Framework self-unlocking method and framework self-unlocking system of three-axis stabilized platform system

A technology for stabilizing the platform and system framework, applied in the direction of navigation through speed/acceleration measurement, navigation calculation tools, etc., can solve the problem that it is difficult to meet the requirements of large maneuvering movement of the carrier
CN109540134AActive Publication Date: 2019-03-29BEIJING INST OF AEROSPACE CONTROL DEVICES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INST OF AEROSPACE CONTROL DEVICES
Publication Date
2019-03-29

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Abstract

The invention discloses a framework self-unlocking method and a framework self-unlocking system of a three-axis stabilized platform system. Three gyroscopes orthogonally installed on a platform are used for outputting three variables, namely angular rates, wherein the variables are adopted as the input information of a decoupling link. Through the information infusion, three signals which respectively act on a platform body shaft, an inner ring shaft and an outer ring shaft of a shaft end torque motor are outputted. According to the invention, the unlocking method of the three-axis platform inthe frame locking state, and an unlocked frame angle, are given for the first time. Therefore, the stability of the platform body relative to the inertia space is achieved. According to the invention, the frame angle steady-state value at the singular point is given, and it is ensured that the system is still stable and not distributed. According to the method, the rapid decoupling and frame state switching of the three-axis platform in the frame locking state can be realized. The angular movement of a carrier can be effectively isolated, and the stable full-attitude adaptability of the platform body relative to the inertial space is improved.
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Description

technical field

[0001] The invention relates to a self-unlocking method and system for a three-axis stable platform system frame, in particular to a multivariable decoupling method and system for a servo loop of a three-axis platform system, and is mainly used in the fields of aviation and aerospace to realize full-attitude high-precision navigation. Background technique

[0002] Three-axis stabilized platforms have been widely used on vehicles with limited maneuvering attitudes, that is, in vehicles that do not appear at large attitude angles around two axes at the same time during flight. But sometimes, the carrier rocket and the ballistic missile need to maneuver to change orbits; especially tactical missiles, satellites and many military aircraft need to work in full attitude and large maneuvering state. Under such conditions, the platform body is required to remain stable.

[0003] Due to the phenomenon of "frame locking" in the three-axis stable platform system, that ...

Claims

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