WO2014097072A1 - Système et procédé de détection d'occupation - Google Patents

Système et procédé de détection d'occupation Download PDF

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Publication number
WO2014097072A1
WO2014097072A1 PCT/IB2013/060867 IB2013060867W WO2014097072A1 WO 2014097072 A1 WO2014097072 A1 WO 2014097072A1 IB 2013060867 W IB2013060867 W IB 2013060867W WO 2014097072 A1 WO2014097072 A1 WO 2014097072A1
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WIPO (PCT)
Prior art keywords
occupancy detection
property
energy consumption
detection system
target
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PCT/IB2013/060867
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English (en)
Inventor
Ingrid Christina Maria Flinsenberg
Leszek Holenderski
Alexandre Georgievich SINITSYN
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Koninklijke Philips N.V.
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Publication of WO2014097072A1 publication Critical patent/WO2014097072A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2823—Reporting information sensed by appliance or service execution status of appliance services in a home automation network
    • H04L12/2827—Reporting to a device within the home network; wherein the reception of the information reported automatically triggers the execution of a home appliance functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • 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
    • H05B47/16—Controlling the light source by timing means
    • 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 generally to the field of occupancy detection, and more particularly to an occupancy detection system and a corresponding method suitable for a presence controlled system.
  • Control systems for automatically control lighting and ventilation systems, or heating, ventilation, and air condition systems often rely on occupancy detectors to maximize correct, efficient and timely delivery of light and air in the environment.
  • occupancy detectors for lighting control A main concern of occupancy detectors for lighting control is to ensure that lighting is promptly switched on when a person enters a given environment.
  • current lighting solutions mostly rely on presence sensors to turn off the light when the room is unoccupied thereby saving energy.
  • Cheap and efficient solutions to deliver on this goal consist of Passive Infrared Sensors (PIR), RADARs or SONARs. These are able of quickly detecting movements in the environment while respecting privacy (as opposed to cameras). Their limitation lies however in the lack of sensitivity to small movements.
  • these sensors may erroneously signal an empty room to the control system. This is due to the fact that such sensors signal an empty room after no movement has been recorded over the last period, the duration of that period which can usually be set by the user. This error is very disruptive and frustrating when lighting is mistakenly switched off and seriously lowers the experienced comfort level of the lighting system.
  • the typical presence sensing based lighting control solution has a delay built in of 15 minutes during which the lights remain on after the last movement was detected. To further reduce energy consumption, this delay can be reduced; but this also increases the risk of erroneously signaling an empty room to the control system.
  • US 7411489 Bl discloses an occupancy sensor system comprising a self- adjusting dual technology occupancy sensor (infrared detection and ultrasonic detection), which includes a combination of real time adjustments and fault detection to optimize the sensitivity and time delay settings of the occupancy sensor system.
  • the occupancy sensor is able to activate upon sensing the occupancy of an area, to maintain activation when sensing continuing occupancy of the area, and to deactivate when determining that there is no occupancy of the area. If the occupancy sensor system determines that it made a mistake in activating or deactivating, it adjusts the time delay and/or sensitivity.
  • the step of determining occupancy of the area is in addition to detecting movement in the room further based on detecting if a person leaves the room by issuing a signal when a door to the space is closed.
  • occupancy detection that provides reliable occupancy detection, for which events of erroneously determining the room as 'empty' can be minimized. It would also be desirable to provide occupancy detection in a presence controlled system which is dynamical and which provides a desired operation state of the presence controlled system while balancing comfort level and energy consumption of the presence controlled system.
  • a method of controlling an occupancy detection system comprising: receiving presence sensor data, and for a first system property of said presence controlled system: providing an estimated value of the first system property based on the presence sensor data, and obtaining a target value of the first system property.
  • the method further comprises varying an operating parameter of the occupancy detection system in response to determining that the estimated value of the first system property is not in close proximity to the target value of the first system property.
  • a method of controlling an occupancy detection system which advantageously provides a variable operating parameter of the occupancy detection system, being for instance a delay parameter for setting an occupancy state of the occupancy detection system to 'empty' after a last presence event is detected, or a sampling frequency of the occupancy detection system.
  • the operating parameter is altered in response to the current operation state of a selected system property of the presence controlled system. Since the current system property of the presence controlled system is estimated based on presence sensor data, advantageously a measure of the operation state can be associated with a current comfort level of the presence controlled system, and the operating parameter is thus adjusted to find a balance between this estimated operation state associated with a comfort level and a target value of the same.
  • embodiments described herein may treat reducing 'false offs' as one objective in a multi-objective optimization. For instance, in an embodiment a comfort level (which may be assumed to be inversely proportional to the number of 'false offs') may be balanced against energy consumption to arrive at a solution wherein some 'false offs' will be allowed to occur in order to achieve improved energy savings.
  • the estimated value of the first system property may be determined statistically using the presence sensor data by identifying occurrences where the user reacts to light switching off while the user is still in the area/office, or by determining the likelihood of turning the lights off when there are still people in the office.
  • the energy consumption of the presence controlled system may be estimated based on presence sensor data by utilizing the likelihood of wrongly turning light off when there are still people present in the office (which is associated with the comfort level of the presence controlled system). This will be described in greater detail in the detailed description.
  • the operating parameter of the occupancy system is adjusted so as to provide presence sensor data indicating such higher comfort level, e.g. by increasing the delay as defined above, and thereby decreasing the number of incidents of wrongly turning the lights off while there is still people in the office. This is done at the cost of energy saving, since the higher comfort level will also increase the energy consumption in the presence controlled system.
  • the presence data is originating from the occupancy detection system, and may be received directly from the presence sensor or may be retrieved from a buffer or other storage unit.
  • the presence controlled system is preferably a lighting system or a HVAC system or a combination thereof. However, in practice the method is applicable in any system which benefit from being controlled based on the presence in the room or building where it is installed.
  • the first system property is a comfort level, energy consumption, or a desired balance between the comfort level and the energy consumption.
  • the presence controlled system may be optimized with respect to energy consumption, comfort level or a balance between the two.
  • the method may be implemented to continuously objectively monitor both the comfort level as well as the energy consumption of for instance a presence controlled lighting system using presence sensing data of that lighting system, and may adapt the lighting control based on the desired balance between comfort and energy. This optimization may be done per area/office with a plurality of sensors or a single sensor and per time frame (morning, lunch break, base working time, evening etc.).
  • the target value of the first system property is derived based on at least one a target value of a second system property of the presence controlled system, or is obtained as external data.
  • the target value of the first system property is a target comfort level
  • the second target property may be the target energy consumption, or vice versa.
  • the target value of the second system property may be estimated based on a requested balance between the estimated comfort level and the energy consumption of the presence controlled system, or may be selected based on for instance a room type.
  • the first system property is energy consumption
  • the target level of the energy consumption is based on a target level of the comfort level of the presence controlled system.
  • the operating parameter is a delay parameter for setting an occupancy state of the occupancy detection system to 'empty' after a last presence event is detected.
  • the presence sensor data comprises a set of presence data collected during a predetermined time period, from which a presence pattern is derived, wherein the estimated first system property is based on the presence pattern.
  • a typical presence pattern of for instance an office is derived.
  • the pattern may be derived to mirror a typical presence pattern of the office during different workdays, the weekend etc.
  • an estimate of the comfort level (or other system property) for a set of occupancy detector parameters is derived.
  • the presence detector parameters of the occupancy detection system can be set to match the corresponding presence pattern.
  • a presence detector parameter corresponding to a delay e.g. a definite time period which should pass after a last detected movement before determining a room to be empty, is set to a low value during times of typically low presence, and higher during times the office is typically fully occupied.
  • the delay values can also adapt to changing habits of the occupants, or change of occupants over time.
  • IP internet protocol
  • the presence pattern is derived with respect to a number of time instances
  • the step of varying the operating parameter of the occupancy detection system comprises determining a set of operating parameters of the occupancy detection system corresponding to a preselected set of the time instances t.
  • the external data is received from a user interface or an external database.
  • External data may comprise for instance timing protocols for different target comfort levels for different rooms, and for different hours etc.
  • the step of providing the estimated system property is based on determining a likelihood of the occupancy detection system wrongly setting the occupancy state to 'empty' after a last presence event is detected.
  • the first target system property is estimated based on the presence sensor data and the operating parameter.
  • an occupancy detection system suitable for a presence controlled system.
  • the occupancy detection system comprises a presence sensor for providing presence sensor data, a control unit configured for receiving presence sensor data.
  • the processing unit is configured for providing an estimated value of a first system property based on the presence sensor data, obtaining a target value of the first system property, and for varying an operating parameter of the occupancy detection system in response to determining that the estimated value of first system property is not close in proximity to the target value of the first system property.
  • the occupancy detection system generally has the same advantages as describe above for the method of controlling an occupancy detection system.
  • the target value of the first system property is based on target parameters of the presence controlled system, or obtained as external data.
  • the external data may be received from a user interface or an external database.
  • a control system for a presence controlled system comprising: at least one occupancy detection system according to the invention.
  • the presence controlled system is controlled based on a predetermined ratio between the comfort level and the energy consumption level of the presence controlled system. This advantageously provides a presence controlled system which meets the increasing need for energy saving and increased need to objectively measure and quantify the comfort level delivered to the user in order to make sure that the right balance between the two is obtained.
  • control system comprises a user interface comprising a display for monitoring the target value of the first system property, and at least one second system property of the system, and an input receiver.
  • the input receiver is arranged to receive a user input of external data, the external data being a user selected target value of a system property.
  • Fig. 1 is a schematic view of a room comprising an embodiment of an occupancy detection system according to the present invention
  • Fig. 2 is a schematic illustration of an embodiment of an occupancy detection system according to the present invention.
  • Fig. 3 is a schematic flow-chart illustrating an embodiment of a method of controlling a presence controlled system according to the present invention
  • Fig. 4 is a schematic illustration of a user interface in an embodiment of a control system for a presence controlled system according to the present invention
  • Figs. 5 - 8 are schematic flow-charts illustrating embodiments of a method of controlling an occupancy detection system according to the present invention.
  • the current inventive concept is applicable for any presence controlled system of a room or building, e.g. lighting systems, or heating ventilation and air condition systems (HVAC).
  • lighting systems e.g. lighting systems, or heating ventilation and air condition systems (HVAC).
  • HVAC heating ventilation and air condition systems
  • Fig. 1 is a schematic illustration of an area, such as a room 50, in which an occupancy detection system 10 according to the present invention is installed.
  • the occupancy detection system 10 comprises a presence detector 1 having a presence sensor 2 for providing a signal corresponding to movements of an occupant P of the room.
  • the movement sensor 2 registers the movement and provides a signal upon which signal, in combination with an operating parameter ⁇ here being a delay D of the occupancy detection system, an occupancy state of the room is determined.
  • the delay D is here a definite time period after a last detected movement, after which the occupancy state of the room is determined to be 'empty' .
  • the operating parameter ⁇ may in embodiments of the invention refer to some other parameter, e.g. some other delay setting which is associated with determining the occupancy state of the room, or a sampling frequency of the occupancy detection system.
  • the presence detector 1 is here arranged on a wall of the room 50. Further, a user interface/control panel 14 (optional) of the occupancy detection system 10 is arranged on the wall of the room 50, such that a user can alter the settings of the occupancy detection system 10.
  • the occupancy detection system 10 is arranged in communication with a presence controlled lighting system 20.
  • the presence controlled lighting system 20 comprises a control unit (not shown) arranged for controlling at least light sources of the room, here a luminaire 21, based on the occupancy state provided by the occupancy detection system 10.
  • a control unit not shown
  • the occupancy state is set to 'empty' the luminaire 21 should be turned off, and when the occupancy state is set to Occupied' the luminaire 21 should be turned on.
  • Other types of operations of the light sources which is controlled by the presence controlled lighting system may include adapting the light intensity or color temperature, altering (the number) of active light sources etc.
  • the movement sensor 2 is here a pyro-electric infrared (PIR) sensor, but other movements sensors based on like for instance radio direction and ranging (RADAR), sound navigation and ranging (SONAR) etc. are applicable in the present inventive concept.
  • PIR pyro-electric infrared
  • Multiple movement sensors may be included in the occupancy detection system, but this is not required.
  • the occupancy detection system 10 comprises the presence sensor 2 for providing presence sensor data d pre s, a control unit 3 which is arranged to receive presence sensor data d pres originating from the presence sensor 1, either directly from the presence sensor 2 or from a storage unit 5 in which presence sensor data is registered over time.
  • the control unit 3 is further configured for estimating a first system property P est , in this example an estimated energy consumption level E est , of the lighting system 20 based on the presence sensor data d pre s.
  • the first system property P may be selected to be the comfort level, the energy consumption, or a desired balance between the comfort level and the energy consumption.
  • a corresponding target value of the first system property P set i.e. here the target energy consumption of the lighting system.
  • the target value of the first system property P set may be based on other target parameters of the presence controlled system, e.g. a current setting of a desired comfort level Cse t -
  • the target value of the first system property P set is obtained as external data Xi received from a data base or by a user feeding in a desired value in via the control panel 14.
  • Other target parameters of the presence controlled system may refer to specific requirements as defined in guide lines- or regulations, e.g. requirements on a maximum energy consumption per office/building, energy consumption/m 2 , or energy consumption /lamp.
  • the control unit 3 is configured for comparing the estimated value of the first system property and the target value of the first system property, here the estimated energy consumption level E est and the target energy consumption level E set , and to vary an operating parameter ⁇ , e.g. the delay parameter D, of the occupancy detection system 10 in response to determining that the estimated value of the first system property P est is not close in proximity to the target value of the first system property P set - Since the current delay parameter D is known in the occupancy detector system, and the delay parameter D in turn influences the control of the lights of the lighting system, the operation state of the lighting and the energy consumption of the lighting can be deduced based on the presence sensor data d pres and the delay parameter D, without any actual need to directly monitor the light status and the energy consumption.
  • an operating parameter ⁇ e.g. the delay parameter D
  • the energy consumption for different values of the delay parameter D is performed by applying the same strategy as described above.
  • a comfort level of a presence controlled lighting system is determined deriving the likelihood L of turning the lights off when there are still people in the office, as this reduces the comfort level. In order to determine this likelihood L several methods are possible.
  • the likelihood L is estimated to be equal to 1 if a movement is detected within a time T from the moment the lights (would) turn off, and 0 otherwise.
  • Parameter T typically is a small interval, e.g. 1 minute.
  • the estimated comfort level C est is determined statistically by identifying occurrences where the user reacts to light switching off, i.e. the state of the lighting system, while the user is still in the area/office, i.e. the state of the occupancy detection system.
  • a sampling based system i.e. a presence status is determined every x (milli)seconds
  • a parameter p the estimated probability that the sensor does not record movement when there is a person in the room.
  • N the number of consecutive presence samples indicating no presence. Then given value p, the likelihood L of a wrong decision is estimated as:
  • the energy consumption estimation E est for different values of the delay parameter D can also be done using the likelihood L of wrongly turning off the lights. If the lights are wrongly turned off, the energy consumption is expected to continue after a small interruption at the same level. If the decision was correct, the energy consumption drops to zero.
  • Fig. 3 is a schematic flow-chart illustrating an embodiment of a control system
  • the control system 300 for a presence controlled system.
  • the control system 300 comprises an occupancy detection system 100, which provides current setting of its delay parameters 170 and presence data 120 to two parallel steps of estimations: an estimation of the energy
  • the results of the estimations i.e. the estimated energy consumption E est and the estimated comfort level C est , are provided to a balancing system 150 which is arranged to control the presence controlled system based on a predetermined ratio between the comfort level and the energy consumption level.
  • a continuous monitoring of the estimated comfort level as well as the estimated energy consumption of the presence controlled lighting system is thus performed, such that the control of the lighting system is based on a predetermined balance between the estimated comfort and energy consumption.
  • the values from the estimations 130 and 140 are optionally presented via a user interface, like for instance a dashboard 160, which is shown in more detail in Fig. 4.
  • the dashboard 160 comprises a display 161 and a user input receiver, e.g. buttons or active areas of the display 161 for input of external data, like for instance selection of a desired target energy consumption level in the presence controlled system, or a desired balance between the energy consumption and the comfort level.
  • a desired target system property value here a desired target comfort level C se t of the presence controlled system is obtained, step 101, and operating parameters ⁇ of the occupancy detection system, here current delay values D, are received from the occupancy detection system or a data base, step 102.
  • the delay values are current delay settings D(t) for a number of time instances, e.g. one delay value for each 5 minutes in a day, or one delay value for each 15 minutes of a working day and another set for weekend days.
  • a current value Cest(D) of the comfort level of the presence controlled system is then estimated based on the current delay settings D and presence data, as previously described, for the selected time instances, step 103.
  • the target comfort level C se t and the current comfort level C es t are compared, step 104. If the current comfort level is too low, the delay values should be increased and if the current comfort level C es t is too high, the delay values should be decreased.
  • the change of the delay values may be done stepwise as illustrated in this example.
  • the selection of one or more time instances t for the altering of the operating parameters ⁇ of the occupancy detection system may be based on the estimated and/or target comfort level, a current value of an occupancy detection system operating parameter ⁇ , i.e. here on a current delay value D, or on a typical occupancy level at a specific time instance. However, the one or more time instances may alternatively be selected randomly.
  • a new value for the current comfort level value C es t is then estimated based on the new delay values D, step 108, and is compared with the desired target comfort level C se t , step 109. If it is determined that the new current comfort level C es t is not in the close proximity of the target comfort level C set , the process of altering the delay value D is repeated, step 106. If the new current comfort level C est is in close proximity of the target comfort level,
  • Fig. 6 a flow chart illustrating an embodiment of the method of controlling an occupancy detection system according to the present invention.
  • the method described with reference to Fig. 5 is here utilized to alter delay value settings D(t) based on a target energy consumption E set of the presence controlled system obtained in step 201, received operating parameters ⁇ of the occupancy detection system, here current delay values D(t), step 202, and an estimated current value E est (D) of the energy consumption of the presence controlled system based on the current delay settings D, step 203.
  • the desired target energy consumption E set and the current energy consumption E est are compared, step 204, and if the current energy consumption is too low, the delay values should be increased and if the current energy consumption E est is too high, the delay values should be decreased.
  • the change of the delay values may be done stepwise as illustrated in this example.
  • a new value for the current energy consumption value E est is then estimated based on the new delay values D, step 208, and is compared with the desired target energy consumption E set , step 209.
  • the process of altering the delay value D is repeated for a selected time instance, step 206. If the new current energy consumption E est is in close proximity of the target energy consumption,
  • Fig. 8 this is a flowchart illustrating an embodiment of the method of controlling an occupancy detection system and/or a presence controlled system according to the present invention.
  • the system property P of the presence controlled system is selected to be the balance B(E,C) between the energy consumption E and the comfort level C. See also the corresponding system described with reference to Figs. 3 and 4.
  • a similar method as described for instance with reference to Fig. 5 is utilized to alter delay value settings D(t) of the occupancy detection system based on the desired balance B set . Because increasing the delay of the presence controlled system causes increase in both the energy consumption and the comfort level. Thus, it is not clear if an increase in delay increases or decreases the balance criterion. Therefore, initially, current delay values D of the occupancy detection system is received, step 301, and utilized to estimate the current energy consumption level E est and the current comfort level C est of the presence controlled system.
  • a target balance B set between the energy consumption of the presence controlled system and the comfort level of the system is obtained, step 401.
  • Operating parameters ⁇ of the occupancy detection system, here current delay values D(t), step 402 are received, and an estimated current value B est of the balance of the presence controlled system is provided based on the current delay settings D, step 203.
  • a stepwise altering of the delay values is now performed for both an increase of the delay values D(t), steps 415-416, and a decrease of the delay values D(t), steps 405 - 406.
  • New values for the current energy consumption value Bl est , and B2 est are then estimated based on the new delay values Dl, and D2, respectively, steps 417 and 407, respectively, and are subsequently compared with the desired target balance B set , steps 418 and 408, respectively.
  • the process of altering the delay value D is repeated for a selected time instance, step 404, and so on, until at steps 418 and 408, if the estimated balance B est is in close proximity of the target energy consumption,
  • the selection of the best suited delay values is based on which delay value first or alternatively best matches the desired balance B set .
  • FIG. 7 illustrates how delay values are received and used to determine the new estimates (for E,C, or B), step 301 to 303, in the embodiments illustrated with reference to Figs. 5,6, and 8.
  • a computer-implemented method for use in a HVAC control system or a building management system comprising: receiving presence sensor data; estimating, from the presence sensor data, a comfort level corresponding to one or more current settings of the system; obtaining a value indicative of system energy consumption corresponding to said one or more current settings of the system; and varying at least one of said one or more current settings of the system so as to achieve a predefined balance between system energy consumption and estimated comfort level.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Selective Calling Equipment (AREA)

Abstract

La présente invention se rapporte d'une manière générale au domaine de la détection d'occupation, et, plus particulièrement, concerne un système de détection d'occupation et un procédé correspondant approprié pour un système commandé par la présence, qui fournissent un état de fonctionnement souhaité du système commandé par la présence tout en équilibrant un niveau de confort et la consommation d'énergie du système commandé par la présence. L'invention concerne un procédé de commande d'un système de détection d'occupation 10 dans un système commandé par la présence 20. Le système de détection d'occupation 10 comprend un capteur de présence 2 pour fournir des données de capteur de présence, après quoi un état courant, une propriété de système, du système commandé par la présence est estimé. La propriété de système peut être la consommation d'énergie, le niveau de confort, ou un équilibre souhaité entre la consommation d'énergie et le niveau de confort. Un paramètre de fonctionnement du système de détection d'occupation, par exemple un retard, est ensuite modifié sur la base de la valeur estimée et d'un niveau cible de cette propriété de système.
PCT/IB2013/060867 2012-12-18 2013-12-12 Système et procédé de détection d'occupation WO2014097072A1 (fr)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2018007099A1 (fr) * 2016-07-05 2018-01-11 Philips Lighting Holding B.V. Dispositif de vérification d'un système d'éclairage connecté
US10701782B2 (en) 2016-07-05 2020-06-30 Signify Holding B.V. Verification device for a connected lighting system
US11662697B2 (en) * 2017-08-22 2023-05-30 Boe Technology Group Co., Ltd. Equipment regulation method and equipment regulation device

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