How to Improve integration accuracy patent retrieval - Eureka

Temperature conversion method and a low-power high-precision integrated temperature sensor

ActiveCN104390715ASimple structureReduce power consumptionThermometers using electric/magnetic elementsUsing electrical meansCapacitanceEngineering

The invention relates to a temperature conversion method and a low-power high-precision integrated temperature sensor. The low-power high-precision integrated temperature sensor is composed of a band gap reference circuit with a sensing core, a positive and negative synchronous switch capacitor integral circuit, a current source and a sampling capacitor dynamic element matching module, a clock generating circuit, a divider and buffer circuit and a fully differential analog-to-digital converter. The sensing core circuit in the traditional technology and the band gap reference circuit are combined and integrated, so that the circuit structure is simplified; the current source dynamic element matching module is arranged and thus a base-emitter junction voltage difference in proportion to the absolute temperature is generated, wherein the polarity of the voltage difference changes alternately; with the novel positive and negative synchronous switch capacitor integral circuit, the improved temperature conversion function is completed and the dynamic range utilization rate of the analog-to-digital converter is improved; dynamic element matching is carried out on the sampling capacitor, thereby improving the integral accuracy; and the analog-to-digital converter is used for carrying out quantization processing on an effective temperature signal to provide a digital output. Therefore, the temperature error and circuit power consumption of the sensor can be effectively reduced; and the method and the sensor are suitable for the low-power high-precision temperature sensing application.

View all

Owner:沈阳恒久安泰环保与节能科技有限公司

PFM control-based booster system response speed conversion circuit and control method thereof

PendingCN109617412AImprove integration accuracyIncrease working frequencyEfficient power electronics conversionDc-dc conversionHeavy loadConduction time

The invention relates to a PFM control-based booster system response speed conversion circuit and a control method thereof; the partial voltage at the output end of a circuit is used as a sampling voltage to be compared with the reference voltage of a comparator; an output signal of the comparator and an output signal of a conduction time control circuit act on a PFM module; an output signal of the PFM module and an output signal of a current zero-crossing comparator act on conduction or cut off of a control power tube or a rectifying tube of the driving circuit; when the output end voltage islower than a preset voltage, the power tube is conducted, the rectifying tube is cut off, an inductor performs energy storage and the conduction time control circuit starts timing; and after the preset time is reached, the conduction time control circuit is used for resetting the PFM module to control the driving circuit, the power tube is cut off, the rectifying tube is conducted, and the inductor releases energy to the output end. A load is judged to be a light load or a heavy load according to the duty ratio of the output signal of the current zero-crossing comparator or the output drivingsignal of the driving circuit, the bias current of the comparator is reduced during the light load, and the bias current of the comparator is increased during the heavy load.

PFM control-based booster system response speed conversion circuit and control method thereof

View all

Owner:QX MICRO DEVICES

Collaborative, Incremental Specification Of Identities

ActiveUS20100040227A1Reduce ambiguityHigh precisionPublic key for secure communicationDigital data processing detailsInformation processingDatabase

Methods and systems for collaborative, incremental specification of identities are provided. Users of an information processing system collaborate to define and refine identities of entities, and users can create references for those identities. Relationships among the identifiers implied related keywords that can be used to improve search, navigation, and integration. Relationship factoring can be used to maintain efficient logical and physical representations.

View all

Owner:MORPHISM

Analog-digital conversion circuit for dynamically tuned gyroscope

ActiveCN103338042AImprove integration accuracySimple circuitAnalogue-digital convertersConstant current sourceSpeed measurement

The invention discloses an analog-digital conversion circuit for a dynamically tuned gyroscope, which comprises a divided circuit, an integrating circuit, a logic control circuit, a switching circuit, a shaping circuit, a constant-current source circuit and an output circuit. The analog-digital conversion circuit has the following advantages: (1) as the resistance-type divided circuit is adopted, an integrator can work in a few milliampere state, and the integral accuracy is improved; (2) the ternary widening logic is utilized for replacing the dual logic, the absolute value of the zero position of a ternary logic convertor is small, and the variation of the zero position is also small; (3) the measuring range of the analog-digital conversion circuit disclosed by the invention meets the great dynamic requirement of -600 degrees / s to 600 degrees / s, the clock signal is increased from 128 KHz to 256 KHz to ensure the resolution ratio of angular velocity measurement, and the degree of linearity in the temperature field of [-40 DEG C, +60 DEG C] is less than 8*10<-4>, so the degree of linearity in the entire temperature field range is ensured, and the accuracy of analog-digital conversion is improved.

Analog-digital conversion circuit for dynamically tuned gyroscope

View all

Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES

Electronic current transformer signal reduction method based on Rogowski coil

ActiveCN101577175AAvoid Angle Offset IssuesImprove integration accuracyTransformersInductancesSignal onEngineering

The invention discloses an electronic current transformer signal reduction method based on a Rogowski coil, which is characterized in that: the method comprises the following steps: 1) performing digital integration on signals on the secondary side of an electronic current transformer to obtain an integral output value; 2) calculating a system frequency f according to data y after integration by a zero crossing algorithm; 3) calculating a direct current component z1 of data y(i) after the integration according to the calculated system frequency f by a summation algorithm; 4) obtaining a direct current component z2 of data x(i) before the integration according to the change rate of the direct current component z1 before the integration; and 5) filtering a direct current component z2 in an integration algorithm, and filtering the direct current z1 after the integration by a point-wise attenuation method in the process of digital integration to obtain a final integral output value. The electronic current transformer signal reduction method can filter the direct current components before and after the integration so as to improve the integral accuracy, avoid the angular deviation problem in a lossy integration algorithm, and improve the steady state and transient state indexes of devices.

Electronic current transformer signal reduction method based on Rogowski coil

View all

Owner:GUODIAN NANJING AUTOMATION

Digital integrator implementing method based on ideal reconstruction filter impulse response fitting

InactiveCN104504272AImprove integration accuracySpecial data processing applicationsIntegratorReconstruction filter

The invention relates to a digital integrator implementing method based on ideal reconstruction filter impulse response fitting. An analog signal can be fitted by sampling weighing due to time delay of an ideal reconstruction filter impulse response, so that an integral of the analog signal can be obtained by sampling weighing on an integral of the ideal reconstruction filter impulse response. According to the digital integrator implementing method, the integral of the ideal reconstruction filter impulse response can be calculated off line, and a signal integral is calculated by performing weighted summation on a signal sampling value; therefore, the integral precision is high; the digital integrator implementing method is suitable for a complicated environment in which detected current contains higher harmonic.

View all

Owner:CHANGZHOU UNIV

LED module and display device

ActiveCN112230471AImprove integration accuracyReduced IR dropNon-linear opticsDisplay deviceElectrical connection

The invention discloses an LED module and a display device, and relates to the technical field of display, the LED module comprises an LED substrate, a driving substrate and a connecting structure; the LED substrate comprises a PCB substrate, a plurality of first signal wires and a plurality of LED chips arranged in an array, the LED chips and the first signal wires are arranged on the PCB substrate with the PCB substrate as a substrate, and first poles and second poles of the LED chips are connected with the different first signal wires respectively; the driving substrate comprises a glass substrate, a driving chip and a plurality of second signal wires, the driving chip and the second signal wires are arranged on the glass substrate by taking the glass substrate as a substrate, and one end of each second signal wire is electrically connected with the driving chip; and the first signal wire and the second signal wire are electrically connected through a connecting structure. Accordingto the invention, the IR voltage drop of the signal line between the driving chip and the LED chip can be effectively reduced while the integration precision of the driving chip is improved.

View all

Owner:XIAMEN TIANMA MICRO ELECTRONICS

Collaborative, incremental specification of identities

ActiveUS8224843B2High precisionReduce ambiguityDigital data processing detailsPublic key for secure communicationInformation processingData mining

Methods and systems for collaborative, incremental specification of identities are provided. Users of an information processing system collaborate to define and refine identities of entities, and users can create references for those identities. Relationships among the identifiers imply related keywords that can be used to improve search, navigation, and integration. Relationship factoring can be used to maintain efficient logical and physical representations.

View all

Owner:MORPHISM

Floating magnetic control memristive simulator

InactiveCN109194321ASolve the problem of inequalitySimple structureLogic circuitsHysteresisCapacitance

The present invention discloses a floating magnetic control memristive simulator. The circuit comprises an operational amplifier U1, a current transmitter U2, a multiplying unit U3, a current transmitter U4, a current transmitter U5 and resistors R1, R2, R3 and R4 and a capacitor C1. The resistors R2 and R3 are connected with the operational amplifier U1 to form a subtraction circuit. The currenttransmitter U2, the resistor R4 and the capacitor C1 form an integral operation circuit. The multiplying unit U3 is configured to achieve multiplication. The current transmitter U4 is connected with the current transmitter U5 to achieve current mirror image. The floating magnetic control memristive simulator employs a simulation circuit to achieve a floating magnetic control memristive function, employs the U4 and the U5 to achieve current mirror image so as to solve the problem that the input / output current is not equal, is simple in structure, high in accuracy, small in error and easy to implement, has a 8-shaped tight hysteresis loop feature and coincides with the memristive model features in theory.

View all

Owner:CHANGZHOU UNIV

Two-stage instance layer data integration approach based on fuzzy priority

ActiveCN103164531AHigh precisionGuaranteed integration efficiencySpecial data processing applicationsNODALDefuzzification

The invention discloses a two-stage instance layer data integration approach based on fuzzy priority and belongs to the technical field of data integration. The two-stage instance layer data integration approach based on the fuzzy priority comprises the following steps: determining priority indicators and the weight of each indicator of distributed storage nodes firstly, wherein records to be integrated belongs to the distributed storage nodes, adopting triangular fuzzy numbers to show the fuzzy priority; distinguishing the intensity conflict of an instance layer according to a voting mechanism when data is integrated; if the intensity conflict is weak, adopting the most consistent attribute value to be used as an integrated result; and if the intensity conflict is strong, calculating each record and the membership degree of a positive ideal solution and determining the attribute value adopted by integration by means of construction of a fusion decision matrix of defuzzification. The two-stage instance layer data integration approach based on the fuzzy priority solves the problems of low integrated efficiency of low precision of the integrated result in massive data integration and the like.

View all

Owner:HOHAI UNIV

Big data resource integration method and system based on artificial intelligence, and cloud platform

InactiveCN113239034AImprove accuracyImprove integration accuracyDigital data information retrievalBiological neural network modelsData setEngineering

The invention relates to the technical field of big data and artificial intelligence, in particular to a big data resource integration method and system based on artificial intelligence and a cloud platform. The method comprises the following steps: acquiring a track user data set of a first track and customer description class data on the first track; inputting the trajectory user data set of the first trajectory and the customer description type data on the first trajectory into a first target user data set neural model to determine a mode of a preset resource data integration list from a first initial calculation point to a first termination calculation point in a data integration model, obtaining and inputting the track user data set of the first track and the customer description type data of the first track from the data integration model into the neural model to determine the preset resource data integration list, so that the purpose of improving the accuracy of determining the preset resource data integration list is achieved, the integration accuracy of the preset resource data integration list is improved, and the technical effect of providing optimal track selection for the user is achieved.

Big data resource integration method and system based on artificial intelligence, and cloud platform

View all

Owner:广州云莫凡信息科技有限公司

Inertia pre-integration optimization method based on double-speed numerical integration structure

PendingCN112464432AImprove the real-time performance of calculationNumerical integration is highly adaptableNavigation by speed/acceleration measurementsDesign optimisation/simulationAttitude controlNon linearite

The invention provides an inertia pre-integration optimization method based on a double-speed numerical integration structure, and the inertia pre-integration involved in a common inertia-based combined motion measurement system is a very key link in the system in the application fields of vehicle automatic driving, unmanned aerial vehicle attitude control, motion capture, augmented reality and the like. A double-speed numerical integration structure is introduced into inertia pre-integration of the combined motion measurement system, the double-speed numerical integration structure comprisesa double-speed rotation integration structure, a double-speed speed integration structure and a double-speed position integration structure, and parameters in a linear integration item and a nonlinearintegration item are optimally designed by implementing parameter optimization of the double-speed numerical integration structure. By using the method disclosed by the invention, the motion estimation precision, the calculation real-time performance and the numerical stability of the inertia-based combined motion measurement system can be remarkably improved.

Inertia pre-integration optimization method based on double-speed numerical integration structure

View all

Owner:JIANGSU UNIV

Object recognition device

ActiveUS11247671B2Improve object recognition accuracyImprove integration accuracyExternal condition input parametersElectromagnetic wave reradiationRadiologyIdentification device

An object recognition device includes: a sensor; a storage device; and a processor configured to detect a first object and a second object around the vehicle, initially set, based on a detection position of the first object, an integration determination distance used to determine that the first object and the second object belong to the same object, estimate a traveling direction of the first object based on the sensor detection information, increase the integration determination distance along the traveling direction, after increasing the integration determination distance along the traveling direction, determine, based on the integration determination distance, whether the first object and the second object belong to the same object, and output the first object and the second object as the same object when it is determined that the first object and the second object belong to the same object.

View all

Owner:TOYOTA JIDOSHA KK

On-line verification system for voltage and current transformers

InactiveCN108490380AHigh precisionImprove accuracyElectrical measurementsShielded cableFiber

Provided in the invention is an on-line verification system for voltage and current transformers. The system is composed of a standard transformer, a verified transformer, and a PC machine. The standard transformer consists of a primary sensing unit, an acquisition transmission unit, and a main control module; the primary sensing unit is connected to the acquisition transmission unit connected tothe main control module; and the main control module is connected to the PC machine. A voltage or current signal outputted by the primary sensing unit is transmitted to the acquisition transmission unit at a low-voltage side by a shielding cable for signal processing; the outputted signal is transmitted to the main control module by a first fiber; after framing processing, the processed signal asa standard signal is transmitted to the PC machine. According to the on-line verification system, online verification the voltage and current transformers in operation is realized simultaneously by using one set of acquisition transmission unit and main control module, so that the equipment investment is saved substantially and the complexity of the system is reduced.

View all

Owner:CHINA THREE GORGES UNIV

A dynamic tuning gyroscope analog-to-digital conversion circuit

ActiveCN103338042BReduced integration accuracyImprove integration accuracyAnalogue-digital convertersIntegratorDigital down converter

The invention discloses an analog-digital conversion circuit for a dynamically tuned gyroscope, which comprises a divided circuit, an integrating circuit, a logic control circuit, a switching circuit, a shaping circuit, a constant-current source circuit and an output circuit. The analog-digital conversion circuit has the following advantages: (1) as the resistance-type divided circuit is adopted, an integrator can work in a few milliampere state, and the integral accuracy is improved; (2) the ternary widening logic is utilized for replacing the dual logic, the absolute value of the zero position of a ternary logic convertor is small, and the variation of the zero position is also small; (3) the measuring range of the analog-digital conversion circuit disclosed by the invention meets the great dynamic requirement of -600 degrees / s to 600 degrees / s, the clock signal is increased from 128 KHz to 256 KHz to ensure the resolution ratio of angular velocity measurement, and the degree of linearity in the temperature field of [-40 DEG C, +60 DEG C] is less than 8*10<-4>, so the degree of linearity in the entire temperature field range is ensured, and the accuracy of analog-digital conversion is improved.

A dynamic tuning gyroscope analog-to-digital conversion circuit

View all

Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES

Angle adjusting equipment

PendingCN112388585ADecrease the angle tolerance valueImprove integration accuracyWork benchesEngineeringWorkbench

The invention discloses angle adjusting equipment which comprises a vacuum negative pressure workbench, angle adjusting tables and a push rod assembly; materials to be integrated are placed on the vacuum negative pressure workbench, the angle adjusting tables are arranged on the top face of the vacuum negative pressure workbench in a sliding mode and located on the side faces of the materials to be integrated, and the push rod assembly is used for pushing the materials to be integrated to be horizontal; and the vacuum negative pressure workbench is arranged on a machine frame, and ground feetare installed on the bottom side of the machine frame and are fixed ground feet or rolling wheel ground feet. According to the angle adjusting equipment, the angle adjusting tables are arranged on thetwo sides of the materials, the acting sequence of the two angle adjusting tables is set to be matched with positioning holes which are inclined in the supplementary angle mode in the two sides, so that two references exist in the material integration process, the angle tolerance value can be effectively reduced, and the integration precision is improved.

View all

Owner:ZHANGJIAGANG ELEGANT HOME-TECH CO LTD

A Floating HP Memristor Equivalent Circuit with Bipolar Characteristics

ActiveCN107103929BSimple structureEasy to buildDigital storageCapacitanceResistance capacitance

The invention discloses a floating ground type HP resistance memory equivalent circuit with bipolar characteristic. The floating ground type HP resistance memory equivalent circuit comprises an operational amplifier U1, current conveyors U2 and U3, a multiplier U4, resistors R1 and R2 and a capacitor C1, wherein the resistor R1, the capacitor C1 and the current conveyor U2 are connected to form an integral circuit; the positive input terminal of the operational amplifier U1 is connected with an input signal, and the output terminal is connected with the negative input terminal to perform voltage following; the multiplier U4 realizes signal multiplication; and the current conveyor U3 is connected with the resistor R2 and the output of the multiplier, so that mirroring of an output current and an input current is realized. The floating ground type HP resistance memory equivalent circuit disclosed by the invention has the advantages that an analog circuit is utilized for realizing volt-ampere characteristics of HP TiO2 resistance memory, the structure is simple, and transformation between increment resistance memory and decrement resistance memory can be realized by changing input port connection of the multiplier, thereby being more coincident with the HP resistance memory characteristic.

A Floating HP Memristor Equivalent Circuit with Bipolar Characteristics

View all

Owner:CHANGZHOU UNIV

Production method of touch display screen

ActiveCN102830845BOptimize process flowImprove integration accuracyInput/output processes for data processingAdhesiveFlexible circuits

The invention discloses a production method of a touch display screen. The production method includes the main steps of firstly, preparing alignment marks on induction glass and display screen glass of a capacitive touch screen; secondly, bonding an IC (integrated circuit) and a flexible circuit board to the display screen glass and bonding the flexible circuit board to the induction glass; thirdly, inspecting the display screen glass and the induction glass; fourthly, applying optical adhesive between the display screen glass and the induction glass; fifthly, using a camera of an alignment device to capture the positions of the alignment marks on the display screen glass and the induction glass, allowing a controller of the alignment device to calculate deflection of the display screen glass and the induction glass, and controlling a motor to drive the display screen glass or induction glass to move for correction; and sixthly adhering the display screen glass and the induction glass. Precision in integration of the capacitive touch screen and a display module is improved, production flow of TLI (transport-level interface) products is shortened, rejection rate of products is reduced, product precision is more than doubled, and accordingly product grade and market competitiveness are improved.

Production method of touch display screen

View all

Owner:LEAD COMM

Ellipsoid reflector position adjusting device and method

ActiveCN113741043AImprove integration efficiencyImprove integration accuracyPhotomechanical exposure apparatusMicrolithography exposure apparatusOptical axisOptical table

The invention discloses an ellipsoid reflector position adjusting device and method. The ellipsoid reflector position adjusting device comprises an internal focusing telescope, a light receiving screen, a light source, a light source calibration plate, a lamp chamber position calibration plate, a lamp chamber reference fixing plate and a five-dimensional adjusting mechanism. The lamp chamber reference fixing plate is located on the optical platform, and the lamp chamber position calibration plate is fixed on the lamp chamber reference fixing plate; the five-dimensional adjusting mechanism is located on the upper side of the lamp chamber position calibration plate; the light source calibration plate is positioned on the upper side of the five-dimensional adjusting mechanism; the light receiving screen is positioned above the light source; the internal focusing telescope adjusts the marking center of the light source, the marking center of the lamp chamber position calibration plate and the marking center of the light receiving screen to the same optical axis; and the five-dimensional adjusting mechanism adjusts the ellipsoid reflector, so that the light source is located at the actual first focus of the ellipsoid reflector, and the mark center of the light receiving screen is located at the actual second focus of the ellipsoid reflector. According to the technical scheme provided by the invention, the problems of low position adjustment precision and complex adjustment of the ellipsoidal reflector are solved.

View all

Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD

Transportation network data integration method and device, computer equipment and storage medium

PendingCN113723729AImprove integration accuracyAccurate descriptionResourcesLogisticsCargo vesselComputer equipment

The invention relates to a transportation network data integration method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a transportation network data integration request which carries cargo delivery volume data and a plurality of transit points in a transportation network, wherein the cargo delivery volume data comprises target cargo volume data; according to a pre-integrated transit point shipping strategy, determining a transportation capacity corresponding to the cargo shipping volume data at each transit point, and connecting the determined transportation capacities in series to obtain a comprehensive transportation capacity; distributing the target cargo volume data to the comprehensive transportation capacity according to the pre-integrated transit point shipping strategy; carrying out statistics on the cargo volume data of each transportation capacity in the comprehensive transportation capacity, and determining the transportation capacity corresponding to cargo volume data greater than a preset threshold value; and according to the pre-integrated transfer point shipping strategy and the cargo shipping volume data, adjusting the cargo volume data of the transportation capacity corresponding to the cargo volume data greater than the preset threshold to obtain network integration data of the transportation network. By adopting the method, the transportation network can be accurately described.

Transportation network data integration method and device, computer equipment and storage medium

View all

Owner:SHENZHEN S F TAISEN HLDG (GRP) CO LTD

Method and system for integrating medical data into data based on regional data

PendingCN113643818AImprove integration accuracyImprove integrityMedical data miningICT adaptationMedical emergencyNursing

The invention provides a method and system for integrating medical data into data based on regional data. In an integration process, a first data processing thread simultaneously executes a interactive medical type test and data importance identification on an input first interactive medical data template, the first data processing thread is integrated by using a second interactive medical data template with high importance, the interactive medical type label data, the test identification data and the test interactive medical type data at the same time, that is, when the interactive medical integrated thread is integrated, the influence of data importance on interactive medical integration is also considered, so that an interactive medical integration thread subsequently generated based on the integrated first data processing thread can have higher integration precision on error interactive medical data, and thus the integrity of integration of interactive medical in the interactive medical data is improved.

View all

Owner:上海齐网网络科技有限公司

Integrated pruning strategy based on balanced binary tree

ActiveCN111626418AImprove integration accuracyGood generalization performanceEnsemble learningNeural learning methodsBinary treeEngineering

The invention provides an integrated pruning strategy based on a balanced binary tree, and the structure of a multi-step multi-line ship lock comprises the following steps: S1, initializing a base classifier integrated pool: segmenting a big data set to form a plurality of sub-data sets, and carrying out the training and testing of each sub-data set, thereby forming an initial complete classifierpool; S2, constructing a balanced binary tree to form a final sub-integration; and S3, predicting and classifying new data samples by using the reserved optimal sub-ensemble. According to the method,the technical problems that a fitting phenomenon is easy to generate, a base classifier with too high or too low test precision is difficult to remove, and the generalization performance is not high are solved.