104results about How to "Guaranteed accessibility" patented technology

The invention provides a forwarding method used for constructing multi-hop routing in a wireless self-organizing network, which is based on an ARP proxy system and a mixed routing system. The method comprises the following steps that: a monitoring module of each node monitors each message sent and received by the node in real time; adjacent hosts interact respective routing information in a single-hop range in real time; each node stores a partial or complete topology table of the whole network; when a certain node of the network sends an ARP request to a node which is not directly connected with the certain node, the certain node searches for a next-hop node and sends a routing detection message to the next-hop node according to a routing list; and if the route is reachable, the detection message is transmitted to a target node step by step and returns a routing reachable message, and ARP proxy tables are arranged at various nodes along the route, so a multi-hop route is established. The invention also comprises a method for maintaining and updating the route through modification of network topology detection. The invention also comprises a device used in the network, and describes a complete communication system shown in graph 1.

The invention discloses an unmanned vehicle path planning method for a special scene in a 5G environment, and the method depends on an unmanned vehicle path planning system based on 5G communication.The path planning system comprises an unmanned vehicle, a road side unit, a cloud platform, and a 5G network. The method provided by the invention has the characteristics of a high transmission speed,more transmission information and high signal quality, can overcome a problem of special scene communication, and realizes efficient, stable and rapid information interaction among the unmanned vehicle, a road side unit and a cloud platform; through organic combination of historical information and real-time perception, computing resources occupied by the cloud platform in conventional operationare effectively reduced, and the safety and accessibility of unmanned driving are guaranteed; and the vehicle, the road and the cloud interact, all-time, all-weather, full-coverage and high-precisioncollaborative perception can be achieved, and a decision of path planning and adjustment is completed together so that the vehicle running efficiency is improved.

The invention discloses a method for state presentation based on MQTT. The method comprises the steps that 1, state messages sent to a second client by a first client are received; 2, the state messages needing to be cached are refreshed, wherein according to the refreshing process, the newest state message is restored and the earlier state messages are deleted according to the time sequence; 3, the newest state message is stored to a caching zone; 4, the newest state message stored in the caching zone is pushed to the second client. The invention further discloses a system for state presentation based on MQTT. The system comprises a state message receiving unit, a state message refreshing unit, a state message buffering unit and a state message pushing unit. According to the method, state presentation is achieved on the basis of MQTT, the advantage of low weight of MQTT is obtained, and meanwhile the effectiveness of the state messages is guaranteed according to the mechanism that only the last state message is cached.

The invention relates to an intersection traffic signal control method and system and especially relates to a jammed intersection signal timing method and a ground induction and monitoring system. The method and system can control whether to switch traffic signal lamp phase by calculating average vehicle head distance in parking, average flow, yellow light time and full red time, and then calculating monitoring distance and monitoring whether the monitoring area is occupied in a monitoring range in real time. Exit way vehicle pass state information is fed back to an intersection signal control system, so that inner space of an intersection can always be utilized by vehicles, possibility of generation of large-area jamming at peak period is reduced, traffic emergency rescue speed at the peak period can be improved, and the case that a rescue vehicle cannot reach the accident scene is prevented. The method can enable the effect of a dynamic path inducing system to be played to the fullest degree, and can provide guarantee for the smooth flow of the urban traffic network.

A technology for manufacturing the frame of motorcycle on welding production line includes such steps as assembling the skeleton of the motorcycle frame, symmetrical welding by two welding robots, assembling whole frame, welding whole frame, discharging from production line, and lifting the welding fixture up to the top circulating track.

The present invention discloses a method of releasing and sending route with a routing equipment, which comprises the following processes that weather the routing equipment is in the primary condition is detected; the routing equipment spans the routing information, and marks the results in the routing information; the routing information is sent. The embodiment of the present invention makes the routing information have the describing marker ability of the main / standby equipment through arranging the routing attributes (public attributes or private attributes) of the routing information, and influences the route selection of the far end routing equipment after the routing information is sent, therefore ensures that the far end routing equipment selects the main routing equipment main route to the forward message, and ensures the accessibility and connectivity of the network.

The present invention discloses a sliding mode robust control method of a discrete time delay uncertain system. A multi-population chaotic simulated annealing particle swarm optimization algorithm is used to optimize a support vector regression machine (SVR) structure parameter, a combined kernel function support vector regression machine is used to give a system prediction model, a control law is solved through a novel sliding mode reaching law, and the reachability of a sliding mode can be guaranteed. The method is used for the robust control of uncertain discrete system with state time delay.

The invention discloses a dual-blade sleeve electrolytic processing device and a processing method thereof, and belongs to the field of electrolytic processing. A clamp device comprises a cathode mounting clamp and a chuck fixing clamp. For an integral component with big and small blades, an integral type tool cathode of two characteristics is designed, and the tool cathode is axially fed to realize processing of workpieces; dual-runner flow-equalizing liquid supply flow fields are designed, so that a sufficient electrolyte solution is guaranteed in a two-blade processing area; an insulated sleeve in the cathode base is designed, and a protective sleeve for blades at adjacent two sides is designed, so that processing blades and processed blades are prevented from a stray current corrosionphenomenon; an insulating layer is coated on the front edge end surface of the cathode, and an insulating block is added on the tail part of the rear edge, so that a cathode non-processes area is isolated from the workpieces, and therefore, a base body of a workpiece disc body and the tail edges of the blades are protected.

The invention discloses an HF (High Frequency) radio state networking method based on a resource distributing policy. The network is of a star topologic structure which comprises a central part and peripheral nodes. The central part comprises a network controller and a group of HF transmitters and a group of HF receiver, respectively connected with the network controller. The peripheral nodes comprise a half-duplex HF radio station for executing the steps of uploading service data and control signaling of the peripheral nodes and receiving the commands and the control signaling of the central part. The central part is used for receiving centralized service data and control signaling of the peripheral nodes and issuing the commands and the control signaling of the central part. The network controller controls the work state of the HF transmitters and the HF receivers. The transmitter, the receiver and communication frequency possibly used form a resource pond, and uplink and downlink frequencies are selected through uplink and downlink chains. According to the method provided by the invention, the performance is reliable, and the network has good expandability.

The invention discloses a welding manufacturing technology method of a large water turbine ball valve of an all-welded structure. The method represents innovation of an assembly-welding technology method of the large water turbine ball valve of the all-welded structure and is the essential change of the manufacturing method. The technological scheme of coating high-temperature-resistant paint before assembly welding of a shaft sleeve as a welding auxiliary tool, a valve and a valve body single-piece and performing symmetric welding in the vertical welding position during rotating of the valve is applied for the first time, with the adoption of the method, accessibility and operability of welding are greatly improved, welding deformation is effectively controlled, quality of a ball valve welding seam is guaranteed by intermediate flaw detection, critical dimensional stability of the ball valve is guaranteed, and the assembly-welding quality of the large water turbine ball valve of the all-welded structure is remarkably improved accordingly.

The invention provides a network dynamic routing calculation method, a device and a device, which relate to the technical field of the routing calculation method. The method comprises the following steps of: whether an adjacent node of a current node is a destination node is judged; if yes, the destination node is selected as the next node; if not, the distance between the current node or the adjacent node and the destination node is calculated according to the node vector, and the first distance value and the second distance value are obtained respectively; the node vector is obtained by machine learning training; An adjacent node corresponding to a second distance value that is less than the first distance value is randomly selected as the next node. When the link selected by the currentnode in the network is suddenly disconnected or congestion occurs, the invention can quickly select other available adjacent nodes as the next node, the reaction time required is short, and the reachability of the route can still be ensured to the maximum extent.

The invention discloses an overall layout method for an automatic drilling-riveting machine capable of adjusting the height and a rotary angle of an aircraft panel. According to the overall layout method, the automatic drilling-riveting machine comprises a drilling-nailing-side machine tool and a riveting-side machine tool which are arranged on two sides of an aircraft plate tooling; the aircraft plate tooling comprises a tooling base, an aircraft fixing frame and rotary bases; the tooling base adopts a U-shaped structure; rams which are in sliding fit with the rotary bases are arranged on two sides of the U-shaped structure; and the aircraft panel is rotationally matched with the rotary bases. By adoption of the aircraft panel, the aircraft panel fixed on the aircraft panel tooling can be moved into the gap between the drilling-nailing-side machine tool and the riveting-side machine tool; when the aircraft panel tooling is moved into the intermediate gap of the automatic drilling-riveting machine, the aircraft panel tooling and the automatic drilling-riveting machine are prevented from interfering in each other; and the aircraft panel is fixed on the aircraft panel fixing frame, the aircraft panel fixing frame can clockwise or counterclockwise rotate by a certain angle on the rotary bases, and the rotary bases can move up and down on the rams to change the height, thereby expanding a machinable area on the aircraft panel.

The invention discloses a method for determining user plane links. The method includes the following steps that: the identifiers of eNodeBs and SGWs (Serving Gate Way) of which the user plane links are abnormal are obtained; a first list is obtained according to the identifiers of the eNodeBs and the SGWs; and when an attachment request of a terminal is received, an SGW which can establish a normal user plane link with a first eNodeB is determined based on the first list, wherein the first eNodeB is an eNodeB in which the terminal resides. The invention also discloses an MME (mobile management entity), another method for determining user plane links and an eNodeB. The corresponding relations of the identifiers of the eNodeBs and the SGWs of which the user plane links are abnormal are recorded in the first list; the SGW which can establish the normal user plane link with the first eNodeB is determined based on the first list; and therefore, the accessibility of S1-U user plane links can be ensured at least.

The present invention discloses a control method and device. The method applied to the home controller includes a step of determining a first communication for performing data communication with a home appliance when a control instruction for the home appliance transmitted by a mobile terminal is received, a step of transmitting the control instruction to the home appliance through the first communication mode and detecting whether response data sent by the home appliance is received or not within a preset time threshold, a step of continuing to perform data communication with the home appliance through the first communication mode if so, and a step of switching the first communication mode to the second communication mode if not, transmitting the control command to the home appliance through the second communication mode and continuing to perform data communication with the home appliance through the second communication mode. By using the technical scheme of the invention, the stability of the data transmission of the home appliance can be improved.

The invention discloses a corner transition smoothing method for smoothing axial jerk. The corner transition smoothing method comprises the following steps: designing a composite trigonometric function speed planning method; carrying out look-ahead initialization; constructing a corner transition curve, calculating axial kinematics trajectories on coordinate axes under axial speed limitation, corner section length limitation, contour error limitation, maximum feeding speed limitation and maximum axial acceleration limitation, and synthesizing the axial kinematics trajectories on the two coordinate axes to obtain the corner transition curve; and performing reverse scanning, and performing composite trigonometric function speed planning on all interpolation line segments forwards in sequencefrom the last small line segment. According to the method, a composite trigonometric function speed planning method is utilized, corner transition curve construction and uniaxial speed planning are completed at the same time within one step, the processing time consumed by motion trail control is remarkably shortened, smooth axial speed, axial acceleration and axial jerk control is achieved, andthe machining efficiency and the machining quality of the numerical control machine tool are improved.

The invention discloses an optimized design method for a mult-heat-source annular pipe network. The method includes building a multi-heat-source annular pipe network optimization model and adopting a genetic algorithm to solve the optimization model, to be precise, wherein the multi-heat-source annular pipe network optimization model takes annular equivalent cost of the pipe network as a target function and takes parameters like pipe diameter of the pipe network and lift of a circulating water pump as optimization variables, and optimization of the parameters of the pipe network is realized by adopting the genetic algorithm. By the optimized design method, accessibility of the designed multi-heat-source annular pipe network under different running conditions can be met, and the pipe network can be ensured to have high economic benefit.

The invention discloses metal-doped hierarchical porous biochar with a three-dimensional frame structure and a preparation method of the metal-doped hierarchical porous biochar. The preparation methodcomprises the steps of (1) soaking and draining a biomass raw material, drying, and grinding into powder for later use; (2) adding the biomass raw material powder, soluble metal salt and potassium hydroxide into deionized water, and performing stirring and ultrasonic treatment until the materials are uniformly mixed to obtain a mixed solution; (3) carrying out high-shear emulsification on the mixed solution to obtain an emulsion; and (4) carrying out freeze drying on the emulsion, carbonizing, pickling, filtering and drying to obtain the metal-doped hierarchical porous biochar with the three-dimensional frame structure. The metal-doped hierarchical porous biochar with the three-dimensional frame structure is rich in pore channel structure and can store a large amount of sulfur elements and effectively constrain the sulfur elements, part of amorphous carbon can be converted into graphitic carbon due to the existence of metal particles, the conductivity of a carbon material is enhanced,the synergistic effect of physicochemical adsorption of polysulfide can be achieved, the shuttle effect is effectively inhibited, and the electrochemical performance of the electrode material is improved.

The invention discloses a satellite delay tolerant network-based hybrid routing algorithm. According to the algorithm, global optimal routing and local optimal routing are combined; a next hop satellite node with a larger utility value is selected according to encounter interval time, a link connectivity rate and a link congestion possibility; and therefore, the reliability of routing can be improved, and the arrival rate of entire network messages can be improved.

The invention relates to an automatic welding device achieving low deformation for a circular seam of a thin-wall aluminum alloy oil tank. The automatic welding device is used for annularly welding tank body end plates and a tank body plate into a whole. The peripheral areas of the weld joint before and after welding are cooled at the same time, the cooling speed of base metal around the weld joint is increased, and deformation before and after welding is reduced. A robot cooperative control mode is adopted, the accessibility of the welding position is guaranteed while the cooling effect is guaranteed, and full-automatic welding of peripheral weld joints can be achieved. When the device is used for welding the thin-wall aluminum alloy oil tank, the tack welding procedure can be omitted, and the welding efficiency is improved by 20%-40%. By means of the automatic welding device, welding manufacturing of thin-wall aluminum alloy oil tanks of different sizes can be achieved, automatic high-precision welding of circular seams of various aluminum alloy oil tanks is achieved, and therefore welding stability is improved, and robot welding of thin-wall components can be efficiently and rapidly achieved.

The embodiment of the invention provides an information transmission method, communication equipment and network equipment. The information transmission method comprises the following steps that: first communication equipment sends a request message to network equipment to request the network equipment to schedule resources for transmitting sidewalk information between the first communication equipment and second communication equipment, receives indication information which is sent by the network equipment and is used for indicating the resources, and sends the sidewalk information to the second communication equipment on the resources. According to the embodiment of the invention, the accessibility of the sidewalk information can be ensured.

The invention provides a barrier-free waste recycling device. The barrier-free waste recycling device is used for solving the problem that a dustbin can not be opened for waste delivery without unlocking and opening an intelligent waste recycling device in the prior art. The device comprises a box body, a door panel, a door frame, a motor, a rotating shaft, a pulley, a telescopic rope retracting device and a movable dustbin. The telescopic rope retracting device comprises a telescopic part and a rope retracting part which are fixedly connected. The movable dustbin is placed in the box body, the door frame is arranged on the upper portion of the box body, the door panel is connected with the door frame through the rotating shaft arranged on the upper side of the door panel, the motor is arranged on the inner upper portion of the box body, the pulley is arranged on the inner lateral side of the box body, the telescopic part is fixedly connected with the lower side of the door panel, andthe rope retracting part passes through the pulley and is fixedly connected with the motor. By means of the device, barrier-free waste delivery can be achieved both automatically and manually, and corresponding classification awards can be issued to corresponding users when waste is delivered automatically.

The embodiment of the invention discloses an information processing method, terminal equipment, a server and a storage medium. The method comprises the following steps: acquiring a real position of the terminal equipment; constructing k-1 false positions corresponding to the real position by adopting a first false position generation algorithm, and reconstructing at least one target false position which cannot be reached by adopting a second false position generation algorithm to obtain a reconstructed first anonymous block, wherein all positions in the reconstructed first anonymous block can be reached; generating a query request based on the reconstructed first anonymous block, the first identification information of the terminal device and the request content, and sending the query request to a server. Therefore, the real position of the user is hidden by constructing the anonymous block, and the unreachable false position is reconstructed by calculating the accessibility of the position, so that the credibility of the false position in the anonymous block is ensured, the user movement track is further prevented from being mined, and the safety of user data is enhanced.

The invention discloses a scheme for designing a plane T-shaped intersection through main road lane changing, relates to a traffic organization design and traffic control method and belongs to the field of traffic design and traffic control. According to the traffic organization design and traffic control method, the intersection capacity is improved and intersection delay is reduced; meanwhile, safety of pedestrians and non-motor vehicles is improved. According to the method, intersecting lane changing is carried out on a main road in the intersection through main road intersecting, and straight and left turning conflict points are moved outwards; the left turning traffic volume is free of delay within the range of the intersection. Meanwhile, original three-phase control is changed into two-phase control, and the period of signal timing is greatly reduced. The signal and coordination control over the two conflict positions can be easily implemented, and green wave traffic is achieved. The demanded quantity of left turning of a primary road and branch roads and smooth road passage can be achieved.

The invention provides a communication node capable of automatically adjusting transmission power according to communication quality, and a communication system of internet of things, including the communication node. The communication node is characterized by comprising a storage unit, a communication quality acquisition unit for acquiring real communication quality value between the communication node and a transmission end communication node, a judgment generation unit for judging whether the real communication quality value is in a standard quality range, a calculation unit for calculating a power adjustment value if the real communication quality value is not in a standard quality range, a communication unit for transmitting the power adjustment value to the transmission end communication node, receiving information after the transmission power is adjusted by the transmission end communication node, and also receiving the power adjustment value transmitted by a receiving end communication node, and a power adjustment unit for performing corresponding adjustment on the transmission power of the communication unit according to the received power adjustment value.

The invention relates to a message processing method and device, electronic equipment and a storage medium. The message processing method comprises the following steps: receiving a message operation request sent by a first client; generating a first operation message and a second operation message according to the message operation request, the first operation message and the second operation message comprising identification information of the first message; and sending a second push message comprising the second operation message to the second client, so that the second client executes a predetermined operation on the first message according to the second operation message after receiving the second push message. According to the message processing method, the first message processing consistency of the clients of the plurality of receiver terminals is improved, so that the user experience is improved.

The invention belongs to the plant quarantine standard sample technology research and development field, and in particular, relates to a preparation method for a soybean standard sample. The preparation method for the wild soybean standard sample mainly includes determination of an expert group, standard sample source, standard sample expanding propagation, standard sample screening, standard sample production process, standard sample uniformity inspection, standard sample stability inspection and standard sample storage; wild soybean seeds collected in fields are used as raw material, wild soybean standard samples having representativeness are prepared through isolation planting, expanding propagation, screening, preparation, uniformity inspection, stability inspection, packaging and storage and other procedures, an identification basis is provided for plant inspection and quarantine works, and a real object reference is provided for protection of national species resources.

The invention provides an integrated system and a self-adaptive communication method. The method comprises the steps that S1 a front end device establishes UDP communication and HTTP communication with a control platform, and reports first heartbeat to the control platform through UDP communication; S2 the control platform detects whether the front end device is abnormal according to the first heartbeat, and if so, the step S3 is executed, otherwise the step S4 is executed; S3 the control platform acquires the first log package of the abnormal front end device through UDP communication and HTTP communication, and sends a first task to the front end device according to the front end device abnormal information acquired by analyzing the first log package to ensure the normal operation of the front end device; and S4 when an execution task needs to be sent, the control platform sends the execution task to the front end device through UDP communication and HTTP communication. According to the invention, a dual-channel communication method is used to ensure the accessibility between the front end device and the control platform; when the front end device is abnormal, manual detection and maintenance are avoided; and the maintenance cost is reduced.

The invention discloses a dual-lane-changing cross road intersection design scheme. To be specific, the invention, which belongs to the traffic design and traffic control field, provides a traffic organization design and traffic control method, thereby improving the intersection traffic capacity, reducing the intersection delay, and enhancing the pedestrian and non-motor vehicle security. According to the method, on the basis of main road intersecting changing, intersecting lane changing of a main road is realized at an intersection; a conflict point of a straight driving lane and a left turn lane is moved externally, thereby realizing a no-delay effect of the left-turn traffic volume in the intersection range. Meanwhile, the original three-phase control way is changed into a twp-phase control way, thereby substantially reducing the signal timing dial period, implementing signal and coordination control at two conflict points conveniently, realizing the green-wave traffic, and thus ensuring the left-turn demand of the primary road and the branch and smoothness of the road capacity.