Emergency broadcast monitoring method

Abstract

The invention discloses an emergency broadcast monitoring method, and relates to the field of emergency broadcast, and the method comprises the steps: enabling a plurality of unmanned aerial vehicles to start from a monitoring terminal to an emergency broadcast target area, and building an unmanned aerial vehicle communication link; the monitoring terminal sequentially receives the electric quantity data of the unmanned aerial vehicle reaching the corresponding position along the unmanned aerial vehicle communication link; the monitoring terminal analyzes the electric quantity data and the geographic position of the corresponding unmanned aerial vehicle and outputs the electric quantity range of communication execution of the unmanned aerial vehicle corresponding to each unmanned aerial vehicle path, and the unmanned aerial vehicle moves to the corresponding position under different electric quantity conditions in the corresponding electric quantity range; according to the invention, the position movement of the unmanned aerial vehicles is planned, the unmanned aerial vehicle self-circulation under the condition of effective communication data coverage rate is formed, the burden of operators is reduced, the interruption of the communication link caused by power failure is prevented, and the intelligent level of the system is improved.

Description

Technical Field

[0001] The present invention relates to the field of emergency broadcasting, and in particular to a monitoring method for emergency broadcasting. Background Art

[0002] Although UAV relay communication has many advantages in emergency communication, there are also some disadvantages and challenges. The following is a specific analysis: The communication distance and coverage are limited. UAV relay communication mainly relies on line-of-sight (LoS) links, and the communication distance is limited by terrain and obstacles. For example, in an urban environment, high-rise buildings may block signal transmission, resulting in communication interruption; Resource allocation and optimization are difficult. When multiple UAVs cooperate in transmission, it is necessary to optimize the flight path planning and resource allocation. Often, the power of the UAV at the relay node is running out, resulting in the interruption of the communication link.

[0003] Therefore, there is an urgent need for a monitoring method for emergency broadcasting to solve the many disadvantages that occur when UAVs perform emergency broadcast relay. Summary of the Invention

[0004] The present invention provides a monitoring method for emergency broadcasting to solve the problems of the prior art.

[0005] In a first aspect, the present invention provides a monitoring method for emergency broadcasting, including: Multiple UAVs start from a monitoring terminal to an emergency broadcast target area to build a UAV communication link; The monitoring terminal sequentially receives the power data of the UAVs reaching the corresponding positions along the UAV communication link; The monitoring terminal analyzes the power data and the geographical locations of the corresponding UAVs, and outputs the power range for the UAVs corresponding to each UAV path to perform communication. The UAVs corresponding to the power ranges move to the corresponding positions under different power conditions; Multiple UAVs continuously transmit the emergency broadcast data sent by the monitoring terminal in the communication link during the full cycle.

[0006] Further, the multiple UAVs starting from the monitoring terminal to the emergency broadcast target area to build a UAV communication link includes: Detect the geographical location of the target area; The number of UAVs in the formation and the flight end point; Set the end points of adjacent UAVs to be separated by a communication distance, and the communication distance is the 3dB beam width for two UAVs to perform data transmission and reception; Number the time period for the UAVs to switch the transmit and receive antenna switches, and form a UAV communication link by sequentially switching the transmit and receive antenna switches of adjacent UAVs in both directions to transmit data.

[0007] Further, the number of the formation drones and the flight end points; set an end interval of adjacent drones by a communication distance, and the communication distance is the 3dB beam width for two drones to perform data transceiver, and it specifically further includes: Two teams of formation drones fly to the emergency broadcast target area to form two communication links; The distance between the two closest adjacent drones among the two teams of drones is half of a communication distance.

[0008] Further, the monitoring terminal sequentially receives the power data of the drones reaching the corresponding positions along the drone communication link, including: Record the flight power loss value of the drone reaching the corresponding set position; Record the power loss value of the drone performing the emergency broadcast communication task after reaching the corresponding set position.

[0009] Further, the calculation of the flight power loss value and the power loss value of the emergency broadcast communication task specifically includes: Calculate the flight power loss of every two adjacent drones in the same formation of drones through the flight power loss transmitted back to the monitoring terminal by the drones, and calculate the estimated flight power loss of the swapped positions through the power of the drones at the adjacent positions of two different formations of drones.

[0010] Further, the monitoring terminal analyzes the power data and the geographical locations of the corresponding drones, and outputs the power range for the drones corresponding to each drone path to perform communication. The drones corresponding to the power range move to the corresponding positions under different power conditions, including: The two teams of formation drones include the first team of formation drones and the second team of formation drones. The end position of each drone in the second team of formation drones is staggered from the drone in the corresponding sequence of the first team of formation drones by a distance of half of a communication distance; The spatial formation formed after the two different teams of formation drones fly to the corresponding positions is a triangle; For two adjacent triangles, the drones corresponding to the two shared vertices are respectively located in the first team and the second team; Among two adjacent triangles, according to the indication of the monitoring terminal, each time a group of three corresponding drones fly to the next flight end point in a clockwise or counterclockwise direction, that is, at least one drone flies to the position of the corresponding drone in another team of formation drones each time.

[0011] Further, the monitoring terminal analyzes the power data and the geographical locations of the corresponding drones, and outputs the power range for the drones corresponding to each drone path to perform communication. The drones corresponding to the power range move to the corresponding positions under different power conditions, and it further includes: A total of five adjacent drones from the two teams of formation drones form three triangles as vertices; And one of the three triangles in the middle shares one side with each of the two adjacent triangles respectively, and the two shared sides are two different sides of the middle triangle; Among five adjacent drones, two are in the first formation and the other three are in the second formation, or, among five adjacent drones, two are in the second formation and the other three are in the first formation; Among three sequentially adjacent drones in the same formation, the two drones farthest apart move by receiving commands from the monitoring terminal. Specifically: When the power of one of the two drones farthest apart is running out, it flies to the position of the drone in the middle of the original three sequentially adjacent drones by changing positions counterclockwise in the triangle it is in, and then flies to the original position of the other drone among the two drones farthest apart by exchanging positions counterclockwise in the other triangle where the power - running - out drone is located. Among the three triangles, only one of the two triangles sharing a vertex changes each time it moves.

[0012] Furthermore, the monitoring terminal analyzes the power data and the geographical locations of the corresponding drones, and outputs the power range for each drone to execute communication corresponding to each drone path. The drones move to the corresponding positions under different power conditions. It also includes: The monitoring terminal sets the power range for each drone to execute communication tasks at the flight end points of each drone on the communication link, and periodically transmits the drones with power not meeting the power range requirements at different positions back through the position transformation of the two - formation drones. The transmission rule is to transmit in the clockwise or counterclockwise order of the triangles formed by the drones as vertices.

[0013] Furthermore, the multi - drones continuously transmit the emergency broadcast data sent by the monitoring terminal throughout the entire cycle, including: When the drones are not moving, the emergency broadcast data is sequentially transmitted through the communication link in the corresponding formation and the power data is transmitted back. After the two drone formations correct the data with each other, the lost packet data is supplemented.

[0014] Furthermore, the multi - drones continuously transmit the emergency broadcast data sent by the monitoring terminal throughout the entire cycle, and it also includes: During the process of the drones moving after receiving dynamic movement instructions, three adjacent drones in the same triangle that are in the moving state are selected. When each formation transmits the emergency broadcast data to the drones on the communication link that are moving, the drone closest in distance is selected to transmit the data. When the distances are similar, the data is transmitted to two different drones respectively.

[0015] A monitoring method for emergency broadcast provided by the present invention plans the position movement of drones, forms a self - circulation of drones under the condition of effective communication data coverage rate, reduces the burden on operators, prevents the communication link from being interrupted due to power failure, and improves the intelligent level of the system.

[0016] The drone formation provided by the present invention can effectively resist external interference through multi - link transmission and communication distance setting, and ensure stable operation under complex electromagnetic environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of the present invention, and do not limit the embodiments of the present invention. In the drawings: Figure 1 It is a formation schematic diagram of drones when they do not move in a monitoring method for emergency broadcast provided by an exemplary embodiment of the present invention.

[0018] Figure 2 It is a formation schematic diagram of drones when they move in a monitoring method for emergency broadcast provided by an exemplary embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the data transfer direction of the communication link when the drones do not move in a monitoring method for emergency broadcast provided by an exemplary embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the data transfer direction of the communication link when the drones move in a monitoring method for emergency broadcast provided by an exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are only examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0022] The specific application scenario of the present invention is an emergency broadcast communication link built by drones.

[0023] A monitoring method for emergency broadcast provided by the present invention aims to solve the above - mentioned technical problems of the prior art.

[0024] The technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0025] Example 1: UAV formation and communication link establishment: In a natural disaster area, emergency information needs to be quickly broadcast to the affected people. Multiple UAVs start from the monitoring terminal and establish communication links for emergency broadcasting, forming a Figure 1 The communication link established by the drones in formation 1 only shows three drones, and the specific number of drones can be expanded as needed; the five drones are divided into two formations, with three drones in formation 1 and two drones in formation 2. They set out from the monitoring terminal to the right, with one group of drones forming a triangular formation, and the other group of drones staggered to fly at half the communication distance, forming another triangular communication link in the target area. The triangular formation ensures stable communication coverage, and staggered distances reduce signal interference. Specifically, the number of formations and flight endpoints can be determined according to the geographical location and communication needs of the target area, and the interval between adjacent drone endpoints is set to the communication distance corresponding to the 3dB beam width to ensure effective communication coverage. The drones switch the transceiver antenna switches in sequence according to the numbering order, and adjacent drones transmit data in both directions in turn to form a stable communication link.

[0026] Power data monitoring and analysis: The monitoring terminal receives the power data of each drone in real time, records the power consumption during flight and the power consumption of performing communication tasks. The monitoring terminal analyzes the power data and geographic location, and sets a power range for each drone path. When the drone power is close to the lower limit of the range, adjust its flight mission or position to ensure communication stability.

[0027] Emergency broadcast data transmission: After the communication link is established, the monitoring terminal continuously sends emergency broadcast data to the drone. The drone transmits data stably throughout the entire cycle to ensure that the disaster-stricken area receives emergency information uninterruptedly.

[0028] Example 2: Figure 2 As shown, based on Example 1, the triangle formation in the middle corresponds to the drone receiving the command from the monitoring terminal to move clockwise.

[0029] Example 3: Figure 3 As shown, based on Example 1, a communication link is formed and data transmission direction is as shown by the arrow in the figure.

[0030] Example 4: Figure 4 As shown, based on Example 2, the communication link data transmission direction is formed as shown by the arrow in the figure.

[0031] In several embodiments provided by the present invention, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there can be other division methods. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0032] The modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical modules, that is, they can be located in one place or distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0033] In addition, the functional modules in various embodiments of the present invention can be integrated into one processing module, or each module can exist physically alone, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of a combination of hardware and software functional modules.

[0034] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods or systems. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects.

[0035] It should also be noted that the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, commodity or device including the element.

[0036] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

[0037] Other embodiments of the present invention will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention, which follow the general principles of the invention and include known common knowledge or conventional technical means in the technical field not disclosed by the present invention. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present invention are pointed out by the appended claims above.

[0038] It should be understood that the present invention is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A monitoring method for emergency broadcasts, characterized in that, Including: Multiple drones start from the monitoring terminal and build a drone communication link to the emergency broadcast target area; The monitoring terminal sequentially receives the power data of the drones reaching the corresponding positions along the drone communication link; The monitoring terminal analyzes the power data and the geographical locations of the corresponding drones, and outputs the power range for the drones corresponding to each drone path to perform communication. The drones move to the corresponding positions under different power conditions according to the corresponding power range; Multiple drones continuously transmit the emergency broadcast data sent by the monitoring terminal through the communication link during the full cycle.

2. The monitoring method of an emergency broadcast according to claim 1, characterized in that, The multiple drones start from the monitoring terminal and build a drone communication link to the emergency broadcast target area, including: Detecting the geographical location of the target area; The number and flight end points of the formation drones; Setting the end points of adjacent drones to be separated by a communication distance, and the communication distance is the 3dB beam width for two drones to perform data transmission and reception; Numbering the time period for the drones to switch the transceiver antenna switches, and forming a drone communication link by sequentially switching the transceiver antenna switches of adjacent drones in both directions to transmit data.

3. The monitoring method of an emergency broadcast according to claim 2, wherein The number and flight end points of the formation drones; setting the end points of adjacent drones to be separated by a communication distance, and the communication distance is the 3dB beam width for two drones to perform data transmission and reception, and specifically includes: Two teams of formation drones fly to the emergency broadcast target area to form two communication links; The distance between the two closest adjacent drones in the two teams of drones is half of a communication distance.

4. The monitoring method of an emergency broadcast according to claim 3, wherein, The monitoring terminal sequentially receives the power data of the drones reaching the corresponding positions along the drone communication link, including: Recording the flight power loss value of the drone reaching the corresponding set position; Recording the power loss value of the drone for performing the emergency broadcast communication task after reaching the corresponding set position.

5. The monitoring method of an emergency broadcast according to claim 4, wherein The calculation of the flight power loss value and the power loss value of the emergency broadcast communication task specifically includes: Calculating the flight power loss between every two adjacent drones in the same formation of drones through the flight power loss transmitted back to the monitoring terminal by the drones, and calculating the estimated flight power loss for the exchange position through the power of the drones at the adjacent positions of two different formations of drones.

6. The monitoring method of an emergency broadcast according to claim 5, wherein The monitoring terminal analyzes the power data and the geographical locations of the corresponding drones, and outputs the power range for the drones corresponding to each drone path to perform communication. The drones move to the corresponding positions under different power conditions according to the corresponding power range, including: The two formation drones include the first formation drone and the second formation drone. The end position of each drone in the second formation drone is staggered from the drone in the corresponding sequence of the first formation drone by a distance of half of a communication distance; The spatial formation formed after the two different formation drones fly to the corresponding positions is a triangle; For two adjacent triangles, the drones corresponding to the two common vertices are respectively located in the first formation and the second formation; In two adjacent triangles, according to the instructions of the monitoring terminal, each time a group of three corresponding drones fly to the next flight end point in a clockwise or counterclockwise direction, that is, at least one drone flies to the position of the corresponding drone in another formation each time.

7. The monitoring method of an emergency broadcast according to claim 6, wherein The monitoring terminal analyzes the power data and the corresponding UAV geographical locations, and outputs the power range for each UAV to perform communication corresponding to each UAV path. The UAV moves to the corresponding position under different power conditions. It further includes: Two formations with a total of five adjacent UAVs form three triangles as vertices; And one of the three triangles in the middle shares one side with each of the two adjacent triangles respectively, and the two shared sides are two different sides of the middle triangle; Among the five adjacent UAVs, two are in the first formation and the other three are in the second formation, or two of the five adjacent UAVs are in the second formation and the other three are in the first formation; Among the three sequentially adjacent UAVs in the same formation, the two UAVs farthest apart move by receiving commands from the monitoring terminal. Specifically: When the power of one of the two UAVs farthest apart is in an emergency, it flies to the position of the UAV in the middle of the original three sequentially adjacent UAVs by changing positions counterclockwise in the triangle where it is located, and then flies to the original position of the other UAV among the two UAVs farthest apart by exchanging positions counterclockwise in the other triangle where the UAV with the power emergency is located. Among them, for the two triangles with a common vertex among the three triangles, only one of the triangles changes each time it moves.

8. A monitoring method for an emergency broadcast according to claim 7, characterized in that, The monitoring terminal analyzes the power data and the corresponding UAV geographical locations, and outputs the power range for each UAV to perform communication corresponding to each UAV path. The UAV moves to the corresponding position under different power conditions. It further includes: The monitoring terminal sets the power range for each UAV to perform communication tasks at the flight end points of each UAV on the communication link, and periodically transmits the UAVs with power not meeting the power range requirements at different positions back through the position transformation of the two formation UAVs. The transmission rule is to transmit back in the clockwise or counterclockwise order of the triangles formed by the UAVs as vertices.

9. A monitoring method for an emergency broadcast according to claim 8, characterized in that, The multi-UAV continuously transmits the emergency broadcast data sent by the monitoring terminal on the communication link during the full cycle, including: When the UAVs do not move, the emergency broadcast data is sequentially transmitted through the communication link in the corresponding formation and the power data is transmitted back. After the two UAV formations correct the data with each other, the lost packet data is supplemented.

10. The monitoring method of an emergency broadcast according to claim 8, characterized in that, The multi-UAV continuously transmits the emergency broadcast data sent by the monitoring terminal on the communication link during the full cycle. It further includes: During the process of the UAV moving after receiving the dynamic movement instruction, three adjacent UAVs in the same triangle that are in the moving state are selected. When each formation transmits the emergency broadcast data to the UAVs on the communication link that are moving, the next UAV closest in distance is selected to transmit the data. When the distances are similar, the data is transmitted to two different UAVs respectively.

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