219results about How to "Good scalability" patented technology

A semiconductor device is fabricated by implanting into a semiconductor substrate non-doping ions at a tilt angle of at least about 10° to laterally extend preamorphization of the substrate portion and then implanting into the substrate dopants for providing source/drain extensions or halo doping or both.

The invention discloses a short-time traffic flow prediction method based on a long-time and short-time memory recurrent neural network. The method comprises the following steps: aggregating inputted historical traffic flow data according to a prediction time interval of a short-time traffic flow; carrying out pretreatment on the aggregated historical traffic flow; setting a reasonable parameter for a long-time and short-time memory recurrent neural network; training a neural network prediction model by using data after pretreatment; and invoking a traffic flow, predicted by the prediction model, of a designated time interval and evaluating a prediction error. According to the invention, because the long-time and short-time memory recurrent neural network has the advantage of being capable of memorizing inputted historical data for long time, the high prediction precision is realized; and the expansibility for different prediction intervals is good.

This invention utilizes the good architecture design presented by the latest Internet protocol IPv6, combines with safety domain name (DN) service, extends the existed ID verification system functions, realizes the bounding relation between the user ID and recent real IPv6 address to offer a reliable security service for the upper application. In the user management domain, there are a net access control server (NACS), an ID authentication server (IDAS) and a DN server. NACS recognizes the registered user via a 3-element group consisted of user computer source MAC address, the source IPv6 address and the port. IDAS authenticates the user ID recognition and defines related accessing priority. DN server establishes the positive-negative direction relations between user private DN and IPv6 address. This invention provides more effective ID authentication means and possesses a great extendable function to meet the requirement of the future Internet application development.

The invention discloses a built-in intelligent failure diagnosis device based on data fusion mode recognition in the technical field of intelligent diagnosis of rail transport failure, which comprises a hardware structure and a software structure. The diagnosis device adopts high-speed DPS microprocessor and forms a distributive monitor processing system, that is, a two-level microcomputer structure with a supervisory machine and a subordinate machine with the help of a multiple-stage buffer and streamline mechanism in the high-speed data processing of the former. Besides, in coordination with sensor group information based on data fusion mode recognition and with the help of multiple neural network partial diagnosis and a decision-making level fusion mode recognition and intelligent diagnosis mechanism, the invention is able to realize the data storage, image display and long-distance data transmission, so as to complete the task of failure diagnosis. Therefore, the invention is able to detect the potential failure of key equipments for train, ensure the safety and reliability for the operation of key equipment in train and improve the operation efficiency and safety guarantee to the maximal extent.

The invention discloses a control system for a modular multilevel converter and an application method of the control system. The control system for the modular multilevel converter comprises a master control unit, M1 bridge arm control units, a group of high-speed digital buses and a group of communication buses, wherein each bridge arm control unit comprises M2 valve group control units; and each valve group control unit is used for controlling the use, the removal, the bypassing and the lockout of sub-modules in a corresponding valve group through an optical fiber, and electrically isolating the sub-modules. A sub-module voltage balancing algorithm for the modular multilevel converter consists of an intra-valve group voltage balancing part and an inter-valve group voltage balancing part. The control system and the application method are used for controlling and managing the use, the removal, the bypassing and the lockout of the sub-modules of the modular multilevel converter to realize the voltage balancing of the sub-modules of the modular multilevel converter, are applied to an application situation where the modular multilevel converter has a great number of sub-modules, and have the characteristics of modular design and high expansibility, and the design difficulty of the control system can be greatly reduced.

The invention relates to the field of unmanned aerial vehicle (UAV) and ground robot coordinated formation, and provides a system which has good scalability and strong stability and can support UAV and ground robot platform coordinated formation so researchers can conduct physical simulation and experimental verification on an air-ground coordinated formation algorithm through the system. The technical scheme is as follows: a UAV and ground robot coordinated formation system is composed of a UAV formation, an indoor positioning system, ground mobile robots, and a ground work station; the UAV formation includes multiple four-rotor UAVs of different models, and each UAV is equipped with an airborne controller, a sensor device and a Wi-Fi module; and the airborne controllers run a flight control algorithm in real time and are responsible for coordinating and commanding all behaviors of the UAVs, and the attitude information of the UAVs is acquired by the sensor devices. The system is mainly applied to the occasion of UAV and ground robot coordinated formation.

Voltage controlled magnetic tunnel junctions and memory devices are described which provide efficient high speed switching of non-volatile magnetic devices at high cell densities. Implementations are described which provide a wide range of voltage control alternatives with in-plane and perpendicular magnetization, bidirectionally switched magnetization, and control of domain wall dynamics.

The invention provides a system for automatically generating television program labels, which comprises a program information obtaining module used for grasping pages relevant to each program, pruning and filtering the pages and obtaining subject content of the program information, an information keyword extracting module used for summarizing the subject content and extracting keywords from the subject content, a knowledge base module used for establishing network relationships among entries and expanding the obtained key words, a keyword expanding module used for expanding the keywords to obtain a larger entry set by utilizing a network provided by the knowledge base module, and a label generating module used for processing the obtained key entry set of the keywords, filtering noise of the key entry set, computing the score of the key entry set and generating program label sets. The system has the advantages that the blank in the systems for automatically generating television program labels is filled; due to the introduction of a knowledge base, the system is not restricted to the network pages, has high expansibility and can better find out the labels; and the knowledge base can be established in an off-line manner, and a label generating algorithm is concise, so that the efficiency of the system is high.

The invention discloses a multifunctional TV set, comprising video channel, audio channel and signal processor, characterized in that it also comprises flow media controller connected with the video and audio channels for processing multifunctional digital data flow, and also comprises internal bus, as well as controller, USB interface, video decoder and audio decoder interconnected through the internal bus, where the controller decodes audio-video digital signals read from the USB interface by the video and audio decoders through the internal bus and output the decoded audio-video digital signals through video channel and/or audio channel. And the multifunctional TV set can connect with USB disc, mobile hard disk, digital camera, card reader, and other USB devices through USB interface, and implement decoding and playing various compressed files, such as MPEG1/MPEG2/MPEG4/JPEG/MP3.

The invention provides a multimedia meeting holding method, including a meeting-requesting step: as preparing holding a meeting, selecting a terminal from many terminals as an initiating terminal; transmitting the meeting-holding request by the initiating terminal through a network guard to a meeting management unit; and a meeting establishing step: the meeting management unit judges if the current network resources can support the meeting: if yes, the meeting management unit establishes the meeting and according to the meeting-holding request information, it sets holding attribute of the meeting, and then holding the meeting; otherwise the meeting management refuses to hold the request; as well as a meeting holding step: the meeting management unit controls multipoint control unit to hold the meeting. The invention solves the defects in overhigh load of the network guard and being uneasy and unable to implement the meeting-appointing function.

The invention discloses a multilevel classification retrieval method and a system, which belong to the technical field of the database retrieval. In the prior art, the retrieval efficiency of the classified data is low or the expandability is poor. The method and the system are characterized in that a classified field is arranged in a data sheet according to data classification information, and hierarchical relationship between classified nodes is stored; each node is divided into an independent field according to the hierarchical relationship between the classified nodes, the field is combined with other fields in the data sheet so as to generate a classified association list; and database index is used for retrieving data in the classified association sheet during the retrieval. The method and the system improve the retrieval efficiency of the classified data, have strong expandability, and are particularly applicable to the retrieval of the database of large data volume.

A method, system and computer program product for an asynchronous interconnection between nodes of a clustered database management system (DBMS). Node timestamps are provided when each of the nodes in the cluster are started. Two or more communication conduits are established between the nodes. Each communication conduit between a local node and a remote node has an associated session identifier. The session identifiers and the timestamp from the remote node are associated to each communication conduit and the associated local node in the cluster. A timestamp is received from the remote node at the local node when establishing communication to determine if the remote node corresponds to the remote node incarnation identified by the timestamp and if DBMS communication between nodes can be initiated.

The invention discloses a magnetic flux feedback suspension control method and device of an EMS type low-speed aerotrain. The method comprises the following implementation steps: collecting and obtaining the magnetic flux density at the position of a suspension gap through a magnetic flux induction coil a, and collecting the suspension accelerated speed and the suspension gap; calculating a suspension system control rate according to the magnetic flux density, the suspension accelerated speed and the suspension gap; generating a closed loop to control PWM signals according to the suspension system control rate, and respectively outputting the PWM signals to a PWM driving circuit to adjust the suspension force between a suspension electromagnet and a track. The device comprises a sensor set, a data collection board, a suspension controller and the PWM driving circuit, wherein the sensor set, the data collection board, the suspension controller and the PWM driving circuit are sequentially connected. The method and device have the advantages of being good in suspension control stability, high in sensitivity, low in control bandwidth, capable of improving the stability and robustness of the suspension control system, simple, easy to implement, strong in anti-jamming capability, good in expandability, and flexible in implementation.

The invention relates a node positioning method of an irregular transmission model in a wireless sensor network. The method comprises the following steps that: an unknown node receives an information package which is transmitted through broadcast by a mobile anchor node and contains position information of the mobile anchor node; a two-dimensional rectangular coordinate system is established in a wireless sensor network area to determine the moving path of the mobile anchor node, the unknown node constantly monitors and receives information packages, an actual communication radius is irregular, and an adjusted communication radius is used for replacing the actual communication radius in the invention. When the unknown node receives three information packages transmitted through broadcast by the mobile anchor node, the unknown node is positioned according to whether the unknown node is in a regular triangle consisting of any three received mobile anchor nodes. The method is high in positioning accuracy and free from influence of environmental factors; moreover, the network cost is low.

The invention provides a service-oriented distributed request processing system. The system comprises a master server manager, a plurality of master servers belonging to the master server manager and a plurality of slave servers belonging to the master servers, wherein the master server manager queries an idle master server corresponding to the type of a request according to the request of a client and returns information of the master server to the client; the master server receives the request information of the client and sends the request information to a selected slave server for performing processing; and the slave server processes the request information and returns a processing result to the client through the master server. According to the system, low-price PC servers are used in a framework, and distributed computing of massive data is supported according to a master-slave node mode by transversely expanding a server cluster. Compared with use of a large computer server, the framework of the system is low in cost and high in expandability.

The invention discloses a meteorological monitoring system, and relates to the technical field of meteorological monitoring equipment. The meteorological monitoring system comprises a data acquirer for acquiring various types of detectors, wherein the data acquirer transmits signals acquired by the detectors to a command central station through communication equipment; the data acquirer adopts two power supply modes, namely an alternating current power supply mode and a storage battery intelligent power supply mode; and the data acquirer is connected with a rainfall and snowfall detector, a visibility detector, a temperature and humidity detector, a wind direction and wind speed detector and an infrared remote sensing pavement temperature measurer through RS485 interfaces respectively and can perform data acquisition and analysis on sand and fog on a high-speed road, the visibility parameter, the pavement temperature, the wind direction, the wind speed, the rainfall factors and the snowfall factors and transmit analysis results to the command central station, so that a site actual situation can be monitored in real time. The meteorological monitoring system can detect all items and detect the sand and the fog on the high-speed road, the visibility parameter, the pavement temperature, the wind direction, the wind speed, the rainfall factors and the snowfall factors in real time.

The invention discloses a regional health information sharing network system, which is characterized in that an application terminal device of a community health service center, an application terminal device of a village clinics/service station, an application terminal device of a large and medium-sized hospital, and an application terminal device of a third party pay for medical insurance are all in two-way data connection with a medical health information sharing platform. The system is suitable for establishing cross-platform data sharing in a certain scope mainly based on residents, and builds up a perfect platform for the construction of regional health information. Based on the platform, a plurality of application systems of different fields and different structures can be added, thus the platform has excellent expansibility, and regional health information is shared and interacted. The system has strong data integration performance; a BG-MPI module provides a strong data pairing mechanism with high accuracy; and mutual authentication of multiple service modules can be realized. Compared with the prior art, the system has outstanding substantive characteristics and remarkable improvement.

The invention discloses a serial number generating method and device, and a server. The serial number generating method comprises: receiving a serial number allocating request; acquiring the node number of an application node receiving the serial number allocating request and the current system time of a server where the application node is located; generating a time sequence value associated with the serial number allocating request; and performing bit OR operation on the binary numbers of the node number, the current system time, and the time sequence value, and generating a single serial number in a long integer (LONG) data structure type. The method may enable any two application nodes in a distributed cluster to generate two different serial numbers in parallel and provide the serial number generating service in the distributed cluster with a better concurrent processing capability. Further, the data format of the generated serial number is the LONG type, thereby facilitating storage and retrieval.

The invention discloses a geological disaster monitoring and early warning system and method using a wireless sensor network, wherein the system comprises a sensor data acquisition node, a sensor data aggregation gateway and a data processing server; the sensor data acquisition node comprises a sensor module, a data monitoring module, a node wireless transceiver module and a power management module; the sensor data aggregation gateway comprises a gateway wireless transceiver module, a data processing module, a command analysis module, a system monitoring module, a gateway mobile communication module and a power management module; the data processing server comprises a server mobile communication module, a database, a data processing background, a webpage visualization platform, an SMS push platform and a mobile phone app platform. The invention further provides a geological disaster monitoring and early warning method using a wireless sensor network. The invention uses the multi-source data fusion technology, so that the convergence of monitoring and early warning is more reasonable and scientific, and the early warning and forecast capability, reliability and accuracy of the monitoring task are improved.

The invention discloses a GPU box PCIE extended interconnection topology device. The device comprises a GPU box, wherein the GPU box comprises eight groups of interconnected GPUs, a CPU server connected with the GPUs and a PCIE switch module; the PCIE switch module installs a high-speed interconnected cable card through a PCIE slot to realize interconnection among different GPU boxes; the GPUs areconnected through the PCIE switch module; the CPU server is connected with the GPU box through a PCIE link; the PCIE switch module extends the PCIE link into eight groups of PCIE X16 links to realizeconnection between the CPU server and the eight groups of GPUs. Through the device, independent design of a standard PCIE interface GPU box is realized, maximization of GPU performance is guaranteed,transmission delay is short, extensibility is good, flexible configuration and matching usage can be realized, and GPU box design needed for high performance and artificial intelligence is provided.

The invention discloses a method for realizing the routing of a wireless mesh network, which comprises the following steps: A. a source node sends a route request message to a surrounding intermediate node, wherein the route request message carries initial route criterion information which is provided by the source node and used for choosing routes; B. after receiving the route request message, the intermediate node updates the received route criterion information according to the network data of the intermediate node, and sends the route request message to the next node, wherein the route request message carries updated route criterion information; C. after receiving the route request message sent by the intermediate node, a destination node obtains the route criterion information of the route, and returns a route response message to the source node according to an original route, wherein the route response message carries the route criterion information of the route; and D. the source node chooses appropriate routes according to the types of services and the route criterion information of each route in the route response message returned by the surrounding intermediate node. The method for realizing the routing of the wireless mesh network and the wireless mesh network node of the invention are used for realizing service-based routing.

The invention relates to a radiographic testing weld image management system and an auxiliary film viewing method which belong to the methods of assessing welding quality by utilizing computers. The image management system is deployed on a server system, the system is visited through a client computer; the image management system comprises a function module, the function module adopts the design of a B/S four-layer architecture comprising a presentation layer, a business logic layer, a persistence layer and a database layer and further supports the functions of remote browsing and film viewing; and the function module comprises an image acquisition module, an image parameter acquisition module, an image processing module, a film viewing management module, a query statistics module and a system management module. The management system and the film viewing method are applied in a network environment, can register a digitalized radiographic testing film and the related parameter specification in an image database and can query and carry out the classified statistics; the coarse support vector machine classified modeling method is adopted for classified recognition and extraction of welding defects, thereby making the corresponding assessment of the welding quality according to standards.

The invention discloses a data storage method and device, and belongs to the technical field of data storage. The method comprises the following steps: according to a configuration file, determining at least one data acquisition instruction; according to each data acquisition instruction, obtaining at least one piece of first data under each data table from a first database; determining a key value corresponding to each piece of obtained first data and second data corresponding to each piece of first data; and storing the key value corresponding to each piece of first data and the second data corresponding to each piece of first data to obtain a second database. The key value corresponding to each piece of first data and the corresponding second data are determined, and the key value corresponding to each piece of first data and the second data corresponding to each piece of first data are stored to obtain the second database. Since the configuration file has expansibility, only the configuration file needs to be expanded when updated data needs to be loaded, a data storage process is simple, the stored data has the good expansibility, and therefore, data storage efficiency is high.

The invention relates to an IPv6 remote detector and relative method. Wherein, it comprises network communication module, video module, embedded network module, and power module, while the embedded network module is connected other three modules to be integrated in one embedded system. The inventive device uses next-generation internet, supports IPv6 and/or IPv4 network protocols, etc, to transmit data, with network interface, while it can be connected to internet independently. And it has unique address and unique globe IP address. The invention can realize remote video, alarm and detection, etc.

The invention aims to provide an MVC (model view controller) mode-based language transformation method and equipment for a program. The transformation equipment, after determining the initial programming language adopted by the to-be-transformed initial program, analyses encoding structure of initial program according to an MVC mode so as to determine the transformation content and non-transformation content during encoding, language transformation is performed on the transformation content according to the target programming language by combining the transformation content, so as to generate one or more target encoding files, and frame transformation is finally performed on the non-transformation content and the target encoding file so as to generate a target program corresponding to the initial program. Compared with the prior art, the MVC (model view controller) mode-based language transformation method and equipment for the program can support the transformation among a plurality of languages, and support continuous increasing of language and frame editions; the expansibility is better; by adopting the method and equipment, the program transformation efficiency is improved, and the development time and resource consumption are reduced.

The invention discloses a combined type data cutting method based on regular expression and separators. The method comprises the following steps: a) reading a log file; b) recognizing and extracting an event in the log file according to a timestamp or a start symbol; c) extracting data of the extracted event content according to the fixed separator or regular expression way; selecting a plurality of preset character strings by the step b) as the start symbol, and converting the plurality of preset character strings into a plurality of regular expressions, traversing each line of log data, orderly matching with each regular expression. Through the adoption of the combined type data cutting method based on regular expression and separators provided by the invention, the different cutting ways are used according to different event types, each cutting way is corresponding to a log within the range, and the character string operation is provided through each way, thereby satisfying the fast recognition cutting of various complex logs, the method is simple and easy to use, and good in expansibility.

The related flexible FDM method on directional antenna mode comprises: the RNC divides every sector into the main carrier and sub-carrier and determines the maximal emission power for sector according to business quantity; the BS determines the emission power for carriers, and communicates with user based on relative sub-carrier. This invention has well expansion, improves frequency source utility, and adjusts conveniently.

The invention discloses a wireless control system for dimming a light-emitting diode, which comprises an upper computer, a wireless communication module and at least one LED control module. The upper computer is used for transmitting a dimming control signal to a designated LED control module through the wireless communication module in a wireless form; each LED control module is connected with an LED light source and is used for transforming the received dimming control signal into a PWM waveform and adjusting the brightness of the LED light source connected with the LED control module; and the wireless communication module is used for realizing wireless communication between the upper computer and the LED control module. The wireless control system for dimming the light-emitting diode, provided by the embodiment of the invention, can flexibly and simply realize the LED light source dimming control.

The invention discloses a microgrid system and a control method. The microgrid system comprises a plurality of energy storage converters connected in parallel between a DC bus and an AC bus; the AC sides of the energy storage converters are connected in parallel through an AC bus and then connected with the grid-connected or parallel control cabinet; the grid-connected or parallel-connected control cabinet receives an instruction of a coordination control device of the microgrid and controls the microgrid to work in a grid-connected mode or an off-grid mode; the grid-connected or parallel-connected control cabinet obtains a current component reference value of a current inner loop through outer loop control, and sends the obtained current component reference value to each energy storage converter connected in parallel; and each energy storage converter performs current inner loop operation according to the received current component reference value to obtain a driving signal for driving the switching tube of the energy storage converter to be switched on and switched off. According to the method, the information processing speed of the microgrid during information processing can beincreased, Meanwhile, the problems of respective sampling of each energy storage converter in the microgrid energy storage system and imbalance of outer loop calculation errors can be effectively eliminated.

One embodiment of the application discloses a method and device for determining transmission block size. The method comprises following steps: a terminal device receives control information sent by anetwork device, wherein the control information comprises indication information and resource information of a data channel; the terminal device determines the modulation mode and the coding rate according to a first mapping relation set and the indication information, and determines the number of time-frequency resources according to the resource information of the data channel; the terminal device determines a transmission block size TBS according to the modulation mode, the coding rate, and the number of time-frequency resources; the terminal device decodes the data channel carried on the time-frequency resource based on the TBS or sends the data channel on the time-frequency resource based on the TBS. The embodiment of the present application has the advantage that the determination efficiency of the transmission block size can be improved, and further the transmission efficiency of the data channel can be improved.