Device for use with a portable inertial navigation system (PINS) and method for processing PINS signals
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01C-021/16
출원번호
US-0078738
(2002-02-19)
발명자
/ 주소
Swope, Charles B.
Tealdi, Daniel A.
Koskan, Patrick Douglas
출원인 / 주소
Motorola, Inc.
대리인 / 주소
Doutre, Barbara R.
인용정보
피인용 횟수 :
52인용 특허 :
7
초록▼
A first device (104) receives a first set of data from an inertial navigational device (100). The first set of data comprises at least one of sensor data, motion data, and location data, and is real-time output from the inertial navigational device (100). The first device (104) also receives a secon
A first device (104) receives a first set of data from an inertial navigational device (100). The first set of data comprises at least one of sensor data, motion data, and location data, and is real-time output from the inertial navigational device (100). The first device (104) also receives a second set of data from a secondary source. The second set of data also comprises at least one of sensor data, motion data, and location data. The first device (104) generates an update message based on comparing the first set of data against the second set of data in order to improve location accuracy of the inertial navigational device (100). Optionally, the first device (104) can transmit the update message to the inertial navigational device (100).
대표청구항▼
A first device (104) receives a first set of data from an inertial navigational device (100). The first set of data comprises at least one of sensor data, motion data, and location data, and is real-time output from the inertial navigational device (100). The first device (104) also receives a secon
A first device (104) receives a first set of data from an inertial navigational device (100). The first set of data comprises at least one of sensor data, motion data, and location data, and is real-time output from the inertial navigational device (100). The first device (104) also receives a second set of data from a secondary source. The second set of data also comprises at least one of sensor data, motion data, and location data. The first device (104) generates an update message based on comparing the first set of data against the second set of data in order to improve location accuracy of the inertial navigational device (100). Optionally, the first device (104) can transmit the update message to the inertial navigational device (100). in order from the smallest to the largest numerical value, and calculating the slope of the sequentialized fractional values. 4. The method of claim 3, wherein the slope is calculated by a least squares straight line method. 5. The method of claim 1, wherein said process control parameter is the length of time the rapid thermal process is carried out. 6. The method of claim 2, wherein step (B) is further performed by weighting at least certain of said fractions. 7. The method of claim 1, wherein step (D) includes periodically determining the changes in the level of power applied to the said heating elements in each of the zones. 8. The method of claim 3, including the steps of: storing said set of statistical data in a programmed computer, and inputting said slope to said computer, and wherein said programmed computer compares said slope to said set of statistical data. 9. A method of detecting and controlling in-situ faults occurring in a rapid thermal process system of the type employing a multiplicity of heating elements spatially arranged in a plurality of zones, comprising the steps of: (A) determining the power applied to the heating elements in each of the zones; (B) determining the total power applied to all of the heating elements in all of said zones; (C) forming a plurality of fractions respectively associated with said plurality of said zones, wherein the numerator of each of said fractions represents the power applied to the associated zone, and the denominator represents the power applied to the heating elements in all of the zones; (D) arranging said fractions in a desired sequence; (E) determining the slope of a line representing the values of the sequentially arranged fractions; (F) comparing said slope with a reference slope; and (G) changing at least one parameter for controlling said process based on the comparison performed in Step (F). 10. The method of claim 9, wherein the sequence in step D is from the smallest value to the largest value. 11. The method of claim 9, wherein step (E) is performed by a least squares calculated method. 12. The method of claim 9, said reference slope is related to a set of historical statistics forming a part of a statistical process control system. 13. The method of claim 9, wherein said one parameter comprises the time period over while the process is carried out. 14. The method of claim 9, including the step of terminating the process when the comparison performed in step (F) indicates the occurrence of fault.
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