[특허]Method and device for measuring the position and orientation of objects in the presence of interfering metals

[미국특허] Method and device for measuring the position and orientation of objects in the presence of interfering metals 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-005/04
출원번호	US-0084831 (1993-06-29)
발명자 / 주소	Elhardt Scott T. (Maple Grove MN)
출원인 / 주소	Honeywell, Inc. (Minneapolis MN 02)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

A method of measuring the position and orientation of an object is disclosed in conjunction with an apparatus to achieve this method. The method and apparatus reduce the metal effects caused by metal objects which are in close proximity to a magnetic field generator. The metal effects are reduced by utilizing a magnetic field generator which creates a rotating magnetic field vector and then measuring the time required for that magnetic field vector to travel between a known reference point and the sensor whose position is being measured. By keeping the frequency of the rotating magnetic field vector constant and measuring the time required for this magnetic field vector to travel the previously mentioned distance, an angle between a reference axis and a vector directed toward the sensor can be determined. Once appropriate angles are measured, calculations can be undergone to determine the position of the sensor. Furthermore, by utilizing a plurality of sensors the orientation of the sensors with respect to one another can be determined.

대표청구항 ▼

A sensing device for determining the position and orientation of an object in a predefined space, comprising: a magnetic field generation means for generating a magnetic field having a rotating field vector, the field generation means situated in the predefined space at a known location and in a known orientation; a first sensor means for sensing the rotating field vector and generating a signal in response to the rotating field vector, the first sensor means attached to the object whose position is being sensed; a second sensor means for sensing the rotating field vector and generating a signal in response to the rotating field vector, the second sensor means attached to the object whose position is being sensed; a timing means attached to the transmitting means and the first sensor means for sensing a first time period in which the rotating field vector travels between a reference point and the first sensor means, the timing means being further attached to the second sensor means for measuring a second time period in which the rotating magnetic field vector travels between the reference point and the second sensor means; and a computing means for computing the position of the first sensor means based upon the first time period and for computing the position of the second sensor means based upon the second time period, the computing means for further computing the orientation of the object based upon the position of the first sensor means and the second sensor means.

이 특허를 인용한 특허 (35) 인용/피인용 타임라인 분석

Ette, Bernd; Holldack, Bernhard, Coil arrangement for generating a rotating electromagnetic field and positioning system for determining a position of an identification transmitter.
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Blood Ernest B. (Burlington VT), Device for measuring position and orientation using non-dipole magnet IC fields.
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Ashe Westley, Eddy current error-reduced AC magnetic position measurement system.
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Sontag, Yves, Electromagnetic emitter emitting simultaneously along three orthogonal axes to detect object position and orientation.
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Averbuch, Dorian, Feature-based registration method.
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Averbuch, Dorian, Feature-based registration method.
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Averbuch, Dorian, Feature-based registration method.
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Averbuch, Dorian, Feature-based registration method.
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Averbuch, Dorian; Zur, Oded; Weingarten, Oren, Hybrid registration method.
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Averbuch, Dorian; Zur, Oded; Weingarten, Oren, Hybrid registration method.
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Averbuch, Dorian; Zur, Oded; Weingarten, Oren, Hybrid registration method.
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Gilboa, Pinhas; Blecher, Danny, Intrabody navigation system for medical applications.
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Gilboa, Pinhas; Blecher, Danny, Intrabody navigation system for medical applications.
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Zur, Oded, Magnetic interference detection system and method.
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Nelson, Carl V.; Jacobs, Bryan C., Magnetic sensor system for fast-response, high resolution, high accuracy, three-dimensional position measurements.
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Lewandowski Ronald J. ; Wier Emmet J., Metal immune magnetic tracker.
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Vorobiev, Michael Yu.; Zhodzishsky, Mark I.; Veitsel, Andrew V.; Veitsel, Victor A.; Zhdanov, Alexey V.; Pushkarev, Sergey N., Method and apparatus for multipath mitigation using antenna array.
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Viswanathan, Raju R., Method and apparatus for refinably accurate localization of devices and instruments in scattering environments.
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Benke,Oliver; Betzler,Boas; Lumpp,Thomas; Pasch,Eberhard, Method and apparatus for retrieving information about an object of interest to an observer.
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Ette, Bernd; Holldack, Bernhard, Method for determining a position of a receiver and positioning system for a receiver.
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Larson, Brent D.; Suddreth, John G.; Cupero, Frank, Methods and systems for operating avionic systems based on user gestures.
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John F. Ackerman ; Erik H. Lange, Multiplexed driver for a magnetic transmitter.
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Gilboa, Pinhas; Blecher, Danny, Navigable catheter.
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Mark R. Schneider ; Christopher D. Conover, Position and orientation measuring with magnetic fields.
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Wu, Chunwu, System and method for electromagnetic navigation in the vicinity of a metal object.
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Schneider, Mark R., System and method for measuring position and orientation using distortion-compensated magnetic fields.
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Schneider,Mark R., System and method for measuring position and orientation using distortion-compensated magnetic fields.
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Whitefield, II, Charles David, System and method for monitoring rotating device.
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Whitefield, II, Charles David, Systems and methods for use in monitoring operation of a rotating device.
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Whitefield, II, Charles David, Systems and methods for use in monitoring operation of a rotating device.
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Skelton, Dennis M.; Davis, Jon P.; Miesel, Keith A.; Denison, Timothy J., Therapy system including multiple posture sensors.
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Skelton, Dennis M.; Davis, Jon P.; Miesel, Keith A.; Denison, Timothy J., Therapy system including multiple posture sensors.
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Skelton, Dennis M.; Davis, Jon P.; Miesel, Keith A.; Denison, Timothy J., Therapy system including multiple posture sensors.
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Bashkirov, Sergey; Matsukawa, Takeo; Stafford, Jeffrey R., Variable magnetic field-based position.
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Gilboa Pinhas,ILX, Wireless six-degree-of-freedom locator.
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A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method and device for measuring the position and orientation of objects in the presence of interfering metals 원문보기