KR20010106960A - Cellular phone with body fat analyzer - Google Patents

Abstract

The present invention relates to a body fat measurement combined mobile phone terminal which is always equipped with a body fat measuring device in a mobile phone terminal to carry, but usually used as a mobile phone terminal to measure and display the body fat when necessary, If you want to measure body fat while using, select the body fat measurement mode through the mode selection switch 140 and input the height, weight, age, gender, etc. necessary for body fat analysis through the keypad 150 formed impedance measurement unit ( The first to second electrodes 102 and 104 are contacted by the palms and fingers of the hand holding the mobile terminal having the 100 formed thereon, and the third to fourth electrodes 106 and 108 are held by the other finger to measure impedance of the human body. After measuring the body fat by combining the input data and displayed through the display unit 160, the measured body fat value wireless transmission and reception unit ( By transmitting the data so that it can be stored in the server of the base station through 170), the body fat can be easily measured at any time regardless of the location, and automatically transmitted to the base station server. The body fat value stored in the server can be used as clinical data.

Description

CELLULAR PHONE WITH BODY FAT ANALYZER}

The present invention relates to a mobile phone terminal for both body fat measurement, and more particularly, a body fat measurement combined device is always attached to a mobile phone terminal to carry, but usually used as a mobile phone terminal, it is possible to measure and display body fat when necessary Rather, the present invention relates to a mobile phone terminal for body fat measurement combined with a body fat value, which transmits its body fat value to a base station server and stores the data in a database.

With the development of industrial products necessary for human cultural life through the improvement of electronic application technology and semiconductor chip manufacturing technology, the mobile phone which many people carry is able to send and receive all information in text and voice without restriction and search the web information on the Internet. It is a situation that a variety of built-in functions to view and receive e-mail.

Recently, due to the rapid industrialization and improvement of living standards, he has been interested in obesity and adult diseases, so he always tries to use it as a basic examination data by grasping the changes of his / her human body components.

Body composition analysis refers to quantitative measurement of individual components such as water, protein, bone, and fat that make up the human body, and a device for measuring the body composition is also called a body composition analyzer.

Body fat is not only a major indicator of obesity, but also a cause of adult disease. In addition, the amount of water is closely related to the amount of muscle, the muscle mass is an important component of the body and the main component of the energy, the muscle mass in the body is an indicator of the nutritional status of the individual has a wide range of medical applications.

Therefore, there is a growing need to simply monitor the changes in body composition before going to a specialized clinic such as a hospital and undergoing a professional diagnosis in daily life to balance the diet or the human body.

As a method of analyzing body composition as described above, a method using bioelectrical impedance analysis which is inexpensive and harmless to the human body is widely used. The bioelectrical impedance method sends a weak current into the human body to calculate the amount of body fluid, muscle mass, body fat, etc. by using the measured value of the human body's electrical resistance or electrical impedance and information such as the height, weight, age, and gender of the subject. to be.

1 is a view showing a body composition measuring apparatus and method using a conventional bioelectrical impedance method.

As shown here, by attaching the electrodes 31, 32, 33, 34 to the right hand 10 and the foot 20 of the human body and inputting the age, weight, and height of the subject using the keyboard 50, the body composition is measured. After analyzing the body composition in the unit 40, the result value is output through the display screen 60 and the printer 70. In such a measurement method, there is a problem in that a separate process of attaching an electrode to a human body of a subject is required and the inconvenience of a subject to lie down is required for the measurement, and thus the space is restricted.

2 is a view showing another body composition measuring apparatus and method using a conventional bioelectrical impedance method.

As shown here, the electrodes 81, 82, 83, and 84 made of touch type using both hands 12 and 14 are intended for electrical connection with the human body. This method has the convenience of measuring impedance in a posture without attaching a separate electrode, but has a problem in that it is inconvenient to use while carrying.

The present invention has been created to solve the above problems, the object of the present invention is to remove the inconvenience of carrying and use the mobile terminal usually without regard to the place, it is easy to measure and display the body fat when necessary, The present invention provides a mobile phone terminal for body fat measurement, which transmits the measured body fat value to a base station server so that it can be used as a data for analyzing a change in body fat of a user.

1 is a view showing a body composition measuring apparatus using a conventional bioelectrical impedance method.

2 is a view showing another body composition measuring apparatus using a conventional bioelectrical impedance method.

Figure 3 is a block diagram showing a mobile phone terminal combined with body fat measurement according to the present invention.

4 to 7 are exemplary views showing the installation position of the electrode of the impedance measuring unit of the body fat measurement combined mobile phone terminal according to the present invention.

8 is a flowchart illustrating an operation procedure of the body fat measurement combined cellular phone terminal according to the present invention.

9 is a view showing the contact position of the impedance model and the electrode according to the present invention.

10 is an equivalent circuit diagram of an impedance model according to the present invention.

-Explanation of symbols for the main parts of the drawings-

100: impedance measuring unit 102, 104, 106, 108: first to fourth electrodes

110: amplifier 120: A / D converter

130: microcomputer 140: mode selection switch

150: keypad 160: display unit

170: radio transceiver 175: antenna

180: handset 185: handset

190: terminal body

The present invention for realizing the above object is a mode selection switch for selecting the mobile phone mode and body fat measurement mode, input of the user's height, weight, age, gender, etc. and various values for use as a mobile phone terminal A keypad, a handset for voice transmission in mobile phone function, a handset for voice reception and various signal sound in mobile phone function, a wireless transmitter / receiver for transmitting and receiving voice and measurement results with a base station through an antenna, Two electrodes in contact with the left hand and two electrodes in contact with the left hand are applied outside the mobile phone terminal to apply current through one electrode in contact with the right hand and one electrode in contact with the left hand, and the other electrode in contact with the right hand and the left hand, Impedance measuring unit for measuring the impedance of the human body by measuring the voltage through the other one electrode in contact, and Imp An amplifier that amplifies the output value of the duns measurement unit, an A / D converter for converting the output value of the amplifier to a digital value, and the input value of the keypad, the wireless transmitter / receiver, the handset and the receiver according to the state of the mode selection switch. The control unit performs an impedance measurement unit and receives a value of an A / D converter and a value of a keypad to analyze body fat, and a display unit for displaying an output value of the control unit.

In the above, the four electrodes of the impedance measuring unit are formed with first to second electrodes on the left and right side walls of the mobile phone terminal body to be contacted by the palm and fingers when holding the mobile phone terminal body, and the inside of the exposed part such as a handset or a handset. The third and fourth electrodes are formed at the outside and the outside thereof so as to be contacted by the fingers of the hand not holding the mobile phone terminal.

Referring to the operation of the present invention made as described above are as follows.

When the user wants to measure body fat while using the mobile phone terminal, the user selects the body fat measurement mode through the mode selection switch and inputs height, weight, age, and gender necessary for body fat analysis through the keypad, and then the mobile terminal having an impedance measuring unit. The first and second electrodes are contacted by the palms and fingers of the hand held by the finger, the third and fourth electrodes are held by the other finger, the impedance of the human body is measured, and the input data are synthesized to measure body fat. It is operated to display through, and to transmit the measured body fat value so that it can be stored in the server of the base station via the wireless transmitter and receiver.

In this way, changes in the body fat value stored in the server can be used as medical information.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only and the same parts as in the conventional configuration using the same reference numerals and names.

Figure 3 is a block diagram showing a mobile phone terminal combined with body fat measurement according to the present invention.

As shown here, a mode selection switch 100 for selecting a mobile phone mode and using the same function as a general mobile phone as a normal mobile phone, and for measuring body fat, selects a body fat measurement mode to measure body fat. When the user measures body fat, the user inputs the height, weight, age, and gender of the user, or when using as a mobile phone, the number and symbol for using the mobile phone, a keypad for using the call, end, and various functions (150 ), A transmitter 185 for converting a voice signal into an electric signal when performing a mobile phone function, and performing a voice transmission by converting an electric signal into a voice signal when performing a mobile phone function, and outputting various signals during operation of the device. Radio transmitter and receiver 170 for transmitting and receiving voice and data signals with the base station through the receiver 180, the antenna 175 ), The impedance measuring unit 100 for measuring the impedance of the human body with the first to fourth electrodes 102, 104, 106, and 108, the amplifier 110 amplifying the output value of the impedance measuring unit 100, and the amplifier 110. A / D converter 120 for converting the output value into a digital value, the input value of the keypad 150, the wireless transmitter and receiver 170, the handset 185 and the receiver 180 according to the selection of the mode selection switch 140 Control unit 130 to perform a mobile phone function and to control the impedance measuring unit 100 to receive the value of the A / D converter 120 and the value of the keypad 150 to analyze body fat, and the controller 130 The display unit 160 for displaying the output value of the.

4 to 7 are exemplary views showing the installation position of the impedance measuring unit electrode of the body fat measurement combined cellular phone terminal according to the present invention.

First, as shown in FIG. 4, the first to second electrodes 102 and 104 of the impedance measuring unit 100 are installed on the left and right side walls of the mobile phone terminal body 190, respectively, and the palms of the hand held when the mobile phone terminal is held. The fingers may be formed to be in contact with each other, and the third to fourth electrodes 106 and 108 may be formed inside and outside of the receiver 180 exposed to the outside, respectively.

In addition, as shown in FIG. 5, the first to second electrodes 102 and 104 of the impedance measuring unit 100 are respectively installed on the left and right side walls of the mobile phone terminal body 190 and the palm of the hand held when the mobile phone terminal is held. The fingers may be formed in contact with each other, and the third to fourth electrodes 106 and 108 may be formed inside and outside the transmitter 185 exposed to the outside, respectively.

In addition, as shown in FIG. 6, the first to second electrodes 102, 104, 106, and 108 of the impedance measuring unit 100 are formed on the left and right side walls of the mobile phone terminal body 190. The third and fourth electrodes 106 and 108 may be formed on the left and right side walls of the lower part of the mobile phone terminal body 190, respectively.

In addition, as shown in FIG. 7, the first to second electrodes 102 and 104 of the impedance measuring unit 100 are formed inside and outside the receiver 180 exposed to the outside from the mobile phone terminal, respectively. The fourth electrodes 106 and 108 may be formed inside and outside the transmitter 185, respectively.

In addition, the display unit 160, the mode selection switch 140, the keypad 150, the handset 185, the handset 180, the antenna 175, and the like that are exposed to the outside are configured in the same shape as a general mobile phone terminal.

The operation of the present embodiment made as described above will be described with reference to a flowchart showing an operation procedure of the body fat measuring cell phone shown in FIG. 8 as follows.

First, it is determined whether the user has selected the body fat measurement mode for measuring body fat by the bioelectric impedance method or the mobile phone mode for the mobile phone function (S10). In this case, when the mobile phone mode is selected, the mobile phone function is returned to step S10 of determining the selection of the mode selection switch 140 (S20). However, when the body fat measurement mode is selected, the height, weight, age, and gender of the user are input through the keypad 150 (S30).

In this case, since the keypad 150 can input characters such as numbers and symbols used in the mobile phone terminal, Korean characters and English characters, information about a user is directly input using the keypad 150.

When the height, weight, age, and gender of the user are input as described above, it is determined whether the user's body is in contact with all of the first to fourth electrodes 102, 104, 106, and 108 (S40). The determination of the measurement posture is determined by measuring whether the impedance measuring unit 100 has a closed circuit for supplying current through the first to fourth electrodes 102, 104, 106, and 108 and measuring a voltage. When the measurement posture is confirmed by the above method, the sine wave AC is applied to a closed circuit formed by any one of the first to second electrodes 102 and 104 and one of the third to fourth electrodes 106 and 108 connected through the human body. While applying a current, the impedance of the human body is measured by measuring a voltage difference between the other one of the first to second electrodes 102 and 104 and the other one of the third to fourth electrodes 106 and 108 connected through the human body. (S50).

Then, the amount of body water, body fat, and body fat percentage are calculated using the measured impedance value and the input height, weight, age, and gender (S60). Then, the body 160, body fat amount, and body fat percentage of the subject are displayed through the display unit 160.

Then, the body fat, such as body water amount, body fat amount, body fat percentage measured through the wireless transmission and reception unit 170 to transmit the signal for registration of the location of the mobile phone to the server of the base station to configure the database and mode selection switch ( The process returns to step S10 of detecting the state of 140 (S80).

The body fat measurement method using the bioelectric impedance method measured by the impedance measuring unit 100 will be described in detail with reference to FIG. 9 as follows.

The present invention will be described by way of example using a mobile phone terminal configured as shown in FIG.

As shown here, when the mobile terminal is gripped with the left hand as a method for obtaining the total impedance Za from the left wrist to the right wrist, the left palm is in contact with the first electrode 102 and the left fingers are second electrodes ( 104). In addition, the third electrode 106 installed at the inside and the outside of the receiver 180 is held with the right thumb, and the fourth electrode 108 is measured with the other finger.

At this time, Ra resistance is generated between the left palm and the left wrist which are in contact with the first electrode 102, and Rb resistance is generated between the left finger and the left wrist which is in contact with the second electrode 104. The Rc resistance is generated between the right thumb and the right wrist that are in contact with the third electrode 106, and the Rd resistance is generated between the right finger and the right wrist that is in contact with the fourth electrode 108.

In this manner, the first to second electrodes 102 and 104 are held by the left hand and the first to third electrodes 106 and 108 are held with the right thumb and the other fingers holding the third to fourth electrodes 106 and 108. By configuring a closed circuit and applying a sinusoidal alternating current, the voltage is measured between the second electrode 104 and the fourth electrode 108 to calculate the total impedance Za of the human body from the applied current value and the measured voltage value. do.

That is, as shown in the equivalent circuit diagram of the impedance model of FIG. 10, a sinusoidal alternating current is applied to a closed circuit consisting of Ra, Zaa, and Rc, and the voltage between Rb, Zaa, and Rd is measured. Ra, Rb, Rc, and Rd have no effect when measuring impedance as the Zaa part. That is, the Ra and Rb resistances generated between the first and second electrodes 102 and 104 and the left wrist, and the Rc and Rd resistances generated between the third and fourth electrodes 106 and 108 and the right wrist, measure the overall impedance Za. It will not affect.

The total body water (TBW), body fat (FAT), and percent body fat percentage (% FAT) are calculated from the measured impedance and the input height (Ht), weight (Wt), age, and gender. 160).

At this time, the body composition (TBW), body fat (FAT), and body fat percentage (% FAT), which are human components, are calculated as follows from the measured impedance (Zaa), height (Ht), and weight (Wt).

The amount of moisture contained in the human body is proportional to Ht ² / Zaa, where Zaa is the impedance value of the human body. In the case of the general public, the body water distribution of each part is almost proportional to the amount of body fluid from the impedance of the arm can be calculated.

That is, it may be expressed as Equation 1 below.

TBW = CHt ² / Zaa

Here, C is a constant that satisfies Equation 1 as determined by regression analysis.

In order to increase the accuracy of the body water distribution of Equation 1, the body water volume of the whole body may be calculated using a regression analysis method using factors such as weight, age, and gender.

Since body fat (FAT) has very low moisture content among the constituents of the human body, it ignores the amount of water present in body fat, and other components (FFM; Fat Free Mass) contain about 73% water. It is represented by Equation 2.

FFM = TBW / 0.73

The body fat amount (FAT) is a value obtained by subtracting the component (FFM) other than fat from the weight (Wt), and is represented by Equation 3, and the percent body fat (% BF) can be obtained as shown in Equation 4.

FAT = Wt-FFM

% BF = (FAT / Wt) × 100

The body water volume (TBW) is calculated by Equation 1 from the impedance Zaa of the human body and the input height (Ht), weight (Wt), age, sex, etc. measured as described above, and the body fat mass (Equation 3) FAT), the body fat percentage (% BF) is calculated by Equation 4, and then displayed on the display unit.

In addition, the measured body water volume (TBW), body fat mass (FAT), and body fat percentage (% BF) are transmitted to the server of the base station together when transmitting a signal for location registration of the mobile terminal through the wireless transmitter / receiver 170. You can create a database so that you can use it to analyze the changes in body fat.

As described above, the present invention is configured to include a body fat measuring device for measuring the body fat in a mobile terminal always carry, it is easy to carry, there is an advantage that can easily measure body fat at any time regardless of place.

In addition, the body fat value measured through the mobile phone terminal is automatically transmitted to the server to configure the database has the advantage that can be used as clinical data by analyzing the changes in body fat value of users.

Claims (5)

A mode selection switch for selecting a mobile phone mode and a body fat measurement mode; A keypad for inputting height, weight, age, gender, etc. of the user and various values for use as a mobile phone terminal; A transmitter for voice transmission when the cellular phone function; A handset for receiving voice and outputting various tones when the cellular phone function; A wireless transmitter and receiver for transmitting and receiving voice and measurement results with the base station through an antenna; Two electrodes in contact with the right hand and two electrodes in contact with the left hand are installed on the outside of the mobile phone terminal to apply current through one electrode in contact with the right hand and one electrode in contact with the left hand, and in contact with the right hand. Impedance measuring unit for measuring the impedance of the human body by measuring the voltage through the other electrode and the other electrode in contact with the left hand, An amplifier for amplifying an output value of the impedance measuring unit; An A / D converter for converting the output value of the amplifier into a digital value; According to the state of the mode selection switch, and performs the mobile phone function through the input value of the keypad, the wireless transmitter and receiver, the handset and the handset, the impedance measuring unit to control the value of the A / D converter and the value of the keypad A control unit configured to receive the input and analyze body fat; A display unit displaying an output value of the control unit; Body fat measurement combined mobile terminal, characterized in that consisting of. The method of claim 1, wherein the impedance measuring unit comprises a first to second electrodes formed on the left and right side walls of the mobile phone terminal body, respectively, and a third to fourth electrodes formed on the inside and the outside of the mobile phone handset, respectively. Body fat measurement combined use mobile terminal. The method of claim 1, wherein the impedance measuring unit comprises a first to second electrodes formed on the left and right side walls of the mobile phone terminal body, respectively, and a third to fourth electrodes formed on the inside and the outside of the mobile phone handset, respectively. Body fat measurement combined use mobile terminal. The method of claim 1, wherein the impedance measuring unit comprises first to second electrodes formed on the left and right side walls of the lower part of the mobile phone terminal body, and third and fourth electrodes formed on the left and right side walls of the upper part of the mobile phone terminal body, respectively. Body fat measurement combined use mobile terminal. The method of claim 1, wherein the impedance measuring unit comprises first to second electrodes formed on the inside and the outside of the mobile phone handset, and third to fourth electrodes formed on the inside and the outside of the mobile phone handset, respectively. A body fat measuring combined use mobile terminal.