EP3721684A1 - Système d'éclairage - Google Patents

Système d'éclairage

Info

Publication number
EP3721684A1
EP3721684A1 EP18871823.3A EP18871823A EP3721684A1 EP 3721684 A1 EP3721684 A1 EP 3721684A1 EP 18871823 A EP18871823 A EP 18871823A EP 3721684 A1 EP3721684 A1 EP 3721684A1
Authority
EP
European Patent Office
Prior art keywords
power
control device
communication
communication signal
lighting unit
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.)
Granted
Application number
EP18871823.3A
Other languages
German (de)
English (en)
Other versions
EP3721684B1 (fr
Inventor
Rutger Emiel VAN DIERENDONCK
Marcel STEINE
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.)
4bever Beheer BV
Original Assignee
4bever Beheer BV
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 4bever Beheer BV filed Critical 4bever Beheer BV
Publication of EP3721684A1 publication Critical patent/EP3721684A1/fr
Application granted granted Critical
Publication of EP3721684B1 publication Critical patent/EP3721684B1/fr
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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency lighting devices

Definitions

  • the present invention relates in general to a lighting system comprising a plurality of lighting units, and provided with power backup facilities.
  • Figure 1 is a block diagram schematically showing a lighting system 1 comprising a plurality of lighting units 10 receiving power from a power line 2, 3.
  • the power line 2, 3 typically carries mains powers which, in any case in Europe, can be characterized as 230 VAC @ 50 Hz.
  • power backup facilities have been developed, taking over the power supply in case of failure of the mains power supply.
  • power backup facilities may include an engine-driven generator or a unit based on batteries.
  • the capacity of such backup facilities may vary, and the duration of the backup power depends on the one hand on this capacity and on the other hand on the power consumption by the connected power consumers.
  • the power backup facilities may be associated with individual lighting units, may be associated with groups of lighting units, and may in fact even be common to an entire building.
  • Figure 1 illustrates a possibility of a power backup unit 4 associated with the power line 2, 3.
  • the original power line is indicated by reference numeral 2
  • the power line behind the power backup unit 4 is indicated by reference numeral 3.
  • the mains power fails in power line 2
  • the mains power will remain to be available in power line 3 for some time, provided by backup unit 4.
  • This power line 3 will be indicated as buffered power line.
  • Figure 1 also shows outlet sockets 6, 7 of the power lines 2, 3, respectively.
  • the figure shows that a lighting unit 10 can be connected to an outlet socket 7 of the buffered power line 3.
  • the figure also shows that a lighting unit 10 can be connected to the non-buffered power line 2 via an individual backup unit 5 that is connected to an outlet socket 6 of the non-buffered power line 2.
  • Multiple lighting units 10 may be coupled to one single power backup unit 5, but this is not shown. In each case, the lighting unit 10 receives buffered power. It is possible that each lighting unit 10 has its own dedicated power backup unit 5.
  • the power backup unit 5 may be a separate unit, having its output coupled to the power input 11 of the lighting unit 10. It Is also possible that each lighting unit 10 has its own integrated power backup unit.
  • Figure 1 only shows two lighting units 10, but is to be understood that the lighting system 1 may include a vast plurality of lighting units.
  • the system enters a backup condition, in which power is continued to be supplied to the individual lighting units 10 either by a common power backup unit 4 or by individual power backup units 5, or both.
  • a backup condition in which power is continued to be supplied to the individual lighting units 10 either by a common power backup unit 4 or by individual power backup units 5, or both.
  • a power backup unit 4, 5 has power stored in its batteries up to a certain level, and power
  • power backup units are provided with sound alarms, causing users on the one hand to realize that a power failure has occurred and on the other hand to take steps for repair. But repair may take longer than expected, in any case longer than the time period bridged by the power capacity of the power backup units. In any case, it is desirable to extend the operating time of the power backup units as much as possible.
  • An object of the present invention is to provide a solution to this problem.
  • a first aspect of the present invention involves reducing the power
  • Another aspect of the present invention involves detecting the occurrence of power failure.
  • Another aspect of the present invention involves a prediction of an
  • Figure 1 is a block diagram schematically showing a lighting system comprising a plurality of lighting units receiving power from a power line.
  • the lighting system 1 is provided with a communication system 30 In mesh topology.
  • each lighting unit 10 comprises a communication device, schematically illustrated at reference numeral 13, for communicating with other lighting units of the system.
  • the communication may be wired, via the power line or via separate communication lines, but the communication preferably is wireless.
  • Each lighting unit 10 forms a node in the communication network. It is characteristic of a mesh topology that each node can communicate to each other node and can receive messages from each other node.
  • Such communication systems are known per se, and mesh topology in general is known per se, therefore an elaborate explanation thereof will be omitted here.
  • the individual nodes may have individual addresses, so that a specific communication from one node may be directed exclusively to a selected one of the other nodes, but in the context of the present invention communications do not discriminate between receivers and a communication is received by all other nodes, as far as allowed by external circumstances.
  • Each lighting unit 10 comprises a control device 20, for instance implemented as a microcontroller.
  • the controller 20 has an input receiving messages from communication receiver 13, and has an output coupled to the one or more light sources 12 of the lighting unit 10 to control the light output thereof. According to the invention, if the controller receives a signal indicating a power failure, it will control the light sources 12 to reduce the output level thereof. The output level may for instance be reduced to 10% of the nominal output level.
  • FIG. 1 also shows a non-buffered lighting unit 110 connected directly to a non- buffered power line 2, i.e. without an intermediary power back up unit.
  • the controller 20 of the non-buffered lighting unit 110 is adapted to, via the communication system 30, at intervals which may be regular or irregular, send a predefined okay signal. This signal will be received by the buffered lighting units 10, signalling to the controllers 20 of those lighting units 10 that the power supply is still okay. As soon as power fails, the non-buffered lighting unit 110 will stop operating due to lack of supply, and hence it can no longer generate the okay signal.
  • the buffered lighting units 10 will note the omission of okay signals received, and their respective control devices 20 will draw the conclusion that power has failed and will switch over to backup mode. Depending on lay out and implementation of the lighting system, it may happen that communication signals are blocked and/or disturbed, so that signals are not received or are not understood. If this happens with the okay signal from the non- buffered power unit 110, which will also be indicated as sensor unit, it may happen that lights are reduced without proper cause. It is also possible that the non-buffered power unit 110 does not send any signals due to failure of the non-buffered power unit 110. In order to reduce the risk of this to happen, the lighting system 1 preferably comprises two or more sensor units 110. Even if one or more sensor units fail, as long as there is still at least one sensor unit properly functioning to generate the okay signal, proper functioning of the lighting system as a whole Is ensured.
  • each control device 20 has a repeat facility, meaning that this control device will also send the okay signal after having received an okay signal.
  • each control device is preferably adapted to send an okay message at a maximum of once per predetermined time interval, which time interval may suitably be chosen between one and five minutes, for instance.
  • the sensor unit 110 is also suitably adapted to send its okay message only once per predetermined time interval.
  • the delayed response by the individual control devices may be implemented in the form of a timer.
  • a control device will have an associated timer, timing a time period of for instance ten minutes, which timer will be reset by the received okay signal, which may for instance be received every two minutes.
  • the sensor units 110 are adapted to monitor the input voltage, and to send a warning signal as soon as it Is detected that the input voltage drops below a predetermined threshold. This serves to predict a possible power failure.
  • the control devices 20 may decide to lower the light output ievel immediately, to have a quick and even pro-active response to power failures.
  • the voltage drop may only be temporary, or the warning signal may have been sent erroneously, for instance due to failure of a sensor unit 110.
  • the control devices 20 may be adapted to wait until the next expected moment for an okay signal. Then, if no okay signal is received at the expected moment, the control devices 20 may conclude from the combination of these two facts, i.e. the warning signal followed by the lacking okay signal, that the chances are high that power has failed indeed, and switch over to reduced power consumption. If on the other hand, after having received such a warning signal, the next okay signal is received, the control devices know that they may ignore the warning signal because apparently the power has not failed.
  • foe control devices 20 may be adapted to only switch over to reduced power consumption after having received said warning message from at least two or more, or even all, sensor units within a certain timeframe. If an okay signal is received, the control devices 20 may conclude that the power has been restored.
  • the sensor units 110 and the normal units 10 are implemented differently, specially adapted to their specific tasks. However, it Is preferred that the sensor units 110 and the normal units 10 are implemented identically, and are provided with a user-interface such as a simple switch for indicating whether the unit should operate as a normal unit or as a sensor unit. While normal units are allowed to repeat a communication signal, they are not permitted to initiate a communication signal, because they would continue doing that even after power failure for foe simple reason that their power is buffered.
  • a lighting system comprises buffered and non-buffered power lines. At least one lighting unit 110 receives power from a non-buffered power line, and is adapted to transmit a communication signal either continuously or repetitively. At least one lighting unit 10 receives power from a buffered power line, and is adapted to monitor receipt of foe communication signal and to reduce output power if it does not receive the communication signal.
  • the present invention is not limited to the exemplary embodiments discussed above, but that several variations and modifications are possible within the protective scope of the invention as defined in the appending claims. For instance, two or more functions may be performed by one single entity, unit or processor. Even if certain features are recited in different dependent claims, the present invention also relates to an embodiment comprising these features in common. Even if certain features have been described in
  • the present invention also relates to an embodiment in which one or more of these features are omitted.
  • Features which have not been explicitly described as being essential may also be omitted. Any reference signs in a claim should not be construed as limiting the scope of that claim.

Landscapes

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

Abstract

Un système d'éclairage (1) comprend des lignes électriques à mémoire tampon (3, 3s) et sans mémoire tampon (2). Au moins une unité d'éclairage (1 10) reçoit de l'énergie provenant d'une ligne électrique sans mémoire tampon, et est conçue pour transmettre un signal de communication soit en continu soit de manière répétitive. Au moins une unité d'éclairage (10) reçoit de l'énergie provenant d'une ligne électrique à mémoire tampon, et est conçue pour surveiller la réception du signal de communication et pour réduire la sortie de lumière s'il ne reçoit pas le signal de communication.
EP18871823.3A 2017-12-05 2018-12-05 Système d'éclairage Active EP3721684B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1042668A NL1042668B1 (en) 2017-12-05 2017-12-05 Lighting system
PCT/NL2018/000023 WO2019135673A1 (fr) 2017-12-05 2018-12-05 Système d'éclairage

Publications (2)

Publication Number Publication Date
EP3721684A1 true EP3721684A1 (fr) 2020-10-14
EP3721684B1 EP3721684B1 (fr) 2022-06-29

Family

ID=66334519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18871823.3A Active EP3721684B1 (fr) 2017-12-05 2018-12-05 Système d'éclairage

Country Status (3)

Country Link
EP (1) EP3721684B1 (fr)
NL (1) NL1042668B1 (fr)
WO (1) WO2019135673A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116528437B (zh) * 2023-07-03 2023-09-22 珠海数字动力科技股份有限公司 一种室内停车场智能照明组网联动控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214352A (en) * 1991-06-07 1993-05-25 Computer Power Inc. Light dimming system for emergency operation
TWM399989U (en) * 2010-03-26 2011-03-11 Digi Triumph Technology Inc UPS detection device
DE102010003799A1 (de) * 2010-04-09 2011-12-15 Tridonic Ag Modulares LED-Beleuchtungssystem mit Notlichtfunktion
NL2012930B1 (en) * 2014-06-02 2016-06-09 Eldolab Holding Bv Light unit driver system.
EP3338403B1 (fr) * 2015-08-20 2018-12-05 Philips Lighting Holding B.V. Dispositif d'équipement de source d'alimentation de puissance pour un système d'éclairage ethernet

Also Published As

Publication number Publication date
NL1042668B1 (en) 2019-06-13
EP3721684B1 (fr) 2022-06-29
WO2019135673A1 (fr) 2019-07-11

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