Body fat scale with motor reminding function

Abstract

The utility model discloses a body fat scale with a motor reminding function, and the scale comprises a sensor module which is used for detecting the weight, body fat and heart rate data of a user; the measuring circuit is connected with the sensor module, and the measuring circuit is used for converting data acquired by the sensor module into digital signals; the central control module is connected with the measuring circuit, and the central control module is used for receiving and calculating the digital signal transmitted by the measuring circuit; the power supply is used for providing electric energy for the body fat scale; the vibration motor is used for vibration feedback; and the motor driving circuit is connected with the vibration motor and the central control module, and the motor driving circuit is used for driving the vibration motor.

Description

Technical Field

[0001] The utility model relates to the technical field of body fat scales, in particular to a body fat scale with a motor reminder function. Background Art

[0002] With the development of the economy, more and more people pay attention to their physical health, and body fat scales are a relatively economical and affordable testing equipment.

[0003] The existing body fat scales usually interact with users visually, which is relatively simple and does not provide a strong user experience. For example, if there is an abnormal measurement during the measurement process, the user needs to lower his head to check the status to find it, which is a poor user experience. And when an abnormality occurs, the user presses and holds the reset button on the back of the scale to reset the scale. The user needs to turn the scale over and observe the display screen to confirm whether the scale has been reset successfully, which is a poor experience. Summary of the invention

[0004] The invention object of the utility model is to provide a body fat scale with a motor reminder function, which performs body sensory feedback through a vibration motor to improve the user's measurement experience.

[0005] The technical solutions adopted by the utility model to solve the above technical problems are as follows:

[0006] A body fat scale with a motor reminder function, comprising:

[0007] Sensor module, used to detect the user's weight, body fat and heart rate data;

[0008] A measuring circuit connected to the sensor module, the measuring circuit is used to convert the data collected by the sensor module into a digital signal;

[0009] A central control module is connected to the measuring circuit, and is used to receive and calculate the digital signal transmitted by the measuring circuit;

[0010] A power supply, used to provide electrical energy to the body fat scale;

[0011] Vibration motor for vibration feedback;

[0012] The motor driving circuit is connected to the vibration motor and the central control module, and the motor driving circuit is used to drive the vibration motor.

[0013] Further, the motor driving circuit includes: an NMOS tube, a first bias resistor and a second bias resistor;

[0014] The gate of the NMOS tube is connected to the control pin of the central control module and the ground through the first bias resistor and the second bias resistor respectively;

[0015] The source of the NMOS tube is grounded;

[0016] The drain of the NMOS tube is connected to the power supply end of the vibration motor.

[0017] Furthermore, the motor driving circuit also includes a diode, which is connected to the drain of the NMOS tube and the power supply terminal, and the diode is connected in parallel with the motor.

[0018] Furthermore, the motor driving circuit also includes a filter capacitor, which is connected to the drain of the NMOS tube and the power supply terminal, and the filter capacitor is connected in parallel with the motor.

[0019] Furthermore, the sensor module includes a weighing sensor and an electrode.

[0020] Furthermore, the number of the weighing sensors is 4, and the number of the electrodes is 8.

[0021] Furthermore, it also includes a WIFI module, and the WIFI module is connected to a power supply.

[0022] The technical solution of the utility model has the following advantages over the prior art:

[0023] 1. With motor reminder function, the body sensory feedback function is realized by adding a vibration motor and a motor drive circuit to the body fat scale. When a specific situation or abnormality occurs, the vibration motor can remind the user through vibration, enhancing the user's perception and feedback ability.

[0024] 2. Improve user experience. The interaction mode of traditional body fat scales is relatively simple, and users need to judge the measurement status and operation results through visual observation. The motor reminder function in this technical solution can directly convey information to users through vibration, providing more intuitive and real-time feedback, and improving user experience.

[0025] 3. Convenient reset operation. By adding a motor drive circuit to the body fat scale, the user can long press the reset button and use the vibration feedback provided by the motor to determine whether the scale is successfully reset. There is no need to flip the scale to observe the display screen, which simplifies the operation steps and improves user convenience.

[0026] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures particularly pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is described in detail below in conjunction with the accompanying drawings to make the above advantages of the present invention more clear.

[0028] Figure 1This is a connection block diagram of a body fat scale with a motor reminder function in the utility model;

[0029] Figure 2 This is a schematic diagram of a motor drive circuit of a body fat scale with a motor reminder function of the utility model;

[0030] Figure 3 This is a flow chart of starting the vibration motor of a body fat scale with a motor reminder function in the utility model;

[0031] Figure 4 This is a restart logic block diagram of a body fat scale with a motor reminder function in the utility model;

[0032] Figure 5 The utility model discloses an abnormal feedback logic block diagram of a body fat scale with a motor reminder function. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-5 As shown, a body fat scale with a motor reminder function includes:

[0037] Sensor module, used to detect the user's weight, body fat and heart rate data;

[0038] A measuring circuit connected to the sensor module, the measuring circuit is used to convert the data collected by the sensor module into a digital signal;

[0039] A central control module is connected to the measuring circuit, and is used to receive and calculate the digital signal transmitted by the measuring circuit;

[0040] A power supply, used to provide electrical energy to the body fat scale;

[0041] Vibration motor for vibration feedback;

[0042] The motor driving circuit is connected to the vibration motor and the central control module, and the motor driving circuit is used to drive the vibration motor.

[0043] Body fat scales may have a variety of abnormalities during the measurement process, which may be caused by hardware, software, environment and other factors. Possible abnormalities and their causes: inaccurate measurement or large changes, poor electrode contact, unstable scale surface, changes in user's physical condition, environmental interference, software problems, low battery, hardware failure, improper use: incorrect use, such as incorrect standing posture, may affect the measurement results.

[0044] When the central control module receives and calculates the digital signal transmitted by the measurement circuit, if there is an abnormality in the calculation result or the acquisition of the digital signal, it needs to be fed back to the user for re-measurement. By introducing the motor reminder function and providing feedback through the vibration motor, the user experience of the body fat scale is improved. The sensor module is used to detect the user's weight, body fat and heart rate data. The measurement circuit converts the collected data into a digital signal. The central control module receives and calculates the transmitted digital signal. The motor drive circuit connects the vibration motor and the central control module to drive the vibration motor to realize the vibration feedback function. Traditional body fat scales usually only interact with users visually. Users need to observe the display screen or indicator light to understand the measurement status or abnormal conditions. The present technical solution directly transmits information to the user through the vibration feedback of the motor, allowing the user to perceive the status of the scale more intuitively, thereby improving the user experience.

[0045] like Figure 2 As shown, in this embodiment, the motor drive circuit includes: an NMOS tube Q3, a first bias resistor R13 and a second bias resistor R8; the gate of the NMOS tube Q3 is connected to the control pin and the ground of the central control module through the first bias resistor R13 and the second bias resistor R8 respectively; the source of the NMOS tube Q3 is grounded; the drain of the NMOS tube Q3 is connected to the power supply end of the vibration motor.

[0046] In the initial state, the G pin of the NMOS tube Q3 is pulled low, and the NMOS tube Q3 is not turned on, which means that there is no conductive circuit path between the gate and source of the NMOS tube Q3, and the motor cannot form a loop. Therefore, in this case, the motor will not vibrate.

[0047] When the conditions for triggering motor vibration are met, the central control module pulls up the control pin EN_MOTOR. This will cause a connected circuit path to be formed between the gate and source of the NMOS tube Q3. When the NMOS tube Q3 is turned on, current can flow from the power supply through the drain of the NMOS tube Q3 to the power supply end of the motor, thus forming a motor loop.

[0048] After the motor forms a loop, current starts to flow through the motor. According to the working principle of the motor, the current generates a magnetic field through the motor coil, causing the motor to vibrate. Therefore, when the NMOS tube Q3 is turned on, the motor starts to vibrate.

[0049] By using the motor drive circuit composed of NMOS tube Q3, the first bias resistor R13 and the second bias resistor R8, the vibration motor can be effectively driven to achieve accurate and efficient vibration feedback. The motor drive circuit adopts a simple structure, which simplifies the circuit design and reduces the use and complexity of components. The NMOS tube Q3 in the motor drive circuit acts as a switch, and the working state of the motor can be controlled by controlling its gate voltage. When the gate voltage is higher than the threshold voltage, the NMOS tube Q3 is turned on, connecting the source and the drain, and realizing the circuit closure at the motor power supply end.

[0050] The first bias resistor R13 and the second bias resistor R8: These two bias resistors are used to connect the control pin of the central control module to the gate of the NMOS tube Q3 and connect the gate pin to the ground. Their function is to provide appropriate voltage bias to ensure the normal operation of the NMOS tube Q3.

[0051] This technical solution controls the working state of the motor through the motor drive circuit composed of NMOS tube Q3, the first bias resistor R13 and the second bias resistor R8. When the control pin of the central control module provides an appropriate voltage, the NMOS tube Q3 is turned on, connecting the power supply end of the motor to the drain of the drive circuit, thereby realizing the vibration feedback function of the motor. This motor drive circuit has a simple and efficient structure and can be used to realize vibration feedback in body fat scales.

[0052] In this embodiment, the motor drive circuit further includes a diode D136, which is connected to the drain of the NMOS tube Q3 and the power supply terminal, and is connected in parallel with the motor. The diode D136 is connected between the drain of the NMOS tube Q3 and the power supply terminal, and is connected in parallel with the motor. This design can provide a reverse current protection function to prevent the reverse current generated by the motor when it stops working from damaging the NMOS tube Q3.

[0053] In this embodiment, the motor drive circuit also includes a filter capacitor C7, which is connected to the drain of the NMOS tube Q3 and the power supply terminal, and the filter capacitor C7 is connected in parallel with the motor. It is connected between the drain of the NMOS tube Q3 and the power supply terminal, and is connected in parallel with the motor. The filter capacitor C7 has a high impedance characteristic, and can smooth the voltage by storing charge, thereby reducing the noise and fluctuations at the power supply end. The filter capacitor C7 can filter out high-frequency noise and fluctuations in the power supply by storing charge and smoothing the voltage. This can reduce the impact of power supply noise on the motor and NMOS tube Q3 and improve the stability of the system. The filter capacitor C7 can reduce electromagnetic interference (EMI). The motor will generate high-frequency noise when working, and these noises may cause electromagnetic interference to the surrounding circuits. By adding a filter capacitor C7 to the motor drive circuit, the propagation and interference of these noises can be reduced, and the anti-interference ability of the entire system can be improved.

[0054] In this implementation case, the sensor module includes a weighing sensor and an electrode. The sensor module includes a weighing sensor and an electrode, which can realize multiple measurement functions. The weighing sensor is used to measure the user's weight, while the electrode is used to measure body fat and heart rate data. The combination of these two sensors can provide more comprehensive physical health information. The weighing sensor usually adopts the principle of strain gauge or pressure sensor. When the user stands on the body fat scale, the applied force causes the sensor to produce a slight deformation or pressure change, which is then converted into an electrical signal for measurement. The electrode usually adopts the principle of bioelectrical impedance measurement to infer the body fat content by measuring the change in the impedance of the human body to the current. The electrode is usually implemented in the form of a handle or foot pedal that contacts the human body. The sensor module in this implementation case includes a weighing sensor and an electrode, which can provide multiple measurement functions, such as weight, body fat and heart rate data. The weighing sensor measures weight through the principle of strain gauge or pressure sensor, and the electrode measures body fat and heart rate data through the principle of bioelectrical impedance measurement. Such a design can achieve a comprehensive measurement of the user's physical health and provide accurate data.

[0055] In this implementation case, the number of weighing sensors is 4 and the number of electrodes is 8. By using multiple weighing sensors, the sensors can be evenly distributed in different areas of the body fat scale, thereby improving the stability and accuracy of weighing. Multiple sensors can share the load evenly and reduce the error caused by uneven force. By using 8 electrodes, more measurement data can be provided to analyze the user's body fat content. The increase in electrodes can enhance the body fat scale's analysis of body composition and provide more detailed data, thereby improving the user's understanding of their physical health.

[0056] This implementation case also includes a WIFI module, which is connected to a power supply. By adding a WIFI module, the body fat scale can realize wireless communication function, enabling users to transmit and interact with other devices wirelessly. This can improve the convenience and connectivity of the body fat scale. The WIFI module can connect the body fat scale to other devices (such as smart phones, computers, etc.) and transmit the measurement data to these devices. Users can receive and manage measurement data through mobile phone apps or computer software to achieve data sharing and tracking. Make the body fat scale more intelligent and interconnected, and meet users' needs for data sharing and tracking.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A body fat scale with a motor reminder function, characterized in that: include: Sensor module, used to detect the user's weight, body fat and heart rate data; A measuring circuit connected to the sensor module, the measuring circuit is used to convert the data collected by the sensor module into a digital signal; A central control module is connected to the measuring circuit, and is used to receive and calculate the digital signal transmitted by the measuring circuit; A power supply, used to provide electrical energy to the body fat scale; Vibration motor for vibration feedback; The motor driving circuit is connected to the vibration motor and the central control module, and the motor driving circuit is used to drive the vibration motor.

2. The body fat scale with motor reminder function according to claim 1, characterized in that: The motor driving circuit includes: an NMOS tube, a first bias resistor and a second bias resistor; The gate of the NMOS tube is connected to the control pin of the central control module and the ground through the first bias resistor and the second bias resistor respectively; The source of the NMOS tube is grounded; The drain of the NMOS tube is connected to the power supply end of the vibration motor.

3. The body fat scale with motor reminder function according to claim 1, characterized in that: The motor driving circuit also includes a diode, which is connected to the drain of the NMOS tube and the power supply terminal, and is connected in parallel with the motor.

4. The body fat scale with motor reminder function according to claim 1, characterized in that: The motor driving circuit also includes a filter capacitor, which is connected to the drain of the NMOS tube and the power supply terminal, and is connected in parallel with the motor.

5. The body fat scale with motor reminder function according to claim 1, characterized in that: The sensor module includes a weighing sensor and electrodes.

6. The body fat scale with motor reminder function according to claim 5, characterized in that: The number of the weighing sensors is 4, and the number of the electrodes is 8.

7. The body fat scale with motor reminder function according to claim 1, characterized in that: It also includes a WIFI module, which is connected to a power source.

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