Philips Lighting Holding B.v.

Koninklijke Philips Corporation N.v.

Signify Holding B.v.

Michel Albertus Theodorus Klein Swormink

Jurgen Mario Vangeel

Roger Peter Anna Delnoij

Petrus Antonius Verbeek

Johannes Jozef Wilhelmus Kalfs

Johannes Martinus Maria Hensing

Michiel Adriaanszoon Klompenhouwer

Ashish Vijay Pandharipande

Marcel Beij

Willem Franke Pasveer

Marco Haverlag

Wijnand Johannes Rietman

Biju Kumar Sreedharan Nair

Marek Zbigniew Szczerba

David Ricardo Caicedo Fernández

Jelena Matovina

Geert Bart Neuttiens

Vincent Antoine Josephus Luijcks

David Ricardo Caicedo FERNáNDEZ

Wijnand Johannes Rietmann

The invention provides a lighting system and a lighting control component for such a system. The components are battery-operated, and include a remote control signal receiver for receiving commands and configurations during commissioning. A disabling system is provided for enabling and disabling the remote control signal receiver, such that the remote control signal receiver is enabled when a commissioning process of the lighting system is expected and disabled when a commissioning process of the lighting system is not expected. This reduces the power consumption of the component after the commissioning is complete but provides ease of use during commissioning.

Lighting system commissioning

A signal processing module for use with a receiver for receiving echoes of an emitted signal. The signal processing module comprises sensing logic for sensing presence of a being or object in a space using echoes of the signal as reflected from the being or object, wherein the echoes are received with an associated frequency band. The signal processing module further comprises control logic for detecting disturbance having potential to compromise said sensing, wherein the signal processing module is configured to detect this disturbance by listening for an unwanted signal in a region of the spectrum outside the frequency band of the echoes, and to adapt the sensing in dependence on the detected disturbance.

Mitigating disturbance in sensing

The present invention relates to a method for controlling a lighting device in a daylight harvesting system. When a user tampers with a sensor, in order to decrease the light level light level measured and therefore increase the light intensity of the lighting device, the tampering is detected. Based on this tamper detection the light intensity of the lighting device is controlled based on a set value (e.g. 70% dimming).

Anti-tampering daylight harvesting system

An apparatus comprises a first light sensor configured with a first field of view; and a second light sensor configured with a second, narrower field of view contained within the first field of view. The first and second light sensors may be arranged to detect light reflected from an illuminated surface, wherein the first and second field of view encompass light from an electric lighting device reflected from said surface and additional light reflected from said surface, e.g. natural light; but the second light sensor is concentrated on a region on said surface so as to exclude glare from objects outside said region, whereas the first field of view extends beyond said region. An illumination level of the environment in which the apparatus is installed may be adjusted to compensate for a change in the additional light based on information distinguishing between the two sensors.

Illumination sensor for distinguishing between different contributions to a sensed light level

A controller comprising: presence detection logic, calibration logic, and an input for receiving a reading from a light sensor representing a sensed light level. The presence detection logic is for detecting presence events based on a presence sensor, and is configured to indicate a set-point to operate at least one lighting device in dependence on a positive detection of presence. The calibration logic is for performing a calibration operation, which is performed by causing a light output of the lighting device to change between a first, lower level and a second, higher level, and by and calibrating the set-point based on the reading from the light sensor under influence of the first and second levels. The calibration logic is configured to trigger this calibration operation in response to the positive detection of presence.

Calibration operation of a lighting device

A network of active sensors in a control system is considered. The active sensors, which may be fixed-infrastructure sensors, provide presence detection information to a distributed lighting system. The active sensors communicate by transmitting probe signals. The communication of probe signals may result in cross-interference which may vary in time. Cross-interference is detected, and can later be avoided, by determining a difference between signals received in a first part of a timeslot and signals received in a second part of the timeslot. In order to do so probe signals comprising two non-zero pulses are transmitted in respective parts of the timeslot. Applications are, for example, active presence sensors in lighting control applications in indoor as well as outdoor environments.

Control of lighting devices

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Eindhoven, Netherlands

Michel Albertus Theodorus Klein Swormink