JP2004294257A - Navigation system, program therefor and record medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To freely set the category of landmarks displayed according to the traveling place, environment and circumstances. <P>SOLUTION: The navigation system surveying a route to a destination and guiding the route to the destination determines display conditions of marks according to the traveling place, environment and circumstances (step S32) when displaying a map (step S31), determines the marks displayed by the display conditions (step S33, S34), and displays the marks determined by the display conditions on the map based on the map data and the mark data (step S35). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a navigation device that searches for a route to a destination and provides route guidance to the destination, and a program and a recording medium for the device.
[0002]
[Prior art]
A navigation device searches for an optimal route to a destination and performs route guidance to the destination according to the searched route. A map is displayed when confirming, confirming the searched route, providing route guidance according to the searched route, and displaying icons (landmarks) of gas stations, convenience stores, public facilities, etc. on the map. This facilitates recognition of various facility information.
[0003]
When displaying the above landmarks, if the number of landmarks is too small, the map will not look good and the information tends to be insufficient.On the other hand, if the number of landmarks is too large, the landmarks will overlap or the original map will be displayed. Is extremely reduced. Therefore, for example, in Patent Document 1, it is determined whether the number of landmarks that can be displayed in one area exceeds a predetermined number, and when the number of landmarks exceeds the predetermined number, the number of landmarks exceeding the predetermined number is determined. Are not displayed, so that a good-looking map can be represented by an appropriate number of landmarks on any level of the map.
[0004]
[Patent Document 1]
Japanese Utility Model Laid-Open No. 7-29410 [0005]
[Problems to be solved by the invention]
However, in the conventional navigation device, in any case, the landmarks that can be set by the user are determined only by the genre, and the genre of the landmark displayed according to the traveling place, environment, and situation can be freely set. ,It can not be changed. For this reason, even if an attempt is made to change the display of the landmark according to the user's preference according to the place, environment, or situation in which the vehicle is traveling, the setting must be changed each time, and it is cumbersome and does not deserve practical use.
[0006]
[Means for Solving the Problems]
The present invention has been made to solve the above problems, and has an object to freely set a genre of a landmark displayed according to a traveling place, an environment, and a situation.
[0007]
For this purpose, the invention according to claim 1 is a navigation device that searches for a route to a destination and provides route guidance to the destination, and determines storage means for storing map data and mark data, and display conditions of the mark. Condition determination means, determination means for determining a mark to be displayed in the display condition, and display means determined by the condition determination means based on the map data and mark data stored in the storage means are determined by the determination means. Display control means for displaying the mark on the map.
[0008]
The present invention according to claim 2, wherein a current position detecting means for detecting a current position, a storage means for storing facility data including map data and facility mark data, and a designation means for designating a genre of the facility where the mark is to be displayed. Deciding means for deciding a mark to be displayed, and display control means for displaying the decided mark on a map, wherein the storage means, for each genre of the facility, is located at least a predetermined distance from the current location of the vehicle. Storing data indicating whether or not to display mark data, wherein the determining means determines a mark to be displayed from the storage means based on a designated genre and a distance between the vehicle and the facility. Things.
[0009]
The invention according to claim 3 is an inputting means for inputting a destination, a storage means for storing facility data including map data and facility mark data, a determining means for determining a mark to be displayed, and Display control means for displaying on a map, wherein the storage means stores, for each facility, data on whether or not the facility was selected as a destination in the past, and the determining means, Is determined as a mark that indicates a facility that has been selected as a.
[0010]
According to a fourth aspect of the present invention, there is provided a storage unit for storing facility data including map data and facility mark data, a designation unit for designating a genre of a facility for displaying a mark, and a decision unit for determining a mark to be displayed. Display control means for displaying the determined mark on the map, and display condition editing means for editing the display condition of the mark, wherein the storage means is edited by the display condition editing means for each facility genre. A display condition is stored, and the determination unit determines a mark to be displayed from the storage unit based on a designated genre and the edited display condition.
[0011]
The invention according to claim 5 is a navigation device program that searches for a route to a destination and provides route guidance to the destination, wherein a program for a mark determined according to a traveling place, an environment, and a situation is provided. Determining display conditions, determining a mark to be displayed based on the display conditions, and displaying, on a map, the mark determined by the display conditions based on the map data and the mark data. is there.
[0012]
The invention according to claim 6 is a recording medium for a navigation device that searches for a route to a destination and provides route guidance to the destination, comprising map data and mark data, a traveling place, an environment, and a situation. Each processing step of determining the display condition of the mark determined according to the above, determining the mark to be displayed under the display condition, and displaying the mark determined by the display condition on the map based on the map data and the mark data, And a program having the same.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a navigation device according to the present invention. An input device 1 for inputting information relating to route guidance, a current position detecting device 2 for detecting information relating to a current position of a vehicle, and a method for calculating a route. An information storage device 3 in which necessary navigation data and display guidance data necessary for guidance, a navigation program, and the like are stored. A central device that performs route search processing and display guidance processing necessary for route guidance and controls the entire system. The processing device 4 stores data necessary for navigation, and an information center provided via a communication line at the request of the driver, or an electronic device in which driver-specific data such as map data and destination data are stored in advance. An information transmitting / receiving device 5 for exchanging data with an information source such as a notebook, and an output device 6 for outputting information relating to route guidance It is obtained by al configuration. First, each configuration will be described.
[0014]
The input device 1 has a function of inputting a destination and instructing the central processing unit 4 to perform a navigation process by a driver's will so that the driver can output guidance information by voice and / or screen when necessary. As means for realizing the function, a touch switch or an operation switch for inputting a destination by a telephone number or coordinates on a map or requesting route guidance is provided. Of course, an input device such as a remote controller may be used. Here, a voice recognition device for enabling voice input and a recording card reading device for reading data recorded on an IC card or a magnetic card can be added.
[0015]
The information transmitting / receiving device 5 includes a VICS (Vehicle Information & Communication System) receiving device and a data transmitting / receiving device, which are traffic information acquiring means. VICS transmits road traffic information to vehicles in real time using FM multiplexing (text broadcasting), radio beacons, and optical beacons. FM multiplexing transmits coarse information over a wide area. Detailed information on a narrow area within a radius of about 10 km around the beacon, which can be received when the vehicle passes through the beacon. The VICS transmission data includes the degree of congestion (for example, the degree of congestion such as impassability, congestion, congestion, heavy traffic, normal traffic, etc.), the top position of congestion, the length of congestion, It is composed of regulations (construction information, road closures, etc.) and travel time (time required at a predetermined speed). The data transmission / reception device is, for example, a mobile phone or a personal computer, and exchanges information necessary for navigation with a traffic information center (for example, ATIS) at the request of a driver.
[0016]
The output device 6 has a function of outputting guidance information by voice and / or screen when the driver needs it, and a function of printing out data processed by the central processing unit 4 and realizing the functions. Means for displaying input data on a screen, automatically displaying route guidance on a screen in response to a driver's request, displaying data processed by the central processing unit 4 and data stored in the information storage device 3. A printer for printing out and a speaker for outputting route guidance by voice are provided.
[0017]
The display is constituted by a color CRT or a color liquid crystal display, and displays all screens necessary for navigation, such as a route setting screen, a section map screen, an intersection map screen based on map data and guidance data processed by the central processing unit 4. A button for setting route guidance, performing guidance during route guidance, and performing a screen switching operation is displayed on the screen while displaying in color. In particular, the passing intersection information such as the passing intersection name is displayed in color in a pop-up on the section map screen at any time. This display is provided, for example, in an instrument panel near the driver's seat, and the driver can check the current position of the own vehicle by looking at the section map and obtain information on a route from now on.
[0018]
The current position detecting device 2 is a device that detects information on the current position of the vehicle, and includes, for example, an absolute direction sensor including a geomagnetic sensor, a steering sensor, a relative direction sensor including a gyro, and the like. It has a distance sensor for detecting the traveling distance and a GPS receiver using a satellite navigation system (GPS).
[0019]
The information storage device 3 is an external storage device that stores a navigation program and data, and is a recording medium such as a CD-ROM. The program includes a map drawing unit, a route search unit, a route guidance unit, a current position calculation unit, a destination setting operation control unit, and the like, and an application unit for performing a signal output process of the navigation, an OS unit, and the like. A program for performing processing such as search, display output control required for route guidance, a program for voice output control required for voice guidance and data required for the same, and display information required for route guidance and map display Data is stored. The data includes map data necessary for route guidance (road map, house map, building shape map, etc.), intersection data, node data, road data, photograph data, registered point data, destination point data, guide road data, It consists of shape data, guidance data, destination data, destination direction data, detailed destination data, destination reading data, telephone number data, address data, landmark data, and other data files. It is remembered.
[0020]
The central processing unit 4 is a CPU for executing various arithmetic processing, and for storing important information (for example, a program for executing route search and route guidance, data for setting conditions, data of various parameters, etc.) in a nonvolatile manner. A flash memory (for example, an electrically erasable electrically erasable and programmable ROM (EEPROM)) which is a rewritable ROM (rewritable nonvolatile storage means), a program for performing a program check and update process of the flash memory (program reading) Means), which is a non-volatile storage means, a memory point for registering information of an arbitrary point by a driver's operation, frequency information accumulated by a learning function, error correction information of various detection means, and the like, which is stored for each individual. Information And a: specific a readable and writable volatile memory means for storing the (volatile manner) RAM (Static RAM e.g., electrically holding it SRAM which temporarily stored information). Furthermore, an image memory that stores image data used for screen display on a display, an image processor that extracts image data from an image memory based on a display output control signal from a CPU, performs image processing, and outputs the processed image to a display. A voice processor for synthesizing voices, phrases, a set of sentences, sounds, and the like read from the information storage device 3 based on a voice output control signal from the CPU, converting them into analog signals, and outputting the analog signals to a speaker; I have.
[0021]
The navigation program and data may be read from the outside via the information transmitting / receiving device 5. In this way, by reading the necessary navigation programs and data from the outside via the information transmitting / receiving device 5, the necessary programs can be obtained by using a recording medium such as a DVD instead of the CD-ROM for the information storage device 3. Alternatively, the latest data can be appropriately updated and stored, and the information storage device 3 can be omitted and stored directly in the flash memory or RAM of the central processing unit 4.
[0022]
Next, the operation will be described. FIG. 2 is a diagram for explaining the flow of the entire system of the navigation device according to the present embodiment. In the navigation of the above configuration, when the program of the route guidance system is started by the CPU of the central processing unit 4, first, the current position is detected by the current position detecting device 2 as shown in FIG. Is displayed (step S1), and a destination is set using a telephone number, an address, a facility name, a memory point, and the like (step S2). Then, a route search from the current position to the destination is performed (step S3). When the route is determined, the route guidance / display is repeated until the vehicle arrives at the destination while tracking the current position by the current position detection device 2 (step S4).
[0023]
FIG. 3 is a diagram showing a configuration example of road guidance data and the like. As shown in FIG. 3A, the guide road data file includes, for each of the number of roads n of the route searched by the route search, the road number, length, road attribute data, address of shape data, size, The address and size of the guidance data are stored as data necessary for route guidance, which is obtained by route search.
[0024]
As shown in FIG. 3B, the shape data has coordinate data including east longitude and north latitude for each of the number m of nodes when divided by a plurality of nodes (nodes) on each road. As shown in FIG. 3 (C), the guidance data includes intersection (or branch point) name, caution data, road name data, address of road name voice data, size, address of destination data, and data of size. .
[0025]
As shown in FIG. 3D, the destination data includes a destination road number, a destination name, an address of destination name voice data, a size and a destination direction data, and travel guidance data. Among the destination data, as shown in FIG. 3E, the destination direction data is invalid (do not use the destination direction data), unnecessary (do not guide), straight ahead, rightward, diagonally rightward, rightward return, This is data indicating information on a left direction, a diagonally left direction, and a direction returning to the left.
[0026]
In the navigation device according to the present embodiment, when a map is displayed in steps S1, S2, and S4, and a landmark is displayed on the map, a land displayed according to the displayed location, environment, or situation is displayed. The genre of the mark is set in advance. FIG. 4 is a diagram for explaining an example of a display genre setting process by the navigation device according to the embodiment, FIG. 5 is a diagram for explaining an example of a display condition specifying process, and FIG. 6 is a diagram of condition items and condition contents. FIG. 7 is a diagram for explaining an example, FIG. 7 is a diagram for explaining an example of a guide map display process, FIG. 8 is a diagram showing a setting example of a genre to be displayed corresponding to each display condition, and FIG. It is a figure which shows the example which displayed the landmark in a location interlocking type.
[0027]
In the display genre setting processing by the navigation device according to the present embodiment, for example, as shown in FIG. 4, a display genre is specified (step S11), and display conditions are specified for the specified display genre (step S12). . The display genres are classified into, for example, meals and shops, cars, lodging, play, public, transportation, culture, and others. If the respective categories are meals, for example, restaurants, family restaurants, fast food, French cuisine, Chinese food, coffee shops, etc. If the classification of stores, for example, convenience stores (all, each store), department stores, drugs, sports equipment, appliances, furniture and interiors, books, golf shops, etc. If the classification of cars, gas stations (all, Stands), parking lots, car supplies, car dealers, rental cars, bicycles / motorcycles, etc., if it is a category of accommodation, all accommodations, hotels and inns, etc. For public classifications such as aquariums, golf courses, hot springs, amusement parks, and campsites, government offices, police stations, libraries, hospitals, public For example, for transportation classifications, such as stations, airports, ports, IC / SA / PA, roadside stations, etc. For cultural classifications, landmarks / historic sites, shrines / temples / churches, castles / castles, museums / museums -If it is other classification such as museum, hall, etc., each facility item such as beauty salon / barber shop, cleaning, photography, bank (all banks), post office, ceremony hall, etc. is presented. These data indicate that display conditions are determined for each of the small categories, and for example, "restaurant" in FIG. 8 is not displayed in the early morning, but is displayed in the morning, noon, and night. These display conditions are determined for each condition shown in FIG.
[0028]
In the display condition designating process, for example, as shown in FIG. 5, for each of one or a plurality of designated display genres, a condition item relating to a traveling place, an environment, and a situation, that is, time, and information acquired from a vehicle are linked. By displaying a list of display conditions including the condition items to be performed (step S21), the condition items are selected from the list (step S22), and the condition contents are designated for the condition items (step S23). This processing is repeatedly performed until the specification of the condition contents for each desired condition item is completed (step S24).
[0029]
As a list of display conditions, for example, as shown in FIG. 6, a list of condition items such as time zone, time, area, road type, and weather is displayed. Then, when a time zone is selected from a list of these condition items, for example, one of early morning, morning, noon, night, midnight, and designation is designated. The time zone is entered. It is also used to set specific time zones of early morning, morning, noon, night, and late night. The same applies to condition items such as time, area, road type, and weather.
[0030]
In the display of the guide map based on the above setting, for example, as shown in FIG. 7, first, the current position is detected and a map centering on the current position is displayed (step S31), and the time zone and time for displaying the landmark are displayed. The current status corresponding to condition items such as area, road type, and weather is checked (step S32). Then, the search range of the landmark is determined from the display range of the map (step S33), the display condition is read for each status, and the landmark information is searched (step S34). The landmark is marked on the map based on the searched landmark information. Is displayed to display landmarks on the map (step S35).
[0031]
Next, a specific setting example will be described. The time zone and time of the condition items are of a so-called time (time) -linked type in which the selected landmark is displayed in conjunction with the time or the calendar. For example, at midnight, a 24-hour convenience store is displayed and the daytime is displayed. There is a display genre setting in which restaurants and family restaurants are displayed in the event and meal time zones, and leisure and sightseeing facilities are displayed on weekends and holidays.
[0032]
In addition, the area of the condition item is a so-called location-linked type in which a landmark selected according to a location is displayed. In an urban area, a public facility is displayed. There is a display genre setting in which landmarks of facilities that are easily visible are displayed and landmarks within a certain distance from home are not displayed. Further, as another example of the location-linked type, all the facilities are displayed when the distance from the own vehicle position is within a predetermined range, and a facility located at a location more than a predetermined range is, for example, when a store is designated as a genre. In the case of large department stores or public facilities, it is also possible to display facilities such as prefectural offices and city halls that serve as a guide for driving. In the case of this example, in the case of FIG. 8, when the “distance” of the display condition content of the large department store, the prefectural office, and the city hall is “○”, these are displayed even if the distance is far. FIG. 9 is a diagram showing landmarks related to traffic in a location-linked manner. Small facilities such as a bus stop are displayed near the own vehicle position, but only relatively large facilities such as a station and an airport are displayed in a distant place. You. In addition, facilities that have been set as destinations once, that is, facilities that have been used by the user, are also displayed. In this case, data indicating whether or not the destination has been set as the destination is stored for each facility data. It is displayed as a guide point. By such control, detailed facility information can be obtained in the vicinity of the own vehicle position, a distant facility serving as a guide in the traveling direction can be confirmed, and the amount of mark display on the entire screen can be reduced. The road type of the condition item is similar to this, and there is a display genre setting such that IC, SA, and PA are displayed on expressways and are not displayed on other roads.
[0033]
The weather of the condition item is a so-called vehicle information link type in which a selected landmark is displayed based on information obtained by the vehicle through sensors or communication, for example, in the case of rainy weather, a land of an indoor leisure facility. A mark is displayed, and in the case of fine weather, a landmark of an outdoor leisure facility is displayed. In addition, there are display genre settings such as displaying a landmark of a gas station based on information on the remaining amount of gasoline and increasing the number of landmarks to be displayed based on traffic jam information.
[0034]
Note that the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above embodiment, the landmark to be displayed is determined based on each setting, but when the business hours and business days are included in the data, the landmarks outside the business hours and business days are excluded from the display. You may. Further, the display condition of the landmark may be editable by the user. In this case, the user can set under what condition the landmark is displayed for each genre of the facility. For example, in the case of the embodiment shown in FIG. 8, first, the user edits data according to his preference as to when and which genre of facilities to display, so that a restaurant is displayed early in the morning, or fast food is displayed at night. And so on. The edited display condition data may be directly stored in the storage medium storing the facility data, or may be stored in another storage medium.
[0035]
【The invention's effect】
As apparent from the above description, according to the present invention, the current status corresponding to the condition items such as time zone, time, region, road type, and weather are checked, and the landmark is set according to the setting of each status. Is displayed, it is possible to freely set and display the genre of the landmark to be displayed according to the traveling place, environment, and situation. Therefore, it is possible to display a user's favorite landmark according to various situations.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a navigation device according to the present invention.
FIG. 2 is a diagram for explaining a flow of the entire system of the navigation device according to the embodiment.
FIG. 3 is a diagram illustrating a configuration example of road guidance data and the like.
FIG. 4 is a diagram illustrating an example of a display genre setting process performed by the navigation device according to the embodiment.
FIG. 5 is a diagram for describing an example of a display condition designation process.
FIG. 6 is a diagram for explaining examples of condition items and condition contents.
FIG. 7 is a diagram for explaining an example of a guide map display process.
FIG. 8 is a diagram showing a setting example of a genre to be displayed corresponding to each display condition.
FIG. 9 is a diagram illustrating an example in which landmarks related to traffic are displayed in a location-linked manner.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 input device 2 current position detecting device 3 information storage device 4 central processing device 5 information transmitting / receiving device 6 output device

Claims (6)

In a navigation device that searches for a route to a destination and provides route guidance to the destination,
Storage means for storing map data and mark data;
Condition determining means for determining a display condition of the mark;
Determining means for determining a mark to be displayed according to the display condition;
Display control means for displaying, on a map, a mark determined by the determination means based on display conditions determined by the condition determination means based on the map data and mark data stored in the storage means. Navigation device. Current position detecting means for detecting the current position;
Storage means for storing facility data including map data and facility mark data;
Specifying means for specifying the genre of the facility where the mark is to be displayed;
Determining means for determining a mark to be displayed;
Display control means for displaying the determined mark on a map, wherein the storage means stores, for each genre of the facility, data indicating whether or not to display mark data when the vehicle is at least a predetermined distance from the current location of the vehicle. The navigation device, wherein the mark is stored and the mark to be displayed is determined from the storage based on a designated genre and a distance between the vehicle and the facility. Input means for inputting a destination,
Storage means for storing facility data including map data and facility mark data;
Determining means for determining a mark to be displayed;
Display control means for displaying the determined mark on a map, wherein the storage means stores, for each facility, data on whether or not the facility was selected as a destination in the past, A navigation device for determining a facility that has been selected as a destination in the past as a mark. Storage means for storing facility data including map data and facility mark data;
Specifying means for specifying the genre of the facility where the mark is to be displayed;
Determining means for determining a mark to be displayed;
Display control means for displaying the determined mark on a map;
Display condition editing means for editing the display condition of the mark, wherein the storage means stores the display condition edited by the display condition editing means for each genre of the facility, and the deciding means comprises A navigation device, wherein a mark to be displayed is determined from the storage unit based on the edited display condition. A navigation device program for searching for a route to a destination and providing route guidance to the destination, wherein a display condition of a mark determined according to a traveling place, an environment, and a situation is determined, and the display is performed. A program for a navigation device, comprising: processing steps for determining a mark to be displayed based on a condition and displaying the mark determined based on the display condition on a map based on the map data and the mark data. A recording medium for a navigation device that searches for a route to a destination and provides route guidance to the destination,
Map data and mark data,
Determine the display condition of the mark determined according to the traveling place, environment, and situation, determine the mark to be displayed based on the display condition, and determine the mark determined by the display condition based on the map data and the mark data. A recording medium for a navigation device, wherein a program having each processing step to be displayed on a map is recorded.

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