JP2009171365A - Position information service providing system, method, program, mobile terminal and access point - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a position information service available not only indoors but also underground. <P>SOLUTION: A position information service providing system for providing position information through GPS positioning includes: an access point 103 which includes a radio LAN connection device 401, is installed at a place where a GPS satellite 104 cannot be utilized, and provides position information about the place of installation and map information around the place of installation; and a mobile terminal 101 which includes a GPS function and a radio LAN function, acquires position information and map information from the access point via radio LAN connection when the GPS satellite cannot be confirmed, and displays the position information on a map. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a location information service providing system for providing a location information service to a mobile terminal. In particular, the present invention relates to a location information service providing system, method, program, mobile terminal, and access point that can acquire location information even in an environment where positioning of the current location by GPS is impossible.

The position information service of the mobile terminal that is the premise of the present invention includes a service based on a positioning method using a base station. Since base stations are installed at intervals of about 500 m in the city center and about 2-3 km in the suburbs, an error of about 500 m to 3 km occurs in positioning.
The positioning method using the base station has a large error, and positioning becomes difficult when the base station cannot be used.

Recently, many mobile terminals have built-in GPS (Global Positioning System), and a high positioning accuracy of 5 to 10 m is realized when four or more artificial satellites can be used.
Positioning is possible by using a base station instead of a GPS satellite even in an environment where an artificial satellite cannot be seen. However, the influence of reflected waves increases, and in this case, the error is about several tens to several hundreds of meters.

Although it is a location information service using GPS satellites that realize high positioning accuracy, there is a problem that the location information service cannot be used indoors or underground where GPS satellites cannot be used.
In relation to such problems, there are the following conventional techniques.
Conventionally, in order to efficiently select data related to each area from data related to each area distributed in a batch, the distribution server indicates a range indicating the area range in the data related to each area A and B Information is added and distributed by multicast or broadcast, and each wireless terminal is distributed collectively based on its own location information acquired by radio waves from GPS satellites and range information added to the distributed data There is one that selects data related to a region where the user is present from data related to the region (see, for example, Patent Document 1).

However, in the above-mentioned Patent Document 1, the wireless terminal acquires its own position information by radio waves from the GPS satellite, but there is a problem that the position information service cannot be acquired indoors and underground where the GPS satellite cannot be used.
Conventionally, in order to provide an apparatus capable of suitably selecting a network in a network environment having a plurality of networks, one or more radio access networks, one or more radio core networks, and one or more radio service networks are provided. A network selection scheme operable in a network environment is provided, and after obtaining identification information for a particular network combination, the wireless user equipment device is operable to register with a roaming broker, thereby providing additional information. However, some devices may be provided to facilitate appropriate network selection (see, for example, Patent Document 2).

However, although the above-mentioned Patent Document 2 provides a device that can suitably perform network selection, as described above, there is a problem that a location information service cannot be acquired indoors or underground where GPS satellites cannot be used.
Another object of the present invention is to provide a communication device with an electronic money function that uses a prepaid function to improve convenience, and is a communication device with an electronic money function that uses wireless communication to provide an electronic money supply device. There is a communication device comprising: electronic money storage means for storing electronic money in storage means; and settlement means for paying a fee with the electronic money stored in the storage means by the electronic money storage means (for example, Patent Document 3) reference).

  However, although the above-mentioned Patent Document 3 provides a communication device with improved convenience, as described above, there is a problem that a location information service cannot be acquired indoors or underground where a GPS satellite cannot be used.

JP 2005-012462 A JP 2006-311558 A JP 2007-157045 A

  Therefore, in view of the above problems, the present invention aims to provide a location information service providing system, method, program, mobile terminal, and access point that can acquire location information services indoors and underground where GPS satellites cannot be used. To do.

  In order to solve the above problems, the present invention provides a location information service providing system that provides location information by GPS positioning, has a wireless LAN connection device, and is installed in a place where GPS satellites cannot be used. An access point that provides location information and map information around the place where it is installed, and if GPS satellites and wireless LAN functions cannot be confirmed, location information and map information can be obtained from the access point via a wireless LAN connection. There is provided a position information service providing system comprising: a mobile terminal that acquires and displays position information on a map.

Furthermore, when three GPS satellites can be confirmed in the mobile terminal, the position information acquired by GPS positioning can be collated with the position information acquired by the wireless LAN connection.
Further, the access point stores advertisement data, and the mobile terminal acquires advertisement data together with location information and map information from the access point via a wireless LAN connection, displays the location information on the map, and displays the advertisement. .

  Further, with respect to the longitude and latitude of the installed access point, the access point is set as the starting point of xy coordinates, the reachable distance of the wireless LAN is set as a radius, and the sector is divided into a plurality of sectors passing through the starting point. A wireless LAN connection device is provided for each sector, the average value of the xy coordinates on the circumference is obtained for each sector, the xy coordinates of the average value are added to the xy coordinates of the starting point, and the longitude and latitude of each sector are position information. And providing the location information of the sector to which the connected wireless LAN connection device belongs to the mobile terminal connected to the wireless LAN connection device.

  Further, a location information database is provided on the Internet, the location information database stores location information for the IP address of the access point, and the access point receives the IP information of the access point through a wireless LAN connection from the mobile terminal. Based on the information, the latitude / longitude information is extracted from the position information database, and the extracted latitude / longitude information is provided to the connected mobile terminal.

Further, the wireless LAN connection devices of the access point acquire mutual positional information by wireless LAN connection, and the access point is connected to the mobile terminal connected by wireless LAN together with the positional information of its own access point on the map. The location information of other access points is also displayed.
Further, the access point is provided with a Bluetooth connection device instead of a wireless LAN connection device, and provides location information to the mobile terminal connected to the Bluetooth connection device.

Further, the access point provides an RFID connection device instead of a wireless LAN connection device, and provides position information to the mobile terminal connected to the RFID connection device.
Further, the access point is provided with an infrared connection device instead of a wireless LAN connection device, and provides position information to the mobile terminal connected to the infrared connection device.
Furthermore, the present invention provides a method for providing a location information service that provides location information by GPS positioning, a step of confirming a GPS satellite by a mobile terminal, and an access point from the mobile terminal if the GPS satellite cannot be confirmed. A wireless LAN connection to the mobile terminal, and location information and map information stored in the access point are provided to the mobile terminal that has made the wireless LAN connection, and the mobile terminal is provided with the location information on the map. And providing a location information service providing method comprising the step of displaying.

  Furthermore, the present invention provides a location information service providing program for providing location information by GPS positioning, a procedure for confirming a GPS satellite by a mobile terminal, and an access point from the mobile terminal if the GPS satellite cannot be confirmed. A wireless LAN connection procedure, location information and map information stored in an access point to a mobile terminal that has made a wireless LAN connection, and location information on the map to the mobile terminal. And a position information service providing program characterized by comprising a display procedure.

  Furthermore, the present invention provides a mobile terminal that acquires position information by GPS positioning, has a wireless LAN connection device, is installed in a place where GPS satellites cannot be used, and the location information of the place to be installed, A wireless LAN unit that establishes a wireless LAN connection to an access point that provides surrounding map information, and if the GPS satellite cannot be confirmed, the wireless LAN unit acquires position information and map information from the access point, and is located on the map. A mobile terminal comprising a positioning unit for displaying information is provided.

  Furthermore, the present invention provides a wireless LAN connection device that performs wireless LAN connection to a mobile terminal at an access point installed at a location where GPS satellites cannot be confirmed, and a location information storage unit that stores location information of the access point And a map data storage unit that stores a map around the access point, and for mobile terminals that perform wireless LAN connection to the wireless LAN connection device, the location information of the access point from the location information storage unit, An access point is provided, wherein map data around the access point is provided from the map data storage unit and position information is displayed on a map.

  As described above, according to the present invention, the mobile terminal confirms the GPS satellite, and if the GPS satellite cannot be confirmed, the mobile terminal performs the wireless LAN connection to the access point, and the wireless LAN connection Since the location information and map information stored in the access point are provided to the mobile terminal that has performed and the location information is displayed on the map on the mobile terminal, the latitude and longitude on the GPS and access point Is stored, and the wireless connection device of the access point and the mobile terminal compatible with the wireless LAN perform communication, so that it is possible to acquire position information with a small measurement error even in indoor and underground locations where conventional position information services cannot be acquired. It becomes like this.

In addition, the accurate location information saved by the company that produces the map database, etc., allows the user to grasp the exact current location in the underground shopping street and easily return the flow of people to the underground shopping street. It becomes.
By making a sector and making a wireless LAN connection, it is possible to improve the accuracy of position information by the wireless LAN connection.

By using short-range communication such as Bluetooth, RFID, and infrared instead of wireless LAN connection, the accuracy of position information can be improved.
By connecting the access points with a wireless LAN and displaying the position information of itself and other access points on a map around the access point, the accuracy of the position information can be improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall view showing the concept of a location information service providing system according to the present invention. As shown in the figure, the mobile terminals 101 have functions of performing communication and communication with each other via the base station 102, and further, a wireless LAN (local area network) or a wireless WAN (wide area network). It also has a corresponding function.
The mobile terminal 101 acquires position information from a GPS (Global Positioning System) artificial satellite 104.

  Furthermore, the access point 103 is in a wireless broadband connection environment, and is installed in, for example, an indoor, underground coffee shop, restaurant, airport, hotel lobby, etc. as a place where the GPS satellite 104 and the base station 102 cannot be used. Location information as a hotspot service. In addition, the access point 103 is installed in the office and home where the GPS satellite 104 and the base station 102 cannot be used.

By connecting the mobile terminal 101 to the access point 103, the user feels as if the user is measuring the current position, and can acquire position information of the current position.
Since the arrival distance between the access point 103 and the mobile terminal 101 is short, the error can be reduced.
As described above, conventionally, there is a positioning method using the base station 102 and the GPS satellite 104 in the location information providing service. However, in the location information service providing system of the present invention, they cannot be used, or some of them cannot be used. In the situation, a wireless LAN connection device in which position information of latitude and longitude is registered in advance is installed at the access point, so that it can be used in place of the GPS satellite 104 by communicating with the mobile terminal 101. In other words, when the connection with the base station 102 and the GPS satellite 104 is impossible, the current position at the access point 103 is acquired and used as it is by the program.

  FIG. 2 is a block diagram showing a schematic configuration of the mobile terminal 101 in FIG. As shown in the figure, the mobile terminal 101 is provided with a radio unit 200. The radio unit 200 is a part that performs communication and communication with the base station 102, and further includes a GPS satellite 104 and a wireless LAN unit 202. The GPS unit 201 is a part that acquires position information from the GPS satellite 104, and the wireless LAN unit 202 is a part that acquires position information from the access point 103. For example, the communication is performed at a high frequency of 2.4 GHz and 5 GHz band. I do.

Note that the wireless unit 200 may be provided with a Bluetooth (BT) unit 203 and an RFID unit 204.
The Bluetooth (BT) unit 203 is near field communication, and the RFID unit 204 is a specific contact IC tag, which will be described later.
A control unit 300 is connected to the radio unit 200, and the control unit 300 includes a CPU (Central Processing Unit), a memory, and the like, and controls the entire mobile terminal 101.

The control unit 300 includes a speaker 301, a microphone 302, a key operation unit 303, a display unit 304, and an infrared unit 305.
The speaker 301 is a receiving unit, the microphone 302 is a transmitting unit, the key operation unit 303 is a part for operating information and functions by key operation, and the display unit 304 is a part for displaying menus, information, particularly a map. The infrared part 305 is a part that performs near field communication using infrared rays.

The control unit 300 includes a positioning unit 310. The positioning unit 310 processes the position information acquired from the base station 102, the GPS satellite 104, and the access point 103 via the wireless unit 200 into the current position of the mobile terminal 101, The processed current position is displayed on the map of the display unit 304.
FIG. 3 is a block diagram showing a schematic configuration of the access point 103 in FIG. As shown in the figure, the access point 103 includes a wireless LAN connection device 401, a location information storage unit 402, a map data storage unit 403, and an advertisement data storage unit 404.

  The wireless LAN connection device 401 has various communication distances for realizing a wireless broadband connection environment. For example, when connecting indoors and within the same floor (IEEE (American Institute of Electrical and Electronics Engineers) 802.11), a reach distance of 50 to 100 m, for example, When connecting the periphery of an individual (IEEE 802.15), the radius is about 10 m. As will be described later, Bluetooth or the like can also be used within this range.

The location information storage unit 402 registers longitude and latitude as location information of the access point 103 in advance.
The map data storage unit 403 stores the map data in the vicinity where the access point 103 is provided, for example, there is a store in an underground shopping mall.
The advertisement data storage unit 404 stores the advertisement data of a hot spot where the access point 103 is provided, for example, an advertisement for a store in an underground shopping mall.

The access point 103 is installed by a carrier (telecommunications carrier) and an Internet service provider (ISP), and an increase in convenience is expected for the carrier and ISP to increase the charge for the user's communication means.
The installation of the access point 103 increases the demand of the manufacturer of the wireless LAN connection device 401, leading to an improvement in profit.

The map data can be stored in the map data storage unit 403 by the map production company providing its own location database, and the provision cost is realized by the store paying the map company with the profits paid by the user. It is a big profit for the production company.
The hot spot stored in the advertisement data storage unit 404 is stored by the advertiser, and the right to use the hot spot is given as the reward. This facilitates installation of the access point 103 and registration of position information.

Users (customers) using hotspots come to the store, the customer draw rate of the store increases, and profits increase.
FIG. 4 is a diagram showing an example of position information displayed on the display unit 304 of the mobile terminal 101 in FIG. As shown in the figure, a map of the access point 103 is displayed on the display unit 304, the location information of the mobile terminal 101 is displayed on the map, and the address of the access point 103 and the access point 103 are installed. If the place is a store, the store name is displayed. Further, an advertisement is displayed on the display unit 304.

FIG. 5 is a flowchart illustrating an operation example of the positioning unit 310 of the control unit 300 in FIG. As shown in this figure, in step S501, the positioning unit 310 of the control unit 300 starts positioning in response to a request from the user's key operation unit 303.
In step S502, the positioning unit 310 confirms whether or not the position information of four or more GPS satellites 104 has been acquired based on the position information from the GPS unit 201 of the wireless unit 200. If it cannot be confirmed, the process proceeds to step S504.

In step S503, if acquisition of position information of four or more GPS satellites 104 can be confirmed, the positioning unit 310 uses the position information of four or more GPS satellites 104 acquired from the GPS unit 201 to determine the current position of the mobile terminal 101. Is calculated, displayed on the map of the display unit 304, provided to the user, and the process ends.
In step S <b> 504, the positioning unit 310 confirms whether the wireless LAN unit 202 of the wireless unit 200 can be connected. If connection is impossible, the process proceeds to step S508.

In step S505, if the connection is possible, the positioning unit 310 confirms whether or not the position information of the three GPS satellites 104 can be acquired from the GPS unit 201 of the wireless unit 200 based on the position information.
In step S506, when acquisition of the position information of the three GPS satellites 104 can be confirmed, the positioning unit 310 calculates the current position of the mobile terminal 101 from the position information of the three GPS satellites 104 acquired from the GPS unit 201. Further, the current position of the mobile terminal 101 is calculated from the position information of the access point 103 acquired from the wireless LAN unit 202. Since the current position of the mobile terminal 101 from the position information of the access point 103 acquired from the wireless LAN unit 202 may cause an error as will be described later, the mobile terminal from the position information of the three GPS satellites 104 The final current position is also displayed on the map of the display unit 304 by collating with the positioning result of the current position 101, provided to the user, and the process ends.

  If the acquisition of the position information of the three GPS satellites 104 cannot be confirmed in step S507, the current position of the mobile terminal 101 is calculated from the position information of the access point 103 acquired from the wireless LAN unit 202, and the display unit 304 To be displayed on the map and provided to the user. In other words, when the number of GPS satellites 104 is two or less and GPS satellites 104 cannot be confirmed as in an indoor or underground environment, the positional information acquired by the wireless LAN unit 202 remains as it is. Provide and finish the process.

In step S508, the positioning unit 310 confirms whether or not the radio unit 200 and the base station 102 can be connected. If it cannot be confirmed, the process is terminated.
In step S509, when the base station 102 can be connected, the positioning unit 310 confirms whether or not the position information of the three GPS satellites 104 can be acquired from the GPS unit 201 of the wireless unit 200. If the acquisition of the position information of the three GPS satellites 104 cannot be confirmed, the process ends.

  In step S510, when the acquisition of the position information of the three GPS satellites 104 can be confirmed, the positioning unit 310 calculates the current position of the mobile terminal 101 from the position information of the three GPS satellites 104 acquired from the GPS unit 201. Further, the current position of the mobile terminal 101 is calculated from the positioning of the base station 102. Since the current position of the mobile terminal 101 from the positioning of the base station 102 may cause an error, it is also checked against the positioning result of the current position of the mobile terminal 101 from the position information of the three GPS satellites 104. The final current position is displayed on the map of the display unit 304, provided to the user, and the process ends.

  Therefore, in the past, shopping malls in underground shopping streets are difficult to understand geography and lose their direction, so some people rely on navigation to find their destination, but in this environment GPS cannot be used in principle. Since it is difficult to connect to a station, it tends to flow to a ground environment where mobile terminals can be comfortably used. However, according to the present invention, latitude and longitude are stored in the access point, and the wireless connection device of the access point and the wireless Communication with a LAN-compatible mobile terminal makes it possible to acquire information with a small measurement error even in indoor and underground locations where location information services cannot be acquired conventionally.

In addition, the company that produces the map database can display accurate location information on the map around the access point, and the user can grasp the exact current location in the underground shopping street, and the flow of people It is easy to return to the underground shopping street.
Hereinafter, an example will be described in which the accuracy of position information acquired by wireless LAN connection to the access point 103 is improved by sectorization.

  FIG. 6 is a diagram for explaining position information acquired by the mobile terminal when it is divided into three sectors. As shown in this figure, an access point 103 is the starting point, the x-axis is longitude, the y-axis is latitude, and the coordinates of the access point 103 that is the starting point are (x0, y0). The distance between the (user position) and the access point 103 is defined as r, and the angle between the mobile terminal 101 (user position) and the access point 103 and the x coordinate is defined as θ.

Here, starting from the access point 103, the sector-shaped θ = 30 to 150 degrees is the sector 1, θ = 150 to 270 degrees is the sector 2, θ = 150 to 30 degrees is the sector 3, and the circumference of the radius r is 3 Divide into two sectors.
The accent point 103 is provided with a wireless LAN connection device 401-1, a wireless LAN connection device 401-2, and a wireless LAN connection device 401-3 for sector 1, sector 2, and sector 3, respectively.

The xy coordinates when the user having the mobile terminal 101 moves from the access point 103 that is the starting point on the circumference of the radius r every time are expressed as follows:
x = r * cos θ
y = r * sinθ
And the average value of the xy coordinates in the sector 1 (x1, y1), the average value of the xy coordinates in the sector 2 (x2, y2), and the average value of the xy coordinates in the sector 3 (x3, y3), The position information of sector 1 is (x0 + x1, y0 + y1), the position information of sector 2 is (x0 + x2, y0 + y2), and the position information of sector 3 is (x0 + x3, y0 + y3).

FIG. 7 is a diagram for explaining the average value of the xy coordinates of each sector position in FIG. As shown in this figure, when the distance between the mobile terminal 101 (user position) and the access point 103 is r = 100 m, the x coordinate of the mobile terminal 101, the average value of the x coordinate, The difference between the x coordinate of the mobile terminal 101 and the average value of the x coordinate is as shown in FIG. 5A. In each sector, the y coordinate of the mobile terminal 101, the average value of the y coordinate, the movement The difference between the y-coordinate of the body terminal 101 and the average value of the y-coordinate is as shown in FIG. 4B. In this case, a maximum error of 86.0 m at the longitude x and 91.2 m at the latitude y is generated. .
FIG. 8 is a diagram for explaining position information registered in the position information storage unit 402.

  As shown in the figure, the location information storage unit 402 stores (x0 + x1, y0 + y1) as location information of the sector 1 in which the wireless LAN connection device 401-1 is provided as location information of the access point 103, and wireless LAN connection. (X0 + x2, y0 + y2) is stored as position information of the sector 2 where the device 401-2 is provided, and (x0 + x3, y0 + y3) is stored as position information of the sector 3 where the wireless LAN connection device 401-3 is provided.

  When the mobile terminal 101 is connected to the wireless LAN connection device 401-1, location information (x0 + x1, y0 + y1) is provided from the location information storage unit 402 to the mobile terminal 101, and the mobile terminal 101 is connected to the wireless LAN connection device 401-2. When connected, the mobile terminal 101 is provided with location information (x0 + x2, y0 + y2) from the location information storage unit 402. When the mobile terminal 101 is connected to the wireless LAN connection device 401-3, the mobile terminal 101 receives the location information from the location information storage unit 402. Location information (x0 + x3, y0 + y3) is provided.

  In this embodiment, the case where the wireless LAN connection distance of the wireless LAN connection device 402 of the access point 103 is the maximum (r = 100 m) is considered, but in reality, the wireless LAN connection device 401-1 installed at the access point 103, Since the distance between the wireless LAN connection device 401-2 and the wireless LAN connection device 401-3 and the mobile terminal 101 is short, the accuracy can be further improved.

  In particular, since wireless LAN performs communication at high frequencies of 2.4 GHz and 5 GHz bands, in addition to its characteristics as a wave, it has a straight line like light, and the influence of interference with adjacent sectors can be reduced. By providing the wireless LAN connection device 401 with directivity, it is possible to avoid congested communication traffic concentrated on one point of one access point 103 at a place where many users gather.

  FIG. 9 is a modified example of FIG. 6 and is a diagram for explaining location information acquired by the mobile terminal when it is divided into five sectors. As shown in this figure, compared to FIG. 6, sector-shaped θ = 18 to 90 degrees passing through the starting point is sector 1, θ = 90 to 162 degrees is sector 2, and θ = 162 to 234 degrees is sector 3. And θ = 234 to 306 degrees is set as sector 4, θ = 306 to 18 degrees is set as sector 5, and the circumference of radius r is divided into five sectors.

Accent point 103 includes wireless LAN connection device 401-1, wireless LAN connection device 401-2, wireless LAN connection device 401-3, and wireless LAN connection device for sector 1, sector 2, sector 3, sector 4 and sector 5. 401-4 and a wireless LAN connection device 401-5 are provided.
Average value of xy coordinates in sector 1 (x1 ′, y1 ′), average value of xy coordinates in sector 2 (x2 ′, y2 ′), average value of xy coordinates in sector 3 (x3 ′, y3 ′) When the average value of the xy coordinates in the sector 4 (x4 ′, y4 ′) and the average value of the xy coordinates in the sector 5 (x5 ′, y5 ′), the position information of the sector 1 is (x0 + x1 ′, y0 + y1 ′) ), The position information of sector 2 is (x0 + x2 ′, y0 + y2 ′), the position information of sector 3 is (x0 + x3 ′, y0 + y3 ′), the position information of sector 4 is (x0 + x4 ′, y0 + y4 ′), and the position information of sector 5 is (X0 + x5 ′, y0 + y5 ′).

  FIG. 10 is a diagram for explaining the average value of the xy coordinates of each sector position in FIG. As shown in this figure, when the distance between the mobile terminal 101 (user's position) and the access point 103 is r = 100 m, compared to FIG. The average value of the x-coordinate and the difference between the x-coordinate of the mobile terminal 101 and the average value of the mobile terminal 101 are as shown in FIG. The average value of the y-coordinate and the difference between the y-coordinate of the mobile terminal 101 and the y-coordinate are as shown in this figure (b). In this case, the longitude x is 58.8 m and the latitude y is 59. A maximum error of .8 m occurs and can be made smaller than in the case of FIG.

FIG. 11 is a diagram for explaining position information registered in the position information storage unit 402.
As shown in the figure, the location information storage unit 402 stores (x0 + x1 ′, y0 + y1 ′) as location information of the sector 1 in which the wireless LAN connection device 401-1 is provided as location information of the access point 103. (X0 + x2 ′, y0 + y2 ′) is stored as the position information of the sector 2 where the LAN connection device 401-2 is provided, and (x0 + x3 ′, y0 + y3 ′) is the position information of the sector 3 where the wireless LAN connection device 401-3 is provided. Is stored, (x0 + x4 ′, y0 + y4 ′) is stored as the position information of the sector 4 where the wireless LAN connection device 401-4 is provided, and (x0 + x5) is stored as the position information of the sector 5 where the wireless LAN connection device 401-5 is provided. ', Y0 + y5') is saved.

  When the mobile terminal 101 is connected to the wireless LAN connection device 401-1, location information (x0 + x1 ′, y0 + y1 ′) is provided to the mobile terminal 101 from the location information storage unit 402, and the mobile terminal 101 is connected to the wireless LAN connection device 401-. 2, location information (x0 + x2 ′, y0 + y2 ′) is provided to the mobile terminal 101 from the location information storage unit 402. When the mobile terminal 101 is connected to the wireless LAN connection device 401-3, the location information is provided to the mobile terminal 101. When the location information (x0 + x3 ′, y0 + y3 ′) is provided from the storage unit 402 and the mobile terminal 101 is connected to the wireless LAN connection device 401-4, the location information (x0 + x4 ′, y0 + y4) is transmitted from the location information storage unit 402 to the mobile terminal 101. ') Is provided, and the mobile terminal 101 connects to the wireless LAN connection device 401-5. Position information from the position information storage unit 402 to 101 (x0 + x5 ', y0 + y5') is provided.

  In this way, high positioning accuracy can be realized by increasing the number of sectors.

  FIG. 12 is a conceptual diagram illustrating the storage of the access point 103 in FIG. 3 in the map data storage unit 403. For the map data storage unit 403 of the access point 103 in FIG. 3, the position information may be registered in advance in each access point 103, but already planned or produced in a GPS map database, etc. You may leave it to a company that provides software development and information services. For example, as shown in FIG. 12, the above-mentioned company has a location information database server 105 storing dedicated longitude / latitude information on the Internet, and the access point 103 acquires location data indicating its location. It is also possible to use a system.

The location information database 105 stores latitude and longitude for the IP (Internet Protocol) information unique to the access point 103.
When the mobile terminal 101 connects to the access point 103 via the wireless LAN, the access point 103 extracts latitude / longitude information from the location information database 105 based on the unique IP information of the access point 103 via the Internet. The extracted latitude / longitude information is given to the connected mobile terminal 101.

  If there is a base station 102 that can be connected to the mobile terminal 101, the latitude / longitude information extracted from the location information database 105 to the mobile terminal 101 is given via the base station 102.

Next, when the number of access points 103 increases, the distance between the access points 103 is reduced, and communication between the wireless LAN connection devices 401 becomes possible.
FIG. 13 is a modification of FIG. 4, and is a diagram illustrating an example of position information displayed on the display unit 304 of the mobile terminal 101. As shown in the figure, a map of the access point 103 is displayed on the display unit 304, the location information of the mobile terminal 101 is displayed on the map, and the address of the access point 103 and the access point 103 are installed. When the location is a store, the store name is displayed, and further, the location information is acquired from another access point 103 by wireless LAN communication, and the acquired location information of the other access point 103 is displayed on the map. An advertisement is displayed in part 304.

Even if one access point 103 cannot be confirmed, other access points 103 can be confirmed, and as a result, the accuracy of the position information is improved.
FIG. 14 is a diagram for explaining an effect associated with an increase in the number of access points 103. As shown in the figure, in step S521, a hot spot of the access point 103 where the position information is registered is installed.
In step S522, the advertising right by the installer is generated.
In step S523, the installed store attracts a large number of customers due to the advertisement. By repeating the above steps, more accurate location information can be provided as the hot spot of the access point 103 increases.

The installation of a hot spot at the access point 103 generates benefits for users, cartographies, carriers, and ISPs.
Advertisers benefit from the generation of advertising rights.
Profits are generated to the store owner due to the large number of customers at the store.
Providing accurate location information will generate benefits for users, advertisers, shopkeepers, and cartography companies.

In the above description, the mobile terminal compatible with the wireless LAN has been described. However, instead of the wireless LAN connection device 401, a Bluetooth connection device is provided between the mobile terminal 101 and the access point 103, and the Bluetooth (BT) unit 203 is accessed. Position information may be acquired from the point 103. In this case, since the communication distance of the Bluetooth connection is communication within a radius of about 10 m, the error can be suppressed small without performing sectoring as in the case of using the wireless LAN, and the accuracy of the position information is improved.

  Further, instead of the wireless LAN connection device 401, an RFID connection device is provided between the mobile terminal 101 and the access point 103, and the RFID unit 204 having a contactless ID acquires position information from the reader / writer of the access point 103. In this case, since the communication distance of the RFID connection is short, the accuracy of the position information is improved.

  Further, instead of the wireless LAN connection device 401, infrared communication is used between the mobile terminal 101 and the access point 103, and the infrared unit 305 acquires position information from the access point 103 using infrared rays. In this case, since the communication distance of the infrared connection is short, the accuracy of the position information is improved.

  In the above description, the mobile terminal has been described. However, the present invention can be applied to a mobile phone, a PHS (simple mobile phone), and a PDA (mobile information terminal).

It is a general view which shows the concept of the positional information service provision system which concerns on this invention. It is a block diagram which shows schematic structure of the mobile terminal 101 in FIG. It is a block diagram which shows schematic structure of the access point 103 in FIG. FIG. 3 is a diagram showing an example of position information displayed on a display unit 304 of the mobile terminal 101 in FIG. 2. It is a flowchart explaining the operation example of the positioning part 310 of the control part 300 in FIG. It is a figure explaining the example of the positional information registered into the positional information storage part 402 of the access point 103 in FIG. It is a figure explaining the average value of xy coordinate of each sector position in FIG. It is a figure explaining the positional information registered into the positional information storage part 402. FIG. FIG. 7 is a modification of FIG. 6 and is a diagram for explaining position information acquired by a mobile terminal when divided into five sectors. It is a figure explaining the average value of xy coordinate of each sector position in FIG. It is a figure explaining the positional information registered into the positional information storage part 402. FIG. It is a conceptual diagram explaining the preservation | save to the map data preservation | save part 403 of the access point 103 in FIG. FIG. 5 is a modification of FIG. 4 and shows an example of position information displayed on the display unit 304 of the mobile terminal 101. It is a figure explaining the effect accompanying the increase in the access point 103. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Position information service provision system 101 ... Mobile terminal 102 ... Base station 103 ... Access point 104 ... GPS satellite 105 ... Position information database 200 ... Wireless part 201 ... GPS part 202 ... Wireless LAN part 203 ... Bluetooth part 204 ... RFID part 300 ... Control unit 301 ... Speaker 302 ... Microphone 303 ... Key operation unit 304 ... Display unit 305 ... Infrared unit 310 ... Positioning unit 401 ... Wireless LAN connection device 402 ... Location information storage unit 403 ... Map data storage unit 404 ... Advertising data storage Part

Claims (13)

In a location information service providing system that provides location information by GPS positioning,
An access point that has a wireless LAN connection device, is installed in a location where GPS satellites cannot be used, and provides location information of the location where the GPS satellite is installed, and map information around the location,
A mobile terminal that has a GPS function and a wireless LAN function, and that obtains position information and map information from the access point via a wireless LAN connection and displays the position information on a map when the GPS satellite cannot be confirmed. Feature location information service providing system. The position information acquired by GPS positioning and the position information acquired by the wireless LAN connection can be collated when the mobile terminal can check three GPS satellites. Location information service provision system. The access point stores advertisement data, and the mobile terminal acquires advertisement data together with location information and map information from the access point via a wireless LAN connection, displays the location information on the map, and displays the advertisement. The position information service providing system according to claim 1, characterized in that it is characterized in that: With respect to the longitude and latitude of the access point installed, the access point is set as a starting point of xy coordinates, the reachable distance of the wireless LAN is set as a radius, and the sector is divided into a plurality of sectors passing through the starting point. Wireless LAN connection equipment is provided, the average value of the xy coordinates on the circumference is obtained for each sector, the xy coordinates of the average value are added to the xy coordinates of the starting point, and the longitude and latitude of each sector are stored as position information The position information service providing system according to claim 1, wherein the position information service providing system according to claim 1, wherein the position information of a sector to which the connected wireless LAN connection device belongs is provided to a mobile terminal connected to the wireless LAN connection device. A location information database is provided on the Internet, the location information database stores location information for the IP address of the access point, and the access point is based on the IP information of the access point through a wireless LAN connection from the mobile terminal. 2. The location information service providing system according to claim 1, further comprising: extracting latitude / longitude information from the location information database and providing the extracted latitude / longitude information to the connected mobile terminal. . The wireless LAN connection devices of the access point acquire mutual positional information by wireless LAN connection, and the access point is connected to the mobile terminal connected to the wireless LAN with other positional information of its own access point on the map. The location information service providing system according to claim 1, wherein location information of the access point is also displayed. The location information according to claim 1, wherein the access point is provided with a Bluetooth connection device instead of a wireless LAN connection device, and provides the location information to the mobile terminal connected to the Bluetooth connection device. Service provision system. The location information according to claim 1, wherein the access point is provided with an RFID connection device instead of a wireless LAN connection device, and provides location information to the mobile terminal connected to the RFID connection device. Service provision system. 2. The location information according to claim 1, wherein the access point is provided with an infrared connection device instead of a wireless LAN connection device, and provides location information to the mobile terminal connected to the infrared connection device. Service provision system. In a location information service providing method for providing location information by GPS positioning,
A step of confirming a GPS satellite by a mobile terminal;
When the GPS satellite cannot be confirmed, a step of performing a wireless LAN connection from the mobile terminal to the access point;
Providing location information and map information stored in an access point to a mobile terminal that has made a wireless LAN connection, and causing the mobile terminal to display location information on a map. Location information service provision method. In a location information service providing program that provides location information by GPS positioning,
A procedure for confirming a GPS satellite by a mobile terminal;
When the GPS satellite cannot be confirmed, a procedure for performing a wireless LAN connection from the mobile terminal to the access point;
Providing location information and map information stored in an access point to a mobile terminal that has made a wireless LAN connection, and causing the mobile terminal to display location information on a map. Location information service provision program. In a mobile terminal that acquires position information by GPS positioning,
A wireless LAN unit that has a wireless LAN connection device, is installed in a location where GPS satellites cannot be used, and performs wireless LAN connection to an access point that provides location information of the installed location and map information around the installed location; ,
A mobile terminal comprising: a positioning unit that acquires position information and map information from the access point by the wireless LAN unit when the GPS satellite cannot be confirmed, and displays the position information on a map. In an access point installed in a place where GPS satellites cannot be confirmed,
A wireless LAN connection device that performs wireless LAN connection to a mobile terminal;
A location information storage unit for storing location information of the access point;
A map data storage unit for storing a map around the access point;
Provide location information of the access point from the location information storage unit and map data around the access point from the map data storage unit to the mobile terminal performing the wireless LAN connection to the wireless LAN connection device, An access point that displays position information.

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