JP2001180587A - Underwater sailing body protective device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underwater sailing body protective device capable of conducting protection to plural underwater sailing bodies, and simulating its own ship at high precision. SOLUTION: This underwater sailing body protective device is composed of a self-traveling sailing body part 11 and a towed body part 13 towed by that, an echo sound receiver 20 to receive detecting sound generated by an underwater sailing body is mounted on the towed body part 13, and a signal processing part 21 to synthesize simulated reflection sound and simulated sailing noise, and an echo sound transmitter 22 to output synthesized signals are mounted on the sailing body part 11. By composing this as a self-traveling body, the underwater sailing body can be guided to be far from its vessel, while motion of the ship can be simulated, and by separating the transmitter 22 from the receiver 20, they are capable of acting simultaneously, thereby simulation can be conducted even to plural underwater sailing bodies.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater vehicle defense system, which can cope with a plurality of underwater vehicles and can simulate a ship with high precision.

[0002]

2. Description of the Related Art Underwater vehicles are deceived by transmitting a simulated sound simulating the ship to one of the underwater vehicles defense device, and the vehicle travels underwater to a distance from the ship. There are things that induce the body.

Conventionally, such an underwater vehicle defense device has
It is either a towed type that detects the presence of an underwater vehicle and towed behind the ship, or a stationary type that discards it from the ship into the sea.In this device, a simulated sound combined with a receiver that receives the detection sound is provided. An output transmitter is mounted.

[0004]

However, in the conventional underwater vehicle defense device, a detection sound is received for one underwater vehicle, and a simulated sound corresponding thereto is synthesized and output. Despite being able to deceive, it is not possible to receive other detection sounds while outputting simulated sound for multiple underwater vehicles, and to output simulated sound for other underwater vehicles. There is a problem that can not be.

[0005] Some underwater vehicles detect the size of the hull by detecting sounds and recognize that the device is an underwater vehicle protection device.
There is also a problem that the ship cannot be simulated with high accuracy.

The present invention has been made in view of the above-mentioned problems of the prior art, and can protect against a plurality of underwater vehicles, and can simulate the ship with high accuracy. It is intended to provide a running body defense device.

[0007]

According to a first aspect of the present invention, there is provided an underwater vehicle body protection device, comprising: a vehicle body capable of traveling in water; And a tow body portion that is towed and towed. The tow body portion is equipped with a receiver for receiving a search sound emitted by the underwater vehicle, while the tow body portion includes the wave receiver. A signal processing unit that generates a simulated reflected sound based on the signal received by the device and generates a simulated running noise to synthesize the simulated sound, and a transmitter that outputs the simulated sound synthesized by the signal processing unit. It is characterized by being mounted.

According to the underwater vehicle protection device, the underwater vehicle includes a self-propelled body and a tow body towed by the body, and the tow body receives a detection sound emitted from the underwater vehicle. A receiver is installed, and a signal processing unit that synthesizes simulated reflected sound and simulated running noise and a transmitter that outputs this are mounted on the sailing body, and by using a self-propelled type Guides the underwater vehicle in the distance from the ship and simulates the movement of the ship, and separates the transmitter and receiver to simulate multiple underwater vehicles. To be able to

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the underwater vehicle body protection device further includes the watercraft and the towing body, the receiver and the wave transmitter. In this case, it is possible to simultaneously operate as an interval in which no acoustic interference occurs with the device.

According to the underwater vehicle body protection device, the space between the body and the towing body is set to a space where acoustic interference does not occur between the receiver and the transmitter. The simulation of a plurality of underwater vehicles can be performed more reliably.

Further, the underwater vehicle protection device according to claim 3 of the present invention has the configuration according to claim 1 or 2,
The tow body portion is configured by a plurality of tow bodies, and the receiver is mounted on one or more of the tow bodies, and a transmitter is mounted on another tow body so that the entire length of the hull can be simulated. It is characterized by the following.

According to the underwater vehicle protection device, the tow body section is composed of a plurality of tow bodies, and a receiver is mounted on at least one of these tow bodies, while a wave transmitting device is mounted on another tow body. By outputting simulated sound from a plurality of transmitters, the entire length of the ship's hull can be simulated, and the ship can be simulated with high accuracy. When multiple receivers are installed, the distance of the underwater vehicle can be determined by receiving the detection sound of the underwater vehicle using the multiple receivers, and the sound corresponding to the distance of the underwater vehicle can be determined. Processing and cruise control.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 and FIG. 2 are a schematic configuration diagram and a functional explanatory diagram according to an embodiment of the underwater vehicle protection device of the present invention.

The underwater vehicle body protection device 10 includes a self-propelled vehicle body unit 11 that travels underwater, and a tow body unit 13 towed by the tow cable 12 from the vehicle body unit 11. ing. A power unit 14 is mounted at the rear of the hull unit 11 and is configured by, for example, an electric motor to rotationally drive a propulsion unit 15 outside the rear end of the hull unit 11.
The power source 1 of the onboard equipment mounted in the
6. Power is supplied from, for example, a battery, and a rudder 17 is provided in front of the propulsion unit 15 and driven by a steering device 18 that operates by supplying power from a power source 16 to travel. The posture, running direction, and depth of the body 11 can be changed. Then, the navigation control device 19 mounted in the hull unit 11 controls the cruising state of the hull unit 11 so that the hull unit 11 can be controlled to run freely underwater. The section 13 can also be towed by the traveling body section 11 by the towing cable 12.

A receiver 20 for receiving a detection sound emitted from the underwater vehicle is mounted on the tow body portion 13 of the underwater vehicle protection device 10.
2, and is sent to the hull body section 11.

A received signal from the receiver 20 is input into the navigation body unit 11, and a signal processing unit 21 for processing and synthesizing a simulated sound from the input signal is mounted on the navigation unit 11. A transmitter 22 for outputting the simulated sound is mounted, and the receiver 20, the signal processing unit 21, the transmitter 22, and the navigation unit 11 are integratedly controlled by the control device 23. I have.

Underwater vehicle protection device 1 constructed as described above
In the case of 0, when the existence of the underwater vehicle in the own ship is known, the tow body portion 13 towed by the tow body portion 11 and the towing cable 12 is discarded in the water, and the self-propelled vehicle moves away from the own ship. At the same time as the traffic control is being performed, as shown in FIG.
The receiver 20 mounted on the receiver 3 receives a detection sound from the underwater vehicle, and based on the received sound, performs signal processing in the signal processing unit 21 as described below to synthesize simulated sound.

In the signal processing section 21, waveform analysis is performed based on the input signal, and the analyzed waveform is recorded, while processing is performed based on the analyzed waveform, and the phase and frequency of the detected sound are determined. A phase and a frequency corresponding to the reflected sound reflected from the own ship are obtained in accordance with the above, and are combined with the recorded waveform to generate a simulated reflected sound.

In the signal processing section 21, in parallel with the generation of the simulated reflected sound, the simulated running noise corresponding to the voyage noise generated by the voyage of the own ship is generated.

The simulated reflected sound and the simulated running noise generated in this way are synthesized to produce a simulated sound which is an output signal.

The simulated sound is output from the transmitter 22.

Then, the underwater vehicle recognizes the reflected sound from the detection sound as the simulated sound output from the underwater vehicle protection device 10, and is attracted to the underwater vehicle protection device 10 to secure its own ship. Can be defended.

At this time, since the navigation unit 11 is of a self-propelled type, the underwater vehicle can be attracted by making it self-propelled far from the ship, as compared with the conventional case of dumping in water.
You can defend more safely.

Further, since the wave transmitter 22 is mounted on the navigation body 11 and the receiver 20 is mounted on the tow body 13 towed by the towing cable 12, the transmitter and receiver are separated. Even if the length of the cable 12 is simultaneously operated by the transducers 22 and 20, acoustic interference can be prevented from occurring, so that the receiver 20 constantly receives the detection sound from the underwater vehicle. Simulated sound corresponding to each underwater vehicle can be synthesized by the signal processing unit 21 and output from the transmitter 22 even in a plurality of underwater vehicles. The underwater vehicle can be attracted to the underwater vehicle protection device 10 to protect the ship.

Next, another embodiment of the underwater vehicle protection device according to the present invention will be described with reference to FIG. 3. The same parts as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted. .

In the underwater vehicle protection device 30, the tow body portion 31 towed by the tow body portion 11 via the tow cable 12 is composed of a plurality of tow bodies.
1a to 31c.

Then, the towing body 3 closest to the sailing body section 11
A receiver 20 is mounted on 1a as in the above embodiment, and transmitters 32 and 33 are mounted on two rear towing bodies 31b and 31c, respectively.

The signal processing section 21 can synthesize a simulated sound to be reflected on the basis of the difference in the direction of the detection sound from the underwater vehicle in the respective transmitters 32 and 33. .

The other configuration is the same as that of the underwater vehicle protection device 10 described above.

The underwater vehicle defense device 3 configured as described above
In the case of 0, even when the underwater vehicle has analyzed the direction of the reflected sound with respect to the detection sound in detail, and physically determined the actual length of the target, the towing body part 31 is divided into the plurality of towing bodies 31a to 31c. Since the transmitters 32 and 33 are mounted on the rear two towed bodies 31b and 31c, respectively, the reflected sound due to the difference in the direction of the detection sound from the underwater vehicle is synthesized as a simulated sound, and Can be output from the transmitters 32 and 33, and by simulating the physical length, the ship can be simulated with high accuracy and the underwater vehicle can be attracted.

The number of towing bodies constituting the towing body part is as follows:
Depending on the size of the ship to be simulated, the number of transmitters in addition to the number of receivers may be set to a number corresponding to the number.

[0033]

As described above, according to the underwater vehicle protection device of the first aspect of the present invention, the self-propelled vehicle body is towed by the self-propelled body. A signal processing unit that is composed of a towing body part, has a receiver that receives the detection sound emitted by the underwater vehicle in the towing body part, and combines a simulated reflected sound and simulated navigation noise in the navigation body part and And a transmitter to output the underwater, so that the self-propelled type can guide the underwater vehicle to the distant from the own ship, and can also simulate the movement of the own ship, Furthermore, by separating the transmitter and the receiver, it is possible to simulate a plurality of underwater vehicles, and to protect the ship from the underwater vehicles.

[0034] According to the underwater vehicle protection device of the second aspect of the present invention, the distance between the navigation unit and the tow body unit causes acoustic interference between the receiver and the transmitter. Since there is no interval, the ship can be simulated more reliably with respect to a plurality of underwater vehicles, and the ship can be more reliably protected from the underwater vehicles.

Furthermore, according to the underwater vehicle protection device of the third aspect of the present invention, the tow body portion is composed of a plurality of tow bodies, and a receiver is mounted on at least one of these tow bodies. ,
Since the transmitter is mounted on another towed vehicle, simulated sound can be output from multiple transmitters to simulate the full length of the ship's hull, and the underwater vehicle can detect the target from the direction of the reflected sound. Even when judging the actual length, it is possible to simulate the ship with high precision and to protect it from underwater vehicles.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram according to an embodiment of an underwater vehicle protection device of the present invention.

FIG. 2 is an explanatory diagram of functions according to an embodiment of the underwater vehicle protection device of the present invention.

FIG. 3 is a schematic configuration diagram according to another embodiment of the underwater vehicle protection device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Underwater vehicle body protection device 11 Wing body part 12 Towing cable 13 Tow body part 14 Power device 15 Propeller 16 Power source 17 Rudder 18 Steering device 19 Navigation control device 20 Receiver 21 Signal processing unit 22 Transmitter 23 Control device 30 Underwater vehicle protection device 31 Towing body part 31a, 31b, 31c Towing body 32, 33 Transmitter

Claims (3)

[Claims] An underwater vehicle that is mounted on the tow body and that includes a tow body that is separated from the navigator and is towed by the underwater vehicle. A receiver for receiving sound, and a signal processing for generating a simulated reflected sound and generating a simulated running noise based on a signal mounted on the navigation unit and received by the receiver, and synthesizing a simulated sound. An underwater vehicle protection device, comprising: a transmitter mounted on the vehicle and outputting a simulated sound synthesized by the signal processor. 2. The system according to claim 1, wherein the navigation unit and the towing unit are simultaneously operable at intervals in which no acoustic interference occurs between the receiver and the transmitter. An underwater vehicle defense device as described. 3. The tow body section is composed of a plurality of tow bodies, and the receiver is mounted on one or more of the tow bodies, and a transmitter is mounted on another tow body to reduce the total length of the hull. The underwater vehicle protection device according to claim 1, wherein the underwater vehicle protection device is configured to be simulated.