CN109029672B - Intelligent body fat scale - Google Patents
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- CN109029672B CN109029672B CN201810762074.7A CN201810762074A CN109029672B CN 109029672 B CN109029672 B CN 109029672B CN 201810762074 A CN201810762074 A CN 201810762074A CN 109029672 B CN109029672 B CN 109029672B
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- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000037396 body weight Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 28
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
- G01G19/50—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons having additional measuring devices, e.g. for height
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- General Physics & Mathematics (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The invention discloses an intelligent body fat scale. The invention discloses an intelligent body fat scale, which comprises the following components: and the pressure sensor is used for measuring whether the voltage obtained according to the pressure of the left foot of the user on the intelligent body fat scale is consistent with the voltage obtained according to the pressure of the right foot of the user on the intelligent body fat scale, and adjusting the height of the position of the left foot or the right foot when the voltage obtained according to the pressure of the left foot of the user on the intelligent body fat scale is inconsistent with the voltage obtained according to the pressure of the right foot of the user on the intelligent body fat scale. The invention automatically adjusts the heights of the left side and the right side of the intelligent body fat scale so as to realize balance between the intelligent body fat scale and the terrain height, and ensures that a user stands on the body fat scale in a balanced manner to clearly see various detection data.
Description
Technical Field
The invention belongs to the technical field of body fat scales, and particularly relates to an intelligent body fat scale.
Background
Today, in the twentieth century, sub-health problems increasingly plague people, and more diseases occur in young people. If each person knows the data of the physical condition of the person in detail, the person can be urged to supplement the corresponding nutrition or strengthen the exercise in time.
The existing body fat scales capable of detecting the fat content of a human body can help a user to know the physical condition of the user, and further health management is carried out on the user.
Currently, intelligent body fat scales on the market can simply measure the body fat content of a human body. However, the body fat scale cannot be applied to any ground, which is a problem that all users feel deep pain points during the use process.
The use scene of the user may relate to various rugged ground surfaces, such as cement floors, wood floors, plastic floors, blanket floors, tile floors, clay roads and the like, and the human body stands on the scale surface and can shake when encountering slopes or rugged terrains, so that the body is unbalanced, and the stability and the accuracy of body fat scale detection data are affected.
The existing body fat scale detection device lacks flexibility and has single function. The main stream products which are released by various manufacturers at present mostly solve the problem of uneven ground by using plastic foot pads on the back surface of the shell of the body fat scale. The user of the plastic foot pad feels uncomfortable when using the plastic foot pad, the user can emit bad plastic odor when the temperature is slightly higher in summer, the user is too harsh, and the phenomenon of falling off caused by insufficient adhesiveness of the foot pad is easy to occur. In addition, partial plastic callus on sole meets moist topography surface, and the human body still has the risk hidden danger of skidding on the balance body. The other point is that the supporting height of the foot pad is cured by default along with the uneven terrain, the telescopic adjustment cannot be carried out, and the height cannot be flexibly adjusted to adapt to the uneven terrain. The traditional design method is not a good balance, the detection method is uniformly fixed, free adjustment and free selection cannot be carried out, the function use is limited to a certain extent, and the selection margin and the expansion space are lacked.
The prior implementation scheme similar to the invention is shown in fig. 1, and is a structural diagram of a detection device of the prior weighing scale.
The working principle of the existing weighing scale is mostly composed of a weighing sensor module, a filter amplifier module, an alarm circuit module, an AD converter, an LCD display module, a weighing scale main board and the like. The weight information of the human body is converted into an electric signal by the weighing sensor, the electric signal is filtered and amplified by the measuring circuit, and finally the electric signal is displayed by the display circuit, if the weight exceeds the set parameter range, the system can send out an alarm prompt.
As another example, a body fat scale disclosed in the patent publication CN 107961009a, the invention comprises: the balance body is used for detecting health information of a user, wherein the balance body is provided with a through hole; the hand electrode inductor is used for acquiring current passing through the hands of a user, and the outer contour of the hand electrode inductor is matched with the through hole.
The invention is applied to the reduction of the volume of the body fat scale, does not relate to any scheme for maintaining the balance of the body fat scale, and along with the development and progress of microelectronic technology, the conventional weighing tool used in the market in the related technology cannot meet the needs and the application of people, and when the body fat scale is not stably placed, especially some special groups have the fear that the detection parameters are not scientific and accurate, the detection indexes are not complete enough, and the needs cannot be well met.
Therefore, how to change the defect of the traditional weighing tool in use and eliminate the contraindications generated by users, so that the body fat scale can accurately measure data in any ground environment, and the problem to be solved by the invention is solved.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the intelligent body fat scale, which is used for further improving and optimizing and improving the existing body fat scale, changing the structure of the original pressure sensor and realizing the measurement of various functions and all-terrain of the body fat scale.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
an intelligent body fat scale, comprising:
and the pressure sensor is used for measuring whether the voltage obtained according to the pressure of the left foot of the user on the intelligent body fat scale is consistent with the voltage obtained according to the pressure of the right foot of the user on the intelligent body fat scale, and adjusting the height of the position of the left foot or the right foot when the voltage obtained according to the pressure of the left foot of the user on the intelligent body fat scale is inconsistent with the voltage obtained according to the pressure of the right foot of the user on the intelligent body fat scale.
Preferably, the pressure sensor includes:
an elastic body for deforming when receiving pressure;
the strain gauge is used for changing the resistance value when the strain gauge deforms along with the elastic body;
and the compensating piece adjusts the length according to the resistance value change.
Preferably, the pressure sensor further includes:
and the bridge is used for connecting the two parallel resistors.
As a preferred aspect of the present invention, the intelligent agent lipid scale further comprises: and the display module is used for controlling the semiconductor light-emitting diode to display the voltage value and displaying the physical data of the intelligent body fat scale measuring user.
As a preferred aspect of the present invention, the display module includes a plurality of semiconductor light emitting diodes, and the driving IC control chip controls the semiconductor light emitting diodes at corresponding positions to emit light to display corresponding data.
As a preferred aspect of the present invention, the body data includes: total body weight, bone, muscle, fat, moisture parameters.
As a preferred aspect of the present invention, the intelligent agent lipid scale further comprises: and the voice broadcasting module is used for broadcasting various body data and the pressure value.
As a preferred aspect of the present invention, the intelligent agent lipid scale further comprises: and the information sending module is used for sending the data measured by the intelligent body fat scale to the intelligent terminal.
As a preferred aspect of the present invention, the intelligent agent lipid scale further comprises: and the warning module is used for sending out a warning when the voltage values of the left foot and the right foot measured by the pressure sensor are large in difference.
As a preferred aspect of the present invention, the intelligent agent lipid scale further comprises: and the power supply module is used for outputting DC 6V voltage to the voltage stabilizing IC, and the voltage stabilizing IC supplies power for the intelligent body fat scale.
The technical scheme provided by the invention can comprise the following beneficial effects:
1. the invention relates to a pressure sensor, which has the action trend of cutting high and filling low, so that a body fat scale is placed on the ground surface to reach a balanced state.
2. The body fat scale can enable a user to stand on the body fat scale in a balanced manner to clearly see various detection data, so that the body of the user is more intuitively and clearly known and judged, and the detection method is exquisite, reliable and convenient, and better meets the use requirements of the user. All detection parameters (weight, fat, bones, human body moisture, muscles and topography surface flatness data) of a user are presented through the LED display screen, so that the purpose that the LED display screen is taken as a carrier and all measurement parameters of the user are transmitted and displayed is better achieved. The system has the advantages of quick response, no interference, stable working performance, better improvement of the quality of products, optimization and improvement of defects and drawbacks in the existing design.
3. The voice broadcasting control chip is connected with the loudspeaker, and the flatness state of the body fat scale on the surface of the terrain and all detection parameters are fed back to the user in a voice broadcasting mode. The voice broadcast device can prevent error data acquired by users with carelessness and poor eyesight, and can carry out voice broadcast in an automatic mode for the body fat scale without manual operation, thereby having the effects of convenient use, humanization and intellectualization.
4. According to the invention, the WIFI module is adopted to be connected with the intelligent terminal of the user, and all measured data are formed into the record of measured data transaction in the measurement period, so that the user can clearly see the trend of each data change, and the body of the user can be judged more intuitively and clearly. In addition, referring to WeChat, new APP is not required to be re-developed and downloaded, so that the use behavior and habit of the existing market users are well changed.
Drawings
FIG. 1 is a block diagram of a conventional weighing scale detection device in the background of the invention;
FIG. 2 is a diagram showing the structure of an intelligent body fat scale according to example 1 of the present invention;
FIG. 3 is a diagram showing the structure of an intelligent body fat scale according to example 2 of the present invention.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are intended to convey the scope of the invention to those skilled in the art.
Unless otherwise defined, terms (including technical and scientific terms) used herein should be understood to have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Moreover, it will be appreciated that the terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
This embodiment provides an intelligent body fat scale, as shown in fig. 2, comprising: the specific operation processes of the pressure sensor 100, the elastic body 110, the strain gauge 120, the compensation gauge 130 and the bridge 140 are as follows:
the intelligent body fat scale of this scheme has designed a pressure sensor 100, through the structure that designs pressure sensor, increases compensation piece 130, foil gage 120, elastomer 110, resistance and bridge structure 140 in pressure sensor, realizes multifunctionality and all-terrain measurement.
The pressure sensor 100 is used for measuring whether the voltage obtained according to the pressure of the left foot of the user on the intelligent body fat scale is consistent with the voltage obtained according to the pressure of the right foot of the user on the intelligent body fat scale, and when the voltage obtained according to the pressure of the left foot of the user on the intelligent body fat scale is inconsistent with the voltage obtained according to the pressure of the right foot of the user on the intelligent body fat scale, the height of the position where the left foot or the right foot is located is adjusted.
Preferably, the intelligent body fat scale comprises two pressure sensors which are respectively arranged at the standing positions of the left foot and the right foot of the human body, as shown in fig. 2.
The system chip MCU controls the working state of the drive IC control chip, and the drive IC control chip controls the working state of the 2 groups of pressure sensors.
When the 2 sets of pressure sensors are in a normal working state, the left foot and the right foot of the human body respectively step on the 2 sets of pressure sensors, the pressure sensors are changed due to the fact that the pressure sensors are loaded and stressed, the shape of the elastic body 110 of the pressure sensor 100 is changed, and then the length of the strain gauge 120 attached to the elastic body 110 is changed.
Preferably, the pressure sensor 100 has two air chambers, one connected to the object to be measured, one closed standard atmospheric pressure chamber, and a rugged diaphragm in the middle, supported by the elastic body, and the deformation of the elastic body 110 and the pressure of the elastic body 110 corresponding to the strain gauge 120 are directly affected by the weight of the human body, which is an inertia value.
The strain gauge 120 is used for changing the resistance value when the elastic body is deformed.
When the length of the strain gauge 120 is changed, the shape of the strain gauge is changed, and the strain gauge stretches to increase the length and decrease the cross-sectional area, thereby increasing the resistance. The strain gauge compresses, shortens in length, and increases in cross-sectional area, resulting in a smaller resistance value.
And a bridge 140 for bridging two parallel resistors.
The bridge 140 and the parallel resistor R are preferably configured such that the resistor is 500 ohms as shown in fig. 2.
The bridge 140 detects a change in the resistance of the strain gage 120. The change in the bridge resistance is due to the change in the resistance of the strain gauge 120, and thus the change in the resistance of the strain gauge can be detected by the bridge 140. The voltage output by the bridge changes along with the change of the resistance value, and the obtained voltage value is used for judging whether the pressure applied to the left foot position and the right foot position of the intelligent body is consistent or not.
The pressure sensor 100 is used for adjusting the height of the position of the left foot or the right foot when the voltage obtained by the pressure of the left foot and the right foot of the user on the intelligent body fat scale is inconsistent.
When the voltage values detected by the bridge 140 of the 2 groups of pressure sensors 100 are inconsistent, the height of the standing positions of the left foot and the right foot needs to be adjusted, and the length is adjusted by the compensation sheet 130 of the pressure sensor 100 to counteract the imbalance of the level of the intelligent body fat scale.
The pressure sensor 100 comprises a compensation sheet 130, the length expansion and contraction amount of the compensation sheet 130 is automatically adjusted to balance with the height of the terrain, the intelligent body fat scale is placed on the ground to be in a balanced state, and the pressure sensor is used for adjusting the heights of different terrains through the change.
The compensation sheet 130 is matched with sensitive gate materials and structural parameters, such as uneven surface of the terrain, and the compensation sheet 130 can adjust flatness by stretching and retracting, so that the effect of terrain balance can be achieved.
In summary, according to the intelligent body fat scale provided by the embodiment, a user can stand on the body fat scale in a balanced manner to clearly see all detection data, so that the body of the user is more intuitively and clearly known and judged, and the detection method is exquisite, reliable and convenient, and well meets the use requirements of the user. The intelligent body fat scale has the advantages of low design cost, convenient and simple operation, easy learning and easy use, and has good economic benefit and popularity, and other factors influencing the normal operation of the body fat scale system are not introduced in the detection process.
Example 2
The present embodiment provides an intelligent body fat scale, which includes the pressure sensor 100, the elastic body 110, the strain gauge 120, the compensation sheet 130, and the bridge 140 of embodiment 1, and the difference between this embodiment and embodiment 1 is that this embodiment further includes: the specific operation procedures of the display module 200, the voice broadcast module 300, the information sending module 400, the warning module 500 and the power module 600 in this embodiment are as follows, as shown in fig. 3:
the display module 200 is used for controlling the semiconductor light emitting diode to display the voltage value and displaying the physical data of the intelligent body fat scale measuring user.
The display module 200 includes a dot matrix display screen composed of a plurality of LEDs (Light Emitting Diode, semiconductor light emitting diodes), and the LED display screen is a display mode of controlling the semiconductor light emitting diodes, and can be used for displaying information such as data, characters, images, video signals, and the like. In this set of detection device, it is mainly used to show all measured data of intelligent body fat balance.
The LED display screen controlled by the display module 200 displays all index parameters (such as topographic surface flatness, weight, fat, bones, human body moisture and muscles) on the LED display screen, so that the detection parameters are accurately and quickly displayed for a user, and the display module is convenient and quick.
Among the index parameters displayed, the ground flatness is represented by the measured voltage values, and the display module 200 simultaneously displays the voltage values of the left foot position and the right foot position and displays whether the ground is flat or not. When the left foot voltage value and the right foot voltage value are equal, the ground is flat. Displaying this information facilitates alerting the user to the safety of the foot.
The body data includes: total body weight, bone, muscle, fat, moisture parameters.
The body fat scale of the invention can simultaneously measure the data of the total weight, fat, bones, water content, muscles and the like of the human body, and the scheme for measuring the total weight, fat, bones, water content and muscles of the human body is a mature prior art and is not described again here.
The display module 200 includes a plurality of semiconductor light emitting diodes, and controls the semiconductor light emitting diodes at corresponding positions to emit light through the driving IC control chip to display corresponding data.
The driving IC control chip is used for controlling the on or off of the LEDs of the corresponding part so as to enable the LEDs to form corresponding numbers to be displayed on the display screen.
The driving IC control chip provides normal working application programs and configuration parameters for the display module 200, and an interface of the display module 200 is connected with the LED display screen through an LED Cable.
Preferably, the light displays the related information through a transparent device with an inherent opening, the opening corresponds to each LED one by one, as shown in fig. 3, a plurality of LEDs are arranged on the main board, and the LEDs at different positions are controlled to emit light to form the related digital information to be displayed.
The existing intelligent body fat scale on the market mostly only displays the measurement parameter of the weight on a display screen, but does not display other measurement parameters such as skeleton, muscle, fat and the like. In this embodiment, the technical functions of the display module 200 are cited, the measurement data acquired in various sensors are sent to the display module through the driving chip, and the display module displays all the measured data on the LED display screen controlled by the display module, so that the design is relatively close to the use scene and habit of the user.
The voice broadcasting module 300 is configured to broadcast each item of body data and the pressure value.
The control chip of voice broadcast module 300 connects the speaker, and the system chip MCU of agent's fat balance passes through power cord, data line and control bus guide voice broadcast module 300's control chip, and through pre-amplifier circuit, voice chip, output amplifier circuit with the speech signal transmission for the speaker, ensures that the voice broadcast of speaker can normally work to realized voice broadcast's function.
Preferably, the workflow of the voice broadcast module 300 is: the voice signal is converted into a digital signal through sampling, the digital signal is stored in a ROM of the drive IC control chip, and the digital signal in the ROM is restored into the voice signal through a circuit. The voice broadcast chip is designed with a group of PWM output ports, can directly push 0.5W horn, and has clear tone quality. The LVR reset circuit is built in, and an external reset circuit is not needed. An accurate internal resistance frequency vibrator is built in, and an external resistor is not needed.
The voice broadcasting module 300 with stable performance can normally work in extremely severe noise environment without any peripheral circuit, has wide temperature and pressure resistant range, has a normal working range as wide as 2.6V to 5.0V, and also overcomes the defect of poor anti-interference capability of the voice chip on the market at present.
The voice broadcasting module 300 broadcasts index parameters (data such as total weight, fat, bones, human body moisture, muscles, scale body temperature and the like) detected by a user in a voice mode, if abnormal detection caused by standing imbalance is encountered, the system can also prompt through voice, so that the accuracy and the precision of detection are ensured, and the voice broadcasting module is a more humanized side for developing and designing the set of detection jig, and has great significance and application.
The intelligent body fat scale further comprises: and the information sending module 400 is used for sending the data measured by the intelligent body fat scale to the intelligent terminal.
Preferably, the message sending module 400 sends the information by WIFI or the like.
The message sending module 400 is in wireless communication connection with an intelligent terminal (such as a mobile phone), a WeChat program installed in the mobile phone is used as a carrier to realize data transmission, and all detection data (data of total weight, fat, bones, human body moisture, muscles and the like) are transmitted into the mobile phone of a user in a WeChat pushing mode. The mobile phone forms the record of the measured data transaction in the measuring period with all the measured data, so that the user can clearly see the trend of the change of each item of data, and the body of the user can be judged more intuitively and clearly.
The method for transmitting information through the WIFI is simple and rapid, good in stability, long in transmission distance, wide in coverage range and strong in anti-interference capability, and therefore the WIFI is adopted to connect with communication equipment (mobile phone). In addition, referring to WeChat, new APP is not required to be re-developed and downloaded, so that the use behavior and habit of the existing market users are well changed.
The warning module 500 is configured to send a warning when the voltage values of the left foot and the right foot measured by the pressure sensor are different greatly.
When the difference of the voltage values of the left foot and the right foot for the intelligent body fat scale is large, the uneven ground or uneven standing of the user is indicated, and the system gives an alarm to the user through the alarm module 500.
Preferably, if the index parameter is seriously beyond the standard range, the warning module 500 can play a role in warning.
The intelligent body fat scale further comprises: the power module 600 is configured to output a DC 6V voltage to the voltage stabilizing IC, and the voltage stabilizing IC supplies power to the intelligent agent.
Preferably, in this embodiment, the power supply is provided to the intelligent agent lipid scale by using 4 batteries No. 7.
The No. 7 battery of 4 sections outputs DC 6V voltage to the voltage stabilizing IC, and the voltage stabilizing IC provides power for the intelligent body fat scale system chip MCU, so that the system chip MCU can work normally and stably.
To sum up, the intelligent body fat scale that this embodiment provided, this embodiment carries out voice broadcast through design and rectifying voice broadcast module with all data of measurement, can reach a voice prompt's effect like this, and the data that prevent that some carelessness and bad user of eyesight obtained have the mistake, and is that body fat scale carries out voice broadcast with automatic mode, need not manual operation, has convenient to use, humanized, intelligent effect.
According to the embodiment, the scheme that the LEDs are in one-to-one correspondence with the openings is designed, the detection data of all body fat scales are displayed on the LED display screen, and the defect that the existing body fat scales only display the weight is overcome. In view of the existing detection method, only the weight parameters are displayed, and the parameters such as fat, muscle, bone, moisture and the like are not displayed through the LED display screen. By adopting the testing method of the device, all detection data can be displayed on the display screen one by one. The detection device and the detection method have the advantages of high detection efficiency, wide detection coverage, and more scientific and more accurate feedback of the safety characteristics of the test data.
The intelligent body fat provided by the embodiment is simple in functional operation, popular and easy to understand, and can provide a better health care function for users.
Other embodiments of the disclosed invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosed invention. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (9)
1. An intelligent body fat scale, which is characterized by comprising: the pressure sensor is used for measuring whether the voltage obtained according to the pressure of the left foot of the user on the intelligent body fat scale is consistent with the voltage obtained according to the pressure of the right foot of the user on the intelligent body fat scale, and when the voltage is inconsistent with the voltage, the height of the position where the left foot or the right foot is located is adjusted;
the two pressure sensors are respectively arranged at the standing positions of the left foot and the right foot of the human body;
the pressure sensor includes: an elastic body for deforming when receiving pressure; the strain gauge is used for changing the resistance value when the strain gauge deforms along with the elastic body; the compensation sheet adjusts the length according to the resistance value change;
when the voltages detected by the two pressure sensors are inconsistent, the length of the compensating piece of the pressure sensor is adjusted to offset the unbalance of the height of the intelligent scale so as to adjust the height of the position of the left foot or the right foot.
2. The body fat scale according to claim 1, wherein the pressure sensor further comprises: and the bridge is used for connecting the two parallel resistors.
3. The body fat scale of claim 1, wherein the body fat scale further comprises: and the display module is used for controlling the semiconductor light-emitting diode to display the voltage detected by the pressure sensor and display the physical data of the intelligent body fat scale measuring user.
4. The intelligent body fat scale according to claim 3, wherein the display module comprises a plurality of semiconductor light emitting diodes, and the driving IC control chip controls the semiconductor light emitting diodes at corresponding positions to emit light to display corresponding data.
5. The body fat scale of claim 3, wherein the body data comprises: total body weight, bone, muscle, fat, moisture parameters.
6. The body fat scale of claim 1, wherein the body fat scale further comprises: and the voice broadcasting module is used for broadcasting various body data.
7. The body fat scale of claim 1, wherein the body fat scale further comprises: and the information sending module is used for sending the data measured by the intelligent body fat scale to the intelligent terminal.
8. The body fat scale of claim 1, wherein the body fat scale further comprises: and the warning module is used for sending out a warning when the voltage values of the left foot and the right foot measured by the pressure sensor are large in difference.
9. The body fat scale of claim 1, wherein the body fat scale further comprises: and the power supply module is used for outputting DC 6V voltage to the voltage stabilizing IC, and the voltage stabilizing IC supplies power for the intelligent body fat scale.
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| CN201810762074.7A CN109029672B (en) | 2018-07-12 | 2018-07-12 | Intelligent body fat scale |
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| CN201810762074.7A CN109029672B (en) | 2018-07-12 | 2018-07-12 | Intelligent body fat scale |
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| CN109029672A (en) | 2018-12-18 |
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