445results about How to "Improve scalability" patented technology

A highly flexible, software-based architecture is disclosed for constructing distributed systems. The architecture supports cooperative task completion by flexible and autonomous electronic agents. One or more facilitators are used to broker communication and cooperation among the agents. The architecture provides for the construction of arbitrarily complex goals by users and service-requesting agents. Additional features include agent-based provision of multi modal interfaces, including natural language.

A method and apparatus for supporting scalability for motion vectors in scalable video coding are provided. The motion estimation apparatus includes a motion estimation module searching for a variable block size and a motion vector that minimize a cost function for each layer according to predetermined pixel accuracy, a sampling module upsampling an original frame when the pixel accuracy is less than a pixel size, and before searching for a motion vector in a layer having a lower resolution than the original frame downsampling the original frame into the low resolution, a motion residual module calculating a residual between motion vectors found in the respective layers, and a rearrangement module rearranging the residuals between the found motion vectors and the found variable block size information using significance obtained from a searched lower layer. Accordingly, true motion scalability can be achieved to improve adaptability to changing network circumstances.

Systems, methods and computer program products provide secure access to real-time emissions data from one or more power generating plants via a web-based interface. The user provides log-in information to gain a predefined level of access based on the inputted log-in information, and may access emissions data of one or more power generating plants located remotely with respect to the user. The user can utilize any suitable computing device with a suitable browser application to access the emissions data. Accordingly, the system is highly scalable, in both users and power generating plants being monitored.

The invention provides a safety distributed test framework system and a test method thereof. The safety distributed test framework system comprises a test data preparation module, a test execution control module, a test result evaluation module and a test middleware. The test method comprises the following steps of: establishing a test example and a test script which meet the test requirement of a large-size military hardware system according to test characteristics of the large-size military hardware system; arranging a test task so as to realize automatic execution on an isomerous operatingsystem platform during software test, and evaluating a test execution result; and expanding on the basis of a test framework according to a new test requirement so as to adapt to different test environments. The safety distributed test framework system has the characteristics of reusability, feasibility and flexibility; the characteristics are kept and the safety requirement of the large-size military hardware system is taken into consideration fully; and the safety of the system can be enhanced by testing the environment verification and monitoring the test environments when the test is realized and the system runs.

The invention relates to a large-scale distributed storage system in the technical field of computer network application, comprising at least one management node which is used for storing a name space, metadata information, an object number and address information of an object, a plurality of storage nodes which are used for storing corresponding object data and a plurality of super clients; the super clients access the management node by the storage node, search for the object number and the address information of the object of a file to be accessed in the management node and access the corresponding object data from the corresponding storage nodes; the management node comprises a file system which stores the name space and the metadata information of the object and a database which stores the object number and the address information of the object. Configurable automatic load balancing and data migration are adopted in the large-scale distributed storage system, the consistency of the data is periodically checked, and the junk data is periodically cleaned, therefore, various problems which are caused by manual operation are eliminated, and the large-scale distributed storage system has high expandability.

The invention discloses a terminal-cloud cooperative computing architecture, a task scheduling device and a task scheduling method. The terminal-cloud cooperative computing architecture under an edge cloud computing platform and the task scheduling method under the architecture provided in the invention aim to solve the problems that the load of the existing edge cloud platform is high and the communication overhead when a task is submitted to a remote end is high in the rapid development cloud application time. Different from the traditional cloud computing platform, the terminal-cloud cooperative computing architecture disclosed by the invention is as follows: terminals, which are safely certificated and accessed to the system and have a certain computing capability, are also added into a computing resource pool, so that a terminal cluster is formed; the terminal cluster has relatively high expansibility; the cloud expansibility is increased; the terminal cluster and a service node cluster in static cloud complete a previous task computed by a single cloud platform together; the traditional cloud platform is optimized; the load of the cloud side is effectively reduced; the architecture has the real-time and rapid characteristics of edge cloud; and furthermore, relatively high and steady services of large data applications, such as the internet of things, can be provided.

A thin-film magnetic head is constructed such that a main magnetic pole layer having a magnetic pole end face on a side of a medium-opposing surface opposing a recording medium, a write shield layer opposing the main magnetic pole layer on the medium-opposing surface side, a gap layer formed between the main magnetic pole layer and write shield layer, and a thin-film coil wound about the write shield layer or main magnetic pole layer are laminated on a substrate. This thin-film magnetic head has an equidistant two-stage structure in which a first turn part of a first conductor layer and a second turn part of a second conductor layer overlap vertically along the medium-opposing surface while having the same front distance from respective front side faces closer to the medium-opposing surface to the medium-opposing surface.

A method, system, method and computer program product for facilitating collective communication in parallel computing. A system for parallel computing includes one or more communicators. Each of the one or more communicators comprises a plurality of processes. A memory pool including one or more early arrival buffers is provided. One or more tokens are assigned to a specified communicator included in the communicators. Each of the processes comprised by the specified communicator may consume any token assigned to the specified communicator. Requesting an early arrival buffer included in the memory pool requires consuming at least one token. A collective communication operation is performed using the specified communicator. The collective communication operation is performed eagerly using early arrival buffers obtained by consuming the tokens assigned to the communicator.

The invention discloses a method for managing a plug-in and a system thereof. The method comprises the following steps: A, abstracting the operation interface of the plug-in and encapsulating the interface into an upper-level invocation interface; B, storing obtained plug-in handle and marking in a memory when loading the plug-in needs to be invoked, and establishing the corresponding relationship between the plug-in handle and the plug-in management information; and C, conducting loading, unloading or searching operation to the plug-in to be invoked according to the upper-level invocation interface and the corresponding relationship between the plug-in handle and the plug-in management information in the memory. The invention realizes unified storage, operation and management to the plug-in, and particularly aims to solve the difference between static loading and dynamic loading of a shared library, thereby enlarging use range of programs to plug-ins, improving the cross-platform expansibility of programs, and facilitating the transplantation of programs.

A network architecture in accordance with the present invention includes a communication network that supports one or more network-based Virtual Private Networks (VPNs). The communication network includes a plurality of boundary routers that are connected by access links to CPE edge routers belonging to the one or more VPNs. To prevent traffic from outside a customer's VPN (e.g., traffic from other VPNs or the Internet at large) from degrading the QoS provided to traffic from within the customer's VPN, the present invention gives precedence to intra-VPN traffic over extra-VPN traffic on each customer's access link through access link prioritization or access link capacity allocation, such that extra-VPN traffic cannot interfere with inter-VPN traffic. Granting precedence to intra-VPN traffic over extra-VPN traffic in this manner entails special configuration of network elements and protocols, including partitioning between intra-VPN and extra-VPN traffic on the physical access link using layer 2 multiplexing and the configuration of routing protocols to achieve logical traffic separation between intra-VPN traffic and extra-VPN traffic at the VPN boundary routers and CPE edge routers. By configuring the access networks, the VPN boundary routers and CPE edge routers, and the routing protocols of the edge and boundary routers in this manner, the high-level service of DoS attack prevention is achieved.

The invention relates to an internet of things device P2P connection method based on an NAT penetration adapter. The method is characterized in that a host on a public network outside NATs achieves NAT penetration, and data detection and control are carried out on a built-in terminal in the internet of things in the NATs in a P2P mode; hosts in different NATs achieve penetration of the NATs to achieve two-way transmission of sensing and control data between different local area networks and between an outer network and the local area networks, and the two-way transmission is based on built-in devices in the internet of things in the NATs and universal devices. The method is based on the technology of interactive communication building modes, traversing NAT modes of STUN and TURN are combined, and the method is a comprehensive NAT solution.

The invention, which is suitable for the communication technology field, provides a service routing network, and a method and equipment for service processing. The service routing network comprises a service label processing module, a service processing control module and a service processing module. The service label processing module is used for generating one or a plurality of service labels corresponding to a received message. A label processing unit is used to insert a service label in a message or modify and delete the service label in the message according to a routing table generated by the service processing control module. The service processing control module is used to generate a service routing table. And the service processing module is used to carry out corresponding processing on characteristics of one kind of or a plurality of kinds of services according to the service label in the message. According to the invention, service routing is carried out based on a service label and generation of a new service is realized only by linking a new service processing module; and there is no need to carry out hardware changing on an original service processing module or carry out processing on software updating. And compared with the prior art, the technology employed in the invention enables high expandability to be realized.

The invention provides a distributed screen splicing control system and a control method. A server of the system outputs a splicing instruction to a linked video processing unit through a switch according to received screen splicing information; the video processing unit is connected with m video sources through video lines, is linked with the server through the switch, obtains video data according to the splicing instruction and the information of the video sources, carries out image segmentation, encoding and package to the video data in a splicing mode, and outputs packaged code streams according to addresses of display processors; n display processors are connected with n sub-screens through the video lines, and any one display processor is linked with the server and receives the packaged code stream corresponding to the address of the display processor from the switch, analyzes and decodes the packaged code stream and then outputs the packaged code stream to the sub-screen connected with the display processor to display. With the adoption of the method and the system, the expandability can be increased, the distance limit of transmitting an analog signal is eliminated, and the cost of transmitting the analog signal is reduced.

The invention provides a modularized open PCBA (Printed Circuit Board Assembly) functional circuit test platform, system and method. The quality of a PCBA product is effectively controlled by using a half-automatic test manner. When a test table uses a needle bed and a relay switching group controlled by a single chip microcomputer to test different PCBAs, probes of the needle bed are reconfigured, and then one ends of the probes are connected with a relay, so that the expansibility is improved. In view of the system reusability, the test table matched with one type of the PCBA is pre-manufactured. When the PCBA is tested by only using the corresponding test table and opening an attest file, the test efficiency is greatly improved. A test instrument can be replaced according to test demands, so as to expand a system test function. The modularization open PCBA functional circuit test platform is a core of an entire test platform to control the operation state of the entire test process and is used for judging and recording the test content and result of each step, so that the test result is finally obtained. The modularized open PCBA functional circuit test platform is convenient to store and output the data.

The invention discloses an intelligent home control system and an intelligent home router. The intelligent home control system comprises a remote terminal, a server, an intelligent home router and intelligent home devices, wherein the intelligent home router comprises a network interface module, a routing module, a communication module and a home control module; the network interface module is used for accessing a network provided by a network operator and communicating with the server in the network; the communication module is used for creating wireless connection with the intelligent devices; the router module is used for receiving the control command of the remote terminal forwarded by the server, and analyzing the control command to obtain a control message and then sending the control message to the home control module; the home control module is used for receiving the control message and converting the control message to a 315MHz control signal, a 433MHz control signal or an infrared control signal, and sending the signal to the corresponding intelligent home devices to control the same. According to the intelligent home control system and the intelligent home router, the control host machine can be replaced by a router, so that intelligent home control is simplified.

The invention relates to a step wave pulse width modulation method based on nonlinear programming. The step wave pulse width modulation method comprises the following steps of: correspondingly calculating the number of sub-modules in a part to be added or cut according to increase or decrease of a modulation degree so as to reach required alternating current voltage output; secondly, establishing a nonlinear programming mathematical model of the modulation method with a goal that the approximate error of a fundamental wave component in the step wave outputted by a current converter is minimum relative to a given modulation wave on the basis of a theoretically output step waveform Fourier transform result by selecting an initial value of a triggering angle; finally obtaining the solution of the triggering angle under a corresponding level number and modulation degree. The step wave pulse width modulation method based on the nonlinear programming, disclosed by the invention, overcomes defects of a specific sub-harmonic elimination method that calculation amount is huge and on-line real-time calculation cannot be carried out. A switch device is only switched on and off once in one cyclic wave, the remarkable advantage of small switching loss is achieved. The step wave pulse width modulation method based on the nonlinear programming, disclosed by the invention, has better expandability, can theoretically finish trigger impulse control tasks of voltage source current converters with any quantity of levels, has stronger transportability, is suitable for modularized multi-level converters and is also suitable for cascaded H-shaped bridge type voltage source current converters with a large quantity of levels.

The invention discloses a CAN (Controller Area Network) and LIN (Local Interconnect Network) bus network based vehicle control system which comprises a local area network connecting all electric control units in the vehicle control system, wherein all the electric control units communicate with one another through the local area network. The local area network comprises a power high-speed CAN, a vehicle body high-speed CAN, a first LIN and a second LIN. In the invention, A double-high-speed CAN and two-LIN topological structure is adopted, and reasonable nodes with terminal resistors are used, therefore the expansibility of the whole network is strengthened; timeliness of the network is improved through the definition of ID, cycle and the like; the wakeup from sleep of the whole network is ensured through the application of complicated network management, therefore the effect of coordinative and orderly network operation can be achieved.

The invention discloses a narrow-line-width high-dimensionality quantum entanglement light source generating device. The device comprises a pumping laser unit, a crystal unit, a filter unit and a collection and analysis unit, the pumping laser unit is used for generating pumping light needed in the process of spontaneous parametric down-conversion of the crystal unit, the crystal unit is used for receiving pumping light emitted by the pumping laser unit and utilizing the spontaneous parametric down-conversion process to generate a high-dimensionality quantum entanglement light source carrying orbital angular momentum information, the filter unit is used for filtering pumping light in the high-dimensionality quantum entanglement light source and narrowing line width of the same, and the collection and analysis unit is used for collecting the narrow-line-width high-dimensionality quantum entanglement light source after being processed by the filter unit and measuring entanglement characteristics of the same. The narrow-line-width high-dimensionality quantum entanglement light source generating device has the advantages of convenience in adjusting, high-dimensionality correlation and can be used in various application fields like quantum communication, quantum networks, quantum passwords and quantum physical testing.

A chromatographic apparatus is provided comprising a housing, a fluid inlet to the housing, a fluid outlet from the housing, an optional vent and a chromatographic packed bed in the housing. The fluid inlet and fluid outlet and optional vent are provided with connectors that connect a fluid inlet and a fluid outlet on other such chromatographic apparatus.

The invention relates to a robot safety path planning method based on dynamic region division. The method includes the steps that firstly, a sampling point is randomly selected in path space to be as an expanding direction, and adjacent nodes from which the distance to the random sampling point path is shortest are selected; secondly, the region division is performed on the adjacent nodes according to the size of an occupied area of barriers, safety evaluation criteria of the path are established, and further, optimal adjacent nodes are determined; thirdly, according to the optimal adjacent nodes and a region division result, a proper method is selected to perform path expanding, novel nodes are generated and added into an expanding tree, and a robot safety path is gradually generated. The robot safety path planning method based on the dynamic region division, the complex and changeable unknown environment is taken into consideration in planning of the multi-free-degree robot path, the nodes in a path map are made to contain environment information of a local partial area, and the environment information is utilized to guide a planning device to plan the path efficiently and safe in real time.

The invention provides a distributed method and a system based on a message queue. The distributed method based on the message queue comprises the following steps of: sending a message for a queue manager by first application; determining whether the message is successfully sent; if the message is determined not to be successfully sent, putting the message into a first abnormal processing module for processing; if the message is determined to be successfully sent, carrying out the processing on a received message by the queue manager; sending the message into a second application; and carrying out the processing on the received message by the second application.

The invention discloses a method for realizing non-barrier automatic psychological consult by adopting a computer, relating to a psychological consult technology and solving the problems of unavailable independent operation, consult and monitoring without real-time feedback, consult results without duly feedback, psychological consult files without establishment of overall process of consult and therapy, and weak expansibility of traditional psychological consultant adjuvant therapy equipment. A process of the method comprises the steps of: A, carrying out extraction of key words, expansion key words and work string sequence on input natural language statements; B, carrying out semantic matching, wherein the semantic matching comprises key words matching, expansion key words matching and word string sequence matching, and if certain matching in the semantic matching exceeds a threshold value, the matching is judged to be successful, or else, information incapable of being answered is output; and C, carrying out conversation management and outputting return statement, wherein the conversation management comprises rehearsal, a content reflection technology and conversation context management. The invention can be used independently or mutually compensated with a psychological consultant, which makes up the deficiency of the psychological consultative organization to some extent.

The invention discloses an intelligent gateway of the internet of things capable of being customized by software, which comprises a plurality of protocol interfaces arranged on an intelligent gateway, a protocol configurator fitting the protocol interfaces and a protocol processor controlling the protocol interfaces, wherein the protocol interfaces include upper-layer application protocol interfaces and free protocol driving interfaces; the protocol configurator allows a user to customize the protocol attribute of the intelligent gateway and describe operation rules correlating to the protocol; and the protocol processor is used for analyzing the configuration and definition of the protocol configurator on the intelligent gateway, valuating the attributes of various ports and protocol parameters and dynamically injecting operation definitions relevant to the protocol, so as to enable the intelligent gateway to be capable of dynamic service customization. According to the invention, the intelligent gateway provided by the invention, which can support multiple protocols and support multiple interfaces and has expandable external devices is realized.

The invention discloses a deep intelligent driving application-oriented traffic sign recognition algorithm, based on consideration of multisource open beta data set translation expansibility and stability by a network, a unified category representation of the multisource open beta data set for traffic signs is built, through a data enhancement strategy randomly clipped based on local context information, expansion of the data set is realized, and a multiscale convolution feature map network and an aggregate network iteration alternate verification training strategy is adopted, a detection network and a recognition network with relatively good performance are obtained, and thus the networks are easy to train and faster in convergence; based on a characteristic of convolution from bottom to top, and through a top-to-down fusion multiscale convolution characteristic network modeling method, the recall ratio of small-sized traffic signs is improved; and design of deeper and more complicated Convnet is not pursued to obtain a higher object recognition rate, but aiming at the characteristics of traffic sign targets, through a contrast experiment, an aggregate network capable of achieving better information flow and better performance is proposed, and efficiency recognition of traffic signs is realized.

The invention discloses a photovoltaic generation and large public building integration wireless remote networked monitoring system. Intelligent wireless monitoring devices are arranged at the output ends of each group of photovoltaic array and the input and output ends of each group of inverter, form an electric quantity data wireless acquisition network with a ZigBee central node, and converge acquired data to the ZigBee central node, and the node is connected and communicates with an RS485/RS232 converter and a ZigBee/general packet radio service (GPRS) wireless gateway to realize GPRS/Internet network-based electric quantity data wireless remote real-time transmission. Therefore, a monitoring center remotely monitors electric quantity information output by each photovoltaic array and the electric quantity information output in the grid-connected working of the inverters and a common power grid, an electric quantity database of a photovoltaic generation system is established, and a good informational foundation is laid for the scientific utilization of renewable energy sources.

The invention relates to a network manage system, which comprises user terminal for sending service request to corn module, and receiving feedback result; corn module for receiving the request and receiving the information reported from network unit; managed network unit for responding the service request of corn module and reporting order information to the corn module; the corm module comprises web service layer module, service manage layer module, service processing layer module, data storage layer module, access layer module which are interlayer managed. The invention also provides a relative manage method. The invention can improve system safety and flexibility without block.

Methods and kits for propagating hematopoietic stem cells are provided. The methods comprise culturing cells in medium comprising one or more angiopoietin-like proteins, under conditions sufficient for expansion of HSCs. Angiopoietin-like proteins include angiopoietin-like protein 2, angiopoietin-like protein 3, angiopoietin-like protein 4, angiopoietin-like protein 5, angiopoietin-like protein 7, and microfibrillar-associated glycoprotein (Mfap4). Methods for identifying hematopoietic stem cells are provided and isolated hematopoietic stem cells are also provided.

The invention discloses a method for constructing a database based on a virtual machine management system. The method comprises the following steps of: S1, establishing a data table according to construction parameters of a data table which are inputted by a user; S2, determining that a field restrained by a foreign key exists in the data tables by taking a virtual machine mapping table and a virtual machine example table as main tables, and giving out a referenced field of the field in the main tables; S3, building an index for the referencing field and the referenced field; and S4, repeatedly executing the steps S1-S3 to build all data tables to finish the construction of the database. The method for constructing the database enhances expansibility, portability and compatibility of a virtual machine management and scheduling system, improves the reusability of construction codes of the database and reduces the complexity of the development of private cloud platform.

The implementation instance of the invention discloses multimedia meeting (MM) system, equipment. The system includes following parts: gatekeeper in use for forwarding information of managing MM sent from terminal to meeting management unit; based on the said information of managing MM, the meeting management unit controls the multimedia control equipment to manage MM; under control of the meeting management unit, the multimedia control equipment manages MM; MM management includes following events: conferencing MM, or canceling MM, or modifying conferencing attribute of MM, querying MM, or requesting to take part in MM, or quitting MM. The invention solves disadvantages that workload of gatekeeper is too heavy in mode of requesting to convoke meeting initiated by terminals.

This invention discloses a 2T-string NOR-based CAM logic cell comprising two physical NAND cells connected in series with two horizontal WLs and one vertical BL and one vertical SL. Additionally, a sector of NOR-based CAM logic cell array is configured with N vertical cell strings each including M 2T-string NOR-based CAM logic cells connected in parallel sharing a local vertical SL and one dedicated vertical ML as an Operand word vertical page. Each 2T-string NOR-based CAM logic cell can be either a binary or ternary CAM cell associated with two or three physical states assigned to NAND cells' Vt levels for defining CAM logic states. Logic match of M-logic-bit inputs is found for at least one vertical page if the corresponding M 2T-string NOR-based CAM logic cells are in non-conduction state, providing M times faster Compare performance over the NAND-based CAM and 2 time faster than SRAM-based CAM.