WO2004109920A1 - Interrupteur telecommande - Google Patents

Interrupteur telecommande Download PDF

Info

Publication number
WO2004109920A1
WO2004109920A1 PCT/AU2004/000742 AU2004000742W WO2004109920A1 WO 2004109920 A1 WO2004109920 A1 WO 2004109920A1 AU 2004000742 W AU2004000742 W AU 2004000742W WO 2004109920 A1 WO2004109920 A1 WO 2004109920A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
switch assembly
remote
window
assembly according
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
PCT/AU2004/000742
Other languages
English (en)
Inventor
Allan Dolph Meyer
Hayel Smair
Mathew John Dowman
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.)
Liteforce Pty Ltd
Original Assignee
Liteforce 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
Application filed by Liteforce Pty Ltd filed Critical Liteforce Pty Ltd
Publication of WO2004109920A1 publication Critical patent/WO2004109920A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector

Definitions

  • This invention relates to remote-controlled electrical switches suitable for use in commercial and domestic buildings for controlling electric lights and other electrical apparatus when the proximity of an object, such as a human hand, is detected by the switch.
  • Such switches are sometimes referred to as 'proximity switches'.
  • the switches of the invention When used to control room lighting, the switches of the invention normally will be 'wall-mounted', that is supported in or on a vertical surface, such as a wall, doorframe, architrave or the like. However, they can also be mounted horizontally in ceilings, if desired, and can be incorporated in standard, bedside, reading or other free-standing light fittings.
  • the remote-controlled or proximity switches of the invention may be used to control many electrical devices in the professional and industrial environment.
  • proximity switches are known where an electrical switch is operated by the proximity of an object. Such switches are adapted to sense the presence of an object in various ways; for example, by reflectivity with respect to electromagnetic radiation at a selected or a broad range of wavelengths, by capacitive effects, by sensing a thermal radiator or thermal sink, by sensing a magnetic field or the presence of a ferromagnetic object.
  • few proximity switches have reached the domestic housing market for the control of lights, for example, where they could be implemented as non-contact 'hand-wave' switches. Such switches would offer great convenience and prevent walls, architraves and nearby fixtures from becoming dirty from repeated hand-contact and are conveniently operated by children. Most industrial proximity switches are far too expensive and operate over much too short detection distances. On the other hand, remotely operated switches used in door openers and security lights have ranges that are too broad. They also tend to be too complex and expensive for domestic use. Furthermore, most of such proximity switches require special installation and wiring.
  • this invention comprises a remote-controlled electrical switch assembly of the proximity type suitable for use as a 'hand wave' operable switch in the domestic environment.
  • the switch assembly is preferably suitable for direct substitution for a conventional mechanically- operated wall-mounted electrical switch for controlling lights or other electrical appliances.
  • the switch may be operable by the presence of an object (including a person) closer than about 2000 mm, but preferably between about 100 and 600 mm). Substitutability may be effected or facilitated by the device having a housing or a faceplate (sometimes also called a 'cover-plate' in the industry) of substantially the same dimensions and/or mounting arrangements (eg, screw holes) as housings or faceplates of the common mechanically-operated wall switches found in the domestic environment.
  • the switch assembly thus may include housing means having a front plane that will be normally vertical and substantially flush with the wall, the housing means containing circuit means - such as a circuit board with electronic components thereon.
  • the circuit means includes IR transmitter means adapted to form and direct an interrogating transmitted IR beam along a transmission axis that subtends a first acute angle to the horizontal (assuming a wall-mounted device), and, IR receiver means adapted to form and detect a reflected beam returned along a receiving axis that subtends a second acute angle to the horizontal (again assuming a wall-mounted device).
  • the switch assembly includes switch means - normally a relay - connected to the receiver means and operable upon detection of a reflected beam to successively energize and de-energize the relay to turn the connected load - normally room lighting - on and off.
  • switch means normally a relay - connected to the receiver means and operable upon detection of a reflected beam to successively energize and de-energize the relay to turn the connected load - normally room lighting - on and off.
  • the interrogating transmitted beam is modulated and that the receiver is tuned or adjusted to respond selectively to IR radiation of the same modulation.
  • the axis of the receiver beam it is desirable for the axis of the receiver beam to be angled downwards so that the effect of sunlight is minimized.
  • the circuit board be removable and repositionable in the housing to arrange for the receiver beam to be angled downward even though the disposition of the housing may be dictated by the orientation of the mounting plate of a standard wall switch that is being replaced.
  • the housing means may be box-like with a square section and the circuit board may also be square and dimensioned so that it will be slidingly accommodated by the housing in the different positions required.
  • a window plate may then be clipped onto the front of the housing to hold the circuit board in place while, at the same time, providing a window or windows for the transmitted and reflected beams.
  • the window plate can be combined with a faceplate or separate from it. If desired the window plate can be formed to provide a lenticular or focusing effect for the IR beams.
  • the switch assembly can be secured to a standard mounting plate by mounting means - such as lugs with mounting holes - formed on the housing sides or by removably clipping the housing to a faceplate that is, in turn, secured to the mounting plate.
  • mounting means - such as lugs with mounting holes - formed on the housing sides or by removably clipping the housing to a faceplate that is, in turn, secured to the mounting plate.
  • Different colored LEDs may be included in the circuit means and arranged on the front of the circuit board to indicate the stat of the switch assembly. For example, red light may be emitted when the relay is energized and a blue light may be emitted when it is not energized. Such light may be transmitted through a suitable window in the window plate and/or faceplate. Where separate window and faceplates are used, the faceplate preferably has one or more cutouts opposite the windows in the window plate and the window for the visible LED light can be of lenticular form. Where the window plate and faceplate are combined, the faceplate can be formed of plastic material that is transparent to IR radiation and translucent to visible radiate so that the LED light appears to make it glow in the appropriate color.
  • Figure 1 is an external perspective of the switch assembly of the chosen example showing the housing assembly, faceplate and electrical leads in 'exploded' form.
  • Figure 2 is an exploded perspective view of the housing assembly of Figure 1 , showing the main components thereof.
  • Figure 3 is a simplified sectional elevation of the switch assembly taken on plane 3 - 3 of Figure 1 with the faceplate fitted to the housing assembly, Figure 3 diagrammatically indicating the zone of detection and the relevant angles.
  • Figure 4A is an exploded perspective view of the switch assembly of Figure 1 indicating the manner in which it can be horizontally mounted in a dry wall in place of a standard toggle switch.
  • Figure 4B is an exploded perspective view of the switch assembly of Figure 1 indicating the manner in which it can be vertically mounted in a dry wall in place of a standard toggle switch.
  • Figure 5 is a block diagram of the circuit of the switch assembly of the chosen example.
  • Figure 6 is a flow chart indicating the basic logic sequence employed in the switch assembly of the chosen example.
  • Switch assembly 10 basically comprises a housing assembly 12 and a faceplate 14.
  • Housing assembly 12 includes a rectilinear box-like housing molding 16 having integral side lugs 18 with mounting holes 20 for mounting screws 22, housing molding 16 having an open front face 24 (see also Figure 2) that, together with lugs 18, define a front plane.
  • the open front face of housing molding 16 is closed by a snap-fitting window plate 26.
  • Electrical leads, comprising active and neutral power leads 28 and 30 and load lead 32 (respectively), are shown ready for insertion into respective terminals 34, 36 and 38 in housing assembly 12.
  • Window plate 26 is molded from IR transparent plastic, which preferably appears 'smoky' or darkly translucent in normal light, and has an integral central elongate IR window protrusion 40 on its front face.
  • a small, round and clear visible-spectrum window-plug 41 is pushed into a hole 42 (see Figure 2) formed in window plate 26 so as to protrude a little from the front face thereof, the inner or rear end 43 of window-plug 41 being formed at an acute angle to the axis of the plug in order to more readily accept and transmit light generated from within housing molding 16.
  • window protrusion 40 forms a first window in window plate 26 that is transparent to IR radiation and plug 41 forms a second window in window plate 26 that is transparent to visible light.
  • Faceplate 14 has a central elongate cutout 44 for window 40 and a small circular cutout 46 for window-plug 41 that protrudes a little from the front face of window plate 26.
  • faceplate 14 is removably attached to housing assembly 12 by four clips 48 (shown in broken lines) that engage the four edges 50 of lugs 18, clips 48 being integrally molded on the back face of faceplate 14.
  • lugs 18 and their mounting holes 20 form the mounting means.
  • lugs 18 can be dispensed with and the mounting means can be constituted by holes 52 (shown in broken lines in Figure 1) in faceplate 14 for mounting screws 22. In that case, however, it is desirable that a portion of each lug 18 be retained for engagement by clips 48, or that clips 48 be repositioned to engage other portions of housing molding 16.
  • window-plate 26 and faceplate 14 can be integral with the combined plate being clipped onto housing molding 16 and being attached to a fixture by mounting screws 20 passing through mounting holes such as those indicated at 52.
  • FIG. 2 is an exploded view of the housing assembly 12 from which it will be seen that terminals 34, 36 and 38, along with other electrical / electronic components of the assembly are mounted on a square printed circuit board 54.
  • the components basically comprise upper and lower collimating tubes 56 and 58 for the IR sensor and transmitter transducers respectively (to be described below with reference to Figures 3, 4A and 4B), solid-state relay 60, an integrated circuit opto-coupler for operating relay in an electrically isolated manner, AC - DC converter (low voltage DC power supply) chip 62, microcontroller 64, and LEDs 66 and 68 of different colors - for example, red and blue.
  • LEDs 66 and 68 comprise the aforementioned multicolor LED means and may be integrated in a single physical entity, as is known in the art. All the electronic components indicated are readily available commercially and can be mounted on circuit board 54 to perform the functions indicated by those skilled in the art.
  • Molded box-like housing 16 has a square (vertical) section to slidingly accommodate circuit board 54 in any one of four possible orientations, though only two that at 90 degrees apart are necessary.
  • board 54 can be slid rearward into housing molding 16 in the orientation shown so that terminals 34 on the top lines up with access hole 70 in molding 16 and terminals 36 and 38 are on the right and line up with access holes 72 and 74 in molding 16. This is for a horizontally disposed molding 16; that is, where lugs 18 are horizontally arranged.
  • Window plate 26 is molded with an integral rearwardly extending leg 80 in each corner, legs 80 serving to locate circuit board 54 in the back of housing molding 16 when window plate 26 is in position.
  • Window plate 26 has side clips 82 by which it is releasably clipped into slots 83 where lugs 18 join the box-like portion of molding 16. Clips 82 can be readily formed to fit into molding 16 so as to clip into slots or behind shallow protrusions, if desired.
  • an IR receiving LED transducer 84 is mounted near the upper edge of board 54 so as to be angled downwards and covered by collimating tube 56, which can be simply pushed onto LED 84 or its base.
  • a transmitting LED transducer 86 is mounted near the bottom of board 54 so as to be angled upwards and is covered by collimating tube 58.
  • the upwardly angled collimated interrogating beam emitted by LED 86 is indicated at 90 and has an axis x that subtends a first acute angle ⁇ to the horizontal central axis y.
  • the collimated field of view (or received beam) of receiving LED 84 is indicated at 92 and has an axis z that subtends a second acute angle ⁇ to the horizontal central axis y.
  • the region of overlap in which an object can be detected is therefore that indicated by hatched area 94.
  • hatched area extends from about 200 mm to about 800 mm in front of window plate 26 but, as indicated above, longer or shorter detection fields are envisaged.
  • beam 90 transmitted by LED 86 is switched or modulated in a particular manner and the IR radiation received by LED 84 along field of view 92 is synchronously detected in a manner to be selective of reflections from beam 90.
  • the signal for effecting the modulated of transmitting LED 86 and the synchronous detection of IR radiation received by receiving LED 84 are effected by microcontroller 64 and associated components in a manner known in the art.
  • switch assembly 10 of the first example does not need to be wall-mounted, though that will be most common. Assembly 10 can be mounted on a standard or reading lamp, or on any other electrical appliance, at any angle desired. It may even be ceiling or floor mounted. Thus axis y does not need to be horizontal and can generally be described as being orthogonal to and roughly central of the front of housing assembly 12, window plate 26 and/ or the open front plane of box-like molding 16. Similarly, the first and second acute angles mentioned above are measured with respect to axis y rather than to the horizontal plane.
  • FIGs 4A and 4B are exploded views of the proximity switch assembly 10 of Figures 1- 3 respectively showing housing 16 mounted horizontally and vertically in hole 96 cut in a drywall 97 and fitted with a standard mounting plate 98, it being assumed that switch assembly 10 is replacing old horizontally and vertically mounted conventional switches (not shown).
  • the rotation of circuit board 54 in housing molding 16 being clearly seen by a comparison of Figures 4A and 4B.
  • window-plate 26 of Figure 4A differs from window-plate 26a of Figure 4B in that side clips 82 are arranged orthogonally to IR window 40 in Figure 4A but clips 82a are in line with window 40 in Figure 4B.
  • elongate cutout 44 is orthogonal to the longer dimension of faceplate 14 of Figure 4A but cutout 44a is in-line in faceplate 14a of Figure 4B.
  • the location of visual indicator window 46a on faceplate 14a is different to window 46 on faceplate 14.
  • housing molding 16 can be made with sockets for clips 82 (or slight modifications thereof) on all four sides. This would allow a window-plate to be rotated with respect to housing 16 like the circuit board 54 before being clipped into place. It is also envisaged that the need for two different faceplates 14 could be avoided by (i) making cutout 44 on faceplate 14 and IR window protrusion 40 on window-plate 26 of matching cruciform shape and (ii) by fitting two visible window plugs 41 into window-plate 26 and forming two corresponding cutouts 46 for them in the modified faceplate.
  • window-plate then does not need to be rotated with respect to housing 16.
  • window-plug (or plugs) 41 in window-plate 26 can be flush with the outer face of the window-plate and faceplate 14 can be made of translucent plastic so that the entire faceplate glows with the colors transmitted through the visible window plug(s) indicator LEDs 66 or 68.
  • faceplate 14 may glow pink or blue depending upon the status of the switch.
  • switch assembly 10 The basic circuit diagram of switch assembly 10 is indicated in Figure 5, the circuit including an on-board AC to DC converter and power-supply 62 that supplies power to micro-controller 64.
  • micro-controller 64 sends a 30 kHz pulsed signal 100 to transmitter LED 86 and receives an electronic output signal 102 from receiver LED 84. If the received signal is also pulsed at 30 k Hz, it is recognized by controller 64 as indicative of an object such as a hand in activation zone 94 and controller 64 then determines the appropriate states of multicolor indicator LEDs 66 and 68, and, the appropriate output to relay 60 (via opto-coupler 61, not shown in Figure 5). When energized, relay 60 connects active input line 28 to load line 32 to power room lighting 104.
  • Figure 6 is a flow chart illustrating one of the many logic programs that can be loaded into controller 62. While relay 60 is not energized (and light 104 is off), blue LED 68 is energized to make clear window 41 glow blue, red LED 66 not being energized. If a 30 k Hz signal [IR RX] is detected on output 102 of IR receiver LED 384 while light 68 is off, the received pulses of output 102 are matched twice in succession to ensure that they are the same as that of the transmitter. This discriminates over IR signals from other sources. If the correct pulse shape is detected, controller 64 interprets the signal as an instruction to turn light 104 on, whereupon red LED 66 is operated and blue LED 68 is turned off. This causes clear window 41 to glow red or pink.
  • IR RX 30 k Hz signal
  • controller 64 interprets the signal as an instruction to turn light 104 off.
  • Red LED 66 is switched off and, after a 20 second time delay (to allow a person to get to bed or exit the room), relay 60 is de-energized to turn off light 104 and to re-energize blue LED 68.

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  • Switch Cases, Indication, And Locking (AREA)

Abstract

L'invention concerne un ensemble d'interrupteur d'éclairage télécommandé (10, figure 2) qui fonctionne par ondes manuelles et qui peut être simplement substitué par des interrupteurs d'éclairage mécaniques traditionnels montés à des parois utilisés dans un environnement domestique. Cet ensemble d'interrupteur d'éclairage comprend un ensemble de logement (12) et un cadran, ledit ensemble de logement comportant un moulage en forme de boîte de section carrée (16) qui abrite une carte de circuit amovible carrée (54) dotée d'un transducteur IR de transmission situé dans un tube de collimation dirigé vers le haut (58) et d'un transducteur IR de réception situé dans un tube de collimation dirigé vers le bas (56). Une plaque de fenêtre (26) est découpée sur la partie avant du moulage en forme de boîte (16) de manière à engendrer une fenêtre IR plus grande (40) et une fenêtre visible plus petite (41). Un transducteur IR de réception est connecté à un micro-contrôleur (64) qui permet d'énergiser un relais (60) par le biais d'un optocoupleur (61) de façon à commuter des lumières ou d'autres dispositifs, suite à la détection d'impulsions codées transmises par le transducteur IR de transmission.
PCT/AU2004/000742 2003-06-04 2004-06-04 Interrupteur telecommande Ceased WO2004109920A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2003902783A AU2003902783A0 (en) 2003-06-04 2003-06-04 Remote-controlled light switch
AU2003902783 2003-06-04

Publications (1)

Publication Number Publication Date
WO2004109920A1 true WO2004109920A1 (fr) 2004-12-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2004/000742 Ceased WO2004109920A1 (fr) 2003-06-04 2004-06-04 Interrupteur telecommande

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AU (1) AU2003902783A0 (fr)
WO (1) WO2004109920A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1672796A3 (fr) * 2004-12-14 2007-03-14 Sen-Tien Shih Commutateur optique de proximité
GB2479201A (en) * 2010-04-01 2011-10-05 Cp Electronics Ltd Lighting control having presence detector and proximity sensor
GB2532479A (en) * 2014-11-20 2016-05-25 Aqualisa Products Ltd Switch
CN113944082A (zh) * 2021-10-27 2022-01-18 河南翔瑞路桥工程有限公司 一种公路建筑用路面整平装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305006A (en) * 1978-10-30 1981-12-08 Walthall Michael S Electrical switch
US5786644A (en) * 1995-07-03 1998-07-28 Leviton Manufacturing Co., Inc. Two wire PIR occupancy sensor utilizing a rechargeable energy storage device
WO1998037631A1 (fr) * 1997-02-21 1998-08-27 Newtronics Pty. Ltd. Capteurs de rayon infrarouge
EP0813075B1 (fr) * 1996-06-12 1998-11-11 Inter Company Computer, Engineering, Design Services, in het kort : " Concept Design", naamloze vennootschap Dispositif de détection de proximité
US6181095B1 (en) * 1997-06-30 2001-01-30 Kds Controls, Inc. Garage door opener
US6275163B1 (en) * 1998-08-24 2001-08-14 Leviton Manufacturing Co., Inc. Automatic switch dimmer device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305006A (en) * 1978-10-30 1981-12-08 Walthall Michael S Electrical switch
US5786644A (en) * 1995-07-03 1998-07-28 Leviton Manufacturing Co., Inc. Two wire PIR occupancy sensor utilizing a rechargeable energy storage device
EP0813075B1 (fr) * 1996-06-12 1998-11-11 Inter Company Computer, Engineering, Design Services, in het kort : " Concept Design", naamloze vennootschap Dispositif de détection de proximité
WO1998037631A1 (fr) * 1997-02-21 1998-08-27 Newtronics Pty. Ltd. Capteurs de rayon infrarouge
US6181095B1 (en) * 1997-06-30 2001-01-30 Kds Controls, Inc. Garage door opener
US6275163B1 (en) * 1998-08-24 2001-08-14 Leviton Manufacturing Co., Inc. Automatic switch dimmer device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1672796A3 (fr) * 2004-12-14 2007-03-14 Sen-Tien Shih Commutateur optique de proximité
GB2479201A (en) * 2010-04-01 2011-10-05 Cp Electronics Ltd Lighting control having presence detector and proximity sensor
GB2479439A (en) * 2010-04-01 2011-10-12 Cp Electronics Ltd Infra red proximity sensor having shield to prevent leakage of light
WO2011121364A3 (fr) * 2010-04-01 2011-12-29 Cp Electronics Limited Dispositif pour commander une charge électrique
GB2479201B (en) * 2010-04-01 2013-04-10 Cp Electronics Ltd A device for controlling an electrical load
GB2479439B (en) * 2010-04-01 2014-01-15 Cp Electronics Ltd A device for controlling an electrical load
GB2532479A (en) * 2014-11-20 2016-05-25 Aqualisa Products Ltd Switch
GB2534975A (en) * 2014-11-20 2016-08-10 Aqualisa Products Ltd Switch
CN113944082A (zh) * 2021-10-27 2022-01-18 河南翔瑞路桥工程有限公司 一种公路建筑用路面整平装置

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