Failure detection in lighting system
US-9474138-B2 · Oct 18, 2016 · US
Fault detection, localization and performance monitoring of photosensors for lighting controls
US2015073750A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015073750-A1 |
| Application number | US-201314391262-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 4, 2013 |
| Priority date | Apr 10, 2012 |
| Publication date | Mar 12, 2015 |
| Grant date | — |
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Abstract
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A method and system for monitoring sensors of a lighting control system. The method comprises performing a training of a plurality of sensors of the lighting control system ( 210 ) to determine a joint probability distribution function (PDF) of the illuminance at a given time t; collecting parameters from the training and storing the parameters in a prior data storage (S 212 ); observing illuminance of the plurality of sensors (S 222 ); determining if there is at least a faulty sensor from among the plurality of sensors based in part on the parameters stored prior data storage (S 224 ); and locating a faulty sensor based on the determination of the existence of the at least a faulty sensor and the prior data (S 232 , S 234 ).
First claim
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1 . A system for monitoring sensors of a lighting control system, comprising: a plurality of sensors connected to a network; and a computing device connected to the network comprising a training subsystem, a detecting subsystem and a locating subsystem, wherein the training subsystem is configured to compute statistics for the plurality of sensors over at least a portion of historical data respective of the alit of sensors stored over time, wherein the detecting subsystem is configured to col…
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- G01J1/0228Primary
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US2015073750A1 cover?
- A method and system for monitoring sensors of a lighting control system. The method comprises performing a training of a plurality of sensors of the lighting control system ( 210 ) to determine a joint probability distribution function (PDF) of the illuminance at a given time t; collecting parameters from the training and storing the parameters in a prior data storage (S 212 ); observing illumi…
- Who is the assignee on this patent?
- Koninkl Philips Nv
- What technology area does this patent fall under?
- Primary CPC classification G01J1/0228. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Mar 12 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).