CN-116347609-B - Unmanned aerial vehicle networking communication system

CN116347609BCN 116347609 BCN116347609 BCN 116347609BCN-116347609-B

Abstract

The invention relates to an unmanned aerial vehicle networking communication system, belongs to the technical field of unmanned aerial vehicles, and solves the problems of lack of multilink converged communication and inflexible streaming media analysis in the prior art. The system comprises unmanned aerial vehicle nodes and ground nodes, wherein the ground nodes comprise handheld terminals, cooperative data link end machines and antennas, a data link management and control unit is deployed in the handheld terminals and is in bidirectional interactive communication with the cooperative data link end machines, the data link management and control unit comprises a link management module and a streaming media management module, the link management module is used for managing the unmanned aerial vehicle nodes of narrow-band and wide-band links, constructing unmanned aerial vehicle networks in the narrow-band and wide-band links according to a routing algorithm, synchronizing node time in the unmanned aerial vehicle networks, sending parameter configuration commands according to a parameter configuration mode, and the streaming media management module is used for pushing audio and video acquired in real time in the handheld terminals to a target through the cooperative data link end machines and playing the pulled audio and video in the handheld terminals. The high-efficiency and convenient unmanned aerial vehicle networking communication system is realized.

Inventors

LI WEI
LIAO CHENYU
Lv anli
Gou Jiali
SHI LIANGSHAN
JING XIN
JIA SHAN

Assignees

四川九洲电器集团有限责任公司

Dates

Publication Date: 20260512
Application Date: 20230315

Claims (7)

1. The unmanned aerial vehicle networking communication system is characterized by comprising unmanned aerial vehicle nodes and ground nodes, wherein the ground nodes comprise handheld terminals, cooperative data link end machines and antennas, and a data link management and control unit is deployed in the handheld terminals and is in bidirectional interactive communication with the cooperative data link end machines; The data link management and control unit comprises a link management module and a streaming media management module; the link management module is used for managing unmanned aerial vehicle nodes of the narrow-band and wide-band links, adjusting the network where the unmanned aerial vehicle nodes are located, and constructing unmanned aerial vehicle networks in the narrow-band and wide-band links according to different dynamic routing algorithms; synchronizing node time in the unmanned aerial vehicle network according to the time reference level; according to a parameter configuration mode, a parameter configuration command is sent, wherein unmanned aerial vehicle networks in narrow-band and broadband links are built according to different dynamic routing algorithms, unmanned aerial vehicle networks in the narrow-band links are built according to a flooding algorithm and a DSDV routing algorithm, unmanned aerial vehicle networks in the broadband links are built according to the flooding algorithm and a link state routing algorithm, node time in the unmanned aerial vehicle networks is synchronized according to time reference levels, hop numbers of all nodes in the unmanned aerial vehicle networks from master control nodes are calculated as initial local time reference levels, the time reference level of the master control nodes is highest and is 0, the master control nodes start to send first time reference information, the first time reference information comprises node IDs, time reference levels, time frames, time elements and time slots, non-master control nodes in the unmanned aerial vehicle networks update local node time according to the received first time reference information, non-master control nodes in the unmanned aerial vehicle networks send second time reference information, all nodes take effect according to second time reference information higher than the local time reference levels after receiving a plurality of second time reference information, the new local node time is updated according to the second time reference information, the temporary configuration comprises temporary configuration and temporary configuration comprises the temporary and temporary configuration, the temporary configuration and the permanent configuration is carried out in sequence, and the current and the permanent configuration is carried out in sequence, and the active configuration is carried out in the permanent and the active configuration is carried out in the active and the active configuration state reception state is carried out and the active configuration and the active and state and the active and the active mode and the mode and time and, storing and executing three stages, wherein configured parameters are stored in a memory, and in each stage, a receiving party immediately feeds back after receiving a command, and a transmitting party sends a next stage command after receiving the feedback; The streaming media management module is used for pushing audio and video acquired in real time in the handheld terminal to a target through a cooperative data link end machine, playing the pulled audio and video in the handheld terminal, and supporting ground-air broadband image transmission communication and air-air broadband image transmission communication, wherein the ground-air broadband image transmission communication comprises pushing ground node video to an air unmanned aerial vehicle node and transmitting the ground node video to a rear command station through satellite communication, the air-air broadband image transmission communication comprises sharing video among a plurality of air unmanned aerial vehicle nodes, and the designated video is transmitted back to the rear command station or monitored by a man-machine through a node carrying satellite communication equipment.
2. The unmanned aerial vehicle network communication system of claim 1, wherein each unmanned aerial vehicle node in the unmanned aerial vehicle network corresponds to a routing table, wherein when the target sequence number in the routing table is even, it indicates that the target node is reachable, and when the target sequence number is odd, it indicates that the target node is not reachable, and the hop count is set to infinity.
3. The unmanned aerial vehicle network communication system of claim 1, wherein the coordinated data chain ends govern one or more unmanned aerial vehicle networks and track data packets that have been flooded in an unmanned aerial vehicle network.
4. The unmanned aerial vehicle networking communication system of claim 1, wherein the And each unmanned aerial vehicle node gathers the task rate to a main control node, calculates the task rate ratio of each unmanned aerial vehicle node by the main control node, subtracts the task rate ratio of the corresponding unmanned aerial vehicle node in each time slot table, selects the time slot table with the minimum difference value, and transmits the time slot table to a non-main control node.
5. The unmanned aerial vehicle networking communication system of claim 1, wherein the streaming media management module pushes the audio and video acquired in real time in the handheld terminal to the target through the collaborative data link end machine, and comprises the steps of acquiring a push address of the target, preprocessing the acquired video and audio, creating a push thread, encoding and packaging the audio and the video according to a video transmission protocol to form a message of an audio and video stream, circularly pushing the message to the push address of the target until the audio and video stream is absent, and ending the push thread.
6. The unmanned aerial vehicle networking communication system of claim 1, wherein the streaming media management module plays the pulled audio and video at the handheld terminal, and comprises selecting to play the audio and video, acquiring a message of the audio and video stream when a play address is valid, creating a play thread, decoding the message according to a video transmission protocol, circularly reading the decoded video and audio, respectively transmitting the decoded video and audio to play equipment of the handheld terminal after video and audio synchronization is executed until no video and audio exist, and ending the play thread.
7. The unmanned aerial vehicle networking communication system of claim 5 or 6, wherein a message synchronization code field is added to the message for storing a video transmission protocol.

Description

Unmanned aerial vehicle networking communication system Technical Field The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle networking communication system. Background Along with the rapid development of unmanned aerial vehicles, the demands of the state on the unmanned aerial vehicles are gradually increased, and all aspects of industry, agriculture, military, logistics and the like are kept away from the figure of the unmanned aerial vehicles. The efficient coordination of multiple unmanned aerial vehicles gradually limits the traditional unmanned aerial vehicle communication mode, is particularly important for the unmanned aerial vehicle networking communication to be urgent in order to acquire the communication content of the air target, and has important effects on rapidly, accurately and efficiently acquiring the position information and the state information of the air target, solving the tactical decision and deployment of a battlefield. In the prior art, unmanned aerial vehicle single link communication is common, networking communication is inflexible and strong in dependence, unmanned aerial vehicles of different links in communication links cannot be effectively managed and controlled, application of a multi-link fusion communication technology is lacking, and system expansibility is low due to the common centralization characteristic of man-machine cooperation data link networking. The routing algorithm adopted by the traditional multi-hop transmission technology mainly realizes network topology communication in the scene of fixed infrastructure. Under the condition of self-networking, the network topology changes dynamically, nodes enter and exit the network frequently, so that the desirability and effectiveness of a routing path are also changed, and the traditional routing algorithm cannot adapt to frequent topology changes. In addition, the existing unmanned aerial vehicle has singleness and low flexibility in streaming media communication protocol, and cannot quickly and accurately analyze to finish pushing or playing. Disclosure of Invention In view of the above analysis, the embodiment of the invention aims to provide a communication system of an unmanned aerial vehicle network, which is used for solving the problems that the existing unmanned aerial vehicle network lacks multilink converged communication and stream media analysis is inflexible. The embodiment of the invention provides an unmanned aerial vehicle networking communication system, which comprises an unmanned aerial vehicle node and a ground node, wherein the ground node comprises a handheld terminal, a cooperative data link end machine and an antenna, wherein a data link management and control unit is deployed in the handheld terminal and performs bidirectional interactive communication with the cooperative data link end machine; The data link management and control unit comprises a link management module and a streaming media management module, wherein the link management module is used for managing unmanned aerial vehicle nodes of a narrow-band link and a wide-band link, constructing unmanned aerial vehicle networks in the narrow-band link and the wide-band link according to a routing algorithm, synchronizing node time in the unmanned aerial vehicle networks according to a time reference level, and sending a parameter configuration command according to a parameter configuration mode; and the streaming media management module is used for pushing the audio and video acquired in real time in the handheld terminal to the target through the collaborative data link end machine and playing the pulled audio and video at the handheld terminal. Based on further improvement of the system, the link management module constructs unmanned aerial vehicle networks in the narrow-band and wide-band links according to the routing algorithm, and comprises the steps of constructing the unmanned aerial vehicle networks in the narrow-band links according to the flooding algorithm and the DSDV routing algorithm, and constructing the unmanned aerial vehicle networks in the wide-band links according to the flooding algorithm and the link state routing algorithm. Based on the further improvement of the system, each unmanned plane node in the unmanned plane network corresponds to a routing table, wherein when the target sequence number in the routing table is even, the target node is reachable, and when the target sequence number is odd, the target node is unreachable, and the hop count is set to infinity. Based on further improvements of the system, the cooperative data link end machine manages one or more unmanned aerial vehicle networks and tracks data packets already flooded in the unmanned aerial vehicle networks. Based on the further improvement of the system, the link management module synchronizes the node time in the unmanned aerial vehicle network according to the time refere