Wireless sensing and control for precision Green house management

Precision Green house management based agriculture is a combination of integrated information and production-based farming system that is designed to increase long term site-specific farm production efficiency and profitability while minimizing unintended effects on green house environment. It requires intensive sensing of the climate conditions at ground level and rapid communication of data to the central repository. Wireless sensor network is an emerging field that can be used to monitor and control the agriculture parameters in order to make intelligent automated agriculture system inside the green house. The system basically comprises of CPU for monitoring the data in LABVIEW platform and Zigbee module along with PIC microcontroller to establish wireless communication between two distant locations. The main purpose of the work undertaken in this paper is to sense, monitor and control the temperature, humidity and irrigation in the greenhouse from remote location using the Zigbee technology at low cost. The wireless transceiver is configured using TMFT 2.6 software provided by Melange Systems and PIC microcontroller is programmed using Microchip´s IDE version 8.2. This technology is intended to be the simpler and cheaper than any other WPANs such as Bluetooth or wireless internet node. In the present work the data from sensing node after amplification is fed to ADC and then to the microcontroller. This is then connected to the Zigbee module which transmits the data to the Zigbee module at the other end. It reads the data and displays on to the host computer through Labview and the control sequence is generated to control the green house parameters from the control room wirelessly.