Construction site dust multi-source perception intelligent early warning system and regulation method

Abstract

The application discloses a kind of construction site dust multi-source perception intelligent early warning system and regulation and control method, including vertical frame body, and the inside of vertical frame body middle part is provided with intelligent control box, and one side of vertical frame body top is provided with support frame, and support frame is rotatably cooperated with spray pipe, and vertical frame body bottom is provided with multiple mobile wheels, and the four sides of vertical frame body bottom are all clamped with counterweight base cooperation;Vertical frame body opposite sides are all provided with layered perception component, and the inside of vertical frame body top is slidably cooperated with lifting patrol perception component, and vertical frame body opposite sides are all rotatably cooperated with adsorption dust fall plate.The integrated vertical frame body of the present application can integrate all functional modules such as intelligent control box, layered perception component, spray pipe and adsorption dust fall plate on the same frame, cooperate with bottom mobile wheel and counterweight base, replace the mode of traditional monitoring and dust fall equipment separated and scattered, and greatly improve the overall integration of equipment.

Description

Technical Field

[0001] This invention relates to the field of environmental monitoring technology in building construction, specifically to a multi-source sensing intelligent early warning system and control method for dust pollution at building construction sites. Background Technology

[0002] Construction site dust is a significant source of urban particulate matter pollution and a core indicator for civilized construction site management. In recent years, local housing and construction and environmental protection departments have successively issued standards for construction site dust control, explicitly requiring construction sites to be equipped with online dust monitoring and dust control equipment to achieve real-time monitoring and closed-loop management of dust pollution. Dust monitoring and control devices have become standard equipment for green and civilized construction.

[0003] Currently, most dust monitoring and suppression equipment at construction sites is deployed in a separate manner. Fixed monitoring poles, mobile inspection equipment, and dust suppression facilities within the perimeter enclosures operate independently, resulting in a scattered deployment, low equipment integration, and fixed sensing points. This limits the collection of dust data to a limited height, failing to cover dust diffusion layers at different heights. Furthermore, the fixed angle of the spraying mechanism prevents dynamic adjustment of the spray coverage based on dust distribution, leading to poor dust suppression accuracy. Therefore, there is an urgent need to design a multi-source sensing intelligent early warning system and control method for dust at construction sites to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-source sensing intelligent early warning system and control method for dust pollution at construction sites, in order to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A multi-source sensing intelligent early warning system for dust at construction sites includes a vertical frame, an intelligent control box installed in the middle of the vertical frame, a support frame installed on one side of the top of the vertical frame, a spray pipe rotatably fitted inside the support frame, multiple casters installed at the bottom of the vertical frame, and counterweight bases snapped into the four sides of the bottom of the vertical frame. The vertical frame is equipped with layered sensing components on both sides. A lifting and circulating sensing component is slidably fitted inside the top of the vertical frame. Dust-absorbing plates are rotatably fitted on both sides of the vertical frame. A water supply component that cooperates with the spray pipe is installed on the counterweight base. Spray heads are installed at both ends of the spray pipe. An adjustable intermittent spraying mechanism that cooperates with the spray pipe is rotatably connected to the top of the support frame. A multi-level sound and light warning unit is installed on the top of the vertical frame.

[0006] Furthermore, the intelligent control box is a waterproof enclosure, and a main control circuit board is installed inside the intelligent control box. The main control circuit board integrates a data storage module, a data comparison module, and a wireless communication module. The data comparison module has a built-in three-level dust concentration threshold.

[0007] Furthermore, the layered sensing component is provided with bottom sensing nodes (15), middle sensing nodes, and upper sensing nodes at equal intervals from bottom to top along the height direction of the vertical frame. Each sensing node integrates a PM2.5 sensor, a PM10 sensor, a wind speed and direction sensor, and a temperature and humidity sensor.

[0008] Furthermore, the multi-level sound and light warning unit includes a warning light pole installed on the top of the vertical frame, a three-level warning light set on one side of the warning light pole, and a buzzer set on the top of the warning light pole. The three-level warning light and the buzzer are both electrically connected to the intelligent control box.

[0009] Furthermore, the vertical frame has slots on all four sides of its bottom, and a locking block is provided on one side of the counterweight base. The locking block engages with the slots, and the bottom of the counterweight base is lower than the ground where the moving wheels are in contact.

[0010] Furthermore, the lifting and circulating sensing component includes a lifting rod that slides within the top of the vertical frame, a drive motor disposed within the vertical frame, and a drive screw installed at the output end of the drive motor. The drive screw is threadedly engaged with the lifting rod. A circulating sensing module is disposed at the top of the lifting rod. Both the circulating sensing module and the drive motor are electrically connected to the intelligent control box.

[0011] Furthermore, the water supply assembly includes a booster pump mounted on top of one of the counterweight bases, a water supply pipe installed at the output end of the booster pump, and a T-joint at one end of the water supply pipe. The spray pipe is split into two parts in the middle, and the two ends of the T-joint are rotatably connected to the two spray pipes respectively. A water wheel is fixedly installed inside each spray head, and multiple inclined nozzles are arranged around the spray head. The booster pump is electrically connected to the intelligent control box.

[0012] Furthermore, the adjustable intermittent spraying mechanism includes a rotating frame rotatably fitted on the top of the support frame and multiple connecting frames disposed at the bottom of the rotating frame. Frictional resistance is provided between the rotating frame and the support frame. The multiple connecting frames are rotatably fitted with the spray pipe. Water channels are opened in the connecting frames. Multiple through holes corresponding to the multiple water channels are provided on the spray pipe. Multiple fixed nozzles corresponding to the multiple water channels are provided on the top of the rotating frame.

[0013] Furthermore, the adsorption dust-collecting plate includes a side frame rotatably fitted on one side of the vertical frame, an electrostatic adsorption mesh plate disposed in the side frame, and an electric telescopic support rod rotatably fitted on one side of the vertical frame. The output end of the electric telescopic support rod is rotatably connected to one side of the side frame, and the electric telescopic support rod is electrically connected to the intelligent control box.

[0014] A control method for an intelligent early warning system, comprising any one of the early warning systems described above, includes the following steps: Step 1: Equipment Setup and Initialization. Use the casters to move the vertical frame to the target location. Secure the counterweight base to the bottom of the frame to complete equipment placement. After connecting the water and power supply, start the intelligent control box to complete system initialization. Step 2: Multi-source vertical dust data collection. The dust concentration and environmental parameters at a fixed height are collected by the bottom, middle and top sensing nodes of the layered sensing component. At the same time, the lifting and circulating sensing component is driven to move back and forth vertically to collect circulating dust data in the entire height range. Both types of data are transmitted to the intelligent control box simultaneously. Step 3: Data fusion and pollution level determination. The intelligent control box fuses multi-source data and compares the fused dust concentration value with the built-in three-level concentration threshold through the data comparison module. Combined with wind speed and wind direction parameters, the determination result is corrected to determine the current dust pollution level. Step 4: Issue graded audible and visual warnings. Based on the determined pollution level, control the multi-level audible and visual warning units to activate the corresponding level of warning lights and buzzer sounds to issue differentiated warning signals to the site. Step 5: Adjustable intermittent spray control. Adjust the water supply power of the water conveyance component according to the pollution level, and adjust the spray angle, coverage and spray frequency in conjunction with the adjustable intermittent spray mechanism. Implement dust suppression operations of corresponding intensity through the spray heads and fixed nozzles at both ends of the spray pipe. Step Six: Lateral adsorption dust suppression linkage. When the pollution level reaches moderate or above, control the adsorption dust suppression plate to expand outward, and adsorb lateral dust through electrostatic adsorption mesh plate, forming a full-area dust suppression barrier in conjunction with spraying. Step 7: Data storage and uploading. The intelligent control box stores all monitoring, early warning and control data in real time, and uploads it synchronously to the remote monitoring platform via the wireless communication module.

[0015] In the above technical solution, the present invention provides a multi-source sensing intelligent early warning system and control method for dust pollution at construction sites, which has the following beneficial effects: 1. The integrated vertical frame allows all functional modules, such as the intelligent control box, layered sensing components, spray pipes, and dust collection plates, to be centrally integrated on the same frame. Combined with the bottom casters and counterweight base, it replaces the traditional scattered deployment of monitoring and dust collection equipment, greatly improving the overall integration of the equipment, facilitating rapid on-site deployment, and its regular structure is compatible with drawing drawings and standardized production.

[0016] 2. By combining the layered sensing components with the lifting and roving sensing components, the device can simultaneously possess dual sensing capabilities: fixed-height layered monitoring and full-height roving blind spot filling. Fixed points cover the core operating height range, while the lifting structure dynamically traverses different heights, filling vertical monitoring blind spots and comprehensively covering the dust diffusion distribution at each height level, thereby improving the comprehensiveness and representativeness of dust data collection.

[0017] 3. By combining the adjustable intermittent spraying mechanism with the rotatable spray pipe inside the support frame, the spray heads at both ends can dynamically adjust the spraying angle and coverage according to the dust distribution. Combined with the water conveying components, it can achieve graded intermittent spraying, accurately match the dust concentration level, and replace the traditional fixed-angle fully open and fully closed rough spraying method, effectively improving the accuracy of dust suppression and reducing the ineffective consumption of water resources. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a multi-source sensing intelligent early warning system and control method for dust at construction sites according to the present invention.

[0020] Figure 2 This is a schematic diagram of the layered sensing component structure provided in an embodiment of the intelligent early warning system and control method for multi-source dust at construction sites according to the present invention.

[0021] Figure 3 This is a schematic diagram of the counterweight base structure provided in an embodiment of the intelligent early warning system and control method for multi-source dust generation at construction sites according to the present invention.

[0022] Figure 4 This is a schematic diagram of the lifting and circulating sensing component structure provided in an embodiment of the intelligent early warning system and control method for multi-source dust at construction sites according to the present invention.

[0023] Figure 5This is a schematic diagram of the water conveyance component structure provided in an embodiment of the intelligent early warning system and control method for multi-source dust generation at construction sites according to the present invention.

[0024] Figure 6 This is a schematic diagram of a sprinkler pipe structure provided in an embodiment of a multi-source sensing intelligent early warning system and control method for dust at construction sites according to the present invention.

[0025] 1. Vertical frame; 2. Intelligent control box; 3. Support frame; 4. Spray pipe; 5. Casters; 6. Counterweight base; 7. Layered sensing components; 8. Lifting and circulating sensing components; 9. Dust-absorbing plate; 10. Water supply components; 11. Spray head; 12. Adjustable intermittent spraying mechanism; 13. Multi-level sound and light warning unit; 14. Main control circuit board; 15. Bottom layer sensing node; 16. Middle layer sensing node; 17. Top layer sensing node; 18. 19. Warning light pole; 20. Level 3 warning light; 21. Buzzer; 22. Slot; 23. Locking block; 24. Lifting rod; 25. Drive motor; 26. Drive screw; 27. Booster pump; 28. Water pipe; 29. ​​T-joint; 30. Water wheel; 31. Tilted nozzle; 32. Rotating frame; 33. Connecting frame; 34. Water channel; 35. Fixed nozzle; 36. Side frame; 37. Electrostatic adsorption mesh; 38. Electric telescopic support rod. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-6 As shown in the figure, the present invention provides a multi-source sensing intelligent early warning system for dust at construction sites, including a vertical frame 1, an intelligent control box 2 in the middle of the vertical frame 1, a support frame 3 on one side of the top of the vertical frame 1, a spray pipe 4 rotatably fitted inside the support frame 3, multiple casters 5 at the bottom of the vertical frame 1, and counterweight bases 6 snapped into place on all four sides of the bottom of the vertical frame 1. The vertical frame 1 is equipped with layered sensing components 7 on both sides. The vertical frame 1 is slidably fitted with lifting and circulating sensing components 8 on the top. The vertical frame 1 is rotatably fitted with dust-absorbing plates 9 on both sides. The counterweight base 6 is equipped with a water supply component 10 that cooperates with the spray pipe 4. Spray heads 11 are provided at both ends of the spray pipe 4. The top of the support frame 3 is rotatably connected with an adjustable intermittent spraying mechanism 12 that cooperates with the spray pipe 4. The top of the vertical frame 1 is equipped with a multi-level sound and light warning unit 13.

[0028] Reference Figure 2In this embodiment, the intelligent control box 2 is a waterproof enclosure. Inside the intelligent control box 2 is a main control circuit board 14, which integrates a data storage module, a data comparison module, and a wireless communication module. The data comparison module has a built-in three-level dust concentration threshold. As the core control carrier of the device, the intelligent control box 2 adopts a waterproof enclosure structure to adapt to the complex and harsh environment of the construction site. The internal main control circuit board 14 integrates data storage, comparison, and wireless communication modules, and with the built-in three-level dust concentration threshold, it can complete dust data calculation, level determination, and signal output, providing stable control and computational support for the early warning and regulation of the entire system.

[0029] Reference Figure 2 In this embodiment, the layered sensing component 7 is arranged equidistantly from bottom to top along the height direction of the vertical frame 1, consisting of a bottom sensing node 15, a middle sensing node 16, and a top sensing node 17. Each sensing node integrates a PM2.5 sensor, a PM10 sensor, a wind speed and direction sensor, and a temperature and humidity sensor. The layered sensing component 7 is arranged vertically in layers through the bottom sensing node 15, the middle sensing node 16, and the top sensing node 17. Each node integrates multiple types of environmental sensors, which can simultaneously collect PM2.5 and PM10 concentrations, as well as wind speed, wind direction, temperature, and humidity parameters at different heights, constructing a three-dimensional sensing layer and providing a multi-dimensional and comprehensive basic data source for dust level determination.

[0030] Reference Figure 3 The multi-level audible and visual early warning unit 13 in this embodiment includes an early warning light pole 18 installed on the top of the vertical frame 1, a three-level warning light 19 installed on one side of the early warning light pole 18, and a buzzer 20 installed on the top of the early warning light pole 18. Both the three-level warning light 19 and the buzzer 20 are electrically connected to the intelligent control box 2. Using the early warning light pole 18 as the mounting carrier, the multi-level audible and visual early warning unit 13 outputs different colored light signals through the three-level warning light 19, and outputs differentiated frequency prompts through the buzzer 20. This allows for a direct differentiation of dust pollution levels, facilitating rapid identification of pollution levels and prompting on-site personnel for control measures, effectively improving early warning recognition and on-site response efficiency.

[0031] Reference Figure 3 In this embodiment, the vertical frame 1 has slots 21 on all four sides of its bottom, and a locking block 22 is provided on one side of the counterweight base 6. The locking block 22 engages with the slots 21, and the bottom of the counterweight base 6 is lower than the ground where the moving wheels 5 are in contact. The slots 21 at the bottom of the vertical frame 1 engage with the locking blocks 22 of the counterweight base 6, which allows for quick assembly and disassembly of the counterweight base 6. After being positioned, the bottom of the counterweight base 6 is lower than the ground where the moving wheels 5 are in contact, replacing the moving wheels 5 in bearing the weight of the device. This ensures the stability of the device and facilitates disassembly and weight reduction during transportation, adapting to the flexible deployment requirements of construction sites.

[0032] Reference Figure 4The lifting and circulating sensing component 8 in this embodiment includes a lifting rod 23 slidably fitted inside the top of the vertical frame 1, a drive motor 24 installed inside the vertical frame 1, and a drive screw 25 installed at the output end of the drive motor 24. The drive screw 25 is threadedly fitted to the lifting rod 23. A circulating sensing module is installed at the top of the lifting rod 23. Both the circulating sensing module and the drive motor 24 are electrically connected to the intelligent control box 2. The lifting and circulating sensing component 8 drives the drive screw 25 to rotate through the drive motor 24, driving the lifting rod 23 to move back and forth vertically, so that the top circulating sensing module traverses the entire height range. This can fill the vertical monitoring blind spots between fixed sensing nodes, supplement the collection of dynamic height dust data, and effectively improve the comprehensiveness and accuracy of vertical dust sensing.

[0033] Reference Figure 5 , Figure 6 The water supply assembly 10 in this embodiment includes a booster pump 26 mounted on top of one of the counterweight bases 6, a water supply pipe 27 installed at the output end of the booster pump 26, and a three-way connector 28 at one end of the water supply pipe 27. The spray pipe 4 is split into two parts in the middle, and the two ends of the three-way connector 28 are rotatably connected to the two spray pipes 4 respectively. A water wheel 29 is fixedly installed inside each spray head 11, and multiple inclined nozzles 30 are arranged around the spray head 11. The booster pump 26 is electrically connected to the intelligent control box 2. The water supply assembly 10 provides stable pressure water supply power through the booster pump 26, and the water is diverted to the two spray pipes 4 through the water supply pipe 27 and the three-way connector 28. The water wheel 29 in the spray head 11, together with the inclined nozzles 30 on the periphery, forms a swirling atomization effect, which can improve the water mist diffusion range and dust reduction efficiency, and provide a stable water supply and atomization basis for spray dust reduction.

[0034] Reference Figure 6 The adjustable intermittent spraying mechanism 12 of this embodiment includes a rotating frame 31 rotatably fitted on the top of a support frame 3 and multiple connecting frames 32 disposed at the bottom of the rotating frame 31. Frictional resistance is provided between the rotating frame 31 and the support frame 3. The multiple connecting frames 32 rotatably fit with a spray pipe 4. A water channel 33 is provided within the connecting frame 32. Multiple through holes corresponding to the multiple water channels 33 are provided on the spray pipe 4. Multiple fixed nozzles 34 corresponding to the multiple water channels 33 are provided on the top of the rotating frame 31. The adjustable intermittent spraying mechanism 12 drives the connecting frames 32 to rotate via the rotating frame 31, causing the water channels 33 to misalign with the through holes of the spray pipe 4, thus achieving intermittent spraying. Simultaneously, the spraying direction of the fixed nozzles 34 can be adjusted, flexibly changing the spray coverage area. Combined with a graded control strategy, this achieves precise dust suppression and effectively reduces the ineffective consumption of water resources.

[0035] Reference Figure 5The dust-absorbing plate 9 in this embodiment includes a side frame 35 rotatably fitted to one side of the vertical frame 1, an electrostatic adsorption mesh plate 36 disposed within the side frame 35, and an electric telescopic support rod 37 rotatably fitted to one side of the vertical frame 1. The output end of the electric telescopic support rod 37 is rotatably connected to one side of the side frame 35, and the electric telescopic support rod 37 is electrically connected to the intelligent control box 2. The dust-absorbing plate 9 drives the side frame 35 to unfold and retract around the hinge point via the electric telescopic support rod 37. After unfolding, the electrostatic adsorption mesh plate 36 is energized to generate an electrostatic field, which can actively adsorb dust particles on the side of the device, filling the dead corners of lateral dust collection; after retraction, it fits against the side wall of the frame to save space, taking into account both the overall dust collection capability and the convenience of transportation and deployment.

[0036] This invention provides a control method for an intelligent early warning system, comprising an early warning system according to any of the above embodiments, including the following steps: Step 1: Equipment Setup and Initialization. Move the vertical frame 1 to the target location using the casters 5. Secure the counterweight base 6 to the bottom of the frame to complete equipment placement. After connecting the water and power supply, start the intelligent control box 2 to complete system initialization. Step 2: Multi-source vertical dust data collection. The dust concentration and environmental parameters at a fixed height are collected through the bottom, middle and top sensing nodes of the layered sensing component 7. At the same time, the lifting and circulating sensing component 8 is driven to move back and forth vertically to collect circulating dust data in the entire height range. The two types of data are transmitted to the intelligent control box 2 simultaneously. Step 3: Data fusion and pollution level determination. The intelligent control box 2 fuses multi-source data and compares the fused dust concentration value with the built-in three-level concentration threshold through the data comparison module. Combined with wind speed and wind direction parameters, the determination result is corrected to determine the current dust pollution level. Step 4: Issue graded audible and visual warnings. Based on the determined pollution level, control the multi-level audible and visual warning unit 13 to activate the corresponding level of warning lights and buzzer sounds to issue differentiated warning signals to the site. Step 5: Adjustable intermittent spray control. Adjust the water supply power of the water supply component 10 according to the pollution level, and adjust the spray angle, coverage and spray frequency in conjunction with the adjustable intermittent spray mechanism 12. Implement dust suppression operation of corresponding intensity through the spray head 11 and fixed nozzle 34 at both ends of the spray pipe 4. Step 6: Lateral adsorption dust suppression linkage. When the pollution level reaches moderate or above, control the adsorption dust suppression plate 9 to expand outward, and adsorb lateral dust through the electrostatic adsorption mesh plate 36, forming a full-area dust suppression barrier in conjunction with spraying. Step 7: Data storage and uploading. The intelligent control box 2 stores all monitoring, early warning and control data in real time and uploads it to the remote monitoring platform synchronously through the wireless communication module.

[0037] Working principle: When in use, the device is first moved to the preset monitoring point on the construction site by the moving wheels 5 at the bottom of the vertical frame 1. The four counterweight bases 6 are then inserted into the corresponding slots 21 at the bottom of the vertical frame 1 by the locking blocks 22, so that the bottom side of the counterweight bases 6 is in contact with the ground to support the device, thus completing the positioning and fixing of the equipment. The booster pump 26 of the water supply component 10 is connected to the on-site water supply pipeline. After the power supply of the equipment is turned on, the system is started through the intelligent control box 2.

[0038] After the device is started, the layered sensing components 7 on both sides of the vertical frame 1 begin to continuously collect data. The bottom sensing node 15, the middle sensing node 16, and the top sensing node 17 collect PM2.5 and PM10 concentrations, as well as wind speed, wind direction, temperature, and humidity parameters at different fixed heights. At the same time, the drive motor 24 drives the drive screw 25 to rotate, driving the lifting rod 23 to move up and down along the inside of the vertical frame 1, driving the top roving sensing module to traverse the entire height range and supplement the collection of dust data in the vertical blind area. The two types of sensing data are synchronously transmitted to the main control circuit board 14 in the intelligent control box 2.

[0039] The main control circuit board 14 compares the fused dust data with the built-in three-level concentration thresholds through the data comparison module to determine the current dust pollution level. After the determination is completed, it controls the multi-level sound and light warning unit 13 to start the corresponding level of warning: the three-level warning light 19 lights up the light of the corresponding color, and the buzzer 20 outputs the prompt sound of the corresponding frequency to intuitively release the graded warning signal to the on-site personnel.

[0040] Meanwhile, the intelligent control box 2 adjusts the operation of the water supply component 10 and the adjustable intermittent spraying mechanism 12 according to the dust level: the booster pump 26 sends water through the water supply pipe 27 and the three-way connector 28 into the spray pipes 4 on both sides. When the water flows through the spray head 11, it drives the internal water wheel 29 and the spray pipe 4 to rotate, which, together with the tilting nozzle 30, forms a swirling atomized spray. The rotating frame 31 can be rotated to adjust the spraying direction of the fixed nozzle 34. The water channel 33 and the through hole of the spray pipe 4 are misaligned to achieve intermittent spraying, accurately matching the dust concentration and distribution area to adjust the spraying intensity and coverage.

[0041] When the dust pollution level reaches moderate or higher, the intelligent control box 2 controls the extension of the electric telescopic support rod 37, pushing the side frame 35 outward to a set angle. The electrostatic adsorption mesh plate 36 is energized to generate an electrostatic field, actively adsorbing dust particles on the side of the device. Combined with the top spray, this forms an all-round dust suppression barrier, preventing dust from spreading to the surrounding area. Throughout the operation of the device, all monitoring data, early warning records, and control action logs are stored in the data storage module of the main control circuit board 14, and simultaneously uploaded to the remote monitoring platform via the wireless communication module, achieving full traceability of dust control.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-source sensing intelligent early warning system for dust pollution at construction sites, comprising a vertical frame (1), characterized in that, The vertical frame (1) is equipped with an intelligent control box (2) in the middle, and a support frame (3) is provided on one side of the top of the vertical frame (1). A spray pipe (4) is rotatably fitted inside the support frame (3). Multiple moving wheels (5) are provided at the bottom of the vertical frame (1). A counterweight base (6) is snapped into each of the four sides of the bottom of the vertical frame (1). The vertical frame (1) is provided with layered sensing components (7) on both sides. The vertical frame (1) is slidably fitted with lifting and circulating sensing components (8) on the top. The vertical frame (1) is rotatably fitted with dust adsorption plates (9) on both sides. The counterweight base (6) is provided with a water supply component (10) that cooperates with the spray pipe (4). Spray heads (11) are provided at both ends of the spray pipe (4). The top of the support frame (3) is rotatably connected with an adjustable intermittent spraying mechanism (12) that cooperates with the spray pipe (4). The top of the vertical frame (1) is equipped with a multi-level sound and light warning unit (13).

2. The intelligent early warning system for multi-source dust generation at construction sites according to claim 1, characterized in that, The intelligent control box (2) is a waterproof box. The intelligent control box (2) is equipped with a main control circuit board (14). The main control circuit board (14) integrates a data storage module, a data comparison module, and a wireless communication module. The data comparison module has a built-in three-level dust concentration threshold.

3. The intelligent early warning system for multi-source dust generation at construction sites according to claim 1, characterized in that, The layered sensing component (7) is arranged with bottom sensing nodes (15), middle sensing nodes (16), and top sensing nodes (17) at equal intervals from bottom to top along the height direction of the vertical frame (1). Each sensing node integrates a PM2.5 sensor, a PM10 sensor, a wind speed and direction sensor, and a temperature and humidity sensor.

4. The intelligent early warning system for multi-source dust generation at construction sites according to claim 1, characterized in that, The multi-level sound and light warning unit (13) includes a warning light pole (18) installed on the top of the vertical frame (1), a three-level warning light (19) set on one side of the warning light pole (18), and a buzzer (20) set on the top of the warning light pole (18). The three-level warning light (19) and the buzzer (20) are both electrically connected to the intelligent control box (2).

5. The intelligent early warning system for multi-source dust generation at construction sites according to claim 1, characterized in that, The vertical frame (1) has slots (21) on all four sides of its bottom. The counterweight base (6) has a block (22) on one side. The block (22) engages with the slot (21). The bottom of the counterweight base (6) is lower than the ground where the moving wheel (5) is in contact with the ground.

6. The intelligent early warning system for multi-source dust generation at construction sites according to claim 1, characterized in that, The lifting and circulating sensing component (8) includes a lifting rod (23) that slides within the top of the vertical frame (1), a drive motor (24) located within the vertical frame (1), and a drive screw (25) installed at the output end of the drive motor (24). The drive screw (25) is threadedly engaged with the lifting rod (23). A circulating sensing module is located at the top of the lifting rod (23). Both the circulating sensing module and the drive motor (24) are electrically connected to the intelligent control box (2).

7. The intelligent early warning system for multi-source dust generation at construction sites according to claim 1, characterized in that, The water supply assembly (10) includes a booster pump (26) installed on the top of one of the counterweight bases (6), a water supply pipe (27) installed at the output end of the booster pump (26), and a three-way connector (28) installed at one end of the water supply pipe (27). The spray pipe (4) is split into two parts in the middle. The two ends of the three-way connector (28) are rotatably connected to the two spray pipes (4) respectively. A water wheel (29) is fixedly installed inside each spray head (11). Multiple inclined nozzles (30) are arranged around the spray head (11). The booster pump (26) is electrically connected to the intelligent control box (2).

8. The intelligent early warning system for multi-source dust generation at construction sites according to claim 7, characterized in that, The adjustable intermittent spraying mechanism (12) includes a rotating frame (31) rotatably fitted on the top of the support frame (3) and a plurality of connecting frames (32) disposed at the bottom of the rotating frame (31). There is frictional resistance between the rotating frame (31) and the support frame (3). The plurality of connecting frames (32) are rotatably fitted with the spray pipe (4). A water channel (33) is provided in the connecting frame (32). A plurality of through holes corresponding to the plurality of water channels (33) are provided on the spray pipe (4). A plurality of fixed nozzles (34) corresponding to the plurality of water channels (33) are provided on the top of the rotating frame (31).

9. A multi-source sensing intelligent early warning system for dust pollution at construction sites according to claim 1, characterized in that, The dust collection plate (9) includes a side frame (35) rotatably fitted on one side of the vertical frame (1), an electrostatic adsorption mesh plate (36) set in the side frame (35), and an electric telescopic support rod (37) rotatably fitted on one side of the vertical frame (1). The output end of the electric telescopic support rod (37) is rotatably connected to one side of the side frame (35), and the electric telescopic support rod (37) is electrically connected to the intelligent control box (2).

10. A control method for an intelligent early warning system, comprising the early warning system according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Equipment setup and initialization. Move the vertical frame (1) to the target location using the casters (5), and secure the counterweight base (6) to the bottom of the frame to complete the equipment placement. After connecting the water and power supply, start the intelligent control box (2) to complete the system initialization. Step 2: Multi-source vertical dust data collection. The dust concentration and environmental parameters at a fixed height are collected through the bottom, middle and high-level sensing nodes of the layered sensing component (7). At the same time, the lifting and circulating sensing component (8) is driven to move back and forth vertically to collect circulating dust data in the entire height range. The two types of data are transmitted to the intelligent control box (2) simultaneously. Step 3: Data fusion and pollution level determination. The intelligent control box (2) performs fusion processing on multi-source data. The data comparison module compares the fused dust concentration value with the built-in three-level concentration threshold. Combined with wind speed and wind direction parameters, the determination result is corrected to determine the current dust pollution level. Step 4: Issue graded sound and light warnings. Based on the determined pollution level, control the multi-level sound and light warning unit (13) to activate the corresponding level of warning lights and buzzer prompts to issue differentiated warning signals to the site. Step 5: Adjustable intermittent spray control, adjust the water supply power of the water supply component (10) according to the pollution level, and adjust the spray angle, coverage and spray frequency in conjunction with the adjustable intermittent spray mechanism (12). The corresponding intensity of dust suppression operation is carried out through the spray head (11) and fixed nozzle (34) at both ends of the spray pipe (4). Step 6: Lateral adsorption dust suppression linkage. When the pollution level reaches moderate or above, control the adsorption dust suppression plate (9) to expand outward, and adsorb lateral dust through the electrostatic adsorption mesh plate (36), and form a full-area dust suppression barrier in conjunction with spraying. Step 7: Data storage and uploading. The intelligent control box (2) stores all monitoring, early warning and control data in real time and uploads them to the remote monitoring platform through the wireless communication module.

Images