812 results about "Combined test" patented technology

The invention discloses an unmanned aerial vehicle flight control system vulnerability detection method based on data flow analysis and LLM, and belongs to the technical field of intelligent software testing. Comprising the following steps: extracting a code function module associated with user operation in an unmanned aerial vehicle flight control system through a data flow analysis method, and establishing an operation-code mapping relation library; generating a structured natural language semantic description for each function module code by adopting a large language model LLM, and forming a multi-dimensional semantic feature vector; based on correlation analysis of multi-module semantic features, a combined test scene is constructed, and a natural language test case is generated; the natural language test case is converted into an executable test code through reverse semantic mapping, and coding reconstruction of test logic is completed; and executing a test code and capturing a runtime log in an unmanned aerial vehicle simulation environment, and performing vulnerability feature extraction and root cause positioning by using a large language model. According to the method, the efficiency is improved, and meanwhile, the deep coverage test of a complex interaction scene is supported.

The invention provides a credibility measurement method and system for an unmanned multi-mode perception algorithm, a data-driven virtual simulation test platform is constructed, and feature distribution is counted on the basis of actually-collected actual measurement data. Through dynamic model modeling and state transition, an end-to-end closed loop sensing process is described. Afterwards, for the problem that a traditional combined test method is low in efficiency due to the high dimension of scene parameters, a black box substitution model between the scene parameters and a perception test result is established, historical test data is evaluated by using a Bayesian optimization algorithm to generate the most antagonistic scene parameters in a next iteration test, and the efficiency of the traditional combined test method is improved. In this way, the confrontation of the test environment is continuously improved, and the test efficiency is effectively improved. And finally, a perception algorithm credibility measurement module is constructed, a perception failure scene is extracted through playback test data, a credibility evaluation index system is constructed, and comprehensive credibility evaluation of the tested perception system is realized.

The invention relates to an online multi-dimensional comprehensive test evaluation method for an automatic driving test. The method comprises the following steps: constructing a test scene library; constructing a test scene complexity model; building an intelligent driving joint simulation test platform, and embedding the intelligent driving algorithm into the intelligent driving joint simulation test platform; constructing an automatic driving test multi-dimensional evaluation index system for performing multi-dimensional performance evaluation on the automatic driving vehicle; an intelligent driving joint simulation test platform is utilized to obtain vehicle test data, an evaluation index system and a test scene complexity model are combined to calculate objective evaluation index weights, then comprehensive performance quantitative scores are calculated, and finally an automatic evaluation report is output and obtained. Compared with the prior art, the subjectivity of manual evaluation can be reduced, and the evaluation efficiency of the automatic driving vehicle is improved; comprehensive and objective quantitative scoring can be carried out on the multi-dimensional performance of the automatic driving vehicle, and the influence of different test scenes on the scoring difference of the automatic driving vehicle is reduced.

The invention discloses a partial discharge and breakdown combined test system and test method under wide temperature range and variable air pressure, which are suitable for evaluating the insulating properties of insulating materials, cables and power equipment under high and low temperature and different air pressure conditions. The system comprises a vacuum oven, a partial discharge and withstand voltage breakdown joint test module, an explosion-proof cable joint, a control module and a detection module, the vacuum oven can realize temperature regulation and control from-70 DEG C to + 200 DEG C and an air pressure environment of 10 <-3 > Pa, and the test module integrates a high voltage generator, a coaxial electrode and a partial discharge sensor. Partial discharge detection and breakdown voltage measurement can be completed in the same test environment. According to the test method, the electrical response characteristics of the insulating material under different working conditions are obtained through regulation and control of environment temperature and pressure, execution of a test process and data acquisition and analysis. The device is compact in structure and high in safety, and has the capabilities of joint testing, high-precision regulation and control and adaptability to complex environments.

The invention is suitable for the technical field of signal testing, and provides a high-speed serial signal testing method and system and semiconductor testing equipment, and the high-speed serial signal testing method comprises the steps: carrying out the time sequence adjustment of a testing signal through a phase-adjustable clock reference, actively introducing controllable jitter, and carrying out the jitter tolerance testing; a target test signal is sent to a receiving end through an emission driver, after a receiving signal is obtained, a target sampling time sequence is extracted based on clock recovery, a programmable receiving delay chain is controlled to carry out time scanning, and receiving data at multiple sampling moments are obtained; comparing each sampling data with the test signal, counting the bit error rate under each delay setting, and completing signal quality evaluation; the scheme has the advantages of modularization, high precision, low cost and the like, and the comprehensive test efficiency and reliability of the semiconductor test equipment on high-speed serial signals are improved.

The invention discloses an aviation hybrid power turbine power generation system test run rack which comprises a test run platform, a first mounting rack arranged on the test run platform and used for supporting an engine and a second mounting rack arranged on the test run platform and used for supporting a generator. A linear guide rail parallel to the axial direction of the engine, a bottom plate arranged on the linear guide rail in a sliding mode and a driving mechanism used for driving the bottom plate to slide relative to the linear guide rail are arranged on the test run platform, and the first mounting frame is arranged on the bottom plate; the driving mechanism drives the first mounting frame to move through the bottom plate so as to adjust the distance between the first mounting frame and the second mounting frame; the test bench for the aviation hybrid power turbine power generation system can be suitable for combined tests of different engines and generators, can be compatible with complete machine test tests of an aviation hybrid power split type eddy current system or an integrated type eddy current system, and is wide in application range.

The invention discloses a comprehensive testing device for a high-voltage circuit breaker, and the device comprises a main control module which is connected with a power control module, a secondary detection module, a jump sampling module, and an auxiliary power module. The secondary detection module is respectively connected with the jump sampling module, the port protection module and the heavy load connector; the auxiliary power supply module is connected with the power supply control module and the jump sampling module. The port protection module is connected with the time test port. The power supply control module is connected with the jump sampling module, the heavy load connector, the sensor port, the external synchronization port and the return resistance test port. The invention further discloses a comprehensive testing method for the high-voltage circuit breaker. According to the comprehensive testing device, the functions of circuit breaker mechanical characteristic testing, circuit breaker secondary loop detection and circuit breaker loop resistance testing are integrated into the same device, the circuit breaker can be detected only by completing wiring between the circuit breaker and the comprehensive testing device, operation is convenient, and the testing result is accurate and is not affected by the personnel level.

The invention specifically discloses a method for evaluating the health state of a cigarette comprehensive test board, and the method comprises the steps: obtaining the fault type of the cigarette comprehensive test board, and carrying out the analysis of the fault type, so as to obtain the self degradation of equipment and the influence factors of the fault; carrying out fault influence factor analysis on influence factors of equipment degradation and faults, and carrying out numeralization on the influence factors; carrying out fault data acquisition and processing on the cigarette comprehensive test bench, structuring data of equipment faults, and further carrying out fault data expansion through a generative model GAN network; and a DNN deep neural network is constructed, training is performed by using the expanded fault data, and then fault probability evaluation is performed on the cigarette comprehensive test bench through the DNN deep neural network. According to the invention, the convenience and accuracy of health assessment of the cigarette comprehensive test board can be improved.

The invention discloses a combined sealing device frictional wear and external leakage test bed and a test method thereof, and aims to solve the problem that the existing device cannot accurately know the sealing wear. The test bench comprises a rack, a test piece, a stay wire sensor, an oil pipe and a hydraulic system, wherein an oil tank is arranged in the rack. The test piece comprises a test sealing assembly and a plunger, and the stay wire sensor is connected with a sealing combination structure. During testing, the hydraulic system drives the plunger and the sealing assembly to move relatively, the pull wire sensor measures displacement, friction force is calculated by combining pressure data to reflect abrasion, and the oil groove collects leaked oil. According to the invention, comprehensive testing of friction, wear and leakage is realized, sealing performance and wear rules under multiple working conditions can be analyzed, the structure is convenient to observe and operate, and optimization of the sealing structure is facilitated.

The invention discloses a radio frequency plasma comprehensive testing device and method for an ion process system, and relates to the technical field of plasma testing, and the device comprises a host and a coupling probe; the coupling probe is placed on a radio frequency transmission line of an ion process system, is used for carrying out coupling sampling on radio frequency energy through a capacitance or inductance coupling mode according to an electromagnetic field coupling principle, obtains current and voltage signals through coupling, and is also used for sensing and obtaining real-time temperature data in the probe; the host comprises a main body shell and a shielding frame arranged in the main body shell, and a data processing and analyzing unit is arranged in the shielding frame and used for performing data processing on the received voltage, current and temperature signals; the radio frequency power supply power, the radio frequency power supply frequency spectrum, the impedance of the matcher and the vacuum reaction cavity and other ion process system parameter values are calculated and generated, and meanwhile clutter capture and radio frequency transmission harmonic wave test results in radio frequency transmission are output, so that the comprehensive test of the ion process system is realized.

The present invention provides a general control method for a transformer and reactor comprehensive test system, which relates to the field of electrical control technology, including deploying a multi-dimensional sensor array to obtain power evolution data; establishing a multi-scale digital twin model to generate a power feature mapping matrix; using a graph neural network to realize cross-domain feature extraction, establishing a self-calibration optimization algorithm to generate an evolutionary power digital twin model; and constructing a hybrid power-classical fault diagnosis system to realize fault prediction and intelligent diagnosis. The present invention improves the accuracy and efficiency of transformer and reactor testing, and realizes the intelligence of multi-domain coupling analysis and fault prediction.

The invention belongs to the technical field of board card testing, and particularly relates to a board card voltage and current measurement and insulation voltage resistance testing method and system, and the method comprises the steps: starting a testing cabinet of a board card testing system, carrying out the self-inspection, and setting system parameters; a power supply is loaded according to set system parameters, and a load mode is selected according to different product requirements to provide working voltage and current for the board card; after the load mode is confirmed, voltage and current measurement and insulation voltage resistance test are carried out on the board card in a probe contact mode, and test data are transmitted to the data processing and analyzing module in real time; and the data processing module judges according to preset upper and lower limit standards after receiving the measurement and test data, and stores the data and an evaluation result to the storage unit at the same time. Through unified control and data processing, voltage and current measurement and insulation voltage resistance testing of the board card are integrated in one system, automatic board card comprehensive testing is achieved, and the accuracy and efficiency of board card comprehensive testing are improved.

The invention discloses an electrical safety test data analysis method and system for an electrical cabinet, and relates to the technical field of electrical measurement and test. The method is used for solving the problems of single test dimension, poor anti-interference capability and inaccurate fault positioning in the safety test of the electrical cabinet. Firstly, multi-channel electrical parameter synchronous acquisition is triggered based on a working condition event, real discharge and interference signals are distinguished through time-frequency analysis, and a time sequence incidence matrix of discharge pulses and load currents is established; then, analyzing phase distribution characteristics of partial discharge, calculating a correlation coefficient between a discharge repetition rate and a load current, and dynamically adjusting a weight to generate an insulation state comprehensive test index; further, insulation degradation characteristics are extracted through signal decomposition, and an insulation degradation trend and a fault probability are predicted in combination with energy entropy analysis and discharge mode recognition; and finally, the position of a fault component is analyzed and positioned based on the impedance network, and a maintenance priority sequence is generated according to the fault probability and the degradation rate.

The invention discloses an ionic type rare earth ore body pressurization, permeation and shearing combined test device. The device comprises a shear box, a load system, a dynamic permeation structure, a graded filtration structure, a data assembly and a processing terminal, the load system is used for applying a horizontal load and a vertical load to the shear box; the dynamic permeation structure is used for containing a leaching solution and enabling the leaching solution to flow into the shear box; the graded filtration structure is used for collecting a leaching solution reacted with the rare earth ore body sample and acquiring graded filtration analysis data; the data assembly is used for summarizing monitoring data in the penetration and shearing processes; the processing terminal is used for controlling; the shear box comprises an upper box, a lower box, an upper seepage pressing plate, a lower seepage pressing plate, an upper filter screen plate, a lower filter screen plate, a cover plate, a microporous metal plate and filter paper. According to the invention, the integration of fine simulation and penetration and shear test of the in-situ ore leaching injection-production process is realized, and a test basis can be provided for in-situ ore leaching injection-production parameter design, rare earth ore body stability analysis and disaster risk assessment.

The invention relates to the technical field of balance ability testing and health management, and discloses a multi-mode active and passive combined balance ability testing method which comprises the following steps: acquiring basic physiological data and dynamic mechanical data of a tester through a sensor, and executing a sensory comprehensive test, a passive test and an adaptability test; calculating a balance score according to the gravity center trajectory data of the sensory comprehensive test, generating a passivity score based on the active force response time and angular momentum data of the passivity test, and generating an adaptability score according to the swing energy data of the adaptability test; and integrating the balance score, the passivity score and the adaptability score, and generating a multi-dimensional balance capability evaluation report through comprehensive weight calculation. According to the method, the problem of insufficient multi-dimensional evaluation in the existing method can be effectively solved, and a more comprehensive, accurate and personalized balance capability test result is provided.

The invention relates to the technical field of embedded system testing, in particular to a method for testing functionality and stability of a core board service component, which comprises the following steps of: initializing a core board testing environment, ensuring that software and hardware parameters are consistent in a testing process, and aiming at the service component on a core board, testing the service component on the core board; the method comprises the following steps of: analyzing and generating a dependency relationship graph among components by utilizing a dependency graph model, optimizing a key dependency relationship through a deep learning model, performing functional testing on the components according to a priority based on the optimized dependency relationship graph, and testing the stability of a core board during high-concurrency and multi-task operation through multi-thread scheduling and concurrent task simulation. Abnormal, resource competition and deadlock problems are detected; and finally, in combination with an actual application scene, carrying out component hot plug, network abnormity, power-off recovery and other scene tests, and analyzing test data to generate a comprehensive test report. According to the method, the test coverage rate and efficiency are improved, and stable operation of the system under complex conditions is ensured.

The invention relates to the technical field of aero-engines, and particularly provides a variable cycle engine duct experiment system and experiment method. A variable cycle engine duct experiment system comprises: a first combined experiment member comprising a main flow valve and a shunt ring; the second combined experiment piece comprises a first outer culvert, a second outer culvert and an ejector; the inlet of the variable capacitor second external culvert experiment piece is connected with the external culvert outlet of the shunt ring, and the outlet is connected with the second external culvert; an inlet of the first gas collection tank is communicated with an inner culvert outlet of the shunting ring; the bypass ratio adjusting valve is used for adjusting the bypass ratio at the shunting ring; an inlet of the second gas collection tank is connected with an outlet of the first gas collection tank through an inner culvert pressurization simulator, and an outlet is communicated with the first outer culvert; an inlet of the variable capacitor confluence duct experiment piece is communicated with the second outer duct; and the outer culvert throttle valve is connected with an outlet of the variable capacitor confluence culvert experiment piece. According to the technical scheme, engine duct experiments in multiple modes can be achieved, and the experiment efficiency is improved.

The invention relates to the technical field of generator test equipment, and particularly discloses a comprehensive test platform for a generator. The bearing assembly, the hoisting assembly and the testing instrument are installed on the vehicle body, the bearing assembly comprises two bearing arms and a driving mechanism, and weighing sensors are installed on the bearing arms and can be far away from and close to each other; the test instrument can obtain related test data based on weighing data fed back by the weighing sensor. The comprehensive test platform for the generator can move, can automatically complete loading and unloading of the diesel generator, does not need assistance of other equipment, and remarkably reduces the requirements for site conditions; data such as the whole machine weight, the fuel consumption rate and the operation stability can be measured, the test items are rich, and the functions are complete; and the transfer frequency in the comprehensive test process can be effectively reduced. After the test is completed, the diesel generator can be transferred and loaded to another test device, which is efficient and fast; and meanwhile, the method has the technical advantages of good applicability, easiness in implementation, relatively low cost and the like.

The invention relates to an in-cabinet condensation prediction method applied to a switch cabinet, and the method comprises the steps: building a geometric model of an actual switch cabinet, and importing the built geometric model into finite element simulation software; boundary conditions and material attributes of the geometric model are added into simulation software; wherein the boundary conditions comprise a solid and fluid heat transfer field reflecting condensation in the switch cabinet, a laminar flow field and a moisture conveying field in air; an interpolation function of temperature, air pressure and humidity changing along with time for 24 hours is set in simulation software, simulation calculation is carried out, the influence of multiple factors on condensation in the cabinet is evaluated, and the interaction effect is analyzed; the method comprises the following steps: dividing a plurality of factors into a high level and a low level for a combined test, analyzing test data to determine the significance and interaction of the factors, establishing an estimation regression equation for the factors and condensation in the cabinet, and predicting the condensation in the cabinet. Compared with the prior art, the method has the advantages that the condensation in the cabinet can be visually and accurately predicted, and the like.

The present invention discloses a multi-scale photovoltaic cell defect detection method based on complex background, the method comprising: constructing a photovoltaic cell defect detection data set; designing and improving a YOLOv8 network model; inputting the constructed data set into the improved YOLOv8 model for training; ablation experiment to verify the improved model performance; performing comparative experiments on multiple models, comprehensively testing and evaluating model performance; and visualizing the model test results. The present invention adopts multi-scale sequence feature fusion technology, combines bidirectional information flow and learnable weights to enhance the feature expression ability of the network, avoids the loss of shallow semantic information, and thus significantly reduces the false detection and missed detection problems in photovoltaic cell defect detection caused by factors such as complex background interference, variable shapes and multi-scale defects, and can accurately detect photovoltaic cells in complex backgrounds.

The invention discloses a tensile bending and thermal stress combined test device and method, and belongs to the technical field of material testing, the device comprises a support frame, and the support frame is provided with a mechanical tensile device and a three-point bending device; the mechanical stretching device comprises a first sliding base, a second sliding base, a two-way threaded rod, a first clamping assembly and a second clamping assembly, and the middle of the first sliding base and the middle of the second sliding base are connected with the two-way threaded rod through threaded structures. The top ends of the first sliding base and the second sliding base are fixedly connected with a first clamping assembly and a second clamping assembly respectively, a sample is fixed between the first clamping assembly and the second clamping assembly, and the tensile force of the sample is detected by rotating a bidirectional threaded rod; the three-point bending device is arranged at the top of the supporting frame, and the bending force of the sample is detected through downward pressing of the three-point bending device. According to the invention, a stretching-bending-thermal stress combined aging test is carried out on a hot melt adhesive bonding sample under a set condition, and the performance of a hot melt adhesive layer under a long-term operation condition is tested.

The invention discloses a nonlinear aging acceleration test system and method for a perovskite solar cell, and the system comprises a data collection system and a nonlinear comprehensive test system. The data acquisition system is used for acquiring performance data of the perovskite solar cell and sending the performance data to the server, the data acquisition system is connected with the nonlinear comprehensive test system, and the nonlinear comprehensive test system simulates influences of different environments on cell aging and sends detection data to the server. The nonlinear comprehensive test system comprises a composite stress loading unit, an in-situ monitoring unit and an intelligent analysis unit. According to the invention, the problem of inaccurate prediction of the nonlinear aging behavior of the perovskite cell by a traditional test method is solved, the test period is shortened, the nonlinear comprehensive test system is adopted to simulate the light-humidity-heat synergistic effect of an actual outdoor environment, and the accuracy of aging test data is improved.

The invention discloses a comprehensive test system for coal crushing and dust production characteristics of a heading machine, which comprises a bracket, a cutting device connected above the bracket, a confining pressure loading device connected to the power output end of the cutting device, a uniaxial compression device connected to the outer side of the confining pressure loading device above the bracket, a vibrating screening device corresponding to the confining pressure loading device is arranged below the support, a placing plate is connected to the support and located below the cutting device, and a main control box and a dust collecting and analyzing device connected with the vibrating screening device are arranged on the placing plate; and the main control box is connected with and controls the cutting device, the confining pressure loading device, the single-shaft compression device, the vibration screening device and the dust collecting and analyzing device. The device can comprehensively simulate actual working conditions, not only can cut the coal body and quantitatively analyze the particle size of cut dust, but also can measure the compressive strength of the coal body, and provides a basis for dust prevention and control and tunneling process optimization in coal mining.

The invention relates to the field of building materials, in particular to a recycled lightweight aggregate concrete wallboard production process optimization method and system.The method comprises the steps that a building solid waste set and a carbonization box are obtained, crack scanning analysis is conducted on solid waste samples, a recycled concrete set is obtained, the recycled concrete set is crushed and cleaned, initial aggregate is obtained, n comprehensive test groups are obtained, and n is a positive integer; carrying out carbonization analysis on the aggregate sample based on the comprehensive test group and the carbonization box to obtain a sample carbonization value, taking the comprehensive test group corresponding to the maximum sample value as an optimal test group, carrying out carbonization treatment on the initial aggregate based on the optimal test group and the carbonization box, carrying out water absorption performance test on the recycled aggregate, and calculating the addition amount of the recycled aggregate. And obtaining a target concrete wallboard based on the recycled aggregate addition amount and the recycled aggregate, and completing production process optimization of the concrete wallboard. According to the invention, the automation degree of recycling the lightweight aggregate can be improved, and the product quality of the finally produced concrete wallboard is improved.

The invention relates to the technical field of electromagnetic environment simulation, in particular to a conducted disturbance and immunity comprehensive test system in a complex electromagnetic environment, which comprises a signal generation module, a holographic electromagnetic wave processing module, a conduction path simulation module, a monitoring and analysis module and a control and management module. Through AI dynamic optimization and a programmable metasurface technology, real-time regulation and control of phased array excitation weight and electromagnetic wave front are realized, through combination of digital twin pre-calculation and multi-physics field coupling modeling, spatial characteristics and interference propagation paths of a complex electromagnetic environment can be efficiently and accurately simulated, authenticity and reliability of testing are improved, and the method is suitable for large-scale popularization and application. A high-precision conduction path model can be constructed by utilizing a programmable impedance network and a modular configuration architecture in combination with a non-intrusive interference injection and data driving optimization technology, an electromagnetic conduction environment is vividly simulated, and a reliable environment basis is provided for testing.

The invention provides an aircraft management computer software verification environment system, and relates to the technical field of equipment testing. The system comprises VMC comprehensive test equipment, bus network node simulation equipment, bus data acquisition and analysis equipment and development and comprehensive test equipment, and an Ethernet, a reflective memory network and a bus network which are used in the system are constructed; wherein the Ethernet, the reflective memory network and the bus network are used in the system for data interaction and equipment control, and the operation of each test equipment is integrated and fixed through the verification environment cabinet, the verification environment finished product cabinet and the verification environment workbench, so that a worker does not need to sort the current environment architecture, and the test efficiency is improved. Therefore, the operation can be carried out at the position of the test equipment to be used in the corresponding functional area. According to the method, the requirement that multiple airborne finished products are subjected to aircraft management software verification at the same time is met, a standard fixed normal form of aircraft management software verification is achieved, and a system joint debugging and joint test verification environment of the airborne finished products is provided.

The invention discloses a verification method for a charging lithium precipitation current boundary of a lithium ion battery, and relates to the field of power batteries. According to the invention, the SOC of the lithium ion battery during lithium precipitation is measured through a button half-battery, stepped charging and a combined test method, and the temperature, the SOC and the current rate boundary of the lithium ion battery during lithium precipitation can be effectively tested, that is, after the state in which the lithium precipitation of the battery is easy to occur is accurately known, the SOC of the lithium ion battery can be accurately measured by adjusting the charging current, so that the lithium precipitation of the lithium ion battery can be accurately measured. The probability of lithium precipitation of the battery is reduced, and finally the phenomenon of battery combustion caused by short circuit of the battery due to lithium precipitation of the battery is reduced.

The invention relates to the technical field of software testing, and discloses an agent-based multi-dimensional test sample automatic generation method and system.The agent-based multi-dimensional test sample automatic generation method comprises the steps that code changes are captured, interface definitions are extracted, and multi-source data are fused for consistency verification; constructing a multi-dimensional dependency graph and analyzing the change influence to obtain an associated interface list; generating a multi-dimensional test scene; performing parameter traceability and consistency derivation, and initializing test data and environment to obtain a complete test data set; generating a use case code, and performing hierarchical optimization and executable verification; test arrangement optimization and automatic execution are carried out, and faults are monitored and diagnosed in real time; carrying out multi-dimensional analysis and defect identification, dynamically evaluating the value of a test case and optimizing a test strategy to obtain a comprehensive test report; according to the invention, full-process automation of test case generation is realized, the test efficiency and quality are improved, and the test maintenance cost is reduced.

The invention relates to the field of electrical measurement and electronic test equipment, and discloses a charger test method and system. The method comprises the following steps: acquiring a parameter configuration set and a baseline condition, and generating a probe and interface configuration structure under a four-wire system measurement site, protocol abstraction card mapping and shunting and Hall channel combination condition; performing unified time reference binding and event labeling table initialization, locking a time base by a real-time clock of the microcontroller unit, broadcasting the time base to a channel and a controller, executing temperature rise constrained load arrangement and synchronous acquisition, and generating an acquisition preparation packet; and electrical transient and thermal feature extraction and electrical decoupling fusion are executed, and consistency judgment, threshold comparison and report generation are completed. According to the invention, by establishing a unified time base architecture of electricity and heat dual-domain synchronization, multi-channel consistent acquisition and real-time self-diagnosis are realized, the precision, traceability and automation level of a charger test process are improved, and the method is suitable for comprehensive test and evaluation of various types of electronic equipment.

The invention relates to the technical field of electromagnetic actuator state monitoring, in particular to an electromagnetic valve operation process stability and clamping stagnation detection combined test method, which comprises the following steps of S1, synchronously acquiring a coil current signal, a valve core displacement signal and an outlet pressure pulsation signal; s2, converting the current signal acquired in the S1 into an equivalent electromagnetic force waveform, a speed-acceleration trajectory and a pressure gradient curve; s3, extracting an electromagnetic force zero-crossing distortion rate, an inertia abrupt change point of a speed-acceleration trajectory and an oscillation attenuation coefficient of a pressure gradient curve; s4, calculating a time offset, and generating a primary clamping stagnation early warning; s5, obtaining a stability degradation index; and S6, when primary clamping stagnation early warning is triggered and the stability degradation index exceeds a dynamic threshold value, outputting a conclusion of a clamping stagnation-instability coupling fault. According to the method, high-precision and real-time identification of the clamping stagnation and stability deterioration faults of the electromagnetic valve is realized by fusing the multi-dimensional signal features and a double-criterion judgment mechanism.