3results about How to "Short path length" patented technology

This application provides a method for recommending travel routes, an in-vehicle system, and a storage medium, relating to the field of in-vehicle tourism service technology. The method can obtain the route length, travel time, required travel cost, and average experience score of all attractions for each travel route. Then, for each travel route, it determines a first sub-rating corresponding to the route length, a second sub-rating corresponding to the travel time, a third sub-rating corresponding to the travel cost, and a fourth sub-rating corresponding to the average experience score. A weighted average of the first, second, third, and fourth sub-ratings for each travel route is taken to obtain a recommended rating for each travel route. Based on the top N% of travel routes ranked by their recommended ratings, recommended routes are output, which can balance short route length, short travel time, low travel cost, and high average experience score, achieving a balance between the user's itinerary, travel time, cost, and overall experience.

The application provides a positive electrode sheet, a battery and an electric device. The positive electrode sheet comprises a lithium iron manganese phosphate material, the X-ray crystal diffraction spectrum of the positive electrode sheet comprises a characteristic peak of a (200) crystal face with 2θ of 17.2±0.5° and a characteristic peak of a (020) crystal face with 2θ of 29.7±0.5°; the average stacking size D(200) on the (200) crystal face, the average stacking size D(020) on the (020) crystal face and the average particle size D 平均 satisfy the following relationships: D(200) / D(020)≥1.15 and 10%≤D(200) / D 平均 ≤30%. The application makes the positive electrode sheet have high lithium ion diffusion rate and cycle stability by special crystal structure and particle size limitation, and further makes the battery have excellent cycle performance and rate performance.

The present invention provides a method for obtaining an optimal path of optical resources based on an improved ant colony algorithm, which specifically comprises the following steps: S1: constructing an authorized undirected graph G=(V, E) according to an optical resource network, wherein V is a set of nodes of the undirected graph, and the nodes include a starting point node, a destination point node and a topology graph node of a plurality of optical cross boxes corresponding to the optical resource network, and E is a set of arcs of the undirected graph, representing an optical cable connected between two nodes; S2: utilizing an improved ant colony algorithm based on the Metropolis criterion to search and calculate on the undirected graph G to obtain a plurality of current ant colony optimal paths and corresponding target fitness values, and simultaneously updating the pheromone of the current ant colony optimal path; S3: selecting different half-distance cross optimization strategies to optimize the current ant colony optimal path, obtaining optimized optimal paths focusing on different optimization types and corresponding minimum target fitness values, and simultaneously updating the pheromone of the optimized optimal path.