93results about How to "Few nodes" patented technology

The present invention relates to a wireless home automation system having a controller for controlling a broad variety of functions via two ways communication with a plurality of devices. The controllers and devices of the system comprises means for generating a signal comprising a destination identifier, instructions related to the input / output of the destination or source device, and a repeater identifier. The devices according to the invention are adapted to act as input / output devices and signal repeating devices. The processors of each device comprises means for, upon reception of a signal, processing said information if the destination identifier corresponds to the device identifier of the device, and means for, upon reception of a signal, transmitting a second signal holding at least said destination identifier and said instruction if the repeater identifier corresponds to the device identifier of the device.

The invention relates to the field of semiconductor electronic materials, and in particular relates to a silver nanowire doped conductive silver colloid and a preparation method thereof. The raw materials of the silver nanowire doped conductive silver colloid provided by the invention comprise the following components in percentage by weight: 25-60% of micrometer silver powder, 5-30% of silver nanowires, 20-50% of epoxy resin, 1.6-4% of curing agent, 5.8-9.2% of dissolvent, 0.4-1.6% of accelerant, 0.04-0.16% of toughening agent and 0.8-2.4% of additive. The conductive silver colloid is prepared by mixing and doping single-crystal silver nanowires and silver granules, thus, the total silver doping amount is reduced to 35-45%, and the conductive silver colloid has a favorable conductive effect, high shear strength, low working temperature and good ageing-resistant performance, and the cost of the conductive silver colloid is reduced. The silver nanowire doped conductive silver colloid can be widely applied to the fields of solar cell (film, crystal silicon) conductive colloids, conductive colloid LED (Light-Emitting Diode) package and the like.

The present invention relates to a thyristor converter valve assembly. The thyristor converter valve assembly comprises a carrier on which a left valve unit and a right valve unit are arranged. Each valve unit includes reactor assemblies, resistor radiators and thyristor radiators. The thyristor converter valve assembly further comprises a water cooling system for cooling the reactor assemblies, the resistor radiators and the thyristor radiators. The water cooling system includes a main water in-coming path and a main water returning path which are communicated by a first water branch, a second water branch and a third water branch arranged in parallel. The reactor assemblies and the thyristor radiators of the left valve unit are all connected in series in the first water branch. The reactor assemblies and the thyristor radiators of the right valve unit are all connected in series in the second water branch. The resistor radiators of the left valve unit and the right valve unit are all connected in series in the third water branch. The thyristor converter valve assembly provided by the invention has a water cooling system and is simple in structure.

The invention relates to the field of map positioning error correcting, in particular to a map matching algorithm based on the hidden Markov model. The map matching algorithm comprises the following steps that (1) according to data of an electronic map, data information of the electronic map are introduced into the map to generate a grid matrix; (2) GPS groups needing to be matched are ordered, learnt and sorted; (3) a matched hidden Markov probability matrix is initialized through the GPS point groups; and (4) iteration and optimizing are conducted with current road segment sequences as candidate points, and the optimal road segment sequence is found. According to the map matching algorithm, deployment is convenient, and extendibility is high; the time for matching calculation is less, and the matching efficiency is high; the machine occupying property is low, and the matching precision is high; and the map matching algorithm can be in seamless connection with other systems.

Photo-catalytic multifunctional air clean fan comprises by turns initial filter net, first class blade, strong absorption filter layer, humidification layer, catalytic cleaning layer contented light source, active carbon resistant layer, second blade, resistance wire heating layer and shutter-type wind guiding layer. The motor connects and drives with first and second blades, wherein, the former generates positive pressure to push air forward and penetrate all clean layers and the latter is just opposite; besides, the photo-accelerating agent layer uses glass fiber carried accelerating agent to coat the ring light source structure, add cold-air leading cover on front of air inlet. It makes good use of source beam, cleans air flow, kills virus and bacteria in air, fits to north and south and four seasons; the structure is simple and easy to realize.

The invention discloses a multi-sensor fusion greenhouse inspection robot tracking method based on EKF. The method comprises the steps: acquiring distance information from three base stations with known coordinates to a robot in real time through a UWB distance measuring module based on a DS-TWR distance measuring technology while acquiring the acceleration and the course angle of the robot in real time through MPU6050 carried by the robot; acquiring a robot coordinate initial observation value from the three distance values by using a trilateral positioning model based on a least square method; carrying out iterative correction at an observation point by utilizing a Taylor algorithm; simultaneously transmitting the corrected coordinate observation value, and the acceleration and the course angle which are measured in real time into a CTRV motion model; fusing the sensor data through extended Kalman filtering; and outputting the extended Kalman filtering (EKF) result as the current position of the robot so as to complete the greenhouse inspection robot tracking method based on multi-sensor fusion. According to the invention, accurate positioning of a greenhouse inspection robot inan indoor environment can be realized, and the cost of greenhouse management is reduced.

The invention relates to an inclined pulling type suspender multi-span continuous beam structure high hollowed-out formwork system and a construction method. The system is a structure support system loaded on a support bent frame of a concrete die plate for supporting the upper floor, and the system is formed through adopting section steel to form a primary and secondary beam steel platform structure and pulling the reinforced concrete framework of the surrounding major structure through a steel pulling rod. Formwork steel platform formed by the inclined structure changes the high hollowed-out structure formwork into a general formwork board which is supported and established on the supporting platform of the inclined pulling type suspender multi-span continuous beam structure.

The integrated optimization method is for controlling production planning, dispatching and emulation on mixing batch assembly line (i.e. assembling multiple products on a assembly line at same time). The method includes procedures: smoothing customers' requirements on products; based on smoothed requirements on products, mixing integrated planning model of mixing batch assembly line is solved by using a branch delimit algorithm; obtaining best production planning, i.e. categories and quantities of products as well as dispatch or assembling sequence; observing best dispatching procedure for mixing batch assembly line by animated emulating the dispatch; determining whether customers' requirements on products are satisfied; if yes, formal plans and dispatch is ready to be excuted; based on formal plans and dispatch, arranging and controlling parts to be assembled on assembly line; based on moving speed determined by using animated emulation, controlling operation of assembly line.

The invention provides an electric network and communication network heterogeneous dual-network coupling modeling method under background of an intelligent power grid. The electric network and communication network heterogeneous dual-network coupling modeling method under background of the intelligent power grid comprises the following steps: building an electric network logic diagram model according to the network characteristic of the electric network; building a communication network logic diagram model according to the network characteristic of the communication network; building a heterogeneous dual-network coupling model based on the electric network logic diagram model and the communication network logic diagram model; realizing interaction among the electric network logic diagram model, the communication network logic diagram model and the heterogeneous dual-network coupling model in time domain. The heterogeneous dual-network coupling model is built aiming at the network characteristic of the electric network and the communication network, the modeling method is mainly applied to the hybrid modeling simulation for the electric network and the communication network, the simulation result is used for estimating the reliability and safety of the intelligent substation, micro-grid and wide-area control protection system.

The invention provides a method and system for page type setting. The method comprises the steps that when a page is analyzed, if a type setting tree of the page exists in a local cache library and a cache label in the page is identical to a cache label in the local cache library, the type setting tree of the page is copied from the local cache library; according to a cache label of a page node element, update nodes of the page node element are found, and type setting tree nodes corresponding to the update nodes are generated; the generated type setting tree nodes corresponding to the update nodes substitute for original type setting tree nodes of the update nodes; in the type setting tree, the generated type setting tree nodes corresponding to the update nodes, father nodes of the update nodes and ancestor nodes of the update nodes are typeset again. According to the method and system for page type setting, the nodes of the reestablished tree can be reduced, the number of times of type setting is reduced, and the page display speed is increased.

The invention provides a node arrangement method of a wireless sensor network for monitoring forest fires. The node arrangement method includes the following steps: (1) arranging aggregation nodes along transmission wires in a forest; (2) arranging detection nodes according to the detection radius of the nodes in the direction perpendicular to the transmission wires with the arranged aggregation nodes as the basis; (3) arranging simplified nodes for assisting communication between the detection nodes as well as between the aggregation nodes and the detection nodes; (4) complementing the simplified nodes at partial node positions. The node arrangement method can meet application requirements of modern forest fire monitoring, provides an arrangement method of the nodes of the wireless sensor network for forest fire monitoring, is favorable for improving the position and the role of the wireless sensor network in forest fire early warning, breaks through the traditional node arrangement thinking, prolongs the service life of the whole wireless sensor network, and improves reliability of the wireless sensor network.

A feedback compensator for a hearing aid device has a filter arrangement that splits a signal path, to implement an adaptive feedback compensation with only one buffer memory, two splitting nodes, and two addition nodes. The feedback compensation ensues only in the feedback-susceptible frequency range of the input signal. In addition to the filtering of the input signal, it is advantageous to feed to the adaptive feedback compensation filter a bandwidth-limited signal that is taken from the amplified output signal.

The invention relates to the improvement of a blade pitch changing device of a wind power generation device, which is characterized in that a blade angle deflection driving mechanism consists of rocker bar members, pull rods and an axially telescopic power mechanism, wherein the rocker bar member is fixed on each blade shaft, the pull rods drive the rocker bar members to rotate, the axially telescopic power mechanism drives each pull rod to synchronously and axially move, and both ends of each pill rod are respectively connected with a rocker and a movable axially telescopic mechanism throughmovable pivots. The blade pitch changing device has the biggest characteristics that the blade pitch changing device is greatly simplified, the weight is greatly lightened, the megawatt-level weight is less than one fifth of the weight in a gear type, the reliability and the angle modulation consistency are good, and the blades are simply installed and adjusted, thereby being completely used for adjusting the blade pitch of a megawatt-level wind power generation device.

The invention discloses a method for identifying and combining broken surfaces of a complex three-dimensional body. The method comprises the steps of firstly inputting a triangle set which forms the surface of a complex geometric part; secondly judging whether triangles on the curved surface are edge-shared and surface-shared or not, if the triangles are edge-shared and surface-shared, combining the broken surfaces of the two triangles, and if the triangles are edge-shared only, not combining the broken surfaces; and finally reconstructing the triangles by utilizing a Delaunay triangulation method. According to the method, dense small triangles are combined, so that the complex three-dimensional body subjected to Boolean operation can be subjected to grid division conveniently, grid errors are not caused, grid nodes are reduced, the calculation amount is reduced, the program running speed is increased, and the efficiency is greatly improved.

The invention discloses an active node for changing an octahedral truss unit into a geometric truss. The active node for changing the octahedral truss unit into the geometric truss is a cylindrical hemisphere combined compact active node, is of an upper and lower middle face symmetrical and angular bisector symmetrical structure and comprises a node central spindle sleeve, a central spindle screw, a spherical bearing and retainer, a screw type acting rod connection lantern ring, a first lug plate type acting rod connection lantern ring, a second lug plate type acting rod connection lantern ring, a first passive rod spherical bearing seat, a second passive rod spherical bearing seat, a needle bearing inner ring, a needle bearing, a needle roller thrust bearing pad, a needle roller thrust bearing and retainer, a deep groove ball bearing, a first semi-spherical nut and a second semi-spherical nut and can be connected with two extensible lengthened active rods and four fixed-length passive rods. Four fixed-length passive rods are subjected to motion decoupling, and the node is small, flexible in motion, large in strength and high in accuracy.

The invention discloses a word retrieval method based on a bit mappings compressing bond tree, which relates to the word retrieval technique in an electronic dictionary. The method defines non-complete compressing rules, can compress the nodes of the bond tree whose keywords are mono character, to forms nodes whose keywords are multiple character. The nodes whose keywords are mono character and the nodes whose keywords are multiple character will not be taken as brother nodes, a bit mappings method is used to represent whether the corresponding son node exists in the bond tree structure, and does not need to compare, and directly locates the position of the son node through calculation, thereby the retrieval velocity can be largely improved, though a certain memory space is sacrificed.

The invention provides a method for synthesizing penicillin G sulfoxide by using a continuous flow reactor, and the method comprises the following steps: (1) providing the continuous flow reactor which comprises a peroxidation reaction system and an oxidation reaction system; (2) respectively putting hydrogen peroxide and glacial acetic acid into a first containing bottle and a second containing bottle in the peroxidation reaction system, and enabling the hydrogen peroxide to be in contact with the glacial acetic acid so as to obtain peracetic acid; and (3) enabling the peracetic acid to enterthe oxidation reaction system through a pre-cooling module, and contacting the peracetic acid with a penicillin G potassium salt aqueous solution so as to obtain the penicillin G sulfoxide and a penicillin G sulfoxide aqueous solution. The method can be used for effectively synthesizing the penicillin G sulfoxide, and in the whole process of the method, reaction materials are easy to obtain, treatment after reaction is simple, industrial three wastes are easy to treat, the yield of a target product is high, and the method is very suitable for industrial production.

The present invention relates to a sweeping robot video monitoring method and a server. The sweeping robot video monitoring method comprises the steps of using the server to receive a video communication request coming from a terminal via a public platform; according to the video communication request, generating a corresponding video communication instruction; sending the video communication instruction to a sweeping robot; providing the video data to the terminal via the public platform, wherein the server records a correlation relation of the terminal and the sweeping robot. According to the sweeping robot video monitoring method and the server of the present invention, the correlation relation between the sweeping robot and the terminal can be established on the condition of not increasing the structure complexity and the cost of the sweeping robot excessively, thereby providing the video data coming from the sweeping robot to the terminal.

The invention discloses a balance bridge at an entrance and an exit for main and auxiliary roads and a method for easing a traffic jam of the roads, the balance bridge at the entrance and the exit for the main and the auxiliary roads comprises an exit channel, an entrance channel and a balance bridge body, and the method comprises the following steps: (a) setting a driving channel under the bridge for communicating the main road with the auxiliary road; (b) setting the balance bridge body bestriding the driving channel under the bridge above the driving channel under the bridge; (c) setting abridge surface driving channel from the main road to the auxiliary road or from the auxiliary road to the main road along the upper surface of the balance bridge body; (d) enabling one of the bridge surface driving channel and the driving cannel under the bridge to be the exit channel which can only enable vehicles to drive from the main road to the auxiliary road along the vehicle driving direction, and enabling the other one to be the entrance channel which can only enable the vehicles to drive from the auxiliary road to the main road along the vehicle driving direction; and (e) enabling the vehicles to drive into the auxiliary road from the exit channel, and enabling the vehicles to drive into the main road from the entrance channel. By adopting the balance bridge and the method, the number of nodes under the jam along a demarcation line of the main road and the auxiliary road can be effectively reduced, and the status of the traffic jam of the roads can be effectively eased under the situation of not reducing the passing efficiency of entering into and exiting from the main road and / or the auxiliary road.

The invention belongs to the technical field of a complicated network, and particularly discloses a network reconfiguration algorithm based on a game theory and a genetic algorithm. The algorithm comprises the main realization steps: firstly, as for a network with N nodes, A 0-1 matrixes are initialized randomly, and a game theory strategy is initialized; secondly, according to the known node actual earnings values, node earnings values of the A matrixes are calculated, and the total earnings value of each node is calculated; thirdly, a population is updated according to the genetic algorithm, and T generations are iterated to obtain A new matrixes; and finally, according to improvement on a reconfiguration algorithm on a compressed sensing network, the algorithm is used for reconstruction on a single node until the earnings values of all nodes are equal to the actual earnings values, and an actual network is obtained. Reconstruction of a network with many nodes and a large degree can be totally correct, and the time is excessively fast.

The invention discloses a federated machine learning method and device based on security computing, a device and a medium. The method comprises the steps that S1, a participant A initiates a joint modeling task to a participant B; S2, the participants A and B start the local sample data training according to task parameters and calculate local gradient values; S3, the participant A and the participant B calculate a synthesized gradient value by using a multi-party security protocol gradient synthesis function according to the local gradient value; S4, the participants A and B update the local model parameters respectively according to the synthesized gradient value; S5, the steps S2 to S4 are circularly executed according to the number of iterations of the task parameters, and a final model is obtained when a set condition is met; S6, the participant A sends a task ending instruction to the participant B; and S7, the participant B receives the information, finishes the task and destroys the local model information. According to the method, a network channel is constructed based on a point-to-point mode, the summary gradient is realized by adopting spdz for calculation, and data leakage is prevented.

A feedback compensator for a hearing aid device has a filter arrangement that splits a signal path, to implement an adaptive feedback compensation with only one buffer memory, two splitting nodes, and two addition nodes. The feedback compensation ensues only in the feedback-susceptible frequency range of the input signal. In addition to the filtering of the input signal, it is advantageous to feed to the adaptive feedback compensation filter a bandwidth-limited signal that is taken from the amplified output signal.

The invention discloses a spatial rigid frame combined by regular polyhedrons comprising a truncated octahedron, a cuboctahedron and a truncated tetrahedron. A square surface of the cuboctahedron fits to a square surface of the truncated octahedron; a regular hexagonal surface of the truncated octahedron fits to a regular hexagonal surface of the truncated tetrahedron; a regular triangular surface of the truncated octahedron fits to a regular triangular surface of the cuboctahedron; and a basic unit is formed by fitting the truncated octahedron, the cuboctahedron and the truncated tetrahedron to each other. An array is formed by the basic unit along three orthogonal directions. An array rotating body is formed by rotating a spatial array around any spatial axis by any angle, thereby cutting out a building space based on boundary ridges of a building. A spatial rod system structure is formed concurrently by the finally formed ridges and the ridges of the truncated octahedron, the ridges of the cuboctahedron, and the ridges of the truncated tetrahedron. The spatial rigid frame combined by the regular polyhedrons is strong in anti-seismic property, high in repeatability, small in building difficulty, substantially short in both the working hour and the construction period, accordingly the spatial rigid frame combined by the regular polyhedrons can be applied to spatial structure buildings of small and medium spans.

The invention relates to the field of internet of things of an elevator, and discloses a link maintaining method and a gateway in the internet of things of the elevator. When no data are transmitted in a network for a long time, a connecting link without data interaction can be kept connected, long connection of the link in the network is maintained and the network is kept alive. The method includes the steps that registration packets are sent to a server; if feedback information, sent by the server, of the received registration packets is received, heartbeat packets are sent to the server periodically so that the link can be maintained, wherein the sending period is T1, and T1 is a number larger than 0; if data sent by the server are received or data sent by all nodes in a local area network are received within T1, the heartbeat packets are stopped to be sent. The method is used for link maintaining between access network equipment and the server in the internet of things of the elevator.

The invention discloses a quadrotor formation obstacle avoidance method based on a cuckoo algorithm improved artificial potential field method, the method improves a repulsive force function on the basis of a conventional artificial potential field method, introduces the distance from a target point to an obstacle into the repulsive force function, enables four rotors to reach an end point when the obstacle exists near the end point, and thus the problem of endpoint inaccessibility is solved. In addition, through an obstacle expansion method, a certain safety margin is divided around the obstacle, collision of the four rotors is avoided, and it is ensured that the four rotors safely avoid the obstacle. When the robot falls into a local minimum value or is in a narrow environment, the path can be planned through the cuckoo algorithm, the cuckoo algorithm is improved, the adaptability of path planning of the artificial potential field algorithm is improved through the cuckoo algorithm with the variable step size of differential evolution, the problems existing in the cuckoo algorithm are solved, and thus the planned path is better, the nodes are fewer, and the number of iterations is fewer.

The embodiment of the invention discloses a routing table entry generation method and device and a dictionary tree generation method and device. The routing table entry generation method comprises thesteps: obtaining M first routing table entries, wherein each first routing table entry comprises a corresponding relation between a route and an output interface, M being larger than or equal to 2; and merging the M first routing table entries to generate N second routing table entries, wherein at least one second routing table entry in the N second routing table entries comprises a correspondingrelation between a public route and an outcoming interface, the public route being used for indicating two or more routes, and N<M, and N and M being integers. According to the method, the M first routing table entries are combined into the N second routing table entries, so that the number of the first routing table entries is greatly reduced, the storage space of the routing table entries is saved, more routing table entries can be stored in the saved storage space, and the requirement of the market for large capacity is met.

The embodiment of the invention provides a data transmission method and system and electronic equipment, and relates to the technical field of communication. The method comprises the steps that a penetration device receives database connection information transmitted by an external network server and establishes connection with a database; the penetration device initializes a storage process to adatabase; and the penetration device receives a service request sent by the extranet server and sends the service request to the database through the strong isolation device, the database calls a storage process after receiving the service request, the storage process sends a request message to the intranet server through an http request mode, and when the database does not support the http request, an http request plug-in is installed in the database in advance. The extranet server can use the database to send the http request only by calling the penetration device, real-time communication with the intranet service is achieved, the purpose of unpacking and using is achieved, user experience and stability are improved, the request message is responded in real time, the pressure of the database is relieved, and the interruption risk is reduced.

The invention discloses a parallel microcomputer electrical anti-mislocking device, including a touch screen display, an indicator light, a power supply board, a CPU board, a main DSP board, a spare DSP board, an input board, and an output board. According to the parallel microcomputer electrical anti-mislocking device, logic of a locking loop is clear and explicit through anew locking method, locking logic can be checked at any time, and a specific fault point can be pointed out quickly which is prone for modification, repair and maintenance. At the same time, reliability under various faultconditions is realized by two kinds of locking modes which are simultaneous changing locking and different positionssumming locking. The parallel microcomputer electrical anti-mislocking device of theinvention ensures same reliability as an electrical locking mode plus a logic locking modeand at the same time has advantages of convenience in quick defect removal, easy in management, and simplicity in wiring.

The invention relates to the technical field of optical fiber communication. The invention discloses a multifunctional optical fiber adapter. An optical assembly accommodating cavity is arranged between an adapter input end and an adapter output end, and an optical assembly with an optical signal processing function is arranged in the optical assembly accommodating cavity. An optical signal processing function module can be integrated in the adapter, so that a plurality of existing optical fiber adapters do not need to be arranged like an existing function processing link, the function processing link in which the optical fiber adapter is used for a single optical fiber to a single optical fiber or used for a single optical fiber to a plurality of optical fibers can be greatly simplified,nodes through which optical signals pass are effectively reduced, the optical power loss is reduced, the number of devices is reduced, and the device cost of the whole link is reduced. In addition, the optical fiber adapter also has the advantages of compact structure, convenience in assembly, strong practicability, simple structure and the like, and is convenient for actual popularization and application.