Portable unmanned aerial vehicle fuel system test measurement and control box

Abstract

The invention discloses a portable unmanned aerial vehicle fuel oil system test measurement and control box. The box comprises a box body, and an HMI touch screen, a data acquisition module, a control module and a power supply module which are integrated in the box body. The box body is used for accommodating the HMI touch screen and each module; the HMI touch screen is used for realizing parameter configuration and control instruction generation; the data acquisition module comprises a plurality of different types of data acquisition cards and is used for acquiring different test data of the unmanned aerial vehicle fuel system based on the configuration of the HMI touch screen and transmitting the test data to the HMI touch screen; the HMI touch screen is also used for resolving, displaying and storing the received test data; and the control module comprises a relay control module and a PWM control module which are respectively used for executing a control instruction of the HMI touch screen, controlling the opening and closing of the electromagnetic valve and adjusting the rotating speed of the fuel pump. The test measurement and control box has the advantages of high integration level, multiple functions, intelligence, portability, high test efficiency and high flexibility.

Description

Technical Field

[0001] The invention belongs to the technical field of experimental testing equipment, and in particular relates to a portable unmanned aerial vehicle fuel system test and control box. Background Art

[0002] The aircraft fuel system is like the "energy heart" and "power lifeline" of the aircraft. Its core mission is to store fuel safely and reliably, and to ensure that under various extremely complex conditions throughout the flight, whether it is climbing to a thin atmosphere at an altitude of 10,000 meters, or when the aircraft makes drastic maneuvering flight attitude changes, it can continuously and uninterruptedly deliver fuel with millimeter-precision, following the strict pressure and flow requirements of the engine, and providing a solid energy guarantee for the stable and efficient operation of the engine. At the same time, its multiple additional functions are like a sophisticated behind-the-scenes "adjustment master", effectively cooling many related systems on the aircraft, cleverly balancing the aircraft's attitude, accurately maintaining the aircraft's center of gravity within the strictly specified range, and comprehensively maintaining the aircraft's flight safety and performance stability.

[0003] With the deep transformation and rapid development of the aviation field towards multi-electric and all-electric technology systems, the demand for aircraft fuel system function and performance testing is growing exponentially and the standards are being strictly upgraded. The speed of test data acquisition needs to achieve a qualitative leap in order to capture the ever-changing system status; the quantity should strive for massive coverage to mine potential key information; the accuracy should be extremely subtle and no deviation is allowed. For the pumps and valve components in the fuel system, the start-stop control requires more agility, precision, and intelligent collaboration. The interactive experience between operators and test equipment needs to be reshaped urgently. It needs to leap from traditional mechanical operation to an intelligent, friendly, and efficient interactive mode. Data visualization also needs to be innovated from simple numerical listing to rich and intuitive graphics and charts to deeply enable operators to have real-time insight into the test process and make accurate decisions.

[0004] For drones, the functional and performance test scenarios of their fuel systems are rich and complex. Full-scale tests simulate the operating conditions throughout the aircraft's life cycle, factory tests ensure product quality, environmental tests examine adaptability to extreme environments, combustion-engine matching tests refine power synergy, and on-board and ground tests verify system integration. The various test sites are randomly distributed and scattered across different geographical regions and environmental conditions. During the test process, the physical quantities to be measured vary widely, from conventional indicators such as pressure, temperature, and flow rate to special parameters such as fuel composition and impurity content; the measurement range spans from tiny micro-pressure and low-temperature ranges to high-pressure and high-temperature extremes; the signal types are complex and diverse, covering various modalities such as analog, digital, and pulse signals, posing extremely stringent comprehensive requirements for portable test measurement and control boxes. On the one hand, their external dimensions must be compact and small, and they must be light and portable, like lightweight intelligent devices, so that they can flexibly move with the test team among various test sites; on the other hand, they need to have excellent versatility and can accurately adapt to the requirements of different test scenarios through a simple configuration process, seamlessly integrating into diverse test systems.

[0005] Currently, most acquisition and control devices in the industry generally adopt the combination mode of a PC computer (relying on the powerful but complex labview software platform) and a data acquisition card, or the architecture of an industrial computer (also based on labview) with a PCI card. The drawbacks of such traditional device architectures are fully exposed under the scrutiny of modern test requirements:

[0006] a) The test measurement and control box is bulky and inconvenient to carry; in terms of appearance design, the large and cumbersome appearance makes it extremely difficult for users to carry, not only occupying a large amount of space but also being easily damaged by collisions during transportation, increasing the equipment maintenance cost and risk;

[0007] b) The integration of data acquisition and valve control in the test measurement and control box is low; at the internal architecture level, the integration of data acquisition and valve control is severely insufficient, and the collaborative operation between the two is sluggish and inefficient, resulting in the obstruction of the test process coherence and the reduction of the overall efficiency;

[0008] c) The test measurement and control box cannot be used alone, and the realization of device functions highly depends on an external PC computer, lacking independence. Once it is separated from the support of the PC computer, the flexibility and timeliness of test development are severely limited;

[0009] d) The test data acquisition rate is low, easily causing the loss of key test data;

[0010] e) The visualization level of test data is low, and the data display on the human-machine interface is still in numerical form, with a lower visualization level than forms such as curves and tables;

[0011] f) It is difficult to collect dynamic process test data. Due to the limitations of the sampling rate and numerical display, the dynamic response characteristics during the product test process cannot be directly observed.

[0012] Therefore, there is an urgent need for a portable test equipment with high integration, multiple functions, intelligent portability, which can avoid excessive dependence on laptops, and has high test efficiency and high flexibility to support the full-scenario test requirements of the UAV fuel system. Summary of the Invention

[0013] To solve the above problems existing in the prior art, the present invention provides a portable test and control box for the UAV fuel system. The technical problems to be solved by the present invention are realized through the following technical solutions:

[0014] In a first aspect, the present invention proposes a portable test and control box for the UAV fuel system, comprising: a box body and an HMI touch screen, a data acquisition module, a control module, and a power supply module integrated inside the box body; wherein,

[0015] The box body is used to accommodate the HMI touch screen and each module;

[0016] The HMI touch screen is connected to the data acquisition module and the control module, and is used to implement parameter configuration and control instruction generation;

[0017] The data acquisition module includes multiple different types of data acquisition cards, and the multiple different types of data acquisition cards are used to collect different test data of the UAV fuel system based on the configuration of the HMI touch screen, and transmit the test data to the HMI touch screen;

[0018] The HMI touch screen is also used to calculate, display, and save the received test data;

[0019] The control module includes a relay control module and a PWM control module, and the relay control module and the PWM control module are respectively used to execute the control instructions of the HMI touch screen to perform valve switch control and fuel pump speed regulation;

[0020] The power supply module provides electrical energy for the entire test and control box.

[0021] Advantages of the present invention:

[0022] 1. The portable test and control box for the fuel system of an unmanned aerial vehicle provided by the present invention integrates the HMI touch screen, data acquisition module, control module, and power supply module in the box body. Among them, the data acquisition module includes multiple different types of data acquisition cards, which can collect different test data of the fuel system of the unmanned aerial vehicle. The control module includes a relay control module and a PWM control module, which can be used for valve switch control and fuel pump speed regulation. Based on the box body, this test and control box exquisitely integrates each module, is exquisitely portable, greatly improves the system integration degree and cooperation efficiency, and each module closely cooperates and performs its own duties, realizing one-stop efficient operation from data acquisition to equipment control in the fuel system test, effectively reversing the dilemma of the traditional equipment being bulky and difficult to move, injecting strong mobility into on-site tests, and significantly reducing the equipment deployment and transfer costs.

[0023] 2. The portable test and control box for the fuel system of an unmanned aerial vehicle provided by the present invention uses the HMI touch screen as the nerve center, seamlessly interacts with the data acquisition module through a switch, efficiently receives, analyzes, and processes sensor data according to a specific communication protocol, realizes a full-function data processing process, and can operate stably without the support of an external PC or industrial computer. In a complex and changeable test environment, it ensures the rapid deployment and efficient operation of the equipment, and significantly improves the test efficiency and flexibility.

[0024] 3. The portable test and control box for the fuel system of an unmanned aerial vehicle provided by the present invention can adapt to multiple sensors and signal types. Only simple data configuration is required to start the test. The operation process is clear and convenient, and the installation and maintenance are easy to get started, greatly reducing the personnel training cost and operation complexity, and effectively promoting the popularization and application of the equipment.

[0025] The following will further elaborate on the present invention in conjunction with the drawings and embodiments. Description of the Drawings

[0026] Figure 1 is the structural block diagram of a portable test and control box for the fuel system of an unmanned aerial vehicle provided by an embodiment of the present invention;

[0027] Figure 2 is the cross-linking diagram of each module in the box body provided by an embodiment of the present invention;

[0028] Figure 3 is the schematic diagram of the main display interface of the HMI touch screen provided by an embodiment of the present invention;

[0029] Figure 4 is the schematic diagram of the parameter configuration interface in the HMI touch screen provided by an embodiment of the present invention;

[0030] Figure 5 is the schematic diagram of the acquisition channel definition interface in the HMI touch screen provided by an embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of the curve display interface in the HMI touch screen provided by an embodiment of the present invention;

[0032] Figure 7 It is a schematic diagram of the historical data query interface in the HMI touch screen provided by an embodiment of the present invention. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] The first aspect of the present invention provides a portable test and control box for an unmanned aerial vehicle fuel system. Please refer to Figure 1 , Figure 1 It is a structural block diagram of a portable test and control box for an unmanned aerial vehicle fuel system provided by an embodiment of the present invention. The test and control box mainly includes a box body and an HMI touch screen, a data acquisition module, a control module, and a power supply module integrated inside the box body; among them,

[0035] The box body is used to accommodate the HMI touch screen and each module;

[0036] The HMI touch screen is connected to the data acquisition module and the control module, and is used to implement parameter configuration and control instruction generation;

[0037] The data acquisition module includes multiple different types of data acquisition cards. The multiple different types of data acquisition cards are used to collect different test data of the unmanned aerial vehicle fuel system based on the configuration of the HMI touch screen, and transmit the test data to the HMI touch screen through the communication module;

[0038] The HMI touch screen is also used to perform calculation, display, and storage of the received test data;

[0039] The control module includes a relay control module and a PWM control module. The relay control module and the PWM control module are respectively used to execute the control instructions of the HMI touch screen to perform valve switch control and fuel pump speed regulation;

[0040] The power supply module provides electrical energy for the entire test and control box.

[0041] The portable UAV fuel system test and control box provided by the present invention relies on the box body, exquisitely integrates each module, is exquisitely portable, greatly improves the system integration degree and cooperation efficiency, and each module closely cooperates and performs its own duties, realizing one-stop efficient operation of the fuel system test from data acquisition to equipment control, effectively reversing the dilemma of traditional equipment being bulky and difficult to move, injecting strong mobility into on-site tests, and greatly reducing the equipment deployment and transfer costs.

[0042] Optionally, in this embodiment, the box body can be made of non-toxic and odorless new petrochemical PP material with a thickness of 4.0 mm. In practice, the thickness of the box body can be appropriately increased to enhance the earthquake and drop resistance effect.

[0043] It can be understood that the box body can include an outer shell, an inner box, an upper cover and a lower cover, etc. Among them, the size of the inner box can be designed as 350*250*160 mm, the size of the outer box can be designed as 385*310*178 mm, the depth of the upper cover can be 35 mm, and the depth of the lower cover can be 125 mm. In actual implementation, the HMI touch screen can be selectively integrated on the upper cover, and other modules can be integrated in the lower cover.

[0044] Furthermore, the box body is also encapsulated with EPDM sealing strips, which can ensure that the test and control box does not leak water after being immersed in water for 2 hours.

[0045] In addition, several protective devices are also provided on the box body. The protective devices include an exhaust device and an anti-theft lock hole. Among them, the exhaust device can prevent the box body from being affected by temperature and the air pressure is too high to open the cover for exhaust. The anti-theft lock hole can be equipped with a password lock, an anti-theft lock, etc. to prevent the instrument data from being stolen.

[0046] The portable UAV fuel system test and control box provided by the present invention relies on the box body, exquisitely integrates each module, is exquisitely portable, greatly improves the system integration degree and cooperation efficiency, and each module closely cooperates and performs its own duties, realizing one-stop efficient operation of the fuel system test from data acquisition to equipment control, effectively reversing the dilemma of traditional equipment being bulky and difficult to move, injecting strong mobility into on-site tests, and greatly reducing the equipment deployment and transfer costs.

[0047] Furthermore, please refer to Figure 2 , Figure 2 which is the cross-linking diagram of each module in the box body provided by the embodiment of the present invention.

[0048] For the power supply module, in this embodiment, a dual-output DC switching power supply of 24V and 5V is selected and a pin socket is configured.

[0049] For the HMI touch screen, it can adopt the Ethernet communication method, connect to the data acquisition module and the control module through a switch, and communicate based on the Modbus TCP protocol.

[0050] Optionally, as an implementation method, the HMI touch screen adopts the Weigongtong series touch screen, which can directly connect to different acquisition cards in the data acquisition module through a switch for Modbus TCP protocol communication.

[0051] It can be understood that in this embodiment, the HMI touch screen serves as the upper computer of the test measurement and control box, and can realize functions such as parameter configuration, passband definition, data display, valve control, fuel pump control, curve display, historical data query, and data export.

[0052] Furthermore, for the software system of the HMI touch screen, this embodiment uses the EasyBuilder Pro platform for development. The entire development environment of the EasyBuilder Pro platform is powerful and user-friendly, forming a fully integrated development environment. The software system of the HMI touch screen incorporates the following functional units:

[0053] The parameter configuration unit is used to configure the range, sampling frequency, and alarm threshold of the data acquisition module;

[0054] The control logic unit is used to implement conditional trigger valve control and PID speed regulation algorithm;

[0055] The data visualization unit supports the drawing, display of real-time curves, bar charts, and data tables, as well as the query and export of historical data.

[0056] It can be understood that on the HMI touch screen, there are also corresponding function bars and function display interfaces for these functional units.

[0057] Exemplarily, please refer to Figures 3 - 7 , where Figure 3 is a schematic diagram of the main display interface of the HMI touch screen provided by the embodiment of the present invention; Figure 4 is a schematic diagram of the parameter configuration interface in the HMI touch screen provided by the embodiment of the present invention; Figure 5 is a schematic diagram of the acquisition channel definition interface in the HMI touch screen provided by the embodiment of the present invention; Figure 6 is a schematic diagram of the curve display interface in the HMI touch screen provided by the embodiment of the present invention; Figure 7 is a schematic diagram of the historical data query interface in the HMI touch screen provided by the embodiment of the present invention.

[0058] The present invention uses an HMI touch screen as the nerve center of the measurement and control box, seamlessly interacts with the network interface of the data acquisition module via a switch, and efficiently receives, analyzes, and processes sensor data in accordance with a specific communication protocol. It has powerful data processing capabilities, covering multiple functions such as calculation, visualization, precise storage, and intelligent instruction issuance, and can operate stably without the support of an external PC or industrial computer. In a complex and changeable test environment, it ensures the rapid deployment and efficient operation of equipment, significantly improving test efficiency and flexibility.

[0059] Further, please continue to refer to Figure 2 , where the data acquisition module may include an analog signal acquisition card, a frequency acquisition card, and a platinum resistance acquisition card; one end of the analog signal acquisition card, the frequency acquisition card, and the platinum resistance acquisition card is connected to the HMI touch screen through a communication module, and the other end is connected to the corresponding sensor through an electrical connector; among them,

[0060] The analog signal acquisition card supports the acquisition of modulus signals with ranges of 4 - 20mA, 0 - 20mA, 0 - 5V, and 0 - 10V, and is used to acquire the output signals of pressure sensors;

[0061] The frequency acquisition card supports the acquisition of pulse signals with a range of 0 - 100k, a logic low level less than 1V, and a logic high level greater than 4V, and is used to acquire the output signals of flow sensors;

[0062] The platinum resistance acquisition card supports the acquisition of PT100 and PT1000 platinum resistances, and is used to acquire the output signals of temperature sensors.

[0063] Specifically, for the analog signal acquisition card, in this embodiment, the DAQM1201 analog acquisition module of Zhouzheng Technology can be selected. It has 8-channel analog-to-digital isolation standard analog acquisition, supports 8-channel differential input with ranges of -5V to +5V, -10V to +10V, 0 to +5V, 1 to +5V, 0 to +10V, -1V to +1V, -20mA to +20mA, 0 to 20mA, 4 to 20mA, -500mV to 500mV, and -150mV to 150mV. The RS485 communication interface is optically isolated, the AD acquisition part is analog-to-digital optically isolated, and the application layer uses the standard MODBUS-TCP protocol, which meets industrial standards and is applicable to various industrial occasions and automation systems. It is convenient to communicate with the upper computer, can achieve rapid networking, and build a monitoring system.

[0064] For the frequency acquisition card, in this embodiment, the DAQM-4302 acquisition card of Zhouzheng Technology can be selected. The frequency acquisition module uses the Modbus tcp protocol and supports a variety of configuration software and PLC systems. It is used for various frequency signal acquisitions and counting, and the input channel mode can configure the counting method. It is equipped with 4-channel open collector output signals that can be used to control other devices. The working voltage of the product is DC15~30V, and it is installed on a standard rail. The isolation voltage of the input channel is 2500V. A variety of communication parameters can be configured. At the same time, the communication port has anti-static and anti-surge designs, and the terminal block type design makes wiring more convenient.

[0065] For the platinum resistance acquisition card, in this embodiment, the DAQM-4201 module of Zhouzheng Technology can be selected. The module uses Ethernet ModbusTCP 6-channel RTD input for various RTD temperature acquisitions, supports various thermistors, and each channel can be independently configured with the input type. It supports ranges such as PT100, cu50, BA2, G53, PT1000, etc. The Ethernet interface uses 10 / 100Mbps. The working voltage of the product is DC15~30V, and it is installed on a standard rail. The isolation voltage of the input channel is 2500V. A variety of communication parameters can be configured. At the same time, the communication port has anti-static and anti-surge designs, and the terminal block type design makes wiring more convenient.

[0066] The data acquisition module designed by the present invention is aimed at multi-type complex signals such as modulus, pulse, and platinum resistance output by the fuel system pressure, temperature, and flow sensors, and corresponding professional acquisition cards are selected. Each acquisition card customizes and optimizes the acquisition circuit and algorithm according to the signal characteristics to achieve wide-range, high-precision, and multi-channel synchronous acquisition, effectively solving the problems of single signal adaptation and low acquisition accuracy of traditional devices. It is the core technology for obtaining accurate test data, and the acquisition card selection and adaptation technical principles need to be protected.

[0067] It can be understood that in the process of implementing the present invention, other data acquisition cards can also be configured in the data acquisition module according to actual needs to achieve the acquisition of different signals.

[0068] Furthermore, the communication port of the relay control module is implemented by a terminal block type scheme and is provided with an anti-static and anti-surge design.

[0069] Specifically, for the relay control module, in this embodiment, the DAQM-4305 module of Zhouzheng Technology can be selected. DAQM-4305 uses the standard MODBUSTCP protocol and supports a variety of configuration software and PLC systems. It is a product with 8-channel relay output. The working voltage of the product is DC9V~36V, and it is installed on a standard rail. Both the output channel and the communication port use optoelectronic isolation, and the isolation voltage reaches 2500V. The communication port also has anti-static and anti-surge designs, and the terminal block type design makes wiring more convenient.

[0070] Furthermore, the PWM control module adopts a closed-loop control strategy, specifically including:

[0071] A current feedback unit for real-time monitoring of the operating current of the fuel pump motor and performing current limiting protection;

[0072] A speed detection unit for calculating the actual rotation speed of the fuel pump;

[0073] A PID adjustment unit for dynamically adjusting the PWM duty cycle according to the set rotation speed and the actual rotation speed to achieve fuel pump rotation speed adjustment.

[0074] Specifically, for the PWM control module, in this embodiment, the Aisikong AQMD series motor control module can be selected. The AQMD series motor drivers use advanced technologies such as precise detection of motor loop current, real-time speed and position detection of DC brush servo motors, regenerative current constant current braking (or braking) technology, and powerful PID adjustment technology, and can perfectly control the motor startup, braking (braking), commutation process, and stall protection. The motor has a short response time and small recoil force; the position control is accurate and rapid; the output current is monitored in real time to prevent overcurrent, effectively protecting the motor and the driver.

[0075] In addition, please continue to refer to Figure 2 , the test measurement and control box provided by the present invention is also configured with a network interface. The test measurement and control box is connected to an external device through the network interface to achieve data communication.

[0076] The working principle and control method of a portable unmanned aerial vehicle fuel system test measurement and control box provided by the present invention are as follows:

[0077] Connect each acquisition card in the test measurement and control box to each sensor of the unmanned aerial vehicle fuel system through an electrical connector, configure the parameters of each sensor through the HMI touch screen, and start real-time data acquisition; the signals collected by the sensors are input into the corresponding acquisition card through the conditioning circuit, converted into digital signals, and then transmitted to the HMI touch screen through the Ethernet switch; the HMI touch screen analyzes the data in real time and displays the dynamic curve, and synchronously stores it in the local memory; at the same time, the HMI touch screen sends control instructions to the relay control module and the PWM control module respectively to perform valve control of the solenoid valve and fuel pump speed adjustment; data communication is carried out with other measurement and control devices through the Ethernet port, and the test data of the measurement and control box can be transmitted to other measurement and control devices, and the data of other measurement and control devices can also be transmitted to the measurement and control box. In addition, the test data can also be exported through the USB or Ethernet interface.

[0078] The portable UAV fuel system test measurement and control box provided by the present invention is adapted to multiple sensors and signal types. Only simple data configuration is required to start the test. The operation process is clear and convenient, and the installation and maintenance are easy to get started, greatly reducing the personnel training cost and operation complexity, and effectively promoting the popularization and application of the equipment. This test measurement and control box relies on the box body and constructs a high-speed and stable data link between the HMI touch screen and each acquisition module, control module and external equipment based on the Ethernet communication architecture and the standard MODBUS-TCP protocol. This communication mode ensures the real-time, accurate and orderly transmission of a large amount of test data, avoids data congestion and packet loss, ensures the timeliness and stability of the system response, helps to realize dynamic data monitoring and precise control, and provides a guarantee for the efficient operation of the measurement and control box.

[0079] In the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0080] Although the present application has been described in conjunction with various embodiments herein, however, in the process of implementing the claimed present application, those skilled in the art can understand and realize other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit can implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0081] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A portable test and control box for an unmanned aerial vehicle fuel system, characterized in that It includes a box body and an HMI touch screen, a data acquisition module, a control module, and a power module integrated inside the box body; among them, the box body is used to accommodate the HMI touch screen and each module; the HMI touch screen is connected to the data acquisition module and the control module, and is used to implement parameter configuration and control instruction generation; the data acquisition module includes multiple different types of data acquisition cards, and the multiple different types of data acquisition cards are used to collect different test data of the UAV fuel system based on the configuration of the HMI touch screen, and transmit the test data to the HMI touch screen; the HMI touch screen is also used to calculate, display, and save the received test data; the control module includes a relay control module and a PWM control module, and the relay control module and the PWM control module are respectively used to execute the control instructions of the HMI touch screen to control the electromagnetic valve switch and adjust the fuel pump speed; the power module provides electrical energy for the entire test measurement and control box.

2. The test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that, The box body is made of new petrochemical PP material and is encapsulated with EPDM sealing strips; several protective devices are also provided on the box body, and the protective devices include an exhaust device and an anti-theft lock hole.

3. The test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that, The HMI touch screen uses Ethernet communication to connect to the data acquisition module and the control module through a switch, and communicates based on the Modbus TCP protocol.

4. A test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that, The software system of the HMI touch screen is developed based on the EasyBuilder Pro platform and includes the following function units: A parameter configuration unit, which is used to configure the range, sampling frequency, and alarm threshold of the data acquisition module; A control logic unit, which is used to implement conditional trigger valve control and PID speed regulation algorithm; A data visualization unit, which supports the drawing, display of real-time curves, bar charts, and data tables, as well as the query and export of historical data.

5. A test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that, The data acquisition module includes an analog signal acquisition card, a frequency acquisition card, and a platinum resistance acquisition card; one end of the analog signal acquisition card, the frequency acquisition card, and the platinum resistance acquisition card is connected to the HMI touch screen through a communication module, and the other end is connected to the corresponding sensor through an electrical connector; among them, the analog signal acquisition card supports the acquisition of modulus signals with ranges of 4~20mA, 0~20mA, 0~5V, and 0~10V, and is used to acquire the output signals of pressure sensors; the frequency acquisition card supports the acquisition of pulse signals with a range of 0~100k, a logic low level less than 1V, and a logic high level greater than 4V, and is used to acquire the output signals of flow sensors; the platinum resistance acquisition card supports the acquisition of PT100 and PT1000 platinum resistances, and is used to acquire the output signals of temperature sensors.

6. A test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that, The communication port of the relay control module is implemented using a terminal block scheme and is provided with an anti-static surge design.

7. A test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that, The PWM control module adopts a closed-loop control strategy, specifically including: A current feedback unit, which is used to monitor the working current of the oil pump motor in real time and perform current limiting protection; A speed detection unit, which is used to calculate the actual speed of the oil pump; The PID adjustment unit is used to dynamically adjust the PWM duty cycle according to the set speed and the actual speed conditions, so as to realize the adjustment of the oil pump speed.

8. A test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that The test measurement and control box is also configured with a network interface, and the test measurement and control box is connected to an external device through the network interface to realize data communication.

9. A test measurement and control box for a portable UAV fuel system according to claim 1, characterized in that The power supply module includes a dual-output DC switching power supply with 24V and 5V outputs.

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