TW201943386A - Wearable weight detection system - Google Patents

Abstract

A wearable weight detection system includes a first wearable device, a second wearable device, and a processor, wherein the first wearable device and the second wearable device directly contact a user's skin. The first wearable device emits a minute current through the user's body and is received by the second device. The second wearable device calculates the impedance value of the user based on the received minute current and transmits the impedance value to the processor. The processor calculates the body composition ratio value of the user based on the impedance value and calculates the weight changes of the user in comparison with an initial body composition ratio value. Compared with the prior art, the present invention uses the change of the user's body composition ratio to calculate the weight changes, and can estimate the user's current body weight and body composition without the weight scale.

Description

   Wearable weight detection system   

The present invention relates to a weight detection system, and in particular, to a weight detection system that estimates the amount of change in body weight using the body composition ratio.

In today's society, a bathroom scale is a necessary home detection instrument for almost every family. The weight value and the change in weight can be said to be the most basic values for judging human health. BMI, waist size and other health indicators are closely related to weight. Indivisible relationship. In recent years, the body fat meter has developed vigorously. The body fat meter can not only measure body weight, but also calculate the body composition ratio and the amount of fat in various parts through the impedance value of the body through the micro-current, so that users can know their health more accurately. situation.

However, measuring weight and body fat is important, but in a busy society, many people do n’t even have time to stand on a scale, let alone record changes in weight. Body scales and body fat scales are usually bulky and heavy, so they are not easy to carry. When people want to measure weight outside, they usually do not have a scale on hand, or each of the weight scales has a slight amount of weight. The error, coupled with the change in the weight of the clothes, makes the weight value measured outside very inaccurate and inconvenient.

In view of this, the present invention provides a wearable weight detection system, which includes a first wearable device that is worn on a user and directly contacts the skin of the user, and includes a first electrode for the first electrode. A micro-current is transmitted through the skin of the user to the user's body; a second wearable device is worn on the user and directly contacts the user's skin, the second wearable The device is wirelessly connected to the first wearable device and includes a second electrode, the second electrode receives the minute current through the skin of the user, and the second wearable device calculates that the minute current passes through the user An impedance value; and a processor coupled to the second wearable device to receive the impedance value, the processor pre-stores an initial body composition ratio value of the user, and calculates the user's A body composition ratio value, and comparing the initial body composition ratio value and the body composition ratio value to calculate a change in body weight of the user .

In a specific embodiment, the wearable weight detection system of the present invention further includes an ultrasonic device for transmitting an ultrasonic wave to detect a bone density value of the user. The processor is based on the impedance value and the bone density. The value calculates the body composition ratio value. The ultrasonic device is disposed on the first wearable device or the second wearable device.

In a specific embodiment, the processor includes a storage unit, the storage unit pre-stores an initial weight value and the initial body composition ratio value, and the processor calculates one of the users based on the initial weight value and the weight change amount. The current weight value and an estimated future weight value.

In a specific embodiment, the processor is connected to an input device, and the input device provides input of personal data, wherein the personal data includes at least one gender, age, height, or weight data, and the processor is based on the personal data and The impedance value calculates the body composition ratio value of the user.

In a specific embodiment, the initial body composition ratio and the body composition ratio are muscle, fat and bone volume ratios.

In a specific embodiment, the processor is disposed on the first wearable device, the second wearable device, a mobile device, or a cloud.

Another aspect of the present invention is to provide a method for calculating a weight change amount, which includes the following steps: S1: measuring an initial weight value of a user and calculating an initial body composition ratio value of the user; S2: passing a first After a time, calculate a small current through an impedance value of the user's body, and calculate a body composition ratio value of the user based on the impedance value; S3: calculate based on the initial body composition ratio value and the body composition ratio value A weight change of one of the users; and S4: calculating a current weight value of the user and an estimated future weight value using the initial weight value and the weight change.

In a specific embodiment, step S1 further includes the following sub-steps: S11: Enter personal data of one of the users; S12: Measure the initial weight of the user; S13: Calculate the minute current passing through the user's body An initial impedance value; S14: measuring a bone density value of the user; and S15: calculating the initial body of the user based on the personal data, the initial weight value, the initial impedance value, and the bone density value Composition ratio value.

The invention provides a wearable weight detection system and a method for calculating a weight change amount. A user only needs to measure the weight value on the station at the first measurement, and then use the change amount of the body composition ratio to calculate the user's weight. The amount of change. Compared with the conventional technology, the present invention can use the traditional weight scale in combination with the wearable weight detection system of the present invention to achieve the effect of the body fat meter, and avoid the waste caused by eliminating the traditional weight scale. On the other hand, the wearable weight detection system of the present invention can measure the user's weight change and body composition ratio anytime, anywhere, and estimate the future weight, which is more convenient for users to perform health management.

10, 10 (A), 10 (B) ‧‧‧ First wearable device

12‧‧‧first electrode

20, 20 (A), 20 (B) ‧‧‧Second wearable device

22‧‧‧Second electrode

30‧‧‧ processor

32‧‧‧Storage unit

40‧‧‧ Ultrasonic device

50‧‧‧ input device

A‧‧‧ Tiny current

Z‧‧‧Impedance

S1‧‧‧step

S11‧‧‧step

S12‧‧‧step

S13‧‧‧step

S14‧‧‧step

S15‧‧‧step

S2‧‧‧step

S3‧‧‧step

S4‧‧‧step

S5‧‧‧step

FIG. 1 is a signal transmission diagram of a specific embodiment of a wearable weight detection system of the present invention.

FIG. 2 is a schematic diagram of wearing a wearable device according to a specific embodiment of the present invention.

FIG. 3 is a functional block diagram of another embodiment of the wearable weight detection system of the present invention.

FIG. 4 is a flowchart of steps of a method for calculating a change in body weight according to the present invention.

FIG. 5 is a flowchart of the sub-steps of step S1 of the method for calculating a change in body weight according to the present invention.

FIG. 6 is a flowchart of steps in a specific embodiment of a method for calculating a change in body weight according to the present invention.

In order to make the advantages, spirits and features of the present invention easier and clearer, it will be detailed and discussed in the following with specific embodiments and with reference to the accompanying drawings. It is worth noting that these specific embodiments are only representative specific embodiments of the present invention, and the specific methods, devices, conditions, materials, etc. exemplified therein are not intended to limit the present invention or corresponding specific embodiments. In addition, each device in the figure is only used to express its relative position and is not depicted in its actual proportion, which will be described together.

Please refer to FIG. 1, which is a signal transmission diagram of a specific embodiment of a wearable weight detection system 1 of the present invention. The present invention provides a wearable weight detection system 1 including a first wearable device 10 which is worn on a user and directly contacts the skin of the user, and includes a first electrode 12 which is used for A small current A is emitted, which is conducted through the user's skin into the user's body; a second wearable device 20 is worn on the user and directly contacts the user's skin. The second wearable device 20 is wireless Is connected to the first wearable device 10 and includes a second electrode 22, the second electrode 22 receives a minute current A through the skin of the user, and the second wearable device 20 calculates the minute current A through one of the users An impedance value Z; and a processor 30 coupled to the second wearable device 20 to receive the impedance value Z of the user, the processor 30 pre-stores an initial body composition ratio value of the user, and calculates the user based on the impedance value Z One of the body composition ratio values. The processor 30 compares the initial body composition ratio value and the body composition ratio value to calculate the amount of weight change of one of the users.

Please refer to FIG. 2, which is a schematic diagram of wearing of a wearable device according to a specific embodiment of the present invention. As shown in FIG. 2, the wearable weight detection system 1 of the present invention may include a plurality of wearable devices. The specific embodiment of FIG. 2 includes a first wearable device 10 (A), 10 (B), and a second wearable device. Devices 20 (A) and 20 (B). In this embodiment, the first wearable device 10 (A) sends a small current A to the second wearable device 20 (A), and the first wearable device 10 (B) ) Sends a small current A to the second wearable device 20 (B), and calculates the impedance value Z through two sets of small currents A with different paths, but the number of wearable devices and the location of the wearable device are not limited to this. In another specific embodiment, the total number of wearable devices may be singular, and a wearable device has the function of sending out a small current A and receiving a small current A at the same time, so as to achieve a segmented measurement of the impedance value Z. For example, the first wearable device 10 (A) sends a small current A to the first wearable device 10 (B), and the first wearable device 10 (B) sends a small current A to the second wearable device 20 (B). Finally, the second wearable device 20 (B) sends a small current A to the second wearable device 20 (A), thereby measuring the first wearable device 10 (A) to the first wearable in sections. The impedance value of the wearable device 10 (B), the impedance value of the first wearable device 10 (B) to the second wearable device 20 (B), and the second wearable device 20 (B) to the second wearable device 20 (A) impedance value.

It is worth noting that although the smart bracelet and the foot ring are shown as the first wearable device and the second wearable device in the embodiment of FIG. 2, in actual application, the first wearable device and the second wearable device The device may be any smart wearable device, such as shoes, socks, gloves, rings, sleeves, etc., and is not limited thereto.

In a specific embodiment, each wearable device has a wireless transmission module. When a tiny current A is transmitted between the wearable devices, pairing is required. The pairing method can use the wireless transmission module to send short-range broadcast signals. To be done.

Please refer to FIG. 3, which is a functional block diagram of another specific embodiment of the wearable weight detection system 1 of the present invention. In a specific embodiment, the present invention may further include an ultrasonic device 40, an input device 50, and the processor 30 may include a storage unit 32. The ultrasonic device 40 is connected to the processor 30. The ultrasonic device 40 may be an independent device that is in contact with the skin of the user, or it may be configured in the first wearable device or the second wearable device. The ultrasonic device 40 may send an ultrasonic signal into the user to measure the bone density value of the user, and transmit the bone density value to the storage unit 32 of the processor 30 for storage. The input device 50 is connected to the processor 30 and can provide a user to input a personal data, wherein the personal data includes at least one gender, age, height, or weight data. In a specific embodiment, the input device 50 may be included in the processor, and the individual data may be directly input and stored in the storage unit. In another specific embodiment, the input device 50 may be disposed in the first wearable device 10 or the second wearable device 20, and the wireless transmission module of the first wearable device 10 or the second wearable device 20 The individual data is transmitted to the processor 30 and stored in the storage unit 32. In another specific embodiment, the input device 50 may be a weight scale having a wireless transmission function, and the measured weight value may be directly transmitted to the processor 30 and stored in the storage unit 32. In another specific embodiment, the processor 30 may be disposed on the first wearable device 10, the second wearable device 20, a mobile device, or a cloud server.

In another specific embodiment, the wearable weight detection system 1 of the present invention further includes a display screen connected to the processor 30 for displaying the user's body composition ratio value, weight change amount, current weight value, And estimating future weights. The display screen may be disposed on the processor 30, the first wearable device 10, the second wearable device 20, or a mobile device.

Please refer to FIG. 4 and FIG. 5. FIG. 4 is a flowchart of steps of the method for calculating a change in body weight according to the present invention, and FIG. 5 is a flowchart of sub-steps of step S1 of the method for calculating a change in body weight according to the present invention. First, step S1: When a user uses the wearable weight detection system for the first time, an initial weight of one of the users must be measured, and an initial body composition ratio of one of the users must be calculated. Step S1 can be divided into the following sub-steps: Step S11: Enter the user's personal data, where the personal data includes height, age, gender and other data, and store the personal data in the storage unit; Step S12: measure the user's The initial weight value is stored in the storage unit. It is worth mentioning that if the weight value has been entered when the personal data is entered in step S11, step S12 can be skipped; step S13: issued by the wearable device The small current calculates an initial impedance value in the user's body and transmits the initial impedance value to the processor; step S14: using an ultrasonic device to send an ultrasonic signal to detect the user's bone density value, and storing the bone density value in the storage Step S15: The processor first calculates the user's muscle and fat volume based on the individual data stored in the storage unit and the initial impedance value received, and calculates the muscle and fat weight from the fixed density of muscle and fat. The initial weight value is subtracted from the muscle and fat weights to obtain the bone weight, and then the bone weight In bone density bone volume worth to finally obtain the user's body composition ratio of the initial value, wherein the initial value of the composition ratio of body muscle, fat, and the volume ratio of bone. In a specific embodiment, the processor may be connected to a cloud database and compare the data input by the user with multiple data in the cloud database to calculate a more accurate initial body composition ratio value.

Please continue to refer to FIG. 4. After step S1 is completed, proceed to step S2: after a first time, calculate the impedance value of a minute current passing through the user's body, and calculate the user's body composition ratio value based on the impedance value. Step S2 is performed after a period of time in step S1. The first time can be one day, one week, one month, or any time when the user wants to measure body weight and body composition. Similar to step S15, the processor passes a small current through the body. The impedance value is matched with the individual data to calculate the current muscle and fat volume of the user, and the fixed density of muscle and fat is used to calculate the muscle and fat weight. Then, the ultrasound density of the user is used to measure the bone density of the user. Among them, if the bone density is unchanged, it can be assumed that the bone weight is the same. If the bone density is changed, return to step S1 to re-weight (in general, the bone density value will not change for a short time), and finally obtain the user's body composition ratio Value, where the body composition ratio is the volume ratio of muscle, fat, and bone.

Please continue to refer to FIG. 4. After completing step S2, proceed to step S3: the processor compares the initial body composition ratio calculated in step S1 and the body composition ratio calculated in step S2, and calculates the user's weight based on the difference between the two The amount of change.

Please continue to refer to FIG. 4. After step S3 is completed, step S4 is performed: the processor uses the initial weight value and the weight change amount to calculate a current weight value of the user and an estimated future weight value. For example, if the amount of change in body weight indicates that the muscle volume of the body composition ratio value calculated in step S2 is 5 cm greater than the muscle volume of the initial body composition ratio value calculated in step S1, the calculation can be extrapolated using a muscle density of 1.06g / ml With a weight of 5.3g (5 × 1.06), plus the initial weight value, the current weight value can be calculated. And through each measurement of the body composition ratio change, you can automatically calculate the weight value at a certain time in the future. After that, the processor may display the calculated current weight value and future weight value on a display screen of the wearable device or the processor or a mobile device.

Please refer to FIG. 6, which is a flowchart of steps of a specific embodiment of a method for calculating a change in body weight according to the present invention. In a specific embodiment, step S4 further includes step S5: after a second time has elapsed, the initial weight is measured again. The second time in step S5 may be a user-defined time range, such as one week, one month, etc. In another embodiment, the second time may be defined as "when the bone density value changes", for example, if the initial The measured bone density value is 1 g / ml, and the bone density value changed to 0.9 g / ml during a measurement, which means that the user should re-measure the weight to correct the weight value. In a specific embodiment, the processor may record the difference between the user's weight value after each re-calibration and the calculated current weight value, and adjust various calculation factors to achieve a more accurate weight calculation.

In practical applications, the wearable weight detection system of the present invention can be combined with an application of a mobile device, and the user can view the initial weight value, personal data, body composition ratio value, weight change amount, and estimated future weight at any time through the application. Value and other related information. In addition, the application can recommend the user's diet policy, exercise menu, or push advertisement messages that the user may be interested in based on the user's current data.

The invention provides a wearable weight detection system and a method for calculating a weight change amount. A user only needs to measure the weight value on the station at the first measurement, and then use the change amount of the body composition ratio to calculate the user's weight. The amount of change. Compared with the conventional technology, the present invention can use the traditional weight scale in combination with the wearable weight detection system of the present invention to achieve the effect of the body fat meter, and avoid the waste caused by eliminating the traditional weight scale. On the other hand, the wearable weight detection system of the present invention can measure the user's weight change and body composition ratio anytime, anywhere, and estimate the future weight, which is more convenient for users to perform health management.

With the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention can be more clearly described, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the scope of the patents to be applied for in the present invention. Therefore, the scope of the patent scope of the present invention should be interpreted in the broadest sense according to the above description, so that it covers all possible changes and equal arrangements.

Claims (10)

    A wearable weight detection system includes a first wearable device that is worn on a user and directly contacts the skin of the user, and includes a first electrode for emitting a minute current, The minute current is conducted through the user's skin into the user's body; a second wearable device is worn on the user and directly contacts the user's skin, and the second wearable device is wirelessly connected to The first wearable device includes a second electrode, the second electrode receives the minute current through the skin of the user, and the second wearable device calculates an impedance value of the minute current through the user; and A processor coupled to the second wearable device to receive the impedance value, the processor pre-stores an initial body composition ratio value of the user, and calculates a body composition ratio value of the user based on the impedance value, And comparing the initial body composition ratio value and the body composition ratio value to calculate a weight change amount of one of the users.         The wearable body weight detection system described in the first item of the patent application scope further includes an ultrasonic device for transmitting an ultrasonic signal to detect a bone density value of the user. The processor is based on the impedance value and the The bone density value calculates the body composition ratio value.         The wearable weight detection system according to item 2 of the scope of patent application, wherein the ultrasonic device is disposed on the first wearable device or the second wearable device.         The wearable weight detection system according to item 1 of the scope of patent application, wherein the processor includes a storage unit, and the storage unit pre-stores an initial weight value and an initial body composition ratio value, and the processor is based on the initial weight value and The weight change calculates a current weight value of the user and an estimated future weight value.         The wearable weight detection system according to item 1 of the patent application scope, wherein the processor is connected to an input device, and the input device provides input of a body data, wherein the personal data includes at least one gender, age, height, or weight data , And the processor calculates the body composition ratio value of the user based on the personal data and the impedance value.         The wearable body weight detection system according to item 1 of the scope of patent application, wherein the initial body composition ratio value and the body composition ratio value are a volume ratio of muscle, fat, and bone.         The wearable weight detection system according to item 1 of the patent application scope, wherein the processor is disposed on the first wearable device, the second wearable device, a mobile device, or a cloud.         A method for calculating a weight change amount includes the following steps: S1: measuring an initial weight value of a user and calculating an initial body composition ratio value of the user; S2: calculating a minute after a first time A current passes through an impedance value in the user's body, and a body composition ratio value of the user is calculated according to the impedance value; S3: calculates a body weight change of the user according to the initial body composition ratio value and the body composition ratio value. And S4: using the initial weight value and the weight change amount to calculate a current weight value of the user and an estimated future weight value.         The method for calculating a weight change amount as described in the patent application range 8, wherein step S1 further includes the following sub-steps: S11: inputting personal information of the user; S12: measuring the initial weight value of the user; S13: Calculate an initial impedance value of the minute current passing through the user's body; S14: measure a bone density value of the user; and S15: based on the personal data, the initial weight value, the initial impedance value, and the bone density The value calculates the initial body composition ratio value of the user.         The method for calculating a change in body weight as described in the application patent range 8, wherein the initial body composition ratio value and the body composition ratio value are a volume ratio of muscle, fat and bone.