JPH02100085A - Map display device - Google Patents

Abstract

PURPOSE:To display an easy-to-see map matching a purpose by recording main map information and additional map information on different recording media, and reproducing them and displaying them together in one image plane. CONSTITUTION:A 1st reproducing means 1 reads out the main map information according to the indication of a controller 3 and stores data of one image plane in a data memory 4. A 2nd reproducing means 5 reads out the additional map information according to the indication of the controller 3 and stores data of one image plane in a data memory 7. Thus, the data of one image plane are stored in the data memories 4 and 7 and then an image forming means 8 operates according to the indication signal of the controller 3 to read the data out of the memories 4 and 7 and generate a map image on an image memory 9. This map image is composed of the main map information and additional map information and this map image is displayed on a CRT display means 10. Consequently, the easy-to-see map matching the purpose is obtained.

Description

[Detailed description of the invention] B. Industrial application field The present invention reproduces map information recorded on a recording medium,
The present invention relates to a device for displaying on a display screen such as a T.

B. Conventional technology A device for recording map information on a recording medium such as a disk or magnetic tape, reproducing it, and displaying it on a display screen such as a CRT is disclosed in, for example, Japanese Patent Laid-Open No. 59-64985 (HO4N5/9).
3), as disclosed in the magazine "Nikkei Electronics J, March 24, 1986 issue, pages 92 to 95."

C. Problems to be Solved by the Invention Now, let us consider, for example, the case where the above map display device is used for delivering goods or mail. In this case, terrain, roads,
Main map information such as place names is recorded on a first recording medium, items to be delivered and delivery locations (additional map information) are recorded for each delivery on a second recording medium, and these image recording media are recorded on a second recording medium. play,
If the reproduced main and additional map information is combined and displayed on the - display screen, map information corresponding to each delivery can be obtained by selecting and reproducing the second recording medium corresponding to each delivery. can.

In addition, the minimum necessary main map information such as topography, roads, and major place names is recorded on the first recording medium, and detailed map information according to various uses is recorded on the second recording medium. 2
By selecting a recording medium and displaying the selected detailed map information and main map information in a composite manner, it is possible to provide an easy-to-read map that also suits the purpose.

21 Means for Solving the Problems Therefore, in the present invention, there are provided a first reproducing means for reproducing a first recording medium in which, for example, main map information is recorded, and a second recording medium in which, for example, additional map information is recorded. A second reproduction means for reproducing the medium is provided, and the map information reproduced by both reproduction means is combined by an image creation means and displayed on a screen on a display means. Further, the second recording medium on which the additional map information is recorded is a rewritable recording medium.

E1 Effect: By appropriately selecting the second recording medium, an easy-to-read map suitable for the purpose can be displayed on the display means. Further, if the second recording medium is a rewritable recording medium, necessary additional information can be recorded and reproduced each time, and one recording medium can be used effectively.

Embodiment In this embodiment, a case will be described in which the arching of the location of the delivery destination's house and the letters of the product number of the product to be delivered are displayed superimposed on the map-L.

Main map information such as topography, roads, place names, etc. can be stored on a CD-R, for example.
It is recorded on the OM disk (2). When recording a road, coordinate data of bending points and intersections, and data representing the connection status of each coordinate data are recorded, and place name data is also recorded together with the coordinate data (Figures 2 (a) and (b)).
reference).

On the other hand, the data of the product number to be delivered, together with the coordinate data of the delivery destination, is stored on a rewritable recording medium such as an IC card (6).
(See Figure 3).

In FIG. 1, the first reproducing means (1) is for reproducing a CD-ROM disc (2), and the controller (3)
Based on the instruction, the main map information recorded in 7 format as shown in FIGS. 2(a) and 2(b) is read out, and data for one screen is stored in the data memory (4). Second reproduction means (
5) is for reproducing the IC card (6), and reads the additional map information recorded in the format shown in Figure 3 according to the instructions from the controller (3), and stores it in the data memory (7). Stores data for one screen. Usually, C
Since data for multiple sides is recorded on the D-ROM disk (2) and the IC card (6), the controller (3) outputs an instruction signal including an address signal indicating the start of reading, and the desired readout signal is output from the controller (3). Data for one screen is read. When data for one screen is stored in the data memory (4) (7), the image creation means (8) operates based on the instruction signal from the controller (3), and the data is stored in the data memory (4) (7). Read and create a map image in the image memory (9). This map image is an image as shown in FIG. 4 in which the main map information and additional map information are combined. This map image is displayed on the CR7 display means (lO).

If the configuration is such that the previous data is erased and new data is written to the IC card (6) each time a delivery is made, one IC card (6)
6) can be used effectively.

Alternatively, the main map information may be the minimum necessary common map information, and the additional information may be detailed map information according to the purpose, and these may be displayed in a composite manner. In this case, the main map information and additional map information may be combined. It is best to record both on a CD-ROM disc. In this case, the first. The second reproducing means (1) and (5) have the same configuration.

G. Effects of the Invention According to the present invention described above, the main map information and the additional map information are recorded on separate recording media, and the information is reproduced and displayed in a composite manner on one screen. If the map information is detailed map information suitable for various uses, it is possible to commonly use the main map information to obtain an easy-to-read map display that meets the purpose. Furthermore, if the additional map information is used only once, for example delivery information, only this additional map information can be recorded on a rewritable recording medium, and the main map information can be recorded on an inexpensive non-rewritable recording medium.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a map display device according to the present invention, Fig. 2 is a diagram showing the format of main map information, Fig. 3 is a diagram showing 7 formats of additional map information, and Fig. 4 is a diagram showing a screen-L. It is a figure which shows the displayed map. (2) (6) are the first and second recording media, (1) and (5) are the first
, 2nd m generation means, (3) is the controller (4), (7) is the data memory, (8) is the image creation means, (9) is the image memory, and (lO) is the display means.

Claims (2)

[Claims] (1) From the first recording medium on which the first map information is recorded, the first
a first reproducing means for reproducing map information; and a second reproducing means for reproducing the second map information from a second recording medium on which the second map information is recorded.
a reproduction means; an image creation means for synthesizing the first and second map information reproduced by the first and second reproduction means;
A map display device comprising display means for displaying map information synthesized by the image creation means. (2) The map display device according to claim 1, wherein at least one of the first recording medium and the second recording medium is a rewritable recording medium.