KR20180023198A - Body temperature measurement device and method thereof - Google Patents

Abstract

Disclosed are an apparatus and a method for measuring a body temperature. The apparatus for measuring a body temperature comprises: a body temperature measuring unit including an infrared receiving unit for receiving infrared rays radiated from the body of a user, and a body temperature correction unit for correcting a body temperature; an iris recognition unit for recognizing an iris of the user; and an operating mode determination unit for determining whether an operating mode of the body temperature measuring unit corresponds to a dedicated mode operated by a user′s operation for measuring the body temperature or an interlocked mode operated by interlocking with recognition of the iris by the iris recognition unit. The infrared receiving unit receives infrared rays radiated in a first region including at least a part of the forehead of the user when the determined operating mode is the dedicated mode, and receives infrared rays radiated in a second region, which includes the first region and is wider than the first region, when the determined operating mode is the interlocked mode. The body temperature correction unit corrects the body temperature by a dedicated mode correction algorithm when the determined operating mode is the dedicated mode, and corrects the body temperature by an interlocked mode correction algorithm, distinguished from the dedicated mode correction algorithm, when the determined operating mode is the interlocked mode.

Description

TECHNICAL FIELD [0001] The present invention relates to a body temperature measuring apparatus and a body temperature measuring method,

The present invention relates to a body temperature measuring apparatus and a body temperature measuring method, and more particularly, to a non-contact body temperature measuring apparatus for receiving infrared rays emitted from a body and measuring the body temperature, and a body temperature measuring method using the same.

Recently, smart electronic devices including wearable electronic devices that can be worn on the body such as smart phones, tablet computers, smart watches, and the like are widely spread. Such a smart electronic device is evolving as a device capable of performing a multifunctional function such as multimedia, game, mobile shopping, and financial as well as mobile communication functions such as telephone and text message delivery.

As interest in everyday health care increases, smart electronic devices are equipped with healthcare functions that measure and manage various users' health information. Recently, smart electronic devices are equipped with sensors that can measure heart rate and oxygen saturation of a user. It is also discussed that a smart electronic device is equipped with a body temperature sensor capable of measuring the body temperature in a non-contact manner using infrared rays.

For such healthcare functions, data measured repeatedly over a period of time rather than one-time measured data is more useful. For example, by using repeatedly measured heart rate data over several hours or more, it is possible to grasp a change pattern and lifestyle of a user's heartbeat, and customized health care advice can be provided accordingly.

However, in order to measure such healthcare data, the user must perform operations and operations of smart electronic devices for measurement. Such a manipulation and operation can be relatively easily performed in a wearable electronic device such as a smart watch worn on the wrist, but in a hand-held electronic device such as a smart phone, such manipulation and operation are periodically and repeatedly performed It can be troublesome to the user.

Therefore, there is a need for an apparatus and method that can periodically measure relatively accurate healthcare data while minimizing the hassle the user is feeling for measuring the healthcare data.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a body temperature measuring device and a body temperature measuring method capable of measuring body temperature in conjunction with operation of another function without any user's operation. Specifically, there is provided a body temperature measuring device and a body temperature measuring method capable of measuring a body temperature in conjunction with iris recognition by a device.

Another object of the present invention is to provide a body temperature measuring apparatus and a body temperature measuring method capable of correcting the body temperature relatively accurately in measuring the body temperature in conjunction with operation of other functions.

According to an aspect of the present invention, there is provided a body temperature measuring apparatus including a body temperature measuring unit including an infrared ray receiving unit for receiving infrared rays radiated from a user's body and a body temperature correcting unit for correcting body temperature, And an operation mode determination unit for determining whether the body temperature measuring unit corresponds to a dedicated mode in which the user operates the body temperature measuring unit or an interlocking mode in which the iris recognition unit operates in association with recognition of the iris, The infrared ray receiving unit receives the infrared ray emitted from the first region including at least a part of the forehead of the user when the determined operation mode is the exclusive mode and includes the first region when the determined operation mode is the interlocking mode, 2 region, and the body temperature correcting unit corrects the infrared light emitted from the region Mode, the body temperature is corrected by the correction algorithm for the dedicated mode. If the determined operation mode is the interlock mode, the body temperature is corrected by the correction algorithm for the interlock mode, which is different from the correction algorithm for the exclusive mode.

In one embodiment of the present invention, the iris recognition unit may include an infrared ray irradiation unit for irradiating infrared rays to the iris and an iris image pickup unit for imaging the iris in an infrared band.

In one embodiment of the present invention, the receiving angle of the infrared ray receiving unit may be smaller than the angle of view of the iris image sensing unit.

In one embodiment of the present invention, the infrared ray receiving unit may receive infrared rays when the infrared ray irradiating unit does not irradiate infrared rays.

In one embodiment of the present invention, the infrared ray received by the infrared ray receiving unit and the infrared ray irradiated by the infrared ray irradiating unit may correspond to different wavelength bands.

In one embodiment of the present invention, the iris image capturing section generates an image for correction by imaging a portion including the second region when the infrared light-receiving section is operated in the interlocking mode, To calculate the compensation value.

In one embodiment of the present invention, calculating the compensation value using the correction image may include separating the image of the second region from the correction image.

In one embodiment of the present invention, the infrared ray receiving unit, the infrared ray irradiating unit, and the iris capturing unit may be arranged on the same surface in the body temperature measuring apparatus.

In one embodiment of the present invention, the apparatus further includes a camera section for capturing an object in a visible light band,

The camera unit may generate a correction image by capturing a portion including the second area when the infrared light-receiving unit operates in the interlocking mode, and the correction algorithm for the interlocking mode may be to calculate the compensation value using the correction image .

In one embodiment of the present invention, the receiving angle of the infrared ray receiving unit may be smaller than the angle of view of the camera unit.

In one embodiment of the present invention, calculating the compensation value using the correction image may include separating the image of the second region from the correction image.

In an embodiment of the present invention, the infrared ray receiving unit and the camera unit may be disposed on the same side of the body temperature measuring apparatus.

According to another aspect of the present invention, there is provided a body temperature measuring method including a body temperature measuring unit including an infrared ray receiving unit for receiving infrared rays radiated from a user's body and a body temperature correcting unit for correcting body temperature, And an operation mode determination unit for determining whether the body temperature measuring unit is in a dedicated mode in which the user operates the body temperature measuring operation or an interlocking mode in which the iris recognition unit operates in association with recognition of the iris A method for measuring body temperature of a body temperature measuring apparatus, comprising the steps of: determining an operation mode by the operation mode determining unit; measuring a body temperature of the infrared ray receiving unit receiving infrared rays and correcting the body temperature of the body temperature correcting unit according to the determined operation mode; And a data storing step of storing the body temperature data, Wherein the infrared light receiving unit receives infrared rays radiated from a first region including at least a part of the user's forehead if the determined operation mode is the dedicated mode and that the body temperature correction unit corrects the body temperature Wherein the infrared light receiving unit receives infrared rays including the first region but emitted from a wider second region when the determined operation mode is the interlocking mode, And correcting the body temperature by a correction algorithm for an interlocking mode which is different from an algorithm.

In one embodiment of the present invention, the iris recognition unit includes an infrared ray irradiation unit for irradiating infrared rays to the iris and an iris image pickup unit for imaging the iris in an infrared band, and the step of correcting the body temperature in the interlocking mode comprises: The iris image pickup section may image the portion including the second region to generate a correction image, and calculating the compensation value using the correction image.

In one embodiment of the present invention, calculating the compensation value may include separating the image of the second region from the correction image.

In one embodiment of the present invention, the body temperature measuring apparatus further includes a camera section for capturing an image of a subject in a visible light band, and the step of correcting the body temperature in the interlocking mode includes: And generating a correction image, and calculating a compensation value using the correction image.

In one embodiment of the present invention, calculating the compensation value may include separating the image of the second region from the correction image.

According to the body temperature measuring device and the body temperature measuring method according to an embodiment of the present invention, the body temperature of the user can be measured by being interlocked with the device recognizing the iris without any additional operation of the user.

In addition, according to the body temperature measuring apparatus and the body temperature measuring method according to the embodiment of the present invention, when the apparatus measures the body temperature of the user by interlocking with the recognition of the iris, the body temperature can be relatively accurately measured .

1 is a view of a body temperature measuring apparatus according to an embodiment of the present invention.
2 is a block diagram for explaining a body temperature measuring apparatus according to an embodiment of the present invention.
FIG. 3 is a diagram for explaining that a body temperature measuring apparatus according to an embodiment of the present invention operates in a dedicated mode.
4 is a view for explaining that the body temperature measuring apparatus according to the embodiment of the present invention operates in an interlocking mode.
5 shows an exemplary correction image in the interlock mode of the body temperature measuring device according to the embodiment of the present invention.
6 is a view of a body temperature measuring apparatus according to another embodiment of the present invention.
7 is a block diagram for explaining a body temperature measuring apparatus according to another embodiment of the present invention.
8 is a view for explaining that the body temperature measuring apparatus according to another embodiment of the present invention operates in the interlocking mode.
9 is a flowchart for explaining a body temperature measuring method according to an embodiment of the present invention.
10 is a flow chart for explaining the temperature correction step in the interlocking mode in the body temperature measuring method according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is judged that it is possible to make the gist of the present invention obscure by adding a detailed description of a technique or configuration already known in the field, it is omitted from the detailed description. In addition, terms used in the present specification are terms used to appropriately express the embodiments of the present invention, which may vary depending on the person or custom in the relevant field. Therefore, the definitions of these terms should be based on the contents throughout this specification.

Hereinafter, a body temperature measuring apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5 attached hereto.

1 is a view of a body temperature measuring apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the body temperature measuring apparatus 100 of the present invention may be a dedicated apparatus for measuring the body temperature to which the iris recognition function is added, an electronic apparatus having a complex function, Lt; / RTI > For example, an electronic device that performs a complex function may be a wearable electronic device that can be worn on the body such as a mobile communication terminal, a smart phone, a tablet computer, a smart watch, smart glasses, a digital multimedia player, a navigation device, Computers, and the like. 1, the body temperature measuring apparatus 100 of the present invention is implemented in the form of a conventional smartphone, but the present invention is not limited thereto.

2 is a block diagram for explaining a body temperature measuring apparatus according to an embodiment of the present invention.

2, the body temperature measuring apparatus 100 of the present invention includes a body temperature measuring unit 110, an iris recognition unit 120, and an operation mode determination unit 130.

The body temperature measuring unit 110 receives the infrared rays radiated from the user's body and measures the body temperature. The body temperature measuring unit 110 includes an infrared ray receiving unit 111 and a body temperature correcting unit 112.

The infrared ray receiving unit 111 is disposed to be exposed to the outside through one surface of the body temperature measuring apparatus 100. For example, when the body temperature measuring apparatus 100 is implemented in the form of a smartphone, the infrared ray receiving unit 111 is disposed to be exposed to the outside through a front surface of the body temperature measuring apparatus 100 where the main display 150 is disposed . Therefore, the infrared ray receiving unit 111 can receive infrared rays irradiated in a direction in which one side faces.

The infrared ray receiving section 111 includes a lens section and a light receiving element. The lens unit refracts infrared rays incident from the outside, so that infrared rays are focused on the light receiving element. The lens portion may be formed of an optical lens system including at least one lens. The lens portion has a constant refractive index, so that the incident infrared rays can be refracted to a predetermined degree.

The light reception angle [theta] 1 of the infrared ray receiving portion 111 can be determined according to the refractive index of the lens. When the receiving angle? 1 of the infrared ray receiving section 111 is large, even if the object to be measured is located at the same distance in the infrared ray receiving section 111, infrared rays radiated in a relatively larger area are sensed. When the receiving angle? 1 of the infrared ray receiving unit 111 is small, only infrared rays radiated in a specific narrow area can be detected.

The light receiving element is a photoelectric conversion element that receives infrared rays refracted through a lens and converts the infrared rays into an electric signal. The light receiving element may be formed of a photo diode. The light receiving element may be formed by being sensitive to light in the infrared wavelength range (about 780 nm to 1 mm). The light receiving element can generate an electric signal differently according to the intensity of the infrared ray to be received.

The infrared ray receiving unit 111 may further include an infrared ray passing filter. The infrared pass filter is disposed on the front side of the light receiving element. Although the infrared pass filter is generally disposed between the light receiving element and the lens unit, it may be provided at the front end of the lens unit in some cases. The infrared pass filter is an optical filter that selectively passes infrared rays in a predetermined wavelength range. In some cases, the body temperature measuring unit 110 can measure the body temperature by selectively receiving light corresponding to a specific part of the infrared band, instead of measuring the temperature by receiving all light corresponding to the infrared band. In this case, the infrared pass filter may be designed to pass only infrared rays corresponding to a predetermined band.

The infrared ray receiving section 111 may further include a cover glass. The cover glass is provided at the outermost portion of the body temperature measuring apparatus 100 to separate the inside and the outside of the body temperature measuring apparatus 100 from each other and shut off. The infrared ray receiving portion 111 is located inside the cover glass, so that it can be protected from an external impact or environmental change, and foreign matter can be prevented from entering. It is preferable that the cover glass has a high light transmittance with respect to an infrared wavelength band in which the light receiving element receives light.

The body temperature correction unit 112 corrects the data so that the body temperature is derived from the data of the intensity of infrared rays detected by the infrared ray receiving unit 111. [ The body temperature correction unit 112 calculates a compensation value for correcting the body temperature using a predetermined correction algorithm. The body temperature correction unit 112 may be a processor that can be computed and processed by a correction algorithm. For example, the body temperature correction unit 112 may be configured as an ASIC (Application Specific Integrated Circuit) integrated with the infrared light receiving unit 111 as a single module. The body temperature correction unit 112 may be implemented by an application processor (AP) that performs a complex function of the body temperature measurement apparatus 100. The body temperature correction unit 112 may be implemented by a combination of the ASIC and the AP.

The body temperature correction unit 112 corrects the body temperature by various correction algorithms. The body temperature correction unit 112 may correct the body temperature by sequentially applying two or more correction algorithms. In addition, the body temperature correction unit 112 can correct the body temperature by selecting and applying a correction algorithm that is appropriate to the situation.

The correction algorithm applied by the body temperature correction unit 112 may include various steps. For example, there are a step of converting from data generated by the infrared light-receiving section 111 to temperature data, a step of correcting the temperature in consideration of the temperature of the infrared light-receiving section 111, a step of correcting the temperature in consideration of the emissivity of the object to be measured , Correcting the temperature by averaging the data that varies with time, correcting the temperature of the core body temperature from the skin temperature, and the like.

The correction algorithm applied by the body temperature correction unit 112 may include various input variables. For example, the correction algorithm may be used as an input variable such as the temperature of the infrared ray receiving unit 111, the temperature of the body temperature measuring apparatus 100, the measurement mode of the body temperature measuring unit 110, and the operation mode of the body temperature measuring unit 110 have.

The body temperature correcting unit 112 may select and apply different correction algorithms depending on whether the operation mode of the body temperature measuring unit 110 is a dedicated mode or an interlocking mode. This will be described in more detail below.

The iris recognition unit 120 recognizes a unique pattern of a user's iris. The iris recognition unit 120 includes an infrared ray irradiation unit 121 and an iris image pickup unit 122.

The infrared ray irradiating unit 121 and the iris image pickup unit 122 are both exposed to the outside through one surface of the body temperature measuring apparatus 100. It is preferable that the infrared ray irradiating unit 121 and the iris image pickup unit 122 are disposed on the same plane as the infrared ray receiving unit 111 described above. For example, when the body temperature measuring apparatus 100 is implemented in the form of a smartphone, the infrared ray irradiating unit 121 and the iris image sensing unit 122 may be disposed on the front surface of the body temperature measuring apparatus 100 on which the main display 150 is disposed As shown in FIG. In this case, when the user is looking at the front face of the body temperature measuring apparatus 100, it is possible to recognize the iris pattern by imaging the iris.

The infrared ray irradiating unit 121 comprises an infrared ray emitting unit for irradiating infrared rays to the iris. When the user uses the body temperature measuring apparatus 100 in a usual manner, the infrared ray irradiating unit 121 irradiates the infrared ray to the portion where the iris is located and the vicinity thereof. It is preferable that the light emitted by the infrared ray irradiating unit 121 does not include the light of the visible light band or is hardly included, so that the user can not visually recognize whether or not the light is irradiated. The infrared ray irradiating unit 121 detects the relative position of the iris relative to the body temperature measuring apparatus 100, such as the controller of the body temperature measuring apparatus 100, and the size of the iris, Lt; / RTI >

The iris image pickup section 122 is configured to pick up the iris in the infrared band. The iris image pickup section 122 may be configured as an infrared ray image pickup apparatus. It is preferable that the iris image pickup section 122 can detect the infrared ray irradiated by the infrared ray irradiating section 121 and reflect the infrared ray. The iris image pickup section 122 includes a lens section, an infrared ray passing filter, and an image pickup device.

The lens unit refracts the infrared rays reflected from the iris to focus the imaging device. The lens portion may be formed of a fixed focus type or an auto focus type. When the lens portion is formed in the fix-de-focus type, it is preferable that the lens portion is designed such that the iris portion is focused on the imaging element in a case where the user normally uses it.

The infrared pass filter is an optical filter that selectively passes infrared rays in a predetermined wavelength range. The infrared pass filter is disposed on the front side of the image pickup device. The infrared pass filter is generally disposed between the image pickup element and the lens unit, but it may be provided at the front end of the lens unit as the case may be.

The iris image pickup unit 122 can recognize iris by selectively sensing light corresponding to a specific part of the infrared band, instead of recognizing the iris by sensing all the light corresponding to the infrared band. In this case, the infrared pass filter may be designed to pass only infrared rays corresponding to a predetermined band.

Here, the wavelength band of infrared light sensed when the iris image sensing unit 122 senses the iris and the infrared wavelength band sensed by the infrared light receiver 111 when the body temperature is measured may be different from each other. The pass band of the infrared ray filter of the infrared ray receiving unit 111 may be a different band that does not overlap the wavelength band of the infrared ray irradiated by the infrared ray irradiating unit 121. In this case, when the infrared ray irradiating unit 121 of the iris recognizing unit 120 irradiates the infrared ray to recognize the iris, even if the infrared ray receiving unit 111 of the body temperature measuring unit 110 receives the infrared ray, the infrared ray irradiating unit 121 It may not be influenced by the infrared ray that is investigated.

However, if the wavelength band of the infrared ray detected when the iris image pickup section 122 picks up the iris overlaps the infrared wavelength band to be received when the infrared ray receiving section 111 measures the body temperature, the infrared ray receiving section 111 performs the body temperature measurement It is preferable that no infrared ray is irradiated to the infrared ray irradiating unit 121 when receiving the infrared ray.

The image pickup element is constituted by an image sensor. The image pickup element may be an element having a plurality of pixels and being sensitive to light in the infrared band. It is preferable that the imaging element has a resolution enough to capture an image of the iris and to recognize and analyze an intrinsic pattern of the iris.

The operation mode determination unit 130 is a unit that determines an operation mode related to how the body temperature measurement unit 110 operates. The body temperature measuring unit 110 may operate differently according to the selected operation mode. The operation mode determination unit 130 may determine the operation mode of the body temperature measurement unit 110 according to the operation of the user's body temperature measurement apparatus 100, the change of the setting, the operation of the other components of the body temperature measurement apparatus 100, .

The body temperature measuring unit 110 can operate, for example, by selecting either the dedicated mode or the interlocking mode. The operation of the body temperature measuring unit 110 according to the dedicated mode and the interlocking mode will be described in detail below with reference to FIG. 3 and FIG.

FIG. 3 is a diagram for explaining that a body temperature measuring apparatus according to an embodiment of the present invention operates in a dedicated mode.

The dedicated mode is a case in which the body temperature measuring unit 110 operates by a specific operation by the user of the body temperature measuring apparatus 100 to measure the body temperature. A user can input a command to measure a body temperature by selecting a body temperature measurement menu or the like in the body temperature measuring apparatus 100. [ When the command is input, the operation mode determination unit 130 determines that the operation mode is the dedicated mode.

In the dedicated mode, the body temperature measuring apparatus 100 operates in a state suitable for the body temperature measuring unit 110 to measure an accurate body temperature. It is preferable that the infrared ray receiving unit 111 receives only infrared rays radiated from the first region 210 of the user. Here, the first region 210 may be a portion of the user's body where the artery passes in the vicinity of the epidermis. For example, the first region 210 may be a forehead portion. In the present specification, it is assumed that the first region 210 is the forehead portion.

Referring to FIG. 3, in the dedicated mode, the infrared ray receiving unit 111 operates in a state of being separated from the first region 210 of the user by the appropriate distance distance (a). The body temperature measurement proper separation distance (a) is a separation distance for receiving only infrared rays radiated from the first region 210 by the infrared ray receiving unit 111.

The appropriate distance a to be measured by the body temperature measurement may be varied depending on the receiving angle &thetas; 1 of the infrared ray receiving portion 111. [ Specifically, the smaller the receiving angle? 1 of the infrared ray receiving section 111 is, the longer the appropriate distance a of the body temperature measurement becomes, and the larger the receiving angle? 1 of the infrared ray receiving section 111 becomes, Is shortened. The light reception angle &thetas; 1 of the infrared ray receiving portion 111 does not change, and therefore the appropriate distance distance a for the temperature measurement is a predetermined state.

When the operation mode is determined to be the dedicated mode, the infrared ray receiving unit 111 instructs the display 150 of the body temperature measuring apparatus 100 to maintain a state in which the infrared ray receiving unit 111 is separated from the first region 210 by the appropriate distance A message may be displayed. When the user places the infrared ray receiving unit 111 in the first area 210 by a distance of the body temperature measurement appropriate distance a, the infrared ray receiving unit 111 receives the infrared ray radiated from the first area 210.

The body temperature correction unit 112 selects the correction algorithm for the dedicated mode to correct the body temperature. The correction algorithm for the dedicated mode is an algorithm for correcting the body temperature based on the infrared ray receiving unit 111 receiving the infrared ray radiated from the first region 210. [ The calibrated body temperature can be displayed via the display 150. In addition, the corrected body temperature can be stored in the storage device together with the measured time information.

4 is a view for explaining that the body temperature measuring apparatus according to the embodiment of the present invention operates in an interlocking mode.

The interlocking mode is a case where the body temperature measuring unit 110 operates in conjunction with the iris recognition unit 120 recognizing the iris. According to the interlocking mode, the body temperature measuring unit 110 operates in conjunction with the iris recognition unit 120 recognizing the iris, even if the user does not perform any other operation for measuring the body temperature.

The iris recognition unit 120 recognizes the iris very frequently and repeatedly. In particular, if the body temperature measuring apparatus 100 of the present invention is implemented as a smart electronic device that performs a complex function such as a smart phone, the recognition of the iris is frequently performed for various purposes. For example, in order to unlock a smart electronic device, to enter a secure menu, to execute financial functions such as payment or remittance, and to execute other security-maintained functions, The recognition of the iris is performed. When iris recognition is used as a main security means, a typical user may perform iris recognition several times to several hundred times a day, depending on the user's usage habits.

The body temperature measuring unit 110 measures the body temperature without performing any user operation whenever the iris recognition unit 120 recognizes the iris in the interlocking mode. Since the iris recognition unit 120 recognizes the iris very frequently and repetitively, if the body temperature measurement unit 110 is interlocked with the iris recognition unit 110 every time it recognizes the iris, it can acquire repeated body temperature data of the user . In addition, since the body temperature measuring unit 110 operates in the interlocking mode, the user does not need to perform any other operation for measuring the body temperature, thereby minimizing the user's troublesomeness.

Referring to FIG. 4, in the interlocking mode, the iris image capturing unit 122 operates in a state of being separated from the iris of the user by the appropriate distance b. The iris recognition proper separation distance (b) is a separation distance for picking up an image suitable for iris recognition by the iris imaging unit 122.

Specifically, in order for the iris recognition unit 120 to recognize the iris, the iris must include all of the iris in the image captured by the iris capturing unit 122, and the iris must be captured in an appropriate range of sizes. For this purpose, the iris recognition unit 120 should maintain a state of being separated from the iris of the user by the appropriate distance (b) of iris recognition. Here, the iris recognition proper separation distance (b) can be set to a predetermined range. Since the angle of view 2 of the iris image sensing unit 122 does not change, the iris image capturing unit 122 may determine the appropriate iris recognition distance b. However, if the angle of view 2 is determined, The appropriate recognition distance b is also determined.

If it is determined that the operation mode is the interlocking mode, a message is displayed on the display 150 of the body temperature measuring apparatus 100 instructing the iris image capturing unit 122 to maintain a state of being separated from the iris by the appropriate iris recognition distance b . The iris recognition unit 120 performs iris recognition and the infrared ray receiving unit 111 receives infrared rays when the user places the iris image pickup unit 122 at a distance from the iris by an appropriate iris recognition distance b.

The appropriate iris recognition distance is usually longer than the above-mentioned appropriate distance measurement (a). Accordingly, since the forehead corresponding to the first region 210 is positioned adjacent to the user's face, if the iris recognition unit 120 maintains the iris recognition proper distance b from the iris, The light receiving unit 111 is located in the first region 210 in excess of the proper distance (a) for measuring the body temperature. The infrared light receiving unit 111 includes the first area 210 and the second area 210. The infrared light receiving unit 111 may include a first area 210 and a second area 210. When the infrared light receiving unit 111 is located in the user's first area 210, And receives infrared rays radiated from the light source 220.

As described above, in order to accurately measure the body temperature, the infrared ray receiving unit 111 must receive only infrared rays radiated from the first area 210 of the user. However, in the interlocking mode, the infrared ray receiving unit 111 receives infrared rays including the first area 210 but emitted from the second area 220 which is wider. This can be a factor in decreasing the accuracy of body temperature measurement.

The body temperature correction unit 112 selects a correction algorithm for the interlock mode to correct the body temperature. The correction algorithm for the interlocking mode is distinguished from the correction algorithm for the exclusive mode and can improve the accuracy drop in the body temperature measurement caused by the infrared ray receiving unit 111 receiving the infrared ray radiated from the second region 220.

The correction algorithm for the interlocking mode uses the correction image 160 captured by the upper part of the iris. The iris image capturing unit 122 captures a portion including the second area 220 when the infrared ray receiving unit 111 operates in the interlocking mode to generate the correction image 160. [ The correction image 160 may be one separately captured and generated for the correction algorithm for the interlocking mode, or may use data captured for iris recognition.

Since the angle of view 2 of the iris image sensing unit 122 is wider than the angle of incidence 1 of the infrared ray receiving unit 111, the image captured by the iris image sensing unit 122 includes the light receiving area of the infrared ray receiving unit 111 . Therefore, the second region 220 is included in the correction image 160 captured by the iris capturing unit 122 in the interlocking mode.

Hereinafter, the calculation of the compensation value using the correction image in the correction algorithm for the interlocking mode will be described in detail with reference to FIG.

FIG. 5 illustrates an exemplary correction image 160 in an interlocking mode of a body temperature measuring apparatus 100 according to an embodiment of the present invention.

Referring to FIG. 5, the correction image 160 includes a user's facial image. The body temperature correction unit 112 separates the image 161 of the second region from the correction image 160. [ The image 161 of the second area can be separated from the correcting image 160 by using the difference between the angle of view 2 of the iris image capturing unit 122 and the receiving angle? 1 of the infrared ray receiving unit 111.

The body temperature correction unit 112 may calculate the compensation value by using the separated image of the second region 161 in various ways. For example, the body temperature correction unit 112 can recognize the face in the image 161 of the second area and calculate the compensation value according to the ratio occupied by the face in the image 161 of the second area. In addition, the forehead portion can be recognized in the image 161 of the second region and the compensation value can be calculated according to the ratio of the forehead portion in the image 161 of the second region. In addition, the configuration of the face in the image 161 of the second area can be recognized, and the compensation value can be calculated according to the configuration of the recognized face.

The body temperature correction unit 112 corrects the specific gravity occupied by the first region 210 in the second region 220 and the specific gravity occupied by the second region 220 that is not the first region 210, It is possible to grasp the configuration and correct the error due to this. In this way, the body temperature correction unit 112 can correct the body temperature relatively accurately.

Hereinafter, a body temperature measuring apparatus according to another embodiment of the present invention will be described with reference to FIGS. 6 to 8 attached hereto.

6 is a view of a body temperature measuring apparatus according to another embodiment of the present invention. 7 is a block diagram for explaining a body temperature measuring apparatus according to another embodiment of the present invention.

Referring to FIGS. 6 and 7, the body temperature measuring apparatus 100 of the present embodiment further includes a camera unit 140 in the configuration of the body temperature measuring apparatus 100 described above with reference to FIG. 1 to FIG.

The camera unit 140 is a configuration capable of capturing an image of a subject in a visible light band. The camera unit 140 is disposed to be exposed to the outside through one surface of the body temperature measuring apparatus 100. The camera unit 140 is preferably disposed on the same plane as the infrared ray receiving unit 111. For example, when the body temperature measuring apparatus 100 is implemented in the form of a smartphone, the camera unit 140 is disposed to be exposed to the outside through the front surface of the body temperature measuring apparatus 100 where the main display 150 is disposed . In this case, when the user is looking at the front of the body temperature measuring apparatus 100, the user can take a picture of the face of the user.

8 is a view for explaining that the body temperature measuring apparatus according to another embodiment of the present invention operates in the interlocking mode.

Referring to FIG. 8, in the present embodiment, the camera unit 140 picks up the correction image 160. FIG. Specifically, when the infrared ray receiving unit 111 operates in the interlocking mode, the camera unit 140 captures a portion including the second area 220 to generate the correction image 160. The correction image 160 may be one separately captured and generated for the correction algorithm for the interlocking mode, or may use data captured for iris recognition.

Since the angle of view 3 of the camera unit 140 is wider than the angle of incidence 1 of the infrared ray receiving unit 111, the image captured by the camera unit 140 includes the light receiving area of the infrared ray receiving unit 111 . Therefore, the second area 220 is included in the correction image 160 captured by the camera unit 140 in the interlocking mode.

The correction image 160 includes a face image of the user. The body temperature correction unit 112 separates the image 161 of the second region from the correction image 160. [ The image 161 of the second area can be separated from the correction image 160 by using the difference between the angle of view 3 of the camera section 122 and the receiving angle? 1 of the infrared ray receiving section 111.

The body temperature correction unit 112 may calculate the compensation value by using the separated image of the second region 161 in various ways.

For example, the body temperature correction unit 112 can recognize the face in the image 161 of the second area and calculate the compensation value according to the ratio occupied by the face in the image 161 of the second area. In addition, the forehead portion can be recognized in the image 161 of the second region and the compensation value can be calculated according to the ratio of the forehead portion in the image 161 of the second region. In addition, the configuration of the face in the image 161 of the second area can be recognized, and the compensation value can be calculated according to the configuration of the recognized face.

Hereinafter, a method of measuring the body temperature of the body temperature measuring apparatus will be described with reference to Figs. 9 and 10. Fig. The body temperature measuring method described below relates to a method of measuring a body temperature using the body temperature measuring apparatus described with reference to Figs. Therefore, for the sake of convenience of description, some of the contents overlapping with the above-mentioned contents will be omitted.

9 is a flowchart for explaining a body temperature measuring method according to an embodiment of the present invention.

Referring to FIG. 9, the body temperature measurement method includes an operation mode determination step (S100), a body temperature measurement step (S200), and a body temperature data storage step (S300).

In operation S100, the operation mode determination unit 130 of the body temperature measuring apparatus 100 determines whether the body temperature measuring unit 110 operates in a dedicated mode or an interlock mode.

Although the body temperature measuring step S200 includes the infrared ray receiving step S210 and the body temperature correcting step S220, each detailed step is performed differently according to the operation mode determined in the operation mode determining step S100.

If the determined operation mode is the dedicated mode, the infrared ray receiving step S211 receives the infrared ray radiated from the first region 210 including the at least a part of the forehead of the user. In the body temperature correction step S221, the body temperature correction unit 112 corrects the body temperature by the correction algorithm for the exclusive mode.

If the determined operation mode is the interlocking mode, the infrared ray receiving step S212 receives the infrared ray including the first area 210 but the second area 220 which is wider than the infrared ray receiving part 111. [ In the body temperature correction step S222, the body temperature correction unit 112 corrects the body temperature by the correction algorithm for the interlocking mode.

10 is a flow chart for explaining the temperature correction step in the interlocking mode in the body temperature measuring method according to the embodiment of the present invention.

10, the temperature correction step S222 in the interlocking mode includes a correction image generation step S222-1, a second region image separation step S222-2, and a compensation value calculation step S222-3 do.

The correction image generation step S222-1 is a step of generating a correction image 160 by picking up a portion including the second area 220. [ The correction image 160 may be performed by either the iris image capturing unit 122 or the camera unit 140. [

The second region image separation step S222-2 is a step of separating the image 161 of the second region from the correction image 160. [ The angle of view 2 of the iris image pickup section 122 that implements the correction image 160 or the angle of view 3 of the camera section 140 is compared with the light reception angle 1 of the infrared ray receiving section 111, The second region image 161 can be separated.

The compensation value calculation step S222-3 is a step for compensating the image 161 of the separated second region by using various methods. For example, it is possible to recognize the face in the image 161 of the second region and to calculate the compensation value according to the ratio of the face in the image 161 of the second region. In addition, the forehead portion can be recognized in the image 161 of the second region and the compensation value can be calculated according to the ratio of the forehead portion in the image 161 of the second region. In addition, the configuration of the face in the image 161 of the second area can be recognized, and the compensation value can be calculated according to the configuration of the recognized face.

The embodiments of the body temperature measuring apparatus and the body temperature measuring method of the present invention have been described above. The present invention is not limited to the above-described embodiments and the accompanying drawings, and various modifications and changes may be made by those skilled in the art to which the present invention pertains. Therefore, the scope of the present invention should be determined by the equivalents of the claims and the claims.

100: Thermometer
110: body temperature measuring unit 111: infrared ray receiving unit
112: temperature correction unit
120: iris recognition unit 121: infrared ray inspection unit
122: iris image pickup section
130: Operation mode determination unit
140:
150: Display
160: Correction image 161: Second area image
210: first region 220: second region
a: Temperature measurement proper distance b: Proper iris recognition distance
? 1: Receiving angle of the infrared ray receiving unit? 2: Angle of view of the iris image pickup unit
? 3: angle of view of the camera portion

Claims (17)

A body temperature measuring unit including an infrared ray receiving unit for receiving infrared rays radiated from a user's body and a body temperature correcting unit for correcting body temperature;
An iris recognition unit for recognizing a user's iris; And
Wherein the body temperature measuring unit includes an operation mode determining unit for determining whether the body temperature measuring unit is in a dedicated mode in which the user operates the body temperature measuring unit or in an interlocking mode in which the iris recognition unit recognizes the iris,
The infrared light-
Receiving the infrared rays emitted from the first region including at least a part of the forehead of the user when the determined operation mode is the dedicated mode and transmitting the infrared rays emitted from the second region including the first region when the determined operation mode is the interlocking mode, Receiving infrared rays,
The body-
If the determined operation mode is the dedicated mode, the body temperature is corrected by the correction algorithm for the dedicated mode. If the determined operation mode is the interlock mode, the body temperature is corrected by the correction algorithm for the interlock mode, Measuring device.
The method according to claim 1,
Wherein the iris recognition unit comprises:
An infrared irradiator for irradiating the iris with infrared light; And
And an iris image pickup section for picking up the iris in an infrared band.
3. The method of claim 2,
Wherein the light reception angle of the infrared light-receiving unit is smaller than the angle of view of the iris image sensing unit.
3. The method of claim 2,
Wherein the infrared ray receiving unit receives infrared rays when the infrared ray irradiating unit does not irradiate the infrared ray.
3. The method of claim 2,
Wherein the infrared ray received by the infrared ray receiving portion and the infrared ray irradiated by the infrared ray irradiating portion correspond to different wavelength bands.
3. The method of claim 2,
Wherein the iris image sensing section generates an image for correction by sensing a portion including the second region when the infrared ray receiving section is operated in the interlocking mode,
Wherein the correction algorithm for interlocking mode calculates the compensation value using the correction image.
The method according to claim 6,
The calculation of the compensation value using the correction image may include:
And separating the image of the second region from the correction image.
3. The method of claim 2,
Wherein the infrared ray receiving unit, the infrared ray irradiating unit, and the iris capturing unit are arranged on the same surface in the body temperature measuring apparatus.
The method according to claim 1,
Further comprising a camera section for capturing an image of a subject in a visible light band,
Wherein the camera unit captures a portion including the second area when the infrared ray receiving unit is operated in the interlocking mode to generate a correction image,
Wherein the correction algorithm for interlocking mode calculates the compensation value using the correction image.
10. The method of claim 9,
Wherein the receiving angle of the infrared ray receiving unit is smaller than the angle of view of the camera unit.
10. The method of claim 9,
The calculation of the compensation value using the correction image may include:
And separating the image of the second region from the correction image.
13. The method of claim 12,
And the infrared ray receiving unit and the camera unit are disposed on the same surface of the body temperature measuring apparatus.
An iris recognition unit for recognizing the iris of the user, and a controller for controlling the operation of the iris recognition unit based on an operation of the user to measure the body temperature Wherein the iris recognition unit recognizes whether the iris recognition unit is in a dedicated mode or an interlocking mode in which the iris recognition unit operates in conjunction with recognizing the iris, the method comprising:
Determining the operation mode by the operation mode determination unit;
A body temperature measuring step in which the infrared ray receiving unit receives infrared rays according to the determined operation mode and the body temperature correcting unit corrects the body temperature; And
And a data storing step of storing corrected body temperature data,
Wherein the body temperature measuring step comprises:
If the determined operation mode is the dedicated mode,
Receiving infrared rays emitted from a first region including at least a part of a forehead of a user; And
Wherein the body temperature correction section includes a step of correcting the body temperature by a correction algorithm for a dedicated mode,
If the determined operation mode is the interlocking mode,
Receiving the infrared ray including the first region but emitting in a second wider region; And
Wherein the body temperature correction section includes a step of correcting the body temperature by a correction algorithm for interlocking mode which is different from the correction algorithm for the exclusive mode.
14. The method of claim 13,
Wherein the iris recognition unit includes an infrared ray irradiation unit for irradiating the iris with infrared light and an iris image pickup unit for picking up the iris in an infrared band,
The step of calibrating the body temperature in the interlocking mode comprises:
The iris image capturing section capturing a portion including the second region to generate a correction image; And
And calculating a compensation value using the correction image.
15. The method of claim 14,
The step of calculating the compensation value includes:
And separating the image of the second region from the correction image.
14. The method of claim 13,
The body temperature measuring apparatus further includes a camera section for capturing an image of a subject in a visible light band,
The step of calibrating the body temperature in the interlocking mode comprises:
Capturing a portion of the camera portion including the second region to generate a correction image; And
And calculating a compensation value using the correction image.
17. The method of claim 16,
The step of calculating the compensation value includes:
And separating the image of the second region from the correction image.

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