147results about How to "Implementation complexity" patented technology

The invention relates to a communication fuel cell spare power supply system, which comprises a hydrogen generation and storage unit, a fuel cell unit, a DC/DC unit, an output unit, an electric control unit, a routing inspection unit, a monitoring unit and a communication unit, and is characterized in that: the hydrogen generation and storage unit generates hydrogen by using solar or wind energy and releases the hydrogen by absorbing the heat of the fuel cell unit; the fuel cell unit generates direct current electric energy and heat by the electrochemical reaction of the hydrogen and oxygen; the DC/DC unit adjusts and boosts the direct current electric energy and then supplies the direct current electric energy to the output unit; the output unit supplies power to a load when commercial power fails; the electric control unit acquires various data and sends control information to all units; the routing inspection unit acquires all individual cell voltage values for transmission; the monitoring unit displays various parameters and working states and realizes human-computer interaction; and the communication unit performs short-range and long-range communication and monitoring. The power supply system is clean, high efficient, reliable and applicable to various communication spare power supplies.

The invention discloses a traversal control system and method of a driverless automobile based on a hybrid theory. The system comprises a sensing module, a path planning module, a hybrid controller module, a steering executing module and a display module. The sensing module is used for acquiring the vehicle travelling environment and the vehicle operating state; the path planning module is used for planning a path based on the absolute position of a vehicle in a map and the position of the vehicle relative to peripheral obstacles and a lane line; the hybrid controller module comprises a local controller unit and a switching monitoring controller unit; the local controller unit designs a controller meeting a target for working conditions of lane-keeping, lane conversion and emergent collision avoidance; the switching monitoring controller unit driven by different discrete events drives effective mode switching, so that the switching stability is guaranteed; the steering executing module drives a steering motor according to a signal of the hybrid controller so as to realize automatic steering of the driverless automobile; and the display module is used for displaying sensing information, path planning information and control mode information.

This invention relates to a method and system of e-commerce through the consumer registering the businesses number name. A system and method to achievement e-commerce transactions In a public network through Member Name, including,at least terminal devices for consumer, commercial tenants pay device, the card issuing bank payment gateway devices, payment platform devices and the third party logistics unit. Its property is through bundling with the establishment of the card issuing bank payment gateway Member name and their bank cards card number, when consumers apply for e-commerce transactions to the business community, need not submit personal information of bank cards will be able to activate the e-commerce transactions logic, the logic coverage of the state of e-commerce transactions, through unbundling transactions steps to improve the authenticity of transactions, reliability, safety; passage of this invention, consumers can break through the traditional limitations of electronic commerce terminal devices, more convenient, flexible in e-commerce, without worrying about their bank cards leaked confidential information, while businesses can be more convenient and credible conduct of e-commerce; card-issuing banks can develop electronic commerce based on depay without changing existing business processes.

The method and device for eliminating same frequency interference in parallel in TDS-CDMA system includes steps: based on matched filter or based on demodulation symbol generated from united detection to reconstruct interference signal of cell for each cell; superposing signals reconstructed from other interference cells; then removing superposed value of signal reconstructed from other interference cells from the received signal in order to eliminate influence on receiving signal of this cell by interference signals from adjacent cell, executing the steps repeatedly based on number of parallel stage. With lesser complexity of implementation, the method eliminates influence of signals from cells in same frequency to a considerable degree, especially, in malcondition that power of common frequency in adjacent cell is higher than this cell so as to raise performance for receiving signal of this signal.

The invention discloses a quasi-cyclic low density odd-even check code belief propagation decoding method based on oscillation. In the initial iteration, a mean value is used for obtaining normalizing factors alpha and beta, under different signal-to-noise ratios, an extrinsic information value of a check node is dynamically corrected to reduce fluctuation of the extrinsic information value of the check node, the quasi-cyclic low density odd-even check code belief propagation decoding method unites a bit flip method in hard decision decoding to reduce occurrences of the oscillation, decoding performance of transmission data can be improved, and decoding complexity can be reduced. Decoding methods of soft decision and hard decision are combined to obtain big decoding gains. Balancing states of complexity and decoding efficiency of a decoder are achieved due to the facts that combination of low density odd-even check code hard decision decoding and low density odd-even check code soft decision decoding and excellent coding gains of a soft decision belief propagation algorithm are utilized, and a hard decision decoding method is fully applied to reduce influences of accumulated error code words.

The invention provides a construction method for a master patient index platform system. The system adopts data integration and is constructed based on the Web Service model. The method is characterized by comprising the following steps: A. integrating data of various existing information systems of a hospital into a same database; B. establishing cross indexes and a master index of patients for the integrated data; C. establishing Web Service for the integrated data for system calling; D. calling the Web Service on the system platform for centralized display of patient information. The method has the advantages that through establishment of the unified master patient index for the existing information systems of the hospital, such as an HIS (health information system), an EMR (electronic medical record) system, an LIS (laboratory information system), a mobile curing and nursing system and a psychological examination system, cross indexing of patient identifiers scattered in the different systems can be carried out, and unique identifiers can be assigned to the patients in the different systems.

The invention relates to a multi-thread audio and video synchronization control method and system. The method comprises the steps of establishing a demultiplexing thread, an audio and video decoding thread and an audio and video synchronous output thread; starting the demultiplexing thread to finish the demultiplexing processing of a transport stream or a program stream, respectively inserting audio and video elementary streams into tails of audio and video elementary stream queues, and activating the audio and video decoding thread; starting the audio and video decoding thread to respectively decode bit streams in the audio and video elementary stream queues, and respectively inserting time information and audio data and image data obtained after decoding into audio and video output queues; according to difference between a timestamp after decoding and a local system clock, starting the audio and video synchronous output thread, and selecting and outputting data which conforms to output time; and according to the difference between the timestamps of video and audio, conducting repetition and frame skipping processing to video playing to enable the audio and the video to be synchronously output. The multi-thread audio and video synchronization control method and system provided by the invention have the advantages that a large memory space is not needed for buffering data, the operating efficiency is high, the realization complexity is low and the method and the system are applicable to embedded operating systems.

The invention discloses a method for playing streaming media contents. A streaming media player receives streaming media data corresponding to the streaming media contents to be played, wherein the streaming media data is the streaming media data in a new streaming media format. The data in the new streaming media format structurally comprises a head, an index and one or more new streaming media packets sequentially, wherein the head is used for describing the media information of a file; the index is used for storing an index table of the position of video key frames; elements in the index are stored from a smaller time stamp to a larger time stamp; the new streaming media packets are used for storing a video frame or one or more audio frames respectively; the new streaming media packets are stored from the smaller time stamp to the larger time stamp; the streaming media data in the new streaming media format is buffered and analyzed; and when the total traffic of the received streaming media data is equal to a buffer threshold of the streaming media data, the streaming media contents corresponding to the streaming media data are played.

The invention discloses a method for printing stereo concave-convex patterns and a product acquired by the method. The method is a flexible intaglio direct printing technique and includes firstly, using laser to engrave concave-convex patterns needed to be printed onto a flexible printing plate of a printing roller; secondly, filling paint or printing ink into an engraved groove; thirdly, adjusting the printing roller to completely and directly extrude the paint or printing ink filled in the groove of the flexible printing plate onto a substrate surface; and fourthly, drying. Evidently stereo, complex, diversified and vivid concave-convex patterns can be formed on substrate surfaces of articles such as floors, ceramic tiles, glass products, furniture and the like by using simple printing technique, products with colorless, single-colored or multicolor three-dimensional concave-convex patterns can be obtained, the protruding thickness of the stereo multicolor printed concave-convex patterns can reach 25-3000 micrometers, aesthetic appreciation and ornamental requirements of people can be met, and the printing cost is low.

The invention discloses a double-channel reservation access control method in a mobile Ad Hoc network, comprising reservation slot selection, contention mini-slot selection and RTS/CTS handshaking, and packet data transmission and confirmation. The method improves network throughput under the single-hop network and multi-hop network, and simultaneously solves the hidden terminal and exposed terminal problems. Furthermore, the method provided by the invention can be realized on hardware.

The invention provides silane modified polyurethane resin and a preparation method thereof. The resin is prepared by reaction of the following raw materials: (a) a polyisocyanate; (b) a component which comprises (b1) poly(methyl)acrylate containing a NCO reactive group and /or (b2) a polyol; (c) a silane coupling agent; (d) a component which comprises (d1) poly(methyl)acrylate containing a NCO reactive group and /or (d2) a polyol; and the raw materials contain at least one of the (b1) and the (d1). Through introduction of a poly(methyl)acrylate structure onto a branched chain and/or the main chain of the silane modified polyurethane resin, the hydrocarbon medium resistance and weather resistance of the silane modified polyurethane resin are greatly improved; and siloxy for improving polyurethane water resistance and heat resistance is introduced. The silane modified polyurethane resin solves the problems of poor mechanical strength and hydrocarbon medium resistance of the resin.

The invention discloses a Hadoop-based network security event analyzing method. The method includes that by utilizing the characteristic that hadoop is high in efficiency, fault tolerance, expandability and reliability and open in source during mass data processing and adopting the advantage that an HDFS (hadoop distributed file system) is high in fault tolerance and extensibility, a user is allowed to arrange Hadoop on common and low-price hardware to form a distributed-type system; MapReduce provides a development parallel application program and realizes distributed-type calculating and parallel task processing on a cluster; the HDFS provides support like file operation and storage in the process when the MapReduce processes tasks, a data collecting system collects network security event information from each network security device, generates data files and stores the data files in the HDFS by using an API or an instruction, data are stored on nodes of multiple common hardware resources in a distributed manner, the MapReduce is used to analyze the event information and output analyzing results to demonstrate that the MapReduce realizes distribution, tracking, execution and the like on the basis of the HDFS, the results are collected, and major tasks of the Hadoop distributed-type cluster are completed through interaction.

The invention provides a high-density Ti2AlNb powder alloy near-net forming technology.The technology comprises the following steps that 1, a Ti2AlNb alloy bar is smelted by taking components of Ti2AlNb-based alloy as ingredients; 2, the alloy bar processed through finish turning is put into plasma rotation electrode powder preparing equipment, and the Ti2AlNb alloy bar is prepared into Ti2AlNb spherical powder under the inert gas shielding condition; 3, the prepared Ti2AlNb spherical powder is located into a stainless steel or low-carbon steel sheath; 4, the sheath which contains the Ti2AlNb spherical powder and is compacted through vibration is degassed; 5, hot isostatic pressing forming is performed on the degassed sheath.The Ti2AlNb powder alloy prepared through the method has the isotropic character and is high in density degree, uniform in tissue and component, excellent in mechanical property and capable of achieving Ti2AlNb alloy parts with the large size and complex shapes.

The invention discloses a method and a system for realizing a content delivery network (CDN) based on a software defined network (SDN). The method comprises the steps of respectively adding an application function, a control function and a network entity resource of the CDN into an application layer, a control layer and a data forwarding layer of the SDN; when a CDN application request is received, generating resource requirement and service orchestration information by the application layer of the SDN according to the CDN application request, transmitting a reserving request of the resource required by the CDN application to the SDN control layer so that the SDN control layer allocates the resource required by the CDN application, and generating a data transmission content routing table according to network load balance and a path strategy, furthermore generating an L2/L3 forwarding table, and transmitting to the data forwarding layer; and when the data forwarding layer of the SDN receives a content dispensing/delivery operation request, performing related operation of the CDN service according to the L2/L3 forwarding table. According to the method and the system, the system function of the CDN is realized based on the SDN, thereby effectively settling bearing network closure, hardware dedication and management problem in the CDN, and realizing reasonable selection for CDN application network resource, engine and forwarding path.

The invention discloses a preparation method of a low-cost and large-tow 48K carbon fiber preimpregnated cloth and a composite material thereof. According to the preparation method disclosed by the invention, a resin system compound formula and an impregnating-rolling dual-configuration method are adopted, so that the viscosity of a resins system is reduced, the infiltrating effect is improved, and the technical difficult problems that a fiber bundle is low in resin content, high in content of volatile components, uncontrollable in resin content and the like are solved. The invention also provides the preparation method of the 48K large-tow carbon fiber epoxy resin preimpregnated cloth; after forming, epoxy resin carbon fiber prepreg and a composite material thereof which are low in cost, high in performance and suitable for large-scale application in all industrial fields are obtained; the preparation cost of the composite material is greatly reduced, the application form and the application range of carbon fibers are widened, and the production efficiency and the stability of a process and a product are improved; large size, diversification and structural complication of the product can be realized; and the invention provides a low-cost carbon fiber raw material for application in the fields such as communication and transportation, engineering machinery, constructional engineering and energy.

The invention provides a virtual training system based on LVC simulation. The system can provide a set of development frames with perfect functions and convenient usage and a model library covering various apparatuses including vehicles, ships, and aircrafts etc., a series of functions including model editing, operating console editing, scenario editing and logic script editing are provided, the system is applicable to single-computer and local network training environments, various training modes including virtual operation demonstration, virtual instructor guidance, and training examination etc. can be supported, good technical support methods can be provided for preliminary training, regular training, and special service training, and selections with extremely high cost performance can be especially provide for complex operation process training and accident condition dealing training.

The method and device for eliminating same frequency interference in serial in TDS-CDMA system includes steps: for each cell, superposing reconstructed signal in this cell in procedure of interference elimination at previous stage and residual signal after eliminating previous interference signals of all cells in procedure for eliminating interference in this stage so as to recover received signal of cell; based on matched filter or demodulation symbol generated from united detection to reconstruct interference signal of cell; then, removing reconstructed signal of this cell from the input signal so as to obtain residual signal with interference being removed; executing the steps repeatedly based on number of serial stage. With lesser complexity, the method eliminates influence of signals from cells in same frequency to a large extent, especially, in malcondition that power of common frequency in adjacent cell is higher than this cell so as to raise performance for receiving signal.

The embodiment of the invention provides a multimedia resource playing method and device. The method includes: identifying user intention in a user speech; obtaining playing progress information of acurrently played multimedia resource if the user intention includes a time requirement; and obtaining interaction information, which corresponds to the user intention, according to the playing progress information of the currently played multimedia resource and the user intention. The device includes: an identification module, which is used for identifying the user intention in the user speech; afirst requirement obtaining module, which is used for obtaining the playing progress information of the currently played multimedia resource if the user intention includes the time requirement; and afirst processing module, which is used for obtaining the interaction information, which corresponds to the user intention, according to the playing progress information of the currently played multimedia resource and the user intention. The embodiment of the invention can realize an effect of carrying out complex querying and control on multimedia resources on the basis of a time dimension according to user speech instructions.

The invention provides a spectrum resources sharing method, device and system, relating to the technical field of communication. The method comprises: a server in a broadcasting network obtains preconfigured scheduling time and occupied frequency bands of broadcast services; and the server transmits broadcast scheduling notification information to a base station in a cellular network, wherein the broadcast scheduling notification information includes the scheduling time and occupied frequency bands of broadcast services. The method, the device and the system are mainly used for processing to achieve spectrum resources sharing in cellular/broadcasting integrated transmission network.

The present invention discloses a method for reducing the peak average power ratio of the multi-carrier system based on the orthogonal matrix transform of the CAZAC. By damaging the relevant property of frequency domain signal, the peak average power ratio of the multi-carrier system is reduced; the present invention is especially fit for OFDM system and can be flexibly applied for SISO and MIMO multi-carrier system. The method comprises the steps that a CAZAC sequence is set to construct the N multiplied by N orthogonal transformation matrix. Every OPDM symbol (frequency domain signal) on every emitting antenna is multiplied by the orthogonal transformation matrix before the multi-carrier modulation of the transmitting terminal to reduce the peak average power ratio of the system. The method does not need any SI and can effectively promote the frequency band utilization rate. By adopting the orthogonal transformation, fast algorithm can be used for reducing the complexity of the system realization.

The invention discloses an inspection method and device for answering derivation questions, electronic equipment and a storage medium. The method comprises the steps: obtaining the derivation questionand an answering process input by a user; extracting an answering process to obtain two or more answering steps; searching a corresponding problem solving model according to the derivation problem; and displaying explanation steps corresponding to the derivation question to the user according to the question solving model and the answering steps. According to the method and the device, the complexity of the explanation steps corresponding to the derivation question is determined according to the answering process of the user, so that the user can clearly understand the analysis thought of thederivation question and master the knowledge points corresponding to the derivation question according to the explanation steps.

The invention discloses a rapid forming method of a metal ceramic part. Metal powder and ceramic powder are mixed, a sintering aid and a dispersing agent are added, a mixture is added into a photocuring monomer solvent after ball grinding, then a dispersing agent, a photoinitiator and a defoaming agent are added, uniform mixing is carried out, and slurry is obtained; the prepared slurry is cured and printed point by point and layer by layer through ultraviolet light beams according to a three-dimensional model of the part, and a cured-formed metal ceramic blank is obtained; and finally the blank is put into a sintering furnace to be degreased and sintered, and metal ceramic is obtained. According to the method, the limitation of conventional machined part shapes is avoided, the machining duration is shortened, and cost is reduced. Meanwhile, through combination with the specific degreasing and sintering process steps, it is ensured that the formed part has high density, and the comprehensive mechanical property of the formed part is improved.

The invention discloses a GPON system for realizing rapid protection switching and a protection switching method and relates to the light access network field. The method comprises the following stepsthat an ONU negotiates with an OLT so as to add a customized PLOAM expansion message; the OLT records an EQD which normally registers the ONU; when switching is generated, an OLT PON port in a working mode detects an LOS and is switched to a standby mode, and a CPLD triggers the OLT PON port to be switched to the working mode, and broadcasts the customized PLOAM expansion message to all the ONUsunder the PON port; and the ONU detects a LOF, enters into a POPUP state from an operation state, and eliminates an LOF interruption, at this time, the ONU receives the customized PLOAM expansion message and generates an interruption, and the ONU sets the EQD of the ONU according to the EQD in the customized PLOAM expansion message sent by the OLT, sets a GPON system state machine to the operationstate, and reports the state. In the invention, PON protection switching time can be reduced to 1ms.