CN102882561B - Non-contact data transmission device - Google Patents
Non-contact data transmission device Download PDFInfo
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- CN102882561B CN102882561B CN201210255575.9A CN201210255575A CN102882561B CN 102882561 B CN102882561 B CN 102882561B CN 201210255575 A CN201210255575 A CN 201210255575A CN 102882561 B CN102882561 B CN 102882561B
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- pole plate
- outer shroud
- field coupled
- interior ring
- coupled pole
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Abstract
The invention belongs to the field of the mechatronics technology and relates to a non-contact data transmission device, wherein the non-contact data transmission device comprises a shaper, a phase separator, an electric field coupling ring, a first charge amplifier, a second charge amplifier, a subtracter, a forward comparator, a negative comparator and an R-S trigger; after being shaped by the shaper, input signals are sent to the input end of the phase separator; two paths of D+ data line signals and D- data line signals with difference of 180 degrees are obtained by the phase separator; and the D+ data line signals and D- data line signals are sent to the first charge amplifier and the second charge amplifier through the electric field coupling ring. The non-contact data transmission device provided by the invention is a data transmission device which is high in reliability and long in service life, and is free from abrasion and not affected by impurities.
Description
Technical field
The invention belongs to electromechanical integration technology area, relate to a kind of non-contact data transmission device, can be used for the contactless transmission of bi-directional data to equipment under rotating parts, machine joint, speed turntable and ore deposit.
Background technology
Various radars, speed turntable that Aeronautics and Astronautics, navigation, satellite are used, and Automated electronic device, as mechanical joint, turning arm, use the Electical connectors such as conducting slip ring to carry out the transmission of electric energy or signal in the electronic equipments such as mine locating drilling well conventionally.
Modern electronic equipment is had relatively high expectations to the useful life of this Electical connector and reliable long-term working.The method of conducting ring and brush dynamic Contact that adopts traditional electrical contact device realizes the transmission of electric energy or signal, very harsh to index requests such as the conductivity of conducting ring and brush, anti-erosion property, resistance to chemical corrosion and abrasion resistances.The wiping contact of conducting ring and brush is often used the noble metals such as gold, silver, platinum, iridium to make, and cost is high, complex process and average life problem still.
In recent years, industrial normal employing fiber rotation connector (being called again: smooth ring, optical fiber rotary joint, light hinge) is realized the noncontact transmission of signal between rotating parts, has improved useful life and data transfer bandwidth.But smooth ring needs accurate optical texture and higher concentricity, and light path can not have blocking of the impurity such as water, dust and silt.Service condition is comparatively harsh, and practical application is subject to great restriction.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, provide that a kind of reliability is high, the life-span is long, without wearing and tearing, be not subject to the non-contact data transmission device of impurity effect.
For achieving the above object, technical scheme of the present invention is: non-contact data transmission device, it is characterized in that: comprise reshaper, phase separator, field coupled ring, the first charge amplifier, the second charge amplifier, subtracter, forward comparator, negative sense comparator and R-S trigger, input signal is sent into the input of phase separator after to input signal shaping by reshaper, after phase separator, obtain D+ data line signal and the D-data line signal of two-way phase phasic difference 180 degree, wherein D+ data line signal and D-data line signal are sent into the first charge amplifier and the second charge amplifier by field coupled ring.
The signal of the first described charge amplifier and the output of the second charge amplifier is sent into subtracter, and subtracter is exported the difference of two signals; At each input signal 0/1 jumping moment, subtracter will be exported a forward pulse, and the rising edge of pulse is constantly identical with 0/1 jumping moment; At input data 1/0 jumping moment, subtracter will be exported a negative sense pulse, and the rising edge of pulse is constantly identical with 1/0 jumping moment.
The output of described subtracter is connected with the inverting input of negative sense comparator with the in-phase end of forward comparator respectively; The anti-phase input termination reference signal V+ of forward comparator, the in-phase input end of negative sense comparator connects reference signal V-, and the output of forward comparator is connected with the S end of R-S trigger, and the output of negative sense comparator is connected with the R end of R-S trigger.
Described field coupled ring comprises the first outer shroud field coupled pole plate, the second outer shroud field coupled pole plate, the first interior ring field coupled pole plate, the second interior ring field coupled pole plate, outer shroud shielding pole plate, interior ring shielding pole plate, outer shroud insulating barrier, interior ring insulating barrier, outer shroud screen, interior ring screen, the first outer shroud coaxial cable, the second outer shroud coaxial cable, the first interior ring coaxial cable and the second interior ring coaxial cable; Outer shroud insulating barrier and outer shroud screen are fixed on lateral surface in the first outer shroud field coupled pole plate and the second outer shroud field coupled pole plate; Interior ring insulating barrier and interior ring screen are fixed on lateral surface in the first interior ring field coupled pole plate and the second interior ring field coupled pole plate; The first outer shroud coaxial cable and the second outer shroud coaxial cable are electrically connected to the first outer shroud field coupled pole plate and the second outer shroud field coupled pole plate, and the first interior ring field coupled pole plate and the second interior ring field coupled pole plate are electrically connected to the first interior ring coaxial cable and the second interior ring coaxial cable.
The first described outer shroud field coupled pole plate, the second outer shroud field coupled pole plate respectively with the first interior ring field coupled pole plate, the second interior ring field coupled pole plate is coaxial and inside and outside over against; Outer shroud shielding pole plate, interior ring shielding pole plate connect respectively and are fixed on outer shroud screen, interior ring screen.
Outer shroud insulating barrier in described field coupled ring, interior ring insulating barrier adopt polytetrafluoroethylene, and the dielectric coefficient of polytetrafluoroethylene can reach 2-3.
Described field coupled ring is a coupling capacitance.
The present invention compares with existing rotating parts data transmission device, has the following advantages:
1, adopt cordless to realize highly reliable bi-directional data link, and electric isolation completely between data transfer component, equipment is safe and reliable.
2, between data transfer component without electrical contact, avoid using noble metal to make brush and slip ring, effectively reduce costs and manufacture difficulty; Machinery-free wearing and tearing, useful life and the data transmission credibility of raising device.
3, be different from electric contact type slip ring, even if there are the impurity such as water, oil stain or dust to exist between non-contact data transmission parts, also do not affect the normal transmission of data, reduced the requirement to environment for use.
4, between data transfer component, have enough gap surpluses, machinery coordinates simple, low to axiality requirement, has reduced structure design difficulty.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Accompanying drawing 1 is embodiment of the present invention schematic block diagram;
Accompanying drawing 2 is embodiment of the present invention field coupled ring structure schematic diagrames.
In figure, 101, reshaper; 102, phase separator; 103, field coupled ring; 104A, the first charge amplifier; 104B, the second charge amplifier; 105, subtracter; 106, forward comparator; 107, negative sense comparator; 108, R-S trigger; 201A, the first outer shroud field coupled pole plate; 201B, the second outer shroud field coupled pole plate; 202A, the first outer shroud coaxial cable; 202B, the second outer shroud coaxial cable; 203, outer shroud shielding pole plate; 205, outer shroud insulating barrier; 204, outer shroud screen; 206 A, the first interior ring coaxial cable; 206 B, the second interior ring coaxial cable; 207A, the first interior ring field coupled pole plate; 207B, the second interior ring field coupled pole plate; 208, interior ring shielding pole plate; 209, interior ring screen; 210, interior ring insulating barrier.
Embodiment
Embodiment 1
Non-contact data transmission device, it is characterized in that: comprise reshaper 101, phase separator 102, field coupled ring 103, the first charge amplifier 104A, the second charge amplifier 104B, subtracter 105, forward comparator 106, negative sense comparator 107 and R-S trigger 108, input signal is sent into the input of phase separator 102 after by 101 pairs of input signal shapings of reshaper, after phase separator 102, obtain D+ data line signal and the D-data line signal of two-way phase phasic difference 180 degree, wherein D+ data line signal and D-data line signal are sent into the first charge amplifier 104A and the second charge amplifier 104B by field coupled ring 103.
Embodiment 2
With reference to accompanying drawing 1, rotation non-contact data transmission device, comprise reshaper 101, phase separator 102, field coupled ring 103, the first charge amplifier 104A, the second charge amplifier 104B, subtracter 105, forward comparator 106, negative sense comparator 107 and R-S trigger 108, input signal is sent into the input of phase separator 102 after by 101 pairs of input signal shapings of reshaper, after phase separator 102, obtain D+ data line signal and the D-data line signal of two-way phase phasic difference 180 degree, wherein D+ data line signal and D-data line signal are sent into charge amplifier 104A and charge amplifier 104B by field coupled ring 103, signal by the first charge amplifier 104A, the second charge amplifier 104B output is sent into subtracter 105, the difference of subtracter 105 output two signals, at each input signal 0/1 jumping moment, subtracter 105 will be exported a forward pulse, and the rising edge of pulse is constantly identical with 0/1 jumping moment, at input data 1/0 jumping moment, subtracter will be exported a negative sense pulse, and the rising edge of pulse is constantly identical with 1/0 jumping moment, the pulse signal of forward comparator 106 outputs is sent to the S end of R-S trigger 108, the pulse signal of negative sense comparator 107 outputs is sent to the R end of R-S trigger 108, the output of Q end and the on all four data flow of input traffic of R-S trigger 108.
The output of subtracter 105 is connected with the inverting input of negative sense comparator 107 with the in-phase end of forward comparator 106 respectively; The anti-phase input termination reference signal V+ of forward comparator 106, the in-phase input end of negative sense comparator 107 connects reference signal V-, the output of forward comparator 106 is connected with the S end of R-S trigger 108, and the output of negative sense comparator 107 is connected with the R end of R-S trigger 108.
Field coupled ring 103 structures, as Fig. 2, comprise the first outer shroud field coupled pole plate 201A, the second outer shroud field coupled pole plate 201B, the first interior ring field coupled pole plate 207A, the second interior ring field coupled pole plate 207B, outer shroud shielding pole plate 203, interior ring shielding pole plate 208, outer shroud insulating barrier 205, interior ring insulating barrier 210, outer shroud screen 204, interior ring screen 209, the first outer shroud coaxial cable 202 A, the second outer shroud coaxial cable 202 B, the first interior ring coaxial cable 206 A and the second interior ring coaxial cable 206B; Outer shroud insulating barrier 205 and outer shroud screen 204 are fixed on lateral surface in the first outer shroud field coupled pole plate 201A and the second outer shroud field coupled pole plate 201B; Interior ring insulating barrier 210 and interior ring screen 209 are fixed on lateral surface in the first interior ring field coupled pole plate 207A and the second interior ring field coupled pole plate 207B; The first outer shroud coaxial cable 202 A and the second outer shroud coaxial cable 202 B are electrically connected to the first outer shroud field coupled pole plate 201A and the second outer shroud field coupled pole plate 201B, and the first interior ring field coupled pole plate 207A and the second interior ring field coupled pole plate 207B are electrically connected to the first interior ring coaxial cable 206 A and the second interior ring coaxial cable 206B.
The first described outer shroud field coupled pole plate 201A, the second outer shroud field coupled pole plate 201B respectively with the first interior ring field coupled pole plate 207A, the second interior ring field coupled pole plate 207B coaxial and inside and outside over against; Outer shroud shielding pole plate 203, interior ring shielding pole plate 208 connect respectively and are fixed on outer shroud screen 204, interior ring screen 209.
Insulating barrier 205,210 in field coupled ring 103 adopts polytetrafluoroethylene, and the dielectric coefficient of polytetrafluoroethylene can reach 2-3, can strengthen the capacitance of coupling capacitance.
Operation principle of the present invention is as follows:
Coupling capacitance utilizes outer shroud field coupled pole plate 201, interior ring field coupled pole plate 207 and air dielectric to form; Input signal obtains the digital signal of two-way phasic difference 180 degree after by reshaper 101 and phase separator 102, and wherein D+ data line signal is by the capacitive coupling that consists of field coupled pole plate 201A and 207A and send into charge amplifier 104A; D-data line signal is by the capacitive coupling that consists of field coupled pole plate 201B and 207B and be sent to charge amplifier 104B; Signal by charge amplifier 104A, 104B output is sent into subtracter 105, obtains the difference of two signals; At input data 0/1 jumping moment subtracter 105, will export a forward pulse, the rising edge of pulse is constantly identical with 0/1 jumping moment; At input data 1/0 jumping moment subtracter, will export a negative sense pulse, the rising edge of pulse is constantly identical with 1/0 jumping moment.
The S that the pulse signal of being exported by forward comparator 106 is sent to R-S trigger 108 holds; The pulse signal of negative sense comparator 107 outputs is sent to the R end of R-S trigger 108, from the output of Q end and the on all four data flow of input traffic of R-S trigger 108.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (5)
1. non-contact data transmission device, it is characterized in that: comprise reshaper (101), phase separator (102), field coupled ring (103), the first charge amplifier (104A), the second charge amplifier (104B), subtracter (105), forward comparator (106), negative sense comparator (107) and R-S trigger (108), input signal is sent into the input of phase separator (102) after to input signal shaping by reshaper (101), after phase separator (102), obtain D+ data line signal and the D-data line signal of two-way phase phasic difference 180 degree, wherein D+ data line signal and D-data line signal are sent into the first charge amplifier (104A) and the second charge amplifier (104B) by field coupled ring (103), described field coupled ring (103) comprises the first outer shroud field coupled pole plate (201A), the second outer shroud field coupled pole plate (201B), the first interior ring field coupled pole plate (207A), the second interior ring field coupled pole plate (207B), outer shroud shielding pole plate (203), interior ring shielding pole plate (208), outer shroud insulating barrier (205), interior ring insulating barrier (210), outer shroud screen (204), interior ring screen (209), the first outer shroud coaxial cable (202 A), the second outer shroud coaxial cable (202 B), the first interior ring coaxial cable (206 A) and the second interior ring coaxial cable (206B), outer shroud insulating barrier (205) and outer shroud screen (204) are fixed on the first outer shroud field coupled pole plate (201A) and the interior lateral surface of the second outer shroud field coupled pole plate (201B), interior ring insulating barrier (210) and interior ring screen (209) are fixed on the first interior ring field coupled pole plate (207A) and the interior lateral surface of the second interior ring field coupled pole plate (207B), the first outer shroud coaxial cable (202 A) and the second outer shroud coaxial cable (202 B) are electrically connected to the first outer shroud field coupled pole plate (201A) and the second outer shroud field coupled pole plate (201B), and the first interior ring field coupled pole plate (207A) and the second interior ring field coupled pole plate (207B) are electrically connected to the first interior ring coaxial cable (206 A) and the second interior ring coaxial cable (206B).
2. non-contact data transmission device according to claim 1, it is characterized in that: the signal of described the first charge amplifier (104A) and the second charge amplifier (104B) output is sent into subtracter (105) difference of subtracter (105) output two signals; At each input signal 0/1 jumping moment, subtracter (105) will be exported a forward pulse, and the rising edge of pulse is constantly identical with 0/1 jumping moment; At input data 1/0 jumping moment, subtracter (105) will be exported a negative sense pulse, and the rising edge of pulse is constantly identical with 1/0 jumping moment.
3. non-contact data transmission device according to claim 2, is characterized in that: the output of described subtracter (105) is connected with the inverting input of negative sense comparator (107) with the in-phase end of forward comparator (106) respectively; The anti-phase input termination reference signal V+ of forward comparator (106), the in-phase input end of negative sense comparator (107) connects reference signal V-, the output of forward comparator (106) is connected with the S end of R-S trigger (108), and the output of negative sense comparator (107) is connected with the R end of R-S trigger (108).
4. non-contact data transmission device according to claim 1, is characterized in that: the first described outer shroud field coupled pole plate (201A), the second outer shroud field coupled pole plate (201B) respectively with the first interior ring field coupled pole plate (207A), the second interior ring field coupled pole plate (207B) is coaxial and inside and outside over against; Outer shroud shielding pole plate (203), interior ring shielding pole plate (208) connect respectively and are fixed on outer shroud screen (204), interior ring screen (209).
5. non-contact data transmission device according to claim 1, it is characterized in that: the outer shroud insulating barrier (205) in described field coupled ring (103), interior ring insulating barrier (210) adopt polytetrafluoroethylene, and the dielectric coefficient of polytetrafluoroethylene can reach 2-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210255575.9A CN102882561B (en) | 2012-07-24 | 2012-07-24 | Non-contact data transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210255575.9A CN102882561B (en) | 2012-07-24 | 2012-07-24 | Non-contact data transmission device |
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| CN102882561A CN102882561A (en) | 2013-01-16 |
| CN102882561B true CN102882561B (en) | 2014-10-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257263B (en) * | 2013-03-09 | 2016-05-25 | 西安电子科技大学 | Contactless duplex frequency voltage measuring device |
| CN103607225B (en) * | 2013-11-29 | 2016-04-27 | 西安电子科技大学 | Based on the Non-contact data transmission device of self adaptation conducting medium |
| CN104135267B (en) * | 2014-07-31 | 2017-10-13 | 上海移为通信技术股份有限公司 | A kind of device for reading CAN data |
| CN106506049A (en) * | 2016-11-24 | 2017-03-15 | 上海航天控制技术研究所 | A kind of closely Capacitance Coupled wireless digital signal Transmission system and method |
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| CN2711740Y (en) * | 2004-06-10 | 2005-07-20 | 贺国顺 | Multi-function electronic electricity test pen |
| US7314997B1 (en) * | 2005-07-18 | 2008-01-01 | Yazaki North America, Inc. | High speed data communication link using triaxial cable |
| CN201138359Y (en) * | 2007-12-27 | 2008-10-22 | 栾浩东 | Non-contact type phase sequence detector circuit |
| CN101943901A (en) * | 2010-08-11 | 2011-01-12 | 西安电子科技大学 | Online data monitoring device of non-contact-type 485 bus |
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2012
- 2012-07-24 CN CN201210255575.9A patent/CN102882561B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2711740Y (en) * | 2004-06-10 | 2005-07-20 | 贺国顺 | Multi-function electronic electricity test pen |
| US7314997B1 (en) * | 2005-07-18 | 2008-01-01 | Yazaki North America, Inc. | High speed data communication link using triaxial cable |
| CN201138359Y (en) * | 2007-12-27 | 2008-10-22 | 栾浩东 | Non-contact type phase sequence detector circuit |
| CN101943901A (en) * | 2010-08-11 | 2011-01-12 | 西安电子科技大学 | Online data monitoring device of non-contact-type 485 bus |
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| CN102882561A (en) | 2013-01-16 |
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