CN101930809A - Outdoor surface security-protection monitoring bonding wire and production method thereof - Google Patents
Outdoor surface security-protection monitoring bonding wire and production method thereof Download PDFInfo
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- CN101930809A CN101930809A CN2009101898389A CN200910189838A CN101930809A CN 101930809 A CN101930809 A CN 101930809A CN 2009101898389 A CN2009101898389 A CN 2009101898389A CN 200910189838 A CN200910189838 A CN 200910189838A CN 101930809 A CN101930809 A CN 101930809A
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Abstract
The invention relates to a monitoring cable for a closed-circuit television monitoring system in a city security-protection system, in particular to an outdoor surface security-protection monitoring bonding wire and a production method thereof. The outdoor surface security-protection monitoring assembled cable comprises an outer sheath and a ground wire arranged in the outer sheath, wherein the ground wire is arranged at the axis of the outer sheath; a power line, a CCTV radio frequency cable and a control signal wire are arranged around the ground wire at even angular intervals; and the power line, CCTV radio frequency cable and control signal wire are evenly distributed at 120-degree intervals by using the ground wire as the axis of the bonding wire. The invention has the beneficial effects of saving the expense on respectively introducing multiple wires into the laid pipes, reducing the engineering cost, enhancing the social benefit, centrally solving the electromagnetic interference caused by mutual laying of the multiple wires, preventing the lightning waves from intruding the device along the transmission line, directly connecting the lightning induction electromagnetic wave to the ground wire, enhancing the engineering quality of the closed-circuit monitoring system and ensuring the stable operation of the system.
Description
Technical field
The present invention relates to a kind of monitoring cable that is used for city security protection system closed-circuit TV monitoring system, refer more particularly to a kind of common ground line that utilizes, power line, CCTV radio frequency cable, control signal wire simultaneously around earth connection, are eliminated outside and electromagnetic outdoor surface security-protection monitoring bonding wire of internal interference and production method thereof from cable.
Background technology
Closed-circuit TV monitoring system (cctv) is used more and more in city security protection system, because outdoor electric circumstance more complicated, form various interference sources easily, can enter closed-circuit TV monitoring system by transmission cable, cause phenomenons such as the decline of video image quality, system's Control Failure, fluctuation of service; Simultaneously, thunder and lightning also can impact: the direct lightning strike waveform is 10/350us; Conduction thunder (lightning wave intrusion) is (several kilometers even tens kilometers) in the larger context, and effects of lightning closed-circuit TV monitoring system transmission line is invaded equipment along transmission line then, to the internal unit formation earth potential counterattack of closed-circuit TV monitoring system.
Therefore, the anti-interference safeguard procedures of cctv surveillance cable are the subject matter that solves cctv surveillance outsidepiston in the security protection system.Interference source character and safeguard procedures at the cctv surveillance cable, to solve the interference problem of cctv surveillance outsidepiston in the security protection system, improve the closed monitor system project quality, guarantee that the stable operation of system is highly profitable, more than the become present industry difficult problem being badly in need of solving.
In Fig. 1, interference source (output of system A) with disturbed body (input of system B) go the same way through and during a shared ground wire, then because the output current of A flows through the common impedance of X-X section, produce voltage, the input voltage V of system B at the input of B
B=V
In+ V, V=-Ldi/dt, the impedance of the lead of common impedance is perception, and therefore high frequency in the output or high di/dt component are with easier coupling.When exporting and importing at same system, common impedance constitutes oscillating circuit.
Based on the Analysis on development of above-mentioned existing industry technology, the inventor has developed the present invention's a kind of " outdoor surface security-protection monitoring bonding wire and production method thereof ".
Summary of the invention
The present invention be directed to closed-circuit TV monitoring system outdoor various interference sources in city security protection system, enter the solution demand of the interference problem that closed-circuit TV monitoring system produces by transmission cable, a kind of outdoor surface security-protection monitoring bonding wire and production method thereof are provided.A kind of common impedance coupling elimination electromagnetic wave principle of the inner shared ground wire of cable of utilizing is carried out structural design, the mutual signal interference and the thunder and lightning that are about to the inside and outside disturb electromagnetic wave glued together with the conduction fire retardant glue by the shield external layer of the wire harness of ground connection and line feeder and each function lead.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of outdoor surface security-protection monitoring bonding wire, comprise oversheath and be located at the interior earth connection of oversheath, its described earth connection is located at the oversheath axle center, homogeneous angular is provided with power line, CCTV radio frequency cable and control signal wire around earth connection, power line, CCTV radio frequency cable and control signal wire are pressed 120 ° of distribution equalizing structure settings with earth connection as the axle center of assemble line, eliminate from outside with the inner interference electromagnetic wave of oversheath; The inner filled conductive fire retardant glue of oversheath, the earth connection in conduction fire retardant glue and the oversheath constitutes the lightning protection path, makes the lightning protection wave interference ability/performance boost of cable, improves the overall mechanical strength of assemble line simultaneously.
The injection mo(u)lding simultaneously of described power line, CCTV radio frequency cable and control signal wire is in oversheath inside.
Be provided with the heart yearn screen between described power line, CCTV radio frequency cable, control signal wire and the oversheath.
Be provided with the conduction fire retardant glue between described power line, CCTV radio frequency cable, control signal wire and the heart yearn screen.Earth connection in conduction fire retardant glue and the cable and line feeder constitute good lightning protection path, make the lightning protection wave interference ability/performance boost of cable, improve the overall mechanical strength of cable simultaneously.
Described CCTV radio frequency cable is the SYV-75-5/3 series lines.
Described earth connection is cross section 4mm
2Single core copper cash or cross section 4mm
2One above copper plated steel silk thread.Indirect ground wire (core) is the symmetrical then stranding of the single core copper cash of the 4 squares of mm in cross section, the symmetrical cable structure is because the interchangeability of lead, better electromagnetic compatibility is arranged, play a role to suppressing the thunder and lightning interference, can offset the humorous odd frequency in that of high order, improve the anti-interference of cable, reduced the electromagnetic radiation in the whole system.
Described oversheath is the industrial grade PVC sheath of orange anti-oil.
A kind of production method of above-mentioned outdoor surface security-protection monitoring bonding wire, it is characterized in that this production method at first uses the axle center of earth connection as assemble line, at first successively 3 functional lines of assemble line are adopted the typing of spraying conducting resinl method by 120 ° of symmetry combination backs as the axle center of assemble line with earth connection, form the stable construction of cable, this construction of cable and earth connection sticked with glue connect last and oversheath injection mo(u)lding together.
The beneficial effect of a kind of outdoor surface security-protection monitoring bonding wire of the present invention and production method thereof is:
It is a kind of special cable that video, power supply, signal, control etc. are combined that collects, the cctv surveillance exterior components uses in its compact conformation, easy for installation, the suitable city security protection system, the present invention utilizes the common ground line, power line, CCTV radio frequency cable, control signal wire is centered on earth connection simultaneously, eliminates from outside with the inner interference electromagnetic wave of cable; Earth connection and line feeder in inner filled conductive fire retardant glue of cable and the cable constitute good lightning protection path, make the lightning protection wave interference ability/performance boost of cable, improve the overall mechanical strength of cable simultaneously.Have following characteristics:
1), saved that multiple lead is introduced the expense of stringing respectively, to reduce engineering cost about 50%～75%, promoted social benefit (energy-conserving and environment-protective) simultaneously;
2), the solution of Ji Zhonging the electromagnetic interference that causes mutually during multiple conductor laying;
3), reduced lightning wave and invaded equipment along transmission line, the internal unit of closed-circuit TV monitoring system is formed the earth potential counterattack, make the lightning induction electromagnetic wave directly into ground wire.
4), solved the interference problem of cctv surveillance outsidepiston in the security protection system, improve the closed monitor system project quality, guarantee the stable operation of system.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a conductibility common impedance coupled structure schematic diagram of the present invention;
Fig. 2 is the common impedance coupled structure schematic diagram that utilizes shared ground wire of the present invention;
Fig. 3 is a magnetic field induction structural representation of the present invention;
Fig. 4 is an electric field induction structural representation of the present invention;
Fig. 5 is a cross section structure schematic diagram of the present invention;
Fig. 6 is a gamma camera traditional wiring profile schematic diagram;
Fig. 7 is a gamma camera traditional wiring inner wire schematic diagram;
Fig. 8 is a gamma camera traditional wiring bottom hookup wire schematic diagram.
Description of reference numerals:
1, oversheath 2, earth connection 3, power line
4, CCTV radio frequency cable 5, control signal wire 6, heart yearn screen
7, conduction fire retardant glue
Embodiment
A kind of outdoor surface security-protection monitoring bonding wire and the production method thereof that the technical program are provided below in conjunction with embodiment.
The present invention implements like this:
In Fig. 2 to Fig. 8, a kind of outdoor surface security-protection monitoring bonding wire, comprise oversheath 1 and the earth connection of being located in the oversheath 12, described earth connection 2 is located at oversheath 1 axle center, and homogeneous angular is provided with power line 3, CCTV radio frequency cable 4 and control signal wire 5 around earth connection 2; Power line 3, CCTV radio frequency cable 4 and control signal wire 5 are pressed 120 ° of distribution equalizing structure settings with earth connection 2 as the axle center of assemble line, eliminate from outside with the inner interference electromagnetic wave of cable; The fire retardant glue of the inner filled conductive of cable and the earth connection in the cable and line feeder constitute good lightning protection path, make the lightning protection wave interference ability/performance boost of cable, improve the overall mechanical strength of cable simultaneously.
In the present embodiment, power line 3, CCTV radio frequency cable 4 and control signal wire 5 injection mo(u)ldings simultaneously are in oversheath 1 inside.Be provided with heart yearn screen 6 between power line 3, CCTV radio frequency cable 4, control signal wire 5 and the oversheath 1, be provided with conduction fire retardant glue 7 between power line 3, CCTV radio frequency cable 4, control signal wire 5 and the heart yearn screen 6.CCTV radio frequency cable 4 is the SYV-75-5/3 series lines.Earth connection 2 is cross section 4mm
2Single core copper cash or cross section 4mm
2One above copper plated steel silk thread.
Described oversheath 1 is the industrial grade PVC sheath of orange anti-oil.
A kind of production method of above-mentioned outdoor surface security-protection monitoring bonding wire, this production method is at first used the axle center of earth connection 2 as assemble line, at first successively 3 functional lines of assemble line are adopted the typing of spraying conducting resinl method by 120 ° of symmetry combination backs as the axle center of assemble line with earth connection 1, form the stable construction of cable, this construction of cable and earth connection 2 sticked with glue connect last and oversheath 1 injection mo(u)lding together.
In Fig. 5, the outdoor surface security-protection monitoring bonding wire structure as shown in the figure with the power line in the outdoor surface security-protection monitoring bonding wire 3, CCTV radio frequency cable 4 and control signal wire 5 with the axle center of earth connection 2 as assemble line, by 120 ° of distribution equalizing structure settings (combining form of anti-electromagnetic interference), and injection mo(u)lding simultaneously is in oversheath 1 inside.
Utilize the earth connection 2 at outdoor surface security-protection monitoring bonding wire center glued together with the heart yearn screen 6 usefulness conducting resinls of power line 3, CCTV radio frequency cable 4 and control signal wire 5.
Indirect ground wire 2 (core) is the single core copper cash of the 4 squares of mm in cross section, uniform then stranding, the uniform construction of cable is because the compound lay of lead, better electromagnetic compatibility is arranged, play a role to suppressing electromagnetic interference, can offset the humorous odd frequency in that of high order, improve the anti-interference of cable, reduce the electromagnetic radiation in the whole system.
Three built-in cable group+center ground wires (the 4 squares of mm in cross section) stranded stranding of single core copper cash, stranding direction are dextrad, and pitch is 12～15 times of cable size.
When the interference source among Fig. 1 (output of system A) with disturbed body (input of system B) go the same way through and during a shared ground wire, then because the output current of A flows through the common impedance of X-X section, produce voltage, the input voltage V of system B at the input of B
B=V
In+ V, V=-Ldi/dt, the impedance of the lead of common impedance is perception, and therefore high frequency in the output or high di/dt component are with easier coupling.When exporting and importing at same system, common impedance constitutes oscillating circuit.The present invention utilizes the HW highway earth connection, as shown in Figure 2, designs a common ground line, and power line 3, CCTV radio frequency cable 4 and control signal wire 5 simultaneously around earth connection 2, are eliminated from outside with the inner interference electromagnetic wave of cable.System 1 in Fig. 2 and system 2 mutual interference mutually, in Fig. 3, the alternating current that flows in the conductor fails to be convened for lack of a quorum and produces magnetic field, and this magnetic field will be coupled with the conductor that closes on, and induce voltage thereon.In Fig. 4, the alternating voltage on the conductor produces electric field, this electric field and the conductor coupling that closes on, and induce voltage thereon.
Among the outdoor monitor camera figure in Fig. 6 and Fig. 7, outdoor monitor camera adopts three kinds of traditional holding wire configuration schematic diagram, is difficult to constitute the overall structure of anti electromagnetic wave like this, and Fig. 8 is outdoor monitor camera signal wire interface structure chart.
The test result of present embodiment is as follows:
1). cable is with reference to external diameter: 12mm;
2). cable core structure: 1 * 3;
3). pair twist group mutual capacitance :≤70nF;
4). three groups of mutual capacitance :≤50nF of star;
5). alarm signal line insulation resistance: 〉=3000M Ω/km.
The above, it only is a kind of preferred embodiment of outdoor surface security-protection monitoring bonding wire of the present invention and production method thereof, be not that technical scope of the present invention is imposed any restrictions, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention above any trickle modification, equivalent variations and modification that embodiment did.
Claims (8)
1. outdoor surface security-protection monitoring bonding wire, comprise oversheath (1) and be located at the interior earth connection (2) of oversheath (1), it is characterized in that: described earth connection (2) is located at oversheath (1) axle center, homogeneous angular is provided with power line (3), CCTV radio frequency cable (4) and control signal wire (5) around earth connection (2), power line (3), CCTV radio frequency cable (4) and control signal wire (5) are pressed 120 ° of distribution equalizing structure settings with earth connection (2) as the axle center of assemble line, eliminate from outside with the inner interference electromagnetic wave of oversheath (1); The inner filled conductive fire retardant glue of oversheath (1) (7), conduction fire retardant glue (7) and interior earth connection (2) the formation lightning protection path of oversheath (1) make the lightning protection wave interference ability/performance boost of cable, improve the overall mechanical strength of assemble line simultaneously.
2. outdoor surface security-protection monitoring bonding wire according to claim 1 is characterized in that the injection mo(u)lding simultaneously of described power line (3), CCTV radio frequency cable (4) and control signal wire (5) is in oversheath (1) inside.
3. outdoor surface security-protection monitoring bonding wire according to claim 1 and 2 is characterized in that being provided with heart yearn screen (6) between described power line (3), CCTV radio frequency cable (4), control signal wire (5) and the oversheath (1).
4. outdoor surface security-protection monitoring bonding wire according to claim 1 is characterized in that being filled with between described power line (3), CCTV radio frequency cable (4), control signal wire (5) and the heart yearn screen (6) conduction fire retardant glue (7).
5. outdoor surface security-protection monitoring bonding wire according to claim 1 is characterized in that described CCTV radio frequency cable (4) is the SYV-75-5/3 series lines.
6. outdoor surface security-protection monitoring bonding wire according to claim 1 is characterized in that described earth connection (2) is cross section 4mm
2Single core copper cash or cross section 4mm
2One above copper plated steel silk thread.
7. outdoor surface security-protection monitoring bonding wire according to claim 1 is characterized in that described oversheath (1) is the industrial grade PVC sheath of orange anti-oil.
8. the production method of an above-mentioned outdoor surface security-protection monitoring bonding wire, it is characterized in that this production method at first uses the axle center of earth connection (2) as assemble line, at first use earth connection (2) successively power line (3), CCTV radio frequency cable (4), control signal wire (5) to be adopted the typing of spraying conducting resinl method by 120 ° of symmetry combination backs as the axle center of assemble line, form the stable construction of cable, this construction of cable and earth connection (2) sticked with glue connect last and oversheath (1) injection mo(u)lding together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910189838A CN101930809B (en) | 2009-09-01 | 2009-09-01 | Outdoor surface security-protection monitoring bonding wire and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910189838A CN101930809B (en) | 2009-09-01 | 2009-09-01 | Outdoor surface security-protection monitoring bonding wire and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101930809A true CN101930809A (en) | 2010-12-29 |
| CN101930809B CN101930809B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910189838A Active CN101930809B (en) | 2009-09-01 | 2009-09-01 | Outdoor surface security-protection monitoring bonding wire and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360607A (en) * | 2011-09-13 | 2012-02-22 | 苏州科宝光电科技有限公司 | Cable for solar power generation |
| CN107613187A (en) * | 2017-11-10 | 2018-01-19 | 彭从文 | Anti-interference security monitoring device |
| CN108022687A (en) * | 2016-10-30 | 2018-05-11 | 镇江亚昆机械有限公司 | A kind of copper core cloth cable |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049021A (en) * | 1990-08-28 | 1991-02-06 | 刘继 | Explosion-proof conducting gel |
| CN2296556Y (en) * | 1997-01-17 | 1998-11-04 | 盖州市特种电缆厂 | High temperature resistant fire-proof cable without meal sheath |
| JP4358353B2 (en) * | 1999-05-13 | 2009-11-04 | 日本圧着端子製造株式会社 | Balanced transmission shield cable |
| CN2638206Y (en) * | 2003-08-19 | 2004-09-01 | 吴青芬 | Movable metal shielded soft cable for coal mine |
| CN200990255Y (en) * | 2006-10-27 | 2007-12-12 | 上海浦东电线电缆集团有限公司 | Mine power communication comprehensive cable |
| CN201032600Y (en) * | 2006-11-13 | 2008-03-05 | 扬州市红旗电缆制造有限公司 | Novel signal cable for mine engine transport monitoring system |
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2009
- 2009-09-01 CN CN200910189838A patent/CN101930809B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360607A (en) * | 2011-09-13 | 2012-02-22 | 苏州科宝光电科技有限公司 | Cable for solar power generation |
| CN102360607B (en) * | 2011-09-13 | 2012-10-10 | 苏州科宝光电科技有限公司 | Cable for solar power generation |
| CN108022687A (en) * | 2016-10-30 | 2018-05-11 | 镇江亚昆机械有限公司 | A kind of copper core cloth cable |
| CN107613187A (en) * | 2017-11-10 | 2018-01-19 | 彭从文 | Anti-interference security monitoring device |
| CN107613187B (en) * | 2017-11-10 | 2020-12-08 | 四川沃加科技有限公司 | Anti-interference security monitoring device |
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| Publication number | Publication date |
|---|---|
| CN101930809B (en) | 2012-09-05 |
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Effective date of registration: 20210924 Address after: 241000 Fanchang County Economic Development Zone, Wuhu City, Anhui Province Patentee after: ANHUI LIANJIAXIANG SPECIAL CABLE Co.,Ltd. Address before: 518000, 2 floor, 113 Industrial Zone, Sha Tsui, Shenzhen, Guangdong, Futian District Patentee before: SHENZHEN LIANJIAXIANG SCIENCE & TECHNOLOGY Co.,Ltd. |
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