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An expression method of urban block function mixture degree based on poi data

A technology of urban blocks and expression methods, applied in the fields of digital data processing, geographic information database, structured data retrieval, etc., which can solve the problems of poor interpretability and reproducibility

Active Publication Date: 2022-04-19
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

At present, there is a lack of effective technical methods to recognize the distribution characteristics of the functional mix under the overall spatial structure of the city in China, and although some research data sources are rich in types, there are problems such as interpretability and reproducibility.

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  • An expression method of urban block function mixture degree based on poi data
  • An expression method of urban block function mixture degree based on poi data
  • An expression method of urban block function mixture degree based on poi data

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] A method for expressing the mixed degree of urban block functions based on POI data, such as figure 1 and figure 2 shown, including the following steps:

[0048] 1. Obtain the data of POI points of interest in the middle and old urban areas of Nanjing in 2021 through the Amap API interface (https: / / ditu.amap.com / ), a total of 101,516 POI points of interest data.

[0049] 2. Select 10 typical blocks from the city selected in step 1 and within the selected ...

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Abstract

The invention discloses a POI data-based expression method for urban block function mixing degree, which relates to the field of urban block function research, including acquiring urban POI point of interest data information, characterizing, classifying and cleaning the data information, obtaining the actual mixing degree and calculating Mixing degree, the weight coefficient is obtained through Pearson correlation analysis, the function mixing index of each block is obtained, the ternary phase diagram is produced, and the statistical map of different functions is generated through the ternary phase diagram; the present invention combines urban functional spatial structure with POI big data Combined, it provides a relatively intuitive means for one-time identification of the dominant function in the block, the degree of functional mixing, and the trend of functional changes between blocks; Known, and can use this to further explore the influencing factors.

Description

technical field [0001] The invention relates to the field of urban block function research, in particular to a method for expressing the mixed degree of urban block functions based on POI data. Background technique [0002] Functional mixing is an important topic in contemporary urban planning and design research. Functional mixing is generally considered to be an important principle and method for creating a diverse and dynamic urban living environment and promoting sustainable urban development. The core content of theories such as "urban regeneration" in the United Kingdom and "smart growth" in the United States. Under the background of my country's new urbanization, the reasonable mix of block functions is an important starting point for the city to "optimize the structure and improve efficiency" and an important link to achieve intensification and sustainable development. Scholars at home and abroad have carried out multi-level research on the concept, theory and prac...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/9537G06F16/29
CPCG06F16/9537G06F16/29
Inventor 王正郭菂黄宜文李俊杰
Owner SOUTHEAST UNIV