KR20060040566A - Bmi height and weight scales - Google Patents

Abstract

The present invention relates to a body mass index kidney weight which can display the body mass index (BMI) by automatically measuring the height using ultrasound and calculated with the measured weight value. The kidney weight scale of the present invention includes a distance sensing mechanism unit for measuring the height is installed on the body side of the scale to transmit a distance detection signal (ultrasound, etc.) to the upper side and receive the reflected signal (ultrasound); And a measurement bar that reflects a distance detection signal (ultrasound) while measuring the height of the body horizontally at the position of the user's head to measure height by measuring body weight and height at the same time. I can display it. Here, the distance detecting mechanism part is composed of an ultrasonic sensor for transmitting and receiving ultrasonic waves, and a sliding means or an extensible means for sliding the ultrasonic sensor forward and backward from the main body, and the measuring bar is brought to the wall by itself. It consists of measuring by placing the measuring bar horizontally above the subject's head or by measuring it, or by using the guide rail attached to the wall and the guide rail attached to the wall, and by moving the guide rail up and down automatically or manually. It may be composed of a reflector that can reflect. Therefore, the body mass index kidney weight according to the present invention measures only the reflection of the ultrasonic wave transmitted from the ultrasonic sensor by the measurement bar in a horizontal state, so that accurate measurement values can be obtained, and the ultrasonic sensor is operated by extending the ultrasonic sensor. It is easy to measure even people who are obese or tall and can be implemented at low cost.

Body mass index, height measurement, weight measurement, measurement bar, ultrasound, sliding, reflex, weight scale

Description

BMI height and weight scales

1 is a schematic diagram showing a concept of body mass index kidney weight according to the present invention,

2 is a block diagram of a body mass index kidney weight according to the present invention,

3 is a flow chart showing a height / weight measurement procedure according to the present invention,

Figure 4 is a perspective view of the body mass index stretch weight in accordance with an embodiment of the present invention,

5 is a measurement state diagram of the body mass index kidney weight according to an embodiment of the present invention,

6 is a measurement bar of another embodiment of the present invention,

7 is an ultrasonic apparatus part of another embodiment of the present invention.

8 is a measurement state diagram of another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: ultrasonic height measuring unit 12: ultrasonic sensor

14: measuring bar 20: MCU

30: weight measuring unit 40: display unit

410: main body 412: display unit

421: slider 420: ultrasonic sensor

423 sound horn 430 measurement bar

431: guide rail 432: reflector

The present invention relates to a body mass index kidney weight, and more particularly, to a body mass index kidney weight which can display the body mass index by automatically measuring the height using a distance sensor and calculated together with the weight value measured.

Recently, with the Westernization of diet, obesity has emerged as a social problem, and interest in various health-related programs is increasing. Obesity-related programs require weight to be constantly measured, but what is really important in relation to health is not just weight (body weight), but body mass index (BMI), which is derived from the relationship between the height and height of the body. Body Mass Index). Here, the Body Mass Index (BMI) is a measure of obesity and health that is widely used worldwide because of its simplicity and relevance to body mass status. BMI) = weight / height squared (m) ".

According to the statistics, the calculated body mass index is judged to be underweight if less than 20, normal weight if 20-24, overweight if 25-30, or obese if 30 or more. In addition, the disease is also known to increase in proportion to the BMI index.For example, if the BMI index is 26, the risk of adult heart disease is twice as high as in women and men is 1.5 times higher than in 21. The risk of women was 8-fold and men were 4-fold, and the risk of cholelithiasis and hypertension was increased 2-3 times in both sexes. More specifically, when BMI is higher than 25, it is a danger signal, and high BMI is likely to cause lifestyle diseases such as hyperlipidemia, high blood pressure, and diabetes, and when BMI is higher than 27, it is easy to develop diabetes, and when BMI is higher than 29, high cholesterol is .

Conventional weight scales that can measure such a body mass index is a digital body mass index weight scale registered in Utility Model Registration No. 20-0356627, which is uncomfortable because the user enters the height value directly In the case of adolescents, it is difficult to calculate an accurate body mass index (BMI) because they do not know the exact value of the height.

In order to solve this problem, a technique for automatically measuring height using an ultrasonic sensor is disclosed in Korean Patent No. 10-0452534. However, such a prior art has an ultrasonic sensor installed on a subject's head to extend the signal reflected from the head. The head is not horizontal but has a gentle curved shape, so it is difficult to accurately measure the height, and the mechanical part to implement is also large, making it difficult to use in general homes due to the inconvenience of moving installation.

In order to solve the above problems, the present invention provides a body mass index kidney weight which can accurately calculate and display weight-related information such as body mass index while simultaneously measuring an individual's changed height and weight in a single procedure. Its purpose is to.

In order to achieve the above object, the device of the present invention, a height measuring unit for measuring the height using a distance sensor, a weight measuring unit for measuring the weight by detecting the load, and the process according to the height measurement and weight measurement The control unit calculates a body mass index by using the measured weight value and height value, calculates various types of weight-related information, and the operation state, measured values, various calculated values, and weight information under the control of the control means. In the weight scale having a main body consisting of a display unit for displaying the back, the height measuring unit,

A distance sensing mechanism unit installed at the body side of the scale to transmit a distance sensing signal (ultrasound) to the upper side and to receive the reflected distance sensing signal (ultrasound); And it is characterized in that it comprises a measuring bar to measure the height by reflecting the distance detection signal (ultrasound) while being horizontal to the body of the scale at the user's head position.

In addition, the distance detecting mechanism unit is an ultrasonic sensor for transmitting and receiving ultrasonic waves, and sliding so as to be able to slide or extend the ultrasonic sensor forward from the main body. It is composed of an extension means and a sound horn for concentrating ultrasonic waves, and the sliding means can be conveniently inserted into or removed from a double bar or rod.

The measuring bar may include a guide rail attached to a wall, and a reflecting plate that is horizontally positioned at a user's head position by moving up and down automatically or manually by riding the guide rail and reflecting a distance detection signal (ultrasound). A vertical support plate supported on a vertical surface such as a wall to keep the reflection surface horizontal, a reflection plate connected horizontally to the vertical support plate to reach a user's head position, and reflecting ultrasonic waves, and holding the hand by the user It may consist of a handlebar for adjusting to its height.

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

1 is a schematic diagram showing the concept of the body mass index kidney weight according to the present invention, Figure 2 is a block diagram of the body mass index kidney weight according to the present invention, Figure 3 shows the height / weight measurement procedure according to the present invention Flowchart.

Body mass index kidney weight according to the present invention, as shown in Figure 1, the height measuring unit 10 for measuring the height using a distance sensor, the weight measuring unit 30 for detecting the weight to detect the load, height Under the control of the microcomputer (20) and microcomputer (20), the body mass index is calculated using the calculated weight value and height value, and various weight-related information are calculated. The display unit 40 displays an operation state, measured values, various calculated values, weight information, and the like. Here, as the distance sensor, various types of distance measuring sensors such as an ultrasonic sensor, an infrared sensor, and a laser sensor may be used. In the embodiment of the present invention, an ultrasonic sensor will be described as an example.

In more detail, the body mass index kidney weight of the present invention, as shown in FIG. Measurement bar 14, load cell or strain gauge 31, reference voltage generator 32, amplifier 33, low pass filter 34, A / D converter 35, microprocessor 20 And a display unit 40.

Referring to FIG. 2, the strain gauge 31 or the load cell receives the voltage from the reference voltage generator 32 and converts the weight into an electrical signal of several mV when the user climbs on the measurement pad, and the amplifier 33 After amplifying the electric signal of mV to approximately 0 ~ 2V, the low pass filter 34 removes the noise and provides it to the analog-to-digital converter 35. The analog-to-digital converter 35 receives a reference voltage from the reference voltage generator 32, converts an analog weight signal into digital data, and provides the same to the microprocessor 20.

On the other hand, for the ultrasound height measurement, the user stands upright on the scale and adjusts the measurement bar 14 to the head position. The ultrasonic transmitter 12T generates ultrasonic waves and emits them upwards, and the ultrasonic receiver 12R receives ultrasonic waves reflected from the measuring bar 14 by ultrasonic waves emitted by the ultrasonic transmitter 12T, converts them into electrical signals, and then again. Convert to digital data.

The microprocessor 20 calculates the weight value by calculating the digital data input from the analog-to-digital converter 35, calculates the height by calculating the ultrasonic data input from the ultrasonic sensor 12, and uses the weight value and the height. The body mass index is calculated (313). In addition, the body mass index is used to determine normal, overweight, obesity, and the like, and various weight-related information is calculated and displayed on the display unit 40. In other words, the body mass index can be easily calculated from the weight value and the height value, and the determination of underweight, overweight, normal, expense, middle obesity, and the like can be immediately displayed.

The display unit 40 is composed of LEDs and LCDs to display various weight-related information and operation states calculated by the microprocessor 20.

The procedure for measuring body weight using the body mass index kidney weight configured as described above will be described with reference to FIG. 3.

When the user climbs on the scaffold of the body mass index kidney weight according to the present invention to measure height and weight, power is supplied to each part (S301, S302). In the embodiment of the present invention, the power is supplied only when the user stands on the scaffold for power saving, but in some cases, the power may be always on.

When the power is supplied, the weight is converted into an electrical signal by the strain gauge 31 or the load cell, amplified by the amplifier 33 and then converted into digital data by the analog-to-digital converter 35 to be microprocessor 20. Is delivered to. The microprocessor 20 accurately calculates the weight value according to a predetermined algorithm (S303 to S306).

On the other hand, the user extends the ultrasonic generator for the kidney measurement. The ultrasonic generator may be extended forward from the inside of the body of the scale in a slide manner, may be manually stretched, or may be configured to be automatically stretched by button operation (S307).

Then the user stands upright to operate the measuring bar 14 to match the upper portion of the head horizontally (S308). The measurement bar S308 may be configured as a movable mechanism and operated by a person to be measured, or may be manually or automatically operated after being attached to a wall using a guide rail.

When the operation of the ultrasonic sensor 12 and the measuring bar 14 is completed as described above, the ultrasonic waves radiated upward from the ultrasonic transmitter 12T are reflected by the measuring bar 14 and returned to the ultrasonic receiver 12R. The received ultrasonic wave is converted into an electrical signal and then digitally converted and transmitted to the microprocessor 20, and the microprocessor 20 calculates a user's extension value using the data (S309 to S312).

Subsequently, the body mass index is calculated using the calculated weight value and height value, and normal, overweight, obesity, and the like are determined, and various information related to the weight is obtained and displayed through the display unit 40 (S313 and S314).

When the measurement is over and the user gets off the scaffold, the power is turned off after a predetermined time delay (S315 to S317).

[Example]

Figure 4 is a perspective view of the body mass index stretch weight in accordance with an embodiment of the present invention, Figure 5 is a state diagram of the body mass index stretch weight in accordance with an embodiment of the present invention.

Body mass index stretch weight according to an embodiment of the present invention is the body 410 including the display unit 412 and the scaffold, the case, the PCB embedded in the case, as shown in Figure 4, the user is inserted into the body Ultrasonic mechanism unit 420 extending forward in accordance with the operation of the guide rail 431 fixed to the wall and the guide rail 431 is moved up and down in accordance with the user's height in the measurement can reflect the ultrasonic wave Bar 432. The ultrasonic mechanism unit 420 includes two bar-shaped sliders 421 sliding back and forth, an ultrasonic sensor 422 installed at the end of the slider 421 for transmitting and receiving ultrasonic waves, and a sound horn for concentrating the ultrasonic waves ( 423).

Since the ultrasonic sensor unit 420 according to the exemplary embodiment of the present invention may be slid back and forth by a sliding method, a stomach or a large body or a western person may be easily measured. At this time, the upper measurement bar can be implemented to be extended in proportion to the elongation length of the lower ultrasonic sensor unit as necessary.

In addition, in one embodiment of the present invention, the guide rail 431 does not need a magnetic function for knowing the measurement length as it is conventional, so that it is simply implemented to be attached to the appropriate position.

According to one embodiment of the present invention configured to measure the height as shown in Figure 5, after extending the ultrasonic mechanism 420 to the appropriate length from the main body 410 of the body mass index stretching weight on the scaffold Climb up to operate the measurement bar 430 to match the user's head. In this state, the ultrasonic transmitter of the ultrasonic sensor generates ultrasonic waves, transmits them to the upper side, receives the ultrasonic waves reflected from the measurement bar 432, and transmits the ultrasonic waves to the main body 410.

Therefore, the body mass index kidney weight according to an embodiment of the present invention can accurately and conveniently measure a user's height by using ultrasound and at the same time calculate a BMI by measuring a user's weight, It may be displayed through the display unit 40.

[Other Embodiments]

Fig. 6 is a measurement diagram of another embodiment of the present invention, Fig. 7 is an ultrasonic mechanism part of another embodiment of the present invention, and Fig. 8 is a measurement state diagram.

As shown in FIG. 6, the measurement bar according to another embodiment of the present invention is supported on a vertical surface such as a wall and the like to support a vertical support plate 632 and a horizontal portion of the vertical support plate 632 to keep the reflection surface horizontal. It is connected to the horizontal position and can reach the user's head position and the reflection plate 634 for reflecting the ultrasonic wave, and the user is holding the hand by the handle bar 636 for adjusting the reflection plate 634 to his height. Since the measurement bar 630 according to another embodiment is portable, there is no need to fix the wall or the like so that the measurement position can be freely moved and can be measured alone.

Meanwhile, as illustrated in FIG. 8, a simple T-shaped measuring bar 630 having no handle and having a vertical support plate 632 and a horizontal reflector 634 may help one person measure height and weight by helping another person. It may be. This method is appropriate when parents measure their children's height or weight at home, or when teachers measure students at school.

In addition, the ultrasonic device of the body mass index kidney weight according to another embodiment of the present invention may be implemented as a rod-shaped slider as shown in FIG. Referring to FIG. 7, the ultrasound apparatus 720 according to another embodiment of the present invention includes a bar-shaped slider 721 and an ultrasonic sensor 722 installed at one end of the bar-shaped slider 721. At this time, the rod-shaped slider 721 may be automatically extended according to the operation of the button 714 of the main body. Reference numeral 712 is a display unit.

As described above, the body mass index elongation weight scale according to the present invention measures precisely because only the signal (ultrasonic wave) transmitted from a distance measuring sensor such as an ultrasonic sensor or an infrared sensor is reflected by a measuring bar in a horizontal state. Values can be obtained, and the distance (ultrasound) sensor can be moved forward or backward by sliding, making it easy to measure even people who are obese or tall, and can be implemented at a lower cost than conventional bench-type kidney weights. Easy to install

Claims (7)

The height measuring unit that measures height using a distance sensor, the weight measuring unit that measures weight by detecting a load, and processes the process according to height measurement and weight measurement, and using the measured weight value and height value In the weight scale having a main body consisting of a control unit for calculating the body mass index and calculating various weight-related information, and a display unit for displaying the operation state, measured values and various calculated values, weight information, etc. under the control of the control means, The height measuring unit, A distance sensing mechanism unit installed at the body side of the scale to transmit the distance sensing signal upward and to receive the reflected distance sensing signal; And Body mass index kidney weight, characterized in that it comprises a measurement bar to measure the height by reflecting the distance detection signal while being horizontal to the body of the scale at the user's head position. According to claim 1, wherein the distance detection mechanism portion Distance sensors such as ultrasonic sensors for transmitting and receiving ultrasonic waves and infrared sensors for transmitting and receiving infrared signals; And a sliding or other stretching means configured to extend the distance sensor forward from the main body. 3. The body mass index kidney weight system according to claim 2, wherein the ultrasonic sensor further comprises a sound horn for concentrating the ultrasonic waves. The method of claim 2 wherein said stretching means Body mass index kidney weight, characterized in that consisting of a double rod, rod-shaped rods and the like. The method of claim 1, wherein the measurement bar Guide rails attached to the wall, Body mass index kidney weight, characterized in that composed of means for horizontally moving to the position of the user's head to reflect the distance detection signal (ultrasound) by moving up and down by the guide rail automatically or manually. The method of claim 1, wherein the measurement bar A vertical support plate supported on a vertical surface such as a wall to keep the reflection surface horizontal, The body mass index kidney weight is connected to the vertical support plate horizontally and can reach the user's head position and reflecting the distance detection signal (ultrasound) characterized in that the body mass index stretch weight. The method of claim 6, wherein the measuring bar Body mass index stretch weight, characterized in that it further comprises a handle bar for holding by the user by hand to adjust the reflector to his height.

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