Abstract
This paper deals with a description of a unique system for borehole temperature measurement, and its consequent Web application for data visualization based on OPC communication and FTP access. There are some short descriptions of the Big Research Polygon (BRP), and the Small Research Polygon (SRP) - main parts of the largest heating system with heat pumps in the Czech Republic. They serve not only for scientific and education purposes, but also for problem of renewable energy resources. Each of these boreholes contains some temperature sensors (analogue, digital) connected to some PLC/PAC systems for data acquisition, data processing, and their saving to a measurement file. A Web application uses possibility of dynamic HTML pages created in PHP programming language. Current version of this application reshapes measurement data (from boreholes and heat pumps) into some general tables in dependence on borehole competency, and heat pump parameters, such as mass-flow, density, or volume-flow. In the future it is planned to use MS SQL database system.
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