Multi-level combination expression method and system for locating area positions on earths surface

Patent metadata

Field	Value
Publication number	US-2025391291-A1
Application number	US-202519312299-A
Country	US
Kind code	A1
Filing date	Aug 28, 2025
Priority date	Jul 5, 2024
Publication date	Dec 25, 2025
Grant date	—

Abstract

A multi-level combination expression method and system for locating area positions on Earth's surface are provided. The method comprises: dividing Earth's surface into a plurality of area blocks along longitude and latitude directions, to form a plurality of levels based on area of the plurality of area blocks from large to small; representing each level of the plurality of levels by two characters or words, with a first character or word representing a center point position of an area block of the plurality of area blocks in a longitude direction, and a second character or word representing a center point position of the area block in a latitude direction; and expressing a position of the area block on the Earth's surface by utilizing a multi-level combination method and a longitude latitude cross positioning method.

First claim

What is claimed is:

1 . A multi-level combination expression method for locating area positions on Earth's surface, comprising:
dividing Earth's surface into a plurality of area blocks along longitude and latitude directions, forming a plurality of levels based on area of the plurality of area blocks from large to small; representing each level of the plurality of levels by two characters or words, with a first character or word representing a center point position of an area block of the plurality of area blocks in a longitude direction, and a second character or word representing a center point position of the area block in a latitude direction; and expressing a position of the area block on the Earth's surface by utilizing a multi-level combination method and a longitude latitude cross positioning method.

2 . The multi-level combination expression method for locating area positions on Earth's surface according to claim 1 , wherein dividing Earth's surface into a plurality of area blocks along longitude and latitude directions, forming a plurality of levels based on area of the plurality of area blocks from large to small comprises:
dividing the Earth's surface into a plurality of region blocks each with an area of less than or equal to 10,000 meters×10,000 meters along the longitude and latitude directions, and the plurality of region blocks constitute a first level; dividing the plurality of region blocks into a plurality of domain blocks arranged in order and according to rules each with an area of less than or equal to 1,000 meters×1,000 meters, and the plurality of domain blocks constitute a second level; diving the plurality of region blocks into a plurality of large blocks arranged in order and according to rules each with an area of less than or equal to 100 meters×100 meters, and the plurality of large blocks constitute a third level; dividing the plurality of region blocks into a plurality of middle blocks arranged in order and according to rules each with an area of less than or equal to 10 meters×10 meters, and the plurality of middle blocks constitute a fourth level; and dividing the plurality of region blocks into a plurality of small blocks arranged in order and according to rules each with an area of less than or equal to 2 meters×2 meters, and the plurality of small blocks constitute a fifth level.

3 . The multi-level combination expression method for locating area positions on Earth's surface according to claim 2 , wherein
dividing the plurality of small blocks into a plurality of secondary small blocks arranged in order and according to rules each with an area of less than or equal to 0.1 meters×0.1 meters, and the plurality of secondary small blocks constitute a sixth level; dividing the plurality of small blocks into a plurality of tertiary small blocks arranged in order and according to rules each with an area of less than or equal to 0.01 meters×0.01 meters, and the plurality of tertiary small blocks constitute a seventh level; and dividing the plurality of small blocks into a plurality of smallest blocks arranged in order and according to rules each with an area of less than or equal to 0.001 meters×0.001 meters, and the plurality of smallest blocks constitute an eighth level.

4 . The multi-level combination expression method for locating area positions on Earth's surface according to claim 3 , wherein representing each level of the plurality of levels by two characters or words, with a first character or word representing a center point position of an area block of the plurality of area blocks in a longitude direction, and a second character or word representing a center point position of the area block in a latitude direction comprises:
expressing the first level by two characters of Character Set 1, which is composed of at least 2,300 non-repetitive characters; expressing the second level by two characters of Character Set 2, which is composed of at least 10 non-repetitive characters that do not belong to the Character Set 1; expressing the third level by two characters of Character Set 4, which is composed of at least 100 non-repetitive characters that do not belong to Character Set 3, and the Character Set 3 is composed of the Character Set 1 and the Character Set 2; expressing the fourth level by two characters of Character Set 6, which is composed of at least 1,000 non-repetitive characters that do not belong to Character Set 5, and the Character Set 5 is composed of the Character Set 3 and the Character Set 4; expressing the fifth level by two characters of Character Set 8 or two words of Word Set 1, the Character Set 8 is composed of at least 5,000 non-repetitive characters that do not belong to Character Set 7, and the Character Set 7 is composed of the Character Set 5 and Character Set 6; the Word Set 1 is composed of at least 5,000 non-repetitive words; expressing the sixth level by two characters of Character Set 10, which is composed of at least 20 non-repetitive characters that do not belong to Character Set 9, and the Character Set 9 is composed of the Character Set 7 and the Character Set 8; expressing the seventh level by two characters of Character Set 12, which is composed of at least 200 non-repetitive characters that do not belong to Character Set 11, and the Character Set 11 is composed of the Character Set 9 and the Character Set 10; and expressing the eighth level by two characters of Character Set 14 or two words of Word Set 2, the Character Set 14 is composed of at least 2,000 non-repetitive characters that do not belong to the Character Set 13, and the Character Set 13 is composed of the Character Set 11 and the Character Set 12; and the Word Set 2 is composed of at least 2,000 non-repetitive words that do not belong to the Word Set 1.

5 . The multi-level combination expression method for locating area positions on Earth's surface according to claim 4 , wherein a character of the two characters is a Chinese character, a letter, a number, a combination of a letter and a number, a combination of two letters, a combination of two numbers, or a monosyllabic spelling structure in English or other languages.

6 . The multi-level combination expression method for locating area positions on Earth's surface according to claim 4 , wherein a word of the two words is a structure of two Chinese characters, or a spelling structure of Chinese, English or other languages pronounced as two syllables.

7 . The multi-level combination expression method for locating area positions on Earth's surface according to claim 4 , wherein expressing a position of the area block on the Earth's surface by utilizing a multi-level combination method and a longitude latitude cross positioning method comprises:
expressing by utilizing a combination of the first level and one of the second to fifth levels, and an expression format of which is: expressing a first character of longitude by the first level and expressing the first character of longitude by one of the second to fourth levels, and expressing a second character of latitude by the first level and expressing the second character of latitude by one of the second to fourth levels; or expressing the first character of longitude by the first level and expressing the first character or the a first word of longitude by the fifth level, and expressing the second character of latitude by the first level and expressing the second character or a second word of latitude by the fifth level; or expressing by utilizing a combination of the first level, the fifth level, and one of the sixth to eighth levels, and an expression format of which is: expressing the first character of longitude by the first level and expressing the first character or the first word of longitude by the fifth level an

Assignees

• Univ Central South

Inventors

• Luo Rongwu

Classifications

• G09B29/10 Primary

  Map spot or coordinate position indicators; Map reading aids (optical projection apparatus per se G03B) · CPC title

• G01C21/34

  Route searching; Route guidance · CPC title

• G01C21/203

  specially adapted for water-borne vessels · CPC title

• G01C21/20

  Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence) · CPC title

• G01C21/04 Primary

  by terrestrial means (G01C21/24, G01C21/26 take precedence) · CPC title