WO2012102525A2

WO2012102525A2 - Method and system for positioning access points

Info

Publication number: WO2012102525A2
Application number: PCT/KR2012/000530
Authority: WO
Inventors: 윤영진; 강재훈; 조지은
Original assignee: (주) 유알아이테크놀러지스; (주) 디아이지커뮤니케이션
Priority date: 2011-01-28
Filing date: 2012-01-20
Publication date: 2012-08-02
Also published as: WO2012102525A3; KR101234414B1; KR20120087471A; WO2012102525A9

Abstract

The present invention aims to provide a method for determining the positioning of private APs for utilizing a plurality of existing private APs. The method for positioning APs inside buildings of the present invention operates through an AP information receiver; a position determining server including an AP position calculation module for calculating AP position information using the AP information received by the AP information receiver; and a DB server for storing the AP information with the position determined, and comprises: a first step for providing the plan of a building to be positioned, and for determining the latitude and the longitude of a base point of the building to be positioned; a second step for determining the latitude and the longitude value of a plurality of positioning points inside the building; a third step for receiving AP information that can be received from the plurality of positioning points; a fourth step for determining from the received AP information the position of the AP having the AP information collected; and a fifth step for storing on the DB the AP information with the position determined.

Description

[Specification.

[Name of invention].

Positioning method and system of access point

[Technical Field]

The present invention relates to a positioning method of an access point (AP), and more specifically, to a location method and system for identifying and storing location information of a private AP in which various location information and terminal information are not recorded in a building. It is about. [Background]

Recently, various location-based services using a mobile terminal of the mobile communication terminal have been provided. For the location-based service, accurate positioning of the portable terminal should be preceded. After the GPS receiver chip is mounted on the portable terminal, the portable terminal is used by using the trajectory information and pseudorange information of a plurality of satellites received from the GPS satellites. Positioning of the most widely used method.

However, in the positioning method using the GPS satellites, the portable terminal should be able to receive signals from the GPS satellites. If the terminal is located indoors, the GPS is required for positioning such as when the GPS satellite signal is blocked by a building. If a signal cannot be received, the location of the terminal cannot be located. On the other hand, the use of the so-called WiFi using the wireless Internet has recently increased, and accordingly, the spread of portable terminals equipped with a WiFi chip that supports WiFi, such as smart phones is increasing rapidly. Accordingly, in order to solve the problem of the positioning method using the GPS satellites, a positioning method and a system using WiFi have recently been proposed.

Specifically, the WiFi chip includes a peripheral AHAccess Point to enable the WiFi-based wireless Internet; Access signal) wirelessly. Therefore, the WiFi chip is wirelessly connected to one or more APs so that the AP's SSID (Service Set Identifier, or AP ID) and Mac (Media Access Control) Address (Mac Address) Can be received. Subsequently, the portable terminal including the WiFi chip provides the received AP information (AP ID and MAC address) to a specific server (location server). Then, since the specific server can know the location information of the AP provided with the information by using the location information of the AP according to the previously stored AP information, it is possible to estimate the location of the portable terminal from the location information of the AP.

By the way, according to the conventional method of determining the terminal location using the AP terminal information (AP ID and MAC address), the specific server (location server) is the AP of the AP in addition to the AP terminal information of the AP involved in the positioning in advance. All location information must be known. However, there are some APs (public APs) in which the AP terminal information and AP location information are recorded and stored in advance by systematically installing them by public institutions or telecommunication companies such as the state, but APs installed by individuals or companies privately ( The private AP) does not store AP terminal information and location information in advance in the positioning server. In addition, even though the AP location information is rounded, the user's needs in the building and the structure of the building can be changed at any time due to various reasons. However, when the AP location is changed, the change is reported or stored. There is no situation.

In other words, it is necessary to use the information of the AP to determine the location of the portable terminal inside the building, but only a few public APs among the APs installed inside the building can participate in the positioning and many private APs There is a disadvantage in that it is difficult to accurately determine the location of the portable terminal in the building because it cannot be involved.

Detailed description of the invention

[Technical work]

Accordingly, an object of the present invention is to provide a positioning system and method that can solve the problems of the system and method for determining the position using only the common public AP. In addition, an object of the present invention is to provide a method for determining and falsifying location information of a private AP in which location information and terminal information are not registered. In addition, the present invention utilizes a plurality of existing installed private APs. Handheld terminal Another object is to provide a method and system for determining position information of a plane. [Technical Solution]

According to an aspect of the present invention, a method for determining a location of an access point (AP) in a building includes: an AP information receiver; A location server including AP location calculation modules capable of calculating AP location information using the AP information received by the AP information receiver; And a B server for storing the determined AP information: a first step of providing a floor plan of a building to be positioned and determining latitude and longitude of a reference point of the building to be positioned; A second step of determining latitude and longitude values of a plurality of location points within the building; A third step of receiving AP information receivable at the plurality of positioning points; Determining a location of the AP from which the AP information is collected from the received AP information; And a fifth step of storing the determined AP information in the DB.

Also, in the first step, the reference point of the building is preferably a vertex of the building.

In addition, the second step may further include layer number information of the location point in addition to the latitude and longitude information of the plurality of location points.

In addition, the AP information received in the third step is preferably the location information of the AP and the terminal information of the AP.

In this case, the terminal information of the AP is preferably AP ED and Mac address of the AP.

In addition, in the fourth step, the location information of the AP from which the AP information is collected may include the plurality of AP information provided from the mobile terminal, which is the target of positioning, the strength of the signal transmitted from the AP, and the actual, actual or virtual ) It is desirable to determine the weighted centroid algorithm using APDB.

In this case, the location information of the AP may be determined using Equations 1 and 2 below. Equation 1:

X _n '= X _n xl / log ₁₀ (distance ratio / 80), Y _n ' = Y _n xl / k) g ₁₀ (distance ratio / 80)

Equation 2:

^ "= (： '+ 쬬 ₂ ' + ... + ^ ') / (sum of distance ratios) ，.

Sum of ratios);

Where n is the serial number of the plurality of positioning points, X is the latitude value of the predetermined location point, Y is the longitude value of the predetermined location point, X "is the latitude value of the AP, Y" is the longitude value of the AP, and distance ratio Is the distance ratio of the AP to be positioned.

Alternatively, the AP and location determination may be determined using Equations 3 and 4 below.

Equation 3:

Equation 4:

Χ _η "= (Χι '+ Χ ₂ ' + ... + Χ _η ') / (sum of signal strength ratios),

Υ _η "= (Υι '+ Υ ₂ ' + ... + Υ _η ') / (sum of signal strength ratios);

Where η is the serial number of the plurality of positioning points, X is the latitude value of the predetermined location point, Υ is the longitude value of the predetermined location point, X "is the latitude value of AΑ, Υ" is the longitude value of ΑΡ, signal strength Is the strength of the signal provided at a given location point in each ΑΡ.

In addition, the method preferably further comprises the step of modifying the determined AH position information if necessary. ^'

In addition, the method preferably further comprises the step of deleting the AF information for at least a part of the AF of the determined position if necessary.

In this case, the deleted ΑΡ information is preferably when the ΑΡ is a mobile ΑΡ or when the ΑΡ is located outside the building.

In addition, the method preferably further comprises the step of verifying the reliability of the location information after determining the location of the ΑΡ.

In this case, the step may be performed by the step of determining the location of the information from the device for receiving information Receiving; Calculating a position of the AP information receiving device from the received AP information; And comparing the calculated position information of the AP information receiving device with actual position information of the AP.

On the other hand, the positioning system of the building internal AP according to the present invention for achieving the above object comprises: data transmission and reception modules for transmitting and receiving arbitrary signals and data with a predetermined external terminal; Location point forming modules for determining a plurality of location points within a building to be positioned; And a positioning server including AP position calculation modules for calculating positions of each of the plurality of APs from the plurality of AP information received from the external terminal, and a building storing internal structure information and latitude and longitude information of the building to be located. Information DB; And a DB server including an AP information DB for storing AP information including location information of the AP determined from the positioning server.

Further, the positioning server, it is ^preferable, further comprising the AP information edit mode for adjusting the AP the information that the position calculation.

In addition, the location server preferably further comprises a reliability verification model for measuring the reliability of the location information of the determined AP.

Advantageous Effects

When using the positioning system and method of the AP according to the present invention, since the location information of all the unregistered AP located inside the building is stored, the mobile terminal provides accurate location information when requesting to provide location information in the building. can do.

In addition, since a large number of APs are used as compared to a system and method for determining a location using a conventional public AP, the position of a portable terminal can be accurately determined as compared to the conventional method.

In addition, when the AP location is changed or the AP is newly established and deleted, the result can be reflected at any time, so that accurate location information can be provided. _. 【Brief Description of Drawings】. .

1 is a diagram showing a schematic configuration of a positioning system of an AP according to a preferred embodiment of the present invention.

FIG. 2 is a diagram illustrating a schematic configuration of the positioning server and the DB server shown in FIG. 1.

3 is a flow diagram schematically showing the main steps of the positioning method according to the preferred embodiment of the present invention.

4 is a diagram illustrating an example of a method for determining a location point according to a preferred embodiment of the present invention.

5 is a diagram illustrating an example of measuring the position of an AP according to a preferred embodiment of the present invention.

FIG. 6 is a diagram illustrating an example of a method of determining a location of an AP according to measured AP information according to the embodiment shown in FIG. 5.

FIG. 7 is a diagram illustrating an example of a method of determining a location of an AP according to measured AP information according to the embodiment shown in FIG. 5.

[Form to carry out invention]

Next, a positioning system and method of a portable terminal according to a preferred embodiment of the present invention will be described with reference to the drawings. On the other hand, the components described below are classified for convenience of description and may be formed by combining a plurality of components into one, or may be configured by separating one component into a plurality.

1 is a diagram showing a schematic configuration of a positioning system of an AP (Access Point) according to a preferred embodiment of the present invention, and FIG. 2 is a positioning server 10 in the positioning system shown in FIG. And a configuration of the DB server 20 in more detail.

As shown in FIG. 1, the positioning system according to the present embodiment includes a positioning server 10 and a DB server, and the positioning server 10 is connected to the AP information receiver 30 to interconnect predetermined signals and data. Can send and receive In addition, as shown in Figure 2, the positioning server 10 is a data transmission and reception module 11 for transmitting and receiving arbitrary signals and data with a predetermined external terminal, forming a location point for determining a plurality of positioning points inside the building to be located Mode 12, AP position calculation modules 13 for calculating the position of each of the plurality of APs from the plurality of AP information received from the external terminal, AP information adjustment modules 14 for adjusting the AP information calculated position ), Reliability verification modules 15 for measuring the reliability of the location information of the determined AP, and a controller 16 for controlling the functions of all components of the positioning server 10 and the DB server 20. do.

Specifically, the data transmission / reception module 11 may instruct the AP information receiver 30 to receive AP information for a specific building or a specific area of a specific building and transmit the received AP information, and the AP information receiver 30 ) May receive the collected AP information. On the other hand, the AP information receiver 30 according to the present embodiment is equipped with a WiFi chip for communicating with the AP can receive various information, such as terminal information and AP signal strength information of the AP from the AP, the received information is The data transmission / reception module 11 of the positioning server 10 is transmitted through a communication means of the wireless Internet.

In this case, the information provided by the AP information receiver 30 to the data transmission / reception modules 11 is preferably an AP ID and a MAC address as terminal information of the AP. It is not limited. In addition, the AP information receiver 30 may provide information on the signal strength of the AP received from the AP to the data transmission / reception modules 11, time and order information of signals transmitted from the plurality of APs to the portable terminal 40, and the information receiver 30. ) And distance information between the AP providing the signal and the location information of the AJP information receiver 30 which is the point where the AP information is provided.

In addition, when the AP information receiver 30 receives signals from a plurality of APs, the AP information receiver 30 transmits all or at least some AP information of the APs providing the signals to the data transmission / reception modules 11. In this case, the AP information receiver 30 does not need to provide information on all APs that receive the signal to data transmission / reception modules, and typically provides only about 10 pieces of AP information on the basis of low signal strength. I can decide exactly, When the substitute terminal receives more than 10 AP information, it is preferable to limit the AP information provided to the data transmission / reception modules 11 to about 10 pieces.

Also, after determining the building to be positioned, the positioning point forming models 12 prepare a floor plan of the building to grasp the structure of the building. In addition, the location point forming modules 12 determine the latitude and longitude of the reference point of the building, and determine the latitude and longitude values of the location point from which the AP information receiver 30 will actually receive the information of the AP. The reference point is a point in which the latitude and longitude of the building are already known through the map information column or can be measured objectively. For example, in the case of a quadrangular building, the reference point information may be vertex information of four vertices of the building. In addition, the location point is determined in consideration of the size of the gun #, the number of AP estimated to be inside the building, and the accuracy of the AP location information required. Once the location point is determined, information about the location point is provided to the AP information receiver 30. 4 is a diagram illustrating an example of determining a location point according to a preferred embodiment of the present invention. In FIG. 4, the positioning point is determined by determining the positioning interval in consideration of the required accuracy of AP location information, and then determining the positioning point in a grid shape according to the corresponding interval. In addition, when the building is a multi-storey building, the determination of the location point may be variously determined for each floor, or may be determined the same for all floors.

In addition, when the AP information receiver 30 transmits the AP information received at the plurality of positioning points determined previously, the AP location calculation module 13 calculates the location of the AP based on the received AP information.

In this case, the AP location computation modules may determine the location of the AP to be positioned using a weighted centroid algorithm using, for example, AP information and a real or virtual APDB. In addition, the weighted center algorithm may determine the location of the AP using the location information of the location point as a variable, and determine the location of the AP by using the location information of the location point and the signal strength information of the AP received by the AP information receiver. You can also decide. '

A positioning method of a portable terminal using location information and a distance ratio of a positioning point among the positioning methods using the weighted amplification algorithm, as shown in FIG. A case where AP information is received at four positioning points (position 1 to position 4) in order to determine an AP position of a building having two AHAP1 to AP5) will be described. First, the position operation modules 13 are provided with the AP information received at each positioning point (position 1 to position 4) and the latitude and longitude values of each positioning point by the AP information receiver 30. Enter the latitude and longitude values of the location point and the distance ratio of the AP to obtain the location.

[Equation 1]

X _n '= X _n xl / log ₁₀ (distance ratio / 80)

Y _n '= Y _n xl / log ₁₀ (distance ratio / 80)

[Equation 2]

^ "= (： '+; ¾' + ... + ： ¾ ') / (sum of distance ratios)

Sum of rain)

Where n is the serial number of the location point, X is the latitude value of the location point, Y is the longitude value of the location point, X '' is the latitude value of the AP, Y '' is the longitude value of the AP, and the distance ratio is the AP The ratio of distances. In addition, the distance ratio of Equation 1 is a value that is arbitrarily input during the calculation, the actual or virtual of each AP in the order received based on the actual or virtual position of the first AP received from the first AP received from the terminal. After calculating the distance of the position, the distance is calculated as a ratio.

FIG. 6 is a diagram illustrating an example of calculating location information of AP 1 in the positioning model illustrated in FIG. 5. As shown in FIG. 6, if you know the location information of the four positioning point four latitude and longitude values of a positioning point, and the distance bieul positioning AP (APl) to each equation ^(1), the input to X 'and Y' A value is obtained, and X 'and Y' are obtained by inputting the values of X 'and Y' into mathematics ^ 2. The X "and Y" obtained here are determined as latitude and longitude values of the API, respectively.

Positioning Method Using Weighted Augmentation Algorithm A method of positioning a portable terminal using location information and signal strength information of an augmentation point will be described with reference to FIG. 5. First, the position calculation modules 13 are provided with the AP information received at each positioning point (position 1 to position 4) and the latitude and longitude values of each positioning point by the AP information receiver 30, Enter the latitude and longitude values of the location points and the signal strength values of the AP to be surveyed.

[Equation 3]

X _n '= X _n xl / log ₁₀ (signal strength / 80)

Y _n '= Y _n xl / log ₁₀ (signal strength / 80)

[Equation 4]

X _n "= (¾ '+ X ₂ ' + ... + X _n ') / (sum of signal strength ratios)

The sum of the group bieul) ^"

Where n is the serial number of the location point, X is the latitude value of the location point, Y is the longitude value of the location point, X '' is the latitude value of the AP, Y "is the longitude value of the AP, and signal strength is among the plurality of APs. Signal strength value transmitted from the AP to the mobile terminal.

FIG. 7 is a diagram illustrating an example of calculating location information of AP 1 using signal strength in the positioning model illustrated in FIG. 5. As shown in FIG. 7, when the position information of the four positioning points is known, the latitude and longitude values of the four positioning points, and the signal strength values of AKAP1) to be measured are inputted into Equation 3, respectively, to calculate X 'and Y' values. Then, X 'and Y' are obtained by inputting the X 'and Y' values into Equation 4. The X "^' and Y" obtained here are determined as the position value of the API.

^■ the other hand, when using the weighted center algorithm, the MAC address of the plurality of AP provided from the AP the information receiver 30, subject to the positioning increased blessed AJP is removed, it is preferred to run the abomination center algorithm. At this time, the removal of the duplicated AP is preferably to remove the far-distance AP by calculating the distance based on the reference AP.

In addition, the AP information adjustment modules 14 adjust in a manner of correcting or deleting the AP position calculated in the position calculation modules 13. For example, after confirming the AP location information, the AP is excessively concentrated in a specific region or the AP is transferred to a specific region. It is desirable to adjust the position artificially when the AP placement is biased. Or, as a result of receiving the AP terminal information and location information, when a specific AP is out of the building, or as a result of matching the AP terminal information and location information as a mobile AP is determined to exist in multiple locations If the same MAC address or AP ID is detected at the location, the AP considers that it is unavailable for location location and deletes all AP information.

In addition, the reliability verification modules 15 measure the degree of reliability of the location information of the AP where the location is determined. As a reliability measurement method, for example, after the AP location information is input, the AP signal is received using the AP information receiver at a specific location where the latitude and longitude information of the building is known. After calculating the position of the AP information receiver using the position information of the corresponding AP stored by the method, and then compares the actual latitude and longitude information to the calculated AP position. Reliability verification can be done by verifying how many locations deviate from a certain radius when verifying the accuracy of the location at any number of locations in a particular building. Or, the reliability verification is, for example, when the actual AP AP information in the building as a result of the public AP that the location information is input in advance, the location information previously inputted by the public AP and determined by the method according to the present embodiment It does not limit the kind and method, such as performed by comparing positional information.

In addition, the DB server 20 stores the AP information including the location information of the AP determined from the location information server 21 and the building information DB 21 for storing the internal structure information and latitude and longitude information of the building to be located It consists of an information DB 22. Among them, the internal structure information of the building is not limited to the type of the internal structure of the building and the floor plan, which indicates the internal structure commonly used. In addition, the latitude and longitude information of the building basically includes latitude and longitude information of each vertex of the building appearance, and may further include latitude and longitude information of other main points.

In addition, the AP information includes all information of the AP measured by the above-described method, for example, terminal information such as ID and MAC address of a specific AP, and latitude and longitude of the AP. Also includes information. Or, if some of the public AP in advance of the terminal information and the ^ location information that is rounded all such information can be included in the AP information DB (22). ^ Next, the positioning method of the AP (access point) according to the present embodiment will be described below with reference to FIG. For reference, the same components as those described in FIGS. 1 and 2 use the same reference numerals, and a detailed description thereof will be omitted.

According to the method of positioning the AP according to the preferred embodiment of the present invention, first, the positioning point forming unit 12 determines a building to be positioned, and then prepares a floor plan of the building to grasp the structure of the building, and the building Determine the latitude and longitude of the reference point of (S101). In this case, the reference point of the building is a point where the latitude and longitude of the building are known or objectively measured through map information or the like. For example, in the case of a four-sided building, it is preferable that the building vertex information is four vertices.

Next, the location point forming unit 12 determines a plurality of location points within the building to receive AP information from the AP, and determines latitude and longitude values of the location points (S102). The location point is determined in consideration of the size of the building, the number of APs estimated to be inside the building, and the accuracy of the required AP location information. Once the location point is considered, the information about the determined location point is provided to the AP information receiver 30.

Next, the data transmission / reception module 11 transmits an AP information collection command for a specific building to the AP information receiver 30 (S103). The AP information receiving command includes location information of a building to measure AP information, cross-sectional information of a building, and location information to receive AP information. AP information receiver 30 according to the present embodiment is equipped with a WiFi chip for communicating with the AP can receive various information of the AP from the AP, the received information is determined via the communication means of the wireless Internet The data will be transmitted to the transmission and reception modules 11 of the server 10.

On the other hand, when the AP information receiving command is provided, the AP information receiver 30 moves to the corresponding location point. For this purpose, for example, the location information is sent to the AP information collector 30. Pointed building floor plan may be provided to sequentially move to the corresponding marking point according to the floor plan, or provide latitude and longitude values of the location point to the AP information collector 30 and then position surveying such as a gyro. The equipment may be used to cause the AP information collector 30 to move to the location point, and all other methods are available. ^"Next, the AP information receiver 30 collects the AP information from the positioning point of the plurality (S104). The received AP information is preferably AP ID and MAC address information as the terminal information of the AP. However, if the AP can be distinguished from other APs, the type is not assigned. In addition, the AP information receiver 30 may receive signal strength information of the AP received from the AP and / or distance information between the AP information receiver 30 and the AP that provided the signal, and the AP information receiver (AP information receiver) which is a point where the AP information is received. The location information of 30) is further provided.

Next, when the AP information receiver 30 transmits the AP information received at the plurality of positioning points determined above, the AP location calculation module 13 calculates the location of the AP based on the received AP information (S105). . For example, the AP location computation modules may determine the location of the AP to be positioned using a weighted centroid algorithm using AP information and a real or virtual APDB. In addition, the weighted center algorithm may determine the location of the AP by using the location information of the location point as a variable, or determine the location of the AP by using the location information of the location point and the signal strength information of the AP received by the AP information receiver. It may be.

Next, the AP information adjustment modules 14 adjust in a manner of correcting or deleting the AP position calculated in the position calculation modules 13 (S106). For example, if all AP location information is checked and AJP is excessively concentrated in a specific area or AP is not present in a specific area, it is desirable to adjust the location artificially. Or, as a result of receiving the AP terminal information and location information, when a specific AP is outside the building, or as a result of matching the AP terminal information and location information as a mobile AP is confirmed to exist in multiple locations as a plurality of locations If the same MAC address or AP ID is detected in the AP, the AP considers that it is unavailable for positioning and deletes all AP information.

Next, the reliability verification module 15 measures the reliability of the location information of the AP where the location is determined (S107). As a reliability measurement method, for example, after inputting the AP location information, at a specific location where the latitude and longitude information of the building is known, the AP signal is received using the AP information receiver. After calculating the position of the AP information receiver using the position information of the corresponding AP stored by the method, it is made to compare the actual latitude and longitude information to the calculated AP position. Reliability verification can be achieved by verifying how many locations deviate from a certain radius when verifying the accuracy of the location at any number of locations in a particular building. Alternatively, the reliability test is for example, actually carried out by comparing the position information with the positioning position information input in advance of the common AP ^case, in the interior of the AP results confirm the terminal information of the position information is pre-common AP building It does not limit such kind and method

Next, when the location information of the AP for a specific building is determined by the above method, the AP ID of the determined AP, the terminal information of the MAC address, and the latitude and longitude values of the AP are stored in the DB server ( 20) (S108). In the above, the location information determination system and method of the portable terminal according to the preferred embodiment of the present invention have been described in detail. However, one of ordinary skill in the art to which the present invention pertains will understand that various modifications and variations to the configuration are possible. Therefore, the scope of the present invention is limited only by the claims which will be described later. ^'

Claims

[Claims]

[Claim 1]

An access point (AP) information receiver; A positioning server including AP position calculation modules capable of calculating AP position information using the AP information received by the AP information receiver, and driven by a DB server storing the determined AP information;

Providing a floor plan of the building to be positioned and determining latitude and longitude of a reference point of the building to be positioned; ^'

A second step of determining latitude and longitude values of a plurality of location points within the building;

A third step of receiving AP information receivable at the plurality of location points; Determining the location of the AP from which the AP information is collected from the received AP information;

Step 4;

A fifth step of storing the determined AP information in a DB;

Positioning method of the AP inside the building, characterized in that it comprises a.

[Claim ² ]

The method of claim 1, wherein the reference point of the building of the first step is a vertex of the building. ^'

[Claim ^3]

The method of claim 1, wherein the second step further includes the number of floors of the location point in addition to the latitude and longitude information of the plurality of location points.

[Claim 4]

The method of claim 1, wherein the AP information received in the third step is location information of the AP and terminal information of the AP.

[Claim 5]

The method according to claim 4, wherein the terminal information of the AP AP ID and MAC address of the AP (Mac Address) positioning method of the AP inside the building.

[Claim 6]

The method of claim 1, wherein the location information of the AP in which the AP information is collected in the fourth step, the position calculation modules are a plurality of AP information provided from the portable terminal to be determined and the strength and actual or actual of the signal transmitted from the AP Or a weighted centroid algorithm using a virtual APDB.

[Claim 7]

. The method of claim 6, wherein the location information of the AP is determined using Equation 1 and Equation 2 below.

Equation 1:

X _n '= X _n xl / log ₁₀ (distance ratio / 80) ，

Y _n '= Y _n xl / log ₁₀ (distance ratio / 80)

Equation 2:

Χ _η "= (Χι '+ Χ ₂ ' + ... + Χ _η ') / (sum of distance ratios)

Υ / = (Υι '+ Υ ₂ ' + .. + Υ _η ') / (sum of distance.ratio);

Where η is the serial number of the location point, X is the latitude value of the location point, Υ is the longitude value of the location point, X '' is the latitude value of ΑΡ, Y '' is the longitude value of ΑΡ, and the distance ratio is ΑΡ Value for distance ratio.

[Claim 8]

The method according to claim 6, wherein the positioning of the ΑΡ is determined using Equation 3 and Equation 4 below.

Equation 3:

X _n '= X _n xl / log ₁₀ (signal strength / 80)

Equation 4:

Χ _π "= (¾ '+ Χ ₂ ' + .. · + Χ _η ') / (sum of signal strength ratios) "= (^ '+' + .. value ') / (sum of signal strength ratios);

Where n is the serial number of the location point, X is the latitude value of the location point, Y is the longitude value of the location point, X "is the latitude value of the AP, Y" is the longitude value of the AP, and signal strength is a plurality of AP enhancements. Signal strength value transmitted from the AP to the portable terminal.

[Claim 9]

10. The method of claim 1, wherein the method further comprises modifying the determined AP location information as needed.

[Claim 10]

9. The method of any one of claims 1 to 8, further comprising deleting AP information for at least a portion of the AP evidence for which the location has been determined if necessary.

[Claim 11]

The method of claim 10, wherein the deleted AP information is a case where the AP is a mobile AP or when the AP is located outside the building.

[Claim 12]

The method of any one of claims 1 to 8, further comprising verifying the reliability of the location information after determining the location of the AP.

[Claim 13]

The method of claim 12, wherein the step of receiving the AP information determined from the AP information receiving device; Calculating a position of the AP information receiving device from the received AP information; And comparing the calculated position information of the AP information receiving device with actual position information of the AP.

[Claim 14] Data transmission / reception modules for transmitting and receiving arbitrary signals and data with a predetermined external terminal;

Positioning point forming models for determining a plurality of positioning points within a building to be positioned; And ᅳ

A positioning server including AP position calculation modules for calculating positions of each of the plurality of APs from the plurality of AP information received from the external terminal;

A building information DB for storing internal structure information and latitude and longitude information of the building to be positioned; And

DB server including the AP information DB for storing the AP information including the location information of the AP determined from the positioning server

Positioning system of the AP inside the building, characterized in that it comprises a.

[Claim 15]

15. The system of claim 14, wherein the positioning server further comprises AP information adjustment modules for adjusting the AP information for which the position has been calculated.

[Claim 16]

The system of claim 14 or 15, wherein the positioning server further comprises reliability verification modules for measuring the reliability of the location information of the AP in which the location is determined.