13results about How to "Improve navigation efficiency" patented technology

The invention relates to a distributed intelligent rice transplanter cluster navigation method based on deep reinforcement learning and speed obstacles, which comprises the following steps: acquiring a reciprocal speed obstacle and a speed obstacle vector, inputting the reciprocal speed obstacle and the speed obstacle vector into a BiLTSM network model, and acquiring an environment perception vector; the BiLTSM network model is obtained through training of a training set; and combining the environment perception vector with an ontology perception measurement value to generate an observation space, and setting a reward function for iteratively updating a multi-intelligent-vehicle obstacle avoidance strategy so as to optimize driving control of an individual level in an intelligent vehicle cluster and generate an optimal navigation scheme. The method still faces many challenges in application in the agricultural environment, the defects in the aspects of environment state representation, action mapping and reward design are overcome, and the problem of multi-machine collision avoidance in the complex dynamic environment is effectively solved.

The invention provides a robot navigation method and device based on edge and cloud cooperative computing. The method comprises the following steps: acquiring real-time environment sensing data through a body sensor of the robot; executing real-time positioning and map construction, and generating a local obstacle avoidance instruction; generating a task unloading decision according to the task division strategy, the current network state and the server resource state; and fusing the optimized global map, the long-term trajectory prediction result and the local obstacle avoidance instruction to generate a global comprehensive navigation strategy of the robot. According to the method, robot navigation tasks are intelligently divided and dynamically unloaded through an innovative edge and cloud cooperative computing framework, the low delay of the edge side and the powerful computing power of the cloud are fully utilized, and the core bottleneck that the computing power of a robot body is limited can be effectively solved. The overall delay of the navigation system is obviously reduced, and the navigation efficiency, safety and intelligent level in a large complex scene are improved.

The application relates to the technical field of computer vision, and provides a high-stability virtual object position display method and device. In a mapping stage, the object structure of a virtual scene is acquired, and an exception handling boundary is established; in the exception handling boundary, a virtual object in the virtual scene is regarded as a general engine object, coordinate data corresponding to the general engine object is acquired based on the object structure, and a path graph is drawn according to the coordinate data; the running state of a data processing process in the exception handling boundary is monitored, if running exception is detected in any processing period, the exception data corresponding to the running exception is discarded; in a virtual scene running stage, the position information of the virtual object is acquired in the exception handling boundary, the position information is matched with the path graph, the relative position of the virtual object in the path graph is determined, and the relative position of the virtual object in the path graph is displayed. Runtime exceptions in memory reading or drawing processes are effectively intercepted and isolated.

The invention relates to a navigation interaction method and device, electronic equipment, a storage medium and a program product. Comprising the steps that in response to a voice navigation instruction initiated by a user, a navigation instruction text recognized from the voice navigation instruction is obtained, and the navigation instruction text comprises a place description text; acquiring a historical navigation record, related to the navigation instruction text, of the user; acquiring a navigation preference text of the user; performing text generation according to the navigation instruction text, the historical navigation record and the navigation preference text to obtain a navigation recommendation statement for navigating to a recommended navigation site related to the site description text; outputting the navigation recommendation statement; and in response to a received voice confirmation instruction of the user for the navigation recommendation statement, navigating by taking the recommended navigation place as a navigation destination. The method can improve the navigation efficiency.

The utility model relates to the technical field of water surface garbage cleaning, and particularly provides a water surface pollutant cleaning device which comprises a ship body, a power system arranged at the tail part of the ship body, a solid garbage salvaging device arranged at the front part of the ship body, and a control device, a conveying mechanism, a lithium battery and a solid garbage collecting box which are arranged on the ship body, an oil stain separation device for treating oil stains on the water surface is further arranged on the ship body; compared with the prior art, due to the arrangement of the solid garbage salvage device and the oil stain separation device, solid garbage can be collected, stored and salvaged, oil and water can be settled and separated under the action of gravity, so that oil stain is accurately sucked into the oil storage hopper, and the oil stain separation effect is improved. Therefore, solid garbage and oil dirt in the water surface are synchronously cleaned, the cleaning effect of the water surface environment is greatly improved, efficient cleaning of water surface pollutants is facilitated, and then treatment of the water surface environment is facilitated.

This invention discloses a zero-shot navigation method based on dynamic navigation chains and multi-dimensional value maps, comprising the following steps: acquiring natural language commands of different navigation types and collecting multimodal perception data; converting the natural language commands into a unified chain-like planning paradigm, and updating the action sequence, landmark, and target object relationship co-occurrence probability list of the navigation chain; generating scene point clouds and navigable maps, and constructing semantic value maps, action value maps, trajectory value maps, intuitive value maps, and relationship co-occurrence value maps; performing pattern matching on the action sequences of the navigation chain, triggering a swing suppression mechanism when a swing state is detected, and performing differentiated action constraints and action value map assignment updates according to the swing sequence type; generating a global decision value map by weighted linear superposition of various value maps; obtaining the next navigation target point by maximizing the value of the global decision value map, and planning a feasible trajectory until a preset termination navigation condition is reached. This invention can improve navigation efficiency and accuracy.

The utility model discloses an intelligent interactive walking assisting robot for a global scene, and relates to the technical field of artificial intelligence, robot technology and intelligent home furnishing, the intelligent interactive walking assisting robot comprises a chassis module, the upper end of the chassis module is respectively provided with an intelligent seat module and a mechanical arm module, and the chassis module comprises a chassis frame body; the intelligent seat module comprises a getting-up mechanism, a backrest adjusting mechanism and an interaction control mechanism; universal wheels are arranged at the four end corners of the bottom end of the chassis frame body, fixing frames are symmetrically installed at the center of the bottom end of the chassis frame body, a hub motor is fixed to the inner side of each fixing frame, and a driving wheel is fixed to the output end of each hub motor; the getting-up mechanism comprises an electric lifting column; the backrest adjusting mechanism comprises a cushion. The intelligent interaction walking assisting robot for the global scene provided by the utility model integrates the functions of voice recognition, stable movement and visual interaction, and aims to provide comprehensive intelligent service for home life.

The invention discloses a green ship energy efficiency and emission collaborative optimization method and system, and relates to the technical field of green ship energy efficiency management, and the method comprises the steps: deploying a sensor at a ship engine, collecting an engine signal, calculating the power and fuel flow rate of the engine, synchronously obtaining ship navigation data, and dividing leg space grids, calculating fuel consumption and emission of the legs and the space grids; a navigation mechanism model is constructed according to ship navigation data, model parameters are calibrated through a least square method, monitoring stations are selected to obtain observation data, the observation data are mapped into a discharge observation matrix, an uncertainty matrix is constructed, a source contribution matrix and a source component spectrum matrix are solved through positive definite matrix factorization, and ship source contribution concentration is calculated. And obtaining a ship source contribution space field based on the space convolution model. According to the method, closed-loop optimization of a ship operation strategy from an emission source to receptor response is realized, a high-precision ship contribution space field and an optimal sailing instruction are provided, and the ship sailing energy efficiency is remarkably improved.

The invention discloses a data index customized display system and method based on a graph editing engine, and relates to the technical field of data visualization and management, and the system comprises a business map module which is used for macroscopically displaying the process classification of company data assets and providing an entrance for jumping to a data map; the data map module is used for displaying a data asset structure and an association relationship in a specific business process in detail and supporting deep navigation and data viewing; and a graph editing engine module. According to the data index customized display system and method based on the graph editing engine, the problems that in an existing data asset visualization technology, a data asset panoramic structure cannot be visually displayed, data navigation and retrieval are inconvenient, interaction experience is poor, data dynamic updating is not timely and the like are solved, asset panoramic display is achieved, and the user experience is improved. The user can conveniently and quickly carry out data navigation and retrieval, the interaction experience of the user is improved, and deep data management and operation work of the system user is supported.

The application provides a navigation interaction method and device, a vehicle-machine interaction system and a vehicle. The method comprises the following steps: acquiring area information of each passing point in a current navigation path; determining the interest degree of a driver to each passing point based on the driver information and the area information of each passing point; the driver information is determined based on the historical driving data of the driver and / or the navigation operation data of the driver; and interacting with the driver based on the interest degree of the driver to each passing point. The navigation interaction method and device, electronic equipment and storage medium provided by the application can quickly and accurately determine the interest degree of the driver to each passing point through the driver information and the area information of each passing point, so as to realize personalized navigation interaction for the driver based on the interest degree of the driver to each passing point. The application not only can reduce the interaction communication cost, optimize the user experience, but also can improve the navigation efficiency and ensure the driving safety.

The utility model discloses a hydrofoil for a water vehicle, which comprises a front wing structure, a rear wing structure, a first assembly part and a second assembly part, a first support part is arranged in the front wing structure, the front wing structure is U-shaped, adjacent rear wing structures are symmetrically arranged, the rear wing structure is provided with a second support part, the rear wing structure is C-shaped, and the first assembly part and the second assembly part are symmetrically arranged. The first assembly part is located on the front wing structure and used for assembling and fixing the front wing structure. The front wing structure, the rear wing structure, the first supporting piece, the second supporting piece and the second assembly piece are matched with one another, so that modular assembly design is facilitated, the transportation size is reduced, the field assembly efficiency is improved, and the hydrodynamic performance optimization requirement of high-speed ships is met; meanwhile, by arranging the first supporting piece and the second supporting piece, the structural stability is enhanced, the sailing efficiency is improved, the resistance is reduced, the wave influence is reduced, the structure is simple, and manufacturing and maintenance are easy.

The utility model provides an electric motorboat which comprises a shell, an electric motor, an electric motor, an electric motor, a power source, a power source and a power source. The front baffle is arranged at the front edge of the accommodating cabin and is mounted on the shell; the mounting seat is arranged in the operation cabin and used for mounting and fixing the steering wheel assembly; the battery box assembly is placed in the cabin and used for providing power for work of the flow channel spraying and pushing assembly; the flow channel spraying and pushing assembly is arranged on the lower surface of the rear end of the shell and used for providing power for advancing or steering of the electric motorboat; and the control box is used for adjusting the working state of the flow channel spraying and pushing assembly, and the control box is arranged in the cabin or a control box containing cabin at the rear end of the cabin. According to the electric motorboat, advancing and steering capacity without traditional fuel is achieved, environmental pollution is reduced, a cleaner and sustainable power source is provided, and the electric motorboat is easy to operate and reliable to control.

This invention discloses a method for assisting ships in passing through navigation tunnels. It includes the following steps: Step 1: retracting the wheeled drive mechanism; Step 2: moving the towing platform to the waiting ship; Step 3: extending the wheeled drive mechanism; Step 4: the bow of the ship entering the concave structure of the towing platform; Step 5: connecting the towing platform to the bow mooring bollard or hull of the ship; Step 6: activating the wheeled drive mechanism to tow the towing platform and ship; Step 7: moving the towing platform to the exit of the navigation tunnel and disconnecting the towing platform from the bow of the ship; Step 8: the towing platform exiting the channel and waiting for oncoming ships in the double-lane navigation tunnel; Step 9: the oncoming ship passes through by its own propulsion; Step 10: the towing platform connecting with the oncoming ship and towing it through the tunnel; Step 11: the towing platform returning to the starting point of the navigation tunnel. This invention has the advantage of enabling ships to pass through long-distance navigation tunnels under conditions of large water level fluctuations.