Intelligent matching control method and related equipment for negative pressure and speed in the ventilation duct of a sweeper truck.

Abstract

This invention provides an intelligent matching control method and related equipment for the negative pressure and rotation speed of a sweeper truck's duct, comprising: determining a target pressure parameter corresponding to the current operating mode; acquiring the current pressure parameter of the duct; adjusting the fan speed when the current pressure parameter does not meet the target pressure parameter so that the current pressure parameter meets the target pressure parameter; and maintaining the corresponding fan speed when the current pressure parameter meets the target pressure parameter. Through this method, intelligent matching control of the duct negative pressure and fan speed is achieved, which is beneficial for improving the operational adaptability and stability of the sweeper truck under different operating modes.

Description

Technical Field

[0001] This invention relates to the field of intelligent control, and in particular to an intelligent matching control method, device, system, electronic device and storage medium for negative pressure and rotation speed in the air duct of a sweeper truck. Background Technology

[0002] During road sweeping, washing, and garbage collection operations, sweeper trucks typically require a blower to create negative pressure within the ductwork to suck in and transport garbage, dust, and debris. The negative pressure state of the ductwork directly affects the sweeper truck's suction and sweeping effect, operating efficiency, and overall energy consumption. Therefore, how to rationally control the blower's operating state according to different operating conditions is a crucial technical issue in the sweeper truck's control system.

[0003] In existing sweeper trucks, the fan control typically employs a preset fixed speed operation mode, or the operator manually adjusts the fan speed based on experience. Under this control method, there is a lack of an effective matching mechanism between the fan speed and the negative pressure in the duct. When the operating mode or the actual operating environment changes, insufficient or excessive negative pressure in the duct can easily occur. Insufficient negative pressure affects the garbage suction capacity and sweeping effect, while excessive negative pressure may lead to increased energy consumption, making it difficult to balance operational efficiency and economical operation.

[0004] Furthermore, existing technologies for fan control under different operating modes mostly only achieve mode switching or gear switching, lacking a control method that can detect and judge based on target pressure parameters, automatically adjust fan speed when the pressure is not reached, and maintain the corresponding speed operation after the pressure reaches the target. Therefore, it is necessary to provide an intelligent matching control method for the negative pressure and speed of the sweeper truck's duct to solve the technical problems of insufficient matching between fan speed and duct negative pressure, poor operational adaptability, and low operational stability in existing technologies. Summary of the Invention

[0005] This invention provides an intelligent matching control method for the negative pressure and rotation speed of a sweeper truck's air duct, in order to solve the technical problems in the prior art where the matching between the fan speed and the negative pressure of the air duct is insufficient in different operating modes of the sweeper truck, resulting in unstable air duct negative pressure control, fluctuating suction and sweeping effects, poor operational adaptability, and high energy consumption and noise.

[0006] In a first aspect, embodiments of the present invention provide an intelligent matching control method for negative pressure and rotational speed in the air duct of a sweeper truck, the method comprising the following steps: Determine the target pressure parameters corresponding to the current operating mode; Obtain the current pressure parameters of the air duct; When the current pressure parameter does not meet the target pressure parameter, the fan speed is adjusted so that the current pressure parameter meets the target pressure parameter; When the current pressure parameter meets the target pressure parameter, maintain the corresponding fan speed.

[0007] Optionally, determining the target pressure parameter corresponding to the current operating mode includes: Get the current job mode; Identify the target control requirement type corresponding to the current operation mode; Based on the target control requirement type, the corresponding target pressure parameter is obtained by matching from the preset mode parameter correspondence.

[0008] Optionally, obtaining the current pressure parameters of the air duct includes: Pressure status information within the air duct is collected by a pressure detection unit installed on the air duct. Based on the pressure status information, the current pressure parameters of the air duct are determined.

[0009] Optionally, adjusting the fan speed when the current pressure parameter does not meet the target pressure parameter, so that the current pressure parameter meets the target pressure parameter, includes: Based on the deviation between the current pressure parameter and the target pressure parameter, a corresponding speed adjustment strategy is determined; Generate a corresponding speed adjustment command based on the speed adjustment strategy; Based on the speed adjustment command, the fan speed is controlled to be adjusted.

[0010] Optionally, determining the corresponding speed adjustment strategy based on the deviation between the current pressure parameter and the target pressure parameter includes: When the current pressure parameter is lower than the target pressure parameter, a corresponding speed-up adjustment strategy is determined; When the current pressure parameter is higher than the target pressure parameter, a corresponding deceleration adjustment strategy is determined; The corresponding speed adjustment range is determined based on the deviation between the current pressure parameter and the target pressure parameter.

[0011] Optionally, determining the corresponding speed adjustment range based on the deviation between the current pressure parameter and the target pressure parameter includes: The deviation between the current pressure parameter and the target pressure parameter is divided into a large deviation range and a small deviation range; When the deviation is within the large deviation range, a first speed adjustment range is determined; When the deviation is within the small deviation range, a second speed adjustment range is determined, wherein the first speed adjustment range is greater than the second speed adjustment range.

[0012] Secondly, embodiments of the present invention also provide an intelligent matching control device for the negative pressure and rotation speed of a sweeper truck's duct, the intelligent matching control device for the negative pressure and rotation speed of the sweeper truck's duct includes: The first determining module is used to determine the target pressure parameters corresponding to the current operating mode; The first acquisition module is used to acquire the current pressure parameters of the air duct; The first adjustment module is used to adjust the fan speed when the current pressure parameter does not meet the target pressure parameter, so that the current pressure parameter meets the target pressure parameter; The holding module is used to maintain the corresponding fan speed when the current pressure parameter meets the target pressure parameter.

[0013] Thirdly, embodiments of the present invention provide an intelligent matching control system for the negative pressure and rotation speed of a sweeper truck's duct. The intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's duct includes: an intelligent matching control device for the negative pressure and rotation speed of the sweeper truck's duct, a server, and an intelligent hydraulic compaction device.

[0014] Fourthly, embodiments of the present invention provide an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps in the intelligent matching control method for negative pressure and rotation speed of the sweeper duct provided in the embodiments of the present invention.

[0015] Fifthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, it implements the steps in the intelligent matching control method for negative pressure and rotation speed of the sweeper duct provided in the embodiments of the present invention.

[0016] In this embodiment of the invention, a target pressure parameter corresponding to the current operating mode is determined; the current pressure parameter of the air duct is obtained; when the current pressure parameter does not meet the target pressure parameter, the fan speed is adjusted so that the current pressure parameter meets the target pressure parameter; when the current pressure parameter meets the target pressure parameter, the corresponding fan speed is maintained. Through the above method, intelligent matching control of the air duct negative pressure and the fan speed is achieved, which is beneficial to improving the operational adaptability and stability of the sweeper truck under different operating modes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a system architecture diagram of an intelligent matching control system for the negative pressure and rotation speed of a sweeper truck's air duct, provided in an embodiment of the present invention. Figure 2 This is a flowchart of an intelligent matching control method for negative pressure and rotation speed in the air duct of a sweeper truck, provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of an intelligent matching control device for negative pressure and rotation speed in the air duct of a sweeper truck provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0019] 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.

[0020] like Figure 1 As shown, Figure 1 This is an architectural diagram of an intelligent matching control system 100 for the negative pressure and rotation speed of a sweeper truck's duct, provided in an embodiment of the present invention. The intelligent matching control system includes: an intelligent matching control device 300 for the negative pressure and rotation speed of the sweeper truck's duct, a server 101, and a duct adsorption actuator 102. The intelligent matching control device 300 further includes a first determining module for determining the target pressure parameter corresponding to the current operating mode; a first acquiring module for acquiring the current pressure parameter of the duct; a first adjusting module for adjusting the fan speed to meet the target pressure parameter when the current pressure parameter does not meet the target pressure parameter; and a maintaining module for maintaining the corresponding fan speed when the current pressure parameter meets the target pressure parameter.

[0021] Specifically, the aforementioned current operating mode refers to the corresponding working state selected by the sweeper truck during actual operation based on current sweeping needs, suction intensity requirements, or operating conditions. This mode characterizes the target negative pressure control level that the current duct system needs to achieve. The current operating mode can be any of the following: energy-saving operating mode, standard operating mode, heavy-duty operating mode, or custom operating mode, or other mode types categorized according to operating intensity, operating environment, or suction needs. Different current operating modes correspond to different suction needs and duct negative pressure requirements. Therefore, the aforementioned intelligent matching control system for the sweeper truck's duct negative pressure and speed can first identify or determine the current operating mode during actual operation, and then perform subsequent pressure detection and speed adjustment around the control target corresponding to that operating mode.

[0022] The aforementioned target pressure parameter can refer to a target negative pressure value, target negative pressure range, or target pressure control range set corresponding to the current operating mode. It characterizes the target pressure state that the duct system should achieve or maintain under the current operating mode. This target pressure parameter can be a parameter pre-stored in the control device, a parameter retrieved based on the current operating mode, or a corresponding parameter from a set of mode pressure parameters pre-set based on the vehicle's operational requirements. In this embodiment, the aforementioned target pressure parameter is preferably used to characterize the target negative pressure requirement of the duct system under the current mode. That is, the intelligent matching control system for the sweeper truck's duct negative pressure and rotation speed subsequently adjusts the fan speed not directly with a fixed rotation speed value as the control endpoint, but rather with the goal of ensuring that the current duct pressure parameter reaches the aforementioned target pressure parameter.

[0023] The aforementioned current pressure parameter refers to the current pressure state parameter of the duct, which is detected in real time by a pressure detection unit installed on the duct. It characterizes the actual negative pressure state formed by the duct system at the current moment. This current pressure parameter can be a pressure detection value at a single moment, or it can be a current pressure value after acquisition and processing. It can be a parameter corresponding to a directly detected pressure signal, or it can be a pressure parameter used for control judgment after conversion, transformation, or processing based on the pressure signal. Because the actual pressure state within the duct is not constant during the actual operation of the sweeper truck, it is affected by factors such as changes in duct resistance, garbage load, road surface environment, and fan operating status. Therefore, it is necessary to continuously or periodically obtain the current pressure parameter through the aforementioned pressure detection process as a basis for subsequent adjustment of the fan speed.

[0024] In one possible embodiment, the intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's duct can define the target pressure parameter as the current pressure parameter reaching the target pressure parameter as a defined target requirement state. This could be the current pressure parameter equal to the target pressure parameter, the current pressure parameter entering the pressure range or allowable deviation range corresponding to the target pressure parameter, or the current pressure parameter reaching a qualified state recognized under preset judgment conditions.

[0025] Furthermore, when the actual negative pressure of the current duct already meets the target control requirements of the current operating mode, that is, when the intelligent matching control system of the sweeper truck's duct negative pressure and speed believes that the current fan operation status can meet the duct suction requirements of the corresponding mode, a direct comparison method or an interval judgment method can be used for judgment. It should be noted that once it is determined that the current pressure parameter meets the target pressure parameter, it means that the current fan speed and duct negative pressure have reached a relative matching state. At this time, there is no need to continue to adjust the fan speed further, but to maintain the current speed operation.

[0026] In another possible embodiment, the intelligent matching control system for negative pressure and speed of the sweeper duct can adjust the fan speed according to the difference between the current pressure state and the target pressure state when the current pressure parameter does not meet the target pressure parameter.

[0027] Furthermore, the fan speed can be increased or decreased, or the adjustment can be made in the direction and magnitude of the adjustment based on the deviation between the current pressure parameter and the target pressure parameter. In one possible implementation, the fan output capacity is corrected so that the current pressure parameter in the duct gradually approaches and eventually reaches the target pressure parameter. In other words, the adjustment is a speed correction process guided by the goal of achieving the duct pressure target. Its essence is to link the fan speed control with the duct pressure state control to establish a corresponding matching relationship between the duct negative pressure and the fan speed.

[0028] By adopting the above technical solution, under different operating modes, the corresponding target pressure parameters can be determined first, and then the fan speed can be adjusted accordingly based on the current duct pressure parameters. Once the duct pressure reaches the target requirement, the corresponding speed is maintained, thereby achieving matched control between the duct negative pressure and the fan speed. Compared to existing technologies that directly use fixed speed control or rely on manual experience to adjust the fan speed, this embodiment enables the fan output capacity to adapt to the duct negative pressure requirements of the current operating mode. This improves the adaptability of the sweeper truck to different operating modes, enhances the stability of duct negative pressure control, reduces noise and energy consumption increases caused by improper speed settings, and also improves the operational coordination and effectiveness of the entire sweeper truck during sweeping operations.

[0029] like Figure 2 As shown, Figure 2 This is a flowchart of an intelligent matching control method for negative pressure and rotation speed in the air duct of a sweeper truck, provided by an embodiment of the present invention. The intelligent matching control method for negative pressure and rotation speed in the air duct of a sweeper truck includes the following steps: 201. Determine the target pressure parameters corresponding to the current operating mode.

[0030] In this embodiment of the invention, the above-mentioned intelligent matching control method for negative pressure and speed of the sweeper duct can be applied to the intelligent matching control system for negative pressure and speed of the sweeper duct. The intelligent matching control system for negative pressure and speed of the sweeper duct has functions such as duct speed data processing, duct speed data transmission and reception, and duct speed data memory storage. It can be built based on a server or server cluster. The server or server cluster can be an electronic device with duct speed data processing capability.

[0031] The aforementioned current operating mode refers to the corresponding working state selected by the sweeper truck during actual operation based on current sweeping needs, suction intensity requirements, or operating conditions. It characterizes the target negative pressure control level that the current duct system needs to achieve. This current operating mode can be any of the following: energy-saving operating mode, standard operating mode, heavy-duty operating mode, or custom operating mode, or other mode types categorized according to operating intensity, operating environment, or suction needs. Different current operating modes correspond to different suction needs and duct negative pressure requirements. Therefore, the intelligent matching control system for the sweeper truck's duct negative pressure and speed can first identify or determine the current operating mode during actual operation, and then perform subsequent pressure detection and speed adjustment around the control target corresponding to that operating mode.

[0032] The aforementioned target pressure parameter can refer to a target negative pressure value, target negative pressure range, or target pressure control range set corresponding to the current operating mode. It characterizes the target pressure state that the duct system should achieve or maintain under the current operating mode. This target pressure parameter can be a parameter pre-stored in the control device, a parameter retrieved based on the current operating mode, or a corresponding parameter from a set of mode pressure parameters pre-set based on the vehicle's operational requirements. In this embodiment, the aforementioned target pressure parameter is preferably used to characterize the target negative pressure requirement of the duct system under the current mode. That is, the intelligent matching control system for the sweeper truck's duct negative pressure and rotation speed subsequently adjusts the fan speed not directly with a fixed rotation speed value as the control endpoint, but rather with the goal of ensuring that the current duct pressure parameter reaches the aforementioned target pressure parameter.

[0033] 202. Obtain the current pressure parameters of the air duct.

[0034] In this embodiment of the invention, the aforementioned current pressure parameter refers to the current pressure state parameter of the duct, which is detected in real time by a pressure detection unit installed on the duct and is used to characterize the negative pressure state actually formed by the duct system at the current moment. The aforementioned current pressure parameter can be a pressure detection value at a single moment, or it can be a current pressure value after acquisition and processing; it can be a parameter corresponding to a directly detected pressure signal, or it can be a pressure parameter used for control judgment obtained after conversion, transformation, or processing based on the pressure signal. Since the sweeper truck is affected by factors such as changes in duct resistance, garbage load, road surface environment, and fan operating status during actual operation, the actual pressure state inside the duct is not constant. Therefore, it is necessary to continuously or periodically obtain the current pressure parameter through the aforementioned pressure detection process as a basis for subsequent adjustment of the fan speed.

[0035] 203. When the current pressure parameter does not meet the target pressure parameter, adjust the fan speed so that the current pressure parameter meets the target pressure parameter.

[0036] In this embodiment of the invention, after the intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's duct obtains the current pressure parameter of the duct, it compares the current pressure parameter with the target pressure parameter. When the current pressure parameter does not meet the target pressure parameter, it indicates that the current negative pressure state of the duct has not yet reached the target requirement corresponding to the current operating mode. At this time, the intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's duct adjusts the fan speed to make the current pressure parameter of the duct approach the pressure state corresponding to the target pressure parameter.

[0037] Specifically, the aforementioned intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's ductwork determines the corresponding rotation speed adjustment strategy based on the deviation between the current pressure parameter and the target pressure parameter, and generates corresponding rotation speed adjustment commands to control the fan speed for adjustment. As the fan speed changes, the negative pressure state within the ductwork changes accordingly, gradually ensuring that the current pressure parameter meets the target pressure parameter. Through this method, fan speed adjustment based on the actual pressure state of the ductwork can be achieved, establishing a corresponding matching relationship between the ductwork negative pressure and the fan speed. This improves the stability of negative pressure control and the adaptability to different operating modes.

[0038] 204. When the current pressure parameters meet the target pressure parameters, maintain the corresponding fan speed.

[0039] In this embodiment of the invention, when the intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's duct determines that the current pressure parameter meets the target pressure parameter, it indicates that the current duct negative pressure state has reached the target requirement corresponding to the current operating mode. At this time, the corresponding fan speed is maintained. Specifically, the corresponding fan speed can be the current fan speed at which the current pressure parameter reaches the target pressure parameter. After determining that the pressure has met the target, the intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's duct maintains the fan speed unchanged, so that the duct negative pressure state remains stable.

[0040] By using the above method, once the current pressure parameters meet the target pressure parameters, the fan speed will no longer be adjusted, but will be maintained in the current matching state. This helps to avoid frequent changes in fan speed, improve the stability of duct negative pressure control, and also helps to reduce unnecessary energy consumption and operating noise.

[0041] In this embodiment of the invention, the target pressure parameter corresponding to the current operating mode is determined; the current pressure parameter of the air duct is obtained; when the current pressure parameter does not meet the target pressure parameter, the fan speed is adjusted so that the current pressure parameter meets the target pressure parameter; when the current pressure parameter meets the target pressure parameter, the corresponding fan speed is maintained. Through the above method, intelligent matching control of the air duct negative pressure and the fan speed is achieved, which is beneficial to improving the operational adaptability and stability of the sweeper truck under different operating modes.

[0042] Optionally, in the step of determining the target pressure parameter corresponding to the current operating mode, the current operating mode may also be obtained; the target control requirement type corresponding to the current operating mode may be identified; and the corresponding target pressure parameter may be obtained by matching from the preset mode parameter correspondence based on the target control requirement type.

[0043] In this embodiment of the invention, the aforementioned target control requirement type can refer to the requirement category corresponding to the negative pressure control of the air duct under the current operating mode, used to characterize the control target level that the air duct system needs to achieve under this operating mode. Specifically, different operating modes may correspond to different cleaning intensity, adsorption capacity requirements, and operational focuses. Therefore, the control requirements corresponding to each operating mode can be further summarized into different target control requirement types. For example, the energy-saving operating mode corresponds to the energy-saving control requirement type with lower negative pressure requirements, the standard operating mode corresponds to the standard control requirement type with conventional negative pressure requirements, the heavy-duty operating mode corresponds to the enhanced control requirement type with higher negative pressure requirements, and the custom operating mode can correspond to the manually set custom control requirement type.

[0044] The aforementioned preset mode parameter correspondence refers to the pre-established and stored correspondence between operating modes, target control requirement types, and target pressure parameters. Specifically, based on the expected operating requirements of the sweeper truck under different operating modes, the negative pressure requirement of the air duct, and the operating characteristics of the fan, target pressure parameters corresponding to different target control requirement types can be pre-set. For example, a correspondence of "energy-saving control requirement type - first target pressure parameter," "standard control requirement type - second target pressure parameter," and "enhanced control requirement type - third target pressure parameter" can be pre-established and stored in the control device or server for subsequent retrieval. It should be noted that the aforementioned target pressure parameter can be a specific target pressure value, or a target pressure range or target pressure interval.

[0045] In one possible embodiment, the intelligent matching control system for the negative pressure and speed of the sweeper truck's duct can analyze and judge the currently acquired operating mode to determine the target control requirement type to which the operating mode belongs. Specifically, when the intelligent matching control system for the negative pressure and speed of the sweeper truck's duct receives a mode selection signal, a mode status signal, or operating mode input information, it can first determine which operating mode is currently in operation, and then determine the target control requirement type corresponding to that operating mode according to a pre-set mode classification rule.

[0046] For example, when the current operating mode is identified as an energy-saving operating mode, the corresponding target control requirement type is determined to be an energy-saving control requirement type; when the current operating mode is identified as a high-intensity operating mode, the corresponding target control requirement type is determined to be an enhanced control requirement type.

[0047] In another possible embodiment, the intelligent matching control system for the negative pressure and rotation speed of the sweeper duct will perform a lookup or correlation judgment between the identified target control demand type and the preset mode parameter correspondence to determine the target pressure parameter corresponding to the target control demand type. Specifically, the intelligent matching control system for the negative pressure and rotation speed of the sweeper duct can read a pre-stored mode parameter correspondence table, parameter mapping set, or parameter configuration rules, and search for the parameter item that matches the current target control demand type to obtain the corresponding target pressure parameter.

[0048] For example, when the target control requirement type is identified as a standard control requirement type, the intelligent matching control system for the negative pressure and speed of the sweeper truck's ductwork finds the target pressure parameter corresponding to the standard control requirement type in the preset mode parameter correspondence, and outputs this target pressure parameter as the target pressure parameter for the current operating mode, which is used for subsequent duct pressure judgment and fan speed adjustment. Through this matching process, the determination of the target pressure parameter can correspond to the actual control requirements of the current operating mode.

[0049] Through the above-described method and steps, the intelligent matching control system for the negative pressure and speed of the sweeper truck's ductwork, after acquiring the current operating mode, first identifies the type of target control requirement corresponding to that operating mode, and then matches the corresponding target pressure parameter according to the preset mode parameter correspondence, thereby completing the determination of the target pressure parameter. This implementation method makes the determination process of target pressure parameters under different operating modes clearer, which helps improve the accuracy of the correspondence between the operating mode and the pressure control target, and provides a clear pressure control basis for subsequent fan speed adjustment.

[0050] Optionally, the step of obtaining the current pressure parameters of the air duct may further include collecting pressure status information within the air duct through a pressure detection unit installed on the air duct; and determining the current pressure parameters of the air duct based on the pressure status information.

[0051] In this embodiment of the invention, the aforementioned pressure detection unit refers to a functional unit installed on the air duct of the sweeper truck for detecting the internal pressure state of the air duct. The pressure detection unit can be a pressure sensor, negative pressure sensor, pressure transmitter, or other detection device capable of characterizing pressure changes within the air duct. It can also be a pressure detection structure composed of a detection device, a signal output interface, and connecting lines. The pressure detection unit can be located on the air duct body or at a detection location communicating with the interior of the air duct. Its main function is to collect the actual pressure state formed within the air duct and output detection information corresponding to that pressure state. In other words, the pressure detection unit can be understood as a fundamental detection component for the intelligent matching control system of negative pressure and rotational speed in the sweeper truck's air duct to obtain the actual pressure state of the air duct, and its detection results can serve as a source for subsequently determining the current pressure parameters.

[0052] The aforementioned pressure status information can refer to the detection information collected by the pressure detection unit, used to characterize the current pressure status inside the duct. It can be a voltage signal, current signal, digital signal, or other form of detection signal directly output by the pressure detection unit, or it can be information that, after conversion, reflects the magnitude of pressure, the strength of negative pressure, or the trend of pressure change within the duct. It is understood that the aforementioned pressure status information reflects the actual current pressure status of the duct, and the current pressure parameters are control parameters formed based on this, used for comparison and judgment with the target pressure parameters.

[0053] In practical implementation, the aforementioned intelligent matching control system for the negative pressure and rotational speed of the sweeper truck's ductwork collects the current pressure status inside the ductwork through a pressure detection unit installed on the duct, obtaining corresponding pressure status information. Then, based on the collected pressure status information, the intelligent matching control system determines the current pressure parameters of the ductwork. For example, the detection information output by the pressure detection unit can be read, parsed, converted, or transformed to obtain current pressure parameters that reflect the current negative pressure state of the ductwork.

[0054] Through the above methods and steps, the intelligent matching control system for the negative pressure and speed of the sweeper duct can detect the internal pressure state of the duct based on the pressure detection unit, and determine the current pressure parameters based on the detected pressure state information. This helps to improve the pertinence and reliability of duct pressure acquisition, and provides an accurate parameter basis for the matching control of duct negative pressure and fan speed.

[0055] Optionally, the step of adjusting the fan speed to make the current pressure parameter meet the target pressure parameter when the current pressure parameter does not meet the target pressure parameter further includes determining a corresponding speed adjustment strategy based on the deviation relationship between the current pressure parameter and the target pressure parameter; generating a corresponding speed adjustment command based on the speed adjustment strategy; and controlling the fan speed to adjust based on the speed adjustment command.

[0056] In this embodiment of the invention, the aforementioned deviation relationship refers to the difference between the current pressure parameter and the target pressure parameter, used to characterize the degree of deviation between the current duct pressure state and the target pressure state. Specifically, the intelligent matching control system for the negative pressure and rotational speed of the sweeper duct can compare the current pressure parameter with the target pressure parameter to obtain the parameter difference between the two, and determine the deviation direction and magnitude based on the parameter difference. The deviation direction characterizes whether the current pressure parameter is lower or higher than the target pressure parameter, and the deviation magnitude characterizes the degree of difference between the current pressure parameter and the target pressure parameter.

[0057] The aforementioned speed regulation strategy refers to the fan speed adjustment method determined based on the deviation relationship. Specifically, after determining the deviation relationship, the intelligent matching control system for the negative pressure and speed of the sweeper truck's duct can first determine the fan speed adjustment type according to the direction of the deviation; for example, when the current pressure parameter is lower than the target pressure parameter, an acceleration regulation strategy is determined, and when the current pressure parameter is higher than the target pressure parameter, a deceleration regulation strategy is determined. Then, the corresponding speed regulation range is determined according to the magnitude of the deviation; for example, when the deviation is large, a larger speed regulation range is determined, and when the deviation is small, a smaller speed regulation range is determined. Thus, a speed regulation strategy corresponding to the current pressure state can be obtained.

[0058] The aforementioned speed adjustment command can refer to a control command generated based on a speed adjustment strategy, used to control changes in the fan speed. Specifically, the intelligent matching control system for the negative pressure and speed of the sweeper duct can generate a corresponding speed adjustment command based on the determined speed adjustment type and speed adjustment range, and send the speed adjustment command to the fan control terminal to control the fan to adjust its speed according to the corresponding adjustment direction and adjustment range.

[0059] By using the above method, the adjustment process of the fan speed can be made to correspond with the deviation between the current pressure parameter and the target pressure parameter, so that the current pressure parameter of the air duct gradually meets the target pressure parameter.

[0060] Optionally, the step of determining the corresponding speed regulation strategy based on the deviation relationship between the current pressure parameter and the target pressure parameter further includes determining the corresponding speed increase regulation strategy when the current pressure parameter is lower than the target pressure parameter; determining the corresponding speed decrease regulation strategy when the current pressure parameter is higher than the target pressure parameter; and determining the corresponding speed regulation range based on the magnitude of the deviation between the current pressure parameter and the target pressure parameter.

[0061] In this embodiment of the invention, the intelligent matching control system for the negative pressure and rotation speed of the sweeper truck's duct can first compare the current pressure parameter with the target pressure parameter. When the current pressure parameter is lower than the target pressure parameter, it indicates that the current duct negative pressure has not yet reached the target requirement corresponding to the current operating mode. At this time, a corresponding speed-up adjustment strategy is determined to enhance the fan's suction capacity by increasing the fan speed, so that the negative pressure state in the duct approaches the pressure state corresponding to the target pressure parameter. When the current pressure parameter is higher than the target pressure parameter, it indicates that the current duct negative pressure is higher than the target requirement corresponding to the current operating mode. At this time, a corresponding speed-down adjustment strategy is determined to reduce the fan's output capacity by decreasing the fan speed, so that the current duct pressure parameter returns to the target pressure parameter.

[0062] The aforementioned speed adjustment range refers to the specific amount by which the fan speed needs to be increased or decreased after determining the speed increase or decrease adjustment strategy, used to characterize the degree of change in the fan speed adjustment. This speed adjustment range can be a fixed adjustment amount or a variable adjustment amount set according to the magnitude of the deviation. In this embodiment, the intelligent matching control system for the negative pressure and speed of the sweeper's duct can determine the corresponding speed adjustment range based on the deviation between the current pressure parameter and the target pressure parameter. That is, when the difference between the current pressure parameter and the target pressure parameter is large, a larger speed adjustment range is determined to improve adjustment efficiency; when the difference between the current pressure parameter and the target pressure parameter is small, a smaller speed adjustment range is determined to improve adjustment accuracy and avoid significant fluctuations in duct pressure caused by excessive changes in fan speed.

[0063] Through the above methods and steps, the intelligent matching control system for the negative pressure and speed of the sweeper truck's duct combines the determined adjustment direction with the determined speed adjustment range to form a corresponding speed adjustment strategy, and generates a corresponding speed adjustment command accordingly to control the fan speed for adjustment. This ensures that the fan speed adjustment process corresponds not only to the high-low relationship between the current pressure parameter and the target pressure parameter, but also to the degree of difference between the two, thereby improving the targeting and stability of the duct negative pressure adjustment process.

[0064] Optionally, in the step of determining the corresponding speed adjustment range based on the deviation between the current pressure parameter and the target pressure parameter, the step further includes dividing the deviation between the current pressure parameter and the target pressure parameter into a large deviation range and a small deviation range; when the deviation is in the large deviation range, determining a first speed adjustment range; when the deviation is in the small deviation range, determining a second speed adjustment range, wherein the first speed adjustment range is greater than the second speed adjustment range.

[0065] In this embodiment of the invention, the aforementioned large deviation range refers to the deviation range between the current pressure parameter and the target pressure parameter that is higher than the deviation range corresponding to a preset grading threshold. This indicates a significant difference between the current duct pressure state and the target pressure state, requiring a relatively large adjustment to the fan speed. Similarly, the aforementioned small deviation range refers to the deviation range between the current pressure parameter and the target pressure parameter that is lower than or equal to the deviation range corresponding to a preset grading threshold. This indicates that the current duct pressure state is already close to the target pressure state, requiring only a minor correction to the fan speed.

[0066] Specifically, the intelligent matching control system for the negative pressure and rotational speed of the sweeper truck's ductwork first calculates the deviation between the current pressure parameter and the target pressure parameter, and obtains the magnitude of this deviation. Then, it compares this deviation magnitude with a preset grading threshold. When the deviation magnitude is greater than the preset grading threshold, it is determined that the deviation is in the large deviation range; when the deviation magnitude is less than or equal to the preset grading threshold, it is determined that the deviation is in the small deviation range. The preset grading threshold can be preset according to the pressure control accuracy requirements of the sweeper truck's ductwork system, the fan speed regulation response characteristics, and the actual operating conditions, thus adapting the deviation range division to the actual control needs.

[0067] The aforementioned first speed adjustment range can refer to the amount of fan speed adjustment used when the deviation is in the large deviation range. It is used to characterize the large adjustment required for the fan speed when the current pressure parameter is significantly different from the target pressure parameter.

[0068] The aforementioned second speed adjustment range can refer to the amount of fan speed adjustment used when the deviation is in the small deviation range. It is used to characterize the small adjustment that the fan speed needs to be made when the difference between the current pressure parameter and the target pressure parameter is small.

[0069] Since a large deviation range corresponds to a significant pressure deviation, and a small deviation range corresponds to a relatively small pressure deviation, the first speed adjustment range is larger than the second speed adjustment range. In other words, when the current pressure in the duct differs significantly from the target pressure, a larger speed adjustment is used to improve pressure correction efficiency; when the current pressure in the duct is close to the target pressure, a smaller speed adjustment is used to improve adjustment accuracy and reduce pressure fluctuations.

[0070] In the specific implementation process, when the intelligent matching control system for the negative pressure and speed of the sweeper's air duct determines that the deviation is in the large deviation range, it determines the first speed adjustment range and adjusts the fan speed accordingly based on the first speed adjustment range; when the deviation is determined to be in the small deviation range, it determines the second speed adjustment range and adjusts the fan speed accordingly based on the second speed adjustment range.

[0071] By using the above methods and steps, the fan speed adjustment process can correspond to the degree to which the current pressure parameter deviates from the target pressure parameter, thereby taking into account both pressure regulation efficiency and pressure regulation accuracy. This is beneficial to improving the stability and adaptability of the duct negative pressure and fan speed matching control process.

[0072] like Figure 3 As shown, this embodiment of the invention also provides an intelligent matching control device 300 for the negative pressure and rotation speed of a sweeper truck's duct. This intelligent matching control device 300 for the negative pressure and rotation speed of the sweeper truck's duct includes: The first determining module 301 is used to determine the target pressure parameters corresponding to the current operating mode; The first acquisition module 302 is used to acquire the current pressure parameters of the air duct; The first adjustment module 303 is used to adjust the fan speed when the current pressure parameter does not meet the target pressure parameter, so that the current pressure parameter meets the target pressure parameter; The holding module 304 is used to maintain the corresponding fan speed when the current pressure parameter meets the target pressure parameter.

[0073] Optionally, the first determining module 301 mentioned above includes: The first determination submodule is used to obtain the current job mode; The second determining submodule is used to identify the target control requirement type corresponding to the current operation mode; The third determining submodule is used to match the corresponding target pressure parameters from a preset mode parameter correspondence based on the target control requirement type.

[0074] Optionally, the first acquisition module 302 mentioned above includes: The first acquisition submodule is used to collect pressure status information inside the air duct through a pressure detection unit set on the air duct. The second acquisition submodule is used to determine the current pressure parameters of the air duct based on the pressure status information.

[0075] Optionally, the first adjustment module 303 mentioned above includes: The first adjustment submodule is used to determine the corresponding speed adjustment strategy based on the deviation relationship between the current pressure parameter and the target pressure parameter; The second adjustment submodule is used to generate a corresponding speed adjustment command according to the speed adjustment strategy. The third adjustment submodule is used to control the fan speed to adjust based on the speed adjustment command.

[0076] Optionally, the first adjustment submodule mentioned above includes: The first adjustment unit is used to determine a corresponding speed-up adjustment strategy when the current pressure parameter is lower than the target pressure parameter; The second adjustment unit is used to determine a corresponding deceleration adjustment strategy when the current pressure parameter is higher than the target pressure parameter; The third adjustment unit is used to determine the corresponding speed adjustment range based on the deviation between the current pressure parameter and the target pressure parameter.

[0077] Optionally, the third adjustment unit mentioned above includes: The first adjustment subunit is used to divide the deviation between the current pressure parameter and the target pressure parameter into a large deviation range and a small deviation range. The second adjustment subunit is used to determine the first speed adjustment range when the deviation is in the large deviation range; The third adjustment subunit is used to determine the second speed adjustment range when the deviation is within the small deviation range, wherein the first speed adjustment range is greater than the second speed adjustment range.

[0078] like Figure 4 As shown, this embodiment of the invention also provides an electronic device 400, including a processor, which can execute any of the above-mentioned intelligent matching control methods for negative pressure and rotation speed of the sweeper duct.

[0079] Specifically, it includes a processor 401 and a memory 402, as well as a computer program stored in the memory 402 and capable of running on the processor 401, which executes an intelligent matching control method for the negative pressure and rotation speed of the sweeper truck's duct, wherein: The processor 401 executes the calculator program stored in the memory 402, which describes an intelligent matching control method for the negative pressure and rotation speed of the sweeper truck's air duct, and performs the following steps: Determine the target pressure parameters corresponding to the current operating mode; Obtain the current pressure parameters of the air duct; When the current pressure parameter does not meet the target pressure parameter, the fan speed is adjusted so that the current pressure parameter meets the target pressure parameter; When the current pressure parameter meets the target pressure parameter, maintain the corresponding fan speed.

[0080] Optionally, the processor 401 performs the process of determining the target pressure parameters corresponding to the current operating mode, including: Get the current job mode; Identify the target control requirement type corresponding to the current operation mode; Based on the target control requirement type, the corresponding target pressure parameter is obtained by matching from the preset mode parameter correspondence.

[0081] Optionally, the processor 401 performs the process of acquiring the current pressure parameters of the air duct, including: Pressure status information within the air duct is collected by a pressure detection unit installed on the air duct. Based on the pressure status information, the current pressure parameters of the air duct are determined.

[0082] Optionally, the processor 401 executes the step of adjusting the fan speed when the current pressure parameter does not meet the target pressure parameter, so that the current pressure parameter meets the target pressure parameter, including: Based on the deviation between the current pressure parameter and the target pressure parameter, a corresponding speed adjustment strategy is determined; Generate a corresponding speed adjustment command based on the speed adjustment strategy; Based on the speed adjustment command, the fan speed is controlled to be adjusted.

[0083] Optionally, the processor 401 executes the step of determining a corresponding speed regulation strategy based on the deviation relationship between the current pressure parameter and the target pressure parameter, including: When the current pressure parameter is lower than the target pressure parameter, a corresponding speed-up adjustment strategy is determined; When the current pressure parameter is higher than the target pressure parameter, a corresponding deceleration adjustment strategy is determined; The corresponding speed adjustment range is determined based on the deviation between the current pressure parameter and the target pressure parameter.

[0084] Optionally, the processor 401 performs the step of determining the corresponding speed adjustment range based on the deviation between the current pressure parameter and the target pressure parameter, including: The deviation between the current pressure parameter and the target pressure parameter is divided into a large deviation range and a small deviation range; When the deviation is within the large deviation range, a first speed adjustment range is determined; When the deviation is within the small deviation range, a second speed adjustment range is determined, wherein the first speed adjustment range is greater than the second speed adjustment range.

[0085] This invention also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the intelligent matching control method for negative pressure and speed of the sweeper duct provided in this invention, or the intelligent matching control method for negative pressure and speed of the sweeper duct in the application end, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0086] Those skilled in the art will understand that implementing all or part of the processes in the above embodiments can be done by a computer program instructing related hardware, and can be stored in a computer-readable storage medium. When executed, the program can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0087] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for intelligent matching and control of negative pressure and rotational speed in the air duct of a sweeper truck, characterized in that, include: Determine the target pressure parameters corresponding to the current operating mode; Obtain the current pressure parameters of the air duct; When the current pressure parameter does not meet the target pressure parameter, the fan speed is adjusted so that the current pressure parameter meets the target pressure parameter; When the current pressure parameter meets the target pressure parameter, maintain the corresponding fan speed. The step of adjusting the fan speed when the current pressure parameter does not meet the target pressure parameter, so that the current pressure parameter meets the target pressure parameter, includes: Based on the deviation between the current pressure parameter and the target pressure parameter, a corresponding speed adjustment strategy is determined; Generate a corresponding speed adjustment command based on the speed adjustment strategy; Based on the speed adjustment command, the fan speed is adjusted. The step of determining the corresponding speed adjustment strategy based on the deviation relationship between the current pressure parameter and the target pressure parameter includes: When the current pressure parameter is lower than the target pressure parameter, a corresponding speed-up adjustment strategy is determined; When the current pressure parameter is higher than the target pressure parameter, a corresponding deceleration adjustment strategy is determined; Based on the deviation between the current pressure parameter and the target pressure parameter, the corresponding speed adjustment range is determined; The step of determining the corresponding speed adjustment range based on the deviation between the current pressure parameter and the target pressure parameter includes: The deviation between the current pressure parameter and the target pressure parameter is divided into a large deviation range and a small deviation range; When the deviation is within the large deviation range, a first speed adjustment range is determined; When the deviation is within the small deviation range, a second speed adjustment range is determined, wherein the first speed adjustment range is greater than the second speed adjustment range.

2. The intelligent matching control method for negative pressure and rotation speed of the sweeper truck's air duct as described in claim 1, characterized in that, Determining the target pressure parameters corresponding to the current operating mode includes: Get the current job mode; Identify the target control requirement type corresponding to the current operation mode; Based on the target control requirement type, the corresponding target pressure parameter is obtained by matching from the preset mode parameter correspondence.

3. The intelligent matching control method for negative pressure and rotation speed of the sweeper truck's air duct as described in claim 1, characterized in that, The acquisition of the current pressure parameters of the air duct includes: Pressure status information within the air duct is collected by a pressure detection unit installed on the air duct. Based on the pressure status information, the current pressure parameters of the air duct are determined.

4. An intelligent matching control device for the negative pressure and rotation speed of a sweeper truck's duct, realizing the intelligent matching control method for the negative pressure and rotation speed of a sweeper truck's duct as described in claim 1, characterized in that, include: The first determining module is used to determine the target pressure parameters corresponding to the current operating mode; The first acquisition module is used to acquire the current pressure parameters of the air duct; The first adjustment module is used to adjust the fan speed when the current pressure parameter does not meet the target pressure parameter, so that the current pressure parameter meets the target pressure parameter; The holding module is used to maintain the corresponding fan speed when the current pressure parameter meets the target pressure parameter.

5. An intelligent matching control system for negative pressure and rotation speed in the air duct of a sweeper truck, characterized in that, The intelligent matching control system for negative pressure and speed of the sweeper duct includes: an intelligent matching control device for negative pressure and speed of the sweeper duct. The intelligent matching control device for the negative pressure and rotation speed of the sweeper duct implements the intelligent matching control method for the negative pressure and rotation speed of the sweeper duct as described in claim 1.

6. An electronic device, characterized in that, include: The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps in the intelligent matching control method for negative pressure and rotational speed of the sweeper duct as described in any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps in the intelligent matching control method for negative pressure and rotational speed of the sweeper duct as described in any one of claims 1 to 4.

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