A dust control method and system based on construction

Abstract

The application relates to the technical field of construction site dust control, and discloses a dust control method and system based on building construction, which comprises the following steps: collecting dust concentration, environmental data and operation data of a building construction site; making dust control decisions according to the results of primary and secondary judgments; calculating a dust concentration change value within a preset time length, and obtaining an initial spraying time length of a dust spraying device according to the dust concentration change value and an environmental temperature; correcting the initial spraying time length according to an operation influence coefficient and historical data; obtaining a current dust concentration after spraying is completed, judging whether secondary dust control is needed according to the current dust concentration, and if the secondary dust control is needed, calculating a secondary dust control time length according to the current dust concentration and a pre-set concentration standard value, and then performing the secondary dust control. The dust spraying time length is dynamically adjusted through multiple dimensions, and the dust suppression effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of construction site dust control, in particular to a dust control method and system based on building construction. BACKGROUND

[0002] With the acceleration of urbanization, the scale of building construction is increasing day by day, and the problem of construction dust pollution is becoming increasingly serious. The dust generated during the construction process not only reduces the visibility and affects the safety of construction, but also poses a serious threat to the health of surrounding residents. PM2.5, PM10 and other suspended particulate matter can cause respiratory diseases, cardiovascular diseases and other health problems. At the same time, construction dust can also damage the ecological environment, affect air quality and vegetation growth, and exacerbate the formation of smog and other adverse weather conditions. Therefore, how to effectively control the construction dust has become a key problem that needs to be solved in the construction industry and the environmental protection field.

[0003] At present, the traditional methods of dust control in building construction include water spraying and dust cover. These methods have many limitations: water spraying often relies on manual experience to control the spraying time and amount, which cannot be accurately adjusted according to the actual dust conditions, leading to waste of water resources, and the dust control effect is greatly reduced under unfavorable weather conditions such as high wind speed and low humidity. Although dust cover can suppress dust to some extent, it is difficult to cover the frequently operated areas continuously, and the dust cover is prone to damage after long-term use, resulting in high maintenance costs. In addition, most of the existing dust control technologies only focus on a single indicator of dust concentration, ignoring the influence of factors such as construction equipment operation intensity and environmental weather conditions on dust generation and diffusion, and cannot achieve dynamic and accurate control of dust.

[0004] Therefore, it is necessary to provide a dust control method and system based on building construction to solve the problems of current dust control methods in building construction, such as reliance on manual experience, waste of water resources, effect limited by weather conditions, high maintenance cost of coverage, and inability to dynamically and accurately control dust. SUMMARY

[0005] In view of this, the present application provides a dust control method and system based on building construction, which aims to solve the problems of current dust control methods in building construction, such as reliance on manual experience, waste of water resources, effect limited by weather conditions, high maintenance cost of coverage, and inability to dynamically and accurately control dust.

[0006] The present application provides a dust control method based on building construction, comprising:

[0007] Collecting dust concentration, environmental data and operation data of the construction site; wherein the environmental data includes environmental humidity, environmental temperature and environmental wind speed, and the operation data includes construction equipment operation time and construction equipment quantity;

[0008] making a first determination on whether to carry out dust reduction according to the dust concentration, making a second determination on whether to carry out dust reduction according to the environmental humidity and the environmental wind speed, and making a dust reduction decision according to the determination results of the first determination and the second determination;

[0009] if the dust reduction decision is to carry out dust reduction, calculating a dust concentration change value within a preset time length, and obtaining a spray time length initial value of a dust reduction spray device according to the dust concentration change value and the environmental temperature;

[0010] obtaining a work influence coefficient based on the construction equipment work time length and the construction equipment quantity, determining whether to correct the spray time length initial value according to the work influence coefficient, and if it is determined to correct the spray time length initial value, correcting the spray time length initial value according to the work influence coefficient and historical data;

[0011] obtaining a current dust concentration after spraying is completed, determining whether to carry out secondary dust reduction according to the current dust concentration, and if it is determined to carry out secondary dust reduction, calculating a secondary dust reduction time length according to the current dust concentration and a pre-set concentration standard value, and carrying out secondary dust reduction.

[0012] Further, when making the first determination on whether to carry out dust reduction according to the dust concentration and making the second determination on whether to carry out dust reduction according to the environmental humidity and the environmental wind speed, the method comprises:

[0013] setting a dust concentration threshold value, and if the dust concentration is greater than the dust concentration threshold value, the first determination result is to carry out dust reduction; otherwise, the first determination result is not to carry out dust reduction;

[0014] setting an environmental humidity minimum value and an environmental wind speed threshold value, and if the environmental wind speed is greater than or equal to the environmental wind speed threshold value and the environmental humidity is less than or equal to the environmental humidity minimum value, the second determination result is to carry out dust reduction; otherwise, the second determination result is not to carry out dust reduction.

[0015] Further, when making the dust reduction decision according to the determination results of the first determination and the second determination, the method comprises:

[0016] if the first determination result is not to carry out dust reduction and the second determination result is not to carry out dust reduction, the dust reduction decision is not to carry out dust reduction;

[0017] otherwise, the dust reduction decision is to carry out dust reduction.

[0018] Further, when obtaining the spray time length initial value of the dust reduction spray device according to the dust concentration change value and the environmental temperature, the method comprises:

[0019] calculating the dust concentration change value within the preset time length according to the dust concentration;

[0020] a concentration change limit value and a temperature limit value are set, if the dust concentration change value is greater than or equal to the concentration change limit value and the ambient temperature is greater than or equal to the temperature limit value, the initial value of the spraying time length is a first time length;

[0021] if the dust concentration change value is greater than or equal to the concentration change limit value and the ambient temperature is less than the temperature limit value, the initial value of the spraying time length is a second time length;

[0022] if the dust concentration change value is less than the concentration change limit value and the ambient temperature is greater than or equal to the temperature limit value, the initial value of the spraying time length is the second time length;

[0023] if the dust concentration change value is less than the concentration change limit value and the ambient temperature is less than the temperature limit value, the initial value of the spraying time length is a third time length;

[0024] the first time length is greater than the second time length, and the second time length is greater than the third time length.

[0025] Further, when the operation influence coefficient is obtained based on the operation time length of the construction equipment and the number of construction equipment, it comprises:

[0026] a dust influence coefficient of each type of construction equipment within a fixed time length is preset, and the value range of the dust influence coefficient is (0, 1);

[0027] The operation influence coefficient of each type of construction equipment is calculated respectively; wherein the operation influence coefficient of each type of construction equipment = dust influence coefficient × (construction equipment operation time length / fixed time length) × number of this type of construction equipment;

[0028] The operation influence coefficients of each type of construction equipment are weighted and summed to obtain the operation influence coefficient.

[0029] Further, when it is determined whether to correct the initial value of the spraying time length according to the operation influence coefficient, it comprises:

[0030] a maximum influence coefficient is set, if the operation influence coefficient is greater than the maximum influence coefficient, it is determined that the initial value of the spraying time length needs to be corrected;

[0031] if the operation influence coefficient is less than or equal to the maximum influence coefficient, it is determined that the initial value of the spraying time length does not need to be corrected.

[0032] Further, when the initial value of the spraying time length is corrected according to the operation influence coefficient and historical data, it comprises:

[0033] The historical correction coefficient corresponding to the job influence coefficient in the historical data is acquired, the historical correction coefficient is taken as a current correction coefficient to adjust the initial spraying time length, and a corrected spraying time length is obtained;

[0034] The corrected spraying time length is a product value of the initial spraying time length and the current correction coefficient.

[0035] Further, the current dust concentration after spraying is acquired, and whether secondary dust setting is performed according to the current dust concentration, comprising:

[0036] A concentration standard value is set, and if the current dust concentration is greater than the concentration standard value, it is determined that secondary dust setting is needed;

[0037] If the current dust concentration is less than or equal to the concentration standard value, it is determined that secondary dust setting is not needed.

[0038] Further, the secondary dust setting time length is calculated according to the current dust concentration and a pre-set concentration standard value, and secondary dust setting is performed, comprising:

[0039] A concentration difference value between the current dust concentration and the concentration standard value is calculated, and a corresponding historical secondary dust setting time length is searched in historical data according to the concentration difference value;

[0040] The historical secondary dust setting time length is taken as a current secondary dust setting time length for dust setting.

[0041] Compared with the prior art, the present application has the beneficial effects that in the data acquisition link, the dust concentration, environmental data and operation data are comprehensively collected, the operation time and quantity of construction equipment are taken into account, compared with the traditional single monitoring of dust concentration, the actual situation of the construction site can be more comprehensively mastered, and the internal relationship between the construction activity intensity and the dust generation is excavated, thereby laying a solid foundation for subsequent precise control. In the judgment and decision mechanism, a hierarchical decision mode combining primary and secondary judgments is adopted. First, whether dust suppression is needed is preliminarily judged according to the dust concentration, and then the secondary judgment is performed in combination with the environmental humidity and wind speed. This double judgment mode avoids misjudgment caused by a single factor, and effectively improves the accuracy and reliability of the dust suppression decision. For example, in the case of high humidity but slightly exceeding the dust concentration standard, the secondary judgment can avoid unnecessary dust suppression operation, and realize the rational use of resources. In the determination and correction process of the spraying time, the spraying time initial value is determined according to the dust concentration change value and the environmental temperature, and then the spraying time initial value is corrected by combining the operation influence coefficient with the historical data, so that the dynamically changing environment and construction conditions are fully considered. Not only can the spraying time be adjusted in time according to the current dust trend, but also the control strategy can be optimized by using past experience, so that the dust suppression operation is more scientific and reasonable, the dust suppression efficiency is improved, and the waste of water resources is reduced. In the secondary dust suppression link, the dust concentration after spraying is monitored and processed to ensure that the dust suppression effect reaches the expected standard, forming a complete closed-loop control system, and realizing efficient and precise control of the construction dust.

[0042] In another aspect, the present application also provides a dust suppression control system based on building construction, comprising:

[0043] The acquisition module is configured to acquire the dust concentration, environmental data and operation data of the construction site; wherein the environmental data includes environmental humidity, environmental temperature and environmental wind speed, and the operation data includes construction equipment operation time and construction equipment quantity;

[0044] The dust suppression judgment module is configured to make a primary judgment on whether to perform dust suppression according to the dust concentration, make a secondary judgment on whether to perform dust suppression according to the environmental humidity and environmental wind speed, and make a dust suppression decision according to the judgment results of the primary judgment and the secondary judgment;

[0045] The time initial determination module is configured to, if the dust suppression decision is to perform dust suppression, calculate a dust concentration change value within a preset time, and obtain a spraying time initial value of the dust suppression spraying device according to the dust concentration change value and the environmental temperature;

[0046] The time correction module is configured to obtain an operation influence coefficient based on the construction equipment operation time and the construction equipment quantity, judge whether to correct the spraying time initial value according to the operation influence coefficient, and if it is judged to correct the spraying time initial value, correct the spraying time initial value according to the operation influence coefficient and historical data.

[0047] The secondary dust-settling module is configured to acquire a current dust concentration after spraying is completed, determine whether secondary dust settling is to be performed according to the current dust concentration, and if it is determined that secondary dust settling is to be performed, calculate a secondary dust-settling duration according to the current dust concentration and a pre-set concentration standard value, and perform secondary dust settling.

[0048] It can be understood that the dust-settling control method and system based on building construction provided by the present application have the same beneficial effects, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0049] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Moreover, the same reference numerals are used throughout the same figures. In the drawings:

[0050] Figure 1 a flow chart of the dust-settling control method based on building construction provided by the embodiment of the present application;

[0051] Figure 2 a functional block diagram of the dust-settling control system based on building construction provided by the embodiment of the present application. DETAILED DESCRIPTION

[0052] Exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0053] In some embodiments of the present application, referring to Figure 1 The embodiment provides a dust-settling control method based on building construction, which comprises the following steps:

[0054] S100, collecting dust concentration, environmental data and operation data of a construction site; wherein the environmental data comprises environmental humidity, environmental temperature and environmental wind speed, and the operation data comprises construction equipment operation duration and construction equipment quantity;

[0055] S200, making a first judgment on whether to carry out dust reduction according to the dust concentration, making a second judgment on whether to carry out dust reduction according to the environmental humidity and the environmental wind speed, and making a dust reduction decision according to the judgment results of the first judgment and the second judgment;

[0056] S300, if the dust reduction decision is to carry out dust reduction, calculating a dust concentration change value in a preset time length, and obtaining a spray time length initial value of a dust reduction spray device according to the dust concentration change value and the environmental temperature;

[0057] S400, obtaining a work influence coefficient based on the construction equipment work time length and the construction equipment quantity, judging whether to correct the spray time length initial value according to the work influence coefficient, and if it is judged to correct, correcting the spray time length initial value according to the work influence coefficient and historical data;

[0058] S500, obtaining a current dust concentration after spraying is completed, judging whether to carry out secondary dust reduction according to the current dust concentration, and if it is judged to carry out secondary dust reduction, calculating a secondary dust reduction time length according to the current dust concentration and a pre-set concentration standard value, and carrying out secondary dust reduction.

[0059] It can be understood that in the data collection link, the dust concentration, environmental data and work data are comprehensively collected, the construction equipment work time length and quantity are taken into account, compared with the traditional single dust concentration monitoring method, the actual situation of the construction site can be more comprehensively mastered, and the internal relationship between the construction activity intensity and the dust generation is excavated, laying a solid foundation for subsequent precise control. In the judgment and decision mechanism, a hierarchical decision mode combining first and second judgments is adopted. First, it is preliminarily judged whether dust reduction is needed according to the dust concentration, and then secondary confirmation is made in combination with the environmental humidity and the wind speed. This double judgment method avoids misjudgment caused by a single factor, effectively improving the accuracy and reliability of the dust reduction decision. For example, in the case of high humidity but slightly exceeding the dust concentration standard, the secondary judgment can avoid unnecessary dust reduction operation, realizing the rational use of resources. In the process of determining and correcting the spray time length, the spray time length initial value is determined according to the dust concentration change value and the environmental temperature, and then the correction is made through the work influence coefficient combined with historical data, fully considering the dynamically changing environment and construction conditions. Not only can the spray time length be adjusted in time according to the current dust trend, but also the past experience can be used to optimize the control strategy, so that the dust reduction operation is more scientific and reasonable, improving the dust reduction efficiency while reducing the waste of water resources and the like. In the secondary dust reduction link, the dust concentration after spraying is monitored and processed, to ensure that the dust reduction effect reaches the expected standard, forming a complete closed-loop control system, and realizing efficient and precise control of the construction dust.

[0060] In some embodiments of the present application, when the first determination of whether to carry out dust suppression is made according to the dust concentration, and the second determination of whether to carry out dust suppression is made according to the environmental humidity and the environmental wind speed, the method comprises:

[0061] setting a dust concentration threshold value, if the dust concentration is greater than the dust concentration threshold value, the first determination result is that dust suppression is needed; otherwise, the first determination result is that dust suppression is not needed;

[0062] setting an environmental humidity minimum value and an environmental wind speed threshold value, if the environmental wind speed is greater than or equal to the environmental wind speed threshold value, and the environmental humidity is less than or equal to the environmental humidity minimum value, the second determination result is that dust suppression is needed; otherwise, the second determination result is that dust suppression is not needed.

[0063] In some embodiments of the present application, when the dust suppression decision is made according to the determination results of the first determination and the second determination, the method comprises:

[0064] if the first determination result is that dust suppression is not needed, and the second determination result is that dust suppression is not needed, the dust suppression decision is that dust suppression is not needed;

[0065] otherwise, the dust suppression decision is that dust suppression is needed.

[0066] It can be understood that, in the dust suppression decision-making process of building construction, the first determination takes the dust concentration threshold value as the basis, which can quickly identify the basic condition of dust pollution, and ensure that dust suppression measures are started in time when the dust concentration exceeds the standard, so as to avoid further spread of dust pollution. The second determination introduces two key environmental parameters, environmental humidity and wind speed, and fully considers the influence of meteorological conditions on dust diffusion and dust suppression effect. When the environmental wind speed is large and the humidity is low, even if the dust concentration does not exceed the standard, dust suppression may be started in advance due to the characteristics of easy diffusion of dust, effectively preventing dust pollution; on the contrary, under the meteorological conditions that are not conducive to dust diffusion, even if the dust concentration slightly exceeds the threshold value, dust suppression can be temporarily not started, reducing unnecessary resource consumption. By integrating the results of the two determinations, the dust suppression decision-making is dynamic and accurate, which not only ensures the dust suppression effect, but also improves the resource utilization efficiency. Compared with the dust suppression decision-making method based on a single determination, the method can better adapt to the complex and changeable construction site environment.

[0067] For example, the dust concentration of the construction site is monitored to be 75 μg / m³, and the preset dust concentration threshold is 80 μg / m³. The first determination result is that dust reduction is not needed. However, at this time, the environmental wind speed reaches 6 m / s (the environmental wind speed threshold is 5 m / s), and the environmental humidity is only 30% (the minimum environmental humidity is 40%). The conditions for dust reduction in the second determination are met. According to the dust reduction decision rule, the second determination result is that dust reduction is needed. After comprehensively considering the two determinations, it is finally determined that dust reduction operation is performed. The spray dust reduction device in the corresponding area is immediately started, effectively inhibiting the diffusion of dust caused by strong wind and low humidity, avoiding the possible environmental protection complaints and construction delays caused by the aggravation of dust pollution, ensuring the construction progress, and achieving good dust reduction effect and environmental protection benefits.

[0068] In some embodiments of the present application, the initial value of the spray duration of the dust reduction spray device is obtained according to the dust concentration change value and the environmental temperature, comprising:

[0069] According to the dust concentration, the dust concentration change value in the preset duration is calculated;

[0070] The concentration change limit value and the temperature limit value are set. If the dust concentration change value is greater than or equal to the concentration change limit value, and the environmental temperature is greater than or equal to the temperature limit value, the initial value of the spray duration is the first duration;

[0071] If the dust concentration change value is greater than or equal to the concentration change limit value, and the environmental temperature is less than the temperature limit value, the initial value of the spray duration is the second duration;

[0072] If the dust concentration change value is less than the concentration change limit value, and the environmental temperature is greater than or equal to the temperature limit value, the initial value of the spray duration is the second duration;

[0073] If the dust concentration change value is less than the concentration change limit value, and the environmental temperature is less than the temperature limit value, the initial value of the spray duration is the third duration;

[0074] The first duration is greater than the second duration, and the second duration is greater than the third duration.

[0075] It can be understood that, in the process of dust reduction in construction, the dust concentration change value reflects the dynamic trend of dust generation and diffusion, and the environmental temperature affects the evaporation speed of water mist and the dust particle settlement efficiency. Combining the two can more accurately adapt to the needs of different construction scenes. When the dust concentration changes sharply and the temperature is high, prolonging the spraying time can enhance the dust reduction effect; in the case of gentle dust concentration change and low temperature, shortening the spraying time can not only achieve the purpose of dust reduction, but also avoid waste of water resources and energy. Compared with the method of setting the spraying time according to the dust concentration alone, the method effectively improves the accuracy and resource utilization efficiency of dust reduction operation, and realizes the balance between dust reduction effect and cost control. For example, it is monitored that the dust concentration in the construction site has rapidly risen from 80 μg / m³ to 120 μg / m³ in the past 30 minutes, and the dust concentration change value exceeds the preset concentration change limit value (20 μg / m³). At this time, the environmental temperature reaches 35℃, which is higher than the temperature limit value (30℃). The initial value of the spraying time is determined as the first time, i.e. 30 minutes, and the dust reduction spraying device is started to carry out high-intensity dust reduction operation. Continuous spraying makes the water mist fully combine with the dust particles, accelerates the settlement of the dust particles, and effectively prevents the further diffusion of the dust. For another example, in the same monitoring period, the dust concentration only rises from 60 μg / m³ to 65 μg / m³, and the concentration change value is less than the concentration change limit value, and the environmental temperature is 20℃, which is lower than the temperature limit value. It is determined that the initial value of the spraying time is the third time, i.e. 10 minutes, which greatly reduces the water resource consumption and equipment operation cost while ensuring the dust reduction effect.

[0076] In some embodiments of the present application, when the operation influence coefficient is obtained based on the operation time of the construction equipment and the number of construction equipment, it includes:

[0077] The dust influence coefficient of each type of construction equipment is preset within a fixed time, and the value range of the dust influence coefficient is (0, 1);

[0078] The operation influence coefficient of each type of construction equipment is calculated respectively; wherein the operation influence coefficient of each type of construction equipment = dust influence coefficient × (operation time of construction equipment / fixed time) × number of this type of construction equipment;

[0079] The operation influence coefficients of each type of construction equipment are weighted and summed to obtain the operation influence coefficient.

[0080] In some embodiments of the present application, when the operation influence coefficient is obtained based on the operation time of the construction equipment and the number of construction equipment, it includes:

[0081] The maximum influence coefficient is set, and if the operation influence coefficient is greater than the maximum influence coefficient, it is determined that the initial value of the spraying time needs to be corrected;

[0082] If the operation influence coefficient is less than or equal to the maximum influence coefficient, it is determined that the spray duration initial value does not need to be corrected.

[0083] In some embodiments of the present application, when the spray duration initial value is corrected according to the operation influence coefficient and historical data, the correction includes:

[0084] The historical correction coefficient corresponding to the operation influence coefficient in the historical data is obtained, and the spray duration initial value is adjusted by using the historical correction coefficient as a current correction coefficient to obtain a corrected spray duration.

[0085] The corrected spray duration is a product of the spray duration initial value and the current correction coefficient.

[0086] It can be understood that the dust influence coefficient is set for each construction equipment in advance, which can reflect the dust generation characteristics of different equipment (for example, the dust influence of a soil excavator is usually greater than that of a concrete mixer), and the calculation of the operation influence coefficient integrates dynamic parameters such as the operation time and the number of equipment, which can realize real-time sensing of the comprehensive influence of construction activity intensity on dust. When the operation influence coefficient exceeds the threshold value, the spray duration initial value is adjusted based on the correction coefficient in the historical data, which essentially builds an "data-driven" optimization mechanism. By learning the optimal dust reduction strategy in the past similar operation scenarios, the lag of dust control or waste of resources caused by concentrated operation of construction equipment is avoided. This combination of equipment characteristics, operation intensity, and historical experience breaks the traditional dust reduction mode of static control relying on real-time dust concentration, and realizes the technical upgrade from "passive response" to "active prediction". For example, 2 soil excavators (fixed time 8 hours, dust influence coefficient 0.9) and 3 concrete mixers (fixed time 8 hours, dust influence coefficient 0.5) are running on site at the same time. The excavators have been continuously operated for 4 hours, and the mixers have been operated for 2 hours. The calculation can obtain: the operation influence coefficient of the excavator = 0.9 x (4 ÷ 8) x 2 = 0.9; the operation influence coefficient of the mixer = 0.5 x (2 ÷ 8) x 3 = 0.375; the operation influence coefficient = 0.9 + 0.375 = 1.275 (assuming that the weighting coefficient is 1). If the maximum influence coefficient is 1.0, it is determined that the spray duration initial value needs to be corrected. By querying the historical data, when the operation influence coefficient is 1.275, the corresponding historical correction coefficient is 1.3, and the original spray duration initial value is 20 minutes, then the corrected spray duration = 20 x 1.3 = 26 minutes.

[0087] In some embodiments of the present application, when the current dust concentration after the spray is completed is obtained, and whether secondary dust reduction is performed is determined according to the current dust concentration, the determination includes:

[0088] a concentration standard value is set, and if the current dust concentration is greater than the concentration standard value, it is determined that secondary dust setting is needed;

[0089] If the current dust concentration is less than or equal to the concentration standard value, it is determined that secondary dust setting is not needed.

[0090] In some embodiments of the present application, the secondary dust setting time is calculated according to the current dust concentration and the pre-set concentration standard value, and the secondary dust setting includes:

[0091] The concentration difference between the current dust concentration and the concentration standard value is calculated, and the corresponding historical secondary dust setting time is searched in the historical data according to the concentration difference;

[0092] The historical secondary dust setting time is used as the current secondary dust setting time for dust setting.

[0093] It can be understood that the secondary dust setting mechanism constructs a closed-loop optimization system for dust setting control through the mode of "concentration threshold judgment + historical data matching", which significantly improves the accuracy and efficiency of dust control. Specifically, the concentration standard value is used as the trigger condition for secondary dust setting, which can ensure that the air quality in the construction area is always maintained within the environmental protection requirements, avoiding the problem of dust rebound caused by incomplete primary dust setting; and the strategy of matching the historical secondary dust setting time based on the concentration difference is essentially to convert the past engineering experience into a data-driven decision model, which can quickly determine the optimal dust setting time without real-time complex calculation, thus shortening the system response time and avoiding the waste of water resources and energy caused by blindly prolonging the spray time. This closed-loop control mode of "monitoring-feedback-correction" realizes continuous and accurate control of dust pollution compared with the traditional method of relying only on single dust setting, and improves the intelligent level and resource utilization efficiency of dust setting operation through the reuse of historical data. For example, 20 minutes after the spray dust setting device is started for the first time, the current dust concentration is monitored to be 65 μg / m³, and the pre-set concentration standard value is 50 μg / m³, the concentration difference is 15 μg / m³. Immediately search the historical database to find that when the concentration difference is 10-20 μg / m³, the average value of the corresponding historical secondary dust setting time is 12 minutes. Therefore, the current secondary dust setting time is determined to be 12 minutes and the spray device is started. After the secondary dust setting is completed, the dust concentration is monitored again to be 48 μg / m³, reaching the environmental protection standard.

[0094] On the other hand, referring to Figure 2 The present application also provides a dust setting control system based on building construction for applying the above-mentioned dust setting control method based on building construction, which includes:

[0095] The collection module is configured to collect dust concentration, environmental data and operation data of the construction site; wherein the environmental data includes environmental humidity, environmental temperature and environmental wind speed, and the operation data includes construction equipment operation time and construction equipment quantity;

[0096] The dust fall judgment module is configured to make a first judgment on whether to carry out dust fall according to the dust concentration, make a second judgment on whether to carry out dust fall according to the environmental humidity and the environmental wind speed, and make a dust fall decision according to the judgment results of the first judgment and the second judgment;

[0097] The time initial determination module is configured to, if the dust fall decision is to carry out dust fall, calculate a dust concentration change value within a preset time, and obtain a spray time initial value of a dust fall spray device according to the dust concentration change value and the environmental temperature;

[0098] The time correction module is configured to obtain an operation influence coefficient based on the construction equipment operation time and the construction equipment quantity, judge whether to correct the spray time initial value according to the operation influence coefficient, and if it is judged to correct the spray time initial value, correct the spray time initial value according to the operation influence coefficient and historical data;

[0099] The secondary dust fall module is configured to obtain a current dust concentration after spray is completed, judge whether to carry out secondary dust fall according to the current dust concentration, and if it is judged to carry out secondary dust fall, calculate a secondary dust fall time according to the current dust concentration and a pre-set concentration standard value, and carry out secondary dust fall.

[0100] It can be understood that the collection module collects data in multiple dimensions in real time, provides a comprehensive and accurate information basis for system decision-making, and ensures accurate grasp of the construction site conditions; the dust fall judgment module improves the accuracy and scientificity of dust fall decision-making through hierarchical judgment and logical decision-making, avoiding misjudgment and resource waste; the time initial determination module determines the spray time initial value in combination with the dust concentration change and the environmental temperature, making the dust fall operation more targeted; the time correction module considers the operation influence of construction equipment and corrects the time in combination with historical data, realizing dynamic optimization and enhancing the adaptability of the system to complex construction scenes; the secondary dust fall module ensures that the dust fall effect meets the standard through closed-loop control. The modules have clear division of labor and close cooperation, forming a complete closed loop from data collection, decision-making to execution optimization. Compared with traditional dust fall methods, the dust fall efficiency and resource utilization rate are significantly improved, and the environmental protection requirements of the construction environment are guaranteed.

[0101] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0102] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0103] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0104] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A dust control method based on building construction, characterized in that: include: Collect dust concentration, environmental data, and operational data at the construction site; wherein the environmental data includes ambient humidity, ambient temperature, and ambient wind speed, and the operational data includes the operating hours and number of construction equipment; Performing a primary judgment on whether to perform dust reduction based on the dust concentration, performing a secondary judgment on whether to perform dust reduction based on the ambient humidity and ambient wind speed, and making a dust reduction decision based on the judgment results of the primary and secondary judgments; If the dust reduction decision is that dust reduction is required, the dust concentration change value within the preset time period is calculated, and the initial value of the spraying time of the dust reduction spray device is obtained according to the dust concentration change value and the ambient temperature; The operation impact coefficient is obtained based on the operation time and number of construction equipment: a dust impact coefficient is pre-set for each type of construction equipment within a fixed time, and the value range of the dust impact coefficient is (0, 1); the operation impact coefficient of each type of construction equipment is calculated separately; where the operation impact coefficient of each type of construction equipment = dust impact coefficient (Construction equipment operating time / fixed time) The number of such construction equipment; the weighted sum of the operation impact coefficients of each type of construction equipment to obtain the operation impact coefficient; Determine whether to correct the initial value of the spray duration according to the operation influence coefficient: set a maximum value of the influence coefficient. If the operation influence coefficient is greater than the maximum value of the influence coefficient, it is determined that the initial value of the spray duration needs to be corrected; if the operation influence coefficient is less than or equal to the maximum value of the influence coefficient, it is determined that the initial value of the spray duration does not need to be corrected. If correction is determined to be necessary, the initial value of the spray duration is corrected according to the operation influence coefficient and historical data: a historical correction coefficient corresponding to the operation influence coefficient in the historical data is obtained, and the initial value of the spray duration is adjusted using the historical correction coefficient as the current correction coefficient to obtain a corrected spray duration; the corrected spray duration is the product of the initial value of the spray duration and the current correction coefficient; Obtain the current dust concentration after the spraying is completed, and determine whether to perform secondary dust reduction based on the current dust concentration. If it is determined that secondary dust reduction is required, calculate the secondary dust reduction duration based on the current dust concentration and the preset concentration standard value, and perform secondary dust reduction.

2. The dust control method based on construction according to claim 1, characterized in that: The first determination of whether to perform dust reduction is performed based on the dust concentration, and the second determination of whether to perform dust reduction is performed based on the ambient humidity and ambient wind speed include: Set a dust concentration threshold. If the dust concentration is greater than the dust concentration threshold, a judgment result is that dust reduction is required; otherwise, a judgment result is that dust reduction is not required. Set the minimum ambient humidity and the ambient wind speed threshold. If the ambient wind speed is greater than or equal to the ambient wind speed threshold, and the ambient humidity is less than or equal to the minimum ambient humidity, the secondary judgment result is that dust reduction is required; otherwise, the secondary judgment result is that dust reduction is not required.

3. The dust control method based on construction according to claim 2, characterized in that: The dust suppression decision is made according to the results of the first and second judgments, including: If the first judgment result is that dust suppression is not required, and the second judgment result is that dust suppression is not required, the dust suppression decision is that dust suppression is not required; Otherwise, the dust suppression decision is that dust suppression is required.

4. The dust control method based on construction according to claim 1, characterized in that: The method of obtaining the initial value of the spray duration of the dust suppression spray device according to the dust concentration change value and the ambient temperature includes: Calculating a dust concentration change value within a preset time period based on the dust concentration; Set a concentration change limit value and a temperature limit value. If the dust concentration change value is greater than or equal to the concentration change limit value, and the ambient temperature is greater than or equal to the temperature limit value, the initial value of the spray duration is the first duration. If the dust concentration change value is greater than or equal to the concentration change limit value, and the ambient temperature is less than the temperature limit value, the initial value of the spray duration is the second duration; If the dust concentration change value is less than the concentration change limit value, and the ambient temperature is greater than or equal to the temperature limit value, the initial value of the spray duration is the second duration; If the dust concentration change value is less than the concentration change limit value, and the ambient temperature is less than the temperature limit value, the initial value of the spray duration is the third duration; The first duration is greater than the second duration, and the second duration is greater than the third duration.

5. The dust control method based on construction according to claim 1, characterized in that: The obtaining of the current dust concentration after the spraying is completed and determining whether to perform secondary dust reduction according to the current dust concentration include: Set a concentration standard value, and if the current dust concentration is greater than the concentration standard value, determine that secondary dust reduction is needed; If the current dust concentration is less than or equal to the concentration standard value, it is determined that secondary dust reduction is not necessary.

6. The dust control method based on construction according to claim 5, characterized in that: The calculating of the secondary dust reduction duration according to the current dust concentration and the preset concentration standard value, and performing the secondary dust reduction, includes: Calculate the concentration difference between the current dust concentration and the standard concentration value, and search the historical data for the corresponding secondary dustfall duration based on the concentration difference; The historical secondary dustfall duration is used as the current secondary dustfall duration for dust reduction.

7. A dust control system based on construction, used to apply the dust control method based on construction according to any one of claims 1 to 6, characterized in that: include: A collection module is configured to collect dust concentration, environmental data, and operation data at the construction site; wherein the environmental data includes environmental humidity, ambient temperature, and ambient wind speed; and the operation data includes operating hours and number of construction equipment; a dust fall judgment module configured to make a primary judgment on whether to perform dust fall based on the dust concentration, a secondary judgment on whether to perform dust fall based on the ambient humidity and ambient wind speed, and make a dust fall decision based on the results of the primary and secondary judgments; a duration initialization module configured to calculate a dust concentration change value within a preset duration if the dust reduction decision is that dust reduction is required, and obtain an initial value of the spray duration of the dust reduction spray device based on the dust concentration change value and the ambient temperature; a duration correction module configured to obtain an operation influence coefficient based on the operation duration of the construction equipment and the number of construction equipment, determine whether to correct the initial value of the spray duration according to the operation influence coefficient, and if correction is required, correct the initial value of the spray duration according to the operation influence coefficient and historical data; The secondary dust reduction module is configured to obtain the current dust concentration after the spraying is completed, and determine whether to perform secondary dust reduction based on the current dust concentration. If it is determined that secondary dust reduction is required, the secondary dust reduction duration is calculated based on the current dust concentration and the pre-set concentration standard value, and secondary dust reduction is performed.

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