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公开(公告)号：EP2534546A2
公开(公告)日：2012-12-19
申请号：EP11742671.8
申请日：2011-02-08
IPC分类号： G05B19/418
CPC分类号： G05D7/06 , G05B19/0421 , G05B2219/25356
摘要： A distributed control system is provided wherein a master controller inductively delivers power and data to a plurality of remote slave modules or controllers via a plurality of coupling loops formed along a length of transmission line. Each of the remote slave modules, in turn, inductively delivers return data to the master controller via the plurality of coupling loops. The use of inductive coupling provides an advantage over the state of the art because no direct galvanic electrical connection is required between the transmission line and the remote slave modules which promise to simplify installation and enhance long-term reliability. Example applications for the control system described herein include agricultural irrigation systems where individual sprinkler and valve components may be controlled collectively, individually, or in groups or subsets, to vary application rates according to prescribed irrigation parameters.
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公开(公告)号：EP1781413A2
公开(公告)日：2007-05-09
申请号：EP05769148.7
申请日：2005-06-30
发明人： SINDEN, Joseph, D. , NESS, Rex, D. , LEINWEBER, Chad, D. , BERRIER, Richard, J. , NELSON, Craig , RUPAR, Robert
CPC分类号： A01G25/097
摘要： A linear water feed apparatus for use in agricultural irrigation includes a linear-move machine with a mobile truss assembly supporting a plurality of individual sprinklers and adapted for movement in a specified direction across a field to be irrigated. The truss assembly is oriented transverse to the specified direction, and a supply pipe is arranged in the specified direction along or within the field to be irrigated. The supply pipe mounts a plurality of water supply hydrants at spaced locations along the pipe, each of the hydrants enclosing a water supply valve. A docking station is supported at one end of the truss assembly closest to the supply pipe, and is adapted to engage and open successive ones of the water supply valves in the plurality of hydrants. The docking station assembly includes a docking station that is suspended from a frame for floating movement about at least three mutually perpendicular axes.
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