480 results about "Air navigation" patented technology

A method for navigation includes storing map data on a server, the map data including vector information delineating roads in a map. A portion of the vector information corresponding to an area in which a user of a mobile client device is traveling is downloaded from the server to the client device. Approximate position coordinates of the user are found using a location providing device associated with the client device and are corrected in the client device, using the downloaded vector information, so as to determine a location of the user on one of the roads in the map. A navigation aid is provided to the user of the client device based on the determined location.

A vehicle-based navigation system is described including a position locator that establishes the geographic position of the vehicle and a map database located external to and remote from the vehicle. The system determines at least one of a vehicle parameter and a personal parameter, and transfers data from the remote map database to the vehicle and displays the data in the vehicle at a resolution that is a function of at least one of a vehicle parameter and a personal parameter.

In an Interactive Real-Time Distributed Navigation system a method and system is disclosed for implementing a warm start/cold start option. Through selection of the warm start option, an interactive session for providing navigational directions to a user is more quickly established because a user's position is assumed not to be ambiguous. A method of the invention verifies this assumption. Through selection of the cold start option, the method of the invention seeks to remove ambiguity in a user's position before providing navigational directions. If, however, a user's position is not ambiguous, the method of the invention reverts to a warm start condition to immediately transmit navigational directions to the user.

A system and method in which a user and a mobile robot cooperate to create a plan for use by the robot in navigating a space. The robot may include a tracking unit that detects the distance traveled and direction from a starting or home location and orientation. The robot also includes a navigation module that controls the movement of the robot based on a navigation plan received from a robot control utility residing at a workstation operated by the user. The robot further includes a position error correction engine that is configured to correct for position errors that may occur as the robot traverses the space. The position error correction engine receives data from one or more robot sensors that detect structures disposed below the surface over which the robot travels. As the robot encounters obstacles in the space, it enters them on the floor plan. The user then reviews the information added by the robot to the floor plan and accepts, rejects or modifies that information in order to create the navigation plan.

A vehicle navigation system is provided with a destination input section, a travel route information section, a historical data input section and an expected travel time reporting section. The travel destination input section is provided for entering a destination point. The travel route information section provides at least one potential travel route to the destination point. The historical data input section provides historical time information based on a plurality of actual motorist travel times to navigate various travel routes. The expected travel time reporting section reports to a user an expected travel times based on the historical time information for a potential travel route.

Apparatuses and methods for managing route navigation via mobile devices. A route is calculated between a starting point and a destination point. The route is divided into multiple segments based on the complexity of the calculated route, and navigation features are controlled as a function of the segment that corresponds to the user's current location. The user may opt to identify one or more segments, or one or more route portions independent of whether or not segmentation has occurred, in order to specify a portion(s) of the route where navigation support is not needed.

The invention relates to a navigating and stabilized sighting method of a navigation/stabilized sight all-in-one system, belonging to the inertial guidance field. The navigating method realizes stance and positioning on a load by an inertial measuring unit which is arranged on an electro-optical stabilized sighting platform. The method comprises the steps as follows: collecting the signal of the inertial measuring unit; fast and accurately initial aligning below the stabilized sighting platform; an inertial navigation algorithm based on vehicle-bone stabilized sighting platform; resolving heading attitude and analyzing the error thereof; analyzing the error of an inertial guidance system and an inertial part, modeling and compensating; and inertial guidance/milemeter/GPS multi-information fault-tolerance combined navigation. The navigation method overcomes the defects in the prior art that stabilized sighting and the navigation system can not work simultaneously and the all-in-one system can not provide full navigation information, can provide real-time, accurate and complete navigation heading attitude information and navigation positioning information for carriers (like a chariot), and can improve the battlefield viability and the comprehensive hosting ability.

The invention discloses an indoor movable robot real-time navigation method based on visual information correction, comprising the following steps of: (1) initializing a robot navigation system, and starting a mile meter and a visual sensor; (2) obtaining the current position of a robot by the mile meter and the visual sensor and forming a kalman filter so as to obtain a mile meter filtration estimation value and a visual sensor filtration estimation value; (3) fusing the mile meter filtration estimation value and the visual sensor filtration estimation value; and (4) resetting parameters. The invention sufficiently utilizes the respective advantages of visual information and mile meter information and combines the precision of the visual information and the real-time property of the mile meter information; the invention utilizes the mile meter self information to carry out the recurrence computation to obtain navigation data at most of the time, thereby ensuring the real-time requirement of the navigation system; in addition, the invention also utilizes the visual information to correct the accumulated errors generated in the dead reckoning of the mile meter, thereby greatly enhancing the accuracy of the navigation system.

The invention discloses an indoor live-action navigation method and system. The method comprises the steps that a mobile terminal collects live-action images of the current position, the live-action images are matched with a first live-action image stored in an indoor live-action image database, and an initial coordinate of the current position is obtained; the position of a pedestrian is positioned and tracked in real time through a multi-source sensor fused position algorithm, and when the mobile terminal detects that the position of a user changes, a real-time position result and a walking trajectory are output; a second live-action image, closest to the indoor position result, in the indoor live-action image database is obtained according to the real-time indoor position result; the mobile terminal obtains a starting point and an ending point which are input by the user in the navigation process, a forward direction is obtained, a direction guided arrow is added on the second live-action image, and live-action navigation is conducted. By means of the indoor live-action navigation method and system, according to the position where the pedestrian is located, the live-action navigation images can be pushed automatically, the best navigation image visual angle can be judged automatically, and route guidance information such as the arrow is overlapped on the navigation images.

The invention relates to a service robot autonomous navigation method based on a deformable topological map in the technical field of robot navigation, which comprises the following steps: collecting the geography and physiognomy condition of an indoor and outdoor environment in which a robot is located in real time by a SLAM technology; extracting environmental characteristics; creating a topological map of collected information and establishing the needed different sizes of a topological point according to the posture change of the service robot in the foundation; taking the sizes as input amount to reconstruct the topological map; and generating a topological point self-adapting topological map conforming to the posture change of the mobile robot.

The invention discloses an integrated navigation system applied to a pilotless aircraft, which adopts a sensor comprising an inertial sensor, a radio altimeter, a communication module, a camera and the like, wherein the inertial sensor is used for acquiring motion acceleration and angular velocity of a carrier, and providing the motion acceleration and the angular velocity for an inertial navigation system and a vision navigation system in the unknown environment for setting up a system equation, thus further providing the current location information and matched trigger signals for scene matching navigation. The method integrates four combination ways which are inertial navigation, cellular wireless location navigation, vision navigation in the unknown environment and the scene matching navigation, and the four combination ways form each subsystem of the integrated navigation system and can be independently used for estimating the state of the aircraft; then, fault diagnosis and fusion estimation are carried out on the data output by the subsystems by a main filter, so that the accurate estimation of the state of the aircraft is obtained.

The invention discloses a robot navigation method based on color coding identifiers, which comprises the following steps of: extracting a navigation identification line according to the acquired image data, and determining the path direction; identifying a breakpoint mark in front of the color coding identifier, and preparing to regulate the movement trail for the color coding identifier; and identifying a color coding block around a corner or other positions, and executing turning or other command. The invention further discloses a robot navigation system based on the color coding identifiers. The robot navigation system has a simple principle, strong expandability and good visual perception, and can complete the positioning and navigating tasks of an indoor service robot; the robot navigation system can be combined with other navigation systems, so the stability and practicability of the navigation system are improved; and the problems of weaker applicability to complicated environments, error navigation accumulation, large operand, mutual interfered sensors and the like in the current robot navigation field can be effectively solved.

The invention discloses an AGV laser tape hybrid navigation system. The system comprises an AGV upper control system and an AGV dolly. The AGV upper control system adopts a mode of combining tape navigation and laser navigation to realize system navigation. A specific structure of the system comprises a laser navigation module, a laser tape hybrid accuracy positioning material module and an automatic charging module. By using the system of the invention, the material can be flexibly transported in a factory; simultaneously, advantages of a flexible laser navigation path and accurate tape navigation positioning are possessed; and a requirement to complexities of the structure, a navigation control algorithm and a task scheduling algorithm is reduced. Cost is low, control is stable and reliable, the structure is simple, a full limitation path requirement is not needed, a navigation path can be conveniently modified and a loading and unloading area and a power supply area possess high positioning precision.

A navigation system and method for determining a location of a navigator in a navigation environment using coded markers located within the navigation environment. In one example, the navigation system includes a camera apparatus configured to obtain an image of a scene containing images of at least one coded marker in a navigation environment, video analytics configured to read the at least one coded marker, and a processor coupled to the video analytics and configured to determine a position fix of a navigator based on a known location of the at least one coded marker.

The utility model discloses a robot navigation system and a navigation method. The robot navigation system comprises a navigation network which is formed by a plurality of wireless access points, a wireless communication module which is used for transferring data and collecting the intensity sequence communicated with the wireless access points, a sensor which is used for checking that the robot meets barriers or not, and a position server which is used for storing the referenced intensity sequence and running the intricate position arithmetic, and is characterized in that the position server is connected with the wireless communication module and interacts with the navigation network. The navigation method is characterized in that the robot judges the next target position until reaches the destination by comparing the intensity sequence collected in real time with stored reference intensity sequence of the position points; when the robot meets barriers, the robot records and demarcates the intensity sequence of the position in order to avoid entering the position again, therefore achieving intellectual learning; the robot can upload the correlative information to the position server and achieve the assistant navigation position by the help of the database of the position server and the position arithmetic. The utility model is not likely to be affected by the environment and also has the advantages of low cost of maintenance.

The present invention relates to a system and method for automatically detecting and mapping points-of-interest (POI) such as parking spaces, and accordingly locating and directing drivers to available parking spaces as close as possible to desired POI and locations. The system is completely autonomous and independent and it uses a Parking Space Detection module that employs machine learning and computer vision techniques for learning the surface of the parking area, the unoccupied life span of a parking space, the occupancy life span of the parking space, detection of suspicious vehicles in terms of parking searcher to independently predict in which available parking space they may parked, and accordingly to navigate in real-time a user to a parking space that has the highest probability to remain free on arrival of that user.

A system and method of providing aerial navigation. Techniques are described for receiving global positioning system data, receiving local positioning system data such as instrument landing system data, generating a virtual target flight path using the global positioning system data and the local positioning system data, and presenting a virtual target flight path indicator corresponding to the virtual target flight path. In one implementation, the system includes a user interface, a global positioning component, a local positioning component, and a processing system.

The invention discloses a laser navigation system applicable to an intelligent inspection robot of a transformer substation, overcoming the problem in the prior art that navigation control positioning precision of the robot still needs to be improved. The laser navigation system comprises the following steps: step 1, configuring the robot; step 2, establishing an environment map; step 3, carrying out a laser navigation positioning test; and step 4, executing tasks at stopping points. In the step 3, a move_base packet in the laser navigation positioning test is used for doing a path plan on the map by utilizing robot position information and real-time obstacle information sensed by a laser sensor, and issuing planning speed information to a movement controller on the bottom layer, so that the robot safely arrives at an appointed target position. The invention provides the laser navigation type intelligent inspection robot of the transformer substation, which is not interfered by a strong electromagnetic field in a transformer substation environment, and is reliable to operate, accurate in navigation positioning, easy to realize and low in development cost.

The invention relates to a navigation technology. Aiming at the defect of over high cost in the existing motorcade navigation proposal, the technology provides a motorcade navigation system, a piloting navigation device, an accessory navigation device and a navigation method thereof. the motorcade navigation system comprises a piloting navigation device for receiving the information of a starting place and a destination and generating and sending out a navigation route; receiving satellite navigation signals, calculating and sending out the current position coordinates; the accessory navigation device is used for receiving and displaying the navigation route sent by the piloting navigation device; receiving the current position coordinates sent by the piloting navigation device, thus displaying the current position of the piloting navigation device. The invention further provides the piloting navigation device, the accessory navigation device and the navigation method thereof. The piloting navigation device sends the optimal route to the accessory navigation device, thus leading the accessory navigation device to be only in need of being configured with mobile communication function and displaying function without configuring the navigation device with full function for each automobile in a motorcade, thus reducing the navigation cost of the whole motorcade.

The invention discloses a real-time navigation system and a real-time navigation method for an underwater structure detection robot. The navigation system comprises a magnetic compass, a gyroscope, an accelerometer, a depth meter and a navigation microprocessor, wherein the magnetic compass, the gyroscope, the accelerometer and the depth meter are used for respectively collecting magnetic field intensity, an angular speed, a linear speed and submerged depth data and transmitting the magnetic field intensity, the angular speed, the linear speed and the submerged depth data to the navigation microprocessor; the navigation microprocessor is used for calculating attitude and position of the underwater robot according to the collected data. The navigation method comprises an attitude algorithm, a speed algorithm and a depth algorithm; according to the attitude algorithm, a complementary filtering method, a quaternion gradient descent method and a Kalman algorithm are combined for obtaining an attitude matrix and an attitude angle; the speed algorithm is used for calculating the speed and the position of the robot by using a three-order upwind scheme with rotary compensation; the depth algorithm is used for processing the data of the depth meter by using a moving average filter algorithm so as to obtain the submerged depth. By virtue of the real-time navigation system for the underwater structure detection robot and the method thereof, the navigation cost is reduced and a relatively good navigation precision is achieved.