CN104579447A - AIS-system-based wireless relay network implementing method - Google Patents
AIS-system-based wireless relay network implementing method Download PDFInfo
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- CN104579447A CN104579447A CN201410770857.1A CN201410770857A CN104579447A CN 104579447 A CN104579447 A CN 104579447A CN 201410770857 A CN201410770857 A CN 201410770857A CN 104579447 A CN104579447 A CN 104579447A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G3/00—Traffic control systems for marine craft
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Abstract
The invention discloses an AIS-system-based wireless relay network implementing method. The AIS-system-based wireless relay network implementing method comprises the following steps: providing a shore-based AIS base station and wireless relay network ship-borne equipment, wherein the wireless relay network ship-borne equipment comprises a wireless relay network protocol module and an AIS mainframe; according to the shipping dynamic state of a ship in a shipping lane, actively sending an AIS message for monitoring the ship in the shipping lane and automatically forwarding AIS monitoring information of other ships by the wireless relay network ship-borne equipment; setting a forwarding frequency flag bit in a relay message by the wireless relay network protocol module so as to prevent two pieces of equipment from entering an infinite loop state in which the two pieces of equipment repeatedly forward the relay message of the opposite side mutually; periodically broadcasting a coverage identifying message of the AIS base station outwards by the shore-based AIS base station, receiving and indentifying the forwarded ship relay message, and converting the relay message into AIS position information after the relay message is analyzed. After application of the AIS-system-based wireless relay network implementing method, the monitoring ranges of a coastal area and an inland AIS base station can be widened, the AIS monitoring effect on a ship in an inland shipping lane can be improved, communication expenses are not generated and the application value is high.
Description
Technical field
The present invention relates to boats and ships field of wireless communication devices, particularly a kind of radio relay communication network implementation approach based on AIS system.
Background technology
Inland water transport, as an important component part in China's modernization transportation system, has become and has realized the modern valuable source of economic society.The bases realizing shipping information theory to the effective monitoring of cruiseway boats and ships.For many years, sea-route management department completes this target by attempting different technological means, and current Application comparison widely monitoring means comprises AIS ship automatic identification system, gprs system.But due to the geographical environment of navigation channel complexity, monitoring effect is not satisfactory, still there is leak, bring great potential safety hazard to the supervision of boats and ships.
AIS full name ship automatic identification system (Automatic Identification System), being born in the 90's of 20th century New Economy emergence, is the various new type of safe information system integrating modern communications, network and information technology.This system has been the navigator of another advanced person since radar application, supports to have developed VTS VTS, enhances the security of the lives and property waterborne and navigation safety.
The importance that this system is applied in cruiseway ship monitor is at present managed department's accreditation gradually, has now become the indispensable measure ensureing shipping safety waterborne.The advantage of AIS system mainly contains: not only can realize the anti-collision warning function between boats and ships by onboard AIS equipment on the one hand; The dynamic of navigation channel boats and ships can also be monitored in real time additionally by setting up AIS base station along the line in navigation channel.The position information of navigation channel boats and ships not only can be understood in real time by AIS system, the information that the name of vessel, the speed of a ship or plane, dimension of ship etc. of boats and ships are abundant can also be understood simultaneously, the transmission of information can not by the impact of weather conditions, and self-organization of network is without the need to running cost, and application cost is lower.These are all that other system is beyond one's reach, and have irreplaceability.
However, because AIS system is mainly for the system that the navigation safety of marine ships is researched and developed, come with some shortcomings in cruiseway application.Cruiseway geographical environment is complicated, the boats and ships in navigation channel are easily blocked by the object such as massif and structure crossing over river, AIS signal of communication is affected, causes AIS base station to there is monitoring blind area for the covering in indivedual area, bring great potential safety hazard to the supervision of boats and ships.The measure can taked at present only has and realizes by setting up more AIS base station along the line in navigation channel, but standard A IS base station and relevant auxiliary steel tower construction and the expense safeguarded all higher, be thus not suitable for setting up in a large number in navigation channel.This programme will carry out system research for this problem.
Summary of the invention
The present invention solves the technical problem existed in known technology, and proposes a kind of long-range relay of the ais signal of many boats and ships in navigation channel that utilizes, and indirectly expands the wireless communications method of AIS base station range.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is: a kind of radio relay communication network implementation approach based on AIS system, comprise bank base AIS base station and radio relay communication network ship-borne equipment, wherein radio relay communication network ship-borne equipment comprises radio relay communication network protocol module and AIS main frame;
Described radio relay communication network ship-borne equipment is dynamic according to the navigation of boats and ships in navigation channel, initiatively sends the AIS message being used for navigation channel ship monitor, and automatically forwards other watercraft AIS monitor message;
Described radio relay communication network protocol module is connected and composed by processor of single chip computer, RS232 serial communication process chip and power circuit;
This ship AIS identification code, name of vessel information are carried out compressed encoding by described radio relay communication network protocol module, and generate the order that control AIS main frame sends relay message;
Described radio relay communication network protocol module, in relay message, is provided with hop count flag bit, prevents from two equipment from entering each other repeating the endless loop state forwarding the other side's relay message;
The coverage identification message of AIS base station is periodically outwards broadcasted in described bank base AIS base station, and can receive the boats and ships relay message identifying and be forwarded, and converts AIS positional information to by after relay message parse.
The advantage that the present invention has and good effect are: the monitoring range that can be expanded AIS base station, inland river by this device, improve the AIS monitoring effect of cruiseway boats and ships.Functionally 1. initiatively can send the AIS message for navigation channel ship monitor, and automatically the boats and ships message outside AIS base station range be forwarded; 2. technology maturation, in navigation channel, between boats and ships, data can not be disturbed mutually, and data transmission credibility is high; 3. notebook data transmission technology can not produce communication cost, and using value is high.
Accompanying drawing explanation
Fig. 1 is radio relay communication network ship-borne equipment pie graph;
Fig. 2 is bank base network appliance pie graph;
Fig. 3 is radio relay communication network protocol module workflow diagram;
Fig. 4 is navigation channel watercraft AIS Signal transmissions and network coverage schematic diagram;
Fig. 5 is radio relay communication network protocol module pie graph.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, radio relay communication network ship-borne equipment is made up of radio relay communication network protocol module, AIS main frame and antenna part, the AIS message of other boats and ships that radio relay communication network protocol module one side Treatment Analysis AIS main frame receives, analyze the voyage conditions of boats and ships around, send AIS order control AIS main frame on the other hand and send the AIS message of specifying.
As shown in Figure 2, bank base network appliance is made up of AIS base station (built-in radio relay communication network protocol module), data converter and antenna part, AIS base station by the boats and ships signal that receives through the Internet or other dedicated network remote transmission to Surveillance center.
Be illustrated in figure 3 radio relay communication network ship-borne equipment internal agreement module work flow chart, ship-borne equipment needs the relay message of its ship of uninterrupted forwarding on the one hand in Fairway navigation process, judge on the other hand this ship whether in bank base AIS base station coverage, if in coverage, send the position signalling of this ship, otherwise send relay message.
As shown in Figure 4, the boats and ships navigated by water in one section of cruiseway have four, and there is one, AIS base station on bank.Have boats and ships 2, boats and ships 3 in the coverage of boats and ships 1, the coverage of boats and ships 3 has boats and ships 2, boats and ships 4, and boats and ships 4 are in the communication range of AIS base station.
The course of work is as follows:
1) radio relay communication network ship-borne equipment is established to comprise radio relay communication network ship-borne equipment in boats and ships 1, boats and ships 2, boats and ships 3, boats and ships 4; Have boats and ships 2, boats and ships 3 in the coverage of the radio relay communication network ship-borne equipment in boats and ships 1, the coverage of the radio relay communication network ship-borne equipment in boats and ships 3 has boats and ships 2, boats and ships 4, and boats and ships 4 are in the communication range of AIS base station.
2) first AIS base station is by sending coverage identification message, and the position signalling of the outside broadcast of timing oneself, if the boats and ships in navigation channel are not in the coverage of base station, then cannot receive the signal of this base station;
3) when the radio relay communication network ship-borne equipment in boats and ships 1 outwards sends AIS relay broadcast automatically, message content comprises the position of this ship, AIS identification code, name of vessel, radio relay communication network ship-borne equipment coverage due to boats and ships 1 comprises the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3, therefore the relay message that the radio relay communication network ship-borne equipment in boats and ships 1 sends can be received by the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3, again because the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3 is not also in the coverage of AIS base station, also the signal of AIS base station cannot be received, therefore the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3 also outwards sends the relay message of this ship, this information content to be forwarded after radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3 receives the relay message of ship 1, radio relay communication network ship-borne equipment now in boats and ships 2 and boats and ships 3 will receive mutually the relay message of the other side and forward, in coverage due to the radio relay communication network ship-borne equipment of boats and ships 4 in boats and ships 3, therefore, the boats and ships 1 of this ship relay message that the radio relay communication network ship-borne equipment in boats and ships 3 sends and forwarding and the relay message of boats and ships 2 can be received by the radio relay communication network ship-borne equipment in boats and ships 4, radio relay communication network ship-borne equipment in boats and ships 4 continues to forward after receiving these relay message, because boats and ships 4 are positioned at AIS base station range, therefore this ship position signal of boats and ships 4 and the boats and ships 1 of forwarding, boats and ships 2, the signal of boats and ships 3 can be received by AIS base station, the information of final four boats and ships is all received by AIS base station,
4) by the content of watercraft AIS relay message, Surveillance center can obtain position, the name of vessel data of boats and ships, namely needs the information monitored;
5) when boats and ships 1, boats and ships 2, boats and ships 3 sail the coverage of AIS base station into and after receiving the signal of base station, then stop sending relay message;
6) in relay message, be provided with hop count flag bit, prevent from two equipment from entering each other repeating the endless loop state forwarding the other side's relay message;
7) between above boats and ships signal tissue and transmission automatically complete, without the need to human intervention.
Fig. 5 is radio relay communication network protocol module pie graph; Radio relay communication network protocol module is connected and composed by processor of single chip computer, RS232 serial communication process chip and power circuit.
According to the above description, the solution of the present invention can be realized in conjunction with art technology.
Claims (2)
1., based on a radio relay communication network implementation approach for AIS system, comprise bank base AIS base station and radio relay communication network ship-borne equipment, wherein radio relay communication network ship-borne equipment comprises radio relay communication network protocol module and AIS main frame;
Described radio relay communication network ship-borne equipment is dynamic according to the navigation of boats and ships in navigation channel, initiatively sends the AIS message being used for navigation channel ship monitor, and automatically forwards other watercraft AIS monitor message;
Described radio relay communication network protocol module is connected and composed by processor of single chip computer, RS232 serial communication process chip and power circuit;
This ship AIS identification code, name of vessel information are carried out compressed encoding by described radio relay communication network protocol module, and generate the order that control AIS main frame sends relay message;
Described radio relay communication network protocol module, in relay message, is provided with hop count flag bit, prevents from two equipment from entering each other repeating the endless loop state forwarding the other side's relay message;
The coverage identification message of AIS base station is periodically outwards broadcasted in described bank base AIS base station, and can receive the boats and ships relay message identifying and be forwarded, and converts AIS positional information to by after relay message parse.
2. a kind of radio relay communication network implementation approach based on AIS system as claimed in claim 1, the course of work is as follows:
1) radio relay communication network ship-borne equipment is established to comprise radio relay communication network ship-borne equipment in boats and ships 1, boats and ships 2, boats and ships 3, boats and ships 4; Have boats and ships 2, boats and ships 3 in the coverage of the radio relay communication network ship-borne equipment in boats and ships 1, the coverage of the radio relay communication network ship-borne equipment in boats and ships 3 has boats and ships 2, boats and ships 4, and boats and ships 4 are in the communication range of AIS base station;
2) first AIS base station is by sending coverage identification message, and the position signalling of the outside broadcast of timing oneself, if the boats and ships in navigation channel are not in the coverage of base station, then cannot receive the signal of this base station;
3) when the radio relay communication network ship-borne equipment of the radio relay communication network ship-borne equipment in boats and ships 1 outwards sends AIS relay broadcast automatically, message content comprises the position of this ship, AIS identification code, name of vessel, radio relay communication network ship-borne equipment coverage due to boats and ships 1 comprises the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3, therefore the relay message that the radio relay communication network ship-borne equipment in boats and ships 1 sends can be received by the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3, again because the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3 is not also in the coverage of AIS base station, also the signal of AIS base station cannot be received, therefore the radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3 also outwards sends the relay message of this ship, this information content to be forwarded after radio relay communication network ship-borne equipment in boats and ships 2 and boats and ships 3 receives the relay message of ship 1, radio relay communication network ship-borne equipment now in boats and ships 2 and boats and ships 3 will receive mutually the relay message of the other side and forward, in coverage due to the radio relay communication network ship-borne equipment of boats and ships 4 in boats and ships 3, therefore, the boats and ships 1 of this ship relay message that the radio relay communication network ship-borne equipment in boats and ships 3 sends and forwarding and the relay message of boats and ships 2 can be received by the radio relay communication network ship-borne equipment in boats and ships 4, radio relay communication network ship-borne equipment in boats and ships 4 continues to forward after receiving these relay message, because boats and ships 4 are positioned at AIS base station range, therefore this ship position signal of boats and ships 4 and the boats and ships 1 of forwarding, boats and ships 2, the signal of boats and ships 3 can be received by AIS base station, the information of final four boats and ships is all received by AIS base station,
4) by the content of watercraft AIS relay message, Surveillance center can obtain position, the name of vessel data of boats and ships, namely needs the information monitored;
5) when boats and ships 1, boats and ships 2, boats and ships 3 sail the coverage of AIS base station into and after receiving the signal of base station, then stop sending relay message;
6) in relay message, be provided with hop count flag bit, prevent from two equipment from entering each other repeating the endless loop state forwarding the other side's relay message;
7) between above boats and ships signal tissue and transmission automatically complete, without the need to human intervention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410770857.1A CN104579447A (en) | 2014-12-15 | 2014-12-15 | AIS-system-based wireless relay network implementing method |
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| CN201410770857.1A CN104579447A (en) | 2014-12-15 | 2014-12-15 | AIS-system-based wireless relay network implementing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196859A (en) * | 2017-12-26 | 2018-06-22 | 新诺北斗航科信息技术（厦门）股份有限公司 | A kind of Shipborne terminal remote upgrade method based on AIS communications |
| CN108961840A (en) * | 2017-05-26 | 2018-12-07 | 东莞前沿技术研究院 | Control and monitoring system for ships and its method |
| CN109191914A (en) * | 2018-11-05 | 2019-01-11 | 福建师范大学 | A kind of cruiseway ais signal monitoring system and monitoring device and monitoring method |
| GB2569413A (en) * | 2018-05-30 | 2019-06-19 | Quick Teck Electronics Ltd | Improvements in or relating to AIS communication apparatus and/or methods |
| CN113433938A (en) * | 2021-06-09 | 2021-09-24 | 小虎鲸(武汉)智能科技有限公司 | Unmanned ship system and method for cooperative work |
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| CN1737877A (en) * | 2005-09-06 | 2006-02-22 | 大连海事大学 | A Ship Automatic Identification System Based on Public Network GPRS/CDMA/3G |
| CN101059910A (en) * | 2007-05-24 | 2007-10-24 | 大连海事大学 | A near-shore ships mobile video monitor system |
| CN101441471A (en) * | 2008-12-29 | 2009-05-27 | 山东大学 | Automatic recognition monitoring system of marine vehicle |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1737877A (en) * | 2005-09-06 | 2006-02-22 | 大连海事大学 | A Ship Automatic Identification System Based on Public Network GPRS/CDMA/3G |
| CN101059910A (en) * | 2007-05-24 | 2007-10-24 | 大连海事大学 | A near-shore ships mobile video monitor system |
| CN101441471A (en) * | 2008-12-29 | 2009-05-27 | 山东大学 | Automatic recognition monitoring system of marine vehicle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961840A (en) * | 2017-05-26 | 2018-12-07 | 东莞前沿技术研究院 | Control and monitoring system for ships and its method |
| CN108196859A (en) * | 2017-12-26 | 2018-06-22 | 新诺北斗航科信息技术（厦门）股份有限公司 | A kind of Shipborne terminal remote upgrade method based on AIS communications |
| GB2569413A (en) * | 2018-05-30 | 2019-06-19 | Quick Teck Electronics Ltd | Improvements in or relating to AIS communication apparatus and/or methods |
| GB2569413B (en) * | 2018-05-30 | 2020-04-22 | Quick Teck Electronics Ltd | Improvements in or relating to AIS communication apparatus and/or methods |
| CN109191914A (en) * | 2018-11-05 | 2019-01-11 | 福建师范大学 | A kind of cruiseway ais signal monitoring system and monitoring device and monitoring method |
| CN109191914B (en) * | 2018-11-05 | 2023-09-12 | 福建师范大学 | An inland waterway AIS signal monitoring system, monitoring device and monitoring method |
| CN113433938A (en) * | 2021-06-09 | 2021-09-24 | 小虎鲸(武汉)智能科技有限公司 | Unmanned ship system and method for cooperative work |
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Application publication date: 20150429 |