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WO2018191791A1 - Système d'éclairage d'urgence - Google Patents

Système d'éclairage d'urgence Download PDF

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Publication number
WO2018191791A1
WO2018191791A1 PCT/AU2018/050363 AU2018050363W WO2018191791A1 WO 2018191791 A1 WO2018191791 A1 WO 2018191791A1 AU 2018050363 W AU2018050363 W AU 2018050363W WO 2018191791 A1 WO2018191791 A1 WO 2018191791A1
Authority
WO
WIPO (PCT)
Prior art keywords
emergency
control node
node
emergency lighting
results
Prior art date
Application number
PCT/AU2018/050363
Other languages
English (en)
Inventor
Alain Sabourdy
Original Assignee
Legrand Australia Pty Ltd
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 AU2017901449A external-priority patent/AU2017901449A0/en
Application filed by Legrand Australia Pty Ltd filed Critical Legrand Australia Pty Ltd
Priority to NZ758244A priority Critical patent/NZ758447B2/en
Priority to SG11201909662R priority patent/SG11201909662RA/en
Priority to AU2018255494A priority patent/AU2018255494B2/en
Publication of WO2018191791A1 publication Critical patent/WO2018191791A1/fr
Priority to ZA2019/07579A priority patent/ZA201907579B/en

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
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
    • H05B47/22—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel with communication between the lamps and a central unit
    • 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
    • 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 to an emergency lighting system and, in particular, to a test system for an emergency lighting system operated over a LoRa wireless communication network.
  • Emergency lighting systems including multiple emergency luminaires are installed into buildings and activated in the event of a power outage or other emergency incident .
  • Such emergency lighting systems are typically installed in both commercial and residential premises.
  • Emergency luminaires are powered separately from the main lighting systems of a building.
  • emergency lumiunaires are backed up by batteries. The performance of emergency luminaires is tested periodically to check that the lights are in a suitable working condition in the event that an emergency incident occurs.
  • Figure 1 shows an
  • luminaires 120a-c, 121a 122a-f, etc. This is referred to as a branch network. Communications from area controller 110 are transmitted to emergency luminaires within the emergency lighting system via defined communication pathways .
  • Emergency luminaires 120 121 122 are referred to as primary luminaires in the example of figure 1.
  • Primary luminaires communicate directly with area controller 110 by receiving radio signals from area controller 110 and transmitting radio signals to area controller 110.
  • Each of primary emergency luminaires 120 121 122 has a branch of further emergency luminaires extending from it .
  • emergency luminaire 120 has emergency luminaires 120a 120b 120c on its branch.
  • the further emergency luminaires on the branch are referred to as secondary luminaires.
  • the secondary luminaires communicate with area controller via the relevant primary luminaire.
  • Secondary luminaires do not communicate directly with area controller 110. Any instruction signals from area controller are received by primary luminaires 120 121 122 and forwarded to secondary luminaires on the branch.
  • communication pathways are referred to as communication pathways .
  • the communication pathways for the emergency luminaires in the network are now described.
  • communication signals from area controller 110 are received at primary luminaire 120, transmitted from primary luminaire 120 to secondary luminaire 120a, and further transmitted from secondary luminaire 120a to secondary luminaires 120b 120c.
  • communication signals from area controller 121 are received at primary luminaire 121, transmitted from primary luminaire 121 to secondary luminaire 121a.
  • communication signals from area controller 110 are received at primary luminaire 122, transmitted from primary luminaire 122 to secondary luminaires 122a 122b 122c, and further transmitted from secondary luminaire 120b to secondary luminaire 122d, and further transmitted from secondary luminaire 122d to secondary luminaires 122e and 122f.
  • controller 110 are transmitted in the reverse direction along the same communication pathway.
  • signals from secondary luminaire 120c are transmitted to secondary luminaire 120a, and further transmitted from secondary luminaire 120a to primary luminaire 120, and then transmitted from primary luminaire 120 to area controller 110.
  • the areas controller is typically connected to the primary emergency luminaires via a short range radio communication network, although other network connections, for example wired networks may be used.
  • the connections between primary emergency luminaires and secondary luminaires and between secondary luminaires may be across a fixed line network or a short range radio network.
  • an emergency luminaire test initiation signal is transmitted from area controller 110 to primary emergency luminaires 120 121
  • each of the primary emergency luminaires 120 121 122 transmits the test initiation signal on to secondary emergency
  • Each of the primary and secondary emergency luminaires executes an emergency test procedure on receipt of the test initiation signal.
  • Test results are transmitted from each emergency luminaire along the communication pathway of the branches to emergency luminaires 120 121 122.
  • Primary emergency luminaires 120 121 122 then transmit the test results back to area controller 110 across the radio communication network.
  • the distributed emergency luminaires are connected in a branch network.
  • Branch networks are short range radio networks. Such networks have limited range and typically require the area controller to be in close proximity to the emergency luminaires . In large buildings this may require multiple area controllers and multiple branch networks. The area controllers are generally connected together via physical cabling. The number of emergency luminaires associated with each branch network is also limited. Such prior art systems may also encounter issues with implementation in particular with the radio link between emergency luminaires within the branch network. Fault diagnosis and identification of the location of faults in the system can also be challenging since communication failure between the area controller and the emergency luminaires could occur at a number of points in the system. If a single emergency luminaire in a branch were to fail then all downstream emergency luminaires would also lose communication. For example, in figure 1 if emergency luminaire 122b were to fail then emergency luminaires 122d to 122f would all lose communication to primary emergency luminaire 122 and, hence, area
  • the invention provides an emergency lighting system comprising a control node and plurality of emergency lights, wherein each of the plurality of emergency lights is directly connected to the control node across a wireless communications network, the control node being configured to transmit test initiation signals directly to each emergency light.
  • the wireless communications network is a LoRa network .
  • the invention provides an emergency luminaire for use in an emergency lighting system the emergency luminaire being configured to receive a test signal across a wireless communications network directly from a control node and to activate a test procedure at the emergency luminaire on receiving the test signal.
  • a control node for an emergency lighting system comprising a control node and a plurality of emergency lights:
  • control node comprising:
  • transmitter configured to transmit a test initiation signal across a wireless communication network to each of a plurality of emergency lights to initiate a test procedure at each emergency light;
  • receiver configured to receive results signals across the wireless communication network directly from each of the emergency lights, the results signals comprising the results from the test procedure from the emergency lights.
  • the invention provides a test system for an emergency lighting system:
  • the emergency lighting system comprising a plurality of emergency lights, each of the plurality of emergency lights being configured to receive a radio test signal directly from a control node to activate a test procedure at the light .
  • each of the plurality of emergency lights comprises a radio receiver for receiving the radio test signal directly from the control node .
  • processor for executing a test procedure at the emergency light in response to receiving the radio test signal; and radio transmitter for transmitting performance results from the executed test procedure directly to the control node.
  • radio test signals are received at the emergency light and the performance results are transmitted from the emergency light across a LoRa network.
  • each emergency light comprises an emergency lighting node, the emergen lighting node comprising the radio receiver and radio transmitter .
  • control node comprises a memory configured to store identification for each of the plurality of emergency lights, the control node configured to compare received performance results with stored identification to identify whether performance results have been received from each of the plurality of emergency lights .
  • the invention provides a method for testing the performance of an emergency lighting system, the emergency lighting system comprising a plurality of emergency lights, comprising the steps of:
  • the step of receiving the radio test signal directly from the control node is performed at a receiver at the emergency light.
  • Further embodiments of the invention comprise the step of: transmitting performance results from the executed test procedure directly to the control node.
  • each emergency light comprises an emergency lighting node, the emergency lighting node comprising the radio receiver and radio transmitter .
  • Further embodiments of the invention comprise the further step of storing identification for each of the plurality of emergency lights at the control node.
  • Further embodiments of the invention comprise the step of comparing received performance results with stored identification to identify whether performance results have been received from each of the plurality of emergency lights .
  • the invention provides a test systern for an emergency lighting system comprising a radio control node and a plurality of emergency lighting nodes : the radio control node comprising:
  • transmitter configured to transmit a test initiation signal across a wireless communication network to each of a plurality of emergency lighting nodes to initiate a test procedure at each emergency lighting node, each emergency lighting node being associated with an emergency light; receiver configured to receive results signals across the wireless communication network directly from each of the emergency lighting nodes, the results signals comprising the results from the test procedure from the emergency lighting nodes .
  • the wireless communication network is a LoRa network.
  • each of the plurality of emergency lighting nodes has a node ID, the node ID of the emergency lighting node being included in the results signal from the emergency lighting node.
  • the radio control node further comprising memory, the memory storing the node ID of each of the plurality of emergency lighting nodes .
  • the radio control node further comprises a processor, the processor
  • the radio control node further comprising an alert system.
  • the processor further comprising a clock, the processor being configured to activate the alert system if a results signal is not received from a node within a predefined time period.
  • an emergency lighting node of an emergency lighting system comprising: receiver configured to receive a test initiation signal directly from a radio control node;
  • processor configured to initiate a test procedure at an emergency light associated with the emergency lighting node on receipt of the test initiation signal and record results of the test procedure
  • the emergency light comprises an activation means and a performance
  • the processor initiating the test procedure by activating the activation means to activate the emergency light for a predefined activation period, the performance measurement system measuring the
  • the performance of the emergency light is the current and voltage performance during the activation period.
  • the invention provides a method for measuring the performance of an emergency lighting system comprising the steps of:
  • a radio control node transmitting a test initiation signal across a wireless communication network directly to a plurality of emergency lighting nodes, each emergency lighting node being associated with an emergency light, to initiate a test procedure at the emergency lighting node;
  • the results transmission signal configured to initiate the emergency lighting nodes to transmit the results signals.
  • Further embodiments of the invention comprise the further step of determining the performance of emergency lights in dependence on the results signals.
  • the wireless communication network is a LoRa network.
  • each of the plurality of emergency lighting nodes has a node ID, the node ID of the emergency lighting node being included in the results signal from the emergency lighting node.
  • the radio control node further comprises memory, the memory storing the node ID of each of the plurality of emergency lighting nodes .
  • the radio control node further comprises a processor, the processor
  • controller further comprises an alert system.
  • the processor further comprises a clock, the processor performing the step of activating the alert system if a results signal is not received from a node within a predefined time period.
  • the invention provides a method for measuring the performance of an emergency lighting system comprising the steps of:
  • the emergency light comprises an activation means and a performance measurement system
  • the processor performing the step of initiating the test procedure by activating the activation means to activate the emergency light for a predefined activation period
  • the performance measurement system measuring the performance of the emergency light during the activation period.
  • the performance of the emergency light is the current and voltage performance during the activation period.
  • FIG. 1 illustrates a prior art emergency lighting system
  • Figure 2 illustrates an emergency lighting system in accordance with an embodiment of the inventionr
  • Figure 3A illustrates the components of a control node
  • Figure 3B illustrates the components of a control node
  • Figure 4 illustrates the components of emergency lighting node and emergency light
  • FIG. 5 is a flow diagram showing steps taken in an embodiment of the invention.
  • FIG. 6 is a flow diagram showing steps taken in an embodiment of the invention.
  • FIG. 7 is a flow diagram showing steps taken in an embodiment of the invention.
  • Emergency lighting system 200 includes control node 210.
  • Control node 210 activates an emergency test procedure for an emergency lighting system.
  • the emergency lighting system includes emergency
  • Each luminaire includes a light source 1222, 2222, 3222, 4222, 5222 and each emergency light source has an associated emergency lighting node 1220, 2220, 3220, 4220, 5220.
  • the emergency lighting node is typically the part of the emergency luminaire responsible for communication with the control node and can also control operation of the emergency light. Typically the emergency lighting node is
  • Control node 210 communicates directly with emergency lighting nodes 1220, 2220b, 3220, 4220, 5220 over radio network 230.
  • Preferred embodiments of the invention communicate using LoRa technology.
  • LoRa is a low power wide area radio network.
  • Control node 210 includes a LoRa transmitter and LoRa receiver.
  • Emergency lighting nodes are LoRa nodes and also include LoRa transmitter and receiver. A benefit of using LoRa technology in emergency lighting systems is the long range of the LoRa
  • LoRa networks have range of several kms . Therefore, a single LoRa control node is able to communicate with multiple emergency lighting nodes at large enough distances to cover large buildings or areas . Additionally, the LoRa communication protocol is reliable over such long distances and can communicate with many nodes.
  • Every emergency luminaire in the emergency lighting system communicates directly with the control node across a radio network.
  • Control node 210 communicates with each emergency lighting node directly. All emergency lighting nodes receive radio signals from control node 210. In the architecture of Figure 2, the radio signals are transmitted in a star configuration.
  • the control node 210 is the hub which communicates with each emergency luminaire. Radio signals to and from the control node are not transmitted between emergency lighting nodes, instead signals are transmitted directly between control node and each emergency lighting node.
  • This communication architecture is sometimes referred to as point to point communication where there is direct communication between the control node and the emergency luminaires.
  • the communication from the control node to the emergency luminaires may be by a single broadcast communication or may be individual messages to each emergency luminaire .
  • the components of control node 210 are illustrated in Figures 3A and 3B. The components of control node 210 may be contained in a single physical unit or in multiple physical units which may be remote from one another.
  • Control node 210A includes gateway 302A and server 304A.
  • Gateway 302A includes the radio
  • Server 304A includes the processing and control components. Server 304A typically makes the decisions and instructions, and includes memory 320A, processor 330A, clock 340A and input 350A.
  • Gateway 302A and server 304A are connected by
  • the communication channel is an ethernet connection.
  • other wired connections may be used, for example electrical connection across an electrical wire, or wireless connections may be used.
  • Control node 210B includes LoRa antenna 310B configured to transmit and receive radio signals over LoRa network. Signals from antenna 310B are driven by RF engine 360B. Control node 210B also includes memory 320B, processor 330B, clock 340B and input 350B. Each control node is associated with one or more emergency lighting systems . Details of the emergency lighting systems are stored in memory 320B. Each emergency lighting system has a lighting system ID. Further details of each lighting system are stored in the memory including at least some of the following information: number of emergency lights within the emergency lighting system, location of the emergency lighting system, location of emergency lights within the emergency lighting system, identification data for each emergency light. Memory 320B also includes performance history and performance
  • Control nodes 210A/B include processors 330A/B.
  • the processors 330A/B manage incoming and outgoing radio signals and accesses information to and from memory 320A/B relating to emergency lighting tests .
  • Processors 330A/B access clock 340A/B.
  • Control nodes 210 A/B may include input 350A/B.
  • 350A/B may be a manual input device, for example a keyboard, activation switch or other input device. Input relating to emergency lighting test activation and management may be received at input device 350A/B.
  • an example of an emergency luminaire 4000 including an emergency lighting node and associated emergency light source is shown in Figure .
  • the emergency lighting node 400 includes a transmitter and receiver antenna 420.
  • the emergency lighting node operates within the LoRa communication framework and is configured to receive LoRa radio signals.
  • Emergency lighting node 400 includes memory 425. Memory 425 is configured to store performance data related to the emergency light during operation.
  • Memory also stores node ID allocated to the emergency lighting node and/or the emergency light. Memory may also store previous performance data relating to the associated emergency light. Memory may store test procedure
  • the processor 430 receives and interprets signals received by antenna 420 and controls activation of emergency light 410.
  • Clock 435 monitors activation periods for emergency light unit 410.
  • Emergency light unit 410 includes power supply 455.
  • power supply 455 is a battery unit dedicated to the emergency light.
  • Emergency light 410 includes light source 445 and switch 440 to control the ON/OFF state of light source 445.
  • Switch 440 is controlled by processor 430.
  • Switch 440 may include additional inputs not shown to trigger activation of the emergency light source, for example light sensors or other sensors or a manual input.
  • Performance management system 450 monitors performance of light source 445 during activation. Typically, the voltage across the light source and current through the light source are measured during the activation period. Performance measuring system 450 may monitor other performance criteria for the emergency light during the test procedure. Results obtain by the performance measurement system during the test are provided to memory 425 for storage.
  • FIG. 4 The arrangement of components within Figure 4 is for the purposes of illustration only and is not restrictive. In further embodiments the components are distributed differently between physical units. For example light source 445 may be in a physically separate head unit and all other components may be contained within a head unit. In further embodiments all components are positioned on a single physical unit.
  • the mode of operation of an embodiment of the invention is now described with reference to the flow diagrams of Figures 5, 6 and 7.
  • a particular lighting system is identified for testing at control node 210.
  • the lighting system is associated with a particular building or premises.
  • Control node 210 retrieves information relating to the identified lighting system from memory 320.
  • Typically information may include lighting system ID, location of the lighting system, number of lights within the identified lighting system, etc.
  • the test may be triggered by a manual input from input device 350 or triggered by a timing module using the timer from clock 340.
  • Processor 330 creates a test initiation signal.
  • the test initiation signal includes the identification of the emergency lighting system.
  • the signal also includes identification of the relevant test procedure requirements .
  • the system may include a first test procedure in which emergency lights are tested for a 120 minute period and a second test procedure when the lights are tested for a 90 minute period.
  • the test initiation signal is transmitted from radio transmitter 310 of control node 210 across LoRa network 230.
  • the time at which the test initiation signal is transmitted from control node 210 is stored in memory 320 as Tstart.
  • control node 210 transmits test initiation signals directly to each emergency luminaire . This is performed in a star
  • control node 201 being the hub.
  • test initiation signal is received at emergency lighting node 400 by antenna 420.
  • Test initiation signal is decoded by processor 430.
  • the parameters for the test are determined at 540.
  • the test parameters may be included in the test initiation signal or, alternatively, the particular test may be identified within the test initiation signal by a particular code and the test parameters associated with the code are retrieved from memory 425.
  • the test procedure is initiated at 550.
  • the test procedure involves activating emergency light source for a particular time period associated with the test.
  • the processor 430 activate switch 440 of the emergency light to activate light source 445.
  • the time at which the light source is activated is provided by clock 435 and stored as test data against this test.
  • the emergency light test performance measurement systems 450 monitors the performance of the emergency light. As discussed above, the voltage and current of the lighting circuit may be measured and stored in memory 425 at 460. Clock 435 monitors the duration of the test procedure and upon completion of the test duration processor 430 terminates the test by switching off light source 445 by switch 440. Emergency light test is terminated at 570.
  • test results are automatically transmitted back from transmitter 420 of each emergency lighting node to control node 210.
  • control node 210 monitors the time period from Tstart. Upon completion of a predefined time period, for example the time period associated with the test or at a later predefined period, control node 310 transmits a result request signal to all emergency lighting nodes within emergency lighting system at 610.
  • emergency lighting node 400 receives the results request signal at radio receiver 420.
  • processor 430 retrieves results from the emergency test from memory 425.
  • the test identification is included in the results request signal in order that results are retrieved from the appropriate test.
  • the results signal is transmitted from each emergency lighting node 400 at 640 and received at control node 210 at 650. Referring now to Figure 7, at 710 the results signals received from emergency lighting nodes within the
  • control node 210 emergency lighting system are analysed at control node 210.
  • the performance of each emergency light is analysed against predetermined criteria. If an emergency luminaire fails to meet the required performance standard an alert is raised at 730 by control node 210.
  • control node 210 determines whether results have been received from all emergency lighting nodes within the emergency lighting system.
  • the emergency lighting node IDs contained within the received signals are compared against the list of emergency lighting nodes within the emergency lighting system to identify whether any results have not been received. In the event that a results signal is not received from an emergency lighting node, an alert is raised at 730.
  • control node 210 may send an electronic message
  • control node 210 creates an additional interrogation signal and transmits this to those emergency lighting nodes which have not responded with results data.
  • Embodiments of the present invention provide a test system for an emergency lighting system which operates to initiate tests at emergency luminaires within emergency lighting system over a radio communication network.
  • Embodiments are configured to operate over a LoRa network.
  • a control node communicates directly with all emergency lighting nodes within an emergency lighting system.
  • Each emergency lighting node is associated with an emergency luminaire.
  • Each emergency lighting node includes a receiver for receiving radio signals from the control node. The configuration allows all emergency luminaires to be controlled directly from the control node without signals needing to be transmitted between
  • Such embodiments provide a flexible system in which additional emergency luminaires can be added into an emergency lighting system without requiring any rewiring of existing infrastructure. Additionally, an entire emergency lighting system even within large buildings or infrastructures can be tested by control node sending a single test initiation signal. Such systems provide control over the test environment and reduce the number of potential points of error in the case that a test result is not received from an emergency light.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Cookers (AREA)

Abstract

L'invention concerne une système d'éclairage d'urgence comprenant un noeud de commande et une pluralité de luminaires d'urgence, chaque luminaire d'urgence recevant des signaux de commande directement du noeud de commande par un réseau de communication sans fil, le noeud de commande étant configuré pour transmettre des signaux de lancement d'essai à chaque luminaire d'urgence.
PCT/AU2018/050363 2017-04-20 2018-04-20 Système d'éclairage d'urgence WO2018191791A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NZ758244A NZ758447B2 (en) 2017-04-20 2018-04-20 Emergency lighting system
SG11201909662R SG11201909662RA (en) 2017-04-20 2018-04-20 Emergency lighting system
AU2018255494A AU2018255494B2 (en) 2017-04-20 2018-04-20 Emergency lighting system
ZA2019/07579A ZA201907579B (en) 2017-04-20 2019-11-15 Emergency lighting system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2017901449 2017-04-20
AU2017901449A AU2017901449A0 (en) 2017-04-20 Emergency Lighting System

Publications (1)

Publication Number Publication Date
WO2018191791A1 true WO2018191791A1 (fr) 2018-10-25

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ID=63855484

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2018/050363 WO2018191791A1 (fr) 2017-04-20 2018-04-20 Système d'éclairage d'urgence

Country Status (4)

Country Link
AU (1) AU2018255494B2 (fr)
SG (1) SG11201909662RA (fr)
WO (1) WO2018191791A1 (fr)
ZA (1) ZA201907579B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019218014A1 (fr) * 2018-05-15 2019-11-21 WBS PROJECT H Pty Ltd Lumière d'urgence et réseau de communication sans fil
US11232684B2 (en) 2019-09-09 2022-01-25 Appleton Grp Llc Smart luminaire group control using intragroup communication

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004008261A2 (fr) * 2002-07-10 2004-01-22 Stg Aerospace Limited Ameliorations apportees ou ayant trait a des dispositifs de communication en reseau
US20080026781A1 (en) * 2006-07-26 2008-01-31 Thomas & Betts International, Inc. Emergency lighting system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101640167B1 (ko) * 2015-11-09 2016-07-22 주식회사 코너스톤즈테크놀로지 스마트 대피 유도 시스템 및 그 방법

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004008261A2 (fr) * 2002-07-10 2004-01-22 Stg Aerospace Limited Ameliorations apportees ou ayant trait a des dispositifs de communication en reseau
US20080026781A1 (en) * 2006-07-26 2008-01-31 Thomas & Betts International, Inc. Emergency lighting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019218014A1 (fr) * 2018-05-15 2019-11-21 WBS PROJECT H Pty Ltd Lumière d'urgence et réseau de communication sans fil
US11232684B2 (en) 2019-09-09 2022-01-25 Appleton Grp Llc Smart luminaire group control using intragroup communication

Also Published As

Publication number Publication date
AU2018255494B2 (en) 2023-03-30
SG11201909662RA (en) 2019-11-28
ZA201907579B (en) 2022-05-25
NZ758244A (en) 2021-05-28
AU2018255494A1 (en) 2019-11-07

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