KR102285514B1 - wearable smart thermometer - Google Patents

Abstract

The present invention relates to a wearable smart thermometer and, more specifically, to a wearable smart thermometer which measures the body temperature of a user and transmits the measured value of body temperature to a smart device or a receiving device while worn around the wrist or ankle of the user to check the body temperature of people whose body temperature needs to be checked frequently because of self-quarantine caused by contact with a confirmed patient of infectious disease, or to regularly check the body temperature of patients admitted to a hospital. The wearable smart thermometer in accordance with the present invention measures body temperature using infrared rays generated from the skin surface of a user, has a structure capable of reducing an error caused by infrared rays transmitted unnecessarily to a measured region during the measurement of body temperature or conduction heat transmitted through a main body from skin in contact, enables a smart device or a receiving device to detect whether the wearable smart thermometer is worn by a user, using electric signals transmitted from a band, and provides an inductive impedance coupling method when the electric signals transmitted from the band is transmitted to the main body, thereby enhancing the waterproofness of a product. The wearable smart thermometer in accordance with the present invention comprises: a main body for measuring the body temperature of a user and transmitting the measured value to a smart device or a receiving device; and a band connected to the main body.

Description

Wearable smart thermometer {wearable smart thermometer}

The present invention relates to a wearable smart thermometer. More specifically, for the purpose of checking the body temperature of people who need to check their body temperature frequently because they are in self-quarantine for reasons such as contact with a confirmed person of an infectious disease, or for the purpose of regularly measuring body temperature by wearing it to patients hospitalized, etc. It relates to a wearable smart thermometer that measures a user's body temperature while worn on the wrist or ankle and transmits the measured body temperature value to a smart device or receiver through IoT communication. The wearable smart thermometer according to the present invention measures body temperature using infrared rays generated from the user's skin surface, and when measuring body temperature, infrared rays that are unnecessarily transmitted to the measurement site or conduction heat transmitted through the body from the skin in contact with the body temperature are measured. It has a structure that can reduce it, and by using the electric signal transmitted from the band, the smart device or receiving device can detect whether the user is wearing it or not using the Internet of Things communication, as well as the band When the transmitted electrical signal is transmitted to the main body, it also provides an inductive impedance coupling method, which has the effect of improving the waterproofness of the product.

Corona 19 (COVID-19), which started intensively in Wuhan, China at the end of 2019, has a high fatality rate, but at the time of the outbreak there was no treatment or vaccine, and its contagiousness was very high, so it spreads at a frightening rate. As it spreads around the world, it causes a lot of casualties, making the whole world tremble in fear. In the case of our country, it is also being hit hard, and not only the health and life of the people are threatened, but also the entire nation is suffering from a contraction in economic activity due to this. In addition, millions of people worldwide have died, and many people are living in economic and physical difficulties and despair due to the closure of air routes and blockades of cities. The world is still fighting an endless war against Corona 19. In order to prevent the spread of infectious diseases with high fatality rate and high contagiousness such as COVID-19, the development and dissemination of vaccines, therapeutics or treatments is important, but above all, it is important to stop the spread through rapid and accurate epidemiological investigations.

In the epidemiological investigation of infectious diseases transmitted through close contact, such as COVID-19, when a confirmed person is confirmed to be infected with an infectious disease, specify the place that the confirmed person has visited, and find close contacts who were in that place at the same time. It is desirable to have them take out inspection and quarantine measures. People who have come into close contact with a confirmed person and are subject to isolation may be separated and isolated in a specific isolation facility, but most of them self-quarantine at their place of residence. And, if the symptoms of an infectious disease include a fever, the quarantine authorities will check the body temperature of the self-quarantine on a regular basis. For this purpose, self-quarantine measures their own body temperature and regularly informs the quarantine authorities. However, since the body temperature is measured several times a day, it is very cumbersome for the self-quarantine, and even when they forget whether the measurement time has arrived or not. there are many difficulties Not only that, the quarantine authorities had to put in a lot of manpower to check the body temperature of self-quarantined people, which required a lot of administrative power.

Meanwhile, in hospitals or nursing facilities, the body temperature of inpatients must be measured regularly. For this purpose, nursing personnel such as nurses travel around each hospital room to measure and record the body temperature of inpatients. Therefore, they visit inpatients during the day as well as at night to measure their body temperature, and even go around the night time to measure their body temperature, which sometimes interferes with the inpatient's sleep and requires nursing staff to regularly measure body temperature. This resulted in a shortage of nursing manpower, and the input labor cost became a burden from the hospital's point of view.

In order to solve these difficulties and inconveniences, a method of using a wearable biometric information collection device to collect body temperature information of self-isolated or hospitalized patients is being discussed. That is, the self-quarantine or hospitalized patient should wear an arm band-type body temperature measuring device (wearable thermometer) on the wrist or ankle, and the wearable thermometer regularly measures the body temperature of the wearer to obtain BLE (Bluetooth Low Energy). When the signal is recorded and transmitted, the self-quarantine's smart device or the BLE receiver installed in the hospital room receives it and transmits it to the management server, and the management server receives, records, and manages it, and automatically measures the user's body temperature on a regular basis. and recording and management skills. There may be several technologies or methods for measuring body temperature in such a wearable thermometer, and it measures the user's skin temperature by measuring infrared rays generated from the skin surface and then converts it to actual body temperature using a software algorithm that converts it. A conversion method is also used.

However, in the conventional wearable thermometer that measures body temperature in the infrared method, not only a measurement error occurs depending on the distance between the infrared sensor of the thermometer and the skin surface, but also the infrared sensor has to measure infrared rays generated within the viewing angle. Measurement errors may occur in the process where heat generated from the deviated part is reflected, conducted, or radiated through the body of the thermometer. In addition, if the user takes off the wearable thermometer, measurement is impossible and measurement values cannot be collected. There has been a problem with In addition, if the wearable thermometer can be easily taken off and worn again, a problem arises if another person accidentally or intentionally wears it during the process of taking it off and putting it back on again. In some cases, there is a problem that the medical treatment for the patient is wrong, and if the body temperature of the self-quarantine is incorrectly collected, there are serious problems such as preventing the spread of infectious diseases.

The present invention, which was devised to solve the above problems, measures the user's body temperature while worn on the user's wrist or ankle and transmits it to the user's smart device or body temperature information receiving device through IoT communication, and the smart device or receiving device The device aims to provide a wearable smart thermometer that can transmit it to a management server.

Another object of the present invention is to measure the user's body temperature by measuring infrared rays generated from the user's skin surface, converting it into a body temperature value through a software algorithm, and sending it to the user's smart device or body temperature information receiving device through Internet of Things communication. It aims to provide a wearable smart thermometer that can be transmitted.

Another object of the present invention is to provide a wearable smart thermometer having a structure in which a measurement error does not occur even if an inclination angle between the body and the skin surface occurs when measuring infrared rays generated from the user's skin surface in order to measure the user's body temperature. aim to do

Another object of the present invention is to prevent reflection, conduction or radiation of heat generated from a portion out of the viewing angle of the infrared sensor through the body of the thermometer when measuring infrared rays generated from the user's skin surface to measure the user's body temperature. An object of the present invention is to provide a wearable smart thermometer that does not cause measurement errors.

Another object of the present invention is to provide a wearable smart thermometer capable of detecting when a user wears the wearable smart thermometer according to the present invention and notifying the user's smart device or receiving device.

Another object of the present invention is to provide a wearable smart thermometer capable of detecting when a user puts on and takes off the wearable smart thermometer according to the present invention and notifies the management server through the user's smart device or receiving device. do it with

Another object of the present invention is to provide a wearable smart thermometer that can solve the problem of wearing the wearable smart thermometer according to the present invention by making it impossible for a user to wear it again when he/she puts on and takes off the wearable smart thermometer according to the present invention. do.

Another object of the present invention is to provide a wearable smart thermometer capable of maintaining the waterproof function of the main body, such as preventing the penetration of moisture through the carrier, even though the user has a structure that transmits switching information generated from the band to the main body. aim to do

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

The present invention for achieving the above object is a wearable smart thermometer that measures the user's body temperature while being worn on the user's wrist or ankle and transmits it to a smart device or a receiving device. a body capable of transmitting to the receiving device; and a band connected to both sides of the main body so that the main body can be worn on the user's wrist or ankle, wherein the main body includes: - an opening formed in a circular shape on the side in contact with the user's skin surface when worn, - the An infrared body temperature sensor that is fixed toward the opening from the inside of the main body and measures the skin surface temperature of the user through the opening, a Fresnel lens attached to the inner surface of the main body to seal the opening, the An air tube in the shape of a tire tube, which is attached while enclosing the rim of the opening on the outer surface of the body, and is connected to the infrared body temperature sensor to control the operation of the infrared body temperature sensor, and the infrared body temperature sensor It is preferable to use a wearable smart thermometer comprising a control module for transmitting the measured value of to the smart device or the receiving device.

The present invention also provides, in addition to the above features, the air tube is, - the lower part is attached to the annular coupling groove surrounding the rim of the opening, - the upper part protrudes to a certain height above the outer surface of the main body, - one side It is also preferable to use a wearable smart thermometer, characterized in that when pressure is applied, the pressure is transmitted to another part and the opposite side swells up. The control module further includes a sensor, wherein the control module transmits the measured value of the infrared body temperature sensor measured when the light quantity measured by the light quantity sensor is below a certain level when operating the infrared body temperature sensor to transmit the measured value It is also preferable to use a wearable smart thermometer characterized in that

The present invention also provides, in addition to the above features, the control module is configured to: - Whether the smart thermometer is in a first state before the user wears it, in a second state in which the user wears it, or in a third state in which the smart thermometer is worn and then removed again. It is possible to determine whether the state is changed to the second state or the third state, and the result of the state change is transmitted to the smart device or the receiving device, and the smart device or the receiving device, It is also preferable to use a wearable smart thermometer characterized in that it is operated by reflecting the measurement value received from the control module and the result of the state change.

The present invention also provides, in addition to the above-described features, the band is divided into a first band and a second band so that one end of each is coupled to both sides of the main body, and the opposite end is coupled to each other so that the user's wrist or ankle is secured. The first band and the second band each include a switching circuit connected to the control module or a switching circuit connected to a secondary coil that is impedance-coupled to the control module, - the first band and In the first state in which the second bands are not coupled to each other, the switching circuit included in the first band is in a connected state, and the switching circuit included in the second band is in an open state, - the first band and in the second state in which the second band is coupled to each other, both the switching circuits included in the first band and the second band are in a connected state, and - the coupled first band and the second band are connected to each other. In the separated third state, both the switching circuits included in the first band and the second band are in an open state, and the control module is configured such that the switching circuits included in the first band and the second band are in an open state. It is also preferable to use a wearable smart thermometer characterized in that it is determined whether the smart thermometer is in the first state, the second state, or the third state by determining whether it is in an open state or a connected state.

The present invention also includes coupling means for coupling the first band and the second band at the ends of the first band and the second band, respectively, in addition to the above features, The coupling means, while maintaining the switching circuit in a connected state, makes the switching circuit open when the first band and the second band are coupled and separated, and the coupling means included in the second band includes the While maintaining the switching circuit in an open state, when the first band and the second band are coupled, the switching circuit is put into a connected state, and when the first band and the second band are separated again, the switching circuit It is also preferable to use a wearable smart thermometer characterized in that when the coupling means included in each of the first band and the second band are coupled to each other and then separated, they cannot be coupled again.

The present invention also includes, in addition to the above-described features, the coupling means included in the first band is a coupling protrusion, including a locking pole whose lower end is coupled to the first band and a locking cap coupled to the upper end of the locking pole. However, the locking cap is a mushroom head-shaped contractible elastic material, and has a stepped portion having a larger diameter than that of the locking pole at a portion coupled to the upper end of the locking pole, and a conductor band surrounding the locking pole and inside the locking cap, a connection line for making the switching circuit in a connected state is wired, and the coupling means included in the second band is capable of being fitted with the coupling protrusion A coupling ring having an annular column shape, - a pair of electrodes connected to the switching circuit is formed on an inner circumferential surface; In the case of loss, - the stepped portion of the locking cap is caught on the upper end of the coupling ring to maintain the coupling state of the first band and the second band, - the pair of electrodes is connected through the conductor band of the locking pole When a force is applied to the first band and the second band in a direction to separate them from each other, and the coupling protrusion is removed from the coupling ring, the step portion of the locking cap is caught on the upper end of the coupling ring, so that the locking cap is closed. In order to be separated from the locking pole, the locking cap is a material that can be cut when a certain tensile force is applied, and when the locking cap is separated from the locking pole, the connecting line is cut so that the connecting line can be cut when a certain tensile force is applied It is also preferable to use a wearable smart thermometer characterized in that it is made of a cuttable structure or material.

The present invention also includes, on both sides of the body, coupling shafts having both ends coupled to the body in a state of being fitted to one end of the first band or the second band, respectively, in addition to the above-described features, and on both sides of the coupling shaft A conductor portion is formed, and an insulating portion is provided in the middle to insulate the conductor portions from each other, and among the conductor portions, a portion inserted into the body is electrically connected to the control module, - the first band or the second The part fitted in the band is a wearable smart thermometer, characterized in that it is electrically connected to the switching circuit, or on both sides of the body, both ends of the body are fitted with one end of the first band or the second band, respectively. and a metal coupling shaft coupled thereto, wherein the first band or the second band is fitted to the coupling shaft, and the secondary coil is formed while winding the coupling shaft within the first band or the second band. , Both ends of the secondary coil are electrically connected to the switching circuit, and a C-shaped iron core is included in both sides of the main body, and the center of the C-shaped iron core has a primary coil electrically connected to the control module wound. , It is also preferable to use a wearable smart thermometer characterized in that both ends of the C-shaped iron core face both ends of the coupling shaft, and air gaps are respectively formed between both ends of the C-shaped core and both ends of the coupling shaft.

As described above, the wearable smart thermometer according to the present invention includes an air tube, which is attached while surrounding the rim of the opening, where the infrared sensor measures body temperature, and has the shape of a tire tube in which air is injected. Therefore, it is possible to measure body temperature while the body temperature measurement part of the infrared sensor is disconnected from other parts, which has the effect of minimizing measurement error during body temperature measurement.

In addition, the lower part of the air tube included in the present invention is attached to the annular coupling groove surrounding the rim of the opening, and since the upper part protrudes to a certain height above the outer surface of the main body, the skin around the opening is spaced apart from the main body, thereby Conductive heat transferred to the body when the skin and the body come into close contact can be minimized, so there is an effect that can minimize the measurement error when measuring body temperature.

In addition, since the air tube included in the present invention is characterized in that when pressure is applied to one side, the pressure is transferred to the other side and the opposite side is inflated, the measurement site corresponding to the viewing angle of the infrared sensor is always connected to the outside. Since it is in a disconnected state, and thus infrared rays transmitted and reflected from the outside can be minimized, there is an effect that can minimize measurement errors when measuring body temperature.

And the present invention further includes a light quantity sensor that measures the amount of light from the inside of the main body toward the opening, in this case, the control module operates the infrared body temperature sensor to transmit the measured value, the light quantity measured by the light quantity sensor is constant Since the measured value of the infrared body temperature sensor is transmitted only when the level is below the level, the measured value measured and transmitted by the infrared sensor becomes the value measured when the amount of light entering the air tube is the minimum. It is measured only when it is in close contact with the body, so it has the effect of minimizing the measurement error when measuring body temperature.

In addition, the control module included in the present invention can determine whether the smart thermometer is in a first state before the user wears it, in a second state in which the user wears it, or in a third state in which the smart thermometer is worn and removed again. , when there is a state change, the state change result is transmitted to the smart device or the receiving device, and the smart device or the receiving device operates by reflecting the measurement value and the state change result received from the control module, so that the user The manager can easily determine whether the smart thermometer is worn or not, and can take action accordingly.

In addition, the present invention is filled while wrapping the user's wrist or ankle by dividing the band connected to the main body into a first band and a second band to be combined with each other, and each of the first band and the second band has a 'switching circuit connected to the control module. ' or 'switching circuit connected to the secondary coil that is impedance-coupled to the control module' is included, and in the first state in which the first band and the second band are not coupled to each other, the switching circuit included in the first band is connected and the switching circuit included in the second band is in an open state, and in the second state in which the first band and the second band are coupled to each other, the switching circuits included in the first band and the second band are all connected. and, in the third state in which the combined first and second bands are separated from each other, since the switching circuits included in the first and second bands are all open, the control module operates the first and second bands. By determining whether the switching circuit included in the second band is in an open state or a connected state, it is possible to determine whether the smart thermometer is in the first state, the second state, or the third state. Accordingly, the manager can easily determine whether the user is wearing the smart thermometer or not, and can take action accordingly.

In addition, a coupling means for coupling the first band and the second band is included at the ends of the first band and the second band, respectively, and the coupling means included in the first band maintains the switching circuit in a connected state, When the first band and the second band are combined and separated, the switching circuit is opened, and the coupling means included in the second band maintains the switching circuit in an open state, and when the first band and the second band are combined makes the switching circuit in a connected state, and when the first band and the second band are separated again, the switching circuit is made in an open state, so the control module checks whether the switching circuits included in the first and second bands are in an open state. Alternatively, it is possible to determine whether the smart thermometer is in the first state, the second state, or the third state by determining whether it is in the connected state. Therefore, the administrator can easily determine whether the user is wearing the smart thermometer or not, and can take action accordingly.

In addition to this, in the present invention, when the coupling means included in the first band and the second band are respectively coupled to each other and then separated, they cannot be coupled again. In this case, it is impossible to wear it again, and it is impossible to fill it with another person. By preventing the smart thermometer from being arbitrarily detached according to the user's needs, it is possible to secure the reliability of body temperature information obtained from self-quarantine or hospitalized patients.

In addition, it has a coupling means consisting of a coupling protrusion and a coupling ring, and the coupling protrusion has a locking cap made of a mushroom head-shaped contractible elastic material, and since the locking cap has a stepped portion having a larger diameter than the locking pillar, the coupling protrusion is formed. When coupled to the coupling ring, the stepped portion of the locking cap is caught on the upper end of the coupling ring, so that the coupling state of the first band and the second band can be maintained.

In addition, the locking pole includes a conductor strip that surrounds the outer circumferential surface with a certain width, and since a pair of electrodes connected to the switching circuit is formed on the inner circumferential surface of the coupling ring, when the coupling protrusion is coupled to the coupling ring, the pair of Since the electrode is connected through the conductor band of the locking pole, when the ends of the first band and the second band are coupled to the second state, the control module can immediately detect it.

In addition, the locking cap is a material that can be cut when a certain tensile force is applied, and when the locking cap is separated from the locking pole, so that the connecting wire can be cut, the connecting wire is made of a structure or material that can be cut when a certain tensile force is applied. In order to remove the first band and the second band by applying a force in the direction of separating the first band and the second band, when the engaging protrusion is removed from the engaging ring, the step portion of the engaging cap is caught on the upper end of the engaging ring and the engaging cap is separated from the engaging pillar, Accordingly, the connection line inside the coupling protrusion is cut, so that the switching circuit of the first band is in an open state. Therefore, as soon as the user takes off the smart thermometer, the control module has the effect of being able to recognize that it has entered the third state.

In addition, both sides of the body include coupling shafts having both ends coupled to the body in a state of being fitted to one end of the first band or the second band, respectively, conductor parts are formed on both sides of the coupling shaft, and an insulating part for insulating the conductor parts from each other in the middle and, among the conductor parts, the portion inserted into the body is electrically connected to the control module, and the portion inserted into the first band or the second band is electrically connected to the switching circuit, so that the first band or the second band There is an effect that the control module can immediately determine whether the band's switching circuit is open or connected.

In addition to this, both sides of the main body include a metal coupling shaft having both ends coupled to the body in a state of being fitted to one end of the first band or the second band, respectively. , The secondary side coil is formed while winding the coupling shaft within the first band or the second band, both ends of the coil are electrically connected to the switching circuit, and U-shaped iron cores are included in both sides of the body, respectively, and the center of the U-shaped core is The primary side coil electrically connected to the control module is wound, and both ends of the U-shaped iron core face both ends of the coupling shaft, but air gaps are formed between both ends of the U-shaped core and both ends of the coupling shaft. Even if the module is not directly electrically connected, the control module can immediately determine whether the switching circuit of the first band or the second band is in an open state or a connected state through inductive impedance coupling. Accordingly, there is no direct electrical or mechanical connection between the control module inside the main body and the switching circuit inside the band, so there is no room for moisture to penetrate, thereby increasing the waterproof performance of the smart thermometer body.

1 is a conceptual diagram for explaining a problem of a wearable thermometer according to the prior art.
2 is a perspective view showing a state in which the wearable smart thermometer according to the present invention is worn on a user's body.
3 is a perspective view showing the back side (surface in contact with the user's skin) in an unfolded state of the wearable smart thermometer according to the present invention;
4 is a perspective view showing the front of the wearable smart thermometer in an unfolded state according to the present invention;
5 is a side view of a wearable smart thermometer in an unfolded state according to the present invention;
6 is an exploded perspective view in which the infrared sensor part of the wearable smart thermometer according to the present invention is disassembled.
7 is a cross-sectional view of the infrared sensor part of the wearable smart thermometer according to the present invention.
8 is a cross-sectional view for explaining the operating principle of the air tube included in the present invention.
9 is a detailed view of the coupling protrusion and coupling ring included in the present invention.
10 is a perspective view for explaining the switching circuit included in the band of the wearable smart thermometer according to the present invention.
11 is a plan view for explaining the connection between the switching circuit and the control module included in the present invention.
12 is a perspective view for explaining another embodiment of the switching circuit included in the present invention.
13 is a plan view illustrating a connection with a control module in another embodiment of the switching circuit included in the present invention.
14 is a circuit diagram illustrating the principle that impedance varies depending on whether the switching circuit included in the present invention is opened.

Hereinafter, the present invention will be described in detail so that the above-described objects and features become clear, and accordingly, those skilled in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In addition, in the description of the present invention, if it is determined that the detailed description of the known technology may unnecessarily obscure the gist of the present invention as it is already well known in the technical field among the known technologies related to the present invention, the detailed description is given. to be omitted.

In addition, the terms used in the present invention have been selected as widely used general terms as possible, but in certain cases, there are also terms arbitrarily selected by the applicant. It is intended to clarify that the present invention should be understood as the meaning of the term, not the name. Terms used in the description of the embodiments are only used to describe specific embodiments, and are not intended to limit the embodiments. The singular expression includes the plural expression unless the context clearly dictates otherwise.

Embodiments may be modified in various forms and may have various additional embodiments, wherein specific embodiments are shown in the drawings and related detailed descriptions are given. However, this is not intended to limit the embodiments to specific forms, and it should be understood to include all changes or equivalents or substitutes included in the spirit and scope of the embodiments.

In the description of various embodiments, expressions such as “first”, “second”, “first” or “second” may modify various components of the embodiments, but do not limit the corresponding components. For example, the above expressions do not limit the order and/or importance of corresponding components. The above expressions may be used to distinguish one component from another.

Hereinafter, the present invention will be described with reference to the accompanying drawings. 1 is a conceptual diagram for explaining a problem of a wearable thermometer according to the prior art. In general, in a wearable thermometer using an infrared sensor, as shown in FIG. 1 , the infrared body temperature sensor 200 is fixedly installed on a substrate 290 accommodated in the body 100, and the body 10 of the body 100 is By forming the opening 240 on the surface facing the skin surface, the infrared body temperature sensor 200 measures the infrared rays emitted from the surface of the skin 10 through the opening 240, and the measured infrared The conversion algorithm is applied to convert to body temperature and then it is transmitted to the smart device, or the measured infrared amount is directly transmitted to the smart device. do. In this process, in order to increase the accuracy of the measurement, a Fresnel lens 230 may be included between the infrared body temperature sensor 200 and the measurement part 243 . The Fresnel lens 230 is obtained by dividing the surface of the lens into several bands of an annular shape. The Fresnel lens 230 has advantages in that it has a thinner thickness and higher light efficiency than a conventional lens having the same focal length. In particular, as the distance between the outside of the body 100 to which the lens unit is coupled and the substrate 290 is decreasing according to the trend toward thinner temperature sensor devices, it is advantageous to use the Fresnel lens 230 rather than a general lens. . In addition, since the Fresnel lens 230 has a high light transmittance, measurement accuracy may be improved.

However, in general, in a wearable thermometer using an infrared sensor, as shown in FIG. Heat generated from the skin is inevitably conducted to 100 (refer to the red arrow), and as a result, the temperature of the body 100 increases due to the conductive heat generated in the body 10, and accordingly, the body 100 Infrared radiation is emitted due to conduction heat. Accordingly, the infrared rays emitted from the body 100 are radiated to within the viewing angle 211 of the infrared body temperature sensor 200 of the body 10 , that is, to the measurement part 243 of the infrared body temperature sensor 200 . Accordingly, the amount of infrared radiation measured by the measurement portion 243 is greater than the infrared radiation emitted from the body 10 . In addition, the body 100 heated by the conductive heat generated in the body 10 also transfers conductive heat to the Fresnel lens 230 and raises the temperature of the Fresnel lens 230 by emitting infrared rays. . Accordingly, since the infrared body temperature sensor 200 measures infrared rays emitted from the body 10 as well as infrared rays emitted from the Fresnel lens 230, this also acts as a cause of measurement errors. In addition to this, since the wearable thermometer is typically worn on the wrist or ankle, etc., when the user moves, the angle of inclination between the surface of the body 100 and the skin surface of the body 10 as shown in FIG. 1(b) . Inevitably, when the inclination angle is generated in this way, a measurement error occurs because infrared rays generated in the range 242 out of the measurement portion 243 are measured. In addition, infrared rays generated from the body 10 other than the measuring part 243 are reflected by the main body 10 through the gap generated between the main body 100 and the body 10, and the measuring part 243 is reflected. Also, since infrared rays generated from the main body 100 that have received conductive heat through long-term contact with the body 10 are radiated to the measurement portion 243, this also causes aggravation of measurement errors.

The wearable smart thermometer according to the present invention was created to solve the problems of the prior art. 2 is a perspective view showing a state in which the wearable smart thermometer according to the present invention is worn on the user's body 10 such as the user's wrist or ankle, and in FIG. 3 is a state in which the wearable smart thermometer according to the present invention is unfolded. A perspective view showing a rear surface (a surface in contact with the user's body) is shown, and FIG. 4 is a perspective view showing a front surface thereof. 5 shows the side of the wearable smart thermometer in an unfolded state according to the present invention, and FIG. 6 shows an exploded perspective view in which the infrared sensor part is disassembled. Hereinafter, the present invention will be described with reference to FIGS. 2 to 6 . As shown in FIGS. 2 to 6 , the wearable smart thermometer according to the present invention measures the user's body temperature while being worn on the user's wrist or ankle 10 and converts it into an IoT signal such as a BLE (Bluetooth Low Energy) signal. As a wearable smart thermometer that transmits to a smart device (not shown) or a receiving device (not shown), the body 100 and the main body 100 that can measure the user's body temperature and transmit it to the smart device or the receiving device are used by the user It is preferable to include a band 300 connected to both sides of the body 100 so as to be worn on the wrist or ankle 10 of the body 100 . And the band 300 is divided into two as shown in FIG. 2, and by combining the ends of the two bands 300a and 300b with each other, it can be stably worn on the user's wrist or ankle 10. It is preferable to have

On the other hand, it is preferable that the main body 100 includes an opening 240 formed in a circular shape on the side in contact with the skin surface of the user's body 10 when worn. It is fixed toward 240 and it is preferable to include an infrared body temperature sensor 200 for measuring the skin surface temperature of the user through the opening 240 . And the opening 240 is such that the cut surface of the edge 241 is inclined so that the outer radius of the main body 100 is larger than the inner radius, and the inclination θ of the cut surface of the edge 241 is the It is preferable that the viewing angle 211 (refer to FIG. 7) of the infrared body temperature sensor 200 is the same as the angle formed with the sensor surface. As shown in FIG. 6 , the infrared body temperature sensor 200 has a sensor lens 210 positioned in the center of a can-shaped body, and a sensor (not shown) is positioned therein. And a Fresnel lens 230 for increasing the measurement accuracy of the infrared body temperature sensor 200 is attached to the inner surface of the main body 100 so that the Fresnel lens 230 closes the opening 240 . It is more preferable to attach. The infrared body temperature sensor 200 measures the temperature by measuring the amount of infrared rays generated from the surface within the range of the viewing angle 211 . That is, the skin surface within the range of the viewing angle 211 becomes the measurement site 241 (refer to FIG. 1 ).

In addition, it is preferable that the outer surface of the main body 100 includes an air tube 250 in the shape of a tire tube attached while surrounding the rim 241 of the opening 240 , in which air is injected. The air tube 250 is preferably made of a material having low thermal conductivity and high modulus of elasticity, such as a silicon material, and an internal space 252 into which air can be injected as shown in FIG. 6 is included. . In addition, in the present invention, the smart device is connected to the infrared body temperature sensor 200 to control the operation of the infrared body temperature sensor 200, and the measured value of the infrared body temperature sensor 200 is transmitted using the Internet of Things communication method. Alternatively, it is preferable to further include a control module 500 for transmitting to the receiving device. To this end, it is preferable that the control module 500 includes a communication means (not shown) capable of communicating with the smart device or the receiving device. When the control module 500 transmits the measured value to the smart device or the receiving device, the raw data value measured by the infrared body temperature sensor 200 is converted using software having a conversion algorithm. It is also preferable to transmit the body temperature value converted into body temperature, and the control module 500 transmits the raw data value measured by the infrared body temperature sensor 200, and the smart device or the receiving device. It is also desirable to convert the device into a body temperature value using a software conversion algorithm. On the other hand, it is preferable that the main body 100 includes a power supply means (not shown) for operating the control module 500 and the infrared body temperature sensor 200, etc., and a battery is used as the power supply means. Preferably, it is also possible to use a solar cell.

The detailed structure of the infrared sensor 200 and the opening 240 and the operating principle of the air tube 250 are shown in FIGS. 6, 7 and 8, which are It is an exploded perspective view and cross-sectional view of the infrared sensor 200, the opening 240, and the air tube 250 in a wearable smart thermometer, and FIG. 8 explains the operating principle of the air tube 250 included in the present invention. It is a cross-sectional view for Hereinafter, it will be described with reference to FIGS. 1 to 8 . As shown in FIGS. 6 and 7 , the air tube 250 is attached to an annular coupling groove 251 having a lower portion surrounding the rim 241 of the opening 240 , and the upper portion of the main body 100 . It is preferable to protrude up to a certain height (h) above the outer surface. Since the present invention includes the air tube 250 protruding up to a predetermined height h on the outer surface of the main body 100 as described above, at least around the opening 240, as shown in FIG. Likewise, the distance between the main body 100 and the user's body 10 can be separated by the predetermined height h, thereby minimizing the conduction heat transferred from the user's body 10 to the main body 100. Therefore, it is possible to minimize the measurement error of the infrared sensor 200 .

In addition, the air tube 250 uses a material with low thermal conductivity and high elasticity, such as a silicon material, and includes an internal space 252 into which air can be injected as shown in FIGS. 6 to 8 . Therefore, it is possible to minimize the conduction heat directly transferred from the user's body 10 to the main body 100, as well as being made of an elastic material, like a tire tube, the portion to which pressure is applied when pressure is applied to one side. The volume of the body becomes smaller, and the pressure is transferred to the rest of the body, and it gradually expands toward the opposite side. Therefore, as shown in FIG. 8(b), when the right side of the smart thermometer is inclined low and an inclination angle is generated with the surface of the user's body 10, pressure is applied to the left side of the air tube 250, Accordingly, the left internal space 252a of the air tube 250 is compressed to reduce its volume, and the pressure generated while the left internal space 252a is compressed is transmitted to other parts, and accordingly, the user's body ( 10), that is, the right inner space 252a of the air tube 250 becomes the greatest height h2 by the transmitted pressure. And the height of the air tube 250 is gradually increased from the left (h1) to the right (h2). Accordingly, as shown in FIG. 8( b ), the gap generated due to the inclination angle between the surface of the user's body 10 and the body 100 is blocked by the air tube 250 , and accordingly, the infrared body temperature sensor Since 200 only measures the amount of infrared radiation generated from the measurement portion 243, measurement error can be minimized. Fig. 8(c) shows a case in which the left side of the smart thermometer is tilted low and an inclination angle is generated with the surface of the user's body 10, which is opposite to the situation of Fig. 8(b). Since the measurement error can be minimized in the same principle as described with reference to b), a description thereof will be omitted.

On the other hand, it is preferable that the main body 100 included in the present invention further include a light quantity sensor 600 for measuring the amount of light from the inside of the main body 100 toward the opening 240 . When the light quantity sensor 600 is further included, the control module 500 operates the infrared body temperature sensor 200 to measure body temperature and transmit the measured value. It is preferable to transmit only the 'measured value of the infrared body temperature sensor 200' measured when the amount of light is below a certain level. This is because the value measured when the air tube 250 completely blocks the gap between the air tube 250 and the user's body 10 is the most accurate measurement value. Even if there is the air tube 250, when the user moves violently or the user moves to change the position of the smart thermometer, a gap may occur between the air tube 250 and the user's body 10, in this case, the A measurement error appears in the value measured at the measurement site 243 . However, when the light quantity sensor 600 is included, the light quantity at the time when the air tube 250 closes the gap between the user's body 10 and the user's body 10 is set to the predetermined level. When only the measured values measured below are used, the measured values of the infrared body temperature sensor 200 can be transmitted as accurate values. That is, even while the smart thermometer is moving on the user's body 10, there will be a moment when the gap between the air tube 250 and the user's body 10 is minimized, and the light quantity sensor 600 is Since the measured value of the infrared body temperature sensor 200 is transmitted at that moment, it is possible to obtain a measured value with a minimized measurement error.

On the other hand, it is preferable that the wearable smart thermometer according to the present invention be able to determine by itself whether it is in a state before the user wears it, in a state in which the user wears it, or in a state in which the user puts it on and then takes it off. To this end, the control module 500 included in the present invention determines whether the smart thermometer is in the first state before the user wears it, in the second state in which the user wears it, or in the third state in which the smart thermometer is worn and then taken off again. can be determined, and when the state is changed to the second state or the third state, the result of the state change is transmitted to the smart device or the receiving device, and the smart device or the receiving device includes the control module ( 500), it is preferable to reflect the measurement value and the result of the state change to be operated. It is also preferable that the smart device or the receiving device include a dedicated application for this operation. Hereinafter, this will be described with reference to FIGS. 9 to 14 . 9 is a detailed view of the coupling protrusion and coupling ring included in the present invention, and FIG. 10 is a perspective view for explaining the switching circuit included in the band of the wearable smart thermometer according to the present invention. And FIG. 11 is a plan view for explaining the connection between the switching circuit and the control module included in the present invention. In addition, FIG. 12 is a perspective view for explaining another embodiment of the switching circuit included in the present invention, and FIG. 13 is a plan view for explaining the connection with the control module in another embodiment of the switching circuit included in the present invention. And FIG. 14 is a circuit diagram for explaining the principle that the impedance varies depending on whether the switching circuit included in the present invention is opened.

9 to 14, the band 300 included in the present invention is divided into a first band 300a and a second band 300b, and one end of each is located on both sides of the main body 100. Each is coupled to the connecting portion 110, and the opposite ends are preferably coupled to each other so that they are filled while wrapping the user's wrist or ankle. And each of the first band 300a and the second band 300b has a 'switching circuit 410 connected to the control module 500' or a 'secondary side coil that is impedance-coupled with the control module 500 ( It is preferable to include the switching circuit 410' connected to the 450). And in the first state in which the first band 300a and the second band 300b are not coupled to each other, the switching circuit 410 included in the first band 300a is in a connected state, The switching circuit 410 included in the second band 300b is in an open state, and in the second state in which the first band 300a and the second band 300b are coupled to each other, the first band 300a ) and the switching circuit 410 included in the second band 300b are all connected, and in the third state in which the coupled first band 300a and the second band 300b are separated from each other. , it is preferable that both the switching circuit 410 included in the first band 300a and the second band 300b be in an open state. And the control module 500 detects whether the switching circuit 410 included in the first band 300a and the second band 300b is in an open state or a connected state, so that the smart thermometer is It is preferable to determine whether it is the first state, the second state, or the third state.

Therefore, a coupling means for coupling the first band 300a and the second band 300b is included at the end of the first band 300a and the second band 300b, respectively, and the first band 300b is provided. The coupling means included in the band 300a connects and separates the first band 300a and the second band 300b while maintaining the switching circuit 410 in a connected state. ) is desirable to make it open. In addition, the coupling means included in the second band 300b maintains the switching circuit 410 in an open state, and when coupling the first band 300a and the second band 300b, the switching It is preferable to make the circuit 410 into a connected state, and to make the switching circuit 410 open when the first band 300a and the second band 300b are separated again. In addition, when the coupling means included in each of the first band 300a and the second band 300b are coupled to each other and then separated, it is more preferable that they cannot be coupled to each other again. If the coupling means are coupled to each other and then separated from each other so that they cannot be coupled again, problems such as wearing the smart thermometer after putting it on and taking it off can be prevented from occurring. In this case, the wearable smart thermometer according to the present invention is manufactured as a low-cost disposable so that one person does not use it again after using it, or collects the wearable smart thermometer used once and replaces the band 300 with a new band for reuse. It will also be possible

On the other hand, as the coupling means for coupling the first band 300a and the second band 300b, a variety of coupling means may be applied, but the coupling means included in the first band 300a is It is also preferable that the coupling protrusion 310 is used, and the coupling means included in the second band 300b is an annular column-shaped coupling ring 320 into which the coupling protrusion 310 can be fitted. FIG. 2 shows a state in which the coupling protrusion 310 is fitted into one of the coupling rings 320. As shown in FIGS. 2 to 5, the first band 300a has one coupling protrusion 310 as shown in FIGS. ), and by including a plurality of coupling rings 320 in the second band 300b, it is more preferable to combine and use it in an appropriate size according to the thickness of the user's wrist or ankle 10. do.

The detailed structure of the coupling protrusion 310 and the coupling ring 320 into which the coupling protrusion 310 is fitted is shown in FIG. 9 . Figure 9 (a) shows the state before the coupling protrusion 310 is fitted into the coupling ring 320, and in Fig. 9 (b), the coupling protrusion 310 is inserted into the coupling ring 320. appearance is shown. And, in FIG. 9(c), the engaging protrusion 310 is separated from the engaging pole 311 while the engaging protrusion 310 is inserted into and then removed from the engaging ring 320, and thus the connecting line 314 is A cutaway view is shown. Therefore, the state of Fig. 9 (c) is a state in the above description, “when the coupling means are coupled to each other and then separated, they cannot be coupled to each other again”. 9(d) shows a state before the connecting line 314 is cut, and FIG. 9(e) shows a state after the connecting line 314 is cut.

As shown in FIG. 9, the engaging protrusion 310 has a locking pole 311 whose lower end is coupled to the first band 300a and a locking cap 312 coupled to the upper end of the engaging pole 311. However, the locking cap 312 is a mushroom head-shaped contractible elastic material, and has a stepped portion 312a having a larger diameter than that of the locking pillar 311 at a portion coupled to the upper end of the locking pillar 311 . ) is desirable to have. And the locking pillar 311 includes a conductor strip 313 surrounding the outer circumferential surface with a predetermined width, and inside the locking pillar 311 and the locking cap 312, the switching circuit 410 is connected in a connected state. It is preferable that the connecting line 314 to be made is wired. The connecting line 314 is drawn into the lower end of the locking pillar 311, returns after reciprocating between the locking pillar 311 and the locking cap 312, and is drawn out to the lower end of the locking pillar 311 again. desirable.

On the other hand, as described above, the coupling means included in the second band 300b is preferably a coupling ring 320 having an annular column shape into which the coupling protrusion 310 can be fitted. And a pair of electrodes 322 connected to the switching circuit 410 are formed on the inner circumferential surface of the coupling ring 320 , and the inner circumferential diameter of the coupling ring 320 is the stepped portion of the locking cap 312 . (312a) It is preferable to make it smaller than the diameter. Accordingly, when the coupling protrusion 310 is fitted to the coupling ring 320 as shown in FIG. As shown in , the coupling state of the first band 300a and the second band 300b can be maintained. In addition, the pair of electrodes 322 is connected through the conductor strip 313 of the locking pillar 311 .

And with respect to the first band (300a) and the second band (300b), by applying a force in a direction to separate them from each other, when the coupling protrusion 310 is subtracted from the coupling ring 320, the coupling ring ( The step portion 312a of the locking cap 312, which is larger than the inner circumferential diameter of 320, is caught on the upper end of the coupling ring 320 so that the locking cap 312 can be separated from the locking pillar 311. desirable. To this end, it is preferable that the engaging cap 312 or the engaging pole 311 and the engaging portion of the engaging cap 312 are made of a material or structure that can be cut when a certain tensile force is applied. That is, the engaging portion of the engaging cap 312 or the engaging pillar 311 and the engaging cap 312 is maintained such that the first band 300a and the second band 300b are stably coupled in normal times. Soft silicone that can be separated from the locking pillar 311 when a tensile force exceeding a certain degree is applied while having an appropriate resistance to the tensile force so that it can fall off when pulled off with a strong force. It is preferable to use the same material.

And when the locking cap 312 is separated from the locking pillar 311, the connection wire 314 may be cut so that the connection wire 314 is preferably made of a structure or material that can be cut when a certain tensile force is applied. do. For example, it is also desirable to have a structure as shown in FIGS. 9(d) and 9(e), and the covering 316 of the connecting wire 314 is divided into two (316a, 316b), and the core wire 315. In addition, the two core wires 315a and 315b are divided into two so that they overlap each other in one covering 316b as shown in FIG. In this state, as shown in Fig. 9(e), when pulled from both sides (refer to the blue arrow), the two sheaths 316a and 316b are separated, and the two core wires 315a and 315b are also separated, and thus the connection state is changed. The maintained connection line 314 is changed to an open state.

Meanwhile, in FIG. 10 , a perspective view for explaining how the switching circuit 410 is connected within the band is shown, and in FIG. 11 , for explaining the connection between the switching circuit 410 and the control module 500 . A top view is shown. As described above, it is preferable that the control module 500 detects whether the switching circuit 410 is in an open state or a connected state. Therefore, it is preferable that the switching circuit 410 and the control module 500 be electrically connected so that the control module 500 can know the state of the switching circuit 410 . To this end, on both sides of the main body 100 , as shown in FIG. 10 , each end is fitted to one end of the first band 300a or the second band 300b, and both ends are the connecting parts of the main body 100 . It is preferable to include a coupling shaft 120 coupled to the 110 . In addition, it is preferable that the conductive parts 121 are formed on both sides of the coupling shaft 120 , and the insulating parts 122 that insulate the conductor parts 121 formed on both sides in the middle are preferably provided. And, as shown in FIG. 11 , among the conductor parts 121 , the part inserted into the connection part 110 of the body 100 is electrically connected to the control module 500 through the body wiring 430 , , connected to the brush 420 by wrapping a metal brush 420 in contact with the conductor part 121 on a portion fitted to the first band 300a or the second band 300b. Preferably, the switching circuit 410 allows the control module 500 to be electrically connected.

When such a connection is made, the circuit shown in FIG. 11 is completed. As shown in FIG. 11 , the main body wiring 430 drawn out from the left side of the control module 500 is one conductor of the coupling shaft 120 . It is connected to the switching circuit 410 wired in the first band 300a through the part 121 through the brush 420 surrounding the conductor part 121, the switching circuit 410 One of the coupling protrusions 310 is connected to both ends of the, and the coupling protrusion 310 is connected from the inside through the connecting line 314, so that in the first state and the second state, the control module 500 The switching circuit 410 of the first band 300a connected to is in a connected state, and in the third state, the connecting line 314 included in the coupling protrusion 310 is separated while the locking cap 312 is separated. Since it is in a cut state, the switching circuit 410 of the first band 300a is in an open state.

And the main body wiring 430 drawn out from the right side of the control module 500 is connected to one conductor part 121 of the coupling shaft 120, and the brush 420 surrounding the conductor part 121 is removed. It is connected to the switching circuit 410 wired in the second band 300b via a plurality of coupling rings 320 are connected in parallel to both ends of the switching circuit 410, and the plurality of coupling rings ( 320) Since the pair of electrodes 322 exist in an open state on each inner circumferential surface, the switching circuit 410 of the second band 300b connected to the control module 500 is opened in the first state. state, and in the second state, the coupling protrusion 310 is fitted to one of the plurality of coupling rings 320 , and accordingly, the coupling protrusion 310 passes through the conductor strip 313 included in the coupling protrusion 310 . Since the pair of electrodes 322 are connected, the switching circuit 410 of the second band 300b connected to the control module 500 is in a connected state, and in the third state, in the coupling ring 320 Since the coupling protrusion 310 is in a protruding state, the pair of electrodes 322 from which the conductive strip 313 has exited remains open again, so that the second connected protrusion 310 is connected to the control module 500 . The switching circuit 410 of the band 300b is again in an open state.

Meanwhile, FIG. 12 is a perspective view illustrating another embodiment of a switching circuit included in the present invention, and FIG. 13 is a plan view illustrating a connection to a control module in another embodiment of the switching circuit. And, FIG. 14 is a circuit diagram illustrating the principle that the impedance varies depending on whether the switching circuit included in the present invention is opened. As described above, it is preferable for the control module 500 to determine whether the switching circuit 410 is in an open state or a connected state, and for this purpose, the control module 500 determines the state of the switching circuit 410 It is preferable that the switching circuit 410 and the control module 500 be electrically connected to each other so as to be known. However, this embodiment provides a method for allowing the control module 500 to know the state of the switching circuit 410 even if the switching circuit 410 and the control module 500 are not directly connected.

In order to directly electrically connect the switching circuit 410 and the control module 500, a conductor or a metal material inserted from the outside to the inner space is required, and a conductor or a metal material is inserted from the outside to the inner space. When it is done, the airtightness of the main body 100 is weakened because moisture easily penetrates through the gap generated between the conductor or metal object and the main body 100, and thus the waterproof function of the main body 100 is very weak. will lose Since the infrared body temperature sensor 200 is installed in the body 100 as well as the board 290 to which circuit elements are attached and wired, when moisture penetrates from the outside, a malfunction occurs and causes a malfunction. On the other hand, since the wearable smart thermometer according to the present invention has to be worn on the user's body 10 at all times, the possibility of moisture penetration increases when the user takes a shower, washing face, washing dishes, etc., so the waterproof function must be strong.

If the switching circuit 410 and the control module 500 are not directly connected, moisture penetration can be fundamentally prevented because there is no conductor or metal that is inserted from the outside to the inner space. You can make a thermometer. In order to transmit a signal while the switching circuit 410 and the control module 500 are not directly connected, a signal generated by the switching circuit 410 is transmitted wirelessly and the control module 500 receives it. There is a way to do it, but in that case, the number of parts increases, which increases the cost and the possibility of malfunction, etc. is high, and there is a problem in that waterproofing of the band 300 part must also be strengthened. However, the wearable smart thermometer according to the present invention provides a method in which the control module 500 can grasp the state of the switching circuit of the band 300 without transmitting a wireless signal.

To this end, in the present invention, as shown in FIG. 12 , on both sides of the main body 100, both ends of the main body 100 are fitted to one end of the first band 300a or the second band 300b, respectively. ) It is preferable to include a coupling shaft 120 made of metal to be coupled. And in the portion where the first band 300a or the second band 300b is fitted to the coupling shaft 120, the secondary side coil within the first band 300a or the second band 300b ( It is preferable that the coupling shaft 120 is formed while being wrapped around the coupling shaft 120 , and both ends of the secondary side coil 450 are electrically connected to the switching circuit 410 . And it is preferable that the C-shaped iron cores 460 are included in both sides of the main body 100 , respectively, and the C-shaped open part faces the band 300 . In addition, it is preferable that a primary side coil 470 electrically connected to the control module 500 is wound around the center of the C-shaped iron core 460 , and both ends of the C-shaped iron core 460 are connected to the coupling shaft 120 . It is preferable that air gaps 461 are respectively formed between both ends of the C-shaped iron core 460 and both ends of the coupling shaft 120 .

When such a connection is made, the circuit as shown in FIG. 13 is completed. As shown in FIG. 13 , both ends of the main body wiring 430 drawn from the left side of the control module 500 are the primary coil 470 . connected to both ends of On the other hand, both ends of the secondary side coil 450 are connected to the switching circuit 410 wired in the first band 300a. Accordingly, the primary side coil 470 and the secondary side coil 450 are coupled by impedance coupling. And the coupling protrusion 310 is connected to both ends of the switching circuit 410 wired in the first band 300a, and the coupling protrusion 310 is connected through the connecting line 314 inside, In the first state and the second state, the switching circuit 410 of the first band 300a connected to the secondary side coil 450 is in a connected state, and in the third state, the locking cap 312 is Since the connection line 314 included in the coupling protrusion 310 is cut while being separated, the switching circuit 410 of the first band 300a is in an open state.

In addition, both ends of the main body wiring 430 drawn out from the right side of the control module 500 are also connected to both ends of the primary side coil 470 . In addition, both ends of the secondary side coil 450 are connected to the switching circuit 410 wired in the second band 300b. Accordingly, the primary side coil 470 and the secondary side coil 450 connected to the right side of the control module 500 are also coupled by impedance coupling. A plurality of coupling rings 320 are connected in parallel to both ends of the switching circuit 410 wired in the second band 300b, and the pair of electrodes 322 are connected to the inner peripheral surface of each coupling ring 320 . ) exists in an open state, so in the first state, the switching circuit 410 of the second band 300b connected to the primary side coil 470 is in an open state, and in the second state, the coupling ring ( Since the coupling protrusion 310 is fitted to 320 and the pair of electrodes 322 are connected through the conductor strip 313 included in the coupling protrusion 310, it is connected to the primary coil 470. The switching circuit 410 of the second band 300b is in a connected state, and in the third state, the coupling protrusion 310 is out of the coupling ring 320, so the pair of electrodes 322 ) exists in an open state, so the switching circuit 410 of the second band 300b connected to the primary side coil 470 is in an open state.

On the other hand, as described above, each of the primary side coil 470 and the secondary side coil 450 connected to both sides of the control module 500 are coupled by impedance coupling. Therefore, the circuit as shown in Fig. 14(a) or Fig. 14(c) is constituted, and Fig. 14(a) and Fig. 14(c) show an impedance-coupled state through a coil having an inductance value. a) may be represented by an equivalent circuit as in FIG. 14(b), and FIG. 14(c) may be represented by an equivalent circuit as in FIG. 14(d). Therefore, when both ends of the secondary side coil 450 are connected as shown in FIG. 14(a), the total impedance (Z) measured by the control module 500 is 1 as shown in FIG. 14(b). The impedance (Zp=Rp+jXp) of the secondary coil 470 and the impedance (Zs=Rs+jXs) of the secondary coil 450 include the primary coil 470 and the secondary coil 450 . The sum of the squared turns ratio is the total impedance (Z = (Rp+a ² Rs) + j(Xp + a ² Xs).

However, when both ends of the secondary side coil 450 are open as shown in FIG. 14(c) , the total impedance Z measured by the control module 500 is the impedance of the secondary side coil 450 . Since (Zs=Rs+jXs) is in an open state, it is ignored, so the impedance (Zp=Rp+jXp) of the primary side coil 470 becomes the total impedance (Z=Rp+jXp). Accordingly, the control module 500 detects the change value of the total impedance (Z) to determine whether the switching circuit 410 is in an open state or a connected state. ) is determined as a connected state, and an open state is determined for the switching circuit 410 having a low overall impedance (Z) value.

On the other hand, the primary side coil 470 is wound around the C-shaped iron core 460, the secondary side coil 450 is wound around the coupling shaft 120, both ends of the U-shaped core 460 and the coupling shaft ( 120) is opposite to each other with the air gap 461 therebetween, so the magnetic flux generated by the current flowing in the primary coil 470 or the induced current flowing in the secondary coil 450 is the U-shaped iron core 460, It flows through the air gap 461 and the coupling shaft 120, thereby smoothly maintaining impedance coupling between the primary side coil 470 and the secondary side coil 450, while the U-shaped iron core 460. Since there is a gap 461 between the coupling shaft 120 and the C-shaped iron core 460 and the coupling shaft 120, although the magnetic resistance to the magnetic flux flowing through the gap 461 is somewhat increased, Since it is not in this connected state, it is possible to prevent deterioration of the waterproof function of the main body 100 .

Although the present invention has been described with the various examples described above, the present invention is not necessarily limited to these examples, and various modifications may be made within the scope without departing from the technical spirit of the present invention. Therefore, the examples disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these examples. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10 Your body (wrist or ankle)
100 body
110 Connection 120 Coupling Shaft
121 Conductor 122 Insulation
200 infrared temperature sensor
210 sensor lens 211 viewing angle
230 Fresnel lens 240 aperture
241 Edge (incision) 243 Measuring area
250 Air tube 251 Annular mating groove
252 Internal Space 290 Board
300 bands
300a first band 300b second band
310 Joint protrusion 311 Locking pillar
312 Clamping cap 313 Conductive strip
314 connecting wire 315 core wire
316 sheath 320 coupling ring
322 pair of electrodes
410 switching circuit
420 brush 430 main body wiring
450 Secondary coil 460 U-shaped iron core
461 air gap 470 primary coil
500 control module
600 light sensor

Claims (9)

A wearable smart thermometer that measures the user's body temperature while worn on the user's wrist or ankle and transmits it to a smart device or receiver through IoT communication,
a body capable of measuring the user's body temperature and transmitting it to the smart device or the receiving device; and
and a band connected to both sides of the main body so that the main body can be worn on the user's wrist or ankle.
The body is
- An opening formed in a circle on the side that comes into contact with the user's skin surface when worn;
- An infrared body temperature sensor that is fixed from the inside of the main body toward the opening and measures the skin surface temperature of the user through the opening;
- a Fresnel lens attached to the inner surface of the body to close the opening, and
- a control module connected to the infrared body temperature sensor to control the operation of the infrared body temperature sensor, and to transmit the measured value of the infrared body temperature sensor to the smart device or the receiving device;
The band is
- Divided into a first band and a second band, each end is coupled to both sides of the main body, and the opposite end is filled while wrapping the user's wrist or ankle by being coupled to each other,
- Each of the first band and the second band includes a switching circuit connected to the control module or a switching circuit connected to a secondary coil that is impedance-coupled to the control module,
-- Before the user wears the smart thermometer, in a first state in which the first band and the second band are not coupled to each other, the switching circuit included in the first band is in a connected state, and the second band The switching circuit included in the band is in an open state,
-- In the second state in which the first band and the second band are coupled to each other because the user is wearing the smart thermometer, the switching circuits included in the first band and the second band are all connected. become,
-- Switching included in the first band and the second band in the third state in which the first band and the second band are separated from each other because the user puts on the smart thermometer and then takes it off again All circuits are open
The control module is
- By determining whether the switching circuit included in the first band and the second band is in an open state or a connected state, it is possible to determine whether the first state, the second state, or the third state, ,
- When the state is changed to the second state or the third state, the result of the state change is transmitted to the smart device or the receiving device,
The smart device or the receiving device,
- Wearable smart thermometer, characterized in that it operates by reflecting the measurement value received from the control module and the result of the state change delete delete delete delete According to claim 1,
A coupling means for coupling the first band and the second band to the end of the first band and the second band is included, respectively.
The coupling means included in the first band, while maintaining the switching circuit in a connected state, makes the switching circuit open when the first band and the second band are coupled and separated,
The coupling means included in the second band maintains the switching circuit in an open state, and when coupling the first band and the second band, makes the switching circuit into a connected state, and the first band and the When the second band is separated again, the switching circuit is made in an open state,
Wearable smart thermometer, characterized in that when the coupling means included in the first band and the second band, respectively, are coupled to each other and then separated, they cannot be coupled again. 7. The method of claim 6,
The coupling means included in the first band is a coupling protrusion,
- A lower end comprising a locking post coupled to the first band and a locking cap coupled to the upper end of the locking post,
- The locking cap is a mushroom head-shaped contractible elastic material, and has a stepped portion having a larger diameter than that of the locking pole at a portion coupled to the upper end of the locking pillar,
- The locking pole includes a conductor band that surrounds the outer circumferential surface with a certain width,
- A connecting line for making the switching circuit into a connected state is wired in the locking pillar and the locking cap,
The coupling means included in the second band is an annular column-shaped coupling ring into which the coupling protrusion can be fitted,
- A pair of electrodes connected to the switching circuit is formed on the inner circumferential surface,
- The diameter of the inner circumferential surface is smaller than the diameter of the stepped portion of the locking cap,
When the coupling protrusion is fitted to the coupling ring,
- The stepped portion of the locking cap is caught on the upper end of the coupling ring, so that the coupling state of the first band and the second band is maintained,
- The pair of electrodes is connected through the conductor strip of the locking pole,
When a force is applied to the first band and the second band in a direction to separate them from each other, and the coupling protrusion is removed from the coupling ring, the step portion of the locking cap is caught on the upper end of the coupling ring so that the locking cap is separated from the locking pole. To be separated, the locking cap is a material that can be cut when a certain tensile force is applied,
Wearable smart thermometer, characterized in that the connection line is made of a structure or material that can be cut when a certain tensile force is applied so that the connection line can be cut when the locking cap is separated from the locking pillar. The method of claim 1
On both sides of the main body, the first band or the second band includes a coupling shaft having both ends coupled to the main body in a state of being fitted to one end, respectively,
Conductive parts are formed on both sides of the coupling shaft, and an insulating part for insulating the conductor parts from each other is formed in the middle,
Among the conductor parts,
- The part inserted into the main body is electrically connected to the control module,
- A wearable smart thermometer, characterized in that the portion fitted to the first band or the second band is electrically connected to the switching circuit The method of claim 1
On both sides of the main body, the first band or the second band includes a metal coupling shaft, both ends of which are coupled to the main body in a state of being fitted to one end, respectively,
In a portion where the first band or the second band is fitted to the coupling shaft, the secondary coil is formed while winding the coupling shaft in the first band or the second band,
Both ends of the secondary coil are electrically connected to the switching circuit,
Inside both sides of the body, a U-shaped iron core is included, respectively,
A primary side coil electrically connected to the control module is wound around the center of the C-shaped iron core, and both ends of the C-shaped iron core face both ends of the coupling shaft, and a gap is formed between both ends of the C-shaped core and both ends of the coupling shaft, respectively. Wearable smart thermometer characterized in that it is formed

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