Patent · US Active

Electronic gardening tool and method of configuring the same

US8938361B2 · kind B2 · utility

0Cited by
2References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 7, 2010
Grant dateJan 20, 2015
Priority date—
Expiry dateNov 20, 2033

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D18/002
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The tools and methods disclosed herein can convert an analog signal from the soil sensor probes into a digital format that can be read by a low cost digital microcontroller which acts on the digital data with formulae and tables so that the displayed information is the same or nearly the same as the readings in the same soil from the analog meters. To provide accurate readings, the described tools can apply either of a fixed or floating calibration method to set a reference of the measured soil pH and moisture measure. The floating calibration method also permits adjustment of the measure reference to correct calibration imprecision induced by fluctuation in the battery voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.