53 results about "Navigation assistance" patented technology

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.

The invention relates to the technical field of navigation control, in particular to an obstacle light-based unmanned aerial vehicle navigation auxiliary system, which comprises the following steps of: combining an image sequence with inertia time information, segmenting a light source area and extracting a frequency label, so that the stable identification capability on an optical signal is enhanced; the signal state and the time index can be accurately judged especially in a complex shielding environment, the robustness of obstacle light recognition in multiple angles and multiple scales is improved through direction vector extraction and a comparison mechanism of a graph neural network, an edge weight matrix is established in combination with light intensity calculation and shielding state elimination, and the robustness of obstacle light recognition in multiple angles and multiple scales is improved. The method effectively enhances the understanding of the spatial layout of the obstruction lights and the navigability of the graph model, extracts the vector group through the graph model, eliminates the shielding, and compares the path instruction selection logic of the action score, so that the path planning process has stronger dynamic adaptability and error tolerance, and enhances the navigation accuracy and flight safety in the complex airspace.

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.

The invention provides a blind person navigation assisting method, device and equipment based on AI glasses and a storage medium. The method comprises the following steps: constructing a navigation path between a current position of a user and a destination; according to the image data and the sensing data, determining environment information in a preset range of the navigation path and a real-time pose of the user; generating navigation guidance information according to the environment information and the real-time pose of the user; and converting the navigation guidance information into a spatial audio signal, and carrying out traveling navigation based on spatial audio prompt on the user through the spatial audio signal. According to the method, the navigation guidance information related to the real-time pose of the user is generated by integrating the visual sensing data of the AI glasses, the pose information of the inertial sensor and the navigation path information, and the navigation guidance information is converted into the spatial audio signal for navigation; when the user is separated from the navigation path, the user can be guided to accurately judge the advancing direction through spatial audio prompt, and the appearance safety of the user is improved.

The invention discloses a ship air sail navigation aiding energy efficiency dynamic optimization method and system and a ship, and relates to the technical field of ship energy conservation. Dynamic parameters in the ship navigation process are collected in real time; establishing a dynamic coupling model; the coupling model is utilized to quantify the dynamic interference of the hull attitude parameters on the air sail state parameters into attack angle offset; a reinforcement learning algorithm is adopted to simulate the attack angle offset, and the optimal attack angle of the air sail is obtained; according to the optimal attack angle and the environmental parameters, target adjustment parameters of the air sail are calculated; and driving the air sail to adjust the sail body rotation angle and the sail surface inclination angle in real time according to the target adjustment parameters. According to the method, the air sails always work in the efficient interval with the maximum lift coefficient and the minimum resistance coefficient, the pneumatic interference model is introduced, the total auxiliary thrust of the multiple sails is improved, the problem that the energy-saving effect is reduced due to dynamic deviation of the attack angle is effectively solved, and the situation that the fuel consumption of a main engine is reduced is stably achieved.

The application discloses a kind of tunnel construction dynamic measurement methods based on inertial navigation auxiliary, comprising: obtaining tunnel construction priori information and stage division parameter;With the measuring equipment of loaded inertial measurement unit, laser radar and odometer, it is installed on construction machinery, travels along tunnel axis, and real-time collection multi-source data;Based on point cloud feature density, the stage where it is located is automatically identified, and corresponding multi-level adaptive constraint model is dynamically switched, including adaptive nonholonomic kinematics constraint, environmental feature constraint based on point cloud data and design section, and absolute correction constraint based on template matching automatically identifying natural existing reserved reference point in tunnel;Extended Kalman filter is constructed to fuse multi-level constraint and dynamically adjust weight;Through loop detection and graph optimization, cumulative error is eliminated and control network is updated.The application realizes adaptive high-precision dynamic measurement of whole process of tunnel construction, does not need artificial layout beacon, effectively solves the problem of unstable positioning accuracy in complex environment.

This invention relates to the field of navigation assistance technology, and in particular to a dynamic obstacle prediction and obstacle avoidance path planning method based on multi-sensor fusion. This invention achieves comprehensive perception of dynamic obstacles through multiple sensors, providing a rich and reliable data foundation for subsequent processing. At the same time, it predicts the motion of dynamic obstacles through data processing fusion and model prediction, fully considering the motion inertia of obstacles to make their trajectory prediction closer to real physical laws. Furthermore, by "delineating the final obstacle avoidance target area", the global path search problem is transformed into a local but sufficiently large spatial search problem, significantly reducing the number of grids to be processed and the amount of search computation, meeting the stringent real-time requirements of mobile devices. Moreover, by constructing a cost function, it avoids areas that obstacles may occupy in the future in real time, thereby generating an obstacle avoidance planning path, which helps to improve path safety.

Roughly described, a viewer application is provided for viewing a PDF document on a screen of a device such as a mobile phone or tablet. The viewer application may operate in page mode or in text mode. In page mode the original layout is maintained, and navigation assistance is provided by use of a navigation pane indicating the contents of the screen with a superimposed frame. Display of the navigation pane is controllable by the user. In page mode a selected text column is scrolled and zoomed to optimize reading. In text mode, text is extracted from the document and reformatted in text view to be continuous and complete in correct reading order, and images and advertising may be excluded. The user may toggle between page mode and text mode. The viewer application is implemented in software to by executed by a processor on the device.

The invention relates to a parking space-to-parking space pilot auxiliary control method and system and a vehicle. The method comprises the following steps: receiving a navigation request from a starting parking space to a target parking space; obtaining a parking lot high-precision map, a real-time parking space state and dynamic traffic information based on the navigation request, and planning a global path from the starting parking space to a target parking space according to the parking lot high-precision map, the real-time parking space state and the dynamic traffic information; positioning a vehicle and acquiring real-time environment information, and planning a local path according to the positioning result and the real-time environment information on the basis of the global path; generating a vehicle control instruction according to the local path and the real-time environment information; and the vehicle control instruction is executed until the vehicle arrives at the target parking space and parking operation is completed. According to the invention, navigation assistance from the starting parking space to the target parking space is realized.

The present disclosure relates to a technique for providing navigation assistance to both the driver as well as other vehicle occupants of the vehicle. The technique recites acquiring a placement information for a plurality of light sources and haptic sensors inside the vehicle such as to attract the attention of the driver only in the peripheral vision, without any requirement to take the eyes off the road. It also discloses a navigation unit and an ambient light sensing module configured to provide navigation information and the ambient light information respectively to the control unit. The control unit in turn processes this received information and control the functioning of both the light sources as well as the haptic sensors in order to update the driver and passengers about the upcoming navigation events.

The application 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, wherein the blind guiding robot interactive navigation system synchronously acquires environment vision, motion and sound data through a multi-modal perception data acquisition module, analyzes the data through a context-user joint state feature extraction module, combines a user potential intention deduction module, predicts the user intention, generates an adaptive guiding strategy, adjusts a navigation path according to the strategy through an adaptive guiding path optimization module, ensures safety and efficiency, and finally provides voice and tactile feedback through a situational multi-modal interactive instruction output module, thereby enhancing the interactive experience and navigation autonomy. The application solves the travel problem of the visually impaired in a complex environment, improves the individualization, situational perception ability and safety of blind guiding, and brings more natural and efficient navigation assistance to the visually impaired.

This invention provides a navigation assistance device, a vessel, a navigation assistance method, and a navigation assistance procedure, which can detect the position of the horizon even at night based on the identification results of the lights of other vessels, using images acquired by a visible light camera. The navigation assistance device for assisting the navigation of a vessel includes a light detection unit. The light detection unit detects lights based on color information included in images acquired using a visible light camera.

Methods for navigation assistance for vision-impaired individuals can include determining that an image captured by an imaging device contains an unknown object, and determining that the unknown object is not resolvable within a threshold period of time. The methods can further include performing an operation to reallocate computing resources among memory devices that are couplable to the imaging device in response to determining that the unknown object is not resolvable within the threshold period of time. Data corresponding to the unknown object can be written to the reallocated computing resources, and operations involving the data corresponding to the unknown object can be performed using the reallocated computing resources to resolve the unknown object.

The invention is entitled "Systems and methods for assisted navigation using distributed avionics processing." The invention discloses methods, systems, and non-transitory computer-readable media for distributed vehicle navigation processing for a vehicle. For example, the method can include, by the vehicle: obtaining reference data from one or a combination of an imaging system, an antenna system, and / or a radar system of the vehicle; in response to obtaining the reference data, determining whether a GNSS signal is below a threshold; and in response to determining that the GNSS signal is below the threshold, transmitting a navigation assistance request message including the reference data to an edge node or a cloud node. By the edge node or the cloud node: in response to receiving the navigation assistance request message from the vehicle, performing a position resolution process to determine and transmit a position of the vehicle by one or more functions. By the vehicle: performing a navigation control process based on the determined position.

The techniques presented herein are directed to a system for automated navigation assistance in indoor environments. In general, navigating an unfamiliar indoor environment can be a daunting task. This is especially true for large environments such as corporate offices, university campuses, shopping centers, and hospitals. Accordingly, the present system utilizes a reference database containing information associated with the indoor environment such as images depicting various locations, annotations describing the images, and floorplans illustrating the layout of the indoor environment. The reference database is deployed in conjunction with a multimodal language model that utilizes the collected knowledge of the reference database to provide location identification and intuitive navigation instructions. Often referred to as retrieval-augmented generation (RAG), the reference database enables the multimodal language model to respond to user requests using domain-specific information and ensure accurate outputs that are relevant to an end user's context (e.g., the indoor environment).

[Problem] To provide a navigation assistance device with which it is possible to combine assessment criteria pertaining to a risk of collision. [Solution] A navigation assistance device comprising: a first acquisition unit that acquires first ship data representing the position and speed of a first ship; a second acquisition unit that acquires second ship data representing the position and speed of a second ship; a first calculation unit that, on the basis of the first ship data and the second ship data, calculates a first collision risk value based on the time required for the second ship to approach the first ship; a second calculation unit that, on the basis of the first ship data and the second ship data, calculates a second collision risk value based on the distance between the first ship and the second ship; and an assessment unit that, on the basis of the first collision risk value and the second collision risk value, assesses whether there is a risk of collision between the first ship and the second ship.

The invention discloses an intelligent medical information management system, and relates to the technical field of medical information processing, and the system comprises a medical image sensing module which collects a dynamic image of an operation area and transmits the dynamic image according to a standard protocol; the low-delay semantic segmentation module is internally provided with an AI adaptive scene optimization sub-module, identifies a scene and adjusts parameters, and segments areas such as a focus by improving U-Net; the surgical navigation linkage module superposes results, adapts a visual angle and triggers an alarm; the data synchronous storage module encrypts stored data and supports tracing and medical record association; the equipment adaptation module is compatible with mainstream equipment, automatically matches a protocol and is deployed in a lightweight manner, and all the modules cooperate through a special Ethernet; the low-delay semantic segmentation module with the built-in AI self-adaptive scene optimization sub-module is matched with the improved U-Net architecture dynamic parameter adjustment segmentation, equipment compatibility, real-time navigation assistance and data safety tracing are achieved through cooperation of multiple modules, the problem that a traditional system is short is solved, and various surgical scenes and clinical requirements are met.

The application provides a navigation auxiliary device for surgery, and relates to the technical field of medical auxiliary devices.The navigation auxiliary device comprises a consumable large-circle base, a consumable nose-clip base, at least one consumable small-circle base, a consumable clamping guide needle assembly, and consumable zero-point sensor assemblies respectively installed on the consumable large-circle base and the consumable nose-clip base.The consumable large-circle base, the consumable nose-clip base, and the consumable small-circle base are all provided with back glue and positioning steel balls.The back glue is used to paste the consumable large-circle base, the consumable nose-clip base, and the consumable small-circle base to different positions of a patient respectively.The consumable clamping guide needle assembly is provided with a first sensor, which is used to obtain spatial calibration data of the consumable large-circle base, the consumable nose-clip base, and the at least one consumable small-circle base after the marking end of the consumable clamping guide needle assembly touches the positioning steel balls.The consumable zero-point sensor assemblies are used to verify the spatial calibration data.The navigation auxiliary device of the application is simple and convenient to install.

The invention discloses a puncture navigation auxiliary system based on historical puncture data. The puncture navigation auxiliary system comprises a puncture data acquisition module, a data primary processing module, an unsuitable area identification module, a puncture path optimization module and a puncture navigation auxiliary module. The invention relates to the technical field of medical puncture navigation assistance, in particular to a puncture navigation assistance system based on historical puncture data. A primary processing method of multispectral image processing, depth data reconstruction, space-time coding, multi-modal fusion and data set segmentation is adopted; an unsuitable area identification module is adopted to identify an unsuitable injection area, multispectral features and historical puncture information are fused, modeling of complex pathological features is achieved, meanwhile, an antagonism mechanism is adopted to enhance pathological difference perception, and the detection sensitivity is remarkably improved; layered decoding and output are adopted to improve the model, and it is ensured that the generated probability graph of the unsuitable area has space consistency and pathological credibility.

The invention relates to the technical field of ship navigation assistance, and discloses a scene perception-based ship navigation optimal view angle determination control method and system, and the method comprises the steps: determining a first monitoring view angle according to the position relation condition of a target ship and an associated water object; determining a second monitoring view angle according to a fixed navigation view angle requirement, and determining a third monitoring view angle according to a navigation scene environment condition; and according to the first monitoring view angle, the second monitoring view angle and the third monitoring view angle, determining an optimal monitoring view angle of the target ship, the optimal monitoring view angle being used for converting and generating a multi-monitoring-dimension real-time monitoring top view corresponding to the target ship. The plurality of monitoring dimensions comprise one or a combination of a plurality of monitoring directions, a plurality of monitoring angles and a plurality of monitoring distances. Therefore, the diversity, the flexibility and the pertinence of determining the visual angle information of the optimal monitoring visual angle can be improved, the accuracy and the reliability of the optimal monitoring visual angle are improved, and the safety and the monitoring real-time performance of ship navigation are improved.

In some embodiments, a computer system computer system dynamically presents content in response to user input. In some embodiments, the computer system dynamically presents user interface elements according to one or more appearance conditions in response to detecting an event. In some embodiments, the computer system presents relevant content in response to user input. In some embodiments, the computer system presents user interface elements based on a location of a user of the computer system. In some embodiments, the computer system presents spatial audio corresponding to content. In some embodiments, the computer system provides navigation assistance.

Presented are intelligent electronic footwear and apparel with controller-automated features, methods for making / operating such footwear and apparel, and control systems for executing automated features of such footwear and apparel. A method for operating an intelligent electronic shoe (IES) includes receiving, e.g., via a controller through a wireless communications device from a GPS satellite service, location data of a user. The controller also receives, e.g., from a backend server-class computer or other remote computing node, location data for a target object or site, such as a virtual shoe hidden at a virtual spot. The controller retrieves or predicts path plan data including a derived route for traversing from the user's location to the target's location within a geographic area. The controller then transmits command signals to a navigation alert system mounted to the IES's shoe structure to output visual, audio, and / or tactile cues that guide the user along the derived route.

Provided is a navigation assistance device capable of presenting a candidate course to a user in an easily understandable manner. A navigation assistance device is provided with: a candidate course calculation unit that calculates a plurality of candidate courses for a ship; a route classification unit that divides the plurality of candidate routes into a plurality of groups on the basis of the similarity, and specifies representative routes for each of the plurality of groups; and a display unit that displays the representative route for each of the plurality of groups.

To provide a technique capable of causing a target ship to avoid a polygonal area where there is a risk of collision between the target ship and another ship.SOLUTION: An information acquisition unit which acquires target ship information indicating a position of the target ship; with respect to a first collision risk region indicating a range where there is a risk of collision between the target ship and a first other ship by a polygonal shape in which a plurality of constituent points are connected, calculating a course range of the first collision risk region around the position of the target ship indicated in the target ship information; And a collision avoidance course calculator configured to calculate, as a collision avoidance course candidate of the target ship, a starting azimuth course passing through a constituent point at a starting azimuth of the course range or passing through an outer side of the first collision risk area around the position of the target ship with respect to the constituent point, and an ending azimuth course passing through a constituent point at an ending azimuth of the course range or passing through an outer side of the first collision risk area around the position of the target ship with respect to the constituent point.SELECTED DRAWING: Figure 3

[Program] To provide a navigation assistance system capable of orienting an imaging direction of a camera to a direction of a target present around a vessel. [Solution] This navigation assistance system comprises: a target sensor that detects the position of a target present around a ship; an azimuth sensor that detects the bow direction of the vessel; a camera that is installed on the vessel and has a posture drive unit that changes the imaging direction; an imaging control unit that controls the posture drive unit to orient the imaging direction of the camera to the direction of the target with reference to the vessel; and a display control unit that displays an image generated by the camera.

A registration method includes a storage of two three-dimensional representations of an object and locations of at least three reference points of the object in these two three-dimensional representations; an angular registration of the first three-dimensional representation on the object from a recording of locations of the reference points of the object in a reference frame linked to a reference ancillary fixed on the object; a surface registration of the first three-dimensional representation on the object, including a recording of locations of surface points other than the reference points on the surface of the object in the three-dimensional reference frame linked to the referencing ancillary; and a registration of the second three-dimensional representation of the object on the object itself including a surface registration of this second three-dimensional representation on the basis of the recording of the surface point locations made for the surface registration of the first three-dimensional representation.

The invention discloses a lane selection method, device and equipment and a storage medium, and relates to the technical field of intelligent driving, and the method comprises the steps: obtaining special lane information from the driving information of a target vehicle; a special lane corresponding to the special lane information is a special lane of a special vehicle, and the special lane is a lane provided with a stop station of the special vehicle; and generating a lane selection strategy according to the special lane information, and selecting a to-be-driven target lane for the target vehicle based on the lane selection strategy. In the lane selection strategy generation and lane selection process, the special lane information provided with the special vehicle parking station is fully considered, the predictability of the driving behavior of the special vehicle is improved, the problem that the vehicle is forced to brake or stop after the vehicle runs or changes the lane according to the selected lane can be avoided, and the driving safety of the vehicle is improved. And invalid lane changing is reduced, and the passing efficiency of the vehicle is improved, so that the driving experience of the user using the intelligent navigation auxiliary function is improved.

A navigation assistance method for a mobile carrier including an inertial navigation unit, at least one inertial sensor, an estimation unit performing steps of: parametrization of a non-linear system configured to estimate a navigation state of the mobile carrier over a given time interval at an iteration n as a function of a kinematic model and / or measurements; linearization of the system so that the system expresses a navigation state at iteration n as a function of the state at iteration n−1 and a correction to this navigation state; estimating a first correction of a navigation state at iteration n; estimating a second correction of the navigation state at iteration n; determining a third correction by merging the first and second corrections; and correcting the navigation state at iteration n as a function of the third correction, the corrected state being used at iteration n+1.

A method and a system for providing AI-assisted navigation assistance to a user within a region of interest (ROI) is disclosed. A processor receives one or more navigation queries from a user device. A first set of locations within the ROI is determined by querying a retrieval augmented generation (RAG) model based on query embeddings of the one or more navigation queries, global spatial embeddings relevant to the query embeddings, and first metadata associated to the global spatial embeddings. Further, the processor by employing one or more predefined functions determines a second set of locations within the ROI. A set of navigation instructions is determined to reach the at least one desired location from the second set of locations.

The invention proposes a method for operating a vehicle, and the method is characterized in that the method comprises the following steps: an obtaining step, in the obtaining step, obtaining the head motion and / or facial image and / or utterance of a driver of the vehicle; an evaluation step in which the driver's willingness to obtain navigation assistance is evaluated on the basis of the acquired head action and / or facial image and / or utterance; and an assisting step: adding navigation assistance to the driver under the condition that the driver needs the navigation assistance is evaluated, and / or weakening the navigation assistance to the driver under the condition that the driver is evaluated to conflict with the navigation assistance. The invention further provides a corresponding controller and a vehicle. The method has the positive effects that proper navigation assistance can be provided according to the intention of a driver; meaningless acquisition and evaluation can be avoided.