(c) Luis Iribarne. Departamento de Lenguajes y Computación. Universidad de Almeria
Ctra Sacramento S/N, CP: 04120, Almeria. Edif CTIII, 2da planta, despacho 2-11.
URL: http://www.ual.es/~liribarn, e-mail: liribarn@ual.es


 
 
COMPUTER AIDED DESIGN FOR THE CONSTRUCTION OF AUTOMATED GREENHOUSES
The objective of DAMOCIA is the application of ITs onto the design of new greenhouse structures, adapted to semi-arid zones (including south-eastern Spain). Its result is a tool-set: DAMOCIA-Design, DAMOCIA-Sim (simulation), DAMOCIA-Exp (experimental data exploitation) and DAMOCIA-Control.
 
Summary

 

The active climate control commonly used in greenhouses in northern Europe is not appropriate to Mediterranean conditions. Greenhouse technology in Spain is now being enhanced through computer-aided design to help Spanish farmers to maintain an edge in an increasingly competitive market. In design tool named DAMOCIA has been developed which can de used by agronomic technicians for generating complete greenhouse development projects, including plans and budget, This has already been used to produce a commercial exploitable greenhouse incorporating new design features. The development has also increased understanding of greenhouse processes.
DAMOCIA is part of the PACE (Plan de Accion CIM para Espana) action , aimed at improving awareness of automation technologies in Spain and encouraging their development by the Spanish IT industry. To date, PACE has funded R&D industrial projects in Spain for developing marketable advanced computer-integrated manufacturing (CIM) products.


A greenhouse 


Business perspective

 

In order to maintain and improve the development reached in the Mediterranean mild winter regions, market liberalisation demands better product quality and harvest opportunities from crops grown in greenhouses. At this moment, we can differentiate two major approaches to crop growing in greenhouses:
· High-cost greenhouses of high yield and active microclimatic conditioning (North- Central Europe).
· Low-cost greenhouses of medium yield, normally passive, taking advantage of favourable outside climatic conditions (Mediterranean region). In this case, the improvements required can be achieved by enhancing the microclimatic conditions of the greenhouses, via the development of new greenhouse structures with better possibilities of microclimatic conditioning.
The potential markets for our tools are:
· The province of Almeria, with more than 27,000 ha requiring a periodical renovation.
· The Mediterranean regions, specially the Maghreb.
· The semi-arid regions of Latinamerica.
The main advantages of using DAMOCIA tools are:
· Extended harvest period, fruit quality and improvements in regularity.
· Better price-quality ratio (standard parts, chain assembling and higher automation).
· Automated elaboration of greenhouse projects (plans and budgets)
· Capacity to select from a set of greenhouse structures with different automation levels.
· Observance of EU and national standards.
· Previous simulation of different alternatives.
 
Technical perspective

 

The principal result of the DAMOCIA project has been the development of computer tools for the validation and exploitation of experimental data to help technicians design greenhouses in maximum technical detail. In conjunction with these is the development of an automatic generator of reports and budgets. This systematic and integrated approach replaces traditional design methods, which tended to be based on an ad hoc empiricism.
In addition of the software developments, the project has produced spin-off in terms of an increased knowledge of technical aspects of greenhouse operation and design.


Inside of greenhouse 


Applications

The experimental research, including greenhouse construction and data collection, was carried out at the Experimental Centre of the Foundation for the Agricultural Research of Almeria Province (F.I.A.P.A). Training courses were offered on greenhouse construction and introduction to several enterprises and farmers' associations. Software was implemented at these installations and at the University of Almeria. An office was set up in the Novedades Agricolas installations to show the design tool to the zone market. At the moment, new installations are being built to demonstrate the different tools and their results in Dunia Export, located in the zone where there is the biggest growing concentration. The main goal is to test the products commercial exploitation and distribute them out among the farmers associated with that enterprise. A model has been built to be shown outside the permanent installations, which are also used for teaching at the University of Almeria.
 
Terms and conditions

The use and exploitation rights for teaching the different modules (especially the simulation module and the behaviour models) to the University of Almeria (AGR-0172 Research Group) which will be able to distribute them with this aim. 
An agreement was made to create a company between the project business members and a manufacturer or greenhouse maker to manufacture greenhouses. This company would be the depository of the design tool rights in order to draw up and validate some greenhouse proposals without the need to build the prototypes physically.
The tool-set and models are, at present, in the process of legal registration. Before long, physical protection in software is expected to be included for its distribution.


Construction of a building 


Related links

Business sectors
Manufacturing and engineering
Professional and business services
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Keywords
CAD/CAM/CIM; Distributed systems; Design; Control system; Simulation; Modelling
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Countries
Spain
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Project
PACE - 7510
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Programme domain
ESPRIT - Integration in manufacturing
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Revision date
12-Aug-1999
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(c) Luis Iribarne. Departamento de Lenguajes y Computación. Universidad de Almeria
Ctra Sacramento S/N, CP: 04120, Almeria. Edif CTIII, 2da planta, despacho 2-11.
URL: http://www.ual.es/~liribarn, e-mail: liribarn@ual.es