An electromyography bracelet capable of realizing multiple interactive functions

Abstract

The myoelectricity bracelet of the application comprises a mainboard, the lateral ends of the mainboard are connected with flexible circuit boards, the flexible circuit boards are wrapped with silica gel shells, and the silica gel shells are connected with human skin through myoelectricity electrodes; the top of the mainboard is provided with a mouse sensor and a magnetic interface; the mainboard is integrated with a lithium battery, a Bluetooth microcontroller, a battery monitoring IC, a linear voltage regulator, a signal amplification circuit and an inertial sensor; the Bluetooth microcontroller collects data of the mouse sensor, the inertial sensor and the myoelectricity electrodes and converts the data into control signals which are sent to an upper computer, thereby controlling external devices, the myoelectricity signals generated by finger tapping replace the clicking of the left and right keys of the mouse, and the integrated device has the lightness of the myoelectricity bracelet and the high-precision requirement of the mouse sensor.

Description

Technical Field

[0001] This utility model belongs to the field of computer and information technology, and specifically relates to a myoelectric bracelet that realizes multiple interactive functions. Background Technology

[0002] Electromyography (EMG) signals are bioelectrical signals generated during muscle contraction, and their amplitude, frequency, and other characteristics are directly related to the state of muscle activity. In recent years, with the development of flexible electronics, low-noise amplifiers, and pattern recognition algorithms, human-computer interaction technology based on surface electromyography (sEMG) signals has become a research hotspot in the field of smart wearable devices. As a typical form of wearable device, EMG wristbands collect sEMG signals through electrodes attached to the skin of the forearm or upper arm. Combined with machine learning algorithms, they analyze hand gesture intentions (such as grasping, releasing, and finger flexion and extension), and have been widely applied in rehabilitation medicine (assisting paralyzed patients in grasping movements), virtual reality / augmented reality interaction (replacing controllers to achieve natural gesture control), and intelligent prosthetic limb control (achieving multi-freedom prosthetic limb movement).

[0003] With the fast pace of modern life and the increasing complexity of interactive scenarios (such as light office work when working outside, or interaction using AR / MR glasses), single-modal interactive devices can no longer meet users' needs for "naturalness," "accuracy," and "multi-dimensional feedback."

[0004] Currently, some tentative integration solutions have emerged in the industry: for example, combining electromyography (EMG) signals with an inertial measurement unit (IMU). However, interaction methods implemented through IMUs still require recalibration during use. Low sensitivity leads to larger amplitudes of user body movement, while high sensitivity reduces the robustness of interaction when integrated with EMG signals. In contrast, mouse displacement sensor technology is mature, conforms to modern user habits, and is very suitable as a breakthrough point. Summary of the Invention

[0005] To address the aforementioned issues, this invention proposes a myoelectric bracelet that enables multiple interactive functions. The concept involves retaining the gesture control mode of existing myoelectric bracelets while adding a mouse sensor that fits snugly against a desktop. The myoelectric signals generated by finger taps replace the left and right mouse button clicks, allowing the integrated device to maintain the portability of a myoelectric bracelet while meeting the high-precision requirements of a mouse sensor.

[0006] The myoelectric bracelet that enables multiple interactive functions includes a main board 8, with horizontal flexible circuit boards 9 connected to the two sides of the main board 8; the surface of the flexible circuit board 9 is covered with a silicone shell 5, and the bottom of the main board 8 and the flexible circuit board are connected to the external human skin through myoelectric electrodes 1; the top of the main board is equipped with a mouse sensor 6 that can be placed close to the desktop; the main board is equipped with a magnetic interface 2.

[0007] The motherboard integrates a lithium battery 81, a battery monitoring IC 82, a Bluetooth microcontroller 84, an inertial sensor 86, a mouse sensor 6, a linear regulator 83, and a signal amplification circuit 85. The lithium battery 81 can be connected to an external charging device via a magnetic interface 2. The lithium battery 81 supplies power to the battery monitoring IC 82 and the linear regulator 83. The linear regulator 83 provides a stable voltage to the inertial sensor 86, the mouse sensor 6, the signal amplification circuit 85, and the Bluetooth microcontroller 84. The Bluetooth microcontroller 84 collects battery status data from the battery monitoring IC 82, roll angle and elevation angle data from the inertial sensor 86, mouse displacement data from the mouse sensor 6, and electromyographic signal data from the electromyographic electrodes 1 through the signal amplification circuit 85. The Bluetooth microcontroller 84 processes the collected data into control signals and transmits them to an external host computer.

[0008] More specifically, a spring bar protrusion 3 is connected to the silicone shell 5 on one side of the motherboard 8, and a spring bar concave end 4 is connected to the silicone shell 5 on the other side of the motherboard 8; the spring bar protrusion 3 and the spring bar concave end 4 can be engaged with each other, so that the silicone shell 5 is connected into a ring structure.

[0009] More specifically, the motherboard 8 has a device indicator light 7 on its top.

[0010] The working modes of the myoelectric bracelet that enable multiple interactive functions include mouse mode and gesture mode:

[0011] The steps in mouse mode include:

[0012] 1. Users wearing myoelectric wristbands should place the mouse sensor on the desktop and move the myoelectric wristband, using the index and middle fingers to tap instead of clicking the left and right mouse buttons;

[0013] 2. Mouse sensor 6 collects mouse displacement signals, and electromyography electrode 1 collects electromyography signals generated by the tapping of the index and middle fingers;

[0014] 3. The Bluetooth microcontroller processes the mouse displacement signal and electromyography signal into control signals and transmits them to the host computer.

[0015] The steps for gesture mode include:

[0016] 1. When a user wearing a myoelectric wristband moves their forearm up, down, left, and right, the inertial sensor collects the roll angle and elevation angle data of the myoelectric wristband, and the myoelectric electrode 1 collects the myoelectric signals generated by the user's gestures.

[0017] 2. The Bluetooth microcontroller 84 generates control signals based on electromyographic signals and roll angle and elevation angle data, and transmits them to the host computer.

[0018] The beneficial effects of this invention include: by incorporating a mouse sensor and IMU into the electromyography (EMG) wristband, traditional interaction methods can be achieved, allowing users to simulate mouse operation on a PC using the mouse sensor and EMG gesture recognition. Furthermore, interaction with AR glasses is possible during movement via IMU and EMG gesture recognition; the integrated device combines the portability of an EMG wristband with the high precision requirements of a mouse sensor. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a myoelectric wristband that realizes multiple interactive functions according to this utility model.

[0020] Figure 2 This is a top view of a myoelectric bracelet that realizes multiple interactive functions according to this utility model.

[0021] Figure 3 This is a step-by-step diagram of the internal components of a myoelectric bracelet that realizes multiple interactive functions according to this utility model.

[0022] Figure 4 This is a flowchart of the internal component control of a myoelectric bracelet that realizes multiple interactive functions according to this utility model. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0030] according to Figure 1 and Figure 2 The myoelectric bracelet that enables multiple interactive functions includes a main board 8, with horizontal flexible circuits 9 connected to the horizontal sides of the main board 8; the surface of the flexible circuit board 9 is covered with a silicone shell 5; the bottom of the main board 8 and the flexible circuit board are connected to the external human skin through myoelectric electrodes 1; the top of the main board is equipped with a mouse sensor 6 that can be placed close to the desktop; the main board is equipped with a magnetic interface 2.

[0031] according to Figure 3 and Figure 4The motherboard integrates a lithium battery 81, a battery monitoring IC 82, a Bluetooth microcontroller 84, an inertial sensor 86, a mouse sensor 6, a linear regulator 83, and a signal amplification circuit 85. The lithium battery 81 can be connected to an external charging device via a magnetic interface 2. The lithium battery 81 supplies power to the battery monitoring IC 82 and the linear regulator 83. The linear regulator 83 provides a stable voltage to the inertial sensor 86, the mouse sensor 6, the signal amplification circuit 85, and the Bluetooth microcontroller 84. The Bluetooth microcontroller 84 collects battery status data from the battery monitoring IC 82, roll angle and elevation angle data from the inertial sensor 86, mouse displacement data from the mouse sensor 6, and electromyographic signal data from the electromyographic electrode 1 through the signal amplification circuit 85. The Bluetooth microcontroller 84 processes the collected data into control signals and transmits them to an external host computer.

[0032] In some embodiments, a spring bar protrusion 3 is connected to the silicone shell 5 on one side of the motherboard 8, and a spring bar concave end 4 is connected to the silicone shell 5 on the other side of the motherboard 8; the spring bar protrusion 3 and the spring bar concave end 4 can engage with each other, so that the silicone shell 5 is connected into a ring structure.

[0033] In some embodiments, the motherboard 8 has a device indicator light 7 on its top.

[0034] The working modes of the myoelectric bracelet that enable multiple interactive functions include mouse mode and gesture mode:

[0035] The steps in mouse mode include:

[0036] 4. Users wearing myoelectric wristbands should place the mouse sensor on the desktop and move the myoelectric wristband, using the index and middle fingers to tap instead of clicking the left and right mouse buttons;

[0037] 5. Mouse sensor 6 collects mouse displacement signals, and electromyography electrode 1 collects electromyography signals generated by the tapping of the index and middle fingers;

[0038] 6. The Bluetooth microcontroller processes the mouse displacement signal and electromyography signal into control signals and transmits them to the host computer.

[0039] The steps for gesture mode include:

[0040] 3. When the user wearing the electromyography (EMG) bracelet moves their forearm up, down, left, and right, the inertial sensor collects the roll angle and elevation angle data of the EMG bracelet, and the EMG electrode 1 collects the EMG signals generated by the user's gestures.

[0041] 4. The Bluetooth microcontroller 84 generates control signals based on electromyographic signals and roll angle and elevation angle data, and transmits them to the host computer.

[0042] The above description of this utility model is only a part of the preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An electromyographic bracelet for implementing multiple interactive functions, characterized in that it comprises: Includes a motherboard (8), with horizontal flexible circuit boards (9) connected to the horizontal sides of the motherboard (8); the surface of the flexible circuit board (9) is covered with a silicone shell (5), and the bottom of the motherboard (8) and the flexible circuit board are connected to the external human skin through electromyography electrodes (1); a mouse sensor (6) that can be placed close to the desktop is provided on the top of the motherboard; a magnetic interface (2) is provided on the motherboard. The motherboard integrates a lithium battery (81), a battery monitoring IC (82), a Bluetooth microcontroller (84), an inertial sensor (86), a mouse sensor (6), a linear regulator (83), and a signal amplification circuit (85). The lithium battery (81) can be connected to an external charging device via a magnetic interface (2). The lithium battery (81) supplies power to the battery monitoring IC (82) and the linear regulator (83). The linear regulator (83) provides a stable voltage to the inertial sensor (86), the mouse sensor (6), the signal amplification circuit (85), and the Bluetooth microcontroller (84). The Bluetooth microcontroller (84) collects battery status data from the battery monitoring IC (82), roll angle and elevation angle data from the inertial sensor (86), mouse displacement data from the mouse sensor (6), and electromyographic signal data from the electromyographic electrode (1) through the signal amplification circuit (85). The Bluetooth microcontroller (84) processes the collected data into control signals and transmits them to an external host computer.

2. The myoelectric bracelet of claim 1, wherein: A spring bar protrusion (3) is connected to the silicone shell (5) on one side of the motherboard (8), and a spring bar concave end (4) is connected to the silicone shell (5) on the other side of the motherboard (8); the spring bar protrusion (3) and the spring bar concave end (4) can be engaged with each other, so that the silicone shell (5) is connected into a ring structure.

3. The myoelectric bracelet of claim 1, wherein: The motherboard (8) has a device indicator light (7) on the top.

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