A small unmanned ship machine oil pump detection platform and a detection method thereof

CN122589686APending Publication Date: 2026-08-18CIVIL AVIATION FLIGHT UNIV OF CHINA
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Patent Information

Application Number
CN202610718848.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-24
Publication Date
2026-08-18

AI Technical Summary

Technical Problem

[0006]本发明旨在解决现有机油泵检测设备体积庞大、成本高昂、便携性差、无法适配小型无人艇使用场景,以及人工检测精度低、稳定性不足、难以模拟实船摇摆工况、缺少温度与多维度姿态监测等问题,提供一种小型化、便携式、可独立供电、能够模拟无人艇航行姿态、具备温度保护与振动倾斜监测的机油泵检测台及其检测方法,实现对小型无人艇机油泵转速、压力、扭矩、功率、温度、姿态等关键性能参数的稳定、高精度、高效率检测

Benefits of technology

[0019] This invention offers the following advantages: It employs a miniaturized, deployable, and portable housing structure, enabling rapid deployment and convenient transport of the equipment, reducing operating costs and site limitations; it utilizes flexible direct-drive transmission and multiple shock absorption designs to minimize vibration and gap errors, improve measurement accuracy, and extend equipment lifespan; it incorporates a three-axis swing simulation mechanism and a nine-axis accelerometer to realistically reproduce the unmanned surface vessel's (USV) navigation attitude and platform state, making the test data more closely reflect actual usage conditions; it adds an oil pump temperature sensor to achieve real-time monitoring of operating temperature and over-temperature protection, enhancing testing safety; it adopts an integrated sensor and dual-microcontroller collaborative control architecture, combined with wireless transmission and touch operation, to achieve automated and intelligent testing; and it employs independent battery power supply and inverter voltage regulation design to expand its applicability to various indoor and outdoor scenarios. The overall structure is compact, quick to install, stable in operation, and highly efficient in testing, fully meeting the needs of the entire process of small USV oil pump research and development, production, and factory inspection.

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Abstract

The application discloses a small unmanned ship engine oil pump detection platform and a detection method thereof, and aims to solve the problems of large volume, high cost, poor portability of traditional detection equipment, low precision of artificial detection, and inability to simulate actual ship swing working conditions. The detection platform is composed of a detection platform and a measurement and control main controller, adopts an expandable portable box body, and can be switched between fixed testing and portable towing modes; the platform is provided with a three-axis swing simulation platform, and can truly simulate unmanned ship roll and pitch working conditions. The engine oil pump is directly connected with a sensor and a brake through a flexible coupling, and the measurement precision is effectively improved in cooperation with a damping structure. The system adopts lithium battery independent power supply, the main controller takes a single-chip microcomputer as a core, and integrated sensor and wireless transmission modules can be used to collect speed, torque, power, pressure, temperature and other parameters in real time and upload the parameters to an upper computer. The application is small, portable, accurate in detection, and true in working condition simulation, and is suitable for rapid detection and research and development verification of small unmanned ship engine oil pumps.
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Description

Technical Field

[0001] This invention belongs to the field of oil pump performance testing technology, specifically relating to an oil pump testing bench and testing method suitable for the lubrication system of internal combustion engines in small unmanned surface vessels. It is mainly used for factory testing, performance debugging and R&D verification of oil pumps in small unmanned surface vessels. Background Technology

[0002] Unmanned surface vessels (USVs), as a new type of intelligent waterborne transport equipment, have advantages such as convenient deployment, low operating costs, and the ability to operate in high-risk environments. They have been widely used in fields such as marine monitoring, disaster relief and rescue, security patrol, hydrological exploration, and military reconnaissance. Small USVs typically use internal combustion engines as their main propulsion system, and the stability of the oil supply to their lubrication system directly determines the service life and operational reliability of the power system. As the core actuator of the lubrication system, the performance parameters of the oil pump, such as output pressure, speed, torque, and power, directly affect the lubrication effect of key friction pairs such as bearings and gears in the internal combustion engine. Therefore, specialized performance testing of the oil pump is required in the research and development, production, and maintenance stages.

[0003] Currently, the testing of unmanned surface vessel (USV) oil pumps is mainly divided into two categories: manual testing and testing on a dedicated testing platform. Manual testing relies on technicians using tools such as torque meters, handheld tachometers, and pressure gauges to measure step by step. This method is cumbersome, inefficient, and the test results are highly dependent on the skill level of the personnel. The data consistency and repeatability are poor, making it difficult to meet the needs of batch testing and high-precision research and development.

[0004] Existing oil pump testing benches are mostly designed for large ships and automotive internal combustion engines. Their overall structure is bulky, large in size, and costly to manufacture, making them unsuitable for testing the small, lightweight oil pumps of small unmanned surface vessels (USVs). Furthermore, they lack portability and cannot be quickly used outdoors or in the field. More importantly, traditional testing benches can only perform performance tests in a static state, failing to simulate the real-world operating conditions such as rolling and pitching of USVs during navigation. This results in significant discrepancies between the test data and the actual operating conditions of the vessel, making it difficult to accurately assess the reliability of the oil pump under complex sea conditions.

[0005] Therefore, existing testing methods are no longer suitable for the development and production needs of small unmanned surface vessel oil pumps. There is an urgent need for a small, portable, high-precision, and low-cost dedicated testing device that can simulate swaying conditions. Summary of the Invention

[0006] This invention aims to solve the problems of existing oil pump testing equipment, such as large size, high cost, poor portability, inability to adapt to the use scenarios of small unmanned surface vessels (USVs), low accuracy and instability of manual testing, difficulty in simulating the rolling conditions of real ships, and lack of temperature and multi-dimensional attitude monitoring. It provides a miniaturized, portable oil pump testing platform and its testing method that can be independently powered, can simulate the navigation attitude of USVs, and has temperature protection and vibration tilt monitoring. This enables stable, high-precision, and high-efficiency testing of key performance parameters of oil pumps of small USVs, such as speed, pressure, torque, power, temperature, and attitude.

[0007] The small unmanned surface vessel (USV) oil pump testing platform of this invention mainly consists of an oil pump testing frame and an oil pump measurement and control main controller. The testing frame has an externally deployable portable housing, which is connected to the internal frame via a U-shaped sliding groove. The housing has a shock-absorbing structure around its perimeter. When deployed, the housing can be used directly as a support for the testing platform. The entire system can quickly switch between a fixed testing state and a portable towing state to meet the needs of different indoor and outdoor scenarios. A three-axis movable simulation platform is installed at the bottom of the testing frame, capable of simulating the roll and pitch attitudes of the USV while navigating on water. The platform is equipped with an acceleration detection element and a nine-axis accelerometer for real-time acquisition of rolling attitude, vibration, and tilt signals, improving the consistency between the test results and actual operating conditions.

[0008] An oil pump support frame is installed on the testing bench to provide stable and rigid support for the oil pump and hysteresis brake. The load braking device, integrated multi-functional sensor, oil pump mounting adapter, oil pump under test, and oil pump temperature sensor are arranged sequentially. A flexible coupling enables direct transmission between the oil pump under test, the integrated multi-functional sensor, and the load braking device, ensuring accurate torque transmission while reducing transmission backlash and vibration interference, and preventing rigidity damage during low-speed operation. The oil pump under test is fixed in place by a mounting adapter and vibration damping pads. The integrated multi-functional sensor is mounted on the bench frame via a vibration damping support structure, effectively reducing the impact of bench vibration on measurement accuracy. The oil pump temperature sensor monitors the pump body's operating temperature in real time to prevent overheating damage.

[0009] The testing system utilizes a high-performance battery pack for independent power supply, coupled with an inverter rectifier module and motor speed control device, providing a stable and reliable power source to meet outdoor testing needs without an external power grid. The oil pump monitoring and control main controller uses a high-performance microcontroller as its core, paired with an auxiliary data processing unit. It integrates touch display and wireless data transceiver functions, enabling real-time acquisition, filtering, and display of various testing parameters, and remote uploading of data to a host computer, achieving a combination of local control and remote monitoring. A nine-axis accelerometer provides real-time feedback on the vibration and tilt status of the testing platform, further ensuring test stability and data accuracy.

[0010] Furthermore, the unfoldable portable case is made of lightweight, high-strength materials, and is equipped with a support structure and casters at the bottom. When folded, it forms a closed protective space, and when unfolded, the panel is laid flat to form a stable testing platform.

[0011] Furthermore, the three-axis movable simulation platform is a two-degree-of-freedom swing platform, which can adjust the swing angle and motion frequency according to a preset program. The acceleration detection element feeds back the real-time attitude signal to the main controller to realize closed-loop adjustment of the swing condition.

[0012] Furthermore, the integrated multi-functional sensor integrates speed detection, torque detection, power detection functions and a wireless communication module. The data acquisition frequency can be continuously adjusted within a set range, and the signal is transmitted to the main controller after filtering to ensure stable and accurate data.

[0013] Furthermore, the oil pump mounting adapter is equipped with multiple installation interfaces, which can be adapted to quickly clamp oil pumps of different models of small unmanned surface vessels, and the shock absorption structure further improves the testing stability.

[0014] Furthermore, the oil pump monitoring and control main controller is equipped with a touch screen display, which supports parameter setting, data storage, real-time display and remote control, making operation intuitive and convenient, and improving detection safety and flexibility.

[0015] Furthermore, the oil pump support frame is made of stainless steel profiles, plates and connectors, with a robust structure and sufficient rigidity, providing reliable installation support for the oil pump and hysteresis brake.

[0016] Furthermore, the oil pump temperature sensor adopts the RS485 transmission protocol, has a wide temperature detection range and fast response, and can monitor the oil pump operating temperature in real time, triggering over-temperature warnings and protective shutdowns.

[0017] Furthermore, the nine-axis accelerometer supports Bluetooth / serial TTL dual transmission modes, has a stable output frequency, wide voltage adaptability, and can accurately detect vibration and tilt of the testing platform, providing data support for working condition simulation and equipment safety.

[0018] Accordingly, this invention also proposes a method for testing the oil pump of a small unmanned surface vessel (USV), applied to the aforementioned testing platform. First, the oil pump under test is clamped into place using a fixed adapter plate, the oil circuit and electrical circuit are connected, and an oil pump temperature sensor is installed. An independent power supply is turned on, and the system completes a power-on self-test. The main controller sets test parameters such as target speed, load torque, swing angle, swing frequency, and temperature threshold, and enables wireless data transmission. The main controller drives the load braking device to operate, causing the oil pump to work according to the set operating conditions. An integrated multi-functional sensor, an acceleration detection element, an oil pump temperature sensor, and a nine-axis accelerometer synchronously collect operating parameters, operating condition signals, operating temperature, vibration, and tilt data, which are then filtered and uploaded to the main controller. The main controller displays all data in real-time on a touchscreen and uploads it to a host computer via a wireless module. A three-axis movable simulation platform executes swinging motions according to the program, simulating the actual navigation conditions of the USV. The temperature sensor and the nine-axis accelerometer monitor and provide feedback in real time, automatically triggering protection when the temperature exceeds the limit. This completes the full-condition performance test. After the test, the drive and load are stopped, the power is turned off, and the oil pump is disassembled, completing the entire testing process.

[0019] This invention offers the following advantages: It employs a miniaturized, deployable, and portable housing structure, enabling rapid deployment and convenient transport of the equipment, reducing operating costs and site limitations; it utilizes flexible direct-drive transmission and multiple shock absorption designs to minimize vibration and gap errors, improve measurement accuracy, and extend equipment lifespan; it incorporates a three-axis swing simulation mechanism and a nine-axis accelerometer to realistically reproduce the unmanned surface vessel's (USV) navigation attitude and platform state, making the test data more closely reflect actual usage conditions; it adds an oil pump temperature sensor to achieve real-time monitoring of operating temperature and over-temperature protection, enhancing testing safety; it adopts an integrated sensor and dual-microcontroller collaborative control architecture, combined with wireless transmission and touch operation, to achieve automated and intelligent testing; and it employs independent battery power supply and inverter voltage regulation design to expand its applicability to various indoor and outdoor scenarios. The overall structure is compact, quick to install, stable in operation, and highly efficient in testing, fully meeting the needs of the entire process of small USV oil pump research and development, production, and factory inspection. Attached Figure Description

[0020] Figure 1 This is a front perspective view of a small unmanned surface vessel oil pump testing platform according to the present invention; Figure 2 This is a front view of a small unmanned surface vessel oil pump testing platform according to the present invention; Figure 3 This is a rear perspective view of a small unmanned surface vessel oil pump testing platform according to the present invention. Figure 4 This is a top view of a small unmanned surface vessel oil pump testing platform according to the present invention; In the diagram: 1. External housing of the oil pump test and control bench; 2. Three-axis movable test bench for oil pump testing; 3. High-performance battery and motor electronic speed controller; 4. Main controller for oil pump test and control; 5. Inverter rectifier module; 6. High-performance hysteresis brake; 7. Oil pump support frame; 8. Oil pump fixed mounting adapter and flexible coupling; 9. Integrated high-performance sensor; 10. Oil pump temperature sensor; 11. Oil pump under test; 12. Accelerometer; 13. Nine-axis accelerometer. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This embodiment provides a small unmanned surface vessel (USV) oil pump testing station, which consists of two main parts: an oil pump testing stand and an oil pump monitoring and control main controller 4. It can achieve high-precision testing of the oil pump's speed, pumping pressure, torque, power, operating temperature, vibration, and tilt status. It can simulate the actual swaying conditions of an USV during navigation and features miniaturization, portability, independent outdoor power supply, and over-temperature protection. The oil pump testing stand is installed inside an external housing 1 of the oil pump monitoring and control stand. The external housing 1 has an expandable structure, with the middle section expandable and fixed to the test platform. When expanded, it serves as a support bracket for the lower part of the testing station. The housing and the stand are connected by a sliding groove with a mountain-shaped groove structure, ensuring a tighter contact between the stand and the housing. The inside of the housing is lined with anti-collision foam to effectively prevent scratches and damage during transportation and use. The housing can flexibly switch between a fixed testing mode and a portable towing mode. The bottom of the test bench is equipped with an oil pump detection three-axis movable test bench 2. The lower part of the three-axis movable test bench 2 is equipped with a drive motor, which can simulate the rolling, pitching and other swaying conditions of the unmanned surface vessel. An acceleration sensor 12 and a nine-axis acceleration sensor 13 are installed on the test bench. The acceleration sensor 12 is used to collect acceleration signals in real time under swaying conditions, and the nine-axis acceleration sensor 13 is used to detect the vibration and tilting state of the test bench. Both of them feed the signals back to the controller to realize closed-loop control of the working conditions.

[0023] The testing bench is equipped with an oil pump support frame 7, made of stainless steel profiles, plates, and connectors, providing stable and rigid support for the oil pump 11 and the hysteresis brake 6. The high-performance hysteresis brake 6, flexible coupling 8, integrated high-performance sensor 9, oil pump mounting adapter 8, the oil pump under test 11, and the oil pump temperature sensor 10 are installed sequentially. The high-performance hysteresis brake 6 is connected to the integrated high-performance sensor 9 via the flexible coupling 8. The other end of the integrated high-performance sensor 9 is rigidly connected to the shaft of the oil pump under test 11 via another flexible coupling, effectively reducing transmission backlash and vibration interference, and significantly improving measurement accuracy. The oil pump under test 11 is fixed to the testing bench via the oil pump mounting adapter 8 and a vibration damping plate. The integrated high-performance sensor 9 is fixed to the bench frame via a vibration damping bracket. The adapter is fastened with bolts, which greatly reduces the impact of bench vibration on the measurement data. The oil pump temperature sensor 10 uses the RS485 transmission protocol and has a detection temperature range of -50~400℃, monitoring the oil pump's operating temperature in real time to prevent overheating damage. The bench power supply system consists of a high-performance battery 3, a motor electronic speed controller 3, and an inverter / rectifier module 5. The high-performance battery 3 provides a stable DC power supply for the entire testing system. The inverter / rectifier module 5 performs AC-DC conversion to meet the power supply requirements of the motor and controller. The motor electronic speed controller 3 receives control signals and can precisely adjust the drive motor speed and output torque. The oil pump measurement and control main controller 4 is fixed to the test bench base and is electrically connected to components such as the integrated high-performance sensor 9, accelerometer 12, oil pump temperature sensor 10, nine-axis accelerometer 13, motor electronic speed controller 3, and high-performance hysteresis brake 6 via data connection cables, completing signal acquisition, parameter display, and motion control.

[0024] The outer casing 1 of the oil pump testing and control bench is made of lightweight, high-strength alloy plate and is an expandable portable casing. The bottom of the casing is equipped with support feet and towing wheels. When unfolded, the casing panel lays flat to form a test bench support surface; when folded, it forms a closed protective casing. An internal mountain-shaped guide groove is installed, which cooperates with the bottom slider of the testing bench to achieve pull-out installation. The surrounding area is lined with anti-collision cushioning foam, ensuring both transportation protection and operational stability. The three-axis movable oil pump testing bench 2 is a two-degree-of-freedom / three-axis swing simulation platform, consisting of a base, drive motor, and swing mechanism. It can simulate the roll and pitch attitudes of an unmanned surface vessel (USV) according to a preset program. The bench panel is fixedly connected to the testing bench base. The swing angle and frequency can be adjusted via the oil pump testing and control main controller 4, realistically replicating the actual working attitude of the oil pump on the vessel. The high-performance battery 3 uses a large-capacity high-performance lithium battery pack, which can output a stable DC voltage to meet the independent operation of the test bench in outdoor conditions without external power supply. The motor electronic speed controller 3 uses a PWM speed control drive module, receives the control signal output by the oil pump measurement and control main controller 4, and accurately adjusts the operating status of the three-axis movable frame 2 drive motor and hysteresis brake 6.

[0025] The oil pump monitoring and control main controller 4 integrates an Arduino Mega2560 microcontroller as the main control unit and an Arduino Nano microcontroller as the wireless data receiver. Equipped with a 7-inch touchscreen display and multiple data interfaces, it can acquire and process sensor signals in real time, displaying parameters such as speed, torque, power, pressure, temperature, acceleration, vibration, and tilt. It supports data storage, local touch operation, and wireless data transmission, and can upload detection data to a PC for remote monitoring and control. The inverter rectifier module 5 connects the high-performance battery 3 to the AC power load, achieving bidirectional conversion between DC and AC power. It provides a stable output voltage suitable for the motor and controller, and features overvoltage, overcurrent, and short-circuit protection to ensure safe and stable power supply. The high-performance hysteresis brake 6 provides stable and controllable load torque, simulating the actual working load of the oil pump. Through a flexible coupling 8, it is rigidly connected to an integrated high-performance sensor 9, resulting in smooth torque output without slippage or impact, suitable for the low-speed, high-precision detection needs of small oil pumps.

[0026] The oil pump mounting adapter plate 8 features multiple mounting hole sizes to accommodate different models of small unmanned surface vessel (USV) oil pumps. Equipped with shock-absorbing pads, it effectively reduces bench vibration. The flexible coupling 8 uses a high-damping, elastic material to compensate for coaxiality errors, buffer transmission shocks, and ensure accurate torque transmission. The integrated high-performance sensor 9 integrates a speed sensor, torque sensor, power sensor, and a wireless data transceiver module. It can simultaneously collect parameters such as oil pump speed, output torque, and drive power. The signals are internally filtered before being transmitted to the oil pump monitoring and control main controller 4. The data acquisition frequency can be adjusted within the range of 0.1Hz to 100Hz. The oil pump 11 under test is an oil pump for the internal combustion engine of a small USV. It is fixedly mounted via the oil pump mounting adapter plate 8, with its input end flexibly connected to the integrated high-performance sensor 9 and its output end connected to a simulated lubrication pipeline. Performance testing is completed under the drive of the testing bench. Accelerometer 12 is fixed to the three-axis movable test bench 2 for oil pump testing. It detects the bench's swaying acceleration and attitude signals in real time and feeds them back to the oil pump measurement and control main controller 4, realizing real-time monitoring and closed-loop adjustment of the swaying condition, thus improving the authenticity of the test conditions and the accuracy of the data. Nine-axis accelerometer 13 uses Bluetooth wireless transmission / serial TTL transmission, with an output frequency of 10Hz and an operating voltage of 5V / 12V. It detects the vibration and tilt status of the test bench in real time, providing data support for test stability and equipment safety.

[0027] During testing, the oil pump 11 to be tested is first fixed to the test bench via the oil pump mounting adapter 8. The inlet and outlet oil lines are connected, and the oil pump temperature sensor 10 is installed. The flexible coupling 8 is confirmed to be in place without looseness or interference. Then, the high-performance battery 3 is turned on, the inverter rectifier module 5 starts supplying power, and the oil pump control controller 4 completes its self-test. The touchscreen displays the system's ready status. Parameters such as test speed, load torque, oscillation condition, and temperature threshold are set through the oil pump control controller 4. The wireless data transmission mode is confirmed to be enabled. The controller sends control commands to the motor electronic speed controller 3, driving the high-performance hysteresis brake 6 to rotate the oil pump 11. The integrated high-performance sensor 9, acceleration sensor 12, oil pump temperature sensor 10, and nine-axis acceleration sensor 13 simultaneously collect data, which is then filtered and uploaded to the controller. The touchscreen of the oil pump monitoring and control main controller 4 displays real-time detection data such as speed, torque, power, pressure, temperature, acceleration, vibration, and tilt. Simultaneously, it uploads data to a PC via a wireless data transceiver module for remote display and control. The three-axis movable test bench 2 of the oil pump performs a swinging motion according to a set program. Accelerometer 12 provides real-time attitude feedback, nine-axis accelerometer 13 monitors vibration and tilt in real-time, and oil pump temperature sensor 10 monitors the pump body temperature in real-time. If the temperature exceeds the limit, it automatically triggers a protection shutdown, simulating the oil pump's operating state under real-world unmanned surface vessel (USV) navigation conditions, thus improving the reliability of the test results. After testing, the main controller 4 stops the drive and load, shuts off the power supply, disassembles the oil pump 11 under test, and tidies up the test bench.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small unmanned surface vessel (USV) oil pump testing platform, comprising an oil pump testing stand and an oil pump measurement and control main controller (4), characterized in that: The oil pump testing bench is provided with an external housing (1) for the oil pump testing and control bench. The external housing (1) is an expandable portable housing. The housing and the bench are connected by a mountain-shaped groove. Anti-collision foam is installed around the inside of the housing. When unfolded, it serves as the lower support of the testing bench. The whole can be switched between fixed test mode and portable towing mode. The bottom of the testing bench is provided with a three-axis movable oil pump testing bench (2). An acceleration sensor (12) is set on the three-axis movable bench (2) to simulate the rolling and pitching conditions of the unmanned surface vessel. The testing bench is equipped with a high-performance hysteresis brake (6), an integrated high-performance sensor (9), an oil pump fixed mounting adapter plate (8), an oil pump to be tested (11), an oil pump support frame (7), and an oil pump temperature sensor (10). The oil pump (11) under test is rigidly connected to the integrated high-performance sensor (9) and the high-performance hysteresis brake (6) through a flexible coupling (8). The oil pump (11) under test is fixed on the test bench through the oil pump fixed mounting adapter (8) and the shock-absorbing pad. The system power supply consists of a high-performance battery (3), a motor electronic speed controller (3) and an inverter rectifier module (5), and is powered independently by a high-performance lithium battery. The oil pump measurement and control main controller (4) uses an Arduino Mega2560 microcontroller as the main control unit and integrates a wireless data transceiver module. It can display the detection parameters locally and upload the data to the PC. The three-axis movable test bench (2) is also equipped with a nine-axis acceleration sensor (13) to detect the vibration and tilt of the test bench.

2. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The outer casing (1) of the oil pump test and control platform is made of lightweight high-strength alloy plate. It is equipped with support feet and drag wheels at the bottom. When folded up, it becomes a closed protective casing. When unfolded, the rear panel is laid flat to form a test support surface.

3. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The oil pump detection three-axis movable test bench (2) is a two-degree-of-freedom swing simulation platform. The swing angle and frequency can be adjusted according to a preset program. The acceleration sensor (12) collects the swing attitude signal in real time and feeds it back to the oil pump measurement and control main controller (4) to realize closed-loop control.

4. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The integrated high-performance sensor (9) integrates a speed sensor, a torque sensor, a power sensor and a wireless data transceiver module. The data acquisition frequency can be adjusted between 0.1Hz and 100Hz. The acquired signal is transmitted to the oil pump measurement and control main controller (4) after being filtered.

5. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The oil pump mounting adapter (8) is equipped with multiple mounting holes, and the integrated high-performance sensor (9) is fixed to the frame of the test bench by a shock-absorbing bracket to reduce the impact of test bench vibration on measurement accuracy.

6. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The oil pump monitoring and control main controller (4) also includes an Arduino Nano microcontroller as a wireless data receiver, equipped with a 7-inch touch screen, and supports local touch operation, data storage and remote control.

7. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The oil pump support frame (7) is made of stainless steel profiles, plates and connectors, providing stable rigid support for the oil pump (11) and the hysteresis brake (6).

8. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The oil pump temperature sensor (10) adopts the RS485 transmission protocol and has a detection temperature range of -50~400℃. It monitors the working temperature of the oil pump in real time and realizes over-temperature protection.

9. The small unmanned surface vessel oil pump testing platform according to claim 1, characterized in that: The nine-axis accelerometer (13) supports Bluetooth wireless transmission / serial TTL transmission, has an output frequency of 10Hz, and an operating voltage of 5V / 12V. It is used to detect the overall vibration and tilt of the testing platform.

10. A method for testing the hydraulic pump of a small unmanned surface vessel (USV), applied to the hydraulic pump testing platform for a small USV as described in any one of claims 1-9, characterized in that... Includes the following steps: The oil pump (11) to be tested is clamped and fixed by the oil pump mounting adapter plate (8), the power supply of the high-performance battery (3) is turned on, and the test parameters and swing conditions are set by the oil pump measurement and control main controller (4). The high-performance hysteresis brake (6) is activated to drive the oil pump. The integrated high-performance sensor (9), acceleration sensor (12), oil pump temperature sensor (10) and nine-axis acceleration sensor (13) collect data synchronously. The oil pump measurement and control main controller (4) filters the signal and displays it locally, and uploads it to the PC through the wireless data transceiver module. The three-axis movable test bench (2) of the oil pump simulates the swaying condition of the unmanned boat according to the program to complete the performance test under the real working condition. After the test is completed, the drive is stopped and the power is cut off, and the oil pump to be tested (11) is disassembled.