Grid contour line drawing method based on ocean IOT (Internet of Things)

A technology of contour drawing and the Internet of Things, applied in the field of value line drawing, can solve the problems of insufficient ocean big data, and achieve the effect of fast calculation speed and good effect.

Active Publication Date: 2018-11-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the visual processing of ocean big data is not perfect at home and abroad. There is a lot of room for improvement in the contour drawing algorithm and application of factors such as temperature and pressure. Apply the contour drawing to the visual display of ocean data. Has become a hot and difficult point of current research

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  • Grid contour line drawing method based on ocean IOT (Internet of Things)
  • Grid contour line drawing method based on ocean IOT (Internet of Things)
  • Grid contour line drawing method based on ocean IOT (Internet of Things)

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Embodiment Construction

[0018] Based on multi-sensor information interaction and distributed fusion data collection, the present invention performs grid division and fine triangulation division on original data, adds a triangular center of gravity interpolation algorithm, and visually draws isolines on ocean data. The specific implementation plan is as follows:

[0019] Step 1: Based on the information interaction and collection between multi-sensors on the ocean Internet, data preprocessing and distributed fusion operations are performed on ocean information such as temperature, air pressure, and depth.

[0020] Step 2: Carry out grid division in the entire space of all data points, based on the size of the current data volume and the density of data points. Divide the entire space into n*n regular grids, and then process the refined grid data.

[0021] Step 3: Calculate the standard deviation and mean for each data point in the grid, and calculate the difference between all data points and the mea...

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Abstract

The invention relates to a grid contour line drawing method based on an ocean IOT (Internet of Things), and the method comprises the following steps: performing preprocessing and distributed fusion operation of sensor data based on information interaction and collection between multiple sensors of the ocean Internet; carrying out the gridding in the entire space of all data points; calculating thestandard deviation and the mean of the data points in each grid, calculating all the data points and the difference of the mean values to obtain a data list, comparing each value in the list with a triple standard deviation, and continuing the grid construction at steps 2 and 3 in the region if the data value is greater than the triple standard deviation until a requirement is met; connecting thedata points a according to a connection rule, enabling the entire grid space to be constructed into a triangular mesh, and further carrying out the triangular gridding of a grid with the sparse data;carrying out the contour mapping according to the weight distribution, and searching a next triangular grid through the triangular mesh until all triangular grids are traversed, which indicates the end of contour tracking; and performing visualization processing.

Description

technical field [0001] The invention belongs to the field of marine data processing, and relates to a grid contour drawing method based on the marine internet of things. Background technique [0002] The research on the marine environment monitoring system has attracted more and more people's attention. The information interaction of various sensors through the Internet of Things plays an important role in the marine environment detection system. In order to protect and utilize marine resources, the collection and processing of marine information is urgent. The Internet of Things is mainly to connect sensors and networks, and its purpose is to enable objects to communicate with each other to achieve higher work efficiency and save operating costs. In the existing marine environment monitoring area, through the Internet of Things built by multiple sensors, the sensors cooperate to perceive, collect and process object information in the network coverage area, and send informat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/20
CPCG06T17/20Y02A90/10
Inventor 杨嘉琛赵启明
Owner TIANJIN UNIV
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