The Monitoring System of Water Environment Based on Overlay Network Technology

At present, although methods of automatic, periodical manual data collection have been adopted in some areas, there are many problems existing in these methods. This paper proposes a new framework for online monitoring of water environment based on overlay network technology. Especially, we build the multi-level overlay network, which consists of the GPRS networks, mobile networks and internet networks. Following this, a multi-dimensional data cube for water environment is established using the ETL process with the input of complex heterogeneous data collected. Thereby, the framework of data center is established for on-line early warning of water environment and data analysis and processing. This framework has been put into use in Wuliangsuhai for the on-line real-time water monitoring tests. The results show that the overlapping network architecture is effective and on-line analysis and early warning of heterogeneous data is efficient.