Method for accurately positioning digital map

Abstract

The invention relates to a method for accurately positioning a digital map, which comprises the following steps: (1) an original point is arranged on the map; (2) a longitudinal direction and a horizontal direction are used as reference axes through the original point; (3) specific spaces are arranged on the reference axes; and (4) four frames of the map are provided with codes in a direction and number mode. The Method for accurately positioning a digital map can realize the uniqueness, the accuracy and the rapidness for querying addresses.

Description

technical field [0001] The invention relates to a method for precise positioning on a digital map. Background technique [0002] Traditionally, a map is a map in which the natural and social phenomena on the surface of the earth are selectively reduced on a plane drawing in accordance with certain geographical laws and with prescribed schematic symbols and colors. Such as ordinary maps, thematic maps, topographic maps of various scales, image maps, three-dimensional maps, etc. [0003] The divisions and codes of traditional city maps are all produced by natural terrain and geography. Its expressions for addresses, streets, and regions are described in the form of language and numbers. The relationship between addresses and addresses is based on language and characters, and it has no inherent mathematical logic connection. On ordinary city maps, areas are irregular and not coded numerically. [0004] Now let's take the city map of Beijing as an example to analyze the proce...

AI Technical Summary

Problems solved by technology

[0008] 2. For streets or addresses that are not marked on the city map, users cannot find them on the map at all

[0010] 3. The problem of inaccurate address positioning in ordinary city maps

[0012] Taken together, these three major defects in traditional city maps have caused people to encounter many problems in the process of querying, locating, and navigating city addresses, and spent a lot of time and energy!

[0013] 4. Problems such as incomputability between addresses

would have disastrous consequences for the encoding of local city digital addresses

[0017] Second: The scale of the coordinate system is not fixed and not uniform

[0018] For the urban plane coordinate map, the scale index of the map cannot be changed at will, and the change will cause the digital code value of the corresponding address to change

[0019] Third: Mathematical abstraction and mathematical coding confusion of regions and addresses

Some are represented by binary coordinates, some are represented by multi-dimensional coordinates, and some are added with signs, letters, etc. In short, there is no unified standard and no unified system, so it is impossible to carry out large-scale promotion and application

[0021] All in all, the current various types of city maps do not solve the problem of "not found, not sure, difficult to find" in practical applications.

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