DBPapers
DOI: 10.5593/sgem2012/s20.v5002

A DISTRIBUTED CONTROL SYSTEM FOR GREENHOUSE ENVIRONMENT APPLICATIONS

A. DUMITRASCU, D. STEFANOIU
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 5, 5 - 12 pp

ABSTRACT

The paper speaks to an important subject in the current situation of environmental
resources, such as efficient control of the process of irrigation plants in greenhouse
conditions. Therefore, it is submitted a comprehensive application that aims to be a
distributed control system including data acquisition and processing, both local and
remote monitoring and control of the process parameters. The distributed control system
is based on modern equipment: Siemens Simatic PLCs and HMI, Memsic ēKo Pro
wireless sensors network, level sensors for irrigation tanks and actuators such as on/off
valves and pumps. In terms of communication between equipments, an industrial bus
and protocols were used – Profinet, MPI, AS-I and wireless communication. The
software part is provided by STEP 7, WinCC flexible RT and LOGO! Soft Comfort for
programming of the automation devices, C language for communication protocol
development, and HTML, JavaScript and PHP for Web interface of the remote process
control.

Keywords: distributed system, PLCs and HMI network, remote control