Indoor environment intelligent detection device and detection method thereof

Abstract

The application relates to the technical field of indoor environment detection devices, in particular to an indoor environment intelligent detection device and a detection method thereof. The device comprises a detection unit, the bottom end of the detection unit is fixedly installed with a support through bolts, and the support is used for realizing stable support of the whole device; a detection surface shell is fixedly installed in the inside of the detection unit; a sampling receiving cover is fixedly arranged on the outer surface of the detection surface shell; a plurality of blowing motors are fixedly installed in the inside of the detection unit; and a turbofan is fixedly connected to the output end of each blowing motor. The dynamic flow field is constructed through the distributed detection unit, the relay transmission mechanism of blowing and sucking cooperation is utilized, the originally stationary air in the room is forcedly driven to form directional circulation, compared with the traditional passive diffusion type detection, the monitoring blind area (such as corners and the back of furniture) is eliminated, the detection data can truly reflect the overall environment condition of the room, and the spatial representativeness of the sampling data is improved, especially in large spaces or complex partition environments.

Description

Technical Field

[0001] This invention relates to the field of indoor environment detection technology, specifically to an intelligent indoor environment detection device and its detection method. Background Technology

[0002] With the development of intelligent building and indoor environment monitoring technology, real-time detection of indoor air quality has gradually gained attention, especially in large spaces or complex partitioned environments such as shopping malls, office buildings and industrial plants, where air flow is uneven and local areas are prone to air stagnation or insufficient exchange. Therefore, comprehensive and accurate detection of indoor environment has become an important research topic in the field of automation control. In existing technologies, indoor environmental monitoring often employs fixed-point monitoring equipment that passively samples the air using sensors. This sampling method relies primarily on the natural diffusion and random flow of air. However, in practical applications, the unevenness of indoor airflow, particularly in corners, furniture-obstructed areas, or ventilation dead zones, makes it difficult for monitoring equipment to obtain representative gas samples. This results in significant deviations in the monitoring data, failing to accurately reflect the overall environmental conditions. Therefore, based on the aforementioned research and existing technologies, this application proposes an intelligent indoor environmental monitoring device and its monitoring method. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent indoor environment detection device and its detection method to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an intelligent indoor environment detection device, comprising a detection unit, wherein a bracket is fixedly installed at the bottom of the detection unit by bolts for stable support of the overall device, a detection shell is fixedly installed inside the detection unit, a sampling receiving cover is fixedly installed on the outer surface of the detection shell, an air inlet corresponding to the sampling receiving cover is opened on the shell of the detection unit, so that external air can enter the detection unit under guidance to form a stable air intake channel, multiple sets of blower motors are fixedly installed inside the detection unit, and a turbofan is fixedly connected to the output end of each blower motor for driving air to form a directional airflow, an output hole corresponding to the turbofan is opened on the shell of the detection unit, and a directional wind cover is rotatably installed at the output hole; After multiple detection units are installed in the indoor space according to preset positions, each detection unit works under the coordinated control of the control module. The blower motor drives the turbofan to run, so that air flows between different detection units along a preset path and is sucked in by the sampling receiving hood of the adjacent detection unit, realizing the relay transmission of airflow between multiple nodes.

[0005] As a further embodiment of the present invention, an isolation cover is fixedly installed inside the detection housing, and a detection probe for detecting air quality parameters is fixedly installed on the lower side of the isolation cover. A negative pressure cylinder is also fixedly installed inside the detection housing, and the negative pressure cylinder is located above the isolation cover. Multiple sensing slots are formed on the outer surface of the detection probe, and each sensing slot integrates a sensor element for detecting different air parameters.

[0006] As a further embodiment of the present invention, a cleaning sleeve is fitted on the outer side of the detection probe, an electric push rod is fixedly installed on the upper end of the detection shell, a central rod is fixedly connected to the telescopic end of the electric push rod, and the lower end of the central rod is fixedly connected to the cleaning sleeve for driving the cleaning sleeve to reciprocate along the axial direction of the detection probe. A diverter ring is fixedly installed on the inner end of the cleaning sleeve. The electric push rod drives the central rod to drive the cleaning sleeve to reciprocate along the axial direction of the detection probe, thereby realizing the automated operation of the cleaning structure without manual intervention and improving the intelligence level of the device.

[0007] As a further embodiment of the present invention, the lower end of the cleaning sleeve is provided with multiple nozzles arranged in a ring. The lower end of the diversion ring is fixedly connected with multiple guide tubes, and the lower end of each guide tube extends into the interior of the corresponding nozzle to form a guide channel for the cleaning liquid. The nozzles and guide tubes are connected by a reset spring so that the nozzles maintain their initial downward extension position when no external force is applied. The nozzle nozzles face the sensing groove to achieve directional spraying of the detection area.

[0008] As a further embodiment of the present invention, an exhaust pipe is fixedly connected to the side wall of the negative pressure cylinder. The air inlet end of the exhaust pipe is connected to the space below the isolation cover, which is used to introduce the gas in the isolation cover into the negative pressure cylinder. The inner diameter of the negative pressure cylinder changes in a stepped manner along the axial direction. The inner diameter of its lower region is larger than that of its upper region. The air outlet end of the exhaust pipe is connected to the lower large diameter region of the negative pressure cylinder. An air outlet pipe is also fixedly connected to the side wall of the negative pressure cylinder.

[0009] As a further embodiment of the present invention, a negative pressure plug is fixedly installed on the outer surface of the central rod. The outer circumferential surface of the negative pressure plug is in a sealing sliding fit with the inner wall of the negative pressure cylinder, thereby forming a variable volume cavity inside the negative pressure cylinder. By setting a negative pressure plug on the outer surface of the central rod in a sealing sliding fit with the inner wall of the negative pressure cylinder, a variable volume cavity is formed inside the negative pressure cylinder. During the reciprocating motion of the central rod, the cavity volume can be periodically changed, thereby generating a stable negative pressure effect.

[0010] As a further embodiment of the present invention, a support shell is fixedly installed inside the detection shell. The support shell is located above the clean tank and is used to support the cleaning drive and liquid recovery structure. A cleaning cylinder is fixedly installed at the upper end of the support shell, and the cleaning cylinder is coaxially arranged with the cleaning sleeve.

[0011] As a further embodiment of the present invention, a drive motor is fixedly installed inside the support shell, and an output rod is fixedly connected to the output end of the drive motor. An active wave ring is fixedly installed on the outer surface of the output rod, and the active wave ring is located inside the cleaning cylinder. A passive wave ring is sleeved on the outer side of the output rod. The output rod is driven to rotate by the drive motor, and the rotational motion is converted into a stable axial reciprocating motion by utilizing the cooperation structure of the active wave ring and the passive wave ring, thereby providing a continuous and controllable driving force for the cleaning mechanism.

[0012] As a further embodiment of the present invention, the active wave ring and the passive wave ring mesh with each other. When the drive motor drives the output rod to rotate, the waveform structure of the active wave ring drives the passive wave ring to generate continuous axial reciprocating motion, thereby converting the rotational motion into stable up-and-down linear motion. A cleaning brush is fixedly installed at the upper end of the output rod, and the cleaning brush is located in the upper region of the cleaning cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention constructs a dynamic flow field through distributed detection units and uses a relay transmission mechanism of blowing and suction to force the originally still indoor air to form a directional circulation. Compared with traditional passive diffusion detection, this solution eliminates monitoring blind spots (such as corners and behind furniture), so that the detection data can truly reflect the overall indoor environmental conditions. Especially in large spaces or complex partition environments, the spatial representativeness of the sampling data is improved. 2. This invention uses a composite cleaning structure consisting of a cleaning sleeve, a nozzle, a diverting ring, and a cleaning brush on the outside of the detection probe. Driven by an electric push rod, it achieves a synergistic cleaning method of "spray softening + mechanical brushing". Compared with the existing methods that rely solely on single blowing or simple wiping, it can effectively remove stubborn pollutants attached to the sensing slot without damaging the sensor components, significantly reducing the impact of pollutants on detection accuracy, thereby improving the accuracy and stability of air quality detection data. 3. The cleaning liquid recovery and filtration circulation system (filter and return pipeline) designed internally in this invention realizes closed-loop management of the liquid. Combined with the unidirectional opening and closing negative pressure stabilization structure, it not only ensures the unidirectionality and purity of the sampling process, but also reduces the consumption of consumables, enabling the device to have a strong continuous operation capability in unattended scenarios such as shopping malls and factories. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the detection unit. Figure 2 This is a schematic diagram of the internal structure of the detection unit; Figure 3 A schematic diagram showing the internal structure of the faceplate; Figure 4 This is a schematic diagram of the internal structure of the negative pressure cylinder; Figure 5 This is a schematic diagram of the internal structure of the cleaning sleeve; Figure 6 This is a structural diagram of the nozzle. Figure 7 This is a schematic diagram of the internal structure of the negative pressure cylinder; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 A schematic diagram of the structure supporting the interior of the shell; Figure 10 A schematic diagram showing the internal structure of the cleaning cylinder after disassembly. Figure 11 This is a simplified diagram of the indoor distributed layout of the present invention.

[0015] In the diagram: 1. Detection unit; 2. Support; 101. Sampling receiver cover; 102. Blower motor; 103. Directional fan cover; 104. Turbofan; 201. Detection faceplate; 202. Electric actuator; 203. Negative pressure cylinder; 204. Isolation cover; 205. Output pipe; 206. Negative pressure plug; 207. Air outlet pipe; 208. Exhaust pipe; 209. Center rod; 210. Auxiliary spring; 211. One-way plug; 301. Cleaning sleeve; 302. Detection probe; 303. Sensing slot; 304. Nozzle; 305. Diverter ring; 306. Return spring; 307. Guide tube; 401. Cleaning cylinder; 402. Support housing; 403. Filter; 404. Cleaning brush; 405. Passive wave ring; 406. Active wave ring; 407. Drive motor; 408. Output rod; 501. Clean container; 502. Return pipe. Detailed Implementation

[0016] 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, and 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.

[0017] Example 1: Please refer to Figure 1 , Figure 2 , Figure 11An intelligent indoor environment detection device and its detection method are disclosed. The device includes a detection unit 1. A bracket 2 is fixedly installed at the bottom of the detection unit 1 by bolts to achieve stable support for the overall device. A detection shell 201 is fixedly installed inside the detection unit 1. A sampling receiving cover 101 is fixedly installed on the outer surface of the detection shell 201. An air inlet corresponding to the sampling receiving cover 101 is opened on the shell of the detection unit 1 so that external air can enter the interior of the detection unit 1 under the guidance to form a stable air intake channel. The detection unit 1 is equipped with an air pump (not shown in the figure) to put the sampling receiving cover 101 in an active air intake state. Multiple sets of blower motors 102 are fixedly installed inside the detection unit 1. Each blower motor 102 is fixedly connected to a turbofan 104 at its output end to drive air to form a directional airflow. The housing of the detection unit 1 has an output hole corresponding to the turbofan 104. A directional wind cover 103 is rotatably installed at the output hole. A damping structure is provided between the directional wind cover 103 and the detection unit 1 so that the directional wind cover 103 can maintain a stable positioning state after being adjusted to any angle, thereby realizing the adjustable and locked airflow output direction. The turbofan 104 rotates under the drive of the blower motor 102 to generate airflow, and forms a directional airflow jet through the directional shroud 103, which transports the air in the area where the current detection unit 1 is located to the sampling receiving shroud 101 in the adjacent area along a set direction, thereby realizing the directional transfer of air samples and the guidance of flow between areas. like Figure 2 , Figure 11 As shown, specifically, after multiple sets of detection units 1 are installed in the indoor space according to preset positions, each detection unit 1 works under the coordinated control of the control module. The blower motor 102 drives the turbo fan 104 to run, so that the air flows between different detection units 1 along a preset path and is sucked in by the sampling receiving hood 101 of the adjacent detection unit 1, realizing the relay transmission of airflow between multiple nodes. Through this distributed arrangement and blowing and suction coordination method, a continuous dynamic flow field is constructed in the monitoring space, so that the air can cover areas that are difficult to reach by traditional static sampling, thereby improving the comprehensiveness and uniformity of indoor environmental parameter collection and avoiding the generation of monitoring blind spots. The detection unit 1 integrates a control module, which is used to uniformly schedule and control the operating status of each detection unit 1, including adjusting the start and stop, speed and working sequence of the blower motor 102, so as to achieve phase coordination between multiple detection units 1. By controlling the airflow output and sampling rhythm of different detection units 1, a periodically changing dynamic relay airflow path is formed in the monitoring area, so that the ambient air can form a circulating flow path in the space, thereby realizing active cyclic sampling of indoor temperature, humidity and gas parameters, improving the real-time and accuracy of detection data, and enhancing the system's response capability to environmental changes.

[0018] like Figures 2-4 As shown, an isolation cover 204 is fixedly installed inside the detection housing 201. A detection probe 302 for detecting air quality parameters is fixedly installed on the lower side of the isolation cover 204. A negative pressure cylinder 203 is also fixedly installed inside the detection housing 201, and the negative pressure cylinder 203 is located above the isolation cover 204. The outer surface of the detection probe 302 is provided with multiple sensing slots 303, and each sensing slot 303 integrates a sensor element for detecting different air parameters, which is used to comprehensively detect the temperature, humidity and gas composition in the indoor air, thereby realizing the integrated acquisition of multiple parameters. A cleaning sleeve 301 is fitted around the outer side of the detection probe 302. An electric push rod 202 is fixedly installed on the upper end of the detection shell 201 by bolts. A central rod 209 is fixedly connected to the telescopic end of the electric push rod 202. The lower end of the central rod 209 is fixedly connected to the cleaning sleeve 301 and is used to drive the cleaning sleeve 301 to reciprocate along the axial direction of the detection probe 302. A scraper structure matching the sensing groove 303 is fixedly installed on the lower end of the cleaning sleeve 301. The scraper is embedded in the corresponding sensing groove 303. When the cleaning sleeve 301 moves downward, the scraper can scrape off the particles and contaminants attached to the sensing groove 303, thereby preventing the accumulation of contaminants from affecting the detection accuracy of the sensor. A clean tank 501 is fixedly installed inside the detection housing 201. The clean tank 501 is filled with cleaning liquid. A diversion ring 305 is fixedly installed inside the cleaning sleeve 301. The upper end of the diversion ring 305 is connected to the clean tank 501 through the output pipe 205. A water pump is connected to the output pipe 205 to continuously deliver the cleaning liquid in the clean tank 501 to the diversion ring 305 during the cleaning process, thereby achieving liquid supply to the cleaning area. Multiple nozzles 304 are provided through the lower end of the cleaning sleeve 301. The multiple nozzles 304 are arranged in a ring. Multiple guide tubes 307 are fixedly connected to the lower end of the diversion ring 305. The lower end of each guide tube 307 extends into the interior of the corresponding nozzle 304 to form a guide channel for the cleaning liquid. The nozzle 304 and the guide tube 307 are connected by a return spring 306 so that the nozzle 304 maintains the initial downward extension position when no external force is applied. In the initial state, under the elastic action of the return spring 306, the nozzle of the nozzle 304 faces the sensing groove 303, realizing directional spraying of the detection area. When the electric push rod 202 drives the cleaning sleeve 301 to move downward, the nozzle 304 first sprays liquid to rinse the area of ​​the sensing groove 303. Then, as the cleaning sleeve 301 continues to move downward, the nozzle 304 is gradually retracted into the cleaning sleeve 301 by the limiting action of the surface of the detection probe 302. At this time, the nozzle of the nozzle 304 is blocked, and the output of cleaning liquid is limited, thereby avoiding the continuous spraying of cleaning liquid in the non-cleaning stage, reducing cleaning liquid consumption and preventing interference with the detection process.

[0019] Example 2: Please refer to Figure 3 , Figure 7 , Figure 8 An intelligent indoor environment detection device and its detection method are based on Embodiment 1. An exhaust pipe 208 is fixedly connected to the side wall of the negative pressure cylinder 203. The air inlet end of the exhaust pipe 208 is connected to the space below the isolation cover 204 to introduce the gas in the isolation cover 204 into the negative pressure cylinder 203. The inner diameter of the negative pressure cylinder 203 changes in a stepped manner along the axial direction. The inner diameter of its lower region is larger than that of its upper region. The air outlet end of the exhaust pipe 208 is connected to the lower large diameter region of the negative pressure cylinder 203. A negative pressure plug 206 is fixedly installed on the outer surface of the center rod 209. The outer circumferential surface of the negative pressure plug 206 is in a sealing sliding fit with the inner wall of the negative pressure cylinder 203, thereby forming a variable volume cavity inside the negative pressure cylinder 203. When the electric actuator 202 drives the center rod 209 to move downward, the negative pressure plug 206 moves downward synchronously inside the negative pressure cylinder 203, causing the volume of its upper cavity to gradually increase, thereby creating a negative pressure environment above the negative pressure plug 206. When the negative pressure plug 206 moves to the lower large-diameter area of ​​the negative pressure cylinder 203, the exhaust pipe 208 connects with the negative pressure area above the negative pressure plug 206. Under the action of pressure difference, the gas in the isolation cover 204 quickly enters the interior of the negative pressure cylinder 203 through the exhaust pipe 208, realizing the active extraction and renewal of the gas in the detection area, thereby improving the sampling efficiency and response speed of the detection probe 302 for the ambient gas. The side wall of the negative pressure cylinder 203 is also fixedly connected to an air outlet pipe 207. The air outlet pipe 207 is used to discharge the gas inside the negative pressure cylinder 203. The air outlet pipe 207 is provided with a one-way opening and closing structure, including a one-way plug 211 and an auxiliary spring 210. The one-way plug 211 is kept closed to the air outlet pipe 207 under the elastic force of the auxiliary spring 210. When the gas pressure inside the negative pressure cylinder 203 rises to the set value, the gas pushes the one-way plug 211 to overcome the elastic force of the auxiliary spring 210 and move away from the inside of the outlet pipe 207, thereby opening the outlet channel and allowing the gas inside the negative pressure cylinder 203 to be discharged outward. When the gas pressure decreases, the one-way plug 211 resets under the action of the auxiliary spring 210 and re-closes the outlet pipe 207, thereby preventing outside air from flowing back into the negative pressure cylinder 203 and ensuring the stability of the negative pressure structure and the one-way nature of the sampling process.

[0020] like Figure 3 , Figure 9 , Figure 10 As shown, a support shell 402 is fixedly installed inside the detection shell 201. The support shell 402 is located above the clean tank 501 and is used to support the cleaning drive and liquid recovery structure. A cleaning cylinder 401 is fixedly installed at the upper end of the support shell 402. The cleaning cylinder 401 and the cleaning sleeve 301 are coaxially arranged to ensure the stability and alignment accuracy of the cleaning mechanism during axial movement. A drive motor 407 is fixedly installed inside the support shell 402. An output rod 408 is fixedly connected to the output end of the drive motor 407. An active wave ring 406 is fixedly installed on the outer surface of the output rod 408 and is located inside the cleaning cylinder 401. A passive wave ring 405 is sleeved on the outer side of the output rod 408. A rectangular guide groove is opened on the outer surface of the passive wave ring 405. A guide block that cooperates with the rectangular guide groove is fixedly installed on the inner wall of the cleaning cylinder 401. The guide block is embedded in the rectangular guide groove, thereby restricting the passive wave ring 405 to move only up and down along the axial direction and preventing it from rotating with the output rod 408. The active wave ring 406 and the passive wave ring 405 mesh with each other. When the drive motor 407 drives the output rod 408 to rotate, the waveform structure of the active wave ring 406 drives the passive wave ring 405 to generate continuous axial reciprocating motion, thereby converting the rotational motion into stable up and down linear motion. A cleaning brush 404 is fixedly installed on the upper end of the output rod 408. The cleaning brush 404 is located in the upper area of ​​the cleaning cylinder 401. During the cleaning process, when the electric push rod 202 drives the cleaning sleeve 301 to move downward and contact the upper end of the cleaning cylinder 401, the nozzle 304 gradually retracts into the cleaning sleeve 301 under the constraint. At this time, the lower end of the cleaning sleeve 301 and the lower end of the detection probe 302 are basically on the same plane. A filter 403 is installed above the passive wave ring 405. The passive wave ring 405 moves up and down to squeeze the filter 403, squeezing out the cleaning liquid inside the filter 403. At the same time, the filter 403 is used to filter and separate the stains brushed off by the cleaning brush 404 and the mixed cleaning liquid. The filtered liquid is collected into the interior of the support shell 402 under the action of gravity. The support shell 402 is connected to the clean tank 501 through the return pipe 502, so that the filtered cleaning liquid can flow back into the clean tank 501, realizing the recycling of the cleaning liquid, reducing the operating cost and improving the continuous working capability of the device.

[0021] The working principle of this invention is: After the detection probe 302 has been working for a period of time, dust and contaminants will gradually accumulate inside the sensing groove 303. In order to avoid the contaminants from affecting the detection accuracy of the sensor, when cleaning is required, the telescopic end of the electric push rod 202 drives the central rod 209 to move downward along the axis, thereby driving the cleaning sleeve 301 to move downward synchronously. During the downward movement of the cleaning sleeve 301, the water pump inside the clean tank 501 is activated, and the cleaning liquid is delivered to the diversion ring 305 through the output pipe 205. The cleaning liquid is then evenly sprayed out through multiple nozzles 304 to pre-spray and soften the dirt on the surface of the detection probe 302 and inside the sensing groove 303, thereby reducing the direct friction on the sensor element during the subsequent mechanical cleaning process and avoiding damage to the sensor due to hard scratching. When the electric actuator 202 drives the center rod 209 to move downward, the negative pressure plug 206 moves downward synchronously inside the negative pressure cylinder 203, causing the volume of the upper cavity to gradually increase, thereby creating a negative pressure environment above the negative pressure plug 206. When the negative pressure plug 206 moves to the lower large-diameter area of ​​the negative pressure cylinder 203, the exhaust pipe 208 connects with the negative pressure area above the negative pressure plug 206. Under the action of pressure difference, the gas in the isolation cover 204 quickly enters the interior of the negative pressure cylinder 203 through the exhaust pipe 208. Subsequently, during the upward movement of the negative pressure plug 206, the air in the chamber above the negative pressure plug 206 is discharged from the exhaust pipe 207. As the cleaning sleeve 301 continues to move downward and contacts the upper end of the cleaning cylinder 401, the nozzle 304 gradually retracts into the cleaning sleeve 301 under the limiting action, and its nozzle is blocked and stops spraying liquid. At this time, the lower end of the cleaning sleeve 301 and the lower end of the detection probe 302 are basically on the same plane, so that the detection area is fully exposed. Under the action of the drive motor 407 and the wave ring transmission structure, the cleaning brush 404 reciprocates to brush the surface of the detection probe 302 and the inside of the sensing groove 303, thoroughly removing the softened stains. The dirty liquid generated during the cleaning process flows into the support shell 402 under the action of gravity, and is recycled to the clean tank 501 through the return pipe 502, realizing the recycling of cleaning liquid. After cleaning and maintenance of a single detection unit 1 is completed, the device returns to the detection state. Multiple detection units 1 are installed in the indoor space according to preset positions. Under the unified scheduling of the control module, each detection unit 1 works in concert. The blower motor 102 drives the turbo fan 104 to run, and the directional airflow is formed through the directional hood 103. The air is transferred between different detection units 1 along a preset path and is sucked in by the sampling receiving hood 101 of the adjacent detection unit 1, realizing the relay transmission of airflow between multiple nodes. Through the aforementioned distributed layout and coordinated blowing and suction control method, a continuous and controllable dynamic flow field is constructed within the monitoring space, enabling indoor air to circulate between each detection node. This covers areas that are difficult to reach using traditional static sampling, significantly improving the comprehensiveness and uniformity of indoor environmental parameter acquisition, effectively avoiding monitoring blind spots, and enhancing the overall detection system's responsiveness to environmental changes and data reliability (e.g., Figure 11 (As shown).

[0022] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An intelligent indoor environment detection device, comprising a detection unit (1), characterized in that: The bottom of the detection unit (1) is fixedly mounted with a bracket (2) by bolts to achieve stable support for the overall device. The detection unit (1) is fixedly mounted with a detection shell (201). The outer surface of the detection shell (201) is fixedly mounted with a sampling receiving cover (101). The shell of the detection unit (1) is provided with an air inlet corresponding to the sampling receiving cover (101) so that external air can enter the detection unit (1) under the guidance to form a stable air intake channel. The detection unit (1) is fixedly mounted with multiple sets of blower motors (102). The output end of each blower motor (102) is fixedly connected with a turbofan (104) to drive the air to form a directional airflow. The shell of the detection unit (1) is provided with an output hole corresponding to the turbofan (104). A directional wind cover (103) is rotatably mounted at the output hole. After multiple detection units (1) are installed in the indoor space according to the preset positions, each detection unit (1) works under the coordinated control of the control module. The blower motor (102) drives the turbo fan (104) to run, so that the air flows between different detection units (1) along the preset path and is sucked in by the sampling receiving cover (101) of the adjacent detection unit (1), realizing the relay transmission of airflow between multiple nodes. An isolation cover (204) is fixedly installed inside the detection housing (201). A detection probe (302) for detecting air quality parameters is fixedly installed on the lower side of the isolation cover (204). A negative pressure cylinder (203) is also fixedly installed inside the detection housing (201). The negative pressure cylinder (203) is located above the isolation cover (204). Multiple sensing slots (303) are opened on the outer surface of the detection probe (302). Each sensing slot (303) integrates a sensor element for detecting different air parameters. An electric actuator (202) is fixedly installed at the upper end of the detection housing (201). A central rod (209) is fixedly connected to the telescopic end of the electric actuator (202). The side wall of the negative pressure cylinder (203) is fixedly connected to an exhaust pipe (208). The air inlet end of the exhaust pipe (208) is connected to the space below the isolation cover (204) to introduce the gas in the isolation cover (204) into the negative pressure cylinder (203). The inner diameter of the negative pressure cylinder (203) changes in a stepped manner along the axial direction. The inner diameter of its lower region is larger than that of its upper region. The air outlet end of the exhaust pipe (208) is connected to the lower large diameter region of the negative pressure cylinder (203). The side wall of the negative pressure cylinder (203) is also fixedly connected to an air outlet pipe (207). A negative pressure plug (206) is fixedly installed on the outer surface of the central rod (209). The outer circumferential surface of the negative pressure plug (206) is in a sealing sliding fit with the inner wall of the negative pressure cylinder (203), thereby forming a variable volume cavity inside the negative pressure cylinder (203).

2. The intelligent indoor environment detection device according to claim 1, characterized in that: The outer side of the detection probe (302) is fitted with a cleaning sleeve (301), and the lower end of the central rod (209) is fixedly connected to the cleaning sleeve (301) to drive the cleaning sleeve (301) to reciprocate along the axial direction of the detection probe (302). A diverter ring (305) is fixedly installed on the inner end of the cleaning sleeve (301).

3. The intelligent indoor environment detection device according to claim 2, characterized in that: The lower end of the cleaning sleeve (301) is provided with multiple nozzles (304), which are arranged in a ring. The lower end of the diversion ring (305) is fixedly connected with multiple guide tubes (307). The lower end of each guide tube (307) extends into the interior of the corresponding nozzle (304) to form a guide channel for the cleaning liquid. The nozzle (304) and the guide tube (307) are connected by a reset spring (306) so that the nozzle (304) maintains its initial downward extension position when no external force is applied. The nozzle (304) faces the sensing groove (303) to achieve directional spraying of the detection area.

4. The intelligent indoor environment detection device according to claim 1, characterized in that: The detection housing (201) has a support housing (402) fixedly installed inside. The support housing (402) is located above the clean tank (501) and is used to support the cleaning drive and liquid recovery structure. The upper end of the support housing (402) has a cleaning cylinder (401) fixedly installed. The cleaning cylinder (401) is coaxially arranged with the cleaning sleeve (301).

5. The intelligent indoor environment detection device according to claim 4, characterized in that: A drive motor (407) is fixedly installed inside the support shell (402). An output rod (408) is fixedly connected to the output end of the drive motor (407). An active wave ring (406) is fixedly installed on the outer surface of the output rod (408), and the active wave ring (406) is located inside the cleaning cylinder (401). A passive wave ring (405) is sleeved on the outer side of the output rod (408).

6. The intelligent indoor environment detection device according to claim 5, characterized in that: The active wave ring (406) and the passive wave ring (405) mesh with each other. When the drive motor (407) drives the output rod (408) to rotate, the waveform structure of the active wave ring (406) drives the passive wave ring (405) to generate continuous axial reciprocating motion, thereby converting the rotational motion into stable up and down linear motion. A cleaning brush (404) is fixedly installed at the upper end of the output rod (408), and the cleaning brush (404) is located in the upper region of the cleaning cylinder (401).

7. An intelligent indoor environment detection method, used in the intelligent indoor environment detection device according to any one of claims 1-6, characterized in that, Includes the following steps: S1: Each detection unit (1) works collaboratively under the unified scheduling of the control module. The blower motor (102) drives the turbofan (104) to run, forming a directional airflow through the directional hood (103), which transmits the air along a preset path between different detection units (1) and is sucked in by the sampling receiving hood (101) of the adjacent detection unit (1), realizing the relay transmission of airflow between multiple nodes. Through the distributed arrangement and blow-suction collaborative control method, a continuous and controllable dynamic flow field is constructed in the monitoring space, so that the indoor air can circulate between each detection node, thereby covering areas that are difficult to reach by traditional static sampling. S2: During the downward movement of the cleaning sleeve (301), the water pump inside the clean tank (501) is started, and the cleaning liquid is delivered to the diversion ring (305) through the output pipe (205). The cleaning liquid is then sprayed evenly through multiple nozzles (304) to pre-spray and soften the dirt on the surface of the detection probe (302) and inside the sensing groove (303), thereby reducing the direct friction on the sensor element during the subsequent mechanical cleaning process and avoiding damage to the sensor due to hard scratching.

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