IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0161044
(2005-07-20)
|
등록번호 |
US-7433021
(2008-10-07)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
19 |
초록
▼
A measurement system with a minimum of 2 sensors that identifies precise locations of remote objects. The sensors measure the elevation and azimuth angles to the target using the electro-magnetic radiation that is either intentionally or incidentally reflected off of the object. Given the known dist
A measurement system with a minimum of 2 sensors that identifies precise locations of remote objects. The sensors measure the elevation and azimuth angles to the target using the electro-magnetic radiation that is either intentionally or incidentally reflected off of the object. Given the known distance between the sensors, the system are able to calculate the exact X-Y-Z coordinates of the object using a modified type of triangulation. In the case of moving targets, this data is used to determine target origin and destination. In the case of stationary targets, the data is used to determine exact location of target and for navigation to or around the stationary target.
대표청구항
▼
What is claimed is: 1. A sensor system for tracking and navigation, comprising: two sensors, each sensor comprising a two-dimensional plurality of discrete detection pixels; for each said sensor, computerized data associating each said detection pixel thereof with a predetermined azimuth angle and
What is claimed is: 1. A sensor system for tracking and navigation, comprising: two sensors, each sensor comprising a two-dimensional plurality of discrete detection pixels; for each said sensor, computerized data associating each said detection pixel thereof with a predetermined azimuth angle and a predetermined elevation angle; and a computerized device for automatically determining azimuth angles and elevation angles of a target or beacon simultaneously detected by each of said sensors, for each of said sensors, based on said computerized data; wherein: for of each of said sensors, more than one of the detection pixels at the same time, is capable of detecting a target or beacon. 2. The system of claim 1, further comprising: said computerized device for further calculating a three-dimensional position of said target or beacon, based on said azimuth angles and said elevation angles of said target or beacon for each of said sensors, and based on a known distance and relative orientation between each of said sensors. 3. The system of claim 1, wherein: said computerized data is established for each sensor from detecting electromagnetic radiation at known azimuth and elevation angles with said sensor or an equivalent sensor and determining which pixels are activated thereby. 4. The system of claim 3, wherein: said computerized data, for each sensor, associates the activated detection pixels with said known azimuth and elevation angles. 5. The system of claim 1, wherein: said azimuth angle and elevation angle are automatically determined for each sensor to be the azimuth angle and elevation angle associated with said given pixel by said computerized data. 6. The system of claim 1, said computerized data comprising a computerized lookup table for each sensor, associating each said detection pixel with said predetermined azimuth angle and said predetermined elevation angle. 7. The system of claim 1, further comprising: at least one additional sensor substantially equivalent to each of said two sensors and comprising substantially equivalent computerized data therefor; and said computerized device for further calculating said three-dimensional position of said target or beacon, based on azimuth angles and elevation angles of said target or beacon for a selected pair of said sensors, and based on a known distance and relative orientation between said selected pair of said sensors. 8. The system of claim 7, further comprising said computerized device for further using said azimuth angles and elevation angles from less than all of said sensors, when one or both of said azimuth angles and elevation angles are undefined. 9. The system of claim 1, further comprising: said computerized device for further calculating an origin of said target based on calculations of said three-dimensional position at at least two distinct times. 10. The system of claim 1, further comprising: said computerized device for further calculating a destination of said target based on calculations of said three-dimensional position at at least two distinct times. 11. A sensor system for tracking and navigation, comprising: a sensor comprising a two-dimensional plurality of discrete detection pixels; and computerized data associating each said detection pixel with a predetermined azimuth angle and a predetermined elevation angle; wherein: when a target or beacon is detected by a given pixel of said sensor, an azimuth angle and an elevation angle of said target or beacon is automatically determined from said computerized data; and more than one of the detection pixels at the same time, is capable of detecting a target or beacon. 12. The system of claim 11, wherein: said computerized data is established from detecting electro-magnetic radiation at known azimuth and elevation angles with said sensor or an equivalent sensor and determining which pixels are activated thereby. 13. The system of claim 11, wherein: said azimuth angle and elevation angle are automatically determined to be the azimuth angle and elevation angle associated with said given pixel by said computerized data. 14. The system of claim 11, said computerized data comprising a computerized lookup table associating each said detection pixel with said predetermined azimuth angle and said predetermined elevation angle. 15. A method for tracking and navigation, comprising: placing two sensors at a known distance and with a known orientation relative to one another, each sensor comprising a two-dimensional plurality of discrete detection pixels; simultaneously detecting a target or beacon with each of said sensors; and automatically determining azimuth angles and elevation angles of a target or beacon simultaneously detected by each of said sensors, for each of said sensors, based on which detection pixels of each sensor are activated by detecting said target or beacon, using computerized data associating each said detection pixel thereof, for each sensor, with a predetermined azimuth angle and a predetermined elevation angle; wherein: for of each of said sensors, more than one of the detection pixels at the same time, is capable of detecting a target or beacon. 16. The method of claim 15, further comprising: calculating a three-dimensional position of said target or beacon, based on said azimuth angles and said elevation angles of said target or beacon for each of said sensors, and based on said known distance and relative orientation between each of said sensors. 17. The method of claim 15, further comprising: establishing said computerized data for each sensor by detecting electromagnetic radiation at known azimuth and elevation angles with said sensor or an equivalent sensor and determining which pixels are activated thereby. 18. The method of claim 17, further comprising: for each sensor, associating the activated detection pixels with said known azimuth and elevation angles. 19. The method of claim 15, further comprising: automatically determining said azimuth angle and elevation angle for each sensor to be the azimuth angle and elevation angle associated with said given pixel by said computerized data. 20. The method of claim 15, further comprising: for each sensor, associating each said detection pixel with said predetermined azimuth angle and said predetermined elevation angle, using a computerized lookup table. 21. The method of claim 15, further comprising: placing at least one additional sensor substantially equivalent to each of said two sensors and comprising substantially equivalent computerized data therefor, at a known distance and with a known orientation relative to said two sensors; and calculating said three-dimensional position of said target or beacon, based on azimuth angles and elevation angles of said target or beacon for a selected pair of said sensors, and based on the known distance and relative orientation between said selected pair of said sensors. 22. The method of claim 21, further comprising: using said azimuth angles and elevation angles from less than all of said sensors, when one or both of said azimuth angles and elevation angles are undefined. 23. The method of claim 15, further comprising: calculating an origin of said target based on calculations of said three-dimensional position at at least two distinct times. 24. The method of claim 15, further comprising: calculating a destination of said target based on calculations of said three-dimensional position at at least two distinct times. 25. A method for tracking and navigation, comprising: associating each detection pixel of a sensor comprising a two-dimensional plurality of discrete detection pixels, with a predetermined azimuth angle and a predetermined elevation angle; wherein: when a target or beacon is detected by a given pixel of said sensor, automatically determining an azimuth angle and an elevation angle of said target or beacon from said computerized data; and more than one of the detection pixels at the same time, is capable of detecting a target or beacon. 26. The method of claim 25, further comprising: associating said each detection pixel with said azimuth angle and elevation angle by detecting electromagnetic radiation at known azimuth and elevation angles with said sensor or an equivalent sensor and determining which pixels are activated thereby. 27. The method of claim 25, further comprising: automatically determining said azimuth angle and elevation angle from the azimuth angle and elevation angle associated with said given pixel by said computerized data. 28. The system of claim 25, said automatically determining further comprising automatically looking up said predetermined azimuth angle and said predetermined elevation angle associated with said given pixel, in a computerized lookup table.
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