JPH10325720A - Measuring apparatus for wave height and shore-approaching speed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To measure a wave height and a shore-approaching speed by means of one apparatus, by a method wherein an are in which an ultrasonic sensor is attached at its tip is coupled to a support so as to be bendable. SOLUTION: A control part 9 which detects that an arm 2 is horizontal makes an ultrasonic sensor 3 transmit a high-frequency current. Ultrasonic waves T are transmitted toward the surface of he sea 5 from the ultrasonic sensor 3, reflected ultrasonic waves R are received by the ultrasonic sensor 3, the waves are inputted to the control part 9, and a wave height is measured. After a port entrance permission is reported to a ship 6, an arm 2 is turned by 90 deg. from its present horizontal position to be vertical by an instruction signal from the control part 9. The control part 9 which detects the verticality of the arm 2 makes the ultrasonic sensor 3 transmit a high-frequency current. Ultrasonic waves T are transmitted to the ship 6 from the ultrasonic sensor 3, reflected ultrasonic waves R from the ship 6 are received by the ultrasonic sensor 3, and its electric signal is inputted to the control part 9. The control part 9 measures the shore-approaching speed of the ship 6 on the basis of a received signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave height and berthing speed measuring device, and more particularly to an aerial type wave height and berthing speed measuring device.

[0002]

2. Description of the Related Art Conventionally, when a ship enters a port, the wave height near the berth pier where the ship is anchored is first measured, and then the berthing speed which is the speed of the ship approaching the berth pier is measured. That is well known.

In this case, conventionally, the wave height and the berthing speed have been measured by the apparatus shown in FIG.

[0004] In FIG. 4, a column 100 is erected on a berth pier 107, an ultrasonic sensor 101 is attached to the tip of the column 100, and another ultrasonic wave is mounted on the berth pier 107. The sensor 103 is attached.

[0005] Among them, the ultrasonic wave is transmitted toward the sea surface 106 by using the ultrasonic sensor 101 attached to the column 100 to measure the wave height, and the ultrasonic sensor 103 attached to the berth pier 107 is measured. And the ultrasonic wave 104 is transmitted to the ship 105 to measure the berthing speed.

[0006]

However, the above-mentioned prior art (FIG. 4) has the following problems. That is, as described above, in the apparatus of FIG. 4, the wave height meter and the berthing speed meter are separately installed so that the wave height is measured by the ultrasonic sensor 101 and the berthing speed is measured by the ultrasonic sensor 103.

Therefore, when a new device is installed,
The installation place must be secured separately for the wave height meter and the berthing speedometer, so that the installation work must be performed at different places, which is troublesome and time-consuming.

When the apparatus is maintained after the apparatus is installed, for example, parts must be replaced separately for the wave height meter and the berthing speed meter. Similarly, it is very cumbersome and time consuming.

[0009] In addition, construction and maintenance costs are associated with the cumbersome and time-consuming installation and maintenance of the above devices.

That is, conventionally, since the wave height and the berthing speed were measured by different devices, the work was cumbersome, time-consuming, and expensive in terms of installation and maintenance.

An object of the present invention is to measure the wave height and berthing speed with a single device, thereby simplifying the work contents, shortening the work time, and further reducing the cost for installation and maintenance. It is in.

[0012]

Means for Solving the Problems To solve the above problems, the present invention relates to the following. B. having a column 1 and an arm 2; B. The arm 2 has an ultrasonic sensor 3 attached to the tip thereof and is bendably coupled to the support 1. When measuring the wave height, the arm 2 is horizontal and the ultrasonic sensor 3 is opposed to the sea surface 5, and when measuring the berthing speed, the arm 2 is vertical and the ultrasonic sensor 3 is opposed to the ship 6. It has taken the technical measures.

Therefore, according to the configuration of the present invention, the wave height and the berthing speed can be measured by one device, and the work contents can be simplified with respect to installation and maintenance of the device, and the work time can be reduced. It works to shorten the time and to further reduce the cost.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall view showing an embodiment of the present invention, and FIG. 2 is a detailed view showing an embodiment of the present invention.

A. 1. Configuration In FIG. 1, reference numeral 1 denotes a column, 2 denotes an arm, 3 denotes an ultrasonic sensor, 4 denotes a cable, 5 denotes a sea surface, 6 denotes a ship, 7 denotes a joint, 8 denotes a berth pier, 9 denotes a control unit, and 10 denotes a control unit. Cable.

The strut 1 is erected on a berth pier 8 on which a ship 6 is anchored, and is fixed firmly with concrete.

The arm 2 is connected to the column 1 so as to be able to bend, and an ultrasonic sensor 3 is attached to a tip of the arm 2. A rust preventive is applied to the column 1 and the arm 2 so that the column 1 and the arm 2 are not rusted by seawater or the like.

As is well known, the ultrasonic sensor 3 is a transmitter / receiver having both a transmitter and a receiver.
A high-frequency current S3 is input from a transceiver 9E (FIG. 3) described below to transmit an ultrasonic wave T toward the sea surface 5 or the ship 6,
The reflected ultrasonic wave R is received and converted into an electric signal S4 (FIG. 3).

One end of a cable 4 is connected to the ultrasonic sensor 3, and the cable 4 extends downward through the arm 2 (FIG. 2). The cable 4 further passes through an opening 78 formed in the top surface 77 of the support 1, penetrates the support 1 and extends to the control unit 9 (FIG. 3), and the other end of the cable 4 is connected to the control unit 9. I have.

Thus, the wave height and the berthing speed are measured by the arithmetic and control unit 9B constituting the control unit 9 as described later.

The details of the joint 7 between the column 1 and the arm 2 are shown in FIG.

That is, in FIG. 2, a bearing portion 70 is provided on the top surface 77 of the column 1 on the opposite side with respect to the arm 2, and the bearing portion 70 has an inner wall 70A and an outer wall 70B.
And the interior is a hollow chamber.

Each of the bearing portions 70 is coated with a rust preventive and is sealed by a seal member, so that the built-in motor M, shafts 71 and 74 and gears 72 and 73 are protected from seawater and the like.

The arm 2 is disposed between the two bearings 70, and at the lower portion of the arm 2, as shown, shafts 71 are fixed to both sides, and each shaft 71 is It is protruding.

The shaft 71 extends to the inside of each bearing 70, and is rotatably supported by bearings 76 and 75 attached to the inner wall 70A and the outer wall 70B of each bearing 70.

On the other hand, a gear 72 is fixed to the shaft 71,
The gear 72 meshes with a gear 73 having a smaller diameter, and the gear 73 is fixed to a rotation shaft 74 of the motor M.

With this configuration, the rotation of the motor M built in the bearing 70 is transmitted to the shaft 71 via the parallel two-axis rotation transmission mechanism including the gears 73 and 72, and
Is adapted to rotate to a horizontal position or a vertical position between two bearing portions 70, that is, to rotate in a vertical plane (FIG. 1).

The motor M is, for example, a pulse motor, and is fixed to the top surface 77 of the column 1. The motor M is connected to one end of a cable 10.
9 (FIG. 2 (A)), it enters the column 1 and extends downward, and the other end is connected to the control unit 9.

With this configuration, the motor M is controlled by the NC 9C constituting the control section 9 as described later (FIG. 3).
Controlled.

FIG. 3 is a circuit configuration diagram for implementing the present invention. In the figure, the control unit 9 includes an input unit 9A,
It comprises an arithmetic control unit 9B, an NC 9C, an output unit 9D, and a transceiver 9E.

The input section 9A is, for example, a keyboard, and is a device for selecting whether the arm 2 is to be horizontal or vertical. To enter. For example, when the ten key "1" is hit, a selection signal for leveling the arm 2 is a control signal S1, and when the ten key "2" is hit, a selection signal for the arm 2 is vertical as a control signal S1, and the operation control unit 9B To enter. In addition, the input unit 9A is configured as shown in FIG.
A signal representing the start, stop, restart, etc. of the device of FIG.
Is input to the arithmetic control unit 9B.

The arithmetic control unit 9B is, for example, a CPU.
According to the selection signal S1 from the input unit 9A, the NC 9C
By controlling the motor M via the controller, the rotation of the arm 2 is controlled, and by controlling the ultrasonic sensor 3, the wave height or the berthing speed is calculated. In addition, the arithmetic control unit 9B takes charge of controlling the entire apparatus shown in FIG.

The NC 9C numerically controls the motor M constituting the coupling unit 7 of the present invention based on the control signal S6 transmitted from the arithmetic control unit 9B.

The output section 9D is, for example, a CRT, and displays the current angular position θ of the arm 2 (FIG. 1), the wave height or the berthing speed calculated by the calculation control section 9B on the screen.

The transceiver 9E transmits to the ultrasonic sensor 3 a high-frequency current S3 having power necessary for transmitting the ultrasonic wave T by the instruction signal S2 of the arithmetic and control unit 9B. , And transmits the amplified received signal S5 to the arithmetic and control unit 9B.

B. Operation Hereinafter, the operation of the present invention having the above configuration will be described. (1) Rotational movement of the arm 2 to the horizontal position First, when the ten key “1” of the input unit 9A is hit, the arm 2
Is input to the arithmetic and control unit 9B.

As a result, the arithmetic control unit 9B calculates a command value to make the arm 2 horizontal, and converts the command value to the control signal S.
When the control signal S6 is transmitted to the NC 9C as NC 6, the NC 9C converts the received control signal S6 into a pulse train, and the pulse train is transmitted to the motor M as the control signal S7.

The motor M that has received the control signal S7 starts to rotate, and the rotation is transmitted to the shaft 71 via a parallel two-axis rotation transmission mechanism including gears 73 and 72 shown in FIG. The arm 2 to which 71 is fixed rotates.

As a result, the arm 2 is rotated by a predetermined angle from the current position and becomes horizontal (solid line in FIG. 1). As a result, the transmitting and receiving surface of the ultrasonic sensor 3 faces the sea surface 5. That is, the ultrasonic sensor 3 faces the sea surface 5. The state of the arm 2 at this time is displayed on the screen of the output unit 9D (FIG. 1).

(2) Measurement of Wave Height Next, upon detecting that the arm 2 has become horizontal by the control signal S6 from the NC 9C, the arithmetic and control unit 9B transmits an instruction signal S2 to the transceiver 9E, The high-frequency current S3 is transmitted toward No.3.

Accordingly, the ultrasonic wave T is transmitted from the ultrasonic sensor 3 toward the sea surface 5, and the ultrasonic wave R reflected on the sea surface 5 is received by the ultrasonic sensor 3 and converted into an electric signal S4. Further, the signal is amplified by the transceiver 9E, and the received signal S5 is input to the arithmetic and control unit 9B.

The arithmetic control unit 9B receives the received signal S5
The wave height is measured based on. In this way, the arithmetic control unit 9B measures the wave height at each predetermined time.

The change in the wave height at this time is determined by the output unit 9.
D is displayed on the screen.

(3) Rotational Movement of Arm 2 to Vertical Position When the change in wave height displayed on the screen of the output unit 9D does not interfere with the entry of the vessel 6, the vessel 6 is notified of a port entry permission. .

After the entry permission is notified to the vessel 6, the transceiver 9E interrupts the transmission of the high-frequency current S3 and transmits the ultrasonic wave T from the ultrasonic sensor 3 by the instruction signal S2 from the arithmetic and control unit 9B. Is temporarily stopped. Then, when the ten key “2” of the input section 9A is hit, a selection signal S1 for verticalizing the arm 2 is input to the arithmetic control section 9B.

As a result, the arithmetic and control unit 9B calculates a command value to make the arm 2 vertical, and converts the command value to the control signal S.
When the control signal S6 is transmitted to the NC 9C as NC 6, the NC 9C converts the received control signal S6 into a pulse train, and the pulse train is transmitted to the motor M as the control signal S7.

The motor M that has received the control signal S7 starts to rotate, and the rotation is transmitted to the shaft 71 via a parallel two-axis rotation transmission mechanism including gears 73 and 72 shown in FIG. The arm 2 to which 71 is fixed rotates.

As a result, the arm 2 rotates by a predetermined angle, that is, 90 ° from the current horizontal position, and becomes vertical (broken line in FIG. 1). As a result, the transmitting / receiving surface of the ultrasonic sensor 3 faces the boat 6. That is, the ultrasonic sensor 3 faces the boat 6. The state of the arm 2 at this time is displayed on the screen of the output unit 9D (FIG. 1).

(4) Measurement of berthing speed Next, the arithmetic and control unit 9B, which has detected that the arm 2 has become vertical by the control signal S6 from the NC 9C, transmits an instruction signal S2 to the transceiver 9E, The high-frequency current S3 is transmitted to the sensor 3.

As a result, the ultrasonic wave T is transmitted from the ultrasonic sensor 3 toward the ship 6 (broken line in FIG. 1),
After being received by the ultrasonic sensor 3, the ultrasonic wave R reflected by the is converted into an electric signal S4 (FIG. 3), further amplified by the transceiver 9E, and the received signal S5 is input to the arithmetic and control unit 9B.

The arithmetic control unit 9B receives the received signal S5
The berthing speed is measured based on. In this way, in the arithmetic control unit 9B, the berthing speed is measured at each predetermined time, and displayed on the screen of the output unit 9D. Also,
This berthing speed is notified to the ship 6 from the operator of the control center. Thus, the ship 6 berths at the berth pier 8 while maintaining an appropriate berthing speed.

In the present embodiment shown in FIGS. 1 to 3, the arm 2 is configured to be automatically rotated by the motor M. However, the present invention is not limited to this. And only the bearing 70 (the gears 72 and 73 and the motor M are not incorporated), and the arm 2 is
It is needless to say that the same effect can be obtained even if the rotation is manually performed.

The control unit 9 is linked with a radar (not shown) so that the ship 6
The same effect as described above can also be obtained by driving the motor M constituting the connecting portion 7 in FIG. 2 to automatically rotate the arm 2 to the vertical position when the arm 2 approaches a predetermined distance.

[0054]

As described above, according to the present invention, when an arm having an ultrasonic sensor attached to the tip thereof is flexibly connected to a support and the wave height is measured, the arm is kept horizontal and the When the sonic sensor is opposed to the sea surface and the berthing speed is measured, the arm is vertical and the ultrasonic sensor is opposed to the ship, so that the wave height and the berthing speed can be measured by one device. With respect to the installation and maintenance of the system, the technical effects of simplifying the work content, shortening the work time, and further reducing the cost have been achieved.

[0055]

[Brief description of the drawings]

FIG. 1 is an overall view showing an embodiment of the present invention.

FIG. 2 is a detailed diagram showing an embodiment of the present invention.

FIG. 3 is a circuit configuration diagram for implementing the present invention.

FIG. 4 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 support 2 arm 3 ultrasonic sensor 4, 10 cable 5 sea surface 6 ship 7 connection part of support 1 and arm 2 8 berth pier 9 control unit 9A input unit 9B calculation control unit 9C NC 9D output unit 9E transceiver 70 bearing unit 70A Inner wall 70B Outer wall 71 Arm 2 shaft 72, 73 Gear 74 Rotary shaft of motor M 75, 76 Bearing 77 Top surface of column 1 78, 79 Opening M Motor

Claims (7)

[Claims] An ultrasonic sensor is attached to the tip of the arm, and the arm is coupled to the arm in a bendable manner. When measuring a wave height, the arm must be horizontal. If the ultrasonic sensor is facing the sea surface to measure the berthing speed,
A wave height and berthing speed measuring device, wherein the ultrasonic sensor is opposed to a ship with the arm being vertical. 2. The connecting portion between the column and the arm includes a shaft fixed to a lower portion of the arm and protruding laterally, and a bearing portion fixed to a top surface of the column and rotatably supporting the shaft. The wave height and berthing speed measuring device according to claim 1, wherein: 3. The bearing portion is formed by a chamber having an inner wall and an outer wall, and a bearing is attached to each of the inner wall and the outer wall, and a shaft of the arm is rotatably mounted on the bearing portion via the bearing. The wave height and berthing speed measuring device according to claim 2, which is supported. 4. A motor is built in the bearing portion,
4. The wave height and berthing speed measuring device according to claim 3, wherein a gear fixed to a rotating shaft of each motor meshes with a gear fixed to a shaft of the arm in the bearing portion. 5. The motor is controlled by an NC, and the rotation of the motor M is transmitted to the axis of the arm via a parallel two-axis rotation transmission mechanism composed of the two gears to make the arm horizontal or vertical. The wave height and berthing speed measuring device described. 6. The wave height and berthing speed measuring device according to claim 1, wherein a rust preventive is applied to the support and the arm. 7. The bearing portion is coated with a rust preventive and is sealed by a seal member.
The wave height and berthing speed measuring device described.