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An overhead control method for two-frame platforms of airborne photoelectric reconnaissance equipment

A technology of photoelectric reconnaissance and control methods, applied in directions such as navigation through speed/acceleration measurement, which can solve problems such as high cost and complex implementation, and achieve the effects of reducing development costs, improving functions, and expanding application prospects

Active Publication Date: 2018-07-03
凯迈(洛阳)测控有限公司
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Problems solved by technology

[0006] The present invention proposes an overhead control method for two-frame platforms of airborne photoelectric reconnaissance equipment, aiming to solve the problem of high cost and complex implementation of the existing two-frame platform overhead problems

Method used

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  • An overhead control method for two-frame platforms of airborne photoelectric reconnaissance equipment
  • An overhead control method for two-frame platforms of airborne photoelectric reconnaissance equipment
  • An overhead control method for two-frame platforms of airborne photoelectric reconnaissance equipment

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Embodiment Construction

[0021] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, the airborne photoelectric reconnaissance equipment overhead control method of the present embodiment comprises the following steps:

[0023] 1) Record a certain time t 1 The azimuth frame angle value α 1 and the previous time t of this time 0 The azimuth frame angle value α 0 and the pitch angle β at that moment;

[0024] 2) Calculate the error value Δα of the azimuth frame angle, that is, Δα=α 1 -α 0 , compare the azimuth frame angle error value Δα with the set angle θ to obtain the actual rotation angle error value Δα′ of the azimuth frame, that is, if Δα>θ, then Δα′=α 1 -360°-α 0 ; If Δα1 +360°-α 0 ; If -θ1 -α 0 , where θ>0;

[0025] 3) According to the two time intervals in step 1), calculate the rotational angle differential velocity value V of the azimuth frame, that is, V=Δα' / (t 1...

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Abstract

The invention relates to an overhead control method for an onboard photoelectric detection equipment two-frame platform. The method comprises the steps that 1, an azimuth frame angle value alpha 1 of a certain moment t1, an azimuth frame angle value alpha 0 of the last moment t0 of the moment and a pitch angle beta of the moment are recorded; 2, an azimuth frame angle error value delta alpha is obtained, the azimuth frame angle error value delta alpha and a set angle theta are compared, and an azimuth frame actual resolver angle error value delta alpha' is obtained; 3, according to the moment interval in the first step, an azimuth frame resolver angle difference speed value V is calculated; 4, whether the pitch angle beta of the moment is within the overhead section or not is judged, and if yes, the resolver angle difference speed value in the third step is adopted as the azimuth frame resolver angle speed of the moment. According to the method, hardware and structures do not need to be changed, and the development cost and implementation complexity are greatly lowered.

Description

technical field [0001] The invention belongs to the field of tracking control of a stable platform of airborne photoelectric reconnaissance equipment, and in particular relates to an overhead control method for two frame platforms of airborne photoelectric reconnaissance equipment. Background technique [0002] Modern military technology is an important indicator to measure a country's comprehensive national strength. All countries have invested a lot of manpower and material resources in the research of military technology and the research and development of high-tech military equipment. Stabilized platform technology is both a basic technology and a key technology in the field of armaments. Its accuracy and response speed play a key role in improving the performance of weapons and equipment. In the unmanned reconnaissance aircraft system, the attitude of the aircraft will change during flight, and the existence of wind resistance will bring shock and vibration to the carri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/18
CPCG01C21/18
Inventor 王蕾
Owner 凯迈(洛阳)测控有限公司
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