WO2011088608A1 - Système de localisation intérieure/extérieure basé sur des étiquettes électroniques et base de données et procédé de localisation dudit système - Google Patents

Système de localisation intérieure/extérieure basé sur des étiquettes électroniques et base de données et procédé de localisation dudit système Download PDF

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Publication number
WO2011088608A1
WO2011088608A1 PCT/CN2010/002222 CN2010002222W WO2011088608A1 WO 2011088608 A1 WO2011088608 A1 WO 2011088608A1 CN 2010002222 W CN2010002222 W CN 2010002222W WO 2011088608 A1 WO2011088608 A1 WO 2011088608A1
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WO
WIPO (PCT)
Prior art keywords
tag
electronic
database
radio frequency
indoor
Prior art date
Application number
PCT/CN2010/002222
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English (en)
Chinese (zh)
Inventor
张楠
Original Assignee
上海图渊信息技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海图渊信息技术有限公司 filed Critical 上海图渊信息技术有限公司
Publication of WO2011088608A1 publication Critical patent/WO2011088608A1/fr

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Classifications

    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • G01S13/876—Combination of several spaced transponders or reflectors of known location for determining the position of a receiver
    • 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
    • G01S5/0295—Proximity-based methods, e.g. position inferred from reception of particular signals

Definitions

  • the invention relates to a positioning system for logistics and navigation, in particular to an indoor and outdoor positioning system based on an electronic tag and a database and a positioning method thereof.
  • LBS Location Based Service
  • GPS GPS is a navigation system based on a medium-distance circular orbit satellite. It provides accurate positioning, speed measurement and high-precision time standards for most areas of the Earth's surface.
  • the GPS system consists of approximately 24 dedicated GPS satellites and ground support equipment. Civil GPS can achieve a positioning accuracy of about ten meters.
  • the disadvantages are: The GPS is not accurate enough to cover indoor and shaded outdoor spaces, and is not easy to deploy. At the same time, users are also being tracked while using navigation services, and privacy cannot be guaranteed.
  • WiFi wireless local area network
  • IEEE802.il protocol wireless local area network
  • the WiFi network set under the IEEE802.il protocol uses two wireless modes in the IEEE802.il protocol. Frequency modulation method and a way of infrared transmission. Communication between the two devices can be done in a free and direct manner, or under the coordination of a base station or access point.
  • GSM or CDMA wireless mobile communication network is made up of many small like bee cells.
  • each cell has its own number, and the area where the mobile phone is located can be known by the identification number of the cell where the mobile phone is located.
  • the disadvantages are: The positioning accuracy of the indoor application is not enough, and the privacy of the user cannot be protected.
  • RFID is the abbreviation of Radio Frequency Identification, which is radio frequency identification, commonly known as electronic label.
  • RFID radio frequency identification is a non-contact automatic identification technology. It automatically recognizes the target object and acquires relevant data through radio frequency signals. The identification work can work in various bad environments without manual intervention.
  • RFID technology recognizes high-speed moving objects and recognizes multiple labels at the same time, making operation quick and easy. Disclosure of invention
  • the invention provides an indoor and outdoor positioning system based on an electronic tag and a database and a positioning method thereof, which can realize high-precision indoor and outdoor geographical positioning, low deployment cost, and is more suitable for mobile computing, and solves the problem that the user's location and other privacy are exposed.
  • the problem can realize high-precision indoor and outdoor geographical positioning, low deployment cost, and is more suitable for mobile computing, and solves the problem that the user's location and other privacy are exposed.
  • the present invention provides an indoor and outdoor positioning system based on an electronic tag and a database, and a positioning method thereof, the system comprising a reading device, and a plurality of electronic radio frequency tags; the electronic radio frequency tag and the reading device are wirelessly connected The radio frequency is identified.
  • the above-mentioned electronic radio frequency tag is disposed on a fixed or mobile marker indoors and outdoors; the above-mentioned reading device is a mobile device.
  • the above-mentioned electronic radio frequency tag database contains location coded information of the tag; the above-mentioned reading device database contains geographical information.
  • the above-mentioned electronic radio frequency tag includes a geotag and an object tag; the geotag is in an absolutely static state; the object tag stores a position code of the object and a code of the object's own name and nature, and the object can move, and when the object tag moves, According to the needs of the actual application, the position information after the movement is obtained by manual or instrumental measurement, and the database position coding information of the object label is updated accordingly.
  • the above-mentioned electronic radio frequency tag is active or passive, and the transmitting frequency of the electronic radio frequency tag is low frequency or high frequency or ultra high frequency.
  • the above reading device is divided into a high frequency reader and a UHF reader, the reading distance of the high frequency reader is 0 to 20 cm, and the reading distance of the UHF reader is 0 to 2 meters.
  • Positioning method for indoor and outdoor positioning system based on electronic radio frequency tag and database, The feature is that it contains the following steps:
  • Step 1 pre-arrange a plurality of geotags and object tags on fixed or moving markers in the indoor, shaded outdoor or unobstructed outdoor space, and record the location coded information of the tags in the tag database;
  • Step 2 The reading device starts to detect the label
  • Step 3 The reading device reads location code information in the electronic radio frequency tag database
  • Step 3.1 The reading device transmits radio waves
  • Step 3.2 After the electronic RF tag senses the radio signal of the device, it feeds back the location code information of its internal database to the reading device;
  • Step 4 The reading device queries the information in the reading device database according to the location encoding information in the read tag database, and obtains the geographical location information of the tag location;
  • Step 5 Read the geographical location information of the current location of the device display label.
  • step 3 if the electronic radio frequency tag is detected within the reading distance, and the signal strength exceeds the set threshold, step 3 is performed. If a plurality of electronic radio frequency tags are detected within the maximum reading distance of the reading device, Then, the reading device selects the strongest electronic radio frequency tag for reading.
  • the geographical location coding information recorded in the reading device database comprises: a first-order reference five-dimensional coordinates, the five-dimensional coordinates including geographic longitude, latitude, absolute altitude, relative ground height, and positioning time;
  • Relative four-dimensional coordinates of the secondary reference relative to the first-level reference including longitude, latitude, altitude, and time;
  • the reading device calculates the current latitude and longitude and altitude information directly or through a formula according to the position encoding information in the read tag database, and obtains the geographical position information of the tag location.
  • the indoor and outdoor positioning system and the positioning method thereof based on the electronic tag and the database have the advantages that the system of the invention adopts the electronic radio frequency tag and the wireless reading device, and can realize more precise positioning. Can cover areas that are difficult to reach in the prior art;
  • the invention adopts an electronic radio frequency tag, and has low deployment cost and is more suitable for mobile computing.
  • the electronic radio frequency tag used in the invention has only the associated content associated with the location information and is not associated with the user information, and does not actively leak the reading device and the user. Information, which solves the problem of user location and privacy exposure, and improves the security and privacy of users. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic structural view of an indoor and outdoor positioning system based on an electronic tag and a database according to the present invention
  • FIG. 2 is a flow chart of a positioning method of an indoor and outdoor positioning system based on an electronic tag and a database according to the present invention. The best way to implement the invention
  • the indoor and outdoor positioning system based on the electronic tag and the database of the present invention comprises a reading device 1 and a plurality of electronic radio frequency tags 2; the electronic radio frequency tag 2 and the reading device 1 are identified by radio frequency.
  • the reading device 1 adopts a portable carrying reader. If the wireless transmitting frequency of the reading device 1 is a high frequency, the reading distance is 0 to 20 cm; if the wireless transmitting frequency of the reading device 1 is ultra high frequency, Its reading distance is 0 to 2 meters.
  • the reading device 1 is internally provided with a database, and the geographical location information of each electronic RF tag 2 is recorded in the database.
  • the reading device 1 reads the position encoding information in the electronic radio frequency tag 2 by using the radio frequency principle, and queries the geographic information corresponding to the electronic radio frequency tag 2 in the database of the electronic radio frequency tag 2 according to the position encoding information of the electronic radio frequency tag 2, Obtain the current and historical geographic information of the electronic radio frequency tag 2.
  • the information contained in the database of the reading device 1 has all or part of the following information: 1.
  • Five-dimensional coordinates of the first-level reference object, the five-dimensional coordinates include geographic longitude, latitude, absolute altitude, relative ground height, and positioning time;
  • the relative four-dimensional coordinates of the Nth (N> 2) reference object relative to the N-1th reference object, such as the four-dimensional coordinates of the reference point of a room; 5.
  • the absolute coordinates of the electronic radio frequency tag 2 or the Nth level reference object can be simply added by the corresponding items of the coordinates of the first N level reference object.
  • the electronic radio frequency tag 2 employs active or passive electronic radio frequency tags of various frequencies currently available for sale, which can be placed on indoor and outdoor floors and other fixed or moving attachments such as walls.
  • the electronic radio frequency tag 2 is provided with a database in which a specific code is recorded.
  • the basic feature is that each electronic radio frequency tag 2 has a unique code. Since the general tag can store 64 to lk bits, it can be set up to 2 to 64-1024 times. A radio frequency tag 2 with different codes.
  • the geographic location information of the electronic radio frequency tag 2 can be calculated by the reading device 1 directly or by a formula according to the current latitude and longitude and altitude information. For example, suppose that the electronic radio frequency tag 2 can store 32 bits of information in total, which can be divided into every 8 bit-segment, and the longitude, latitude, altitude and other information are stored after encoding, and are decoded according to the prior agreement when reading, if the last step of encoding is Each bit of the binary code is shifted to the left, and each bit needs to be rotated right after decoding.
  • the electronic radio frequency tag 2 is divided into a geographical tag and an object tag.
  • the geography is in an absolutely static state, and the database records the geographical position information of each level; the object tag may move, and when it is positioned, it is in a static state, and if it moves, The database needs to update the geographic information it represents. It can also record or calculate the relative position of the tag or other object tag to provide information for the next application.
  • FIG. 2 a positioning method of an indoor and outdoor positioning system based on an electronic radio frequency tag and a database according to the present invention will be described with reference to FIG. 2:
  • Step 1 Multiple electronic RF tags 2 are pre-arranged in the indoor and shaded outdoor spaces to be positioned according to the requirements of the actual application, and are attached to the surface of the object, placed under the carpet or under the floor, etc.
  • each set point is set with one or more geotags or object tags, which can be active or passive, or can be low frequency, high frequency or ultra high frequency electronic RF tags 2, different Types of electronic radio frequency tags 2 correspond to different read ranges.
  • the electronic radio frequency tag 2 is set, the geographical location information of each electronic radio frequency tag 2 is recorded in the data base;
  • Step 2 The reading device 1 starts to detect the tag, and the reading device 1 is close to a pre-deployed electronic radio frequency tag 2, so that the electronic radio frequency tag 2 enters the maximum reading distance of the reading device 1.
  • the reading device 1 detects the electronic radio frequency tag 2 and its signal strength exceeds a predetermined threshold, it indicates that the electronic radio frequency tag 2 is within the reading distance of the reading device 1, and if there is more than one electronic radio frequency tag within the maximum reading distance. 2 is read, the reading device 1 selects the electronic RF tag 2 with the strongest signal as the tag for positioning;
  • Step 3 Read the device 1 Read the position code information in the electronic RF tag 2 database;
  • Step 3.1 Read the device 1 Send the radio wave to the electronic RF tag 2;
  • Step 3.2 The electronic radio frequency tag 2 senses the radio signal of the reading device 1 and feeds back the position code information of the internal database to the reading device 1;
  • Step 4 The reading device 1 queries the geographic information in the database of the reading device 1 according to the location encoding information in the read tag database, and obtains the geographical location information of the location of the tag, or the reading device 1 can also calculate the current latitude and longitude.
  • the height information is calculated by a formula to obtain the geographical location information of the location of the electronic radio frequency tag 2.
  • the position of the reading device 1 is approximately equal to the position of the electronic radio frequency tag 2, and the maximum error of the geographical location is the maximum reading distance of the reading device 1, for example, when the reading distance of the reading device 1 is 1.5 meters, read
  • the maximum deviation of the device 1 from its own position is 1.5 meters, and by setting the threshold of the signal strength, more accurate positioning can be obtained, and the higher the threshold, the more accurate the positioning;
  • Step 5 Read device 1 to display the geographic information of its current location.
  • the position code information is transmitted from the electronic radio frequency tag 2 to the reading device 1 in one direction, and the electronic radio frequency tag 2 transmits the data through the radio wave transmitted by the inductive reading device 1, and the electronic radio frequency tag 2 cannot be read.
  • the information of the device 1 and its user, the electronic radio frequency tag 2 cannot actively transmit the information related to the reading device 1 outward, as long as the reading device 1 itself does not send its own information, other devices or people cannot pass this. Ways to obtain user information, so that the user's privacy can be protected to a certain extent, and will not reveal privacy due to the technical characteristics of the system itself.

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

Abstract

L'invention porte sur un système de localisation intérieure/extérieure basé sur des étiquettes électroniques et sur une base de données et un procédé de localisation dudit système. Le système comprend : un dispositif mobile de lecture et une pluralité d'étiquettes électroniques radiofréquences (RF), disposées sur l'intérieur/extérieur de repères fixes ou mobiles. Les étiquettes électroniques radiofréquences (RF) communiquent avec le dispositif de lecture par l'intermédiaire d'une transmission radiofréquence (RF) sans fil afin d'obtenir les informations de codage des étiquettes. Ce système adopte des étiquettes électroniques radiofréquences (RF) et des dispositifs de lecture sans fil, les deux étant conçus à haute densité, permettant ainsi de réaliser une localisation plus précise et de couvrir des zones difficiles à atteindre.
PCT/CN2010/002222 2010-01-20 2010-12-30 Système de localisation intérieure/extérieure basé sur des étiquettes électroniques et base de données et procédé de localisation dudit système WO2011088608A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010023030.6 2010-01-20
CN201010023030A CN101793962A (zh) 2010-01-20 2010-01-20 基于电子标签和数据库的室内外定位系统及其定位方法

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WO2011088608A1 true WO2011088608A1 (fr) 2011-07-28

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Cited By (1)

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CN103914670A (zh) * 2013-01-04 2014-07-09 中国移动通信集团公司 一种基于rfid的失物招领方法及装置

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CN101793962A (zh) * 2010-01-20 2010-08-04 张楠 基于电子标签和数据库的室内外定位系统及其定位方法
CN102122447A (zh) * 2011-03-01 2011-07-13 无锡爱维特信息技术有限公司 基于lbs的停车引导系统
CN102752271A (zh) * 2011-04-22 2012-10-24 金锰 一种基于射频信号强度的信息处理方法
CN102867163A (zh) * 2012-08-23 2013-01-09 南京大学 利用移动阅读器探测固定rfid电子标签来实现定位的方法
CN104075706A (zh) * 2013-03-27 2014-10-01 上海位通信息科技有限公司 一种室内空间位置的标识方法
CN103546965B (zh) * 2013-11-04 2016-05-11 重庆邮电大学 一种室内定位鞋及其定位方法
CN103618797A (zh) * 2013-12-04 2014-03-05 柳明福 一种基于标记的室内定位方法
CN103901392B (zh) * 2014-03-03 2017-02-01 联想(北京)有限公司 一种定位方法、定位装置及电子设备
CN104007460B (zh) * 2014-05-30 2017-02-08 北京中电华远科技有限公司 一种消防员单兵定位导航装置
US9697395B2 (en) * 2014-07-11 2017-07-04 The Boeing Company Mobile tag reader portal
CN104408489A (zh) * 2014-11-05 2015-03-11 武汉钢铁(集团)公司 一种大罐定位系统
CN105158726A (zh) * 2015-08-25 2015-12-16 中国人民解放军63921部队 一种动态目标室内定位方法和系统
CN106886802A (zh) * 2015-12-15 2017-06-23 北京京航计算通讯研究所 物品监控方法
CN106324588A (zh) * 2016-08-29 2017-01-11 无锡卓信信息科技股份有限公司 一种智能船舶环境人员自定位系统
CN109282814B (zh) 2017-07-21 2023-08-29 中兴通讯股份有限公司 定位方法、装置和系统、定位系统布设方法、存储介质
CN109324310A (zh) * 2017-08-01 2019-02-12 佛山市顺德区中山大学研究院 一种基于rfid的室内定位系统
CN107835505A (zh) * 2017-10-20 2018-03-23 丁文斌 一种室内外定位技术
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CN110536228A (zh) * 2018-05-24 2019-12-03 鸿富锦精密工业(武汉)有限公司 室内定位装置、室内定位灯具及室内定位系统
CN108646217A (zh) * 2018-07-10 2018-10-12 宜兴启明星物联技术有限公司 一种利用rfid技术实现室内精准定位的系统
CN108917748B (zh) * 2018-09-11 2024-03-19 黄建华 一种nfc位置坐标导航系统及导向方法
CN111356070B (zh) * 2018-12-04 2022-03-11 浙江宇视科技有限公司 定位方法及装置
CN109788434A (zh) * 2018-12-20 2019-05-21 广东云立方互动科技有限公司 一种基于射频识别的室内定位方法及系统
CN110186455A (zh) * 2019-04-24 2019-08-30 北京联合大学 一种盲人跨室内外步行导航系统及方法
CN110146078A (zh) * 2019-06-25 2019-08-20 张收英 一种机器人定位方法和系统
CN111178465A (zh) * 2019-12-20 2020-05-19 国网山东省电力公司莱芜供电公司 基于信息无源存储和有源定位的变电站施工作业人员安全管控系统
CN114624751B (zh) * 2022-01-29 2024-07-26 上海移为通信技术股份有限公司 辅助定位方法、装置、电子设备和存储介质
CN114692792B (zh) * 2022-03-22 2022-11-04 深圳市利和兴股份有限公司 一种拼版射频识别检测平台

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