House external structure safety collaborative monitoring equipment based on unmanned aerial vehicle cluster

Abstract

The invention discloses a house external structure safety cooperative monitoring device based on an unmanned aerial vehicle cluster, and relates to the technical field of unmanned aerial vehicle parking tools. Through cooperation of an air inlet pipe, an exhaust pipe and a cooling fan, the unmanned aerial vehicle is cooled, the cooling efficiency of the unmanned aerial vehicle is improved, and then the efficient cooling function of the unmanned aerial vehicle can be achieved; whether humidity affects filtering of a filter plate or not is judged through an analysis module on the basis of temperature, water vapor partial pressure and final humidity in equipment, when the moisture content in the equipment reaches 80% of the moisture content corresponding to a humidity threshold value, humidity control operation is started, sufficient adjusting time is reserved, the phenomenon that the filter plate enters a vicious circle of blockage-heat dissipation failure due to continuous humidity rising is avoided, and the service life of the filter plate is prolonged. And the heat dissipation mechanism can stably discharge heat of the unmanned aerial vehicle through the exhaust pipe, the heat dissipation efficiency during charging of the unmanned aerial vehicle is guaranteed, and the problems of battery swelling, circuit faults and the like caused by high temperature are solved.

Description

Technical Field

[0001] This invention relates to the field of drone parking equipment technology, and in particular to a collaborative monitoring device for the safety of building exterior structures based on drone swarms. Background Technology

[0002] Traditional building external structural safety monitoring relies heavily on manual inspections. Inspectors need to use scaffolding, ladders, and other tools to reach various parts of the building's exterior, using visual observation and handheld instruments to determine if there are safety hazards such as cracks, spalling, or deformation. However, this method has many obvious drawbacks. While some building monitoring devices based on individual drones have emerged with technological advancements, they still have limitations: First, existing equipment lacks the ability to systematically quantify and analyze the safety of building external structures, only acquiring basic data such as images. It cannot establish a hazard assessment model based on core parameters such as crack width, structural tilt, and component deflection, making it difficult to accurately determine the structural safety level. Second, monitoring data processing relies on manual post-analysis, lacking a real-time, intelligent data analysis mechanism, making it impossible to promptly identify safety hazards and generate early warning signals, leading to delays in hazard response. Third, it does not consider the interference of long-term structural deterioration factors (such as material aging and steel corrosion) and environmental impacts (such as foundation settlement) on safety assessments, resulting in insufficient comprehensiveness and timeliness of monitoring results, making it difficult to meet the safety monitoring needs of complex building structures.

[0003] During drone monitoring, a series of issues arise, including drone storage, charging, heat dissipation, and landing safety. Existing equipment often has rudimentary drone parking and charging facilities, lacking effective buffering mechanisms, making drones vulnerable to damage upon landing. Furthermore, since most drones are in a closed state during charging, excessively high internal temperatures and insufficient heat dissipation can affect the drone's normal operation and lifespan.

[0004] Therefore, the above-mentioned problems need to be addressed and improved. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a collaborative monitoring device for the safety of building exterior structures based on unmanned aerial vehicle (UAV) swarms.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a collaborative monitoring device for the safety of the external structure of a building based on a drone swarm, including a helipad and cabins located on both sides above the helipad, a heat dissipation mechanism is installed on the helipad and the cabins, a buffer mechanism is installed inside the helipad, a drone is placed on the buffer mechanism, and a solar panel is installed on the top surface of the cabin.

[0007] The helipad is equipped with intelligent control components, which include a data acquisition module, an analysis module, and an execution module.

[0008] The data acquisition module collects humidity and temperature data from inside and outside the equipment and transmits the collected data to the analysis module.

[0009] The analysis module receives and preprocesses the data from the acquisition module. Based on temperature and water vapor partial pressure, it calculates the humidity levels inside and outside the equipment and analyzes the humidity changes inside the equipment. It determines whether the final humidity inside the equipment will affect the filter plate's filtration operation. If it determines that it will have an impact, it generates a humidity control signal and transmits it to the execution module. It also analyzes the adjustment range of the air inlet based on the final humidity inside the equipment.

[0010] The execution module receives signals from the analysis module and performs corresponding operations.

[0011] Preferably, the analysis module performs the following steps to analyze humidity changes:

[0012] K1: Temperature The partial pressure of saturated water vapor at that time is Actual water vapor partial pressure , Relative humidity, Saturated water vapor partial pressure; moisture content ,in , Standard atmospheric pressure and These are the gas constants for dry air and water vapor, respectively.

[0013] K2: Calculate the humidity of the outside air respectively. Initial moisture content inside the equipment Humidity change inside the equipment , This refers to the mass flow rate of gas discharged from the device. The total mass of the air inside the equipment; based on the final moisture content. Calculate the final water vapor partial pressure The final humidity inside the equipment Final humidity change , The final saturated water vapor partial pressure, The initial humidity inside the equipment;

[0014] K3: Final humidity data Compared with preset humidity threshold data If a comparison is made, If the final humidity level is too high, it will affect the filtration operation of the filter plate (12) at the outlet of the exhaust trough; achieve When the moisture content reaches 80%, a humidity control signal is generated and transmitted to the execution module.

[0015] Preferably, the analysis module performs the following steps to analyze the size of the air vent:

[0016] R1: Filter plate area attenuation coefficient , Moisture absorption sensitivity coefficient of the adhering substance; effective filtration area ; Filter flow rate , This is the proportionality coefficient; The filtration flow rate gradually decreases as humidity increases. It also gradually decreased, in At that time, the humidity data was recorded and denoted as follows. , This refers to the intake airflow rate;

[0017] R2: Inlet size , This is a proportionality coefficient; it is used to calculate the effective filtration area corresponding to the final internal humidity. and according to Calculate the final flow affected To reduce the rate of increase in humidity inside the equipment, the intake air flow rate needs to be reduced. ,but ,but .

[0018] Preferably, the steps for the analysis module to perform safety analysis on the external structure of the building are as follows:

[0019] M1: Based on crack width Risk factor , For the allowable crack width of the material, This is a material aging correction factor; based on structural tilt. Risk factor , To allow for tilt, This is a height correction factor; based on component deflection. Risk factor , To allow for deflection, This is a load correction factor; based on settlement rate. Risk factor , To allow for the settling rate, This is a correction factor for the foundation type; based on the compressive strength of concrete cubes. Risk factor , To determine the strength value corresponding to the design concrete strength grade, This is a correction factor for service life; based on the steel corrosion rate. Risk factor , The original yield strength of the steel reinforcement. To allowable yield strength;

[0020] M2: Overall Risk Factor , These are the weighting coefficients for the corresponding items. ;exist When this happens, a warning signal is generated and transmitted to the execution module. This is a preset risk factor threshold.

[0021] Preferably, two first mounting slots are provided at the front end of the helipad. A first motor is installed in the first mounting slot. A worm gear is installed at the upper end of the output end of the first motor via a coupling. A worm wheel is engaged with one side of the worm gear. A rotating rod is fixedly connected to the middle of the worm wheel. Both ends of the rotating rod pass through the front and rear ends of the helipad and are rotatably connected to the helipad. Connecting rods are fixedly connected to both ends of the rotating rod. Two connecting rods on the same side are located at the front and rear ends of the helipad, and the other ends of the two connecting rods on the same side are respectively hinged to the front and rear end faces of the cabin on the same side. A second motor is installed on the inner side of the rear end of the cabin. The output end of the second motor is fixedly connected to one end of the rear connecting rod, and the two first motors rotate in opposite directions.

[0022] Preferably, the heat dissipation mechanism includes multiple air intake pipes on the cabin, an exhaust pipe inside the helipad, and an exhaust trough inside the helipad. Multiple downward-facing air inlets are equidistantly arranged on the air intake pipes, and all of the air inlets are located directly above the UAV. The top of the exhaust pipe communicates with the interior of the cabin, and the bottom of the exhaust pipe communicates with the exhaust trough.

[0023] Preferably, a filter plate is installed at the opening of the exhaust groove, and a mounting bracket is provided on the inner side of the two filter plates. The mounting bracket is fixed to the inner side of the exhaust groove, and a third motor is installed at the rear end of the mounting bracket. A cooling fan is installed at the output end of the third motor through a coupling, and the cooling fan is located at the front end of the mounting bracket.

[0024] Preferably, the buffer mechanism includes a second mounting slot located inside the landing pad, directly below the UAV. A cylinder is installed in the second mounting slot, and a mounting plate is installed on the upper end of the cylinder's output end. A landing platform is installed at each of the four corners of the top surface of the mounting plate, and the landing platform is located at the upper end of the landing pad's top surface, with a rubber pad installed on the landing platform.

[0025] Preferably, two first charging rings are installed at the center of the top surface of the helipad, and a receiver is installed at the front end of the first charging ring.

[0026] Preferably, the drone is equipped with a camera and a thermal imaging device at its front end, with the thermal imaging device mounted below the camera. The drone is also equipped with two second charging rings that work in conjunction with the first charging ring at its bottom end. The front end of each second charging ring is equipped with a transmitter that works in conjunction with a receiver, and the rear end of each second charging ring is equipped with a locator.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. By combining the air intake pipe, exhaust pipe, and cooling fan, air from the cabin is allowed to pass around the drone before entering the exhaust duct through the exhaust pipe and being discharged, thus cooling the drone and improving its heat dissipation efficiency. This enables highly efficient heat dissipation. Furthermore, the combination of the cylinder and rubber pads allows the landing platform to receive the drone, with the rubber pads acting as a buffer, facilitating a smooth landing and improving safety. The receiver and transmitter work together to facilitate precise drone positioning and landing. The combination of thermal imaging and a locator allows for accurate drone location tracking and comprehensive monitoring of the building's external structural safety. Ultimately, this solution addresses the problems of poor drone heat dissipation, insufficient landing safety, and inadequate monitoring in existing devices.

[0029] 2. The analysis module determines whether humidity will affect filter plate filtration based on temperature, water vapor partial pressure, and final humidity inside the equipment. When the humidity content inside the equipment reaches 80% of the humidity threshold, the humidity control operation is initiated, allowing sufficient adjustment time to prevent the filter plate from entering a vicious cycle of "clogging-heat dissipation failure" due to continuously rising humidity. This ensures that the filter plate is always in the effective filtration range, and the heat dissipation mechanism can stably expel the heat from the drone through the exhaust pipe, ensuring the heat dissipation efficiency of the drone during charging and avoiding problems such as battery bulging and circuit failure caused by high temperature.

[0030] 3. The analysis module constructs hazard factor calculation models for six core parameters: crack width, structural tilt, component deflection, settlement rate, concrete cube compressive strength, and steel corrosion rate. This covers all dimensions of safety indicators for the external structure of a building, from surface defects to material properties, avoiding the biased assessment caused by parameter omissions in traditional manual monitoring. The model incorporates material aging correction coefficients, height correction coefficients, and load correction coefficients, fully considering the impact of personalized factors such as building service time, building height, and actual load on safety assessment. This makes the hazard factor calculation more closely reflect the actual working conditions of the building and significantly improves the accuracy of the assessment results. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0032] Figure 1 This is a schematic diagram of the overall appearance of the device proposed in this invention;

[0033] Figure 2 This is a rear view schematic diagram of the overall appearance of the device proposed in this invention;

[0034] Figure 3 This is a schematic diagram of the internal structure of the device proposed in this invention;

[0035] Figure 4 This is a schematic diagram of the helipad structure proposed in this invention;

[0036] Figure 5 This is a schematic diagram of the overall cross-sectional structure of the device proposed in this invention;

[0037] Figure 6 This is a schematic diagram of the cabin mechanism structure proposed in this invention;

[0038] Figure 7 This is a schematic diagram of the cooling fan structure proposed in this invention;

[0039] Figure 8 This is a schematic diagram of the buffer mechanism structure proposed in this invention;

[0040] Figure 9 This is a schematic diagram of the UAV structure proposed in this invention;

[0041] Figure 10 This is a bottom view schematic diagram of the UAV structure proposed in this invention;

[0042] Figure 11 This is a flowchart of the system proposed in this invention.

[0043] Numbered in the diagram: 1. Helipad; 2. Cabin; 3. Drone; 4. Solar panel; 5. First motor; 6. Worm gear; 7. Worm wheel; 8. Rotary rod; 9. Connecting rod; 10. Intake pipe; 11. Exhaust pipe; 12. Filter plate; 13. Third motor; 14. Cooling fan; 15. Cylinder; 16. Helipad; 17. Rubber pad; 18. First charging ring; 19. Receiver; 20. Second motor; 21. Camera; 22. Thermal imaging; 23. Second charging ring; 24. Transmitter; 25. Positioner. Detailed Implementation

[0044] 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.

[0045] Example 1: See Figures 1 to 10 The building exterior structure safety collaborative monitoring device based on drone swarm in this invention includes a helipad 1 and cabins 2 located on both sides above the helipad 1. The helipad 1 facilitates the placement and charging of drones 3. Heat dissipation mechanisms are installed on the helipad 1 and cabins 2. A buffer mechanism is installed inside the helipad 1, on which the drones 3 are placed, facilitating the detection of the building exterior structure. Furthermore, solar panels 4 are installed on the top surface of the cabins 2, providing stored electricity for the drones 3 and the electrical components inside the device. Source; Two first mounting slots are opened at the front end of the helipad 1. A first motor 5 is installed in the first mounting slot, which drives the worm gear 6 to rotate. The worm gear 6 is installed at the upper end of the output end of the first motor 5 through a coupling, which drives the worm wheel 7 to rotate. The worm gear 7 is meshed with one side of the worm gear 6. A rotating rod 8 is fixedly connected to the middle of the worm wheel 7, which drives four connecting rods 9 to rotate and open the cabin 2. Both ends of the rotating rod 8 pass through the front and rear ends of the helipad 1 and are rotatably connected to the helipad 1. The two ends of the rotating rod 8 are fixedly connected to the connecting rods 9. Two connecting rods 9 on the same side are located at the front and rear ends of the apron 1, and the other ends of the two connecting rods 9 on the same side are respectively hinged to the front and rear end faces of the cabin 2 on the same side. A second motor 20 is installed on the inner side of the rear end of the cabin 2. The second motor 20 facilitates the driving of the rotating rod 8 to rotate in the opposite direction to adjust the balance of the cabin 2. The output end of the second motor 20 is fixedly connected to one end of the rear connecting rod 9, and the two first motors 5 rotate in opposite directions. The heat dissipation mechanism includes multiple air intake pipes 10 opened on the cabin 2, an exhaust pipe 11 opened inside the apron 1, and an exhaust trough opened inside the apron 1. The exhaust pipes... 11 facilitates the extraction of air after heat exchange with UAV 3; multiple downward air inlets are equidistantly opened on the air inlet pipe 10, all of which are located directly above UAV 3; the top of the exhaust pipe 11 is connected to the interior of the cabin 2, and the bottom of the exhaust pipe 11 is connected to the exhaust channel; a filter plate 12 is installed at the opening of the exhaust channel, which helps to prevent debris from entering and clogging the exhaust channel; a mounting bracket is provided on the inner side of the two filter plates 12, and the mounting bracket is fixed to the inner side of the exhaust channel, and a third motor 13 is installed at the rear end of the mounting bracket, which helps to drive the cooling fan 14 to rotate.

[0046] In this invention, a cooling fan 14 is mounted on the output end of the third motor 13 via a coupling, which facilitates the extraction of hot air from the equipment. The cooling fan 14 is located at the front end of the mounting frame. The buffer mechanism includes a second mounting slot opened inside the landing pad 1, located directly below the drone 3. A cylinder 15 is installed in the second mounting slot, which facilitates the lifting and lowering of the landing platform 16. A mounting plate is installed on the upper end of the output end of the cylinder 15, and landing platforms 16 are installed at the four corners of the top surface of the mounting plate. The landing platforms 16 work with the rubber pads 17 to buffer the weight of the drone 3 when it lands, preventing damage. The landing platforms 16 are located at the upper end of the top surface of the landing pad 1, and rubber pads 17 are installed on the landing platforms 16. Two first charging pads are installed at the center of the top surface of the landing pad 1. The first charging ring 18 facilitates wireless charging of the drone 3 by contacting the second charging ring 23. A receiver 19 is installed at the front end of the first charging ring 18, which, in conjunction with the transmitter 24, enables laser positioning of the drone 3 during landing, improving the accuracy of the landing position. A camera 21 and a thermal imaging camera 22 are installed at the front end of the drone 3, which improves the accuracy of the external structure of the building. The thermal imaging camera 22 is installed at the lower end of the camera 21, and two second charging rings 23 are installed at the bottom of the drone 3 to cooperate with the first charging ring 18. A transmitter 24, which cooperates with the receiver 19, is installed at the front end of the second charging ring 23, and a locator 25 is installed at the rear end of the second charging ring 23, which facilitates the location of the drone 3.

[0047] Working principle: When using this invention, first open the device and electrical equipment, then start the two first motors 5. The two first motors 5 drive the two worm gears 6 to rotate in opposite directions, which in turn drives the worm wheel 7 to rotate. The worm wheel 7 drives the rotating rod 8 to rotate. When the rotating rod 8 rotates, it drives the connecting rod 9 to rotate on the outside in an arc. The cabin 2 will tilt. At this time, the second motor 20 starts. The second motor 20 rotates in the opposite direction to the connecting rod 9, which in turn drives the cabin 2 to maintain balance. After the cabin 2 is opened, the UAV 3 starts to take off from the landing pad 1.

[0048] Then the drone 3 flies around the outside of the house, and at the same time scans the external structure of the house through camera 21 and thermal imaging 22, and transmits the data back to the information terminal. After computer processing, a three-dimensional model is generated, and then the computer performs safety calculations on the house structure.

[0049] When the drone 3's battery is low, the information terminal sends a charging signal, and the drone 3 flies toward the device. At this time, the first motor 5 and the second motor 20 open the cabin 2, the transmitter 24 emits a laser signal, and the receiver 19 moves gradually with the help of the locator 25 until it docks with the transmitter 24. Then the drone 3 lands vertically. When the bottom of the drone 3 touches the rubber pad 17, it stops operating. The rubber pad 17 can buffer the pressure of the drone 3 at the moment of landing to prevent it from malfunctioning. Then the cylinder 15 drives the landing platform 16 to descend. When the first charging ring 18 and the second charging ring 23 contact, the cylinder 15 stops, and at the same time the drone 3 begins to charge. The charging power of the drone 3 is a mixture of external power and solar panel 4 stored power.

[0050] When the drone 3 starts charging, the cabin 2 is closed, and the device is in a sealed state. The drone 3 will generate a lot of heat when charging. At this time, the third motor 13 starts and drives the cooling fan 14 to generate suction to expel the gas inside the device through the exhaust pipe 11. Because the device is in a sealed state, when the gas is drawn out from the exhaust pipe 11, the air intake pipe 10 will draw air from the outside into the device. Since one end of the air intake pipe 10 is bent, there is no need to worry about rainwater entering the device through the air intake pipe 10 on rainy days. At the same time, since the air inlets are all located directly above the drone 3, the air drawn into the device will first exchange heat with the area around the drone 3 before being discharged through the exhaust pipe 11, thus preventing the drone 3 from malfunctioning due to overheating during charging.

[0051] Example 2: See Figure 11 The helipad 1 is equipped with intelligent control components, which include a data acquisition module, an analysis module, and an execution module.

[0052] The data acquisition module collects humidity and temperature data from inside and outside the equipment and transmits the collected data to the analysis module.

[0053] The analysis module receives and preprocesses the data transmitted from the acquisition module. Based on the temperature data and water vapor partial pressure, it calculates the humidity data inside and outside the equipment and analyzes the humidity changes inside the equipment. It determines whether the final humidity inside the equipment will affect the filtration operation of filter plate 12. If it determines that it will have an impact, it generates a humidity control signal and transmits the humidity control signal to the execution module. It also analyzes the adjustment size of the air inlet based on the final humidity inside the equipment.

[0054] The collected data was sorted according to the collection time, and corresponding items collected at the same time were sorted. averaging the data and standard deviation The calculation, and the mean obtained from the calculation. and standard deviation Collect data fluctuation range for corresponding items The system is configured to compare the collected data for a given item with its fluctuation range, mark data outside the fluctuation range as outliers, and record the number of outliers. ,like If the collected data is abnormal, the data will be re-tested; if If outliers are removed, the mean of the remaining corresponding test data after outlier removal is calculated. The calculation, and the mean obtained from the calculation. As the corresponding data detected at the corresponding time;

[0055] Re-examine the corresponding data; if the comparison result is still negative... If the problem is detected, it is determined that the acquisition device is malfunctioning, an equipment warning signal is generated, and the equipment warning signal is transmitted to the execution module.

[0056] After receiving the device warning signal, the execution module controls the buzzer module of the intelligent control component to sound an alarm and displays "Data Acquisition Device Malfunction" on the control box display screen, so that staff can perform timely maintenance on the device.

[0057] A humidity sensor and an electric rainproof valve are installed at the air inlet of the air intake pipe 10. The humidity sensor detects the humidity data of the flowing gas at the air inlet, and the electric rainproof valve controls the size of the air inlet of the air intake pipe 10. The analysis module preprocesses the detected humidity data; under standard atmospheric pressure, the temperature... The saturated water vapor partial pressure at that time is approximately: Relative humidity It is the "actual partial pressure of water vapor" With saturated water vapor partial pressure The ratio, i.e. Moisture content is defined as the ratio of the mass of water vapor to the mass of dry air. ,in , Standard atmospheric pressure and These are the gas constants for dry air and water vapor, respectively.

[0058] Based on the above analysis, the humidity content of the outside air was calculated respectively. Initial moisture content inside the equipment Humidity change inside the equipment , This refers to the mass flow rate of gas discharged from the device. The total mass of air inside the equipment; the gas mass flow rate of the inlet pipe 10. , The density of the outside air. The cross-sectional area of ​​the air inlet. The gas flow rate is given; under steady-state conditions, the rate of change of the total water vapor mass inside the equipment is zero, i.e., "the mass of water vapor flowing in equals the mass of water vapor flowing out"; since the internal volume of the equipment is fixed, the final moisture content inside the equipment is... , The leakage mass flow rate of the device; from this, the final water vapor partial pressure inside the equipment can be derived. ,Depend on The formula calculates the final saturated water vapor partial pressure inside the equipment. The final humidity inside the equipment Final humidity change , The initial humidity inside the equipment;

[0059] Based on the relationship with external temperature and humidity, after obtaining external humidity and temperature data, the final humidity data inside the equipment can be calculated. Compared with preset humidity threshold data If a comparison is made, If the final humidity level is too high, it will affect the filtration operation of the filter plate 12 at the exhaust trough opening; achieve When the moisture content reaches 80%, a humidity control signal is generated and transmitted to the execution module.

[0060] Under high humidity, the substances adhering to filter plate 12 will absorb moisture and expand, causing the pore cross-sectional area to shrink, thus increasing the filter plate area attenuation coefficient. , Moisture absorption sensitivity coefficient of the adhering substance; effective filtration area ; Filter flow rate and They are directly proportional, that is , This is the proportionality coefficient; The filtration flow rate gradually decreases as humidity increases. It also gradually decreased, in At that time, the humidity data was recorded and denoted as follows. , This refers to the intake airflow rate;

[0061] Under baseline conditions (such as standard temperature and humidity, and fixed gas pressure), measure the initial effective filtration area of ​​the filter plate and record the gas flow rate at this time. Change the effective filtration area of ​​the filter plate, measuring the new effective filtration area after each change, and measuring the corresponding filtration flow rate under the same gas generation conditions. Plot a scatter plot with the effective filtration area as the x-axis and the filtration flow rate as the y-axis. Use the least squares method to perform linear fitting on the data in the scatter plot to obtain the linear equation. slope That is, the proportionality coefficient. The same method is used to obtain the proportional coefficient. The specific value;

[0062] air intake size , This is a proportionality coefficient; it is used to calculate the effective filtration area corresponding to the final internal humidity. and according to Calculate the final flow affected To reduce the rate of increase in humidity inside the equipment, the intake air flow rate needs to be reduced. ,but ,but ;

[0063] After receiving the humidity control signal, the execution module acquires the data analyzed by the analysis module. It also controls the electric rainproof valve to adjust the size of the air inlet, making the air inlet smaller than... .

[0064] By using drones to capture images of the building's external structure and analyzing these images, the width of cracks in the building's external structure can be determined. Based on crack width Risk factor , The allowable crack width for the material (0.3 mm for concrete structures, 0.5 mm for brick walls), and the material aging correction factor. , The building's age; based on structural tilt. Risk factor , To allow for tilt (according to the Code for Design of Building Foundations GB50007), a height correction factor is required. , The height of the building;

[0065] Based on component deflection Risk factor , To allow for deflection (according to the Code for Design of Concrete Structures), load correction factor. , and These are the test load and the allowable load, respectively; based on settlement rate. Risk factor , The allowable settlement rate is 0.1 mm / d for soft soil foundations and 0.05 mm / d for rock foundations. For foundation type correction factors (1.2 for soft soil, 1.0 for cohesive soil, and 0.8 for rock); settlement rate , and The values ​​represent the vertical settlement at different time periods. For measurement interval time;

[0066] Based on the compressive strength of concrete cubes Risk factor , Service time correction factor for the strength value corresponding to the design concrete strength grade. ; Compressive strength of concrete cube , This is the rebound value. Carbonization depth; based on steel corrosion rate Risk factor , The original yield strength of the steel reinforcement. To allow for yield strength (90% of the design value);

[0067] Historical data was retrieved, including data on crack width, structural tilt, component deflection, settlement rate, compressive strength, and steel corrosion rate. The analysis focused on the magnitude of fluctuations in these data points at critical values ​​that would trigger a hazard, recording the fluctuation values ​​and dividing them by the unit change in the corresponding data point to obtain the hazard number. Then the weight coefficient of the corresponding term , The overall risk factor ,exist When this happens, a warning signal is generated and transmitted to the execution module. To preset the risk factor threshold;

[0068] After receiving the warning signal, the execution module controls the buzzer module of the intelligent control component to sound an alarm and displays "Danger of external structure" on the display screen of the control box, so that staff can take timely safety measures.

[0069] 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 equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A collaborative monitoring device for the safety of building exterior structures based on unmanned aerial vehicle (UAV) swarms, comprising a helipad (1) and cabins (2) located on both sides above the helipad (1), characterized in that: The helipad (1) and cabin (2) are equipped with heat dissipation mechanisms. The helipad (1) is equipped with a buffer mechanism, on which a drone (3) is placed. The cabin (2) is equipped with a solar panel (4). The heat dissipation mechanism includes multiple air intake pipes (10) on the cabin (2) and an exhaust trough on the helipad (1). A filter plate (12) is installed at the opening of the exhaust trough. The helipad (1) is equipped with intelligent control components, which include a data acquisition module, an analysis module and an execution module; The data acquisition module collects humidity and temperature data inside and outside the equipment, collects external structural parameters of the building, and transmits the collected data to the analysis module. The analysis module receives the data transmitted from the acquisition module and performs preprocessing. It calculates the humidity data inside and outside the equipment based on the temperature data and water vapor partial pressure, and analyzes the humidity change inside the equipment based on the humidity inside and outside the equipment. It determines whether the final humidity inside the equipment will affect the filtration operation of the filter plate (12). If it is determined that it will have an impact, it generates a humidity control signal and transmits the humidity control signal to the execution module. It also analyzes the adjustment size of the air inlet based on the final humidity inside the equipment. It analyzes the risk factor of the external structure of the building based on the external structural parameters of the building. When the risk factor is greater than the preset risk factor threshold, it generates a warning signal and transmits the warning signal to the execution module. The execution module receives signals from the analysis module and performs corresponding operations.

2. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 1, characterized in that: The analysis module performs the following steps to analyze humidity changes: K1: Temperature The partial pressure of saturated water vapor at that time is Actual water vapor partial pressure , Relative humidity, Saturated water vapor partial pressure; moisture content ,in , Standard atmospheric pressure and These are the gas constants for dry air and water vapor, respectively. K2: Calculate the humidity of the outside air respectively. Initial moisture content inside the equipment Humidity change inside the equipment , This refers to the mass flow rate of gas discharged from the device. The total mass of the air inside the equipment; based on the final moisture content. Calculate the final water vapor partial pressure The final humidity inside the equipment Final humidity change , The final saturated water vapor partial pressure, The initial humidity inside the equipment; K3: Final humidity data Compared with preset humidity threshold data If a comparison is made, If the final humidity level is too high, it will affect the filtration operation of the filter plate (12) at the outlet of the exhaust trough; achieve When the moisture content reaches 80%, a humidity control signal is generated and transmitted to the execution module.

3. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 2, characterized in that: The analysis module performs the following steps to analyze the size of the air vent: R1: Filter plate area attenuation coefficient , Moisture absorption sensitivity coefficient of the adhering substance; effective filtration area ; Filter flow rate , This is the proportionality coefficient; The filtration flow rate gradually decreases as humidity increases. It also gradually decreased, in At that time, the humidity data was recorded and denoted as follows. , This refers to the intake airflow rate; R2: Inlet size , This is a proportionality coefficient; it is used to calculate the effective filtration area corresponding to the final internal humidity. and according to Calculate the final flow affected To reduce the rate of increase in humidity inside the equipment, the intake air flow rate needs to be reduced. ,but ,but .

4. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 1, characterized in that: The steps for the analysis module to perform a safety analysis of the building's external structure are as follows: M1: Based on crack width Risk factor , For the allowable crack width of the material, This is a material aging correction factor; based on structural tilt. Risk factor , To allow for tilt, This is a height correction factor; based on component deflection. Risk factor , To allow for deflection, This is a load correction factor; based on settlement rate. Risk factor , To allow for the settling rate, This is a correction factor for the foundation type; based on the compressive strength of concrete cubes. Risk factor , To determine the strength value corresponding to the design concrete strength grade, Service life correction factor; based on steel corrosion rate Risk factor , The original yield strength of the steel reinforcement. To allowable yield strength; M2: Overall Risk Factor , These are the weighting coefficients for the corresponding items. ;exist When this happens, a warning signal is generated and transmitted to the execution module. The preset risk factor threshold is used.

5. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 1, characterized in that: The front end of the helipad (1) has two first mounting slots. A first motor (5) is installed in the first mounting slot. A worm gear (6) is installed on the upper end of the output end of the first motor (5) through a coupling. A worm wheel (7) is meshed on one side of the worm gear (6). A rotating rod (8) is fixedly connected to the middle of the worm wheel (7). Both ends of the rotating rod (8) pass through the front and rear ends of the helipad (1) and are rotatably connected to the helipad (1). Connecting rods (9) are fixedly connected to both ends of the rotating rod (8). The two connecting rods (9) on the same side are located at the front and rear ends of the helipad (1). The other ends of the two connecting rods (9) on the same side are respectively hinged to the front and rear end faces of the cabin (2) on the same side. A second motor (20) is installed on the inner side of the rear end of the cabin (2). The output end of the second motor (20) is fixedly connected to one end of the rear connecting rod (9). The two first motors (5) rotate in opposite directions.

6. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 1, characterized in that: The heat dissipation mechanism also includes an exhaust pipe (11) located inside the landing pad (1). Multiple downward air inlets are equidistantly provided on the air inlet pipe (10). All of the air inlets are located directly above the UAV (3). The top of the exhaust pipe (11) is connected to the interior of the cabin (2), and the bottom of the exhaust pipe (11) is connected to the exhaust channel.

7. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 1, characterized in that: The two filter plates (12) are provided with mounting brackets on their inner sides. The mounting brackets are fixed to the inner side of the exhaust groove, and a third motor (13) is installed at the rear end of the mounting brackets. A cooling fan (14) is installed at the output end of the third motor (13) through a coupling. The cooling fan (14) is located at the front end of the mounting brackets.

8. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 1, characterized in that: The buffer mechanism includes a second mounting slot inside the landing pad (1), the second mounting slot being located directly below the UAV (3), a cylinder (15) being installed in the second mounting slot, an mounting plate being installed on the upper end of the output end of the cylinder (15), and a landing platform (16) being installed at each of the four corners of the top surface of the mounting plate, the landing platform (16) being located at the upper end of the top surface of the landing pad (1), and a rubber pad (17) being installed on the landing platform (16).

9. The collaborative monitoring device for building external structure safety based on unmanned aerial vehicle (UAV) swarms according to claim 1, characterized in that: Two first charging rings (18) are installed at the center of the top surface of the helipad (1), and a receiver (19) is installed at the front end of the first charging ring (18).

10. The collaborative monitoring device for building external structure safety based on UAV swarm as described in claim 1, characterized in that: The drone (3) is equipped with a camera (21) and a thermal imaging device (22) at the front end. The thermal imaging device (22) is installed at the lower end of the camera (21). The drone (3) is equipped with two second charging rings (23) that cooperate with the first charging ring (18) at the bottom end. The second charging ring (23) is equipped with a transmitter (24) that cooperates with the receiver (19) at the front end and a locator (25) at the rear end.

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