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

• US 9,655,207 B2
• Filed: 08/22/2014
• Issued: 05/16/2017
• Est. Priority Date: 08/27/2013
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Philips Lighting BV (Koninklijke Philips N.V.)
• Inventors: Monaci, Gianluca, Broers, Harry, Muijs, Remco Theodorus Johannes, Schenk, Tim Corneel Wilhelmus, Kuyten, Petrus Johannes Arnoldus Hubertus, Goergen, Daniel Martin, Shoaib, Muhammad
• Primary Examiner(s): A, Minh D
• Application Number:
  US14/910,636
• Publication Number:
  US 20160198548A1
• Time in Patent Office: 998 Days
• Field of Search: 315 34, 315197, 315312, 315308, 315297, 315293, 34042613, 34042614, 34042615, 34042616, 34042617
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: H05B 47/125 by using cameras
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

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.

Claims

1. A lighting control system comprising:

at least one light unit 106 including at least one sensor 110; and

a centralized or distributed controller 105 to control the at least one light unit'"'"'s 106 lighting strategy;

a connected device 114 in communication with the controller 105;

wherein the controller 105 receives status information from the connected device 114, and determines an expected flux of objects directed toward the at least one light unit 106 prior to a detection from the at least one sensor 110, and adjusts the at least one light unit'"'"'s 110 lighting strategy, including a detection threshold of the sensor 110, using the status information and/or determination of the expected flux.

2. The lighting control system of claim 1, wherein the controller 105 is a central management system (CMS) 102 or integrated in light unit 106.

3. The lighting control system of claim 1, wherein the controller 105 adjusts the at least one light unit'"'"'s 110 lighting strategy by increasing or decreasing the detection threshold of the sensor 110.

4. The lighting control system of claim 1, wherein the sensor 110 is a camera and the detection threshold is adjusted only for a selected area or region in an imaging area of the camera in relation to the indication of expected flux of objects.

5. A method of light management for a lighting system, the lighting system having at least one light unit 106 having at least one sensor 110, a connected device 114 and a controller 105 to control the at least one light unit'"'"'s 106 lighting strategy the method comprising the steps of:

receiving, in the controller 105, status information from the connected device 114;

includes an indication of

determining an expected flux of objects directed toward the at least one light unit 106 prior to a detection from the at least one sensor 110; and

adjusting the at least one light unit'"'"'s 106 lighting strategy, including a detection threshold of the sensor 110, using the status information and/or determination of the expected flux.

6. The method of claim 5, wherein the step of adjusting includes increasing or decreasing the detection threshold of the sensor 110.