KR20200041684A - User device, method and computer program for providing location measurement service - Google Patents

Abstract

The present invention relates to a user terminal for providing a location measurement service. According to the present invention, the user terminal may comprise: a first receiving unit for receiving first location information from a location measurement system in an outdoor area; a second receiving unit for receiving second location information from at least one broadcast terminal installed in an indoor area; and a measurement unit for measuring a location of the user terminal using at least one of the first location information and the second location information based on whether the user terminal is located in the outdoor area or indoor area.

Description

USER DEVICE, METHOD AND COMPUTER PROGRAM FOR PROVIDING LOCATION MEASUREMENT SERVICE}

The present invention relates to a user terminal, a method and a computer program that provide a location measurement service.

In general, the vehicle driving information system can track the position of a vehicle using a global positioning system (GPS) method. That is, the vehicle driving information system may provide the vehicle's location information by tracking the vehicle's location based on signals received from a plurality of navigation satellites.

The vehicle operation information system according to the conventional GPS method has a problem in that it is impossible to measure “location” itself when satellite signals are disconnected due to shaded areas and indoor areas such as high-rise buildings in urban areas or roads inside apartments.

In such a vehicle operation information system, even if a satellite signal necessary for positioning is received, there is a problem in that “positioning” accuracy is inferior due to positioning error due to signal noise.

As a method for solving this problem, there is an indoor location measurement technology based on Wi-Fi technology. Indoor positioning technology includes, for example, triangulation. The triangulation method is a method of calculating the actual position of the object through the coordinates of three reference points and the distance to the tag to be measured. In the case of position measurement using a triangulation method, there is an inconvenience in that an absolute position value of a broadcasting terminal (eg, RSU, AP, Beacon, etc.) must be set separately.

On the other hand, in the location measurement through the conventional indoor location measurement technology, a different error range is not considered for each location positioning model of a broadcasting terminal (eg, RSU, AP, Beacon, etc.) installed in each shaded area, and a non-shaded area (or outdoor area) ) And when measuring the position of a vehicle through a GPS method in a hand-over section passing between a shaded area (or indoor area), the satellite signal strength is weak and positioning may be difficult, and the signal strength is sufficient. However, positioning may be incorrect due to fading.

Korean Registered Patent Publication No. 10-0684161 (released on Feb. 12, 2007)

The present invention is to solve the above-mentioned problems of the prior art, based on whether the user terminal is located in the outdoor zone or the indoor zone, the first location information received from the location measurement system and at least one broadcast terminal installed in the indoor zone It is intended to measure the location of the user terminal by using at least one of the second location information received from. However, the technical problems to be achieved by the present embodiment are not limited to the technical problems as described above, and other technical problems may exist.

As a technical means for achieving the above-described technical problem, a user terminal providing a location measurement service according to a first aspect of the present invention includes: a first receiving unit receiving first location information from a location measurement system in an outdoor area; A second receiver configured to receive second location information from at least one broadcast terminal installed in the indoor zone; It may include a measuring unit for measuring the location of the user terminal using at least one of the first location information and the second location information based on whether the user terminal is located in the outdoor area or the indoor area.

A method of measuring a position of a user terminal according to a second aspect of the present invention includes receiving first position information from a position measurement system in an outdoor area; Receiving second location information from at least one broadcast terminal installed in the indoor zone; And measuring the location of the user terminal using at least one of the first location information and the second location information based on whether the user terminal is located in the outdoor area or the indoor area. .

A computer program stored in a medium comprising a sequence of instructions for measuring a location of a user terminal according to a third aspect of the present invention, the computer program being executed by a computing device, the first location from a location measurement system in an outdoor area Receive information, receive second location information from at least one broadcast terminal installed in the indoor zone, and based on whether the user terminal is located in the outdoor zone or the indoor zone, the first location information and the second It may include a sequence of commands to measure the location of the user terminal using at least one of the location information.

The above-described problem solving means are merely exemplary and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and detailed description of the invention.

According to any one of the above-described problem solving means of the present invention, based on whether the user terminal is located in an outdoor zone or an indoor zone, first location information received from a location measurement system and at least one broadcast terminal installed in the indoor zone The location of the user terminal may be measured using at least one of the received second location information. Through this, the present invention is to measure the position in the shaded area and the indoor area by using the location information of the location measurement system together with the location information of the broadcast terminal in the location measurement in the shaded area (handover section) and indoor area The error can be reduced. In addition, the present invention can minimize the positioning error for the position of the user terminal in the indoor area by considering a different error range for each positioning model of the broadcasting terminal.

In addition, since the broadcasting terminal installed in the indoor zone of the present invention is a terminal for solving an error for position measurement through a location measurement system in a shaded area and an indoor area, it is linked with a location measurement system, and thus, a location is measured in a shaded area and an indoor area. The location information can be accurately received from the system.

1 is a configuration diagram of a system for providing a location measurement service according to an embodiment of the present invention.
2 is a block diagram of the user terminal shown in FIG. 1 according to an embodiment of the present invention.
3A to 3G are diagrams for describing a method for positioning a user terminal according to an embodiment of the present invention.
4A to 4C are diagrams for explaining a method for measuring coordinate values of a broadcast terminal installed in an indoor zone according to an embodiment of the present invention.
5 is a flowchart illustrating a method of measuring a location of a user terminal according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . Also, when a part “includes” a certain component, this means that other components may be further included rather than excluding other components, unless otherwise specified.

In the present specification, the term “unit” includes a unit realized by hardware, a unit realized by software, and a unit realized by using both. Further, one unit may be realized by using two or more hardware, and two or more units may be realized by one hardware.

Some of the operations or functions described in this specification as being performed by a terminal or device may be performed instead on a server connected to the corresponding terminal or device. Similarly, some of the operations or functions described as being performed by the server may be performed in a terminal or device connected to the corresponding server.

Hereinafter, specific contents for carrying out the present invention will be described with reference to the accompanying drawings or processing flow charts.

1 is a configuration diagram of a system for providing a location measurement service according to an embodiment of the present invention.

Referring to FIG. 1, a location measurement service providing system may include a user terminal 100, a location measurement system 110, and at least one broadcast terminal 120. However, since the system for providing location services of FIG. 1 is only an embodiment of the present invention, the present invention is not limitedly interpreted through FIG. 1, and may be configured differently from FIG. 1 according to various embodiments of the present invention. have.

Generally, each component of the system for providing location services of FIG. 1 is connected through a network (not shown). Network refers to a connection structure capable of exchanging information between nodes such as terminals and servers, and a local area network (LAN), a wide area network (WAN), and the Internet (WWW: World) Wide Web), wired and wireless data communication networks, telephone networks, and wired and wireless television communication networks. Examples of wireless data communication networks include 3G, 4G, 5G, 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), World Interoperability for Microwave Access (WIMAX), Wi-Fi, Bluetooth communication, infrared communication, ultrasound Communication, Visible Light Communication (VLC), LiFi, and the like are included, but are not limited thereto.

The user terminal 100 may be a terminal that measures the location of the vehicle 10 based on the location information received from the location measurement system 110 and / or at least one broadcast terminal 120 installed in the indoor zone 20. have. The user terminal 100 may be installed inside the vehicle 10 or may be installed on the outer surface of the vehicle 10.

The user terminal 100 may receive the first location information from the location measurement system 110 in an outdoor area, and receive the second location information from at least one broadcast terminal 120 installed in the indoor area 20. Here, the broadcast terminal 120 may include, for example, a beacon terminal, an AP terminal, and the like.

The user terminal 100 determines the location of the user terminal 100 using at least one of the first location information and the second location information based on whether the user terminal 100 is located in the outdoor zone or the indoor zone 20. Can be measured. For example, the user terminal 100 is a location measurement system 110, at least one broadcast terminal 120 and other communication methods (for example, Beacon (Bluetooth, 802.15), AP (Wi-fi, 802.11), When the location information received from the device using Cell-ID (Cellular) or more is four or more, the location of the user terminal 100 may be measured by integrating triangulation in the order of location information having a low distance error. In this case, the user terminal 100 may output a corresponding location in which different distance errors are reflected according to the measured location and communication method of the user terminal 100.

At least one broadcast terminal 120 installed in the indoor zone 20 is a terminal for solving an error for position measurement through the position measurement system 110 in a shaded area and an indoor area, and is interlocked with the position measurement system 110 Therefore, it is possible to accurately receive location information from the location measurement system 110 even in shaded areas and indoor areas.

The at least one broadcast terminal 120 may measure the absolute coordinate value of the broadcast terminal 120 based on the location information received from the location measurement system 110, and the measured absolute coordinate value to the indoor zone 20 It can continuously radiate to other broadcast terminals located. Through this, there is no need to install a GPS receiver on the roof to receive location information from the location measurement system 110, and there is an economical advantage in terms of infrastructure since no separate wiring is required.

In addition, since at least one broadcast terminal 120 is equipped with a detachable sensor, transmission of the second location information may be stopped through the detachable sensor when detached. Through this, inaccuracies in position positioning in the user terminal 100 according to the movement of the location of the broadcast terminal 120 can be prevented.

In addition, since at least one broadcast terminal 120 includes a solar panel, and is driven by solar electricity generated through a solar panel, there is an advantage that a separate maintenance is not required.

Hereinafter, the operation of each component of the location measurement service providing system of FIG. 1 will be described in more detail.

2 is a block diagram of a user terminal 100 shown in FIG. 1 according to an embodiment of the present invention.

Referring to FIG. 2, the user terminal 100 may include a first receiving unit 200, a second receiving unit 210 and a measuring unit 220. However, the user terminal 100 illustrated in FIG. 2 is only an example of implementation of the present invention, and various modifications are possible based on the components illustrated in FIG. 2.

When the vehicle on which the user terminal 100 is mounted is located in an outdoor area, the first receiver 200 may receive the first position information of the position measurement system 110 from the position measurement system 110 in the outdoor area. Here, the outdoor area may include an area where the user terminal 100 can communicate with the location measurement system 110.

When the vehicle enters the indoor zone 20 or is located in the indoor zone 20, the second receiver 210 may transmit the second of the broadcast terminal 120 from at least one broadcast terminal 120 installed in the indoor zone 20. Location information can be received.

The measurement unit 220 is based on whether the user terminal 100 is located in an outdoor zone or an indoor zone, first location information received from the location measurement system 110 and second received from one broadcast terminal 120. The location of the user terminal 100 may be measured using at least one of the location information.

As a first embodiment, referring to FIGS. 3A to 3B, when the user terminal 100 is moving in an outdoor area, the first reception unit 200 may perform a position measurement system from the position measurement system 110 at predetermined time intervals ( 110) may be received. Here, the first receiver 200 may receive the first location information from the location measurement system 110 through the GPS L-band. The first position information received from the position measurement system 110 includes, for example, a position value (x, y, z) for the position measurement system 110 and a time value (b) for transmitting the first position information. You can. Here, the position values (x, y, z) may include latitude, longitude, and altitude values.

When the user terminal 100 is located in an outdoor area, the measurement unit 220 may measure the location of the user terminal 100 using the first location information received from the location measurement system 110. Specifically, the measurement unit 220 may measure the location of the user terminal 100 using the first location information received from the location measurement system 110 at predetermined time intervals.

For example, the first position information 301 is received at the first time from the position measurement system 110, the first position information 303 is received at the second time, and the first position information ( 305), and assuming that the first location information 307 is received at the fourth time, the measurement unit 220 is based on the time value included in the first location information 307 received at the fourth time. After synchronizing the time values of the first location information 301, 303, 305, the location measurement system 110 and the user terminal 100 that transmitted the first location information 301, 303, 305, 307 at each time You can calculate the distance between them. At this time, the distance between the location measurement system 110 and the user terminal 100 may be calculated as a product of a time difference and a light flux between time values included in a plurality of first location information as shown in [Equation 1].

[Equation 1]

__A = C * (

-

)

__A = C * (

-

)

-

는 복수의 제 1 위치 정보에 포함된 시간값 간의 시간차이고, C는 광속이다. Here, ri__A is the distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information,

-

Is a time difference between time values included in the plurality of first location information, and C is a light flux.

When the first location information received from the location measurement system 110 is four or more, the measurement unit 220 may measure the location of the user terminal 100 by performing an integrated triangular positioning in the order of location information having a low distance error.

The measurement unit 220 may calculate an error range for a distance between the location measurement system 110 and the user terminal 100 based on the error range table according to the positioning model shown in FIG. 3C. Specifically, the measurement unit 220 based on the sum of the positioning model error of the positioning model 309 corresponding to the GPS L-band (L-Band) and the calculated distance error according to the positioning model, the user and the location measurement system 110 The error range for the distance between the terminals 100 may be calculated.

Thereafter, the measurement unit 220, as shown in [Equation 2], an error range for the distance between the location measurement system 110 and the user terminal 100 at the calculated distance between the location measurement system 110 and the user terminal 100 By applying, it is possible to correct the distance between the location measurement system 110 and the user terminal 100.

[Equation 2]

_A ±

=

_A ±

=

_A는 제 1 위치 정보를 전송한 위치 측정 시스템(110)과 사용자 단말(100) 간의 거리이고,

는 위치 측정 시스템(110)과 사용자 단말(100) 간의 거리에 대한 오차 범위이고,

,

)는 제 1 위치 정보를 전송한 위치 측정 시스템(110)의 위치값이고, (

,

,

)는 위치 측정 시스템(110)의 위치값을 보정하기 위한 보정값이다. here,

_A is the distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information,

Is the error range for the distance between the location measurement system 110 and the user terminal 100,

,

) Is a position value of the position measurement system 110 that has transmitted the first position information, (

,

,

) Is a correction value for correcting the position value of the position measurement system 110.

_A), 제 2 시각에 제 1 위치 정보(303)를 전송한 위치 측정 시스템(110)과 사용자 단말(100) 간의 보정된 거리(

_A) 및 제 3 시각에 제 1 위치 정보(305)를 전송한 위치 측정 시스템(110)과 사용자 단말(100) 간의 보정된 거리(

_A)에 기초하여 사용자 단말(100)의 위치를 측정할 수 있다. 또한, 측정부(220)는 사용자 단말(100)의 위치에 오차 범위를 적용하여 사용자 단말(100)의 위치를 보정할 수 있다. The measurement unit 220 is the corrected distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information 301 at the first time (

_A), the corrected distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information 303 at the second time (

_A) and the corrected distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information 305 at the third time (

The location of the user terminal 100 may be measured based on _A). Also, the measurement unit 220 may correct the position of the user terminal 100 by applying an error range to the position of the user terminal 100.

As a second embodiment, referring to FIGS. 3D to 3E, when the user terminal 100 is located in a shaded area between the outdoor area and the indoor area 20, the first receiver 200 is a position measurement system 110 The first location information is received, and the second receiver 2100 may receive the second location information from at least one broadcast terminal 120 installed in the indoor zone 20. Here, the indoor zone 20 may include an area in which the user terminal 100 cannot communicate with the location measurement system 110. The indoor zone 20 is provided with a plurality of broadcast terminals 122, 124, 126 at predetermined intervals.

Specifically, when the user terminal 100 moves to the shaded area between the outdoor area and the indoor area 20, the first receiver 200 receives the first position information from the position measurement system 110, and the second The receiver 210 may receive the second location information from the first broadcast terminal 122 installed in the outer portion of the indoor zone 20 in contact with the outdoor zone. Here, the second location information received from the first broadcast terminal 122 is, for example, based on the first location information of the location measurement system 110, the first broadcast terminal measured by the first broadcast terminal 122 ( 122). The second location information received from the first broadcast terminal 122 may be, for example, coordinate values measured based on the RSS method according to the propagation strength and delay time of the first broadcast terminal 122.

The measurement unit 220 first and second location information based on whether the second location information is received from at least one broadcast terminal 120 installed in the indoor zone 20 according to the location of the user terminal 100. The location of the user terminal 100 may be measured using at least one of the information.

The measurement unit 220 measures the location of the user terminal 100 by integrating the first location information and the second location information when the user terminal 100 is located in a shaded area between the outdoor area and the indoor area 20 can do.

For example, when the first location information received from the location measurement system 110 and the second location information received from at least one broadcast terminal 120 are four or more, the measurement unit 220 has a low distance error. The position of the user terminal 100 can be measured by integrating triangular positioning in the order of information.

For example, the measurement unit 220 is based on the second location information of the first broadcast terminal 122 installed in the outer portion of the indoor zone 20 in contact with the outdoor zone, the first broadcast terminal 122 and the user terminal The distance between (100) can be calculated. Thereafter, the measurement unit 220 may calculate an error range for a distance between the first broadcast terminal 122 and the user terminal 100 based on the error range table according to the positioning model shown in FIG. 3C. For example, the measurement unit 220 is based on the sum of the positioning model error of the positioning model corresponding to the AP communication network and the calculated distance error according to the positioning model, to the distance between the first broadcast terminal 122 and the user terminal 100. Can calculate the error range for

Thereafter, the measurement unit 220 applies an error range for the distance between the first broadcast terminal 122 and the user terminal 100 to the calculated distance between the first broadcast terminal 122 and the user terminal 100, thereby 1 The distance between the broadcast terminal 122 and the user terminal 100 may be corrected.

_A), 제 2 시각에 제 1 위치 정보(303)를 전송한 위치 측정 시스템(110)과 사용자 단말(100) 간의 보정된 거리(

_A), 제 3 시각에 제 1 위치 정보(305)를 전송한 위치 측정 시스템(110)과 사용자 단말(100) 간의 보정된 거리(

_A) 및 제 1 방송 단말(122)과 사용자 단말(100) 간의 보정된 거리(

_A)에 기초하여 사용자 단말(100)의 위치를 측정할 수 있다. 또한, 측정부(220)는 사용자 단말(100)의 위치에 오차 범위를 적용하여 사용자 단말(100)의 위치를 보정할 수 있다. The measurement unit 220 is the corrected distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information 301 at the first time (

_A), the corrected distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information 303 at the second time (

_A), the corrected distance between the location measurement system 110 and the user terminal 100 that transmitted the first location information 305 at the third time (

_A) and the corrected distance between the first broadcast terminal 122 and the user terminal 100 (

The location of the user terminal 100 may be measured based on _A). Also, the measurement unit 220 may correct the position of the user terminal 100 by applying an error range to the position of the user terminal 100.

As a third embodiment, referring to FIGS. 3F to 3G, when the user terminal 100 is located in the indoor zone 20, the second receiver 210 is a plurality of broadcast terminals 122 installed in the indoor zone 20 , 124, 126 may receive second location information of the plurality of broadcast terminals 122, 124, 126. Here, the second location information of the plurality of broadcast terminals 122, 124, and 126 includes coordinate values of the first broadcast terminal 122, coordinate values of the second broadcast terminal 124, and coordinates of the third broadcast terminal 126. It can contain values. For example, the second receiver 210 receives the second location information from the first broadcast terminal 122 installed on the outside of the indoor zone 20 in contact with the outdoor zone, and the interior of the indoor zone 20 is received. The second location information may be received from each of the installed second broadcast terminal 124 and the third broadcast terminal 126. When the user terminal 100 is located in the indoor zone 20, the measurement unit 220 receives a plurality of second location information received from the plurality of broadcast terminals 122, 124, and 126 installed in the indoor zone 20. It can be used to measure the location of the user terminal 100.

For example, the measurement unit 220 is based on each of the second location information received from the plurality of broadcast terminals 122, 124, 126, and the distance between each of the broadcast terminals 122, 124, 126 and the user terminal 100 Can be calculated.

For example, when the second location information received from the plurality of broadcast terminals 122, 124, and 126 installed in the indoor zone 20 is four or more, the measurement unit 220 is integrated in the order of location information having a low distance error. The position of the user terminal 100 may be measured by triangulation.

Thereafter, the measurement unit 220 may calculate an error range for a distance between each of the broadcast terminals 122, 124, and 126 and the user terminal 100 based on the error range table according to the positioning model illustrated in FIG. 3C.

Thereafter, the measurement unit 220 is an error in the distance between each broadcast terminal (122, 124, 126) and the user terminal 100 to the calculated distance between each broadcast terminal (122, 124, 126) and the user terminal 100 The distance between each broadcast terminal 122, 124, and 126 and the user terminal 100 can be corrected by applying a range, respectively.

_A,

_A,

_A)에 기초하여 사용자 단말(100)의 위치를 측정할 수 있다. 또한, 측정부(220)는 사용자 단말(100)의 위치에 오차 범위를 적용하여 사용자 단말(100)의 위치를 보정할 수 있다. The measuring unit 220 is a calibrated distance between each broadcast terminal (122, 124, 126) and the user terminal (100

_A,

_A,

The location of the user terminal 100 may be measured based on _A). Also, the measurement unit 220 may correct the position of the user terminal 100 by applying an error range to the position of the user terminal 100.

For a moment, with reference to FIGS. 4A to 4C, a method of measuring coordinate values of at least one broadcast terminal 120 installed in the indoor zone 20 will be described.

4A to 4C, when the broadcast terminals installed on the outside of the indoor zone 20 are the first broadcast terminal 122, the second broadcast terminal 124, and the third broadcast terminal 126, respectively The broadcast terminals 122, 124, and 126 receive first location information of the location measurement system 110 from the location measurement system 110, and each broadcast terminal 122, 124, 126 based on the received first location information ) Can be measured.

The indoor coordinate value of the fourth broadcast terminal 128 is based on the absolute coordinate values of each of the first broadcast terminal 122, the second broadcast terminal 124, and the third broadcast terminal 126, the first broadcast terminal 122 , It may be measured through triangulation between the second broadcast terminal 124 and the third broadcast terminal 126. For example, the distance (R1_AE) between the first broadcast terminal 122 and the fourth broadcast terminal 128 is the position value of each broadcast terminal 122, 124, 126, and the first broadcast terminal 122 and the second It may be calculated in a triangular position based on a preset first distance 401 between the broadcast terminals 124 and a second preset distance 403 between the second broadcast terminals 124 and the fourth broadcast terminals 128. The indoor coordinate values (x4, y4, z4) of the fourth broadcast terminal 128 are the distance (R1_AE) between the first broadcast terminal 122 and the fourth broadcast terminal 128 and the absolute coordinates of the first broadcast terminal 122 It can be derived through [Equation 3] based on the values (x1, y1, z1).

[Equation 3]

R1_AE ± ER4 =

The indoor coordinate value of the fifth broadcast terminal 130 is based on the absolute coordinate value of the first broadcast terminal 122, the absolute coordinate value of the second broadcast terminal 124 and the indoor coordinate value of the fourth broadcast terminal 128. It may be measured through triangulation between the first broadcast terminal 122, the second broadcast terminal 124, and the fourth broadcast terminal 128.

Meanwhile, those skilled in the art will fully understand that each of the first receiving unit 200, the second receiving unit 210, and the measuring unit 220 may be implemented separately, or one or more of them may be integrated and implemented.

5 is a flowchart illustrating a method of measuring the position of the user terminal 100 according to an embodiment of the present invention.

The method for measuring the position of the user terminal 100 according to the embodiment shown in FIG. 5 includes the user terminal 100, the position measurement system 110, and at least one broadcast terminal according to the embodiment shown in FIGS. 120). Accordingly, even if omitted, the descriptions of the user terminal 100, the position measurement system 110, and the at least one broadcast terminal 120 of FIGS. 1 to 4C are provided according to the embodiment illustrated in FIG. 5. It can also be applied to a method of measuring the position of the user terminal 100.

Referring to FIG. 5, in step S501, the user terminal 100 may receive first location information of the location measurement system 110 from the location measurement system 110 in an outdoor area.

In step S503, the user terminal 100 may receive the second location information of the broadcast terminal 120 from at least one broadcast terminal 120 installed in the indoor zone 20.

In step S505, the user terminal 100 uses the at least one of the first location information and the second location information based on whether the user terminal 100 is located in the outdoor zone or the indoor zone 20, and then the user terminal 100 Can measure the position of

Although not shown in FIG. 5, in step S505, the user terminal 100 receives at least one of the first location information and the second location information based on whether the second location information is received according to the location of the user terminal 100. It can be used to measure the location of the user terminal 100.

Although not shown in FIG. 5, in step S505, the user terminal 100 receives first location information of the location measurement system 110 received from the location measurement system 110 when the user terminal 100 is located in an outdoor area. It can be used to measure the location of the user terminal 100.

Although not shown in FIG. 5, in step S505, the user terminal 100 is the first location information of the location measurement system 110 when the user terminal 100 is located in a shaded area between the outdoor area and the indoor area 20 And integrating the second location information of the broadcast terminal 120 to measure the location of the user terminal 100.

Although not shown in FIG. 5, in step S505, when the user terminal 100 is located in the indoor zone 20, in step S505, the user terminal 100 removes the broadcast terminal 120 received from at least one broadcast terminal 120. 2 The location of the user terminal 100 may be measured using location information.

In the above description, steps S501 to S505 may be further divided into additional steps or combined into fewer steps according to an embodiment of the present invention. In addition, some steps may be omitted if necessary, and the order between the steps may be changed.

One embodiment of the present invention may also be implemented in the form of a recording medium including instructions executable by a computer, such as program modules, being executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, the computer-readable medium may include any computer storage medium. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

The above description of the present invention is for illustration only, and a person having ordinary knowledge in the technical field to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted to be included in the scope of the present invention. .

100: user terminal
110: position measuring system
120: at least one broadcast terminal
200: first receiver
210: second receiving unit
220: measuring unit

Claims (18)

In the user terminal providing a location measurement service,
A first receiver configured to receive first location information from a location measurement system in an outdoor area;
A second receiver configured to receive second location information from at least one broadcast terminal installed in the indoor zone; And
Measurement unit for measuring the location of the user terminal using at least one of the first location information and the second location information based on whether the user terminal is located in the outdoor area or the indoor area
That includes, the user terminal.
According to claim 1,
The measuring unit measures the location of the user terminal by using at least one of the first location information and the second location information based on whether the second location information is received according to the location of the user terminal. , User terminal.
According to claim 2,
The outdoor area includes an area in which the user terminal can communicate with the location measurement system, and the indoor area includes an area in which the user terminal cannot communicate with the location measurement system. User terminal.
The method of claim 3,
The measuring unit measures the location of the user terminal by using the first location information received from the location measurement system when the user terminal is located in the outdoor area.
The method of claim 4,
The measuring unit measures the location of the user terminal by using the second location information received from the at least one broadcast terminal when the user terminal is located in the indoor area.
The method of claim 5,
When the user terminal is located in a shaded area between the outdoor area and the indoor area,
The first receiver and the second receiver are capable of receiving the first location information and the second location information, respectively, the user terminal.
The method of claim 5,
The measuring unit measures the location of the user terminal by integrating the first location information and the second location information, the user terminal.
According to claim 1,
In the indoor zone, a plurality of broadcast terminals are provided at predetermined intervals, and the user terminal.
The method of claim 8,
The plurality of broadcast terminals includes at least one first broadcast terminal installed in an outer portion of the indoor area in contact with the outdoor area, the user terminal.
The method of claim 9,
A user terminal in which an absolute coordinate value of the first broadcast terminal is measured by the first location information received from the location measurement system.
The method of claim 10,
The plurality of broadcast terminals further comprises at least one second broadcast terminal installed inside the indoor zone, the user terminal.
The method of claim 11,
A user terminal in which the indoor coordinate value of the second broadcast terminal is measured through positioning between the plurality of broadcast terminals based on the absolute coordinate values of the first broadcast terminal.
In the method of measuring the position of the user terminal,
Receiving first location information from a location measurement system in an outdoor area;
Receiving second location information from at least one broadcast terminal installed in the indoor zone; And
Measuring a location of the user terminal using at least one of the first location information and the second location information based on whether the user terminal is located in the outdoor zone or the indoor zone.
That is, the method of measuring the position.
The method of claim 13,
Measuring the position of the user terminal is
Measuring the location of the user terminal using at least one of the first location information and the second location information based on whether the second location information has been received according to the location of the user terminal. Way.
The method of claim 14,
Measuring the position of the user terminal is
Measuring the location of the user terminal using the first location information received from the location measurement system when the user terminal is located in the outdoor area
It further comprises, a position measuring method.
The method of claim 15,
Measuring the position of the user terminal is
Measuring the location of the user terminal using the second location information received from the at least one broadcast terminal when the user terminal is located in the indoor area
It further comprises, a position measuring method.
The method of claim 16,
Measuring the position of the user terminal is
When the user terminal is located in a shaded area between the outdoor area and the indoor area, measuring the position of the user terminal by integrating the first location information and the second location information
It further comprises, a position measuring method.
In a computer program stored in a medium containing a sequence of instructions for measuring the position of the user terminal,
When the computer program is executed by a computing device,
Receiving first location information from a location measurement system in an outdoor area,
The second location information is received from at least one broadcast terminal installed in the indoor area,
And a sequence of instructions to measure the location of the user terminal using at least one of the first location information and the second location information based on whether the user terminal is located in the outdoor area or the indoor area. , Computer programs stored on media.

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