JP5207877B2 - Sensitive minesweeper - Google Patents

Description

  The present invention relates to a sensitive minesweeper that simulates a magnetic field and an electric field generated from a ship with high accuracy to destroy a highly intelligent mine.

  A conventional minesweeper simulates a ship's magnetic field by passing a current through a plurality of electrodes in the sea towed by a minesweeper, and the magnetic mine laid in the sea is destroyed by the magnetic field (for example, Patent Document 1).

JP 2004-306683 A (page 4-6, FIGS. 1 and 2)

  By the way, mine includes a highly intelligent mine that activates and explodes when a potential difference of an electric field is detected simultaneously with magnetism. The electric field is generated by the anticorrosion current of the ship. However, the conventional minesweeper described above only simulates the magnetism of the ship, and does not have a function of simultaneously simulating the magnetic field and the electric field.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a sensitive sweeper that simulates an electric field generated by a corrosion protection current of a ship.

The sensitive minesweeper according to the present invention includes a plurality of minesweepers that are towed in a line along the traveling direction of the minesweeper and that simulate magnetic fields and electric fields that are generated according to the characteristics of the ship. In a sensitive minesweeper that activates and destroys mines with magnetic and electric fields , a plurality of minesweepers are provided with coils that generate magnetism in three axial directions, and select the magnetic direction of the coils according to the characteristics of the ship, Simulate the magnetic field of the ship.

  In the present invention, since the magnetic field and electric field generated according to the characteristics of the ship are simulated by a plurality of minesweepers, the intelligent mines that operate when the potential difference of the electric field is detected simultaneously with the magnetism are destroyed. It is possible to secure the ship's route more safely.

  FIG. 1 is a block diagram showing a configuration of a sensitive sweeper according to an embodiment of the present invention, FIG. 2 is a conceptual diagram showing the sensitive sweeper according to the embodiment applied to a minesweeper, and FIG. 3 is a sweeper of the sensitive sweeper. FIG. 4 is a diagram showing the correlation between the level of the ship's magnetic field and the coil current required to generate the magnetic field, and FIG. 5 shows the level of the ship's electric field and its electric field. It is a figure which shows the correlation with the electrode electric current required to make it generate | occur | produce.

  As shown in FIG. 1, the sensitive minesweeper according to the embodiment includes a power supply device 12 that inputs an alternating current from a generator 11 mounted on a minesweeper 10 and converts the alternating current into a direct current, and for example, a ship to be simulated. An operation unit 13 for inputting a name and ship type (tanker, passenger ship, cargo ship, escort ship, etc.), a signal processing device 14, a control device 15, for example, five minesweepers 20, and these five minesweepers For example, a 40-core cable 30 for connecting the tool 20 to the control device 15 is provided.

  Each sweeper 20 has a streamlined appearance as shown in FIG. 3A, and includes a set of three coils 21, 22, 23 and one electrode 24, which will be described later, for example, 40 poles. Two sets of connectors 25 (see FIG. 1) are provided. The connector 25 is configured to electrically connect the cable 30 between the sweeper and the cable 30 between the sweeper 20 and the control device 15 and to fix the cables 30 so that the connection is not disconnected. . Further, when the minesweeper 20 is towed by the minesweeper 10, as shown in FIG. 2, the minesweeper 20 is arranged in a line along the traveling direction of the minesweeper 20 at equal intervals. The depth is kept almost constant by the floating buoy 40 located at the end.

  The signal processing device 14 described above has a memory (not shown) in which coil current and electrode current values set corresponding to the ship name and ship type of the ship to be simulated are stored as data. For example, as shown in FIG. 4, the coil current is a current value for simulating a magnetic field generated from each ship of ship names A, B, and C, and the electrode current is, for example, as shown in FIG. It is a current value for simulating the electric field generated by the anticorrosion current of each ship of names A, B, and C. Further, the coil current and the electrode current set corresponding to the ship type of the ship are current values obtained based on the characteristics of the ship, for example, the size of the ship, the material of the hull, the loading amount, and the like. The coil current is supplied to the three coils 21, 22, and 23 respectively mounted on the minesweeper 20, and the two coils 22 and 23 are supplied with the same coil current.

  The control device 15 has a connector 16 to which the cable 30 is connected on the output side, and the direct current of the power supply device 12 is supplied so that the coil current and the electrode current set by the signal processing device 14 are supplied to each of the sweeper tools 20. Control the current. The coil current is almost a hundred times greater than the electrode current.

  As shown in FIG. 3B, the three coils 21, 22, and 23 described above are formed in a cylindrical ring shape and a rectangular ring shape when viewed from the side. The Y-axis and Z-axis coils 22 and 23 are arranged so as to intersect with each other in the hollow 21. Each coil 21, 22, 23 is individually connected to the control device 15 via the core wire of the cable 30 for each of the sweeper 20. In addition, as shown in FIG. 3C, a coil current flows through the X-axis coil 21 so that magnetism is generated in the traveling direction (X-axis direction) of the minesweeper 10, and the Y-axis coil 22 has a minesweeping. A coil current flows so that magnetism is generated in a direction orthogonal to the traveling direction of the boat 10 (Y-axis direction), and magnetism is generated in the Z-axis coil 23 in a direction perpendicular to the seabed (Z-axis direction). The coil current flows as follows.

  Each electrode 24 is attached to the lower part of the rear end side of each minesweeper 20 so as to protrude downward (see FIG. 3A). For example, among the five electrodes 24, the electrode 24 of the first sweeping tool 20 in front of the minesweeper 10 side is set as the + pole, the electrode 24 of the second sweeping tool 20 is set as the-pole, and the third Each electrode 24 of the fourth sweeper 20 is used as a + pole, and the last electrode 24 of the fifth sweeper 20 is used as a minus pole. The aforementioned electrode current is supplied to each electrode 24 of the first and third and fourth minesweepers 20. In this case, an electrode current is discharged from the electrode 24 (+ electrode) of the first mining tool 20 toward the electrode 24 (−electrode) of the second mining tool 20, and the third and fourth mining tools 20. Electrode current is discharged from each electrode 24 (+ electrode) to the electrode 24 (−electrode) of the last sweeper 20. This discharge generates an electric field in the X-axis direction and the Z-axis direction. The electric field in the X-axis direction is generated by the electrode current between the positive electrode 24 and the negative electrode 24, and the electric field in the Z-axis direction is generated by the electrode current that does not reach the negative electrode, and is generated in the seabed direction. doing. The electric field level in the Z-axis direction is significantly lower than the electric field in the X-axis direction.

Next, the operation of the sensitive sweeper configured as described above will be described.
When the floating buoy 40 is dropped onto the sea from the stern of the minesweeper 10 and then the five minesweepers 20 are dropped in sequence, and then, for example, the ship name A of the ship to be simulated is input from the operation unit 13, the signal processing device 14 Then, the memory is accessed using the inputted ship name A as a keyword, the coil current and the electrode current associated with the ship name A are read, and the data is transferred to the control device 15. Further, when the ship type of the ship to be simulated is input, the signal processing device 14 displays a message for inputting the ship size, the material of the hull, the mounted amount, etc., which are the characteristics of the ship, on the operation unit 13. When the characteristic of the ship is input by this display, the coil current and the electrode current set in accordance with the characteristic are read from the memory, and the data is transferred to the control device 15.

  When the coil current and the electrode current are input, the control device 15 changes the direct current of the power supply device 12 so that the coil current flows through the X-axis coil 21, the Y-axis coil 22, and the Z-axis coil 23 of each minesweeper 20. In addition to the control, the DC current of the power supply device 12 is controlled so that the above-described electrode current flows through each electrode 24 of the first, third and fourth minesweeper 20 as viewed from the minesweeper 10 side, for example. At this time, a magnetic field is generated by the magnetism in the three-axis direction generated by the coil currents flowing in the coils 21, 22, and 23 mounted on each sweeper 20 (see FIG. 2A), and the electrodes of the first sweeper 20 24 and the electrode 24 of the second sweeper 20 generates an electric field, and each electrode 24 of the third and fourth sweeper 20 and the electrode 24 of the last sweeper 20 An electric field (X-axis and Z-axis directions) is generated by the electrode current discharged between (see FIG. 2B).

  The magnetism in the three-axis directions by the coils 21, 22, and 23 of each minesweeper 20 is substantially the same as the magnetic levels in the X-axis, Y-axis, and Z-axis directions generated from the ship to be simulated (see FIG. 6). Moreover, the electric field of the biaxial direction by the electrode 24 of each minesweeper 20 becomes substantially the same as the electric field level of the X-axis and Z-axis directions generated by the above-described anticorrosive current of the ship (see FIG. 7).

  As described above, according to the embodiment, since the electric field generated by the magnetic field generated from the ship and the anticorrosive current of the ship is simulated by the plurality of minesweeper 20, the electric field is simultaneously generated in the magnetic field in the triaxial direction. It is possible to destroy the intelligent mine that operates when the potential difference is detected, and the ship's route can be secured more safely.

In the embodiment, the direction of magnetism has been described as the three-axis direction. However, a circuit configuration in which the magnetism can be switched to the one-axis direction or the two-axis direction according to the ship to be simulated may be used.
Moreover, although the electrode current discharged from the positive electrode 24 to the negative electrode 24 is a direct current, an alternating current may be discharged from the positive electrode 24.

It is a block diagram which shows the structure of the sensitive sweeping apparatus which concerns on embodiment of this invention. It is a conceptual diagram which shows the sensitive sweeping apparatus of embodiment applied to a minesweeper. It is a perspective view which shows the minesweeper of a sensitive minesweeper, and the coil of minesweeper. It is a correlation diagram of the coil current required in order to generate the magnetic level of a ship, and the magnetism. It is a correlation diagram of the electric field level of a ship, and the electrode current required in order to generate the electric field. It is an example figure which compares and compares the magnetic field of the triaxial direction of the magnetic field by simulation, and the magnetic field of the triaxial direction which a highly intelligent mine detects. It is an example figure which compares and compares the electric field of the biaxial direction by simulation, and the electric field of the biaxial direction which a highly intelligent mine detects.

Explanation of symbols

10 minesweeper, 11 generator, 12 power supply device, 13 operation unit, 14 signal processing device,
15 connector, 20 minesweeper, 21 X-axis coil, 22 Y-axis coil, 23 Z-axis coil, 25 connector, 30 cable, 40 floating buoy.

Claims (2)

It is towed in a line along the direction of travel of the minesweeper, and has a plurality of minesweepers that simulate the magnetic and electric fields generated according to the characteristics of the ship,
In sensitive minesweeping device you destroyed by operating mines by magnetic and electric fields from the plurality of minesweeping device,
The plurality of minesweepers are provided with coils that generate magnetism in three axial directions,
A sensitive sweeper , wherein the magnetic direction of the coil is selected according to the characteristics of the ship and the magnetic field of the ship is simulated . Each of the plurality of minesweepers is provided with electrodes,
The electric field generated by the anticorrosive current of the ship is simulated by discharging the current to the electrodes of each of the other minesweepers using the electrode of at least one minesweeper as a positive pole among the plurality of minesweepers. The sensitive sweeper according to claim 1.

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