CN102034367B - System for identifying and positioning ships, and identification and positioning method thereof - Google Patents
System for identifying and positioning ships, and identification and positioning method thereof Download PDFInfo
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Abstract
The invention discloses a system for identifying and positioning ships, and an identification and positioning method thereof. The system for identifying and positioning the ships comprises a plurality of automatic identification system (AIS) receivers and an AIS information summary server, wherein the AIS receivers receive AIS signals sent by the ships; the plurality of AIS receivers are communicated with the AIS information summary server through the Internet; and the AIS information summary server receives signals transmitted by the AIS receivers, processes the signals and stores the signals into a database. In the method, communication is realized by the Internet, and secondary summary is adopted. Due to the structure and the method, the system has the advantages of: 1, greatly reducing cost by replacing the conventional global position system (GPS) system by using the Internet to realize communication; 2, processing a large number of full-stream domain AIS messages, and sampling and tracing historical data; and 3, analyzing and compressing a large quantity of AIS data by secondary summary technology, and improving the capacity of processing AIS information.
Description
Technical field
The present invention relates to boats and ships identification, field of locating technology, particularly a kind of boats and ships identification, positioning system and recognition positioning method thereof.
Background technology
Ship automatic identification system (AIS) is made up of bank base (base station) facility and ship-borne equipment jointly, is that a kind of novel collection network technology, modern communications technology, computer technology, electronic information display technique are the digital navaid and the equipment of one.
Ship automatic identification system (AIS) is formed by the IFF development of naval vessel aircraft; Cooperate GPS (GPS) boats and ships such as accommodation, ship's speed, the rate of changing course and course dynamically to be combined boats and ships static datas such as name of vessel, catchword, drinking water and dangerous cargo broadcast near waters boats and ships and base station by very high frequency(VHF) (VHF) channel; Make contiguous (coverage is about 74 kms) boats and ships and base station can in time grasp near the sound attitude information of all boats and ships of sea; Be able to conversation coordination mutually at once; Take necessity to dodge action, safety of ship is had very great help.But this system realizes ship location, needs could realize information is sent to monitoring place arbitrarily, the whole world by satellite, and this just needs to force all ships to be transmission GPS locating information installation GPS communication apparatus, cause with high costs,
Summary of the invention
Technical matters to be solved by this invention is, to the deficiency of prior art, provides a kind of and can receive a plurality of closely AIS message simultaneously, can tackle a large amount of AIS Message Processing in full basin and lower-cost boats and ships identification, positioning system and recognition positioning method thereof.
For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of boats and ships identification, positioning system, comprise a plurality of AIS receivers, and described AIS receiver receives the ais signal that boats and ships send; Comprise that also AIS information gathers server; Described a plurality of AIS receiver gathers server through internet and AIS information respectively and carries out communication, and described AIS information gathers the signal that server receives the transmission of AIS receiver, and with depositing database after the signal Processing in.
Described AIS information is transferred to the electronic chart information display system after gathering the signal Processing of server with reception.
Described AIS information gathers server and comprises that the overall AIS information of mutual communication gathers server and regional AIS information gathers server.
Described AIS receiver comprises demodulation module, receiver module, AIS type selecting module, serial server chip and Ethernet interface, and described demodulation module, receiver module, AIS type selecting module, serial server chip and Ethernet interface are for being linked in sequence.
The receiving chip model of described receiver module is CMX910.
The recognition positioning method of a kind of boats and ships identification, positioning system, it is characterized in that: this method may further comprise the steps:
A) a plurality of AIS receivers receive each item ship information that sends from each boats and ships respectively; Gather server through internet transmission to regional AIS information; Area AIS information gathers server information is decoded, selected; After filtering out the duplicate message that receives, the information transmission after filtering is gathered server to overall AIS information;
B) overall AIS information gathers and deposits database in after server screens, gathers the information that gathers server from regional AIS information and receive, and with information transmission to the electronic chart information display system;
C) user inquires about at the ship information that the electronic chart information display system is understood need as required.
In the described step a), after regional AIS information gathered the information decoding of server with reception, querying regional ship data pool judged whether ship information occurred in setting-up time, the information filtering that repeats is fallen.
Described setting-up time is 5 minutes.
In the described step b); Overall situation AIS information gathers server will gather information that server receives and the ship information the system database is made comparisons from regional AIS information; Judge whether the ship information that receives does not deposit database in the official hour setting value, the judgement back is stored new information and is filtered out the ship information of repetition.
Described time set value is 30 minutes.
The present invention adopts said structure and method, has the following advantages: 1, replace gps system in the past to realize communication with the internet, GPS equipment needn't be installed, greatly reduce cost, popularizing of internet also improved the convenience of using greatly; 2, can receive the method for a plurality of closely AIS message simultaneously, realize that full basin covers, and does not have the blind area.Can tackle the processing of a large amount of AIS message in full basin, and the sampling of historical data is followed the trail of; 3, adopt secondary to gather technology, a large amount of AIS data are analyzed, compressed, improved AIS information processing ability.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation;
Fig. 1 is a logical organization block diagram of the present invention;
Fig. 2 is the structured flowchart of AIS receiver among the present invention;
Fig. 3 is the software flow pattern of system identification location boats and ships signal among the present invention;
Fig. 4 gathers the software flow pattern of server filtering information for regional AIS information among the present invention;
Fig. 5 gathers the software flow pattern of server filtering information for overall AIS information among the present invention;
In Fig. 1～Fig. 2,1, the AIS receiver; 2, electronic chart information display system; 3, overall AIS information gathers server; 4, regional AIS information gathers server; 5, demodulation module; 6, receiver module; 7, AIS type selecting module; 8, serial server chip; 9, Ethernet interface.
Embodiment
Like Fig. 1～a kind of boats and ships identification shown in Figure 2, positioning system; Comprise a plurality of AIS receivers 1; For the ship to full basin, inland river and very long shore line positions, need about inland river bank and seashore interval 60 kms, (according to landform and electromagnetic environment factor) arrange a plurality of AIS receivers 1.AIS receiver 1 receives the ais signal that boats and ships send; This system comprises that also AIS information gathers server; A plurality of AIS receivers 1 gather server through internet and AIS information respectively and carry out communication; AIS information gathers the signal that server receives 1 transmission of AIS receiver, and with depositing database after the signal Processing in.
AIS information is transferred to electronic chart information display system 2 after gathering the signal Processing of server with reception.AIS information gathers server and comprises that the overall AIS information of mutual communication gathers server 3 and gathers server 4 with regional AIS information.AIS receiver 1 comprises demodulation module 5, receiver module 6, AIS type selecting module 7, serial server chip 8 and Ethernet interface 9, and demodulation module 5, receiver module 6, AIS type selecting module 7, serial server chip 8 and Ethernet interface 9 are for being linked in sequence.The receiving chip model of receiver module 6 is CMX910.
AIS message database, electronic chart information display system 2 and Web server are formed information issuing system.The user need not to install additional software, only needs on any computer, to use browser, and the input network address can be connected to information issuing system.Information issuing system receives user's Web service request, and the database of inquiry AIS message database and electronic chart information display system 2 provides ship to search; The zone ship monitoring; The ship historical position is followed the tracks of, and services such as ship loading situation analysis are analyzed in the ship drinking water.
Sent an AIS message in per under sail 2 to 10 seconds by the regulation ship, in berthing, AIS message of transmission in per 3 minutes.So total system information processed amount is very large, if there are 50,000 boats and ships that AIS equipment is installed, then system will listen to 10000 AIS message by per second, will receive 800,000,000 AIS message in one day.Have no existing independent database can store or handle lot of data like this separately.Because the AIS message that same ship sends might be received by one or more AIS receiver, and send to AIS message and gather server.Then might gather the information that server duplicates in AIS message.Native system can filter out the information of repetition well.
The AIS receiver is used to monitor the AIS information broadcast of boats and ships.Receiver can be positioned on any place and ship that power supply supply arranged.Can directly enter the Internet if settle environment to have, then with AIS receiver and the Internet wired connection through wired (ADSL, special line or LAN).Otherwise the AIS receiver can be connected with the Internet through moving the 3G communication network.Each AIS receiver has all disposed the serial server module, and the IP address that AIS message purpose message gathers server can be set.After the AIS receiver receives AIS message, message is directly sent to AIS message through the Internet gather server.The AIS receiver has the message screening module of utilizing FPGA (field programmable gate array, model are IGLOO M1IGLOO/e) design.As everyone knows, have type of message in 26 in the AIS message.Wherein, type 4,6,7,10,11,12,13,14,15,16,17,20,21,22,23,25,26 do not comprise position and ship status information.The message screening module reads the message type field of every message, and promptly the 0-5 bit if message is above type, then abandons automatically.
The recognition positioning method of a kind of boats and ships identification, positioning system, this method may further comprise the steps:
A) a plurality of AIS receivers receive each item ship information that sends from each boats and ships respectively; Gather server through internet transmission to regional AIS information; Area AIS information gathers server information is decoded, selected; After filtering out the duplicate message that receives, the information transmission after filtering is gathered server to overall AIS information;
B) overall AIS information gathers and deposits database in after server screens, gathers the information that gathers server from regional AIS information and receive, and with information transmission to the electronic chart information display system;
C) user inquires about at the ship information that the electronic chart information display system is understood need as required.
Software flow pattern for system identification location boats and ships signal among the present invention shown in Figure 3, flow process roughly comprises following step:
In step 100, flow process begins;
In step 101, the AIS receiver is gathered ship information and is transferred to regional AIS information and gathers server, and flow process gets into step 102;
In step 102, regional AIS information gathers server information is carried out first order filtration, removes duplicate message, and flow process gets into step 103;
In step 103, overall AIS information gathers server information is carried out second level filtration, and flow process gets into step 104;
In step 104, the information transmission that overall AIS information will gather after server will be handled arrives the electronic chart information display system, and flow process gets into step 105;
In step 105, user inquiring.
In the step a) of the recognition positioning method of boats and ships identification, positioning system, after regional AIS information gathered the information decoding of server with reception, querying regional ship data pool judged whether ship information occurred in setting-up time, the information filtering that repeats is fallen.This setting-up time is 5 minutes.Area AIS information gathers server and gathers program by the local level data, and liquidation procedures and local level combined data storehouse are formed.The AIS receiver is divided into the ground block according to the geographic position, and the AIS receiver of areal piece all sends to corresponding regional AIS information with message through the IP address and gathers server.Because repetition message is mainly produced by the AIS receiver of areal piece.Local level gathers the following algorithm of server by utilizing and removes repetition message: each gathers program and sets up a hash table in the internal memory according to MMSI, promptly regional ship data pool, with maritime mobile service sign (MMSI) field of message as major key.Come the message of corresponding boats and ships in the question blank as new AIS message is defeated.When not having the message of these boats and ships in the table, insert new message; When having had the message of these boats and ships in the table; Read the time field of message in the table; If the timestamp of existing message and the timestamp of new information are only poor less than the time of setting (can be 5 minutes); Abandon new message, otherwise replace the legacy data value, and data are sent to overall AIS message collection procedure with new message.This design can avoid a large amount of duplicate messages to get into Core server, causes system's response request fast.Said procedure is that the first order is filtered.
Shown in Figure 4 is the software flow pattern that regional AIS information gathers the server filtering information among the present invention, and flow process roughly comprises following step:
In step 200, flow process begins;
In step 201, wait for receiving the AIS message that flow process gets into step 202;
In step 202, receive the AIS message, flow process gets into step 203;
In step 203, to the decoding of AIS message, flow process gets into step 204;
In step 204, extract AIS information, flow process gets into step 205;
In step 205, querying regional ship data pool, flow process gets into step 206;
In step 206, judge that whether identical ship information occurred in 5 minutes, if judged result is for being, flow process is returned step 201, if judged result is not for, flow process entering step 207;
In step 207, information is sent to ship information gathering program, flow process is returned step 201.
In the step b); Overall situation AIS information gathers server will gather information that server receives and the ship information the system database is made comparisons from regional AIS information; Judge whether the ship information that receives does not deposit database in the official hour setting value, the judgement back is stored new information and is filtered out the ship information of repetition.This time set value is 30 minutes.
The overall situation gathers program and sets up a hash table in the internal memory equally, and promptly overall ship data pool is a major key with MMSI.Send over information as regional AIS message reception program.The message of corresponding boats and ships in the question blank.When not having the message of these boats and ships in the table, insert new message and deposit database in; When having had the message of these boats and ships in the table; Read the time field of message in the table,, abandon new message if the timestamp of the timestamp of existing message and new information is only poor less than time set value (being 30 minutes); Otherwise, and add data base entries with new message replacement legacy data value.Database is removed existing fate to reach in (being defaulted as 30 days) data clauses and subclauses of threshold value by timed sequence every day.For the ease of adopting ship name to inquire about, increase the boats and ships index especially.Said procedure is that filter the second level.
Fig. 5 is the software flow pattern that overall AIS information gathers the server filtering information among the present invention, and flow process roughly comprises following step:
In step 300, flow process begins;
In step 301, ship information is carried out initialization in the reading database, and flow process gets into step 302;
In step 302, wait for reception information, flow process gets into step 303;
In step 303, ship information to be inserted in the overall ship data pool in the internal memory, flow process gets into step 304;
In step 304, whether this ship information is arranged in the judgment data pond, if judged result is for being, flow process gets into step 306, if judged result is not for, flow process entering step 305;
In step 305, deposit ship information in database, flow process is returned step 302;
In step 306, judge that whether this ship information do not deposit database in existing 30 minutes, if judged result is for being, flow process is returned step 305, if judged result is for denying that flow process is returned step 302.
The user can be through the electronic chart client in convergent-divergent and the mobile browser, the information of inquiry electronic chart.Request sends to the information issuing system Web server through Web service.Web server request electronic chart server is transferred to client with electronic chart.
The user can be according to the position enquiring boats and ships: 1, the user chooses query context on online sea chart, and will ask to send to information issuing system through Web service.2, information issuing system inquiry electronic chart server obtains spatial dimension.3, with the spatial dimension be up-to-date information in the corresponding regional ship data pool of keyword query.4, ship information is carried in electronic chart, turns back to the client in the user browser.
The user can be according to the MMSI or the name query position of boats and ships: 1, the user imports the MMSI or the name query vessel's position of boats and ships in browser, and will ask to send to information issuing system through Web service.2, information issuing system parallel query overall situation ship data pool.Extract location information in the message of returning.3, use location information inquiry electronic chart server, and the scope of definite electronic chart.4, the scope of using electronic chart obtains the information of all boats and ships in the corresponding sea chart again at the regional ship data pool inquiry of correspondence ship.5, ship information is installed on the sea chart, is transferred to client.
The user can be according to the MMSI of boats and ships or the historical record of name query boats and ships: 1, the user imports the MMSI or the name query boats and ships historical record of boats and ships in browser, and will ask to send to information issuing system through Web service.2, information issuing system is according to the MMSI Query Database, obtains all data of operation in the boats and ships three months.3, the spatial dimension of Ship ' operation is confirmed the scope of electronic chart.4, historical data is carried on the electronic chart, is transferred to client.
System can receive the user and subscribe to, and for example ship arrives certain zone prompting, the weather forecast of ship periphery or the like.The flow process of information subscribing release process does; Read all from the information subscribing database and subscribe to clauses and subclauses; All subscription clauses and subclauses that read of poll; From overall ship data pool, read ship information according to subscribing to clauses and subclauses, judge whether to reach information and send condition, reach and both send subscription information to client browser, mobile phone or mailbox.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (8)
1. boats and ships identification, positioning system; Comprise a plurality of automatic recognition system receivers (1); Described automatic recognition system receiver (1) receives the automatic recognition system signal that boats and ships send; It is characterized in that: comprise that also automatic recognition system information gathers server; Described a plurality of automatic recognition system receivers (1) gather server through internet and automatic recognition system information respectively and carry out communication; Described automatic recognition system information gathers the signal that server receives automatic recognition system receiver (1) transmission; And with depositing database after the signal Processing in, described automatic recognition system information is transferred to electronic chart information display system (2) after gathering the signal Processing of server with reception, and described automatic recognition system information gathers server and comprises that the overall automatic recognition system information of mutual communication gathers server (3) and regional automatic recognition system information gathers server (4).
2. a kind of boats and ships identification according to claim 1, positioning system; It is characterized in that: described automatic recognition system receiver (1) comprises demodulation module (5), receiver module (6), automatic recognition system type selecting module (7), serial server chip (8) and Ethernet interface (9), and described demodulation module (5), receiver module (6), automatic recognition system type selecting module (7), serial server chip (8) and Ethernet interface (9) are for being linked in sequence.
3. a kind of boats and ships identification according to claim 2, positioning system, it is characterized in that: the receiving chip model of described receiver module (6) is CMX910.
4. the recognition positioning method of a boats and ships according to claim 1 identification, positioning system, it is characterized in that: this method may further comprise the steps:
A) a plurality of automatic recognition system receivers receive each item ship information that sends from each boats and ships respectively; Gather server through internet transmission to regional automatic recognition system information; Area automatic recognition system information gathers server information is decoded, selected; After filtering out the duplicate message that receives, the information transmission after filtering is gathered server to overall automatic recognition system information;
B) overall automatic recognition system information gathers and deposits database in after server screens, gathers the information that gathers server from regional automatic recognition system information and receive, and with information transmission to the electronic chart information display system;
C) user inquires about at the ship information that the electronic chart information display system is understood need as required.
5. the recognition positioning method of a kind of boats and ships identification according to claim 4, positioning system; It is characterized in that: in the described step a); After area automatic recognition system information gathers the information decoding of server with reception; Querying regional boats and ships data pool judges whether ship information occurred in setting-up time, the information filtering that repeats is fallen.
6. the recognition positioning method of a kind of boats and ships identification according to claim 5, positioning system, it is characterized in that: described setting-up time is 5 minutes.
7. the recognition positioning method of a kind of boats and ships identification according to claim 4, positioning system; It is characterized in that: in the described step b); Overall situation automatic recognition system information gathers server will gather information that server receives and the ship information the system database is made comparisons from regional automatic recognition system information; Judge whether the ship information that receives does not deposit database in the official hour setting value, the judgement back is stored new information and is filtered out the ship information of repetition.
8. the recognition positioning method of a kind of boats and ships identification according to claim 7, positioning system, it is characterized in that: described time set value is 30 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010605331XA CN102034367B (en) | 2010-12-24 | 2010-12-24 | System for identifying and positioning ships, and identification and positioning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010605331XA CN102034367B (en) | 2010-12-24 | 2010-12-24 | System for identifying and positioning ships, and identification and positioning method thereof |
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| CN102034367A CN102034367A (en) | 2011-04-27 |
| CN102034367B true CN102034367B (en) | 2012-05-23 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707920B (en) * | 2012-06-22 | 2015-05-13 | 上海埃威航空电子有限公司 | Data processing equipment and method for filtering identical AIS messages |
| CN102800215B (en) * | 2012-08-01 | 2014-07-30 | 上海海事大学 | AIS (Automatic Identification System)-data-based regional idle ship counting system and realization method thereof |
| CN103344270B (en) * | 2013-06-05 | 2016-02-24 | 海华电子企业(中国)有限公司 | A kind of method identifying ship electronic equipment sensor |
| CN105119701B (en) * | 2015-08-06 | 2018-11-16 | 上海交通大学 | A kind of low complex degree synchronous method of satellite AIS ship oceangoing ship positioning system |
| CN105180943B (en) * | 2015-09-17 | 2016-08-17 | 江苏中大东博信息科技有限公司 | Ship-positioning system and method |
| CN105469643B (en) * | 2015-11-25 | 2018-01-02 | 中国电子科技集团公司第二十八研究所 | A kind of polygon label auto arranging method applied to VTS |
| CN105610456A (en) * | 2015-12-31 | 2016-05-25 | 福建伊斯普电子科技有限公司 | Nautical chart instrument utilizing Beidou satellite to navigate |
| CN106101073A (en) * | 2016-05-31 | 2016-11-09 | 天津七二通信广播有限公司 | Interior riverbank base AIS ship oceangoing ship wireless data transmission device and transmission method |
| CN106230464B (en) * | 2016-07-26 | 2019-05-10 | 重庆大学 | Ship real-time tracking ship-to-shore call method |
| CN108055068B (en) | 2017-12-08 | 2020-08-25 | 上海埃威航空电子有限公司 | Test method of airborne analog simulation system for receiving offshore AIS signals |
| CN108549390A (en) * | 2018-05-25 | 2018-09-18 | 深圳市华讯方舟装备技术有限公司 | A kind of ships and light boats recognition methods, device, system and a kind of storage medium based on automatic Pilot waterborne |
| CN109709589B (en) * | 2019-01-09 | 2023-07-18 | 深圳市芯鹏智能信息有限公司 | Sea and air area three-dimensional perception prevention and control system |
| CN110751856B (en) * | 2019-10-18 | 2022-12-20 | 芜湖安航电子商务有限公司 | Ship identification and positioning system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054709Y (en) * | 2007-05-24 | 2008-04-30 | 大连海事大学 | A high-speed ship and shore data transmitter based on CDMA network |
| CN101344994A (en) * | 2008-03-20 | 2009-01-14 | 上海海事大学 | Vessel movement monitoring and informing system and implementing method thereof |
| CN101699314A (en) * | 2009-10-27 | 2010-04-28 | 天津七一二通信广播有限公司 | Onboard AIS equipment adopting DDS frequency synthesizer |
| CN201936459U (en) * | 2010-12-24 | 2011-08-17 | 吴安新 | Ship recognition and locating system |
-
2010
- 2010-12-24 CN CN201010605331XA patent/CN102034367B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054709Y (en) * | 2007-05-24 | 2008-04-30 | 大连海事大学 | A high-speed ship and shore data transmitter based on CDMA network |
| CN101344994A (en) * | 2008-03-20 | 2009-01-14 | 上海海事大学 | Vessel movement monitoring and informing system and implementing method thereof |
| CN101699314A (en) * | 2009-10-27 | 2010-04-28 | 天津七一二通信广播有限公司 | Onboard AIS equipment adopting DDS frequency synthesizer |
| CN201936459U (en) * | 2010-12-24 | 2011-08-17 | 吴安新 | Ship recognition and locating system |
Non-Patent Citations (2)
| Title |
|---|
| 张杏谷 等."航标信息系统".《大连海事大学学报》.2006,第32卷(第2期),第21-23页. |
| 王伟时."基于AIS技术的航标应用".《航海技术》.2003,(第4期),第21-22页. |
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