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Transmission line satellite monitoring data processing method and system based on layered GPU calculation

A technology for monitoring data and transmission lines, which is applied in the field of satellite monitoring data processing of transmission lines based on layered GPU computing, can solve the problems of slow satellite data processing, delays in disaster prevention and control of transmission lines, etc. Efficiency and the effect of ensuring operational safety

Active Publication Date: 2021-08-31
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology

[0004] The present invention provides a transmission line satellite monitoring data processing method and system based on layered GPU calculation, which is used to solve the technical problem of delaying the transmission line disaster prevention and control work due to the slow speed of traditional satellite data processing

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  • Transmission line satellite monitoring data processing method and system based on layered GPU calculation
  • Transmission line satellite monitoring data processing method and system based on layered GPU calculation
  • Transmission line satellite monitoring data processing method and system based on layered GPU calculation

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Embodiment 1

[0052] This embodiment takes the satellite data pictures of the NOAA20 satellite passing through China on the morning of October 6, 2019 as an example to further illustrate the method for processing transmission line satellite monitoring data based on layered GPU calculation of the present invention. refer to figure 1 , figure 2 , this embodiment includes the following steps:

[0053] S1: Analyze L0-level satellite data: CPU obtains satellite L0-level data and scans, obtains satellite scan band information, scan band raw radiation value data, and satellite ephemeris data, as the first data, caches and continuously updates to GPU memory ; Wherein, the satellite L0 level data is the original satellite image data stream stored in HDF format, including satellite scan band information, scan band raw radiation value data and satellite ephemeris data;

[0054] S2: Analysis of scan band data: GPU retrieves the first data, and decompresses the radiation value data of the HDF file an...

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Abstract

The invention discloses a transmission line satellite monitoring data processing method and system based on layered GPU calculation. The method includes: CPU obtains satellite L0 level data and scans, obtains satellite scan band information, original radiation value data of the scan band, and The satellite ephemeris data, as the first data, is cached and continuously updated into the GPU memory; the GPU calls the first data, and performs radiation value data decompression and brightening on the first data through the divided coarse-grained calculation unit and fine-grained calculation unit. Temperature data calculation; GPU calculates the geographic coordinates of each pixel in the first data, generates bright temperature image data with geographic coordinates, and returns it to the CPU as the second data; the CPU updates the stored satellite image data stream according to the second data, as Satellite L1 data is pushed to the front-end disaster monitoring and identification application. The invention realizes fast receiving and processing of satellite data, improves the processing speed of meteorological polar-orbiting satellite data and the efficiency of responding to meteorological disasters.

Description

technical field [0001] The invention relates to the technical field of power grid protection, in particular to a method and system for processing transmission line satellite monitoring data based on layered GPU calculation. Background technique [0002] With the continuous expansion of UHV lines and inter-regional power grids, more and more transmission lines pass through high mountains and forests. During the Spring Festival, Qingming Festival, autumn harvest and other seasons, when encountering continuous dry weather, large-scale wildfires are prone to erupt. According to the statistics of line trips in a province's main network, trips caused by mountain fires accounted for 16.04% of the total line trips, and frequent mountain fires have become the main reason for the increase in the number of trips on transmission lines. Due to the extremely fast spread of wildfires, traditional methods based on manual inspections cannot effectively prevent and control wildfires on transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/10G08B29/18
CPCG08B21/10G08B29/185
Inventor 章国勇李波周秀冬罗晶何立夫
Owner STATE GRID HUNAN ELECTRIC POWER
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