Artificial noise reduction intelligent door and window system

The artificial noise reduction smart door and window system utilizes sound wave interference cancellation technology from microphones and amplifiers, as well as dynamic sealing of airbag sealing rings, to solve the problem of reduced sound insulation effect of smart doors and windows during vibration, achieving more efficient noise reduction and sound insulation effects.

CN121932095AInactive Publication Date: 2026-04-28HARBIN HESHENG DOORS & WINDOWS MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN HESHENG DOORS & WINDOWS MANUFACTURING CO LTD
Filing Date
2026-01-29
Publication Date
2026-04-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When faced with external vibrations, existing smart doors and windows suffer from a significant decrease in sound insulation due to resonance, and current technologies have failed to effectively solve the problem of structural sound transmission.

Method used

The intelligent door and window system with artificial noise reduction uses a microphone to collect noise in real time. The Internet of Things microcontroller analyzes the noise spectrum and generates reverse interference sound. The sound waves emitted by the loudspeaker cancel the interference. At the same time, the auxiliary trigger component detects the insertion of the window sash lock tongue and drives the air pump to expand the annular airbag sealing ring, which enhances the sealing effect. This forms a multi-point sound source working together to improve the noise reduction capability.

Benefits of technology

It effectively suppresses structural sound transmission caused by vibration, enhances active noise reduction capabilities, and improves passive sound insulation through dynamic sealing, thus solving the problem of reduced sound barrier performance caused by resonance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a manual noise reduction intelligent door and window system, and belongs to the technical field of intelligent doors and windows. The manual noise reduction intelligent door and window system comprises an outer frame, a window sash is hinged to the inner side of the outer frame, a positioning groove is formed in the surface of the window sash, and an intelligent noise reduction mechanism connected with the positioning groove in a clamped mode is installed in the outer frame in an embedded mode; the intelligent noise reduction mechanism comprises an annular frame embedded in the inner side of the outer frame, and an annular groove communicating with the positioning groove is formed in the inner side of the annular frame; external noise is collected in real time through the microphone, a built-in AI chip of the Internet of Things microcontroller analyzes noise spectrum and phase and generates reverse interference sound, and the loudspeaker emits sound waves to the noise direction for interference offset, so that structural sound transmission caused by vibration is effectively inhibited, and the problem that the resonance efficiency of an existing door and window sound barrier is remarkably reduced is solved. And the active noise reduction capability is improved.
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Description

Technical Field

[0001] This invention relates to the field of intelligent door and window technology, and in particular to an artificial noise reduction intelligent door and window system. Background Technology

[0002] Currently, smart door and window technology mainly focuses on physical sound insulation and automated control. The products construct a passive noise reduction barrier through multi-cavity structure, multiple sealing design, and special soundproof glass, and integrate sensors to realize wind and rain detection, automatic window closing, and linkage with whole-house smart systems, providing users with a high level of quiet indoor environment.

[0003] However, its excellent sound insulation performance depends entirely on a sealed and stable state. When there is external vibration, the entire door and window structure and its connection structure are easily excited and resonate, resulting in a significant decrease in the sound barrier's effectiveness. This exposes the inherent defects of existing technology in dealing with structural sound transmission, and it is necessary to introduce an artificial noise reduction intelligent system to solve the above problems. Summary of the Invention

[0004] Therefore, it is necessary to provide an artificial noise reduction smart door and window system to address the problem that the physical sound insulation technology of existing smart doors and windows will reduce its sound insulation effect due to resonance when exposed to external vibrations.

[0005] The artificial noise reduction intelligent door and window system includes an outer frame, a window sash is hinged to the inner side of the outer frame, a positioning groove is provided on the surface of the window sash, and an intelligent noise reduction mechanism that engages with the positioning groove is embedded inside the outer frame.

[0006] In one embodiment, the intelligent noise reduction mechanism includes a ring frame embedded in the inner side of an outer frame. The inner side of the ring frame has an annular groove communicating with a positioning groove. An annular airbag sealing ring that engages with the positioning groove is embedded in the annular groove. A mounting box is fixedly connected to the top of the ring frame. One end of the mounting box extends through the ring frame and out of the outer frame. A mounting bracket is detachably connected to the inner side of the mounting box. An IoT microcontroller, a bidirectional air pump, a microphone, and a loudspeaker are fixedly connected to the inner side of the mounting bracket. The wiring terminal of the IoT microcontroller extends through the mounting bracket and out of the mounting box. One air port of the bidirectional air pump is fixedly connected to and communicates with the annular airbag sealing ring. The receiving end of the microphone and the transmitting end of the loudspeaker extend through the mounting box.

[0007] In one embodiment, the inner side of the ring frame is provided with an installation cavity for engaging with the window sash latch. The intelligent noise reduction mechanism also includes an auxiliary triggering component, which includes a pressure sensor and a trigger block. The pressure sensor is fixedly connected to the inside of the mounting bracket, and the trigger block is slidably connected to the inside of the installation cavity. The latch of the window sash and the trigger end of the pressure sensor are respectively in contact with the two ends of the trigger block.

[0008] In one embodiment, a guide block is fixedly connected to the side end of the trigger block, and a spring is provided between the guide block and the mounting cavity.

[0009] In one embodiment, there are two guide blocks and two springs, with the two guide blocks symmetrically fixed to both ends of the trigger block, and the springs are in a compressed state.

[0010] In one embodiment, the number of loudspeakers is not less than three, and the distance between the microphone and the adjacent loudspeaker is greater than the distance between two adjacent loudspeakers.

[0011] In one embodiment, both the microphone and the amplifier are fitted with an anti-interference tube, one end of which is fixedly connected to the mounting box, and the other end of which extends through the outside of the outer frame.

[0012] In one embodiment, a waterproof and breathable membrane is embedded in the inner side of the anti-interference tube, and the end of the waterproof and breathable membrane facing away from the microphone is flush with the opening of the anti-interference tube facing away from the IoT microcontroller.

[0013] In one embodiment, the annular airbag sealing ring and the bidirectional air pump are fixedly connected and connected by a three-way air pipe, and the unused end of the three-way air pipe is fixedly connected and connected to a miniature electric ball valve that is fixedly connected to the mounting bracket.

[0014] In one embodiment, the miniature electric ball valve is normally closed when energized and normally open when de-energized.

[0015] In one embodiment, the surface of the other air port of the bidirectional air pump is threadedly connected to a threaded filter.

[0016] 1. The aforementioned artificial noise reduction intelligent door and window system collects external noise in real time through a microphone. The IoT microcontroller with built-in AI chip analyzes the noise spectrum and phase and generates reverse interference sound. Sound waves are emitted in the direction of the noise by a loudspeaker to interfere and cancel it out, effectively suppressing structural sound transmission caused by vibration, solving the problem of significant reduction in the resonance efficiency of existing door and window sound barriers, and improving active noise reduction capabilities.

[0017] 2. The design employs at least three microphones, with the distance between the microphone and the adjacent microphone being greater than the distance between two adjacent microphones. This configuration creates a wider sound wave interference area, enhances the noise cancellation effect through the coordinated work of multiple point sound sources, improves the overall performance of the noise reduction system, and further solves the problem of sound insulation performance attenuation caused by structural sound transmission.

[0018] 3. When the window sash is closed, the auxiliary trigger component detects the insertion of the latch through a pressure sensor. The IoT microcontroller drives a bidirectional air pump to expand the annular airbag sealing ring and lock it into the positioning groove, achieving dynamic sealing and improving the vacuum degree of the ring frame. This enhances the passive sound insulation effect and works in conjunction with active noise reduction to solve the problem of reduced sound barrier effectiveness caused by structural sound transmission. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the overall structure in this invention; Figure 3 This is a schematic diagram of the overall structure of the intelligent noise reduction mechanism in this invention; Figure 4 This is a partial structural schematic diagram of the intelligent noise reduction mechanism in this invention; Figure 5 for Figure 4 Schematic sectional view along the middle AA direction; Figure 6 for Figure 4 Cross-sectional view along the middle BB direction; Figure 7 This is a wiring diagram of the electrical components in this invention.

[0021] Figure label: 100. Outer frame; 200. Window sash; 210. Positioning groove; 300. Intelligent noise reduction mechanism; 310. Ring frame; 311. Ring groove; 312. Mounting cavity; 320. Annular airbag sealing ring; 330. Mounting box; 340. Mounting bracket; 350. IoT microcontroller; 360. Two-way air pump; 370. Microphone; 380. Megaphone; 390. Auxiliary trigger component; 391. Pressure sensor; 392. Trigger block; 393. Guide block; 394. Spring; 3100. Anti-interference cylinder; 3110. Waterproof and breathable membrane; 3120. Three-way air pipe; 3130. Miniature electric ball valve; 3140. Threaded filter element. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0027] The following is combined Figure 1 - Figure 7 This invention describes an artificial noise reduction intelligent door and window system.

[0028] In one embodiment, an artificial noise reduction intelligent door and window system includes an outer frame 100, a window sash 200 hinged to the inner side of the outer frame 100, a positioning groove 210 formed on the surface of the window sash 200, and an intelligent noise reduction mechanism 300 embedded in the inner side of the outer frame 100 and engaging with the positioning groove 210. Here, both the outer frame 100 and the window sash 200 are window sash system structures. When the application is a door sash system structure, the outer frame 100 is called a door frame, and the window sash 200 is called a door sash. The rest of the structures are the same.

[0029] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the intelligent noise reduction mechanism 300 includes a ring frame 310 embedded inside the outer frame 100. The ring frame 310 provides structural support, ensuring that the intelligent noise reduction mechanism 300 is stably embedded in the outer frame 100, while facilitating the installation and integration of other components. An annular groove 311 communicating with the positioning groove 210 is provided on the inner side of the ring frame 310. The annular groove 311 is used to precisely accommodate the annular airbag sealing ring 320, ensuring uniform sealing of the positioning groove 210 when it expands, thus improving sealing performance. An annular airbag sealing ring 320 that engages with the positioning groove 210 is embedded inside the annular groove 311. A mounting box 330 is fixedly connected to the top of the ring frame 310. The mounting box 330 protects the internal electronic components from physical damage and environmental influences, while also facilitating maintenance and replacement. One end of 330 extends through the ring frame 310 and out of the outer frame 100. The mounting bracket 340 is detachably connected to the inside of the mounting box 330. The mounting bracket 340 provides a modular installation method, which facilitates the fixing and disassembly of components such as the IoT microcontroller 350 and the bidirectional air pump 360, simplifying the maintenance process. The IoT microcontroller 350, the bidirectional air pump 360, the microphone 370 and the loudspeaker 380 are fixedly connected to the inside of the mounting bracket 340. The wiring terminal of the IoT microcontroller 350 extends through the mounting bracket 340 and out of the mounting box 330. One of the air ports of the bidirectional air pump 360 is fixedly connected and communicates with the annular airbag sealing ring 320. The receiving end of the microphone 370 and the transmitting end of the loudspeaker 380 extend through the mounting box 330.

[0030] When external noise is transmitted towards the door and window system, the microphone 370 records the noise in real time through the anti-interference tube 3100. Then, the IoT microcontroller 350 generates a corresponding interference sound based on its built-in AI chip and propagates it in the direction of the noise through the loudspeaker 380, causing the two sound waves to collide and effectively reducing the propagation of noise towards the door and window system, thereby improving the intelligent noise reduction effect. The number of loudspeakers 380 is no less than three. This configuration can form a wider sound wave interference area. The coordinated work of multiple point sound sources enhances the noise cancellation effect and improves the overall performance of the noise reduction system. The distance between the microphone 370 and the adjacent loudspeaker 380 is greater than the distance between two adjacent loudspeakers 380 to optimize the sound wave interference effect. At the same time, the waterproof and breathable membrane 3110 embedded inside the anti-interference tube 3100 prevents moisture and dust from entering the microphone 370 and loudspeaker 380, ensuring that the equipment operates normally in harsh environments.

[0031] like Figure 6 and Figure 7 As shown, the inner side of the ring frame 310 has an installation cavity 312 that engages with the latch of the window sash 200. The intelligent noise reduction mechanism 300 also includes an auxiliary trigger component 390, which includes a pressure sensor 391 and a trigger block 392. The pressure sensor 391 is fixedly connected to the inside of the mounting bracket 340, and the trigger block 392 is slidably connected to the inside of the installation cavity 312. The latch of the window sash 200 and the trigger end of the pressure sensor 391 are in contact with the two ends of the trigger block 392, respectively. A guide block 393 is fixedly connected to the side end of the trigger block 392, and a spring 394 is provided between the guide block 393 and the installation cavity 312. There are two guide blocks 393 and two springs 394. The two guide blocks 393 are symmetrically fixedly connected to the two ends of the trigger block 392. The springs 394 are in a compressed state. The movement of the trigger block 392 is guided by the guide blocks 393 and the springs 394 provide a restoring force to ensure the stable triggering of the pressure sensor 391 and the smooth insertion of the latch.

[0032] When the user closes the window sash 200, the latch of the window sash 200 is inserted into the mounting cavity 312. The latch pushes against the trigger block 392, causing the trigger block 392 to compress the pressure sensor 391. At this time, the pressure sensor 391 sends a corresponding pressure signal to the IoT microcontroller 350. The IoT microcontroller 350 drives the bidirectional air pump 360 to introduce the air inside the ring frame 310 into the annular airbag sealing ring 320 through the three-way air pipe 3120. This causes the annular airbag sealing ring 320 to expand rapidly and lock into the positioning groove 210, firmly sealing the gap between the window sash 200 and the outer frame 100. It also increases the vacuum degree in the ring frame 310, thereby improving the overall sound insulation and noise reduction effect of the door and window system.

[0033] When the window sash 200 is opened, the latch retracts from the mounting cavity 312, the trigger block 392 resets under the elastic force of the spring 394, the pressure sensor 391 stops sending signals to the IoT microcontroller 350, the IoT microcontroller 350 controls the bidirectional air pump 360 to operate in reverse, and the annular airbag sealing ring 320 gradually contracts due to the reverse operation of the bidirectional air pump 360. like Figure 5 and Figure 7 As shown, there are no fewer than three loudspeakers 380. The distance between the microphone 370 and an adjacent loudspeaker 380 is greater than the distance between two adjacent loudspeakers 380. An anti-interference tube 3100 is fitted onto the surface of both the microphone 370 and the loudspeaker 380. One end of the anti-interference tube 3100 is fixedly connected to the mounting box 330, and the other end extends through the outer frame 100. The anti-interference tube 3100 provides physical protection for the microphone 370 and the loudspeaker 380, and also serves to guide sound waves in a directional manner, reducing external interference and internal sound wave reflection, thereby improving the accuracy of noise collection and interference sound emission. The inner side of the anti-interference tube 3100 is embedded... A waterproof and breathable membrane 3110 is installed. The end of the waterproof and breathable membrane 3110 facing away from the microphone 370 is flush with the opening of the anti-interference tube 3100 facing away from the IoT microcontroller 350. The waterproof and breathable membrane 3110 effectively blocks moisture and dust while allowing sound waves to pass through without loss, ensuring that the acquisition sensitivity of the microphone 370 and the sound output effect of the loudspeaker 380 are not affected. The other air port of the bidirectional air pump 360 is threadedly connected to a threaded filter 3140. The threaded filter 3140 of the other air port of the bidirectional air pump 360 filters the incoming air during normal operation to prevent dust blockage, but does not affect the gas return flow during emergency release.

[0034] like Figure 5 , Figure 6 and Figure 7 As shown, a three-way air pipe 3120 is fixedly connected between the annular airbag sealing ring 320 and the bidirectional air pump 360. The three-way air pipe 3120 ensures reliable gas transmission between the annular airbag sealing ring 320, the bidirectional air pump 360, and the miniature electric ball valve 3130, enabling rapid inflation and deflation. The unused end of the three-way air pipe 3120 is fixedly connected to the miniature electric ball valve 3130, which is fixedly connected to the mounting bracket 340. The miniature electric ball valve 3130 is normally closed when energized and normally open when de-energized. When the power supply to the intelligent noise reduction mechanism 300 is cut off, the micro electric ball valve 3130 is de-energized and automatically switches to the normally open state. The high-pressure gas inside the annular airbag sealing ring 320 is guided back into the ring frame 310 through the three-way air pipe 3120. This allows the annular airbag sealing ring 320 to quickly deflate and shrink, avoiding the problem that the window sash 200 is difficult to open quickly in emergency situations such as fires, thereby improving the safety factor of the device.

[0035] Working principle: When external vibrations are transmitted through the building structure to the outer frame 100 and cause resonance in the window sash 200 and the outer frame 100, thereby radiating structural noise, the microphone 370 inside the mounting box 330 collects the noise signal of this specific frequency band in real time through the anti-interference tube 3100 and transmits the signal to the IoT microcontroller 350. The AI ​​chip built into the IoT microcontroller 350 immediately analyzes the spectrum and phase of the resonance noise and generates a beam of canceling sound waves with the same amplitude but opposite phase. The canceling sound waves are emitted into the indoor space through the loudspeaker 380 inside the mounting box 330, so that they interfere and cancel with the original noise waves generated by structural resonance in the space, thereby effectively suppressing the problem of sound barrier performance attenuation caused by vibration transmission and realizing active noise reduction of structural sound transmission.

[0036] It should be noted that the physical model of the IoT microcontroller 350 is Espressif ESP32-WROOM-32. Its core structure is based on a dual-core processor and an integrated wireless module. In the system, it is responsible for receiving noise signals from the microphone 370 and analyzing the noise spectrum and phase through the built-in AI chip to generate corresponding reverse interference sound signals to control the amplifier 380 to emit sound waves. At the same time, it drives the bidirectional air pump 360 to perform inflation and deflation operations based on the pressure signal from the pressure sensor 391, thereby achieving sound wave interference noise reduction and sealing control.

[0037] The actual model of the bidirectional air pump 360 is SMC SY series. Its core structure includes a motor and a piston air chamber. Under the control of the Internet of Things microcontroller 350, the air inside the ring frame 310 is pumped into the annular airbag sealing ring 320 through the three-way air pipe 3120, causing it to expand and lock into the positioning groove 210. Alternatively, the air can be extracted in the opposite direction to cause the airbag to contract, so as to achieve dynamic sealing in conjunction with the opening and closing of the window sash 200.

[0038] The physical model of the microphone 370 is Knowles SPH0645LM4H-B. Its core structure consists of a MEMS sensor and a signal conditioning circuit. It collects external noise signals in real time through the anti-interference tube 3100 and transmits the signals to the IoT microcontroller 350 for analysis and generation of interference sounds, thereby optimizing the active noise cancellation effect.

[0039] The physical model of the loudspeaker 380 is Bose Free Space 51. Its core structure includes a speaker unit and an amplifier. It receives the reverse interference sound signal generated by the IoT microcontroller 350 and emits sound waves in the direction of noise, interfering with and canceling the original noise wave, thus improving the overall noise reduction performance.

[0040] The physical model of the pressure sensor 391 is Honeywell HSC series. Its core structure is a piezoresistive sensing element. When the latch of the window sash 200 is inserted into the mounting cavity 312, it pushes the trigger block 392 to compress the spring 394 and squeeze the pressure sensor 391, so that it sends a pressure signal to the Internet of Things microcontroller 350 to trigger the inflation operation of the bidirectional air pump 360.

[0041] The actual model of the miniature electric ball valve 3130 is the ASCO 210 series. Its core structure includes a ball valve and an actuator. When energized, it is normally closed to maintain the sealing state of the annular airbag seal 320. When de-energized, it automatically switches to the normally open state, allowing gas to flow back to the ring frame 310 through the three-way air pipe 3120, so that the annular airbag seal 320 can quickly contract to ensure that the window sash 200 can be opened quickly in an emergency.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An artificial noise reduction intelligent door and window system, comprising an outer frame (100), wherein a window sash (200) is hinged to the inner side of the outer frame (100), characterized in that, The surface of the window sash (200) is provided with a positioning groove (210), and the interior of the outer frame (100) is fitted with an intelligent noise reduction mechanism (300) that engages with the positioning groove (210). The intelligent noise reduction mechanism (300) includes a ring frame (310) embedded in the inner side of the outer frame (100). The inner side of the ring frame (310) has an annular groove (311) communicating with a positioning groove (210). An annular airbag sealing ring (320) that engages with the positioning groove (210) is embedded inside the annular groove (311). A mounting box (330) is fixedly connected to the top of the ring frame (310). One end of the mounting box (330) extends through the ring frame (310) and outwards to the outside of the outer frame (100). The inner side of the mounting box (330)... A mounting bracket (340) is detachably connected. An IoT microcontroller (350), a bidirectional air pump (360), a microphone (370), and a loudspeaker (380) are fixedly connected to the inner side of the mounting bracket (340). The wiring terminal of the IoT microcontroller (350) extends through the mounting bracket (340) and to the outside of the mounting box (330). One of the air ports of the bidirectional air pump (360) is fixedly connected to and communicates with the annular airbag sealing ring (320). The receiving end of the microphone (370) and the transmitting end of the loudspeaker (380) extend through the mounting box (330).

2. The artificial noise reduction intelligent door and window system according to claim 1, characterized in that, The inner side of the ring frame (310) is provided with an installation cavity (312) that engages with the latch of the window sash (200). The intelligent noise reduction mechanism (300) also includes an auxiliary trigger component (390). The auxiliary trigger component (390) includes a pressure sensor (391) and a trigger block (392). The pressure sensor (391) is fixedly connected to the inside of the mounting bracket (340), and the trigger block (392) is slidably connected to the inside of the installation cavity (312). The latch of the window sash (200) and the trigger end of the pressure sensor (391) are respectively in contact with the two ends of the trigger block (392).

3. The artificial noise reduction intelligent door and window system according to claim 2, characterized in that, A guide block (393) is fixedly connected to the side end of the trigger block (392), and a spring (394) is provided between the guide block (393) and the mounting cavity (312).

4. The artificial noise reduction intelligent door and window system according to claim 3, characterized in that, There are two guide blocks (393) and two springs (394). The two guide blocks (393) are symmetrically fixed to both ends of the trigger block (392), and the springs (394) are in a compressed state.

5. The artificial noise reduction intelligent door and window system according to claim 1, characterized in that, The number of loudspeakers (380) is not less than three, and the distance between the microphone (370) and the adjacent loudspeaker (380) is greater than the distance between two adjacent loudspeakers (380).

6. The artificial noise reduction intelligent door and window system according to claim 5, characterized in that, The microphone (370) and the loudspeaker (380) are both covered with an anti-interference tube (3100). One end of the anti-interference tube (3100) is fixedly connected to the mounting box (330), and one end of the anti-interference tube (3100) extends through the outside of the outer frame (100).

7. The artificial noise reduction intelligent door and window system according to claim 6, characterized in that, A waterproof and breathable membrane (3110) is embedded in the inner side of the anti-interference tube (3100), and the end of the waterproof and breathable membrane (3110) facing away from the microphone (370) is flush with the opening of the anti-interference tube (3100) facing away from the Internet of Things microcontroller (350).

8. The artificial noise reduction intelligent door and window system according to claim 1, characterized in that, The annular airbag sealing ring (320) and the bidirectional air pump (360) are fixedly connected and connected by a three-way air pipe (3120). The unused end of the three-way air pipe (3120) is fixedly connected and connected to a miniature electric ball valve (3130) that is fixedly connected to the mounting bracket (340).

9. The artificial noise reduction intelligent door and window system according to claim 8, characterized in that, The miniature electric ball valve (3130) is normally closed when energized and normally open when de-energized.

10. The artificial noise reduction intelligent door and window system according to claim 1, characterized in that, The other port of the bidirectional air pump (360) is threadedly connected to a threaded filter element (3140).