KR20050011283A - A body impedance measuring device and method thereof - Google Patents

Abstract

PURPOSE: An apparatus and a method for measuring body fat are provided to randomly measure and manage body fat of a user during normal computer usage by implementing a body fat measurer on computer keyboards. CONSTITUTION: An apparatus for measuring body fat includes an electrode(110), a keyboard controller(130), a body fat measurer(120), and a switch(140). The electrodes are implemented at predetermined positions on a keyboard and are contacted with parts of the body of a measured person. The keyboard controller outputs normal key signals. The body fat measurer forces the keyboard controller into an inactive mode when the electrode is touched with the measured person, measures a body current of the user to calculate a body impedance. The body fat measurer transmits the body impedance to a computer in a key signal format. The switch switches a data line and a clock line between the computer and the keyboard controller according to a control signal applied from the body fat measurer.

Description

Body fat analyzer & method {A BODY IMPEDANCE MEASURING DEVICE AND METHOD THEREOF}

The present invention relates to a body fat analyzer, and more particularly, it is equipped with a body fat analyzer in a computer keyboard so that the body fat meter can be easily measured during computer operation, and the result of the measured body fat analyzer is analyzed by a user computer. The present invention relates to a body fat measurement device and a method for outputting a quick result and for multi-faceted analysis of a disease related thereto and outputting the result through a monitor.

In general, the human body consists of four main components: body water, protein, body fat and minerals, of which body fat is very closely related to adult disease.

Typically, obesity of the body refers to a state in which the body weight is excessive, but precisely, a state in which the balance between the two components of the energy-using muscle component and the body fat releasing energy means a relatively large body fat amount.

Obesity of the body is often diagnosed by the ratio of body fat and body weight, that is, the percentage of body fat. Except for body fat, body weight is largely determined by skeletal and muscular mass, so body fat percentage is determined by the ratio of muscle mass and body fat mass.

If your body fat is higher than your standard or your muscle mass is lower than your standard, your body fat percentage will increase.

Therefore, the obesity of the body is not simply determined by the weight alone, but in the case of a slender person, even if the muscle mass is insufficient, it is determined as obesity.

Therefore, it is used as a means of quantitatively measuring the components constituting the body, and repeatedly measuring the mutual ratios thereof to determine the therapeutic effect.

The body fat measurement of the body is usually measured by the body impedance (Body Impedance).

A device for measuring body fat of a body by contacting a finger to finger with a body fat measuring terminal using a conventional body fat measuring device is disclosed in US Pat. No. 6,188,925, which can be seen in FIG. The thumb and index finger of the measurer's left hand 20 are in contact with one measurement terminal 11, and the thumb and index finger of the measurer's right hand 30 are in contact with the other measurement terminal 12, and the left hand 20 and The method of measuring the body fat meter from the body impedance measured from the thumb and index finger of the right hand 30 is applied.

As can be seen in the attached FIG. 8, the conventional body fat scale measuring apparatus using the method described above has a small contact area due to the partial contact of the thumb and index finger of the measurer, thereby reducing the resistance to measure a normal body fat scale. There is a disadvantage that is not made.

In addition, the gripping of the measuring terminal causes unnecessary waste of contact, and there is a problem that the finger becomes excessive when used repeatedly.

The present invention has been invented to solve the above problems, the purpose of which is to install a body fat measuring device on the computer keyboard to easily perform the body fat meter measurement during computer operation, the result of the measured body fat meter to the user computer The result is analyzed quickly through the set program.

In addition, according to the results of the body fat system to be measured, the multi-faceted analysis and the results of the diseases related to the monitor are to be output.

In addition, the data analyzed from the results of the measured body fat analyzer is transmitted to the affiliated medical institutions in real time via the Internet to provide a remote diagnosis medical service.

In addition, the analysis data for the quantitatively measured body fat meter is stored and analyzed in various directions on the change trend, and the results can be displayed in various expression methods.

1 is a block diagram of a body fat analyzer measuring apparatus mounted on a computer keyboard according to an embodiment of the present invention.

2 is a plan view of a computer keyboard equipped with a body fat measurement device according to an embodiment of the present invention.

Figure 3 is a detailed block diagram of the body fat scale measuring means shown in FIG.

Figure 4 is a state of use of the body fat analyzer according to an embodiment of the present invention.

5 is a view showing a measurement portion in using the body fat analyzer according to the present invention.

Figure 6 is a flow diagram of an embodiment for performing a body fat analyzer using the body fat analyzer according to the present invention.

Figure 7 is a perspective view of a conventional body fat analyzer and state of use.

8 is a view showing a measurement site in using a conventional body fat analyzer.

The present invention for realizing the above object is provided with a plurality of electrodes in a predetermined position outside the computer keyboard and in contact with the body part of the measuring person; A keyboard controller for outputting a normal key signal for a computer task; When the body part of the measurer contacts the electrode, the keyboard controller is placed in an inactive mode, the body current (resistance value) of the measurer is measured through the electrode, and the body impedance is extracted, and the extracted body impedance is a key signal. Body fat analyzer measuring means for transmitting to a computer in which a body fat analyzer analysis algorithm is set in the form of? And a switch unit for intermitting a data line and a clock line between the computer and the keyboard controller according to a control signal applied from the body fat analyzer.

The present invention also provides a method of determining whether a specific part of a body of a measurer contacts an electrode while a computer is kept powered on; When the electrode contact is detected, entering the keyboard controller into an inactive mode and determining whether the contact state with the electrode is stable; If the contact state is not stable, transmitting an error code to a computer to display an error state through display means, and guiding a contact method according to the error code; If the contact state is stable, measuring a body resistance value and extracting a substantial body resistance value from a plurality of set resistance values; Extracting body impedance from the extracted body resistance value and transmitting the body impedance to a computer in the form of a key signal; The computer receiving the body impedance data may include analyzing the state of the body fat analyzer of the measurer from the set algorithm and the map table and displaying the result.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in Figure 1 attached to the body fat measuring apparatus according to the present invention is provided in the computer keyboard 100, the electrode 110 and body fat measuring means 120 and the keyboard controller 130 and switch unit ( 140).

The electrode 110 is provided in plural in a predetermined position of the computer keyboard 100 and is in contact with a portion of the measurer's body, preferably a predetermined portion of the measurer's right and left hands when measuring the body fat scale.

The body fat analyzer measuring unit 120 enters the keyboard controller 130 into an inactive state when the contact of the body fat analyzer measuring doctor, that is, the electrode 110 is detected through the electrode 110, and through the electrode 110. The body current of the measurer is measured, and the body impedance is extracted therefrom, and information about the body impedance is generated and applied to the user computer 300 by generating a key combination, for example, a key of Ctrl + Alt + Window key + 1 pressed. .

The keyboard controller 130 is responsible for transmitting a key input signal for the computer 300 to the computer 300.

The switch unit 140 intercepts the data line and the clock line connecting the computer 300 and the keyboard controller 130 according to the control signal applied from the body fat analyzer measuring means 120.

The body fat analyzer measuring means 120 and the keyboard controller 130 share the cable 200, and use the power Vcc supplied from the computer 300 without a separate power source.

As shown in FIG. 2, the electrode 110 is installed around the left edge of the front portion of the computer keyboard 100 to contact a specific part of the thumb of the left hand of the operator. -1 and the second contact electrode 110-installed on the left side so that a specific part of the palm can be contacted while a specific part of the thumb of the left hand of the measurer is in contact with the first contact electrode 110-1. 2) and a third contact electrode 110-3 which is installed around the right edge of the front part to contact a specific part of the thumb of the right hand of the measurer, and the thumb of the right hand of the measurer on the third contact electrode 110-3. It consists of a fourth contact electrode (110-4) is installed on the right side so that the specific portion of the palm in contact with the specific portion of the contact.

In addition, the left / right side of the computer keyboard 100 is a measurer computer keyboard (in order to contact a specific portion of the left and right hand to the first to fourth contact electrodes 110-1 to 110-4 described above). In order to provide a stable holding force when holding the 100, and to prevent the second contact electrode 110-2 and the fourth contact electrode 110-4 from protruding to the outside to be bent to the inner surface with a predetermined curvature and depth. It is formed.

Although the positions of each of the contact electrodes 100-1, 100-2, 100-3, and 100-4 are installed on the front and side surfaces of the computer keyboard 100, the upper and lower sides of the flat part or It can be provided on the lower side, and because it can be provided with one electrode each in the plane and side, not limited to this, it is obvious that various applications of the designer, it is also included in the scope of the present invention.

In addition, as shown in FIG. 5, the body part of the measurer contacting each of the contact electrodes 100-1, 100-2, 100-3, and 100-4 is a predetermined portion of the thumb. 510 and the predetermined portion 520 of the palm.

In the case of Figure 5 is shown with respect to the left hand, since the specific part of the right hand is also a symmetrical part with the left hand, illustration thereof is omitted.

In addition, the body fat analyzer measuring means 120, as can be seen in the attached Figure 3, the first interface 121 and the second interface 122, the control unit 123, the memory 124 and the third interface ( 125, wherein the first interface 121 is connected to the first contact electrode 110-1 to control a voltage measurement value of the body measured from a specific part of the body, preferably the left hand thumb 510. The first electrode connecting portion 121-1, which converts the signal into a signal that can be recognized by the 123, and outputs the converted signal, is connected to the second contact electrode 110-2. It includes a second electrode connecting portion 121-2 for converting the voltage measured value of the body measured in the) into a signal that can be recognized by the control unit 123 and outputs.

The second interface 122 is connected to the third contact electrode 110-3 as a signal that can be recognized by the controller 123 of the voltage measurement value of the body measured from a specific part of the body, preferably the right thumb. The voltage control value of the body, which is connected to the third electrode connecting portion 122-1 and the fourth contact electrode 110-4 which is converted and output, is measured at a specific portion of the body, preferably a predetermined portion of the right hand palm. And a fourth electrode connecting portion 122-2 which converts the signal into a signal that can be recognized by the 123 and outputs the converted signal.

The controller 123 transmits the corresponding information to the keyboard controller 130 when the body fat meter measurement request through the first and second interfaces 121 and 122 is detected, that is, a specific part of the body contacts the electrode 110. Simultaneously transmits, the contact point of the switch 140 is opened to enter the keyboard controller 130 into a deactivated mode, and the body impedance is extracted by comparing the detected body voltage measurement values through a plurality of internal reference resistors. The generated body impedance value is generated in the form of a predetermined key signal combination, for example, a pressed key such as Ctrl + Alt + window key + 1 or 0 and transmitted to the computer 300 through the cable 200. do.

In the memory 124, a table value for a plurality of reference resistors for extracting an body impedance value and an algorithm required for performing the operation of the controller 123 are set.

The third interface 125 allows a predetermined power (Vcc), approximately 5V power applied from the computer 300 to be supplied to the operating power of the body fat analyzer measuring means 120, and measures the measured body impedance value of the computer 300. The interface between the body fat analyzer measuring means 120 and the computer 300 is applied.

Referring to the operation of measuring the body fat meter of the body and displaying through the user computer through the body fat meter measuring apparatus according to the present invention including the function as described above are as follows.

When the computer 300 is booted by turning on the power of the computer 300 to which the computer keyboard 100 equipped with the body fat analyzer according to the present invention is connected (S101), the power supplied from the computer 300 (Vcc The body fat scale measuring means 120 and the keyboard controller 130 mounted in the computer keyboard 100 are activated 102.

As described above, in order to measure a body fat meter of a user or another person of the computer 300 during a process or a break of performing a normal computer operation while the keyboard 100 is activated according to the booting of the computer 300, As shown in FIG. 4, a part of the body, preferably the thumb of the left hand 500, is formed on the contact electrodes 110-1, 110-2, 110-3, and 110-4 provided at a predetermined position of the keyboard 100. The contact electrode 110-1 contacts the palm specific portion of the left hand 500 with the second contact electrode 110-2, and the thumb of the right hand 500-1 contacts the third contact electrode 110-. 3), it is determined whether the palm specific portion of the right hand 500-1 is in contact with the fourth contact electrode 110-4 (S103).

At this time, if a partial contact of the body is not detected by the electrode 110 of the keyboard 100, the normal keyboard state is maintained, and when the body contact is detected, the body fat analyzer measuring means 120 corresponds to the keyboard controller 130 side. Simultaneously with the transmission of the information, the contact of the switch 140 is turned off to block the data and clock lines between the keyboard controller 130 and the computer 300 to enter the keyboard controller 130 in an inactive mode (S104).

As a part of the body is in contact with the electrode 110 of the keyboard 100 as described above, the contact between the body part of the measurer and each of the contact electrodes 110-1, 110-2, 110-3, and 110-4 with the keyboard controller 130 deactivated. The state, for example, gripping pressure, posture, the exact position of the specific portion, whether or not to stop the contact (S105), it is determined whether the contact state is stable (S106).

In the above, when the measurer grips the computer keyboard 100 and contacts the thumb and palm of the right and left hands with the electrode 100, the arm and the body are kept at 90 °.

The reason why the arm and torso is maintained at 90 ° is to separate the contact between the torso and the arm of the measurer when measuring the body fat meter so that the accurate body fat meter can be measured.

That is, since the body fat meter is determined by the ratio of the skeleton, the muscle, and the body fat that make up the body, the body of the measurer is regarded as one large resistance body and the measurement of the resistance value is used. This is to prevent the resistance value becomes large, which makes it impossible to accurately measure the body fat scale.

In the case where the contact between the part of the body and the electrode 110 is unstable, for example, when the contact is frequently disconnected, the control unit 123 in the body fat scale measuring means 120 returns an error code for the key data in the form of a key pressed. The computer 300, which receives the error code, displays an error result through a monitor, and at the same time, a stable holding method and various contact methods of the electrode 110 are generated. It guides the measurer to the screen configuration (S108).

However, when it is determined in S106 that the contact between the part of the measurer's body and the electrode 110 is stable, the controller 123 may control the first electrode connecting portion 121-1 and the second electrode connecting portion of the first interface 121. The body current (resistance) applied through the third electrode connection portion 122-1 and the fourth electrode connection portion 122-4 of the 121-2 and the second interface 122 is provided with a plurality of resistors in the memory 124. The actual body resistance value is measured by comparing with the reference resistance value set as the value (S109).

When measurement of the body resistance value of the measurer is made through the plurality of contact electrodes 110 for the predetermined time set as described above, the body impedance is calculated through the set algorithm (S110), and the calculated body impedance value is set to any key. The combination, for example, "Ctrl + Alt + Windows + 1 or 0" is generated as the key data of the pressed form and transmitted to the computer 300 (S111).

The computer 300 receiving the body impedance value for the measurer from the body fat analyzer measuring means 120 mounted in the computer keyboard 100 calculates the body fat and body weight based on the set body fat analyzer analysis algorithm and the body impedance value. Using the reference map table including the conditions, age, etc., the actual body fat analyzer status is analyzed for the measurer, and the result is displayed in various screen configurations on the monitor (S112).

The displayed screen configuration displays the distribution of body fat for the measurer in a stereoscopic screen, three-dimensional graphics, text, and the like.

In addition, the date and the result of measuring the body fat meter are recorded in a check log, so that the measurer can perform his / her own health care according to the degree of the body fat meter.

As described above, the body fat meter result of the measured person is transmitted online to the affiliated medical institution or the medical institution mainly used by the measurer (S113), and the telemedicine service is performed (S114).

As described above, a part of the body contacted with the electrode 110 is detected while the body fat is measured by contacting a part of the body with the electrode 110 provided in the keyboard 100 or the transmission of the measured body impedance information is completed. The controller 123 in the body fat analyzer measuring unit 120 switches the contact point of the switch 140 from the off state to the on state so that the interface between the keyboard controller 130 and the computer 300 is achieved. To form a state of activation.

Embodiments of the present invention can be changed within the scope of the present invention without departing from the gist of the present invention, it is also possible to change the measurement position in the hand, which is part of the body of the measurer is not limited to the embodiment.

As described above, the present invention is equipped with a body fat analyzer in a computer keyboard, applying a cable for interfacing a conventional key signal without a separate cable, by measuring and managing the body fat meter during normal computer operation from time to time, Provide reliable measurement data.

In addition, as a result of the body fat meter to be measured, the online telemedicine service can be provided, providing stability and convenience.

In addition, by using the power of the computer, a separate power supply means is excluded, and in conjunction with the computer can be utilized as a variety of medical measurement device further including a variety of medical measurement functions.

Claims (7)

Electrodes provided in plural in a predetermined position outside of the computer keyboard and in contact with a part of the body of the measurer; A keyboard controller for outputting a normal key signal for a computer task; When the body part of the measurer contacts the electrode, the keyboard controller is placed in an inactive mode, the body current (resistance value) of the measurer is measured through the electrode, and the body impedance is extracted, and the extracted body impedance is a key signal. Body fat analyzer measuring means for transmitting to a computer in which a body fat analyzer analysis algorithm is set in the form of? And a switch unit for intermitting the data line and the clock line between the computer and the keyboard controller according to the control signal applied from the body fat analyzer. The method of claim 1, The electrode is a first contact electrode is installed around the left edge of the front portion of the computer keyboard to contact a specific portion of the thumb of the left hand of the operator; A second contact electrode provided on the left side of the computer keyboard such that the specific part of the palm is in contact with the first contact electrode while the specific part of the thumb of the left hand of the measurer is in contact with the first contact electrode; A third contact electrode installed around the right edge of the front portion of the computer keyboard to contact a specific portion of the thumb of the right hand of the measurer; And a fourth contact electrode installed on the right side of the computer keyboard such that the specific part of the palm is in contact with the third contact electrode while the specific part of the thumb of the right hand of the measurer is in contact with the third contact electrode. The method of claim 1, The electrode is a body fat analyzer, characterized in that formed on the plane and side of the computer keyboard one by one. The method of claim 1, The body fat analyzer measuring means and the keyboard controller share a cable, characterized in that the body fat meter using a power supplied from a computer. The method of claim 1, The body fat analyzer measuring means is connected to the first contact electrode and converts a voltage value measured at a specific part of the body into a predetermined signal and is connected to the first electrode connecting part and the second contact electrode and is measured at a specific part of the body. A first interface including a second electrode connecting unit converting a value into a predetermined signal and outputting the converted signal; The third electrode connecting portion connected to the third contact electrode and converting the voltage value measured at the specific part of the body into a predetermined signal and outputting the voltage value measured at the specific part of the body connected to the third electrode connecting part and the fourth contact electrode. A second interface including a fourth electrode connecting unit configured to convert the output to a second electrode; A controller configured to extract the body impedance by comparing the voltage measurement values of the body detected by the first and second interfaces through a plurality of internal reference resistors; A memory in which a table value for a plurality of reference resistors for extracting an body impedance value and an algorithm necessary for performing the operation of the controller are set; And a third interface connected to the computer to receive power, and to transmit the measured body impedance value to the computer. Determining whether a specific part of the measurer's body contacts the electrode while the computer is on; When the electrode contact is detected, entering the keyboard controller into an inactive mode and determining whether the contact state with the electrode is stable; If the contact state is not stable, transmitting an error code to a computer to display an error state through display means, and guiding a contact method according to the error code; If the contact state is stable, measuring a body resistance value and extracting a substantial body resistance value from a plurality of set resistance values; Extracting body impedance from the extracted body resistance value and transmitting the body impedance to a computer in the form of a key signal; The computer receiving the body impedance data includes analyzing the state of the body fat meter of the measurer from the set algorithm and the map table and displaying the result. The method of claim 6, And the computer transmits the analyzed body fat analyzer result to an affiliated medical institution or a medical institution used by a measurer to receive a telemedicine service.