WO2013102881A1 - Système et procédé d'apprentissage de préférences d'éclairage d'utilisateur - Google Patents
Système et procédé d'apprentissage de préférences d'éclairage d'utilisateur Download PDFInfo
- Publication number
- WO2013102881A1 WO2013102881A1 PCT/IB2013/050091 IB2013050091W WO2013102881A1 WO 2013102881 A1 WO2013102881 A1 WO 2013102881A1 IB 2013050091 W IB2013050091 W IB 2013050091W WO 2013102881 A1 WO2013102881 A1 WO 2013102881A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- user
- preference
- preferences
- recited
- estimated
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/155—Coordinated control of two or more light sources
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Definitions
- the present invention relates to the field of lighting management and more particularly to a system and method for learning a user's preferences in natural and artificial lighting.
- the present invention provides a method and system that provides for an integrated control of management of lighting conditions to provide preferred lighting conditions for individual users.
- the present invention provides a method and system that provides for an integrated control of management of lighting conditions to reduce energy consumption while providing preferred lighting conditions for individual users.
- the present invention provides a method and system that learns an individual user's preference in lighting conditions and applies the learned preferences to provide for satisfactory light conditions for individual users.
- Figure 1 illustrates an exemplary system for learning user preferences in lighting in accordance with the principles of the invention.
- Figure 2 illustrates a flow chart of a process for learning user preferences in lighting in accordance with the principles of the invention.
- Figure 3 illustrates an exemplary system for implementing the processing shown in Figures 1 and 2.
- Figure 1 illustrates an exemplary system 100 for managing a lighting environment in accordance with the principles of the invention.
- an amount of natural lighting may be applied to an area in which a user 1 10 is located.
- the amount of natural light entering the area may be determined based on the time of day, the direction (or orientation) of the window treatment system 120 (represented as a Venetian blind system), a size of a window (not shown) covered by the window treatment system 120, an amount of opening of blind system 120 and the angle of the slats (or blades) of the window treatment system 120.
- lighting may be provided in the area (not shown) by an artificial lighting system 130.
- the artificial lighting system may be one of an incandescent lighting system and/or a fluorescent lighting system.
- Light sensors 140 and 150 may respectively detect and/or measure amounts of light emanating from inside sources (e.g., artificial light sources (130)) and outside sources (e.g., the sun (not shown)).
- inside sources e.g., artificial light sources (130)
- outside sources e.g., the sun (not shown)
- an occupancy sensor 160 may be used to control when artificial light sources are activated. That is, the artificial light sources are only activated when a user 110 is within the area. Otherwise, the artificial light source is not activated and the light level within the area is only provided by any natural light that may be entering the area.
- the outputs of light sensors 140 and 150 may be provided to a controller 170.
- Controller 170 operating on the provide inputs, may control or provide command signals to change or adjust the position (height) of the blind system 120 and/or the orientation of the slats (cut-angle) of the blind system 120.
- the controller may determine a light level provided by the artificial light sources(s) 130.
- the user 1 10 may provide inputs to the controller 170. The inputs may present new settings or may represent the user's satisfaction, or dissatisfaction, with the settings.
- Learning machine 180 receives input information from control 170 in addition to inputs provided by the user 110.
- the inputs provided by the user 110 may include current position of the window treatment system, amount of natural and artificial light available, user settings for artificial light, time of day, day of week, month, season, etc.
- Learning machine 180 determines a model of the preferences of the user based upon the provided inputs. For example, the learning machine 180 may determine a model of user preferences based on inputs such as a time of occupancy of the area by the user, position of the blind system 120 and the cut-angle of the slats of the blind system 120, direction of the window (not shown) covered by the blind system 120, the time of day, the day of the week and the season (e.g., summer, winter).
- inputs such as a time of occupancy of the area by the user, position of the blind system 120 and the cut-angle of the slats of the blind system 120, direction of the window (not shown) covered by the blind system 120, the time of day, the day of the week and the season (e.g., summer, winter).
- u [u l t ... nU ] (6)
- n represents a corresponding maximum number for each of lamps, blinds, angle of blinds, users and sensors.
- R ⁇ rj ( 10) wherein ⁇ represents values of individual user rewards. If a user is present (u j ⁇ 1), then in one embodiment individual rewards may be defined as:
- individual rewards may be defined as:
- the user preference record is kept in a database 77.
- This database maintains a distribution of state-actions that satisfy users with maximum probability given a particular state, or
- the database knows what blind height/angle and lamp intensity is preferred by users and so the database has recorded the action needed to take place (i.e. a combination of blind height/angle change and lamp intensity change) in order to maximize the probability of user satisfaction.
- the user-machine interaction happens through three stochastic processes. Two out of three are controlled by the machine through a Gamma processes with different parameters and the third one is controlled by users through unknown process.
- an unknown process is referred to, herein, as an arbitrary stochastic process by which a user interaction is governed.
- This process is not known by the learning machine and is dependent on the user's interaction.
- the stochastic process of user interaction e.g., satisfaction (likes), dis-satisfaction (dislikes), etc.
- the learning machine described, herein performs well independent of the actual form of the process by which the user inputs likes and dislikes regarding the environmental settings determined based on the known processes described herein and the arbitrary process by which the user's likes and dislikes are entered and/or evaluated.
- a Gamma process represents a random process with independent Gamma distributed increments.
- Gamma distribution is a two-parameter family of continuous probability
- Adjustment Interaction This happens through a Gamma process with parameters k a and ⁇ ⁇ . At each occurrence, the machine issues an action without a chance of being eligible for reward (i.e. zero reward) except possibly through user interaction (see below).
- the learning machine makes a change to environment variables (e.g. dims the light), but it does not force the user to re-act by reporting whether he/she is happy (likes) or unhappy (dislikes) with this adjustment.
- environment variables e.g. dims the light
- time frame may be on the order of l/(fc m 0 m )].
- the learning machine makes a change to environment variables (e.g. dims the light), and it forces the user to re-act by reporting whether he/she is happy or unhappy with this adjustment.
- environment variables e.g. dims the light
- a user can provide a voluntary report at any time. Upon such interaction, the initial zero reward is reported in an adjustment report immediately preceding this interaction.
- Figure 2 illustrates a process chart for developing a user's lighting preference model in accordance with the principles of the invention.
- step 210 a next interaction time or kind is determined
- the interaction time may be preset to a periodic value from a previous interaction time or may be set in response to an interaction (e.g., detection of occupancy or a user changing a condition of the artificial lighting system or a user dissatisfaction report).
- a current state of the conditions i.e., settings for natural and artificial lighting
- actions are issued according to the current policy. For example, when occupancy is detected, commands may be sent to the window treatment system 120, to position the height of the blinds and/or the orientation of the slats based on a current time.
- the occupancy sensor similarly may provide commands to the lighting system to activate the lighting system.
- the lighting system may be activated to the last known setting or may be set according to a predetermined setting based on the window treatment setting.
- Exemplary methods for determining blind orientation and slat cut-angle are disclosed in co-pending patent application entitled "A Method For Sharing Movement Adaptation Schedule To Prevent False Positive
- a determination is made of a kind of interaction that has been detected i.e. Mutual, Adjustment. If the interaction is determined to be mutual then processing performs a Gamma process with parameters k m and 9 m , as previously described, wherein inputs provided by user 1 10 are obtained.
- the user input may include the rewards settings discussed in Eqs. 1 1 and 12 and it may include a set point change initiated by the user. That is, the user inputs may, for example, include a change in a setting (lowering or increasing) the light output of the artificial light system.
- the learning records are updated.
- the updating of the learning records includes previously stored learning records obtained from data base (block 280).
- the updating of the learning records may be based on time, day, week, month, season, etc.
- the learning records may be correlated into periods of time, wherein the periods of time overlap by a known time period. This correlation of time allows for conditions wherein the user may provide an input at the exact same time each day.
- a determination of when lighting preferences are sufficient may be determined by the user in response to indications provide by the user. For example, the user provides input regarding satisfaction or dissatisfaction ( ⁇ ) with each setting.
- ⁇ satisfaction or dissatisfaction
- initial setting of lighting and window treatment are established based on an initial lighting preference
- an adjustment to either the lighting and/or window treatment setting may be made by the user.
- the level of adjustment being outside a nominal tolerance level
- the adjustment may be deemed that the user is not satisfied with the settings.
- the user adjusted settings are maintained and established as the current settings. Processing then proceeds to step 210 to await a next period.
- processing proceeds with a Gamma process with parameters k a and ⁇ ⁇ as previously described, and sets a next scheduled period for another adjustment. Inputs from a user 1 10 are obtained at block 225. Processing then proceeds as previously described.
- the learning records are used to update the lighting/window treatment settings stored in data base 285.
- the processing shown in Figure 2 may be performed for a plurality of time interval. Thus, is may be possible that a user's preferences may be acceptable or satisfactory for some time intervals and not others. Thus, the processing would continue for those intervals deemed not to be satisfactory.
- the learning record contains a set L of observed triplets in the form of state, action, rewards (s, a, R).
- L(s, a) ⁇ R 1 , R 2 ... ⁇ (14)
- Equation 14 represents the observed rewards over the learning history.
- an Epsilon-Greedy reinforcement method is used to update the state-action policy for each state that is encountered during the learning process as shown in Eq. (15).
- m T , m D , m w , m,, m B , m. Q , m 0 and ⁇ ⁇ are the quantization numbers in the state dimensional sets T, D, W, I, B, Q, 0 and U, respectively.
- the Epsilon-greedy method utilizes a greedy strategy with probability of 1 -epsilon and random strategy with probability of epsilon.
- the greedy strategy refers to a best known strategy based on past trials and learning.
- the quantization numbers refer to total number of distinct values a variable can take.
- the convergence of the user preference policy may be measured by the consistency of the reward set over a given period of time. In one embodiment, the following condition can be used to assess learning convergence
- T * is the minimum consistency time (in hours) for user satisfaction.
- L(T * is defined as
- the new state is created by issuance of a set of actions as governed by the policy described in Eq. 15.
- This policy is, of course, initialized based on a user's own understanding of their preference and is evolved through the learning process.
- the above-described methods according to the present invention can be implemented in hardware, firmware or as software or computer code that can be stored in a recording medium such as a CD ROM, an RAM, a floppy disk, a hard disk, or a magneto -optical disk or computer code downloaded over a network originally stored on a remote recording medium or a non- transitory machine readable medium that can be stored on a local recording medium, so that the methods described herein can be rendered in such software that is stored on the recording medium using a general purpose computer, or a special processor or in programmable or dedicated hardware, such as an ASIC or FPGA.
- a recording medium such as a CD ROM, an RAM, a floppy disk, a hard disk, or a magneto -optical disk or computer code downloaded over a network originally stored on a remote recording medium or a non- transitory machine readable medium that can be stored on a local recording medium, so that the methods described herein can be rendered in such software that is stored on the recording medium using
- the computer, the processor, microprocessor controller or the programmable hardware include memory components, e.g., RAM, ROM, Flash, etc. that may store or receive software or computer code that when accessed and executed by the computer, processor or hardware implement the processing methods described herein.
- memory components e.g., RAM, ROM, Flash, etc.
- the execution of the code transforms the general purpose computer into a special purpose computer for executing the processing shown herein.
- FIG. 3 illustrates an exemplary system 300 for implementing the processing shown herein.
- input devices 310 provide inputs to a processing unit 320.
- the inputs are provided through a network 315.
- the processing unit 320 includes an input/output unit 330 in communication with network 315, a processor 335 and a memory 340.
- the input/output unit 330, the processor 335 and memory 340 are in communication via a network or bus 350.
- the input/output unit receives inputs through the network 315 and provides the inputs to the processor 335 for subsequent processing.
- the processor 335 accesses software, code, and/or instruction, stored in the memory 340, which when executed implements the processing shown herein.
- the processing unit 320 (and the individual components described) represents structural means for implementing the processing shown herein.
- the processor 335 may include logical units and arithmetic units that provide the structural means for implementing the processing shown herein.
- the memory 340 may include the code or instruction which when accessed by the processor 335 causes the processor 335 to execute the processing shown herein.
- the input/output unit 330 may further provide outputs determined by the processing unit 335 to one or more devices (printing/reporting device 360, second processing system 365 and/or storage device 370) to make the determined outputs available for review or subsequent processing.
- the outputs may be provided through a network 380.
- the input/output device 330 may be connected through a bus or network to additional memory unit 385, a second I/O device 390 and/or a processing unit 395 to receive additional inputs and/or provide outputs to other types of devices.
- the system shown herein also provides that the code or instruction may be updated by downloading updated software instruction via one or more networks, wherein the updated software instruction is then stored in the memory 340.
Abstract
L'invention concerne un procédé et un système pour déterminer une préférence d'utilisateur dans la gestion de lumière d'une zone. Le procédé comprend les étapes consistant à collecter des données concernant une lumière artificielle et naturelle à l'intérieur de la zone, à collecter des données concernant les conditions météorologiques et à collecter les données collectées par rapport à des informations temporelles et géographiques associées à l'espace. Les données collectées sont traitées à l'aide de processus stochastiques pour estimer les préférences de l'utilisateur à un instant spécifique. Un éclairage artificiel (130) et un éclairage naturel sont ajustés sur la base des préférences d'utilisateur estimées. Des entrées d'utilisateur peuvent être fournies pour indiquer la satisfaction et/ou le mécontentement de l'utilisateur vis-à-vis de l'estimation. Des réglages de préférence d'utilisateur sont mis à jour et conservés lorsque l'utilisateur est satisfait des résultats.
Applications Claiming Priority (2)
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US201261583687P | 2012-01-06 | 2012-01-06 | |
US61/583,687 | 2012-01-06 |
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WO2013102881A1 true WO2013102881A1 (fr) | 2013-07-11 |
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CN103759232A (zh) * | 2014-01-21 | 2014-04-30 | 华南理工大学 | 一种依据自然光照的室内led照明调光方法 |
JP2015103453A (ja) * | 2013-11-26 | 2015-06-04 | 大和ハウス工業株式会社 | 照明制御システム及び照明制御方法 |
EP3273752A1 (fr) * | 2016-07-21 | 2018-01-24 | Honeywell International Inc. | Contrôleur de niveau de lumière de microclimat pour espaces occupés |
WO2018074970A1 (fr) * | 2016-10-18 | 2018-04-26 | Plejd Ab | Système et procédé d'éclairage pour commande automatique d'un motif d'éclairage |
US10264639B2 (en) | 2016-11-30 | 2019-04-16 | Samsung Electronics, Co., Ltd. | Apparatus and method for controlling light |
WO2021105048A1 (fr) | 2019-11-28 | 2021-06-03 | Signify Holding B.V. | Dispositif de commande pour entraîner une machine à automatiser des actions de commande d'éclairage et procédé associé |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015103453A (ja) * | 2013-11-26 | 2015-06-04 | 大和ハウス工業株式会社 | 照明制御システム及び照明制御方法 |
CN103759232A (zh) * | 2014-01-21 | 2014-04-30 | 华南理工大学 | 一种依据自然光照的室内led照明调光方法 |
CN103759232B (zh) * | 2014-01-21 | 2015-10-28 | 华南理工大学 | 一种依据自然光照的室内led照明调光方法 |
EP3273752A1 (fr) * | 2016-07-21 | 2018-01-24 | Honeywell International Inc. | Contrôleur de niveau de lumière de microclimat pour espaces occupés |
WO2018074970A1 (fr) * | 2016-10-18 | 2018-04-26 | Plejd Ab | Système et procédé d'éclairage pour commande automatique d'un motif d'éclairage |
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CN113966029A (zh) * | 2016-10-18 | 2022-01-21 | Plejd 公司 | 用于自动控制照明模式的照明系统和方法 |
US10264639B2 (en) | 2016-11-30 | 2019-04-16 | Samsung Electronics, Co., Ltd. | Apparatus and method for controlling light |
WO2021105048A1 (fr) | 2019-11-28 | 2021-06-03 | Signify Holding B.V. | Dispositif de commande pour entraîner une machine à automatiser des actions de commande d'éclairage et procédé associé |
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