Intelligent feedback control system of multifunctional dust suppression vehicle

Abstract

The invention relates to the field of vehicle intelligent feedback control systems, and particularly discloses a multifunctional dust suppression vehicle intelligent feedback control system which comprises a capturing unit used for collecting environment information of a dust suppression operation area in real time; the feedback unit is used for receiving and processing the environment information to obtain an environment feedback coefficient; the control unit is used for receiving the environment feedback coefficient, determining a feedback control strategy, outputting a control instruction signal parameter based on the feedback control strategy, and converting the control instruction signal parameter into a control instruction signal through digital-to-analog conversion; the transmission unit is used for transmitting the control instruction signal to an actuator of the dust suppression vehicle; the injection unit is used for receiving the control instruction signal and executing a corresponding dust suppression action; the spraying unit comprises a pipeline valve and an atomizing nozzle; and the control unit is used for cooperatively regulating and controlling the rotating speed and the wind direction of the axial flow fan, the opening degree of the pipeline valve and the spraying flow and the spraying range of the atomizing nozzle by receiving a feedback signal of the spraying unit.

Description

Technical Field

[0001] This invention relates to the field of intelligent feedback control systems for vehicles, and specifically to an intelligent feedback control system for a multi-functional dust suppression vehicle. Background Technology

[0002] With my country's increasing emphasis on environmental protection and air quality, dust suppression vehicles, as a highly efficient and mobile dust control equipment, have been widely used in urban road dust reduction and industrial and mining enterprise dust suppression. Traditional dust suppression vehicles are usually composed of a vehicle body, water tank, water pump, air duct fan, pipeline and nozzle and other actuators. Their operation mode mostly relies on the operator's experience to manually control parameters such as fan speed and spray flow.

[0003] Currently, with the development of intelligent technology, some dust suppression vehicles have begun to introduce automatic monitoring equipment, such as dust sensors to monitor PM2.5 or PM10 concentrations, and to start, stop, or adjust the speed of fans and water pumps based on the dust concentration. However, this type of preliminary automated control has some feedback and coordination issues: Firstly, since the generation and spread of dust are affected by a variety of coupled factors, its operating mechanism is complex. For dust suppression vehicles, directly capturing dust with a lens is subject to complex interference factors, and using only the single parameter of dust concentration cannot reflect the actual dust suppression needs on site. The lack of consideration for the actual situation leads to the control system being unable to make optimal decisions, affecting the efficiency of dust suppression decisions. Secondly, there is no mechanism to formulate adaptive adjustment control strategies for real-time changes in dust areas, and the control parameters are mostly preset and cannot adapt to the dynamic changes in different dust suppression work scenarios. Third, current dust suppression control methods are mostly simple trigger modes based on thresholds and actions, which cannot coordinate multiple actuators according to actual conditions, resulting in poor dust suppression effects. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional intelligent feedback control system for dust suppression vehicles, solving the following technical problems: How can we achieve coordinated control of real-time dust suppression scene information through a program control system to realize the efficient dust suppression process of the dust suppression vehicle?

[0005] The objective of this invention can be achieved through the following technical solutions: A multi-functional dust suppression vehicle intelligent feedback control system, the dust suppression vehicle includes a vehicle body, a guide air duct, and an axial flow fan, water tank, pipeline valves, and atomizing nozzles installed inside the guide air duct. The system includes: The capture unit is used to collect environmental information in the dust suppression operation area in real time. The feedback unit is used to receive and process environmental information to obtain environmental feedback coefficients; The control unit is used to receive environmental feedback coefficients to determine the feedback control strategy, output control command signal parameters based on the feedback control strategy, and convert the control command signal parameters into control command signals through digital-analog conversion. The transmission unit is used to transmit control command signals to the actuators of the dust suppression vehicle; The spray unit is used to receive control command signals and perform corresponding dust suppression actions; the spray unit includes pipeline valves and atomizing nozzles. The control unit receives feedback signals from the injection unit and coordinates the rotational speed and direction of the axial flow fan, the opening degree of the pipeline valves, and the spray flow rate and spray range of the atomizing nozzle.

[0006] Preferably, the capture unit is configured with: The image capture module is used to acquire visible light or infrared images of the dust suppression operation area; Dust sensors are used to detect the concentration data of PM2.5 and PM10 in the dust suppression operation area; Meteorological monitoring sensors are used to detect wind speed, wind direction, temperature, and humidity data in the dust suppression operation area.

[0007] Preferably, the feedback unit includes: The environmental information for the dust suppression operation area is as follows: The collected image area includes dust distribution values, dust concentration, wind speed, ambient temperature, and ambient humidity; the image area dust distribution value is the ratio of the dust distribution area to the total area of ​​the image area; the dust concentration is the average concentration of pM2.5 and pM10. When the dust distribution value of an image region within a given time period reaches a preset critical value, the dust concentration, wind speed, ambient temperature, and ambient humidity at that moment are recorded and analyzed. Determine if there is wind: If there is wind, determine whether the dust concentration exceeds the standard: If so, an environmental warning signal will be generated, and the ambient humidity will be increased; If not, then the changes in dust concentration, ambient temperature and ambient humidity ratio during the time period are statistically analyzed, and the environmental feedback coefficient is calculated. If there is no wind, determine if the ambient humidity is below a critical value, and if the critical value is greater than 0: If so, an environmental warning signal will be generated, and the ambient humidity will be increased; If not, then the changes in dust concentration, ambient temperature, and ambient humidity ratio during that time period are statistically analyzed to calculate the environmental feedback coefficient.

[0008] Preferably, the environmental feedback coefficient is calculated as follows: The real-time dust concentration, ambient temperature, and ambient humidity within a given time period are normalized to obtain dimensionless values. , , ; The change in dust concentration over this time period is determined by calculating the integral of dust concentration. ; The ambient temperature during this time period is determined by calculating the integral of the temperature-humidity ratio. and ambient humidity ratio ; Obtain the change in the ratio ; The environmental feedback coefficient is determined based on the ratio of the change in dust concentration to the change in the temperature-humidity ratio. : .

[0009] Preferably, the feedback strategy is based on the output control quantity of the PID controller. The calculation is determined, including: Input environmental feedback coefficients into the system Error with PID controller ;error The correction amount for the output PID parameters is determined by calculation based on the error between the setpoint and the process feedback value. , , Update error ; Based on the updated error Conduct on-site testing to calibrate the threshold range And 0 < < ; Will With the calibration threshold range Compare: like < If a slight dust disturbance is detected, the energy-saving mode will be activated. like ≤ < If there is significant dust emission, the standard mode will be activated. like ≥ If this is detected, it indicates severe dust emissions, and the powerful mode is activated.

[0010] Preferably, the coordinated control includes: Activate energy-saving mode: Axial flow fan maintains low to medium speed operation, airflow direction is adjusted to directional air supply covering dust points; pipeline valves are slightly open, and atomizing nozzles spray intermittently at low flow rates; In standard mode, the axial flow fan maintains a medium-high speed, the airflow direction is adjusted to directional airflow covering the dust points, and it oscillates slightly to expand the coverage area. In strong mode, the pipeline valves are opened to a medium degree, and the atomizing nozzles spray continuously at a medium flow rate. When the powerful mode is activated, the axial flow fan maintains its highest speed, and the wind direction is adjusted to a downward-facing directional strong wind to suppress dust sources, and it can also swing; the pipeline valves are fully open, and the atomizing nozzles spray continuously at a high flow rate, and the spray range can be adjusted synchronously according to the fan swing.

[0011] Preferably, the control unit further includes setting a security policy: When the environmental feedback coefficient Within the calibrated threshold range Continue in standard mode within 10% of the lower limit value until... If the value is 10% lower than when entering standard mode, then exit standard mode; When the dust sensor or weather monitoring sensor malfunctions, the system automatically switches to safety mode and issues an alarm; in safety mode, the axial flow fan maintains a minimum speed or is turned off, ensuring only ventilation; pipeline valves are closed, and atomizing nozzles are on standby. When the actuator malfunctions, the injection unit is immediately shut down and an alarm is triggered.

[0012] The beneficial effects of this invention are: (1) The present invention realizes the intelligent feedback control system of the dust suppression vehicle by setting up a capture unit, a feedback unit, a control unit, a transmission unit and a spraying unit to realize real-time perception of the working environment, intelligent analysis and coordinated control of various execution components, so as to realize the precise dust suppression process; (2) The present invention collects environmental information of the dust suppression operation area through the capture unit, records and analyzes the environmental information by linking the capture unit and the feedback unit, and then judges the environmental state of the dust suppression operation. After obtaining the environmental feedback coefficient, the control unit performs adaptive regulation according to the size of the environmental feedback coefficient. The control parameters are adjusted according to the size of the environmental feedback coefficient to realize the operation mode that adapts to the dynamic changing scene. The system can smoothly and automatically switch between different operation modes according to the dynamic change of the environmental feedback coefficient EFC value, so that the system can adapt to the dynamic changes of different scenes and has strong versatility and environmental compatibility. (3) The control unit transmits the control information to the control unit through the transmission unit and executes the control information through the spray unit. The control unit receives the feedback signal from the spray unit and executes the corresponding dust suppression action by receiving the control command signal. The control unit realizes coordinated control of the rotation speed and wind direction of the axial flow fan, the opening degree of the pipeline valve, and the spray flow rate and spray range of the atomizing nozzle through the transmission unit, thereby ensuring that the dust suppression vehicle can accurately select the dust suppression range according to the dust suppression operation environment on site and realize the dynamic change of different dust suppression work scenarios. Furthermore, the dust suppression efficiency is doubled through the integrated control and coordination of wind and water factors.

[0013] Of course, any product implementing this invention does not necessarily need to achieve all the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a unit diagram of a multifunctional dust suppression vehicle intelligent feedback control system according to the present invention; Figure 2 This is a schematic diagram of the structure of a multifunctional dust suppression vehicle according to the present invention.

[0016] Reference numerals: 1. Vehicle body; 2. Air duct; 21. Axial flow fan; 22. Water tank; 23. Pipeline valve; 24. Atomizing nozzle. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-2 As shown, this invention is a multi-functional dust suppression vehicle intelligent feedback control system. The dust suppression vehicle includes a vehicle body 1, a guide air duct 2, and an axial flow fan 21, a water tank 22, pipeline valves 23, and atomizing nozzles 24 installed in the guide air duct 2. The system includes: The capture unit is used to collect environmental information in the dust suppression operation area in real time. The feedback unit is used to receive and process environmental information to obtain environmental feedback coefficients; The control unit is used to receive environmental feedback coefficients to determine the feedback control strategy, output control command signal parameters based on the feedback control strategy, and convert the control command signal parameters into control command signals through digital-analog conversion. The transmission unit is used to transmit control command signals to the actuators of the dust suppression vehicle; The spraying unit is used to receive control command signals and perform corresponding dust suppression actions; the spraying unit includes a pipeline valve 23 and an atomizing nozzle 24. The control unit receives feedback signals from the injection unit and coordinates the rotation speed and air direction of the axial flow fan 21, the opening degree of the pipeline valve 23, and the spray flow rate and spray range of the atomizing nozzle 24.

[0019] In the above technical solution, by setting up a capture unit, a feedback unit, a control unit, a transmission unit, and a spraying unit, the dust suppression vehicle realizes an intelligent feedback control system that can perceive the working environment in real time, intelligently analyze and coordinate the control of various execution components, thereby achieving a precise dust suppression process. Specifically, the system collects environmental information from the dust suppression operation area through a capture unit. This capture unit is connected to a feedback unit; upon receiving environmental information, the feedback unit is triggered to process and evaluate the information to obtain an environmental feedback coefficient. The purpose of setting the environmental feedback coefficient is to address the lack of dust handling capabilities in complex on-site operating environments in existing dust suppression vehicle control programs. By linking the capture and feedback units to record and analyze environmental information, the system couples the main factors of dust diffusion—wind speed and humidity—to determine the environmental state characteristic of the dust suppression operation. Furthermore, after obtaining the environmental feedback coefficient, the control unit adaptively adjusts the control parameters based on the coefficient's magnitude. This allows the system to adapt to dynamically changing operating modes, smoothly and automatically switching between different modes based on the environmental feedback coefficient (EFC) value. This enables the system to adapt to dynamic changes in different scenarios, exhibiting strong versatility and environmental compatibility.

[0020] The control unit transmits control information to the control unit via a transmission unit, and the injection unit executes the control information. The control unit receives feedback signals from the injection unit, and specifically transmits control command signals to the actuators of the dust suppression vehicle via the transmission unit. The injection unit, as one of the actuators of the dust suppression vehicle, includes pipeline valves 23 and atomizing nozzles 24. It receives control command signals and executes corresponding dust suppression actions. The control unit, through the transmission unit, coordinates the rotation speed and wind direction of the axial flow fan 21, the opening degree of the pipeline valve 23, and the spray flow rate and spray range of the atomizing nozzles 24. This ensures that the dust suppression vehicle can accurately select the dust suppression range according to the dust suppression operation environment on site, achieving dynamic changes to adapt to different dust suppression work scenarios. Furthermore, through integrated control of wind and water factors, the axial flow fan 21 accurately and efficiently delivers mist droplets to the designated location and gives the mist droplets higher kinetic energy to penetrate dust clouds. The water from the atomizing nozzles 24 is responsible for capturing and settling dust. By coordinating wind and water control, the dust suppression efficiency is doubled.

[0021] In one embodiment of the present invention, the capture unit is configured with: The image capture module is used to acquire visible light or infrared images of the dust suppression operation area; Dust sensors are used to detect the concentration data of PM2.5 and PM10 in the dust suppression operation area; Meteorological monitoring sensors are used to detect wind speed, wind direction, temperature, and humidity data in the dust suppression operation area.

[0022] In the above technical solution, the capture unit captures environmental information of the dust suppression operation area. The configured equipment includes an image capture module, a dust sensor, and a meteorological monitoring sensor. The image capture module constructs an image visual scene and combines the dust sensor and the meteorological monitoring sensor to build a multi-dimensional perception network, thereby realizing hierarchical judgment of environmental information. The meteorological monitoring sensor is equipped with a temperature and humidity meter, which can capture temperature and humidity data in the environment while obtaining wind speed and wind direction information.

[0023] As one embodiment of the present invention, the feedback unit includes: The environmental information for the dust suppression operation area is as follows: The collected image area includes dust distribution values, dust concentration, wind speed, ambient temperature, and ambient humidity; the image area dust distribution value is the ratio of the dust distribution area to the total area of ​​the image area; the dust concentration is the average concentration of pM2.5 and pM10. When the dust distribution value of an image region within a given time period reaches a preset critical value, the dust concentration, wind speed, ambient temperature, and ambient humidity at that moment are recorded and analyzed. Determine if there is wind: If there is wind, determine whether the dust concentration exceeds the standard: If so, an environmental warning signal will be generated, and the ambient humidity will be increased; If not, then the changes in dust concentration, ambient temperature and ambient humidity ratio during the time period are statistically analyzed, and the environmental feedback coefficient is calculated. If there is no wind, determine if the ambient humidity is below a critical value, and if the critical value is greater than 0: If so, an environmental warning signal will be generated, and the ambient humidity will be increased; If not, then the changes in dust concentration, ambient temperature, and ambient humidity ratio during that time period are statistically analyzed to calculate the environmental feedback coefficient.

[0024] In the above technical solution, firstly, the environmental information of the dust suppression operation area is determined. By recording and obtaining the dust distribution value of the image area within a time period, it is determined that when the preset critical value is reached, it is impossible to accurately determine whether the dust is continuous or temporary. Further roadbed analysis is required to distinguish the dust causes in the area and achieve accurate preliminary decision-making. In practical implementation, dust sources exist on the construction site, and dust suppression points are set up near these sources within the dust suppression operation area. Using only dust sensors to monitor dust concentration sometimes results in low sensor readings, yet the image capture module clearly captures localized dust rising (e.g., dry dust kicked up by vehicles that hasn't yet spread widely). Conversely, concentration readings may be temporarily high, but the image shows only momentary interference from passing vehicles, not a continuous dust source. By combining image visualization, dust concentration, and meteorological conditions, the probability of false alarms and missed alarms is greatly reduced. Using "image distribution value reaching a critical value" as the trigger condition for analysis ensures that the feedback controller only analyzes and responds when "dust is indeed seen," avoiding system malfunctions caused by occasional sensor fluctuations and improving the accuracy and reliability of sensing.

[0025] Therefore, by initially identifying the main problem causing dust pollution based on environmental conditions, timely preliminary intervention can be implemented. This involves recording and analyzing the dust concentration, wind speed, ambient temperature, and humidity at that moment. It's necessary to determine whether the dust concentration in the area has reached a preset critical value while also being influenced by wind. Specifically, if wind is present and there is moving dust, it indicates "wind-driven dust dispersion," meaning the dust is rapidly spreading. In this case, immediately generating an environmental warning signal and increasing ambient humidity is the top priority to quickly increase the weight of dust particles and inhibit their spread. If no wind is detected, then... It is necessary to determine whether there is insufficient humidity in the environment. If the humidity is low, there is "dry dust," and loose materials on the ground are easily stirred up by mechanical disturbances (such as passing vehicles). In this case, the primary task is to "humidify" to reduce the possibility of dust generation at the source. For the other two situations, namely, wind but excessive dust concentration and no wind but normal humidity, the current environment is judged to be in a state of "potential risk" or "continuous slight emission." This indicates that further analysis is needed. Instead of emergency humidification, a more refined EFC coefficient calculation process should be initiated to provide a basis for subsequent mode selection.

[0026] The output of the feedback unit, namely the environmental feedback coefficient and other early warning signals, serves as the direct basis for the optimal decision-making of the control unit. This ensures that the data input to the control unit is a fused extraction, not a simple distribution extraction of the original data. The environmental feedback coefficient obtained by the feedback unit can greatly reduce the computational burden of traditional control units and enable the rapid and efficient execution of subsequent control modes, as well as the matching and coordination process of control modes. Furthermore, the logical design of this feedback unit allows the system to automatically adapt to different dust pollution scenarios. Especially in construction sites, ports, and other application scenarios, it can effectively handle different scenarios such as windy and windless conditions, effectively improving the versatility and robustness of the dust suppression vehicle's program control. It is suitable for various industrial dust suppression scenarios, thereby increasing its large-scale promotion.

[0027] As one embodiment of the present invention, the environmental feedback coefficient is calculated as follows: The real-time dust concentration, ambient temperature, and ambient humidity within a given time period are normalized to obtain dimensionless values. , , ; Dimensionless values ​​can be used to arrange these real-time data points in chronological order; The integral is approximated using the trapezoidal rule, and the change in dust concentration over that time period is determined by calculating the integral of dust concentration. :

[0028] in, The total number of data points, and ∈ Summation from arrive ; First, the ambient temperature during this time period is determined by calculating the integral of the temperature-humidity ratio. and ambient humidity For each point in time within that time period Calculate the ratio ; Then, the integral is approximated using the trapezoidal rule to obtain the change in the ratio. :

[0029] Finally, the environmental feedback coefficient is determined based on the ratio of the change in dust concentration to the change in the temperature-humidity ratio. :

[0030] It should also be noted that the environmental feedback coefficient is obtained by dividing the two integral values ​​mentioned above. By combining dust concentration with temperature and humidity conditions, the relationship between dust concentration and temperature and humidity conditions was explored and quantified, and this environmental feedback coefficient was established. It can quantify the relationship between dust concentration and temperature and humidity conditions. (Higher...) The values ​​indicate that dust concentration accumulation is more significant under given temperature and humidity conditions; furthermore, it can be calculated that dust concentrations accumulate more significantly over different time periods. Analyze the changing trends of environmental feedback relationships.

[0031] In a specific implementation example, monitoring data is obtained through on-site environmental monitoring, with data collected every hour, as detailed in Table 1 below: Table 1 Time (h) Dust concentration (μg / m³) Temperature (°C) Relative humidity (%) 1 50 25 60 2 75 27 55 3 100 29 50 4 125 31 45 5 150 33 45 The monitoring data in Table 1 above were normalized using the Min-Max normalization method: the minimum dust concentration was 50, and the maximum was 150; calculations were performed. Therefore, the normalized dust concentrations are 0, 0.25, 0.5, 0.75, and 1, respectively; the normalized temperature range is 8; the normalized temperature values ​​for time points are 0, 0.25, 0.5, 0.75, and 1, respectively; the normalized relative humidity range is 15, and the normalized values ​​for time points are 1, 0.75, 0.5, 0.25, and 1, respectively. The normalized data is shown in Table 2, as follows: Table 2 Time (hours) Dust concentration (normalized) Temperature (normalized) Relative humidity (normalized) 1 0.00 0.00 1.00 2 0.25 0.25 0.75 3 0.50 0.50 0.50 4 0.75 0.75 0.25 5 1.00 1.00 1.00 Calculate the dust concentration integral The formula is: [(0.00 + 0.25) / 2 × (2 - 1)] + [(0.25 + 0.50) / 2 × (3 - 2)] + [(0.50 + 0.75) / 2 × (4 - 3)] + [(0.75 + 1.00) / 2 × (5 - 4)] = [0.125 × 1] + [0.375 × 1] + [0.625 × 1] + [0.875 × 1] = 0.125 + 0.375 + 0.625 + 0.875 = 2.000; Calculate the temperature-humidity ratio values ​​as 0, 0.333, 1, 3, 10 (replace 0 with 0.1; since the actual relative humidity is relatively small after normalization, in order to ensure that the calculation results are within a reasonable range, and the actual relative humidity is greater than 0, a minimum threshold can be preset as a reference, and substitution is performed when the value is lower than the range); Perform the temperature-humidity ratio integration. Calculate: [(0.00 + 0.3333) / 2 × (2 - 1)] + [(0.3333 + 1.00) / 2 × (3 - 2)] + [(1.00 + 3.00) / 2 × (4 - 3)] + [(3.00 + 1.00) / 2 × (5 - 4)] = [0.16665 × 1] + [0.66665 × 1] + [2.00 × 1] + [2.00 × 1] = 0.16665 + 0.66665 + 2.00 + 2.00 = 4.83333; Calculate the environmental feedback coefficient .

[0032] As one embodiment of the present invention, the feedback strategy is based on the output control quantity of the PID controller. The calculation is determined, including: Input environmental feedback coefficients into the system Error with PID controller ;error The correction amount for the output PID parameters is determined by calculation based on the error between the setpoint and the process feedback value. , , Update error ; Based on the updated error Conduct on-site testing to calibrate the threshold range And 0 < < ; Will With the calibration threshold range Compare: like < If a slight dust disturbance is detected, the energy-saving mode will be activated. like ≤ < If there is significant dust emission, the standard mode will be activated. like ≥ If this is detected, it indicates severe dust emissions, and the powerful mode is activated.

[0033] In the above technical solution, the target value for dust control is preset, and then the parameters of the PID controller are initialized so that the proportional coefficient is... ; ; Calibration threshold range: Through field testing, the threshold range of the environmental feedback coefficient was determined as follows: Slight perturbation threshold The value is 0.3, which is clearly the emission threshold. The value is 0.7; firstly, the dust sensor collects the PM10 concentration value (process feedback value) downwind of the dust source in real time, and calculates the error between it and the set value. Then the control unit, based on the PID control algorithm, adjusts the control parameters according to the error. Calculate the output control quantity Next, output control quantity Normalized to environmental feedback coefficient The threshold range is Finally, the EFC value is compared with the calibrated threshold range. If it is less than 0.3, it is determined that there is slight dust disturbance, and the energy-saving mode is activated. When machinery is operating intensively on the construction site, When the EFC value rises, for example to 0.5, the system determines that there is significant dust emission; the control unit immediately activates the standard mode. When the EFC value continues to rise and exceeds 0.7, the system determines that there is severe dust emission. The control unit immediately activates the powerful mode. In this case, the environmental feedback coefficient is 0.4137, indicating that it falls within the threshold range. If the system emits dust, it indicates that there is significant dust emission. The control unit needs to activate the standard mode and execute control commands, such as: increasing the speed of the axial fan 21 to 65% of its rated speed, and slightly oscillating the airflow direction at an angle of ±15° while covering the excavation area; increasing the opening of the pipeline valve 23 to 50%; and switching the atomizing nozzle 24 to a medium-flow continuous spray.

[0034] As one embodiment of the present invention, the cooperative control includes: Energy-saving mode activated: Axial flow fan 21 maintains low to medium speed operation, and the airflow direction is adjusted to directional air supply covering dust points; pipeline valve 23 is slightly open, and atomizing nozzle 24 performs low-flow intermittent spraying; In standard mode, axial flow fan 21 maintains medium-high speed operation, wind direction is adjusted to directional air supply covering dust points, and slight oscillation is made to expand the coverage area. In strong mode, pipeline valve 23 is opened to a medium degree, and atomizing nozzle 24 sprays continuously at a medium flow rate. When the powerful mode is activated, the axial flow fan 21 maintains its highest speed and the wind direction is adjusted to a downward angle directional strong wind to suppress dust sources, and it can swing; the pipeline valve 23 is fully open, and the atomizing nozzle 24 sprays continuously at a high flow rate, and the spray range can be adjusted synchronously according to the fan swing.

[0035] As one embodiment of the present invention, the control unit further includes setting a security policy: When the environmental feedback coefficient Within the calibrated threshold range Continue in standard mode within 10% of the lower limit value until... If the value is 10% lower than when entering standard mode, then exit standard mode; When the dust sensor or weather monitoring sensor malfunctions, the system automatically switches to safety mode and issues an alarm; in safety mode, the axial flow fan 21 maintains the lowest speed or is turned off, ensuring only ventilation; the pipeline valve 23 is closed, and the atomizing nozzle 24 is on standby. When the actuator malfunctions, the injection unit is immediately shut down and an alarm is triggered.

[0036] In the aforementioned technical solution, furthermore, in actual operation, for example, during blasting operations, although the dust concentration decreases, it makes... The value dropped back to 0.75, but the system detected... The value is not more than 10% lower than the threshold (0.7) when entering standard mode (i.e., not lower than 0.63); at this time, it is still necessary to maintain the strong mode to ensure that the dust is continuously suppressed; and as the dust continues to decrease and drops below 0.63, the system exits the strong mode and switches to standard mode to avoid problems such as frequent switching near the threshold between the two modes. In addition, for some equipment failures, such as the sudden power failure of the meteorological monitoring sensor, the control unit detects the loss of sensor signal and immediately triggers the safety mode; the safety mode instructions are as follows: the axial flow fan 21 is reduced to 15% of the rated speed (to maintain basic ventilation and prevent equipment overheating); the pipeline valve 23 is completely closed; the atomizing nozzle 24 stops working and stands by; at the same time, the control unit sends a "sensor failure" alarm to the administrator's mobile phone through the audible and visual alarm and the 4G module.

[0037] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments of apparatus, devices, and non-volatile computer storage media are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0038] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended documents. In some cases, the actions or steps described in this application may be performed in a different order than that shown in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0039] The above content is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in this application, they should all fall within the protection scope of the present invention.

Claims

1. A multifunctional dust suppression vehicle intelligent feedback control system, the dust suppression vehicle comprising a vehicle body (1), a guide wind tube (2), an axial flow fan (21) arranged in the guide wind tube (2), a water tank (22), a pipeline valve (23), and an atomizing nozzle (24), characterized in that, The system comprises: a capturing unit for collecting environmental information of a dust suppression operation area in real time; a feedback unit for receiving and processing the environmental information to obtain an environmental feedback coefficient; a control unit for receiving the environmental feedback coefficient to determine a feedback control strategy, outputting a control instruction signal parameter based on the feedback control strategy, and converting the control instruction signal parameter into a control instruction signal through digital-to-analog conversion; a transmission unit for transmitting the control instruction signal to an actuator of a dust suppression vehicle; a spraying unit for receiving the control instruction signal and performing corresponding dust suppression actions; the spraying unit comprises the pipeline valve (23) and the atomizing nozzle (24); the control unit cooperatively controls the rotational speed and wind direction of the axial flow fan (21), the opening degree of the pipeline valve (23), and the spraying flow and spraying range of the atomizing nozzle (24) by receiving feedback signals of the spraying unit.

2. The intelligent feedback control system of a multifunctional dust suppression vehicle according to claim 1, wherein, The capturing unit is configured with: an image capturing module for obtaining a visible light image or an infrared image of the dust suppression operation area; a dust sensor for detecting concentration data of pM2.5 and pM10 in the dust suppression operation area; a meteorological monitoring sensor for detecting wind speed, wind direction, temperature, and humidity data in the dust suppression operation area.

3. The intelligent feedback control system of a multifunctional dust suppression vehicle according to claim 2, wherein, The feedback unit comprises: determining the environmental information of the dust suppression operation area, wherein the environmental information includes: collected image area dust distribution value, dust concentration, wind speed, environmental temperature, and environmental humidity; the image area dust distribution value is the ratio of the image dust distribution area to the total image area; the dust concentration is the average concentration of pM2.5 and pM10; when the image area dust distribution value reaches a preset critical value within a certain time period, recording and analyzing the dust concentration, wind speed, environmental temperature, and environmental humidity at that moment: determining whether there is wind: if there is wind, determining whether the dust concentration exceeds the standard: if yes, generating an environmental warning signal and increasing the environmental humidity; if no, calculating the environmental feedback coefficient by counting the change in the dust concentration, the ratio of the environmental temperature to the environmental humidity, and the change in the ratio within the time period; if there is no wind, determining whether the environmental humidity is lower than the critical value, and the critical value is greater than 0: if yes, generating an environmental warning signal and increasing the environmental humidity; if no, calculating the environmental feedback coefficient by counting the change in the dust concentration, the ratio of the environmental temperature to the environmental humidity, and the change in the ratio within the time period.

4. The intelligent feedback control system of a multifunctional dust suppression vehicle according to claim 3, wherein, The calculation method of the environmental feedback coefficient is: The real-time dust concentration and the environmental temperature and humidity in the time period are normalized to obtain dimensionless values 、 、 ; The dust concentration change amount in the time period is determined by calculating the dust concentration integral ; The ambient temperature during this time period is determined by calculating the integral of the temperature-humidity ratio. and ambient humidity ratio Obtain the temperature-humidity ratio. Change ; Determining an environmental feedback coefficient based on a ratio of a dust concentration change amount and a temperature-humidity ratio change amount : 。 5. The intelligent feedback control system of a multifunctional dust suppression vehicle according to claim 4, wherein, The feedback strategy is an output control quantity based on a PID controller determined by calculation, comprising: Inputting environmental feedback coefficient to system And error of PID controller ; The error Is determined by operation of error between set value and process feedback value; The correction amount of output PID parameter , , , Update error ; According to the updated error Field testing to calibrate threshold interval ; and 0 < x < 1 < 0 ; Comparing to a calibration threshold interval to a calibration threshold interval If < then it is determined that there is a slight dust disturbance and the energy saving mode is activated; If ≤ < then it is determined that there is a significant dust emission and the standard mode is started. If ≥ then it is determined that there is a severe dust emission and the strong mode is activated.

6. The intelligent feedback control system of a multifunctional dust suppression vehicle according to claim 5, wherein, The cooperative control comprises: starting the energy-saving mode: the axial flow fan (21) runs at a medium-low speed, the wind direction is adjusted to directional air supply covering the dust raising point, the pipeline valve (23) is slightly opened, and the atomizing nozzle (24) performs low-flow intermittent spraying; starting the standard mode: the axial flow fan (21) runs at a medium-high speed, the wind direction is adjusted to directional air supply covering the dust raising point and slightly swinging to expand the coverage range, the pipeline valve (23) is moderately opened, and the atomizing nozzle (24) performs medium-flow continuous spraying; Start strong mode, axial flow fan (21) keep the highest speed operation, wind direction adjustment for suppression of dust point dust source of depression angle directional strong wind, and can swing; pipeline valve (23) full open, atomizing nozzle (24) for high flow continuity spray, and can according to the fan swing synchronous adjustment injection range.

7. The intelligent feedback control system of a multifunctional dust suppression vehicle according to claim 5, wherein, The control unit further comprises setting a safety policy: When the environmental feedback coefficient Within the calibrated threshold range Continue in standard mode within 10% of the lower limit value until... If the value is 10% lower than when entering standard mode, then exit standard mode; When the dust sensor or weather monitoring sensor fails, the system automatically switches to safety mode and sends an alarm; the safety mode is to maintain the minimum speed or close the axial flow fan (21) to ensure ventilation only; the pipeline valve (23) is closed, and the atomizing nozzle (24) is on standby; When the actuator fails, the injection unit is immediately closed, and an alarm is sent.

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