JPS6222017A - Directional difference display device for automatic steering device - Google Patents

Abstract

PURPOSE:To maintain to steer a ship safely by indicating the direction of the destination of the ship and the direction of the bow on the straight graduations indicating a value of a directional difference of a directional difference indicator and indicating that the direction of the bow is positioned on the right or the left of the direction of the destination with the directional difference indicator. CONSTITUTION:The direction A of the bow and the direction B of the destination are inputted to a directional difference signal generator 12 and for instance, a signal that the direction A is the directional difference theta2 on the left side with respect to the direction B is outputted to an indication range deciding device 13 and a directional difference signal cutter 14. The deciding device 13 outputs an indication range deciding signal D1 in case the directional difference is within 20 deg. and an indication range deciding signal D2 in case the directional difference is over 20 deg. to the cutter 14 respectively and outputs a directional difference direction signal E2 indicating that the direction A is positioned on the left side of the direction B to a directional difference direction indicator 16. Then, the indicator 16 lights an indication lamp by the input of the signal E2 and the directional difference theta indicates that the direction A is the directional difference theta2 which is positioned on the left side of the direction B.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an azimuth difference display device for an automatic steering system used in ships such as cargo and passenger ships and fishing boats.

(Prior art) Conventionally, the heading of a ship during navigation has been determined based on cargo, speed, sea conditions,
Due to weather, etc., the destination position does not always match the predetermined destination position. Therefore, the own ship's destination position is determined in advance with a direction setting device, the own ship's heading is detected with a direction detector, and the destination position is determined in advance. An automatic steering system has been proposed that detects a difference in the heading of the ship and automatically controls the rudder by an amount corresponding to the difference in heading to match the heading of the own ship with the destination position.

In this case, as shown in FIG. 4, the heading A is located on the right side of the predetermined destination position B
and a heading A2 located on the left side. Therefore, the azimuth difference θ, which is the difference between the destination position B and the heading A, is the first azimuth difference 01 between azimuth B and azimuth A, and the first azimuth difference 01 between azimuth B and azimuth A.
, which difference is the second orientation difference θ2.

As shown in FIG. 5, the display range of the azimuth difference θ on the display panel surface 1 of the azimuth difference display device 5 is such that the azimuth difference θ is 20 degrees, and the azimuth difference θ2 is 20 degrees. Linear scale 2 that displays the orientation difference in °
The ship's heading A is displayed at the center of the arrow 3, and the destination position B is displayed at the arrow 4.

FIG. 5 shows that the ship's heading A is on the left side with respect to the destination position B, and has an azimuth difference 02 of 5 degrees.

This makes it possible to easily know the destination position B, the heading A, and the azimuth difference 0I or θ2 between these.

(Problems to be Solved by the Invention) In this conventional heading difference display device for an automatic steering system, the automatic steering system controls the rudder at regular time intervals so that the heading A matches the destination position B. Therefore, the orientation difference θ1, 0.0 value usually indicates a small value such as 3° to 5°. Therefore, the display range of the orientation difference θ3.θ2 is 1
For example, with the heading A as the center of the linear scale 2,
It is limited to 0°.

However, due to sea conditions, weather, etc., the orientation difference θ1. θ2
may exceed the display range indicated by linear scale 2,
In such a case, as shown in FIG. 6, the pointing arrow 3 for the heading A is displayed, but the pointing arrow 4 for the destination position B is not displayed on the linear scale 2.

In this way, the orientation difference θ! , θ2 indicates a value exceeding the display range, it is determined whether the heading A is located to the right or to the left of the destination position B, and furthermore, the azimuth difference θ1. It becomes unclear what value θ2 is. Therefore,
This has to be calculated based on the separately detected destination position B and heading A, and there is a problem in that the direction in which the own ship should change course cannot be immediately recognized.

In order to solve this conventional problem, the present invention, in addition to displaying the conventional heading A and destination position B, displays the respective heading difference directions when the heading difference θ is the heading difference θ1 or the heading difference θ2. It is an object of the present invention to provide an azimuth difference display device for an automatic steering system that can display the azimuth difference.

(Means for solving the problems) Means for solving the above-mentioned conventional problems will be explained using FIGS. 1 to 3 corresponding to embodiments.

The present invention provides a predetermined destination position B of the own ship from the azimuth setting device 11 and a heading A of the own ship from the azimuth detector 10.
is input, and a first or second heading difference θ1. The azimuth difference signal generator 12 outputs the azimuth difference signals C, , C2 corresponding to the type and value of θ2, and the azimuth difference signals C, , C, are input, and the azimuth differences θl, θ are input.
2 is within a predetermined display range, D, and the azimuth difference direction indicating the first azimuth difference 0I when the ship's heading A is located to the right of the destination position B. Signal E1
Or, a display range determiner 13 that outputs a bearing difference direction signal E2 indicating a second bearing difference θ2 when the heading A is located to the left of the destination position B, and a bearing from the bearing difference signal generator 12. Difference signal C1 or C2 and azimuth difference display determination signal D
1 or D2 is input and the judgment signal D is within the 1 display range.
A azimuth difference signal disconnector 14 that outputs the azimuth difference signal CI or C2 if it is 1, and stops outputting the azimuth difference signal C8 or C2 if the determination signal D2 is outside the display range; Azimuth difference signal C from 14! Or input C2 and the heading A from the heading detector 10.

Direction difference indicator 1 that displays destination position B and heading A
5 and 9 Input the azimuth difference direction signal E1 or Ez from the display range determiner 13, and determine whether the difference between the destination position B and the heading A is the first azimuth difference θ凰 or the second azimuth difference 02. and an azimuth difference direction indicator 16 that displays.

(Function) In the device configured in this way, the heading A and the destination position B are input to the heading difference signal generator 12, and the heading difference is such that the heading A is located to the right of the destination position B. A bearing difference signal C1 corresponding to θ□ or a bearing difference signal C corresponding to a bearing difference θ2 in which the ship's heading A is located to the left of the destination position B
2 is output to the display range determiner 13 and the azimuth difference signal disconnector 14.

The display range determiner 13 displays an azimuth difference indicating whether the azimuth difference signal CI or Cz is within or outside the display range of the linear scale that displays the azimuth difference θ1, 02 values of the azimuth difference display 15. The judgment signal D1 or D2 is outputted to the azimuth difference signal cutter 14, and the azimuth difference direction signal E1 or Ez indicating the azimuth difference θ1 or C2 is outputted to the azimuth difference direction indicator 16.

The azimuth difference direction indicator 16 displays the left and right indicator lamps L and R when the azimuth difference direction signal B is input.

The right display U/P is turned on, and the direction of the heading difference θ indicates that the heading difference θ3 is where the heading A is located to the right of the destination position B. Also, the heading difference direction signal E2 is input. and lights up the left indicator lamp L.

The direction of the azimuth difference 0 is a azimuth difference 0I in which the ship's heading A is located to the left of the destination location B, is indicated by .

When the azimuth difference display determination signal D1 is input, the azimuth difference signal disconnector 14 transmits the azimuth difference signal CI or C2 to the azimuth difference display 1.
However, if the azimuth difference display determination signal D2 is input, the output of the azimuth difference signal CI or C2 to the azimuth difference display 15 is stopped. As a result, the heading difference display 15 receives the heading A and the heading difference signal C1 or C2 within the display range, and displays the heading A and the destination position B on the linear scale as indicated by arrows 3 and 4, respectively. , the value of the orientation difference θ1 or C2 can be known.

The lighting display of the lamps L and R of the azimuth difference direction indicator 16 indicates that the respective values of azimuth difference 0I and θ are not only within the display range indicated by the linear scale 2 of the azimuth difference indicator 15 but also outside the display range. Therefore, even if the value of the azimuth difference θ2.02 exceeds the display range and it becomes impossible to display the destination position B on the azimuth difference display 15 with the indicator arrow 4, the heading A and the destination position B can be changed. The direction of the azimuth difference 01, 0□ can be easily known.

(Example) The present invention will be explained below with reference to embodiments shown in FIGS. 1 to 3.

In Fig. 1, 10 is a direction detector for detecting the own ship's heading A, 11 is a direction setting device for setting the own ship's destination position B, and 12 is an input device for inputting the ship's heading A and destination position B. , a bearing difference signal generator that outputs a bearing difference signal Cs or C2 corresponding to the type and value of the first bearing difference θ list or the second bearing difference θ2 of the difference between the destination position B and the heading A; inputs the azimuth difference signal C1 or C2, and outputs the azimuth difference θ1 or C
Direction difference display determination signal DI indicating whether or not 2 is within the display range
or a display range determiner which outputs D2 and an azimuth difference direction signal E or Ez indicating the azimuth difference θ1 or 02; 14 inputs the azimuth difference signal CI or C2 and the azimuth difference display judgment signal D1 or D2 and makes a 1 judgment; 15 is a azimuth difference signal disconnector that outputs the azimuth difference signal C or C2 in the case of a signal lid and stops outputting the azimuth difference signal C1 or C2 in the case of a 1 judgment signal D2; The azimuth difference signal C1 or C2 and the heading A from the azimuth detector 10 are input, and as shown in FIGS. θ1. A linear scale 2 whose value of θ2 is, for example, a maximum of 20', and an indicator arrow 3 indicating the heading A. An azimuth difference indicator 16 having an indicator arrow 4 indicating the destination position B is provided with display lamps L and R on the upper left side and right side of the azimuth difference indicator 15, and a azimuth difference direction signal E1 or E2 is inputted. When the direction signal E1 is input, the indicator lamp is lit and the heading A is the destination B.
If the azimuth difference direction signal E2 is input, the display lamp L lights up to indicate that the heading A is to the left of the destination B. It is a direction indicator.

Next, the operation of the azimuth difference display device configured as described above will be described.

Now, at a certain time, the ship's heading A from the direction detector 10
is located on the left side of the destination position B preset by the azimuth setting device 11, and has an azimuth difference θ2 equal to the difference between the destination position B and the heading A.

The heading A and the destination position B are input to the azimuth difference signal generator 12, and the azimuth difference signal C2 corresponding to the azimuth difference θ2 is sent from the azimuth difference signal generator 12 to the display range determiner 13 and the azimuth difference signal cutter. 14.

The display range determiner 13 determines the orientation difference θ based on the orientation difference signal C2.
2 is within the maximum 20° that can be displayed on the azimuth difference display 15, and if the azimuth difference θ2 is within 20', a display range judgment signal is issued, and if the azimuth difference θ2 is greater than or equal to For example, the display range determination signal D2 is output to the azimuth difference signal disconnector 14, and the azimuth difference direction signal E which means that the heading A is located to the left of the destination position B due to the azimuth difference θ2 is output.
2 is output to the azimuth difference direction indicator 16.

The heading difference direction indicator 16 lights up the display lamp L in response to the input of the heading difference direction signal E2, and the heading difference θ is determined by the heading direction A.
It is displayed as shown in FIG. 2 that the orientation difference θ2 is located to the left of the destination location B.

On the other hand, the direction difference signal cutter 14 determines the 9 display range.
[If the signal DI is input, the azimuth difference signal C2 input from the azimuth difference signal generator 12 is output to the azimuth difference display 15.

As a result, the heading difference display 15 receives the heading A and the heading difference signal C2 from the heading detector 10, and as shown in FIG. is displayed at the center of display scale 2 indicating destination position B.
is indicated by arrow 4. In this case, it can be immediately seen that the heading A is located on the left side with respect to the destination position B, and the azimuth difference θ2 is 5°.

If the display range determination signal D2 is input to the azimuth difference signal cutter 14, the azimuth difference θ2 is 200 or more.

The azimuth difference signal cutter 14 stops outputting the azimuth difference signal C2 input from the azimuth difference signal generator 12 to the azimuth difference display 15.

As a result, the azimuth difference display 15 displays only the heading A from the azimuth detector 10 as an indicator arrow 3, as shown in FIG.

In the above example, when the heading A is located to the left of the destination position B, the value of the azimuth difference θ2 is 5°, which is within the display range of the azimuth difference display 15, and 20' or more, which is outside the display range. As described above, the display of the azimuth difference and azimuth difference direction was described, but when the heading A is located to the right of the destination position B with a azimuth difference θ1, the azimuth difference signal CI is output from the azimuth difference signal generator 12. 1, the display range determination signal D2 and the azimuth direction signal E are outputted from the display range determination device 13, and the display lamp R is lit on the azimuth difference direction indicator 16, and the - azimuth difference display 15 The orientation difference mentioned above is 0.
The same operation as in case 2 is performed by the azimuth difference signal disconnector 14, and the azimuth difference θ! Then, the pointing arrow 4 for the destination position B is displayed.

Similarly, if the value of the orientation difference θ is 2O2 or more, the pointing arrow 4 for the destination position B is not displayed.

(Effects of the Invention) As explained above, according to the present invention, the destination position and the heading of the own ship are displayed on the linear scale displaying the value of the difference in heading of the heading difference display, and the difference in heading is confirmed. In addition to making sure that the ship's heading is on the right side of the destination position,
Or, since the azimuth difference direction display that indicates whether the azimuth difference is located on the left side is displayed on the azimuth difference direction indicator installed in parallel with the azimuth difference display, the value of the azimuth difference is the azimuth difference of the azimuth difference display. Even if the value exceeds the display range, the direction of the difference in heading, such as whether the ship's heading is to the right or to the left of the destination position, can be immediately determined, and the direction of the ship's course is clear. This has the effect of ensuring safe ship operation.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment according to the present invention.
Fig. 4 is an explanatory diagram of the relationship between the destination position, the heading, and the azimuth difference, and Figs. 5 and 6 are display explanatory diagrams showing conventional examples of display of the azimuth difference. 1...Display panel surface, 2...・Linear scale, 3
... Indicating arrow for heading direction, 4... Indicating arrow for destination position, 10... Direction detector, 11... Direction setter, 1
2... Azimuth difference signal generator, 13... Display range determiner, 14... Azimuth difference signal cutter, 5.15... Azimuth difference indicator, 16... Azimuth difference direction indicator + AI+ A2
... Heading, B... Destination position θ1. θ2...
Azimuth difference, L, R, ... Azimuth difference direction indicator lamp. Patent applicant: Japan Radio Co., Ltd. "Figure M2 Figure 40 Figure 5 Figure M6

Claims (1)

[Scope of Claims] With respect to the destination position of the difference between the own ship's destination position predetermined by the heading setter and the own ship's heading detected by the bearing detector, the ship's heading is to the right or In an automatic steering system that detects a first or second azimuth difference located on the left side and controls the rudder to match the heading of the ship with the destination position by an amount corresponding to these azimuth differences, the azimuth setting device a heading difference signal generator that receives a destination position from the ship and a heading from the heading detector and outputs a heading difference signal corresponding to the type and value of the first and second heading differences; An azimuth difference signal from a difference signal generator is input, and an azimuth difference display judgment signal indicating whether the above azimuth difference is within a predetermined display range and an azimuth indicating whether the above azimuth difference is a first or second azimuth difference. a display range determiner that outputs a difference direction signal, and inputs the orientation difference signal from the orientation difference signal generator and the orientation difference display determination signal from the display range determiner, so that the orientation difference display determination signal outputs the An azimuth difference signal disconnector that outputs the azimuth difference signal when the azimuth difference signal is within a predetermined display range, and stops outputting the azimuth difference signal when the azimuth difference display determination signal is outside the predetermined display range; A bearing difference display that inputs the bearing difference signal from the bearing difference signal disconnector and the heading from the bearing detector and displays the destination position and the heading, and a bearing difference from the display range determiner. A direction signal is input, and the difference in direction between the destination position and the heading is determined as the first direction.
Or, an azimuth difference direction indicator for indicating that the azimuth difference is a second azimuth difference.