CN106602235B - A kind of combined antenna for rail transit train Through Several Survey Measure - Google Patents
A kind of combined antenna for rail transit train Through Several Survey Measure Download PDFInfo
- Publication number
- CN106602235B CN106602235B CN201611171048.4A CN201611171048A CN106602235B CN 106602235 B CN106602235 B CN 106602235B CN 201611171048 A CN201611171048 A CN 201611171048A CN 106602235 B CN106602235 B CN 106602235B
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- radiator
- coil
- antenna
- lower layer
- substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of combined antennas for rail transit train Through Several Survey Measure comprising chamber shell, beacon antenna, wire loop antenna and anti-interference layer.Beacon antenna includes upper layer radiator and lower layer's radiator, and lower layer's radiator is rectangle, and area is 2-4 times of diamond shape lower layer radiation bulk area.Wire loop antenna has coil, and the center position of projection of the coil on substrate is provided with anti-interference layer, which is made of zinc oxide and aluminium oxide.Composite antenna structure of the invention is simply secured, and cost can be effectively reduced in good in anti-interference performance.
Description
Technical field
The present invention relates to a kind of antenna, in particular to a kind of combined antenna for rail transit train.
Background technique
In the communication-based train control system (CBTC) of rail traffic, there are two types of common localization methods.It is a kind of
It is the beacon localization method of current mainstream, this method is that a beacon is arranged every a distance on the ground of track, is used
Vehicle-mounted beacon antenna reads the electronic tag on ground, and train institute is determined by location information documented in electronic tag
In-position.Another kind is loop wire communicating and positioning method, and this method is to be laid with cross-inductive loop wire on the ground, uses loop wire day
Line reads train position, while mobile unit can also be communicated with trackside equipment.Cross-inductive loop wire can expire
The requirement of sufficient two-way communication is also able to satisfy the requirement of train positioning, and compensating for Digital Track Circuit for wheel rail railway cannot
The deficiency of transmission vehicle information over the ground.
Above two positioning method, has his own strong points, and the electronic tag of beacon positioning mode does not need extraneous power supply, only by vehicle-mounted
The radiation energy that beacon antenna provides just can be carried out charging and issue signal, advantage of lower cost.Loop wire communicates positioning mode can be with
With the realizing vehicle interaction of equipment, and can have a huge promotion in positioning accuracy.But both localization methods
There is respective short slab, positioned using electronic tag, there are also some defects in positioning accuracy and on trackside equipment interaction capabilities.Make
It is positioned with induction loop, needs to set up cabinet by loop wire, loop wire is powered and signal operation.
In conjunction with the advantages of the two, optimizing to vehicle control syetem is developing direction.It is fixed using loop wire nearby AT STATION
Position method is accurately positioned and is operated trackside equipment；Far from beacon positioning mode is used at station, rough column can be carried out
Vehicle positioning.Therefore, intersect the advantages of electronic tag is set, then can use both positioning methods simultaneously on loop wire in induction,
The accident that can not be positioned when can also prevent one way in which from failing simultaneously.However electronic tag is during installation, needs in label
Bottom install metal gasket, to enhance the energy that electronic tag can be received and be sent.But loop wire has metal in bottom
In the environment of, signal can be interfered.And have two antennas of installation in extreme position in the bogie of rail vehicle, then can
Reduce antenna volume, reduces sensitivity.
Summary of the invention
For above-mentioned related problem, the present invention proposes a kind of for the compound of rail transit train Through Several Survey Measure
Antenna.The combined antenna substantially reduces antenna volume, while can also be effectively reduced signal interference, improves sensitivity.
For achieving the above object, present invention employs following technical solutions: one kind is a variety of for rail transit train
The combined antenna of detection mode, the combined antenna are rectangle comprising chamber shell, beacon antenna, wire loop antenna and anti-interference layer,
Chamber shell is made of substrate and antenna house, and substrate includes bottom plate and the reflecting plate that is arranged on bottom plate, and beacon antenna is arranged in antenna
Substrate middle section on length direction, beacon antenna have the first radiating element and the second radiating element, the first radiating element and the
The top of substrate is vacantly arranged in two radiating elements, and the first radiating element includes that the first upper layer radiator and the first lower layer radiate
Body, the second radiating element include the second upper layer radiator and second lower layer's radiator, the first upper layer radiator and the second upper layer spoke
Beam is diamond shape and area equation, and first lower layer's radiator and second lower layer's radiator are rectangle and area equation, on first
The area of layer radiator and the area ratio of first lower layer's radiator are 1:2~1:4, first lower layer's radiator and the radiation of the second lower layer
Body is equipped with coaxial cable by metal band connection, in the lower part of substrate, and the shielded layer of coaxial cable one end is connected with reflecting plate, together
The inner core of shaft cable is connected on second lower layer's radiator of the second radiating element after passing through substrate, in the first upper layer radiator and
The center position screw of first lower layer's radiator connect the first upper layer radiator and first lower layer's radiator with reflecting plate,
Make the second upper layer radiator and the second lower layer in the center position screw of the second upper layer radiator and second lower layer's radiator
Radiator is connect with reflecting plate, and wire loop antenna includes first coil and the second coil, and first coil and the second coil difference are hanging
The both ends of substrate on antenna length direction are set, and first coil and the second coil are opposite with ground loop wire to receive induction letter
Number, in the position at the center that substrate projects, anti-interference layer is set for first coil that anti-interference layer is disposed on the substrate and the second coil
It sets on reflecting plate and is made of zinc oxide and aluminium oxide, the weight ratio of zinc oxide and aluminium oxide is 1:1~1:2.
Researcher of the invention has found that beacon antenna includes two radiating elements, each radiating element under study for action
With two layers of radiator being parallel to each other, radiator is all diamond shape at the middle and upper levels, and lower layer's radiator is all rectangle, upper layer radiation
The area of body and the area ratio of lower layer's radiator are 1:2~1:4, then can effectively reduce track ground upper metallic gasket to ring
The interference of line signal.Researcher has found in an experiment, if upper layer radiator and lower layer's radiator are both configured to rectangle
Remaining condition is constant, or by the area of upper layer radiator and lower layer's radiator to set remaining equal condition constant, then metal
Gasket is still bigger to the interference of loop wire signal.This may be the radiator of different shapes in parallel different level,
" interfering with each other " effect is produced to metal gasket under different area, so that metal gasket weakens the interference of loop wire signal.
Researcher of the invention also found under study for action, the coil of wire loop antenna central location setting zinc oxide and
The coating of aluminium oxide, can effectively reduce interference of the metal gasket to loop wire signal, and zinc oxide and the aluminium oxide
Weight ratio can make interference reduction many between 1:1~1:2.Researcher has found in an experiment, and oxidation is used alone
Zinc or aluminium oxide can not play the role of reducing interference, this may be to produce synergistic effect because of zinc oxide and aluminium oxide,
The interference that metal gasket generates is absorbed.
Preferably, the outer layer of screw is cased with isolation and leans on, and insulated column vacantly sets the first radiating element and the second radiating element
It sets in the top of substrate.
Preferably, the magnetic field of first coil and the second coil-induced corresponding ground induction loop and pass through coil cable point
It Shu Chu not control unit on induced voltage to train.
Preferably, first coil is identical with the second coil-induced size.
Preferably, antenna house uses glass steel material.
The invention has the following advantages that
1, combined antenna of the invention is Multi-Function Antenna, replaceable original beacon antenna and wire loop antenna, and is reduced
Antenna volume.
2, combined antenna of the invention can receive more accurate signal, good in anti-interference performance.
3, composite antenna structure of the invention is simply secured, can effectively reduce cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the combined antenna of a specific embodiment of the invention.
Fig. 2 is that the combined antenna of Fig. 1 removes the top view of antenna house.
Specific embodiment
With reference to the accompanying drawings to invention is more fully described, wherein illustrating exemplary embodiment of the present invention.
As shown in Figure 1, combined antenna of the invention is rectangle comprising chamber shell, beacon antenna 4, wire loop antenna and anti-
Interfere layer 18.Chamber shell is made of substrate and antenna house 3.Substrate includes the reflection of bottom plate 1 and the metal material being arranged on bottom plate
Plate 2.Antenna house 3 can be made with glass steel material, can be implemented excellent sealing to entire antenna and be prevented moisture from entering, to adapt to arrange
Vehicle is run in atrocious weather, improves the stability of antenna, extends its working life.
The substrate middle section on antenna length direction is arranged in beacon antenna 4, and supports hanging setting to exist by insulated column 14
The top of reflecting plate 2.Beacon antenna 4 has the first radiating element and the second radiating element, the first radiating element and the second radiation
The top of the reflecting plate 2 of substrate is vacantly arranged in unit.First radiating element includes the first upper layer radiator 5 and first lower layer's spoke
Beam 6, the top of first lower layer's radiator 6 is arranged in the first upper layer radiator 5 and the two is parallel to each other.Second radiating element packet
The second upper layer radiator 7 and second lower layer's radiator 8 are included, the top of second lower layer's radiator 8 is arranged in the second upper layer radiator 7
And the two is parallel to each other.First upper layer radiator 5 and the second upper layer radiator 7 are diamond shape and area equation, the radiation of the first lower layer
Body 6 and second lower layer's radiator 8 are rectangle and area equation.The area of first upper layer radiator 5 and first lower layer's radiator 6
Area ratio be 1:2~1:4.First lower layer's radiator 6 and second lower layer's radiator 8 are connected by metal tape 9, to guarantee first
8 equal amplitude feed of lower layer's radiator 6 and second lower layer's radiator.Coaxial cable 10 is equipped in the lower part of substrate.Coaxial cable
The shielded layer 11 and reflecting plate 2 of 10 one end connect, after the inner core 12 of coaxial cable 10 non-contactly passes through bottom plate 1 and reflecting plate 2
It is connected on second lower layer's radiator 8 of the second radiating element.In the first upper layer radiator 5 and first lower layer's radiator 6
The first upper layer radiator 5 and first lower layer's radiator 6 are electrically connected with reflecting plate 2 with screw 13 at heart position, play direct current
The effect of ground connection meets at outdoor lightning stroke to avoid train and is destroyed.Similarly, in the second upper layer radiator 7 and second
The center position screw 13 of lower layer's radiator 8 connects the second upper layer radiator 7 and second lower layer's radiator 8 with reflecting plate 2
It connects.Low-loss insulated column is set in the outside of screw, is relatively large in diameter, and plays the structural stability for stablizing two radiating elements
Effect.Radiator of the invention uses metal material.
Wire loop antenna includes first coil 15 and the second coil 16, and first coil 15 and the second coil 16 are vacantly arranged respectively
The both ends of substrate on antenna length direction, first coil 15 and the second coil 16 are opposite with ground loop wire to receive induction letter
Number, first coil 15 that anti-interference layer 18 is disposed on the substrate and the second coil 16 resist dry in the position at the center that substrate projects
It disturbs layer 18 to be arranged on reflecting plate 2 and be made of zinc oxide and aluminium oxide, the weight ratio of zinc oxide and aluminium oxide is 1:1~1:2.
In addition, screw 13 outer layer be cased with it is low-loss isolation lean on 14.First coil 15 and the second coil 16 are respectively by dielectric support
Column 17 supports, and is vacantly set to the top of the reflecting plate 2 of substrate.First coil 15 and the second coil 16 incude corresponding ground sense
It answers the magnetic field of loop wire (not shown) and induced voltage is exported to control unit (not shown) by coil cable (not shown) respectively.
It is additionally provided with signal processing circuit on train, ratio is carried out to the induced voltage of first coil and the second coil and is put
Greatly, it exports after bandpass filtering and detection to control unit.Control unit is according to the induced voltage of first coil and the second coil
The position signal of ratio output train between induced voltage.
As can be seen from Figure 2, the middle part of substrate, the first coil 15 of wire loop antenna and the second coil 16 is arranged in beacon antenna 4
It is separately positioned on the both ends of substrate.The insulated column 14 being relatively large in diameter is by the upper layer radiator 5,7 and lower layer's radiator of beacon antenna
6, it 8 fixes, and is allowed to that the top of substrate is vacantly arranged in.Upper layer radiator 5,6 is diamond shape.Lower layer's radiator is 6,8 rectangular
Shape, area are 2 times of upper layer radiator 5,6.It finds under study for action, difference is respectively adopted in upper layer radiator and lower layer's radiator
Shape, and the area of lower layer's radiator is 2 ~ 4 times of the area of upper layer radiator, then can effectively reduce induction loop due to
Metal gasket under electronic tag and the interference generated.It is attached between lower layer's radiator 6,8 by metal tape 9.Practical manufacture
In the process, metal tape 9 can be generated with lower layer radiator 6,8 disposable cutting processings, one.Anti-interference layer 18 is separately positioned on
One coil 15 and the second coil 16 are made of, wherein aoxidizing in the center of the projection of reflecting plate 2 zinc oxide and aluminium oxide
The weight ratio of zinc and aluminium oxide is 1:1~1:2.Anti-interference layer can be previously prepared, is bonded on reflecting plate 2 by patch,
It can be arranged on reflecting plate 2 by techniques such as vapor deposition, vapor deposition, coatings.It finds under study for action, the reflection below coil
The coating being made of zinc oxide and aluminium oxide is set on plate, metal gasket of the induction loop because of electronic tag can be effectively reduced
Piece and the interference generated.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (5)
1. a kind of combined antenna for rail transit train Through Several Survey Measure, which is characterized in that the combined antenna is rectangular
Shape comprising chamber shell, beacon antenna, wire loop antenna and anti-interference layer, the chamber shell are made of substrate and antenna house, the substrate
Including bottom plate and the reflecting plate being arranged on bottom plate, the substrate middle section on antenna length direction, institute is arranged in the beacon antenna
Beacon antenna is stated with the first radiating element and the second radiating element, first radiating element and the second radiating element are vacantly set
It sets in the top of the substrate, first radiating element includes the first upper layer radiator and first lower layer's radiator, and described the
Two radiating elements include the second upper layer radiator and second lower layer's radiator, first upper layer radiator and second upper layer
Radiator is diamond shape and the two area equation, and first lower layer radiator and second lower layer radiator are rectangle and two
Person's area equation, the area of first upper layer radiator and the area ratio of first lower layer radiator are 1:2~1:4, institute
First lower layer's radiator and second lower layer radiator are stated by metal band connection, is equipped with coaxial electrical in the lower part of the substrate
The shielded layer of cable, described coaxial cable one end is connected with reflecting plate, and the inner core of the coaxial cable is connected to institute after passing through substrate
It states on second lower layer's radiator of the second radiating element, in first upper layer radiator and first lower layer radiator
It connect first upper layer radiator and first lower layer radiator with the reflecting plate with screw at heart position, described
The center position screw of second upper layer radiator and second lower layer radiator makes second upper layer radiator and institute
Second lower layer's radiator to be stated to connect with the reflecting plate, the wire loop antenna includes first coil and the second coil, and described first
The both ends of the substrate on antenna length direction, the first coil and the second coil is vacantly arranged in coil and the second coil respectively
It is opposite with ground loop wire to receive inductive signal, the centre bit of the projection of the first coil and second coil on substrate
It sets and the anti-interference layer is respectively set, the anti-interference layer is arranged on reflecting plate and by zinc oxide and aluminium oxide group
At the weight ratio of the zinc oxide and the aluminium oxide is 1:1~1:2.
2. combined antenna according to claim 1, wherein the outer layer of the screw is cased with isolation and leans on, and the insulated column will
The top of the substrate is vacantly arranged in first radiating element and second radiating element.
3. combined antenna according to claim 1 or 2, wherein the first coil and the second coil-induced correspondence
Ground induction loop magnetic field and the control unit on induced voltage to train is exported by coil cable respectively.
4. the combined antenna according to any one of claim 3, wherein the first coil and described second coil-induced
Size is identical.
5. the combined antenna according to any one of claim 3, wherein the antenna house uses glass steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611171048.4A CN106602235B (en) | 2016-12-16 | 2016-12-16 | A kind of combined antenna for rail transit train Through Several Survey Measure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611171048.4A CN106602235B (en) | 2016-12-16 | 2016-12-16 | A kind of combined antenna for rail transit train Through Several Survey Measure |
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| Publication Number | Publication Date |
|---|---|
| CN106602235A CN106602235A (en) | 2017-04-26 |
| CN106602235B true CN106602235B (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611171048.4A Active CN106602235B (en) | 2016-12-16 | 2016-12-16 | A kind of combined antenna for rail transit train Through Several Survey Measure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812944A (en) * | 2003-07-14 | 2006-08-02 | 松下电器产业株式会社 | Magnetic ferrite and magnetic device using same |
| CN201360038Y (en) * | 2009-03-03 | 2009-12-09 | 福建省泉州华鸿通讯有限公司 | Novel broadband wall-mounted antenna |
| CN101681907A (en) * | 2007-11-30 | 2010-03-24 | 松下电器产业株式会社 | Heat dissipating structure base board, module using heat dissipating structure base board, and method for manufacturing heat dissipating structure base board |
| CN201450098U (en) * | 2009-08-27 | 2010-05-05 | 西安阿特纳电子科技有限公司 | Radio-frequency identification antenna of railway vehicle |
| CN104953244A (en) * | 2015-05-19 | 2015-09-30 | 北京空间机电研究所 | Returner parachute lanyard type recovery beacon antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2988064B1 (en) * | 2012-03-15 | 2014-04-18 | Alstom Transport Sa | ONBOARD SYSTEM FOR GENERATING A LOCALIZATION SIGNAL OF A RAILWAY VEHICLE |
-
2016
- 2016-12-16 CN CN201611171048.4A patent/CN106602235B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812944A (en) * | 2003-07-14 | 2006-08-02 | 松下电器产业株式会社 | Magnetic ferrite and magnetic device using same |
| CN101681907A (en) * | 2007-11-30 | 2010-03-24 | 松下电器产业株式会社 | Heat dissipating structure base board, module using heat dissipating structure base board, and method for manufacturing heat dissipating structure base board |
| CN201360038Y (en) * | 2009-03-03 | 2009-12-09 | 福建省泉州华鸿通讯有限公司 | Novel broadband wall-mounted antenna |
| CN201450098U (en) * | 2009-08-27 | 2010-05-05 | 西安阿特纳电子科技有限公司 | Radio-frequency identification antenna of railway vehicle |
| CN104953244A (en) * | 2015-05-19 | 2015-09-30 | 北京空间机电研究所 | Returner parachute lanyard type recovery beacon antenna |
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| Publication number | Publication date |
|---|---|
| CN106602235A (en) | 2017-04-26 |
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