Intelligent Water Dispensing System Model Utilizing AAA Framework

Clean Water is one of the most precious resource which mankind cannot do without. However through lack of water conservation techniques our future might have scarce clean water. This paper proposes a demand side approach to water conservation. This involves an intelligent water dispensing system model which utilises the AAA framework. This provides for authentication, authorisation and accounting. Two Solenoid valves are used to mimick two flow rates. All the intelligence is build in a PIC18F4520 microconroller. This interfaces with a 4x4 keypad and 2x16 LCD display. The system uses users with different priviledge levels. The system was tested and required levels of access and restrictions to the water usage were demonstrated successfully. With the current shortages of water in many parts of the world such a system proves to be of great value and also versatile, where it can find use in a variety of applications were access to resources needs to be restricted to a selected number of people and were the resources available needs to be used sparingly.