CN106686079A - Wireless remote file transfer system based on QAM - Google Patents
Wireless remote file transfer system based on QAM Download PDFInfo
- Publication number
- CN106686079A CN106686079A CN201611235669.4A CN201611235669A CN106686079A CN 106686079 A CN106686079 A CN 106686079A CN 201611235669 A CN201611235669 A CN 201611235669A CN 106686079 A CN106686079 A CN 106686079A
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- Prior art keywords
- transmitting station
- file
- qam
- wireless
- bag
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
- H04L67/108—Resource delivery mechanisms characterised by resources being split in blocks or fragments
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a wireless remote file transfer system based on QAM. The system comprises a monitoring center, a radio transmitter, and a remote terminal receiver. The monitoring center is used for decomposing and packaging and decrypting the remote transmitting files; the radio transmitter as a shore-based device is used for receiving the file packages from the monitoring center, and the file packages are transmitted to the launch pad through the transmitter, and then the file packages are broadcasted through the launch pad; The remote terminal receiver as a ship borne device is used for receiving the wireless packages information from the radio transmitter, and then the received wireless packages are calibrated, decrypted, packaged and combined to generate files. The monitoring center is connected to the radio transmitter through the network. The radio transmitter is connected to the remote terminal receiver through the radio wave. The wireless remote file transfer system based on QAM transmits remote files utilizing the transmitter of the radio launch pad, which is safe and reliable. And the system meets the medium-long range large files transmission requirement in navigation, aviation, mountains and polar regions in wireless condition.
Description
Technical field
The present invention relates to a kind of wireless remote document transmission system, more particularly to it is a kind of based on QAM (Quadrature
Amplitude Modulation, quadrature amplitude modulation) wireless remote document transmission system.
Background technology
NAVDAT is new-generation digital maritime safety information broadcasting system, and its message transmission rate reaches 15-25kb/s,
Coastal waters coverage reaches 350 nautical miles, can update bag etc. with high-speed transfer text, picture, chart, image and electronic chart various
Formatted file, disclosure satisfy that the ever-increasing data volume of coastal security information is required by common group of seashore transmitting station and ship-borne equipment
Into being a kind of new collection network technology, modern communications technology, computer technology, electronic information Display Technique, radio communication
Digital navaid and equipment that technology is integrated.
Maritime safety information broadcasting system will outwards be broadcasted word or file by broadcasting system, make neighbouring ship and bank
Platform can in time grasp the dynamic static information of all ships in sea nearby, be able at once that mutually call is coordinated, and take necessary avoiding row
It is dynamic, safety of ship is had very great help.
But existing radio station transmitting station is only used for transmitting simple word signaling, it is impossible in navigation, aviation, remote mountains,
In the case of polar region, there is provided remote file transferring.
The content of the invention
The technical problem to be solved is to provide a kind of wireless remote document transmission system based on QAM, can
Remote file transferring is provided using the emitter of radio station transmitting station, it is safe and reliable, meet the navigation under wireless status, aviation, depth
The transmission demand of the big file of medium-long range is applied on mountain, polar region.
The technical scheme that the present invention is adopted to solve above-mentioned technical problem is to provide a kind of wireless remote text based on QAM
Part Transmission system, including Surveillance center：The file for treating remote transmission is decomposed, packed and is encrypted；Radio station transmitting station：As
Bank base equipment, receives the file bag from Surveillance center, and by emitter transmitting station is sent to, then by transmitting station by file
Bag is broadcast away；Remote terminal reception machine：As ship-borne equipment, the packet radio letter of the transmitting station from radio station transmitting station is received
Breath, the packet radio to receiving is verified, decrypted, packaging, combine and generate file；The Surveillance center and radio station transmitting station
It is connected by network；The radio station transmitting station is connected with remote terminal reception machine by radio wave.
The above-mentioned wireless remote document transmission system based on QAM, wherein, the Surveillance center adopts fixed-size text
Part bag, insufficient section is supplied with 0, and the file is broadcast pattern and is divided into 4QAM 1/2,4QAM 3/4,16QAM1/2,16QAM 3/
4,64QAM 1/2 and 64QAM 3/4, corresponding transmission range is 350 nautical miles~90 nautical miles.
The above-mentioned wireless remote document transmission system based on QAM, wherein, it is provided with multiple transmittings in the radio station transmitting station
Machine, the radio station transmitting station is provided with the file bag for broadcasting control middleware unification reception from Surveillance center, after verification is correct,
It is combined into section to wrap and preserve；The plurality of emitter connects respective transmitting station by serial ports, and by emission control in the middle of
Part United Dispatching；The state that control middleware is broadcast according to transmitting station, calculates the transmitting station in idle condition, and will
Data are sent on the transmitting station；Simultaneously by the feedback of status of current transmitting station to emission control middleware；After end of transmission
The section bag data of control middleware is broadcast in removing, then re-emits data rewind to control middleware, wait is broadcast after error.
The above-mentioned wireless remote document transmission system based on QAM, wherein, the transmitting station sends and pass through after file WEB
Service is used for query statistic and analysis by the data back of transmitting to Surveillance center；The remote terminal reception machine is in network-in-dialing
In the case of by data back to Surveillance center.
Present invention contrast prior art has following beneficial effect：The wireless remote file based on QAM that the present invention is provided
Transmission system, using the emitter of radio station transmitting station remote file transferring is provided, safe and reliable, is met and is navigated under wireless status
Sea, aviation, remote mountains, polar region using the big file of medium-long range transmission demand.
Description of the drawings
Fig. 1 is wireless remote document transmission system configuration diagram of the present invention based on QAM；
Fig. 2 is wireless remote document transmission process schematic diagram of the present invention based on QAM.
Specific embodiment
With reference to the accompanying drawings and examples the invention will be further described.
Fig. 1 is wireless remote document transmission system configuration diagram of the present invention based on QAM；Fig. 2 is based on QAM for the present invention
Wireless remote document transmission process schematic diagram.
Refer to Fig. 1 and Fig. 2, the wireless remote document transmission system based on QAM that the present invention is provided, including in monitoring
The heart：The file for treating remote transmission is decomposed, packed and is encrypted；
Radio station transmitting station：As bank base equipment, the file bag from Surveillance center is received, transmitting is sent to by emitter
Platform, is then broadcast away file bag by transmitting station；
Remote terminal reception machine：As ship-borne equipment, the wireless package informatin from radio station transmitting station is received, to what is received
Packet radio is verified, decrypted, packaging, combine and generate file；
The Surveillance center is connected with radio station transmitting station by network；The radio station transmitting station and remote terminal reception machine are logical
Cross radio wave to be connected, use the principle i.e. electromagnetic coupling theory of radio propagation.
The wireless remote document transmission system based on QAM that the present invention is provided, by player software to wanting remote transmission
File is decomposed, is packed, is segmented, is encrypted.With computer by the bag of file by serial ports segment transmissions to emitter, then
Transmitting station is sent to by emitter, is then broadcast away file bag by transmitting station.Receive software to receive by receiver
Transmitting station emit packet radio information checking, decryption, packaging, group section, peace section combine and generate file.The work(of each main modular
Can and realize as follows.
First, file is broadcast
1st, file decomposes, packs, is segmented
By file is with certain coded format and certain broadcasts Mode Decomposition into the bag of one or more, the size of bag
Fixed (insufficient section is supplied with 0), different pattern is of different sizes, and file is broadcast pattern and is divided into 6 kinds of 4QAM1/2,4QAM 3/4,
16QAM 1/2,16QAM 1/2,64QAM 1/2,64QAM 3/4；Bag after decomposition is split as in order multiple sections, last
The bag number of individual section does not know, and other section bag numbers are fixed.
2nd, WEB control centres are broadcast away big file by section.
2nd, file broadcasts control middleware
1st, receive after the file bag, the verification correctly that transmit by section, be combined into section bag and protect by network
Deposit.
2nd, by monitoring transmitting terminal software 1 to the current state of transmitting terminal software N, the idle transmitting of current comparison is drawn
End software T, by the data transfer of section bag to transmitting terminal software T, removes the section bag data for broadcasting control middleware after end of transmission,
After error, data will be rolled back to broadcasts control middleware, and wait is re-emitted！
3rd, transmitting terminal software
1st, transmitting terminal software has multiple, and transmitting terminal software T is received and broadcast the data that the data transfer of control middleware comes
(section bag), and be transmitted to be transferred to emitter T
2nd, the feedback of status of current transmitting terminal to file is broadcast and is controlled on middleware by data transfer simultaneously to after emitter.
4th, emitter
1st, emitter Main Function is that transmitting terminal software T is received data and is transferred in emission control by certain pattern
Between on part.
5th, emission control middleware
1st, emission control middleware is received after data (section bag), according to the state of transmitting station, is calculated in idle shape
State transmitting station T, and transfer data on the transmitting station.
2nd, simultaneously by the feedback of status of current transmitting station to emission control middleware after data are sent on the transmitting station.
6th, transmitting station
1st, transmitting station can have multiple, and emitter T is transferred data to after transmitting station T, transmitting station T by radio wave with
Different patterns are broadcast away, and different patterns, transmission range is different.
7th, terminal receiver
1st, terminal receiver has multiple, and the major function of terminal receiver receives the data group bag that transmitting station is transmitted,
And transfer data to reception control middleware.
8th, control middleware is received
1st, receive control middleware to receive after the data (section bag) of terminal receiver transmission, according to the shape of receiving terminal software
State, calculates and receives software T in idle condition, and transfers data on reception software T, while the shape that will receive software
State is fed back on reception control middleware.
9th, software is received
1st, receive software receive after the data of terminal receiver, after packaging, group section finish after, according to certain
Regular combination producing file.
2nd, receive rear state to be also fed back to receive on control middleware.
3rd, after the completion of receiving data group bag, can be by the data transfer for receiving to WEB terminal control centre.
Although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, when a little modification and perfect, therefore the protection model of the present invention can be made
Enclose when by being defined that claims are defined.
Claims (4)
1. a kind of wireless remote document transmission system based on QAM, it is characterised in that include：
Surveillance center：The file for treating remote transmission is decomposed, packed and is encrypted；
Radio station transmitting station：As bank base equipment, the file bag from Surveillance center is received, transmitting station is sent to by emitter,
Then file bag is broadcast away by transmitting station；
Remote terminal reception machine：As ship-borne equipment, the wireless package informatin from radio station transmitting station is received, it is wireless to what is received
Bag is verified, decrypted, packaging, being combined and generated file；
The Surveillance center is connected with radio station transmitting station by network；The radio station transmitting station and remote terminal reception machine pass through nothing
Line electric wave is connected.
2. the wireless remote document transmission system of QAM is based on as claimed in claim 1, it is characterised in that the Surveillance center
Using fixed-size file bag, insufficient section is supplied with 0, and the file is broadcast pattern and is divided into 4QAM1/2,4QAM 3/4,
16QAM 1/2,16QAM 3/4,64QAM 1/2 and 64QAM 3/4, corresponding transmission range is 350 nautical miles~90 nautical miles.
3. the wireless remote document transmission system of QAM is based on as claimed in claim 1, it is characterised in that the radio station transmitting
Multiple emitters are provided with platform, the radio station transmitting station is provided with the text for broadcasting control middleware unification reception from Surveillance center
Part bag, verification is correctly rear, be combined into section wraps and preserves；The plurality of emitter connects respective transmitting station by serial ports,
And by emission control middleware United Dispatching；The state that control middleware is broadcast according to transmitting station, calculated in the free time
The transmitting station of state, and transfer data on the transmitting station；Simultaneously by the feedback of status of current transmitting station to emission control
Between on part；After end of transmission remove broadcast control middleware section bag data, after error then by data rewind to broadcast control in
Between part, wait re-emits.
4. the wireless remote document transmission system of QAM is based on as claimed in claim 1, it is characterised in that the transmitting station is sent out
Send and the data back launched is used for by query statistic and analysis to Surveillance center by WEB service after file；The remote terminal
Receiver is in the case of network-in-dialing by data back to Surveillance center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235669.4A CN106686079B (en) | 2016-12-28 | 2016-12-28 | Wireless remote file transmission system based on QAM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235669.4A CN106686079B (en) | 2016-12-28 | 2016-12-28 | Wireless remote file transmission system based on QAM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106686079A true CN106686079A (en) | 2017-05-17 |
| CN106686079B CN106686079B (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611235669.4A Active CN106686079B (en) | 2016-12-28 | 2016-12-28 | Wireless remote file transmission system based on QAM |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992828A (en) * | 2017-06-01 | 2017-07-28 | 上海埃威航空电子有限公司 | Marine intermediate frequency digital broadcast system |
| CN107040390A (en) * | 2017-06-01 | 2017-08-11 | 上海埃威航空电子有限公司 | The marine wireless chart update system and method for intermediate frequency |
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| CN101848188A (en) * | 2009-03-25 | 2010-09-29 | 上海聚力传媒技术有限公司 | Method and device for updating data block checking information |
| CN103220268A (en) * | 2013-03-01 | 2013-07-24 | 上海交通大学 | Airborne ultrashort wave multimedia communication system |
| CN103269486A (en) * | 2013-04-19 | 2013-08-28 | 北京航空航天大学 | Air-ground data transmission method, device and system |
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| CN106209163A (en) * | 2016-06-21 | 2016-12-07 | 中国科学院半导体研究所 | Based on microwave communication and the frequency-hopping communication system of spacing wireless optic communication dual link |
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Patent Citations (7)
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| CN101848188A (en) * | 2009-03-25 | 2010-09-29 | 上海聚力传媒技术有限公司 | Method and device for updating data block checking information |
| CN103220268A (en) * | 2013-03-01 | 2013-07-24 | 上海交通大学 | Airborne ultrashort wave multimedia communication system |
| CN103269486A (en) * | 2013-04-19 | 2013-08-28 | 北京航空航天大学 | Air-ground data transmission method, device and system |
| CN104038271A (en) * | 2014-05-16 | 2014-09-10 | 中国人民解放军空军工程大学 | OFDM technology-based airborne two-antenna simultaneous communication method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992828A (en) * | 2017-06-01 | 2017-07-28 | 上海埃威航空电子有限公司 | Marine intermediate frequency digital broadcast system |
| CN107040390A (en) * | 2017-06-01 | 2017-08-11 | 上海埃威航空电子有限公司 | The marine wireless chart update system and method for intermediate frequency |
| CN106992828B (en) * | 2017-06-01 | 2023-11-21 | 上海埃威航空电子有限公司 | Marine intermediate frequency digital broadcasting system |
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| CN106686079B (en) | 2020-03-27 |
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