CN108777180A - A kind of earth coil and preparation method thereof based on the monitoring of dynamic traffic flow - Google Patents
A kind of earth coil and preparation method thereof based on the monitoring of dynamic traffic flow Download PDFInfo
- Publication number
- CN108777180A CN108777180A CN201810440505.8A CN201810440505A CN108777180A CN 108777180 A CN108777180 A CN 108777180A CN 201810440505 A CN201810440505 A CN 201810440505A CN 108777180 A CN108777180 A CN 108777180A
- Authority
- CN
- China
- Prior art keywords
- traffic flow
- monitoring
- dynamic traffic
- copper
- earth
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
- H01B13/002—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment for heat extraction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
Abstract
The invention discloses a kind of earth coils and preparation method thereof based on the monitoring of dynamic traffic flow, the earth coil is made of the conductor material of the present invention and sheath material, and conducting wire is processed into according to a certain percentage by copper, silver, tin, cobalt, antimony and manganese, earth coil prepared by the present invention has the characteristics that service life is long, is unlikely to deform aging, excellent electric properties, high sensitivity and strong antijamming capability, it is applied to road dynamic traffic flow monitoring system, monitoring data are accurate and effective.
Description
Technical field
The present invention relates to a kind of electric wire technical fields.Specifically a kind of ground based on the monitoring of dynamic traffic flow
Line of magnetic induction loop material, the invention further relates to the preparation methods of the earth coil.
Background technology
The detection of the dynamic road magnitude of traffic flow is to car lane, non-motor vehicle and in stop line, crossing circuit surface
On vehicle, pedestrian moving state be detected.Dynamic road traffic throughput monitor system is in corresponding track and needs
Several coil combination units with different detection read functions are buried in the soil of the target road position of detection, pass through the line
Induction is identified in the faint variation that coil unit moves motor vehicle, non-motor vehicle, pedestrian in road surface position, is fixed using the earth
N/S polar characters, with above the coil by vehicle electrical induced signal generation variation, and by mating being set with its
Standby to be picked up, final output to intellectual traffic control unit, the system is that intelligent road field of traffic control is the most frequently used, economical
One of detection mode, the data that simultaneity factor is monitored are also to detect the primary information resource of road traffic flow.Due to this
Coil unit must be embedded in the road surface of certain depth hereinafter, underground road bed and soil texture environment are complicated and severe simultaneously, because
The quality of this coil unit material directly decides the accuracy of detection and detection success rate of road traffic flow amount detection systems.
The earth coil that tradition is applied to the monitoring of dynamic traffic flow is the copper conductor material by general commercial
Manufacture, the composition of copper core are mainly to use two kinds of technique productions using cathode copper as raw material：When using by tandem rolling, continuous casting,
Wire drawing process produces low-resistance value hypoxemia copper wire, and the conductor material internal differences are larger, and electromagnetic inductance is unstable, utilizes this
Coil is detected the magnitude of traffic flow, and data reliability is poor, accuracy rate is low；Second is that using oxygen-free copper-wire technique productions, the conducting wire
The copper content of bill of materials one is excessively high, without other function property metallic element, causes the stretcher strain strength reduction of entire wire rod, is embedded in
The coil of underground cannot bear the sedimentation of the normal vibration and soil on road surface and the coil stretcher strain that occurs, coil method also pole
Oxidative phenomena easily occurs, while there is also poor anti jamming capabilities for this kind of coil, are not suitable with the change for reading faint electromagnetic signal
Change, be easy to cause the offset of detected signal, information is lost and show the problems such as wrong, directly affect intelligent transportation flow information
Accurate acquisition.
Invention content
The purpose of the present invention is to provide a kind of magnetic induction coils based on the monitoring of dynamic traffic flow.
It is a further object of the present invention to provide the preparation method of the earth coil and by the earth coil application
Monitoring system is exchanged in dynamic traffic.
It is a kind of based on dynamic traffic flow monitoring earth coil include conducting wire and sheath material, the conducting wire includes
The raw material of following components by weight percent：Copper 55%-58%, silver 35%-37%, tin 6%-7%, cobalt 0.50%-0.55%, antimony 0.36%-0.39%, manganese
0.26%-0.29%。
Wherein preferred copper 56.21%, silver 36%, tin 6.6%, cobalt 0.52%, antimony 0.39%, manganese 0.28%.
The sheath material is ethylene-polyvinyl chloride copolymer resins, wherein it is preferred that polyvinyl chloride 68%, haloflex
6.3%%, acrylonitrile 2.6%, trimellitate 1.36%, EPDM 0.7%, phenyl alkylsulf 0.16%, calcium carbonate 0.10%.
Earth coil based on the monitoring of dynamic traffic flow includes the following steps preparation：
（1）It weighs, the raw metal of said components is prepared under the conditions of dustless by blending machine, be uniformly mixed；
（2）Pretreatment, the raw material mixed is put into heat pre-treatment in smelting furnace, smelting furnace furnace temperature at 650 DEG C -710 DEG C,
50 min of soaking time.
（3）Melting puts into pretreated raw material in vacuum melting furnace, opens vacuum source, the relative degree of vacuum in stove
For -3KPa~-3.5KPa, in-furnace temperature heats 180min under the conditions of being 980 DEG C~1050 DEG C, is keeping in stove relative temperature not
Under conditions of change, the smelting technology that nitrogen is passed through using reversed airing form continues to keep under 980 DEG C~1050 DEG C temperature conditions
90min, furnace temperature is then cooled to 860 DEG C~920 DEG C, and keep the temperature 60min under this condition, during which keeps nitrogen with 3MPa
Steady pressure, after soaking time, carry out cooling processing under conditions of nitrogen normal pressure is protected, wait for that temperature is down to 560 DEG C
The material transport is discharged after~620 DEG C;
（4）A diameter of 60mm is made by hot extrusion technique by the material transport to extruder system after melting in extrusion forming
Club-shaped material, diameter distortion amount control within 1.2%~1.8%；
（5）Heat preservation, which is operated into holding furnace, is cooled to 210 DEG C~230 DEG C, condition of normal pressure keeps the temperature 120min；
（6）The material is carried out natural air cooled cooling, is cooled to 18 DEG C~25 DEG C by wind cooling temperature lowering；
（7）Wire drawing processing, the material after cooling is transported in thin drawing machine, diameter is manufactured as by gradual change diameter cold-drawing technology
The roll naked copper conducting wire of 1.8mm；
（8）Electric wire is prepared, hot candied molding naked copper conducting wire and the sheath material are prepared into the cylindrical cross-section that outer diameter is 3.2mm
Coil.
Earth coil prepared by the present invention is applied to dynamic traffic flow and monitors system, and the experimental data of monitoring is accurate
It is standby, effective, stable.
Following table one is to be obtained according to statistical data in the real road application test case of same a road section actual measurement present invention
Know, detects efficient and accuracy rate 93.6% or more using each road-section average of magnetic induction coil produced by the present invention, survey
Data are higher than the earth coil product manufactured using traditional material.
Table one：
Compared with prior art, advantageous effects of the invention：
Earth coil prepared by the present invention has higher electromagnetic susceptibility and splendid electric property, enhances coil list
The anti-interference of member and anti-aging, corrosive effect, while there is extensive Local Adaptation, it is applied to dynamic traffic flow
Monitoring system greatly improves the precision of traffic data detection, also has to weak electromagnetic induction and magnetic field variation signal very strong
Pick-up capability.
Specific implementation mode
Embodiment 1
Based on the earth coil of dynamic traffic flow monitoring, preferably raw material is weighed by following proportionings：
Copper 56.21%, silver 36%, tin 6.6%, cobalt 0.52%, antimony 0.39%, manganese 0.28%.Preparation method is as follows：
（1）It weighs, the raw material of said components is prepared under the conditions of dustless, be uniformly mixed；
（2）Pretreatment, the raw material mixed is put into heat pre-treatment in smelting furnace, smelting furnace furnace temperature at 650 DEG C -710 DEG C,
50 min of soaking time.
（3）Melting puts into pretreated raw material in vacuum melting furnace, in stove relative degree of vacuum be -3KPa~-
3.5KPa and in-furnace temperature keep the temperature 180min under the conditions of being 980 DEG C~1050 DEG C, after heat preservation, are keeping relative temperature in stove
Under conditions of constant, nitrogen is passed through using reversed airing form, 60min is kept the temperature under the conditions of being then cooled to 860 DEG C~920 DEG C,
After heat preservation, cooling processing is carried out under conditions of nitrogen normal pressure is protected, by the material after temperature is down to 560 DEG C~620 DEG C
Material transhipment discharging;
（4）A diameter of 60mm is made by hot extrusion technique by the material transport to extruder system after melting in extrusion forming
Club-shaped material, diameter distortion amount control within 1.2%~1.8%；
（5）Heat preservation, which is operated into holding furnace, is cooled to 210 DEG C~230 DEG C, condition of normal pressure keeps the temperature 120min；
（6）The material is carried out natural air cooled cooling, is cooled to 18 DEG C~25 DEG C by wind cooling temperature lowering；
（7）Wire drawing processing, the material after cooling is transported in thin drawing machine, diameter is manufactured as by gradual change diameter cold-drawing technology
The roll naked copper conducting wire of 1.8mm；
（8）Electric wire is prepared, hot candied molding conducting wire is prepared into the line for the cylindrical cross-section that outer diameter is 3.2mm with the sheath material
Circle.
The concrete application of the present invention：
The movement of ground automotive is detected using the depth earth coil for being embedded in road ground or less 160mm to 220mm
It in the same place magnetic field intensity of the earth is basicly stable principle that situation, which is according to earth magnetic field, when vehicle etc. contains ferromagnetic
The object of matter can have an impact the Geomagnetic signal in existing region itself, and the earth magnetic field within vehicle domain of the existence is made to send out
Changing is detected according to cutting magnetic line at magnetic induction coil end when the vehicle of certain build is by above magnetic induction coil
The varying strength that arrives, different movement speeds induced electricity dynamic formula variation, through external computer network analysis can be obtained by by
The relevant informations such as shape geometric dimension, the Vehicle Speed of target vehicle are detected, so as to the vehicle and row to the vehicle
Management is determined further into information state.Table two is that the earth coil of the present invention is applied to road traffic flow
Actually detected data result.
Table two：
Embodiment 2-5
According to the preparation method of embodiment 1, it is applied to monitoring system, adjustment by the coil that the proportioning of following feed change is prepared
Sorting matches：Copper 55.17%, silver 31.25%, tin 10.2%, cobalt 1.96%, antimony 0.62%, manganese 0.8%.
It is applied to traffic throughput monitor system, real road test by the coil unit that the proportioning of feed change is prepared
Data result is shown in Table three：
Table three：
Embodiment described above is only that the preferred embodiment of the present invention is described, and is not limited the scope of the present invention
Fixed, under the basis for not departing from spirit of that invention, those of ordinary skill in the art can make technical scheme of the present invention
Various modifications and improvements, should all fall into claims of the present invention determination protection domain in.
Claims (6)
1. a kind of earth coil based on the monitoring of dynamic traffic flow, including conducting wire and sheath material, it is characterised in that institute
State the raw material that conducting wire includes following components by weight percent：Copper Cu（Copper content >=99.75%）56.21 parts, silver Ag（Silver content >=99.80%）
36 parts, tin Sn（Theil indices >=99.92%）6.6 parts, cobalt Co（Cobalt content >=99.81%）0.52 part, antimony Sb（Antimony content >=
99.81%）0.39 part, manganese Mn（Manganese content >=99.70%）0.28 part.
2. the earth coil according to claim 1 based on the monitoring of dynamic traffic flow, it is characterised in that described to lead
Line includes the raw material according to following components by weight percent：Copper 55%-58%, silver 35%-37%, tin 6%-7%, cobalt 0.50%-0.55%, antimony
0.36%-0.39%, manganese 0.26%-0.29%.
3. the earth coil according to claim 1 based on the monitoring of dynamic traffic flow, it is characterised in that：It is preferred that copper
56.21%, silver 36%, tin 6.6%, cobalt 0.52%, antimony 0.39%, manganese 0.28%.
4. the earth coil according to claim 1 based on the monitoring of dynamic traffic flow, it is characterised in that the shield
Cover material is ethylene-polyvinyl chloride copolymer resins.
5. prepared by a kind of earth coil based on the monitoring of dynamic traffic flow, it is characterised in that include the following steps：
（1）It weighs, the raw material of above-mentioned each component is prepared under conditions of dustless, while being uniformly mixed by proportioning machine；
（2）Pretreatment, the raw material mixed is put into heat pre-treatment in smelting furnace, smelting furnace furnace temperature at 650 DEG C -710 DEG C,
50 min of soaking time;
（3）Melting puts into pretreated raw material in vacuum melting furnace, in stove relative degree of vacuum be -3KPa~-
3.5KPa keeps the temperature 180min under the conditions of in-furnace temperature is 980 DEG C~1050 DEG C, after heat preservation, is keeping relatively warm in stove
Spend it is constant under conditions of, nitrogen is passed through using reversed airing form, during which keep nitrogen with the steady pressure of 3MPa, then cool down
60min is kept the temperature under the conditions of to 860 DEG C~920 DEG C, after heat preservation, cooling processing is carried out under conditions of nitrogen normal pressure is protected,
The material transport is discharged after temperature is down to 560 DEG C~620 DEG C;
（4）A diameter of 60mm is made by hot extrusion technique by the material transport to extruder system after melting in extrusion forming
Club-shaped material, diameter distortion amount control within 1.2%~1.8%；
（5）Heat preservation, which is operated into holding furnace, is cooled to 210 DEG C DEG C~230 DEG C, condition of normal pressure heat preservation
120min；
（6）The material is carried out natural air cooled cooling, is cooled to 18 DEG C~25 DEG C by wind cooling temperature lowering；
（7）Wire drawing processing, the material after cooling is transported in thin drawing machine, is manufactured as by gradual change diameter cold-drawing technology a diameter of
The roll naked copper conducting wire of 1.8mm；
（8）Electric wire is prepared, hot candied molding naked copper conducting wire and the sheath material are prepared into the cylindrical cross-section that outer diameter is 3.2mm
Coil.
6. a kind of earth coil based on the monitoring of dynamic traffic flow is applied to dynamic traffic flow and monitors system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440505.8A CN108777180A (en) | 2018-05-10 | 2018-05-10 | A kind of earth coil and preparation method thereof based on the monitoring of dynamic traffic flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440505.8A CN108777180A (en) | 2018-05-10 | 2018-05-10 | A kind of earth coil and preparation method thereof based on the monitoring of dynamic traffic flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108777180A true CN108777180A (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810440505.8A Pending CN108777180A (en) | 2018-05-10 | 2018-05-10 | A kind of earth coil and preparation method thereof based on the monitoring of dynamic traffic flow |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169447A (en) * | 2012-07-02 | 2014-11-26 | 古河电气工业株式会社 | Copper-alloy wire rod and manufacturing method therefor |
| CN105047400A (en) * | 2015-09-16 | 2015-11-11 | 合肥海畅电气技术有限公司 | Relay coil material of lightning arrester detection apparatus |
| JP2017095772A (en) * | 2015-11-25 | 2017-06-01 | タツタ電線株式会社 | Copper alloy |
| CN107227420A (en) * | 2017-06-27 | 2017-10-03 | 合肥达户电线电缆科技有限公司 | A kind of alloy wiring and preparation method thereof |
-
2018
- 2018-05-10 CN CN201810440505.8A patent/CN108777180A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169447A (en) * | 2012-07-02 | 2014-11-26 | 古河电气工业株式会社 | Copper-alloy wire rod and manufacturing method therefor |
| CN105047400A (en) * | 2015-09-16 | 2015-11-11 | 合肥海畅电气技术有限公司 | Relay coil material of lightning arrester detection apparatus |
| JP2017095772A (en) * | 2015-11-25 | 2017-06-01 | タツタ電線株式会社 | Copper alloy |
| CN107227420A (en) * | 2017-06-27 | 2017-10-03 | 合肥达户电线电缆科技有限公司 | A kind of alloy wiring and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴培熙等: "《聚合物共混改性》", 30 August 2017, 中国轻工业出版社 * |
| 张士宏等: "《精密铜管铸轧加工技术》", 29 February 2016, 国防工业出版社 * |
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Application publication date: 20181109 |