ... Are narrowed down (step 15) and displayed in the keyword field 421 of the name tab 421a (step 17).

  When the address tab 421b is touched on the destination setting screen shown in FIG. 7A, the address keyword field 421 is displayed at the top, and the address keywords narrowed down corresponding to the input character “one” are displayed. Is displayed.

In step 17, when displaying the narrowed keyword in the keyword column 421, the information processing control device 20 changes the priority of each keyword from the current situation (corresponding season, weather, time, type, region, etc.). To do. Then, keywords are displayed in the keyword column 421 in descending order of priority.
In FIG. 7A, the keyword “Tsukuba Daigaku” is displayed before “Tsuchiura” and “Tsuruoka” in the order of Aiueo, but “Tsuchiura” and “Tsuruoka” with higher priority (see FIG. 3) are displayed first. It is displayed.
As described above, by changing the display order of the keywords according to the priority, it is possible to display the keywords that match the user request. In particular, if the current situation is summer, morning, or sunny, for example, the priority of keywords related to the pool or the sea is changed to a higher priority so that keywords that meet the user's request are displayed with higher priority. Can do.

  Returning to FIG. 6, next, the information processing control device 20 monitors the next input (selection) (steps 18 and 20). When the keyword in the keyword column 421 is selected (step 18; Y), the information processing control device 20 changes the input character displayed in the input character column 423 to the selected keyword (step 19). In this case, if another keyword has already been displayed in the input character field 423 by the previous operation, the newly selected keyword is displayed after the keyword. The keyword is displayed in a frame so as to be distinguished from the input character as shown in FIG.

After displaying the keyword in the input character field 423, the information processing control device 20 returns to step 15 to narrow down the selected keyword (step 15) and narrow down the destination candidates (step 16).
In step 15 after step 19, keywords including a keyword selected from the already narrowed keywords stored in the RAM 24 (step 15 after step 14) are narrowed down. Keywords that are not targeted for filtering are deleted. For example, when the keyword “Tsukuba” is selected in FIG. 7A, “Tsukuba Daigaku” is narrowed down, and the other “Tsukuura” and “Tsuruoka” are deleted from the keyword.

Next, the information processing control device 20 further narrows down the destination candidates stored in the RAM 24 with the selected keyword (step 16), and then displays the keyword narrowed down in step 15 in the keyword column.
FIG. 7B shows the destination setting screen in this state. That is, this is the destination setting screen after the keyword “Tsukuba” is selected on the destination setting screen of FIG.
In the input character column 423, the selected keyword “Tsukuba” is displayed in the frame instead of the input character “Tsukuba”, and the further narrowed keyword “Tsukuba Daigaku” is displayed in the keyword column 421. In FIG. 7B, since the keyword including “Tsukuba” is one “Tsukuba Daigaku”, the related keywords “Gakuen” and “Center” related to the selected keyword “Tsukuba” are displayed. If the related keyword of the selected keyword is still less than the predetermined number, the related keyword of the narrowed keyword is also displayed.
When related keywords are displayed, they are displayed in descending order of priority after changing based on the current situation (time, place, etc.) including the keywords.
The keywords displayed in the keyword column are displayed in an oval frame and the related keywords are displayed in a rectangular frame so that they can be distinguished from each other.

Returning to FIG. 6, when a character is input (step 18; N, step 20; N), the information processing control device 20 returns to step 14 and performs processing after the display of the input character (step 14).
On the other hand, when the completion key 427 is selected (step 20; Y), the information processing control device 20 displays a priority score for the destination candidates (destination data) narrowed down in step 16 and stored in the RAM 24. Change according to the priority score change rule exemplified in 4 (step 21).
As the value before the change of the priority score, the priority of the keyword associated with the destination candidate (destination data) is used, and a predetermined value (predetermined value) is used as the value of the destination candidate for which no keyword exists. For example, 50) is used.

  Next, the information processing control device 20 displays a list of destination candidates on the destination setting screen in descending order of priority score that changed the destination candidates (step 22), and the destination candidates selected by the user among the displayed destination candidates are displayed. The final destination is set (step 23), stored in a predetermined area of the RAM 24, and the process ends.

8 to 15 exemplify the difference of destination candidates displayed in a list according to the score changed according to the priority score changing rule of FIG.
FIG. 8 shows a difference in list display when a seasonal change rule is applied as the priority score change rule.
FIG. 8A shows a state where the selected keyword “Lake Biwa” is displayed in the input character field 423. When the completion key 427 is selected in this state, if the current situation is summer, the RAM 24 according to a rule for increasing the priority score of candidate points (destinations) including keywords related to camping, golf, beaches, and pools. The score of the narrowed destination candidates stored in is changed, and as shown in the result (b), a list is displayed in the order of “Lake Biwa Campsite”, “Lake Biwa Country Club”,.
Similarly, if the season is winter, as shown in (c), a list is displayed in the order of “Lake Bokuko Ski Area”, “Lake Biwa Campsite”,. If the season is not specified, a list is displayed in the order of “Lake Biwa Tower”, “Lake Biwa Amusement Park”, etc., as shown in (d).

FIG. 9 shows a difference in list display when a change rule according to weather is applied as the priority score change rule.
As shown in FIG. 9A, when the completion key 427 is selected in a state where the selected keyword “Nagoya” is displayed, keywords related to a zoo, a pool, and an amusement park are displayed if the current situation is clear. According to the rules for increasing the priority score of the candidate points (destinations) to be included, as shown in (b), the list is displayed in the order of “Nagoya Municipal Higashiyama Zoo” “Nagoya Amusement Park”.
Similarly, if the current situation is rain, a list is displayed in the order of “Nagoya Dome” “Nagoya Port Aquarium”... As shown in (c), and “JR” as shown in (d) if there is no weather designation. Listed in the order of Nagoya Nakashimaya, “Nagoya Yotsukoshi Sakae Main Store”.

FIG. 10 shows a difference in list display when a change rule according to time is applied as a priority score change rule.
As shown in FIG. 10 (a), when the completion key 427 is selected in a state where the selected keyword “Nagoya” is displayed, candidates that include keywords related to amusement parks and golf if the current situation is morning. According to the rules for increasing the priority score of a point (destination), as shown in (b), a list is displayed in the order of “Nagoya Amusement Park”, “Nagoya Golf Course”,.
Similarly, if the current situation is in the evening, as shown in (c), a list is displayed in the order of “Udon Nokoro Nagoya Isshin”, “Uny Nagoya”,.

FIG. 11 shows a difference in list display when a change rule by calendar is applied as a priority score change rule.
As shown in FIG. 11 (a), when the completion key 427 is selected in a state where the selected keyword “Cosny” is displayed, if it is the first day of consecutive holidays, it is shown in (b) by the priority score changing rule. In this way, the list is displayed in the order of “Cosney Land”, “Cosny Sea”, etc. that are far from the current location. Similarly, when it is the last day of consecutive holidays or weekdays, as shown in (c), a list is displayed in the order of “Cosney Store JR Nagoya Nakashima” “Cosny Shop”.

FIG. 12 shows a difference in list display when a change rule according to the current location is applied as the priority score change rule.
As shown in FIG. 12A, when the completion key 427 is selected with the selected keyword “Udon” displayed, if the registered home is Tokyo, the current location of the vehicle is Nagoya. Since it is not around the home, as shown in (b), the list is displayed in the order of “Yamamoto and Sohonten”, “Misoni with miso stew” including keywords related to tourist information, folk art stores, and specialty products. Similarly, if your current location is Tokyo, it is around your home, and as shown in (c), in the order of “Izumi ず / ○ △ store”, “Sagami / △ □ store”, etc., including keywords related to supermarkets and family restaurants. A list is displayed.

FIG. 13 shows a difference in list display when a change rule according to a destination is applied as a priority score change rule.
As shown in FIG. 13 (a), when the completion key 427 is selected in a state where the selected keyword “saiki” is displayed, if Nagashima Superland is already set as the destination, As shown in (b) by the priority score change rule that gives priority to the suburbs and destination directions, “Saiki Factory / Jazz Dream Nagashima” close to the destination, “Saiki Dental Clinic / Nagoya City” in the same direction as the destination Listed in the order of “Showa Ward”.
On the other hand, if the destination is not set, the list is displayed in the order of “Saiki Shop Bee Square / Nagoya City”, “Saiki Japan / Higashi Ward in Nagoya City”, etc. existing around Nagoya as the current location.

FIG. 14 shows a difference in list display when a change rule by location is applied as a priority score change rule.
As shown in FIG. 14 (a), when the selected keyword is “Amusement park”, Naka-ku, Nagoya, and the current location is Nagoya, as shown in FIG. “Nagashima Super Land: 8 km” is close to the nearby IC, and “Higashiyama Amusement Park: 6 km” is the farthest from the nearest IC.
In the list display, 8 km and 6 km are distances from the current position. Nagashima Super Land, which is short from the IC, is displayed with priority even if it is far from the current location.

FIG. 15 shows a difference in list display when a genre change rule is applied as a priority score change rule.
In FIG. 15A, when the completion key 427 is selected while the input character “HI” is input, if the registered home is Naka-ku, Nagoya, priority is given to food, shopping, and leisure. As shown in (b), according to the score that increases the ranking score, “Higashiyama Amusement Park;” Leisure ”“ Hirabari ○ △ □; Leisure ”“ 100 Yen Shop Daisy; Shopping ”“ Kakudonald Hirabari Station Store; "... are listed in the order.

In this way, by applying the priority score changing rule and changing the list order, it is possible to display a list of destination candidates in an order more suitable for the user.
In addition, by changing the priority score change rule to be applied as described above and the keyword for the applied item, a list display more suitable for the user's preference can be obtained.

In the embodiment described above, the current situation (corresponding season, corresponding weather, corresponding time, type, region) for changing the priority of the keyword is stored in the keyword data file 58, and the list display order of destination candidates is determined. Although the case where the rule for storing is stored in the priority score change rule file 59 has been described, both may be shared.
In this case, the rule may be stored in any one of the keyword data files, or may be stored independently as a change rule. Moreover, you may make it store in a program.

In the embodiment described above, the case where a keyword is stored in the destination data has been described. However, an ID (identification number) may be assigned to each keyword in the keyword data file, and the ID may be stored in the destination data. .
In the embodiment described above, keywords for names, addresses, and genres are stored, and keywords are narrowed down and displayed for each name, address, and genre. However, any one of names, addresses, and genres is used. Or you may make it apply about two.

[Second Embodiment]
In the first embodiment described above, the navigation device that is assumed to be used in Japan has been described. Specifically, in the first embodiment, a navigation device of Japanese specifications in which the input keyboard 422 is configured with 50 sound keys that are Japanese input units, and the destination data file 56 stores data related to destination search in Japan. explained.
However, the environment in which the navigation device is used is not limited to Japan. By making the specification of the input device 41 and each data correspond to the region, the input function using the keyword data described above can be used in various countries.

Therefore, in the second embodiment, a US-specific navigation device will be described as an example of a navigation device for use outside Japan.
The system configuration of the navigation apparatus to which the second embodiment is applied and the flow of destination setting processing are basically the same as those of the first embodiment.
In description of 2nd Embodiment, detailed description is abbreviate | omitted using the same code | symbol about the structure which overlaps with 1st Embodiment mentioned above, and a different part is demonstrated.

FIG. 16 conceptually shows the contents of the destination data (point information) stored in the destination data file 56.
As shown in FIG. 16, in the navigation device of the US specification, the name of the destination data is registered as a search key as it is. Further, unlike the Japanese specification, the search key of the US specification is separated for each word by a space or the like.
The search key is the “name” of the destination, and this search key corresponds to the input device (the alphabet key of the touch panel in the second embodiment), and uppercase and lowercase letters are mixed. Execute without recognizing the difference between lowercase letters.
In the second embodiment, the destination data file 56 stores names of destination data in the United States.

FIG. 17 conceptually shows the contents of the keywords stored in the keyword data file 58. Each keyword is composed of words constituting the name of each destination data.
As shown in FIG. 17, also in the navigation device of the US specification, priority is defined for each keyword indicated by an alphabetic character string, as in the first embodiment.
For example, the priority of the point candidate including the keyword “Montana” is defined as “83”, and the region is defined as “northwest”. Therefore, if the current location is within the range of the northwest, the priority is A predetermined n points (for example, 3 points) are added from 83, and the priority is changed to 86.
In addition, there are keywords in which related keywords are set. This related keyword is a word that is frequently input as a search word together with the keyword, for example, “golf” or “university” for the keyword “Montana” and the destination notation together with the keyword. A word constituting part or all of the word is set.

Note that the period of the corresponding season defined in the keyword data file 58 is set so as to correspond to the country or region where the navigation device is used. For example, when the usage target is Japan, the period from December to February is set as winter, and when the usage target is Australia located in the southern hemisphere, the period from June to August is winter. Is set as
In addition, the corresponding time specified in the keyword data file 58 is also set so as to correspond to the country or region where the navigation device is used. For example, in a country or region in which a daylight saving time system is introduced, during the daylight saving time period, the response time is set to be advanced by one hour.

FIG. 18 shows the input device 41 ′ and the display 42 in the navigation device of the US specification.
In FIG. 18, alphabetical notation is used to describe a US-specific navigation device, but keys and display areas having the same functions as those in the first embodiment (FIG. 5) are denoted by the same reference numerals.
As shown in FIG. 18, the input keyboard 422 ′ is composed of keys for inputting alphabets A to Z.

In this way, in the navigation device in which the specifications of the input device 41 and each data are adapted to the use target US, the destination setting process similar to that in the first embodiment (FIG. 6) described above is executed.
However, in the second embodiment, alphabetic characters (character strings) are input using the input keyboard 422 ′, and the above-described US-specific destination data file 56 and keyword data file 58 are referred to.

FIG. 19 exemplifies the display state of the destination setting screen for the processing after step 17 in the US-specific navigation device.
FIG. 19A is a destination setting screen after the alphabet “M” is input from the input keyboard 422 ′. The input character “M” is displayed in the input character column 423, and keywords (names) “Montana”, “Maine”, “Mississippi”, etc., that partially match the input character “M” are narrowed down, and the name tab 421a. Are displayed in the keyword field 421.
When the address tab 421b is touched on the destination setting screen of FIG. 19A, the address keyword field 421 is displayed at the top, and the address keywords narrowed down corresponding to the input character “M” are displayed. Is displayed.

When the narrowed keyword is displayed in the keyword column 421 as a selectable key, the priority of each keyword is set based on the priority score changing rule (FIG. 4), as in the first embodiment. Change from the corresponding season, weather, time, type, region, etc.). Then, keywords are displayed in the keyword column 421 in descending order of priority.
In FIG. 19A, in the abc order, the keyword “Maine” is displayed before “Mississippi” and “Montana”, but “Montana” having a higher priority (see FIG. 17) is displayed first. .
As described above, even in the US-specific navigation device, it is possible to display a keyword that matches the user request by changing the display order of the keyword according to the priority.

When the keyword “Montana” in the keyword column 421 is selected from the state of FIG. 19A, the information processing control device 20 changes the input character displayed in the input character column 423 to the selected “Montana”. change. In this case, if another keyword has already been displayed in the input character field 423 by the previous operation, the newly selected keyword is displayed after the keyword.
Then, the information processing control device 20 narrows down the selected keyword and the destination candidates.
For example, when the keyword “Montana” is selected in FIG. 19A, “Montana” is narrowed down, and other “Maine” and “Mississippi” are deleted from the keyword.

FIG. 19B is a destination setting screen after the keyword “Montana” is selected on the destination setting screen of FIG.
As shown in FIG. 19B, the selected keyword “Montana” is displayed in the input character column 423 in place of the input character “M”. In the keyword column 421, the keyword “Montana Station” further narrowed down and related keywords “golf” and “university” related to the selected keyword “Montana” are displayed.
Note that related keywords are also displayed in descending order of priority after being changed based on the current situation (time, place, etc.), including the keywords, as in the first embodiment.
As described above, also in the navigation device of the US specification, the destination can be searched while repeating the selection of the keyword displayed in the list as in the first embodiment.

20 to 27 exemplify the difference of destination candidates displayed in a list according to the score changed according to the priority score changing rule of FIG. 4 in the navigation device of the US specification.
FIG. 20 shows a difference in list display when a seasonal change rule is applied as the priority score change rule.
FIG. 20A shows a state where the selected keyword “Resort” is displayed in the input character field 423. When the completion key (Enter) 427 is selected in this state, as in the first embodiment, if the current situation is summer, the priority score of a candidate point (destination) including a keyword related to summer is increased. In accordance with the rules, the score of the narrowed destination candidates stored in the RAM 24 is changed, and as a result (b), “Laguna Beach Research” is preferentially displayed in a list.
Similarly, if the season is winter, as shown in (c), “Alpine Meadow Ski Resort” is preferentially displayed in a list. If there is no season designation, “Destination Land Resort” is preferentially displayed as a list as shown in (d).

FIG. 21 illustrates a difference in list display when a change rule according to weather is applied as the priority score change rule.
As shown in FIG. 21A, when the completion key (Enter) 427 is selected in a state where the keyword “vegas” is input and displayed in the input character field 423, if the current situation is clear, the priority score change rule As shown in (b), “Lake Las Vegas” is preferentially listed.
Similarly, if the current situation is rain, “Las Vegas Gasino” is preferentially listed as shown in (c), and if there is no weather designation, “Las Vegas Country Club” is shown as shown in (d). The list is displayed in the order of “Hotel Las Vegas”.

FIG. 22 shows a difference in list display when a change rule according to time is applied as a priority score change rule.
As shown in FIG. 22A, when the completion key (Enter) 427 is selected in a state where the keyword “club” is input and displayed in the input character field 423, if the current situation is morning, the priority score change rule As shown in (b), “Montana Golf Club” is preferentially displayed in a list.
Similarly, if the current situation is evening, a list is displayed in the order of “Pure Night Club”, “Kraber Nightclub”... As shown in (c), and if there is no time designation, “Celebrity” is shown as shown in (d). “Club Barber Salon” is preferentially listed.

FIG. 23 shows a difference in list display when a change rule by calendar is applied as the priority score change rule.
As shown in FIG. 23A, when the completion key (Enter) 427 is selected in a state where the keyword “destiny” is input and displayed in the input character field 423, if it is a holiday, according to the priority score change rule ( As shown in b), “Destination Land Resort” far from the current location is preferentially listed. Similarly, when it is a weekday, as shown in (c), “Destination's Character Warehouse” which is a nearby point is preferentially displayed in a list.

FIG. 24 shows a difference in list display when a change rule according to the current location is applied as the priority score change rule.
As shown in FIG. 24A, when the completion key (Enter) 427 is selected in a state where the keyword “destiny” is input and displayed in the input character field 423, when the current location is California, As described above, “Destination Land” including keywords related to California is preferentially displayed in a list. Similarly, if the current location is Chicago, “Destination Store” including keywords related to Chicago is preferentially displayed in a list as shown in (c).

FIG. 25 shows a difference in list display when a change rule by destination is applied as the priority score change rule.
As shown in FIG. 25A, when the completion key (Enter) 427 is selected in a state where the keyword “park” is input and displayed in the input character field 423, the Montana golf club has already been set as the destination. For example, “Mary Gomez Park” close to the destination and “Parkway Park” in the same direction as the destination as shown in FIG. , “Frank Montana Park” along the route are displayed in a list.
On the other hand, if the destination is not set, the list is displayed in the order of “Frank Montana Park”, “Marijan Hammann Park”, etc. existing around the current location.

FIG. 26 shows the difference in the list display when the change rule by location is applied as the priority score change rule.
As shown in FIG. 26A, when the completion key (Enter) 427 is selected in a state where the keyword “golf” is input and displayed in the input character field 423, as shown in FIG. “White Pines Golf Club: 9 km”, “Edgebook Golf Course: 8 km”, and “Tam O Hunter Golf Course: 7 km” in which the nearest IC is far away are displayed in order of the closest IC to the nearest IC.
Note that 9 km, 8 km, and 7 km in the list display are distances from the current position. Even if it is far from the current location, “White Pines Golf Club: 9 km” with a short distance from the IC is preferentially displayed.

FIG. 27 shows a difference in list display when a genre change rule is applied as a priority score change rule.
In FIG. 27A, when the completion key (Enter) 427 is selected in a state where the keyword “golf” is input and displayed in the input character field 423, it is shown in FIG. 27B based on the priority score change rule. Thus, the list is displayed in the order of “Billy Caldwell Golf Club (Leisure)”, “South Shore Golf Course (Leisure)”, “Ace Pro Golf Shop (Shopping)”, and so on.

  In this way, in the US-specific navigation device that inputs alphabets in the input character field 423, the priority order score change rule is applied and the list order is changed in the same manner as in the first embodiment, which is more suitable for the user. A list of destination candidates can be displayed in order.

In the second embodiment, as an example of a navigation device for use outside Japan, a navigation device provided with an alphabet key corresponding to English (English) input has been described. However, an inputable language is not limited to this.
You may make it be a navigation apparatus corresponding to arbitrary language inputs, such as German, Spanish, French, Arabic, Chinese, Korean, and Russian. For example, in the case of a navigation device that supports Chinese input, the input device 41 includes an input keyboard 422 that supports Chinese pinyin input.

The language to be input need not necessarily correspond to the country (region) to be used for the navigation device. For example, a navigation device that supports German input may be used in France. In this case, in the destination data file 56, the keyword data file 58, etc., data to be searched when performing destination search, that is, data to be compared with input characters (for example, destination name, keyword, address, etc.) ) Stores data corresponding to the input language.
In addition to the input language, data corresponding to the language of the country (region) to be used may be stored in the data to be searched.
In addition, data that is not a search target when performing destination search, for example, additional information data, need not store data corresponding to the input language. For example, data corresponding to the input language, data corresponding to the language of the country (region) to be used are stored as the data that is not the search target, Data corresponding to both languages of a given country (region) may be stored.

1 is a system configuration diagram of a navigation device to which the present embodiment is applied. It is explanatory drawing which represented notionally the content of the destination data (point information) memorize | stored in the destination data file. It is explanatory drawing which represented the content of the keyword stored in the keyword data file notionally. It is explanatory drawing showing the outline | summary of the priority score change rule. It is explanatory drawing showing an input device and a display. It is a flowchart showing the content of the destination setting process. It is explanatory drawing which illustrated the display state of the destination setting screen. It is explanatory drawing showing the difference of the list display when the change rule by a season is applied as a priority score change rule. It is explanatory drawing showing the difference of the list display at the time of the change rule by a weather being applied as a priority score change rule. It is explanatory drawing showing the difference in the list display when the change rule by time is applied as a priority score change rule. It is explanatory drawing showing the difference of the list display at the time of the change rule by a calendar being applied as a priority score change rule. It is explanatory drawing showing the difference in the list display when the change rule by a present location is applied as a priority score change rule. It is explanatory drawing showing the difference of the list display when the change rule by a destination is applied as a priority score change rule. It is explanatory drawing showing the difference in the list display when the change rule by a location is applied as a priority score change rule. It is explanatory drawing showing the difference in the list display when the change rule by a genre is applied as a priority score change rule. It is explanatory drawing which represented notionally the content of the destination data (point information) memorize | stored in the destination data file in the navigation apparatus of a US specification. It is explanatory drawing which represented notably the content of the keyword stored in the keyword data file in the navigation apparatus of a US specification. It is explanatory drawing showing the input device and the display in the navigation apparatus of a US specification. It is explanatory drawing which illustrated the display state of the destination setting screen in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display at the time of the change rule by a season being applied as a priority score change rule in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display when the change rule by a weather is applied as a priority score change rule in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display when the change rule by time is applied as a priority score change rule in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display at the time of the change rule by a calendar being applied as a priority score change rule in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display when the change rule by a present location is applied as a priority score change rule in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display when the change rule by a destination is applied as a priority score change rule in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display when the change rule by a location is applied as a priority score change rule in the navigation apparatus of a US specification. It is explanatory drawing showing the difference of the list display at the time of the change rule by a genre being applied as a priority score change rule in the navigation apparatus of a US specification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Current position detection apparatus 20 Information processing control apparatus 40 Input / output apparatus 41 Input apparatus 42 Display 50 Information storage apparatus 71 Touch panel

Claims (4)

Destination data storage means for storing destination data to be searched;
A character input means for inputting a search character;
Search means for searching for destination data including the inputted characters as a candidate destination;
For each of the searched candidate destinations, priority determining means for determining the priority to display based on the contents and the current situation;
A navigation device comprising: a display unit that preferentially displays the determined candidate destination with a high priority. Priorities are defined for each destination data,
The priority determining means changes the priority defined for the candidate destination based on a change rule for changing the priority according to the content of the candidate destination and the current situation,
The navigation apparatus according to claim 1, wherein the display unit preferentially displays the candidate destination having a higher priority after the change.   The change rule is defined for at least one of season, weather, time, relation to consecutive holidays, current location, destination, distance from nearest IC to destination, and genre. The navigation device according to claim 1 or 2. Computer
A character input means for inputting a search character;
Search means for searching for destination data including the input characters as candidate destinations from destination data storage means for storing destination data to be searched;
For each of the searched candidate destinations, priority determining means for determining the priority to display based on the contents and the current situation;
A navigation program for functioning as display means for preferentially displaying the determined candidate destination with a high priority.

Images