基于无线网络的海洋传感数据实时传输系统设计

System Design for Ocean Sensor Data Transmission Based on Wireless Networks

探索与开发海洋资源对人类有着重大意义,而海洋数据的获取又是探索和开发海洋的前提,如何准确、高效和实时地获取海洋传感数据已成为海洋探测的关键问题。目前用于海洋数据获取和传输的方式主要有有线传输、水声通信、基于移动网络的GPRS通信和卫星通信等方式,但是由于它们各自的局限性,均无法同时满足数据传输的高效率、实时性、低功耗和低成本的要求。文章提出了一套新的数据采集传输系统,基于无线网络的海洋传感数据实时传输系统。水下通过感应耦合方式将部署在水下的海洋传感设备数据进行提取,通过一条包塑钢缆将挂在其上的传感器所采集到的数据依次传输到数据采集板进行处理和存储。水上使用FGR2无线模块组建无线网络,依托FGR2模块高速率、远距离、抗干扰等优势完成数据的实时远距离无线传输。同时,通过FGR2模块组成的无线网络,把所有节点组到一起,网内主节点可以通过网络协议依次获取多个浮标的数据,并可以控制实现海洋传感数据的准确获取与传输,以达到海洋数据获取的实时、高效、低功耗和低成本的目的。

Exploration and development of marine resources has great significance for human, at the same time, marine data acquisition is the premise of exploration and development of marine. How accurate, efficient and real-time access to ocean sensor data, has become the key problem of ocean exploration. Currently used for ocean data acquisition and transmission mode mainly includes cable transmission, underwater acoustic communication, mobile networks based on the GPRS communication and satellite communication mode. But because of their own limitations, cannot meet the real-time, high effi ciency, low power consumption and low cost requirements. This paper presents a new set of data acquisition and transmission system, ocean sensor data real-time transmission system based on wireless network. Under water, extracted from sensor data through induction coupling through inductive coupling mode, through a plastic coated steel cable to transfer the data to the data acquisition board for processing and storage. Above the water, the establishment of a wireless network using FGR2 wireless module, completes the real-time remote wireless data transmission based on FGR2 module in high speed and long distance and anti-interference advantages. At the same time, the wireless network through the FGR2 module, the groups together all the nodes within the network, the main node can sequentially acquiring a plurality of buoy through the network protocol data, and can be controlled to realize accurate acquisition and transmission of marine sensor data, to realize real-time ocean data acquisition, high effi ciency, low power consumption and low cost goals.