1190 results about "Air traffic control" patented technology

A system and method are described that converts ATC voice instructions into text, and identifies intent wording and data from the text. The intent wording and data are preferably displayed in different formats, and may be included on a map of the aircraft route. Furthermore, a read back of the instructions by the pilot to ATC may be analyzed and compared with the ATC command. If the comparison is faulty, the formats of the intent wording and / or data may be modified further to alert the pilot of the discrepancy.

A method and apparatus for providing traffic management for distributed denial of service (DDOS) traffic. Within a communications network, a DDOS detection system monitors network traffic to identify traffic that is designed to attack a particular server within the network and their entry points into the network. A traffic routing control unit is requested to deny service to the DDOS traffic. By selectively manipulating the routing information propagated to network edge routers, the traffic that is denied service is limited to mostly DDOS traffic and is routed to a cleaning center or a null address in the most effective fashion.

The invention discloses an air traffic control system for four-dimensional (4D)-trajectory-based operation. The air traffic control system comprises a data communication module, a monitoring data fusion module, an airborne terminal module and a control terminal module, wherein the monitoring data fusion module is used for fusing the monitoring data of an air traffic control radar and automatic dependent monitoring data, and providing real-time trajectory information for the control terminal module; and the control terminal module comprises a preflight conflict-free 4D trajectory generation sub-module, an in-flight short-term 4D trajectory generation sub-module, a real-time flight conflict monitoring and alarming sub-module and a flight conflict resolution 4D trajectory optimization sub-module. The invention also discloses an air traffic control method for the system. The control terminal module processes flight plan data, generates 4D trajectories, analyzes potential traffic conflicts of air traffic conditions and provides an optimal resolution scheme. By the system and the method, flight conflicts can be effectively prevented, and the safety of air traffic can be improved.

A flightpath guidance system and method is disclosed for using moving waypoints for a curved route plan such as a Bezier curve. The actual location of a vehicle and a leading target point along the path are used to provide commanded guidance of the vehicle along the path and to correct for disturbances from the intended route. Waypoints along the path may be moving with respect to the reference frame in which the vehicle is measured. Curved flightpath guidance using moving waypoints may be used for aerial rendezvous and refueling, multiple vehicle applications such as formation flying and battlefield formation grouping, and carrier landing. Further application includes air traffic control and commercial flight guidance systems.

A method of and computer software for minimizing aircraft deviations needed to comply with an en route miles-in-trail spacing requirement imposed during air traffic control operations via establishing a spacing reference geometry, predicting spatial locations of a plurality of aircraft at a predicted time of intersection of a path of a first of said plurality of aircraft with the spacing reference geometry, and determining spacing of each of the plurality of aircraft based on the predicted spatial locations.

A system and method is provided for transmitting, receiving, initiating, and displaying textual air traffic control clearance messages simultaneously with a graphic representation of an aircraft flight plan. Data representative of a current aircraft flight plan, and one or more textual clearance message signals representative of air traffic control clearance message, are each processed. One or more images representative of the current aircraft flight plan, and one or more images representative of the textual air traffic clearance messages, are each substantially simultaneously displayed in the same display area of a flight management system display.

A system and method for automating Air Traffic Control operations at or near an airport. as a complete standalone automated system replacing the need for a human controller to make aircraft movement decisions nor the need communicate with pilots, or as semi-automated, where a controller controls how the system operates. The system with related methods and computer hardware and computer software package, automatically manages manned aircraft, remote controlled UAV and airborne-able vehicles traffic at or near an airport, eliminates ATC-induced and reduce pilot-induced runway incursions and excursions, processes control messages related to aircraft or Pilots, communicates with Pilot over ATC radio frequency, receives aircraft positions, communicates control messages with the aircraft avionics, provides pilots a dynamic map with continuous display of nearby traffic operations, shows clearance and information related to runway operations, warns pilot of runway conditions and turbulence from other operations, warns when landing gear is not locked, displays the pilot emergency exits during takeoff roll, shows the pilot when and where to exit from the runway, shows the pilot where and when to cross a junction, calculates and displays pilot optimal speed and timing on taxiways and junctions for saving fuel, calculates congestions, calculates best taxiway routes, calculates when aircraft can cross a runway, provides directives and information to pilot over CPDLC display or dynamic map for airside operations, alerts and triggers breaks of the aircraft on wrong path or when hold-short bar is breached, displays emergency personnel with routing map and final aircraft resting position for emergency operations, takes over an aircraft operation when aircraft is hijacked or deviates from the flight plan, provide standalone or manned Remote Tower functionality, Records and retains all information related to airport airside operations including aircraft positions and conditions from sensors and reports for runways, junctions and taxiways, Records and retains aircraft data and cockpit voice to ground-based servers to eliminate black-box requirements, calculate future weather and airport capacity from aircraft at or nearby airport, coordinates handoff operations with other ATC positions, interfaces with ACDM systems, airport operations center, flow center and network operations center.

A communication system includes overload control at a platform level. A translator module receives messages from any number of distinct networks and provides priority information regarding each of those messages to an overload control module that uses the translated priority information and arrival rate information to provide needed message traffic control. The disclosed arrangement provides a universally applicable overload control approach that reduces duplicated resources associated with individual overload control algorithms for each network message processor.

A method and apparatus for positioning labels on a graphical display, which, in an illustrative embodiment, can include labels for aircraft icons in an air traffic control system's computer graphics display. The present invention advantageously identifies clusters of overlapping labels and objects, and calculates non-overlapping label positions on a cluster by cluster basis. In another aspect of the present invention, the movement of labels is accomplished in a smooth, incremental fashion so that cognitive distraction to the user of the graphical display terminal is kept to a minimum.

The invention relates to the technical field of traffic control and artificial intelligence and provides a traffic signal self-adaptive control method based on deep reinforcement learning. The method includes the following steps that 1, a traffic signal control agent, a state space S, a motion space A and a return function r are defined; 2, a deep neutral network is pre-trained; 3, the neutral network is trained through a deep reinforcement learning method; 4, traffic signal control is carried out according to the trained deep neutral network. By preprocessing traffic data acquired by magnetic induction, video, an RFID, vehicle internet and the like, low-layer expression of the traffic state containing vehicle position information is obtained; then the traffic state is perceived through a multilayer perceptron of deep learning, and high-layer abstract features of the current traffic state are obtained; on the basis, a proper timing plan is selected according to the high-layer abstract features of the current traffic state through the decision making capacity of reinforcement learning, self-adaptive control of traffic signals is achieved, the vehicle travel time is shortened accordingly, and safe, smooth, orderly and efficient operation of traffic is guaranteed.

An example traffic control system includes a vehicle unit associated with a vehicle on a highway, one or more roadside units proximate the highway, and a traffic controller. The vehicle unit transmits a vehicle speed to the roadside unit, when in wireless communication range. The roadside unit transmits the vehicle speed to the traffic controller. The traffic controller receives vehicle speed data from a plurality of vehicles, and determines a suggested speed for each vehicle. The suggested speed may be correlated with an average speed of vehicles on a portion of the highway, for example the same highway portion on which vehicle is located, or a highway portion towards which the vehicle is heading.

A method for predicting the trajectory of an aircraft is disclosed. It yields the arrival / departure times for a plurality of aircraft with respect to a specified system resource and is based upon specified data and other operational factors pertaining to the aircraft and system resource. This process comprises the steps of (a) collecting and storing the specified data and operational factors, (b) processing, at an initial instant, the specified data that is applicable at that instant to the aircraft so as to predict an initial trajectory encompassing arrival / departure times for each aircraft, (c) upgrading these initial trajectory predictions for effects of (1) environmental factors (weather, turbulence), (2) actions of the Air traffic Control system (e.g., stacking incoming aircraft when runway demand is greater than availability), and (3) secondary assets (e.g., crew availability / legality, gate availability, maintenance requirements), (d) communicating these trajectory predictions to interested parties and (e) continuously monitoring all trajectories, and, as necessary, updating the predictions.

A novel and useful apparatus for and method of handling traffic congestion during power save mode in client / server systems such as wireless local area networks (WLANs). A reduction in response time is achieved by minimizing communications between the host and the MAC processing entities in client devices. The host sends shortened descriptors to the MAC rather than complete frames. Only a limited number of frames for each client queue are stored on the MAC. A transfer bitmap is used to track the frames to be transferred from the host to the MAC. Transmitter pre-processing is performed on the frames pulled from the host. A transmit bitmap is used to track frames that have been processed and awaiting transmission to a client. Frames that are ready are then sent out from queues for clients that are active and have an ongoing service period.

Method and system for analyzing and processing information on one or more aircraft flight paths, using a four-dimensional coordinate system including three Cartesian or equivalent coordinates (x, y, z) and a fourth coordinate δ that corresponds to a distance estimated along a reference flight path to a nearest reference path location corresponding to a present location of the aircraft. Use of the coordinate δ, rather than elapsed time t, avoids coupling of along-track error into aircraft altitude and reduces effects of errors on an aircraft landing site. Along-track, cross-track and / or altitude errors are estimated and compared with a permitted error bounding space surrounding the reference flight path.

According to the present invention, traffic control in an IP based network is provided. For this purpose, traffic situation in the network is measured, and the traffic flow is controlled on the basis of the measured traffic situation. Moreover, an operator may define rules for different measured situations, and the traffic flow is controlled on the basis of these rules.

A method for controlling traffic flow at a network node including updating a plurality of credit buckets over multiple time intervals and determining an adjusted credit value for a credit bucket when the credit bucket is accessed to forward a packet, the adjusted credit value being determined as a function of a number of the time intervals that have elapsed since the credit bucket was last updated, the credit bucket being one of the plurality of credit buckets.

A method and apparatus for providing traffic management for distributed denial of service (DDOS) traffic. Within a communications network, a DDOS detection system monitors network traffic to identify traffic that is designed to attack a particular server within the network and their entry points into the network. A traffic routing control unit is requested to deny service to the DDOS traffic. By selectively manipulating the routing information propagated to network edge routers, the traffic that is denied service is limited to mostly DDOS traffic and is routed to a cleaning center or a null address in the most effective fashion.

Method and apparatus for monitoring data traffic through a cable data network in order to guarantee a minimum and maximum bandwidth and burst length. Traffic statistics are kept as credits that are only updated as needed. Each cable modem in the network is assigned a limit on the maximum amount of traffic that it may transmit and receive depending on the service level that the subscriber has purchased. When that limit is exceeded, traffic for that modem will no longer allowed to pass through the system.

A weather monitoring and prediction system that uses a fleet of aircraft to obtain data. Each aircraft has a local air data system that facilitates the measurement, recordation, and transmittal of local atmospheric data such as barometric pressure, and the corresponding temporal, positional, and altitudinal data. The data is electronically transmitted from each aircraft to a ground based processing system where it is stored. The data may then be transmitted to subscribing users such as aircraft, other weather data systems or to air traffic control centers in either a compiled form or in a raw form. Another embodiment also provides for measuring barometric pressure as a function of altitude at an in-flight aircraft.

The invention discloses a multi-airport collaborative delivery system flight sorting and decision making method. The method includes three processes of 1) preprocessing of a civil aviation flight schedule, 2) building of a multi-airport collaborative delivery decision-making algorithm model, and 3) implementation of a multi-airport collaborative delivery decision-making algorithm. By the method, a unified delivery sequence can be provided to air traffic control units, airports and airlines participating in delivery so as to realize utilization maximization of airspace resources, improve air traffic control operation efficiency and guarantee air traffic safety.

Provided are methods and systems for the automatic calculation and presentation of data on a display device alerting a pilot that a change in flight plan is desirable, possible and administratively compliant under air traffic control protocol. The methods and systems may automatically request the flight clearance over a data link or the pilot may override the data link.

A dialog processing method and apparatus for uninhabited air vehicles is described. The apparatus contains a recognition unit for recognizing incoming data, an interpretation unit for interpreting the data according to a grammar and a response unit for generating an appropriate response to the incoming data. The method may utilize natural language processes and may reduce to a finite state machine. The incoming data is combined with uninhabited air vehicle state information to increase the accuracy of this interpretation. Additionally, the dialog states may be limited to customary air traffic control dialogs.

The invention provides a four-dimensional flight track dynamic prediction method based on ADS-B information updating. By communicating with networks among ADS-B receivers, a ADS-B data decoding module is adopted to obtain real-time velocity information, height information, longitude information and latitude information of a flight, and consistency check is conducted on a predicted flight track and the real-time velocity, height, longitude and latitude of the flight, so that the dynamic, online and real-time flight track prediction capability is achieved. The method can provide important technical support for developing the automation and intellectualization of air traffic control and achieving the flight-track-based operation.

The dynamic routing of a communication network should adapt to the traffic load existing in the network such that the network throughput is optimized. The inventive routing method solves this problem by a dynamic path fan, with alternate paths, upon whose only specifically selected alternate paths are incorporated.

An area traffic management system operated by the display panel induction and the area control, relates to a information processing technique, which main comprises an area traffic information collector, an area traffic manager, an area traffic induction decision device, an area traffic control decision device, an area traffic information transmission system, a variable information display panel and a signal controlling machine. The system obtains the area traffic information in good time, performs the automatic analysis process on the collected traffic information, performs the traffic information induction hint to the traffic participants, meanwhile performs the traffic control, effectively solves the area traffic congestion, to make the urban traffic smooth.

The invention discloses an optimal control method for intersection group traffic flow, which resolves the defect that the smallest unit of current urban traffic control is a single intersection, which cannot satisfy the needs of actual traffic control, can realize the optimization of local traffic flow, and provides helps for micro control of traffic flow. The steps of the method are:(1) real time acquiring actual traffic flow of ''intersection group'' on roads through a ground induction coil which has been paved in a city; (2) constructing an optimal control model with a smart approach and inferring and optimizing the parameters of a controller according to real-time traffic information;(3) the controller carrying out optimal control for traffic flow according to the control model.

A surveillance system for an aircraft includes a first antenna comprising a four radiating element antenna. The first antenna is configured for electrical coupling to a first air traffic control transponder and a first traffic alert and collision avoidance system, and a second antenna comprises a single element antenna configured for electrical coupling to a second air traffic control transponder. The surveillance system also comprises a second antenna comprising a single radiating element antenna configured for electrical coupling to a second air traffic control transponder. The surveillance system also comprises a first mounting interface configured for coupling the first antenna to the aircraft. The surveillance system also comprises a second mounting interface configured for coupling a second antenna to the aircraft. The mounting interface of the first antenna has a size and a shape corresponding to a size and shape of the mounting interface of the second antenna.

The invention discloses an optimizing control method for a single intersection signal in a saturated traffic state, which belongs to the field of traffic detection and traffic control of urban roads. The method of the invention comprises the following steps of: detecting and recognizing intersection upstream and downstream vehicle queue setting areas and intersection central area traffic events by high-definition video and carrying out analysis processing on detected traffic data; and by a way based on the combination of the setting areas and rules, carrying out optimizing control on the traffic of the single intersection in the saturated traffic state in a plurality of aspects of intersection central area event judgment, phase downstream traffic flow queue detection and corresponding control processing, phase upstream traffic flow queue detection and corresponding control processing, and the like so that the intersection traffic in the saturated traffic state is run in order, and the traffic capacity of the intersection is improved. The method of the invention can further prevent traffic jam of the intersection in the saturated traffic state, eliminate the traffic jam as soon as possible and avoid the generation of a deadlock phenomenon of the intersection traffic, thereby remitting the problem of urban traffic jam and improving the running efficiency of urban traffic.