JPH08175487A - Hull state monitoring and control device - Google Patents

Abstract

PURPOSE: To provide an economical hull state monitoring and control device which reduces the work load of a crew and contrives to automate a ship and eliminate or reduce personnel and labor. CONSTITUTION: A hull state monitoring and control device. which regularly analyzes and monitors hull state data of acceleration and longitudinal bending stress respectively obtained by an accelerometer 1 fitted on the bow a longitudinal bending stress gage 2 fitted on the upper deck during navigation of a ship, is provided with a propulsion controller 5 and a rudder angle controller 6 which respectively controls a propulsion apparatus 7 and a rudder 8 so as to make an andio data-containing audio alarm output device 4 output an audio alarm and simultaneously make an alarm value automatically return to a normal value, when a data exceeding an alarm reference value is measured by a data monitor 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitor and control system for the condition of a hull during navigation.

[0002]

2. Description of the Related Art Conventionally, a system as shown in FIG. 6 has been adopted as a means for monitoring the condition of a ship under operation. In the figure, data from the accelerometer 1 and the longitudinal bending stress meter 2 are collected in the data monitoring device 3. The data monitoring device 3 has a built-in alarm reference value 9 and an alarm determination reference time. When the measurement data continuously exceeds the reference value 9 for more than the determination reference time, an alarm message display device 11 and an alarm sound (beep) are displayed. The sound generation device 12 displays a message and issues an alarm by a beep sound.

[0003]

However, in such a conventional system, the alarm issued when the measured data exceeds the alarm reference value is almost always a combination of a beep sound and a display on the display. When an alarm is issued, the crew member must go to the display device to check the details of the alarm. Also,
After confirming the facts, it is necessary to maneuver to reduce the alarm. By the way, various types of devices for collecting data of various sensors attached to ships and monitoring them as operation data have already been developed and have achieved good results.

The present invention has been proposed in view of the above circumstances, and provides an economical ship condition monitoring and control system which reduces the work load on crew members and automates the ship and saves labor and labor. The purpose is to do.

[0005]

To this end, the present invention is directed to acceleration and longitudinal bending stress data obtained by an accelerometer attached to the bow portion and a longitudinal bending stress meter attached to the upper deck portion, respectively, while the vessel is in operation. In a ship condition monitoring and control device that constantly analyzes and monitors fluctuations in data, when a data monitoring device measures excessive data that exceeds the alarm reference value, an audio alarm output device with built-in audio data outputs an audio alarm and automatically. In particular, it is equipped with a propulsion device, a propulsion control device that controls the rudder, and a rudder angle control device so that the excessive data can be returned to normal values.

[0006]

According to this structure, the data monitoring device for collecting and monitoring data, the voice alarm output device for receiving and outputting signals from this device, the propulsion control device and the steering angle control device are respectively configured as follows. The following actions are performed. (1) Data monitoring device The data of the accelerometer and longitudinal bending stress meter installed on the ship are constantly collected. The collected data is compared in advance with the alarm reference value built into the data monitoring device, and if the built-in alarm judgment reference time is exceeded, the alarm is judged, and if it is judged to be outside the reference value, the information is transmitted to the voice alarm output device. To do. When the automatic control is set in advance, the operation amount and the controlled object are determined from the difference between the alarm reference value and the measured value, and these pieces of information are transmitted to the propulsion control device and the steering angle control device. (2) Voice alarm output device Based on the information received from the data monitoring device,
Select and output the corresponding voice output pattern. The voice output pattern built into the voice warning output device is divided into the cases where the propulsion control and the steering angle control are set to the automatic position and the cases where they are not set, and the extent to which the reference values for acceleration and longitudinal bending stress are exceeded. Depending on the, you will be registered in several stages. (3) Propulsion control device and rudder angle control device Based on the information transmitted from the data monitoring device,
The propulsion control device operates propulsion equipment to increase or decrease ship speed,
Further, the rudder angle control device changes the rudder angle by operating the rudder.

[0007]

1 is a block diagram showing a ship condition monitoring system, FIG. 2 is a process flowchart of the ship condition monitoring system shown in FIG. 1, and FIG. 3 is an output voice thereof. Judgment flow chart,
FIG. 4 is a flowchart of the control output, and FIG. 5 is an output voice pattern diagram when the automatic control is set (propulsion, steering angle).

First, in FIGS. 1 and 2, the output data from the vertical acceleration sensor 1 attached to the bow portion and the vertical bending stress gauges 2 arranged on both sides of the upper deck central portion are data monitoring devices. Collected in No. 3, the vertical acceleration of the bow, the hull stress generated during sagging, and hogging are measured. Here, in block A3 of FIG. 2, whether or not to execute automatic control when the measured value exceeds the alarm reference value is set on the monitoring control device. For example, in response to a message on the CRT, "Do you want to execute automatic control?", Enter "YES" and "NO" by operating the keyboard. Alternatively, set automatic control to “on” or “off”. In the block A3, when the automatic control setting is cancelled, an alarm sound is output, but the steering angle, the propulsion device, etc. are not controlled. The data monitoring device 3 has a built-in alarm reference value 9 and an alarm reference time. When the measured value continuously exceeds the alarm reference value 9 for the alarm determination reference time or longer, the voice alarm output device 4 outputs the alarm target signal type. And the measured value is output. The voice alarm output device 4 compares the received data with the built-in voice output pattern, and selects the output voice data 10 corresponding to the situation when the alarm is detected. FIG. 3 is a flowchart for determining the output voice at that time.
As shown in, depending on whether or not automatic control is selected,
Further, the output voice is identified and announced by the alarm target signal and how much the reference value is exceeded. FIG. 5 shows, as an example, a pattern diagram of the output voice when the automatic control is set, and the voice pattern is prepared even when the automatic control is not set.

When the automatic control for reducing the alarm value is preset, the gain is obtained from the difference between the alarm reference value and the measured value, and the operation amount is calculated from the gain, as shown in FIG. , The result is the steering angle control device 6,
It is transmitted to the propulsion control device 5. Based on the received information, the steering angle control device 6 and the propulsion control device 5 change the steering angle by operating the rudder 8 and operate the propulsion device 7 to increase or decrease the boat speed.

[0010]

As described above, according to such a device, the contents of the detected alarm can be immediately grasped by the voice without the crew member looking at the display display or the like. Get faster Also, from the aspect of automation, alarms are detected from both acceleration and longitudinal bending stress,
Since they are automatically judged and controlled to normalize,
It is possible to play a part in the automation of the ship, which has the effect of reducing the work load on the crew.

In summary, according to the present invention, during the operation of a ship,
A data monitoring device gives an alarm in a ship condition monitoring and control device that constantly analyzes and monitors changes in acceleration and longitudinal bending stress data obtained by an accelerometer attached to the bow and a longitudinal bending stress meter attached to the upper deck. When excessive data exceeding the reference value is measured, a sound alarm output device with built-in sound data outputs a sound alarm, and at the same time, the propulsion equipment and rudder are automatically adjusted to restore the excess data to their normal values. By providing the propulsion control device and rudder angle control device for controlling, it is possible to reduce the work load on the crew, and to obtain an economical ship condition monitoring control device that automates the ship and saves labor and labor. The invention is extremely useful in industry.

[Brief description of drawings]

FIG. 1 is a block diagram showing a supervisory control system according to an embodiment of the present invention.

FIG. 2 is a processing flowchart of FIG.

FIG. 3 is a flowchart of output voice determination of FIG.

FIG. 4 is a flowchart of the control output of FIG.

5 is an output voice pattern diagram at the time of automatic control setting (propulsion, steering angle) in FIG.

FIG. 6 is a block diagram showing a conventional ship body condition monitoring control system.

[Explanation of symbols]

 1 Accelerometer 2 Longitudinal bending stress meter 3 Data monitoring device 4 Voice alarm output device 5 Propulsion control device 6 Steering angle control device 7 Propulsion equipment 8 Rudder 9 Alarm reference value 10 Voice data 11 Alarm message display device 12 Warning sound (beep sound) Generator

Claims (1)

[Claims] 1. While the ship is in operation, the acceleration and longitudinal bending stress data obtained by an accelerometer mounted on the bow and a longitudinal bending stress meter mounted on the upper deck are respectively analyzed and monitored for the condition of the hull. In the supervisory control device, when the data monitoring device measures excessive data exceeding the alarm reference value, an audio alarm output device with built-in audio data outputs an audio alarm and automatically sets the excessive data to normal values. A monitor and control device for the state of a ship, which is equipped with a propulsion device, a propulsion control device that controls the rudder, and a rudder angle control device so that the propulsion device is restored.