TW201723439A - Smart weight scale, smart weight management system and method of measuring weight thereof - Google Patents

Abstract

A method of measuring body weight includes receiving a first weight of a user wearing at least one personal item, reading a tag information for indicating a weight corresponding to the at least one personal item, and comparing a difference between the first weight and the weight corresponding to the at least one personal item to compute a second weight, wherein the second weight is a body weight of the user.

Description

Smart weight scale, smart weight management system and related methods for measuring body weight

The invention provides a smart weight scale, a smart weight management system and a related method for measuring the body weight, in particular, a method for measuring the weight of the user's weight and the related measuring body weight when the user wears the personal item. .

In the field of health management (such as weight management), public places such as hospital clinics, company numbers, schools, public institutions, etc., often have health checkpoints or health rooms, and provide weight scales for people to measure weight, but measured The weight value includes the weight of the clothing worn by the user, resulting in inaccurate measurement results. In addition, in order to measure the near-real weight value, the user must remove the clothes worn by the body as much as possible, such as shoes, coats, hats, etc., which will cause inconvenience to the user. Especially when there are many users, such as a routine health check of a group, the above operation will affect the pre-work and preparation time for measuring the weight.

Furthermore, with the rise of health management awareness, more and more people are paying close attention to their own weight, and daily changes in body weight have led to an increasing demand for weight. However, there are currently few smart weight management dedicated to weight management. system.

Therefore, how to provide users with convenient, immediate and accurate measurement of weight service is one of the subjects in the field.

Therefore, the main object of the present invention is to provide a smart weight scale, a weight management system and a related method for measuring body weight, which can provide a convenient, accurate and accurate measurement of the weight of the user when the user wears a personal item. service.

The invention discloses a smart weight management system, a smart weight scale and a related method for measuring body weight. The intelligent weight management system is built on the basis of the Internet of Things, which includes a smart weight scale, at least one RFID tag, a communication network device, and a cloud server. The smart weight scale and the RFID tag belong to the sensing layer of the Internet of Things, which are used to measure the user's weight and user information separately to sense and monitor different scenes and measurement objects. The RFID tag can be embedded in personal items such as clothes, shoes, hats or various wearable devices, and stores the user's personal data and personal item information, such as user identity, measurement time, measurement location, personal items and Correspond to the weight of the item and other information. The communication network device belongs to the network layer of the Internet of Things. The cloud server belongs to the application layer of the Internet of Things. The cloud server can implement the function of the intelligent weight management system by executing the corresponding application software system.

The smart scale can measure the weight data through the weighing sensor, read the relevant time and place through the instant clock and GPS module, and read the label information through the RFID reader, and then calculate the usage based on the label information and weight data. The weight of the person who is not wearing the personal item is finally uploaded to the cloud server through the communication module to upload the user's weight and related measurement time and location information to the communication network device. Therefore, under the framework of the Internet of Things, the smart weight scale, the communication network device and the cloud server are combined with the above operation modes, and the intelligent weight management system of the present invention can provide the user with convenient, instant and accurate weight measurement service.

The main concept of the present invention is to combine the Internet of Things application, design a smart weight management system and a smart weight scale dedicated to weight management, and provide users with convenient, instant and accurate weight measurement services.

First of all, the Internet of Things (IoT) uses network-based technology to share information provided by smart objects through a unified format or standard. Similar network-connected technologies include the Wireless Sensor Network and the Cyber-Physical System (CPS). The wireless sensing network is a network system composed of a wireless data sink (Sink) and a plurality of sensors, and is usually limited to information collection of the internal network. The network entity system can start the corresponding instructions and procedures according to the occurrence of different events, but each network entity system can not exchange information with each other, and can only deal with a single event. Therefore, the emergence of the Internet of Things is to enable each network entity system or wireless sensing network to communicate with each other and transmit information, so that the information that the central information processing system can refer to and analyze is no longer for a single event, but can be targeted Diversified information for integration and analysis.

The Internet of Things can be divided into three levels: the sensing layer, the network layer (Connect), and the application layer (Manage). The sensing layer is used to sense and monitor different scenarios, including devices with sensing, identification, and communication capabilities, such as radio frequency identification (RFID) tags and readers, and Global Positioning System. ) Devices, image processors, and various sensors such as temperature/humidity/infrared/acceleration/luminosity/pressure/volume. The network layer is used to transmit the data collected by the sensing layer to a central information processing system (such as a cloud server or a cloud database) through a wired or wireless communication network, so that the central information processing system can uniformly integrate and analyze data. The application layer is used to enable the technology network to integrate technology with various industries, and to develop corresponding application software systems according to different needs, such as smart bus system, smart health management system, and logistics management system. Therefore, the establishment of the Internet of Things allows the cloud computing to perform the information management, storage and sharing of items, making the interaction between people and objects and things easier.

FIG. 1 is a schematic diagram of a smart weight management system 1 according to an embodiment of the present invention. The smart weight management system 1 includes a smart weight scale 10, at least one radio frequency identification tag 11, a communication network device 12, and a cloud server 13. The smart weight management system 1 is constructed on the basis of the Internet of Things. The smart weight scale 10 and the radio frequency identification tag 11 belong to the sensing layer of the Internet of Things, and are used to measure the user's weight and user information separately for different scenarios and The measurement object is perceived and monitored. The RFID tag 11 can be embedded in personal items such as clothes, shoes, hats, or various types of wearable devices, and stores user's personal information and personal item information, such as user identity, measurement time, measurement location, personal items. And information such as the weight of the item.

The smart scale 10 has a built-in RFID reader for reading the tag information stored in the RFID tag 11. The Smart Weight Scale 10 also has wired and wireless communication functions to transmit user weight and user information to the communication network device 12 through wired and wireless communication functions. The communication network device 12 belongs to the network layer of the Internet of Things, and can communicate through the Internet and corresponding network protocols such as HyperText Transfer Protocol (HTTP) and Transmission Control Protocol (TCP). The user's weight and user information are simultaneously uploaded to the cloud server 13, and the cloud server 13 performs data integration, analysis, and storage. The cloud server 13 belongs to the application layer of the Internet of Things, and can implement the function of the smart weight management system 1 by executing the corresponding application software system.

Specifically, the application software of the smart weight management system 1 can be used by a group or an individual to establish a personal account, and the cloud server 13 records the user's weight in the corresponding account according to the user information read by the smart weight meter 10, and the cloud server The device 13 can also perform statistics based on the old data and the latest data to track the user's weight change. At the same time, the user can log in to the personal account of the smart weight management system 1 through a personal communication device (such as a mobile phone, a tablet computer, a personal computer, etc.) to facilitate the query and tracking of the weight record.

It is worth noting that since the RFID tag 11 can store information such as the personal item and the weight of the corresponding item, the smart scale 10 can calculate the total weight minus the weight of the item when the user wears the personal item. The user's weight is transferred to the cloud server 13 via the communication network device 12. In this way, in combination with the application of the Internet of Things, the smart weight scale 10 automatically calculates the user's weight and uploads it to the cloud server 13, and the smart weight management system 1 can provide the user with convenient, accurate and accurate weight measurement service. In particular, the intelligent weight management system 1 simplifies the measurement of the pre-work and preparation time of the weight to perform a group routine health check procedure.

2 is a functional block diagram of a smart scale 10 according to an embodiment of the present invention. The smart scale 10 includes a weighing module 100, a microcontroller 101, a display 102, a reader 103, a communication module 104, a battery module 105, and an input interface 106.

The weighing module 100 is coupled to the microcontroller 101 and includes at least one weighing sensor 1000, a low pass filter 1001, an operational amplifier (AMP) 1002, and an analog to digital converter 1003. A weight of data is generated to the microcontroller 101. Generally, when the weight module 100 does not detect the weight, the smart scale 10 is in the power-saving sleep mode; when the weight module 100 continuously detects the weight in a period of time, the weight module 100 can A wake-up signal is generated to the microcontroller 101 for the microcontroller 101 to enter the operational mode to receive the weight data.

In operation, when the user is standing on the smart scale 10, or when the personal item is placed on the smart scale 10, the weight sensor 1000 can sense the weight of the user or item to produce an analogous form of weight information. The analog signal is filtered, amplified, and digitally converted by the low pass filter 1001, the operational amplifier 1002, and the analog to digital converter 1003 to generate weight data in the form of digital signals to the microcontroller 101. In other words, when the personal item worn by the user stands on the smart scale 10, the weighing module 100 can generate the total weight data W_total (including the weight of the personal item worn by the user and the weight of the user); when the personal item is placed When on the smart scale 10, the weighing module 100 can generate item weight data W_item.

The microcontroller 101 is coupled to the weighing module 100, the display 102, the reader 103, the communication module 104, the battery module 105, and the input interface 106. The microprocessor 101 includes a microprocessor 1010 and an instant clock (Real-Time). A clock (RTC) 1011, a power supply circuit 1012, and a memory 1013. The instant clock 1011 can provide a measurement time for the weight data W_total or the item weight data W_item. The power supply circuit 1012 is configured to receive the supply voltage VCC1 to drive the microcontroller 101. The memory 1013 can be any data storage device for storing the processing result of the microcontroller 101 and the weight data W_total and W_item or the tag data read by the reader 103. The memory 1013 can be a read-only memory ( Read-only memory, ROM) or random-access memory (RAM).

The microprocessor 1010 can know, according to the tag information TAG_info generated by the reader 103, why the item worn by the user and its corresponding weight (assuming that the total weight of the item worn by the user is W_item). Therefore, the microprocessor 1010 can calculate the actual weight data W_data of the user (ie, the user's weight W_data=W_total-W_item) by subtracting the item weight W_item from the total weight W_total. Next, the microprocessor 1010 determines whether to transfer the user weight data W_data to the display 102 and the communication module 104 according to the command CMD generated by the input interface 106, and causes the display 102 to display the number corresponding to the user weight data W_data, and let the communication mode The group 104 uploads the user weight data W_data to the cloud server 13. The microprocessor 1010 can be an application-specific integrated circuit (ASIC) for implementing an integrated circuit (I2C), a universal asynchronous receiver (Universal Asynchronous Receiver/ Transmitter, UART), Serial Peripheral Interface Bus (SPI), general purpose I/O, and other hardware interface for message transceiving and data processing.

The display 102 is coupled to the microcontroller 101 for displaying the total weight W_total or the item weight W_item corresponding to the number, user information and other related information. The input interface 106 is coupled to the microcontroller 101 for generating the command CMD to the microcontroller 101 for controlling the operation of the smart scale 10, wherein the input interface 106 can be a keyboard or a touch input interface, or any form Input interface. For example, the user can measure the item weight W_item of the personal item using the smart scale 10 to write the item weight W_item to the radio frequency identification tag 11. In operation, the user can perform a registration procedure through the input interface 106 according to the instruction of the display 102, and let the smart scale 10 as a general scale to measure the weight of the item W_item, and then the item name of the personal item and the weight of the corresponding item W_item The radio frequency identification tag 11 is written (actually executable by the reader 103). When the smart scale 10 is used as a general scale, the display 102 can display the number corresponding to the item weight W_item; when the smart scale 10 is used as the general weight time (for example, the reader 103 does not detect a legitimate radio frequency identification tag, indicating that the user The display 102 can simply display the measured weight without registering the personal account with the smart weight management system 1. Alternatively, when the reader 103 detects the legitimate radio frequency identification tag 11, the display 102 can display the read user data to confirm whether the user is a person.

The reader 103 is coupled to the microcontroller 101, the communication module 104, and the battery module 105. The microprocessor 103 includes a microprocessor 1030, an analog signal interface 1031, a power supply circuit 1032, and an induction coil 1033. The reader 103 can be a radio frequency identification reader for sensing the user information (analog signal) stored in the radio frequency identification tag 11 through the induction coil 1033, and converting the user information by analogy through the microprocessor 1030. In digital form, tag information TAG_info is generated to the microcontroller 101 and the communication module 104. In an embodiment, the reader 103 can also include a near field communication function for reading user information stored in the RFID tag 11 through near field communication, so that the tag information TAG_info can also be generated to the microcontroller 101. And a communication module 104. The power supply circuit 1032 is configured to receive the supply voltage VCC1 to drive the reader 103.

The communication module 104 is coupled to the microcontroller 101, the reader 103, and the battery module 105, and includes a microprocessor 1040, a wireless communication module 1041, a power supply circuit 1042, and a user identity module (Subscriber Identity). A module (SIM) interface 1044, a Global Positioning System (GPS) module 1045, a Universal Serial Bus (USB) interface 1046, and antennas 1047 and 1043. The communication module 104 is configured to transmit the data collected by the sensing layer to the cloud server 13 through a wired or wireless communication network. The power circuit 1042 is configured to receive the supply voltage VCC2 to drive the communication module 104.

For wireless communication, wireless communication module 1041 supports the second generation (2 ^nd Generation, referred to as 2G), third generation (3 ^rd Generation, referred to as 3G) and fourth-generation mobile communication technology (4 ^th Generation, referred to as 4G) mobile Communication technology, or any feasible mobile communication technology. When transmitting the wireless signal, the wireless communication module 1041 can convert the tag information TAG_info and the user weight data W_data into a 2G or 3G or 4G mobile communication technology to interpret the wireless RF signal, and then transmit the wireless RF signal through the antenna 1043 to In the air, the weight data W_data and the tag information TAG_info are uploaded to the cloud server 13. The wireless communication module 1041 can sense the wireless RF signal through the antenna 1043 and receive the data from the cloud server 13 after receiving the wireless signal. Therefore, through the above operation, the wireless communication module 1041 can implement wireless communication. The SIM interface 1044 can provide user identity recognition of the smart scale 10 for user authentication and identification by the 2G or 3G or 4G communication network device 12 and the corresponding mobile communication provider. In addition, the GPS module 1045 can receive the positioning signal from the satellite through the satellite antenna 1047 to provide the location information of the user to the cloud server 13. In an embodiment, the communication module 104 can further include a Bluetooth module, a Wi-Fi module, or a Zigbee module to connect to the communication network device 12 indirectly or directly through different wireless communication technologies.

For wired communication, the USB interface 1046 can be connected to an external storage device or an external computer device to output the tag information TAG_info and the weight data W_data. For example, the user can download the tag information TAG_info and the weight data W_data to the portable mobile device through the USB interface 1046. In an embodiment, the communication module 104 can further include an Ethernet module and an Ethernet port, and transmit the tag information TAG_info and the weight data W_data to the cloud server 13 via the Ethernet.

The battery module 105 includes a plurality of batteries 1050 and voltage converters 1051 and 1052 for respectively converting battery power into supply voltages VCC1 and VCC2 through voltage converters 1051 and 1052 to drive internal components of the smart scale 10. For example, the battery module 105 can supply the supply voltage VCC1 to the weight sensor 1000, the power supply circuit 1012, 1032 to drive the weighing module 100, the microcontroller 101, and the reader 103, and provide the supply voltage VCC2 to the power supply circuit 1042. To drive the communication module 104. In one embodiment, the supply voltages VCC1 and VCC2 may be 3.3 and 1.8 volts, respectively. However, the present invention is not limited thereto, and the magnitude of the supply voltage may be adjusted according to actual needs.

Through the above circuit structure, the smart scale 10 can realize the function of automatically calculating the user's weight and uploading to the cloud server 13 when the user wears a personal item. The operation of the smart scale 10 can be summarized as a process 30. As shown in FIG. 3, the process 30 can be an application software for the Internet of Things, and is compiled into a code and stored in the internal memory device of the smart scale 10. (e.g., memory 1013) to provide a weight measurement service to the smart weight scale 10. The process 30 can include the following steps.

Step 300: Start.

Step 301: In the sleep mode.

Step 302: Determine whether weight measurement is performed. If yes, go to step 303; if no; go back to step 301.

Step 303: Read the weight data through the weighing module and read the measurement time through the instant clock.

Step 304: Wake up the reader to read the tag information through the reader.

Step 305: Determine whether the tag information is valid. If yes, go to step 306; if no; go to step 308.

Step 306: Calculate the user's weight based on the label information and the weight data.

Step 307: Receive an instruction through the input interface to determine whether the actual weight is displayed on the display. If yes, go to step 308; if no; go to step 309.

Step 308: Display the weight data through the display. Go back to step 301.

Step 309: Wake up the communication module, and transmit the label information, the weight data, and the measurement time to the communication module.

Step 310: Encoding and packaging the label information, the weight data, and the measurement time through the communication module to generate current data and perform connection.

Step 311: Determine whether the communication module is connected to the cloud server. If yes, go to step 313; if no; go to step 312.

Step 312: Save the current data as the previous data. Go to step 316.

Step 313: Determine whether there is any previous data not uploaded to the cloud server. If yes, go to step 314; if no; go to step 315.

Step 314: Upload the previous data to the cloud server.

Step 315: Upload the current data to the cloud server.

Step 316: End the cloud server connection.

Step 317: End.

According to the process 30, in steps 301 to 303, the smart weight scale is preset to be in the sleep mode (step 301). When the user stands on the smart weight scale, the smart weight scale can determine whether to perform the weight according to the detection result of the weighing module. Measurement (step 302). When it is not necessary to measure the weight, the smart scale returns to sleep mode. When the weight is to be measured, the smart weight meter reads the weight data (ie, the total weight of the user when wearing the personal item) through the weighing module and reads the measurement time through the instant clock (step 303). In one embodiment, the smart scale can simultaneously read the measurement location through the GPS module.

In steps 304 to 309, the smart weight meter wakes up the reader to read the tag information through the reader (step 304), wherein the tag information indicates the user identity, the measurement time, the location, the personal item, and the weight of the corresponding item. . The smart weight scale then determines if the tag information is valid (step 305). When the tag information is valid, the smart weight meter calculates the user's weight when the user does not wear the personal item based on the tag information and the weight data (step 306). The smart weight meter receives an instruction through the input interface to determine whether the actual weight is displayed on the display (step 307). When the instruction indicates that the user's weight needs to be displayed, the smart weight meter displays the user's weight through the display (step 308), and then returns to the sleep mode again; when the instruction indicates that the actual weight is not required to be displayed, the smart weight meter wakes up the communication module. And transmitting the tag information, the weight data, and the measurement time to the communication module (step 309).

In steps 310 to 316, the smart weight meter encodes and encapsulates the label information, the weight data, and the measurement time through the communication module to generate the current data and perform connection (step 310). Then, the smart weight meter determines whether the communication module is connected to the cloud server (step 311). When the communication module is connected to the cloud server (step 312), the smart weight meter determines whether the previous data is not uploaded to the cloud server. Cloud server (step 313). In the case that the previous data is not uploaded, the communication module preferentially uploads the previous data, and then uploads the current data (steps 314 to 315); if no previous data is not uploaded, the communication module directly uploads the current data (step 315) ). When the communication module is not connected to the cloud server, the smart weight meter stores the current data as the previous data, and then uploads when the subsequent communication module is successfully connected to the cloud server. Finally, when the uploadable data (including the previous and current data) has been uploaded, or the previous data that cannot be uploaded but needs to be saved has been saved, the communication module ends the cloud server connection (step 316). At this point, the smart scale can go back to sleep mode to prepare for the next operation.

Please note that in order to ensure that the label information is valid, the user must perform the identity registration process before measuring the weight. Specifically, the user must separately measure the weight of the item of a single personal item, or simultaneously measure the total weight of the item of the plurality of personal items. In one embodiment, the smart weight meter can use the display and the input interface to allow the user to select the item to be worn each time the weight is measured, so as to calculate the actual weight. Therefore, the items of the single personal item are separately measured. Although the weight method is more formal, it is more flexible and more precise. When the weight of the item has been measured, the user can write the information of the user identity, the personal item and the weight of the corresponding item into the radio frequency identification tag through the RFID writer (actually executable by the reader 103).

In short, through the process 30, the smart scale can measure the weight data and the relevant measurement time and place, and then calculate the weight of the user when the user does not wear the personal item according to the label information and the weight data, and finally upload the weight through the communication module. And related measurement time and location information to the cloud server. In this way, under the architecture of the Internet of Things, the smart weight scale, communication network equipment and cloud server can be combined with the application software of the process 30 to provide users with convenient, instant and accurate weight measurement services.

For step 306, the smart weight meter calculates the detailed calculation method of the user's weight when the user does not wear the personal item according to the label information and the weight data, and can be further summarized into a process 40. As shown in FIG. 4, the process 40 can be compiled into a program. The code is stored in an internal memory device (for example, memory 1013) of the smart scale 10 to calculate the actual weight of the user. The process 40 can include the following steps.

Step 400: Start.

Step 401: Read a tag information, where the tag information indicates a user identity and a weight of the item corresponding to each of the at least one person item.

Step 402: Compare the difference between the total weight of the user wearing the at least one person item and the sum of the item weights corresponding to each of the at least one person item to calculate the actual weight of the user.

Step 403: End.

According to the process 40, the smart weight scale compares the difference between the total weight of the user wearing at least one person's item and the sum of the weights of the items corresponding to each of the at least one person's items, respectively, to calculate the actual weight of the user. In this way, the smart weight scale can calculate the actual weight of the user when the user wears a personal item, thereby providing the user with convenient, accurate and accurate weight measurement service.

In summary, the smart scale of the present invention can measure the weight data and the relevant measurement time and place, and then calculate the weight of the user when the user does not wear the personal item according to the label information and the weight data, and finally upload the weight through the communication module and Relevant measurement time and location information to the cloud server. In this way, under the framework of the Internet of Things, the smart weight scale, the communication network device and the cloud server are combined with the above operation modes, and the intelligent weight management system of the invention can provide the user with convenient, instant and accurate weight measurement service. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1‧‧‧Smart Weight Management System
10‧‧‧Smart Weight Scale
11‧‧‧RF tags
12‧‧‧Communication network equipment
13‧‧‧Cloud Server
100‧‧‧Weighing module
101‧‧‧Microcontroller
102‧‧‧ display
103‧‧‧Reader
104‧‧‧Communication module
105‧‧‧ battery module
106‧‧‧Input interface
1000‧‧‧Weighing sensor
1001‧‧‧ low pass filter
1002‧‧‧Operational Amplifier
1003‧‧‧ analog to digital converter
1010, 1030, 1040‧‧‧Microprocessor
1011‧‧‧ Instant Clock
1012, 1032, 1042‧‧‧ power circuits
1013‧‧‧ memory
1031‧‧‧ analog signal interface
1033‧‧‧Induction coil
1041‧‧‧Wireless communication module
1044‧‧‧SIM interface
1045‧‧‧GPS module
1046‧‧‧USB interface
1047, 1043‧‧‧ antenna
1050‧‧‧Battery
1051, 1052‧‧ ‧ voltage converter
VCC, VCC2‧‧‧ supply voltage
CMD‧‧ directive
W_total, W_item, W_data‧‧‧ weight data
TAG_info‧‧‧ Label Information
30, 40‧‧‧ Process
300-317, 400-403‧‧‧ steps

FIG. 1 is a schematic diagram of a smart weight management system according to an embodiment of the present invention. Fig. 2 is a functional block diagram of the smart scale according to Fig. 1 of the embodiment of the invention. FIG. 3 is a schematic diagram of a process of an embodiment of the present invention. FIG. 4 is a schematic diagram of a process of an embodiment of the present invention.

40‧‧‧ Process

400, 401, 402, 403‧ ‧ steps

Claims (20)

A smart weight scale for a smart weight management system, comprising: a weighing module for generating a first weight data; a reader for reading a radio frequency identification tag of the smart weight management system The stored label information, wherein the label information indicates the weight of the item corresponding to the at least one person item and the at least one person item; a microcontroller coupled to the reader and the weighing module for using the first Weight data and the label information, calculating a second weight data; and a communication module coupled to the microcontroller and the reader for transmitting the second weight data to a cloud of the smart weight management system server. The smart weight scale of claim 1, wherein the first weight data includes an item weight corresponding to the at least one person item and the second weight data, and the second weight data is the user's weight. The smart scale according to claim 1, wherein the communication module comprises: a first microprocessor for encoding and packaging the second weight data, the label information and the location information to generate a current a first antenna; a wireless communication module coupled to the first antenna and the first microprocessor, configured to upload the current data to the cloud server through the first antenna; The identity module interface is coupled to the wireless communication module for providing a user identity identification of the smart weight meter; a second antenna for receiving a positioning signal from the satellite; and a global positioning system module, The second antenna and the first microprocessor are configured to generate a position information to the first microprocessor according to the positioning signal, and a universal serial bus interface coupled to the first micro The processor is configured to output the second weight data and the label information to the user device of the user. The smart weight scale of claim 3, wherein the microcontroller comprises: an instant clock for generating a measurement time; a memory for storing the tag information, the first weight data, the first And a second microprocessor coupled to the instant clock and the memory for calculating the second weight according to the tag information and the first weight data Data; wherein the first microprocessor encodes and encapsulates the measurement time to generate the current data. The smart scale according to claim 3, wherein when the communication module is not connected to the cloud server, the memory stores the current data as a first previous data; or when the communication module is connected When the memory server stores a second previous data, the communication module first uploads the second previous data, and then uploads the current data; or when the communication module is connected to the cloud server, When the memory does not store the second previous data, the communication module uploads the current data. The smart scale according to claim 1, wherein the reader is a radio frequency identification reader or a near field communication reader, the tag information is stored in a radio frequency identification tag, and the radio frequency identification tag is embedded in the One of the user's items or a wearable device. The smart scale according to claim 1, wherein the tag information further indicates a user identity, and the user identity corresponds to a personal account of the smart weight management system. The smart weight scale of claim 1, further comprising: a display coupled to the microcontroller for displaying the first weight data or the second weight data; an input interface coupled to the micro control The device is configured to generate an instruction to the microcontroller to indicate that the display displays the first weight data or the second weight data; and a battery module coupled to the weighing module, the reader, The microcontroller and the communication module are configured to provide a first supply voltage to the weighing module, the reader and the microcontroller, and provide a second supply voltage to the communication module. A method for measuring body weight includes: generating, by a weight module, a first weight when a user wears at least one person item; reading a label information through a reader, wherein the label information indicates a user identity and a weight of the item corresponding to each of the at least one person item; and comparing, by a microcontroller, a difference between the sum of the first weight and the weight of the item respectively corresponding to each of the at least one person item To calculate a second weight. The method of claim 9, wherein the first weight data comprises an item weight corresponding to the at least one person item and the second weight data, and the second weight information is the user's weight. The method of claim 9, wherein the reader is a radio frequency identification reader or a near field communication reader, the tag information is stored in a radio frequency identification tag, and the radio frequency identification tag is embedded in the user One person's item or one wearable device. An intelligent weight management system includes: a cloud server; a communication network device; at least one radio frequency identification tag, storing a tag information, wherein the tag information indicates an object weight corresponding to the at least one person item and the at least one person item respectively; A smart scale meter for providing a weight measurement service, wherein the smart scale includes a microcontroller and a memory for storing a code to instruct the microcontroller to perform a process for supply The weight measuring service includes the following steps: reading a first weight data through a weighing module; reading the label information from the at least one RFID tag through a reader; according to the label information and the The first weight data is calculated by calculating a second weight data, wherein the second weight data is the weight of the user; and the label information and the second weight data are encoded and packaged by a communication module to generate a current data. And connecting to the cloud server through the communication module to upload the current data to the cloud server Device. The smart weight management system of claim 12, wherein the first weight data comprises an item weight corresponding to the at least one person item and the second weight data, and the second weight data is the user's weight. The smart weight management system of claim 12, wherein the reader is a radio frequency identification reader or a near field communication reader, the tag information is stored in a radio frequency identification tag, and the radio frequency identification tag is embedded in One of the user's items or a wearable device. The smart weight management system of claim 12, wherein the process further comprises: determining whether the tag information is valid; and when the tag information is valid, calculating the second weight data according to the tag information and the first weight data Or when the label information is invalid, the first weight data is displayed through a display. The smart weight management system of claim 15, wherein when the tag information is valid, the process further includes: receiving an instruction through an input interface, determining whether the second weight data is displayed on the display; and when the instruction When the second weight data is to be displayed, the second weight data is displayed through the display; or when the instruction indicates that the second weight data is not required to be displayed, the label information and the second weight data are transmitted to the communication module group. The smart weight management system of claim 12, wherein the process further comprises: determining whether the communication module is connected to the cloud server; and transmitting the memory when the communication module is not connected to the cloud server The current data is stored as a first previous data; or when the communication module is connected to the cloud server, and the memory stores a second previous data, the second previous And uploading the current data; or uploading the current data through the communication module when the communication module is connected to the cloud server and the memory does not store the second previous data. The smart weight management system of claim 12, wherein the communication module encodes and encapsulates the tag information, the second weight data, a measurement time, and a positioning information to generate the current data. The smart weight management system of claim 18, wherein the measurement time is read by an instant clock, and the positioning information is generated by a global positioning module. The smart weight management system of claim 12, wherein the tag information further indicates a user identity, and the user identity corresponds to a personal account of the smart weight management system.