国产bbaaaaa片,成年美女黄网站色视频免费,成年黄大片,а天堂中文最新一区二区三区,成人精品视频一区二区三区尤物

首頁(yè)> 外文OA文獻(xiàn) >A hierarchy of change-point methods for estimating the time instant of leakages in water distribution networks
【2h】

A hierarchy of change-point methods for estimating the time instant of leakages in water distribution networks

機(jī)譯：用于估算配水網(wǎng)絡(luò)泄漏時(shí)刻的變點(diǎn)方法的層次結(jié)構(gòu)

代理獲取
本網(wǎng)站僅為用戶(hù)提供外文OA文獻(xiàn)查詢(xún)和代理獲取服務(wù)，本網(wǎng)站沒(méi)有原文。下單后我們將采用程序或人工為您竭誠(chéng)獲取高質(zhì)量的原文，但由于OA文獻(xiàn)來(lái)源多樣且變更頻繁，仍可能出現(xiàn)獲取不到、文獻(xiàn)不完整或與標(biāo)題不符等情況，如果獲取不到我們將提供退款服務(wù)。請(qǐng)知悉。
  • 摘要
  • 著錄項(xiàng)
  • 相似文獻(xiàn)
  • 相關(guān)主題

摘要

Leakages are a relevant issue in water distribution networks with severe effects on costs and water savings. While there are several solutions for detecting leakages by analyzing of the minimum night flow and the pressure inside manageable areas of the network (DMAs), the problem of estimating the time-instant when the leak occurred has been much less considered. However, an estimate of the leakage time-instant is useful for the diagnosis operations, as it may clarify the leak causes. We here address this problem by combining two change-point methods (CPMs) in a hierarchy: at first, a CPM analyses the minimum night flow providing an estimate of the day when the leakage started. Such an estimate is then refined by a second CPM, which analyzes the residuals between the pressure measurements and a network model in a neighborhood of the estimated leakage day. The proposed approach was tested on data from a DMA of a big European city, both on artificially injected and real leakages. Results show the feasibility of the proposed solution, also when leakages are very small. ? IFIP International Federation for Information Processing 2013.
機(jī)譯：漏水是配水網(wǎng)絡(luò)中的一個(gè)相關(guān)問(wèn)題，會(huì)對(duì)成本和節(jié)水產(chǎn)生嚴(yán)重影響。盡管有幾種解決方案可以通過(guò)分析最小夜間流量和網(wǎng)絡(luò)可管理區(qū)域（DMA）內(nèi)的壓力來(lái)檢測(cè)泄漏，但考慮泄漏發(fā)生時(shí)的即時(shí)估計(jì)問(wèn)題卻少了很多。但是，泄漏時(shí)間瞬時(shí)值的估計(jì)對(duì)于診斷操作很有用，因?yàn)樗梢猿吻逍孤┰?。在這里，我們通過(guò)在層次結(jié)構(gòu)中組合兩個(gè)變更點(diǎn)方法（CPM）解決此問(wèn)題：首先，CPM分析最小夜間流量，以提供泄漏開(kāi)始日期的估計(jì)。然后，通過(guò)第二個(gè)CPM完善這種估計(jì)，該CPM分析估計(jì)的泄漏日附近壓力測(cè)量值和網(wǎng)絡(luò)模型之間的殘差。在來(lái)自歐洲大城市DMA的數(shù)據(jù)上對(duì)提出的方法進(jìn)行了測(cè)試，包括人為注入和實(shí)際泄漏。結(jié)果表明了該方案的可行性，即使泄漏量很小。 ?IFIP國(guó)際信息處理聯(lián)合會(huì)2013。

著錄項(xiàng)

相似文獻(xiàn)

  • 外文文獻(xiàn)
  • 中文文獻(xiàn)
  • 專(zhuān)利
代理獲取

客服郵箱：kefu@zhangqiaokeyan.com

京公網(wǎng)安備：11010802029741號(hào) ICP備案號(hào)：京ICP備15016152號(hào)-6 六維聯(lián)合信息科技 (北京) 有限公司?版權(quán)所有

  • 客服微信

  • 服務(wù)號(hào)