A series of mechanical backup systems for electronic environmental controllers is presented for a typical finishing swine barn and a typical tunnel ventilated broiler house. The systems consist of mechanical thermostats and timers used in parallel with the electronic controller, designed to ensure animal survival in the event of controller or related hardware failure. For swine housing, three distinct mechanical backup functions are identified; for broiler housing, four distinct mechanical backup functions are identified. Schematic diagrams of the mechanical backup functions are provided and their implementation is described.
Digital Object Identifier (DOI)
The investigation reported in this paper (No. 91-2-95) is in connection with a project of the Kentucky Agricultural Experiment Station and is published with the approval of the Director.
Gates, Richard S.; Overhults, Douglas G.; and Turner, Larry W., "Mechanical Backup Systems for Electronic Environmental Controllers" (1992). Biosystems and Agricultural Engineering Faculty Publications. 120.
Animal Sciences Commons, Bioresource and Agricultural Engineering Commons, Controls and Control Theory Commons, Electrical and Electronics Commons, Environmental Sciences Commons, Systems and Communications Commons