JPH04364426A - Weight meter - Google Patents

Abstract

PURPOSE:To promote a health management by checking a self fatness simply and easily as needed simultaneously when weighing by a scale. CONSTITUTION:A CPU 22 calculates a fatness of a person to be measured from a fatness classification data which is stored in a fatness memory portion 30 responding to an input of weight and height data which are actually measured and then displays the result of calculation, namely the fatness, on a fatness display 10. Also, an ultrasonic wave from a device for transmitting and receiving the ultrasonic wave of a height sensor 12 is transmitted toward an upper direction from a stand 4 for placing feet and is reflected in reference to a head portion of the person to be measured. On the other hand, the CPU 22 calculates the height of the person to be measured based on a time difference between a transmission wave of the ultrasonic wave and the reflection. A height display 8 displays the height which was obtained by the operation.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to weight scales.

0002

BACKGROUND OF THE INVENTION The degree of obesity, which is an important indicator of health management, is usually determined from the correlation between body weight and height. There is a so-called obesity table that shows such correlations in a table, so to find out your own obesity level, measure your weight with a scale and apply the measured weight and your height to the table. can be easily known.

0003

[Problem to be solved by the invention] By the way, apart from height, weight changes considerably on a daily basis, so when you want to know your own obesity level, you should carry an obesity scale in your hand and usually place it in the changing room. It is a hassle to have to go all the way to the scale where it is located.

[0004]Also, although people may be concerned about their own obesity when they take off their clothes to take a bath and measure their weight using a scale, they do not usually carry an obesity chart with them when taking a bath.
There are fewer opportunities to check your obesity level.

[0005] In this way, even if people are concerned about their obesity level, it is troublesome to check it, and the chances of checking it are reduced, which is not at all desirable from the standpoint of improving health management.

[0006] Accordingly, in the present invention, when measuring body weight with a scale, it is possible to easily and easily check one's own obesity level at the same time if necessary, thereby promoting health management. The purpose is to

[0007]

[Means for Solving the Problems] In order to achieve such an object, in the weight scale according to claim 1 of the present invention,
In response to the input of the obesity degree storage unit (30) in which the degree of obesity of the human body is classified and stored based on the correlation between body weight and height, and the measured body weight data and height data of the person to be measured (14), a CPU (22) that calculates the obesity degree of the subject (14) from the obesity degree storage unit (30); It is characterized by comprising an obesity degree indicator (10) that displays the obesity degree.

The weight scale according to claim 2 of the present invention further includes a height sensor (12) and a height display (8) in addition to the height sensor (12).
) is to measure the height of the person to be measured (14),
The CPU (22) calculates the height of the person to be measured (14) based on the output of the height sensor (12), and the height indicator (8) is arranged on the footrest (4). It is characterized in that the calculation result is displayed.

[0009]

[Operation] According to claim 1, in response to the input of the measured weight data and the height data, the CPU (22) selects the obesity degree classification data stored in the obesity degree storage section (30) from the obesity degree classification data stored in the obesity degree storage section (30). ), and the obesity degree that is the calculation result is displayed on an obesity degree display (10). Therefore, the person to be measured (14) can know his/her body weight as well as the degree of obesity.

In claim 2, the CPU (22) determines the height of the person (14) based on the detection output of the height sensor (12).
), and the height display (8) displays the height as the result of the calculation. Therefore, the person to be measured (14) can know his/her weight and obesity degree as well as his/her height at the same time.

[0011]

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

FIG. 1 is a side view of a weight scale according to an embodiment of the present invention. In the weight scale 2 shown in FIG. 1, 4 is a footrest. A weight indicator 6, a height indicator 8, an obesity indicator 10, and a height sensor 12 are provided on the footrest 4, respectively.

FIG. 2 is for explaining the height sensor 12, and shows a weight scale 2 and a person 14 to be measured. The height sensor 12 in FIG. 2 is composed of an ultrasonic transducer (
In the height sensor 12 of a), the ultrasonic wave a is transmitted upward from the footrest 4, and is reflected by a reflecting plate 18 extending horizontally on the cap 16 placed on the head of the person to be measured 14. The transmission time t1 of the ultrasonic wave a and the reception time t of the reflected wave at the height sensor 12 are as follows.
Height data is obtained by utilizing the fact that the time difference Δt (=t2 - t1) from 2 corresponds to the height h of the person to be measured 14, and the height sensor 12 in (b) also uses a footrest. Ultrasonic wave a is transmitted upward from 4, and from the time difference Δt between the sending time t1 and the receiving time t2, the measured person 1
However, unlike in (a), the height data of person 1 is obtained after the ultrasound b is reflected off the ceiling 20.
The ultrasonic waves a reflected by the reflector 18 of the cap 16 on the head of the person 4 are reflected again by the ceiling 20 and then returned to the height sensor 12, and The height H is required as data for obtaining data on the height h of the person to be measured 14.

FIG. 3 is a block diagram showing the internal structure of the weight scale. A microcomputer is composed of a CPU 22, a ROM 24, and a RAM 26. ROM24 is CP
A program defining the operating procedure of U22 is stored. RAM 26 is for temporarily storing data. The CPU 22 has a plurality of input/output ports p1 to p7. p1 is an input/output port to which the driving output for driving the ultrasonic transducer is output and the reception input of the ultrasonic transducer is input, and p2 is an input/output port for transmitting ultrasonic waves from the ultrasonic transducer. This is an input/output port connected to a timer 28 for measuring the time difference between the time t1 when the wave is received and the time t2 when the wave is received. Therefore, the input/output at the input/output ports p1 and p2 is for obtaining data on the height h of the person to be measured 14. p3 is an input/output port to which measured weight data from a weight sensor (not shown) is given, and data of the weight w of the person to be measured 14 is inputted. p4 is an input/output port to which ROM24 is connected, and p5
is the input/output port to which the RAM 26 is connected, p
6 is an input/output port to which the obesity degree storage section 30 is connected, and p7 is an input/output port to which the display drive section 32 is connected.

The obesity degree storage unit 30 stores the obesity degree of the human body classified based on the correlation between body weight and height. For example, as a classification, subjects with a height of hhh1 to hhh2 cm belong to the main category ■, and in that main category ■, subjects with a weight of xx1 to xx2 kg have an obesity degree of y.
Belongs to sub-category ■-a, which is 1%, and has a weight of xx2 to xx
Subject No. 3 belongs to subclass ■-2 with an obesity degree of y2%, and so on, similarly, the weight ranges from xxn to xx(n+1
) kg belongs to subclass ■-n whose obesity degree is yn%. In addition, main classifications are set such that subjects with a height of hhh2 to hhh3cm belong to the main category ■, and subjects with a height of hhh3 to hhh4 belong to the main category ■, and each main category has its own subclassification. I will set it up. In this way, the obesity degree of the human body is stored in the obesity degree storage unit 30 in a detailed classified manner.

The display drive unit 32 is configured to drive the weight display 6, height display 8, and obesity level display 10, respectively, in response to a display command input from the CPU 32.

The operation of the CPU 32 will be explained with reference to the flowchart in FIG. 4. When the power is turned on, step n
In step 1, it is determined whether the weight is displayed. This power source is configured such that, for example, when the person to be measured 14 stands on the footrest 4, the power switch is automatically turned on by the weight w of the person to be measured 14. When it is determined that the power is turned on, in step n2, the CPU 32 stores the weight w of the person to be measured 14 in the RAM 26 based on the weight measurement data from the input/output port p3.
At the same time, the weight w is displayed on the weight display 6 via the display drive section 32. And step n3
If it is determined that the height is to be displayed automatically or by an operation input to set the height measurement mode of the person to be measured 14 (for example, by operating an operation switch not shown), the CPU 32 changes the input/output in step n4. port p
The height sensor 12, which is an ultrasonic wave transmitter/receiver, is driven to emit ultrasonic waves via the input/output port p2, and the timer 28 is started to measure time at time t1 via the input/output port p2. At this time, since the person to be measured 14 is wearing the cap 16, the emitted ultrasonic waves are reflected by the cap 16 in (a) of FIG. 2, and reflected by the ceiling 20 and the cap 16 in (b). It is reflected and returns to the ultrasonic transducer at a time t2 corresponding to the height h of the person to be measured 14. The received ultrasonic waves are input to the CP via the input/output port p1.
Since the wave is given to U32, the CPU 32 receives the wave at the time t.
2 is input from the timer 28 via the input/output port p2. In this way, the CPU 32 calculates the height h of the person to be measured from the time difference Δt between the wave transmission and reception times, stores the calculation result in the RAM 26, and displays the height via the display drive unit 32. The height h is displayed by driving the device 8.

In step n5, it is determined whether the obesity degree is displayed automatically or by the selection operation of the subject 14. If the obesity degree is displayed, the obesity degree is calculated in step n6. This obesity degree calculation is performed in the RAM26
Based on the data of weight w and height h stored in , the CPU 32 calculates which classification of obesity degree of the person to be measured 14 belongs to in the obesity degree storage unit 30, and the calculation result is While storing the obesity degree in the RAM 26,
The obesity level display 10 is driven via the display drive unit 32 to display a display thereon.

Although the height sensor 12 in the embodiment is an ultrasonic transducer, it is not limited to this.
For example, a height measuring rod is installed vertically on the footrest 4 along the back of the person to be measured, a photocoupler is installed on the height measuring rod, and the light for height measurement is emitted from the light emitting part of the photocoupler to the person to be measured. The light may be irradiated onto a light reflecting section at the upper end of the head, the light reflected there may be detected by a light receiving section, and the height of the subject may be measured from the detection. In addition, in the embodiment, the height sensor 12 was integrated with the weight scale, but instead of being integrated, it is a separate body connected to another height measuring device with a cord, and the height measurement data from the height measuring device is output to the weight scale. You may also do so.

[0020]

[Effect of the invention] As is clear from the above explanation,
In the present invention according to claim 1, in response to the input of the measured weight data and the height data, the CPU (22) calculates the subject ( 14) The obesity degree is calculated and the obesity degree which is the calculation result is displayed on the obesity degree display (10), so the person to be measured (10) can know the obesity degree as well as his own weight. .

In the present invention according to claim 2, the CPU (22) further calculates the height of the person to be measured (14) based on the detection output of the height sensor (12), and displays it on the height display (8). ), the measured person (14
) will be able to know their height as well as their weight and degree of obesity.

[Brief explanation of drawings]

FIG. 1 is a side view of a weight scale according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating measurement of height using the weight scale of FIG. 1;

FIG. 3 is a block diagram of the interior of the weight scale of FIG. 1;

FIG. 4 is a flowchart for explaining the operation.

[Explanation of symbols]

2　Weighing scale 4 Footrest 6 Weight indicator 8 Height indicator 10 Obesity indicator 12 Height sensor 14 Person to be measured 18 Reflector 22 CPU 30 Obesity level memory unit

Claims (2)

[Claims] Claim 1: An obesity degree storage unit (3) in which the degree of obesity of the human body is classified and stored based on the correlation between weight and height.
0), and a CPU (22) that calculates the degree of obesity of the person to be measured (14) from the obesity degree storage unit (30) in response to input of the measured weight data and height data of the person to be measured (14). , an obesity level indicator (10) disposed on the footrest (4) and displaying the obesity level calculated by the CPU (22);
A weight scale characterized by comprising: [Claim 2] A height sensor (12) and a height indicator (
8), the height sensor (12) measures the height of the person to be measured (14), and the CPU
(22) calculates the height of the person to be measured (14) based on the output of the height sensor (12), and the height indicator (8) is placed on the footrest (4). 2. The weight scale according to claim 1, further comprising: and displaying the calculation result.