CN-122001489-A - Unmanned aerial vehicle and unmanned ship heterogeneous platform laser cooperative communication method and system

CN122001489ACN 122001489 ACN122001489 ACN 122001489ACN-122001489-A

Abstract

The invention discloses a laser cooperative communication method and system for an unmanned aerial vehicle and an unmanned ship heterogeneous platform, wherein the method comprises the steps of constructing a heterogeneous laser cooperative communication system, positioning, deploying and initializing parameters, and constructing a cross-medium laser communication link; and after the communication cycle is finished, sending a task termination instruction, optimizing system parameters based on historical data, and realizing heterogeneous platform laser cooperative communication. According to the invention, the unmanned ship is used as a water surface relay node, the radio frequency signal of the land control station is converted into the blue-green laser signal, and the blue-green laser signal is transmitted to the underwater unmanned plane, so that cross-medium communication is realized. The laser cooperative communication method and system for the unmanned aerial vehicle and unmanned ship heterogeneous platform can be widely applied to the technical field of cross-medium wireless communication.

Inventors

ZHANG XINJIE
WU YUNFA
LIU YONGFU
SHAO JIAYUAN
LIN JIECHENG
LI ZHIMING
LI YONGHUI
CAI XUEYI

Assignees

广东开放大学（广东理工职业学院）

Dates

Publication Date: 20260508
Application Date: 20260311

Claims (9)

1. The laser cooperative communication method for the unmanned aerial vehicle and the unmanned ship heterogeneous platform is characterized by comprising the following steps of: Constructing a heterogeneous laser cooperative communication system, positioning and deploying, initializing parameters and constructing a cross-medium laser communication link; Communication circulation is carried out based on a cross-medium laser communication link, and a self-adaptive guarantee mechanism is constructed; And after the communication cycle is finished, sending a task termination instruction, and optimizing system parameters based on historical data to realize laser cooperative communication of the heterogeneous platforms.
2. The method for laser cooperative communication between an unmanned aerial vehicle and an unmanned ship heterogeneous platform according to claim 1, wherein the steps of constructing a heterogeneous laser cooperative communication system, performing positioning deployment and parameter initialization, and constructing a cross-medium laser communication link specifically comprise: Constructing a heterogeneous laser cooperative communication system, wherein the heterogeneous laser cooperative communication system comprises a land control station, an unmanned ship relay platform and a sea-air unmanned plane; Sequentially performing system power-on self-checking, positioning deployment and time synchronization processing on the heterogeneous laser cooperative communication system to obtain an initialized heterogeneous laser cooperative communication system; based on an unmanned ship relay platform of an initialized heterogeneous laser cooperative communication system, transmitting beacon light to a sea-air unmanned plane; receiving beacon light based on an initialized heterogeneous laser cooperative communication system of a sea-air unmanned aerial vehicle, identifying light spots through YOLOv algorithm, and calculating offset; based on the offset, acquiring feedback relative position information through the short optical pulse; And the unmanned ship relay platform finely adjusts laser pointing according to feedback relative position information through a PID control algorithm to construct a cross-medium laser communication link.
3. The laser cooperative communication method of the unmanned aerial vehicle and the unmanned ship heterogeneous platform according to claim 2, wherein the step of performing communication circulation based on a cross-medium laser communication link specifically comprises the following steps: Based on an initialized land control station of the heterogeneous laser cooperative communication system, generating a JSON format instruction packet and generating a 5G signal instruction through Turbo coding; Based on an unmanned ship relay platform of an initialized heterogeneous laser cooperative communication system, carrying out radio frequency and laser signal conversion by combining with OFDM, and generating an optical signal modulation instruction; and converting the optical signal modulation instruction into a blue-green laser signal based on MIMO (multiple input multiple output) to perform underwater laser communication, and transmitting the blue-green laser signal to a sea-air unmanned aerial vehicle initializing a heterogeneous laser cooperative communication system to realize communication circulation.
4. The laser cooperative communication method of the unmanned aerial vehicle and the unmanned ship heterogeneous platform according to claim 3, wherein the self-adaptive guarantee mechanism comprises: based on signal-to-noise ratio monitoring the link quality in real time; For highly turbid sea conditions, error correction coding redundancy is increased, and platform shake is compensated through a predictive tracking algorithm; And acquiring an optimal communication path in real time through a Dijkstra algorithm.
5. The laser cooperative communication method of the unmanned aerial vehicle and the unmanned ship heterogeneous platform according to claim 4, wherein the expression of the system parameter optimization based on the historical data is specifically as follows: ; In the above-mentioned method, the step of, Represents the set of optimal parameters and, Represent the first Error rate of the secondary communication.
6. The utility model provides an unmanned aerial vehicle and unmanned ship heterogeneous platform laser cooperative communication system which characterized in that, including land control station, unmanned ship relay platform and sea air unmanned aerial vehicle, wherein: The land control station comprises a radio frequency transmitting module, an instruction encoding module and a global situation awareness module; the unmanned ship relay platform comprises a radio frequency receiving module, a signal conversion module, a laser transmitting module, a buoy stabilizing system and a backup communication module; The sea-air unmanned aerial vehicle comprises a laser receiving module, a signal processing module, an execution control module and a light spot positioning system.
7. The unmanned aerial vehicle and unmanned ship heterogeneous platform laser cooperative communication system according to claim 6, further comprising: The radio frequency transmitting module adopts a 5G cellular communication technology to generate a 5G radio frequency signal; The instruction coding module adopts a self-adaptive modulation coding technology and dynamically adjusts the coding rate and the modulation mode according to the channel condition; The global situation awareness module is used for integrating the electronic chart, collecting, processing and displaying the positions of the unmanned ship and the unmanned plane, the communication link state and marine environment data in real time, and generating global situation information.
8. The unmanned aerial vehicle and unmanned ship heterogeneous platform laser cooperative communication system according to claim 7, further comprising: the radio frequency receiving module is used for acquiring a 5G radio frequency signal and carrying out low-noise amplification and demodulation processing; the signal conversion module is used for performing time delay regulation and control on the multi-source signals; the laser emission module is used for converting the 5G radio frequency signals to generate blue-green laser signals; the buoy stabilization system is used for controlling the stabilization of the heterogeneous laser cooperative communication system; The backup communication module is used for enabling three-dimensional magnetic induction coupling communication when laser communication is not available.
9. The unmanned aerial vehicle and unmanned ship heterogeneous platform laser cooperative communication system according to claim 8, further comprising: the laser receiving module is used for acquiring blue-green laser signals; the signal processing module is used for demodulating and decoding the blue-green laser signal and restoring the laser signal; the execution control module is used for controlling the unmanned aerial vehicle to execute corresponding instructions; the light spot positioning system is used for carrying out position alignment and communication with the unmanned ship relay platform.

Description

Unmanned aerial vehicle and unmanned ship heterogeneous platform laser cooperative communication method and system Technical Field The invention relates to the technical field of cross-medium wireless communication, in particular to a laser cooperative communication method and system for an unmanned aerial vehicle and an unmanned ship heterogeneous platform. Background With the growing demand for marine resource exploration and military reconnaissance, cross-medium communication technology has become a research hotspot. Traditional underwater communication mainly relies on underwater acoustic communication and radio communication, but has the problems of limited bandwidth, high delay, easiness in detection and the like. Especially for the water-air unmanned aerial vehicle, communication with a land control center becomes a technical bottleneck after submerging under water. At present, two schemes are mainly adopted for cross-medium communication, namely, air-water signal conversion is realized by utilizing buoy relay, but the problems of inflexibility in arrangement and high cost exist, and the blue-green laser communication is adopted, and the penetration characteristic of blue-green light in water is utilized, but the influence of water quality turbulence is large, and alignment is difficult. For example, in the prior art, the unmanned aerial vehicle directly communicates with the ground control platform through laser, but after the ground clearance of the unmanned aerial vehicle exceeds the communication range, the data packet loss rate is obviously increased. Furthermore, a single communication mode is difficult to adapt to complex marine environments, especially in high sea conditions, where the stability of the communication link drops drastically. In the related art, buoy-based relay communication schemes, such as a "cross-domain relay radio frequency-laser communication module", are used to perform electro-optical signal conversion by using a marine buoy. But this solution relies on a fixed buoy, lacking flexibility. Other researches relate to unmanned aerial vehicle/unmanned ship/unmanned submarine cluster cooperation, but the problem of communication networking in multi-domain cooperation is not completely solved yet. In addition, the unmanned aerial vehicle networking method based on optical communication provides an inter-unmanned aerial vehicle optical communication networking technology, but underwater application scenes are not considered. Disclosure of Invention In order to solve the technical problems, the invention aims to provide the unmanned aerial vehicle and unmanned ship heterogeneous platform laser cooperative communication method and system, which can utilize an unmanned ship as a water surface relay node to convert a radio frequency signal of a land control station into a blue-green laser signal, and transmit the blue-green laser signal to an underwater unmanned aerial vehicle to realize cross-medium communication. The first technical scheme adopted by the invention is that the laser cooperative communication method of the unmanned aerial vehicle and the unmanned ship heterogeneous platform comprises the following steps: Constructing a heterogeneous laser cooperative communication system, positioning and deploying, initializing parameters and constructing a cross-medium laser communication link; Communication circulation is carried out based on a cross-medium laser communication link, and a self-adaptive guarantee mechanism is constructed; And after the communication cycle is finished, sending a task termination instruction, and optimizing system parameters based on historical data to realize laser cooperative communication of the heterogeneous platforms. Further, the step of constructing a heterogeneous laser cooperative communication system, performing positioning deployment and parameter initialization, and constructing a cross-medium laser communication link specifically includes: Constructing a heterogeneous laser cooperative communication system, wherein the heterogeneous laser cooperative communication system comprises a land control station, an unmanned ship relay platform and a sea-air unmanned plane; Sequentially performing system power-on self-checking, positioning deployment and time synchronization processing on the heterogeneous laser cooperative communication system to obtain an initialized heterogeneous laser cooperative communication system; based on an unmanned ship relay platform of an initialized heterogeneous laser cooperative communication system, transmitting beacon light to a sea-air unmanned plane; receiving beacon light based on an initialized heterogeneous laser cooperative communication system of a sea-air unmanned aerial vehicle, identifying light spots through YOLOv algorithm, and calculating offset; based on the offset, acquiring feedback relative position information through the short optical pulse; And the unmanned ship relay platform finely adjusts