Environment Control in Biology
Online ISSN : 2185-1018
Print ISSN : 0582-4087
ISSN-L : 0582-4087
Cultivating Support System Using AI-Computer
(2) Diagnostic Expert System (DES) for NFT-Hydroponic
Kenji HATOUYasushi HASHIMOTO
Author information
JOURNAL FREE ACCESS

1991 Volume 29 Issue 1 Pages 51-55

Details
Abstract
Diagnostic expert system (DES) for NFT-hydroponic culture is designed and examined based on a computer integrated cultivation system (CICS) .
DES is composed of four frames of knowledge referred to as“searched out mechanical and electric error functions on sensors, ”“searched out error functions on controllers, ”“continuous control”and“searched out error functions caused on crops, ”and these frames consist of production rules. Measurement data are compared with simulated data from system identification on autoregressive (AR) model. In case of these differences increasing, DES will search out error functions and continuously control.
In this paper, DES diagnosed trouble caused by an ion-sensor. DES searched out an error function on the ion-sensor, and continuously controlled ion-concentrations.
DES uses not only ion concentration control but also other applications. For automation of cultivation and control in NFT-hydroponic culture, CICS as proposed in this paper is the most suitable system at the moment.
Content from these authors
© Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists
Previous article
feedback
Top