Offshore islands and reefs environmental monitoring system and decision-making fusion method

Abstract

The invention discloses a distant sea island reef environment monitoring system and a decision-level fusion method. The system adopts a physical layer, a network layer and a sensing layer three-layerstructure. The physical layer is configured with an access node, a coastal transmitting station and an offshore island and reef radio station. The offshore island and reef radio station receives the data uploaded by the environmental monitoring sensor and uploads the data to the network layer through the access node. The network layer includes IP bearer network and information fusion system. The sensing layer comprises a frequency management system and business units, wherein the frequency management system is used for dynamically planning the working frequency of the offshore island reef radio station and scheduling the corresponding coastal transmitter, and the business units are used for acquiring the monitoring situation data of each island reef environment. The invention adopts the wide-area cooperative receiving characteristic, relies on the communication base station widely distributed on the land of the iron tower company, the construction and operation cost is extremely low, and the multi-channel decision-making level fusion algorithm can effectively guarantee the reliable reporting of the environmental monitoring data of the offshore islands and reefs.

Description

technical field [0001] The invention relates to the field of monitoring, in particular to a decision-level fusion method for an environmental monitoring system for remote sea islands and reefs. Background technique [0002] Affected by typhoon, sea wave, storm surge, sea ice and other disasters, China is one of the countries with the most serious marine disasters in the world. As the outpost of national coastal defense, remote islands and reefs are the strategic fulcrum of national marine environment monitoring and marine traffic guarantee. Their environmental monitoring plays an irreplaceable and important role in marine disaster early warning, marine traffic management, national sovereignty and protection of marine rights and interests. [0003] However, remote islands and reefs are located far away from the mainland, and the transportation is inconvenient, so it is very difficult for personnel to be stationed for a long time. At present, the environmental monitoring of r...

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However, the time-varying dispersion of the sky-wave channel and the overlapping and crowded spectrum

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