Signify Holding B.v.

Hendrik Stevens

Leendert Teunis Rozendaal

Peter Deixler

Hugo Jose Krajnc

Hugo José Krajnc

Gerardus Wilhelmus Theodorus Van Der Heijden

Pieter Diederik De Vreeze

The invention provides a horticulture system () comprising a plurality of repeating horticulture system units () and a control system (), wherein: each horticulture system unit () comprises (i) a horticulture unit space () and (ii) a radio transmission pair () arranged to monitor the horticulture unit space (), wherein the radio transmission pair () comprises a radio transmitter and a radio receiver arranged in radio signal receiving relationship; the control system () is configured to execute in a unit sensing stage () a measurement in at least one of the horticulture unit spaces () with the respective radio transmission pair (); the control system () is further configured in an operational mode to: (i) execute a first signal sensing stage (), wherein the first signal sensing stage () comprises the unit sensing stage () with a first radio transmission pair () related to first horticulture unit space () thereby providing a first signal () to the control system (); and (ii) determine a plant-related parameter data based on (a) the first signal () and (b) a baseline signal (), wherein the baseline signal () is based on a second signal () obtained with an execution of a second signal sensing stage (), wherein the second signal sensing stage () comprises the unit sensing stage () with a second radio transmission pair () related to a second horticulture unit space () thereby providing the second signal ().

Baselining criteria for RF sensing in horticulture application

The invention is directed to a signal-strength compensating unit () for providing a temperature-compensated received-signal-strength indication value of a wireless signal (W) received by an external wireless receiver from an external wireless transmitter (). It comprises a status determination unit () configured to ascertain operation condition data indicative of at least one current condition suitable for affecting a respective temperature of a wireless-signal reception unit () of the external wireless receiver or of a wireless-signal transmission unit () of the external wireless transmitter and a compensation-parameter determination unit () configured to determine and provide a signal-strength compensation parameter associated to one or more conditions suitable for affecting the respective temperature of the wireless-signal reception unit or of the wireless-signal transmission unit, and to determine a temperature-compensated received signal-strength indication value based thereon, without having to directly determine a temperature value.

Contextual correction of wireless signal-strength sensing for temperature compensation

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WAALRE, Netherlands

Hendrik Stevens