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Blower fan load high-efficiency assessment system
ActiveCN106503316ASimple interfaceEasy to operateDesign optimisation/simulationSpecial data processing applicationsWind shearSimulation
The invention discloses a blower fan load high-efficiency assessment system. The blower fan load high-efficiency assessment system includes a querying module of a load simulation database, wherein the querying module can query and manage simulation input data and load data of all types of research and development machines, such as a unit boundary condition, tower size, blade design data, a complete machine Bladed model, and load data of main parts, blades, and a tower; a load comparison and sensitivity analysis module which can perform comparison analysis on boundary conditions, main part loads, and blade and tower loads of different projects, and perform sensitivity analysis on loads of identical projects with different boundary conditions; and a unit load strength applicability assessment module which can interpolation-calculate a load corresponding to a specific site based on mass load simulation data change for boundary condition parameters such as the air density, the annual average wind speed, the turbulence intensity, wind shear, and the inflow angle, and can perform strength assessment on parts according to strength assessment margin of a reference project. The blower fan load high-efficiency assessment system can improve the calculation efficiency of a blower fan generator unit load, can shorten the life period, and can save cost.
Owner:GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
System and method for realizing integration testing of centralized analog server in cloud computing platform
ActiveCN105302721ARealize the service functionQuick buildSoftware testing/debuggingTest efficiencyIntegration testing
The invention relates to a system and a method for realizing the integration testing of a centralized analog server in a cloud computing platform. The system comprises an analog server centralized management platform and an analog multi-protocol service function platform, wherein the analog server centralized management platform is used for carrying out centralized management on a receiving request flow of the analog multi-protocol service function platform, a processing service request flow and an analog behavior execution operation in the processing service request flow; and the analog multi-protocol service function platform is used for configuring basic parameters required by a current analog integration testing and a simulator which needs to be used in the current analog integration testing and is used for executing the receiving request flow, the processing service request flow and the analog behavior execution operation in the processing service request flow. The system and the method, which adopt the structure, can simulate the connection of the integration testing before integration, can simulate all practical situations, are convenient and quick in operation, quickly prepare an integration testing environment, carry out the integration testing in advance, effectively improve integration testing efficiency among application systems and have the advantages of being stable and reliable in operation and wide in applicable range.
Owner:PRIMETON INFORMATION TECH
Optimization method facing lateral force of Macpherson suspension shock absorber
ActiveCN103310047AExtended service lifeImprove work performanceSpecial data processing applicationsForce linesCoil spring
The invention relates to an optimization method facing a lateral force of a Macpherson suspension shock absorber, which comprises the following steps: firstly, measuring hard point coordinates of a Macpherson suspension to be optimized and establishing a multi-rigid-body simulation model on the basis of the multi-body dynamics theory; then using the K&C characteristic of the actually measured Macpherson suspension as the datum and regulating hard point coordinates of the simulation model until an error of a simulation result is controlled in an acceptable range; and finally, respectively using a geometrical parameter of a spring seat and an actual acting force line of a coil spring as optimization design variables, using the lateral force at the positions of a guide seat and a piston of the shock absorber as an optimization target and selecting a response surface method to carry out optimization in multi-body dynamics software, so that the optimal geometrical parameter of the spring seat and the optimal spring actual acting force line which enable the lateral force of the shock absorber to be minimized can be obtained. Compared with the prior art, the optimization method respectively starts with the geometrical parameter of the spring seat of the shock absorber and the force line of the coil spring of the shock absorber, optimizes the lateral force at the positions of the guide seat and the piston of the shock absorber, improves the working performance of the suspension and prolongs the service life of the shock absorber.
Owner:TONGJI UNIV
Test system of hybrid electric vehicle
ActiveCN101739026AAvoid damageImprove reliabilityElectric testing/monitoringObservational errorData acquisition
The invention provides a test system of a hybrid electric vehicle, which belongs to the technical field of automobile electronics. The test system overcomes the defects of more test personnel, large data acquisition workload, complex operation, large measurement error and the like in the existing method adopting manual monitoring and testing. The test system of the hybrid electric vehicle comprises a CAN bus and a PC machine, wherein the CAN bus is provided with a plurality of nodes; the PC machine is connected with the CAN bus; the PC machine comprises a central processing unit, and a message resolving module, a memorizer and a display which are connected with the central processing unit; a data acquisition module is connected between the CAN bus and the message resolving module; and the data acquisition module is used for acquiring information of each node from the CAN bus and displaying the information on the display after the resolution by the message resolving module. The test system of the hybrid electric vehicle can accelerate research and development, can quickly detect the state and display the fault, and has the advantages of high speed, low electromagnetic radiation, anti-electromagnetic interference, cost saving and the like.
Owner:HUAWEI TEHCHNOLOGIES CO LTD
Battery design method with multi-parameter synergistic effect
InactiveCN110232201AFast optimization calculationEfficient and optimized computingDesign optimisation/simulationSpecial data processing applicationsAlgorithmElectrochemistry
The invention discloses a battery design method with a multi-parameter synergistic effect, and aims to solve the problem that an existing optimization algorithm for calculating an optimal value is affected by the application field, the calculation precision and the calculation efficiency. The method comprises the following specific steps: step 1, determining a design variable; step 2, acquiring parameters of the battery; step 3, establishing an electrochemistry-thermal coupling model of the battery by using the parameters in the step 2; step 4, verifying the effectiveness of the electrochemistry-thermal coupling model in the step 3; 5, calculating the energy density E and the power density P of the battery; and 6, calculating the model in the step 3 through a BOBYQA method to obtain an optimized value of the design variable in the step 1. The method establishes the rational electrochemistry-thermal coupling model, introduces a simulation result into an optimization module in real time,and an iteration value obtained through calculation of the optimization module is fed back to the electrochemistry- the thermal coupling model, rapid and efficient optimization calculation is carriedout.
Owner:CENT SOUTH UNIV
Method for quickly measuring circuit power consumption
InactiveCN101672872AQuick measurementRapid positioningPower measurement by current/voltageNegative feedbackFast measurement
The invention discloses a method for quickly measuring circuit power consumption, wherein a power supply circuit in a circuit to be measured is designed by adopting a voltage stabilizer and the insideof the voltage stabilizer realizes voltage-stabilizing output by a negative feedback principle; and a path of voltage-stabilizing source is added at a voltage output end of the voltage stabilizer, the output voltage Vext of the voltage-stabilizing source is higher than the practical output voltage Vout of the voltage stabilizer, the output current Iext of the voltage-stabilizing source is read and the circuit power consumption is calculated by substituting the Vext and the Iext in a formula P=Vext*Iext. Under the conditions that wire jumping phenomenon does not occur and any devices on a circuit board are not taken off, the method for measuring circuit power consumption can quickly, accurately and non-destructively measure the current consumption conditions of a plurality of power domains, thereby calculating the power consumption of various paths of submodules to be measured or subsystems to realize quick positioning and confirmation of abnormal power consumption problem and furtheraccelerating the research and development and maintenance speed of electric appliances.
Owner:QINGDAO HISENSE MOBILE COMM TECH CO LTD
Location test system for defects of integrated circuit and implementation method thereof
InactiveCN101576565AImprove product qualitySpeed up research and developmentAnalysing fluids using sonic/ultrasonic/infrasonic wavesElectronic circuit testingMeasurement deviceLaser scanning
The invention provides a location test system for defects of an integrated circuit and an implementation method thereof, belonging to the field of electronic test equipment, and relating to a system for locating and testing the defects of the integrated circuit and an implementation method thereof. The system mainly comprises a control analysis unit, a laser generator, a laser distribution device,a laser scanning device, an acoustic oscillation generator, an optical microscope device, a sample electrification module, a weak light detection device, a rated current voltage measurement device, arated voltage current measurement device, a damping platform, a darkroom case, and the like. Due to the adoption of the invention, the physical position of various defects of the integrated circuit can be located intuitively, and the defects of the integrated circuit can be found in time and accurately so as to improve the product quality, accelerate the speed of research and development and improve the production technique level.
Owner:SHANGHAI FALAB TEST
Communication system between FPGA (field programmable gate array) and computer
ActiveCN103559156AImprove integration efficiencySpeed up research and developmentElectric digital data processingControl flowData stream
The invention provides a communication system between an FPGA (field programmable gate array) and a computer. The communication system comprises a DMA (directly memory access) engine, a PIO (programmed input / output) engine, a register block, a message controller, an interrupt controller and a PCIe IP (peripheral component interface-express intellectual property) core. Full-duplex and high-throughput DMA data transmission is realized by a sending module and a receiving module which are stand-alone in FPGA hardware, low-delay data transmission is realized by stand-alone processing of data flow and control flow in the sending module or the receiving module, and the FPGA and the computer are linked together by the DMA data transmission. By utilizing the technical scheme provided by the invention, the efficiency of the integration of an FPGA application and the computer can be increased, the research and development speed, the testing speed and the speed to market of the FPGA application are picked up, and the time and the human input consumed by the integration of the FPGA application and the computer are saved.
Owner:PEKING UNIV
Touch control equipment and touch control method thereof
InactiveCN104375776ATaking into account the display effectThe display effect is fully utilizedInput/output processes for data processingHuman–computer interactionUser interface
Provided are touch control equipment and a touch control method thereof. The touch control method includes the steps that after a touch control instruction for activating a user interface is received, the user interface is changed to be in a horizontally movable state; after a touch control instruction for horizontally moving the user interface is received, the user interface is horizontally moved and displayed so that a touch control object on the user interface can be moved into the range that a user can touch the touch control object with one hand. The touch control equipment and the touch control method can combine the display effect and user watching comfort while single-hand control of the user is facilitated.
Owner:GALAXYCORE SHANGHAI
Test system and test method of general converter product
InactiveCN102621408ASpeed up research and developmentVersatilityElectrical testingAutomotive engineeringPilot system
The invention discloses a test system and a test method of a general converter product. The test system comprises a test main circuit unit, a signal transmission unit and an upper computer unit, wherein the upper computer unit comprises a programmable logic controller and a touch screen, the test main circuit unit adopts a back-to-back structure, the test system has generality, is based on fully-controlled power electronic devices and energy bidirectional flow and can be used as the general test systems of an offshore wind power flexible direct current transmission converter, a static var generator, a four-quadrant frequency control device, an active power filter, a new-energy synchronization device, etc., the speed of research and development of the converter product is speeded up, the development period is shortened, the cost is saved, the function switching of the tested converter product can be realized by the programmable logic controller and the touch screen, the operation is convenient, and the human-computer interface is friendly.
Owner:无锡清源电气科技有限公司
Real-time simulation method for laser three-dimensional printing process
ActiveCN106383968AReduce dependencyVerify reliability in advanceDesign optimisation/simulationSpecial data processing applicationsReal-time simulationComputational simulation
The invention discloses a real-time simulation method for a laser three-dimensional printing process, and belongs to the field of laser forming manufacturing and rapid prototyping. The method describes distribution state of powder, computes energy requirements of a powder fusing process, and thus acquires variations of a shape and a size of a component during a printing process. According to the method, with the aid of computational simulation, the laser three-dimensional printing process can be simulated in real time, and information, such as a temperature field, during a laser three-dimensional printing process can be acquired. Existing laser forming technology screening methods depend on a large amount of experimental data, and are long in experimental period and high in cost. The method provided by the invention can simulate the laser three-dimensional printing processes of different technological parameters in real time. The technological parameters are prejudged before experimental processing to screen out the appropriate technological parameters. According to the method provided by the invention, the development speed of the laser forming technology can be greatly improved, and the development cost can be reduced.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Test backboard, backboard-based loading method and backboard-based testing method
InactiveCN101593903AImprove practicalityImprove acceleration performanceIncorrect coupling preventionElectrical testingElectricityGeneral function
The invention discloses a test backboard, a backboard-based loading method and a backboard-based testing method. The backboard comprises a main control board slot position which is used for transmitting signals between the test backboard and a main control board; at least one cross board slot position which is used for transmitting signals between the test backboard and a cross board; at least one service single board slot position which is used for transmitting signals between the test backboard and a service single board; an expansion slot position which is used for transmitting signals between the test backboard and an expansion slot position test board; and a switch electric device which is used for controlling power up and down of the slot positions. The technical proposal provided by the invention integrates the main control board slot position, the cross board slot position, the service single board slot position and the expansion slot position in the test backboard and supports the tests of specific functions of the single board such as single board program batch downloading and batch single board JTAG test besides tests of the normal functions and performance of the single board.
Owner:董艳
Dual processor WiMAX base station and data processing method thereof
ActiveCN101227358AImprove operational efficiencyImprove operational reliabilityData switching detailsData switching by path configurationIntermediate frequencySystems management
The invention provides a WiMAX base station with dual processors and a data processing method, the WiMAX base station with dual processors comprises a radio-frequency transmitting-receiving module, an analogy / digital middle-frequency module, a middle-frequency interface which can program logical array IFPGA, a baseband processing module, a baseband interface which can program logical array BFPGA, a system management processor and a data transfer processor. The invention utilizes two processors to respectively finish processing business data and processing system allocating managing data in the WiMAX base station, which lowers complex degree of product design, and the management of data bus in the base station is simplified, and the base station reliability is obviously improved.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD
Processing method and processing device for technical indexes of high speed train
ActiveCN104573185ASpeed up research and developmentImprove efficiencySpecial data processing applicationsIndex systemComputer science
The embodiment of the invention discloses a processing method and a processing device for technical indexes of a high speed train. The processing method comprises the following steps: classifying technical indexes of a known high speed train to obtain a plurality of index items; establishing a corresponding index system template according to the plurality of index items; establishing an incidence relation between the index system template and a product structure tree, and obtaining an index system instance through the index system template and valuation of the plurality of index items; establishing a corresponding relationship between the index system template and the index system instance; when the technical indexes of the new high speed train design are received, generating an index system instance, contained in the technical indexes of the new high speed train design, of the known high speed train according to the incidence relation, the index system template and the corresponding relationship. According to the processing method and the processing device, the corresponding index system template is established by classifying the technical indexes of the known high speed train, so that the efficiency of processing the technical indexes is improved and the research and development speed of the high speed train is improved.
Owner:CRRC QINGDAO SIFANG CO LTD
Radio frequency configuration method, device and terminal
InactiveCN104617978AQuick debuggingSpeed up research and developmentTransmissionSpecific program execution arrangementsRadio frequency circuitsSoftware
The invention discloses a radio frequency configuration method, device and terminal. The method comprises obtaining hardware parameters in the terminal; according to the hardware parameters of the terminal, obtaining a radio frequency driver corresponding to the hardware parameters of the terminal; driving hardware in the terminal through the radio frequency driver. According to the radio frequency configuration method, by setting a plurality of groups of radio frequency drivers, when having change in radio frequency circuits or needing to adapt to different radio frequency circuits, the hardware in the terminal can be driven by searching for the corresponding radio frequency driver in the plurality of groups of radio frequency drivers without operations of redesigning driving software, burning software or the like, so that the speed of debugging, researching and developing products can be increased.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
Artificial intelligence-based basic culture medium formula development method and system
ActiveCN113450882AShorten development timeAvoid Multiple DOE TrialsMolecular designCheminformatics data warehousingAlgorithmData mining
The invention discloses an artificial intelligence-based basic culture medium formula development method and system. The method comprises the following steps: (1) establishing a sample formula database; (2) obtaining a sample formula culture database; (3) training a machine learning model by adopting the sample formula culture database obtained in the step (2) according to an optimization target to obtain a basic culture medium formula culture effect prediction model; and (4) performing culture effect regression prediction aiming at an optimization target by adopting the culture effect prediction model of the basic culture medium formula obtained in the step (3) in a search space of the adding proportion of each component in the basic culture medium formula to be optimized, and recommending the basic culture medium formula. The system comprises a sample formula generation module, a sample formula cultivation database, a regression model training module and a formula recommendation module. All components in the formula are analyzed at the same time, multiple DOE tests in a traditional method are avoided, therefore, the research and development speed is increased, and the basic culture medium formula development time is saved.
Owner:SHENZHEN TAILI BIOTECHNOLOGY CO LTD
Reaction mechanism research and analysis method for amphoteric water-soluble catalyst aerobic oxidation of benzyl alcohol to benzaldehyde
ActiveCN108256286ADoes not affect the alcohol oxidation processShorten the development cycleChemical processes analysis/designSpecial data processing applicationsRate-determining stepBenzaldehyde
The invention discloses a reaction mechanism research and analysis method for amphoteric water-soluble catalyst aerobic oxidation of benzyl alcohol to benzaldehyde. A density functional theory (DFT) is used for research of reaction mechanism of an amphoteric water-soluble CuII / TEMPO catalyst system in catalysis and oxidization of alcohol into aldehyde in an alkaline aqueous solution. The calculation results show that zwitterionic properties of catalysts have no effect on oxidation reaction of the alcohol; the catalytic reaction mechanism includes catalyst activation, substrate oxidation and catalyst regeneration steps; the conversion efficiency (TOF=3.89h-1) is calculated based on an energetic span model and consistent with an experimental measurement result (TOF=5.40h-1). The rate-determining step is the substrate oxidation step, and is a process in which hydrogen atoms are transferred from alkoxide to oxygen atoms of TEMPO. By exploring the reaction mechanism of the catalytic system,the reaction process can be observed, and a theoretical basis is provided for designing a new high-efficiency catalyst.
Owner:INNER MONGOLIA UNIV OF TECH
PID parameter optimization method for permanent magnet synchronous motor control system
InactiveCN106208867AImprove performanceSpeed up research and developmentGeometric CADElectronic commutation motor controlControl systemPermanent magnet synchronous motor
Disclosed is a PID parameter optimization method for a permanent magnet synchronous motor control system. The method comprises the following steps: (1) calculating simulation step length T1, current loop period TC1 and speed loop period TS1 according to parameters of an actual control system; (2) carrying out normalization calculation on current feedback of a current loop and speed feedback of the current loop according to parameters of an actual system permanent magnet synchronous motor; (3) carrying out CLARK transformation; (4) carrying out PARK transformation; (5) carrying out IPARK transformation; (6) carrying out SVPWM design; (7) utilizing matlab language to enable a discretized PID regulator; (8) establishing a control system parameter evaluation function; (9) designing a genetic algorithm; (10) configuring a SIMULINK permanent magnet synchronous motor and IGBT simulation model parameters; (11) building up a SIMULINK simulation model of the permanent magnet synchronous motor space vector algorithm; and (12) optimizing the parameters.
Owner:SHENYANG AEROSPACE UNIVERSITY
Method used for rapid evaluation of stain resistance of coated plates, and special standard pollutant
ActiveCN105628624AEnsure consistencyEnsure that the obtained test data is consistent with the actual outdoor pollution dataPreparing sample for investigationColor/spectral properties measurementsWater sprayMoisture
The invention discloses a method used for rapid evaluation of stain resistance of coated plates, and a special standard pollutant. The method comprises following steps: the special standard pollutant is absorbed by a test base material; high moisture treatment, water spraying treatment, and heating treatment are carried out; and the change of lightness value and reflectivity is detected so as to detect stain resistance. The composition of the special standard pollutant is disclosed in the patent specification and patent claims. The special standard pollutant and the method are capable of realizing accurate rapid evaluation of stain resistance of test base materials such as exterior wall coating, and evaluation time on stain resistance is shortened greatly.
Owner:NIPPON PAINT CHINA
Adapter plate, a multi-platform serial test system and method
ActiveCN103376340ALiberation scheduleShorten the test cycleElectronic circuit testingMeasurement instrument housingSoftware engineeringMulti platform
The invention provides an adapter plate which comprises a plurality of serial XDP interfaces. Each XDP interface comprises a TDI input signal pin and a TDO output signal pin, the XDP interfaces are sequentially connected through the TDI input signal pins and the TDO output signal pins. The invention further provides a multi-platform serial test system which comprises the adapter plate and a test tool. One XDP interface of the adapter plate is connected with the test tool. The invention further provides a method for testing a tested device by means of the test system. According to the technical scheme, the aim that required test items can be completed at a time can be achieved by the automatic test function of test software, a tester can reasonably arrange the test time, the test period is shortened to a certain extent, and the developing speed of the product is improved.
Owner:DAWNING INFORMATION IND BEIJING +1
Measuring device for rotary inertia of steering wheel and measuring method thereof
ActiveCN101532899AEasy to measureAccurate measurementStatic/dynamic balance measurementFailure rateSteering wheel
The invention aims to provide a measuring device with simple structure, low cost and convenient use and maintenance for the rotary inertia of a steering wheel and a measuring method thereof. The measuring device comprises a rigid substrate; the substrate is rigidly fixed with a steel pipe of which the end part can fix the steering wheel to be measured; at least one piece of rectangular strain gauge is adhered to the steel pipe, and each piece of strain gauge of the rectangular strain gauge forms an angle of 45 degrees with an axis of the steel pipe; and the rectangular strain gauge is connected with a data acquisition unit with a strain measurement module. The measuring method of the measuring device comprises two steps of marking the torsional rigidity of the steel pipe and measuring the rotary inertia of the steering wheel to be measured. The measuring device has the advantages of simple structure, low cost and failure rate, and convenient use and maintenance; and the measuring method of the measuring device for measuring the rotary inertia of the steering wheel has the advantages of simplicity, convenient operation, and accurate measurement, can replace the prior relative and complicated measuring devices, and effectively improves the speed of measurement, research and development of products.
Owner:CHERY COMML VEHICLE ANHUI
Method for optimizing design parameters of induction cavity of micro-channel acceleration meter
ActiveCN104392024ASpeed up research and developmentReduce R&D costsSpecial data processing applicationsElectrolytic agentFinite element analysis software
The invention provides a method for optimizing design parameters of an induction cavity of a micro-channel acceleration meter and belongs to the field of sensors. According to the method for optimizing design parameters of the induction cavity of the micro-channel acceleration meter, dynamic and static characteristics of the micro-channel acceleration meter are analyzed on the basis of finite element analysis software-COMSOLMultiphysics so as to search an optimal performance sensing occasion. The method comprises the following steps: establishing a three-dimensional dynamic model which comprises a Nernst-Planck equation and a lamellar flow field; drawing a designed micro-channel induction cavity three-dimensional structure of the micro-channel acceleration meter in the established model according to the design size of the micro-channel induction cavity; inputting four parameter values such as electrolyte conductivity, relative dielectric constant, electrolyte concentration and viscosity of the designed micro-channel acceleration meter; optimizing the design parameters according to the calculation result. According to the method, certain design parameters can be obtained by virtue of computer simulation and the internal condition of the reaction cavity of the acceleration meter can be further known under the condition of no micro-channel acceleration meter sample, and the development cost is quickened, and the development cost is reduced by virtue of simulated analysis on the condition of design parameters.
Owner:JILIN UNIV
Single-step delay stochastic gradient descent training method for machine learning
PendingCN111882060AIncrease profitReduce utilizationNeural architecturesNeural learning methodsOriginal dataEngineering
The invention discloses a single-step delay stochastic gradient descent training method for machine learning, and the method comprises the following steps: defining a global updating function and a local updating function, enabling the updating function to run in a parameter server in a distributed training mode, and enabling the updating function to run in a computing node in a single-node training mode; adjusting an execution sequence of calculation and communication operations in the calculation node, and in an ODSGD training mode, performing an update operation of a local weight by the calculation node while executing a gradient sending operation; introducing a new parameter variable to break the original data dependence relationship; and executing a distributed training task, settingthe number of iterations of a preheating stage, and additionally specifying an algorithm for local updating and corresponding hyper-parameters. According to the method, the utilization rate of computing resources in the distributed deep learning training process can be increased, meanwhile, on the premise of ensuring the training precision, the distributed training speed is increased, and the training time of the neural network model is shortened.
Owner:NAT UNIV OF DEFENSE TECH
Expansion wave firearm
InactiveCN101256062ASpeed up research and developmentReduce research and development difficulty and riskWeapon componentsProduct gasEngineering
The invention relates to a dilatational wave firearm. The technical scheme mainly includes that: a reaction gas discharge structure is composed of a flame vent hole which is on the firearm tube wall and connected with a bore, and a thrust jet connected with the flame vent hole, in the process from the begin of the internal trajectory to the end, the reaction gas, which goes from the bore and flame vent hole to the thrust jet connected with the flame vent hole, jets to form the counterforce which counteracts the recoil. The invention has the advantages that: 1. The invention not only can use whole combustible cartridge cases ammunition, but also can use the most common metallic cartridge case gun propellant fixed-loading charge at present. 2. The invention can use the single ignition, semi-automatic, automatic and other automatic modes, the problems of unlock, case-drawing and ejecting, prime, block and due out and so on can be solved the same as those in the common firearm, the invention can work in cartridge clip, ammunition drum, ammunition belt and other common prime again running fire types. 3. The invention can be applied for traditional self-propelled gun and tank whose gun breech is in the enclosed turret.
Owner:周林
Paper cup making machine
ActiveCN101391493BReduce manufacturing costReduce use and maintenance costsPaper/cardboard wound articlesLow speedEngineering
Owner:ZHEJIANG RUIDA MACHINERY
Receiver of radar simulator
ActiveCN111007469AReduce frequencyLow costWave based measurement systemsLocal oscillatorAnalog signal
The invention discloses a receiver of a radar simulator. The receiver comprises a first down-conversion system, a second down-conversion system, a detection system and a frequency storage system. A target radar signal serves as a first radio frequency input signal, the first down-conversion system provides a detection input signal for the detection system and provides a second radio frequency input signal for the second down-conversion system according to the first radio frequency input signal; the detection system provides a first digital signal for the frequency storage system according to the detection input signal; the second down-conversion system provides a second digital signal for the frequency storage system according to the second radio frequency input signal; and the frequency storage system is used for providing a second local oscillator input signal for the second down-conversion system according to the first digital signal and generating a radar analog signal according tothe first digital signal and the second digital signal. According to the receiver of the radar simulator, the cost and the design difficulty are reduced, and the research and development speed is increased.
Owner:上海铭剑电子科技有限公司
Simulation system for industrial design
InactiveCN105022657AAvoid design riskReduce productionEducational modelsSoftware simulation/interpretation/emulationDesign planSoftware system
The invention relates to a simulation system for industrial design. The simulation system comprises a hardware device and a software system, wherein the software system comprises a virtual reality editor and VRP-IE for converting a three-dimensional file to a file capable of being browsed in an IE (internet explorer); and the hardware device comprises a processing system, a three-dimensional display system and an interactive apparatus. The contributions of the simulation system are that product design and release as well as design assessment and check can be realized. A designer is helped to conveniently modify a design plan in time, so that the research and development costs are reduced and the research and development speed is increased. The interaction between a virtual scene and a user is realized, so that the internal structure of a product can be carefully observed; and meanwhile, the functions of virtual assembly, internet release and the like of the product also can be realized, so that the resource waste of enterprises in the industrial design process is reduced to the maximum extent, and the research and development cycle of the enterprises in the industrial design process is shortened to the maximum extent.
Owner:FOSHAN SIXVECTOR DESIGN & CONSULTANT CO LTD
Automatic alarm processing device and alarm processing method for terminal-reported alarm based on recorder management platform
ActiveCN107564272AEfficient managementSpeed up research and developmentRoad vehicles traffic controlAlarmsProcessing typeReal-time computing
The invention discloses an automatic alarm processing device and an alarm processing method for a terminal-reported alarm based on a recorder management platform and relates to the field of automaticvehicle alarm. According to the invention, the problem in the prior art that no automatic vehicle alarm processing scheme is available can be solved. An alarm processing rule is configured through a webpage terminal and then is associated with certain vehicles. The relation between the alarm processing rule and the associated vehicles is stored in a database. The basic information such as the alarm processing rule is read regularly by a server. According to the rule, a specific model algorithm is formed. The vehicle alarm data is received through the message queue ZMQ mode. The data is used asa triggering condition which is executed by the alarm processing rule. When a vehicle identifier alarm processing type of the vehicle alarm data is matched with the alarm processing rule, specific actions defined in the alarm processing rule are executed. The device and the method can be used for sending action instruction to a terminal device on a vehicle and making actions on the vehicle.
Owner:AEROSPACE HI TECH HLDG GROUP
An antenna device for dual-frequency mobile phone
InactiveCN101242025ASolve problems with huge performance differencesAvoid Process ErrorsMultiple-port networksAntenna supports/mountingsDual frequencyAntenna design
The present invention discloses an antenna device which is used for the double-frequency mobile phone and comprises a sheet antenna radiant body that receives the signal from the transmitting station and radiates the signal from the radio frequency module, the sheet antenna radiant body is coupled with a matching circuit used for adjusting the magnitude of the antenna impedance, the matching circuit comprises an aerial signal feed-in connecting point, a mobile phone signal feed-in connecting point and a pi-type network composed by the matching elements, the aerial signal feed-in connecting point is coupled to the antenna radiating unit, the mobile phone signal feed-in connecting point is coupled with the radio frequency module, and the pi-type network is coupled between the aerial signal feed-in connecting point and the mobile phone signal feed-in connecting point. The invention has the advantages of increasing the developing velocity of the mobile phone antenna, reducing the developing degree of the mobile phone antenna, shortening the period of developing and producing the mobile phone antenna and increasing the normalization and finished-production of the antenna designing.
Owner:HUIZHOU SPEED WIRELESS TECH CO LTD
Dynamic property testing device for large-drift-diameter ultrahigh-pressure electro-hydraulic proportional cartridge valve
ActiveCN107165877ALow costShorten the test cycleFluid-pressure actuator testingServomotor componentsHydraulic cylinderControl system
The invention discloses a dynamic property testing device for a large-drift-diameter ultrahigh-pressure electro-hydraulic proportional cartridge valve. The device mainly comprises a high-frequency hydraulic cylinder, a hydraulic cylinder output force control system and a specialized cartridge valve testing valve block, wherein the hydraulic cylinder output force control system and the specialized cartridge valve testing valve block are matched with the high-frequency hydraulic cylinder. According to the device, hydraulic power borne by a cartridge valve element in a switched-on state is mainly simulated by the hydraulic cylinder output force on the condition that fluid flowing is not adopted, the movement and controlled condition of the valve element are measured when the hydraulic cylinder acts, and then dynamic property parameter characteristic testing of the ultrahigh-pressure high-flow cartridge valve is achieved; dynamic property testing of the cartridge valve can be achieved in a laboratory on the condition that a high-flow pump unit is not needed, therefore, the testing cost is greatly reduced, the testing period is shortened, problems can be found and excluded in time when product approval testing is conducted, and the product research and development speed is increased.
Owner:YANSHAN UNIV
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