A smart secondhand smoke instantaneous direct discharge system and method based on lip touch sensing and master-slave collaboration

Abstract

This invention discloses an intelligent secondhand smoke instantaneous direct exhaust system and method based on lip touch sensing and master-slave collaboration, including a mask, a main unit, and a slave unit. The air outlet at the rear of the main unit and the air inlet at the front of the slave unit are connected by a master-slave connecting pipe, and the main unit and the slave unit communicate with each other wirelessly. The mask is set at the inlet of the main unit and is used to fasten to the smoker's mouth and nose to collect secondhand smoke. After the main unit collects the smoking action signal, it controls the slave unit to extract and exhaust the secondhand smoke. The mask is detachably connected to the silicone mouthpiece fixing bracket at the front of the main unit. This invention realizes a series of operations of lighting and exhausting smoke through the cooperation of the main unit and the slave unit, and flexibly adjusts the fan speed according to the sensing state of the touch electrode to achieve instant smoke exhaust.

Description

Technical Field

[0001] This invention relates to the field of smoke exhaust system technology, specifically to an intelligent secondhand smoke instantaneous direct exhaust system and method that can control the speed of the smoke exhaust fan in real time through lip contact sensing. Background Technology

[0002] Cigarettes are a very common consumer product in daily life. In reality, there are many cases of smoking indoors. Since indoor areas are usually small, secondhand smoke can permeate the entire room, seriously endangering the physical and mental health of family members and colleagues. Therefore, in order to ensure that the air inside the room can be expelled as soon as possible, secondhand smoke is usually absorbed, filtered, and discharged through air filtration and purification devices.

[0003] Currently, common secondhand smoke extraction devices mainly include three types: passive purification, active collection and storage, and simple direct emission. Passive purification devices (such as air purifiers) work by filtering secondhand smoke after it has spread throughout the space. However, they suffer from problems such as delayed processing, inability to remove residues from surfaces and clothing, the need for frequent filter replacements, and high costs.

[0004] Active collection and storage devices collect smoke at the smoker's mouth and nose and compress it into a high-pressure tank. However, these systems are structurally complex, costly, and inconvenient to carry. They also pose safety hazards associated with pressure vessels, making them impractical for widespread civilian use and large-scale production. Simple direct-exhaust devices often use wired connections between the smoke extraction end and the power unit, or only simple switch controls. This fails to achieve real-time, intelligent adjustment of exhaust power based on actual smoking behavior, resulting in high energy consumption, noise levels, or low exhaust efficiency, leading to a poor user experience. Therefore, the market urgently needs a new solution that can achieve immediate and efficient smoke treatment at the source, while also possessing intelligent interaction, excellent energy efficiency, reliable structure, and ease of mass production. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an intelligent secondhand smoke instant direct exhaust system and method based on lip touch sensing and master-slave collaboration, which can control the operation of the smoke exhaust fan through lip touch sensing to achieve instant smoke exhaust.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows.

[0007] A smart secondhand smoke instantaneous direct exhaust system based on lip touch sensing and master-slave collaboration includes a mask, a main unit, and a slave unit. The air outlet at the rear of the main unit and the air inlet at the front of the slave unit are connected by a master-slave connecting pipe, and the main unit and the slave unit communicate with each other via wired or wireless means. The mask is set at the inlet of the main unit and is used to fasten to the smoker's mouth and nose to collect secondhand smoke. After the main unit collects the smoking action signal, it controls the slave unit to extract and exhaust the secondhand smoke. The mask is detachably connected to the silicone nozzle fixing bracket at the front of the main unit.

[0008] The aforementioned intelligent secondhand smoke instant direct exhaust system based on lip touch sensing and master-slave collaboration includes a silicone mouthpiece holder at the front of the main unit for inserting cigarettes, with a silicone mouthpiece installed at the front of the holder to facilitate smoking. A tactile electrode for sensing the contact state between the lips and the mouthpiece during smoking is also installed within the silicone mouthpiece holder at the rear of the mouthpiece. The main unit contains a main circuit board and a main battery. The main battery powers the various modules on the main circuit board. The main circuit board includes a main control module and a lip sensing module. The output of the tactile electrode is connected to the input of the lip sensing module, and the output of the lip sensing module is connected to the input of the main control module. The main unit also includes a main power switch for controlling the main unit's operation.

[0009] The aforementioned intelligent secondhand smoke instant direct exhaust system based on lip touch sensing and master-slave collaboration includes a main unit with an ignition tungsten filament for lighting cigarettes installed inside, which is electrically connected to the main unit circuit board; an ignition switch is provided on one side of the main unit; an ignition module is provided on the main unit circuit board, the input terminal of the main unit control module is connected to the output terminal of the ignition switch, the input terminal of the ignition module is connected to the output terminal of the main unit control module, and the output terminal of the ignition module is connected to the input terminal of the ignition tungsten filament.

[0010] The aforementioned intelligent secondhand smoke instant direct exhaust system based on lip touch sensing and master-slave collaboration includes an exhaust duct inside the slave unit, and a fan whose speed is adjusted according to the contact state between the lips and the silicone mouthpiece. The slave unit also houses a slave circuit board, a slave battery, and an electronic speed controller. The slave battery powers the various modules on the slave circuit board, and a slave power switch is located on the front of the slave unit. The slave circuit board includes a slave control module and a motor power supply module. The output of the motor power supply module is connected to the power supply of the fan, and the electronic speed controller is connected between the output of the slave control module and the controlled end of the fan.

[0011] The aforementioned intelligent secondhand smoke instant direct exhaust system based on lip touch sensing and master-slave collaboration includes a master antenna module on the master circuit board and a slave antenna module on the slave circuit board that communicates with the master antenna module.

[0012] A method for intelligent instant direct exhaust of secondhand smoke based on lip touch sensing and master-slave collaboration, which is implemented based on the aforementioned intelligent instant direct exhaust system for secondhand smoke based on lip touch sensing and master-slave collaboration, includes the following steps: S1. Install the mask at the inlet of the main unit. Connect the two ends of the main unit-slave unit connecting pipe to the air outlet of the main unit and the air inlet of the slave unit respectively. The air outlet of the slave unit is connected to the outdoor environment through the exhaust pipe. Press the power switch of the main unit and the power switch of the slave unit to establish a communication connection between the main unit and the slave unit. S2. When smoking, the mask is placed over the smoker's mouth and nose, and the secondhand smoke is sent into the main unit through the silicone mouthpiece. The touch electrode senses the contact state between the lips and the silicone mouthpiece in real time, and controls the speed of the fan according to the contact state, so that the smoke is discharged to the outside through the main-slave unit connecting pipe and the slave unit, and powerfully expelling the large amount of smoke produced by smoking. S3. After finishing smoking, press the main power switch and the slave power switch to turn off the main unit and the slave unit.

[0013] The above-mentioned intelligent secondhand smoke instantaneous direct exhaust method based on lip touch sensing and master-slave collaboration includes the following operations in step S2: S21. Insert the cigarette into the main unit through the cigarette passage in the center of the silicone mouthpiece, so that the burning side of the cigarette is close to the ignition tungsten wire; S22. When the ignition switch is pressed, the main control module receives the ignition switch signal and transmits the signal to the slave control module through the main antenna module and the slave antenna module. The slave control module sends a slave idle speed signal to the electronic speed controller to make the fan idle. At the same time, the main control module sends an ignition signal to the ignition module to control the ignition tungsten filament to ignite the cigarette combustion side.

[0014] S23. The contact state between the lip and the silicone nozzle is sensed in real time using tactile electrodes. When the lip contacts the silicone nozzle, the motor of the control fan gradually increases from idle speed to working speed to achieve powerful smoke exhaust. After the lip leaves the silicone nozzle, the motor of the control fan decreases from working speed to idle speed.

[0015] In the aforementioned intelligent secondhand smoke instantaneous direct exhaust method based on lip touch sensing and master-slave collaboration, in step S23, when the lips contact the silicone mouthpiece, the tactile electrode generates a signal and sends it to the host control module. The host control module then transmits the signal to the slave control module via the host antenna module and slave antenna module. The slave control module then sends an adjustment signal to the electronic speed controller, smoothly increasing the fan motor speed from idle to operating speed, forcefully expelling the large amount of smoke generated by smoking. When the user's lips leave, the contact signal disappears, and the host control module transmits the signal to the slave control module via the host antenna module and slave antenna module. The slave control module then sends an adjustment signal to the electronic speed controller, smoothly reducing the fan motor speed from operating speed back to idle.

[0016] The technological advancements achieved by this invention are as follows, thanks to the adoption of the above technical solutions.

[0017] This invention provides an intelligent secondhand smoke instantaneous direct exhaust system and method based on lip touch sensing and master-slave collaboration. The system achieves a series of operations for lighting and exhausting smoke through the cooperation of a master and slave unit. Simultaneously, the fan speed is flexibly adjusted according to the sensing state of the tactile electrodes, enabling instant smoke exhaust. By setting tactile electrodes on the back of the silicone mouthpiece to sense the contact state between the lips and the mouthpiece, the system can identify smoking actions, thereby precisely controlling the fan speed to achieve smoke exhaust, offering greater flexibility. The master unit internally uses a cylindrical filter, a supporting filter plate, and filter cotton to perform multi-stage filtration of the smoke, reducing the residue of solid, gaseous, and colloidal impurities in indoor secondhand smoke.

[0018] This application adopts a modular design, has a simple structure, is very suitable for large-scale production, has controllable costs, is easy to promote and use, and helps to mitigate the impact of some indoor secondhand smoke residues on indoor occupants. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the specific structure of the present invention; Figure 2 This is a schematic diagram of the host's specific structure; Figure 3 This is a schematic diagram showing the specific structure of the silicone nozzle and the tactile electrode. Figure 4 This is a schematic diagram of the internal structure of the main unit's casing; Figure 5 This is a schematic diagram of the internal structure of the lower casing of the main unit; Figure 6 This is a schematic diagram of the specific structure of a cylindrical filter; Figure 7 This is a schematic diagram of the internal structure of the main unit's exhaust pipe. Figure 8 This is a schematic diagram of the bottom structure of the main unit's lower casing; Figure 9 A schematic diagram of the specific structure of the ash box; Figure 10 This is a schematic diagram of the specific structure of the slave device; Figure 11 This is a schematic diagram of the internal structure of the machine's casing; Figure 12 This is a schematic diagram of the internal structure of the lower housing of the slave device; Figure 13 Schematic diagrams of silicone nozzles of different sizes; Figure 14 This is a block diagram showing the structure when the master and slave devices work together. Figure 15This is the circuit diagram of the host control module; Figure 16 This is the circuit diagram of the main unit's antenna module; Figure 17 This is the circuit diagram of the ignition module; Figure 18 This is the circuit diagram of the lip sensing module; Figure 19 This is the circuit diagram of the slave control module; Figure 20 Circuit diagram of the slave antenna module; Figure 21 Circuit diagram of the motor power supply module.

[0020] The components are: 1. Main unit; 100. Upper housing of main unit; 101. Lower housing of main unit; 102. Battery compartment cover; 103. Silicone nozzle fixing bracket; 1030. Silicone nozzle mounting part; 1031. Housing connecting part; 1032. Protruding limiting plate; 1033. Mask snap-fit ​​part; 104. Silicone nozzle; 105. Touch electrode; 106. Cylindrical filter; 107. Support filter plate; 108. Main unit circuit board; 109. Main unit battery; 110. Ignition tungsten filament; 111. Main unit exhaust pipe; 112. Connector; 113. Filter cotton; 114. Ash box; 115. Main unit power switch; 116. Ignition switch; 117. Main unit charging port; 118. First magnetic part; 119. First magnetic part mounting slot; 120. Second magnetic part; 121. Second magnetic part mounting slot. 2. Slave unit; 200. Slave unit upper housing; 201. Slave unit lower housing; 202. Slave unit power switch; 203. Slave unit charging port; 204. Slave unit air inlet duct; 205. Slave unit air outlet duct; 206. Fan; 207. Slave unit circuit board; 208. Slave unit battery; 209. Electronic speed controller; 3. Face mask, 4. Master-slave connection pipe, 5. Exhaust pipe. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] A smart secondhand smoke instantaneous direct exhaust system based on lip touch sensing and master-slave collaboration, such as Figures 1 to 21 As shown, it includes a face mask 3, a main unit 1 and a slave unit 2. The air outlet at the rear of the main unit 1 and the air inlet at the front of the slave unit 2 are connected by a main-slave connecting pipe 4. The main unit 1 and the slave unit 2 communicate with each other via wired or wireless means.

[0023] The mask 3 is installed at the inlet of the main unit 1 and is used to fasten to the smoker's mouth and nose to collect secondhand smoke. After the main unit collects the smoking action signal, it controls the slave unit to extract and exhaust the secondhand smoke.

[0024] The lower part of the mask 3 is equipped with a check valve to allow outside air to enter the mask, so that outside air can enter the main unit to assist the combustion of cigarettes, while preventing the smoke inside the main unit from being discharged through the mask.

[0025] The front end of the main unit is provided with a silicone mouthpiece holder 103 for inserting cigarettes. A silicone mouthpiece 104 is installed at the front end of the silicone mouthpiece holder 103 to facilitate smoking. A touch electrode 105 is also installed in the silicone mouthpiece holder 103 located at the rear end of the silicone mouthpiece 104 to sense the contact state between the lips and the silicone mouthpiece when smoking.

[0026] The main unit 1 is equipped with an ignition tungsten filament 110 for lighting cigarettes.

[0027] The main unit 1 also houses a main unit circuit board 108 and a main unit battery 109. The main unit circuit board 108 contains a main unit control module, an ignition module, a lip sensor module, and a main unit antenna module. The main unit battery 109 supplies power to the various modules on the main unit circuit board 108. The circuit diagram of the main unit control module is shown below. Figure 16 As shown, U1 is the main chip.

[0028] The output terminal of the tactile electrode 105 is connected to the input terminal of the lip sensing module, and the output terminal of the lip sensing module is connected to the input terminal of the host control module. The circuit diagram of the lip sensing module is shown below. Figure 19 As shown, it receives the TOUCH_PAD signal from the touch electrode 105, processes it, and sends the TOUCH_OUT signal to the host control module.

[0029] The main unit 1 is equipped with a main unit power switch 115 and an ignition switch 116 on one side. The main unit power switch 115 is used to control the power supply of the main unit, and the ignition switch 116 is used to control the ignition tungsten filament to ignite the cigarette. The main unit 1 is also equipped with a main unit charging port 117 on one side.

[0030] The ignition tungsten filament 110 is electrically connected to the main circuit board 108. The input terminal of the main control module is connected to the output terminal of the ignition switch 116. The input terminal of the ignition module is connected to the output terminal of the main control module, and the output terminal of the ignition module is connected to the input terminal of the ignition tungsten filament. The circuit diagram of the ignition module is shown below. Figure 18 As shown, it receives the fire_on signal sent by the host control module and starts the ignition tungsten filament.

[0031] When the ignition switch is pressed, the main control module sends an ignition signal to the slave unit through the main antenna module, causing the slave unit to idle during ignition; when smoking, the main control module sends a lip touch sensing signal to the slave unit through the main antenna module, causing the slave unit to adjust its working state accordingly based on the lip touch sensing signal.

[0032] The slave unit 2 has an exhaust duct inside, and a fan 206 inside the exhaust duct adjusts its speed according to the contact state between the lip and the silicone nozzle. After the tungsten filament is ignited, a signal is transmitted to the slave unit to make the fan idle.

[0033] The slave unit 2 also contains a slave circuit board 207, a slave battery 208, and an electronic speed controller 209. The slave battery 208 is used to power the various modules on the slave circuit board 207. The slave power switch 202 and the slave charging port 203 are respectively provided on the front side of the slave unit 2.

[0034] The slave circuit board 207 is equipped with a slave control module and a motor power supply module. The circuit diagram of the motor power supply module is shown below. Figure 21 As shown, the output terminal of the motor power supply module is connected to the power supply terminal of the fan 206, and the electronic speed controller 209 is connected between the output terminal of the slave control module and the controlled terminal of the fan 206.

[0035] The circuit diagram of the slave control module is as follows: Figure 20 As shown, U2 is the main chip. The main chip U2 receives the LAN-out signal sent by the slave antenna module and outputs XTALP and XTALN signals according to this signal to control the electronic speed controller to adjust the output power of the fan.

[0036] In this embodiment, a host antenna module is provided on the host circuit board 108, and a slave antenna module that communicates with the host antenna module is provided on the slave circuit board 207 to realize wireless communication between the host and the slave. The circuit diagram of the host antenna module is shown in Figure 17. It receives the LAN-IN signal sent by the host control module and sends it to the slave antenna module through antenna ANT1. The circuit diagram of the slave antenna module is shown in Figure 21. It receives the LAN-IN signal sent by the host control module through antenna ANT2 and sends the LAN-out signal to the slave control module.

[0037] The host 1 includes an upper housing 100 and a lower housing 101 that are fastened together. The upper housing 100 and the lower housing 101 are respectively provided with semi-circular grooves on their front sides. The two semi-circular grooves surround to form a circular notch. The silicone nozzle fixing bracket 103 is installed at the circular notch.

[0038] The main unit 1 is equipped with a cylindrical filter 106 that is connected to the silicone nozzle holder 103. The cylindrical filter 106 is hollow inside to form a combustion chamber for mounting cigarettes. The cylindrical filter serves the functions of filtering and heat dissipation.

[0039] The front side of the cylindrical filter 106 is connected to the rear side of the silicone nozzle holder 103, such as... Figure 6As shown, a support filter plate 107 is also provided on the rear side of the lower housing 101 of the main unit. The support filter plate 107 has a support circular hole in the center for the cylindrical filter 106 to pass through, which is used to support the rear side of the cylindrical filter.

[0040] In this embodiment, the bottom of the cylindrical filter 106 is open to facilitate the recovery of the soot after combustion.

[0041] The filter plate 107 is also equipped with filter mesh, which can filter flue gas while supporting the cylindrical filter.

[0042] The silicone nozzle 104 has a cigarette passage hole at its center for cigarettes to pass through. The size of the cigarette passage hole can be set according to the diameter of cigarettes on the market. In this embodiment, the silicone nozzle 104 has three types: large-sized cigarette passage hole, medium-sized cigarette passage hole, and small-sized cigarette passage hole.

[0043] like Figure 5 As shown, the ignition tungsten filament 110 is located on the rear side of the support filter plate 107 and corresponds to the support circular hole, which can ignite the cigarette in the combustion chamber.

[0044] The main circuit board 108 is located at the bottom of the upper cavity of the main unit upper housing 100. The ignition tungsten wire 110 passes through the bottom wall of the main unit upper housing 100 and is connected to the main circuit board 108. The main unit battery 109 is located in the upper cavity of the main unit upper housing 100. The top of the main unit upper housing 100 is equipped with a battery compartment cover 102 for easy replacement of the main unit battery 109.

[0045] A removable ash box 114 for collecting soot after combustion is detachably provided in the middle of the lower housing 101 of the main unit. In this embodiment, the ash box 114 is magnetically connected to the lower housing 101 of the main unit. Specifically, first magnetic parts 118 are respectively provided on both sides of the bottom of the lower housing 101 of the main unit. Figure 8 As shown, the bottom of the lower housing 101 of the main unit is provided with a first magnetic suction part mounting groove 119 for mounting the first magnetic suction part 118.

[0046] A second magnetic part 120 is provided on each side of the ash box 114 corresponding to the first magnetic part 118, such as... Figure 9 As shown, the ash box 114 is provided with a second magnetic part mounting groove 121 for mounting the second magnetic part 120.

[0047] In this embodiment, the mask 3 is detachably connected to the silicone mouthpiece holder 103 at the front end of the main unit 1, such as... Figure 3As shown, the silicone nozzle holder 103 includes a silicone nozzle mounting part 1030. The rear end of the silicone nozzle mounting part 1030 is provided with a housing connecting part 1031 that is connected to the upper housing 100 and the lower housing 101 of the main unit respectively. An annular protruding limiting plate 1032 is provided on the periphery of the middle part of the silicone nozzle mounting part 1030. A mask snap-fit ​​part 1033 for mounting the mask 3 is provided at an interval between the housing connecting part 1031 and the protruding limiting plate 1032.

[0048] The exhaust pipe 111 of the main unit is installed at the air outlet at the rear of the main unit 1, such as Figure 7 As shown, a connector 112 for connecting to the master-slave communication pipe 4 is provided at the outlet of the main exhaust pipe 111. A connection channel for installing the master-slave communication pipe 4 is formed between the outer wall of the connector 112 and the inner wall of the main exhaust pipe 111. The connection channel is interference-fitted with the master-slave communication pipe 4.

[0049] The exhaust pipe 111 of the main unit is also equipped with a filter cotton 113 for filtering the flue gas. The filter cotton 113 is located at the front end of the connector 112.

[0050] Slave unit 2 includes a slave unit upper housing 200 and a slave unit lower housing 201 that are fastened together. An exhaust duct is located inside the slave unit upper housing 200. The exhaust duct includes a slave unit air inlet duct 204 that communicates with the air inlet of slave unit 2 and a slave unit air outlet duct 205 that communicates with the air outlet of slave unit 2. The air inlet of fan 206 is connected to the slave unit air inlet duct 204, and the air outlet of fan 206 is connected to the slave unit air outlet duct 205.

[0051] The lower housing 201 of the slave unit is divided into three cavities by two partitions. The slave circuit board 207 is located in the left cavity, the slave battery 208 is located in the middle cavity, and the electronic speed controller 209 is located in the right cavity.

[0052] The exhaust port at the rear end of unit 2 is connected to exhaust pipe 5 to discharge smoke to the outside.

[0053] In this embodiment, the master-slave connecting pipe 4 is a flexible pipe. When not in use or when the distance between the master and slave is short, it can be rolled up into a coil for collection. When the distance between the master and slave is long, the master-slave connecting pipe can be unfolded for use.

[0054] When in use, the main unit 1 is located indoors and the slave unit 2 is located outdoors. It can directly exhaust the flue gas to the outside through the exhaust port at the rear of the slave unit. Alternatively, both the main unit and the slave unit can be placed indoors, with the exhaust port of the slave unit connected to the exhaust pipe, which leads to the outside for exhaust.

[0055] A method for intelligent instant direct exhaust of secondhand smoke based on lip touch sensing and master-slave collaboration, which is implemented based on the aforementioned intelligent instant direct exhaust system for secondhand smoke based on lip touch sensing and master-slave collaboration, includes the following steps: S1. Install the mask 3 at the inlet of the host 1. Connect the two ends of the host-slave connecting pipe 4 to the air outlet of the host 1 and the air inlet of the slave 2 respectively. The air outlet of the slave 2 is connected to the outdoor environment through the exhaust pipe 5. Press the host power switch 115 and the slave power switch 202 to establish mutual communication between the host 1 and the slave 2.

[0056] S2. When smoking, the mask 3 is placed over the smoker's mouth and nose, and the secondhand smoke is sent into the main unit 1 through the silicone mouthpiece 104. The touch electrode 105 senses the contact state between the lips and the silicone mouthpiece in real time, and controls the speed of the fan 206 according to the contact state, so that the smoke is discharged to the outside through the main-slave connecting pipe 4 and the slave unit 2, and the large amount of smoke generated by smoking is forcefully discharged.

[0057] Step S2 includes the following operations: S21. Insert the cigarette into the main unit 1 through the cigarette passage in the center of the silicone nozzle 104, so that the burning side of the cigarette is close to the ignition tungsten filament 110. Specifically, the cigarette is inserted into the combustion chamber in the center of the cylindrical filter 106 through the cigarette passage, and is supported by the silicone nozzle holder 103.

[0058] S22. Press the ignition switch 116. After receiving the ignition switch signal, the main control module transmits the signal to the slave control module through the main antenna module and the slave antenna module. The slave control module sends a slave idle speed signal to the electronic speed controller to make the fan idle. At the same time, the main control module sends an ignition signal to the ignition module to control the ignition tungsten filament 110 to ignite the cigarette combustion side.

[0059] S4. The tactile electrode 105 is used to sense the contact state between the lip and the silicone nozzle in real time. When the lip contacts the silicone nozzle, the motor of the control fan gradually increases from the idle state to the working state to achieve powerful smoke exhaust. After the lip leaves the silicone nozzle, the motor of the control fan decreases from the working state to the idle state.

[0060] Specifically, in step S23, when the lips contact the silicone mouthpiece, the tactile electrode generates a signal and then sends a signal to the host control module. After that, the host control module transmits the signal to the slave control module through the host antenna module and the slave antenna module. The slave control module sends an adjustment signal to the electronic speed controller, so that the motor speed of the fan is smoothly increased from idle speed to working speed, and the large amount of smoke generated by smoking is forcefully discharged.

[0061] When the user's lips leave the contact area, the contact signal disappears. The host control module transmits a signal to the slave control module through the host antenna module and the slave antenna module. The slave control module then sends an adjustment signal to the electronic speed controller, causing the fan motor speed to smoothly decrease from the operating speed back to the idle speed.

[0062] S3. After finishing smoking, press the main power switch and the slave power switch to turn off the main unit and the slave unit or put the main unit and the slave unit into sleep mode.

[0063] This invention provides an intelligent secondhand smoke instantaneous direct exhaust system and method based on lip touch sensing and master-slave collaboration. The system achieves a series of operations for lighting and exhausting smoke through the cooperation of a master and slave unit. Simultaneously, the fan speed is flexibly adjusted according to the sensing state of the tactile electrodes, enabling instant smoke exhaust. By setting tactile electrodes on the back of the silicone mouthpiece to sense the contact state between the lips and the mouthpiece, the system can identify smoking actions, thereby precisely controlling the fan speed to achieve smoke exhaust, offering greater flexibility. The master unit internally uses a cylindrical filter, a supporting filter plate, and filter cotton to perform multi-stage filtration of the exhaust smoke, ensuring that the emitted smoke is filtered before being discharged.

Claims

1. A smart secondhand smoke instantaneous direct exhaust system based on lip touch sensing and master-slave collaboration, characterized in that, The device includes a face mask (3), a main unit (1), and a slave unit (2). The air outlet at the rear end of the main unit (1) and the air inlet at the front end of the slave unit (2) are connected through a main-slave communication pipe (4). The main unit (1) and the slave unit (2) communicate with each other wirelessly. The face mask (3) is set at the inlet of the main unit (1) and is used to fasten to the mouth and nose of the smoker to collect secondhand smoke. After the main unit collects the smoking action signal, it controls the slave unit to extract and exhaust the secondhand smoke. The face mask (3) is detachably connected to the silicone nozzle fixing bracket (103) at the front end of the main unit (1).

2. The intelligent secondhand smoke instant direct discharge system based on lip touch sensing and master-slave collaboration as described in claim 1, characterized in that, The main unit (1) is provided with a silicone mouthpiece holder (103) for inserting cigarettes at the front end, and a silicone mouthpiece (104) for smokers to smoke is installed at the front end of the silicone mouthpiece holder (103); a tactile electrode (105) for sensing the contact state between the lips and the silicone mouthpiece when smoking is installed in the silicone mouthpiece holder (103) located at the rear end of the silicone mouthpiece (104); the main unit (1) is provided with a main unit circuit board (108) and a main unit battery (109) inside, the main unit battery (109) is used to power the modules on the main unit circuit board (108), the main unit circuit board (108) is provided with a main unit control module and a lip sensing module, the output end of the tactile electrode (105) is connected to the input end of the lip sensing module, and the output end of the lip sensing module is connected to the input end of the main unit control module; the main unit (1) is provided with a main unit power switch (115) for controlling the main unit switch.

3. The intelligent secondhand smoke instantaneous direct exhaust system based on lip touch sensing and master-slave collaboration according to claim 2, characterized in that, The host (1) is equipped with an ignition tungsten filament (110) for lighting cigarettes, and the ignition tungsten filament (110) is electrically connected to the host circuit board (108); an ignition switch (116) is provided on one side of the host (1); an ignition module is provided on the host circuit board (108), the input end of the host control module is connected to the output end of the ignition switch (116), the input end of the ignition module is connected to the output end of the host control module, and the output end of the ignition module is connected to the input end of the ignition tungsten filament.

4. The intelligent secondhand smoke instant direct discharge system based on lip touch sensing and master-slave collaboration according to claim 3, characterized in that, The slave unit (2) is equipped with an exhaust channel, and a fan (206) is installed inside the exhaust channel to adjust the speed according to the contact state between the lip and the silicone nozzle. The slave unit (2) is also equipped with a slave circuit board (207), a slave battery (208) and an electronic speed controller (209). The slave battery (208) is used to power the modules on the slave circuit board (207). A slave power switch (202) is provided on the front side of the slave unit (2). The slave circuit board (207) is equipped with a slave control module and a motor power supply module. The output end of the motor power supply module is connected to the power supply end of the fan. The electronic speed controller (209) is connected between the output end of the slave control module and the controlled end of the fan (206).

5. The intelligent secondhand smoke instantaneous direct exhaust system based on lip touch sensing and master-slave collaboration according to claim 4, characterized in that, The host circuit board (108) is provided with a host antenna module, and the slave circuit board (207) is provided with a slave antenna module that communicates with the host antenna module.

6. A method for intelligent, instantaneous direct discharge of secondhand smoke based on lip touch sensing and master-slave collaboration, characterized in that, This method is based on the intelligent secondhand smoke instant direct discharge system based on lip touch sensing and master-slave collaboration as described in claim 5, and includes the following steps: S1. Install the mask (3) at the inlet of the host (1). Connect the two ends of the host-slave communication pipe (4) to the air outlet of the host (1) and the air inlet of the slave (2) respectively. The air outlet of the slave (2) is connected to the outdoor environment through the exhaust pipe (5). Press the host power switch (115) and the slave power switch (202) to establish a communication connection between the host (1) and the slave (2). S2. When smoking, the mask (3) is placed over the smoker's mouth and nose. Secondhand smoke is sent into the main unit (1) through the silicone mouthpiece (104). The touch electrode (105) senses the contact state between the lips and the silicone mouthpiece in real time and controls the speed of the fan (206) according to the contact state, so that the smoke is discharged to the outside through the main-slave connection pipe (4) and the slave (2), and a large amount of smoke generated by smoking is forcefully discharged. S3. After finishing smoking, press the main power switch (115) and the slave power switch (202) to turn off the main and slave devices.

7. The intelligent secondhand smoke instantaneous direct discharge method based on lip touch sensing and master-slave collaboration according to claim 6, characterized in that, Step S2 includes the following operations: S21. Place the cigarette into the main unit (1) through the cigarette hole in the center of the silicone mouthpiece (104), so that the burning side of the cigarette is close to the ignition tungsten wire (110). S22. Press the ignition switch (116). After receiving the ignition switch signal, the main control module transmits the signal to the slave control module through the main antenna module and the slave antenna module. The slave control module sends a slave idle speed operation signal to the electronic speed controller to make the fan idle speed operation. At the same time, the main control module sends an ignition signal to the ignition module to control the ignition tungsten filament (110) to ignite the cigarette combustion side. S23. Using the tactile electrode (105), the contact state between the lip and the silicone nozzle is sensed in real time. When the lip contacts the silicone nozzle, the motor of the control fan is gradually increased from the idle state to the working state to achieve powerful smoke exhaust. After the lip leaves the silicone nozzle, the motor of the control fan is reduced from the working state to the idle state.

8. The intelligent secondhand smoke instantaneous direct discharge method based on lip touch sensing and master-slave collaboration according to claim 7, characterized in that, In step S23, when the lips contact the silicone nozzle, the tactile electrode generates a sense and then sends a signal to the host control module. After that, the host control module transmits the signal to the slave control module through the host antenna module and the slave antenna module. The slave control module sends an adjustment signal to the electronic speed controller, so that the motor speed of the fan is smoothly increased from the idle speed to the working speed, and the large amount of smoke generated by the inhalation and exhalation is powerfully discharged. When the user's lips leave the contact area, the contact signal disappears. The host control module transmits a signal to the slave control module through the host antenna module and the slave antenna module. The slave control module then sends an adjustment signal to the electronic speed controller, causing the fan motor speed to smoothly decrease from the operating speed back to the idle speed.

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