1208results about How to "Improve test accuracy" patented technology

The invention discloses an intelligent software testing method and system based on automatic script generation, and relates to the technical field of software testing, and the method comprises the following steps: deploying a distributed data acquisition probe, dynamically adjusting sampling frequency, collecting software operation data, and extracting data features based on a deep learning model; based on the data features, establishing a behavior pattern classification system, and mapping behavior patterns to realize hierarchical behavior classification; the method comprises the steps of constructing a test scene, generating test data, executing a test task, monitoring a test execution state in real time, calculating a test efficiency index, evaluating and feeding back a test effect, and dynamically adjusting a feature extraction strategy. According to the method, deep learning and reinforcement learning technologies are utilized, accurate recognition and classification of software behavior modes are achieved, and comprehensiveness and effectiveness of testing are guaranteed through multi-dimensional coverage rate analysis and a closed-loop optimization mechanism; and meanwhile, the automation level and the intelligent degree of software testing are remarkably improved, and a powerful guarantee is provided for improving the software quality.

The invention discloses a method for testing the dynamic response characteristic of a power supply by simulating the load change of the power supply, and relates to the technical field of power supply testing, and the method comprises the steps: generating a simulation load change sequence based on a preset load change mode, and enabling each load value to correspond to a specific time point; inputting the simulated load change sequence into the power supply to be tested, and controlling the power supply to be tested to work according to the simulated load change sequence by using the multi-channel synchronous test system so as to simulate the load change in the actual use process; a high-precision data acquisition module is used for acquiring and recording output voltage values, output current values and corresponding timestamps of the to-be-tested power supply under different load conditions at a sampling rate not lower than a first set value, and a dynamic response data set is formed; and processing the dynamic response data set by using a preset data calibration algorithm, and calculating dynamic response parameters of the to-be-tested power supply at each load change point. The motor power supply testing device has the effect of improving motor power supply testing precision.

The invention relates to the technical field of audio testing, and discloses an intelligent audio testing system frequency response analysis method, device and equipment, and the method comprises the steps: carrying out the audio parameter initialization of an intelligent audio testing system, and obtaining a testing parameter matrix and an excitation signal; performing dual-channel acquisition and time-frequency feature extraction to obtain a time-frequency feature data set; executing double-branch processing of time domain noise reduction and frequency domain enhancement to obtain a purified feature data set and a feature weighting matrix; performing segmented recursive calculation and feature aggregation to obtain a frequency response feature vector; decomposing the frequency response feature vector according to a test frequency band, and performing environment compensation and nonlinear calibration to obtain a standard frequency response data set; and inputting the standard frequency response data set into the deep neural network for feature recognition and mode classification to obtain a frequency response curve and a phase characteristic curve, thereby improving the test precision, the anti-interference capability, the automation degree and the adaptability of the intelligent audio test system.

The invention discloses an automatic test method based on natural language processing, which comprises the following steps: S1, generating a test case: performing semantic analysis on a software requirement document or a test requirement by utilizing a natural language processing technology, extracting key information, and combining the extracted test information and a preset test case template to generate a test case; a preliminary test case is automatically generated; the key information comprises a test purpose, an operation step and an expected result; s2, analyzing the test case; s3, generating a test script; s4, executing the test script; and S5, analyzing a test result. According to the automatic test method based on natural language processing, the test requirements described by the natural language can be automatically analyzed, the test case is generated, the test is automatically executed, and the test report is finally generated, so that the software test efficiency is improved, the workload of manually compiling and executing the test case is reduced, and the test efficiency is improved. And the coverage rate and the accuracy of the test are improved, more software defects can be found, and the quality of software products is guaranteed.

The invention discloses a trigger test device with a calibration function and a test method. The test device comprises a bottom plate; the device comprises a mounting module, a detection assembly and an adjusting assembly, the detection assembly comprises a probe and a pressure sensor matrix, the pressure sensor matrix is arranged on the probe and covers a detection part of the probe, and the pressure sensor matrix is used for detecting the offset and the pressure value between the detection part and a to-be-detected area; the probe is driven by the adjusting assembly to carry out displacement and angle adjustment on the X axis, the Y axis and the Z axis, the offset between the detection part and the to-be-measured area is corrected, and the measurement precision is improved.

The invention relates to a non-signaling test-based frequency offset calibration method, system and device and a medium, and the method comprises the steps: carrying out the parallel non-signaling frequency offset test of a plurality of target chips, collecting the output waveforms of the target chips, and determining the frequency offset values of the target chips according to the output waveforms; performing deviation analysis on the frequency deviation value, and calculating a corresponding frequency deviation calibration value based on the frequency deviation value and a preset frequency calibration coefficient under the condition that the frequency deviation value reaches a preset frequency limit range; writing the frequency offset calibration value into a corresponding target chip, and performing parallel frequency offset calibration; and carrying out calibration degree verification on the target chip after frequency offset calibration so as to confirm whether the frequency offset value of the target chip accords with a preset standard frequency. The method and the device have the effect of improving the frequency offset calibration efficiency of the chip.

The invention discloses a large indoor direct shear tester for geotechnical engineering, and relates to the technical field of geotechnical shear tests.The large indoor direct shear tester for geotechnical engineering comprises a sample container system, a shear loading system, a data acquisition control system and a base protection system.The sample container system is formed by splicing a plurality of modular sample containers; the modularized sample container is connected through a detachable connecting fastener, a replaceable lining plate is arranged in the container and is used for adjusting the size and interface conditions of the sample container, and an embedded porous pressure plate is arranged at the bottom of the container and is used for measuring the pore pressure change in the sample seepage process. By installing the base, the protection system and the normal loading system, the function of uniformly applying normal force in the shearing process is achieved, the problem that the test result is affected by eccentric errors in the shearing process is solved, and the precision and stability of the shearing test are improved.

The invention discloses a semiconductor probe card electrical parameter extraction method and system based on an MEMS technology, and relates to the technical field of semiconductor testing, the method comprises the following components: initialization setting: aligning an MEMS probe card to a target test area on a wafer to be tested, firmly fixing the probe card and the wafer together by using a mechanical clamping device, and setting the MEMS probe card and the wafer to be tested; by integrating the decision tree model and the genetic algorithm, accurate mapping and optimization of semiconductor wafer surface features and optimal probe contact parameters are achieved, the intelligent level of testing is improved, the test time is shortened, the test efficiency is improved, and the test cost is reduced. The self-adaptability and stability of the testing process are remarkably enhanced, real-time adjustment of probe contact parameters is ensured through a dynamic monitoring and closed-loop control mechanism, the testing error is effectively reduced, the testing precision is improved, the optimal contact parameter combination is found through an optimization algorithm, the testing period is further shortened, and the testing efficiency is improved.

The invention discloses a simulation test device and method of a battery management system and a readable storage medium, and belongs to the technical field of vehicle test equipment.The simulation test device of the battery management system comprises an upper computer system and a simulation platform, the simulation test device of the battery management system generates a test signal through the upper computer system, and the test signal is transmitted to the simulation platform through the simulation platform; a test signal is sent to the simulation platform, the simulation platform operates a simulation work model through the vehicle simulation module according to the test signal and generates model data, and the board card module generates a working condition simulation signal according to the model data and then sends the working condition simulation signal to the battery management system; the battery management system can generate test data according to the working condition simulation signal, and the upper computer system generates a test report according to the test data, so that whether the thermal runaway function operates normally or not is judged conveniently, the thermal runaway function does not need to be tested by a real vehicle, automatic test is realized, and test accuracy and test efficiency are effectively improved.

The invention provides an automatic testing method and system for full-performance electromagnetic compatibility immunity, relates to the technical field of electronic equipment testing, and aims to accurately simulate electromagnetic interference signals and propagation characteristics thereof through real-time monitoring and data preprocessing in combination with a dynamic modulation function and a recursive coupling model, so that the testing precision and reliability are improved. By introducing a global feedback mechanism and disturbance integration, the immunity evaluation is dynamically optimized, the stable response of the tested equipment under various interferences is ensured, and the comprehensiveness of the evaluation is enhanced. Besides, a self-adaptive dynamic response model is further designed, the test system can dynamically adapt to response changes of equipment through self-adaptive adjustment of test parameters, the test efficiency is improved, errors are reduced, and the advantages of high efficiency and accuracy are shown in an electromagnetic compatibility test.

A compressed air energy storage underground cavern model test system designed according to a preset joint disclosed by the present invention comprises a simulation cavern, a loading system, a measurement system and a protection device, the measurement system comprises a plurality of temperature sensors, a plurality of pressure sensors, a plurality of crack meters and a plurality of optical fiber gas sensors, and the simulation cavern comprises a steel cylinder sealed by a sealing door. A deformation simulation layer, a lining layer, a leveling layer, a geotechnical cloth layer and a flexible sealing layer are arranged on the inner wall of the steel cylinder, a plurality of longitudinal exhaust pipelines are embedded in the joint of the deformation simulation layer and the lining layer, a plurality of exhaust pipes are inserted into the cylinder wall of the steel cylinder, each exhaust pipe is communicated with one longitudinal exhaust pipeline, a plurality of longitudinal prefabricated cracks are distributed in the lining layer, and the longitudinal prefabricated cracks are communicated with the geotechnical cloth layer. A crack meter is embedded in the middle of each longitudinal prefabricated crack, and the simulation cavern is communicated with the loading system through an air inlet in the sealing door. The test system is low in cost, convenient to operate, large in scale, comprehensive in test item, high in test precision and high in reference value for actual engineering.

The invention provides a horizontal sliding bearing test bed, which belongs to the field of sliding bearing safety operation and detection and comprises a main transmission system, a driving system, a radial loading system, a heating system and a hydraulic system. A sliding bearing seat in the radial loading system is inversely fixed on a lower loading plate and is detachably sleeved and fixed on a test bearing, and a test bed applies pressure to the lower loading plate through a hydraulic cylinder to apply radial load to a test sliding bearing. A rotary swing hydraulic oil cylinder in the main transmission system provides power to test the horizontal sliding bearing. The hydraulic system is connected with the rotary swing hydraulic oil cylinder and the radial loading oil cylinder and can achieve closed-loop control over torque and radial loading force. The heating system simulates a high-temperature working condition through a heating box, and a test bearing can be set to be tested at a specific high temperature. According to the invention, large load detection can be realized, working condition simulation is accurate, data such as bearing working torque and service life can be detected, and comprehensive and multi-size adaptability is realized.

The invention belongs to the technical field of PCB detection equipment, particularly relates to a flying probe test probe deviation compensation method, device and equipment and a medium, and provides a method for directly calculating and compensating deviation through a flying probe machine camera system. According to the method, the center of the driving end of the probe serves as a reference point, the probe is controlled to move in the preset direction till the visual center position coincides with the preset position of a target plate, related coordinates and distance values are obtained through a camera system, the motion compensation value of the probe to be compensated is calculated and determined, and finally the driving end is controlled to move to complete deviation compensation. According to the invention, external tools are not needed, rapid and accurate needle point deviation compensation is realized, and the test efficiency and precision of the flying probe machine are improved.

The invention discloses lithium battery safety performance detection equipment, and relates to the technical field of detection equipment. A fixing mechanism is arranged above the rotating plate, a vibrating mechanism is arranged between the fixing mechanism and the rotating plate, a supporting frame is fixedly connected to the upper end of the workbench, a sealing cover is arranged on the inner side of the supporting frame, an impacting mechanism is arranged on the rear side of the sealing cover, and an air blower, a heater and a refrigerating mechanism are arranged below the workbench. The equipment integrates a plurality of testing functions such as rotation, vibration, falling and impact, can comprehensively evaluate the safety performance of the lithium battery under various extreme conditions, and improves the testing efficiency and accuracy; in the fixing mechanism, clamping plates on the two sides are matched to clamp and fix the lithium battery, and the distance between the two clamping plates is adjustable, so that different types of batteries can be tested conveniently. And by adopting the design of the sealing cover, the fixing mechanism and the like, the stability and the safety of the lithium battery in the testing process are ensured, and the pollution and the damage to the surrounding environment in the testing process are prevented at the same time.

The invention relates to the technical field of FFC wire rod conductivity testing, in particular to testing equipment and a testing method for FFC wire rod processing. Comprising a base and supporting legs on the lower surface of the base. The upper surface of the base is fixedly connected with a vertical plate; one side of the vertical plate is fixedly connected with a controller; an upper driving roller and an upper driven roller are rotationally connected to the side, away from the controller, of the vertical plate at the same horizontal height. The upper driving roller is driven by an upper motor; the outer walls of the upper driving roller and the upper driven roller are in transmission connection with an upper conveying belt; a lower driving roller and a lower driven roller are rotationally connected to the side, deviating from the controller, of the vertical plate at the same horizontal height; according to the FFC wire testing device, FFC wires are continuously placed through the storage grooves in the lower conveying belt, and the testing device can continuously test the FFC wires through transmission of the upper conveying belt and the lower conveying belt, so that the testing is more continuous, and the testing efficiency of the existing processed FFC wires is improved.

The invention discloses a direct visual field testing device, which relates to the technical field of testing and comprises a video auxiliary device and a marker device, the video auxiliary device realizes three-dimensional positioning and real-time video acquisition of preset eye spots through a height adjusting mechanism, an angle adjusting mechanism and a holder adjusting mechanism; the marker device realizes accurate adjustment and stable positioning of a marker in a test area through a height adjusting rod, a knuckle bearing and laser-assisted positioning; the direct visual field testing device is suitable for accurate measurement of the visual field range of a driver, can efficiently collect and record testing data, has the advantages of being convenient to operate, high in adaptability, high in precision and the like, and is widely applied to the fields of vehicle design, driving training, safety research and the like.

The invention discloses an embedded software testing method and device, equipment and a medium, and relates to the technical field of computers, the embedded software testing method and device are applied to a Jenkins server, a plurality of testing nodes are mounted on the Jenkins server, each testing node comprises a to-be-tested piece and auxiliary testing equipment, and the method comprises the steps that task parameters of a testing task are extracted, screening out at least one target test node based on the task parameters and hardware environment parameters of the plurality of test nodes; the test task is issued to a target test node, so that the target test node configures a software environment and pulls a test case, and a test script of the test case is loaded to the software environment based on a CANoe target interface so as to perform a test; and uploading a test result to a project management server. According to the invention, full-process automation of test preparation, test execution and test feedback is realized, and the test accuracy, consistency and integrity are improved.

The invention discloses a full-automatic intelligent multifunctional high-order nonlinear fluorescence dynamics testing method and device, and relates to the field of nonlinear optics and nano photonics. An optical testing device composed of an exciting light generation module, an automatic power regulation module, an exciting light modulation module, a sample scanning module, a data acquisition and analysis module and an intelligent control module is established, and under the excitation of incident laser, based on the overall coordination of the intelligent control module, the optical testing device is established. Other modules are driven to complete the dynamic response test of a nonlinear fluorescence sample, and full-automatic intelligent, multifunctional, high-precision, simple, efficient, low-cost and universal fluorescence dynamic test analysis is realized. The problems that traditional manual operation wastes time and labor and the testing precision is low are solved. In addition, the multifunctional integration of the fluorescence response curve, the fluorescence rise time, the fluorescence lifetime and the fluorescence imaging effectively improves the test efficiency and the application scene, and greatly reduces the system cost.

The invention relates to a test case execution method and device, equipment and a medium. The method comprises the steps that multiple test cases are analyzed, a mapping file, a variable name and an expression of each test case are obtained, and the mapping files are used for representing the mapping relation between the variable names and the expressions; according to the mapping file, the variable name and the expression of each test case, generating a test code of each test step in each test case; packaging the test codes of the test steps of the same type, and obtaining a code module corresponding to each test step type; and according to a preset execution sequence, calling the code module corresponding to the test step type to which each test step belongs in sequence to obtain test results of the plurality of test cases. According to the technical scheme, the execution efficiency and accuracy of the test case are improved.

The invention discloses a fracturing simulation permeability experiment device, and relates to the technical field of fracturing simulation. The device comprises a base, the top of the base is fixedly connected with a test box, the top of the test box is provided with a test bin, the top of the test box is covered with a cover plate, one side of the test bin is symmetrically provided with a pair of separation openings, separation plates are inserted into the separation openings, and one end of the cover plate and one end of each separation plate are provided with insertion openings; a shaping rod, an air guide pipe and a tracing pipe are installed at one end of the base. The multiple partition plates penetrate through the partition openings to be inserted into the test bin, the soil filled in the test bin is divided into the upper layer, the middle layer and the lower layer, and the gas guide pipes are matched with the pressure pump to input pressurized gas into the soil of the upper layer, the middle layer and the lower layer, so that cracks are generated in the soil; then, a tracing pipe is matched with a tracing gas pump to input tracing gas into cracks in the soil, and a gas chromatograph is matched to track the distribution and flowing path of the tracing gas in the soil.

The invention discloses a battery internal temperature testing method and device and a medium. The battery internal temperature testing method comprises the following steps: acquiring the current AC internal resistance of a target battery; based on a preset association relationship, determining a battery internal temperature associated with the current AC internal resistance, the preset association relationship representing an association relationship between a plurality of preset AC internal resistances and a plurality of preset battery internal temperatures; and taking the battery internal temperature associated with the current AC internal resistance as the current battery internal temperature of the target battery. According to the association relationship between the AC internal resistance and the battery internal temperature, the battery internal temperature associated with the current AC internal resistance of the target battery is determined and serves as the current battery internal temperature of the target battery, so that the testing cost of the battery internal temperature is reduced, and the testing accuracy of the battery internal temperature is improved.

The invention relates to a detection device capable of correcting hematocrit and a measurement method thereof. The detection device comprises a dry chemical test paper clamping shell upper cover, hematocrit detection test paper, dry chemical test paper and a dry chemical test paper clamping shell lower cover, the hematocrit detection test paper comprises a double faced adhesive tape, a hydrophilic film, a double faced adhesive tape, a hematocrit detection electrode and a double faced adhesive tape from top to bottom; the dry chemical test paper clamping shell upper cover comprises a sample adding hole; and the lower cover of the dry chemical test paper clamping shell comprises a detection hole. According to the invention, the test paper for detecting the hematocrit by the impedance method is adhered to the upper cover of the card shell of the dry chemical test paper and is attached to the dry chemical test paper, so that the dry chemical test paper detection and the hematocrit detection can be realized, and the dry chemical test paper detection result is corrected according to the hematocrit detection result. And a specific detection and correction method is adopted, so that the influence of hematocrit on a detection result is reduced to the greatest extent.

The invention relates to a microcomputer system performance test and evaluation method, device and equipment and a medium, and the microcomputer system performance test and evaluation method comprises the steps: if it is detected that a key event of a microcomputer system has occurred, executing a corresponding test cycle operation according to the key event; and converting and generating uniformly formatted real-time log data based on each test result in the test cycle operation, clustering and matching the real-time log data to a predefined abnormal state, and matching corresponding adjustment parameters based on the abnormal state to obtain the power state of the microcomputer system. Executing a first dynamic adjustment operation of the power state based on the performance adjustment parameter; according to the method, standardized real-time log data is generated from each test result, and the log data can be intelligently clustered and matched to a predefined abnormal state, so that the abnormity can be quickly identified, the adjustment parameters are generated, the power state and the test process of the system are dynamically optimized, and the flexibility of abnormity response and power consumption adjustment is improved.

The invention discloses a federated learning privacy protection method based on client grouping, and relates to the technical field of data security, the method provides privacy protection of different levels for different clients in an environment in which client data is not independently and identically distributed, and a central server groups the clients with similar data distribution based on Jensen-Shannon divergence; quantizing the balance degree of a client local data set through a balance data set, determining privacy protection levels among different groups, adding interference noise of a specific level to model updating of clients in the groups, and then performing intra-group aggregation; according to the method, for different privacy protection requirements between the clients, the clients are grouped, interference noise of different sizes is added to different groups, the requirement for privacy heterogeneity is met, meanwhile, the noise interference degree in the whole system is reduced, the global model precision is improved, and the method has the advantages of being high in practicability and easy to popularize. The problem of low global model precision caused by traditional differential privacy is solved.

The invention relates to the technical field of probe cards, and particularly discloses a probe card stroke compensation system and method, and the method comprises the steps: analyzing the distance value of each probe in a probe card, obtaining a distance characterization value WB, judging whether the abnormal degree of the probe card generates an adjustment signal or not based on the distance characterization value WB, and adjusting the stroke of the probe card based on the adjustment signal. The method comprises the following steps: applying test pressure to a single probe at a fixed rate, analyzing the change trend of a distance value along with the increase of the test pressure, judging whether the change of the distance value of the probe along with the increase of the test pressure is linear or not, and selecting an appropriate model as a prediction model based on the judgment result of whether the change of the distance value of the probe along with the increase of the test pressure is linear or not. According to the invention, the distance standard value can be adjusted in time according to the actual monitoring condition, and the pressure during the probe stroke compensation can be correspondingly adjusted, so that the problem caused by the overlarge difference between the actual distance value and the predicted distance value can be effectively solved, and the normal work of the probe card and the accuracy of the test effect can be ensured.

The invention discloses an intelligent computer performance testing system based on a Shell script, belongs to the technical field of computer performance testing, and aims to solve the technical problem of how to improve the automation degree of computer performance testing, avoid man-machine interaction and further improve the testing efficiency and accuracy. According to the technical scheme, a test package program installation module is used for triggering and automatically installing a software test package program; the file generation module is used for generating an HPL.Dat file when the mpich software is installed; the file updating module is used for updating the HPL.Dat file generated in the process of installing the software test package program; the execution module is used for transmitting data; the test preparation module is used for providing test information for testing the performance of the computer and processing the test information; and the test item forming module is used for constructing test items according to the separated test information so as to obtain computer system performance test content and record test item information.

The invention provides an airflow pattern testing tool, a testing device and an airflow pattern testing method, and relates to the technical field of airflow pattern testing. The air flow pattern test tool comprises a test piece; the surface of the test piece is a curved surface, a closed cavity is formed in the test piece, and the closed cavity is filled with gas with the density smaller than that of gas in the to-be-tested space, so that the test piece can float under the blowing action of the gas flow in the to-be-tested space and move in the flow direction of the gas flow. The airflow flow type testing tool can indicate the overall movement track of airflow through the testing piece which can float along with airflow blowing and move in the airflow direction, the testing process is continuous, all airflow movement tracks can be reflected, the testing accuracy is improved, operation is convenient and fast, and smoke residues cannot be generated to pollute the space to be tested.

The embodiment of the invention provides a chip adjusting and testing device and method, and the device comprises a communication control module which is used for connecting a chip with a PC end operation platform; the PC end operation platform is provided with an automatic test module and is used for calling an automatic use case interface through an interface and editing automatic use case parameters so as to test a chip according to an automatic test case, and the PC end operation platform is also provided with a user-defined use case mode and is used for identifying a control keyword, calling a user-defined use case development sub-interface and developing the chip according to the user-defined use case development sub-interface. A user can edit the user-defined use case to generate a user-defined use case interface, so that the chip is subjected to a user-defined test according to the user-defined use case interface; and the instrument control module is used for calling a corresponding test instrument according to the test instrument type input by the PC end operation platform so as to detect the chip and generate test data. The problem that some temporary or sudden test requirements in the chip test process are difficult to meet is solved, and the effect of conveniently testing the chip according to the requirements of a user is achieved.

The invention relates to the technical field of testing and fault diagnosis, in particular to a testing and fault diagnosis method and device for a navigation management responder and an airborne collision avoidance system, and the method comprises the steps: constructing a fault case library and an expert knowledge library, and testing the navigation management responder and the airborne collision avoidance system, acquiring test results and characteristic parameters of the navigation management responder and the airborne collision avoidance system; if the test result does not meet the preset standard, matching the feature parameters with fault cases in an expert knowledge base through an inference engine, and outputting fault causes and processing suggestions according to requirements; according to the technical scheme, by integrating the automatic test system and the fault diagnosis reasoning system, various performance tests of the navigation management responder and the airborne collision avoidance system can be automatically executed, and the test efficiency and precision are remarkably improved.

The invention provides a sampling modulation excitation signal phase acquisition device for an alternating current impedance method in the technical field of lithium battery detection. Comprising an excitation current AC signal synchronous extraction module, a signal in-phase and anti-phase switching control module, a phase adjustment module, a signal high gain and amplitude limiting module and a phase adjustment signal output module. The excitation current AC signal synchronous extraction module, the signal in-phase and anti-phase switching control module, the phase adjustment module, the signal high gain and amplitude limiting module and the phase adjustment signal output module are connected in sequence. The method has the advantage that the alternating-current impedance test precision is greatly improved.