WO2017182685A1 - Source d'alimentation intelligente pour systèmes d'éclairage à del avec capteurs de lumière et présence intégrés et communication par lumière visible et par ligne de puissance - Google Patents

Source d'alimentation intelligente pour systèmes d'éclairage à del avec capteurs de lumière et présence intégrés et communication par lumière visible et par ligne de puissance Download PDF

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Publication number
WO2017182685A1
WO2017182685A1 PCT/ES2017/070224 ES2017070224W WO2017182685A1 WO 2017182685 A1 WO2017182685 A1 WO 2017182685A1 ES 2017070224 W ES2017070224 W ES 2017070224W WO 2017182685 A1 WO2017182685 A1 WO 2017182685A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
power supply
lighting systems
communication
microprocessor
Prior art date
Application number
PCT/ES2017/070224
Other languages
English (en)
Spanish (es)
Inventor
Agustin Montoro Iradier
Jose Vicente MOLERA PICAZO
David DOMINGUEZ SANCHEZ
Original Assignee
Airis Technology Solutions, S.L.
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 Airis Technology Solutions, S.L. filed Critical Airis Technology Solutions, S.L.
Publication of WO2017182685A1 publication Critical patent/WO2017182685A1/fr

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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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/12—Controlling the intensity of the light using optical feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/116—Visible light communication
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • 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

Definitions

  • the invention refers to an intelligent power source for LED lighting systems with integrated light and presence sensors and communication by visible light and by power line, contributing to the function to which it is intended, advantages and characteristics, which will be described in detail later, which represent a remarkable novelty in the current state of the art. More specifically, the object of the invention focuses on a power supply for LED devices that, among other features, is distinguished by incorporating, as an integral part of the source itself, although externally locatable to choose the optimal location, a motion sensor or presence and a luminosity sensor, allowing maximum improvement of the energy efficiency of the lighting systems using said LED devices and adapting them in a very flexible way to the needs of each user.
  • the power supply for lighting with LED diodes also incorporates a microprocessor that controls the different elements it comprises in order to save energy in the lighting installations as intelligently and economically as possible.
  • a microprocessor that controls the different elements it comprises in order to save energy in the lighting installations as intelligently and economically as possible.
  • it allows its local or remote configuration by means of communication through visible light (by means of the flash of a mobile phone or similar device) and through the power line itself by several procedures (micro-cuts of electric line and pulses). on / off) as well as send information to other devices from the power source through micro-consumption.
  • the field of application of the present invention is part of the industry sector dedicated to the manufacture of devices and devices for electrical lighting installations, focusing particularly on the field of lighting systems with LED diodes and, at the same time, the control systems and automatic ignition by sensors
  • the invention therefore, has the purpose of allowing all of them to be integrated at the same time and economically in a single system and, in addition, allow each of the power sources to be individually configured by means of visible light frames as well as maintaining a constant light level in the area illuminated by the LEO device, compensating the variations of intensity of natural light, solving for it the technical problems posed by said integration, since it is not limited to the sum and connection of the set of said elements.
  • the intelligent power supply for LED lighting systems with integrated beam and presence sensor and visible light and power line communication that the invention proposes is configured as a novelty within its field of application, since, in accordance with the of its impiementation and exhaustively, the aforementioned objectives are satisfactorily achieved, the characterizing details making it possible and which distinguish it conveniently included in the final claims that accompany the present description.
  • the power supply proposed by the invention comprises the following elements: - A light sensor, connected to a microprocessor with three functions:
  • flash programming a commonly used device, preferably a smart cell phone or “smartphone” or electronic tablet, (hereinafter mobile device or simply mobile), to receive instructions and configuration of all features from the source (henceforth we will call this function "flash programming"), which is an innovation, taking advantage of the light sensor as a communication system in visible light to be able to adapt it to modern systems such as mobile phones whose flash emits light visible.
  • a motion sensor usually of microwave and / or body heat detection, with the function of detecting the presence of people, cars, etc. and cause lighting to turn on or timed shutdown in case of absence, progressively or instantaneously.
  • This motion sensor will also be connected to the microprocessor. In advance we will call this function "motion sensor”.
  • a small focal, or secondary, power supply that allows the microprocessor to remain active when the main source is turned off to be able to receive external commands (for example) or internal ones (for example, timed ignition), which allows total shutdown the LEDs and, in parallel, the sensors maintain their operation with an independent switched source, which is an essential innovation, given that it is difficult to keep the source on so that it works, by means of the inclusion of said crazy power source ) or secondary , whose operation is explained in later sections.
  • This inclusion supposes a novelty, since it allows to reach very low levels of residual power in off (of the order of 0.45W to 230Vac) and for this it has been necessary to develop the local source in question.
  • a network micro-cut detector connected to the microprocessor, to be able to receive by electric line, through a modulator-demodulator device (hereinafter modem), instructions and configuration.
  • modem modulator-demodulator device
  • data reception This communication supposes an innovation for the way of transmitting the information and for the Ability that it has, since a carrier is not used in the cable, as it happens in other systems, but the information is encoded in another way, causing small cuts in the food that the source recognizes.
  • a detector of network macro-cuts to be able to perform the function of "programming by impulses" consisting in turning off and on during certain pre-established times the source and coding a certain configuration.
  • the lighting and movement sensor which are preferably housed in the same device, are external to the housing that houses the other components of the source, to be able to choose their location for optimal operation: the luminaire will be, for example, in a ceiling, where the source would also be located, connected to the luminaire, and the sensor device, connected so that it has the best access to what is below the ceiling, which is the area that has to detect, the usual, will be integrate it into the luminaire itself so that it detects through the glass of it.
  • the presence and brightness sensor that we would put in the luminaries makes that, if there is nobody nearby, lower the amount of light so that it can be progressive and rise in the same way, this does not appreciate the client / personai and produces a saving considerable energy
  • the described intelligent power supply for LED lighting systems with integrated light and presence sensors and communication by visible light and power line represents, therefore, an innovation of structural and constitutive characteristics unknown until now, reasons that together with its practical use , They provide sufficient grounds to obtain the privilege of exclusivity that is requested.
  • Figure number 1 Shows, in a diagram, the general scheme of the intelligent power supply for LED lighting systems with integrated light and presence sensors and communication by visible light and by power line, object of the invention, appreciating the main components it comprises.
  • Figure 2 Shows the schematic of a preferred embodiment of the variable gain amplifier - Figure number 3.
  • Figures 4 and 5. They show two Bode diagrams of the response of the low pass filter and the phase thereof, respectively.
  • Figure number 6 shows the diagram of a preferred embodiment of the local power supply.
  • Figure number 7-A.- Shows the scheme of a preferred embodiment of the micro-cut detector. And figure 7-B shows the wave diagram that is generated.
  • Figure number 8-A and 8-B show, respectively, the circuit diagram of a preferred embodiment of the micro consumption generator and the wave diagram it generates.
  • the power supply (1) in question comprises, essentially, a light sensor (2) and a motion sensor (9) connected to a microprocessor (4) to which, a In turn, a power step (8) with constant current output is connected to the LEDs of the lighting system.
  • the signal of the light sensor (2) usually a photodiode or a phototransistor. enters a variable gain amplifier (3), gain that can be changed by the microprocessor (4) to adapt to different environments.
  • This amplified signal (5) allows the "flash programming" function to be detected and decoded by a train of visible light pulses from the flash of the camera of a mobile or tablet.
  • This same amplified signal (5) also serves to detect if there is natural light at the time of ignition and prevent it until the light falls below a certain level configured in the microprocessor ⁇ 4) of the source, thus performing the function of "light on / off.
  • the amplified signal (5) is brought to a low-pass filter (6) of very low frequency that allows, eliminating in a very effective manner all kinds of electrical noise, measuring in the microprocessor (4) the ambient light level and reacting on the step of power (8) of LEDs to regulate the intensity of them compensating the contribution of natural light. In this way it makes the function of "constant light".
  • the motion sensor (9) delivers a signal that the microprocessor (4) analyzes, and decides if there is passage of people, cars or other type of movement, allowing to perform the function of "motion sensor” that causes the Lighting of the lighting or time shutdown in case of absence, progressively or instantaneously.
  • the power supply (1) also includes a local power supply (10) that allows the microprocessor (4) to remain active in all situations in which we turn off the power step (8) to achieve maximum energy savings , otherwise we would have to turn off only partially the power step (8) to continue delivering power to the microprocessor (4) and other auxiliary devices.
  • the communications from the source (1) are essential to carry out energy saving plans that are very precise and, therefore, highly effective, such as adapting the lighting to changing schedules depending on the season of the year.
  • Special circumstances of a locality if it is of industrial type or mainly of residence or second residence for weekends or holidays, etc.) or the orography of the city (certain streets receive more or less light at certain times, etc.) or to the schedule of an office, etc.
  • the source (1) also marks certain network cycles through a micro-consumption generator (13) that incorporates, by generating an alternation at low frequency (less than 3 Khz) between current consumption and absence of it during a network half cycle, which is easily detectable in the device external (28) or remote modem through the corresponding digital filters. In this way, the "data transmission" function is performed.
  • a micro-consumption generator (13) that incorporates, by generating an alternation at low frequency (less than 3 Khz) between current consumption and absence of it during a network half cycle, which is easily detectable in the device external (28) or remote modem through the corresponding digital filters. In this way, the "data transmission" function is performed.
  • the variable gain amplifier (3) (see Figure 2) is preferably made by a first operational amplifier (15) with several resistors connected to outputs of the microprocessor (4) that change the effective value thereof by grounding them or in high impedance state. In this way the input of the photodiode signal or light sensor (2) is obtained amplified at the output (referenced as an amplified signal (5)) with an adjustable gain.
  • the low pass filter (6) (see Figure 3) is preferably made by a second operational amplifier (15a) which is designed for a very low cutoff frequency, so that only slow variations of iumination influence the function of constant light. The output thereof (referenced here as 6a) is directed to an input for analog measurements of the microprocessor (4).
  • the gain is like this:
  • FIGS 4 and 5 show the Bode diagram of the response magnitude of the filter and the phase, respectively.
  • the local power supply (10) is preferably carried out as shown in the diagram in figure 6, operating as follows:
  • the resistor R4 polarizes and causes the transistor Q2 to be led from the rectifier bridge output of the source (10). Through the resistance R3.
  • Q2 polarizes transistor Q1, which also starts to drive.
  • the current of Q1 manages to raise the voltage of the resistance R1 to the value of the zener diode DZ1 minus the base emitter of Q1 t the zener diode DZ1 starts to conduct and steals the current of the base of Q1 the which starts to drive less.
  • the micro-cut detector (12 preferably takes the voltage of the network input (11) through the resistive divider formed by the resistors R1 and R2 which gives a half wave voltage (16) which we apply to a comparator (17) that measures ⁇ unlike a constant voltage reference (18) and so we can distinguish between a micro cut (19) and a normal half wave signal (16) ).
  • the output of the comparator (17) is applied to the microprocessor (4) which checks if the voltage is below the reference at moments synchronized with the network close to the zero crossing of the network wave.
  • the data is coded counting the number of normal half wave cycles (16) between micro cuts (19).
  • the micro consumption generator (13) will be made by the circuit shown in Figure 8-A in which a MOSFET transistor M1 marks a half-wave cycle with a low frequency carrier that produces a current consumption pattern (20) in the net. by the activation signal (20a) of the gate of the transistor M1 represented in the scheme of the Figure 8-B, easily identifiable at destination and that does not decrease in intensity with distance appreciably, being able to distinguish at destination (in the modem) between normal (21) and marked (22) cycles by digital filters. As before, the information is coded by the number of normal cycles between marked cycles.
  • the preferred microprocessor (4) for the source (1) is low cost and therefore does not have the computing power necessary for digital filtering, but for the detection of micro cuts, while the modem can have a powerful microprocessor.
  • the macro cut detector (14) resides simply in the software of the microprocessor (4) that counts the on-time between cuts and receives the same information as the micro-cut detector (12) or that the flash pulses coding in the ignition times between cuts the information to be transmitted.
  • Figure 9 shows the frames of transmission or reception of data. They are similar among the four communication systems, that is, by macro cuts, by micro cuts by micro consumption and by flash. There are marks (23) and spaces (24) between the marks, the length of the spaces being what transmits the information.
  • the marks (23) can be a network half-cycle where we have seen a micro-cut or other network half-cycle where the modem has seen a low-frequency carrier from the micro-consumption generator or a total network cutoff for reception by macro cuts or a space without light between two flash of the camera of a móvii.
  • We have a preamble (25) with two spaces of three units can be three cycles of network for micro cuts or microwaves, or three seconds for macro cuts or 3 times 30ms to 50Hz for flash pulses of duration three times the half cycle of network, for synchronization reasons).
  • an indicator of the data group (26) to be transmitted starting with five units for the options of the type "Yes / No", seven units for the maximum current of the lamp, etc.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Communication System (AREA)

Abstract

L'invention concerne une source d'alimentation intelligente pour systèmes d'éclairage à DEL avec capteurs de lumière et présence intégrés et communication par lumière visible et par ligne de puissance qui, en plus du passage de puissance (8), comprend un capteur de lumière (2) et un capteur de mouvement (9) reliés extérieurement, et intérieurement, un microprocesseur (4), un amplificateur à gain variable (3), dans lequel entre le signal du capteur de lumière (2) qui contrôle le microprocesseur (4), un filtre passe-bas (6) à très basse fréquence, auquel parvient le signal amplifié (5) et élimine tout bruit électrique, et, pour programmer et configurer la source (1), un détecteur de micro-coupures (12) et un générateur de micro-consommations (13) pour recevoir des données, et un détecteur de macro-coupures (14) pour la programmation. En outre, l'invention comprend une source d'alimentation locale (10) qui maintient actif le microprocesseur (4) dans toutes les situations dans lesquelles s'interrompt le passage de puissance (8).
PCT/ES2017/070224 2016-04-18 2017-04-10 Source d'alimentation intelligente pour systèmes d'éclairage à del avec capteurs de lumière et présence intégrés et communication par lumière visible et par ligne de puissance WO2017182685A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP201630495 2016-04-18
ES201630495A ES2643137B1 (es) 2016-04-18 2016-04-18 Fuente de alimentación inteligente para sistemas de iluminación led con sensores de luz y presencia integrados y comunicación por luz visible y por linea de potencia.

Publications (1)

Publication Number Publication Date
WO2017182685A1 true WO2017182685A1 (fr) 2017-10-26

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PCT/ES2017/070224 WO2017182685A1 (fr) 2016-04-18 2017-04-10 Source d'alimentation intelligente pour systèmes d'éclairage à del avec capteurs de lumière et présence intégrés et communication par lumière visible et par ligne de puissance

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ES (1) ES2643137B1 (fr)
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150102733A1 (en) * 2010-09-30 2015-04-16 Ketra, Inc. Lighting Control System
EP2874472A1 (fr) * 2013-11-14 2015-05-20 Renesas Electronics Corporation Lampe à DEL, système de réseau de courant porteur, procédé d'écriture d'informations de localisation, projecteur, procédé de traitement de données et système d'évitement de collision

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150102733A1 (en) * 2010-09-30 2015-04-16 Ketra, Inc. Lighting Control System
EP2874472A1 (fr) * 2013-11-14 2015-05-20 Renesas Electronics Corporation Lampe à DEL, système de réseau de courant porteur, procédé d'écriture d'informations de localisation, projecteur, procédé de traitement de données et système d'évitement de collision

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Programmable Gain Amplifier (PGA)", ECIRCUIT CENTRE, 20 April 2006 (2006-04-20), XP055433558, Retrieved from the Internet <URL:https://web.archive.org/web/20060420170459> [retrieved on 20170706] *
ANONYMOUS: "Touch DIM - energy savings for intelligent individual fixtures", OSRAM, 12 November 2013 (2013-11-12), XP055433552, Retrieved from the Internet <URL:https://web.archive.org/web/20131112121007/https://www.osram.com/osram_com/news-and-knowledge/light-management-systems/product-knowledge/touch-dim/index.jsp> [retrieved on 20170711] *
FILTER DESIGN GUIDE, 1 February 2013 (2013-02-01), Retrieved from the Internet <URL:https://web.archive.org/web/20130201133449/http://alignment.hep.brandeis.edu:80/Lab/Filter/Filter.html> [retrieved on 20170706] *

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Publication number Publication date
ES2643137B1 (es) 2018-08-29
ES2643137A1 (es) 2017-11-21

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