278 results about "Network layout" patented technology

The present invention is a computer system and a method for gathering, processing and analysis of network information resulting in presentation and visualization of packet networks in the form of individual virtual flows, sometimes also called connections or sessions, containing their statistical characteristics in a time-sampled dynamics. The system, deployed as a separate device or co-hosted with other network devices, collects and processes information from all valid packets in network, classifies and maps gathered statistics to the statistics of relevant virtual flows. The statistical information is further processed by the system to provide near-real presentation, as well as stored in a searchable database for future analyses. The invention to be used by network engineers and administrators as a tool for a near real-time control of network traffic, as an analytical tool for solving network bottlenecks, network performance optimization and troubleshooting analyses, cutting costs by optimizing network layout, appropriate organization of traffic and intelligent configuration of QoS, routers and other network devices.

A method and system for simulating computer networks and computer network components to test computer network security is disclosed. A user specifies a desired configuration of a simulated computer network by using a configuration manager. The user also defines all the network components within the simulated computer network by specifying whether a component should be provided in hardware or should be simulated via software. Upon receiving the above-mentioned information from the user, the configuration manager acquires the required hardware resources from a hardware inventory. The configuration manager utilizes an interface switch that connects the hardware in the hardware inventory to produce the desired network layout. Next, the specified configuration for each of the network components is pushed into the acquired hardware resources. Computer network components to be simulated with software are subsequently initialized by the configuration manager. At this point, the user can use the simulated computer network for real-time testing of network security.

The invention provides a method for achieving automatic configuration and installation of network device, in particular to a network management system comprising a network management client terminal, a network management server, a software center, a configuration server and a DHCP server for an automatic configuration and installation of a blade server in an internet-based interactive television network. According to an overall network layout, the blade server is subjected to pre-configuration via the client terminal of the network management. According to physical location information of the blade server, a network interface configuration can be obtained via an extended DHCP and the configuration server and the software center is accessible to acquire a logic configuration and to download softwares to carry out automatic configuration and installation , thus achieving a plug-and-play characteristics of the blade server in network. The invention avoids complicated installation and configuration operation of large amount and manual installation and configuration of the local computers one by one in the blade server, thus saving the maintenance and installation cost.

The invention relates to an area type energy Internet and an integrated optimization planning method thereof. The area type energy Internet comprises local energy resources, distributed energy, production and consumption integrated energy and mutually connected area micro energy nets. The integrated optimization planning method comprises the following steps: 1, obtaining an area type energy Internet planning design database; 2, establishing an optimization mathematic model; 3, obtaining input variable parameter values needed by the optimization mathematic model from the area type energy Internet planning design database, solving the optimization model, and obtaining output data of decision variables; and 4, analyzing the output data of the decision variables to obtain a cooperation optimization result, wherein the cooperation optimization result comprises an optimal technological type selection and layout, an optimal equipment capacity, an optimal heat network layout and an optimal operation strategy. Compared to the prior art, the area type energy Internet and the integrated optimization planning method thereof overcome the defects of poor interaction between energy users and difficult supply-demand matching in the prior art and have the advantages of networking, systematization, high efficiency and the like.

The invention relates to a monitoring technology for the aquaculture environment of fresh-water fish and discloses a monitoring system for the aquaculture environment of the fresh-water fish on the basis of a wireless sensor network. The monitoring system comprises cluster head nodes connected with i nodes, wherein k cluster head nodes are connected with collecting nodes; m collecting nodes are connected with a monitoring center; and all i, k and m are natural numbers. The monitoring system is characterized in that the nodes, the cluster head nodes and the collecting nodes are configured with a water temperature sensor, a dissolved oxygen sensor, an aerator, a node processing module and a wireless transmission module. The collecting nodes also comprise an atmospheric pressure sensor, a PH value sensor and a communication module; the atmospheric pressure sensor, the PH value sensor and the node processing module are connected; and the communication module is connected with the wireless transmission module and is used for transmitting data to the monitoring center and receiving an instruction. The monitoring system disclosed by the invention can realize large-range wireless monitoring network layout, and is very suitable for automatic control of large-scale fresh-water aquaculture.

The invention provides an urban business center and retailing format concentrated area identification method based on POI data. The method comprises the steps that interest point data serve as study objects, the spatial range and the distribution situation of an urban business center are identified through a kernel density method; hot spot areas of retailing activities are detected by combining local space associated indexes, and the distributional difference of retailing format concentrated areas is further explored by taking a central urban area as a study area. The urban business center and retailing format concentrated area identification method based on the POI data has the advantages of being large in data volume and strong in real-time performance, the objectivity and the accuracy of business center hot spot recognition and retailing format concentrated area characteristic analysis can be improved, and a novel data source is provided for business space layout analysis within an urban scale; the method is beneficial for further clearing and defining a business network layout goal and improving the scientificity of government department commercial planning and retailer site selection preliminary study.

A method for analyzing the topology of a CDMA network with respect to both neighbor and target lists is disclosed. The method first defines a language that creates an input source file for communicating the layout of the CDMA network. The language expresses the sector-neighbor list relationships of all sectors in the CDMA network. Next, the method parses and builds a directed graph from the input source file to perform topology analysis of the CDMA network. The method then analyzes the input source file and directed graph for possible errors in the network layout that will lead to dropped calls. The method renders a report to the user about those error conditions and emits a file to be used as input into the CDMA database.

The present invention discloses a method for the communication by utilizing a relay base station, which is characterized in that the relay base station of one or a plurality of the concatenation are connected into a wireless communication network, to perform the wireless connection with a service base station, when the service base station is communicated with a user terminal through the relay base station, the implementation procedure is as follows: the service base station or a user terminal sends the data to the relay base station; the relay base station sends the data sent by the service base station to the user terminal and sends the data sent by the user terminal to the service base station. The application of the method can reduce the construction cost of the base station and improve the flexibility of the network layout of a wireless communication system.

A passive optical network with protective switching over consists of ring network formed by OLT and passive mating node, ONU branch connected on mating node, two sets of light receiving / transmitting modules set in OLT, 2x2 coupler and 2x N coupler set in mating node. It is featured as connecting a pair port 1 and 3 of 2 x 2 coupler to said ring network and another pair port 2 and 4 to port 5 and 6 of 2 x N coupler, connecting the other N numbers of ports at 2 x N coupler to ONU, enabling to switching over two said sets from one set to another set when one is fault.

The invention relates to a 3D MIMO channel modeling method. The method includes the following steps that: (1) simulated scenes and network layout are determined, large-scale parameters are calculated according to the scenes and calculated correlations; (2) small-scale parameters are generated sequentially based on the large-scale parameters, a probability density function and the scenes; (3) a channel coefficient is calculated; (4) the small-scale parameters are updated according to a calculation result, and a drift model is built; and (5) time evolution is carried out according to the drift model, and then, modeling is carried out. According to the 3D MIMO channel modeling method of the invention, short-term time evolution of the channel coefficient is realized through updating time delay, a departure angle, an arrival angle, polarization, shadow fading and a K factor; smooth transition between adjacent channel segments is supported; a visual-range scene and a non-visual-range scene are simulated jointly by a common framework structure, and therefore, the complexity of a model can be reduced, and multi-unit scenes can be configured freely; and an algorithm of position graph generation is expanded, and diagonal angle movement directions are considered, and smoother output is created.

The present invention relates to an arrangement, in a communications system supporting communication of packet data, for selection of a packet data gateway node or function for a mobile user station (MS; UE). It comprises a packet data gateway functional selection means, said gateway functional selection means is adapted to use a number of information parameters contained in a context set up message to select packet data gateway, and it is adapted to forward the context set up message to the selected packet data gateway node or packet data gateway function.

The invention discloses a temperature moisture collecting communication system for a greenhouse shed based on wireless sensor network, which comprises the following parts: a wireless sensor network constituted by measuring nodes which are distributed in the greenhouse shed; a monitoring device which is formed by connection of nodes in a base station and a monitoring terminal. The nodes in the base station are provided with wireless communication with the wireless sensor network. The monitoring terminal sets the communication system as a local display working mode or remote monitoring working mode through sending a control command. An input device is arranged in the monitoring terminal, such that the user can control the rate of sending data by the input device. The default rate of sending data is set as one time in per 30 minutes. The invention has the advantages of small volume, less power consumption, rapid network layout, convenient deploy and low cost.

The invention discloses a wind measurement network layout method based on wind power plant layout in a large-scale wind power base. The method includes primarily distributing a point of a wind measurement network, wherein the distributed point serves as a weather forecasting point; building a weather forecasting model; obtaining forecasting values according to the built weather forecasting model and obtaining the wind speed and the wind direction of the forecasting point according to the built weather forecasting model; optimizing the wind speed and the wind direction of the forecasting point by reference to practical geography and topography conditions of the forecasting point on the basis of atmospheric boundary layer dynamics and boundary layer meteorological theories, and obtaining precise predicted values of the wind speed and the wind direction of the forecasting point; carrying out contrastive analysis on wind measurement data of multiple forecasting points with similar atmosphere environment and similar geography, simplifying multiple pre-built wind power base places with remarkable upstream and downstream effects and strong correlation, and therefore finishing wind measurement network layout. Therefore, the aim of providing anemometer tower distributing points for wind energy resource measurement in the large-scale wind power based on low cost conditions is effectively achieved.

The invention provides a wMPS network layout optimizing method based on simulated annealing particle swarm optimization. A measuring station layout optimizing aim is one of important aims in use of a wMPS. The method aims at achieving the aim that due to the optimized measuring station layout, a to-be-measured region can be comprehensively covered with certain cost, and the requirement for measuring accuracy can be met. According to the wMPS network layout optimizing method, a reasonable positioning error model is built, a multi-objective optimization function is defined, and the network layout of the wMPS is optimized with the simulated annealing particle swarm optimization. The measuring-station network optimized layout aim of the wMPS in engineering application is effectively achieved through the rapid convergence capacity of the particle swarm optimization and the global convergence capacity of the stimulated annealing algorithm. Along with increasing of the number of measuring stations, the method has good expansibility and can provide a novel method with high adaptability for the multi-station networking measuring layout optimizing aim based on an angle intersection principle, and important theoretical value and practical significance are achieved.

The invention belongs to the technical field of circulating cooling water energy saving, and more particularly relates to a method for designing an energy-saving type circulating cooling water system. The method comprises the following steps of: drawing a circulating cooling water system and heat exchange network flow chart, acquiring technical parameters and heat load values of each heat exchange equipment, determining operation working conditions and environmental parameters of collecting points, and carrying out collection; judging reasonability of the heat exchange equipment or a heat exchange network layout, and acquiring a minimal heat exchange amount through calculation; analyzing, judging and determining high energy consumption reasons simultaneously; through optimization as well as diagnosis and analysis of high energy consumption reasons, judging reasonability of a water distribution pipe network layout, and acquiring pipeline characteristics of each branched loop and partial resistance-abnormal nodes; and calculating and designing water pump impellers by adopting a three dimensional flow technology method. The method provided by the invention has the characteristics of reasonable route design, good computability and scientificity of design parameters, accurate data, high operation heat efficiency, high economical value, good social benefits and capability of saving expenses and energy cost.

The invention relates to a virtual multi-camera target tracking video material generation method. By aiming at situations that research video source materials are in lack and scene changes are insufficient for multi-camera target tracking, the invention utilizes a vision technology to truly simulate a complex environment of the multi-camera target tracking in a real environment by creating a required scene and customizing the attributes of a tracked target and cameras, and even tracking video materials which rarely appear in the reality can be created. The virtual multi-camera target tracking video material generation method favorably simulates problems of specific complex environments, such as shadows, target occlusion, illumination variation, target deformation, texture changes, target generation and disappearing and the like which are not easy to realize in the reality in a target tracking process, and the three-dimensional realization processes of multi-camera calibration, collaborative operation, synchronous calibration, network layout and the like are solved. The frame data of a camera channel is processed to generate a virtual multi-camera target tracking vide, and great help is provided for target tracking algorithm research and verification.

The invention discloses an urban road network optimization method under optimal reachability. The method includes the following steps that: a research area is defined, road network geographic information in the research area is obtained, wherein the road network geographic information contains road grade, road length, design vehicle speed and road network connection condition; based on the complex network theory, an urban topological network is constructed, a node importance calculation method is put forward, the importance degree of each node is calculated; the node importance is introduced into a reachability calculation method, and the reachability value of the urban road network is calculated; and with the optimal accessibility adopted as an objective function, a road network optimization model is established, a genetic algorithm is selected to solve the optimization model, and an optimized layout decision is provided on the basis of an existing road network, so that a decision can be provided for the selection of an optimal scheme for road network reorganization and expansion. With the method of the invention adopted, on the one hand, the intensity of the connection between traffic communities in a city can be reflected, on the other hand, the optimization model is established with the optimal accessibility as the objective function, a decision can be provided for urban road network layout optimization, and therefore, road network resources can be rationally allocated, and operation efficiency of urban traffic can be improved.

The invention discloses a single station earthquake P wave detection warning device and relates to seismological observation technology. The single station earthquake P wave detection warning device comprises a data acquisition module, a data analysis and logging module and a communication and alarm module, wherein the data acquisition module, the data analysis and logging module and the communication and alarm module are connected in sequence. The data acquisition module is composed of three-axial force balance acceleration sensor and an external connection acceleration sensor interface. The data analysis and logging module is composed of a analog-digital (AD) convertor, a digital signal processor (DSP), an advanced RISC machine (ARM) and system thereof, a global position system (GPRS) module, a P wave early warning algorithm, a real-time clock and a secure digital (SD) card storage. The communication and alarm module is composed of a computer, an alarm box and a P wave early warning instrument application software. The single station earthquake P wave detection warning device has the functions of acquisition, storage, analysis and alarm. Earthquake monitoring and earthquake P wave early warning are achieved only a single device is needed. The single station earthquake P wave detection warning device has the advantages of being small in size, light, easy to carry, convenient to install, low in cost and suitable for network layout of an earthquake early warning project and a national earthquake early warning science research project for a key project.

The invention relates to a three-dimension fracturing design method for a horizontal well in a compact sandstone reservoir, and belongs to the technical field of oil-gas exploration. The size of an improved sand body of the horizontal well is calculated in combination with sand body distribution in an oil-gas reservoir, three-dimensional earthquake prediction, horizontal well segment oil-gas display, adjacent well physical property parameters and a well network layout, and the length of each segment of the horizontal well, fracture half-length of fracturing and designed sand adding amount in fracturing are determined to achieve the effect that different fracturing design parameters are adopted for different horizontal segments of different types. The pertinence of the fracturing design for the horizontal well is improved, and the whole horizontal segments are improved evenly, so that single well controlled reserves of the horizontal well and the single well yield of an oil-gas well are maximum. The three-dimension fracturing design method is not only suitable for the fracturing design of the unconventional compact sandstone reservoir horizontal well, but also can be used in fracturing design of horizontal well improving in conventional clastic rock reservoir, carbonate reservoir, shale reservoir, volcanic reservoir and the like.

Certain exemplary embodiments comprise a method, comprising: in a sensor node network comprising a plurality of sensor nodes, each sensor node from the plurality of sensor nodes having location coordinates that are initially unknown, each sensor node from the plurality of sensor nodes having neighbors, each sensor node from the plurality of sensor nodes capable of determining distances only to that sensor node's neighbors: for each sensor node from the plurality of sensor nodes, communicating with that sensor node's neighbors; and based only on communications between neighbors, in a fully distributed manner, generating a sensor node network layout that indicates the location coordinates of each sensor node.

The invention discloses an automatic crack detection and alarm system and method for a vane of a wind driven generator. The system consists of a detection device and control equipment, wherein the detection device automatically detects the state of the vane according to deformation of a bonded resistance strain gage and controls an alarm module to send an alarm signal; when detecting the state of the vane, the detection device has a function of detecting humiture information of a surrounding environment; interiors of the system are mutually connected through a ZigBee network, so that a complicated network layout is not required; and the system has a simple structure. The system communicates with the outside through general packet radio service (GPRS), so that a management department can master the state of the vane and the humiture information timely; devices with low power consumption are adopted in the system, and a method for regularly detecting residual sleep time is adopted, so that the power consumption is reduced to the maximum extent. The automatic crack detection and alarm system can be widely used for automatically detecting the state of the vane of a wind turbine generator set in real time; according to the detection technology, the vane with a crack can be pre-warned, so that the secure and reliable running of the vane is guaranteed; and the system has high economic and social benefits.

The invention discloses an RFID network topology method based on the multi-agent evolutionary algorithm and belongs to the field of automatic control and information technology. The method combines a multi-agent system with evolutionary computation to solve the RFID network topology problem. The method is characterized in that each agent in an agent grid is initialized according to two algorithms, and then a neighborhood competition operator, a neighborhood right-angled crossover operator, a mutation operator and a self-learning operation are designed to optimize the agents. Verification results show that the method has great advantages in terms of solving the maximum coverage rate of reader-writers, the minimum number of the reader-writers and the minimum interference rate of the reader-writers when used for evaluating and solving the RFID network topology problem and is an effective method for solving the RFID network topology problem.

The invention discloses a method used for evaluating network performance based on testing data in a planning stage and equipment thereof,; wherein, the method comprises the steps as follows: step 1: the testing data of each district in the network layout proposal is gained; step 2: the route loss coverage of corresponding district is gained according to the testing data of each district; step 3: the signal coverage of corresponding district on each position of the testing route is gained according to the route loss coverage; step 4: the performance index is gained according to the coverage signals received at each position of the testing route of each district and the network performance is evaluated by the performance index. The method and the device can evaluate/confirm whether the planning proposal achieves the requirement or not in the layout design stage so as to find the problem as early as possible, ensure that the final proposal meets the requirement of the clients, avoid the problem that the proposal can not meet the requirement or lead to reworks owning to incorrect design, and improve the competitiveness of the layout proposal.

The invention discloses a method and a system for locating and perceiving an object in a wireless sensor network. The method comprises the following steps: a sensor node starts to send a detection message to a neighbor node after receiving a work instruction of a management node; the sensor node sends the identification of the sensor node and the identification of a first neighbor node to an aggregation node or a second neighbor node when judging that the signal strength of a detection message from the first neighbor node is lower than a threshold value, and then the identifications are sent to the management node by the aggregation node or are sent to the aggregation node by the second neighbor node and then are sent to the management node by the aggregation node; the sensor node sends the detection message to the neighbor node and receives the detection message from the neighbor node when judging that the signal strength of the detection message from the neighbor node is not lower than the threshold value. The method can shorten the working time of the nodes through network layout and logic judgment on the nodes, so that most of the nodes have long sleep time and energy consumption is reduced.

A method determines an optimal or near-optimal conveyance network layout in which revenue from serviced customer locations is maximized while the cost of installing and/or maintaining the conveyance is minimized. The conveyance may, for example, be a fiber optic telecommunications cable or a power or utility distribution system. Algorithms in the method generate primal and dual bounds in a Prize-Collecting Steiner Tree Problem in Graphs (PCSPG). Those algorithms originate from a Lagrangian Non-Delayed Relax-and-Cut (NDRC) based approach and incorporate ingredients such as a new PCSPG reduction test, an effective Local Search procedure and a modification in the NDRC framework that allows additional reductions in duality gaps to be attained.