KR101892464B1 - Wearable life-saving device and life-saving system using the same - Google Patents

Abstract

An exemplary embodiment of the present invention relates to a wearable life preserver and a life preserver using the same, and a technical problem to be solved is to provide a wearable life preserver capable of transmitting position information and a structural application installed in the device, And to facilitate the monitoring and structure of the marine leisure population enjoying marine leisure activities such as boats.
To this end, an embodiment of the present invention includes a wearable type frame module that can be worn on a body part of a user, and a life module provided in the frame module, wherein the life module is directly connected to at least one external device A first communication unit for transmitting and receiving a position information signal or an alarm signal; And a lifesaving application are connected to the external device and are connected to the external device by execution of the lifesaving application and transmit the current position information to the external device every preset cycle, And a control unit for receiving the alarm signal and outputting the alarm signal to the outside.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wearable life preserver and a life preserver using the wearable life preserver.

One embodiment of the present invention relates to a wearable life preserver and a life preserver system using the same.

When the hot summer starts, people go to the mountains or the mountains to cool the heat, and the company starts summer vacation and goes out with the family.

Many crowds gather around the sea or river at once, and security personnel are deployed in each area to prepare for accidents that may occur unexpectedly, but it can happen irrevocably due to late accidents.

Also, if you are in a situation where you are drowning due to an unforeseen accident while you are leisurely enjoying a sea bath or sea fishing, a water motorcycle, a leisure boat, or a skin scuba in a remote sea or river, Dangerous situations can occur.

Therefore, it is necessary to automatically transmit the rescue signal to the rescue company when the user is in a dangerous situation.

Recently, the risk of marine accidents is increasing due to expansion of fishing boats, various marine leisure activities and tourism demand.

Emergency position indicating radio equipment (EPIRB) is required to transmit distress and distress location through satellites, but it is difficult to cope with emergencies for small ship or leisure. to be.

Domestic technology has developed a lifejacket attached with a location transmitter, and commercialization is ongoing, but it has been commercialized for the purpose of safe operation for fishermen and it is inadequate for leisure activities.

In addition, there is a difficulty in rescue activities due to the inability to track the location of the marine leisure population, and the occurrence of marine casualties is large in the frequency of occurrence, and the prevention effect is insufficient. There is a need to improve survival rate through tracking

Open Patent Publication No. 10-2015-0085871 'Emergency Rescue Request Mobile App'

An embodiment of the present invention can monitor and structure the position of the marine leisure population enjoying marine leisure activities such as sea fishing, water motorcycle, and leisure boat through a wearable life search device capable of transmitting location information and a structural application installed in the device And a life-saving system using the wearable life-saving apparatus.

A wearable life preserver according to an embodiment of the present invention includes a wearable frame module that can be worn on a part of a user's body and a life preserver module provided on the frame module, A first communication unit for transmitting and receiving a position information signal or an alarm signal; And a lifesaving application are connected to the external device and are connected to the external device by execution of the lifesaving application and transmit the current position information to the external device every preset cycle, And outputting the alarm signal to the outside.

The life-saving application may be an Asynchronous JavaScript and XML (Ajax) application, and the life-span module may further include a signal output unit for outputting the external signal under the control of the control unit.

The life-saving module includes a piezoelectric sensor for sensing a heartbeat in close contact with a part of a user's body; Pushing means for providing a pushing force to bring the piezoelectric sensor into close contact with a part of the user's body; And a second communication unit for transmitting status information of a user based on the heartbeat to an external device, wherein the controller calculates a heartbeat sensed by the piezoelectric sensor and transmits status information of the user to the second communication unit To be transmitted to the external device via the network.

According to another aspect of the present invention, there is provided a life preserver system including: a wearable life preserver; And a control unit for receiving current position information from the wearable life preserver connected by execution of the life expectancy application, entering a predetermined radius of a dangerous area preset by the user on the basis of the received current position information, A weather communication server for transmitting an alarm signal to the wearable life preserver in the vicinity of a dangerous area or an occurrence of a weather event, wherein the sea communication server receives, from the wearable life preserver, If not, a distress signal for the user can be generated and output to the outside.

And an emergency rescue server connected to the maritime communication server through a wired / wireless communication network, wherein the maritime communication server can transmit a distress signal for the generated user to the emergency rescue server.

According to another aspect of the present invention, there is provided a life-saving system comprising: a wearable life preserver; And a control unit for receiving current position information from the wearable life preserver connected by execution of the life expectancy application, entering a predetermined radius of a dangerous area preset by the user on the basis of the received current position information, A weather communication server for transmitting an alarm signal to the wearable life preserver in the vicinity of a dangerous area or an occurrence of a weather event, wherein the sea communication server receives, from the wearable life preserver, And generates a distress signal for the user and outputs the distress signal to the outside when the user is determined to be in an emergency state based on the state information of the user.

And an emergency rescue server connected to the maritime communication server through a wired / wireless communication network, wherein the maritime communication server can transmit a distress signal for the generated user to the emergency rescue server.

The wearable life preserver according to an embodiment of the present invention and the life preserver system using the wearable life preserver continuously inform the current position information in the sea, provide an alarm when moving to a dangerous area, treat the emergency rescue procedure as a distress .

1 is a view showing a wearable life preserver according to an embodiment of the present invention.
FIG. 2 is a view schematically showing the life module of FIG. 1; FIG.
3 is a view showing a life-time application provided in the life-case module of FIG.
4 is a view of a life preserver system according to another embodiment of the present invention.
5 is a block diagram showing a configuration for rapid / slow charging of a wearable life preserver according to various embodiments of the present invention.
6 is a flowchart showing a fast / slow charging sequence during operation of the wearable life preserver according to various embodiments 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 as well, without departing from the spirit or scope of the present invention. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in 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. 1 is a view showing a wearable life preserver according to an embodiment of the present invention, FIG. 2 is a view schematically showing the life preserver module of FIG. 1, FIG. 3 is a view showing a life preserver application FIG.

1, a wearable life preserver 10 according to an embodiment of the present invention includes a wearable frame module 12 that can be worn on a part of a user's body, a life module 11 provided on the frame module, .

The frame module 12 may be made of a lightweight and compact wristwatch-type frame that can be worn on the user's wrist.

Accordingly, the wearable life preserver 10 according to an exemplary embodiment of the present invention can be manufactured as a lightweight and compact wristwatch-type position transmitter that can be worn on the wrist of a user.

However, the present invention does not limit the form of the wearable life preserver 10, but it is also applicable to a smart device capable of operating an application such as an Ajax (Asynchronous JavaScript and XML) application and capable of real-time data transmission and reception.

The wearable life preserver 10 is connected to the maritime communication server through an application such as an Ajax application.

2, the life preserver module 11 of the wearable life preserver according to an embodiment of the present invention includes a first communication unit 111, a control unit 112, a signal output unit 113, a second communication unit 114 ), A piezoelectric sensor 115, and a pushing means 116.

Although not shown, the life preserver module 11 further includes a GPS receiver for receiving a GPS satellite signal and identifying and outputting the current position of the user (i.e., the life preserver module). The GPS receiving unit includes a GPS receiving antenna for receiving a GPS satellite signal and a GPS module for calculating position coordinates from the received signal to calculate a position coordinate by receiving the GPS satellite signal. In the present invention, the GPS receiver receives a satellite signal from a GPS satellite by transmitting a signal to the GPS satellite based on the latest position coordinates stored in a memory (not shown), so that the GPS receiver can find the position coordinates more quickly.

The first communication unit 111 is an interface device directly connected to at least one external device (for example, an ocean communication server) to transmit and receive a position information signal or an alarm signal.

The control unit 112 is provided with a life-saving application, is connected to an external device by execution of a life-like application, transmits current position information to the external device at predetermined intervals, generates a weather event And outputs the alarm signal to the outside. At this time, the alarm signal includes information indicating the current position of the user, informing the external device of the location of the accident area, and transmitting a message to the emergency rescue server through the external device indicating that the user is in danger.

The lifesaving application is an app that operates in a wearable life-saving device capable of position transmission for monitoring and structure of marine leisure population such as sea fishing, water motorcycle, leisure boat, etc. As shown in FIG. 3, It may be an Asynchronous JavaScript and XML (Ajax) application running on the operating system. To this end, the life-time application has a function of transmitting position information to a marine communication server and a function of receiving safety information from a marine communication server.

Asynchronous JavaScript and XML (Ajax), on the other hand, is used for the creation of interactive web applications, with HTML (or XHTML) for presentation information, DOM for CSS, dynamic display and interaction with display information, Web development techniques that use a combination of XML, XSLT, XMLHttpRequest, etc. to exchange and manipulate data asynchronously with a Web server.

Ajax applications use a web browser that supports the techniques listed above as a platform for execution. Browsers that support this include Mozilla Firefox, Internet Explorer, Opera, Safari, and Google Chrome. Opera, however, does not currently support XSL formatting objects and XSLT transformations.

The existing web application populates the form in the browser and submits it to the web server. In response to the request, the web server processes the data according to the requested contents and creates a new web page and returns it as a response. At this time, the page that originally had the form and the page that the user filled in the form and returned as the result generally have similar contents. As a result, duplicate HTML code is sent again, wasting a lot of bandwidth. Wasting bandwidth can cause financial loss and make it difficult to create a service that interacts with the user.

On the other hand, an Ajax application can only request data from the web server and then process the data from the client. Generally, a SOAP or XML based Web service protocol is used. On the client side, JavaScript is used to handle the response of the Web server. Because part of the data processing that was entirely processed by the Web server is handled on the client side, the amount of data exchanged between the Web browser and the Web server and the data throughput of the Web server are reduced, thereby improving the responsiveness of the application. In addition, reducing the load on the data processing of the web server occurs for a large number of computers that are requesting, thereby reducing the overall web server throughput.

The signal output unit 113 is an apparatus for outputting an external signal under the control of the control unit 112, and signal output means such as a microphone or a speaker can be applied.

The piezoelectric sensor 115 is a device that closely contacts a part of a user's body to detect a heartbeat.

The pushing means 116 is a device that provides a pushing force so that the piezoelectric sensor 115 closely contacts a part of the user's body.

Here, the pushing means 116 is a leaf spring. In addition, the leaf spring has a bell-shaped cross section protruding from the center, and a piezoelectric sensor 115 is installed at the center of the leaf spring to closely contact a part of the user's body.

A piezoelectric sensor 115 is attached to the lower portion of the leaf spring in close contact with the leaf spring.

The piezoelectric sensor 115 is a conventional sensor that generates a current by a physical external force. When a physical force such as tension or compression is applied to the surface, a charge is generated so that one surface is charged with a positive electrode plate, And a potential difference is generated between both surfaces. The total charge on each surface is proportional to the charge transfer displacement, which is proportional to the applied force, but the charge generated by the pressure change is not retained for a long time and disappears soon, so it is used to measure the transient change.

In addition, an electrical equipment container in which a PCB to which the control unit 112 is mounted may be installed under the piezoelectric sensor 115, and electric parts such as a PCB and a battery are installed in the container.

As a result, the central portion of the leaf spring is pressed against the user's body by the elastic force of the leaf spring. So that the piezoelectric sensor 115 can accurately sense the heartbeat in a part of the user's body.

Actually, in the piezoelectric sensor 115, a current amount according to a heartbeat number, which is a bio-signal generated, is amplified through an amplifier, and a signal about a heart rate is passed through a band-pass filter of a signal amplified by the amplifier, The control unit receives the signal to determine whether the user is dead or alive. If the signal detected by the piezoelectric sensor 115 is filtered and the signal is continuously detected for a predetermined time, it can be determined that the user is alive. It is desirable that such a limiting factor is determined by assuming various human conditions.

The second communication unit 114 is a device for transmitting user status information based on heartbeat to an external device, and wirelessly transmits the signal to the outside and receives a wireless signal from the outside.

The control unit 112 calculates the heartbeat sensed by the piezoelectric sensor 115 and controls the state information of the user to be transmitted to the external device through the second communication unit 114. [

4 is a view of a life preserver system according to another embodiment of the present invention.

As shown in FIG. 4, the life-saving system according to another embodiment of the present invention continuously informs the current position in the sea, informs an alarm when moving to a dangerous area, 1 includes a wearable life preserver 10, a maritime communication server 20, and an emergency rescue server 30, which are described in the description of Figs. 1 to 3.

As described above, the wearable life preserver 10 is connected to an external device by execution of a life-like application. The wearable life preserver 10 transmits current position information to the external device at preset intervals. And outputs the alarm signal to the outside.

The maritime communication server 20 receives current position information from the wearable life preserver 10 and determines whether or not the user of the wearable life preserver 10 is at risk based on the received current position information. To the wearable life preserver 10, an alarm signal for occurrence of an adjacent or weather event.

In addition, the maritime communication server 20 propagates an emergency rescue request to the emergency rescue server 30 (for example, a nearby police station, a nearby vessel, a marine reconnaissance vessel, etc.).

To this end, the maritime communication server 20 includes an internal communication unit for controlling communication between a marine satellite communication unit, which is not shown, for communicating with a land communication server through satellite communication, a terminal in the ship on which the server is installed, A satellite communication control unit for controlling communication, and a neighboring server communication unit for communication with a nearby ship. In this case, although communication between users in a plurality of ships located in the sea is possible through satellite communication and land communication server in this embodiment, there is a disadvantage in that satellite communication must be used in this case. Therefore, Communication can be freely carried out without extra charge.

More specifically, the maritime communication server 20 receives the current position information from the wearable life preserver 10 connected by execution of the life expectancy application, and based on the received current position information, The wearable life preserver 10 transmits an alarm signal for a dangerous area adjacent to the dangerous area or an occurrence of a weather event when a weather event occurs at the corresponding location. At this time, when the current location information is not received from the wearable life preserver 10 for a preset reference time, the ocean communication server 20 generates a distress signal for the user and transmits the distress signal to the external (i.e., Emergency rescue server).

As another example, the maritime communication server 20 receives current position information from the wearable life preserver 10 connected by execution of a life-like application, and based on the received current position information, The wearable life preserver 10 transmits an alarm signal for occurrence of a dangerous area neighboring or a weather event when the wearer enters the predetermined radius of the area or a weather event occurs at the corresponding location. At this time, when the current location information is not received from the wearable life preserver 10 for a preset reference time, or when the user is determined to be in an emergency state based on the user's state information, (I.e., an emergency rescue server connected to the maritime communication server and the wired / wireless communication network).

The wearable life preserver according to an embodiment of the present invention configured as described above and the life preserver system using the wearable life preserver continuously informs the current position information at sea, provides an alarm when moving to a dangerous area, The structural procedure can be smoothly carried out.

Generally, in a battery such as a lithium ion battery or a lithium polymer battery, when the charge seed rate is increased so that the charging time is shortened, lithium ions are precipitated on the surface of the negative electrode active material (lithium plating) It is known to be shortened rapidly. Therefore, the present invention explains a configuration / method capable of suppressing the battery deterioration phenomenon and the shortening of life span while reducing the charging time (rapid charging) of the battery provided in the wearable life inspecting apparatus.

5 is a block diagram showing a configuration for rapid / slow charging of a wearable life preserver according to various embodiments of the present invention.

5, a wearable life preserver according to various embodiments of the present invention includes a thermoelectric element 125, a current regulator 126, a charge mode selector 127, a charge controller 128, Memory) 129, as shown in FIG.

The thermoelectric element 125 is installed on the surface of the battery 124 and serves to increase or decrease the temperature of the battery 124 according to the ambient temperature according to the control of the charge controller 128. Since one surface of the thermoelectric element 125 is a heat generating surface and the other surface of the thermoelectric element 125 can be a heat absorbing surface, the thermoelectric element 125 can operate simply as a heating element or as a heat absorbing element can do.

The current regulating unit 126 is provided between the DC-DC converter 123 and the battery 124 and controls the seed-rate supplied to the battery 124 under the control of the charge control unit 128 . The current regulator 126 may be implemented by an IGBT (insulated gate bipolar mode transistor) controlled by a PWM (pulse width modulation), a field effect transistor (FET), a bipolar transistor, or the like.

The charging mode selection unit 127 serves to select a rapid charging mode (for example, a 30-minute rapid charging mode) or a continuous charging mode (for example, a 3-hour sustained charging mode) by the user. The charging mode selection unit 127 basically selects the slow charging mode and transfers it to the control unit 128, for example, although it is not limited thereto. In addition, the charging mode selection unit 127 may be implemented by a key or a button structure.

The charge control unit 128 loads the temperature and / or the rate of the battery 124 per charge time and / or charge capacity corresponding to the charge mode selected by the user, Controls the temperature and / or the C-rate and charges the battery 124. Of course, the charge controller 128 controls the thermoelectric element 125 and the current controller 126 directly.

The storage unit 129 stores the operation algorithm (program or software) of the charge control unit 128 and the temperature and / or the rate of the charge of the battery 124 per charge time and / or charge capacity according to the charge mode do. The temperature and / or the seed-rate profile of this battery 124 is stored in advance in accordance with a number of experiments or simulations in the manufacture of the battery 124.

In this way, when the rapid charge mode is selected by the user, the charge control unit 128 controls the temperature of the battery 124 to gradually decrease from the highest value to the lowest value, The battery 125 and the current regulator 126 are directly controlled, thereby shortening the charging time and minimizing the deterioration of the battery 124 or shortening the service life.

For example, although not limiting, the charge controller 128 may control the current regulator 126 to gradually decrease the seed-rate in a step-like fashion, especially at points where the levels are different and / At least one charge dwell time may be provided to further shorten the charge time. That is, the internal resistance of the battery 124 is reduced and stabilized when the charging current is supplied discontinuously and the amount of charging current is reduced, rather than continuously supplying the charging current, so that the charging speed is faster and the deterioration phenomenon is smaller .

For example, although not limiting, the charge controller 128 controls the current regulator 126 to gradually decrease the seed-rate from approximately 5 C to 1 C in a step-like fashion, wherein the temperature is controlled by controlling the thermoelectric element 125 It can be gradually reduced from 50 to 10. Here, these numerical values are only examples for understanding the present invention, and the present invention is not limited to these numerical ranges.

Alternatively, although not limiting, the charge control unit 128 maintains the temperature of the battery 124 at about 20 to 30 DEG C by using the thermoelectric element 125 when the user selects the slow charge mode, Also, the current regulator 126 can be controlled to maintain the seed-rate at about 0.1C to 0.5C. That is, although the charging time is prolonged in this temperature range and the seed-rate, the deterioration rate of the battery and the shortening of the lifetime are minimized.

In addition, although not shown in the drawing, a temperature sensor for sensing the temperature of the battery 124 of the wearable life-saving apparatus according to the embodiment of the present invention, a voltage sensor for estimating the capacity of the battery 124, and / .

6 is a flowchart showing a fast / slow charging sequence during operation of the wearable life preserver according to various embodiments of the present invention.

6, it is determined whether the rapid / slow charging method is a rapid charging mode (S1), a rapid charging temperature and a seed-file loading step (S2), a step S3 A temperature for slow charging and a loading step for a seed rate profile S4, a step S5 for confirming whether the charging is complete, and a charging stop step S6.

In step S1 to determine whether the rapid charge mode is selected, the charge controller 128 determines whether the rapid charge mode has been selected by the user through the charge mode selector 127. [ If the rapid charge mode is selected, step S2 is performed, otherwise step S3 is performed.

In the rapid charge temperature and seed-rate profile loading step S2, the charge control unit 128 loads the rapid charge temperature and the seed-rate profile per charge time and / or the charge amount stored in the storage unit 129. [

For example, but not limited to, the charge controller 128 may control the thermoelectric element 125 to maintain the temperature of the battery 124 at approximately 30 to 50 regardless of the ambient temperature at the beginning of the charge, As the elapsed or charged capacity increases, the thermoelectric element 125 is controlled to load a profile that maintains the temperature of the battery 124 at about 20 to 30. Further, the charge control unit 128 controls the current regulating unit 126 so that a current is supplied to the battery 124 in the form of a pulse having a charge rate of about 3 C to 5 C and a charge stop time, And controls the current regulating unit 126 as the charging time elapses or the charging capacity increases so that the current is supplied to the battery (not shown) in the form of a pulse having a charge rate of 1 C to 2 C and a charge stop time, Lt; RTI ID = 0.0 > 124 < / RTI >

On the other hand, in step S3 in which it is determined whether the mode is the slow charge mode, the charge control unit 128 determines whether the user has selected the slow charge mode through the charge mode selection unit 127. [ When the slow charge mode is selected, step S4 is performed.

The charging control unit 128 loads the slowly charging temperature and the seed-rate profile per charging time and / or the charging capacity stored in the storage unit 129 in the slow charging temperature and seed-rate profile loading step S4.

For example, but not limited to, the charge control unit 128 controls the thermoelectric element 125 to maintain the temperature of the battery 124 at about 20 to 30 DEG C regardless of the ambient temperature, ) To load a charge profile that maintains the seed-rate at approximately 0.1C to 0.5C.

In step S5 of confirming whether the battery is fully charged, the charge control unit 128 determines whether or not the present charge amount of the battery 124 is in the full charge state. The determination as to whether or not the battery 124 is fully charged can be performed by converting the voltage of the battery 124 into an SOC (State of Charge) or by measuring the total amount of charge injected into the battery 124. The method for determining whether or not the battery 124 is fully charged is well known to those skilled in the art, so a description thereof will be omitted.

If it is confirmed that the battery 124 is fully charged, step S6 is performed, and otherwise, the process returns to step S1.

In the charging stop step S6, the charging control unit 128 controls the current regulating unit 126 to block the current to the battery 124 so that the charging of the battery 124 is completed.

As described above, in the embodiment of the present invention, by supplying the pulse charging current relatively higher than the temperature of the battery 124 relatively high in the region where the capacity of the battery 124 is low, there is no precipitation of lithium ions, So that the battery 124 can be charged quickly. If the battery 124 is charged with a relatively high pulse charge current under the condition that the temperature of the battery 124 is approximately 0 or less, the above-described lithium ion precipitation and electrolytic solution decomposition may occur, The life span is shortened. However, as in the present invention, when the temperature of the battery is increased and the battery is charged at a high rate during the initial charging of the battery regardless of the ambient temperature, and the battery temperature is lowered and the battery is charged at the time of terminal charging at the end of the battery, It is possible to reduce deterioration and life shortening.

Meanwhile, the life-span module 11 may be made of a metal material. The life-span module 11 of the metal material may be coated with a corrosion-resistant coating layer made of a coating composition for improving corrosion resistance and stain resistance.

This coating composition was prepared by mixing 100 parts by weight of a water-soluble resin composition prepared by mixing 80% by weight of resorcinol diglycidyl ether and 20% by weight of propanol amine, And 1 to 10 parts by weight of hexamethylated-hexamethylol melamine.

In the present invention, the use of resorcinol diglycidyl ether in a more environmentally friendly life-time module (11) is achieved by utilizing characteristics such as excellent chemical resistance, dimensional stability, properties such as corrosion resistance of propanolamine and excellent lubrication characteristics of melamine derivatives. A coating for preventing corrosion can be formed.

It is preferable that the method of applying such a coating composition for corrosion prevention is applied so that the dry film thickness of the surface layer of the life preserver 11 is 10 to 30 占 퐉.

If the dry film thickness is less than 10 mu m, the service life can be shortened. If the dry film thickness is more than 30 mu m, there is no problem in function, but the economic advantage is reduced.

In addition, the life preserver module 11 coated with the coating composition for preventing non-woven is air-dried for 10 to 30 minutes and then cured at 100 to 200 ° C, preferably at 150 to 180 ° C for 10 to 50 minutes, It is possible to obtain a coated film.

Further, since the frame module 12 is coated with a fragrance material having a function such as a treatment for respiratory diseases, the frame module 12 is effective for restoring fatigue and improving health of the user.

The functional oil may be mixed with 95 to 97% by weight of a perfume, 3 to 5% by weight of a functional oil, 50% by weight of Helichrysum oil, , And 50% by weight of Patchouli oil.

Here, the functional oil is preferably mixed with 3 to 5% by weight based on the perfume. If the mixing ratio of the functional oil is less than 3% by weight, the effect is insignificant. If the mixing ratio of the functional oil exceeds 3 to 5% by weight, the function is not greatly improved, but the manufacturing cost is greatly increased.

Among the functional oils, helichrysum oil is one of the main chemical elements such as nerol, geraniol, linalol, and has a good effect on antibacterial, antibacterial, antiseptic, antiallergic and anti-inflammatory.

 Patchouli oil oil is mainly composed of patchouliene, eugenol, carvone, etc. It has excellent effect on sterilization, preservation, anti-inflammation and skin inflammation treatment.

As the functional oil is coated on the frame module 12, it contributes to restoration of the user's fatigue and health improvement.

In addition, on the surface of the piezoelectric sensor 115, an anti-fouling layer coated with the composition for anti-fouling coating is formed so as to effectively prevent and remove the adhesion of the fouling substance. The antifouling coating composition 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 wt% with respect to the total aqueous solution. In addition, sodium carbonate or calcium carbonate may be used as the material for improving the coating property of the anti-fouling 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 base material is lowered or the moisture adsorption on the surface is increased.

The boric acid and sodium carbonate are preferably used in an amount of 1 to 10% by weight in the aqueous solution of the composition. If less than 1% by weight, the coating property of the base material is deteriorated. If the amount is more than 10% by weight, It is easy to occur.

On the other hand, as a method of applying the present anti-fouling coating composition onto a substrate, it is preferable to coat it by a spray method. The thickness of the final coated film on the substrate is preferably 500 to 2000 angstroms, and more preferably 1000 to 2000 angstroms. 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 is more than 2000 ANGSTROM, crystallization of a coated surface tends to occur.

The present anti-contamination coating composition 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 stirring.

As described above, the wearable life preserver of the present invention and the life preserver system using the wearable life preserver according to the present invention are only one embodiment, and the present invention is not limited to the above embodiments, 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: wearable life preserver 11: frame module
12: Lifeboat module 20: Marine communication server
30: emergency rescue server 111: first communication section
112: control unit 113: signal output unit
114: second communication unit 115: piezoelectric sensor
116: pushing means

Claims (7)

A wearable frame module that can be worn on a part of a user's body; and a life module provided on the frame module,
The life-
A first communication unit connected directly to at least one external device to transmit and receive a position information signal or an alarm signal; And
A life-threatening application is installed, connected to the external device by execution of the life-like application, transmits current position information at predetermined intervals to the external device, and receives, from the external device, And a control unit for receiving the alarm signal and outputting it to the outside,
The life-like application is an Asynchronous JavaScript and XML (Ajax) application,
Wherein the life preserver module comprises: a signal output unit for outputting the alarm signal under the control of the control unit;
A piezoelectric sensor for sensing a heartbeat in close contact with a part of the user's body;
And a plate spring (having a bell-shaped cross section protruding from the center, with a piezoelectric sensor installed at its center portion and a piezoelectric sensor closely attached to its lower portion) for providing a pushing force to bring the piezoelectric sensor into close contact with a part of the user's body ; And
And a second communication unit for transmitting status information of a user based on the heartbeat to an external device,
The controller calculates the heartbeat sensed by the piezoelectric sensor and controls the state information of the user to be transmitted to the external device through the second communication unit,
In the lower part of the piezoelectric sensor, there is provided an electrical equipment container in which a PCB to which a control unit is mounted is installed. In the container, electrical parts of the PCB and the battery are installed. However, A thermoelectric element provided on a surface of the battery for increasing or decreasing the temperature of the battery according to the ambient temperature according to the control of the charge controller; A current regulator installed between the DC-DC converter and the battery for regulating a seed-rate supplied to the battery in accordance with the charge controller; A charging mode selection unit selecting a rapid charging mode or a full charging mode by a user; A charge controller for loading a temperature or a rate of charge of the battery per charging time or charging capacity corresponding to the charging mode selected by the user and controlling the temperature or the rate of the battery according to the profile to charge the battery; A storage unit for storing the operation algorithm of the charge control unit and the temperature or the rate of charge of the battery per charging time or charging capacity according to the charging mode,
In the piezoelectric sensor, a current amount according to a heartbeat number, which is a bio-signal generated, is amplified through an amplifier, and a signal for a heart rate is passed through a band-pass filter of a signal amplified by an amplifier. If the signal detected by the piezoelectric sensor is filtered and the signal is continuously detected for a predetermined time, the controller determines that the user is alive,
The life preserver module is made of a metal material. The life preserver module of the metal material is coated with an anti-corrosive coating layer made of a coating composition for improving corrosion resistance and stain resistance. Resorcinol diglycidyl ether (Resorcinol diglycidyl ether ) Is composed of 1 to 10 parts by weight of hexamethylated-hexamethylol melamine relative to 100 parts by weight of a water-soluble resin composition prepared by mixing 80% by weight of propylene glycol and 20% by weight of propanol amine And,
The frame module is coated with a perfume material, and the perfume material may be mixed with functional oils. The perfume composition is mixed with 95 to 97% by weight of a perfume, 3 to 5% by weight of a functional oil, 50 wt.% Of island oil (Helichrysum oil), and 50 wt.% Of patch oil (Patchouli oil). delete delete delete delete A wearable life preserver as set forth in claim 1; And
The wearable life preserver is connected to the wearable life preserver by the execution of the life preserver application, and based on the received current position information, the user enters within a predetermined radius of a predetermined dangerous area, or a weather event And a maritime communication server that transmits an alarm signal for occurrence of a weather event or a dangerous area neighboring to the wearable life expectancy device when it occurs,
When the current location information is not received from the wearable life preserver for a preset reference time or when the user is determined to be in an emergency based on the state information of the user, the navigation communication server generates a distress signal for the user, Respectively,
Further comprising an emergency rescue server connected to the maritime communication server through a wired / wireless communication network,
And the maritime communication server transmits a distress signal for the generated user to the emergency rescue server. delete

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