Hypoxia evaluation and training system

Abstract

The invention discloses a hypoxia evaluation and training system, which comprises a hypoxia evaluation module and a hypoxia adaptation training module, and is characterized in that the hypoxia evaluation module is used for performing hypoxia sensitive typing on a subject according to body index data of the subject in a test process; the hypoxia adaptation training module is used for carrying out hypoxia adaptation training on the subjects with the hypoxia sensitive types of the extreme sensitive type, the moderate sensitive type and the slight sensitive type, returning to the hypoxia evaluation module for hypoxia sensitive typing after the training is completed, if the hypoxia sensitive typing result is superior to the previous hypoxia sensitive typing result, continuing to carry out next hypoxia adaptation training, and if the hypoxia sensitive typing result is not superior to the previous hypoxia sensitive typing result, carrying out hypoxia adaptation training. Determining that the subject can enter the hypoxia environment work until the final hypoxia sensitive type is adaptive type or the hypoxia sensitive type is slightly sensitive type but the hypoxia adaptation training span period exceeds a preset period; the system has the advantages that hypoxia evaluation is carried out on operators in hypoxia places, the problem that subjects are intolerant is solved, and the personal safety of the operators is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of labor protection and health, and in particular to a hypoxia assessment and training system. Background Art

[0002] Hypoxia is a condition in which oxygen bioavailability is reduced due to decreased oxygen diffusion from the lungs to the blood, impaired oxygen transport in the blood, decreased tissue perfusion, or chemical toxicity in cells. At altitude, the reduced air pressure results in a lower partial pressure of oxygen in the air, which reduces the force required to transport oxygen from the lungs to the blood. Hypoxia triggers various cardiovascular and respiratory adjustments in the body, but despite such compensations, it can lead to impaired vision, cognition, motor control, and ultimately severe disability, unconsciousness, and even death.

[0003] At present, according to the national standard GB 8958-2006 "Safety Regulations for Hypoxic Hazardous Operations", hypoxic hazardous operations in hypoxic hazardous places refer to the state where the oxygen content in the air in the workplace is lower than 19.5%, which is an oxygen-deficient state. Hypoxic hazardous operations include various operations under potential and obvious hypoxic conditions, mainly including general hypoxic operations and special hypoxic hazardous operations; general hypoxic operations refer to simple hypoxic hazardous operations in the workplace, and special hypoxic hazardous operations refer to hypoxic hazardous operations in which other harmful gases exist or may be produced at the same time in the workplace.

[0004] For example, Chinese patent publication number CN116982964A discloses a hypoxia tolerance screening method and screening device, including a screening method. Through a series of structures such as a hood, a control box, a main gas path, a branch gas path, a safety window, etc., a hypoxia tolerance screening device is finally generated through a screening method. This device can solve the problems of complex structure and heavy weight of large hypoxia chambers in the prior art, can judge the hypoxia tolerance of the subject, and quickly screen out personnel who are not suitable for plateau work. Although the device can quickly screen out personnel who are not suitable for plateau work and can solve the problems of large hypoxia chambers in the prior art. However, the evaluation and screening method of the device is too complicated and the equipment is complicated, and it is not possible to promote it. After the screening, there is no practical method for the subject to solve the intolerance of the subject.

[0005] At the same time, according to social development and the progress of the times, the existing hypoxic workplaces are not limited to plateau environments. The national standard GB 8958-2006 "Safety Regulations for Hypoxic Hazardous Work" stipulates that the existing hypoxic hazardous workplaces are classified as follows:

[0006] a) Closed equipment: refers to cabins, storage tanks, towers (kettles), flues, caissons and boilers, etc.

[0007] b) Underground confined space: including underground pipelines, basements, underground warehouses, underground projects, culverts, tunnels, culverts, pits, mines, abandoned wells, sewage pools (wells), biogas pools and septic tanks, etc.

[0008] c) Limited space on the ground: including enclosed spaces such as wine lees pools, fermentation tanks, garbage stations, greenhouses, cold storages, granaries, and silos.

[0009] At present, before workers enter hypoxic workplaces to work, they measure the oxygen content in the air in the workplace according to the principle of testing before working; they maintain the necessary number of measurements or continuous monitoring during work. The main protective measures are to ventilate the workplace; equip workers with air respirators or other respiratory protection equipment; and strengthen safety training for workers. However, before entering hypoxic workplaces, workers are not tested to see if they can enter the workplace to work, which may lead to potential risks and the safety of workers cannot be well guaranteed.

[0010] For workers who have no experience with hypoxia, hypoxic hazardous work is a relatively dangerous activity. Even for experienced people, slow hypoxia without any response from the body can cause hypoxia reactions without them noticing, which can be dangerous. Early identification of hypoxia is essential to prevent loss of capacity and take corrective measures. Sudden hypoxia is easy to detect and feel, but hypoxia symptoms caused by slow or unrecognized hypoxia usually do not have obvious reactions. If you have not experienced it beforehand, it may be difficult to be aware of the dangers of hypoxia. In summary, if workers in hypoxic places perform hypoxic work without understanding or clarifying their own hypoxic reactions, it will greatly increase their own risks. Therefore, it is necessary to conduct hypoxia assessments on workers in hypoxic places and address the intolerance of the subjects to ensure the personal safety of the workers. Summary of the invention

[0011] The technical problem to be solved by the present invention is how to conduct hypoxia assessment on workers in hypoxic places and solve the intolerance situation of the subjects to ensure the personal safety of the workers.

[0012] The present invention solves the above technical problems through the following technical means: a hypoxia assessment and training system, including a hypoxia assessment module and a hypoxia adaptation training module,

[0013] The hypoxia assessment module is used to classify the hypoxia sensitivity of the subject according to the physical index data of the subject during the test, into extremely sensitive type, moderately sensitive type, slightly sensitive type and adaptive type;

[0014] The hypoxia adaptation training module is used to perform hypoxia adaptation training on subjects whose hypoxia sensitivity typing is extremely sensitive, moderately sensitive, and slightly sensitive. After the training is completed, the subjects return to the hypoxia assessment module for hypoxia sensitivity typing. If the result of hypoxia sensitivity typing is better than the previous one, the next hypoxia adaptation training will continue until the final hypoxia sensitivity typing is adaptive type or the hypoxia sensitivity typing is slightly sensitive but the hypoxia adaptation training span period exceeds the preset period, and it is determined that the subject is able to enter the hypoxic environment to work, otherwise it is determined that the subject is not suitable for working in the hypoxic environment.

[0015] Furthermore, the hypoxia assessment and training system also includes a display and control device, an air supply mechanism, a hypoxia concentration percentage mechanism, a control mechanism, a biofeedback mechanism and an environmental detection mechanism;

[0016] A gas supply mechanism, used to produce anoxic gas through a nitrogen production assembly, and to deliver the produced anoxic gas through a second control valve and a third control valve through a gas outlet to a normal pressure hypoxia mask worn by a subject through a first control valve, an oxygen concentration percentage mechanism and a control mechanism;

[0017] The oxygen-deficient concentration percentage mechanism is used to receive the oxygen-deficient gas produced by the nitrogen production component and adjust the oxygen-deficient concentration percentage according to the instruction issued by the control mechanism, produce oxygen-deficient gas of corresponding concentration, and feed back the result to the display and control device through the control mechanism;

[0018] The biofeedback mechanism is used to monitor the operator's blood oxygen, heart rate, blood pressure, respiratory rate and body temperature in real time, and feed back the monitoring results to the display and control device through the control mechanism;

[0019] The environmental detection mechanism is used to detect the environmental temperature and humidity, and feed back to the display and control device through the control mechanism;

[0020] The control mechanism is used to send an instruction of the hypoxia concentration percentage to the hypoxia concentration percentage mechanism after receiving the instruction sent by the display and control device, control the start and stop of the first control valve, the second solenoid valve and the third solenoid valve, and at the same time receive feedback data from the hypoxia concentration percentage mechanism, the biofeedback mechanism and the environmental detection mechanism and upload it to the display and control device.

[0021] Furthermore, the process of performing hypoxia sensitivity typing on the subject is:

[0022] Hypoxic gas with a preset hypoxia concentration percentage is delivered to the subject. During the test, the subject's blood oxygen saturation is measured in real time using a finger-clip pulse oximeter. When the blood oxygen saturation reaches 85%, the system sends a command to the control mechanism, and the control mechanism opens the third control valve. At the same time, the first control valve is opened to exhaust the hypoxic gas in the pipeline, and the sound and light alarm valve in the control mechanism is opened. Then normal air is inhaled until the subject's blood oxygen saturation returns to a normal level of 95%. At this time, the first test is completed, and the time T0 when the blood oxygen saturation begins to decrease, the time T1 when the blood oxygen saturation reaches 85%, and the time T2 when the blood oxygen saturation returns to 95% are recorded. The time period V1 for the subject to inhale hypoxic gas before the blood oxygen saturation reaches 85% is calculated based on T0 and T1. The time period V2 required for the blood oxygen saturation to return to 95% when normal air is inhaled is calculated based on T2 and T1. The hypoxia sensitivity typing is determined based on the range of V1 and V2.

[0023] Furthermore, the time period V1 for the subject to inhale hypoxic gas before the blood oxygen saturation reaches 85% is calculated based on T0 and T1, the time period V2 for the blood oxygen saturation to recover to 95% when normal air is inhaled is calculated based on T2 and T1, and the hypoxia sensitivity classification is determined based on the range of V1 and V2, including:

[0024] V1=T1-T0

[0025] V2=T2-T1

[0026] When V1≤B, V2≤F, the hypoxia sensitivity classification is extremely sensitive;

[0027] When V1≤C, V2≤D, the hypoxia sensitivity classification is moderately sensitive;

[0028] When V1 is B-E and V2 is A-B, the hypoxia sensitivity classification is mildly sensitive;

[0029] When V1 and V2 are other than the above conditions, the hypoxia-sensitive classification is adaptive;

[0030] Among them, the units of A, B, C, D, E, and F are all seconds, and A<B<C<D<E<F.

[0031] Furthermore, the values ​​of A, B, C, D, E, and F are 30, 90, 120, 150, 160, and 180, respectively.

[0032] When V1≤90s, V2≤180s, the hypoxia sensitivity classification is extremely sensitive;

[0033] When V1≤120s, V2≤150s, the hypoxia sensitivity classification is moderately sensitive;

[0034] When V1 is 90s-160s and V2 is 30s-90s, the hypoxia sensitivity type is mildly sensitive;

[0035] When V1 and V2 are other than the above, the hypoxia-sensitive typing is adaptive.

[0036] Furthermore, the blood oxygen saturation is between 85% and 95% and lasts for more than 10 minutes, and the hypoxia sensitivity classification is adaptive.

[0037] Furthermore, the decrease rate of the blood oxygen saturation of the subject during the test was Among them, V1 max It is the maximum value of V1 under the current hypoxia sensitivity classification;

[0038] The rate of increase in blood oxygen saturation during the test period of the subject was Among them, V2 max It is the maximum value of V2 under the current hypoxia-sensitive classification.

[0039] Furthermore, the hypoxia adaptation training module provides hypoxia adaptation training for subjects with hypoxia sensitivity types of extremely sensitive, moderately sensitive, and slightly sensitive in training modes A1, B1, and C1, respectively.

[0040] Furthermore, the hypoxia adaptation training module is also used for:

[0041] If the subject undergoes hypoxia assessment for the first time and the hypoxia sensitivity type is extremely sensitive, adaptation training is performed according to the hypoxia adaptation training mode A1 corresponding to the extremely sensitive type. After completion, the hypoxia assessment is performed again and the hypoxia sensitivity type is moderately sensitive. Subsequently, adaptation training is performed according to the hypoxia adaptation training mode B1 corresponding to the moderately sensitive type. After completion, the hypoxia assessment is performed for the third time and the hypoxia sensitivity type is slightly sensitive. Training is continued accordingly until the final hypoxia sensitivity type is adapted or the hypoxia sensitivity type is slightly sensitive but the hypoxia adaptation training span period exceeds the preset period, the subject is judged to be able to work in the hypoxic environment, otherwise, the subject is judged to be unsuitable for working in the hypoxic environment.

[0042] Furthermore, the training mode A1 is training at a hypoxia concentration percentage of 19.6% for 5 days, 30 minutes per day, then training at a hypoxia concentration percentage of 18.2% for 5 days, 30 minutes per day, and finally training at a hypoxia concentration percentage of 17.0% for 5 days, 30 minutes per day; the training mode B1 is training at a hypoxia concentration percentage of 18.2% for 5 days, 30 minutes per day, then training at a hypoxia concentration percentage of 17.0% for 5 days, 30 minutes per day, and finally training at a hypoxia concentration percentage of 15.8% for 5 days, 30 minutes per day; the training mode C1 is training at a hypoxia concentration percentage of 15.8% for 5 days, 30 minutes per day, then training at a hypoxia concentration percentage of 13.7% for 5 days, 30 minutes per day, and finally training at a hypoxia concentration percentage of 11.7% for 5 days, 30 minutes per day.

[0043] The advantages of the present invention are as follows: the present invention detects the hypoxia reaction of workers in hypoxic places and their hypoxia sensitivity typing, and can carry out the next step of hypoxia adaptation training according to the hypoxia sensitivity typing of the evaluation system to solve the intolerance of the subjects. At the same time, after training, it can eventually determine which subjects are not suitable for working in hypoxic environments, thereby ensuring the personal safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of the appearance and structure of a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0045] Figure 2 A schematic diagram of a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0046] Figure 3 An extremely sensitive blood oxygen saturation curve diagram in a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0047] Figure 4 A moderately sensitive blood oxygen saturation curve diagram in a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0048] Figure 5 A slightly sensitive blood oxygen saturation curve diagram in a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0049] Figure 6 An adaptive blood oxygen saturation curve diagram in a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0050] Figure 7 A schematic diagram of cyclic switching of training modes in a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0051] Figure 8A curve diagram of hypoxia assessment test data during a simulation experiment in a hypoxia assessment and training system disclosed in an embodiment of the present invention;

[0052] Fig. 9 This is a curve chart of hypoxia training test data during a simulation experiment in a hypoxia assessment and training system disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] like Figure 1 and Figure 2 As shown, the present invention provides a hypoxia assessment and training system, including a display and control device, an air supply mechanism, a hypoxia concentration percentage mechanism, a control mechanism, a biofeedback mechanism and an environmental detection mechanism; Figure 1 This is a schematic diagram of the appearance and structure of the hypoxia assessment and training system. Figure 1 The number 1 is the display and control device, the number 2 is the gas outlet, and the other structures are Figure 1 It cannot be seen in the body; it is all inside.

[0055] A gas supply mechanism, used to produce anoxic gas through a nitrogen production assembly, and to deliver the produced anoxic gas through a second control valve and a third control valve through a gas outlet to a normal pressure hypoxia mask worn by a subject through a first control valve, an oxygen concentration percentage mechanism and a control mechanism;

[0056] The oxygen-deficient concentration percentage mechanism is used to receive the oxygen-deficient gas produced by the nitrogen production component and adjust the oxygen-deficient concentration percentage according to the instruction issued by the control mechanism, produce oxygen-deficient gas of corresponding concentration, and feed back the result to the display and control device through the control mechanism;

[0057] The biofeedback mechanism is used to monitor the operator's blood oxygen, heart rate, blood pressure, respiratory rate and body temperature in real time, and feed back the monitoring results to the display and control device through the control mechanism;

[0058] The environmental detection mechanism is used to detect the environmental temperature and humidity, and feed back to the display and control device through the control mechanism;

[0059] The control mechanism is used to send an instruction of the hypoxia concentration percentage to the hypoxia concentration percentage mechanism after receiving the instruction sent by the display and control device, control the start and stop of the first control valve, the second solenoid valve and the third solenoid valve, and at the same time receive feedback data from the hypoxia concentration percentage mechanism, the biofeedback mechanism and the environmental detection mechanism and upload it to the display and control device.

[0060] The control mechanism has built-in multiple software algorithm modules, specifically the hypoxia assessment module and the hypoxia adaptation training module.

[0061] The hypoxia assessment module is used to classify the hypoxia sensitivity of the subject according to the physical index data of the subject during the test, into extremely sensitive type, moderately sensitive type, slightly sensitive type and adaptive type;

[0062] The hypoxia adaptation training module is used to perform hypoxia adaptation training on subjects whose hypoxia sensitivity typing is extremely sensitive, moderately sensitive, and slightly sensitive. After the training is completed, the subjects return to the hypoxia assessment module for hypoxia sensitivity typing. If the result of hypoxia sensitivity typing is better than the previous one, the next hypoxia adaptation training will continue until the final hypoxia sensitivity typing is adaptive type or the hypoxia sensitivity typing is slightly sensitive but the hypoxia adaptation training span period exceeds the preset period, and it is determined that the subject is able to enter the hypoxic environment to work, otherwise it is determined that the subject is not suitable for working in the hypoxic environment.

[0063] The following is a detailed description of the specific execution process of the hypoxia assessment module. Currently, the hypoxia sensitivity assessment of hypoxia workers can be divided into four types:

[0064] The first type is extremely sensitive type R1 (refers to workers who experience breathing difficulties, heart rate acceleration and other abnormal physiological indicators or strong physical reactions in a short period of time in an oxygen-deficient environment), and have a slow recovery time after leaving the environment;

[0065] The second type is moderately sensitive type R2 (refers to workers who experience breathing difficulties, accelerated heartbeat and other abnormal physiological indicators or obvious physical reactions in about 120 seconds in an oxygen-deficient environment). The recovery time is shorter than that of the first type.

[0066] The third type, mildly sensitive R3 (refers to workers who can move freely for a relatively long time in an oxygen-deficient environment without experiencing any abnormal physiological indicators such as breathing difficulties or no obvious physical reactions), has a shorter recovery time;

[0067] The fourth type is adaptive type R4 (refers to workers being able to work, walk, read books and newspapers, exercise and other activities normally in an oxygen-deficient environment, and there are no obvious changes in various physiological indicators and no physical reactions).

[0068] The method of hypoxia sensitivity typing is:

[0069] Hypoxic gas with a preset hypoxia concentration percentage is delivered to the subject. During the test, the subject's blood oxygen saturation is measured in real time using a finger-clip pulse oximeter. When the blood oxygen saturation reaches 85%, the system sends a command to the control mechanism, and the control mechanism opens the third control valve. At the same time, the first control valve is opened to exhaust the hypoxic gas in the pipeline, and the sound and light alarm valve in the control mechanism is opened. Then normal air is inhaled until the subject's blood oxygen saturation returns to a normal level of 95%. At this time, the first test is completed, and the time T0 when the blood oxygen saturation begins to decrease, the time T1 when the blood oxygen saturation reaches 85%, and the time T2 when the blood oxygen saturation returns to 95% are recorded. The time period V1 for the subject to inhale hypoxic gas before the blood oxygen saturation reaches 85% is calculated based on T0 and T1. The time period V2 required for the blood oxygen saturation to return to 95% when normal air is inhaled is calculated based on T2 and T1. The hypoxia sensitivity typing is determined based on the range of V1 and V2.

[0070] in,

[0071] like Figure 3 As shown in the figure, when V1≤90s, V2≤180s, the hypoxia sensitivity classification is extremely sensitive; this reaction is a rapid decrease period of blood oxygen saturation (V1≤90s) and a longer recovery period (V2≤180s). For non-exercise, initial workers in hypoxic hazardous operations, the rapid decrease in blood oxygen saturation (SpO2) indicates that they are highly sensitive to hypoxia and have reduced physiological function status. If they go to special hypoxic hazardous places to work, these people are likely to be infected with acute hypoxic diseases.

[0072] like Figure 4 As shown in the figure, when V1≤120s, V2≤150s, the hypoxia sensitivity classification is moderately sensitive; this type of hypoxia response is characterized by a longer blood oxygen decline time and recovery time, a decline period (V1≤120s) and a recovery period (V2≤150s).

[0073] like Figure 5 As shown in the figure, when V1 is 90s-160s and V2 is 30s-90s, the hypoxia sensitivity type is mildly sensitive; usually, this represents the reaction of people who are familiar with hypoxia, such as climbers and athletes who often hold their breath, such as free divers. Descent period (V1 = 90s-160s), recovery period (V2 = 30s-90s).

[0074] like Figure 6As shown, when V1 and V2 are other than the above situations, the hypoxia sensitivity classification is adaptive. In this embodiment, the blood oxygen saturation is between 85% and 95% and lasts for more than 10 minutes, and the hypoxia sensitivity classification is adaptive. Usually, this type of hypoxic reaction personnel are people who adapt to the hypoxic environment, such as people who have lived in plateaus and high altitudes for a long time. The blood oxygen is always between 85% <SpO2 <95% and lasts for more than 10 minutes. They can be active for a long time in an oxygen-deficient environment, can work and exercise normally, and have little effect on participating in hypoxic dangerous operations.

[0075] The decrease rate of blood oxygen saturation during the test of the subject was Among them, V1 max is the maximum value of V1 under the current hypoxia sensitivity classification; for example, when the hypoxia sensitivity classification is extremely sensitive, V1 max The value is 90. The larger the value, the longer the period of V1. The decline rate represents the adaptation of the operator to the hypoxic environment during the hypoxia assessment. The larger the decline rate, the better the operator's adaptation to the hypoxic environment.

[0076] The rate of increase in blood oxygen saturation during the test period of the subject was Among them, V2 max It is the maximum value of V2 under the current hypoxia sensitivity classification. For example, when the hypoxia sensitivity classification is extremely sensitive, V2 max The smaller the value, the shorter the V2 cycle is, and the shorter the recovery cycle time in the hypoxic environment is, which means that the operator's body has a stronger ability to adapt to hypoxia.

[0077] The following is a detailed description of the execution process of the hypoxia adaptation training module. For workers whose hypoxia assessment types are R1, R2, and R3, hypoxia adaptation training can be carried out according to the hypoxia adaptation training plan. After the training, the workers will be evaluated again. If the assessment type is better than the first time, the next stage can be carried out according to the adaptation training plan. The most ideal type is that the worker's hypoxia assessment is adaptive type R4. However, if the time span of the hypoxia adaptation training period exceeds the preset period, the assessment result is mild sensitive type R3. He can also participate in the work. Safety measures need to be taken as required, and each work should not exceed 30 minutes.

[0078] like Figure 7As shown, if the operator undergoes hypoxia assessment for the first time and the assessment type is extremely sensitive type R1, after completing the adaptation training according to the A1 mode in the hypoxia adaptation training plan corresponding to the hypoxia assessment type extremely sensitive type R1, the hypoxia assessment is performed again and the assessment type is moderately sensitive type R2; then, after completing the adaptation training according to the B1 mode in the hypoxia adaptation training plan corresponding to the hypoxia assessment type moderately sensitive type R2, the hypoxia assessment is performed for the third time and the assessment type is slightly sensitive type R3. Among them, for subjects or operators whose assessment results are adaptive type R4, training mode D1 can be used for training, or no training is required. The comparison table of hypoxia assessment types and hypoxia adaptation training types is shown in Table 1.

[0079] Table 1 Comparison table of hypoxia assessment classification and hypoxia adaptation training classification

[0080]

[0081] In order to clearly explain the entire process of the present invention, a specific simulation experiment case is given below.

[0082] Before entering an oxygen-deficient hazardous area to perform oxygen-deficient hazardous work, operators use the oxygen-deficient assessment module to conduct an assessment.

[0083] After turning on the external power switch of the equipment, the whole machine is powered on, the display and control device works normally, the equipment self-checks, the environmental detection mechanism starts, and the ambient temperature and humidity are fed back to the control mechanism. The display and control device appears in two modes: the first is the hypoxia assessment mode; the second is the hypoxia adaptation training mode. After the operator enters the identity information, select the first hypoxia assessment mode: hypoxia assessment mode. Figure 8 As shown in the figure, after the operator completes the hypoxia assessment, the data is:

[0084] 1) The time point when the operator's blood oxygen begins to decrease during the assessment is T0 = 30s;

[0085] 2) The time point when the blood oxygen level drops to 85% during the operator's assessment is T1 = 80s

[0086] 3) When the operator's blood oxygen level drops to 85%, the time point when the blood oxygen level recovers to 95% is T2 = 250s.

[0087] The recorded time is used to evaluate the worker's blood oxygen decrease period (V1) and increase period (V2).

[0088]

[0089] According to the above assessment results, in the hypoxia assessment classification, the extremely sensitive type (R1); R1∈(V1≤90s, V2≤180s), the worker's blood oxygen rise period V1=50S, and the blood oxygen drop period V2=170s, meet the extremely sensitive type R1. If the worker enters a hypoxic hazardous place to work, personal injury may occur. Therefore, the worker is not suitable to work in a hypoxic hazardous place, and can also carry out adaptation training to improve hypoxic sensitivity.

[0090] The process of hypoxia adaptation training is as follows: after turning on the external power switch, the whole machine is powered on, the display and control device works normally, the equipment self-checks, the environmental detection mechanism starts, and the ambient temperature and humidity are fed back to the control mechanism. The display and control device appears in two modes: the first is the hypoxia assessment mode; the second is the hypoxia adaptation training mode. The operator selects the second hypoxia adaptation training mode, enters the system configuration, and conducts hypoxia adaptation training for the operator according to the hypoxia assessment classification results. If the hypoxia assessment classification is extremely sensitive type R1, hypoxia adaptation training can be conducted according to Table 2.

[0091] Table 2: Hypoxia adaptation training for extremely sensitive patients

[0092]

[0093] like Fig. 9 As shown in the figure, after the hypoxia adaptation training, the operators were evaluated for hypoxia for the second time, and the data were as follows:

[0094] T0′=40s, T1′=140s, T2′=280s

[0095]

[0096] According to the evaluation results, the operator belongs to the moderately sensitive type R2; R2 = V1 ≤ 120s, V2 ≤ 150s. The hypoxia evaluation classification through adaptation training is better than the first evaluation. V1′ and V2′ are compared with V1 and V2, and X1′ and X2′ are compared with X1 and X2. There is a great improvement, but the operator belongs to the moderately sensitive type R2 and is not suitable for working in hypoxic hazardous places. Continued training is required. By comparing the two evaluation data, after the operator's hypoxia adaptation training, the various data are better than the first evaluation. By comparing the descent rate and the ascent rate, the operator has gradually established adaptation to the hypoxic environment. This shows that hypoxia adaptation training has a beneficial effect on the improvement of hypoxia types.

[0097] Through the above technical scheme, the present invention detects the hypoxia reaction of the workers in the hypoxic places, and which hypoxia sensitive classification they are in, and can perform the next hypoxia adaptation training according to the hypoxia sensitive classification of the evaluation system to solve the intolerance of the subjects. At the same time, after training, it can finally determine which subjects are not suitable for working in hypoxic environments, thereby ensuring the personal safety of the workers. The hypoxia assessment and training system of the present invention is very good for detecting the hypoxia reaction of the workers in the hypoxic places, and which hypoxia sensitive classification they are in, and can perform the next hypoxia adaptation training according to the hypoxia sensitive classification of the evaluation system. At the same time, this hypoxia assessment and training system can be applied to the hypoxia assessment and adaptation of people who live in the plateau for a short time or enter the plateau quickly, the hypoxia assessment and training of people who are undergoing hypoxia physical training, and the hypoxia rehabilitation training of people who are recovering from hypoxia.

[0098] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hypoxia assessment and training system, characterized in that: Including hypoxia assessment module and hypoxia adaptation training module, The hypoxia assessment module is used to classify the hypoxia sensitivity of the subject according to the physical index data of the subject during the test, into extremely sensitive type, moderately sensitive type, slightly sensitive type and adaptive type; The hypoxia adaptation training module is used to perform hypoxia adaptation training on subjects whose hypoxia sensitivity typing is extremely sensitive, moderately sensitive, and slightly sensitive. After the training is completed, the subjects return to the hypoxia assessment module for hypoxia sensitivity typing. If the result of hypoxia sensitivity typing is better than the previous one, the next hypoxia adaptation training will continue until the final hypoxia sensitivity typing is adaptive type or the hypoxia sensitivity typing is slightly sensitive but the hypoxia adaptation training span period exceeds the preset period, and it is determined that the subject is able to enter the hypoxic environment to work, otherwise it is determined that the subject is not suitable for working in the hypoxic environment.

2. A hypoxia assessment and training system according to claim 1, characterized in that: It also includes a display and control device, an air supply mechanism, an oxygen deficiency concentration percentage mechanism, a control mechanism, a biofeedback mechanism and an environmental detection mechanism; A gas supply mechanism, used to produce anoxic gas through a nitrogen production assembly, and to deliver the produced anoxic gas through a second control valve and a third control valve through a gas outlet to a normal pressure hypoxia mask worn by a subject through a first control valve, an oxygen concentration percentage mechanism and a control mechanism; The oxygen-deficient concentration percentage mechanism is used to receive the oxygen-deficient gas produced by the nitrogen production component and adjust the oxygen-deficient concentration percentage according to the instruction issued by the control mechanism, produce oxygen-deficient gas of corresponding concentration, and feed back the result to the display and control device through the control mechanism; The biofeedback mechanism is used to monitor the operator's blood oxygen, heart rate, blood pressure, respiratory rate and body temperature in real time, and feed back the monitoring results to the display and control device through the control mechanism; The environmental detection mechanism is used to detect the environmental temperature and humidity, and feed back to the display and control device through the control mechanism; The control mechanism is used to send an instruction of the hypoxia concentration percentage to the hypoxia concentration percentage mechanism after receiving the instruction sent by the display and control device, control the start and stop of the first control valve, the second solenoid valve and the third solenoid valve, and at the same time receive feedback data from the hypoxia concentration percentage mechanism, the biofeedback mechanism and the environmental detection mechanism and upload it to the display and control device.

3. A hypoxia assessment and training system according to claim 2, characterized in that: The process of performing hypoxia sensitivity typing on the subject is: Hypoxic gas with a preset hypoxia concentration percentage is delivered to the subject. During the test, the subject's blood oxygen saturation is measured in real time using a finger-clip pulse oximeter. When the blood oxygen saturation reaches 85%, the system sends a command to the control mechanism, and the control mechanism opens the third control valve. At the same time, the first control valve is opened to exhaust the hypoxic gas in the pipeline, and the sound and light alarm valve in the control mechanism is opened. Then normal air is inhaled until the subject's blood oxygen saturation returns to a normal level of 95%. At this time, the first test is completed, and the time T0 when the blood oxygen saturation begins to decrease, the time T1 when the blood oxygen saturation reaches 85%, and the time T2 when the blood oxygen saturation returns to 95% are recorded. The time period V1 for the subject to inhale hypoxic gas before the blood oxygen saturation reaches 85% is calculated based on T0 and T1. The time period V2 required for the blood oxygen saturation to return to 95% when normal air is inhaled is calculated based on T2 and T1. The hypoxia sensitivity typing is determined based on the range of V1 and V2.

4. A hypoxia assessment and training system according to claim 3, characterized in that: The time period V1 for the subject to inhale hypoxic gas before the blood oxygen saturation reaches 85% is calculated based on T0 and T1, the time period V2 required for the blood oxygen saturation to recover to 95% when normal air is inhaled is calculated based on T2 and T1, and the hypoxia sensitivity classification is determined based on the range of V1 and V2, including: V1=T1-T0 V2=T2-T1 When V1≤B, V2≤F, the hypoxia sensitivity classification is extremely sensitive; When V1≤C, V2≤D, the hypoxia sensitivity classification is moderately sensitive; When V1 is B-E and V2 is A-B, the hypoxia sensitivity classification is mildly sensitive; When V1 and V2 are other than the above conditions, the hypoxia-sensitive classification is adaptive; Among them, the units of A, B, C, D, E, and F are all seconds, and A<B<C<D<E<F.

5. A hypoxia assessment and training system according to claim 4, characterized in that: The values ​​of A, B, C, D, E, and F are 30, 90, 120, 150, 160, and 180, respectively. When V1≤90s, V2≤180s, the hypoxia sensitivity classification is extremely sensitive; When V1≤120s, V2≤150s, the hypoxia sensitivity classification is moderately sensitive; When V1 is 90s-160s and V2 is 30s-90s, the hypoxia sensitivity type is mildly sensitive; When V1 and V2 are other than the above, the hypoxia-sensitive typing is adaptive.

6. A hypoxia assessment and training system according to claim 5, characterized in that: The blood oxygen saturation is between 85% and 95% and lasts for more than 10 minutes, and the hypoxia sensitivity classification is adaptive.

7. The hypoxia assessment and training system according to claim 4, characterized in that: The decrease rate of blood oxygen saturation during the test of the subject was Among them, V1 max It is the maximum value of V1 under the current hypoxia sensitivity classification; The rate of increase in blood oxygen saturation during the test period of the subject was Among them, V2 max It is the maximum value of V2 under the current hypoxia-sensitive classification.

8. The hypoxia assessment and training system according to claim 1, characterized in that: The hypoxia adaptation training module has training modes A1, B1 and C1 for hypoxia adaptation training for subjects with hypoxia sensitivity types of extremely sensitive, moderately sensitive and slightly sensitive, respectively.

9. A hypoxia assessment and training system according to claim 8, characterized in that: The hypoxia adaptation training module is also used for: If the subject undergoes hypoxia assessment for the first time and the hypoxia sensitivity type is extremely sensitive, adaptation training is performed according to the hypoxia adaptation training mode A1 corresponding to the extremely sensitive type. After completion, the hypoxia assessment is performed again and the hypoxia sensitivity type is moderately sensitive. Subsequently, adaptation training is performed according to the hypoxia adaptation training mode B1 corresponding to the moderately sensitive type. After completion, the hypoxia assessment is performed for the third time and the hypoxia sensitivity type is slightly sensitive. Training is continued accordingly until the final hypoxia sensitivity type is adapted or the hypoxia sensitivity type is slightly sensitive but the hypoxia adaptation training span period exceeds the preset period, the subject is judged to be able to work in the hypoxic environment, otherwise, the subject is judged to be unsuitable for working in the hypoxic environment.

10. The hypoxia assessment and training system according to claim 8, characterized in that: The training mode A1 is training at a hypoxia concentration percentage of 19.6% for 5 days, 30 minutes per day, then training at a hypoxia concentration percentage of 18.2% for 5 days, 30 minutes per day, and finally training at a hypoxia concentration percentage of 17.0% for 5 days, 30 minutes per day; the training mode B1 is training at a hypoxia concentration percentage of 18.2% for 5 days, 30 minutes per day, then training at a hypoxia concentration percentage of 17.0% for 5 days, 30 minutes per day, and finally training at a hypoxia concentration percentage of 15.8% for 5 days, 30 minutes per day; the training mode C1 is training at a hypoxia concentration percentage of 15.8% for 5 days, 30 minutes per day, then training at a hypoxia concentration percentage of 13.7% for 5 days, 30 minutes per day, and finally training at a hypoxia concentration percentage of 11.7% for 5 days, 30 minutes per day.

Images