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WARMER: a project for water monitoring system design

This paper presents a problem of design of on-line water monitoring systems including electro-chemical sensors. In systems like this several basic problems have to be solved, e.g. sufficient quality of sensor fabrication, appropriate sensor conditioning and water sample treatment, sensor signal processing for good measurement accuracy/precision, environmental data transmission/storage and Web connectivity of the system. We focus on multiple-sensor signal processing (Data Fusion) for improvement of measurement accuracy/precision. This in turn calls for sensor response modelling, data processing algorithm design and implementation in measurement system firmware (a hardware-software co-design problem). A demonstrator measurement system has been designed and built to verify applicability of proposed technology to European water monitoring.