603 results about "Load testing" patented technology

The invention provides a frequency converter dynamic fault diagnosis method and system based on a multi-brand load test platform. According to the method, multiple real-time operation parameter sets are acquired, the amplitude attenuation threshold and the frequency fluctuation interval of a voltage waveform fragment are dynamically adjusted according to a load mode configuration file, the dynamic voltage reference parameter corresponding to the current load mode is generated, and then the actual waveform and an expected current phase curve are compared frame by frame; the method comprises the following steps: firstly, calculating to obtain a phase offset, then constructing a multi-dimensional operation characteristic spectrum, then carrying out time sequence cross validation on a sudden change time node of a power factor jump trajectory and an abnormal waveform position in a harmonic distortion incidence matrix, outputting an abnormal mode code, and finally, matching a load adaptation grade constraint condition to generate a diagnosis report; according to the technical scheme provided by the invention, the fault diagnosis precision and the cross-brand system adaptation capability in a complex load scene are remarkably improved, and the problem of misjudgment of a single brand threshold rule in a multi-device scene is effectively solved.

The invention discloses a high-availability testing method and system for task scheduling of a computing power host management platform, belongs to the technical field of high-availability testing of computers, and aims to solve the technical problems that in the prior art, high-concurrency scene testing coverage rate is insufficient, cross-domain scheduling, failover and self-healing scene verification are imperfect, and testing efficiency is high. According to the technical scheme, the method structurally comprises the steps of hybrid load testing, wherein the elastic capacity expansion and contraction capacity and the performance stability of a system are verified by simulating a long-time stable load and burst flow scene; cross-regional intelligent scheduling: tasks are dynamically scheduled based on cost, time delay and regional strategies, and optimal resource allocation and service continuity are ensured; resource fault migration recovery: simulating node-level or region-level faults, and verifying the automatic detection, migration and recovery capabilities of the system; monitoring and data collection: collecting affairs, resources and stability indexes in real time, and providing multi-dimensional data support for verification; and analysis and optimization: identifying a bottleneck based on test data to generate optimization suggestions, and continuously improving the high availability of the system.

The invention discloses a battery capacity performance testing method and device and a storage medium, and relates to the technical field of battery capacity performance testing. By constructing a dynamic load model and a multi-load test protocol and combining a high-precision data acquisition and filtering algorithm, adaptive data analysis and a machine learning regression model, the problems of difficulty in balancing precision and efficiency, large data acquisition error, fixed test protocol and the like in the traditional battery test are solved; by dynamically adjusting test parameters and environmental conditions, complex working conditions of the battery in actual use are accurately simulated, meanwhile, dynamic updating and optimization of a test protocol are achieved, the test precision, the data reliability and the test efficiency are remarkably improved, and a comprehensive, efficient and high-adaptability solution is provided for battery performance evaluation and health management.

The invention relates to the technical field of data processing, and provides a dynamic load test method and device for a chiplet, and the method comprises the steps: collecting transient heat flux data generated by the chiplet in a multi-frequency load switching process to generate a thermal dynamic behavior map, calculating a thermal coupling interference index map according to the thermal dynamic behavior map, and carrying out the testing of the dynamic load of the chiplet according to the thermal coupling interference index map. And inputting the thermal coupling interference index diagram into a preset thermal stability mapping matrix, and generating a small chip dynamic load behavior evaluation parameter group. By inputting the transient heat flux data into the preset thermal stability mapping matrix to generate the small chip dynamic load behavior evaluation parameter group, the thermal stability and the overall performance of the small chip are improved, and the problem that in practical application, the prior art depends on single thermal monitoring data, and thus the reliability of the small chip is improved is solved. And when the load switching frequency is relatively high or the load disturbance is relatively large, the potential thermal coupling interference and the influence of the potential thermal coupling interference on the system performance cannot be accurately identified.

The invention discloses a dynamic load simulation test method and device for a warping winch, and relates to the technical field of warping winch simulation tests.The method comprises the steps that historical working condition data associated with a target working scene of the warping winch is retrieved, and a typical load working condition set is analyzed and constructed; obtaining design working condition information, and constructing a design load intensity sequence based on a mapping rule; traversing the intensity sequence, and performing matching in the typical working condition set to generate an initial test sequence; random disturbance is applied to N typical load working condition sections, iterative optimization is carried out through an optimization algorithm, and an iterative test sequence is obtained; and smoothing the load switching points of the sequence, inputting the load switching points to a simulation test device, and executing a dynamic load test. Therefore, the technical effects of diversification of test scenes, simplification of parameter setting, improvement of the matching degree with actual working conditions and enhancement of test accuracy are achieved.

The invention discloses a heat dissipation detection system and method of a liquid cooling server, electronic equipment and a storage medium, and relates to the technical field of electric digital data processing. The heat dissipation effect of the liquid cooling server is evaluated through induction data generated by the strategy load simulation module, related evaluation content is displayed after evaluation, and the problems that in the related technology, extreme scenes are difficult to cover, the adaptability of heat dissipation design is affected, induction data under dynamic load changes are difficult to capture in real time, and the efficiency is high are solved. The technical problems that time delay errors exist in evaluation results, high-load testing easily accelerates equipment aging and even possibly causes cooling liquid leakage and other potential safety hazards exist are solved, full coverage of load scenes is achieved, reliability of detection results is guaranteed, real service flow is replaced, the testing period can be shortened, hardware loss is reduced, and application and popularization are facilitated.

The invention discloses a bolt guarantee load testing method based on ultrasonic waves, which comprises the following steps: pasting a ceramic patch on the head of a bolt, and measuring the length change of the bolt before and after loading by using the ultrasonic waves to judge whether the bolt meets the guarantee load requirement, and comprises the following steps: firstly, measuring the initial length L0 of the bolt; a guarantee load is applied according to the GB / T3098.1 standard and kept for 15 seconds, the length L1 of the bolt is measured again after unloading, and if the difference value of L1 and L0 is within the range of + / -5 microns, the bolt is judged to be qualified; otherwise, increasing 3% of the load for retesting; according to the method, the contact error of traditional mechanical measurement is avoided, the measurement precision is improved, and a more accurate and convenient technical means is provided for quality control of high-requirement fasteners.

The invention relates to the technical field of bolt detection, and discloses a bolt combination load testing device and method.The bolt combination load testing device comprises a base, a support is fixed to the base, a torsion detection assembly is arranged in the base, and a tension assembly is installed on the support; the torsion detection assembly comprises a torsion detection block and a worm wheel rotating disc, an auxiliary fastening part and at least two limiting sliding plates are movably arranged in the torsion detection block, and the limiting sliding plates are matched with the worm wheel rotating disc. Under the joint influence of the tension load and the torsion load, the torque performance of the bolt in different tension states can be analyzed by recording the tension and torque data, so that the performance of the bolt under the combined load is evaluated, the stress condition under the actual working condition can be more accurately simulated, and the problem that the bolt cannot be accurately tested during independent detection is effectively avoided. Errors may occur in detection results due to some factors.

The invention discloses an automatic multi-channel solid-state relay testing device, and belongs to the technical field of electrical element detection and intelligent manufacturing testing. The device comprises an insulation and voltage resistance test module, a direct current function test module, an alternating current function test module, an automatic load test module and an MES execution management module. The device has the advantages of complete testing functions, high precision, high automation degree, wide adaptation range and the like, and is suitable for delivery inspection and life verification of various solid-state relays.

The invention discloses a distributed load test system and method. The system comprises a user operation interface which is configured to receive a pressure measurement task and generate a task request based on the pressure measurement task; the cluster scheduling module is configured to distribute a test task corresponding to the task request to a plurality of load-balanced working nodes of the distributed load test platform based on a task concurrency demand; and the test execution management module is configured to execute the distributed test tasks by utilizing the working nodes to generate test data. The technical problem that the prior art has defects in the aspects of cluster scheduling, centralized management, test result processing, real-time monitoring and the like is solved.

The invention relates to the technical field of bridge testing, and discloses a bridge beam plate load testing device for road and bridge construction, which comprises an underframe frame and a testing frame, the underframe frame and the testing frame are connected through at least four shock absorbers, the testing frame is internally provided with a bearing assembly for bearing a to-be-tested bridge beam plate, and the bearing assembly is connected with the shock absorbers. A main sensor is arranged above the bearing assembly, and a main testing mechanism used for carrying out load testing on the bridge beam plate during bearing is arranged at the top of the bottom frame. According to the bridge beam plate load testing device for road and bridge construction, the two testing pieces are driven by the driving piece, the two testing pieces can be matched with the load piece to carry out vertical load testing work on a bridge beam plate, and the two testing pieces can be matched with the auxiliary testing mechanism to carry out lateral load testing work on the bridge beam plate; load testing work in multiple aspects is achieved, and the functionality and practicability of the load testing device are further improved.

The invention discloses a load simulation test device for a permanent magnet motor, which belongs to the technical field of motor testing and comprises a test board, a mounting table is mounted on the test board, the permanent magnet motor is mounted on the mounting table, and a load test box is mounted at the top, close to the permanent magnet motor, of the test board. A controller is installed at the top, close to the load test box, of the test board, an air cylinder is arranged to drive a movable rod to move, and when the movable rod moves, an end cover plate can be driven to rotate through cooperation of a longitudinal limiting groove, a spiral limiting groove, a fourth gear, a second tooth groove, a limiting block and other parts; when the end cover plate rotates, a guide rod can be driven to move through cooperation of an inclined extrusion groove and a sliding groove, when the guide rod moves, a first magnet can be driven to be close to or away from a second magnet to adjust the loading force of the permanent magnet motor, and the loading force of the permanent magnet motor can be conveniently adjusted according to needs.

The invention provides a passive device testing method, device and equipment and a readable storage medium. The passive device testing method is applied to the passive device testing device and used for testing transmission parameters of a passive device, the passive device testing device comprises a testing alternating current source and a testing load, and the testing alternating current source is used for transmitting testing alternating current electric energy to the testing load through the passive device. The passive device test method comprises the following steps: controlling to conduct a transmission path between a test alternating current source and a passive device, controlling to disconnect a transmission path between a test load and the passive device, and obtaining a first group of test parameters of the passive device; and controlling to disconnect a transmission path between the test AC source and the passive device, controlling to connect a transmission path between the test load and the passive device, and obtaining a second group of test parameters of the passive device. And determining transmission parameters of the passive device at least according to the first group of test parameters and the second group of test parameters. According to the invention, the transmission parameters of the unknown passive device of the internal circuit can be obtained.

The invention relates to the technical field of pile foundation testing, in particular to a test pile load testing method and a loading structure, and the method comprises the following steps: testing preparation: establishing a real-time data acquisition link; graded loading: graded loading: collecting pile top settlement-time sequence data in real time at the load holding stage of the current load stage; self-adaptive load holding judgment: calculating a settlement convergence trend based on settlement data acquired in real time under the current load level; if the prediction model judges that the settlement is fully converged under the current load level, directly entering the next load level without waiting for the settlement rate to be reduced to a fixed threshold value; if the prediction shows that the settlement cannot be converged or tends to be damaged, triggering damage early warning and turning to a damage treatment flow; continuously detecting, namely repeating the step of graded loading and the step of self-adaptive load holding judgment until a preset maximum test load is reached or damage is triggered; and evaluation: evaluating the bearing capacity of the pile foundation. The test efficiency is improved, and the intelligent degree is improved.

The invention discloses a motor testing device for a robot, and relates to the technical field of motor testing for robots, and the motor testing device comprises a control cabinet, a testing platform, a locking device, a torque rotating speed sensor, a shaking simulation part, a load testing group and an adjusting part. Efficient detection of the motor for the robot with the body is achieved through cooperation of the shaking simulation component, the load testing assembly and the adjusting component, the shaking simulation component drives the motor to shake, the amplitude is changed under the action of the adjusting component, the stability of the motor is detected by simulating the bumping state, and the load testing assembly applies variable friction resistance. Loads are increased or decreased through the adjusting part, the actual use condition is flexibly simulated, the adjusting part can synchronously or separately adjust the shaking amplitude and the resistance application size, the complex environment is accurately simulated, shaking and load testing are fused, the testing convenience and accuracy are improved, the motor quality is efficiently controlled, and potential safety hazards of the motor for the robot are found in advance.

The invention discloses a multi-mode fusion power semiconductor module full-automatic detection system and method, relates to the technical field of semiconductor testing, constructs a multi-topology loading module, and realizes mechanical load testing under a frequency converter working condition, electrical load simulation under a grid-connected working condition and static electrical parameter testing. And covering dynamic and static performance detection of the module in a multi-application environment. A multi-source temperature monitoring and weighted fusion technology is introduced, and precise regulation and control of local junction temperature, surface temperature and radiator temperature of the module are realized. Dynamic switch characteristics are extracted from various collected data through wavelet transformation, and module failure probability prediction is completed in combination with a Weibull life model. Automation of whole-process data analysis and detection report generation is achieved, and the test efficiency and the evaluation intelligent level are improved. The method is suitable for multi-scene performance evaluation and reliability analysis of the power semiconductor module.

A time synchronization method for a wireless load testing system includes two stages: a stage of constructing a wireless sensor network system and a stage of suppressing communication delay to achieve precise network-wide time synchronization. The method employs a relative skew estimator based on Bayesian estimation theory to suppress the effect of time delay in wireless communication, thereby enhancing the estimation accuracy of the relative skew estimator while reducing memory requirements. By applying the average consensus protocol, high-precision network-wide time synchronization is achieved, and the overall method enhances the robustness to time delay and has higher accuracy. The method solves the problems of reduced time synchronization accuracy and time synchronization failure of partial sub-nodes due to time delay of the traditional time synchronization algorithms in complex spatial layout.

The utility model belongs to the technical field of electric push rod testing equipment, and particularly discloses an electric push rod load testing device which comprises a rack, a telescopic driving part and a pair of fixing seats are arranged on the rack, the pair of fixing seats are arranged at intervals in the telescopic direction of the telescopic driving part, and a guide rod is arranged between the pair of fixing seats. A sliding head is arranged at the tail end of an output shaft of the telescopic driving part, located between the pair of fixing bases and slidably arranged on the guide rod in a sleeving mode, a pressure sensor is arranged on the end face of the sliding head, and a clamping base used for clamping the tail end of a push rod shaft of the electric push rod is coaxially connected to the end face, away from the sliding head, of the pressure sensor through a connecting part. A receding hole for the clamping base to penetrate out is formed in the fixing base away from the telescopic driving piece. According to the utility model, the pressure sensor extends and retracts along with the extension and retraction of the telescopic driving piece, so that the thrust and tension required by the electric push rod of the object to be tested are obtained, and the efficient, accurate and automatic load test of the electric push rod of the object to be tested is realized.

The invention discloses a chip packaging test production line performance control method based on reinforcement learning, and relates to the technical field of quantum regulation and control, and the method comprises the steps: generating a joint state vector; inputting the joint state vector into a pre-trained reinforcement learning strategy model, and when a high-risk state is detected, triggering a causal intervention mark, and generating a frequency band reservation instruction, a forced forbidden instruction set and a quantum regulation and control instruction set; transmitting a frequency band reservation instruction, a forcible forbidding instruction set and a quantum regulation and control instruction set to a radio frequency test machine and chip packaging equipment through a communication interface, distributing a low-load test channel, forbidding a high-risk channel and adjusting temperature and pressure; and collecting test data of the chip function test, verifying the compliance of the test data, and generating a qualification report. According to the method, intelligent sensing and causal reasoning of the running state of the chip packaging test production line are realized through the reinforcement learning strategy model and the causal rule map.

The invention discloses a multi-device circuit connector for primary and secondary load testing, which belongs to the technical field of circuit connectors and comprises a secondary side connecting seat and a device connecting seat, and multiple groups of secondary side connecting columns and multiple groups of device connecting columns are respectively arranged in the secondary side connecting seat and the device connecting seat. Through the arrangement of the polarity conversion assembly, the direction of a magnetic field formed on the periphery of the current transformer can be continuously changed according to the change of the current direction on a secondary side connecting column in a secondary side circuit of the current transformer; the direction change of the secondary side current of the current transformer is converted into the voltage change condition on the arc-shaped guide plate, the polarity of a secondary current loop can be conveniently determined, meanwhile, the arrangement of the dismounting protection assembly is adopted, and the two short-circuit semicircular plates can be in butt joint with each other through the telescopic rod during dismounting; therefore, the secondary side of the current transformer is continuously in a short-circuit state after the test is completed, and the use safety of the current transformer in the whole test process is ensured.

For each of a number of test commands of a test script for browser-based load testing of a web application hosted by a server device communicatively connected to the test device over a network, the test command is executed within a browser instance running on the test device and simulating usage of the web application by a user. In response to determining that the test command that has been executed is a browser operation command, that the test command executes for a minimum length of time is ensured in a throttling test mode in which the web application is tested via the browser instance.

The invention discloses an interchangeability power consumption on-load test system for a distributed power supply access unit, which comprises a tested object, a main control system and a detection unit, and is characterized in that a tested distributed power supply access unit body is connected with a standard virtual communication module and a power supply on-load test tool; the power supply module is used for providing a detected power supply signal, a control interface signal and a communication data interaction message; the power supply on-load test tool is connected with the load switching unit and the ripple detection unit to provide a detected power supply signal; the tested communication module is connected with the standard virtual distributed power supply access unit body and the power consumption test unit to provide a tested power supply signal, a control interface signal and a communication data interaction message; and the main control system is connected with the detection unit and is responsible for initiation of the detection process of the tested distributed power supply access unit body and the tested communication module, flow control, data interaction and output of a test result.

The invention relates to a chip testing system, device and method. The chip test system comprises a server and an embedded test device which are in communication connection. The server is configured to store a test program and load the stored test program to the embedded test device; the embedded test device is configured to run a test program so as to test one or more chips to be tested connected with the embedded test device, and the test program simultaneously tests the computing power load and the memory pressure of the chips to be tested in parallel when running. According to the chip testing system, device and method, the testing efficiency can be remarkably improved, and the real performance of the chip in an actual service scene can be accurately reflected.

The invention discloses a dynamic load test method and system for a short message communication system, and relates to a data processing technology, and the method comprises the steps: dividing a data message into a plurality of priority categories in advance; acquiring data messages in a plurality of historical emergency scenes, and classifying the data messages according to priority categories; performing clock alignment on the classified data messages of each secondary node, and selecting a data message sample of a typical time period; extracting the message characteristics of each data message in any typical time period, endowing the corresponding message characteristics with weights according to the priorities of the data messages, and constructing a dynamic load generator by using LSTM (Long Short Term Memory); extracting message features in the current emergency scene and inputting the message features into the dynamic load generator; and performing comparison based on the output of the dynamic load generator and the load condition of the current communication system so as to complete the dynamic load test. The method is used for dynamically allocating the channel resources according to the dynamic load test result and exposing the potential resource bottleneck of the system in advance.

The invention provides a method and system for testing and evaluating the adaptation degree of domestic hardware of a power grid system, and the method specifically comprises the following steps: S1, obtaining the basic information of system hardware, and obtaining a system hardware performance index, a system application performance index and a system application stability performance index through an automatic test; the system application performance indexes comprise performance indexes of eight types of applications and database applications in the power grid system; s2, calculating a system hardware performance score, a system application performance score and a system application stability score according to the system hardware basic information collected in S1 and each performance index, and obtaining a comprehensive performance score; and S3, generating an adaptation degree test report of the power grid system to the current hardware based on each performance index and each score. According to the method, the whole process from hardware basic parameter collection to high-load testing and stability and functional evaluation is covered, and comprehensive testing and evaluation of the adaptation degree of domestic hardware in specific platforms such as a power grid system are achieved.

The invention provides a load testing device after production of a superposed beam plate, and relates to the technical field of load testing, the load testing device comprises a supporting base, and a mounting base is fixedly mounted in the middle of the left side of the supporting base on the left side; an adjusting plate is arranged at the top of the adjusting sliding rail; the top of the supporting base is sleeved with a testing sliding seat in a sliding mode. According to the technical scheme, a plurality of sensors can be synchronously fixed or unfixed under the action of a related mechanism by manually rotating the control screw rod, so that the maintenance work is greatly facilitated, when one or more of the plurality of sensors break down, a worker can quickly and easily disassemble and replace the sensors, and the working efficiency is greatly improved. The problems that in order to ensure the testing precision, sensors are often densely distributed on a supporting piece of a testing device to collect data, however, if the multi-sensor configuration is damaged in long-term use, the sensors need to be disassembled and replaced one by one, the steps are tedious, and the maintenance efficiency is low are solved.

The invention discloses a multi-station collaborative operation robot group scheduling control method and system, and relates to the technical field of industrial robot control, and the method comprises the steps: obtaining and fusing multi-station vision and point cloud data, and determining the task pose information of each station of a robot group; according to the allocation task, the planning path and the registration divergence rollback re-collection data, obtaining an operation allocation result; then, correcting the pose by sensing the filtering binding force-displacement relation through near-field operation force; analyzing and identifying abnormity of the low-load test binding force data trend in operation; a scheduling control result is generated in combination with task feedback adjustment parameters; and finally, frequency optimization is constrained by an environment interference threshold value, and a multi-station cooperative scheduling scheme of the swarm robots is obtained. According to the method, the technical problems of insufficient pose precision, serious equipment interference and abnormal response lag of the robot group in multi-station operation are solved, and the technical effects of accurate pose control, timely abnormal identification and efficient cooperative scheduling of the multi-station robot group are achieved.

The invention relates to the technical field of automobile testing equipment, and discloses a new energy automobile chassis load testing device which comprises a testing table, a ramp is connected to one side of the surface of the testing table, electric sliding rails are symmetrically installed on the two sides of the testing table, and walking frames are slidably arranged in the electric sliding rails. Telescopic rods are arranged on the two sides, close to each other, of the walking frame, pressure detection mechanisms are arranged at the tops of the two sides of each telescopic rod correspondingly, each pressure detection mechanism comprises a mounting plate, the mounting plates are fixedly connected with the two sides of the corresponding telescopic rod correspondingly, and hanging rods are fixedly mounted on the two sides of the center of the bottom of each mounting plate; the bottom of the hanging rod is hinged to a swing arm, an extension arm is movably installed in the swing arm, and the sides, close to each other, of the extension arm are rotationally connected with a gravity roller, the driving test of various different items can be simulated, continuous running is achieved, the integration degree is high, and the test time is highly saved.

The invention provides a rock mass section area measuring device in a point load test, and relates to the technical field of geotechnical engineering and engineering geology. Comprising an external model framework, a profiling support mechanism, a pressure sensing positioning unit and a data acquisition and analysis system, the profiling supporting mechanism and the pressure sensing positioning unit are fixed in the integral external frame; the profiling supporting mechanism is clamped on the upper portion in a frame through the difference of the inner diameter and the outer diameter of the external model frame to form mechanical interlocking, and the lower portion of the profiling supporting mechanism is arranged above the pressure sensing positioning unit through a reserved positioning hole. The pressure sensing and positioning unit is a distributed array pressure sensor combination, and the data acquisition and analysis system is connected with the pressure sensing and positioning unit to reflect monitoring data. Pressure distribution data of a rock contact area are collected in real time through the pressure sensing and positioning unit, and the data collection and analysis system is combined with signal processing, shape recognition and 3D modeling technologies to achieve rock shape analysis and visual visualization and calculate the sectional area of the rock contact area in real time.

The utility model discloses a metal material constant load testing device suitable for a hydrogen environment, which comprises a high-pressure gas storage bin, the high-pressure gas storage bin is hermetically connected with an upper bin cover and a lower bin cover, the upper bin cover is provided with a gas inlet pipeline, the lower bin cover is provided with a gas outlet pipeline, the high-pressure gas storage bin is filled with hydrogen, the upper bin cover is provided with an upper loading rod, and the lower bin cover is provided with a lower loading rod. The upper end of an upper loading rod is connected with a loading head, the lower end of the loading rod extends into the high-pressure gas storage bin, a load sensor is installed on the upper loading rod, a lower loading rod is arranged on the lower bin cover, the upper end of the lower loading rod extends into the high-pressure gas storage bin, the lower end of the lower loading rod is connected with a base, the lower end of the upper loading rod is provided with an upper connector, and the upper connector is connected with a lower connector. A lower connector is arranged at the upper end of the lower loading rod, a constant-load sample is connected between the upper connector and the lower connector, an extensometer is mounted on the constant-load sample, and a temperature sensor and a pressure sensor are mounted in the high-pressure gas storage bin. According to the utility model, a high-pressure hydrogen test environment can be effectively provided, and the performance test of a metal material under a constant load is realized.