138 results about "Test duration" patented technology

A cooling-tower performance testing device, comprising: a first barrier member (11) arranged on a water output pipeline of an RIS-RHR heat exchanger (21); a heat-source obtaining assembly (12), which has a first end mechanically connected between the first barrier member (11) and a water outlet of the RIS-RHR heat exchanger (21) and a second end mechanically connected to an EHR gate valve (31); and a second barrier member (13), which is arranged on a pipeline connected between a water outlet of a PTR heat exchanger (51) and a hot-side water inlet of an ECS heat exchanger (41). The device enables an ECS to obtain a stable heat source from one loop, and supplies heat to the ECS heat exchanger (41), and a heat source is thus provided for carrying out a cooling-tower performance test, without temporarily laying a large number of pipelines, thereby omitting a large amount of pipeline disassembly and site restoration work, and also effectively shortening a test duration and reducing test costs. Further provided is a cooling-tower performance testing method.

The embodiment of the invention discloses a thermal insulation performance testing method, device and equipment and a medium. The method comprises the following steps: acquiring the current environment chamber temperature, and adjusting the initial position temperature of each candidate test position in a to-be-tested cab according to the current environment chamber temperature to obtain the candidate position temperature; when all the candidate position temperatures are the same as the current environment chamber temperature, the candidate position temperatures are updated based on the indoor heat supply amount in the air conditioner running state, and the reference position temperature is obtained; when the reference position temperature at the benchmark test position is the indoor temperature peak value, obtaining the reference position temperature at each candidate test position in the cab to be tested, and obtaining the target position temperature at each candidate test position after the preset test duration in the state that the air conditioner is turned off; and according to the reference position temperature, the target position temperature and the preset test duration, determining a thermal insulation test result of the to-be-tested cab. And the accuracy of testing the thermal insulation performance of the commercial vehicle cab is improved.

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 invention relates to the technical field of industrial data processing, in particular to a capacitive touch screen test data management method based on an MES (Manufacturing Execution System), which comprises the following steps: acquiring a capacitive touch screen to be detected and performing a first test mode, wherein the first test mode tests the touch screen according to the first test temperature, the second test temperature, the test duration, the test period and the specified operation set; obtaining first test mode data after all the touch screens complete the first test mode; analyzing the data to obtain first abnormal data of the touch screen, wherein the first abnormal data comprises abnormal temperature and abnormal test operation of the touch screen; performing test optimization on the touch screen according to the abnormal temperature and the abnormal test operation, and performing a second test mode; obtaining second test mode data after all the touch screens complete the second test mode; analyzing the second test mode data to obtain second abnormal data; and according to the first abnormal data and the second abnormal data, judging whether the to-be-detected capacitive touch screen has a hardware fault or not.

The invention discloses a server testing method and device, electronic equipment and a storage medium, and relates to the technical field of computers. The server test method comprises the following steps: pre-storing configuration information of a to-be-tested server in a current test cluster and a test resource demand of a to-be-tested case; and selecting the to-be-tested server suitable for executing the to-be-tested case based on the test resource demand of the to-be-tested case. Meanwhile, obtaining the test duration of the to-be-tested cases, selecting a plurality of mutually compatible to-be-tested cases as parallel test cases based on the obtained test duration, and scheduling the parallel test cases to a to-be-tested server meeting the test requirements of the parallel test cases, so as to carry out the parallel test of the parallel test cases. Therefore, the technical problem that the server testing efficiency is not ideal can be solved, and the technical effect of improving the server testing efficiency and reliability is achieved.

A method for controlling an operating tank system (100) is proposed. The tank system (100) comprises a plurality of tanks (12) and a line system (39). Each tank (12) is provided with a valve (13). The tank system (100) supplies at least one consumer (40) with a fluid. The method comprises the following steps: a) supplying the at least one consumer (40) from all tanks (12) of the plurality of tanks (12), b) closing all valves (13) of the plurality of tanks (12) for a defined test duration, c) opening a valve (13) of a first tank (12) of the plurality of tanks (12) and detecting an expected pressure increase by means of the line system (39), d) supplying the consumer (40) from the first tank, e) Upon reaching a predefined target pressure, opening a valve (13) of a second tank (12) of the plurality of tanks (12) and detecting an expected pressure increase by means of the line system (39), f) supplying the consumer (40) from the second tank (12), g) Repeating steps e) and f) successively with the respective further tanks (12), and wherein step g) is carried out until all valves (13) of all tanks (12) of the plurality of tanks (12) have been opened, so that the at least one consumer (40) is supplied from all tanks (12) of the plurality of tanks (12).

The invention provides a nuclear power plant primary loop leakage rate calculation method and system, and the method comprises the steps: controlling a cooling medium to circularly flow in a test pipeline under a first preset pressure, and detecting whether the pressure boundary of a primary loop leaks or not; when the pressure boundary of the primary loop does not leak, controlling the circulating flow test duration of the cooling medium in the test pipeline under a second preset pressure, detecting whether recognizable leakage exists in the primary loop, and obtaining a recognizable leakage rate, a side leakage rate outside the pressure boundary of the primary loop and test data; calculating the overall leakage rate of the loop according to the test data and the test duration; and calculating the total leakage rate and the unidentifiable leakage of the loop according to the overall leakage rate, the identifiable leakage rate and the side leakage rate. According to the invention, when the auxiliary system of the unit under construction of the nuclear power plant is not completed, a set of test water tank can be connected between the discharge pipeline interface and the charge pipeline interface of the loop.

The utility model discloses an intelligent card test system. The system comprises a main control processor, a first radio frequency induction module, a second radio frequency induction module, a time accumulator, a counter and a power supply module, the first radio frequency induction module is used for uninterruptedly reading a test card, acquiring a first light emitting state of an LED lamp of the test card, and outputting a first electric signal to the time accumulator according to the first light emitting state; the time accumulator is used for accumulatively receiving the first electric signal so as to determine the accumulative test time length of the test card; the second radio frequency induction module is used for periodically reading the test card according to a preset time interval, acquiring a second light-emitting state of the LED lamp of the test card, and outputting a second electric signal to the counter according to the second light-emitting state; and the counter is used for accumulating the received second electric signal so as to determine the accumulated test times of the test card, thereby realizing the durability test of the product added with the LED optical signal feedback in the intelligent card.

The application provides a test scheme for checking data retention performance of NOR type Flash memory, focuses on the influence of erase-write cycles on the data retention performance, unifies the erase-write cycle number of the Flash memory test, stipulates clear temperature selection criteria, provides a reference for the Flash memory related test, and comprises the following steps: step one: determining the basic test algorithm of the NOR type Flash memory as the Checkerboard algorithm from the algorithm design complexity and the fault coverage; step two: improving the Checkerboard algorithm process and determining the data retention fault determination step; step three: carrying out a pre-experiment to determine the data retention performance test temperature, erase-write number and sample number of the NOR type Flash memory; step four: determining the erase-write number of the data retention test at normal temperature and the sample number under each erase-write number; step five: determining the test pattern, failure criterion, test duration and test cycle; step six: carrying out the data retention test combined with the erase-write cycle based on the non-replacement timing truncation test; and step seven: test data processing, fitting the average failure time under different erase-write numbers with the erase-write number to obtain the corresponding relationship between the average failure time and the erase-write number.

The invention relates to the field of nuclear power plant rod position measurement system adjustment and calibration, in particular to a rod position measurement and parameter adjustment and calibration method and system and a medium, and the method comprises the steps: respectively adjusting the induction voltage of each secondary coil to be a preset calibration induction voltage according to a rod position detector and a secondary coil group; acquiring a bump peak voltage and a small trough voltage of each secondary coil of the corresponding rod position detector in the full-stroke movement process of the control rod; and for each secondary coil group, calculating an optimal comparator threshold voltage and an optimal hysteresis voltage range according to the bump peak voltage and the small trough voltage of the corresponding secondary coil, and taking the optimal comparator threshold voltage and the optimal hysteresis voltage range as the threshold voltage and the hysteresis voltage range of the threshold comparator. Compared with a traditional method, the method has the advantages that the number of trial times of blind parameter adjustment is greatly reduced, the static test duration is shortened, the adjustment efficiency of a rod position measurement system is remarkably improved while the position indication precision of the control rod is guaranteed, and the operation and maintenance cost of a nuclear power unit is saved.

The present disclosure provides a time sequence control method for a dry biochemical analyzer, a control apparatus, and a storage medium. The method comprises: dividing one biochemical test into k time sequence control cycles each in the form of nA+B, wherein each time sequence control cycle consists of two parts: nA representing n light measurement preparation parts, and B representing one light measurement part, and multiple reagent card tests are performed in each time sequence control cycle; in a light measurement preparation part of a current time sequence control cycle, controlling a card feeding device to perform card feeding actions required for light measurement on n reagent cards in the current time sequence control cycle, and controlling a sample loading device to perform sample loading actions required for light measurement on n reagent cards in the previous time sequence control cycle; and according to a preset light measurement action required by a biochemical test method in each time sequence control cycle, controlling, in a light measurement part of each time sequence control cycle, a light measurement mechanism to perform light measurement actions on all reagent cards in a reagent card reaction device. The total test duration of multiple items or multiple reagent cards is shortened, thereby improving the test efficiency.

A method for measuring a liquid flow property is provided. The method includes controlling a droplet to drop from a preset height to a substrate, acquiring a droplet density on the substrate, a maximum radius of a tip of the droplet, a real-time height of the tip, an initial height of the tip, and a testing duration from a beginning of the droplet to fall on the substrate to an end of a test, determining that influencing factors of the tip of the droplet comprise inertial force and viscous force, and the inertial force is equal to the viscous force, and calculating a calculated viscosity of the droplet, wherein the calculated viscosity of the droplet is related to a first calculation coefficient, the droplet density, the maximum radius of the tip and the initial height of the tip, and the first calculation coefficient is equal to a ratio of a tip height change value to the testing duration, wherein the tip height change value is a difference between the initial height of the tip and the real-time height of the tip.

The present invention belongs to the technical field of autonomous driving testing, and specifically relates to a multi-platform linkage testing method for autonomous driving simulation based on offline task allocation. It includes: First, mathematically express the offline task allocation of multi-platform linkage testing, and clarify the definitions of key elements, including the definition of test duration elements and the definition of test load elements; Second, establish test task allocation constraints, including test accuracy constraints, test priority constraints, and test load constraints; Third, use the particle swarm algorithm to solve the task allocation results, so as to obtain the specific tasks of different test platforms. The present invention realizes the linkage testing of multiple simulation test platforms through test task allocation. This method can solve the linkage testing method when there are multiple test platforms in the autonomous driving system by setting test process allocation constraints and solving; since the test platform accuracy is considered simultaneously during the task allocation process, and the testing capabilities of multiple platforms can be utilized, the testing efficiency can be improved while ensuring the testing accuracy.

The present invention relates to the field of server aging testing, and specifically discloses a server aging program monitoring method, device, terminal and storage medium, which maintain a basic database table to store basic test information and corresponding basic test duration; create a test record database table to record basic test information and the start test time and end test time of the corresponding test; after the test is started, the data of the current test in the test record database table is periodically obtained to query whether the data of the current test has an end test time; if the data of the current test has an end test time, the current test is normal; if the end test time in the data of the current test is empty, the tested duration is calculated based on the start test time of the current test, and it is determined whether the tested duration is greater than N times the corresponding basic test duration in the basic database table. If so, the current test is marked as abnormal. The present invention can issue an alarm if the predetermined time is exceeded, reminding staff to pay attention.

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.

The utility model discloses a sealing test device for a photovoltaic cell string, which comprises a transparent cover plate, a transparent bottom plate and two first clamping strips, the transparent cover plate and the transparent bottom plate are oppositely arranged, the transparent bottom plate is provided with a mounting groove for mounting the cell string, and the cell string comprises at least two cell pieces which are connected in sequence; each first clamping strip comprises an upper plate, a connecting plate and a lower plate which are connected in sequence, the upper plate, the connecting plate and the lower plate jointly define a first clamping groove, the transparent cover plate and the transparent bottom plate are clamped in the first clamping groove, and the two first clamping strips are oppositely arranged on the two sides of the transparent cover plate; an annular sealing piece is arranged between the transparent cover plate and the transparent bottom plate, and the projection of the mounting groove is located on the inner side of the projection of the annular sealing piece in the direction perpendicular to the upper surface of the transparent bottom plate, so that the test duration of the battery string can be shortened, and the test efficiency of the battery string is improved.

The invention discloses a method for predicting the corrosion grade of a vehicle part in a corrosion test. The corrosion test data of the vehicle part is combined with a BP neural network method for the first time. According to the method, on the basis of historical data and early-stage test data, in combination with the material type, the surface protection type and the test duration of the target part and the corrosion level of the previous part cycle, the corrosion levels of all subsequent cycles can be rapidly predicted. The prediction method comprises the following steps: S1, data acquisition; s2, data preprocessing; s3, constructing a BP neural network; s4, performing model training optimization; and S5, predicting and outputting. By means of the method, the corrosion test period can be remarkably shortened, and high-precision prediction support is provided for corrosion prevention process optimization and test scheme dynamic adjustment.

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 a method for controlling a tank system (100) in operation. The tank system has a plurality of tanks (12), each of which comprises a valve (13), and a line system (39). The tank system supplies at least one load (40) with a fluid, and the method has the following steps: a) supplying the at least one load from all of the tanks, b) closing all of the valves (13) for a defined test duration, c) opening the valve of a first tank and detecting an expected pressure increase by means of the line system, d) supplying the load from the first tank, e) when a defined target pressure is reached, opening the valve of a second tank and detecting an expected pressure increase by means of the line system, f) supplying the load from the second tank, and g) repeating steps e) and f) one after the other for each of the other tanks until all of the valves have been opened so that the at least one load is supplied from all of the tanks.

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.

The invention relates to a method for controlling an electrical protection device. Each switching module is controlled (S118) to enter an open configuration when an electrical fault of the short circuit type is detected during step b) and when the trip energy is greater than or equal to a trip energy threshold in step d). Each switching module is controlled (S122) to enter an on configuration when a re-closing time of a given circuit breaker has elapsed. If the circuit breaker is connected immediately upstream of a given circuit breaker, the test duration (Tt) has not elapsed, and a short circuit is detected, performing steps c) to f) again; and controlling (S138) each switching module in an open configuration if no circuit breaker is connected immediately upstream of a given circuit breaker, a test duration (Tt) has not elapsed, and a short circuit is detected.

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.