CN106772262B

CN106772262B - Display device and radar device

Info

Publication number: CN106772262B
Application number: CN201610851372.4A
Authority: CN
Inventors: 上杉宪司
Original assignee: Furuno Electric Co Ltd
Current assignee: Furuno Electric Co Ltd
Priority date: 2015-10-20
Filing date: 2016-09-26
Publication date: 2021-08-03
Anticipated expiration: 2036-09-26
Also published as: CN106772262A; JP6727787B2; JP2017078610A

Abstract

The invention provides a display device and a radar device, which improve the operability of the operation of moving a display object in the display device. The display device (13) is provided with an EBL operation knob (46), a VRM operation knob (47), a display unit (14), an operation mode switching unit (16), and a display control unit (15). The EBL operation knob is operated by a user to rotate the EBL to indicate the direction of the azimuth. The user instructs the position of the VRM indicating the distance by a rotational operation of the VRM operation knob. The display unit displays the EBL and the VRM, respectively, in accordance with an instruction from a user. When the operation mode is switched by the operation mode switching unit, the display control unit assigns, for example, a rotation operation of the EBL operation knob to a vertical scroll operation of the display screen, assigns a rotation operation of the VRM operation knob to a horizontal scroll operation, and scrolls the display screen based on the rotation operations of the EBL operation knob and the VRM operation knob.

Description

Display device and radar device

Technical Field

The present invention relates to a display device capable of displaying information. More specifically, the present invention relates to a configuration of a display device including an operation unit for operating a direction line for measuring a direction and a distance line for measuring a distance on a screen.

Background

In a display device provided in a radar device or the like, a function of displaying EBL (Electronic Bearing Line) and VRM (Variable Range Marker) on a screen is known. The EBL is a direction line for measuring the direction of a target object on a screen, and the VRM is a variable distance ring (distance line) for measuring the distance of the target object.

Patent document 1 discloses such a display device. In the display device of patent document 1, ON/OFF switching of the display of the EBL and the VRM, setting change of the displayed distance, and the like are performed by a dial-type operation element.

Prior art documents

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-one 202988

Disclosure of Invention

However, in a display device (particularly, a display device of a marine facility), when an instruction to move a display object such as a detection image or a cursor is given, operating elements such as a mouse, a trackball, and a cross key are widely used. However, when a mouse, a trackball, or the like is used, it is necessary to perform a complicated operation of moving and pulling back the operation element or the hand holding the operation element when a long-distance movement of the display object is instructed. Further, when the cross key is used, the operator may need to be finely pressed a plurality of times in order to finely adjust the position of the display object.

The present invention has been made in view of the above problems, and an object of the present invention is to improve operability related to an operation of moving a display object in a display device.

Means for solving problems and effects

As described above, means for solving the problems and effects thereof will be described below.

According to an aspect of the present invention, there is provided a display device having the following configuration. Specifically, the display device includes a direction line operating unit, a distance line operating unit, a display unit, an operation mode switching unit, and a display control unit. The user instructs the orientation of the azimuth line indicating the azimuth with respect to the reference position by a rotational operation with respect to the azimuth line operating unit. The user instructs the position of the distance line indicating the distance from the reference position by a rotational operation with respect to the distance line operating unit. The display unit displays the direction line and the distance line according to an instruction of a user. The operation mode switching unit switches between a 1 st operation mode in which the direction line and the distance line are operated by the direction line operating unit and the distance line operating unit, and a 2 nd operation mode in which a display object displayed on the display unit is moved by the direction line operating unit and the distance line operating unit. The display control unit moves the display object displayed on the display unit by performing at least one of a 1 st process and a 2 nd process in the 2 nd operation mode, the 1 st process allocating the rotation operation of one of the direction line operation unit and the distance line operation unit to a movement operation of the display object displayed on the display unit in a certain direction, allocating the rotation operation of the other to the movement operation of the display object in a direction perpendicular to the certain direction, obtaining a movement amount of the display object in each of the directions based on the rotation operations of the direction line operation unit and the distance line operation unit, and the 2 nd process allocating the rotation operation of one of the direction line operation unit and the distance line operation unit to a changing operation of the direction in which the display object moves, the other rotation operation is assigned to the movement operation of the display object in the direction, and the movement direction and the movement amount of the display object are obtained based on the rotation operations of the direction line operating unit and the distance line operating unit.

Accordingly, in the 2 nd operation mode, the operation related to the movement of the display object can be performed by the direction line operating unit and the distance line operating unit. As a result, the operability of the rotation operation tool can be flexibly applied, and the operability of the operation of moving the display object can be improved.

In the above display device, the following configuration is preferable. That is, the display control unit performs at least the 1 st process. In the 1 st process, the display control unit assigns the rotation operation of one of the direction line operating unit and the distance line operating unit to the movement operation of the display object in the vertical direction, and assigns the rotation operation of the other to the movement operation of the display object in the horizontal direction.

Accordingly, the user can move the display object with reference to the vertical and horizontal directions that are intuitive and easy to adapt.

The display device described above may have the following configuration. That is, the display control unit performs at least the 1 st process. In the 1 st process, the display control unit assigns the rotation operation of one of the direction line operating unit and the distance line operating unit to the movement operation of the display object in a direction in which a certain moving body faces, and assigns the rotation operation of the other to the movement operation of the display object in a direction perpendicular to the direction of the moving body.

Accordingly, the display object can be moved with reference to the direction in which the moving body is facing (for example, the bow direction of the ship or another ship).

In the above display device, the following configuration is preferable. That is, the display control unit performs at least the 2 nd process. In the process 2, the display control unit assigns the rotation operation of the direction line operation unit to a change operation of a direction in which the display object moves, and assigns the rotation operation of the distance line operation unit to the movement operation of the display object in the direction.

Accordingly, the direction line operating unit that originally changes the direction of the direction line by the rotating operation can be flexibly applied to change the moving direction of the display object. Therefore, the user can perform the operation without feeling uncomfortable, and operability can be improved.

In the above display device, it is preferable that the direction line operating unit and the distance line operating unit are rotatable about a fixed axis by 360 degrees or more.

Accordingly, the display object can be moved much more or faster by rotating at least one of the direction line operating unit and the distance line operating unit through a plurality of revolutions. Further, the operation positions of the azimuth line operation unit and the distance line operation unit are less susceptible to the influence of the ship's sway than a trackball that rotates about an arbitrary axis, and therefore, the display object can be prevented from moving unexpectedly.

In the display device, it is preferable that the display object includes any one of a search image and a chart.

This improves operability when scrolling a large image.

In the above display device, it is preferable that the display object is a cursor.

This improves operability when moving the cursor.

Preferably, the display device is provided on a radar device.

Accordingly, the radar device having superior operability as described above can be provided.

Drawings

Fig. 1 is a block diagram showing a configuration of a radar device according to an embodiment of the present invention.

Fig. 2 is a front view showing a display unit on which a radar image is displayed.

Fig. 3 is a plan view showing the operation unit.

Fig. 4 is a schematic diagram showing a display screen on which a radar image, EBL, and VRM are displayed.

Fig. 5 is a conceptual diagram illustrating a case where the EBL operation knob and the VRM operation knob scroll the display screen.

Fig. 6 is a conceptual diagram illustrating a case where the cursor is moved by the EBL operation knob and the VRM operation knob.

Fig. 7 is a conceptual diagram illustrating another example related to the scroll operation of the display screen.

Fig. 8 is a conceptual diagram illustrating still another example related to the scroll operation of the display screen.

Description of the labeling:

10 radar device

13 display device

14 display part

15 display control part

16 operation mode switching part

46 EBL operation knob (Square line operation part)

47 VRM operating knob (distance line operating part)

50 display screen

56 EBL (Square line)

57 VRM (distance line)

60 cursor.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. Fig. 1 is a block diagram showing a configuration of a radar device 10 according to an embodiment of the present invention. Fig. 2 is a schematic diagram showing a case where the display unit 14 displays a radar image. Fig. 3 is a schematic diagram showing a state of the operation unit 20.

The radar device 10 of the present embodiment is used in a ship as a ship equipment. As shown in fig. 1, the radar device 10 includes a radar antenna 11, a transmission/reception unit 12, and a display device 13.

The radar antenna 11 emits a pulse-like radio wave detection signal and receives an echo signal, which is a reflected wave of the emitted radio wave. The radar antenna 11 rotates in a horizontal plane at a predetermined period, and repeatedly outputs the detection signal to different azimuths at a period shorter than the rotation period.

The transceiver 12 supplies a trigger pulse to the radar antenna 11, and transmits a detection signal from the radar antenna 11 based on the trigger pulse. The transmitting/receiving unit 12 detects and amplifies the reflected wave received by the radar antenna 11, converts the reflected wave into a digital signal by an analog-to-digital converter not shown, and outputs the digital signal to the display device 13.

The display device 13 generates a radar image (a detection image, a display object) based on the information of the reflected wave input from the transmission/reception unit 12, and displays the radar image on the display unit 14. As shown in fig. 1, the display device 13 of the present embodiment includes a display unit 14, an operation mode switching unit 16, a display control unit 15, and an operation unit 20.

As shown in fig. 2, the display unit 14 is configured by a liquid crystal display or the like, and a radar image is displayed on a display screen 50 of the display unit 14. In the display screen 50, a cross-shaped cursor (display object) 60 for the user to indicate an arbitrary position on the screen is displayed so as to be superimposed on the radar image.

When the operation content of the operator by the operation unit 20 described later includes an operation related to the operation mode (for example, an operation of the operation mode switch 33), the operation mode switching unit 16 performs control so as to appropriately switch the operation mode between the EBL/VRM operation mode and the display screen operation mode. Further, details regarding the 2 operation modes will be described later.

The display control unit 15 generates a radar image based on a signal input from the transmission/reception unit 12 to the display device 13, and outputs the radar image to the display unit 14. The display control unit 15 can perform the processing in the 1 st mode (the 1 st processing) and the processing in the 2 nd mode (the 2 nd processing) described later in association with the scroll of the display screen 50 (radar image) or the movement of the cursor 60. The display unit 14 displays the radar image (detection image) generated by the display control unit 15 on the display screen 50.

The operation unit 20 is used for an operator to perform various operations of the radar device 10. As shown in fig. 3, the operation section 20 includes an operation key 21, a trackball 22, and a dial 23 as operation members to be operated by an operator.

The operation keys 21 are on-off operation members, and include an EBL switch 36, a VRM switch 37, a screen scroll/cursor movement switching switch 32, a movement mode switching switch 31, an operation mode switching switch 33, and a cross key 34. The operator can perform various settings by operating the operation keys 21.

The EBL switch 36 can switch ON/OFF (ON/OFF) of an EBL display function described later. The VRM switch 37 can switch ON/OFF of a VRM display function described later.

The screen scroll/cursor movement switch 32 can switch whether to scroll the display screen 50 or move the cursor 60 by operating the dial portion 23.

The travel mode changeover switch 31 can switch between the 1 st mode and the 2 nd mode.

The operation mode switch 33 can switch the operation mode between the EBL/VRM operation mode and the display screen operation mode. The details of the 2 operation modes described above will be described later.

The cross key 34 can scroll the display screen 50 up, down, left, and right, or move the cursor 60 displayed on the display screen 50 up, down, left, and right.

The trackball 22 is a pointing device provided with a ball. The user of the display device 13 can scroll the display screen 50 or move the cursor 60 by rotating the ball with his or her finger in accordance with the rotation direction and speed. Further, as the pointing device, a mouse may be used instead of the trackball 22.

The dial portion 23 includes an EBL operation knob (azimuth line operation portion) 46 and a VRM operation knob (distance line operation portion) 47.

The EBL operation knob 46 is a dial-type operation unit for operating an azimuth line (EBL) of the azimuth of the target object on the screen. The EBL operation knob 46 can rotate the EBL56 displayed on the display screen 50 according to the rotation angle thereof.

The VRM operation knob 47 is a dial-type operation portion for operating a distance line (VRM) of a distance of a measurement target object. The VRM operation knob 47 can move the VRM57 displayed on the display screen 50 according to the rotation angle thereof.

The EBL operation knob 46 and the VRM operation knob 47 are configured to be rotated to scroll the display screen 50 or move the cursor 60 (details will be described later).

When the operator operates the above-described operation unit provided in the operation unit 20, a signal corresponding to the operation is output to the display control unit 15. The display control unit 15 that inputs the signal performs appropriate processing based on the operation content, and controls to change the image displayed on the display unit 14 as necessary.

The display device 13 is a computer, and includes hardware such as a CPU, ROM, and RAM. Further, the ROM stores software including a program for displaying a radar image. The display device 13 can be operated as the display control unit 15, the operation mode switching unit 16, and the like by cooperation of the hardware and the software.

The display device 13 of the present embodiment has an EBL display function, a VRM display function, and a fixed distance ring display function.

The EBL display function is a function of displaying an EBL (azimuth line) 56 indicating an azimuth with respect to the position (reference position) of the ship 51 on the display unit 14.

The VRM display function is a function of displaying VRMs (distance lines) 57 as variable distance rings indicating distances from the position of the ship 51 on the display unit 14.

The fixed distance ring display function is a function of displaying the fixed distance ring 55 on the display unit 14 based on radius information (fixed distance information) set in advance in the display device 13.

Switching between display and non-display of the EBL56 can be performed by the EBL switch 36 provided in the operation key 21. Switching of display/non-display of VRM57 can be performed by VRM switch 37 provided in operation key 21. The display/non-display switching of the fixed range ring 55 can be performed by an unillustrated fixed range ring setting unit provided in the operation unit 20. When the operator turns ON the EBL, VRM, or fixed distance ring display, the display controller 15 performs image processing so that the EBL56, VRM57, or fixed distance ring 55 is displayed ON the display unit 14.

When the EBL display is ON, the EBL operation knob 46 can operate the direction of the EBL56 displayed ON the display unit 14. When the VRM display is ON, the position (size) of the VRM57 displayed ON the display unit 14 can be operated by the VRM operation knob 47. The details of this operation will be described later.

Next, the EBL display function, the VRM display function, and the fixed ring display function of the display device 13 according to the present embodiment will be described with reference to fig. 4. Fig. 4 is a schematic diagram showing a display screen 50 on which a radar image, EBL56, and VRM57 are displayed.

In the radar image shown in fig. 4, a fixed-distance ring 55, an EBL56, and a VRM57 are displayed with the ship 51 as the center. Then, a target object 52 detected based on the reception information of the radar antenna 11 is displayed in the radar image.

The fixed distance ring is a circle centered on the position of the ship 51, and a plurality of fixed distance rings 55 having different radii are concentrically displayed. As information on the size of the radius of each fixed distance ring 55 (the radius information), it is appropriately determined that the intervals between the fixed distance rings 55 adjacent to each other are equal. The operator can grasp the approximate distance of the ship 51 from the target object 52 by considering the positional relationship between the fixed range ring 55 and the target object 52 on the radar screen. The size of the circle of the fixed distance ring 55 can be appropriately set by the operator operating the operation unit 20 and calling up the setting menu screen. Further, the ON/OFF switching of the fixed range ring display function for displaying the fixed range ring 55 ON the radar image is performed by the fixed range ring setting unit provided in the operation unit 20.

By the user pressing the EBL switch 36 to turn ON the EBL display function, the EBL56 can be displayed ON the display screen 50. The EBL56 is displayed on the display unit 14 as a broken line (straight line) extending in a direction away from the position of the ship 51. In the state where the EBL56 is displayed, the operation amount of the EBL operation knob 46 is linked with the angle of the EBL56 so that the EBL56 on the radar image is rotated in accordance with the operation amount of the EBL operation knob 46.

As shown in fig. 4, in the lower left corner of the display screen 50 in which the EBL56 is displayed, an EBL information area 66 for displaying information of the EBL56 by characters, numerical values, or the like is displayed in a small rectangular shape. In the EBL information area 66, the orientation of the EBL56 set by the EBL operation knob 46 is displayed by an angle (numerical value).

In the radar image of fig. 4, north is displayed above the display screen 50 (so-called north-up display), and the angle of the EBL56 is set such that north is 0 degrees and the value thereof increases clockwise. However, the display device 13 of the present embodiment is not limited to the above-described north direction, and may display in another direction above the display screen 50. As an example of the display mode, the ship 51 may be displayed with the bow direction thereof directed upward on the display screen 50.

By the user pressing the VRM switch 37 to turn ON the VRM display function, the VRM57 can be displayed ON the display screen 50. The VRM57 is displayed on the display unit 14 as a circle centered on the ship 51. In the present embodiment, the VRM57 is shown by a broken line and visually distinguishable from the fixed distance ring 55 on the screen. In a state where the VRM57 is displayed, the operation amount of the VRM operation knob 47 is linked with the size of the VRM57 so that the radius (the size of the circle) of the VRM57 on the radar image changes in accordance with the operation amount of the VRM operation knob 47.

As shown in fig. 4, in the lower right corner of the display screen 50 in a state where the VRM57 is displayed, a VRM information area 67 for displaying information of the VRM57 by characters, numerical values, and the like is displayed in a small rectangular shape. In the VRM information region 67, a distance indicating the size (position of the distance line) of the VRM57 set via the VRM operation knob 47 is displayed as a numerical value in nm (nautical miles).

The operator can measure the azimuth of a desired target object (for example, the target object 52) 52 by operating the EBL operation knob 46, adjusting the orientation of the EBL56 so that the EBL56 overlaps the position of the target object 52 on the radar image, and reading the numerical value displayed in the EBL information area 66. Further, the operator can measure the distance of the ship 51 from the target object 52 by operating the VRM operation knob 47 to adjust the size of the VRM57 so that the VRM57 overlaps the position of the target object 52 and reading the numerical value displayed in the VRM information area 67. As described above, the operator can grasp the direction and distance of the target object 52 from the numerical value.

In the example of fig. 4, the EBL56, the VRM57, and the fixed distance ring 55 are displayed at the same time, but only one of the EBL56, the VRM57, and the fixed distance ring 55 may be displayed. In this case, the EBL switch 36, the VRM switch 37, and the fixed distance ring setting unit may be operated to turn ON the function to be displayed and turn OFF the function not to be displayed.

Next, the scroll of the display screen 50 and the movement of the cursor 60 by the dial-type operation unit provided in the dial portion 23 will be described with reference to fig. 5 and 6. Fig. 5 is a conceptual diagram illustrating a case where the EBL operation knob 46 and the VRM operation knob 47 scroll the display screen 50. Fig. 6 is a conceptual diagram illustrating a case where the cursor 60 is moved by the EBL operation knob 46 and the VRM operation knob 47.

First, an operation of scrolling the display screen 50 will be described with reference to fig. 5.

Fig. 5 shows a positional relationship between the display screen 50a before scrolling and the display screen 50b after scrolling. In the example of fig. 5, both the EBL display function and the VRM display function are OFF.

In the display device 13 of the present embodiment, when both the EBL display function and the VRM display function are in the OFF state, the operation mode switching unit 16 is configured to automatically switch from the EBL/VRM operation mode (1 st operation mode), which is the mode in which the EBL56 and the VRM57 are operated as described above by dial-type operators provided on the dial portion 23, to the display screen operation mode (2 nd operation mode), which is the mode in which the display screen 50 is scrolled by the dial-type operators. Therefore, when the EBL switch 36 and the VRM switch 37 are operated by the user to the state of fig. 5 in which the EBL56 and the VRM57 are not displayed, the display screen 50 is scrolled in accordance with the rotation operation of the EBL operation knob 46 and the VRM operation knob 47.

As described above, in the display device 13 of the present embodiment, the EBL switch 36 and the VRM switch 37 can (indirectly) switch the operation mode between the EBL/VRM operation mode and the display screen operation mode.

However, even when at least one of the EBL display function and the VRM display function is in the ON state, the operation mode switching unit 16 can change the EBL/VRM operation mode to the display screen operation mode by operating the operation mode switching switch 33. In this case, in a state where the EBL56 or the VRM57 is displayed, the display screen 50 is scrolled in accordance with the rotational operations of the EBL operation knob 46 and the VRM operation knob 47.

The above-described display screen operation mode is specifically described. In the display screen operation mode, when the EBL operation knob 46 is rotated to one side in a state where the display screen 50a is displayed, the display screen 50 is scrolled upward, and when the EBL operation knob is rotated to the other side, the display screen 50 is scrolled downward.

The amount 71m of movement of the display screen 50 in the vertical direction is determined according to the angle by which the EBL operation knob 46 is rotated. Therefore, in order to finely adjust the vertical position of the display screen 50, the angle of the EBL operation knob 46 may be finely adjusted. On the other hand, if the display screen 50 is rapidly and largely scrolled in the vertical direction, the EBL operation knob 46 can be rotated at a high speed.

In the state of the display screen 50a, when the VRM operation knob 47 is rotated to one side, the display screen 50 is scrolled to the left, and when the VRM operation knob 47 is rotated to the other side, the display screen 50 is scrolled to the right.

The amount 71n of movement of the display screen 50 in the left-right direction is determined in accordance with the rotation angle of the VRM operation knob 47. Therefore, to finely adjust the position of the display screen 50 in the left-right direction, the angle of the VRM operation knob 47 may be finely adjusted. On the other hand, if the display screen 50 is rapidly and largely scrolled in the left-right direction, the VRM operation knob 47 can be rotated at a high speed.

The EBL operation knob 46 and the VRM operation knob 47 can be rotated independently of each other, but can be rotated simultaneously by both hands. When the EBL operation knob 46 and the VRM operation knob 47 are simultaneously operated from the state of the display screen 50a, the display screen 50 scrolls by a movement amount 71, and the movement amount 71 is a vector sum of the movement amount 71 corresponding to the rotation angle of the EBL operation knob 46 and the movement amount 71n corresponding to the rotation angle of the VRM operation knob 47, and the display screen 50b is in a state.

As described above, the EBL operation knob 46 and the VRM operation knob 47 scroll the display screen 50, thereby enabling flexible operation according to the user's desire. In particular, since both the EBL operation knob 46 and the VRM operation knob 47 can be rotated infinitely (the range of the rotation angle is not physically limited), it is not necessary to perform an operation of moving and dragging back as in the case of using a mouse or a trackball when the display screen 50 is scrolled over a long distance. Further, since the rotation angle of the knob corresponds to the scroll amount of the display screen 50, the scroll position can be intuitively finely adjusted. Therefore, operability when scrolling the display screen 50 can be improved.

The EBL operation knob 46 and the VRM operation knob 47 are configured to be rotatable about a fixed axis. Accordingly, the display screen 50 can be prevented from being accidentally scrolled because it is less susceptible to the ship's shaking than the trackball 22 that rotates about an arbitrary axis. In the marine vessel equipment, in order to avoid the influence of the rolling motion of the vessel, the trackball 22 is often adjusted so as to be hard to roll (the rolling resistance is large), but the EBL operation knob 46 and the VRM operation knob 47 do not need to be adjusted as described above, and therefore, the user is unlikely to feel tired in the operation.

In the present embodiment, the display control unit 15 allocates the rotation angle of the EBL operation knob 46 to the scrolling of the display screen 50 in the vertical direction, and allocates the rotation angle of the VRM operation knob 47 to the scrolling of the display screen 50 in the horizontal direction. Accordingly, the rotation operation of the EBL operation knob 46 and the VRM operation knob 47 can be easily made to correspond to the direction of scrolling of the display screen 50, and the display screen 50 can be scrolled by an intuitive and easily adaptable operation.

As described above, even when the mode is switched by operating the mode switch 33 while at least one of the EBL56 and the VRM57 is displayed, the display screen 50 can be scrolled in accordance with the rotation operation of the EBL operation knob 46 and the VRM operation knob 47. In this case, for example, "scroll" or the like is preferably displayed in the EBL information area 66 or the VRM information area 67. Accordingly, the user can easily understand that the operations of the EBL operation knob 46 and the VRM operation knob 47 are allocated to the scroll operation, and therefore, it is possible to prevent an erroneous operation.

Next, an operation of moving the cursor 60 will be described with reference to fig. 6.

That is, as shown in fig. 6, the rotational operation of the EBL operation knob 46 and the VRM operation knob 47 in the above-described display screen operation mode can also be used to move the cursor 60. The user can switch whether to scroll the display screen 50 or move the cursor 60 by operating the EBL operation knob 46 and the VRM operation knob 47 by pressing the screen scroll/cursor movement switching switch 32 provided in the operation key 21.

The operation of moving the cursor 60 at this time is substantially the same as the scrolling of the display screen 50 described with reference to fig. 5. As briefly described with reference to fig. 6, the rotation operation of the EBL operation knob 46 is allocated to the movement of the cursor 60 in the vertical direction, and the rotation operation of the VRM operation knob 47 is allocated to the movement of the cursor 60 in the horizontal direction. The amount 72m of movement of the cursor 60 in the vertical direction and the amount 72n of movement of the cursor 60 in the horizontal direction are determined by the angles at which the EBL operation knob 46 and the VRM operation knob 47 are rotated, respectively, and the cursor 60a is moved to the position of the cursor 60b in accordance with the vector sum of the

amounts

72m and 72n described above, that is, the amount 72 of movement. With this configuration, operability when moving the cursor 60 can be improved.

Next, an example in which the scrolling of the display screen 50 and the movement of the cursor 60 are assigned by the rotational operation of the EBL operation knob 46 and the VRM operation knob 47, is other than the combination of the up-down direction and the left-right direction will be described.

The display device 13 of the present embodiment can operate in the following 2 modes when the rotational operations of the EBL operation knob 46 and the VRM operation knob 47 are allocated to the scroll movement of the display screen 50.

In one mode (mode 1), the rotation operation of one of the EBL operation knob 46 and the VRM operation knob 47 is assigned to the scroll of the display screen 50 in a certain direction, and the rotation operation of the other is assigned to the scroll of the display screen 50 in a direction perpendicular to the certain direction.

In the other mode (mode 2), the rotation operation of one of the EBL operation knob 46 and the VRM operation knob 47 is assigned to the change of the scroll direction of the display screen 50, and the rotation operation of the other is assigned to the scroll of the display screen 50 in the direction.

Further, in the above-described mode 1, the following 2 kinds of allocations can be made. In one mode (mode 1 a), as described above, the rotation operation of one of the EBL operation knob 46 and the VRM operation knob 47 is allocated to the scrolling of the display screen 50 in the vertical direction, and the rotation operation of the other is allocated to the scrolling of the display screen 50 in the horizontal direction. In the other mode (mode B1), the rotation operation of one of the EBL operation knob 46 and the VRM operation knob 47 is assigned to the scroll of the display screen 50 in the direction in which a certain moving object is facing, and the rotation operation of the other is assigned to the scroll of the display screen 50 in the direction perpendicular to the direction in which the moving object is facing.

The 1 st mode a, the 1 st mode B, and the 2 nd mode can be switched by pressing a movement mode switch 31 provided in the operation key 21. Specific examples of the following description are given of mode 1B and mode 2.

In the 1 st mode B shown in fig. 7, the scroll direction of the display screen 50 is determined based on the heading direction of the ship 51 as the moving object. Specifically, when the EBL operation knob 46 is rotated to one side in the state of the display screen 50a, the display screen 50 is scrolled by a movement amount 73m corresponding to the rotation angle in the direction of the bow direction of the ship 51 (arrow given to the ship 51). When the VRM operation knob 47 is rotated to one side in the state of the display screen 50a, the display screen 50 rolls in the direction perpendicular to the direction of the bow azimuth of the ship 51 by the movement amount 73n corresponding to the rotation angle.

Fig. 7 shows an example in which the EBL operation knob 46 and the VRM operation knob 47 are simultaneously operated, and the display screen 50 in the state of the display screen 50a scrolls by a shift amount 73, which is a vector sum of a shift amount 73m according to the rotation angle of the EBL operation knob 46 and a shift amount 73n according to the rotation angle of the VRM operation knob 47, to be in the state of the display screen 50 b.

In the 2 nd mode shown in fig. 8, the display screen 50 is scrolled in one dimension, and the scroll direction can be arbitrarily changed. Specifically, the rotation operation of the EBL operation knob 46 is assigned to the change of the direction in which the display screen 50 is scrolled. The rotational operation of the VRM operation knob 47 is allocated to the scroll of the display screen 50 in the scroll direction instructed by the rotational operation of the EBL operation knob 46. In the example of fig. 8, the display screen 50b is brought into a state in which the display screen 50 is rotated counterclockwise by an angle 74p corresponding to the rotation angle of the EBL operation knob 46, first, in the substantially vertical direction, and then, the display screen 50 is scrolled in the scroll direction by a movement amount 74q corresponding to the rotation angle of the VRM operation knob 47.

As described above, in the state where the EBL56 is displayed, the EBL operation knob 46 is assigned to change the direction of the EBL56 (azimuth line). In addition, in the above-described 2 nd mode, since the operation (specifically, the change of the scroll direction) having similar properties to those described above is assigned to the EBL operation knob 46, the user can operate the operation without a sense of discomfort, and operability is improved.

Further, by operating the screen scroll/cursor movement switching switch 32, the 1 st mode B and the 2 nd mode described above can be applied to the movement of the cursor 60, similarly to the 1 st mode a. As a result, the same excellent operability as described above can be achieved even when the cursor 60 is moved.

As described above, the display device 13 included in the radar device 10 according to the present embodiment includes the EBL operation knob 46, the VRM operation knob 47, the display unit 14, the operation mode switching unit 16, and the display control unit 15. The EBL operation knob 46 is operated by the user to rotate and instruct the direction of the EBL56 indicating the azimuth relative to the position of the ship 51. The user rotationally operates the VRM operation knob 47 to instruct the position of the VRM57 indicating the distance from the position of the ship 51. The display unit 14 displays EBL56 and VRM57 in response to a user instruction. The operation mode switching unit 16 switches between an EBL/VRM operation mode in which the EBL56 and the VRM57 are operated by the EBL operation knob 46 and the VRM operation knob 47, and a display screen operation mode in which the display screen 50 displayed on the display unit 14 is moved by the EBL operation knob 46 and the VRM operation knob 47. In the display screen operation mode, the display control unit 15 performs either the processing in the 1 st mode or the processing in the 2 nd mode to move the display screen 50 (radar image) displayed on the display unit 14. In the 1 st mode a of the 1 st mode, the rotational operation of the EBL operation knob 46 is assigned to the vertical movement operation of the display screen 50 displayed on the display unit 14, the rotational operation of the VRM operation knob 47 is assigned to the horizontal movement operation of the display screen 50, and the vertical and horizontal movement amounts of the display screen 50 are obtained based on the rotational operations of the EBL operation knob 46 and the VRM operation knob 47. In the processing of the 2 nd mode, the rotation operation of the EBL operation knob 46 is assigned to the operation of changing the direction in which the display screen 50 moves, the rotation operation of the VRM operation knob 47 is assigned to the operation of moving the display screen in that direction, and the direction and the amount of movement of the display screen 50 are obtained based on the rotation operations of the EBL operation knob 46 and the VRM operation knob 47.

Accordingly, in the display screen operation mode, the EBL operation knob 46 and the VRM operation knob 47 can perform operations related to scrolling the display screen 50. As a result, the operability of the operation of scrolling the display screen 50 can be improved by flexibly applying the operability of the EBL operation knob 46 and the VRM operation knob 47.

While the preferred embodiments of the present invention have been described above, the above-described configuration can be modified as follows, for example.

In the display device 13 of the above embodiment, the EBL display function and the VRM display function are switched ON and OFF by operating the operation keys 21, but instead, a switch function may be provided to the EBL operation knob 46 and the VRM operation knob 47, and the EBL display function and the VRM display function may be switched ON and OFF by pressing the EBL operation knob 46 and the VRM operation knob 47. Further, the setting screen may be called by operating the operation unit 20, and the EBL display function and the VRM display function may be switched ON and OFF by selecting from the setting menu.

In the display device 13 of the above-described embodiment, the operation mode switching unit 16 detects the operation of the operation mode switching switch 33, and the operation mode switching unit 16 switches between the EBL/VRM operation mode and the display screen operation mode. Alternatively, the 2 operation modes may be switched by calling up the setting screen by operating the operation unit 20 and selecting from the setting menu.

The operation mode switching switch 33 may be omitted, and the operation mode switching unit 16 may detect the operations of the EBL switch 36 and the VRM switch 37 to switch the 2 operation modes.

In the display device 13 of the above-described embodiment, whether the display screen 50 is scrolled or the cursor 60 is moved by the rotational operation of the EBL operation knob 46 and the VRM operation knob 47 is switched by the screen scroll/cursor movement switching switch 32, but instead, the operation unit 20 may be configured to call up a setting menu screen and to make a selection through the setting menu. Similarly, the 1 st mode a, the 1 st mode B, or the 2 nd mode may be switched by the setting menu.

In the display device 13 of the above embodiment, in the 1 st mode B, the heading direction of the ship 51 is set as a reference for the movement direction of the display screen 50 or the cursor 60, but the present invention is not limited thereto, and the heading direction of another ship may be set as a reference. The bow position of the other ship can be acquired by an Automatic Identification System (AIS), for example.

In the above-described embodiment, the radar image is displayed on the display screen 50, but the present invention is not limited to the scroll of the radar image, and can be applied to the scroll of a sonar image, a fish image, a sea chart, or the like.

In any of the 1 st mode a, the 1 st mode B, and the 2 nd mode, the allocation of the rotational operations of the EBL operation knob 46 and the VRM operation knob 47 may be reversed.

Any one or two of the 1 st mode a, the 1 st mode B, and the 2 nd mode may be omitted.

The present invention can also be applied to a configuration used for a display device other than the radar device 10.

Claims

1. A display device is characterized by comprising:

a direction line operating unit for a user to instruct a direction of a direction line indicating a direction to a reference position by a rotational operation;

a distance line operating section for a user to instruct a position of a distance line representing a distance from a reference position by a rotational operation;

a display unit that displays the direction line and the distance line according to an instruction from a user;

an operation mode switching unit that switches between a 1 st operation mode in which the direction line and the distance line are operated by the direction line operating unit and the distance line operating unit, and a 2 nd operation mode in which a display object displayed on the display unit is moved by the direction line operating unit and the distance line operating unit; and

a display control unit that performs at least one of a 1 st process and a 2 nd process in the 2 nd operation mode to move the display object displayed on the display unit, wherein the 1 st process allocates the rotation operation of one of the direction line operation unit and the distance line operation unit to a movement operation of the display object displayed on the display unit in a certain direction, allocates the rotation operation of the other to the movement operation of the display object in a direction perpendicular to the certain direction, obtains a movement amount of the display object in the certain direction and a direction perpendicular to the certain direction based on the rotation operations of the direction line operation unit and the distance line operation unit, and allocates the rotation operation of one of the direction line operation unit and the distance line operation unit to a changing operation of the movement direction of the display object, the other rotation operation is assigned to the movement operation of the display object in the movement direction, and the movement direction and the movement amount of the display object are obtained based on the rotation operations of the direction line operation unit and the distance line operation unit.

2. The display device of claim 1,

the display control unit performs at least the 1 st process,

in the 1 st process, the display control unit assigns the rotation operation of one of the direction line operating unit and the distance line operating unit to the movement operation of the display object in the vertical direction, and assigns the rotation operation of the other to the movement operation of the display object in the horizontal direction.

3. The display device of claim 1,

the display control unit performs at least the 1 st process,

in the 1 st process, the display control unit assigns the rotation operation of one of the direction line operating unit and the distance line operating unit to the movement operation of the display object in a direction in which a certain moving body faces, and assigns the rotation operation of the other to the movement operation of the display object in a direction perpendicular to the direction in which the moving body faces.

4. The display device according to any one of claims 1 to 3,

the display control unit performs at least the 2 nd process,

in the process 2, the display control unit assigns the rotation operation of the direction line operating unit to a change operation of a moving direction of the display object, and assigns the rotation operation of the distance line operating unit to the moving operation of the display object in the moving direction.

5. The display device of claim 1,

the direction line operating unit and the distance line operating unit are each rotatable about a fixed axis by 360 degrees or more.

6. The display device of claim 1,

the display includes any one of a search image and a chart.

7. The display device of claim 1,

the display is a cursor.

8. A radar device provided with the display device according to any one of claims 1 to 7.