JP4264787B2 - Underwater vehicle protection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an underwater vehicle-protecting apparatus, which can determine the case where an underwater vehicle moves away and can be influenced by an explosion.
[0002]
[Prior art]
While deceiving by sending a simulated sound that simulates your ship to the detection sound transmitted by the underwater vehicle to one of the underwater vehicle protection devices, and guiding the underwater vehicle far away from your ship A device that destroys the function of an underwater vehicle by detonating when approaching within a certain radius has been studied.
[0003]
Conventionally, such an underwater vehicle protection device is a stationary type that detects the presence of an underwater vehicle and throws it into the sea from its own ship, and a receiver for receiving the detection sound is synthesized in this device. A close-up device is installed along with a transmitter that outputs simulated sound.
[0004]
[Problems to be solved by the invention]
However, in the conventional underwater vehicle protection device, if the underwater vehicle does not enter within a certain radius, the detonator will not operate, and if the underwater vehicle moves away, the underwater vehicle protection device will be wasted. There is a problem.
[0005]
Also, some underwater vehicles detect the size of the hull by detecting sound and recognize that it is an underwater vehicle protection device. There is also a problem that it is unstable and the underwater vehicle cannot be approached within a certain radius that can be destroyed by detonation.
[0006]
The present invention has been made in view of the above-described problems of the prior art, and it is possible to slightly underwater aeronautical body by detonating in the case of changing from an approaching state to a moving away state even if it is not within a radius that can be destroyed by detonation. It is an object of the present invention to provide an underwater vehicle protection device that can affect the underwater vehicle.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, an underwater vehicle protection apparatus according to claim 1 of the present invention includes a receiver that receives a detection sound emitted by an underwater vehicle , and a simulated sound that is emitted from the detection sound. An underwater vehicle protection device equipped with a transmitter that attracts the middle vehicle, and the transmitter is mounted on a vehicle capable of navigating underwater, and glaze and detonation are carried on the vehicle. And a signal processing unit for processing the detection sound, wherein the signal processing unit determines whether the interval is long or the sound pressure is extremely low due to the interval between the detection sounds and the sound pressure change. Configured to output an initiation signal to the initiation device, and the receiver is mounted on a towed body portion towed by a towing cable from the traveling body unit, and the towed body unit is connected to the transmitter and the transmitter. The towing cable that does not cause acoustic interference even when the receiver is operated simultaneously. Of towed as the length, but also characterized by being compatible configured for multiple underwater vehicle.
[0008]
According to the underwater vehicle protection device, the receiver includes a receiver that receives a detection sound emitted from the underwater vehicle, and a transmitter that emits a simulated sound to the detection sound and attracts the underwater vehicle. The underwater vehicle protection device, wherein the transmitter is mounted on a traveling body portion capable of traveling underwater, and the navigation body portion is provided with a glaze and a detonation device and a signal for processing a detection sound. The signal processing unit is configured to output a detonation signal to the detonator by determining whether the interval is long or the sound pressure is extremely small from the detection sound interval and the sound pressure change. Even if the receiver is mounted on a towed body portion towed by a towing cable from the traveling body portion and the towed body portion is operated simultaneously with the transmitter and the receiver, acoustic interference does not occur. Towed as the length of the towed cable that does not occur, Also corresponds capable configuration, it is possible to detonate catches if underwater vehicle is changed to a state away from a state approaching, thereby, so that it is possible to influence the underwater vehicle even slightly become.
In addition, the underwater vehicle protection device is installed in the underwater vehicle that can travel underwater, so that it can simulate the state of the ship with higher accuracy compared to the stationary type. The body can be guided within a certain radius affected by the explosion.
In addition, the receiver of the underwater vehicle protection device is installed in the towed body part towed by the traveling body part, and the underwater vehicle is guided far away from the ship by being self-propelled. At the same time, the movement of the ship can be simulated, and the transmitter and receiver can be separated to simulate a plurality of underwater vehicles.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
1 and 2 are a schematic configuration diagram and a function explanatory diagram according to one embodiment of the underwater vehicle protection apparatus of the present invention.
[0015]
The underwater vehicle protection device 10 includes a self-propelled traveling body unit 11 that travels underwater and a towed body unit 13 that is towed by the towing cable 12 to the traveling body unit 11. A power unit 14 is mounted on the rear portion of the traveling body unit 11. The power unit 14 is configured by, for example, an electric motor and rotates the propulsion unit 15 outside the rear end of the traveling body unit 11. Power is supplied from a power source 16 of the mounted equipment mounted in the traveling body unit 11, for example, a battery, and a rudder 17 is provided in front of the propulsion unit 15. It is driven by the steering device 18 that operates by supplying power, and the posture, traveling direction, and depth of the traveling body unit 11 can be changed. Then, the navigation control device 19 mounted in the traveling body unit 11 performs control control of the traveling state, and can control the traveling body unit 11 to be arbitrarily self-propelled in water. The part 13 can also be towed by the traveling body part 11 by the towing cable 12.
[0016]
A receiver 20 for receiving a detection sound emitted from the underwater vehicle is mounted on the towed vehicle unit 13 of the underwater vehicle protection device 10, and the received signal is transmitted through the tow cable 12. It is to be sent to the part 11.
[0017]
In addition, a reception signal from the receiver 20 is input into the traveling body unit 11, and a signal processing unit 21 for processing and synthesizing the simulated sound from the input signal is mounted and synthesized at the tip portion. A transmitter 22 that outputs simulated sound is mounted, and the receiver 20, the signal processing unit 21, the transmitter 22, and the traveling body unit 11 are integrated and controlled by the control device 23.
[0018]
Further, in this underwater vehicle protection device 10, a glaze 24 is mounted on the vehicle body 11 and an initiation device 25 is installed, and a proximity determination result or a signal by magnetic detection of the initiation device 25 or the like Based on the signal processing result from the processing unit 21, an initiation signal is output from the initiation device 25 to explode the glaze 24.
[0019]
In the underwater vehicle protection device 10 configured as described above, when the presence of the underwater vehicle is known by the own ship, the towed vehicle unit 13 towed by the traveling vehicle unit 11 and the towing cable 12 is speculated in the water. At the same time, as shown in FIG. 2, the detector 20 mounted on the towed vehicle unit 13 receives the detection sound from the underwater vehicle, while being controlled and controlled to self-run at a position away from the ship. Based on the received sound, the signal processing unit 21 performs signal processing as follows to synthesize simulated sound.
[0020]
In the signal processing unit 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 to cope with the phase, frequency, etc. of the detection sound. Then, the phase and frequency corresponding to the reflected sound reflected from the ship are obtained and synthesized with the recorded waveform to generate a simulated reflected sound.
[0021]
Further, in the signal processing unit 21, in parallel with the generation of the simulated reflected sound, a simulated traveling noise corresponding to the traveling noise generated by the traveling of the ship is generated.
[0022]
The simulated reflected sound and the simulated cruising noise generated in this way are combined to create simulated sound that becomes an output signal.
[0023]
This simulated sound is output from the transmitter 22.
[0024]
Then, the underwater vehicle recognizes the reflected sound with respect to 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 safely defend its ship. Can do.
[0025]
On the other hand, in the underwater vehicle protection device 10, when the detonator 25 or the signal processing unit 21 detects that the underwater vehicle has entered a certain distance (hazard radius), an initiation signal is output from the detonator 25. And destroy the underwater vehicle by exploding the glaze 24.
[0026]
However, if it is found that the underwater vehicle protection device is that the underwater vehicle is generating simulated sound with its own detection sound or the like, it will move away from the underwater vehicle protection device 10 and will be agitated and fixed distance. Can no longer be attracted to.
[0027]
Therefore, in this underwater vehicle protection device 10, it is detected that the underwater vehicle changes from the approaching state to the away state, and the glaze 24 is exploded, so that the function of the underwater vehicle is slightly affected. To give.
[0028]
The determination of the state where the underwater vehicle is moving away is performed by the signal processing unit 21 by the following two methods.
[0029]
The detection sound of the underwater vehicle uses the fact that it needs to be changed in stages depending on the distance from the tracking target.
[0030]
(1) When the detection interval of the detection sound is used If the detection sound is not transmitted at an interval longer than the time for which the sound wave reciprocates the reciprocating distance to the tracking target (distance to the tracking target × 2 ÷ sound speed), The reflected sound cannot be managed, and on the other hand, if the detection sound is not transmitted in the shortest possible time, the correction of the tracking direction will be delayed. It is shortened.
[0031]
Therefore, when the interval between detection sounds becomes short or does not change, there is a possibility of approaching the underwater vehicle protection apparatus 10 that is the tracking target, whereas when the interval between detection sounds becomes long. When the underwater vehicle is moving away from the possibility of approach and the interval between detection sounds is long, the signal processing unit determines from the waveform analysis result of the detection sound received by the receiver 20. An initiation signal is output from 21 to the glaze 24 via the initiation device 25.
[0032]
(2) When the sound pressure change of the detection sound is used The minimum received sound that can be received by the underwater vehicle when the detection sound transmitted from the underwater vehicle reflects back from the tracking target and returns to the underwater vehicle. The target cannot be detected unless the sound pressure of the reflected wave is greater than the pressure.
[0033]
On the other hand, if the sound pressure of the reflected sound from the tracking target is too high, the signal processing load increases and the analysis accuracy also decreases.
[0034]
For this reason, in the underwater vehicle, when the distance to the tracking target is far, the minimum received sound pressure is secured, so the sound pressure of the detection sound is increased, and when the distance to the tracking target is close, in order to ensure analysis accuracy, Reduce the sound pressure of the detection sound.
[0035]
Further, since the detection sound from the underwater vehicle is transmitted from the front with directivity, the sound pressure of the search sound becomes extremely small when the underwater vehicle changes or passes.
[0036]
Therefore, if the sound pressure of the detection sound from the underwater vehicle does not change or decreases, the underwater vehicle may approach, whereas the sound pressure of the detection sound is extremely low In this case, there is no possibility of approach, and the underwater vehicle has changed its course or has gone away, and the detection received by the receiver 20 is when the sound pressure of this detection sound becomes extremely small. Judging from the sound waveform analysis result, an initiation signal is output from the signal processing unit 21 to the glaze 24 via the initiation device 25.
[0037]
In this way, even when the underwater vehicle is moving away from the underwater vehicle protection device 10, the function of the underwater vehicle is detected by detecting the time when it is closest and outputting an initiation signal to explode the glaze 24. Can be expected to have some impact.
[0038]
In addition, since this underwater vehicle protection device 10 is mounted on the vehicle body 11 and is self-propelled, it is farther from the own ship than in the case of a stationary type that is speculatively suspended in the water. While being able to self-propell and attract the underwater vehicle, it is possible to simulate the ship's movement with high accuracy and to more reliably attract the underwater vehicle within a certain distance. Can be destroyed and destroyed safely.
[0039]
In addition, since the transmitter 22 is mounted on the traveling body unit 11 and the receiver 20 is mounted on the towed body unit 13 towed by the towing cable 12 to separate the transmitter and receiver, It is possible to prevent acoustic interference from occurring even when the lengths are simultaneously operated by the transducers 22 and 20, so that the detector 20 can always receive detection sound from the underwater vehicle. In addition to the case where there is only one underwater vehicle, the simulated sound corresponding to each of the underwater vehicles can be synthesized by the signal processing unit 21 and output from the transmitter 22. The body can be drawn to the underwater vehicle protection device 10 to defend the ship.
[0040]
In addition, in the said embodiment, although the underwater vehicle body defense apparatus was mounted in the self-propelled vehicle body part, the conventional floating stationary type may be sufficient.
[0041]
In addition, the receiver is mounted on the towed body part towed by the traveling body part. However, the receiver is not limited to this, and it is mounted on the self-propelled traveling body part or integrated with the conventional floating stationary type. It is also good.
[0042]
【The invention's effect】
As described above in detail with reference to the embodiment, according to the underwater vehicle protection apparatus according to claim 1 of the present invention , the receiver for receiving the detection sound generated by the underwater vehicle, and the detection sound An underwater vehicle protection device having a transmitter that emits simulated sound and attracts the underwater vehicle, and the transmitter is mounted on a vehicle body that can travel underwater. The navigation unit is provided with a glaze and a detonator and a signal processing unit for processing the detection sound. In this signal processing unit, the interval between the detection sounds and the change in sound pressure is increased or the sound pressure is increased. Is determined so that an initiation signal can be output to the initiation device, and the receiver is mounted on a towing body portion towed by a towing cable from the traveling body portion. Even if the transmitter and receiver are operated simultaneously, The towed as the length of the towing cable does not occur, since the compatible configured also for a plurality of underwater vehicles, thereby detonating catches if underwater vehicle is changed to a state away from a state approaching This can affect the function of the underwater vehicle to some extent.
[0043]
In addition, according to this underwater vehicle protection device, the underwater vehicle protection device is installed in the underwater vehicle body that can travel underwater. It can be simulated with high accuracy, and the underwater vehicle can be guided and destroyed more reliably within a certain radius affected by the explosion.
[0044]
Furthermore, according to this underwater vehicle protection device, since the receiver of the underwater vehicle protection device is mounted on the towed body part towed by the traveling body part, In addition to guiding the underwater vehicle in the distance from the ship, it is possible to simulate the movement of the ship with high accuracy, and to separate multiple transmitters and receivers by separating the transmitter and receiver. Simulated sound can be output and be drawn.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram according to an embodiment of an underwater vehicle protection apparatus of the present invention.
FIG. 2 is a functional explanatory diagram according to one embodiment of the underwater vehicle protection apparatus of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Underwater vehicle protection apparatus 11 Navigation body part 12 Towing cable 13 Towing body part 14 Power unit 15 Propulsion device 16 Power source 17 Rudder 18 Steering device 19 Steering control device 20 Receiver 21 Signal processing unit 22 Transmitter 23 control device 24 glaze 25 detonator

Claims (1)

An underwater vehicle protection device comprising a receiver that receives a detection sound emitted by an underwater vehicle, and a transmitter that emits simulated sound to the detection sound and attracts the underwater vehicle,
The transmitter is mounted on a traveling body unit capable of navigating underwater, and the traveling body unit includes a glaze and a detonator and a signal processing unit that processes the detection sound. Determining whether the interval is long or the sound pressure is extremely small from the detection sound interval and the sound pressure change, and configured to output an initiation signal to the initiation device, and Mounted on a towed body portion towed by a towing cable from the body portion, and the towed body portion has a length of the towed cable that does not cause acoustic interference even if the transmitter and the receiver are operated simultaneously. An underwater vehicle defense device characterized by being towed and adapted to support a plurality of underwater vehicles .

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