131 results about "Real time routing" patented technology

Live router migration is implemented by separating the logical features of a virtual router from its physical features. Tunnels are established between a source (physical) router and a destination (physical) router, allowing the control plane of the virtual router being migrated to send and receive messages from the destination router. The control plane information is then transferred to the destination router, which functions to clone the data plane at the destination router. Outgoing links from the destination router are then be established. The double appearance of the data plane at both the source and destination routers allows for the data plane information to be transferred asynchronously over to the destination router. Once all of the data plane information has been transferred, incoming data traffic links at the destination router can be established and the tunnels between the routers taken down.

A packet forwarding method for optimizing packet traffic flow across communications networks and simplifying network management. The invention provides look-up-free and packet-layer-protocol transparent forwarding of multi-protocol packet traffic among Layer-N (N=2 or upper in the ISO OSI model) nodes. The invention enables flexible and efficient packet multicast and anycast capabilities along with real-time dynamic load balancing and fast packet-level traffic protection rerouting. Applications include fast and efficient packet traffic forwarding across administrative domains of Internet, such as an ISP's backbone or an enterprise virtual private network, as well as passing packet traffic over a neutral Internet exchange facility between different administrative domains.

System and method for performance-based routing in an SDN. An SDN controller is configured to adaptively determine data transmission routes based on real-time route performance evaluation provided by a virtual router. The virtual router includes a route detection component to attain route performance data and a performance evaluation component to evaluate the route performance based on predetermined criteria provided by the SDN controller. The evaluation result is sent to the SDN controller and used to intelligently determine a superior route selection and route usage for a specific application program. According to the determination, the SDN controller updates the flow table associated with the virtual router for subsequent data transmission.

Systems and methods providing a route optimization mechanism for transmitting data traffic across different autonomous systems based on real-time route performance detection. Regarding a request for routing data between a source node that is coupled to a first autonomous system and a destination node located in a second autonomous system, each of a plurality of edge nodes in the first autonomous system operates to detect and evaluate real-time route performance. The evaluation results are compared and used to select an edge node and an associated link for transporting data between the source node and the destination node. The route optimization mechanism can be adopted in an SDN-based or other virtual network autonomous system.

Data is acquired for an Identity System based on a one or more rules. The data can be from the same Identity System Component, another Identity System Component or a component external to the Identity System. The acquired data can be used to populate an Identity Profile, configure a workflow, or provide information to any other object, process, component, etc. of the Identity System. In one embodiment, the present invention combines dynamic identity value substitution and directory filter rules to enable rule based identity management. It enables dynamic population of identity data and real-time routing for identity management workflows. In other embodiments, the present invention can be applied to systems other than Identity Systems.

Routing methods are provided for IP-based Iridium like LEO polar satellite constellation network for finding a Manhattan path between a source node and a destination node. The routing methods can include identification of congested inter satellite links (ISLs). By selecting and using uncongested alternative paths, an original routing process can be converted into sub-routing processes each in a small scale of a Manhattan path region. Quality of Service (QoS) requirements such as delays and jitters can be incorporated into the routing methods, which leads to efficient routing and enhanced QoS-performance over the satellite constellation network. The disclosed routing methods can be suitable for real-time routing/rerouting applications under dynamic network conditions.

The present invention relates to a method of the 3D track simulation for a miniature aircraft under urban surroundings and belongs to the field of the 3D real-time route navigation technology for a miniature aircraft. The following modules are set in a computer: a map digitalized module, which digitalizes the 3D model of urban surroundings including threat points, buildings, the departure and target points of a miniature aircraft that is inputted by the graphical user interface (GUI), map parameters and the coordinate of a candidate navigation point composed of the 3D model of urban surroundings and the map parameters; a flight path programming module, which inputs the data from the map digitalized module, calculates the overall route index that takes the flight resource consumption rate and the survival rate into consideration, figures out the most feasible route using network optimizing algorithm under the condition of taking barriers into consideration, and then smooths the bevel at turnings and generates a realtime flight orbit; a data-collecting module, which collects the coordinate values of the aircraft positions and postures outputted by the flight path programming module and forms a posture coordinate value including orthogonal coordinate variables X, Y and Z, a pitch angle h, a yawing angle p and a roll angle r. The present invention saves flight resources and improves flights simultaneously.

A method routes an entity (200) through a predetermined area for scanning the content of the predetermined area. The method comprises the steps of: partitioning the predetermined area into cells (100); determining a starting cell for the entity (200); initiating a scan of a number of the cells from the starting cell and determining the content of each of the number of cells; and determining a total cost for the entity (200) to travel to each of the scanned cells and to perform a scan from each of the scanned cells.

A method and system for locating a network device in an emergency situation. Current physical location information is obtained for a network device every time it registers on a network or moves to a new physical location. The current physical location is sent and received in an encrypted format to and from the network device. When the network device initiates an emergency message (e.g. 911, E911, NG911, text-to-911, 112, etc.) based on an emergency event (e.g., weather, crime, fire, natural disaster, medical, terrorist, military, etc.), the emergency message includes the encrypted current physical location information for the network device. The current physical location information is decrypted and the emergency message is immediately routed in real-time to an appropriate Public Safety Answering Point (PSAP). The appropriate PSAP is immediately notified in real-time so emergency responders (e.g., police, fire, medical, etc.) can be dispatched to the current physical location of the network device.

The invention discloses a wireless routing-inspection system and a routing-inspection management method. The system comprises passive radio frequency cards arranged on fixed points, intelligent mobile terminals and a system platform, wherein each intelligent mobile terminal comprises an NFC module and a control module, each NFC module is used for collecting ID codes of the corresponding passive radio frequency card, each control module is used for receiving the collected ID codes, generating routing-inspection information and sending the routing-inspection information to the system platform, and the system platform outputs the routing-inspection information in real time. According to the wireless routing-inspection system and the routing-inspection management method, front-end field work information collection is conducted through the intelligent mobile terminals, information transmission is conducted through a GPRS/WIFI network, the system is simple in configuration, real-time routing-inspection supervision without distance limit is achieved, meanwhile, wiring is not demanded, and the disadvantages that wiring is large in work amount and high in cost are improved.

Disclosed are a method for guiding a route by using augmented reality and a mobile terminal using the same. The method for guiding a route by a mobile terminal includes: receiving route source information from a first terminal; displaying a surrounding image of the first terminal including augmented reality (AR) information by a second terminal based on the received route source information; and providing, by the second terminal, a real time route guidance to the first terminal according to a user input with respect to the displayed surrounding image.

A telecommunications call routing and billing computer system includes a telecommunications network including a junction point including a call routing switching device, and including two call routing links meeting at the junction point and in communication with each other through the call routing switching device; and a call routing simulation network including a junction point simulation computer located at the junction point and in communication with the call routing switching device and the two call routing links. A method of placing a call through such a telecommunications network includes the steps of: placing one junction point simulation computer at each telecommunications network call junction point; for each call placed with the telecommunications network, plotting a call routing vector through the simulation network with forward chaining through the junction point simulation computers; and sending routing vector information back through the simulation network with rearward chaining to direct the call along a parallel routing vector through the telecommunications network. The method preferably includes the additional steps of: monitoring buffer levels of telecommunications network junction point computers with the simulation computer at each junction point; and using the buffer level information to shunt calls from telecommunications network junction point computers having smaller buffers to those having larger buffers.

A system using scheduled times for transmission at each link guarantees bandwidth for transmitting data across a packet network. A scheduling agent determines availability of data paths across a network according to pre-selected criteria and real-time network topology information. Precise schedules are determined for transmission and reception appointments for data packets to traverse each link and switch in the network including compensation for transmission delays and switch latencies, resulting in a fixed packet flow itinerary for each connection. Itineraries are communicated to schedule-aware switches and endpoints and appointment times are reserved for transmission of the scheduled data packets. Scheduled packets arriving at each switch are forwarded according to their predetermined arrival and departure schedules, rather than their headers or contents, relieving the switches from making real-time routing decisions. Any unscheduled transmission times remain available for routing of unscheduled packets according to their IP headers. Real-time transmission of data can be guaranteed in each scheduled path, and schedule selection criteria may be adjusted according to network utilization and tolerable setup delay and end-to-end delay.

A method, system, and computer program for routing an incoming voice call in real time is presented. A call is received from a caller to an intended receiving wireless telecommunication device. In response to the call failing to connect to the intended receiving wireless telecommunication device, a short range wireless query signal is transmitted to determine if another wireless communication device is within a predefined proximity to the intended receiving wireless telecommunication device. If the intended receiving wireless telecommunication device receives a response from the other wireless telecommunication device indicating that the other wireless telecommunication device is within the predefined proximity to the intended receiving wireless telecommunication device, then the call is rerouted to the other wireless telecommunication device based on preferences internal to the intended receiving wireless device. These preferences may be stored on the intended receiving wireless device or remotely stored on the host carrier network.

The invention relates to a feedback fuzzy inference-based unmanned plane real-time route planning method. The method comprises the following steps of: 1, updating a mode of the unmanned plane route; 2, establishing a fuzzy rule base; 3, acquiring a fuzzy antecedent; 4, designing a feedback fuzzy inference method; 5, defuzzifying; 6, determining other parameters; 7, determining the next position of the unmanned plane; and 8, completing the design. Compared with the conventional unmanned plane real-time route planning method, the method ensures that the unmanned plane has primary independent studying capability by applying the feedback fuzzy inference method so as to improve the route planning effect. The real-time route planning method designed according to the method has the advantages of short route, smooth path, global astringency and easy implementation, and is a more practical and reliable unmanned plane real-time route planning method for engineering application.

A method and system for locating a network device in an emergency situation including public information. Current physical location information is obtained for a network device every time it registers on a network or moves to a new physical location. The current physical location is sent and received in an encrypted format to and from the network device. When the network device initiates an emergency message (e.g. 911, E911, NG911, text-to-911, 112, etc.) based on an emergency event (e.g., weather, crime, fire, natural disaster, medical, terrorist, military, etc.), the emergency message includes the encrypted current physical location information for the network device. The current physical location information is decrypted. Additional information is collected from one or more public location information sources for the current physical location of the network device. The emergency message with the additional information is routed in real-time to an appropriate Public Safety Answering Point (PSAP). The appropriate PSAP is immediately notified in real-time so emergency responders (e.g., police, fire, medical, etc.) can be dispatched to the current physical location of the network device.

The invention relates to an intelligent real-time matching system and method of car pooling based on the fitting degree of a driving route. The system comprises car-owner/driver-end smart phones and/or tablet navigation terminals, intelligent passenger-end terminals and a cloud computing management service platform. The method comprises that according to default position or input information, the platform plans car-owner/driver and passenger driving routes intelligently, and car-owner/driver and passenger with high fitting degree are matched intelligently for car pooling via real-time route screen display, voice broadcast, navigation induction and electronic display information interaction. The system provides digital output and printing scheme based on the cost algorithm and cost voucher of the sharing coefficient. The system and method can improve the driving safety, the matching success rate and the vehicle utilization rate, share the cost of the car of the car-owner/driver, reduces the cost of passenger, alleviates traffic jams, and purifies the atmosphere.

The invention relates to a GPS-based method and system for guiding a route in real time. The method comprises the following steps: (1) forming a team by using a navigation device or a service platform, confirming a navigation user and storing team forming information; (2) sending the driving position of the navigation user to the service platform in real time and continually generating a real-time navigation route; (3) sending a start position and a real-time updated navigation route of the navigation user to other members through the service platform, reminding the members of driving to the start position of the navigation user through the navigation device, and reminding the members of driving according to the navigation route if the members reach the start position of the navigation user or reach any one position of the navigation route; and (4) sending current positions of the other members in the driving process to the service platform, distributing the current positions to all the members of the team through the service platform so as to display the current position of each member in a navigation route map, and updating the current position of each member. The GPS-based method and the system for guiding the route in real time are capable of providing the real-time route guidance for all the members of the same team and enabling vehicles for forming the team to drive on the same route.

The invention discloses a real-time route planning method. The method comprises the following steps: defining route cost according to the route condition in a route net, generating pheromone according to the route where vehicles are positioned, reporting the pheromone to a server, calling the ant colony algorithm, calculating the concentration of the pheromone of the route at the next moment according to the pheromones of all vehicles, and finally selecting the next route for the vehicle by the server according to the traffic flow information of all routes, so as to avoid congestion, realize accurate prediction of the traffic flow condition, keep away from road congestion, ensure the traffic flow maximization of the optimal route, prevent wide fluctuation of the road condition wholly, and generate a reasonable optimized route, wherein the concentration of the pheromone is traffic flow estimated parameter; and besides, compared with the traditional route planning method, the real-time route planning method has the technical effects of simplicity, flexibility and difficulty in falling into local solution.

The invention discloses an indoor three-dimensional space real-time route navigation method and system. The method includes the steps that according to an indoor plane drawing, a three-dimensional mesh model is established; according to starting point position information, destination position information and human traffic information, closest non-jamming meshes are searched for to form a navigation route in the three-dimensional mesh data model. The system comprises a collector, a receiver and a processor, wherein the collector is used for collecting the starting point position information and the human traffic information, the receiver is used for receiving the starting point position information and the indoor human traffic information collected by the collector and further used for receiving the destination position information, and the processor is used for processing the starting point position information, destination position information and indoor human traffic information received by the receiver, so that the navigation route is obtained. The conditions of indoor environment obstacles and human traffic distribution are sufficiently considered, and workers can rapidly reach a destination in a strange environment.

Automated excavating uses automated dozers and other earthmoving equipment to move material at a worksite. When such equipment is required to avoid a temporary obstruction, traverse between work slots, or traverse between work areas, a controller uses information from real-time sensors and contour maps to determine a new route to the destination. The controller also determines in real time whether the proposed route will keep the equipment on terrain with slopes that do not exceed a slope limit set for the mobile excavation machine. If not, the controller re-routes the machine to a new path over terrain with acceptable slopes.