JPH08189836A - Signal transmission and reception type coordinate indicating system and device for it - Google Patents

Abstract

PURPOSE: To eliminate necessity for updating the map information at regular intervals by inserting the received map and road information image in the existing map displayed on a screen, determining the position coordinates from the satellite waves or terrestrial magnetism, and drawing the current position on the map. CONSTITUTION: An enlarged map information transmitting device is installed in a crossing signal machine, or separately installed. In the case of a map applicable for wide region, for example, over one prefecture, city, ward, map information electric waves are transmitted, and in the case of a narrow region map over one urban district or a restricted dwelling area, particular identification information is transmitted. They are received and displayed on a screen in the form of a map, and when desired, the electric waves from artificial satellite are received and the position coordinates are determined from the angle of signal reception, or the approximate position coordinates are determined from the terrestrial magnetism, and thereby, it is practicable to display information with high accuracy. Thus the updated map, road data, guide data, etc., can be received, and there is no need to keep the latest data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission / reception coordinate display system and device, and more particularly to a map road information transmitter / receiver with a built-in television screen and a method for providing accurate and expanded position coordinates and map information.

[0002]

2. Description of the Related Art The development of computers, electronic devices, and software has been remarkable recently, and optical communication has already been
With the spread of cable television, the industrial revolution by Malmedea is progressing. Even in Japan, a stationary or mobile position coordinate display system using satellites and azimuth magnets has recently become widespread. (JP-A-51-1692, JP-A-5-11694,
(Japanese Patent Laid-Open No. 5-19684, etc.)

[0003]

However, according to the conventional technology, since it is necessary to retain map data, the device is expensive and tends to be large in size, and the map information is regularly changed due to regional development. I needed to update the map data.

[0004] In addition, the car navigation by the satellite guidance map system which is actually commercially available is limited to the main road map. For example, when it is desired to search for the gas station closest to the current coordinates, stop the car and let the pedestrian walk. There was no other way than listening. Even if the position coordinates are accurately determined by the satellite and the compass, an error of 500 m or more will occur.Therefore, it is desirable to develop a device that can accurately determine the position coordinates even for enlarged maps such as town maps and residential maps. It was rare.

The present invention solves these problems.
The first aspect of the present invention provides an inexpensive and portable device that does not require regular exchange of map information, and the second aspect provides an accurate position coordinate determination and enlarged map information display device.

[0006]

[Means and Actions for Solving Problems]

(Summary of the Invention) The present invention is, firstly, a device (first invention) for receiving and displaying necessary map information wirelessly, and secondly carrying a wide range of map information data to search and display a necessary map. It can be roughly divided into devices (second invention). Also,
In order to further improve accuracy, the present invention also provides an apparatus having both the functions of the first invention and the second invention.

Specifically, the first aspect of the present invention receives an image from a map or road information, preferably in the form of receiving from a traffic signal at an intersection or a horizontal radio wave transmission device specially installed, and the image is provided by an existing method (from an artificial satellite). (Reception of radio waves, geomagnetism) or by confirming the position from the radio wave transmission source and analyzing it,
This is a method of defining the position coordinates and drawing the current position on the screen together with the map and road information.

According to the second aspect of the invention, the map information is possessed as electronic data in subdivided units, and the positional information is received by receiving an identification symbol from a traffic signal at an intersection or a horizontal radio wave transmission device specially installed. , A method of selecting a map corresponding to the identification symbol.

In the second invention, if it is an enlarged map, there is little need to show the position coordinates, but if desired, the existing method (radio wave reception from an artificial satellite,
By confirming and analyzing the position information by (geomagnetism),
It is also possible to set the position coordinates and draw the current position on the screen together with the map. The device of the present invention has a method of receiving map information by radio waves and a method of preliminarily storing map information as electronic data.

(Structure) The method of receiving map information by radio waves includes technology that cannot be implemented without waiting for future infrastructure development, but it is a wide-area map (prefecture, city, or ward unit).
Can be roughly divided into a method for determining the position coordinates and a method for determining the position coordinates by providing a narrow area type map (town area, housing unit).

In the case of the wide area type, the map information radio wave transmitted from the enlarged map information transmitting device installed at the intersection traffic light or the separately installed enlarged map information transmitting device is received and drawn as a map on the screen. The method comprises a position coordinate drawing and a magnified map information display device for receiving rough position coordinates from a received satellite radio wave, geomagnetism, etc. and drawing them on a map if desired.

In the case of the narrow area type, the enlarged map information transmitting device installed at the intersection traffic light or the separately installed enlarged map information transmitting device receives the unique identification symbol to transmit the map information for a certain period of time. Is a device for drawing a map on the screen by determining the position coordinates from the reception angle of the radio wave.

Also in this case, it is possible to know the rough position by receiving the radio wave from the artificial satellite, the rough position coordinate from the geomagnetism, etc., if desired, and to draw the highly accurate information in a short time by the above device. it can.

In the system in which the map information is held in advance as digitized data, it is necessary to hold the map as a digitized data recording medium such as a CD, and the size of the device is increased and the map data is exchanged over time. Therefore, although it is limited to use as a navigation system for a car or the like, it is a device that can more accurately determine position coordinates and display enlarged map information compared to the conventional method.

Specifically, an identification code uniquely assigned to an intersection traffic light (hereinafter referred to as an identification code) and information about an enlarged map area corresponding to the identification code are stored in a search data memory (C).
D) and search the position coordinates and map information by a method of manually inputting the identification symbol from the operation unit or a method of receiving the identification symbol transmitted from the traffic light and automatically inputting this to the operation unit, and displaying it on the screen. Accurate position coordinate determination and enlarged map information display are achieved by the display method.

Of course, received radio waves from existing artificial satellites,
After determining the rough position and the map by geomagnetism, in order to confirm the more accurate position, check the identification symbol uniquely assigned to the intersection traffic signal at the shortest distance from the map, and perform the above-mentioned operation to determine the accurate position coordinates. Enlarged map information can be displayed.

It is preferable that the map information also contains information related to life in the area such as tourist information, government agencies, supermarkets, gas station positions or price information, and is provided at the same time. Hereinafter, the present invention will be described in more detail with reference to Examples.

[0018]

【Example】

[I] Radio wave transmission / reception test equipment, prototype of data (1) Creation of database of map information Route map, enlarged map near Hamamatsu station (1 / 160th, published in the October issue timetable issued by Japan Transportation Agency) 2/1000)
After inputting the image of the location of the gas station and restaurants, and the picture of the tourist information of the surrounding area and attaching the search code, the compact desk was stored together with the search operation software. In addition, this material was adjusted only for the purpose of map orientation and for experimental research due to copyright.

(2) Position determining device (satellite type position coordinate measuring device) The above (1) is modified by modifying a Sony navigation system.
The data of the 144MHz band (2
Meter, Amatia band) A device with bonded image receiver was adjusted.

(3) Emission of test radio wave (transmission of map and road information image) A test radio wave was emitted from a fixed station and a mobile station received a static image transmission using a 2-meter amacia band image transmission / reception area. .

(4) Test Method It is assumed that the Amatia radio fixed station is the road information image transmitting apparatus installed in the intersection traffic light according to the present invention or the road information image transmitting apparatus installed separately (virtual road information image transmitting apparatus), and the same. The Amatia radio mobile station was regarded as a user (virtual user) who needed map and road information image information, and the call sign of each station was regarded as an identification symbol (virtual identification symbol) of an intersection traffic light.

The virtual user transmits a virtual identification symbol, the virtual road information image transmitting device that receives this transmits the specified image, and the virtual user receives this image, and the satellite type position coordinate measuring device of (2) above. The position on the map shown in the table below was confirmed. The image is first sent in SH shown in Table 1.
After the virtual user received, the virtual user transmitted the desired map number following the virtual identification symbol (SH-6C on the screen of Table 2). This operation was performed sequentially to confirm the correct position (following Table 3
SH-6C-4D on the screen, then the 3D illustration SH-6C-4D-4a on the Table 4 screen, followed by the 3D illustration SH-6C-4D-4b on the Table 5 screen, followed by the Table 6 screen 3D illustration of SH-6C-4D-2b, and further instructed to search the position of the post, and sent and received the underground a map screen of Table 7). The arrows indicate the position coordinates. As a result, there was no radio interference, and the position could be confirmed accurately.

Results and Discussion The test method is that the mobile station calls the fixed station with the call sign,
After the fixed station confirms the mobile station's map still image reception preparation,
The desired map number of the mobile station is searched and a test radio wave of that map image is emitted, and the mobile station receives this as a map image in the satellite type position coordinate measuring device of (2) above, and the direction of the received radio wave. Although it was a simple method using a hox hunting device that estimates the position and confirms the coordinate position, it was found that the mobile station can confirm the position accurately.

Although the test radio wave used the 144 MHZ band,
In the 430MHZ band, it was predicted that it would be possible to exchange map information from a remote location using a repeater or the like.

This test is a manual method using the Amati radio band, but by automating the transmission / reception operation, a road information image transmission device using the short-distance communication radio wave area is installed at an intersection traffic light etc. By receiving a road information image radio wave by providing a map or conversely, a road information image transmission device (which can also be placed on the radio wave of general TV broadcasting) installed separately using the telecommunications radio wave area, etc. Then, draw a map on the screen as a map or a map with road information added, and if desired, receive the radio wave from an artificial satellite, receive the position coordinates from the geomagnetism, and confirm the current position on the map. It suggests something.

[0026]

[Table 1]

[0027]

[Table 2]

[0028]

[Table 3]

[0029]

[Table 4]

[0030]

[Table 5]

[0031]

[Table 6]

[0032]

[Table 7]

[II] Transmitting / Receiving System Table 8 below shows an outline of the apparatus of the radio wave test example of the present invention.

[Table 8]

[III] Configuration of user transmitting / receiving device The user transmitting / receiving device does not need to be large as shown in Tables 8 to 8 above. It is sufficient that the LCD TV screen is equipped with operation buttons and a transmitting / receiving antenna on one side (illustration table 9). Of course, the receiving data recording device and satellite position coordinate display device or the computerized database storage and retrieval device (CDROM for map information)
Etc.) can be installed. If desired, F
M, AM receiver function, pager function, character information receiving function, subscriber telephone function, etc. can be added.
In addition, it will be necessary to develop infrastructure such as artificial satellite transmission / reception devices in the future, but if satellite transmission / reception is possible, it will be possible to receive necessary coordinates and maps via satellite using satellite digital broadcasting. (Map on demand).

[0035]

[Table 9]

[IV] Specific example of provided information (software) Regarding map information and guide information in Ogaki city produced by the present inventor, the map information is [I] because it is the same software as used in the radio wave transmission / reception test. The outline is shown in FIGS. A specific example of the guide information provided with the map information is shown in the drawing. The user can retrieve the necessary information by searching the screens as shown in Table 10 to Table 15.

Description of Table 10-The software (screen) of the provided information used in the present invention is shown. In this screen, A government office, B
There are 16 types of panel from school to O and others, and the user can select a desired panel.

[0038]

[Table 10]

Explanation of 1 in Table 11 to Table 10 shows a screen when "B school" is selected. On this screen, the types of schools in this area are listed, and the user can select the desired school.

The explanations in 2 of Table 11 to Table 10 show the screens when "C medical" is selected.

[0041]

[Table 11]

Description of Table 12- [1. ×××
The screen when "x university" is selected is shown. In this screen,
Maps around the school are provided.

[0043]

[Table 12]

Description of Table 13- [1. ×××
The screen when "x university" is selected is shown. In this screen,
School summary information 1 is provided.

[0045]

[Table 13]

Explanation of Table 14: In Table 1-1, "1xxxxxx"
The screen when "x university" is selected is shown. In this screen,
Information 2 on school outline is provided.

[0047]

[Table 14]

[0048]

The method of receiving the latest map, road data, and guide data by radio waves does not require the possession of map data, and it has become possible to realize a compact and lightweight device consisting of a liquid crystal television monitor and a transceiver. It has the effect of instantly obtaining the latest road conditions and nearby living facility information. Further, the present invention provides a method and an apparatus that can be used to accurately determine position coordinates by combining with an existing satellite guidance map system, and to accurately determine position coordinates even for detailed maps such as town maps and residential maps.

[Brief description of drawings]

[Figure 1] First screen (Map of Gifu region)

[Fig. 2] Second screen (Map with No2 Ogaki selected in Fig. 1)

[Figure 3] 3rd screen (Station area-b-4-6 is selected map in Figure 2)

[Fig. 4] 4th screen (illustration diagram in which the station front image in Fig. 3 is selected)

FIG. 5: 5th screen (plan view in front of the station)

[Fig. 6] 6th screen (panoramic view in front of the station)

[Figure 7] 7th screen (symbol diagram in front of the station)

[Figure 8] 8th screen (enlarged map in front of the station)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location G08G 1/0962 1/0969 1/123 A 1/137 G09B 29/00 29/10 A H04Q 7 / 38

Claims (6)

[Claims] 1. A map transmitted from a road information image transmitting device, a road information image radio wave is received and drawn on the screen as a map or a map with road information added,
A position coordinate and enlarged map information display device characterized in that the position coordinate is determined from the azimuth radio wave from an artificial satellite or the geomagnetism and the current position is drawn on the map. 2. The road information image transmitting device is characterized in that it is constantly supplied with electric power energy, can be centrally controlled and managed, and is installed at a good location of a radio wave location.
A cross traffic light, b) road sign, c) power pole, d) cable television installation terminal, installed on a rooftop of a high-rise building, etc., and operates for a certain period of time by receiving a unique identification symbol. 1. The position coordinates and enlarged map information display device described in 1. 3. An identification symbol uniquely assigned to the road information image transmitting device (hereinafter referred to as an identification symbol) and information about an enlarged map area corresponding to the identification symbol are stored in a search data memory and manually identified by an operation unit. Position coordinates and map information are searched by a method of inputting a symbol or a method of receiving an identification symbol transmitted from the road information image transmitting apparatus according to claim 1 and automatically inputting this to the operation unit and displaying it on the screen. A device for determining position coordinates and displaying an enlarged map information, which is characterized by: 4. An identification symbol installed within the range is installed as a search code in position information obtained from a device that provides position coordinates and map information by means of radio wave reception from an artificial satellite, geomagnetism, radar detection method, etc. 4. The position coordinate determination and enlarged map information display device according to claim 3, wherein the identification symbol is manually or automatically input from the operation unit. 5. Arbitrary government agencies, medical services, etc. accompanying the coordinate display
Claim 1 characterized in that information on living facilities such as finance, food and drink, entertainment, sports, companies, tourism, shops, parks, etc. is provided.
Display system according to 4 above. 6. An apparatus according to claim 1, wherein the apparatus has an FM / AM receiver function, a pager function, a character information receiving function,
A transmission / reception coordinate display system and device with a subscriber telephone function.