KR101972913B1 - AIS-based real-time ocean data providing system - Google Patents

Abstract

The present invention relates to a system for providing ocean data observed at an ocean observatory to an automatic identification system (AIS) of a ship by using an AIS communication network of the ship. The present invention has the following effects. Real-time observation information obtained in real time from observation equipment of the ocean observatory is directly processed as an ASM message suitable for the AIS network to receive the ocean data in real time from the ship having an AIS module installed thereon. In other words, the present invention has an advantage of minimizing a route and a time of the ocean data from the ocean observatory to the ship within a few seconds. In addition, the system for providing real-time ocean data based on an AIS comprises an ocean observatory and a ship.

Description

AIS based real-time marine data providing system {omitted}

The present invention relates to a system for providing marine data observed at an ocean observatory to an AIS of a ship using the ship's AIS communication network.

In order to obtain marine data from a ship 400 being sailed, marine data such as tide information, etc., which are observed using an observation device 110 such as a trench system, And then transmitted to the marine data verification organization 200 corresponding to the Korean marine survey association and then subjected to the first verification and then transmitted to the marine data distribution agency 300 corresponding to the marine surveyor to collect the collected data ) Will be distributed in an indirect manner using the Internet.

The data is transmitted to the marine data verification organization 200 by the transmission module 140 via the data collection module 120 of the marine observation station 100 and the marine data verification organization 200 transmits the marine data to the QC module 200. [ And transmits it to the marine data collection organization 300 through the transmission / reception module 220. The marine data collection organization 300 stores the received marine data in the database 310 and transmits the marine data to the marine vessel 400 by the transmission and reception module 320. The respective transmissions are performed by a satellite or a wireless network .

However, such a conventional method does not update the data in real time due to a delay in the time taken to load the database 310 of the marine data distribution organization according to the network environment in the ocean observation station 100.

Open Patent No. 10-2016-0117766 (Nov.

Problems to be solved by the present invention are as follows.

In other words, we propose a system that can transmit real-time marine data from a ship equipped with AIS module by processing real-time observation information obtained from real-time observation equipment at an ocean observatory into an ASM message suitable for AIS network directly.

In order to solve the above problems,

An ocean observatory (100) for observing and gathering marine data including tide information; And a ship 400 equipped with an AIS transmission / reception module 410. The ocean observation station 100 includes an observation device 110 including a tether system for observing the marine data, a marine data 110 observed from the observation device 110, And a marine data standardization module 600 that encodes the marine data collected from the data collection module 120 into an AIS message and transmits the data to the AIS receiving module 410 of the marine vessel 400 The data collection module 120 includes a main processing module 121 for storing the marine data observed in the observation equipment 110 in the database 121a and backing up the data in the visualization module 122, And a visualization module 122 for storing and displaying the marine data backed up by the marine data standardization module 600 in a database 122a and the marine data standardization module 600 is connected to the visualization module database 122a of the data collection module 120 A database connection module 610 for loading the stored marine data, A QC module 640 for managing the quality of marine data imported from the base connection module 610, an AIS-ASM message for calling up QC-processed marine data in the QC module 640 and encoding the marine data into an ASM message An ASM message transmission module 630 for transmitting the ASM message encoded in the AIS-ASM message encoding module 620 to the AIS transmission module 650, an ASM message transmission module 630 for receiving the ASM message received from the ASM message transmission module 630, The ASM message includes a message type 6 transmitted to a designated ship and a message type 8 transmitted to a plurality of ships in a broadcasting mode, The AIS-ASM message encoding module 620 converts the marine data collected from the database of the ocean observing station 100 into binary data by applying the allocated number of bits in a predetermined order, generates an ASM message, 400) < / RTI > Check that the format of the message in the normal decoding module 410 to and characterized by expression in ECDIS,

The QC module 640 includes a threshold value processor 641 that considers an error when consecutive data values differ by more than a predetermined value per data interval, a difference between the time at which the data is stored in the database and the observation time of the data is constant And a delay time processing unit (642) for dealing with an error when the time is longer than the predetermined time,

The AIS transmission / reception module 650 is composed of a GPS antenna 651 and a VHF antenna 652, and provides a real-time marine data providing system based on the AIS.

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The present invention has the following effects.

In other words, real-time observation information obtained from real-time observation equipment at an ocean observatory can be directly processed into an ASM message suitable for the AIS network to receive real-time marine data from a ship equipped with the AIS module.

In other words, it has the advantage of minimizing the time and the route of the marine data from the ocean observatory to the ship within a few seconds.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a route through which marine data observed at a conventional ocean observing station are provided to a ship.
FIG. 2 is a block diagram showing a route through which marine data is provided as a vessel according to the present invention. FIG.
3 is a block diagram showing a detailed configuration of the present invention;
4 is a diagram illustrating a process of generating an ASM message;
5 is a flowchart illustrating a process in which an ASM message is generated by a sea surface information standardization module.
6 shows a result of decoding an ASM message;
7 is a view showing an example screen of ECDIS in which marine data are displayed in real time by the AIS of a ship;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the scope of the present invention should be understood from the description of the claims. Further, the description of known technology which obscures the gist of the present invention is omitted.

The AIS-based real-time marine data providing system of the present invention has a basic configuration of a marine observation station 100 equipped with a marine data standardization module 600 and a ship 400 equipped with an AIS transmission / reception module 410 as shown in FIG. For ease of understanding, the existing configuration, which is not directly related to the present invention in FIG. 2, is indicated by a dotted line.

An ocean observatory (100) is responsible for observing and collecting ocean data (sea level information), for example, a tidal observatory. The observed ocean data may include tide information, water temperature, salinity, air temperature, air pressure, wind direction, and wind velocity.

The AIS (Automatic Identification System) is an automatic identification device using a VHF (VHF). The AIS (Automatic Identification System) is a device that identifies the name, location, Speed, and destination, and displays the transmitted data on the ECDIS (Electronic Chart Display and Information System) and on the radar screen.

In addition to the marine data standardization module 600, the observation device 110, the data collection module 120 and the transmission module 140 are basically constructed in the ocean observation station 100, while the transmission module 140 is configured in the data collection module 120 And transmits the collected marine data to the marine data verification organization 200, which is independent of the present invention.

The observation equipment 110 includes a tachometer and is a device for observing the marine data in real time. The equipment 110 may include a tachometer, a water temperature meter, a salt meter, a barometer, and the like. .

Table 1 below shows examples of the observation items measured by the observation equipment 110 and the respective units and minimum units.

Observation item Observation standard Observation unit Minimum unit atmospheric pressure Hecto pascal (hPa) 0.1 Temperatures Celsius (℃) 0.1 salt PSU Automatic: 0.01, Manual: 0.1 condolence Centimeter (cm) One Water temperature Celsius (℃) 0.1 Wind direction Degrees (°) One Wind speed (maximum, average) Meters per second (m / s) 0.1

The data collection module 120 collects the marine data observed in the observation equipment 110 in real time, and transmits the collected data to the transmission module 140. As shown in FIG. 3, the visualization module 122 may be added with the main processing module 121 as a basic configuration. On the other hand, in order to provide real-time information, it is preferable that the marine data is observed in a minimum time unit such as one minute unit in the observation equipment 110, collected in the data collection module 120 and loaded in the database.

The main processing module 121 stores the marine data observed in the observation equipment 110 in the database 121a and the marine data stored in the database 121a of the main processing module when the visualization module 122 is added. And transfers the data to the visualization module 122.

The visualization module 122 stores the marine data backed up by the main processing module 121 in the database 122a, and visualizes the data to provide the data to the user. The main processing module 121 and the backup visualization module 122 are separated from each other to store the marine data for the purpose of data processing and storage stability.

The marine data standardization module 600 encodes the marine data collected in the data collection module 120 in real time into the AIS message and transmits the same to the AIS receiving module 410 of the ship 400. As shown in FIG. 3, Module 610, an AIS-ASM message encoding module 620, an ASM message transmission module 630, a QC module 640, and an AIS transmission / reception module 650.

The database connection module 610 is connected to the database of the data collection module 120 to retrieve the stored marine data and preferably includes a visualization module 122 of the data collection module 120 ) Database 122a.

The QC module 640 is responsible for managing (QC-processing) the quality of the marine data imported from the database connection module 610. More specifically, the QC module 640 processes the values of the consecutive data by the threshold value processor 641, Or when the difference between the time at which the data is stored in the database and the observation time of the data by the delay time processing unit 642 is equal to or longer than a predetermined time (for example, 24 hours), it is regarded as an error Or the like. Since the marine observation data may include equipment error, observer error, data transmission error, input error, etc., it is preferable to perform QC processing by the QC module 640 in order to satisfy the quality level required for analysis.

The AIS-ASM message encoding module 620 encodes the marine data loaded from the database connection module 610 or the marine data processed by the QC module 640 into the ASM message when the QC module 640 is added And details of the ASM message encoding process will be described later.

The ASM message transmission module 630 transmits the ASM message encoded in the AIS-ASM message encoding module 620 to the AIS transmission module 650 and specifies a Maritime Mobile Service Identity (MMSI) for the transmission AIS , And sets the transmission period and the message type to transmit to the AIS transmission / reception module 650. The transmission period can be set in a time interval of 1 minute to 60 minutes. The message type is set to ASM 6 type when a message is transmitted to a specified ship, and ASM 8 type when a message is transmitted to an unspecified number of ships.

The AIS transmission / reception module 650 transmits the ASM message received from the ASM message transmission module 630 through the AIS network, and includes a GPS antenna 651 and a VHF antenna 652.

The AIS-ASM message encoding process will be described in detail as follows (see FIG. 5).

First, AIS-ASM is a message standard that can transmit binary data through AIS. It transmits binary data through AIS message identifier (message type 6 or 8).

The AIS signal is classified according to the broadcasting type. Message type 6 is a method for transmitting a message to a designated vessel. Message type 8 is a method for transmitting a message to a plurality of vessels in broadcasting mode. Therefore, it is necessary to produce AIS-ASM according to message type 8 or message type 6 as needed. In order to produce such a message, it is necessary to accurately assign the number of allocated bits according to each attribute information, thereby enabling normal message transmission. The normal format confirmation of the message can be confirmed by the AIS sending / receiving module 410 of the ship 400. [

Table 2 below shows parameters according to the message type and the number of allocated bits per each parameter.

No ASM 8 Parameter bits No ASM 6 Parameter bits One Message ID 6 One Message ID 6 2 Repeat Indicator 2 2 Repeat Indicator 2 3 Source ID 30 3 Source ID 30 4 Spare 2 4 Sequence Number 2 5 DAC 10 5 Destination MMSI 30 6 FI 6 6 Retransmit Flag One 7 Longitude 25 7 Spare One 8 Latitude 24 8 DAC 10 9 Position Accuracy One 9 FI 6 10 UTC Day 5 10 Longitude 25 11 UTC Hour 5 11 Latitude 24 12 UTC Minute 6 12 Position Accuracy One 13 Average Wind Speed 7 13 UTC Day 5 14 Wind Gust 7 14 UTC Hour 5 15 Wind Direction 9 15 UTC Minute 6 16 Wind Gustdirection 9 16 Average Wind Speed 7 17 Air Temperature 11 17 Wind Gust 7 18 Relative Humidity 7 18 Wind Direction 9 19 Dew Point 10 19 Wind Gustdirection 9 20 Air Pressure 9 20 Air Temperature 11 21 Air Pressure Tendency 2 21 Relative Humidity 7 22 Horizontal Visibility 8 22 Dew Point 10 23 Water Level 12 23 Air Pressure 9 24 Water Level Trend 2 24 Air Pressure Tendency 2 25 SurfaceCurrentSpeed 8 25 Horizontal Visibility 8 26 SurfaceCurrentDirection 9 26 Water Level 12 27 CurrentSpeed, # 2 8 27 Water Level Trend 2 28 CurrentDirection, # 2 9 28 SurfaceCurrentSpeed 8 29 CurrentMeasuring level, # 2 5 29 SurfaceCurrentDirection 9 30 CurrentSpeed, # 3 8 30 CurrentSpeed, # 2 8 31 CurrentDirection, # 3 9 31 CurrentDirection, # 2 9 32 CurrentMeasuring level, # 3 5 32 CurrentMeasuring level, # 2 5 33 Significant Wave height 8 33 CurrentSpeed, # 3 8 34 Wave Period 6 34 CurrentDirection, # 3 9 35 Wave Direction 9 35 CurrentMeasuring level, # 3 5 36 Swell Height 8 36 Significant Wave height 8 37 Swell Period 6 37 Wave Period 6 38 Swell Direction 9 38 Wave Direction 9 39 Sea State 4 39 Swell Height 8 40 Water Temperature 10 40 Swell Period 6 41 Precipitation 3 41 Swell Direction 9 42 Salinity 9 42 Sea State 4 43 Ice 2 43 Water Temperature 10 44 Spare 10 44 Precipitation 3 - - - 45 Salinity 9 - - - 46 Ice 2 - - - 47 Spare 10 TOTAL 360 TOTAL 392

Information on each parameter is shown in Table 3 below.

division Contents Collection plan Average Wind Speed Average wind speed for the last 10 minutes observation Wind Gust Maximum wind speed for the last 10 minutes observation Wind Direction Average wind direction for last 10 minutes observation Wind Gustdirection Maximum wind direction for last 10 minutes observation Air Temperature Per 2's complement observation Relative Humidity Relative humidity observation Dew Point The dew point temperature (per 2's complement) observation Air Pressure Atmospheric pressure observation Air Pressure Tendency Air pressure tendency analysis Horizontal Visibility Visible distance observation Water Level (incl. Tide) condolence observation Water Level Trend Tidal tendency analysis SurfaceCurrentSpeed (incl. Tide) The measured velocity at the surface layer observation SurfaceCurrentDirection Seawater flow direction in surface layer observation CurrentSpeed, # 2 The measured flow rate (# 2) observation CurrentDirection, # 2 Seawater flow direction (# 2) observation CurrentMeasuring level, # 2 Measured water level (# 2) observation CurrentSpeed, # 3 The measured flow rate (# 3) observation CurrentDirection, # 3 Seawater flow direction (# 3) observation CurrentMeasuring level, # 3 Measured water level (# 3) observation Significant Wave height Significant digging observation Wave Period Wave period observation Wave Direction Direction observation Swell Height You cry observation Swell Period A swing cycle observation Swell Direction Scented observation Sea State Sea state analysis Water Temperature Water temperature observation Precipitation (Type) Rainfall type analysis Salinity salt observation Ice Glacier observation

The average wind speed, the maximum wind speed, the wind direction, the temperature, the water temperature, the tide, the salinity and the like among the above 31 items are information observed from the ocean observing station 100 and the flow velocity, the direction of the sea water flow, , Waved cycles, and waviness are not observed directly at the ocean observatory (100), but are observed at the nearby ocean observatory. In case of seawater flow, HF-Radar installed at the main trading port in Korea can acquire surface sea water flow data in the vicinity of the trade port. Relative humidity, dew point temperature, visible distance, etc., are information that is not currently observed at Ocean Observatory (100) and Ocean Observation Buoy. In case of air pressure tendency or tidal tendency, it is necessary to analyze the tendency for a certain time based on observed information such as atmospheric pressure and tide, and to produce an analysis program or a tool for expressing the result to produce additional data.

However, in order to provide all the information presented in real time, the data must be collected by a marine data distribution agency 300 such as the National Oceanographic Research Institute, and therefore, only the information that can be observed from the ocean observation station 100 is used.

Among the above parameters, marine data which can be collected from the database of the ocean observing station 100 are arranged according to the order determined in Table 2, and then converted into binary data by applying the allocated number of bits. And the ASM message is generated using this, and the result is as shown in FIG.

That is, when each parameter inputted in the table on the left side of FIG. 4 is converted into binary data in the form of ASM message, "! AIVDM, 1,1, A, 8> qc9wh0Gm; Jt2V`406 The message "wvlFR06EuOwgwl? wnSwe7wvlOwwsAwwnSGmwvh0,0 * 38" is generated.

The ASM message is transmitted to the AIS transmission / reception module 410 of the ship 400 by the ASM message transmission module 630 and the AIS transmission / reception module 650 and is decoded by the AIS transmission / reception module 410 of the ship, The same result is obtained.

As shown in FIG. 7, this result is displayed in the ECDIS by the AIS sending / receiving module 410 of the ship, and the user can confirm the real-time marine data.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be clear to those who have knowledge.

100: Ocean Observatory
110: Observation equipment
120: Data collection module
121: main processing module
121a:
122: visualization module
122a: Database
140: Transmission module
200: Ocean data verification organization
210: QC module
220: Transmitting / receiving module
300: Marine data distribution agency
310: Database
320: Transmitting / receiving module
400: Ship
410: AIS transmit / receive module
600: Sea level information standardization module
610: Database connection module
620: AIS-ASM message encoding module
630: ASM message sending module
640: QC module
641:
642: delay time processor
650: AIS transmit / receive module
651: GPS antenna
652: VHF antenna

Claims (4)

An ocean observatory (100) for observing and gathering marine data including tide information;
And a ship 400 equipped with an AIS transmission / reception module 410,

The ocean observatory 100
Observation equipment (110) including ocean level data and observation of marine data,
A data collection module 120 for collecting the marine data observed at the observation equipment 110,
A marine data standardization module 600 that encodes the marine data collected by the data collection module 120 into an AIS message and transmits the encoded data to the AIS receiving module 410 of the marine vessel 400,

The data collection module 120
A main processing module 121 for storing the marine data observed by the observation equipment 110 in the database 121a and backing up the data to the visualization module 122,
And a visualization module (122) for storing the marine data backed up by the main processing module (121) in a database (122a) and visualizing the data,

The marine data standardization module 600
A database connection module 610 for accessing the visualization module database 122a of the data collection module 120 and loading the stored marine data,
A QC module 640 for managing (QC-processing) the quality of marine data imported from the database connection module 610,
An AIS-ASM message encoding module 620 for reading and encoding the QC-processed marine data in the QC module 640 into an ASM message,
An ASM message transmission module 630 for transmitting the ASM message encoded in the AIS-ASM message encoding module 620 to the AIS transmission module 650,
And an AIS transmission / reception module 650 for transmitting the ASM message received from the ASM message transmission module 630 through the AIS network,

The ASM message
Message type 6 transmitted to the designated ship,
A message type 8 transmitted to a plurality of ships in broadcasting mode,

In the AIS-ASM message encoding module 620,
The marine data that can be collected from the database of the ocean observatory (100)
The number of allocated bits is applied according to a predetermined order, converted into binary data, and then an ASM message is generated,

In the AIS transmission / reception module 410 of the ship 400,
Characterized in that it is confirmed whether the format of the message is normal and is expressed by ECDIS
AIS based real - time marine data providing system.
The method according to claim 1,
The QC module 640
A threshold value processing unit 641 that considers an error when the values of consecutive data differ by more than a predetermined value per data interval,
And a delay time processing unit (642) for deeming an error when the difference between the time at which the data is stored in the database and the time at which the data is observed is longer than a predetermined time
AIS based real - time marine data providing system.
3. The method according to claim 1 or 2,
The AIS sending / receiving module 650
A GPS antenna 651 and a VHF antenna 652
AIS based real - time marine data providing system.

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