166 results about "Systematic testing" patented technology

Disclosed are systems and methods including software processes for developing test cases for testing robustness of AI-based image-recognition models-under-test (MUTs) with respect to types of image variation transformations. The system may generate various types of robustness metrics for the MUT and output user-readable reports about the MUT's performance. The system trains machine-learning architectures to generate test cases including augmented images according to the types of image transformations, applies the IR MUTs, and then evaluates the image feature vector embeddings and predicted classification produced by the IR MUTs to determine the accuracy of the MUT with respect to each type of transformation.

The invention provides a satellite-borne router network access test system and a test method thereof. The satellite-borne router network access test system comprises a constellation network node simulation platform, a performance test evaluation platform, an interface protocol conversion device, a constellation service traffic simulator and a network router digital model. Through joint simulation of the virtual nodes and the physical nodes, a simulation test platform can be provided for design and optimization of the satellite-borne router through scene simulation of a complex satellite network environment in a design stage, and the development efficiency is improved; on the other hand, in the product development and system test stage, the full-constellation operation scene can be simulated, the function and the performance of the satellite-borne router can be assessed and verified in the full-constellation scene in the ground environment, the method is particularly suitable for the low-orbit large-scale batch emission large-scale networking scene, the test coverage and the test effectiveness of the product are greatly improved, and the test cost is reduced. Development risks of insufficient verification, delayed verification time and the like before launching are effectively released, and meanwhile, the test verification cost is reduced.

The invention discloses an experiment-numerical value-machine learning fusion-based in-oil liquid drop electric field dynamics modeling and regulation method, which comprises the following steps of: firstly, constructing a high-voltage electric field liquid drop experiment system, and testing oil liquid drop experiment data in oil; then establishing a multi-physics field coupling model, and describing deformation and flow field evolution of oil drops in oil under a strong electric field; and finally, constructing a BP neural network and optimizing an initial weight and a threshold value to realize rapid prediction of the deformation behavior of the oil drops in the oil under the action of the electric field. According to the method, an experimental characterization-numerical solution-machine learning optimization three-layer collaborative system is constructed, a whole-process closed loop from physical property determination, equation solution to algorithm prediction is realized, and droplet deformation, charge distribution and interface response are rapidly predicted under the conditions of different electric field intensities, temperatures and emulsifier concentrations; and active control of electric field behaviors can be realized through parameter reverse adjustment, and reliable modeling and optimization basis is provided for an electrowetting chip, a flexible EHD pump and a microfluidic liquid drop regulation and control system.

The invention discloses an automatic generation method of an intelligent unmanned system city simulation test scene, and relates to the field of simulation scene construction and intelligent unmanned system test.The method comprises the steps that based on terrain boundary parameters, a plurality of rectangular areas with function labels are generated through Poisson disc sampling and a distance gradient algorithm; constructing a navigation grid representing the passable area; arranging a plurality of road intersections by adopting a constrained Poisson sampling algorithm; calculating the heart weight based on each intersection, and calculating the connection strength between the intersections through a gravity model; generating a global road network topology structure by adopting an improved minimum spanning tree algorithm; performing path search by adopting an algorithm A to obtain an optimal path, and automatically generating a road model and ancillary facilities; and extracting road network, road parameters and subsidiary facility information in the generated urban scene, and generating a standardized scene description file according to an OpenDRIVE standard format. And the construction efficiency of the simulation test scene, the test effectiveness and the cross-platform compatibility are improved.

The invention provides a test system of a direct current charging pile. The test system comprises a programmable load; the I / O controller is connected with one end of the I / O controller after the plugs and the sockets of the different functional units of the direct current charging pile are butted; and the control system is used for outputting a control instruction to the I / O controller, so that the I / O controller outputs a driving signal to the functional units according to the control instruction to respectively perform on / off control. According to the invention, on-off of each function signal can be respectively controlled according to test case requirements, and automatic gun insertion and extraction, automatic card swiping authentication and automatic charging pile off-line and on-line in a charging pile system test process are realized. The system can automatically drive an emergency stop switch and an access control switch, automatically adjust the temperature change of a charging gun, automatically load and adjust the size of a load, and automatically achieve the power supply and outage of a charging pile, and does not need the manual intervention of a tester in the testing process, thereby solving the problem of poor consistency of manual operation, and improving the testing efficiency. And the test efficiency of aging test, repeatability test and the like can be greatly improved.

The invention discloses an evaluation method, device and equipment for composite material repair consumables and a medium, and relates to the technical field of composite material structure maintenance. A series of controllable disturbance factors are introduced around reference process parameters to simulate actual fluctuation, and the system tests the performance of the repair consumables under non-ideal process conditions, so that the safety boundary of qualified products produced by the repair consumables is determined, and a more comprehensive and practical evaluation system is provided. A process window volume is introduced as an objective and comparable robustness quantitative index, and a process space boundary is efficiently predicted by means of a Gaussian process regression model, so that the problems of high cost and low efficiency of a traditional exhaustion test method are avoided. According to the method, the process robustness for determining the stability of the repair consumables in the actual maintenance environment is converted into the quantifiable and comparable equivalent curing process window and the measurement value thereof, scientific screening of the repair consumables is realized, and the quality risk in actual maintenance operation is remarkably reduced.

A device for measuring in-situ drilling rock hardness based on a high-pressure water pressure head comprises a hydraulic power system, a data acquisition system, a test probe and a push rod, the front end of the push rod is connected with the rear end of the test probe; the hydraulic power system comprises a manual hydraulic plunger pump; the manual hydraulic plunger pump is connected with the test probe through a reversing three-way valve; the data acquisition system comprises a data recorder, a displacement sensor and a pressure sensor, the displacement sensor and the pressure sensor are arranged on the manual hydraulic plunger pump, and the displacement sensor and the pressure sensor are connected with the data recorder through a signal receiver. The device is simple in structure, convenient to operate and capable of measuring the rock strength of different drill holes, different depths and different point positions so as to obtain the distribution condition of the roadway rock strength, the measuring result is close to the on-site rock mass, a water medium is used for pressure transmission, the measuring process is simple, convenient, environment-friendly and safe, errors in the processes of sampling, processing and the like are avoided, and the working efficiency is improved. And the measurement cost is reduced.

The utility model belongs to the technical field of MEMS (Micro Electro Mechanical System) testing, and particularly relates to an MEMS accelerometer chip vibration testing tool, which comprises an aluminum tool, a testing PCB (Printed Circuit Board) and a testing base, the testing PCB is fixed on the aluminum tool through a screw, the problem of high-frequency vibration distortion caused by the height of the testing PCB is avoided, the testing frequency can be stably improved to more than 80Hz without distortion, and the testing efficiency is improved. In an actual test, the vibration testability is kept good after the frequency is higher than 80 Hz, then the accuracy of a test result is improved, the number of the test bases and the number of the test PCBs are both four, parallel testing of multiple chips is achieved, the test efficiency is remarkably improved, machining grooves in the aluminum tool avoid pins on the test PCBs, and installation interference is avoided; compared with the prior art, the accuracy of a test result is improved.

The application belongs to the field of trusted system testing, and discloses a kind of SIS trusted system booting trusted function test method and system, the application is by automatically constructing test environment and centralized configuration test case on automation test host, so that test process does not need manual setting device parameter one by one, avoid the problem of omission and inconsistency caused by manual configuration, improve the efficiency and accuracy of test preparation stage.In the application, the steps of automatically executing restart, modifying the verification object, restoring the file, etc. are performed by remotely connecting the device under test, which makes the process that originally requires manual repeated operation mechanized and repeatable, thereby reducing the risk of misoperation caused by manual intervention.In terms of trust measurement data collection, the trusted chain and measurement information are automatically sent to the test host after each start of the device under test, and the test host can obtain the complete measurement chain in a timely and systematic manner, avoiding the omission problem that may occur when manually comparing logs and PCR values.

The invention provides a noise testing device and a testing system, and belongs to the technical field of automobile braking system testing. According to the noise testing device, a traditional mechanical elastic element is replaced by a closed load cavity and pressurized gas, and axial counter force is directly generated by compressing gas in the cavity when a transmission part stretches out, so that noise introduced by additional structure friction or spring oscillation is thoroughly eliminated while a simulated load is braked; according to the utility model, the noise detection module is arranged, so that a signal received by the noise detection module only comes from a product to be tested, the purity and reliability of a test result are remarkably improved, and by virtue of the characteristic that the gas pressure is continuously adjustable, the same device can be quickly adapted to different load requirements, the overall structure is simplified, and the maintenance and operation cost is reduced.

The invention relates to a nuclear power plant radiation monitoring system test method and terminal equipment. The method comprises the following steps: establishing communication connection with real equipment; simulating an interaction process with related real equipment according to the spare part to be tested so as to obtain interaction data; determining whether the communication network of the to-be-tested spare part is normal according to the interaction data; when the communication network of the to-be-tested spare part is normal and the to-be-tested spare part is a KRT server, acquiring to-be-tested working data when the to-be-tested spare part is matched with a specified on-site processing display unit; and analyzing the to-be-tested working data to determine the fault condition of the to-be-tested spare part. According to the invention, whether communication networks of spare parts such as an LPDU, a KRT server and a DCS system in a nuclear power plant radiation monitoring system are normal or not can be accurately tested, whether the spare parts of the KRT server have faults or not can be comprehensively and accurately tested, and the safety of a nuclear power plant is improved.

The present application relates to the technical field of system testing, and particularly relates to a test data construction method and system of an on-chain battery swap platform and a storage medium, the method comprising the following steps: randomly generating a vehicle message; receiving the vehicle message, an account and battery information; verifying the vehicle message by using a vehicle state data verification model, and eliminating the vehicle message that fails to pass the verification; after associating the vehicle message with the account and the battery information of an uploading person, generating transaction information and uploading the transaction information to a block chain storage; querying the block chain, and downloading the transaction information containing the vehicle message that is queried; extracting the vehicle message in the transaction information, and sending the vehicle message to the on-chain battery swap platform to be tested; and downloading a module to periodically generate a reward transaction, and transferring a token corresponding to the number of downloads into the account of the uploading person. The present application has the beneficial technical effects of improving the quality of test data and helping to improve the test efficiency.

The application discloses a kind of pressure-maintaining core cross plate shear device and shear strength test method, device includes sample pressure-maintaining system, test system, control system, data acquisition system;Sample pressure-maintaining system is guaranteed by ball valve to ensure the pressure state, reach the purpose of pressure-maintaining stable before and after testing, test system carries out shear test to test sample shear strength by cross plate, control system realizes the extension and contraction of telescopic rod and the work of torque applicator, ensure that cross plate enters sample and carries out work, data acquisition system is in real time by torque sensor, HX711 module, single-chip microcomputer, RS485 communication serial port acquisition, transport and process data, and save in PC end.The application can carry out the pressure-maintaining core shear test device of testing on ship.It has strong guiding function to study submarine landslide generation mechanism, realize the safe exploitation of flammable ice and ensure the safety of submarine engineering construction.

The invention discloses a fire extinguishing device blow test system and method. The system comprises a supporting and weighing unit, an automatic control unit, a simulation blow pipeline unit and a data acquisition unit. Through programmed sequential control of the automatic control unit, multiple intermittent spraying tests of the fire extinguishing device are realized; the supporting and weighing unit monitors the weight change of the fire extinguishing device in real time, and the data acquisition unit acquires spraying pressure parameters; the simulation blow pipeline unit simulates pipeline arrangement of a real application scene. The system can systematically test the spraying time, the spraying pressure, the spraying amount and the multi-time spraying stability of the fire extinguishing device, is compatible with the fire extinguishing devices of various specifications of 10-120L, and is particularly suitable for comprehensive performance evaluation of the container valve starting type fire extinguishing device. The problems that an existing testing means is inaccurate in parameter collection, non-repeatable in testing and insufficient in safety are solved, and the method has the advantages of being comprehensive in testing, safe in operation and accurate and efficient in data.

The invention discloses a rail train braking system test method based on deep learning, comprising the following steps: establishing an instruction and TRDP redundant channel, and generating a synchronous configuration set; issuing a hard line and TRDP train instruction based on the synchronous configuration set, and generating an instruction-response timestamp set; generating an input signal sequence set under the constraint of the synchronous configuration set and the instruction-response timestamp set; hard wire output, a TRDP message and clamp pressure are collected to form an original data packet; performing double anchor point alignment on the original data packet, and outputting a qualified alignment data set; inputting the qualified alignment data set and the braking system topological graph into a deep learning test model, and outputting a prediction sequence and a component health score; comparing the prediction sequence with the alignment data set to generate a test conclusion and a component positioning result; all results are filed, and a test report is generated and stored in a test database. According to the invention, testing of the rail train braking system is realized.

The invention provides a performance testing method, device and equipment of an air conditioning system, a medium and a product, and relates to the field of air conditioning system testing. Comprising the steps of obtaining test demand information of a to-be-tested air-conditioning system; generating an automatic test file according to the test demand information; analyzing the automatic test file to obtain at least one test task type; determining a corresponding test unit according to the test task type; issuing a test instruction to a test unit to enable the test unit to execute a corresponding test task to obtain test data; and determining a test result according to the test data uploaded by the test unit. The technical problem that the performance testing efficiency of the air conditioning system is low due to the fact that manual testing is mainly relied on in the prior art, the testing efficiency is low, the data error rate is high, and historical data tracing is difficult is solved.

The invention belongs to the technical field of airplane intake and exhaust system tests, and particularly relates to a flight-launch performance matching verification test system which comprises a rigid platform, a power system, a load system, a remote control system, a test system and a sliding rail. Hardware parts of the power system, the load system, the remote control system and the test system are arranged on the rigid platform, and the load system, the remote control system and the test system are electrically connected with the power system; the rigid platform is connected with the sliding rail in a sliding block mode. The power system can drive the slide rail to move, and the remote control system and the test system can control the power system; the load system is used for load simulation and analog data output. Through technical innovation in multiple aspects of integrated design, real simulation, comprehensive control and monitoring, safety and stability guarantee and the like, the defects in the prior art are effectively overcome, and the capability and the effect of flight-launch matching verification are remarkably enhanced.

The application relates to a tracking radar decoupling combined test system, which comprises a scanning frame which is movable, a echo emission device which is connected with a signal source and fixed on the scanning frame to follow the scanning frame to move and used for simulating a target, a radar which is fixed on a rotating table to simulate disturbance of the radar fixed on a satellite through rotation of the rotating table, a host computer which is connected with the rotating table and used for controlling the rotating table, and a radar test device which is connected with the host computer at an input end, acquires angular velocity information sent by the host computer to the rotating table, and is connected with the radar at an output end to output the angular velocity information to the radar and used for simulating angular velocity information output by a gyroscope of a satellite platform; the radar executes decoupling processing according to the angular velocity information and outputs position information of the simulated target in real time for testing. The application firstly proposes to test the decoupling function of the radar in a system mode, simultaneously realizes combined testing of high-precision radar tracking targets and decoupling platform disturbance, and can simulate real use working conditions.

Provided is a system (100) for use in testing biological material. The system includes a substrate (102), and at least one support member (104) that has a biocompatible support portion (106) for supporting the biological material. The at least one support member is mountable to, and detachable from, the substrate. The at least one support member is detachable from the substrate at least by manual manipulation by a user, for example by the user pulling the at least one support member from the substrate using tweezers. Additionally provided is the support member per se. Further provided is a method of testing biological material using the system, as well as use of such a system for testing biological material.

The invention relates to an in-situ rapid testing device and method for rock mechanical parameters. The in-situ rapid testing device comprises a shell assembly, a testing assembly and a cloud system, the test assembly is arranged in the shell assembly; the testing assembly comprises a controller, a first motor, a second motor, an image shooting component, a drill rod with a drill bit, a pressure sensor and a torque sensor; the first motor enables the second motor to move up and down under the control of the controller so as to drive the drill rod connected to the second motor to move up and down; the second motor is used for driving the drill rod to rotate under the control of the controller; the image shooting component is used for shooting an initial image and a final image of the drill bit under the control of the controller; and the cloud system corrects the drilling thrust, the drilling torque, the drilling speed and the rotating speed based on the drill bit abrasion parameters, and finally rock mechanical parameters are obtained. The problem that the accuracy of a test result is reduced due to drilling parameter fluctuation caused by drill bit abrasion is solved, and the rock parameter detection accuracy is greatly improved.

The invention relates to the technical field of vehicle testing, in particular to a whole vehicle braking wear particulate matter testing system under laboratory conditions. The system comprises a chassis dynamometer, a vehicle head fan, a tested vehicle, a connection system, a collection system, a test system and a verification system. The chassis dynamometer is used for providing various resistances in the normal driving process of the automobile; the automobile head fan provides cooling airflow in the automobile driving process; in the running process of the tested vehicle, braking wear particles are generated by a braking system; the connecting system connects the tested vehicle with the collecting system; the collecting system is used for capturing brake wear particles generated by the brake assembly; the test system is used for acquiring emission characteristics of brake wear particles of the tested vehicle; and the verification system is used for obtaining the test efficiency of the brake wear particles in the test scheme and correcting a final result.

The application provides a test device and a test system suitable for the test device. The test device comprises: a current probe sequence comprising a plurality of current probe rows extending along a first direction and sequentially and spacedly distributed along a second direction; and a voltage probe sequence comprising at least two voltage probe rows extending along the first direction and spacedly distributed along the second direction. The voltage probe sequence comprises a first voltage probe row, and the current probe sequence comprises a first current probe row and a second current probe row located on both sides of the first voltage probe row and closest to the first voltage probe row. The first current probe row and the first voltage probe row have a first spacing, and the second current probe row and the first voltage probe row have a second spacing. The ratio of the first spacing to the second spacing is not greater than 1 / 2. The test device can avoid the problem of a false high fill factor test result.

The application provides a method and device for parsing LCU system log data based on python and mysql, which comprises the following steps: importing a message type template, adding the successfully imported message type template to a mysql database to form a template table; importing a log file into the mysql database, splitting the log file into multiple messages, and storing field data into an interactive display list based on a python script; selecting a message to be parsed in the interactive display list, matching the selected message with a message type model in the template table; parsing each field data in the message based on the matched message type template, and processing the parsing result into a visual list through the python script. The application only needs to import the log into the system, and then the test personnel can select the hexadecimal data to be parsed according to the needs, so that the parsed data can be obtained, the test efficiency of the test personnel is greatly improved, and the test personnel can conveniently analyze the data.

A system comprised of an apparatus and a test device is described. The test device and the apparatus are designed to interact to determine the presence or absence of an analyte of interest in a sample placed on the test device. The test device and apparatus interact to provide a timer feature for determining a test device specific adjustable cut-off value that is used to ascertain whether signal from a test line in the device corresponds to a positive or negative results, irrespective of the time elapsed since placement of sample on the test device. The adjustable cut-off value renders the system relatively insensitive to incubation time of the test device, where if the incubation time is shorter or longer than needed for accuracy of a test result, the analyzer will report an invalid result, thus preventing the reporting of an incorrect (false negative or false positive) result.

The invention discloses a first-order vibration fault testing method for a hydraulic torque converter of a rear-drive transmission, and belongs to the technical field of automobile transmission system testing. Related information of the hydraulic torque converter carried by the to-be-tested vehicle is confirmed, and the relation between the order and the frequency of the hydraulic torque converter is calculated; determining a vehicle related structure, working condition information and a vehicle state during abnormal jittering; making a test project plan; arranging a vibration sensor, connecting the vibration sensor to LMS equipment, and carrying out a full-working-condition test; data are collected, and vibration energy contribution is analyzed; integrating a test result, judging a problem part, and formulating an optimization scheme; and verifying the effect of the optimized sample piece, and finally determining a problem sample piece. According to the method, the technical problem that the first-order vibration fault of the hydraulic torque converter under the high-speed working condition of a rear-drive pickup truck is difficult to accurately recognize and position is solved, the reliability and driving smoothness of a transmission system are improved, and scientific and reliable technical support is provided for design optimization and fault diagnosis of the hydraulic torque converter.

The application discloses an automatic driving decision system test case generation method based on adversarial counter-optimization, and aims to solve the problem that the test case generation method of the automatic driving decision system is difficult to generate test cases which can trigger the risk of the decision system and meet the requirements of engineering execution, reproducibility and demand traceability. The application uses the test requirements, interfaces, behaviors and constraints described by the SysML model of the test scene as the basis, uses offline reinforcement learning to construct a reusable offline risk evaluator, and constructs an adversarial counter-optimization target based on the vehicle trajectory and the offline risk evaluator. The disturbance parameters of the test scene are searched through adversarial counter-optimization iteration, and then the disturbance parameters are projected and checked in combination with the constraints such as vehicle dynamics, road topology, traffic regulations and multi-agent interaction rationality, so that the test scene and the test case which are high in risk, high in coverage, executable and reproducible are finally generated. The application belongs to the technical field of automatic driving.

The invention discloses a processing test method and device for a parking position information packet, relates to the technical field of train control system testing, and mainly aims to comprehensively and efficiently verify whether a function of deleting the information packet by vehicle-mounted equipment in a corresponding scene is correct or not. According to the main technical scheme, the method comprises the steps that the test requirement of a train for a parking position information packet is acquired; a corresponding target test scene is matched in a preset test scene matrix based on the test requirement, the test scene matrix is a test scene set constructed according to test point combination corresponding to the parking position information packet, and test points comprise train self-state test points and external input state test points; each test scene corresponds to one expected processing result; for the target test scene, executing corresponding processing operation on the parking position information packet to obtain a test processing result; and comparing the test processing result with an expected processing result to verify whether the processing operation on the parking position information packet in the target test scene is correct or not.

The utility model belongs to the technical field of circuit board test fixtures, and particularly relates to a precise composite PCB test fixture, a buffer structure innovatively adopts a dual elastic buffer design, the technical problem that a traditional test fixture is easy to damage a PCB is effectively solved, the buffer structure comprises a sliding rod, an abutting rod and a spring assembly, a sliding rod is slidably connected into the pressing plate, and a detachable abutting rod is arranged at the bottom end of the sliding rod, so that adjustment can be conveniently carried out according to the thicknesses of different PCBs; a fixing ring is fixedly connected to the top end of the sliding rod, a first spring is arranged between the pressing plate and the fixing ring to form a first-stage buffering system, and a second spring is fixedly connected between the pressing plate and the workbench to form a second-stage buffering system; the test needle adopts a modular design and is convenient to maintain and replace, the service life of the jig is prolonged, the maintenance efficiency of the jig is improved, when the test needle needs to be replaced, an operator can quickly complete the replacement operation, the whole jig does not need to be disassembled, and the use convenience is improved.

The invention provides a multi-collision braking system test method and device, a terminal and a medium. The method comprises the steps that a test set is acquired; sending all virtual sensor information to the test vehicle in sequence, and receiving first test return information; obtaining an encrypted test signal according to the first test return information; closing an automatic emergency braking system function of the test vehicle, driving the test vehicle forward according to a preset speed, and sending an encrypted test signal to the test vehicle after driving for a period of time to obtain a second test return result; adjusting the posture of the standing dummy according to the test set; closing an automatic emergency braking system function of the test vehicle, driving the test vehicle forwards or backwards according to a preset speed to collide with the standing dummy, and obtaining a third test return result; and according to the first test return information, the second test return result and the third test return result, obtaining test scores of the multi-collision braking system. The test cost is reduced, the test time is saved, and the evaluation efficiency is improved.

A method for detecting a sand event in a well system includes receiving by a sand detection system one or more acoustic datastreams, wherein the one or more acoustic datastreams are provided by one or more corresponding acoustic sensors of the well system, subjecting by the sand detection system the one or more acoustic datastreams to a plurality of separate tests each providing an independent test score correlated with a probability of the one or more acoustic datastreams tested by a sand module of the sand detection system capturing the sand event, and combining by a scoring module of the sand detection system the one or more test scores to produce an overall sand score indicative of the probability of the one or more acoustic datastreams tested by the sand detection system capturing the sand event.