Abstract
Aiming at the complexity of the network transmission environment and the decentralization of the monitoring sites in the middle route of the South to North Water Diversion Project, this article presents a water conservancy monitoring architecture based on the visual sensor networks. First, a network assessment method is proposed to evaluate the sensor networks condition, and the encoder is adjusted with the result of the sensor networks condition evaluation. Then, based on distributed database architecture and visualization system construction, a three-level structure of the water conservancy monitoring system is designed and built. The experiment results show that the water conservancy monitoring system proposed in this article meets the transmission requirement under the complex sensor networks condition of water conservancy project. The water conservancy monitoring system has been applied to the middle route of the South to North Water Diversion Project, which achieves the needs of engineering applications.
Highlights
South to North Water Diversion Project is one of the largest, longest, most beneficiaries of inter-basin water conservancy projects in the world
From the network condition evaluation method above, it can be proved that when the network evaluation result is greater than zero, it shows that the network delay and the packet loss rate are high, which means the bandwidth is insufficient, the network transmission is overloaded, and the code rate of the video coding needs to be reduced
The histogram is divided into red, gray, and green, which indicate that the network evaluation value accumulated at the current time point is higher than the average level of the network condition evaluation value, the network evaluation value accumulated at the current time point is near the average of the network condition evaluation value, and the current network at the current point in time is lower than the average level of the network status evaluation
Summary
South to North Water Diversion Project is one of the largest, longest, most beneficiaries of inter-basin water conservancy projects in the world. In order to meet the requirements of monitoring data processing in the complex environment of South to North Water Diversion Project, this article studies the monitoring program of the middle route of the South to North Water Diversion Project, which can meet the requirements of massive data and complex network environment, combined with sensor network architecture construction and visual sensor networks transmission. In section ‘‘Monitoring model’’ of this article, the sensor network water monitoring system of the middle route of South to North Water Diversion is modeled.
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