Handheld coordinate reference system
First Claim
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1. A method of determining a first position of interest, comprising the steps of:
- determining a reference position of reference unit;
moving the reference unit from the reference position to the first position and inertially measuring a displacement of the reference unit while the reference unit is unilluminated by an illuminator; and
determining the first position from the reference position, illuminator energy reflected from the reference unit, and the inertially measured displacement of the reference unit.
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Abstract
A method and apparatus for determining a spatial position of interest in an assembly is disclosed. In one embodiment, the method comprises the steps of determining a reference position of reference unit; moving the reference unit from the reference position to the first spatial position; inertially measuring a displacement of the reference unit while the reference unit is unilluminated by an illuminator; and determining the first position from the reference position, illuminator energy reflected from the reference unit, and the inertially measured displacement of the reference unit.
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Citations
26 Claims
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1. A method of determining a first position of interest, comprising the steps of:
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determining a reference position of reference unit;
moving the reference unit from the reference position to the first position and inertially measuring a displacement of the reference unit while the reference unit is unilluminated by an illuminator; and
determining the first position from the reference position, illuminator energy reflected from the reference unit, and the inertially measured displacement of the reference unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An reference unit for determining a first spatial position, comprising:
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an inertial measurement unit;
a reflector for reflecting energy from an illuminator; and
a communications interface communicatively coupled to the inertial measurement unit, for communicating information between the reference unit and a processor controlling the illuminator. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for determining a first spatial position of a component in an assembly opaque to energy from an illuminator, comprising:
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means for determining a reference position of reference unit;
means for inertially measuring a displacement of the reference unit while the reference unit is moved from the reference position to the first spatial position and the reference unit is unilluminated by an illuminator; and
determining the first position from the reference position, illuminator energy reflected from the reference unit, and the inertially measured displacement of the reference unit. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification