Hierarchical nested data acquisition and transmission method for wireless fiber optic sensor network

Abstract

The invention relates to a layered and nested real-time data acquisition and transmission method of a wireless optical fiber sensor network. In the wireless optical fiber sensor network, the upper network composed of a central control node, a routing node and a control node uses Multi-hop polling mechanism, routing nodes and some management nodes undertake the routing function to realize remote multi-hop transmission of control information and sensing data; the underlying network composed of control nodes and wireless fiber optic sensor nodes , using a dual-synchronous dynamic time-division multiplexing mechanism to realize distributed synchronous collection and transmission of monitoring data in the same hotspot area; the underlying data collection and transmission period is nested in the upper-level polling period. The wireless fiber optic sensor network has the characteristics of low power consumption, wide distribution, and good real-time performance. It is suitable for monitoring fields with known application environments such as oil depots, power systems, mine tunnels, and greenhouse granaries.

Description

technical field [0001] The invention relates to a collection and transmission technology of layered nested data of a wireless optical fiber sensor network, which belongs to the wireless sensor network technology. Background technique [0002] The wireless fiber optic sensor network is composed of a large number of deployed fiber optic sensor nodes, which cooperatively sense, collect, and process information in the monitoring area, and transmit it to the control center in a wireless multi-hop manner. The wireless fiber optic sensor network combines the advantages of fiber optic sensors such as anti-electromagnetic interference, flameproof and explosion-proof, and the advantages of flexible wireless networking, strong scalability, low cost, and distributed computing. It is suitable for flammable, explosive, strong Corrosive, high electromagnetic interference and other high-risk environments have very important theoretical and practical significance. In the wireless fiber opti...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides a layered nested data acquisition and transmission method suitable for wireless optical fiber sensor networks, which can effectively solve the problem of synchronization between nodes, has the characteristics of low energy consumption, and supports all wireless Fiber optic sensor nodes dynamically join the network, which has self-organization, overcomes the shortcomings of the existing wireless sensor network communication protocols, meets the application requirements of wireless fiber optic sensor networks, and realizes distributed synchronous collection and remote multi-hop real-time monitoring of hot spot monitoring units. transmission

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