CN207354282U - A kind of rail transit field high-speed wideband wireless communication system based on laser - Google Patents
A kind of rail transit field high-speed wideband wireless communication system based on laser Download PDFInfo
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- CN207354282U CN207354282U CN201721185973.2U CN201721185973U CN207354282U CN 207354282 U CN207354282 U CN 207354282U CN 201721185973 U CN201721185973 U CN 201721185973U CN 207354282 U CN207354282 U CN 207354282U
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- wireless communication
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- laser
- communication terminal
- optical
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Abstract
The utility model discloses a kind of rail transit field high-speed wideband wireless communication system based on laser, including in-vehicle wireless communication terminal and multiple terrestrial wireless communication terminals；In-vehicle wireless communication terminal is installed on rail vehicle；Multiple terrestrial wireless communication terminal distributing installations are along rail vehicle running track on ground；In-vehicle wireless communication terminal is identical with the structure of terrestrial wireless communication terminal, is formed by optical transmitter and receiver and optical antenna, and optical transmitter and receiver is connected with optical antenna.The utility model uses laser as information carrier, it is not easily susceptible to external interference, capacity is big, it is enough the broadband connections with the large capacity such as high-speed local area network interconnection outside car in carrying vehicle, and expensive pipeline engineering laying need not be carried out and safeguarded, networking speed is fast, equipment installation need only be carried out in communication point, engineering construction is using hour or day as measurement unit, the Emergency seismograph network establishment in suitable rapid deployment and complicated landform, also easily easy for replacing deployment again.
Description
Technical field
It the utility model is related to field of communication technology, and in particular to a kind of rail transit field high-speed wideband based on laser
Wireless communication system.
Background technology
At present, it is being widely used as train-ground communication system in China's track transportation industry, traditional radio communication technology
System, GSM-R, Wi-Fi, 3G/4G/5G, Tetra of such as mainstream.But face modern railway transportation (subway, high ferro) broadband car
The wireless application of interior LAN, the demand trend of the network data, delivery of video and the voice communication that such as largely increase, original biography
Wireless narrow band communication technology of uniting all shows its limitation, modern railway transportation (subway, high ferro) car can not be adapted to broadband without
The demand of line Development of Communication.
Utility model content
It is to be solved in the utility model be existing track traffic arrowband vehicle-ground wireless communication technology be easily disturbed, handling capacity
A kind of the problem of low and communication band width, there is provided rail transit field high-speed wideband wireless communication system based on laser.
To solve the above problems, the utility model is achieved through the following technical solutions：
A kind of rail transit field high-speed wideband wireless communication system based on laser, including in-vehicle wireless communication terminal and
Multiple terrestrial wireless communication terminals；In-vehicle wireless communication terminal is installed on rail vehicle；Multiple terrestrial wireless communication terminals
Distributing installation is along rail vehicle running track on ground；The knot of in-vehicle wireless communication terminal and terrestrial wireless communication terminal
Structure is identical, is formed by optical transmitter and receiver and optical antenna；Optical transmitter and receiver includes coding module, optical wavelength division multiplexing module, Laser Driven mould
Block, laser, optical detector, signal processing module, light wave decomposition multiplex module, decoder module and business interface module；Coding
The input terminal connection business interface module of module, the output terminal of coding module connect Laser Driven mould via optical wavelength division multiplexing module
The input terminal of block, the input terminal of the output terminal connecting laser of laser driven module；The output terminal of optical detector via signal at
Manage the input terminal of module connection light wave decomposition multiplex module, the input of the output terminal connection decoder module of light wave decomposition multiplex module
End, the output terminal connection business interface module of decoder module；The business interface of in-vehicle wireless communication terminal and On-board LAN are mutual
Connection；The business interface of terrestrial wireless communication terminal is interconnected with wide area network；Optical antenna includes receiving lens and diversing lens；Transmitting
Lens are connected by the output terminal of optical fiber and laser；Receiving lens are connected by the input terminal of optical fiber and optical detector.
In such scheme, the spacing distance between adjacent 2 terrestrial wireless communication terminals is 20m~1Km.
In such scheme, optical antenna still further comprises pitch regulation knob, pitch regulation circuit, pitch regulation electricity
Machine, orientation adjusting knob, orientation adjust circuit, orientation regulation motor and universal adjustment base；Receiving lens and diversing lens peace
On universal adjustment base；Pitch regulation knob is connected with the input terminal of pitch regulation circuit, the output of pitch regulation circuit
End is connected via pitch regulation motor with universal adjustment base；The input terminal that orientation adjusting knob adjusts circuit with orientation is connected,
The output terminal that orientation adjusts circuit is connected via orientation regulation motor with universal adjustment base.
Compared with prior art, the utility model has following features：
1st, using laser as information carrier, be not easily susceptible to external interference, capacity is big, it is sufficient in carrying vehicle with outside car at a high speed
The broadband connections of the large capacities such as LAN Monitoring System；
2nd, wireless laser communication working frequency range is disturbed in 365~326THz, equipment room without radiofrequency signal, so without application
Frequency usage licensing；
3rd, the linear directional circulation way of laser makes its transmitting light beam controllable, good directionality, therefore has data transfer
Confidentiality, data are not easy to leak；
4th, wireless laser communication need not carry out expensive pipeline engineering and be laid with and safeguard that networking speed is fast, need only communicate
Equipment installation is carried out on point, engineering construction is adapted to emergent in rapid deployment and complicated landform using hour or day as measurement unit
Networking is also easily easy for replacing deployment again.
Brief description of the drawings
Fig. 1 is a kind of principle schematic of the rail transit field high-speed wideband wireless communication system based on laser.
Fig. 2 is that a kind of principle of optical transmitter and receiver of the rail transit field high-speed wideband wireless communication system based on laser is illustrated
Figure.
Fig. 3 shows for a kind of principle of the optical antenna of the rail transit field high-speed wideband wireless communication system based on laser
It is intended to；
Figure label：1st, in-vehicle wireless communication terminal；2nd, terrestrial wireless communication terminal.
Embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with instantiation, and join
According to attached drawing, the utility model is further described.
A kind of rail transit field high-speed wideband wireless communication system based on laser, as shown in Figure 1, including onboard wireless
Communication terminal 1 and multiple terrestrial wireless communication terminals 2.In-vehicle wireless communication terminal 1 is installed on rail vehicle.Multiple ground
2 distributing installation of wireless communication terminal is along rail vehicle running track on ground.According to rail vehicle running track
Bending radius, a terrestrial wireless communication terminal 2 is set every a distance, it can carry out equidistant or non-equidistant row
Cloth.To ensure communication reliability, in the utility model, the spacing distance between adjacent 2 terrestrial wireless communication terminals 2 is
20m~1Km.
Wireless communication, onboard wireless are carried out by laser between in-vehicle wireless communication terminal 1 and terrestrial wireless communication terminal 2
Communication terminal 1 and terrestrial wireless communication terminal 2 are respectively provided with laser transmitting-receiving function.In the utility model, in-vehicle wireless communication
Terminal 1 is identical with the structure of terrestrial wireless communication terminal 2, is formed by optical transmitter and receiver and optical antenna.
Optical transmitter and receiver including coding module, optical wavelength division multiplexing module, laser driven module, laser, light as shown in Fig. 2, visit
Survey device, signal processing module, light wave decomposition multiplex module, decoder module and business interface module.The input terminal of coding module connects
Business interface module is connect, the output terminal of coding module swashs via the input terminal of optical wavelength division multiplexing module connection laser driven module
The input terminal of the output terminal connecting laser of optical drive module.The output terminal of optical detector connects light wave via signal processing module
The input terminal of decomposition multiplex module, the input terminal of the output terminal connection decoder module of light wave decomposition multiplex module, decoder module
Output terminal connects business interface module.The business interface of in-vehicle wireless communication terminal 1 is interconnected with On-board LAN.Terrestrial wireless leads to
The business interface and wide area network for believing terminal 2 interconnect.Business interface high speed Ethernet, video, audio and data output interface, it can
To include optical interface or electrical interface.
Optical antenna is as shown in figure 3, including receiving lens, diversing lens, pitch regulation knob, pitch regulation circuit, bow
Face upward regulation motor, orientation adjusting knob, orientation and adjust circuit, orientation regulation motor and universal adjustment base.Receiving lens and hair
Lens are penetrated on universal adjustment base.Pitch regulation knob is connected with the input terminal of pitch regulation circuit, pitch regulation electricity
The output terminal on road is connected via pitch regulation motor with universal adjustment base.Orientation adjusting knob adjusts the input of circuit with orientation
End is connected, and the output terminal that orientation adjusts circuit is connected via orientation regulation motor with universal adjustment base.Diversing lens pass through light
Fibre is connected with the output terminal of laser.Receiving lens are connected by the input terminal of optical fiber and optical detector.By adjusting vehicle-mounted nothing
The pitch angle and orientation angles of the universal adjustment base of line communication terminal 1 so that the optical antenna of in-vehicle wireless communication terminal 1
It is outwardly directed to direction residing for the terrestrial wireless communication terminal 2 outside car；By the universal adjustment bottom for adjusting ground wireless communication terminal 2
The pitch angle and orientation angles of seat so that the optical antenna of terrestrial wireless communication terminal 2 inwardly in-car onboard wireless
Direction residing for communication terminal 1；So that laser signal and the diversing lens transmitting that the receiving lens of communicating pair receive
Laser signal is optimal value.
The utility model realizes rail transit field wireless information transfer and the mesh of data transmission using wireless laser communication
, can effectively it solve in wireless communication system, traditional radio communication is easily disturbed and the defects of narrow bandwidth.
It should be noted that although embodiment described in the utility model is illustrative above, but this is not to this
The limitation of utility model, therefore the utility model is not limited in above-mentioned embodiment.The utility model is not being departed from
In the case of principle, other embodiment that every those skilled in the art obtain under the enlightenment of the utility model is accordingly to be regarded as
Within the protection of the utility model.
Claims (3)
1. a kind of rail transit field high-speed wideband wireless communication system based on laser, it is characterized in that, including onboard wireless leads to
Believe terminal (1) and multiple terrestrial wireless communication terminals (2)；In-vehicle wireless communication terminal (1) is installed on rail vehicle；It is multiple
Terrestrial wireless communication terminal (2) distributing installation is along rail vehicle running track on ground；
In-vehicle wireless communication terminal (1) is identical with the structure of terrestrial wireless communication terminal (2), by optical transmitter and receiver and optical antenna group
Into；
Optical transmitter and receiver includes coding module, optical wavelength division multiplexing module, laser driven module, laser, optical detector, signal processing mould
Block, light wave decomposition multiplex module, decoder module and business interface module；The input terminal connection business interface module of coding module,
The output terminal of coding module is via the input terminal of optical wavelength division multiplexing module connection laser driven module, the output of laser driven module
Hold the input terminal of connecting laser；The output terminal of optical detector is defeated via signal processing module connection light wave decomposition multiplex module
Enter end, the input terminal of the output terminal connection decoder module of light wave decomposition multiplex module, the output terminal connection business of decoder module connects
Mouth mold block；The business interface of in-vehicle wireless communication terminal (1) is interconnected with On-board LAN；The industry of terrestrial wireless communication terminal (2)
Business interface is interconnected with wide area network；
Optical antenna includes receiving lens and diversing lens；Diversing lens are connected by the output terminal of optical fiber and laser；Receive
Lens are connected by the input terminal of optical fiber and optical detector.
2. a kind of rail transit field high-speed wideband wireless communication system based on laser according to claim 1, it is special
Sign is that the spacing distance between adjacent 2 terrestrial wireless communication terminals (2) is 20m~1Km.
3. a kind of rail transit field high-speed wideband wireless communication system based on laser according to claim 1, it is special
Sign is, optical antenna still further comprise pitch regulation knob, pitch regulation circuit, pitch regulation motor, orientation adjusting knob,
Orientation adjusts circuit, orientation regulation motor and universal adjustment base；
Receiving lens and diversing lens are installed on universal adjustment base；
Pitch regulation knob is connected with the input terminal of pitch regulation circuit, and the output terminal of pitch regulation circuit is via pitch regulation electricity
Machine is connected with universal adjustment base；
The input terminal that orientation adjusting knob adjusts circuit with orientation is connected, and the output terminal that orientation adjusts circuit adjusts electricity via orientation
Machine is connected with universal adjustment base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721185973.2U CN207354282U (en) | 2017-09-15 | 2017-09-15 | A kind of rail transit field high-speed wideband wireless communication system based on laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721185973.2U CN207354282U (en) | 2017-09-15 | 2017-09-15 | A kind of rail transit field high-speed wideband wireless communication system based on laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207354282U true CN207354282U (en) | 2018-05-11 |
Family
ID=62409986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721185973.2U Withdrawn - After Issue CN207354282U (en) | 2017-09-15 | 2017-09-15 | A kind of rail transit field high-speed wideband wireless communication system based on laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207354282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107483117A (en) * | 2017-09-15 | 2017-12-15 | 桂林航天光比特科技股份公司 | A kind of rail transit field high-speed wideband wireless communication system based on laser |
-
2017
- 2017-09-15 CN CN201721185973.2U patent/CN207354282U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107483117A (en) * | 2017-09-15 | 2017-12-15 | 桂林航天光比特科技股份公司 | A kind of rail transit field high-speed wideband wireless communication system based on laser |
| CN107483117B (en) * | 2017-09-15 | 2023-06-09 | 桂林航天光比特科技股份公司 | High-speed broadband wireless communication system for track traffic vehicle and ground based on laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20230609 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20230609 |