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83results about How to "Solve access difficulties" patented technology

Modeling method of plane secondary envelope torus worm-drive worm gear hob tooth profile

The invention relates to a modeling method of a plane secondary envelope torus worm-drive worm gear hob tooth profile. The method comprises the following steps: 1) giving initial design parameters; 2) calculating sum which corresponds to an initiating terminal; 3) obtaining point coordinates on an A tooth face; 4) judging whether the point coordinates are located in the working range of a hob or not, if yes, turning to the step 5, and if not, turning to the step 8; 5) obtaining the point coordinates on the A tooth face; 6) obtaining a coordinate of a middle point; 7) modifying a value, turning to the step 3, and obtaining intersecting lines of a series of intersecting planes and a tooth face of a worm gear hob basic worm; 8) modifying a tail end, and obtaining coordinates of points under the tail end and a middle point; 9) obtaining coordinates of points on a B tooth face and a middle point, wherein the B tooth face is the same with the A tooth face in the tail end; 10) obtaining point coordinates on a tooth root circular arc face; 11) obtaining point coordinates on a main cutting edge; 12) building an axial tooth profile model of a worm gear hob; and 13) building a curved face model of the worm gear hob basic worm. The method is free of building of a solid model, easy to achieve, low in modeling cost, and high in modeling precision.
Owner:FUZHOU UNIV

Method for recognizing sound-groove based on affection compensation

InactiveCN101226742AImprove the immunityExtended Modeling InformationSpeech recognitionVoice changeSpeech sound
The invention relates to a sound-groove identification method based on emotion compensation. The emotion compensation includes three portions of emotion detection, character compensation and emotion expansion, comprising of calculating voice emotion factors to be according to the emotion detecting technique, compensating the voice change caused by emotion change respectively from the two layers of character and mode and finally improving robustness of the sound-groove identification technique to the emotion change. The invention has the advantages that the invention breaks through the inconsideration of sound-groove emotion change of the existing sound-groove identification technique, deals with the voice change caused by emotion change from the two layers of character and mode and strengthens resisting power to the voice emotion drift. The character layer standardizes the voice feature within the modeling ability of the training model by means of emotion degradation, normalization and barrier to reach the purpose of inhibiting the influence of the user emotion on the identification property. The mode layer obtains large scale emotion voices by employing the reverse way of synthesizing emotion voice by emotion changing rule, thereby greatly expanding the modeling information of the sound-groove model and resoling the difficulty of obtaining emotion data.
Owner:ZHEJIANG UNIV

Method for predicting inbound and outbound passenger flow of urban rail transit station

ActiveCN108694463AEffectively predict travel volumeImpact Effective AnalysisForecastingTraffic forecastBuilt environment
The invention discloses a method for predicting an inbound and outbound passenger flow of an urban rail transit station. The method comprises the steps of firstly, counting an average inbound and outbound passenger flow of an existing rail transit station on weekdays according to an automatic ticketing system; then, respectively obtaining built environmental elements within the range of 500 m at peripheries of the existing rail transit station and new rail transit station; establishing a regression model of the average inbound and outbound passenger flow data of the existing rail transit station on weekdays and the built environmental elements within the range of 500 m at the periphery of the existing rail transit station, and substituting the built environmental elements within the rangeof 500 m at the periphery of the new rail transit station into the regression model to obtain an average inbound and outbound passenger flow prediction value of the new rail transit station on weekdays. By use of the method for predicting the inbound and outbound passenger flow of the urban rail transit station, an influence of built environments at the periphery of the station on inbound and outbound passenger flows can be effectively analyzed, and further the passenger flow of the new rail transit station is predicted based on the influence.
Owner:SOUTHEAST UNIV

Flexible micro-nano electrode array implantable chip and production method thereof

InactiveCN110840431AReal-time and efficient detection technologyHigh activityDiagnostic recording/measuringSensorsNucleusElectro physiology
The invention provides a flexible micro-nano electrode array implantable chip and a production method thereof. The micro / nano electrode array implantable chip sequentially comprises a base layer, an electroconductive layer and an insulating layer from bottom to top. The base layer made of a flexible material is of a T-shaped structure with a pointed front end. The electroconductive layer formed onthe base layer is used for detecting dual-mode neural signals in a plurality of nucleus regions of the brain. The electroconductive layer comprises a dual-mode detection electrode array formed at thefront end of the base layer, and the dual-mode detection electrode array is used for detecting the dual-mode neural signals in the nucleus regions of the brain. The dual-mode detection electrode array comprises a plurality of electrophysiological detection sites and a plurality of electrochemically sensitive detection sites, which are arranged along the longitudinal direction of the front end anddistributed in a plurality of to-be-detected nucleus regions. The insulating layer is made of a flexible material. The flexible micro-nano electrode array implantable chip and the production method thereof have the advantages that an effective detection measure and an effective detection tool are provided for long-term detection of the neural signals, and the chip is of great significance in terms of reduction of inflammations in the brain, detection of multiple brain regions, lesion discovery based on functional positioning by two types of the neural signals, and the like.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI

Robot behavior learning model based on utility differential network

InactiveCN102063640ASolve access difficultiesSolve the problem of difficult knowledge acquisitionBiological modelsOffline learningDecision networks
The invention relates to a robot behavior learning model based on a utility differential network, which comprises a utility fitting network unit, a differential signal calculating network unit, a confidence evaluating network unit, an action decision network unit, an action correcting network unit and an action executing unit. The model realizes the offline learning process and the online decision process. The utility fitting network unit calculates and obtains a utility fitting value of a state after action is executed; the differential signal calculating network unit is used for calculatinga differential signal; the confidence evaluating network unit outputs the confidence obtained by calculating to the action correcting network unit; the action decision network unit outputs an action selecting function; and the action correcting network unit corrects the action selecting function by utilizing confidence, calculates a probability value selected by each action and outputs the actionwith largest probability to the action executing unit for executing. The invention can more favorably ensure the completeness of a robot for obtaining environmental knowledge and more favorably ensure the timeliness and effectiveness of robot behavior decision.
Owner:BEIHANG UNIV

Underwater topographic data identification and service method and system based on deep learning

The invention relates to an underwater topographic data identification and service method and system based on deep learning, and the method intelligently extracts lake underwater topographic data by abuilt-in deep learning model to form an underwater topographic database, and provides data service for the outside; the constructed system can accurately retrieve the underwater topographic data of the corresponding area according to the lake name or coordinate place input by the user, and the user can download the detailed geographic data of the lake and the surrounding from the system. Meanwhile, the system supports a user to upload lake underwater topographic data which is not covered by the system on line, background personnel upload the lake underwater topographic data and indicate datacontributors after carrying out related auditing, the lake underwater topographic data are used by people, and a certain amount of rewards are given to data providers. According to the invention, theproblem that the current underwater topographic data is difficult to obtain is solved, the requirements of related scientific research institutions and individuals on the underwater topographic data can be greatly met, and the market prospect is wide.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Face recognition method based on stacked convolution sparse denoising auto-encoder

ActiveCN110321777ASolve the difficulty in obtaining easily because of a large amount of labeled dataSolving difficult-to-train problemsInternal combustion piston enginesCharacter and pattern recognitionFeature extractionConvolution filter
The invention belongs to the field of face recognition, and particularly relates to a face recognition method based on a stacked convolution sparse denoising auto-encoder. The method comprises the following steps: alternately connecting a plurality of convolution sparse denoising auto-encoders with a plurality of pooling layers so as to construct a stack convolution sparse denoising auto-encoder model; removing the convolution form of the stack-type convolution sparse denoising encoder model, and training a stack-type sparse denoising auto-encoder model in a blocking mode; forming a convolution filter by using the trained parameters, and realizing a stacked convolution sparse denoising auto-encoder in a convolution form; performing face feature extraction by using a stack convolution sparse denoising auto-encoder, and classifying and recognizing faces by using a classifier. According to the invention, through the deep convolutional neural network which can be trained in an unsupervisedmanner, the face features having similar performance with the supervised deep convolutional neural network are extracted, and the training difficulty is effectively simplified.
Owner:CHONGQING UNIV OF TECH

Method for extracting and purifying cordycepin from cordyceps millitaris mycoderma

The invention provides a method for extracting and purifying cordycepin from cordyceps millitaris mycoderma. The method comprises the steps that the cordyceps millitaris mycoderma is taken as raw materials and smashed through a smashing machine, screened and put in a vacuum drying box to be dried for standby use; a mixed solution of methyl alcohol and water is added in the dried cordyceps millitaris mycoderma powder for steeping; steeped suspension is arranged in a backflow device, backflow is heated and filtered, and an extraction solution is obtained; the extraction solution is extracted through petroleum ether, and a petroleum ether layer is abandoned; the lower remaining solution is decompressed and concentrated to recycle a solvent, and extract of the extraction solution is obtained; after the extract is dissolved through the methyl alcohol, elution is carried out through a silicon gel chromatography column, chloroform and the methyl alcohol are in flowing phases, eluent is recycled, and TLC tracking detection is carried out; the obtained eluent with the cordycepin is decompressed and concentrated, and then is heated through proper methyl alcohol or ethyl alcohol to be dissolved, and low-temperature crystallization is carried out. The technology is easy and controllable, the extraction time is short, the consumption of the organic solvent is little, the organic solvent can be recycled, cost is low, and the obtained cordycepin is high in purity.
Owner:浙江中科宏寿医药科技有限公司

Electronic turnover system

InactiveCN106023476ARealize long-term readable and writable storageSave human effortComplete banking machinesATM softwaresWeb browserData memory
The present invention discloses an electronic turnover system. The electronic turnover system comprises an ATM control application device for controlling an ATM to accomplish daily transaction such as money depositing and withdrawing, query and transfer, saving transaction turnover data, being connected with a turnover log processing server, and implementing TCP / IP communication; a turnover log processing server for receiving the transaction turnover data sent by the ATM control application device, organizing and managing the transaction turnover data to form a transaction turnover log file, forwarding the log file to a data storage device for storage via an I / O subsystem, receiving a request sent by a web browser, and sending a call instruction to the data storage device via the I / O subsystem according to the request instruction; the I / O subsystem for receiving the log file and the call instruction which are sent by the turnover log processing server and forwarding the log file and the call instruction to the data storage device; and the data storage device for receiving the log file and the call instruction which are forwarded by the I / O subsystem, storing the log file, and responding to the call instruction. The electronic turnover system capable of taking the transaction turnover log of the ATM through the web browser is provided.
Owner:GUANGZHOU KINGTELLER ATM TECH

Method for accessing and managing massive Internet of Things devices

The invention belongs to the technical field of Internet of Things, discloses a mass Internet of Things equipment access and management method, and designs a unified equipment abstract model. The equipment abstract model is used for describing the capability characteristics of the equipment, and the abstract model is used for describing the capability of the equipment and the provided service; and the equipment model is described in the forms of JSON and XML, and the model is uploaded to a cloud system and an equipment end after the equipment model is developed. And the capability characteristics of the equipment are equipment model identification attributes: equipment type, manufacturer, model, protocol type, service supported by the equipment, attribute and control command. According to the method, the steps are simple and clear, the massive heterogeneous equipment is subjected to standardization processing by designing the equipment unified description model, and a very good effect can be achieved. Compared with the existing Internet of Things access technology, the mass Internet of Things equipment access and management method provided by the invention fundamentally solves the problems of difficulty in Internet of Things equipment access, high cost, poor safety and difficulty in interaction.
Owner:XIDIAN UNIV

Permeation coefficient tester for irregular sample under different hydraulic pressure conditions and test method

The invention discloses a permeation coefficient tester for an irregular sample under different hydraulic pressure conditions and a test method. The tester comprises a testbed, a sample fixing deviceand an electronic control system, wherein a water inlet pipe is connected with a filter device; an energy accumulator is arranged between a water outlet of an electric pump and a pipe of a water inletof a water storage container arranged in the middle of the testbed; a water collection container is arranged on the inner side of the testbed; the sample fixing device is of a double-layer structureformed by a round steel barrel on the outer side and a hollow rubber seal kit on the inner side; the electronic control system comprises solenoid valves, a flowmeter, electronic switches of the electric pump, the energy accumulator and the inflator pump as well as a control center, the solenoid valves are arranged on a water outlet pipe of the electric pump, an energy accumulator pipe, an inflatorpump pipe and a lower pipe of the water collection container, and the flowmeter is arranged in the water collection container. The tester can test the permeation coefficients of the irregular sampleunder the different hydraulic pressure conditions, the sample sealing performance is good, test precision is reliable, and automation degree is high.
Owner:SICHUAN UNIV

Manufacturing method of artificial rock core for simulating borehole drilling

The invention discloses a manufacturing method of an artificial rock core for simulating borehole drilling. The manufacturing method comprises the steps of: 1) manufacturing a borehole drilling paraffin blank; 2) manufacturing an artificial rock core blank containing mixed slurry and the borehole drilling paraffin blank prepared in the step 1), wherein the mixed slurry comprises quartz sand, cement, clay and water; and 3) heating the artificial rock core blank prepared in the step 2) to obtain the artificial rock core for simulating borehole drilling. The manufactured artificial rock core is similar to a natural rock core in the aspects of permeability, porosity and other physical properties, and simulates perforating measures in the oil production process; the artificial rock core manufactured by adopting the manufacturing method can be used for researching a damage transformation rule of oil production measures such as perforation fracturing on a stratum, and conducting related indoor simulation experiments; in addition, the whole manufacturing method is simple and safe, raw materials are economical and easy to obtain, and the problem that experimental analysis is limited due tothe fact that natural rock cores are difficult to obtain, unstable in rock physical property, large in complexity and anisotropy difference and the like is solved.
Owner:CHINA NAT OFFSHORE OIL CORP +1
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