JP2010237166A - Navigation system, facility retrieval method, and facility retrieval program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system, a facility retrieval method and a facility retrieval program, capable of enhancing retrieval performance for a facility. <P>SOLUTION: This navigation system 1 includes a geographical information storage part 17 for storing a facility data including names of the facilities and features of appearances thereof, and a navigation unit 6 for acquiring the feature of the appearance as a condition as to the guide objective facility, for acquiring the name of the facility as a condition as to the facility with an adjacent relation to the guide objective facility, and for retrieving the facility with the adjacent relation to the facility corresponding to the acquired feature of the appearance, and corresponding to the acquired name, as the guide objective facility, using the geographical information storage part 17. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation system, a facility search method, and a facility search program.

  Conventionally, navigation devices store information about facilities and points, and have a search function for searching for target facilities when conditions such as name, area, and genre are specified (for example, patent documents). 1, see Patent Document 2).

JP 2006-194817 A JP 2007-271277 A

  However, when a user searches for a facility by specifying a name as a search condition, it is necessary to specify the condition in more detail when the number of searched facilities is large. Therefore, it is conceivable to search for facilities by specifying areas and genres as conditions, but there are cases where the number of facilities cannot be narrowed down. Therefore, when the name of the target facility is not known, it is difficult to narrow down the facility to be searched.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a navigation system, a facility search method, and a facility search program that can improve the facility search performance.

  The navigation system according to claim 1, a facility information storage unit that stores facility information including a facility name and a feature of an appearance, an appearance acquisition unit that acquires an appearance feature as a condition related to a facility to be guided, Using the name acquisition means for acquiring a name and the facility information storage means as a condition relating to the facility adjacent to the guidance target facility, the facility corresponding to the acquired appearance feature, the acquired name The gist of the present invention is that it includes search means for searching for a facility that is adjacent to a facility corresponding to the above as a facility to be guided.

  According to the first aspect of the present invention, the facility to be guided is searched using the facility information storage means by the feature of the appearance of the facility to be guided and the name of the facility adjacent to the facility to be guided. Is done. For this reason, even when the user cannot narrow down the target facilities, the target facilities can be more easily identified by limiting the features of the appearance of the facilities and the names of the facilities that are adjacent to each other.

  The navigation system according to claim 2 is the navigation system according to claim 1, wherein the search means uses the facility information storage means to extract a facility corresponding to the acquired name, and the extracted facility The facility that is adjacent to each other and that corresponds to the acquired appearance feature is extracted as the facility to be guided.

According to the second aspect of the present invention, a facility corresponding to the acquired name is extracted, and a facility that is adjacent to the extracted facility and corresponds to the acquired appearance feature is extracted as a facility to be guided. To do. Therefore, even when the user does not store the name of the target facility, the target facility can be easily specified.

  The navigation system according to claim 3 is the navigation system according to claim 1, wherein the search means uses the facility information storage means to extract a facility corresponding to the acquired name, and the extracted facility The facility corresponding to the acquired appearance feature is determined to be adjacent or not, and the facility corresponding to the acquired name and the facility corresponding to the acquired appearance feature are adjacent to each other When it is determined, the facility corresponding to the acquired appearance feature is extracted as the facility to be guided.

  According to the third aspect of the present invention, the facility corresponding to the acquired name is extracted, and it is determined whether or not the facility corresponding to the acquired appearance feature is adjacent to the extracted facility. When the facility corresponding to the acquired appearance feature and the facility corresponding to the acquired appearance feature are adjacent to each other, the facility corresponding to the acquired appearance feature is extracted as a guidance target facility. Therefore, even when the user does not store the name of the target facility, the target facility can be easily specified.

  A navigation system according to a fourth aspect is the navigation system according to the third aspect, wherein the facility information is associated with facility information of a facility that is adjacent to the facility, and the search means has the adjacent relationship. Based on the facility information associated with the facility information of a certain facility, it is determined whether the facility corresponding to the acquired name and the facility corresponding to the acquired appearance feature are adjacent to each other.

  According to the invention described in claim 4, the facility to be guided is searched using the facility information storage means by the feature of the appearance of the facility to be guided and the name of the facility adjacent to the facility to be guided. Is done. Therefore, even when the user does not store the name of the target facility, the target facility can be easily specified.

  The navigation system according to claim 5 is the navigation system according to claim 3, wherein the facility information further includes location information of the facility, and the search means acquires the location information based on the location information of the facility. It is determined whether or not the facility corresponding to the name and the facility corresponding to the acquired appearance feature are adjacent to each other.

  According to the fifth aspect of the present invention, the facility to be guided is searched for using the facility information storage means by the feature of the appearance of the facility to be guided and the name of the facility adjacent to the facility to be guided. Is done. Therefore, even when the user does not store the name of the target facility, the target facility can be easily specified.

  The navigation system according to claim 6 is the navigation system according to claims 1 to 4, wherein the facility information includes at least one of a color, a rank, or a height as a feature of the appearance of the facility. .

  According to the invention described in claim 6, for this reason, even if the user stores only one of the color, floor number, and height of the facility around the target facility, the target facility is stored. It becomes easy to identify.

According to the invention described in claim 7, in the facility search method using the control means for searching for facilities, the facility search method using the control means for searching for facilities includes a name and an appearance characteristic for each facility. Further using the facility information storage means that stores the information, the control means acquires appearance features as conditions relating to the guidance target facility, and acquires a name as a condition relating to the facility adjacent to the guidance target facility. In addition, using the facility information storage means, the facility that corresponds to the feature of appearance and that is adjacent to the facility corresponding to the acquired name is searched as a facility to be guided. To do.

  According to the invention described in claim 7, the facility to be guided is searched using the facility information storage means by the feature of the appearance of the facility to be guided and the name of the facility adjacent to the facility to be guided. Is done. For this reason, even when the user does not store the name of the target facility, the target facility can be specified more easily.

  According to the invention described in claim 8, in the facility search program using the control means for searching for facilities, the facility information storage means storing facility information including the name of the facility and the features of the appearance is further used, and the control means As a condition related to the facility to be guided, an external appearance acquiring means for acquiring appearance characteristics, a name acquiring means for acquiring a name as a condition regarding a facility adjacent to the facility to be guided, and the facility information storage means And a facility corresponding to the acquired feature of the appearance, and having a facility adjacent to the acquired facility corresponding to the acquired name as a facility to be guided as a gist. To do.

  According to the invention described in claim 8, the facility to be guided is searched using the facility information storage means by the feature of the appearance of the facility to be guided and the name of the facility adjacent to the facility to be guided. Is done. For this reason, even when the user does not store the name of the target facility, the target facility can be specified more easily.

The block diagram of a navigation system. Conceptual diagram of facility data. Conceptual diagram of facility data. The flowchart which shows the process sequence of this embodiment. (A) is a search screen, (b) is a screen view of a search result screen.

Hereinafter, an embodiment in which the present invention is embodied in a navigation system will be described with reference to FIGS. FIG. 1 is a block diagram of the navigation system 1 of the present embodiment.
The navigation system 1 of this embodiment includes a navigation device 2, a position detection sensor 3, a touch panel display 4, and a speaker 5. The navigation device 2 includes a navigation unit 6 including a CPU 11, a RAM 12, and a ROM 13, a vehicle-side interface (I / F) 14, an image processor 15, an audio processor 16, and a geographic information storage unit 17 as a facility information storage means, and a facility search. The program is stored. The navigation unit 6 constitutes an appearance acquisition unit, a name acquisition unit, a search unit, and a control unit.

  The navigation device 2 acquires a detection signal from the position detection sensor 3 via the vehicle-side I / F 14 and calculates the vehicle position. In the present embodiment, the position detection sensor 3 includes a GPS receiver 30, a vehicle speed sensor 31, a gyro sensor 32, and the like. The navigation unit 6 detects an absolute position such as latitude / longitude by radio wave navigation based on the GPS receiver 30. The navigation device 2 calculates a relative position from the reference position based on the vehicle speed sensor 31 and the gyro sensor 32 by autonomous navigation. Then, the vehicle position is specified by combining the absolute position and the relative position represented by latitude and longitude.

  The image processor 15 reads image data from an image data storage unit (not shown), reads map drawing data 19 from the geographic information storage unit 17, and displays various screens on the touch panel display 4. The touch panel display 4 is a device having a screen display function and a contact position detection function for detecting a contact position of a finger.

The voice processor 16 reads voice data from a voice data storage unit (not shown) and outputs various guidance voices from the speaker 5.
The geographic information storage unit 17 stores road network data 18, map drawing data 19, and POI (Point Of Interest) data 20. Road network data 18
It has node data and link data. Nodes are set at intersections and road end points, and links are set between the nodes. The node data includes node coordinates and identifiers, and the link data includes link identifiers, connection node identifiers, link costs used for route search, and the like. The navigation device 2 multiplies the link cost corresponding to the link from the current location to the destination by a predetermined coefficient, sums up these link costs, and searches for various recommended routes that minimize the total value. .

  The map drawing data 19 is data for displaying a map screen on the touch panel display 4 and includes road shape data for drawing a curved portion of a road and background data for drawing a region other than the road. is doing.

  The POI data 20 stores data relating to a specific point or facility. The POI data 20 includes facility data 21 (see FIG. 2) as facility information for assisting the search for a destination such as the name of each point and facility, coordinates as location information, telephone number, address, genre (type), and the like. )It is included. Further, the facility data 21 includes features of the appearance of the facility.

  FIG. 2 is a conceptual diagram showing a part of the facility data 21. The facility data 21 includes unit data 21J generated for each facility. Each unit data 21J includes a facility ID 21A, a facility name 21B, coordinates 21C, an appearance color 21D, a floor number 21E, presence / absence of adjacent facilities 21F, and an adjacent facility ID 21G. , 21H. The facility ID 21A indicates the ID of the facility, and the facility name 21B indicates the name of the facility. The coordinates 21C are coordinates that indicate the position of the facility two-dimensionally. The color 21D in the appearance indicates the color of the outer wall or the like of the facility, and the floor number 21E indicates the floor number of the facility or the building including the facility. The presence / absence of adjacent facility 21F indicates the presence / absence of a facility adjacent to the facility. When the presence / absence 21F of the adjacent facility is “present”, the facility ID of the adjacent facility is stored in the adjacent facility ID 21G on the left side or the adjacent facility ID 21H on the right side of the facility. In FIG. 2, description of the telephone number, address, genre, etc. of the facility is omitted.

For example, as shown in FIG. 3, for a facility 101 with a facility ID “1”, a facility 102 with a facility ID “31” and a facility 103 with a facility ID “2” on the left and right sides. When they are adjacent to each other, the adjacency relationship where the user faces the facility is stored. That is, “31” is stored in the adjacent facility ID 21F corresponding to the facility 101, and “2” is stored in the adjacent facility ID 21G.
(Processing procedure)
Next, the procedure of the facility search process according to the present embodiment will be described with reference to FIGS.

  First, the navigation unit 6 determines whether or not to start a search by appearance for setting a facility to be guided, that is, a facility intended by the user (step S1). Specifically, for example, when an input operation such as a touch panel operation for displaying the search screen 45 for searching by appearance shown in FIG. 5A is performed, it is determined that the search by facility appearance is started.

When an operation for displaying a screen other than the search screen for search by appearance is performed, it is determined in step S1 that search by appearance is not performed (NO in step S1), and other search conditions are input. It is determined whether or not (step S2). When other search conditions are input (YES in step S2), a search according to the input conditions is performed (step S3). Then, it progresses to step S7 and a search result is displayed. When an operation for returning to the previous screen or an operation for ending the search is performed, it is determined that no other condition is input (NO in step S2), the search process is temporarily ended, and the process returns to step S1. Return.

  On the other hand, when the user forgets the name of the target facility, a search based on the appearance of the facility is performed. When the navigation unit 6 determines that the search based on the appearance of the facility is to be started (YES in step S1), the navigation unit 6 displays a search screen 45 shown in FIG. The search screen 45 includes a color designation unit 45A, a floor designation unit 45B, a name input unit 45C for peripheral facilities, an operation unit 45D for executing a search, an operation unit 45E for returning to the previous screen, and an operation unit for terminating the search. 45F is displayed. The color designation unit 45A is an operation unit for designating a color in the appearance of the target facility as a feature of the appearance of the target facility. When the color designation unit 45A is operated, the target facility Displays an input screen for specifying the color of the. Then, the navigation unit 6 acquires the color designated by the user on the displayed input screen as a feature of the appearance of the target facility. For example, when the user memorizes that the target facility is a “red building”, the user designates “red” by operating the color designation unit 45A. In this case, the navigation unit 6 acquires the designated “red” as the feature of the appearance of the facility.

  The floor designating unit 45B is an operation unit for designating the floor number of the target facility as a feature of the appearance of the target facility. When the floor designating unit 45B is operated, the floor designating unit 45B is used for designating the floor number. Display the input screen. Then, the navigation unit 6 acquires the floor specified by the user on the displayed input screen as a feature of the appearance of the target facility. The floor number of the target facility may be specified as “1st floor” or “2nd floor”, or specified within the range of floors such as “1st to 2nd floor” or “3rd to 4th floor”. May be. For example, when the user does not remember the name of the target facility and stores that the target facility is a “five-story” facility, the user designates “5” by operating the floor designation unit 45B. Designate the range of floors that includes “floor” or “fifth floor”. In this case, the navigation unit 6 acquires the feature of the appearance of the facility for the purpose of the floor range including the designated “5th floor” or “5th floor”.

  The name input unit 45C is an operation unit for inputting the names of surrounding facilities existing around the target facility. A peripheral facility is a facility that is adjacent to a target facility. For example, even if the name of the target facility is not remembered, the name of the facility constructed around it may be remembered. In such a case, the user inputs not only the appearance feature of the target facility but also the name of the surrounding facility using the name input unit 45C. When the name input unit 45C is operated, for example, an input screen for designating a name is displayed. Then, the navigation unit 6 acquires the name designated by the user on the displayed input screen as the name of the surrounding facility.

  In step S5, the process waits for a condition to be input on the search screen 45. When the feature of the appearance of the target facility and the name of the surrounding facility are specified and the operation unit 45D for searching is operated, it is determined that the condition is input (YES in step S5), and the facility data 21 is used. Then, an appearance search is performed based on the acquired feature and name of the appearance (step S6). That is, a facility that corresponds to the acquired feature of the appearance and is adjacent to the facility corresponding to the acquired name is searched.

Specifically, referring to the facility name 21B of the facility data 21, a facility that matches the acquired name is extracted, one of the extracted facilities is set as a target facility, and the adjacent facility ID 21G of the target facility is set. The facility ID stored in the adjacent facility ID 21H is acquired. Next, for each of the facilities corresponding to the acquired facility ID, it is determined whether or not they match the appearance characteristics with reference to the color 21D and the floor number 21E. If it is determined that it matches the acquired appearance characteristics, the target facility is determined to be adjacent to the facility corresponding to the acquired appearance characteristics, and the facility is determined to match the appearance characteristics. Extract as The above processing is executed with all the extracted facilities as target facilities.

  When the appearance search is completed in this way, the search result is displayed on the touch panel display 4 (step S7). The search result display screen includes, for example, a search result list 46A, each operation unit 46B to 46C for narrowing down, an operation unit 46E for returning to the previous screen, and a search, as in the search result screen 46 shown in FIG. An operation unit 46F for ending is displayed. The search result list 46A displays a list of destination candidates narrowed down by limiting the features of the appearance of the target facility and the names of surrounding facilities. For this reason, it becomes easy to understand the desired destination, and the user can more easily determine and select the location of the facility that has been visited in the past.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the navigation system 1 includes the geographic information storage unit 17 that stores the facility data 21 including the name of the facility and the features of the appearance. In addition, the navigation unit 6 acquires the feature of the appearance of the facility input on the touch panel display 4 as the condition related to the guidance target facility, and acquires the name as the condition regarding the facility adjacent to the guidance target facility. Then, the facility corresponding to the acquired feature of the appearance and having the adjacent relationship with the facility corresponding to the acquired name is searched from the geographic information storage unit 17 as the facility to be guided. For this reason, even when the target facility cannot be narrowed down, the user can specify the target facility more easily by limiting the feature of the appearance of the facility and the name of the facility in the adjacent relationship.

  (2) In the above embodiment, the facility corresponding to the acquired name is extracted using the geographic information storage unit 17, and the facility that is adjacent to the extracted facility and that corresponds to the acquired appearance feature is guided. Extract as target facility. For this reason, even when the target facility cannot be narrowed down, the user can specify the target facility more easily by limiting the feature of the appearance of the facility and the name of the facility in the adjacent relationship.

  (3) In the above embodiment, the facility data 21 includes a color or the floor number of the facility as a feature of the appearance. For this reason, even when the user stores only the color or the number of floors for the facility to be guided, the facility to be guided is easily identified.

In addition, you may change the said embodiment as follows.
In the above embodiment, in step S5, the feature of the appearance of the target facility and the name of the surrounding facility are simultaneously acquired and searched when starting the search. The feature of the appearance of the target facility and the names of the surrounding facilities may be acquired and searched step by step.

In the above embodiment, referring to the facility name 21B of the facility data 21 in step S6, the facility that matches the acquired name is extracted, the extracted facility is identified as the target facility, and the identified target facility The facility ID stored in the adjacent facility ID 21G and the adjacent facility ID 21H is acquired. Then, for each facility corresponding to the acquired facility ID, the color 21D and the floor number 21E are referred to and it is determined whether or not it matches the appearance feature. Then, if it is determined that it matches the acquired appearance feature, the target facility is determined to be adjacent to the facility corresponding to the acquired appearance feature, and the facility determined to match the appearance feature is the target. Extracted as a facility. Instead, referring to the facility name 21B of the facility data 21, the facility that matches the acquired name is extracted as the target facility, the facility corresponding to the acquired appearance feature is specified, and the target facility is specified. A facility corresponding to the feature of appearance acquired by the control facility when the distance between facilities is calculated based on position information (coordinates) with the facility and the calculated distance between facilities is within a predetermined distance (for example, 100 m). The facility corresponding to the acquired appearance feature may be extracted as a target facility.

  In the above embodiment, the name of the facility is acquired as a condition related to the surrounding facility. Instead of this, the genre of the facility and the area where the facility exists may be acquired. And you may make it search based on the genre and area which are not shown in figure stored in the facility data 21. FIG.

The facility data 21 includes the floor number 21E of the facility, but may include a height such as “10 m to 30 m”.
In the above-described embodiment, on the search screen 45, it may be possible to specify which side facility having the name specified by the user is located toward the target facility.

  The navigation system may be embodied in a system including a mobile terminal possessed by the user and a server connectable to the mobile terminal in addition to the system mounted on the vehicle.

  DESCRIPTION OF SYMBOLS 1 ... Navigation system, 6 ... Guidance facility condition acquisition means, appearance characteristic acquisition means, navigation unit as search means and control means, 17 ... Geographic information storage section as facility information storage means, 21 ... Facility data as facility information, 21D ... color, 21E ... floor, 101-103 ... facility.

Claims (8)

Facility information storage means for storing facility information including the name of the facility and features of the appearance;
Appearance acquisition means for acquiring appearance features as conditions regarding facilities to be guided,
Name acquisition means for acquiring a name as a condition related to a facility adjacent to the facility to be guided,
Searching means for searching, as a facility to be guided, a facility that corresponds to the acquired feature of the appearance and that is adjacent to the facility corresponding to the acquired name by using the facility information storage unit. A navigation system characterized by comprising. The navigation system according to claim 1,
The search means includes
Using the facility information storage means, a facility corresponding to the acquired name is extracted, and a facility that is adjacent to the extracted facility and corresponds to the acquired appearance feature is defined as the facility to be guided. A navigation system characterized by extracting. The navigation system according to claim 2, wherein
The search means includes
Using the facility information storage means, extract a facility corresponding to the acquired name, for the extracted facility, determine whether or not the facility corresponding to the acquired appearance features are adjacent to each other,
When it is determined that the facility corresponding to the acquired name and the facility corresponding to the acquired appearance feature are adjacent to each other, the facility corresponding to the acquired appearance feature is extracted as the guidance target facility. A navigation system characterized by that. The navigation system according to claim 3,
The facility information is associated with facility information of a facility adjacent to the facility,
Whether the facility corresponding to the acquired name and the facility corresponding to the acquired appearance feature are in an adjacent relationship based on the facility information associated with the facility information of the facility in the adjacent relationship A navigation system characterized by determining whether or not. The navigation system according to claim 3,
The facility information further includes location information of the facility,
The searching means determines whether or not the facility corresponding to the acquired name and the facility corresponding to the acquired appearance feature are adjacent to each other based on the location information of the facility. Navigation system. In the navigation system according to any one of claims 1 to 5,
The navigation system according to claim 1, wherein the facility information includes at least one of a color, a floor number, and a height as an appearance feature. In the facility search method using the control means for searching for facilities,
Further using facility information storage means storing facility information including the name and appearance characteristics of each facility,
The control means is
As a condition related to the facility targeted for guidance,
As a condition regarding the facility that is adjacent to the facility to be guided, the name is acquired,
A facility search characterized in that, using the facility information storage means, a facility corresponding to an appearance feature and having a neighboring relationship with a facility corresponding to the acquired name is searched as a facility to be guided. Method. In a facility search program using a control means for searching for facilities,
Further using facility information storage means for storing facility information including the name of the facility and features of the appearance,
The control means;
Appearance acquisition means for acquiring appearance features as conditions regarding facilities to be guided,
Name acquisition means for acquiring a name as a condition related to a facility adjacent to the facility to be guided,
Using the facility information storage means, functions as a search means for searching for a facility corresponding to the acquired feature of the external appearance and adjacent to the facility corresponding to the acquired name as a facility to be guided A facility search program characterized by

Images