JPH10213444A - Navigator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain detailed map information and service information so that the section of the present position becomes the main map information of a memory medium, which is always regenerated. SOLUTION: This navigator has a multi-disk regenerating device 4 and a control circuit. The multi-disk regenerating device 4 switches a German disk 41 for storing the map information, wherein the German region is main and the French region is subordinate, and a French disk 42 for storing the map information, wherein the French region is main and the German region is subordinate, and regenerates the amp information stored in any of the above described disk. The control circuit switches the regenerating of the multi-disk regenerating disks 4 to the French disk 42 from the German disk 41 when the present position is moved from the German region to the French region.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device capable of switching and reproducing a plurality of storage media storing map information.

[0002]

2. Description of the Related Art Since the amount of map information and service information used in a navigation device is enormous, it is divided into a plurality of disks for each area and stored. Then, insert the plurality of discs into a multi-disc playback device,
It has been considered that the reproduction is switched to a disk in which the map information of the current position is stored (see Japanese Patent Application Laid-Open No. 5-46090).

[0003]

However, many discs also store map information of an adjacent area, and this map information may be displayed. For example, a German disc stores some map information of France. However, the French map information is not as detailed as the German map information. For example, an expressway is stored, but a general road is not stored.

Therefore, in the conventional navigation device,
When moving from German territory to French territory, the German disc was played, despite the French disc, and detailed map information and service information could not be obtained.

[0005]

SUMMARY OF THE INVENTION A navigation device according to the present invention has been made in view of the above points, and has map information mainly including a first area and a second area adjacent to the first area. Is switched between a first storage medium for storing the map information and a second storage medium for storing map information mainly based on the second area and dependent on the first area. , A position detecting means for detecting the current position, a display means, and the display means displays the map information reproduced from the storage medium reproducing apparatus and the current position detected by the position detecting means. A navigation circuit having a control circuit for displaying, when the current position moves from the first area to the second area, the playback of the storage medium playback apparatus is performed by the first storage medium. To switch to the second storage medium.

[0006] The first and second storage media may include a first section including only a first area, a second section including only a second area, and both a first section and a second section. A classification code classified into a third section including an area is stored belonging to each section, and the control circuit moves the current position from the third section to the second section based on the detection of the classification code at the current position. When it is determined that the user has moved to the section, the reproduction of the storage medium reproducing device is switched from the first storage medium to the second storage medium.

[0007] Further, a code indicating that the first storage medium is a section including only the second area is stored in the section,
The control circuit causes the storage medium to be reproduced to be switched to the second storage medium when the code is detected in the section at the current position.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a main part of the first embodiment of the present invention. (1) is a control circuit, a ROM
It operates according to the program stored in (2) and controls the entire apparatus. (3) is a GPS positioning means,
A current position is measured by receiving a radio wave from a satellite, and measurement data is output to the control circuit (1).

(4) is a multi-disc reproducing apparatus,
A German disk (41), a French disk (42) and a Swiss disk (43) in which map information is stored are inserted. The country number "1" is written on the German disk (41), the country number "2" is written on the French disk (42), and the country number "3" is written on the Swiss disk (43). Have been. Then, the multi-disc reproducing device (4) reads the country number and outputs it to the control circuit (1), or switches the reproduction to the disk of the country number designated by the control circuit (1).

As shown in FIG. 2, a German disk (4
The map information (411) of (1) also stores map information (421) (431) of an adjacent country other than the main German territory, such as adjacent French territory or Swiss territory. The map information includes service information such as accommodation facilities and sightseeing in addition to roads, and the main map information of German territory is more detailed than the map information of the neighboring country.

This map information is divided into a plurality of sections in a matrix as shown in FIG. A classification number of "0" is stored in a section including the border, "1" is stored in a section of only German territory, "2" is stored in a section of only French territory, and "3" is stored in a section of only Swiss territory. ing. Similarly, the French disc (42) and the Swiss disc (43) also include map information (421) (43) including map information of an adjacent country.
1) and a classification number are stored.

Incidentally, since the classification numbers written on the three disks are common, the same database can be used for disks of each country for the section including the border.

And a multi-disc reproducing apparatus (4)
Reads the map information of the disk of the country specified by the control circuit (1) and the classification number of the section specified by the control circuit (1) from among the disks of these three countries, and outputs it to the control circuit (1).

(5) is display means, and the control circuit (1)
A map, a current position, and the like are displayed based on the control of. (6) is a voice generating means for generating a voice such as a travel guide under the control of the control circuit (1).

Reference numeral (7) denotes a RAM, which is data necessary for the operation of the control circuit (1), such as a current position detected by the GPS positioning means (3), a home position, a starting point to be used for a scheduled route, The destination and the position of the route point are stored.

The input means (8) includes an operation key for designating a disc to be reproduced, a scroll key for scrolling a screen in eight directions, and the like.

The operation of the first embodiment of the control circuit (1) having the above configuration will be described. Here, A is a variable indicating the classification number of the initial section, and B is a variable indicating the classification number of the section at the current position. These classification numbers are "0" for a section including a border, "1" for a section only for German territory, "2" for a section only for French territory, and "2" for a section only for Swiss territory. 3 ". These variables are temporarily stored in a register (not shown) in the control circuit (1).

Here, it is assumed that a German disc (41) is reproduced and the initial current position is a section of only German territory without a border.

First, the control circuit (1) stores the classification number of the section at the current position detected by the GPS positioning means (3) in a variable A (S2), and A = 1.

Then, the classification number of the section at the current position detected by the GPS positioning means (3) is stored in a variable B (S
2), B = 1. Therefore, the process waits until the section classification number at the current position becomes “0” due to the movement (N of S3 and loop of S2). That is, it waits to move to the section including the border.
Once moving to the section including the border (Y in S3), the process waits until the vehicle exits the section including the border (Y in S5 and a loop of S4). After passing through the section including the border (N in S5), it is checked whether or not the classification number (B) of the section at the current position is equal to the classification number (A) of the initial section (S6). If they are equal, the process returns to step S2. If they are not equal, the disk to be reproduced is switched to the disk storing the country number of the variable B (S7). Then, the variable A is set to the number of the variable B (S
8). For example, when moving from the German territory to the French territory, the disc is automatically switched from the German disc (41) to the French disc (42), and the initial current position number becomes the French territory number.

Although it has been described that A = 1 in step S1, a case where A = 0, that is, a case where the initial current position is a section including a national border may be considered. In this case, when the vehicle passes through the section including the national border, the disk storing the main road information is reproduced by N in step S6 and step S7.

In this way, the section including the national border is recognized, and the disc in the area to which the player has advanced when the section has passed is automatically reproduced. Thereby, detailed map information and service information can be obtained.

Next, a second embodiment will be described. The second block diagram is the same as FIG. 1, and the operation of the control circuit (1), that is, the program written in the ROM (2) is different from that of the first embodiment. Also, the section including the border is not “0”,
It is the number of the main country. For example, a German disk (4
In the case of 1), as shown in FIG. 5, all the sections including the German territory become "1".

FIG. 6 is a flowchart showing the operation of the control circuit (1) in the second embodiment, which will be described.

Here, DN is a variable indicating the number of the country of the disc being reproduced. DN = 1 for a German disc (41), and DN for a French disc (42).
= 2, for a Swiss disc (43), DN = 3. KN is a variable indicating the classification number of the section at the current position. KN = 0 for a section including a border, KN = 1 for a section only for German territory, KN = 2 for a section only for French territory, KN = 3 for a section only in Swiss territory. These variables are temporarily stored in a register (not shown) in the control circuit (1).

First, the country number of the disc being reproduced is stored in a variable DN (S11). Then, the classification number of the section at the current position detected by the GPS positioning means (3) is stored in the variable B (S12), and it is checked whether or not this is equal to the variable DN (S13). If they are equal, the process returns to step S12. If they are not equal, it is checked whether a disk of the country of the variable KN is inserted (S14). If not, the process returns to step S12. If a disk of the country of the variable KN is inserted, this disk is reproduced.

As described above, when the second embodiment detects that the current position has become a subordinate section, the reproduction is switched to the disk in which this section is the main section. Thereby, detailed map information and service information can be obtained.

[0028]

According to the present invention, detailed map information and service information can be obtained so that the section at the current position always becomes the main map information of the storage medium to be reproduced.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a main part of a configuration according to a first exemplary embodiment of the present invention.

FIG. 2 is a diagram showing areas stored in disks of each country.

FIG. 3 is a diagram showing partition classification numbers of German disks according to the first embodiment;

FIG. 4 is a flowchart illustrating a path setting operation of the control circuit according to the first embodiment.

FIG. 5 is a diagram showing partition classification numbers of German disks according to the second embodiment.

FIG. 6 is a flowchart illustrating a path setting operation of the control circuit according to the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control circuit 2 ROM 3 GPS positioning means 4 Multi-disc reproducing apparatus 41 German disc 42 French disc 43 Swiss disc

Claims (3)

[Claims] 1. A first storage medium for storing map information mainly on a first area and a second area adjacent to said first area, and said first area mainly on said second area. A storage medium reproducing device that switches a second storage medium that stores map information based on an area and reproduces the map information stored in any one of the storage media; a position detection unit that detects a current position; A navigation device having display means, and a control circuit for displaying the map information reproduced by the storage medium reproducing device and the current position detected by the position detection means on the display means, wherein the control circuit The navigation device according to claim 1, wherein when moving from the first area to the second area, the reproduction of the storage medium reproducing apparatus is switched from the first storage medium to the second storage medium. 2. A first storage medium for storing map information divided into predetermined sections and mainly storing a first area and a second area adjacent to the first area, and the second storage medium. A storage medium reproducing device for reproducing map information by switching a second storage medium for storing map information in which a region is mainly used and the first region is subdivided into predetermined sections and stored, and a position for detecting a current position A navigation device comprising: a detection unit; a display unit; and a control circuit that causes the display unit to display the map information reproduced by the storage medium reproduction device and the current position detected by the position detection unit. The second storage medium includes a first section including only the first area, a second section including only the second area, and a third section including both the first and second areas. The classification code to be classified belongs to each section and is stored. When it is determined that the current position has moved from the third section to the second section based on the detection of the classification code of the current position, the reproduction of the storage medium reproducing device is performed by the first storage medium. A navigation device for switching from the first storage medium to the second storage medium. 3. A first storage medium for storing map information divided into predetermined sections and mainly storing a first area and a second area adjacent to the first area, and the second storage medium. A storage medium reproducing device for reproducing map information by switching a second storage medium for storing map information in which a region is mainly used and the first region is subdivided into predetermined sections and stored, and a position for detecting a current position A navigation device, comprising: a detection unit; a display unit; and a control circuit that causes the display unit to display the map information reproduced from the storage medium reproduction device and the current position detected by the position detection unit. The storage medium stores, in the section, a code indicating that the section includes only the second area, and the control circuit stores the storage medium to be reproduced when the code is detected in the section at the current position in the second storage. Switching to medium Navigation device according to claim.