CN105575099A - Ground differential signal transmission circuit - Google Patents
Ground differential signal transmission circuit Download PDFInfo
- Publication number
- CN105575099A CN105575099A CN201510948503.6A CN201510948503A CN105575099A CN 105575099 A CN105575099 A CN 105575099A CN 201510948503 A CN201510948503 A CN 201510948503A CN 105575099 A CN105575099 A CN 105575099A
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- CN
- China
- Prior art keywords
- differential amplifier
- differential
- signal
- wire
- ground
- 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
Links
- 230000008054 signal transmission Effects 0.000 title abstract description 19
- 230000011664 signaling Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 abstract 4
- 230000007935 neutral effect Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dc Digital Transmission (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a ground differential signal transmission circuit which comprises a four-core cable conductor, a differential amplifier T and a differential amplifier R, wherein four wire cores, namely a live wire L, a neutral wire N, a grounding wire E and a data wire D, are arranged in the cable conductor; the differential amplifier T serving as a signal input end is arranged at one end of the cable conductor; the differential amplifier R serving as a signal output end is arranged at the other end of the cable conductor; the two ends of the grounding wire E are respectively connected with the differential signal cathodes of the differential amplifier T and the differential amplifier R; the two ends of the data wire D are respectively connected with differential signal anodes of the differential amplifier T and the differential amplifier R; the live wire L and the neutral wire N can normally transmit high-voltage electric energy; the grounding wire E is connected with the differential signal cathodes; and the data wire D is connected with the differential signal anodes. Therefore, under the condition that interference of a high-voltage power grid is avoided, the power line of the four-core cable transmits a differential signal. The ground differential signal transmission circuit has the advantages of high signal transmission rate, stable and reliable signals and low wiring cost.
Description
Technical field
The present invention relates to signal circuit, especially a kind of differential signaling circuit of difference over the ground.
Background technology
Front signal transmission form can be divided into wire signal to transmit and transmission of wireless signals two kinds substantially, wherein wire signal transmission mode generally all adopts the way of low-voltage signal line and high-tension distributing line wires apart, the normal work of object in order to prevent high voltage power distribution from having influence on low-voltage signal, but the cost of low voltage wiring can be increased equally.In order to solve low voltage wiring Cost Problems and engineering complexity, there is the high-voltage fence communication modes of power line carrier, advantage is directly by L, N, E tri-power lead signal transmissions of triple cable, eliminate low-voltage signal line, engineering wiring is simple, and cost is cheaper, shortcoming is that signal transmission rate is low, easily disturb by electrical network, stability is poor, is difficult to widespread use.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of differential signaling circuit of difference over the ground, and signal transmission rate is high, and signal stabilization is reliable, and wiring cost is low.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of differential signaling circuit of difference over the ground, comprises quad line, differential amplifier T and differential amplifier R; Live wire L, zero line N, ground wire E, data line D tetra-cores are had in cable; Differential amplifier T is arranged on one end of cable as signal input part, differential amplifier R is arranged on the other end of cable as signal output part, the two ends of ground wire E are connected with the differential signal negative pole of differential amplifier T and differential amplifier R respectively, and the two ends of data line D are connected with the differential signal positive pole of differential amplifier T and differential amplifier R respectively.The present invention is on the cable power line of total live wire L, a zero line N, ground wire E, data line D tetra-cores, utilize the signal transmission form of wherein a ground wire E and a data lines D differential signal transmission, wherein live wire L and zero line N line can normal transmission high voltage electric energies, ground wire E connects differential signal negative pole, and data line D connects differential signal positive pole
,thus under the condition not by high-voltage fence interference, utilize quad power line transmission differential signal, its advantage is that signal transmission rate is high, signal stabilization is reliable, and wiring cost is low.
As improvement, the two ends of described cable are equipped with an a differential amplifier T and differential amplifier R, form transmitted in both directions.
As improvement, data-signal transfers to the input end of differential amplifier T by light disconnector; The output terminal of differential amplifier R is outputed signal by photoelectric switch.
As improvement, between described ground wire E and data line D, be provided with TVS pipe, form overvoltage protection.
The beneficial effect that the present invention is compared with prior art brought is:
The present invention is on the cable power line of total live wire L, a zero line N, ground wire E, data line D tetra-cores, utilize the signal transmission form of wherein a ground wire E and a data lines D differential signal transmission, wherein live wire L and zero line N line can normal transmission high voltage electric energies, ground wire E connects differential signal negative pole, and data line D connects differential signal positive pole
,thus under the condition not by high-voltage fence interference, utilize quad power line transmission differential signal, its advantage is that signal transmission rate is high, signal stabilization is reliable, and wiring cost is low.
Accompanying drawing explanation
Fig. 1 is the present invention's differential transfer differential signal circuit schematic diagram over the ground.
Fig. 2 is full duplex mode differential transfer differential signal circuit schematic diagram over the ground.
Fig. 3 is for adding photoelectric switch differential transfer differential signal circuit schematic diagram over the ground.
Fig. 4 is the differential signal circuit of the differential transfer over the ground schematic diagram adding photoelectric switch and TVS pipe.
Embodiment
Below in conjunction with Figure of description, the invention will be further described.
As shown in Figure 1, a kind of differential signaling circuit of difference over the ground, comprises quad line, differential amplifier T and differential amplifier R; Live wire L, zero line N, ground wire E, data line D tetra-cores are had in cable; Differential amplifier T is arranged on one end of cable as signal input part, differential amplifier R is arranged on the other end of cable as signal output part, the two ends of ground wire E are connected with the differential signal negative pole of differential amplifier T and differential amplifier R respectively, and the two ends of data line D are connected with the differential signal positive pole of differential amplifier T and differential amplifier R respectively.
As shown in Figure 2, for realizing full duplex mode differential transfer differential signal over the ground, an a differential amplifier T and one differential amplifier R can be equipped with at the two ends of cable, the differential amplifier T of cable input end and the differential amplifier R of cable output terminal matches the two ends forming Signal transmissions, so all can realize the input and output of signal at the two ends of cable.
As shown in Figure 3, data-signal transfers to the input end of differential amplifier T by light disconnector; The output terminal of differential amplifier R is outputed signal by photoelectric switch.
As shown in Figure 4, on the basis adding photoelectric switch, between described ground wire E and data line D, be provided with TVS pipe, form overvoltage protection.
The present invention is on the cable power line of total live wire L, a zero line N, ground wire E, data line D tetra-cores, utilize the signal transmission form of wherein a ground wire E and a data lines D differential signal transmission, wherein live wire L and zero line N line can normal transmission high voltage electric energies, ground wire E connects differential signal negative pole, and data line D connects differential signal positive pole
,thus under the condition not by high-voltage fence interference, utilize quad power line transmission differential signal, its advantage is that signal transmission rate is high, signal stabilization is reliable, and wiring cost is low.
Claims (4)
1.
a differential signaling circuit for difference over the ground, is characterized in that: comprise quad line, differential amplifier T and differential amplifier R; Live wire L, zero line N, ground wire E, data line D tetra-cores are had in cable; Differential amplifier T is arranged on one end of cable as signal input part, differential amplifier R is arranged on the other end of cable as signal output part, the two ends of ground wire E are connected with the differential signal negative pole of differential amplifier T and differential amplifier R respectively, and the two ends of data line D are connected with the differential signal positive pole of differential amplifier T and differential amplifier R respectively.
2.
the differential signaling circuit of a kind of difference over the ground according to claim 1, is characterized in that: the two ends of described cable are equipped with an a differential amplifier T and differential amplifier R, forms transmitted in both directions.
3.
the differential signaling circuit of a kind of difference over the ground according to claim 1, is characterized in that: data-signal transfers to the input end of differential amplifier T by light disconnector; The output terminal of differential amplifier R is outputed signal by photoelectric switch.
4.
the differential signaling circuit of a kind of difference over the ground according to claim 1, is characterized in that: be provided with TVS pipe between described ground wire E and data line D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510948503.6A CN105575099A (en) | 2015-12-17 | 2015-12-17 | Ground differential signal transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510948503.6A CN105575099A (en) | 2015-12-17 | 2015-12-17 | Ground differential signal transmission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105575099A true CN105575099A (en) | 2016-05-11 |
Family
ID=55885174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510948503.6A Pending CN105575099A (en) | 2015-12-17 | 2015-12-17 | Ground differential signal transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105575099A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1533046A (en) * | 2003-03-26 | 2004-09-29 | 北海市深蓝科技市发展有限责任公司 | New low voltage power line carrier signal pickup method |
| GB2407013A (en) * | 2003-09-30 | 2005-04-13 | Peter John Jones | Signalling via mains wiring |
| CN102651658A (en) * | 2011-02-23 | 2012-08-29 | 上海芯域微电子有限公司 | Power line carrier communication terminal device |
| CN104170268A (en) * | 2012-03-16 | 2014-11-26 | 住友电气工业株式会社 | Communication device and communication system |
| CN104242987A (en) * | 2013-06-08 | 2014-12-24 | 青岛鼎信通讯股份有限公司 | Balanced transmission technology suitable for low-voltage power line carrier communication |
| CN104779975A (en) * | 2015-02-14 | 2015-07-15 | 云南电网有限责任公司 | A differential coupling communication device of high speed power line carrier system |
| CN204707121U (en) * | 2015-07-04 | 2015-10-14 | 青岛东软载波科技股份有限公司 | The wide-band communication system of multinode low-voltage direct power line |
| CN204886948U (en) * | 2015-08-31 | 2015-12-16 | 浙江方大智控科技有限公司 | Power line carrier signals interconnected circuit |
-
2015
- 2015-12-17 CN CN201510948503.6A patent/CN105575099A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1533046A (en) * | 2003-03-26 | 2004-09-29 | 北海市深蓝科技市发展有限责任公司 | New low voltage power line carrier signal pickup method |
| GB2407013A (en) * | 2003-09-30 | 2005-04-13 | Peter John Jones | Signalling via mains wiring |
| CN102651658A (en) * | 2011-02-23 | 2012-08-29 | 上海芯域微电子有限公司 | Power line carrier communication terminal device |
| CN104170268A (en) * | 2012-03-16 | 2014-11-26 | 住友电气工业株式会社 | Communication device and communication system |
| CN104242987A (en) * | 2013-06-08 | 2014-12-24 | 青岛鼎信通讯股份有限公司 | Balanced transmission technology suitable for low-voltage power line carrier communication |
| CN104779975A (en) * | 2015-02-14 | 2015-07-15 | 云南电网有限责任公司 | A differential coupling communication device of high speed power line carrier system |
| CN204707121U (en) * | 2015-07-04 | 2015-10-14 | 青岛东软载波科技股份有限公司 | The wide-band communication system of multinode low-voltage direct power line |
| CN204886948U (en) * | 2015-08-31 | 2015-12-16 | 浙江方大智控科技有限公司 | Power line carrier signals interconnected circuit |
Non-Patent Citations (2)
| Title |
|---|
| 庄亦琪: "《电子设计可靠性工程》", 30 September 2014 * |
| 渠川璐: "《电子数字计算机实时控制系统》", 31 March 1981 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |