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A self-unlocking method and system for a three-axis stable platform system frame

A technology for stabilizing the platform and system framework, applied in navigation calculation tools, navigation through speed/acceleration measurement, etc., can solve problems such as difficult to meet the requirements of large maneuvering movement of the carrier, and achieve fast frame state switching, fast decoupling, and isolation The effect of angular motion

Active Publication Date: 2020-10-23
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology

Existing measures can only meet the carrier with limited maneuvering attitude, and it is difficult to meet the requirements of large maneuvering movement of the carrier

Method used

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  • A self-unlocking method and system for a three-axis stable platform system frame
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  • A self-unlocking method and system for a three-axis stable platform system frame

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Embodiment Construction

[0068] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail.

[0069] The invention discloses a self-unlocking method for a three-axis stable platform system frame, which uses three gyroscopes orthogonally installed on the platform body to output angular rates The three variables are used as the input information of the decoupling link, and after information fusion, three shaft end torque motors that act on the table body shaft, the inner ring shaft and the outer ring shaft are output. The invention provides for the first time the unlocking method of the three-axis platform when the "frame is locked", and the frame angle after unlocking, and realizes the stability of the platform body relative to the inertial space. The present invention provides the frame angular stability value at the singular point, ensuring that the system is still stable and not divergent. This method realizes the rapid decoupling and...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/18G01C21/20
CPCG01C21/18G01C21/20
Inventor 魏宗康段宇鹏
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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