Distributed system for pollution analysis based on GPRS mobile communications

In this paper the implementation of a distributed system for the control of a chemical analysis system is proposed. This work presents the design of the proposed distributed system, describing the nodes architecture, communications system, control strategies, etc. as well as the chemical implementation aspects, such as selection of parameters to be monitored, analysis techniques, acceptable values, and so on. From the chemical point of view, the parameters to be controlled and their acceptable levels are based on the current legislation. As for the methods of analysis for the detection of pollutants, well-known electrochemical methods are proposed. The communication among the nodes that form the distributed system is implemented by means of the utilization of data transmission services (like GPRS) provided by a mobile telephone operator. The information is processed, integrated and stored in a control centre. These data can be retrieved-through the Internet-so as to know the real-time system status and its evolution.