Faculty of Civil and Environmental Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Water Res. 2013 Sep 1;47(13):4217-26. doi: 10.1016/j.watres.2013.04.048. Epub 2013 May 3.
The deployment of fixed online water quality sensors in water distribution systems has been recognized as one of the key components of contamination warning systems for securing public health. This study proposes to explore how the inclusion of mobile sensors for inline monitoring of various water quality parameters (e.g., residual chlorine, pH) can enhance water distribution system security. Mobile sensors equipped with sampling, sensing, data acquisition, wireless transmission and power generation systems are being designed, fabricated, and tested, and prototypes are expected to be released in the very near future. This study initiates the development of a theoretical framework for modeling mobile sensor movement in water distribution systems and integrating the sensory data collected from stationary and non-stationary sensor nodes to increase system security. The methodology is applied and demonstrated on two benchmark networks. Performance of different sensor network designs are compared for fixed and combined fixed and mobile sensor networks. Results indicate that complementing online sensor networks with inline monitoring can increase detection likelihood and decrease mean time to detection.
在供水系统中部署固定在线水质传感器已被认为是保障公共健康的污染预警系统的关键组成部分之一。本研究旨在探讨如何通过纳入用于在线监测各种水质参数（例如余氯、pH 值）的移动传感器来增强供水系统的安全性。目前正在设计、制造和测试配备采样、传感、数据采集、无线传输和发电系统的移动传感器，预计在不久的将来将推出原型。本研究旨在为移动传感器在供水系统中的运动建模和整合来自固定和非固定传感器节点的传感数据开发一个理论框架，以提高系统的安全性。该方法已应用于两个基准网络，并进行了演示。对固定和固定与移动混合传感器网络的不同传感器网络设计的性能进行了比较。结果表明，在线传感器网络与在线监测相结合可以提高检测可能性并降低检测平均时间。
