GB2202414A - Transmission of power and/or data - Google Patents

Transmission of power and/or data Download PDF

Info

Publication number
GB2202414A
GB2202414A GB08705583A GB8705583A GB2202414A GB 2202414 A GB2202414 A GB 2202414A GB 08705583 A GB08705583 A GB 08705583A GB 8705583 A GB8705583 A GB 8705583A GB 2202414 A GB2202414 A GB 2202414A
Authority
GB
United Kingdom
Prior art keywords
panel
bulkhead
lamp unit
data
coil
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.)
Pending
Application number
GB08705583A
Other versions
GB8705583D0 (en
Inventor
Phillip Malcolm Logan
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.)
Oxley Developments Co Ltd
Original Assignee
Oxley Developments 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 Oxley Developments Co Ltd filed Critical Oxley Developments Co Ltd
Priority to GB08705583A priority Critical patent/GB2202414A/en
Publication of GB8705583D0 publication Critical patent/GB8705583D0/en
Publication of GB2202414A publication Critical patent/GB2202414A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

A system in which power or data is transmitted across a panel/bulkhead (14) by means of a low frequency magnetic coupling between a pair of transmission and receiving coils (12, 16) disposed on the two sides of the panel/bulkhead (14), respectively. The system can include a panel mounting lamp unit (22) comprising the receiving coil (16) in series with a diode (18) and an LED (20), the latter components being mounted together in or on a common housing which is adapted to be fitted to the panel/bulkhead (14) at a position opposite to the transmission coil (12). Data from a computer (28, Fig 5) may be coupled to a transmitter (38) via a modulator (32) for reception by a receiver (42). <IMAGE>

Description

Transmission of power and/or data The present invention is concerned with a means of transmitting power and/or data through a solid member, such as an instrument panel or bulkhead.
There exist many engineering situations where it would be very advantageous if power and/or data could be transmitted locally-between two adjacent positions which are separated by a solid wall, such as a metal plate forming an instrument panel or bulkhead. It is, of course, known in principle to transmit power and data using radio wav.es. However, where a number of transmissions are to be made in closely adjacent positions, radio transmissions have the disadvantage that interference between separate transmission is virtually impossible to avoid with very costly and complex filtering circuitry.
It is one object of the present invention to provide a system which avoids the above-discussed disadvantage of radio waves and which enables large numbers of individual transmitter/receiver pairs to be positioned in relatively close proximity to each other without mutual interference between adjacent channels.
It is another object of the present invention to provide a panel mountable indicator lamp which can be energised.from within a housing structure without requiring any wiring connection through the housing wall.
In accordance with the present invention in its broadest aspect, there. is provided a system in which power or data is transmitted across a panel/bulkhead by means of a low frequency magnetic coupling between a pair of transmission and receiving coils disposed on the two sides of the panel/bulkhead, respectively.
Preferably, the coils are iron-cored so as to produce a concentrated magnetic field. A typical operating frequency is of the order of 200 Hz.
In one type of embodiment, the receiving coil is mounted in series with a rectifier and an LED lamp to form a lamp unit. Preferably, the latter components are encapsulated to form said lamp unit.
Such a lamp unit can be mounted on a panel/bulkhead by any convenient means, e.g. by adhesive or by the use of a blind, screw-threaded hole in the panel/ bulkhead.
In accordance with a second aspect of this invention, there is provided a panel mounting lamp unit comprising a magnetic pick-up coil in series with a diode and an LED, the latter components being mounted together in or on a common housing which is adapted to be fitted to a panel/bulkhead at a position opposite to a magnetic transmission coil disposed on the other side of the panel/bulkhead and capable of emitting a lowfrequency magnetic field.
By arranging fcr the lamp unit to be fitted to the panel/bulkhead without penetrating right through iti the lamp unit can be powered and controlled from the transmission coil side of the panel/bulkhead without requiring any mechanical through-connection.
The invention is described further hereinafter, by way of example only, with reference to the accompanying drawings, in which: Fig. 1 is a circuit diagram of a basic arrangement in accordance with the present invention; Fig. 2 is a circuit diagram of a second arrangement in accordance with the present invention for transmitting power through a panel; Figs. 3 and 4 show diagrammatically two-possible forms of panel-mounted indicator lamps incorporating the present invention and Fig. 5 is a block circuit diagram of an arrangement in accordance with the present invention for the transmission of both power and data through a panel or bulkhead.
Referring first to Fig. 1, there is shown an osullator 10 energising a transmitter coil 12 to create an alternating electromagnetic flux. This flux penetrates through a panel/bulkhead 14 and induces an E.M.F. in a receiver coil i6.
The transmitter current may be modulated in order to convey information to a demodulator in the receiver.
Aiternatively, a basic sinusoidal transmitter could convey power to the receiver, which may be rectified (see below).
Such systems can operate with a wide variety of paneljbulE;head materials. For example, aluminium and its alloys, plastics and stainless steel are all suitable.
Ferrous materials will also function, although with limitations on maximum panel thickness.
Panel mounted components, such as indicator lamps, of conventional design require a through mounting hole which must then be sealed to prevent the ingress of dust, liquids, gasses etc. In some instances the seal must be hermetic, which may be difficult to maintain in the event of bulb changing, rewiring etc.
In the arrangement of Fig. 2, the receiver includes a diode 18 in series with an indicator LED 20 and the receiver coil 16. The elements 16, IS and 20 can be encapsulated to form a unitary component 22 which requires no through mounting hole. Panel sealing integrity is therefore maintained even if any of the elements of the component 22 or the component 22 itself, have to be changed. A zero leakage characteristic for the housing is therefore inherent in this system. The transmitter components can be similarly encapsulated in a transmitter unit 24.
The receiver unit 22 can be mounted by any convenient means, two examples being shown in Figures 3 and 4. In the example of Fig. 3, the transmitter and lamp/receiver units 24, 22 are mounted on the panel/ bulkhead 14 by means of a suitable adhesive. In the example of Fig. 1, the lamp,'receiver unit 22 is mounted in a blind threaded hole 26 and the transmitter unit 24 is mounted on a printed circuit board 25. Typical panel thicknesses may be in the range of 3mm to 6mm but the invention is not limited to this range.
Using'the aforegoing system, it will be appreciated that the following advantages can be obtained 1. Lamps may be replaced (either for repair or colour change) without breaking the panel seal. This can be of particular use in applications where the equipment is exposed to hazardous materials, e.g. in the chemical industry.
2. A lamp/receiver unit 22 can be used to interrogate an instrument's output state and then removed for security reasons.
3. Panel drilling is unnecessary and allows a nanufacturer to change panel designs by moving the mounting position of lamps.
In further applications, data can be superimposed on a carrier and transmitted through a panel. This possiblity is illustrated in Fig. 5 where a data system 28, such as a computer, supplies a control signal on a line 30 to a modulator 32 in which a carrier signal (e.g. 200 Hz), provided by an oscillator 34 on a line 36, can be modified to form a modulated signal to a transmitter 38. Data superimposed on the carrier can thereby be transmitted through the panel 40. Carrier can then be modulated to power and control a receiver unit. Two-way transmission is possible with such a system.
It is preferred to use iron-cored transmission and pick-up coils 12, 16 in the present system so as to produce a concentrated magnetic field. Due to the concentrated and localised nature of the field, indicator lamps can be densely packed without interference problems arising since cross-talk between.
lamps sharing the same panel will not provide sufficient coil voltage to overcome the LED forward voltage of other receiver devices.
Preferably, the transmitted electromagnetic signal is of sinusoidal form but any other suitable waveshape may be used within the ambit of the invention.

Claims (12)

1. A system in which power or data is transmitted across a panel/bulkhead by means of a low frequency magnetic coupling between a pair of transmission and receiving coils disposed on the two sides of the panel/bulkhead, respectively.
2. A system as claimed in claim 1, wherein the coils are iron-cored so as to produce a concentrated magnetic field.
3. A system as claimed in claim 1 or 2, wherein the receiving coil is mounted in series with a rectifier and an LED lamp to form a lamp unit.
4. A system as claimed in claim 3, wherein the receiving coil, the rectifier and the LED are encapsulated to form said lamp unit.
5. A system as claimed in claim 3 or 4, wherein the lamp unit is adapted to be mounted on the panel/ bulkhead by an adhesive or by the use of a blind, screw-threaded recess in the panel/bulkhead.
6. A system as claimed in any of claims 1 to 5, wherein, in order to transmit data through the panel/ bulkhead, the low frequency electromagnetic field transmitted by the transmission coil is modulated by a data signal, the corresponding signal generated in the receiving coil being correspondingly demodulated to recover the data.
7. A system as claimed in any of claims 1 to 5, wherein the transmission coil produces an alternating or electromagnetic field having a frequency of the order of 200Hz.
8. A panel mounting lamp unit comprising a magnetic pick-up coil in series with a diode and an LED, the latter components being mounted together in or on a common housing which is adapted to be fitted to a panel/bulkhead at a position opposite to a magnetic transmission coil disposed on the other side of the panel/bulkhead and capable of emitting a low-frequency magnetic field.
9. A panel mounting lamp unit as claimed in claim 6, wherein the pick-up coil, the diode and the LED are encapsulated to form said lamp unit.
10. A panel mounting lamp unit as claimed in claim 6 or 7, wherein the lamp unit is adapted to be mounted on the panel/bulkhead by an adhesive or by the use of a blind, screw-threaded recess in the panel/bulkhead.
11. A system for transmitting power or data across a panel/bulkhead, substantially as hereinbefore described with reference to the accompanying drawings.
12. A panel mounting lamp unit substantially as hereinbefore described with reference to and as illustrated in Fig. 2, 3 or 4 of the accompanying drawings.
GB08705583A 1987-03-10 1987-03-10 Transmission of power and/or data Pending GB2202414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08705583A GB2202414A (en) 1987-03-10 1987-03-10 Transmission of power and/or data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08705583A GB2202414A (en) 1987-03-10 1987-03-10 Transmission of power and/or data

Publications (2)

Publication Number Publication Date
GB8705583D0 GB8705583D0 (en) 1987-04-15
GB2202414A true GB2202414A (en) 1988-09-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB08705583A Pending GB2202414A (en) 1987-03-10 1987-03-10 Transmission of power and/or data

Country Status (1)

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GB (1) GB2202414A (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238930A (en) * 1989-11-23 1991-06-12 Woodbridge Marketing Limited Transmitting signal from sensor to receiver by inductive coupling
GB2262634A (en) * 1991-12-18 1993-06-23 Apple Computer Inductive power and signal connection.
US5325046A (en) * 1991-12-18 1994-06-28 Apple Computer, Inc. Inductive wireless data connection
US5396538A (en) * 1991-10-25 1995-03-07 Samsung Electronics Co., Ltd. Contactless digital power transmission and reception system in a radio telephone
GB2295293A (en) * 1994-11-16 1996-05-22 Allan Robert Edward Yapp Communication through a barrier
US5625883A (en) * 1993-12-24 1997-04-29 U.S. Philips Corporation System for wireless information transmission between two different rooms
DE19544474A1 (en) * 1995-11-29 1997-06-05 Abb Patent Gmbh Controlled access to internal building systems
US5736967A (en) * 1993-09-03 1998-04-07 Kayser Ventures, Ltd. Article-information display system using electronically controlled tags
US6181299B1 (en) 1993-09-03 2001-01-30 Display Edge Technology, Ltd. Power and communication system for electronic display tags
US6219529B1 (en) * 1994-07-19 2001-04-17 Seiko Instruments Inc. Wireless communication system using only the magnetic field component
GB2355622A (en) * 1999-07-22 2001-04-25 Jme Ltd Signalling through steel walls
US6266052B1 (en) 1993-09-03 2001-07-24 Display Edge Technology, Ltd. Power and information distribution system for article display or storage areas and related method
EP1986339A1 (en) * 2007-04-25 2008-10-29 Alcatel Lucent Radiofrequency signal repeater device using electromagnetic coupling
DE102008024780A1 (en) * 2008-05-23 2009-11-26 Osram Gesellschaft mit beschränkter Haftung Wireless light source
DE102010029249A1 (en) * 2010-05-25 2011-12-01 Osram Gesellschaft mit beschränkter Haftung Semiconductor lamp and method of operating a semiconductor lamp
GB2485782A (en) * 2010-09-20 2012-05-30 Wfs Technologies Ltd Low frequency electromagnetic signals are passed through a barrier comprising electrically conductive and electrically insulative layers
ITMI20130234A1 (en) * 2013-02-20 2014-08-21 Messersi Packaging Srl ROTARY WRAPPING MACHINE FOR PACKAGING OBJECTS.
AT14261U1 (en) * 2014-01-10 2015-07-15 Tridonic Gmbh & Co Kg Control gear and communication adapter for outdoor use
EP2577835A4 (en) * 2010-06-03 2016-01-06 Powerkiss Oy An arrangement for a charger
US10054302B2 (en) 2014-01-10 2018-08-21 Tridonic Gmbh & Co Kg Operating device and communications adapter for outdoor use
WO2019135061A1 (en) * 2018-01-05 2019-07-11 Airspan Networks Inc. An apparatus and method for facilitating communication between a telecommunications network and a user device within a building
US11284491B2 (en) 2011-12-02 2022-03-22 Lynk Labs, Inc. Color temperature controlled and low THD LED lighting devices and systems and methods of driving the same
US11297705B2 (en) 2007-10-06 2022-04-05 Lynk Labs, Inc. Multi-voltage and multi-brightness LED lighting devices and methods of using same
US11317495B2 (en) 2007-10-06 2022-04-26 Lynk Labs, Inc. LED circuits and assemblies
US11528792B2 (en) 2004-02-25 2022-12-13 Lynk Labs, Inc. High frequency multi-voltage and multi-brightness LED lighting devices
US11566759B2 (en) 2017-08-31 2023-01-31 Lynk Labs, Inc. LED lighting system and installation methods
US11638336B2 (en) 2004-02-25 2023-04-25 Lynk Labs, Inc. AC light emitting diode and AC LED drive methods and apparatus
US11678420B2 (en) 2004-02-25 2023-06-13 Lynk Labs, Inc. LED lighting system
US11953167B2 (en) 2011-08-18 2024-04-09 Lynk Labs, Inc. Devices and systems having AC LED circuits and methods of driving the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778072A (en) * 1954-04-09 1957-07-03 Frank Walter Holland Improvements in electrical table lamps
GB1319412A (en) * 1969-12-17 1973-06-06 Int Standard Electric Corp Inter-compartment coupling device
EP0145430A2 (en) * 1983-12-09 1985-06-19 Cochlear Corporation Signal transmission system
EP0179536A2 (en) * 1984-10-22 1986-04-30 Cochlear Pty., Ltd. Improvements in power transfer for implanted prostheses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778072A (en) * 1954-04-09 1957-07-03 Frank Walter Holland Improvements in electrical table lamps
GB1319412A (en) * 1969-12-17 1973-06-06 Int Standard Electric Corp Inter-compartment coupling device
EP0145430A2 (en) * 1983-12-09 1985-06-19 Cochlear Corporation Signal transmission system
EP0179536A2 (en) * 1984-10-22 1986-04-30 Cochlear Pty., Ltd. Improvements in power transfer for implanted prostheses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A1 84/04212 *

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238930A (en) * 1989-11-23 1991-06-12 Woodbridge Marketing Limited Transmitting signal from sensor to receiver by inductive coupling
US5396538A (en) * 1991-10-25 1995-03-07 Samsung Electronics Co., Ltd. Contactless digital power transmission and reception system in a radio telephone
GB2262634A (en) * 1991-12-18 1993-06-23 Apple Computer Inductive power and signal connection.
US5325046A (en) * 1991-12-18 1994-06-28 Apple Computer, Inc. Inductive wireless data connection
GB2262634B (en) * 1991-12-18 1995-07-12 Apple Computer Power connection scheme
US5455467A (en) * 1991-12-18 1995-10-03 Apple Computer, Inc. Power connection scheme
US6181299B1 (en) 1993-09-03 2001-01-30 Display Edge Technology, Ltd. Power and communication system for electronic display tags
US5736967A (en) * 1993-09-03 1998-04-07 Kayser Ventures, Ltd. Article-information display system using electronically controlled tags
US6266052B1 (en) 1993-09-03 2001-07-24 Display Edge Technology, Ltd. Power and information distribution system for article display or storage areas and related method
US5625883A (en) * 1993-12-24 1997-04-29 U.S. Philips Corporation System for wireless information transmission between two different rooms
US6219529B1 (en) * 1994-07-19 2001-04-17 Seiko Instruments Inc. Wireless communication system using only the magnetic field component
GB2295293A (en) * 1994-11-16 1996-05-22 Allan Robert Edward Yapp Communication through a barrier
DE19544474A1 (en) * 1995-11-29 1997-06-05 Abb Patent Gmbh Controlled access to internal building systems
GB2355622A (en) * 1999-07-22 2001-04-25 Jme Ltd Signalling through steel walls
US11528792B2 (en) 2004-02-25 2022-12-13 Lynk Labs, Inc. High frequency multi-voltage and multi-brightness LED lighting devices
US11638336B2 (en) 2004-02-25 2023-04-25 Lynk Labs, Inc. AC light emitting diode and AC LED drive methods and apparatus
US11678420B2 (en) 2004-02-25 2023-06-13 Lynk Labs, Inc. LED lighting system
EP1986339A1 (en) * 2007-04-25 2008-10-29 Alcatel Lucent Radiofrequency signal repeater device using electromagnetic coupling
US11297705B2 (en) 2007-10-06 2022-04-05 Lynk Labs, Inc. Multi-voltage and multi-brightness LED lighting devices and methods of using same
US11729884B2 (en) 2007-10-06 2023-08-15 Lynk Labs, Inc. LED circuits and assemblies
US11317495B2 (en) 2007-10-06 2022-04-26 Lynk Labs, Inc. LED circuits and assemblies
DE102008024780A1 (en) * 2008-05-23 2009-11-26 Osram Gesellschaft mit beschränkter Haftung Wireless light source
DE102010029249B4 (en) * 2010-05-25 2013-03-28 Osram Gmbh Semiconductor lamp
DE102010029249A1 (en) * 2010-05-25 2011-12-01 Osram Gesellschaft mit beschränkter Haftung Semiconductor lamp and method of operating a semiconductor lamp
EP2577835A4 (en) * 2010-06-03 2016-01-06 Powerkiss Oy An arrangement for a charger
GB2485782A (en) * 2010-09-20 2012-05-30 Wfs Technologies Ltd Low frequency electromagnetic signals are passed through a barrier comprising electrically conductive and electrically insulative layers
US11953167B2 (en) 2011-08-18 2024-04-09 Lynk Labs, Inc. Devices and systems having AC LED circuits and methods of driving the same
US12028947B2 (en) 2011-12-02 2024-07-02 Lynk Labs, Inc. Color temperature controlled and low THD LED lighting devices and systems and methods of driving the same
US11284491B2 (en) 2011-12-02 2022-03-22 Lynk Labs, Inc. Color temperature controlled and low THD LED lighting devices and systems and methods of driving the same
WO2014128587A1 (en) * 2013-02-20 2014-08-28 Messersi' Packaging Srl Rotary wrapping machine for packaging objects
RU2661366C2 (en) * 2013-02-20 2018-07-16 Мессерси' Пэкеджинг Срл Rotary wrapping machine for packaging objects
ITMI20130234A1 (en) * 2013-02-20 2014-08-21 Messersi Packaging Srl ROTARY WRAPPING MACHINE FOR PACKAGING OBJECTS.
US10144542B2 (en) 2013-02-20 2018-12-04 Messersi' Packaging Srl Rotary wrapping machine for packaging objects
AT14261U1 (en) * 2014-01-10 2015-07-15 Tridonic Gmbh & Co Kg Control gear and communication adapter for outdoor use
US10054302B2 (en) 2014-01-10 2018-08-21 Tridonic Gmbh & Co Kg Operating device and communications adapter for outdoor use
US11566759B2 (en) 2017-08-31 2023-01-31 Lynk Labs, Inc. LED lighting system and installation methods
US12104766B2 (en) 2017-08-31 2024-10-01 Lynk Labs, Inc. LED lighting system and installation methods
US10659156B2 (en) 2018-01-05 2020-05-19 Airspan Networks Inc. Apparatus and method for facilitating communication between a telecommunications network and a user device within a building
WO2019135061A1 (en) * 2018-01-05 2019-07-11 Airspan Networks Inc. An apparatus and method for facilitating communication between a telecommunications network and a user device within a building

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Publication number Publication date
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