3results about How to "Realize the navigation function" patented technology

The application provides a kind of indoor global vision-based unmanned vehicle positioning method and device, the method comprises: step 1, visual sensor is fixed on indoor ceiling, and the ground environment image of the periphery of mobile robot in running is collected;Two two-dimensional code labels are arranged on the top of the mobile robot, and the mobile robot is identified by two two-dimensional codes;Step 2, the ground environment image obtained in step 1 is transformed by image processor Abnormal image is obtained by distortion correction;Step 3, the normal image is extracted to obtain feature points;More than two normal images with feature points captured by different vision sensors are matched;Step 4, the image is fused to obtain the wide-area panoramic image after splicing;Step 5, the pose information of the mobile robot is solved.The application can realize the control and tracking of mobile robot in wide-area complex indoor environment, and realize the accurate navigation of mobile robot.

The embodiment of the invention provides a rendering method and device, electronic equipment and a storage medium, and relates to the technical field of computers. The method comprises the following steps: displaying a current picture frame in response to a triggering operation for a navigation function; obtaining equipment performance parameters of the terminal equipment, if it is detected that the equipment performance parameters of the terminal equipment are reduced, reducing the model precision of an LOD model, and taking the LOD model with the reduced model precision as a target LOD model; and rendering a next picture frame of the current picture frame based on the target LOD model. According to the embodiment of the invention, the model precision of the LOD model is adaptively adjusted according to the equipment performance of the terminal equipment, so that the navigation function can be realized on the terminal equipment with different performances.

The invention belongs to the technical field of river transportation route planning, and discloses an offline waterway planning method and system, computer equipment and a medium. The method comprises the following steps: acquiring surveying and mapping channel data, and preprocessing the surveying and mapping channel data to obtain preprocessed first leg data; compressing the preprocessed first leg data to generate a first compressed packet; sending the first compressed packet to terminal equipment, and decompressing the first compressed packet at the terminal equipment to generate off-line leg data; thinning the off-line leg data according to a preset distance interval to generate second leg data, the second leg data and the off-line leg data having the same channel ID; performing waterway planning based on the second leg data to obtain a planned route, and determining a channel ID of the planned route; and retrieving data of a channel ID corresponding to the planned route in the offline route segment data to obtain navigation data which is used for a user to check on the terminal equipment. And the flexibility and reliability of waterway planning are effectively improved.