La Monte D. Porter,Peter J. Woytowitz,Christopher M. Shearin
申请号：
US13011301
公开号：
US08548632B1
申请日:
2011.01.21
申请国别(地区):
US
年份:
2013
代理人:
摘要：
An irrigation controller includes a first processor and a memory for storing programming executable by the first processor. The irrigation controller further includes circuitry that enables a communication link that allows direct communication between the first processor and a sensor unit containing a second processor and a plurality of environmental sensors each capable of generating an actual component of ET data. At least one manually actuable control is operably connected to the first processor for inputting further ET-related information selected from the group consisting of plant type, soil condition, growth stage and sprinkler precipitation rate. The irrigation controller further includes programming that enables the first processor to calculate optimum watering schedules based upon the actual ET data and the ET-related information including increases and decreases in the frequency and/or length of ON times for at least one station.
