EP4535926B1 - Steuergerät für beleuchtungselemente - Google Patents

Steuergerät für beleuchtungselemente

Info

Publication number
EP4535926B1
EP4535926B1 EP24187902.2A EP24187902A EP4535926B1 EP 4535926 B1 EP4535926 B1 EP 4535926B1 EP 24187902 A EP24187902 A EP 24187902A EP 4535926 B1 EP4535926 B1 EP 4535926B1
Authority
EP
European Patent Office
Prior art keywords
lighting element
lighting
power
time
turn
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.)
Active
Application number
EP24187902.2A
Other languages
English (en)
French (fr)
Other versions
EP4535926C0 (de
EP4535926A1 (de
Inventor
Gianpaolo Renon
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.)
Gestart Srl
Original Assignee
Gestart Srl
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 Gestart Srl filed Critical Gestart Srl
Publication of EP4535926A1 publication Critical patent/EP4535926A1/de
Application granted granted Critical
Publication of EP4535926C0 publication Critical patent/EP4535926C0/de
Publication of EP4535926B1 publication Critical patent/EP4535926B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H05B47/18—Controlling the light source by remote control via data-bus transmission
    • 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
    • H05B47/18—Controlling the light source by remote control via data-bus transmission
    • H05B47/183—Controlling the light source by remote control via data-bus transmission using digital addressable lighting interface [DALI] communication protocols
    • 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
    • H05B47/18—Controlling the light source by remote control via data-bus transmission
    • H05B47/184—Controlling the light source by remote control via data-bus transmission using digital multiplexed [DMX] communication protocols
    • 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
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission

Definitions

  • the present invention relates to the field of lighting systems, such as a system of light points distributed along the road network of an urban area.
  • lighting systems such as a system of light points distributed along the road network of an urban area.
  • These systems can include an extremely high number of streetlights, each equipped with one or more light points, and can be very extensive territorially.
  • each light point is a node in a mesh network that can be individually controlled remotely via radio waves or power line communication.
  • the light points have a reduced communication capacity, being essentially controlled in switching on and off by acting on the power supply through electrical panels based on preset information or remote control.
  • the light points can not only be turned on and off but also dimmed, that is, their power can be varied, for example, to reduce consumption during certain time periods.
  • These drivers have the ability to receive commands by exploiting the ON and OFF periods induced by a power supply circuit like a Morse code alphabet.
  • Virtual midnight is calculated by the driver by measuring the turn-on and turn-off times of the light point over the last three days. Since turning on and off typically coincides with sunset and sunrise, the midpoint between these two values is conventionally considered to coincide with midnight, which is assumed as the reference for setting each dimming profile. In practice, the driver modifies the power of the light point in time intervals calculated from this virtual reference.
  • the scope of the present invention is to provide a control device for a light point, particularly an LED, that can drive said light point with a high level of accuracy without resorting to the use of complex and expensive interconnected systems controllable remotely.
  • the invention achieves the goal with a control device for at least one lighting element comprising:
  • the control unit is configured to read from the memory element the scheduled turn-on time of the lighting element or to calculate this turn-on time based on geolocation information of the lighting element present in the memory unit so that with each turn-on of the lighting element, the control unit is able to synchronize the time provided by the counter element.
  • control unit is advantageously configured to perform the time synchronization operation if the continuous turn-on time of the lighting element exceeds a threshold, for example, two hours. If the maximum duration of an intervention remains below this threshold, no resynchronization is performed, and the device can operate correctly.
  • the control unit Since the counter element provides reliable time information in the short term, if one or more dimming profiles of the lighting element containing power levels to be set for predetermined time intervals are stored in the memory element, the control unit is able to set the power of the lighting element based on these levels at times stored within the memory element or derived from the information in the memory element.
  • control unit can be advantageously configured to receive commands from the input port according to a data communication protocol in which the information is encoded as sequences of on and off periods of the power signal, for example, based on the duration of the on period while keeping the off period duration constant.
  • the information related to the lighting element stored in the memory unit also includes an identifier to uniquely identify the lighting element. In this way, it is possible to address the lighting element or send commands to a plurality of lighting elements connected in parallel to the same power supply panel.
  • the commands can be advantageously structured to include the identifier that identifies the recipient lighting element, a prefix that identifies the type of command, and the data associated with that command.
  • the device can advantageously include a backup power element such as a buffer battery or a supercapacitor so that the counter element can at least maintain the date information even in the absence of power.
  • a backup power element such as a buffer battery or a supercapacitor so that the counter element can at least maintain the date information even in the absence of power.
  • brief power drops are irrelevant to the dimming operation as the time at which the ranges are set is resynchronized at each turn-on.
  • prolonged power outages can lead to a loss of date information from which the turn-on and turn-off times are derived based on the device's geolocation.
  • control commands of the lighting element can be sent in any way, even following proprietary protocols.
  • the output port is configured to send commands to the lighting element serially using a standard communication protocol for LED light sources such as DALI or DMX512.
  • the invention relates to an LED lighting element interfaced with a control device according to the invention.
  • the invention also relates to a lighting system comprising a plurality of lighting elements each interfaced with a control device according to the invention.
  • Each control device is connected to the same power control panel so that a single power signal turns on/off each lighting element, with communication between the control panel and the lighting elements occurring based on a data communication protocol in which the information is encoded as sequences of on and off periods of the power signal, each lighting element being individually addressable thanks to the identifier assigned to said lighting element during system installation and/or configuration.
  • the electrical power panel can advantageously include a communication element capable of communicating with a remote telecontrol unit for setting the on/off periods of the system's lighting elements. It is also possible to use the commands encoded as sequences of on and off periods of the power signal to configure the system's control devices at least partially, for example, to set one or more dimming profiles.
  • the invention also relates to a method for controlling an LED lighting element comprising the following steps: reading date information from a counter element; reading from a memory element the scheduled turn-on time of the lighting element on that date or reading the geographic coordinates of the lighting element from the memory element and deriving the turn-on time of the lighting element on that date based on those geographic coordinates; waiting for a preset period at the turn-on of the lighting element; setting the counter device time to the turn-on time plus the preset period; using the counter device to set the start time of one or more dimming profiles of the lighting element's power.
  • the start time of one or more dimming profiles can be read from the memory element or derived from the stored geographic coordinates.
  • a lighting system comprises a power control panel 1 connected to a plurality of light points 2 such as streetlights along an urban road.
  • the power control panel 1 can be a simple power distribution cabinet controlled by a dusk switch or a more complex device capable of communicating with a remote telecontrol unit, for example, via power line communication or a cellular radio network, such as 4G or 5G, a WiFi or Ethernet network using one or more communication cards generally indicated in the figure by reference 101.
  • a cellular radio network such as 4G or 5G, a WiFi or Ethernet network using one or more communication cards generally indicated in the figure by reference 101.
  • Each streetlight 2 includes a lighting element 3, such as an LED, and a driving driver 4 that serves as an interface between the lighting element 2 and the power control panel 1.
  • Communication between driver 4 and lighting element 3 can be of any type.
  • it uses a standard for driving LED lights such as DALI or DMX512.
  • the driving driver 4 includes:
  • microprocessor or microcontroller control unit 504 interfaced with the input/output ports 104, 204, the memory element 304, and the counter 404.
  • the memory element 304 can be external to the control unit 504 as in the case of microprocessor circuits or be onboard the same integrated unit forming the control unit 504 as in the case of microcontroller devices.
  • the same or another memory element 304 can be used to contain the control unit's 504 program instructions.
  • the memory element(s) can advantageously include Flash, EEPROM, or similar memories capable of retaining information, such as stored during system configuration, even in the absence of power.
  • This information allows the driver 4 to operate correctly during counter 404 synchronization as well as to set the dimming profiles of the lighting element 3.
  • the hours of light vary during the year and according to geographic coordinates.
  • a table indicating the lighting element's turn-on and turn-off times as well as the activation of dimming profiles for each day of the year.
  • the control unit will perform the necessary calculations to determine the turn-on and turn-off times and possible activation of dimming profiles.
  • driver and power control panel are based on the absence/presence of the power signal, it is advantageously possible to use on-off sequences of variable duration like a Morse code for communication with the driver 4 without resorting to complex and expensive wireless communication networks or power line communication.
  • identifier for example, as a message preamble, it is possible to address each driver, or groups of drivers, similarly to a more advanced communication system like TCP/IP.
  • commands are transmitted with a multiple power supply duration of 5 seconds.
  • the time detection is valid from 1.5 seconds before the multiple to 3.5 seconds after.
  • a 10-second turn-on pulse is sent as a terminal acknowledgment (ACK) to ensure the command is executed upon its sending.
  • ACK terminal acknowledgment
  • Sending the ACK command is optional and does not have the same effect for logic purposes, which is regulated by known lengths and predetermined sequences of turn-ons and turn-offs. In the absence of the terminal ACK turn-on, execution would occur at the next system turn-on, typically the next day, while with the ACK command, the new configuration is sent to the lamp immediately after completing the command reception.
  • the duration of the ON period encodes information. In the specific example shown above, this information is a number from 0 to 9 (digit).
  • any encoding can be used that exploits different durations of ON and OFF periods as well as different types of commands.
  • RTC counter
  • This component indicated by reference 604 in Fig. 3 , can be provided inside the device or externally to it.
  • the date information provided by the RTC counter 404 together with the geographic coordinates or pre-set activation/deactivation profiles based on these coordinates in the memory element 304, allow the control unit 504 to synchronize the counter and set the dimming profiles.
  • the control unit 504 is configured to read from the memory element 304 the scheduled turn-on time of the lighting element 3 or to calculate this turn-on time based on the coordinates of the lighting element 3 present in the memory element 304 so that with each turn-on of the lighting element 3, the control unit 504 can synchronize the time provided by the counter 404. For example, it is possible to provide that the control unit performs the time synchronization operation if the turn-on time of the lighting element exceeds a threshold, for example, two hours. This is to prevent operational errors in the case of turn-ons due to maintenance interventions. If the maximum duration of a maintenance intervention remains below this threshold, no resynchronization is performed, and the device can operate correctly.
  • a threshold for example, two hours. This is to prevent operational errors in the case of turn-ons due to maintenance interventions. If the maximum duration of a maintenance intervention remains below this threshold, no resynchronization is performed, and the device can operate correctly.
  • the control device reads or calculates from the information in memory what the actual turn-on time should be on that specific day, waits for a preset period, for example, two hours, and sets the counter to a time equal to the scheduled time plus two if the power continues to be active after this period.
  • Fig. 4 shows a variant of the control device according to the invention. It includes the control unit (LOGIC), the counter (RTC), the input port (PWR) for the +24 DC power signal, the output port (DALI), and the buffer battery or supercapacitor (PWR BACK UP).
  • the control unit LOGIC
  • the counter RTC
  • PWR input port
  • DALI output port
  • PWR BACK UP buffer battery or supercapacitor
  • SERIAL CFG 704 component which can also be present in the configurations shown in the previous figures.
  • This is a serial communication unit, such as RS232, RS432, or USB, which can be used to communicate with the control unit 504 during device configuration.
  • the device's non-volatile memory can be set to contain georeferencing information and/or turn-on/off and/or dimming tables.
  • the RTC counter can also be set to indicate the current time and date. Maintaining this information is guaranteed by the buffer battery or supercapacitor.
  • a DALI protocol interface commonly used to drive LED lighting elements is utilized.
  • Other protocols can also be used, even proprietary ones.
  • At least one additional sensor for activating or controlling the lights such as a motion sensor associated with the electronic board.

Landscapes

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

Claims (15)

  1. Steuervorrichtung (4) zum Steuern mindestens eines Beleuchtungselements (3), wobei die Steuervorrichtung umfasst:
    • einen Eingangsanschluss (104) für ein Leistungssignal des Beleuchtungselements (3) oder ein vom Leistungssignal des Beleuchtungselements (3) abgeleitetes Signal;
    • einen Ausgangsanschluss (204) zum Senden von Steuerbefehlen an das Beleuchtungselement (3), insbesondere zum Einstellen der Leistung des Beleuchtungselements (3);
    • ein Speicherelement (304), das Informationen über das zu steuernde Beleuchtungselement speichern kann;
    • ein Echtzeit-Zählerelement (404), das Datums- und Zeitinformationen liefern kann;
    • eine Steuereinheit (504), die mit dem Eingang (104), dem Ausgang (204), dem Speicherelement (304) und dem Zählerelement (404) schnittstellenverbunden ist,
    dadurch gekennzeichnet, dass die Steuereinheit (504) so konfiguriert ist, dass sie aus dem Speicherelement (304) die geplante Einschaltzeit des Beleuchtungselements (3) ausliest oder diese Einschaltzeit auf der Grundlage von im Speicherelement (304) gespeicherten Geolokalisierungsinformationen des Beleuchtungselements (3) berechnet, so dass bei jedem Einschalten des Beleuchtungselements (3), welches als Ergebnis des Empfangs eines Signals am Eingangsanschluss (104) bestimmt wird, die Steuereinheit (504) derart konfiguriert ist, dass sie die vom Zählerelement (404) gelieferte Zeit mit der geplanten Einschaltzeit synchronisiert.
  2. Vorrichtung nach Anspruch 1, wobei die Steuereinheit (504) zur Durchführung des Zeitsynchronisationsvorgangs konfiguriert ist, wenn die Einschaltzeit des Beleuchtungselements (3) einen Schwellenwert, beispielsweise zwei Stunden, überschreitet.
  3. Vorrichtung nach Anspruch 1 oder 2, wobei das Speicherelement (304) zur Speicherung von einem oder mehreren, für vorbestimmte Zeitintervalle einzustellende Leistungsniveaus enthaltenden Dimmprofilen des Beleuchtungselements (3) geeignet ist, wobei die Steuereinheit (504) dazu eingerichtet ist, die Leistung des Beleuchtungselements (3) auf der Grundlage dieser Niveaus zu Zeiten einzustellen, die im Speicherelement (304) gespeichert sind oder aus der Verarbeitung der Informationen im Speicherelement (304) abgeleitet werden.
  4. Vorrichtung nach einem oder mehreren der vorstehenden Ansprüche, wobei die in dem Speicherelement (304) gespeicherten oder zu speichernden, sich auf das Beleuchtungselement (3) beziehenden Informationen eine Kennzeichnung enthalten, die das zu steuernde Beleuchtungselement (3) eindeutig identifizieren kann.
  5. Vorrichtung gemäß einem oder mehreren der vorstehenden Ansprüche, wobei die Steuereinheit (504) dazu eingerichtet ist, Befehle vom Eingangsanschluss (104) gemäß einem Datenkommunikationsprotokoll zu empfangen, bei dem die Informationen als Sequenzen von EIN- und AUS-Perioden des Leistungssignals codiert sind.
  6. Vorrichtung nach Anspruch 5, wobei die Informationen auf der Grundlage der Dauer der EIN-Periode codiert werden, wobei die Dauer der AUS-Periode konstant ist.
  7. Vorrichtung nach Anspruch 5 oder 6, wobei die Befehle die Kennzeichnung, die das Empfänger-Beleuchtungselement (3) identifiziert, ein Präfix, das den Befehlstyp identifiziert, und die mit diesem Befehl assoziierten Daten enthalten.
  8. Vorrichtung gemäß einem oder mehreren der vorstehenden Ansprüche, wobei ein Backup-Leistungselement (604) für die Stromversorgung vorhanden ist, wie etwa eine Pufferbatterie oder ein Superkondensator, so dass das Zählerelement (404) die Datumsinformationen auch bei Stromausfall zumindest aufrechterhalten kann.
  9. Vorrichtung nach einem oder mehreren der vorstehenden Ansprüche, wobei ein Modul für die serielle Kommunikation (704) mit einer externen Konfigurationseinheit vorhanden ist, um während der Installation die Betriebsparameter des Beleuchtungselements (3), mit dem die Vorrichtung assoziiert ist oder assoziiert werden soll, einzustellen und/oder Informationen bezüglich des Beleuchtungselements (3) zu speichern.
  10. Vorrichtung nach einem oder mehreren der vorstehenden Ansprüche, wobei der Ausgangsanschluss (204) dazu eingerichtet ist, Befehle unter Verwendung des DALI- oder DMX512-Protokolls seriell an das Beleuchtungselement (3) zu senden.
  11. LED-Beleuchtungselement (3) mit regelbarer Leistung, dadurch gekennzeichnet, dass es eine Steuervorrichtung (4) nach einem oder mehreren der vorstehenden Ansprüche umfasst.
  12. Beleuchtungssystem mit einem oder mehreren Beleuchtungselementen (3) und einer oder mehreren Steuervorrichtungen (4) gemäß einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass jede Steuervorrichtung (4) mit demselben Leistungssteuerpaneel (1) verbunden ist, so dass mit einem einzigen Leistungssignal jedes Beleuchtungselement (3) ein- und ausgeschaltet wird, wobei die Kommunikation zwischen dem Leistungssteuerpaneel (1) und den Beleuchtungselementen (3) auf der Grundlage eines Datenkommunikationsprotokolls erfolgt, in dem die Informationen als Sequenzen von EIN- und AUS-Perioden des Leistungssignals codiert sind, wobei jedes Beleuchtungselement (3) dank einer Kennzeichnung, die dem Beleuchtungselement (3) während der Systeminstallation und/oder -konfiguration zugewiesen wurde, individuell adressierbar ist.
  13. System gemäß Anspruch 12, wobei das Leistungssteuerpanel (1) ein Kommunikationselement (101) umfasst oder mit diesem schnittstellenverbunden ist, das in der Lage ist, mit einer Remote-Fernsteuereinheit zu kommunizieren, um die EIN/AUS-Perioden einzustellen und/oder die Steuergeräte (4) zumindest teilweise zu konfigurieren.
  14. Verfahren zum Steuern eines LED-Beleuchtungselements gemäß Anspruch 11, dadurch gekennzeichnet, dass es die folgenden Schritte umfasst:
    • Auslesen von Datumsinformationen aus einem Zählerelement;
    • Auslesen der geplanten Einschaltzeit des Beleuchtungselements an diesem Datum aus einem Speicherelement oder Auslesen der geografischen Koordinaten des Beleuchtungselements aus dem Speicherelement und Ableiten der Einschaltzeit des Beleuchtungselements an diesem Datum auf der Grundlage dieser geografischen Koordinaten;
    • Abwarten einer voreingestellten Zeitspanne beim Einschalten des Beleuchtungselements;
    • Einstellen der Zeit der Zählervorrichtung auf die Einschaltzeit plus die voreingestellte Zeitspanne;
    • Verwenden der Zählervorrichtung zum Einstellen der Startzeit eines oder mehrerer Dimmprofile der Leistung des Beleuchtungselements.
  15. Verfahren nach Anspruch 14, wobei der Schritt des Lesens der Startzeit von einem oder mehreren Dimmprofilen aus dem Speicherelement oder des Lesens der geografischen Koordinaten des Beleuchtungselements aus dem Speicherelement und des Ableitens der Startzeit des Dimmprofils/der Dimmprofile aus diesen geografischen Koordinaten vorgesehen ist.
EP24187902.2A 2023-10-05 2024-07-11 Steuergerät für beleuchtungselemente Active EP4535926B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102023000020664A IT202300020664A1 (it) 2023-10-05 2023-10-05 Dispositivo di controllo di elementi di illuminazione

Publications (3)

Publication Number Publication Date
EP4535926A1 EP4535926A1 (de) 2025-04-09
EP4535926C0 EP4535926C0 (de) 2025-10-29
EP4535926B1 true EP4535926B1 (de) 2025-10-29

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Country Status (2)

Country Link
EP (1) EP4535926B1 (de)
IT (1) IT202300020664A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015184264A1 (en) * 2014-05-30 2015-12-03 Hubbell Incorporated Solid state lighting fixtures with integrated wireless control
GB2538796A (en) * 2015-05-29 2016-11-30 Novaccess S A Smart lighting
KR101694376B1 (ko) * 2015-08-05 2017-01-09 주식회사 다비전 Gps를 이용한 점멸 등화장치 및 그 시간동기 방법

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Publication number Publication date
EP4535926C0 (de) 2025-10-29
EP4535926A1 (de) 2025-04-09
IT202300020664A1 (it) 2025-04-05

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