JPH01155199A - Sonobuoy mine - Google Patents

Abstract

PURPOSE: To realize a radio wave control of a mine by providing an acoustic sensor, a radio sonobuoy section for transmitting/receiving signals to/from aircraft and a mine section which supplies self-diagnosis data to the radio sonobuoy section and is controlled in detonation by the radio sonobuoy section. CONSTITUTION: An aircraft supplies a control signal to a radio wave receiving circuit 13 through an antenna 11. The content of the control signal is sent to a control circuit 27 of a mine section 2 on each demand for the sensor data, the self-diagnosis data of each sensor, and detonation. Data obtained by acoustic, hydraulic-pressure, and magnetic sensors 15, 21 and 22 are input to processing circuits 23, 24, and 25, respectively, stored in a memory circuit 26, and sent from a radio-wave-transmitting circuit 14 to the aircraft. On a demand for the self-diagnosis data, a self-diagnosis circuit 28 compares a diagnostic data with a standard data and supplies the diagnostic data as the self-diagnosis data. Moreover, the detonation demand is supplied to a controlling circuit 27, and a detonator 29 initiates explosion. Thus a radio-wave control of a mine becomes possible and target-locating information can be increased.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to sonobuoy mines, and more particularly to sonobuoy mines that are dropped onto the sea from a carrier platform such as an aircraft and that capture acoustic information emitted by underwater targets such as submarines. This relates to a sonobuoy mine that is designed to compensate for the shortcomings of both by combining the mine with a mooring type mine that is held at a set depth, or a submerged type mine that is deposited on the seabed.

[Conventional technology]

After being dropped from an aircraft into the sea, a hydrophone acting as an acoustic sensor is suspended into the sea to capture the target sound contained in the underwater sound, and this is transmitted via radio waves to a control center onboard the aircraft to detect the target. Sonobuoys that do this are well known. There are two types of sonobuoy operations: one that automatically starts and completes a predetermined operation after dropping, and one that is controlled by commands sent from the pipe center 1, and each can be used depending on the operational purpose. ing.

On the other hand, tethered and sunk mines differ in the setting depth and conditions under the sea, but in any case, they can be used either by acoustic, hydraulic, or magnetic sensors, or by a combination of them. Obtain data on changes in water pressure and magnetism,
It is well known that the mainstream is a type that detonates when this change adjusts to a predetermined setting condition, and is often used in morning emergencies.

[Problem that the invention seeks to solve]

The conventional sonobuoys and mines described above each have the following distance vμ.

In other words, because the sonobuoy operates in a floating manner, it is not possible to collect the necessary data at a fixed point.

This results in a decrease in accuracy when the control center attempts to determine the location of the target from the collected data.

In addition, due to the physical size constraints of the dropping device, the means to obtain target data is limited to acoustic sensors, and it is extremely difficult to use other sensors such as water pressure and magnetic sensors. This is the cause of suppressing the increase in function.

On the other hand, the physical size constraints of sea mines are significantly relaxed compared to sonobuoys, and the combined use of various sensors such as acoustics, water pressure, and magnetism is possible. The problem is that the only way to control the mines is through formal control, and this condition greatly limits the ability to monitor the functional status of mines and control the optimal U-J1 operation.

The object of the present invention is to eliminate the above-mentioned drawbacks, and provide a sonobuoy mine that combines a sonobuoy and a mine, anchors the sonobuoy to a fixed point, and controls the mine by radio waves using a radio wave channel for controlling the sonobuoy. It's about doing.

[Means for solving problems]

The sonobuoy mine of the present invention is connected to one end of a connecting cable connected to an acoustic sensor having a predetermined number of 71 hydrophones, floats on the sea, and receives control signals by radio waves between it and an aircraft-mounted control center. a sonobuoy unit that transmits a response signal to the control signal; and a sonobuoy unit that is connected to the other end of the connection cable to fix the sonobuoy unit and receives data from at least one of a water pressure sensor and a magnetic sensor in addition to the acoustic sensor. In addition, self-diagnosis data regarding the acoustic, water pressure, and magnetic sensors are supplied to the sonobuoy as data necessary for generating the response signal under the control of the control signal received from the sonobuoy section, and the detonation thereof is controlled by the control. It is comprised of a moored or sunken mine section that can be used to receive heavy loads.

〔Example〕

Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

The configuration of the embodiment shown in Fig. 1 is such that it receives control signals by radio waves from an aircraft-mounted control center to control the operation of mines, and also receives various data from the mines as response signals under the control of these control signals. It is comprised of a sonobuoy section 1 that sends out radio waves, and a mine section 2 whose operation is controlled by control signals supplied from the sonobuoy 1 via a connecting cable 3.

The sonobuoy section 1 includes an antenna 11, a transmission/reception switching circuit 12, a radio wave reception circuit 13, a radio wave transmission circuit 14, and a sound fort sensor 1.
5, the acoustic sensor 15 is suspended in the sea while receiving power (not shown) with one or more hydrophones attached to the connecting cable 3,
It is also fixed to the mine section 2 in a locked state via a connecting cable.

The sonobuoy section 1 is normally housed inside the mine section 2 together with the connecting cable 3 and the acoustic sensor 15, and is operated in a state where it floats on the sea surface with the connecting cable 3 illuminated when dropping.

FIG. 2 is an explanatory diagram showing the operational state of the sonobuoy mine of the embodiment shown in FIG. When loaded onto a transportation platform such as an aircraft, is it a sunken cylindrical rock? A connecting cable 3 including a sonobuoy part 1 and an acoustic sensor 15 inside the lW part 2
is stored and dropped, and the connecting cable 4 is fed out until the mine part 2 touches the bottom of the seabed B, and the mine part 2 is lowered to the sea surface W using buoyancy.
The sonobuoy section 1 is anchored to the mine section 2 while floating. This detachment mechanism can be easily implemented by a means similar to the pressure release mechanism of a sonobuoy that utilizes the impact generated when the vessel is dropped and submerged. Figure 2 shows a case where the mine section 2 is of a sunken type, but in the case of a moored type, the mine itself is moored in the sea with an anchor or the like.

Returning again to FIG. 1, the description of the embodiment will be continued.

The mine section 2, which is connected to the other end of the connecting cable 3 and is sunk on the seabed or moored under the sea, is equipped with a plurality of types of sensors, in the case of this embodiment, in addition to the acoustic pressure sensor 15, the water pressure sensor 21
It is configured as a sensitive mine that utilizes the data acquired by the magnetic sensor 22, and an acoustic data processing circuit 23 and a hydraulic data processing circuit 24 for processing data from each of these sensors.
and a magnetic data processing circuit 25. Note that the data obtained by each of the above-mentioned sensors is also provided to the detonator [29].

Furthermore, there is a memory circuit 26 that stores the collected data obtained by each of these data processing circuits, and a control circuit 2 that commands system control such as writing and reading control of collected data, reading self-diagnosis data, and control related to detonation.
7. It is constructed with a self-diagnosis circuit 28, etc., and a detonator 29 of the mine section 2 is also shown in FIG.

Next, the operation of the embodiment shown in FIG. 1 will be explained.

A control signal using a channel selected from among several dozen sonobuoy channels using the VHF band from an aircraft equipped with a control center is supplied via an antenna 11 to a transmission/reception switching circuit 12, and the input is sent to a radio wave receiving circuit. 1
Supply to 3. The contents of this control signal can be roughly divided into three types: 1 is a request for desired sensor data, 2 is a request for self-diagnosis data of each sensor, and 3 is a detonator that detonates the detonator [29] as necessary. It is a request.

The control signal output from the radio wave receiving circuit 13 has any of the above-mentioned requirements, and the control signal output from the mine section 20 control circuit 27
sent to.

A sensor data request is processed as follows.

Acoustic sensor 15, water pressure sensor 21 and magnetic sensor 22
The data acquired by the acoustic data processing circuit 23,
Hydraulic data processing circuit 24 and magnetic data processing circuit 25
The data is input into the computer and digitized in a predetermined format. These sensor data receive write/read control signals under the control of the built-in program of the control circuit 27, and all or selected sensor data is written to the memory circuit 26, read out as sensor data, and connected to the connecting cable 3. The signal is supplied to the radio wave transmitting circuit 14 via the signal.

? The FF wave transmitting circuit 14id generates a VHF band response signal in a predetermined FM modulation format based on this sensor data, and sends this via the transmission/reception switching circuit 12 and antenna 11 to a control center mounting platform such as Chikuei.

In this way, the control center can selectively acquire sensor data from a plurality of sensors, and the amount of information needed for target detection can be significantly increased compared to the case of a single sonobuoy.

In the case of conventional sonobuoys, the acoustic sensor 15 is freely suspended in the boat, and therefore, together with the sonobuoy, it swings up and down under the influence of waves, and the low-frequency noise caused by this swing is discarded. However, in this embodiment, this problem can be almost completely eliminated by fixing the acoustic sensor 15.

Next, we will discuss the operation in the case of self-inspection data Yasugi.

In the case of a self-diagnosis data request, the diagnostic data from each sensor of the acoustic data processing circuit 23, hydraulic data processing circuit 24, and magnetic data processing circuit 25 is sent to the memory circuit 26 by the write/read control signal of the control circuit 27. The data is written in, read out, and supplied to the self-diagnosis circuit 28.

This diagnostic data is used to monitor the normality of the operation of the sound, water pressure, and magnetic sensors as well as each gator processing circuit. The self-diagnosis circuit 28 compares this with the 41 semi-data to confirm whether the S operation is normal or not, and then performs a self-diagnosis in a predetermined format. It is supplied to the radio wave transmission circuit 14. This causes the radio wave transmitting circuit 14 to
A VHF wave response signal with M modulation is transmitted and sent to the control center of the aviation station via the transmission/reception switching circuit 12 and antenna 11. In this way, the control center can constantly monitor the operational status of the mine section 2, including the sonobuoy section 1.

If it is desired that the mine section 2 self-destruct for some reason, a control signal instructing a detonation request is supplied to the control circuit 27, and a detonation signal that starts the detonator 29 (No. 8 is supplied to the detonator 29 to activate it) Detonate it.

〔Effect of the invention〕

As explained above, by using sonobuoys and anchored or sunk mines in conjunction with the present invention, it is possible to control mines using radio waves while simultaneously or selectively collecting various sensor data at a fixed point. This has the effect of significantly increasing target detection information, significantly increasing the degree of freedom in mine installation locations, and realizing a sonobuoy mine that significantly reduces the influence of low-frequency noise on acoustic sensors.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the sonobuoy mine of the present invention, and FIG. gg2 is an explanatory diagram showing the operational status of the sonobuoy mine of the embodiment of FIG. 1. 1...Nnopui Department, 2...Mine Department, 3
......Connection cable, 11...Antenna, 12...Transmission/reception switching circuit, 13...Radio wave reception circuit, 14...Radio wave transmission circuit , 15...
...Acoustic sensor, 21...Water pressure sensor, 2
2... Magnetic sensor, 23... Acoustic data processing circuit, 24... Water pressure data processing circuit, 2
5...Getaki data processing circuit, 26...
・Memory circuit, 27... Control circuit, 28...
...Self-diagnosis circuit, 29...Detonator. Agent Patent Attorney Susumu Uchihara $jWJ

Claims (1)

[Claims] It is connected to one end of a connecting cable to which an acoustic sensor having a predetermined number of hydrophones is connected, and is floating on the sea and receives control signals by radio waves and transmits response signals to the control signals between it and the control center on board the aircraft. a sonobuoy section connected to the other end of the connection cable to fix the sonobuoy section, and a sonobuoy section that is connected to the other end of the connection cable and that collects data from at least one of a water pressure sensor and a magnetic sensor in addition to the acoustic sensor; The self-diagnosis data concerning the sonobuoy is supplied to the sonobuoy as data necessary for generating the response signal under the control of the control signal received from the sonobuoy section, and the detonation of the sonobuoy is controlled by the control. A sonobuoy mine characterized by comprising a mine part.