Control system for strapdown guidance unmanned aerial vehicle

Abstract

The invention discloses a control system for a strapdown guidance unmanned aerial vehicle. The control system comprises an image seeker, an image processing module and a navigation guidance control module; the image seeker is strapped on the unmanned aerial vehicle and is used for capturing the image information of a target area; the image processing module sends the image information to a groundstation; the ground station selects an attack target from the image information, triggers a strap-down terminal guidance attack instruction, and transmits the position information of the selected target in the current frame image and the strap-down terminal guidance attack instruction to the image processing module; the image processing module obtains guidance information after receiving the position information and the instruction, and transmits the guidance information to the navigation guidance control module through a fast real-time subscription and distribution protocol; the navigation guidance control module receives the guidance information transmitted by the image processing module in real time and thereafter obtains the servo control quantity of the unmanned aerial vehicle throughan outer-ring flight path control loop and an inner-ring attitude control loop, so as to perform attitude control on the unmanned aerial vehicle.

Description

technical field [0001] The invention belongs to the technical field of aircraft navigation guidance and control, and in particular relates to a control system for a strapdown guided unmanned aerial vehicle. Background technique [0002] At present, the on-board electrical equipment of micro UAVs based on the optical strapdown seeker generally contains two important modules: navigation / guidance and control module and image processing module. The power supply systems of these two modules are independent, and they will be connected to the data transmission module respectively, and the attitude information, navigation information and instructions of the UAV acquired respectively, and the image information and instructions of the seeker will be sent back to the computer through the data link. to the ground station. The guidance information required by the navigation / guidance and control module is provided by the image processing module, and the information transmission follows t...

AI Technical Summary

Problems solved by technology

In addition, the software and hardware systems and task operating frequencies of the navigation / guidance and control modules and image processing modules are usually inconsistent, and in the process of strapdown terminal guidance, people often expect the frequency of obtaining guidance information to match the frequency of UAV guidance tasks. The MAVLink protocol cannot improve this, only some simple processing can be done at the software level of the navigation / guidance and control module

[0003] At the same time, from the perspective of the overall UAV system, the separation of the navigation / guidance and control module and the image processing module increases the complexity of the electrical interface and reduces the reliability of use

Images