CN1134636A - Electromagnetic inductive contactless data transmission interface - Google Patents
Electromagnetic inductive contactless data transmission interface Download PDFInfo
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- CN1134636A CN1134636A CN 95104281 CN95104281A CN1134636A CN 1134636 A CN1134636 A CN 1134636A CN 95104281 CN95104281 CN 95104281 CN 95104281 A CN95104281 A CN 95104281A CN 1134636 A CN1134636 A CN 1134636A
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Abstract
The electromagnetic inductive data transmission interface is used for data acquisition and transmission. The plug with coil inside, the socket with coil outside and the magnetic core inside the plug constitute mutual inductance structure realizing data acquisition and transmission. The present invention is suitable for use in data acquisition and transmission system needing frequent plug-in and withdrawing or needing sealing.
Description
The present invention is mainly used in data acquisition, field of data transmission.
Along with development of electronic technology, the method for transfer of data is more and more.Can be divided into the interface that the contact is arranged according to the way of contact, as the connecting interface between computer and the various peripheral hardware, another kind is the interface of non-contact type, between the interface without any contact, carry out transfer of data by the space medium, use infrared ray as transmission medium exactly as domestic TV set remote-controller in the daily life, when remote transfer of data, often adopt wireless system to transmit.Obviously, there is the interface of contact to be used in the fixing environment of relative position between the equipment more, interface is dialled and is inserted seldom, wearing and tearing are not subject matter, contactless interface then is used for the unfixed environment of relative position between the transmission equipment more, when going to collect the data in the diverse location equipment with a data collector, because the continuous conversion of interface, dial repeatedly when inserting, there is the interface of contact inevitable easy to wear, at this moment, contactless interface has just showed superiority, because do not have interface contact wearing and tearing and etching problem.
Though multiple prior aries such as infrared ray and radio are arranged in the contactless mode, can solve the wear problem that contact interface is arranged, but closely in the occasion of transfer of data weak point is arranged also, being subject to extraneous light as infrared mode disturbs, and between the transmission equipment shelter can not be arranged, wireless system waste one's talent on a petty job (being applicable to remote transfer of data) that seem again, easily disturb working equipment on the one hand, power consumption is big when launching on the other hand, and need a cover radio transmission, receiving system, frequency band must be ratified through relevant department, or the like, more complicated.
The objective of the invention is to design a kind of electromagnetic inductive contactless data transmission interface, to strengthen the antijamming capability in data acquisition, the transmission and to avoid interface to influence the interface life-span because of wearing and tearing or corroding.
The present invention uses electromagnetic induction principle, and as shown in Figure 1 and Figure 2, with two groups of coil L1, L2 of magnetic core, when among the coil L1 during vicissitudinous electric current I 1, according to the undesirable mutual electromagnetic inductance principle, the electric current I 2 of coil L2 is also along with I1 changes.Institute's plus signal can induce corresponding signal on the coil L1 on coil L2.
According to above-mentioned principle, we are first independently on magnetic core with coil L2, as shown in Figure 3, air core inductor of coil L1 coiled, now coil L2 is inserted among the coil L1, formed mutual inductance structure so between two coils naturally, produce the mutual inductance effect between two coils, if will be with the coil L2 of magnetic core and do not make plug and socket respectively, just can be used for the interface of transfer of data with the coil L1 of magnetic core.
The present invention reaches closely compared with the interface that the contact is arranged, and the infrared transmission interface has following advantage:
1, the problem that does not have contact wear and corrosion is such as the data acquisition that is used for the taxi taximeter.
2, help the sealing, dustproof of device interior, the environment that the equipment of being applicable to need seal as the data acquisition of underwater installation, and for example is used to the data acquisition of the instrument measured in the open air.Because this interface is the abutment surface induction, do not need equipment any contact to be arranged outside.
3, be convenient to often dial the Various types of data acquisition system of working in the environment of inserting.
4, be not subject to external interference, the data transmission success height, owing to be weak induction, external electromagnetic field is little to this group mutual inductor influence, with amount, the electromagnetism that mutual inductance produces can not disturb its peripheral equipment yet.
Fig. 1, electromagnetic induction line map.
Fig. 2, electromagnetic induction structural representation.
Fig. 3, structural principle schematic diagram of the present invention.
Fig. 4, embodiment one schematic diagram.
Fig. 5, embodiment two circuit schematic diagrames.
Fig. 6, embodiment three circuit schematic diagrames.
Embodiment one:
On the shell of equipment, do a pit (as shown in Figure 4), coil L1 is formed socket 2 on the pit of inwall.Do one correspondingly and convex to form plug 1, coil L2 is arranged in the plug 1, magnetic core 13 is arranged among the coil L2, after plug 1 inserted socket 2, L2 and L1 promptly formed mutual inductance structure, and the signal that AA ' end adds will be sensed BB ' end.Conversely, also can sense AA ' end as if the signal that adds at BB ' end.
Embodiment two:
As shown in Figure 5, carry out the one-way data transmission between two central processing units (CPU), wherein 3 is the central processing unit (CPU) of transmit leg, and 4 is recipient's central processing unit (CPU), and 5 is modulation signal generator, 6 is modulator, 7 is coil actuator, and 8 is band pass filter, and 9 is wave detector, 10 is integrator, and 11 is schmidt shaping circuit.
The serial data signal that central processing unit 3 (CPU) sends is modulated by modulator 6, after driving, driver 7 is added to the AA ' end of coil L1 through the data-signal of ovennodulation, this signal is sensed the BB ' end of L2 by the interface sensing interface, carry out demodulation by band pass filter 8, wave detector 9, integrator 10 again, after Schmidt circuit 11 shapings, restore central processing unit 3 (CPU) data-signal of sending out again, send central processing unit 4 (CPU) to receive at last, realized the transmission of data.
Embodiment three:
A lot of occasion data are transmitted in both directions, as long as this change on the basis of embodiment two a little, insert the part 8,9,10,11 of receiving demodulation as shown in Figure 6 at the transmit leg of embodiment two, insert transmission modulating part 5,6,7 original recipient, this structure gets final product the two-way transmission of composition data.
Embodiment four:
As embodiment one described the present invention, outside plug 1 and socket 2, can be wound with many group coils respectively, also can realize multidirectional transfer of data.
Claims (3)
1, a kind of electromagnetic inductive contactless data transmission interface is made up of plug (1) and socket (2), it is characterized in that: in the inside of plug (1) and the outside of socket (2) coil is arranged respectively, magnetic core (13) is arranged in the coil of plug 1, constitute mutual inductance structure.
2, electromagnetic inductive contactless data transmission interface according to claim 1 is characterized in that: the inside and socket (2) outside at plug (1) have one group of coil respectively.
3, electromagnetic inductive contactless data transmission interface according to claim 1 is characterized in that: in the inside of plug (1) and the outside of socket (2) the array coil is arranged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95104281 CN1134636A (en) | 1995-04-26 | 1995-04-26 | Electromagnetic inductive contactless data transmission interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95104281 CN1134636A (en) | 1995-04-26 | 1995-04-26 | Electromagnetic inductive contactless data transmission interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1134636A true CN1134636A (en) | 1996-10-30 |
Family
ID=5075077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95104281 Pending CN1134636A (en) | 1995-04-26 | 1995-04-26 | Electromagnetic inductive contactless data transmission interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1134636A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447200A (en) * | 2010-10-14 | 2012-05-09 | 修武县电业公司 | Inductive plugging device |
| CN103972737A (en) * | 2013-02-04 | 2014-08-06 | 上海蔻林半导体照明有限公司 | Magnetic-induction plug socket |
| CN103972736A (en) * | 2013-02-04 | 2014-08-06 | 上海蔻林半导体照明有限公司 | Electro-magnetic inductive plug and socket combination |
| US9544964B2 (en) | 2015-04-30 | 2017-01-10 | S.R. Smith, Llc | Lighting devices employing class-E power amplifier for inductive power and data transfer in high-moisture operating environments |
| EP3182425A1 (en) * | 2015-12-16 | 2017-06-21 | Jiang, Keqin | Electromagnetic induction apparatus for power transfer |
| CN111180221A (en) * | 2020-01-06 | 2020-05-19 | 山东光韵智能科技有限公司 | Resin-based carbon fiber composite permanent magnet conductive contact and manufacturing method thereof |
| CN111725898A (en) * | 2019-03-18 | 2020-09-29 | 蔻林科技发展(上海)有限公司 | Non-metal contact electric energy transmission connecting device |
| US11326363B2 (en) | 2019-01-25 | 2022-05-10 | Guangzhou Rising Dragon Recreation Industrial Co. | Wireless swimming pool LED lighting device |
-
1995
- 1995-04-26 CN CN 95104281 patent/CN1134636A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447200A (en) * | 2010-10-14 | 2012-05-09 | 修武县电业公司 | Inductive plugging device |
| CN103972737A (en) * | 2013-02-04 | 2014-08-06 | 上海蔻林半导体照明有限公司 | Magnetic-induction plug socket |
| CN103972736A (en) * | 2013-02-04 | 2014-08-06 | 上海蔻林半导体照明有限公司 | Electro-magnetic inductive plug and socket combination |
| WO2014117481A1 (en) * | 2013-02-04 | 2014-08-07 | 上海蔻林半导体照明有限公司 | Electromagnetic induction plug and socket |
| US9544964B2 (en) | 2015-04-30 | 2017-01-10 | S.R. Smith, Llc | Lighting devices employing class-E power amplifier for inductive power and data transfer in high-moisture operating environments |
| EP3182425A1 (en) * | 2015-12-16 | 2017-06-21 | Jiang, Keqin | Electromagnetic induction apparatus for power transfer |
| US11326363B2 (en) | 2019-01-25 | 2022-05-10 | Guangzhou Rising Dragon Recreation Industrial Co. | Wireless swimming pool LED lighting device |
| CN111725898A (en) * | 2019-03-18 | 2020-09-29 | 蔻林科技发展(上海)有限公司 | Non-metal contact electric energy transmission connecting device |
| CN111180221A (en) * | 2020-01-06 | 2020-05-19 | 山东光韵智能科技有限公司 | Resin-based carbon fiber composite permanent magnet conductive contact and manufacturing method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |