KR20090061898A - Service method and system for providing location information of mobile terminal - Google Patents

Service method and system for providing location information of mobile terminal Download PDF

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Publication number
KR20090061898A
KR20090061898A KR1020070128902A KR20070128902A KR20090061898A KR 20090061898 A KR20090061898 A KR 20090061898A KR 1020070128902 A KR1020070128902 A KR 1020070128902A KR 20070128902 A KR20070128902 A KR 20070128902A KR 20090061898 A KR20090061898 A KR 20090061898A
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KR
South Korea
Prior art keywords
mobile terminal
location information
module
wireless communication
information providing
Prior art date
Application number
KR1020070128902A
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Korean (ko)
Inventor
김종득
Original Assignee
(주) 엘지텔레콤
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Priority to KR1020070128902A priority Critical patent/KR20090061898A/en
Publication of KR20090061898A publication Critical patent/KR20090061898A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H04W4/026—Services making use of location information using location based information parameters using orientation information, e.g. compass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A location information providing method of a mobile terminal and a system thereof installing a short range wireless communications module at the entrance of a building are provided to confirm the location by using the moving information of the mobile terminal by installing the short range wireless communications module. A mobile terminal comprises a mobile communications module, a wireless local communications module, and an acceleration sensor. A wireless communications network(30) relays the mobile communications of the mobile terminal. A location information providing server(60) provides the location information about the mobile terminal through the wireless network. A notifying module(80) is installed at the building entrance for performing short range communication and short range communication module. The notifying module includes a unique identification module.

Description

Service method and system for providing location information of mobile terminal

The present invention relates to a method and system for determining a location of a mobile terminal, and more particularly, to a system and a method for identifying an accurate location even when a mobile terminal enters a building and GPS signal reception is impossible.

With the development of mobile communication technology and related technologies, mobile terminals of recent years have played the role of a comprehensive information medium that can transmit and receive multimedia data through wireless Internet or mobile Internet, beyond the scope of simple communication means.

In particular, recently, a location based service (LBS), which provides a predetermined service after grasping a user's current location by using a feature that the user always carries, has attracted attention.

Such location-based services include services that provide traffic information and map information of surrounding areas, friend search services, and emergency relief services.

In order to provide location-based services, the current location of a mobile terminal must be checked first, and the location verification method is largely divided into a GPS (Global Positioning System) method and a cell-based method.

The cell-based method uses a plurality of base station signals. Specifically, a TOA (Time of Arrival) method for measuring a propagation time between a base station and a mobile terminal and obtains a distance, and a TDOA using a propagation time difference from two signal sources. (Time Difference of Arrival) method.

The GPS method is a method in which a mobile terminal having a GPS receiver determines a location of the mobile terminal using GPS signals transmitted from at least four GPS satellites, and has a higher accuracy than a cell-based method.

However, when a mobile terminal is located in a building, it cannot receive a GPS signal and thus cannot be located, or a cell-based method with low accuracy is required.

Recently, in order to solve this problem, as disclosed in Korean Patent Laid-Open Publication No. 2007-35381, a plurality of Bluetooth transmission and reception means are installed in various places inside a building, and the mobile terminal is located near the Bluetooth transmission and reception means that communicates with the mobile terminal. A method of judging it has been proposed.

However, this method requires a large number of Bluetooth transceivers in each building, so there is a problem in that the cost is large for wide application.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problem, and an object of the present invention is to provide a method and a system capable of identifying a location of a mobile terminal more accurately and inexpensively even when the mobile terminal enters a building.

The present invention is a mobile terminal having a sensor module including a mobile communication module, a short range wireless communication module, an acceleration sensor to achieve the above object; A wireless communication network for relaying mobile communication of the mobile terminal; A location information providing server communicating with the mobile terminal through the wireless communication network and providing location information for the mobile terminal; It is installed in the building entrance to perform the near field communication with the short range wireless communication module of the mobile terminal, and includes a notification module having a unique ID, the location information providing server after the mobile terminal communicates with the notification module Provides a location information providing system, characterized in that for providing the distance and direction information moved within the building.

The acceleration sensor is a three-axis acceleration sensor that can measure the acceleration in the three-axis direction, the sensor module may be characterized in that it further comprises an electronic compass.

The short range wireless communication module may support Bluetooth, Zigbee, or UWB wireless communication.

In another aspect, the present invention, the mobile terminal having a sensor module including an acceleration sensor, the first step of performing short-range wireless communication with the notification module installed in the building entrance; A second step of the mobile terminal acquiring and storing a unique ID of the notification module and driving the sensor module; A third step of requesting location information from the mobile terminal when the location information providing server is requested for location information; And a fourth step of transmitting, by the mobile terminal, the unique ID and the sensor data of the sensor module or the location information of the building calculated from the sensor data to the location information providing server.

In the location information providing method, after the third step, the mobile terminal determines whether the GPS signal is received, and proceeds to the fourth step only when the GPS signal is not received. can do.

According to the present invention, even when the mobile terminal enters the building and does not receive the GPS signal, the mobile terminal can accurately check the location of the inside of the building by using the mobile information.

In addition, the short-range wireless communication module for communication with the mobile terminal need only be installed at the entrance of the building, it does not need to be installed inside the building can be applied much simpler and wider than the conventional method.

Hereinafter, with reference to the drawings will be described in detail a preferred embodiment of the present invention.

1 is a schematic configuration diagram of a positioning system according to an embodiment of the present invention, the first mobile terminal 10 and the second mobile terminal 20, the first mobile terminal 10 and the second mobile terminal 20. It includes a wireless communication network (30), PDSN (40), a location information providing server 60, a notification module (80) installed at the entrance of the building for short-range wireless communication with the mobile terminal for relaying the wireless communication. .

The first mobile terminal 10 and the second mobile terminal 20 may include not only cellular phones, PCS phones, CDMA2000 phones, WCDMA phones, but also electronic devices such as PDAs and HPCs (Handheld PCs) having mobile communication functions.

In particular, each mobile terminal 10, 20 of the present invention includes a GPS module 12, a sensor module 13, a short-range wireless communication module 14, etc., in addition to the mobile communication module 11, as shown in FIG. .

The GPS module 12 is for receiving and processing a GPS signal.

The sensor module 13 is for calculating the movement information of the mobile terminal entering the building, and preferably includes an acceleration sensor and an electronic compass.

The acceleration sensor is for determining the moving distance of the mobile terminal (10, 20). This is because arithmetic integration of acceleration two times can calculate the distance.

The acceleration sensor of the present invention may be a two-axis acceleration sensor that can detect the acceleration in the horizontal direction, that is, the x-axis and y-axis direction, but it is necessary to check the movement distance in the vertical direction inside the high-rise building. In contrast, it is more preferable to use a three-axis acceleration sensor that can sense acceleration in the z-axis direction.

The electronic compass is used to determine how much the mobile terminals 10 and 20 are tilted with the earth's magnetic field. The electronic compass is configured to determine the direction of the mobile terminal by grasping the angle formed with the earth's magnetic lines no matter what state the mobile terminal is placed in. It is preferable to use a three-axis electronic compass to judge.

The short range wireless communication module 14 is for short range wireless communication with the notification module 80 installed in a building entrance. The short-range wireless communication standard in the present invention may be selected from Bluetooth, Zigbee, UWB, but is not limited thereto.

Wireless communication network 30 is IS-95B, IS-95C, CDMA2000 1X, CDMA2000 1X EV-DO, CDMA2000 1X EV-DV, CDMA2000 3X, CDMA2000 1X EV-DO (Rev.A), WCDMA, HSDPA, HSUPA, TD It may include a mobile communication network such as SCDMA or a broadband wireless communication network.

The wireless communication network 30 generally includes a base station transmitter (BTS) 31 connected to a first or second mobile terminal 10 or 20 through a wireless channel, a radio channel allocation and release for the mobile terminal, Base station controller (BSC) 32 which performs functions such as transmission output control of mobile terminal and base station transmitter, inter-cell handoff decision, subscriber / receive call processing, handoff procedure processing, interworking with other network And a Mobile Switching Center (MSC) 33 that performs such functions.

PDSN (Packet Data Serving Node) 40 is a network interlocking device introduced while the data signal and the voice signal are separated from the wireless communication network 30, generally connected to the BSC 32 of the wireless communication network 30 is a wireless communication network The packet data is relayed between the 30 and the external network. This PDSN 40 may optionally be connected to the MSC 33.

The location information providing server 60 generally receives data from the GPS module 12 of each mobile terminal 10 and 20, processes the data into predetermined location information, and transmits the data to the requestor.

However, since the present invention is a method for providing location information in an auxiliary manner when a GPS signal is not received, the location information providing server 60 maps and stores the unique ID of the notification module 80 and the installed building information. (62) shall be included or in conjunction with it.

The location information providing server 60 may receive specific in-building location information from the mobile terminal to be checked and transmit the location information to the requestor's mobile terminal, and the sensing data obtained by the sensor module 13 from each mobile terminal 10 or 20. By receiving the mobile terminal 10, 20 may calculate the distance and direction traveled in the building.

The notification module 80 periodically transmits a predetermined signal and attempts to communicate with an adjacent mobile terminal. In addition, the notification module 80 of the present invention is for confirming that the mobile terminal has entered the building, and does not need to be installed in various places inside the building, and may be installed only at the entrance of the building.

Each notification module 80 is assigned a unique ID so as to identify the installed building, and is set to transmit information on its unique ID during short-range wireless communication with the mobile terminal.

Hereinafter, a method of confirming the position of a mobile terminal according to an embodiment of the present invention will be described with reference to the flowchart of FIG. 3 and FIGS. 1 and 2.

For convenience of explanation, it is assumed that the first mobile terminal 10 is a positioning target terminal and the second mobile terminal 20 is a positioning requester's terminal.

When the first mobile terminal 10 is located outside the building, since the GPS signal can be received, when the confirmation request is received from the location information providing server 60, the first mobile terminal 10 calculates the GPS data or the same. The coordinate data is transmitted to the location information providing server 60.

If the first mobile terminal 10 enters the building where the notification module 80 is installed at the entrance and exit, the notification module 80 periodically transmits a predetermined signal, so that the short range wireless communication of the first mobile terminal 10 is performed. Short-range wireless communication is performed between the module 14 and the notification module 80. (ST11)

In this case, the first mobile terminal 10 acquires and stores unique ID information of the notification module 80 through communication with the notification module 80 and drives the sensor module 13. (ST12)

In addition, the first mobile terminal 10 stores the sensor data included in the sensor module 13, for example, the 3-axis acceleration sensor and the 3-axis electronic compass, from the time point at which short-range wireless communication with the notification module 80 is made. do. (ST13)

In this state, the user of the second mobile terminal 20 accesses the location information providing server 60 through the second mobile terminal 20 or a computer terminal (not shown) to obtain the location information of the first mobile terminal 10. If so, the location information providing server 60 requests the location information to the first mobile terminal (10). (ST14, ST15)

Since the first mobile terminal 10 can always move, the first mobile terminal 10 can first determine whether a GPS signal is currently being received to determine whether the user is located inside the building at the time when the location information providing server 60 receives the location information request. It is desirable to confirm. (ST16)

If a GPS signal is being received, the GPS data is transmitted to the location information providing server 60 because it is outside the building. (ST17)

If the GPS signal is not received, it is in the building and transmits the unique ID of the notification module 80 and the sensing data of the sensor module 13 to the location information providing server 60.

If the first mobile terminal 10 moves frequently, a plurality of unique IDs of the stored notification module 80 may exist. In this case, it is preferable to transmit the latest unique ID. (ST18)

The location information providing server 60 checks the building information in which the first mobile terminal 10 is located by using the unique ID information of the received notification module 80, and uses the sensed data received together in the building. Calculates the moving distance or the moving direction of the first mobile terminal (10).

At this time, the sensing data of the acceleration sensor can be used to calculate the moving distance for each direction, and using the sensing data of the electronic compass can check the trajectory of the moving direction of the first mobile terminal 10.

On the other hand, the first mobile terminal 10 does not transmit the sensing data of the sensor module, but uses the sensed data to determine its own moving distance or direction by itself from the point of short-range wireless communication with the notification module 80. You can also send the result after calculation. (ST19)

Subsequently, the location information providing server 60 transmits information on the identified building name, the location of the building, the location of the terminal in the building, etc. to the second mobile terminal 20 requesting the location information. As the transmission method, various methods such as wireless Internet, short message (SMS) and multimedia message (MMS) may be selected. (ST20)

In the above description of the preferred embodiment of the present invention, but the present invention is not limited to the above-described embodiment can be modified or modified in various forms, such modifications are included in the claims to be described later Including the technical idea of the present invention, of course, it belongs to the scope of the present invention.

1 is a block diagram of a location information providing service system according to an embodiment of the present invention

2 is a block diagram showing the configuration of a mobile terminal

3 is a signal flow diagram illustrating a process of providing location information according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: first mobile terminal 20: second mobile terminal

30: mobile communication network 40: PDSN

60: location information providing server 62: DB

80: notification module

Claims (6)

A mobile terminal having a sensor module including a mobile communication module, a short range wireless communication module, and an acceleration sensor; A wireless communication network for relaying mobile communication of the mobile terminal; A location information providing server communicating with the mobile terminal through the wireless communication network and providing location information for the mobile terminal; A notification module installed at a doorway of a building to perform short range wireless communication with the short range wireless communication module of the mobile terminal and having a unique ID; And the location information providing server provides distance and direction information moved within the building after the mobile terminal communicates with the notification module. The method of claim 1, The acceleration sensor is a position information providing system, characterized in that the three-axis acceleration sensor that can measure the acceleration in the three-axis direction The method of claim 1, The sensor module is a location information providing system further comprises an electronic compass The method of claim 1, The short range wireless communication module is a location information providing system, characterized in that for supporting Bluetooth (Bluetooth), Zigbee (Uigbee) or ultra-wideband (UWB) wireless communication A first step in which a mobile terminal having a sensor module including an acceleration sensor performs short-range wireless communication with a notification module installed at a building entrance and exit; A second step of the mobile terminal acquiring and storing a unique ID of the notification module and driving the sensor module; A third step of requesting location information from the mobile terminal when the location information providing server is requested for location information; A fourth step of transmitting, by the mobile terminal, the unique ID and the sensor data of the sensor module or the location information of the building calculated from the sensor data to the location information providing server; Location information providing method including The method of claim 5, After the third step, the mobile terminal includes the step of determining whether the GPS signal is received, and the location information providing method, characterized in that proceeds to the fourth step only when the GPS signal is not received.
KR1020070128902A 2007-12-12 2007-12-12 Service method and system for providing location information of mobile terminal KR20090061898A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101242973B1 (en) * 2011-06-27 2013-03-12 (주) 세인 Method for determining position of mobile device
KR101308583B1 (en) * 2011-11-18 2013-09-13 한국과학기술연구원 System and method for estimating position of mobile terminal
US8918276B2 (en) 2011-02-09 2014-12-23 Samsung Electronics Co., Ltd. Apparatus and method for integrated positioning
US8995909B2 (en) 2011-11-22 2015-03-31 Electronics And Telecommunications Research Institute Method and apparatus for obtaining and processing location information with near field communication
KR20160082188A (en) * 2014-12-31 2016-07-08 주식회사 아이티원 Child finding system using short-range wireless communication

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8918276B2 (en) 2011-02-09 2014-12-23 Samsung Electronics Co., Ltd. Apparatus and method for integrated positioning
US9541629B2 (en) 2011-02-09 2017-01-10 Samsung Electronics Co., Ltd. Apparatus and method for integrated positioning
KR101242973B1 (en) * 2011-06-27 2013-03-12 (주) 세인 Method for determining position of mobile device
KR101308583B1 (en) * 2011-11-18 2013-09-13 한국과학기술연구원 System and method for estimating position of mobile terminal
US8995909B2 (en) 2011-11-22 2015-03-31 Electronics And Telecommunications Research Institute Method and apparatus for obtaining and processing location information with near field communication
KR20160082188A (en) * 2014-12-31 2016-07-08 주식회사 아이티원 Child finding system using short-range wireless communication

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