JP2004341460A - Method and device for displaying map - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for displaying a present position on a map of a map application of a mobile phone or a portable information terminal by obtaining the present position replacing a GPS receiver. <P>SOLUTION: In the map display method and device, the longitude and the latitude of a building and a structure are obtained, and recorded in a recording medium such as a bar-code and a wireless IC tag to be stuck on the building and the structure whose longitude and latitude are obtained. A map application capable of displaying the present position from the longitude and the latitude is installed in the mobile phone or the portable information terminal, the longitude and the latitude are read from the recording medium stuck on the building or the structure, and the present position is displayed on the map of the map application c1 of the mobile phone or the portable information terminal. Thus, calculation for supplementing with a GPS satellite or obtaining the longitude and the latitude is made unnecessary, and the longitude and the latitude can be instantly obtained even at a place such as underground or inside a building where the GPS satellite cannot be seen, and no errors occur in the longitude and the latitude of the present position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and apparatus for acquiring the longitude and latitude of a current location instead of a GPS receiver, and displaying the current location on a map of a map application of a mobile phone / portable information terminal from the longitude and latitude.
[0002]
[Prior art]
In the current location information service using a mobile phone or PHS, an error of "several tens to hundreds of meters" (KDDI) or "around 100 meters in the city center" (DDI pocket) occurs.
In the portable information terminal, an error occurs between the longitude and latitude acquired by the GPS receiver and the longitude and latitude of the current location.
Further, the calculation for obtaining the longitude and the latitude requires a high CPU capability and a battery life of the GPS receiver.
[0003]
Whereas the conventional location information service using a mobile phone or PHS basically determines the location of a terminal based on information from each base station, gpsOne uses GPS used in a car navigation system or the like. Receives radio waves from satellites and measures position. Furthermore, by using the position information held by the base station, the position can be specified even when the GPS satellite is not visible, but an error occurs.
Non-patent literature: http: // www. zdnet. co. jp / mobile / 0104/04 / gpsone. html
[0004]
[Problems to be solved by the invention]
In the GPS receiver of the portable information terminal,
When the GPS receiver is cold-started, it takes time to supplement the GPS satellites.
Hot start of the GPS receiver consumes the battery.
For example, GPS receivers for supplementing GPS satellites and calculating longitude and latitude have problems with CPU capability and battery life.
In addition, both the acquired longitude and latitude and the longitude and latitude of the current location have errors in both the portable information terminal and the portable telephone.
To use map information more effectively, highly accurate location information services and devices are indispensable.
[0005]
Instead of a GPS receiver, there is provided a method and apparatus for acquiring the longitude and latitude of a current location and displaying the current location on a map of a map application of a mobile phone or a portable information terminal.
[0006]
[Means for Solving the Problems]
A recording medium;
A recording medium reading device;
A mobile phone or personal digital assistant,
For mobile phones, personal digital assistants, and map applications,
Obtain the longitude and latitude of the building / construction on the street in advance, record it on the recording medium, and paste it on the building / construction of the street where the longitude and latitude were acquired,
Reading unit of mobile phone or personal digital assistant,
Or by a reader
The longitude and the latitude are read from the recording medium, the longitude and the latitude of the building / construction are obtained from the decoded information, and the current position is displayed on the map of the mobile phone or the map application of the mobile information terminal from the longitude and the latitude. .
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
The configuration of the embodiment is shown below.
The map display method and apparatus according to the present invention include:
A sticker with a barcode or wireless IC tag attached [A]
Bar code or wireless IC tag reader [B: Bar code reader in the figure]
A mobile phone or a mobile information terminal [C];
Map application [C1],
It comprises a communication section [C2] of a mobile phone or a mobile information terminal.
[0008]
Barcodes that record longitude and latitude are barcodes used in computer automatic input systems (automatic recognition technology), which are affixed to products as JAN codes and used in combination with POS systems for logistics management and sales management. Is a one-dimensional or two-dimensional barcode.
[0009]
A wireless IC tag (formally called RFID: Radio Frequency Identification) is a tiny tag that can read and write information such as an ID on an IC chip by radio waves. Since the operation is performed by supplying power from the reading antenna, a power source is unnecessary and can be used repeatedly.
The sticker [A] has a barcode or a wireless IC tag attached thereto.
[0010]
A bar code or wireless IC tag reader [B] is a reader used in a computer automatic input system (automatic recognition technology). The bar code or wireless IC tag attached to a product combined with a POS system is optically read. Or, it can be read by a method via communication and used for distribution management and sales management.
[0011]
The map application [C1] is a function that generates a vector map that expresses the components of the map by line segments, a raster map that expresses the map as an image, and the location information and surrounding information of buildings and structures on the map. It has a function to display in combination.
[0012]
The reading unit of the mobile phone or the mobile information terminal reads a barcode or a wireless IC tag by an optical or communication method.
[0013]
The communication unit [C2] of the mobile phone or the portable information terminal receives the barcode or the read information from the communication unit [B3] of the wireless IC tag reading device [B].
[0014]
As described above, instead of the GPS receiver, a method and apparatus for acquiring the longitude and latitude of the current location and displaying the current location on the map of the map application of the mobile phone / portable information terminal [C] based on the longitude and latitude are provided. .
[0015]
An embodiment is shown below with reference to the overall configuration diagram of the system (FIG. 2).
The longitude and latitude of a street building / construction are acquired in advance by a highly accurate method using the world geodetic system or a unique geodetic system.
[0016]
Longitude and latitude are expressed as 35 ° 43'37 ”N latitude and 137 ° 02'14” East longitude. Between the GPS receiver and the navigation device to exchange data with mobile phones and personal digital assistants. According to the standard (NMEA-0183) for communication using a serial port, longitude and latitude are recorded on a barcode or a recording medium of a wireless IC tag [A] (FIG. 3), and the building and a sticker are recorded as stickers. Attach to the structure.
[0017]
When the user wants to check the current location on a map on the street, the user starts the map application [C1] of the mobile phone / portable information terminal [C], and reads a barcode or a mobile phone / portable information terminal having a wireless IC tag reading unit. [C], or a barcode reader [B] or a wireless IC tag reader reads the longitude and latitude in a NMEA format from a recording medium such as a barcode or a wireless IC tag on the sticker [A].
[0018]
In the case of a bar code reader [B] or a wireless IC tag reader, the read longitude and latitude are transmitted from the communication section [B3] of the apparatus to the communication section [C2] of the mobile phone / portable information terminal.
From the read or received longitude and latitude, the current location is displayed on the map of the map application of the mobile phone / portable information terminal.
[0019]
If various data such as a map, a town page, and an advertisement are included as the data of the map application, the peripheral information of the current location can be acquired.
【Example】
The longitude and latitude of a building (such as a convenience store) and a building (such as a utility pole) are acquired in advance by a highly accurate method using the world geodetic system or a unique geodetic system.
[0020]
According to the standard (NMEA-0183) for communication between the GPS receiver and the navigation device using a serial port, the data is recorded on a recording medium such as a barcode or a wireless IC tag to prevent contamination. Therefore, a sticker [A] that is covered with a transparent cover or the like that does not impair the reading is attached to the telephone pole.
[0021]
At this time, a plurality of media such as a one-dimensional barcode, a two-dimensional barcode, and a wireless IC tag are selected on the recording medium on the sticker so that the longitude and the latitude can be obtained. Attach an icon indicating that it can be used in the application, and attach it to an easy-to-use location on a street building (such as a convenience store) or a building (such as a telephone pole).
Further, an address may be displayed on the sticker [A].
[0022]
The sticking place is a building such as a store or a public facility, or a structure such as a telephone pole or a traffic sign pole.
In particular, telephone poles are the only advertising media that can be posted on public roads.
The user obtains the longitude and latitude recorded on the recording medium on the sticker by the reading unit of the mobile phone / portable information terminal [C] or the reading unit [B4] of the reading device [B]. In the case of a wireless IC tag, the longitude and the latitude can be acquired simply by holding the wireless IC tag over the sticker, thereby increasing convenience.
[0023]
From the acquired longitude and latitude, the map is created along the world geodetic system or the original geodetic system of the map application [C1] of the mobile phone / portable information terminal [C]. A map is displayed.
[0024]
If various data such as a map, a town page, an advertisement, and a text for reproducing sound are included as the data, it is possible to acquire information on the surroundings of the current location.
[0025]
In addition, the current location is identified from the acquired longitude and latitude, and even in the event that GPS is not available, such as in a disaster, crime prevention, fire, first aid, etc., use the mobile phone to contact the responsible department in emergency situations, such as in public use. Available.
[0026]
In addition, information that guides the street is included in the wireless IC tag, and when a person with a mobile phone / mobile information terminal [C] approaches using the proximity sensing function of the wireless IC tag, the message “There is a crossroad 5 meters away . ", A person with visual impairment can more safely walk on the street by reproducing the voice guide from the mobile phone / portable information terminal [C].
[0027]
【The invention's effect】
As described above, according to the present invention, it is not necessary to supplement the GPS satellites or to calculate the longitude and latitude. Even if the GPS satellites are not visible, such as underground or inside a building, the longitude and latitude are instantaneous. And provide a map display method and device that does not cause an error in the acquired longitude and latitude and the longitude and latitude of the current location, and can effectively utilize the buildings and structures on the street as a social information infrastructure .
[Brief description of the drawings]
[Fig. 1] Bar code reader [Fig. 2] Overall configuration of the system [Fig. 3] Block configuration diagram Sticker [Fig. 4] Block configuration diagram Bar code reader [Description of symbols]
A sticker B barcode reader B1 read button B2 send button B3 communication unit B4 reading unit C portable information terminal C1 map application C2 communication unit

Claims (1)

A recording medium;
A recording medium reading device;
A mobile phone or personal digital assistant,
For mobile phones, personal digital assistants, and map applications,
Obtain the longitude and latitude of the building / construction on the street in advance, record it on the recording medium, and paste it on the building / construction of the street where the longitude and latitude were acquired,
Reading unit of mobile phone or personal digital assistant,
Or by a reader
A map display method and apparatus, wherein a longitude and a latitude are read from the recording medium, and a current location is displayed on a map of a mobile phone or a map application of a portable information terminal from the decoded longitude and the latitude.

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