Actively stabilized platform system
September 19, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3860931 Stabilized platforms Stabilized antenna system having an acceleration displaceable mass Device for stabilizing and aiming an antenna, more particularly on a ship Stabilized platform for scanning antenna Method of determining the difference in borehole azimuth at successive points Apparatus to maintain arbitrary polarization stabilization of an antenna Antenna mounting with passive stabilization Satellite tracking antenna system Fail detecting system for electromagnetic actuator and fail-safe system for active suspension system incorporating electromagnetic actuator InventorsAssigneeApplicationNo. 716568 filed on 09/19/1996US Classes:701/116, With indication or control to maintain fixed position280/5.507, Lateral and longitudinal vehicle attitude control (e.g., combinations of antidive, antipitch, antiroll, antisquat, antisway, antiyaw, riding, or suspension height)701/50, Construction or agricultural-type vehicle (e.g., crane, forklift)701/70, Indication or control of braking, acceleration, or deceleration701/79Having speed variation responsive means (e.g., acceleration, deceleration)ExaminersPrimary: Cuchlinski, William A. Jr.Assistant: Arthur, Gertrude International ClassG06F 019/00AbstractA stabilized platform useable for various purposes to provide compensation for motion in two axes, such as pitch and roll on a ship. The system operates independently of the object to be stabilized and without the use of gyroscopes by using accelerometers, position sensors and a proportional drive controller augmented with estimation and filtering. The mechanical design reduces size, weight, and power requirements, by providing a system including a stabilized structure; a base structure for supporting the stabilized structure; an enclosure to protect the system from environment elements; first sensors for measuring angular displacements of the stabilized structure with respect to the base structure; and second sensors for measuring acceleration data and acceleration vector angles; and a processor for receiving the angular displacements of the stabilized structure with respect to the base structure from the first sensors and determining an angle of the base structure relative to the stabilized structure, for receiving the acceleration data and acceleration vector angles from the second sensors and determining a direction of local vertical relative to the base structure, and for maintaining the stabilized structure at a desired orientation utilizing the angle of the base structure relative to the stabilized structure and the direction of local vertical relative to the base structure.Other References
Field of SearchConstruction or agricultural-type vehicle (e.g., crane, forklift)Indication or control of braking, acceleration, or deceleration With indication or control to maintain fixed position Having speed variation responsive means (e.g., acceleration, deceleration) Suspension control Antiskid, antilock, or brake slip control Having controlling means adapted to interact with stationary means which describes course of vehicle's travel Member substitutable for wheel type support structure Lateral and longitudinal vehicle attitude control (e.g., combinations of antidive, antipitch, antiroll, antisquat, antisway, antiyaw, riding, or suspension height) Plural distinct modes (i.e., HARD-SOFT) Acceleration or deceleration | |
