This post will focus on case studies and method that already used to solve the problem in intelligent irrigation system with multi input for autonomous decision by the system.
1. Gims: A Web-based Greenhouse Intelligent Management System
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Author:
M.T. Maliappis, K.P. Ferentinos, H.C. Passam and A.B. Sideridis
Journal:
World Journal of Agricultural Sciences 4 (5): 640-647, 2008 ISSN 1817-3047
Abstract:
This paper describes a system developed to introduce computer management into the cultivation process in low-tech greenhouses. The proposed system is implemented as a web-based application using open source technologies and subsystems comprised of modules that provide: (1) static information about the cultivation process and marketing of the supported crops, (2) simulation and forecast models of general interest, (3) a collaboration environment and (4) expert system capabilities and support. Modular construction of the system allows easy adaptation to new products and expansion into new languages. The centralized management of information and knowledge provides approved and better quality of services. Greenhouse Intelligent Management System (GIMS) is designed to provide personalized consultation to its users. The consultation process is guided by input data provided separately by each user. After an initial authentication, the user can interact with the system individually in a personalized environment. Each user has his/her own protected storage space where he/she can store his/her data separately from those of others. The system offers a way to supervise the cultivation process, maintain records of user activities and is able to transmit special alerts for necessary actions. The overall process is monitored by an intelligent decision support system which takes into consideration the data provided by the user, as well as the results of the special models and expert systems, so that specialized advice for each individual case is given. At the present stage of development the system provides support for three crops: tomato, pepper and aubergine.
Result and Conclusion:
This paper describe about development story of building web-based management system for greenhouse, ideal system, module that it should be exist on web-based management system, especially for greenhouse management.
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[CS] gim web based green house monitoring system
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2. Scheduling strawberry irrigation based upon tensiometer mesurement an a climatic water balance model
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Author:
Erika KruÈger
Journal:
Scientia Horticulturae 81 (1999) 409±424
Abstract
A field experiment was carried out over three cropping seasons with 1 year old strawberry plants (Fragaria x ananassa Duch. `Elsanta’ and `Honeoye’), where irrigation was scheduled based upon tensiometer measurements and a climatic water balance model. Both irrigation schedules were compared to the non-irrigated one. The influence on fruiting response, the impact on soil moisture tension, mineral nitrogen content in the soil and nitrogen content in the leaves were investigated. In all the years, irrigated plants had significantly higher yields than the non-irrigated ones. The mean fruit weight was also increased by irrigation. Optimization of irrigation was best achieved in both varieties when the climatic water balance model was used to schedule irrigation. During dry periods, soil moisture tension under non-irrigated strawberries increased to values above 300 hPa at 20 cm soil depth. In a year, with dry conditions and high evapotranspiration, maximum values above 700 hPa were reached. Differences in soil moisture were observed between the two irrigation schedules within and over the years of the experiment. The hydraulic gradients calculated from tensiometer measurements showed that in the periods with irrigation, percolation did not occur below 40 cm soil depth. Therefore, leaching of mineral nitrogen out of the rooted area of strawberries could be excluded for both irrigation schedules. The nitrogen level in dry leaf matter was not influenced by irrigation, except in one year when irrigation followed the climatic water balance model. The present study shows the potential to optimize the irrigation of strawberries using the climatic water balance model, which is less labour intensive and time consuming than tensiometer measurements. Besides the economical aspects, the results from the analysis of different soil parameters indicate that scheduling irrigation based upon this model was also environmentally safe.
Conclusion and Review:
This paper tell us about the influence of irrigation to plant and climate aspect (soi moisture content, hydraulic gradient,water balance, Nitrogen level). This paper shows the potential to optimize the irrigation of strawberries using the climatic water balance model, which is less labour intensive and time consuming than tensiometer measurements.
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3. A Study On Development Of Intelligent Irrigation Systems For Melon Cultivation In Greenhouse
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Author:
Kazuhiro Nakano
Journal:
AFITA 2002
Abstract:
The price of melon varies with its quality. It is very difficult to control the quality of melon in various growing stages, because irrigation management in a green house influences the fruit quality. In this study, the intelligent irrigation systems were developed using the know-how extracted from an expert. Fuzzy control and On-off control for irrigation were examined. Changes in soil moisture content were predicted by Fuzzy control systems with various climate sensors. As the results, the performances in Fuzzy control and On-off control were respectively 52% and 40% water saving compared to the manual irrigation by an expert. The qualities of fruits by Fuzzy control and On-off control were almost the same results from the manual irrigation.
Conclusion and Review
- Both the Fuzzy control area and On-off control area gave considerable water savings over the Manual-irrigation area, while both produced fruit of similar quality (sugar content and grade) to that in the Manual-irrigation area.
- The above shows that the present systems for automatic irrigation control of greenhouse melons are effective.
- No clear difference was seen between the Fuzzy control and On-off control areas.
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[CS] a study on development of intelligent irrigatio system for melon cultivation in green house
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