CN106506049A - A kind of closely Capacitance Coupled wireless digital signal Transmission system and method - Google Patents
A kind of closely Capacitance Coupled wireless digital signal Transmission system and method Download PDFInfo
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- CN106506049A CN106506049A CN201611044520.8A CN201611044520A CN106506049A CN 106506049 A CN106506049 A CN 106506049A CN 201611044520 A CN201611044520 A CN 201611044520A CN 106506049 A CN106506049 A CN 106506049A
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- capacitor plate
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- capacitance coupled
- digital signal
- wireless digital
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- 230000008054 signal transmission Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000005611 electricity Effects 0.000 claims 2
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000002955 isolation Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- H04B5/22—Capacitive 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
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention provides a kind of closely Capacitance Coupled wireless digital signal Transmission system and method, fixation of keeping at a distance between capacitor plate is just and capacitor plate is negative, is placed with encoder, driver, comparator and decoder on circuit board.Encoder generation data signal is transported to capacitor plate through driver and is just gone up, and on capacitor plate is negative is coupled out associated signal, recovers waveform, decoder by comparator and restores data signal.The present invention transmits signal using Capacitance Coupled, and simple structure, high reliability can simply and reliably realize digital data transmission between high-speed rotary part and stationary parts.
Description
Technical field
The invention belongs near field communication technical field, specifically one kind carry out low coverage numeral using Capacitance Coupled
The system and method that signal is wirelessly transferred.
Background technology
In the systems such as Medical Devices, Industry Control, high-accuracy data acquisition, rotary part and stationary parts how is realized
Between data signal simply and reliably to transmit be a difficult problem.
For the digital data transmission between rotating mechanism, existing technology mainly has：Wireless radio transmission mode, brush side
Formula and photoelectric coupling mode transmission means.
Wireless radio transmission mode is fairly simple in theory, but implementation is complex.This transmission means needs height
Frequency carrier wave, needs modulation-demodulation device, and external circuit is complicated, and Electro Magnetic Compatibility is poor, easily by dry during wireless radio transmission
Disturb.
Brush mode is only applicable to rotary system low with rotating speed, that signal voltage is high.
Photoelectric coupling transmission means needs dispensing device and reception device, and needs to seal, and structural volume is larger, at a high speed
During rotation, structural reliability is poor.
The isolation method that commonly uses in the isolation and transmission circuit of data signal has photoelectric coupling isolation, magnetic coupling isolation and electric capacity
Coupling isolation.Capacitive coupling structure is simple, small volume.So far, there is not yet Capacitance Coupled is applied to rotate against machine
The report of digital data transmission between structure.
Content of the invention
It is an object of the invention to provide one kind closely Capacitance Coupled wireless digital signal Transmission system and method, Neng Goujian
Singly, digital data transmission between high-speed rotary part and stationary parts is reliably achieved.
In order to achieve the above object, a technical scheme of the invention is to provide a kind of closely Capacitance Coupled wireless digital
Signal transmission system, comprising：
Capacitor plate is just and capacitor plate is negative, and both keep the space of fixed range, form electric capacity；
Information waiting for transmission is generated binary data by encoder；
Driver, generates waveform corresponding with binary data and just sends to capacitor plate；
Comparator, will be negative for capacitor plate on the signal waveform that is coupled out revert to data signal；
Decoder, is decoded to data signal.
Preferably, the encoder and driver are arranged at first circuit board, and the driver connects capacitance pole by wire
Plate is just；The comparator and decoder are arranged at second circuit board, and the comparator connects capacitor plate by wire and bears.
Preferably, the capacitor plate is just bearing the capacitor's capacity of composition in 1 ~ 2pF with capacitor plate.
Preferably, signal is 200MHz-350MHz by frequency range.
Preferably, the capacitor plate is just negative with capacitor plate, is respectively installed on two parts for rotating against.
Preferably, the capacitor plate is just negative with capacitor plate, is respectively installed on rotary part and stationary parts.
Another technical scheme of the present invention is to provide a kind of closely Capacitance Coupled wireless digital signal transmission method, compiles
Information waiting for transmission is generated binary data by code device, and respective waveforms are being delivered to capacitor plate just through driver；Capacitor plate
The negative space formation electric capacity for just keeping fixed range with the capacitor plate, receives what capacitor plate was just being conveyed by Capacitance Coupled
Signal.
Preferably, comparator will be negative for capacitor plate on the signal waveform that is coupled out revert to data signal, by decoder
Data signal is decoded.
Preferably, the capacitor plate is just negative with capacitor plate, is respectively installed on two parts for rotating against.
Preferably, the capacitor plate is just negative with capacitor plate, is respectively installed on rotary part and stationary parts.
Closely Capacitance Coupled wireless digital signal Transmission system of the present invention and method, are realized using Capacitance Coupled high
Speed rotates against the transmission of digital signal, and compared with prior art, its advantage and beneficial effect are：
1）Simple structure.Compared with the transmission means such as antenna, optical fiber, Capacitance Coupled transmission structure is simple, required peripheral circuit
Simply, capacitor plate and peripheral circuit are may be integrated on circuit board, small volume, low cost；
2）Reliability is high.Antenna transmission mode is compared, Capacitance Coupled transmission reliability is good；Optical Fiber Transmission mode is compared, is revolved at a high speed
Turn to be easily caused optical fiber structure open circuit, and capacitive coupling structure receives high speed Effect of Rotation very little.
Description of the drawings
Fig. 1 is the principle schematic of Capacitance Coupled wireless digital signal Transmission system in the present invention；
Fig. 2 is just negative with the capacitor plate arrangement schematic diagram of capacitor plate in the present invention；
Fig. 3 is the exemplary block diagram of Capacitance Coupled wireless digital signal Transmission system in the present invention.
Specific embodiment
As shown in Fig. 1 ~ Fig. 3, the present invention provides a kind of closely Capacitance Coupled wireless digital signal Transmission system, including：
Encoder 11, driver 12, capacitor plate are positive 21, capacitor plate is minus 22, comparator 31, decoder 32.
Wherein, capacitor plate positive 21 and capacitor plate minus 22 are not in contact with each other, and keep the space of fixed range between the two, can
It is considered as an electric capacity.As an example, the capacitor's capacity that capacitor plate positive 21 and capacitor plate minus 22 are constituted is in 1 ~ 2pF or so.
Be welded on first circuit board 10 respectively have encoder 11 and therewith signal connection driver 12, the driver 12 lead to
Cross wire positive with capacitor plate 21 to be connected；Being welded on second circuit board 30 respectively has comparator 31 and the decoding of signal connection therewith
Device 32, capacitor plate minus 22 are connected with comparator 31 by wire.
After tested, this system is 200MHz-350MHz by frequency range.
Two for closely rotating against at a high speed can be respectively installed in by minus to positive for the capacitor plate 21 and capacitor plate 22
On individual part, such as rotary part and stationary parts, simple, transmitting that data signal is realized by Capacitance Coupled.
A kind of method of closely Capacitance Coupled wireless digital signal transmission, comprises the following steps that：
1）Encoder 11 generates the data signal for needing transmission（Such as binary data）, corresponding waveform is generated via driver 12
Send to capacitor plate positive 21；
2）By Capacitance Coupled, alternating signal is coupled out on capacitor plate minus 22, is come on transmitting digital signals waveform with this
Side information；
3）Signal on capacitor plate minus 22 is reduced into after waveform through comparator 31, and data signal is delivered to decoder 32 is carried out
Decoding.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
Multiple modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. one kind closely Capacitance Coupled wireless digital signal Transmission system, it is characterised in that include：
Capacitor plate is just and capacitor plate is negative, and both keep the space of fixed range, form electric capacity；
Information waiting for transmission is generated binary data by encoder；
Driver, generates waveform corresponding with binary data and just sends to capacitor plate；
Comparator, will be negative for capacitor plate on the signal waveform that is coupled out revert to data signal；
Decoder, is decoded to data signal.
2. as claimed in claim 1 closely Capacitance Coupled wireless digital signal Transmission system, it is characterised in that the encoder
And driver is arranged at first circuit board, the driver is just connecting capacitor plate by wire；The comparator and decoder set
Second circuit board is placed in, the comparator connects capacitor plate by wire and bears.
3. as claimed in claim 1 closely Capacitance Coupled wireless digital signal Transmission system, it is characterised in that the capacitance pole
Plate is just bearing the capacitor's capacity of composition in 1 ~ 2pF with capacitor plate.
4. as claimed in claim 1 closely Capacitance Coupled wireless digital signal Transmission system, it is characterised in that signal passes through
Frequency range is 200MHz-350MHz.
5. closely Capacitance Coupled wireless digital signal Transmission system as described in any one in claim 1 ~ 4, its feature exist
In the capacitor plate is just negative with capacitor plate, is respectively installed on two parts for rotating against.
6. as claimed in claim 5 closely Capacitance Coupled wireless digital signal Transmission system, it is characterised in that the capacitance pole
Plate is just negative with capacitor plate, is respectively installed on rotary part and stationary parts.
7. one kind closely Capacitance Coupled wireless digital signal transmission method, it is characterised in that encoder is by information waiting for transmission
Binary data is generated, respective waveforms are just being delivered to capacitor plate through driver；Capacitor plate is negative with the capacitor plate just
Keep the space of fixed range to form electric capacity, the signal that capacitor plate is just being conveyed is received by Capacitance Coupled.
8. as claimed in claim 7 closely Capacitance Coupled wireless digital signal transmission method, it is characterised in that comparator is by electricity
The signal waveform being coupled out on appearance pole plate is negative reverts to data signal, data signal is decoded by decoder.
9. closely Capacitance Coupled wireless digital signal transmission method as described in claim 7 or 8, it is characterised in that the electricity
Hold pole plate just negative with capacitor plate, be respectively installed on two parts for rotating against.
10. as claimed in claim 9 closely Capacitance Coupled wireless digital signal transmission method, it is characterised in that the electric capacity
Pole plate is just negative with capacitor plate, is respectively installed on rotary part and stationary parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044520.8A CN106506049A (en) | 2016-11-24 | 2016-11-24 | A kind of closely Capacitance Coupled wireless digital signal Transmission system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044520.8A CN106506049A (en) | 2016-11-24 | 2016-11-24 | A kind of closely Capacitance Coupled wireless digital signal Transmission system and method |
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| Publication Number | Publication Date |
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| CN106506049A true CN106506049A (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611044520.8A Pending CN106506049A (en) | 2016-11-24 | 2016-11-24 | A kind of closely Capacitance Coupled wireless digital signal Transmission system and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1043850A2 (en) * | 1998-12-22 | 2000-10-11 | Nortel Networks Limited | Wireless data transmission over quasi-static electric potential fields |
| CN1404596A (en) * | 2000-02-18 | 2003-03-19 | 西帕克公司 | System for wireless, bi-directional transfer of electric signals |
| CN102054346A (en) * | 2009-11-11 | 2011-05-11 | 天宇微机电股份有限公司 | Signal transmission device and method |
| CN102882561A (en) * | 2012-07-24 | 2013-01-16 | 西安电子科技大学 | Non-contact data transmission device |
| CN103858358A (en) * | 2011-10-10 | 2014-06-11 | 罗斯蒂斯莱夫·沃洛迪米洛维奇·博森科 | A wireless transmission system, method for wirelessly transmitting a data stream between a transmitting apparatus and a receiving apparatus, method for wirelessly receiving a signal, transmitting apparatus for wirelessly transmitting a data stream and receiving apparatus for wirelessly receiving two electric signals to produce a received data stream |
-
2016
- 2016-11-24 CN CN201611044520.8A patent/CN106506049A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1043850A2 (en) * | 1998-12-22 | 2000-10-11 | Nortel Networks Limited | Wireless data transmission over quasi-static electric potential fields |
| CN1404596A (en) * | 2000-02-18 | 2003-03-19 | 西帕克公司 | System for wireless, bi-directional transfer of electric signals |
| CN102054346A (en) * | 2009-11-11 | 2011-05-11 | 天宇微机电股份有限公司 | Signal transmission device and method |
| CN103858358A (en) * | 2011-10-10 | 2014-06-11 | 罗斯蒂斯莱夫·沃洛迪米洛维奇·博森科 | A wireless transmission system, method for wirelessly transmitting a data stream between a transmitting apparatus and a receiving apparatus, method for wirelessly receiving a signal, transmitting apparatus for wirelessly transmitting a data stream and receiving apparatus for wirelessly receiving two electric signals to produce a received data stream |
| CN102882561A (en) * | 2012-07-24 | 2013-01-16 | 西安电子科技大学 | Non-contact data transmission device |
Non-Patent Citations (1)
| Title |
|---|
| 史军刚 等: "《非接触电容耦合式信号传输方法》", 《西安电子科技大学学报（自然科学版）》 * |
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