JP6714311B2 - Water rescue signal transmitter - Google Patents

Description

The present invention relates to a water rescue signal transmitting device mounted on a ship or an aircraft.

2. Description of the Related Art Conventionally, a water rescue signal transmitting device is known which is mounted on a ship or an aircraft and which transmits a rescue signal including position information (GPS information) when they encounter a water accident (see Patent Documents 1 to 5 below). reference).

When a ship or an aircraft encounters a water accident, it is necessary to detach the oscillator from the submerged hull or airframe and float it near the water surface.

As such a rescue signal transmission device, a device provided with an oscillator (oscillator) that emits a transmission antenna when it gets wet with water and transmits it, and a float that floats this oscillator near the water surface (see below). See Patent Document 6).

However, in the conventional rescue signal transmitting device, it is difficult to detach the oscillator from the hull or the airframe and levitate near the water surface.

For example, a rescue signal transmission device including an oscillator is fixed to a ship or an aircraft in normal times, and it is extremely difficult to remove the oscillator when a water accident occurs.
Further, the rescue signal transmitting device provided with the float for floating the oscillator (oscillator) occupies a large space, and it is not preferable to dispose the rescue signal transmitting device in a narrow ship/inboard.

It should be noted that the following Patent Documents 7 and 8 introduce a device that automatically separates a marine accident notification buoy or the like due to a change in a diaphragm that senses water pressure when a ship or the like is submerged in a marine accident. The release mechanism is complicated and cannot be reliably removed when submerged.

JP-A-10-105856 JP, 2004-158209, A JP-A-8-40365 JP-A-2000-103391 JP-A-58-25726 Japanese Utility Model Publication No. 56-147192 Japanese Utility Model Publication No. 3-69598 Japanese Utility Model Publication No. 7-2390

The present invention has been made based on the above circumstances.
An object of the present invention is to allow the oscillator to be reliably separated from the hull or the airframe and to levitate near the water surface, be compact, and be excellent in space efficiency when arranging in a narrow ship/inboard. To provide.

The rescue signal transmission device of the present invention is a device mounted on a ship or an aircraft,
A metal-air battery that is arranged in a state where the electrolytic solution is not filled in the battery container in normal times, and that generates power by filling the electrolytic solution in the battery container when a water accident occurs,
An inflator that is ignited by electric power from the metal-air battery, and an airbag that has an airbag that is expanded by gas generated from the inflator and that maintains airtightness after expansion,
An oscillator fixed to the air bag device and separated from the metal air battery together with the air bag device when the air bag is expanded to float near the water surface and transmit a rescue signal. To do.

In the water rescue signal transmission device of the present invention, the metal air battery, the airbag device and the oscillator are stored, water can flow into the inside when submerged, and the air bag device separated from the metal air battery and It is preferable to provide a container capable of discharging the oscillator to the outside.

In the water rescue signal transmitting device of the present invention, it is preferable that the metal air battery is a magnesium air battery.

In the water rescue signal transmitting device of the present invention, an electrolyte may be housed in the battery container of the metal-air battery.

In the water rescue signal transmission device of the present invention, the oscillator shifts the power supply, the oscillation circuit that generates the rescue signal, and the oscillation circuit that is in a standby state in a normal state to an operating state by the power from the metal-air battery. It is preferable to have a control part.

According to the water rescue signal transmitting device of the present invention, the oscillator can be reliably disengaged from the hull or the airframe and can be reliably floated near the water surface.
Since the water rescue signal transmitting device of the present invention has the airbag device as a means for floating the detached oscillator near the water surface, it is compact as compared with a device equipped with a float or the like, and is narrow inboard/inboard. It is remarkably excellent in space efficiency when arranging in.

It is explanatory drawing which shows schematic structure of one Embodiment of the water rescue signal transmission apparatus of this invention. It is explanatory drawing which shows the circuit structure of the oscillator with which the water rescue signal transmission apparatus shown in FIG. 1 was equipped. FIG. 4 is an explanatory diagram showing a process in the water rescue signal transmitting device shown in FIG. 1 from when the battery container of the magnesium-air battery is filled with the electrolytic solution to when the rescue signal is transmitted by the oscillator floating near the water surface. ..

An embodiment of the present invention will be described below.
The water rescue signal transmission device 100 of the present embodiment shown in FIG. 1 is mounted on a ship and is a device for transmitting a rescue signal including position information (GPS information) and the like when the ship encounters a water accident (marine accident). Is.

The water rescue signal transmitting device 100 includes a magnesium air battery 10, an airbag device 20, an oscillator 30, and a container 40 that houses them.

In the magnesium-air battery 10 that constitutes the water rescue signal transmitting device 100, the positive electrode 11 and the negative electrode 13 are arranged in the battery container 15.
The positive electrode 11 of the magnesium-air battery 10 is an air electrode, and the negative electrode 13 is a metal electrode using magnesium or a magnesium alloy as a negative electrode active material.

A large number of through holes (not shown) are formed in the wall portion of the battery container 15 of the magnesium-air battery 10 so that water can flow into the inside.

In normal times, the inside of the battery container 15 of the magnesium-air battery 10 is not filled with the electrolytic solution. Therefore, the magnesium air battery 10 does not generate power.

Then, the ship equipped with the salvage rescue signal transmitting device 100 encounters a marine accident, and the seawater is introduced from a large number of through holes formed in the wall portion of the battery container 15 to fill the inside of the battery container 15 with the seawater. As a result, the magnesium air battery 10 starts power generation.

The airbag device 20 that constitutes the water rescue signal transmitting device 100 includes an inflator 21 (gas generator) and an airbag 23 that is inflated by the gas generated from the inflator 21 and maintains airtightness after the inflator 21.

The inflator 21 of the airbag device 20 is electrically connected to the magnesium air battery 10 (the positive electrode 11 and the negative electrode 13), and when the magnesium air battery 10 starts power generation, the inflator 21 is powered by the electric power from the magnesium air battery 10. When ignited, the ignited inflator 21 generates gas, and the generated gas causes the airbag 23 to expand (deploy).

It should be noted that the magnesium air battery 10 and the inflator 21 are only electrically connected, and the airbag device 20 can be easily moved from the magnesium air battery 10 after the airbag 23 is expanded (automatically by expanding the airbag 23). Can be separated.

As the airbag device 20, it is possible to use a device having the same configuration as that of an automobile airbag device. However, since the purpose is not to absorb the shock of the occupant but to raise the oscillator 30 near the water surface, as will be described later, the air bag 23 has a gas exhaust port (vent hole). ) Is not formed.

The oscillator 30 constituting the water rescue signal transmitting device 100 is fixed to the airbag device 20, and is separated from the magnesium air battery 10 together with the airbag device 20 when the airbag 23 is expanded.
The oscillator 30 separated from the magnesium air battery 10 floats near the water surface by the buoyancy of the airbag 23.

Further, when the magnesium-air battery 10 starts to generate power, the oscillation circuit built in the oscillator 30 is activated, and the rescue signal can be transmitted from the oscillator 30.

As shown in FIG. 2, the oscillator 30 includes a power source 31 including a lithium button battery, an oscillation circuit 33 that generates a rescue signal, and an oscillation circuit 33 that is in a standby state in a normal state from the metal-air battery 10. It has a control unit 35 that shifts to an operating state by electric power.

The control unit 35 of the oscillator 30 includes a transistor 351 and a microcomputer chip 353 having an input port connected to the connector of the transistor 351 and the oscillation circuit 33 connected to the output port. The magnesium-air battery 10 is connected to the base of the transistor 351, and the power supply 31 is connected to the connector of the transistor 351 via the resistor 357.

During normal times when the magnesium-air battery 10 is not generating power, the port voltage of the microcomputer chip 353 is the voltage of the power supply 31 (lithium button battery).
When a ship equipped with the salvage rescue signal transmitter 100 encounters a marine accident, seawater is filled in the battery container 15, and the magnesium air battery 10 starts power generation, the port voltage becomes 0 (V). Then, the microcomputer chip 353 that detects this shifts the oscillation circuit 33 to the operating state according to the program. As a result, the oscillation circuit 33 generates a rescue signal, and the rescue signal is transmitted from the oscillator 30 that floats near the water surface.

The container 40 that constitutes the water rescue signal transmitting device 100 stores the magnesium air battery 10, the airbag device 20, and the oscillator 30.

This container 40 is composed of a container body 41 and a lid body 43, and allows water to flow into the wall portion of the container body 41 (wall portion around the stored magnesium air battery 10) when submerged. Through holes 45 are formed.

Even if the water rescue signal transmitting device 100 of the present embodiment is arranged on the deck or the like, the lid 43 of the container 40 can prevent rainwater and the like from entering the inside of the container 40.
The lid 43 is attached to the container body 41 so as to be openable and closable so that it can be easily opened when the airbag 23 of the airbag device 20 is expanded.

When a ship equipped with the salvage rescue signal transmitter 100 encounters a marine accident and is submerged in water, as shown in FIG. 3(1), the container 40 passes through a through hole 45 formed in the wall of the container 40. The seawater 60 flows into the inside of the battery container, and the inflowing seawater 60 flows into the battery container 15 from the through hole formed in the wall of the battery container 15 of the magnesium-air battery 10. As a result, the inside of the battery container 15 is filled with seawater 60 that is an electrolytic solution, and the magnesium air battery 10 starts power generation.

When the power generation of the magnesium air battery 10 is started, the oscillation circuit 33 of the oscillator 30 is activated, and as shown in FIG. 3(2), the inflator 21 ignited by the power from the magnesium air battery 10 The air bag 23 is expanded (developed) by the generated gas, and the air bag device 20 having the air bag 23 expanded to a size that cannot be accommodated inside the container 40 is separated from the magnesium air battery 10, and the air bag device 20 and the oscillator 30 are separated. Are discharged from the container 40 into the sea.

The oscillator 30 discharged into the sea together with the air bag device 20 floats near the sea surface due to the buoyancy of the air bag 23, and emits a rescue signal 80 near the sea surface 65 as shown in FIG. Here, the rescue signal 80 (distress signal) includes position information (GPS information) and the like.

According to the water rescue signal transmission device 100 of the present embodiment, the oscillation circuit of the oscillator 30 is generated by the electric power (signal) from the magnesium-air battery 10 that starts power generation by filling the inside of the battery container 15 with seawater (detection of submersion in water). It is possible to put the oscillator 33 into an operating state and operate the airbag device 20 to surely disengage the oscillator 30 from the hull and to surely levitate near the sea surface.

Further, the water rescue signal transmitting device 100 of the present embodiment, which has the airbag device 20 as a means for floating the oscillator 30 near the water surface, is compact and is excellent in space efficiency when it is arranged in a narrow ship. ..

Although one embodiment of the present invention has been described above, the present invention is not limited to these and various modifications can be made.

For example, an electrolyte such as salt may be housed inside the battery container 15 of the magnesium-air battery 10. As a result, even when fresh water flows into the battery container 15, an electrolytic solution is formed and power can be generated.

Further, instead of the magnesium air battery 10, a metal air battery using a metal other than magnesium (alloy) as a negative electrode active material may be used. Such metals include zinc, lithium, iron, sodium, beryllium, aluminum, cadmium, lead and alloys thereof.

Further, the water rescue signal transmission device of the present invention can be mounted on an aircraft.

100 Water Rescue Signal Transmitter 10 Magnesium Air Battery 11 Positive Electrode 13 Negative Electrode 15 Battery Container 20 Airbag Device 21 Inflator (Gas Generator)
23 Airbag 30 Oscillator 31 Oscillator Power Supply 33 Oscillation Circuit 35 Control Unit 351 Transistor 353 Microcomputer Chip 357 Resistor 40 Container 41 Container Main Body 43 Lid

Claims (5)

A rescue signal transmission device mounted on a ship or an aircraft,
A metal-air battery that is arranged in a state where the electrolytic solution is not filled in the battery container in normal times, and that generates power by filling the electrolytic solution in the battery container when a water accident occurs,
An inflator that is ignited by electric power from the metal-air battery, and an airbag that has an airbag that is expanded by gas generated from the inflator and that maintains airtightness after expansion,
An oscillator fixed to the air bag device and separated from the metal air battery together with the air bag device when the air bag is expanded to float near the water surface and transmit a rescue signal. Emergency rescue signal transmitter. The metal air battery, the air bag device, and the oscillator are stored, water can be made to flow inside when submerged, and the air bag device and the oscillator separated from the metal air battery can be discharged to the outside. The water rescue signal transmitting device according to claim 1, further comprising a container. The water rescue signal transmitting device according to claim 1 or 2, wherein the metal air battery is a magnesium air battery. The water rescue signal transmitting device according to claim 1, wherein an electrolyte is contained in the battery container of the metal-air battery. The oscillator is a power supply,
An oscillator circuit that generates a rescue signal,
5. The water rescue signal transmission according to any one of claims 1 to 4, further comprising: a control unit that shifts the oscillation circuit that is in a standby state in a normal state to an operating state by power from the metal-air battery. apparatus.

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