JP2017076411A - Information distribution device, information distribution system and information distribution method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information distribution device, information distribution system and information distribution method that allow vessel information on a vessel to be easily acquired without having a dedicated device such as an AIS and the like provided.SOLUTION: An information distribution device comprises: a first reception unit that receives navigation information on a vessel; a second reception unit that receives location information on a portable terminal from the portable terminal to be used in a vessel different from the vessel; an information acquisition unit that acquires vessel information about the vessel satisfying a prescribed condition with a location to be indicated by the location information as a reference of at least any one vessel of the vessel indicated by the navigation information and the vessel indicated by the location information; a storage unit that can record the vessel information acquired by the information acquisition unit, and can distribute the recorded vessel information to the information acquisition unit; and a control unit that distributes the vessel information acquired by the information acquisition unit to the portable terminal or an AIS (Automatic Identification System) serving as a transmission source of the navigation information.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information distribution apparatus, an information distribution system, and an information distribution method.

In order to prevent the collision of ships, it is important to know information on ships around the ship that navigates the sea. In particular, it is important to know the ship's ship information such as the ship's position information and information relating to the movement of the ship such as the moving speed and direction of travel.
In recent years, a system called AIS (Automatic Identification System) using VHF (Very High Frequency) band wireless communication and a system for exchanging ship information between ships and between the ship and the land is also used. (Patent Document 1).

JP 2000-195000 A

  However, although AIS is obliged to be installed on vessels of 500 tons or more that do not engage in international voyages, and all passenger ships and vessels of 300 tons or more that engage in international voyages, it is obliged to install them on other small vessels. It is not done. Moreover, since AIS is very expensive, the spread to small vessels is delayed, and the small vessels do not necessarily grasp the ship information of the large vessels. On the other hand, large ships can know ship information of other large ships by AIS, but cannot know ship information of small ships through AIS. Therefore, even if an AIS is mounted on a large vessel, if the AIS is not mounted on a small vessel, the ship information cannot be obtained from each other. In some cases, it is difficult to avoid collisions and to avoid collisions.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an information distribution device and an information distribution that can easily obtain ship information of a ship without providing a dedicated device such as an AIS. It is to provide a system and an information distribution method.

  One aspect of the present invention is a first receiving unit that receives voyage information of a ship, a second receiving unit that receives position information of the mobile terminal from a mobile terminal used in a ship different from the ship, Information for acquiring ship information related to a ship that satisfies a predetermined condition with reference to the position indicated by the position information among at least one of the ship indicated by the navigation information and the ship indicated by the position information An acquisition unit, a storage unit that can record the ship information acquired by the information acquisition unit, and can deliver the recorded ship information to the information acquisition unit, and the ship information acquired by the information acquisition unit. And a control unit that distributes to a portable terminal or an AIS (automatic ship identification device) that is a transmission source of the voyage information.

  Moreover, one aspect of the present invention is the above-described information distribution device, wherein the information acquisition unit uses the position indicated by the position information as a reference to obtain information on the position of the ship that satisfies the predetermined condition. Obtained as ship information.

  Moreover, one aspect of the present invention is the above-described information distribution device, wherein the information acquisition unit includes, in addition to information related to a position of a ship that satisfies the predetermined condition, a ship that satisfies the predetermined condition. Information on the traveling direction and the moving speed is acquired as the ship information.

  One embodiment of the present invention is the above-described information distribution device, in which the mobile terminal synthesizes an image of a ship indicated by the ship information with an image captured by an imaging device incorporated in the mobile terminal. And an image display control unit to be displayed on the display unit of the portable terminal.

  One embodiment of the present invention is used in a ship different from the ship that receives AIS (automatic ship identification device), a portable terminal, and ship information on the ship on which the AIS is mounted from the AIS. An information distribution system comprising an information distribution device that receives position information of the portable terminal from the portable terminal, wherein at least one of the ship indicated by the voyage information and the ship indicated by the position information , An information acquisition unit that acquires ship information related to a ship that satisfies a predetermined condition on the basis of the position indicated by the position information, and the ship information acquired by the information acquisition unit can be recorded. A storage unit capable of distributing information to the information acquisition unit; and the ship information acquired by the information acquisition unit is distributed to the mobile terminal; A control unit to be presented on the portable terminal, and an image display for displaying the image of the ship indicated by the ship information on the display unit of the portable terminal by combining the image captured by the imaging device built in the portable terminal And an information distribution system including a control unit.

  One embodiment of the present invention is used in a ship different from the ship that receives AIS (automatic ship identification device), a portable terminal, and ship information on the ship on which the AIS is mounted from the AIS. An information distribution method comprising an information distribution device that receives position information of the portable terminal from the portable terminal, wherein the information acquisition unit is at least one of a ship indicated by the voyage information and a ship indicated by the position information. A process of acquiring ship information related to a ship that satisfies a predetermined condition on the basis of the position indicated by the position information, and the storage unit records the ship information acquired by the information acquisition unit. And the process in which the recorded ship information can be distributed to the information acquisition unit, and the control unit transmits the ship information acquired by the information acquisition unit to the portable terminal. Is information delivery method comprising the steps of delivering the AIS (Automatic Identification System) which is the source of the voyage information.

  ADVANTAGE OF THE INVENTION According to this invention, ship information of a ship can be acquired easily, without providing a dedicated apparatus, and ship information of the ship around the own ship in a small ship etc. can be known. As a result, the small ship can be safely operated even in environments where it is difficult to ensure visibility, such as when dense fog occurs or after sunset.

It is a figure showing an example of composition of information distribution system 1 in an embodiment of the present invention. It is a block diagram of the portable terminal 6 in embodiment of this invention. It is a figure which shows the flowchart of the information delivery apparatus 2 in embodiment of this invention. It is a figure which shows the flowchart of the image display process in the portable terminal 6 in embodiment of this invention. It is a figure which shows the example of a display of the display part 63 of the portable terminal 6 in embodiment of this invention. It is a figure explaining the determination method of the alarm notification zone in embodiment of this invention. It is a figure explaining the alarm determination pattern in embodiment of this invention. It is a figure explaining an example of the method of determining the alarm notification timing (time) in the embodiment of the present invention. It is a figure explaining an example of the method of determining the alarm notification timing (distance) in the embodiment of the present invention. It is a figure explaining an example of the method of determining the alarm notification timing in embodiment of this invention. It is a figure showing the alarm pattern in embodiment of this invention.

Hereinafter, an information distribution system 1 according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating a configuration example of an information distribution system 1 according to an embodiment of the present invention.
As shown in FIG. 1, an information distribution system 1 according to an embodiment of the present invention is mounted on an information distribution device 2, an AIS (Automatic Identification System) 4 mounted on a large vessel 3, and a small vessel 5. Mobile terminal 6. In the present embodiment, a case where there is one large ship 3 and one small ship 5 will be described, but the number is not limited to this number.

The information distribution device 2 and the AIS 4 mounted on the large ship 3 are connected via the network 10. In addition, the information distribution device 2 and the mobile terminal 6 mounted on the small vessel 5 are connected via the network 10. In the present embodiment, the network 10 is a network including wireless communication (VHF band or the like) and IP communication.
The AIS 4 mounted on the large ship 3 adds the ship ID as identification information of the mounted ship to the navigation information such as the position information, the traveling direction, and the moving speed of the mounted large ship. To the first receiving unit 20 or the AIS information transmission / reception conversion unit 11 via a predetermined time interval.

  The AIS information transmission / reception conversion unit 11 receives the voyage information transmitted from the AIS 4 via the network 10. The AIS information transmission / reception conversion unit 11 converts the received navigation information into data capable of IP communication, and transmits the converted navigation information to the information distribution device 2 via the network 10 by IP communication.

The mobile terminal 6 is an information terminal having a GPS (Global Positioning System) function and a communication function, such as a smartphone or a tablet terminal. The portable terminal 6 acquires the position information of the current position at a constant cycle using the GPS function. The portable terminal 6 adds the ship ID to the acquired position information and transmits it to the information distribution device 2 via the network 10.
Further, the mobile terminal 6 acquires ship information (described later) from the information distribution device 2 via the network 10. The portable terminal 6 displays the acquired ship information on the display unit 63 using AR (Augmented Reality). The portable terminal 6 is equipped with a camera that is an imaging device.

The information distribution device 2 includes a first reception unit 20, a second reception unit 21, a storage unit 22, an information acquisition unit 23, and a control unit 24.
The first reception unit 20 is connected to the information acquisition unit 23. The first receiver 20 receives the navigation information of the large vessel 3 from the AIS information transmission / reception converter 11 via the network 10. The first receiving unit 20 may directly receive the voyage information transmitted from the AIS 4 without using the AIS information transmission / reception conversion unit 11.
The second reception unit 21 is connected to the information acquisition unit 23. The second receiving unit 21 receives position information transmitted from the mobile terminal 6 via the network 10.

The information acquisition unit 23 is connected to the first receiving unit 20, the second receiving unit 21, the storage unit 22, and the control unit 24, respectively. The information acquisition unit 23 stores the navigation information received by the first reception unit 20 and the position information received by the second reception unit 21 in the storage unit 22 for each ship ID. Moreover, the information acquisition part 23 calculates | requires the advancing direction and moving speed of a ship for every ship ID.
The information acquisition unit 23 determines a ship ID that satisfies a predetermined condition on the basis of the position indicated by the position information acquired from the second reception unit 21. Here, in the present embodiment, the predetermined condition is that the ship specified by the ship ID has entered the area where the safety of the user of the mobile terminal 6 is secured centering on the position indicated by the position information. It is. However, not limited to this example, for example, the predetermined condition may be that the ship specified by the ship ID is predicted to reach the position indicated by the position information within a certain time, Any condition can be set as long as it is a condition for ensuring the safety of the user of the portable terminal 6 at sea.
The information acquisition unit 23 acquires ship information stored for each determined ship ID, adds the ship ID to the ship information, and transmits the ship information to the control unit 24. Ship information includes position information, speed information, and direction information.

The storage unit 22 can record the ship information acquired by the information acquisition unit 23 and can distribute the recorded ship information to the information acquisition unit 23.
The control unit 24 distributes the ship information acquired by the information acquisition unit 23 to the mobile terminal 6 via the network 10.

FIG. 2 is a block diagram of the mobile terminal 6 in the present embodiment.
The portable terminal 6 includes a communication unit 60, a GPS 61, a storage unit 62, a display unit 63, and an image display control unit 64.

The communication unit 60 is connected to the image display control unit 64. The communication unit 60 communicates with the information distribution device 2 via the network 10.
The GPS 61 acquires its own position information.
The storage unit 62 is connected to the image display control unit 64. The storage unit 62 includes a ROM, a RAM, a flash memory, a hard disk device, and the like, and stores programs executed by the image display control unit 64, data, and the like.
The display unit 63 is connected to the image display control unit 64. The display unit 63 includes a liquid crystal display device and the like, and displays an arbitrary image.

The image display control unit 64 executes the program stored in the storage unit 62. The image display control unit 64 periodically acquires position information indicating the current position of the ship from the GPS 61, and transmits the acquired position information to the information distribution device 2 via the communication unit 60.
The image display control unit 64 receives the ship information from the information distribution device 2 via the communication unit 60, and forms a symbol indicating the moving speed and the traveling direction of the own ship and a nearby ship based on the received ship information. To do. The image display control unit 64 displays the formed symbol on the display unit 63. Moreover, the image display control part 64 produces | generates the alert notification zone (guard zone) of the own ship. The image display control unit 64 determines whether or not another ship has entered the generated alarm notification zone (that is, determines whether or not the above-described predetermined condition has been satisfied). An alarm is output to 63.

Next, the operation of the information distribution apparatus 2 will be described with reference to FIG. FIG. 3 is a diagram illustrating a flowchart of the information distribution apparatus 2 in the present embodiment.
In step S <b> 101, the first receiving unit 20 receives the voyage information to which the ship ID is added from the AIS 4 via the network 10.
In step S <b> 102, the second reception unit 21 receives position information to which the ship ID is added from the mobile terminal 6 via the network 10.

In step S <b> 103, the information acquisition unit 23 stores the navigation information received by the first reception unit 20 and the position information received by the second reception unit 21 in the storage unit 22 for each ship ID.
In step S104, the information acquisition part 23 calculates | requires movement information, such as the advancing direction and moving speed of a ship, for every ship ID. For example, the information acquisition unit 23 determines whether information on the same ship ID has been received in the past. When the information of the same ship ID has been received in the past, the information acquisition unit 23 determines the traveling direction of the ship from the current position and the previous position in the ship to which the ship ID received in the past is assigned. The movement speed of the ship is calculated by determining and dividing the distance between the previous position and the current position by the time difference. However, when the navigation information includes the movement information of the large vessel 3, the information acquisition unit 23 obtains only the movement information of the small vessel 5.

  In step S <b> 105, the information acquisition unit 23 extracts a ship ID that satisfies a predetermined condition on the basis of the position indicated by the position information acquired from the second reception unit 21. The information acquisition unit 23 determines, for example, that the predetermined condition is satisfied when the relative position of the other ship is equal to or less than a predetermined threshold based on the position indicated by the position information acquired from the second reception unit 21, The ship ID of the determined ship is extracted. On the other hand, the information acquisition unit 23 determines that the predetermined condition is not satisfied when the relative position of another ship exceeds a predetermined threshold with reference to the position indicated by the position information acquired from the second reception unit 21. The ship ID of the determined ship is not extracted. The threshold is, for example, a distance at which a ship corresponding to the ship ID acquired by the information acquisition unit 23 may be affected by another ship.

In step S <b> 106, the information acquisition unit 23 generates ship information for each extracted ship ID, and outputs the generated ship information to the control unit 24.
In step S <b> 107, the control unit 24 transmits ship information to the portable terminal 6 via the network 10.

  Next, image display processing in the mobile terminal 6 mounted on the small vessel 5 will be described with reference to FIG. FIG. 4 is a diagram showing a flowchart of image display processing in the portable terminal 6 in the present embodiment. This image display process is to display the positional relationship between the own ship and the nearby ship on the display unit 63, and is repeatedly performed by the image display control unit 64. Note that the mobile terminal 6 activates the above-described application in accordance with an operation performed by the occupant, and performs the following image display processing based on a procedure incorporated in the application.

In step S <b> 201, the image display control unit 64 receives ship information from the information distribution device 2 via the communication unit 60.
In step S202, the image display control unit 64 generates, for each ship ID, a symbol indicating the own ship and the other ship and a symbol indicating the moving speed and the traveling direction of the own ship and the other ship based on the received ship information. To do. For example, the image display control unit 64 extracts the moving speed from the received ship information, and generates an index indicating the extracted moving speed by the length of the arrow. In addition, the image display control unit 64 extracts a traveling direction from the received ship information, and generates an index indicating the extracted traveling direction in the direction of the arrow.

  In step S <b> 203, the image display control unit 64 determines an alarm notification zone centering on the own ship. The alarm notification zone is, for example, an annular region that is determined based on the current position of the ship, the moving speed, and the traveling direction. The method for determining the alarm notification zone will be described later.

  In step S <b> 204, the image display control unit 64 displays a symbol indicating the own ship on the display unit 63 at a position indicated by the position information of the small ship 5 that is the own ship. Further, the image display control unit 64 extracts position information for each ship ID from the received ship information, and displays a symbol indicating another ship corresponding to the ship ID at the position indicated by the position information. Moreover, the image display control unit 64 arranges and displays the index (arrow) generated in step S202 for each ship ID on the displayed symbols indicating the own ship and other ships. Further, the image display control unit 64 displays the alarm notification zone determined in step S203 on the display unit 63.

  In step S205, the image display control unit 64 determines whether another ship has entered the generated alarm notification zone. When another ship has entered the alarm notification zone, the image display control unit 64 proceeds to step S206 and outputs an alarm to the portable terminal 6. On the other hand, when another ship does not enter the alarm notification zone, the image display control unit 64 does not output an alarm to the mobile terminal 6.

(Display screen of display unit 63)
Next, a display screen displayed on the display unit 63 by the image display control unit 64 will be described. FIG. 5 is a diagram illustrating a display example of the display unit 63 of the mobile terminal 6 in the present embodiment.
As shown in FIG. 5, the image display control unit 64 displays two screens A and B on the display unit 63.

  Screen A is a screen showing an example of a display screen when a marine landscape photographed by a camera mounted on mobile terminal 6 from its own ship is displayed on a video monitor. In the screen A, the image display control unit 64 synthesizes an image of the other ship on the display unit 63 and displays the seascape photographed by the camera function. The image of the other ship displayed on the screen A is generated from the ship information described above, and the image processing therefor may be performed by either the information distribution device 2 or the portable terminal 6. Circular symbols Y1 and Y2 shown on screen A indicate other ships that exist in the direction in which the camera is directed. In addition, the image display control unit 64 changes the colors of the circular symbols Y1 and Y2 indicating other ships according to the relative position from the position of the own ship. For example, when the ship indicated by the circular symbol Y1 exists at a distance close to the own ship, the image display control unit 64 displays the color of the circular symbol Y1 in red. Further, when the ship indicated by the circular symbol Y2 exists at a sufficiently far distance from the own ship, the image display control unit 64 displays the color of the circular symbol Y2 in green. You may change the magnitude | size of the symbols Y1 and Y2 according to the distance between the own ship and another ship.

  The screen B is a screen on which the image display control unit 64 displays the small ship 5 of the own ship, the small ship and the large ship 3 of the other ship, and the alarm notification zone on the map. A triangular symbol indicated by P on the screen B indicates the position of the small vessel 5 of the own vessel. A triangular symbol indicated by Y on the screen B indicates the position of a small vessel or a large vessel 3 of another vessel. A circular symbol indicated by X on the screen B indicates an alarm notification zone. The above-described arrows indicating the traveling direction and the moving speed are displayed as vectors (not shown) drawn from the Y and X symbols indicating the ship. A product advertisement is displayed on screen C in FIG.

(How to determine the alarm notification zone)
Next, a method for determining the alarm notification zone will be described. FIG. 6 is a diagram illustrating a method for determining an alarm notification zone in the present embodiment. In each drawing used for the following description, the x axis and the y axis that are orthogonal to each other in the space shown in each figure are defined and described. X1 indicates an alarm notification zone determined when the own ship indicated by P (hereinafter referred to as “own ship P”) is at the moving speed V1. X2 indicates an alarm notification zone determined when the own ship P is at the moving speed V2. X3 indicates an alarm notification zone determined when the own ship P is at the moving speed V3. It is assumed that the ship P is moving in the y direction. Further, the moving speed increases in the order of V1, V2, and V3.

The image display control unit 64 deforms the alarm notification zone according to the moving speed of the own ship P. Specifically, the image display control unit 64 draws a circle (ellipse) in which the alarm notification zone is expanded in the forward direction (y direction) as the moving speed of the ship P increases, and displays the circle on the display unit 63. . Further, the image display control unit 64 draws a circle (ellipse) in which the alarm notification zone is reduced in the forward direction (−y direction) and displays the circle on the display unit 63 as the moving speed of the ship P decreases.
For example, the image display control unit 64 refers to an alarm notification table stored in advance in the storage unit 62, and extends in the forward direction corresponding to the moving speed of the own ship P (hereinafter referred to as "forward distance"). Get H. The alarm notification table is a table in which the moving speed of the own ship P is associated with the forward distance for each moving speed of the own ship P.

(Alarm judgment pattern)
As described above, the image display control unit 64 outputs an alarm to the mobile terminal 6 when another ship enters the alarm notification zone in step S205. However, even if another ship intrudes into the alarm notification zone, the image display control unit 64 does not output an alarm when there is no possibility of collision between the own ship and the other ship. A determination pattern for determining whether or not the image display control unit 64 outputs a warning when another ship enters the warning notification zone will be described below.

  FIG. 7 is a diagram illustrating a determination pattern for determining whether to output an alarm in the present embodiment. A solid circle shown in FIG. 7 is an alarm notification zone, and shows a case where the image display control unit 64 detects an intrusion into the alarm notification zone in another ship and outputs an alarm to the mobile terminal 6. A broken-line circle shown in FIG. 7 is an alarm notification zone, and the image display control unit 64 does not output an alarm to the mobile terminal 6 regardless of whether or not an intrusion into the alarm notification zone in another ship is detected. Indicates. In addition, the triangular symbol indicates a ship that is sailing. A square symbol indicates a berthed vessel.

Pattern 1 shown in FIG. 7 is a pattern in which the partner ship (another ship) has entered the alarm notification zone when the moving speed is faster than the own ship. In pattern 1, the image display control unit 64 is either in the case of entering from the rear (100), the case of the partner ship entering from the front of the own ship (101), or the case of crossing the front (102). An alarm is issued to the portable terminal 6.
However, when the other ship crosses behind the own ship (103), the risk of collision between the own ship and the other ship is very low, and therefore the image display control unit 64 does not output an alarm to the mobile terminal 6.

  Pattern 2 shown in FIG. 7 is a pattern in which, when the partner ship (another ship) has a slower moving speed than the own ship, the own ship approaches the partner ship and enters the alarm notification zone. Pattern 2 is the opposite of Pattern 1 when entering from behind the partner ship (100A). Similar to Pattern 1, when the other ship enters from the front of the ship (101A), In any case of crossing the front (102A), the image display control unit 64 issues an alarm to the portable terminal 6. However, when the other ship crosses behind the own ship (103A), the risk that the own ship and the other ship collide is very low, and therefore the image display control unit 64 does not issue an alarm to the portable terminal 6.

Pattern 3 shown in FIG. 7 is a case where the partner ship enters the alarm notification zone by passing behind the ship. In the case of pattern 3, since the risk of collision between the own ship and the partner ship is very low, the image display control unit 64 does not issue an alarm to the mobile terminal 6.
Pattern 4 shown in FIG. 7 is a case where the partner ship enters the alarm notification zone by approaching the partner ship that is anchored. In the case of Pattern 4, there is no partner ship anchored on the route of the ship, and the risk of collision between the ship and the partner ship is very low, so the image display control unit 64 alerts the mobile terminal 6. Do not give out.

(Alarm notification timing)
Next, the timing (hereinafter referred to as “alarm notification timing”) at which the image display control unit 64 issues an alarm to the portable terminal 6 when the partner ship enters the alarm notification zone will be described. As a method of determining the alarm notification timing at which the image display control unit 64 outputs an alarm to the portable terminal 6, for example, a method of determining from the time when another ship approaches the own ship, and a relative distance between the own ship and the other ship There is a way to decide.

  First, a method for determining the alarm notification timing from the time when another ship approaches the ship will be described. FIG. 8 is a diagram illustrating a method for determining the alarm notification timing from the time when another ship approaches the ship. When the image display control unit 64 detects that there is a possibility of a collision after 5 minutes, for example, from the moving speed and traveling direction of the other ship and the own ship, a circle that may cause a collision after about 5 minutes, about 4 minutes Determine the circle that will cause a collision later, and the circle that may cause a collision after approximately 3 minutes. In addition, the area | region of (1) shown in FIG. 8 is an area | region where another ship and the own ship may have a collision within about 4 minutes or more and about 5 minutes. The area (2) shown in FIG. 8 is an area where the other ship and the own ship may collide within about 3 minutes to 4 minutes. The area (3) shown in FIG. 8 is an area where the other ship and the own ship may collide within approximately 3 minutes.

The image display control unit 64 outputs an alarm to the mobile terminal 6 only once when another ship enters the alarm notification zone and the position of the other ship exists in the area (1) shown in FIG.
The image display control unit 64 outputs an alarm to the mobile terminal 6 at a predetermined cycle (alarm notification timing) when the position of the other ship exists in the area (2) shown in FIG. Further, for example, when the image display control unit 64 outputs an alarm to the mobile terminal 6, if an operation indicating that the alarm is output is performed on the mobile terminal 6, the next time The alarm notification timing is extended after 30 seconds, for example. On the other hand, when the operation indicating that the alarm is output is not performed, the image display control unit 64 outputs an alarm to the mobile terminal 6 according to a predetermined cycle.

  When the position of the other ship exists in the area (3) shown in FIG. 8, the image display control unit 64 has the same alarm notification timing as when the position of the other ship exists in the area (2) shown in FIG. 8. At the same time, an alarm is output to the mobile terminal 6, and at the same time, an alarm sound that causes danger is output to the mobile terminal 6. The alarm sound that makes you feel dangerous is a loud sound that makes you want to close an ear of about 100 dB, for example.

Next, a method for determining the alarm notification timing from the relative distance between the ship and the other ship will be described. FIG. 9 is a diagram illustrating a method for determining the alarm notification timing from the relative distance between the own ship and another ship.
As shown in FIG. 9, the image display control unit 64 determines two circles having different radii in the area of the alarm notification zone. The radius is determined in advance. For example, the radius of the circle A shown in FIG. 9 corresponds to a distance at which the ship may collide with another ship after approximately 4 minutes. Further, the radius of the circle B corresponds to a distance that may cause a collision between the own ship and another ship after about 3 minutes.

The image display control unit 64 outputs an alarm to the portable terminal 6 only once when another ship enters the alarm notification zone and the position of the other ship exists in the area (1) shown in FIG.
The image display control unit 64 outputs an alarm to the mobile terminal 6 at a predetermined cycle (alarm notification timing) when the position of the other ship exists in the area (2) shown in FIG. Further, for example, when the image display control unit 64 outputs an alarm to the mobile terminal 6, if an operation indicating that the alarm is output is performed on the mobile terminal 6, the next time The alarm notification timing is extended after 30 seconds, for example. On the other hand, when the operation indicating that the alarm is output is not performed, the image display control unit 64 outputs an alarm to the mobile terminal 6 according to a predetermined cycle.

  When the position of the other ship exists in the area (3) shown in FIG. 9, the image display control unit 64 has the same alarm notification timing as when the position of the other ship exists in the area (2) shown in FIG. 9. At the same time, an alarm is output to the mobile terminal 6, and at the same time, an alarm sound that causes danger is output to the mobile terminal 6. The alarm sound that makes you feel dangerous is a loud sound that makes you want to close an ear of about 100 dB, for example.

  FIG. 10 is a diagram for explaining the alarm notification timing when there are a plurality of other ships in the method for determining the alarm notification timing from the relative distance between the own ship and the other ship. The alarm notification timing is the same as that shown in FIG. However, for example, as illustrated in FIG. 10, when there are a plurality of other ships in (1), the image display control unit 64 does not determine the alarm notification timing for each other ship, and collects one alarm notification timing. That is, instead of outputting three alarms, an alarm is output only once.

(Alarm pattern)
Next, a pattern in which the image display control unit 64 outputs an alarm to the mobile terminal 6 (hereinafter referred to as “alarm pattern”) will be described. FIG. 11 is a diagram showing an alarm pattern.
The alarm pattern shown in FIG. 11A is a pattern for displaying a pop-up message and outputting sound. The image display control unit 64 displays a pop-up message on the display unit 63 indicating that another ship is approaching. Further, the image display control unit 64 outputs a signal indicating that another ship is approaching or a signal indicating an alarm sound to a sound output unit mounted on the mobile terminal 6 (not shown). Thereby, the sound or the warning sound is output from the sound output unit. The sound output unit is, for example, a speaker mounted on a smartphone.

  The alarm pattern shown in FIG. 11B is a pattern obtained by adding a background flash to the alarm pattern shown in FIG. The background flash is performed, for example, by causing the image display control unit 64 to display or hide the display so that a specific display blinks or lights on the display unit 63.

The alarm pattern shown in FIG. 11C is a pattern obtained by adding vibration of the mobile terminal 6 to the alarm pattern shown in FIG. The vibration is performed, for example, when the image display control unit 64 applies a voltage to the vibrator mounted on the portable terminal 6 and vibrates the vibrator with a predetermined vibration pattern. The vibrator is a vibration element that generates a vibration having a frequency corresponding to an applied electrical condition.
The alarm pattern shown in FIG. 11D is a pattern obtained by adding a background flash to the alarm pattern shown in FIG.

  As described above, according to the present embodiment, an occupant of a small vessel mounts or brings a portable terminal 6 such as a smartphone or a tablet terminal on the small vessel 5 and activates a predetermined application. Without providing a dedicated device, ship information of a ship can be easily acquired, and position information of other ships can be displayed on the display unit 63 of the portable terminal 6 based on the ship information. Further, the image display control unit 64 displays two screens A and B on the display unit 63, and on the screen A, displays a marine landscape photographed by the camera function on a video monitor. Thereby, a small ship can be safely operated even in environments where it is difficult to ensure visibility, such as when fog is generated or after sunset.

  Further, according to the present embodiment, the image display control unit 64 determines an alarm notification zone, and outputs an alarm to the mobile terminal 6 when another ship enters the alarm notification zone. Thereby, even when another ship approaches the own ship, a contact accident with the large ship can be prevented in advance by causing the own ship, which is a small ship with a small turn, to perform avoidance action in advance.

  Moreover, according to this embodiment, the image display control part 64 expands or reduces the front distance of an alarm notification zone according to the moving speed of the own ship. For example, as the moving speed of the ship becomes higher, the image display control unit 64 increases the distance ahead of the alarm notification zone. Thus, when another ship enters the warning notification zone, the time for the other ship to reach the position of the own ship after outputting an alarm on the display unit 63 of the portable terminal 6 regardless of the moving speed of the own ship. Can be kept constant. Therefore, the crew member of the ship can secure the time required for the ship to avoid a collision with another ship regardless of the moving speed of the ship.

  Further, according to the present embodiment, when another ship enters the alarm notification zone, the image display control unit 64 changes the alarm notification timing according to the area in the alarm notification zone where the other ship exists. For example, the cycle of outputting an alarm to the mobile terminal 6 is shortened as another ship approaches the ship. Further, the image display control unit 64 can output an alarm sound at the same time as outputting an alarm. Thereby, the passenger | crew of the own ship can recognize that the other ship is approaching the own ship, without confirming another ship visually.

  Further, according to the present embodiment, the image display control unit 64 can output an alarm using vibration, alarm sound, background fresh, or the like when outputting an alarm to the mobile terminal 6. Therefore, even when the occupant of the own ship is away from the mobile terminal 6, it can recognize that another ship is approaching the own ship by sound, light, vibration, etc., and thus immediately take an avoidance action. Can do.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and modifications, and various modifications, corrections, substitutions, and additions are possible without departing from the spirit of the present invention. Etc. are possible.
In the above-described embodiment, the image display control unit 64 of the mobile terminal 6 determines whether another ship has entered the alarm notification zone, but the present embodiment is not limited to this. For example, the information distribution device 2 may determine whether another ship has entered the alarm notification zone.

In the above-described embodiment, the information distribution device 2 transmits the generated ship information only to the portable terminal 6 via the network 10. However, the present invention is not limited to this, and the generated ship information is carried via the network 10. You may transmit to the terminal 6 and AIS4 of the large sized ship 3. FIG. For example, the information distribution device 2 transmits the generated ship information to the AIS information transmission / reception conversion unit 11 by IP communication of the network 10. The AIS information transmission / reception conversion unit 11 transmits the received ship information to the AIS 4 using the VHF band wireless communication of the network 10 and displays the position information of the small ship 5 on the display screen of the AIS 4.
The AIS 4 can also directly obtain the ship information generated by the information distribution device 2 from the IP communication of the network 10 and display the position information of the small ship 5 on the display screen.
Thus, the AIS 4 can display the position information of the small vessel 5 on its own display screen. Therefore, the occupant of the large vessel 3 can grasp the position of the small vessel 5 on which the AIS 4 is not mounted.
Further, for example, the information distribution device 2 may distribute the position information received from the mobile terminal 6 of the own ship to the mobile terminal of another ship. Thereby, a position can be grasped | ascertained between small ships, and it becomes possible to avoid the collision etc. of small ships.

1 Information Distribution System 2 Information Distribution Device 3 Large Ship 4 AIS
DESCRIPTION OF SYMBOLS 5 Small ship 6 Portable terminal 10 Network 11 AIS information transmission / reception conversion part 20 1st receiving part 21 2nd receiving part 22, 62 Storage part 23 Information acquisition part 24 Control part 60 Communication part 61 GPS
63 Display unit 64 Image display control unit

Claims (6)

A first receiver for receiving ship voyage information;
A second receiving unit that receives position information of the mobile terminal from a mobile terminal used in a ship different from the ship;
Ship information on a ship that satisfies a predetermined condition with reference to the position indicated by the position information, out of at least one of the ship indicated by the voyage information and the ship indicated by the position information. An information acquisition unit;
A storage unit capable of recording the ship information acquired by the information acquisition unit, and capable of distributing the recorded ship information to the information acquisition unit;
A control unit that distributes the ship information acquired by the information acquisition unit to the mobile terminal or an AIS (automatic ship identification device) that is a transmission source of the voyage information;
An information distribution apparatus comprising: The information acquisition unit
The information distribution apparatus according to claim 1, wherein information relating to a position of a ship that satisfies the predetermined condition is acquired as the ship information on the basis of the position indicated by the position information. The information acquisition unit
The information distribution apparatus according to claim 2, wherein in addition to information related to a position of a ship that satisfies the predetermined condition, information related to a traveling direction and a moving speed of the ship that satisfies the predetermined condition is acquired as the ship information. . The portable terminal is
An image display control unit configured to synthesize an image of the ship indicated by the ship information with an image captured by an imaging device built in the mobile terminal and display the image on the display unit of the mobile terminal;
The information delivery apparatus according to any one of claims 1 to 3. AIS (automatic ship identification device), portable terminal, and the position of the portable terminal from the portable terminal that receives voyage information of the ship on which the AIS is mounted from the AIS and is used in a ship different from the ship An information distribution system comprising an information distribution device for receiving information,
Ship information on a ship that satisfies a predetermined condition with reference to the position indicated by the position information, out of at least one of the ship indicated by the voyage information and the ship indicated by the position information. An information acquisition unit;
A storage unit capable of recording the ship information acquired by the information acquisition unit, and capable of distributing the recorded ship information to the information acquisition unit;
A controller that distributes the ship information acquired by the information acquisition unit to the mobile terminal, and causes the mobile terminal to present the ship information;
An image display control unit configured to synthesize an image of a ship indicated by the ship information with an image captured by an imaging device incorporated in the mobile terminal and display the image on the display unit of the mobile terminal;
Including information distribution system. AIS (automatic ship identification device), portable terminal, and the position of the portable terminal from the portable terminal that receives voyage information of the ship on which the AIS is mounted from the AIS and is used in a ship different from the ship An information distribution method comprising an information distribution device for receiving information,
The information acquisition unit relates to a ship that satisfies a predetermined condition based on a position indicated by the position information, out of at least one of the ship indicated by the voyage information and the ship indicated by the position information. The process of obtaining ship information;
A process in which a storage unit can record the ship information acquired by the information acquisition unit and can deliver the recorded ship information to the information acquisition unit;
A process in which the control unit distributes the ship information acquired by the information acquisition unit to the mobile terminal or an AIS (automatic ship identification device) that is a transmission source of the voyage information;
Information delivery method including

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