JPH04120583A - On-vehicle navigation device - Google Patents

Abstract

PURPOSE:To divide an area where a vehicle moves according to areas of existent telephone office numbers or postal codes by taking corresponding map data out according to information corresponding to an area to be displayed and performing display control, and displaying the necessary map data. CONSTITUTION:The driver of the vehicle as a mobile object when displays map data on a display device 41 presses a specific key on, for example, a keyboard 11 and then necessary interruption operation starts. Then the telephone office number or postal code corresponding to the area is inputted on the keyboard 11 or by using a card reader 12. Information on the latitude and longitude (x, y) corresponding to the specific telephone office number or postal code is obtained from a number-longitude/latitude correspondence data ROM 34. Consequently, the area where the vehicle moves is divided according to the areas of the existent telephone office numbers and postal codes and the driver even if having poor knowledge about concrete area names can easily select and display the necessary map data.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a navigation device for a vehicle, and in particular, divides the area in which a vehicle moves by using existing telephone area codes and postal codes. Relating to a vehicle navigation device that is adapted to the region and uses existing telephone area numbers and postal codes instead of specific place names to easily code and call the corresponding region. It is something.

[Prior Art] Radio waves are transmitted from multiple artificial satellites to various types of moving objects such as ships, aircraft, and automobiles in order to confirm or determine their current positions, moving speeds, etc. The usefulness of GPS positioning devices has been gaining attention. here,
GPS positioning device is the Global Positioning System (Globa)
It is designed to receive radio waves from a plurality of artificial satellites belonging to the I-Positioning System, and to know the current position of a mobile object.

As is conventionally known, positioning operations performed using such a GPS positioning device are usually performed by receiving radio waves from three or more artificial satellites. Then, the radio waves from the plurality of satellites are simultaneously received by the vehicle as a moving body, and the clocks installed on the side of the plurality of satellites and the clock installed on the vehicle side are simultaneously received. The distance from each artificial satellite is calculated based on the difference between the two, and the position of the moving object is detected from the position of each artificial satellite.

Furthermore, as the above-mentioned position detection device for a vehicle, a so-called self-supporting type is also known. Unlike the GPS-type devices mentioned above, this self-contained device does not rely on external data such as radio waves from artificial satellites, and can determine its current location based only on the data it acquires. It has been made possible to know.

By the way, in conventional vehicle navigation devices, when a moving vehicle moves within a predetermined area, map data tailored to the area is prepared, and this is accessed as needed to navigate to the desired destination. Being able to reach a point. However, there is no general standard for dividing this region appropriately, and various miscellaneous forms are currently provided according to the intentions of map data creators. 7)
The problem was that they were forced to use materials that were not very good. In addition, the required region is called using a specific place name, which makes it difficult to code and convert, and as mentioned above, it is difficult to use for users who do not know the specific place name. there were.

[Problems to be Solved by the Invention] In conventional devices of this kind, when a vehicle as a moving object moves within a predetermined area, it is difficult to use a map tailored to the area. Data is prepared and accessed as appropriate to reach the desired point, but there is no general standard for dividing the area appropriately, and map data is not created. At present, various miscellaneous products are provided according to the user's intention, and there is a problem in that the general user is sometimes forced to use products that are not very easy to use. In addition, calling up a desired area is done using a specific place name, which is difficult to code, and also has the problem of being inconvenient for users who do not know the specific place name, as mentioned above. there were.

This invention was made in order to solve the above-mentioned problems, and it is a vehicle-use system in which the area in which the vehicle moves is divided according to the existing telephone area code and postal code area. The purpose is to obtain a navigation device.

[Means for Solving the Problems] A vehicle navigation device according to the present invention includes: an input means for inputting predetermined information corresponding to a display target area;
A fixed storage means for storing the above-mentioned predetermined information and the coordinate data of the area related thereto; a fixed storage means for extracting the corresponding map data based on the information from the above-mentioned input means and performing necessary display control; The present invention includes a display control means; and a display means for receiving a signal from the display control means and displaying required map data.

[Function 1] In this invention, the area in which a vehicle moves is divided according to the existing telephone area code and postal code area, and the area where the vehicle is moving is divided according to the existing telephone area code and postal code area. Also, the user can easily select and display the desired map data.

[Embodiment] FIG. 1 is a block diagram schematically showing an embodiment of the present invention. In FIG. 1, input means (1) is for inputting information necessary to represent the current position of the vehicle, and is connected to display control means (2), which will be described later. This display control means (2) functions to display map data centered on the current position of the vehicle on the subsequent display means (4), and is stored in the storage means (3). The necessary map data is selected and displayed on the display means (4).

FIG. 2 is a block diagram showing the above embodiment in more detail. In this FIG. 2, a keyboard (11) and a card reader (12) correspond to the input means (1) in FIG. 1 of the company.

The CPU (2) consists of a suitable microcomputer and corresponds to the display control means <2) in FIG. Program ROM (31) is CP
It stores various programs applied by LI (21). The map data ROM (32) stores a map to be displayed in a required data format. R
AM<33) stores data representing intermediate calculation results and data to be finally output in a readable and writable manner. In addition, number/latitude and latitude correspondence data ROM (3
4) stores data that associates the telephone area code or postal code with the latitude and longitude of the target area. Note that these four types of storage devices are the storage means 3) in FIG. 1 above.
This corresponds to

The display device (41) connected to the rear stage of the CPU (21)
) is, for example, T P T (Thin Flat Tra
It is of the liquid crystal type and corresponds to the display means (4) shown in FIG. 1 above.

FIG. 3 is a flowchart diagram for explaining the operation of the above embodiment.7 In this FIG. Sometimes, in step (S31),
For example, by pressing a specific key on the keyboard (11), the required interrupt operation is started. Next, the operator uses the key fob (11) or card reader (12)
) to enter the local telephone office number or postal code. Next, in step (S32), it is determined whether or not it is a telephone office number, and the following step (33)
In step 3), it is determined whether or not it is a postal code. If the result of either determination is NO, it means that these telephone office numbers or postal codes are not used as an index of the area index, so skip to the last interrupt return step (S38). The interrupt work ends.

On the other hand, if the result of the determination in either step (S32) t or step (533) is YES, the process moves to step (S34), and the number is stored in the latitude and latitude correspondence data ROM (34,). , the latitude and longitude (x, y
) to get the information. Now, referring to Figure 4,
FIG. 4 illustrates a specific data format (4A) used in the above embodiment. In FIG. 4, the telephone office number, postal code, latitude (x> and longitude (y)) corresponding to a certain area are grouped together and marked with a corresponding symbol, for example, ■.

Similarly, another group is marked with the corresponding symbol +I. Thereafter, required groups are set in a similar manner.

Here, regarding the card reader (12) as an input means, this is designed to be able to read the contents of a business card, for example.

Usually, a business card has a relevant telephone number or postal code written on it, and simply by having this part read, map data related to the area can be retrieved and displayed easily. In addition, the above-mentioned card reader (1
For the part to be read in 2), it is convenient to add a barcode display.

[Effects of the Invention] As explained above, the vehicle navigation device according to the present invention includes: an input means for inputting predetermined information corresponding to the display target area; the above predetermined information and the related area; fixed storage means for storing the map data in association with the coordinate data of the input means; display control means for extracting the corresponding map data based on the information from the input means and performing necessary display control; and the display control means. This system includes display means for displaying the required map data in response to signals from Because it is done,
In addition to making the division process easier, the user can easily select and display map data even if the user has little knowledge of the specific place names of the area.

[Brief explanation of the drawing]

Fig. 1 is a block diagram schematically showing an embodiment of the present invention, Fig. 2 is a block diagram showing the above embodiment in more detail, and Fig. 3 explains the operation of the -F embodiment. FIG. 4 is a flowchart diagram illustrating a data format used in the above embodiment. (1) is an input means, (11) is a keyboard, (2) is a card reader, (2) is a display control means, (21) is a CPU, (3) is a storage means, (31) is a program ROM, (32) is a map data ROM, (33) is a RAM, (34) is a number/latitude and latitude correspondence data ROM, (4) is a display means, and (41) is a (TPT liquid crystal) display device. , ¥) Figure 3

Claims (1)

[Claims] (1) Input means for inputting predetermined information corresponding to the area to be displayed; Fixed storage means for storing the above predetermined information in association with coordinate data of the area related thereto; From the above input means Display control means for extracting corresponding map data based on the information of the above and performing required display control; and display means for displaying the required map data in response to a signal from the display control means. A vehicle navigation device characterized by: