Secure interoperable gateway for wireless SCADA system

As the industries are growing day by day there should be a system for the owner/end users to monitor and control of industrial parameters remotely such as temperature humidity pressure etc. The SCADA system is the best solution for monitoring and control of remote field parameter. But the fast growing software technologies have formed the advance version of Supervisory Control and Data Acquisition (SCADA) system. This advance version of the SCADA is known as wireless SCADA system. This paper presents the concept of how the remote areas like industry, commercial, or market regions can be monitored and controlled through wireless SCADA system. The various sensors brings the information about field parameters and forwards it to the Remote Terminal Unit (RTU) to which they are connected. The RTU stores all the information in its database and provides it to the Control Centre in MODBUS protocol format on request. The remote terminal unit and the control centre are connected via wireless communication medium by Global System for Mobile Communication (GSM) /General Packet for Radio Service (GPRS) modems. Every packet before sending over the network is encrypting using an Advanced Encrypting Algorithm (AES). This leads to more secure communication and also avoids the attack from intruders.