A highly integrated flexible pressure sensing and rigid-flex coupled airflow driven integrated fabric wristband

Abstract

The application discloses a highly integrated flexible pressure sensing and rigid-flexible coupling airflow driving integrated fabric wristband, and comprises a multilayer wristband with multiple device units, a flexible pressure sensing unit is a sponge pressure sensor prepared by mixing polydimethylsiloxane, reduced graphene oxide and sodium chloride, and conductive yarns woven into the wristband are used as an electrode layer; the rigid-flexible coupling airflow driving unit comprises a thin film type flexible air bag, a hard micro air pump and a signal processor; the fabric base comprises a one-layer lacing area, a two-layer-three-layer-two-layer variable air bag-sensor composite area which is sealed on both sides of the air bag, and a two-layer pipeline area, multilayer variation is realized by fabric weave design of warp and weft yarn configuration and plain weave interval arrangement of elastic yarn and inelastic yarn, and the thin film air bag, the air pump and the processor are embedded in the wristband during weaving. The application realizes multilayer variable multiple element integrated one-piece forming of the wristband, greatly shortens the preparation process, and improves product consistency.

Description

Technical Field

[0001] This invention relates to the field of wearable electronic fabric technology, specifically to an integrated fabric wristband that combines highly integrated flexible pressure sensing and rigid-flexible coupled airflow drive. Background Technology

[0002] In the context of the deep integration of the Internet of Things and wearable technology, electronic fabrics, combining the softness, breathability, and skin-friendly properties of traditional fabrics with the sensing, data transmission, information processing, and intelligent feedback functions provided by electronic integration technology, represent a key development direction in the wearable device field. Wearable devices with rigid-flexible coupled heterogeneous structures composed of multiple materials and functions can integrate functional modules such as sensing, actuation, signal transmission, and power supply, breaking through the application limitations of traditional single-function fabric devices and becoming the mainstream R&D direction for high-end intelligent wearable devices.

[0003] Currently, wearable devices based on heterogeneous fabrics generally employ a step-by-step integration fabrication process, which has significant technical drawbacks. This process involves separately fabricating various heterogeneous functional units such as fabric electrodes, functional layers, encapsulation layers, and driving elements, and then combining these units into a single structure using traditional methods such as sewing and gluing. If additional functional modules are needed, the new components require separate processing and secondary integration, resulting in a complex overall fabrication process with numerous steps and intricate integration links. Furthermore, the multi-step processing is prone to connection errors, process parameter deviations, and bonding accuracy defects, which not only increase the difficulty and cost of fabrication but also severely impact device performance. Structural defects such as interlayer gaps, local delamination, and stress concentration can cause problems such as signal drift, unstable sensitivity, and poor repeatability in sensing units. Moreover, under repeated bending and stretching conditions caused by human movement, this heterogeneous composite structure is prone to interlayer delamination, component misalignment, and increased circuit losses, significantly reducing the device's mechanical stability and lifespan. Summary of the Invention

[0004] Existing heterogeneous wearable fabric devices suffer from structural redundancy, lengthy fabrication processes, and poor structural-performance compatibility, resulting in insufficient sensing accuracy, operational stability, and durability to meet the demands of high-precision, long-duration smart wearable applications. Therefore, there is still significant room for improvement in existing heterogeneous structure design and integration fabrication technologies. There is an urgent need to develop simplified and adaptable fabrication processes and structures to overcome the performance and process bottlenecks posed by heterogeneous composite structures.

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an integrated fabric wristband that integrates flexible pressure sensing and rigid-flexible coupling airflow drive, aiming to improve the integration of flexible and rigid devices with the fabric matrix while simplifying the manufacturing process.

[0006] An integrated fabric wristband that highly integrates flexible pressure sensing and rigid-flexible coupling airflow drive, wherein the fabric wristband is a variable multilayer wristband containing multiple device units, including a flexible pressure sensing unit, a rigid-flexible coupling airflow drive unit and a fabric matrix.

[0007] The flexible pressure sensing unit is a sponge pressure sensor, which is prepared by mixing polydimethylsiloxane, reduced graphene oxide and sodium chloride, and uses conductive yarn woven into the wristband as the electrode layer of the sponge pressure sensor.

[0008] The rigid-flexible coupling airflow drive unit includes a thin-film flexible airbag, a rigid air pump, and a signal processor.

[0009] The fabric matrix includes a single-layer tie area, a two-layer-three-layer-two-layer airbag-sensor composite area that is sealed only on both sides of the airbag, and a two-layer tube area; the variable multi-layer wristband achieves multi-layer variation through a fabric structure design that alternates between elastic and non-elastic warp and weft yarns and plain weave, and embeds the thin-film flexible airbag, rigid air pump and signal processor inside the wristband during weaving.

[0010] Furthermore, the sponge pressure sensor of the present invention controls the mechanical and electrical properties by changing the ratio of polydimethylsiloxane, sodium chloride, and reduced graphene oxide; increasing the ratio of sodium chloride to polydimethylsiloxane increases the porosity of the sponge matrix and reduces the compressive strength, while increasing the content of reduced graphene oxide reduces the sponge resistance; the size of the sponge pressure sensor is controlled by templates of different sizes and specifications.

[0011] Furthermore, the upper and lower layers of the flexible film airbag of the present invention are polydimethylsiloxane films, and the middle support layer is a mixture of polydimethylsiloxane and silica. The film airbag is connected to a capillary tube and is formed by hot pressing at 90°C for 30 minutes. The air pump is a micro air pump, and the air pump output flow rate is controlled by designing different DC voltages to control the airbag inflation height. The higher the voltage, the higher the airbag inflation height. The signal processor includes a charging port and a Bluetooth transmission module.

[0012] Furthermore, in the warp configuration of the modified multilayer wristband of the present invention, elastic yarns are arranged in the two-layer structure on the skin-contacting side and in the three-layer structure on the upper and lower electrode layers of the sensor, while the remaining parts are non-elastic yarns; in the weft configuration of the modified multilayer wristband, conductive yarns are introduced only in the upper and lower layers of the sensor in the three-layer structure, while the remaining parts are non-elastic yarns; thereby achieving that the single-layer and double-layer parts are not stretchable, one side of the airbag is not stretchable and deformable while the other side is stretchable and deformable, and both the upper and lower layers of the sponge sensor are stretchable and deformable.

[0013] Furthermore, in the fabric wristband of the present invention, the first and second heddles are distributed to the binding structures on both sides according to the forward threading method, the third to sixth heddles are distributed to the non-elastic area, and the seventh to tenth heddles are distributed to the elastic yarn area, for a total of 10 heddles. The nylon yarn is forward threaded through the first 6 heddles, and the nylon high-elastic yarn is forward threaded through the last 4 heddles, with 2 threads per reed.

[0014] Furthermore, according to the structure of the wristband, the present invention is divided into sections: the tube area corresponds to section A, the airbag-sensor composite area corresponds to sections B, C, and D, and the strap area corresponds to section E; the weaving is carried out in the order of E, D, C, B, and A; in section E, the warp yarns are regularly alternating between elastic and inelastic yarns, and the weft yarns are elastic yarns; in section D, the upper layer of warp and weft yarns are both elastic yarns, and the lower layer of warp and weft yarns are both inelastic yarns; in section C, the upper layer of warp yarns are elastic yarns and the weft yarns are conductive yarns, the middle layer of warp yarns are elastic yarns and the weft yarns are conductive yarns, and the lower layer of warp and weft yarns are both inelastic yarns; the warp and weft yarns in section B are the same as those in section D; in section A, the upper layer of warp yarns is elastic yarns and the weft yarns are a combination of elastic and inelastic yarns, and the lower layer of warp yarns is inelastic yarns and the weft yarns are a combination of elastic and inelastic yarns; each layer is spaced one weft yarn apart according to the manufacturing sequence, that is, each layer introduces one yarn before moving on to the next layer of weft yarns.

[0015] Furthermore, in this invention, parts A, B, and D are sealed on both sides, while part C is sealed only on the sides of the upper and lower layers of fabric of the airbag.

[0016] Furthermore, the fabric wristband of the present invention includes the following preparation process: preparing a thin-film flexible airbag, an integrated element of an air pump and a signal processor; weaving the wristband, embedding the integrated element inside the wristband during weaving; preparing a mixed powder of a sponge pressure sensor, filling the mixed powder into the sensor cavity layer reserved in the wristband, and then hot-pressing and drying, impregnating to remove sodium chloride, and drying again to form the final product.

[0017] Furthermore, after the mixed powder of the sponge pressure sensor of the present invention is filled into the sensor cavity layer, it is hot-pressed at 90°C for 30 minutes to solidify and form; the airbag-sensor composite area of ​​the wristband is immersed and washed in deionized water at 50°C for 12 hours, and then dried at room temperature for 24 hours.

[0018] Furthermore, the total length of the wristband of the present invention is 21cm, the airbag-sensor composite area is 2.5cm, the tube area is 9.5cm, the lacing area is 9.0cm, and the wristband width is 2.5cm.

[0019] This invention enables the integrated molding of multiple components in a multi-layered, rigid-flexible coupled heterogeneous structure of a wristband by varying the warp and weft yarn configuration and fabric structure. This significantly shortens the manufacturing process and improves product consistency. Attached Figure Description

[0020] Figure 1 This is a diagram illustrating how to wear the wristband.

[0021] Figure 2 This is an analytical diagram of the fabric structure.

[0022] Figure 3 This is a schematic diagram showing the distribution of internal components of the wristband.

[0023] Figure 4 This is a longitudinal cross-sectional view of the wristband (pressure sensing unit). Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0025] like Figure 1 As shown, an integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive is disclosed. The fabric wristband is a variable multilayer wristband containing multiple device units, wherein the devices include a flexible pressure sensing unit, a rigid-flexible coupling airflow drive unit, and a fabric matrix.

[0026] The flexible pressure sensing unit is a sponge pressure sensor prepared by mixing polydimethylsiloxane (PDMS), reduced graphene oxide (rGO), and sodium chloride (NaCl) in a specific ratio to form a mixed powder. The mechanical and electrical properties of the pressure sensor can be controlled by changing the ratio of PDMS, NaCl, and rGO. Within an appropriate range, increasing the ratio of NaCl to PDMS increases the porosity of the sponge matrix and reduces compressive strength; increasing the rGO content reduces the sponge resistance. The sensor size can be precisely controlled using templates of different sizes. Conductive yarn woven into the wristband serves as the electrode layer of the sensor.

[0027] like Figure 3 As shown, the rigid-flexible coupling airflow drive unit includes a thin-film flexible airbag, a rigid air pump, and a signal processor. The upper and lower layers of the thin-film flexible airbag are PDMS films, and the middle support layer is a mixture of PDMS and silica in a specific ratio, connected to a capillary tube, and hot-pressed at 90°C for 30 minutes to form the airbag. The rigid air pump can be a miniature air pump (e.g., 2cm × 2cm), and the signal processor is 2cm × 1.5cm. By designing different DC voltages, the output airflow of the air pump can be controlled, thereby controlling the inflation height of the airbag. The higher the voltage, the higher the inflation height. The rigid signal processor also includes a charging port and a Bluetooth transmission module to ensure effective airflow drive and facilitate data transmission.

[0028] The fabric matrix includes: a single-layer tie area, a two-layer-three-layer-two-layer airbag-sensor composite area sealed only on both sides of the airbag, and a two-layer channel area. The multi-layer variation is achieved through the fabric structure design of the warp and weft yarns in the elastic and non-elastic areas, with alternating plain weaves, allowing for variation during weaving. At the same time, a thin-film flexible airbag, a rigid air pump, and a rigid signal processor are embedded.

[0029] like Figure 2 As shown, in the warp configuration of the variable multilayer wristband, due to the deformation requirements of the airbag and sensor, and combined with the fabric structure design, elastic yarn (100D / 2 nylon high-elastic yarn) is arranged in the two-layer structure to fit the skin side and in the upper and lower electrode layers of the sensor in the three-layer structure; the remaining parts are non-elastic yarn (nylon yarn). In the weft configuration, conductive yarn (silver-plated conductive yarn) only needs to be introduced in the upper and lower layers of the sensor in the three-layer structure; the remaining parts are non-elastic yarn. It can achieve non-stretchable single-layer and double-layer (tubular) parts (i.e., the tie area and tube area cannot be stretched and deformed); one side of the airbag cannot be stretched and deformed, while the other side can be stretched and deformed; both the upper and lower layers of the sponge sensor can be stretched and deformed.

[0030] Following the forward threading method, the first and second heddles are assigned to the consolidation structure (plain weave) on both sides, the third to sixth heddles are assigned to the non-elastic area, and the seventh to tenth heddles are assigned to the elastic yarn area, for a total of 10 heddles. Nylon yarn is forward threaded through the first 6 heddles, and nylon high-elastic yarn is forward threaded through the last 4 heddles; each reed is threaded 2 times.

[0031] like Figure 4 As shown, according to the wristband's structure, the tube area corresponds to part A, the airbag-sensor composite area corresponds to parts B, C, and D, and the strap area corresponds to part E. To facilitate the introduction of relevant components during weaving, the weaving is carried out in the order of E, D, C, B, and A, and the weaving angle is... Figure 4 The wristband's perspective is rotated vertically (the following description is based on the weaving angle). In section E, the warp yarns alternate regularly with elastic and non-elastic yarns, while the weft yarns are elastic. In section D, the upper layer consists of elastic warp and weft yarns, while the lower layer consists of non-elastic warp and weft yarns. In section C, the upper layer of warp yarns is elastic, and the weft yarns are conductive; the middle layer of warp yarns is elastic, and the weft yarns are conductive; the lower layer consists of non-elastic warp and weft yarns. Section B uses the same warp and weft yarns as section D. In section A, the upper layer of warp yarns is elastic, and the weft yarns are a mixture of elastic and non-elastic yarns; the lower layer of warp yarns is non-elastic, and the weft yarns are a mixture of elastic and non-elastic yarns. Each layer is spaced one weft yarn apart according to the weaving sequence, meaning that one yarn is introduced into each layer before the next layer's weft yarn is introduced.

[0032] From the perspective of the sealing on both sides, parts A, B, and D are sealed on both sides, while part C is sealed only on the sides of the upper and lower layers of fabric of the airbag (from the perspective of weaving, the lower and middle layers of the middle layer of part C are sealed on the sides, while the upper and middle layers are not sealed on the sides).

[0033] The fabric wristband of this invention is designed based on the following principles:

[0034] The pattern control diagram regulates the up-and-down movement of the heddle frames. Based on the required number of layers in the wristband area and the heddle threading method, the corresponding heddle frames are designed to lift, and different layers of weft yarns are woven in sequentially. According to the deformation requirements of the wristband's functional areas, warp yarns with different tensile properties are arranged accordingly to achieve different tensile properties in different layers.

[0035] The binding structure on both sides of the wristband and the structure of each layer are controlled by different sequence heald frames. The heald frames of the corresponding structures are raised at the corresponding positions. By selecting the heald frames and structure patterns corresponding to the fabric layers, the order of weft yarn introduction can be freely selected, and the pattern patterns of different layers are arranged at regular intervals to achieve cross-weaving of different layers.

[0036] When selecting warp yarns, depending on the requirements of the wristband device, elastic yarns are threaded into the corresponding heald frames for fabric layers that require warp deformation; conversely, non-elastic yarns are threaded in. Weft yarns need to be woven in according to the actual fabric layers to achieve differentiated weaving of electrodes in functional areas.

[0037] Airbags, air pumps, and processors can be embedded during the weaving process to prevent components from shifting during wear and movement.

[0038] The fabric wristband manufacturing process, which integrates pressure sensing and flexible airflow drive, includes:

[0039] Fabrication of integrated components for airbags, air pumps, and processors; weaving of wristbands, according to... Figure 3 The integrated element is embedded as shown; a sponge pressure sensor mixed powder is prepared and filled into the sensor cavity layer reserved in the wristband, then hot-pressed and dried, impregnated to remove NaCl, and then dried again.

[0040] Example 1: An integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive. When threading the heddles, the first six heddles are threaded with nylon yarn, and the seventh to tenth heddles are threaded with nylon high-elastic yarn. The threading sequence is: first, the first six heddles are threaded with nylon yarn; the seventh to tenth heddles with nylon high-elastic yarn; then, the third to sixth heddles are threaded with nylon yarn; then, the seventh to tenth heddles with nylon high-elastic yarn; repeating the sequence of the third to sixth heddles threaded with nylon yarn, and the seventh to tenth heddles with nylon high-elastic yarn, until the last cycle; repeating the sequence of the third to sixth heddles threaded with nylon yarn, the seventh to tenth heddles with nylon high-elastic yarn, the third and fourth heddles threaded with nylon yarn, and the first and second heddles threaded with nylon yarn. The wristband width is 2.5cm. Two threads are threaded into each reed. Before weaving, adjust the tension of the elastic and non-elastic yarns in the warp. The non-elastic yarns maintain a larger tension while the elastic yarns are almost unaffected by tension, thus maintaining a fluffy state.

[0041] The weaving process follows the sequence E, D, C, B, A. In section E, one nylon high-elastic yarn is introduced as the weft yarn. In section D, one more nylon yarn is introduced. The nylon high-elastic yarn is used for the upper layer, and the nylon yarn for the lower layer, repeating the cycle of weaving the lower layer first, then the upper layer. In section C, the nylon yarn from the previous process is used for the lower layer, one silver-plated conductive yarn is introduced for the middle layer, and then another silver-plated conductive yarn is introduced for the upper layer, repeating the cycle of lower, middle, and upper layers. In section B, the nylon yarn from the previous process is used for the lower layer, and one nylon high-elastic yarn is introduced for the upper layer, repeating the cycle of weaving the lower layer first, then the upper layer. In section A, the nylon yarn and nylon high-elastic yarn from the previous process are combined and woven into a single weft yarn.

[0042] The total length of the wristband is 21cm, with the airbag-sensor composite area being 2.5cm, the tube area being 9.5cm, and the ties being 9.0cm.

[0043] The airbag, air pump, and processor are embedded inside the wristband during the weaving process.

[0044] After the wristband is removed from the machine, sensor filler is inserted into the sensor portion of the airbag-sensor composite area, and then it is hot-pressed at 90℃ for 30 minutes in a 1cm×1cm×0.3cm mold to cure. The airbag-sensor composite area of ​​the wristband is then immersed and washed in deionized water at 50℃ for 12 hours, and then dried at room temperature for 24 hours.

[0045] Example 2: The difference between this example and Example 1 lies in the different ratios of PDMS, NaCl, and rGO in the sponge pressure sensor. Based on Example 1, the ratio of NaCl to PDMS is increased, resulting in increased porosity and decreased compressive strength of the sponge matrix; simultaneously, the rGO content is appropriately adjusted to regulate the sponge resistance, thereby obtaining pressure sensing performance with different sensitivities. The remaining preparation steps and process conditions are the same as in Example 1.

[0046] Example 3: The difference between this example and Example 1 lies in the different size configurations of the functional areas of the wristband. Based on actual wearing requirements, the airbag-sensor composite area can be adjusted to 3.0cm, the tube area to 8.5cm, and the strap area to 9.5cm, while the total wristband length remains unchanged at 21cm. The weaving process parameters for each area are the same as in Example 1.

[0047] Example 4: The difference between this example and Example 1 lies in the design of the air pump drive voltage. By designing different DC voltages to control the output airflow of the air pump, the inflation height of the airbag is controlled. Based on Example 1, increasing the DC voltage can increase the inflation height of the airbag, achieving flexible control over the degree of airbag inflation. The remaining preparation steps and process conditions are the same as in Example 1.

[0048] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An integrated fabric wristband that combines highly integrated flexible pressure sensing and rigid-flexible coupled airflow drive, characterized in that, The fabric wristband is a variable multilayer wristband containing multiple device units, including a flexible pressure sensing unit, a rigid-flexible coupling airflow driving unit, and a fabric matrix. The flexible pressure sensing unit is a sponge pressure sensor, which is prepared by mixing polydimethylsiloxane, reduced graphene oxide and sodium chloride, and uses conductive yarn woven into the wristband as the electrode layer of the sponge pressure sensor. The rigid-flexible coupling airflow drive unit includes a thin-film flexible airbag, a rigid air pump, and a signal processor. The fabric matrix includes a single-layer tie area, a two-layer-three-layer-two-layer airbag-sensor composite area that is sealed only on both sides of the airbag, and a two-layer tube area; the variable multi-layer wristband achieves multi-layer variation through a fabric structure design that alternates between elastic and non-elastic warp and weft yarns and plain weave, and embeds the thin-film flexible airbag, rigid air pump and signal processor inside the wristband during weaving.

2. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 1, characterized in that, The sponge pressure sensor controls its mechanical and electrical properties by changing the ratio of polydimethylsiloxane, sodium chloride, and reduced graphene oxide; increasing the ratio of sodium chloride to polydimethylsiloxane increases the porosity of the sponge matrix and reduces the compressive strength, while increasing the content of reduced graphene oxide reduces the sponge resistance; the size of the sponge pressure sensor is controlled by using templates of different sizes.

3. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 1, characterized in that, The upper and lower layers of the film-type flexible airbag are polydimethylsiloxane films, and the middle support layer is a mixture of polydimethylsiloxane and silica. The film-type flexible airbag is connected to a capillary tube and is formed by hot pressing at 90°C for 30 minutes. The air pump is a miniature air pump, and the air pump output flow rate is controlled by designing different DC voltages to control the airbag inflation height. The higher the voltage, the higher the airbag inflation height. The signal processor includes a charging port and a Bluetooth transmission module.

4. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 1, characterized in that, In the warp configuration of the variable multilayer wristband, elastic yarns are arranged in the two-layer structure on the skin side and in the upper and lower electrode layers of the sensor in the three-layer structure, while the rest are non-elastic yarns. In the weft configuration of the variable multilayer wristband, conductive yarns are introduced only in the upper and lower layers of the sensor in the three-layer structure, while the rest are non-elastic yarns. This achieves the following: the single-layer and double-layer parts are not stretchable, one side of the airbag is not stretchable and deformable while the other side is stretchable and deformable, and both the upper and lower layers of the sponge sensor are stretchable and deformable.

5. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 1, characterized in that, The fabric wristband is constructed using a forward threading method, with the first and second heddles distributed to the consolidation structures on both sides, the third to sixth heddles distributed to the non-elastic areas, and the seventh to tenth heddles distributed to the elastic yarn areas, for a total of 10 heddles. Nylon yarn is threaded through the first 6 heddles, and nylon high-elastic yarn is threaded through the last 4 heddles, with each reed threaded twice.

6. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 1, characterized in that, Based on the wristband's structure, the tube area corresponds to section A, the airbag-sensor composite area corresponds to sections B, C, and D, and the strap area corresponds to section E. The weaving proceeds in the order of E, D, C, B, and A. In section E, the warp yarns alternate between elastic and non-elastic yarns, while the weft yarns are elastic. In section D, the upper layer consists of elastic warp and weft yarns, while the lower layer consists of non-elastic warp and weft yarns. In section C, the upper layer consists of elastic warp yarns and conductive weft yarns, the middle layer consists of elastic warp yarns and conductive weft yarns, and the lower layer consists of non-elastic warp and weft yarns. The warp and weft yarns in section B are the same as in section D. In section A, the upper layer consists of elastic warp yarns and a mixture of elastic and non-elastic weft yarns, while the lower layer consists of non-elastic warp yarns and a mixture of elastic and non-elastic weft yarns. Each layer is weft-skipped by one yarn in the weaving sequence, meaning that each layer introduces one yarn before moving on to the next layer.

7. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 6, characterized in that, Parts A, B, and D are sealed on both sides, while part C is sealed only on the sides of the upper and lower layers of fabric of the airbag.

8. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 1, characterized in that, The fabric wristband manufacturing process includes: preparing a thin-film flexible airbag, an integrated element of an air pump and a signal processor; weaving the wristband, embedding the integrated element inside the wristband during weaving; preparing a mixed powder of a sponge pressure sensor, filling the mixed powder into the sensor cavity layer reserved in the wristband, and then hot-pressing and drying, impregnating to remove sodium chloride, and then drying again to form the final product.

9. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 8, characterized in that, After the mixed powder of the sponge pressure sensor is filled into the sensor cavity layer, it is hot-pressed at 90°C for 30 minutes to solidify and form the shape; the airbag-sensor composite area of ​​the wristband is immersed and washed in deionized water at 50°C for 12 hours, and then dried at room temperature for 24 hours.

10. The integrated fabric wristband with highly integrated flexible pressure sensing and rigid-flexible coupling airflow drive according to claim 1, characterized in that, The total length of the wristband is 21cm, the airbag-sensor composite area is 2.5cm, the tube area is 9.5cm, the lacing area is 9.0cm, and the wristband width is 2.5cm.

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