Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

133results about How to "Overcome flexibility" patented technology

Control method of monitoring ball machine

The invention discloses a control method of a monitoring ball machine. The method comprises the following steps of (1) vertically and horizontally dividing a to-be-monitored space into a plurality of small partitions, and setting a shooting focal distance for each small partition; (2) setting corresponding preset positions for a central point position and an edge point position of each small partition, and storing horizontal position information, vertical position information and shooting focal distance information of the ball machine; (3) reading a video frame, and performing target detection on the video frame; (4) according to direction information of a detected target in a monitoring scene, mapping the target to the corresponding preset position; (5) calling the preset position by the ball machine to acquire a monitored image. The defects that the automation degree of control is not high, the real-time property and the flexibility are not enough, and human manual interference is required in a ball machine of the traditional video monitoring system are overcome; the control method is convenient in operation, high in automation degree of control and good in instantaneity, and is particularly good in capture effect on the monitored image of a quickly moving target.
Owner:HUAZHONG UNIV OF SCI & TECH

A semiconductor memory aging test system and method

The invention belongs to the technical field of semiconductor memory test and discloses a semiconductor memory aging test system and a method. The system comprises a test core board and a test board.The test core board generates a t signal and a power signal according to that instruction of the upper computer, and after the test signal and the power signal are adjusted, the test signal is provided to a DUT, and the DUT output signal is compared with a preset value to obtain a preliminary test result which is partitioned and stored, and is uploaded to the upper computer; the test board is usedfor carrying DUT, providing clock signal and chip selection signal for DUT. A single test board is provided with a plurality of t bits, and DUT aging test can be carried out by a single DUT or by multiple DUTs at the same time. By outputting various types of test signals on the test core board, and adjusting the delay time of the test signal, strengthening the processing of driving, waveform control, and compensating the power signal, and storing the test results in the partitioned storage area respectively, the functions of management of single DUT test process control and failure analysis in aging test are realized, and the same test number of DUT is increased, which reduces the test resource overhead.
Owner:武汉精鸿电子技术有限公司

Method and equipment used for controlling hardware module

The invention provided a method and equipment used for controlling a hardware module. The method comprises receiving call request sent by application program and used for calling the hardware module, packaging identification information of the application program, identification information of the hardware module, location information of a terminal of the hardware module and identification information of terminal equipment, generating authentication request, sending the authentication request to a server to ensure that the server conducts authentication judgment to use permissions of the hardware module according to the authentication request and pre-set authentication strategies, and generating authentication judgment information and returning, receiving the authentication judgment information and judging whether the hardware module is started or not according to the authentication judgment information. When the application program calls the hardware module on the terminal equipment, by conducting authentication judgment to the use permissions of the hardware module to be called, the problem that the prior art limits the use of the terminal equipment is overcome, and flexibility and convenience in the use process of the terminal equipment are improved.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Communication signal modulating and identifying method based on generalized S transformation

The invention provides a communication signal modulating and identifying method based on generalized S transformation. The communication signal modulating and identifying method comprises the following steps of: (1) carrying out analytic signal configuration on an input modulating signal according to the characteristic of an input signal to noise ratio modulating signal to obtain an analytic signal to be used as a signal for carrying out generalized S transformation; (2) configuring a Gaussian window function needed by the generalized S transformation; (3) determining a Gaussian window width factor sigma according to an expression formula of the generalized S transformation; carrying out the generalized S transformation on an input modulation signal by combining short-time Fourier transformation and the Gaussian window function to obtain time-frequency energy distribution images of the modulation signal; and (4) comparing energy images of all modulation signals according to the time-frequency energy distribution images obtained by the step (3) to find out a difference between the time-frequency energy distribution images of all modulation signals which are subjected to the generalized S transformation; selecting a frequency strip quantity with concentrated energy, a maximum value ratio of high-frequency component energy to low-frequency component energy, energy time domain distribution, high-frequency and low-frequency component extreme value time domain distribution and high-frequency component extreme value distribution so as to identify all modulation signals. According to the invention, a high identification rate is achieved under the condition of a low signal to noise ratio, and the method is suitable for modulating and identifying communication signals under a heavy clutter environment.
Owner:BEIHANG UNIV

A method for updating an intelligent contract group based on a block chain

The invention relates to a method for updating an intelligent contract group based on a block chain, the intelligent contract group comprises a proxy contract, a named contract, a service contract anda data contract, and the method comprises the following steps: creating a new version of service contract based on an original service contract; Deploying a new version of service contract on the block chain so as to obtain an address of the new version of service contract; Setting an address indicated by the named contract indication information in the service contract of the new version as theaddress of the original named contract; obtaining an address indicated by the data contract indication information from the original named contract according to the address of the original named contract; and if the address indicated by the obtained service contract indication information is consistent with the address of the original data contract, changing the address indicated by the service contract indication information into the address of the service contract of a new version in the original agency contract. According to the invention, the problem that the service and data cannot be flexibly modified on the block chain when the smart contract needs to be modified or optimized is solved.
Owner:ZHONGAN INFORMATION TECH SERVICES CO LTD

Achievement method of intelligent public transportation network information service system

The invention discloses an achievement method of an intelligent public transportation network information service system. A card swiping reader reads data information including bus card number of a bus card and uploads the data information to a vehicle-mounted server. The vehicle-mounted server receives the bus card data information uploaded by the card swiping reader and updates a card swiping record list. An APP of a mobile intelligent terminal sends access request information carrying the bus card number to a vehicle-mounted wireless router and queries whether the bus card number exists in the card swiping record list or not so as to decide whether the APP of the mobile intelligent terminal is permitted to be connected to vehicle-mounted WiFi. By means of the achievement method of the intelligent public transportation network information service system, the defect that existing vehicle-mounted WiFi access modes including paper verification codes, short message verification codes and the like are not flexible and intelligent and are poor in real-timeliness and the like is overcome, and the vehicle-mounted WiFi can be quickly and intelligently accessed for a passenger who swiped the card. In addition, abundant information service can be provided for passengers by means of the achievement method.
Owner:GUANGDONG UNIV OF TECH

Autonomous vehicle path planning method based on deep convolutional neural network

The invention relates to an autonomous vehicle path planning method based on a deep convolutional neural network. The method comprises the following steps: firstly, building a deep convolutional neural network model; secondly, acquiring a barrier grid map of a vehicle under different driving environments, and a corresponding reference path for building a sample database for the training, verification and testing of the deep convolutional neural network model; and finally, applying the trained and tested deep convolutional neural network model to the autonomous vehicle, inputting the barrier grid map and the reference path into the neural network in real time, generating a key sampling area, and sampling, planning and generating a path from the key sampling area by using a sampling-based path planning algorithm. Through adoption of the autonomous vehicle path planning method, the problem that the prediction error cannot be avoided in an end-to-end method is solved; the running track of an autonomous vehicle is more stable and controllable; the defect of lack in sensitivity and adaptivity of a method for selecting a path from a preset path set is overcome; the path planning flexibility is improved; and meanwhile the path quality is ensured.
Owner:SUN YAT SEN UNIV

Method for testing acoustic emission signal transmission characteristics of helicopter component based on harmonic wavelet packet

InactiveCN102520075AOvercoming the Shortcomings of AnalysisOvercome Analysis Energy LeakageMaterial analysis using acoustic emission techniquesProcessing detected response signalHarmonic waveletsDecomposition
A method for testing acoustic emission signal transmission characteristics of a helicopter component based on a harmonic wavelet packet belongs to the technical field of acoustic emission detection for mechanical helicopter components, and solves the problems of energy leakage and inflexibility of frequency band selection when the acoustic emission signal transmission characteristics are analyzed by a traditional wavelet packet. The method includes: acquiring testing signals obtained by an acoustic emission sensor; determining a decomposition layer number j and a frequency bandwidth B and computing an upper limiting frequency m and a lower limiting frequency n; computing frequency domain and frequency band values of harmonic wavelets; transforming the testing signals by means of FFT (fast Fourier transform) algorithm to obtain frequency domain discrete values; computing wavelet transform of the frequency domain and frequency band values; computing time-domain signals xl (r); obtaining energy E1 by means of transforming; and normalizing the energy E1 to obtain average energy and an energy diagram of the testing signals of the helicopter component to be tested, thereby obtaining the acoustic emission signal transmission characteristics of the helicopter component to be tested. The method is applicable to testing of the acoustic emission signal transmission characteristics of the helicopter component.
Owner:HARBIN UNIV OF COMMERCE

Aircraft designing and manufacturing method based on aerodynamic force mathematical model and aircraft thereof

The invention provides an axial symmetry aircraft manufacturing method based on an aerodynamic force mathematical model, which is characterized by comprising the following steps: 1, establishing an aerodynamic force mathematical model; and 2, performing construction simulation on flight mechanics, a control system, a structural system and an electrical system of the aircraft according to the aerodynamic force mathematical model, and manufacturing the aircraft according to a construction simulation result. The method is suitable for an axisymmetric aircraft or an approximately axisymmetric aircraft with any number of control surfaces, the aerodynamic mathematical model starts from rudder deflection of each control surface instead of controlling rudder deflection channel combination, the model expression is simplified, the limitation of a control strategy is got rid of, the defects of an existing linear mathematical model and an existing nonlinear mathematical model in the aspects of workload, data accuracy, use flexibility and the like are overcome, the advantages of the linear mathematical model and the advantages of the nonlinear mathematical model are considered, and efficiency is improved.
Owner:SHANGHAI INST OF ELECTROMECHANICAL ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products