KR101767811B1 - Rescue boat for lifesaving on sea - Google Patents

Abstract

An embodiment of the present invention relates to a lifeboat for life rescue, and a technical problem to be solved is to facilitate control of the speed and direction of the hull, to safely rescue the victim at the time of a distress based on the position information of the hull .
To this end, an embodiment of the present invention is a lifeboat for life rescue boats equipped with a thrust device, comprising: a lifeboat body part which is lifted by a rescue person and is carried on a hull; A grip portion provided on one side of the front end of the lifeboat body and on the other side opposite to the one side and controlling the moving speed and direction of the hull by the operation of the rescue staff; And a control box part installed inside the life raft body part and controlling the thrust device so as to correspond to an operation signal of the handle part, wherein the handle part is provided at one side of the front end of the life raft body part, A first rotatable body portion provided inside the first cover portion and rotated by the operation of the rescue staff; and a second rotatable body portion disposed on the first rotatable body portion in a rotational direction of the first rotatable body portion And a first sensor unit including a plurality of first hall sensors disposed in a first direction; A second cover body provided on the other end of the front end of the lifeboat body, the second cover body having a second magnetic body attached thereto, a second rotatable body provided inside the second cover body and rotated by operation of the rescue person, And a second grip portion including a second sensor portion having a plurality of second hall sensors sequentially disposed on the second rotating body portion in the rotating direction of the second rotating body portion.

Description

RESCUE BOAT FOR LIFESAVING ON SEA

One embodiment of the invention relates to a lifeboat for life rescue.

Generally, accidents occur frequently due to inadequate swimming or other unexpected situations during swimming or other activities in the sea, rivers, reservoirs, etc.

In this case, conventionally, a person swims directly to rescue the structure, or tied up the water on the rope by throwing and pulled to rescue, or rescue activities using a rescue boat.

In the past, as a result of replacing the transportation means made for leisure purposes, the lifesaving structure was required to be time-consuming and time-consuming. The use of marine equipment, which was not designed to meet the purpose of the maritime structure, was to be used for structural purposes, and the victims of the maritime victims would succeed.

Public utility model public office room 1999-0017550 'Unmanned lifeboat' Korean Patent Laid-Open No. 10-2010-0118250 "

An embodiment of the present invention provides a lifeboat for life rescue boats which facilitates the speed and direction of the ship and can safely rescue the ship at the time of a distress based on the position information of the ship.

In addition, an embodiment of the present invention can generate an SOS mos signal through a high-brightness light emitting diode that can be recognized even from a long distance, thereby generating a SOS mosaic signal for a marine vessel moving on the sea or a coastal island or a marine life structure Provide a lifeboat.

A lifeboat for life rescue according to an embodiment of the present invention is a lifeboat for life rescue with a thrust device, which is lifted by a rescue person and is carried on a hull; A grip portion provided on one side of the front end of the lifeboat body and on the other side opposite to the one side and controlling the moving speed and direction of the hull by the operation of the rescue staff; And a control box part installed inside the life raft body part and controlling the thrust device so as to correspond to an operation signal of the handle part, wherein the handle part is provided at one side of the front end of the life raft body part, A first rotatable body portion provided inside the first cover portion and rotated by the operation of the rescue staff; and a second rotatable body portion disposed on the first rotatable body portion in a rotational direction of the first rotatable body portion And a first sensor unit including a plurality of first hall sensors disposed in a first direction; A second cover body provided on the other end of the front end of the lifeboat body, the second cover body having a second magnetic body attached thereto, a second rotatable body provided inside the second cover body and rotated by operation of the rescue person, And a second grip portion including a second sensor portion having a plurality of second hall sensors sequentially disposed on the second rotating body portion in the rotating direction of the second rotating body portion.

When the plurality of first hall sensors are rotated to a position corresponding to the first magnetic body, a predetermined speed control signal may be generated so as to correspond to each position and transmitted to the control box.

When the plurality of second hall sensors are rotated to a position corresponding to the second magnetic body, a predetermined direction control signal corresponding to each position may be generated and transmitted to the control box.

Wherein the thrust device is provided at a rear end of the hull and includes a GPS unit for generating positional information of the hull at one region of the front end of the hull and a signal output unit for outputting an emergency call signal in front of the hull, The control box unit may control driving of the thrust device according to the speed control signal or the direction control signal and may control the position information of the hull and the emergency call signal to be outputted to the outside.

The lifeboat for life rescue boats according to an embodiment of the present invention facilitates the control of the speed and direction of the ship and can safely structure the shipwreck at the time of a distress based on the position information of the ship.

In addition, since the embodiment of the present invention generates the SOS mos signal through the high-brightness light emitting diode which can be recognized even from the far distance, it is possible to quickly grasp the distress state on the moving ship, coastal islands or land.

FIGS. 1A to 1C are views showing lifeboats for life-resisting structures according to an embodiment of the present invention.
2 is a block diagram schematically illustrating a rescue boat for rescue of life according to an embodiment of the present invention.
3 is a view showing a handle of a lifeboat for life rescue according to an embodiment of the present invention.
4 is a view showing the operation of a handle of a lifeboat for life rescue according to an embodiment of the present invention.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, without departing from the spirit or scope of the present invention. Furthermore, the term "part" or the like described in the specification means a unit for processing at least one function or operation, which may be implemented by hardware or software, or a combination of hardware and software.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

FIG. 2 is a block diagram schematically showing a lifeboat for life-resisting structure according to an embodiment of the present invention. FIG. 3 is a cross- 4 is a view illustrating the operation of a handle of a lifeboat for life-resisting life according to an embodiment of the present invention.

1A to 1C, a lifesaving boat 10 according to an embodiment of the present invention is a lifeboat having a thrust device 11 at a rear end of a hull, and includes a lifesaving boat body 110, A GPS unit 140, a signal output unit 150, and a control box unit 130, as shown in FIG.

The lifeboat body 110 is a skeleton of a hull of the lifeboat 10, and is designed to be lifted up by a rescue person to ride on the hull. At this time, the life raft body 110 may be formed of a polycarbonate material for improving buoyancy and impact resistance. However, the present invention is not limited to the material of the life raft body 110, reinforced plastics, and the like. For example, the synthetic resin may be foamed synthetic resin to further lighten the weight of the entire boat.

In addition, the rescue personnel are aboard the hull to construct an accidenter. At this time, the rescue personnel can operate while holding the arm handle 120 of the arm. In addition, a safety bar (not shown) may be fixedly installed on both sides of the life raft body 110 so as to prevent a rescue person or an accidentor from being sideways. In addition, a rescue agent wears a belt strap (not shown) so that rescue personnel do not get caught in the water during lifesaving operations, and the belt strap and the safety bar are connected by a rope (not shown).

On the lower surface of the life raft body 110, a land moving handle 12 including wheels is installed.

The handle 120 is installed on both sides of the front end of the lifesaving boat body 110, and the operating speed and direction of the hull are controlled by manipulating the rescue personnel on both sides. More specifically, the handgrip 120 is provided on one side of the front end of the lifeboat body 110 and on the other side opposite to the side of the front end of the lifeboat body 110, and is configured to control the moving speed and direction of the hull, 1 includes a handle 121 and a second handle 122.

The first handle 121 is provided on one side (i.e., left side or right side) of the front end of the life boat main body 110.

The first handle portion 121 includes a first cover portion 1210 to which the first magnetic body 1211 is attached and a second cover portion 1210 which is provided inside the first cover portion 1210 and is rotated by the operation of the structural member. And a plurality of Hall effect sensors 1213 sequentially arranged in the rotation direction of the first rotating body part 1212 on the first rotating body part 1212 1 sensor unit.

When the plurality of first hall sensors 1213 rotate to a position corresponding to the first magnetic body 1211, a predetermined speed control signal corresponding to each position is generated and transmitted to the control box unit 130 . The speed control signal is transmitted through a signal transmission unit 1214 formed on one side of the first cover unit 1210.

That is, the first handle 121 can generate a stepwise speed control signal such as stop, first, second, third, etc. by the rotation of the first rotating body part 1212 by the structural member. For example, when the first rotating body portion 1212 is rotated by the structural member, the first handle portion 121 is rotated by the first-stage speed control signal + SIG1 and generates a two-stage speed control signal + SIG2 when the first magnetic body 1211 is positioned at the second Hall sensor, and when the first magnetic body 1211 is positioned at the third Hall sensor, And generates the speed control signal + SIG3. If the first magnetic body 1211 of the first knob 121 is not positioned at the position corresponding to the first hall sensor 1213, the first knob 121 may generate a stop signal.

As described above, the first handle portion 121 is disposed in the first cover portion 1210 to arrange a plurality of first hall sensors 1213 in a stepwise manner with respect to the first cover portion 1210 on which the magnet is mounted So that the output of the first hall sensor 1213 can be outputted. In addition, since the first handle portion 121 is disposed inside the first cover portion 1210 with an electrical device such as the first hall sensor 1213, it is possible to solve an electrical error caused by penetration of seawater.

The second handle 122 is provided on the other side (i.e., the right side or the left side) of the front end portion of the life boat main body 110.

The second handle 122 includes a second cover portion (not shown) to which a second magnetic body (not shown) is attached, a second rotation body portion (Not shown) and a second sensor unit (not shown) having a plurality of second Hall sensors (not shown) sequentially arranged in the rotating direction of the second rotating body on the second rotating body.

When the plurality of second hall sensors are rotated to a position corresponding to the second magnetic body, a predetermined direction control signal corresponding to each position may be generated and transmitted to the control box. The direction control signal is transmitted through a signal transmission unit formed on one side of the second cover unit.

That is, the second handle 122 can generate a direction control signal by the rotation of the second rotating body by the rescuer. For example, when the second handle 122 rotates in the forward direction by the rescue personnel, the second handle 122 generates a control signal corresponding to the left direction, and when the second handle 122 rotates in the opposite direction, Thereby generating a control signal.

As described above, the second handle 122 is disposed inside the second cover unit to operate the second cover unit mounted on the magnet in the forward or reverse direction so that the output of the second hall sensor Can be made to come out. In addition, since the second handle 122 is disposed inside the second cover, an electrical error such as a penetration of seawater can be solved.

Meanwhile, the second hall sensor 122 formed on the second handle 122 is provided to sense only the rotation direction of the second handle 122, and is preferably smaller than the number of the first hall sensors.

The GPS unit 140 is formed in one area of the front end of the ship, receives satellite signals from a plurality of satellites, transmits an RF signal of a predetermined frequency band, Extract location information.

The signal output unit 150 may be configured as a high-brightness light emitting diode (LED) to output an emergency call signal in front of the hull. However, the present invention is not limited to the type of the signal output unit 150, but may include a xenon discharge tube using xenon gas. The signal output unit 150 is operated by a driving driver connected to the control box unit 130. The signal output unit 150 receives a rated voltage for driving the high luminance light emitting diode or the xenon discharge tube from the driving driver, It is possible to output it.

For example, when a high-brightness LED is used in the signal output unit 150, the driver drives the output of the SOS morse signal of the high-brightness LED set in advance in response to the control command signal of the control box unit 130 .

When the xenon discharge tube is used in the signal output unit 150, the driving driver induces generation of an emergency call signal (i.e., a flashing signal) of the xenon discharge tube in response to the control command signal of the control box unit 130. [ (+) And (-) electrodes are provided on a discharge tube into which xenon gas is injected into a glass or quartz tube, and when a high voltage is applied to the third electrode after the capacitor is charged with a high voltage current, the xenon gas is ionized, Discharge is generated, and thus a strong flash can be obtained. Further, when the discharge is finished, the ionized xenon gas returns to the original state and prepares for the next discharge. Therefore, the driving driver uses a DC-DC converter to increase the voltage to a DC power source of about 200 V, and discharges the xenon discharge tube every predetermined period (for example, four seconds).

In the present invention, a communication unit (not shown) for communication with an external control center may be provided. The communication frequency band applied to the communication unit may be set in a range of 447.2625 to 447.5625 MHz, preferably 447.5000 MHz, which is used as the frequency of the radio device, and the radio wave type is F (G) 1D, F (G) 2D, antenna power is 10mW or less, occupied bandwidth is 8.5 KHz below the frequency tolerance is to have a regulation of 7x10 ^-6 or less. Here, the communication unit performs modulation on a transmission frequency, and a frequency shift keying (FSK) frequency modulation scheme may be applied. However, the present invention does not limit the frequency modulation scheme.

The control box unit 130 is installed inside the lifeboat body 110 and controls the operation of the thrust device so as to correspond to an operation signal of the handle 120.

That is, the control box unit 130 outputs a control signal for controlling the driving of the thrust device according to the speed control signal or the direction control signal generated by the first handle 121 or the second handle 122, To the DC motor driver constituting the thrust device, controls the DC motor through the DC motor driver, controls the communication unit to transmit the position information of the hull to the external control center or the surrounding vessel, It is possible to control the signal output unit 150 to output the signal.

The control box unit 130 includes a printed circuit board on which a plurality of electronic elements for implementing the above-described operations are mounted.

At this time, the case may be made of a polypropylene resin composition having excellent mechanical properties.

More specifically, the polypropylene resin composition is a low-gloss polypropylene resin composition comprising an ethylene-propylene block copolymer, wherein the ethylene-propylene block copolymer is composed of a homopolypropylene polymer and an ethylene-propylene copolymer, The ethylene-propylene block copolymer has a melt index of 5 to 30 g / 10 min at 230 DEG C and 2.16 kg of ASTM D1238, and the propylene homopolymer has a propylene homopolymer The viscosity ratio (? XS /? HomoPP) has a characteristic of 3 to 8.

The ethylene-propylene block copolymer resin may be composed of a homopolypropylene polymer portion and an ethylene-propylene copolymer portion as a rubber component.

The weight ratio of the ethylene-propylene copolymer to the ethylene content in the ethylene-propylene block copolymer is 0.5 to 2.0, preferably 1.0 to 2.0, and more preferably 1.0 to 1.5. When the weight ratio is less than 0.5, it is difficult to exhibit the low-gloss characteristics of the polypropylene resin. When the weight ratio is more than 2.0, the polypropylene resin composition which can lower the glossiness but the flexural rigidity of the composition is lowered and satisfies flexural rigidity and low gloss simultaneously There is a difficulty in obtaining.

The melt index of the ethylene-propylene block copolymer resin composition is 5 to 30 g / 10 min (ASTM D1238, 230 ° C / 2.16 kg, Melt Index, MI), preferably 15 to 30 g / 10 min, Is 20 to 30 g / 10 min.

The inherent viscosity ratio (? XS /? HomoPP) of the xylene-soluble portion (XS) and the propylene homopolymer of the ethylene-propylene block copolymer is 3 to 8, preferably 4 to 6. When the intrinsic viscosity ratio (? XS /? HomoPP) is less than 3, a flow mark may be generated in the appearance of the molded article at the time of injection of the polypropylene resin composition. If the intrinsic viscosity ratio is more than 8, none.

The ethylene content of the ethylene-propylene copolymer is 40 to 70 mol%. If the ethylene content is less than 40 mol%, the impact resistance of the resin composition is undesirably low. If the ethylene content is more than 70 mol%, the hardness, heat resistance, and the like may deteriorate and the surface of the injection molded article may become sticky.

The ethylene-propylene copolymer as the rubber component is 5 to 20% by weight, preferably 10 to 17% by weight based on the total weight of the ethylene-propylene block copolymer. If the content is less than 5% by weight, the gloss and impact strength may be lowered due to the low rubber component content, and if it exceeds 20% by weight, the flexural strength and tensile strength may be relatively lowered. The content of the ethylene-propylene copolymer may be measured using a solvent extract, and the solvent may be a xylene extract.

The polypropylene resin composition may further comprise 0.1 to 0.5 parts by weight, preferably 0.02 to 0.3 part by weight, of a heat stabilizer based on 100 parts by weight of the polypropylene resin composition in order to increase the heat stability of the injection molded article. If the content of the heat stabilizer is less than 0.1 parts by weight, it is difficult to secure long-term heat stability. If the content is more than 0.5 parts by weight, dissolution of the heat stabilizer may occur or cost efficiency may be deteriorated. Specific examples of the heat stabilizer include tetrakis (methylene (3,5-di-t-butyl-4-hydroxy) hydrosilylate), 1, 3,5-trimethyl-tris (3,5-di-t-butyl-4-hydroxybenzene) and tris (2,4-di-t-butylphenol) phosphite.

In the present invention, the ethylene-propylene block copolymer resin is a resin in which a homopropylene polymer portion and an ethylene-propylene copolymer portion are polymerized stepwise, and the polymerization can be carried out in the presence of a Ziegler-Natta catalyst.

The polymerization method may be a method and reaction conditions commonly known in the technical field of the present invention such as a slurry method, a bulk method, a vapor phase method and the like. Specifically, the ethylene-propylene block copolymer resin is produced by polymerizing homopolypropylene through two or more reactors in a first polymerization step, adding ethylene and propylene to the homopolypropylene produced in the second polymerization step, Propylene copolymer portion can be polymerized. The first polymerization step and the second polymerization step may be carried out in the same polymerization reactor or in different polymerization reactors. For example, the polymerization can be carried out in the presence of a catalyst system comprising a Ziegler-Natta catalyst and an external electron donor, and a gas phase polymerization reactor for synthesizing an ethylene-propylene copolymer and two or more bulk polymerization reactors for synthesizing homopolypropylene in the presence of hydrogen gas May be carried out in a polymerization facility.

The melt index of the homopolypropylene synthesized in two or more reactors synthesizing the homopolypropylene may be 20 to 100 g / 10 min (measured at 230 ° C, 2.16 Kg) in the final reactor. The melt index in each reactor for synthesizing two or more homopolypropylene can be operated so as to decrease in turn, and conversely, the melt index in each reactor can be operated in the same manner. Next, the synthesized homopolypropylene is moved to a gas-phase reactor in which ethylene-propylene copolymerization is carried out and ethylene-propylene block copolymer is continuously copolymerized with a homopolypropylene solid component as ethylene and propylene are charged simultaneously . The ratio of the ethylene content to the total gas in the gas phase reactor may be 0.30 to 0.90 (molar ratio), preferably 0.40 to 0.80, more preferably 0.50 to 0.70.

The molded product injected with the composition having the above-described composition exhibits low gloss and excellent mechanical properties, so that it can be appropriately responded to weather climate change when mounted on a lifeboat used in the sea.

Therefore, the life rescue lifeline 10 constructed as described above can prevent drowning because the thigh lifting device 11 can be mounted on a lifeboat having buoyancy at the time of disturbance at sea, It is possible to prevent a low degree of temperature build-up and it is possible to move to near islands or land through a thrust device (11), so that it is possible to prevent human casualties in case of distress at sea.

In addition, the present rescue lifeboat 10 is capable of quickly identifying a distress condition on a moving ship, on a coastal island, or on land because a high brightness LED, which can be recognized even from a distance, generates an SOS Morse signal. In addition, a GPS module is installed to easily identify the position of a maritime victim.

On the other hand, a coating layer coated with the anti-fouling coating composition is formed on the surface of the first Hall sensor 1213 so as to effectively prevent and remove the adhesion of contaminants. The composition for antifouling coating contains boric acid and sodium carbonate in a molar ratio of 1: 0.01 to 1: 2, and the total content of boric acid and sodium carbonate is 1 to 10% by weight based on the total aqueous solution. In addition, sodium carbonate or calcium carbonate may be used as the material for improving the coating property of the coating layer, but sodium carbonate is preferably used. The molar ratio of boric acid to sodium carbonate is preferably 1: 0.01 to 1: 2. If the molar ratio is out of the above range, the coating property of the substrate may be decreased or the moisture adsorption on the surface of the coating may increase.

The boric acid and sodium carbonate are preferably used in an amount of 1 to 10% by weight based on the total weight of the composition. When the amount is less than 1% by weight, the coating properties of the base material deteriorate. When the amount exceeds 10% by weight, easy to do.

On the other hand, as a method of coating the composition for anti-fouling coating on the first Hall sensor 1213, it is preferable to coat it by a spray method. The thickness of the final coating film on the first Hall sensor 1213 is preferably 500 to 2000 Å, more preferably 1000 to 2000 Å. When the thickness of the coating film is less than 500 ANGSTROM, there is a problem that it deteriorates in the case of a high-temperature heat treatment. When the thickness of the coating film is more than 2000 ANGSTROM, crystallization of the coating surface tends to occur.

Further, the composition for antifouling coating may be prepared by adding 0.1 mol of boric acid and 0.05 mol of sodium carbonate to 1000 mL of distilled water and then stirring.

On the other hand, the outer surface of the case of the control box part 130 may be coated with a temperature discoloration part whose color changes according to the temperature. The temperature discoloring unit is coated on the surface of the case of the control box unit 130 by separating two or more temperature-discoloring substances whose color changes when the temperature becomes a predetermined temperature or more into two or more intervals according to the temperature change, And a protective film layer is coated on the temperature discoloring portion to prevent the temperature discoloration portion from being damaged. Here, the temperature discoloring portion may be formed by coating a temperature discoloring material having a discoloration temperature of not lower than 40 캜 and not lower than 60 캜, respectively. The temperature discoloring unit is for sensing the temperature change of the paint by changing the color according to the temperature of the casing of the control box unit 130. The temperature discoloring unit may be formed by coating a surface of a case of the control box unit 130 with a temperature discoloring material whose color changes when the temperature is equal to or higher than a predetermined temperature. In addition, the temperature discoloring substance is generally composed of a microcapsule structure having a size of 1 to 10 탆, and the microcapsules can exhibit a colored and transparent color due to the bonding and separation phenomenon depending on the temperature of the electron donor and the electron acceptor. In addition, the temperature-changing material has a rapid color change and can have various discoloration temperatures such as 40 ° C, 60 ° C, 70 ° C, and 80 ° C, and such a discoloration temperature can be easily adjusted by various methods. Such a temperature-coloring material may be various kinds of temperature-coloring materials based on principles such as molecular rearrangement of an organic compound and spatial rearrangement of an atomic group. For this purpose, it is preferable that the temperature discoloring unit is formed to coat two or more temperature discoloring materials having different discoloration temperatures and be separated into two or more sections according to the temperature change. The temperature discoloring unit preferably uses a temperature discoloring material having a relatively low temperature discoloration temperature and a temperature discoloring material having a relatively high discoloration temperature and more preferably a discoloration temperature of not lower than 40 deg. The temperature discoloring portion can be formed using the discoloring substance. Accordingly, the change in the temperature of the case of the control box part 130 can be checked step by step, thereby detecting the temperature change of the paint, thereby preventing the case of the control box part 130 from being damaged by overheating . In addition, the protective film layer is coated on the temperature discoloring portion to prevent the temperature discoloration portion from being damaged due to the external impact, and it is easy to check whether the discoloration portion of the temperature discoloring portion is discolored and at the same time, It is preferable to use a coating material.

As described above, the present invention is not limited to the above-described embodiment, but may be applied to a lifeboat for life rescue boats according to the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: Lifesaving lifeboat 11: Thrust device
12: Land transport handle 110: Life boat body
111: DC motor drive 112: DC motor
120: handle portion 121: first handle portion
122: second handle 130: control box part
140: GPS unit 150: Signal output unit
1210: first cover part 1211: first magnetic body
1212: first rotating body part 1213: first hall sensor
1214:

Claims (4)

Life rescue boats equipped with a thrust device,
A liferaft body which is lifted by a rescue person and rides on the hull;
A grip portion provided on one side of the front end of the lifeboat body and on the other side opposite to the one side and controlling the moving speed and direction of the hull by the operation of the rescue staff; And
And a control box unit installed inside the lifeboat body and controlling the thrust device to correspond to an operation signal of the handle,
The handle
A first cover part provided on one side of a front end of the lifeboat body part and having a first magnetic body attached thereto, a first rotating body part provided in the first cover part and rotated by the operation of the structural member, A first handle portion including a first sensor portion having a plurality of first hall sensors sequentially disposed in a rotating direction of the first rotating body portion on the first rotating body portion; And
A second cover portion provided on the other end of the front end of the lifeboat body portion and having a second magnetic body attached thereto, a second rotating body portion provided in the second cover portion and rotated by the operation of the structural member, And a second grip portion including a second sensor portion having a plurality of second hall sensors sequentially disposed on the second rotating body portion in the rotating direction of the second rotating body portion;
Wherein the plurality of first Hall sensors generate a predetermined speed control signal corresponding to each position when the first Hall sensor is rotated to a position corresponding to the first magnetic body and transmit the generated speed control signal to the control box;
Wherein the plurality of second hall sensors generate a direction control signal previously set to correspond to each position when the second hall sensor rotates to a position corresponding to the second magnetic body and transmit the generated direction control signal to the control box;
The thrust device is provided at the rear end of the hull,
A GPS unit for generating positional information of the hull, and a signal output unit for outputting an emergency call signal in front of the hull,
The control box unit controls driving of the thrust device according to the speed control signal or the direction control signal, controls the position information of the hull and the emergency call signal to be outputted to the outside;
Wherein the case of the control box part is made of a polypropylene resin composition, wherein the polypropylene resin composition is a low-gloss polypropylene resin composition comprising an ethylene-propylene block copolymer, and the ethylene-propylene block copolymer is a homopolypropylene polymer and ethylene Propylene copolymer, wherein the ethylene-propylene copolymer has a weight ratio of ethylene to the ethylene content of 0.5 to 2.0, and the melt index of the ethylene-propylene block copolymer is from 5 to 30 g / (XS /? HomoPP) of the xylene-soluble portion (XS) and the propylene homopolymer of the ethylene-propylene block copolymer is 3 to 8, and the polypropylene resin composition comprises 100 parts by weight of the polypropylene resin composition 0.1 to 0.5 parts by weight of a heat-resistant stabilizer based on 100 parts by weight of the resin;
Wherein the coating composition for the antifouling coating comprises boric acid and sodium carbonate in a molar ratio of 1: 0.01 to 1: 2, and the thickness of the coating layer is 500 to 2000 ANGSTROM,
Wherein a temperature discoloring portion whose color changes according to a temperature is applied to the outer surface of the case of the control box portion, wherein the temperature discoloring portion has two or more temperature discoloring materials whose color changes when the temperature is equal to or higher than a predetermined temperature, And a protective film layer is coated on the temperature discoloring part to prevent the temperature discoloration part from being damaged. The method according to claim 1, Lifeboat. delete delete delete

Images