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CN-121971210-A - Self-powered sports protective equipment based on composite energy collection and intelligent scheduling

CN121971210ACN 121971210 ACN121971210 ACN 121971210ACN-121971210-A

Abstract

The invention discloses a self-powered sports protective equipment based on composite energy collection and intelligent scheduling, and belongs to the technical field of wearable equipment and energy collection. The brace includes a flexible substrate, a composite energy harvesting module, an energy management circuit, a customizable functional module, and an intelligent control unit. The composite energy collecting module is mainly a flexible temperature difference generating unit, efficiently captures the temperature difference between the skin and the environment at the joint part of the human body during movement and converts the temperature difference into electric energy, and can integrate piezoelectric or triboelectric nano generators to capture movement mechanical energy, thus forming a thermoelectric-mechano-electric composite energy source. The intelligent protection device solves the problem that the traditional intelligent protection device depends on an external power supply, can adapt to multiple requirements through a modularized design, supports the construction of a joint health digital model based on continuously collected data, and realizes the jump from intelligent protection to a personal motion health management platform.

Inventors

  • SHI JIA
  • ZHANG XUAN

Assignees

  • 苏州科技大学

Dates

Publication Date
20260505
Application Date
20260212

Claims (10)

  1. 1. The self-powered sports protective equipment based on composite energy collection and intelligent scheduling is characterized by comprising a flexible substrate (1), a composite energy collection module (2), an energy management circuit (3), a functional module (4) and an intelligent control unit (5); The flexible matrix (1) is suitable for being worn on the joint part of a human body; The composite energy collecting module (2) is integrated on the flexible substrate (1), the composite energy collecting module (2) comprises a flexible thermoelectric generation unit, wherein the flexible thermoelectric generation unit is used for generating an electric energy flexible thermoelectric generation unit by utilizing the temperature difference between the skin of the joint part of the human body and the external environment, and the flexible thermoelectric generation unit is provided with a flexible structure, a heat absorption end and a heat release end which are attached to the curved surface of the joint of the human body, and the heat absorption end and the heat release end are respectively provided with a heat conduction enhancement structure and a heat release enhancement structure; The energy management circuit (3) is electrically connected with the composite energy collection module (2) and is used for collecting, stabilizing voltage, storing and managing the generated electric energy; the functional module (4) is electrically connected with the energy management circuit (3) and is driven by the electric energy generated by the composite energy collection module (2); The intelligent control unit (5) comprises a microprocessor, and the microprocessor is connected with the energy management circuit (3) and the functional module (4) and is used for executing energy sensing scheduling and system function control.
  2. 2. The self-powered sports protective clothing based on composite energy collection and intelligent scheduling according to claim 1 is characterized in that the flexible substrate (1) can be designed in a multi-layer composite structure, a standardized module interface is arranged on the flexible substrate (1), the functional module (4) is an independent pluggable module, the functional module is connected with the energy management circuit (3) and the intelligent control unit (5) through the module interface, the module interface is designed by adopting a magnetic sealing contact or a waterproof connector, so that the environmental tightness during plugging connection is ensured, the protective clothing is in a specific form of knee pad, elbow pad, wrist pad or ankle pad, and the flexible substrate (1) is in an elastic binding band or sleeve type structure; The flexible substrate (1) is packaged by adopting a waterproof breathable film between layers, and is combined with an edge sealing process, wherein all external electric interfaces of the flexible substrate (1) are designed by adopting magnetic sealing contacts or waterproof connectors.
  3. 3. The self-powered sports protective equipment based on composite energy collection and intelligent scheduling according to claim 1 is characterized in that the composite energy collection module (2) can also take a flexible thermoelectric generation unit as a core to integrate a mechanical energy collection unit to form a composite energy system, wherein the mechanical energy collection unit is a piezoelectric fiber or a triboelectric nano-generator integrated in the flexible matrix (1) and is used for converting mechanical energy during human body movement into electric energy.
  4. 4. A self-powered sports protective equipment based on composite energy collection and intelligent scheduling according to claim 3, wherein the flexible substrate (1) comprises an inner liner layer, an intermediate structural layer and an outer coating layer, the heat absorbing end of the flexible thermoelectric generation unit is combined with the inner liner layer through a high heat conduction flexible material to be close to the skin, and the heat releasing end of the flexible thermoelectric generation unit is combined with the outer coating layer through a heat dissipation structure to face the environment; The flexible thermoelectric power generation unit adopts a flexible film type or flexible sheet structure, comprises a thermopile array formed by connecting a plurality of flexible thermoelectric units in series and/or in parallel, wherein each thermoelectric unit comprises a P-type thermoelectric arm and an N-type thermoelectric arm and is connected through a flexible conductive connecting sheet, a thermoelectric material can be Bi2Te 3-based flexible composite material, the flexible thermoelectric power generation unit is integrally packaged in a flexible insulating film, the heat absorption end of the flexible thermoelectric power generation unit is tightly contacted with an inner liner of a flexible substrate (1) through a high heat conduction interface material to absorb heat efficiently, the heat release end of the flexible thermoelectric power generation unit is connected with a passive heat dissipation structure, an active heat dissipation element controlled by a microprocessor can be further integrated to form a self-adaptive thermal management subsystem, and the system can actively regulate and control the heat dissipation intensity of a cold end through temperature feedback, thereby ensuring comfort and maximizing and maintaining the power generation temperature difference.
  5. 5. The self-powered sports protective clothing based on composite energy collection and intelligent scheduling according to claim 4, wherein the heat dissipation structure comprises at least one of a flexible heat dissipation sheet, a micro heat dissipation fin and a high heat conduction and ventilation fabric layer arranged at the heat dissipation end, the heat dissipation structure further comprises an active heat dissipation element controlled by the microprocessor, the active heat dissipation element is a micro fan or a micro thermoelectric cooling sheet, and the microprocessor controls the working state of the micro fan or the micro thermoelectric cooling sheet according to temperature sensor data and power generation information so as to actively adjust heat dissipation intensity.
  6. 6. The self-powered sports protective equipment based on composite energy collection and intelligent scheduling according to claim 4, wherein the area, in which the inner liner layer of the flexible substrate (1) is in contact with skin, is provided with ventilation holes or is made of breathable elastic fabrics, the outer coating layer of the flexible substrate (1) is provided with a hollowed-out structure for promoting ventilation, waterproof and breathable films are adopted among the inner liner layer, the middle structure layer and the outer coating layer of the flexible substrate (1) to encapsulate, and a sealing process is adopted to treat edges and interfaces, so that sweat and water resistance of an internal circuit are ensured, and water vapor is allowed to be discharged.
  7. 7. The self-powered sports protective equipment based on composite energy collection and intelligent scheduling according to claim 1 is characterized in that the energy management circuit (3) comprises a DC-DC boosting and stabilizing circuit, an energy storage element and a power management chip, wherein the energy storage element is a super capacitor or a micro lithium polymer battery, and the energy management circuit (3) supports multiple inputs and has a maximum power point tracking function.
  8. 8. The self-powered sports protective equipment based on composite energy collection and intelligent scheduling according to claim 1 is characterized in that the functional module (4) adopts a modularized design concept, the functional module (4) comprises at least one of a muscle stimulation relaxing unit, a sports monitoring unit and a physiological monitoring unit, and the sports monitoring unit comprises an attitude sensor and/or a bioelectric sensor.
  9. 9. The self-powered athletic brace based on composite energy collection and intelligent scheduling of claim 1, wherein the intelligent control unit (5) has built-in energy-aware scheduling algorithm and fail-safe mechanism, and when detecting that the voltage of the energy storage element is lower than the set extremely low threshold, automatically enters a data security mode, wherein unnecessary operation is suspended, untransmitted monitoring data is written from the volatile memory to the nonvolatile memory, and the system state is saved, so that the data can be restored after power failure; The intelligent control unit (5) has self-calibration and learning capabilities, automatically collects basic physiological and environmental parameters in a user resting state when worn for the first time, learns a user motion mode and an energy generation rule in long-term use, and dynamically adjusts a scheduling algorithm threshold value to realize personalized energy efficiency optimization.
  10. 10. The self-powered athletic brace of claim 1, wherein the brace further comprises a user status indication module, a wireless communication module; the user state indication module is a low-power consumption LED array or an electronic ink screen integrated on the surface of the flexible substrate (1) and is used for displaying energy states, working modes or sports data summaries; The microprocessor of the intelligent control unit (5) is used for processing the data of the motion monitoring unit and the physiological monitoring unit and sending the data to external equipment or a cloud platform through the wireless communication module; the wireless communication module supports the function of multi-equipment direct connection or ad hoc network, realizes data synchronization and collaborative calculation among a plurality of protectors, jointly generates gait analysis and motion symmetry advanced indexes, and uniformly reports data by a main node.

Description

Self-powered sports protective equipment based on composite energy collection and intelligent scheduling Technical Field The invention belongs to the technical field of wearable equipment and energy collection, and particularly relates to a self-powered sports protective tool based on composite energy collection and intelligent scheduling. Background Along with popularization of body building and sports science of the whole people, the intelligent sports protective equipment is increasingly widely applied. The traditional intelligent sports protective equipment is often integrated with functional modules such as vibration massage, electric stimulation relaxation, sports posture monitoring, biological signal acquisition and the like so as to provide protection, recovery and training guidance. However, these electronic functional modules typically require electrical drive, and currently rely primarily on built-in rechargeable or disposable battery power. The battery has the advantages of increasing the weight and the volume of the protective clothing, affecting wearing comfort and exercise flexibility, being limited in capacity, needing frequent charging or replacement, being inconvenient especially in long-time outdoor exercises or traveling and possibly causing function interruption, and being environment-friendly in recycling treatment. In addition, for application scenarios requiring long-term, continuous monitoring of physiological or exercise data, limited battery life becomes a major technical bottleneck. Energy harvesting technology is becoming a research hotspot for wearable device energy supply problems. The human body can generate various forms of biological energy such as kinetic energy, heat energy, chemical energy and the like when in motion. Wherein the joint area is usually at a higher temperature than the ambient temperature due to continuous work of the muscles and blood circulation changes, and particularly during exercise a significant and relatively stable temperature difference is generated. The seebeck effect (thermoelectric effect) provides a theoretical basis for the direct conversion of this temperature difference into electrical energy. At present, although the thermoelectric generation technology is mature and applied in the field of industrial waste heat recovery, the transplantation of the thermoelectric generation technology in the wearable field faces the problems of poor fit between a rigid device and a curved surface of a human body, insufficient flexibility, low temperature difference utilization efficiency and the like, so that the output power is unstable, and the functional integration with a sports protective tool is difficult to realize. Research shows that under the condition of typical human body temperature difference (delta T=10 ℃), the output power density of the conventional flexible thermoelectric device is generally lower than 1 mu W/cm < 2 >, and the conventional flexible thermoelectric device is difficult to keep stable electric output while adapting to dynamic bending of a sports protective tool, and cannot meet the continuous energy supply requirements of functional modules (power consumption is generally in milliwatt level) such as conventional sensing, microstimulation and the like. In particular, for a specific application scenario of the sports protective equipment, a self-maintenance system which can efficiently capture the local temperature difference of joints, has good flexibility comfort and can reliably supply power for a built-in functional module is designed, and no mature solution exists yet. Furthermore, with the refinement of exercise health management, long-term, continuous and multidimensional joint movement and physiological data are of great significance for constructing individual exclusive joint health digital models or predicting exercise injury risks. This requires that the data acquisition device be capable of long-term, noninductive operation, placing greater demands on the sustainability of the device's power supply. In addition, the existing equipment often lacks a data outage security mechanism, has insufficient environmental adaptability, weak coordination capability among the equipment and limited interactivity with a health management system, and lacks personalized learning and calibration capability, so that the reliability and the intelligence level of the existing equipment in actual sports and rehabilitation scenes are limited. Therefore, there is a need for an innovative exercise protection tool that can achieve stable self-energy and support intelligent health management, and has high reliability, strong environmental adaptability, multi-device collaboration, active interaction and self-learning capabilities. The defects of the prior art are that: 1) The problem of uncontrollable energy supply is that the traditional intelligent protective equipment depends on an external battery, has the problems of heavy weight, frequen