Method and device for constructing road network topology structure
A technology of topology structure and construction method, applied in the direction of structured data retrieval, geometric CAD, geographic information database, etc., can solve the problems of slow road network topology construction and inability to construct road network topology
Active Publication Date: 2021-01-12
DITU (BEIJING) TECH CO LTD
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[0004] In view of this, the purpose of this application is to provide a method and device for constructing a road network topology, which can establish a preset area through the static attribute information, upstream and downstream routes, and shape information of each road network node within each preset time period The spatio-temporal road network topology solves the problems existing in the prior art that the construction speed of the road network topology is slow, and it is impossible to construct a spatio-temporal road network topology that can reflect the change information of the road network topology over time, and achieves an improvement in the construction of the road network. Topological efficiency, the effect of accurately constructing the spatio-temporal road network topology structure including the change information of road network topology and time
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[0069] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the appended The figures are only for the purpose of illustration and description, and are not used to limit the protection scope of the present application. Additionally, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented in accordance with some embodiments of the application. It should be understood that the operations of the flowcharts may be performed out of order, and steps that have no logical context may be performed in reverse order or concurrently. In addition, those skilled in the art may add one or more other operations t...
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The invention provides a method and a device for constructing a road network topological structure, and the method comprises the steps: building attribute topological information of each road networknode in each preset time period based on the static attribute information of each road network node in each preset time period and the upstream and downstream road network node information; based on the attribute topological information and the shape information of each road network node in each preset time period, establishing an attribute list and a shape list of each road network node; and finally, based on the attribute list and the shape list of each road network node, establishing a space-time road network topological structure of the preset area. According to the technical scheme, the space-time road network topological structure of the preset area is established through the static attribute information, the upstream road information, the downstream road information and the shape information of each road network node in each preset time period, the efficiency of establishing the road network topology is effectively improved, and the space-time road network topological structurecomprising the change information corresponding to the road network topology and the time can be accurately established.
Description
technical field [0001] The present application relates to the technical field of data analysis and processing, in particular, to a method and device for constructing a road network topology. Background technique [0002] Spatio-temporal trajectory mining can obtain the running trajectory data of the target object, which is used to monitor the target object. In the space-time trajectory mining, it is necessary to rely on the road network topology data. In reality, the change of the road network topology is relatively frequent. Up-convert information for a longer period of time. [0003] At present, when constructing the road network topology, it is based on the road network data at a certain moment or in a certain short period of time, which cannot reflect the transformation of the road network topology over a long period of time, so it cannot meet the requirements of the space-time trajectory. The demand for mining, and the efficiency of constructing the road network topol...
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IPC IPC(8): G06F16/29G06F30/18
CPCG06F16/29
Inventor温翔柴艺
OwnerDITU (BEIJING) TECH CO LTD