182 results about "Navigational database" patented technology

The invention discloses a binocular vision-based robot target identifying and gripping system and method. The binocular vision-based robot target identifying and gripping system comprises a binocular image acquisition module, an RFID (Radio Frequency Identification) transceiving module, a chassis movement module, an obstacle avoidance module and a mechanical arm control module. The binocular vision-based robot target identifying and gripping method comprises the following steps of: (1) calibration of a binocular camera; (2) erection and conversion of a coordinate system; (3) target identification and location; (4) autonomous navigation and obstacle avoidance; and (5) control over mechanical arms for gripping a target object. According to the invention, a robot can be intelligently interactive with the environment, and the intelligent gripping capability of the robot is enhanced. According to the binocular vision-based robot target identifying and gripping system and method, except for identification and location to the target object, a navigation database is also established, and the robot can automatically reach an area where the object is located after the target object is positioned; and the binocular vision-based robot target identifying and gripping system and method ensures that a service mode of the robot is more intelligentized and humanized by controlling the human-simulated mechanical arms and adopting a specific personified path gripping manner.

The invention discloses a flight program design system for performance-based navigation (PBN), a verification platform and a verification method, belonging to the field of aerial navigation. The program design system is based on an AIXM (Aeronautical Information Exchange Model) core database; a program protection region can be automatically drawn, an obstacle is evaluated, and a chart is generated; and thus, functions such as seamless connection and the like of the PBN program protection region and the conventional flight program protection region can be realized. According to the system, the chart can be automatically generated according to data finished by the flight program design, customized edition and modification can also be realized according to requirement, and program design and publishing are finished at one time. By using the flight program design system, the verification platform and the verification method, the PBN program can be directly added in a navigation database of the verification platform, and the navigation database can be edited and modified in a verification process. In addition, a visual scene database is increased; the defects and the disadvantages of the program design can be directly discovered according to geomorphology in a visual scene when the PBN flight program is verified; and the program is further modified perfectly.

The present invention relates to the definition, in a flight plan, of the horizontal profile of an air route with vertical flight and speed profile prescribed on departure and/or on arrival, by a stringing together of check-points and/or turn points associated with local flight constraints and called “D-Fix” because they are not listed in a published navigation database like those called “Waypoints”. It consists in charting, on curvilinear distance maps, a direct curvilinear path joining the departure point to the destination point of the air route while complying with vertical flight and speed profiles prescribed on departure and/or on arrival and while guaranteeing a circumnavigation of the surrounding reliefs and compliance with regulated overfly zones, then in approximating the series of points of the direct curvilinear path by a sequence of straight segments complying with an arbitrary maximum deviation threshold relative to the points of the series and an arbitrary minimum lateral deviation threshold relative to the set of obstacles to be circumnavigated and in adopting as “D-Fix” points the points of the intermediate intersections of the rectilinear segments.

Systems, devices, features, and methods for constructing a graphic model of a geographic object, such as a road sign or features thereof, from an image, such as, for example, to develop a navigation database are disclosed. For example, one method comprises receiving a plurality of images of regions, such as of roads or paths. An image of the plurality of images is identified. A process to determine scale-invariant components of a geographic object in the identified image may be performed. Other processes, such as generating a dictionary to facilitate optical character recognition may be performed. A graphic model of the geographic object is generated based on the scale-invariant components and/or the optical character recognition. The generated graphic model may be associated with a navigation or map database.

Systems, devices, features, and methods for determining geographic features corresponding to a travel path to develop a map database, such as a navigation database, are disclosed. For example, one method comprises emitting light from a light source, such as a LIDAR device, while on the travel path. Returning light is received based on the emitted light. The returning light is used to generate data points representing an area about the travel path. The data points are filtered as a function of a return intensity value to identify a feature associated with the travel path, in which the feature is treated with a retroreflective substance.

A vehicle navigation system may include an antenna, e.g. a GPS antenna, an output for providing guide advice to the vehicle driver and including a display, a memory encompassing a navigation database with electronic maps stored within, and an electronic controller. The system is capable of detecting the global position of the vehicle on the basis of the electromagnetic waves received by the antenna, associating the global position to the exact road position of the vehicle by comparison with the electronic maps and providing pictorial guide advice to the vehicle driver according to the road position via the display. The system may include a digital camera installed on the vehicle and able to record digital pictures of the outside and to provide the digital pictures to the electronic controller. The pictures are displayed via the display, and pictorial guide advice, e.g. directional arrows, are overprinted to the displayed pictures.

An aircraft flight risk measuring system for analyzing risks related to a flight of an aircraft. A user of the risk measuring system can be a flight dispatcher, an owner/operator, a pilot and other interested parties. The risk measuring system includes a risk management server system computer. The system computer has a two-way communication with a user computer operated by the user. An accident history database is connected to the system computer for providing accident reports related to the aircraft and other accident data. Also, a navigation database is connected to said system computer for providing airspace data, radio navigation aids, preferred routes, elevation data, geographic data and information related to a destination airport. Further, a non-static database is connected to the system computer for providing live information related to weather forecasts and data related to the aircraft's flight. As an option, a two-way communication between said system computer and an aircraft computer on board the aircraft can be included. The two-way communication used for receiving and transmitting encoded data from the aircraft when the flight is in progress.

Methods and apparatus are provided for real-time projection and rendering of one or more geospatially organized navigation databases. A system stores, processes, and displays a navigation database (including, e.g., terrain, navigation aids, obstructions, political boundaries, and the like) and avionics data to accomplish real-time display while maintaining correct projections of the data from latitude and longitude coordinates to Cartesian (nautical-mile) coordinates. Flight-plans may be graphically modified via an intuitive user interface.

The invention relates to a device for assisting in the choice of a diversion airport for an aircraft piloted by a crew (200), said aircraft comprising a flight management system including location means (207) calculating the position of the aircraft, said device comprising a navigation database (202) and a performance database (203) of the aircraft, said device being characterized in that it comprises:

• • a company database (201) comprising airports and characteristics of said airports,

means (205) of calculating a list of airports, called candidate airports, from the airports in the company database, from the navigation database and from the selected characteristics by the crew,

• • means (204) for calculating remaining flight time and fuel consumption predictions for each of the candidate airports from the position of the aircraft, from weather conditions and from the performance database,

an interface giving the favoured airports for diversion according to pre-established criteria or determined in real time using the interface.

Systems, devices, features, and methods for determining a geometric parameter from an image are disclosed. For example, one method for determining the geometric parameter is used to develop a navigation database. The method comprises determining calibration values corresponding to a camera mounted on a vehicle or a pedestrian. A plurality of images of geographic features are captured by the camera. A single image from the plurality of images is identified or selected. A geometric parameter of a region in the single image is determined based on the determined calibration values. For example, the geometric parameter is a real-world distance, such as a real-world length or width.

A system for providing taxi navigation information to a pilot of an aircraft is comprised of a navigation system; a taxi navigation module consisting of, in part, a processor and database; and an indicating system consisting of, in part, a tactical display unit system (e.g., a primary flight director (“PFD”), and head-up display (“HUD”) of an aircraft. A navigation system may provide aircraft position data of the aircraft while it is on the ground. A processor receives the aircraft position data, retrieves taxi navigation symbology based upon the aircraft position data from a taxi navigation database, and provides this data to the indicating system. The indicating system generates the display of taxi navigation information on a display unit which, in turn, provides the pilot with an egocentric view of airport signage using colored aviation signage symbology.

A portable media playing device incorporating a database-driven menu structure that comprises a display mechanism, navigation database, including a navigation record with a navigation description, an action database, including an action record with an action description, wherein the action database is customizable in accordance with a field of the navigation record. A display driver displays the navigation description. When the navigation description is selected, the display driver displays the action description. When the action description is selected, a digital synchronization system generates an extra action request (EAR) record that includes an action identifier and action data for storage in an EAR database. When the device is synchronized with a computer, a synchronization manager accesses the EAR database and updates the action database with any new action records.

An improved method is provided for identifying road sections in a navigation database. The method includes: receiving a database update identifying at least one road intersection; constructing a logical representation of the road topology surrounding the at least one road intersection; and identifying the at least one road intersection in the navigation database by comparing the logical representation to a logical representation of the navigation database.

A method for discriminating or prompting on legal parking area by GPS system on vehicle includes prestoring relevant area information of legal parking area, starting up decision and prompting function of legal parking area to obtain current position information of vehicle and carrying out judgment operation for judging whether current parking position is at legal larking area as stored in navigation databank or not then carrying out prompt operation for knowing that current parking area is legal position or illegal position.

The invention relates to an X-ray pulsar navigation ground test system, which comprises a signal control sub-system, an orbital data generation sub-system, a navigation database sub-system, a pulse contour extraction sub-system, a navigation parameter estimation sub-system, a large-scale dynamic effect sub-system, an X-ray pulsar signal simulation sub-system, a detector sub-system and a navigation demonstration sub-system, wherein the orbital data generation sub-system comprises a Walker constellation satellite orbit module, a lunar exploration module and a Mars exploration orbit module; the large-scale dynamic effect sub-system comprises a large-scale space effect simulation module and an in-orbit dynamic effect simulation module; and the X-ray pulsar signal simulation sub-system comprises an X-ray generator and a vacuum channel. By realistically simulating the radiation characteristics of pulsar X-ray photon signals in a large-scale dynamic environment, the performance of a pulsar navigation probe is subjected to a closed loop test, the pulsar navigation algorithm is examined, and the feasibility of the scheme design of the pulsar navigation system is verified.

Various embodiments provide techniques for performing an operation that includes receiving a request specifying one or more geospatial commands. The operation further includes generating a navigation query based on the one or more geospatial commands and using a user-specific geospatial command model generated based on collected user behavior and feedback. The operation also includes executing the navigation query against a navigation database to determine route and destination information.

A navigation system including a navigation database provides efficient and accurate database updates. The system receives a modified version of the navigation database. The system identifies data blocks of the modified version that differ from the corresponding data blocks of the navigation database. The system generates an update based on the identified differences. The system updates the navigation database using the generated update.

The invention discloses a method for identifying a triangular star map, and belongs to the field of navigation, guidance and control of spacecraft. The method comprises the following steps of: 1, establishing a navigation database, namely constructing characteristic triangles, calculating a plane unit normal vector, solving an optimal projection principal axis and projection point values, and normalizing magnitude; 2, forming an observation triangle; and 3, searching a characteristic triangle which is most matched with the observation triangle from the navigation database, sequentially retrieving a projection point value block index stable, a characteristic triangle table and a magnitude normalizing table in a hierarchical retrieval mode, and finishing the matching of the observation triangle. The method for identifying the triangular star map solves the problems of low noise robustness, more redundant matching and low identification rate of the conventional method for identifying the triangular star map, obviously improves the search speed of the navigation database, reduces redundant matching, improves the identification rate, and has higher noise robustness.