CN108712713A - A kind of AIS data sharing devices and method of servicing based on WiFi - Google Patents
A kind of AIS data sharing devices and method of servicing based on WiFi Download PDFInfo
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- CN108712713A CN108712713A CN201810214984.1A CN201810214984A CN108712713A CN 108712713 A CN108712713 A CN 108712713A CN 201810214984 A CN201810214984 A CN 201810214984A CN 108712713 A CN108712713 A CN 108712713A
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- ais
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Position Fixing By Use Of Radio Waves (AREA)
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Abstract
The present invention relates to a kind of AIS data sharing devices and method of servicing based on WiFi.The sharing means are made of AIS equipment, AIS data sharing devices, AIS data sharing services, wherein AIS equipment is connected with AIS data sharing devices, and AIS data sharing devices are connected with AIS data sharing services.The AIS equipment is made of sea chart display module, AIS radio-frequency modules and GPS positioning module.The AIS data sharing devices are made of 1 interface unit, N number of WiFi units and are connected by RS485 buses.Interface unit in the AIS data sharing devices is made of microprocessor, level switch module, RS485 output modules.Advantageous effect using the present invention is：By the present apparatus and method of servicing, the data of an AIS equipment can share to common concern conduct of a vessel on a ship, contribute to the probability for reducing ship collision.
Description
Technical field
The present invention relates to ship automatic identification system more particularly to a kind of AIS data sharing devices and clothes based on WiFi
Business method.
Background technology
Ship automatic identification system abbreviation AIS (Automatic Identification System) is that a kind of collection is modern
The digital navaid and equipment that the technologies such as communication, computer, electronic information are integrated, by AIS equipment system and AIS base stations system
System composition, wherein AIS base stations system includes base station and monitoring center.By AIS systems, ship can obtain bank base and its automatically
His ship information reinforces the contact between ship, bank base.International Maritime Organization IMO is provided, the world is engaged in from 1 day July in 2004
More than 300 gross tons of transport, the above freighter of 500 gross tons of international carriage it is not engaged in and all passenger boats are both needed to installation AIS equipment.Phase
It answers, maritime office requires the self-propelled ship of domestic 300 tons to 500 tons coastal navigation ships, coastal underwater construction operation waterborne
Oceangoing ship etc. need to configure AIS equipment.It was verified that AIS can play the identification of communications and transportation ship and the traffic administration at transport harbour
Great role, to preventing ship collision from having played important function, marine incident rate is substantially reduced.In order to expand AIS coverage areas,
AIS system effectiveness is promoted, document CN102622914B has invented a kind of system for realizing spitkit anticollision by 3G mobile
And method, can meet the needs of 60 horsepowers or less ships；Document CN101615349B synthesis uses fishery private communication channel
Communication device obtain fishing boat information, the information equipped with AIS system ships received by AIS, by the analysis of data processing centre,
Processing, realize a kind of system of monitoring fishing boats for anti-collision alarm, can to the remote monitoring of fishing boat around and merchant ship, inquiry, with
Track, related data are apparent on electronic chart in real time, solve the fishing boat and merchant ship, fishing boat and fishing boat in China offshore fishing grounds course line
Between collision prevention, linked network the problems such as；To realize the requirement for command and control of passing through to cruiseway ship, to not installing AIS equipment
Ship provides AIS data and service, and document CN106453510A provides one kind and being based on AIS to the accurate pushed information of mobile client
Method, as long as installing special APP on the mobile terminal of crewman, background service system in real time, will be pushed away initiatively to special APP
It send and the binding associated navigation supported information of ship.Although navigation safety safeguards technique is developing always, still there is ship every year
Oceangoing ship collision accident occurs, the last such as on January 6th, 2018, Panamanian nationality oil carrier " SANCHI " wheel and Hong Kong nationality bulk freighter " CF
CRYSTAL " wheels are collided at about 160 nautical miles to the east of China entrance of Changjiang River, lead to great personnel, property loss.
In general, a set of AIS equipment is made of GPS positioning module, AIS radio-frequency modules and sea chart display module, it need to be in outdoor
1 GPS antenna and at least 1 VHF two are installed, a ship often installs a set of AIS equipment in cockpit.Therefore, only
The screen viewing sailing condition of the visual AIS equipment sea chart display module of personnel's ability of range (refers mainly to AIS to carry in cockpit
Situations such as navigation supported information of confession, including this foot direction, position, the position of surrounding ship, navigation), number is limited；If energy
Enough other staff that AIS data sharings are given to this ship, the ambient conditions of this ship of everybody common concern, then more can further play
The advantage of AIS systems contributes to the probability for reducing ship collision.
WiFi has the characteristics that speed is fast, reliability is high as a kind of wireless interconnection technology of maturation, has been mobile phone, flat
It is real gradually to have become sector application more because of the advantage that its is easy to use, networking is simple for the standarized component of the intelligent terminals such as plate computer
The preferred wireless scheme of existing data sharing.For example, document CN103595789B has invented a kind of wireless security electricity based on WiFi
Power file sharing devices achieve the effect that safely and fast sharing, improving the efficiency of management for electric system file；Document
CN103561281B is disappeared using the WiFi module for supporting direct-connected agreement by expanding probe request message etc. in P2P expanding packets
Breath, establishes principal and subordinate link with second terminal, realizes that the transmission of multimedia file is shared altogether；Document CN105872736A is then in TV
Upper setting WIFI hot spot function is established WiFi communication by the Wi-Fi hotspot and electronic equipment, is asked according to the operation of electronic equipment
The data exchange with electronic equipment is sought, the shared resource with electronic equipment is realized.
Therefore, shared AIS data and service unit based on WiFi if there is a set of, can be for cockpit with exterior domain ship
The smart mobile phone of member is mounted on the equipment such as dining room and playroom etc. tablet computer type information board access acquisition AIS data and clothes
The personnel in different posies can browse and obtains AIS data services, can improve the ability for ensureing navigation safety for business.
Invention content
The object of the present invention is to provide a kind of AIS data sharing devices and method of servicing based on WiFi, can be by one
The ships data that AIS equipment receives is issued in certain area coverage, is intelligent mobile terminal such as smart mobile phone, tablet computer etc.
The access and service for providing AIS data, allow shipmate different post personnel to pay close attention to sailing condition jointly.
In order to achieve the above object, the technical scheme is that：A kind of AIS data sharing devices based on WiFi by
AIS equipment, AIS data sharing devices, AIS data sharing services composition, wherein AIS equipment and AIS data sharing device phases
Even, AIS data sharing devices are connected with AIS data sharing services.
AIS equipment of the present invention is made of sea chart display module, AIS radio-frequency modules and GPS positioning module, and AIS is penetrated
Frequency module by Serial Port Line L101_2_TX, Serial Port Line L101_2_RX with sea chart display module is two-way is connected, GPS positioning module is logical
Serial Port Line L101_3_TX is crossed with sea chart display module to be connected；The location data of GPS positioning module output, the output of AIS radio-frequency modules
AIS message datas to sea chart display module after can be shown on its map, sea chart display module can also send out GPS positioning message
AIS radio-frequency modules are sent to, AIS networks are sent to by it.
AIS data sharing devices of the present invention are made of 1 interface unit, N number of WiFi units, wherein 1 interface
Unit is connected with N number of WiFi units by RS485 buses.The AIS messages received and GPS messages are sent to by interface unit
In RS485 buses, WiFi units receive data from RS485 buses, and are stored in local FIFO cachings.
It is described it is N number of refer to that required on-line intelligence terminal quantity to be mounted determines on a ship.1 interface unit and
N number of WiFi units can be an unbounded quantity of by the RS485 buses N for theoretically that is connected, but actually one big ship again
(containing crew size), quantity is also limited, belongs to closed type numeral-classifier compound.
Interface unit in AIS data sharing devices of the present invention, by microprocessor, level switch module 1 and electricity
Flat conversion module 2, RS485 output modules composition, wherein microprocessor respectively with level switch module 1, level switch module 2,
RS485 output modules are connected, and level switch module 1 is connected by L101_2_TX with the AIS radio-frequency modules in AIS equipment, level
Conversion module 2 is connected by L101_3_TX with the GPS positioning module in AIS equipment.
AIS data sharing services of the present invention are a on-line intelligence terminals, can be mobile phone, flat-panel monitor
The AIS of equal operations shares APP, is connected with AIS data sharing devices by the WiFi module of its own, timing wheel stream passes through WiFi
WiFi unit inquiry of the wireless http protocol into AIS data sharing devices obtains AIS data and GPS data, and AIS is shared
APP accordingly on map according to S57 standard shows the information in relation to navigation channel and navigation.
In order to achieve the above object, the specific method of servicing of the present invention is：In interface unit in AIS data sharing devices
Microprocessor there are an AIS data buffer storage arrays AIS_Data[N], preserve received from Com1, the correct AIS reports of verification
Text.There are a GPS datas to cache GPS_Data for microprocessor in interface unit, preserves received from Com2, verification correctly
NMEA-0813 agreements in GPRMC and GPGGA messages.Timing microprocessor in interface unit checks that AIS data are slow in turn
Deposit array AIS_Data, GPS data caching GPS_Data whether have data, then take out if there is data and be sent to by Com3
In RS485 buses, the data preserved in these cachings are then deleted.
WiFi units in AIS data sharing devices are as AIS data servers, the microprocessor (U301) of WiFi units
There are a GPS datas to cache WiFi_GPS_Data, only preserves a newest GPS NMEA protocol massages.
There are such as 1 structures of table for the microprocessor in WiFi units in AIS data sharing devices, i.e., by MMSI,
The data buffer storage array WiFi_AIS_Data of two fields of AIS_Data composition, preserves AIS protocol massages, in this caching array
The data message that one MMSI is wailed only preserves one.
Table 1WiFi_AIS_Data structures
| Field name | Explanation |
| MMSI | The catchword of watercraft AIS |
| AIS_Data | Complete AIS messages |
AIS data sharing services of the present invention, user are by operating in intelligent terminal such as mobile phone, tablet computer etc.
On AIS share APP obtain, APP is connected to the AIS data servers in sharing means by WiFi, and timing wheel stream passes through
Http protocol initiates GET request data to AIS data servers, and AIS data servers are from WiFi_GPS_Data, WiFi_AIS_
Data obtains data, using POST loopbacks GPS data and AIS data, GPS data, AIS networks of the APP thus to obtain this ship
The data such as surrounding's vessel position of middle transmission, and shown on map.
Advantageous effect using the present invention is：By the present apparatus and method of servicing, the number of an AIS equipment on a ship
According to that can share to the crewman for holding the equipment such as smart mobile phone, tablet computer on this ship, they can be in its other than cockpit
His region such as dining room, playroom etc. obtains AIS data and service, common concern conduct of a vessel, and helping, which reduces ship, touches
The probability hit.
The feature and advantage of the present invention will be described in detail by embodiment and in conjunction with attached drawing.
Description of the drawings
Fig. 1 is a kind of AIS data sharing device block diagrams based on WiFi of the present invention.
Fig. 2 is the interface unit schematic diagram of the AIS data sharing devices of the present invention.
Fig. 3 is the WiFi unit schematic diagrams of the AIS data sharing devices of the present invention.
Fig. 4 is the interface unit main flow chart of the AIS data sharing devices of the present invention.
Fig. 5 is the WiFi unit main flow charts of the AIS data sharing devices of the present invention.
Fig. 6 is the method flow diagram of the AIS data sharing services of the present invention.
Specific implementation mode
In Fig. 1, U101 is AIS equipment, and it is AIS data sharing services that U102, which is AIS data sharing devices, U103, wherein
AIS equipment (U101) is connected with AIS data sharing devices (U102), and AIS data sharing devices (U102) pass through WiFi and AIS numbers
It is connected according to shared service (U103)；
In AIS equipment (U101), U101_1 is sea chart display module, and U101_2 is AIS radio-frequency modules, and U101_3 is
GPS positioning module, L101_2_TX are Serial Port Lines, and AIS radio-frequency modules (U101_2) pass through Serial Port Line L101_2_TX, Serial Port Line
L101_2_RX is connected with sea chart display module (U101_1), GPS positioning module (U101_3) by Serial Port Line L101_3_TX and
Sea chart display module (U101_1) is connected.
In AIS data sharing devices (U102), (U102_1) is interface unit, and U102_2 is WiFi units, interface list
First (U102_1) is connected by RS485 with WiFi units (U102_2).
In Fig. 2, U201 is microprocessor, and U202 and U203 are level switch module 1 and level switch module 2 respectively,
U204 is RS485 output modules, microprocessor (U201) respectively with level switch module 1 (U202), level switch module 2
(U203), RS485 output modules (U204) are connected, and level switch module 1 (U202) is connected with Serial Port Line L101_2_TX, level
Conversion module 2 (U203) is connected with Serial Port Line L101_3_TX.
In Fig. 3, U301 is microprocessor, and U302 is level switch module, and U303 is WiFi module, microprocessor (U301)
It is connected with level switch module (U302), microprocessor (U301) is connected with WiFi module (U303), level switch module
(U302) 485 buses are connected to.
Specific implementation in order to further illustrate the present invention, in conjunction with attached drawing 4, Fig. 5 flow chart shown in, to application, this is shared
Device and method of servicing make specific implementation process description, include the following steps：
Step 501：Check whether Com1 receptions are completed, it is no to then follow the steps 504 if completing to then follow the steps 502；
Step 502：Check whether the verification for receiving data is correct, it is no to then follow the steps if correctly thening follow the steps 503
504；
Step 503：In AIS data buffer storage arrays AIS_Data[N]The empty caching AIS_Data[ of middle lookup;m], preservation receives
AIS data to AIS_Data[m], then execute step 504；
Step 504：Check whether Com2 receptions are completed, it is no to then follow the steps 507 if completing to then follow the steps 505；
Step 505：Check whether the verification for receiving data is correct, it is no to then follow the steps if correctly thening follow the steps 506
507；
Step 506：NMEA protocol types to receiving data check, only preserve GPRMC, GPGGA message to GPS_
Then Data executes step 507；
Step 507：It checks whether and is timed to, if to thening follow the steps 508, it is no to then follow the steps 501；
Step 508：Check whether GPS data caching GPS_Data has message data, it is no if there is thening follow the steps 509
Then follow the steps 510；
Step 509：Message is taken out from GPS data caching GPS_Data, then RS485 is sent to from Com3, is sent completely
GPS_Data cachings are just emptied afterwards, execute step 510；
Step 510：In AIS data buffer storage arrays AIS_Data[N]Middle lookup non-empty caches AIS_Data[x], then hold
Row step 511；
Step 511：If AIS_Data[x]There is message, just from AIS_Data[x]Message is taken out, is sent to from Com3
Then RS485 empties AIS_Data[x]Then caching executes step 501.
Step 601：In WiFi unit main flows, check whether serial ports reception is completed, completion is carried out step 602, otherwise
Step 601 is returned to continue waiting for receiving；
Step 602：Check whether the data check received is correct, it is no to then follow the steps if correctly thening follow the steps 603
601；
Step 603：It checks whether as GPS messages, it is no to then follow the steps 605 if it is thening follow the steps 604；
Step 604：WiFi_GPS_Data is emptied, the data received, which are saved in GPS data, caches WiFi_GPS_Data,
Then step 601 is executed；
Step 605：It checks whether as AIS messages, it is no to then follow the steps 601 if it is thening follow the steps 606；
Step 606：Parsing obtains MMSI numbers in the data received, executes step 607；
Step 607：Retrieval checks that array caching WiFi_AIS_Data whether there is the MMSI received and wail data, if
It is no to then follow the steps 609 in the presence of thening follow the steps 608；
Step 608：It deletes the corresponding MMSI received and wails data record, execute step 609；
Step 609：The MMSI for receiving data message catchwords, message are inserted into array and cache WiFi_AIS_Data, then
Execute step 601.
Step 701：Service starts in turn for the timing of the shared APP of AIS, executes step 702；
Step 702：It is connected to the server in sharing means by WiFi, GET request data are initiated by HTTP, are executed
Step 703；
Step 703：Server in sharing means caches WiFi_GPS_Data, data buffer storage array from GPS data
WiFi_AIS_Data obtains data, using POST loopbacks GPS data and AIS data, executes step 704；
Step 704：AIS shares APP and refreshes display on map with data are obtained；
Step 705：Service terminates in turn for timing.
Although specific embodiments of the present invention have been described above, those familiar with the art should manage
Solution, we are merely exemplary described specific embodiment, rather than are used for limiting the scope of the invention, any to be sent out by this
Equivalent modification and variation made by bright technology path inspiration, should all cover the range protected in the claims in the present invention
It is interior.
Claims (9)
1. a kind of AIS data sharing devices based on WiFi, it is characterized in that by AIS equipment, AIS data sharing devices, AIS data
Shared service forms, wherein AIS equipment is connected with AIS data sharing devices, AIS data sharing devices and AIS data sharings clothes
Business is connected.
2. a kind of AIS data sharing devices based on WiFi according to claim 1, it is characterized in that the AIS equipment,
It is made of sea chart display module, AIS radio-frequency modules and GPS positioning module, AIS radio-frequency modules pass through Serial Port Line L101_2_TX, string
Mouth line L101_2_RX with sea chart display module is two-way is connected, GPS positioning module is shown by Serial Port Line L101_3_TX and sea chart
Module is connected.
3. a kind of AIS data sharing devices based on WiFi according to claim 1, it is characterized in that the AIS data
Shared equipment, is made of 1 interface unit, N number of WiFi units, wherein 1 interface unit and N number of WiFi units pass through RS485
Bus is connected, it is described it is N number of refer to that required on-line intelligence terminal quantity to be mounted determines on a ship.
4. a kind of AIS data sharing devices based on WiFi according to claim 3, it is characterized in that the AIS data
Interface unit in shared equipment, by microprocessor, level switch module 1 and level switch module 2, RS485 output module groups
At wherein microprocessor is connected with level switch module 1, level switch module 2, RS485 output modules respectively, level conversion mould
Block 1 is connected by L101_2_TX with the AIS radio-frequency modules in AIS equipment, and level switch module 2 passes through L101_3_TX and AIS
GPS positioning module in equipment is connected.
5. a kind of AIS data sharing devices based on WiFi according to claim 1, it is characterized in that described is described
AIS data sharing services are a on-line intelligence terminals, can be that the AIS of the operations such as mobile phone, flat-panel monitor shares APP, lead to
The WiFi module of its own is crossed with AIS data sharing devices to be connected.
6. a kind of AIS data sharing devices and method of servicing based on WiFi, it is characterized in that：
1）The AIS data sharing devices are made of AIS equipment, AIS data sharing devices, AIS data sharing services,
In, AIS equipment is connected with AIS data sharing devices, and AIS data sharing devices are connected with AIS data sharing services, wherein AIS
Data sharing device is made of 1 interface unit, N number of WiFi units, wherein 1 interface unit and N number of WiFi units pass through
RS485 buses are connected, it is described it is N number of refer to that required on-line intelligence terminal quantity to be mounted determines on a ship；
2）The AIS equipment is by sea chart display module（U101_1）, AIS radio-frequency modules and GPS positioning module composition；
3）The AIS data sharing devices are made of interface unit, WiFi units, and wherein interface unit passes through RS485 buses
It is connected with WiFi units.
7. a kind of AIS data sharing devices and method of servicing based on WiFi according to claim 6, it is characterised in that：
Timing microprocessor in interface unit checks that AIS data buffer storage arrays AIS_Data, GPS data caching GPS_Data are in turn
It is no to have data, it then takes out if there is data and is sent in RS485 buses by Com3, then delete the number preserved in these cachings
According to.
8. a kind of AIS data sharing devices and method of servicing based on WiFi according to claim 6, it is characterised in that：
There are a GPS datas to cache WiFi_GPS_Data for microprocessor in WiFi units, only preserves a newest GPS NMEA
Protocol massages；The data buffer storage number that microprocessor in WiFi units is made of there are one two fields of MMSI, AIS_Data
Group WiFi_AIS_Data, preserves AIS protocol massages, and the data message of MMSI catchwords only preserves one in this caching array.
9. a kind of AIS data sharing devices and method of servicing based on WiFi according to claim 6, it is characterised in that：
AIS, which shares APP timing wheels and flows to AIS data servers, initiates GET request data, and AIS data servers are from WiFi_GPS_
Data, WiFi_AIS_Data obtain data, and using POST loopbacks GPS data and AIS data, APP is thus to obtain this ship
The data such as the surrounding's vessel position transmitted in GPS data, AIS networks, and shown on map.
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| CN201810214984.1A CN108712713A (en) | 2018-03-15 | 2018-03-15 | A kind of AIS data sharing devices and method of servicing based on WiFi |
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| CN110751856A (en) * | 2019-10-18 | 2020-02-04 | 芜湖安航电子商务有限公司 | Ship identification and positioning system and method |
| CN111292558A (en) * | 2020-02-18 | 2020-06-16 | 大连海事大学 | Marine intelligent terminal instant messaging APP based on ship broadband ad hoc network |
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| CN206557385U (en) * | 2017-01-23 | 2017-10-13 | 集美大学 | AIS portable transponders |
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| CN201444353U (en) * | 2009-07-24 | 2010-04-28 | 姚和平 | Fishing boat environment monitoring, collision-preventing and alarming system |
| CN103236192A (en) * | 2013-04-17 | 2013-08-07 | 大连海事大学 | Vessel law-violating monitoring and information inquiring system |
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