EP2130409A2 - Améliorations apportées ou se rapportant à l'éclairage de surface - Google Patents

Améliorations apportées ou se rapportant à l'éclairage de surface

Info

Publication number
EP2130409A2
EP2130409A2 EP08736861A EP08736861A EP2130409A2 EP 2130409 A2 EP2130409 A2 EP 2130409A2 EP 08736861 A EP08736861 A EP 08736861A EP 08736861 A EP08736861 A EP 08736861A EP 2130409 A2 EP2130409 A2 EP 2130409A2
Authority
EP
European Patent Office
Prior art keywords
signal
control unit
wireless receiver
output
lighting control
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.)
Withdrawn
Application number
EP08736861A
Other languages
German (de)
English (en)
Inventor
Ernest Woollard
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.)
Wlucy&co Ltd
Original Assignee
Wlucy&co 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 Wlucy&co Ltd filed Critical Wlucy&co Ltd
Publication of EP2130409A2 publication Critical patent/EP2130409A2/fr
Withdrawn legal-status Critical Current

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
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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 improvements in or relating to area lighting.
  • Lamps are generally switched on by one of two methods.
  • the first is by way of an override switch that can be operated to force the lights on. This does however require access to the electrical switch room of the site, which is a usually a secure area for which authorization is needed in order to gain access. This process can take time, and there are sometimes problems with permissions such as in relation to lighting schemes for secure sites, dangerous areas etc.
  • the present invention therefore provides, in a first aspect, a lighting control unit, comprising a light sensor and a wireless receiver, adapted to output a control signal that is active when the light sensor detects a low light condition or the wireless receiver detects an incoming activation signal.
  • the wireless receiver is preferably adapted to respond to an encoded signal, in order to prevent false activations.
  • the wireless receiver can be one adapted to distinguish two incoming signals, including a first signal being the activation signal and a second signal on receipt of which the control unit is adapted to de-activate the control signal regardless of the state of the light sensor. This enables a further mode of operation in which the lamp is disabled, such as for maintenance work.
  • the present invention provides a lighting control unit comprising a wireless receiver adapted to output a first control signal that is active when an incoming signal is detected and a light sensor adapted to output a second control signal that is active when a low light condition is detected, and an OR operator to which the two control signals are delivered.
  • the wireless receiver can again be one that comprises two channels each adapted to detect an incoming signal.
  • the channels can include a first channel adapted to output the first control signal and a second channel that is adapted to output an over-ride signal, the invert of which is delivered to an AND operator together with the output of the OR operator.
  • a radiofrequency receiver is the most suitable form of wireless receiver.
  • the lamp itself can be activated by a relay driven by the remainder of the control unit, in order to isolate the AC mains power from the control unit.
  • the present invention also provides an area lighting system incorporating a lighting control unit as defined above, and a street light unit comprising an upright column and, at an upper region thereof, a lamp and such a lighting control unit.
  • FIG. 1 shows a schematic circuit embodying the present invention
  • Figure 2 shows the unit installed in a street light
  • Figure 2b is an enlargement of part of figure 2.
  • Embodiments of the present invention include a low power radio receiver associated with the photocell unit, which can be used to override the photocell temporarily so that an inspection can take place to see which lamps are faulty.
  • a small transmitter unit can be used to send a coded signal to the photocell for this purpose.
  • This transmitter unit can be kept by the site owner/representative (under lock & key if necessary) and given to the maintenance engineer so that the lamps can be switched on without the need to access the electrical fuse system, permissions can be acquired quickly from the site manager, and no dangerous techniques need be employed to override the photocells.
  • the benefits of doing so include;
  • FIG. 1 A block diagram of a typical system is shown in figure 1. This shows the receiver unit 10 included in the same volume as an existing photocell unit.
  • the transmitter and receivers used will typically work at one of the licence-free radio channels such as 433 or 862 MHz. The actual frequency used will of course depend on the regulations for the country in which it is used.
  • the antenna 12 for the radio receiver 10 can be provided as part of the PCB tracking, which will help to reduce the cost of the unit.
  • a primary output 8 conveys a digital signal indicating whether the receiver unit 10 has detected an appropriate signal from a transmitter unit.
  • the photocell 14 delivers a signal level 16 to a comparator 18 which checks that the light level indicated by the signal level 16 is below a chosen threshold, and outputs a digital light level signal 20. This is then combined with the primary output 8 of the receiver 10 via an OR operation 22 so as to produce a lamp control signal 24 that is high if either it is dark or if an appropriate signal has been received by the receiver 10.
  • a second channel of the receiver 10 is defined as a "lockout" mode. This allows for an inhibit (or lockout) signal which activates the secondary LOCKOUT output 26 of the receiver, and prevent the lamps from illuminating at all. This can be useful at times when maintenance work such as replacement of the bulb is in progress.
  • the invert of the LOCKOUT signal 26 is combined with the lamp control signal 24 in an AND operation 28 so as to produce an output 30 that is fed to a relay drive 32 and to a relay 34.
  • the relay 34 then controls the AC power to the lamp 36 via its switch contacts 38.
  • the photocell and control electronics is thus sufficiently simple and compact to fit on a circular PCB, in the same volume as an existing photocell unit and with the photocell located in the centre of the board.
  • the lamp can therefore be switched on at any time and will not interfere with any day/night synchronisation timers.
  • Figure 2 shows the unit installed in a street light.
  • a column 50 supports an arm 52 on the end of which is a lamp 54.
  • a control unit 56 shown in more detail in figure 2b, comprises a printed circuit board (PCB) 58 enclosed in a housing 60.
  • a transparent window 62 is formed in the housing 60, directly over the PCB 58, and a light sensor 14 is mounted on the PCB beneath the window 62.
  • the PCB 58 also carries the remainder of the logic circuitry shown in figure 1, and the aerial 12 formed as an elongate track on the PCB.
  • Incoming power cables 64, 66 are contained within the column 50 and are routed to the contacts of a dual pole relay 34. Power is also fed to a transformer 68 which delivers a low voltage DC supply to the PCB 58. Outgoing power cables 70, 72 are connected to the opposite side of the relay contacts and are routed within the arm 52 to the lamp 54.
  • radio receiver described above could be replaced with any form of receiver for a wirelessly transmitted signal.

Landscapes

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

Abstract

L'invention concerne une unité de commande d'éclairage qui comprend un capteur de lumière et un récepteur sans fil, et qui est apte à émettre un signal de commande qui est actif lorsque le capteur de lumière détecte un état de lumière faible ou que le récepteur sans fil détecte un signal d'activation entrant. Le récepteur sans fil est, de préférence, apte à répondre à un signal codé, afin d'empêcher de fausses activations. Le récepteur sans fil peut être un récepteur apte à distinguer deux signaux entrants, un premier signal étant le signal d'activation et un second signal à la réception duquel l'unité de commande est apte à désactiver le signal de commande indépendamment de l'état du capteur de lumière. Ceci permet un autre mode de fonctionnement dans lequel la lampe est désactivée, tel que pour un travail de maintenance. Selon un second aspect, la présente invention concerne une unité de commande d'éclairage comprenant un récepteur sans fil apte à émettre un premier signal de commande, qui est actif lorsqu'un signal entrant est détecté, et un capteur de lumière apte à émettre un second signal de commande qui est actif lorsqu'un état de lumière faible est détectée, et un opérateur OU auquel les deux signaux de commande sont adressés. Le récepteur sans fil peut être un récepteur comprenant deux canaux, un premier canal apte à émettre le premier signal de commande et un second canal qui est apte à émettre un signal de priorité, dont l'inverse est adressé à un opérateur ET conjointement avec la sortie de l'opérateur OU. De façon générale, un récepteur radio est la forme la plus appropriée de récepteur sans fil. L'invention porte également sur un système d'éclairage de surface incorporant une telle unité de commande d'éclairage, et sur une unité d'éclairage publique comprenant un poteau vertical et, à une région supérieure de celui-ci, une lampe et une telle unité de commande d'éclairage.
EP08736861A 2007-03-27 2008-03-26 Améliorations apportées ou se rapportant à l'éclairage de surface Withdrawn EP2130409A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0705852A GB2447912A (en) 2007-03-27 2007-03-27 Improvements in or relating to area lighting
PCT/GB2008/001097 WO2008117072A2 (fr) 2007-03-27 2008-03-26 Améliorations apportées ou se rapportant à l'éclairage de surface

Publications (1)

Publication Number Publication Date
EP2130409A2 true EP2130409A2 (fr) 2009-12-09

Family

ID=38024927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08736861A Withdrawn EP2130409A2 (fr) 2007-03-27 2008-03-26 Améliorations apportées ou se rapportant à l'éclairage de surface

Country Status (3)

Country Link
EP (1) EP2130409A2 (fr)
GB (1) GB2447912A (fr)
WO (1) WO2008117072A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8669717B2 (en) 2010-11-12 2014-03-11 Crs Electronics Exterior illumination and emergency signaling system and related methods
MX359618B (es) * 2015-01-30 2018-10-04 Lumidim De Mexico S A De C V Aparato para facilitar la operacion y el mantenimiento de luminarias o circuitos de alumbrado.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568470A (en) * 1978-05-03 1980-05-29 Fenner D Street lighting control
SE516500C2 (sv) * 1994-10-11 2002-01-22 Easy Living Ab Lampsockel, lampa och lamphållare innefattande organ för styrning av belysning
IE77329B1 (en) * 1995-08-01 1997-12-03 Noontek Limited A public lighting control unit
US6359555B1 (en) * 1997-04-16 2002-03-19 A.L. Airdata, Inc. Alarm monitoring and control system and method
US6119076A (en) * 1997-04-16 2000-09-12 A.L. Air Data, Inc. Lamp monitoring and control unit and method
US6714895B2 (en) * 2000-06-28 2004-03-30 A.L. Air Data, Inc. Lamp monitoring and control unit and method
US6731079B2 (en) * 2001-05-23 2004-05-04 General Electric Company Industrial lighting control system and method
US7406298B2 (en) * 2003-03-25 2008-07-29 Silver Spring Networks, Inc. Wireless communication system
GB2403357A (en) * 2003-06-25 2004-12-29 Lighthouse Data Man Ltd Monitoring system for public lighting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008117072A2 *

Also Published As

Publication number Publication date
GB0705852D0 (en) 2007-05-02
WO2008117072A3 (fr) 2008-11-20
WO2008117072A2 (fr) 2008-10-02
GB2447912A (en) 2008-10-01

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