CN202167290U - Transponder data transmission cable - Google Patents
Transponder data transmission cable Download PDFInfo
- Publication number
- CN202167290U CN202167290U CN2011202388723U CN201120238872U CN202167290U CN 202167290 U CN202167290 U CN 202167290U CN 2011202388723 U CN2011202388723 U CN 2011202388723U CN 201120238872 U CN201120238872 U CN 201120238872U CN 202167290 U CN202167290 U CN 202167290U
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- cable
- data transmission
- transmission cable
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Abstract
The utility model discloses a transponder data transmission cable used for a railway train number verification system, which comprises an external protection layer and a cable core. The cable core comprises an alignment group or a star-shaped quad, the diameter of an insulation single-line conductor ranges from 1.31mm to 2.0mm, the cable adopts a double-shielding layer, and a metal row streamline is covered in the external protection layer. The cable has the advantages of being low in direct current resistance and capacitance and accurate and reliable in signal transmission, and is widely applied to data transmission of an electrified railway point type transponder.
Description
Technical field
The utility model relates to a kind of rds data transmission of Information medium, particularly is used for the transponder cable between other point type data processor and station point type data processor.
Background technology
Along with the develop rapidly of electric railway, again and again speed raising of railway locomotive, gather and transmit accurately, reliably automatically, in time running number, in real time data messages such as the speed of a motor vehicle for locomotive safe, at a high speed, planned operation seems particularly important.Therefore; The dot-mode transponder running number of point type data processor, station point type data processor and data cable is confirmed the continuous reliability service of system by must guaranteeing to comprise; Not only to guarantee between the other point type data processor in station point type data processor and road subsequenct call, in time reply, more to guarantee data message such as running number in real time, accurately, transmit reliably.
Yet; Use the data cable between the other point type data processor of point type data processor and road AT STATION at present; Still using " railway signal cable " that satisfy railroad industry standard TB/T2476-1993; This cable conductor is that polyethylene insulation twisted pair wire group or the star quad of 1.0mm constitutes by conductor diameter, the structures shape of this railway signal cable its performance index be difficult to more economical, satisfy running number more reliably and confirm system's new demand that transmission is proposed to specific data information.Although above-mentioned signal cable has reached purpose to a certain extent, its technique effect awaits improving, and especially requires real-time, accuracy and the reliability of data information transfer.
The height of the data transmission credibility of answering machine data transmission cable outside the Pass having with circuit transmission attenuation constant and D.C. resistance, also should reduce the cross-talk of message transmission, improve antijamming capability, and the optimization of these indexs can realize all through architecture advances.Though rds data transmission cable kind is more, performance is different; And set up industry standard; But answering machine data transmission cable is compared with common rds data cable, has different characteristic and designing requirement, and still is not applied to the private cable of railway point transponder data transmission at present.
Summary of the invention
Deficiency to above-mentioned prior art; The purpose of the utility model is to provide a kind of answering machine data transmission cable of special use; Its existing rds data signal cable has lower resistance value and capacitance; Thereby further reduced circuit transmission attenuation constant, realized the reliability of data.
The further purpose of the utility model is this dot-mode transponder data transmission cable, has better shielding properties, thereby effectively improves the interference free performance of cable.
In order to achieve the above object, the utility model provides a kind of dot-mode transponder data transmission cable, and it comprises cable core and outer jacket, and said cable core comprises an a pair of line group or a star quad, and this forms by insulated single wire is stranded line group or star quad; Insulated single wire is that conductor is coated with insulating barrier, and the diameter of said conductor is at 1.31mm-2.0mm.
The dot-mode transponder data transmission cable of the utility model, its protective coverings of cable includes two-layer screen.
The dot-mode transponder data transmission cable of the utility model also is provided with the metal drain wire in the said protective coverings of cable.
After adopting said structure, owing in said cable core, only adopted an a pair of line group or a star quad, thus satisfied the operating characteristic and the designing requirement of answering machine data transmission cable economically.More because the conductor diameter of insulated single wire greater than 1.31mm-2.0mm, has not only been broken through the thinking limitation of formed for a long time railway digital signal cable conductor diameter 1.0mm; And because the increase of conductor diameter, one side has reduced the dc resistance of cable effectively; On the other hand; The increase of conductor diameter; Increased the overall dimension of insulated single wire again, made the centre distance between each insulated single wire become big, the electric capacity between cable loop also decreases; Make the cable transmission attenuation constant reduce so again, thereby further improved the promptness and the reliability of transponder data transmission.Also, more effectively improved the interference free performance of cable, made the transmission of data message become accurate more, reliable because outer jacket has adopted two-layer screen.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Fig. 1 be the utility model to line group cable core dot-mode transponder data transmission cable cross sectional representation.
Fig. 2 is the star quad cable core dot-mode transponder data transmission cable cross sectional representation of the utility model.
Among the figure, the 1-conductor; The 2-insulating barrier; The 3-gasket for packing; The 4-aluminium-plastic tape; The 5-pe sheath; The 6-aluminium sheath; The 7-anticorrosive coat; The 8-steel-tape armouring; The 9-oversheath; The 10-drain wire.
Embodiment
Shown in Figure 1 is the cross sectional representation of a kind of specific embodiment of the utility model, and this answering machine data transmission cable has comprised outer jacket and cable core, and wherein cable core comprises a pair of line group and two gasket for packings 3.
Outer jacket outwards is followed successively by aluminium-plastic tape 4, pe sheath 5, aluminium sheath 6, anticorrosive coat 7, steel-tape armouring 8, oversheath 9 compositions from the lining.Aluminium-plastic tape 4 forms for the thick overlapping vertical bag of embossing aluminium-plastic tape of 0.2mm, and the one side of its metallic aluminium inwardly; The nominal thickness of aluminium sheath 6 is 1.3mm, and anticorrosive coat 7 is outside aluminium sheath 6, to apply the thick PUR of one deck 0.3mm as anticorrosive coat.But outer jacket is not limited to said structure, and those of ordinary skill in the art can adopt universal method to design described outer jacket, thereby satisfy the needs of different use occasions according to the actual use occasion of cable.As make cable have cold-resistant, fire-retardant, waterproof damp proof insulation, protection against rodents, termite-proof etc.The structure of the protective coverings of cable of these types and manufacture craft are all comparatively ripe, repeat no more here.
The cable core of cable is by a pair of line group and two gasket for packing 3 stranded forming.Gasket for packing 3 adopts the polyethylene rope of true qualities; This gasket for packing 3 not only makes the profile of cable keep rounding consistent; And make two insulated single lines of line group are kept stable position and desirable centre distance, gasket for packing 3 also helps improving the tensile strength of cable simultaneously.The line group is comprised two insulated single lines, and this insulated single wire is to be coated with insulating barrier 2 at conductor 1, and insulating barrier 2 adopts vinyon and processes white, two kinds of colors of tangerine respectively.The diameter of conductor 1 is 1.53mm; The big quantum jump of diameter of this conductor 1 " railway signal cable " conductor diameter of generally using now limitation as 1.0mm; The dc resistance that this breakthrough not only makes every conductor of cable drops to that 9.9 Ω/below the km, conductor DC resistance descends exponentially from about 23.5 Ω/km; Increasing, the corresponding of insulating barrier of conductor diameter thicken simultaneously; The conductor distance between centers is increased; Cable mutual capacitance is again to descend; Effectively reduce the cable transmission attenuation constant, increased substantially the electrical performance indexes of cable, strengthened the accuracy and the reliability of dot-mode transponder transfer of data.Certain conductor diameter here is not limited to 1.53mm, but should be 1.31mm at least, preferably is chosen between the 1.3mm-2.0mm, so that cable obtains comparatively perfect performance price ratio; Same gasket for packing also is not limited to polyethylene rope, also can be plant, animal origin rope or other synthetic fiber rope etc.
Have two-layer screen in the outer jacket of cable; This two screen is respectively aluminium-plastic tape 4 and aluminium sheath 6; Adopt double-layer shielding structure to improve shield effectiveness greatly; More existing " railway signal cable " has various structure and stronger antijamming capability, make it further to satisfy the transponder data cable accurately, in time and the specific (special) requirements of high reliability.Shielding layer structure in this structure and material; Can adopt other common structure equally; Can be copper strips (pipe), common steel band (pipe), aluminium strip (pipe), also can be high magnetic conduction steel band, compound copper-plastics band, aluminium-plastic tape, can also be braid over braid of constituting such as steel wire, copper wire, magnetic conduction steel wire or the like.
In outer jacket, with the aluminium face of aluminium-plastic tape 4, be adjacent to mutually and be laid with metal drain wire 10 contiguously, this drain wire 10 is two soft circular copper wires, also can be two tinned wirds.But its radical is not limited to two, can also be one or other radical, and these should be confirmed according to concrete designing requirement.The setting of drain wire 10; The internal shield of both having guaranteed whole cable has identical current potential; Can further improve the shield effectiveness of cable so that the electric charge on the screen metal surface is delivered in the earth through earthing method smoothly to be gone again, guarantee the transponder data reliable information transmission.
Shown in Figure 2 is the cross sectional representation of the another kind of embodiment of the utility model, and this answering machine data transmission cable still comprises outer jacket and cable core.Among this embodiment, except that cable conductor was different with structure shown in Figure 1, other structure was identical.
During this was implemented, the cable core of cable was made up of a star quad, and the insulated single line is stranded forms by four for the star quad, and conductor 1 diameter of insulated single wire still is 1.53mm, and insulating barrier 2 is processed by polyethylene equally; That the insulating barrier of four insulated single lines is respectively is white, blue, tangerine, green four kinds of colors.Need to prove that simultaneously colour code also is not limited to above-mentioned color, only need be to adopt different general colors, so that distinguish.
Above-mentioned only is two kinds of preferential embodiments of the utility model; Those of ordinary skill in the art is on the basis of the utility model principle; Can also make some conversion and improvement, but these technical solutions that are equal to mutually fall into all in the protection range that the utility model claims are limited.
Claims (6)
1. an answering machine data transmission cable comprises cable core and outer jacket, it is characterized in that: said cable core comprises an a pair of line group or a star quad, and this forms by insulated single wire is stranded line group or star quad; Insulated single wire is that conductor (1) is coated with insulating barrier (2), and the diameter of said conductor (1) is 1.31mm-2.0mm.
2. dot-mode transponder data transmission cable according to claim 1 is characterized in that: said conductor diameter is 1.53mm.
3. dot-mode transponder data transmission cable according to claim 1 is characterized in that: said outer jacket includes two-layer screen.
4. dot-mode transponder data transmission cable according to claim 3 is characterized in that: said two-layer screen is respectively aluminium-plastic tape (4) and aluminium sheath (6).
5. dot-mode transponder data transmission cable according to claim 1 is characterized in that: said line group cable core is also comprised two gasket for packings (3).
6. dot-mode transponder data transmission cable according to claim 5 is characterized in that: said gasket for packing (3) is a polyethylene rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202388723U CN202167290U (en) | 2011-07-06 | 2011-07-06 | Transponder data transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202388723U CN202167290U (en) | 2011-07-06 | 2011-07-06 | Transponder data transmission cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167290U true CN202167290U (en) | 2012-03-14 |
Family
ID=45803102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202388723U Expired - Lifetime CN202167290U (en) | 2011-07-06 | 2011-07-06 | Transponder data transmission cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202167290U (en) |
-
2011
- 2011-07-06 CN CN2011202388723U patent/CN202167290U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |