KR20100024100A - Mobile-terminal for providing variation of in-out door position and method thereof - Google Patents

Abstract

PURPOSE: A mobile terminal for providing internal/external location change information and a method thereof are provided to offer the internal/external location change information by event information change in real time, thereby offering suitable service to users. CONSTITUTION: An internal/external location decider(120) analyzes a GPS signal of a GPS(Global Positioning System) receiver(110). The interior/exterior location decider decides current location of a portable terminal. If interior/exterior location of the portable terminal is changed, a location change sensor(130) outputs a corresponding event signal, event information includes interior/exterior location change information of the portable terminal. According to the event signal, the location information transmitter(170) transmits the event information to a preset terminal(200) through a communication network.

Description

A mobile terminal for providing indoor and outdoor position variation information and a method thereof.

The present invention relates to a portable terminal for providing indoor and outdoor location change information, and more particularly, to a portable terminal for detecting indoor and outdoor location change using a GPS signal and providing indoor and outdoor location change information according to a change in location. It is about.

The present invention is derived from the research conducted as part of the IT source technology development project of the Ministry of Knowledge Economy and the Ministry of Information and Communication Research and Development. [Task management number: 2006-S-032-03, Task name: Development of intelligent life technology based on personal life log] ].

GPS is a system designed to measure the position of objects on Earth through communication with satellites. GPS can be used to obtain the current position and time.

Recently, location-based services (LBS) are rapidly developing due to the development of mobile terminals and information processing technologies. Location-based services collectively refer to application systems and services that identify the current location of a mobile terminal and utilize the location, and context-aware services collectively refer to systems and services that provide information and services appropriate to the current user's context. Such location-based services can be used in various fields such as transportation, logistics, location tracking, emergency dispatch, and context-aware services can be used in various fields such as smart office and smart home.

In the location-based service and the context-aware service, the current location is basic information. The location information can be largely divided into indoor and outdoor, and the user runs everyday while moving indoors and outdoors. Therefore, if the indoor and outdoor location information can be grasped and the indoor and outdoor location change information can be grasped, information and services suitable for the user can be provided in the location-based service and context-aware service using the information.

Therefore, there is a need for an apparatus and method that can determine indoor and outdoor location changes of a user and provide indoor and outdoor location change information.

The present invention determines the indoor and outdoor location of the user using a GPS signal and detects the indoor and outdoor location changes, by providing information on the indoor and outdoor location changes to the system and services that provide location-based services and context-aware services, location-based services Or, it aims to provide appropriate information and services to users by utilizing them in services and systems for context-aware services.

In addition, another object of the present invention is to provide a portable terminal and a method for providing indoor and outdoor location change information capable of effectively identifying a user's location while minimizing storage and transmission traffic of a communication system.

According to an aspect of the present invention, there is provided a portable terminal including a indoor / outdoor location change information providing device, wherein the indoor / outdoor location change information providing device includes: a GPS receiver for receiving a GPS signal; An indoor / outdoor location determining unit analyzing the GPS signal received through the GPS receiving unit to determine whether the current location of the portable terminal is indoor or outdoor; A position variation detection unit for outputting an event signal corresponding to the indoor / outdoor location determination unit as a result of the determination, wherein the indoor / outdoor location of the portable terminal is changed; And a location information transmitter for transmitting event information including indoor and outdoor location change information of the portable terminal to a preset terminal according to the event signal.

In particular, the position change information is characterized in that the information indicating whether the current position is changed from indoor to outdoor or indoor to outdoor.

The indoor / outdoor location determining unit may determine whether the current location is indoor or outdoor based on whether the GPS signal is received or a reception rate.

The apparatus may further include a location identification information input unit for receiving location identification information from a user to be included in the transmitted event information.

The location information transmitter may transmit the location information by including the current location of the portable terminal in the event information.

On the other hand, the method for providing indoor and outdoor location change information according to the present invention, the step of receiving a GPS signal; Analyzing the GPS signal to determine whether a current location of the portable terminal is indoors or outdoors; Detecting whether the indoor / outdoor location of the portable terminal is changed and outputting an event signal corresponding to the indoor / outdoor location of the portable terminal when the indoor / outdoor location of the portable terminal is changed; And transmitting event information including indoor and outdoor location change information of the portable terminal to a preset terminal according to the event signal.

In particular, the method may further include receiving location identification information from the user and including the location identification information in the event information.

The determining of whether the current location is indoor or outdoor by analyzing the GPS signal may include determining whether the current location is indoor or outdoor based on the reception or reception rate of the GPS signal.

The event information may further include a current location of the portable terminal.

The position change information may be information indicating whether the current position is changed from indoor to outdoor or from indoor to outdoor.

According to the present invention has the following effects.

It analyzes the GPS signal to determine whether the terminal's current location is indoors or outdoors, and if there is a location change, converts indoor and outdoor location change information according to the location change into event information and provides it in real time. In the system and service for using this, it is possible to provide a suitable service to the user.

In addition, in the system for location-based services and context-aware services, it is possible to grasp the user's current location as well as indoor and outdoor location changes, thereby reducing the amount of storage and external transmission traffic of the communication system.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Here, the repeated description, well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention, and detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining the indoor and outdoor position change information providing apparatus 100 provided in a portable terminal according to the present invention in detail.

First, the indoor / outdoor position change information providing apparatus 100 of the present invention may be implemented in a module form and may be provided in a portable terminal, or may be implemented and used as a separate device.

The indoor / outdoor location change information providing apparatus 100 includes a GPS receiver 110, an indoor / outdoor location determiner 120, a location change detector 130, a location information storage 140, a location identification information input unit 150, and a situation analysis. The unit 160 and the location information transmitter 170 are provided.

The GPS receiver 110 receives GPS signals emitted from a plurality of GPS satellites, calculates a difference in arrival speed between the received GPS signals, and calculates a current position (GPS coordinate information). The GPS signal transmitted by the GPS satellites includes a PRN code (Pseudo Random Noise Code) specially designed for each satellite number. That is, since the navigation data is propagated to the GPS receiver 110 through a carrier using code multiple division (CDMA), the GPS receiver 110 can accurately receive the GPS signal transmitted from each satellite. Here, the position measuring method may use a single satellite navigation system or A-GPS method. According to an embodiment of the present invention, the GPS receiver 110 may be implemented and mounted in a module form in the indoor / outdoor position change information providing apparatus 100, or may be externally connected to the interface means of the indoor / outdoor position change information providing apparatus 100. It may be implemented.

The indoor / outdoor location determiner 120 analyzes the GPS signal received through the GPS receiver 110 to determine whether the current location is indoors (in the building or underground) or outdoors. For example, when the GPS signal is normally received, it is determined to be outdoors, and when the GPS signal is not normally received or when the signal reception rate is less than the reference value, it is determined to be indoor. In addition, a person skilled in the art may determine whether the current location is indoors or outdoors through various inferred methods.

The location change detection unit 130 detects the current location determined by the indoor / outdoor location determining unit 120 from indoor to outdoor, or from outdoor to indoor, and outputs an event signal corresponding to the location change.

When the event signal is output from the position change notification unit 130, the location information storage unit 140 stores the current position (GPS coordinate information) together with the indoor / outdoor position change information at the time when the event signal is output. In this case, the indoor and outdoor location change information is information on the indoor and outdoor location change details. On the other hand, since the GPS receiver 110 may not be able to calculate the current position at the time when the event signal is output because it does not receive the GPS signal normally (for example, when the position is changed from outdoor to indoor), In this case, the last position calculated by the GPS receiver 110 is stored as the current position.

The location identification information input unit 150 may include a location information storage unit at a current location stored in the location information storage unit 140, that is, when an event signal is generated, when there is a location change from indoors to outdoors or outdoors to indoors. In order for the user to identify the current location stored at 140, the terminal receives predetermined location identification information (logical address) from the user and maps the current location (GPS coordinate information). In this case, the location identification information received from the user may be identification information for identifying the corresponding location from the user's perspective. For example, with respect to a place having specific location information, location identification information such as 'House of friend Hong Gil-dong' or 'A customer' may be mapped to the place having the location information.

The situation analyzer 160 analyzes the current user's situation by using the user's current location and indoor and outdoor location change information. For example, it analyzes when and where the current position is changed indoors / outdoors.

The location information transmitter 170 may transmit information about the current location of the user including the current location and the indoor / outdoor location change information stored in the location information storage unit 150 through the wired / wireless communication network to the outside (eg, the preset terminal 200). Send it to)).

2 is a flowchart illustrating a method for providing indoor / outdoor position variation information according to an embodiment of the present invention.

First, GPS signals emitted from a plurality of GPS satellites are received through the GPS receiver 110 (S100). The received GPS signal is analyzed to determine whether the indoor / outdoor position change information providing apparatus 100 according to the present invention is indoor or outdoor (S110). Whether the current location is indoor or outdoor may be determined by various methods that can be inferred by those skilled in the art. However, in the exemplary embodiment of the present invention, when the GPS signal is normally received, it is determined that it is outdoors, and the GPS signal is not normally received. Or, if the signal reception rate is less than the reference value, it is determined as indoor.

After determining the current position in step S110, it is determined whether there is a position change (S120). For example, it is determined whether the current location changes from indoors to outdoors or whether the current location changes from outdoors to indoors. When there is a position change, that is, when there is a position change from indoor to outdoor or indoor to outdoor, the position change detection unit 130 detects this and outputs an event signal corresponding thereto (S130).

According to the event signal output in step S130, the location information storage unit 140 stores the current position (GPS coordinate information) and the indoor and outdoor location change information at the time point when the event signal is output (S140). In the embodiment of the present invention, the GPS receiver 110 calculates a difference in arrival speed between GPS signals received from the GPS satellites, calculates a current position (GPS coordinate information), and provides the position information storage 140 to the position information storage unit 140. The storage unit 140 stores this.

Next, the event information is converted into location change information (indoor / outdoor) and current location and indoor and outdoor location change information stored in the location information storage unit 140 (S150). In addition, the location information transmitter 170 transmits the event information converted in operation S150 to a predetermined terminal in real time through a communication network in operation S160. At this time, the location information transmission unit 170 receives and stores the identification address of the terminal for transmitting the event information from the user. Accordingly, the indoor / outdoor location change information providing apparatus 100 according to the present invention can communicate with a preset terminal without passing through the subscriber location information system in the center of the communication system when transmitting event information in step S160 using a communication network. Therefore, the transmission traffic of the communication network can be minimized. In addition, since the user can set the terminal for transmitting the event information directly through the terminal, it is easy to change the terminal for transmitting the event information at the time desired by the user.

Meanwhile, the indoor / outdoor location change information providing apparatus according to the present invention uses predetermined location identification information (logical address) so that a user can identify a current location stored in the location information storage unit 140 at the time when an event signal is generated. It receives input from and maps with the current position (GPS coordinate information). In this case, the location identification information received from the user may be identification information for identifying the corresponding location from the user's perspective. For example, with respect to a place having specific location information, location identification information such as 'house of friend Hong Gil-dong' or 'business partner' may be mapped to the place having the location information.

Due to the configuration as described above, the counterpart receiving the event information transmitted from the user can receive the current location to which the location identification information input by the user is mapped.

For example, a student possessing the indoor / outdoor location change information providing apparatus 100 according to the present invention registers 'Hong Gil-dong's house' at a location of a friend's house where he frequently visits, and receives event information generated by the indoor / outdoor location change. It is assumed that the terminal is set as its mother mobile phone. When the student visits the home of Hong Gil-dong, the indoor / outdoor location change information providing device 100 of the present invention possessed by the student detects the indoor / outdoor location change and event information, that is, event information indicating that the location has been changed from outdoor to indoor. Will be transmitted to the terminal of the mother. At this time, the location identification information registered as 'Hong Gil-dong's house' is transmitted along with the location where the indoor / outdoor location is changed. Therefore, the mother of the student can receive not only the location information on the GPS coordinates but also the location identification information to identify the location when the student enters the friend's house. There is an effect that becomes possible. That is, the mother of the student can not only find out where his child enters the room, but can also easily confirm that the location is the friend's house.

On the other hand, in the past, the storage capacity of the communication system is increased because it is necessary to determine the location of the user through continuous communication between the user terminal and the terminal provided with the location information from the user terminal in real time in order to determine the location information according to the user's location change. In addition, it caused the adverse effect of increasing external transmission traffic.

However, since the indoor / outdoor location change information providing apparatus according to the present invention is applied to a user's portable terminal and transmits the event information including the location change information and the current location to the outside (for example, a predetermined terminal) only when the indoor / outdoor location changes, It is possible to effectively locate the user while minimizing the storage capacity and transmission traffic of the communication system.

Therefore, the present invention is expected to be effectively used in identifying the location information according to the change of the position of the student, as described through the above example.

The present invention can be embodied as computer readable codes on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media may include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage. Also included are those implemented in the form of carrier waves (eg, transmission over the Internet). The computer readable recording medium can also be distributed over network coupled systems so that the computer readable code is stored and executed in a distributed fashion.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a view for explaining the indoor and outdoor position change information providing apparatus 100 provided in a portable terminal according to an embodiment of the present invention in detail.

2 is a flowchart illustrating a method for providing indoor / outdoor position variation information according to an embodiment of the present invention.

Claims (10)

A portable terminal including an indoor / outdoor location change information providing device, The indoor and outdoor location change information providing apparatus, A GPS receiver for receiving a GPS signal; An indoor / outdoor location determining unit analyzing the GPS signal received through the GPS receiving unit to determine whether the current location of the portable terminal is indoor or outdoor; A position variation detection unit for outputting an event signal corresponding to the indoor / outdoor location determination unit as a result of the determination, wherein the indoor / outdoor location of the portable terminal is changed; And And a location information transmitter for transmitting event information including indoor and outdoor location change information of the portable terminal to a predetermined terminal according to the event signal. The method according to claim 1, The position change information, The portable terminal, characterized in that information indicating whether the current location is changed from indoor to outdoor or indoors. The method according to claim 1, The indoor and outdoor position determination unit, And determining whether the current location is indoors or outdoors based on the reception or reception rate of the GPS signal. The method according to claim 1, And a location identification information input unit for receiving location identification information from a user to be included in the event information to be transmitted. The method according to claim 1, The location information transmission unit, And a current position of the portable terminal is included in the event information for transmission. A method of providing indoor and outdoor location change information by a portable terminal including an indoor / outdoor location change information providing device, Receiving a GPS signal; Analyzing the GPS signal to determine whether a current location of the portable terminal is indoors or outdoors; Detecting whether the indoor / outdoor location of the portable terminal is changed and outputting an event signal corresponding to the indoor / outdoor location of the portable terminal when the indoor / outdoor location of the portable terminal is changed; And And transmitting event information including indoor / outdoor location change information of the portable terminal to a predetermined terminal through a communication network according to the event signal. The method according to claim 6, And receiving location identification information from a user and including the location identification information in the event information. The method according to claim 6, Analyzing the GPS signal to determine whether the current location is indoors or outdoors, And determining whether the current location is indoors or outdoors based on the reception or reception rate of the GPS signal. The method according to claim 6, And the event information further includes the current location of the portable terminal. The method according to claim 6, The position change information, Method for providing indoor and outdoor location change information, characterized in that the information indicating whether the current location is changed from indoors to outdoors or indoors.

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