Signal acquisition device

Abstract

The embodiment of the invention relates to a signal acquisition device, which comprises a wearable body, the wearable body comprises a plurality of electrodes in contact with the skin of a user, the plurality of electrodes comprise a first electrode and a second electrode, and the first electrode and the second electrode are configured to acquire electromyographic signals of target muscles of the user, the first electrodes and the second electrodes are arranged at intervals in the muscle fiber direction of the target muscle; and a base body configured to carry the plurality of electrodes and enable the plurality of electrodes to be located at the target muscle; wherein the base body comprises base body yarns, the plurality of electrodes comprise conductive yarns, and the base body and the plurality of electrodes are integrally woven.

Description

Technical Field

[0001] This manual relates to the field of signal acquisition, and in particular to a signal acquisition device. Background Technology

[0002] Monitoring running can be achieved using an electromyography (EMG) calf sleeve. This sleeve is typically positioned along the muscle fibers to collect and monitor EMG signals from the leg muscles. However, current EMG calf sleeves are uncomfortable to wear; due to the electrode structure, they have poor local elasticity and are cumbersome to put on.

[0003] Therefore, there is a need to provide a signal acquisition device that makes the wearable body flexible in various parts, easy to wear and comfortable to wear, and suitable for a wide range of people. Summary of the Invention

[0004] One embodiment of this specification provides a signal acquisition device, including a wearable body. The wearable body includes: a plurality of electrodes in contact with a user's skin, the plurality of electrodes including a first electrode and a second electrode, the first electrode and the second electrode being configured to acquire electromyographic signals of a target muscle of the user, the first electrode and the second electrode being arranged at intervals along the muscle fiber direction of the target muscle; and a substrate configured to support the plurality of electrodes and position the plurality of electrodes at the target muscle; wherein the substrate includes substrate yarn, the plurality of electrodes include conductive yarn, and the substrate and the plurality of electrodes are integrally woven together. Through the integrated woven structure of the substrate and the plurality of electrodes, the signal acquisition device can have greater overall elasticity, be easier to wear, and provide higher wearing comfort. Furthermore, it can greatly simplify the manufacturing process of the substrate and electrodes, realize automation of production, and bring numerous advantages such as mass production, controllable quality, and excellent consistency. Meanwhile, through integrated weaving, the thickness and / or yarn density of different areas of the wearable body can be adjusted, thereby adjusting the elasticity of various parts of the wearable body, so that the wearable body can fit well with the user's skin when worn, and at the same time, the pressure of the wearable body on the user's body is appropriate when worn, thus improving the wearing comfort of the wearable body.

[0005] In some embodiments, the wearable body further includes a waterproof layer comprising waterproof insulating yarn, which is integrally woven with the substrate and the plurality of electrodes. The waterproof layer can prevent abnormal conductivity between the electrodes due to moisture, thereby avoiding the wearable body from affecting the accuracy of electromyography signal acquisition due to moisture. The integrated weaving improves the smoothness of the wearable body surface, simplifies the processing flow, enables automated production, and offers advantages such as ease of mass production, controllable quality, and excellent consistency.

[0006] In some embodiments, the waterproof layer and the substrate are woven together in a coplanar and parallel manner, and the substrate is connected to the outer periphery of the waterproof layer, thereby making the overall feel of the wearable body flat and dense, facilitating the close fit between the wearable body and the human skin, and facilitating the collection of electromyographic signals by the electrodes.

[0007] In some embodiments, the waterproof layer is woven into the inner surface of the substrate facing the user's skin. The waterproof layer and the substrate are stacked together in the direction facing the user's skin, allowing the waterproof layer to protrude from the substrate. This increases the vertical distance between the electrodes and the substrate, effectively preventing abnormal conductivity between different electrodes caused by a wet substrate.

[0008] In some embodiments, the plurality of electrodes are braided and connected to the side of the waterproof layer opposite to the substrate. By braiding and connecting each electrode in a stacked manner to the side of the waterproof layer opposite to the substrate (i.e., the side facing the user's skin), each electrode protrudes from its corresponding waterproof layer setting. When the substrate and waterproof layer come into contact with the skin, the electrodes make closer contact with the skin, enhancing signal acquisition.

[0009] In some embodiments, there are multiple waterproof layers, and each of the multiple electrodes is connected to the inner peripheral side of a corresponding waterproof layer. The waterproof layer isolates the corresponding electrodes, preventing abnormal conductivity between the electrodes. The waterproof layer and the electrodes are woven together in a coplanar parallel manner, which can effectively increase the thickness of the electrodes while reducing the contact pressure between the electrodes and the user's skin, thus improving the wearing comfort of the signal acquisition device.

[0010] In some embodiments, the surface of the waterproof layer is woven into an uneven shape; or, the surfaces of the plurality of electrodes are woven into an uneven shape. The uneven shape on the surface of the waterproof layer effectively increases its elasticity, ensuring that the waterproof effect is not weakened when stretched, thus guaranteeing the waterproof layer's liquid-blocking effect. The uneven shape on the electrode surface increases the effective area of ​​the electrode region, increasing the contact area between the electrode and the skin when the electrode is stretched, improving friction with the skin, and increasing the signal-to-noise ratio.

[0011] In some embodiments, when worn, the substrate includes a proximal end close to the user's heart and a distal end far from the user's heart, with the distal end having greater elasticity than the proximal end. By making the distal end of the substrate more elastic, the pressure exerted on the body by the distal end is reduced, facilitating blood return to the heart and improving the wearing comfort and safety of the signal acquisition device.

[0012] In some embodiments, the thickness of the distal end is greater than the thickness of the proximal end, so that the elasticity of the distal end is greater than that of the proximal end.

[0013] In some embodiments, the density of the matrix yarn at the distal end is greater than the density of the matrix yarn at the proximal end, so that the elasticity at the distal end is greater than that at the proximal end.

[0014] In some embodiments, each of the plurality of electrodes includes a first region and a second region. The first region is connected to the substrate through the second region. The first region contacts the user's skin to collect electrical signals, and the second region is electrically insulated from the user's skin. This eliminates the need for a separate waterproof layer, as the second region provides waterproof isolation between the first region and the substrate. This allows for the elimination of the need for waterproof yarns during the integrated weaving process of the wearable body, saving material costs and reducing processing difficulty.

[0015] In some embodiments, the first region protrudes beyond the second region in the direction toward the user's skin. When the substrate contacts the skin, the elasticity of the substrate allows the first region to make closer contact with the skin, enhancing signal acquisition.

[0016] In some embodiments, the conductive yarn in the second region is covered with a waterproof insulating film, giving the conductive yarn in the second region a waterproof and insulating effect.

[0017] In some embodiments, the conductive yarn is at least made of conductive fibers wound around elastic fibers; or, the conductive yarn is at least made of an elastic membrane covering the periphery of the conductive fibers. Through these arrangements, the conductive yarn can simultaneously possess conductivity and elasticity, improving the user's wearing experience while still being able to acquire electromyographic signals. The elastic conductive yarn design can improve the elasticity of the electrodes, enhance the wearing comfort of the signal acquisition device, and improve the signal-to-noise ratio and signal acquisition stability of the electromyographic signals acquired by the device.

[0018] In some embodiments, the substrate forms a leg sleeve that is elastically expandable and contractible along its radial direction, and the plurality of electrodes are used to collect electromyographic signals from the posterior side of the user's leg. The leg sleeve can be completely fitted onto the user's leg for easy and comfortable wear.

[0019] In some embodiments, the wearable body includes multiple straps connected to the substrate. The multiple straps are arranged at intervals along the direction of the muscle fibers. In the wearing state, the size of each of the multiple straps is individually adjustable so that the wearable body can better adapt to the user's body and ensure that the substrate can fit tightly to the user's skin so that the electrodes can collect electromyographic signals.

[0020] In some embodiments, the substrate includes an overlapping region that overlaps with the plurality of electrodes in a direction perpendicular to the direction of the muscle fibers, and a non-overlapping region that is offset from the plurality of electrodes in a direction perpendicular to the direction of the muscle fibers. Both the overlapping and non-overlapping regions extend in a direction perpendicular to the direction of the muscle fibers and are distributed adjacent to each other in the direction of the muscle fibers. The elasticity of the overlapping region is greater than that of the non-overlapping region. This configuration compensates for the reduced elasticity caused by the electrodes and the waterproof layer, allowing the wearer to fit better against the wearing area.

[0021] In some embodiments, the substrate is fixed with a first metal component and a second metal component. The first metal component is electrically connected to the first electrode, and the second metal component is electrically connected to the second electrode. The first and second metal components are magnetically detachably connected to a processing circuit to enable data transmission between the first and second electrodes and the processing circuit. The metal components can serve as interface parts for signal transmission; the electrical signals collected by the electrodes are transmitted to the processing circuit through the corresponding metal components for processing.

[0022] In some embodiments, a first fixing member and a second fixing member are fixedly provided on the substrate. The first metal member is connected to the first fixing member, and the second metal member is connected to the second fixing member. A connecting member is provided between the first fixing member and the second fixing member. The provision of the first fixing member and the second fixing member can strengthen the connection between the first metal member, the second metal member and the substrate. By providing a connecting member between the first fixing member and the second fixing member, the distance between the first fixing member and the second fixing member can be fixed, which also fixes the distance between the first metal member and the second metal member, thereby preventing damage to the processing circuit. Attached Figure Description

[0023] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0024] Figure 1 This is a schematic diagram of the signal acquisition device shown in some embodiments of this specification;

[0025] Figure 2 These are schematic diagrams of waterproof layers shown in some embodiments of this specification;

[0026] Figure 3 This is a partial schematic diagram of a wearable body according to some embodiments of this specification;

[0027] Figure 4These are schematic diagrams illustrating different weaving methods according to some embodiments of this specification;

[0028] Figure 5 This is a partial schematic diagram of a wearable body according to some embodiments of this specification;

[0029] Figure 6 This is a schematic diagram of the signal acquisition device according to other embodiments shown in this specification;

[0030] Figure 7 This is a structural schematic diagram of the fastener shown in some embodiments of this specification. Detailed Implementation

[0031] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0032] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one way to distinguish different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0033] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0034] In the description of this specification, it should be understood that the terms "front" and "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this specification and simplifying the description, and do not 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 specification.

[0035] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this specification, unless otherwise expressly 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 or an electrical connection; 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0037] This specification provides a signal acquisition device through several embodiments. In some embodiments, the signal acquisition device includes a wearable body. The wearable body includes multiple electrodes that contact the user's skin. The multiple electrodes include a first electrode and a second electrode, configured to acquire electromyographic signals from a target muscle of the user. The first and second electrodes are arranged at intervals along the muscle fiber direction. The first and second electrodes can respectively acquire the potential of the skin surface at their respective locations, and the potential difference between the acquired potentials can be used to reflect the electromyographic signals of the target muscle. In some embodiments, the wearable body also includes a substrate that can support the multiple electrodes and position them at the target muscle. The substrate includes substrate yarn, and the multiple electrodes include conductive yarn. The substrate yarn and conductive yarn are woven together to achieve integrated weaving of the substrate and multiple electrodes. The embodiments of this specification, through the integrated weaving structure of the substrate and multiple electrodes, can make the signal acquisition device more flexible and easier to wear. Furthermore, it can greatly simplify the manufacturing process of the substrate and electrodes, achieve automated production, and bring numerous advantages such as mass production, controllable quality, and excellent consistency. Meanwhile, by selecting materials for the base yarn and conductive yarn, as well as designing the weaving structure during the integrated weaving process, different elasticities can be achieved in different parts of the wearable body, thereby enabling pressure control of the user's skin at various points on the wearable body.

[0038] Figure 1 This is a schematic diagram of the structure of a signal acquisition device according to some embodiments of this specification. For example... Figure 1 As shown, the signal acquisition device 100 may include a wearable body.

[0039] The signal acquisition device 100 can acquire electromyographic (EMG) signals from a user's muscles. For example, the signal acquisition device 100 can acquire EMG signals from a user's muscles using multiple electrodes attached to the skin. In some embodiments, the signal acquisition device 100 may include a wearable body (e.g., clothing) for wearing on a user's body. When the user wears the wearable body, the multiple electrodes therein can contact the user's skin, thereby acquiring EMG signals from the skin surface. Exemplarily, the potential difference acquired by two electrodes spaced apart along the muscle fiber direction of the target muscle can characterize the EMG signal of the target muscle. In some embodiments, the wearable body can contact multiple parts of the body, such as the calf, thigh, buttocks, waist, back, chest, shoulder, neck, etc., to acquire EMG signals from that part. As an example only, the wearable body contacts the user's leg, and the signal acquisition device 100 is used to acquire EMG signals from the user's leg muscles.

[0040] In some embodiments, the wearable body includes, but is not limited to, tops (e.g., T-shirts, vests, tank tops, jackets, etc.), shoulder pads, belts, wristbands, elbow pads, bracelets, knee pads, skirts, trousers (e.g., long pants, shorts, etc.), socks, etc. In some embodiments, the wearable body includes straps, which can be secured to the user's waist, chest, wrists, arms, ankles, legs, neck, or fingers by binding, adhesive, or other methods. This specification does not limit the form of the wearable body, and any device that can use this specification is within the scope of protection of this specification. In some embodiments, the wearable body includes a base 110 and a plurality of electrodes 120.

[0041] The substrate 110 serves as a carrier for components such as the electrode 120, and positions the electrode 120 at the target muscle of the human body. In some embodiments, the substrate 110 can be implemented as a wearable structure for the legs, such as leg straps (e.g., full-leg straps, thigh straps, calf straps, etc.), leg sleeves (e.g., full-leg sleeves, thigh sleeves, calf sleeves, etc.), socks (e.g., calf socks, thigh socks, pantyhose, etc.), trousers, etc. In some embodiments, such as Figure 1 As shown, the base 110 forms a leg sleeve. The leg sleeve can be a closed ring structure, which is elastic and can stretch and contract radially, allowing it to fit snugly over the user's leg for comfortable wear. It should be noted that the base 110 is not limited to... Figure 1 The leg sleeves shown may also include other forms (such as sheet structures, rings, etc.).

[0042] Electrode 120 can acquire electromyographic (EMG) signals from a target muscle of the user. For example, electrode 120 can be fixed to base 110 and in contact with the user's skin to acquire EMG signals from the skin surface. In some embodiments, electrode 120 may include a first electrode 121 and a second electrode 122. The first electrode 121 and the second electrode 122 can be used to acquire EMG signals from a target muscle of the user, which may refer to a single muscle or the same muscle group (e.g., the quadriceps femoris muscle group including the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius). For example, the first electrode 121 and the second electrode 122 can be arranged at intervals along the muscle fiber direction of the target muscle and extend in a direction perpendicular to the muscle fiber direction, so that the potential of the skin surface can be acquired at their respective locations, and the potential difference between the acquired potentials can be used to reflect the EMG signal of the target muscle. In some embodiments, when the target muscle is a single muscle, since there are multiple other muscles around the target muscle, the EMG signal acquired by electrode 120 may include the EMG signals of the target muscle and other surrounding muscles. Since the target muscle and other surrounding muscles belong to the same muscle group, and the electromyographic (EMG) signals generated by muscles in the same muscle group are relatively similar, the EMG signal actually collected by electrode 120 is close to the EMG signal of the target muscle, with a small error. That is, the EMG signal actually collected by electrode 120 can characterize the EMG signal of the target muscle. It should be noted that in some other embodiments, the proportion of noise (i.e., EMG signals from other muscles surrounding the target muscle) in the EMG signal collected by electrode 120 can be reduced by designing the shape of electrode 120 and processing algorithms, thereby improving the accuracy of the signal acquisition device 100. This specification does not impose too many limitations on this.

[0043] In some embodiments, electrode 120 can acquire electromyographic signals of target muscles on the front or back of the user's leg. Taking the calf as an example, target muscles on the front of the user's calf may include the peroneus longus, tibialis posterior, etc.; target muscles on the back of the calf may include the soleus, gastrocnemius, etc. In some embodiments, the muscles on the back of the leg (e.g., the gastrocnemius) provide the main propulsion for physical activities such as walking, running, and jumping. By having electrode 120 acquire electromyographic signals of target muscles on the back of the user's leg (e.g., the electromyographic signal of the gastrocnemius), the user's running movements can be monitored more accurately. In some embodiments, the first electrode 121 and the second electrode 122 may be arranged at intervals along the muscle fiber direction of the gastrocnemius and extend in a direction perpendicular to the muscle fiber direction, respectively. That is, the first electrode 121 and the second electrode 122 can be disposed on the gastrocnemius muscle, arranged at intervals along the user's height direction and extending along an extension direction perpendicular to the user's height direction respectively. The first electrode 121 and the second electrode 122 respectively collect the potential of the skin surface at their respective positions, and the potential difference between the collected potentials can be used to reflect the electromyographic signal of the gastrocnemius muscle.

[0044] In some embodiments, the plurality of electrodes 120 comprise conductive yarns, through which the electrodes 120 collect or transmit electrical signals. The conductive yarn refers to yarn with conductive properties. For example, the conductive yarn is a conductive metal wire. In some embodiments, conductive metal can be deposited on the surface of the yarn to form the conductive yarn. The yarn includes textile materials such as nylon, polyester, spandex, TPU (polyurethane elastomer), etc. Exemplarily, silver and / or silver chloride (chlorine content 5%-15%) is deposited on the surface of the yarn to form the conductive yarn. In some embodiments, the electrodes 120 can be woven from the conductive yarn.

[0045] In some embodiments, the substrate 110 may include substrate yarn. Since the substrate 110 carries multiple electrodes 120, to avoid interference from the substrate 110 with the signal acquisition of the electrodes 120 (e.g., the first electrode 121 and the second electrode 122), thus affecting the accuracy of electromyography (EMG) signal acquisition, in some embodiments, the substrate yarn may include insulating yarn. The insulating yarn prevents the substrate 110 from receiving EMG signals from human skin, thus avoiding interference with the operation of the electrodes 120 (e.g., the first electrode 121 and the second electrode 122). To make the wearable body elastic, allowing it to conform well to the user's skin during wear to facilitate the acquisition of EMG signals by the electrodes 120, the substrate yarn may include elastic yarn, which makes the substrate 110 elastic. In some embodiments, the substrate yarn may simultaneously possess elasticity and insulation, i.e., the substrate yarn may include elastic insulating yarn. In some embodiments, the substrate 110 and the multiple electrodes 120 are integrally woven together; that is, the conductive yarn and the substrate yarn are integrally woven together. For example, an intarsia four-way machine can be used to achieve integrated weaving of conductive yarns and base yarns. For instance, a pre-designed weaving pattern can be imported into the four-way machine for automatic weaving of conductive and base yarns. Integrated weaving can be understood as the process of continuously weaving multiple yarns to obtain a complete fabric. For example, when a fabric contains areas that need to be woven separately with different types of yarns, integrated weaving can continuously weave these areas using transitional weaving techniques (e.g., tuck weaving) between different areas, without needing to prefabricate each area separately and then "stitch" them together through post-processing (e.g., sewing or gluing).

[0046] This embodiment of the specification integrates the substrate 110 with multiple electrodes 120 through a single braiding process. This ensures that the substrate 110 and electrodes 120 as a whole possess elasticity and consistency, adapting to the user's wear and enhancing the wearing experience. The elasticity of the substrate 110 allows the electrodes 120 to fit snugly against the user's skin, ensuring accurate signal acquisition. The integrated braiding technology simplifies the manufacturing process, automates the production of the signal acquisition device 100, and offers advantages such as ease of mass production, controllable quality, and excellent consistency.

[0047] The average blood pressure in the capillaries on the surface of human skin is approximately 7.85 kPa. When clothing exerts excessive pressure on the body while worn (e.g., close to or greater than this average), it can obstruct blood flow, leading to difficulty or even cessation of blood flow. Conversely, insufficient pressure may result in the clothing slipping off easily, affecting comfort and stability. In some embodiments, to ensure high comfort and stability, the pressure exerted by the signal acquisition device 100 on the body can range from 1.96 kPa to 3.92 kPa when worn. Through integrated weaving, the thickness and / or yarn density of different areas of the wearable body of the signal acquisition device 100 can be adjusted, thereby regulating the elasticity of various parts of the wearable body. This allows the wearable body to conform well to the user's skin while maintaining appropriate pressure on the user's body. Specifically, the thicker a certain area of ​​the wearable body, the greater its elasticity; conversely, the thinner a certain area, the less elastic it is. The greater the elastic yarn density in a certain area of ​​the wearable device, the greater the elasticity and the stronger the elasticity in that area. Conversely, the lower the elastic yarn density in a certain area of ​​the wearable device, the less elastic the area, and the weaker the elasticity. Furthermore, by designing the elasticity of the wearable device, it achieves good extensibility, allowing the signal acquisition device 100 to be adapted to different user groups and expanding its applicability.

[0048] During the operation of the signal acquisition device 100, the wearable body may become wet due to external environmental factors (such as rain) and personal factors of the user (such as sweating during exercise). To prevent different electrodes 120 (e.g., the first electrode 121, the second electrode 122) from becoming electrically connected due to the wet wearable body, in some embodiments, such as... Figure 1 As shown, the wearable body also includes a waterproof layer 130. The waterproof layer 130 can prevent abnormal conductivity between the electrodes 120 due to moisture, thereby avoiding the wearable body from affecting the accuracy of electromyography signal acquisition due to moisture. In some embodiments, the waterproof layer 130 includes waterproof yarns, which can respectively surround different electrodes 120. For example, the waterproof yarns can surround the first electrode 121 and / or the second electrode 122 to isolate the first electrode 121 from the second electrode 122. In some embodiments, the waterproof layer 130 is integrally woven with the substrate 110 and the multiple electrodes 120, that is, the waterproof yarn, conductive yarn, and substrate yarn are integrally woven. Integral weaving can improve the flatness of the wearable body surface, simplify the processing flow, enable automated production, and has advantages such as easy mass production, controllable quality, and excellent consistency.

[0049] For data and specifications regarding waterproof yarns, conductive yarns, and other yarns, please refer to the later parts of this manual (e.g., Figure 2 (Related content).

[0050] It should be noted that the above regarding Figure 1 The description provided is for illustrative purposes only and is not intended to limit the scope of this application. Various changes and modifications can be made by those skilled in the art based on the guidance of this application. For example, in some embodiments, the signal acquisition device 100 may further include one or more components (e.g., circuit board, battery, Bluetooth, amplifier, memory, inertial sensor, etc.). Optionally or additionally, when a user wears the signal acquisition device 100, the one or more components may be located on the outside of the leg or waist, etc. These changes and modifications do not depart from the scope of this specification.

[0051] In some embodiments, by designing different parameters of the conductive yarn, the conductive yarn can possess corresponding performance characteristics. For example, by designing the thickness of the conductive yarn, it can be adapted to different processing machines; by designing the strength of the conductive yarn, it can be ensured that the conductive yarn is not easily broken when it enters the processing machine for integrated weaving; by designing the elastic modulus of the conductive yarn, it can be adapted to the processing requirements of different processing machines, and also facilitates subsequent control of the elasticity of different areas of the wearable body of the signal acquisition device 100; by designing the conductivity of the conductive yarn, the electrode 120 can have better conductivity, improving the sensitivity of the electrode 120; by designing the durability of the conductive yarn, the performance and service life of the signal acquisition device 100 can be improved, reducing the probability of problems such as loss of conductivity, deformation, and discoloration in the signal acquisition device 100.

[0052] In some embodiments, the conductive yarn may include, but is not limited to, metallic conductive yarn and non-metallic conductive yarn. For example, metallic conductive yarn may include silver-plated nylon low-elasticity yarn, silver-plated nylon yarn, silver fiber spandex-coated yarn, stainless steel yarn, etc., while non-metallic conductive yarn may include graphene polyester conductive yarn, graphene polyester staple fiber yarn, etc. Specifically, the silver-plated nylon low-elasticity yarn is made by stretching and false-twist deformation using pre-oriented yarn as the raw yarn; the silver-plated nylon yarn is made by coating the surface of nylon filaments with a silver ion layer; the silver fiber spandex-coated yarn is an elastic yarn formed by wrapping elongated spandex filaments with silver-plated nylon low-elasticity yarn in a spiral manner; the stainless steel yarn is made by stretching or bundling single filaments to form fibers; the graphene polyester conductive yarn is made by impregnating the surface of polyester filaments with graphene slurry to make them conductive; and the graphene polyester staple fiber yarn is made by adding graphene to polyester masterbatch.

[0053] In some embodiments, considering yarn uniformity, silver-plated nylon low-elasticity yarn, silver-plated nylon yarn, silver fiber spandex-covered yarn, stainless steel yarn, graphene polyester conductive yarn, and graphene polyester staple fiber yarn all exhibit good yarn uniformity, making integrated weaving easier. The finished product (e.g., the wearable body) has a more uniform yarn density throughout, is less prone to tearing under stress, and allows for easier control of elasticity in different areas. Considering tensile properties, silver-plated nylon yarn, silver fiber spandex-covered yarn, graphene polyester conductive yarn, and graphene polyester staple fiber yarn all possess good tensile properties, which is beneficial for weaving knitted fabrics with good elasticity and flexibility. In contrast, stainless steel yarn has poor tensile properties, high rigidity, and is difficult to bend into loops, making it prone to needle breakage during weaving. Considering conductivity, metal conductive yarns (stainless steel yarn, silver-plated nylon low-elasticity yarn, silver-plated nylon yarn, and silver fiber spandex-covered yarn) all exhibit good conductivity.

[0054] In summary, in some embodiments, in order to facilitate machine processing and weaving, and to ensure that the processed electrode 120 has good performance, the conductive yarn may include at least one of silver-plated nylon low-elasticity yarn, silver-plated nylon yarn, and silver fiber spandex-coated yarn.

[0055] In some embodiments, the conductive yarn is at least made of conductive fibers (e.g., carbon fiber, metal fiber, etc.) wound around elastic fibers (e.g., polyurethane, nylon, etc.), giving the conductive yarn both conductivity and elasticity, thus improving the user's wearing experience while still being able to collect electromyographic signals. In other embodiments, the conductive yarn may also be made of at least a conductive fiber surrounded by an elastic membrane (e.g., a polyurethane membrane). When the elastic membrane or elastic fiber is in its natural state, the conductive fiber is in a relaxed state, meaning that the conductive fiber may have some curved structure. In the wearing state, the wearer deforms, the elastic membrane or elastic fiber stretches, and the curved structure of the conductive fiber decreases. When the conductive fiber has no curved structure, the elastic conductive yarn is stretched to its maximum deformation.

[0056] The embodiments in this specification improve the elasticity of the electrode 120 by using elastic conductive yarn, thereby enhancing the wearing comfort of the signal acquisition device 100 and improving the signal-to-noise ratio and signal acquisition stability of the electromyographic signals acquired by the signal acquisition device 100.

[0057] In some embodiments, the conductive yarn can be waterproofed and insulated to make it waterproof and insulated, thereby preventing conduction between multiple electrodes 120 and affecting the accuracy of electromyography signal acquisition. In some embodiments, an insulating material (e.g., EVA) can be wrapped around the conductive yarn. The portion requiring conductivity (the part of the conductive yarn in contact with the user's skin) is treated, for example, by dissolving or removing the coating to achieve conductivity. The remaining coating forms a waterproof layer 130. After coating the conductive yarn with an insulating material, the elasticity of the conductive yarn is lost, making it difficult for the electrode 120 to adhere tightly to the skin. Furthermore, excessively high temperatures during the coating process can easily cause the spandex filaments in the conductive yarn to break, affecting the elasticity of the conductive yarn.

[0058] Figure 2 This is a schematic diagram of a waterproof layer according to some embodiments of this specification.

[0059] In some embodiments, such as Figure 2 As shown, waterproof yarn, conductive yarn, and base yarn are integrated and woven together. The base yarn of the base 110 surrounds the conductive yarn, and the conductive yarn is woven to form the electrode 120. The waterproof yarn is woven to form the waterproof layer 130, which surrounds the electrode 120, thereby isolating each electrode 120 from the base 110 and preventing abnormal conduction between multiple electrodes 120, which would affect the accuracy of electromyography signal acquisition. In some embodiments, the waterproof layer 130 can completely surround the electrode 120. Using waterproof yarn for partial weaving to define waterproof areas achieves the purpose of preventing conduction between electrodes 120, solving the waterproofing problem at the yarn level. In some embodiments, if a waterproof membrane is used to waterproof the electrode 120, the substrate 110, being a knitted fabric, has elasticity and extensibility. However, the elasticity and extensibility of the waterproof membrane are difficult to match those of the substrate 110, which is also a knitted fabric. When the substrate 110 deforms and stretches, the degree of deformation between the substrate 110 and the waterproof membrane may differ, potentially causing the waterproof membrane to detach from the substrate 110 or become damaged, thus affecting the waterproofing effect. However, using waterproof yarn to partially weave and divide the waterproof area addresses the waterproofing problem at the yarn level, effectively avoiding the problem of poor waterproofing due to the mismatch in mechanical properties between the knitted fabric and the waterproof membrane.

[0060] In some embodiments, the production process of waterproof yarn may include two methods: (i) adding waterproof masterbatch to the spinning solution during the spinning stage to achieve the waterproof and anti-siphoning effect of the yarn; (ii) immersing the yarn in a waterproof finishing agent and then drying it at high temperature. Method (i) produces waterproof yarn with good performance, high wash resistance, and good abrasion resistance. Method (ii) produces waterproof yarn with good waterproof performance and excellent anti-siphoning effect. In some embodiments, the production method of waterproof yarn may include: making yarn from waterproof masterbatch and coating its surface with spandex, thereby giving the waterproof yarn good waterproof performance while also making it elastic, facilitating integrated weaving, and allowing for the elastic design of the wearer.

[0061] Figure 3 This is a partial schematic diagram of a wearable body according to some embodiments of this specification. For example... Figure 3 As shown, the waterproof layer 130 and the substrate 110 are woven together in a coplanar parallel manner.

[0062] In some embodiments, the substrate 110 is woven from substrate yarns. The waterproof layer 130 is woven from waterproof yarns or other yarns. The waterproof layer 130 and the substrate 110 are woven together in a coplanar parallel manner, and the outer periphery of the waterproof layer 130 is connected to the substrate 110, thereby making the overall feel of the wearable body flat and dense, facilitating close contact between the wearable body and human skin, and facilitating the acquisition of electromyographic signals by the electrodes 120.

[0063] The connection between the outer periphery of the waterproof layer 130 and the substrate 110 can be achieved through one or more weaving methods. In some embodiments, the connection between the waterproof layer 130 and the substrate 110 can be achieved through one or more weaving methods such as loop weaving, double loop weaving, and staggered weaving.

[0064] Figure 4 These are schematic diagrams illustrating different weaving methods according to some embodiments of this specification. Figure 4 The document illustrates the weaving principles, design patterns, and actual woven products of three weaving methods: loop weaving, double loop weaving, and staggered weaving.

[0065] like Figure 4As shown, when using a loop-knitting method for splicing, the transition areas between different regions use a high-needle position and a half-needle position on the left and right sides respectively. At the half-needle position, the old loop on the needle hooks the new yarn while it remains in loop, bending it into a loop before releasing it together to complete the loop-knitting connection. This loop-knitting method increases the thickness of the junction area, resulting in a smooth, dense, and durable feel. When using a double-loop-knitting method, both sides use high-needle positions, and the connection is completed by releasing the loop twice consecutively at the junction. This double-loop-knitting method lengthens the junction area, creating visible gaps and a wrinkled edge. The staggered splicing method uses float yarn to reduce the size of the holes, resulting in a smooth and uniform thickness at the junction. In some embodiments, the waterproof layer 130 and the base 110 are woven together using a loop-knitting method, which makes the connection between the waterproof layer 130 and the base 110 smooth, dense, and durable, effectively preventing damage and breakage during use.

[0066] In some embodiments, to prevent abnormal conductivity between electrodes 120 (e.g., between the first electrode 121 and the second electrode 122), a waterproof layer 130 can be provided to isolate different electrodes 120. Multiple electrodes 120 are disposed on the substrate 110, and correspondingly, multiple waterproof layers 130 are also provided. Each waterproof layer 130 corresponds to one electrode 120, and the waterproof layer 130 isolates the corresponding electrode 120. In some embodiments, each waterproof layer 130 surrounds a corresponding electrode 120, and each electrode 120 is connected to the inner peripheral side of the corresponding waterproof layer 130. In some embodiments, such as... Figure 3 As shown, the waterproof layer 130 and the electrode 120 are woven together in a coplanar parallel manner.

[0067] In some embodiments, such as Figure 3 As shown, the substrate 110, waterproof layer 130, and electrode 120 can be sequentially woven together in a coplanar parallel manner. The waterproof layer 130 can separate the substrate 110 and electrode 120, preventing the substrate 110 from wetting the electrode 120 and causing abnormal conductivity between different electrodes 120. On the other hand, with a fixed overall thickness of the wearable body, by weaving the substrate 110, waterproof layer 130, and electrode 120 together in a coplanar parallel manner, the thickness of the electrode 120 can be effectively increased, while the contact pressure between the electrode 120 and the user's skin can be reduced, thus improving the wearing comfort of the signal acquisition device 100.

[0068] In some embodiments, the connection between the electrode 120 and the inner periphery of the corresponding waterproof layer 130 can be achieved through one or more weaving methods. In some embodiments, the connection between each electrode 120 and the corresponding waterproof layer 130 can be achieved through one or more weaving methods such as loop weaving, double loop weaving, and staggered connection. In some embodiments, reference Figure 4Each electrode 120 is woven together with the corresponding waterproof layer 130 in a loop manner, which makes the connection between the waterproof layer 130 and the electrode 120 flat, dense, strong and wear-resistant, effectively preventing the connection from being damaged or broken during use.

[0069] In some embodiments, in a coplanar, side-by-side configuration, each electrode 120 protrudes from its corresponding waterproof layer 130 in the direction toward the user's skin. That is, in the direction toward the user's skin, the thickness of the electrode 120 is greater than the thickness of the waterproof layer 130, causing each electrode 120 to protrude from its corresponding waterproof layer 130. This results in a closer contact between the electrode 120 and the skin when the substrate 110 and waterproof layer 130 are in contact, enhancing signal acquisition performance.

[0070] In some embodiments, to isolate the electrode 120 from the substrate 110 by the waterproof layer 130, each of the plurality of electrodes 120 may be woven and connected to the side of the waterproof layer 130 facing the user's skin. That is, each electrode 120 and the corresponding waterproof layer 130 are stacked and arranged in the direction facing the user's skin. In some embodiments, in the direction perpendicular to the user's skin, the area of ​​the waterproof layer 130 may be larger than the area of ​​the electrode 120 to ensure the waterproof barrier effect of the waterproof layer 130.

[0071] By weaving each electrode 120 together in a stacked manner to the side of the waterproof layer 130 facing the user's skin, each electrode 120 protrudes from the corresponding waterproof layer 130. When the substrate 110 and the waterproof layer 130 come into contact with the skin, the electrode 120 makes closer contact with the skin, thus enhancing signal acquisition.

[0072] Figure 5 This is a partial schematic diagram of a wearable body according to some embodiments of this specification. For example... Figure 5 As shown, in some embodiments, the waterproof layer 130 can also be woven and connected to the side of the substrate 110 facing the user's skin (i.e., the inner surface), that is, the waterproof layer 130 and the substrate 110 are stacked and arranged in the direction facing the user's skin, so that the waterproof layer 130 protrudes from the substrate 110, thereby increasing the vertical distance between the electrode 120 and the substrate 110, and better preventing the substrate 110 in a wet state from causing abnormal conduction between different electrodes 120.

[0073] In some embodiments, the electrode 120 is woven into the waterproof layer 130 on the side facing away from the substrate 110. That is, the electrode 120 and the waterproof layer 130 are stacked in the direction toward the user's skin, so that the electrode 120 protrudes from the waterproof layer 130, thereby ensuring a tighter contact between the electrode 120 and the skin when the substrate 110 comes into contact, enhancing signal acquisition. In some embodiments, the area of ​​the waterproof layer 130 in the direction perpendicular to the user's skin may be greater than or equal to the area of ​​the electrode 120 to ensure the waterproof barrier effect of the waterproof layer 130.

[0074] In other embodiments, when the substrate 110 and the waterproof layer 130 are stacked in the direction facing the user's skin, the electrode 120 and the waterproof layer 130 may also be woven together in a coplanar parallel manner. This specification does not impose excessive limitations on this.

[0075] In some embodiments, when the electrode 120, waterproof layer 130, and substrate 110 are sequentially woven together in a coplanar parallel configuration, the surface of the waterproof layer 130 near and / or away from the skin can be woven into an uneven shape to increase the elasticity of the waterproof layer 130 itself. During wear, the waterproof layer 130 is stretched, reducing the unevenness of its surface without weakening the waterproof effect, thus ensuring the waterproof layer 130's ability to block liquids. In some embodiments, when the waterproof layer 130 and substrate 110 are woven together in a coplanar parallel configuration, and the electrode 120 and waterproof layer 130 are woven together in a stacked configuration, the surface of the waterproof layer 130 away from the skin can be woven into an uneven shape. This facilitates connection of the electrode 120 to the surface of the waterproof layer 130 near the skin while increasing the elasticity of the waterproof layer 130. In some embodiments, when the electrodes 120 and the waterproof layer 130 are woven together in a coplanar parallel or stacked manner, the surfaces of the multiple electrodes 120 near the skin can be woven into an uneven shape to increase the effective area of ​​the electrode 120 region. This increases the contact area between the electrode 120 and the skin when the electrode 120 is stretched, improves friction with the skin, and increases the signal-to-noise ratio. In some embodiments, when the electrodes 120, the waterproof layer 130, and the substrate 110 are sequentially woven together in a coplanar parallel manner, the two surfaces of the multiple electrodes 120 near and away from the skin can be woven together to form an uneven shape simultaneously. This further increases the elasticity of the electrode 120 itself, and increases the contact area with the skin when the electrode 120 is stretched.

[0076] In some embodiments, the wearable body may not include a waterproof layer. Each electrode 120 of the plurality of electrodes includes a first region and a second region. The first region is connected to the substrate 110 through the second region. The first region contacts the user's skin to collect electrical signals, and the second region is electrically insulated from the user's skin. The first region, similar to the aforementioned electrode 120, has conductive properties, and the second region, similar to the aforementioned waterproof layer 130, has waterproof and insulating properties. The second region of each electrode 120 can isolate its first region from the first regions of other electrodes 120. In some embodiments, the second region of each electrode 120 surrounds the first region, meaning the second region and the first region of each electrode 120 can be woven together in a coplanar parallel configuration. In some embodiments, the second region of each electrode 120 and the substrate 110 can be woven together in a coplanar parallel configuration or in a stacked configuration.

[0077] This embodiment of the specification does not design a separate waterproof layer 130, but instead designs the electrode 120 in sections. The second section achieves waterproof isolation between the first section and the substrate 110, so that waterproof yarns do not need to be added during the integrated weaving process of the wearable body, saving material costs and reducing the difficulty of processing and weaving.

[0078] In some embodiments, in the direction toward the user's skin, a first region of each electrode 120 protrudes beyond a second region. That is, in the direction toward the user's skin, the thickness of the first region of each electrode 120 can be greater than the thickness of the second region, causing the first region to protrude beyond the second region. When the substrate 110 contacts the skin, the elasticity of the substrate 110 allows the first region to make closer contact with the skin, enhancing signal acquisition. Simultaneously, the first region protruding beyond the second region indirectly increases the contact area between the first region and the skin, facilitating signal acquisition.

[0079] In some embodiments, each electrode 120 includes a first region and a second region, both comprising conductive yarns. These conductive yarns are waterproofed and insulated to achieve waterproofing and insulation. For example, the electrode 120 is formed by weaving a waterproof insulating film (e.g., EVA) around the conductive yarns. Treatment is performed on the portion requiring conductivity (i.e., the first region), such as dissolving or removing the waterproof insulating film from the conductive yarns in the first region, allowing the conductive yarns in the first region to directly contact the skin for collecting electromyographic signals. The portion of the conductive yarns in the second region retaining the waterproof insulating film also provides waterproofing and insulation. Alternatively, after the conductive yarns are woven to form the electrode 120, waterproofing treatment is performed directly on the second region (e.g., immersion, application of a waterproof solvent, etc.), while no waterproofing treatment is performed on the first region.

[0080] Figure 6 This is a schematic diagram of the structure of a signal acquisition device according to other embodiments of this specification.

[0081] In some embodiments, such as Figure 6 As shown, the wearable body includes multiple straps 140 connected to the base 110, with the straps 140 aligned along the direction of muscle fibers (e.g., Figure 6 The multiple straps 140 are arranged at intervals in the X direction, with each strap extending perpendicular to the muscle fibers. In the worn state, the base 110 extends along the muscle fiber direction, and the multiple straps 140 and electrodes 120 are arranged at intervals along the muscle fiber direction. By way of example only, when the signal acquisition device 100 is worn on the leg, the base 110 covers a portion of the leg, and each strap 140 connects and fixes the base 110 to both sides perpendicular to the muscle fibers, thus securing the base 110 to the leg. In some embodiments, the size of each of the multiple straps 140 is individually adjustable to better adapt the wearer to the user's body, ensuring that the base 110 fits snugly against the user's skin, and ensuring that the electrodes 120 can acquire electromyographic signals.

[0082] In some embodiments, different parts of the substrate 110 have different elasticities, so that each area of ​​the wearable body can fit into the corresponding area of ​​the user's wearable part, thereby ensuring signal acquisition effectiveness. In some embodiments, the portion of the substrate 110 near or surrounding the electrode 120 can have greater elasticity, allowing the electrode 120 to fit into the user's skin, ensuring the accuracy of signal acquisition, and also compensating for the reduced elasticity caused by the electrode 120 and the waterproof layer 130, ensuring that the substrate 110 can fit into the lines of different locations on the user's body, ensuring stable signal acquisition. In some embodiments, the substrate 110 includes a direction perpendicular to the direction of muscle fibers (i.e., Figure 6 The overlapping region (e.g., in the direction perpendicular to the X direction) that overlaps with multiple electrodes 120 Figure 6 The dashed area A in the diagram), the base 110 includes the direction perpendicular to the direction of the muscle fibers (i.e., Figure 6 Non-overlapping regions (e.g., in the direction perpendicular to the X direction) that are offset from multiple electrodes 120. Figure 6 The area on the substrate 110 shown is outside the dashed area A. (e.g., the area on the substrate 110 shown is outside the dashed area A). Figure 6 As shown, both overlapping and non-overlapping regions are along the direction perpendicular to the muscle fiber direction (i.e., Figure 6 Extending in the perpendicular direction of the X-axis, overlapping and non-overlapping areas are in the direction of the muscle fiber (i.e., perpendicular to the X-axis). Figure 6 Adjacently distributed in the X direction. For example, when the substrate 110 forms the leg sleeve, the leg sleeve is worn in the direction of the muscle fibers of the target muscle (e.g., the direction of the muscle fibers of the target muscle). Figure 6In the X direction, the substrate 110 includes an annular overlapping region that is located in the same dimension as the electrode 120, and the region on the substrate 110 that is offset from the electrode 120 in the X direction is the non-overlapping region. In some embodiments, in the direction perpendicular to the direction of the muscle fibers, the portion of the substrate 110 that is in the same dimension as the electrode 120 and the waterproof layer 130 has greater elasticity to compensate for the reduction in elasticity caused by the electrode 120 and the waterproof layer 130, so that the wearer can fit better with the wearing area.

[0083] In the human circulatory system, blood returns more easily to the heart when it is near the heart, and more difficult when it is far from the heart. To reduce the impact of the wearable body of the signal acquisition device 100 on blood return when worn, the elasticity of the distal end 112 of the base 110, which is far from the user's heart, is greater than the elasticity of the distal end 111 of the base 110, which is close to the user's heart. By setting the distal end 112 of the base 110 to have greater elasticity, the compression force of the distal end 112 of the base 110 on the human body is reduced, facilitating blood return to the heart and improving the wearing comfort and safety of the signal acquisition device 100.

[0084] In some embodiments, to make the elasticity of the distal end 112 greater than that of the proximal end 111, the thickness of the distal end 112 can be greater than that of the proximal end 111 during the integrated knitting process. In other embodiments, to make the elasticity of the distal end 112 greater than that of the proximal end 111, the density of the base yarn of the distal end 112 can also be greater than that of the base yarn of the proximal end 111 during the integrated knitting process.

[0085] Figure 7 This is a structural schematic diagram of a fastener according to some embodiments of this specification. In some embodiments, see... Figure 7The substrate 110 is fixed with multiple metal parts, each corresponding to an electrode 120. Exemplarily, the metal parts may include a first metal part 151 and a second metal part 152. The first metal part 151 is electrically connected to the first electrode 121, and the second metal part 152 is electrically connected to the second electrode 122. The first metal part 151 and the second metal part 152 are magnetically detachably connected to an external processing circuit to enable data transmission between the first electrode 121, the second electrode 122, and the processing circuit. The metal parts (including the first metal part 151 and the second metal part 152) can serve as interface parts for signal transmission, used to transmit signals with the processing circuit. The electrical signals collected by the electrodes 120 are transmitted to the processing circuit through the corresponding metal parts for processing. The processing circuit can be used for signal processing, storage, transmission, etc. For example, the processing circuit can process signals collected by multiple electrodes 120. In some embodiments, the metal parts can be implemented as metal buckles, metal rings, metal blocks, etc., and can be magnetically detachably connected to the processing circuit. When the metal component is magnetically connected to the processing circuit, the electrical signal collected by electrode 120 is transmitted to the processing circuit through the metal component.

[0086] In some embodiments, see Figure 7A fixing member is fixedly provided on the substrate 110, and the fixing member is connected to the metal member to reinforce the connection between the metal member and the substrate 110. The number of fixing members can be the same as the number of metal members, with a one-to-one correspondence between the fixing member and the metal member. In some embodiments, the fixing member is fixedly laid on the portion of the substrate 110 connected to the metal member. For example, the fixing member may include a lettering film, which is pressed onto the portion of the substrate 110 connected to the metal member using a hot-pressing process. In some embodiments, the area of ​​the fixing member covering the substrate 110 is larger than the area of ​​the metal member covering the substrate 110, to avoid the substrate 110 breaking when the metal member is repeatedly pulled during the assembly and disassembly of the processing circuit. Exemplarily, the fixing member may include a first fixing member 161 and a second fixing member 162, with a first metal member 151 connected to the first fixing member 161 and a second metal member 152 connected to the second fixing member 162. In some embodiments, a connecting member 170 is provided between the first fixing member 161 and the second fixing member 162, connecting the first fixing member 161 and the second fixing member 162. The first metal component 151 and the second metal component 152 are simultaneously connected to the processing circuit. During wear and movement, the distance between the first metal component 151 and the second metal component 152 changes due to the elasticity of the base 110, potentially causing damage to the processing circuit. By providing a connector 170 between the first fixing component 161 and the second fixing component 162, the distance between the first fixing component 161 and the second fixing component 162 can be fixed, thus fixing the distance between the first metal component 151 and the second metal component 152, thereby preventing damage to the processing circuit. In some embodiments, the first fixing component 161, the second fixing component 162, and the connector 170 can be an integral structure. For example, the first fixing member 161, the second fixing member 162, and the connector 170 can all be made into lettering films. The two ends of the lettering film are pressed together with the base 110 part connected to the metal part by a hot pressing process to form the first fixing member 161 or the second fixing member 162. The middle part of the lettering film is also pressed together with the two ends of the lettering film (i.e., the first fixing member 161 and the second fixing member) by a hot pressing process. At this time, the first fixing member 161, the second fixing member 162, and the connector 170 can be regarded as a whole. Maintaining the structural stability of this whole and preventing deformation can avoid the collapse of the processing circuit connected to this whole.

[0087] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0088] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0089] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0090] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0091] Finally, it should be understood that the embodiments described in this application are merely illustrative of the principles of the embodiments of this application. Other modifications may also fall within the scope of this application. Therefore, alternative configurations of the embodiments of this application are considered as examples and not limitations, and are regarded as consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly described and illustrated in this application.

Claims

1. A signal acquisition device, characterized in that, Includes a wearable body, the wearable body comprising: Multiple electrodes in contact with the user's skin, the multiple electrodes including a first electrode and a second electrode, the first electrode and the second electrode being configured to acquire electromyographic signals of a target muscle of the user, the first electrode and the second electrode being arranged at intervals along the muscle fiber direction of the target muscle; and, A substrate is configured to support the plurality of electrodes and position the plurality of electrodes at the target muscle; wherein... The substrate includes substrate yarns, and the plurality of electrodes include conductive yarns. The substrate and the plurality of electrodes are integrally woven together.

2. The signal acquisition device as described in claim 1, characterized in that, The wearable body also includes a waterproof layer, which comprises waterproof insulating yarn, and the waterproof layer is integrally woven with the substrate and the plurality of electrodes.

3. The signal acquisition device as described in claim 2, characterized in that, The waterproof layer and the substrate are woven together in a coplanar and parallel manner, and the substrate is connected to the outer periphery of the waterproof layer.

4. The signal acquisition device as described in claim 2, characterized in that, The waterproof layer is woven into the inner surface of the substrate facing the user's skin.

5. The signal acquisition device as described in claim 3 or 4, characterized in that, The plurality of electrodes are woven together on the side of the waterproof layer opposite to the substrate.

6. The signal acquisition device as described in claim 3 or 4, characterized in that, The number of waterproof layers is multiple, and each of the multiple electrodes is connected to the inner circumference of a corresponding waterproof layer.

7. The signal acquisition device as described in claim 3 or 4, characterized in that, The surface of the waterproof layer is woven into an uneven shape; or, the surfaces of the plurality of electrodes are woven into an uneven shape.

8. The signal acquisition device as described in claim 1, characterized in that, When worn, the substrate includes a proximal end close to the user's heart and a distal end far from the user's heart, with the distal end having greater elasticity than the proximal end.

9. The signal acquisition device as described in claim 8, characterized in that, The thickness of the distal end is greater than the thickness of the proximal end.

10. The signal acquisition device as described in claim 8, characterized in that, The density of the matrix yarn at the distal end is greater than the density of the matrix yarn at the proximal end.

11. The signal acquisition device as described in claim 1, characterized in that, Each of the plurality of electrodes includes a first region and a second region, the first region being connected to the substrate through the second region, the first region being in contact with the user's skin to collect electrical signals, and the second region being electrically insulated from the user's skin.

12. The signal acquisition device as described in claim 11, characterized in that, In the direction toward the user's skin, the first region protrudes beyond the second region.

13. The signal acquisition device as described in claim 11, characterized in that, The conductive yarn in the second region is covered with a waterproof insulating film.

14. The signal acquisition device as described in claim 1, characterized in that, The conductive yarn is made of at least conductive fibers wound around elastic fibers; or, the conductive yarn is made of at least an elastic membrane covering the periphery of the conductive fibers.

15. The signal acquisition device as described in claim 1, characterized in that, The substrate forms a leg sleeve, which is elastically expandable and contractible along its radial direction, and the plurality of electrodes are used to collect electromyographic signals from the back of the user's legs.

16. The signal acquisition device as described in claim 1, characterized in that, The wearable body includes multiple straps connected to the base, the multiple straps being arranged at intervals along the direction of the muscle fibers, and in the wearing state, the size of each of the multiple straps is individually adjustable.

17. The signal acquisition device as described in claim 1, characterized in that, The substrate includes an overlapping region that overlaps with the plurality of electrodes in a direction perpendicular to the direction of the muscle fibers, and a non-overlapping region that is offset from the plurality of electrodes in a direction perpendicular to the direction of the muscle fibers. Both the overlapping and non-overlapping regions extend in a direction perpendicular to the direction of the muscle fibers. The overlapping and non-overlapping regions are distributed adjacent to each other in the direction of the muscle fibers, and the elasticity of the overlapping region is greater than that of the non-overlapping region.

18. The signal acquisition device as described in claim 1, characterized in that, The substrate is fixed with a first metal component and a second metal component. The first metal component is electrically connected to the first electrode, and the second metal component is electrically connected to the second electrode. The first metal component and the second metal component are magnetically detachably connected to the processing circuit to realize data transmission between the first electrode, the second electrode and the processing circuit.

19. The signal acquisition device as described in claim 18, characterized in that, A first fixing member and a second fixing member are fixedly provided on the base. The first metal member is connected to the first fixing member, and the second metal member is connected to the second fixing member. A connecting member is provided between the first fixing member and the second fixing member.

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