JPH1159579A - Swing control method and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce steers man burden for discovering a failure, monitoring and judgement by displaying the monitoring of an operation condition of a local controller, the acquisition of data from measuring instrument of a whole ship, and the judgement and condition of a control situation in the whole ship by the central control operation. SOLUTION: A local controller, an acceleration sensor, and a controlled position sensor are provided with local controllers 1b...1n, acceleration sensors 2b...2n, controlled position sensors 3b...3n, and fin drive parts 4b...4n singly for other fins and perform the local control singly per fin. A central controller 5 performs the whole control of the local controllers (1a...1n). Signals from the central controller 5 start and stop the local controllers at on and off modes, acquire data from central controllers 1 (1a...1n), and display the judgement of a control situation and a condition of a whole ship to achieve the predetermined purposes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sway control method and apparatus for reducing the sway of a hull in waves.

[0002]

2. Description of the Related Art As one of the methods for reducing the sway of a hull such as pitching and rolling, there is a method by controlling the angle of attack of a fin (hydrofoil).

A plurality of fins are provided on the front, rear, left and right sides of the hull, and it is necessary to control the angle of attack or the swing amount of the fins according to the pitching or rolling of the hull.

[0004] A plurality of the fins are provided, and a plurality of measurement sensors such as an inclination sensor and an acceleration sensor for detecting the vertical or horizontal movement of the hull are also mounted on the hull.

[0005] The control of a plurality of fins is performed by signals from a plurality of measurement sensors.
A so-called centralized control process of processing signals from a plurality of measurement sensors and controlling each fin is performed.

Recently, distributed processing has also been proposed, but control of a plurality of fins on a hull is hardly applied because the control method becomes difficult.

Although there are several examples using a plurality of arithmetic units (CPUs), the invention disclosed in Japanese Patent Application Laid-Open No. 3-224892 discloses a set of four fins for pitching control and rolling control. This is a method of selecting and controlling independently.

The invention disclosed in Japanese Patent Application Laid-Open No. 6-166396 is to individually control a plurality of fins simultaneously based on two control factors of pitching and rolling.

The invention disclosed in Japanese Patent Publication No. Hei 6-508584 performs only a single-function process locally.

[0010]

Generally, when there are a plurality of objects to be controlled, there is a merit of a centralized management system in which control is performed by one control device, but there is a demerit that a processing system becomes complicated. In the invention disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 3-224892, pitching and rolling are processed by separate control arithmetic units. It is necessary to collect data in this apparatus, and the disadvantage of the centralized management method remains as it is.

The invention disclosed in Japanese Patent Application Laid-Open No. 6-166396 has separate pitch control means and roll control means. However, since the control of each fin is performed collectively through the lift distribution calculation means, centralized management is required. The disadvantage of the method is that it remains as it is.

In the invention disclosed in Japanese Patent Publication No. 6-508584, when a plurality of fins are provided, individual processing for each fin only corresponds to overload, and the set value for each fin is There is a problem that the demerit by the centralized management method remains as it is performed by the power allocating unit.

In some cases, it is not necessary to make a decision at the center for a local to generate a control signal for each controller. From the viewpoint of reducing the wiring length and speeding up the control, the local processing is performed. It is much better to do.

[0014] On the other hand, if all operations are performed in the local processing, the ship operator has to pay attention to each processing module, which imposes a heavy burden.

In addition, it is difficult to evaluate the overall motion when the processes of the individual control systems are put together, or disadvantages such as an increase in the burden on finding a failure and monitoring and judging the operator are likely to occur.

An object of the present invention is to solve the above-mentioned problem.

[0017]

A first means for solving the above-mentioned problem is to independently control a plurality of fins arranged on a hull by a local controller by signals from an acceleration sensor and a position displacement sensor to be controlled. This is a shaking control method that drives and centrally controls overall control for each local control based on measurement signals from a gyro and a hull acceleration sensor.

A second means for solving the above-mentioned problem is to provide a local control for each fin which controls a fin driving unit by receiving signals from an acceleration sensor and a position displacement sensor to be controlled on a plurality of fins arranged on the hull. And a central control unit that controls the local controller with a gyro, a hull acceleration sensor, and a measurement signal from the local controller.

According to the above-mentioned means, a local controller is disposed for each fin to be controlled, and the local controller is provided with a signal of an acceleration sensor and a signal of a position displacement sensor to be controlled, which are provided for each fin. In response to this, fin control is independently performed based on this.

The central control monitors the operation state of the local controller, obtains data from measuring equipment of the entire ship, determines the control state of the entire ship, and displays the state.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a vibration control method and apparatus according to the present invention.

FIG. 1 is a control block diagram according to a vibration control device of the present invention.
(2a) is an acceleration sensor for shaking the hull, 3 (3)
a) is a control target position displacement sensor for detecting a displacement of the position of the control target which is a fin and transmitting a signal, and 4 (4a) is a fin drive unit.

The local controller 1 receives the measurement signals from the acceleration sensor 2 and the position displacement sensor 3 to be controlled, and controls the drive unit 4 for one fin.

The local controller, the acceleration sensor, and the position displacement sensor to be controlled are independently used for other fins as the local controllers 1b... 1n and the acceleration sensor 2b.
.2n and the controlled object position displacement sensors 3b..3n,
The fin drive units 4b... 4n are provided, and local control is independently performed for each fin.

Reference numeral 5 denotes a central controller for controlling the local controller 1, reference numeral 6 denotes a gyro for detecting the direction of the hull, reference numeral 7 denotes a hull representative acceleration sensor, and reference numeral 8 denotes a display for displaying the control status of the central controller 5. is there.

In the present invention, the fins 40, 41 attached to the front, rear, left and right of the hull 9 in FIG. 2 (perspective view) are controlled by the local controller 1 (1a... 1n). The overall control of the units 1 (1a... 1n) is controlled by the central controller 5. Therefore, the signal from the central controller 5 starts and stops the local controller 1 (1a... 1n) in the on / off mode, and the central controller 5 transmits the signal to the local controller 1 (1a... 1n). And obtains the data from the ship, and judges the control status of the entire ship and displays the status.

[0027]

Since the present invention is as described above, the control of the fins is first performed by the local controller, so that the control processing is speeded up and the control is stabilized.

Further, there is an advantage that the burden on the central controller is reduced, which leads to strengthening of the response to the occurrence of a failure, and furthermore, the amount of wiring is reduced and the cost is reduced.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing an embodiment of a fluctuation reducing device according to the present invention.

FIG. 2 is a perspective view of a fluctuation reducing device according to the present invention.

[Explanation of symbols]

 1 (1a... 1n) Local controller 2 (2a... 2n) Acceleration sensor 3 (3a... 3n) Control target position displacement sensor 4 (4a... 4n) Driver 5 Central controller 6 Gyro 7 Hull acceleration sensor 8 Indicator 9 Hull 40 Fin 41 Fin

Claims (2)

[Claims] A local controller controls and drives a plurality of fins arranged on a hull individually by a local controller based on signals from an acceleration sensor and a control target position displacement sensor, and controls the entire gyro and hull acceleration for each local control. A sway control method that performs central control based on measurement signals from sensors. 2. A fin-based local controller for controlling a fin drive unit by receiving signals from an acceleration sensor and a control target position displacement sensor, wherein a plurality of fins arranged on a hull are provided;
A shaking control device, comprising: a central controller for controlling the local controller with a gyro, a hull acceleration sensor, and a measurement signal from the local controller.