92 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.

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.

The invention relates to the technical field of medical data processing, and discloses a puncture navigation auxiliary system for tumor intervention, which is characterized in that a three-dimensional navigation puncture path is generated based on preoperative multi-modal medical image data, and dynamic compensation is carried out on organ elastic deformation in an operation; a puncture time window is predicted through the breathing phase monitoring module, and a control signal is sent to an external puncture operation device through the external execution equipment interface; displaying a navigation puncture path and a risk area in combination with an intraoperative real-time image and a holographic projection interface, and adjusting puncture parameters through gesture interaction; the puncture path, resistance and impedance data in the puncture process are recorded, and a postoperative curative effect scheme is generated. According to the method, the accuracy of puncture is improved, the risk of injury to surrounding tissues is reduced, and meanwhile, the real-time feedback capability of an operation is also enhanced.

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 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.

1. The name of this design product: Intelligent driving navigation assistance prompt graphical user interface for electronic equipment. 2. Purpose of this design product: To perform algorithmic analysis on lane deviation, front collision, pedestrian collision, etc., and to provide corresponding warnings through visual representation. 3. The key design point of this design product lies in the interface content of the graphical user interface on the screen. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. Designate Design 1 as the base design. 6. Purpose of the graphical user interface: This graphical user interface is used to display prompt information during autonomous navigation assisted driving; after the vehicle turns on the autonomous navigation driving function, it performs algorithmic analysis on lane deviation, front collision, pedestrian collision, etc., and makes corresponding warnings: The main view of Design 1 is the front collision warning interface; when the vehicle system detects that the distance to the adjacent vehicle or pedestrian is too close, it makes a collision avoidance warning, and the interface is shown in the main view of Design 2; when the vehicle system detects that the vehicle is changing lanes without crossing the line, the interface is shown in the main view of Design 3; when the vehicle system detects that the lane cannot be changed on the road section being traveled, the interface is shown in the main view of Design 4; when the vehicle system detects that the vehicle deviates from the lane, the interface is shown in the main view of Design 5; when the vehicle system detects that the vehicle remains in the lane, the interface is shown in the main view of Design 6.

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.

A method for providing navigation assistance in a three-dimensional (3D) virtual environment includes a plurality of virtual characters corresponding to a plurality of users, wherein the plurality of virtual characters communicates with each other in the 3D virtual environment and a plurality of virtual cameras corresponding to the plurality of virtual characters. Further, the given virtual camera being movable according to a movement of the corresponding virtual character. Further, providing at least one predefined navigation path in the 3D virtual environment for directing the plurality of virtual characters to move towards at least one virtual area in the 3D virtual environment. Furthermore, providing an indication of scene details in the at least one virtual area. Moreover, capturing a plurality of video streams using the plurality of virtual cameras and sending the plurality of video streams to the plurality of user devices for display thereat.

1. The name of the design product: the graphical user interface of an electronic device for displaying driving information. 2. The use of the design product: an electronic device. 3. The design points of the design product: the graphical user interface. 4. The picture or photo that best shows the design points: front view. 5. The appearance design contains colors. 6. The use of the graphical user interface: for displaying driving scenarios. 7. The human-computer interaction mode of the graphical user interface: in the case of the vehicle being in the parking state, the interface of the front view displays parking information, current power information and mileage related information. In the case of the vehicle being in the parking state and charging, enter the interface change state diagram 1; the interface change state diagram displays the vehicle's range and charging information. In the case of the vehicle stopping charging and entering the driving state, enter the interface change state diagram 2; the interface change state diagram 2 displays the vehicle's current driving mode, driving speed, navigation information, mileage related information and current power information. In the case of the vehicle activating the intelligent navigation assistance function, enter the interface change state diagram 3; the interface change state diagram 3 displays the visual effect of the intelligent navigation assistance function being activated, the road surface special effect of the vehicle being in the intelligent navigation assistance state, the vehicle's current driving mode, driving speed, current power information and tire pressure information of the vehicle's tire. In the case of the vehicle being in the intelligent navigation assistance state and adjusting the following distance, enter the interface change state diagram 4; the interface change state diagram 4 displays the vehicle's current driving mode, driving speed, mileage related information, current power information and following distance adjustment gear information.

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 invention belongs to the technical field of blind person assistance, and provides a blind person navigation assisting device which comprises a shell, a first rotating shaft is rotationally installed in the shell, the two ends of the first rotating shaft extend out of the two sides of the shell and are provided with wheels, and one side wall of the shell is open; the rotating power source is fixedly arranged in the shell, and an output shaft of the rotating power source is in power connection with the first rotating shaft; the stair climbing assembly comprises sliding blocks, a second rotating shaft is rotationally installed between the two sliding blocks, a rotating frame is fixedly arranged on the peripheral outer wall of the second rotating shaft, and when the sliding blocks slide into the shell, the second rotating shaft is in power connection with an output shaft of the rotating power source; and the navigation equipment mounting rack is fixedly arranged on the top surface of the shell. The navigation equipment is installed on the shell, a user makes contact with the shell and moves forwards, the shell transmits vibration of the road condition to a user receiving hand in real time, the road condition is better detected in combination with the navigation equipment, and the safety sense of the user is higher; the rotating frame has a step climbing function and is suitable for different road conditions.

The invention discloses a multi-communication integrated ship-shore cloud collaborative ship navigation auxiliary system and an information data interaction method. The system comprises a shore cloud system and a ship-end navigation aid system. The ships can communicate with each other through four communication modes of the ship end navigation aid system; the shore cloud system and the ship-end navigation aid system realize ship-shore communication through mobile internet communication or Tiantong satellite communication; the shore cloud system automatically pushes sailing safety auxiliary prompts such as ship crossing a bridge area and ship deviating from a port entering and leaving channel to the ship end navigation aid system through mobile internet communication. According to the invention, an information collaboration method between ships and between ships and shore cloud is realized, and emergency information, marine navigation safety information and hydro meteorological information can be directly communicated; sailing safety auxiliary reminding such as ship crossing a bridge area and ship deviating from a port entering and exiting channel is carried out; the system method can be applied to an intelligent port and navigation informatization supervision system and a ship fleet safety operation system.

The invention provides a propulsion device control system and a navigation assistance device. The host control system is provided with a navigation assistance device and a remote control device. A navigation assistance device is provided with: a first input unit that receives a command value for a propulsion parameter; and a calculation unit that calculates a command value for causing the current value of the propulsion parameter to follow the input command value. The remote control device is provided with: a second input unit that receives a command value for the rotational speed of the host; an output unit that outputs the command value calculated by the calculation unit in the sailing assistance mode and outputs the command value received by the second input unit in the normal sailing mode; and a control unit that controls the host. A host control system is provided with: an abnormality detection unit that detects an abnormality; and a holding unit that holds the command value output by the output unit when an abnormality is detected in the navigation assistance mode setting.

The invention relates to the technical field of ships, in particular to a U-shaped sail for ship navigation assistance. Comprising the steps that the sail type is of a left-right symmetrical U-shaped structure, and the new sail type designs sectional upper and lower edge curve piecewise function expressions, rounding connection parameters, the maximum thickness and position, material selection and machining process precision of a section, so that the sail type has better lift-drag characteristics and higher structural stability; and meanwhile, the device has the capacity of being adaptive to different ship types and complex marine environments, and can meet the use requirements of reducing fuel consumption of ships and enhancing the greenhouse gas emission reduction effect. The energy-saving efficiency of the sail can be improved, and the sail is a new-generation sail type with good aerodynamic performance.

The application discloses a complex environment recognition and intelligent interaction system for blind navigation, aiming to provide a safer and more personalized travel assistance for the blind or visually impaired. Based on the travel route planned by the map software, the YOLOv8 target detection algorithm with added CBAM attention mechanism is combined with the visual large model to recognize the complex scene, and the recognition result is transmitted to the large language model. The large language model generates active warning text or answers user questions according to the recognition result, and feeds back to the user in the form of voice, realizing intelligent interaction. At the same time, relying on the average step length calculated by the monocular vision technology and the autocorrelation analysis algorithm, the broadcast unit is converted from "meters" to "steps", improving the personalization of voice broadcast. The application combines front-end and back-end information transmission, introduces complex environment recognition, voice interaction and personalized guidance technology, and significantly improves the safety, interactivity and user experience of blind navigation assistance.

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.

The invention provides a propulsion device control system and a navigation assistance device. The host control system is provided with a navigation assistance device and a remote control device. A navigation assistance device is provided with: a first operation unit that accepts a selection operation for selecting a propulsion parameter and a first input operation for inputting a command value for the propulsion parameter; and a calculation unit that calculates a command value for the rotational speed of the host, the remote control device being provided with: a second operation unit that receives a second input operation for inputting the command value for the rotational speed of the host; and a command control unit that causes the current value of the rotational speed to follow the command value of the rotational speed calculated by the calculation unit during the navigation assistance mode and causes the current value of the rotational speed to follow the command value of the rotational speed corresponding to the second input operation during the normal navigation mode. The switching condition judgment unit judges switching conditions; and a mode control unit that executes at least one of a notification operation and a switching operation when a switching condition is satisfied.

A marker for indoor navigation, associated with information stored in a database in association with a key. The marker includes non-quadrilinear tessellating cells, a background surrounding the cells, and a frame surrounding the background, the frame being in a color that highly contrasts with the background. The plurality of cells is divided into four subsets, each being mutually exclusive from all the other subsets. A corner cells subset includes cells at the marker corners, which cells cover all the colors of the color palette. Cells in a first subset encode a numeric identifier, which can be decoded to access the information stored in the database. A second subset includes checksum cells encoding validation data. A third subset includes redundant cells, each matching, in its color, one of the corner cells.

The invention discloses an intelligent navigation auxiliary method based on target detection, scene recognition and face matching. The intelligent navigation auxiliary method comprises the steps of video data acquisition, data preprocessing, target detection, scene recognition, face matching, reasoning optimization and voice feedback. And acquiring a real-time video stream in front of the user by using the head-mounted camera device, and transmitting the data to the mobile terminal device. According to the invention, through fusion of YOLOv5n target detection and MobilenetV3 scene recognition, accurate object detection and environment understanding are realized, and the cognitive ability of blind users to the surrounding environment is improved. The MTCNN is combined with the Facenet, and a multi-angle face database is combined, so that the recognition precision under complex illumination and posture changes is improved, and the social interaction ability of the user is enhanced. Based on NCNN reasoning optimization, the calculation resource consumption is reduced, the equipment end reasoning efficiency is improved, the efficient operation of the model on the mobile end equipment is realized, the endurance time is prolonged, and the user experience is improved.

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.

The invention provides a propulsion device control system and a navigation support device. The purpose of the present invention is to reduce an operation load related to an increase in the load of a propulsion device. A navigation assistance device is provided with: a first operation unit that accepts a selection operation for selecting a propulsion parameter and a first input operation for inputting a command value for the propulsion parameter; and a first calculation unit that calculates a command value of the rotational speed for causing the current value of the propulsion parameter to follow the command value of the propulsion parameter. The remote control device is provided with: a second operation unit that receives a command value for the rotational speed; an acquisition unit that acquires a command value for the rotational speed of the first calculation unit in the sailing assistance mode and acquires a command value for the rotational speed of the second operation unit in the normal sailing mode; and a control unit that controls the propulsion device such that the current value of the rotational speed follows the command value of the rotational speed. The acquisition unit acquires a command value when the navigation assistance mode is set and the load increase mode is changed.

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).