Plant husbandry – Greenhouse – apparatus or method
Patent
1983-03-08
1984-02-14
Wayner, William E.
Plant husbandry
Greenhouse, apparatus or method
236 44C, 165 21, B01F 302, A01G 900
Patent
active
044308280
ABSTRACT:
A system for controlling environmental conditions in greenhouses having a plurality of crop beds. The system comprises sensors stationed over crop beds comprising an aspirated enclosure and means therein for generating analog electrical signals indicative of wet bulb and dry bulb temperatures. The system comprises a microcomputer located within the greenhouse having a central processing unit with associated scratch memory and program memory sections; an analog to digital input section for receiving the analog electrical signals from the sensors; an output section for converting the computer logic signals to electrical signals at power levels to operate electromechanical apparatus; and serial digital pathway means for connecting the central processing unit, input section and output section. The system further comprises a memory programmed with a task for inputting digital data from the input section indicative of wet bulb and dry bulb temperatures and for calculating the moisture content of the atmosphere over each bed; a task for comparing the temperature and said moisture content with preselected command levels; and a task which in response to said comparison generates commands to the output section capable of initiating therethrough electromechanical action to move the temperature and moisture content toward the preselected command levels.
REFERENCES:
patent: 3905153 (1975-09-01), Enter
patent: 3949522 (1976-04-01), Kehl et al.
"The Effect of Quantum Flux Density, Day and Night Temperatures and Phosphorous and Potassium Status on Anthocyanin and Chlorophyll Content in Marigold Leaves" by A. M. Armitage et al., No. 106(5): 639-642, (1981).
"The Effect of Temperature and Quantum Flux Density on the Morphology, Physiology, and Flowering of Hybrid Geraniums" by A. M. Armitage et al., No. 106(5): 643-647, (1981).
"Determination of Flowering Time and Vegetative Habit of Tagetes patula through Response Surface Techniques" by A. M. Armitage et al., No. 106(5): 632-638, (1981).
"Effect of CO.sub.2 Enrichment on Greenhouse Crop Production" Paper No. 81-4524 by S. K. Upadhyaya et al., (Dec. 15-18, 1981), American Society of Agriculture Engineers.
"Direct Digital Control of Plant Growth-I. Design and Operation of the System", T. Takakura et al., Transactions of the ASEA, (vol. 17, No. 6, pp. 1150-1154, (1974)).
"A Microprocessor-Based Control System for Greenhouse Research", Paper No. 78-5547 by D. H. Willits et al., (Dec. 18-21, 1978), American Society of Agricultural Engineer.
"Energy Management Systems and the SCIRAY Greenhouse Project," Paper No. 81-1606 by H. M. Butterworth et al., American Society of Agricultural Engineers, Acta Horticulturea, No. 106, (Mar. 1980), pp. 67-75; 91-108; 117-125.
Oglevee James R.
Oglevee Kirk A.
Oglevee Computer Systems
Wayner William E.
LandOfFree
Plant oriented control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plant oriented control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plant oriented control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2368688