Real-time water quality system in internet of things

Abstract

Wireless Sensor Network (WSN) in Internet of Thing (IoT) is used in different areas of research for monitoring, collecting and analysing data from remote sites. This paper presents a WSN based reconfigurable interface device for water quality monitoring (WQM) in an IoT environment. The proposed WQM system consists of sensors, Field Programmable Gate Array (FPGA), Zigbee wireless communication protocol and personal computer. The system is designed for monitoring water quality such as water temperature, water level, water pH, turbidity of water and Carbon dioxide on the surface of water. The FPGA board is the heart of the system and a Very High Speed Integrated Circuit Hardware Description Language and C++ are used for software system of the proposed designed device. The proposed system collected the data in parallel and in real time basis with high speed from multiple different sensor nodes. The results of the proposed system were validated with the laboratory experiments. Based on the results, it can be concluded that there was no significant difference of water data measurement between the proposed system and the laboratory measurement. The proposed WQM system was able to minimise the operating time, cost and power consumption.