Direct communication mode selection and trajectory design method and device for unmanned aerial vehicle
A trajectory design and straight-through communication technology, applied in the field of Internet of Things, can solve the problem that the trajectory design method needs to be optimized.
Inactive Publication Date: 2020-06-16
PEKING UNIV
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The trajectory design method in the existing related technology needs to be optimized
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[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0057] In cellular UAV-IoT, there are trade-offs in the sensing and transmission process of UAVs. When the UAV is closer to the perception task, its perception quality is higher, but its transmission quality is lower due to its distance from the base station or mobile device, and vice versa. Therefore, the design of UAV flight trajectory is necessary. In addition, in the scenario of direct communication, UAVs will face the choice of two transmiss...
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The invention provides a direct communication mode selection and trajectory design method and device for an unmanned aerial vehicle. The method comprises the following steps: performing parameter configuration of an unmanned aerial vehicle, and in each period of task execution, obtaining the current position of each unmanned aerial vehicle in the unmanned aerial vehicle cluster, inputting the current position of each unmanned aerial vehicle into the trajectory design model to obtain a plurality of trajectory parameter values after transmission mode selection, and selecting the flight trajectory corresponding to the maximum trajectory parameter value as the flight trajectory in the period, wherein the current position of each unmanned aerial vehicle is input into the track design model; theinfluence of other unmanned aerial vehicles in the unmanned aerial vehicle cluster on the unmanned aerial vehicle can be considered at the same time, the trained trajectory design model can determinethe transmission mode in advance according to the current position of the unmanned aerial vehicle, and the better flight trajectory of the unmanned aerial vehicle is determined by considering the influence of other unmanned aerial vehicles and the influence of the transmission mode.
Description
technical field [0001] The present invention relates to the technical field of the Internet of Things, in particular to a mode selection and trajectory design method and device for unmanned aerial vehicle direct communication. Background technique [0002] Drones are an emerging IoT sensing device that can provide sensing services in many fields. In existing UAV systems, UAVs transmit sensing data to mobile devices through unlicensed frequency bands (such as: ISM frequency band). Due to the random access characteristics of unlicensed spectrum, the data transmission of drones will be subject to uncontrollable interference, so the service quality of perception services is difficult to guarantee. To solve this problem, an effective solution is to support UAV perception services through terrestrial cellular networks, which is also known as the cellular UAV Internet of Things. In this network, drone sensing is the way data can be transmitted using cellular communications via ba...
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Login to View More IPC IPC(8): H04W4/40H04W4/029G05D1/10
CPCG05D1/104H04W4/029H04W4/40
Inventor 宋令阳吴凡毅张泓亮吴建军
Owner PEKING UNIV