JPH0836045A - Target bearing display device - Google Patents

Abstract

PURPOSE:To confirm a target such as another vessel easily by one visual confirmation, and to allow a rapid visual confirmation even during the veering of an operator's own vessel, by providing a target display device which consists of a luminous element train, on the window sides around the operation room, and lighting a luminous element at a marking position depending on the positions of the detected target and a user. CONSTITUTION:On the window of a room where the operator 100 of the vessel stays normally, a display device 20 which consists of an LED train and the like is provided giving a specific angle scope or the full scope, and at the feet of the operator 100, a mat switch to detect the feet position is provided. And in the operation room, the display devices of a radar system 10 and a navigation system 12, an operation device, and the like are arranged. And the operation device inputs the distance rr and the direction Qr of the target 102 from the radar system 10, the position of the operator's own vessel, and the destination data (the bearing and the distance) from the navigation system 12, and the position of the operator 100 and the like from the mat switch, carries out the operation process, and lights the LED of the display device 20 to display the target 102. Consequently, the target 102 can be located easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a target orientation display device for displaying the orientation of a target viewed from a user.

[0002]

2. Description of the Related Art A radar device is usually mounted on a moving body such as a ship. On the radar device, for example, a radar image showing the surroundings around the ship is displayed.
An observer such as a ship operator, by looking at the radar image, determines whether or not another target such as another ship exists in the surrounding area, and at what distance and direction the target exists from the viewpoint of the own ship. You can know if you are there regardless of the light and dark surroundings. Usually, the ship operator looks at the radar image and knows the existence, distance and direction of the target object, then shifts his eyes to the outside of the window, and visually or using binoculars or other optical equipment See the mark.

[0003]

However, in order to find the target object by looking out of the window after seeing the radar image,
It is difficult unless you are a skilled ship operator (observer). Further, it takes a certain amount of time because it requires a two-step operation of first looking at the radar image and then looking out of the window. In addition, when the own ship has changed needles, the target orientation at the current time is not displayed on the radar image unless the aerial line makes one revolution after the change of needles, which makes quick response difficult.

The present invention has been made to solve the above problems, and an observer such as a ship operator can use the outputs of the own ship direction detecting device, navigation device and radar device. It is an object of the present invention to provide a device capable of easily visually recognizing the direction of a target of another ship or the like by one operation and enabling quick visual recognition even when the own ship is changing needles. To do.

[0005]

In order to achieve such an object, a target orientation display device according to the present invention comprises a light emitting element array arranged along the circumference of a room and close to a window, and an object array. A means for detecting the azimuth of the target and the position of the user, a means for determining the display position based on the azimuth of the target and the position of the user, and a display position determined among the plurality of light emitting elements forming the light emitting element row. Means for displaying an azimuth by causing a certain light emitting element to emit light.

Further, the present invention is characterized by comprising means for detecting the distance of the target and means for changing the light emission mode of the light emitting element according to the detected distance.

The present invention is further characterized by comprising means for limiting the target object to be displayed to the target object satisfying a predetermined condition.

The present invention is characterized by further comprising means for obtaining a display position based on the destination information and the position of the user when the destination information is obtained from the navigation device.

[0009]

In the present invention, first, the direction of the target and the position of the user are detected, and the display position is obtained based on the detected direction of the target and the position of the user. Further, among the plurality of elements forming the light emitting element row arranged along the circumference of the room and close to the window, the light emitting element at the obtained display position is caused to emit light. Therefore, in the present invention, the user can know in which direction the target is present only by standing in the room and looking at the light emitting element array. Also, since this display changes according to the detected bearing of the target, even if the orientation of the target orientation display device (or the ship's heading when mounted on a ship) changes You can deal with it quickly.

Further, in the present invention, the distance of the target is detected, and the light emitting mode (color, blinking, etc.) of the light emitting element changes according to the detected distance. Therefore, according to the present invention, it is possible to roughly inform the user about the distance of the target from the light emitting element array.

In the present invention, the target to be displayed is further limited to the target satisfying a predetermined condition. Therefore, when there are many targets in the surroundings, a plurality of light-emitting elements forming the light-emitting element array emit light at the same time, which hinders usability.

Further, in the present invention, when the information on the destination is obtained from the navigation device, the display position is obtained based on the information on the destination and the position of the user, and based on the obtained display position. The light emitting element emits light. Therefore, in the present invention, the information on the destination obtained by the navigation device can be displayed so that the user can see it in one motion.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a functional configuration of a target orientation display device according to an embodiment of the present invention. As shown in this figure, this embodiment uses the radar device 1 as an input device.
0, a navigation device 12, a ship heading detection device 21, a beacon receiver 14, and a ship operator position sensor 16, and a calculation unit 18 as calculation means. A display device 20 configured as an LED array or the like is provided as an output unit. This device is mounted on a moving body such as a ship.

The display device 20 is arranged, for example, as shown in FIG. 2, on a window of a room in which the operator 100 is resident, over a predetermined angle range or over the entire circumference.
The display units of the radar device 10 and the navigation device 12 are also arranged inside the room. The radar device 10 is, as shown in FIG. 3, a distance r to the target 102 existing around the ship.
_{The T} and azimuth θ _T are detected, and the result is supplied to the calculation unit 18. The radar device 10 in this embodiment is ARPA,
That is, it has a built-in automatic collision prevention assistance device and tracks the target being captured. Beacon receiver 14 is an EPI
RB (Emergency Position Indicating Radar Beacon)
Etc., and the contents thereof are supplied to the calculation unit 18. The operator position sensor 16 is, for example, as shown in FIG.
The mat switch 22 as shown in FIG. The mat switch 22 has a configuration in which a plurality of switches 24 such as small tact switches are arranged in a matrix, and is laid on the floor of a room in which the boat operator 100 is resident. The switch scanning device 26 scans the switches 24 arranged in a matrix for each column or row. Therefore, depending on which of the switches 24 configuring the mat switch 22 is turned on, it is possible to detect where in the room the boat operator 100 is. The position of the boat operator 100 detected by the boat operator position sensor 16 is input to the calculation unit 18.

The calculation unit 18 uses the distance r _T of the target obtained by the radar device 10, the direction θ _T , the own ship position obtained from the navigation device 12, the destination information (direction / distance), and the operator position sensor 16. Based on the output position of the marine vessel manipulator 100, beacon information received by the beacon receiver 14, etc., the arithmetic processing described later is performed, and the LEDs constituting the display device 20 are selectively turned on. In addition, when the light is turned on, its color is also controlled.

FIG. 5 and FIG. 6 show the flow of operation of the arithmetic unit 18 in this embodiment. Further, FIG. 7 shows an outline of the arithmetic processing in this embodiment.

The calculation unit 18 executes the operation shown in FIG. 5 at a predetermined frequency. To perform this action,
The calculation unit 18 first determines what mode is set by the user (200). The modes include, for example, a target mode in which targets existing around the own ship are displayed and a destination mode in which the own ship target course is displayed based on the destination information supplied from the navigation device 12. When the calculation unit 18 determines that the target mode is set, the process relating to the restriction of the target 102 is subsequently executed (202). In this process, when a large number of targets exist around the ship, if all the targets are displayed, the display by the display device 20 will be complicated and the usability will be reduced. This is a process performed for the purpose. FIG. 6 shows an outline of this processing.

As shown in FIG. 6, in limiting the target object 102, the calculation unit 18 first determines whether or not a beacon is received by the beacon receiver 14 (204). That is, when a beacon such as EPIRB is received, it is necessary to preferentially display the direction of the target that transmitted this beacon, so the beacon-transmitted target is set as the target of interest (206). When the beacon is not received by the beacon receiver 14, it is determined whether or not any of the targets is tracked by the ARPA of the radar device 10 (208). When it is determined that the tracked target is present as a result of this determination, the calculation unit 18 sets the tracking target to the target target 1
It is set to 02 (210). When the target is not tracked, the calculation unit 18 determines whether or not any fixed target (cape, lighthouse, etc.) is designated in advance by the operator 100 (212). If there is a designation, the target at the designated position (latitude, longitude) is set as the target 102 (214). If there is no designation, the target of interest is not displayed.

The calculation unit 18 limits the target object 102 and detects the distance r _T and the relative azimuth θ _T to the target object 102 (218). This distance r _T and azimuth θ _T
The information on the information is provided by the radar device 10 and the own ship's heading detection device 21, or is obtained by calculating using the designated position information in addition to the own ship position information from the navigation device 12.

The arithmetic unit 18 compares the distance r _T thus obtained with a predetermined value (220), and when the distance r _T is larger than the predetermined value, the emission color of the display device 20 is blue (222), and when it is smaller. Is set to red (224), respectively. After setting the emission color in this way, the calculation unit 18 detects the position of the operator by using the operator position sensor 16, specifically, the mat switch 22 (226). As shown in FIG. 7, the position w _{L of the} operator 100 with reference to the left end of the display surface 28 of the display device 20 and the operator's position 10 from the display surface 28.
If the distance r _{F to} 0 is known, the position where the line connecting the marine vessel manipulator 100 and the target 102 intersects the display surface 28, d = w
By calculating _L + r _F tan θ _T , it is possible to know the left end of the display surface 28 as a reference. The display position d changes depending on the place where the boat operator 100 stands. In addition, ship operator 1
The line connecting 00 and the target object 102 is different from the line connecting the radar device 10 and the target object 102, but in reality, as shown in FIG. 3, the distance r between the radar device 10 and the target object 102 is r. _T and the distance r _T between the ship operator 100 and the target 102
Since ′ can be regarded as almost equal, this difference can be ignored.

The calculation unit 18 calculates the display position d based on the above equation (228), and based on the result, the display device 20.
A control signal is applied to the LED to cause the LED at the display position d to emit light (230).

By this processing, the necessary target object 102
Will be displayed at the top of the window,
With 0, the position of the target can be quickly known without looking at the radar image displayed by the radar device 10.
Further, even when the visibility of the marine vessel manipulator 100 is obstructed, such as at night or during rainfall, the display is performed based on the direction θ _T obtained by the radar device 10, so that the safety during marine vessel maneuvering is high. Furthermore, since the target that transmitted the beacon, the target being tracked, and the target at the designated position are selected and displayed, the device has good safety and usability.

Further, when it is determined in the above-mentioned step 200 that the mode is the destination mode, the calculation unit 18 first inputs the destination information from the navigation device 12 (232), and the azimuth θ based on the input destination information. Detect _TN (23
4). The direction θ _TN thus detected represents the course of the own ship with reference to true north or the like. After the execution of step 234, the azimuth θ _T is detected with reference to the azimuth θ _TN (23
6) Further, step 226 is executed to calculate the display position d and control the display. Therefore, according to the present embodiment, the own ship target course can be displayed if necessary,
Further, this display can be read by the boat operator 100 with one operation.

Although the mat switch 22 is used as the marine vessel operator position sensor 16 in the above description, the structure of the sensor is not limited to such a structure. Further, in the above description, the emission color of the display device 20 is changed according to the distance r _T of the target object 102, but the display mode may be such that blinking is performed instead of changing the color. . Furthermore, what kind of target is the target 1
Whether to select 02 can be appropriately designed.

[0026]

As described above, according to the present invention,
The light emitting element is arranged along the circumference of the room and close to the window, and the display position on this light emitting device is determined based on the detected direction of the target and the position of the user. By looking at the effective element row, the person can know the direction of the target with one operation. Also, since the display position changes according to the color change of the user, even if the user moves in the room, the display position will change with this movement, making it a highly usable device. Become. As a result, it is possible to realize a device that can contribute to safer marine vessel maneuvering.

Further, according to the present invention, since the distance of the target is detected and the light emitting mode of the light emitting element, for example, the color, blinking or the like is set according to the detection destination, the user relates to the distance to the target. It is possible to know the information while outlining,
It is possible to obtain a device that contributes to usability and safety.

Further, according to the present invention, since the target object to be displayed is limited under a predetermined condition, the light emitting display by the light emitting element array is complicated when a large number of target objects exist in the surroundings. It is possible to prevent the situation that usability is reduced.

According to the present invention, when the destination information is obtained from the navigation device, the display position is obtained based on this information and the position of the user, and the light emitting element at the obtained display position is caused to emit light. Therefore, it becomes possible to read the own ship target course by one operation if necessary.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of an apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing a usage state of the apparatus of this embodiment.

FIG. 3 is a diagram showing a positional relationship between a target of interest and a ship in this embodiment.

FIG. 4 is a perspective view showing a configuration of a boat operator position sensor.

FIG. 5 is a flowchart showing a flow of operation of a calculation unit in this embodiment.

FIG. 6 is a flowchart showing a flow of operations of a calculation unit in this embodiment.

FIG. 7 is a conceptual diagram showing how the display position is changed depending on the position of the operator.

[Explanation of symbols]

10 radar device 12 navigation device 14 beacon receiver 16 ship operator position sensor 18 arithmetic unit 20 display device 21 own heading detection device 22 mat switch 24 switch such as small tact switch 26 switch scanning device 28 display surface 100 ship operator 102 attention object Target r _T Distance to target θ _TN Absolute azimuth of target (North) θ _T Heading difference between target and own bow θ _HN Absolute azimuth of own bow (North) r _F Show as operator Plane distance w _L Position of the ship operator relative to the left edge of the display surface d Display position

Claims (4)

[Claims] 1. A light emitting element array arranged along the circumference of a room and close to a window, means for detecting the orientation of a target and the position of a user, and based on the orientation of the target and the position of the user. A target azimuth, comprising: a means for obtaining a display position; and a means for displaying the azimuth by causing the light emitting element at the obtained display position among the plurality of light emitting elements forming the light emitting element row to emit light. Display device. 2. The target azimuth display device according to claim 1, further comprising: a unit that detects a distance of the target; and a unit that changes a light emitting mode of the light emitting element according to the detected distance. Target orientation display device. 3. The target orientation display device according to claim 1, further comprising means for limiting the target to be displayed to a target satisfying a predetermined condition. 4. The target azimuth display device according to claim 1, further comprising means for obtaining a display position based on the destination information and the position of the user when the destination information is obtained from the navigation device. Target orientation display device.