EP2342948A1 - Élément capteur avec un capteur lumineux, émetteur destiné à communiquer avec l'élément capteur ainsi que système d'éclairage avec élément capteur - Google Patents

Élément capteur avec un capteur lumineux, émetteur destiné à communiquer avec l'élément capteur ainsi que système d'éclairage avec élément capteur

Info

Publication number
EP2342948A1
EP2342948A1 EP08875244A EP08875244A EP2342948A1 EP 2342948 A1 EP2342948 A1 EP 2342948A1 EP 08875244 A EP08875244 A EP 08875244A EP 08875244 A EP08875244 A EP 08875244A EP 2342948 A1 EP2342948 A1 EP 2342948A1
Authority
EP
European Patent Office
Prior art keywords
sensor element
sensor
control signal
light
element according
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
EP08875244A
Other languages
German (de)
English (en)
Inventor
Axel Pilz
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.)
Osram GmbH
Original Assignee
Osram GmbH
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
Application filed by Osram GmbH filed Critical Osram GmbH
Publication of EP2342948A1 publication Critical patent/EP2342948A1/fr
Ceased legal-status Critical Current

Links

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
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • H05B47/195—Controlling the light source by remote control via wireless transmission the transmission using visible or infrared light

Definitions

  • Sensor element with a light sensor, transmitter for communication with sensor element and illumination system with sensor element
  • the invention relates to a sensor element with a light sensor, a transmitter for communication with the sensor element and a lighting system with the sensor element.
  • Ceiling mounted sensors detect the brightness, e.g. indirectly by reflection of the light on furniture surfaces or on the floor. In this case, it is desirable to keep the total brightness from the combination of daylight and artificial light as constant as possible at a predefinable desired value.
  • a setpoint specification can only be made on site in the individual installation situation.
  • the artificial light is dimmed to a desired brightness (eg, so that sets a desired working brightness on a desk).
  • the sensor measured value associated with this situation is stored as setpoint value in the control unit or in the ECG.
  • such an adjustment is necessary only once with the commissioning of the lighting device.
  • a change is only necessary in exceptional cases, eg in the event of a major change in the room or its device or if the position of the sensor is changed. Often, the customer should have no opportunity to change this setpoint, as otherwise may fall unknowingly below the required minimum brightness at workstations.
  • the adjustment means are integrated in the sensor element.
  • a sensor mounted on the ceiling is difficult to reach or requires considerable effort (time, cost, security) for each sensor, e.g. to reach in an office space with high ceilings by means of a ladder.
  • the object of the invention is to avoid the above-mentioned disadvantages and in particular to provide an effective approach to provide setpoint specifications for sensor elements of a lighting system.
  • a sensor element is specified with a light sensor
  • Control signal is set up and - in which the light sensor is a brightness sensor for a lighting system.
  • the lighting system can be a single lamp and / or lamp or a plurality of lamps / lamps, which are combined in a composite, for example by means of a bus system and / or a control system.
  • the approach described here makes it possible to use the light sensor in such a way that it is additionally designed to receive the control signal and thus no further sensor (for example a separate IR sensor) is necessary for setting the sensor element.
  • the light sensor comprises at least one of the following components: a phototransistor,
  • the sensor element is integrated in a lamp or luminaire or in a control device, in particular an electronic ballast.
  • the sensor element may also be (only) logically, functionally and / or physically connected to the control unit and / or the electronic ballast.
  • control signal is an analog or a digital control signal.
  • control signal comprises a modulated light signal.
  • control signal comprises a signal for setting a desired value and / or the desired value.
  • control signal comprises a command for dimming upwards, for dimming down and for saving the setpoint value.
  • the sensor element receives the control signal and forwards it to a control unit.
  • the sensor element can forward the control signal to the control unit without modification and / or evaluation in the sensor element.
  • the controller may be a central controller or another device on a bus system. Accordingly, the control signal can be forwarded by means of a suitable protocol via the bus system.
  • the sensor element receives the control signal, processes and forwards the processed control signal and / or a signal resulting therefrom to a control unit.
  • An alternative embodiment is that the sensor element is coupled to a bus system.
  • bus system is based on a DALI standard bus system.
  • the bus system can use or provide (implement) functions in accordance with the functions of the DALI standard.
  • the above object is also achieved by means of a transmitter for communication with the sensor element as described herein,
  • control signal is emitted by the light source.
  • the programming interface can be designed as a simple operating element, upon actuation of which a corresponding signal is emitted by means of the light source.
  • a development consists in that the programming interface comprises at least one operating element and an evaluation unit for evaluating the operating element and / or for controlling the light source.
  • the control element may e.g. comprise at least one button and / or at least one switch.
  • a modulated light signal is generated and emitted via the light source.
  • the transmitter has a possibility of focusing the light emitted by the light source so that an alignment with the sensor element and an adjustment thereof are correspondingly simplified.
  • the light source comprises at least one LED and in particular serves for emission of the control signal and for general lighting.
  • a lighting system comprising at least one sensor element as described herein.
  • Fig.l an arrangement for programming a
  • Sensor element via a light sensor, wherein the sensor element can be connected as an independent device with a bus system or with a lamp / lamp or with an electronic ballast or integrated therein;
  • Fig. 2A is a block diagram of the transmitter including a power source (e.g., a battery), a stylus, an evaluation unit, and a light emitting diode;
  • a power source e.g., a battery
  • stylus e.g., a stylus
  • evaluation unit e.g., a touch panel
  • light emitting diode e.g., a light emitting diode
  • Fig.2B is a simplified block diagram of
  • Fig.3 different digital waveforms in the form of a luminous flux as a function of time for the commands or signals "dimming up”, “dimming down” and “save setpoint";
  • the approach presented here also uses an existing light sensor as a receiver for digital and / or analog signals.
  • the transmitter is preferably a light source comprising at least one light-emitting diode (LED).
  • a sensor element may be passed over the light sensor, e.g. a phototransistor, a photodiode or a photoresistor are configured by means of the light source.
  • the light source transmits to the light sensor signal having a predetermined coding, so that both dimming commands for setting a reference brightness and other commands, e.g. a subsequent memory command, can be transmitted.
  • the signals comprising the dimming commands and / or the other commands can be transmitted or forwarded from the sensor element to a control device or to an electronic ballast (EVG) of the lighting system.
  • EDG electronic ballast
  • the sensor element itself it is possible for the sensor element itself to have a preprocessing or evaluation unit, by means of which the signals from the light source are processed and if necessary converted into standardized or predefined data units or data telegrams and transmitted to the control unit or the electronic ballast of the lighting system.
  • the signals transmitted from the light source to the sensor element may be digitally coded or analog signals. It is thus possible for the sensor element to be exposed to defined brightnesses or a sequence of defined brightnesses on the basis of the light source, which are detected and / or converted by the sensor element as corresponding commands. For example, a sequence of light pulses of different brightnesses can be transmitted to the sensor element.
  • the light source can transmit to the sensor element both visible and invisible light.
  • the light can be modulated in different ways, wherein the modulation transmits at least one predetermined signal and / or command to the sensor element.
  • the light source is preferably programmable, so that specific setpoint values can be input variably and a corresponding coded signal is generated from the input, which can be transmitted to the sensor element.
  • the sensor element can confirm receipt of a signal or a permissible command. This can e.g. by briefly changing a state, e.g. one of the brightness of a display (e.g., a light emitting diode) of the sensor element.
  • a state e.g. one of the brightness of a display (e.g., a light emitting diode) of the sensor element.
  • the existing for the light control light sensor can also be used as a receiver or as part of a receiver of said signals emitted by the light source.
  • V ( ⁇ ) -corrected receiver element can also be used as a transmitter light sources without IR component, ie in particular LEDs.
  • the transmitter can e.g. designed as a high-intensity LED flashlight with a corresponding additional modulator.
  • the transmitter preferably comprises a programming option for inputting the command or setpoint to be transmitted to the sensor element.
  • FIG. 1 shows, by way of example, an arrangement for programming a sensor element 101 via a light sensor 102.
  • the sensor element 101 can be connected to a bus system 103 as an independent device. It may also be connected to or integrated into a lamp / lamp or an electronic ballast.
  • each component may be or include at least one of a sensor element, an electronic ballast, a light or lamp, a controller.
  • the bus system is, for example, a DALI bus system or a bus system based on the DALI standard.
  • the bus system can be based on an extension of a DALI standard or
  • FIG. 1 shows a transmitter 107 (eg a light source) for communication with the sensor element 101 via the light sensor 102.
  • the transmitter 107 comprises a programming interface 108 with, for example, an input unit for selection, specification and / or adjustment a setpoint. Accordingly, a modulation or coding unit can be provided which generates a signal which can be emitted via at least one light-emitting diode 109.
  • the programming interface 108 is configured such that three functions “dimming up”, “dimming down” and “storing setpoint value” can be selected and the transmitter generates corresponding signals or commands and emits them via the at least one light-emitting diode.
  • FIG. 2A shows a block diagram of the transmitter 107 comprising a current source 1 (for example a battery), a push-button 2, an evaluation unit 3 and a light-emitting diode 4.
  • a current source 1 for example a battery
  • a push-button 2 for example a push-button
  • an evaluation unit 3 for example a push-button
  • a light-emitting diode 4 for example a light-emitting diode 4.
  • the evaluation unit 3 may e.g. be designed as a microprocessor or include such.
  • the button 2 can be used for programming or setting a signal to be emitted.
  • a long press on the button 2 a command "dimming”
  • a short press on the button 2 a command “switch” (dimme between up and down)
  • a double pressure similar to a double click
  • the evaluation unit 3 generates a signal to be emitted via the light-emitting diode 4.
  • FIG. 2B shows a simplified block diagram of the sensor element 101 from FIG. 1 with a photodiode 5 as a light sensor, which is connected to an optional evaluation unit 6.
  • the sensor element 101 is connected to the bus system 103 as shown in FIG.
  • an operating or control device (eg electronic ballast) 7 is also connected to the bus system 103.
  • 3 shows various digital signal courses 301 to 303 in the form of a luminous flux as a function of time for the commands "dimming up", “dimming down” and "storing setpoint value".
  • each command is a periodic signal that is emitted for a certain amount of time (e.g., during a key press or for a given fixed amount of time due to a key press).
  • the period may be the same for the various commands, and preferably a ratio of the on / off times (ratio of the time for the luminous flux to the time for luminous flux off) per period may be different for each command.
  • FIG. 4 shows various analog signal waveforms 401 to 403 in the form of a luminous flux as a function of time for the commands "dimming up", “dimming down” and "storing setpoint value".
  • a threshold of the analog signals for example, a threshold of the analog signals
  • Sensor saturation 404 used to determine a period tl to t3 for a period.
  • the length of the period ie the respective time period t1 to t3, identifies the assigned command.
  • bus system 104 component (on bus system 103)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un élément capteur avec un capteur lumineux. Le capteur lumineux est conçu pour recevoir un signal de commande et le capteur lumineux est un capteur de luminosité pour un système d'éclairage. L'invention concerne en outre un émetteur destiné à communiquer avec l'élément capteur ainsi qu'un système d'éclairage avec élément capteur.
EP08875244A 2008-10-29 2008-10-29 Élément capteur avec un capteur lumineux, émetteur destiné à communiquer avec l'élément capteur ainsi que système d'éclairage avec élément capteur Ceased EP2342948A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/064660 WO2010048992A1 (fr) 2008-10-29 2008-10-29 Élément capteur avec un capteur lumineux, émetteur destiné à communiquer avec l'élément capteur ainsi que système d'éclairage avec élément capteur

Publications (1)

Publication Number Publication Date
EP2342948A1 true EP2342948A1 (fr) 2011-07-13

Family

ID=40800208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08875244A Ceased EP2342948A1 (fr) 2008-10-29 2008-10-29 Élément capteur avec un capteur lumineux, émetteur destiné à communiquer avec l'élément capteur ainsi que système d'éclairage avec élément capteur

Country Status (4)

Country Link
US (1) US20110210673A1 (fr)
EP (1) EP2342948A1 (fr)
CN (1) CN102217423B (fr)
WO (1) WO2010048992A1 (fr)

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DE102010025242A1 (de) * 2010-06-26 2011-12-29 Eaton Industries Gmbh Umgebungslichtsensor in modularem Aufbau
US9370077B2 (en) 2011-06-16 2016-06-14 Koninklijke Philips N.V. Robust daylight integration with the aid of coded light
DE102012218521B4 (de) 2012-10-11 2024-11-21 Zumtobel Lighting Gmbh Steuerungssystem für verteilt angeordnete Lampenbetriebsgeräte, sowie Verfahren zur Inbetriebnahme des Systems
CN109058949A (zh) * 2018-06-29 2018-12-21 中山市中大半导体照明技术研究有限公司 恒照度可控的dali光照度传感器
CN114145075A (zh) * 2019-08-06 2022-03-04 昕诺飞控股有限公司 用于控制照明系统的照明单元的控制器及其方法

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Also Published As

Publication number Publication date
CN102217423B (zh) 2015-09-16
US20110210673A1 (en) 2011-09-01
CN102217423A (zh) 2011-10-12
WO2010048992A1 (fr) 2010-05-06

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