KR20240024557A - Drowning search and rescue system - Google Patents

Abstract

The present invention relates to a drowning person search and rescue system, which includes a distress rescue request terminal worn by a drowning person and operated in a closed-loop manner, installed on a ship, and exclusively receiving distress signals transmitted from the distress rescue request terminal, and A distress and rescue request receiver for ships that analyzes signals, displays the location of the drowning person and the ship on an electronic chart, and provides a movement route for search and rescue on the electronic chart, and transmits the distress signal to the ship or other ships. It includes a general-purpose receiver for coastal stations that receives distress and rescue requests from other ships in an open loop manner.

Description

Drowning SEARCH AND RESCUE SYSTEM}

The present invention relates to drowning person search and rescue technology, and more specifically, to a drowning person search and rescue system that transmits a distress location signal of a drowning person in a distress situation and enables search and rescue of the drowning person's distress location quickly and accurately.

As casualties such as deaths and disappearances occur due to falls at sea, it is important to quickly recognize distress situations and proactively respond, including rapid rescue activities.

However, when a distress accident occurs on a fishing boat, such as a crew member falling at sea or an emergency escape, it is difficult to confirm the exact location using the fishing boat location transmitting device, so rescue takes a lot of time and money.

Accordingly, when a fishing boat crew becomes distressed at sea, a personal location transmitting device is being developed to confirm the exact location and quickly rescue the person in distress.

Existing personal location transmitting devices have limitations as radio waves do not reach fishing boats far from land, and communication costs are high due to the use of satellites.

Therefore, there is a need to develop a system that can improve the speed of rescue by disseminating the location signal for rescue of victims over a long distance without communication costs.

Korean Patent No. 10-2149203 (2020.08.31) Korean Patent Publication No. 10-2020-0106278 (2020.09.14)

One embodiment of the present invention is intended to provide a search and rescue system for drowning persons that transmits a distress location signal of a drowning person in a distress situation and enables search and rescue of the drowned person's distress location quickly and accurately.

One embodiment of the present invention seeks to provide a search and rescue system for drowned people that can increase the search and rescue rate of drowned people by expanding the transmission range of distress location signals through multi-hop-based relay communication through a communication buoy. .

One embodiment of the present invention seeks to provide a drowning person search and rescue system that can quickly respond to a drowning person situation by transmitting a distress signal to the outside without interruption of communication using various communication means.

Among the embodiments, the drowning person search and rescue system is installed on a distress rescue request terminal worn by a drowning person and operated in a closed loop manner, a ship, and exclusively receives a distress signal transmitted from the distress rescue request terminal and receives the distress signal. A distress and rescue request receiver for ships that analyzes and displays the location of the drowning person and the position of the ship on the electronic chart and provides a movement route for search and rescue on the electronic chart, and sends the distress signal to the ship or a ship other than the ship. It includes a general-purpose receiver for coastal stations that receives distress and rescue requests from other ships in an open loop manner.

The distress rescue request terminal may control the battery so that the LED operation time of the distress rescue request terminal is longer than the transmission operation time of the distress signal.

The distress rescue request dedicated receiver for the ship may be connected to at least one communication view that is connected to the distress rescue request terminal and relays the distress signal.

The marine distress request dedicated receiver may set a communication topology so that at least one communication view relays the distress signal through multi-hop communication.

The ship's distress rescue request dedicated receiver sets at least one candidate movement route based on the location of the drowning person and the position of the ship, analyzes the direction and speed of the wind and the direction and speed of the ocean current, and provides the optimal route on the electronic chart. Movement routes can be provided.

The ship's distress rescue request dedicated receiver analyzes the electronic chart to calculate the distance to the coast station's distress rescue request general receiver, and if the distance is within a certain standard, one of VHF/DSC communication or LTE-M communication methods is used. By selecting it, you can connect to the universal distress and rescue request receiver for the coast station.

The distress rescue request dedicated receiver for ships tracks the movement of the ship and, when the distance exceeds the specific standard, can seamlessly communicate with the universal distress rescue request receiver for coastal stations through satellite communication.

The disclosed technology can have the following effects. However, since it does not mean that a specific embodiment must include all of the following effects or only the following effects, the scope of rights of the disclosed technology should not be understood as being limited thereby.

The drowning person search and rescue system according to an embodiment of the present invention can quickly and accurately search and rescue the drowning person's distress location by transmitting a distress location signal of the drowning person in a distress situation.

The search and rescue system for drowned people according to an embodiment of the present invention can increase the search and rescue rate of drowned people by expanding the transmission range of distress location signals through multi-hop-based relay communication through a communication buoy.

The drowning person search and rescue system according to an embodiment of the present invention can quickly respond to a drowning person situation by transmitting a distress signal to the outside without interruption of communication using various communication means.

1 is a diagram illustrating a search and rescue system for a drowning person according to an embodiment of the present invention.
FIG. 2 is a diagram explaining the configuration of the distress rescue request terminal in FIG. 1.
FIG. 3 is a diagram illustrating the distress signal relay between the distress rescue request terminal in FIG. 1 and the distress rescue request dedicated receiver for ships.
FIG. 4 is a diagram illustrating the configuration of a receiver dedicated to a distress and rescue request for a ship shown in FIG. 1.
FIG. 5 is a flowchart illustrating the drowning person search and rescue process performed in the drowning person search and rescue system shown in FIG. 1.

Since the description of the present invention is only an example for structural or functional explanation, the scope of the present invention should not be construed as limited by the examples described in the text. In other words, since the embodiments can be modified in various ways and can have various forms, the scope of rights of the present invention should be understood to include equivalents that can realize the technical idea. In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment must include all or only such effects, so the scope of the present invention should not be understood as limited thereby.

Meanwhile, the meaning of the terms described in this application should be understood as follows.

Terms such as “first” and “second” are used to distinguish one component from another component, and the scope of rights should not be limited by these terms. For example, a first component may be named a second component, and similarly, the second component may also be named a first component.

When a component is referred to as being “connected” to another component, it should be understood that it may be directly connected to the other component, but that other components may exist in between. On the other hand, when a component is referred to as being “directly connected” to another component, it should be understood that there are no other components in between. Meanwhile, other expressions that describe the relationship between components, such as "between" and "immediately between" or "neighboring" and "directly neighboring" should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly indicates otherwise, and terms such as “comprise” or “have” refer to implemented features, numbers, steps, operations, components, parts, or them. It is intended to specify the existence of a combination, and should be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

For each step, identification codes (e.g., a, b, c, etc.) are used for convenience of explanation. The identification codes do not explain the order of each step, and each step clearly follows a specific order in context. Unless specified, events may occur differently from the specified order. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the opposite order.

The present invention can be implemented as computer-readable code on a computer-readable recording medium, and the computer-readable recording medium includes all types of recording devices that store data that can be read by a computer system. . Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices. Additionally, the computer-readable recording medium can be distributed across computer systems connected to a network, so that computer-readable code can be stored and executed in a distributed manner.

All terms used herein, unless otherwise defined, have the same meaning as commonly understood by a person of ordinary skill in the field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as consistent with the meaning they have in the context of the related technology, and cannot be interpreted as having an ideal or excessively formal meaning unless clearly defined in the present application.

1 is a diagram illustrating a search and rescue system for a drowning person according to an embodiment of the present invention.

Referring to FIG. 1, the drowning person search and rescue system 100 may include a distress rescue request terminal 110, a distress rescue request dedicated receiver 130 for ships, and a distress rescue request general receiver 150 for coastal stations.

The distress rescue request terminal 110 can be worn by a drowning person and operated in a closed-loop manner. In one embodiment, the distress rescue request terminal 110 may be implemented as a wearable terminal so that it can be worn on the body. The distress rescue request terminal 110 may be implemented in the form of a smart watch that can be worn on the wrist, but is not necessarily limited to this and may be implemented in various forms that are easy to wear. Here, the distress rescue request terminal 110 may be implemented to be water-resistant to a predetermined or greater water depth, for example, 10 m, to suit the maritime environment.

The distress rescue request terminal 110 is operated in a closed loop manner and can transmit a distress signal even when the connection with the distress rescue request dedicated receiver 130 for ships is lost, and the distress rescue request dedicated receiver 130 for ships can also be used to communicate with the ship. An alarm may be triggered in a distress situation.

When distress occurs, the distress rescue request terminal 110 can automatically transmit GPS (Global Positioning System) information and distress signals and provide them to the distress rescue request dedicated receiver 130 for ships. In one embodiment, the distress rescue request terminal 110 has a built-in GPS (Global Positioning System) and can transmit a distress signal along with distress location information of a drowning person. Here, the distress rescue request terminal 110 and the ship's distress rescue request dedicated receiver 130 can provide a wide communication radius by transmitting and receiving distress signals through NB (Narrow Band)-RF communication. The distress rescue request terminal 110 may further include the distress request time in the distress signal.

The ship's distress rescue request receiver 130 is installed on the ship and exclusively receives the distress signal transmitted from the distress rescue request terminal 110 worn by the drowning person, analyzes the distress signal, and displays the location of the drowning person and the ship on the electronic chart. and can provide movement routes for search and rescue on electronic charts. The distress rescue request dedicated receiver 130 for ships may be connected to at least one communication buoy 120 that is connected to the distress rescue request terminal 110 and relays a distress signal.

At least one communication view 120 is wirelessly connected to the distress rescue request terminal 110 and can serve as a repeater to relay a distress signal containing distress location information to the distress rescue request dedicated receiver 130 for ships. In one embodiment, at least one communication view 120 connected to the distress rescue request terminal 110 may relay a distress signal using the same frequency as the distress rescue request terminal 110. At least one communication view 120 may form a multi-hop network to extend the relay distance of the distress signal. A multi-hop network refers to a transmission method in which a message is not transmitted directly from the sending node to the final destination node, but rather passes through one or more intermediate nodes. Here, the transmitting node corresponds to the distress rescue request terminal 110, the final destination node corresponds to the distress rescue request dedicated receiver 130 for ships, and the intermediate node may correspond to at least one communication view 120.

The ship's distress rescue request dedicated receiver 130 may set a communication topology so that at least one communication view 120 relays a distress signal through multi-hop communication. In one embodiment, the ship's distress rescue request dedicated receiver 130 is available in various shapes such as mesh topology, tree topology, ring topology, star topology, and bus topology. You can select and set one of the communication topologies.

The ship's distress rescue request dedicated receiver 130 can receive a distress signal containing distress location information of a drowning person, determine the location of the drowning person, and conduct a search. Here, the distress rescue request dedicated receiver 130 for ships can receive a distress signal using the same frequency as the distress rescue request device 110. The ship's distress rescue request dedicated receiver 130 can receive a distress signal, recognize the drowning person's distress situation, and generate an alarm within the ship to provide audio and visual notification of the drowning person's occurrence situation.

The ship's distress rescue request dedicated receiver 130 sets at least one candidate movement route based on the location of the drowning person and the location of the vessel and analyzes the direction and speed of the wind and ocean current to determine the optimal movement on the electronic chart. A route can be provided.

The electronic chart display 140 can display an electronic chart and visually display information such as the location of the drowning person, the location of the vessel, and the optimal movement path from the location of the vessel to the location of the drowning person on the electronic chart. In one embodiment, the electronic chart display 140 displays the drowning person's distress location included in the received distress signal in real time on the electronic chart in conjunction with the ship's distress rescue request dedicated receiver 130 to show the drowning person's location and movement path. Allows continuous tracking. Here, the location of the drowning person and the vessel are displayed on the electronic chart, and the dispatch route for the search is displayed, helping to facilitate quick search and rescue.

The ship's distress rescue request dedicated receiver (130) analyzes the electronic chart to calculate the distance to the coastal station's distress rescue request universal receiver (150) and selects a communication method with the coastal station's distress rescue request universal receiver (150) according to the distance to connect. can be performed. In one embodiment, the distress rescue request dedicated receiver 130 for ships selects one of VHF/DSC communication or LTE-M communication methods when the distance from the universal distress rescue request receiver 150 for coastal stations is within a certain standard. Connection with the national distress rescue request universal receiver 150 is performed, and if a certain standard is exceeded, communication with the coastal station distress universal request receiver 150 can be performed seamlessly through satellite communication.

The universal distress and rescue request receiver 150 for coastal stations can receive distress signals from ships or ships other than ships in an open-loop manner. When a distress signal is received through VHF/DSC communication, LTE-M communication, or satellite communication, the general-purpose distress rescue request receiver 150 for coastal stations sends rescue forces such as nearby guard ships and rescue ships of the responsible rescue team based on the distress location of the drowning person. can be dispatched to the scene for search and rescue. In one embodiment, the general-purpose distress rescue request receiver 150 for a coastal station may periodically receive a moving position from a rescue vessel in the responsible district and provide the optimal route to the location of the drowning person to the rescue vessel in the responsible district. The universal distress rescue request receiver 150 for coastal stations detects when a rescue vessel enters the area near the drowning person and allows the rescue vessel to directly receive the distress signal, allowing the location of the drowned person to be confirmed in real time. The earth rescue vessel can be equipped with a dedicated distress rescue request receiver (130) for ships, and can navigate by receiving a route to the location of the drowning person from the universal distress rescue request receiver (150) for coastal stations, and has a distress rescue request terminal (110). When entering the transmission range, a distress signal containing the location of the drowning person can be directly received from the distress rescue request terminal 110 and the location of the drowning person can be searched in real time.

FIG. 2 is a diagram explaining the configuration of the distress rescue request terminal in FIG. 1.

Referring to FIG. 2, the distress rescue request terminal 110 may be implemented to be worn by a drowning person and operated in a closed loop manner. The distress rescue request terminal 110 may be implemented as a wearable terminal such as a smart watch for ease of wearing. The distress rescue request terminal 110 may include a distress location signal transmitter 210, a light emitting diode (LED) 230, a battery 250, and a control unit 270.

The distress location signal transmitting unit 210 may transmit a distress location signal. In one embodiment, the distress location signal transmitting unit 210 may include a GPS module and receive a GPS signal including location information and time information of the distress rescue request terminal 110 from a GPS satellite. Here, the distress location signal transmitting unit 210 may recognize the maritime distress situation of the wearer of the distress rescue request terminal 110 and transmit a distress signal including distress location information. The distress location signal transmitting unit 210 can automatically recognize a maritime distress situation through a water detection sensor, or can manually recognize a maritime distress situation through a rescue request according to the wearer's operation of the SOS button. In other words, the distress location signal transmitting unit 210 can automatically transmit GPS information and a distress signal when a drowning person directly operates the SOS button or sea water is detected by the distress rescue request terminal 110 worn when distress occurs.

The LED 230 may emit light to allow the wearer to visually recognize the operating state of the distress rescue request terminal 110. In one embodiment, the LED 230 may emit a specific color while the distress rescue request terminal 110 is transmitting a distress signal to inform the wearer of whether the distress signal is normally transmitted in a distress situation. Here, the LED 230 can indicate the charging time of the battery 250 by emitting different specific colors based on the state of the battery 250. The wearer of the distress rescue request terminal 110 can check the power “ON/OFF”, battery 250 charging status, and communication status using the LED 230.

The battery 250 can supply power required for each component operation of the distress request terminal 110. The battery 250 may be implemented to enable wireless charging.

The control unit 270 can generally control each component operation of the distress request terminal 110. In one embodiment, the control unit 270 may control the battery 250 to make the operation time of the LED 230 longer than the transmission operation time of the distress signal. That is, the control unit 270 can set the operation time of the LED 230 to operate longer than the transmission period of the distress location signal. Additionally, the control unit 270 may set the transmission section of the distress location signal based on the state of the battery 250. For example, the control unit 270 may determine whether to transmit the distress location signal for a period of 1 hour with a maximum transmission period, a period of 5 hours with a minimum transmission period, or select a middle ground.

The distress rescue request terminal 110 can dynamically control the transmission frequency for each transmission section of the distress signal based on the battery status, and at this time, the LED operation time can be controlled to be longer than the transmission section of the distress signal.

FIG. 3 is a diagram illustrating the distress signal relay between the distress rescue request terminal in FIG. 1 and the distress rescue request dedicated receiver for ships.

Referring to FIG. 3, the distress rescue request terminal 110 can transmit a distress signal, and the distress signal transmission range is expanded by the communication view 120 within the transmission range of the distress rescue request terminal 110 to provide distress rescue. A distress signal can be transmitted to a ship-specific distress rescue request receiver 130 installed on a ship far away from the request terminal 110.

A buoy is a buoy that floats on the surface of the water where ships are sailing, such as in ports or rivers, to provide navigation guidance and the location of reefs. The communication view 120 may be implemented with a communication module built into the buoy to transmit and receive distress signals. When multi-hop communication is established by at least one communication view 120, the distress signal is relayed from the distress rescue request terminal 110 to the ship's distress rescue request dedicated receiver 130 to further expand the transmission range. This allows the distress search range to be expanded. At least one communication view 120 checks the interconnection status through two-way communication, and a specific communication view 120 transmits a distress signal to the vessel distress request dedicated receiver 130 through one-way communication.

The distress rescue request dedicated receiver 130 for ships is connected to at least one communication view 120 that is connected to the distress rescue request terminal 110 and relays the distress signal, and receives the distress signal transmitted from the distress rescue request terminal 110. can do. Here, an NB-RF-based multi-hop network configuration may be established between the distress rescue request terminal 110, at least one communication view 120, and the ship's distress rescue request dedicated receiver 130. At this time, the distress rescue request terminal 110 is operated in a closed loop manner and can exclusively receive distress signals from the ship's distress rescue request receiver 130 connected to the distress rescue request terminal 110. The ship's distress rescue request dedicated receiver 130 may set a communication topology so that at least one communication view 120 relays a distress signal through multi-hop communication.

FIG. 4 is a diagram illustrating the configuration of a receiver dedicated to a distress and rescue request for a ship shown in FIG. 1.

Referring to Figure 4, the ship's distress rescue request dedicated receiver 130 is installed on the ship and includes a distress signal receiver 410, a distress signal analysis unit 430, an electronic chart analysis unit 450, and a control unit 470. You can.

The distress signal receiver 410 is connected to the distress rescue request terminal 110 or at least one communication view 12 connected to the distress rescue request terminal 110 and uses the distress signal transmitted from the distress rescue request terminal 110. It can be received by .

The distress signal analysis unit 430 analyzes the distress signal and displays the location of the drowned person and the ship on an electronic navigational chart (ENC) in conjunction with the electronic chart display 140, which displays the drowned person's position. Allows location to be tracked. Here, the location of the drowned person may be determined based on distress location information included in the distress signal. The location of the vessel may be determined based on the location information included in the GPS signal by receiving a GPS signal including location information and time information of the marine distress and rescue request receiver 130 from a GPS satellite, including a GPS module.

The distress signal analysis unit 430 can provide a movement route for search and rescue on the electronic chart based on the location of the drowning person and the location of the vessel. In one embodiment, the distress signal analysis unit 430 sets at least one candidate movement path based on the location of the drowning person and the location of the vessel, analyzes the direction and speed of the wind and the direction and speed of the ocean current, and displays it on the electronic chart. We can provide the optimal travel route. Here, the distress signal analysis unit 430 is connected to navigation equipment installed on the ship, such as radar, speedometer, and gyrocompass, and analyzes the direction and speed of the wind and the direction and speed of the ocean current to determine the distress of the drowning person at the location of the ship. The optimal travel route to reach the location in the shortest time can be obtained and provided on the electronic chart. In one embodiment, the distress signal analysis unit 430 calculates the final final speed of the vessel through the vector sum of the speed (Vw) and the speed of the ocean current (U), where weather conditions are reflected in the normal speed of the vessel, for each of at least one candidate movement path. The speed (Vg) can be obtained, and the movement path with the shortest movement time can be determined as the optimal movement route based on the distance on at least one candidate movement route and the final speed (Vg) of the vessel. Here, the final speed (Vg) of the ship can be defined by the following equation.

[Equation]

Vg(Δt) = Vw(Δt) + U(Δt)

The distress signal analysis unit 430 displays route guidance for locating the drowning person based on the location of the ship and the drowning person on the electronic chart, allowing the location of the drowning person to be tracked.

The electronic chart analysis unit 450 analyzes the electronic chart, selects a communication method based on the distance from the maritime station distress rescue request universal receiver 150, and connects with the maritime station distress rescue request universal receiver 150 using the selected communication method. By performing this, the distress signal can be transmitted to the universal distress and rescue request receiver 150 for the maritime station. In other words, the electronic chart analysis unit 450 can transmit distress signals through various communication methods depending on the distance from the coastal station distress and rescue request universal receiver 150. In one embodiment, the electronic chart analysis unit 450 can track the movement of the ship by analyzing the electronic chart, and if the distance between the ship's location and the coastal station distress rescue request universal receiver 150 is within a certain standard, the VHF /If one of the DSC communication or LTE-M communication methods is selected and the distance exceeds a certain standard, communication with the universal distress and rescue request receiver 150 for the maritime station can be performed without interruption through satellite communication.

For example, when the VHF/DSC communication method is selected, the ship's distress rescue request dedicated receiver 130 works in conjunction with the VHF/DSC communication device installed on the ship and converts the received distress signal into a DSC (Digital Selective Calling) message for the coast station. The distress rescue request can be transmitted to the general receiver 150. Here, the VHF/DSC communication device is a wireless communication device installed on a ship and can transmit emergency messages using frequencies in the VHF band. The VHF/DSC communication device can transmit an emergency message as a distress alert using DSC (Digital Selective Call) for the open-loop operation of the ship's distress rescue request dedicated receiver 130.

For example, when the LTE-M communication method is selected, the ship's distress rescue request dedicated receiver 130 links the LTE-M communication device installed on the ship and transmits the received distress signal as large data to the coast 100 km away from the sea. It can be delivered. Here, the ship's distress rescue request dedicated receiver 130 implements e-navigation through linkage with LTE-M communication devices, enabling central control and monitoring of drowning situations at the coastal station. LTE-M communication devices can provide a variety of services using an LTE-based high-speed maritime wireless communication network. LTE-M is a communication network that enables ultra-high-speed data communication up to 100 km offshore, and serves to provide e-navigation services to sailing ships. e-Navigation utilizes port information and weather information in real time to help ensure safe navigation of ships. The LTE-M communication device uses the LTE-M network for the open-loop operation of the ship's distress rescue request dedicated receiver 130 to report the drowning person's occurrence situation, including the location of the drowned person at sea, through LTE, WiFi, etc. It can be transmitted to marine safety equipment with wireless communication functions and can provide location tracking of drowning people and streaming of electronic navigation charts.

For example, when the satellite communication method is selected, the marine distress request-dedicated receiver 130 transmits distress signals through linkage with the IRIDIUM-based marine satellite transceiver installed on the ship and provides a universal distress rescue request for a distant coastal station. It can be transmitted to the receiver 150.

The ship's distress rescue request dedicated receiver 130 works in conjunction with the communication equipment installed on the ship to broadcast a distress signal with a frequency of 160 MHz to other ships within a radius of 10 km, LTE transmission up to 20 km, or VHF transmission up to 80 km. The transmission range of distress signals can be expanded by transmitting LTE-M up to 100 km, VDES transmission up to 120 km, or D-HF transmission up to 200 km.

The control unit 470 controls the overall operation of the ship's distress rescue request dedicated receiver 130 and controls the control flow or data flow between the distress signal receiver 410, the distress signal analysis unit 430, and the electronic chart analysis unit 450. It can be managed.

FIG. 5 is a flowchart illustrating the drowning person search and rescue process performed in the drowning person search and rescue system shown in FIG. 1.

Referring to FIG. 5, the drowning person search and rescue system 100 may transmit a distress signal from the distress rescue request terminal 110 (step S510). The distress rescue request terminal 110 is worn by a drowning person and is operated in a closed loop manner, so that it can transmit a distress signal even when the connection with the ship's dedicated distress rescue request receiver 130 is lost. The distress rescue request terminal 110 may check the GPS location and periodically transmit a distress signal including the location of the drowning person. The distress rescue request terminal 110 can adjust the transmission cycle of the distress signal based on the battery status. In one embodiment, the distress rescue request terminal 110 may control the battery so that the LED operation time of the distress rescue request terminal 110 is longer than the distress signal transmission operation time.

The drowning person search and rescue system 100 may have at least one communication buoy 120 relay a distress signal through multi-hop communication (step S530). The distress rescue request terminal 110 is connected to at least one communication view 120 and can relay a distress signal through multi-hop-based relay communication through the communication view 120 to expand the transmission range of the distress signal.

The drowning person search and rescue system 100 may exclusively receive a distress signal from the ship's distress and rescue request receiver 130 (step S550). The distress rescue request dedicated receiver 130 for ships may receive a distress signal transmitted from the distress rescue request terminal 110 or relayed from at least one communication view 120 connected to the distress rescue request terminal 110.

When a distress signal is received from the ship's dedicated distress and rescue request receiver 130, the drowning person search and rescue system 100 displays the location of the drowning person and the location of the ship on the electronic chart and provides a movement route for search and rescue on the electronic chart. There is (step S570). The ship's distress rescue request dedicated receiver 130 sets at least one candidate movement route based on the location of the drowning person and the location of the vessel and analyzes the direction and speed of the wind and ocean current to determine the optimal movement on the electronic chart. Providing a route allows for quick search and rescue.

The drowning person search and rescue system 100 may receive a distress signal from the coastal station distress and rescue request universal receiver 150 in an open loop manner (step S590).

The drowning person search and rescue system 100 according to one embodiment is configured with an NB-RF-based multi-hop network to receive a distress location signal transmitted by a distress rescue request terminal from a ship's distress rescue request receiver, confirm the location of the drowned person, and It allows for search and rescue, and allows for the transmission of distress signals by performing uninterrupted communication using various communication methods depending on the distance from the coastal station distress and rescue request universal receiver.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can do it.

100: Drowning person search and rescue system
110: Distress rescue request terminal 120: Communication view
130: Dedicated receiver for distress and rescue requests for ships
140: Electronic chart indicator
150: Universal distress and rescue request receiver for coastal stations
210: Distress location signal transmitter 230: LED
250: battery 270: control unit
410: Distress signal receiving unit 430: Distress signal analysis unit
450: Electronic chart analysis unit 470: Control unit

Claims (7)

A distress rescue request terminal worn by the drowning person and operated in a closed loop manner;
It is installed on a ship and exclusively receives the distress signal transmitted from the distress rescue request terminal, analyzes the distress signal, displays the location of the drowning person and the location of the vessel on the electronic chart, and shows the movement route for search and rescue on the electronic chart. A dedicated receiver for distress and rescue requests for ships provided to; and
A drowning person search and rescue system comprising a universal distress and rescue request receiver for a coastal station that receives the distress signal from the vessel or another vessel other than the vessel in an open loop manner.
The method of claim 1, wherein the distress rescue request terminal is
A search and rescue system for a drowning person, characterized in that the battery is controlled so that the LED operation time of the distress rescue request terminal is longer than the transmission operation time of the distress signal.
The method of claim 1, wherein the dedicated receiver for distress and rescue requests for ships is
A search and rescue system for a drowning person, characterized in that it is connected to at least one communication view that is connected to the distress rescue request terminal and relays the distress signal.
The method of claim 3, wherein the dedicated receiver for distress and rescue requests for ships is
A search and rescue system for drowned persons, characterized in that a communication topology is set so that at least one communication view relays the distress signal through multi-hop communication.
The method of claim 1, wherein the dedicated receiver for distress and rescue requests for ships is
Based on the location of the drowning person and the location of the vessel, at least one candidate movement route is set and the direction and speed of the wind and the direction and speed of the ocean current are analyzed to provide an optimal movement route on the electronic chart. A drowning person search and rescue system.
The method of claim 1, wherein the dedicated receiver for distress and rescue requests for ships is
Analyze the electronic chart to calculate the distance to the universal distress rescue request receiver for the coastal station, and if the distance is within a certain standard, select one of VHF/DSC communication or LTE-M communication methods to request distress rescue for the coastal station. A drowning person search and rescue system characterized by connection to a universal receiver.
The method of claim 6, wherein the dedicated receiver for distress and rescue requests for ships is
A drowning person search and rescue system that tracks the movement of the vessel and, when the distance exceeds the specific standard, continuously communicates with the universal distress and rescue request receiver for coastal stations through satellite communication.