CN102917369B - A kind of marine system of broadband wireless communication - Google Patents
A kind of marine system of broadband wireless communication Download PDFInfo
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- CN102917369B CN102917369B CN201210397265.0A CN201210397265A CN102917369B CN 102917369 B CN102917369 B CN 102917369B CN 201210397265 A CN201210397265 A CN 201210397265A CN 102917369 B CN102917369 B CN 102917369B
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Abstract
The present invention discloses a kind of marine system of broadband wireless communication, this system can realize sea and move the broadband wireless communications between ship, when solution existing communication system is used between the ship of sea, communication bandwidth is narrow, problems such as (hull rock) that communication distance is short and communication link is unstable. Described marine system of broadband wireless communication is mainly by a set of central station and overlap movement station more and form, and central station and movement station are arranged on respectively on different ships, and the ship at mounting center station can communicate with the ship of arbitrary installation movement station. The structure of central station and movement station is identical, includes antenna, outdoor unit, indoor unit and the network switch. For meeting the requirement of remote under the particular surroundings of sea and wideband transmit, in system, the tranmitting frequency of antenna is in 430MHz～860MHz frequency range; For opposing sea stormy waves waves, ensure the stability of communication link, the antenna in system adopts the omnidirectional antenna of transceiver, and forms V-shape by two identical antennas of performance.
Description
Technical field
The present invention relates to a kind of marine system of broadband wireless communication, belong to wireless communication technology field.
Background technology
The demand of marine broadband wireless communications has promoted the development of marine broadband wireless communications, from present case, marine wideApplication with radio communication can be divided into three types: the first kind, the broadband wireless communications between island and continental shelf, communication twoThe equipment of end is fixed, and this equipment is mainly in order to meet the demand of extra large islander to diverse network communication. SecondClass, the radio communication between offshore and mobile ship, offshore equipment is fixed near extra large mountain top, and mobile ship is large vessel,Antenna installation height is all larger, and this kind equipment is mainly to meet the demand of these large vessels to broadband wireless communications; The 3rd class,Broadband wireless communications between mobile ship, is used for transmitting image, speech and other data.
For above-mentioned two classes application, at present domestic had a more ripe communication equipment, also comparative maturity in engineering application, andCommunication equipment for the 3rd class demand is also rare, and engineering application also runs into a lot of difficulties.
Summary of the invention
In view of this, the invention provides a kind of marine system of broadband wireless communication, this system can realize sea and move between shipBroadband wireless communications, when solving existing communication system and using between the ship of sea, communication bandwidth is narrow, the short and communication of communication distanceThe problems such as link unstable (hull rocks).
Marine system of broadband wireless communication of the present invention, comprising: a central station and one or more movement stations; Central stationBe arranged on respectively on different ships with movement station.
The structure of described central station and movement station is identical, includes antenna, outdoor unit, indoor unit and the network switch; ItsMiddle outdoor unit is arranged in deck or the mast place of ship, is positioned near antenna; Indoor unit is positioned at cabin; Antenna is by penetratingFrequently cable is connected with outdoor unit; Outdoor unit is connected with indoor unit with power line by data wire respectively, wherein indoor unitBe outdoor unit power supply by power line, carry out exchanges data by data wire and outdoor unit; Indoor unit and the network switchBe connected; The network switch in described movement station is containing the function of router.
Described antenna is the omnidirectional antenna of transceiver, and the frequency range that can receive or launch radio wave is 430MHz～860MHz.
Described central station is set the radio wave of frequency range to movement station transmitting, receive the radio wave of each movement station simultaneously.
Described antenna forms V-structure by two identical single antenna of performance; The gain of antenna is 8-10db, Vertical SquareTo 10 °-15 ° of field angles; The angle of single antenna and vertical direction is 7 °-10 °.
The center frequency point of described movement station transmitting radio wave can be switched between 2-6 transmitting frequency.
Intranet is set respectively in described central station and movement station, and three Intranets are relatively independent; Indoor unit connects by the network switchConnect Intranet.
Beneficial effect:
(1) in native system central station antenna and movement station antenna transmit and receive frequency in 430MHz～860MHz frequency range,Radio wave in this frequency range has certain diffracting power, and transmission is subject to steam inhomogeneities to affect path loss values phase across the seaTo less, make electromagnetic signal can transmit larger distance, thereby can meet remote under the particular surroundings of sea and wideband transmitRequirement; The communication distance of wireless communication system of the present invention can be greater than 11 nautical miles.
(2) central station antenna and movement station antenna all adopt the omnidirectional antenna of transceiver, and by two antenna sets that performance is identicalBecome V-shape, can resist sea stormy waves and wave, ensure the stability of communication link.
(3) in the time selecting antenna, the gain of general antenna is the bigger the better, but gain increase can cause the lobe of antenna vertical directionAngle reduces, and affects the coverage of antenna, in order to make the gain of antenna and the field angle of vertical direction have good coupling, and symbolClose the requirement of sea long distance and wideband transmit, the antenna in the present invention selects gain for 8-10db, 10 ° of the field angles of vertical direction-15 °, thus ensure that the range of receiving of antenna when gain is large also meets marine instructions for use.
(4) owing to selecting the antenna of 10 °-15 ° of vertical direction field angles, for ensureing in the situation that ship waves, still can be justNormal open letter, in V-shape antenna of the present invention, the angle of single antenna and vertical direction is 7 °-10 °.
(5) quantity of increase movement station median filter, can make the center frequency point of movement station between difference transmitting frequency, switch (logicalCrossing switching filter realizes), when movement station is in the time that some frequencies can not proper communication, be switched to another available frequency,Redundancy by transmitting-receiving frequency realizes reliable communication.
(6) the each communication ends in system arranges respectively Intranet in (referring to central station and two movement stations), and three Intranets are relatively onlyVertical, between without any IP, associated restriction is set, Intranet inside can the different service access type of arbitrary disposition, to realize dataShare.
Brief description of the drawings
Fig. 1 is the basic transmission architecture of marine system of broadband wireless communication of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
The present embodiment provides a kind of marine system of broadband wireless communication, and this system employs between mobile ship, realizes mobile at seaThe transmission of image, speech and other data between ship.
As shown in Figure 1, this system is mainly by a set of for the basic transmission architecture of the marine system of broadband wireless communication that the present embodiment providesCentral station and two cover movement station compositions, two cover movement stations are respectively 1# movement station and 2# movement station, and central station and two cover movement stations divideBe not arranged on three different ships, can make ship and arbitrary installation movement station at mounting center station by this communication system communication systemShip communicate.
Wherein central station comprises central station antenna, central station outdoor unit, central station indoor unit and the central station network switch.Wherein central station outdoor unit is arranged in deck or the mast place of ship, is positioned near central station antenna, prevents that radio-frequency cable is to letterNumber decay; Central station indoor unit is positioned at cabin. Central station outdoor unit comprises multiple wave filters, Base-Band Processing (modulationDemodulation), upconverter and power amplifier. Central station antenna is connected with the wave filter in central station outdoor unit by radio-frequency cable; CenterThe indoor unit of standing is connected with central station outdoor unit with power line by data wire, and central station indoor unit is by centered by power lineThe outdoor unit of standing power supply, carries out exchanges data by data wire and central station outdoor unit. In the present embodiment, outdoor unit withBetween indoor unit, data communication adopts optical fiber to connect, and indoor unit provides 1 road AC220V power supply to outdoor unit. Central stationIndoor unit is connected with other network equipment in central station by the central station network switch, realizes sharing of data.
Every cover mobile station apparatus includes movement station antenna, movement station outdoor unit, movement station indoor unit and movement station network and hands overChange planes. The structure of mobile station apparatus is identical with the structure of central station equipment, and the movement station network switch that do not coexist is containing the merit of routerCan, be convenient to central station different movement stations is distinguished.
Each communication ends (referring to central station and two movement stations) in system arranges respectively Intranet, and three Intranets are relatively independent, betweenWithout any IP, associated restriction is set, Intranet inside can the different service access type of arbitrary disposition. During central station indoor unit passes throughThe heart station network switch connects central station Intranet, and movement station indoor unit is by the movement station network switch that contains router featureConnect movement station Intranet. Router provides all Intranet mappings to process, and transfers to movement station indoor the data of Wide Area Network interfaceUnit, carries out transparent data forwarding.
Antenna on central station and two movement stations all adopts the omnidirectional antenna of transceiver, completes and sends or receive wireless signalFunction. Because stormy waves on sea is larger, the antenna being arranged on hull significantly waves because the effect of stormy waves produces, and easily leadsCause and receive signal generation deep fading, interrupt communication. Therefore,, in native system, the antenna on each station is complete by two performancesIdentical antenna composition V-type is arranged on hull, and wherein the angle of single antenna and vertical direction is 7 °-10 ° (outwards opening),Ensure in the situation that ship waves, still can proper communication. Antenna in native system can receive or launch 430MHz～The radio wave of 860MHz frequency range, the electromagnetic wave within the scope of this transmits across the sea and is subject to steam inhomogeneities to affect path lossBe worth relatively littlely, make electromagnetic signal can transmit larger distance. The gain of antenna is 8-10db, 10 ° of the field angles of vertical direction-15°。
Movement station indoor unit carries out the encoding and decoding of numeric field to data, to improve transmission bandwidth and system reliability. Central station chamberInterior unit carries out the encoding and decoding of numeric field to data, have multiplex function, to realize simultaneously and the merit of multiple mobile station communicatesEnergy.
In described central station outdoor unit and each movement station outdoor unit, all there are three bandpass filters, wherein the outdoor list of central stationOne, three wave filters in unit are for transmitting, and two for receiving; In movement station outdoor unit, two, three wave filters are for sending outPenetrate, one for receiving.
In the present embodiment, the center frequency point of the radio wave of central station transmitting is 580MHz, and its bandwidth taking is 10MHz,The frequency range of the radio wave of center transmitting is 570MHz～590MHz, and the center frequency point that central station receives is 465MHz, 690MHz。
The bandwidth of three bandpass filters that arrange in movement station outdoor unit is respectively 580MHz, 465MHz and 690MHz;The wave filter that wherein bandwidth is 580MHz is for the signal at receiving center station, and bandwidth is the filtering of 465MHz and 690MHzDevice is for launching radio wave to central station.
In order to ensure the reliability of communication, can on central station and movement station, increase bandpass filter, make the center frequency point of movement stationCan between multiple (being generally 2-6) transmitting frequency, switch (realizing by switching filter), at some frequencies notWhen energy proper communication, be switched to another available frequency, realize reliable communication by the redundancy of transmitting-receiving frequency.
The flow process that data are transferred to movement station by central station is as follows:
1) in central station, the online a certain network equipment mails to central station indoor unit by the network switch by data, and this network is establishedStandby can be computer or industrial control equipment etc.;
2) central station indoor unit receives after the data from the network equipment by dual-port redundancy backup NIU, dockingThe data of receiving are carried out numeric field processing, and described numeric field processing comprises 8B10B chnnel coding, Turbo chnnel coding, orthogonalFrequency division multiplexing (OFDM) modulation etc.;
3) central station indoor unit sends to central station outdoor unit by data after treatment by optical fiber;
4) central station outdoor unit receive data, data are transformed into analog domain, then base band data is upconverted to 430MHz～The transmit frequency band of 860MHz scope, and carry out power amplification;
5) central station outdoor unit sends to central station antenna by rf data by feeder line;
6) central station antenna sends data;
7) movement station antenna reception is from the wireless signal of central station, and is transferred to movement station outdoor unit by feeder line;
8) wireless signal of reception is down-converted to baseband signal by movement station outdoor unit, and be converted to numeric-field data, then logicalCross optical fiber data are sent to indoor unit;
9) movement station indoor unit to receive decoding data demodulation after data are mail to router;
10) data are mail to the network equipment in movement station Intranet by router.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention. AllWithin the spirit and principles in the present invention, any amendment of doing, be equal to replacement, improvement etc., all should be included in protection of the present inventionWithin scope.
Claims (3)
1. a marine system of broadband wireless communication, is characterized in that, leads to for realizing the broadband wireless moving between ship on seaLetter; Comprise: a central station and one or more movement stations; Central station and movement station are arranged on respectively on different ships;
The structure of described central station and movement station is identical, includes antenna, outdoor unit, indoor unit and the network switch; WhereinOutdoor unit is arranged in deck or the mast place of ship, is positioned near antenna; Indoor unit is positioned at cabin; Antenna passes through radio frequency electricalCable is connected with outdoor unit; Outdoor unit is connected with indoor unit with power line by data wire respectively, and wherein indoor unit is by electricitySource line is outdoor unit power supply, carries out exchanges data by data wire and outdoor unit; Indoor unit is connected with the network switch; InstituteState the network switch in the movement station function containing router;
Described antenna is the omnidirectional antenna of transceiver, and the frequency range that can receive or launch radio wave is 430MHz～860MHz:
Described central station is set the radio wave of frequency range to movement station transmitting, receive the radio wave of each movement station simultaneously;
Described antenna forms V-structure by two identical single antenna of performance;
The gain of described antenna is 8-lOdb, 10 °-15 ° of the field angles of vertical direction;
The angle of described single antenna and vertical direction is 7 °-10 °.
2. the marine system of broadband wireless communication of one as claimed in claim 1, is characterized in that, described movement station transmitting is wirelessThe center frequency point of electric wave can be switched between 2-6 transmitting frequency.
3. the marine system of broadband wireless communication of one as claimed in claim 1, is characterized in that, described central station and movement stationThe middle Intranet that arranges respectively, three Intranets are relatively independent; Indoor unit connects Intranet by the network switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397265.0A CN102917369B (en) | 2012-10-18 | 2012-10-18 | A kind of marine system of broadband wireless communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397265.0A CN102917369B (en) | 2012-10-18 | 2012-10-18 | A kind of marine system of broadband wireless communication |
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| Publication Number | Publication Date |
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| CN102917369A CN102917369A (en) | 2013-02-06 |
| CN102917369B true CN102917369B (en) | 2016-05-04 |
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| CN201210397265.0A Expired - Fee Related CN102917369B (en) | 2012-10-18 | 2012-10-18 | A kind of marine system of broadband wireless communication |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018061202A1 (en) * | 2016-09-30 | 2018-04-05 | 富士通株式会社 | Base station determination program, device, and method |
| CN108934017B (en) * | 2018-07-27 | 2021-09-14 | 中国联合网络通信集团有限公司 | Deployment method for antenna coverage adjustment part and ultra-wideband multimode equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1623341A (en) * | 2000-09-27 | 2005-06-01 | 爱罗莎特股份有限公司 | Low-height, low-cost, high-gain antenna and system for mobile platforms |
| CN101047409A (en) * | 2006-12-29 | 2007-10-03 | 葫芦岛联博电子技术有限公司 | Sea long distance signal transmission device |
| CN101958922A (en) * | 2010-08-10 | 2011-01-26 | 胡青 | Mobile IP technology-based automatic identification method for ships |
| CN102084694A (en) * | 2008-07-02 | 2011-06-01 | 贝莱尔网络公司 | High performance mobility network with autoconfiguration |
| CN102387186A (en) * | 2011-07-20 | 2012-03-21 | 北京亿海蓝科技有限公司 | Data transmission system and method for base station of automatic identification system for ship |
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2012
- 2012-10-18 CN CN201210397265.0A patent/CN102917369B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1623341A (en) * | 2000-09-27 | 2005-06-01 | 爱罗莎特股份有限公司 | Low-height, low-cost, high-gain antenna and system for mobile platforms |
| CN101047409A (en) * | 2006-12-29 | 2007-10-03 | 葫芦岛联博电子技术有限公司 | Sea long distance signal transmission device |
| CN102084694A (en) * | 2008-07-02 | 2011-06-01 | 贝莱尔网络公司 | High performance mobility network with autoconfiguration |
| CN101958922A (en) * | 2010-08-10 | 2011-01-26 | 胡青 | Mobile IP technology-based automatic identification method for ships |
| CN102387186A (en) * | 2011-07-20 | 2012-03-21 | 北京亿海蓝科技有限公司 | Data transmission system and method for base station of automatic identification system for ship |
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