JP3080400U - Body fat meter - Google Patents

Abstract

(57) [Problem] To provide a body fat measuring device capable of accurately measuring body fat and reducing cost. A body having a first contact end and a second contact end. A circuit is composed of the main body and the measurer. The measurer is a storage battery. The microprocessor has a measurement unit 21, a comparison unit 22, and a calculation unit 23. The measurement unit 21 measures the length of the charge / discharge time. The comparison unit 22 compares and arranges the input and output signals. The calculation unit 23 converts the compared signals. The display curtain 30 is electrically connected to the microprocessor, and displays the measurement result. The power supply provides the required power. The signals of the two contact points of the measurer are detected, compared with the built-in program, calculated and converted, and the measured body fat content of the human body is revealed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a body fat measuring device.

[0002]

[Prior art]

 With the improvement of material living standards and the emphasis on health, humans use various measuring instruments during vacations to detect the current state of the body and adjust their physical condition. A common measurement is body fat measurement. Generally, commercially available body fat measuring devices use the principle of a method of measuring current resistance and a method of measuring using near-infrared rays.

[0003]

[Problems to be solved by the invention]

 However, the conventional body fat measuring device has the following disadvantages. (A) The method of measuring the current resistance is, as shown in Patent No. 87116861 of the Republic of China, by measuring the resistance generated when the human body is made to be a resistor, a current is introduced, and the current contacts body fat. The body fat content of the human body is measured. However, a large measurement error is generated due to the difference in the attitude of the operator. In general, the correct use posture is that both hands are upright, and both hands and the body are arranged at an angle of 90 degrees. At this time, a current flows through the body, and the shortest path becomes the highest path, and an accurate measurement value is obtained. When the arm is bent, the current flows through a variable path, so the variables are increased and affect the measurement results. Although the measurement posture is specified in the precautions in the instruction manual, since many users do not observe the precautions, measurement accuracy is low.

(B) As a method of measuring using near-infrared rays, a ray method is used as shown in Japanese Patent No. 78100882 of the Republic of China. However, the more complex structure makes it inconvenient to manufacture, expensive, and difficult to accept by consumers. Therefore, an object of the present invention is to provide a body fat measuring device capable of accurately measuring body fat and reducing costs.

[0005]

[Means for Solving the Problems]

 According to the body fat measuring device of the present invention, the body fat measuring device has a main body having a first contact end and a second contact end. The first contact end and the second contact end are brought into contact with the person to be measured, and a circuit is constituted by the main body and the person to be measured. The measurer is a storage battery. The microprocessor has a measurement unit, a comparison unit, and a calculation unit. The measurement unit measures the length of the charge / discharge time. The comparison unit compares and arranges the input and output signals. The computing unit transposes the compared signals. The display curtain is electrically connected to the microprocessor and displays the measurement results. Power supplies provide the necessary power. Using the fact that the magnitude of the resistance (fat) inside the human body is inversely proportional to the magnitude of the capacity of the battery, the signals of the two contact points of the measurer are detected, compared with the build-in program, and calculated. The converted and measured body fat content of the human body is revealed. Since the human body is a capacitor, the measurement result is not affected by the operation posture. The measurement result does not change due to the change in the current path. Also. The production cost is lower than that of the line type device.

[0006]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, according to the body fat measuring device 100 according to one embodiment of the present invention, the main body 10, the microprocessor 20, the display screen 30, and the power supply (not shown in the drawings) are connected. Prepare.

[0007] Electrode pieces are fixedly installed on the left and right sides of the surface of the main body 10, and the electrode pieces have a first contact end 11 and a second contact end 12. The contact end is in contact with the person to be measured, and a circuit is formed by the measuring instrument 100 and the person to be measured. The power source is a battery and provides the necessary power when the meter 100 is measured.

The microprocessor 20 is composed of a number of electronic elements such as a measuring unit 21, a comparing unit 22, and a calculating unit 23. The measurement unit 21 detects input and output signals of the first contact end 11 and the second contact end 12 by a circuit, and integrates the detected input and output signals.

The comparison unit 21 is a built-in program of the microprocessor 20 and compares and arranges input and output signals. The calculation unit 23 detunes and converts the compared and arranged signals. The display screen 30 is a liquid crystal product, is electrically connected to the microprocessor 20, and is installed on the main body 10. The revealing screen 30 shows the measurement result numerically.

As described above, the components of the body fat measuring device 100 are arranged. The measurement principle and measurement method are shown below. Since human tissues, such as muscles, bones, and blood, contain moisture and are conductive, the human body can be used as a capacitor. When the measurer contacts both ends of the measuring instrument 100, a condenser load is configured. The fingers of both hands of the measurer are pressed against the first contact end 11 and the second contact end 12, thereby forming a circuit through which current can pass.

[0011] When an electric storage device is in a state of passing electricity or in a charging and discharging state, a resistance action is generated. At this time, the resistance is the fat of the human body. In an electric circuit, the magnitude of the resistance value and the magnitude of the stored value are inversely proportional. When the body fat content of the human body is large, the charge value is small, and the charge / discharge time of the charge value is short. When the body fat content of the human body is low, the stored value is large, and the charge / discharge time of the stored value is long.

As shown in FIG. 1 to FIG. 3, when the body fat is measured by the measurer 100 using the above-described principle, the left and right hands of the measurer indicated by points A and B in the drawing. A condenser load is configured at the position where the finger presses. At this time, the microprocessor 20 transmits a plurality of signals having different frequencies within a predetermined number of seconds after the start of the measurement. The measurement unit 21 measures the input and output signals and the charge / discharge time of two contact points of a measurer (capacitor) with signals of different frequencies. All signals are integrated, an average is calculated, and the integrated signal is again compared with the signal in the comparison unit 22. The calculation unit 23 converts the compared signal into data, displays the measured body fat content on the display screen 30, and the measurement operation is completed.

[Brief description of the drawings]

FIG. 1 is a schematic view illustrating a body fat measuring device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an electronic circuit of the body fat measuring device according to one embodiment of the present invention.

FIG. 3 is a diagram illustrating an electronic circuit of the fat measuring device according to the embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body 11 1st contact end 12 2nd contact end 20 Microprocessor 21 Measurement unit 22 Comparison unit 23 Calculation unit 30 Display curtain 100 Measuring instrument

Claims (1)

[Utility model registration claims] 1. A body fat measurement system in which a circuit is formed using a human body as a battery, and the body fat is measured using a relationship in which the capacity of the battery is inversely proportional to the body fat content approximated by resistance. A measuring device, comprising: a contact point at both ends with which a measurer makes contact; and a revealing screen that compares a signal detected by the contact with a built-in program, calculates and converts the signal, and displays the fat content of the human body. And body fat measuring device.