A joint objective function multi-propeller attitude angle acquisition method based on visual projection scale factor set

A scale factor and objective function technology, applied in the interpretation of photos, complex mathematical operations, camera devices, etc., can solve problems such as poor flexibility, difficult measurement accuracy, and increased measurement error
CN111504276BActive Publication Date: 2022-04-19哈尔滨博觉科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
哈尔滨博觉科技有限公司
Publication Date
2022-04-19

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Abstract

The invention discloses a method for acquiring attitude angles of multi-thrusters with a joint objective function based on visual projection scale factor sets. Step 1: Establish the coordinate system of the multi-vehicle propeller; Step 2: The projection scale factor set is γ={γ 1 ,γ 2 ,...,γ n}; Step 3: Optimizing the projection scale factor set, establishing multi-propeller attitude angles to obtain the minimum objective function; Step 4: Performing antisymmetric matrix deformation processing on the minimum objective function in Step 3, and solving the form through multivariate polynomial equations; Step 5: Step 4 is further processed by Kronecker product sum matrix vectorization function; Step 6: Therefore, the minimum objective function can finally be expressed as a polynomial. The area array CCD camera realizes high-speed acquisition of multi-thruster images, avoids the limitation of sensor response speed in traditional contact measurement, and has a fast response speed. The high-speed camera can be quickly arranged, which is convenient for implementation and is not limited by space.
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Description

technical field

[0001] The invention belongs to the technical field of aircraft ground simulation testing, and in particular relates to a joint objective function multi-propeller attitude angle acquisition method based on a visual projection scale factor set. Background technique

[0002] Accurate control of the propeller attitude angle is the basis for the stable and safe operation of the aircraft. The accuracy of the propeller attitude angle acquisition is directly related to the accuracy and reliability of the aircraft control performance; The influence of factors such as structural deformation and other factors will lead to a certain deviation between the actual propeller pose change and the control input data. Therefore, the accurate measurement technology of propeller pose is one of the main factors that restrict the engineering application of aircraft engines.

[0003] Judging from the existing literature and patent research, there are not too many research results on...

Claims

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