JPH0522068Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a branch line tie signal generator for long line fisheries such as tuna long line fisheries, and in particular, it is concerned with a branch line tie signal generation device for long line fisheries such as tuna long line fisheries. This invention relates to a device that generates a signal that is a signal for tying a rope and a floating ball.

Prior Art In tuna longline fishing, when a mainline is thrown into the sea from a rigging machine on a ship, a floating line with floating balls fixed at regular intervals is attached to the mainline, and appropriate ropes are attached to the mainline. Branch ropes with bait attached are tied at intervals.

To tie the branch ropes and floating balls to the main rope, a branch rope tying signal generator is generally used that emits a signal sound at regular intervals when the main rope is let out. At the sound of the sound, branch ropes and floating balls are tied to the main rope that is being cast from the rope machine. Therefore, by changing the period of the signal sound emitted from the main rope tying signal generator, it is possible to appropriately adjust the interval at which branch ropes are tied.

Problems that the invention aims to solve However, in the case of such conventional means of tying branch lines and floating balls to the main line, the period of the signal sound is determined by relying on the past experience or intuition of the fishery chief. The problem is that the spacing between the branch lines does not always maintain the optimum spacing. Furthermore, it is unclear what shape the main line is in the sea after it has been set, and the water depth of the bait at the tip of each branch line is also unclear, so for example, the frequency of the signal sound may be changed when fishing is poor. Even if such measures are taken, there is a problem in that they cannot be sufficiently reflected in the improvement of fishing yields. In tuna fishing in particular, it is known to be effective to suspend bait in the thermocline, a region of water where the water temperature changes extremely. It is not possible to perform branch rope tying work that involves hanging bait in a concentrated manner.

Therefore, the present invention solves the problems of conventional branch line tying signal generators used in longline fishing, and aims to always tie branch lines in the optimal position in response to various conditions. The purpose is to provide a device that can do this.

Means for Solving the Problems In order to achieve the above-mentioned purpose, the present invention has an input section for inputting various data such as rope speed, main line length between floating balls, and ship speed, and an arithmetic processing unit that calculates a longline curve as a quadratic function curve based on data; and a calculation processing unit that displays the quadratic function curve as an image in conjunction with the arithmetic processing unit; and an input unit that displays the quadratic function curve on the displayed longline curve. an image display unit that displays branch ropes at a plurality of arbitrary positions set through the image display unit; and a signal generation unit attached to the arithmetic processing unit that generates a branch rope binding signal corresponding to the set positions. Provided is a branchline tie signal generating device for longline fishing, which is characterized by:

Effects According to the present invention having the above configuration, when various data of the casting conditions such as the casting rope speed, the length of the mainline between floating balls, and the boat speed are inputted from the input section, the arithmetic processing section calculates the longline curve as a quadratic function curve, and the image display section displays the quadratic function curve as an image. A signal generating section attached to the arithmetic processing section connects the branch ropes in response to a plurality of branch rope positions set visually through the input section at arbitrary positions on the quadratic function curve. Generates a signal to
Therefore, the operator can secure the most suitable tying position by tying the branch line and floating ball to the main line based on the signal obtained from the signal generating section.

Embodiment An embodiment of the branch line tie signal generating device for longline fishing according to the present invention will be described below with reference to the drawings.

Fig. 1 is a block circuit diagram showing the basic configuration of the present invention, and numeral 1 in the figure is an input section for inputting various data. Examples include speed 3, ship speed 4, etc. Reference numeral 5 denotes an arithmetic processing section, which has a function of calculating a longline curve as a quadratic function curve based on the data from the input section 1. Reference numeral 6 denotes an image display section, which displays the graph of the quadratic function curve as an image in conjunction with the arithmetic processing section 5. 7
is a signal generating section, and the signal generating section 7 is attached to the arithmetic processing section 5 and generates signals at arbitrary plural positions set by the input section 1 on the longline curve displayed on the image display section 6. It is designed to generate a signal to tie the branch ropes together.

Fig. 2 shows an example of a longline displayed on the image display section 6, in which the horizontal axis shows the distance between floating balls, the vertical axis shows the water depth, and 8 is a cursor line for water depth. , 9 shows the longline curve. The branch line 10 can be freely moved on the longline curve 9 by setting from the input unit 1, and can be freely changed to the position of the branch line 10a shown by the broken line, for example. 10b and 10c are branch ropes set in this way, and it is possible to set a necessary number of branch ropes.
Further, by moving the water depth cursor line 8 in the vertical direction, the water depth position can be known. Therefore, it is possible to easily set the required number of branch ropes at the thermocline water depth which has been investigated in advance.

Figure 3 shows an example of how the branch ropes 10 are tied together in the sea. In the figure, 11 is the main rope, 12a,
Reference numeral 12b indicates a floating ball, and reference numeral 13 indicates a floating line, and the illustrated example shows a case in which five branch lines 10 with baits 14 attached to their tips are suspended from the main line 11.

The main rope 11 is suspended between the floating balls 12a and 12b, and forms a curve obtained by moving a quadratic function curve passing between the floating balls 12a and 12b downward by the length of the floating rope 13 in parallel.

Now, the distance between each branch rope 10 shown in Figure 3 is l1,
Assuming l2,...l6, the total length L of the main rope 11 between the floating balls 12a, 12b is L=l1+l2+...+l6...(1). On the other hand, the distance D between the floats 12a and 12b is expressed as D=(L/W)×S (2), where W is the rope speed and S is the boat speed.

Now, assuming that the position of the floating ball 12a in the drawing is the origin, the horizontal direction is the X axis, and the vertical direction is the Y axis, the main rope 11 is expressed by a quadratic function of the following equation (3).

Y=f(x)=ax(X-D) ……(3) a: Constant Also, the total length L of main rope 11 is L=∫ ^D ₀ √1+{′()} ² dx ……(4) Given. By substituting the above equations (2) and (3) and solving the equation (4), the constant a of the above equation (3) is determined, and the quadratic function equation f(x) is determined.

When the rigging speed 2 (W), main rope length between floating balls 3 (L) and ship speed 4 (S) are input to the input section 1 shown in FIG. quadratic function f
(x) is determined, and the curve of the function f(x) is displayed on the image display section 6 as a longline curve that is moved downward in parallel by the length of the floating rope 13.

In Figure 3, the X of the branch rope binding position on the main rope 11
If the coordinates are x1, x2, x3, x4, x5 from the left, then l1
~l6 is determined by the sequential arithmetic processing unit 5 as follows.

l1=∫ ^{X1 0} √1+{′( ⁾ } ² dx l2=∫ ^{X2 X1} √1+{′()} ^{2 dx} 〓 l5=∫ ^X5 Therefore, after throwing in the floating ball 12a, the signal generating unit 7 connects the first branch line after l1/W time, and the second branch line (l1
+l2)/W time later, (l1+l2+l3)/W
After hours, (l1+l2+l3+l4)/W after hours, (l1+l2+
A signal is generated at intervals after l3+l4+l5)/W time and after L/W time. Therefore, the worker must use the signal generator 7.
By sequentially tying the branch lines 10 to the main line 11 in accordance with the above-mentioned signals emitted from the main line 11, it is possible to obtain a branch line tying state in which the optimum tying interval is maintained according to the conditions at that time. can.

Effects of the Invention As explained in detail above, the branch line tie signal generator for longline fishing according to the present invention has an input section for inputting various data such as the setting line speed, the length of the main line between floating balls, and the boat speed. and an arithmetic processing unit that calculates the longline curve as a quadratic function curve based on the data of the input unit, and displays the quadratic function curve as an image in conjunction with the arithmetic processing unit, and displays the displayed longline curve as an image. an image display section that displays branch ropes at a plurality of arbitrary positions set via the input section; and an arithmetic processing section that generates a branch rope binding signal corresponding to the set positions. Since the structure is made up of a signal generating section, the following effects can be obtained. In other words, the period of the signal sound when tying branch lines and floating balls to the main line can be adjusted without simply relying on the experience or intuition of the fishery chief.
By inputting various data such as sling speed, main line length between floats, and ship speed into the input section in advance, the branch line tying position can be visually set on the longline curve calculated by the processing section. Based on the signal sound that is automatically generated in accordance with this setting position, it is possible to concentrate bait in the thermocline, and it is possible to tie branch lines and floating balls that are most suitable for the conditions at the fishing ground. The distance can be obtained quickly and easily. Therefore, this has the great advantage of being able to quickly reflect improvements in fishing results depending on each fishing ground.

[Brief explanation of the drawing]

Fig. 1 is a block circuit diagram showing an embodiment of the branchline binding signal generation device for longline fishing according to the present invention, Fig. 2 is a graph showing an example of a longline curve displayed on the image display section, and Fig. 3 1 is a schematic diagram showing an example of binding a branch rope to a main rope. 1... Input section, 2... Throwing rope speed, 3... Main rope length between floating balls, 4... Vessel speed, 5... Arithmetic processing unit, 6
... Image display section, 7 ... Signal generation section, 8 ... Cursor line for water depth, 9 ... Longline curve, 10 ... Branch line,
11... Main rope, 12a, 12b... floating ball, 13...
...Floating rope, 14...Bait.

Claims (1)

[Scope of utility model registration request] an input section for inputting various data such as slinging speed, mainline length between floating balls, and ship speed; an arithmetic processing section for calculating a longline curve as a quadratic function curve based on the data of the input section; an image display unit that displays the quadratic function curve as an image in conjunction with the arithmetic processing unit, and displays branch lines at any plurality of positions set via the input unit on the displayed longline curve; and a signal generating section attached to the arithmetic processing section that generates a branch line tying signal in accordance with the set position.