Nine-grid coordinate system

Abstract

The nine-grid coordinate system is a novel geographic coordinate digital coding positioning system, and a recursive nested structure of multi-layer grid and digit combination is suitable for geographic map address coding. And the positioning precision is improved in an exponential level along with the increase of levels. Digital codes generated through nine-grid coordinate system positioning have various meanings, such as distance, orientation, positioning, area, color and the like, and a user can give extra meanings to the codes in a self-defined mode according to the requirements of the user. Meanwhile, the generated digital coding positioning function can be compatible with latitude and longitude coordinates of GPS, Beidou and other positioning systems, and mutual conversion can be realized.

Description

Technical Field

[0001] The present invention belongs to the field of spatial data analysis and control technology, and specifically relates to a geographic address coordinate digital coding system that integrates multiple factors such as measurement, distance, orientation, positioning, and area. The system is suitable for geographic address digital house number coding, logistics tracking, and urban digital identification scenarios. Background Art

[0002] Traditional coordinate systems (such as longitude and latitude) only record location coordinates and lack integration of operational parameters such as measurement accuracy and control permissions, requiring additional database-linked data. Integrating multiple elements such as distance measurement, control, and orientation suffers from digital code redundancy, a single data dimension, and insufficient spatial resolution, making it difficult to meet the requirements of high-precision positioning and cross-system collaboration using a single digital code. Summary of the Invention

[0003] The nine-grid coordinate system of the present invention is a new type of geographic coordinate digital coding positioning system, which mainly includes:

[0004] 1. Multi-layer recursive nested structure

[0005] The nine-grid coordinate system uses a multi-layer recursive nested structure. Its core rule is to divide the plane space layer by layer into 3*3 grids and assign a number from 1 to 9 to each grid cell. The accuracy of the digital coordinates is improved through recursive nesting expansion. The detailed nesting rules are as follows:

[0006] The first layer grid L(n) = 1: The basic grid unit consists of 9 grids (3×3) and numbers 1-9. The grid and number coding rules are as follows ( Figure 1 )

[0007] The second layer grid L(n) = 2: Each unit of the first layer is recursively subdivided into 3×3 subgrids to form a 9×9 structure. The grid and digital encoding rules are as follows ( Figure 2 )

[0008] The third layer grid L(n) = 3: Based on the second layer, the grid and digital encoding rules are as follows: Figure 3 )

[0009] The fourth layer grid L(n)=4 and above is expanded by the number of grids raised to the power of 9 (e.g., when n=4 in the fourth layer, it is 729×9), following the same recursive logic.

[0010] The formula for recursive grid level expansion is: L(n) = 9 to the power of n. (Where L(n) is the total number of grids in the nth level)

[0011] The grid coding positioning accuracy in the nine-grid coordinate system is inversely proportional to the level, and the positioning accuracy increases exponentially as the level increases.

[0012] 2. Multi-factor integration

[0013] The digital code generated by the nine-grid coordinate system integrates multiple elements, including distance, direction, location, area, and color. Distance, direction, location, and area parameters are controlled by grid levels and numbers. The accuracy of distance, location, and area parameters is controlled by the grid level. Level 10 allows for accuracy to 100 meters, level 15 allows for accuracy to meters, and level 18 allows for accuracy to centimeters. Direction parameters are represented by numbers, such as 9 for due north, 3 for due east, 5 for due south, 7 for due west, 1 for center, 8 for northwest, 2 for northeast, 6 for southwest, and 4 for southeast. Color parameters are represented by numbers, such as 1 for yellow, 2 for green, 3 for dark green, 4 for dark red, 5 for red, 6 for purple, 7 for gray, 8 for blue, and 9 for black.

[0014] 3. High compatibility

[0015] The digital code generated by the nine-grid coordinate system is compatible with the latitude and longitude coordinate conversion interface of positioning systems such as GPS and Beidou, and supports cross-platform data interoperability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Display the first layer of grid and number combinations of the nine-grid coordinate system.

[0017] Figure 2 Shows the second-level grid and number combinations of the nine-grid coordinate system.

[0018] Figure 3 Showing the third level grid and number combinations of the nine-grid coordinate system.

[0019] Figure 4 The figure shows an example of digitally coded positioning of the fourth-layer 6561-grid geographic coordinates generated on a world map using a nine-grid coordinate system.

[0020] The following is an example of the mapping relationship between the digital codes generated by the four-layer nine-grid coordinate system and the place names of various regions:

[0021] Figure 5 Shown is an example of digitally coded positioning of geographic coordinates of a fifth-layer partial grid generated on a world map using a nine-grid coordinate system.

[0022] The following is an example of the mapping relationship between the digital codes generated by the five-layer nine-grid coordinate system and the jurisdiction place names:

[0023]

[0024] Figure 6 Shown is an example of digitally coded positioning of geographic coordinates of the eleventh grid layer generated on a world map using a nine-grid coordinate system.

[0025] An example of the mapping relationship between the digital codes generated by the eleven-story nine-grid coordinate system and the buildings in the jurisdiction is as follows:

[0026]

[0027] Figure 7 Shown is an example of digitally encoded positioning of geographic coordinates of a portion of the fourteenth grid generated on a world map using a nine-grid coordinate system.

[0028] The following is an example of the mapping relationship between digital house number codes and shops generated by the fourteen-story nine-grid coordinate system: DETAILED DESCRIPTION

[0029] like Figure 4-Figure 7 As shown in the figure, the nine-grid coordinate system is applied to the world map for digital coding of geographic coordinates. This can provide multi-dimensional and accurate address and house number coding for smart cities.

[0030] Scenario description: Build a unified digital address coding database for the urban address system, supporting multi-level mapping from regions (hundred-kilometer level) to provincial and municipal areas (kilometer level) to house numbers (meter level).

[0031] Implementation steps:

[0032] 1. Layered digital grid encoding rules:

[0033] Grid layering formula: The number of grids in the nth layer = 9 to the power of n

[0034] Grid recursion method: Each layer subdivides the upper grid into 3×3 subgrids, which are identified by numbers 1-9.

[0035] The grid level and the number of encoding bits remain consistent.

[0036] 2. Coordinate connection:

[0037] Forward digital code: The digital code generated by the nine-grid positioning system can be obtained through the longitude and latitude coordinates.

[0038] Reverse analysis: Analyze and restore the digital code produced by the nine-grid positioning system into longitude and latitude coordinates.

[0039] The forward digital encoding and reverse analysis show that the digital encoding generated by the nine-grid coordinate system is compatible with the synchronization of longitude and latitude coordinates and can be interchanged. It can realize the conversion of longitude and latitude coordinate interface data of positioning systems such as GPS and Beidou.

[0040] 3. Cross-system interoperability

[0041] Connect with the house number address database of the civil affairs department and establish the mapping data between the nine-grid digital code and the traditional text address, as follows:

[0042] House number and address database data of the civil affairs department (example) Nine-grid digital code A Korean laundry in the eastern district of a city in Hebei Province 25173168411219 Redwood Pavilion in the East District of a city in Hebei Province 25173168411254 No. 93 Xiaosha Barber Shop, East District, a city in Hebei Province 25173168411312 No. 97, Liangjia Laundry, East District, a city in Hebei Province 25173168411341 Jinwang Logistics in the eastern district of a city in Hebei Province 25173168411412 No. 109, Shengxin Hotpot, East District, a city in Hebei Province 25173168411448

[0043] 4. Verification of technical achievements

[0044] The nine-grid digital code can accurately obtain the precise location of the mapped address. This technology breaks through the single-dimensional limitation of traditional address coding and gives the traditional house number plate a unified geographic address digital code, forming a "world's only address digital code ID card."

Claims

1. The Nine-Grid Coordinate System is a new type of geographic coordinate digital coding and positioning system, composed of multiple layers of recursive grids and digital combinations. Its core rule is to divide the plane space layer by layer into 3*3 grids and assign a number 1-9 to each grid cell. The recursive nesting and expansion achieves improved digital coordinate accuracy, and each number can also represent direction and color.

2. The method according to claim 1, wherein: The first layer is composed of 3*3 grids and numbers 1-9, the second layer is composed of 9*9 grids and numbers 1-9, the third layer is composed of 81*9 grids and numbers 1-9, and so on, forming a multi-layer grid nested positioning system.

3. The method according to claim 1, wherein each number represents a direction and a color, characterized in that the number 9 represents due north and black, the number 3 represents due east and dark green, the number 5 represents due south and red, the number 7 represents due west and gray, the number 1 represents center and yellow, the number 2 represents northeast and green, the number 4 represents southeast and dark red, the number 6 represents southwest and purple, and the number 8 represents northwest and blue.

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