Alarm Reporting in River Information System

Abstract

This paper gives a description of the most significant parts of the development of the Alarm Reporting Subsystem of the River Information System (River IS). River IS will provide efficient waterway related data management at national level for the Croatian part of the Danube River. Our research in that area dates from the year 2000, and since 2003 is carried out within the CROatian River Information Services (CRORIS) project. In this paper, first the main functionalities of River IS are outlined, and then the alarm reporting process is described in detail. We were interested in alarms and regular status checks from buoys and floats positioned along the river and regular status checks of displays from the bridges. Provision of measurement data from the floats as well as water level data along the river was also required. For modeling of the requirements the UML Use Case diagram was used and based on it and the characteristics of chosen SVG (Scalable Vector Graphics) and Web technologies the Class diagram representing the Static Structure was developed. Along with the description of the diagrams, especially the characteristics of the alarming and SVG technologies were discussed. In the end, an example of the map interface with explained access to reports is shown.