WO2023026549A1 - Dispositif de collecte d'informations de navire, système de collecte d'informations de navire et procédé de collecte d'informations de navire - Google Patents

Dispositif de collecte d'informations de navire, système de collecte d'informations de navire et procédé de collecte d'informations de navire Download PDF

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Publication number
WO2023026549A1
WO2023026549A1 PCT/JP2022/012634 JP2022012634W WO2023026549A1 WO 2023026549 A1 WO2023026549 A1 WO 2023026549A1 JP 2022012634 W JP2022012634 W JP 2022012634W WO 2023026549 A1 WO2023026549 A1 WO 2023026549A1
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WO
WIPO (PCT)
Prior art keywords
ship
data
data set
voyage
transmission data
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PCT/JP2022/012634
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English (en)
Japanese (ja)
Inventor
雄介 豊田
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古野電気株式会社
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Publication date
Application filed by 古野電気株式会社 filed Critical 古野電気株式会社
Priority to EP22860847.7A priority Critical patent/EP4393809A1/fr
Priority to JP2023543666A priority patent/JPWO2023026549A1/ja
Priority to CN202280043843.2A priority patent/CN117581283A/zh
Publication of WO2023026549A1 publication Critical patent/WO2023026549A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B79/00—Monitoring properties or operating parameters of vessels in operation
    • B63B79/40—Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B49/00—Arrangements of nautical instruments or navigational aids
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G3/00—Traffic control systems for marine craft
    • G08G3/02—Anti-collision systems

Definitions

  • the present invention relates to a ship information collection device, a ship information collection system, and a ship information collection method.
  • navigation data and engine data are automatically collected and stored in an onboard server from onboard equipment via an onboard LAN system, and an onboard computer displays the navigation data and engine data in an integrated manner.
  • the navigation data and engine data accumulated in the onboard server are transferred to the portal site server via the satellite communication system and accumulated, and the accumulated navigation data and engine data are transferred via the Internet line. is obtained by a management computer, and the navigation data and the engine data are integrated and displayed on the management computer.
  • the present invention has been made in view of the above problems, and its main object is to provide a ship information collecting device and a ship information collecting system that can easily collect voyage data of other ships while suppressing the amount of communication data. , and to provide a ship information collection method.
  • a ship information collection device includes an acquisition unit that sequentially acquires voyage data of other ships existing around the ship, which are detected by a detection device mounted on the ship. a determination unit that determines whether to include the voyage data of the other ship in a transmission data set that is sequentially transmitted to a data collection server; and a generation unit that generates the transmission data set including the voyage data of the other ship. , provided. According to this, it becomes easy to collect voyage data of other ships while suppressing the amount of communication data.
  • a risk calculation unit that calculates a collision risk value representing a risk of collision between the ship and the other ship based on the voyage data of the ship and the voyage data of the other ship, wherein the determination unit Depending on the collision risk value, it may be determined whether to include voyage data of the other vessel in the transmission data set. This makes it possible to include voyage data of other ships with a relatively high risk of collision in the transmission data set.
  • the determination unit may determine the frequency of including the voyage data of the other ship in the transmission data set according to the collision risk value. According to this, it is possible to increase the frequency of including voyage data of other ships with a relatively high risk of collision in the transmission data set.
  • the above aspect further comprises a distance calculation unit that calculates a distance between the ship and the other ship based on the voyage data of the ship and the voyage data of the other ship, wherein the determination unit determines the distance between the ships. Accordingly, it may be determined whether or not to include the voyage data of the other vessel in the transmission data set. According to this, it is possible to include the voyage data of other ships with relatively short inter-ship distances in the transmission data set.
  • the determination unit may determine the frequency of including the voyage data of the other ship in the transmission data set according to the inter-ship distance. According to this, it is possible to increase the frequency of including the voyage data of other ships with relatively short inter-ship distances in the transmission data set.
  • the voyage data of the other ship may be AIS data.
  • the generation unit may include predetermined types of data among the AIS data in the transmission data set, and may not include remaining types of data in the transmission data set. According to this, it is possible to suppress the amount of communication data while including desired types of data in the transmission data set.
  • the generation unit may include the remaining types of data in the transmission data set when there is a change in the remaining types of data. This allows the remaining types of data to be included in the transmission data set in the event of a change.
  • the determination unit may determine the frequency of including the voyage data of the other ship in the transmission data set according to the speed of the ship. According to this, for example, when the speed of the ship is high, it is possible to increase the frequency of including the voyage data of other ships in the transmission data set.
  • the determination unit may determine the frequency of including the voyage data of the other ship in the transmission data set according to the ship type of the ship. According to this, it is possible to increase the frequency of including the voyage data of other ships in the transmission data set, for example, in a relatively large ship.
  • the determination unit determines the frequency of including the voyage data of the other ship in the transmission data set according to the degree of congestion. may decide. According to this, it is possible to increase the frequency of including the voyage data of other ships in the transmission data set, for example, when the degree of congestion is relatively high.
  • the determination unit may determine the frequency of including the voyage data of the other vessel in the transmission data set according to the sea area in which the vessel navigates. According to this, for example, when a ship navigates a predetermined sea area, it is possible to increase the frequency of including the voyage data of other ships in the transmission data set.
  • the determination unit may include the voyage data of the other vessel in the transmission data set more frequently when the vessel navigates in coastal waters than when the vessel navigates in offshore waters. . According to this, when a ship navigates in coastal waters, it is possible to increase the frequency of including the voyage data of other ships in the transmission data set.
  • a ship information collection system comprises a detection device mounted on a ship for successively detecting voyage data of other ships existing around the ship; a determination unit that determines whether to include the data in the data set, a generation unit that generates the transmission data set including the voyage data of the other ship, a communication device that sequentially transmits the transmission data set, and the transmission data set that has been transmitted. a data collection server for collecting. According to this, it becomes easy to collect voyage data of other ships while suppressing the amount of communication data.
  • a ship information collecting method sequentially detects voyage data of other ships existing around the ship with a detection device mounted on the ship, and transmits the voyage data of the other ships as transmission data. determine whether to include in the set, generate the transmission data set including the voyage data of the other ship, sequentially transmit the transmission data set by the communication device, and transmit the transmission data set by the data collection server to collect. According to this, it becomes easy to collect voyage data of other ships while suppressing the amount of communication data.
  • FIG. 4 is a diagram for explaining CPA;
  • FIG. 4 is a diagram for explaining OZT; It is a figure for demonstrating the distance between ships. It is a figure which shows the modification of step S15.
  • FIG. 1 is a diagram showing a configuration example of the ship information collection system 100.
  • the ship information collection system 100 includes a shipboard system 100 mounted on a ship SH and a data collection server 200 installed on land.
  • the shipboard system 100 and the data collection server 200 can communicate with each other through satellite communication using satellite ST.
  • satellite communication using satellite ST.
  • wireless communication using ultra-short waves, very short waves, short waves, medium waves, or the like may be used.
  • FIG. 2 is a block diagram showing a configuration example of the shipboard system 100.
  • the ship on which the onboard system 100 is installed is called “own ship”, and other ships are called “other ships”.
  • a shipboard system 100 includes a ship information collecting device 1 , a VDR (voyage information recording device) 20 , a data logger 30 , and a communication device 40 . Note that the VDR 20 and data logger 30 may be omitted.
  • the shipboard system 100 further comprises a radar 3, an AIS 4, a camera 5, a GNSS receiver 6, a gyrocompass 7, and an ECDIS 8.
  • Each device included in the shipboard system 100 is connected to a communication network such as a LAN, for example, and is capable of network communication with each other.
  • the vessel information collection device 1 is a computer including a CPU, RAM, ROM, non-volatile memory, input/output interface, and the like.
  • the CPU of the vessel information collection device 1 executes information processing according to a program loaded from the ROM or nonvolatile memory to the RAM.
  • the program may be supplied via an information storage medium such as an optical disk or memory card, or via a communication network such as the Internet or LAN.
  • VDR 20 is connected to radar 3, AIS 4, camera 5, GNSS receiver 6, gyrocompass 7, and ECDIS 8, etc., and obtains navigation system data including navigation data of own ship and navigation data of other ships from these devices. and provided to the vessel information collection device 1.
  • the data logger 30 is connected to the engine 91 and the generator 92, etc., acquires engine system data including log data of these machines, and provides it to the vessel information collection device 1.
  • the communication device 40 is a communication device for realizing satellite communication via the satellite ST.
  • the data logger 30 can also be used for boilers, burners, pumps, propellers, shaft horsepower, water generators, oil purifiers, compressors, ballast water treatment devices, air conditioners, liquid level gauges, marine elevators, deck cranes, etc. Connected.
  • the radar 3 emits radio waves around its own ship, receives the reflected waves, and generates echo data based on the received signals.
  • the radar 3 also identifies the target from the echo data and generates target tracking data (TT data) representing the position and speed of the target.
  • TT data target tracking data
  • the AIS (Automatic Identification System) 4 receives AIS data from other ships around the ship or from land control. Not limited to AIS, VDES (VHF Data Exchange System) may be used.
  • the AIS data includes identification codes of other ships, ship names, positions, courses, ship speeds, ship types, hull lengths, destinations, and the like.
  • the camera 5 is a digital camera that captures images of the outside from the own ship and generates image data.
  • the camera 5 may include an image recognition unit that estimates the position and type of a target object such as a ship included in the captured image using an object detection model.
  • the image recognition unit is not limited to the camera 5, and may be implemented in other devices such as the vessel information collection device 1.
  • the GNSS receiver 6 detects the position of the own ship based on radio waves received from the GNSS (Global Navigation Satellite System).
  • the gyrocompass 7 detects the heading of the own ship.
  • a GPS compass may be used instead of the gyro compass.
  • the ECDIS (Electronic Chart Display and Information System) 8 acquires the ship's position from the GNSS receiver 6 and displays the ship's position on the electronic chart.
  • the ECDIS 8 also displays the planned route of the own ship on the electronic chart.
  • a GNSS plotter may be used.
  • AIS4 is an example of a detection device
  • AIS data is an example of voyage data of other ships.
  • the AIS 4 sequentially detects AIS data.
  • the radar 3 may be used as an example of the detection device
  • the TT data may be used as an example of the voyage data of the other ship. It is good also as an example of data.
  • FIG. 3 is a block diagram showing a configuration example of the vessel information collection device 1.
  • the control unit 10 of the vessel information collection device 1 includes a data acquisition unit 11 , a data set generation unit 12 , a frequency determination unit 13 , a risk calculation unit 14 , a distance calculation unit 15 and a congestion determination unit 16 . These functional units are implemented by the control unit 10 executing information processing according to programs.
  • the data acquisition unit 11 sequentially acquires the AIS data detected by the AIS 4 as voyage data of other ships.
  • the data acquisition unit 11 may indirectly acquire the AIS data from the VDR 20 or directly acquire the AIS data from the AIS 4 .
  • the data acquisition unit 11 sequentially acquires navigation data recorded in the VDR 20 .
  • the navigation data includes the navigation data of own ship and the navigation data of other ships.
  • the voyage data of the own ship includes, for example, the position, bearing, and speed of the own ship.
  • the data acquisition unit 11 sequentially acquires engine system data including log data of the engine 91 and the generator 92 recorded in the data logger 30 . Furthermore, the data acquisition unit 11 also sequentially acquires device monitoring data for monitoring the operating status of each device.
  • the data set generation unit 12 generates a transmission data set that includes AIS data as voyage data of other ships.
  • the generated transmission data set is sequentially transmitted by the communication device 40 (see FIG. 2).
  • the data set generation unit 12 generates a transmission data set including navigation data, engine data, and equipment monitoring data acquired by the data acquisition unit 11 .
  • the transmission data set may or may not include AIS data.
  • FIG. 4 is a diagram showing an example of a procedure for generating a transmission data set in the ship information collection method implemented in the ship information collection system 300.
  • the control unit 10 of the vessel information collection device 1 executes the information processing shown in the figure according to a program.
  • control unit 10 acquires navigation data from the VDR 20 (see FIG. 2) (S11, processing as the data acquisition unit 11).
  • control unit 10 acquires engine system data from the data logger 30 (see FIG. 2) (S12, processing as the data acquisition unit 11).
  • control unit 10 acquires device monitoring data of each device (S13, processing as the data acquisition unit 11).
  • control unit 10 determines whether or not it is time to include the AIS data in the transmission data set (S14).
  • the frequency of including the AIS data in the transmission data set (for example, once every few seconds, every few minutes, or every few tens of minutes) is determined in advance by the control unit 10 and stored. The details of determining the frequency will be described later.
  • the control unit 10 When it is time to include AIS data in the transmission data set (S14: YES), the control unit 10 generates a transmission data set including AIS data (S15, processing as the data set generation unit 12).
  • control unit 10 determines whether it is not the time to include AIS data in the transmission data set (S14: NO). If it is not the time to include AIS data in the transmission data set (S14: NO), the control unit 10 generates a transmission data set that does not include AIS data (S16, processing as the data set generation unit 12).
  • control unit 10 performs transmission processing of the generated transmission data set (S17).
  • the transmission data set is transmitted to the outside from the communication device 40 (see FIG. 2) and finally collected in the data collection server 200 (see FIG. 1) via satellite communication.
  • the control unit 10 repeats the processing of S11-S17 described above each time a predetermined time elapses (S18).
  • the frequency determination unit 13 determines whether or not to include AIS data in the transmission data set. Specifically, the frequency determining unit 13 determines how often the AIS data is included in the transmission data set. In other words, the frequency determining unit 13 determines whether or not to include AIS data in each transmission data set that is sequentially transmitted.
  • the frequency determination unit 13 may determine the frequency based on time, such as once every several seconds, minutes, or tens of minutes, or determine the frequency based on the number of times, such as once every several times. good too. Note that the frequency determination unit 13 may determine to include AIS data in all transmission data sets, or may determine not to include it in all transmission data sets.
  • the frequency determination unit 13 determines how often AIS data is included in the transmission data set by various methods described below.
  • the risk calculation unit 14 calculates a collision risk value representing the risk of collision between the own ship and other ships based on the voyage data of the own ship and the voyage data of the other ships.
  • the frequency determination unit 13 determines how often AIS data is included in the transmission data set according to the collision risk value calculated by the risk calculation unit 14 .
  • the collision risk value is, for example, TCPA (Time to Closest Point of Approach)/DCPA (Distance to Closest Point of Approach).
  • TCPA Time to Closest Point of Approach
  • DCPA Distance to Closest Point of Approach
  • the frequency determination unit 13 increases the frequency of including AIS data in the transmission data set, for example, when at least one of TCPA and DCPA is below the threshold.
  • the frequency determining unit 13 may stepwise increase the frequency of including AIS data in the transmission data set, for example, as at least one of TCPA and DCPA decreases.
  • the frequency determination unit 13 determines the frequency of including AIS data in the transmission data set for each AIS data. For example, other ships whose collision risk value is higher than the threshold have a higher frequency of including AIS data in the transmission data set than other ships whose collision risk value is lower than the threshold.
  • the collision risk value may be calculated based on, for example, OZT (Obstacle Zone by Target). As shown in FIG. 6 , in the method of displaying the OZT, the risk calculation unit 14 assumes that the own ship changes course and reaches each decision point on the predicted course of the other ship. A collision risk value representing the risk of collision between the ship and another ship is calculated.
  • OZT Open Zone by Target
  • the risk calculation unit 14 determines whether the own ship changes course from its current position while maintaining its speed and reaches the decision point, and when the other ship maintains its speed from its current position and reaches the decision point.
  • the collision risk value of the collision is calculated as the probability that the own ship and the other ship are present at the decision point at the same time when it is assumed that they will arrive, and OZT is displayed at the decision point where the collision risk value is equal to or greater than the threshold.
  • the frequency determination unit 13 increases the frequency of including AIS data in the transmission data set, for example, when there is an OZT on the own ship's heading line or on the scheduled route. Not limited to this, the frequency determination unit 13 may increase the frequency of including AIS data in the transmission data set, for example, when the OZT exists within a predetermined distance from the own ship.
  • the distance calculation unit 15 calculates the distance between the own ship and the other ship based on the voyage data of the own ship and the voyage data of the other ship.
  • the frequency determination unit 13 determines how often the AIS data is included in the transmission data set according to the distance between ships calculated by the distance calculation unit 15 .
  • the frequency determination unit 13 sets a plurality of thresholds a1 to a3 for the distance between ships, and changes the frequency of including AIS data in the transmission data set step by step.
  • the interval is 15 seconds for 1 nm (nautical mile) or less, the interval is 1 minute for over 1 nm to 10 nm, and the interval is 5 minutes for over 10 nm to 20 nm.
  • the frequency determination unit 13 determines the frequency of including AIS data in the transmission data set for each AIS data. For example, other ships whose ship-to-ship distance is shorter than the threshold have a higher frequency of including AIS data in the transmission data set than other ships whose ship-to-ship distance is longer than the threshold.
  • the congestion determination unit 16 determines the degree of congestion in the sea area where the own ship navigates. Specifically, the congestion determination unit 16 determines the degree of congestion in the sea area where the own ship navigates based on the occupancy rate of the slot map of the AIS 4 (see FIG. 2).
  • the frequency determination unit 13 determines how often AIS data is included in the transmission data set according to the degree of congestion calculated by the congestion determination unit 16 . For example, when the degree of congestion in the sea area where the own ship navigates is higher than the threshold, the frequency of including AIS data in the transmission data set is higher than when the degree of congestion is lower than the threshold.
  • the frequency determination unit 13 may determine the frequency of including AIS data in the transmission data set according to the speed of the own ship. For example, the frequency determining unit 13 increases the frequency of including AIS data in the transmission data set as the speed of the own ship increases.
  • the frequency determination unit 13 may determine the frequency of including AIS data in the transmission data set according to the ship type of the own ship or other ships. For example, the frequency determining unit 13 increases the frequency of including AIS data in the transmission data set as the own ship has a larger hull type.
  • the frequency determining unit 13 may increase the frequency of including AIS data in the transmission data set as the other ship has a smaller hull type. This is because the smaller the ship, the more maneuverable it is, and the more difficult it is to read its behavior.
  • the frequency determination unit 13 may determine the frequency of including AIS data in the transmission data set according to the sea area in which the own ship navigates. The sea area in which the own ship navigates is determined based on the electronic chart data.
  • the frequency determining unit 13 increases the frequency of including AIS data in the transmission data set when the own ship navigates in coastal waters than when the own ship navigates in offshore waters.
  • coastal waters have more accidents than offshore waters, so it is preferable to increase the frequency in coastal waters from the viewpoint of accident verification.
  • the frequency determining unit 13 may include AIS data in the transmission data set more frequently when the own ship navigates offshore waters than when the own ship navigates coastal waters. .
  • AIS data received by base stations on land can often be used, so it is preferable to reduce the frequency from the viewpoint of suppressing the amount of communication data.
  • FIG. 8 is a diagram showing a modification of step S15 in FIG. 4 above.
  • AIS data consists of constantly changing dynamic information such as the positions of other ships (Msg 1-3, etc., Msg 18, etc. for Class B) and static information, which has almost no change (Msg 5, etc., Msg 24 for Class B). etc.).
  • control unit 10 of the ship information collection device 1 monitors the static information of the AIS data, and if there is no change in the static information of the AIS data (S151: NO), Only the dynamic information of is included in the transmission data set, and the static information is not included in the transmission data set (S152).
  • the control unit 10 of the ship information collection device 1 stores not only the dynamic information of the AIS data but also the static information in the transmission data set. Include (S153). Only part of the changed static information may be included in the transmission data set, or all static information may be included in the transmission data set.

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  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un dispositif de collecte d'informations de navire qui permet de collecter facilement des données de navigation d'un autre navire tout en réduisant le volume de données de communication. À cet effet, l'invention concerne un dispositif de collecte d'informations de navire qui comprend : une unité d'acquisition qui acquiert de manière séquentielle des données de navigation d'un autre navire présent dans la périphérie d'un navire détecté par un dispositif de détection monté dans le navire ; une unité de détermination qui détermine si les données de navigation dudit autre navire doivent être incluses ou non dans un ensemble de données de transmission qui est transmis de manière séquentielle à un serveur de collecte de données ; et une unité de génération qui génère l'ensemble de données de transmission qui comprend les données de navigation dudit autre navire.
PCT/JP2022/012634 2021-08-26 2022-03-18 Dispositif de collecte d'informations de navire, système de collecte d'informations de navire et procédé de collecte d'informations de navire WO2023026549A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22860847.7A EP4393809A1 (fr) 2021-08-26 2022-03-18 Dispositif de collecte d'informations de navire, système de collecte d'informations de navire et procédé de collecte d'informations de navire
JP2023543666A JPWO2023026549A1 (fr) 2021-08-26 2022-03-18
CN202280043843.2A CN117581283A (zh) 2021-08-26 2022-03-18 船舶信息收集装置、船舶信息收集系统、以及船舶信息收集方法

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Application Number Priority Date Filing Date Title
JP2021138051 2021-08-26
JP2021-138051 2021-08-26

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WO2023026549A1 true WO2023026549A1 (fr) 2023-03-02

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EP (1) EP4393809A1 (fr)
JP (1) JPWO2023026549A1 (fr)
CN (1) CN117581283A (fr)
WO (1) WO2023026549A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06131600A (ja) * 1992-03-27 1994-05-13 Thomson Csf 海上航法制御方法
JPH11345397A (ja) * 1998-05-29 1999-12-14 Masami Murayama コンピュータネットワークによる航行支援システム
JP2006163765A (ja) * 2004-12-07 2006-06-22 Natl Inst For Land & Infrastructure Management Mlit 船舶運航監視システム
JP2008198136A (ja) 2007-02-15 2008-08-28 Mitsui Eng & Shipbuild Co Ltd 船舶の情報処理方法及び船舶の情報処理システム
WO2017204075A1 (fr) * 2016-05-26 2017-11-30 古野電気株式会社 Dispositif de traitement de signal et dispositif radar

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06131600A (ja) * 1992-03-27 1994-05-13 Thomson Csf 海上航法制御方法
JPH11345397A (ja) * 1998-05-29 1999-12-14 Masami Murayama コンピュータネットワークによる航行支援システム
JP2006163765A (ja) * 2004-12-07 2006-06-22 Natl Inst For Land & Infrastructure Management Mlit 船舶運航監視システム
JP2008198136A (ja) 2007-02-15 2008-08-28 Mitsui Eng & Shipbuild Co Ltd 船舶の情報処理方法及び船舶の情報処理システム
WO2017204075A1 (fr) * 2016-05-26 2017-11-30 古野電気株式会社 Dispositif de traitement de signal et dispositif radar

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JPWO2023026549A1 (fr) 2023-03-02
EP4393809A1 (fr) 2024-07-03

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