152 results about "Test performance" patented technology

The invention relates to the technical field of fuel cells, in particular to a fuel cell gas diffusion layer performance comprehensive evaluation method and system and electronic equipment. The method comprises the following steps: acquiring multiple evaluation parameters of a target gas diffusion layer in the fuel cell under an actual working condition; wherein the multiple evaluation parameters comprise a polarization test performance parameter, an electrochemical impedance spectroscopy test performance parameter and a heat conduction test performance parameter; and obtaining a pre-constructed comprehensive evaluation model, and substituting the multiple evaluation parameters into the comprehensive evaluation model to obtain a comprehensive evaluation result of the target gas diffusion layer. Therefore, according to the fuel cell gas diffusion layer performance comprehensive evaluation method and system and the electronic equipment provided by the invention, the problem that an existing evaluation system only measures a single function and neglects a synergistic effect is fundamentally solved, comprehensiveness of evaluation dimensions is realized, designers can be helped to avoid overview decision errors, and the evaluation precision is improved. And a clear basis for model selection or GDL structure optimization guidance can be provided for designers.

The invention belongs to the technical field of high-temperature heat pipe heat transfer performance testing, and particularly relates to a high-temperature heat pipe performance testing device and method under the microgravity condition. The device comprises a heat pipe performance test body, a test cabin, a protection recovery system and a high-altitude carrying platform, the heat pipe performance test body is arranged in the test cabin, and the high-altitude carrying platform comprises a lift-off mechanism and a release mechanism and is used for sending the test cabin to an airspace at a specified height and releasing the test cabin to realize free falling of the test cabin. The protection recovery system adopts two-stage deceleration buffering to protect the test cabin. The device has the advantages of being controllable in cost, long in microgravity time and capable of being repeatedly used, performance testing of the large-length-diameter-ratio heat pipe under the simulated space microgravity environment can be carried out, and the performance of the high-temperature heat pipe under the real working condition can be accurately and comprehensively evaluated; the device is especially suitable for testing the starting characteristic, transient and steady-state characteristics and temperature uniformity of the high-temperature heat pipe under the microgravity condition.

The application discloses a test method, device, equipment, storage medium and product, and belongs to the technical field of artificial intelligence. The method comprises the following steps: obtaining a test sample; performing target identification processing on the test sample to obtain identification information corresponding to the original sample and the adversarial sample respectively; obtaining sample information corresponding to the original sample and the adversarial sample respectively; determining at least one test performance index corresponding to the target identification processing based on the sample information and the identification information; and determining a test result corresponding to the target identification processing based on the at least one test performance index. The embodiments of the application can be applied to various scenes such as cloud technology, artificial intelligence, intelligent transportation, auxiliary driving and vehicle-mounted application. The sample information and the identification information corresponding to the original sample and the adversarial sample are combined to determine the at least one test performance index to comprehensively measure the robustness of the target identification processing, so that a comprehensive and accurate test result is obtained, and the accuracy of the test performance index, the accuracy and the scientificity of the test result are improved.

The invention discloses a power distribution network topological structure construction method and system adaptive to a double-high characteristic, and relates to the field of topology, and the method comprises the steps: collecting double-high characteristic data through a sensor, building an evaluation system, and calculating a node comprehensive influence index; k-means clustering grouping is carried out based on the index and the geographic position, an intra-group minimum spanning tree initial topology is constructed with the transformer substation as the center, and dynamic adjustment is carried out after simulation verification; then, the inter-group power exchange requirement is determined according to the load and new energy characteristics, and the optimal contact topology is determined through multi-objective optimization; and finally, the intra-group topology and the inter-group topology are integrated to form a complete structure, and a verification model is established to test the performance under different scenes. The method has the advantages that the challenges of high-proportion new energy and power electronic equipment are effectively coped with and stable and efficient operation of a power distribution network is guaranteed by comprehensively collecting double-high data, scientifically clustering nodes, hierarchically optimizing intra-group and inter-group topologies and combining double-high scene simulation dynamic adjustment and performance verification.

A kind of comprehensive testing device for nuclear power plant control system relay fuse, it is characterized in that: including tester native, special-shaped heat pipe heat dissipation shielding module, magnetic interface conversion module, measured relay / fuse, external computer, external power supply;External power supply, measured relay / fuse, external computer are connected with tester native through shielding layer panel;External power supply powers tester native, external computer issues instruction to control tester native;Magnetic interface conversion module is connected with tester native, shielding layer panel.Connecting with tester native, shielding layer panel through magnetic interface conversion module, the stable and reliable work of relay fuse testing device in strong ionization environment is guaranteed;At the same time, through a series of design, it is guaranteed that the heat dissipation performance and electrical performance of relay fuse testing device are not influenced by shielding measure, the test function and test performance of relay fuse testing device are effectively guaranteed without discount.

The invention discloses a production scheduling method of a test fixture, electronic equipment, a storage medium and a program product, and relates to the technical field of test fixture scheduling, and the method comprises the steps: obtaining order information and resource information, the order information comprises a test priority corresponding to a test task, and the resource information comprises the test priority corresponding to the test task; the resource information comprises the test performance of the at least two test jigs and the station configuration of the test station, processing the order information and the resource information by using an automatic production scheduling model, and generating a production scheduling scheme with the maximum test efficiency under the condition of meeting the limit conditions corresponding to the test performance, the test priority and the station configuration. By comprehensively considering the characteristics of the test task, the test fixture and the test station, the automatic production scheduling model can generate the automatic production scheduling scheme based on the multi-dimensional information, the accuracy of the target production scheduling scheme under the function test scene is improved, and thus the test efficiency when the test task is executed is improved.

The invention discloses an underwater motor load simulation test device, which comprises a water tank and an axial force loading system, and is characterized in that the axial force loading system is sequentially connected with a pushing and twisting assembly, a front connection telescopic sealing assembly and an output load system; the actual working condition of the underwater motor in the underwater operation process can be simulated, a reference basis is provided for test performance verification of the underwater motor, and high economic value and social benefits are achieved.

The invention relates to a PCBA detection method and system. The method comprises the following steps: injecting an alternating current excitation signal to a preset test point on the PCBA when the PCBA is not powered on; collecting a first voltage-current response curve; constructing a corresponding feature vector, and inputting the feature vector into a pre-trained machine learning classification model to obtain a power failure diagnosis result; collecting a first electric signal of the key node in a power-on working state of the PCBA; constructing a first feature vector used for representing the operation state of each key node; inputting the first feature vector into a pre-trained isolated forest model to obtain a power-on diagnosis result; based on the power-down diagnosis result and the power-on diagnosis result, establishing a test performance database in which test item results and fault features are recorded, and based on the historical fault frequency in the test performance database and the fault features obtained in real time, dynamically reordering the test items which are not executed, and updating the current test sequence. The intelligent test process is realized, and the detection efficiency is improved.

The invention discloses a method for improving test panel welding test performance result accuracy. The method comprises the following steps that temperature measuring points C are sequentially arranged outwards perpendicular to a workpiece welding seam, and temperature measuring devices are installed at the temperature measuring points C; welding the workpiece, and recording a temperature curve of the workpiece until the temperature of the temperature measuring point C is cooled to 50 DEG C; temperature measuring points C'are sequentially arranged outwards in a manner of being perpendicular to the weld joint of the test plate, and temperature measuring devices are mounted at the temperature measuring points C '; the temperature measuring point C'of the test plate corresponds to the temperature measuring point C of the workpiece, and the distances between the correspondingly arranged temperature measuring points and the center of the welding seam are equal; the test plate is welded, the test plate is rapidly cooled through an accelerated heat conduction device, and the welding temperature is recorded till the temperature of a temperature measuring point C'is cooled to 50 DEG C; the peak temperature of the temperature measuring point and the time for cooling the peak temperature of the temperature measuring point to 50 DEG C are the same or similar; and carrying out physical and chemical property test on the welded test plate. The method has the beneficial effects that the impact toughness of the test plate is similar to that of a workpiece, and the method is used for guiding field production line welding process design and optimization.

The application discloses a performance detection method and device for service change code, a medium and a product, and relates to the technical field of software testing. The method comprises the following steps: acquiring performance analysis data corresponding to a plurality of stable software version branches of a target service running online respectively and generating stable performance fingerprints corresponding to the stable software versions respectively; determining that a target software version branch of the target service has undergone offline code change, generating test performance analysis data corresponding to the target software version branch according to a new version of the target service code and a to-be-tested performance fingerprint corresponding to the test performance analysis data; selecting a target stable performance fingerprint from the stable performance fingerprints, comparing each to-be-tested function call association feature in the to-be-tested performance fingerprint with each benchmark function call association feature in the target stable performance fingerprint, and obtaining a performance detection result. The technical scheme of the embodiment of the application can realize automatic performance risk assessment and interpretable early warning, and improves delivery quality and stability.

The present application relates to the field of electronic information technology, and relates to a method for testing performance of an oscilloscope through a LabVIEW software platform, which utilizes a signal generator to generate a Lissajous signal, utilizes a digital oscilloscope to receive two signals with fixed frequency ratio and phase difference generated by the signal generator, then fits the two signals to generate a Lissajous figure, collects data by means of a LabVIEW software platform designed automatic acquisition program, and generates a clear Lissajous figure observable in details by using Orign drawing software. In this process, only the noise interference of the oscilloscope itself will affect the curve smoothness of the final Lissajous figure, so the final result can reflect the performance of the oscilloscope to a certain extent.

The invention relates to a method and device for obtaining performance test overhead, a storage medium and electronic equipment, and the method comprises the steps: obtaining a test function for the performance test overhead, and setting a switch control function for the test function; the test function is operated based on the switch control function, and the basic overhead of the test function during operation is obtained; aiming at each to-be-tested performance tool, respectively embedding an instrumentation function corresponding to the to-be-tested performance tool into the test function to obtain a to-be-tested overhead test function corresponding to the to-be-tested performance tool; executing the to-be-tested overhead test function based on the switch control function, and respectively obtaining a first overhead for starting the instrumentation function in the to-be-tested overhead test function under the condition of no load and a second overhead for starting the instrumentation function under the load; and obtaining performance test overhead based on the basic overhead, the first overhead and the second overhead. The test accuracy of the to-be-tested application program can be improved.

The invention discloses a small gas turbine experiment testing device which comprises a turbine shell and a shell assembly and further comprises a turbine rotor. The turbine rotor comprises a turbine shaft and a turbine disc arranged on the turbine shaft in a sleeving mode, and the turbine disc is located in the turbine shell. One end of the turbine shaft extends out of the shell assembly; a flow guide part is further installed in the turbine shell, an annular cavity is formed among the flow guide part, the turbine disc and the turbine shell, an annular cavity outlet is further formed in the turbine shell, and the annular cavity outlet is communicated with the annular cavity. According to the testing device for the small gas turbine test, the internal structure is simplified, the structure is compact, the connection strength is high, interference of external factors can be effectively reduced, energy loss except for a tested piece is reduced, and the influence of external loss on a test result is reduced. The turbine performance test can be conveniently carried out, and the gas turbine test performance of a small rocket engine can be obtained.

The application discloses a kind of based on acceleration sensor's automobile safety air bag gas generator performance test method, utilize rigid container, piston, high-speed camera, refrigeration type infrared thermal imager, pressure sensor, acceleration sensor, data recording device;Through the linear motion of piston, indirectly measure the energy that air bag gas generator combustion converts into gas kinetic energy, through the temperature change of gas and air bag gas generator metal shell, indirectly measure the energy that air bag gas generator combustion converts into gas internal energy and converts into air bag gas generator metal shell internal energy, and obtain effective work ratio, and can monitor whether the test process produces flaming and the highest gas temperature around air bag gas generator inflation hole.The present application has reliable theoretical basis, convenient operation, accurate measurement result, provides the test and solution method of multiple-dimension air bag gas generator performance evaluation index, and provides certain technical support for actual research and production.

The invention relates to a heterogeneous network-oriented ad hoc network radio station intelligent test system and method, belongs to the technical field of ad hoc network communication equipment test, and solves the problems of low heterogeneous network ad hoc network test efficiency and poor scene adaptability in the prior art. The system specifically comprises an environment sensing unit used for collecting environment data; the heterogeneous network unit comprises a first ad hoc network radio station module, a second ad hoc network radio station module and a 5G base station module, and is used for configuring initial working parameters of each module and constructing a heterogeneous network environment; the intelligent test terminal module is used for issuing a test data packet generated according to the environment data to the first ad hoc network radio station module, and performing ad hoc network performance test by capturing test data of a second radio station module or a 5G base station module of a heterogeneous network link; and the test module is also used for adjusting the working parameters of each module according to the tested performance index value so as to obtain the performance extreme value of the heterogeneous network unit in the current environment, thereby realizing the environment-adaptive ad hoc network test.

This application proposes a data calculation method for a city information model based on CIM, belonging to the field of data processing. The method includes: semantic parsing of the target test scenario description information to construct a test scenario feature vector; constructing an evolutionary parameter space for at least one evolutionary prediction model based on the CIM city information model; training the probability function mapping relationship between the test scenario feature vector and the evolutionary parameter space, and outputting an adaptive evolutionary parameter combination based on the probability function mapping relationship; importing the data into the evolutionary prediction model to perform data evolution calculation, obtaining a dynamic evolutionary time-series dataset, which is then transmitted as test cases to the test system terminal containing the target test scenario description information to obtain the test performance results of the tested target. By adaptively adjusting the evolutionary parameter combination according to the test scenario characteristics, the dynamic time-series data output by the evolutionary prediction model better matches the needs of various test scenarios, thereby improving the accuracy and computational efficiency of test cases.

The application relates to a battery piece electrical performance test method and device, a storage medium and a battery piece testing machine. The probe of the battery piece testing machine is contacted with a spliced whole battery piece to obtain test performance data of the spliced whole battery piece and test performance data of a half battery piece; performance index reference data is obtained by analyzing the test performance data of the half battery piece; a performance index coefficient is determined according to the test performance data of the spliced whole battery piece and the performance index reference data; and the test performance data of the half battery piece is corrected according to the performance index coefficient to obtain corrected performance data of the half battery piece. When the performance of the half battery piece is detected, the half battery piece is spliced into a whole battery piece to obtain data, the test performance data of the half battery piece is corrected by analyzing the performance index coefficient, and the test accuracy of the sliced battery piece is improved.

A shared file system performance test method, tool, device and storage medium, comprising: obtaining the startup parameters of the test node in the shared file system to start the test program to perform write operation and shift operation on the target file system; when the write file flag is 1, a data file containing pseudo-random number initialization is generated and written to a subdirectory composed of year, serial day and hour; when the shift flag is 1, the data file is shifted from the write directory to the shift target directory by directly calculating the file path and file name in the memory; the success and failure times and time consumption of writing and shifting in the write operation and the shift operation are recorded, the test result is generated and output, the technical problem that the related technology generally starts from IOPS and cannot truly reflect the business application performance is solved, the performance test data truly reflecting the business scenario is generated, and the IOPS utilization rate is improved.

A method includes splitting an input image into a plurality of patches with each patch corresponding to a distinct region of the input image using a vision transformer. The input image is defined using a model output of a vision model. The method further includes defining a plurality of position embeddings including a position embedding for each of the plurality of patches and for the input image as a whole using the vision transformer, labeling identified regions of the original image based on the estimated loss map to define a labeled image; and outputting a test performance qualifier indicating expected performance of the vision model when the vision model is part of the vision system. The test performance qualifier is calculated using a weighted analysis based on the image loss level and the regional loss level for each patch provided with the labeled image.

Mechanisms for optimizing solid-state drive (SSD) performance are provided, the mechanisms including: determining a current workload type of an SSD; selecting SSD parameters to optimize based on the current workload type; setting current values of the SSD parameters; testing performance of the SSD using the current values of the SSD parameters; changing one or more of the current values of the SSD parameters; re-testing the performance of the SSD after changing the current values; and setting the current values of the SSD parameters to determined best values of the SSD parameters. In some of these embodiments, setting the current values of the SSD parameters comprises setting the current values to random values or pseudo-random values. In some of these embodiments, testing performance of the SSD using the current values of the SSD parameters is performed using a test workload.

The application relates to the technical field of application server middleware performance test, and particularly discloses an application server middleware performance test system. The system comprises a business scene intelligent modeling module, an adaptive load generation and scheduling module, a full-stack performance data acquisition and correlation analysis module and a test environment automatic management module. Through the cooperative work of the above modules, the test script is automatically generated from natural language or logs, the load pressure is dynamically adjusted based on real-time feedback, the full-stack performance data correlation analysis and root cause positioning are realized, and the test environment is automatically constructed and elastically expanded, so that the efficiency, authenticity and automation level of the performance test are improved.

The application relates to the technical field of material testing, and particularly relates to a digital twin management method and system based on multi-source data fusion. A test material is placed in a test environment with specified test conditions to collect multi-source monitoring data of the test material in the test environment. The multi-source monitoring data is fed back to a pre-established digital twin, and simulation data corresponding to various test conditions of the digital twin is recorded. The simulation data corresponding to various test conditions is arranged in a test time sequence to obtain test performance information flow of the digital twin. The material properties of the test material are analyzed based on the test performance information flow, and life cycle information flow of the test material in various working environments is constructed according to the analysis result.

The application provides a receiver test method and device, electronic equipment, a chip and a storage medium, and relates to the technical field of communication. The method comprises the following steps: generating a simulation receiving signal of a receiver based on first data; performing simulation interference factor adding processing on the simulation receiving signal to obtain a first intermediate signal; performing sampling processing on the first intermediate signal to obtain a second intermediate signal, wherein the sampling rate of the second intermediate signal matches the sampling rate required by baseband processing; performing baseband processing on the second intermediate signal to obtain second data extracted from the second intermediate signal; and performing performance testing on the receiver according to the first data and the second data. Through simulation of the whole-machine processing process of the receiver under the wireless signal receiving, a performance evaluation result closer to the actual machine test performance is obtained, and the performance problem of the whole-machine scheme of the receiver can be found early.

This invention discloses a performance testing method and system for Ethernet switches, relating to the field of switch testing technology. The method includes setting up an Ethernet switch test scenario, fixing Ethernet switch parameters, using a tester to collect multi-source data transmitted by the Ethernet switch, classifying data packets into complete packets and missing / abnormal packets, further dividing the data into normal packets and abnormal packets, locating and tracing the source of abnormal data, analyzing the influencing factors of abnormal data, and comprehensively evaluating the Ethernet switch test results. This invention overcomes the limitations of traditional testing methods that rely solely on normal data for evaluation. By incorporating missing and abnormal data into the performance analysis system, it marks missing and abnormal packets through integrity verification and identifies outliers. This not only distinguishes between occasional noise and genuine anomalies but also improves the efficiency of root cause localization of abnormal data through a hierarchical progressive method and temporal correlation analysis, thereby enhancing the realism of Ethernet switch performance testing.

This invention discloses an automatic graphics card performance testing method and system, belonging to the testing field. The automatic graphics card performance testing method includes the following steps: clearly defining and configuring a normal mode and an anti-cheat mode; in normal mode, disabling all unnecessary background services and anti-cheat functions to construct a clean testing environment and measuring the theoretical maximum performance of the graphics card; in anti-cheat mode, this invention constructs two controlled environments, normal mode and anti-cheat mode. The former provides a performance benchmark, while the latter actively simulates the real environment brought about by the game's anti-cheat process scanning in the background. Identical synthetic benchmark tests are performed in both modes, and hardware performance data and computer system activity data are accurately collected. By comparing and analyzing the performance index differences between the two modes, the invention provides graphics card performance data in both normal and anti-cheat modes, improving the accuracy of graphics card performance evaluation and enhancing the practical reference value of the test results.

This application relates to an antenna reconfiguration system, an antenna reconfiguration control method and apparatus, and a computer device. In this system, a directional antenna transmitting system provides a radio frequency signal of the same frequency to each antenna element in the array antenna under test in a time-division multiplexing manner and records the position information of the antenna element. The antenna testing system controls the target antenna element affected by the current radio frequency signal to operate and acquires the test performance parameters of the target antenna element. Based on the position information of the target antenna element, when the target antenna element has not reached the preset performance requirements, a first robotic arm moves a laser device to the location of the target antenna element according to the image captured by the camera and the position information of the target antenna element, so that the laser device performs laser reconfiguration on the target antenna element until the test performance parameters of the target antenna element reach the preset performance requirements, thereby realizing antenna reconfiguration, improving yield, and having high test reconfiguration efficiency, reducing the requirements for production equipment.

This invention relates to the technical field of cloud computing, and in particular provides a performance testing method for virtual switches in computing clusters. The method includes creating virtual machines on multiple physical nodes of the computing cluster; deploying a transceiver on the virtual machine of at least one physical node, and a forwarding program on the virtual machines of the remaining physical nodes; controlling the transceiver and the forwarding program to perform a loop forwarding test, so that packets are forwarded by the forwarding program and then returned to the transceiver; recording performance parameters during the loop forwarding test for performance problem analysis. The forwarding program of this invention generates a corresponding forwarding mapping table based on the traffic path and model, and forwards packets according to the mapping table, forming multiple ring flows to achieve ring network forwarding capability across multiple nodes, thereby improving the coverage of virtual switch testing.

This invention relates to a PCBA testing method and system. The invention includes: injecting AC excitation signals into preset test points on the PCBA when it is not powered on; acquiring a first voltage-current response curve; constructing a corresponding feature vector and inputting the feature vector into a pre-trained machine learning classification model to obtain a power-down diagnostic result; acquiring first electrical signals of key nodes when the PCBA is powered on; constructing a first feature vector to characterize the operating state of each key node; inputting the first feature vector into a pre-trained isolated forest model to obtain a power-on diagnostic result; establishing a test performance database recording test item results and fault characteristics based on the power-down diagnostic result and the power-on diagnostic result; dynamically reordering unexecuted test items and updating the current test sequence based on the historical fault frequency and real-time acquired fault characteristics in the test performance database. This achieves intelligent testing and improves testing efficiency.

The invention relates to the technical field of fire extinguishing testing, in particular to a fire extinguisher performance testing method and system and a computer program product.The method comprises the steps that according to the applicability of a target fire extinguisher, a target fire scene environment is simulated on the basis of environmental factors having influences on combustion and fire extinguishing effects; according to a preset control mode of the fire extinguishing robot, the fire extinguishing robot is controlled to execute fire extinguishing operation on the target fire scene environment through the target fire extinguisher; and in the fire extinguishing operation execution process, relevant information reflecting the fire extinguishing effect of the target fire extinguisher is collected in real time, so that a performance test result of the target fire extinguisher is generated. Therefore, the problems that in the prior art, due to the fact that the detection result is greatly influenced by factors such as experience, techniques and states of fire extinguishing experiment operators and the temperature, humidity and ventilation degree of a testing environment, performance testing errors are large possibly, the operators need to frequently approach a fire source, and safety risks exist are solved.

The present invention relates to a test apparatus for testing the performance of a battery, and more particularly, to a cyclic test apparatus for testing the performance of the battery by repeatedly charging and discharging the battery for a long period of time within a predetermined temperature. One embodiment of the present invention may provide a loop test apparatus including: a first refrigerator having a cooling capacity for maintaining a temperature in a chamber at a predetermined temperature in consideration of a thermal load in the chamber; a second refrigerator provided separately from the first refrigerator, and having a cooling capacity greater than that of the first refrigerator to reduce a temperature in the chamber; and a control unit that controls the second refrigerator to be selectively driven in a cooling operation for reducing a temperature in the chamber.