KR20050095195A - Digital body fat scale - Google Patents

Abstract

The present invention relates to a digital weight scale that measures the weight of a person and displays a numerical value on a display so that the weight of the measurer can be known. The digital weight scale includes a first load cell and a second load cell, and includes a left weight display part, a right weight display part, and a whole. A display unit having a total weight display unit for displaying the weight, the control unit for controlling the display unit to calculate the total weight by adding the left and right weight, and the weight is displayed separately in the left weight display unit, the right weight display unit and the total weight display unit, respectively It has a configuration that includes, allows to measure the left and right body weight of the measurer so that the measurer can determine how much his weight is biased to one side, and if the weight change trend by day or month Depending on the year It said, it is helpful to long-term weight management.

Description

Digital body fat scale {Digital body fat scale}

The present invention relates to a weight scale, and more particularly, to a digital scale that measures the weight of a person and displays the numerical value on a display so that the weight of the measurer can be known.

Normally, the load on the left and right in a normal person with a straight posture is almost similar. However, in the case of long-term postural instability or a lot of chair life, the difference in the load on each foot occurs when the spine is curved or the shoulder is biased to one side.

The scale is classified into an analog scale and a digital scale, and the present invention relates to a digital scale.

In general, the digital scale includes a case, a load cell, a scaffold, a display, a controller, and a power supply. Of course, an amplifier for amplifying a signal according to the compression deformation of the load cell, an A / D converter for converting an analog signal to a digital signal is further provided.

The conventional digital scale having the above configuration is to display only the weight of the measurer on the display, and has only the function of measuring the current weight. With such a conventional digital scale, it is difficult to expect effective help for weight management or health care.

In addition, the conventional digital scale has a disadvantage that it is difficult to determine whether the measured weight is accurate.

  The purpose of the present invention is to measure the difference in the load on the left and right as well as the measurement of the total weight in the existing weight scale, early detection of posture imbalance due to the difference in the measured value of the left and right to measure the posture correction exercise, yoga In other words, it can help to take appropriate measures such as medical examination.

Another object of the present invention is to provide a digital scale that provides assistance to the individual weight management.

Still another object of the present invention is to provide a digital scale that allows to determine the body balance of the weight measurer.

Still another object of the present invention is to provide a digital scale that enables the weight management to be divided according to the user, and in some cases, the unspecified majority can measure their weight.

Still another object of the present invention is to provide a weight scale capable of checking accuracy.

The digital scale according to the present invention has a load cell for measuring the load applied and installed on the case and the case, a display for displaying the scaffold mounted on the load cell and the measured weight, and a display of the weight measured in the load cell. A digital scale that has a control unit for displaying on the display and controls the operation of the necessary components and a power supply unit for supplying power to the required portion, wherein the load cell is installed on one side of the case and measures the weight carried on the left foot of the measurer And a first load cell to be installed on the other side of the case and a second load cell for measuring a weight carried on the right foot of the measurer. The scaffold is mounted on the first load cell to raise the left foot of the measurer. Mounted on the first scaffold and the second load cell to enable And a second scaffold for raising the right foot of the measurer, wherein the display unit displays a left weight display unit for displaying the weight measured in the first load cell and a weight measured in the second load cell A right weight display unit, a total weight display unit for displaying the total weight of the measurer by adding the left weight of the measurer measured in the first load cell and the right weight of the measurer measured in the second load cell; The controller calculates the total weight of the measurer by adding the outside weight of the measurer measured in the first load cell and the right weight of the measurer measured in the second load cell, and calculates the measured left and right weights and the total weight. The left weight display and the right weight display and the whole Such that the display of the display portion are separated, each has a configuration to control the display unit.

The display unit further includes a left weight percentage display unit for indicating the percentage of the left weight to the total weight and a right weight percentage display unit for indicating the percentage of the right body weight to the total weight, and the controller calculates the percentages. Performing a calculation for and controlling the display unit such that the calculated percentages are displayed on the left weight percentage display unit and the right weight percentage display unit.

The display unit may further include a message display unit for outputting different messages according to the degree of the difference between the percentage of the left weight and the percentage of the right weight, wherein the controller calculates the percentage difference and calculates the percentage difference. And comparing the percentage difference value with the reference value, and thereby controlling the display unit to display a predetermined message on the message display unit according to whether the calculated percentage difference value exceeds the reference value.

A key input unit for distinguishing and inputting IDs according to the weight measurer, and a data storage unit for dividing the weight measurement data according to the weight measurer and storing the data by date, date and / or time, and the display unit may be input. The apparatus further includes a graph display unit for displaying a weight change or weight bias according to the measurement date, date, and / or time of the weight measurer corresponding to the received ID, wherein the controller corresponds to the ID stored and inputted in the data storage unit. Controlling the display unit to display the weight measurement data in a graph on the graph display unit according to the measurement date and / or hourly weight measurement data of the weight measurer,

Depending on whether the ID is input, it is preferable that the operation is divided into a mode for the unspecified number of users and a mode for the weight measurer of a specific ID.

The control unit may be configured to calculate a weight change rate according to the date of the weight measurer of the input ID, and to control the display unit so that different messages are displayed on the message display unit according to the calculated weight change rate.

The control unit inputs the current date and weight data as the data of the specific ID when a specific ID is input, and when the measured left and right weights are all equal to or greater than "0" and the weight change width per unit time is within the reference value. It is good to have a structure to store in a data storage.

It is preferable that a level indicating the level of the digital scale is further provided on the outer surface of the scale.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a perspective view showing an example of a digital scale according to the present invention, Figure 2 is a block diagram showing the configuration of the digital scale of FIG.

As shown in FIG. 1, the digital scale 100 according to the present invention includes a case 110 that allows necessary parts to be installed therein, and the first footrest 112 and the first foot 112 on the case 110. The second scaffold 114 is arranged left and right. The display unit 120 and the key input unit 130 are disposed at the front center of the digital scale 100, and the horizontal scale 140 is installed on the second footrest 114. Here, the first footrest 112 and the second footrest 114 allow the measurer to separate the left foot and the right foot, respectively, so that the weight placed on the left foot of the measurer and the weight placed on the right foot can be measured. The display unit 120 is for displaying a necessary matter such as a weight measurement value, and the key input unit 130 is for inputting an ID (ID) or password for user identification or selecting a required function. . The necessary functions are, for example, a function of displaying a graph of weight change by date of a logged-in user in the last month and a graph of weight change of the past year by a month basis based on a monthly average value. The display unit 120 will be described in more detail later. Level 140 is to increase the measurement accuracy of the left and right body weight, so as to accurately balance the left and right balance of the weight scale 100 when measuring the weight.

Looking at the configuration of the digital weight scale 100 according to the present invention as described above in more detail with reference to FIG.

As shown in FIG. 2, the digital scale 100 according to the present invention includes a first load cell 152 for measuring the weight on the left foot of the measurer and a second load cell 154 for measuring the weight on the right foot of the measurer. ). The first load cell 152 and the second load cell 153 are not necessarily composed of only one load cell, but each may be composed of two or more. The first scaffold 112 is mounted on the first load cell 152 to allow the left foot of the measurer to be placed thereon, and the second scaffold 114 allows the measurer's right foot to be placed on the second load cell 154. ) Is mounted.

The first load cell 152 and the second load cell 154 are connected to the control unit 162 through the first and second amplifiers 156 and 158 and the A / D converter 160. The first and second amplifiers 156 and 158 are for amplifying the signals generated by the first and second load cells 152 and 154, and the A / D converter 160 converts the amplified analog signals into digital signals. Is to convert.

The control unit 162 controls the operation of each component, and the functions performed by the control unit 162 will be described in more detail later. The control unit 162 includes a timer 164 for providing time and date information, a ROM 166 on which a basic program is mounted, a RAM 168 serving as a main memory, and a data storage unit for storing necessary data. 170, a key input unit 130 is connected to enable input of an ID or password, and to select a required function.

Here, the ROM 166 stores a basic program to be executed by the controller 162 of the digital scale 100, and the RAM 168 serves as a main memory device. The role of the ROM 166 and the RAM 168 may be performed by the memory devices installed in the controller 162, and may be necessary because the data storage unit 170 may perform in some cases. It is not.

The display unit 120 is for displaying necessary characters or graphs on a screen such as an LED according to a control signal and a data signal applied from the controller 162, which will be described later in more detail.

In addition, the power source 180 is basically a component to be provided, and the battery may be used. In some cases, household electricity may be used alone or in combination with the battery. The horizontal system 140 has already been described above.

3 is a diagram illustrating an example of a display unit in a digital scale according to the present invention, and FIG. 4 is a diagram illustrating a display example of the display unit of FIG. 3.

 3 and 4, the digital scale 100 according to the present invention includes a left weight display unit 121, a right weight display unit 123, and a total weight display unit 125. In addition, the lower left weight display unit 121 is further provided with a left weight percentage display unit 122 indicating the left weight percentage to the total weight, the lower right weight display unit 123, the lower right weight percentage to indicate the percentage of the right body weight The display unit 124 is further provided. They can, for example, help the weight measurer to see at a glance that their total weight is 50Kg, their left weight is 23Kg, which is 46% of the total weight and the right weight is 27Kg, which is 54% of the total weight. .

The display unit 120 according to the present invention further includes a message display unit 126. The message display unit 126 is for displaying the necessary message according to the result of the contrast of the left and right body weight to be measured, “the right is heavy 8%. Talk to your doctor ”. Depending on the degree of left and right weight differences, such messages may indicate, for example, that the difference is within 1% of normal, 1-3% for posture correction, and 3-5% for warning. If they are above 5%, they may prompt you to consult a doctor.

The display unit 120 according to the present invention further includes a graph display unit 128. The graph display unit 128 may display a graph of weight change by date in the last month or monthly weight change in accordance with a monthly average for one year in a state where a specific user inputs an ID, or in some cases May display the change in the weight of the left foot and the weight of the right foot by date or month. In order to display such a graph, the measured weight data should be stored for each measurement date, date, and / or time.

In the graph displayed on the graph display unit 128, it is preferable to obtain the average value of the highest and lowest values among the periods to be displayed on the graph, and to make the average value become the reference value of the upper and lower centers. This is where it can be.

5A and 5B are flowcharts showing the operation of the digital scale according to the present invention.

First, it is checked whether there is an ID input (step 1). If there is an ID input, it operates in a specific user mode. If there is no ID input, it operates in a mode for an unspecified number of users.

If there is an ID input, the user inputs past data of the ID user and displays the graph on the graph display unit 128 (step 2). The graph may be displayed in a predetermined basic form such as weight change by date in the last month, but may be changed to be displayed in a different form by selecting a function button in the key input unit 130 or the like.

Then, the left body weight of the first load cell 152 and the right body weight of the second load cell 154 are measured to be displayed on the left body weight display unit 121 and the right body weight display unit 123, respectively (step 3, step). 4).

The weights measured by the first load cell 152 and the second load cell 154 are summed and displayed on the total weight display unit 125 (step 5).

Then, the current date, date, time, and measured weight data are stored in the data storage unit 170 and reflected in the graph displayed on the graph display unit 125 (step 6).

Based on the data in steps 3 to 6, the percentages of the left and right weights are calculated and displayed on the left weight percentage display 122 and the right weight percentage display 124, respectively (step 7).

The weight bias ratio of the left and right body weights (percentage of the total weight, 8% in FIG. 4) is calculated (step 8), and it is determined whether the calculated bias ratio exceeds the first reference value (step 9). Here, the first reference value is, for example, 1% of the total weight, and the like, for example, a reference value within a normal range.

If the weight bias ratio exceeds the first reference value, it is determined whether the second reference value is exceeded as well (step 10). The second reference value herein refers to a value that is the standard of the highest value of the posture correction value, for example, with a little effort, such as 3% of the total weight.

If the weight bias ratio exceeds the second reference value, a first message such as a warning message is displayed on the message display unit 126 (step 11). Of course, in some cases, it may be further determined whether the third reference value, the fourth reference value, or the like is exceeded so that the corresponding message may be displayed on the message display unit 126.

When the weight bias ratio does not exceed the second reference value, a second message such as a posture correction method is displayed on the message display unit 126 (step 12).

On the other hand, when the weight loss ratio does not exceed the first reference value, a third message such as normal is displayed on the message display unit 126 (step 13).

In addition, the weight change rate according to the month or date is calculated (step 14), and it is determined whether the calculated weight change rate is outside the reference value (step 15). Here, the reference value is, for example, 5% of the initial weight is the baseline if the weight change rate within one month is more than 5% of the initial weight.

If the weight change rate is outside the standard value, the fourth message such as “weight change rate: abnormal” is displayed on the message display unit 126 (step 16). If the weight change rate is not within the standard value, the fifth message such as “weight change rate: normal” is displayed. Displayed on the message display unit 126 (step 17).

On the other hand, if there is no ID input is operated in a mode for an unspecified number, which is composed of steps 23 to 25, steps 27 to 33, as shown in Figure 5b, which is the steps 3 to 5, step 7 described above Same as in step -13.

6 is a flowchart illustrating a process of storing measured data in a data storage unit.

Data storage takes place automatically after several conditions are met. Some conditions are that, firstly, the data to be stored must be the data of a specific user who has entered the ID process. This means that step 1 shown in FIG. 5A is satisfied.

After the step 1 is satisfied, it is checked whether the weight of the first load cell 152 and the second load cell 154, that is, both the left weight and the right weight are both greater than or equal to “0” (step 61). Then check if the weight variation is within the threshold. Here, the reference value refers to a weight measured using a digital scale, which is measured within a certain range due to the breathing or heartbeat of the user, rather than being fixed to the correct value even after a certain time has passed since the climber climbed the scale. The body weight fluctuates, and this range is measured per unit time (step 62). This may vary slightly depending on the precision of the scale, the characteristics of the measurer or the weight of the measurer, but is a value that can be obtained through repeated experiments when the scale is manufactured. Consideration may be given to changing the program baseline.

That is, when all the conditions as mentioned above are satisfied, the date and time of the measurement and the measured weight data are stored in the data storage unit 170 as data of the corresponding ID user (step 63).

Of course, in some cases, a few seconds after the condition of step 61 is satisfied, the date and time of the measurement and the measured weight data may be stored as data of the corresponding ID user.

In addition, in the case of the same ID, once the data is stored, it is necessary to set a time limit so that new data can be stored after a certain time has elapsed from the storage time.

As can be seen from the above description, the digital scale according to the present invention enables the measurement of the left and right weights of the measurer separately, and allows the measurer to check how much his weight is biased to one side.

In the case of using the digital scale according to the present invention, it is possible to check the weight change trend of the weight measurer by date or month and in some cases by year, and also helps for long-term weight management.

In addition, the digital scale according to the present invention allows the weight management to be divided according to the user while allowing the unspecified number of people to measure their own weight in some cases, and the total weight of only the first load cell or the second load cell Because it can measure, it is possible to measure the whole weight in all three ways, so it is possible to check the accuracy of the scale. That is, the accuracy of the scale is checked by comparing whether the total weight measured in the first load cell and the total weight measured in the second load cell are equal to each other and the same as the total weight measured using both the first load cell and the second load cell. Can be.

1 is a perspective view showing an example of a digital scale according to the present invention,

2 is a block diagram showing the configuration of the digital scale of FIG.

3 is a view showing an example of a display unit in a digital scale according to the present invention,

4 is a diagram illustrating a display example of the display unit of FIG. 3;

5a and 5b is a flow chart showing the operation of the digital scale according to the invention,

6 is a flowchart illustrating a process of storing measured data in a data storage unit.

Explanation of symbols on the main parts of the drawings

100: digital scale 110: case

120: display unit 121: left weight display unit

122: left weight percentage display unit 123: right weight display unit

124: right weight percentage display unit 125: total weight display unit

126: message display unit 128: graph display unit

130: key input unit 140: level

152: first load cell 154: second load cell

162 control unit 170 data storage unit

Claims (7)

A load cell for measuring the load installed and applied to the case and the case, a display for displaying the scaffold mounted on the load cell, the measured weight and the weight measured in the load cell, and displaying on the display In the digital scale having a control unit for controlling the operation of the component and a power supply unit for supplying power to the required portion, The load cell is configured to include a first load cell installed on one side of the case and measuring the weight carried on the left foot of the measurer and a second load cell installed on the other side of the case and measuring the weight carried on the right foot of the measurer. , The scaffold is mounted on the first load cell and has a first scaffold for mounting the left foot of the measurer and a second scaffold for mounting the right foot of the measurer mounted on the second load cell. Configured by The display unit may include a left weight display unit for displaying a weight measured in the first load cell, a right weight display unit for displaying a weight measured in the second load cell, a left weight of the measurer measured in the first load cell and the first weight; It consists of a total weight display unit for displaying the total weight of the measurer sum the right weight of the measurer measured in 2 load cells, The controller calculates the total weight of the measurer by adding the outer weight of the measurer measured in the first load cell and the right weight of the measurer measured in the second load cell, and calculates the measured left and right weights and the total weight. And a digital scale that controls the display unit so that weight is displayed separately from the left weight display unit, the right weight display unit, and the entire weight display unit. The display apparatus of claim 1, wherein the display unit further comprises a left weight percentage display unit for indicating a percentage of the left body weight to the total weight and a right weight percentage display unit for indicating a percentage of the right body weight to the total weight. The controller performs an operation for calculating the percentages and controls the display unit such that the calculated percentages are displayed on the left weight percentage display unit and the right weight percentage display unit. The display apparatus of claim 1, wherein the display unit further comprises a message display unit configured to output a different message according to a degree of a difference between the percentage of the left weight and the percentage of the right weight. Calculate a value and compare the calculated percentage difference value with a reference value, and as a result, control the display unit to display a predetermined message on the message display part according to whether the calculated percentage difference value exceeds the reference value. Digital scale. The method according to any one of claims 1 to 3, wherein the key input unit enables the user to input IDs according to the weight measurers, and the weight measurement data according to the weight measurers. The apparatus may further include a data storage unit for storing the display unit. The display unit may further include a graph display unit for displaying a graph of weight change or weight bias according to a measurement date and / or time of a weight measurer corresponding to an input ID. The control unit controls the display unit to display the weight measurement data in a graph on the graph display unit according to the measurement date and / or hourly weight measurement data of the weight measurer corresponding to the ID stored in the data storage unit, Digital scales, characterized in that divided into a mode for the unspecified number of users and a mode for the weight measurer of a specific ID depending on whether the ID is input. The method of claim 4, wherein the controller calculates a weight change rate according to a date of a weight measurer of the input ID, and controls the display unit to display different messages according to the calculated weight change rate. Digital scale. The apparatus of claim 4, wherein the controller inputs a current date and weight data when a specific ID is input, and when the measured left weight and the right weight are both equal to or greater than “0” and the weight change width per unit time is within the reference value. Digital scale, characterized in that stored in the data storage to the data of the specific ID. The digital scale according to any one of claims 1 to 3, wherein a horizontal scale indicating the horizontal level of the digital scale is further provided on an outer surface of the scale.