A Distributed Data Acquisition System for the Sensor Network of the TAWARA_RTM Project

Publication date: 2017 Source:Physics Procedia, Volume 90 Author(s): Cristiano Lino Fontana, Massimiliano Donati, Davide Cester, Luca Fanucci, Alessandro Iovene, Lukasz Swiderski, Sandra Moretto, Marek Moszynski, Anna Olejnik, Alessio Ruiu, Luca Stevanato, Tadeusz Batsch, Carlo Tintori, Marcello Lunardon This paper describes a distributed Data Acquisition System (DAQ) developed for the TAWARA_RTM project (TAp WAter RAdioactivity Real Time Monitor). The aim is detecting the presence of radioactive contaminants in drinking water; in order to prevent deliberate or accidental threats. Employing a set of detectors, it is possible to detect alpha, beta and gamma radiations, from emitters dissolved in water. The Sensor Network (SN) consists of several heterogeneous nodes controlled by a centralized server. The SN cyber-security is guaranteed in order to protect it from external intrusions and malicious acts. The nodes were installed in different locations, along the water treatment processes, in the waterworks plant supplying the aqueduct of Warsaw, Poland. Embedded computers control the simpler nodes, and are directly connected to the SN. Local-PCs (LPCs) control the more complex nodes that consist signal digitizers acquiring data from several detectors. The DAQ in the LPC is split in several processes communicating with sockets in a local sub-network. Each process is dedicated to a very simple task (e.g. data acquisition, data analysis, hydraulics management) in or...
Source: Physics Procedia - Category: Physics Source Type: research