54 results about "Test duration" patented technology

The invention relates to the technical field of electric power fitting testing, in particular to an electric power fitting aging testing device and method, the stress state of an electric power fitting in actual use is simulated through the cooperation of a tensioning mechanism and a mechanical loading mechanism, environmental loads such as temperature change, humidity change and salt mist are applied through an environmental load simulation mechanism, and the aging test of the electric power fitting is achieved. And meanwhile, alternating current is applied to the electric power fitting through the power supply module, so that the actual load of the electric power fitting is comprehensively simulated, a test environment identical to an actual application environment is constructed, and the reliability of a test result is ensured. And meanwhile, an equivalent cable simulation load spectrum is deduced according to historical load data by using a fatigue damage model, and the tensioning mechanism, the mechanical loading mechanism and the environment simulation mechanism act cooperatively according to the cable simulation load spectrum to carry out aging test on the electric power fitting, so that the test time is shortened, and the accuracy of an aging test result is ensured.

The application provides a device and method for testing the duration and coagulation strength of black ice on a phase change asphalt pavement, and belongs to the technical field of road surface anti-icing performance testing technology. The device comprises a pressure head unit, a water tank unit and a collection unit. The pressure head unit comprises a hollow circular tube, a concentric variable-diameter special-shaped tube, a circular sheet, a steel ball, a circular rod, a cylinder and a spring. The water tank unit comprises a fan-shaped water tank, a plastic film, a screw, a level and a horizontal adjustment foot with a screw rod. The collection unit comprises an electric conductivity meter and a pressure gauge. The test method of the application is as follows: a freeze-thaw test is carried out on the phase change asphalt mixture with different thicknesses of water film on the bottom surface, the coagulation time, melting time and duration of black ice with different thicknesses are tested from the electric conductivity-time curve, and the coagulation strength of black ice with different thicknesses is tested by pressing the black ice with different thicknesses to break.

This invention relates to the field of power dispatch and control technology, and in particular to a method and system for constructing an AGC test and verification scenario library containing new energy sources. The method first standardizes and cleans abnormal data from multi-source historical power grid operation data, performs AGC unit inversion correction, and generates initial AGC test data sets by dividing the data into segments according to a preset test duration. Then, based on each data set, AGC closed-loop simulation tests are performed, and valid test samples are selected according to power flow convergence to construct a preliminary scenario library. Further, from three dimensions—typical operation scenarios, fault scenarios, and new energy output scenarios—the valid samples are clustered and labeled to extract composite test scenarios and remove redundant samples. Finally, an AGC abnormal operating condition quantification model is constructed to derive extreme abnormal operating condition test scenarios, forming the final scenario library, thereby improving the comprehensive verification capability of the AGC system under high-proportion new energy conditions.

The invention discloses an automatic test method for rated power of a DC / DC converter of a new energy automobile, which mainly aims at finding and adjusting the condition that the actual output power of the DC / DC converter is higher than a rated value in time and avoiding the risks of fuse fusing, line overheating, low-voltage electric equipment burning, even fire and the like caused by exceeding the bearing limit of a low-voltage system component. Specifically, the method comprises the steps of firstly deploying a power test system and performing line connection, setting test parameters after deployment is completed, starting a test and collecting test data within a preset test duration; in the test process, when the output power of the DC / DC converter exceeds the power control upper and lower limit values, the current of the DC electronic load is automatically adjusted, so that the output power of the DC / DC converter returns to the control range. According to the invention, the test value of the rated power of the DC / DC converter can be accurately obtained at one time, the test cost is greatly reduced, the safety is improved, and the consistency and reliability of the test result are effectively ensured.

The application discloses a kind of prediction methods of corrosion test vehicle parts corrosion grade, first combine the corrosion test data of vehicle parts with BP neural network method.The method is based on historical data and early test data, combined with the material type of target component, surface protection type, test duration and the corrosion grade of previous cycle, can quickly predict the corrosion grade of all subsequent cycles.The prediction method process includes: S1, data acquisition;S2, data preprocessing;S3, BP neural network construction;S4, model training optimization;S5, prediction output.Using the above method, the corrosion test cycle can be significantly shortened, and high-precision prediction support is provided for corrosion prevention process optimization and dynamic adjustment of test scheme.

The invention discloses an indoor simulation illumination test system of a solar cell array. The test system comprises a user interaction module used for forming a human-computer interface and determining a test task according to user operation, and task parameters of the test task comprise a target illumination intensity set value, test duration, a sampling mode, a recording strategy and a safety threshold; the communication module is used for abstracting a physical device into an addressable device object and providing command issuing and data reading capabilities for the device object; the control module is used for calculating a control quantity according to the target illumination intensity set value and an actual measurement value of the illumination sensor, and converting the control quantity into a corresponding adjustment instruction to perform an illumination test; the data stream processing module is used for performing stream processing on measurement data and control data generated in the illumination test process; and the safety protection module is used for executing a protection action when the safety event is triggered.

A test device and test method for a heat output of a heat pump water heater. The device comprises: a water tank (5) water inlet temperature sensor (1) and a water tank (5) water outlet temperature sensor (2); a flow meter (3), which is provided on a refrigerant liquid return pipe (6) between a heat pump water heater main unit (4) and the water tank (5); a sampling tank (7), which is provided on the refrigerant liquid return pipe (6); a refrigerant pipe inlet-to-water-tank temperature sensor (11) and a refrigerant pipe outlet-from-water-tank temperature sensor (12); two pressure sensors; an electric heating tank (8), which is connected in series between the water inlet and the water outlet of the water tank (5); and a circulating water pump (9), which is connected in series between the electric heating tank (8) and the water tank (5). The power supply end of an electric heating element is connected to an electric energy meter. The technical problems in the prior art of test failure and increased test cost caused by failing to accurately control the test duration for a heat pump water heater and the average temperature of a water tank during heat pump water heater performance testing can be solved.

The invention provides a hydraulic heavy-load sealing leakage rate measuring device and method, and belongs to the technical field of sealing element testing. The device aims at solving the problem that leakage rate measurement is not accurate under the heavy load and high pressure composite working condition. The device comprises a test tool for forming a sealing cavity, a hydraulic system for applying a normal load, a liquid supply system for providing a high-pressure medium, and a measurement module comprising a weighing device. The method comprises the steps of installing a sealing ring, applying a load and supplying a high-pressure medium, then collecting and weighing the mass of the leaked medium by using a weighing device, recording the test duration, and finally calculating the leakage rate according to the mass and the duration. The method can truly simulate harsh working conditions, adopts a mass method for direct measurement, is accurate and reliable in result, and gives consideration to both cost and automation degree.

This invention discloses a method for designing an average lifetime verification test that follows a Type I minimum distribution, comprising the following specific steps: Step 1: For products whose lifetime follows a Type I minimum distribution, determine the probability density function and cumulative distribution function of their lifetime; establish the probability function corresponding to the number of sample failures; Step 2: Establish the mapping relationship between the true average lifetime of the product and location parameters and scale parameters, and derive the correlation function between the probability function corresponding to the number of sample failures and the acceptance probability function corresponding to the true average lifetime when given a number of received failures; and establish the first constraint condition and the second constraint condition; Step 3: Preset the test conditions, calculate and output the total test duration, the number of received failures, and the number of rejected failures that meet the test conditions, and form a time-truncated test scheme. The method proposed in this invention is simple to calculate, the evaluation results are more stable, it is convenient for engineering technicians to master and use, and it is easy to apply and promote.

The invention relates to the technical field of reliability testing, in particular to a reliability testing method for a special vehicle loading structure and a special vehicle loading test bed control device. The method comprises the following steps: receiving a test task; the test tasks comprise loading types, test times and test duration; installing a loading structure of the special vehicle in the test area, judging whether the type of the loading structure is matched with the loading type or not, and judging whether the number of tested times of the loading structure is smaller than the number of test times or not; when the type of the loading structure is matched with the loading type and the number of tested times is smaller than the number of tested times, controlling a driving assembly to drive the loading structure to move for a test duration, and obtaining test data of the loading structure; and judging whether the loading structure is reliable or not based on test data of multiple tests. By adopting the method, the reliability test of various top-mounted structures can be realized by using the same top-mounted test bed control device.

This invention discloses a testing method, testing device, computer program product, and storage medium for airbag deployment control. The method includes: acquiring test items, which at least include test fault items and vehicle collision types; the test fault items at least include a target fault sensor, sensor fault type, and fault duration; based on the test fault items, inputting a fault simulation signal corresponding to the test fault item to the airbag control system; based on the vehicle collision type, inputting a collision simulation signal corresponding to the vehicle collision type to the airbag control system; detecting the output control signal of the airbag control system within a preset test duration, where the preset test duration is greater than the fault duration setting; and generating test results for the airbag control system based on the output control signal. This invention solves the technical problems of limitations, high testing costs, and long testing cycles in related airbag deployment control system testing methods.

The application provides a method and system for stress testing of an artificial intelligence system with a heterogeneous architecture. The method for stress testing of an artificial intelligence system with a heterogeneous architecture includes: performing statistics on historical test data of previous stress tests in a historical database to determine the correlation between test environments, test case types, fault modes, and test durations; generating a personalized test strategy for each of a plurality of test environments under test of the artificial intelligence system with a heterogeneous architecture under test based on the correlation between the test environments, the test case types, the fault modes, and the test durations; and performing stress testing on the plurality of test environments under test in parallel based on the personalized test strategy of each of the test environments under test.

The invention discloses an electrolytic bath performance evaluation and operation load optimization method and device and a medium, and relates to the technical field of electrolytic bath evaluation, and the method comprises the steps: obtaining low-load test data of an electrolytic bath in a low-load operation state; the low-load test data comprises hydrogen purity, oxygen purity, unit tank voltage of each unit tank, actually measured circulating alkali concentration and test duration; calculating a membrane pinhole index according to the hydrogen purity, the oxygen purity and the unit groove voltages of all the unit grooves; calculating the attenuation index of the coating according to the unit tank voltages of all the unit tanks, the actually measured circulating alkali concentration and the test duration; evaluating the performance of the electrolytic cell according to the membrane pinhole index and the coating attenuation index to obtain a comprehensive health index of the electrolytic cell; and performing optimization decision on the operation load of the electrolytic cell according to the health comprehensive index of the electrolytic cell, and determining an electrolytic cell optimization decision measure. The method can realize accurate evaluation of the performance of the electrolytic cell while maintaining continuous production.

The invention discloses an internal scan chain generation method and device for an integrated chip in a 2.5 D / 3D circuit, a storage medium and equipment. The integrated chip comprises a plurality of cores, and each core is connected to each test bus through a controllable unit; the method comprises the following steps: receiving scan chain demand information; based on the received test demand information, by taking minimization of the overall test duration of the integrated chip as a target, utilizing a preset scan chain configuration model to obtain scan chain configuration information; and based on the obtained scan chain configuration information, controlling a corresponding controllable unit to generate a corresponding scan chain. By adopting the scheme, the configuration flexibility of the scan chain in the integrated chip can be improved so as to meet a dynamically changing integrated environment in a 2.5 D / 3D circuit.

The invention provides a method and system for carrying out pressure testing on an artificial intelligence system of a heterogeneous architecture. The method for carrying out the pressure test on the artificial intelligence system of the heterogeneous architecture comprises the following steps: carrying out statistics on historical test data of previous pressure tests in a historical database so as to determine an association relationship among a test environment, a test case type, a fault mode and test duration; generating a personalized test strategy for each to-be-tested test environment in a plurality of to-be-tested test environments of the to-be-tested artificial intelligence system of the heterogeneous architecture on the basis of an association relationship among the test environment, the test case type, the fault mode and the test duration; and based on the generated personalized test strategy of each to-be-tested test environment, carrying out pressure test on the plurality of to-be-tested test environments in parallel.

The invention relates to a temperature control method and device for an artificial intelligence chip test, equipment, a storage medium and a program product, and relates to the technical field of artificial intelligence chips. According to the invention, the accuracy of artificial intelligence chip testing can be effectively guaranteed. The method comprises the following steps: acquiring a current voltage and a current frequency for a current test of the artificial intelligence chip, and inputting the current voltage and the current frequency into a first prediction model to output current predicted power consumption and a current predicted load rate of the artificial intelligence chip by the first prediction model, and inputting the current voltage, the current frequency, the current predicted power consumption, the current predicted load rate, the current initial temperature of the temperature control module and the current test duration used for the current test of the artificial intelligence chip into a second prediction model, so that the second prediction model outputs the current predicted temperature of the artificial intelligence chip. And sending a temperature adjustment instruction to the temperature control module according to the current predicted temperature, the test demand temperature for the current test of the artificial intelligence chip and the current initial temperature.

The invention discloses a bypass throttling pressure regulating system for an ejector, a design method and a pressure regulating method, and aims to solve the problems that the test duration of an existing ejector is limited, and the cost of an existing test time prolonging scheme is high or the system is complex. The system comprises a main pressure regulating valve of a main control pipeline, a throttling orifice plate of a bypass pipeline and a bypass quick switching valve, wherein the bypass pipeline is connected to the two ends of the main pressure regulating valve in parallel; the working pressure range of the main pressure regulating valve is expanded, the available pressure area of an air source is expanded, and the test duration is prolonged; additional pressure regulating valves or a large number of gas storage tanks are not needed, the number of parts is reduced, and the equipment cost is reduced; in the test process, the main pressure regulating valve and the bypass quick switch valve are controlled to be fully opened only through a PID program, the complexity of the control system is reduced, in addition, due to the existence of the bypass system, the flow flowing through the main pressure regulating valve is reduced, the flow load of the main pressure regulating valve is reduced, the control difficulty of the main pressure regulating valve is further reduced, and the test efficiency is improved. And the service life of the main pressure regulating valve is prolonged.

The invention discloses a method for testing and characterizing the lateral sliding friction coefficient of a tire, which comprises the following steps of: S1, warming the tire, and removing an oxide film on the surface of the tire to enable the temperature of the tire to reach the working temperature; and S2, applying a vertical load to the tire to enable the tire to roll freely, and performing quasi-steady-state side deviation on the tire at a set side slip angle loading rate to obtain a change curve of the lateral force and the aligning torque along with the side slip angle. According to the invention, the lateral slip state of the tire is approximately maintained in the whole course, the transition process from a linear region to a peak region in the lateral deviation movement of the tire is avoided, the influence of the slip speed and the tread temperature is coupled, the wear of the tire is reduced, and the test time is shortened; according to the characterization method, the change relation among the sliding speed, the tread temperature and the lateral sliding friction coefficient is visually presented through a thermodynamic diagram, and a visual basis is provided for research on the multi-factor coupling effect of the lateral sliding friction coefficient.

Embodiments of the present application disclose an application program testing method and device, electronic equipment and storage medium. The method comprises: obtaining a first test duration of a random test mode; according to a graph of a to-be-tested application program, executing a segment corresponding to a control in a page of the to-be-tested application program by the random test mode, recording a first segment and a first page that have been executed, obtaining a test result of the first segment, until the test duration of the random test mode reaches the first test duration; the segment is test content corresponding to the control; according to the graph, the first segment and the first page, determining a second segment that has not been executed and a second page where the second segment is located; according to the second page, executing the second segment by a traversal test mode, and obtaining a test result of the second segment. The embodiments of the present application can improve test efficiency and software quality of the application program.

The application belongs to the technical field of unmanned aerial vehicles, and discloses a hovering test method and system for selected designated aircraft of formation aircraft and application. The method comprises the following steps: the aircraft enters a GPS fixed solution state; a ground station automatically numbers the position and placement distance of the aircraft; the ground station takes the height of the original point aircraft as a reference height and issues a hovering instruction; the aircraft receives the hovering instruction, takes the current position longitude and latitude and the height issued by the ground station as a target position, and performs hovering flight without time limit by default; after completing the hovering test, an operation operator clicks landing, and flight test is completed. Through optimization of the hovering test scheme of the formation aircraft, the aircraft can perform flight test after the ground station issues the flight height, and the test duration when the aircraft flies to a low battery level by default, which improves the flexibility of aircraft verification, and a one-key landing is matched to perfectly replace the hovering test of the dance step waypoint position flight.

The invention relates to test methods (P) for testing the connection quality of a thermal conductivity connection (1) by means of which a connecting element (4) of a temperature sensor unit (5) and a measuring point (3) of a thermal conductivity body (6) are connected to each other, wherein P1 of the heat conductor (6) is heated; P2 during a specified test duration, two or more sensor values ​​provided by a temperature sensor (10) of the temperature sensor unit (5) are recorded by means of a recording device (9); P3 is a sensor value gradient (SWG) that combines two sensor values ​​recorded in succession over time; P4 is provided based on the sensor value gradient (SWG): P4a a first connection quality signal characterizing a successfully established thermal interface (1) when a gradient magnitude of the sensor value gradient (SWG) is equal to or greater than a specified minimum gradient magnitude, or P4b is a second connection quality signal characterizing an unsuccessfully produced thermal interface (1) if the gradient magnitude is less than the specified minimum gradient magnitude. Furthermore, the invention relates to a joining method (V) comprising the testing method (P), and furthermore to a computer program and a computer-readable storage medium.

The invention discloses a processor testing method and device, and relates to the technical field of testing, and the method comprises the steps: obtaining a test picture and a test video, preprocessing the test picture and the test video, inputting a preset model operated in a to-be-tested processor, executing the preset model through the to-be-tested processor, processing a standard test picture and a standard test video, and recording the processing duration. And determining the test result according to the weight corresponding to each model in combination with the processing duration, thereby accurately reflecting the time delay degree of the to-be-tested processor by integrating the test duration of the to-be-tested processor on the picture and the video and the test results of the plurality of models, providing a time delay test scheme of the processor, and enabling the processor test to be more comprehensive.

The application provides a method and device for generating a test spectrum of a durability test, the method comprising: obtaining an electric machine acceleration factor of an electric machine under a typical working condition according to a temperature distribution of a winding of the electric machine under the typical working condition, and determining a high-temperature test duration based on the electric machine acceleration factor; distributing the high-temperature test duration to each working condition point under the typical working condition, associating each working condition point to a corresponding test period, and the distribution result making an estimated mechanical fatigue damage reach a preset mechanical durability test requirement, wherein a sum of the test periods of the each working condition point is equal to the high-temperature test duration; and determining a test spectrum based on the distribution result.

This invention provides a method, apparatus, and equipment for testing the combined hybrid power system efficiency. Relating to the field of vehicle testing technology, the method includes: acquiring multiple sets of driving parameters and multiple sets of energy consumption input parameters of a vehicle operating under target conditions using a hybrid power system within a target test duration; calculating the output energy of the hybrid power system within the target test duration based on the multiple sets of driving parameters; calculating the input energy of the hybrid power system within the target test duration based on the multiple sets of energy consumption input parameters; and determining the combined hybrid power system efficiency under the target conditions based on the output energy and input energy. This method focuses on the actual operating conditions of the vehicle, and by acquiring multiple sets of driving parameters and energy consumption input parameters, calculating the output energy and input energy step by step, and determining the combined hybrid power efficiency, it can accurately reflect the actual energy efficiency level of the hybrid power system, improving the accuracy and reliability of the test results.

A high-temperature reverse bias aging test method and system, a terminal, and a medium. The high-temperature reverse bias aging test method comprises: acquiring a test instruction (S100); on the basis of the test instruction, acquiring product information of a device under test (S200); on the basis of the product information of said device, acquiring a test duration, a test environment, and a corresponding test voltage (S300); on the basis of the test duration, the test environment, and the corresponding test voltage, testing said device, and acquiring a test result (S400); and if the test result does not meet a high-temperature aging standard condition, outputting warning information (S500). The method can improve the test precision and reliability.

The invention relates to a clustering scheduling control method for multichannel electromagnetic valve test resources, and belongs to the technical field of detection. The method comprises the following steps: constructing a product value model to output a product value coefficient, and constructing a node load model to output a node load coefficient based on a node task completion rate, an average test duration, a working duration and a task queue length; a node-product adaptation model is constructed through the air pressure fluctuation ratio, the flow demand ratio and the response time ratio, and the node-product adaptation degree is output; and dynamically allocating the node task load through a task allocation model in combination with the product task load, the value coefficient and the node-product adaptation degree. According to the method, the problems of low resource utilization rate and unintelligent scheduling in a traditional test are solved, high-value task priority allocation, load balancing and physical constraint accurate matching are realized, and the test efficiency and reliability are improved.

A kind of vehicle endurance test specification combination development method based on mixed entropy multi-index decision-making, comprising: collecting whole vehicle and user damage data, and based on load spectrum damage equivalence principle, construct user-test field damage equivalence correlation model, based on damage equivalence correlation model, construct multi-objective optimization model;Using NSGA-II algorithm to optimize and solve multi-objective optimization model, obtain Pareto non-inferior solution set;Introduce mixed entropy weight and CRITIC two methods, construct mixed entropy multi-index decision-making algorithm, determine the comprehensive contribution of each solution in Pareto non-inferior solution set by mixed entropy multi-index decision-making algorithm;Based on the comprehensive contribution of each solution in Pareto non-inferior solution set, obtain the solution with the highest comprehensive contribution, and obtain the vehicle endurance test specification based on the solution with the highest comprehensive contribution.The present application can realize the effective correlation between test field and user road in the process of endurance test specification formulation, thereby reducing test mileage and test duration, and reducing test cost.

The invention relates to the technical field of BMS testing, and discloses a rapid test scene switching method and system for a BMS-HIL test system, and the method comprises the steps: obtaining a test instruction through an upper computer, recognizing a test sequence and test data which are in one-to-one correspondence, and generating a switching instruction in sequence; the control center responds to the instruction and deploys the data packet to the matrix switch array and the HIL signal source, so that the HIL signal source is electrically connected with the current BMS controller; when the current BMS is tested, a switching instruction of the next BMS is prepared in advance, and after the test is completed, the next BMS is automatically switched to be tested through the matrix switch; the test duration can be adjusted according to the number of interfaces, the model of the controller is verified, and multiple groups of signal sources are configured for adaptive test. The method greatly shortens the switching time consumption, improves the test efficiency and continuity, and guarantees the accuracy and safety of the test.

The invention discloses a fixed positive and negative pressure conduit flow testing method. According to the invention, through the cooperation of accurate parameter setting and a staged pressure regulation strategy, the pressure control performance is obviously improved. The set target pressure value and the test duration serve as the core basis of adjustment, and the adjustment direction of the pressure system completely meets the test requirement; according to the staged strategy, the initial pressure difference is shortened through the maximum capacity of hardware, then the fluctuation range is compressed through multiple rounds of fine calibration, the single logic limitation of conventional closed-loop control is broken through, and it is ensured that the pressure is stabilized within extremely high precision. The dynamic pre-stabilization mode not only shortens the pressure establishment time, but also provides a stable environmental basis for formal testing, directly improves the accuracy of flow measurement, enables the result to reflect the real performance of the conduit better, adapts to the quick response of different pressure requirements, reduces unnecessary waiting time, and improves the overall testing efficiency.

The application discloses a kind of video decoder board automatic aging test methods, by configuring RTSP camera output standard test signal, build decoding display link, using programmable power supply controller unified power supply and simulates power fluctuation, to PC end program realizes power control, data acquisition and analysis.System supports custom test duration and on-off cycle, can be unattended complete long time aging test, real-time acquisition and storage decoding stability, image quality and power consumption data, automatically generate visual chart and multi-format test report, according to preset threshold value automatically determine test result.At the same time have abnormal automatic identification, three alarms and fault power protection function, support breakpoint continue measurement.The method effectively improves the degree of automation and efficiency of aging test, reduces manual intervention, data precision is high, applicable to video decoder batch production quality inspection and research and development performance verification.