Method for establishing topological connected model of urban underground electricity pipe network

Abstract

The present invention discloses a method for establishing a topological connected model of an urban underground electricity pipe network. The method comprises: step 1: collecting electricity pipe network spatial data, wherein spatial data of a topological relation model mainly originates from a map and document data; step 2: establishing an urban electricity pipe network topological relation model, and establishing an electricity pipe network base class and an element attribute information base class; step 3: establishing an electricity pipe network data model, and establishing a descriptive electricity pipe network, an electricity pipe network segment and an electricity pipe network node entity; and step 4: automatically generating an electricity pipe network entity and the electricity pipe network node entity by geometric topological relation checking, and classifying topological relation types to establish an electricity pipe network geometric topological model. According to the method for establishing the topological connected model of the urban underground electricity pipe network, the electricity pipe network data model is established after the electricity pipe network data are effectively analyzed by establishing the electricity pipe network geometric topological relation model; and a vector graph-based urban electricity pipe network topological relation model is formed by organic combination of the two models. Meanwhile, the method for establishing the topological relation can be generalized to other fields of applications of topological model-based GIS application systems.

Description

Technical field: [0001] The invention relates to a method for establishing a topological connection model, in particular to a method for establishing a topological connection model of an urban underground power pipe network. Background technique: [0002] The urban underground power pipeline network is mainly distributed in a three-dimensional cross network, forming a complex spatial system underground, which has the characteristics of centralized distribution and invisibility. The topological connectivity model is based on the spatial data model of power facilities, and it is oriented to various applications of the power pipeline network system, and expresses the topological connection relationship between power facilities. The topological connectivity model of urban underground power pipe network is based on the spatial data model of electric power facilities, expressing electric power facilities in an object-oriented manner. The establishment of the topology model of the...

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Problems solved by technology

Traditional GIS takes points, lines, and planes as the research objects, and takes the spatial position relationship between geometric objects as the basis of spatial topology connectivity analysis. When it is applied to the complex wiring of power pipeline network and the situation of many electrical equipment, it can neither correctly express the topological relationship , at the same time, the information redundancy is large and the update cycle is long

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