KR20120117445A - Method and system for network creation for ship monitoring - Google Patents

Abstract

PURPOSE: A network creating method for ship monitoring and a system thereof are provided to minimize network facility construction cost of land while monitoring ship information of a wide range region consisting of a plurality of cells. CONSTITUTION: A ship monitoring system(100) comprises an external interface part(110), a VHF(Very High Frequency) information processor(120), a ship information controller(130), and a database(140). The external interface part grasps the location of a ship in which the ship monitoring system is loaded through a GPS(Global Positioning System). The external interface part collects individual ship information included in a cell in which the ship is located through a ship automatic identification system or radar. The VHF information processor collects a plurality of ship information from the ship monitoring system which is loaded in other chip through VHF communications. The database stores the individual ship information and the plurality of ship information. The ship information controller comprises the cell-based region composition information. The ship information controller periodically transmits the ship information saved in the database to a ship of an adjacent cell when the ship is located on a reiteration region between cells. [Reference numerals] (110) External interface part; (113) Radar; (120) VHF information processor; (121) VHF receiving module; (122) VHF transmission module; (130) Ship information controller; (140) Database

Description

METHOD AND SYSTEM FOR NETWORK CREATION FOR SHIP MONITORING}

The present invention relates to a method and system for generating a network for ship monitoring.

In general, there are ships carrying dangerous goods, such as small fishing vessels, large tankers and LNG (Liquefied Natural Gas) vessels. In order to prevent such accidents, countries around the world are installing and operating various systems related to ship operation in accordance with regulations on maritime traffic safety management.

Representatively, certain ships or land control facilities currently use radar or automatic identification system (hereinafter referred to as AIS) to detect vessels sailing around.

Radar is a system that radiates radio waves using a radio transceiver called a radar scanner and receives the reflected wave reflected by an object to display the position of the object causing the reflection on the screen.

These radars have the advantage of being able to detect most objects, depending on the size of the detection object, weather conditions, and the presence of obstacles. However, the radar uses only the detected image information, so only an estimate of the position or size of the detected object is possible. In other words, the detailed information of the ship is not known at all and it is impossible to detect when the ship is too small or the ship is located in a blind spot due to bad weather and obstacles. In order to solve this drawback, a device called AIS was developed, and recently, it is used a lot of complementary.

The AIS is installed on the ship to transmit various details including the ship's position using very high frequency (Very High Frequency, hereinafter referred to as VHF) communication, and at the same time receives the information transmitted from other ships and displays the surrounding ships on the screen. The status of is displayed.

However, AIS is mandatory only for ships of more than 300 tons engaged in international voyages, more than 500 tons of cargo ships and passenger ships engaged in domestic voyages, and is not installed for economic reasons in small and medium sized fishing vessels that operate offshore. Therefore, since small and medium sized fishing vessels do not receive real-time location information on nearby fishing vessels or merchant ships, and ships equipped with AIS do not receive location information on small and medium sized fishing vessels, they are equipped with mutual fishing vessels or fishing vessels and AIS. There is a problem that a marine ship collision accident with a ship frequently occurs.

On the other hand, there is a growing demand for ship information outside the scope for security and surveillance purposes in government maritime control facilities, marine vessels and warships, and general commercial ships. As a result, methods for transmitting the same functions as AIS using satellites and methods for creating a separate AIS control facility on land and sharing them on a network were developed. However, in the case of a system using a satellite, there are problems such as the price of satellite equipment and satellite communication costs, and the installation of a separate land control facility also has a problem of network construction cost. In addition, the above two systems have a problem that can use a paid communication system such as satellite communication in order to utilize these information in the ship as a function specific to the land.

An embodiment of the present invention is to provide a method and system for creating a network for vessel monitoring to manage the information of the vessels sailing around in the vessel or on land control facilities.

According to an aspect of the present invention, in the vessel monitoring system for creating a network through a cell-based regional configuration, the position of the own ship equipped with the vessel monitoring system via a GPS (Global Positioning System), and the vessel automatic identification device And an external interface unit for collecting individual vessel information included in a cell in which a ship is located through at least one of radars. Ultra-high frequency information processing unit for collecting a plurality of vessel information located in the other cell from the vessel monitoring system mounted on the other vessel through a very high frequency (Very High Frequency) communication; A database for storing the individual vessel information and the plurality of vessel information; And a ship information controller having the cell-based regional configuration information and transmitting ship information stored in the database to ships of adjacent cells periodically through the microwave communication when the position of the own ship is located in an overlap region between a plurality of cells. A surveillance system is provided.

The vessel information controller may transmit vessel information of a cell in which the own ship is located and ship information of the other cell in differential periods according to cell distances based on the position of the own ship.

The ship information controller may include: an information receiving module configured to analyze valid strings of individual ship information collected through the external interface unit to generate valid ship information including ship position information and cell identification information; An information transmitting module periodically requesting the vessel information stored in the database and transferring the vessel information to the microwave information processing unit when the position of the own ship is located in an overlapping region and is given a relay role; A data management module that collects and stores ship information of each cell generated by the information receiving module in the database and retrieves the ship information from the database according to a request of the information transmitting module; A display module for generating an electronic chart based on map information, cell region configuration information, and ship information stored in the database; And a control module for acquiring a relay role for exchanging a sequence number according to the entry time with ships existing in the overlap region and transmitting the vessel information according to the sequence number when the position of the own ship enters the overlap region. can do.

In addition, the relay role may transmit the vessel information in any one of a forward direction, a reverse direction, and a bidirectional direction based on an overlapping region where the own ship is located.

The information receiving module may generate the vessel information based on a vessel ID or vessel position information, and the vessel information includes vessel ID, cell ID, vessel type, position information, traveling direction, traveling speed, and measurement time ( Reception time).

In addition, the information receiving module may calculate the heading direction and heading speed using previous vessel position information and measurement time for the same vessel ID when generating the vessel information.

In addition, the information receiving module, when collecting the position information for one vessel through the automatic vessel identification device and radar, respectively, if the two position information is within a certain range may be determined to be the same vessel.

The control module may return the relay role when the position of the own ship is out of the overlapped area.

Meanwhile, according to an aspect of the present invention, in the method for generating a ship monitoring network of a ship monitoring system mounted on a ship, a) dividing a coastal area into a plurality of cells including an overlapping area between cells to form a cell-based area; ; b) the vessel monitoring system detects the position of the vessel through GPS (Global Positioning System) and collects individual vessel information of the cell where the vessel is located through at least one of the vessel automatic identification device and radar provided in the vessel; C) collecting a plurality of vessel information located in other cells from a vessel monitoring system mounted on another vessel through very high frequency communication; d) collecting the individual vessel information collected and the plurality of vessel information and storing them in a storage space of the vessel monitoring system; And e) periodically transmitting the stored vessel information to the vessel of the adjacent cell through the microwave communication when the position of the own vessel is located in the overlapping region according to the cell-based region configuration information. Can provide.

In addition, the step e) may include the step of determining whether there is a ship monitoring system mounted on the other ship in the overlapping area, and if not present, may be given a relay role of transmitting the ship information.

In addition, the step e), e-1) if there is a ship monitoring system mounted on the other ship in the overlapping area step of assigning the sequence number according to the overlapping area entry time; And e-2) receiving the relay role according to the sequence number when the higher order system that plays the relay role leaves the overlapping region.

Also, the step e-1) may include receiving role identification information including an overlapping area ID, sequence number, and role information from a ship monitoring system mounted on at least one other ship already existing in the overlapping area; Assigning itself to the role identification information by adding 1 to the sequence; And responding the role identification information including the assigned sequence number to the vessel monitoring system mounted on the other vessel and waiting for a relay role.

Also, in step e-2), ship information of the cell where the own ship is located and ship information of the other cell may be transmitted at different periods according to the distance of each cell.

In addition, step e-2) may immediately transmit the ship information including safety information regardless of the distance when a dangerous or emergency situation of the ship occurs in a particular cell.

In addition, after step e-2), the method may further include the step of returning the assigned relay role when the position of the own ship leaves the overlapping area.

Embodiments of the present invention can create a network that can monitor the ship information of a wide area consisting of a plurality of cells while minimizing the cost of building network facilities on land.

In addition, the vessel monitoring area can be extended to other cell areas in the case of a ship equipped with the existing AIS by sharing the ship information in a plurality of cell areas, and in the case of a small ship equipped with radar, the AIS is equipped only by VHF communication. The details of the ship can be identified.

In addition, it is possible to prevent the collision of marine vessels with each other or between vessels and vessels equipped with AIS.

1 illustrates a cell-based regional configuration according to an embodiment of the present invention.
2 is a block diagram showing a ship monitoring system according to an embodiment of the present invention.
3 is a block diagram schematically showing a detailed configuration of a ship information controller according to an embodiment of the present invention.
4 illustrates a cell structure sequentially arranged according to an embodiment of the present invention.
5 is a flowchart illustrating a network generation method for vessel monitoring according to an embodiment of the present invention.
6 is a conceptual diagram schematically showing the structure of a ship network according to an embodiment of the present invention.
7 is a flowchart illustrating a relay role granting method in an overlapping area according to an exemplary embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. Also, the terms " part, "" module," and " module ", etc. in the specification mean a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software have.

Throughout this specification, regions and regions are used to mean land as well as sea areas.

Now, a ship monitoring system and method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a cell-based regional configuration according to an embodiment of the present invention.

Referring to FIG. 1, in order to create a network for vessel monitoring according to an embodiment of the present invention, as shown in FIG. 1, a specific country or a wide area is first divided into a plurality of cell units. The cell is generally composed of a range of cells capable of very high frequency (VHF) communication, which is commonly used in all ships, and has a unique identification and defines an area in which adjacent cells overlap each other.

In the following description, the cell is assumed to have a size of 60 Km * 60 Km in consideration of stable communication between ships in the same cell area when considering that the maximum reach of the VHF communication is about 100 Km, but is not limited thereto.

Hereinafter, the configuration of the ship monitoring system 100 according to an embodiment of the present invention through FIG. 2 will be described in detail.

Prior to the description, the ship monitoring system 100 according to the embodiment of the present invention may be installed in a ship having mobility or a land / sea stationary fixture. Such a ship monitoring system 100 is a vessel information (individual vessel information) collected in the cell area to which they belong in the overlap region where adjacent cells overlap each other and vessel information (multiple vessel information of the cell area unit) received from another cell region And transmit the stored ship information to neighboring ships by varying the transmission period for each cell unit distance and serve as a relay station.

Hereinafter, in describing a method for generating a network for ship monitoring according to an embodiment of the present invention, the ship monitoring system 100 will be described based mainly on being mounted on a ship, but is not limited thereto.

2 is a block diagram showing a ship monitoring system according to an embodiment of the present invention.

Referring to FIG. 2, the vessel monitoring system 100 according to an exemplary embodiment of the present invention includes an external interface unit 110, a VHF information processor 120, a vessel information controller 130, and a database 140. .

The external interface unit 110 is connected to the GPS (Global Positioning System) 111, the AIS 112, and the radar 113, and own ship (hereinafter, the ship refers to the ship in which the ship monitoring system 100 is installed). The serial receiver for collecting the position information and the position information of the other ship to transfer the information collected from each module to the ship information controller 130.

Ship monitoring system 100 according to an embodiment of the present invention, the first cell and the second cell to provide information about the first cell area vessels in the overlapping region where the adjacent cells (for example, the first cell and the second cell) overlap each other Since it is intended to be shared with local vessels, information about nearby vessels should be collected.

The external interface unit 110 grasps the current position of the own ship from the GPS 111. At this time, to grasp the position of the own ship is to determine whether the vessel monitoring system 100 is located in the overlapping region of the adjacent cell.

The external interface unit 110 collects AIS information transmitted from the AIS 112 and the surrounding vessel equipped with the AIS. The AIS information includes detailed information such as ship identification information as well as ship position information.

The external interface unit 110 collects the position information of the surrounding vessel detected through the radar automatic tracking (ARPA) function from the radar 113.

The external interface 110 follows the NMEA0183 protocol, which is a navigation device interface standard, and generally enables communication at a speed of 4800bps, but enables high-speed communication of 38400bps for receiving AIS information according to an embodiment of the present invention. In addition, the external interface unit 110 may communicate with the ship information controller 130 in a manner such as TCP / IP.

The VHF information processing unit 120 receives a plurality of vessel information received from the vessel monitoring system 100 '(hereinafter referred to as the same system) mounted on another vessel through the VHF receiving module 121, vessel information controller 130 Convert the data into a format that can be processed and pass it on.

In addition, the VHF information processing unit 120 converts a plurality of ship information transmitted from the ship information controller 130 through the VHF transmission module 122 into a VHF communication signal and transmits it to nearby vessels. At this time, the transmission and reception using the VHF signal is widely used not only for the ship monitoring system 100 and the AIS equipped ship, but also for the non-mounted general small ship, so that the neighboring vessel information can be shared with the non-mounted small ship. For sake.

The ship information controller 130 has the cell-based regional configuration information and determines whether the position of the own ship received from the external interface unit 110 is located in the overlapped region between cells in the cell-based regional configuration, It is determined whether the role as a relay station depends on the priority of entering the overlapping area. Here, the description of the role determination as the relay station will be described in detail later.

The vessel information controller 130 collects the surrounding vessel information received from the external interface unit 110 and vessel information received from the same system of another vessel through the VHF receiving module 121 and stores the vessel information in the database 140.

In addition, the ship information controller 130 periodically transmits ship information stored in a database through the VHF transmission module 122 when serving as the relay station. At this time, the ship information controller 130 transmits the ship information of the cell area to which it belongs is very important to the surrounding vessels in the same cell area in a relatively short period. In addition, since ship information of a cell area far from the cell area to which it belongs is not important, it can be differentially transmitted with increasing period according to the distance.

The database 140 stores various programs and data for generating a ship monitoring network according to an embodiment of the present invention, and stores all data generated according to the operation of the ship monitoring system 100.

On the other hand, Figure 3 is a block diagram schematically showing the detailed configuration of the ship information controller according to an embodiment of the present invention.

Referring to FIG. 3, the ship information controller 130 according to an embodiment of the present invention includes an information receiving module 131, an information transmitting module 132, a data management module 133, a display module 134, and a control. Module 135.

The information receiving module 131 analyzes individual vessel information received from the external interface unit 110 and a plurality of vessel information received from the same system of another vessel through the VHF receiving module 121. In addition, ship information is generated based on MMSI (Maritime Mobile Service Identify, hereinafter referred to as ship ID) or ship location information, which is a ship identification symbol assigned to each unique ship. In this case, the generated vessel information includes at least one of a vessel ID, a cell ID, a vessel type, position information, a traveling direction, a traveling speed, and a measurement time (reception time). However, in the case of the small ship information collected through the radar 113, since the MMSI cannot be grasped, the ship ID may be treated as an unidentified ship to generate ship information. This is because the ship ID is for filtering duplicate data, and it is not the purpose of the identification information to identify where the ship is located in the cell.

The information receiving module 131 may generate information of the target ship by changing a simple string related to ship information received through the external interface unit 110 into valid information. In general, navigational equipment is a standard defined in IEC 61162-1 and transmits the information of the equipment as a string as in the example below.

Example) GPS string example, $-GLL, 3454.52, N, 01256.45, E, 013456.21, A, A * 3C

Therefore, the strings coming from most devices can be identified by the comma (,) symbol. However, in the case of AIS equipment, since the encrypted string is transmitted, the vessel information can be confirmed through the decryption algorithm of the AIS equipment.

Here, the information receiving module 131 may receive the location information of one ship at the same time through the AIS 112 and the radar 113, respectively. In this case, in order to prevent duplicate data on the same ship, comparing the ship position received from each module, if it is within a certain range (e.g. distance within 200m, speed difference less than 10%), one side information can be ignored. have.

In addition, the information receiving module 131 when receiving a plurality of vessel information from the same system installed in other vessels other than the information received through the AIS 112 or the radar 113, vessel ID, vessel position for minimizing the information Only information limited to information and measurement time and safety information can be received. At this time, the data management module 133 may calculate and store the traveling speed and the traveling direction by using the previous vessel position and the measurement time of the same vessel ID.

The information transmission module 132 operates when the ship monitoring system 100 is given a role as a relay station, and transmits a plurality of ship information stored in the database 150 to the VHF information processing unit 120 to transmit periodically. Do it.

At this time, since the information transmission module 132 transmits a plurality of vessel information in consideration of the limitation of the data transmission amount using the VHF communication, the transmission information is minimized to include only the vessel ID and position information, measurement / transmission time and safety information. can do. As described above, when the information transmitting module 132 transmits only limited information, approximately 200 ship information may be transmitted per second.

However, the safety information is information indicating that there is a very crowded or dangerous or urgent situation (e.g. distress ship rescue situation, pollution, military operation, etc.) due to the presence of ports / ports in a specific cell area. The information transmitting module 132 may immediately notify ship safety information by transmitting ship information regardless of distance.

The data management module 133 collects and stores various vessel information of each cell area generated by the information receiving module 131 in the database 140 and performs a data management function for loading as necessary.

If there is the same ship information in the database 140 using the ship ID / location information, the data management module 133 compares the measurement time and updates the position information and the measurement time of the ship with the recently measured data. On the other hand, when there is new ship information that is not registered in the database 140, it is newly added to the database 140.

Meanwhile, the data management module 133 may divide ship information added to the database into dynamic information and static information.

The dynamic information of the vessel is information that changes according to the vessel's movement such as vessel position, measurement time, traveling direction, traveling speed, course (path), and stores and stores a cell ID according to the current vessel position.

The static information is information of a ship unique to a ship name, a ship unique number (International Maritime Organization, IMO), ship type information, and the like. Both of these information can be managed using the ship identification symbol MMSI.

The display module 134 generates an electronic chart based on the map information, the cell region configuration information, and the ship information stored in the database 150 to display the position of the own ship and the position and navigation information of other ships.

The control module 135 controls the overall operation of the ship monitoring system 100 according to an embodiment of the present invention.

4 illustrates a cell structure sequentially arranged according to an embodiment of the present invention.

Referring to FIG. 4, assuming that a specific region according to an embodiment of the present invention is divided into five cells, cell IDs of A, B, C, D, and E and cell IDs of AB, BC, CD, and DE are overlapped. It will include.

The control module 135 has each cell ID, an overlapping ID, and its positional information.

When the position of the own ship enters the overlapping area, the control module 135 checks whether there is a ship equipped with the same system in the overlapping area, and if it does not exist, the control module 135 transmits a plurality of ship information to the surrounding ship. Do this.

On the other hand, if there are a plurality of ships equipped with the ship monitoring system of the present invention in the overlapping region entered, the control module 135 exchanges the order according to the entry time with the ships existing in the overlapping region first in order. The vessel in the higher sequence entered enters the same role as the relay station.

Again, in FIG. 4, a plurality of ship information transmission directions may be classified into a forward direction for delivering in the order of Cell A, Cell B, and Cell C and a reverse direction for transferring in the order of Cell E, Cell D, and Cell C.

The control module 135 of the ship monitoring system 100 transmits the information collected in the cell A area to the cell B area if the charity exists in the overlap area of the cell AB and is given a relay role according to the entry sequence number. On the contrary, it plays a role of relaying information of Cell B, C, D, and E collected from Cell B region to cell A region in reverse direction.

At this time, basically, one vessel monitoring system 100 may play a role of transmitting ship information in both directions, and two vessel monitoring systems 100 existing in the same overlapping area serve as forward transmission and reverse transmission. You can also do this separately.

Meanwhile, a method for generating a network for ship monitoring according to an embodiment of the present invention will be described with reference to FIGS. 5 to 7 based on the configuration of the ship monitoring system 100 described above.

5 is a flowchart illustrating a network generation method for vessel monitoring according to an embodiment of the present invention.

6 is a conceptual diagram schematically showing the structure of a ship network according to an embodiment of the present invention.

Referring to FIG. 5, the vessel monitoring system 100 according to an exemplary embodiment of the present invention may include cell identification information, overlapping region information, and location information mounted on a vessel and dividing a specific region into a plurality of cell units. It is assumed that it has not entered the overlapping region between cells.

The vessel monitoring system 100 detects its position through the GPS 111 and collects individual vessel information through the AIS 112 and the radar 113 (S101). The individual vessel information may include at least one of a vessel ID, position information, a measurement time, and a reception time received from a surrounding ship.

In addition, the vessel monitoring system 100 collects a plurality of vessel information from the same system mounted on the other vessel (S102). The plurality of ship information includes not only a plurality of ship information of the cell region where the charity is located, but also a plurality of ship information of the tassel region.

For example, in FIG. 6, vessel 1 may collect individual vessel information from vessel 2 and may collect a plurality of vessel information for cells A, B, and C from vessel 3 performing a relay role.

The vessel monitoring system 100 collects the collected individual vessel information and a plurality of vessel information and stores them in the database 140 (S103), and displays the stored vessel information on the electronic chart reflecting the map information and the cell region configuration information ( S104).

The ship monitoring system 100 performs steps S101 to S104 as an internal ship monitoring function, regardless of the relay role. This has the advantage that can be confirmed through the electronic chart by grasping the ship information of the cell region in the far distance as well as the cell region where the charity is located compared to the prior art.

Thereafter, the ship monitoring system 100 determines the position of the own ship through the GPS 111, and when the position of the own ship enters the overlapping area (S105; Yes), it is determined whether the own ship is the target of the relay role according to the entry order. (S106). At this time, if it is determined that the relay role is not subject to the relay role, it performs only the internal vessel monitoring function described above.

On the other hand, the ship monitoring system 100 transmits a plurality of ship information stored in the database 150 in a sequential cycle according to the cell distance when the determination result is given a relay role (S107). At this time, the ship monitoring system 100 may transmit the ship information in both directions, forward or reverse depending on its role.

For example, referring back to FIG. 4, when the vessel monitoring system 100 is responsible for two-way ship information transmission, if cell B is taken as an example, information that a vessel located in cell B wants to know is information of adjacent cells A and C. Is more important than the information of Cell D and Cell E, and needs to be updated quickly. On the other hand, the information of Cell D and Cell E may be updated slowly because it is relatively less important.

Therefore, when the ship monitoring system 100 transmits the ship information of each cell stored in the database, the ship information of the region (cell B) to which it currently belongs is divided and transmitted over two seconds, and the cell that is crossed one by one in cell B in both directions. Ship information of A and C is 5 seconds, and cell D is 10 seconds and the like, and can be transmitted with a transmission period differentially depending on the cell distance.

On the other hand, when the ship monitoring system 100 is responsible for forward transmission in the CD overlap region, assuming that 100 vessels exist in each cell, the ship information is transmitted to the cell D every second as follows, and according to the remaining cell distances. The transmission period can be differentially transmitted.

Cell D 100 (large) / 1 (second) = 100 (large)

Cell C 100 (large) / 2 (seconds) = 50 (large)

Cell B 100 (large) / 5 (seconds) = 20 (large)

Cell A 100 (large) / 10 (seconds) = 10 (large)

Then, if the ship monitoring system 100 moves out of the overlapping area (S108; Yes), return the assigned relay role, and performs only the internal vessel monitoring function again (S109).

On the other hand, Figure 7 is a flow chart illustrating a relay role assignment method in an overlapping area according to an embodiment of the present invention.

Referring to FIG. 7, a relay role granting method in an overlapping area according to an exemplary embodiment of the present invention is a detailed step of steps S105 and S106 of FIG. 5.

When the ship monitoring system 100 checks the position of the own ship through the GPS 111 and confirms that the position of the own ship enters the overlapping area (S201), it is checked whether the same system mounted on the other ship exists in the overlapping area. do. At this time, if the same system does not exist, a relay role is given and performed (S202; No).

On the other hand, if the same system exists, the ship monitoring system 100 receives the overlapping region ID, sequence number, and role information (including any one of the two directions, the forward direction, the reverse direction, and the role waiting) from at least one same system that already exists in the overlapping region. It receives the role identification information that includes (S203). In this case, the same systems mounted on the other vessels are similarly transmitting the role identification information because they know that the own ship enters the corresponding overlapping region through the vessel information managed by them.

When the ship monitoring system 100 receives role identification information from the same system that already exists in the overlapped area, the ship monitoring system 100 adds 1 to the sequence number and assigns it to itself (S204), and assigns its role identification information including the assigned sequence number to the same system. And transmits a response (S205). Then, the ship monitoring system 100 waits for a relay role in accordance with the order (S206).

Then, when the ship monitoring system 100 receives the information that the same system having a higher sequence number is out of the overlapping area, it checks whether the sequence number is the role target sequence number and maintains the relay role wait if not the role sequence number (S208, no).

On the other hand, if the ship monitoring system 100 has its own sequence number of the role target sequence (S208; Yes), it is given a relay role that was performed by the separated higher sequence number system transfers the ship information to any one of the two directions, forward and reverse It performs the role of (S209).

In the relay role assigning method described above with reference to FIG. 7, although not shown in FIG. 7, when the charity is out of the overlapping area, the process proceeds to step S108 of FIG. It will be apparent to those skilled in the art in view of the technical idea of the present invention that the relay role can be returned.

As described above, according to an embodiment of the present invention, a ship monitoring system 100 mounted on a ship relays ship information between cells in an overlapping area of a divided cell area, thereby minimizing the cost of building network facilities on the land, and having a wide range of cells. There is an effect that can create a network for monitoring the vessel that can monitor the vessel in the area.

In addition, vessels equipped with the existing AIS can share the ship information in multiple cell areas, and the vessel monitoring area can be extended to other cell areas.In the case of small ships equipped with radar, AIS can be achieved by VHF communication alone. There is an advantage that can grasp the details of the ship equipped with.

Therefore, there is an effect that can prevent the collision of the marine vessels between the fishing vessels or the vessel equipped with the fishing vessels and AIS.

Although the embodiments of the present invention have been described above, the present invention is not limited only to the above embodiments, and various other changes are possible.

For example, the above-described embodiment of the present invention has been described assuming that the ship monitoring system 100 is mounted on a vessel, but is not limited thereto, and the ship monitoring system 100 fixed to a land area of a corresponding area for maritime monitoring purposes by the government side is provided. ), Or the ship monitoring system 100 can be installed and operated on the buoyant at sea.

Therefore, ship traffic can cover a relatively small cell area, and when the Ministry of Land, Transport and Maritime Affairs, Navy, Fishing Control Center, Shipping Operators, etc. observe a wide range of sea areas, the observation server can receive ship information for all cell areas. There is an advantage to that.

The embodiments of the present invention are not limited to the above-described apparatuses and / or methods, but may be implemented through a program for realizing functions corresponding to the configuration of the embodiment of the present invention, a recording medium on which the program is recorded And such an embodiment can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: ship surveillance system
110: external interface unit
120: VHF information processing unit
130: ship information controller
131: information receiving module
132: information transmission module
133: Data Management Module
134: display module
135: control module
140: database

Claims (15)

In the ship monitoring system to create a network through the cell-based regional configuration,
GPS (Global Positioning System) identifies the location of the ship equipped with the ship monitoring system and collects individual ship information contained in the cell where the ship is located through one or more of the ship's automatic identification system and radar. An external interface unit;
An ultra-high frequency information processing unit for collecting a plurality of vessel information from a ship monitoring system mounted on another vessel through ultra high frequency communication;
A database for storing the individual vessel information and the plurality of vessel information; And
Ship information controller having the cell-based regional configuration information, the ship information stored in the database periodically to the vessel of the adjacent cell through the microwave communication when the position of the own ship is located in the overlap region between a plurality of cells
Ship monitoring system comprising a. The method of claim 1,
The vessel information controller,
And ship information of the cell in which the own ship is located and ship information of another cell in differential cycles according to the distance of each cell based on the position of the own ship. The method according to claim 1 or 2,
The vessel information controller,
An information receiving module for analyzing valid strings of individual vessel information collected through the external interface unit to generate valid vessel information including vessel position information and cell identification information;
An information transmitting module periodically requesting the vessel information stored in the database and transferring the vessel information to the microwave information processing unit when the position of the own ship is located in an overlapping region and is given a relay role;
A data management module for storing ship information of each cell generated by the information receiving module in the database and retrieving the ship information from the database at the request of the information transmitting module;
A display module for generating an electronic chart based on map information, cell region configuration information, and ship information stored in the database; And
Control module receiving a role of relaying the sequence number according to the entry time with the ships existing in the overlapping region when the position of the own ship enters the overlapping region, and transmits the ship information according to the sequence
Ship monitoring system comprising a. The method of claim 3, wherein
The relay role is,
Ship monitoring system, characterized in that for transmitting the ship information in any one of the forward, reverse and bidirectional direction based on the overlapping region where the own ship is located. The method of claim 3, wherein
The information receiving module,
The ship information is generated based on a ship ID or a ship's position information, and the ship information includes at least one of a ship ID, a cell ID, a ship type, a position information, a traveling direction, a traveling speed, and a measurement time (reception time). Ship monitoring system, characterized in that. The method of claim 5, wherein
The information receiving module,
The ship monitoring system, characterized in that for calculating the heading direction and speed using the previous vessel position information and measurement time for the same vessel ID when generating the vessel information. The method of claim 5, wherein
The information receiving module,
In the case of collecting the position information of a single vessel through the automatic vessel identification device and radar, respectively, if the two position information is within a certain range it is determined that the ship monitoring system. The method of claim 3, wherein
The control module,
The ship monitoring system, characterized in that the relay role is returned when the position of the own ship is out of the overlapping area. In the ship monitoring network generation method of the ship monitoring system mounted on a ship,
a) forming a cell-based area by dividing the coastal area into a plurality of cells including overlapping areas between cells;
b) The vessel monitoring system identifies the position of the vessel through GPS (Global Positioning System), and the individual of the cell where the vessel is located through at least one of an automatic identification system and a radar provided on the vessel. Collecting ship information;
c) collecting a plurality of vessel information from a vessel monitoring system mounted on another vessel through very high frequency communication;
d) collecting the individual vessel information collected and the plurality of vessel information and storing them in a storage space of the vessel monitoring system; And
e) periodically transmitting the stored vessel information to the vessel of the adjacent cell through the microwave communication when the position of the own vessel is located in the overlapping region according to the cell-based region configuration information;
Ship monitoring network generation method comprising a. The method of claim 9,
Step e),
Determining whether there is a ship monitoring system mounted on the other ship in the overlapped area, and if not present, receiving a relay role for transmitting the ship information.
Ship monitoring network generation method comprising a. The method of claim 9,
Step e),
e-1) if a ship monitoring system mounted on another ship exists in the overlapped area, assigning a sequence number according to the overlapped area entry time; And
e-2) if the higher order system that plays the relay role leaves the overlapping area, receiving the relay role according to the order
Ship monitoring network generation method comprising a. The method of claim 11,
Step e-1),
Receiving role identification information including an overlapping region ID, sequence number, and role information from a ship monitoring system mounted on at least one other vessel already existing in the overlapping region;
Assigning itself to the role identification information by adding 1 to the sequence; And
Responding to the ship monitoring system mounted on the other ship with its role identification information including the assigned sequence number and waiting for a relay role;
Ship monitoring network generation method comprising a. The method of claim 11,
e-2) step,
The ship monitoring network generation method, characterized in that for transmitting the vessel information of the cell where the own ship is located and the vessel information of the other cell in a differential cycle according to the distance per cell. The method of claim 11,
Step e-2),
When a dangerous or emergency situation of the ship in a specific cell occurs, the ship monitoring network generation method characterized in that for immediately transmitting the ship information including the safety information regardless of the distance. The method of claim 11,
After step e-2),
And returning the assigned relay role when the position of the own ship leaves the overlapping area.

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