JP3136798B2 - Map terminal and drawing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map terminal which realizes a navigation function by outputting a map on a portable terminal.

[0002]

2. Description of the Related Art In a conventional map terminal, a detailed map is searched from a rough map in order to determine a region of a map to be displayed.

[0003]

However, in the above configuration, when referring to a simple map or when the location is not known, the location cannot be easily limited, and a detailed map is searched. It is difficult to create a simplified map suitable for each destination because there is only one piece of map information.

[0004] In view of the above problems, the present invention uses map information in a fixed area to determine the route to a designated place.
By information such as roads, railways, buildings, etc., priorities are assigned to each information and classified by hierarchy, and landmarks that can be used as landmarks for representing routes are individually marked with landmarks. The purpose is to provide a terminal that can store information.

[0005] In addition, by outputting a map for each hierarchy, the density of information can be expressed, and a simplified map suitable for each destination can be created. Further, a classifying unit for classifying an area around the destination on the output map and an area other than the destination,
It is determined which hierarchical data of the information storage unit is appropriate for the area classified by the classification unit, and an omitted, reduced, or enlarged simplified map is created.

[0006]

[0007]

Means for Solving the Problems To solve the above problems,
For this purpose, the map terminal of the present invention comprises an input unit for inputting a departure place and a destination, an information storage unit based on the map information storage method, and a route based on the information on the departure place and the destination input by the input unit. A route determining unit that determines from the contents of the unit, an area determining unit that determines a rectangular area that includes the route determined by the route determining unit, and a route determined by the route determining unit within the determined area. A classifying unit for classifying into a region of a branch point necessary for arrival at a place, a region in the middle of a route, a region around a destination, and other regions; And a map output for reading and combining data of the determined hierarchy in units of the classified areas in the determined area from the information storage unit, and a determination unit that determines which hierarchical data of the unit is appropriate. Department It is those with a.

[0008] Here, the route determination unit compares the contents of the information storage unit with the destination, and determines whether or not the input unit inputs only the destination. Equipped with a function to specify which of the roads, railways and buildings that are the shortest distance from the ground as the basis, select the mark mark that is the shortest distance from the specified information, and determine the route to output May be used.

[0009] The partial judging section includes a branch point classified by the classification section as a method of selecting hierarchical data in the information storage section;
For each area around the destination and around the destination, a function to select a layer with a mark or a layer with a higher priority if there is no branch mark for a branch point or an intermediate route, and a function of selecting a layer of detailed information for the destination Things.

[0010] The drawing method of the map terminal includes, in the determined area, an area of a branch point necessary for arrival at a destination, an area in the middle of the route, Classification unit for classifying into surrounding areas and other areas, and information on each area around the destination, branch point, and middle of the route classified by the classification unit. Selects a layer of detailed information, selects a layer with a mark at a branch point or midway along a route, or selects a layer with a higher priority if there is no such mark, and selects a layer selected by the determination unit, It has a function to enlarge and display the hierarchical part of detailed information, and to shorten and display the route even if it is in the middle of the route if there is no branch point, and do not display parts that are not directly related to the route It is those with a map creation unit.

[0011]

According to the present invention, the following operations are performed by the above configuration.

[0012]

The operation of the map terminal will be described. The input unit inputs a departure place and a destination. In order to determine the starting point even if the input information is only the destination, the user inputs the starting point based on the road, the railroad, or the building based on the destination. Information storage unit is designated place or
Map information within a certain area to identify the route at
Prioritized by information, such as shape, road, railroad, building, etc.
The order of ranking, classified by hierarchy, and the route
For landmarks, roads, railways, and buildings that can serve as signs,
Information with the mark added is stored.

The route determining unit determines a route based on the information on the departure place and the destination by the input unit from the contents of the information storage unit. Further, even if the information to be input at the input unit is only the destination, a route for selecting a mark mark located at the shortest distance from the destination based on the reference information specified at the input unit, determining the departure point, and outputting the route. To determine. The area determining unit determines a rectangular area that includes the route determined by the route determining unit.

The classifying unit includes a branch point area necessary for arriving at the destination from the route determined by the route determining unit in the determined area, an area along the route, an area around the destination, Classify into other areas.

The determining unit determines which hierarchical data of the information storage unit is appropriate for the area classified by the classifying unit. As a method of selecting the hierarchical data, the branch point classified by the classification unit, the middle of the route, and each area around the destination, the branch point and the middle route include a mark-marked hierarchy or a hierarchy having a higher priority if there is no such mark. For the destination, select the layer of detailed information.

The map output unit reads and combines the data of the determined hierarchy from the information storage unit in units of the classified area in the determined area.

The operation of the map terminal drawing method will be described. The classifying unit includes, from the route determined by the route determining unit in the determined area, a region of a branch point necessary for arrival at the destination, a region on the route, a region around the destination, and the like. Area. The determining unit selects a layer of detailed information around the destination from the hierarchical information of the information storage unit with respect to the area around the destination, the branch point, and each area information in the middle of the route classified by the classifying unit. In the middle of the route, a hierarchy with a mark or a hierarchy with a higher priority is selected. The map creation unit selects the hierarchy selected by the determination unit, enlarges and displays the hierarchy portion of the detailed information, and shortens the route even if it is in the middle of the route if there is no branch point in the middle. It is displayed, and parts not directly related to the route are not displayed.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A map information storage method according to one embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory diagram of information storage in a map information storage method according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a terrain information storage unit that stores map information of a certain section related to terrain, 2 denotes a road information storage unit that stores map information of a certain section related to roads, and 3 denotes map information of a certain section related to railroad. A railroad information storage unit 4 is a building information storage unit that stores map information of a certain section of the building.

The storage section of each information stores the information in a priority order for each information.
Hierarchy, 21 to 24 are the second hierarchy of priority 2, 31 to 34 are the third hierarchy of priority 3, and 41 to 44 are the fourth hierarchy of priority 4.

The storage contents of the map information storage unit configured as described above will be described. The map information is classified and stored according to information such as terrain, road, railroad, and building as 1 to 4. Each piece of information is divided and stored in a certain section, and is further classified and stored according to the order of priority such as the first to fourth layers.

For example, in the building information storage unit 4, the first level 14 is a public building such as a city hall, the second level 24 is a large building such as a factory or a company, and the third level 34 is a small building such as a town hospital or a store. , And the fourth hierarchy 44 is classified and stored as detailed information such as a house.

Further, the storage section of each information stores information to which a mark mark which can be a mark when representing a route is added, and adds a mark mark to the information to be a mark. Taking the building information storage unit 4 as an example, a mark is added to the city hall. Then, when the departure place is determined, the city hall is selected as the information of the landmark mark with the building information at the shortest distance from the destination.

As described above, using the present invention as a means for storing map information is an effective storage method for creating a simplified map.

Next, a map terminal according to an embodiment of the present invention using the above-described map information storage method will be described with reference to the drawings.

FIG. 2 is a block diagram of a map terminal according to the embodiment of the present invention. In FIG. 2, an input unit 51 inputs a departure place and a destination. Reference numeral 52 denotes an information storage unit that stores map information by the map information storage method. Reference numeral 53 denotes a route determining unit that determines a route based on the information on the departure place and the destination from the contents of the information storage unit 52. Reference numeral 54 denotes an area determining unit that determines a rectangular area that includes the route determined by the route determining unit 53. 55 is a branch point area necessary for arriving at the destination from the route determined in the area determined by the classification unit;
The area is classified into an area along the route, an area around the destination, and other areas. Reference numeral 56 determines which hierarchical data of the information storage unit 52 is appropriate for the area classified by the determination unit. Reference numeral 57 denotes a map output unit that reads out and synthesizes data of a layer in the area unit classified from the information storage unit 52.

The operation of the map terminal configured as described above will be described with reference to FIG.

The map terminal operator inputs a departure place and a destination of the simplified map to be created in the input section 51. This input unit 51
Route determination unit 5 based on the information on the departure place and the destination
3 determines a route from the contents of the information storage unit 52.

The route determination unit 53 compares the contents of the information storage unit 52 with the destination, and determines whether the information input by the input unit 51 is only the destination. It has a function of designating which of the shortest distance road, railroad and building to use as a reference, selecting the shortest distance mark mark from the designated information, and determining a route to be output. The region determining unit 54 determines a rectangular area that includes the route determined by the route determining unit 53.

Next, the classifying section 55 determines, from the route determined by the route determining section 53 in the area determined by the area determining section 54, a branch point area necessary for arrival at the destination,
The area is classified into an area along the route, an area around the destination, and other areas.

The judging unit 56 judges which hierarchical data of the information storage unit 52 is appropriate to be used for the area classified by the classifying unit 55, and the map output unit 57
The data of the hierarchy determined by the determination unit 56 is read out from the information storage unit 52 in units of classified areas and synthesized. As a method of selecting the hierarchical data of the information storage unit 52 in the determining unit 56, for each area around the branch point, the middle of the route, and the vicinity of the destination classified by the classifying unit 55, for the branch point and the middle route, the hierarchy with the mark is used. If not, a function is provided for selecting a layer having a higher priority and a destination for selecting a layer of detailed information.

As described above, according to the present invention, a simplified map from the nearest starting point to the destination can be created by inputting the destination and the starting point.

Next, a drawing method according to an embodiment of the present invention will be described with reference to the drawings. An embodiment of the drawing method according to the present invention will be described with reference to FIG. FIG. 3 is a block diagram of a drawing method according to the embodiment of the present invention.

In FIG. 3, reference numeral 61 denotes a branch point extraction unit which compares a route determined by the route determination unit 54 with the information storage unit 52 to extract a certain section of a branch point on the route. Similarly, 62 extracts a certain section surrounding the destination by a destination extracting unit,
Reference numeral 63 denotes a route midway extraction unit for extracting a certain section group other than the portion indicated by the destination and the branch point on the route, and 64 denotes a portion outside the portion which is not involved in the route.

Reference numeral 71 denotes a branch point selection unit that determines which layer data of the information storage unit 52 is appropriate for the part extracted by the branch point extraction unit 61, and selects a layer from the hierarchical information. In the case of a branch point, since information serving as a landmark can be obtained, information on an intermediate layer is selected. Reference numeral 72 denotes a destination selection unit that selects a layer of detailed information having a lower level in the part extracted by the destination extraction unit 62. Reference numeral 73 denotes a route midway selection section, which selects information of a higher hierarchy because the portion extracted by the route midway extraction section 63 may be a target to be confirmed midway along the route. Reference numeral 74 denotes a non-partial selection unit which does not perform display on the part extracted by the non-partial extraction unit 64.

Reference numeral 81 denotes a map synthesizing unit, which synthesizes portions extracted by the branch point selecting unit 71, the destination selecting unit 72, the route midway selecting unit 73, and the out-of-part selecting unit 74, respectively. Reference numeral 82 denotes a map editing unit which edits a portion displayed by the map synthesizing unit by moving it vertically and horizontally. Reference numeral 83 denotes an editing output unit, which is a map editing unit 82.
Enlarge and output the map edited in.

The operation of the production method configured as described above will be described with reference to FIG.

First, map information is extracted by comparing the route determined by the route determination unit 54 with the information storage unit 52. The branch point extraction unit 61 extracts a certain section of the branch point on the route. The destination extraction unit 62 extracts a certain section surrounding the destination, the route midway extraction unit 63 extracts a certain section group other than the part indicated by the destination and the branch point in the route, and the outside part extraction unit 64 Extract unrelated parts.

Next, an information storage unit 52 is used based on the extracted map information.
Determine which hierarchical data is appropriate to use,
Select a hierarchy from the hierarchy information. Since it is important that the branch point selecting unit 71 recognizes the branch point, it is only necessary to obtain information serving as a marker for specifying the branch point, and thus the information of the middle layer is selected. Destination selection section 7
No. 2 requires detailed information to limit the destination, and selects a layer of detailed information having a lower level. The route midway selection section 73 determines the current position in the middle of the route and, since the purpose is to confirm that the vehicle is traveling on the correct route, selects the information of the upper hierarchy serving as the target. The outside-of-part selection unit 74 does not display the extracted part so as not to complicate the simplified map because the part does not relate to the route.

The portions extracted by the branch point selection unit 71, the destination selection unit 72, the route selection unit 73, and the outside selection unit 74 are synthesized by the map synthesis unit 81. It is displayed at the correct scale only by compositing. Therefore, the map editing unit 82 reduces the distance if the road information indicates a route in the portion extracted by the route midway selection unit 73, and furthermore, the portion displayed by the branch point selection unit 71 and the destination selection unit 72 is vertically Move horizontally to edit. As a result, the distance can be reduced in the vertical and horizontal directions.

The destination extracting section 62 is a branch point in a higher hierarchy such as an intersection of a national road on a route.
Further, a rectangular area including the branch point closest to the destination and the destination may be extracted.

The route selection section 73 and the outside selection section 74 may extract and select information added with a mark in the extracted area.

As described above, according to the present invention, the hierarchy selected by the judgment section is selected, and even if the route is in the middle, if there is no branch point in the middle, the route is shortened and displayed, and the route is not directly involved. By not displaying the part, an easy-to-understand simplified map can be created.

[0045]

[0046]

As described above, the map terminal of the present invention provides an input unit for inputting a departure place and a destination, and a route to a designated place.
Map information within a certain area to identify the terrain, road, iron
Prioritize each information by road, building, etc.
Classified by hierarchy and can be a landmark when expressing a route
Individual landmarks for terrain, roads, railways, and buildings
An information storage unit that stores the added information; a route determination unit that determines a route based on the information of the departure place and the destination by the input unit from the content of the information storage unit; and a route determined by the route determination unit. An area determining unit that determines a rectangular area to be
In the determined area, the route determined by the route determining unit is classified into a branch point area necessary for arrival at the destination, an area along the route, an area around the destination, and other areas. A classifying unit, a judging unit for judging which hierarchical data of the information storage unit is appropriate for the area classified by the classifying unit, and By providing a map output unit that reads and combines the data of the determined hierarchy for each classified area, a map is output for each hierarchy to express the density of information, and a simplified map suitable for each destination is created. can do.

The drawing method of the map terminal is as follows: the route determined by the route determining unit in the determined area is
A branching area necessary for arrival at the destination, a region along the route, a region around the destination, and a classifying unit that classifies the region into other regions, and a destination surrounding, the branching point classified by the classifying unit For each area information in the middle of the route, a hierarchy of detailed information is selected for the vicinity of the destination from the hierarchical information in the information storage unit. Part selecting unit for selecting a layer having a higher level, and selecting the layer selected by the determining unit. The layer part of the detailed information is enlarged and displayed. It has a map generator with the function of displaying the route shortened and not displaying the part that is not directly related to the route, and classifies it into the area around the destination and the other area on the output map. Classifier and By deciding which hierarchical data of the information storage unit is appropriate for the area classified by the classification unit, it is possible to create an abbreviated, reduced, or enlarged simplified map, which is practically extremely effective. It is.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of information storage of a map information storage method according to an embodiment of the present invention.

FIG. 2 is a block diagram of a map terminal according to the embodiment of the present invention.

FIG. 3 is a block diagram for explaining a drawing method according to the embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Topographic information storage part 2 Road information storage part 3 Railway information storage part 4 Building information storage part 11-14 Layer 1 21-24 Layer 2 31-34 Layer 3 41-44 Layer 4 51 Input part 52 Information storage part 53 Route determination Unit 54 region determination unit 55 classification unit 56 judgment unit 57 map output unit 61 branch point extraction unit 62 destination extraction unit 63 route extraction unit 64 outside extraction unit 71 branch point selection unit 72 destination selection unit 73 route selection unit 74 Out-of-part selection unit 81 Map synthesis unit 82 Map editing unit 83 Editing output unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 21/00 G08G 1 / 0969,1 / 137 G06T 11/60 300 G06T 17/50 G09B 29/00-29 / 10 JICST file (JOIS)

Claims (4)

(57) [Claims] 1. An input unit for inputting a departure place and a destination , and map information in a fixed section for specifying a route to a designated place are classified into information such as terrain, road, railroad, and building. Prioritize, categorize by tier, and provide landmarks, roads, railroads, and buildings that can be used as landmarks to represent routes.
Information storage unit that stores information with individual mark marks
And a route based on the information of the departure place and the destination by the input unit.
A route determining unit that determines from the contents of the information storage unit and a rectangular area that includes the route determined by the route determining unit are determined.
And a route determining unit within the determined area.
From the specified route, find the required branch point to arrive at the destination.
Area, the area along the route, the area around the destination,
A classification unit that classifies the information into an outside area; and the information storage for the area classified by the classification unit.
To determine which hierarchical data of a part is appropriate
And a classification unit in the determined area from the information storage unit.
The data of the determined hierarchy is read out and synthesized in area units.
And a map output unit. 2. The method according to claim 1, further comprising comparing the contents of the information storage unit with the destination, and determining whether the input unit inputs only the destination, a road located at the shortest distance from the destination at the input unit. , A railway, a building, to specify which one is to be a reference, a landmark mark that is located at the shortest distance from the specified information, and a route determination unit that determines a route to be output. The map terminal according to claim 1 . 3. A method of selecting hierarchical data in the information storage unit, wherein each of the branch points, the middle of the route, and the area around the destination classified by the classifying unit is used. 2. The map terminal according to claim 1 , further comprising: the determination unit that selects a hierarchy having a higher priority if there is no hierarchy, and a hierarchy of detailed information for a destination. 3. 4. The map terminal according to claim 1 , wherein the route determined by the route determination unit in the determined area includes a branch point area required for arriving at a destination, and an area in the middle of the route. And a region around the destination and a classifying unit for classifying the region around the destination, a region around the destination classified by the classifying unit, a branch point, and information on each region along the route, from the hierarchical information of the information storage unit. A decision section that selects a layer of detailed information around the destination, and selects a layer with a mark or a layer with a higher priority if there is no branch point or a middle of the route, and a layer selected by the determination section. Select and expand the hierarchical part of the detailed information, and if there is no branch point in the middle of the route, shorten and display the route, and do not display the portion that is not directly related to the route function It includes a mapping unit having, drawing method characterized by creating a simple map.