Dust suppression system in earthwork excavation and transportation process

Abstract

The present application relates to dust suppression technology field, especially in earthwork excavation and transportation process in dust suppression system, including: data perception module, it is used to obtain the soil moisture content in target area and several construction device construction area image sequence;Dust analysis module, it is used to determine the corresponding dust characteristic variation degree based on each construction device construction area image sequence, to determine the dust interference category of each construction device;Spray analysis module, it is used to determine whether there is device coupling interference based on the dust interference category and distribution of each construction device, if there is device coupling interference, then determine several key construction devices based on the dust area change of each construction device, to determine the spray working mode;Spray control module, it is used to control the working state of corresponding spray device.The present application can improve the dust suppression efficiency and effect.

Description

Technical Field

[0001] This invention relates to the field of dust suppression technology, and in particular to a dust suppression system for earthwork excavation and transportation. Background Technology

[0002] Currently, earthwork excavation and transportation construction sites generally adopt a multi-machine parallel operation mode, including excavators digging soil, dump trucks transporting soil, and on-site leveling and compaction, with multiple types of construction equipment operating simultaneously and cross-operating. This results in numerous dust sources on-site, dynamically changing locations, and significant cumulative dust effects. Existing dust suppression systems mostly rely on traditional single-point dust sensor monitoring, fixed-point spray system with timed start and stop, and a uniform spraying strategy covering the entire area. The overall control logic is rudimentary and has obvious technical shortcomings.

[0003] First, traditional dust monitoring methods are simplistic, relying solely on dust concentration values ​​to determine dust levels. They fail to identify the varying dust generation intensity of different construction equipment. The dynamic characteristics of dust generation vary significantly across different equipment and operating conditions, resulting in a lack of differentiated dust suppression control and leading to uniform spraying, wasted resources, or insufficient dust suppression. Second, existing technologies neglect the coupling interference between multiple construction devices. During intensive multi-machine operations, the dust generated by each device can overlap and spread, forming localized high-intensity composite dust zones. The dust concentration and diffusion range of these zones are far greater than the effect of a single device generating dust individually. Existing dust suppression systems cannot identify these coupled dust scenarios, resulting in poor dust suppression effectiveness.

[0004] Chinese Patent Publication No. CN120437764A discloses a dust control method and system based on construction site. The method includes: collecting dust concentration, environmental data, and operational data at the construction site; making dust control decisions based on the results of a first and second judgment; calculating the dust concentration change value within a preset time period, and obtaining an initial value of the spraying time of the dust control spray device based on the dust concentration change value and the ambient temperature; correcting the initial value of the spraying time based on the operational impact coefficient and historical data; obtaining the current dust concentration after spraying is completed, determining whether to carry out secondary dust control based on the current dust concentration, and if it is determined that secondary dust control is required, calculating the secondary dust control time based on the current dust concentration and a preset concentration standard value, and carrying out secondary dust control.

[0005] The existing technology has the following problems: it can not determine the dust spread trend and cannot distinguish the local dust intensity by triggering dust suppression decisions based solely on the dust concentration at the construction site. Large-scale uniform dust suppression within the construction site is not efficient and it is difficult to guarantee the dust suppression effect, which also leads to waste of resources. Summary of the Invention

[0006] Therefore, the present invention provides a dust suppression system for earthwork excavation and transportation, which overcomes the problems of low dust suppression efficiency and difficulty in guaranteeing dust suppression effect in the existing technology of large-scale uniform dust suppression within construction sites.

[0007] To achieve the above objectives, the present invention provides a dust suppression system during earthwork excavation and transportation, comprising: The data sensing module is used to acquire the soil moisture content within the target area and the image sequence of the construction area of ​​several construction devices. The dust analysis module is used to determine the corresponding dust feature variation degree based on the construction area image sequence of each construction device, so as to determine the dust interference category of each construction device, wherein the dust interference category includes strong interference category and weak interference category; The spray analysis module is used to determine whether there is inter-device coupling interference based on the dust interference category and distribution of each construction device. If inter-device coupling interference exists, it identifies several key construction devices based on the dust area changes of each construction device, and determines the spray operation mode based on the dust diffusion range corresponding to each key construction device. This includes single spray device roving operation and multi-spray device collaborative operation. The single spray device roving operation applies atomized spraying action to the first dust area through a single spray device, and the multi-spray device collaborative operation applies atomized spraying action to the second dust area through multiple spray devices. The sprinkler control module is used to control the working state of the corresponding sprinkler device based on the sprinkler working mode, and to determine whether to adjust the working state of the sprinkler device based on the soil moisture content in the target area.

[0008] Furthermore, the dust analysis module includes: The image analysis unit is used to determine the rate of change of the dust area and the rate of change of the dust distribution corresponding to each construction device based on the image sequence of the construction area of ​​each construction device, so as to determine the degree of change of dust characteristics corresponding to each construction device. The category analysis unit is used to determine the dust interference category of each construction device based on the degree of change of dust characteristics corresponding to each construction device.

[0009] Furthermore, the image analysis unit determines the corresponding dust area based on any construction area image in the construction area image sequence of any of the construction devices, determines the dust area change rate based on the dust area change of each construction area image, and determines the dust area distribution change rate based on the dust area center movement of each construction area image.

[0010] Furthermore, the spray analysis module includes: An interference analysis unit is used to determine whether there is inter-device coupling interference based on the dust interference type and distribution of each construction device. The spray analysis unit is used to determine the dust distribution tendency of each construction device based on the determination result of the existence of coupling interference between devices and the dust area change of each construction device, so as to identify several key construction devices, and determine the corresponding dust diffusion range based on the distribution of each key construction device and the dust area, so as to determine the spray operation mode.

[0011] Furthermore, the spray control module includes: A spray unit includes several spray devices, which are used to apply atomized spraying action. The working state of a single spray device includes a normal working state and a stopped working state. A spray control unit, which controls the working state of the corresponding spray device based on the spray working mode; The spray adjustment unit is used to determine whether to adjust the working status of the spray device based on the soil moisture content in the target area.

[0012] Furthermore, the category analysis unit determines the dust interference category of any of the construction devices to be a strong interference category based on a first determination condition, and determines the dust interference category of any construction device to be a weak interference category based on a second determination condition, wherein... The first determination condition is that the change in the dust characteristics of the construction device is greater than a preset change. The second determination condition is that the dust characteristic variation of the construction device is less than or equal to the preset variation.

[0013] Furthermore, the interference analysis unit determines the existence of inter-device coupling interference based on a third determination condition, wherein, The third determination condition is that the distance between any construction device of any strong interference category and any other construction device is less than a preset distance.

[0014] Furthermore, the spray analysis unit determines the dust distribution tendency of the construction device based on the dust area change of any of the construction devices, and determines several clustering device groups based on the dust distribution tendency of each construction device to identify several key construction devices, wherein the clustering device group includes at least two construction devices.

[0015] Furthermore, the spray analysis unit determines the dust diffusion range based on the distribution of each key construction device and the dust-generating area, and determines the spray operation mode based on the total area of ​​the dust diffusion range.

[0016] Furthermore, the spray analysis module determines the spray operation mode as single spray device cyclic operation based on the determination result that there is no inter-device coupling interference.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The technical solution of the present invention identifies the degree of change of dust characteristics corresponding to the construction area of ​​each construction device through the image sequence of the construction area of ​​each construction device. It can accurately identify the dust situation generated by each construction equipment in the target area during excavation and transportation, accurately distinguish between the dust categories of construction devices with strong interference and weak interference, and determine whether there is coupling interference between devices in combination with the distribution of each construction device. It can also achieve accurate source tracing of complex dust scenarios, and match the spraying operation mode according to the difference of dust diffusion range. For small-scale and scattered first dust areas, a single spray device is used for cyclic operation to ensure the dust suppression effect while reducing resource consumption. For large-scale and high-intensity second dust areas formed by coupling interference of multiple devices, a multi-spray device collaborative working mode is activated to achieve multi-angle, full-coverage atomized dust suppression, which can improve the dust suppression efficiency and effect.

[0018] Furthermore, the dust analysis module determines the degree of change in dust characteristics by measuring the rate of change in the area of ​​dust-generating zones corresponding to each construction device and the rate of change in the distribution of dust-generating zones. It can accurately reflect the dynamic dust generation intensity and diffusion of each construction device from two dimensions: the growth rate of dust diffusion scale and the evolution rate of spatial distribution. This allows for the classification of each construction device, avoiding uniform control of each device and further improving the accuracy of subsequent differentiated spraying strategy selection, thereby improving the efficiency and effectiveness of dust suppression.

[0019] Furthermore, the spray analysis module determines whether there is inter-device coupling interference by analyzing the dust interference categories and distribution of each construction device. It accurately identifies the coupling interference conditions of dust superposition and linkage under the collaborative operation of multiple construction devices. At the same time, in the case of inter-device coupling interference, it analyzes the changes in the dust area of ​​each construction device, which can determine the dust distribution trend of each construction device. This allows for the screening of the main devices affecting dust diffusion. The determined dust diffusion range can reflect the key dust suppression areas that require targeted dust suppression. This enables adaptive matching of the spray operation mode, avoiding blind spraying and further improving the efficiency and effectiveness of dust suppression.

[0020] Furthermore, the spray control module dynamically controls the working status of each spray device in response to the determined spray working mode, and determines whether to adjust the working status of the spray device according to the soil moisture content in the target area. This can improve dust suppression efficiency, while avoiding excessive spraying that would cause the soil to become too wet, thereby affecting construction efficiency and further improving the dust suppression effect. Attached Figure Description

[0021] Figure 1 This is a structural block diagram of a dust suppression system during earthwork excavation and transportation according to an embodiment of the present invention. Figure 2 This is a structural block diagram of the dust analysis module according to an embodiment of the present invention; Figure 3 This is a structural block diagram of the spray analysis module according to an embodiment of the present invention; Figure 4 This is a structural block diagram of the spray control module according to an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] Please see Figure 1 The diagram shown is a structural block diagram of a dust suppression system during earthwork excavation and transportation according to an embodiment of the present invention. The dust suppression system provided in this embodiment of the present invention includes: The data sensing module is used to acquire the soil moisture content within the target area and the image sequence of the construction area of ​​several construction devices. In this embodiment, the data sensing module includes a soil moisture content acquisition unit and an image acquisition unit. The soil moisture content acquisition unit is used to acquire the soil moisture content at various locations within the target area, and the image acquisition unit is used to acquire image sequences of the construction areas of each construction device. The target area includes several construction devices, and the construction types of each construction device can be the same or different. For example, the construction device can be an excavator, a dump truck, a bulldozer, etc. Each construction device has a corresponding construction area. The actual implementers can set the specific placement positions of the soil moisture content acquisition unit and the image acquisition unit based on the actual construction situation.

[0025] It is understandable that any construction device acquiring a sequence of images of the construction area during construction includes several images of the construction area, arranged in chronological order. In practical applications, image preprocessing can be performed on each construction area image, such as noise reduction, contrast enhancement, and geometric correction. This can remove sensor noise and transmission noise from the image, improve the contrast between the dusty area and the background area, and facilitate the subsequent extraction of dusty area features.

[0026] The dust analysis module, which is connected to the data sensing module, is used to determine the corresponding dust feature variation degree based on the construction area image sequence of each construction device, so as to determine the dust interference category of each construction device. The dust interference category includes strong interference category and weak interference category. Please see Figure 2 The diagram shown is a structural block diagram of the dust analysis module according to an embodiment of the present invention; specifically, the dust analysis module includes: The image analysis unit is used to determine the rate of change of the dust area and the rate of change of the dust distribution corresponding to each construction device based on the image sequence of the construction area of ​​each construction device, so as to determine the degree of change of dust characteristics corresponding to each construction device. Specifically, the image analysis unit determines the corresponding dust area based on any construction area image in the construction area image sequence of any of the construction devices, determines the dust area change rate based on the dust area change of each construction area image, and determines the dust area distribution change rate based on the center movement of the dust area corresponding to each construction area image.

[0027] In this embodiment, for any construction area image of any construction device, a semantic segmentation network based on deep learning can be used to segment the dust area. For example, semantic segmentation networks such as U-Net, DeepLabv3+, or SegNet can be used. At least 5,000 dust images of the construction site are collected in advance, and professional personnel annotate the dust areas in the images at the pixel level. The images are divided into training, validation, and test sets in a 7:2:1 ratio for model training. The preprocessed construction area image is input into the trained segmentation model, and the model outputs a probability map of the same size as the input image. The value of each pixel represents the probability that the pixel belongs to the dust area. The probability map is binarized with a probability threshold. Pixels with a probability greater than or equal to the probability threshold are marked as dust areas, and pixels with a probability less than the probability threshold are marked as non-dust areas.

[0028] It is understandable that, for any construction device, the rate of change of the dust area can characterize how quickly the dust area changes during the construction process. The greater the rate of change of the dust area, the faster the dust area increases during the construction process. The rate of change of the area can be calculated based on the sliding window smoothing method. Preferably, the difference between the area of ​​the second sliding window and the area of ​​the first sliding window is determined as the area difference, and the ratio of the area difference to the first time difference is determined as the rate of change of the dust area. The first sliding window is the earlier time window, which includes m consecutive images. The average dust area in each construction area image within the first sliding window is calculated as the area of ​​the first sliding window. The second sliding window is the later time window, which has the same number of frames as the first sliding window, and both include m consecutive images. There is a certain time interval between the two windows, namely the first time difference. The average dust area in each construction area image within the second sliding window is calculated as the area of ​​the second sliding window.

[0029] It is understandable that, for any construction device, the rate of change of dust area distribution can characterize the speed at which the dust area moves during the construction process. The greater the rate of change of dust area distribution, the greater the speed at which the dust area moves during the construction process. This can be determined based on the maximum speed of movement of the dust area center. Preferably, for any dust area in a construction area image, the coordinates of the dust area center can be calculated based on the average coordinates of all pixels within the dust area to obtain a dust area center coordinate sequence. The ratio of the displacement to the time difference of the dust area center between adjacent frames is calculated to determine the instantaneous speed of movement of the dust area corresponding to the adjacent frame. The instantaneous speed of movement of the dust area corresponding to each adjacent frame in the construction area image sequence is calculated, and the maximum instantaneous speed is determined as the rate of change of dust area distribution.

[0030] It is understandable that, for any construction device, the dust characteristic variability is used to characterize the changes in the dust area generated by the construction device during construction. The larger the dust characteristic variability, the faster the corresponding dust area increases and the greater the movement speed. The dust characteristic variability is positively correlated with the rate of change of dust area and the rate of change of dust area distribution. Preferably, the rate of change of dust area and the rate of change of dust area distribution corresponding to each construction device are normalized to be mapped to between 0 and 1. For any construction device, the mean of the normalized rate of change of dust area and the rate of change of dust area distribution is determined as the dust characteristic variability of the construction device.

[0031] The category analysis unit, which is connected to the image analysis unit, is used to determine the dust interference category of each construction device based on the degree of change of dust characteristics corresponding to each construction device.

[0032] In this embodiment, for any construction device, the greater the degree of change in dust characteristics, the greater the probability of dust interference to other construction devices. In practical applications, a preset degree of change can be set for classification. The greater the preset degree of change, the higher the requirement for the probability of dust interference to other construction devices during construction.

[0033] Specifically, the category analysis unit determines that the dust interference category of any of the construction devices is a strong interference category based on a first determination condition, and determines that the dust interference category of any of the construction devices is a weak interference category based on a second determination condition, wherein... The first determination condition is that the change in the dust characteristics of the construction device is greater than a preset change. The second determination condition is that the dust characteristic variation of the construction device is less than or equal to the preset variation.

[0034] Specifically, the dust analysis module determines the degree of change in dust characteristics by measuring the rate of change in the area of ​​dust-generating zones corresponding to each construction device and the rate of change in the distribution of dust-generating zones. It can accurately reflect the dynamic dust generation intensity and diffusion of each construction device from two dimensions: the growth rate of dust diffusion scale and the evolution rate of spatial distribution. This allows for the classification of each construction device, avoiding uniform control of each device and further improving the accuracy of subsequent differentiated spraying strategy selection, thereby improving the efficiency and effectiveness of dust suppression.

[0035] The spray analysis module, which is connected to the dust analysis module and the data sensing module, is used to determine whether there is inter-device coupling interference based on the dust interference category and distribution of each construction device. If inter-device coupling interference exists, several key construction devices are identified based on the dust area changes of each construction device, and the spray operation mode is determined based on the dust diffusion range corresponding to each key construction device. This includes single spray device roving operation and multi-spray device collaborative operation. The single spray device roving operation applies atomized spraying action to the first dust area through a single spray device, and the multi-spray device collaborative operation applies atomized spraying action to the second dust area through multiple spray devices. Please see Figure 3 The diagram shown is a structural block diagram of the spray analysis module according to an embodiment of the present invention; specifically, the spray analysis module includes: An interference analysis unit is used to determine whether there is inter-device coupling interference based on the dust interference type and distribution of each construction device. Specifically, the interference analysis unit determines the existence of inter-device coupling interference based on a third determination condition, wherein, The third determination condition is that the distance between any construction device of any strong interference category and any other construction device is less than a preset distance.

[0036] In this embodiment, the preset distance is the core threshold for determining whether there is dust coupling interference between two construction devices. When the distance between any construction device of a strong interference category and any other construction device is less than the preset distance, it indicates that the dust generated by the construction device of the strong interference category may spread to the construction area of ​​the corresponding construction device, thereby causing coupling interference between devices. The larger the preset distance, the higher the requirement for the interference intensity of the construction device of the strong interference category to other construction devices. Practical implementers can set it by combining the target area size and construction needs, or by combining it with wind speed. Those skilled in the art know the significance of its setting, and it will not be elaborated here.

[0037] The spray analysis unit, connected to the interference analysis unit, is used to determine the dust distribution tendency of each construction device based on the determination result of the existence of coupling interference between devices and the dust area change of each construction device, so as to identify several key construction devices, and determine the corresponding dust diffusion range based on the distribution of each key construction device and the dust area, so as to determine the spray operation mode.

[0038] Specifically, the spray analysis unit determines the dust distribution tendency of the construction device based on the dust area change of any of the construction devices, and determines several clustering device groups based on the dust distribution tendency of each construction device to identify several key construction devices, wherein the clustering device group includes at least two construction devices.

[0039] Specifically, the spray analysis unit determines the dust diffusion range based on the distribution of each key construction device and the dust-generating area, and determines the spray operation mode based on the total area of ​​the dust diffusion range.

[0040] In this embodiment, for any construction device, based on the dust-generating areas determined by each construction area image in the construction area image sequence during the construction process, the center coordinates of each dust-generating area are extracted. The direction connecting the center of the dust-generating area in the first frame image to the center of the dust-generating area in the last frame image in the construction area image sequence is taken as the dust distribution tendency of the construction device. A rectangular coordinate system is constructed with due east as the positive direction of the horizontal axis, due north as the positive direction of the vertical axis, and the center of the target area as the origin. The angle between the dust distribution tendency of any construction device and the positive direction of the horizontal axis is taken as the corresponding dust distribution tilt angle. The difference in the dust distribution tilt angle between any two construction devices in the same cluster device group is less than 90°. The cluster device group with the most construction devices is determined as the key cluster device group. The two construction devices with the largest difference in dust distribution tilt angle in the key cluster device group are determined as the target construction devices. All construction devices within the angle range of less than 180° formed by the dust distribution tendency of the target construction devices are determined as key construction devices.

[0041] It is understandable that the dust diffusion range is used to characterize the area where each key construction device may be affected by dust coupling interference between devices. Preferably, the set of construction areas of each key construction device is determined as the first key area, the set of dust areas corresponding to the last frame construction area image of each key construction device is determined as the second key area, and the overlapping area of ​​the first key area and the second key area is determined as the dust diffusion range.

[0042] Understandably, the larger the dust spread range, the greater the demand for spraying area. An area threshold can be set, and the total area of ​​the dust spread range can be compared to this threshold. If the total area of ​​the dust spread range is greater than the threshold, multiple spray devices work together; if the total area of ​​the dust spread range is less than or equal to the threshold, a single spray device works in rotation. The overlapping area of ​​the dust areas corresponding to any key construction device and the last frame of the construction area image of other key construction devices is defined as the first dust area, and the area corresponding to the dust spread range is defined as the second dust area. The spray device corresponding to the single spray device's rotation is movable, moving within the first dust area to achieve spray coverage of the first dust area; in the multi-spray device collaborative operation, each spray device can be evenly distributed within the second dust area to ensure spray uniformity.

[0043] Specifically, the spray analysis module determines the spray operation mode as a single spray device working in rotation, based on the judgment result that there is no coupling interference between devices, and moves the spray within the target area.

[0044] Specifically, the spray analysis module determines whether there is inter-device coupling interference by analyzing the dust interference categories and distribution of each construction device. It accurately identifies the coupling interference conditions of dust superposition and linkage under the collaborative operation of multiple construction devices. At the same time, in the case of inter-device coupling interference, it analyzes the changes in the dust area of ​​each construction device, which can determine the dust distribution trend of each construction device. This allows for the screening of the main devices affecting dust diffusion. The determined dust diffusion range can reflect the key dust suppression areas that require targeted dust suppression. This enables adaptive matching of the spray operation mode, avoiding blind spraying and further improving the efficiency and effectiveness of dust suppression.

[0045] The sprinkler control module is connected to the sprinkler analysis module and the data sensing module respectively. It is used to control the working state of the corresponding sprinkler device based on the sprinkler working mode, and to determine whether to adjust the working state of the sprinkler device based on the soil moisture content in the target area.

[0046] Please see Figure 4 The diagram shown is a structural block diagram of the spray control module according to an embodiment of the present invention; specifically, the spray control module includes: A spray unit includes several spray devices, which are used to apply atomized spraying action. The working state of a single spray device includes a normal working state and a stopped working state. A spray control unit, which is connected to the spray unit, is used to control the working state of the corresponding spray device based on the spray working mode. The spray adjustment unit, which is connected to the spray unit, is used to determine whether to adjust the working status of the spray device based on the soil moisture content in the target area.

[0047] In this embodiment, the specific structure of the spraying device is not limited. Preferably, the spraying device includes at least a liquid storage tank, an atomizing nozzle, and a movable unit. The spraying device can move freely within the target area. When the spraying device is in normal working state, it can apply atomizing spraying action, and the operator can choose whether it can be moved. When the spraying device is in stop working state, it does not apply atomizing spraying action and cannot be moved.

[0048] Understandably, the system compares the maximum soil moisture content within the target area with the preset moisture content. If the maximum soil moisture content is greater than the preset moisture content, the sprinkler system is switched to a stopped state. If the maximum soil moisture content is less than or equal to the preset moisture content, the sprinkler system remains unchanged. Excessive soil moisture content can lead to problems such as decreased soil shear strength, increased soil weight, and increased soil cohesion during earthwork excavation and transportation, reducing construction efficiency. A lower preset moisture content requires higher moisture content within the target area. This setting can be based on construction needs or earthwork testing standards, or on the average soil moisture content during historical construction when sprinkler application was not performed.

[0049] Specifically, the spray control module dynamically controls the working status of each spray device in response to the determined spray working mode, and determines whether to adjust the working status of the spray device according to the soil moisture content in the target area. This can improve dust suppression efficiency, while avoiding excessive spraying that would cause the soil to become too wet, thereby affecting construction efficiency and further improving the dust suppression effect.

[0050] This invention identifies the degree of change in dust characteristics corresponding to the construction areas of each construction device by using image sequences of the construction areas of each construction device. This allows for accurate identification of the dust generated by each construction device during excavation and transportation within the target area. It precisely distinguishes between dust categories of construction devices with strong and weak interference. Based on this, and combined with the distribution of each construction device, it determines whether there is coupling interference between devices and achieves accurate source tracing of complex dust scenarios. Furthermore, it differentiates the spraying operation mode according to the dust diffusion range. For small, scattered first dust areas, a single spraying device is used in a cyclical operation to ensure dust suppression while reducing resource consumption. For large, high-intensity second dust areas formed by coupling interference of multiple devices, a multi-spraying device collaborative operation mode is activated to achieve multi-angle, full-coverage, and encircling atomized dust suppression, thereby improving dust suppression efficiency and effectiveness.

[0051] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A dust suppression system during earthwork excavation and transportation, characterized in that, include: The data sensing module is used to acquire the soil moisture content within the target area and the image sequence of the construction area of ​​several construction devices. The dust analysis module is used to determine the corresponding dust feature variation degree based on the construction area image sequence of each construction device, so as to determine the dust interference category of each construction device, wherein the dust interference category includes strong interference category and weak interference category; The spray analysis module is used to determine whether there is inter-device coupling interference based on the dust interference category and distribution of each construction device. If inter-device coupling interference exists, several key construction devices are identified based on the dust area changes of each construction device, and the spray operation mode is determined based on the dust diffusion range corresponding to each key construction device. This includes single spray device patrol operation and multi-spray device collaborative operation. The single spray device patrol operation applies atomized spraying action to the first dust area through a single spray device, and the multi-spray device collaborative operation applies atomized spraying action to the second dust area through multiple spray devices. The sprinkler control module is used to control the working state of the corresponding sprinkler device based on the sprinkler working mode, and to determine whether to adjust the working state of the sprinkler device based on the soil moisture content in the target area.

2. The dust suppression system during earthwork excavation and transportation according to claim 1, characterized in that, The dust analysis module includes: The image analysis unit is used to determine the rate of change of the dust area and the rate of change of the dust distribution corresponding to each construction device based on the image sequence of the construction area of ​​each construction device, so as to determine the degree of change of dust characteristics corresponding to each construction device. The category analysis unit is used to determine the dust interference category of each construction device based on the degree of change of dust characteristics corresponding to each construction device.

3. The dust suppression system during earthwork excavation and transportation according to claim 2, characterized in that, The image analysis unit determines the corresponding dust area based on any construction area image in the construction area image sequence of any of the construction devices, determines the dust area change rate based on the dust area change of each construction area image, and determines the dust area distribution change rate based on the dust area center movement of each construction area image.

4. The dust suppression system during earthwork excavation and transportation according to claim 3, characterized in that, The spray analysis module includes: An interference analysis unit is used to determine whether there is inter-device coupling interference based on the dust interference type and distribution of each construction device. The spray analysis unit is used to determine the dust distribution tendency of each construction device based on the determination result of the existence of coupling interference between devices and the dust area change of each construction device, so as to identify several key construction devices, and determine the corresponding dust diffusion range based on the distribution of each key construction device and the dust area, so as to determine the spray operation mode.

5. The dust suppression system during earthwork excavation and transportation according to claim 4, characterized in that, The spray control module includes: A spray unit includes several spray devices, which are used to apply atomized spraying action. The working state of a single spray device includes a normal working state and a stopped working state. A spray control unit, which controls the working state of the corresponding spray device based on the spray working mode; The spray adjustment unit is used to determine whether to adjust the working status of the spray device based on the soil moisture content in the target area.

6. The dust suppression system during earthwork excavation and transportation according to claim 5, characterized in that, The category analysis unit determines, based on a first determination condition, that the dust interference category of any of the construction devices is a strong interference category, and, based on a second determination condition, determines that the dust interference category of any of the construction devices is a weak interference category, wherein... The first determination condition is that the change in the dust characteristics of the construction device is greater than a preset change. The second determination condition is that the dust characteristic variation of the construction device is less than or equal to the preset variation.

7. The dust suppression system during earthwork excavation and transportation according to claim 6, characterized in that, The interference analysis unit determines the existence of inter-device coupling interference based on a third determination condition, wherein... The third determination condition is that the distance between any construction device of any strong interference category and any other construction device is less than a preset distance.

8. The dust suppression system during earthwork excavation and transportation according to claim 7, characterized in that, The spray analysis unit determines the dust distribution tendency of the construction device based on the dust area change of any of the construction devices, and determines several clustering device groups based on the dust distribution tendency of each construction device to identify several key construction devices, wherein the clustering device group includes at least two construction devices.

9. The dust suppression system during earthwork excavation and transportation according to claim 8, characterized in that, The spray analysis unit determines the dust diffusion range based on the distribution of each key construction device and the dust-generating area, and determines the spray operation mode based on the total area of ​​the dust diffusion range.

10. The dust suppression system during earthwork excavation and transportation according to claim 9, characterized in that, The spray analysis module determines that the spray operation mode is a single spray device operating in rotation, based on the judgment result that there is no coupling interference between devices.

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