Abstract: A system for providing information about presence in a space includes a movement sensor for generating a signal upon detecting movement; and a presence sensor for generating a signal upon detecting presence, being a temperature-based matrix sensor having an array of sensing elements. The system further includes a processing and/or control component in communication with the movement and presence sensors, configured to generate a presence signal upon receiving the first and/or second signals; and configured to obtain background information of the presence detection field. The information includes reference temperature values and are obtained upon the movement sensor not detecting movement and/or the presence sensor detecting presence. For each sensing element with presence, using the measured temperature value of surrounding sensing elements not having presence.

Abstract: A system for providing information about presence in a space includes a movement sensor for generating a signal upon detecting movement; and a presence sensor for generating a signal upon detecting presence, being a temperature-based matrix sensor having an array of sensing elements. The system further includes: a processing and/or control component in communication with the movement and presence sensors, configured to generate a presence signal upon receiving the first and/or second signals; and configured to obtain background information of the presence detection field. The information includes reference temperature values and are obtained upon the movement sensor not detecting movement and/or the presence sensor detecting presence. For each sensing element with presence, using the measured temperature value of surrounding sensing elements not having presence.