A - Human Necessities – 01 – G
Patent
A - Human Necessities
01
G
354/29, 341/32,
A01G 9/24 (2006.01) G05B 15/02 (2006.01)
Patent
CA 1207058
Plant Oriented Control System 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.
440920
Oglevee James R.
Oglevee Kirk A.
Oglevee Computer Systems
Smart & Biggar
LandOfFree
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