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Data Acquisition Subsystem of Monitoring System in Ocean Environment Based on WSN

Author: GuoYu
Tutor: FangZhiYi
School: Jilin University
Course: Software Engineering
Keywords: Wireless sensor networks Node Data acquisition module
CLC: X859
Type: Master's thesis
Year: 2011
Downloads: 63
Quote: 0
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Abstract


There is now concern about the environment gradually improved, because the continuous development of industrialization, people for the environmental pollution has become increasingly worse. Marine Disasters rate increased year by year, to people's lives with varying degrees of threat. Marine geographically widespread, for monitoring the marine environment need to invest a lot of manpower, material resources, there are a lot of inconvenience in monitoring. Wireless sensor networks to solve this problem, because of its inherent specificity, determines its conduct in the broad field of environmental monitoring occupied a considerable advantage. It can be through its internal nodes gather information and conduct and analyzed, and ultimately sent to the monitoring of those. Another advantage of the wireless sensor network environment is that it requires very low, can be carried out in bad weather to work, not like in the past limited network appear as line break, causing the transmission of data can not be normal. For this particular geographical environment oceans, the distribution of nodes can be assigned in the seabed, or allocated in the middle of the ocean. Compared to the situation in the sea is easy, as long as the nodes placed in the position to be monitored. In the middle of the ocean environmental monitoring relatively complicated. In this regard, we passed on the way nodes buoy positioning is usually buoy floating in the sea, which makes the node can only float on the sea, but will also bring a lot of inconvenience to the traveling vessel. So we put buoy tied nodes, the fixed point, through the line to control the length node's location, so you can be monitored for a particular location. Node's energy consumption has been attracting much attention, the data nodes to be monitored at the same time will consume some energy, in order to prolong the network lifetime, has taken some of the relevant energy saving measures. Join nodes, the network will result in re-exit topology, so the cluster head selection is random, not fixed. According to the signal strength is compared to elect a relatively strong signal node as the cluster head node, so that the benefits also save energy. Data acquisition module for the entire monitoring system is a very important place. Only through the marine environment data collection and collation to monitor the dynamics of the ocean, so that the entire system was to play his role. This system is on the Linux operating system, the safety performance of the system is relatively high, and there is a good opening for the development work made easy. The development of language using Java, it is relative to other more flexible in other languages, object-oriented more intuitive.

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CLC: > Environmental science, safety science > Environmental Quality Assessment and Environmental Monitoring > Environmental monitoring equipment > Other monitoring equipment
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