Method and system for integrated inertial stabilization mechanism
AssigneeAmerican GNC Corporation
InventorChing-Fang Lin
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Abstract
The present invention provides a method and system for an innovative design of the automatic stabilization and pointing control of a device based on the MEMS technology, which is small enough and has acceptable accuracy to be integrated into many application systems, such as, laser pointing systems, telescopic systems, imaging systems, and optical communication systems. The stabilization mechanism configuration design is based on utilization of AGNC commercial products, the coremicro IMU and the coremicro AHRS/INS/GPS Integration Unit. The coremicro AHRS/INS/GPS Integration Unit is used as the processing platform core for the design of the MEMS coremicro IMU based stabilization mechanism.
Claims5
A method for Automatic Pointing Stabilization and Aiming Control Device, comprising the steps of:
- (a) receiving platform rotation commands of a device using a desired pointing direction of said device and a current attitude measurement of said device;
- (b) combining computed platform rotation commands with a predetermined type of feedback signals, said signal types being one of angle position feedback signal and angular and acceleration feedback signal;
- (c) computing an automatic stabilization and positioning control signal by a servo controller;
- (d) amplifying servo controller signals;
- (e) sending said amplified servo controller signals to an actuator;
- (f) converting electric signals to torques and said torque exerted on a platform body to eliminate interference to said platform body;
- and
- (g) sensing a motion of said platform body and feedback a sensor signal to said servo controller.
An automatic stabilization and pointing control system for a device, comprising:
- an integration unit determining current attitude and attitude rate measurements of said device,
- a platform controller receiving platform rotation commands of said device using a desired pointing direction of said device and said current attitude measurements of said device;
- and
- an amplifier, which comprises:
- a motor controller circuits module producing a suite of PWM control pulses according to data or signals from said platform controller;
- a PWM amplifier to drive a gimbal motor in different operation modes, wherein said PWM control pulses control said PWM amplifier, wherein said PWM amplifier comprises a set of high speed high power semi-conductor switches, wherein under the control of pulses from said motor controller circuits, said PWM amplifier generates PWM voltages and currents to said motors;
- and
- a DC power supply, wherein an electric power is from said DC power supply, which rectifies an AC to produce a DC power.
Dependencies are inferred from the claim text.