Height-adjustable biological signal measuring device

By designing a biosignal measurement device that can adjust the height of the terminal by using a motor drive, the face is located in the center of the camera, solving the problem of noise influence in rPPG technology and improving signal quality and convenience.

CN120323947APending Publication Date: 2025-07-18韩国元泰株式会社
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Patent Information

Application Number
CN202411779001.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-01-18
Filing Date
2024-12-05
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

Remote photoelectric capacitive pulse wave snogram (rPPG) technology is susceptible to peripheral light and object movement noise during camera shooting, affecting signal quality, and insufficient product convenience.

Method used

A biosignal measurement device that can adjust the height of the terminal is designed, including a terminal and a shelf. The height adjustment part is driven by a motor to adjust the height of the terminal, so that the face is located in the center of the camera, and the biological signal is measured using near-infrared and RGB cameras.

Benefits of technology

By automatically adjusting the terminal height, the error in image data collection angle is reduced, and the reliability and signal quality of biological signal measurement are improved.

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Abstract

The present invention relates to a height-adjustable biosignal measurement device, comprising: a terminal comprising: a power supply unit for receiving and supplying power to complete the overall operation; a first control unit and a second control unit which are operated by receiving power from the power supply unit, and which control the overall operation; an input unit for measuring an image and recognizing an object under the control of the first control unit and the second control unit; an output unit for outputting an image, light, sound, a printed matter, and a light emitting diode (LED) under the control of the first control unit and the second control unit; the fixing part can be installed in the shelf or a wall, a pillar and the like; the shelf comprises a motor driving part which receives the electric power of the power supply part of the terminal and works; and the height adjusting part can be combined and fixed by the fixing part of the terminal and adjust the height of the terminal along the vertical direction.
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Description

Technical Field

[0001] The present invention relates to a bio-signal measuring device with adjustable height, and more particularly to a bio-signal measuring device that can adjust its height according to the height of the user. Background Art

[0002] The most common technique for measuring photoplethysmography (PPG) using light is to analyze the amount of transmitted light of the light irradiated onto the human body, and it can be explained according to the Beer-Lambert law, that is, the absorbance is proportional to the concentration of the absorbing substance and the thickness of the absorption layer. According to this law, it can be deduced that the change signal of the transmitted light is proportional to the change in the volume of the transmitted substance. Therefore, even without knowing the absorbance of the substance, the state of the heart, etc. can be grasped using photoplethysmography (PPG).

[0003] In recent years, a technique of remote photoplethysmography (rPPG), which is a further improvement from the technique using photoplethysmography (PPG), has emerged. As the most popular technique for grasping signals related to the heart pulse using photoplethysmography (PPG), it includes the technique of obtaining photoplethysmography (PPG) by directly irradiating light and directly measuring the projected light by bringing a device equipped with a camera and illumination close to the human body and in contact with it, such as a smartphone. Recently, continuous research and development have been carried out on techniques related to remote photoplethysmography (rPPG) that grasp the volume change of blood vessels from the signals obtained from the images captured by a camera.

[0004] The technique using remote photoplethysmography (rPPG) does not require contact between the object and the measuring device, so it can be applied in various ways in devices and places equipped with cameras, such as airport immigration offices and remote medical consultations.

[0005] However, the technique related to remote photoplethysmography (rPPG) has the problem that noise generated by surrounding light and the movement of the object during the process of photographing the object by the camera has a significant impact on the signal, and in order to improve the convenience of the user, it is necessary to ensure that the product can be easily moved and the set value can be set.

[0006] Prior Art Documents

[0007] Patent Documents

[0008] Korean Patent Publication No. 10-2021-0084400A (July 7, 2021) Summary of the Invention

[0009] (I) Technical Problem to be Solved

[0010] In order to solve the above problems, an object of the present invention is to provide an adjustable-height biometric signal measurement device that can automatically perform height adjustment according to the user's height and thereby position the face at the center of the camera.

[0011] In addition, an object of the present invention is to provide an adjustable-height biometric signal measurement device that can irradiate a laser of infrared wavelength and an RGB camera to the user, capture the reflected R value and the change of the laser of infrared wavelength as an image, and then analyze the corresponding image to measure the user's biometric signal.

[0012] (II) Technical Solution

[0013] To achieve the above object, the adjustable-height biometric signal measurement device of the present invention may include a terminal and a shelf. Among them, the terminal includes: a power supply unit that receives and supplies power to complete the overall operation; a first control unit and a second control unit that receive power from the power supply unit and operate to control the overall operation; an input unit that measures an image and identifies an object under the control of the first control unit and the second control unit; an output unit that outputs an image, light, sound, print, and a light-emitting diode (LED) under the control of the first control unit and the second control unit; and a fixing unit that can be installed in the shelf, wall, pillar, etc.; and the shelf includes: a motor driving unit that receives power from the power supply unit of the terminal and operates; and a height adjustment unit that allows the fixing unit of the terminal to be fixedly coupled and adjusts the height of the terminal in the vertical direction.

[0014] The input unit may further include: an object identifier that identifies the user's identity, etc.; and an image measurer that measures the user's face image.

[0015] The output unit may include: a first display screen that operates under the control of the first control unit and the second control unit to provide the user with a usage method and a guidance screen; a second display screen that operates under the control of the first control unit and the second control unit to display a captured image to the user; a light outputter that operates under the control of the first control unit and the second control unit to output light to the user's skin; a sound outputter that operates under the control of the first control unit and the second control unit to output a statement message or a measurement result, etc. to the user through sound; and a print outputter that operates under the control of the first control unit and the second control unit to output the measured biometric signal data.

[0016] The height adjustment unit may further include: a housing having a hole that is long in the vertical direction on one side; a motor driven under the control of the motor driving unit; a coupling connected to the motor and having a plurality of perforated wires; a rod in the form of a screw fixed to one side of the coupling; and a fixing member having a hole through which the rod can pass, and the surface of the hole is machined so as to engage and rotate with the screw form of the rod.

[0017] The fixing member is in a form in which a part is exposed outside the hole of the height adjustment unit and the remaining part is located inside the hole. At this time, the exposed side of the fixing member that is exposed from the hole of the height adjustment unit can be coupled to the terminal.

[0018] The fixing member can be coupled to the fixing part of the terminal, thereby fixing the terminal to the shelf.

[0019] The fixing member is provided with a hole through which the rod can pass, and the hole can engage with the screw-form rod and rotate and move in the up and down directions.

[0020] The first control unit can control the image measuring device, the first display screen, the second display screen, the light output device, and the sound output device, and the second control unit can control the object recognition device, the printing output device, and the motor driving unit.

[0021] The object recognition device can recognize at least one of a radio frequency identification code (RFID), a two-dimensional code (QR), a bar code, and a fingerprint.

[0022] The wavelength of the near-infrared laser output from the light output device can be 600 nm and 940 nm.

[0023] When the first control unit determines that the user's face is located at the center of the image measuring device, the motor of the height adjustment unit will operate under the control of the motor driving unit, and the coupling connected to one side of the motor will rotate and drive the rod fixed to the coupling to rotate together, so that the fixing member that engages and rotates with the rod moves upward or downward.

[0024] The first display screen outputs to the user the recognition result of the object recognition device and whether it is normally recognized, etc., provides the user with the usage method and the guidance screen, and can display messages that must be transmitted, such as emergency notification messages or warning messages, and can also provide a control graphical user interface (GUI) that the user can directly touch and control.

[0025] The second display screen can output the image of the user captured in the image measuring device for the user to confirm with the naked eye, and the first control unit can measure the biological signal from the measurement image of the user captured in the image measuring device and output the result to the user.

[0026] The printing output device can output the biological signal measurement result measured in the first control unit using paper, or can generate a QR code and browse it on the mobile device by using the mobile device of the user to identify the QR code.

[0027] The printing output device may further include: a printing control unit that can print using a physical button or touch when the user needs to print; and a data storage box that stores paper for providing printed materials.

[0028] The shelf may further include: a moving member that can be used for moving.

[0029] (III) Advantageous Effects

[0030] Through the above-mentioned features, the present invention can adjust the height of the terminal according to the height of each user and thereby reduce the error caused by the image data collection angle, thus improving the reliability of the result value.

[0031] In addition, the biological signal can be measured and analyzed by judging the near-infrared value and the R value of RGB obtained from the image data, thereby obtaining a more reliable result. Brief Description of the Drawings

[0032] Figure 1 It is a configuration diagram of a height-adjustable biological signal measurement device according to an embodiment of the present invention.

[0033] Figure 2 It is a schematic diagram of a height-adjustable biological signal measurement device according to an embodiment of the present invention.

[0034] Figure 3 It is an enlarged view of the terminal of a height-adjustable biological signal measurement device according to an embodiment of the present invention.

[0035] Description of the Reference Numerals:

[0036] 100: Terminal

[0037] 110: Power Supply Unit

[0038] 120: First Control Unit

[0039] 130: Second Control Unit

[0040] 140: Input Unit

[0041] 141: Object recognizer

[0042] 142: Image measurer

[0043] 150: Output unit

[0044] 151: First display screen

[0045] 152: Second display screen

[0046] 153: Light outputter

[0047] 154: Sound outputter

[0048] 155: Print outputter

[0049] 160: Fixing part

[0050] 200: Shelf

[0051] 210: Motor drive part

[0052] 220: Height adjustment part

[0053] 221: Motor

[0054] 222: Coupling

[0055] 223: Rod

[0056] 224: Fixing component

[0057] 230: Second light emitter Detailed implementation manners

[0058] Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those with general knowledge in the technical field to which the present invention belongs can easily implement the present invention. However, the present invention can be implemented in various different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention, parts irrelevant to the description are omitted in the drawings, and similar parts are assigned similar reference numerals throughout the specification.

[0059] Throughout the specification, when it is described that a certain part is "connected (linked, contacted, combined)" with another part, it includes not only the case of "direct connection" but also the case of "indirect connection" with other components interposed therebetween. In addition, when it is described that a certain part "includes" a certain component, unless otherwise clearly stated to the contrary, it does not mean excluding other components, but means that other components can also be provided.

[0060] The terms used in this specification are only for describing specific embodiments and are not intended to limit the present invention. Unless there is a clear contrary meaning in the context, a singular statement also includes a plural meaning. In this specification, terms such as "including" or "having" are only used to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations described in the specification, and should not be construed as precluding the possibility of the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations.

[0061] Next, reference will be made to Figures 1 to 3 an adjustable-height biosignal measurement device according to an embodiment of the present invention will be described.

[0062] Figure 1 is a configuration diagram of an adjustable-height biosignal measurement device according to an embodiment of the present invention, Figure 2 is a schematic diagram of an adjustable-height biosignal measurement device according to an embodiment of the present invention, and Figure 3 is a detailed enlarged view of an adjustable-height biosignal measurement device according to an embodiment of the present invention.

[0063] Refer to Figures 1 to 3 , the adjustable-height biosignal measurement device is composed of a terminal 100 and a shelf 200 on which the terminal can be installed.

[0064] The terminal 100 includes: a power supply unit 110 that receives and supplies power to complete the overall operation; a first control unit 120 and a second control unit 130 that receive power from the power supply unit 110 and operate to control the overall operation; an input unit 140 that measures an image and identifies an object under the control of the first control unit 120 and the second control unit 130; an output unit 150 that outputs an image, light, sound, printed matter, and a light-emitting diode (LED) under the control of the first control unit 120 and the second control unit 130; and a fixing unit 160 that can be installed in the shelf 200 or on a wall, pillar, etc.

[0065] The input unit 140 further includes: an object identifier 141 that identifies the identity of the user, etc.; and an image measurer 142 that measures the facial image of the user.

[0066] The output unit 150 includes: a first display screen 151, which operates under the control of the first control unit 120 and the second control unit 130 to provide the user with usage methods and guidance screens; a second display screen 152, which operates under the control of the first control unit 120 and the second control unit 130 to display a shooting screen to the user; a light output device 153, which operates under the control of the first control unit 120 and the second control unit 130 to output light to the user's skin; a sound output device 154, which operates under the control of the first control unit 120 and the second control unit 130 to output declaration information, measurement results, etc. to the user through sound; a print output device 155, which operates under the control of the first control unit 120 and the second control unit 130 to output the measured biological signal data; and a first light emitter 156, which operates under the control of the first control unit 120 and the second control unit 130 to display the current state of the terminal to the user through color.

[0067] The shelf 200 includes: a motor drive unit 210, which receives power from the power supply unit 110 of the terminal 100 and operates, and operates under the control of the second control unit 130; a height adjustment unit 220, to which the fixing unit 160 of the terminal 100 can be coupled and fixed, and the height of the terminal can be adjusted in the vertical direction by the operation of the motor drive unit 210; and a second light emitter 230, which operates under the control of the first control unit 120 and the second control unit 130 to display the current state of the terminal to the user through color.

[0068] The height adjustment unit 220 includes: a housing, which is provided with a hole in a long form along the vertical direction on one side; and further includes: a motor 221, which is driven under the control of the motor drive unit 210; a coupling 222, which is connected to the motor 221 and has a plurality of perforated wires; a rod 223, in the form of a screw, which is fixed to one side of the coupling 222; and a fixing member 224, which is provided with a hole (not shown) through which the rod 223 can pass, and the surface of the hole is machined so as to engage and rotate with the screw form of the rod 223.

[0069] The fixing member 224 is in a form in which a part is exposed outside the hole of the height adjustment unit 220 and the remaining part is located inside the hole. At this time, the exposed side of the fixing member 224 exposed from the hole of the height adjustment unit 220 is available for the terminal 100 to be coupled. In addition, the fixing member 224 can be coupled to the fixing unit 160 of the terminal 100, thereby fixing the terminal 100 to the shelf 200. That is, the fixing member 224 is provided with a hole through which the rod 223 can pass, and the hole can engage with the screw-form rod 223 and rotate and move in the vertical direction.

[0070] The first control unit 120 controls the image measurer 142, the first display screen 151, the second display screen 152, the light outputter 153, and the sound outputter 154, while the second control unit 130 controls the object recognizer 141, the print outputter 155, the first light emitter 156, the second light emitter 230, and the motor drive unit 210. However, the control ranges of the first control unit 120 and the second control unit 130 may vary according to the connection method, and thus are not limited thereto.

[0071] The object recognizer 141 can recognize at least one of a radio frequency identification code (RFID), a two-dimensional code (QR), a bar code, and a fingerprint, but is not limited thereto.

[0072] It is advisable for the image measurer 142 to use an RGB camera and a thermal imaging camera, but is not limited thereto.

[0073] In the first control unit 120, it is determined whether the face of the user in the image measurer 142 is located at the center of the image measurer 142. At this time, the first control unit 120 measures a biological signal using the near-infrared light output from the light outputter 153 and the R value in RGB.

[0074] The wavelengths of the near-infrared lasers output from the light outputter 153 are preferably 660 nm and 940 nm, but are not limited thereto.

[0075] When the first control unit 120 determines that the face of the user is located at the center of the image measurer 142, the motor 221 of the height adjustment unit 220 will operate under the control of the motor drive unit 210, and the coupling 222 connected to one side of the motor 221 will rotate and drive the rod 223 fixed to the coupling 22 to rotate together. At this time, the fixed member 224 that engages and rotates with the rod 223 can move upward or downward.

[0076] The first display screen 151 outputs to the user the recognition result of the object recognizer 141 and whether the recognition is normal, etc., provides the user with a usage method and a guidance screen, and can display messages that must be transmitted, such as an emergency notification message or a warning message, and can also provide a control graphical user interface (GUI) that allows the user to directly touch and control.

[0077] The second display screen 152 can output the image of the user captured by the image measurer 142 for the user to confirm with the naked eye, and the first control unit 120 can measure a biological signal from the measurement image of the user captured by the image measurer 142 and output and provide the result to the user.

[0078] The sound output unit 154 provides convenience to the user by outputting usage methods and guiding voice notifications to the user, and outputs essential messages such as emergency notification messages and warning sounds through sound.

[0079] The printing output unit 155 can output the biological signal measurement results measured in the first control unit 120 using paper, or can generate a QR code and browse it on the user's mobile device by using the user's mobile device to identify the QR code. The printing output unit 155 further includes a printing control unit and a document storage box. The printing control unit can print using physical buttons or touch when the user needs to print, and the document storage box can store paper for providing printed materials.

[0080] The shelf 200 may further include: a moving member 240 that can be used for moving. In addition, in cases where fixing rather than moving is required, a shelf fixing unit (not shown) that can be fixed to the floor or wall may be provided.

[0081] In the above content, the embodiments of the present invention have been described in detail, but the scope of the claims of the present invention is not limited thereto. Various modifications or improved forms made by relevant practitioners using the basic concepts of the present invention defined in the claims are included within the scope of the claims of the present invention.

Claims

1. An adjustable-height biological signal measuring device, characterized in that, It includes a terminal and a shelf. The terminal includes: A power supply unit that receives and supplies power to complete the overall operation. A first control unit and a second control unit that receive power from the power supply unit and operate to control the overall operation. An input unit that measures an image and identifies an object under the control of the first control unit and the second control unit. An output unit that outputs an image, light, sound, printed matter, and light-emitting diodes under the control of the first control unit and the second control unit; and A fixing unit that is installed in the shelf, wall, or column. The shelf includes: A motor drive unit that receives power from the power supply unit of the terminal and operates; and A height adjustment unit that the fixing unit of the terminal is combined and fixed to, and adjusts the height of the terminal in the vertical direction.

2. The adjustable-height biological signal measurement device according to claim 1, wherein: The input unit further includes: an object identifier that identifies the user's identity; and an image measurer that measures the user's facial image.

3. The adjustable-height biological signal measurement device according to claim 1, wherein: The output unit includes: A first display screen that operates under the control of the first control unit and the second control unit to provide the user with usage methods and guidance screens. A second display screen that operates under the control of the first control unit and the second control unit to display the shooting screen to the user. A light outputter that operates under the control of the first control unit and the second control unit to output light to the user's skin. A sound outputter that operates under the control of the first control unit and the second control unit to output statement information or measurement results to the user through sound; and A print outputter that operates under the control of the first control unit and the second control unit to output the measured biological signal data.

4. The adjustable-height biological signal measurement device according to claim 1, wherein: The height adjustment unit further includes: A housing having a hole that is long in the vertical direction on one side. A motor that is driven under the control of the motor drive unit. A coupling that is connected to the motor and has a plurality of perforated wires. A rod in the form of a screw, which is fixed to one side of the coupling. A fixing member having a hole through which the rod passes, and the surface of the hole is machined to engage and rotate with the screw form of the rod.

5. The adjustable-height biological signal measurement device according to claim 4, wherein: The fixing member is in a form where a part is exposed outside the hole of the height adjustment unit and the remaining part is located inside the hole. At this time, the exposed side of the fixing member that is exposed from the hole of the height adjustment unit is for the terminal to be combined.

6. The adjustable-height biological signal measurement device according to claim 4, wherein: The fixing member is combined with the fixing unit of the terminal to fix the terminal to the shelf.

7. The adjustable-height biological signal measurement device according to claim 4, wherein: The fixing member is provided with a hole through which the rod passes, and the hole engages with the screw-form rod and rotates and moves in the vertical direction.

8. The adjustable-height biological signal measuring device according to claim 1, wherein: The first control unit controls the image measuring device, the first display screen, the second display screen, the light output device, and the sound output device, and the second control unit controls the object identifier, the printing output device, and the motor drive unit.

9. The adjustable-height biological signal measuring device according to claim 2, wherein: The object identifier identifies at least one of a radio frequency identification code, a two-dimensional code, a bar code, and a fingerprint.

10. The adjustable-height biological signal measuring device according to claim 3, wherein: The wavelengths of the near-infrared lasers output from the light output device are 600 nm and 940 nm.

11. The adjustable-height biological signal measuring device according to claim 1, wherein: When the first control unit determines that the user's face is located at the center of the image measuring device, the motor of the height adjustment unit will operate under the control of the motor drive unit, and the coupling on one side connected to the motor will rotate and drive the rod fixed to the coupling to rotate together, so that the fixed component that engages and rotates with the rod moves upward or downward.

12. The adjustable-height biological signal measuring device according to claim 3, wherein: The first display screen outputs to the user the recognition result of the object identifier and whether the recognition is normal, provides the user with the usage method and the guidance screen, and displays an emergency notification message or a warning message, and also provides a control graphical user interface for the user to directly touch and control.

13. The adjustable-height biological signal measuring device according to claim 3, wherein: The second display screen outputs the image of the user captured by the image measuring device for the user to confirm with the naked eye, and the first control unit measures the biological signal from the measurement image of the user captured by the image measuring device and outputs the result to the user.

14. The adjustable-height biological signal measuring device according to claim 3, wherein: The printing output device outputs the biological signal measurement result measured in the first control unit using paper, or generates a two-dimensional code and browses it on the mobile device by using the user's mobile device to identify the two-dimensional code.

15. The adjustable-height biological signal measuring device according to claim 3, wherein: The printing output device further includes: a printing control unit that prints using a physical button or touch control when the user needs to print; and a data storage box that stores the paper for providing the printed matter.

16. The adjustable-height biological signal measuring device according to claim 1, wherein: The shelf further includes: a moving component for moving.