Essity Hygiene and Health Aktiebolag

Daniel Lindstedt

Annie Thorburn

Maria Zevgren Sundberg

Annie Sporre Thorburn

Maciej Walesiak

A method is provided for detecting presence and absence of a creature. The method includes, receiving an input signal from a radiation sensor; applying a first low-pass filter to the received input signal with a first time constant and generating a first filter output; applying a second low-pass filter to the received input signal with a second time constant and generating a second filter output. The method also includes determining a presence of a creature by comparing a slope of the first filter output to a predetermined value; and determining an absence of the creature based on further processing. A corresponding device for detecting presence and absence of a creature is also provided.

Growing community of inventors

Lund, Sweden

Daniel Lindstedt