A multi-mode integrated respiratory protection headgear system

Abstract

The utility model discloses a multi -mode integrated breathing protection helmet system, including protection helmet body and gas supply device, and the inside installation of protection helmet body has the brain electricity collection unit, and the gas supply device includes filter air supply unit, empty call gas supply unit and automatic switching cavity, still include control unit and power supply unit. The brain electricity collection unit is used to adopt the brain electricity signal of operating personnel, and the operating personnel intention is identified through the control unit, and according to operating personnel intention drive protection helmet and carry out filter air supply and empty call gas supply mode switching, do not need operating personnel manual operation, effectively solve the inconvenient situation of empty call filter integrated protection helmet use operation, and the quick control ability of protection helmet in operating environment is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of respiratory protection technology, and in particular to a multi-mode integrated respiratory protection helmet system. Background Technology

[0002] Current protective helmets primarily achieve integrated respiratory protection for the head and face by connecting a single filter-and-air supply device or an air respirator. However, single-mode respiratory helmets are insufficient to meet the needs of missions in complex, contaminated environments. Currently, there are no multi-mode integrated respiratory helmets on the market. Multi-mode integrated respiratory helmets combine a filter-and-air supply mode and an air respirator mode, meeting the respiratory protection needs of various levels for the head and face. By connecting the helmet to the backpack filter-and-air supply device and air respirator, personnel can enter contaminated environments and switch between the filter-and-air supply mode and the air respirator mode depending on the level of contamination. Currently, the switching between the multi-mode integrated filtration and air supply modes and the breathing apparatus mode is mainly done manually. Before entering a contaminated environment, it is necessary to assess the environment in advance and switch to the appropriate working mode accordingly. However, this method has potential risks. For example, if the worker's working environment changes, the worker may not be able to identify and switch in time, which will threaten the worker's life safety. At the same time, it is also very inconvenient to switch the working mode or manually adjust the air volume of the filter and air supply device worn on the back, especially when using full-body protection with protective clothing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the problems existing in the background technology mentioned above and provide a multi-mode integrated respiratory protective helmet system. The system uses the operator's brain signals through an EEG acquisition unit, identifies the operator's intentions through a control unit, and drives the protective helmet system to switch between filtered air supply and air-breathing modes according to the operator's intentions. This eliminates the need for manual operation by the operator, effectively solving the problem of inconvenient operation of integrated air-breathing and filtering protective helmets and greatly improving the quick and easy operation capability of protective helmets in the working environment.

[0004] To achieve the aforementioned technical features, the present invention aims to provide a multi-mode integrated respiratory protection helmet system, comprising a helmet body and an air supply device. The helmet body houses an EEG acquisition unit. The air supply device includes a filtering air supply unit, an air-breathing supply unit, and an automatic switching chamber. The air outlet of the filtering air supply unit is connected to the air supply duct of the automatic switching chamber, and the air outlet of the air-breathing supply unit is connected to the air-breathing duct of the automatic switching chamber. A filtering air supply solenoid valve and an air-breathing supply solenoid valve are respectively installed on the air supply duct and the air-breathing duct. The air outlet of the automatic switching chamber is connected to the air supply interface of the helmet body via an air supply pipe. The system also includes a control unit and a power supply unit. The control unit is connected to the filtering air supply unit, the air-breathing supply unit, the EEG acquisition unit, the filtering air supply solenoid valve, and the air-breathing supply solenoid valve via wired or wireless means. The power supply unit is electrically connected to the control unit, the filtering air supply unit, the air-breathing supply unit, the EEG acquisition unit, the filtering air supply solenoid valve, and the air-breathing supply solenoid valve.

[0005] The EEG acquisition unit includes EEG electrodes, a signal amplification and conditioning module, a microcontroller, and a communication module. A buffer layer is fixedly installed inside the protective helmet body, and multiple electrode sockets are distributed within the buffer layer. The EEG electrodes are installed on the electrode sockets, and the electrode sockets are electrically connected to the signal amplification and conditioning module via wires. The signal amplification and conditioning module is electrically connected to the microcontroller, the microcontroller is electrically connected to the communication module, and the communication module is communicatively connected to the control unit.

[0006] The filtration and air supply unit includes a filtration and air supply chamber, a miniature DC fan, and an exhaust gas monitoring unit. At least one filter canister is installed on the air inlet port of the filtration and air supply chamber, and a miniature DC fan is installed on the air outlet port of the filtration and air supply chamber. The air outlet of the miniature DC fan is connected to the air supply duct through the filtration and air supply pipeline. An exhaust gas monitoring unit is installed inside the filtration and air supply chamber and is electrically connected to the control unit.

[0007] The air respirator supply unit includes an air respirator. One end of the air cylinder pressure regulator of the air respirator is equipped with an air respirator supply line, which is connected to the air respirator airway. The other end of the air cylinder pressure regulator is equipped with an air cylinder pressure detection module, which is electrically connected to the control unit.

[0008] It also includes an environmental monitoring module, which is installed on the protective helmet body or the air supply device and is electrically connected to the control unit.

[0009] It also includes a display unit, which includes a display driver module and a display module. The display module is electrically connected to the display driver module, and the display driver module is electrically connected to the control unit.

[0010] The control unit includes a first microprocessor module and a second microprocessor module. The first microprocessor module is used to run EEG evoked stimulation software, transmit tag data, and acquire sensor signals. The second microprocessor module is used to run EEG processing algorithms and provide corresponding control commands to drive peripherals.

[0011] The filter air supply solenoid valve and the breathing air supply solenoid valve are electrically connected to the drive module, the drive module, the micro DC fan and the exhaust gas monitoring unit are electrically connected to the fan switching control module, and the fan switching control module is electrically connected to the second microprocessor module through a communication interface.

[0012] The power supply unit includes a power module and multiple voltage converters. The power module is electrically connected to each voltage converter, and each voltage converter is electrically connected to the electrical components that require power.

[0013] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0014] 1. The protective helmet body of this utility model is worn on the head of the worker. The air supply device adopts a backpack-style structure, which can be carried on the worker's shoulder for easy movement. The EEG acquisition unit is used to collect the worker's EEG signals. The control unit recognizes the worker's intentions and drives the protective helmet to switch between filtered air supply and air-breathing modes according to the worker's intentions. No manual operation is required from the worker, effectively solving the problem of inconvenient operation of integrated air-breathing and filtering protective helmets, and greatly improving the quick and easy operation capability of the protective helmet in the working environment.

[0015] 2. This utility model can identify the operator's intention based on the operator's brainwave signal and drive the protective helmet to switch between filtering and air supply modes according to the operator's intention. At the same time, in the air supply mode, it can automatically adjust the filtering and air supply volume according to the identified brainwave signal, without the need for manual operation by the operator. This effectively solves the problem of inconvenience in using and operating integrated air-breathing and filtering protective helmets and greatly improves the quick and easy operation capability of protective helmets in the working environment.

[0016] 3. This utility model monitors the contaminated environment, the status of the air respirator, and the usage status of the filter. It can provide data on the contaminated environment, the remaining pressure of the air respirator, and the penetration status of the filter, which can be used to assist operators in making decisions, ensuring that operators can more accurately switch work modes and effectively protect the safety of operators.

[0017] 4. This utility model adopts an integrated power supply, which integrates the power module through the back panel and supplies power to the entire system through a centralized power supply. There is no need to set up a separate power supply at each module setting point, and the structure and usage are simple.

[0018] 5. This utility model integrates a filter air supply, an air respirator, an automatic switch, a power supply, and an EEG processing component through a back panel, achieving a high degree of integration while reducing head load and facilitating the wearing and use of protective helmets.

[0019] 6. This utility model adopts a modular design of the multi-mode integrated respiratory protection helmet EEG control system, which has a simple structure, requires no manual operation, and is easy to use, effectively solving the problem of inconvenient operation of multi-mode integrated air breathing filter protective helmets. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the interior of the protective helmet of this utility model.

[0023] Figure 3 This is the overall circuit structure diagram of this utility model.

[0024] Figure 4 This is a schematic diagram of the internal structure of the EEG acquisition cavity of this utility model.

[0025] Figure 5 This is a schematic diagram of the interior of the processing and control cavity of this utility model.

[0026] Figure 6 This is a schematic diagram of the interior of the automatic switching cavity of this utility model.

[0027] Figure label:

[0028] 1. Protective helmet body; 2. Buffer layer; 3. Electrode socket; 4. EEG electrodes; 5. Signal amplification and conditioning module; 6. Microcontroller; 7. Communication module; 8. EEG acquisition cavity; 9. First microprocessor module; 10. Wireless communication module; 11. Display driver module; 12. Display module; 13. Second microprocessor module; 14. Communication interface; 15. Processing and control cavity; 16. Air supply device; 17. Filtered air supply cavity; 18. Fan switching control module; 19. Miniature DC fan; 20. Air supply duct; 21. Filtered air supply duct; 22. Air breathing supply duct; 23. Automatic switching cavity; 24. Air breathing duct; 25. Air supply duct; 26. Filtered air supply solenoid valve; 27. Air breathing supply solenoid valve; 28. Drive module; 29. ​​First voltage conversion module; 30. Second voltage conversion module; 31. Third voltage conversion module; 32. Power supply module; 33. Air respirator; 34. Environmental monitoring module; 35. Exhaust gas monitoring unit. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0031] Example 1:

[0032] See Figures 1 to 6 A multi-mode integrated respiratory protection helmet system includes a helmet body 1 and an air supply device 16. The helmet body 1 houses an electroencephalogram (EEG) acquisition unit. The air supply device 16 includes a filtering air supply unit, an air-breathing supply unit, and an automatic switching chamber 23. The air outlet of the filtering air supply unit is connected to the air supply duct 25 of the automatic switching chamber 23, and the air outlet of the air-breathing supply unit is connected to the air-breathing duct 24 of the automatic switching chamber 23. (See also...) Figure 6 The air supply duct 25 and the air exhalation duct 24 are respectively equipped with a filter air supply solenoid valve 26 and an air exhalation solenoid valve 27. The air outlet of the automatic switching cavity 23 is connected to the air supply interface of the protective helmet body 1 through the air supply pipe 20. It also includes a control unit and a power supply unit. The control unit is connected to the filter air supply unit, the air exhalation unit, the EEG acquisition unit, the filter air supply solenoid valve 26 and the air exhalation solenoid valve 27 by wired or wireless means. The power supply unit is electrically connected to the control unit, the filter air supply unit, the air exhalation unit, the EEG acquisition unit, the filter air supply solenoid valve 26 and the air exhalation solenoid valve 27.

[0033] The protective helmet body 1 is worn on the worker's head. The air supply device 16 adopts a backpack-style structure, allowing the worker to carry it on their shoulder for easy movement. The EEG acquisition unit uses the worker's brainwave signals, identifies the worker's intentions through the control unit, and drives the protective helmet to switch between filtered air supply and air-breathing modes based on the worker's intentions. This eliminates the need for manual operation by the worker, effectively solving the inconvenience of using integrated air-breathing and filtering protective helmets and significantly improving the helmet's quick and easy operation in the work environment.

[0034] In this embodiment, the protective helmet body 1 can be a smart helmet with brainwave control capability disclosed in CN119184404A. When applied to this utility model, the control unit can be electrically connected or wirelessly connected to the third communication module in the document, and the air supply device 16 can be controlled through the protective helmet body 1.

[0035] Specifically, the protective helmet body 1 is a full-face helmet. The breathing visor of the protective helmet is integrated with the helmet body into a fully enclosed structure. The helmet face is equipped with a spring-loaded filter breathing mode exhalation valve seat. The spring travel is adjusted by the exhalation valve seat adjustment knob to change the resistance of the exhalation valve inside the exhalation valve seat, switching the working mode of the helmet face exhalation valve. The protective helmet face is equipped with an air supply interface, and the air supply interface has a built-in intake valve plate. The air supply device 16 is a double-shoulder carrying type.

[0036] In this embodiment, the switching between air-breathing and filtered air-breathing modes is achieved through the filtered air-breathing solenoid valve 26 and the air-breathing supply solenoid valve 27. When filtered air-breathing is required, the filtered air-breathing solenoid valve 26 is opened and the air-breathing supply solenoid valve 27 is closed. Air is filtered by the filtered air-breathing unit, then passes through the filtered air-breathing solenoid valve 26 and the air supply pipe 20, and is delivered into the protective helmet body 1. When air-breathing is required, the filtered air-breathing solenoid valve 26 is closed and the air-breathing supply solenoid valve 27 is opened. Gas from the air-breathing supply unit's cylinder passes through the air-breathing supply solenoid valve 27 and the air supply pipe 20, and is delivered into the protective helmet body 1.

[0037] See Figure 2 The EEG acquisition unit includes EEG electrodes 4, a signal amplification and conditioning module 5, a microcontroller 6, and a communication module 7. A buffer layer 2 is fixedly installed inside the protective helmet body 1. Multiple electrode sockets 3 are distributed in the buffer layer 2. The EEG electrodes 4 are installed on the electrode sockets 3. The electrode sockets 3 are electrically connected to the signal amplification and conditioning module 5 through wires. The signal amplification and conditioning module 5 is electrically connected to the microcontroller 6. The microcontroller 6 is electrically connected to the communication module 7. The communication module 7 is communicatively connected to the control unit.

[0038] Impact cushioning for the head is provided by buffer layer 2. Buffer layer 2 is designed to conform to the shape of the helmet and is made of polystyrene material, covering the top and back of the worker's head when worn.

[0039] Electroencephalogram (EEG) electrodes are connected via electrode socket 3. Electrode socket 3 is a hollow cylindrical structure with an annular metal socket inside, which is connected to the signal line.

[0040] EEG signals from the operator are collected using EEG electrodes 4. EEG electrodes 4 consist of 16 groups of EEG electrodes, which are distributed at the top and back of the buffer layer 2.

[0041] The signal amplification and conditioning module 5 performs EEG signal amplification, filtering, and analog-to-digital conversion. The signal amplification and conditioning module 5 includes a multi-channel signal amplification and high-precision AD module.

[0042] The microcontroller 6 completes the EEG data processing, EEG data and tag aggregation and transmission.

[0043] See Figure 1 The air supply and filtration unit includes an air supply and filtration chamber 17, a miniature DC fan 19, and an exhaust gas monitoring unit 35. At least one filter canister is installed on the air inlet port of the air supply and filtration chamber 17, and the miniature DC fan 19 is installed on the air outlet port of the air supply and filtration chamber 17. The air outlet of the miniature DC fan 19 is connected to the air supply duct 25 through the air supply and filtration duct 21. The exhaust gas monitoring unit 35 is installed inside the air supply and filtration chamber 17 and is electrically connected to the control unit.

[0044] Filtered air supply is achieved by connecting the filter canisters to the air supply chamber 17. The air supply chamber 17 is a flat, double-canister structure with two filter canister interfaces and one air outlet. The filter canisters are screwed onto the filter canister interfaces. A miniature DC fan 19 is installed at the air outlet.

[0045] The filtered clean gas is drawn by a miniature DC fan 19 and supplied to the protective helmet body 1.

[0046] The exhaust gas monitoring unit 35 monitors the exhaust gas condition of the filter element. If the exhaust gas concentration is detected, it is determined that the filter element has been penetrated. The exhaust gas monitoring unit 35 has built-in sensors for detecting various toxic and harmful gases.

[0047] See Figure 1 The breathing apparatus supply unit includes a breathing apparatus 33. One end of the air cylinder pressure reducer of the breathing apparatus 33 is equipped with a breathing apparatus supply line 22, which is connected to the breathing air passage 24. The other end of the air cylinder pressure reducer is equipped with a cylinder pressure detection module, which is electrically connected to the control unit.

[0048] The air respirator 33 provides a sealed breathing environment for the protective helmet. The air respirator 33 includes a single air cylinder, a pressure reducing valve, and a cylinder pressure monitoring module. In this embodiment, the cylinder pressure monitoring module is a wireless pressure monitoring module.

[0049] Furthermore, it also includes an environmental monitoring module 34, which is installed on the protective helmet body 1 or the air supply device 16 and is electrically connected to the control unit. The environmental monitoring module 34 has built-in oxygen and various toxic and harmful gas sensing units to detect the concentration of oxygen and toxic and harmful gases in the air.

[0050] In this embodiment, see Figure 1The environmental monitoring module 34 is installed on the outer wall of the protective helmet body 1.

[0051] Further, see Figure 1 , 3 It also includes a display unit, which includes a display driver module 11 and a display module 12. The display module 12 is electrically connected to the display driver module 11, and the display driver module 11 is electrically connected to the control unit.

[0052] The display module 12 displays the EEG-evoked stimulation interface, environmental data, gas cylinder pressure data, and exhaust gas data. The display module 12 uses a display screen with a refresh rate of 120Hz. The display module 12 is mounted on the eye area of ​​the protective helmet body 1, see [reference needed]. Figure 1 .

[0053] See Figure 3 The control unit includes a first microprocessor module 9 and a second microprocessor module 13. The first microprocessor module 9 is used to run EEG evoked stimulation software, transmit tag data, and acquire sensor signals. The second microprocessor module 13 is used to run EEG processing algorithms and give corresponding control commands to drive peripherals.

[0054] Specifically, the second microprocessor module 13 is electrically connected to the communication module 7 and the first microprocessor module 9, and the second microprocessor module 13 is electrically connected to the communication interface 14.

[0055] The first microprocessor module 9 and the second microprocessor module 13 contain a high-performance processor and its peripheral circuits, storage module, and communication conversion module.

[0056] See Figure 3 The filter air supply solenoid valve 26 and the breathing air supply solenoid valve 27 are electrically connected to the drive module 28, the drive module 28, the micro DC fan 19 and the exhaust gas monitoring unit 35 are electrically connected to the fan switching control module 18, and the fan switching control module 18 is electrically connected to the second microprocessor module 13 through the communication interface 14.

[0057] See Figure 3 The power supply unit includes a power module 32 and multiple voltage converters. The power module 32 is electrically connected to each voltage converter, and each voltage converter is electrically connected to the electrical components that need to be powered.

[0058] In this embodiment, combined with Figure 3The voltage converter includes a first voltage conversion module 29, a second voltage conversion module 30, and a third voltage conversion module 31. The first voltage conversion module 29 is electrically connected to the signal amplification and conditioning module 5, the communication module 7, and the microcontroller 6 to provide power. The second voltage conversion module 30 is electrically connected to the first microprocessor module 9, the wireless communication module 10, the display driver module 11, and the environmental monitoring module 34 to provide power. The third voltage conversion module 31 is electrically connected to the second microprocessor module 13, the communication interface 14, the fan switching control module 18, and the drive module 28 to provide power.

[0059] The first voltage conversion module 29, the second voltage conversion module 30, and the third voltage conversion module 31 are electrically connected to the power supply module 32, respectively.

[0060] The power module 32 includes a power protection module and a high-capacity rechargeable battery, and has a charging interface.

[0061] In this embodiment, see Figure 2 , 4 The protective helmet body 1 houses an EEG acquisition cavity 8, a signal amplification and conditioning module 5, a microcontroller 6, a communication module 7, and a first voltage conversion module 29. A first microprocessor module 9, a wireless communication module 10, a display driver module 11, and a second voltage conversion module 30 are located inside the protective helmet body 1. An environmental monitoring module 34 is also located inside the protective helmet body 1. The wireless communication module 10 is a Bluetooth module. The communication module 7 is a dual-channel RS-485 module.

[0062] An air respirator 33, a filtered air supply chamber 17, an automatic switching chamber 23, a power module 32, and a processing and control chamber 15 are mounted on the air supply device 16. (See also...) Figure 1 , 5 The second microprocessor module 13, the communication interface 14, and the third voltage conversion module 31 are located inside the processing and control cavity 15.

[0063] Example 2:

[0064] The method of using the multi-mode integrated respiratory protection helmet system described in Example 1 is as follows:

[0065] Step 1: When in use, the signal amplification and conditioning module 5 filters, amplifies, and converts the signal from the EEG electrodes 4 into digital signals.

[0066] Step 2: Microcontroller 6 reads the EEG electrode signals.

[0067] Step 3: The fan switching control module 18 reads the exhaust gas detection data from the exhaust gas monitoring unit 35, the second microprocessor module 13 obtains the exhaust gas detection data read by the fan switching control module 18, and the second microprocessor module 13 sends the exhaust gas detection data to the first microprocessor module 9.

[0068] Step 4: The first microprocessor module 9 reads the oxygen and toxic and harmful gas sensing data from the environmental monitoring module 34, and the first microprocessor module 9 reads the cylinder pressure data from the wireless cylinder pressure monitoring module of the air respirator 33 through the wireless communication module 10.

[0069] Step 5: The first microprocessor module 9 controls the display driver module 11 to drive the display module 12 to display the sensor data, exhaust gas detection data and gas cylinder pressure data of the environmental monitoring module 34; the first microprocessor module 9 controls the display driver module 11 to drive the display module 12 to display multiple visual evoked stimulation interfaces that flash at different frequencies, and each visual evoked stimulation interface that flashes at different frequencies corresponds to different control actions such as switching between filtered air supply and air volume.

[0070] Step 6: The first microprocessor module 9 transmits the tag data from the visual evoked stimulus interface software, and the first microprocessor module 9 transmits the tag data to the microcontroller 6.

[0071] Step 7: The microcontroller 6 sends the tag data and EEG electrode signals to the second microprocessor module 13 via the communication module 7. The second microprocessor module 13 performs feature extraction and classification on the received data and converts the classified results into corresponding control commands. The operator can make auxiliary decisions based on actual needs or based on the environment and gas cylinder pressure data displayed on the display module 12. When the displayed gas cylinder pressure data is too low, the corresponding control command for switching from air-breathing to air-breathing mode can be obtained through the corresponding visual evoked stimulation interface for switching from air-breathing to air-breathing mode. When the displayed oxygen concentration is too low or the exhaust gas shows a concentration of toxic or harmful gases, or when the concentration of toxic or harmful gases is too high, the corresponding control command for switching from air-breathing to air-breathing mode can be obtained through the corresponding visual evoked stimulation interface for switching from air-breathing to air-breathing mode. When in air-breathing mode, if the operator feels that the air volume is too large or too small, the corresponding air-breathing air volume control command can be obtained through the corresponding visual evoked stimulation interface for air-breathing.

[0072] Step 8: The second microprocessor module 13 sends the control command to the fan switching control module 18. The fan switching control module 18 parses the control command and drives the micro DC fan 19 to adjust the air supply volume according to the control command, or controls the drive module 28 to drive the filter air supply solenoid valve 26 and the air breathing solenoid valve 27 to perform corresponding actions, switching between filter air supply mode and air breathing mode. When the control command is interpreted as switching from air breathing to filter air supply mode, the fan switching control module 18 controls the drive module 28 to open the filter air supply solenoid valve 26 and close the air breathing solenoid valve 27. When the control command is interpreted as switching from filter air supply to air breathing mode, the fan switching control module 18 closes the filter air supply solenoid valve 26, opens the air breathing solenoid valve 27, and drives the micro DC fan 19 to stop running. When the control command is interpreted as the filter air supply volume control command, the fan switching control module 18 drives the micro DC fan 19 to increase or decrease the air supply volume.

[0073] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A multi-mode integrated respiratory protection helmet system, comprising a protective helmet body (1) and an air supply device (16), characterized in that: The protective helmet body (1) is equipped with an EEG acquisition unit. The air supply device (16) includes a filter air supply unit, an air-breathing supply unit, and an automatic switching chamber (23). The air outlet of the filter air supply unit is connected to the air supply duct (25) of the automatic switching chamber (23), and the air outlet of the air-breathing supply unit is connected to the air-breathing duct (24) of the automatic switching chamber (23). A filter air supply solenoid valve (26) and an air-breathing supply solenoid valve (27) are respectively installed on the air supply duct (25) and the air-breathing duct (24). The automatic switching chamber... The air outlet of the cavity (23) is connected to the air supply interface of the protective helmet body (1) through the air supply pipe (20); it also includes a control unit and a power supply unit. The control unit is connected to the filter air supply unit, the air breathing supply unit, the EEG acquisition unit, the filter air supply solenoid valve (26) and the air breathing supply solenoid valve (27) in a wired or wireless manner, and the power supply unit is electrically connected to the control unit, the filter air supply unit, the air breathing supply unit, the EEG acquisition unit, the filter air supply solenoid valve (26) and the air breathing supply solenoid valve (27).

2. The multi-mode integrated respiratory protection helmet system according to claim 1, characterized in that: The EEG acquisition unit includes EEG electrodes (4), a signal amplification and conditioning module (5), a microcontroller (6), and a communication module (7). A buffer layer (2) is fixedly installed inside the protective helmet body (1). Multiple electrode sockets (3) are distributed in the buffer layer (2). The EEG electrodes (4) are installed on the electrode sockets (3). The electrode sockets (3) are electrically connected to the signal amplification and conditioning module (5) through wires. The signal amplification and conditioning module (5) is electrically connected to the microcontroller (6). The microcontroller (6) is electrically connected to the communication module (7). The communication module (7) is connected to the control unit.

3. The multi-mode integrated respiratory protection helmet system according to claim 1, characterized in that: The air supply unit includes an air supply chamber (17), a miniature DC fan (19), and an exhaust gas monitoring unit (35). At least one filter canister is installed on the air inlet port of the air supply chamber (17), and a miniature DC fan (19) is installed on the air outlet port of the air supply chamber (17). The air outlet of the miniature DC fan (19) is connected to the air supply duct (25) through the air supply pipeline (21). An exhaust gas monitoring unit (35) is installed inside the air supply chamber (17), and the exhaust gas monitoring unit (35) is electrically connected to the control unit.

4. The multi-mode integrated respiratory protection helmet system according to claim 1, characterized in that: The air respirator supply unit includes an air respirator (33). One end of the air cylinder pressure reducer of the air respirator (33) is equipped with an air respirator supply line (22), which is connected to the air respirator airway (24). The other end of the air cylinder pressure reducer is equipped with an air cylinder pressure detection module, which is electrically connected to the control unit.

5. The multi-mode integrated respiratory protection helmet system according to claim 1, characterized in that: It also includes an environmental monitoring module (34), which is installed on the protective helmet body (1) or the air supply device (16) and is electrically connected to the control unit.

6. The multi-mode integrated respiratory protection helmet system according to claim 1, characterized in that: It also includes a display unit, which includes a display driver module (11) and a display module (12). The display module (12) is electrically connected to the display driver module (11), and the display driver module (11) is electrically connected to the control unit.

7. The multi-mode integrated respiratory protection helmet system according to claim 1, characterized in that: The control unit includes a first microprocessor module (9) and a second microprocessor module (13). The first microprocessor module (9) is used to run EEG evoked stimulation software, send tag data and collect sensor signals. The second microprocessor module (13) is used to run EEG processing algorithms and give corresponding control commands to drive peripherals.

8. The multi-mode integrated respiratory protection helmet system according to claim 7, characterized in that: The filter air supply solenoid valve (26) and the air breathing supply solenoid valve (27) are electrically connected to the drive module (28), the drive module (28), the micro DC fan (19) and the exhaust gas monitoring unit (35) are electrically connected to the fan switching control module (18), and the fan switching control module (18) is electrically connected to the second microprocessor module (13) through the communication interface (14).

9. A multi-mode integrated respiratory protection helmet system according to claim 1, characterized in that: The power supply unit includes a power module (32) and multiple voltage converters. The power module (32) is electrically connected to each voltage converter, and each voltage converter is electrically connected to the electrical components that need to be powered.

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