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1850results about How to "Shorten the test cycle" patented technology

Method for automatically testing embedded software

The invention provides a method for automatically testing embedded software, and aims to provide a method which is not separated in design and execution and is capable of improving the testing efficiency and the testing quality of the embedded software. The method is realized through the following technical schemes of integrating interface design, test planning, test design, test execution, defect management and regression test in a unified platform for management by adopting software engineering; allocating the grades between a data element and a data block according to difference of items, and designing an interface control file; establishing a test cross-linking environment diagram, formulating test types, and designing test items or test sub-items, the name of test cases and the description of test cases; designing independent test cases, forming a scene / business flow test case by linking the independent test cases together through a flow diagram, and saving data of the test design in a database; jointly forming a test platform by enabling the test execution to be combined with the test environment diagram, the test cases and an interface route; automatically recording a test result by a system.
Owner:10TH RES INST OF CETC

Soil slope water flow erosion resistance simulation test method and device

The invention relates to a soil slope water flow erosion resistance simulation test method and device. The device comprises a liftable slope simulation device, a sheetflood scouring simulation device, a water and soil collecting device, a flow velocity determining device and a slope surface form camera device. According to the test method, the water flow is controlled, surface flow and seepage are formed, and sheetflood water, seepage water and sediment quantity formed by scouring slopes by sheetflood water are collected. The flow, the flow velocity, the erosion depth, the sand yield and the like of the water flow are measured quantitatively. Compacted soil is soaked in water until saturation for simulation, the efficiency of an indoor simulation test on slope scouring is improved, the test period is shortened, the test result proves the maximum depth of a slope erosion gully and the change rule of the sand yield with time, discloses the relation between the water flow erosion capacity of catchment behind slopes and the slope length, gradient and time and provides a basis for prediction of the water flow erosion scale and the need of slope protection and reinforcement. The device is simple in structure, convenient to operate and suitable for measurement of soil mechanics parameters of slope soil mass.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Lithium battery cycle life quick testing method

The invention relates to the technical field of lithium battery parameter determination methods, in particular to a lithium battery cycle life quick testing method. The method includes the steps of step 1, determining charge state interval for cycle life quick testing according to polarization voltage characteristics of a battery sample, step 2, carrying out a battery cycle life quick test to obtain cycle life test experimental data, step 3, carrying out cycle life mathematic model deduction in partial charge interval, step 4, establishing cycle life deduction mathematic models in 0-100% charge interval, step 5, obtaining a cycle life formula of a battery in the 0-100% charge interval, and step 6, estimating the cycle life of the tested battery. The lithium battery cycle life quick testing method overcomes the defects that time for conventional testing is long, and difference between an accelerated cycle life testing method and the reality is large, and shortens design, development and testing periods of batteries.
Owner:BEIJING JIAOTONG UNIV +2

Thermo-mechanical-environmental coupling effect testing device and application from room temperature to ultrahigh temperature

The invention relates to the field of test of mechanical properties of materials and in particular relates to a thermo-mechanical-environmental coupling effect testing device and application from room temperature to ultrahigh temperature. The device comprises an electronic universal testing machine, a loading control system, a power supply control system, an induction heater, a strain measurement system, a sample clamp, a temperature measuring system, a pressure control system, a display and analysis system and a vacuum system, wherein a vacuum cavity in the electronic universal testing machine is in a fully water-cooled design, and various functional windows, such as a sensor connector of the clamp and the electronic universal testing machine, an infrared or thermocouple temperature measuring opening of the temperature measuring system, a pressure control opening of the pressure control system, an induction power supply introduction opening of the power supply control system, an extensometer introduction opening of the strain measurement system and a connector of the vacuum system and the vacuum cavity, are reserved in different parts of the vacuum cavity. The device disclosed by the invention can quantitatively research the thermo-mechanical-environmental coupling effect and has the advantages of diversified tested mechanical property parameters, high sample heating and cooling speed and the like.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Fine simulation test device and fine simulation test method for slope water erosion

The invention discloses a fine simulation test device and a fine simulation test method for slope water erosion. The fine simulation test device comprises an underframe provided with trundles and a test soil groove connected with the underframe, the test soil groove is arranged above the underframe, one end of the test soil groove is hinged to one end of the underframe, and a water tank matched with the test soil groove is arranged at the other end of the test soil groove. A hydraulic rod is arranged between the test soil groove and the underframe, an equalization pond is arranged between thetest soil groove and the water tank, the equalization pond is communicated with the water tank through a water conveying pipe, the water conveying pipe and a water pump are arranged on one side of the water tank, a water discharging pipe is communicated with the lower portion of the water tank, a three-dimensional laser scanner is arranged in front of the test soil groove, a railfall device is arranged right above the test soil groove, and a flow collecting opening connected with the test soil groove is arranged at the end of the test soil groove hinged to the underframe. The fine simulation test device and the fine simulation test method for the slope water erosion have the advantages of being capable of controlling slope soil bulk density, vegetation types and cover degree manually, simulating soil water erosion conditions under different site conditions, and studying influences and response theories of all factors on soil water erosion under different underlying surface conditions.
Owner:YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION

Testing system and method for electric part of power system for weak hybrid electric vehicle

The invention discloses a testing system and a method for electric part of power system for weak hybrid electric vehicle, and the system comprises a BSG motor module provided with a BSG motor and a BSG motor controller; a dynamometer module provided with a dynamometer, a measuring and control instrument and a torque and speed sensor, and a transducer or an inverter; a power module provided with a power storage battery, a battery management system, a program control power supply and a program control power supply controller; an auxiliary electric system load simulation module provided with a DC / DC convertor and an auxiliary electric system load; an upper computer module. The method adopts the half object simulation principle, the dynamometer simulates the engine for doing test to the BSG motor module and does the service life test for the electric part of weak hybrid power system at different working conditions that the BSG motor starts the engine, the engine drives the BSG motor for generating, regenerative braking, idle parking while the battery drives the load, the system and method can reduce the test cost, shorten the test period for vehicle performance and raise the developing speed for product.
Owner:GUANGDONG MECHANICAL & ELECTRICAL COLLEGE

Method and system for estimating service life of MOS (Metal Oxide Semiconductor) device

The invention discloses a method for estimating service life of an MOS (Metal Oxide Semiconductor) device. The method comprises the steps of: analyzing the relevance of a physical failure mechanism and a device macroparameter degradation, constructing a device macroparameter degradation model based on the physical failure mechanism; carrying out reliability analog simulation on a device, analyzing the sensitivity of the device macroparameter degradation to the physical failure mechanism; selecting a stress applying mode, carrying out a parameter degradation service life-based test on the device and obtaining reliability test data; analyzing the reliability test data, establishing a parameter degradation-based service life estimating computing model; and obtaining a service life estimating result of the device according to the service life estimating computing model. By using the method, the problems of accuracy and maneuverability of the traditional device service life predicting method under the novel technical conditions are solved, the quantity of test samples is reduced, the testing cost is lowered, and the accuracy of predicting the testing result is improved.
Owner:BEIJING SHENGTAOPING TEST ENG TECH RES INST

Brake-by-wire and steer-by-wire hardware-in-the-loop test bench for vehicle

InactiveCN101561353AThe simulation prediction results are accurate and reliableReduce development difficultyVehicle steering/rolling behaviourData acquisitionCurrent sensor
The invention discloses a brake-by-wire and steer-by-wire hardware-in-the-loop test bench for a vehicle. The test bench integrates a brake-by-wire system and a steer-by-wire system into a whole, and is divided into a software part, a real-time platform, a signal processing part and a hardware part, wherein the real-time platform consists of a host and target machines 1 and 2; the host and the target machines 1 and 2 are connected by a wireless network communication system; the signal processing part consists of first and second data acquisition cards with the model of PCL-818HD, third and fourth data acquisition cards with the model of PCL-727, a fifth data acquisition card with the model of PCI-6601 and a V / F conversion module; and the hardware part comprises a rotary angle sensor (12), a torque transducer (13), an opposite rotary motor (16), a steering resistance sensor (21), a steering actuating motor (18), an EMB actuator controller, and EMB actuator, a clamping force sensor, a revolution transmitter and a current sensor.
Owner:JILIN UNIV

Method for predicating cycle life of lithium ion battery

ActiveCN103698712ACycle Life PredictionReduce time-consuming issues with performance evaluationElectrical testingCyclic testProcess engineering
The invention relates to a method for predicating the cycle life of a lithium ion battery. The method comprises the following steps of performing batch-type cycle test on a to-be-evaluated battery in a to-be-evaluated cycle condition, and recording an accumulated cycle index and cycle volume conservation rate of the battery; transferring the battery not subjected to the batch-type cycle test and the battery subjected to the batch-type cycle test to an accelerating rate calorimeter, testing the thermal discharge in a charging process, recording temperature change data of the battery in the charging process, and calculating the temperature rise rate of the battery relative to an initial state; performing data fitting and calculation according to the accumulated cycle index and cycle volume conservation rate of the battery and predicating the cycle life of the battery. Compared with a conventional cycle test, the method provided by the invention has the advantages of greatly shortening the test period and avoiding energy consumption and resource waste generated by long-term test; in addition, data fitting is performed on the basis of short-term measured data, so that compared with pure-theory calculation and an empirical model, the method has the advantages of better universality and higher predicating accuracy.
Owner:TIANJIN LISHEN BATTERY +1

Test method of L3-level autopilot system of vehicle-in-loop based on virtual driving scene

The invention relates to a test method of an L3-level autopilot system of vehicle-in-loop based on a virtual driving scene. The method comprises the following steps of observing a kinematic state of avehicle, wherein the kinematic state comprises a position and a course angle, and is used for updating a vehicle pose in the virtual scene; establishing a sensory system model, wherein the sensory system model comprises four perception equipment models of vision, a millimeter wave radar, a laser radar and an ultrasonic radar; injecting virtual test scene libraries, and predefining three types oftest scene libraries including system driving scene working conditions, emergency working conditions and human-computer interaction working conditions according to an application scene of the L3-levelautopilot system; rendering in the virtual scene according to a pilot position parameter to generate a scene visualization visual angle; and recording and evaluating test data, including algorithm performance quantitative evaluation indexes and system evaluation indexes, and finally outputting comprehensive summary evaluation indexes of the L3-level autopilot system. Through the test method disclosed by the invention, the typical application scene of the L3-level autopilot system can be tested and evaluated in a limited experimental site.
Owner:ZHEJIANG LEAPMOTOR TECH CO LTD

Comprehensive test device for linear motor motion system

InactiveCN101980037APrecise positioningConducive to the study of the limit output stateDynamo-electric machine testingLow speedTorque motor
The invention discloses a comprehensive test device for a linear motor motion system, which belongs to the field of motor test equipment. The comprehensive test device consists of a tested linear motor, a rotating servo motor, a torque motor, a sensor module and a transmission mechanism. Linear motion guide rails and a linear position sensor are fixed on a workbench; a linear motor primary section is arranged on the linear motion guide rails; the output of a controller is connected with each sensor through one communication interface; the sensors transmit position, acceleration, tensile forceand temperature measurement signals obtained in a test process through the communication interfaces; and the rotating servo motor, the torque motor and the linear motor realize coordinated motion with the controller through communication interfaces. The test device can finish the plurality of tests of dynamic stiffness tests, thrust coefficient determination, temperature rise tests, low-speed motion characteristic tests and the like on a linear motor-driven machine tool feeding system, and solve the problems of absence of a complete set of test device, low test accuracy and low repeatability of the linear motor-driven machine tool feeding system.
Owner:TSINGHUA UNIV

Board card automatic testing system and testing method thereof

The invention discloses a board card automatic testing system and a testing method thereof. The automatic testing system comprises an industrial personal computer and a plurality of tested board cards, and further comprises a testing interface board. The testing interface board is provided with interfaces matched with the tested board cards, and the interfaces are used for being connected with the tested board cards with corresponding interfaces. The industrial personal computer is connected to the testing interface board through a communication interface. The industrial personal computer calls a detection program which is transmitted to the tested board cards through the testing interfaces. The automatic testing system of the board cards can be used for testing a plurality of board cards with different interfaces at the same time, the production cycle is shortened, and the board card production efficiency is improved. The testing method of the board card automatic testing system can monitor and store testing data of the tested board cards in real time, the testing data and testing states of the tested board cards are stored in the industrial personal computer, and errors can be conveniently tracked when errors of board card testing occur.
Owner:浙江众合科技股份有限公司

Automatic detecting system of S mode responder

The invention relates to the technical field of ATC responders, and discloses an automatic detecting system of an S mode responder. The automatic detecting system of the S mode responder comprises a control module, a signal processing module and a receiving and sending module, wherein the control module is used for sending inquiry data to the signal processing module, receiving responding data returned from the signal processing module, comparing and analyzing the responding data and originally-stored simulated responding data, and displaying the analyzed results; the signal processing module is used for analyzing and encoding the received inquiry data, then sending the inquiry data to the receiving and sending module, decoding the responding data returned from the receiving and sending module, generating a message format of the inquiry data and then sending the inquiry data to a control module; the receiving and sending module is used for achieving mutual transmission of signals between the receiving and sending module and the responder, and achieving frequency conversion, receiving and sending of the signals. According to the automatic detecting system of the S mode responder, accuracy detecting can be conducted on the specific field of the responding information of the S mode responder, manual detecting errors can be reduced, complex testing steps can be simplified, the testing period can be shortened, and working efficiency can be improved.
Owner:SICHUAN JIUZHOU ELECTRIC GROUP

Virtual test system and test method for ship performance

ActiveCN103303433AImprove realismTruly reflect human-computer interactionVessel partsAmbient dataTest fixture
The invention discloses a virtual test system and test method for ship performance, and belongs to the technical field of ship performance tests. The virtual test system comprises a storing device, a tool device, a testing device and an operating platform, wherein the storing device and the tool device are positioned at the bottom layer, the test device is positioned at a supporting layer, and the operating platform is positioned at an application layer; and the test method comprises the following steps: the operating platform builds the sailing data model of a boat sailing in the waves and the environment data model of the sailing environment of the boat respectively according to the testing result of the test device, and builds the conceptual data model of a boat in actual sailing by combining the two simulation models. The technical scheme provided by the invention is that the building of the navigation performance virtual testing system truly reflects man-machine interaction when a ship sails, the testing level is improved, the testing period is shortened, the testing cost is lowered, the accuracy and instantaneity of the motion simulation are ensured, and the fidelity of the virtual testing is further improved..
Owner:708TH RES INST OF CSSC

System and method for carrying out EPON (Ethemet-based passive optical network) performance test based on emulational ONU (optical network unit)

The invention discloses a system and a method for carrying out an EPON (Ethemet-based passive optical network) performance test based on an emulational ONU (optical network unit). The system comprises an Ethemet management system (EMS), an optical line terminal (OLT), an optical splitter, a plurality of real ONUs, a test instrument and an emulational ONU, wherein the OLT is connected with the EMS by adopting an internally-built or externally-built interface, and the OLT is sequentially connected with the optical splitter, the plurality of real ONUs and the test instrument end to end so as to form a ring-shaped test network. The method comprises the following steps: carrying out initialization on the system for carrying out the EPON performance test based on the emulational ONU; carrying out an emulation test by applying the system; and carrying out analysis on test results so as to obtain a test result. In case of carrying out the test on an EPON system by adopting the system and the method disclosed by the invention, the test complexity can be greatly reduced, and the test cycle can be reduced.
Owner:FENGHUO COMM SCI & TECH CO LTD

Integrated system and method for detecting and repairing OLED spots

ActiveCN108682365ACompensation for Brightness UniformityImprove brightness uniformityStatic indicating devicesGray levelOptical measurements
The invention, which belongs to the technical field of panel detection, discloses an integrated system and method for detecting and repairing OLED spots. The system is composed of a calculation unit,an optical measurement unit and a driving unit. The driving unit is applied to a pane and is used for driving the panel to lightening white pictures with different gray scales. The optical measurementunit is used for shooting pixel brightness measurement pictures and chromaticity measurement pictures of the panel under white pictures after being triggered by the driving unit. The calculation unitis used for acquiring brightness values and chromaticity values of all pixels based on the brightness measurement pictures and chromaticity measurement pictures and determining spot types and levels;compensation data of R / G / B channels are calculated based on the brightness values and chromaticity values of all gray scales and the compensation data are transformed into ones in formats that can bereceived by the driving chip of the panel, and the transformed data are sent to a memory of the panel; the compensation data in the memory are invoked to carry out spot repairing on a to-be-repairedpanel under control of a demura enabling state register. According to the invention, the two-third test time is reduced; the efficiency of the spot detection and compensation work is improved; and thebrightness uniformity of the white picture is compensated well.
Owner:WUHAN JINGCE ELECTRONICS GRP CO LTD

Stiffened wall plate compression stability test support fixture and end support coefficient test method

The invention belongs to the strength testing techniques of airplanes, and relates to a testing method for a supporting coefficient of a loading end in a compression stabilization experiment of a wallboard. A supporting clamp for the compression stabilization experiment of a reinforced wallboard comprises a hinged support clamp with a supporting coefficient of 1, a simple support clamp with a supporting coefficient between 1 and 4, and a fixed support clamp with a supporting coefficient of 4; a rectangular groove is processed on one side of the plane of an articulation block; and the end socket of a test piece is directly embedded in the rectangular groove. In the invention, the design of the test piece is given first; then a foil gauge is arranged, and the test piece and the clamps are mounted; a compression load is loaded hierarchically, and the load-stress is tracked and measured; when a curve knee point is discovered, the load is unloaded, and the load at the knee point is recorded; the load at the knee point is led in a theoretical formula to obtain the supporting coefficient; and finally, through increasing H or increasing clamping force, the supporting coefficient is adjusted. The method has the characteristics of simple operation, high loading precision and low cost.
Owner:CHINA AIRPLANT STRENGTH RES INST

Device and method of simulation and testing of finished car controller of hybrid power car

The invention discloses a device and a method of simulation and testing of a finished car controller of a hybrid power car. Due to the fact that a PCI interface and a micro processor are used for communication, the device of simulation and testing of the finished car controller of the hybrid power car has the advantages of being good in reliability, high in transmission rate of data, and good in extendibility. Due to the fact that a mathematical model of a power unit is used for simulating a working state of an actual power unit, cost of a system is greatly reduced. The device of simulation and testing of the finished car controller of the hybrid power car comprises a micro processor unit, a PCI bus processing unit, a display unit and an interface board card. The display unit and the PCI bus processing unit are respectively connected with the micro processor unit. The interface board card is connected with the PCI bus processing unit through a PCI bus. The interface board card is connected with the finished car controller to be detected. Therefore, configuration can be conveniently carried out on the structure of a finished car, relevant power unit parameters, an operation spectrum / a road spectrum, and port attributes of an interface board, and the system is good in generality. When the device and the method of simulation and testing of the finished car controller of the hybrid power car are used for testing a hybrid power finished car controller, a test period is shortened, test cost is reduced, and test results are good in stability and high in accuracy.
Owner:HUNAN UNIV

Rock double linkage three axis rheogeniometer

The invention comprises a pressure sensor, a displacement sensor servo system, an axial output oil cylinder piston, an axial servo loading system, a computer and a loading frame. The loading frame is connected to the pressure sensor; the pressure sensor is connected to the triaxial pressure chamber; the triaxial pressure chamber is connected to the metal piece; the triaxial pressure chamber is respectively connected to the loading frame and base; there is an axial spacer located in the triaxial pressure chamber; a lateral extensometer chain and a lateral extensometer clamp are mounted on the sample tunnel wall of the triaxial pressure chamber.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Aircraft engine casing static test method and testing assembly thereof

ActiveCN102023091AThe test conclusion is true and reliableShorten the test cycleMachine part testingAviationMutual influence
The invention provides an aircraft engine casing static test method and a testing assembly thereof. The method comprises the following steps of: assembling a plurality of casings to be tested to form the testing assembly according to an actual assembly requirement of an aircraft engine; fixing the testing assembly; applying simulation load to the testing assembly; and testing according to preset testing items. In the provided test method, the casings of the aircraft engine are combined for testing, mutual influence among the plurality of casings is considered, the load transmission among the casings is more truly simulated in the process of operating the aircraft engine, tested conclusion is more true and reliable, the test period can be effectively shortened by about 2 / 3, and the cost ofscientific research is reduced.
Owner:CHINA HANGFA SOUTH IND CO LTD

Indoor quick loaded concretion experiment apparatus and its method

The invention discloses an indoor quick load solidify tester and a relative method, belonging to the test technical field of deformation character index of rock project and building foundation. The device is composed of an upright load device, a solidify container for containing sample soil, a liquid pressure sensor, a deformation sensor, a static resistance strain gage, and a PC computer. And the test method comprises that (1), sampling, vacuuming until saturation, (2), putting the sample soil into the solidifying container, sealing the bottom of the sample and connecting with the sensor, (3), arranging the solidifying container into the upright load device, and mounting the liquid pressure sensor and the deformation sensor at relative positions, processing hole water pressure and upright deformation test, (4), using the static resistance strain device and the PC computer to pick, transmit and record static signal. The invention can be used in the condition with short construction period, high test accuracy and lack fund.
Owner:SHIJIAZHUANG RAILWAY INST

General purpose testing arrangement for embedded module and subsystem based on host machine platform

A embedded type modular and sub-system universal metering equipment based on the main computer platform, comprising a test example editing unit, a test use example pool, a test unit, a debugging unitand an analysis unit. The invention can transplant the modules and sub-systems originally needed to be downloaded into the hardware system onto the public host platform, thus avoiding the reduplicated exploitation of the test and measurement instrument.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD

Unidirectional carbon fiber cloth tension property testing sample preparation method

Embodiments of the present invention disclose a unidirectional carbon fiber cloth tension property testing sample preparation method. According to the present invention, a tension device is used to apply tension force along a weft direction so as to make the silk beam maintain a parallel and straightening state during a carbon fiber cloth sheet forming process, increase the accuracy and the reliability of the tensile strength of the tension property testing sample strip, and make the qualification rate of the tension property testing sample strip achieve 100%; a scale ruler is placed on a glass flat plate, such that the distribution of the unidirectional carbon fiber cloth sheet and the unidirectional carbon fiber cloth sample strip resin is uniform, the deposition can not be generated, the stress centralization phenomenon during the tension property testing process can be eliminated, and the probability of the advanced damage on the sample is reduced; and both ends of the unidirectional carbon fiber cloth sample strip are subjected to one-time curing forming to form the resin type reinforcement sheet so as to replace the external-adhesion aluminum sheet or fiber reinforced resin and other traditional reinforcement sheet, eliminate the technical problems of deviated tension, irregular stress-deformation curve and the like caused by the external-adhesion and the improper roughening treatment on the traditional reinforcement sheet, and improve the accuracy and the reliability of the testing result.
Owner:CHINA TEST & CERTIFICATION INT GRP CO LTD

Physical simulation method and physical simulation device utilizing suction casting to research solidification of strip continuous casting

The invention relates to a physical simulation method of the solidification process of strip continuous casting and a realization device thereof, which belong to the field of physical simulation and control of growth process of metal solidification structures. The invention provides a physical simulation method of the solidification process of the strip continuous casting process, so that a physical simulation test can reach the cooling rate of actual strip continuous casting to simulate the heat transfer process of the strip continuous casting; and the method researches an evolution law of solidification structures of the strip continuous casting and a basic law of the solidification by adjusting alloy element components and strip thickness, and can contrastively research an influence law of a rolling force on the solidification during the strip continuous casting. The invention provides a set of equipment which can realize physical simulation on the solidification process of the strip continuous casting. The invention designs a physical simulation device which has a concise structure and small scale and is flexible and smart, wherein main parameters of the device comprise that: the final vacuum is 6.6*10-4Pa, the radius of four water-cooled copper crucibles is 25mm, the working current is between 800 and 1,000A, and the rotating speed of electromagnetic stirring is between 0 and 200rpm.
Owner:SHANGHAI UNIV

Multi-channel frequency response analysis system and method thereof

The invention discloses a multi-channel frequency response analysis system and a method thereof. The system comprises an actuating signal generation module [1], data acquisition modules [2], a system controller module [3], an instrument control bus [4], an actuating signal wiring unit [5] and a measuring signal wiring unit [6], wherein the actuating signal generation module [1] is an instrument module of any-waveform generator; the data acquisition modules [2] are a plurality of multi-channel parallel data acquiring instrument modules or a plurality of multi-channel digitalized instrument modules; the system controller module [3] communicates with the actuating signal generation module [1] and the data acquisition modules [2] through the instrument control bus [4] of a case backboard or a bottom board; a signal of the actuating signal generation module [1] is output by the actuating signal wiring unit [5]; and an external measuring signal accesses the data acquisition modules [2] through the measuring signal wiring unit [6]. The invention has the advantages of more measuring channels, compact structure, strong data processing capacity, high test precision and favorable expansibility and tailorability.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Method for determining the aging state of battery cells by means of impedance spectroscopy

The invention relates to a method for determining an aging condition of a battery cell. The method has the following steps of a) providing a battery cell, b) recording an impedance spectrum of the battery cell, c) determining an evaluation quantity based on the measured impedance spectrum, and d) determining an aging condition of the battery cell based on a comparison of the evaluation quantity to a reference value.
Owner:ROBERT BOSCH GMBH

Aircraft three-dimensional surface flow distribution wind tunnel measurement method

The invention relates to an aircraft three-dimensional surface flow distribution wind tunnel measurement method. A structured light-based binocular vision three-dimensional point cloud reconstructionsystem and a multi-view image acquisition system are used for wind tunnel three-dimensional flow distribution measurement. Firstly, the binocular vision system is used to reconstruct the surface of awind tunnel test model. According to the aircraft three-dimensional surface flow distribution wind tunnel measurement method, the binocular vision system is utilized to perform the three-dimensional reconstruction of the surface of the wind tunnel test model; a small number of marking points are distributed on the model or at the periphery of the model; and point cloud splicing processing is carried out, so that the point cloud information of the surface of the wind tunnel test model is obtained. In a wind tunnel test, a plurality of cameras are adopted to perform multi-angle shooting on the model, so that the surface flow information of the model under different visual angles can be obtained; and image-to-three-dimensional point cloud coordinate system transformation is carried out through the information of the marking points arranged on the model or at the periphery of the model, so that a two-dimensional flow image can be mapped onto three-dimensional point cloud, and therefore, the three-dimensional full-surface flow distribution of an aircraft can be obtained.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS

Test method of rive project movable bed physical model coupling

The invention relates to a test method of rive project movable bed physical model coupling which comprises the following steps of: firstly, carrying out the preparation of a model test; then carrying out a model verification test; laying out the project on the model according to an improvement project initial design scheme; estimating a dynamic balance boundary morphology attained by a river bed after adjustment under the laid river boundary initial condition, wherein the dynamic balance boundary morphology comprises various parameters of river width, water depth, river bend radius; stimulating and moulding a new river boundary by an artificial moulding method according to the estimated parameters; carrying out a water discharge test under the artificially formed river bed boundary, observing various control and guide effect parameters and analyzing whether the control and guide effect parameters reach the design aim or not; otherwise, adjusting the scheme; if the control and guide effect parameters basically reach the design aim, proposing a recommendation scheme of modification or adjustment and carrying out the test; and comparing with the initial design scheme till the test is finished. The method has the advantage of observing the extreme value control and guide parameter or maximal control and guide effect of the project in a shorter test time interval so as to effectively shorten the test period and reduce the cost.
Owner:YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION

Testing method based on cloud computing operating system software compatibility

The invention provides a testing method based on cloud computing operating system software compatibility, belonging to the field of software testing. The technical scheme of the method solving the technical problem is as follows: a system of the method comprises a cloud computing operating system, the Internet and tested software, wherein the cloud computing operating system generates a plurality of virtual machines as testing machines for testing the software. A target platform needed during testing the software is established in each virtual machine system, the tested software is arranged on each target platform, and the testing machines test the tested software with the help of the Internet. The method utilizes the advantages of supporting multiple platforms and fast arrangement of the cloud computing system to fast establish the target platforms for arranging the software, and then the tested software is arranged on the target platforms to be tested, so that the cost of software testing is greatly reduced, the software testing period is effectively shortened, the testing work efficiency is increased, and software products are favorably introduced in the market as soon as possible.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Inner field radiation type complex electromagnetic environment building method and simulation system

The invention discloses an inner field radiation type complex electromagnetic environment building method, and the method comprises the steps: taking a reasonably-configured anechoic chamber as a testing platform, and constructing complex electromagnetic environment signals through various types of signal simulators, wherein the parameters of signal simulators can set flexibly; irradiating target, interference, clutter and background environment electromagnetic signals to tested equipment through a radiation unit arranged in the anechoic chamber. The invention also discloses a simulation system, and the simulation system comprises the anechoic chamber, a control chamber, a signal chamber, a rotating table, a suspension mechanism, a background environment simulator, a signal simulator, a radiation array, a feed system, a moving vehicle, a rail, a discrete receiving and transmitting unit, a bandwidth receiver, a computer, and a control system. The method provides a high-efficiency, reliable, repeatable and high-cost-performance technological means for the complex electromagnetic environment effect testing of an electronic system. The method has great application values in shortening the development period of the electronic system, reducing the testing consumption and improving the battlefield survival capability of equipment.
Owner:NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH
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