Unmanned aerial vehicle load cabin equipment and operation method

Abstract

The invention discloses unmanned aerial vehicle load cabin equipment and an operation method, and belongs to the technical field of satellite navigation / area navigation positioning. A data recorder, a wireless transmission module, a reference receiver and a lithium battery are mounted in a carrying box; a wireless transmission antenna and a reference receiver antenna are arranged on the carrying box; the output end of the wireless transmission module is connected with the wireless transmission antenna; the reference receiver is connected with the reference receiver antenna; the data recorder is respectively connected with the reference receiver and the wireless transmission module, and the wireless transmission module is connected with the wireless transmission antenna; the front end of the carrying box is provided with a supporting rod, the front end of the supporting rod is connected with a to-be-tested tool installation shell, a to-be-tested receiver is installed in the to-be-tested tool installation shell, and the to-be-tested receiver is connected with a to-be-tested antenna. The system can store and return test data in real time, has a high-precision reference track, is suitable for to-be-tested equipment of various sizes, is flexible in data transmission mode, and meets the high-efficiency and accurate test requirements of products such as a positioning receiver in a high-altitude and high-dynamic working environment.

Description

Technical Field

[0001] The present invention belongs to the field of satellite guidance / regional navigation positioning technology, and specifically relates to a payload cabin device for an unmanned aerial vehicle (UAV). Background Art

[0002] When developing and verifying positioning receivers and other products in high-altitude, highly dynamic working environments, they often need to be mounted on drones for testing. Currently, multi-rotor drones are often used as carriers, but existing technologies have the following major problems: 1. Test data cannot be saved and transmitted in real time: Existing drone payload bay equipment can only store test data locally during flight and cannot transmit data to the ground station in real time. This prevents ground personnel from timely understanding the equipment's operating status and making real-time adjustments and optimizations during flight, impacting test efficiency and effectiveness. For example, in scenarios requiring real-time adjustment of test parameters, the inability to transmit data in real time means operators can only analyze the stored data after the flight, missing the optimal adjustment opportunity and increasing testing costs and time.

[0003] 2. Lack of high-precision reference trajectories for comparison: Accurately evaluating the performance of a positioning receiver requires a high-precision reference trajectory for comparison. However, existing drone payload compartment equipment often fails to provide a reference trajectory with centimeter-level accuracy, making the assessment of the positioning accuracy of the receiver under test inaccurate and unreliable. This significantly limits in-depth exploration and optimization of the receiver's performance, making it difficult to meet the requirements of high-precision positioning product testing.

[0004] 3. Single-method installation and fixturing of the DUT: Current drone payload bays typically accommodate only DUTs of specific sizes and cannot accommodate the rapid installation and fixturing of a wide variety of DUT sizes. This necessitates extensive modification or redesign of the payload bay when testing devices of varying models or specifications, increasing testing costs and workload while reducing flexibility and versatility.

[0005] 4. Single data transmission method: Existing equipment uses a fixed data transmission method, which does not allow for flexible selection of real-time transmission or recording and storage based on testing requirements. In some special scenarios, such as those requiring detailed later analysis of large amounts of data, data must be stored locally, failing to fully utilize the advantages of real-time transmission. Furthermore, in scenarios requiring real-time monitoring of device status, local data storage is not possible, making it difficult to meet diverse testing needs. Summary of the Invention

[0006] In response to the above problems, the present invention provides a UAV payload cabin device that can save and transmit test data in real time, has a high-precision reference trajectory, is adaptable to devices of various sizes under test, and has a flexible data transmission method. It can meet the efficient and accurate testing needs of products such as positioning receivers in high-altitude and high-dynamic working environments.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a drone payload cabin device, comprising: a carrying box, in which a data recorder, a wireless transmission module, a reference receiver and a lithium battery are installed; a wireless transmission antenna is provided at the front end of the carrying box, and a reference receiver antenna is installed at the tail; the output end of the wireless transmission module is connected to the wireless transmission antenna; the reference receiver is connected to the reference receiver antenna; a control switch and a plug are installed on the side of the carrying box; the data recorder is connected to the reference receiver and the wireless transmission module respectively, for recording receiver data and transmitting data to the wireless transmission module, the wireless transmission module is connected to the wireless transmission antenna, for transmitting data to the ground in real time; a support rod is provided at the front end of the carrying box, the front end of the support rod is connected to an antenna fixing seat, the antenna fixing seat is connected to a cylindrical test tool installation shell, the test tool installation shell is installed with a receiver to be tested, and the receiver to be tested is connected to the antenna to be tested.

[0008] The beneficial effects produced by the above technical solution are: This solution realizes the real-time collection, recording and transmission of the data of the device under test by integrating key components such as a data recorder, a wireless transmission module, and a reference receiver. The data recorder can synchronously record the data of the reference receiver and the receiver under test, and the wireless transmission module transmits the data back to the ground in real time, so that ground personnel can grasp the flight status in real time. At the same time, the reference receiver provides a high-precision reference trajectory, which is compared and analyzed with the data of the receiver under test, and can effectively evaluate the positioning accuracy of the device under test. In addition, the design of the mounting shell of the tooling to be tested enables the devices under test of different sizes to be quickly installed and fixed, improving the versatility and adaptability of the equipment. Compared with the prior art, the present invention solves the problems of the inability to save and transmit test data in real time, the lack of high-precision reference trajectory for comparison, the single installation and fixing method of the device under test, and the single data transmission method. It has the advantages of strong versatility, flexible data processing, lightweight, and integration, and effectively improves the performance and practicality of the UAV payload cabin equipment.

[0009] As a further improvement of the above solution, a hanging ring is provided on the carrying box.

[0010] The beneficial effects of the above technical solution are: the setting of the lifting ring facilitates the suspension and fixation of the UAV payload cabin equipment, making the installation of the equipment on the UAV more convenient and quick, improving the stability and reliability of the equipment, and also facilitating the rapid disassembly and transportation of the equipment.

[0011] As a further improvement to the above solution, the storage capacity of the data logger can be expanded to meet the storage requirements of long-term test data.

[0012] The beneficial effects of the above technical solution are: the scalable storage capacity enables the data recorder to adapt to test tasks of different lengths, ensuring the complete recording of long-term flight test data, providing sufficient data support for subsequent data analysis and processing, and improving the applicability and flexibility of the equipment.

[0013] As a further improvement to the above solution, the wireless transmission module adopts a multi-band transmission mode and selects the optimal transmission frequency band according to different environments.

[0014] The beneficial effects of the above technical solution are: the multi-band transmission mode can automatically select the optimal transmission frequency band according to different test environments, effectively avoid signal interference, improve the stability and reliability of data transmission, and ensure real-time and accurate transmission of data.

[0015] As a further improvement to the above solution, a shock-absorbing device is provided under the lithium battery; the shock-absorbing device is a foam pad; it can effectively reduce the impact of the vibration generated by the drone during flight on the equipment inside the carrying box.

[0016] The beneficial effects of the above technical solution are: the shock-absorbing device can effectively buffer the vibrations generated during flight, protect the precision equipment inside the carrying box from vibration damage, improve the service life of the equipment and the accuracy of data collection, and enhance the stability and reliability of the equipment in complex flight environments.

[0017] As a further improvement of the above solution, the carrying box is made of lightweight and high-strength alloy material.

[0018] The beneficial effects of the above technical solution are: the use of lightweight and high-strength alloy materials, while ensuring that the carrying box has sufficient strength and rigidity, significantly reduces the weight of the equipment, reduces the requirements for the drone's load capacity, improves the drone's flight performance and endurance, and also enhances the corrosion resistance and service life of the carrying box.

[0019] As a further improvement to the above solution, the control switch includes: a rocker switch and a multi-channel signal switching switch, among which: the rocker switch has five channels, one of which powers on the carrying box and the product under test; the second and third channels power on the wireless transmission module; the fourth and fifth channels power on the data recorder; the multi-channel signal switching switch is used to control the data transmission method, and can choose whether to switch the data to be retained in the data recording box, the data to be transmitted through the wireless transmission device, or the data to be directly read through the data aerial plug; the multi-channel signal switching switch has multiple switching modes, and can flexibly set the transmission priority of different signals to meet the needs of different test scenarios.

[0020] The beneficial effects of this technical solution are as follows: the combined design of a rocker switch and a multi-signal switching switch makes the device's power and data transmission control more flexible and convenient. The rocker switch facilitates independent power-on control of different components, while the multi-signal switching switch flexibly selects data transmission methods and priorities based on different test scenarios, improving the device's adaptability and ease of operation, meeting diverse testing needs.

[0021] As a further improvement of the above solution, the reference receiver is arranged below the lithium battery and between the shock absorbing devices.

[0022] The beneficial effects of the above technical solution are as follows: the reference receiver is placed below the lithium battery and between the shock-absorbing devices, which not only makes rational use of the space, but also enables the reference receiver to be better protected by the shock-absorbing devices, reduces the impact of vibration on its working stability during flight, improves the accuracy and reliability of the reference receiver's data acquisition, and further enhances the overall performance of the equipment.

[0023] As a further improvement to the above solution, the method for operating the UAV payload compartment device includes the following steps: Step 1: Install the product to be tested (antenna to be tested + receiver to be tested) into the mounting shell of the test fixture; Step 2: Set the parameters of the product under test according to the test scenario, and set the data transmission path to wireless transmission, data logger storage, or a combination of the two; Step 3: The drone takes off with the drone payload cabin equipment and flies according to the test scenario flight trajectory; Step 4: Check the data and set the parameters according to the selected data transmission path: When wireless transmission is selected as the data transmission path, the data of the product under test can be received and viewed in real time through the wireless transmission module. At the same time, the parameters of the product under test can be remotely set through the wireless transmission module according to the actual test situation to modify the test conditions in real time and improve test efficiency; When the data transmission path is selected as data recorder storage, the stored data can be read and analyzed through the external output interface of the data recorder after the test is completed; When the data transmission path is a combination of the two, some key data can be viewed in real time through the wireless transmission module during flight, while the data recorder stores all data completely for detailed analysis and backtracking when needed; Step 5: Complete the test task and remove the equipment.

[0024] The above technical solution offers significant advantages: strong operability and flexibility. By rationally selecting data transmission paths, it can meet the data collection and analysis requirements of various test scenarios. The combination of real-time data transmission and post-data storage and analysis ensures efficient testing while providing comprehensive data support for subsequent in-depth research. Furthermore, the ability to remotely set DUT parameters in real time during flight improves test adaptability and efficiency, ensuring the successful completion of test missions.

[0025] Compared with the prior art, the present invention has the following beneficial effects as a whole: By integrating multiple functional modules and optimizing the structural design, the UAV payload compartment achieves versatility, flexibility, and efficiency. This addresses existing issues such as the inability to store and transmit test data in real time, the lack of high-precision reference tracks for comparison, the single-method installation and fixturing of the device under test, and the single-mode data transmission method. This effectively improves the performance and practicality of the UAV payload compartment, reduces the requirements for the UAV platform, and provides a more comprehensive and reliable solution for the UAV testing field. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the UAV payload cabin equipment; Figure 2 This is a schematic diagram of the external structure of the UAV payload cabin equipment; Figure 3 It is a schematic diagram of the structure of the tooling to be tested; Figure 4 This is a schematic diagram of the internal structure of the UAV payload compartment; Figure 5 This is a schematic diagram of the reference receiver installation location.

[0027] Figure 6 This is a schematic diagram of the circuit module connection structure of this device.

[0028] Figure 1: 1. Carrying box; 2. Cover; 4. Lifting ring; 5. Antenna mounting base; 6. Wireless transmission antenna; 7. Support rod fixing base; 8. Support rod; 9. Reference receiver; 10. Test fixture mounting shell; 11. Reference receiver antenna; 12. Rocker switch; 13. Multi-channel signal switching switch; 14. Plug; 16. Data recorder; 17. Wireless transmission module; 18. Shock absorber; 19. Lithium battery; 20. Antenna fixing base. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0030] 1. Overview of the Implementation like Figures 1-6 As shown, this embodiment details the specific implementation process of a UAV payload bay device, covering all aspects of the device, including assembly, parameter setting, flight testing, and data processing. It is primarily used for the R&D, verification, and testing of products such as positioning receivers in high-altitude, highly dynamic operating environments. By integrating key components such as a data recorder, wireless transmission module, and reference receiver, it addresses existing issues such as the inability to store and transmit test data in real time, the lack of high-precision reference tracks for comparison, the limited installation and fixation methods for the device under test, and the limited data transmission methods, thereby improving the performance and practicality of UAV payload bay equipment.

[0031] 2. Equipment Assembly (1) Installation of the carrying box and internal components 1. Select a carrying box: Select a lightweight, high-strength alloy carrying box with a size of 600mm×400mm×300mm. It is generally made of aluminum alloy, which has good protective performance and low weight, ensuring the overall lightweight and robustness of the equipment. A removable cover 2 is installed on the top of the carrying box by bolts.

[0032] 2. Install Internal Components: Install the data logger 16, wireless transmission module 17, reference receiver 9, and lithium battery 19 in the carrying case 1. Connect the data logger 16 to the reference receiver 9 and wireless transmission module 17 via a dedicated data cable. Ensure a secure and reliable connection for stable data transmission and recording. The data logger 16 has expandable storage capacity, using an SD card as the expansion medium. The maximum supported capacity is 128GB, meeting the storage requirements of long-term test data.

[0033] (2) Antenna Installation 1. Installing the Wireless Transmission Antenna 6: Mounting bracket 5 is located at the front of the carrying case 1. Mounting bracket 5 houses the wireless transmission antenna 6. Connect the mounting bracket 5 to the output of the wireless transmission module 17 via an RF coaxial cable (such as an RG-8X cable). Ensure the cable length does not exceed 2 meters to minimize signal loss. The wireless transmission antenna 6 is omnidirectional, operating in the 2.4 GHz to 2.5 GHz frequency range with a gain of 5 dBi. Ensure the antenna is facing vertically upwards, with no obstructions that could affect signal transmission.

[0034] 2. Reference Receiver Antenna Installation: Install reference receiver antenna 11 at the rear of carrier box 1. Also connect it to reference receiver 9 using an RF coaxial cable (such as RG-8X cable). The cable length should not exceed 2 meters. Reference receiver antenna 11 uses a high-precision positioning antenna operating at 1.57542 GHz (GPS L1 band) with a gain of 3 dBi. Ensure the antenna is horizontal and free of obstructions that could impede signal reception.

[0035] (3) Control switch and plug installation 1. Rocker Switch Installation: Install a rocker switch 12 on the side of the carrying case 1. Rocker switch 12 has five outputs, which are connected via insulated wires (e.g., AWG22 wire) to the power inputs of the carrying case 1, the device under test, the wireless transmission module 17, and the data logger 16. Each output is rated for 5A and 12V, ensuring a stable power supply for all components.

[0036] 2. Multi-signal Switch Installation: Install a multi-signal switch 13 on the side of the carrier box 1. This switch 13 connects to the data recorder 16 and wireless transmission module 17 via a logic control circuit (e.g., a relay-based switching circuit), enabling flexible control of data transmission methods. The switch has three operating modes: data recorder storage mode, wireless transmission mode, and direct data reading mode. Rotating the switch switches the mode.

[0037] 3. Plug Installation: Install plug 14 on the side of the carrying case 1. Plug 14 is used to connect to an external data acquisition device or power supply. This plug is an aviation-grade plug, offering excellent waterproof and dustproof properties. The plug's contacts are made of phosphor bronze and gold-plated to ensure a reliable and stable connection.

[0038] (IV) Assembly of the test tool housing 1. Connecting the Support Rod to the Antenna Mount: A support rod mount 7 is installed at the front end of the carrier box 1. A support rod 8 is sleeved within this mount, and the front end of the support rod 8 is connected to the antenna mount 20. Support rod 8 is made of carbon fiber, 500mm long, and 20mm in diameter, offering excellent strength and rigidity. Antenna mount 20 is made of aluminum alloy, offering excellent mechanical properties and corrosion resistance.

[0039] 2. Install the DUT Mounting Housing: Attach the cylindrical DUT mounting housing 10 to the antenna mount 20. Made of ABS plastic, DUT mounting housing 10 offers excellent insulation and mechanical properties. The receiver under test is housed within DUT mounting housing 10 and connected to the antenna under test via a dedicated interface (such as an SMA connector) to ensure effective signal transmission. DUT mounting housing 10 is interchangeable to accommodate various DUT sizes. To replace it, loosen the mounting screws on the antenna mount 20, remove the DUT mounting housing 10, and replace it with a housing that matches the size of the target DUT. Securely attach it to the antenna mount 20 using the mounting screws.

[0040] (5) Installation of shock absorbers and lifting rings 1. Shock Absorber Installation: Install shock absorber 18 below lithium battery 19. Use a 10mm thick foam pad, measuring 200mm x 150mm x 10mm, as the shock absorber material. Install it inside carry case 1 by gluing. With a density of 50kg / m³, the foam pad offers excellent shock absorption, effectively mitigating the impact of drone vibrations on the equipment inside carry case 1 during flight.

[0041] 2. Lifting Ring Installation: Install lifting ring 4 on the payload box 1. Made of stainless steel, it can support the entire weight of the drone's payload bay equipment (approximately 10 kg). Secure it to the designated location on the payload box 1 with M6 bolts. The installation position of lifting ring 4 should ensure a balanced suspension of the equipment on the drone to prevent tilting or damage due to improper suspension.

[0042] 3. Parameter settings (1) Data logger settings 1. Turn on the device: Turn on the data logger 16, enter its setting interface, and set the parameters through the operation screen or configuration software.

[0043] 2. Storage capacity expansion: Insert an SD card into the SD card slot of the data logger 16 and set the storage capacity to expand to 128GB to meet the storage requirements of long-term test data.

[0044] 3. Sampling frequency setting: According to the test requirements, the sampling frequency of the data recorder 16 is set to 50 Hz to ensure that the data changes of the receiver under test can be accurately recorded.

[0045] 4. Calibration Setup: The data logger 16 is calibrated using a calibration procedure to ensure the accuracy of its recordings. The calibration process includes time synchronization calibration and data accuracy calibration. Time synchronization calibration uses the GPS signal as the time reference, while data accuracy calibration is performed by comparing to a known standard signal source.

[0046] (2) Wireless transmission module settings 1. Parameter Configuration: Configure the parameters of wireless transmission module 17, using a multi-band transmission mode. Based on the wireless environment in the test area, use a spectrum analyzer to determine the frequency band with minimal interference and set its operating frequency to 2.4 GHz to 2.4835 GHz. Also, set the transmit power of wireless transmission module 17 to 1 W to ensure stable and reliable data transmission.

[0047] 2. Communication Connection Test: Use a signal strength tester to test the signal strength of the wireless transmission module 17 to ensure that the signal strength within the test area meets communication requirements. Test points should cover all corners of the test area to ensure that the wireless transmission module 17 can stably transmit data to the ground station during flight.

[0048] (3) Reference receiver settings 1. Parameter Configuration: Reference Receiver 9 uses a high-precision positioning receiver and is set to positioning mode with a data update rate of 10 Hz and sub-meter positioning accuracy (≤ 1 m). Ensure that Reference Receiver 9 can properly receive signals and output high-precision reference trajectory data by connecting to a satellite signal simulator.

[0049] 2. Installation and Calibration: Install reference receiver 9 below lithium battery 19, between vibration dampers 18, and securely mount it inside carrier box 1 using a mounting bracket. After installation, calibrate reference receiver 9. This process includes satellite signal search and positioning accuracy testing to ensure that reference receiver 9 can accurately receive satellite signals and output high-precision reference trajectory data.

[0050] (IV) Control switch settings 1. Rocker Switch Settings: Operate the rocker switch 12 to power each component according to the test plan and data processing requirements. For example, turn the first position of the rocker switch 12 to "ON" to power the carrier box 1 and the product under test; turn the second and third positions to "ON" to power the wireless transmission module 17; and turn the fourth and fifth positions to "ON" to power the data logger 16.

[0051] 2. Multi-channel signal switch setting: Rotate the multi-channel signal switch 13 to the appropriate operating mode according to the test requirements. For example, if you need to view data in real time and adjust parameters, set the switch to wireless transmission mode; if you need to perform detailed data analysis later, set it to data logger storage mode.

[0052] 4. Flight Test (1) Installation of the tested product 1. Install the receiver under test: Install the receiver under test in the test fixture mounting housing 10, ensuring it is securely mounted to prevent loosening or damage during flight. The receiver's parameters should be set according to the test requirements, including operating mode, frequency, and gain. Calibrate the receiver using professional test equipment (such as a spectrum analyzer or signal source analyzer).

[0053] 2. Connect the antenna under test: Connect the antenna under test to the receiver under test through a dedicated interface (such as an SMA interface). Ensure the connection is secure and reliable to ensure effective signal reception. Use a high-gain antenna under test, operating at 1.57542 GHz (GPS L1 band) with a gain of 5 dBi. During installation, ensure the antenna is horizontal and free of obstructions that may affect signal reception.

[0054] (2) Pre-flight inspection 1. Equipment connection check: Check whether the connection between the drone's payload bay equipment and the drone is stable, including the hanging status of ring 4 and whether the power connection is normal. Ensure that the equipment will not become loose or damaged during flight due to connection problems.

[0055] 2. Communication connection check: Check whether the communication connection between the wireless transmission module 17 and the ground station is normal. Send a test command through the ground station software to observe whether the wireless transmission module 17 can receive and respond correctly to ensure that data can be transmitted to the ground station in real time.

[0056] (3) Flight Operations 1. Takeoff and flight trajectory: The drone takes off according to a predetermined flight trajectory, with a flight altitude of 100m and a flight speed of 10m / s. The flight trajectory includes various flight modes such as straight flight, curved flight, and circling flight to comprehensively test the performance of the receiver under different flight conditions.

[0057] 2. Data Collection and Transmission: During flight, the reference receiver 9 transmits high-precision reference trajectory data to the data recorder 16 in real time. The receiver under test simultaneously collects and transmits this data to the data recorder 16. The data recorder 16 simultaneously records both sets of data, while the wireless transmission module 17 transmits the data in real time to the ground station. The ground station monitors and displays the received data in real time using dedicated software. If any data anomalies are detected, the wireless transmission module 17 can be used to remotely adjust the DUT parameters and optimize the test process.

[0058] 5. Data Processing and Analysis (1) Data comparison and analysis 1. Data import: Import the measured trajectory and reference trajectory data into professional data analysis software (such as MATLAB, Python data analysis library, etc.), and use mathematical methods such as least squares method to calculate the three-dimensional position deviation. The formula is:

[0059] in, is the reference receiver coordinate, is the coordinate of the receiver to be measured.

[0060] 2. Positioning accuracy evaluation: Through statistical analysis, key indicators such as the positioning accuracy of the receiver under test are obtained to evaluate whether its performance meets the design requirements. For example, in a certain test, the results of the three-dimensional position deviation calculation are shown in the following table: Table 1: Positioning accuracy test data

[0061] As can be seen from the data in the table, the three-dimensional position deviation of the receiver under test is between 0.07m and 0.15m, indicating that its positioning accuracy is high and can meet the needs of actual applications.

[0062] (2) Speed ​​and accuracy test data 1. Data Collection: During flight, the reference receiver and the receiver under test synchronously collect velocity data at a frequency of 10 Hz for 10 minutes, collecting a total of 600 data points.

[0063] 2. Speed ​​deviation calculation: By comparing the speed data of the reference receiver and the receiver under test, the speed deviation is calculated using the formula:

[0064] 3. Speed ​​Accuracy Evaluation: Based on the calculation results, evaluate the speed measurement accuracy of the receiver under test. For example, in a certain test, the speed accuracy test data is shown in the following table: Table 2: Speed ​​and accuracy test data

[0065] As can be seen from the table, the speed deviation of the receiver under test is between 0.1m / s and 0.2m / s, indicating that its speed measurement accuracy is high, which can accurately reflect the actual flight speed and meet the speed accuracy requirements of most application scenarios.

[0066] (3) Data mining and chart drawing 1. Data Mining: Deeply mine test data to analyze how the receiver's performance changes under different flight conditions. For example, analyze the changes in positioning accuracy and velocity accuracy at different flight altitudes, speeds, and attitudes to identify the optimal operating range and potential problems.

[0067] 2. Graphing: Based on the analysis results, data graphs such as positioning accuracy error distribution graph, velocity accuracy error distribution graph, and position deviation versus time curve are drawn to intuitively display the performance indicators of the receiver under test.

[0068] 6. Test Completion and Equipment Recovery 1. Landing and Recovery 1. Landing: After completing the test mission, direct the drone to land smoothly according to the predetermined flight plan and operating procedures. During the landing process, closely monitor the drone's flight status and equipment operation to ensure a safe landing. The operator should clean the landing area before landing the drone, ensuring that the landing area is free of debris and obstacles to provide a safe landing environment for the drone.

[0069] 2. Equipment Recovery: After the drone has landed, immediately conduct a comprehensive inspection of the drone's payload bay equipment, including a visual inspection, component connections, and power supply inspection, to ensure the equipment is intact. This inspection should include: checking for scratches, deformation, and other surface damage; ensuring that all component connections are secure and reliable; and ensuring the power supply is functioning properly. Any damage or abnormalities found should be promptly repaired and addressed.

[0070] (2) Data backup and equipment maintenance 1. Data backup: Back up the data recorded in the data logger to an external storage device (such as a mobile hard drive or CD) to ensure data security and integrity. During the backup process, follow data backup specifications and mark the data collection time, collection location, collection device, and other information to facilitate subsequent data query and analysis.

[0071] 2. Equipment Maintenance: Clean and maintain the drone's payload compartment equipment, including removing dust and dirt from the equipment's surface; inspect each component for wear and replace worn parts promptly; and calibrate and debug the equipment to ensure it is in good working condition. During maintenance, strictly follow the equipment maintenance manual to ensure proper operation and service life of the equipment.

[0072] It should be noted that, in this article, the terms: include, contain and any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. Specific examples are used herein to illustrate the principles and implementation methods of the technical solution of the present invention. The above examples are only used to help understand the method of the present invention and its core idea. The above is only a preferred embodiment of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements, modifications or changes can be made, and the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the present invention to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. An unmanned aerial vehicle payload compartment device, characterized in that: include: A carrying box (1) having a data recorder (16), a wireless transmission module (17), a reference receiver (9) and a lithium battery (19) installed therein; The carrying box (1) is provided with a wireless transmission antenna (6) at the front end and a reference receiver antenna (11) at the rear end; The output end of the wireless transmission module (17) is connected to the wireless transmission antenna (6); The reference receiver (9) is connected to the reference receiver antenna (11); The carrying box (1) is provided with a control switch and a plug (14) on the side thereof; The data recorder (16) is connected to the reference receiver (9) and the wireless transmission module (17) respectively, and is used to record the receiver data and transmit the data to the wireless transmission module (17). The wireless transmission module (17) is connected to the wireless transmission antenna (6) and is used to transmit the data to the ground in real time; The front end of the carrying box (1) is provided with a support rod (8), the front end of the support rod (8) is connected to an antenna fixing seat (20), the antenna fixing seat (20) is connected to a cylindrical tool installation shell (10) to be tested, a receiver to be tested is installed in the tool installation shell (10), and the receiver to be tested is connected to the antenna to be tested.

2. The UAV payload compartment device according to claim 1, characterized in that: The carrying box (1) is provided with a hanging ring (4).

3. The UAV payload bay device according to claim 1, characterized in that: The storage capacity of the data recorder (16) can be expanded to meet the storage requirements of long-term test data.

4. The UAV payload bay device according to claim 1, characterized in that: The wireless transmission module (17) adopts a multi-band transmission mode and selects the optimal transmission frequency band according to different environments.

5. The UAV payload bay device according to claim 1, characterized in that: A shock absorbing device (18) is provided below the lithium battery (19); the shock absorbing device (18) is a foam pad.

6. The UAV payload bay device according to claim 1, characterized in that: The carrying box (1) is made of a lightweight and high-strength alloy material.

7. The UAV payload bay device according to claim 1, characterized in that: The control switch comprises: a rocker switch (12), a multi-channel signal switching switch (13), wherein: The rocker switch (12) has five circuits, one of which powers the carrying box (1) and the product under test; the second and third circuits power the wireless transmission module (17); and the fourth and fifth circuits power the data recorder (16). The multi-channel signal switching switch (13) is used to control the data transmission mode, and can select whether to switch the data to be retained in the data recording box, the data to be transmitted via a wireless transmission device, or the data to be directly read via a data aerial plug.

8. The UAV payload bay device according to claim 1, characterized in that: The reference receiver (9) is arranged below the lithium battery (19) and between the shock absorbing devices (18).

9. The UAV payload bay device according to claim 1, characterized in that: The operating method of the UAV payload compartment device comprises the following steps: Step 1: Install the product to be tested, i.e. the antenna to be tested and the receiver to be tested, into the installation shell (10) of the tool to be tested; Step 2: Set the parameters of the product under test according to the test scenario, and set the data transmission path to wireless transmission, data recorder (16) storage, or a combination of the two; Step 3: The drone takes off with the drone payload cabin equipment and flies according to the test scenario flight trajectory; Step 4: Check the data and set the parameters according to the selected data transmission path: When wireless transmission is selected as the data transmission path, the data of the product under test is received and viewed in real time through the wireless transmission module (17). At the same time, the parameters of the product under test can be remotely set through the wireless transmission module (17) according to the actual test situation, so as to modify the test conditions in real time and improve the test efficiency; When the data transmission path is selected as the data recorder (16) for storage, the stored data can be read and analyzed through the external output interface of the data recorder (16) after the test is completed; When the data transmission path is selected as a combination of the two, some key data can be viewed in real time through the wireless transmission module (17) during the flight, while the data recorder (16) stores all data in full so that detailed analysis and backtracking can be performed when necessary; Step 5: Complete the test task and remove the equipment.

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