Virtual-real POI tree-based management map expression method

Abstract

The invention discloses a virtual-real POI tree-based management map expression method. The method comprises the following step of: firstly defining a virtual-real POI tree as a tree-shaped structureset which has a virtual POI node and real POI mounting at the same time, wherein the virtual POI node is a node aggregated by same real POIs with one or more than one attribution, and each real POI represents a real signal point which is practically used, such as a sensor and a control node. The method has the beneficial effects that multi-dimensional contents of POIs and multilayer structures ofelectronic maps are combined, and the POIs are expressed by using virtual-real trees but not lists / arrays, so that map display problems of complicated POIs are fundamentally solved, and the speed andeffect of displaying the POIs are greatly improved; and each virtual POI node can look up the amount of all the managed or controlled real POIs and the quantities of different types, so that convenient supervision and statistic are realized, and the display speed is greatly improved.

Description

technical field [0001] The invention relates to the technical field of POI management maps, in particular, to a management map expression method based on virtual and real POI trees. Background technique [0002] POI (Point of Interest, point of interest) is one of the most important display parts of electronic maps, which is characterized by massive data and various types. How to quickly display and locate relevant POIs has become an important bargaining chip for the successful application of electronic maps. [0003] Defects of the existing electronic management map: the existing electronic management map regards POI as a basic point for searching and processing, without considering that the display of the map itself is actually hierarchical, and without considering the hierarchical structure of POI itself, it cannot Express mixed-level POI data, which is particularly important in vertical application fields, such as urban security systems and forestry alarm systems. Cont...

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Problems solved by technology

[0004] The purpose of the present invention is to combine the multi-dimensional content of POI and the multi-level structure of the electronic map itself, and propose a management map expression method based on virtual and real POI trees, using virtual and real POI trees instead of lists / arrays to express POIs, thereby fundamentally solving complex POI map display problem, greatly improved the speed and effect of POI display

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