278 results about "Navigation aid" patented technology

The invention relates to the technical field of unmanned aerial vehicle clusters, in particular to an unmanned aerial vehicle cluster formation method. Comprising the following steps: system initialization and configuration, cluster communication and data exchange, collaborative algorithm calculation and control input, positioning and navigation assistance, global and dynamic task planning setting, energy management and optimization strategy implementation, and biological enlightenment formation control application. Compared with a traditional formation operation method, the unmanned aerial vehicle cluster formation method is higher in autonomy, and the unmanned aerial vehicle cluster formation is more accurate through an advanced autonomous flight control system and a sensor technology. Information sharing and cooperative actions among the unmanned aerial vehicles in the cluster formation are realized through an efficient communication technology, and even if part of the unmanned aerial vehicles fail, other unmanned aerial vehicles can still continue to execute tasks.

The invention provides an airway navigation system and method based on a bronchoscope view, and the system comprises a reconstruction module which obtains a bronchial tree 3D mask through CT image reconstruction; the model building module is used for obtaining a three-dimensional virtual map model comprising a 3D bronchial tree according to the 3D mask of the bronchial tree; the path extraction module is used for extracting all possible navigation paths from the bronchus entrance to the target part based on the 3D bronchus tree; the path selection module is used for selecting one navigation path as a target navigation path; the navigation module is used for guiding the bronchoscope to move along a target navigation path in the three-dimensional virtual map model based on a visual guide path; and the navigation auxiliary module maps the identified real-time part corresponding to the bronchoscope to the 3D bronchial tree for matching so as to realize dynamic synchronization of the real-time part corresponding to the bronchoscope and the target navigation path. According to the invention, reliable and convenient navigation in a complex airway network can be realized, misoperation is effectively avoided, time is saved, and operation difficulty is reduced.

The invention provides a parallel attention convergence high-precision map construction method for assisting visually impaired people. The method comprises the following steps: firstly, collecting multi-view and multi-scale data of a traffic environment through multi-camera or multi-sensor equipment; a multi-scale feature fusion network EDS is utilized to integrate data features of different view angles, and semantic understanding of a complex scene is enhanced; then, accurate spatial position attention features are generated through a parallel attention aggregation module PAAM, and the feature aggregation effect and semantic segmentation performance are improved in combination with multi-scale context information; then optimizing multi-scale features by using a multi-resolution feature aggregation module MRFA to ensure the spatial consistency and real-time performance of the high-precision semantic map; and finally, applying the generated semantic map to a real-time navigation system for visually impaired people. According to the method, the semantic understanding and real-time map construction capabilities in a complex traffic environment are remarkably improved, and safe and accurate navigation assistance is provided for travel of visually impaired people.

The invention provides a blind person voice navigation auxiliary method with a built-in offline AI intelligent model, and relates to the technical field of computer processing, and the blind person voice navigation auxiliary method comprises the following steps: S01, collecting environment image data in real time through an infrared-visible light binocular camera, synchronously obtaining six-degree-of-freedom motion attitude data of an inertial measurement unit, the binocular infrared-visible light binocular camera comprises a thermal imaging sensing channel; s02, inputting the environment image data into a pre-trained multi-task neural network model, and generating a three-dimensional semantic map containing a blind sidewalk topological structure and a dynamic obstacle detection result; and S03, based on a deep reinforcement learning algorithm, carrying out space-time clustering analysis on the historical paths of the user, and constructing a personalized habit route database fused with human body turning inertia. The sensing precision, the path planning humanization, the positioning accuracy and the extreme weather adaptability of the navigation system in a complex environment are remarkably improved, and safe navigation of the blind is guaranteed.

A Ship Movement-Sharing Navigation Support System is provided based on IoT or AI by using inexpensive and easy-to-carry user terminals such as smartphones or tablets. A method for navigating a ship comprises receiving a position information transmitted from a user terminal used in a user terminal-equipped ship via a mobile telephone network; receiving a position information via an AIS system transmitted via a VHF radio from an AIS device-equipped ship; and displaying icons of the user terminal-equipped ship and the AIS device-equipped ship on a nautical chart or radar display of the user terminal. In addition, the method comprises calculating a predicted moving route of the user terminal-equipped ship and the AIS device-equipped ship based on the information received from the user terminal and the AIS device and preventing a collision by displaying a caution or warning alert in a case there is a possibility of collision.

The invention relates to an airport aid-to-navigation light inspection method based on an unmanned aerial vehicle technology, and relates to the technical field of aid-to-navigation light inspection, and the method comprises the following steps: S1, setting standard parameters; s2, the unmanned aerial vehicle executes a flight task, and images are collected from multiple angles; s3, obtaining the mass center of the navigation aid lamp; s4, calculating actual geographic coordinates of the navigation aid lamp; s5, comparing the position coordinate information of the navigation aid lamp; s6, brightness attenuation detection of the navigation aid lamp; and S7, carrying out statistical feedback, and carrying out the step S2. The airport navigational light inspection method has the effects of reducing and improving the airport navigational light inspection cost and improving the airport navigational light inspection efficiency.

The invention relates to the technical field of blind guiding robot interactive navigation, and particularly discloses a blind guiding robot interactive navigation system combining vision, inertial navigation and voice, which is characterized in that environmental vision, movement and voice data are synchronously acquired through a multi-modal perception data acquisition module, and are analyzed through a situation-user joint state feature extraction module; a user potential intention deduction module is combined to predict a user intention and generate a self-adaptive guide strategy; a self-adaptive guiding path optimization module adjusts a navigation path according to a strategy to ensure safety and high efficiency; finally, the situational multi-mode interaction instruction output module provides voice and tactile feedback, and interaction experience and navigation autonomy are enhanced. According to the method, the travel problem of the visually impaired person in a complex environment is solved, the individuation, context perception capability and safety of blind guiding are improved, and more natural and efficient navigation assistance is brought to the visually impaired person.

Surgical systems and methods for tracking physical objects near a target site during a surgical procedure are provided, the surgical system employs a navigation system and a surgical instrument; an instrument tracker is provided on the surgical instrument and a patient tracker is provided on the patient's target tissue; the system and method is configured to detect an error condition compromising accuracy of the navigation guidance and to track and monitor a tool-to-bone offset.

Described herein are techniques and mechanisms for geographic routing. A database system may store data records corresponding with user accounts and including historical routing information characterizing geographic routes determined in association with the user accounts. A communication interface may receive a request from a remote computing device authenticated to a user account and identifying an initial geographic location and a terminal geographic location. A geographic routing engine may determine a route including turn-by-turn instructions for moving from the initial geographic location to the terminal geographic location. A generative language model interface may complete a navigation prompt to include novel text identifying supplemental route information. A user interface generation interface may transmit an instruction to the remote computing device to present a user interface that includes the turn-by-turn instructions and some or all of the supplemental route information.

The invention relates to the technical field of navigation assistance, in particular to a dynamic obstacle prediction and obstacle avoidance path planning method based on multi-sensor fusion, which realizes omnibearing perception of a dynamic obstacle through multiple sensors, provides a rich and reliable data basis for subsequent processing, and improves the accuracy of the dynamic obstacle prediction and obstacle avoidance path planning. Meanwhile, motion prediction is carried out on a dynamic obstacle through data processing fusion and model prediction, the motion inertia of the obstacle is fully considered, track prediction of the obstacle is closer to a real physical rule, a global path search problem is converted into a local but large enough space search problem through a mode of delimiting a final obstacle avoidance target area, and the search efficiency is improved. According to the method, the number of grids needing to be processed and the search calculation amount are remarkably reduced, the harsh requirement of the mobile device for the real-time performance is met, the area possibly occupied by the obstacle in the future is avoided in real time in the mode of constructing the cost function, then the obstacle avoidance planning path is generated, and the path safety is improved.

Techniques are disclosed for systems and methods to provide graphical user interfaces for assisted and / or autonomous navigation for mobile structures. A navigation assist system includes a user interface for a mobile structure comprising a display and a logic device configured to communicate with the user interface and render a docking user interface on the display. The logic device is configured to monitor control signals for a navigation control system for the mobile structure and render the docking user interface based, at least in part, on the monitored control signals. The docking user interface includes a maneuvering guide with a mobile structure perimeter indicator, an obstruction map, and a translational thrust indicator configured to indicate a translational maneuvering thrust magnitude and direction relative to an orientation of the mobile structure perimeter indicator.

The invention provides a vehicle lane changing method and system under high-speed navigation aided driving, and relates to the technical field of automobile intelligent aided driving, and the method comprises the steps: obtaining front vehicle millimeter wave radar information, map information and an automobile external environment image; identifying a front vehicle driving speed based on front vehicle millimeter wave radar information, and identifying a vehicle distance and a lane changing space based on an environment image and map information; setting a difference threshold according to difference comparison between the vehicle speed and the running speed of the front vehicle, and judging whether lane changing can be carried out or not according to a comparison result with the difference threshold; wherein the lane changing modes comprise overtaking lane changing, navigation lane changing and efficient lane changing, and the navigation lane changing refers to judging whether a ramp, an entrance, an exit and an intersection exist in front or not, intervening navigation lane changing control and assisting a vehicle in lane changing.

The invention belongs to the technical field of water traffic transportation safety and navigation mark navigation aiding, and mainly relates to a navigation mark anti-collision early warning method based on multi-sensor fusion, and the method comprises the steps: constructing a multi-sensor fusion architecture integrating an AIS terminal, a laser radar and an AI camera, and achieving the omnibearing monitoring and precise recognition of a ship in a navigation channel; a grading response mechanism is adopted, corresponding functions are dynamically started according to the real-time distance between the ship and the navigation mark, and targeted response from early warning to emergency warning is achieved; a legal evidence chain packaging mechanism is introduced, a unique ID is generated for each early warning event, formatted evidence is stored in an associated mode, and integrity and traceability of data are ensured; through a dynamic energy supply strategy, an equipment operation mode is intelligently adjusted according to a storage battery voltage threshold value, and continuous and stable work of the system under the conditions of cloudy and rainy days, night and the like is guaranteed; according to the invention, the accuracy, timeliness and reliability of navigation mark collision early warning information are effectively improved.

The invention relates to a navigation aid decision-making method based on a large model, which comprises the following steps of: constructing a scene knowledge model of real-time information such as intelligent navigation situation awareness, situation cognition and intelligent navigation design operation conditions, and designing entities, attributes and relationships between the scene knowledge model and navigation knowledge to form a navigation knowledge aid decision-making graph mode; collecting and preprocessing navigation knowledge data, and constructing a user-defined navigation knowledge data set; performing fine tuning on the pre-trained general large model through the knowledge graph extraction data set, and constructing a knowledge graph knowledge extraction large model; performing fine tuning on the pre-trained general large model through the knowledge question-answer fine tuning data set, and constructing a navigation knowledge question-answer large model; constructing a navigation knowledge aided decision-making knowledge graph; based on the navigation knowledge question and answer large model and the navigation knowledge aid decision knowledge graph, constructing a navigation aid decision generation model based on reinforcement learning; and designing the navigation aid decision-making device based on the intelligent voice interaction mode. The method can provide auxiliary decision support for ship navigation.

The invention discloses an intelligent driving method and a related device, which are applied to the technical field of intelligent driving, and the method comprises the following steps: after a cruise birthhand mode starting instruction is obtained, controlling a vehicle to enter a cruise birthhand mode based on the cruise birthhand mode starting instruction, the at least one intelligent driving function switch associated with the cruise birthhand mode is set to be in the conservative state, so that the vehicle can adopt a more careful and conservative driving strategy in the cruise birthhand mode, and therefore, for a user who does not know a high-order navigation aided driving function, the navigation aided driving function experience is ensured, and the driving experience of the vehicle is improved. And potential safety hazards caused by unfamiliarity with the high-order navigation aided driving function can be reduced to a certain extent.

A flying vehicle with folding wings that drives well on the ground and flies well in the air; controlled from inside, it changes from automotive to aircraft configuration without the operator needing to get out of the vehicle. The balance point of the vehicle is located midway between the front and back wheels, providing good handling on the road. In the aircraft configuration with wings unfolded, there is a front wing and a back wing. The incidence of the front wing is controllable, enabling the craft to rotate and take off with a center of gravity located well ahead of the rear wheels. The back wing is fitted with foldable vertical stabilizers near its wing tips. In automobile configuration the wings are folded on top of the body; the wings resemble a roof rack with large surfboards on it. Driven wheels provide motive power on the ground; ducted fans provide thrust for air travel. An autopilot system provides stability and navigation aid, particularly in bad weather or poor visibility. In the roadable configuration, filling water ballast tanks provides additional crosswind stability and crash protection. Also in a roadable configuration, the present invention may be licensed as a three-wheeled motorcycle towing a two-wheeled trailer. In its flying configuration, the invention can be licensed as a Light Sport Aircraft.

A navigation assistance system using a plurality of sensors according to an aspect of the present disclosure includes a display configured to provide a monitoring image, a sensor unit including at least one sensor, a memory in which at least one program is stored, and at least one processor configured to execute the at least one program, wherein the at least one processor obtains image frame information of an object using a first sensor, calculates information about the object using a second sensor, calculates a risk of collision between a host ship and the object by fusing the image frame information of the object and the information about the object, and determines an avoidance path based on the calculated collision risk.

Techniques for inertial navigation aided with multi-interval pose measurements are disclosed. The techniques can include obtaining inertial measurement unit (IMU) data from an IMU, generating, based on the IMU data, a respective pose measurement vector according to each of a plurality of machine-learning models, resulting in a plurality of pose measurement vectors, wherein each of the plurality of pose measurement vectors is associated with a respective one of multiple motion classes, and determining a device pose estimate based on the IMU data and the plurality of pose measurement vectors.

The invention discloses a navigation method, device and equipment for a rescue scene and a computer program product. The method comprises the following steps: acquiring an initial path planning result and multi-dimensional path optimization information of a rescue vehicle; the initial path planning result is optimized according to the multi-dimensional path optimization information, and driving of the rescue vehicle is controlled according to the optimized path; real-time traffic information is obtained through V2X communication, so that auxiliary reminding information is generated, and whole-road-section auxiliary reminding is carried out; and when the navigation auxiliary condition is met, acquiring navigation auxiliary information through the intelligent wearable device so as to carry out auxiliary navigation on a special road section. According to the invention, path optimization is carried out by using the multi-dimensional path optimization information, and a more reasonable and efficient driving path is planned for the rescue vehicle. And external information is acquired by means of V2X communication, and all-road-section auxiliary reminding is carried out, so that the driving safety and the passing efficiency are improved. And navigation auxiliary information is provided through the intelligent wearable device in a special road section, so that the rescue capability in a complex scene is further improved.

The invention discloses a magnetic navigation assisted PICC (peripherally inserted central catheter) visual positioning method. The method comprises the following steps: acquiring signal field distribution data; acquiring real-time position information flow and direction information flow according to the signal field distribution data; based on the position information flow and the direction information flow, a data fusion processing technology is adopted, multi-source information is integrated, and dynamic space coordinate data of the PICC in the deep domain of the human body are obtained; according to the dynamic space coordinate data, a real-time acquisition rate optimization model is constructed, and the real-time acquisition rate optimization model is used for analyzing the delay condition of the information feedback speed and judging whether feedback delay exceeds a preset threshold value or not, and the signal field intensity is adjusted according to a judgment result; mapping the position and direction information flow of the PICC to a visual interface according to the adjusted signal field intensity and dynamic space coordinate data to obtain a preliminary dynamic visual image; and obtaining a dynamic visual image through the preliminary dynamic visual image in combination with a guide accuracy calibration mechanism.

The utility model provides a quick connecting plug for a dimmer of an airport navigational lighting system, which relates to the field of electrical technology and comprises an aviation socket, an aviation plug is arranged at one end of the aviation socket, a jack is arranged at one end of the aviation socket, and a pin is fixedly mounted on the inner wall of the aviation plug. According to the utility model, through the arrangement of the protection plate, when the aviation plug and the aviation socket are separated, external foreign matters and impurities can be effectively prevented from entering the plug, the problem of poor contact caused by entering of the impurities into the plug is reduced, the reliability is improved, and the protection plate automatically shields when the plug is not inserted into the socket. When the plug is inserted, the plug automatically slides to give way, and the contact pin is exposed, so that dust can be effectively prevented from entering, meanwhile, faults and abrasion caused by poor contact can be reduced due to the fact that external impurities are prevented from entering, the service life of the connecting plug is prolonged, and the maintenance cost is reduced.

The invention provides an intelligent monitoring and early warning system based on a marine navigation mark, and relates to the technical field of monitoring and early warning, and the system comprises a navigation mark data collection module which is used for obtaining various data according to a preset navigation mark monitoring interval. And the risk assessment module is used for obtaining a position offset risk value according to the influence of the interference factor data on the navigation mark position. And the deviation early warning module is used for setting a position deviation threshold value according to the historical pose data in combination with the external factor data, judging whether the position deviation risk value of each navigation mark exceeds the position deviation threshold value or not, and generating a preliminary early warning signal if the position deviation risk value of each navigation mark exceeds the position deviation threshold value. And the ship influence early warning module is used for calculating a ship navigation influence coefficient according to the navigation data of the surrounding ship sending the preliminary early warning signal navigation mark in combination with the real-time position parameter, and generating early warning information in combination with the position offset risk value. The navigation mark monitoring precision is improved, the early warning timeliness is enhanced, the operation and maintenance cost is reduced, and the method can automatically adapt to different environments and scenes.

The invention discloses a navigation aid information real-time transmission and analysis system based on a navigation mark, and relates to the field of navigation mark telemetering, the system is composed of a plurality of functional modules, and the system comprises a data acquisition module for acquiring dynamic data, meteorological data and hydrological data of ships near the navigation mark; the edge calculation module is used for generating a ship real-time track according to the ship dynamic data, obtaining a ship prediction track based on the ship real-time track and the hydrological data, and calculating a deviation degree based on a preset ship channel and the ship prediction track; the risk prediction module carries out risk analysis on the deviation degree according to meteorological data and carries out route adjustment according to a risk analysis result, and the route adjustment module generates an optimized route by applying an A * algorithm and considering ship dynamic constraint and channel limitation and then sends an instruction in time through the VHF radio module, so that risks of ship deviation from a channel, collision and the like are effectively avoided; the safety of sailors, ships and goods is greatly guaranteed.

The invention provides an inertial navigation aided navigation positioning method and system, and the method comprises the steps: calculating the coordinate of each navigation satellite in an ECEF coordinate system according to the satellite ephemeris of a satellite navigation system; according to the navigation satellite coordinate and the inertial navigation system positioning result, the azimuth angle and the pitch angle of the navigation satellite relative to the optical detection equipment under the ENU coordinate system are solved, and the navigation satellite is tracked; acquiring star maps collected by the optical detection equipment, matching the star maps through a star map recognition algorithm, resolving a coordinate transformation matrix between two continuous frames of star maps, and recognizing fixed stars and satellites in the star maps based on the transformation matrix; converting the identified fixed star in the field of view into an ECEF coordinate system, calculating an observation angular distance between the fixed star and the satellite, and calculating a satellite observation vector in the ECEF coordinate system according to the observation angular distance; and performing error correction on the positioning result of the inertial navigation system based on the satellite observation vector. Through the scheme, the positioning precision of the inertial navigation system can be improved, and the influence of interference deception signals is reduced.

The invention relates to the technical field of visual impaired people assistance, in particular to a self-adaptive perception prompting system and method for visual impaired people assistance, and the method comprises the following steps: obtaining environment data around a user; the target information is recognized and transmitted to the user through the wearable somatosensory feedback module in a skin stimulation mode, so that the user can perceive surrounding objects and directions thereof through skin stimulation, and then obstacle avoidance can be achieved. Furthermore, an active exploration self-adaptive auxiliary module is introduced, an action track of a user is collected and analyzed to be compared with an environment model, an omission area or space deviation in perception is recognized, and a reinforcing prompt is triggered, so that the user is guided to complete more comprehensive environment exploration and space construction. Limitations of a traditional blind guiding stick and a traditional blind guiding dog are avoided, and higher-precision space perception and navigation assistance can be obtained only by wearing the somatosensory feedback module.

The invention provides a navigation auxiliary device for a surgical operation, and relates to the technical field of medical assistance. The navigation auxiliary device comprises a consumable large round base, a consumable nose clip base, at least one consumable small round base, a consumable clamping guide needle assembly and consumable zero point sensor assemblies, wherein the consumable zero point sensor assemblies are installed on the consumable large round base and the consumable nose clip base respectively. The consumable large round base, the consumable nose clip base and the consumable small round base are all provided with gum and positioning steel balls, the gum is used for pasting the consumable large round base, the consumable nose clip base and the consumable small round base to different positions of a patient, and the consumable clamping guide needle assembly is provided with a first sensor. The consumable zero point sensor assembly is used for acquiring space calibration data of the consumable large round base, the consumable nose clip base and the at least one consumable small round base after the marking end of the consumable clamping guide needle assembly touches the positioning steel balls, and the consumable zero point sensor assembly is used for verifying the space calibration data. The navigation auxiliary device is simple and convenient to install.

The invention belongs to the technical field of power system dispatching methods, and particularly relates to a water storage and navigation aid waterway hydrogen chain and drainage basin power system cooperative dispatching method for a hydropower station. Comprising the following steps: establishing an RSOC operation constraint considering flexible conversion of hydrogen production and power generation; constructing an HV space-time energy transfer constraint; constructing a short-term scheduling model of the waterway hydrogen chain basin power system; designing a double-layer algorithm capable of realizing optimal distribution of thermal power of the thermal power plant and the electric boiler; processing the nonlinear constraint of the short-term scheduling model by adopting a linearization method, and solving the short-term scheduling model to obtain an optimization strategy; and guiding short-term cooperative operation of the waterway hydrogen chain and the watershed power system thereof according to the optimization strategy. The scheduling method can further reduce the system operation cost while giving consideration to the energy balance of the waterway hydrogen chain and the watershed power system thereof, coordinates the contradiction between the hydropower station power generation power and the HV transfer feasibility, and improves the operation flexibility of the thermal power plant.

Certain aspects relate to systems and techniques for navigation-assisted medical devices. Some aspects relate to correlating features of depth information generated based on captured images of an anatomical luminal network with virtual features of depth information generated based on virtual images of a virtual representation of the anatomical luminal network in order to automatically determine aspects of a roll of a medical device within the luminal network.

Methods provide computer-navigation assisted total hip arthroplasty (THA) procedures. Such procedures include the use of a navigated instrument, e.g., a navigated reamer construct or a navigated inserter construct to prepare the acetabulum and insert an acetabular shell, a camera tracking system adapted to track a pose of the navigated inserter or reamer construct relative to the patient in use, and a computer platform adapted to receive pose tracking information and generate and display navigational guidance for the user.