EP3033930A1 - Lighting control module - Google Patents

Lighting control module

Info

Publication number
EP3033930A1
EP3033930A1 EP14750625.7A EP14750625A EP3033930A1 EP 3033930 A1 EP3033930 A1 EP 3033930A1 EP 14750625 A EP14750625 A EP 14750625A EP 3033930 A1 EP3033930 A1 EP 3033930A1
Authority
EP
European Patent Office
Prior art keywords
lighting control
expansion
control module
module
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP14750625.7A
Other languages
German (de)
French (fr)
Inventor
Paul Mans
Merlin Milner
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.)
Legrand Electric Ltd
Original Assignee
CP Electronics 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
Application filed by CP Electronics Ltd filed Critical CP Electronics Ltd
Publication of EP3033930A1 publication Critical patent/EP3033930A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers
    • 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

  • This invention relates to a lighting control module and, in particular, a lighting control module for use with an expansion module.
  • Lighting control modules are used to control the operation of luminaires.
  • the luminaires are connected electrically to respective output ports of the lighting control module.
  • a typical lighting control module will have ten output ports.
  • the present invention seeks to address this situation.
  • a lighting control module comprising a housing, at least one input port for electrical connection to an electrical supply, at least one output port for connection to a luminaire or other controlled device and control circuitry for controlling the electrical supply between the input port(s) and the output port(s).
  • the lighting control module comprises an expansion port for an expansion module comprising at least one further output port, the expansion port comprising at least one electrical connector for connection to the expansion module.
  • the housing comprises a removable cover for the expansion port, whereby, in the absence of an expansion module, the housing and the removable cover completely enclose the electrical connectors.
  • the removable cover is mounted to the housing by fixings which can only be released with a tool.
  • the lighting control module can be provided with an expansion module to increase the number (or configuration) of the available output ports.
  • the provision of a removable cover which can only be released with a tool means that the electrical connector(s) to the expansion module can be very simple and low cost, because they are not accessible by the user in normal use of the lighting controller. This has the advantage of saving both space and cost in the design of the lighting control module.
  • the electrical connectors are exposed male connectors, for example simple metal pins.
  • Such connectors provide the simplest and smallest possible connection between the lighting control module and the expansion module.
  • other connectors could be used, such as simple sockets.
  • the lighting control module may comprise a wiring compartment enclosing the input port(s).
  • the wiring compartment may have a further removable cover which is mounted by fixings which can only be released with a tool.
  • the lighting control module may comprise a removable cover for the wiring compartment in addition to a removable cover for the expansion port.
  • the fixings are screws.
  • the tool is therefore typically a screwdriver.
  • Other fixings, such as specialist clips may be used.
  • the expansion module comprises control circuitry for controlling the electrical supply between the electrical connectors and the further output ports.
  • the functionality of the expansion module can be independently selected relative to the functionality of the lighting control module.
  • the expansion module may provide additional functionality not provided by the unexpanded lighting control module.
  • the expansion module may provide digital dimming outputs, analogue dimming outputs or control for window blinds or other peripheral devices.
  • the lighting control module provides fewer than ten output ports, for example eight output ports. This has been found to be a convenient number for most applications.
  • the expansion module may comprises more than two further output ports, for example four further output ports.
  • the invention extends to a lighting control module in combination with an expansion module.
  • the invention further extends to a lighting control system comprising the lighting control module and a plurality of expansion modules, each expansion module having different control circuitry for controlling the electrical supply between the electrical connectors and the further output ports.
  • the same basic lighting control module may be used with an expansion module selected from a range of available expansion modules to meet the requirements of a particular user or application. This simplifies both manufacturing and inventory control.
  • Figure 1 is a perspective view of a lighting control module according to an embodiment of the invention
  • Figure 2 is an exploded perspective view of the lighting control module of Figure
  • FIG 3 is a perspective view of the lighting control module of Figure 1 with the expansion port cover removed;
  • Figure 4 is an exploded perspective view of the lighting control module of Figure
  • Figure 5 is a perspective view of the lighting control module of Figure 1 including an expansion module.
  • FIGS 1 to 5 show a lighting control module 1 according to an embodiment of the invention.
  • the lighting control module 1 is provided with eight output ports 2, each of which can be connected to a luminaire or other device using a standard GST 18/6 luminaire connector (not shown).
  • Each output port 2 has six terminals providing, respectively, switched live, earth, neutral, permanent live and two dimming outputs.
  • the lighting control module 1 is connected to the live, earth, neutral and permanent live connections of a power supply (not shown) via a plurality of input ports in a wiring compartment 3.
  • the wiring compartment 3 also has four extra-low voltage (ELV) inputs and two controller area network (CAN) bus ports so that multiple lighting control modules 1 can be connected together in a network.
  • EUV extra-low voltage
  • CAN controller area network
  • the output to the terminals of each output port 2 of the lighting control module 1 is controlled by control circuitry of the lighting control module 1.
  • the dimming outputs may operate according to Digital Serial Interface (DSI), Digital Addressable Lighting Interface (DALI) or 1-10V analogue protocols, as required.
  • the lighting control module 1 is also provided at one end with six RJ45 ports 4.
  • the RJ45 ports provide controller area network (CAN) bus connections so that multiple lighting control modules 1 can be connected together in a network.
  • CAN controller area network
  • the control circuitry of the lighting control module is provided within a housing 5, which protects the circuitry from the environment and also prevents access by the user to the circuitry during use.
  • the wiring compartment 3 is provided with a cover 6 which is mounted to the housing 5 by screws 7.
  • the wiring compartment cover 6 can be removed from the housing 5 by unscrewing the screws 7 when the power supply (and other) connections are to be connected within the wiring compartment. The wiring compartment cover 6 and the screws 7 are then replaced to prevent access to the wiring compartment during normal use.
  • the lighting control module 1 is provided with an expansion port 8 which allows the addition of up to four further output ports 9 on an expansion module 10, as shown in Figures 4 and 5.
  • the expansion port 8 is provided as an opening in the housing 5 into which the expansion module 10 is received.
  • the expansion module 10 is an optional addition to the lighting control module 1.
  • the expansion port 8 is covered by an expansion port cover 1 1.
  • the expansion port cover 1 1 is mounted to the housing 5 by screws 12. This means that the expansion port cover 11 can only be removed with the use of an additional tool, i.e. a screwdriver. Because the expansion port cover 11 can only be removed with a tool, there is no access by the user to the expansion port 8 during normal use of the lighting control module 1.
  • electrical connectors 13 are provided for connection to the expansion module 10. As shown in Figures 2 to 4, the electrical connectors are in the form of two rows of six projecting metal pins. Were the expansion port 8 to be accessible in normal use of the lighting control module 1 , such connectors 13 would not meet the required electrical safety standard as they would potentially expose the user to line voltage. However, the provision of the expansion port cover 11 that can only be removed using a tool means that there is no user access to the expansion port connectors 13 in normal use of the lighting control module 1 and the required electrical safety standard is met. The provision of the expansion port connectors 13 in the form of projecting metal pins, i.e. "male" connectors, also means that the expansion port 8 is not required to accommodate the insulation that would surround an insulated socket, i.e. "female" connection.
  • the electrical connectors 13 provide connections to the expansion module 10 for the live, earth, neutral and permanent live connections from the lighting control module 1 , as well as extra-low voltage (ELV) connections and controller area network (CAN) bus connections.
  • ELV extra-low voltage
  • CAN controller area network
  • the expansion module 10 is received within the expansion port 8 and fixed in position by the screws 12.
  • the male expansion port connectors 13 mate with corresponding female connectors in the expansion module 10 to make the necessary electrical connections to the expansion module 10.
  • the expansion module 10 is provided with its own control circuitry 14, which cooperates with the control circuitry of the lighting control module 1 to provide the required functionality of the further output ports 9.
  • the expansion module 10 projects above the upper surface of the housing 5, which allows space below the expansion module 10 for the control circuitry of the lighting control module 1.
  • a variety of available expansion modules 10 may be provided that can be selected by the user to meet the requirements of a particular application.
  • the further output ports 9 may provide any combination of digital dimming, analogue dimming, switching only or control for window blinds.
  • One or more of the further output ports 9 may provide a volt free output port for the switching of a peripheral device. Consequently, the same basic lighting control module 1 may be sold with different expansion modules 10 to meet the requirements of a range of users, in a "mix and match" configuration.
  • a lighting control module 1 comprises a housing 5, input ports for electrical connection to an electrical supply and output ports 2 for connection to a luminaire or other controlled device.
  • the lighting control module 1 comprises control circuitry for controlling the electrical supply between the input ports and the output ports 2.
  • the lighting control module 1 further comprises an expansion port 8 for an expansion module 10 comprising at least one further output port 9.
  • the expansion port 8 comprises at least one electrical connector 13 for connection to the expansion module 10.
  • the housing 5 comprises a removable cover 11 for the expansion port 8. In the absence of an expansion module 10, the housing 5 and the removable cover 1 1 completely enclose the electrical connectors 13 and the removable cover 11 is mounted to the housing 5 by fixings 12 which can only be released with a tool.
  • the lighting control module has 1 the advantage that the expansion module 10 can be connected by simple electrical connections which saves both space and cost.

Abstract

A lighting control module (1) comprises a housing (5), input ports for electrical connection to an electrical supply and output ports (2) for connection to a luminaire or other controlled device. The lighting control module (1) comprises control circuitry for controlling the electrical supply between the input ports and the output ports (2). The lighting control module (1) further comprises an expansion port (8) for an expansion module (10) comprising at least one further output port (9). The expansion port (8) comprises at least one electrical connector (13) for connection to the expansion module (10). The housing (5) comprises a removable cover (11) for the expansion port (8). In the absence of an expansion module (10), the housing (5) and the removable cover (11) completely enclose the electrical connectors (13) and the removable cover (11) is mounted to the housing (5) by fixings (12) which can only be released with a tool. The lighting control module has (1) the advantage that the expansion module (10) can be connected by simple electrical connections which saves both space and cost.

Description

LIGHTING CONTROL MODULE
[0001] This invention relates to a lighting control module and, in particular, a lighting control module for use with an expansion module.
BACKGROUND
[0002] Lighting control modules are used to control the operation of luminaires.
Typically, the luminaires are connected electrically to respective output ports of the lighting control module. A typical lighting control module will have ten output ports.
[0003] It is known to provide an expansion module which can be connected to the lighting control module to increase the number of available output ports. However, providing the necessary connector for an expansion module increases the cost and complexity of the lighting control module, which may never be used with an expansion module.
[0004] The present invention seeks to address this situation.
BRIEF SUM MARY OF THE DISCLOSURE
[0005] In accordance with the present invention there is provided a lighting control module comprising a housing, at least one input port for electrical connection to an electrical supply, at least one output port for connection to a luminaire or other controlled device and control circuitry for controlling the electrical supply between the input port(s) and the output port(s). The lighting control module comprises an expansion port for an expansion module comprising at least one further output port, the expansion port comprising at least one electrical connector for connection to the expansion module. The housing comprises a removable cover for the expansion port, whereby, in the absence of an expansion module, the housing and the removable cover completely enclose the electrical connectors. The removable cover is mounted to the housing by fixings which can only be released with a tool.
[0006] Thus, in accordance with the invention the lighting control module can be provided with an expansion module to increase the number (or configuration) of the available output ports. However, the provision of a removable cover which can only be released with a tool means that the electrical connector(s) to the expansion module can be very simple and low cost, because they are not accessible by the user in normal use of the lighting controller. This has the advantage of saving both space and cost in the design of the lighting control module.
[0007] In the presently preferred embodiment the electrical connectors are exposed male connectors, for example simple metal pins. Such connectors provide the simplest and smallest possible connection between the lighting control module and the expansion module. However, other connectors could be used, such as simple sockets.
[0008] The lighting control module may comprise a wiring compartment enclosing the input port(s). The wiring compartment may have a further removable cover which is mounted by fixings which can only be released with a tool. Thus, the lighting control module may comprise a removable cover for the wiring compartment in addition to a removable cover for the expansion port.
[0009] Typically, the fixings are screws. The tool is therefore typically a screwdriver. Other fixings, such as specialist clips may be used.
[0010] In a presently preferred embodiment, the expansion module comprises control circuitry for controlling the electrical supply between the electrical connectors and the further output ports. In this way, the functionality of the expansion module can be independently selected relative to the functionality of the lighting control module. Thus, the expansion module may provide additional functionality not provided by the unexpanded lighting control module. For example, the expansion module may provide digital dimming outputs, analogue dimming outputs or control for window blinds or other peripheral devices.
[0011] Typically the lighting control module provides fewer than ten output ports, for example eight output ports. This has been found to be a convenient number for most applications. The expansion module may comprises more than two further output ports, for example four further output ports.
[0012] The invention extends to a lighting control module in combination with an expansion module. The invention further extends to a lighting control system comprising the lighting control module and a plurality of expansion modules, each expansion module having different control circuitry for controlling the electrical supply between the electrical connectors and the further output ports. Thus, in accordance with this aspect of the invention, the same basic lighting control module may be used with an expansion module selected from a range of available expansion modules to meet the requirements of a particular user or application. This simplifies both manufacturing and inventory control.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Embodiments of the invention are further described hereinafter with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a lighting control module according to an embodiment of the invention; Figure 2 is an exploded perspective view of the lighting control module of Figure
1 ;
Figure 3 is a perspective view of the lighting control module of Figure 1 with the expansion port cover removed;
Figure 4 is an exploded perspective view of the lighting control module of Figure
1 ; and
Figure 5 is a perspective view of the lighting control module of Figure 1 including an expansion module.
DETAILED DESCRIPTION
[0014] Figures 1 to 5 show a lighting control module 1 according to an embodiment of the invention. In this embodiment, the lighting control module 1 is provided with eight output ports 2, each of which can be connected to a luminaire or other device using a standard GST 18/6 luminaire connector (not shown). Each output port 2 has six terminals providing, respectively, switched live, earth, neutral, permanent live and two dimming outputs. The lighting control module 1 is connected to the live, earth, neutral and permanent live connections of a power supply (not shown) via a plurality of input ports in a wiring compartment 3. The wiring compartment 3 also has four extra-low voltage (ELV) inputs and two controller area network (CAN) bus ports so that multiple lighting control modules 1 can be connected together in a network. The output to the terminals of each output port 2 of the lighting control module 1 is controlled by control circuitry of the lighting control module 1. The dimming outputs may operate according to Digital Serial Interface (DSI), Digital Addressable Lighting Interface (DALI) or 1-10V analogue protocols, as required. The lighting control module 1 is also provided at one end with six RJ45 ports 4. The RJ45 ports provide controller area network (CAN) bus connections so that multiple lighting control modules 1 can be connected together in a network. There are two powered CAN ports and two unpowered CAN ports, plus an extra-low voltage (ELV) switch input port, each of which is connected to the control circuitry of the lighting control module 1.
[0015] The control circuitry of the lighting control module is provided within a housing 5, which protects the circuitry from the environment and also prevents access by the user to the circuitry during use. The wiring compartment 3 is provided with a cover 6 which is mounted to the housing 5 by screws 7. The wiring compartment cover 6 can be removed from the housing 5 by unscrewing the screws 7 when the power supply (and other) connections are to be connected within the wiring compartment. The wiring compartment cover 6 and the screws 7 are then replaced to prevent access to the wiring compartment during normal use.
[0016] In accordance with the invention, the lighting control module 1 is provided with an expansion port 8 which allows the addition of up to four further output ports 9 on an expansion module 10, as shown in Figures 4 and 5. The expansion port 8 is provided as an opening in the housing 5 into which the expansion module 10 is received. The expansion module 10 is an optional addition to the lighting control module 1. When the expansion module 10 is not used, the expansion port 8 is covered by an expansion port cover 1 1. Importantly, the expansion port cover 1 1 is mounted to the housing 5 by screws 12. This means that the expansion port cover 11 can only be removed with the use of an additional tool, i.e. a screwdriver. Because the expansion port cover 11 can only be removed with a tool, there is no access by the user to the expansion port 8 during normal use of the lighting control module 1.
[0017] Within the expansion port 8, electrical connectors 13 are provided for connection to the expansion module 10. As shown in Figures 2 to 4, the electrical connectors are in the form of two rows of six projecting metal pins. Were the expansion port 8 to be accessible in normal use of the lighting control module 1 , such connectors 13 would not meet the required electrical safety standard as they would potentially expose the user to line voltage. However, the provision of the expansion port cover 11 that can only be removed using a tool means that there is no user access to the expansion port connectors 13 in normal use of the lighting control module 1 and the required electrical safety standard is met. The provision of the expansion port connectors 13 in the form of projecting metal pins, i.e. "male" connectors, also means that the expansion port 8 is not required to accommodate the insulation that would surround an insulated socket, i.e. "female" connection.
[0018] The electrical connectors 13 provide connections to the expansion module 10 for the live, earth, neutral and permanent live connections from the lighting control module 1 , as well as extra-low voltage (ELV) connections and controller area network (CAN) bus connections.
[0019] As shown in Figures 4 and 5, the expansion module 10 is received within the expansion port 8 and fixed in position by the screws 12. The male expansion port connectors 13 mate with corresponding female connectors in the expansion module 10 to make the necessary electrical connections to the expansion module 10. The expansion module 10 is provided with its own control circuitry 14, which cooperates with the control circuitry of the lighting control module 1 to provide the required functionality of the further output ports 9. When fitted to the lighting control module 1 , the expansion module 10 projects above the upper surface of the housing 5, which allows space below the expansion module 10 for the control circuitry of the lighting control module 1.
[0020] A variety of available expansion modules 10 may be provided that can be selected by the user to meet the requirements of a particular application. For example, the further output ports 9 may provide any combination of digital dimming, analogue dimming, switching only or control for window blinds. One or more of the further output ports 9 may provide a volt free output port for the switching of a peripheral device. Consequently, the same basic lighting control module 1 may be sold with different expansion modules 10 to meet the requirements of a range of users, in a "mix and match" configuration.
[0021] In summary, a lighting control module 1 comprises a housing 5, input ports for electrical connection to an electrical supply and output ports 2 for connection to a luminaire or other controlled device. The lighting control module 1 comprises control circuitry for controlling the electrical supply between the input ports and the output ports 2. The lighting control module 1 further comprises an expansion port 8 for an expansion module 10 comprising at least one further output port 9. The expansion port 8 comprises at least one electrical connector 13 for connection to the expansion module 10. The housing 5 comprises a removable cover 11 for the expansion port 8. In the absence of an expansion module 10, the housing 5 and the removable cover 1 1 completely enclose the electrical connectors 13 and the removable cover 11 is mounted to the housing 5 by fixings 12 which can only be released with a tool. The lighting control module has 1 the advantage that the expansion module 10 can be connected by simple electrical connections which saves both space and cost.
[0022] Throughout the description and claims of this specification, the words "comprise" and "contain" and variations of them mean "including but not limited to", and they are not intended to (and do not) exclude other components, integers or steps. Throughout the description and claims of this specification, the singular encompasses the plural unless the context otherwise requires. In particular, where the indefinite article is used, the specification is to be understood as contemplating plurality as well as singularity, unless the context requires otherwise.
[0023] Features, integers, characteristics or groups described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive. The invention is not restricted to the details of any foregoing embodiments. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

1. A lighting control module comprising:
a housing;
at least one input port for electrical connection to an electrical supply;
at least one output port for connection to a luminaire or other controlled device; control circuitry for controlling the electrical supply between the input port(s) and the output port(s);
an expansion port for an expansion module comprising at least one further output port, the expansion port comprising at least one electrical connector for connection to the expansion module,
wherein the housing comprises a removable cover for the expansion port, whereby, in the absence of an expansion module, the housing and the removable cover completely enclose the electrical connectors and wherein the removable cover is mounted to the housing by fixings which can only be released with a tool.
2. A lighting control module as claimed in claim 1 , wherein the electrical connectors are exposed male connectors.
3. A lighting control module as claimed in any preceding claim further comprising a wiring compartment enclosing the input port(s), wherein the wiring compartment has a further removable cover which is mounted by fixings which can only be released with a tool.
4. A lighting control module as claimed in any preceding claim, wherein the fixings are screws.
5. A lighting control module as claimed in any preceding claim, wherein the expansion module comprises control circuitry for controlling the electrical supply between the electrical connectors and the further output ports.
6. A lighting control module as claimed in any preceding claim comprising fewer than ten output ports.
7. A lighting control module as claimed in any preceding claim, wherein the expansion module comprises more than two further output ports.
8. A lighting control module as claimed in any preceding claim in combination with an expansion module.
9. A lighting control system comprising a lighting control module as claimed in any preceding claim and a plurality of expansion modules, each expansion module having different control circuitry for controlling the electrical supply between the electrical connectors and the further output ports.
EP14750625.7A 2013-08-16 2014-08-08 Lighting control module Ceased EP3033930A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1314714.5A GB2517214B (en) 2013-08-16 2013-08-16 Lighting control module
PCT/GB2014/052443 WO2015022505A1 (en) 2013-08-16 2014-08-08 Lighting control module

Publications (1)

Publication Number Publication Date
EP3033930A1 true EP3033930A1 (en) 2016-06-22

Family

ID=49301828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14750625.7A Ceased EP3033930A1 (en) 2013-08-16 2014-08-08 Lighting control module

Country Status (3)

Country Link
EP (1) EP3033930A1 (en)
GB (1) GB2517214B (en)
WO (1) WO2015022505A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109496099A (en) * 2018-11-12 2019-03-19 深圳恒之源技术股份有限公司 A kind of control cabinet and its control method for rail vehicle illumination

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AP854A (en) * 1996-05-10 2000-07-03 Circuit Breaker Industries Ltd Modular circuit breaker interconnection system.
GB2463063B (en) * 2008-09-01 2012-02-01 Cp Electronics Ltd Modular marshalling system
US8878454B2 (en) * 2009-12-09 2014-11-04 Tyco Electronics Corporation Solid state lighting system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015022505A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109496099A (en) * 2018-11-12 2019-03-19 深圳恒之源技术股份有限公司 A kind of control cabinet and its control method for rail vehicle illumination

Also Published As

Publication number Publication date
WO2015022505A1 (en) 2015-02-19
GB2517214B (en) 2016-04-20
GB201314714D0 (en) 2013-10-02
GB2517214A (en) 2015-02-18

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