KR20120089934A - Mobile location tracking system and service providing method of mobile location tracking system - Google Patents

Mobile location tracking system and service providing method of mobile location tracking system Download PDF

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KR20120089934A
KR20120089934A KR1020100136799A KR20100136799A KR20120089934A KR 20120089934 A KR20120089934 A KR 20120089934A KR 1020100136799 A KR1020100136799 A KR 1020100136799A KR 20100136799 A KR20100136799 A KR 20100136799A KR 20120089934 A KR20120089934 A KR 20120089934A
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South Korea
Prior art keywords
reference point
location
group
virtual reference
terminal
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KR1020100136799A
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Korean (ko)
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KR101215269B1 (en
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유연희
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(주)휴빌론
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0294—Trajectory determination or predictive filtering, e.g. target tracking or Kalman filtering
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Abstract

PURPOSE: A mobile position tracking system and a method for providing a service thereof are provided to accurately determine and establish a principal residence region of a user using a network position measurement algorithm. CONSTITUTION: A base station(20) transmits a location coordinate of a mobile communications terminal(10). A location based server(50) calculates location information of the mobile communications terminal through the location coordinate transmitted from the base station or location coordinate created by a network position measurement algorithm. The location-based server establishes a reference point based on the location information accumulated for the prescribed period. The location-based server establishes a designated radius of the reference point as a principal residence region.

Description

MOBILE LOCATION TRACKING SYSTEM AND SERVICE PROVIDING METHOD OF MOBILE LOCATION TRACKING SYSTEM}

The present invention relates to a mobile location tracking system and a service providing method of a mobile location tracking system. More specifically, the present invention relates to various types of location information of a user, such as a location information of a user collected based on a cell or a network positioning algorithm. The present invention relates to a mobile location tracking system and a service providing method of a mobile location tracking system that can accurately set a user's main residence area through a method.

Recently, as mobile communication terminals are widely used, mobile communication services provided by respective mobile communication service providers are also diversifying. Such mobile communication services are being expanded to wireless internet service, location notification service, etc. following voice call, video call, text message and voice message transmission.

Among these, the location notification service is a service that notifies the current location of the mobile communication terminal. When the user uses the mobile communication service using the mobile communication network, the corresponding signal is transmitted to the base station closest to the terminal to communicate. Is provided.

For example, when the base station checks the location of the user using the installed position coordinates and if the user has arbitrarily or intentionally departed from the set area, the area departure is notified to the user's terminal or the service requester's terminal requesting the location notification service. do.

However, in the conventional location notification service, the base station near the mobile communication terminal is detected by the base station to detect the location of the base station, and thus the current location of the terminal may not be accurately reported due to the radius and the error range of the general base station. There is a problem that can be.

In addition, the conventional location notification service checks whether or not the user has left the set area when the location notification cycle (for example, 1 hour to 3 hours), so that the user has left the set area in real time? There is a problem that can not tell whether or not.

In addition, there is a problem that positioning the location of the terminal every time in order to detect and notify the movement of the terminal causes a load on the system.

The present invention is to solve the above-mentioned problems, mobile location tracking system and mobile location tracking system that can accurately set the user's main residential area through the location information using the user's location information or network positioning algorithm collected based on the base station It is to provide a service providing method.

In addition, the present invention is to solve the above-described problems, to provide a mobile location tracking system and a service providing method of a mobile location tracking system that can obtain accurate location information than a general base station even in the situation where GPS is impossible.

In addition, the present invention is to solve the above-described problems, and since the correct primary residential area is set, the mobile location tracking system and the service providing method of the mobile location tracking system that can reliably notify the departure of the main residential area To provide.

According to the present invention, there is provided a mobile location tracking system comprising: a mobile communication terminal; A base station transmitting position coordinates of the mobile communication terminal; The position information of the mobile communication terminal is calculated from the position coordinates received from the base station or the network positioning algorithm, and the reference point is set based on the position information accumulated for a predetermined period. It is achieved by a mobile location tracking system comprising a location-based server that sets the radius to the county, the primary residence.

The location-based server sets any one of the calculated position information as a virtual reference point, calculates a weight according to the position of the peripheral coordinates existing within a predetermined radius of the virtual reference point and the time zone where the peripheral coordinates occur, and calculates the maximum weight. It is preferable to set the virtual reference point to have as the reference point.

When the virtual reference point having the maximum weight is two or more, the location-based server may set at least one of the virtual reference points as a reference point according to the distance between the plurality of virtual reference points.

The location-based server sets each of a plurality of virtual reference points as a reference point when the distance between the plurality of virtual reference points exceeds the set radius of the peripheral coordinates, and sets a plurality of distances when the distance between the plurality of virtual reference points is less than or equal to the set radius of the peripheral coordinates. It is preferable to set the midpoint between the virtual reference point of as a reference point.

The location-based server may set the outermost line of the peripheral coordinates within a predetermined radius of the reference point as a group.

The location-based server determines whether the mobile communication terminal is out of the group, and if the group is more than a predetermined distance away from the group it is preferable to notify the departure of the group to the terminal of the user or service requester.

When the mobile communication terminal is separated from the group within a predetermined distance, the location-based server may leave the group to the user's terminal or service requester's terminal if the continuous position coordinate is farther away from the group than the previous position coordinate. Can be notified.

In addition, the above object, according to the present invention, a method for providing a service of a mobile location tracking system, comprising: receiving the position coordinates of the mobile communication terminal; Generating position coordinates of the mobile communication terminal through a network positioning algorithm; Calculating location information of the mobile communication terminal using the location coordinates; Setting a reference point based on the position information accumulated for a predetermined period; It can be achieved by a service providing method of a mobile location tracking system comprising the step of setting a predetermined radius of the reference point to the group of the primary residence.

The setting of the reference point may include setting any one of the calculated position information as a virtual reference point, and calculating a weight according to a position of a peripheral coordinate existing within a predetermined radius of the virtual reference point and a time zone in which the peripheral coordinate occurs. Making a step; Preferably, the virtual reference point having the maximum weight is set as the reference point.

In the setting of the virtual reference point having the maximum weight as the reference point, when the virtual reference point having the maximum weight is 2 or more, at least one of the virtual reference points may be set as a reference point according to the distance between the plurality of virtual reference points.

The setting of the virtual reference point having the maximum weight as the reference point may include setting each of the plurality of virtual reference points as a reference point when the distance between the plurality of virtual reference points exceeds a set radius of the peripheral coordinates, and the distance between the plurality of virtual reference points. If is less than the set radius of the peripheral coordinates it is preferable to set the intermediate point between the plurality of virtual reference point as a reference point.

In the setting of the group, the outermost line of the peripheral coordinates within a predetermined radius of the reference point may be set as a group.

After setting the group, determining whether the mobile communication terminal leaves the group; Determining whether a predetermined distance deviates from the group; As a result of the determination, if the deviation is more than a predetermined distance may include the step of notifying the departure of the group to the terminal of the user or the terminal of the service requester.

As a result of judging whether the group has deviated by a predetermined distance or more, if the deviated within a predetermined distance, if the consecutive position coordinates deviate farther from the group than the previous position coordinates, the group is separated from the user's terminal or service requester's terminal. It is preferable to include the step of notifying.

Accordingly, the present invention provides a mobile location tracking system and a service providing method of a mobile location tracking system that can accurately set a user's main residence area through a user's location information or network location algorithm collected on a base station basis.

In addition, by using not only base station-based location information but also network positioning algorithm that periodically generates location values, more accurate location information can be obtained than base station-based location information. Provided are a mobile location tracking system and a service providing method of a mobile location tracking system, which can reliably notify whether or not there is a deviation.

In addition, by using a network positioning algorithm that generates positioning values periodically, it is possible to immediately notify whether or not it has left the main residential area, and the mobile positioning system and mobile positioning system that can reduce the traffic for positioning. A service providing method is provided.

1 is a control block diagram of a mobile location tracking system according to an embodiment of the present invention,
2 is a diagram illustrating a process of setting a reference point when there are a plurality of virtual reference points of a mobile location tracking system according to an embodiment of the present invention.
3 is a view showing a process of setting a group of mobile location tracking system according to an embodiment of the present invention,
4 is a flowchart illustrating a control process of a mobile location tracking system according to an embodiment of the present invention.

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

1 is a control block diagram of a mobile location tracking system according to an embodiment of the present invention. As shown in FIG. 1, the mobile location tracking system according to the present invention includes a mobile communication terminal 10, a base station 20, a base station controller 30, a switch 40, and a location-based server 50. It includes.

The mobile communication terminal 10 is a terminal 10 capable of voice call and data communication with a counterpart through a mobile communication network. The mobile communication terminal 10 includes a personal digital assistant (PDA), a cellular phone, a personal communication service (PCS) phone, a wideband-CDMA (W-CDMA) phone, a CDMA-2000 phone, a digital multimedia broadcasting (DMB) phone, and the like. do.

The base station 20 is arranged in units of cells, and transmits a call request generated from the mobile communication terminal 10 to the mobile switching center 40. When the terminal 10 enters a cell area under its control, the base station 20 processes the location registration for identifying the location coordinates of the terminal 10 and transmits the detected location coordinates to the location-based server 50.

In addition, the base station 20 transmits a message indicating the departure of the group to the user terminal 10 or the service requester terminal 10 when leaving the group of the main residence area under the control of the location-based server 50. .

The base station controller 30 performs various functions required for radio call processing such as handoff while controlling and managing the plurality of base stations 20. In addition, the base station controller 30 transmits subscriber information of the location registered terminal 10 to the switch 40.

The exchange 40 has a control function for allowing the base station 20 to operate efficiently and an interworking function with the switch 40 of the public telephone network. In addition, when the switch 40 performs location registration of the terminal 10 through the base station 20, the switch 40 temporarily stores subscriber information of the terminal 10 in a visitor location register (VLR) in the switch 40. Afterwards, a location registration request of the terminal 10 is requested to a home location register (HLR) (not shown).

Here, the home location register (not shown) is a database that stores a service profile about subscriber information of the user of the terminal 10, and includes a subscriber's telephone number and a mobile identification number of the terminal 10 (Mobile Identification Number: MIN). ), The terminal 10 has an electronic serial number (ESN) and information on the type of service. The home location register performs a function of storing subscriber information including information of the base station 20 where the terminal 10 is located and the exchange 40. The exchanger 40 is composed of a control unit, a call path unit and a peripheral device, and also has a charging data collection function for the terminal 10.

The location-based server 50 accumulates the location coordinates received from the base station 20 for a predetermined period of time (for example, at least two weeks to three months) of the user, and sets a group as a main residence region based on the location coordinates. When the terminal 10 leaves the group, the terminal 10 notifies the user or service requester terminal 10 of the group. Here, the location-based server 50 receives and accumulates location coordinates from at least one base station 20 around the terminal 10.

When the location-based server 50 analyzes the accumulated data and sets the group of the main residence area, the more data, the more accurate location information of the terminal 10 can be obtained. Therefore, the location information of the terminal 10 can be obtained through various methods. Get

First, the location-based server 50 receives the position coordinates from the base station 20 to measure the current position of the terminal to obtain the location information.

Second, the location-based server 50 is a terminal through a network location algorithm (Network Location System: NWLS) that can obtain the location information data periodically (where the period can be selected in 5 minutes, 10 minutes, 20 minutes, etc.) Receive the position coordinates of (10) and survey the position information. The network positioning algorithm is to measure the current position of the terminal 10 by using the location information of the multi-base station, and calculates the position value between the base stations 20 by using the overlapped base station 20 information to determine the optimized intermediate point. This is a method for calculating the position of the terminal 10.

The network positioning algorithm is based on the information obtained by analyzing MR (Measurement Report), which is the call quality information output from the wireless network, in accordance with the control conditions of the mobile communication network. The position of the terminal 10 is measured.

The main algorithm of the network positioning algorithm is a method of measuring position using azimuth information. The method using the azimuth information is a round trip time (RTT) of the call quality information of the terminal 10 receiving one or more base station 20 services as the round trip propagation time between the base station 20 and the terminal 10. By using the information), a position separated by RTT in the azimuth direction of the base station signal PN from the base station 20 coordinates is calculated as the position of the terminal 10. When receiving two base station signals from the same base station 20, the position of the terminal 10 is calculated as a position separated by RTT in the direction in which the azimuth angles of the two base station signals cross each other.

The sub-algorithm of the network positioning algorithm is a time of arrival (TOA) location measurement method using the RTT information of the MR of the terminal 10 receiving three or more different base stations 20, and a time different of arrival (TDOA) location measurement. That's the way.

 The TOA position measuring method forms a circle having a radius of the RTT of each base station signal from each of three base station 20 coordinates, and calculates a point where the three circles formed intersect as the position of the terminal 10. The TDOA position measuring method measures an RTT difference with each active base station 20 based on a master base station 20, and then, the two base stations 20 having a constant difference value, After forming hyperbolic curves as focal points, the point where the two hyperbolas formed from the three base stations 20 intersect is calculated as the position of the terminal 10.

The location-based server 50 performs an optimal position measurement by appropriately using the main algorithm and sub algorithm of the network positioning algorithm.

Third, if the terminal 10 supports the GPS, the location-based server 50 calculates the location information of the terminal 10 using the GPS positioning coordinates.

The location-based server 50 sets a group that is a main residence area of the terminal 10 based on the location information of the terminal 10 accumulated in the above-described method for a predetermined period of time. Hereinafter, the process of setting the group by the location-based server 50 will be described in detail.

First, a reference point for setting a group is calculated. When the location-based server 50 refers to any one of the coordinates of the accumulated position information as a virtual reference point and coordinates existing at a short distance (for example, a radius of 1 Km) of the virtual reference point as the peripheral coordinates, the position and the peripheral coordinates of the peripheral coordinates The weight is calculated based on the time zone in which is generated. A virtual reference point having the highest weight among several virtual reference points is set as a reference point.

The weight is given a weight of 1.5 if the peripheral coordinates match the coordinates of the virtual reference point, and a weight of 1 if the coordinates do not match. In this case, when the peripheral coordinates are in consecutive time zones (eg, within 1 hour), a weight of 80% is given. That is, the peripheral coordinates with matching coordinates are weighted with 1.2, which is 80% of 1.5, and the peripheral coordinates with mismatched coordinates are weighted with 0.8, which is 80% of 1. This is because, in the case of coordinates having a continuous time zone, it is difficult to determine the group as a behavior radius or a pattern compared to the coordinates of the discontinuous time zone.

Table 1 is a table for calculating weights based on the virtual reference point of the mobile location tracking system according to an embodiment of the present invention and the time zone in which the peripheral coordinates occurred.

Of virtual control point
location Number of neighboring coordinates Continuous time zone
(Number of data) weight Same Near One (x1, y1) 5 7 Match 3 13.6 2 (x2, y2) 5 7 Match 3 13.6 3 (x3, y3) 5 3 Match 2, close 1 9.7 4 (x4, y4) 5 3 Match 2, close 1 9.7 5 (x5, y5) 5 3 Match 2, close 1 9.7 6 (x6, y6) 2 5 - 8 7 (x7, y7) 2 5 - 8

Referring to Table 1, five peripheral coordinates coincident with the coordinates of the first virtual reference point among the peripheral coordinates of the first virtual reference point (x1, y1) are seven, and the number of peripheral coordinates located at a short distance without matching the coordinates is 7 Dog. Of these, the neighboring coordinates in consecutive time zones are three out of five peripheral coordinates that coincide with the first virtual reference point.

Thus, two out of five matching peripheral coordinates are weighted by 1.5, the remaining three out of five matching peripheral coordinates are weighted by 1.2, which is 80% of 1.5, and seven non-matching peripheral coordinates are Given a weight of 1, the weight of the first virtual reference point is 13.6 (2 * 1.5 + 3 * 1.2 + 7 * 1 = 13.6).

In the case of the second virtual reference point (x2, y2), the number of peripheral coordinates that match the coordinates of the second virtual reference point among the peripheral coordinates is five, the number of peripheral coordinates in the near distance is 7. Of these, the peripheral coordinates in a continuous time zone with the second virtual reference point are three out of five matching peripheral coordinates. Accordingly, the weight of the second virtual reference point is 2 * 1.5 + 3 * 1.2 + 7 * 1 = 13.6.

In the case of the third virtual reference point (x3, y3), the number of peripheral coordinates that match the coordinates of the third virtual reference point among the peripheral coordinates is five, the number of peripheral coordinates in the near distance is three. Among these, the peripheral coordinates in the continuous time zone with the third virtual reference point are two out of five matching peripheral coordinates, and one of three peripheral coordinates in a short distance. Therefore, the weight of the third virtual reference point is 3 * 1.5 + 2 * 1.2 + 2 * 1 + 1 * 0.8 = 9.7.

In the same process, the weight of the fourth virtual reference point (x4, y4) and the fifth virtual reference point (x5, y5) is 3 * 1.5 + 2 * 1.2 + 2 * 1 + 1 * 0.8 = 9.7, the sixth virtual The reference points x6 and y6 and the seventh virtual reference points x7 and y7 have a weight of 2 * 1.5 + 5 * 1 = 8.

The location-based server 50 sets the virtual reference point having the highest weight as the reference point. Here, the virtual reference points having the highest weights are the first virtual reference points (x1, y1) and the second virtual reference points (x2, y2).

2 or more virtual reference points having the highest weight are set, and the location-based server 50 sets the quarter reference points according to the distance between the virtual machine points.

2 is a diagram illustrating a process of setting a reference point when a plurality of virtual reference points are provided in the mobile location tracking system according to an exemplary embodiment of the present invention. Referring to FIG. 2, when the distance between the virtual reference points is less than or equal to A Km (peripheral coordinate set radius), an intermediate point between a plurality of virtual reference points is obtained, and the intermediate point is set as a reference point. When the distance between the virtual reference points exceeds A Km (peripheral coordinate setting radius), both of them are set as reference points.

After setting the reference point, the location-based server 50 sets the radius B km of the set reference point as a group. There are two ways to set up a group.

3 is a view showing a process of setting a group in a mobile location tracking system according to an embodiment of the present invention. 3-1 illustrates a method of setting a radius B km (for example, 2 km) of a reference point as a group as a first method of setting a group.

The first method is that if the actual group is not elliptical, it can enter the range of the group even though it is not the radius of action, but by setting the radius of the group, a certain distance difference or the radius of action is tolerated.

3-2 illustrates a method of setting the outermost line of the peripheral coordinates within the radius B km (for example, 2 km) of the reference point as a second method of setting a group. The second method uses the 'Graham Scan to implement Convex Hull' method to define the boundary and set it as a group.

The second method is a more complex algorithm than the first method, but a lot of tasks can be put in, but it has the advantage of being more faithful to the actual behavior radius by setting the group with the correct boundary.

On the other hand, in setting a group for one user, n areas showing a dense distribution for each user are set as a group. In this case, the number of groups per user may be set to 5 or less to prevent the generation of indiscriminate groups. And, by continuously applying the position coordinates to the setting requirements, the number or location of the group for a user can be changed, and may vary depending on the metropolitan area or less.

The location-based server 50 calculates the distance when it is determined to be out of the set group, and notifies the terminal 10 of the user or the terminal of the service requester 10 when there is departure information that can be determined to be immediate or another movement. do. The notification method may be informed by a short message service (SMS) or a multi-media message service (MMS) based on a map.

At this time, once the location notification coordinates may not be re-notified for a certain period (for example, one day), the departure notification can be notified to a plurality of registered users at the same time, the user can pause or reject the departure notification Of course.

For example, when it is determined that the current position coordinates of the terminal 10 positioned by the base station 20 or the network positioning algorithm are slightly deviated from the boundary of the group, the location-based server 50 may then determine that the consecutive position coordinates are the previous position coordinates. Determine if you are farther apart. If the terminal 10 is further away from the group, the terminal 10 of the user or the terminal 10 of the service requester is notified.

Or, if it is determined that the position coordinates of the terminal 10 positioned by the base station 20 or the network positioning algorithm are significantly deviated from the boundary of the group, the location-based server 50 may determine the user terminal 10 or the service requester. Notify the terminal 10 immediately.

4 is a flowchart illustrating a control process of a mobile location tracking system according to an embodiment of the present invention.

As shown in FIG. 4, the location-based server 50 accumulates location information of a user who uses the mobile communication terminal 10 for a predetermined period (for example, two weeks to three months) (S1). Here, the location-based server 50 is applied to the position coordinates or network positioning algorithm received from the base station 20 to obtain the position coordinates of the terminal 10.

Then, any one of the accumulated position information is set as a virtual reference point (S3).

Then, the weight of the virtual reference point is calculated based on the position of the peripheral coordinate present in the virtual reference point radius Akm (for example, 1km) and the time zone in which the peripheral coordinate has occurred (S5).

The virtual reference point having the largest weight is set as the reference point, and the reference point radius Bkm (eg, 2km) is set as a group (S7). Here, when there are two or more virtual reference points having the largest weight, when the distance between the virtual reference points is Akm or less, the intermediate point between the virtual reference points is set as the reference point. If the distance between the virtual reference points exceeds Akm, all of the virtual reference points are set as reference points.

When setting the group, the reference point radius Bkm is set as a group, or the outermost line of the peripheral coordinates located within the reference point radius Bkm is set as a group.

Then, the position of the terminal 10 is checked to determine whether the terminal 10 leaves the group (S9).

As a result of the determination in step S9, if the terminal 10 deviates by more than a predetermined distance from the group (S11), the terminal 10 notifies the terminal of the user or the terminal of the service requester of the group departure (S15).

As a result of the determination in step S11, when the terminal 10 does not deviate from the group by more than a predetermined distance, it is determined whether the continuous position coordinates deviate more than the previous position coordinates (S13).

As a result of the determination in step S13, when the current position coordinate is farther away from the group than the previous position coordinate, the terminal 10 notifies the terminal of the user or the service requester terminal (S15).

Through this, it is possible to accurately set the user's main residence area by using the location information of the user collected based on the base station 20 or a network positioning algorithm that periodically measures the location of the terminal 10.

In addition, by using not only the base station 20-based location information but also a network positioning algorithm in which positioning values are periodically generated, much more accurate location information can be obtained than the base station 20-based location information. As such, it is possible to reliably notify the departure of the main residential area.

In addition, it is possible to reduce the traffic for positioning by adding a network positioning algorithm periodically positioned in the base station 20 based on the input form and the GPS positioning method.

Those skilled in the art to which the present invention pertains are to be understood in all respects as illustrative and not restrictive. The scope of the invention is indicated by the following claims rather than the above description, and in particular, all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the invention. do.

10: mobile communication terminal 20: base station
30 base station controller 40 switchboard
50: location-based server

Claims (14)

In the mobile location system,
A mobile communication terminal;
A base station transmitting position coordinates of the mobile communication terminal;
The position information of the mobile communication terminal is calculated from the position coordinates received from the base station or the network positioning algorithm, and the reference point is set based on the position information accumulated for a predetermined period. Mobile location tracking system comprising a location-based server for setting the radius to the main residential area. The method of claim 1,
The location-based server sets any one of the calculated position information as a virtual reference point, calculates a weight according to the position of the peripheral coordinates existing within a predetermined radius of the virtual reference point and the time zone where the peripheral coordinates occur, and calculates the maximum weight. And a virtual reference point having the reference point as a mobile location tracking system. The method of claim 2,
And the location-based server sets at least one of the reference points according to the distance between the plurality of virtual reference points if the virtual reference point having the maximum weight is two or more. The method of claim 3,
The location-based server sets each of a plurality of virtual reference points as a reference point when the distance between the plurality of virtual reference points exceeds the set radius of the peripheral coordinates, and sets a plurality of distances when the distance between the plurality of virtual reference points is less than or equal to the set radius of the peripheral coordinates. Mobile positioning system, characterized in that for setting the midpoint between the virtual reference point of the reference point. The method of claim 4, wherein
The location-based server is a mobile location tracking system, characterized in that for setting the outermost line of the peripheral coordinates within a predetermined radius of the reference point as a group. The method according to any one of claims 1 to 5,
The location-based server determines whether the mobile communication terminal is leaving the group, and if the departure from the group more than a predetermined distance to notify the departure of the group to the user's terminal or service requester's terminal Tracking system. The method of claim 6,
When the mobile communication terminal is separated from the group within a predetermined distance, the location-based server may leave the group to the user's terminal or service requester's terminal if the continuous position coordinate is farther away from the group than the previous position coordinate. Mobile location tracking system, characterized in that the notification. In the service providing method of the mobile location tracking system,
Receiving the position coordinates of the mobile communication terminal from a base station or generating the position coordinates of the mobile communication terminal through a network positioning algorithm;
Calculating location information of the mobile communication terminal using the location coordinates;
Setting a reference point based on the position information accumulated for a predetermined period;
And setting a predetermined radius of the reference point as a group that is a main residence area. The method of claim 8,
Setting the reference point,
Setting any one of the calculated position information as a virtual reference point;
Calculating weights according to positions of peripheral coordinates existing within a predetermined radius of the virtual reference point and a time zone in which the peripheral coordinates occur;
And setting the virtual reference point having the maximum weight as the reference point. 10. The method of claim 9,
Setting a virtual reference point having the maximum weight as the reference point,
If the virtual reference point having the maximum weight is 2 or more, at least one of the virtual reference points is set as a reference point according to the distance between the plurality of virtual reference points. The method of claim 10,
Setting a virtual reference point having the maximum weight as the reference point,
When the distance between the plurality of virtual reference points exceeds the set radius of the peripheral coordinates, each of the plurality of virtual reference points is set as a reference point, and if the distance between the plurality of virtual reference points is less than the set radius of the peripheral coordinates between the plurality of virtual reference points A service providing method of a mobile location tracking system, characterized in that the setting of the midpoint as a reference point. The method of claim 11,
Setting the group,
And providing the outermost line of the peripheral coordinates within a predetermined radius of the reference point as a group. 13. The method according to any one of claims 8 to 12,
After setting the group,
Determining whether the mobile communication terminal leaves the group;
Determining whether the group has deviated by a predetermined distance or more;
And determining the departure of the group to the terminal of the user or the terminal of the service requester when the deviation is more than a predetermined distance. The method of claim 13,
As a result of judging whether the group has deviated by a predetermined distance or more, if the deviated within a predetermined distance, if the consecutive position coordinates deviate farther from the group than the previous position coordinates, the group is separated from the user's terminal or service requester's terminal. A service providing method of a mobile location tracking system comprising the step of notifying.
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KR20160062277A (en) 2014-11-24 2016-06-02 김재경 The system which operates a mobile game based on the location
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JP3793447B2 (en) 2000-11-02 2006-07-05 参郎 斎藤 Migrating behavior investigation device and navigation system
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KR101475035B1 (en) * 2012-09-28 2014-12-22 주식회사 두시텍 Mobile accumbent apparatus using medium electric wave
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