KR102528439B1 - Server, system, method and program for providing a ring size recommendation service using a ring including a size adjustment structure - Google Patents

Abstract

According to an embodiment of the present invention, a system for providing a ring size recommendation service is disclosed. The system, a ring; and a service providing server configured to communicate with the ring. The ring is formed in an annular shape and a body portion having a mounting groove recessed on an inner surface thereof; and a size adjustment unit inserted into the mounting groove. The size adjusting unit may include an adjustment unit housing inserted into the mounting groove and having a first inner space and a second inner space opened toward the inside of the body part; an expansion part disposed in the first inner space, accommodating a material vaporizing under a preset vaporization condition in the inner space, and formed of an elastic material; a pressing part disposed in the first inner space and disposed in an inward direction of the body part relative to the expansion part; a thermoelectric element disposed in the first inner space and disposed outwardly of the body part relative to the expansion part; a temperature sensor disposed to cover the open portion of the second inner space; a controller disposed in the second inner space; a battery disposed in the second inner space; a pressure sensor disposed between the pressing part and the expanding part; and a flexible PCB disposed across the first inner space and the second inner space and electrically connecting the temperature sensor, the controller, the battery, the pressure sensor, and the thermoelectric element.

Description

Server, system, method and program for providing a ring size recommendation service using a ring containing a size adjustment structure

The present invention relates to a server, system, method, and program for providing a ring size recommendation service using a ring including a size adjustment structure.

Unless otherwise indicated herein, material described in this section is not prior art to the claims in this application, and inclusion in this section is not an admission that it is prior art.

Generally, rings are manufactured to fit the wearer's finger size. Since the inner diameter of the ring is fixed, users with swollen fingers feel uncomfortable wearing it as the size of the finger changes.

There is a problem that users who have relatively large variability in finger size feel uncomfortable because they cannot select a ring of an appropriate size.

Accordingly, a need for a technology capable of recommending an appropriate ring size to a user is emerging.

Registered Patent Publication No. 10-2154953 (2020.09.04.) Publication No. 10-2019-0002344 (2019.01.08.)

The present invention is to provide a server, system, method, and program for providing a ring size recommendation service using a ring including a size adjustment structure, which can recommend an appropriate ring size to users with large variability in finger size. The purpose.

One aspect of the present invention for achieving the above object provides a system for providing a ring size recommendation service.

The system, a ring; and a service providing server configured to communicate with the ring, wherein the ring is formed in an annular shape and includes a body portion having a mounting groove recessed on an inner surface thereof; and a size adjustment unit inserted into the mounting groove.

The size adjusting unit may include an adjustment unit housing inserted into the mounting groove and having a first inner space and a second inner space opened toward the inside of the body part; an expansion part disposed in the first inner space, accommodating a material vaporizing under a preset vaporization condition in the inner space, and formed of an elastic material; a pressing part disposed in the first inner space and disposed in an inward direction of the body part relative to the expansion part; a thermoelectric element disposed in the first inner space and disposed outwardly of the body part relative to the expansion part; a temperature sensor disposed to cover the open portion of the second inner space; a controller disposed in the second inner space; a battery disposed in the second inner space; a pressure sensor disposed between the pressing part and the expanding part; and a flexible PCB disposed across the first inner space and the second inner space and electrically connecting the temperature sensor, the controller, the battery, the pressure sensor, and the thermoelectric element.

In addition, the controller gradually increases the output of power input from the battery to the thermoelectric element when the temperature detected by the temperature sensor is greater than a preset reference temperature, and the measured pressure is the pressure detected by the pressure sensor. When the preset limit pressure is reached, the output temperature corresponding to the output of power input to the thermoelectric element and the time when the measured pressure reaches the limit pressure are matched and transmitted to the service providing server, and the measurement When the pressure is greater than the limit pressure, the output of power input to the thermoelectric element from the battery is gradually reduced, and when the measured pressure, which is the pressure sensed by the pressure sensor, reaches the preset limit pressure, the thermoelectric element The output temperature corresponding to the output of the input power and the time when the measured pressure reaches the limit pressure are matched and transmitted to the service providing server, and when the measured pressure is smaller than the limit pressure, the battery When the output of power input to the thermoelectric element is gradually increased, and the measured pressure, which is the pressure detected by the pressure sensor, reaches a preset limit pressure, an output temperature corresponding to the output of the power input to the thermoelectric element, and The time when the measured pressure reaches the limit pressure is matched and transmitted to the service providing server, and when the temperature detected by the temperature sensor is smaller than a preset reference temperature, power input from the battery to the thermoelectric element is supplied. and provides an output temperature and time when the wearing release signal is generated to the service providing server.

In addition, the service providing server generates a finger size graph using the output temperature and time received from the ring, determines the average size of the user's finger circumference using the finger size graph, and determines the finger size graph and the average size The average size is corrected using , and a recommended size is determined using the corrected average size.

According to an embodiment of the present invention, a size suitable for the user may be recommended by analyzing the dimensional change of the user's finger. Through this, a user with high variability in finger size can be provided with a size that can be worn comfortably.

1 is a conceptual diagram illustrating a system for providing a ring size recommendation service according to an embodiment of the present invention.
2 is a block diagram showing functional modules of the ring and service providing server according to FIG. 1 by way of example.
Figure 3 is a perspective view showing an embodiment of the ring according to Figure 1;
Figure 4 is a view showing the process of operating the size adjustment structure of the ring according to Figure 1 by way of example.
5 is a perspective view showing an embodiment of a pressing unit of the present invention.
6 is a cross-sectional view showing another embodiment of the pressing unit of the present invention.
7 is a flowchart illustrating a process of recording the output temperature of the thermoelectric element by the ring according to FIG. 1;
FIG. 8 is a flowchart illustrating a process in which the service providing server according to FIG. 1 determines a recommendation size.
9 is a diagram showing the hardware configuration of the service providing server according to FIG. 1 by way of example.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

The terms "upper", "lower", "left" and "right" used in the following description will be understood with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram illustrating a system for providing a ring size recommendation service according to an embodiment of the present invention.

Referring to FIG. 1 , a system for providing a ring size recommendation service includes a service providing server 100 and a ring 200 .

2 is a block diagram showing functional modules of the ring 200 and the service providing server 100 according to FIG. 1 by way of example.

Referring to FIG. 2 , the service providing server 100 includes a finger size graph generating unit 101 , an average size determining unit 102 and a recommended size determining unit 103 . The controller 226 of the ring 200 includes a temperature sensing unit 2261, a pressure sensing unit 2262, a thermoelectric element control unit 2263, and an output temperature information transmission unit 2264.

FIG. 3 is a perspective view showing the ring 200 according to FIG. 1 . FIG. 4 is a diagram showing a process in which the ring 200 according to FIG. 1 operates by way of example.

Referring to FIGS. 3 and 4 , the ring 200 includes a body portion 210 and a size adjusting portion 220 . The body portion 210 may be formed in an annular shape, and a mounting groove 210a is recessed on an inner surface of the body portion 210 . In one embodiment, a pair of mounting grooves 210a facing each other may be recessed on the inner surface of the body portion 210 . However, it is not limited thereto, and the number of mounting grooves 210a may be three or more. The mounting groove 210a may be recessed to a predetermined depth in a direction from the inner surface toward the outer surface. In one embodiment, the body portion 210 may be formed of a metal material.

The ring 200 includes a size adjustment unit 220 that is inserted into the mounting groove 210a and can be mounted on the main body 210 . The size adjustment unit 220 is inserted into the mounting groove 210a and coupled to the main body 210 . The size adjusting unit 220 is formed in the same number as the number of mounting grooves 210a. In one embodiment, the mounting groove 210a may be recessed in a size corresponding to that of the size adjustment unit 220 . For example, in a state in which all of the size adjustment parts 220 are inserted into the mounting grooves 210a, the size adjustment parts 220 may not protrude from the inner surface of the body part 210.

The size adjustment unit 220 includes an expansion unit 221 , a pressurization unit 222 and an adjustment unit housing 223 .

The expansion part 221, the pressing part 222, and the adjusting part housing 223 coupled to each other are inserted into the mounting groove 210a.

The adjustment unit housing 223 forms a first inner space and a second inner space, one side of which is opened to the inside of the ring 200 . In addition, the adjustment unit housing 223 is formed so that its outer surface corresponds to the inner surface of the mounting groove 210a. In addition, a housing locking portion 2231 protrudes from a portion of the first inner space opened to the inside of the ring 200 . Accordingly, in the adjusting unit housing 223, the width of the ring 200 in the circumferential direction is formed to be relatively short in the portion where the housing hooking portion 2231 is formed compared to other portions. In addition, the housing locking portion 2231 prevents the pressing portion 222 from completely separating from the adjusting portion housing 223 . In one embodiment, the adjustment unit housing 223 may be formed of various plastic materials having relatively high thermal insulation properties. In one embodiment, the adjustment unit housing 223 may be formed of a known plastic material that is not damaged at a temperature of 50°C.

The expansion unit 221 forms a sealed internal space, and a material that vaporizes at a preset standard temperature of 1 atmospheric pressure is stored in a liquid state in the internal space of the expansion unit 221 . In one embodiment, liquid acetaldehyde may be stored in the internal space of the expansion part 221, and in this case, the reference temperature may be 20.8 °C. In one embodiment, liquid Freon refrigerant R-11 may be stored in the inner space of the expansion part 221, and in this case, the reference temperature may be 23.8°C. However, it is not limited thereto, and the internal space of the expansion part 221 may include various materials that expand at a temperature lower than 40° C. at a pressure of 1 atmosphere.

The expansion part 221 may be formed of an elastic material so that it can expand as the material stored in the internal space is vaporized. In addition, the expansion part 221 may be formed of a material that does not leak the material vaporized in the internal space to the outside.

A controller 226, a battery 227, and a temperature sensor 228 are disposed in the second inner space. In addition, a thermoelectric element 229 is disposed between the bottom surface of the first inner space and the expansion part 221 . In addition, a flexible PCB 225 is disposed across the first inner space and the second inner space.

The controller 226, the battery 227, the temperature sensor 228, and the thermoelectric element 229 are electrically connected by the flexible PCB 225. In one embodiment, various known flexible printed circuit boards may be used as the flexible PCB 225 .

The temperature sensor 228 may be disposed in an open portion of the ring 200 in the second inner space to come into contact with a wearer's finger.

The temperature information detected by the temperature sensor 228 is transmitted to the controller 226, and when the temperature information is equal to or higher than a preset reference temperature, the controller 226 controls the battery 227 to supply power to the thermoelectric element 229. Control.

As the thermoelectric element 229 supplied with power generates thermal energy, a material in a liquid state stored in the inner space of the expansion part 221 may be vaporized. Through this, the pressing portion 222 may protrude to the inside of the ring 200.

A pressure sensor 230 is provided between the pressing part 222 and the expanding part 221 . In one embodiment, the pressure sensor 230 may be attached to the upper surface of the pressing part 222, and the pressure sensor 230, the battery 227 and the controller 226 are provided by the flexible PCB 225. can be electrically connected.

As the expansion part 221 expands, the pressing part 222 protrudes toward the user's finger, and as the finger and the pressing part 222 come into contact, the pressure sensor 230 can detect the generated pressure.

When the temperature information sensed by the temperature sensor 228 is smaller than a preset reference temperature, the controller 226 may control the battery 227 to cut off power supplied to the thermoelectric element 229 .

In one embodiment, the ring 200 may include a storage device capable of storing information.

In one embodiment, the reference temperature may be 20 ℃. However, it is not limited thereto.

As the power-off thermoelectric element 229 does not generate thermal energy, the inside of the expansion unit 221 is cooled, and the gaseous material expanded in the internal space of the expansion unit 221 may be liquefied. Accordingly, the pressing portion 222 protruding to the inside of the ring 200 may be inserted toward the outer side in the radial direction of the ring 200 again.

The pressing part 222 may be formed in a shape corresponding to the first inner space of the adjusting part housing 223 . In one embodiment, the pressing part 222 may be formed in a form in which a pressing part locking part protrudes from one side of the hexahedron toward the circumferential direction of the ring 200. Accordingly, in the process in which the pressing part 222 protrudes due to the expansion of the expansion part 221, the holding protrusion of the pressing part is caught by the housing holding part 2231, and the pressing part 222 is separated from the adjusting part housing 223. can prevent it from happening. The manufacturer tilts the pressing unit 222 to one side and preferentially inserts one pressing unit locking member into the adjusting unit housing 223 to insert the pressing unit 222 into the first inner space.

이상인 금속재질로 형성될 수 있다. 일 실시 예에서, 가압부(222)는 상대적으로 높은 단열성을 갖는 다양한 플라스틱 소재로 형성될 수 있다. 일 실시 예에서, 가압부(222)는, 50℃의 온도에서 손상되지 않는 공지된 플라스틱 소재로 형성될 수 있다. In one embodiment, the pressing portion 222 may be formed of a material having a relatively higher thermal conductivity than the body portion 210 . For example, the pressing part 222 may be formed of silver (Ag), copper (Cu), or the like. Through this, heat may be more effectively transferred from the wearer's finger toward the expansion part 221 . In one embodiment, the pressing unit 222 has a thermal conductivity of 300

It can be formed of more than one metal material. In one embodiment, the pressing part 222 may be formed of various plastic materials having relatively high thermal insulation properties. In one embodiment, the pressing part 222 may be formed of a known plastic material that is not damaged at a temperature of 50°C.

As the pressing portion 222 protrudes to the inside of the body portion 210 and presses the wearer's finger, the ring 200 may be stably fixed to the wearer's finger.

Since the expansion part 221 is directly heated using the thermoelectric element 229, a material that vaporizes at a relatively high temperature can be put into the expansion part 221 and used.

5 is a perspective view showing an embodiment of a pressing unit 222 of the present invention.

Referring to FIG. 5 , the pressing portion 222 may be formed in a shape in which a pressing portion holding protrusion protrudes from an outer surface of the hexahedron toward the circumferential direction of the ring 200 .

6 is a cross-sectional view showing another embodiment of the pressing part 222 of the present invention.

Referring to FIG. 6, a groove is formed in the pressing portion 222 toward the circumferential direction of the ring 200, into which the pressing portion locking portion 2221 can be inserted, and a gap between the pressing portion locking portion 2221 and the groove is formed. An elastic member 2222 directly connects them. Through this, the pressing part 222 can be inserted into the coupling groove 210a in a state where the pressing part holding protrusion 2221 is pushed into the groove.

FIG. 7 is a flowchart illustrating a process of recording the output temperature of the thermoelectric element 229 by the ring 200 according to FIG. 1 .

First, when the user wears the ring 200, the controller 226 detects the wearing of the ring 200 (S110). The temperature sensor 2261 determines whether the temperature detected by the temperature sensor 228 is greater than a preset reference temperature, and if the temperature detected by the temperature sensor 228 is greater than the preset reference temperature, the user rings ( 200) is judged to be worn.

When the user wears the ring 200, the controller 226 gradually increases the output of power input from the battery 227 to the thermoelectric element 229 (S120). The thermoelectric element controller 2263 gradually increases the output of power input from the battery 227 to the thermoelectric element 229 .

As the output of power input to the thermoelectric element 229 gradually increases, the expansion part 221 expands, and as the expansion part 221 expands, the pressing part 222 protrudes toward the user's finger. As the finger contacts the pressing part 222, the pressure sensed by the pressure sensor 230 increases.

The pressure sensor 2262 determines whether the measured pressure, which is the pressure sensed by the pressure sensor 230, reaches a preset limit pressure (S130).

When the measured pressure does not reach the limit pressure, the pressure sensor 2262 continuously compares the measured pressure with the limit pressure until the measured pressure reaches the limit pressure.

When the measured pressure reaches the limit pressure, the output temperature information transmission unit 2264 matches the output temperature corresponding to the output of power input to the thermoelectric element 229 and the time when the measured pressure reaches the limit pressure It is transmitted to the service providing server 100. Power output and output temperature are matched in advance and stored.

In addition, the thermoelectric element control unit 2263 supplies power from the battery 227 to the thermoelectric element 229 as an output when the measured pressure reaches the limit pressure (S150).

As time passes after the user wears the ring 200, the circumference of the user's finger may fluctuate. As the size of the circumference of the finger fluctuates, the measured pressure may become larger or smaller than the limit pressure. For example, when a finger swells and the finger circumference increases, the measured pressure may increase above the limit pressure, and when the finger swelling disappears and the finger circumference decreases, the measured pressure decreases below the limit pressure. can do.

The pressure sensor 2262 continuously compares the measured pressure with the limit pressure even after the measured pressure reaches the limit pressure (S160). When the measured pressure is greater than the threshold pressure, the thermoelectric element controller 2263 gradually reduces the output of power input from the battery 227 to the thermoelectric element 229 (S170).

The pressure sensor 2262 determines whether the measured pressure, which is the pressure sensed by the pressure sensor 230, reaches a preset limit pressure (S130).

When the measured pressure does not reach the limit pressure, the pressure sensor 2262 continuously compares the measured pressure with the limit pressure until the measured pressure reaches the limit pressure.

When the measured pressure reaches the limit pressure, the output temperature information transmission unit 2264 matches the output temperature corresponding to the output of power input to the thermoelectric element 229 and the time when the measured pressure reaches the limit pressure It is transmitted to the service providing server 100. Power output and output temperature are matched in advance and stored.

In addition, the thermoelectric element control unit 2263 supplies power from the battery 227 to the thermoelectric element 229 as an output when the measured pressure reaches the limit pressure (S150).

That is, the controller 226 performs the process from step S130 to step S150 again.

For example, the first output temperature and time are 37 ° C. and 4 minutes, and the output temperature and time when the measured pressure reaches the limit pressure again after the measured pressure exceeds the limit pressure may be 34 ° C. and 20 minutes.

The pressure sensor 2262 continuously compares the measured pressure with the limit pressure even after the measured pressure reaches the limit pressure (S180). When the measured pressure is less than the limit pressure, the controller 226 gradually increases the output of power input from the battery 227 to the thermoelectric element 229 (S120). The thermoelectric element controller 2263 gradually increases the output of power input from the battery 227 to the thermoelectric element 229 .

As the output of power input to the thermoelectric element 229 gradually increases, the expansion part 221 expands more, and the measured pressure smaller than the limit pressure gradually increases.

The pressure sensor 2262 determines whether the measured pressure, which is the pressure sensed by the pressure sensor 230, reaches a preset limit pressure (S130).

When the measured pressure does not reach the limit pressure, the pressure sensor 2262 continuously compares the measured pressure with the limit pressure until the measured pressure reaches the limit pressure.

When the measured pressure reaches the limit pressure, the output temperature information transmission unit 2264 matches the output temperature corresponding to the output of power input to the thermoelectric element 229 and the time when the measured pressure reaches the limit pressure It is transmitted to the service providing server 100. Power output and output temperature are matched in advance and stored.

In addition, the thermoelectric element control unit 2263 supplies power from the battery 227 to the thermoelectric element 229 as an output when the measured pressure reaches the limit pressure (S150).

That is, the controller 226 performs the process from step S120 to step S150 again.

For example, the first output temperature and time may be 37° C. and 0 minutes, and the output temperature and time when the measured pressure reaches the limit pressure again after the measured pressure exceeds the limit pressure may be 34° C. and 20 minutes. In addition, after the measured pressure is smaller than the limit pressure, the output temperature and time when the measured pressure reaches the limit pressure again may be 40 ° C. and 200 minutes.

When the measured pressure and the limit pressure remain the same, the controller 226 determines whether the temperature detected by the temperature sensor 228 is smaller than a preset reference temperature (S190). The temperature sensor 2261 determines that the user has released the ring 200 when the temperature detected by the temperature sensor 228 is lower than a preset reference temperature. When the temperature detected by the temperature sensor 228 is lower than the preset reference temperature, the temperature sensor 2261 provides the service providing server 100 with a wearing release signal and an output temperature and time at the time of the wearing release signal. do.

If the wear release is not detected, the controller 226 continuously determines whether the measured pressure is smaller or larger than the limit pressure.

Through this, output temperature records from when the user wears the ring 200 to when the ring 200 is released can be transmitted to the service providing server 100 .

FIG. 8 is a flowchart illustrating a process of determining a recommended size by the service providing server 100 according to FIG. 1 .

First, the service providing server 100 determines the average size of the wearer's finger circumference using the output temperature of the thermoelectric element for each time period (S210).

The finger size graph generation unit 101 of the service providing server 100 generates a finger size graph using the output temperature and time of the thermoelectric element provided from the ring 200 . In an embodiment, the finger size graph refers to a graph composed of coordinates having a thermoelectric element output temperature as a y-axis coordinate value and a time matching the thermoelectric element output temperature as an x-axis coordinate value. In an embodiment, the x-axis coordinate value is composed of minutes between the time when the user wears the ring and the output temperature of the thermoelectric element is recorded for the first time and the time when the user takes off the ring. For example, if the time at which the output temperature of the thermoelectric element is first recorded is 8:10 am and the time at which the user takes off the ring is 10 pm, people between 0 and 830 minutes may correspond to the x-coordinate value. The finger size graph generation unit 101 generates coordinates between consecutive times provided from the ring 200 when the matched time and the output temperature of the electric element continuously provided are not consecutive. When the time matching the output temperature of the first thermoelectric element provided first is referred to as the first time, and the time matching the output temperature of the second thermoelectric element provided later is referred to as the second time, the finger size graph generating unit 101 , y coordinate values matching the x coordinate values between the first time and the second time may be determined as the output temperature of the first thermoelectric element. For example, when (34°C, 0 minutes) and (37°C, 10 minutes) are received consecutively from the ring 200, the finger size graph generating unit 101 generates 9 coordinates between 0 minutes and 10 minutes. (34℃, 1 min), (34℃, 2 min), (34℃, 3 min), (34℃, 4 min), (34℃, 5 min), (34℃, 6 min), (34 ℃, 7 minutes), (34 ℃, 8 minutes), (34 ℃, 9 minutes) can be determined.

The finger size graph generating unit 101 converts the y coordinate value from the output temperature of the thermoelectric element to a size. The size and output temperature of the ring 200 and the size of the finger are pre-matched and stored in the database, and the finger size graph generating unit 101 stores the size and output temperature of the ring 200 that provided the output temperature of the thermoelectric element. It can be determined as a new y-coordinate value by searching for the dimension of the finger that matches . For example, if the ring 200 providing the information is No. 3, the provided thermoelectric element output temperature is 30 ° C, and the dimension matched with No. 3 and 30 ° C is 45 mm, the finger size graph generating unit 101 , change the y-coordinate value from 30°C to 45 mm.

The finger size graph generation unit 101 creates a finger size graph by connecting a plurality of modified coordinates.

The average size determination unit 102 determines the average size of the user's finger circumference using the finger size graph.

The average size of the finger circumference is determined using Equation 1 below.

In Equation 1, Lavr means the average size, a means the start time input by the user, b means the end time input by the user, and f(x) is the finger size graph. It means the y-coordinate value for the x-coordinate value in .

In one embodiment, the service providing server 100 may provide a finger size graph to a user and receive a start time and an end time indicating a range to calculate an average size from the user. For example, the service providing server 100 may display a finger size graph through an output interface device and receive start and end times from a user through an input display device. In one embodiment, the service providing server 100 may provide a finger size graph to a user terminal (not shown) of the user and receive start time and end time from the user terminal (not shown). The service providing server 100 may provide a user terminal (not shown) with a user interface capable of displaying a finger size graph and inputting a start time and an end time. For example, when the range of the x-coordinate value of the finger size graph is 0 to 830 minutes, the start time may be 130 minutes and the end time may be 700 minutes. Through this, it is possible to select a time range in which the user mainly wears a ring and calculate an average size of the user's finger during the selected time range.

Examples of user terminals (not shown) include a communicable desktop computer, a laptop computer, a notebook, a smart phone, a tablet PC, and a mobile phone. phone), smart watch, smart glass, e-book reader, portable multimedia player (PMP), portable game device, navigation device, digital camera, digital multimedia broadcasting (DMB) ) player, digital audio recorder, digital audio player, digital video recorder, digital video player, personal digital assistant (PDA), and the like.

In addition, the service providing server 100 corrects the average size (S220).

The average size determining unit 102 of the service providing server 100 corrects the determined average size.

Example 1 of correcting the average size is as follows.

In Example 1, the average dimension correction is determined by Equation 2 below.

은, a이상 b이하의 x 좌표값 범위에서 y 좌표값의 최대값을 의미하고,

은, a이상 b이하의 x 좌표값 범위에서 y 좌표값의 최소값을 의미하며, K1은 미리 설정된 기준오차값을 의미한다. In Equation 2 above, L means the corrected average size, Lavr means the initially determined average size, a means the start time input by the user, and b means the end time input by the user. means,

Means the maximum value of the y-coordinate value in the range of x-coordinate values from a to b,

Means the minimum value of the y-coordinate value in the range of x-coordinate values from a to b, and K1 means a preset reference error value.

Example 2 of correcting the average size is as follows.

First, the average size determiner 102 calculates the variance of the finger size using Equation 3 below.

In Equation 3 above, V means variance, Lavr means average size, a means the start time input by the user, b means the end time input by the user, and f ( x) means the y coordinate value for the x coordinate value in the finger size graph.

The average size determining unit 102 does not correct the average size when the determined variance is less than or equal to a preset reference variance.

The average size determining unit 102 corrects the average size using Equation 4 below when the determined variance is greater than the preset reference variance.

In Equation 4 above, L means the corrected average dimension, Lavr means the initially determined average dimension, and n is the y-coordinate value greater than Lavr among the y-coordinate values in the range of x-coordinate values from a to b and below It means the number, m means the number of y-coordinate values smaller than Lavr among the y-coordinate values in the range of x-coordinate values between a and b, and f(x _i ) is the number of y-coordinate values greater than Lavr in the finger size graph. Means the y-coordinate value for the i-th x-coordinate value, f(x _j ) means the y-coordinate value for the j-th x-coordinate value in which the y-coordinate value is smaller than Lavr in the finger size graph, and K2 is the preset standard It means the variance error value.

In addition, the service providing server 100 determines a recommended size using the corrected average size (S230).

Each of a plurality of size ranges and each of a plurality of sizes are pre-matched and stored in the database of the service providing server 100 .

The recommended size determination unit 103 determines, as the recommended size, a size that matches the size range to which the corrected average size in the database belongs.

In another embodiment, the recommended size determining unit 103 may determine the recommended size using a finger size graph.

,

,

,

각각을 차원값으로 갖는 다차원 벡터인 사이즈결정벡터를 생성하고, 사이즈결정벡터를 미리 학습된 인공신경망에 입력 값으로 입력하며, 인공신경망으로부터 추천 사이즈를 획득할 수 있다. The recommended size determining unit 103 is L _avr ,

,

,

,

A sizing vector, which is a multi-dimensional vector having each dimension value, is generated, the sizing vector is input as an input value to a pre-learned artificial neural network, and a recommended size can be obtained from the artificial neural network.

,

,

,

에 사이즈를 라벨링하여 생성된 학습데이터를 이용한 기계학습을 통해 생성될 수 있다. 일 실시 예에서, Random Forest, Xgboost, 다중회귀분석 등이 인공신경망의 학습에 사용될 수 있다. 다만, 이에 한정되는 것은 아니다. In one embodiment, the artificial neural network, L _avr ,

,

,

,

It can be generated through machine learning using learning data generated by labeling the size in . In one embodiment, random forest, Xgboost, multiple regression analysis, etc. may be used for learning artificial neural networks. However, it is not limited thereto.

Referring to FIG. 9 , the service providing server 100 stores at least one processor 110 and instructions instructing the at least one processor 110 to perform at least one operation. It may include a memory (memory) to.

The at least one operation may include the components 101 to 103 of the service providing server 100 described above or other functions or operation methods.

Here, the at least one processor 110 may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed. there is. Each of the memory 120 and the storage server 160 may be composed of at least one of a volatile storage medium and a non-volatile storage medium.

For example, the memory 120 may be one of read only memory (ROM) and random access memory (RAM), and the storage server 160 may be a flash-memory , a hard disk drive (HDD), a solid state drive (SSD), or various memory cards (eg, a micro SD card).

In addition, the server 100 may include a transceiver 130 that performs communication through a wireless network. In addition, the server 100 may further include an input interface server 140, an output interface server 150, a storage server 160, and the like. Each component included in the server 100 may be connected by a bus 170 to communicate with each other.

Examples of the server 100 include a communicable desktop computer, a laptop computer, a notebook, a smart phone, a tablet PC, and a mobile phone. , smart watch, smart glass, e-book reader, PMP (portable multimedia player), portable game device, navigation server, digital camera, DMB (digital multimedia broadcasting) player , a digital audio recorder, a digital audio player, a digital video recorder, a digital video player, a personal digital assistant (PDA), and the like.

In addition, the above-described method or server may be implemented by combining all or some of its components or functions, or may be implemented separately.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

Claims (1)

As a system that provides a ring size recommendation service,
ring; and
Including a service providing server configured to communicate with the ring,
the ring,
A main body portion formed in an annular shape and having a mounting groove recessed on an inner surface thereof; and
Including a size adjustment unit inserted into the mounting groove,
The size adjustment unit,
an adjustment unit housing inserted into the mounting groove and having a first inner space and a second inner space that are opened toward the inside of the main body;
an expansion part disposed in the first inner space, accommodating a material vaporizing under a preset vaporization condition in the inner space, and formed of an elastic material;
a pressing part disposed in the first inner space and disposed in an inward direction of the body part relative to the expansion part;
a thermoelectric element disposed in the first inner space and disposed outwardly of the body part relative to the expansion part;
a temperature sensor disposed to cover the open portion of the second inner space;
a controller disposed in the second inner space;
a battery disposed in the second inner space;
a pressure sensor disposed between the pressing part and the expanding part; and
A flexible PCB disposed across the first inner space and the second inner space and electrically connecting the temperature sensor, the controller, the battery, the pressure sensor, and the thermoelectric element,
The controller,
When the temperature sensed by the temperature sensor is greater than a preset reference temperature, an output of power input from the battery to the thermoelectric element is gradually increased;
When the measured pressure, which is the pressure sensed by the pressure sensor, reaches the preset limit pressure, the output temperature corresponding to the output of the power input to the thermoelectric element and the time when the measured pressure reaches the limit pressure are matched transmitted to the service providing server;
When the measured pressure is greater than the limit pressure, the output of power input from the battery to the thermoelectric element is gradually reduced, and when the measured pressure, which is the pressure sensed by the pressure sensor, reaches a preset limit pressure, the thermoelectric The output temperature corresponding to the output of the power input to the device and the time when the measured pressure reaches the limit pressure are matched and transmitted to the service providing server,
When the measured pressure is smaller than the limit pressure, the output of power input from the battery to the thermoelectric element is gradually increased, and when the measured pressure, which is the pressure sensed by the pressure sensor, reaches a preset limit pressure, The output temperature corresponding to the output of the power being input to the thermoelectric element and the time when the measured pressure reaches the limit pressure are matched and transmitted to the service providing server;
When the temperature detected by the temperature sensor is lower than a preset reference temperature, power input to the thermoelectric element from the battery is cut off, a wearing release signal is provided to the service providing server, and the wearing release signal is provided to the service providing server. Provides the output temperature and time when the release signal is generated,
The service providing server,
Converting the output temperature into a dimension previously matched with the output temperature;
Creating a plurality of coordinates having the time as an x coordinate value and the dimension as a y coordinate value, and generating a finger size graph using the plurality of coordinates,
Determine the average size of the user's finger circumference using the following equation,

In the above equation, Lavr means the average size, a means the start time input by the user, b means the end time input by the user, and f(x) means the finger It means the y coordinate value for the x coordinate value in the dimension graph,
Correcting the average dimension using the following equation,

In the above equation, L means the corrected average size, Lavr means the first determined average size, a means the start time input by the user, and b means the end input input by the user. means time,

Means the maximum value of the y-coordinate value in the range of x-coordinate values from a to b,

Means the minimum value of the y-coordinate value in the range of x-coordinate values above a and below b, K1 means a preset reference error value,
Determining a recommended size using the corrected average size,
A system that provides a ring size recommendation service.

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