CN106056978A - AIS (automatic identification system)-based water area security protection alarm method - Google Patents
AIS (automatic identification system)-based water area security protection alarm method Download PDFInfo
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- CN106056978A CN106056978A CN201610367117.2A CN201610367117A CN106056978A CN 106056978 A CN106056978 A CN 106056978A CN 201610367117 A CN201610367117 A CN 201610367117A CN 106056978 A CN106056978 A CN 106056978A
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- ship
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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)
- Radar, Positioning & Navigation (AREA)
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Abstract
The invention discloses an AIS (automatic identification system)-based water area security protection alarm method. The method includes the following steps that: a water area where facilities requiring security protection is divided into grids, a security protection management table is established according to the coordinates of the grids, the coordinates of the facilities and the characteristic parameters of facilities, and an early warning and alarm parameter setting table is established; when ship information transmitted from a ship-borne AIS system is received, various kinds of parameters are extracted from the information, and the coordinates of the facilities and the appearance characteristic parameters of the facilities in the security protection management table are retrieved by using ship position coordinates; and distances between a ship and the facilities are obtained by using different algorithms according to different facilities, and whether the distances between the ship and the facilities and the speed of the ship satisfy set early warning or alarm conditions are judged. With the AIS (automatic identification system)-based water area security protection alarm method of the invention adopted, water surface facilities and underwater facilities can be protected; and early warning or alarm conditions can be set flexibly by a user, so that early warning or alarm against dangerous ships can be carried out fast and accurately. The method has the advantages of wide application range and flexible use, can provide security protection for water area facilities and has a certain economic value.
Description
Technical field
The present invention relates to one and automatically identify system based on AIS (Automatic Identification System) boats and ships
The waters security alarm method of system, is specifically related to a kind of based on AIS (Automatic Identification System) system
Waters security alarm method, belong to protection ocean, river, lake and underwater facility safety technical field of security and protection.
Background technology
In general, cloth is placed on ocean, river, the water surface in lake and underwater facility, inevitably by from water
, the most even there is ship and surface facility (such as offshore oilfield catheterostat, job platform etc.) in face navigation, the impact of operation ship
Collide, ship anchor chain damages behavior accident, the serious harm water surface and the safety of underwater facility such as underwater line.Pass through AIS
System obtains ship position, analyzes the safe distance of ship and facility, and dangerous tip information notifies operation ship in time, right
Avoid or reduce disaster having great significance.
Being the one more reliable way obtaining boat trip information currently with AIS system, AIS system is international logical
Assisting navigation equipment, Ye Shi China compulsive requirement river, the sea navigator that must configure of shipping fleet, it is possible to provide comprehensively
The various information of this ship, also are able to receive the information that other boats and ships send simultaneously.Domestic relevant unit and individual are based on AIS system
Carry out invention or innovation, and apply for Patents:
Chinese invention patent " boats and ships tables of data method for drafting based on AIS system " (CN 102855308 A) discloses one
Plant the method utilizing AIS data to draw boats and ships data in sea chart.Screen is divided into multiple unit that size is identical by this invention
Lattice, judge the most labeled position being plotted on sea chart of the AIS data cells received simultaneously.The main mesh of the method
Be the position utilizing AIS data to determine water surface ship, in order to clearly indicate the information of sea chart.Owing to oil field water can not be obtained
The positional information of face and underwater facility and the method lacking automatic alarm, it is impossible to the ship that may endanger field facility is reported
Alert.
Chinese invention patent " the 3G fishing boat anticollision terminal of a kind of integrated AIS " (CN 202563703 U) discloses one
Utilizing microprocessor acquisition ship self gps data and other ships AIS data to carry out the equipment reported to the police, this equipment is by knowing
The position between other ship and equipment, does not carries out the warning between ship, meets less than 60 horsepowers small fishing vessel anticollisions
Safety requirements.This equipment carries out early warning just with the AIS data between ship, owing to the position of water installations cannot be obtained,
Water installations can not be protected.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of security alarm method based on AIS system, and the method is to peace
The water surface in anti-region, the position of underwater facility and overall dimensions are managed, and are receiving the boat trip letter that AIS system is provided
After breath, quickly identify the facility of ship Its Adjacent Waters, use different algorithms to calculate ship and facility, ship and curved pipe
Cable, ship and the beeline of straight line umbilical, comprehensive distance and velocity conditions are reported to the police, it is to avoid ship damages the accident of facility
Occur.
For achieving the above object, the present invention is achieved in that a kind of waters based on AIS system security alarm method,
Comprise the following steps,
Step 1: zone of protection is divided into equally spaced grid, the longitude and latitude data of each 4 extreme coordinates of grid
Be sequentially stored in safeguard management table, when grid represent region in facility is distributed time, by the position of facility, facility name,
Facility resemblance parameter, inserts in the safeguard management table that this grid is corresponding, and 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, water surface building Geometric center coordinates,
Water surface building geometric center is to facility edge longest distance, and facility is set up early-warning parameters and alarm parameters, early-warning parameters bag
Include early warning ship speed, early warning ship and surface facility beeline and early warning ship and umbilical beeline under water, ginseng of reporting to the police
Number includes warning ship speed, warning ship and surface facility beeline and warning ship and umbilical beeline under water；
Step 2: when receiving the information that onboard AIS system transmits, from this information extract ship position coordinates, speed,
Registration MMSI numbering and ship title, use ship position coordinates to compare one by one with the mesh coordinate of storage in safeguard management table,
When the x value of ship position coordinates and y value all fall in certain mesh coordinate region, if this grid has facility, read outside facility
Shape characteristic parameter；
Step 3: resolve and judge whether the distance between above-mentioned ship and peripheral facility is more than the safe distance set, and
Decide whether early warning and warning after comprehensive ship velocity information, repeat step 2 when need not early warning and reporting to the police, need early warning and
During warning, the MSSI numbering of display threatening watercraft and name of vessel, and before information warning, add the MMSI numbering of threatening watercraft, pass through
Information warning is transferred in the ship borne type AIS system of this threatening watercraft by bank base formula AIS system.
Further, the facility in described step 1 is divided into surface facility, under water straight line umbilical and camber line umbilical under water.
Further, type of facility comprises facility class indication, and wherein, surface facility is designated P, under water straight line umbilical mark
Know for Z and under water camber line umbilical be designated H.
Further, when facility is surface facility, the method solving the distance between ship and facility is, if ship position
Putting coordinate for (x, y), water surface building geometric center position coordinates is O (x0, y0), and water surface building geometric center is to facility edge
Distance L, ship and surface facility distance are by formula 1Calculate.
Further, when facility is straight line umbilical under water, the method solving the distance between ship and umbilical is, if ship
Position coordinates be (x, y), umbilical starting point coordinate be (x1, y1), umbilical terminal point coordinate be (x2, y2), straight line umbilical straight line
Equation 2, (y1-y2) x+ (x2-x1) y+x1y2-x2y1=0 represents, vertical dimension D of ship to this straight line umbilical under water is by formula
3,
Calculate.
Further, when facility is camber line umbilical under water, the method solving the distance between ship and camber line umbilical is,
If ship position coordinates is (x, y), when ship arc of approach spool cable, by the central coordinate of circle O (xc, yc) of camber line umbilical, circle
Arc radius R, the coordinate (x, y) of ship, ship and arc position relation, calculate distance D of ship and circular arc by formula 4,
Calculate.
Operation principle is: first, and waters residing for protective equipment will be needed to be divided into grid, according to mesh coordinate, facility coordinate,
Facility characteristic parameter etc. sets up safeguard management table, sets up early warning simultaneously and arranges table with alarm parameters；Secondly, when receiving ship borne type
During the ship information that AIS system transmits, from information, extract the MMSI numbering of ship position coordinates, ship speed, ship registration
With ship title, use the facility coordinate in ship position coordinates retrieval safeguard management form and the resemblance parameter of facility；
Then for different facilities, use different algorithms to obtain the distance of ship and facility, and judge ship and facility distance,
Whether ship speed meets the early warning or alert if set, when the condition is satisfied, by bank base formula AIS system by threatening watercraft
MMSI numbering, ship title, information warning be sent in onboard AIS system, prompting threatening watercraft note navigation, it is to avoid damage
The water surface and underwater facility.
The invention has the beneficial effects as follows: by dividing and store zone of protection grid in advance, provide waters accurately and set
The positional information executed, it is thus achieved that can quickly identify the position of the facility near ship and facility after AIS data, and accurately calculate ship
Only with the distance of water installations.Utilize safeguard management table to filter unnecessary facility locations data easily, improve calculating
Efficiency, substantially increases the response speed of safety alarm by the location comparison of tables of data.
Accompanying drawing explanation
Fig. 1 is the implementation method flow chart of the present invention；
Fig. 2 is zone of protection grid and the facility numbering schematic diagram of the present invention；
Fig. 3 is that the safeguard management of the present invention represents intention；
Fig. 4 is that the early warning of the present invention represents intention with alarm parameters.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail:
Present invention waters based on AIS system security alarm method, zone of protection as shown in Figure 3, is divided into by step 1
Equally spaced grid, the longitude and latitude data of four vertex positions in mark net region, by the longitude and latitude data of mesh vertex coordinates
It is stored as safeguard management table Fig. 3 successively；Set up early warning and alarm parameters table Fig. 4, by the facility presetting early warning of classification and warning
Ship minimum speed and beeline.
If there being field facility in grid, inserting in Fig. 3 by field facility information as follows, formation can be according to ship
The retrieval table of facility name and positional information near position enquiring: surface facility class: facility name, facility geometric center position are sat
Mark, facility geometric center O (x0, y0) are to facility edge longest distance L；Umbilical straightway under water: umbilical title, umbilical straightway
The coordinate A (x1, y1) of two end points, B (x2, y2)；Umbilical arc under water: umbilical title, the central coordinate of circle C of umbilical arc
(xc, yc), extreme coordinates (xs, ys) and (xe, ye), radius R.
In the present invention, the parameter in safeguard management table, early warning and alarm parameters table and parameter arrangement can be according to specifically
Utilization object set, not only limitation with the present invention provided in list.
This step uses longitude and latitude data form concordance list and can obtain accurate geographical location information；Set up facility name
Title and location retrieval table store the positional information of water installations the most accurately, it is ensured that the solution accurately and efficiently of follow-up data
Calculate.
Step 2, when receiving the information that onboard AIS system transmits, from this information extract ship position coordinates, speed,
Registration MMSI numbering and ship title, use ship position coordinates to compare one by one with the mesh coordinate of storage in safeguard management table,
When the x value of ship position coordinates and y value all fall in certain mesh coordinate region, if this grid has facility, read outside facility
Shape characteristic parameter；
Above-mentioned steps 2 more specifically, when receiving the information that AIS system transmits, extracts ship position from information
Putting coordinate (x, y), ship speed and ship registration MMSI numbering, this numbering has global uniqueness.Use ship position coordinates
Compare with the mesh coordinate in safeguard management table Fig. 3, when the x value and y value identifying ship position coordinates all falls at certain mesh coordinate
Time in region, this grid numbering can be obtained, when retrieve grid has surface facility time, read in facility name, facility geometry
Heart position coordinates, facility geometric center are to facility edge longest distance；When retrieve grid has umbilical facility under water time, read
Umbilical title under water, if straightway umbilical, then reads the coordinate of two end points of straightway umbilical, if arc pipe
Cable, then read the central coordinate of circle of umbilical arc, extreme coordinates, radius, if the umbilical in grid include simultaneously straightway and
Arc, reads straightway umbilical and the relevant parameter of arc umbilical the most simultaneously.
Step 3, resolves and judges whether the distance between above-mentioned ship and peripheral facility is more than the safe distance set, and
Decide whether early warning and warning after comprehensive ship velocity information, repeat step 2 when need not early warning and reporting to the police, need early warning and
During warning, the MSSI numbering of display threatening watercraft and name of vessel, and before information warning, add the MMSI numbering of threatening watercraft, pass through
Information warning is transferred in the ship borne type AIS system of this threatening watercraft by bank base formula AIS system.
Above-mentioned steps 3 more specifically, resolves ship with ship position coordinates with facility resemblance parameter and sets
Distance between executing, the distance between ship speed, ship and facility is simultaneously less than or equal in early warning and alarm parameters table
When the early warning distance set and early warning speed, it is judged that this ship is early warning ship；If speed is less than or equal to distance simultaneously
When the alarm distance set in early warning and alarm parameters table and alarm velocity, it is judged that this ship is warning ship, now by bank
Information warning is transferred in the ship borne type AIS system of this early warning ship by base formula AIS system, reminds and has facility near this ship,
Sail out of the most as early as possible or careful driving, it is not necessary to when early warning or warning, repeat step 2.
According to the establishment type retrieved, surface facility, under water straight line umbilical, under water umbilical arc and facility locations letter
Breath, resolving ship and facility distance:
(1) ship and surface facility distance.Ship position coordinates be (x, y), the water surface building geometric center position coordinates be O
(x0, y0), water surface building geometric center is calculated by formula 1 to facility edge longest distance L, ship with surface facility distance:
(2) ship and straight line umbilical under water or the distance of umbilical straightway under water.Under water straight line umbilical or under water umbilical straight
Two extreme coordinates of line segment are (x1, y1), (x2, y2), and available linear equation formula 2 represents:
(y1-y2) x+ (x2-x1) y+x1y2-x2y1=0 formula 2
Ship position coordinates is (x, y), and vertical dimension D of ship to straight line is calculated by formula 3:
(3) distance of ship and umbilical arc under water.When ship is close to arc section sea pipe, by arc section sea pipe
Central coordinate of circle O (xc, yc), arc radius R, the coordinate (x, y) of ship, ship and arc position relation, calculate ship and circular arc
Minimum distance D:
As shown in Figure 4, it is less than or equal to early warning and report when certain ship speed, ship with the minimum distance D of field facility
When minimum speed in alert parameter list and beeline, produce Chinese or English early warning, warning message, will by AIS system
Early warning, warning message are sent in the AIS system that threatening watercraft carries.
Resolving mode in this step is the most easily implemented, and in integrating step 1, the data of pre-stored carry out resolving and can ensure fortune
Calculate efficiency, to guarantee the real-time reported to the police, make alarming result the most credible.
Claims (6)
1. waters based on an AIS system security alarm method, it is characterised in that: comprise the following steps,
Step 1: zone of protection is divided into equally spaced grid, the longitude and latitude data of each 4 extreme coordinates of grid successively
It is stored in safeguard management table, when facility being distributed in the region that grid represents, by the position of facility, facility name, facility
Resemblance parameter, inserts in the safeguard management table that this grid is corresponding, 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, water surface building Geometric center coordinates, water
Face building geometric center is to facility edge longest distance, and facility is set up early-warning parameters and alarm parameters, and early-warning parameters includes
Early warning ship speed, early warning ship and surface facility beeline and early warning ship and umbilical beeline, alarm parameters under water
Including warning ship speed, warning ship and surface facility beeline and warning ship and umbilical beeline under water；
Step 2: when receiving the information that onboard AIS system transmits, extracts ship position coordinates, speed, registration from this information
MMSI numbering and ship title, use ship position coordinates to compare one by one with the mesh coordinate of storage in safeguard management table, ship
When the x value of position coordinates and y value all fall in certain mesh coordinate region, if this grid has facility, read facility profile special
Levy parameter；
Step 3: resolve and judge the distance between above-mentioned ship and peripheral facility whether more than the safe distance set, and comprehensively
Decide whether early warning and warning after ship velocity information, repeat step 2 when need not early warning and reporting to the police, need early warning and warning
Time, the MSSI numbering of display threatening watercraft and name of vessel, and before information warning, add the MMSI numbering of threatening watercraft, by bank base
Information warning is transferred in the ship borne type AIS system of this threatening watercraft by formula AIS system.
A kind of waters based on AIS system the most according to claim 1 security alarm method, it is characterised in that: described step
Facility in rapid 1 is divided into surface facility, under water straight line umbilical and camber line umbilical under water.
A kind of waters based on AIS system the most according to claim 1 security alarm method, it is characterised in that: facility class
Not comprising facility class indication, wherein, surface facility is designated P, under water straight line umbilical and is designated Z and camber line umbilical mark under water
Know for H.
A kind of waters based on AIS system the most according to claim 2 security alarm method, it is characterised in that: work as facility
During for surface facility, the method solving the distance between ship and facility is, if ship position coordinates is (x, y), the water surface is built
Geometric center position coordinates is O (x0, y0), and water surface building geometric center is to facility edge longest distance L, ship and surface facility
Distance is by formula 1Calculate.
5., according to a kind of based on AIS system the waters security alarm method described in claim 2, its feature exists
In: when facility is straight line umbilical under water, the method solving the distance between ship and umbilical is, if ship position coordinates
For (x, y), umbilical starting point coordinate be (x1, y1), umbilical terminal point coordinate be (x2, y2), straight line umbilical linear equation 2, (y1-
Y2) x+ (x2-x1) y+x1y2-x2y1=0 represents, vertical dimension D of ship to this straight line umbilical under water by formula 3,
Calculate.
A kind of waters based on AIS system the most according to claim 2 security alarm method, it is characterised in that: work as facility
During for camber line umbilical under water, the method solving the distance between ship and camber line umbilical is, if ship position coordinates is (x, y),
When ship arc of approach spool cable, by the central coordinate of circle O (xc, yc) of camber line umbilical, arc radius R, ship coordinate (x,
Y), ship and arc position relation, calculate distance D of ship and circular arc by formula 4,
Calculate.
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