Philips Lighting Holding B.v.

Koninklijke Philips Corporation N.V.

Signify Holding B.v.

Gianluca Monaci

Tommaso Gritti

Harry Broers

Ashish Vijay Pandharipande

Tim Corneel Wilhelmus Schenk

Remco Theodorus Johannes Muijs

Oleg Belik

Daniel Martin Goergen

Petrus Johannes Arnoldus Hubertus Kuijten

Petrus Johannes Arnoldus Hubertus Kuyten

Muhammad Shoaib

Daniel Martin GÖRGEN

According to the invention, a PIR sensor system () comprises a first PIR sensor () associated with a first sensing region () and a second PIR sensor () associated with a second sensing region (). The first and second sensing regions partially overlap and are divided into detection cells (-) and (-). Each detection cell is represented by predetermined characteristics of first and second output signals, which signals are based on input signals from first and second sensing elements (-) of each PIR sensor. Thereby different detection cells are encoded by a certain combination of signal characteristics (amplitude and sign) of the first and second output signals. Further, the PIR sensor system comprises a processing unit () configured to associate the characteristics of the first and second output signals with one of the detection cells for determining in which of the detection cells a heat source is positioned. The invention is advantageous in that production costs of the PIR sensor system are reduced. A calibration method for identifying the correspondence between the detection cells and the output signals at installation is also provided.

Passive infrared sensor system for position detection

The invention provides a light control system for a lighting network, including a plurality of light units wherein at least one light unit includes at least one sensor type, a distributed/centralized controller/central management system in communication with one or more of the light units, said controller/central management system sends control commands to one or more of said light units, in response to received light unit status/sensor information from one or more of said light units and/or status information from a connected device, and implements a lighting strategy relating to the characteristics of the plurality of light units, wherein the one or more neighboring light units' sensor type's detection threshold are adjusted using a predetermined strategy based on the new lighting strategy of the at least one light unit or the status information from the connected device.

Sensor network with adaptive detection settings based on the status information from neighboring luminaires and/or connected devices

A vision system is disclosed having an image sensor for capturing an image, the image sensor having a lens, an image processing unit and optionally a memory unit. The image processing unit is adapted to capture and/or store in the memory, for selected areas of the image, a set of frames from the past, where the division of the image in areas and/or the number of frames from the past depend on lens parameters, position and/or orientation of the image sensor, or image parameters of the captured image.

Vision systems and methods for analysing images taken by image sensors

A method of self-calibrating a lighting device, comprising: &#x2014;monitoring a calibration area, which encompasses at least a part of an area being illuminable by the lighting device; and&#x2014;calibrating the light output settings of the lighting device. The monitoring operation includes repeating: &#x2014;detecting any relevant change, out of a set of relevant changes comprising at least a light intensity change, in the calibration area during a monitoring time, while keeping the light output of the lighting device constant; and&#x2014;determining an amount of change within the monitoring time; until the amount of change is below a limit value. Thereby the lighting device does not perform the calibration until it has detected a period of no or small changes.

Method of self-calibrating a lighting device and a lighting device performing the method

A predetermined type of ambient lighting is generated in which the influence of each of a plurality of luminaries on a predetermined type of ambient lighting is determined () and illumination of each of the plurality of luminaries is controlled () to generate said predetermined type of ambient light based on the determined influence of each of the plurality o f luminaries.

Method and apparatus for generating a predetermined type of ambient lighting

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Eindhoven, Netherlands

Gianluca Monaci