Intelligent t-shirt based on multi-modal sensing and structural optimization

Abstract

The utility model discloses a kind of intelligent T-shirt based on multi-modal sensing and structure optimization, it includes T-shirt body, flexible IMU module, flexible textile electrode, yarn sensing band and main control module, flexible IMU module is carried on the T-shirt body to gather user's posture information;Flexible textile electrode is located in the chest area of the T-shirt body to gather user heart rate information;Yarn sensing band is located in the chest circumference position and abdominal position of the T-shirt body to gather user breathing information;Main control module includes main control body and connecting seat, connecting seat is set on T-shirt body, and is equipped with electric connection plug rod, electric connection plug rod is inserted in main control body.The utility model can be from user's posture information, heart rate information and breathing information multiple modal collection user data, generate more comprehensive, accurate user monitoring data;Meanwhile, each sensing module of the utility model uses flexible module, improve wearing comfort.

Description

Technical Field

[0001] This utility model relates to the field of smart wearable technology, specifically to a smart T-shirt based on multimodal sensing and structural optimization. Background Technology

[0002] Most existing smart sportswear collects some physiological data through a single heart rate belt or wristband, but it has the following problems: the collected data is limited, and it cannot collect multi-dimensional information such as exercise posture, breathing, and heart rate at the same time, so the data value is limited; the wearing comfort is insufficient, the sensor or electrode arrangement is rigid, which affects the elasticity and breathability of the clothing, easily causes a feeling of pressure, and the signal transmission efficiency is poor. Utility Model Content

[0003] The purpose of this invention is to provide a smart T-shirt based on multimodal sensing and structural optimization, which aims to improve the problems of existing smart sportswear such as single data collection, poor wearing comfort, and poor signal transmission efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A smart T-shirt based on multimodal sensing and structural optimization includes a T-shirt body, a flexible IMU module, a flexible textile electrode, a yarn sensing strip, and a main control module.

[0006] The flexible IMU module is mounted on the T-shirt body to collect the user's posture information; the flexible textile electrode is located in the chest area of ​​the T-shirt body to collect the user's heart rate information; the yarn sensing strip is located at the chest and abdomen of the T-shirt body to collect the user's breathing information.

[0007] The main control module includes a main control body and a connector. The connector is mounted on the T-shirt body and has an electrical connection plug. The electrical connection plug is inserted into the main control body. The flexible IMU module, flexible textile electrode, and yarn sensing strip are electrically connected to the main control body through the electrical connection plug. The flexible IMU module, flexible textile electrode, and yarn sensing strip transmit the posture information, heart rate information, and breathing information to the main control body, respectively.

[0008] Furthermore, the chest and abdominal areas of the T-shirt body are made of elastic fiber knit, and the shoulder and armpit areas are provided with breathable zones.

[0009] Furthermore, the flexible IMU module, flexible textile electrode, and yarn sensing strip converge to the connection area via conductive yarn, and the connection seat is disposed within the connection area.

[0010] Furthermore, the connector has an installation channel, and an installation socket is fixed on the inner side of the connector. The installation socket is located at the inner opening of the installation channel. One end of the electrical connection rod is inserted into the installation socket, and the other end of the electrical connection rod passes through the installation socket and the installation channel to connect to the main control body.

[0011] The end of the conductive yarn is connected to a plug, which is plugged into a mounting socket.

[0012] Furthermore, the connection area is provided with a connection seat, and the connection seat is provided with a plurality of electrical connection plugs. The conductive yarn is electrically connected to one end of the electrical connection plug, and the other end of the electrical connection plug is inserted into the main control module and electrically connected to the main control module.

[0013] Furthermore, the T-shirt body includes an outer layer, a sensing layer, and a skin-friendly layer. The flexible IMU module, flexible textile electrode, yarn sensing strip, and conductive yarn are disposed in the sensing area of ​​the sensing layer. The moisture permeability of the outer layer, sensing layer, and skin-friendly layer corresponding to the sensing area is ≥5000g / m². 2 ·24h.

[0014] Furthermore, the outer layer is a hydrophilic polyester and spandex blended fabric, and the skin-friendly layer is an antibacterial TPU nanofiber membrane composite fabric.

[0015] Furthermore, the conductive yarn is laid in a serpentine / spiral pattern.

[0016] Furthermore, the main control body includes a housing and a circuit board disposed inside the housing. The circuit board is provided with a connection interface, and the housing is provided with a socket corresponding to the connection interface. The electrical connection plug passes through the socket and the connection interface and is electrically connected to the circuit board.

[0017] Furthermore, an isolation ring is provided inside the socket, the inner diameter of the isolation ring is smaller than the diameter of the electrical connection plug, and the electrical connection plug is interference-fitted into the inner ring surface of the isolation ring.

[0018] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] 1. This utility model integrates an IMU module, textile electrodes, and yarn sensors into the T-shirt body, which can collect user data from multiple modalities such as user posture information, heart rate information, and breathing information to generate more comprehensive and accurate user monitoring data; at the same time, the sensing modules of this utility model adopt flexible modules, which improves wearing comfort.

[0020] 2. This utility model adopts a detachable snap-on structure for the main control module, which is convenient for washing and maintenance.

[0021] 3. This utility model adopts a sandwich composite structure to achieve seamless implantation of the sensing layer, improves comfort, effectively protects the sensing layer, and extends its service life; at the same time, it has good moisture permeability in the position corresponding to the sensing area, preventing sensor impedance abnormalities caused by sweat, etc., and improving the accuracy of data acquisition.

[0022] 4. This utility model has an outer layer that is hydrophilic and wicks away sweat, a middle layer that is sensory and conductive, and an inner layer that is antibacterial and skin-friendly, thus achieving the functions of moisture permeability, antibacterial properties, and electrical conductivity.

[0023] 5. The conductive yarn of this utility model is laid in a serpentine / spiral pattern, which takes into account both the stretchability required by the T-shirt and the stability required by the electrical system.

[0024] 6. This utility model uses elastic fiber weaving in the chest and abdominal areas of the T-shirt body, so that the electrodes or sensors are close to the skin, improving the accuracy of heart rate and breathing data; the shoulder and armpit areas are provided with breathable areas, taking into account comfort. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the smart T-shirt described in this utility model;

[0026] Figure 2 This is a schematic diagram of the sensing layer of the smart T-shirt described in this utility model;

[0027] Figure 3 This is a schematic diagram of the main control module assembly of this utility model;

[0028] Figure 4 This is a schematic diagram of the fabric layers of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. T-shirt body; 110. Outer layer; 120. Sensing layer; 130. Skin-friendly layer; 140. Elastic fiber; 150. Breathable area;

[0031] 121. Flexible IMU module; 122. Flexible textile electrode; 123. Yarn sensing strip; 124. Conductive yarn; 125. Connection area; 126. Plug;

[0032] 200. Main control module; 210. Main control body; 211. Housing; 212. Socket; 213. Circuit board; 214. Isolation ring; 220. Connector; 221. Mounting channel; 230. Mounting socket; 231. Electrical connection rod; 232. Pad; 233. Mounting hole. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0034] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0036] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Example

[0038] Please refer to Figure 1 and Figure 2As shown, this utility model discloses a smart T-shirt based on multimodal sensing and structural optimization, which includes a T-shirt body 100, a flexible IMU module 121, a flexible textile electrode 122, a yarn sensing strip 123, and a main control module 200. The flexible IMU module 121 is mounted on the T-shirt body 100 and is used to collect the user's posture information. The flexible textile electrode 122 is located in the chest area of ​​the T-shirt body 100 to collect the user's heart rate information. The yarn sensing strip 123 is located at the chest and abdomen of the T-shirt body 100 to collect the user's breathing information. The main control module 200 includes a main control body 210 and a connector 220. The connector 220 is mounted on the T-shirt body 100 and has an electrical connection plug 231, which is inserted into the main control body 210. The flexible IMU module 121, flexible textile electrode 122, and yarn sensing strip 123 are electrically connected to the main control body 210 via electrical connection plug 231. The flexible IMU module 121, flexible textile electrode 122, and yarn sensing strip 123 transmit attitude information, heart rate information, and respiratory information to the main control body 210, respectively, so that the main control module 200 can generate user monitoring data.

[0039] The flexible IMU module 121 refers to an inertial measurement unit based on a flexible circuit board, such as an accelerometer and gyroscope integrated on a polyimide substrate. Its flexibility allows it to conform to the curves of the human body without affecting limb movement, while simultaneously collecting acceleration and angular velocity information from the mounting area to obtain attitude information. The flexible textile electrode 122 refers to a conductive fabric woven from silver-plated fibers, forming an electrode array using plain weave or similar processes, and acquiring the user's heart rate information via ECG (electrocardiogram) signal acquisition. The yarn sensing strip 123 refers to a strain sensor composed of conductive fibers wrapped in elastic yarn, such as a spiral winding structure, which calculates respiratory rate and depth by detecting the expansion amplitude of the chest and abdomen. The main control module 200 refers to a microcontroller with multi-channel signal processing capabilities, specifically using a Bluetooth Low Energy chip to achieve wireless data transmission and aligning multi-source sensor data via timestamps. The sensor components are existing technologies and will not be described in detail in this invention.

[0040] By collecting multiple modalities of information, including posture, heart rate, and respiration, more comprehensive and accurate user monitoring data can be generated. For example, in running training scenarios, athletes need to monitor their cardiopulmonary load and movement standardization in real time, but existing equipment cannot simultaneously collect respiratory rate, heart rate, and posture (trunk tilt angle), resulting in a lack of multidimensional data support for training effect evaluation. By assigning different computational weights to different modalities of information and normalizing them, exercise level data can be generated.

[0041] In a preferred embodiment, the flexible IMU module 121, the flexible textile electrode 122, and the yarn sensing strip 123 converge at the connection area 125 via conductive yarn 124, and the connector 220 is disposed within the connection area 125. The conductive yarn 124 refers to a flexible wire used for transmitting electrical signals, capable of adapting to clothing stretching through bending deformation, thus preventing signal transmission failure due to the breakage of rigid wires.

[0042] Please refer to Figure 4 As shown, the main control module 200 and the connection area 125 are connected via magnetic attraction or snap-fit. Magnetic attraction or snap-fit ​​connection refers to the detachable interface between the main control module 200 and the T-shirt body 100; that is, the main control body 210 and the connecting seat 220 form the aforementioned detachable interface, enabling a detachable connection between the main control body 210 and the T-shirt body 100. Specifically, the connecting seat 220 has an installation channel 221, and an installation socket 230 is fixed to the inner side of the connecting seat 220, located at the inner opening of the installation channel 221. In this embodiment, the side of the installation socket 230 has an installation hole 233 for bolts or other fasteners to lock the installation socket and the connecting seat 220 together. One end of the electrical connection rod 231 is inserted into the installation socket 230, and the other end of the electrical connection rod 231 passes through the installation socket 230 and the installation channel 221 to connect to the main control body 210. The end of the conductive yarn 124 is connected to a plug 126, which is inserted into the mounting socket 230. The mounting channel 221 makes way for the electrical connection rod 231 to pass through, and the mounting socket 230 supports the electrical connection rod 231 to ensure the stability of the electrical connection rod 231 in the plugged state. The end of the conductive yarn 124 is inserted into the mounting socket 230 through the plug 126, realizing the electrical connection between the conductive yarn 124 and the electrical connection rod 231.

[0043] Specifically, the main control unit 210 includes a housing 211 and a circuit board 213 disposed inside the housing 211. The aforementioned microcontroller with multi-channel signal processing capabilities is disposed on the circuit board 213. The circuit board 213 is provided with a connection interface, and the housing 211 is provided with a corresponding socket 212. The electrical connection plug 231 passes through the socket 212 and the connection interface and is electrically connected to the circuit board 213, realizing the electrical connection between the conductive yarn 124 and the circuit board 213. The magnetic attraction method can be used, for example, the connector 220 is a neodymium iron boron magnet connector 220, while the housing 211 is an iron housing 211, realizing a magnetically detachable connection between the two. Alternatively, a plastic snap-lock can be provided between the connector 220 and the housing 211 for mechanical locking, realizing a detachable connection between the two, ensuring electrical contact stability while achieving rapid separation. The electrical connection between the electrical connector 231 and the circuit board 213 enables the main control unit 210 to be electrically connected as soon as it is installed, reducing interface docking actions and enabling fast data transmission. Furthermore, the electrical connector 231 is in the extended state and is inserted into the interior of the main control unit 210, providing a certain limiting force to the main control unit 210 and improving the installation stability of the main control unit 210.

[0044] Furthermore, an isolation ring 214 is provided inside the socket 212. The inner diameter of the isolation ring 214 is smaller than the diameter of the electrical connection plug 231, and the electrical connection plug 231 is interference-fitted into the inner ring surface of the isolation ring 214. The isolation ring 214 isolates the electrical connection plug 231 from the housing 211, preventing the housing 211 from becoming energized and affecting the stability of the electrical connection between the electrical connection plug 231 and the circuit board 213. Furthermore, since the electrical connection plug 231 is in an interference-fit state, the isolation ring 214 applies a limiting force to the electrical connection plug 231, preventing separation between the electrical connection plug 231 and the circuit board 213 and affecting signal transmission. Furthermore, a pad 232 is provided inside the mounting socket 230. The pad 232 is fitted around the periphery of the electrical connection plug 231 and extends into the mounting channel 221 to isolate the electrical connection plug 231 and the connector 220, so as to prevent the connector 220 from being energized and affecting the electrical connection stability between the electrical connection plug 231 and the circuit board 213.

[0045] Thus, the physiological signals collected by the flexible IMU module 121, flexible textile electrode 122, and yarn sensing strip 123 are transmitted to the connection area 125 via conductive yarn 124. This connection point serves as a signal concentration node embedded in the T-shirt body 100. The main control module 200 forms a physical connection with this connection point via magnetic attraction or snap-fit, thereby establishing an electrical signal path. When it is necessary to wash the garment or replace the main control module 200, the main control module 200 can be directly detached from the connection area 125 by external force.

[0046] In a preferred embodiment, the T-shirt body 100 includes an outer layer 110, a sensing layer 120, and a skin-friendly layer 130. A flexible IMU module 121, a flexible textile electrode 122, a yarn sensing strip 123, and conductive yarns 124 are disposed in the sensing area of ​​the sensing layer 120. The moisture permeability of the outer layer 110, the sensing layer 120, and the skin-friendly layer 130 corresponding to the sensing area is ≥5000g / m². 2 ·24h.

[0047] The sensing layer 120 refers to the intermediate layer where the sensor assembly is housed. It can be implemented using knitted spacer fabric, whose three-dimensional structure provides a fixed space for the sensor while maintaining fabric elasticity. The outer layer 110 and the skin-friendly layer 130 encapsulate the sensing layer 120, making the sensor module invisible and eliminating the foreign object feeling associated with traditional rigid components. This results in a clean T-shirt appearance and also protects the sensor to some extent, extending its lifespan. A highly breathable woven structure is used in the corresponding area of ​​the sensing zone, allowing water vapor to quickly pass through the three-layer structure. Moisture permeability refers to the mass of water vapor that passes through a unit area of ​​fabric in 24 hours. This can be achieved by controlling the fabric porosity, for example, by using a gradient density weaving process to balance breathability and structural strength. Rapid moisture wicking prevents the sensing area from becoming stuffy and prone to sweat accumulation, effectively preventing sensor impedance abnormalities caused by sweat buildup and improving the accuracy of data acquisition.

[0048] In a more preferred embodiment, the outer layer 110 is made of a hydrophilic polyester and spandex blended fabric, and the skin-friendly layer 130 is made of an antibacterial TPU nanofiber membrane composite fabric.

[0049] Hydrophilic treatment refers to the chemical modification of fibers to give them moisture-wicking properties, such as by introducing hydrophilic groups into polyester molecular chains. Antibacterial TPU nanofiber membrane composite fabrics are made by electrospinning thermoplastic polyurethane materials into nanoscale fiber structures and then combining them with antibacterial agents, such as by using silver ion loading or quaternary ammonium salt grafting.

[0050] Thus, the outer layer 110 is a blend of hydrophilically treated polyester and spandex, forming a fabric base with moisture-wicking and quick-drying properties. The gaps between its fibers create a capillary effect to accelerate sweat wicking. The skin-friendly layer 130 uses a TPU nanofiber membrane composite antibacterial agent. Utilizing the nanoscale porous structure to achieve breathability, it also inhibits bacterial growth that may occur when smart T-shirts are washed less frequently than ordinary T-shirts through the slow-release effect of antibacterial components, maintaining hygienic wearing conditions.

[0051] In a more preferred embodiment, the conductive yarn 124 is arranged in a serpentine / spiral pattern. A serpentine pattern means the conductive yarn 124 is arranged in a continuously curved, wavy path, while a spiral pattern means the conductive yarn 124 is arranged in a spiral trajectory around the axis. With this arrangement, when human movement causes the fabric to stretch or twist, the conductive yarn 124 absorbs stress through geometric deformation, avoiding the limitation of rigid conductors on the elasticity of the garment and preventing the conductive path from breaking due to fabric deformation.

[0052] In a more preferred embodiment, the chest and abdominal areas of the T-shirt body 100 are woven with elastic fibers 140, and the shoulder and underarm areas are provided with breathable areas 150.

[0053] The elastic fiber 140 weaving refers to integrating elastic fiber 140 material (such as polyurethane elastic fiber 140) into the fabric structure through a weaving process. This gives the chest and abdominal areas stretchability to accommodate breathing and limb movements. Simultaneously, it allows the flexible textile electrode 122 to fit snugly against the chest, and the yarn sensing band 123 to fit snugly against the chest and abdomen, improving detection accuracy without compromising comfort. The breathable zone 150 refers to a highly breathable fabric structure in the shoulder and armpit areas, such as using mesh weaving or laser perforation technology, to improve perspiration wicking and prevent the clothing from becoming stuffy.

[0054] In a more preferred embodiment, airbags are embedded in the chest and abdominal areas of the T-shirt body 100. The airbags are miniature airbags connected to an air pump, which is also a miniature air pump and connected to the main control module 200. The main control module 200 automatically adjusts the inflation volume of the airbags in the chest and abdominal areas based on feedback signals from the flexible IMU module 121, the flexible textile electrode 122, and the yarn sensing strip 123, and automatically adjusts the tightness to ensure that the flexible textile electrode 122 remains stably fitted without causing pressure or discomfort.

[0055] Please refer to Figure 2 As shown, in a more preferred embodiment, the flexible IMU module 121 is a distributed module, which includes IMU units respectively fixed to the scapular region, the two sides of the chest cavity, and the two sides of the waist of the smart T-shirt.

[0056] With this optimized IMU layout, the user's status can be accurately monitored even when only the upper body is wearing a smart T-shirt, i.e., only the upper body is covered by smart clothing.

[0057] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A smart T-shirt based on multimodal sensing and structural optimization, characterized in that, It includes the T-shirt body, flexible IMU module, flexible textile electrode, yarn sensing strip and main control module; The flexible IMU module is mounted on the T-shirt body to collect the user's posture information; the flexible textile electrode is located in the chest area of ​​the T-shirt body to collect the user's heart rate information; the yarn sensing strip is located at the chest and abdomen of the T-shirt body to collect the user's breathing information. The T-shirt body includes an outer layer, a sensing layer and a skin-friendly layer. The flexible IMU module, flexible textile electrode and yarn sensing strip are disposed in the sensing area of ​​the sensing layer. The moisture permeability of the outer layer, sensing layer and skin-friendly layer corresponding to the sensing area is ≥5000g / m²·24h. The main control module includes a main control body and a connector. The connector is mounted on the T-shirt body and has an electrical connection plug. The electrical connection plug is inserted into the main control body. The flexible IMU module, flexible textile electrode, and yarn sensing strip are electrically connected to the main control body through the electrical connection plug. The flexible IMU module, flexible textile electrode, and yarn sensing strip transmit the posture information, heart rate information, and breathing information to the main control body, respectively.

2. The smart T-shirt as described in claim 1, characterized in that: The chest and abdomen areas of the T-shirt are made of elastic fibers, while the shoulder and armpit areas have breathable zones.

3. The smart T-shirt as described in claim 1, characterized in that: The flexible IMU module, flexible textile electrode, and yarn sensing strip converge to the connection area via conductive yarn, and the connection seat is disposed within the connection area.

4. The smart T-shirt as described in claim 3, characterized in that: The connector has an installation channel, and an installation socket is fixed on the inner side of the connector. The installation socket is located at the inner opening of the installation channel. One end of the electrical connection rod is inserted into the installation socket, and the other end of the electrical connection rod passes through the installation socket and the installation channel to connect to the main control body. The end of the conductive yarn is connected to a plug, which is plugged into a mounting socket.

5. The smart T-shirt as described in claim 1, characterized in that: The outer layer is a hydrophilic polyester and spandex blend fabric, and the skin-friendly layer is an antibacterial TPU nanofiber membrane composite fabric.

6. The smart T-shirt as described in any one of claims 3 to 4, characterized in that: The conductive yarn is laid in a serpentine / spiral pattern.

7. The smart T-shirt as described in claim 1, characterized in that: The main control unit includes a housing and a circuit board disposed inside the housing. The circuit board is provided with a connection interface, and the housing is provided with a socket corresponding to the connection interface. The electrical connection plug passes through the socket and the connection interface and is electrically connected to the circuit board.

8. The smart T-shirt as described in claim 7, characterized in that: An isolation ring is provided inside the socket. The inner diameter of the isolation ring is smaller than the diameter of the electrical connection plug. The electrical connection plug is interference-fitted into the inner ring surface of the isolation ring.

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