Guidance method for automatic delivery of materials by aircraft for moving targets

An automatic delivery and moving target technology, applied in the field of delivery for moving targets, can solve problems such as not being able to effectively target moving targets, and achieve good adaptability, simple models, and simple calculation methods

Inactive Publication Date: 2018-08-21
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the shortcomings of the prior art that can only target fixed targets and cannot effectively target moving targets, the present invention provides a solution that can quickly calculate the angle deviation and distance deviation

Method used

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  • Guidance method for automatic delivery of materials by aircraft for moving targets
  • Guidance method for automatic delivery of materials by aircraft for moving targets
  • Guidance method for automatic delivery of materials by aircraft for moving targets

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] The basic process is attached figure 1 As shown in the attached figure, the correction method of CCRP angle deviation and distance deviation is further explained. The specific delivery process is as follows:

[0034] Step 1: Calculation of material delivery trajectory

[0035] The materials are put in horizontally, and the differential equations of the center of mass motion during the falling process of the materials are obtained:

[0036]

[0037] where V x is the horizontal velocity of the material, t is the falling time of the aerial bomb, C is the ballistic coefficient of the material, h is the air pressure mercury height, τ is the virtual temperature, P is the tangent of the material dive angle, g is the acceleration of gravity, x is the horizontal moving distance of the material, y is the falling height of the material, V is the fligh...

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Abstract

The invention provides an airplane automatic airdropped material guiding method for aiming at a movable object, wherein the method relates to the field of material airdropping by an airplane. A to-be-corrected angle deviation and a to-be-corrected distance deviation of a carrying airplane are obtained through a center-of-mass motion differential equation set. After the carrying airplane continuously perform correction of the angle deviation and the distance deviation, the carrying airplane drops the material, thereby finishing an airdropping task. The airplane automatic airdropped material guiding method is advantageous in that a relatively simple model and easy equation set resolving are realized; the airplane automatic airdropped material guiding method can be used for performing a dropping guiding task in various conditions of material airdropping by transporters, helicopter maritime rescue, etc.; a resolving method of the invention is suitable for various conditions and conditions of fixed target, movable target, windy environment and no-wind environment can be resolved through the resolving method. High adaptability and simple resolving method are realized. Convenient calculation through a simple iterative method is realized. An on-airplane computer can quickly calculate a result. Furthermore the airplane automatic airdropped material guiding method has relatively high precision.

Description

technical field [0001] The invention relates to the field of delivery of aircraft materials, in particular to a delivery method for moving objects. Background technique [0002] CCRP (Continuously Computed Release Point) is the aiming principle of continuous calculation release point, which is to continuously calculate the release position of the target when the aircraft is approaching the target, and automatically compare this position with the actual position of the aircraft relative to the target in the computer, when the aircraft When the actual position of is consistent with the continuously calculated delivery position, the system will automatically deliver. This aiming principle needs to know the position of the aircraft relative to the target, which is used to automatically compare whether it has reached the drop point, so the target must be tracked. [0003] The specific solution process of CCRP is as follows: [0004] 1) Calculate the theoretical drop trajectory,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/12
CPCG05D1/12
Inventor 汤志荔谷晓星张安张凯翔王行行
Owner NORTHWESTERN POLYTECHNICAL UNIV
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