[특허]Steerable phase array antenna RFID tag locater and tracking system and methods

Steerable phase array antenna RFID tag locater and tracking system and methods 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04Q-005/22 G08B-013/14 G06K-007/08 H04M-001/00 H04B-001/06 H01Q-003/00
출원번호	US-0685166 (2012-11-26)
등록번호	US-8742896 (2014-06-03)
발명자 / 주소	Eloy, Graham P.
출원인 / 주소	RF Controls, LLC
대리인 / 주소	Babcock IP, PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 27

초록 ▼

A system for and method of tracking and locating RFID tags, including where at least one steerable phase array antenna may locate the tags associated with items in three dimensions in real time, through the use of a beam steering unit and controller therewith to control the direction of a beam launc

대표청구항 ▼

1. A method of locating and tracking an RFID tag, the steps comprising: calibrating at least two phase array steerable antennas to optimally align the antennas with known global coordinates;configuring an RFID reader for a working environment; performing a two-dimensional raster scan of a visible area of the working environment with a first antenna; calculating a minimal covering of the visible area with one or more beam areas;defining a set of steering directions for raster scans;using the first antenna to determine if one or more RFID tags are present in the beam areas;estimating an expected location for at least one RFID tag in the beam area; projecting the expected location of the RFID tag into global coordinates; estimating the most probable conjugate pairing (“PGPt1”);calculating a most likely location of the RFID tag's projection in global coordinates relative to a second antenna (“PGPt2”) using an estimated random distribution of RFID tag heights and PGPt1;calculating a projection in global coordinates inverse of PGPt2 so as to yield a most probable steering direction for the second antenna;reading with the other antenna in the direction indicated by a plane point projection of PGPt2;triangulating any RFID tag seen by the other antenna using PGPt1 and PGPt2;triangulating using PGPt1 and PGPt2 if the RFID tag is not seen by the other antenna, as this location is still highly probable as a location for the RFID tag; and repeating these steps for each beam area. 2. A method according to claim 1, further comprising: estimating a time range over which the RFID tag was seen using data collected for the RFID tag;fitting a model to (x,y,z,t) data produced by conjugated raster scans using Iterative Weighted Robust Least Squares Estimation;calculating an RFID tag trajectory over the time interval t using an estimated model of the RFID tag's motion; andtracking the RFID tag's direction using derivatives of the RFID tag trajectory. 3. A method of locating and tracking an RFID tag, comprising the steps of: scanning an operating environment with a first steerable signal beam interrogation signal from a first phase array steerable antenna;storing RFID tag response signals received by the first phase array steerable antenna in a data matrix including a direction vector of the first steerable signal beam when each response signal is received and an identification of the RFID tag providing the response signal;scanning a subset area of an operating environment of a second steerable signal beam interrogation signal from a second phase array steerable antenna;storing RFID tag response signals received by the second phase array steerable antenna in a data matrix including a direction vector of the second steerable signal beam when each response signal is received and an identification of the RFID tag providing the response signal;identifying and flagging any pseudo emitter response signals that are received;the pseudo emitter response signals being any signal within a group of response signals having a common identification that are not the response signal with the shortest time between the interrogation signal launch and reception of the response signal; andtriangulating a response signal origin location for each response signal where the identification is the same. 4. The method of claim 3, wherein the data matrix for each response signal includes a time of reception.

이 특허에 인용된 특허 (27)

Knox,Michael; Bridgelall,Raj; Duron,Mark William; Knadle, Jr.,Richard T.; Bender,James Joseph, Angle of position object location system and method.
상세보기
Lindsay,Jeffrey Dean; Velazquez,Heriberto Flores; Chen,Fung jou; Wagner,Eric Francis, Deactivating a data tag for user privacy or tamper-evident packaging.
상세보기
Bell,Stephen McMorris; VoBa,Son, Finding location and ranging explorer.
상세보기
Dzurko,Thomas A; Osmani,Lulzim; Cogan,Edward; Heidenreich,James, Garage carbon monoxide detector with automatic garage door opening command.
상세보기
Raskar,Ramesh; Beardsley,Paul A.; van Baar,Jeroen; Dietz,Paul H., Interactive wireless tag location and identification system.
상세보기
Glenn McDonald, Method and apparatus for tracking and locating a moveable article.
상세보기
Culpepper,Jerry W.; Smith,Lawrence M.; VanCleave,James P., Method and system for providing tracking services to locate an asset.
상세보기
Bridgelall,Raj; Duron,Mark William; Strzelczyk,Martin J., Multi-resolution object location system and method.
상세보기
Bridgelall,Raj; Duron,Mark William; Strzelczyk,Martin J., Object location system and method using RFID.
상세보기
Kenny,Thomas; Chawla,Raj; Pacsai,Ernest; Szasz,Carl; Gilling,Robert; Marquardt,Thomas, Object tracking.
상세보기
Duncan,Edgar Alan; May,Reed Roberts, Passive RFID transponder/machine-mounted antenna and reader system and method for hidden obstacle detection and avoidance.
상세보기
Hofer, Russell; Bloy, Graham P. A., Phase ranging RFID location system.
상세보기
Pritchett Don Michael (Apalachin NY) Milicic ; Jr. Matthew J. (Newark Valley NY) Greene Edward E. (Barton NY), Phased array antenna for radio frequency identification.
상세보기
Sadr, Ramin, RFID beam forming system.
상세보기
Mohamadi, Farrokh, RFID reader and active tag.
상세보기
Steinberg,Dan Alan, RFID tag reader with tag location indicated by visible light beam.
상세보기
Mendolia,Greg; Kvarnstrand,John; Foo,Bing; du Toit,Cornelius; du Toit,Nicolaas, RFID tag reading system and method.
상세보기
Chang,Donald C. D.; Cha,Alan; Feria,Ying, Rapid user acquisition by a ground-based beamformer.
상세보기
Onderko,John Christian; O'Shea,Michael Donald, Self-adjusting portals with movable data tag readers for improved reading of data tags.
상세보기
Donald K. Belcher ; Ronald J. Hash ; Robert W. Boyd, Spread spectrum baseband modulation of magnetic fields for communications and proximity sensing.
상세보기
Bloy, Graham P., Steerable phase array antenna RFID tag locater and tracking system and methods.
상세보기
Kalliola, Kimmo; Doppler, Klaus; Kauppinen, Hannu; Jantunen, Joni; Ollikainen, Jani; Lehtiniemi, Tuukka; Kainulainen, Antti; Juntunen, Juha O, System and methods for direction finding using a handheld device.
상세보기
Tafas,Triantafyllos P.; Kim,Youngmin, System for automatically locating and manipulating positions on an object.
상세보기
Power, Michael W., System for monitoring patients with Alzheimer's disease or related dementia.
상세보기
Paulsen,Torsten; Meyer,Heinrich; Arman,Farshid, System for tracking object locations using self-tracking tags.
상세보기
Washington,Richard G., Systems and methods for location of objects.
상세보기
Mendolia,Greg; Kvarnstrand,John; Foo,Bing; du Toit,Cornelis; du Toit,Nicolaas, Tracking apparatus, system and method.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Steerable phase array antenna RFID tag locater and tracking system and methods 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (27)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Steerable phase array antenna RFID tag locater and tracking system and methods 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (27)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트