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WO2011079184A2 - Bloc d'alimentation et capteur de présence en réseau à capacité de signalisation intégrée - Google Patents

Bloc d'alimentation et capteur de présence en réseau à capacité de signalisation intégrée Download PDF

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Publication number
WO2011079184A2
WO2011079184A2 PCT/US2010/061759 US2010061759W WO2011079184A2 WO 2011079184 A2 WO2011079184 A2 WO 2011079184A2 US 2010061759 W US2010061759 W US 2010061759W WO 2011079184 A2 WO2011079184 A2 WO 2011079184A2
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WO
WIPO (PCT)
Prior art keywords
occupancy
signal
power pack
network
sensor
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/US2010/061759
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English (en)
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WO2011079184A3 (fr
Inventor
Drew Reid
William Stottlemyer
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Schneider Electric USA Inc
Original Assignee
Schneider Electric USA Inc
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.)
Filing date
Publication date
Priority claimed from US12/645,626 external-priority patent/US20110148193A1/en
Priority claimed from US12/645,674 external-priority patent/US20110148309A1/en
Application filed by Schneider Electric USA Inc filed Critical Schneider Electric USA Inc
Publication of WO2011079184A2 publication Critical patent/WO2011079184A2/fr
Publication of WO2011079184A3 publication Critical patent/WO2011079184A3/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
    • H05B47/105—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
    • H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
    • 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 lighting control systems and, more particularly, to lighting control systems using networked occupancy sensors and/or power packs.
  • Lighting is the largest single consumer of electric power in a typical building, often exceeding 30% of the total energy cost.
  • intelligent lighting control systems employ sensors and controllers to automatically and selectively power the light fixtures on and off.
  • the main function of an intelligent lighting control system is to provide light where and when it is needed and to reduce lighting in unoccupied areas.
  • Such lighting control systems can provide significant energy and cost savings.
  • lighting control helps to defer replacement costs of lamps and ballasts by reducing the number of annual burn hours.
  • Occupancy sensors typically provide a signal representing occupancy, which is derived from an occurrence of movement. Since an occupant is generally not continuously in motion, a time delay is added to an occurrence of movement to create a period of occupancy. This period of occupancy is assumed to represent an occupied area, such that the light fixtures in that area are activated and held on for as long as the area is occupied.
  • the time delay that is used to create the period of occupancy is a preset time interval that is typically between three and sixty minutes in duration.
  • occupancy sensor devices in a conventional lighting control system are often split into two components, namely, a power pack 110 and an occupancy sensor 120.
  • the sensor 120 receives operating power (on line 140) from the power pack 110 and provides a signal (on line 150) to the power pack 110, the signal representing occupancy of a monitored area.
  • the occupancy signal on line 150 is used by the power pack 110 to control an internal relay 130.
  • the relay 130 closes in response to the occupancy signal to activate a lighting fixture 160 connected through the relay 130.
  • PIR sensors activate lighting fixtures whenever a moving or additional heat source is detected.
  • Ultrasonic sensors emit ultrasonic vibrations at frequencies of 25 kHz or higher and listen to the return of echoes. If a significant Doppler shift is detected, the ultrasonic sensor indicates a high probability that there is movement in the area.
  • Ultrasonic sensor technology allows continuous detection of moving objects that reflect ultrasonic acoustic energy. The lighting fixtures are then activated in response to the detected movement.
  • the conventional occupancy sensor and power pack combination discussed above with reference to FIG. 1 provides a simple, basic level of energy management of lighting loads; however, the energy management capability is limited, in particularly, due to the singular purpose of the occupancy signal line 150 and limited functionality of the power pack 110. Therefore, a need exists for a power pack and occupancy sensor combination that can provide a higher level of energy management, while preferably also being easy to use, simple to install, and cost effective.
  • aspects and embodiments of the present invention are directed to a lighting control system which includes an enhanced occupancy sensor and/or an enhanced power pack, allowing for more sophisticated and/or accurate lighting control and energy management capability.
  • An enhanced occupancy sensor provides additional information, such as information regarding movement detected in the monitored area, in the form of a short-duration/high frequency signal superimposed on the occupancy signal.
  • the superimposed signal conveying the additional information is made high-speed/short- duration such that it is "invisible" to a conventional power pack, and thus the occupancy sensor remains compatible with conventional power packs.
  • a specialty power pack according to embodiments of the present invention is configured to detect and respond to the superimposed information signal, thereby providing enhanced functionality to the lighting control system, as discussed further below.
  • the programming to provide the superimposed information signal can be implemented in the firmware and/or software of the occupancy sensor, thus requiring little or no change to the hardware of the occupancy sensor.
  • the enhanced occupancy sensor may therefore be used seamlessly with both conventional and specialty power packs, and may be implemented as a "drop- in" component for legacy lighting control systems.
  • the power pack and/or occupancy sensor can be made networkable, providing the capability to link and coordinate multiple power pack/occupancy sensor combinations, thereby providing zone- wide control and energy management features, such as, for example, coordinated lighting of several areas, the ability to force lights on in a life- safety situation, and the ability to control other equipment in a monitored area (e.g., an air conditioning and/or heating system) responsive to detected occupancy in the area.
  • a networkable power pack includes installation and wiring to an occupancy sensor that is substantially identical to a conventional power pack and the power pack therefore also may be implemented as a "drop-in" component in a legacy lighting control system, without requiring changes to the occupancy sensors or wiring of the system.
  • a lighting control system comprises an occupancy sensor configured to provide an occupancy signal representative of occupancy of an area, a power pack having a signal input, a communications interface, and a relay, the power pack being configured to receive the occupancy signal at the signal input, a network coupled to the communications interface of the power pack, and a controller coupled to the network and configured to provide a control signal to the power pack via the network and to receive information from the power pack via the network.
  • the power pack is configured to actuate the relay to turn on or off a lighting circuit connected to the relay responsive to at least one of the occupancy signal and the control signal.
  • the network is a C-BusTM network.
  • C-Bus is a trademark of
  • the power pack is configured to provide power to the occupancy sensor.
  • the occupancy sensor may be, for example, a passive infrared sensor or an ultrasonic sensor.
  • the occupancy sensor is further configured to provide a movement signal superimposed on the occupancy signal, the movement signal being representative of movement activity within the area.
  • the occupancy signal may be, for example, a DC voltage signal having a predetermined voltage level.
  • the movement signal may comprise, for example, a plurality of drops to zero volts from the predetermined voltage level, each drop followed by a rise to the predetermined voltage level. In one example, the predetermined voltage level is approximately +24Vdc.
  • the information provided to the controller from the power pack may include information derived from at least one of the occupancy signal and the movement signal.
  • the controller is configured to turn on or turn off an apparatus, such as, for example, an air-conditioning system and/or heating system, responsive to the information received from the power pack.
  • the controller is configured to override the occupancy signal responsive to a condition, and to control the power pack to actuate the relay responsive to the control signal.
  • the condition may be, for example, occurrence of at least one of a fire alarm and a security alarm.
  • the lighting control system further comprises at least one additional power pack with an associated occupancy sensor, wherein each additional power pack is coupled to the network and configured to receive the control signal.
  • a lighting control system comprises an occupancy sensor configured to provide an occupancy signal representative of occupancy of an area, and a power pack having a signal input coupled to the occupancy sensor and configured to receive the occupancy signal from the occupancy sensor, a communications interface, and a relay, the power pack being configured to actuate the relay responsive to the occupancy signal to turn on or off a lighting circuit connected to the relay.
  • the lighting control system further comprises a network coupled to the communications interface of the power pack, and a controller coupled to the network and configured to provide a control signal to the power pack via the network and to receive information from the power pack via the network, wherein, responsive to a condition, the controller is configured to override the occupancy signal and control the power pack to actuate the relay responsive to the control signal.
  • a method of controlling a lighting circuit comprises acts of: receiving at a power pack an occupancy signal representative of an occupancy status of an area, providing information derived from the occupancy signal from the power pack to a remote device via a network, receiving at the power pack a control signal from the remote device via the network, and controlling a lighting circuit connected to the power pack responsive to at least one of the occupancy signal and the control signal.
  • controlling the lighting circuit includes actuating a relay to turn on the lighting circuit responsive to the occupancy signal indicating that the occupancy status of the area is occupied.
  • controlling the lighting circuit includes overriding the occupancy signal and controlling the lighting circuit responsive to the control signal in response to occurrence of a condition.
  • the condition may include, for example, receiving a signal indicating occurrence of one of a fire alarm and a security alarm.
  • the method further comprises an act of detecting a second signal superimposed on the occupancy signal. Detecting the second signal may include, for example, detecting a movement signal representative of movement activity within the area.
  • the method may further comprise controlling an apparatus coupled to the remote device responsive to the information received at the remote device from the power pack. Controlling the apparatus may include, for example, turning on or off at least one of an air conditioning system and a heating system responsive to the information received at the remote device from the power pack.
  • a lighting control system comprises an occupancy sensor configured to detect occupancy of a monitored area and to provide an occupancy signal representative of the occupancy of the monitored area, a network interface coupled to the occupancy sensor, a network coupled to the network interface of the power pack, and a controller coupled to the network and configured to receive information from the occupancy sensor via the network.
  • the network interface is integrated with the occupancy sensor.
  • the network is a C- BusTM network.
  • the occupancy sensor is configured to receive operating power via the C-BusTM network.
  • a lighting control system comprises an occupancy sensor configured to provide an occupancy signal representative of occupancy of an area and a movement signal superimposed on the occupancy signal, the movement signal representative of movement activity in the area, and a power pack coupled to the occupancy sensor and configured to receive the occupancy signal and the movement signal, the power pack comprising a relay configured to be coupled to a lighting circuit, and the power pack being configured to actuate the relay responsive to at least one of the occupancy signal and the movement signal.
  • the occupancy sensor is a passive infrared sensor. In another example, the occupancy sensor is an ultrasonic sensor. In one example, the occupancy signal is a DC voltage signal having a predetermined voltage level. In another example, the movement signal comprises a plurality of drops to zero volts from the predetermined voltage level, each drop followed by a rise to the predetermined voltage level. The predetermined voltage level may be, for example, approximately +24Vdc. In one example, the power pack is configured to supply power to the occupancy sensor. In one example, the lighting control system further comprises a network, and a controller coupled to the network and configured to provide a control signal, wherein the power pack comprises a communications interface coupled to the network and configured to receive the control signal and to provide information to the controller.
  • the information may include, for example, information derived from at least one of the occupancy signal and the movement signal.
  • the network is a C-BusTM network. "C-Bus" is a trademark of Schneider Electric.
  • the controller is configured to override the occupancy signal and control the power pack to actuate the relay responsive to the control signal.
  • the lighting control system further comprises a timer coupled to the power pack and configured to receive information derived from the movement signal and to generate a time delay based on the information to set a period of occupancy for the monitored area.
  • a method of controlling a lighting circuit comprises acts of receiving an occupancy signal representative of an occupancy status of an area, detecting a second signal superimposed on the occupancy signal, and controlling the lighting circuit responsive to at least one of the occupancy signal and the second signal.
  • detecting the second signal includes detecting a movement signal representative of movement activity within the area. Detecting the movement signal may include, for example, detecting on a signal line a voltage rise from approximately zero volts to a predetermined voltage level.
  • the method may further comprise an act of communicating information derived from at least one of the occupancy signal and the movement signal to a remote device via a network.
  • the method further comprises acts of receiving a control signal from the remote device via the network, and controlling the lighting circuit responsive to the control signal. Controlling the lighting circuit may include, for example, actuating a relay to turn on the lighting circuit responsive to the occupancy signal indicating that the occupancy status of the area is occupied.
  • the method may further comprise communicating information derived from the movement signal to a timer, setting a period of occupancy for the area based on the information provided to the timer, and holding the lighting circuit on for a duration of the period of the occupancy.
  • an occupancy sensor comprises a sensor configured to detect movement in a monitored area, and a signal output coupled to sensor, wherein the occupancy sensor is configured to produce at the signal output an occupancy signal indicating that the monitored area is occupied responsive to a first instance of detected movement in the monitored area, and a movement signal superimposed on the occupancy signal.
  • the occupancy signal is a DC voltage signal having a predetermined voltage level, such as, for example, +24Vdc.
  • the movement signal comprises a plurality of drops to approximately zero volts from the predetermined voltage level, each drop followed by a rise to the predetermined voltage level.
  • the occupancy sensor is configured to cause each drop of the plurality of drops to approximately zero volts responsive to an additional instance of movement detected by the sensor.
  • the sensor may be, for example, an ultrasonic sensor or an infrared sensor.
  • FIG. 1 is a block diagram of a conventional occupancy sensor and power pack combination
  • FIG. 2 is a block diagram of one example of an occupancy sensor and power pack combination according to aspects of the invention
  • FIG. 3 is a signal diagram illustrating one example of a movement signal superimposed on an occupancy signal, in accordance with aspects of the invention.
  • FIG. 4 is a block diagram of another example of an occupancy sensor and power pack combination according to aspects of the invention;
  • FIG. 5 is a block diagram of one example of a C-BusTM network configuration
  • FIG. 6 is a block diagram of one example of a network-connected occupancy sensor according to aspects of the invention.
  • a conventional power pack 110 provides two functions, namely supplying power to the occupancy sensor 120 and switching an electrical load (e.g., lighting fixture 160) based on an occupancy signal from the occupancy sensor 120.
  • an electrical load e.g., lighting fixture 160
  • this conventional approach provides the most basic functionality for energy management of lighting loads, other desired capabilities are not supported.
  • many applications would benefit from receiving additional information from the occupancy sensor 120 beyond merely a simple occupancy signal, for example, by allowing for more sophisticated and/or accurate lighting and other systems control.
  • aspects and embodiments are directed to lighting control systems and methods that employ improved power packs and/or occupancy sensors capable of processing and/or providing additional information and thereby provide enhanced lighting control capabilities.
  • improved power packs are capable of being networked together, for example, via a network bus, wireless communication link, or other networking system, as discussed further below.
  • the occupancy sensor and power pack together can be considered an "island of control" that controls one or more lighting fixtures connected to the power pack. As a stand-alone control system, the ability to coordinate one or more islands of control is not possible.
  • aspects and embodiments are directed to lighting control systems and methods that include linking two or more islands of control together to form a "zone of control,” thereby enabling enhanced control options such as, for example, overriding the occupancy status for a given island of control as part of a zone-wide control strategy, as discussed further below.
  • FIG. 2 there is illustrated a block diagram of one example of a power pack 210 and occupancy sensor 220 which together form an island of control 225.
  • the power pack 210 provides power to the occupancy sensor 220 via line 240.
  • the occupancy sensor may be a passive infrared sensor, an ultrasonic sensor, or a dual infrared-ultrasonic sensor, for example.
  • the power provided by the power pack 210 may typically be DC (direct current) power, which may be provided via any suitable wiring connection, including, for example, a low voltage/low current three-wire or two- wire circuit, or an RJ-type connector and wiring.
  • line 240 is illustrated as a single line, it is to be appreciated that line 240 may represent multiple physical wiring lines.
  • the power pack 210 may itself receive power from an external source via power line 230.
  • the power line 230 may represent multiple physical lines depending, for example, on the type of wiring used.
  • the power pack may be powered by an internal battery (not shown).
  • the occupancy sensor 220 provides an occupancy signal to the power pack 210 on signal line 250.
  • the occupancy signal is either a constant level voltage, for example, 24 Volts (+24Vdc), or no voltage (0V).
  • the occupancy sensor 220 is configured with an embedded signaling method to provide additional information on the signal line 250, as discussed further below. It is to be appreciated that although signal line 250 is illustrated as a single line in FIG. 2, it may represent multiple physical lines or links in some embodiments.
  • the power pack 210 controls a load 260, which may include one or more lighting circuits, via one or more internal relays (not shown) responsive to the signal received from the occupancy sensor 220.
  • the power pack 210 may also receive a signal on line 270 from an external control panel, computer, or other device, as also discussed further below.
  • the occupancy sensor 220 is configured to provide additional information, for example, a signal representative of movement rather than occupancy, in addition to the occupancy signal.
  • additional information for example, a signal representative of movement rather than occupancy
  • many applications would benefit from receiving information in addition to the occupancy signal from the occupancy sensor 220.
  • an external timer can be configured to receive the movement signal (or a signal representative of the movement signal) and the movement information can be used to generate the time delay to create the period of occupancy discussed above.
  • An external timer system may not be reliable based on the conventional occupancy signal because repeated motion by the occupant could continually trigger the sensor, causing the signal to stay in the occupied state and therefore not supply updated information to the external timer.
  • the occupancy sensor 220 may be modified to supply a movement signal on an additional signal line; however, this solution may require another signal line, a different sensor product, and/or an option to select an additional mode of operation of the sensor. As a result, application difficulties may arise due to miswiring, installation of the wrong sensor product, or selection of the wrong mode of operation.
  • the occupancy sensor 220 is configured to superimpose a short-duration movement signal onto the occupancy signal.
  • the occupancy sensor operates normally with a conventional power pack, but will also report movement to a power pack 210 (or other device) that is configured to receive the movement signal.
  • the movement signal is superimposed on the same signal line 250 that may be alternately used with a conventional power pack to report occupancy, as discussed above.
  • the movement signal is made high-speed/short-duration such that it does not disrupt reporting of the occupancy signal to a conventional power pack, and the conventional power pack does not respond to the high-speed movement signal.
  • a specialty power pack according to embodiments of the present invention is configured to detect and extract the movement signal, as discussed further below.
  • the occupancy sensor 220 provides a real-time movement signal to a device, such as a specialty power pack 210, connected to the occupancy sensor in a manner such that the occupancy sensor remains compatible with conventional power packs and may be used seamlessly with both conventional and specialty power packs.
  • a device such as a specialty power pack 210
  • occupancy is indicated by a voltage level on the signal line 250.
  • the voltage level to indicate occupancy is +24Vdc; however, it is to be appreciated that other voltage levels may be used consistent with appropriate signal levels for various applications.
  • first movement in a monitored space is indicated when the signal line voltage rises from 0V to +24Vdc.
  • Each additional movement as detected by the occupancy sensor is indicated by a momentary drop to 0V followed by a rise again to +24Vdc. An example of this signaling is illustrated in FIG. 3.
  • the predominantly constant +24Vdc signal 310 constitutes the occupancy signal, and the momentary drops 320 to 0V, followed by rises returning the signal to +24Vdc, constitute the superimposed movement signal, with each drop 320 followed by a rise indicating an instance of movement.
  • the first rise 330 is the first instance of movement and also triggers the occupancy signal.
  • the occupancy signal level need not be +24Vdc, but may instead be any suitable voltage level.
  • an inverse signaling method may be used, where occupancy is indicated by a OV level and instances of movement are indicated by momentary signal rises to a predetermined voltage level, followed by returns to OV.
  • the duration of the drop 320 is selected to be short with respect to response time of a conventional power pack relay that may be driven from the signal line 250.
  • the occupancy sensor 220 can be used with a conventional power pack without modification.
  • the movement signal is a hidden feature within an otherwise standard occupancy sensor.
  • a specialty power pack 210 with electronic circuitry configured to detect each rise from 0V to +24Vdc (or other movement signaling method), however, receives real-time movement information.
  • the occupancy sensor 220 may be used seamlessly with conventional power packs or with specialty power packs 210 which are able to make use of the additional information provided by the occupancy sensor.
  • Realtime monitoring of movement in areas can help building owners or managers understand facility utilization by monitoring movement patterns, and provide information that can be used to improve energy management in a building or area.
  • the programming to provide the movement signal is added to the firmware and/or software of the occupancy sensor 220 (in addition to the normal operating code), thus requiring little or no change to the hardware of the occupancy sensor.
  • the enhanced occupancy sensor may be implemented as a "drop-in" component to legacy lighting control systems, with few or no hardware changes required to either the sensor itself or the lighting control system.
  • the occupancy sensor 220 is configured to provide a movement signal, in addition to the occupancy signal, to the power pack 210.
  • the occupancy sensor 220 is configured to provide a signal, in addition to the occupancy signal, representative of information other than movement.
  • This additional information signal may be provided in the same way as discussed above for providing the movement signal.
  • the additional information may include, for example, ambient light conditions at the occupancy sensor 220, diagnostic and/or maintenance information, for example, pre-set sensitivity levels of the occupancy sensor, whether the occupancy sensor is using ultrasonic or infrared detection, and whether the motion detected was major or minor movement (according to pre-set definitions).
  • individual islands of control 225 are networked together to form a zone of control, thereby enabling enhanced control and energy management features. It is also to be appreciated that individual power packs 210, with or without associated occupancy sensors 220, may be networked together to form a zone of control. In a system that includes only stand-alone islands of control, the ability to co-ordinate two or more islands of control is lacking. In contrast, a networkable power pack 210 according to aspects and embodiments provides the capability to connect the power packs to an external control system, allowing the information from an associated occupancy sensor to be reported to the control system for monitoring or as input to a larger-scale control scheme.
  • information gathered from monitoring occupancy in an area may be used to signal an air conditioning and/or heating system to maintain comfort in the occupied area.
  • the lighting fixture(s), or other load 260, associated with an island of control can be controlled (i.e., turned on or off), via the power pack 210, by an external command, provided for example, on line 270.
  • Allowing external control (i.e., from outside the island of control formed by a power pack and its associated occupancy sensor) of the switching of a load 260 may provide several benefits and advantages, such as, for example, coordinated lighting of several areas, such as along an egress path from a building, and the ability to force lights on in a life-safety situation, such as the occurrence of a fire or security alarm.
  • allowing external control of the switching of the load 260 may provide the ability to override the occupancy signal from one or more occupancy sensors and turn off lights or other loads in a given area, regardless of the occupancy status of the area, as part of overall control/energy management strategy. This capability is becoming more desirable as the cost of energy increases.
  • a specialty networkable power pack 210 may provide desired control and coordination functionality, as in the examples discussed above, in a simple and efficient manner, without requiring complex and costly building automation and/or networked lighting control systems.
  • a specialty power pack 210 includes installation and wiring to an occupancy sensor 220 that is identical to a conventional power pack 110, and further includes a system connection to support zone- wide (e.g., building- wide, floor- wide, etc.) control strategies.
  • zone- wide e.g., building- wide, floor- wide, etc.
  • the networkable power packs 210 may be used with conventional occupancy sensors 120 and/or enhanced occupancy sensors 220 discussed above.
  • the networkable power packs may be implemented as "drop-in" components in a legacy lighting control system, without requiring changes to the occupancy sensors or wiring of the system.
  • the networkable power pack may thus provide enhanced functionality in a lighting control system, with minimal changes to the overall system, thus providing an easy to implement and cost effective "upgrade” to legacy lighting control systems.
  • the power pack 210 provides supply voltage, for example, +24Vdc, to the connected occupancy sensor 420 over line(s) 240.
  • the power pack 210 includes a power supply 415 that receives power on lines 230 and provides power to the occupancy sensor 420 on line(s) 240.
  • the occupancy sensor 420 may be a conventional occupancy sensor 120 or an enhanced occupancy sensor 220.
  • the power supply 415 is preferably a switch mode power supply to handle a wide input voltage range.
  • the occupancy sensor 420 reports an occupancy signal, and optionally a superimposed movement signal or other information, to the power pack 210 on signal line 250.
  • the power pack 210 monitors the information provided on the signal line 250 and uses power control circuitry 440 to determine the desired control state of a connected relay 450, which is internal to the power pack 210 as illustrated in FIG. 4.
  • relay 450 may be external to the power pack 210.
  • the relay 450 may be replaced with another load switching device, such as, for example, silicon controlled rectifiers (SCRs), Triacs, transistors, or other electrical load switching devices that may be controlled by power control circuitry 440.
  • SCRs silicon controlled rectifiers
  • Triacs Triacs
  • transistors or other electrical load switching devices that may be controlled by power control circuitry 440.
  • the power control circuitry 440 may include, for example, a programmable controller, microprocessor, or other control circuitry capable of accepting and interpreting one or more externally originating signals provided from the occupancy sensor 220 and/or line 270 discussed above.
  • the control circuitry 440 is also capable of providing control signals to actuate the relay 450.
  • the control circuitry 440 is also capable of interpreting the occupancy signal, optionally the superimposed movement signal discussed above, and the externally originating control signal from line 270 into control signals to actuate the relay 450.
  • the relay 450 is used to control power to a connected load 260.
  • Line 460 represents the flow of the control signals from the control circuitry 440 to the relay 450.
  • the power pack 210 further includes a communications interface 470 that allows the power pack 210 to be connected to and communicate with a network 480.
  • the communications interface 470 allows the power pack 210 to receive control signals (for example, an override signal as discussed above) and/or information, such as the status of another network-connected device, from an external controller via the network 480.
  • the power pack 210 may provide information, for example, the signal(s) sent from the occupancy sensor 420 and/or a status of the sensor, to external components coupled to the network 480 via the communications interface 470.
  • the network 480 is a C-BusTM network used by various control systems available from the Schneider Electric company.
  • the communications interface 470 may include a connector, such as an EIA/TIA Category 5 connector or RJ-45 connector for connection to network wiring, or a wireless transceiver for wireless connection to network 480.
  • the power pack 210 may also include isolation circuitry 490 to isolate the occupancy sensor 420 from the communications interface 470 and network 480, as discussed further below. Referring to FIG. 5, there is illustrated one example of a control system including a power pack 210 coupled to the system via a C-BusTM network 480.
  • the C-BusTM network includes a router 510 that includes a power supply 520 coupled to an interface device 530, as indicated by connection 540.
  • the router 510 is coupled to a control panel 550 that in turn is coupled to a computer system 560 via a communications link, such as an Ethernet link 570.
  • Control software 580 may be downloaded onto the computer 560 to allow the computer to interface with, and optionally control, the control panel 550 and/or devices, such as the power pack 210, connected to the C-BusTM network.
  • FIG. 5 illustrates one example of a C-BusTM network and control system; however, there may be numerous variations of a C-BusTM network, and the power pack 210 may be coupled to other power packs and/or other devices using many different networks 480, not limited to a C-BusTM network or to the specific example illustrated in FIG. 5.
  • the power pack 210 is configured to operate with a conventional occupancy sensor 120 with no interposing interfaces or additional power pack to sensor wiring required.
  • the power pack 210 receives the occupancy signal from the occupancy sensor 420 and may then use the occupancy signal, as in conventional systems, to drive the relay 450, and/or may communicate the occupancy signal or other information to an external device via the communications interface 470 and network 480.
  • the control circuitry 440 receives the occupancy signal from the occupancy sensor 420 and determines whether to allow the relay 450 to actuate responsive to the occupancy signal or whether to override the occupancy signal and control the relay based on a signal received via the communications interface 470.
  • zone-wide control may be achieved using conventional occupancy sensors that are controlled and coordinated via networked power packs 210.
  • the occupancy sensor 420 is configured to provide additional information, such as a movement signal, for example, superimposed on the occupancy signal on line 250.
  • the control circuitry 440 may be configured to monitor and respond to this superimposed signal.
  • the occupancy sensor 420 reports occupancy status of its associated monitored area as well as movement activity in the area to the control circuitry 440 of the power pack 210.
  • occupancy is indicated by +24Vdc on the signal line 250, no occupancy by 0 Vdc on the signal line, and movement activity is reported as a 1 millisecond (ms) pulse (+24 Vdc to OVdc) each time movement is detected by the occupancy sensor 420.
  • ms millisecond
  • the control circuitry 440 may take any of numerous actions in response to detection of the movement signal.
  • the control logic 440 may be configured to determine whether to allow the relay 450 to be responsive to the occupancy signal, the movement signal, or to another signal received via the communications interface 470, which may override the occupancy and/or movement signal.
  • the movement signal may be used to control a timer, which may be internal to the power pack 210 or externally connected to either the power pack 210 or the occupancy sensor 420.
  • supplying the movement signal (or information representative of the movement signal) to an external device via the communications interface 470 and network 480 may allow for remote adjustment/control of the timer or of another device.
  • various aspects and/or functions of the power pack 210 are controlled by an external device via the network 480 and the communications interface 470.
  • a control signal supplied via the communications interface 470 may be used to override the occupancy and/or movement signal provided by the occupancy sensor 420.
  • the network 480 is a C-BusTM network
  • the relay 450 may be switched by a C-BusTM device connected to the network 480, rather than by the power pack 210.
  • the power pack 210 is powered via the C-BusTM network 480, thus obviating the need for the power lines 430.
  • the occupancy sensor 420 may also be powered via the C-BusTM network 480, rather than by the power supply 415.
  • the occupancy sensor 420 When the occupancy sensor 420 is powered via the C-BusTM network 480, the sensor may be referred to as being in a non-isolated mode.
  • the power pack 210 may include isolation circuitry 490 that isolates the occupancy sensor 420 from the C-BusTM network 480, and the occupancy sensor is therefore powered by the power supply 415.
  • an occupancy sensor 620 may be coupled directly to a C-BusTM network, without an intervening power pack 210.
  • a block diagram of an example of such a system is illustrated in FIG. 6.
  • a network interface 615 is used to achieve communication between the C-BusTM network 480 and the occupancy sensor 620.
  • the network interface 615 may be external to the occupancy sensor 620 and connected to the occupancy sensor, as illustrated in FIG. 6, or may be integrated with the occupancy sensor.
  • a C-BusTM device or controller 635 may be coupled to the C-BusTM network 480 and may monitor the signals (e.g., occupancy and/or movement) supplied by the occupancy sensor 620.
  • the C-BusTM device or controller 635 may switch a load 260 responsive to a signal from the occupancy sensor 620.
  • the power pack 110/210 may be eliminated and the occupancy sensor 620 may interface directly with the C-BusTM network, or with a controller connected via another type of network.
  • the network interface 615 may include a power supply to power the occupancy sensor 620.
  • the occupancy sensor 620 may operate in an isolated mode, receiving power from the network interface 615, or a non-isolated mode, receiving power from the C-BusTM network 480.
  • the network interface 615 may be considered a type of power pack, and the interface-occupancy sensor combination may therefore be similar or analogous to an integrated power pack-occupancy sensor combination.
  • the power pack 210 may include, or may be connected to, a second relay 450 (not shown in FIG. 4) to allow bi- level lighting control.
  • the power pack 210 may provide a variable current output through the relay 450, for example, 4 - 20 mA, thereby allowing dimming control of a load 260 with appropriate ballast.
  • the power pack 210 may be used as a control point within the C-BusTM (or other) network 480 without a connected occupancy sensor 420.
  • the power pack 210 as a control point without a sensor may include a keypad or other manual input to allow an operator to influence aspects of a networked lighting control system.
  • a lighting control system may include an enhanced occupancy sensor 220 which may provide additional information, such as a movement signal, superimposed on its conventional occupancy signal, a specialty power pack configured to detect and monitor the superimposed information signal, a networkable power pack or occupancy sensor, or any combination of these.
  • an enhanced occupancy sensor 220 which may provide additional information, such as a movement signal, superimposed on its conventional occupancy signal, a specialty power pack configured to detect and monitor the superimposed information signal, a networkable power pack or occupancy sensor, or any combination of these.
  • embodiments include the used of an enhanced occupancy sensor with a conventional power pack, an enhanced power pack with a conventional occupancy sensor, as well as the combination of an enhanced occupancy sensor with a networkable power pack capable of detecting and responding to the additional information provided by the enhanced occupancy sensor.
  • embodiments include networkable occupancy sensors which may be used with a C-BusTM network, for example, with or without an associated power pack, as well as a networkable power pack which may be used with or without a connected occupancy sensor. As discussed above, each of these embodiments may provide benefits and advantages for building control and/or energy management over the conventional island of control that includes only a conventional power pack with an associated connected conventional occupancy sensor.
  • any of the connections and/or communications links illustrated and discussed above may be wired or wireless links.
  • any of the connections and/or communications links illustrated and discussed above may be wired or wireless links.
  • the disclosure refers primarily to occupancy sensors, other types of sensors may be used in addition to or instead of occupancy sensors, such as, for example, light level sensors, motion sensors, fire and/or smoke detectors, water sensors, etc. Accordingly, the foregoing description and drawings are by way of example only, and the scope of the invention should be determined from proper construction of the appended claims, and their equivalents.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention porte sur un système de commande d'éclairage qui comprend un capteur de présence amélioré et/ou un bloc d'alimentation amélioré, offrant des capacités de commande d'éclairage et de gestion d'énergie plus sophistiquées et/ou précises. Dans un exemple, le capteur de présence fournit des informations supplémentaires, telles que des informations concernant un mouvement détecté dans la zone surveillée, sous la forme d'un signal superposé au signal de présence, et un bloc d'alimentation spécial est configuré pour détecter le signal d'informations superposé et y répondre, offrant de ce fait une fonctionnalité améliorée au système de commande d'éclairage. Le signal superposé transportant les informations supplémentaires est rendu de rapide/courte durée de telle manière qu'il soit « invisible » à un bloc d'alimentation classique et le capteur de présence reste compatible avec des blocs d'alimentation classiques. Dans un autre exemple, le bloc d'alimentation et/ou le capteur de présence peuvent être mis en réseau, offrant la capacité de lier et de coordonner de multiples combinaisons bloc d'alimentation/capteur de présence, offrant de ce fait des fonctions de commande et de gestion d'énergie sur plusieurs zones, telles qu'un éclairage coordonné de plusieurs zones, la capacité d'imposer un allumage de lampes dans une situation de sécurité des personnes, et la capacité de commander d'autres équipements dans une zone surveillée (par exemple, un système de conditionnement d'air et/ou de chauffage) en réponse à une présence détectée dans la zone.
PCT/US2010/061759 2009-12-23 2010-12-22 Bloc d'alimentation et capteur de présence en réseau à capacité de signalisation intégrée Ceased WO2011079184A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/645,626 US20110148193A1 (en) 2009-12-23 2009-12-23 Networked occupancy sensor and power pack
US12/645,674 2009-12-23
US12/645,626 2009-12-23
US12/645,674 US20110148309A1 (en) 2009-12-23 2009-12-23 Occupancy sensor with embedded signaling capability

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WO2011079184A2 true WO2011079184A2 (fr) 2011-06-30
WO2011079184A3 WO2011079184A3 (fr) 2011-08-25

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WO2009023965A1 (fr) * 2007-08-21 2009-02-26 William Wiener Appareils interactif, systèmes d'appareils et procédés de commande d'appareils, et commandes associées
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US9313852B2 (en) 2012-05-10 2016-04-12 Koninklijke Philips N.V. LED driver with external temperature-compensated illumination control signal modulator

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