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253 results about "Time map" patented technology

Robot navigation positioning system and method

The invention discloses a robot navigation positioning system and method, which are used for map construction, positioning and path planning of a robot. The method comprises the following steps: S100,positioning is carried out, in the positioning step, the robot detects surrounding environment information through multiple sensors, and later, based on an adaptive particle filtering SLAM algorithmand in match with different odometers, real-time map construction and positioning are completed; and S200, path planning is carried out, in the path planning step, a two-phase hybrid state A*-based path planning algorithm is adopted, after a path length and the number of extended nodes are obtained when path planning is carried out on a rasterized map, a higher rasterized map is obtained through parsing and extension, and the acquired path length and the acquired number of extended nodes are used as input of fuzzy reasoning, a heuristic weight is obtained through fuzzy reasoning and is used asinput of search of a second stage, and path planning is performed on a higher rasterized map. The system and the method disclosed in the invention can not only adapt to different environments but also can perform dynamic path planning.
Owner:BEIJING ORIENT XINGHUA TECH DEV CO LTD

Unmanned aerial vehicle real-time map reconstruction method

The present invention provides an unmanned aerial vehicle real-time map reconstruction method. By applying an unmanned aerial vehicle, the three-dimensional maps of the surrounding environment of the unmanned aerial vehicle are obtained, and the own positioning of the unmanned aerial vehicle is realized. According to the method, the unmanned aerial vehicle flies in the unknown airspace, and on the condition that the own position of the unmanned aerial vehicle is not clear, the own positioning of the unmanned aerial vehicle is obtained and the three-dimensional maps are constructed by detecting and comparing the environmental information, and extracting and matching the feature information of the environment. The unmanned aerial vehicle real-time map reconstruction method also comprises the geographic information fusion and an image mosaic technology. The unmanned aerial vehicle real-time map reconstruction method of the present invention can be applied to the fields, such as the battlefield demands, for example the unmanned aerial vehicle autonomous flight and attack, the disaster emergency rescue, such as fire hazard, earthquake, flood, etc., the unmanned aerial vehicle security administration and monitoring, etc. Compared with the conventional method, and according to the present invention, a position drifting amount, an angle drifting amount or an absolute error is above the average, and more environmental information is obtained. Moreover, compared with a full-density method, an experimental precision of the method still can reach a usage standard, and the method can be operated on a CPU directly and is good in real-time performance.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Mobile phone information based section speed calculation method

The invention relates to a mobile phone information based section speed calculation method. The method is used for calculating the average speed information of a vehicle at each section through the analysis and the treatment of mobile phone information and the combination of traffic road position and direction. The key points of calculating the section average speed lies in massive data processing and precise positioning of a mobile phone user in a movement process. The problems are solved through two-stage three-time map matching in the invention. The map matching at the first stage comprises the following step of: matching Cell with sections, and the map matching at the second stage comprises the following steps of: establishing a subordination relationship of mobile phone data points and the sections through matching user data points with the sections two times, finally calculating the traffic speed of each user on the sections by using the Cell position in which continuous data points are located and the time, removing part of abnormal speeds in the traffic speeds, summing the traffic speeds and averaging the sum to obtain the average speed of each road. In the invention, the large amount of calculation caused by directly matching each data point with the sections is avoided, and the calculation efficiency is improved. The accuracy of the mobile phone data and the sections is improved through a proximity principle and a direction consistency principle.
Owner:BEIJING UNIV OF TECH +1

Control method of unmanned tower crane and intelligent system of unmanned tower crane

The invention discloses a control method of an unmanned tower crane and an intelligent system of the unmanned tower crane. The control method of the unmanned tower crane comprises following steps: S1,constructing a real-time map of the position where the tower crane is located; S2, generating a transportation track of goods and materials according to the starting point and end point of transported goods and materials in the real-time map; and S3, transporting the goods and materials by the tower crane according to the transportation track. The control method of the unmanned tower crane is applied to the intelligent system of the unmanned tower crane, the real-time map of the position where the tower crane is located is constructed, the transportation track of goods and materials is generated according to the starting point and end point of the transported goods and materials in the real-time map, the goods and materials are transported by the tower crane according to the transportation track, so that intelligentization of transportation of the goods and materials by the tower crane can be realized, manual operation is reduced, human errors possibly caused by the manual operation are avoided, and safety and efficiency of transportation of the goods and materials are improved.
Owner:ELITE ARCHITECTURAL CO LTD

System and method with which real-time map is capable of being displayed and shared in mobile terminal

The invention relates to a system and a method with which a real-time map is capable of being displayed and shared in a mobile terminal, and particularly relates to a system and a method with which real-time geographical location information is mutually shared, wherein the system and the method with which the real-time geographical location information is mutually shared are embedded in a mobile terminal. The system and the method with which the real-time geographical location information is mutually shared have the advantages that the system and the method with which the real-time map is capable of being displayed and shared in the mobile terminal are provided, and real-time geographical location information share can be achieved among a plurality of users. The system and the method with which the real-time map is capable of being displayed and shared in the mobile terminal comprise a service terminal and at least one mobile intelligent terminal , wherein the service terminal is connected with the mobile intelligent terminal through a network, the service terminal comprises a transceiver module, a map module and a cutting module, and the mobile intelligent terminal comprises a global position system (GPS) positioning module, a map control module, a map display module and a transceiver module. According to the system and the method with which the real-time map is capable of being displayed and shared in the mobile terminal, the vector map of location can be displayed in the customer mobile intelligent terminal, the vector map of location can be shared with sharers, and the system and the method with which the real-time map is capable of being displayed and shared in the mobile terminal are not affected by phone models and functions as long as the mobile phone has GPS function.
Owner:青岛联合汇信科技有限公司
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