The ITG Digital Greenhouse Climate Control System for Energy Conservation
1981; Elsevier BV; Volume: 14; Issue: 2 Linguagem: Inglês
10.1016/s1474-6670(17)64011-4
ISSN2589-3653
Autores Tópico(s)Greenhouse Technology and Climate Control
ResumoFor the use in German greenhouses a microcomputer system has been developed for greenhouse climate control. The system consists of a commercial microcomputer from SWTPC, using the Motorola 6809 microprocessor, and a few interfaces. The multiplexers are installed decentral in the areenhouses. Thev are connected via an analog and a digital bus system to the central microcomputer. The programs are written mainly in Extended Basic. The block structure of the programs allows easy changes and extensions. In a first step Drograms have been written for improving the greenhouse climate control by using self tuning control algorithms and a simplified model of the greenhouse in order to get a dynamic model of the influence of outside weather conditiones on the inside climate. The comparison of calculated and measured values allows a continous adaption of the parameters of the model.
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