WO2018056533A1 - Dispositif d'estimation de position, et procédé d'estimation de position - Google Patents

Dispositif d'estimation de position, et procédé d'estimation de position Download PDF

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Publication number
WO2018056533A1
WO2018056533A1 PCT/KR2017/001522 KR2017001522W WO2018056533A1 WO 2018056533 A1 WO2018056533 A1 WO 2018056533A1 KR 2017001522 W KR2017001522 W KR 2017001522W WO 2018056533 A1 WO2018056533 A1 WO 2018056533A1
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WO
WIPO (PCT)
Prior art keywords
access point
terminal
directional antennas
location
user terminal
Prior art date
Application number
PCT/KR2017/001522
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English (en)
Korean (ko)
Inventor
성태경
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(주)와이파이브
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Publication date
Application filed by (주)와이파이브 filed Critical (주)와이파이브
Publication of WO2018056533A1 publication Critical patent/WO2018056533A1/fr

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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
    • G01S5/0009—Transmission of position information to remote stations
    • 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
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Definitions

  • the present invention relates to a position estimating apparatus and a position estimating method, and more particularly, to a position estimating apparatus and a position estimating method for estimating a position of a user terminal using an access point having a plurality of directional antennas.
  • Wireless-based location systems are already in common use, such as Wireless LAN (WLAN), Wireless Fidelity (Wi-Fi), Wireless Broadband Internet (Wi-Fi), World Interoperability for Microwave Access (HMAX), and High Speed Downlink Packet Access (Zigbee), Bluetooth (Bluetooth), Ultra-wideband (UWB), Infrared Data Association (IrDA), Ultra Wild Band (WAP), Shared Wireless Access Protocol (SWAP), Long Term Evolution (LTE) It is very effective in terms of cost since it is used.
  • WLAN Wireless Fidelity
  • Wi-Fi Wireless Broadband Internet
  • HMAX World Interoperability for Microwave Access
  • Zigbee High Speed Downlink Packet Access
  • Bluetooth Bluetooth
  • Ultra-wideband UWB
  • IrDA Infrared Data Association
  • WAP Ultra Wild Band
  • SWAP Shared Wireless Access Protocol
  • LTE Long Term Evolution
  • wireless networks can implement location systems through notebook computers, PDAs, smartphones or other wireless mobile devices, and these software-based location solutions are significantly less expensive than indoor dedicated location tracking architectures.
  • wireless-based positioning techniques generally use a variety of methods to relatively triangulate a location.
  • Conventional indoor location estimation technology is a cell ID method for recognizing the cell ID (cell identification) of the access point, multi-position positioning method using the RSSI (Received Signal Strength Indicator) to calculate the position by the difference in signal strength between base stations And a radio frequency (Fingerprint) method using radio wave strength for each location.
  • RSSI Receiveived Signal Strength Indicator
  • RFID Radio frequency
  • the cell ID method has a large error, and the multivariate positioning method using RSSI has a low throughput and an infrastructure cost burden due to interference between various access point signals, and the RF finger print method has a large amount of calculation and is sensitive to environmental changes. There is this.
  • a position estimating apparatus and a position estimating method for estimating the position of a terminal using an access point (access point capable of wireless communication with a terminal) including a plurality of directional antennas have been proposed.
  • Patent Document 1 Korean Patent Publication No. 10-2014-0063650, Publication Date May 27, 2014 is an example of implementing such a method.
  • Patent Document 1 should be an expensive device including a display. Therefore, it is difficult to apply to a terminal without a display, for example, a low-cost terminal installed in a hard hat or a cart.
  • Patent Document 2 Domestic Patent Publication No. 10-2014-0063651, published May 27, 2014
  • the terminal and the terminal location information management server since a plurality of terminals are monitored using an AP having a plurality of antennas, the terminal and the terminal location information management server Although there is an advantage of not needing a separate communication channel, there is a problem in that the phase difference of the received signal must be precisely measured.
  • the problem to be solved by the present invention is to use a low-cost terminal without a display in the position estimation of the plurality of terminals using an access point comprising a plurality of terminals and a plurality of directional antenna, the terminal and the terminal There is no need for a separate communication channel between the location information management server.
  • Location estimation apparatus of the present invention a plurality of user terminals; An access point having a plurality of directional antennas; And the plurality of user terminals periodically transmit different unique information, and the access point estimates the location of the user terminal using the unique information received by the plurality of directional antennas.
  • the access point may be installed on a ceiling of a point having a plurality of passages, and each of the plurality of directional antennas of the access point may be installed in a direction toward the passage.
  • the access point may be a beacon scanner.
  • the user terminal may be installed in a portion of the cart.
  • the user terminal may be a wearable device that can be worn on a user's body.
  • the plurality of directional antennas may receive unique information of the user terminal using the same channel.
  • the location estimating apparatus may further include a terminal location information management server, and the access point may transmit the estimated location of the user terminal to the terminal location information management server.
  • a location estimation method is a location estimation method using a location estimation device including a plurality of user terminals and an access point having a plurality of directional antennas.
  • the access point includes a second step of estimating the position of the user terminal using the unique information received by a plurality of directional antennas.
  • the location estimation method may further include a third step of transmitting the terminal location estimated by the access point to a terminal location information management server.
  • the access point is installed on the ceiling of a point having a plurality of passages, and the plurality of directional antennas of the access point are respectively installed in a direction toward the passage, so that in the second step, the position information of the user terminal can be estimated. At this time, it is also possible to estimate the moving direction of the user terminal using the change in the intensity of the signal received by the plurality of directional antennas.
  • a location estimation method is a location estimation method using a location estimation apparatus including a plurality of user terminals, an access point having a plurality of directional antennas, and a terminal location information management server. Is a first step of periodically transmitting different unique information; The access point transmits the unique information received by a plurality of directional antennas to a terminal location information management server managing terminal location information; And a third step of estimating the location of the user terminal based on the received information.
  • the access point is installed on the ceiling of a point having a plurality of passages, and the plurality of directional antennas of the access point are respectively installed in the direction toward the passage, so that in the third step, the position information of the user terminal can be estimated. At this time, it is also possible to estimate the moving direction of the user terminal using the change in the intensity of the signal received by the plurality of directional antennas.
  • a low-cost terminal without a display can be used, and a separate communication channel between the terminal and the terminal location management server There is no need for this.
  • FIG. 1 is a conceptual diagram of a position estimation device according to the present invention
  • FIG. 2 is an example of a reception strength graph according to the movement of a user terminal.
  • Figure 3 is an installation example of the position estimation device according to the present invention.
  • FIG. 1 is a conceptual diagram of a position estimation apparatus according to the present invention.
  • an access point having a plurality of directional antennas is installed on the ceiling.
  • the user terminal periodically transmits its own information.
  • the unique information of the user terminal is information for distinguishing it from other user terminals.
  • the unique information of the user terminal may be a unique number of the device or may be a mac address of the device. That is, it may be variously modified as necessary, and any information may be provided as long as it can be distinguished from other user terminals.
  • the directional antenna can receive the radio wave, so that the user terminal is in the radio wave reception area of the directional antenna which has received radio waves. Can be. That is, if the directional antenna A receives the radio wave of the user terminal, it can be estimated that the user terminal is located in the receiveable area of the directional antenna A, and if the directional antenna B receives the radio wave of the user terminal, the receiveable area of the directional antenna B It can be assumed that there is a user terminal at.
  • the position of the access point including the directional antenna the position of the radio wave reception region of the directional antenna should be stored in advance.
  • Examples of the user terminal include a wearable device (for example, a smart watch, a smart band, a device attached to a work cap, a device attached to a seat belt, etc.) in addition to a smartphone, a terminal attached to a cart of a large mart.
  • a wearable device for example, a smart watch, a smart band, a device attached to a work cap, a device attached to a seat belt, etc.
  • a terminal attached to a cart of a large mart for example, a wearable device (for example, a smart watch, a smart band, a device attached to a work cap, a device attached to a seat belt, etc.) in addition to a smartphone, a terminal attached to a cart of a large mart.
  • the user terminal is attached to the cart of the hypermarket, it is possible to grasp the shopping line of the user of the hypermarket. If attached to the worker's work cap, it is possible to determine the movement path of the workers.
  • An example of an access point with multiple directional antennas is a beacon scanner.
  • Beacon scanner is a next-generation short-range communication technology through low-power Bluetooth.
  • Bluetooth beacon scanner can track up to 100 meters with 4 antennas and can track a total of 2000 beacon terminals.
  • FIG. 2 is an example of a reception strength graph according to the movement of a user terminal.
  • FIG. 2A is a graph of Received Signal Strength of RSS_A and RSS_B
  • FIG. 2B is a graph obtained by subtracting RSS_B from RSS_A.
  • RSS_A is the radio wave strength of the user terminal received by the antenna A
  • RSS_B is the radio wave strength of the user terminal received by the antenna B.
  • RSS_A and RSS_B may contain noise, RSS_A and RSS_B may be treated as valid values only if their size is larger than the RSS_threshold.
  • the user terminal may be estimated to move in the direction of the arrow of FIG. 1 (the direction from the reception area of antenna A to the reception area of antenna B).
  • the access point of FIG. 1 may be installed in the ceiling of a point having a plurality of passages, and in this case, the direction of movement of the users may be known.
  • 3 is an example of installation of the position estimating apparatus according to the present invention.
  • FIG. 3A illustrates an example in which an access point is installed at a point having two passages
  • FIG. 3B illustrates an example in which an access point is installed at a point having three passages.
  • an access point is installed at a point having two passages.
  • the access point when the access point is installed on the ceiling of a point having a plurality of passages, and the plurality of directional antennas of the access point are respectively installed in the direction toward the passage, the information received by the plurality of directional antennas of the access point is used. It is possible to determine which passages a number of user terminals enter and exit.
  • the radio wave information received by the plurality of access points must be transmitted to the terminal location information management server managing location information of the terminal so that the terminal location information management server can manage the information of the plurality of user terminals.
  • the location estimation apparatus preferably further includes a terminal location information management server.
  • the location estimating apparatus of the present invention includes a user terminal, an access point, and a terminal location information management server, and the user terminal can wirelessly communicate with the access point, and communicate with the access point and the terminal location information management server by wire or wirelessly. can do.
  • the position estimation method according to the present invention includes the following three steps.
  • the access point transmits the estimated terminal location to the terminal location information management server
  • the second step when estimating the position information of the user terminal, it may also estimate the movement direction of the user terminal by using the change in the intensity of the signal received by the plurality of directional antennas.
  • the location estimation method according to the present invention may be modified as follows. .
  • the terminal location information management server estimating the location of the user terminal based on the received information
  • the conventional multi-antenna-based beacon scanner it increases the scannable signal by allocating different channels for each antenna.
  • the present invention uses the same channel between the directional antennas of one access point. Therefore, when one user terminal moves while generating the same signal, the directional antennas of one access point may sequentially detect signals of the moving user terminals, and thus may know the moving direction of the user terminal.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

La présente invention concerne un dispositif d'estimation de position et un procédé d'estimation de position par lesquels une pluralité de terminaux d'utilisateur transmettent périodiquement des informations uniques différentes les unes des autres, et un point d'accès estime les positions des terminaux d'utilisateur à l'aide des informations uniques reçues par une pluralité d'antennes directionnelles du point d'accès. Via l'estimation des positions de la pluralité de terminaux à l'aide de la pluralité de terminaux et du point d'accès comprenant la pluralité d'antennes directionnelles, la présente invention permet d'utiliser un terminal à faible coût dépourvu d'affichage et n'exige pas un canal de communication séparé entre le terminal et un serveur de centre de commande.
PCT/KR2017/001522 2016-09-26 2017-02-13 Dispositif d'estimation de position, et procédé d'estimation de position WO2018056533A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160122965A KR101793924B1 (ko) 2016-09-26 2016-09-26 위치추정장치 및 위치추정방법
KR10-2016-0122965 2016-09-26

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WO2018056533A1 true WO2018056533A1 (fr) 2018-03-29

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KR102157879B1 (ko) * 2018-11-12 2020-09-18 (주)코놀 격벽구조를 갖는 실내 공간 내에서의 측위 시스템 및 방법
KR102078156B1 (ko) * 2018-11-30 2020-02-17 주식회사 엘핀 섹터안테나를 이용한 단말의 위치 추정 방법 및 장치
KR102259913B1 (ko) * 2019-11-21 2021-06-24 (주)비이인터렉티브 비콘 신호를 이용한 이동체의 감지 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014065539A1 (fr) * 2012-10-22 2014-05-01 (주)와이파이브 Dispositif conçu pour l'estimation d'une localisation et procédé conçu pour l'estimation d'une localisation au moyen d'un point d'accès de liaison montante
KR101415191B1 (ko) * 2012-10-22 2014-07-04 충남대학교산학협력단 보행자 경로안내 장치
KR20150009142A (ko) * 2013-07-16 2015-01-26 주식회사 사운들리 매장의 고객 무선네트워크 관리 시스템 및 단말기
WO2015122682A1 (fr) * 2014-02-13 2015-08-20 김권영 Détecteur pour identifier un utilisateur à courte distance, et système d'identification d'utilisateur à courte distance l'utilisant
US20150334534A1 (en) * 2014-05-13 2015-11-19 Samsung Electronics Co., Ltd. Method and system for determining a position of a mobile device by an access point

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014065539A1 (fr) * 2012-10-22 2014-05-01 (주)와이파이브 Dispositif conçu pour l'estimation d'une localisation et procédé conçu pour l'estimation d'une localisation au moyen d'un point d'accès de liaison montante
KR101415191B1 (ko) * 2012-10-22 2014-07-04 충남대학교산학협력단 보행자 경로안내 장치
KR20150009142A (ko) * 2013-07-16 2015-01-26 주식회사 사운들리 매장의 고객 무선네트워크 관리 시스템 및 단말기
WO2015122682A1 (fr) * 2014-02-13 2015-08-20 김권영 Détecteur pour identifier un utilisateur à courte distance, et système d'identification d'utilisateur à courte distance l'utilisant
US20150334534A1 (en) * 2014-05-13 2015-11-19 Samsung Electronics Co., Ltd. Method and system for determining a position of a mobile device by an access point

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