WO2021176942A1 - Moving object trajectory display device, moving object trajectory display method, and moving object trajectory display program - Google Patents

Abstract

[Problem] To implement a more effective display. [Solution] This moving object trajectory display device comprises: a position acquisition unit that acquires position information of a moving object; and a display processing unit that performs processing to display a plurality of lines as the trajectory of the moving object on the basis of the time-series position information acquired by the position acquisition unit, the plurality of lines each having a different display form and having directions of extension which are in alignment, and each being in a fixed order of placement relative to the direction of travel of the moving object.

Description

Moving body locus display device, moving body locus display method and moving body locus display program

The present invention relates to a moving body locus display device, a moving body locus display method, and a moving body locus display program.

For example, Patent Document 1 (Japanese Unexamined Patent Publication No. 2016-217939) discloses the following track display device. That is, the position information of the ship is acquired and the depth of the water bottom is calculated for each unit time. The display color corresponding to the depth of the water bottom is set as the display color of the track in the unit time in which the depth is calculated. In addition, the beam radius indicating the detection range of the ultrasonic beam on the bottom of the water where the depth is calculated is estimated, and the display width proportional to the beam radius is set as the display width of the track in the unit time when the depth of the bottom is calculated. Will be done. The track in each unit time is sequentially drawn with the display color and display width set in each unit time.

Japanese Unexamined Patent Publication No. 2016-217939

In a device that displays the trajectory of such a moving object, a technology that can perform more effective display is desired.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a moving body locus display device, a moving body locus display method, and a moving body locus display program capable of performing more effective display. Is.

In order to solve the above problems, the moving body locus display device according to a certain aspect of the present invention is based on a position acquisition unit that acquires position information of a moving body and the time-series position information acquired by the position acquisition unit. A display processing unit that performs processing for displaying a plurality of lines having different display modes, along the respective stretching directions, and having a fixed arrangement order with respect to the traveling direction of the moving body, as the locus of the moving body. To be equipped.

With such a configuration, for example, the direction of the moving body locus can be represented by a line without an arrow, so that the visibility of the display object in which a plurality of moving body loci intersect or are densely packed can be easily improved. Therefore, more effective display can be performed.

According to the present invention, more effective display can be performed.

FIG. 1 is a diagram showing a configuration of a moving body locus display device according to an embodiment of the present invention. FIG. 2 is a diagram showing an example of a display screen by the moving body locus display device according to the embodiment of the present invention. FIG. 3 is a diagram showing an example of a moving body locus in a comparative example of the moving body locus display device according to the embodiment of the present invention. FIG. 4 is a diagram showing an example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention. FIG. 5 is a diagram showing an example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention. FIG. 6 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention. FIG. 7 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention. FIG. 8 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention. FIG. 9 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention. FIG. 10 is a diagram showing a configuration of a modified example of the moving body locus display device according to the embodiment of the present invention. FIG. 11 is a diagram showing an example of a display screen according to a modified example of the moving body locus display device according to the embodiment of the present invention. FIG. 12 is a flowchart defining an operation procedure when the moving body locus display device according to the embodiment of the present invention registers the display setting of the screen.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated. In addition, at least a part of the embodiments described below may be arbitrarily combined.

FIG. 1 is a diagram showing a configuration of a moving body locus display device according to an embodiment of the present invention.

With reference to FIG. 1, the moving object locus display device 101 includes one or a plurality of sensors 11, an information creation unit 12, a display processing unit 13, a storage unit 14, and a monitor unit 15. The storage unit 14 is, for example, a non-volatile memory. The sensor 11, the storage unit 14, and the monitor unit 15 may be provided outside the moving object locus display device 101. FIG. 1 shows, as an example, a configuration in which the moving object locus display device 101 includes three sensors 11a, 11b, and 11c.

The moving body locus display device 101 is installed, for example, in the steering seat of a ship, and performs a process of displaying information about the own ship.

The information creation unit 12 acquires the position information of the moving object as the position acquisition unit.

More specifically, the sensor 11a detects the position of the own ship and outputs the position information indicating the detected position to the information creation unit 12.

Further, for example, the information creation unit 12 acquires state information indicating a state according to the position of a moving object, for example, speed information or environmental information, as a state acquisition unit.

More specifically, the sensor 11b detects the speed of the own ship and outputs speed information indicating the detected speed to the information creation unit 12.

The sensor 11c, for example, periodically or irregularly acquires environmental information regarding the environment of the area where the own ship is located, and outputs the acquired environmental information to the information creation unit 12. Specifically, the environmental information indicates at least one of water temperature, draft, depth, salinity, current velocity, current direction, and the like.

For example, the information creation unit 12 regularly or irregularly creates own ship information in which the latest position information, the latest speed information, and the latest environmental information are associated with each other, and stores the information in the storage unit 14. Further, the information creation unit 12 creates the track information of the own ship based on the time-series own ship information stored in the storage unit 14, and stores it in the storage unit 14.

Note that in FIG. 1, either one of the sensors 11b and 11c may not be provided.

FIG. 2 is a diagram showing an example of a display screen by the moving body locus display device according to the embodiment of the present invention.

With reference to FIG. 2, the display processing unit 13 refers to the information stored in the storage unit 14 and performs a process of displaying the current position and track of the own ship. More specifically, the display processing unit 13 superimposes the symbol Ic1 of the current position of the own ship, the symbol R1 of the wake, and the like on the nautical chart based on the own ship information and the wake information stored in the storage unit 14. Is displayed on the monitor unit 15.

[Task]
FIG. 3 is a diagram showing an example of a moving body locus in a comparative example of the moving body locus display device according to the embodiment of the present invention.

With reference to FIG. 3, in the comparative example, the locus and the traveling direction of the moving body are represented by the combination of lines with arrows. In the case of such a display method, the display tends to be complicated as the number of moving objects to be displayed increases.

For example, unlike land, which targets roads with lanes, ships tend to have different trajectories for each ship, but because they follow similar navigation routes, each locus tends to be dense and visibility is improved. Easy to drop.

Therefore, the moving body locus display device according to the embodiment of the present invention solves the above-mentioned problems by the following configurations and operations.

FIG. 4 is a diagram showing an example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention.

With reference to FIG. 4, the moving body locus display device 101 displays a plurality of types of lines as moving body loci, and the arrangement of each line is specified in advance.

More specifically, the display processing unit 13 has different display modes as the locus of the moving object based on the time-series position information acquired by the information creation unit 12, for example, based on the track information, and each extension Performs a process of displaying a plurality of lines that are in the same direction and have a fixed arrangement order with respect to the traveling direction of the moving body. For example, the moving object is a ship and the trajectory is the wake of the ship.

Specifically, in the example shown in FIG. 4, the filled line 31 is arranged on the left side with respect to the traveling direction of the own ship, and the unfilled line 32 is arranged on the right side with respect to the traveling direction of the own ship. Has been done.

That is, the line symbol L1 indicates that the traveling direction of the own ship is the direction to the right side of the screen. The line symbol L2 indicates that the traveling direction of the own ship is the direction to the left side of the screen.

FIG. 5 is a diagram showing an example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention. FIG. 5 shows a moving body locus similar to each moving body locus shown in FIG. The definition of the line is the same as the example shown in FIG.

With reference to FIG. 5, in the moving body locus display device 101, the trajectories of the four ships, including these directions, are represented by line symbols L11 to L14 without arrows, as compared with the example shown in FIG. , Visibility can be improved.

FIG. 6 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention.

With reference to FIG. 6, the display processing unit 13 changes the display mode of the line based on the state information acquired by the information creation unit 12.

In the example shown in FIG. 6, in the line symbol L21, the hatched lines 41 to 43 are arranged on the left side with respect to the traveling direction of the own ship. In addition, lines 44 to 46 without hatching are arranged on the right side with respect to the traveling direction of the own ship.

Lines 41 to 43 indicate the depth around the ship, the coarser the hatching, the shallower the hatching, and the finer the hatching, the deeper. Lines 44 to 46 indicate the water temperature around the ship, and the lighter the temperature, the lower the water temperature, and the darker the water temperature, the higher the temperature.

Note that the display processing unit 13 may be configured to display a plurality of lines having different colors from each other as a display mode.

More specifically, lines 41 to 43 and lines 44 to 46 may be represented by different system colors. For example, in the line symbol L21, the line on the left side with respect to the traveling direction of the own ship is displayed in a blue color, indicating the depth around the own ship. The lighter the color, the lower the color, and the darker the color, the higher the depth. In addition, the line on the right side of the direction of travel of the ship is displayed in a reddish color, indicating the water temperature around the ship. The lighter the color, the lower the color, and the darker the color, the higher the temperature.

Further, also in the example shown in FIG. 4, the line 31 and the line 32 may be represented by different colors.

Further, the display processing unit 13 is not limited to the blue system and the red system, and may display using another color system, or may display each color without unifying the system.

Thus, the different depths are represented by the lines 41, 42, 43 of the line symbol L21, and the different water temperatures are represented by the lines 44, 45, 46 of the line symbol L21.

As a result, in addition to the direction of the trajectory of the ship, the state at each position of the ship can be further displayed, and a screen with improved visibility can be displayed.

Note that the information creation unit 12 may be configured to acquire state information indicating at least one of the bow direction of the own ship, the reaction amount in fish school detection, and the time as the state acquisition unit. In this case, the display processing unit 13 can change the display mode of the line based on the bow direction of the own ship, the reaction amount in the fish school detection, or the time. For example, the display processing unit 13 can change the color of the line according to the time zone.

FIG. 7 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention.

The display processing unit 13 is not limited to the above, and may be configured to display a plurality of lines having different display modes of other types.

With reference to FIG. 7, for example, the display processing unit 13 performs a process of displaying a plurality of lines having different shapes as a display mode, and changes the display mode in the line.

Specifically, the display processing unit 13 changes, for example, the interval between the dotted lines on the left line with respect to the traveling direction of the own ship according to the state indicated by the state information, and the display processing unit 13 is on the right side with respect to the traveling direction of the own ship. The line changes the score of the chain line according to the state indicated by the state information.

For example, in the line symbol L22, the line on the left side with respect to the traveling direction of the own ship indicates the depth around the own ship, the smaller the interval between the dotted lines is, the shallower it is, and the larger the interval between the dotted lines is, the deeper it is. Further, in the line symbol L21, the line on the right side with respect to the traveling direction of the own ship indicates the water temperature around the own ship, the smaller the score of the chain line, the lower the score, and the larger the score of the chain line, the higher the temperature.

In the example shown in FIG. 7, different depths are represented by lines 51 and 52 of the line symbol L22, and different water temperatures are represented by lines 53 and 54 of the line symbol L22.

FIG. 8 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention.

With reference to FIG. 8, the display processing unit 13 may be configured to display, for example, a plurality of lines having different thicknesses as a display mode.

Specifically, for example, the display processing unit 13 displays, as the line symbol L23, the line on the left side with respect to the traveling direction of the own ship is thick and the line on the right side with respect to the traveling direction of the own ship is thin.

FIG. 9 is a diagram showing another example of displaying a moving body locus by the moving body locus display device according to the embodiment of the present invention.

The display processing unit 13 is not limited to the configuration of displaying double lines, but may be configured to display triple lines, quadruple lines, or further multiple lines.

That is, the display processing unit 13 may be configured to perform a process of displaying a line for each state information, that is, a process of displaying a number of lines according to the number of types of states indicated by the state information.

Specifically, for example, referring to FIG. 9, the display processing unit 13 displays the line symbol L24 composed of three types of lines 61 to 63 having different thicknesses.

[Modification example]
The moving body trajectory display device 101 may be configured to display the track of another ship.

FIG. 10 is a diagram showing a configuration of a modified example of the moving body locus display device according to the embodiment of the present invention.

With reference to FIG. 10, a modified example of the moving body locus display device 101 further includes a communication unit 10 as compared with the moving body locus display device 101 shown in FIG.

The communication unit 10 receives the own ship information created by another ship and transmitted regularly or irregularly, which is the same as the above-mentioned own ship information, and outputs the information to the information creation unit 12.

The information creation unit 12 stores the own ship information of another ship (hereinafter, also referred to as other ship information) received from the communication unit 10 in the storage unit 14. The information creation unit 12 creates wake information of another ship based on the time-series other ship information stored in the storage unit 14, and stores it in the storage unit 14.

A modified example of the moving body trajectory display device 101 has a configuration in which, instead of the own ship information of another ship, the track information created by the other ship is received and stored in the storage unit 14, which is the same as the above-mentioned track information. There may be.

Further, the modified example of the moving body locus display device 101 may be configured not to include the communication unit 10 and to create wake information of another ship based on the measurement result of its own sensor or the like.

FIG. 11 is a diagram showing an example of a display screen according to a modified example of the moving body locus display device according to the embodiment of the present invention.

With reference to FIG. 11, the display processing unit 13 refers to the information stored in the storage unit 14 and displays the current position and wake of the own ship, the current position and wake of another ship, and the like. More specifically, the display processing unit 13 adds the symbol Ic1 of the current position of the own ship and the symbol R1 of the wake, and others, based on the own ship information and the wake information of the other ship stored in the storage unit 14. A process is performed in which the monitor unit 15 displays a screen on which the symbol Ic2 of the current position of the ship and the symbol R2 of the wake are superimposed on the sea map.

The display processing for the symbol R2 by the display processing unit 13 is the same as the display processing for the symbol R1 described above.

[Operation flow]
The moving object locus display device 101 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads, for example, a program including a part or all of each step of the following flowchart from a storage unit 14 and executes the program. This program can be installed externally. This program is distributed in a state of being stored in a recording medium.

FIG. 12 is a flowchart defining an operation procedure when the moving body locus display device according to the embodiment of the present invention registers the display setting of the screen.

With reference to FIG. 12, first, the moving body trajectory display device 101 acquires the position information and the state information of the own ship (step S11).

Next, the moving body trajectory display device 101 creates own ship information in which the position information and the state information are associated with each other, and stores the information in the storage unit 14 (step S12).

Next, the moving body trajectory display device 101 creates the track information of the own ship based on the time-series own ship information stored in the storage unit 14, and stores it in the storage unit 14 (step S13).

Next, the moving body trajectory display device 101 displays on the monitor unit 15 a screen in which the track of the own ship and the like are superimposed on the nautical chart based on the information of the own ship and the track information of the own ship stored in the storage unit 14. Perform the process (step S14).

Next, the moving body trajectory display device 101 acquires information on other ships and stores it in the storage unit 14 (step S15).

Next, the moving body trajectory display device 101 creates the track information of the other ship based on the time-series other ship information stored in the storage unit 14, and stores it in the storage unit 14 (step S16).

Next, the moving body trajectory display device 101 displays on the monitor unit 15 a screen in which the track of another ship and the like are superimposed on the nautical chart based on the information of the other ship and the track information of the other ship stored in the storage unit 14. Perform the process (step S17).

The operations of steps S11 to S14 and the operations of steps S15 to S17 may be performed in a different order or in parallel.

Further, the operations of steps S15 to S17 correspond to the modified examples described with reference to FIGS. 10 and 11. That is, the moving body locus display device 101 may be configured not to perform the operations of S15 to S17.

In the moving body locus display device according to the embodiment of the present invention, the display processing unit 13 is configured to display a plurality of types of adjacent lines, but the present invention is not limited to this. The display processing unit 13 may be configured such that each display mode is different, each extension direction is along, the arrangement order with respect to the traveling direction of the moving body is fixed, and a plurality of lines spaced apart from each other are displayed. ..

Further, in the moving body locus display device according to the embodiment of the present invention, the display processing unit 13 is configured to display a plurality of lines indicating different types of states such as water temperature and depth, but the present invention is limited to this. It's not something to do. The display processing unit 13 may be configured to display a plurality of types of lines indicating different target states and the same type of state. For example, the display processing unit 13 may display a plurality of lines indicating the tidal currents for each layer of the sea, or may display a plurality of lines indicating the rotation speeds of different engines in the ship.

By the way, in a device that displays the trajectory of a moving object, a technology that can perform more effective display is desired.

In the moving body locus display device according to the embodiment of the present invention, the information creation unit 12 acquires the position information of the moving body. Then, the display processing unit 13 has different display modes as the locus of the moving body based on the time-series position information acquired by the information creating unit 12, each extending direction is along, and the moving body progresses. Performs processing to display a plurality of lines whose arrangement order is fixed with respect to the direction.

Further, in the moving body locus display method according to the embodiment of the present invention, first, the position information of the moving body is acquired, and then, based on the acquired time-series position information, each display mode is displayed as the locus of the moving body. Differently, a process is performed to display a plurality of lines in which the respective stretching directions are along and the arrangement order with respect to the traveling direction of the moving body is fixed.

With such a configuration, for example, the direction of the moving body locus can be represented by a line without an arrow, so that the visibility of the display object in which a plurality of moving body loci intersect or are densely packed can be easily improved.

Therefore, the moving body locus display device and the moving body locus display method according to the embodiment of the present invention can perform more effective display.

Further, in the moving body locus display device according to the embodiment of the present invention, the display processing unit 13 performs a process of displaying a plurality of lines in which at least one of color, thickness, and shape is different from each other. conduct.

The visibility can be improved more effectively by the configuration using such various display modes.

Further, in the moving body locus display device according to the embodiment of the present invention, the information creation unit 12 acquires state information indicating a state according to the position of the moving body. Then, the display processing unit 13 changes the display mode of the line based on the state information acquired by the information creation unit 12.

With such a configuration, it is possible to improve the information display efficiency, for example, while representing the direction of the moving body locus with a line without an arrow, for example, displaying different states such as water depth and water temperature with one unified symbol. Specifically, the user can easily grasp the difference in the state according to the position of the moving body in each of the plurality of types of lines.

Further, in the moving body locus display device according to the embodiment of the present invention, the state information includes water temperature, draft, depth, ship speed, salinity, current flow velocity, current direction, bow direction, reaction amount in fish school detection, and time. Includes at least one of them.

With such a configuration, it is possible to improve the visibility of various information about the ship and provide more effective navigation support.

Further, in the moving body locus display device according to the embodiment of the present invention, the display processing unit 13 performs a process of displaying a line for each state information.

With such a configuration, it is possible to easily grasp the difference in various states depending on the position of the moving body.

Further, in the moving body locus display device according to the embodiment of the present invention, the moving body is a ship and the locus is the wake of the ship.

With such a configuration, for example, unlike land that targets a road with lanes, the trajectory of each moving object tends to shift, but since the same navigation route is taken, each trajectory tends to be densely packed. It is possible to further improve the visibility in the locus display of a ship whose visibility tends to decrease. For example, it is possible to improve the visibility of the tracks of many other ships in a port and provide more effective navigation support.

The above embodiment should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

10 Communication unit 11, 11a, 11b, 11c Sensor 12 Information creation unit 13 Display processing unit 14 Storage unit 15 Monitor unit 101 Moving object trajectory display device

Claims (8)

1. The position acquisition unit that acquires the position information of the moving object, and
   Based on the time-series position information acquired by the position acquisition unit, each display mode is different as the locus of the moving body, each stretching direction is along, and the arrangement order of the moving body with respect to the traveling direction is A display processing unit that performs processing to display multiple fixed lines,
   A moving body locus display device.
2. The moving object locus display device according to claim 1, wherein the display processing unit performs processing for displaying a plurality of lines in which at least one of color, thickness, and shape is different from each other.
3. The moving body locus display device further
   A state acquisition unit for acquiring state information indicating a state according to the position of the moving body is provided.
   The moving object locus display device according to claim 1 or 2, wherein the display processing unit changes the display mode of the line based on the state information acquired by the state acquisition unit.
4. The state information according to claim 3, wherein the state information includes at least one of water temperature, draft, depth, ship speed, salinity, current flow velocity, flow direction, bow direction, reaction amount in fish school detection, and time. Motion locus display device.
5. The moving object locus display device according to claim 3 or 4, wherein the display processing unit performs a process of displaying the line for each state information.
6. The moving body locus display device according to any one of claims 1 to 5, wherein the moving body is a ship and the locus is a wake of the ship.
7. It is a moving body locus display method in a moving body locus display device.
   Get the position information of the moving body,
   Based on the acquired time-series position information, as the locus of the moving body, each display mode is different, each stretching direction is along, and a plurality of lines in which the arrangement order of the moving body with respect to the traveling direction is fixed are fixed. A moving object trajectory display method that performs processing to display.
8. It is a moving body trajectory display program
   The process of acquiring the position information of a moving object and
   Based on the acquired time-series position information, as the locus of the moving body, each display mode is different, each stretching direction is along, and a plurality of lines in which the arrangement order of the moving body with respect to the traveling direction is fixed are fixed. Processing to display,
   A moving object trajectory display program that executes.

Images