近年来出现了 各种各样的早期预警系统 连续在线检测网络中断 供水系统的安全和质量 网络必须对这些系统进行任何评估 要考虑到许多因素 超出检测能力，包括 标准包括易用性和两用价值。 这篇文章提出了 覆盖范围、操作和性能 预警系统的特点和 描述了一种数学方法 使用修改后的 接收机工作特性（ROC）曲线 被军方广泛使用。组合 广泛的具体标准和 修正的ROC曲线有助于水资源利用 在选择合适和有效的早期 预警系统技术。此外 修改后的ROC曲线可用于 系统操作帮助操作员设置真实的 基于风险条件的检测阈值 在理解潜力的同时 在假警报中权衡。包括10个参考文献、表格和图表。

Recent years have seen the introduction of a variety of early warning systems designed for continuous on-line detection of disruptions in security and quality in the water distribution network. Any evaluation of these systems must take into account numerous factors that go beyond detection capability to include such criteria as ease of use and dual-use value. This article proposes standard criteria for the coverage, operational, and performance characteristics of early warning systems and describes a methodology for mathematically evaluating these systems using a modified receiver operating characteristic (ROC) curve widely used by the military. The combination of extensive specific criteria and the use of the modified ROC curve can help water utilities in selecting appropriate and effective early warning system technology. In addition, the modified ROC curves can be used during system operation to help operators set realistic detection thresholds based on risk conditions while understanding the potential tradeoff in false alarms. Includes 10 references, tables, figures.