Remote positioning
First Claim
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1. A method for determining a horizontal distance between a first location and a target point located approximately at ground level, the method comprising:
- at the first location;
aiming the handheld measurement device at the target point; and
determining a tilt of the handheld measurement device while aiming the handheld measurement device at the target point, the tilt determined using one or more tilt sensors;
thereaftercomputing the horizontal distance between the first location and the target point using the tilt of the handheld measurement device and a fixed height of the handheld measurement device above the ground, wherein the horizontal distance between the first location and the target point is computed without measuring a distance between the handheld measurement device and the target point and without measuring a height of the handheld measurement device at the first location.
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Abstract
A method for determining a distance to a target point located approximately at ground level includes aiming a measurement device at the target point, determining a tilt of the measurement device using tilt sensors, and determining a height of the measurement device above the ground. A position of the target point may be determined using the tilt and height of the measurement device, a position of the measurement device, and a bearing to the target point.
10 Citations
16 Claims
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1. A method for determining a horizontal distance between a first location and a target point located approximately at ground level, the method comprising:
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at the first location; aiming the handheld measurement device at the target point; and determining a tilt of the handheld measurement device while aiming the handheld measurement device at the target point, the tilt determined using one or more tilt sensors;
thereaftercomputing the horizontal distance between the first location and the target point using the tilt of the handheld measurement device and a fixed height of the handheld measurement device above the ground, wherein the horizontal distance between the first location and the target point is computed without measuring a distance between the handheld measurement device and the target point and without measuring a height of the handheld measurement device at the first location. - View Dependent Claims (2, 3, 4, 5)
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6. A method for determining a position of a target point located approximately at ground level, the method comprising:
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at a first location; aiming a handheld measurement device at the target point; determining a tilt of the handheld measurement device while aiming the handheld measurement device at the target point, the tilt determined using one or more tilt sensors; determining a position of the handheld measurement device; and determining a bearing of the handheld measurement device; computing a horizontal distance between the first location and the target point using the tilt of the handheld measurement device and a fixed height of the handheld measurement device above the ground; and computing the position of the target point using the position of the handheld measurement device, the bearing of the handheld measurement device, and the horizontal distance between the first location and the target point, wherein the horizontal distance between the first location and the target point is computed without measuring a distance between the handheld measurement device and the target point and without measuring a height of the handheld measurement device at the first location. - View Dependent Claims (7, 8, 9, 10)
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11. A handheld apparatus for determining a horizontal distance between a first location and a target point located approximately at ground level, comprising:
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an aiming device configured to align the handheld apparatus with the target point; one or more tilt sensors configured to determine a tilt of the handheld apparatus while aligned with the target point; and a first computing module configured to compute a horizontal distance between the first location and the target point using the tilt of the handheld apparatus and a fixed height of the handheld apparatus above the ground, wherein the horizontal distance between the first location and the target point is computed without using a measured distance between the handheld apparatus and the target point and without using a measured height of the handheld apparatus at the first location. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification