Abstract
The paper proposes a wireless solution, based on GSM (Global System for Mobile Communication) networks [1] for the monitoring and control of humidity in industries. This system provides ideal solution for monitoring critical plant on unmanned sites. The system is Wireless [2] therefore more adaptable and cost-effective. Utilizing Humidity sensor HSM-20G, ARM Controller LPC2148 and GSM technology this system offers a cost effective solution to wide range of remote monitoring and control applications. Historical and real time data can be accessed world wide using the GSM network. The system can also be configured to transmit data on alarm or at preset intervals to a mobile phone using SMS text messaging. The proposed system monitors and controls the humidity from the remote location and whenever it crosses the set limit the LPC2148 processor will sends an SMS to a concerned plant authority(s) mobile phone via GSM network. The concerned authority can control the system through his mobile phone by sending AT Commands to GSM MODEM and in turn to processor. Also the system provides password security against operator misuse/abuse. The system uses GSM technology [3] thus providing ubiquitous access to the system for security and automated monitoring and control of Humidity.
Highlights
Remote Monitoring, Control and intelligent maintenance is one of the most important criteria for maximizing production and process plant availability
The primary aim of this paper is to propose the concept of Development of a Low-Cost GSM SMS-Based Humidity Remote Monitoring and Control system for Industrial Applications using the combination of a Embedded ARM Controller (ARM7 TDMI-S LPC2148) [10] and a GSM communications module linked by a serial communications port
The authority(s) concerned to the plant can control the threshold value by changing the humidity value or by switching ON the Bulb by sending AT commands to GSM MODEM, which will be directed to the processor
Summary
Remote Monitoring, Control and intelligent maintenance is one of the most important criteria for maximizing production and process plant availability. The common conditions of use of SCADA systems [6] only allow for control and supervision to take place when the operator and the plant being observed are in the same general vicinity. It led to the emergence of the wireless remote monitoring and control systems. Measurement and control of relative humidity [7] has significant appliance in industry, science, healthcare, agriculture and controlling technological processes. This is the main objective and focus of the present work
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