KR20180061996A - Wrist watch - Google Patents

Abstract

The wristwatch according to an embodiment of the present invention is equipped with a non-contact sensor unit such as a thermopile sensor for judging whether the wrist is worn and measuring the temperature of the wrist.

Description

Wrist Watch {Wrist watch}

The present invention relates to a wristwatch, and more particularly, to a wristwatch capable of measuring temperature.

The wristwatch is a portable device having only simple functions such as a time display function and an alarm function. Recently, a variety of advanced watches having various functions have appeared.

Korean Patent Publication No. 10-2003-0075791 (September 26, 2003)

The present invention provides a wristwatch capable of accurately measuring the temperature even when the contact with the wrist is incomplete. However, these problems are exemplary and do not limit the scope of the present invention.

A wristwatch according to one aspect of the present invention is equipped with a non-contact sensor unit for judging whether or not the wrist is worn and measuring the temperature of the wrist.

In the wristwatch, the non-contact sensor unit may include a thermopile sensor.

In the wristwatch, the non-contact sensor unit may be mounted on the rear side which is the opposite side of the front side for displaying time.

In the wristwatch, the rear surface may include a convex portion and a concave portion that form a step, and the non-contact sensor portion may be mounted at a position corresponding to the concave portion, not the convex portion.

The wristwatch is interposed between the rear surface and the non-contact sensor unit and shields a Near Infra-Red having a wavelength of 0.78 to 2.5 탆 and a Long Wave Infrared (IR) wave having a wavelength of 5 to 14 탆, Red) through the filter portion.

According to an embodiment of the present invention as described above, a wristwatch having a high temperature measurement speed and capable of accurate temperature measurement even when the contact with the wrist is incomplete can be realized. Of course, the scope of the present invention is not limited by these effects.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram schematically illustrating a part of a wristwatch according to an embodiment of the present invention; FIG.
2 is a diagram illustrating a configuration of a wristwatch according to a comparative example of the present invention.
FIG. 3 is a graph showing a temperature profile measured immediately after wearing a wrist watch according to an embodiment of the present invention and a comparative example.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, Is provided to fully inform the user. Also, for convenience of explanation, the components may be exaggerated or reduced in size.

FIG. 1 is a schematic diagram illustrating a part of a wristwatch according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating a configuration of a wristwatch according to a comparative example of the present invention.

Referring to FIG. 1, a wristwatch 100 according to an embodiment of the present invention is mounted with a non-contact sensor unit 120 for determining whether or not the wrist W is worn and measuring the temperature of the wrist W.

The non-contact sensor unit 120 may include a non-contact temperature sensor unit. The non-contact temperature sensor unit may include an infrared sensor capable of remotely measuring thermal information radiated from the wrist W. For example, the non-contact temperature sensor portion may include a thermopile sensor. The thermopile sensor can sense the amount of infrared radiation emitted from the wrist (W) statically and dynamically. As the non-contact sensor unit 120, the thermopile sensor can include a plurality of thermocouples connected to each other in order to detect a small temperature without self-heating and to detect infrared rays. At this time, one thermocouple may include a contact structure of a p-type thermoelectric material and an n-type thermoelectric material. Accordingly, the thermopile sensor can be used to accurately and quickly detect the thermal information radiated from the wrist W at low cost. The ROIC element 140 may be disposed on the side of the non-contact sensor unit 120.

The thermopile sensor as the non-contact sensor unit 120 may include a device arrangement unit 120a in which the plurality of thermocouples are formed and a column unit 120b that supports the device arrangement unit 120a. Although not shown in the drawings, the ROIC element 140 and the column portion 120b may be mounted or disposed on a substrate (e.g., a PCB substrate).

The body part 110 of the wrist watch may include a front surface 112 on which a display part for displaying time or other information is located and a rear surface 114 at least part of which is in contact with the wrist W. [ The non-contact sensor unit 120 according to an embodiment of the present invention may be disposed on the rear surface 114 side. Furthermore, the element placement unit 120a in which the plurality of thermocouples described above are formed in the non-contact sensor unit 120 may be disposed closer to the rear surface 114 than the front surface 112. This is because the rear surface 114 is positioned closer to the wrist W than the front surface 112 is. The back surface 114 of the wristwatch may include a convex portion 114b and a concave portion 114a that form a step. In this case, the noncontact sensor portion 120 is not a convex portion 114b, And may be disposed at a position corresponding to the portion 114a. At least a part of the concave portion 114a may be formed of glass or a high density polyethylene (HDPE) material through which infrared rays can pass. The above-described configurations can contribute to a quick and accurate measurement of the temperature of the wrist W by minimizing the distance between the wrist W and the non-contact sensor unit 120 and minimizing the interposition of unnecessary materials.

Meanwhile, the wristwatch 100 according to the modified embodiment of the present invention is interposed between the rear surface 114 and the non-contact sensor unit 120, and shields near infrared rays (Near Infra-Red) having a wavelength of 0.78 μm to 2.5 μm And a filter unit 160 for passing a long wave infra-red having a wavelength of 5 mu m to 14 mu m. Since the infrared ray emitted from the human body has a wavelength range of 6 to 14 占 퐉, the filter unit 160 blocks light having a wavelength range of an unnecessary noise region, thereby measuring the temperature of the wrist W more accurately .

Referring to FIG. 2, the wristwatch 10 according to the comparative example of the present invention may include a contact sensor 12 and a thermistor 14 that contact the wrist W. Referring to FIG. The contact sensor 12 is a capacitive touch sensor for detecting whether or not the watch is worn and the thermistor 14 is a contact type temperature sensor for measuring the temperature of the wrist W. The thermistor 14 has a disadvantage in that the measurement speed is slow since the temperature can be substantially measured only after the heat is transferred to reach the thermal equilibrium in the state where the thermistor 14 is in contact with the wrist W. Furthermore, since the contact type sensor is not a non-contact type sensor, it is difficult to accurately measure the temperature when the contact with the wrist W is incomplete.

In contrast, the wristwatch 100 according to an embodiment of the present invention, which includes the non-contact sensor unit 120 and the own temperature sensor, can immediately determine whether or not the wristwatch is worn so that a touch sensor is unnecessary, ) Can be measured immediately, so that the reaction speed is faster than the temperature measurement by the thermistor. By measuring the temperature of the wrist (W), it is possible to judge the low temperature, the solid temperature, the heat generation or the like. In addition, accurate temperature measurement is possible even when the watch is frequently attached and detached, and accurate temperature measurement is possible even when the contact with the wrist (W) is incomplete.

FIG. 3 is a graph showing a temperature profile measured immediately after wearing a wrist watch according to an embodiment of the present invention and a comparative example.

Referring to FIG. 3, when the temperature is measured after wearing the wristwatch according to the embodiment of the present invention, since the noncontact temperature sensor is used, it can be confirmed that the wrist temperature can be measured immediately after wearing the wristwatch. On the other hand, in the case of measuring the temperature after the wristwatch according to the comparative example of the present invention is measured (B), since the thermistor is used, the temperature is continuously increased to take time for the body temperature measurement to be inaccurate and stabilized Can be confirmed.

The wristwatch according to one embodiment of the present invention has been described. However, it is to be understood that the technical idea of the present invention is not limited to a wristwatch but can be extended to a non-contact temperature measuring device capable of measuring the temperature of the wrist.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, the true scope of the present invention can be determined by the technical idea of the appended claims.

100: Wrist Watch
112: Front
114: rear
120: Non-contact sensor unit
160:
W: Wrist

Claims (5)

A wristwatch equipped with a non-contact sensor for measuring the wrist and determining the temperature of the wrist. The method according to claim 1,
Wherein the non-contact sensor unit includes a thermopile sensor. The method according to claim 1,
And the noncontact sensor unit is mounted on the rear side which is the opposite side of the front side for displaying the time. The method of claim 3,
Wherein the rear surface includes convex portions and concave portions forming stepped portions, wherein the non-contact sensor portion is mounted at a position corresponding to the concave portion, not the convex portion. The method of claim 3,
A near infrared ray having a wavelength of 0.78 탆 to 2.5 탆 is intercepted and a long wave infrared ray having a wavelength of 5 탆 to 14 탆 is passed through between the rear surface and the non- And a filter unit.

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