Method and apparatus for calibrating an accelerometer-based navigation system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01C-017/38
G01P-021/00
G06F-019/00
출원번호
US-0735591
(2000-12-12)
발명자
/ 주소
Berstis, Viktors
Schwerdtfeger, Richard Scott
Smith, Jr., Newton James
출원인 / 주소
International Business Machines Corporation
대리인 / 주소
Yee, Duke W.Dawkins, Marilyn SmithTkacs, Stephen R.
인용정보
피인용 횟수 :
25인용 특허 :
19
초록▼
A navigation device includes accelerometers for measuring movement. Given a beginning location and orientation, the device determines current location and orientation based on the information from the accelerometers. A user enters a list of items, such as a shopping list, into the device and the dev
A navigation device includes accelerometers for measuring movement. Given a beginning location and orientation, the device determines current location and orientation based on the information from the accelerometers. A user enters a list of items, such as a shopping list, into the device and the device determines a path to the items. The device then generates and presents directions for navigation. The path may be calculated to avoid hazards; such as shelves being stocked, congested checkout lines, and spilled items. The item list may be loaded into the device, using the bar code reader, optical character recognition, or through a store computer or the Internet. Planes of infrared beams are arranged within the environment such that a navigation device is likely to or must pass through a plane. A path may be computed to ensure that the navigation device passes through an IR plane. The navigation device has a plurality of IR sensors arranged in a tetrahedron. As the device passes through an IR plane, the device receives signals from the sensors. Given the order and timing of the signals and a location of the IR plane, the device performs a calibration. The device is calibrated without requiring the user to place the device in a cradle.
대표청구항▼
A navigation device includes accelerometers for measuring movement. Given a beginning location and orientation, the device determines current location and orientation based on the information from the accelerometers. A user enters a list of items, such as a shopping list, into the device and the dev
A navigation device includes accelerometers for measuring movement. Given a beginning location and orientation, the device determines current location and orientation based on the information from the accelerometers. A user enters a list of items, such as a shopping list, into the device and the device determines a path to the items. The device then generates and presents directions for navigation. The path may be calculated to avoid hazards; such as shelves being stocked, congested checkout lines, and spilled items. The item list may be loaded into the device, using the bar code reader, optical character recognition, or through a store computer or the Internet. Planes of infrared beams are arranged within the environment such that a navigation device is likely to or must pass through a plane. A path may be computed to ensure that the navigation device passes through an IR plane. The navigation device has a plurality of IR sensors arranged in a tetrahedron. As the device passes through an IR plane, the device receives signals from the sensors. Given the order and timing of the signals and a location of the IR plane, the device performs a calibration. The device is calibrated without requiring the user to place the device in a cradle. of: running a first set of instructions for performing preliminary setup for the first irrigation cycle, and running a second set of instructions for initiating irrigation, for tracking a wetting front depth and for stopping irrigation. 24. The method according to claim 20, wherein running the computer program comprises the steps of: running a third set of instructions for deriving information from a preceding irrigation cycle and for adapting instructions for application to a next irrigation cycle, and running a fourth set of instructions for beginning the next irrigation cycle and returning to the second set of instructions. 25. The method according to the claim 23, wherein the first set of instructions further comprises the steps of: using a first initial wetting front depth instruction for the first irrigation cycle i=1, for calculating a first initial wetting front depth ZIi,to stop irrigation, by the equation ZIi=Gi*ZFi,where ZFis a final wetting front depth input value selected for optimal irrigation. 26. The method according to claim 23, wherein the second set of instructions comprises the steps of: detecting an ir
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (19)
Belt Steve ; Pate John ; Hudgins Greg, Automatic IR port detection and switching.
Kadonoff Mark B. (Somerville MA) Maddox James F. (Arlington MA) George ; II Robert W. (Windham NH) Benayad-Cherif Faycal E. (Somerville MA), Beacon navigation system and method for guiding a vehicle.
Pitchford Gary (Phoenix AZ) Pitchford Steve (Mesa AZ) Hyde Paul (Pleasant Hills CA), Personal multi-purpose navigational apparatus and method for operation thereof.
Olsen Steven L. (Salt Lake City UT) Petrick William R. (Salt Lake City UT) Stodt John A. (Salt Lake City UT), Survey system and method for real time collection and processing of geophysicals data using signals from a global positi.
Beuk Leonardus G.M.,NLX ; Kohler Hans E.P.,NLX ; Jansen Robertus C.J.,NLX ; Van Gerwen Adrianus H.,NLX, Wireless communication system for reliable communication between a group of apparatuses.
Cox, Keith; Kapoor, Gaurav; Culbert, Michael, Method and apparatus for detecting conditions of a peripheral device including motion, and determining/predicting temperature(S) wherein at least one temperature is weighted based on detected conditions.
Wehrenberg, Paul J.; Leiba, Aaron; Williams, Richard C.; Falkenburg, David R.; Gerbarg, Louis G.; Chang, Ray L., Methods and apparatuses for operating a portable device based on an accelerometer.
Wehrenberg, Paul J.; Leiba, Aaron; Williams, Richard C.; Falkenburg, David R.; Gerbarg, Louis G.; Chang, Ray L., Methods and apparatuses for operating a portable device based on an accelerometer.
Wehrenberg, Paul J.; Leiba, Aaron; Williams, Richard C.; Falkenburg, David R.; Gerbarg, Louis G.; Chang, Ray L., Methods and apparatuses for operating a portable device based on an accelerometer.
Wehrenberg, Paul J.; Leiba, Aaron; Williams, Richard C.; Falkenburg, David R.; Gerbarg, Louis G.; Chang, Ray L., Methods and apparatuses for operating a portable device based on an accelerometer.
Wehrenberg, Paul J.; Leiba, Aaron; Williams, Richard C.; Falkenburg, David R.; Gerbarg, Louis G.; Chang, Ray L., Methods and apparatuses for operating a portable device based on an accelerometer.
Yu, Seung-dong; Chang, Woo-Yong; Park, Se-jun; Moon, Min-jeong; Park, Soo-hong; Jeong, Jin-guk, User terminal, method for providing position and method for guiding route thereof.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.