JPH04187038A - Control device of boat - Google Patents

Abstract

PURPOSE:To efficiently carrying out fishing operation by simple operation by automatically controlling pulling of fishing net from the beginning to the last of pulling of fishing net according to velocity of fishing boat at each predetermined stage so as to maintain the fishing boat at the velocity. CONSTITUTION:Velocity of fishing boat at each stage in pulling of fishing net is previously memorized. For example, when an automatic pattern of pulling fishing net is selected, velocity of fishing boat is controlled according to the memorized pattern while measuring time by a controlling means depending upon each operation and each stage. When a switch, etc., are manually handled at each stage, velocity of fishing boat is automatically controlled corresponding to the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for controlling the running speed of a ship, particularly a fishing boat that performs fishing operations such as seine seining.

Traditional fishing boats that carry out seine fishing operate at low speeds during fishing operations, but the speed is not the same throughout the operation and must be changed for each individual operation.

This kind of seine work is carried out in the order of casting net, towing net, and lifting net, but when casting the net, the engine speed is set at a relatively high speed of 250 orpm, and then the boat speed is set to extremely low speed to bring the net to the appropriate depth. After letting the net sink, the speed is increased step by step and the net is raised little by little to capture the fish, and finally the speed is reduced and the net is lifted. Conventionally, when changing the speed during fishing work, the operator used a regulator handle to change the speed while checking the timing by looking at a clock. Additionally, the depth at which the net is sunk needs to be changed depending on the water depth of the place where the work is to be carried out, and for this purpose, the timing of changing the boat speed must be changed, that is, the time for each step of increasing the speed after casting the net. However, in the past, this was also done by the worker using a clock to measure the timing.

Problems to be Solved by the Invention As mentioned above, in the past, when changing the speed of a boat during fishing work, the worker used a watch to measure the timing, which had the disadvantage of making the work extremely tedious. Ta.

The purpose of this invention is to provide a control device that can almost automatically change the boat speed in view of the fact that the fishing pattern of seine fishing is almost fixed. .

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a changing means for changing the sailing speed of a vessel, and a means for changing the sailing speed of a vessel, and a means for controlling the sailing speed according to a predetermined control pattern or using human power means for the sailing speed. It is characterized by comprising a control means for outputting a control signal to the cruise speed changing means in response to an operation.

The boat speed for each stage during seine netting is stored in advance. For example, if an automatic seine pattern is selected, the control means will adjust the speed according to the memorized pattern while measuring the time according to each task and stage. Therefore, the ship speed is controlled. Also,
When manually operating switches etc. for each stage,
The control device automatically controls the ship's speed according to the operation.

Embodiment FIG. 5 shows an overall outline of the control device of the present invention. In the figure, (1) is an engine, (2) is a reduction/reversing machine attached to this engine (1), and the engine After the power of (1) is decelerated or reversed by this deceleration/reversal gear (2), it is transmitted from the output shaft (3) to the propeller shaft (4) side. This deceleration/reversal gear (2) is provided with two forward speeds and a reverse speed. (9) is a handle device for operation, and this handle device (9) includes:
Forward/forward switching handle (1
0) and a regulator handle (11) for adjusting the engine speed.

(12) is a regulator lever that adjusts the fuel injection amount of the engine, and a DC motor (13) as an actuator that rotates the regulator lever (12) is connected to this regulator lever (12). There is. Further, an engine rotation sensor (14) is attached to the engine (1) to detect the rotation speed of the engine. On the other hand, the reduction/reversing gear (2) includes an electromagnetic switching valve (15) as an actuator for switching the reduction gear in the forward gear (hereinafter referred to as the reduction gear switching valve).
A forward/reverse switching valve (16) is attached to the forward/reverse switching valve (16), and the forward/reverse switching handle (10) is connected to the push-pull cable (I7).
) are connected by. Further, the speed reduction/reversing gear (2) is provided with a forward position sensor (19) for detecting the position of the clutch on the forward side.

(18) indicates a controller for increasing or decreasing the rotational speed of the engine or controlling switching of the deceleration switching valve (15). This controller (18) is a so-called microcomputer, and internally contains a CPU (Central Processing Unit) that manages various controls and calculations, a ROM (Read Only Memory) that stores control programs, etc., and various detection data, etc. It is equipped with RAM (random access memory) for storing data. On the other hand (22),
This is an operation panel placed in the driver's seat of a vessel, etc., and this operation panel includes an auto-manual changeover switch (23) for selecting either automatic control mode or manual control mode, and an automatic control mode during seine netting. A changeover switch (24) is provided for selecting. The controller (18) includes each switch (23) (
24) is input manually, and the controller (18) controls the engine speed as described later to control the boat speed according to the selection.

The controller (18) also includes a detection signal from the engine rotation sensor (14), a feedback signal from the DC motor (13), a detection signal from the propeller rotation sensor (28) that detects the propeller rotation speed, and a deceleration switch. A signal from a detection means (30) for detecting the switching position of the valve (15) and a signal from a clutch engagement position sensor (19) are input.

Further, the rotational operation of the regulator handle (11) is transmitted to the accelerator sensor (32) via the push-pull cable (31),
) is manually sent to the controller (18). And this controller (18
), a control signal is output to the DC motor (13) so that the engine speed becomes a predetermined speed. Similarly, the speed reduction gear switching signal of the controller (18) is output to the speed reduction switching valve (15), and the speed reduction switching valve (15) is automatically switched based on the signal. On the other hand, when the auto-manual selection switch (23) is switched to the manual side, the -speed/second speed selection switch (27) (
26), the signal is input to the controller (18), which issues an output signal to switch the deceleration switching valve (15).

Next, when the auto-manual changeover switch (23) on the operation panel (22) is switched to the auto side, and the rotation control mode selection switch (24)
) will be explained according to the respective flowcharts.

Figure 6 is a graph of the change pattern of engine speed and reduction gear speed in seine fishing.First, in the first net casting operation, the speed reducer is reduced to a small speed of 250 or
The rotational speed is increased in two steps to pm, and when this net casting is finished, the speed is reduced to nearly 600 rpm and the speed reducer is switched to large speed reduction, and then from N1 to N.
The netting operation is carried out by increasing the speed at each stage of time jl, i2 to t, .

Two methods of automatically changing the ship speed in such work include a method in which the worker operates a switch at each stage and automatically controls the ship speed accordingly, and a method in which the time and ship speed for each stage are changed automatically. There is a method of storing the time and ship speed in advance and automatically changing the time and ship speed based on the stored information. Note that changing the ship speed includes both a method of controlling the engine regulator to change the rotation speed, and a method of switching the reduction stage of the reducer between small reduction and large reduction.

FIG. 4 shows the flow of work for presetting the time and engine speed for each stage.

When the automatic control setting mode is selected (step 1, indicated by circled numbers in the figure; the same applies hereinafter), first stage i=1 is set and that stage is displayed (step 2.3). In this state, the operator manually enters the time TI required for stage 1 using a switch, and then inputs the number of rotations n during that time, and thereby the time and ship speed of the first stage are stored. This operation is repeated until stage 1 reaches the final stage, and the required time T and number of revolutions N for each stage are all memorized.

Fig. 1 shows the control flow in which the ship speed is automatically controlled by the operator operating the switch for each stage, regardless of the set time T shown in Fig. 4 above. After confirming that this is not an emergency, automatic control mode 1 is selected using the mode selection switch, and the stage switching switch is pressed. conduct. After that 2
When the switch is pressed for the second time, the engine speed N2 is controlled to reach the second stage ship speed. In this way,
The control is repeated up to the N stage where fishing ends. Note that when controlling the engine speed N, switching control of the reducer is also performed.

FIG. 2 shows the times t1 to 1. which are stored in advance as described above.
Accordingly, all controls are performed automatically (automatic control mode 2), and when such automatic control mode is selected, as shown in the flowchart, the pre-stored ship speed, that is, engine rotation, Performs switching control between the number N and deceleration stage.

In addition to the control shown in Fig. 4 above, Fig. 3 shows a system in which the time control is automatically changed according to the water depth (
Automatic control mode 3). That is, when this automatic control mode is selected and the water depth of the work place is manually determined from the fish finder, a map of set times for each water depth stored in advance in the program is read, and according to the read time, This controls the ship speed at each stage.

Effects of the Invention As described above, this invention automatically controls the ship speed at each predetermined stage from the beginning to the end of the seining process, so it is not possible to use the conventional method. Another advantage is that there is no need for the operator to timely operate the regulator lever while looking at a clock, making the work easier and allowing the fishing work to be carried out more efficiently.

[Brief explanation of the drawing]

1 is a flowchart showing the flow of automatic control of the present invention, FIGS. 2 and 3 are flowcharts showing other embodiments, and FIG. 4 is a flowchart showing the flow of work for setting the automatic mode. FIG. 5 is a block diagram showing an outline of the engine control device, and FIG. 6 is a time chart showing changes in the engine rotational speed during seining work. 1...Engine, 13...DC motor, 18...
controller. Patent Applicant: Yanmar Diesel Co., Ltd. Representative Patent Attorney Hisayuki Tarumoto 4t4

Claims (1)

[Claims] A changing means for changing the running speed of a vessel, and a control for outputting a control signal to the sailing speed changing means in accordance with a predetermined control pattern or in response to an input operation of the sailing speed input means during seining work. A control device for a ship, comprising: means.