POSITION DETERMINING SYSTEM
First Claim
1. A position determining system for determining a position of an object (2), the position determining system (1;
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101;
201) comprising;
a first position detection unit (5;
105;
205) comprising a sending and receiving unit (3;
103, 114;
203, 214, 216, 217) for transferring radiation (6, 7;
106, 107;
206, 207) between the object (2) and a transfer position being known relative to a reference position, and a first position determining unit (4;
104;
204) for determining a first position of the object (2) relative to the reference position based on the transferred radiation (6, 7;
106, 107;
206, 207),a second position detection unit (35) comprising an accelerometer (8) for determining an acceleration of the object (2), and a second position determining unit (9) for determining a second position of the object (2) relative to the reference position based on the determined acceleration and the determined first position,an output unit (12) for outputting at least one of the first position and the second position.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to position determining system (201) for determining a position of an object (2). A first position detection unit (205) detects a first position of the object (2) based on radiation transferred between the object (2) and transfer positions being known relative to a reference position by a sending and receiving unit (203, 214, 216, 217). A second position detection unit (35) detects a second position based on an acceleration of the object (2) and the determined first position, wherein an output unit (12) outputs at least one of the first position and the second position. If the transfer of radiation is interrupted, the second position can be output by the output unit. Moreover, the first position can be used as an initial value for determining the second position or to update the second position. This improves the quality of determining the position of the object.
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Citations
15 Claims
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1. A position determining system for determining a position of an object (2), the position determining system (1;
-
101;
201) comprising;a first position detection unit (5;
105;
205) comprising a sending and receiving unit (3;
103, 114;
203, 214, 216, 217) for transferring radiation (6, 7;
106, 107;
206, 207) between the object (2) and a transfer position being known relative to a reference position, and a first position determining unit (4;
104;
204) for determining a first position of the object (2) relative to the reference position based on the transferred radiation (6, 7;
106, 107;
206, 207),a second position detection unit (35) comprising an accelerometer (8) for determining an acceleration of the object (2), and a second position determining unit (9) for determining a second position of the object (2) relative to the reference position based on the determined acceleration and the determined first position, an output unit (12) for outputting at least one of the first position and the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15)
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101;
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12. A position determining method for determining a position of an object (2), the position determining method comprising the steps of:
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detecting a first position of the object (2) by a first position detection unit (5; 105;
205) comprising a sending and receiving unit (3;
103, 114;
203, 214, 216, 217) and a first position determination unit (4;
104;
204), wherein radiation (6;
106;
206) is transferred between the object (2) and a transfer position being known relative to a reference position by the sending and receiving unit (3;
103, 114;
203, 214, 216, 217) and wherein the first position of the object (2) relative to the reference position is determined based on the transferred radiation (6, 7;
106, 107;
206, 207) by the first position determination unit (4;
104;
204),detecting a second position of the object (2) by a second position detection unit comprising an accelerometer (8) and a second position determining unit (9), wherein an acceleration of the object (2) is determined by the accelerometer (8), and wherein a second position of the object (2) relative to the reference position is determined based on the determined acceleration and the determined first position by the second position determining unit (9), outputting at least one of the first position and the second position by an output unit (12).
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13. An imaging method for imaging an object (33), the imaging method comprising the steps of determining the position of the object (33) relative to the imaging system (26) and of imaging the object (33).
Specification