Remote sensing data product on-orbit distribution method based on earth observation space cloud service

Abstract

The invention provides a remote sensing data product on-orbit distribution method based on space cloud service, and belongs to the field of on-orbit data distribution service. According to the method, satellite data products are efficiently organized and managed by using a global grid coding technology, and efficient query and network segmentation of the satellite data products are supported; according to limitation conditions such as existing satellite resources, link types, working frequency bands, channel characteristics, transmission capacity and aging characteristics of a space-based system, a space-based information distribution strategy is automatically optimized through user requirements and multi-dimensional weight evaluation of existing space-based conditions; an efficient multi-task scheduling algorithm is designed, reasonable arrangement and scheduling of generation, distribution and transmission work serving space-based information guarantee tasks are achieved under the limiting conditions of time constraint, transmission bandwidth constraint, task priority constraint and the like for the situation of multiple tasks provided by different users, and the space-based information guarantee tasks are distributed according to space-based environment calculation and storage resource conditions. The number of tasks processed by the system in parallel is reasonably controlled, and the space-based information distribution speed and quality are guaranteed.

Description

technical field [0001] The invention belongs to the field of on-orbit data distribution services, and proposes an on-orbit distribution method for remote sensing data products based on earth observation space cloud services, which involves space cloud services, on-orbit data management, and the construction of a distribution system, and is suitable for multi-type terminal-oriented systems. Remote sensing data products on-orbit distribution system. Background technique [0002] The processing and distribution of existing remote sensing data products in my country is mainly completed by the ground processing system, which has the shortcomings of long distribution paths, many links, poor real-time performance, and inflexible distribution mechanisms, which cannot meet the needs of high timeliness. With the improvement of on-orbit data processing technology, the enhancement of on-orbit storage capacity, and the application of multi-link networks, in response to this problem, an o...

AI Technical Summary

Problems solved by technology

[0002] The processing and distribution of existing remote sensing data products in my country is mainly completed by the ground processing system, which has the disadvantages of long distribution path, many links, poor real-time performance, and inflexible distribution mechanism, which cannot meet the needs of high timeliness

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