Ship navigation support system, ship navigation support method, ship navigation support device, and program

Abstract

[Problem] To provide a ship navigation assistance system that facilitates an understanding of the movement of a ship. [Solution] A ship navigation assistance system comprises: a recommended route provision device that transmits recommended route data for a first ship; a first ship navigation assistance device that is mounted on the first ship and transmits affirmative response data indicating that a recommended route based on the recommended route data for the first ship has been accepted; and a second ship navigation assistance device provided with a recommended route acquisition unit that is mounted on a second ship and acquires the recommended route data for the first ship, an affirmative response acquisition unit that acquires the affirmative response data, and a display unit that displays the recommended route based on the recommended route data for the first ship in a way that enables a distinction to be made between acquisition before and after the affirmative response data is acquired.

Description

[Technical field]

[0001] The present invention relates to a ship navigation support system, a ship navigation support method, a ship navigation support device, and a program. [Background technology]

[0002] Patent document 1 describes a method of calculating the approach angle and exit angle of a specific ship's wake for each of a number of grids through which the wake passes, extracting grids whose approach and exit angles meet judgment conditions set for each of the number of grids, and determining whether the specific ship has taken evasive action based on the relative distance to other ships corresponding to the position of the specific ship in the wake in the extracted grid. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-182729 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the field of shipping, even if the control tower issues instructions to a ship, it is difficult for other ships to know whether the ship is following the control tower's instructions.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its main objective is to provide a ship navigation support system, a ship navigation support method, a ship navigation support device, and a program that make it easy to grasp the movements of a ship. [Means for solving the problem]

[0006] In order to solve the above problem, one embodiment of the ship navigation support system of the present invention comprises a recommended route providing device that transmits recommended route data for a first ship, a first ship navigation support device mounted on the first ship and transmitting affirmative response data indicating that a recommended route based on the recommended route data for the first ship has been accepted, and a second ship navigation support device mounted on a second ship and comprising a recommended route acquisition unit that acquires the recommended route data for the first ship, an affirmative response acquisition unit that acquires the affirmative response data, and a display unit that displays the recommended route based on the recommended route data for the first ship in a manner that allows it to be distinguished before and after the affirmative response data is acquired.

[0007] In addition, another aspect of the ship navigation support method of the present invention includes transmitting recommended route data for a first ship using a recommended route providing device, transmitting affirmative response data indicating that the recommended route based on the recommended route data for the first ship has been accepted by a first ship navigation support device mounted on the first ship, acquiring the recommended route data for the first ship using a second ship navigation support device mounted on a second ship, acquiring the affirmative response data, and displaying the recommended route based on the recommended route data for the first ship in a manner that is distinguishable before and after the affirmative response data is acquired.

[0008] In addition, a ship navigation assistance device of another aspect of the present invention includes a recommended route acquisition unit that acquires recommended route data for other ships, an affirmative response acquisition unit that acquires affirmative response data indicating that a recommended route based on the recommended route data for the other ship has been accepted, and a display unit that displays the recommended route based on the recommended route data for the other ship in a manner that allows it to be distinguished before and after the affirmative response data is acquired.

[0009] In addition, a program of another aspect of the present invention causes a computer to function as a recommended route acquisition unit that acquires recommended route data for other ships, a positive response acquisition unit that acquires positive response data indicating that a recommended route based on the recommended route data for the other ship has been accepted, and a display control unit that displays the recommended route based on the recommended route data for the other ship in a manner that allows it to be distinguished before and after the positive response data is acquired. Effect of the Invention

[0010] According to the present invention, it becomes easier to grasp the movement of a ship. [Brief description of the drawings]

[0011] [Figure 1] 1 is a diagram illustrating an example of a ship navigation support system according to an embodiment. [Diagram 2] FIG. 1 is a diagram illustrating an example of a recommended route providing device according to an embodiment. [Diagram 3] FIG. 1 is a diagram showing an example of a ship ICT system installed on a ship. [Figure 4] 1 is a diagram illustrating an example of a ship navigation support device according to an embodiment. [Diagram 5] FIG. 1 is a diagram illustrating an example of a ship navigation support method according to an embodiment. [Figure 6] FIG. 13 is a diagram showing an example of a screen display. [Figure 7] FIG. 13 is a diagram showing an example of a screen display. [Figure 8] FIG. 13 is a diagram showing an example of a screen display. [Figure 9] FIG. 13 is a diagram showing an example of a screen display. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] Fig. 1 is a diagram showing an example of a ship navigation support system 100. The diagram shows a land-based control C and a number of ships S navigating in a controlled area A. The control C is, for example, a marine traffic center or a port radio station.

[0014] The ship navigation support system 100 includes a recommended route providing device 1 (hereinafter referred to as providing device 1) provided in a control C, and multiple ship navigation support devices 2 (hereinafter referred to as support devices 2) provided on multiple ships S.

[0015] 2 is a block diagram showing an example of the configuration of the providing device 1. The providing device 1 includes a control unit 10 and a communication device 19. The control unit 10 is a computer such as a server computer.

[0016] Specifically, the control unit 10 is a computer including a CPU, RAM, ROM, non-volatile memory, an input / output interface, etc. The CPU of the control unit 10 executes information processing according to a program loaded from the ROM or non-volatile memory to the RAM.

[0017] The program may be supplied via an information storage medium such as an optical disk or a memory card, or may be supplied via a communication network such as the Internet or a LAN.

[0018] The control unit 10 includes a navigation data acquisition unit 11 and a recommended route generation unit 12. These functional units are realized by the CPU of the control unit 10 executing information processing according to a program.

[0019] The navigation data acquisition unit 11 acquires ship navigation data from each ship S via the communication device 19. The ship navigation data is, for example, AIS data transmitted from the ship S.

[0020] The recommended route generating unit 12 generates recommended route data for each ship S based on the ship navigation data acquired from each ship S.

[0021] The communication equipment 19 includes various types of radio equipment for realizing communication with the ship S, such as radio equipment in the VHF band, the mid-wave band, and the shortwave band.

[0022] The recommended route data generated by the recommended route generating unit 12 is provided to the ship S via the communication device 19. The recommended route data is included in AIS data transmitted from the control C, for example.

[0023] 3 is a block diagram showing an example of the configuration of a ship ICT system 200 installed on the ship S. The support device 2 is included in the ship ICT system 200.

[0024] In addition to the support device 2, the ship ICT system 200 also includes, for example, a radar 3, a GNSS receiver 4, a gyrocompass 5, an ECDIS 6, and an AIS 7. These devices are connected to a network N, such as a LAN (Local Area Network), and are capable of network communication with each other.

[0025] The radar 3 detects targets present around the ship and generates target tracking data (TT data) that represents the position and velocity vector of the target.

[0026] The GNSS receiver 4 detects the position of the ship based on radio waves received from a Global Navigation Satellite System (GNSS), and generates position data indicating the position of the ship.

[0027] The gyrocompass 5 detects the heading of the ship and generates heading data representing the heading of the ship. However, the gyrocompass 5 is not limited to this, and a GPS compass or a magnetic compass may be used.

[0028] An ECDIS (Electronic Chart Display and Information System) 5 acquires the ship's position data from the GNSS receiver 3 and displays the ship's position on an electronic chart. The ECDIS 5 also displays a planned route that is set to follow a number of waypoints in order on the electronic chart. Instead of the ECDIS 5, a GNSS plotter having similar functions may be used.

[0029] In this example, the support device 2 and the ECDIS 5 are provided as separate devices, but the present invention is not limited to this. The support device 2 and the ECDIS 5 may be provided as an integrated device. In other words, the function of the support device 2 may be incorporated into the ECDIS 5.

[0030] An AIS (Automatic Identification System) 6 transmits AIS data to surrounding ships S and land-based control C, and receives AIS data from surrounding ships S and land-based control C. Not limited to this, a VDES (VHF Data Exchange System) may also be used.

[0031] The AIS data transmitted from the ship S includes data such as the identification code, ship name, position, course, ship speed, and destination. The AIS data transmitted from the control C includes data such as control information.

[0032] 4 is a block diagram showing an example of the configuration of the support device 2. The support device 2 includes a control unit 20, an operation unit 28, and a display unit 29.

[0033] The control unit 20 is a computer similar to the control unit 10 of the providing device 1. The control unit 20 includes a recommended route acquisition unit 21, an affirmative response acquisition unit 22, and a display control unit 23. These functional units are realized by the CPU of the control unit 20 executing information processing according to a program.

[0034] The operation unit 21 is, for example, a pointing device such as a touch panel or a trackball, etc. The display unit 22 is, for example, a display device such as a liquid crystal display or an organic EL display.

[0035] The recommended route acquisition unit 21 acquires recommended route data from the control C via the AIS 7. The recommended route acquisition unit 21 acquires not only recommended route data for the own ship, but also recommended route data for other ships.

[0036] The acknowledgement acquisition unit 22 acquires acknowledgement data (so-called ACK data) transmitted from other ships. The acknowledgement data is data indicating that the recommended route based on the recommended route data for the other ship has been accepted by the crew of the other ship.

[0037] The display control unit 23 displays a recommended route based on the recommended route data acquired from the control C on the electronic chart displayed on the display unit 29.

[0038] Specifically, the display control unit 23 displays not only the recommended route for the ship itself, but also the recommended routes for other ships. Furthermore, the display control unit 23 displays the recommended routes for other ships in a manner that makes it possible to distinguish between before and after the acquisition of the positive response data (details will be described later).

[0039] Hereinafter, a description will be given of specific operations of the providing device 1 installed in the control C and the support devices 2 installed on the multiple ships S. Fig. 5 is a flow diagram showing an example of a procedure of a ship navigation support method according to an embodiment, which is realized by the providing device 1 and the multiple support devices 2.

[0040] The providing device 1 of the control C executes the processes of S11 to S14 shown in the figure. The support device 2 of the ship S executes the processes of S21 to S25 or S31 to S34 shown in the figure.

[0041] First, the support device 2 of the ship S transmits AIS data (S21), and the providing device 1 of the control C receives the AIS data transmitted from the ship S (S11; processing as the navigation data acquisition unit 11).

[0042] Next, the provision device 1 of the control C generates recommended route data based on the AIS data transmitted from the ship S (S12; processing as the recommended route generation unit 12). Specifically, the provision device 1 of the control C acquires AIS data from all ships S in the control area A and its surroundings, and calculates a recommended route for each ship S.

[0043] For example, the planned route of each ship S is identified based on AIS data, and the planned route without collision risk is adopted as the recommended route as is, while the recommended route including avoidance action is calculated for the planned route with collision risk. The calculation algorithm of the recommended route is not particularly limited.

[0044] The planned route of the ship S is predicted based on data such as the position, course, speed, and destination included in the AIS data. Alternatively, data on the planned route displayed by the ECDIS 5 (see FIG. 3) may be included in the AIS data and used.

[0045] The recommended route data also includes data on a recommended vessel speed associated with the recommended route. The recommended vessel speed data may be, for example, a specific vessel speed value or may represent a relative vessel speed such as acceleration or deceleration. The recommended route data also includes data for identifying the vessel S that is the subject of the recommended route.

[0046] Next, the providing device 1 of the control C transmits the generated recommended route data (S13). The recommended route data is transmitted together with AIS data. Therefore, the recommended route data is received by all ships S in the control area A and its surrounding areas. In other words, the recommended route data is received not only by the ship S that is the subject of the recommended route (hereinafter referred to as the first ship), but also by other ships S (hereinafter referred to as the second ship).

[0047] When the support device 2 of the first ship receives the recommended route data for the ship from the control C (S22; processing as the recommended route acquisition unit 21), it displays the recommended route for the ship based on the received recommended route data (S23; processing as the display control unit 23). As shown in Fig. 6, the recommended route for the ship is displayed on the electronic chart displayed on the display unit 29 of the first ship. The recommended route is associated with a recommended ship speed, such as acceleration or deceleration, for each section.

[0048] Furthermore, the support device 2 of the first ship displays a dialog box DL for asking the crew of the first ship whether or not to accept the displayed recommended route for the ship (S24), and accepts the acceptance of the recommended route by the crew of the first ship by pressing a button BT for accepting the acceptance (S25). The crew member may be, for example, a navigator, an engineer, or a radio operator.

[0049] When the support device 2 of the first ship receives the acceptance of the recommended route, it transmits an acknowledgment data indicating that the recommended route for the first ship has been accepted by the crew of the first ship (S26). The acknowledgment data is transmitted by being included in the AIS data. Therefore, the acknowledgment data is transmitted not only to the control C but also to It is also received by a second vessel in the vicinity of your ship.

[0050] When the support device 2 of the second vessel receives recommended route data for the first vessel from the control C (S31; processing as the recommended route acquisition unit 21), it displays the recommended route for the first vessel based on the received recommended route data in a manner indicating that acceptance has not yet been granted (i.e., before positive response data has been acquired) (S32; processing as the display control unit 23).

[0051] Thereafter, when the support device 2 of the second vessel S receives positive response data from the first vessel (S33; processing as the positive response acquisition unit 22), it switches the display of the recommended route for the first vessel to a mode indicating that acceptance has been granted (i.e., after positive response data has been acquired) (S34; processing as the display control unit 23).

[0052] Specifically, as shown in Figure 7, the electronic chart displayed on the display unit 29 of the second ship displays a recommended route for the other ship (first ship) along with a recommended route for the own ship (second ship).

[0053] The recommended route for other ships is displayed in a different manner so that it can be distinguished before (not yet ACKed) and after (ACKed) the acknowledgment data is acquired. In the example shown in the figure, the recommended route before (not yet ACKed) is acquired is displayed with a dashed line, and the recommended route after (ACKed) the acknowledgment data is acquired is displayed with a solid line.

[0054] In addition, when the recommended route for the own ship intersects with the recommended route for another ship, the arrival time (ETA: Estimated Time of Arrival) to reach the intersection point may be displayed. The arrival time is calculated by the providing device 1 and is included in the recommended route data.

[0055] In addition, the recommended routes for the own ship and for other ships may be displayed in association with a recommended ship speed, such as acceleration, deceleration, or maintaining ship speed. Furthermore, the recommended routes for the own ship and for other ships may be displayed in different colors depending on the recommended ship speed.

[0056] According to the embodiment described above, the recommended routes of other ships are displayed identifiably before and after the acquisition of the acknowledgment data, making it easy to grasp the movements of other ships. In other words, each ship S entering the controlled area A can grasp the movements of other ships as a common understanding, making it easy to prevent collisions from occurring.

[0057] In particular, in the case of ships, not all ships have the same equipment, making it difficult to determine whether other ships around one's own ship are following control tower instructions. However, by sharing recommended route data and positive response data as in this embodiment, it becomes easier to distinguish between ships that are following control tower instructions and those that are not.

[0058] As shown in Fig. 8, additional information related to the acceptance may be displayed together with the recommended route for the other ship after the acknowledgement data is acquired (ACK completed) (AD in the figure). The additional information related to the acceptance may be, for example, the time when the recommended route was accepted, the crew, and the position, and this information is included in the acknowledgement data and transmitted.

[0059] 9, a mark MK indicating that the recommended route for another ship has been accepted may be displayed in association with the location where the recommended route has been accepted. Furthermore, the mark MK may include additional information related to the acceptance of the recommended route, such as the time when the recommended route was accepted and the acceptance by the crew, etc.

[0060] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made by those skilled in the art.

[0061] In the above embodiment, the providing device 1 is provided in the control area C on land. However, the present invention is not limited to this. For example, the providing device 1 may be provided in a patrol boat or the like navigating the controlled area A.

[0062] In addition, the recommended route data and the acknowledgement data may be distributed via the Internet, etc., so that small ships that do not have an AIS can grasp the movements of large ships.

[0063] In addition, if a significant delay occurs as a result of sailing along a recommended route that includes evasive action, a land-based logistics system may be notified. [Explanation of symbols]

[0064] 1 Recommended route providing device, 10 Control unit, 11 Navigation data acquisition unit, 12 Recommended route generation unit, 19 Communication equipment, 2 Ship navigation support device, 20 Control unit, 21 Recommended route acquisition unit, 22 Acknowledgement acquisition unit, 23 Display control unit, 28 Operation unit, 29 Display unit, 3 Radar, 4 GNSS receiver, 5 Gyrocompass, 6 ECDIS, 7 AIS, 100 Ship navigation support system, 200 Ship ICT system, C Control, S Ship, A Control area

Claims

1. A recommended route providing device that transmits recommended route data for the first vessel; a first vessel navigation support device that is mounted on the first vessel and transmits affirmative response data indicating that a recommended route based on the recommended route data for the first vessel has been accepted; Installed on the second vessel, A recommended route acquisition unit that acquires recommended route data for the first vessel; an acknowledgement acquisition unit for acquiring the acknowledgement data; a display unit that identifiably displays whether a recommended route based on the recommended route data for the first vessel is before or after approval based on the affirmative response data; A second ship navigation support device comprising: A ship navigation support system comprising:

2. The recommended route data for the first vessel includes data of a recommended vessel speed associated with a recommended route, The display unit displays a recommended route based on the first vessel recommended route data together with a recommended vessel speed. The vessel navigation support system according to claim 1 .

3. The acknowledgement data includes data on the time when the recommended route was accepted; The display unit displays the time when the recommended route was accepted.

3. A ship navigation support system according to claim 1 or 2.

4. The acknowledgement data includes data of persons who accepted the recommended route; The display unit displays a person who has accepted the recommended route.

4. A ship navigation support system according to claim 1.

5. The acknowledgement data includes data on the location where the recommended route was accepted; The display unit displays the position where the recommended route is accepted.

5. A ship navigation support system according to claim 1.

6. The acknowledgement data includes data on the location where the recommended route was accepted; The display unit displays a mark indicating that the recommended route has been accepted in association with the position where the recommended route has been accepted.

6. A ship navigation support system according to claim 1.

7. The recommended route providing device is a navigation data acquisition unit that acquires vessel navigation data from the first vessel; a recommended route generating unit that generates recommended route data for the first vessel based on the vessel navigation data; Further comprising:

7. A ship navigation support system according to claim 1.

8. The recommended route acquisition unit further acquires recommended route data for a second vessel, The display unit further displays a recommended route based on the second vessel recommended route data.

8. A ship navigation support system according to claim 1.

9. the display unit displays a time required to reach a position where a recommended route based on the recommended route data for the first vessel and a recommended route based on the recommended route data for the second vessel intersect.

9. A ship navigation support system according to claim 8.

10. Transmitting recommended route data for the first vessel by a recommended route providing device; transmitting, by a first vessel navigation support device mounted on the first vessel, affirmative response data indicating that a recommended route based on the recommended route data for the first vessel has been accepted; A second vessel navigation support device mounted on the second vessel, obtaining recommended route data for the first vessel; obtaining the acknowledgement data; and identifiably displaying whether a recommended route based on the recommended route data for the first vessel is before or after acceptance based on the affirmative response data. Ship navigation support method.

11. A recommended route acquisition unit that acquires recommended route data for other ships transmitted by a recommended route providing device; an acknowledgement acquisition unit that acquires acknowledgement data that indicates that a recommended route based on the recommended route data for the other ship has been accepted and that is transmitted by a ship navigation support device installed on the other ship; a display unit that identifiably displays whether a recommended route based on the recommended route data for the other ship has not yet been approved or has been approved based on the positive response data; A ship navigation support device comprising:

12. A recommended route acquisition unit that acquires recommended route data for other ships transmitted by a recommended route providing device; an acknowledgement acquisition unit that acquires acknowledgement data transmitted by a ship navigation support device mounted on the other ship, the acknowledgement data indicating that a recommended route based on the recommended route data for the other ship has been accepted; and a display control unit that displays whether a recommended route based on the recommended route data for the other ship is before or after approval in an identifiable manner based on the positive response data; A program that makes a computer function as a

Images