System and method for long-distance composite autonomous navigation and landing of unmanned aerial vehicle in complex environment
A complex environment and autonomous navigation technology, applied in the field of unmanned aerial vehicles, can solve the problems of limited positioning accuracy, shipborne radar measurement accuracy, limited operating distance of photoelectric tracking system, unsuitable for long-distance navigation, etc., to achieve no multipath effect, Eliminate the landing blind zone, the effect of high precision laser guidance
Active Publication Date: 2022-08-09
JIANGSU TIANNING PHOTON TECH
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Problems solved by technology
The disadvantages of the radar landing system are: 1) The positioning accuracy is completely limited by the measurement accuracy of the shipboard radar
2) Once the radar signal is subject to strong electromagnetic interference, it is impossible to return
This patent uses a radio communication link, once it is subject to strong electromagnetic interference, it will lose its landing function; and the photoelectric tracking system has a limited range, which is suitable for short-distance landing and not suitable for long-distance navigation.
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[0047] The present invention is as Figure 1-5 As shown, the specific embodiments of the present invention will be further described in detail with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.
[0048] Lidar is used to detect roads and identify targets, and it is very common in the navigation of unmanned vehicles or drones, but these all need terrain and features as a reference. The long-distance composite autonomous navigation and landing system of the unmanned aerial vehicle of the present invention uses the ocean as the environment without any reference and cannot preset cooperation targets. Here, the lidar is only used as a positioning and communication tool for the UAV, providing position information and control instructions for the UAV relative to the tool itself.
[0049] The application of laser guidance systems in smart ammunition w...
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System and method for long-distance composite autonomous navigation and landing of unmanned aerial vehicle in complex environment. Provided are a long-distance composite autonomous navigation and landing system and method for an unmanned aerial vehicle in a complex environment where control accuracy is improved without GNSS and strong rejection. It includes the shipborne laser radar guidance and positioning subsystem set on the landing platform and the airborne laser navigation and tracking subsystem set on the UAV. The two subsystems realize the communication of guidance and navigation information through a laser communication link. The invention combines the laser guidance system and the laser radar, without the need for GNSS, natural reference objects and cooperative targets, and can also guide the drone to return home and land accurately in a strong denial environment. The two systems on the plane and off the plane work together and cooperate with each other, which not only provides information redundancy, but also provides remote control of the UAV, and realizes the coordination, risk avoidance and emergency treatment between UAVs. The entire navigation and landing system is compact, light and small, and is suitable for multi-model and multi-platform equipment.
Description
technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a long-distance composite autonomous navigation and landing system and method for unmanned aerial vehicles in complex environments. Background technique [0002] At present, GNSS navigation technology or radar technology is generally used for UAV navigation and landing. Once the navigation signal is blocked, or it is attacked by stealth equipment with strong denial, the UAV cannot return home smoothly and accurately land. [0003] So, the first thing people think of is inertial navigation technology. However, the accuracy of the inertial navigation system depends on the accuracy of a single sensor. The actual spatial position drifts and accumulates over time. The landing target moves all the time. The inertial navigation system cannot judge the movement of the target in real time. It is almost impossible to return home autonomously and land accurately and safely...
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IPC IPC(8): G05D1/06G05D1/10
CPCG05D1/101G05D1/0684
Inventor郁麒麟李付庭夏长权郭林炀肖骏驰薛健范一鸣
OwnerJIANGSU TIANNING PHOTON TECH