CN1316840C - Mobile phone with fat-measuring function and its fat-measuring method - Google Patents

Abstract

A mobile phone with fat measuring function comprises a mobile phone main control module, a display device, a fat measuring control circuit, a constant current electrode pair and a voltage measuring electrode pair. The display device is coupled with the mobile phone main control module. The fat measuring control circuit is coupled with the mobile phone main control module. The constant current electrode pair and the voltage measuring electrode pair are both coupled with the fat measuring control circuit. When a user contacts the constant current electrode pair and the voltage measuring electrode pair, the fat measuring control circuit applies a preset current between the constant current electrode pair, generates a body fat rate of the user according to a measuring voltage result and body weight data of the user generated by the preset current in the voltage measuring electrode pair, and displays the body fat rate of the user on the display device.

Description

Mobile phone with fat-measuring function and its fat-measuring method

technical field

The present invention relates to a mobile phone, and in particular to a mobile phone with a fat measuring function and a fat measuring method thereof.

Background technique

With the advancement of technology, mobile phones have played an important role in people's daily life. Through the wireless transmission of mobile phones, information can be quickly conveyed, and people can also quickly get the relevant information they want through wireless transmission.

On the other hand, with the rise of health awareness, the use of fat measuring machines is becoming more and more common. By measuring the personal body fat percentage through the fat measuring machine, the user can easily carry out personal health management. By knowing the individual's body fat percentage, the user can know whether he has excess body fat. Among them, the body fat percentage refers to the ratio of body fat to body weight. Excessive body fat percentage can easily lead to adult diseases such as high blood pressure, heart disease, diabetes, and cancer.

However, traditional fat measuring machines cannot provide users with relevant exercise recommendations or diet recommendations based on the user's body fat percentage. Traditional fat measuring machines cannot be connected with medical centers to track the user's body fat percentage and health status. If the user's body fat rate can be quickly transmitted to the medical center through the wireless transmission of the mobile phone, and the medical center can provide professional advice and health tracking, I believe it will be of great help to the maintenance of personal health.

Contents of the invention

In view of this, the object of the present invention is to provide a mobile phone with a fat measuring function and a fat measuring method thereof. Users can use the mobile phone with fat measuring function of the present invention to measure fat, and the obtained body fat percentage can be quickly transmitted to the medical center through wireless transmission. Through the rapidity and real-time nature of the wireless network, users can receive professional advice and health tracking from the medical center in real time through their mobile phones. For the user's health, the present invention does provide effective help.

According to the purpose of the present invention, a mobile phone that can measure a user's body fat percentage according to a user's body weight data is proposed, including a mobile phone main control module, a display device, a fat measuring control circuit, and a certain current electrode pair paired with a voltage measuring electrode. The display device is coupled with the main control module of the mobile phone. The fat measuring control circuit is coupled with the main control module of the mobile phone. The constant current electrode pair is coupled with the fat measuring control circuit. The voltage measuring electrode pair is also coupled with the fat measuring control circuit. Wherein, when the user touches the constant current electrode pair and the voltage measurement electrode pair, the fat measuring control circuit applies a preset current between the constant current electrode pair, and a measurement voltage result generated by the voltage measurement electrode pair according to the preset current and the user's weight data to generate the user's body fat percentage and display the user's body fat percentage on the display device.

The invention provides a mobile phone capable of measuring a user's body fat percentage according to a user's body weight data, comprising: a mobile phone main control module; a display device coupled with the mobile phone main control module; a fat measuring A control circuit, coupled with the main control module of the mobile phone; a certain current electrode pair, coupled with the fat measuring control circuit; a voltage measurement electrode pair, coupled with the fat measuring control circuit; and a storage device, connected with the fat measuring control circuit The main control module of the mobile phone is coupled, and the storage device stores an authorized user's fat rate; wherein, when the user touches the constant current electrode pair and the voltage measurement electrode pair, the fat measurement control circuit A preset current is applied between the electrode pairs of the predetermined current, and a body fat percentage of the user is generated according to a measurement voltage result generated by the voltage measurement electrode pair and the user's body weight data by the preset current, and the The user's body fat percentage is displayed on the display device; wherein, when the user's body fat percentage exceeds a certain error of the authorized user's fat percentage, the main control module of the mobile phone stops the normal booting process of the mobile phone .

The present invention is also a mobile phone capable of measuring a user's body fat percentage according to a user's body weight data, comprising: a mobile phone main control module; a display device coupled with the mobile phone main control module; a fat measuring A control circuit, coupled with the main control module of the mobile phone; a certain current electrode pair, coupled with the fat measuring control circuit; a voltage measurement electrode pair, coupled with the fat measuring control circuit; and a storage device, connected with the fat measuring control circuit The main control module of the mobile phone is coupled, and the storage device stores a target body fat percentage range set by the user; wherein, when the user touches the constant current electrode pair and the voltage measurement electrode pair, the measurement The fat control circuit applies a preset current between the constant current electrode pair, and generates the user body weight data according to a measured voltage result generated by the preset current on the voltage measurement electrode pair and the user's body weight data. body fat percentage, and display the user's body fat percentage on the display device; wherein, when the user's body fat percentage exceeds the range of the target body fat percentage, the main control module of the mobile phone will selectively limit the The talking time of the mobile phone or the number of calls that can be made by the user within a certain period of time.

According to another object of the present invention, a method for measuring fat on a mobile phone is proposed. The mobile phone has a mobile phone main control module, a display device, a fat measuring control circuit, a certain current electrode pair and a voltage measurement electrode pair. The display device is coupled with the main control module of the mobile phone, and the fat measuring control circuit is coupled with the main control module of the mobile phone. Both the constant current electrode pair and the voltage measurement electrode pair are coupled with the fat measuring control circuit. The fat measuring method of the present invention comprises the following steps. Firstly, the main control module of the mobile phone retrieves a piece of personal data of a user, and the personal data at least includes a piece of weight data of the user. Then, the user touches the constant current electrode pair and the voltage measurement electrode pair, so that the fat measuring control circuit measures a bioelectrical impedance of the user. Then, the fat measuring control circuit generates the body fat percentage of the user according to the bioelectrical impedance and personal data, and displays the body fat percentage on the display device.

The invention provides a method for measuring fat on a mobile phone. The mobile phone has a mobile phone main control module, a display device, a fat measuring control circuit, a certain current electrode pair, a voltage measurement electrode pair and a storage device , the display device is coupled to the main control module of the mobile phone, the fat measurement control circuit is coupled to the main control module of the mobile phone, the constant current electrode pair and the voltage measurement electrode pair are both connected to the The fat measurement control circuit is coupled, the storage device is coupled with the main control module of the mobile phone, and the storage device stores the fat percentage of an authorized user. The method includes the following steps: the main control module of the mobile phone retrieves a user A piece of personal data, the personal data at least includes a piece of weight data of the user; the user touches the pair of constant current electrodes and the pair of voltage measurement electrodes, so that the fat measurement control circuit measures the user's weight a bioelectrical impedance; the fat measurement control circuit generates the body fat percentage of the user according to the bioelectrical impedance and the personal data, and displays the body fat percentage on the display device; and judges the body fat percentage Whether the fat rate exceeds a certain error of the authorized user's fat rate, if so, the main control module of the mobile phone stops the normal booting procedure of the mobile phone.

The present invention also provides a method for measuring fat on a mobile phone. The mobile phone has a mobile phone main control module, a display device, a fat measuring control circuit, a certain current electrode pair, a voltage measurement electrode pair and a memory device, the display device is coupled to the main control module of the mobile phone, the fat measurement control circuit is coupled to the main control module of the mobile phone, the constant current electrode pair and the voltage measurement electrode pair are both connected to the The fat measurement control circuit is coupled, the storage device is coupled with the main control module of the mobile phone, and the storage device stores a target body fat percentage range set by the user. The method includes the following steps: the mobile phone main control module The control module retrieves a personal data of a user, and the personal data includes at least a body weight data of the user; the user touches the pair of constant current electrodes and the pair of voltage measurement electrodes, so that the fat measurement control The circuit measures a bioelectrical impedance of the user; the fat measurement control circuit generates a body fat percentage of the user according to the bioelectrical impedance and the personal data, and displays the body fat percentage on the display device and judging whether the user's body fat percentage exceeds the target body fat percentage range, if so, the mobile phone main control module selectively limits the user's talk time or use of the mobile phone within a certain period of time The number of calls that can be made.

Description of drawings

In order to make the above-mentioned purposes, features, and advantages of the present invention more comprehensible, a preferred embodiment is specifically cited below, together with the accompanying drawings, as follows:

Fig. 1 shows a block diagram of a mobile phone with fat measuring function according to a preferred embodiment of the present invention.

Fig. 2A shows a front view of the mobile phone with fat measuring function of the present invention.

Fig. 2B shows the rear view of the mobile phone with fat measuring function of the present invention.

FIG. 3 shows a detailed block diagram of the fat measuring control circuit of FIG. 1 .

Fig. 4 shows a flowchart of a first application and a second application of the mobile phone of the present invention.

FIG. 5 shows a flowchart of a third application of the mobile phone of the present invention.

Fig. 6 shows a flowchart of a fourth application of the present invention.

Detailed ways

The spirit of the mobile phone with fat-measuring function and its fat-measuring method of the present invention is to let the mobile phone have the function of fat-measuring at the same time, the user can not only measure fat anytime and anywhere, but also obtain the body fat percentage quickly It is sent to the medical center by wireless transmission. Users can also receive professional advice and health tracking from the medical center in real time through their mobile phones. In addition to this function, the mobile phone with fat measuring function of the present invention can also be used to communicate with the base station to receive a suggested menu. The suggested menu may be a menu suitable for the user among menus of restaurants near where the user is located. Moreover, the body fat percentage measured by the mobile phone with fat measuring function of the present invention can also be used to identify the identity of the user of the mobile phone.

Please refer to Fig. 1 and Fig. 2A and 2B at the same time, wherein Fig. 1 shows a block diagram of a mobile phone with a fat measuring function according to a preferred embodiment of the present invention, and Fig. 2A shows a mobile phone with a fat measuring function according to the present invention The front view of the mobile phone, while Fig. 2B shows the rear view of the mobile phone with fat measuring function of the present invention. The mobile phone 100 with fat measuring function of the present invention has a shell 202, a mobile phone main control module 102, a fat measuring control circuit 104, a constant current electrode pair 106, a voltage measuring electrode pair 108, a data input device 110, A storage device 112 , a display device 114 and a speaker 116 .

The mobile phone main control module 102 is used to control the mobile phone 100 and can send and receive wireless signals. The fat measurement control circuit 104 is coupled to the main control module 102 of the mobile phone. The constant current electrode pair 106 includes constant current electrodes 204A and 204B, and the voltage measurement electrode pair 108 includes voltage measurement electrodes 206A and 206B. The constant current electrodes 204A and 204B are disposed on the front shell 202 of the mobile phone and coupled with the fat measuring control circuit 104 . The voltage measuring electrodes 206A and 206B are arranged on the casing 202 at the back of the mobile phone and coupled with the fat measuring control circuit 104 . It is preferable to have a fixed distance between the constant current electrodes 204A and 204B to avoid signal interference. Preferably, the constant current electrodes 204A and 204B are respectively disposed at the upper right corner and the lower left corner of the casing 202 . The voltage measuring electrodes 206A and 206B are respectively disposed on the shell 202 on the back of the mobile phone opposite to the constant current electrodes 204A and 204B. In this way, the constant current electrode 204A and the voltage measurement electrode 206A are arranged on the right side of the mobile phone casing, and the constant current electrode 204B and the voltage measurement electrode 206B are arranged on the left side of the mobile phone casing. 206A, and when the thumb and forefinger of the left hand touch the electrodes 204B and 206B respectively, the text on the screen of the mobile phone can still be kept at a readable angle.

The data input device 110 is used for users to input their personal data, the personal data at least includes the user's gender, weight data and height data. The storage device 112 is used for storing personal data of the user. The display device 114 is used to display the personal data entered by the user and the measured body fat percentage of the user. The speaker 116 can be used to remind the user to input relevant data or to remind the user that the body fat percentage has been calculated and displayed on the display device 114 in addition to the voice of the other party during the call.

Wherein, after the user touches the constant current electrodes 204A and 204B and the voltage measuring electrodes 206A and 206B, the fat measurement control circuit 104 will simultaneously generate the user's body fat percentage according to the user's personal data. Preferably, the user touches the constant current electrode pair 106 and the voltage measurement electrode pair 108 with the thumb and index finger of both hands to measure respectively, for example, the user's right thumb and right index finger respectively press the constant current electrode 204A and the voltage measurement electrode On the measurement electrode 206A, the user's left thumb and left index finger respectively press the constant current electrode 204B and the voltage measurement electrode 206B to perform measurement.

The fat measuring control circuit 104 of the mobile phone 100 of the present invention can have various implementations. The fat measurement control circuit 104 mainly uses bioelectric impedance analysis (Bioelectric Impedance Analysis, BIA) to measure the user's body fat mass to obtain the user's body fat percentage. The main principle of this method is to use a safe and small amount of electric current to pass through the user's body for measurement. Since the fat in the human body is almost non-conductive, while the water in the muscle tissue is easy to conduct electricity, the body fat can be estimated by measuring the user's bioelectrical impedance.

Therefore, the fat measuring control circuit 104 at least includes a voltage measuring device coupled to the voltage measuring electrode pair 108 . When the user touches the constant current electrode pair 106 and the voltage measuring electrode pair 108 , an alternating current signal flows through the user's body, and the voltage measuring device senses a voltage across the voltage measuring electrode pair 108 . The fat measurement control circuit 104 obtains the user's body fat percentage according to the cross-voltage and the weight data in the personal data input by the user. An example of implementing the fat measuring control circuit 104 is given to illustrate it.

Please refer to FIG. 3 , which shows a detailed block diagram of the fat measurement control circuit 104 in FIG. 1 . The fat measuring control circuit 104 includes a sine wave oscillator 302 , a voltage-to-current converter 306 , a reference resistor 308 , a voltage measuring device 310 , an analog-to-digital converter 312 and a body fat rate generating device 314 . The sine wave oscillator 302 is used for providing an AC voltage signal S1. The voltage-to-current converter 306 is used to convert the AC voltage signal S1 into an AC current signal S2. The reference resistor 308 is coupled to the voltage-to-current converter 306 . The voltage measurement device 310 is coupled to the voltage measurement electrodes 206A and 206B. When a living body 304 to be tested, such as a user, contacts the constant current electrodes 204A and 204B and the voltage measuring electrodes 206A and 206B, the AC current signal S2 flows through the reference resistor 308 and the user's body. At this moment, the voltage measurement device 310 senses the voltage V across the voltage measurement electrodes 206A and 206B. The analog-to-digital converter 312 is used to convert the voltage V across into a digital data S3. The body fat percentage generating device 314 is used to calculate the user's body fat mass according to the digital data S3 and the user's height data and weight data. The body fat percentage is obtained by dividing the body fat percentage by the user's weight.

Various applications of the mobile phone with fat measuring function of the present invention are now described as follows.

The first application is that the user's body fat percentage can be quickly transmitted to the medical center through wireless transmission through the mobile phone of the present invention. Users can also receive professional advice and health tracking from the medical center in real time through their mobile phones. In this way, when the user knows his body fat percentage, he can immediately send it to the medical center, and the medical center will propose professional dietary menu suggestions based on the user's personal medical record data (eating habits, allergies, chronic diseases), so as to be able to Adjust the amount of exercise or diet on the day or in the near future. This is quite helpful for the user's health. Or, the main control module 102 of the mobile phone can also directly select one of the multiple recommended exercise quantities according to the user's body fat percentage from the multi-item exercise quantities and the multi-item suggestion menus stored in the storage device 112 of the mobile phone 100 of the present invention. One of the one or more suggested menus is output on the display device 114 for the user's reference.

The second kind of application is that the mobile phone with the fat measuring function of the present invention can communicate with the base station, and the telecom operator cooperates to provide the value-added service of "receiving the suggested menu that is in line with the healthy diet near the user's location"; Store suggested menus designed by restaurants in various regions for the health of customers with different fat percentages. In this way, when the user uses the mobile phone to measure fat and proposes a restaurant menu request, the telecom operator will select a suggested menu corresponding to the user's body fat percentage from the menus of nearby restaurants at the user's location. In this way, when the user goes out, he can quickly obtain the catering information suitable for him, which is very convenient.

Please refer to FIG. 4 , which shows the flowcharts of the first application and the second application of the mobile phone of the present invention. After the mobile phone 100 is turned on, firstly, enter step 402 to determine whether to measure fat, if yes, enter step 404, if not, end this process. In step 404 , it is determined whether the storage device 112 stores the user's personal data, if not, proceed to step 406 to set the user's personal data; if yes, proceed to step 408 . In step 406, the user at least inputs his weight data and height data. In addition, users can also enter their age and gender to make their personal data more complete. After the input is completed, the user data will be stored in the storage device 112 .

In step 408 , the mobile phone main control module 102 retrieves the user's personal data from the storage device 112 . Next, enter step 410, start to measure the user's bioelectrical impedance. Then, enter step 412 , calculate the user's body fat percentage and display it on the display device 114 .

Afterwards, step 414 is executed to allow the user to select one of the following two functions: (1) provide suggested exercise or suggested menu; (2) provide suggested menu of nearby restaurants. When the user selects (1), then step 416 is executed; and when the user selects (2), the process proceeds to step 418 .

In step 416, it is judged whether the recommended amount of exercise or the suggested menu is provided by the medical center, if yes, go to step 422; if not, go to step 420. In step 422, the main control module 102 of the mobile phone sends the user's body fat percentage to the medical center, and then enters step 424, where the main control module 102 of the mobile phone receives the body fat percentage corresponding to the user returned by the medical center The recommended exercise level or suggested menu for the rate will be displayed and the process will end. And in step 420, the main control module 102 of the mobile phone selects one of the multiple recommended exercise amounts or one of the multiple suggested menus stored in the storage device 112 to output according to the user's body fat percentage, and displays it on the display device . Then, end this process.

In step 418, the mobile phone main control module 102 transmits the user's body fat percentage to the base station. Next, enter step 428, the main control module 102 of the mobile phone receives the suggested menu corresponding to the user's body fat percentage returned by the base station. Wherein, the suggested menu is a menu corresponding to the user's body fat percentage among menus provided by restaurants near where the mobile phone is located.

In addition to the above two applications, the present invention has a third application for identifying the identity of the user of the mobile phone. The storage device 112 of the mobile phone of the present invention can pre-store the body fat percentage obtained from the user's last measurement, which is defined as the authorized user's fat percentage. When the mobile phone is turned on next time, the user's body fat percentage will be re-detected. When the measured user's body fat percentage is close to the authorized user's fat percentage (the last measured body fat percentage) stored in the storage device 112, for example, within a 3% error, it can be determined that the new user is As the original user, the mobile phone can be turned on normally. The flowchart of this application is shown in Figure 5.

After the mobile phone is turned on, steps 502 to 510 are executed, wherein steps 502 to 510 are the same as steps 402 to 410 and will not be repeated here. Then, execute step 512 to judge whether the measured new user's body fat percentage is close to the authorized user's fat percentage, if not, then enter step 514, the mobile phone will not be able to start normally, and must enter a group of specific unlocking passwords before it can be activated. Use a mobile phone; if so, then enter step 516, and the mobile phone will be turned on normally.

The present invention has a fourth application of semi-compulsively reminding the user to change eating habits/increase exercise. Please refer to FIG. 6 , which shows a flow chart of the fourth application of the present invention. The mobile phone storage device 112 of the present invention can pre-store the target body fat percentage range set by the user (such as: there should be a body fat percentage under healthy conditions), and when the mobile phone is turned on later, the mobile phone will detect the user's body fat percentage. Body fat percentage, as shown in step 602. Next, enter step 604, and determine whether the measured body fat percentage of the user falls within the range of the target body fat percentage. When the measured body fat percentage of the user falls within the target body fat percentage range, then enter step 606, and the mobile phone main control module 102 will turn on the mobile phone to enter the "normal mode" operation.

And when the measured body fat percentage of the user exceeds the target body fat percentage range, although the mobile phone can be turned on, the mobile phone main control module 102 will make the mobile phone enter the "body fat percentage adjustment mode", as shown in step 608. Show. Such as: (1) the display device 114 of the mobile phone will automatically display a warning screen to remind the user to pay attention to health/exercise/change eating habits, or start a screen saver to remind the user to pay attention to health, (2) limit daily users call time, or (3) limit the number of calls a user can make per day.

In this way, the mobile phone will continue to operate in the "body fat percentage adjustment mode" until the user's body fat percentage falls within the target body fat percentage range when the mobile phone is turned on, and then it can enter into the "normal mode" operation. In this way, every time the user uses the mobile phone, the screen and usage restrictions of the mobile phone will remind the user to pay attention to health.

The mobile phone of the present invention can implement only one of the above-mentioned several applications, or implement all the above-mentioned applications simultaneously.

In summary, although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make various modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall prevail as defined by the appended claims.

Claims (4)

1. A mobile phone capable of measuring a user's body fat percentage according to a user's weight data, comprising: A main control module of a mobile phone; A display device, coupled with the main control module of the mobile phone; A fat measuring control circuit, coupled with the main control module of the mobile phone; A certain current electrode pair is coupled with the fat measuring control circuit; a pair of voltage measuring electrodes coupled to the fat measuring control circuit; and A storage device, coupled with the main control module of the mobile phone, the storage device stores an authorized user's fat percentage; Wherein, when the user touches the constant current electrode pair and the voltage measurement electrode pair, the fat measuring control circuit applies a preset current between the constant current electrode pair, according to the preset current A measurement voltage result generated by the voltage measuring electrode pair and the user's body weight data generate the user's body fat percentage, and display the user's body fat percentage on the display device; Wherein, when the user's body fat percentage exceeds a certain error of the authorized user's fat percentage, the main control module of the mobile phone stops the normal booting procedure of the mobile phone. 2. A mobile phone capable of measuring a user's body fat percentage according to a user's weight data, comprising: A main control module of a mobile phone; A display device, coupled with the main control module of the mobile phone; A fat measuring control circuit, coupled with the main control module of the mobile phone; A certain current electrode pair is coupled with the fat measuring control circuit; a pair of voltage measuring electrodes coupled to the fat measuring control circuit; and A storage device, coupled with the main control module of the mobile phone, the storage device stores a target body fat percentage range set by the user; Wherein, when the user touches the constant current electrode pair and the voltage measurement electrode pair, the fat measuring control circuit applies a preset current between the constant current electrode pair, according to the preset current A measurement voltage result generated by the voltage measuring electrode pair and the user's body weight data generate the user's body fat percentage, and display the user's body fat percentage on the display device; Wherein, when the user's body fat percentage exceeds the range of the target body fat percentage, the main control module of the mobile phone will selectively limit the talking time or the ability of the user to use the mobile phone within a certain period of time. The number of calls made. 3. A method for measuring fat on a mobile phone, the mobile phone has a mobile phone main control module, a display device, a fat measuring control circuit, a certain current electrode pair, a voltage measurement electrode pair and a storage device, The display device is coupled to the main control module of the mobile phone, the fat measuring control circuit is coupled to the main control module of the mobile phone, and the constant current electrode pair and the voltage measurement electrode pair are both connected to the measuring cell. The fat control circuit is coupled, the storage device is coupled with the main control module of the mobile phone, and the storage device stores an authorized user fat rate. The method includes the following steps: The main control module of the mobile phone retrieves a piece of personal data of a user, and the personal data includes at least a piece of weight data of the user; The user contacts the constant current electrode pair and the voltage measurement electrode pair, so that the fat measurement control circuit measures a bioelectrical impedance of the user; The fat measurement control circuit generates the body fat percentage of the user according to the bioelectrical impedance and the personal data, and displays the body fat percentage on the display device; and Judging whether the body fat percentage exceeds a certain error of the authorized user's fat percentage, if so, the main control module of the mobile phone stops the normal booting procedure of the mobile phone. 4. A method for measuring fat on a mobile phone, the mobile phone has a mobile phone main control module, a display device, a fat measuring control circuit, a certain current electrode pair, a voltage measurement electrode pair and a storage device, The display device is coupled to the main control module of the mobile phone, the fat measuring control circuit is coupled to the main control module of the mobile phone, and the constant current electrode pair and the voltage measurement electrode pair are both connected to the measuring cell. The fat control circuit is coupled, the storage device is coupled with the main control module of the mobile phone, and the storage device stores a target body fat percentage range set by the user. The method includes the following steps: The main control module of the mobile phone retrieves a piece of personal data of a user, and the personal data includes at least a piece of weight data of the user; The user contacts the constant current electrode pair and the voltage measurement electrode pair, so that the fat measurement control circuit measures a bioelectrical impedance of the user; The fat measurement control circuit generates the body fat percentage of the user according to the bioelectrical impedance and the personal data, and displays the body fat percentage on the display device; and Judging whether the user's body fat percentage exceeds the range of the target body fat percentage, if so, the main control module of the mobile phone selectively limits the talk time or ability of the user to use the mobile phone within a certain period of time. The number of calls made.

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