CN106056978B - A kind of waters security alarm method based on AIS system - Google Patents
A kind of waters security alarm method based on AIS system Download PDFInfo
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- CN106056978B CN106056978B CN201610367117.2A CN201610367117A CN106056978B CN 106056978 B CN106056978 B CN 106056978B CN 201610367117 A CN201610367117 A CN 201610367117A CN 106056978 B CN106056978 B CN 106056978B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G3/00—Traffic control systems for marine craft
- G08G3/02—Anti-collision systems
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- Ocean & Marine Engineering (AREA)
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Abstract
The present invention discloses a kind of waters security alarm method based on AIS system, first, waters locating for protective equipment will be needed to be divided into grid, establish safeguard management table according to mesh coordinate, facility coordinate, facility characteristic parameter etc., while establishing early warning and alarm parameters setting table；Secondly, extracting various parameters from information when receiving the ship information that ship borne type AIS system transmits, the resemblance parameter of facility coordinate and facility in ship position coordinates retrieval safeguard management table is used；Then be directed to different facilities, obtain ship at a distance from facility using different algorithms, and judge ship at a distance from facility, ship speed whether meet the early warning or alert if of setting.The present invention can protect the water surface and underwater facility; and early warning and alert if can be arranged by user flexibility, early warning and alarm, Shi Fan Wei Guang ﹑ using flexible quick, accurately can be carried out to threatening watercraft; safety guarantee is provided for water installations, there is certain economic value.
Description
Technical field
The present invention relates to one kind to be based on AIS(Automatic Identification System) ship automatic identification system
The waters security alarm method of system is based on AIS(Automatic Identification System more particularly to a kind of) system
The waters security alarm method of system belongs to the field of security technology in protection ocean, river, lake and underwater facility safety.
Background technique
In general, cloth is placed on the water surface and underwater facility in ocean, river, lake, inevitably will receive from water
Face navigation, the influence of operation ship, even occur ship and surface facility (such as offshore oilfield jacket, job platform) sometimes
It collides, ship anchor chain damages the behaviors accidents such as underwater line, the safety of the serious harm water surface and underwater facility.Pass through AIS
System obtains ship position, analyzes the safe distance of ship and facility, and dangerous tip information is notified operation ship in time, right
Avoiding or reducing disaster has great significance.
It is to obtain a kind of more reliable way of boat trip information currently with AIS system, AIS system is international logical
The navigation equipment that assisting navigation equipment and China mandatory requirement river, extra large shipping fleet must configure, can provide comprehensively
The various information of this ship, while can also receive the information of other ships sending.Domestic relevant unit and individual are based on AIS system
Carry out invention or innovation, and apply for related patents:
Chinese invention patent " the ships data table method for drafting based on AIS system " (102855308 A of CN) discloses one
The method that kind draws ships data using AIS data in sea chart.Screen is divided into the identical multiple units of size by the invention
Lattice, while whether the AIS data cells that judgement receives have been labeled the position being plotted on sea chart.The main mesh of this method
Be the position that water surface ship is determined using AIS data, to clearly indicate the information of sea chart.Since oil field water cannot be obtained
The location information of face and underwater facility and the method for lacking automatic alarm, can not report the ship that may endanger field facility
It is alert.
Chinese invention patent " a kind of 3G fishing boat anticollision terminal of integrated AIS " (202563703 U of CN) discloses one kind
The equipment that ship itself GPS data and other ships AIS data are alarmed is obtained using microprocessor, which is to pass through knowledge
Position between other other ships and equipment, carries out the alarm between ship, meets 60 horsepowers or less small-scale fishing vessel anticollisions
Safety requirements.The equipment carries out early warning just with the AIS data between ship, since the position of water installations can not be obtained,
Water installations cannot be protected.
Summary of the invention
The technical problem to be solved by the present invention is to propose a kind of security alarm method based on AIS system, this method is to peace
The water surface in anti-region, the position of underwater facility and outer dimension are managed, and are receiving the letter of boat trip provided by AIS system
After breath, quickly identifies the facility of ship Its Adjacent Waters, ship and facility, ship and curved pipe are calculated using different algorithms
The shortest distance of cable, ship and straight line umbilical, comprehensive distance and velocity conditions are alarmed, and the accident of ship damage facility is avoided
Occur.
To achieve the above object, the present invention is implemented as follows: a kind of waters security alarm method based on AIS system,
Include the following steps,
Step 1: zone of protection being divided into equidistant grid, the longitude and latitude data of 4 extreme coordinates of each grid
Be sequentially stored in safeguard management table, when grid represent region in facility is distributed with when, by the position of facility, facility name,
Facility resemblance parameter is inserted in the corresponding safeguard management table of the grid, wherein facility resemblance parameter includes facility class
Not, umbilical starting point coordinate, umbilical terminal point coordinate, camber line umbilical central coordinate of circle and radius of curvature, the water surface build Geometric center coordinates,
The water surface builds geometric center to facility edge longest distance, and facility is established early-warning parameters and alarm parameters, early-warning parameters packet
Include early warning ship speed, early warning ship and the surface facility shortest distance and early warning ship and the underwater umbilical shortest distance, alarm ginseng
Number includes alarm ship speed, alarm ship and the surface facility shortest distance and alarm ship and the underwater umbilical shortest distance；
Step 2: when receiving the information that onboard AIS system transmits, from the information extract ship position coordinates, speed,
Register MMSI number and ship title, using ship position coordinates and the mesh coordinate that is stored in safeguard management table one by one compared with,
When the x value and y value of ship position coordinates are all fallen in certain mesh coordinate region, if there is facility in the grid, read outside facility
Shape characteristic parameter；
Step 3: it resolves and determines whether the distance between above-mentioned ship and peripheral facility are greater than the safe distance of setting, and
Decide whether early warning and alarm after comprehensive ship velocity information, repeat step 2 when not needing early warning and alarm, need early warning and
When alarm, the MSSI number and name of vessel of threatening watercraft are shown, and add the MMSI number of threatening watercraft before information warning, pass through
Information warning is transferred in the ship borne type AIS system of the threatening watercraft by bank base formula AIS system.
Further, the facility in the step 1 is divided into surface facility, underwater straight line umbilical and underwater camber line umbilical.
Further, type of facility includes facility class indication, wherein surface facility is identified as P, underwater straight line umbilical mark
Know is that Z and underwater camber line umbilical are identified as H.
Further, when facility is surface facility, the method for solving ship and the distance between facility is, if ship position
Set coordinate be (x, y), the water surface build geometric center position coordinates be O (x0, y0), the water surface build geometric center to facility edge most
Long range L, ship and surface facility distance press formula 1It is calculated.
Further, it when facility is underwater straight line umbilical, solves ship and the method for the distance between umbilical is, if ship
Position coordinates are (x, y), umbilical starting point coordinate is (x1, y1), umbilical terminal point coordinate is (x2, y2), straight line umbilical straight line
Equation 2,It indicates, the vertical range D of ship to the underwater straight line umbilical is pressed
Formula 3,
It is calculated.
Further, it when facility is underwater camber line umbilical, solves ship and the method for the distance between camber line umbilical is,
If ship position coordinates be (x, y) pass through central coordinate of circle O(xc, yc of camber line umbilical when ship arc of approach spool cable), circle
Coordinate (x, y), ship and the arc position relationship of arc radius R, ship, the distance D for calculating ship and circular arc press formula 4,
It is calculated.
Working principle is: firstly, waters locating for protective equipment will be needed to be divided into grid, according to mesh coordinate, facility coordinate,
Facility characteristic parameter etc. establishes safeguard management table, while establishing early warning and alarm parameters setting table；Secondly, when receiving ship borne type
When the ship information that AIS system transmits, ship position coordinates, ship speed, the MMSI number of ship registration are extracted from information
With ship title, the resemblance parameter of facility coordinate and facility in ship position coordinates retrieval safeguard management table is used；
Then be directed to different facilities, obtain ship at a distance from facility using different algorithms, and judge ship at a distance from facility,
Whether ship speed meets the early warning or alert if of setting, when the condition is satisfied, by bank base formula AIS system by threatening watercraft
MMSI number, ship title, information warning be sent in onboard AIS system, prompt threatening watercraft pay attention to navigating by water, avoid damaging
The water surface and underwater facility.
The beneficial effects of the present invention are: accurately providing waters by dividing in advance and storing zone of protection grid and setting
The location information applied can quickly identify the position of facility and facility near ship after obtaining AIS data, and accurately calculate ship
Only at a distance from water installations.Unnecessary facility locations data have easily been filtered using safeguard management table, have improved calculating
Efficiency relatively substantially increases the response speed of safety alarm by the position of tables of data.
Detailed description of the invention
Fig. 1 is implementation method flow chart of the invention；
Fig. 2 is zone of protection grid and facility number schematic diagram of the invention；
Fig. 3 is that safeguard management of the invention indicates to be intended to；
Fig. 4 is that early warning and alarm parameters of the invention indicate to be intended to.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing:
The present invention is based on the waters security alarm method of AIS system, as shown in Fig. 3, zone of protection is divided into for step 1
Equally spaced grid marks the longitude and latitude data of the vertex position of net region four, by the longitude and latitude data of mesh vertex coordinates
Successively it is stored as safeguard management table Fig. 3；Establish early warning and alarm parameters table Fig. 4, by facility classify presetting early warning and alarm
Ship minimum speed and the shortest distance.
If there is field facility in grid, field facility information is inserted in Fig. 3 as follows, formation can be according to ship
The retrieval table of facility name and location information near position enquiring: surface facility class: facility name, facility geometric center position are sat
Mark, facility geometric center O (x0, y0) to facility edge longest distance L；Underwater umbilical straightway: umbilical title, umbilical straightway
Coordinate A (x1, y1), the B (x2, y2) of two endpoints；Underwater umbilical arc segment: the central coordinate of circle C of umbilical title, umbilical arc segment
(xc, yc), extreme coordinates (xs, ys) and (xe, ye), radius R.
In the present invention, safeguard management table, early warning and parameter in alarm parameters table and parameter arrangement can be according to specific
It sets, not only limits to and list provided in the present invention with object.
Accurate geographical location information can be obtained by forming concordance list using longitude and latitude data in this step；Establish facility name
Title and location retrieval table then accurately store the location information of water installations, ensure that the accurately and efficiently solution of follow-up data
It calculates.
Step 2, when receiving the information that onboard AIS system transmits, from the information extract ship position coordinates, speed,
Register MMSI number and ship title, using ship position coordinates and the mesh coordinate that is stored in safeguard management table one by one compared with,
When the x value and y value of ship position coordinates are all fallen in certain mesh coordinate region, if there is facility in the grid, read outside facility
Shape characteristic parameter；
Above-mentioned steps 2 more specifically, when receiving the information that AIS system transmits, extract ship position from information
Setting coordinate (x, y), ship speed and ship registration MMSI number, the number has global uniqueness.Use ship position coordinates
Compared with the mesh coordinate in safeguard management table Fig. 3, when the x value and y value of identification ship position coordinates all fall in certain mesh coordinate
When in region, grid number can be obtained, when retrieving has surface facility in grid, in reading facility name, facility geometry
Heart position coordinates, facility geometric center to facility edge longest distance；When retrieving in grid has underwater umbilical facility, read
Underwater umbilical title reads the coordinate of two endpoints of straightway umbilical if it is straightway umbilical, if it is arc segment pipe
Cable then reads the central coordinate of circle, extreme coordinates, radius of umbilical arc segment, if the umbilical in grid simultaneously include straightway and
Arc segment then reads simultaneously the relevant parameter of straightway umbilical and arc segment umbilical.
Step 3, it resolves and determines whether the distance between above-mentioned ship and peripheral facility are greater than the safe distance of setting, and
Decide whether early warning and alarm after comprehensive ship velocity information, repeat step 2 when not needing early warning and alarm, need early warning and
When alarm, the MSSI number and name of vessel of threatening watercraft are shown, and add the MMSI number of threatening watercraft before information warning, pass through
Information warning is transferred in the ship borne type AIS system of the threatening watercraft by bank base formula AIS system.
Above-mentioned steps 3 more specifically, are resolved ship with facility resemblance parameter and are set with ship position coordinates
The distance between apply, when the distance between ship speed, ship and facility are less than or equal in early warning and alarm parameters table simultaneously
When the early warning distance and early warning speed of setting, judge the ship for early warning ship；If speed is less than or equal to simultaneously with distance
When the alarm distance and alarm velocity that set in early warning and alarm parameters table, judge that the ship for ship of alarming, passes through bank at this time
Information warning is transferred in the ship borne type AIS system of the early warning ship by base formula AIS system, and the ship is reminded nearby to have facility,
It please sails out of as early as possible or careful driving, does not need to repeat step 2 when early warning or alarm.
According to the establishment type retrieved, surface facility, underwater straight line umbilical, underwater umbilical arc segment and facility locations letter
Breath resolves ship and facility distance:
(1) ship and surface facility distance.Ship position coordinates are (x, y), water surface building geometric center position coordinates are O
(x0, y0), the water surface build geometric center to facility edge longest distance L, and ship is calculated by formula 1 with surface facility distance:
Formula 1
(2) ship is at a distance from underwater straight line umbilical or underwater umbilical straightway.Underwater straight line umbilical or underwater umbilical are straight
Two extreme coordinates of line segment are (x1, y1), and (x2, y2) can be indicated with linear equation formula 2:
Formula 2
Ship position coordinates are (x, y), and the vertical range D of ship to straight line is calculated by formula 3:
Formula 3
(3) ship is at a distance from underwater umbilical arc segment.When ship is close to arc section sea pipe, pass through arc section sea pipe
Central coordinate of circle O(xc, yc), coordinate (x, y), ship and the arc position relationship of arc radius R, ship, calculate ship and circular arc
Minimum distance D:
Formula 4
As shown in Fig. 4, when the minimum distance D of certain ship speed, ship and field facility is less than or equal to early warning and report
When minimum speed and the shortest distance in alert parameter list, early warning, the warning message of Chinese or English are generated, it will by AIS system
Early warning, warning message are sent in the AIS system of threatening watercraft carrying.
Resolving mode in this step is simply easily implemented, and carries out resolving certifiable fortune in conjunction with the data being pre-stored in step 1
Efficiency is calculated, to ensure the real-time alarmed, keeps alarming result accurately credible.
Claims (5)
1. a kind of waters security alarm method based on AIS system, it is characterised in that: include the following steps,
Step 1: zone of protection being divided into equidistant grid, successively the longitude and latitude data of 4 extreme coordinates of each grid
It is stored in safeguard management table, when facility is distributed in the region that grid represents, by the position of facility, facility name, facility
Resemblance parameter is inserted in the corresponding safeguard management table of the grid, wherein facility resemblance parameter include type of facility,
Umbilical starting point coordinate, umbilical terminal point coordinate, camber line umbilical central coordinate of circle and radius of curvature, the water surface build Geometric center coordinates, water
Geometric center is built to facility edge longest distance in face, and facility is established early-warning parameters and alarm parameters, and early-warning parameters include
Early warning ship speed, early warning ship and the surface facility shortest distance and early warning ship and the underwater umbilical shortest distance, alarm parameters
Including alarm ship speed, alarm ship and the surface facility shortest distance and alarm ship and the underwater umbilical shortest distance；
Step 2: when receiving the information that onboard AIS system transmits, ship position coordinates, speed, registration are extracted from the information
MMSI number and ship title, using ship position coordinates and the mesh coordinate that is stored in safeguard management table one by one compared with, ship
When the x value and y value of position coordinates are all fallen in certain mesh coordinate region, if there is facility in the grid, it is special to read facility shape
Levy parameter；
Step 3: resolving and determine whether the distance between above-mentioned ship and peripheral facility are greater than the safe distance of setting, and is comprehensive
Decide whether early warning and alarm after ship velocity information, repeats step 2 when not needing early warning and alarm, need early warning and alarm
When, it shows the MSSI number and name of vessel of threatening watercraft, and add the MMSI number of threatening watercraft before information warning, passes through bank base
Information warning is transferred in the ship borne type AIS system of the threatening watercraft by formula AIS system；
Wherein, the facility in the step 1 is divided into surface facility, underwater straight line umbilical and underwater camber line umbilical.
2. a kind of waters security alarm method based on AIS system according to claim 1, it is characterised in that: facility class
It Bao Han facility class indication, wherein surface facility is identified as P, underwater straight line umbilical is identified as Z and underwater camber line umbilical mark
Knowing is H.
3. a kind of waters security alarm method based on AIS system according to claim 1, it is characterised in that: work as facility
When for surface facility, the method for solving ship and the distance between facility is, if ship position coordinates are (x, y), the water surface is built
Geometric center position coordinates are O (x0, y0), and the water surface builds geometric center to facility edge longest distance L, ship and surface facility
Distance presses formula 1It is calculated.
4. a kind of waters security alarm method based on AIS system according to claim 1, feature exist
In: when facility is underwater straight line umbilical, solves ship and the method for the distance between umbilical is, if ship position coordinates
Be (x1, y1) for (x, y), umbilical starting point coordinate, umbilical terminal point coordinate is (x2, y2), straight line umbilical linear equation 2,It indicating, the vertical range D of ship to the underwater straight line umbilical presses formula 3,
It is calculated.
5. a kind of waters security alarm method based on AIS system according to claim 1, it is characterised in that: work as facility
When for underwater camber line umbilical, solves ship and the method for the distance between camber line umbilical is, if ship position coordinates are (x, y),
When ship arc of approach spool cable, pass through central coordinate of circle O(xc, yc of camber line umbilical), arc radius R, ship coordinate (x,
Y), ship and arc position relationship, the distance D for calculating ship and circular arc press formula 4,
It is calculated.
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| EP3614363B1 (en) * | 2017-04-20 | 2024-03-13 | Fujitsu Limited | Dangerous spot calculation program, dangerous spot calculation method, and dangerous spot calculation device |
| CN109817023B (en) * | 2019-03-06 | 2021-05-07 | 国网福建省电力有限公司莆田供电公司 | AIS (automatic identification system) target detection method for submarine cable water area |
| CN110047331A (en) * | 2019-05-22 | 2019-07-23 | 镇江市地方海事局 | A kind of distance exam method between ship and object based on AIS |
| CN112232295B (en) * | 2020-11-09 | 2021-10-15 | 珠海大横琴科技发展有限公司 | Method and device for confirming newly-added target ship and electronic equipment |
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