CN101072050A - System for data transmission via metal pipeline - Google Patents
System for data transmission via metal pipeline Download PDFInfo
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- CN101072050A CN101072050A CN 200710119064 CN200710119064A CN101072050A CN 101072050 A CN101072050 A CN 101072050A CN 200710119064 CN200710119064 CN 200710119064 CN 200710119064 A CN200710119064 A CN 200710119064A CN 101072050 A CN101072050 A CN 101072050A
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Abstract
The system includes following parts: at least data signal transmission (DST) unit; at least data signal reception (DSR) unit; and metallic pipe for data interaction. DST unit includes: a modem at input end in use for converting digital signal to analog signal; a signal coupler at input end in use for coupling analog signal to the metallic pipe. DSR unit includes: a signal coupler at output end in use for decoupling analog signal transferred through the metallic pipe; a modem at output end in use for converting analog signal to digital signal. The metallic pipe is as channel of data transmission. The system also includes a power supply in use for supplying power for the modems. The invention reaches purpose for transmitting data through metallic pipes.
Description
Technical field
What the present invention relates to is a kind of system of transfer of data, particularly be a kind of system that carries out transfer of data by metallic conduit.
Background technology
Along with the development of information technology, data communication system in the market usually with optical cable, coaxial cable, ethernet line, power line etc. as transmission medium.But for the transfer of data under some particular surroundingss, owing to need setting up of respective transmissions medium, increased the cost of transmission data to a great extent, also be easy to owing to dielectric breakdown produces the not smooth problem of communication simultaneously, the application of wireless data communication technology is more prevalent, but it exists serious stopping to decay and communication blind district.
For existing building, metallic conduits such as gas pipeline, caliduct, water supply pipe, security protection spray piping have become the indispensable structural detail of building itself, on the traditional sense because they want ground connection usually, very difficult signal is transmitted offered help, creator of the present invention has for this reason obtained a kind of brand-new transmission method finally through studying for a long time and testing, and solves the problems referred to above.
Summary of the invention
The objective of the invention is to, provide a kind of and carry out the system of transfer of data, in order to overcome above-mentioned defective by metallic conduit.
For achieving the above object, the invention provides and a kind ofly carry out the system of transfer of data by metallic conduit, it comprises: at least one data signal transmission unit, at least one data-signal receiving element and in order to realize the metallic conduit of both data interactions; Wherein, described data signal transmission unit comprises:
One input modulator-demodulator, it is converted into analog signal with digital signal;
One input end signal coupler, it injects described metal tube with described analog signal, and transmits;
Described data-signal receiving element comprises: an output end signal coupler, and it will extract the analog signal of transmitting on the described metal tube;
One output modulator-demodulator, it is converted into digital signal with described analog signal;
Described metallic conduit, it is the passage of transfer of data;
Also comprise a power supply, in order to described modulator-demodulator is powered;
Preferable, described signal coupler is that two semicircular structures are formed, and both are symmetrical, it is characterized in that, and first comprises: encapsulated layer, grounded parts, magnetic material, coil and connector; Second portion comprises: encapsulated layer, magnetic material; Wherein, the magnetic material of described first is the semi-ring shape, described coil winding is on described semicircular magnetic material, the two ends of described coil are electrically connected with described connector, connector shell is connected by steel structure spare with grounded parts, described encapsulated layer is packaged into an integral body with grounded parts, magnetic material, coil, and described connector and grounded parts are exposed to the encapsulated layer outside; The magnetic material of described second portion is the semi-ring shape, and described encapsulated layer is packaged into an integral body with the magnetic material; During work, described two parts are lumped together, form a complete circulus;
Preferable, also comprising a securing member, described securing member is surrounded the described integral body that is packaged into, in order to keep loop configuration; Described securing member is formed for the stainless steel metal material;
Preferable, for the broadband, operating frequency: 2MHz-40MHz, the single-turn circular coil that described coil forms for the coaxial cable coiling;
Preferable, for the arrowband, operating frequency: 9kHz-500kHz, described coil are 3 to the 8 circle coils that the coiling of the withstand voltage cable of 2500V at least forms;
Preferable, described magnetic material is ferrite magnetic material or amorphous magnetic material;
Preferable, described connector is the BNC connector connector;
Preferable, an end of described grounded parts is provided with an earth terminal, and it is exposed to outside the described encapsulated layer;
Preferable, the material of described encapsulated layer is an epoxy resin;
Preferable, for the broadband, also comprising a U type metal shell, described metal shell is with described loop configuration inwall, outer wall and the whole parcel of going to the bottom, and the termination of adapter connector and grounded parts is exposed to the metal shell outside, forms a U font.
The invention has the advantages that, rely on existing metallic conduit to carry out transfer of data, construction is simple, and cost is low, signal stabilization.
Description of drawings
Fig. 1 carries out the structure diagram of the system of transfer of data by metallic conduit for the present invention;
Fig. 2 carries out the profile of signal coupler of the system of transfer of data by metallic conduit for the present invention;
Fig. 3 carries out embodiment one structural representation of the system of transfer of data by metallic conduit for the present invention;
Fig. 4 carries out embodiment two structural representations of the system of transfer of data by metallic conduit for the present invention.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1ly, it carries out the structure diagram of the system of transfer of data for the present invention by metallic conduit; It comprises: at least one data signal transmission unit, at least one data-signal receiving element and the metallic conduit 2 in order to realize both data interactions; In fact data signal transmission unit and data-signal receiving element can send and received signal, that is to say that the data here is duplexing, and wherein, described data signal transmission unit comprises:
One input modulator-demodulator 12, it is converted into analog signal with digital signal, the signal that these digital signals insert by ethernet line/USB line or RS-232/RS-485 line from communication equipments such as computer, switch, router, information gathering equipment 4;
One input end signal coupler 11, it injects transmission with described analog signal on described metal tube 2;
Described data-signal receiving element comprises: an output end signal coupler 51, and it will extract the analog signal of transmission on the described metal tube 2;
One output modulator-demodulator 52, it is converted into digital data transmission with described analog signal and gives general communication equipment 4;
Described metallic conduit 2, it is the passage of transfer of data;
Also comprise a power supply 31,32, in order to described input modulator-demodulator 12 and output modulator-demodulator 52 are powered.
Wherein, described input modulator-demodulator 12 is by the processing of its inner OFDM multiple technologies such as (Orthodoxy Frequency Division Multiplexs), and the digital signal of routine is converted into analog signal; 52 of described output modulator-demodulators are opposite, and the analog signal that receives is converted into conventional digital signal;
Described OFDM is the signal modulation technique that has been widely used in the communications field at present, modulate by OFDM, the working frequency range of input and output modulator- demodulator 12,52 is divided into mutually orthogonal a plurality of subchannels, each subchannel absolute coding modulation, this transmission mode can effectively be resisted signal of communication delay problem and the multipath fading problem in the complex environment, under some adverse environment, or desirability can also shield wherein some subchannel, when guaranteeing transmission quality, avoid and miscellaneous equipment between interference; The analog signal port of described input modulator-demodulator 12 and output modulator-demodulator 52 is connected respectively on input end signal coupler 11 and the output end signal coupler 51 by holding wire, described input and output modulator- demodulator 12,52 comprise power interface, data-interface and analog signal interface, comprise that so the multiple packets that satisfy procotol such as data, video, audio frequency can both transmit by it; The data-interface of described input or output modulator- demodulator 12,52 can be other data signal interfaces such as ethernet line interface, USB interface or RS-232/RS-485.
For the present invention, its key point is input and output end signal coupler 11,51, for different situation requirements, the physical condition of described signal coupler self has different and difference with requirement, its input impedance is by the decision of the matching of the output impedance of the modulator-demodulator that combines with it, for the present invention, for the broadband, operating frequency: 2MHz-40MHz; Insulation resistance: 100M Ω; Input impedance: 50 Ω; Signal attenuation:＜4 ± 2dB; Withstand voltage: 5kV.
See also shown in Figure 2ly, it carries out the profile of signal coupler of the system of transfer of data by metallic conduit for the present invention; It partly is made up of two semi-ring shapes, both are symmetrical, its difference is, a part therein with respect to another part many winding coil 116, grounding assembly and BNC connector connector 115, what this cutaway view reflected is exactly the structure of this part, it comprises: encapsulated layer 113, grounded parts, magnetic material 114, coil 116 and BNC connector connector 115, and it is the semi-ring shape; Described coil is the single-turn circular coil that 50 ohm coaxial cable coilings form, its winding is on described semicircular magnetic material, the two ends of described single-turn circular coil are electrically connected with described BNC connector connector 115, the BNC connector shell is connected by steel structure spare with grounded parts, described encapsulated layer 113 is an epoxy resin, it is packaged into an integral body with above-mentioned grounded parts, magnetic material 114, coil 116, and described connector 115 and grounded parts are exposed to encapsulated layer 113 outsides; Described grounding assembly is that it is embedded in the described encapsulated layer 113 by a grounded metal sheet 112, is provided with an earth terminal 111 in its outer end, and it is exposed to outside the described encapsulated layer 113;
The magnetic material 114 of another part also is the semi-ring shape, and the epoxide resin material of described encapsulated layer 113 is packaged into an integral body with magnetic material 114; For the broadband; can also comprise a U type metal shell 117; described metal shell 117 is with described loop configuration inwall, outer wall and the whole parcel of going to the bottom; the termination 111 of adapter connector 115 and grounded parts is exposed to the metal shell outside; form a U font; it not only plays the effect of protection coupler, can also shield a part of external disturbance simultaneously.
In use, two semi-rings are buckled on the metallic conduit, the described integral body that is packaged into are surrounded, in order to keep loop configuration by a securing member; Described securing member is formed for the stainless steel metal material, and described BNC connector connector 115 links to each other with a modulator-demodulator analog signal port, and earth terminal 11 can unsettledly also can be connected with the earth terminal of described modulator-demodulator.
The selection of magnetic material is extremely important for input of the present invention and output end signal coupler 11,51, because metallic conduit 2 transmission signals belong to small-signal, the bandwidth that suitable scope is arranged, require loss little during signal transformation, selection to magnetic material has certain requirement: so the present invention is to coupler, option is with the magnetic material of high μ magnetic permeability, to the tiny signal sensitivity; Magnetic hysteresis loop is narrow, and it is little to enclose area, has very little coercivity H, and magnetic hysteresis loss Ph is little; It is big that the resistivity of magnetic material is wanted, thereby eddy current loss Pe is little; It is high that operating frequency is wanted, and is fit to the big conversion of signals of bandwidth; Therefore we select ferrite magnetic material or amorphous magnetic material.
Certainly above it is emphasized that to one of basis of the requirement of described coupler structure for its corresponding bandwidth is the broadband, for the arrowband, operating frequency: 9kHz-500kHz; Insulation resistance: 100M Ω; Input impedance: 600 Ω; Signal attenuation:＜4 ± 2dB; Withstand voltage: 5kV, described coil are that 3 to the 8 circle coils that the coiling of the withstand voltage cable of 2500V at least forms get final product.
See also shown in Figure 3ly, it carries out embodiment one structural representation of the system of transfer of data for the present invention by metallic conduit; It is that metallic conduit with the heating system in three-storey building building is as transmission medium, the metal pipe line of described heating system divides southern trunk line S and northern trunk line N two-way, connect by the main valve V between the two-way, four node A on the metal pipe line of described heating system, have been chosen respectively, B, C, D, interaction end as the input and output of metallic conduit data-signal, a coupler a1 is set respectively thereon, b1, c1, d1, the described coupler (not shown) that links to each other with the analog signal port of described modulator-demodulator respectively, can regard each coupler as and be attached thereto all corresponding terminal of the modulator-demodulator that connects and all receive and be connected, can carry out data interaction between them with transmitting apparatus with signal.
See also shown in Figure 4ly, it is the embodiment of the supervisory control system of being derived based on above-mentioned several node; Is example as an image digital signal transmitting terminal and Node B as an image digital signal receiving terminal with node A, if the input modem a2 of described data signal transmission unit links to each other with described network video server a3, the picture signal that video camera a4 collects is transmitted, just be can be used as supervisory control system and use.Described input modulator-demodulator a2 changes picture signal into high-frequency signal and is injected on the metallic conduit 2 by input coupler a1, passing concrete walls 21 by metallic conduit 2 transmits, in the Node B of metallic conduit 2 far-ends same output coupler b1 and output modulator-demodulator b2 and corresponding display device b3 are installed, described output coupler b1 extracts analog signal, utilize signal wire transmits to arrive output modulator-demodulator b2 analog signal port, to demodulate digital signal in described output modulator-demodulator b2 inside, and transfer to described display device b3 and show.
Need to prove that this is that the present invention derives,, also have other application example just to repeat no more here at a kind of specific embodiment of application facet.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1, a kind ofly carries out the system of transfer of data, it is characterized in that it comprises: at least one data signal transmission unit, at least one data-signal receiving element and in order to realize the metallic conduit of both data interactions by metallic conduit; Wherein, described data signal transmission unit comprises:
One input modulator-demodulator, it is converted into analog signal with digital signal;
One input end signal coupler, it is injected into described analog signal on the described metal tube, transmits;
Described data-signal receiving element comprises: an output end signal coupler, and it will extract the analog signal of transmitting on the described metal tube;
One output modulator-demodulator, it is converted into digital signal with described analog signal;
Described metallic conduit is the passage of transfer of data;
Also comprise a power supply, in order to described modulator-demodulator is powered.
2, according to claim 1ly carry out the system of transfer of data, it is characterized in that described signal coupler by metallic conduit, be that two semicircular structures are formed, both are symmetrical, it is characterized in that, first comprises: encapsulated layer, grounded parts, magnetic material, coil and connector; Second portion comprises: encapsulated layer, magnetic material; Wherein,
The magnetic material of described first is the semi-ring shape, described coil winding is on described semicircular magnetic material, the two ends of described coil are electrically connected with described connector, connector shell is connected by steel structure spare with grounded parts, described encapsulated layer is packaged into an integral body with grounded parts, magnetic material, coil, and described connector and grounded parts are exposed to the encapsulated layer outside;
The magnetic material of described second portion is the semi-ring shape, and described encapsulated layer is packaged into an integral body with the magnetic material;
During work, described two parts are lumped together, form a complete circulus.
3, according to claim 2ly carry out the system of transfer of data, it is characterized in that also comprise a securing member, described securing member is surrounded the described integral body that is packaged into, in order to keep loop configuration by metallic conduit; Described securing member is formed for the stainless steel metal material.
4, according to claim 2ly carry out the system of transfer of data, it is characterized in that by metallic conduit, for the broadband, operating frequency: 2MHz-40MHz, the single-turn circular coil that described coil forms for the coaxial cable coiling.
5, according to claim 2ly carry out the system of transfer of data, it is characterized in that for the arrowband, operating frequency: 9kHz-500kHz, described coil are 3 to the 8 circle coils that the coiling of the withstand voltage cable of 2500V at least forms by metallic conduit.
6, according to claim 2ly carry out the system of transfer of data, it is characterized in that described magnetic material is ferrite magnetic material or amorphous magnetic material by metallic conduit.
7 according to claim 2ly carry out the system of transfer of data by metallic conduit, it is characterized in that described connector is the BNC connector connector.
8, according to claim 2ly carry out the system of transfer of data by metallic conduit, it is characterized in that an end of described grounded parts is provided with an earth terminal, it is exposed to outside the described encapsulated layer.
9, according to claim 2ly carry out the system of transfer of data, it is characterized in that the material of described encapsulated layer is an epoxy resin by metallic conduit.
10, metal pipeline data transmission coupler according to claim 2, it is characterized in that, for the broadband, also comprise a U type metal shell, described metal shell is with described loop configuration inwall, outer wall and the whole parcel of going to the bottom, the termination of adapter connector and grounded parts is exposed to the metal shell outside, forms a U font.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101190643A CN101072050B (en) | 2007-06-19 | 2007-06-19 | System for data transmission via metal pipeline |
| PCT/CN2007/003312 WO2008154778A1 (en) | 2007-06-19 | 2007-11-22 | Coupler for metallic conduit data transmitting, processing method and data transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101190643A CN101072050B (en) | 2007-06-19 | 2007-06-19 | System for data transmission via metal pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101072050A true CN101072050A (en) | 2007-11-14 |
| CN101072050B CN101072050B (en) | 2010-08-25 |
Family
ID=38899068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101190643A Expired - Fee Related CN101072050B (en) | 2007-06-19 | 2007-06-19 | System for data transmission via metal pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101072050B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008154778A1 (en) * | 2007-06-19 | 2008-12-24 | Beijing Ecom Communications Technology Co., Ltd. | Coupler for metallic conduit data transmitting, processing method and data transmitting system |
| CN110211361A (en) * | 2019-07-03 | 2019-09-06 | 安徽大学 | A kind of self-service meter register method of domestic gas and its self-service kilowatt meter recorder |
| CN110701426A (en) * | 2019-11-14 | 2020-01-17 | 西南石油大学 | Two-way communication system of intelligent pipeline plugging robot |
| CN111189081A (en) * | 2018-11-14 | 2020-05-22 | 宁波方太厨具有限公司 | Central flue system |
| CN111345015A (en) * | 2017-07-17 | 2020-06-26 | Zn科技株式会社 | Communication device and method in ship |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2785017B1 (en) * | 1998-10-23 | 2000-12-22 | Geoservices | ELECTROMAGNETIC WAVE INFORMATION TRANSMISSION METHOD AND SYSTEM |
| US7040415B2 (en) * | 2003-10-22 | 2006-05-09 | Schlumberger Technology Corporation | Downhole telemetry system and method |
| CN100395786C (en) * | 2004-01-08 | 2008-06-18 | 苏州银河龙芯科技有限公司 | Pipeline sonic wave digital communicaton technology |
| CN1588819B (en) * | 2004-09-28 | 2010-12-08 | 友达光电股份有限公司 | Information transmission system and method and its output signal driving device |
-
2007
- 2007-06-19 CN CN2007101190643A patent/CN101072050B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008154778A1 (en) * | 2007-06-19 | 2008-12-24 | Beijing Ecom Communications Technology Co., Ltd. | Coupler for metallic conduit data transmitting, processing method and data transmitting system |
| CN111345015A (en) * | 2017-07-17 | 2020-06-26 | Zn科技株式会社 | Communication device and method in ship |
| CN111345015B (en) * | 2017-07-17 | 2022-05-31 | Zn科技株式会社 | Communication device and method in ship |
| US11362422B2 (en) | 2017-07-17 | 2022-06-14 | Zn Technologies Co., Ltd. | Device and method for intra-ship communication |
| CN111189081A (en) * | 2018-11-14 | 2020-05-22 | 宁波方太厨具有限公司 | Central flue system |
| CN110211361A (en) * | 2019-07-03 | 2019-09-06 | 安徽大学 | A kind of self-service meter register method of domestic gas and its self-service kilowatt meter recorder |
| CN110211361B (en) * | 2019-07-03 | 2020-08-28 | 安徽大学 | Household gas self-service meter reading method and device |
| CN110701426A (en) * | 2019-11-14 | 2020-01-17 | 西南石油大学 | Two-way communication system of intelligent pipeline plugging robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101072050B (en) | 2010-08-25 |
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