Model calibration and system simulation from real time monitoring of water distribution networks

Nicolini, Matteo; Patriarca, Alessandro

doi:10.1109/iccrd.2011.5763972

Cited by 8 publications

(5 citation statements)

References 4 publications

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“…The main characteristics of these systems are reported in Table 1. Each WDS has been simulated with the Epanet software, while model calibration has been performed with a genetic algorithm previously developed [37][38][39]. In particular, the demand pattern has been derived from SCADA (Supervisory Control and Data Acquisition) measurements and DMA monitoring data.…”

Section: Characteristics Of the Real Wdss Adopted For The Analysesmentioning

confidence: 99%

Complex Networks Theory for Evaluating Scaling Laws and WDS Vulnerability for Potential Contamination Events

Nicolini¹

2020

Water

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In the last few years, water utilities have recognized the importance of evaluating the safety of water distribution networks from the potential risks of contamination, arising from failures or from intentional (targeted) or random attacks. Research literature has been recently focused on the optimal design of efficient detection systems, generally expressed as the problem of the optimal placement of monitoring sensors. In this paper, we introduce a methodology for calculating an index of vulnerability that represents the tendency of an injected contaminant to spread over the network. Epanet quality simulations are performed in order to determine the distribution function of the number of potentially contaminated nodes. The results show how such distribution is overall fitted by a stretched exponential law. The comparison with an auto-similar, tree-like network (described by a power-law) allows the determination of the Vulnerability Index, which quantifies how “far” the behavior of a given system deviates from pure scale-freeness. It is analytically calculated by a two-fold approximation of the stretched exponential and provides an alternative way of evaluating robustness against random water contamination. Different networks can then be directly compared, in order to assess and prioritize control measures and interventions.

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Section: Characteristics Of the Real Wdss Adopted For The Analysesmentioning

confidence: 99%

Complex Networks Theory for Evaluating Scaling Laws and WDS Vulnerability for Potential Contamination Events

Nicolini¹

2020

Water

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“…In these last years, the rapid improvement in sensor technology and in data transfer and communication systems has greatly enhanced the activity of real-time control of water losses, although many problems remain unsolved: first of all, the possibility of identifying a leakage since its first formation [14].…”

Section: Literature Reviewmentioning

confidence: 99%

Localization of Emerging Leakages in Water Distribution Systems: A Complex Networks Approach

Nicolini¹

2019

Adv. sci. technol. eng. syst. j.

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Water distribution networks are infrastructural systems designed for providing potable water to consumers. In these last decades, the importance of assessing and identifying emerging leakages has become a primary issue, because of the high level of water loss characterizing such systems worldwide. In this paper, a new approach aimed at the prompt localization of leakages occurring in water distribution systems is introduced. The methodology relies on the analysis of real-time pressure measurements and on Complex Networks Theory. Starting from a collection of nodes representing the locations of pressure sensors, links of a virtual, complex network are created on the basis of the values assumed by correlation coefficients between pressure measurements: if such values are above a given threshold, relevant nodes are considered to be connected to each other. In this way, information about the structure and topology of the complex network is easily derived. In particular, the degree centrality of the nodes is a key parameter allowing to identify the position of a leakage. The paper first analyzes a well-known literature example, and then proves the high reliability of the methodology for a real water distribution system.

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“…Information and Communication Technology (ICT) for efficient water resource management [13] uses sensors, network infrastructure, middleware, and control module to regulate the flow of water and save the resources in the environment. Model calibration [14] in real-time distributed water network system monitors the water pressure and flow in the water pipe system. The network and water flow parameters are transmitted through GPRS to the server.…”

Section: Proposed Mobile Middleware Application For Real-time Watmentioning

confidence: 99%

Mobile middleware application and services for real-time water pump system

Krishna

Goyal

2015

2015 2nd International Conference on Signal Processing and Integrated Networks (SPIN)

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Mobile Middleware layer functions between the application layer and network layer, and uses the system services of mobile operating system. Mobile middleware provides adaptable and application specific services between the mobile devices, heterogeneous computing devices and the internet connected application services. Several applications such as mHealth, SmartHome, mCommerce, Smart Shopping, sensor-based traffic controller, agriculture monitoring and structural sensor building use mobile middleware to enhance the application services. Pervasive middleware aims at providing context manager services for high-level application requirements and underlying heterogeneous device connectivity in the network. In this article, we propose Mobile Middleware Application and Services for Real-time Water Pump System. The proposed middleware application senses the flow of water supply in the pipe, receives the control signals from the Water Level Sensor (WLS) and stops the water pump system when the tank gets filled. SMS alert messages are sent to the registered user. The proposed mobile middleware applications save the energy and water resource respectively.

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Model calibration and system simulation from real time monitoring of water distribution networks

Cited by 8 publications

References 4 publications

Complex Networks Theory for Evaluating Scaling Laws and WDS Vulnerability for Potential Contamination Events

Complex Networks Theory for Evaluating Scaling Laws and WDS Vulnerability for Potential Contamination Events

Localization of Emerging Leakages in Water Distribution Systems: A Complex Networks Approach

Mobile middleware application and services for real-time water pump system

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