Underground coal mine self-adaptive temperature-supplementing and dampness-clearing wearing protection system

Abstract

The invention provides an underground coal mine self-adaptive temperature supplementing and dampness clearing wearing protection system which comprises at least one joint protection unit, and each joint protection unit comprises a protector, a temperature supplementing module, a dampness clearing module, a sensing module and a control module; wherein the protective clothing is worn on a joint part of a human body, the temperature supplementing module and the damp clearing module are respectively arranged in the protective clothing, the sensing module is arranged on one side, close to the joint part, of the protective clothing, and the sensing module is used for detecting the temperature and humidity of the joint part; the control module is used for starting the temperature supplementing module to increase the temperature of the joint part when the temperature of the joint part is smaller than a first preset temperature, and starting the dampness clearing module to reduce the humidity of the joint part when the humidity of the joint part is larger than a first preset humidity. According to the coal mine underground self-adaptive temperature supplementing and dampness removing wearing protection system, the underground high-humidity environment is effectively dealt with, and moisture damage to the joint parts is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of protective equipment for underground coal mine operations, and in particular to an adaptive temperature-compensating and moisture-reducing wearable protective system for underground coal mine operations. Background Technology

[0002] In the coal mining industry, the working conditions at the coal face are extremely harsh, posing a serious threat to the health of workers. During operation, coal mining machines typically employ spray dust suppression measures to effectively control coal dust. However, this necessary dust control method has created new problems in the downwind tunnels of the mining machine. Due to the extensive use of spray dust suppression, the humidity in these downwind tunnels increases significantly. The humid air permeates the working area for extended periods, making the environment cold and damp. In such a high-humidity environment, workers are constantly exposed to the moisture, causing joint pain, swelling, and other symptoms. This not only affects their daily work ability and reduces work efficiency but also seriously impacts their quality of life.

[0003] Currently available protective equipment can only provide basic physical protection and cannot effectively cope with the damage to the joints of the human body caused by the high humidity environment underground, thus failing to meet the needs of use. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide an adaptive temperature and moisture-reducing wearable protective system for underground coal mines.

[0006] To achieve the above objectives, this disclosure provides an adaptive temperature-compensating and moisture-reducing wearable protective system for underground coal mines, comprising: at least one joint protection unit, wherein the joint protection unit includes: a protective garment, a temperature-compensating module, a moisture-reducing module, a sensing module, and a control module; wherein the protective garment is worn on the joint area of ​​the human body, and the temperature-compensating module and the moisture-reducing module are respectively disposed within the protective garment, and the sensing module is disposed on the side of the protective garment near the joint area, the sensing module being used to detect the temperature and humidity of the joint area; the control module is used to activate the temperature-compensating module to raise the temperature of the joint area when the temperature of the joint area is lower than a first preset temperature, and to activate the moisture-reducing module to lower the humidity of the joint area when the humidity of the joint area is higher than a first preset humidity.

[0007] Optionally, the temperature compensation module includes: a graphene flexible electrothermal film and a pulse width modulation (PWM) module; wherein, the graphene flexible electrothermal film is disposed on the side of the protective gear near the joint, and the power input terminal of the PWM module is connected to the power output terminal of the power supply unit, and the power output terminal of the PWM module is connected to the power input terminal of the graphene flexible electrothermal film; the signal output terminal of the control module is connected to the signal input terminal of the PWM module, and the control module is used to control the PWM module to activate the graphene flexible electrothermal film when the temperature of the joint is lower than a first preset temperature, and to linearly adjust the power of the graphene flexible electrothermal film according to the temperature difference between the joint temperature and the first preset temperature.

[0008] Optionally, the dehumidification module includes: three-dimensional honeycomb moisture-absorbing fibers and a circulation pump; wherein, the three-dimensional honeycomb moisture-absorbing fibers are located on the side of the protective garment near the joint, and the air inlet of the three-dimensional honeycomb moisture-absorbing fibers is located on the side of the three-dimensional honeycomb moisture-absorbing fibers near the joint, and the air outlet of the three-dimensional honeycomb moisture-absorbing fibers is located on the side of the three-dimensional honeycomb moisture-absorbing fibers away from the joint; the air inlet of the circulation pump is connected to the air outlet of the three-dimensional honeycomb moisture-absorbing fibers, and the air outlet of the circulation pump extends out of the protective garment; the signal output terminal of the control module is connected to the signal input terminal of the circulation pump, and the control module is used to start the circulation pump when the humidity of the joint is greater than a first preset humidity.

[0009] Optionally, the dehumidification module further includes a positive temperature coefficient (PTC) heating module, wherein the PTC heating module is disposed inside the protective gear, and the heating end of the PTC heating module is disposed on the three-dimensional honeycomb moisture-absorbing fiber; wherein the signal output terminal of the control module is connected to the signal input terminal of the PTC heating module, and the control module is used to activate the PTC heating module when the humidity of the joint area is greater than a first preset humidity.

[0010] Optionally, the dehumidification module further includes: an indicator module, which is disposed on the protective gear, and the signal input terminal of the indicator module is connected to the signal output terminal of the control module; wherein, the control module is used to control the indicator module to issue a first indicator message when the humidity of the joint area is not greater than a first preset humidity, to control the indicator module to issue a second indicator message when the humidity of the joint area is greater than the first preset humidity, and to control the indicator module to issue a third indicator message when the humidity of the joint area is greater than the second preset humidity for a preset time; wherein the second preset humidity is greater than the first preset humidity.

[0011] Optionally, the system further includes: a power supply unit worn on the human body, wherein the power output terminal of the power supply unit is connected to the power input terminal of the heating module, the power input terminal of the dehumidification module, the power input terminal of the sensing module, and the power input terminal of the control module; and multiple power failure protection switches, wherein the multiple power failure protection switches are respectively disposed between the multiple power output terminals of the power supply unit and the multiple power input terminals of the joint protection unit, wherein the first terminal of the power failure protection switch is connected to the power output terminal of the power supply unit, and the second terminal of the power failure protection switch is connected to the power input terminal of the heating module, the power input terminal of the dehumidification module, the power input terminal of the sensing module, and the power input terminal of the control module; wherein the signal output terminal of the control module is connected to the signal input terminal of the power failure protection switch, and the control module is used to control the corresponding power failure protection switch to turn off when the temperature of the joint is not lower than a second preset temperature.

[0012] Optionally, the power supply unit includes: a waist belt worn on the waist of a person; a lithium battery pack detachably mounted on the waist belt, with the power output terminal of the lithium battery pack connected to the first terminal of the power failure protection switch; and multiple thin-film solar cells respectively mounted on multiple protective gears, with the power output terminal of the thin-film solar cells connected to the first terminal of the power failure protection switch.

[0013] Optionally, the sensing module is also used to detect the pressure between the protective gear and the joint, and the control module is used to control the power failure protection switch to turn off when the pressure between the protective gear and the joint exceeds a preset pressure range.

[0014] Optionally, the protective gear includes: an aramid fiber layer and an aerogel composite heat insulation layer; wherein the aramid fiber layer is coated with a hydrophobic nano-coating, and the aramid fiber layer is disposed on the side of the aerogel composite heat insulation layer away from the joint, and the heat replenishment module, the dehumidification module and the sensing module are respectively disposed on the side of the aerogel composite heat insulation layer close to the joint.

[0015] Optionally, the joint protection unit further includes: a wireless communication module, wherein the signal input terminal of the wireless communication module is connected to the signal output terminal of the control module, and the signal output terminal of the wireless communication module is wirelessly connected to the signal input terminal of the terminal device; wherein the sensing module is further used to detect electromyographic signals at the joint, and the control module is used to send the electromyographic signals to the terminal device through the wireless communication module.

[0016] The technical solution provided in this disclosure may include the following beneficial effects: The control module precisely regulates the working status of the heating and dehumidification modules according to preset logic, thereby effectively coping with the high humidity environment underground, keeping the joints in a suitable temperature and humidity environment, reducing the damage of moisture to the joints, and ensuring efficient and safe operation of personnel underground.

[0017] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of an adaptive heating and dehumidification wearable protective system for underground coal mines, as proposed in one embodiment of this disclosure. As shown in the figure: 1. Joint protection unit, 11. Protective gear, 12. Warming module, 13. Dehumidification module, 14. Sensing module, 15. Control module, 16. Wireless communication module; 2. Power supply unit; 3. Power failure protection switch. Detailed Implementation

[0019] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] like Figure 1 As shown in the present disclosure, an adaptive temperature-compensating and humidity-reducing wearable protective system for underground coal mines is proposed, comprising: at least one joint protection unit 1, the joint protection unit 1 including: a protective garment 11, a temperature-compensating module 12, a humidity-reducing module 13, a sensing module 14, and a control module 15. The protective garment 11 is worn on the joint area of ​​the human body, and the temperature-compensating module 12 and the humidity-reducing module 13 are respectively disposed within the protective garment 11. The sensing module 14 is disposed on the side of the protective garment 11 near the joint area and is used to detect the temperature and humidity of the joint area. The control module 15 is used to activate the temperature-compensating module 12 to raise the temperature of the joint area when the temperature of the joint area is lower than a first preset temperature, and to activate the humidity-reducing module 13 to lower the humidity of the joint area when the humidity of the joint area is higher than a first preset humidity.

[0021] Understandably, the protective gear 11 is worn on the joints of the human body, and the control module 15 uses the sensor module 14 to obtain the temperature and humidity of the joints in real time. When the temperature of the joints is lower than the first preset temperature, the control module 15 activates the temperature replenishment module 12 to raise the temperature of the joints. When the humidity of the joints is higher than the first preset humidity, the control module 15 activates the dehumidification module 13 to reduce the humidity of the joints.

[0022] Therefore, the control module 15 precisely adjusts the working status of the heating module 12 and the dehumidification module 13 according to the preset logic, so as to effectively cope with the high humidity environment underground, keep the joints in a suitable temperature and humidity environment, reduce the damage of moisture to the joints, and ensure the efficient and safe operation of the workers underground.

[0023] It should be noted that the joint protection unit 1 is used for the protection of the human joints. Specifically, the joint protection unit 1 can be used as a wrist guard, knee pad, elbow pad, ankle guard, etc. The sleeve of each joint protection unit 1 is designed for different joints of the human body to ensure a close fit to the curve of the corresponding joint and not to affect the normal working movements of the operator. In this embodiment, the wearable protective system can use multiple joint protection units 1 to simultaneously achieve moisture protection for multiple joints.

[0024] The protective gear 11 supports the heating module 12, dehumidification module 13, sensing module 14, control module 15, etc., to facilitate the arrangement of each component at the joints. The specific type of protective gear 11 can be set according to actual needs and is not limited thereto. For example, the protective gear 11 is securely arranged on the outer layer of the work clothes through a detachable structure such as a magnetic interface and elastic straps, which is convenient for wearing and removing, and ensures that it will not easily shift during underground operations. In addition, corresponding to the joints, the protective gear 11 can adopt a hinge design, consisting of a stainless steel axle pin and a polytetrafluoroethylene bushing, with a bending angle ≥120°, which ensures normal joint movement and enhances the durability of the protective gear 11. Furthermore, the edges of the protective gear 11 can be covered with soft silicone rubber with a Shore hardness of 30A, which is soft and comfortable and effectively prevents skin scratches.

[0025] The heating module 12 is used to generate heat to raise the temperature of the joint, thereby achieving the heating function and coping with the cold environment downhole. The specific type of the heating module 12 can be set according to actual needs and there are no restrictions on it.

[0026] The dehumidification module 13 is used to filter out moisture to reduce the humidity in the joint area, thereby achieving the dehumidification function and coping with the cold and damp environment underground. The specific type of the dehumidification module 13 can be set according to actual needs and there are no restrictions on it.

[0027] The sensing module 14 is used to detect the temperature and humidity of the joint. The specific type of the sensing module 14 can be set according to actual needs and is not limited thereto. For example, the sensing module 14 is configured as a sensor array, including an NTC thermistor temperature sensor with an accuracy of ±0.5℃ and a capacitive humidity sensor with a range of 0%RH-100%RH. The NTC thermistor temperature sensor is used to monitor the surface temperature of the joint in real time and accurately, and the capacitive humidity sensor is used to monitor the surface humidity of the joint in real time and accurately.

[0028] The control module 15 is used to precisely regulate the working state of the heating module 12 and the dehumidification module 13 according to preset logic. The specific type of the control module 15 can be set according to actual needs and there is no restriction. For example, the control module 15 can be a controller, microcontroller unit, etc.

[0029] The first preset temperature can be 28°C. That is, when the temperature of the joint is less than 28°C, the temperature compensation module 12 is activated to raise the temperature of the joint.

[0030] The first preset humidity level can be 65%. This means that when the humidity in the joint area exceeds 65%, the dehumidification module 13 will be activated to reduce the humidity in the joint area. Alternatively, the first preset humidity level can also be 35℃, 40℃, or 45℃, using three temperature settings in manual mode to meet different operating conditions.

[0031] In some embodiments, the temperature compensation module 12 includes a graphene flexible electric heating film and a PWM (Pulse Width Modulation) module. The graphene flexible electric heating film is disposed on the side of the brace 11 near the joint area. The power input terminal of the PWM module is connected to the power output terminal of the power supply unit 2, and the power output terminal of the PWM module is connected to the power input terminal of the graphene flexible electric heating film. The signal output terminal of the control module 15 is connected to the signal input terminal of the PWM module. The control module 15 is used to control the PWM module to activate the graphene flexible electric heating film when the temperature of the joint area is lower than a first preset temperature, and to linearly adjust the power of the graphene flexible electric heating film according to the temperature difference between the joint area temperature and the first preset temperature.

[0032] Understandably, since the graphene flexible electric heating film is placed on the side of the protective gear 11 near the joint, and the power input terminal of the PWM module is connected to the power output terminal of the power supply unit 2, and the power output terminal of the PWM module is connected to the power input terminal of the graphene flexible electric heating film, the graphene flexible electric heating film can use the power delivered by the PWM module to achieve uniform heating of the joint.

[0033] Furthermore, since the signal output terminal of the control module 15 is connected to the signal input terminal of the PWM module, the control module 15 can control the PWM module, and thus control the graphene flexible electric heating film. Specifically, when the temperature of the joint is lower than the first preset temperature, the control module 15 controls the PWM module to start the graphene flexible electric heating film, and linearly adjusts the power of the graphene flexible electric heating film according to the temperature difference between the joint temperature and the first preset temperature, thereby achieving stepless temperature regulation and making the temperature control of the joint more precise.

[0034] It should be noted that graphene flexible electric heating film is a composite film that generates heat when electricity is applied. It is made of highly conductive graphene combined with polymer materials such as polyester, and its thickness is only a few micrometers. Its core advantages lie in its extremely high electrothermal conversion efficiency, uniform planar heating, and far-infrared health effects. The specific type of graphene flexible electric heating film can be set according to actual needs and is not limited thereto. Among them, the power density of graphene flexible electric heating film can be 0.2W / cm², the thickness can be 0.1mm, and the heating uniformity ≥90%.

[0035] Furthermore, the graphene flexible electric heating film incorporates a biomimetic blood vessel-like heat conduction channel design, allowing heat to diffuse evenly along the direction of joint movement, effectively preventing localized overheating and improving heating comfort and safety. In addition, the built-in farad-level supercapacitor enables rapid activation of the heating function even in temperatures as low as -20°C, ensuring timely warmth for workers in cold underground environments.

[0036] The PWM module is used for power regulation of the graphene flexible electric heating film, thereby achieving stepless temperature regulation. The specific type of PWM module can be set according to actual needs, and there are no restrictions on it.

[0037] In some embodiments, the dehumidification module 13 includes: three-dimensional honeycomb moisture-absorbing fibers and a circulation pump. The three-dimensional honeycomb moisture-absorbing fibers are located on the side of the brace 11 closest to the joint, with the air inlet of the fibers on the side closest to the joint and the air outlet on the side furthest from the joint. The air inlet of the circulation pump is connected to the air outlet of the three-dimensional honeycomb moisture-absorbing fibers, and the air outlet of the circulation pump extends out of the brace 11. The signal output terminal of the control module 15 is connected to the signal input terminal of the circulation pump, and the control module 15 is used to activate the circulation pump when the humidity at the joint exceeds a first preset humidity level.

[0038] It is understandable that, since the three-dimensional honeycomb moisture-absorbing fiber is on the side of the protective garment 11 near the joint, and the air inlet of the circulation pump is connected to the air outlet of the three-dimensional honeycomb moisture-absorbing fiber, and the air outlet of the circulation pump extends out of the protective garment 11, the circulation pump can drive the humid air in the joint area to pass through the three-dimensional honeycomb moisture-absorbing fiber and be discharged outside the protective garment after it is started. Furthermore, when the humid air passes through the three-dimensional honeycomb moisture-absorbing fiber, the moisture in it can be absorbed by the three-dimensional honeycomb moisture-absorbing fiber.

[0039] Furthermore, since the signal output terminal of the control module 15 is connected to the signal input terminal of the circulation pump, the control module 15 can control the operation of the circulation pump. Specifically, when the humidity of the joint area is greater than the first preset humidity, the control module 15 starts the circulation pump, thereby using the flow of moisture in the three-dimensional honeycomb moisture-absorbing fiber to achieve dehumidification of the joint area.

[0040] It should be noted that the three-dimensional honeycomb moisture-absorbing fiber has a honeycomb-shaped moisture-absorbing fiber structure, employing a honeycomb-like microporous structure that runs through both the inside and outside. Based on the capillary wicking principle, it achieves rapid moisture absorption. This three-dimensional structure gives the fiber a specific surface area more than 170 times that of cotton fiber, endowing it with superior water absorption and diffusion capabilities. The specific type of three-dimensional honeycomb moisture-absorbing fiber can be set according to actual needs and is not limited thereto. Three-dimensional honeycomb moisture-absorbing fiber can be made from a blend of polyester fiber and bamboo charcoal fiber, with a moisture absorption rate ≥15%.

[0041] Among them, the inner layer of the protective gear 11 has ventilation holes to facilitate the active expulsion of moisture. At the same time, the bamboo charcoal fiber can play a good role in absorbing moisture and adsorbing sweat.

[0042] In addition, the graphene flexible electrothermal film and the three-dimensional honeycomb moisture-absorbing fiber arranged simultaneously in the inner layer of the sheath can be distributed circumferentially along the joint.

[0043] The circulation pump is used to allow air to flow from the three-dimensional honeycomb moisture-absorbing fibers to reduce the humidity of the air near the joint. The specific type of circulation pump can be set according to actual needs and is not limited thereto. For example, the circulation pump can be a miniature air pump, such as the MAC20-B miniature air pump.

[0044] In some embodiments, the dehumidification module 13 further includes a PTC (Positive Temperature Coefficient) heating module, which is disposed within the protective gear 11, with the heating end of the PTC heating module disposed on the three-dimensional honeycomb moisture-absorbing fibers. The signal output terminal of the control module 15 is connected to the signal input terminal of the PTC heating module, and the control module 15 is used to activate the PTC heating module when the humidity at the joint area exceeds a first preset humidity level.

[0045] It is understandable that, since the heating end of the PTC heating module is set on the three-dimensional honeycomb moisture-absorbing fiber, and the signal output end of the control module 15 is connected to the signal input end of the PTC heating module, the control module 15 can control the PTC heating module to heat the three-dimensional honeycomb moisture-absorbing fiber. Specifically, when the humidity at the joint is greater than the first preset humidity, the control module 15 starts the PTC heating module, thereby accelerating the evaporation of moisture in the three-dimensional honeycomb moisture-absorbing fiber and thus improving the dehumidification efficiency of the three-dimensional honeycomb moisture-absorbing fiber.

[0046] It should be noted that the PTC heating module is used to heat the three-dimensional honeycomb moisture-absorbing fibers to accelerate moisture evaporation. The specific type of PTC heating module can be set according to actual needs and is not limited thereto. The power consumption of the PTC heating module is <2W.

[0047] In some embodiments, the dehumidification module 13 further includes an indicator module, which is disposed on the protective gear 11, and the signal input terminal of the indicator module is connected to the signal output terminal of the control module 15. The control module 15 is configured to control the indicator module to issue a first indicator message when the humidity at the joint is not greater than a first preset humidity, to issue a second indicator message when the humidity at the joint is greater than the first preset humidity, and to issue a third indicator message when the humidity at the joint is greater than the second preset humidity for a preset time, wherein the second preset humidity is greater than the first preset humidity.

[0048] Understandably, since the signal input terminal of the indicator module is connected to the signal output terminal of the control module 15, the control module 15 can use the indicator module to issue indicator information, thereby effectively prompting the operator. Specifically, when the humidity of the joint is not greater than the first preset humidity, the control indicator module issues the first indicator information to indicate that the humidity of the joint is good; when the humidity of the joint is greater than the first preset humidity, the control indicator module issues the second indicator information to indicate that the humidity of the joint is poor; when the humidity of the joint is greater than the second preset humidity and continues for a preset time, the control indicator module issues the third indicator information to indicate that the humidity of the joint is extremely poor.

[0049] It should be noted that when the humidity of the joint area is good, the operator does not need to handle the joint protection unit 1. When the humidity of the joint area is poor, the joint protection unit 1 will automatically replenish the temperature and dehumidify, which also does not require the operator's handling. At the same time, the operator will be reminded that the joint protection unit 1 is in operation. However, when the humidity of the joint area is extremely poor, the joint protection unit 1 needs to be replaced or adjusted.

[0050] The specific type of indicator module can be set according to actual needs and there are no restrictions on it. For example, the indicator module can be an LED indicator, which uses different colors or flashing frequencies to indicate the first, second and third indicator information.

[0051] like Figure 1 As shown, in some embodiments, the system further includes: a power supply unit 2 and multiple power failure protection switches 3. The power supply unit 2 is worn on the human body, and its power output terminal is connected to the power input terminal of the heating module 12, the power input terminal of the dehumidification module 13, the power input terminal of the sensing module 14, and the power input terminal of the control module 15, respectively. The multiple power failure protection switches 3 are respectively disposed between the multiple power output terminals of the power supply unit 2 and the power input terminals of the multiple joint protection units 1. The first terminal of the power failure protection switch 3 is connected to the power output terminal of the power supply unit 2, and the second terminal of the power failure protection switch 3 is connected to the power input terminals of the heating module 12, the dehumidification module 13, the sensing module 14, and the control module 15, respectively. The signal output terminal of the control module 15 is connected to the signal input terminal of the power failure protection switch 3, and the control module 15 is used to control the corresponding power failure protection switch 3 to turn off when the temperature of the joint is not lower than a second preset temperature.

[0052] Understandably, since the first terminal of the power failure protection switch 3 is connected to the power output terminal of the power supply unit 2, and the second terminal of the power failure protection switch 3 is connected to the power input terminals of the heating module 12, the dehumidification module 13, the sensing module 14, and the control module 15 respectively, when the power failure protection switch 3 is turned on, the power supply unit 2 can supply power to the heating module 12, the dehumidification module 13, the sensing module 14, and the control module 15, thereby ensuring the stable operation of the joint protection unit 1. Furthermore, when the power failure protection switch 3 is turned off, the power supply to the heating module 12, the dehumidification module 13, the sensing module 14, and the control module 15 can be cut off.

[0053] Furthermore, since the signal output terminal of the control module 15 is connected to the signal input terminal of the power failure protection switch 3, the control module 15 can control the on / off state of the power failure protection switch 3. Specifically, when the temperature of the joint is not lower than the second preset temperature, the control module 15 controls the corresponding power failure protection switch 3 to turn off, thereby realizing the emergency power failure of the joint protection unit 1 and avoiding safety accidents caused by excessively high temperatures.

[0054] It should be noted that the power supply unit 2 is used to supply power to each joint protection unit 1, and the power failure protection switch 3 is used to control the power supply to each joint protection unit 1. The specific types of the power supply unit 2 and the power failure protection switch 3 can be set according to actual needs, and there are no restrictions on them.

[0055] The second preset temperature can be 42℃. That is, when the temperature of the joint is not less than 42℃, the control module 15 controls the corresponding power-off protection switch 3 to turn off.

[0056] In some embodiments, the power supply unit 2 includes: a waist belt, a lithium battery pack, and multiple thin-film solar cells. The waist belt is worn on the waist of the human body. The lithium battery pack is detachably mounted on the waist belt, and the power output terminal of the lithium battery pack is connected to the first terminal of the power failure protection switch 3. The multiple thin-film solar cells are respectively mounted on multiple protective gear 11, and the power output terminal of the thin-film solar cells is connected to the first terminal of the power failure protection switch 3.

[0057] Understandably, since the power output terminal of the lithium battery pack is connected to the first terminal of the power failure protection switch 3, the lithium battery pack can serve as the main power source to supply power to each joint protection unit 1. Furthermore, since the power output terminal of the thin-film solar cell is connected to the first terminal of the power failure protection switch 3, the thin-film solar cell can serve as a backup power source to temporarily supply power to each joint protection unit 1. Thus, through the cooperation of the lithium battery pack and multiple thin-film solar cells, the stable operation of the joint protection unit 1 is ensured.

[0058] In addition, since the belt is worn on the waist and the lithium battery pack is detachably mounted on the belt, the main weight of the power supply unit 2 is borne by the waist, thereby reducing the burden on the joints and making the joint protection unit 1 more convenient and comfortable to use.

[0059] It should be noted that the belt is fixed to the waist to reduce interference with joint movement. The specific type of belt can be set according to actual needs and there are no restrictions on it.

[0060] The lithium battery pack serves as the main power source, and its specific type can be set according to actual needs without restriction. For example, the lithium battery pack uses a 5000mAh capacity and supports fast charging.

[0061] Each joint protection unit 1 is equipped with a thin-film solar cell as a backup power source. The specific type of thin-film solar cell can be set according to actual needs and is not limited thereto. For example, the thin-film solar cell can provide 5%-10% continuous power supply under downhole lighting conditions, extending the service life of the joint protection unit 1.

[0062] In some embodiments, the sensing module 14 is further configured to detect the pressure between the protective gear 11 and the joint, and the control module 15 is configured to control the power-off protection switch 3 to turn off when the pressure between the protective gear 11 and the joint exceeds a preset pressure range.

[0063] It is understandable that the control module 15 uses the sensor module 14 to obtain the pressure between the protective gear 11 and the joint in real time. When the pressure between the protective gear 11 and the joint exceeds the preset pressure range, the control module 15 controls the power-off protection switch 3 to turn off, thereby realizing the emergency power-off of the joint protection unit 1. This avoids the joint protection unit 1 from being over-compressed and affecting the normal movement of the joint, or from losing the heat replenishment and dehumidification protection function due to excessive relaxation of the joint protection unit 1.

[0064] It should be noted that the sensing module 14 may also include a piezoelectric pressure sensor with a range of 0 kPa to 50 kPa, which can monitor the fit of the protective gear 11 at the joint area in real time and accurately.

[0065] In some embodiments, the protective gear 11 includes an aramid fiber layer and an aerogel composite insulation layer. The aramid fiber layer is coated with a hydrophobic nano-coating, and the aramid fiber layer is disposed on the side of the aerogel composite insulation layer away from the joint. The heat replenishment module 12, the dehumidification module 13, and the sensing module 14 are respectively disposed on the side of the aerogel composite insulation layer closer to the joint.

[0066] Understandably, the protective gear 11 forms a multi-layer protective structure with an outer layer of aramid fiber, a middle layer of aerogel composite insulation layer, and an inner layer of a heat-compensating module 12, a dehumidifying module 13, and a sensing module 14. The high-strength aramid fiber layer coated with a hydrophobic nano-coating can achieve the scratch-resistant and flame-retardant properties of the protective gear 11, effectively preventing coal dust adhesion. The aerogel composite insulation layer can significantly reduce the conduction of external low temperature to the joints.

[0067] It should be noted that the aramid fiber layer is made of aramid fiber material, and the specific type of the aramid fiber layer and the hydrophobic nano-coating can be set according to actual needs, without any restrictions.

[0068] Aerogel composite insulation layers are composite insulation materials with aerogel as the main component. The specific type of aerogel composite insulation layer can be set according to actual needs and is not limited thereto. The thickness of the aerogel composite insulation layer can range from 2mm to 3mm, and the thermal conductivity is ≤0.02W / m·K.

[0069] For the multi-layered arrangement structure of the protective gear 11, additional electrical protection structures can be adopted. For example, a PVDF insulating film with a withstand voltage of ≥5kV can be added between the heating film and the conductive layer of the graphene flexible electric heating film to prevent leakage accidents; overcurrent protection is set up by using a combination of fuse and electronic current limiting, with a rated current of 2A to ensure safe operation of the circuit; silicone sealing rings are used at the interface of the protective gear 11 to achieve a waterproof rating of IP67, preventing moisture from entering the interior of the protective gear 11 and damaging electrical components.

[0070] like Figure 1 As shown, in some embodiments, the joint protection unit 1 further includes a wireless communication module 16, the signal input terminal of which is connected to the signal output terminal of the control module 15, and the signal output terminal of the wireless communication module 16 is wirelessly connected to the signal input terminal of the terminal device. The sensing module 14 is further used to detect electromyographic signals at the joint site, and the control module 15 is used to transmit the electromyographic signals to the terminal device via the wireless communication module 16.

[0071] It is understandable that, since the signal input terminal of the wireless communication module 16 is connected to the signal output terminal of the control module 15, and the signal output terminal of the wireless communication module 16 is wirelessly connected to the signal input terminal of the terminal device, the control module 15 can send data to the terminal device through the wireless communication module 16. Specifically, the control module 15 uses the sensing module 14 to acquire electromyographic signals of the joint in real time, and sends the electromyographic signals to the terminal device through the wireless communication module 16, thereby facilitating the health monitoring of the joint.

[0072] It should be noted that the sensing module 14 may also include a bioelectric sensor, which can monitor the electromyographic signals of the joint in real time and accurately, thereby using the electrical activity of the muscles around the joint to provide early warning of excessive fatigue of the joint.

[0073] The wireless communication module 16 can be a Bluetooth module, which can connect to mobile phones, tablets, etc. via Bluetooth, record the device's usage data and generate health reports, making it convenient for operators and managers to understand the health status of the joints.

[0074] For example, the wireless communication module 16 can also use LoRa (Long Range) technology for communication, with a transmission distance of up to 1km and a standby power consumption of <0.1mW, effectively reducing energy consumption.

[0075] The wearable protective system of this embodiment has at least the following beneficial effects: (1) The system can intelligently sense the underground environment and automatically adjust the temperature and humidity to create a dry and warm space for the joints, effectively resisting the damage of moisture and preventing rheumatism. During emergency rescue, the high temperature mode can quickly relieve low temperature spasms, and daily use can also reduce joint fatigue, providing comprehensive protection for the health of workers.

[0076] (2) Its lightweight nature ensures that workers' movements are not restricted, and intelligent temperature and humidity control improves work comfort and reduces negative emotions caused by discomfort. At the same time, it reduces the frequency of work stoppages caused by joint problems, ensures work continuity, and significantly improves the efficiency of coal mining operations.

[0077] (3) The system has low energy consumption due to adaptive adjustment, and the modular design makes maintenance costs low. It is easy to operate and has multiple safety protections to ensure the safety of workers and the durability of protective gear. At the same time, it can monitor joint health in real time through the interface and APP, generate reports, and help scientific health management.

[0078] It should be noted that in the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0079] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A wearable protective system for adaptive temperature replenishment and dehumidification in underground coal mines, characterized in that, include: At least one joint protection unit, the joint protection unit comprising: a protective gear, a warming module, a dehumidifying module, a sensing module, and a control module; The protective gear is worn on the joint area of ​​the human body, and the warming module and the dehumidifying module are respectively installed inside the protective gear. The sensing module is installed on the side of the protective gear near the joint area, and the sensing module is used to detect the temperature and humidity of the joint area. The control module is used to activate the temperature replenishment module to raise the temperature of the joint when the temperature of the joint is lower than a first preset temperature, and to activate the dehumidification module to reduce the humidity of the joint when the humidity of the joint is higher than a first preset humidity.

2. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 1, characterized in that, The temperature compensation module includes: Graphene flexible electrothermal film and pulse width modulation (PWM) module; The graphene flexible electrothermal film is disposed on the side of the protective gear near the joint, and the power input terminal of the PWM module is connected to the power output terminal of the power supply unit, and the power output terminal of the PWM module is connected to the power input terminal of the graphene flexible electrothermal film. The signal output terminal of the control module is connected to the signal input terminal of the PWM module, and the control module is used to control the PWM module to start the graphene flexible electric heating film when the temperature of the joint is lower than the first preset temperature, and to linearly adjust the power of the graphene flexible electric heating film according to the temperature difference between the joint temperature and the first preset temperature.

3. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 1, characterized in that, The dehumidification module includes: Three-dimensional honeycomb moisture-absorbing fibers and a circulation pump; The three-dimensional honeycomb moisture-absorbing fiber is located on the side of the protective gear near the joint, with the air inlet of the three-dimensional honeycomb moisture-absorbing fiber located on the side of the three-dimensional honeycomb moisture-absorbing fiber near the joint and the air outlet of the three-dimensional honeycomb moisture-absorbing fiber located on the side of the three-dimensional honeycomb moisture-absorbing fiber away from the joint. The air inlet of the circulation pump is connected to the air outlet of the three-dimensional honeycomb moisture-absorbing fiber, and the air outlet of the circulation pump extends out of the protective gear. The signal output terminal of the control module is connected to the signal input terminal of the circulation pump, and the control module is used to start the circulation pump when the humidity of the joint is greater than a first preset humidity.

4. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 3, characterized in that, The dehumidification module also includes: A positive temperature coefficient PTC heating module is provided inside the protective gear, and the heating end of the PTC heating module is provided on the three-dimensional honeycomb moisture-absorbing fiber. The signal output terminal of the control module is connected to the signal input terminal of the PTC heating module, and the control module is used to activate the PTC heating module when the humidity of the joint is greater than a first preset humidity.

5. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 3, characterized in that, The dehumidification module also includes: An indicator module is mounted on the protective gear, and the signal input terminal of the indicator module is connected to the signal output terminal of the control module. The control module is configured to control the indicator module to issue a first indicator message when the humidity of the joint is not greater than a first preset humidity, control the indicator module to issue a second indicator message when the humidity of the joint is greater than the first preset humidity, and control the indicator module to issue a third indicator message when the humidity of the joint is greater than the second preset humidity and continues for a preset time. The second preset humidity is greater than the first preset humidity.

6. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 1, characterized in that, The system also includes: A power supply unit is worn on the human body, and the power output terminal of the power supply unit is connected to the power input terminal of the heating module, the power input terminal of the dehumidification module, the power input terminal of the sensing module, and the power input terminal of the control module, respectively. Multiple power failure protection switches are respectively disposed between multiple power output terminals of the power supply unit and multiple power input terminals of the joint protection unit. The first terminal of each power failure protection switch is connected to the power output terminal of the power supply unit, and the second terminal of each power failure protection switch is connected to the power input terminal of the heating module, the power input terminal of the dehumidification module, the power input terminal of the sensing module, and the power input terminal of the control module. The signal output terminal of the control module is connected to the signal input terminal of the power failure protection switch, and the control module is used to control the corresponding power failure protection switch to turn off when the temperature of the joint is not lower than the second preset temperature.

7. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 6, characterized in that, The power supply unit includes: A belt, which is worn around the waist of a person; A lithium battery pack is detachably mounted on the belt, and the power output terminal of the lithium battery pack is connected to the first terminal of the power failure protection switch. Multiple thin-film solar cells are respectively disposed on multiple protective devices, and the power output terminal of each thin-film solar cell is connected to the first terminal of the power failure protection switch.

8. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 6, characterized in that, The sensing module is also used to detect the pressure between the protective gear and the joint, and the control module is used to control the power failure protection switch to turn off when the pressure between the protective gear and the joint exceeds a preset pressure range.

9. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 1, characterized in that, The protective gear includes: Aramid fiber layer and aerogel composite insulation layer; The aramid fiber layer is coated with a hydrophobic nano-coating, and the aramid fiber layer is disposed on the side of the aerogel composite insulation layer away from the joint. The heat replenishment module, the dehumidification module and the sensing module are respectively disposed on the side of the aerogel composite insulation layer close to the joint.

10. The adaptive temperature and humidity control wearable protective system for underground coal mines according to claim 1, characterized in that, The joint protection unit further includes: a wireless communication module, wherein the signal input terminal of the wireless communication module is connected to the signal output terminal of the control module, and the signal output terminal of the wireless communication module is wirelessly connected to the signal input terminal of the terminal device; The sensing module is also used to detect electromyographic signals at the joint, and the control module is used to send the electromyographic signals to the terminal device through the wireless communication module.

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