JP3133192B2 - Underwater probe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater exploration apparatus, and more particularly to a display of an underwater exploration apparatus mounted on a ship or the like and transmitting and receiving ultrasonic pulse beams in four directions underwater to perform underwater exploration.

[0002]

2. Description of the Related Art An underwater exploration apparatus mounted on a ship or the like and transmitting and receiving ultrasonic pulse beams in four directions in the sea to perform underwater exploration of a school of fish and an object to be searched is well known. FIG. 2 is a diagram for explaining the outline of the configuration and operation of this type of conventional underwater exploration apparatus. In FIG.
A transmitter / receiver for transmitting / receiving an ultrasonic pulse beam in a direction, a transmitter / receiver 2 for transmitting a signal transmitted / received by the transmitter / receiver 1A as an electric signal, a control device 4 for controlling the entire device,
A is a display device.

As shown in the lower diagram of FIG. 2, the transmitting and receiving directions of the ultrasonic pulse in the conventional apparatus are the first beam in the bow direction, the second beam in the direction perpendicular to the bow direction, and the stern direction. Is a third beam, and a fourth beam from the stern direction to the right angle direction is a predetermined depression angle (60 in this example).
), These beams are transmitted and received, and a reflected signal for each beam is displayed on the display device 4A. The dotted arrow indicates the image feed direction.

The display of the display device 4A is as shown in FIG.
Each beam is vertically divided and displayed, and a distance scale in the beam direction (this is referred to as a direct distance) is provided as a distance scale, thereby determining the position and distance of the object to be searched. For example, a direct distance of 100 m in the direction of the fourth beam
If a school of fish is present in the vicinity, a fish shadow is displayed in the vicinity of a distance 100 m directly from the display position of the fourth beam of the display device 4A. Therefore, the direction and distance of the fish school must be determined based on the fish shadow.

[0005]

Since the conventional underwater exploration apparatus is constructed and operates as described above, it is impossible to accurately grasp the object to be searched only by reading the display device unless a skilled and experienced person. There was a point.

That is, since the transmitting and receiving directions of each beam and the display direction of the display device do not match, the position direction of the object to be searched cannot be conceptually grasped, and the distance information includes horizontal distance and water depth (vertical distance). ) And can only read a direct distance. Furthermore, there is a device that includes an arithmetic device and calculates the horizontal distance and the vertical distance from the direct distance and displays the numerical value.
It is not an appropriate method for simple devices.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is possible to grasp the direction ideally with a simple configuration similar to that of the conventional device, and to use a horizontal distance in each direction without using an arithmetic unit. It is another object of the present invention to provide an underwater probe capable of reading the vertical distance.

[0008]

According to the underwater exploration apparatus of the present invention, when the bow direction is set to a direction of 0 degree, the first beam is rotated clockwise at a direction of about 45 degrees and the first beam is rotated at a direction of about 135 degrees. A second beam at a direction of about 225 degrees,
The fourth beam is transmitted and received in a direction of about 315 degrees, the display screen is divided into four parts, the first beam is displayed on the upper right screen, the second beam is displayed on the lower right screen, and the fourth beam is displayed on the lower left screen. The third beam is displayed on the upper left screen, and the fourth beam is displayed at the center of the display screen at a distance of 0, and the direct distance scale, the horizontal distance scale, and the vertical distance scale are displayed in the horizontal direction of the display screen. I decided to attach it.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG.
FIG. 1 is a block diagram for explaining the configuration and operation of one embodiment of the present invention. In the drawing, 1 is a transducer for transmitting and receiving an ultrasonic pulse beam in four directions underwater at a predetermined depression angle,
Reference numeral 2 denotes a transceiver, which includes a transmitter for supplying high-frequency power to the transmitter / receiver 1 and a receiver for amplifying a reception signal output from the transmitter / receiver 1. Reference numeral 3 denotes a control device that controls the entire device, and 4 denotes a display device that displays a reflected signal output from the receiving unit.

[0010] As shown in the lower diagram of the drawing, the transmitting and receiving direction of the ultrasonic pulse of the transducer 1 in this embodiment is as follows, assuming that the direction of the bow is 0 degree, the first beam is 45 degrees clockwise, and
The second beam is emitted at 135 degrees, the third beam is emitted at 225 degrees, the fourth beam is emitted at 315 degrees, and each is emitted at a predetermined depression angle (60 degrees in the embodiment). The power required to emit an ultrasonic pulse beam is determined by the transceiver 2
Supplied by Each of the emitted beams hits an object to be searched, such as a school of fish, and is reflected. The reflected wave is received again by the transmitter / receiver 1, converted into an electric signal, and supplied to the transceiver 2. The transceiver 2 amplifies the supplied electric signal to a required level and supplies the amplified electric signal to the display device 4.

The display screen of the display device 4 in this embodiment is divided into four parts vertically and horizontally, and the first beam is shown at the upper right,
The lower right is the second beam, the lower left is the third beam, and the upper left is the fourth beam.
The vertical line at the center of the screen indicates the position at a distance of 0, and the horizontal scale, the direct distance scale, and the vertical scale are set so that the horizontal direction of the screen from the 0 point is the same distance direction. Is provided. The horizontal scale and the vertical scale can be easily displayed by multiplying cos θ (depression angle) and 1 / sin θ from the direct distance.

Here, as shown in the lower diagram of FIG.
If a school of fish is present at a distance of about 100 m in the direction of the beam, the display device 4 displays a fish shadow in a substantially similar direction (that is, a direction approximately 315 degrees clockwise from the bow direction). Thus, it is possible to read the position direction of the search object conceptually. In addition, a direct distance scale is provided at the center of the display screen of the display device 4, a horizontal distance scale is provided at an upper part, and a vertical distance (depth) scale is provided at a lower part. The vertical distance can also be read. In the above embodiment, for the sake of simplicity, the fish shadow is set only in the fourth beam direction. However, in the case where the fish shadow is scattered in each beam direction, the display screen of the conventional apparatus is viewed. Although it is very difficult to grasp the directions only by using the apparatus, the apparatus according to the present embodiment can very easily grasp them.

Further, it is needless to say that the apparatus of the present invention can be widely applied not only to underwater exploration but also to an apparatus for measuring the direction and distance of an object by transmitting and receiving a pulse beam in four directions.

[0014]

As described above, the underwater exploration apparatus according to the present invention can read the position and direction of the object to be detected with a simple configuration similar to that of the conventional apparatus, and the horizontal distance and the vertical distance can also be varied. There is an effect that it can be instantly known by the scale.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of an underwater exploration device of the present invention.

FIG. 2 is an explanatory view showing a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transceiver 2 Transceiver 3 Control device 4 Display device

Claims (1)

(57) [Claims] 1. An ultrasonic pulse beam (hereinafter abbreviated as a beam) transmitted / received in four directions underwater with a predetermined depression angle mounted on a ship, and a reflected signal image for each beam is displayed on a display screen that distinguishes each. In the underwater survey device to be displayed, when the bow direction of the ship is a direction of 0 degree, the first beam is clockwise in a direction of about 45 degrees, the second beam is in a direction of about 135 degrees, and about 225 degrees. Means for transmitting and receiving the third beam in the direction of degrees and the fourth beam in the direction of about 315 degrees, distinguishing the display screen of the display device into four screens of upper right, lower right, lower left, lower left, and upper right screen An image of the reflected signal of the first beam, an image of the reflected signal of the second beam on the lower right screen, an image of the reflected signal of the third beam on the lower left screen, and an upper left screen. The image of the reflection signal of the fourth beam is shown in the upper right and the right. Display means for displaying the left side of the screen as a position of distance 0, and the upper left and lower left screens of the display means for displaying the right side of the screen as a position of distance 0. An underwater exploration apparatus, comprising: scale display means for providing a direct distance scale, a horizontal distance scale, and a vertical distance scale.