Multifunctional safety helmet and early warning method thereof

Abstract

The present application relates to the technical field of security facilities, and specifically discloses a multifunctional safety helmet and a warning method thereof, which comprises the following steps: acquiring air components, and starting a filter when harmful substances are detected at an initial power P0; acquiring the real-time concentration of the harmful substances, adjusting the initial power according to the real-time concentration to obtain a first working power; acquiring the change rate of the concentration of the harmful substances, adjusting the working power according to the change rate to obtain a second working power; acquiring surrounding environment data, correcting the second working power according to the environment data to obtain a final power; and detecting the blood oxygen concentration of the wearer, and giving an alarm when the blood oxygen concentration is lower than a preset threshold. The present application guarantees the safety of the wearer when working in a small space, can realize intelligent adjustment of the filtering power, and has the functions of warning and alarming, which is beneficial to improving work efficiency and fully guaranteeing the personal safety of the wearer.

Description

Technical Field

[0001] This invention relates to the field of security facilities technology, and more specifically, to a multifunctional safety helmet and its early warning method. Background Technology

[0002] In modern industrial production and construction, there are often situations where work needs to be done in confined spaces, such as underground pipeline maintenance, high-altitude maintenance, and mining operations. These working environments typically have problems with harmful gases or impurities in the air, such as carbon dioxide, insufficient oxygen, harmful gases, and dust, which pose a certain threat to the health and safety of the workers.

[0003] However, traditional safety helmets generally only protect the head and cannot detect or filter harmful gases or impurities in the air. If workers wear traditional safety helmets in confined spaces, they may be exposed to harmful gases or impurities in the air, leading to health damage. Furthermore, traditional safety helmets lack warning and alarm functions, failing to effectively signal danger and delaying rescue efforts.

[0004] Therefore, designing a multifunctional safety helmet and its early warning method, which can detect harmful gases or impurities in the air in real time and issue timely alarms through an alarm system, is of great significance for improving the safety and efficiency of working in confined spaces. Summary of the Invention

[0005] In view of this, the present invention proposes a multifunctional safety helmet and its early warning method, aiming to solve the problem that current safety helmets cannot effectively guarantee the personal safety of wearers when working in confined spaces.

[0006] In one aspect, the present invention proposes a multifunctional safety helmet warning method, comprising:

[0007] It acquires the components of the air and, when a harmful substance is detected, activates the filter at an initial power of P0.

[0008] The real-time concentration of the harmful substance is obtained, and the initial power is adjusted according to the real-time concentration to obtain the first working power;

[0009] The rate of change of the concentration of the harmful substance is obtained, and the working power is adjusted according to the rate of change to obtain a second working power;

[0010] Acquire surrounding environmental data, and correct the second operating power based on the environmental data to obtain the final power;

[0011] The device detects the wearer's blood oxygen concentration and triggers an alarm when the blood oxygen concentration falls below a preset threshold.

[0012] Further, obtaining the real-time concentration of the harmful substance, and adjusting the initial power based on the real-time concentration to obtain a first operating power, includes:

[0013] The real-time concentration ΔY of the harmful substance is obtained, and a first preset concentration Y1, a second preset concentration Y2, a third preset concentration Y3 and a fourth preset concentration Y4 are preset, where Y1 < Y2 < Y3 < Y4. A first preset adjustment coefficient A1, a second preset adjustment coefficient A2, a third preset adjustment coefficient A3 and a fourth preset adjustment coefficient A4 are preset, where A1 < A2 < A3 < A4.

[0014] Based on the relationship between the real-time concentration ΔY and each preset concentration, a preset adjustment coefficient is selected to adjust the initial power P0 to obtain the first working power;

[0015] When Y1≤△Y<Y2, the first preset adjustment coefficient A1 is selected to adjust the initial power P0 to obtain the first working power P0*A1;

[0016] When Y2≤△Y<Y3, the initial power P0 is adjusted by the second preset adjustment coefficient A2 to obtain the first working power P0*A2;

[0017] When Y3≤△Y<Y4, the initial power P0 is adjusted by the third preset adjustment coefficient A3 to obtain the first working power P0*A3;

[0018] When Y4≤△Y, the initial power P0 is adjusted by the fourth preset adjustment coefficient A4 to obtain the first working power P0*A4.

[0019] Furthermore, after adjusting the initial power P0 with the selected preset adjustment coefficient Ai to obtain the first working power P0*Ai, where i = 1, 2, 3, 4, the rate of change of the concentration of the harmful substance is obtained, and the working power is adjusted according to the rate of change to obtain the second working power, including:

[0020] The rate of change of the concentration of the harmful substance is obtained, ΔV. A first preset rate V1, a second preset rate V2, a third preset rate V3 and a fourth preset rate V4 are preset, and V1 < V2 < V3 < V4. A first preset power adjustment coefficient B1, a second preset power adjustment coefficient B2, a third preset power adjustment coefficient B3 and a fourth preset power adjustment coefficient B4 are preset, and B1 < B2 < B3 < B4.

[0021] Based on the relationship between the rate of change ΔV and each preset rate, a preset power adjustment coefficient is selected to adjust the first working power P0*Ai to obtain the second working power.

[0022] Furthermore, based on the relationship between the rate of change ΔV and each preset rate, a preset power adjustment coefficient is selected to adjust the first working power P0*Ai to obtain the second working power, including:

[0023] When V1≤△V<V2, the first preset power adjustment coefficient B1 is selected to adjust the first working power P0*Ai to obtain the second working power P0*Ai*B1;

[0024] When V2≤△V<V3, the second preset power adjustment coefficient B2 is selected to adjust the first working power P0*Ai to obtain the second working power P0*Ai*B2;

[0025] When V3≤△V<V4, the third preset power adjustment coefficient B3 is selected to adjust the first working power P0*Ai to obtain the second working power P0*Ai*B3;

[0026] When V4≤△V, the first working power P0*Ai is adjusted by the fourth preset power adjustment coefficient B4 to obtain the second working power P0*Ai*B4.

[0027] Furthermore, after adjusting the first working power P0*Ai by selecting the i-th preset power adjustment coefficient Bi to obtain the second working power P0*Ai*Bi, i = 1, 2, 3, 4, the surrounding environment data is acquired, and the second working power is corrected according to the environmental data to obtain the final power. The surrounding environment data includes real-time temperature ΔW, real-time humidity ΔS, and real-time air velocity ΔK. The first preset temperature W1, the second preset temperature W2, the third preset temperature W3, and the fourth preset temperature W4 are preset, and W1 < W2 < W3 < W4. The first preset correction coefficient C1, the second preset correction coefficient C2, the third preset correction coefficient C3, and the fourth preset correction coefficient C4 are preset, and C1 < C2 < C3 < C4.

[0028] The second working power is corrected by selecting a correction coefficient based on the relationship between the real-time temperature ΔW and each preset temperature;

[0029] When W1≤△W<W2, the first preset correction coefficient C1 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C1 is obtained.

[0030] When W2≤△W<W3, the second preset correction coefficient C2 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C2 is obtained.

[0031] When W3≤△W<W4, the third preset correction coefficient C3 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C3 is obtained.

[0032] When W4≤△W, the fourth preset correction coefficient C4 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C4 is obtained.

[0033] Furthermore, after selecting the i-th preset correction coefficient Ci to correct the second operating power P0*Ai*Bi, and obtaining the corrected second operating power P0*Ai*Bi*Ci, where i = 1, 2, 3, 4, the step of correcting the second operating power based on the environmental data to obtain the final power further includes:

[0034] A first preset humidity S1, a second preset humidity S2, a third preset humidity S3 and a fourth preset humidity S4 are preset, and S1 < S2 < S3 < S4;

[0035] Based on the relationship between the real-time humidity ΔS and each preset humidity, a correction coefficient is selected to perform a secondary correction on the corrected second working power.

[0036] Furthermore, based on the relationship between the real-time humidity ΔS and each preset humidity, a correction coefficient is selected to perform a secondary correction on the corrected second operating power, including:

[0037] When S1≤△S<S2, the first preset correction coefficient C1 is selected to perform secondary correction on the corrected second working power P0*Ai*Bi*Ci, and the corrected second working power P0*Ai*Bi*Ci*C1 is obtained.

[0038] When S2≤△S<S3, the second preset correction coefficient C2 is selected to perform secondary correction on the corrected second working power P0*Ai*Bi*Ci to obtain the corrected second working power P0*Ai*Bi*Ci*C2.

[0039] When S3≤△S<S4, the third preset correction coefficient C3 is selected to perform secondary correction on the corrected second working power P0*Ai*Bi*Ci to obtain the corrected second working power P0*Ai*Bi*Ci*C3.

[0040] When S4≤△S, the fourth preset correction coefficient C4 is selected to perform a second correction on the corrected second working power P0*Ai*Bi*Ci, and the corrected second working power P0*Ai*Bi*Ci*C4 is obtained.

[0041] Furthermore, after selecting the i-th preset correction coefficient Ci to perform a second correction on the corrected second operating power P0*Ai*Bi*Ci, and obtaining the corrected second operating power P0*Ai*Bi*Ci*Ci, where i = 1, 2, 3, 4, the step of correcting the second operating power based on the environmental data to obtain the final power also includes...

[0042] A first preset flow rate K1, a second preset flow rate K2, a third preset flow rate K3 and a fourth preset flow rate K4 are preset, and K1 < K2 < K3 < K4;

[0043] Based on the relationship between the real-time air velocity ΔK and each preset velocity, a correction coefficient is selected to perform three corrections on the corrected second working power.

[0044] Furthermore, based on the relationship between the real-time airflow velocity ΔK and each preset velocity, a correction coefficient is selected to perform three corrections on the corrected second operating power, including:

[0045] When K1≤△K<K2, the first preset correction coefficient C1 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*Ci to obtain the final power P0*Ai*Bi*Ci*Ci*C1.

[0046] When K2≤△K<K3, the second preset correction coefficient C2 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*C i to obtain the final power P0*Ai*Bi*C i*Ci*C2.

[0047] When K3≤△K<K4, the third preset correction coefficient C3 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*Ci to obtain the final power P0*Ai*Bi*Ci*Ci*C3.

[0048] When K4≤△K, the fourth preset correction coefficient C4 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*Ci to obtain the final power P0*Ai*Bi*Ci*Ci*C4.

[0049] Compared with existing technologies, the advantages of this invention are as follows: The safety helmet has a built-in filter that can detect and filter harmful gases or impurities in the air, protecting the wearer's respiratory health and reducing operational risks. It can intelligently adjust its operating power based on the detected concentration and rate of change of harmful substances to meet the operational needs of different environments and improve the wearer's work efficiency. It can acquire ambient environmental data to correct the secondary operating power, making it more accurate and improving safety and work efficiency. It can detect the wearer's blood oxygen concentration; when the blood oxygen concentration falls below a preset threshold, it will promptly issue an alarm, reminding the wearer to leave the work environment immediately to prevent discomfort or danger caused by hypoxia.

[0050] On the other hand, this application also provides a multi-functional safety helmet, including:

[0051] Acquisition module: Used to acquire air composition; when harmful substances are detected, the filter is activated at initial power P0.

[0052] Adjustment module: used to acquire the real-time concentration of the harmful substance, and adjust the initial power according to the real-time concentration to obtain a first working power; the adjustment module is also used to acquire the rate of change of the concentration of the harmful substance, and adjust the working power according to the rate of change to obtain a second working power;

[0053] Correction module: used to acquire surrounding environmental data, correct the second working power based on the environmental data, and obtain the final power;

[0054] Alarm module: Detects the wearer's blood oxygen concentration and triggers an alarm when the blood oxygen concentration is lower than a preset threshold.

[0055] It is understandable that the aforementioned multifunctional safety helmet and its warning method have the same beneficial effects, and will not be elaborated further here. Attached Figure Description

[0056] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0057] Figure 1 A flowchart of a multifunctional safety helmet warning method provided in an embodiment of the present invention;

[0058] Figure 2 This is a functional block diagram of a multifunctional safety helmet provided in an embodiment of the present invention. Detailed Implementation

[0059] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey its scope to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0060] One aspect, see Figure 1 As shown, this application provides a multifunctional safety helmet warning method, including the following steps:

[0061] Step S100: Obtain air components; when a harmful substance is detected, turn on the filter at initial power P0.

[0062] Step S200: Obtain the real-time concentration of the harmful substance, and adjust the initial power according to the real-time concentration to obtain the first working power.

[0063] Step S300: Obtain the rate of change of the concentration of the harmful substance, and adjust the working power according to the rate of change to obtain a second working power.

[0064] Step S400: Obtain surrounding environmental data, and correct the second working power based on the environmental data to obtain the final power.

[0065] Step S500: Detect the wearer's blood oxygen concentration, and issue an alarm when the blood oxygen concentration is lower than a preset threshold.

[0066] Specifically, step S100 involves acquiring air components. When harmful substances are detected, the filter is activated at an initial power P0 to ensure the wearer breathes clean air in the work environment. Step S200 involves acquiring the real-time concentration of the harmful substances and adjusting the initial power based on the real-time concentration to obtain a first operating power. This step adjusts the filter's operating power based on the actual concentration of harmful substances to improve its efficiency. Step S300 involves acquiring the rate of change of the harmful substance concentration and adjusting the operating power based on the rate of change to obtain a second operating power. This step adjusts the filter's operating power based on the rate of change of the harmful substance concentration to maintain its stability. Step S400 involves acquiring ambient environmental data and correcting the second operating power based on the environmental data to obtain a final power. This step corrects the filter's operating power based on changes in the ambient environment, such as temperature, humidity, and air pressure, to ensure its stability and reliability. Step S500 involves detecting the wearer's blood oxygen concentration and triggering an alarm when the blood oxygen concentration falls below a preset threshold. This step ensures the wearer's safety by monitoring their blood oxygen concentration. Pulse oximetry technology can be used to detect the wearer's blood oxygen level. Once the wearer's blood oxygen concentration falls below a preset threshold, an alarm will be triggered. The alarm will issue an alert to inform the wearer to evacuate in time, and it can also connect to the network to inform the monitoring center to take emergency measures.

[0067] Understandably, multi-functional safety helmet warning methods can effectively protect the wearer's safety when working in confined spaces, improve work efficiency, and reduce the occurrence of safety accidents.

[0068] In some embodiments of this application, step S200, obtaining the real-time concentration of the hazardous substance and adjusting the initial power according to the real-time concentration to obtain a first working power, includes: obtaining the real-time concentration ΔY of the hazardous substance; pre-setting a first preset concentration Y1, a second preset concentration Y2, a third preset concentration Y3, and a fourth preset concentration Y4, where Y1 < Y2 < Y3 < Y4; pre-setting a first preset adjustment coefficient A1, a second preset adjustment coefficient A2, a third preset adjustment coefficient A3, and a fourth preset adjustment coefficient A4, where A1 < A2 < A3 < A4; and selecting a preset adjustment coefficient to adjust the initial power according to the relationship between the real-time concentration ΔY and each preset concentration. The initial power P0 is adjusted to obtain the first working power; when Y1≤△Y<Y2, the first preset adjustment coefficient A1 is selected to adjust the initial power P0 to obtain the first working power P0*A1; when Y2≤△Y<Y3, the second preset adjustment coefficient A2 is selected to adjust the initial power P0 to obtain the first working power P0*A2; when Y3≤△Y<Y4, the third preset adjustment coefficient A3 is selected to adjust the initial power P0 to obtain the first working power P0*A3; when Y4≤△Y, the fourth preset adjustment coefficient A4 is selected to adjust the initial power P0 to obtain the first working power P0*A4.

[0069] Understandably, adjusting based on real-time concentration allows for effective adjustments to the protective capabilities of the safety helmet based on the real-time concentration levels and severity of different hazardous substances, ensuring the wearer's safety. Simultaneously, the preset adjustment coefficients allow for flexible adaptation to the needs of different work scenarios, thereby enhancing the practicality and applicability of the multi-functional safety helmet.

[0070] In some embodiments of this application, after adjusting the initial power P0 with the selected i-th preset adjustment coefficient Ai to obtain the first working power P0*Ai, i = 1, 2, 3, 4, step S300 obtains the rate of change of the concentration of the harmful substance, and adjusts the working power according to the rate of change to obtain the second working power. This includes obtaining the rate of change of the concentration of the harmful substance ΔV, presetting a first preset rate V1, a second preset rate V2, a third preset rate V3, and a fourth preset rate V4, where V1 < V2 < V3 < V4, and presetting a first preset power adjustment coefficient B1, a second preset power adjustment coefficient B2, a third preset power adjustment coefficient B3, and a fourth preset power adjustment coefficient B4, where B1 < B2 < B3 < B4; and selecting a preset power adjustment coefficient to adjust the first working power P0*Ai according to the relationship between the rate of change ΔV and each preset rate to obtain the second working power.

[0071] Specifically, when V1≤△V<V2, the first preset power adjustment coefficient B1 is selected to adjust the first working power P0*Ai to obtain the second working power P0*Ai*B1; when V2≤△V<V3, the second preset power adjustment coefficient B2 is selected to adjust the first working power P0*Ai to obtain the second working power P0*Ai*B2; when V3≤△V<V4, the third preset power adjustment coefficient B3 is selected to adjust the first working power P0*Ai to obtain the second working power P0*Ai*B3; when V4≤△V, the fourth preset power adjustment coefficient B4 is selected to adjust the first working power P0*Ai to obtain the second working power P0*Ai*B4.

[0072] Specifically, by acquiring the real-time concentration of hazardous substances and adjusting the initial power according to a preset concentration and adjustment coefficient, a suitable adjustment coefficient is selected to obtain a first operating power. Then, by acquiring the rate of change of hazardous substance concentration and a preset rate and power adjustment coefficient, a suitable power adjustment coefficient is selected to adjust the first operating power to obtain a second operating power.

[0073] Specifically, the concentration of harmful substances can be the ratio of the total content of harmful gases, dust, or other impurities in the air to the total volume of the gas. The rate of change can be understood as the difference between the concentration of harmful substances at a predetermined time, such as half an hour, and the concentration at the previous adjacent time.

[0074] Understandably, adjusting the operating power based on real-time changes in the concentration of hazardous substances ensures efficient and stable operation of the equipment, while avoiding equipment overload and energy waste caused by excessive adjustments. Furthermore, this method is flexible, allowing adjustments based on different changes in hazardous substance concentrations to meet various practical needs.

[0075] In some embodiments of this application, after adjusting the first working power P0*Ai by selecting the i-th preset power adjustment coefficient Bi to obtain the second working power P0*Ai*Bi, i = 1, 2, 3, 4, step S400 acquires ambient environmental data, corrects the second working power according to the environmental data, and obtains the final power. The ambient environmental data includes real-time temperature ΔW, real-time humidity ΔS, and real-time air velocity ΔK. A first preset temperature W1, a second preset temperature W2, a third preset temperature W3, and a fourth preset temperature W4 are preset, and W1 < W2 < W3 < W4. A first preset correction coefficient C1, a second preset correction coefficient C2, a third preset correction coefficient C3, and a fourth preset correction coefficient C4 are preset, and C1 < C2 < C3 < C4. The correction coefficient is selected to correct the second working power according to the relationship between the real-time temperature ΔW and each preset temperature.

[0076] Specifically, when W1≤△W<W2, the first preset correction coefficient C1 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C1 is obtained; when W2≤△W<W3, the second preset correction coefficient C2 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C2 is obtained; when W3≤△W<W4, the third preset correction coefficient C3 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C3 is obtained; when W4≤△W, the fourth preset correction coefficient C4 is selected to correct the second working power, and the corrected second working power P0*Ai*Bi*C4 is obtained.

[0077] In some embodiments of this application, after selecting the i-th preset correction coefficient Ci to correct the second working power P0*Ai*Bi and obtaining the corrected second working power P0*Ai*Bi*Ci, i = 1, 2, 3, 4, the step S400 of correcting the second working power according to the environmental data to obtain the final power further includes: presetting a first preset humidity S1, a second preset humidity S2, a third preset humidity S3 and a fourth preset humidity S4, and S1 < S2 < S3 < S4; and selecting a correction coefficient to perform a secondary correction on the corrected second working power according to the relationship between the real-time humidity ΔS and each preset humidity.

[0078] Specifically, when S1≤△S<S2, the first preset correction coefficient C1 is selected to perform a second correction on the corrected second working power P0*Ai*Bi*Ci, and the corrected second working power P0*Ai*Bi*Ci*C1 is obtained; when S2≤△S<S3, the second preset correction coefficient C2 is selected to perform a second correction on the corrected second working power P0*Ai*Bi*Ci, and the corrected second working power P0*Ai*Bi*Ci*C2 is obtained; when S3≤△S<S4, the third preset correction coefficient C3 is selected to perform a second correction on the corrected second working power P0*Ai*Bi*Ci, and the corrected second working power P0*Ai*Bi*Ci*C3 is obtained; when S4≤△S, the fourth preset correction coefficient C4 is selected to perform a second correction on the corrected second working power P0*Ai*Bi*Ci, and the corrected second working power P0*Ai*Bi*Ci*C4 is obtained.

[0079] In some embodiments of this application, after selecting the i-th preset correction coefficient Ci to perform a second correction on the corrected second working power P0*Ai*Bi*Ci, and obtaining the corrected second working power P0*Ai*Bi*Ci*Ci, i = 1, 2, 3, 4, step S400, which corrects the second working power according to the environmental data to obtain the final power, further includes: presetting a first preset flow velocity K1, a second preset flow velocity K2, a third preset flow velocity K3, and a fourth preset flow velocity K4, where K1 < K2 < K3 < K4; and selecting correction coefficients to perform a third correction on the corrected second working power according to the relationship between the real-time air flow velocity ΔK and each preset flow velocity.

[0080] Specifically, when K1 ≤ ΔK < K2, the first preset correction coefficient C1 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*Ci to obtain the final power P0*Ai*Bi*Ci*C1; when K2 ≤ ΔK < K3, the second preset correction coefficient C2 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*Ci to obtain the final power P0*Ai*Bi*Ci*Ci. *C2; When K3≤△K<K4, the third preset correction coefficient C3 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*Ci to obtain the final power P0*Ai*Bi*Ci*Ci*C3; When K4≤△K, the fourth preset correction coefficient C4 is selected to perform three corrections on the corrected second working power P0*Ai*Bi*Ci*Ci to obtain the final power P0*Ai*Bi*Ci*Ci*C4.

[0081] Specifically, the impact of environmental factors on equipment is a common issue. For example, high temperatures can increase the failure rate of equipment. To ensure the reliability of the device, it is first calibrated based on temperature. Since ambient humidity affects the power consumption of the device, it is then calibrated again based on humidity data after temperature calibration. Because of the function of the filter, the airflow rate has little impact on the wearer, so it is calibrated finally based on the airflow rate.

[0082] It is understandable that the power consumption of equipment may fluctuate due to environmental factors. By calibrating the operating power, we can ensure that the equipment maintains stable performance under different environmental conditions, thereby improving work efficiency and stability. The calibrated operating power is more accurate, preventing the equipment from consuming excessive energy unnecessarily, thus reducing energy costs and environmental impact. By calibrating the operating power based on real-time environmental data, the equipment can better adapt to different environmental conditions, thereby improving its adaptability and reliability. Reducing power fluctuations in different environments can lower equipment maintenance costs and complexity, and extend the equipment's lifespan.

[0083] The built-in filter in the above embodiments can detect and filter harmful gases or impurities in the air, protecting the wearer's respiratory health and reducing operational risks. It can intelligently adjust its operating power based on the detected concentration and rate of change of harmful substances to meet the operational needs of different environments and improve the wearer's work efficiency. It can acquire ambient environmental data to correct the secondary operating power, making it more accurate and improving safety and work efficiency. It can detect the wearer's blood oxygen concentration; when the blood oxygen concentration falls below a preset threshold, it will promptly issue an alarm, reminding the wearer to leave the work environment immediately to prevent discomfort or danger caused by hypoxia.

[0084] In another preferred embodiment based on the above embodiments, see [reference] Figure 2 As shown, this embodiment provides a multi-functional safety helmet, including:

[0085] Acquisition module: Used to acquire air composition; when harmful substances are detected, the filter is activated at initial power P0.

[0086] Adjustment module: used to acquire the real-time concentration of the harmful substance, and adjust the initial power according to the real-time concentration to obtain a first working power; the adjustment module is also used to acquire the rate of change of the concentration of the harmful substance, and adjust the working power according to the rate of change to obtain a second working power;

[0087] Correction module: used to acquire surrounding environmental data, correct the second working power based on the environmental data, and obtain the final power;

[0088] Alarm module: Detects the wearer's blood oxygen concentration and triggers an alarm when the blood oxygen concentration is lower than a preset threshold.

[0089] It is understandable that the aforementioned multifunctional safety helmet and its warning method have the same beneficial effects, and will not be elaborated further here.

[0090] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0091] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0092] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0093] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A multifunctional safety helmet warning method, characterized in that, include: It acquires the components of the air and, when a harmful substance is detected, activates the filter at an initial power of P0. The real-time concentration of the harmful substance is obtained, and the initial power is adjusted according to the real-time concentration to obtain the first working power; The rate of change of the concentration of the harmful substance is obtained, and the working power is adjusted according to the rate of change to obtain a second working power; Acquire surrounding environmental data, and correct the second operating power based on the environmental data to obtain the final power; The device detects the wearer's blood oxygen concentration and triggers an alarm when the blood oxygen concentration falls below a preset threshold. Obtaining the real-time concentration of the harmful substance, and adjusting the initial power based on the real-time concentration to obtain a first operating power, includes: The real-time concentration ΔY of the harmful substance is obtained, and a first preset concentration Y1, a second preset concentration Y2, a third preset concentration Y3 and a fourth preset concentration Y4 are preset, where Y1 < Y2 < Y3 < Y4. A first preset adjustment coefficient A1, a second preset adjustment coefficient A2, a third preset adjustment coefficient A3 and a fourth preset adjustment coefficient A4 are preset, where A1 < A2 < A3 < A4. Based on the relationship between the real-time concentration ΔY and each preset concentration, a preset adjustment coefficient is selected to adjust the initial power P0 to obtain the first working power; When Y1≤△Y<Y2, the initial power P0 is adjusted by selecting the first preset adjustment coefficient A1 to obtain the first working power P0. A1; When Y2≤△Y<Y3, the initial power P0 is adjusted by selecting the second preset adjustment coefficient A2 to obtain the first working power P0. A2; When Y3≤△Y<Y4, the initial power P0 is adjusted by the third preset adjustment coefficient A3 to obtain the first working power P0. A3; When Y4≤△Y, the initial power P0 is adjusted by the fourth preset adjustment coefficient A4 to obtain the first working power P0. A4.

2. The multifunctional safety helmet warning method according to claim 1, characterized in that, The initial power P0 is adjusted by selecting the i-th preset adjustment coefficient Ai to obtain the first working power P0. After Ai, i = 1, 2, 3, 4, the rate of change of the concentration of the harmful substance is obtained, and the working power is adjusted according to the rate of change to obtain a second working power, including: The rate of change of the concentration of the harmful substance is obtained, ΔV. A first preset rate V1, a second preset rate V2, a third preset rate V3 and a fourth preset rate V4 are preset, and V1 < V2 < V3 < V4. A first preset power adjustment coefficient B1, a second preset power adjustment coefficient B2, a third preset power adjustment coefficient B3 and a fourth preset power adjustment coefficient B4 are preset, and B1 < B2 < B3 < B4. Based on the relationship between the rate of change ΔV and each preset rate, a preset power adjustment coefficient is selected for the first working power P0. AI is adjusted to obtain the second operating power.

3. The multifunctional safety helmet early warning method according to claim 2, characterized in that, Based on the relationship between the rate of change ΔV and each preset rate, a preset power adjustment coefficient is selected for the first working power P0. AI is adjusted to obtain the second operating power, including: When V1≤△V<V2, the first preset power adjustment coefficient B1 is selected for the first working power P0. Ai is adjusted to obtain the second operating power P0. Ai B1; When V2≤△V<V3, the second preset power adjustment coefficient B2 is selected for the first working power P0. Ai is adjusted to obtain the second operating power P0. Ai B2; When V3≤△V<V4, the third preset power adjustment coefficient B3 is selected for the first working power P0. Ai is adjusted to obtain the second operating power P0. Ai B3; When V4≤△V, the fourth preset power adjustment coefficient B4 is selected for the first working power P0. Ai is adjusted to obtain the second operating power P0. Ai B4.

4. The multifunctional safety helmet warning method according to claim 3, characterized in that, Selecting the i-th preset power adjustment coefficient Bi to adjust the first working power P0 Ai is adjusted to obtain the second operating power P0. Ai After Bi, i=1, 2, 3, 4, acquire surrounding environmental data, and correct the second working power according to the environmental data to obtain the final power. The surrounding environmental data includes real-time temperature ΔW, real-time humidity ΔS and real-time air velocity ΔK. A first preset temperature W1, a second preset temperature W2, a third preset temperature W3 and a fourth preset temperature W4 are preset, and W1 < W2 < W3 < W4. A first preset correction coefficient C1, a second preset correction coefficient C2, a third preset correction coefficient C3 and a fourth preset correction coefficient C4 are preset, and C1 < C2 < C3 < C4. The second working power is corrected by selecting a correction coefficient based on the relationship between the real-time temperature ΔW and each preset temperature; When W1≤△W<W2, the first preset correction coefficient C1 is selected to correct the second working power, and the corrected second working power P0 is obtained. Ai Bi C1; When W2≤△W<W3, the second preset correction coefficient C2 is selected to correct the second working power, and the corrected second working power P0 is obtained. Ai Bi C2; When W3≤△W<W4, the third preset correction coefficient C3 is selected to correct the second working power, and the corrected second working power P0 is obtained. Ai Bi C3; When W4 ≤ ΔW, the fourth preset correction coefficient C4 is selected to correct the second working power, and the corrected second working power P0 is obtained. Ai Bi C4.

5. The multifunctional safety helmet warning method according to claim 4, characterized in that, Selecting the i-th preset correction coefficient Ci for the second working power P0 Ai Bi is used for calibration to obtain the calibrated second operating power P0. Ai Bi After Ci, i=1, 2, 3, 4, the step of correcting the second working power based on the environmental data to obtain the final power further includes: A first preset humidity S1, a second preset humidity S2, a third preset humidity S3 and a fourth preset humidity S4 are preset, and S1 < S2 < S3 < S4; Based on the relationship between the real-time humidity ΔS and each preset humidity, a correction coefficient is selected to perform a secondary correction on the corrected second working power.

6. The multifunctional safety helmet warning method according to claim 5, characterized in that, Based on the relationship between the real-time humidity ΔS and each preset humidity, a correction coefficient is selected to perform a secondary correction on the corrected second operating power, including: When S1≤△S<S2, the first preset correction coefficient C1 is selected to adjust the corrected second working power P0. Ai Bi Ci performs a second correction to obtain the corrected second operating power P0. Ai Bi Ci C1; When S2≤△S<S3, the second preset correction coefficient C2 is selected to adjust the corrected second working power P0. Ai Bi Ci performs a second correction to obtain the corrected second operating power P0. Ai Bi Ci C2; When S3≤△S<S4, the third preset correction coefficient C3 is selected to adjust the corrected second working power P0. Ai Bi Ci performs a second correction to obtain the corrected second operating power P0. Ai Bi Ci C3; When S4≤△S, the fourth preset correction coefficient C4 is selected to correct the second working power P0. Ai Bi Ci performs a second correction to obtain the corrected second operating power P0. Ai Bi Ci C4.

7. The multifunctional safety helmet warning method according to claim 6, characterized in that, Select the i-th preset correction coefficient Ci to adjust the corrected second working power P0 Ai Bi Ci performs a second correction to obtain the corrected second operating power P0. Ai Bi Ci After Ci, i=1, 2, 3, 4, the step of correcting the second working power based on the environmental data to obtain the final power further includes: A first preset flow rate K1, a second preset flow rate K2, a third preset flow rate K3 and a fourth preset flow rate K4 are preset, and K1 < K2 < K3 < K4; Based on the relationship between the real-time air velocity ΔK and each preset velocity, a correction coefficient is selected to perform three corrections on the corrected second working power.

8. The multifunctional safety helmet warning method according to claim 7, characterized in that, Based on the relationship between the real-time airflow velocity ΔK and each preset velocity, a correction coefficient is selected to perform three corrections on the corrected second operating power, including: When K1≤△K<K2, the first preset correction coefficient C1 is selected to adjust the corrected second working power P0. Ai Bi Ci Ci is corrected three times to obtain the final power P0. Ai Bi Ci Ci C1; When K2≤△K<K3, the second preset correction coefficient C2 is selected to adjust the corrected second working power P0. Ai Bi Ci Ci is corrected three times to obtain the final power P0. Ai Bi Ci Ci C2; When K3≤△K<K4, the third preset correction coefficient C3 is selected to adjust the corrected second working power P0. Ai Bi Ci Ci is corrected three times to obtain the final power P0. Ai Bi Ci Ci C3; When K4 ≤ ΔK, the fourth preset correction coefficient C4 is selected to correct the second working power P0. Ai Bi Ci Ci is corrected three times to obtain the final power P0. Ai Bi Ci Ci C4.

9. A multi-functional safety helmet, characterized in that, The method for warning of a multi-functional safety helmet as described in any one of claims 1-8 includes: Acquisition module: Used to acquire air composition; when harmful substances are detected, the filter is activated at initial power P0. Adjustment module: used to acquire the real-time concentration of the harmful substance, and adjust the initial power according to the real-time concentration to obtain a first working power; the adjustment module is also used to acquire the rate of change of the concentration of the harmful substance, and adjust the working power according to the rate of change to obtain a second working power; Correction module: used to acquire surrounding environmental data, correct the second working power based on the environmental data, and obtain the final power; Alarm module: Detects the wearer's blood oxygen concentration and triggers an alarm when the blood oxygen concentration is lower than a preset threshold.

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