541 results about "Systematic testing" patented technology

The invention provides a full-link dynamic monitoring and anomaly simulation test system and method. The system comprises a cross-level I / O load simulation engine module, a multi-level collaborative fault injection module, a full-link dynamic monitoring module and an intelligent root cause analysis module. The cross-level I / O load simulation engine module is used for simulating business pressure fluctuation, the multi-level collaborative fault injection module is used for synchronously injecting configurable anomalies and realizing cross-level fault conduction, and the full-link dynamic monitoring module realizes request-level end-to-end tracking and acquires monitoring data through a distributed probe. And the intelligent root cause analysis module positions a fault root and generates a repair suggestion in combination with LSTM time sequence prediction and Bayesian causal reasoning. According to the invention, the overall performance and fault response capability of the system can be comprehensively evaluated, and the accuracy and efficiency of system testing are improved.

The invention belongs to the field of material testing, and discloses a method and a system for testing a hydrogen-induced cracking threshold value based on a notched round rod tensile sample, the testing method comprises the following steps: in a hydrogen environment and an inert gas environment, respectively carrying out a slow strain rate tensile test on the notched round rod tensile sample to obtain test data and two elongation rates; the hydrogen embrittlement sensitivity index of the material is obtained through the two elongation rates; acquiring elastic-plastic parameters by using the hydrogen embrittlement sensitivity index of the material and test data; when the elastic-plastic parameter is greater than 3.5, acquiring a hydrogen induced cracking threshold value by adopting an elastic-plastic crack propagation mechanism; and when the elastic-plastic parameter is not greater than 3.5, a hydrogen induced cracking threshold value is obtained by adopting a linear elastic crack propagation mechanism. The test method is short in period, high in efficiency and high in universality.

The invention relates to the technical field of aircraft power system testing, in particular to an aircraft power system automatic testing method, system and device and a storage medium, and the method comprises the steps: obtaining detection data correspondingly collected by a plurality of data collection terminals; analyzing and processing the detection data, and judging whether the detection data is in a normal range or not; if the detection data is within the normal range, analyzing the data change trend of the detection data under different test conditions according to preset program logic; and if the detection data or the data change trend is not in a normal range, triggering a safety monitoring mechanism and generating an abnormal record. The method has the effect of improving the testing efficiency of the aircraft power system.

The invention provides a test method and system of a vehicle AEB system, and belongs to the technical field of vehicle test. The method comprises the steps of generating a virtual test scene; collecting simulation video data in the virtual test scene; setting the scene recognition precision of the virtual vehicle, and simulating the message information of the virtual vehicle in the virtual test scene; simulation data including the simulation video data and the message information are sent to an AEB system of the tested vehicle, and a control signal, namely the braking deceleration, of the virtual vehicle is output; converting the brake deceleration into a brake pedal signal; inputting the brake pedal signal into a dynamical model of the test vehicle, and outputting motion information of the test vehicle; updating message information of the virtual vehicle in the virtual test scene according to the motion information; and comparing the updated message information with the standard message information in the braking state, and outputting a test result of the AEB system. The AEB system test accuracy is improved, the test period is shortened, and the test cost is reduced.

The invention discloses a multifunctional angle module test bench which is composed of a bench base, a load simulation device and a pavement simulation device. The bench base is provided with a lifting sliding column, and the height of a loading platform can be adjusted to adapt to suspension deformation; the load simulation device realizes vertical load adjustment by increasing or decreasing balancing weights; the pavement simulation device integrates a belt pulley shaft, a motor, a magnetic powder brake and a pressure oil cylinder, and simulates pavement resistance through belt rolling; during testing, the angle module body is fixed to a loading platform, tires make contact with a belt to achieve dynamic testing, a magnetic powder brake increases resistance torque for a main belt wheel shaft so as to simulate different road conditions, a motor drives the belt to test regenerative braking performance, and a pressure oil cylinder is matched with a thrust bearing to measure axial loads. The steering resistance and tire mechanical property test is completed by changing the included angle between the wheel and the belt motion direction; according to the invention, driving, braking, steering and suspension system testing functions are integrated, and multi-working-condition comprehensive performance detection is realized.

The invention relates to an airplane airborne BIT system testability verification method based on a correlation model, and the method comprises the steps: carrying out the testability modeling of an object system, and obtaining a dependency relation model which describes the relation between a fault mode of the object system and a test method of the object system; based on the dependency relationship model, obtaining a BIT theoretical fault report set of each fault mode under all test methods by utilizing reachability analysis, and deducing an optimal diagnosis fault fuzzy group; constructing a fault sample library, verifying the BIT theoretical fault report set by using samples in the library, and adjusting the dependency relationship model according to a verification result; and performing fault simulation based on the verified dependency matrix, and calculating a total fault detection rate and a fault isolation rate of the object system according to a generated fault report. According to the method, the isolation rate index of the fault can be effectively verified in the incomplete and unformed stage of the fault diagnosis strategy.

Various embodiments provide a robust backdoor attack on machine learning (ML)-based detection systems that can be applied to demonstrate and identify vulnerabilities thereof. In various embodiments, an artificial intelligence (AI)-based Trojan attack is generated and implanted inside a ML model trained for classification and / or detection tasks, and the AI-based Trojan attack can be triggered by specific inputs to manipulate the expected outputs of the ML model. Analysis of the behavior of an ML model having the AI-based Trojan implanted (and / or triggered) then enables identification of vulnerabilities of the ML model and further enables the design of ML models with improved security. Various embodiments of the present disclosure provide a fast and cost-effective solution in achieving 100% attack success rate that significantly outperforms adversarial attacks on ML models, thereby improving applicability and depth in testing ML-based detection systems.

Disclosed are systems and methods including software processes for developing test cases for testing robustness of AI-based image-recognition models-under-test (MUTs) with respect to types of image variation transformations. The system may generate various types of robustness metrics for the MUT and output user-readable reports about the MUT's performance. The system trains machine-learning architectures to generate test cases including augmented images according to the types of image transformations, applies the IR MUTs, and then evaluates the image feature vector embeddings and predicted classification produced by the IR MUTs to determine the accuracy of the MUT with respect to each type of transformation.

The invention particularly relates to an integrated simulation test system and method for a diesel engine speed regulation system, and belongs to the field of diesel engine speed regulation system testing. The system comprises a diesel engine analogue simulation module which is used for simulating and outputting the working mode of a diesel engine, responding to and entering an off-line test working mode or an on-line monitoring working mode, and providing off-line test working parameters or on-line monitoring working parameters for a diesel engine speed regulation system; and the diesel engine speed regulation system analog simulation test module is used for responding to enter an off-line test working mode or an on-line monitoring working mode and acquiring off-line test working state parameters or on-line monitoring working state parameters of the diesel engine speed regulation system in real time. According to the method, the simulation test of the diesel engine speed regulation system is carried out by using the device. The off-line test function verification of the diesel engine speed regulation system is realized, the function verification cost and risk of the diesel engine speed regulation system are reduced, the comprehensive test of the diesel engine speed regulation system is realized, and the usability and reliability of the functions of the diesel engine speed regulation system are improved.

The invention discloses a rock permeability testing system in a high-temperature and high-pressure environment and a using method thereof, and belongs to the technical field of geothermal development or coal in-situ gasification mining. The test system is composed of a stress loading system, a test kettle assembly and a magnetic particle imaging system. When in use, the stress loading system and the test kettle assembly provide conditions such as high temperature, high pressure, seepage fluid and the like for a test piece; and detecting the spatial distribution state of the nano magnetic induction particles added in the seepage fluid through a magnetic particle imaging system to observe the pore and crack distribution characteristics in the test piece or detecting the nano magnetic induction particles added in the pollutant solution to observe the pollutant migration condition. The test system is scientific in design, simple in structure and easy to operate and maintain, can monitor pore fracture distribution and pollutant migration conditions in the test piece in real time under high-temperature and high-pressure conditions, provides accurate dynamic observation data, and provides important technical support for reservoir assessment and optimization in a complex environment.

The invention relates to the technical field of semiconductor manufacturing, and discloses an integrated vacuum system test method of a mechanical arm and a vacuum test platform. A vacuum test platform which is provided with a two-stage vacuum system and a multi-channel proportional valve and is designed in a modular architecture mode is adopted for sequentially carrying out pre-installation calibration, vacuum environment simulation, positioning precision testing, vacuum adaptability testing and durability testing. The vacuum test platform is provided with a fine tuning clamping groove which is matched with the altimeter to ensure that the mounting position of the mechanical arm to be tested is accurate and the actual condition of the photoetching machine is reetched; a plurality of general standardized interfaces are also arranged, so that quick switching of to-be-tested mechanical arms of different models is realized; in the analysis stage, the three test results are analyzed, whether the performance of the mechanical arm to be tested reaches the standard or not is evaluated, the capability of integrally testing indexes such as positioning precision, vacuum adaptability and durability is achieved, external pre-debugging of the mechanical arm under the working environment of the simulated photoetching machine is achieved, and the debugging efficiency and precision are improved.

The invention discloses a bank system test case generation method. The method comprises the following steps: constructing a test case training data set; training a large language model according to the training data set; constructing an Agent test agent based on the large language model; injecting test case information into a knowledge base of an RAG recall tool of the Agent test agent; analyzing a business demand document, and extracting text content as an input part of the Agent test agent; the Agent test agent disassembles test case construction rule elements to form a generation process; the Agent test agent generates elements of the test case by calling a knowledge base of an RAG recall tool, and stores the elements; and S8, combining the elements generated by the Agent test agents according to the process to obtain a final test case. The test case with high specialty and accuracy can be generated, and the effectiveness and comprehensiveness of the test are improved.

The invention provides automobile suspension damping system test equipment, and relates to the technical field of automobile detection equipment, the automobile suspension damping system test equipment comprises a detection mechanism, the detection mechanism comprises a detection chassis, the top of the detection chassis is fixedly provided with a detection cover plate, the top of the detection cover plate is fixedly provided with a support connecting rod, and an annular detection plate is longitudinally and rotatably installed in the detection chassis. A plurality of arc-shaped obstacle plates are hinged to the top of the annular detection plate, a plurality of arc-shaped adjusting plates are installed at the bottom of the annular detection plate in an arc-shaped sliding mode, supporting connecting rods are hinged to the tops of the arc-shaped adjusting plates, and the other ends of the supporting connecting rods are hinged to the bottoms of the arc-shaped obstacle plates. The detection result is more accordant with the actual situation; the adjusting mechanism can adjust and support the angle of the shock absorber during detection, so that the working states of the detector in different road conditions can be simulated conveniently.

The invention relates to the technical field of material performance testing, in particular to a neat paste flow testing method and system based on multi-mode dynamic imaging. The test method comprises the following steps: collecting a continuous infrared image sequence of a neat paste free flowing process; synchronously triggering visible light supplement in a flowing initial stage, and obtaining at least one frame of visible light image; performing registration fusion on the visible light image and the infrared image at the corresponding moment to generate an enhanced image frame; extracting a neat paste contour in real time based on the enhanced image frame, and calculating dynamic parameters; according to the change trend of the dynamic parameters, the flowing stability opportunity is adaptively judged; and triggering final contour extraction at a stable opportunity, and calculating static morphological parameters and dynamic process parameters. Through the multi-modal dynamic imaging and intelligent image fusion technology, complex edge contours are accurately extracted, impurity interference is eliminated, and the measurement precision is improved.

The utility model discloses a test system. The testing system comprises a testing device and a plurality of conveying devices, the testing device comprises a supporting platform and a testing assembly, and the supporting platform is provided with a through hole extending in the first direction. The conveying device comprises a first moving assembly and a bearing part, the bearing part is used for bearing chips, the first moving assembly is connected with the bearing part, the first moving assembly can drive the bearing part to move in the first direction and the second direction, and the second direction is perpendicular to the first direction. The chip is fed to the bearing part, the bearing part moves to correspond to the through hole in the second direction and enters the through hole in the first direction to reach the test station, and then the bearing part can be matched with the test device to test the chip. After the test is completed, the bearing piece leaves the through hole in the first direction, and the test device does not need to avoid for feeding and discharging. And the bearing pieces of the plurality of conveying devices can alternately enter the through holes for chip detection, so that the testing process is compact, and the testing efficiency is improved.

The invention discloses a deep sea preset separable laying device simulation platform. The simulation platform mainly comprises a simulation mechanical calculation module, a three-dimensional display module, a marine environment module and an external task control module. The three-dimensional display module is responsible for creating an underwater equipment simulation model and a virtual deep sea scene model, the simulation mechanical calculation module receives an external control instruction, analyzes the instruction and substitutes the instruction into a corresponding dynamic model for calculation, and after the external task control module is started, configuration parameters are manually set, so that the underwater equipment simulation model and the virtual deep sea scene model are simulated. The control unit reads the task parameters and then generates a control instruction, and instruction information is sent to the simulation mechanical calculation module. Meanwhile, the invention further discloses a specific operation method of the simulation platform. The method has the advantages of high simulation precision, customization and multi-scene rapid migration, and provides guarantee for system testing of underwater full-process task maneuverability, safety and reliability of the deep sea device.

The invention provides a driving unit steering performance test method and device, a medium and equipment, and the method comprises the steps: building a whole vehicle simulation model based on a set verification working condition and whole vehicle information; generating a simulation result based on the whole vehicle simulation model and the verification working condition; based on the simulation result, calculating to obtain a load time domain curve on each wheel; inputting the load time domain curve into a steering performance test bench system carrying a driving unit to obtain an actual measurement result of the steering performance test bench system under the verification working condition; calculating an error rate between the simulation result and the actual measurement result; if the error rate is smaller than a preset error rate threshold value, the steering performance test bench system is adopted to test the driving unit under the test working condition, and an evaluation index is obtained; based on the evaluation index, the steering performance of the driving unit is determined, so that the steering performance of the driving unit can be accurately tested, and the consistency of test results can be ensured.

An over-the-air (OTA) test system is described. The OTA test system includes an antenna positioner with at least one test antenna. The OTA test system further including a DUT positioner, wherein the DUT positioner is configured to hold a device under test in a measurement zone. The antenna positioner is configured to rotate the at least one test antenna around the measurement zone by adapting an elevation angle of the test antenna. The DUT positioner is configured to tilt the device under test by a predefined angle with respect to a height direction of the OTA test system, thereby adapting an elevation angle of the device under test. Further, an OTA test method is described.

The invention discloses a power supply test method and system, a test fixture and a storage medium, and relates to the technical field of testing, and the method comprises the steps: responding to a received test instruction, generating a test control signal corresponding to the test instruction through a main controller, generating a load simulation signal according to the test power and the input voltage of the test fixture, and transmitting the load simulation signal to a test module; and in response to the load analog signal, adjusting the load of the power controller through a load analog module according to the load analog signal and a feedback signal of the load of the power controller so as to update the feedback signal until the voltage difference between the voltage value indicated by the load analog signal and the voltage value indicated by the feedback signal is within a specified voltage difference range, the problem of low accuracy of the test result of the power supply test in the prior art is solved, and the accuracy and reliability of the power supply test are improved.

The invention provides a garbage collection testing method and device, electronic equipment and a storage medium, and the method comprises the steps that a garbage collection triggering instruction from an external testing tool is received, and the garbage collection triggering instruction comprises a target identifier of to-be-collected data; in response to the garbage collection triggering instruction, starting garbage data collection operation on a data space corresponding to the target identifier; and after garbage collection is completed, a garbage collection completion signal is returned to the external test tool. By introducing a garbage collection mechanism actively triggered by an external test tool, the problems of uncontrollable test opportunity, limited scene coverage and the like caused by the fact that a traditional storage system GC test depends on internal condition triggering are effectively solved, a tester is allowed to accurately specify a target data space and trigger collection according to needs, and the test efficiency is improved. Redundant time consumption of automatic GC of a passive waiting system in a traditional method is avoided.

The invention provides a satellite-borne router network access test system and a test method thereof. The satellite-borne router network access test system comprises a constellation network node simulation platform, a performance test evaluation platform, an interface protocol conversion device, a constellation service traffic simulator and a network router digital model. Through joint simulation of the virtual nodes and the physical nodes, a simulation test platform can be provided for design and optimization of the satellite-borne router through scene simulation of a complex satellite network environment in a design stage, and the development efficiency is improved; on the other hand, in the product development and system test stage, the full-constellation operation scene can be simulated, the function and the performance of the satellite-borne router can be assessed and verified in the full-constellation scene in the ground environment, the method is particularly suitable for the low-orbit large-scale batch emission large-scale networking scene, the test coverage and the test effectiveness of the product are greatly improved, and the test cost is reduced. Development risks of insufficient verification, delayed verification time and the like before launching are effectively released, and meanwhile, the test verification cost is reduced.

The invention discloses a motor controller testing system and method, and relates to the field of electric vehicle high-voltage system testing, a first energy conversion unit is connected with a mains supply, the output end of a direct current bus is connected with the input end of a battery simulation unit and the output end of a motor simulation unit, and the output end of the battery simulation unit is connected with the input end of a tested motor controller; the input end of the motor simulation unit is connected with the output end of the tested motor controller, and the output signal line of the motor simulation unit is connected with the tested motor controller. The tested motor controller takes electric energy from a direct current side according to a preset value and outputs three-phase current to the motor simulation unit, the motor simulation unit simulates information such as torque, rotating speed and temperature according to the magnitude of the three-phase current and feeds back the information to the tested motor controller, and the tested motor controller performs closed-loop adjustment according to a feedback value and the preset value. And the three-phase output current is dynamically adjusted. The motor controller test system provided by the invention is simple in platform, simple to control and high in test precision.

The invention discloses a test system and method for an optical engine module, an evaluation board, a storage medium and a product, and relates to the technical field of communication, and the system comprises the steps: carrying out the active test and passive test of a to-be-tested transmission link which is disposed between a switching assembly and a first connector and is adjustable in electrical interconnection parameter, covering an electrical-optical full link, and carrying out the passive test of the to-be-tested transmission link; active testing is carried out on a to-be-tested transmission link under current electrical interconnection parameters through the switching component to locate a performance critical value, passive performance parameters of a target to-be-tested transmission link under a critical state are measured through the testing component, a critical failure state is accurately associated with physical layer defects, design allowance is conveniently deduced in a reverse mode, and the performance of the to-be-tested transmission link is accurately determined. The interconnection design parameters of the optical engine module are determined based on the parameters, compatibility is improved, the problems of fuzzy performance boundary, unknown design margin and compatibility risk caused by lack of systematic testing in related technologies are solved, and the beneficial effect of providing quantifiable design basis for PCIe optical interconnection channels is achieved.

An entrance system (1) comprising a swing door member (10) having a door leaf (12), and an automatic door operator (30) is provided. The automatic door operator (30) has a motor (34) capable of causing movement of the door member (10), a controller (31) for controlling operation of the motor (34), and the automatic door operator (30) being operable in a testing mode (60) and an operational mode, wherein the controller (31) is configured, in the testing mode (60), to automatically determine at least one test parameter; and causing an action in response to the determined test parameter.

The invention discloses a high-precision and high-reliability harmonic reducer system testing method, and belongs to the technical field of mechanical fault diagnosis. The method comprises the following steps: constructing an auxiliary classifier Wasserstein generative adversarial network model based on gradient penalty and spectrum normalization, and generating a minority class of fault samples by using an unbalanced training set; preprocessing the vibration signals to form an initial training set; the effectiveness of the generated sample is evaluated through the Pearson's correlation coefficient and the cosine similarity; adding the sample into the original set and adjusting the equilibrium ratio to 1: 1; and a one-dimensional convolutional neural network is adopted for classification. The ACWGAN-SG integrates a Wasserstein distance, gradient penalty and spectrum normalization, a generator comprises four stages of deconvolution layers, and a discriminator is of a double-branch structure. Experiments are verified in a CWRU data set and a harmonic reducer test bed, and results show that the method can achieve stable convergence, the similarity between a generated sample and an original sample is high, the diagnosis accuracy after balance is remarkably superior to those of methods such as DCGAN and ACGAN, the problem of data imbalance is effectively solved, and the fault diagnosis precision and reliability are improved.

The invention relates to the technical field of intelligent unmanned system testing and credibility evaluation, in particular to an unmanned system robustness evaluation method and system based on a multi-dimensional weight genetic algorithm, and behavior modeling of an unmanned system based on a multi-agent deep reinforcement learning framework is a multi-agent Markov decision process; constructing a lunar surface dynamic multi-domain interference scene; initializing a multi-dimensional evaluation index, including performing feature splicing on unmanned system sensor data, calculating a dimension weight by using an anisotropic RBF kernel, and defining a multi-dimensional robustness loss of a target function; generating an adversarial sample through genetic optimization; virtual-real fusion credibility evaluation is carried out on the unmanned system in the simulation environment and the real environment; and judging whether to terminate iteration according to the convergence condition of the multi-dimensional index, and terminating the iteration when the multi-dimensional index meets the convergence condition. According to the method, the intelligent control vulnerability of the unmanned system in a complex dynamic environment can be effectively identified, and the credibility and the anti-interference capability of the unmanned system in an extreme task are improved.

The invention provides an interval occupancy logic check system modeling method based on formalized verification, which comprises the following steps: classifying signal equipment according to attributes and behavior characteristics of the signal equipment in an interval occupancy logic check system; according to the classification of the signal equipment, defining object attributes of the signal equipment, and establishing an object model of the interval occupation logic checking system; and establishing a security demand verification model based on the object model according to the rule demand of the interval occupancy logic check system. According to the method, formalized modeling is carried out on the interval occupancy logic checking system, the natural language requirement is abstracted into a mathematical model, formalized verification can be conveniently carried out on the interval occupancy logic checking system, and the test comprehensiveness of the interval occupancy logic checking system is guaranteed.

The invention discloses an inflatable expansion test platform for a protective lifesaving air bag, which is used for measuring the inflation pressure, flow and surface stress of the air bag, shooting the form change of the air bag and the like. The test bench is mainly composed of an inflation system, a control system, a data acquisition system, a test system and a safety device. Wherein the inflation system is an independent air source device, and the control system and the inflatable expansion test platform of the protective lifesaving airbag can realize the inflation and deflation processes of the airbag under different inlet pressures and flows, and can measure and store related test data in the inflation and deflation processes of the airbag in real time; the parameters include air bag air inlet pressure, air bag air inlet flow, air bag air inlet temperature, air bag internal pressure, air bag internal temperature, air bag inflation time, appearance change and the like. Through test measurement and result analysis, the mechanical characteristics of airbags of different configurations and different materials in the inflation and unfolding process can be deeply researched, and meanwhile, test support is provided for establishing a real and effective airbag inflation mathematical model.

The invention relates to the technical field of high-voltage cable and accessory insulating materials, and particularly discloses a cable double-layer composite insulating medium polarization-depolarization current testing device and method.The testing device comprises a direct-current high-voltage power source, a testing electrode system, a pressure adjusting system, a temperature control system and a current information collecting system; the test electrode system is used for loading direct-current voltage to the sample; the pressure adjusting system is used for adjusting the pressure applied to the sample by the test electrode system; the temperature control system is used for adjusting the temperature of the test electrode system during testing; and the current information acquisition system is connected to a circuit between the test electrode system and the direct-current high-voltage power supply and is used for acquiring current information in the circuit. According to the invention, the pressure and temperature control of the test electrode system can be realized, and the problem that the complex structure and actual operation conditions of the composite insulating medium are not considered in the existing test device is solved.

The invention discloses a test station model generation method and device based on adapter constraint, equipment and a medium, and belongs to the technical field of automatic testing, and the method comprises the following steps: a, respectively establishing a UUT electrical interface model, an adapter model and a resource board card model; b, screening adapters meeting requirements according to the signal type and the channel number in the UUT electrical interface model; step c, configuring a resource board card meeting the test requirement for the test station through three processes of resource card type matching, channel number matching and performance index matching according to a back panel constraint condition of the selected adapter; and step d, finally obtaining configuration information of the test station and determining a required adapter to complete modeling of the test station. Aiming at the problem that the manual design efficiency of a test station of a general test system is low, the model selection of the adapter and the generation of the test station model are realized based on the constraint conditions of the front panel and the rear panel of the adapter, and the development efficiency of the test system is improved.