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Method and apparatus for implementing hardware level verification
ActiveCN101354674AMinor changesConducive to design and developmentSoftware testing/debuggingComputer architectureJoint Test Action Group
The invention discloses a method and a device for realizing hardware level verification. The device comprises a basic development and verification board and an extended development and verification board which are connected with each other through an AMBA bus of a high-quality microprocessor bus framework, wherein the basic development and verification board reads and writes a CPU register through an EJTAG interface of a reinforced joint test action group and executes CPU IP verification, and the basic development and verification board and the extended development and verification board execute the CPU IP verification and SOC (system on a chip) verification through the AMBA bus. The method and the device have the advantages that: firstly, structures of the basic development and verification board and the extended development and verification board not only can conveniently realize design and development and functional verification of an SOC but also can complete the development and verification work of IP and particularly CPU IP; secondly, the cost can be reduced; and thirdly, system correction and extension are easier and realization is flexible and convenient.
Owner:北京神州龙芯集成电路设计有限公司
Electronic replacement part technology state automatic detection system and method based on PXI bus
InactiveCN103454522AEasy to separateConducive to design and developmentElectronic circuit testingElectrical measurement instrument detailsSquare waveformDisplay device
The invention discloses an electronic replacement part technology state automatic detection system based on a PXI bus. The replacement part technology state automatic detection system based on the PXI bus comprises a controller with automatic detection system software, a PXI system, a VPC connector, an adaptor, a keyboard connected with the controller and a displayer, wherein the PXI system is formed by a PXI case and more than two PXI modules inserted into corresponding inserting grooves of the PXI case; the adaptor comprises a system self-test adaptor; the controller is connected with the PXI case through the PXI bus; signal ends of all PXI modules are connected with the self-test adaptor or a special test adaptor through the VPC connector; the system self-test adaptor comprises a standard current source, a standard resistor R, a reference source circuit, a square-wave generator, a signal route N1, a signal route N2, a signal route N3, a first copper foil short-circuit wire, a second copper foil short-circuit wire, a third copper foil short-circuit wire, a fourth copper foil short-circuit wire and a fifth copper foil short-circuit wire. The replacement part technology state automatic detection system based on the PXI bus has the advantages that due to the adoption of the adaptor, separating performance of an electronic replacement part to be tested and a PXI port is good, the system has good universality and expansibility, polytypic signals can be tested, and detection automation degree is high.
Owner:ORDNANCE TECH RES INST OF THE GENERAL ARMAMENT DEPT PLA
Method for adding comments to comment list of event, and comment system
InactiveCN107291454AImprove readabilityConducive to design and developmentSoftware designSpecific program execution arrangementsReadabilityMultimedia
The invention relates to a method for adding comments to a comment list of an event, and an evaluation system. The method comprises the steps of receiving comment information of the event, and generating a comment ID for the comment information, wherein the comment information comprises comment contents and a user name; storing the user name and the comment contents, wherein a key name of the user name consists of the comment ID, an object name of the comment information and / or an attribute name of the user name, and a key name of the comment contents consists of the comment ID, the object name of the comment information and / or an attribute name of the comment contents; and storing and creating the comment list of the event, and storing the comment ID in the comment list added to the event. According to the method and the system, the readability of the key name can be improved, and early design development and later maintenance are facilitated, so that the development and maintenance costs are reduced.
Owner:北京思特奇信息技术股份有限公司
ARM based embedded integrated display simulation instrument
InactiveCN105116756AImprove work efficiencyImprove real-time performanceSimulator controlComputer moduleEmbedded software
The invention relates to an ARM based embedded integrated display simulation instrument. The ARM based embedded integrated display simulation instrument is composed of an ARM processing board, a display module, a control module, an audio module, a power supply module, an interface module, display simulation instrument software and the like. Interconnection of a plurality of integrated display simulation instruments is realized through instrument simulation software architecture. The ARM based embedded integrated display simulation instrument has the characteristics of low cost, high reliability, timeliness, simple interface, convenient debugging and the like, can improve the design and development efficiency of a flight simulator, and reduces the debugging and maintenance difficulty. Meanwhile, the ARM based embedded integrated display simulation instrument has an embedded software and hardware environment, not only can provide functional verification for a POP design, but also can provide verification for performance indexes, data interfaces and the like.
Owner:BEIJING INVENT MEDIATEK
Microwave medium ceramic with low dielectric constant and low loss and preparation method thereof
ActiveCN101817674ASimple preparation processFacilitate mass production and application promotionCeramicsTemperature coefficientLithium carbonate
The invention discloses a microwave medium ceramic with a low dielectric constant and a low loss and a preparation method thereof and belongs to the technical field of a microwave medium ceramic material. The microwave medium ceramic has the characteristics of low dielectric constant, low loss, high temperature stability, continuously adjustable dielectric constant and high machining property. The composition of the microwave medium ceramic is expressed by a general formula: (Zn1-xLi2x)O.ySiO2+a weight percent of TiO2, wherein x is more than or equal to 0 and less than or equal to 1; y is more than or equal to 0.5 and less than or equal to 1; a is more than or equal to 0 and less than or equal to 20; and a is mass percentage in (Zn1-xLi2x)O.ySiO2. The microwave medium ceramic is prepared by the following steps of: 1) confecting zinc oxide, lithium carbonate and silicon dioxide according to the general formula (Zn1-xLi2x)O.ySiO2+a weight percent of TiO2, mixing and pre-burning the mixture to synthesize a main component and crushing the main component into powder; 2) putting powdery TiO2 into the main component and mixing to obtain a powdery mixture; and 3) blanking and sintering the powdery mixture. A specific tau f modifier TiO2 is selected, so the material has a dielectric constant of between 7 and 9, a high quality factor value of Q*f0 and adjustable frequency temperature coefficient tau f. Simultaneously, the material has the advantages of simple preparation process, no special requirement on equipment and workshop environment and contribution to batch production, application and popularization.
Owner:JIANGSU JIANGJIA ELECTRONICS
System and method for integrating product design and environment influence evaluation in CAD system environment
InactiveCN105956287AImprove development efficiencyImprove design and development efficiencyInformaticsSpecial data processing applicationsIntegrated systemsCad system
The invention provides a system for integrating product design and environment influence evaluation in a CAD system environment. The system comprises a product model importing module which imports a target product model from a CAD system, a product life cycle integrated modeling module which performs characteristic-based product state-process operation modeling to realize life cycle data integrated management, a product environment influence analysis module which is connected with the product life cycle integrated modeling module and performs product life cycle evaluation to generate an environment influence quantitative analysis result, and a product environment influence analysis result output module which is connected with the product environment influence analysis module and displays an environment influence analysis result in multiple forms. Meanwhile, the invention provides an integrating method of the integrating system. According to the system and method, integrated management of product design information and process design information is realized, product concurrent development is supported, and product design and development efficiency is improved; and integration of product design and environment influence evaluation is favorable for design and development of environment-friendly products.
Owner:SHANGHAI JIAO TONG UNIV
Automobile bumper electromagnetic characteristic simulation analysis and evaluation method
ActiveCN112364503AEasy Design EvaluationLow costSustainable transportationDesign optimisation/simulationRadarEngineering
The invention relates to the technical field of radar electromagnetic simulation, in particular to an automobile bumper electromagnetic characteristic simulation analysis and evaluation method. The method comprises the steps: performing structural analysis on a designed bumper, obtaining structural parameters and material parameters of an electromagnetic window corresponding to the millimeter-waveradar, inputting the material parameters into electromagnetic simulation software, setting simulation boundary conditions and excitation conditions to simulate an electromagnetic wave to irradiate the electromagnetic window, extracting simulation data, and evaluating the designed bumper according to the simulation data. The electromagnetic wave simulation experiment is carried out on the designedbumper in the simulation software, whether the bumper meets the requirement or not can be accurately evaluated without physical experiment operation, bumper design evaluation is facilitated to a great extent, the cost is low, and great popularization value is achieved.
Owner:DONGFENG MOTOR CORP HUBEI
Tab processing method and tab processing device
ActiveCN104199960AImprove user experienceConducive to design and developmentSpecial data processing applicationsWeb data browsing optimisationUser needsOperating system
An embodiment of the invention discloses a tab processing method and a tab processing device. The tab processing method applied to a browser of an electronic device includes acquiring a preset smart background configuration file after detecting a new tab building instruction; running the smart background configuration file to execute the following steps of acquiring an identifier corresponding to smart background data to be utilized currently, judging whether the acquired identifier is the same with or different from an identifier which is selected to ignore by a user and saved locally in advance, if different, then acquiring the smart background data to be utilized currently; rendering the tab which is requested according to the new tab building instruction according to the smart background data to be utilized currently so as to display the background of the new tab on the basis of the smart background data to be utilized currently. According to the scheme, the background of the tab is configured smartly on the basis of requirements of the user, and accordingly user's experience is improved.
Owner:ZHUHAI BAOQU TECH CO LTD
Ultra-high-speed photoelectric camera system test platform for shooting high-frequency collisions of mechanical transmission system
ActiveCN103558026AConducive to design and developmentSolve the problem of high frequency collisionMachine gearing/transmission testingPhotogrammetry/videogrammetryUltra high speedSystem testing
The invention provides an ultra-high-speed photoelectric camera system test platform for shooting high-frequency collisions of a mechanical transmission system and relates to the field of high-speed photography. The ultra-high-speed photoelectric camera system test platform comprises a triggering module connected with a high-speed camera. When the mechanical transmission system performs the high-frequency collisions, the triggering module sends a triggering signal to the high-speed camera according to the strain force changes of collision objects of the mechanical transmission system or the displacement changes between the collision objects or the currents between the collision objects to control the high-speed camera to shoot the high-frequency collisions.
Owner:CHONGQING UNIV +1
Wearable device, watchband identification method thereof and computer readable storage medium
PendingCN113406999AImprove user experienceConvenient automatic switchingDetails for portable computersComputer hardwareEmbedded system
The invention discloses wearable equipment, a watchband identification method thereof and a computer readable storage medium. The wearable device comprises a wearable device body, watchbands, a Hall sensor and a control chip, wherein the watchbands comprise a first watchband and a second watchband which are connected with the two sides of the wearable device body respectively, and magnetic parts are arranged at the ends, used for being connected with the wearable device body, of the first watchband and the second watchband; the Hall sensor is arranged on the wearable equipment body, is located at the joint of the wearable equipment body and the watchbands, and is used for acquiring first magnetic piece information of the first watchband and second magnetic piece information of the second watchband; and the control chip is arranged on the wearable equipment body and is used for determining a current watchband according to the first magnetic piece information, the second magnetic piece information and a preset mapping relation. According to the invention, automatic identification of the watchband of the wearable device can be realized.
Owner:GEER INTELLIGENT TECH CO LTD
Switch drive method based on universal model
ActiveCN104899041AConducive to design and developmentGood programming versatilitySpecific program execution arrangementsComputer moduleEngineering
A Switch drive method based on a universal model belongs to the field of constructing Switch universal models, so as to solve the problems that the existing switch drive modules cannot drive multiple switch structures. The method comprises the following steps: step 1-1, determining the variety and the quantity of switches; step 1-2, allowing each end of each switch to be a channel; obtaining the channel number of all the switches based on the variety and the quantity of the switches; determining connection relationships among each channel, and naming all the channels for constructing an equivalent channel name list; using all the named channels respectively as row items and column items of the equivalent channel name list; constructing a model matrix by the space encircled by the row items and the column items of the equivalent channel name list; filling corresponding values in the model matrix based on the connection relationships among each channel, thereby finishing establishing the universal matrix model; step 2, driving the Switch by using the established universal matrix model. The Switch drive method based on the universal model is used for driving the switches.
Owner:HARBIN INST OF TECH
Tab page processing method and device
ActiveCN104199960BImprove user experienceConducive to design and developmentSpecial data processing applicationsWeb data browsing optimisationUser needsOperating system
Owner:ZHUHAI BAOQU TECH CO LTD
A time-domain test and analysis method for dynamic parameters of automotive fluid pumps
ActiveCN111927756BConducive to design and developmentSimple designPump testingPositive-displacement liquid enginesTime domainData acquisition
The invention discloses a method for testing and analyzing dynamic parameters of an automobile fluid pump in the time domain. The fluid pump includes a rotor, blades, a cylinder body, a clutch armature and a pulley connected to the long axis of the rotor. There is a compression chamber in the pump, which includes the following steps: S1: fluid Calibration of pump characteristic position information points, including calibration of internal characteristic position information points and external characteristic position information points; S2: Position signal acquisition, time-domain trigger conversion of photoelectric signals through photoelectric sensors, and transmission of dynamic parameter information of fluid pumps to high-speed data acquisition instruments Real-time recording, combined with the recording of external photoelectric time-domain signals and the synchronization of dynamic parameter time-domain signals, accurately quantifies and records the rotational performance of the fluid pump; S3: Time-domain analysis of dynamic parameters of characteristic position information points, specifically S31: Rotational performance analysis and S32: fast fault component positioning analysis, the present invention mainly solves the problem that the excitation response signal of the fluid pump rotating body does not correspond to the time domain of the structural rotation position signal during operation.
Owner:CHONGQING BUILDING VEHICLE USE AIR CONDITIONER
Pump valve assembly and sphygmomanometer using same
PendingCN113842125ARealize automated productionConducive to design and developmentAngiographySphygmomanometerProduction line
The invention discloses a pump valve assembly and a sphygmomanometer using the same. The pump valve assembly comprises a first inflator pump (11), a second inflator pump (12), a first air release valve (13), a second air release valve (14) and a pipeline assembly, and the pipeline assembly is respectively communicated with the first inflator pump (11), the second inflator pump (12), the first air release valve (13) and the second air release valve (14); and the pump valve assembly is characterized by further comprising an assembly support (15), the first inflator pump (11), the second inflator pump (12), the first air release valve (3) and the second air release valve (14) are all arranged on the assembly support (15), the assembly support (15) is provided with a first opening and a second opening (151), and the pipeline assembly is communicated with an air bag (4) and a pressure sensor (16) through the first opening and the second opening (151) in an air flow manner. The pump valve assembly 1 can be produced independently, and subjected to accurate calibration and after-sale maintenance, and production line sub-module independent production is better facilitated.
Owner:JIANGSU YUYUE MEDICAL EQUIP&SUPPLY CO LTD +3
Method and apparatus for implementing hardware level verification
ActiveCN100580638CMinor changesConducive to design and developmentSoftware testing/debuggingComputer architectureJoint Test Action Group
The invention discloses a method and a device for realizing hardware level verification. The device comprises a basic development and verification board and an extended development and verification board which are connected with each other through an AMBA bus of a high-quality microprocessor bus framework, wherein the basic development and verification board reads and writes a CPU register through an EJTAG interface of a reinforced joint test action group and executes CPU IP verification, and the basic development and verification board and the extended development and verification board execute the CPU IP verification and SOC (system on a chip) verification through the AMBA bus. The method and the device have the advantages that: firstly, structures of the basic development and verification board and the extended development and verification board not only can conveniently realize design and development and functional verification of an SOC but also can complete the development and verification work of IP and particularly CPU IP; secondly, the cost can be reduced; and thirdly, system correction and extension are easier and realization is flexible and convenient.
Owner:北京神州龙芯集成电路设计有限公司
A processing method for connection holes of carbon fiber composite material plates
The invention relates to a machining method of carbon-fiber composite material plate connecting holes. The machining method comprises the following steps that 1, the basic diameter of the connecting holes and the deformation amount in the hole depth direction are calculated; 2, the connecting holes are machined according to the basic diameter of the connecting holes and the deformation amount in the hole depth direction; and 3, a structural adhesive is coated on the periphery of each connecting hole and cured at room temperature. Compared with the prior art, the connection holes obtained through the machining method greatly improves the connection strength under the premise of meeting the relevant technical requirements, reduces the stress concentration in the peripheral area of the connection holes, reduces the risk of cracking or layering failure of the carbon-fiber composite material in the area and delays the time for hole peripheral layering failure, so that the connection strength of the carbon-fiber composite material parts with the connecting holes is improved, and the service life is prolonged.
Owner:TONGJI UNIV
Three-dimensional spacer fabric with hidden type ambient lamps
InactiveCN111705394AMeet individual needsConducive to design and developmentWeft knittingLighting elementsDesign engineerEngineering
The invention discloses a three-dimensional spacer fabric with hidden type ambient lamps. The three-dimensional spacer fabric comprises a spacer layer. At least one light-emitting body is inserted inthe spacer layer. The two sides of the spacer layer are each provided with a fabric layer, and at least one fabric layer on one side has a light-permeable effect. The three-dimensional spacer fabric is designed in the scheme and is a fabric which is formed in a tatting mode, a warp knitting mode, a weft knitting mode or other knitting mode and has a three-dimensional structure and the spacer layer, the light-emitting bodies are embedded in the spacer layer in a warp insertion or weft insertion mode so as to be protected, and abrasion is reduced. The light-emitting bodies are distributed in a customized mode according to demands of customers, the personalized requirements of the customers can be quite well met, and the designing and developing by design engineers and the producing and machining in a production workshop are facilitated.
Owner:上海凯密科实业有限公司
Robot office system
PendingCN111709701ARealize office automationConducive to design and developmentSoftware designOffice automationTechnology developmentLogisim
The invention provides a robot office system. The office system comprises an activity control module, a main window module, a function control module and an attribute editing module. The system is based on a .Net technology development platform and a python automation office technology. A visual design module in the system can completely record the process of simulating manual operation in a mainwindow module in a dragging mode; meanwhile, different variables and parameters can be defined in the main window module to declare flows of different logics and algorithms; after the complete processis developed, the process can be executed 24 hours a day to the maximum extent according to the requirements of actual business volume. According to the invention, an automatic computer operation business process can be realized, and visual design and development of different business scenes, business requirements, operation processes, algorithms and logics are completed through a development program set by a client, so office automation of computer operation which originally needs to be completed manually is realized.
Owner:北京艾陌时信息技术有限公司
Ultra-high-speed photoelectric photography system test platform for high-frequency collision of mechanical transmission system
ActiveCN103558026BConducive to design and developmentSolve the problem of high frequency collisionMachine gearing/transmission testingPhotogrammetry/videogrammetryUltra high speedSystem testing
Owner:CHONGQING UNIV +1
Automatic detection system and method of technical state of electronic spare parts based on pxi bus
InactiveCN103454522BEasy to separateConducive to design and developmentElectronic circuit testingElectrical measurement instrument detailsDisplay deviceCopper foil
The invention discloses an electronic replacement part technology state automatic detection system based on a PXI bus. The replacement part technology state automatic detection system based on the PXI bus comprises a controller with automatic detection system software, a PXI system, a VPC connector, an adaptor, a keyboard connected with the controller and a displayer, wherein the PXI system is formed by a PXI case and more than two PXI modules inserted into corresponding inserting grooves of the PXI case; the adaptor comprises a system self-test adaptor; the controller is connected with the PXI case through the PXI bus; signal ends of all PXI modules are connected with the self-test adaptor or a special test adaptor through the VPC connector; the system self-test adaptor comprises a standard current source, a standard resistor R, a reference source circuit, a square-wave generator, a signal route N1, a signal route N2, a signal route N3, a first copper foil short-circuit wire, a second copper foil short-circuit wire, a third copper foil short-circuit wire, a fourth copper foil short-circuit wire and a fifth copper foil short-circuit wire. The replacement part technology state automatic detection system based on the PXI bus has the advantages that due to the adoption of the adaptor, separating performance of an electronic replacement part to be tested and a PXI port is good, the system has good universality and expansibility, polytypic signals can be tested, and detection automation degree is high.
Owner:ORDNANCE TECH RES INST OF THE GENERAL ARMAMENT DEPT PLA
Two-degree-of-freedom single hinged profiling mechanism
InactiveCN101940092BCompact structureProfile ControllableAgricultural machinesAgricultural engineeringFixed position
The invention discloses a two-degree-of-freedom single hinged profiling mechanism, belonging to the technical field of agricultural machinery. In the invention, a single hinged joint and a piston gas-liquid energy accumulator are connected with a profiling part through a hinged front rack, and one end of a piston rod is provided with an upper profiling overtravel-limit switch and a lower profiling overtravel-limit switch for a hydraulic control system; when the profiling part makes profiling motion around the single hinged joint due to external force, the piston rod makes stretching motion, corresponding fore change is generated at the same time, and the force balance of the profiling mechanism is rebuilt; when the profiling quantity is excessive, the hydraulic control system and a serialgas-liquid energy accumulator group are utilized to change the stretching direction of the piston rod, thereby changing the profiling tendency; and the piston rod also can be locked on a fixed position, so that the two-degree-of-freedom mechanism is converted into a rigid triangular mechanism, thereby facilitating the transportation and the transfer of the profiling part. The mechanism solves theproblem of unstable operation quality of the traditional single hinged mechanism, has the advantages of compact structure, controllable profiling, convenient adjustment, strong adaptability and high automaticity, can realize remote control, and is beneficial to the design and the exploitation of agricultural machinery products.
Owner:JILIN UNIV
a decorative lamp
ActiveCN101105269BIncrease profitReduce production preparation costsNon-electric lightingPoint-like light sourceEngineeringUtilization rate
Owner:广东弘明智能照明科技有限公司
A kind of color masterbatch prepared based on active monomer in-situ polymerization and preparation method thereof
A method for preparing color masterbatches based on in-situ polymerization of active monomers, the method comprises the following steps: dispersing inorganic pigments in premixed active monomers under continuous stirring, and prepolymerizing into latex blends under the action of initiation; and then The above-mentioned latex blend, blended active monomer, blended active monomer, tertiary dodecyl mercaptan, and ethylbenzene are polymerized in situ by thermal initiation. When the conversion rate of the polymerized product reaches 55% to 60%, the untreated The fully polymerized semi-polymerized product is separated from the polymerized product, and the polymerized product is extruded through an extruder to prepare color masterbatch; the incompletely polymerized semi-polymerized product can be vaporized and recovered by the recovery unit, and after cooling, it is returned to the polymerization tank. The mixed system can be reused after being mixed together, which can effectively improve production efficiency; the colored ABS plastic has a small hue deviation range, good weather resistance, and has little impact on the basic performance of the ABS base resin, so it has good practicability.
Owner:MALION NEW MATERIALS CO LTD
Hash table building method based on cuckoo hash and Bloom filter
ActiveCN108647289BReduce restrictionsImprove space utilizationDatabase indexingBloom filterHash table
The invention relates to a Hash table building method based on cuckoo hash and Bloom filter. The present invention divides the storage space into m groups, each group includes a storage table and n filter tables, each filter table corresponds to a Hash function, and there are m*n different Hash functions; in addition, m*n different Hash functions are selected The Hash function is reserved; define a max_insert value, if the number of operations on a certain input data exceeds the max_insert value, it means that the form filling fails. The table building method provided by the invention effectively improves the space utilization rate and is beneficial to design and development in limited hardware storage space. And there is no limit to the value of m. m can take any value that the designer thinks is appropriate. Compared with many traditional Hash table building methods, it has higher flexibility. Simultaneously, the present invention eliminates the restriction on Hash function selection, and is easier to use.
Owner:PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU +1
Downhole instrument blade connecting structure
PendingCN114165171AFirmly connectedSmooth rotationDrilling rodsDrilling casingsEngineeringScrew thread
The invention provides a downhole instrument wrecking blade connecting structure which comprises a first assembly, a second assembly and a connecting nut used for connecting and fixing the first assembly and the second assembly, four bosses are distributed at one end of the connecting nut in the circumferential direction, and the diameter of the connecting end of the first assembly is smaller than or equal to the inner diameter of the connecting nut. The outer wall of the connecting end of the first assembly is provided with step grooves used for clamping the bosses in the circumferential direction, and the outer wall of the connecting end of the first assembly is further provided with installation grooves corresponding to the four bosses and connected to the step grooves, and one end of the connecting nut is connected into the installation grooves of the first assembly in a sleeved mode through the bosses. The connecting end of the second assembly is provided with an external thread and is fixedly connected with the other end of the connecting nut in a threaded mode. The problems that an existing structure is complex, and inconvenience is brought to follow-up product design and instrument maintenance are solved. Belongs to the technical field of downhole instruments.
Owner:贵州航天凯山石油仪器有限公司
Real-time tone mapping method based on cumulative histogram
PendingCN114511455AConducive to design and developmentSmall amount of calculationImage enhancementStill image data indexingHistogramAlgorithm
The invention discloses a real-time tone mapping method based on an accumulative histogram. The method comprises the following steps: carrying out histogram smoothing processing to obtain a smoothed histogram; setting a brightness offset coefficient and a contrast factor to adjust the smoothed histogram; calculating a cumulative histogram according to the adjusted smoothed histogram; performing transformation through the cumulative histogram to obtain a global mapping curve; a unique histogram smoothing algorithm is adopted, the histogram is effectively processed in all dimensions, the histogram is protected to be processed in the horizontal direction and the vertical direction, the wide dynamic effect is achieved without depending on a single frame of a multi-frame image, the overall occupied calculation amount is extremely low, the real-time performance is achieved while the wide dynamic effect is guaranteed, and the real-time performance is achieved. And the smoothing algorithm does not use a complex calculation process and excessive parameters, so that resources are greatly saved, and the operation efficiency is improved.
Owner:SHANGHAI INFOTM MICROELECTRONICS
Microwave medium ceramic with low dielectric constant and low loss and preparation method thereof
ActiveCN101817674BHigh dielectric constantContinuously adjustable dielectric constantCeramicsElectricityMicrowave
The invention discloses a microwave medium ceramic with a low dielectric constant and a low loss and a preparation method thereof and belongs to the technical field of a microwave medium ceramic material. The microwave medium ceramic has the characteristics of low dielectric constant, low loss, high temperature stability, continuously adjustable dielectric constant and high machining property. The composition of the microwave medium ceramic is expressed by a general formula: (Zn1-xLi2x)O.ySiO2+a weight percent of TiO2, wherein x is more than or equal to 0 and less than or equal to 1; y is more than or equal to 0.5 and less than or equal to 1; a is more than or equal to 0 and less than or equal to 20; and a is mass percentage in (Zn1-xLi2x)O.ySiO2. The microwave medium ceramic is prepared by the following steps of: 1) confecting zinc oxide, lithium carbonate and silicon dioxide according to the general formula (Zn1-xLi2x)O.ySiO2+a weight percent of TiO2, mixing and pre-burning the mixture to synthesize a main component and crushing the main component into powder; 2) putting powdery TiO2 into the main component and mixing to obtain a powdery mixture; and 3) blanking and sintering the powdery mixture. A specific tau f modifier TiO2 is selected, so the material has a dielectric constant of between 7 and 9, a high quality factor value of Q*f0 and adjustable frequency temperature coefficient tau f. Simultaneously, the material has the advantages of simple preparation process, no special requirement on equipment and workshop environment and contribution to batch production, application and popularization.
Owner:JIANGSU JIANGJIA ELECTRONICS
A general model-based switch driving method
ActiveCN104899041BConducive to design and developmentGood programming versatilityCreation/generation of source codeGeneral matrixComputer module
The Switch driving method based on the general model belongs to the construction field of the general model of Switch. In order to solve the problem that the existing switch driving module cannot drive various switch structures. Step 11, determine the type and quantity of switches, step 12, make each end of each switch a channel, obtain the channel numbers of all switches according to the type and quantity of switches, determine the connection relationship of each channel, and The channels are named, so as to construct the equivalent channel name table, and all the named channels are respectively used as the row items and column items of the equivalent channel name table, which are surrounded by the row items and column items of the equivalent channel name table The space constitutes the model matrix, and fills in the corresponding values in the model matrix according to the connection relationship of each channel, so as to complete the establishment of the general matrix model. Step 2 is to realize the driving of the Switch by using the established general matrix model. It is used to drive the switch.
Owner:HARBIN INST OF TECH
Automobile fluid pump dynamic parameter time domain testing and analyzing method
ActiveCN111927756APerfect designImprove evaluation accuracyPump testingPositive-displacement liquid enginesClutchCylinder block
Owner:CHONGQING BUILDING VEHICLE USE AIR CONDITIONER
Processing module capable of reconstructing signals based on VPX bus
InactiveCN101794268BProcessing speedEasy to handleElectric digital data processingDigital dataHigh density
The invention relates to a processing module capable of reconstructing signals based on a VPX bus, comprising a high-speed board card, a front panel, a radiating cover board, a module lifter, a positioning pin and a locking mechanism part. The high-speed board card comprises a VPX 6U standard high-speed printing board, a power supply circuit, an MPC7448 processor chip, an MV64460 bridging chip, aFPGA (Field Programmable Gate Array) chip, a DDR SDRAM (Digital Data Receiver Synchronous Dynamic Random Access) and FLASH, a high-speed high density electric connector, an opto-electrical converter and a kilomega Ethernet interface. The high-speed board card comprises four processing nodes, each processing node comprises one MPC7448 processor chip, one MV64460 bridging chip and the DDR SDRAM; the MV64460 bridging chip is respectively connected with the MPC7448 processor chip and a storage DDR SDRAMFPGA through a CPU interface, the DDR SDRAM interface and a Device interface.
Owner:CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST +1
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