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

33results about How to "Improve resource reuse rate" patented technology

MAPSK self-adaptive demodulating system

The invention discloses a MAPSK self-adaptive demodulating system based on characteristics of MAPSK signals and combined with a self-adaptive data transmission frame structure. A self-adaptive signal demodulation processing flow includes the steps of descriptor header capture, bit synchronization, conversion of a rectangular coordinate system into a polar coordinate system, estimation on initial frequency offset and phase offset, RM decoding, carrier tracking, gain control, software decoding mapping, burst type solution and frame synchronization. The step of bit synchronization includes the processes of bit timing offset estimation and trigonometric function interpolation. According to the MAPSK self-adaptive demodulating system, general design for burst self-adaptive demodulation on signals with variable rates (2-45Mbps) and various modulation modes (QPSK, 8PSK and 16APSK) is achieved. The MAPSK self-adaptive demodulating system solves the problem of serious rain attenuation in wireless transmission in the Ku/Ka frequency band through a satellite, and achieves the purpose of meeting different data transmission demands of various types of communication terminals and the purpose of meeting the demand for anti-interference communication of communication satellite systems.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Fusion implementation architecture for national standard digital television ground broadcast demodulator

The invention discloses a demodulator fusion realization architecture of a nationwide standard digital television terrestrial broadcast receiver, which comprises a analog-to-digital conversion module, a midfrequency processing module, a PN data separation module, a blind mode detection module, a channel estimate module, an interference cancellation module, a first general time-frequency transformation processing module, a second general time-frequency transformation processing module and a frequency-domain equalizing module; signals after frequency-domain equalizing are controlled by a first select switch to be input to a multicarrier transformation processing module so as to form frequency-domain multicarrier signals meeting the multicarrier standards, and then enter a QAM demodulation and channel decoding module by a second select switch; or the signals after frequency-domain equalizing are controlled by the first select switch to be input to a third general time-frequency transformation processing module so as to form time-domain single carrier signals meeting the single carrier standards, and then enter the QAM demodulation and channel decoding module by the second select switch to form MPEG TS code stream finally. The demodulator fusion realization architecture not only can realize the fusion of the single carrier and the multicarrier, but also has high resource reusability and low realization complexity.
Owner:MAXSCEND MICROELECTRONICS CO LTD

Method of fermenting Bt by taking blue-green algae biogas slurry as matrix

InactiveCN105296403ALow costHigh potency of finished productBacteriaMicroorganism based processesPesticideProtein content
The invention relates to a method of fermenting Bt by taking blue-green algae biogas slurry as a matrix, belonging to the technical field of pesticides. The method of fermenting the Bt by taking the fresh blue-green algae biogas slurry as the matrix comprises the steps of material selection, blue-green algae biogas slurry preparation, Bt GIM1.32 culture activation, fermenting and drying. The method has the beneficial effects that 1, compared with the conventional substrates of biogas residue, Brewer's grains, corn flour, soybean cake powder, rice bran and wheat bran, the fresh blue-green algae biogas slurry can greatly lower the Bt production cost; 2, the blue-green algae biogas slurry fermented for two months is used to prepare the Bt, the finished crystal protein content of 1.87g/L, the virulence titer of 679.89IU/mu. L and LC50 0.353mL/L are all greater than those of Bt prepared under the same conditions by using the conventional culture mediums; 3, the toxin producing performance is better than that of a conventional LB culture medium as a whole, the finished product titer is high, the dispersibility is good, the quality is good, and meanwhile the recycling rate of blue-green algae is increased; 4, mass production can be performed after amplification according to a ratio.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

Equipment for single track tunnel inverted arch construction

The invention discloses equipment for single track tunnel inverted arch construction, and relates to the technical field of inverted arch construction. The equipment for single track tunnel inverted arch construction comprises a horizontal stabilizing fixing bottom plate and vertical connecting supporting columns, the two sides of the top of the horizontal stabilizing fixing bottom plate are fixedly connected with the bottom ends of the vertical connecting supporting columns separately, and a horizontal stabilizing top plate is fixedly connected to the top ends, far away from the horizontal stabilizing fixing bottom plate, of the vertical connecting supporting columns. According to the equipment for single track tunnel inverted arch construction, rolling wheels can be driven to automatically move or move on the track surface under rotation of an auxiliary motor, therefore, the purpose that maintaining liquid is stirred on the working face on the site is achieved, the functionality of the maintaining liquid is effectively improved through newly-blended mixed curing liquid, the problems of nonuniformity and low efficiency in an manual on-site blending method are avoided, the curing effect is greatly enhanced, the using function of a curing rack is effectively guaranteed, and the safety of the curing rack is improved.
Owner:SANCHU OF CHINA RAILWAY TUNNEL GROUP

Cigarette logistics distribution center information system based on combined prediction method

PendingCN114266395ARealize autonomous and controllableImprove the level of industry intelligence forecastingForecastingMachine learningLogistics managementIndustry transportation
The invention discloses a cigarette logistics distribution center information system based on a combination prediction method, and the system comprises a cigarette demand combination prediction model: constructing a cigarette combination demand model of a time sequence according to impact factors, and carrying out the logistics demand prediction of a cigarette region; the cigarette industrial and commercial finished product pre-library based on the logistics alliance comprises the following steps: establishing the logistics alliance fused by industrial and commercial enterprises, establishing a site selection mathematical model to determine the longitude and latitude of the optimal site selection according to the principles of lowest cost and optimal service, and establishing an industrial enterprise cigarette finished product pre-library in the region where the optimal site selection is located for storing part of cigarettes with high market requirements. Commercial enterprises provide storage and delivery services for the industry; the intelligent warehouse management system associates electronic tags with cigarette carton information based on the RFID technology, carries out precise intelligent management on cigarettes of different industries in a warehouse, realizes warehouse-in and warehouse-out integration, and is in seamless joint with a first engineering system. According to the method, the industrial transportation efficiency is improved, commercial stockout is reduced, and the sorting and distribution timeliness is enhanced.
Owner:CHENGDU BRANCH OF SICHUAN TOBACCO CO

Fusion implementation architecture for national standard digital television ground broadcast demodulator

The invention discloses a demodulator fusion realization architecture of a nationwide standard digital television terrestrial broadcast receiver, which comprises a analog-to-digital conversion module, a midfrequency processing module, a PN data separation module, a blind mode detection module, a channel estimate module, an interference cancellation module, a first general time-frequency transformation processing module, a second general time-frequency transformation processing module and a frequency-domain equalizing module; signals after frequency-domain equalizing are controlled by a first select switch to be input to a multicarrier transformation processing module so as to form frequency-domain multicarrier signals meeting the multicarrier standards, and then enter a QAM demodulation and channel decoding module by a second select switch; or the signals after frequency-domain equalizing are controlled by the first select switch to be input to a third general time-frequency transformation processing module so as to form time-domain single carrier signals meeting the single carrier standards, and then enter the QAM demodulation and channel decoding module by the second select switch to form MPEG TS code stream finally. The demodulator fusion realization architecture not only can realize the fusion of the single carrier and the multicarrier, but also has high resource reusability and low realization complexity.
Owner:MAXSCEND MICROELECTRONICS CO LTD

Mobile terminal APP security interaction system and method thereof

The invention relates to a mobile terminal APP security interaction system and method, the method comprises a secret key agreement process and a message encryption and decryption process, the secret key agreement process specifically comprises the steps that a mobile terminal initiates a request for obtaining an authorization code, and the authorization code is obtained through an APP server and an authorization center; the mobile terminal uploads an authorization code, obtains a unique ID corresponding to the mobile terminal through the business server and the authorization center, and records the unique ID in the business server; the message encryption and decryption process specifically comprises the following steps that: the mobile terminal uploads message data and initiates a message encryption request, and the APP server encrypts the message data and returns the encrypted message data to the mobile terminal; and the mobile terminal sends the encrypted message data to the business server, and the business server carries out decryption processing and message logic processing on the encrypted message data and returns corresponding response information to the mobile terminal. Compared with the prior art, the mobile terminal APP can be effectively prevented from escaping, and the interaction safety of the H5 page embedded in the mobile terminal APP is improved.
Owner:SHANGHAI PUDONG DEVELOPMENT BANK

A mapsk adaptive demodulation system

The invention discloses a MAPSK self-adaptive demodulating system based on characteristics of MAPSK signals and combined with a self-adaptive data transmission frame structure. A self-adaptive signal demodulation processing flow includes the steps of descriptor header capture, bit synchronization, conversion of a rectangular coordinate system into a polar coordinate system, estimation on initial frequency offset and phase offset, RM decoding, carrier tracking, gain control, software decoding mapping, burst type solution and frame synchronization. The step of bit synchronization includes the processes of bit timing offset estimation and trigonometric function interpolation. According to the MAPSK self-adaptive demodulating system, general design for burst self-adaptive demodulation on signals with variable rates (2-45Mbps) and various modulation modes (QPSK, 8PSK and 16APSK) is achieved. The MAPSK self-adaptive demodulating system solves the problem of serious rain attenuation in wireless transmission in the Ku / Ka frequency band through a satellite, and achieves the purpose of meeting different data transmission demands of various types of communication terminals and the purpose of meeting the demand for anti-interference communication of communication satellite systems.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Method and device for multiple platforms to share same PXE server to automatically install OS

The invention belongs to the technical field of computers, and discloses a method and device for multiple platforms to share the same PXE server to automatically install an OS, and the method comprises the steps: obtaining an operating system mirror image file, placing the operating system mirror image file in a corresponding shared directory according to the platform to which the operating system mirror image file belongs, and generating a corresponding configuration file; the server to be tested is connected with the PXE server through the switch; acquiring a request signal of the to-be-tested server, and determining a platform to which the to-be-tested server belongs according to the IP address range of the to-be-tested server; according to the platform to which the to-be-tested server belongs, distributing a corresponding shared directory for the to-be-tested server to select; and after receiving the corresponding shared directory, the server to be tested selects the required mirror image file of the operating system for installation. Different platform servers are enabled to install the OS in one PXE server, the resource reuse rate is improved, management is simplified, and IP confusion is avoided. The technical problem that servers of different platforms cannot install an operating system in one PXE server is solved.
Owner:SHENZHEN TONGTAIYI INFORMATION TECH CO LTD
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