High-rise multifunctional operation system based on mooring unmanned aerial vehicle

Abstract

The invention relates to a high-rise multifunctional operation system based on a mooring unmanned aerial vehicle. Comprising a roof base station, a gravity unloading device, a mooring cable and a mooring unmanned aerial vehicle. The roof base station is provided with a plurality of storage tanks, air compressors, relay stations and the like to realize medium storage, pressurized supply and energy data transmission; the gravity unloading device unloads the gravity of the cable through structures such as a base turntable, a suspension arm and a winding drum; the mooring cable integrates a cable, an optical fiber, a liquid pipe and an air pipe, and synchronously transmits energy, data and media; the mooring unmanned aerial vehicle is of a three-dimensional concentric orthogonal structure and is provided with 12 fan engines, a jet nozzle, a panoramic camera and a window breaking firing pin. According to the system, the design of roof parking and dual-mode operation is initiated, the endurance and supply bottleneck is broken through, seamless switching between high-rise cleaning and fire fighting is achieved, the operation efficiency and safety are improved, the comprehensive cost is reduced, and the requirements of super high-rise buildings are met.

Description

Technical Field

[0001] This invention relates to the technical field of high-altitude work equipment, specifically to a high-altitude multi-functional work system based on tethered unmanned aerial vehicles (UAVs). Background Technology

[0002] With the acceleration of urbanization, high-rise buildings have become a core component of modern urban spatial form, and their number and height continue to rise. The two core needs of high-rise exterior wall cleaning and emergency firefighting have long been constrained by technological bottlenecks, becoming pain points for the industry's development. In recent years, with the rise of drone technology, the industry has begun to explore the use of drones for high-rise exterior wall cleaning and emergency firefighting.

[0003] Existing drone cleaning solutions are mostly battery-powered. While this offers some improvement in flexibility, it is limited by core bottlenecks such as battery technology, payload capacity, and media supply, hindering commercial application. In terms of endurance, current civilian drones only have a flight time of 20-30 minutes, limiting the area covered per operation and failing to meet the needs of large-scale continuous cleaning of high-rise buildings. Regarding payload capacity, drone payload and endurance are negatively correlated; carrying sufficient cleaning fluid significantly shortens flight time, while reducing fluid load necessitates frequent refueling, resulting in extremely low efficiency. As for media supply, existing drone cleaning solutions often use built-in storage tanks, preventing continuous fluid supply. Furthermore, the precise ratio of cleaning agent to water is difficult to control, affecting cleaning effectiveness. Additionally, some roadside and vehicle-mounted tethered drones attempt to supply energy and media via ground cables, but cable length limitations become apparent when building height exceeds 100 meters, leading to insufficient water pressure and excessive energy loss, making them unsuitable for ultra-high-rise building operations.

[0004] In the field of high-rise firefighting, high-rise building fires are characterized by rapid fire spread, difficulty in evacuation, and complex rescue environments. Existing firefighting drones achieve initial fire suppression by carrying small fire extinguishing bombs, fire extinguishers, or connecting to ground-based liquid supply lines. However, these drones all have significant drawbacks: limited payload restricts the amount of fire extinguishing agent they can carry, making them only effective against small initial fires and ineffective against large-scale fires; some tethered firefighting drones attempt to supply fire extinguishing agents via ground cables, but face problems related to cable length, weight, and water pressure loss.

[0005] In addition to the aforementioned issue of limited functionality, existing high-rise cleaning and firefighting equipment also suffers from common shortcomings. First, the equipment procurement and maintenance costs are high. Cleaning and firefighting equipment are independent of each other, requiring building owners to purchase, install, and maintain two sets of equipment separately, significantly increasing operating costs. Second, operational flexibility is poor. Due to limitations imposed by physical tracks, lifting mechanisms, or site conditions, there are varying degrees of blind spots in operation, making them unsuitable for complex high-rise buildings. Third, endurance and supply bottlenecks are prominent. Traditional drones rely on battery power, resulting in short operating times and making them unable to perform long-term, high-intensity continuous operations. Ground-tethered equipment, on the other hand, is limited by cable length and voltage drop, making it difficult to handle ultra-high-rise buildings.

[0006] As high-rise buildings become taller and more complex, existing technologies can no longer meet the industry's demand for efficient, safe, and economical high-altitude work solutions. The market urgently needs a high-altitude work system that can overcome limitations in endurance and supply, achieve multi-functional integration, and adapt to complex building structures, in order to address the many pain points of traditional equipment. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a high-altitude multi-functional operation system based on tethered unmanned aerial vehicles (UAVs), which solves the problems mentioned in the background section. Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV), characterized in that it comprises: The rooftop base station, located on the roof of a high-rise building, includes, in sequence, a water tank, a cleaning agent tank, a fire extinguishing agent tank, an air compressor, and a relay station. Each of the three tanks—water, cleaning agent, and fire extinguishing agent—is equipped with an electronic valve and is connected to a mixing pump, which is connected to a pressurizer. The air compressor is also equipped with an electronic valve. The relay station contains a power supply. The gravity unloading device, installed on the roof of a high-rise building, includes a base turntable at the bottom, a 7-shaped boom and drum installed on the base turntable; The tethered cable is evenly wound on a reel, which contains electrical cables, optical fibers, liquid tubes, and air tubes. The tethered drone has two L-shaped connecting pipes symmetrically arranged on the left and right sides of the middle of the drone, which are the liquid outlet pipe and the air outlet pipe respectively. One end of the liquid outlet pipe and the air outlet pipe extends forward and is equipped with a jet nozzle at the end. The other end extends upward and is connected to a multi-functional end cap. Two panoramic cameras are symmetrically arranged on the left and right outer sides of the tethered drone.

[0009] Preferably, the bottom of the base turntable is a box-shaped cylinder, and the top is a circular rotating plate. The bottom end of the vertical section of the boom passes through the rotating plate, extends into the box-shaped bottom, and is fixedly connected to the rotating plate.

[0010] Preferably, the base turntable box-shaped bottom is provided with a vertical servo motor A, which is connected to the vertical section of the boom through a pair of meshing cylindrical gear sets, and a number of pulleys are evenly arranged along the straight line on the horizontal section of the boom.

[0011] Preferably, the drum is connected to a servo motor B, and a lead screw parallel to the central axis of the drum is provided on the outer side of the top of the drum. A nut block is matched and installed on the lead screw, and a servo motor C is connected to one end of the lead screw.

[0012] Preferably, one end of the tethered cable extends towards the rooftop base station, and the cables and optical fibers inside are connected to the relay station, the liquid pipe is connected to the pressurizer, and the air pipe is connected to the air compressor.

[0013] Preferably, the other end of the tethering cable extends upward and is connected in sequence to a nut block and several pulleys, and then downward to the multi-functional end of the tethered drone.

[0014] Preferably, the multi-functional terminal is further provided with an optical fiber interface for connection to an optical fiber, a power interface for connection to a cable, a liquid tube for connection to an outlet tube, and an air tube for connection to an outlet tube.

[0015] Preferably, the tethered drone is provided with a tail fin marking at the rear, and a window-breaking pin is provided between the two jet nozzles.

[0016] This invention provides a high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV), which has the following beneficial effects: 1. This invention integrates high-rise cleaning and firefighting functions into a single system platform. Through the multi-tank design of the rooftop base station, the media distribution function of the mixing pump, and the mode switching capability of the jet nozzles, it achieves seamless integration of the two operating modes. Compared to the traditional industry model where cleaning and firefighting equipment are purchased and maintained separately, this system significantly reduces equipment procurement costs, installation costs, and subsequent maintenance costs in the construction industry. Simultaneously, it improves equipment utilization, avoids resource idleness, and provides the industry with a more economical solution.

[0017] 2. This invention abandons the traditional battery-powered model of drones, obtaining continuous and stable power from a relay station on the rooftop via a tethered cable. This completely solves the industry pain point of short flight time, enabling drones to perform long-duration, high-intensity continuous operations. Simultaneously, the liquid and gas pipes in the tethered cable ensure a continuous supply of cleaning fluid, fire extinguishing agent, and high-pressure gas, eliminating the need for drones to carry storage tanks or frequently return to refuel, significantly improving operational efficiency. Furthermore, the rooftop deployment design shortens the length of the tethered cable, reducing pressure loss and energy consumption during media transport, effectively meeting the needs of high-rise building operations.

[0018] 3. The gravity unloading device's base turntable can rotate precisely, and the boom, in conjunction with pulleys, enables flexible cable guidance. The coordinated work of the drum and lead screw ensures even cable winding and unwinding, allowing the tethered drone to cover multiple parts of the building and significantly eliminating blind spots in traditional equipment. The tethered drone's 12 fan engines enable precise three-dimensional attitude control, which, combined with the panoramic camera's visual recognition and the laser rangefinder's distance control, ensures that the drone maintains the optimal distance and angle with the work surface. This allows the jet nozzle's sprayed medium to precisely act on the target area, improving the cleanliness of the cleaning and the effectiveness of fire extinguishing.

[0019] 4. This system uses a gravity unloading device to bear most of the weight of the tethered cable, reducing the load pressure on the drone and lowering the risk of drone collisions and crashes; the tethered design of the drone makes its flight trajectory controllable, avoiding the risk of loss of control during the flight of traditional drones; during the operation, operators do not need to work at height, but only need to operate remotely from the ground control center, completely eliminating the direct threat to personnel safety posed by traditional high-altitude operations.

[0020] 5. All components of this system adopt a modular design. The storage tank, pump body, air compressor and other components of the rooftop base station can be flexibly added, removed or replaced according to the building requirements. The operation module of the tethered drone can be upgraded and optimized according to actual needs. The length of the tethered cable can be adapted to buildings of different heights. At the same time, the system adopts a standardized interface design, which facilitates later maintenance and upgrades. It can be adapted to high-rise buildings of different structures and heights, and has a wide range of application scenarios and good industrialization prospects. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the workflow of the present invention; Figure 2 This is a schematic diagram illustrating the operation of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention; Figure 4 for Figure 3 A partial sectional view of the front view; Figure 5 A three-dimensional structural diagram of a tethered drone; Figure 6 This is a schematic diagram of the cross-section of the tethered cable; In the diagram: 1. Rooftop base station; 101. Water tank; 102. Cleaning agent storage tank; 103. Fire extinguishing agent storage tank; 104. Air compressor; 105. Relay station; 106. Electronic valve; 107. Mixing pump; 108. Pressurizer; 2. Gravity unloading device; 201. Base turntable; 2011. Rotating plate; 2012. Servo motor A; 2013. Cylindrical gear set; 202. Crane boom; 2021. Pulley; 203. Drum; 204. 1. Servo motor B; 2032. Lead screw; 2033. Nut block; 2034. Servo motor C; 3. Tethering cable; 301. Cable; 302. Optical fiber; 303. Liquid tube; 304. Air tube; 4. Tethered drone; 401. Fan engine; 402. Liquid outlet tube; 403. Air outlet tube; 404. Jet nozzle; 405. Multifunctional end cap; 406. Panoramic camera; 407. Tail fin marking; 408. Window breaking pin. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Example 1: Please refer to Figures 1 to 6 A high-altitude multi-functional operation system based on tethered unmanned aerial vehicles (UAVs), comprising: The rooftop base station (1) is located on the roof of a high-rise building and includes a water tank (101), a cleaning agent storage tank (102), a fire extinguishing agent storage tank (103), an air compressor (104), and a relay station (105) arranged in sequence. Each of the water tank (101), the cleaning agent storage tank (102), and the fire extinguishing agent storage tank (103) is equipped with an electronic valve (106), and all three are connected to a mixing pump (107). The mixing pump (107) is connected to a pressurizer (108). The air compressor (104) is also equipped with an electronic valve (106). The relay station (105) is equipped with a power supply. The gravity unloading device (2) is installed on the roof of a high-rise building and includes a base turntable (201) at the bottom, a 7-shaped boom (202) and a drum (203) installed on the base turntable (201). The tethered cable (3) is evenly wound on the drum (203), which contains a cable (301), an optical fiber (302), a liquid tube (303), and an air tube (304). The tethered drone (4) is shaped as three thin-walled cylinders that are three-dimensionally concentric and orthogonal. Each thin-walled cylinder is uniformly provided with four fan engines (401) along the circumference. The tethered drone (4) is symmetrically provided with two L-shaped connecting pipes on the left and right sides of the middle, namely the liquid outlet pipe (402) and the air outlet pipe (403). One end of the liquid outlet pipe (402) and the air outlet pipe (403) extends forward and is provided with a jet nozzle (404) at the same end. The other end extends upward and is connected to a multi-functional end head (405). The tethered drone (4) is symmetrically provided with two panoramic cameras (406) on the left and right outer sides.

[0026] The rooftop base station (1), as the core supply unit of the system, adopts a modular integrated design, with each component arranged in a reasonable layout, facilitating maintenance and operation. Among them, the water tank (101), cleaning agent storage tank (102), and fire extinguishing agent storage tank (103) are all equipped with electronic valves (106), which have precise quantity control functions and can flexibly adjust the output of the medium according to the operational needs; the three are connected to a mixing pump (107), which can achieve precise mixing of water and cleaning agent, and water and fire extinguishing agent, and can also dispense liquid separately to adapt to the medium requirements of different operational scenarios; the pressure booster (108) connected to the mixing pump (107) can pressurize the mixed medium to a preset pressure to ensure that the medium sprayed by the jet nozzle (404) has sufficient impact force to meet the cleaning or fire extinguishing needs. The air compressor (104) can continuously provide high-pressure gas for blowing off floating dust on the building surface or for auxiliary functions. The relay station (105) has a built-in power supply, which not only provides a continuous and stable power supply for the tethered drone (4), but also serves as a data transmission hub, enabling the issuance of control commands and the reception of data transmitted back by the drone. It controls various parts of the rooftop base station (1) (which can be achieved through cables or wireless modules) to ensure the stability and real-time performance of the system's remote control. The entire station is set up on the rooftop of a high-rise building, making it suitable for the operational needs of super high-rise buildings.

[0027] The gravity unloading device (2) is a key structure for ensuring the stable operation of the tethered drone (4), and it adopts an integrated design of mechanical transmission and guidance. The boom (202) adopts a 7-shaped structure, which takes into account both load-bearing and guiding functions. Several pulleys (2021) are evenly arranged along the straight line on its horizontal section, which can change the force direction of the tethered cable (3), reduce the friction between the cable and the boom, and extend the service life of the cable. The drum (203) is connected to the servo motor B (2031), which can realize the precise winding and unwinding of the tethered cable (3). This device bears most of the weight of the tethered cable (3) through mechanical structure, effectively unloading the load pressure of the drone, improving the hovering stability of the drone, and at the same time, it can flexibly adjust the working angle and range through multi-dimensional adjustment, eliminating blind spots in the operation.

[0028] The tethered cable (3) adopts a lightweight and high-strength composite structure design, with an external carbon fiber tube sleeve, which combines lightweight and tensile strength, wear resistance, and high temperature resistance, effectively protecting the internal components and reducing the impact of its own weight on the UAV's load. The cable integrates four major channels: cable (301), optical fiber (302), liquid tube (303), and gas tube (304), realizing the synchronous transmission of energy, data, liquid media, and gas media, eliminating the need to lay multiple cables separately and simplifying the system structure. The cable (301) is responsible for stably transmitting power from the relay station (105) to the tethered drone (4), ensuring continuous operation of the drone; the optical fiber (302) has high-speed data transmission capability, which can transmit high-definition video captured by the panoramic camera (406), drone flight telemetry data and operation parameters in real time, while ensuring the rapid issuance of control commands and realizing remote and precise control; the liquid pipe (303) is the conveying channel for high-pressure liquid media (cleaning fluid, fire extinguishing agent), which is adapted to the high-pressure output requirements of the pressurizer (108) to ensure stable delivery of the media; the gas pipe (304) is responsible for transmitting high-pressure gas provided by the air compressor (104), providing support for gas-liquid mixed operation or single gas operation. The integrated design of this cable solves the problem of separation of energy, data and media transmission in traditional equipment, and greatly improves the system integration and operational reliability.

[0029] The tethered UAV (4) adopts a three-dimensional concentric orthogonal structure of three thin-walled cylinders, which is compact and uniformly stressed, and has good aerodynamic performance and wind resistance. Each thin-walled cylinder is uniformly equipped with four fan engines (401) along the circumference, for a total of 12 fan engines, which are responsible for flight attitude control in the x, y, and z axes, respectively. This enables the UAV to perform precise hovering, translation, and turning actions, and can maintain a stable operating attitude even in complex wind environments. The two L-shaped connecting pipes (liquid outlet pipe 402 and air outlet pipe 403) are symmetrically arranged in the middle of the UAV. The layout is reasonable and does not affect the flight attitude. One end of each pipe is equipped with a jet nozzle (404). The other end is connected to a multi-functional end (405), which integrates fiber optic interface, power interface, liquid interface, and gas interface. This allows for quick and precise connection with the corresponding components of the tethered cable (3), achieving seamless connection of energy, data, and media. Two panoramic cameras (406) symmetrically arranged on the left and right outer sides of the drone can achieve 360-degree scanning of the work area without blind spots. In conjunction with a laser rangefinder (not specifically shown in this embodiment), it can accurately identify the location of stains or fire sources and control the distance between the drone and the work surface to ensure the accuracy of the operation.

[0030] The base turntable (201) has a box-shaped cylindrical bottom and a circular rotating plate (2011) at the top. The bottom end of the vertical section of the boom (202) extends through the rotating plate (2011) into the box-shaped bottom and is fixedly connected to the rotating plate (2011). The vertical servo motor A (2012) inside the box-shaped bottom of the base turntable (201) is connected to the vertical section of the boom (202) through a pair of meshing cylindrical gear sets (2013). The transmission accuracy is high, which can realize the precise rotation of the boom (202) and expand the working coverage area.

[0031] The base turntable (201) has a vertical servo motor A (2012) inside its box-shaped bottom. The servo motor A (2012) is connected to the vertical section of the boom (202) through a pair of meshing cylindrical gear sets (2013). Several pulleys (2021) are evenly arranged along the straight line on the horizontal section of the boom (202).

[0032] The drum (203) is connected to a servo motor B (2031) via a chain drive. A lead screw (2032) parallel to the central axis of the drum (203) is provided on the outer top of the drum (203). A nut block (2033) is matched and installed on the lead screw (2032). One end of the lead screw (2032) is connected to a servo motor C (2034). With the lead screw (2032) and the matching nut block (2033) on the outer top of the drum (2032) parallel to the central axis of the drum, the nut block (2033) moves at a constant speed along the lead screw (2032) under the drive of the servo motor C (2034), ensuring that the tethered cable (3) is evenly wound on the drum (203) and avoiding cable tangling.

[0033] One end of the tethered cable (3) extends toward the rooftop base station. The cable (301) and optical fiber (302) inside are connected to the relay station (105), the liquid pipe (303) is connected to the pressurizer (108), and the air pipe (304) is connected to the air compressor (104).

[0034] The other end of the tethering cable (3) extends upward and connects to the nut block (2033) and several pulleys (2021) in sequence, and then connects downward to the multi-functional end (405) of the tethered drone (4).

[0035] The multi-functional terminal (405) is also provided with an optical fiber interface connected to an optical fiber (302), a power interface connected to a cable (301), a liquid tube (303) connected to an outlet tube (402), and an air tube (304) connected to an outlet tube (403).

[0036] The tethered drone (4) is equipped with a tail fin marking (407) at the rear and a window-breaking pin (408) between the two jet nozzles (404). The tail fin marking (407) at the rear of the drone facilitates the operator's identification of the drone's flight direction and attitude, improving operational safety. The window-breaking pin (408) between the two jet nozzles (404) can be used to break windows in fire emergency scenarios, allowing the extinguishing agent to enter the enclosed room and improving the fire extinguishing effect.

[0037] Working process: Mode 1: Automatic cleaning operation.

[0038] The operator selects the target cleaning area in the control center, sets parameters such as the ratio of cleaning agent to clean water, spray pressure, and operation path, and issues a cleaning start command. The command is sent to the relay station (105) of the rooftop base station (1) via the data transmission network.

[0039] After receiving the instruction, the relay station (105) synchronously starts the relevant drive components of the mixing pump (107), pressurizer (108) and gravity unloading device (2) of the rooftop base station (1); the electronic valves (106) on the water tank (101) and the cleaning agent storage tank (102) are precisely opened according to the preset ratio, the medium flows into the mixing pump (107) and is fully mixed, and the mixed cleaning liquid is pressurized by the pressurizer (108) and then transported to the tethered cable (3) through the liquid pipe (303); at the same time, the air compressor (104) is started, and the high-pressure gas is synchronously transported through the air pipe (304).

[0040] Servo motor B (2031) drives drum (203) to rotate and release tethered cable (3). Simultaneous servo motor C (2034) drives screw (2032) to rotate. Nut block (2033) moves at a constant speed along screw (2032) to ensure that tethered cable (3) is smoothly lowered after being guided by pulley (2021).

[0041] The tethered drone (4) obtains power from the cable (301) through the power interface of the multi-functional terminal (405), the fan engine (401) starts, and the drone flies autonomously to the predetermined cleaning starting point; the panoramic camera (406) begins to scan the work area, identifies the distribution of stains and transmits the data back to the control center; the laser rangefinder measures the distance between the drone and the wall in real time, and the feedback data is transmitted to the relay station (105) via fiber optic (302); the control center fine-tunes the drone position based on the feedback data to ensure that the optimal working distance between the drone and the wall is maintained.

[0042] The control center issues a cleaning operation command, which is transmitted to the tethered drone (4) via fiber optic cable (302). The jet nozzle (404) is turned on and sprays out a gas-liquid mixture according to the preset mode. At the same time, the servo motor A (2012) drives the base turntable (2011) to rotate through the cylindrical gear set (2013), which drives the boom (202) to adjust the working angle. The tethered drone (4) flies at a constant speed along the planned path to clean the wall surface.

[0043] During the cleaning process, the panoramic camera (406) continuously monitors the operation results. If stubborn stains are found, the pressure of the pressurizer (108) and the air supply of the air compressor (104) are adjusted to increase the impact force of the gas-liquid mixture until the stains are removed.

[0044] After the cleaning operation is completed, the control center issues a return command. Servo motor B (2031) rotates in the opposite direction, and the drum (203) retrieves the mooring cable (3). Servo motor C (2034) drives the lead screw (2032) to rotate in the opposite direction, and the nut block (2033) resets. The moored UAV (4) returns to the rooftop docking point along the original path. The electronic valve (106), mixing pump (107), pressurizer (108), and air compressor (104) are closed in sequence, and the operation ends.

[0045] Mode 2: Manual firefighting operation.

[0046] Upon receiving a fire alarm from a high-rise building, the operator quickly switches the system to fire mode, inputs parameters such as the approximate location of the fire and the building height in the control center, and issues fire operation instructions to the relay station (105).

[0047] After receiving the instruction, the relay station (105) starts the mixing pump (107) and pressurizer (108) of the rooftop base station (1), closes the electronic valve (106) of the cleaning agent storage tank (102), and opens the electronic valves (106) of the water tank (101) and the fire extinguishing agent storage tank (103). The two media enter the mixing pump (107) in a preset ratio to mix, and after being pressurized by the pressurizer (108), they are transported through the liquid pipe (303). The air compressor (104) is turned on or off according to the fire extinguishing requirements.

[0048] Servo motor B (2031) drives drum (203) to quickly release tethered cable (3), servo motor C (2034) drives nut block (2033) to move along screw (2032) to ensure the cable is lowered smoothly; the fan engine (401) of tethered drone (4) is started, and the operator receives real-time images transmitted back by panoramic camera (406) through the control center and controls the drone to fly to the fire area.

[0049] The operator uses a panoramic camera (406) and a thermal imager to accurately locate the fire. If the fire is located in a closed room, the operator controls the tethered drone (4) to approach the window and controls the window-breaking pin (408) to strike the glass to break the window.

[0050] After the window is broken, the operator adjusts the jet nozzle (404) to spray extinguishing agent to cool and isolate the fire site and control the fire. During the operation, the servo motor A (2012) drives the base turntable (2011) to rotate, and the boom (202) adjusts the angle to cooperate with the movement of the drone to ensure that the extinguishing agent fully covers the fire area.

[0051] After the fire was extinguished, the operator used the drone to conduct a comprehensive inspection of the fire site. After confirming that there was no risk of reignition, the operator issued a return command. The servo motor B (2031) rotated in the opposite direction to retrieve the mooring cable (3). The drone returned to the rooftop docking point and shut off components such as the electronic valve (106), mixing pump (107), and pressurizer (108), thus ending the firefighting operation.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention, such as changing the type, structure, material, and quantity of the drone, drum, boom, mooring cable, and storage tank. All such changes should be covered within the scope of protection of the present invention.

Claims

1. A high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV), characterized in that, include: The rooftop base station (1) is located on the roof of a high-rise building and includes a water tank (101), a cleaning agent storage tank (102), a fire extinguishing agent storage tank (103), an air compressor (104), and a relay station (105) arranged in sequence. Each of the water tank (101), the cleaning agent storage tank (102), and the fire extinguishing agent storage tank (103) is equipped with an electronic valve (106), and all three are connected to a mixing pump (107). The mixing pump (107) is connected to a pressurizer (108). The air compressor (104) is also equipped with an electronic valve (106). The relay station (105) is equipped with a power supply. The gravity unloading device (2) is installed on the roof of a high-rise building and includes a base turntable (201) at the bottom, a 7-shaped boom (202) and a drum (203) installed on the base turntable (201). The tethered cable (3) is evenly wound on the drum (203), which contains a cable (301), an optical fiber (302), a liquid tube (303), and an air tube (304). The tethered drone (4) has two L-shaped connecting pipes symmetrically arranged on the left and right sides of the middle part, namely the liquid outlet pipe (402) and the air outlet pipe (403). One end of the liquid outlet pipe (402) and the air outlet pipe (403) extends forward and is equipped with a jet nozzle (404) at the end. The other end extends upward and is connected to a multi-functional end head (405). Two panoramic cameras (406) are symmetrically arranged on the left and right outer sides of the tethered drone (4).

2. The high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV) according to claim 1, characterized in that: The base turntable (201) has a box-shaped cylindrical bottom and a circular rotating plate (2011) at the top. The bottom end of the vertical section of the boom (202) passes through the rotating plate (2011) and extends into the box-shaped bottom and is fixedly connected to the rotating plate (2011).

3. A high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV) according to claim 2, characterized in that: The base turntable (201) has a vertical servo motor A (2012) inside its box-shaped bottom. The servo motor A (2012) is connected to the vertical section of the boom (202) through a pair of meshing cylindrical gear sets (2013). Several pulleys (2021) are evenly arranged along the straight line on the horizontal section of the boom (202).

4. A high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV) according to claim 3, characterized in that: The drum (203) is connected to a servo motor B (2031). A lead screw (2032) parallel to the central axis of the drum (203) is provided on the outer side of the top of the drum (203). A nut block (2033) is matched and installed on the lead screw (2032). One end of the lead screw (2032) is connected to a servo motor C (2034).

5. A high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV) according to claim 4, characterized in that: One end of the tethered cable (3) extends toward the rooftop base station. The cable (301) and optical fiber (302) inside are connected to the relay station (105), the liquid pipe (303) is connected to the pressurizer (108), and the air pipe (304) is connected to the air compressor (104).

6. A high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV) according to claim 5, characterized in that: The other end of the tethering cable (3) extends upward and connects to the nut block (2033) and several pulleys (2021) in sequence, and then connects downward to the multi-functional end (405) of the tethered drone (4).

7. A high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV) according to claim 6, characterized in that: The multi-functional terminal (405) is also provided with an optical fiber interface connected to an optical fiber (302), a power interface connected to a cable (301), a liquid tube (303) connected to an outlet tube (402), and an air tube (304) connected to an outlet tube (403).

8. A high-altitude multi-functional operation system based on a tethered unmanned aerial vehicle (UAV) according to claim 7, characterized in that: The tethered drone (4) is equipped with a tail fin marking (407) at the rear and a window-breaking pin (408) between the two jet nozzles (404).

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