Emergency communication link deployment method and system and readable storage medium

Abstract

The invention provides an emergency communication link deployment method and system and a readable storage medium. The method comprises the following steps: determining a starting base station and a target base station of a to-be-deployed emergency communication link based on damaged base station information in a disaster area; taking the position of the starting base station as the starting point of the unmanned aerial vehicle, taking the position of the target base station as the terminal point of the unmanned aerial vehicle, and calculating the initial route and route distance of the unmanned aerial vehicle; determining the specification of an optical fiber storage bucket of the unmanned aerial vehicle according to the route distance; and the unmanned aerial vehicle is controlled to fly along the initial air route, the optical fiber is led out through the optical fiber outlet nozzle of the optical fiber storage barrel in the flying process, and the direction and speed of the unmanned aerial vehicle are adjusted in real time according to the bending angle detected by the bending degree sensor at the optical fiber outlet nozzle in the leading-out process. According to the method, the system and the medium, the problems of long recovery time, limited coverage and insufficient transmission bandwidth due to the fact that an existing emergency communication link deployment method mainly depends on manual cable laying or unmanned aerial vehicle carried wireless base stations can be solved.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and in particular to an emergency communication link deployment method, system, and readable storage medium. Background Art

[0002] During natural disasters like earthquakes and typhoons, the damage rate for ground communication base stations can reach 60%-80%, creating isolated areas of communication. Traditional emergency communication vehicles, limited by terrain accessibility, have an average deployment time of over four hours, failing to meet the time efficiency requirements of the 72-hour golden rescue window.

[0003] In today's complex and ever-changing natural disaster environment, rapid restoration of emergency communications is crucial to rescue efforts. This is especially true in isolated areas caused by natural disasters like earthquakes and floods, where communications infrastructure is often severely damaged. Traditional communication restoration methods are often time-consuming and unable to meet the timeliness requirements of emergency rescue efforts. Therefore, the search for more efficient and faster emergency communication restoration solutions is urgent.

[0004] Existing methods for deploying emergency communication links primarily include the following: First, traditional manual cabling, which relies on manual cabling and takes an average of over six hours to connect in complex terrain, failing to meet the one-hour golden recovery window. Second, drones equipped with wireless base stations provide temporary coverage. However, a single node only supports 200 users, with a transmission bandwidth of ≤1Gbps, failing to meet the 10Gbps capacity requirement for backhaul from base station rooms. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the existing technology and provide an emergency communication link deployment method, system and readable storage medium to solve the problems that the existing emergency communication link deployment method mainly relies on manual cabling or drone-mounted wireless base stations, which have long recovery time, limited coverage and insufficient transmission bandwidth.

[0006] In a first aspect, the present invention provides a method for deploying an emergency communication link, the method comprising:

[0007] Determine the starting base station and target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area;

[0008] The position of the starting base station is used as the starting point of the UAV, and the position of the target base station is used as the end point of the UAV, and the initial route and route distance of the UAV are calculated;

[0009] Determining the specifications of the optical fiber storage bucket of the drone according to the route distance;

[0010] Controlling the drone to fly along the initial route and, during flight, extracting optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket, and during the extraction process, adjusting the direction and speed of the drone in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein the drone is equipped with an optical fiber storage bucket of the aforementioned specifications, and one side of the optical fiber storage bucket has an optical fiber outlet nozzle, and the optical fiber outlet nozzle is provided with a bending sensor for detecting the bending angle of the optical fiber during the extraction process;

[0011] In response to the drone arriving at the target base station, the optical fiber storage bucket is released so that the optical fiber can be drawn out and connected to the target base station.

[0012] Furthermore, the determining of the starting base station and the target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area specifically includes:

[0013] Use the access network management system to obtain information about damaged base stations in the disaster area;

[0014] Displaying the disaster area and all base station information within the disaster area on a geographic information system (GIS) map;

[0015] Determining a starting base station of an emergency communication link to be deployed based on the displayed disaster area;

[0016] The target base station of the emergency communication link to be deployed is determined according to the damaged base station information and the information of all base stations in the disaster area.

[0017] Furthermore, the determining of a starting base station of the emergency communication link to be deployed based on the displayed disaster area specifically includes:

[0018] Selecting a connectable base station closest to the disaster area as the starting base station of the emergency communication link to be deployed; or,

[0019] The operator freely selects a communication vehicle or other emergency base station equipment that has been deployed at a location as the starting base station of the emergency communication link to be deployed.

[0020] Furthermore, the method further comprises:

[0021] The initial route is dynamically adjusted according to the latest meteorological data and terrain data.

[0022] Furthermore, there are four bending sensors, which are respectively arranged on the upper, lower, left and right surfaces of the optical fiber outlet nozzle. The direction and speed of the drone are adjusted in real time according to the bending angle detected by the bending sensors at the optical fiber outlet nozzle, specifically including:

[0023] When the bending angle detected by any one of the four bending sensors is greater than a preset bending angle threshold, an early warning is issued and the flight speed and turning speed of the UAV are limited;

[0024] Determining whether the operator returns the direction of the drone to the correct position within a preset time;

[0025] If the operator completes the direction correction within the preset time, the flight speed and turning speed restrictions are lifted;

[0026] If the operator fails to correct the direction within the preset time, the drone will be triggered to automatically correct itself.

[0027] Furthermore, the method further comprises:

[0028] During the flight of the UAV, an optical time domain reflectometer (OTDR) module is used to periodically detect whether the optical fiber is broken, wherein the OTDR module is connected to the starting point of the optical fiber;

[0029] In response to detecting an optical fiber break, determining whether a spare optical fiber exists;

[0030] If there is a spare optical fiber, the drone is controlled to continue flying; if there is no spare optical fiber, an alarm is triggered and the drone is controlled to return.

[0031] Furthermore, the specifications of the optical fiber storage bucket include 1km, 3km and 5km;

[0032] The optical fiber outlet nozzle is made of flexible rubber material.

[0033] In a second aspect, the present invention provides an emergency communication link deployment system, comprising:

[0034] The starting base station determination module is used to determine the starting base station and target base station of the emergency communication link to be deployed based on the information of damaged base stations in the disaster area;

[0035] A route and distance calculation module is connected to the starting base station determination module and is used to calculate the initial route and route distance of the drone using the location of the starting base station as the starting point of the drone and the location of the target base station as the end point of the drone;

[0036] a storage bucket specification determination module, connected to the route and distance calculation module, for determining the specifications of the optical fiber storage bucket of the UAV according to the route distance;

[0037] a fiber outlet control module, connected to the storage bucket specification determination module, for controlling the drone to fly along the initial route, and to lead out optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket during flight, and, during the lead-out process, to adjust the direction and speed of the drone in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein the drone is equipped with an optical fiber storage bucket of the specified specifications, and one side of the optical fiber storage bucket has an optical fiber outlet nozzle, and the optical fiber outlet nozzle is provided with a bending sensor for detecting the bending angle of the optical fiber during the lead-out process;

[0038] The storage bucket release module is connected to the optical fiber outlet control module and is used to release the optical fiber storage bucket in response to the drone arriving at the target base station so that the optical fiber can be extracted and connected to the target base station.

[0039] In a third aspect, the present invention provides an emergency communication link deployment system, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to implement the emergency communication link deployment method described in the first aspect above.

[0040] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the emergency communication link deployment method described in the first aspect is implemented.

[0041] The present invention provides an emergency communication link deployment method, system, and readable storage medium. First, based on the information of damaged base stations in the disaster area, the starting base station and target base station of the emergency communication link to be deployed are determined; the position of the starting base station is used as the starting point of the drone, and the position of the target base station is used as the end point of the drone, and the initial route and route distance of the drone are calculated; then, the specifications of the fiber optic storage bucket of the drone are determined based on the route distance; then, the drone is controlled to fly along the initial route, and during the flight, the optical fiber is led out through the optical fiber outlet nozzle of the optical fiber storage bucket, and during the leading-out process, the direction and speed of the drone are adjusted in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein, the drone is equipped with an optical fiber storage bucket of the specifications, and one side of the optical fiber storage bucket has an optical fiber outlet nozzle, and the optical fiber outlet nozzle is provided with a bending sensor for detecting the bending angle of the optical fiber during the outlet process; finally, in response to the drone arriving at the target base station, the optical fiber storage bucket is released so that the optical fiber can be drawn out and connected to the target base station. The present invention deploys emergency communication links by using drones equipped with customized fiber optic storage buckets, which significantly shortens the emergency communication recovery time compared to traditional manual cabling or drones equipped with wireless base stations. At the same time, optical fiber, as a transmission medium, has a higher data transmission bandwidth than wireless transmission, and can meet the stable transmission needs of large-capacity data in disaster areas. In addition, during the fiber optic laying process, the bending angle sensor at the fiber outlet is used to monitor the bending angle of the optical fiber in the outlet process in real time, and the direction and speed of the drone are dynamically adjusted accordingly, which can effectively avoid signal attenuation or physical damage caused by excessive bending of the optical fiber, and significantly improve the reliability and efficiency of the emergency communication link deployment. It solves the problem that the existing emergency communication link deployment method mainly relies on manual cabling or drones equipped with wireless base stations, which has long recovery time, limited coverage, and insufficient transmission bandwidth. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a flowchart of a method for deploying an emergency communication link according to embodiment 1 of the present invention;

[0043] Figure 2 Schematic diagram of the optical fiber outlet nozzle of the optical fiber storage bucket according to an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of cabling for a drone equipped with an optical fiber storage bucket according to an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of a process for action path planning according to an embodiment of the present invention;

[0046] Figure 5 A schematic diagram of a control execution flow of an embodiment of the present invention;

[0047] Figure 6 A schematic diagram of a process for optical fiber status monitoring according to an embodiment of the present invention;

[0048] Figure 7 This is a structural diagram of an emergency communication link deployment system according to embodiment 2 of the present invention;

[0049] Figure 8 This is a structural diagram of an emergency communication link deployment system according to Example 3 of the present invention. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0051] It should be understood that the specific embodiments and drawings described herein are only used to explain the present invention rather than to limit the present invention.

[0052] It is understood that, in the absence of conflict, the various embodiments of the present invention and the various features in the embodiments may be combined with each other.

[0053] It can be understood that, for the convenience of description, the drawings of the present invention only show parts related to the present invention, while parts unrelated to the present invention are not shown in the drawings.

[0054] It can be understood that each unit and module involved in the embodiments of the present invention may correspond to only one physical structure, or may be composed of multiple physical structures, or multiple units and modules may be integrated into one physical structure.

[0055] It can be understood that the terms "first", "second", etc. in the embodiments of the present invention are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of objects.

[0056] It will be understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of the present invention may occur in an order different from that marked in the drawings.

[0057] It is understood that the flowcharts and block diagrams of the present invention illustrate the possible architectures, functions, and operations of the systems, devices, equipment, and methods according to various embodiments of the present invention. Each box in the flowchart or block diagram may represent a unit, module, program segment, or code, which contains executable instructions for implementing the specified functions. Moreover, each box or combination of boxes in the block diagram and flowchart may be implemented using a hardware-based system that implements the specified functions, or may be implemented using a combination of hardware and computer instructions.

[0058] It can be understood that the units and modules involved in the embodiments of the present invention can be implemented by software or hardware. For example, the units and modules can be located in a processor.

[0059] Example 1:

[0060] This embodiment provides a method for deploying an emergency communication link. Figure 1 As shown, the method includes:

[0061] Step S101: determining the starting base station and target base station of the emergency communication link to be deployed based on the information of damaged base stations in the disaster area.

[0062] In this embodiment, when a disaster occurs, the access network management system can be used to obtain information about damaged base stations in the disaster area, and based on this information, the starting base station and target base station of the emergency communication link to be deployed can be determined.

[0063] Optionally, determining the starting base station and the target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area specifically includes:

[0064] Use the access network management system to obtain information about damaged base stations in the disaster area;

[0065] Displaying the disaster area and information of all base stations within the disaster area on a GIS (Geographic Information System) map;

[0066] Determining a starting base station of an emergency communication link to be deployed based on the displayed disaster area;

[0067] The target base station of the emergency communication link to be deployed is determined according to the damaged base station information and the information of all base stations in the disaster area.

[0068] In this embodiment, the disaster area is found through the GIS map, and all base station information in the disaster area (including damaged base stations and undamaged base stations) is viewed. Then, based on the displayed disaster area, the starting base station of the emergency communication link to be deployed is determined, and an undamaged base station in the disaster area is used as the target base station of the emergency communication link to be deployed.

[0069] Optionally, the determining a starting base station of the emergency communication link to be deployed based on the displayed disaster area specifically includes:

[0070] Selecting a connectable base station closest to the disaster area as the starting base station of the emergency communication link to be deployed; or,

[0071] The operator freely selects a communication vehicle or other emergency base station equipment that has been deployed at a location as the starting base station of the emergency communication link to be deployed.

[0072] In this embodiment, the system can choose to obtain the nearest connectable base station or freely select a connection location. When the nearby base station is close, it can be selected as the starting base station. When the nearby connectable base station is far away (greater than a certain distance threshold), the location can be freely selected. By moving the communication vehicle or other emergency base station equipment to the freely selected location, it can also be used as the planning starting point for connection.

[0073] Step S102: The position of the starting base station is used as the starting point of the UAV, and the position of the target base station is used as the end point of the UAV, and the initial route and route distance of the UAV are calculated.

[0074] In this embodiment, when performing the initial route planning of the drone, the shortest route is taken as the goal, and the terrain, obstacles and environmental risk factors are comprehensively considered, and unfavorable factors in the geographical environment are avoided as much as possible, including but not limited to water areas, complex terrain, high-risk areas, etc., to ensure the safe flight of the drone and improve the efficiency and stability of fiber optic deployment.

[0075] Step S103: Determine the specifications of the optical fiber storage bucket of the UAV according to the route distance.

[0076] In this embodiment, the specifications of the optical fiber storage bucket include 1km, 3km and 5km. The optical fiber storage bucket stores optical fibers. The specifications of the optical fiber storage bucket of the drone can be determined according to the route distance.

[0077] It's important to note that drones possess high-precision navigation, long endurance (e.g., hydrogen energy or high-capacity batteries), and a payload capacity exceeding 5kg. These features enable them to meet the hardware requirements for carrying fiber optic storage buckets and performing complex path planning. Furthermore, since the actual specifications of fiber optic storage buckets range from 0.68 to 2.2kg, the drone's payload capacity fully meets these requirements.

[0078] Step S104: Control the UAV to fly along the initial route, and lead out the optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket during the flight, and during the lead-out process, adjust the direction and speed of the UAV in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein, the UAV is equipped with an optical fiber storage bucket of the specification, and a optical fiber outlet nozzle is provided on one side of the optical fiber storage bucket, and a bending sensor is provided on the optical fiber outlet nozzle for detecting the bending angle of the optical fiber during the lead-out process.

[0079] In this embodiment, a drone is equipped with a fiber optic storage bucket of predetermined specifications to start flying and laying optical fiber, wherein one side of the fiber optic storage bucket is provided with a fiber optic outlet nozzle, and the material of the fiber optic outlet nozzle is a flexible rubber material, on which a bending sensor is provided for detecting the bending angle of the optical fiber during the outlet process. The detection result is used to adjust the direction and speed of the drone in real time, thereby effectively preventing the optical fiber from being damaged due to excessive bending.

[0080] It should be noted that existing technologies include using drones equipped with wireless base stations to provide communications. However, due to the complex electromagnetic environment in the disaster area and the presence of radio frequency signal interference, the radio communication error rate can reach 10%. -3 The success rate of video transmission is less than 65%, and the maximum number of users connected to a single node of a 4G / 5G base station drone is very small, only 200-600 people. The present invention is based on the "wiring in flight" mode. The fiber optic direct link is quickly laid out by the drone. It is not only completely immune to electromagnetic interference and has a very low bit error rate, but also supports N×100G wavelength division multiplexing on a single fiber. A single drone can lay 6-core optical fibers, which is 50 times higher than the traditional microwave backhaul capacity. It can establish a 1-5 km high-bandwidth channel within 30 minutes, quickly restore gigabit transmission capabilities, and effectively ensure the continuous and stable operation of key businesses such as rescue command and public communications.

[0081] Optionally, there are four curvature sensors, which are respectively arranged on the upper, lower, left, and right surfaces of the optical fiber outlet nozzle. The method of adjusting the direction and speed of the drone in real time according to the bending angle detected by the curvature sensors at the optical fiber outlet nozzle specifically includes:

[0082] When the bending angle detected by any one of the four bending sensors is greater than a preset bending angle threshold, an early warning is issued and the flight speed and turning speed of the UAV are limited;

[0083] Determining whether the operator returns the direction of the drone to the correct position within a preset time;

[0084] If the operator completes the direction correction within the preset time, the flight speed and turning speed restrictions are lifted;

[0085] If the operator fails to correct the direction within the preset time, the drone will be triggered to automatically correct itself.

[0086] In this embodiment, bend sensors of the same length as the fiber outlet nozzle are attached to the top, bottom, left, and right surfaces of the fiber outlet nozzle. When any of the bend sensors detects that the bend angle of the released fiber exceeds a preset bend angle threshold (e.g., 75°), an alarm is issued, limiting the drone's flight speed and turning speed, and providing operational prompts on the remote control interface. Within a preset time, the operator can reverse the bend and correct the angle to reduce the bend, releasing the restrictions. If the alarm persists after the preset time expires, the drone will automatically return to its normal position until the bend angles on all four sides fall below the preset bend angle threshold.

[0087] The optical fiber outlet nozzle of the optical fiber storage bucket is shown in the figure below: Figure 2 As shown, taking the preset bending angle threshold of 75° as an example, when the bending sensor on the lower surface detects that the optical fiber bending angle is greater than 75°, it returns to the right. Similarly, when the bending sensor on the left surface detects that the optical fiber bending angle is greater than 75°, it returns to the right.

[0088] Among them, there are bending sensors such as fiber Bragg gratings and MEMS (Micro-Electro-Mechanical Systems) sensors. A fiber Bragg grating sensor is a sensor that uses the wavelength change of a fiber Bragg grating to detect bending. When a fiber Bragg grating bends, its wavelength changes, and the degree of bending can be calculated by detecting this change. Fiber Bragg grating sensors have the advantages of high sensitivity, resistance to electromagnetic interference, high temperature and high pressure resistance, and are suitable for online monitoring in various harsh environments. MEMS sensors are micro-electromechanical system sensors, which use microelectronic processing and micro-mechanical manufacturing technology to manufacture tiny and highly sensitive sensor elements. The working principle of MEMS sensors is based on the principles of piezoresistive effect, capacitance change, etc. (depending on the specific type), which can capture the bending and movement information of objects in real time, and have the advantages of small size, low power consumption, and high integration.

[0089] It should be noted that during flight, drones may tilt due to external factors such as strong winds. By triggering the drone's automatic self-centering function, damage to the optical fiber due to excessive bending can be prevented. Furthermore, the bending angle threshold of the bending sensor at the fiber outlet is verified by simulating extreme bending scenarios (such as sharp turns by the drone and strong wind interference) in the laboratory. In these simulated scenarios, the performance of the optical fiber under different bending conditions is precisely measured to ensure that the bending angle threshold effectively prevents signal attenuation or physical damage caused by excessive bending of the optical fiber, thereby improving the reliability and safety of the optical fiber installation process.

[0090] Optionally, the method further includes:

[0091] The initial route is dynamically adjusted according to the latest meteorological data and terrain data.

[0092] In this embodiment, during the flight of the UAV, in order to improve the accuracy of path planning, the system will also integrate the latest multi-source information such as meteorological data and terrain data, and dynamically adjust the flight route to cope with complex environmental changes.

[0093] Optionally, the method further includes:

[0094] During the flight of the UAV, an OTDR (Optical Time-Domain Reflectometer) module is used to periodically detect whether the optical fiber is broken, wherein the OTDR module is connected to the starting point of the optical fiber;

[0095] In response to detecting an optical fiber break, determining whether a spare optical fiber exists;

[0096] If there is a spare optical fiber, the drone is controlled to continue flying; if there is no spare optical fiber, an alarm is triggered and the drone is controlled to return.

[0097] In this embodiment, to monitor fiber quality throughout its entire journey, the OTDR module performs checks at a fixed interval (e.g., every 5 seconds) to ensure real-time monitoring of fiber status. Upon detecting a break, the system performs the following steps: First, it determines whether a backup fiber is available. If so, the drone is controlled to continue flight; otherwise, an alarm is triggered and the drone is controlled to return. This mechanism ensures that appropriate measures can be taken promptly in the event of a break, effectively preventing ineffective deployment and improving the efficiency and reliability of fiber optic installation.

[0098] Among them, the OTDR module can be specifically a portable micro OTDR module, operating at a wavelength of 1550nm, with an optional 15 / 30 / 45dB dynamic range, an event dead zone of less than 1 meter, and a sampling resolution of 0.1 meter. The module can perform a scanning measurement every 5 seconds during the flight to detect whether the optical fiber is broken in real time.

[0099] In an optional embodiment, a schematic diagram of a UAV cabling system equipped with an optical fiber storage bucket is shown in FIG. Figure 3 As shown, the drone consists of a drone body 1 equipped with a fiber optic storage bucket 3 through a dispenser 2. The dispenser 2 is installed under the drone body 1 and is bound to a fiber optic storage bucket 3. The fiber optic storage bucket 3 has three specifications, namely 1km, 3km, and 5km. The shell is made of ABS plastic. One side of the fiber optic storage bucket 3 is provided with a fiber optic outlet nozzle 4. The fiber optic outlet nozzle 4 is 10 cm long and made of flexible rubber material. Bending sensors are attached to the four surfaces of the upper, lower, left and right sides for detecting the bending angle of the fiber optic outlet. The other end of the optical fiber 5 is connected to the OTDR module 6 for real-time detection of whether the optical fiber is broken during the flight.

[0100] Step S105: In response to the drone arriving at the target base station, the optical fiber storage bucket is released so that the optical fiber can be extracted and connected to the target base station.

[0101] In this embodiment, after the drone reaches the target base station, it can be controlled to slowly land, or the fiber storage bucket can be directly dropped downwards by a dispenser. Ground operators can then extract the optical fiber from the fiber storage bucket and connect it to the target base station, thereby implementing the deployment of an emergency communication link.

[0102] It should be noted that the OTDR module is located at the originating base station, and the fiber's starting point is pre-connected to the OTDR module. During the drone's flight, the OTDR module detects fiber breaks in real time. Once the fiber's end point is connected to the target base station, the fiber's starting point is disconnected from the OTDR module and reconnected to the originating base station.

[0103] It should be noted that traditional emergency communications that rely on satellite vehicles or temporary base stations take several hours to deploy and are restricted by terrain. The present invention uses drones to quickly deploy direct fiber links, which can establish a 1-5 km high-bandwidth channel within 30 minutes. For example, when a base station is damaged by a natural disaster, the operator uses drones to quickly deploy optical fiber to nearby available base stations or emergency communication vehicles, immediately restoring gigabit transmission capabilities and ensuring that critical services such as rescue command and public communications are not interrupted. Compared to the millisecond delay of satellite links (500-800ms), the delay of direct fiber connections can be controlled within 5ms, meeting the needs of highly sensitive services such as real-time video backhaul and telemedicine, and directly improving the operator's service rating in major events.

[0104] In a specific embodiment, a method for deploying an emergency communication link based on a fiber optic storage bucket carried by a drone is provided. The core of this method is to establish an emergency communication system, and through the real-time fusion and intelligent processing of multi-source data, to achieve precise control of the fiber release process, so that the fiber can be quickly, steadily and accurately delivered to the target base station. At the same time, the real-time monitoring module is used to check the current status of the fiber to see if it is broken. The system adopts a layered modular design concept, which decomposes the control process into four main links: action path planning module, control execution module, fiber status monitoring module and fiber storage bucket delivery. Each link is equipped with a corresponding intelligent processing unit to achieve efficient and automated operation. The emergency communication link deployment method may include the following steps:

[0105] 1. Action route planning

[0106] When a disaster occurs, the emergency communication system accesses the network management system to obtain information about damaged base stations in the target area (i.e., the disaster area), searches for the disaster area through the GIS map on the system, and can view information about base stations in the current area on the map. The system can choose to obtain the nearest (closest to the disaster area or closest to the base station that needs to be restored) connectable base station or freely select a connection location. When the nearby base stations are close, a base station can be selected as the planning starting point. When the nearby connectable base stations are far away, a free location can be selected. After selection, the target location can also be used as the planning starting point for connection by moving it to the target location via a communication vehicle or other emergency base station equipment. After selecting the drone starting point and the base station in the disaster area, the system calculates the initial route and route distance. Fiber optic storage buckets of different lengths can be selected based on the distance. In order to improve the accuracy of path planning, the system will also integrate the latest meteorological data, terrain data, and other multi-source information to dynamically adjust the flight route to cope with complex environmental changes.

[0107] Specifically, the flow chart of action path planning is as follows: Figure 4 As shown, including:

[0108] (1) Access the network management system to obtain information about damaged base stations;

[0109] (2) Find the disaster area and base station information through GIS map;

[0110] (3) View base station information in the current area;

[0111] (4) Determine the connection method selection:

[0112] ① If the nearby base stations are close, select the base station as the planning starting point;

[0113] ② If the nearby connectable base station is far away, freely choose the connection location and move to the target via a communication vehicle or emergency base station equipment.

[0114] (5) Select the starting point of the drone;

[0115] (6) Select target base stations within the disaster area;

[0116] (7) The system calculates the initial route and distance;

[0117] (8) Select the fiber optic storage bucket specifications according to the distance (1km / 3km / 5km);

[0118] (9) Integrate multi-source information to dynamically adjust routes;

[0119] (10) Confirm the final flight route.

[0120] 2. Control execution

[0121] To ensure safety during fiber optic cable installation, the drone's overall flight control utilizes manual control with automated assistance. If the drone exhibits unsafe behavior, the flight control system will initiate corrective actions. Because optical fibers are prone to breakage when bent, particularly at the fiber storage bucket outlet, a flexible outlet nozzle approximately 10 cm long is installed at the fiber storage bucket outlet. Bend sensors, also 10 cm long, are attached to the top, bottom, left, and right surfaces of the outlet nozzle. If the bend sensors detect a bend angle exceeding 75°, an alert is issued. Based on the alert, the system determines which direction the drone has twisted excessively and limits its flight speed and turning rate. The remote control interface provides prompts. The restrictions are lifted when the operator reverses the bend and reduces the degree of bending. If the alert persists within 10 seconds, the drone automatically returns to its normal position until the bend on all four sides is less than 75°. This design effectively prevents damage to the fiber due to excessive bending.

[0122] Specifically, the flow chart of control execution is as follows: Figure 5 As shown, including:

[0123] (1) Drones begin flying to lay optical fiber;

[0124] (2) Manual flight control, assisted by automated systems;

[0125] (3) Four bending sensors monitor the fiber outlet in real time;

[0126] (4) Determine whether a sensor detects a curvature greater than 75°:

[0127] (5) If not, continue the flight mission;

[0128] (6) If so, the system will issue an early warning, determine whether the drone has reversed its direction and give a prompt. At the same time, it will limit the drone's flight speed and turning speed and determine whether the operator can right the direction within 10 seconds: ① If so, lift the speed limit and continue the flight mission; ② If not, trigger the drone to automatically right itself and continue the flight mission.

[0129] 3. Fiber status monitoring

[0130] The OTDR module enables full-length optical fiber quality monitoring. The portable micro OTDR module operates at a wavelength of 1550nm, has a selectable dynamic range of 15 / 30 / 45dB, an event dead zone of less than 1 meter, and a sampling resolution of 0.1 meter. It can perform a scanning measurement every 5 seconds during flight to detect in real time whether the optical fiber is broken. Once a break event is detected, the system will immediately trigger an alarm and plan a return route to avoid continued ineffective deployment. The OTDR (Optical Time Domain Reflectometer) is an instrument that transmits light pulses to an optical fiber and analyzes the reflected signals (such as Rayleigh scattering, Fresnel reflection, etc.) to detect the quality of the optical fiber link, locate faults (such as breakpoints, bending losses), and measure length.

[0131] Specifically, the process diagram of optical fiber status monitoring is as follows: Figure 6 As shown, including:

[0132] (1) During the flight of the drone, the OTDR module performs a scanning measurement every 5 seconds;

[0133] (2) Check whether the optical fiber is broken:

[0134] (3) If the optical fiber is normal (not broken), continue with the next OTDR scan;

[0135] (4) If a break is detected, the system triggers an alarm, plans a return route, and determines whether there is a spare fiber to switch to:

[0136] ① If yes, switch to the backup fiber link; continue the delivery task; and proceed to the next OTDR scan;

[0137] ②If not, the drone returns and continues the next OTDR scan.

[0138] To ensure reliable communication link deployment, a fiber optic storage bucket can be used to wind both a primary fiber and a backup fiber of equal length. During drone flight, both the primary and backup fibers are simultaneously routed from the fiber optic outlet of the storage bucket. The primary fiber is used to establish the initial communication link, while the backup fiber serves as a redundant backup, ensuring rapid switching in the event of a primary fiber break, maintaining continuity of the communication link.

[0139] 4. Fiber optic storage bucket deployment

[0140] Upon reaching the target base station, the drone lowers the fiber optic storage bucket using a dispenser. Once the bucket safely lands on the ground, ground operators quickly extract the fiber and connect it to the target base station equipment. The drone then uses the dispenser to retrieve the fiber optic storage bucket. After the retrieval operation is complete, the drone automatically returns to its starting point. To further enhance system reliability, the same drone can be equipped with two independent fiber optic cables: one for the primary link and the other for a backup. If a problem with the primary fiber occurs, the backup fiber can be quickly switched to ensure uninterrupted communication.

[0141] It should be noted that the emergency communication link deployment method provided by the present invention has the following characteristics:

[0142] a) The first "in-flight cabling" mode, whereby drones perform cabling while in flight, breaking through terrain restrictions and greatly improving cabling efficiency.

[0143] b) Set up the OTDR module to monitor the fiber status in real time. If a break is found, return to the ship and replace it immediately, saving post-inspection time.

[0144] c) Active fiber bending protection mechanism: A flexible rubber nozzle (10 cm) and a four-way bending sensor are installed at the outlet of the fiber storage bucket to monitor the bending angle in real time. When the bending angle exceeds 75°, the third level protection is triggered.

[0145] d) Intelligent path planning based on multi-source data fusion. This system integrates GIS geographic information, meteorological data, terrain data, and other multi-source information in real time to dynamically generate and modify drone flight paths, adapting to complex environmental changes in disaster areas. This ensures path planning accuracy and efficiency, supports multi-mode starting point selection (nearest base station / custom location), and combines mobile deployment with communication vehicles to enhance adaptability to emergency scenarios.

[0146] The emergency communication link deployment method provided by an embodiment of the present invention first determines the starting base station and target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area; and uses the position of the starting base station as the starting point of the drone, and the position of the target base station as the end point of the drone, and calculates the initial route and route distance of the drone; then determines the specifications of the fiber optic storage bucket of the drone based on the route distance; then controls the drone to fly along the initial route, and during the flight, leads out the optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket, and during the leading-out process, adjusts the direction and speed of the drone in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein, the drone is equipped with an optical fiber storage bucket of the specifications, and a fiber optic outlet nozzle is provided on one side of the optical fiber storage bucket, and a bending sensor is provided on the optical fiber outlet nozzle for detecting the bending angle of the optical fiber during the outlet process; finally, in response to the drone arriving at the target base station, the optical fiber storage bucket is released so that the optical fiber can be pulled out and connected to the target base station. The present invention deploys emergency communication links by using drones equipped with customized fiber optic storage buckets, which significantly shortens the emergency communication recovery time compared to traditional manual cabling or drones equipped with wireless base stations. At the same time, optical fiber, as a transmission medium, has a higher data transmission bandwidth than wireless transmission, and can meet the stable transmission needs of large-capacity data in disaster areas. In addition, during the fiber optic laying process, the bending angle sensor at the fiber outlet is used to monitor the bending angle of the optical fiber in the outlet process in real time, and the direction and speed of the drone are dynamically adjusted accordingly, which can effectively avoid signal attenuation or physical damage caused by excessive bending of the optical fiber, and significantly improve the reliability and efficiency of the emergency communication link deployment. It solves the problem that the existing emergency communication link deployment method mainly relies on manual cabling or drones equipped with wireless base stations, which has long recovery time, limited coverage, and insufficient transmission bandwidth.

[0147] Example 2:

[0148] like Figure 7 As shown, this embodiment provides an emergency communication link deployment system for executing the above-mentioned emergency communication link deployment method, including:

[0149] The starting base station determination module 11 is used to determine the starting base station and target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area;

[0150] The route and distance calculation module 12 is connected to the starting base station determination module 11 and is used to calculate the initial route and route distance of the drone using the location of the starting base station as the starting point of the drone and the location of the target base station as the end point of the drone;

[0151] a storage bucket specification determination module 13, connected to the route and distance calculation module 12, for determining the specifications of the optical fiber storage bucket of the UAV according to the route distance;

[0152] The optical fiber outlet control module 14 is connected to the storage bucket specification determination module 13 and is used to control the drone to fly along the initial route and to lead out optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket during flight. During the lead-out process, the direction and speed of the drone are adjusted in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle. The drone is equipped with an optical fiber storage bucket of the specified specifications, and one side of the optical fiber storage bucket has an optical fiber outlet nozzle, and the optical fiber outlet nozzle is provided with a bending sensor for detecting the bending angle of the optical fiber during the lead-out process.

[0153] The storage bucket releasing module 15 is connected to the optical fiber outlet control module 14 and is used to release the optical fiber storage bucket in response to the drone arriving at the target base station so as to extract the optical fiber and connect it to the target base station.

[0154] Optionally, the starting base station determination module 11 includes:

[0155] The first acquisition unit is used to obtain information about damaged base stations in the disaster area using the access network management system;

[0156] A first display unit is used to display the disaster area and all base station information within the disaster area on a geographic information system (GIS) map;

[0157] A first determining unit is configured to determine a starting base station of an emergency communication link to be deployed based on the displayed disaster area;

[0158] The second determining unit is configured to determine a target base station of the emergency communication link to be deployed according to the damaged base station information and information of all base stations in the disaster area.

[0159] Optionally, the first determining unit is specifically configured to:

[0160] Selecting a connectable base station closest to the disaster area as the starting base station of the emergency communication link to be deployed; or,

[0161] The operator freely selects a communication vehicle or other emergency base station equipment that has been deployed at a location as the starting base station of the emergency communication link to be deployed.

[0162] Optionally, the system further comprises:

[0163] The dynamic adjustment module is used to dynamically adjust the initial route according to the latest meteorological data and terrain data.

[0164] Optionally, there are four bending sensors, which are respectively arranged on the upper, lower, left and right surfaces of the optical fiber outlet nozzle, and the optical fiber outlet control module 14 includes:

[0165] a bending angle detection unit, configured to issue an early warning and limit the flight speed and turning speed of the UAV when the bending angle detected by any one of the four bending sensors is greater than a preset bending angle threshold;

[0166] The first judgment unit is used to judge whether the operator returns the direction of the drone to the correct position within a preset time;

[0167] a first processing unit, configured to release the restrictions on the flight speed and turning speed if the operator completes the direction correction within a preset time;

[0168] The second processing unit is used to trigger the drone to automatically return to the correct direction if the operator fails to return the direction within a preset time.

[0169] Optionally, the system further comprises:

[0170] An optical time domain reflectometer (OTDR) module, used to periodically detect whether an optical fiber is broken during the flight of the UAV, wherein the OTDR module is connected to the starting point of the optical fiber;

[0171] a spare optical fiber determination module, configured to determine whether a spare optical fiber exists in response to detecting an optical fiber break;

[0172] The flight decision module is used to control the UAV to continue flying if a spare optical fiber exists, and to trigger an alarm and control the UAV to return if no spare optical fiber exists.

[0173] Optionally, the specifications of the optical fiber storage bucket include 1km, 3km and 5km;

[0174] The optical fiber outlet nozzle is made of flexible rubber material.

[0175] Example 3:

[0176] refer to Figure 8 This embodiment provides an emergency communication link deployment system, including a memory 21 and a processor 22, wherein the memory 21 stores a computer program, and the processor 22 is configured to run the computer program to execute the emergency communication link deployment method in Example 1.

[0177] The memory 21 is connected to the processor 22 . The memory 21 may be a flash memory, a read-only memory, or other memory. The processor 22 may be a central processing unit or a single-chip microcomputer.

[0178] Example 4:

[0179] This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the emergency communication link deployment method in the above-mentioned embodiment 1 is implemented.

[0180] The computer-readable storage medium includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules or other data). Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable read only memory), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer.

[0181] In summary, the emergency communication link deployment method, system and readable storage medium provided by the embodiments of the present invention first determine the starting base station and target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area; and use the position of the starting base station as the starting point of the drone, and the position of the target base station as the end point of the drone to calculate the initial route and route distance of the drone; then determine the specifications of the fiber optic storage bucket of the drone based on the route distance; then control the drone to fly along the initial route, and lead out the optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket during the flight, and during the leading-out process, adjust the direction and speed of the drone in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein, the drone is equipped with an optical fiber storage bucket of the specification, and a optical fiber outlet nozzle is provided on one side of the optical fiber storage bucket, and a bending sensor is provided on the optical fiber outlet nozzle for detecting the bending angle of the optical fiber during the outlet process; finally, in response to the drone arriving at the target base station, the optical fiber storage bucket is released so that the optical fiber can be pulled out and connected to the target base station. The present invention deploys emergency communication links by using drones equipped with customized fiber optic storage buckets, which significantly shortens the emergency communication recovery time compared to traditional manual cabling or drones equipped with wireless base stations. At the same time, optical fiber, as a transmission medium, has a higher data transmission bandwidth than wireless transmission, and can meet the stable transmission needs of large-capacity data in disaster areas. In addition, during the fiber optic laying process, the bending angle sensor at the fiber outlet is used to monitor the bending angle of the optical fiber in the outlet process in real time, and the direction and speed of the drone are dynamically adjusted accordingly, which can effectively avoid signal attenuation or physical damage caused by excessive bending of the optical fiber, and significantly improve the reliability and efficiency of the emergency communication link deployment. It solves the problem that the existing emergency communication link deployment method mainly relies on manual cabling or drones equipped with wireless base stations, which has long recovery time, limited coverage, and insufficient transmission bandwidth.

[0182] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A method for deploying an emergency communication link, characterized in that: The method comprises: Determine the starting base station and target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area; The position of the starting base station is used as the starting point of the UAV, and the position of the target base station is used as the end point of the UAV, and the initial route and route distance of the UAV are calculated; Determining the specifications of the optical fiber storage bucket of the drone according to the route distance; Controlling the drone to fly along the initial route and, during flight, extracting optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket, and during the extraction process, adjusting the direction and speed of the drone in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein the drone is equipped with an optical fiber storage bucket of the aforementioned specifications, and one side of the optical fiber storage bucket has an optical fiber outlet nozzle, and the optical fiber outlet nozzle is provided with a bending sensor for detecting the bending angle of the optical fiber during the extraction process; In response to the drone arriving at the target base station, the optical fiber storage bucket is released so that the optical fiber can be drawn out and connected to the target base station.

2. The method according to claim 1, characterized in that The determining of the starting base station and the target base station of the emergency communication link to be deployed based on the damaged base station information in the disaster area specifically includes: Use the access network management system to obtain information about damaged base stations in the disaster area; Displaying the disaster area and all base station information within the disaster area on a geographic information system (GIS) map; Determining a starting base station of an emergency communication link to be deployed based on the displayed disaster area; The target base station of the emergency communication link to be deployed is determined according to the damaged base station information and the information of all base stations in the disaster area.

3. The method according to claim 2, characterized in that The determining of a starting base station of the emergency communication link to be deployed based on the displayed disaster area specifically includes: Selecting a connectable base station closest to the disaster area as the starting base station of the emergency communication link to be deployed; or, The operator freely selects a communication vehicle or other emergency base station equipment that has been deployed at a location as the starting base station of the emergency communication link to be deployed.

4. The method according to claim 1, wherein The method further comprises: The initial route is dynamically adjusted according to the latest meteorological data and terrain data.

5. The method according to claim 1, wherein There are four bending sensors, which are respectively arranged on the upper, lower, left and right surfaces of the optical fiber outlet nozzle. The direction and speed of the drone are adjusted in real time according to the bending angle detected by the bending sensors at the optical fiber outlet nozzle, specifically including: When the bending angle detected by any one of the four bending sensors is greater than a preset bending angle threshold, an early warning is issued and the flight speed and turning speed of the UAV are limited; Determining whether the operator returns the direction of the drone to the correct position within a preset time; If the operator completes the direction correction within the preset time, the flight speed and turning speed restrictions are lifted; If the operator fails to correct the direction within the preset time, the drone will be triggered to automatically correct itself.

6. The method according to claim 1, characterized in that The method further comprises: During the flight of the UAV, an optical time domain reflectometer (OTDR) module is used to periodically detect whether the optical fiber is broken, wherein the OTDR module is connected to the starting point of the optical fiber; In response to detecting an optical fiber break, determining whether a spare optical fiber exists; If there is a spare optical fiber, the drone is controlled to continue flying; if there is no spare optical fiber, an alarm is triggered and the drone is controlled to return.

7. The method according to claim 1, characterized in that The specifications of the optical fiber storage bucket include 1km, 3km and 5km; The optical fiber outlet nozzle is made of flexible rubber material.

8. An emergency communication link deployment system, characterized in that: include: The starting base station determination module is used to determine the starting base station and target base station of the emergency communication link to be deployed based on the information of damaged base stations in the disaster area; A route and distance calculation module is connected to the starting base station determination module and is used to calculate the initial route and route distance of the drone using the location of the starting base station as the starting point of the drone and the location of the target base station as the end point of the drone; a storage bucket specification determination module, connected to the route and distance calculation module, for determining the specifications of the optical fiber storage bucket of the UAV according to the route distance; a fiber outlet control module, connected to the storage bucket specification determination module, for controlling the drone to fly along the initial route, and to lead out optical fiber through the optical fiber outlet nozzle of the optical fiber storage bucket during flight, and, during the lead-out process, to adjust the direction and speed of the drone in real time according to the bending angle detected by the bending sensor at the optical fiber outlet nozzle; wherein the drone is equipped with an optical fiber storage bucket of the specified specifications, and one side of the optical fiber storage bucket has an optical fiber outlet nozzle, and the optical fiber outlet nozzle is provided with a bending sensor for detecting the bending angle of the optical fiber during the lead-out process; The storage bucket release module is connected to the optical fiber outlet control module and is used to release the optical fiber storage bucket in response to the drone arriving at the target base station so that the optical fiber can be extracted and connected to the target base station.

9. An emergency communication link deployment system, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to implement the emergency communication link deployment method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the emergency communication link deployment method according to any one of claims 1 to 7 is implemented.

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