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US 8,311,757 B2Granted
Miniaturized smart self-calibration electronic pointing method and system
AssigneeAmerican GNC Corporation
InventorChing-Fang Lin
Life of this patent
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Abstract
An innovative configuration of Miniaturized Smart Self-calibration EPD for mortar applications, as the azimuth/heading and elevation measurement device. This innovative EPD configuration uses only two FOGs or DTG and accelerometers and it is self-contained. This leads to a new EPD implementation that produces a small and light device with lower cost and adequate accuracy for the small dismounted mortar applications.
Claims9
A self-calibration electric pointing device, comprising:
- a sensors/actuator assembly wherein further comprises:
- a 2-axis DTG (Dynamically Tuned Gyro) for sensing the earth rate and said device angular motion;
- a first accelerometer;
- a second accelerometer with said first accelerometer for sensing gravity;
- and
- an indexing device carrying said 2-axis DTG, said first accelerometer, and said second accelerometer for real-time multiple position sensor calibration, wherein said indexing device moves said 2-axis DTG, said first accelerometer, and said second accelerometer when said system is starting or during said system operation for sensor calibration, wherein said sensor calibration is a two-position calibration that said indexing device only needs to stop at two points from an original point to a stop point to complete said sensor calibration;
- a sensor interface circuits;
- and
- a computation platform electrically connected with said sensors/actuator assembly by said sensor interface circuits for processing measurement from said sensors/actuator assembly for pointing.
6 more elements
A self-calibration electric pointing device, comprising:
- a sensors/actuator assembly wherein further comprises:
- a 2-axis DTG (Dynamically Tuned Gyro) for sensing the earth rate and said device angular motion;
- a first accelerometer;
- a second accelerometer with said first accelerometer for sensing gravity;
- and
- an indexing device carrying said 2-axis DTG, said first accelerometer, and said second accelerometer for real-time multiple position sensor calibration, wherein said indexing device moves said 2-axis DTG, said first accelerometer, and said second accelerometer when said system is starting or during said system operation for sensor calibration, wherein said sensor calibration is a multi-position calibration that said indexing device needs to stop at three or more stopped points to complete said sensor calibration;
- a sensor interface circuits;
- and
- a computation platform electrically connected with said sensors/actuator assembly by said sensor interface circuits for processing measurement from said sensors/actuator assembly for pointing.
6 more elements
Dependencies are inferred from the claim text.