EP0263833A1 - Magnetic transmission - Google Patents
Magnetic transmissionInfo
- Publication number
- EP0263833A1 EP0263833A1 EP87900226A EP87900226A EP0263833A1 EP 0263833 A1 EP0263833 A1 EP 0263833A1 EP 87900226 A EP87900226 A EP 87900226A EP 87900226 A EP87900226 A EP 87900226A EP 0263833 A1 EP0263833 A1 EP 0263833A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic field
- data
- transmitted
- transmitting
- decoding
- 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- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000005355 Hall effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
Definitions
- This invention relates to a data transmission system.
- the invention relates to magnetic induction transmission, over a distance, of data such as voice, measurements ⁇ computer bytes, video, etc, that is any analogue or digital signals that can be processed onto a modulated carrier or; in such configuration that it can be Q transmitted and recognised by the systems using this invention.
- a data transmission system comprising means for generating a S magnetic field means -for effecting variations to said magnetic field in correspondence with data to be transmitted, means for transmitting said varied magnetic field, and means for receiving and decoding said transmitted magnetic field in order to retrieve the transmitted data.
- a method of transmitting data comprising the steps of generating a magnetic field; varying said magnetic field in correspondence with data to be transmitted, transmitting 5 said varied magnetic field and receiving and decoding said transmitted magnetic field in order to retrieve the carried data.
- the invention involves the transmission of signals by generation of a recognisable magnetic field (preferably by modulation) and reception of the signal by measurements of the transmitted magnetic field as a vehicle for transfer of information.
- a data transmission system comprises a magnetic field transmitter 1 which receives data from a number of data collection devices 2 which in the particular application illustrated could be temperature, pressure, flow rate; etc.
- the transmitter 1 is located in a bore hole 20 and encodes the data transmitting it through the creation of a modulated magnetic field, which is received by a receiver 10 located, for example, on the sea ⁇ bed.
- the receiver may be a receiver 11 located on a drilling platform, a receiver 12 located on a floating vessel or a receiver 13 located on-shore.
- the generation of the transmitted magnetic field may be provided, for example; by electrical coil induction within a body of matter; the reception being made by measurements with sensors responding to magnetic field variations such as magnetometers, Hall effect generators, fluxgates, induction coils, etc.
- this invention has a large variety of applications making use of signal differentiation by frequency or amplitude modulation; phase shift or rotation, time delay, etc.
- the invention finds applications in the transmission of signals in environments not easily permeable to, or saturated by, electro-magnetic waves; such as environments buried within or shadowed by a large land mass, concrete shelters or other constructions; under water, etc.
- the invention is particularly useful for the transmission of data and information collected deep inside hydrocarbon or geothermic wells, where pressures, temperatures and flows are recorded for good management of the reservoirs; inside mines and natural caves for communication and safety; underwater for communication, navigation and data gathering between surface and submerged boats, beacons, automatic recording stations, remotely operated wellheads, etc. all without the use of hard wired links between the transmitter and receivers.
- the described mode of transmission is not limited to earth bound applicatons, and the invention has application in space or within or outside of anybody of matter, provided that this body of matter does not, by the physics of its properties, attenuate too quickly the magnetic field (principal mode of transfer of information) generated for the signal transmission.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Système et procédé de transmission de données utilisant un champ magnétique. Le système comprend des moyens permettant de produire un champ magnétique et de le faire varier en fonction des données à transmettre. Le champ magnétique modifié est ensuite transmis, reçu et décodé pour extraire les données qu'il véhicule.System and method for transmitting data using a magnetic field. The system includes means for producing a magnetic field and varying it according to the data to be transmitted. The modified magnetic field is then transmitted, received and decoded to extract the data it carries.
Description
"Magnetic Transmission"
This invention relates to a data transmission system.
5 More particularly, the invention relates to magnetic induction transmission, over a distance, of data such as voice, measurements^ computer bytes, video, etc, that is any analogue or digital signals that can be processed onto a modulated carrier or; in such configuration that it can be Q transmitted and recognised by the systems using this invention.
According to the present invention there is provided a data transmission system comprising means for generating a S magnetic field means -for effecting variations to said magnetic field in correspondence with data to be transmitted, means for transmitting said varied magnetic field, and means for receiving and decoding said transmitted magnetic field in order to retrieve the transmitted data. D
Further according to the present invention there is provided a method of transmitting data comprising the steps of generating a magnetic field; varying said magnetic field in correspondence with data to be transmitted, transmitting 5 said varied magnetic field and receiving and decoding said
transmitted magnetic field in order to retrieve the carried data.
Thus, the invention involves the transmission of signals by generation of a recognisable magnetic field (preferably by modulation) and reception of the signal by measurements of the transmitted magnetic field as a vehicle for transfer of information.
' Embodiments of the present invention will now be described, by way of example, with reference to the attached drawing which shows one implementation of the system of the invention.
With reference to the drawing, a data transmission system comprises a magnetic field transmitter 1 which receives data from a number of data collection devices 2 which in the particular application illustrated could be temperature, pressure, flow rate; etc. The transmitter 1 is located in a bore hole 20 and encodes the data transmitting it through the creation of a modulated magnetic field, which is received by a receiver 10 located, for example, on the sea¬ bed.
Alternatively, the receiver may be a receiver 11 located on a drilling platform, a receiver 12 located on a floating vessel or a receiver 13 located on-shore.
The generation of the transmitted magnetic field may be provided, for example; by electrical coil induction within a body of matter; the reception being made by measurements with sensors responding to magnetic field variations such as magnetometers, Hall effect generators, fluxgates, induction coils, etc.
As in the case of data and signals transmitted by means of electro-magnetic carriers, this invention has a large variety of applications making use of signal differentiation by frequency or amplitude modulation; phase shift or rotation, time delay, etc.
The invention finds applications in the transmission of signals in environments not easily permeable to, or saturated by, electro-magnetic waves; such as environments buried within or shadowed by a large land mass, concrete shelters or other constructions; under water, etc.
The invention is particularly useful for the transmission of data and information collected deep inside hydrocarbon or geothermic wells, where pressures, temperatures and flows are recorded for good management of the reservoirs; inside mines and natural caves for communication and safety; underwater for communication, navigation and data gathering between surface and submerged boats, beacons, automatic recording stations, remotely operated wellheads, etc. all without the use of hard wired links between the transmitter and receivers.
The described mode of transmission is not limited to earth bound applicatons, and the invention has application in space or within or outside of anybody of matter, provided that this body of matter does not, by the physics of its properties, attenuate too quickly the magnetic field (principal mode of transfer of information) generated for the signal transmission.
Modifications and improvements may be incorporated without departing from the scope of the invention.
Claims
1. A data transmission system comprising means for generating a magnetic field, means for effecting variations 5 to said magnetic field in correspondence with data to be transmitted, means for transmitting said varied magnetic field, and means for receiving and decoding said transmitted magnetic field in order to retrieve the transmitted data.
10 2. A system as claimed in Claim 1, wherein said means for generating a magnetic field comprises electrical coil induction within a body of matter.
3. A system as claimed in either preceding claim, wherein 15. said variation in said magnetic field comprises frequency modulation, amplitude modulation, phase shift, phase rotation, or time delay.
4. A system as claimed in any preceding claim, wherein said 20 means for receiving and decoding said transmitted magnetic field is responsive to variations in said field.
5. A data transmission system substantially as hereinbefore described with reference to the accompanying drawing.
25_
6. A method of transmitting data comprising the steps of generating a magnetic field, varying said magnetic field in correspondence with data to be transmitted, transmitting said varied magnetic field and receiving and decoding said
30 transmitted magnetic field in order to retrieve the carried data.
7. A method of transmitting data substantially as hereinbefore described with reference to the accompanying
353 drawing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB858531368A GB8531368D0 (en) | 1985-12-20 | 1985-12-20 | Data transmission system |
| GB8531368 | 1985-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0263833A1 true EP0263833A1 (en) | 1988-04-20 |
Family
ID=10590044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87900226A Withdrawn EP0263833A1 (en) | 1985-12-20 | 1986-12-22 | Magnetic transmission |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0263833A1 (en) |
| AU (1) | AU6778887A (en) |
| GB (1) | GB8531368D0 (en) |
| WO (1) | WO1987004028A1 (en) |
Families Citing this family (58)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2292869B (en) * | 1994-09-03 | 1999-01-06 | Integrated Drilling Serv Ltd | A well data telemetry system |
| GB9417719D0 (en) * | 1994-09-03 | 1994-10-19 | Integrated Drilling Serv Ltd | A well data telemetry system |
| US6057784A (en) * | 1997-09-02 | 2000-05-02 | Schlumberger Technology Corporatioin | Apparatus and system for making at-bit measurements while drilling |
| US6188222B1 (en) | 1997-09-19 | 2001-02-13 | Schlumberger Technology Corporation | Method and apparatus for measuring resistivity of an earth formation |
| GB2377131B (en) * | 2001-04-23 | 2006-01-25 | Schlumberger Holdings | Subsea communication systems and techniques |
| US8131213B2 (en) | 2005-06-15 | 2012-03-06 | Wfs Technologies Ltd. | Sea vessel tagging apparatus and system |
| US10735107B2 (en) | 2005-06-15 | 2020-08-04 | Wfs Technologies Ltd. | Communications system |
| US7711322B2 (en) | 2005-06-15 | 2010-05-04 | Wireless Fibre Systems | Underwater communications system and method |
| US8305227B2 (en) | 2005-06-15 | 2012-11-06 | Wfs Technologies Ltd. | Wireless auxiliary monitoring and control system for an underwater installation |
| US11750300B2 (en) | 2005-06-15 | 2023-09-05 | CSignum Ltd. | Mobile device underwater communications system and method |
| GB201303328D0 (en) | 2013-02-25 | 2013-04-10 | Wfs Technologies Ltd | Underwater communication network |
| US9824597B2 (en) | 2015-01-28 | 2017-11-21 | Lockheed Martin Corporation | Magnetic navigation methods and systems utilizing power grid and communication network |
| US9853837B2 (en) | 2014-04-07 | 2017-12-26 | Lockheed Martin Corporation | High bit-rate magnetic communication |
| US9638821B2 (en) | 2014-03-20 | 2017-05-02 | Lockheed Martin Corporation | Mapping and monitoring of hydraulic fractures using vector magnetometers |
| US9614589B1 (en) | 2015-12-01 | 2017-04-04 | Lockheed Martin Corporation | Communication via a magnio |
| US9817081B2 (en) | 2016-01-21 | 2017-11-14 | Lockheed Martin Corporation | Magnetometer with light pipe |
| US9590601B2 (en) | 2014-04-07 | 2017-03-07 | Lockheed Martin Corporation | Energy efficient controlled magnetic field generator circuit |
| US9541610B2 (en) | 2015-02-04 | 2017-01-10 | Lockheed Martin Corporation | Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system |
| US9910104B2 (en) | 2015-01-23 | 2018-03-06 | Lockheed Martin Corporation | DNV magnetic field detector |
| US10168393B2 (en) | 2014-09-25 | 2019-01-01 | Lockheed Martin Corporation | Micro-vacancy center device |
| US9829545B2 (en) | 2015-11-20 | 2017-11-28 | Lockheed Martin Corporation | Apparatus and method for hypersensitivity detection of magnetic field |
| US9910105B2 (en) | 2014-03-20 | 2018-03-06 | Lockheed Martin Corporation | DNV magnetic field detector |
| US9557391B2 (en) | 2015-01-23 | 2017-01-31 | Lockheed Martin Corporation | Apparatus and method for high sensitivity magnetometry measurement and signal processing in a magnetic detection system |
| US10338162B2 (en) | 2016-01-21 | 2019-07-02 | Lockheed Martin Corporation | AC vector magnetic anomaly detection with diamond nitrogen vacancies |
| US9823313B2 (en) | 2016-01-21 | 2017-11-21 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with circuitry on diamond |
| WO2016118791A1 (en) * | 2015-01-23 | 2016-07-28 | Lockheed Martin Corporation | Dnv magnetic field detector |
| BR112017016261A2 (en) | 2015-01-28 | 2018-03-27 | Lockheed Martin Corporation | in situ power load |
| GB2550809A (en) | 2015-02-04 | 2017-11-29 | Lockheed Corp | Apparatus and method for estimating absolute axes' orientations for a magnetic detection system |
| WO2017078766A1 (en) | 2015-11-04 | 2017-05-11 | Lockheed Martin Corporation | Magnetic band-pass filter |
| WO2017087013A1 (en) | 2015-11-20 | 2017-05-26 | Lockheed Martin Corporation | Apparatus and method for closed loop processing for a magnetic detection system |
| WO2017123261A1 (en) | 2016-01-12 | 2017-07-20 | Lockheed Martin Corporation | Defect detector for conductive materials |
| WO2017127093A1 (en) * | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Hydrophone |
| WO2017127090A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control |
| WO2017127096A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with dual rf sources |
| GB2562958A (en) | 2016-01-21 | 2018-11-28 | Lockheed Corp | Magnetometer with a light emitting diode |
| AU2016388316A1 (en) | 2016-01-21 | 2018-09-06 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with common RF and magnetic fields generator |
| WO2017127098A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensed ferro-fluid hydrophone |
| US10527746B2 (en) | 2016-05-31 | 2020-01-07 | Lockheed Martin Corporation | Array of UAVS with magnetometers |
| US10338163B2 (en) | 2016-07-11 | 2019-07-02 | Lockheed Martin Corporation | Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation |
| US10677953B2 (en) | 2016-05-31 | 2020-06-09 | Lockheed Martin Corporation | Magneto-optical detecting apparatus and methods |
| US10330744B2 (en) | 2017-03-24 | 2019-06-25 | Lockheed Martin Corporation | Magnetometer with a waveguide |
| US10274550B2 (en) | 2017-03-24 | 2019-04-30 | Lockheed Martin Corporation | High speed sequential cancellation for pulsed mode |
| US10571530B2 (en) | 2016-05-31 | 2020-02-25 | Lockheed Martin Corporation | Buoy array of magnetometers |
| US10345396B2 (en) | 2016-05-31 | 2019-07-09 | Lockheed Martin Corporation | Selected volume continuous illumination magnetometer |
| US20170343621A1 (en) | 2016-05-31 | 2017-11-30 | Lockheed Martin Corporation | Magneto-optical defect center magnetometer |
| US10359479B2 (en) | 2017-02-20 | 2019-07-23 | Lockheed Martin Corporation | Efficient thermal drift compensation in DNV vector magnetometry |
| US10371765B2 (en) | 2016-07-11 | 2019-08-06 | Lockheed Martin Corporation | Geolocation of magnetic sources using vector magnetometer sensors |
| US10281550B2 (en) | 2016-11-14 | 2019-05-07 | Lockheed Martin Corporation | Spin relaxometry based molecular sequencing |
| US10408890B2 (en) | 2017-03-24 | 2019-09-10 | Lockheed Martin Corporation | Pulsed RF methods for optimization of CW measurements |
| US10345395B2 (en) | 2016-12-12 | 2019-07-09 | Lockheed Martin Corporation | Vector magnetometry localization of subsurface liquids |
| US10145910B2 (en) | 2017-03-24 | 2018-12-04 | Lockheed Martin Corporation | Photodetector circuit saturation mitigation for magneto-optical high intensity pulses |
| US10228429B2 (en) | 2017-03-24 | 2019-03-12 | Lockheed Martin Corporation | Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing |
| US10317279B2 (en) | 2016-05-31 | 2019-06-11 | Lockheed Martin Corporation | Optical filtration system for diamond material with nitrogen vacancy centers |
| US10459041B2 (en) | 2017-03-24 | 2019-10-29 | Lockheed Martin Corporation | Magnetic detection system with highly integrated diamond nitrogen vacancy sensor |
| US10371760B2 (en) | 2017-03-24 | 2019-08-06 | Lockheed Martin Corporation | Standing-wave radio frequency exciter |
| US10338164B2 (en) | 2017-03-24 | 2019-07-02 | Lockheed Martin Corporation | Vacancy center material with highly efficient RF excitation |
| US10379174B2 (en) | 2017-03-24 | 2019-08-13 | Lockheed Martin Corporation | Bias magnet array for magnetometer |
| US10558260B2 (en) | 2017-12-15 | 2020-02-11 | Microsoft Technology Licensing, Llc | Detecting the pose of an out-of-range controller |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967201A (en) * | 1974-01-25 | 1976-06-29 | Develco, Inc. | Wireless subterranean signaling method |
| US4363137A (en) * | 1979-07-23 | 1982-12-07 | Occidental Research Corporation | Wireless telemetry with magnetic induction field |
| EP0050523A3 (en) * | 1980-10-20 | 1983-06-22 | Honeywell Information Systems Inc. | Electromagnetic transmission using a curl-free magnetic vector potential field |
-
1985
- 1985-12-20 GB GB858531368A patent/GB8531368D0/en active Pending
-
1986
- 1986-12-22 EP EP87900226A patent/EP0263833A1/en not_active Withdrawn
- 1986-12-22 AU AU67788/87A patent/AU6778887A/en not_active Abandoned
- 1986-12-22 WO PCT/GB1986/000787 patent/WO1987004028A1/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8704028A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8531368D0 (en) | 1986-02-05 |
| AU6778887A (en) | 1987-07-15 |
| WO1987004028A1 (en) | 1987-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19870922 |