23 results about "Area navigation" patented technology

The invention relates to the technical field of intelligent transportation, in particular to a state space modeling method for ship ice region navigation decision model training, which comprises the following steps of: constructing a sea ice dynamic model, and estimating an unobservable sea ice state by using unscented Kalman filtering to obtain a hidden variable vector; inputting the hidden variable vector, the observable state information and the external force field code into a Transform encoder, and outputting future sea ice center position distribution; constructing a confidence collision avoidance domain of the time index according to future sea ice center position distribution, wherein the confidence collision domain is updated in a rolling manner along with time; taking observable state information, hidden variable vectors and transformation embedding of a confidence collision avoidance domain as reinforcement learning states, and adopting near-end strategy optimization to train a sea ice dynamic model; and obtaining a ship ice region navigation decision model based on a joint termination criterion of the verification set collision rate, the arrival rate and the strategy divergence. The method improves the strategy convergence stability and the ice region safety passing rate, and is suitable for autonomous navigation and simulation training of polar regions and high-latitude sea areas.

The invention provides an offshore area navigation safety control and optimization method, which comprises the following steps of: 1, acquiring multi-source observation data of an offshore navigation target, and preprocessing the multi-source observation data to obtain a space-time observation association diagram; 2, evaluating the dynamic credibility of each observation node by using a multi-modal consistency graph neural network; constructing an adaptive weighted factor graph model according to the obtained dynamic credibility, and solving a system state to obtain an optimal fusion track, a corrected environmental parameter and a posterior error covariance matrix; 3, constructing a regional risk field based on the optimal fusion track, the corrected environmental parameters and a posterior error covariance matrix; 4, on the basis of the regional risk field, a multi-target collaborative optimization model is constructed and solved, and navigation control parameters are obtained; and 5, executing the navigation control parameters, and performing adjustment and optimization by adopting multi-level closed-loop feedback to complete the navigation safety control and optimization of the offshore area.

The present application provides a kind of offshore area navigation safety control and optimization method, comprising: step 1, the multi-source observation data of offshore navigation target is collected, and pre-processing is carried out, to obtain the space-time observation correlation graph;Step 2, the dynamic credibility of each observation node is evaluated using multi-modal consistency graph neural network;According to the obtained dynamic credibility, an adaptive weighted factor graph model is constructed, and the system state is solved to obtain the optimal fusion track, the corrected environmental parameter and the posterior error covariance matrix;Step 3, based on the optimal fusion track, the corrected environmental parameter and the posterior error covariance matrix, a regional risk field is constructed;Step 4, based on the regional risk field, a multi-objective collaborative optimization model is constructed and solved to obtain the navigation control parameter;Step 5, execute navigation control parameter, and adopt multilevel closed loop feedback to optimize, complete offshore area navigation safety control and optimization.

A water-air integrated search and rescue system includes a flight power module, a navigation power module, a plurality of biomimetic unmanned boats, a drone, and an integrated control module. The integrated control module is configured to acquire weather information and determine whether to send a flight signal to the flight power module or to send a navigation signal to the navigation power module based on the weather information; the flight power module is configured to fly the drone to a search and rescue region after receiving the flight signal; the navigation power module is configured to navigate the drone to the search and rescue region after receiving the navigation signal; the integrated control module is further configured to control the drone to deploy the plurality of biomimetic unmanned boats; and the plurality of biomimetic unmanned boats are configured to carry out search and rescue work in the search and rescue region.

To provide a gaming machine that can perform effective presentations. [Solution] The system enables the execution of a prize-winning assistance effect that notifies the order of operations for stopping the reels by displaying multiple navigation number indicators on the display device, and a CZ special symbol effect that displays multiple special symbols on the display device. When both navigation number indicators and special symbols are displayed, in the left and right areas of the display area of ​​the display device, the navigation number indicators and special symbols are displayed so that they fit within the area, and in the middle area, the navigation number indicators and special symbols are displayed at different positions on the center line of the width of the middle reel, and are displayed so that they fit within the area.

The application provides a ship ice area navigation early warning method, device and electronic equipment, the method comprises the following steps: obtaining ship data, first ice condition data and second ice condition data, wherein the first ice condition data is obtained by satellite remote sensing technology, the second ice condition data is obtained by infrared and radar equipment in real time, then the ship navigation risk level is determined based on the ship data and the second ice condition data, the ship navigation risk level comprises a first level, a second level and a third level, when the ship navigation risk level is the first level, a normal navigation early warning is sent, when the ship navigation risk level is the second level, a maximum speed limit early warning is sent based on the ship data and the second ice condition data, when the ship navigation risk level is the third level, a path change early warning is sent based on the ship data, the first ice condition data and the second ice condition data; the satellite remote sensing technology, the infrared camera and the radar are combined, and real-time detection and early warning of complex conditions around the ship are realized.

The invention discloses a grid star map identification method and system based on weighted voting and geometric verification, and the method specifically comprises the steps: firstly, constructing a feature mode database containing all-day navigation stars, and storing the rasterized geometric mode of an adjacent star sky region of each navigation star and the inverse document frequency (IDF) weight of each grid unit in the database; secondly, extracting a plurality of brightest observation stars as main stars from an observation star map obtained by a star map sensor, and generating an observation geometric mode for each main star; inquiring an offline database by utilizing an observation mode, generating a candidate navigation star list, dynamically filtering low-credibility candidate stars through an adaptive threshold strategy, and sorting the candidate stars by adopting a mixed scoring function; and finally, carrying out pose consistency check on the plurality of candidate stars with the highest scores through a geometric verification method, and identifying the most reliable matching result. On the premise of ensuring the real-time performance, the grid star map recognition robustness and accuracy under various noises and interferences are improved.

According to the public interaction terminal for target area navigation, the guidance method, the medium, the program product and the electronic terminal provided by the invention, the route, the state prompt and the recommendation information are synchronously output through the same digital human image, so that the sense of information dispersion is reduced; information is screened in real time according to the target position of the user and the scene, irrelevant advertisement interference is avoided, and user acceptability is improved; according to the method, only temporary session data is stored and cleaned regularly, personal identities are not stored, user privacy is protected, and compliance interaction is realized. When the user inquires the destination, navigation information of step-by-step path guidance is provided for the user, the personalized recommendation content related to the target position is automatically generated according to the target position and the current scene state of the user, and the user experience is improved through the anthropomorphic digital image. Comprehensive guide information of way directing, reminding and recommending is output to the user in the form of voice broadcast and visual presentation.

1. The name of the design product: navigation bar of office collaboration graphical user interface of electronic device. 2. The use of the design product: an electronic device. 3. The design points of the design product: the graphical user interface, the solid line part is the design point of the present application, and the dotted line part is the conventional design. 4. The picture or photo that best shows the design points: design 1 front view. 5. Design 1 is designated as the basic design. 6. The use of the graphical user interface: the interface of the design product is the interface of the office collaboration function of the application software. The part claimed in the present design is the navigation bar part of the office collaboration graphical user interface. The design 1 front view is the display interface of the navigation bar, and the right side of the navigation bar is the page display area; the upper part of the navigation bar is the entry button of the application resident function, and the lower part of the navigation bar is the entry button of the temporarily opened page, and the user can click the entry button in the lower part of the navigation bar to switch the temporarily opened page according to the demand; the display content in the page display area is determined according to the selected page content according to the operation of the navigation bar. The interaction mode of designs 2 to 4 is the same as that of design 1. The "X" in each interface represents one or more of characters, numbers, letters and symbols. The number of "X" in each interface does not constitute a limitation on the number of characters, numbers, letters or symbols represented. The blank area in the circular or rectangular icon in each interface is the content display area.

The application belongs to the technical field of ship-bridge active collision avoidance early warning, and discloses a ship-bridge active collision avoidance early warning method based on space-time trajectory prediction and anomaly detection. The application designs an enhanced auto-encoder structure containing a space encoder and a dynamic behavior encoder, which can effectively extract potential feature expressions of trajectories. In combination with a dynamic time warping (DTW) distance and a time series clustering algorithm, unsupervised detection and classification of abnormal trajectories are realized. In addition, a high-risk abnormal trajectory dataset in a real bridge area navigation scene is constructed based on an NT-PRO5000 full-task ship maneuvering simulator, further enhancing the generalization ability and early warning practicality of the model. Experimental results show that the proposed method has high accuracy and stability in trajectory prediction and anomaly detection tasks, and can realize real-time identification and active early warning of ship-bridge collision risks, providing effective technical support for intelligent navigation and risk management of inland waterway ships.

The utility model relates to an in-field instant navigation device, and relates to the field navigation equipment field, the in-field instant navigation device comprises a shell and a fixed base, the shell is internally provided with a navigation assembly used for positioning, one side of the shell is provided with a mounting block, the mounting block is detachably connected with the fixed base, the fixed base is provided with a sliding groove, and the two sides of the mounting block are slidably connected with the interior of the sliding groove; a movable rod is arranged on the wall of the sliding groove, a groove is formed in the middle of the movable rod, the inner wall of the sliding groove and the outer side of the fixed base, a clamping assembly used for clamping the upper end of the movable rod is arranged in the groove, a limiting rod is arranged on the upper side of the movable rod and extends towards the upper side of the mounting block, and when the mounting block is located in the fixed base, the limiting rod is located on the upper side of the mounting block. The navigation device has the advantages that the placement stability of the navigation device is improved, and a user can take and place the navigation device conveniently.

The utility model discloses a kind of ice prevention devices on full-rotation rudder propeller of ice area navigation ship, belong to ship propeller technical field, including box, the box is provided with rudder column, the rudder column is connected with ship body;Icebreaking cone, the icebreaking cone quantity is multiple and evenly distributed in the front end of the box, to carry out icebreaking treatment;Hub, the hub is located in the front end of the box, a plurality of blades are provided on the hub, to push ship body;Guide piece, the guide piece is connected with the box by a plurality of reinforcing ribs, the guide piece is located between the icebreaking cone and the hub, the guide piece is horn shape structure body.The utility model does not need to use net-shaped protective structure to protect blade, adopts icebreaking cone, reinforcing rib and guide piece to be arranged in echelon in navigation direction, and additionally add icebreaking ice knife, effectively avoid the phenomenon of ice jam, realize the function of icebreaking, ice separation and lateral protection.

1. Name of the product in this design: Graphical User Interface for Scenic Area Navigation in Electronic Devices. 2. Purpose of this design: for running programs, displaying information, or communicating. 3. The key design feature of this product lies in the graphical user interface on the screen. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Since the display screen panel is a conventional design, the rear view has no design highlights and is omitted; since the display screen panel is a conventional design, the left view has no design highlights and is omitted; since the display screen panel is a conventional design, the right view has no design highlights and is omitted; since the display screen panel is a conventional design, the top view has no design highlights and is omitted; since the display screen panel is a conventional design, the bottom view has no design highlights and is omitted. 6. Purpose of the graphical user interface: This graphical user interface is used for navigation of scenic spots within the scenic area. 7. Human-computer interaction method of graphical user interface: Swipe up in the main view to jump to interface change state diagram 1; in interface change state diagram 1, click the "Qingyuan Navigation" button to enter interface change state diagram 2; in interface change state diagram 2, click the "Xiawan Ancient Temple" tab to jump to interface change state diagram 3; in interface change state diagram 3, click the "Chimelong Paradise" tab to jump to interface change state diagram 4.

1. The name of the design product: map data collection graphical user interface for electronic device. 2. The use of the design product: the design product is used for 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 electronic device is a conventional design, and the rear view, bottom view, top view, left view and right view are omitted. 6. The use of the graphical user interface: the product is used to display information related to map data. In the front view, the left side is a map display interface that displays map images; the right side is an operation interface, in the initial state, the "complete collection", "cancel collection" and P1, P2, P5 area key point buttons are in an unselectable state; the top is a region navigation bar, including each sub-area and the main road. After selecting the target vehicle through the drop-down menu in the operation interface in the front view and clicking "start collection", it changes to interface change state figure 1, the left side map display interface changes to display the expected running track, actual running track and real-time position of the target vehicle, and the buttons of "complete collection", "cancel collection" and each area key point in the right side operation interface are in a selectable state; clicking the "P1" button in interface change state figure 1 changes to interface change state figure 2, the left side map display interface changes to display the map images around P1 point, and the right side operation interface adds a "point supplement" window for updating the position of P1 point; clicking the "main road" in the region navigation bar in interface change state figure 2 changes to interface change state figure 3, the left side map display interface changes to display the map images of the main road and the related information of the main road, and the right side operation interface deletes the area key point buttons and the "point supplement" window.

The invention relates to a regional navigation ground station site selection method fusing meta-heuristic and adaptive retrieval, and belongs to the field of regional navigation. According to the method, the intervisibility analysis model and the intelligent optimization algorithm are deeply coupled, the intervisibility condition between the ground station and the target point is subjected to full-scene simulation by constructing the three-dimensional terrain digital elevation model and combining the Bresenham algorithm, non-intervisibility candidate point positions are removed in real time in an algorithm search space, and the defect that the intervisibility evaluation of a traditional method is insufficient is fundamentally overcome. On the algorithm optimization level, a meta-heuristic algorithm and a self-adaptive retrieval mechanism are fused to improve the site selection efficiency: through cooperation of a sine and cosine optimization algorithm and the self-adaptive retrieval mechanism, a self-adaptive adjustment mechanism is constructed, and the local optimization process is accelerated while the global search capability is maintained; according to the terrain and the candidate point distribution density, the search step size and the search range are intelligently adjusted, and the working efficiency can be effectively improved when the large-scale site selection problem is processed.

The invention relates to the technical field of automation control, in particular to a shoveling operation control method and system applied to unmanned loading equipment. The method comprises the steps of obtaining a current task instruction sent by instruction sending equipment; determining a target task type according to the current task instruction; the target task type comprises one of a loading operation task, a turning operation task and a transfer operation task; and determining a target working area according to the target task type, and performing area navigation on the unmanned loading equipment according to a preset tabu search algorithm and an area identifier corresponding to the target working area so as to control the unmanned loading equipment to execute a target operation corresponding to the target task type. Navigation control is carried out on the unmanned loading equipment in a taboo search mode according to the area identifier of the working area, high-precision positioning information does not need to be obtained, the complexity of a navigation system is reduced, the stability of navigation control is improved, and then the operation quality of shoveling operation of the unmanned loading equipment is improved.

This invention provides a point cloud-based navigation method, system, device, and storage medium for quay crane areas. The method includes the following steps: navigating to the surrounding area of ​​the quay crane area using a first navigation path based on GPS positioning data; continuously scanning at least a portion of the quay crane area in the surrounding area to establish point cloud map data of cargo ships within the quay crane area; detecting GPS positioning signals in real time and matching point cloud objects in the point cloud map data with the GPS positioning data; generating a second navigation path based on the completed point cloud map data when the GPS positioning signal does not meet a preset signal strength threshold; and performing loading and unloading operations with the quay crane based at least on the second navigation path. This invention can fully utilize the edge information of cargo ships to achieve self-positioning of vehicles with six degrees of freedom, greatly improving the accuracy and safety of truck and quay crane alignment, even when cargo ships are docked at the quay and GPS positioning fails.

The application discloses an ice region navigation drag suction dredger rake arm anti-collision device and a use method thereof, which comprises opposite protection structures installed on the rake arm, a track is arranged between the opposite protection structures on the two sides, a telescopic propulsion device is installed at one end of the track, a positioning pile is installed at the other end of the track, a sliding block is connected to the end of the telescopic propulsion device close to the track, and a protection device is fixed to the top of the sliding block; the telescopic propulsion device comprises a section arm and a telescopic hydraulic cylinder, and a plurality of section arms are connected to the outer side of the telescopic hydraulic cylinder, and the telescopic movement of the plurality of section arms is realized by the telescopic hydraulic cylinder. The protection device can prevent the sea ice from directly contacting the rake arm, and the track and the positioning pile can make the device have sufficient flexibility and can adjust the positions of the overall device and the protection device; the cooperation of the plurality of components can not only effectively reduce the collision force of the sea ice on the ship, but also has sufficient flexibility, and the corresponding positions can be selected according to different situations, so that the rake arm structure is effectively and flexibly protected.

The invention discloses a navigation signal broadcasting system based on a microwave two-way time synchronization technology, which belongs to the field of navigation positioning communication and comprises at least four ground station units arranged in a coverage area, and each unit comprises a ground station host, a timing system receiving and transmitting antenna and a navigation signal transmitting antenna. The timing receiving and transmitting antenna establishes a bidirectional microwave link between a master station and a slave station, a ground station host realizes inter-station time synchronization and pseudo-range measurement through the link by adopting a bidirectional one-way pseudo-range measurement technology, generates a navigation message based on a synchronization result, and broadcasts the navigation message through the navigation signal transmitting antenna after modulation. And the navigation terminal in the area can still realize positioning when the satellite signal is unavailable. The ground station host adopts a modular portable design, and has high environmental adaptability. According to the invention, the problem that the terminal cannot be positioned in a satellite signal rejection environment is solved, and the independent, reliable and rapidly deployable regional navigation capability is provided.

The invention provides a high-latitude transfer alignment algorithm based on a factor graph, and belongs to the technical field of high-precision navigation. The invention aims to solve the problem that the traditional Kalman filtering method is difficult to deal with the strong nonlinearity and parameter coupling problem of high-dimensional regional navigation, so that the precision and robustness of transfer alignment are reduced. The method comprises the following steps: S1, modeling a high-latitude transfer alignment problem into a time sequence factor graph model; s2, calculating the posterior distribution probability of the system according to the time sequence factor graph model; s3, according to the posterior distribution probability, obtaining an error state estimation value of the sub inertial navigation relative to the main inertial navigation through maximum posterior estimation; and S4, correcting the navigation parameters of the sub inertial navigation according to the error state estimated value, and completing transfer alignment in the high-latitude environment.

A mobile robot is configured for operation in a commercial or industrial setting, such as an office building or retail store. The robot can patrol one or more routes within a building, and can detect violations of security policies by objects, building infrastructure and security systems, or individuals. In response to the detected violations, the robot can perform one or more security operations. The robot can include a removable fabric panel, enabling sensors within the robot body to capture signals that propagate through the fabric. In addition, the robot can scan RFID tags of objects within an area, for instance coupled to store inventory. Likewise, the robot can generate or update one or more semantic maps for use by the robot in navigating an area and for measuring compliance with security policies.

The application discloses a method for automatically extracting flight procedure data from a navigation chart. It belongs to the field of electronic digital data processing. The method comprises the following steps: setting a navigation chart layout template; obtaining a navigation chart file mark text; extracting a waypoint and calculating a coordinate conversion relationship; extracting a line segment and converting the line segment into a track segment; assigning a value to the track segment and combining the track segment into a flight track; and generating a flight track object and converting the flight track object into an XML file. The method can automatically extract a flight procedure track from a terminal area navigation chart to generate a digital flight procedure, thereby providing data support for applications such as digital navigation charts.

Provided in the present invention are a point-cloud-based method, system and device for navigation in a quay crane area, and a storage medium. The method comprises the following steps: traveling to a peripheral area of a quay crane area on the basis of a first navigation path based on GPS positioning data; performing in the peripheral area continuous spatial scanning on at least part of the quay crane area, establishing point cloud map data of a cargo ship in the quay crane area, detecting a GPS positioning signal in real time, and matching a point cloud object in the point cloud map data with the GPS positioning data; when the GPS positioning signal does not meet a preset signal intensity threshold, generating a second navigation path on the basis of the completed point cloud map data; and performing a loading and unloading operation with a quay crane at least on the basis of the second navigation path. By means of the present invention, in a scenario where a cargo ship is docked at a quay and GPS positioning fails, edge information of the cargo ship can be fully used to implement six-degrees-of-freedom self-positioning of a vehicle, thereby greatly improving the accuracy and safety of alignment of a container truck with a quay crane.