Now a day due to explosion of technology number of systems get developed. These systems need help of expert for working properly. But it is highly difficult for the experts or technical persons to attend each of these systems for proper maintenance, up gradation or updating. Hence we are presenting a prototype Remote Monitoring System. This concept definitely helps in saving time & energy of experts. These systems provide flexibility & also help in caring back control information much faster to those remote systems. Project goes through different steps. Firstly it monitors different parameter at destination location using different sensors. Then outputs of different sensors, like Light, humidity, moisture, temperature, are converted to digital using ADC. These parameters are collected at microcontroller and then sent over wireless network using GSM module to remote host. We used SMS facility of GSM service provider as it is low cost, reliable and can provide delivery report. The parameters sent by GSM module are received by Central Database system (CDS) using GSM modem/mobile/module with help of AT commands. Aim of this work is to provide communication between remote machines & to take the necessary control action by correlating data collected by those machines used in Greenhouse automation system. Project proposes a prototype for remote monitoring of greenhouse agricultural plant, consist of different modules as Sensors, GSM transmitter, GSM receiver modems, microcontroller- AT89C51RD2 and actuators like relays.
