WO2013011395A2 - Unité de configuration et procédé pour détection de présence - Google Patents

Unité de configuration et procédé pour détection de présence Download PDF

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Publication number
WO2013011395A2
WO2013011395A2 PCT/IB2012/053242 IB2012053242W WO2013011395A2 WO 2013011395 A2 WO2013011395 A2 WO 2013011395A2 IB 2012053242 W IB2012053242 W IB 2012053242W WO 2013011395 A2 WO2013011395 A2 WO 2013011395A2
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WO
WIPO (PCT)
Prior art keywords
sensor
configuration unit
target
receivers
transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2012/053242
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English (en)
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WO2013011395A3 (fr
Inventor
Ashish Vijay Pandharipande
Xiangyu Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of WO2013011395A2 publication Critical patent/WO2013011395A2/fr
Publication of WO2013011395A3 publication Critical patent/WO2013011395A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H05B47/115—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
    • H05B47/175—Controlling the light source by remote control
    • H05B47/198—Grouping of control procedures or address assignation to light sources
    • H05B47/199—Commissioning of light sources
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/22—Status alarms responsive to presence or absence of persons
    • 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 a configuration unit and a method for presence detection.
  • the saving of energy may be improved by manual control of the light source, e.g. that a person in a room is more attentive to use the lighting only when needed, thereby switching on the light upon arrival and switching off the light when leaving the room.
  • manual control of the lighting may sometimes be undesired when considering energy saving. For example, a user may easily forget to turn off the lighting when leaving a room/space. Furthermore, a manual control of the lighting may be undesired and/or inefficient, e.g. for the lighting in stores. Instead, it is advantageous that a lighting control unit is able to turn off or turn on light sources without the operation of the client. As another example, the avoidance of manual control of the lighting may especially be advantageous in some cases such as when there is a plurality of light sources, and the light sources are placed at different locations in a room.
  • presence detection sensor solutions may provide information on e.g. locations of a person, person movement trajectories and/or the number of persons in e.g. a room. This information may be transferred to a lighting control system controlling a lighting function of a light source, such that more or less light may be provided at the predicted location of the person. For example, if a person is estimated to be present at a specific location in a room, a light source may be turned on such that light is provided at that specific location of the room. This location may be close to e.g.
  • a desk, a book shelf, or a chair where the person is predicted to be located, and the control of the light source may improve the lighting for the person who e.g. will study at the desk, find a book in the shelf, or sit down in the chair to read.
  • a configuration unit for configuring at least one sensor for detection of a target in a space.
  • the sensor comprises at least one transmitter and a plurality of receivers and the configuration unit comprises at least one transmitter and a plurality of receivers.
  • the configuration unit is operatively connected to the sensor.
  • the configuration unit is adapted to estimate at least one detection zone of a target of the sensor, based on a transmitting range for the transmitter and on a receiving range for the plurality of receivers.
  • the configuration unit is adapted to configure the sensor with respect to the detection zone of a target of the sensor.
  • a method for configuring a sensor for detection of a target comprises the steps of estimating a detection zone of a target of the sensor, based on a transmitting range of the transmitter and on a receiving range of the plurality of receivers. Furthermore, the method comprises the step of configuring the sensor with respect to the detection zone of a target of the sensor.
  • the present invention is based on the idea of providing a configuration unit or a method for configuring a sensor with respect to a detection zone of a target of the sensor (hereafter also denoted target detection zone).
  • the present invention is advantageous in that it provides an automatic configuration, adjustment and/or tuning of the sensor for presence detection of a target.
  • parameters of presence detection sensors are adjusted manually, e.g. by changing the orientation of the sensors thereby changing the detection region.
  • such manual operation for adjusting the sensor settings is often cumbersome, circumstantial, and/or difficult.
  • the configuration unit and the method of the present invention are advantageous in that they alleviate the problems related to manual sensor adjustments and that they provide a more convenient configuration of the sensor for presence detection.
  • the commissioning and/or configuration of the sensor becomes more precise, easier, faster and/or cheaper. Furthermore, by the configuration of the sensor of the present invention, the sensor becomes less prone to installation errors. As a result, the configuration unit leads to even larger energy savings and/or a more convenient lighting in the space upon detection of a target.
  • the configuration unit and/or method may increase the saving of energy and/or provide a more convenient lighting, as a lighting may be turned/s witched on for target detection zone(s) wherein a target(s) is detected, whereas a lighting may be turned/switched off (or dimmed) for target detection zones wherein a target(s) is not detected.
  • the configuration unit may configure the target detection zone of the sensor with the purpose of saving energy.
  • the configuration unit may configure the sensor in that a plurality of target detection zones are configured not to overlap (or at least minimize the overlap of the zones).
  • the sensor and the configuration unit comprises each at least one transmitter and a plurality of receivers, and the sensor and the configuration unit are operatively connected to each other. It will be appreciated that the terms "operatively connected” may be construed as a communication between the configuration unit and the sensor.
  • the present invention proposes to use ultrasound signals for conveying information between the configuration unit and the sensor(s).
  • the configuration unit is adapted to estimate a detection zone of a target of the sensor, based on a transmitting range for the transmitter and on a receiving range for the plurality of receivers of the sensor.
  • transmitting range may be construed as a range/region/space in which a (probing) signal is able to propagate from the transmitter.
  • the "transmitting range” may be interpreted as a range/region/space which is scanned by the signal.
  • the term “receiving range” may be construed as a range/region/space from which a signal (e.g. reflection of probing signal) is able to be received by the plurality of receivers.
  • the sensor(s) is (are) associated with a transmitting range and a receiving range, and based on the transmitting range and receiving range, the configuration unit is adapted to estimate a target detection zone.
  • the target detection zone and the transmitting range and/or receiving range do not need to be the same.
  • a target within the transmitting range of the sensor but outside the receiving range of the sensor may, possibly, not be detected.
  • the target detection zone may, in some cases, represent the intersection of the transmitting range and the receiving range, or a zone smaller than the intersection of the transmitting range and the receiving range.
  • the configuration unit is adapted to configure the sensor with respect to the detection zone of a target of the sensor.
  • the configuration unit is adapted to configure the sensor such that the target detection zone of the sensor is
  • the configuration unit may further be adapted to configure the sensor with respect to a plurality of detection zones of a target of the sensor in a plane of the space.
  • the present embodiment is advantageous in that the configuration unit configures the sensors(s) such that the space is conveniently divided/partitioned into a plurality of target detection zones.
  • the lighting in a space may be controlled on a zone level, i.e. that a lighting may be set/controlled based on the zone wherein a target is detected.
  • the present embodiment provides a more energy efficient lighting in the space. For example, if a target is detected by a sensor in a detection zone, a lighting associated with that detection zone may be illuminated, whereas a lighting associated with other detection zones may remain unlit, be switched off or dimmed.
  • the configuration unit may further be adapted to receive a signal by the plurality of receivers of the configuration unit, wherein the signal is transmitted by the transmitter of the sensor.
  • the configuration unit may determine a location of the sensor relative to the configuration unit based on the signal.
  • the present embodiment is advantageous in that the configuration unit thereby conveniently receives information about the location of the sensor(s) relative to the configuration unit.
  • the present embodiment is further advantageous in that the configuration unit may
  • the configuration unit may determine/estimate the location(s) of the sensor(s) with respect to the space and/or the detection zone(s) of the sensor(s), thereby even further improving the configuration of the sensor(s). Furthermore, the configuration unit may determine/estimate the
  • the configuration unit may further be adapted to estimate the location of the sensor based on the time-of- flight and direction of arrival of the signal.
  • time-of- flight describes a variety of methods that measure the time that it takes for a signal to travel a distance through a medium, wherein “direction of arrival” denotes the direction from which a signal arrives.
  • direction of arrival denotes the direction from which a signal arrives.
  • the present embodiment is advantageous in that the mentioned methods contribute to the preciseness of the location(s) of the sensor(s), and thereby even further improves the configuration of the sensor(s).
  • the configuration unit may further be adapted to assign a reference location for one of the sensors. Furthermore, the configuration unit may be adapted to assign a relative location with respect to the reference location for a sensor different from the one of the sensors. In other words, the configuration unit may be adapted to assign a reference location for a first sensor, and assign a relative location with respect to the reference location for a sensor different from the first sensor. For example, one of the presence sensor may be assigned a reference location, e.g. in an origin, and the other sensors may be assigned relative location(s), e.g. in relation to the origin.
  • the present embodiment is advantageous in that the configuration unit readily, conveniently and consistently detects, maps and/or registers sensors(s) locations. Furthermore, the present embodiment is advantageous in that the configuration unit, by assigning relative location(s) of sensor(s), does not need to assign actual location(s) of sensors, leading to an even more convenient configuration of the sensor(s).
  • the configuration unit may further be adapted to transmit a signal from the transmitter of the configuration unit to the plurality of receivers of the sensor from at least one position of the configuration unit. Furthermore, the configuration unit may configure the sensor with respect to the position of the configuration unit, based on the signal received by the plurality of receivers of the sensor.
  • the present embodiment is advantageous in that the configuration unit may conveniently define/delineate the target detection zone(s) of the sensor(s). Furthermore, the present embodiment is advantageous in that the sensor(s) is configured by the configuration unit to obtain a consistent definition of the target detection zone(s).
  • the configuration unit may further be arranged/placed in several positions (e.g. in positions in the plane of the space), and preferably in a vicinity of the limits/borders of the target detection zone(s), to thereby even further improve the preciseness of the target detection zone(s) of the sensor(s).
  • the signal transmitted by the transmitter of the configuration unit may further comprise information of the position of the configuration unit.
  • the configuration unit may provide the sensor with the actual or relative location of the configuration unit.
  • the configuration unit may transmit a signal from the transmitter of the configuration unit to the plurality of receivers of the sensor from at least one position, for configuration of the sensor (e.g. by time-of- flight and/or direction of arrival methods), and/or supply the sensor with information, e.g. about the actual (or relative) location of the configuration unit.
  • the present embodiment is
  • the configuration unit may thereby even more effectively and/or conveniently configure the sensor(s) with respect to the target detection zone(s) and/or provide even more precise target detection zone(s) of the sensor(s).
  • the information of the position may comprise details regarding substantially any feature of the space, e.g. in that furniture or the like are provided in, or close to, the position.
  • the configuration unit may further be adapted to receive a signal by the plurality of receivers of the configuration unit from the transmitter of the sensor at a position of the configuration unit. Furthermore, the configuration unit may determine the transmitting range of the sensor, based on the signal received by the plurality of receivers of the configuration unit.
  • the present embodiment is advantageous in that the configuration unit may conveniently determine the transmitting range of the sensor. As the target detection zone is dependent on the transmitting range, the estimate of the detection zone of the target of the sensor is improved, with the further result that the configuration of the sensor is improved.
  • the configuration unit may determine the shape(s) of the transmitting range(s) of the sensor(s) and/or determine relationships between transmitting range(s) of the sensor(s), e.g. overlaps. Furthermore, the configuration unit may hereby estimate the target detection zones, and analogously determine shape(s) of the target detection zone(s) of the sensor(s) and/or determine relationships between target detection zone(s) of the sensor(s).
  • the present embodiment is thereby further advantageous in that the configuration unit may determine where and/or to what extent the space is covered/scanned by the transmitting ranges/target detection zones of the sensors.
  • the configuration unit may further be adapted to compare the transmitting range of the sensor with a desired transmitting range of the sensor.
  • the configuration unit may be adapted to diagnose a configuration of the transmitter of the sensor based on the comparison of the transmitting range of the sensor with the desired transmitting range of the sensor.
  • the present embodiment is advantageous in that the configuration may firstly compare the (actual) transmitting range of the sensor, and compare this transmitting range with a desired transmitting range.
  • the configuration unit may study/analyze the degree of
  • the configuration unit may hereby be adapted to compare the target detection zone of the sensor with a desired target detection zone of the sensor. Secondly, the configuration unit may diagnose/determine/estimate the configuration/setting of the transmitter based on this comparison. For example, if the transmitting range does not conform with the desired transmitting range of the sensor, the configuration unit may diagnose/conclude/estimate an erroneous/faulty transmitter orientation. In such a case, the configuration unit may
  • the configuration unit may (re)configure the sensor with respect to the (new) target detection zone.
  • the configuration unit may further be adapted to transmit a signal from the transmitter of the configuration unit to the plurality of receivers of the sensor from a position of the configuration unit. Furthermore, the configuration unit may determine the receiving range, based on the signal transmitted by the transmitter of the configuration unit.
  • the present embodiment is advantageous in that the configuration unit may conveniently determine the receiving range of the sensor. As the target detection zone is dependent on the receiving range, the estimate of the detection zone of the target of the sensor is improved, with the further result that the configuration of the sensor is improved. As a result, the estimate of the detection zone of the target of the sensor is improved, with the further result that the configuration of the sensor is improved.
  • the configuration unit may determine the receiving range(s) of the sensor(s) and/or determine possible overlaps of receiving range(s) of the sensor(s).
  • the present embodiment is thereby further advantageous in that the configuration unit may determine where and/or to what extent the space is covered by the receiving ranges of the sensors.
  • the configuration unit may further be adapted to compare the receiving range with a desired receiving range.
  • the configuration unit may diagnose a configuration of the plurality of receivers of the sensor based on the comparison of the receiving range with the desired receiving range.
  • the present embodiment is advantageous in that the configuration may firstly compare the (actual) receiving range of the sensor, and compare this receiving range with a desired receiving range.
  • the configuration unit may study/analyze the degree of conformance of the receiving range and the desired range.
  • the configuration unit estimates a target detection zone based on the receiving range, it will be appreciated that the configuration unit may hereby be adapted to compare the target detection zone of the sensor with a desired target detection zone of the sensor.
  • the configuration unit may be adapted to compare the target detection zone of the sensor with a desired target detection zone of the sensor.
  • the configuration unit may diagnose/determine/estimate the configuration/setting of the plurality of receivers based on this comparison. For example, if the receiving range does not conform with the desired receiving range of the sensor, the configuration unit may diagnose/conclude/estimate an erroneous/faulty orientation of the plurality of receivers. In such a case, the configuration unit may (re)configure the sensor with respect to the orientation of the plurality of receivers, which results in a different target detection zone. Consequently, the configuration unit may (re)configure the sensor with respect to the (new) target detection zone.
  • a sensor for presence detection of a target comprising a transmitter, a plurality of receivers and a configuration unit as earlier described.
  • the sensor is adapted to detect the presence of a target in a detection zone of the sensor, based on a probing signal transmitted by the transmitter of the sensor and on a return signal received by the plurality of receivers of the sensor, wherein the return signal is generated by reflection of the probing signal against the target.
  • the present embodiment proposes the combined features of a sensor and a configuration unit, with the advantage that other means for configuration/commissioning may be obviated.
  • the positioning and/or orientation of the sensors may substantially be provided anywhere in the space, thereby reducing configuration/commissioning efforts and/or errors.
  • the present embodiment is further advantageous in that the sensor
  • the configuration unit may efficiently configure the sensor with respect to the detection zone as earlier described.
  • a lighting control system for controlling a lighting function of at least one light source.
  • the lighting control system further comprises a sensor as earlier described, wherein the lighting control system is adapted to control the lighting function based on the presence of a target in the detection zone.
  • the sensor comprising the configuration unit, provides an energy efficient target detection.
  • the lighting control system is adapted to detect the presence of a target, e.g. in one target detection zone, while other target detection zones may be empty. More specifically, the configuration unit efficiently configures the sensor with respect to the detection zone of a target of the sensor, leading to more a more localized lighting.
  • Fig. 1 shows a lighting control system according to an embodiment of the present invention
  • Figs. 2-4 show schematic views of a configuration unit and a plurality of sensors according to embodiments of the present invention.
  • the present invention is described with reference to a configuration unit for configuration of a sensor for presence detection in a space and a lighting control system for controlling a lighting function of a light source.
  • Fig. 1 shows a schematic view of a lighting control system 100 for controlling at least one light source 101.
  • the lighting control system 100 is provided in a space 102 which is depicted as a room, wherein the light source 101 (shown as four light sources 101a- d) is provided in ceiling of the space 102.
  • the lighting control system 100 comprises a sensor 103, arranged approximately in the middle of the ceiling of the space 102, wherein the sensor 103 comprises a transmitter 104 and a plurality of receivers 105. It will be appreciated that although only one sensor 103 is shown in Fig. 1, substantially any number of sensors 103 is feasible, and further that the spatial arrangement of the sensor(s) 103 may be provided substantially anywhere in the space 102.
  • sensors 103 there may be four sensors 103, one for each light source lOla-d. It will further be appreciated that the sensor 103 may be substantially any kind of sensor 103 for presence detection. Sensor modalities such as RF- based sensors, vision sensors, etc, may also be feasible.
  • a configuration unit 110 for configuring the sensor 103 is provided next to the sensor 103 in the ceiling of the space 102, wherein the configuration unit 110 comprises a transmitter 111 and a plurality of receivers 112. It will be appreciated that the configuration unit 110 may be provided substantially anywhere in the space 102.
  • the configuration unit 110 is operatively connected to the sensor 103, i.e. the transmitter 104 of the sensor 103 may transmit signals to the plurality of receivers 112 of the configuration unit 110 and/or the transmitter 112 of the configuration unit 110 may transmit signals to the plurality of receivers 105 of the sensor 103.
  • the configuration unit 110 is adapted to configure the sensor 103 with respect to at least one target detection zone 120 of the sensor 103.
  • the space 102 comprises four target detection zones 120a-d in a plane of the space 102, wherein the target detection zones 120a-d are substantially square, non-overlapping and cover the floor of the space 102. Hence, the space 102 is partitioned/divided into the target detection zones 120a-d.
  • a target 130 is schematically pictured as a person 130 sitting by a computer.
  • target detection zone 120b-d no target 130 is (momentarily) present.
  • the sensor 103 detects the presence of the target 130 in the target detection zone 120a, and the lighting control system 100 is adapted to control the light source 101 based on the presence of the target 130 in the target detection zone 120a.
  • the lighting control system 100 may control the light sources lOla-d and the target detection zones 120a-d in that light source 101a may illuminate target detection zone 120a, light source 101b may illuminate target detection zone 120b, etc. Hence, the lighting control system 100
  • the light source 101a turns/switches on the light source 101a, such that light is provided to the target 130 present in the target detection zone 120a, whereas the light sources lOlb-d, for the illumination of target detection zones 120b-d, are turned off/switched off or dimmed.
  • the light sources lOla-d may be controlled by the lighting control system 100 to illuminate areas which do not correspond to the target detection zoned 120a-d.
  • Fig. 2 shows a schematic view of a plurality of sensors 200a-d for presence detection of a target in a space 202.
  • Two sensors (200a, b) are provided in the ceiling of the space 202, whereas two sensors (200c, d) are provided on opposite walls of the space 202.
  • a configuration unit 210 is arranged approximately in the middle of the ceiling of the space 202.
  • the sensors 200a-d transmit (from the transmitters of the sensors 200a-d) at least one signal 201 each to the configuration unit 210 (received by the plurality of receivers of the configuration unit 210) in a particular assigned time slot.
  • the configuration unit 210 may receive the signal 201 if the configuration unit 210 is within a transmitting range of each sensor 200a-d.
  • configuration unit 210 may determine sensor-related ranges and/or angles based on the received signals.
  • the configuration unit 210 may compute range information using so called time-of- flight methods, and angles using so called direction-of-arrival (DoA) algorithms. Details about DoA may be found e.g. in E. Tuncer and B. Friedlander (2009) Classical and modern direction-of-arrival estimation, ISBN-13: 978-0-12-374524-8, and such details are incorporated herein by reference.
  • DoA direction-of-arrival
  • the configuration unit 210 may hereby be adapted to determine a location of each sensor 200a-d relative to the configuration unit 210.
  • the configuration unit 210 is adapted to assign a reference location for one of the sensors 200a-d, and assign relative locations with respect to the reference location for the other sensors 200a-d.
  • the configuration unit 210 may assign a reference location (x a , y a , z a ) for sensor 200a, and assign relative locations (xb, yt,, Zb), (x c , y c , z c ) and/or (xd, y , Zd) with respect to the reference location (x a , y a , z a ) for the other sensors 200b-d, respectively.
  • the present embodiment is advantageous in that the configuration unit 210 thereby obtains relative location information defined in a consistent manner for the sensors 200a-d.
  • Fig. 3 shows a schematic view of the plurality of sensors 200a-d for presence detection of a target in a space 202 as depicted in Fig. 2.
  • the space 202 indicates four target detection zones 220a-d in a plane of the space 202, in accordance with Fig. 1, wherein the target detection zones 220a-d are substantially square, non-overlapping and cover the floor of the space 202.
  • the target detection zones 220a-d may represent the "desired" target detection zones and/or the target detection zones 220a-d of the sensors 200a- d after the configuration unit 210 has configured the sensors 200a-d.
  • the configuration unit 210 is arranged/placed in the floor of the space 202.
  • the configuration unit 210 in Fig. 3 is arranged/placed in the floor in the middle of the space 202, at a location 310 wherein the corners of the four target detection zones 220a-d meet (or are intended to meet after configuring the sensors 200a-d). It will be appreciated that the configuration unit 210 may be arranged/placed substantially anywhere in the space 202. However, it is preferred that the configuration unit 210 is arranged/placed in locations with the purpose of delineating the target detection zones 220a-d, wherein limits/borders between target detection zones 220a-d may constitute such locations.
  • the configuration unit 210 is adapted to transmit at least one signal 301 from the configuration unit 210 to the sensors 200a-d from the location 310.
  • the sensors 200a-d are able to receive the signal(s) 301 in a receiving range of the sensors 200a-d.
  • the configuration unit 210 may estimate detection zone(s) of a target of the sensors 200a-d, based on the transmitting range and on the receiving range of the plurality of receivers of the sensors 200a-d, and configure the sensor 200a-d with respect to the target detection zone(s) of the sensors 200a-d.
  • each sensor 200a-d receives the signals and may estimate the location 310 of the configuration unit 210 based on range and/or angle computations.
  • the configuration unit 210 configures the sensors 200a-d with respect to the location 310, based on the transmitted signal(s) 301. For example, in location 310, the configuration unit 210 may configure all sensors 200a-d to include the location 310 in the respective target detection zones 220a-d of the sensors 200a-d. Alternatively, if the configuration unit is arranged/placed on a limit/border between two (intended/desired) target detection zones, e.g. 220a, b, the configuration unit 210 may configure the sensors 200a, b to include this location in their respective target detection zones 220a, b, but configure the sensors 200c, d to exclude this location in their respective target detection zones 220c, d.
  • the configuration unit 210 may configure the sensors 200a, b to include this location in their respective target detection zones 220a, b, but configure the sensors 200c, d to exclude this location in their respective target detection zones 220c, d.
  • the configuration unit 210 may configure the sensor 200a to include the location in its target detection zone 220a, but configure the sensors 200b-d to exclude the location in their respective target detection zones 220b-d.
  • the configuration unit 210 thereby provides a consistent definition of target detection zones 220a- d for the respective sensors 200a-d, which leads to an even more energy-efficient lighting.
  • the signal transmitted by the configuration unit 210 may comprise information of the location 310 of the configuration unit 210.
  • the configuration unit 210 may thereby further configure the sensors 200a-d, e.g. based on the information of the actual position 310 of the configuration unit 210, leading to an even more improved configuration of the sensors 200a-d.
  • Fig. 4a shows a schematic view of the plurality of sensors 200a-d for presence detection of a target in a space 202, after the configuration of the sensors 200a-d as depicted in Fig. 2 and 3.
  • the space 202 comprises four target detection zones 220a-d in a plane of the space 202, as a result of the configuration of the sensors 200a-d.
  • the configuration unit 210 is arranged/placed in the floor of the space 202, in the target detection zone 220a. It will be appreciated that the configuration unit 210 may be placed at any location of interest in the floor of the space 202.
  • the configuration unit 210 is adapted to receive a signal 401 from the sensors 200a-d and estimate a transmitting range 230a-d of the respective sensor 200a-d based on the signal 401. It will be appreciated that the transmitting ranges 230a-d may further correspond to the actual target detection zones of the sensors 200a-d, i.e. that the
  • configuration unit 210 estimates a target detection zone based on a transmitting range 230a-d and on a receiving range.
  • the transmitting ranges 230a-d are further shown in Fig. 4b, showing an above view of the space 202 for an enhanced understanding of Fig. 4a.
  • the configuration unit 210 is arranged/placed in the intended/desired target detection zone 220a, close to the border/limit to the intended/desired target detection zone 220d.
  • the configuration unit 210 is adapted to receive a signal from the sensors 200a-d and estimate/determine a transmitting range 230a-d of the respective sensor 200a-d based on the signal 401.
  • the transmitting ranges 230a-d, as estimated by the configuration unit 210, are shown as an example in Fig. 4b.
  • the configuration unit 210 may be adapted to compare an estimated transmitting range of a sensor (e.g. the transmitting ranges 220a, d of sensors 200a, d) with respect to a desired/intended transmitting range.
  • the desired/intended transmitting range(s) may for example result in the square, target detection zones 230a-d as shown in Fig. 4b, as the target detection zones 220a-d are dependent on the transmitting ranges 230a-d of the sensors.
  • the configuration unit 210 may hereby diagnose a configuration of the transmitter of the sensors 200a-d.
  • the configuration unit 210 may determine that the transmitter(s) of the sensor 200d has a wider directionality in one direction (e.g. in the direction of target detection zone 220a) and has been configured incorrectly (as a result, the configuration unit 210 could receive stronger signals from an unanticipated direction.)
  • Fig. 4b shows a (possibly) undesired overlap of transmitting ranges 230a and 230d of sensors 200a and 200d, wherein the configuration unit 210 may be adapted to
  • the received signal 401 "footprint" of a sensor 200a-d may be compared with other sensors 200a-d.
  • the configuration unit may diagnose a configuration of the plurality of receivers of the sensors 200a-d.
  • Fig. 4c shows a schematic view of the plurality of sensors 200a-d for presence detection of a target in a space 202, after the configuration of the sensors 200a-d as depicted in Fig. 2 and 3.
  • the space 202 comprises four target detection zones 220a-d in a plane of the space 202, as a result of the configuration of the sensors 200a-d.
  • the configuration unit 210 is arranged/placed in the floor of the space 202, in the target detection zone 220a.
  • the configuration unit 210 may be placed at any location of interest in the floor of the space 202.
  • the configuration unit 210 is adapted to transmit at least one signal 501 to the sensors 200a-d and estimate a receiving range of the respective sensor 200a-d based on the signal(s) 501.
  • the configuration unit 210 estimates target detection zone(s) based on the receiving range(s) of the sensor(s).
  • the configuration unit 210 may hereby diagnose a faulty receiver orientation of the plurality of receivers of sensors 200a-d, e.g. by a inconsistent determination of angular information.
  • a target detection zone is dependent on the receiving range(s) of the sensor(s) 200a-d, a faulty receiver orientation may have the result of dislocated/undesired target detection zones.
  • the numbers of sensors, configuration units, detection zones of targets, etc, may vary.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

L'invention porte sur une unité de configuration (103, 210) pour configurer au moins un capteur (110, 200a-d) pour la détection d'une cible dans un espace (102, 202). Le capteur et l'unité de configuration comprennent au moins un émetteur (104) et une pluralité de récepteurs (105), et l'unité de configuration est connectée de façon fonctionnelle au capteur. L'unité de configuration est apte à estimer au moins une zone de détection d'une cible de capteur, sur la base d'une portée d'émission pour l'émetteur du capteur et d'une portée de réception pour la pluralité de récepteurs du capteur. De plus, l'unité de configuration est conçue pour configurer le capteur par rapport à la zone de détection d'une cible du capteur.
PCT/IB2012/053242 2011-07-19 2012-06-27 Unité de configuration et procédé pour détection de présence Ceased WO2013011395A2 (fr)

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