JPH08152844A - Map display device - Google Patents

Abstract

PURPOSE: To utilize a map display device for navigation when only a new map exists even at the time of mountainous place or a small and medium-sized city by displaying map information consisting of dot information. CONSTITUTION: The map is set in a facsimile, and a dot information reception means 5 is connected to the modular jack of the facsimile. A mode key is set in a dot information reception, and by operating the telephone number of the facsimile, the means 5 performs pseudo facsimile response. Thereafter, the map is read in by the facsimile to be transmitted. At this time, the information is stored in an area of a storage means 1. Then, by a control means 6, both information are displayed on a display means 4 alternately, and a corresponding position is selected by a cursor key to be clicked with a function key. In such a manner, when the map exists in hand or the like, when it is made the dot information by a read device beforehand, it is displayed together with the supplied map information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map display device which is convenient for traveling and carrying around in urban areas.

[0002]

2. Description of the Related Art Conventionally, there is a map display device that has map information as electronic data and displays the map information including the present location such as the vicinity of a destination or the vicinity of the present location based on the map information. Is commercially available as a navigation device. In such a map display device,
As disclosed in JP-A-60-250208,
The map information has been provided by a CD-ROM disc or the like, which is read out by a disc reproducing device or the like and stored in storage means. At this time, display data is generated and the display data is displayed.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The map information supplied in the ROM has enlarged map information with a small scale in a large city, for example.
In the mountainous area, the scale becomes large and the information becomes coarse. The most inconvenient is in the case of small and medium-sized cities, where the smallest scale does not expand as much as large cities, and the supply of new map information is not sufficient in areas where local cities are expanded or where city planning is active. Not done. Therefore, there was a limit to navigation in such a place.

[0004]

The present invention has been made in consideration of the above points, and a storage unit for storing map information including coordinate information such as longitude and latitude, and a map stored in the storage unit. Display means for displaying information based on information, means for receiving map information consisting of dot information, map information including coordinate information, and map information including dot information by associating coordinates at a plurality of points with each other. In the display of the information, a control means capable of displaying the map information including the dot information is provided.

[0005]

If the dot information is set by the reading device when the map is at hand, the map information can be displayed together with the supplied map information.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a map display device according to an embodiment of the present invention, in which 1 is a storage means for storing map information including coordinate information such as longitude and latitude, for example, a video memory capable of storing 10 areas. Consists of. Here, the area means information of one block when the map information is managed for each block, and the map information is attached to the graphic data of the map itself (for example, coordinate-managed line segment, area information) and the map. Character and symbol information (for example, a place name, a map symbol) is read from the information reading means 3 including a disc reproducing device and is added to the map by the image control means 63, which will be described later (for example, one's present time). A position symbol, a set target position symbol), a color, etc. are added to generate display data, which is stored for each area of the storage unit 1.

Reference numeral 4 is a display means for displaying based on the map information stored in the storage means, which is composed of a TFT liquid crystal color display module or the like, and is one of the display data of the storage means 1 which is output by the image control means 63. Is displayed.
It is desirable that the size of the display screen is 60 to 80% of the above-mentioned area, and for example, the scroll display is the basic so that the display across the areas 5 and 4 of the storage means 1 is also possible.
Then, around the display means 4, the input means 2 such as the cursor key 21, the mode key 22 and the function key 23 are provided.
Are arranged, and the input means 2 may be monitored and controlled by the control means 6 described later, if necessary.

Reference numeral 5 is a means for receiving map information consisting of dot information, which is connected to, for example, an image scanner, a facsimile, a personal computer, a word processor, etc., and receives a map read as a dot information in the form of pixel information. .

Reference numeral 6 is a control means for associating the map information including the coordinate information with the coordinates of the map information including the dot information at a plurality of points so that the map information including the dot information can be displayed in displaying the map information including the coordinate information. Is. The control means 6 includes a CPU 61 composed of a microprocessor and a C
It has a memory 62 for storing a PU program and storing data necessary for execution, and an image control means 63 for generating and storing display data according to an instruction from the CPU 61. Of these, the image control means 63 controls the above-mentioned storage group 1, and the storage means 1 stores graphic data of the map itself (for example, coordinate-controlled line segments and area information) and characters / symbols attached to the map. Information (eg place name, map symbol), character / graphic information added to the map (eg your current position symbol,
It has a processing means for reading, writing, and overwriting the set target position symbol) and the like, and a color controller for controlling the color tone of the display. Further, the image control means 63 uses C
The map information read out by the information reading means 3 including a D-ROM disc reproducing device according to the instruction of the CPU 61 is written into the storage means 1, and the display data of the area of the storage means 1 designated by the CPU 61 based on the map information is written. Is read out to the display means 4. Such image control means 63
A microprocessor may be used, or it may be integrated with the storage means 1 and integrated into one chip.

Reference numeral 7 denotes a current position detecting means for detecting the current position. For example, when a global positioning system (global positioning system) which is a positioning system for satellites is used, a receiving unit holding a dielectric with a circular disk, An amplifier for amplifying the signal of the receiving section and a tuner with a signal arithmetic processing circuit are included in the display device main body. The tuner is equipped with an external antenna connection terminal as needed, and switches between the built-in antenna and the external connection antenna (such as those connected to the cord and connected to the terminals or the vehicle-mounted antenna) as necessary, or
It is possible to perform diversity reception. The current location detection means is not limited to this, such as receiving radio waves from a ground base station, a speed sensor,
The acceleration sensor, the geomagnetic sensor, the azimuth sensor, etc. may be used alone or in combination.

A more specific description will be given of such a configuration. For example, a map of Tottori city as shown in FIG. 2 is a CD-RO as map information including coordinate information such as longitude and latitude.
It is provided by M disk and you want to take a walk around the facility near the prefectural office (position 2 in the circle). However, it is extremely simple and does not serve as an index for walking. On the other hand, it is assumed that the map issued by the city hall and the residential map issued by the private company of the land were available at the information desk and could be referred to. In such a map, for example, as shown in FIG. 3, roads and facilities near the prefectural office are described in detail.

Then, with the cursor key 21 or the function key 23, the map is searched or the destination is set,
The vicinity of the prefectural office in Fig. 2 is displayed. Since such a display designation has been made conventionally, it is generally stored in the areas 1 to 9 of the storage means 1. Next, the map of FIG. 3 is set in the facsimile and the dot information receiving means 5 is connected to the modular jack of the facsimile. A method of connecting to a public telephone line without directly connecting to a facsimile is also possible. By setting the mode key 22 to receive dot information and operating the telephone number 1 of the facsimile, the dot information receiving means 5 makes a pseudo facsimile response. That is, in facsimile communication, as shown in FIG. 4, a predetermined procedure such as identification of the other party is performed before transmission / reception, so that the dot information receiving means 5 detects the incoming call, DIS, CFR.
Etc., and the reception preparation signal is transmitted as if it were communication between facsimiles. After that, the map is read by facsimile and transmitted.
Here, this information is stored in the area 0 of the storage means 1. Both of these are displayed alternately on the display means 4, and the corresponding portion is selected by the cursor key 21 and the function key 23.
Click on.

Such association is performed in a place that is easy to see. For example, in FIG. 2, the intersection in front of the city hall (indicated by a circle 1) corresponds to the intersection in front of the city hall in FIG. Similarly, click the prefectural office front three-way intersection (displayed by circle 2). Since the coordinates are managed in FIG. 2, if a plurality of points can be associated with each other, the size ratio between FIGS. 2 and 3 is determined. As a result, a certain range in FIG. 2 is associated with the map in FIG. 3,
For example, even when the current position is determined by moving the current one determination means 7 and the current position is overwritten and displayed on the map,
When FIG. 3 is preferentially displayed, the display is performed as if a part of FIG. 2 is replaced with FIG.

In the above description, when two points are clicked, it is assumed that the comparison between FIG. 3 and FIG. 2 is equal in aspect ratio, the reading drawing of FIG. 3 is compared, and when three points orthogonal to each other are clicked. It is more preferable to compare the vertical and horizontal directions at different ratios, and when clicking a large number of points, compare each point with the coordinates instead of the ratio. Further, only the area 0 of the storage means 1 is used for storing the dot information, but the present invention is not limited to this. For example, all the storage areas may be halved and used for storing the map information and the dot information, respectively.

[0015]

As described above, since the map information consisting of dot information can be displayed in the display of the map information including the coordinate information by associating the coordinates at a plurality of points of the map information with each other, it is possible to read the map information at hand. If the device uses dot information, it can be displayed together with the supplied map information. As a result, even in the case of mountainous areas and small and medium-sized cities, which are not expanded to the extent of large cities, and where expansion and city planning are prominent, new maps can be used for navigating.

[Brief description of drawings]

FIG. 1 is a block diagram of a map display device according to an embodiment of the present invention.

FIG. 2 is an example of a map of map information including coordinate information such as longitude and latitude.

FIG. 3 is an example of a map of map information including dot information.

FIG. 4 is a facsimile communication procedure diagram of the dot information receiving means 5.

[Explanation of symbols]

 1 Storage Means 2 Input Means 3 Information Reading Means 4 Display Means 5 Dot Information Receiving Means 6 Control Means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Iida 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A storage unit for storing map information including coordinate information such as longitude and latitude, a display unit for displaying based on the map information stored in the storage unit, and a unit for receiving map information including dot information. And a control means capable of displaying the map information including the dot information in the display of the map information including the coordinate information by associating the coordinates of the map information including the coordinate information with the coordinates of the map information including the dot information at a plurality of points. A map display device characterized in that