Residual material treatment method of concrete mixer truck and concrete mixer truck

Abstract

The invention relates to a residual material treatment method of a concrete mixer truck and the concrete mixer truck, the method comprises the steps that when the concrete mixer truck reaches a cleaning position and triggers a cleaning mode, cleaning parameters are obtained, the cleaning parameters comprise a plurality of steps, and each step comprises the rotating direction, the rotating speed and the rotating duration of a mixing drum of the concrete mixer truck; in the cleaning process, the stirring barrel is controlled to rotate according to the cleaning parameters; and after cleaning is finished, the cleaning effect of the cleaning parameters is evaluated according to the residual quantity data of the concrete in the mixing drum. According to the technical scheme, in the cleaning process of the stirring barrel, cleaning can be automatically completed according to multiple steps of the cleaning parameters, the cleaning effect is automatically evaluated, the cleaning mode is more scientific and flexible, the cleaning effect and the cleaning efficiency can be guaranteed, meanwhile, a quantitative evaluation result can be provided for a user, and the user experience is improved. And therefore, cleaning parameters can be selected as reference.

Description

Technical Field

[0001] This application relates to the field of engineering equipment technology, specifically to a method for handling residual materials from a concrete mixer truck and the concrete mixer truck itself. Background Technology

[0002] After unloading, a small amount of concrete remains inside the mixing drum of a concrete mixer truck, known as residual material. This residual concrete hardens into solidified blocks, and a large amount of solidified concrete blocks inside the mixing drum reduces its usable volume. Therefore, it is necessary to promptly remove the residual material from the mixing drum during use.

[0003] In related technologies, when concrete mixer trucks return to the mixing plant, they are cleaned manually or using the same parameters throughout the process. This not only results in low cleaning efficiency and poor cleaning effect, but also fails to evaluate the cleaning effect, thus preventing the cleaning effect from being effectively improved. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a method for handling residual materials in a concrete mixer truck. The concrete mixer truck, during the cleaning process of the mixing drum, can automatically complete the cleaning process according to multiple steps of cleaning parameters and automatically evaluate the cleaning effect. This not only makes the cleaning method more scientific and flexible, but also ensures the cleaning effect and efficiency, while providing users with quantitative evaluation results for reference in selecting cleaning parameters.

[0005] To solve the above-mentioned technical problems, this application provides a method for handling residual materials from concrete mixer trucks, including: When the concrete mixer truck arrives at the cleaning position and triggers the cleaning mode, it acquires cleaning parameters. The cleaning parameters include multiple steps, each of which includes the rotation direction, rotation speed and rotation duration of the mixing drum of the concrete mixer truck. During the cleaning process, the stirring drum is controlled to rotate according to the cleaning parameters; After cleaning is completed, the cleaning effect of the cleaning parameters is evaluated based on the residual amount of concrete in the mixing drum.

[0006] In some embodiments, the residual data includes the residual amount before cleaning, the actual residual amount after cleaning, and the target residual amount after cleaning. The evaluation of the cleaning effect of the cleaning parameters based on the residual concrete data in the mixing drum includes at least one of the following: Based on the amount of residue before cleaning and the actual amount of residue after cleaning, the absolute cleaning rate is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the actual residual amount after cleaning and the target residual amount after cleaning, the cleaning achievement rate is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the residual amount before cleaning, the actual residual amount after cleaning, and the total cleaning time, the cleaning rate per unit time is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the residual amount before cleaning, the actual residual amount after cleaning, and the total energy consumption for cleaning, the unit energy consumption cleaning rate is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the absolute cleaning rate, the cleaning achievement rate, the cleaning rate per unit time, and the cleaning rate per unit energy consumption, a cleaning effect score is determined to obtain an evaluation result of the cleaning effect of the cleaning parameters.

[0007] In some embodiments, obtaining the cleaning parameters includes: The cleaning parameters that meet the preset conditions are matched according to the capacity of the stirring tank; The preset conditions include at least one of the following: At least one of the evaluation results for cleaning effectiveness ranked highest; Highest usage rate.

[0008] In some embodiments, obtaining the cleaning parameters includes: Determine whether the self-learning function is currently enabled; If so, obtain the cleaning parameters recommended by the server; If not, retrieve the preset cleaning parameters or the currently input cleaning parameters.

[0009] In some embodiments, the method further includes: After cleaning is completed, the cleaning parameters and the evaluation results of the cleaning effect are sent to the server so that the server can perform data analysis based on the capacity of the mixing tank, the cleaning parameters, and the evaluation results of the cleaning effect. The analysis results are used to form a queryable database and / or recommended cleaning parameters.

[0010] In some embodiments, the method further includes: During the cleaning process, it is determined whether the energy of the concrete mixer truck is lower than a preset energy threshold. If so, control the stirring drum to drain water, and after the drainage reaches the preset time, control the stirring drum to stop rotating and output a prompt message indicating that the cleaning has stopped. If not, when the multiple steps are completed or the cleaning time reaches the preset cleaning time, the stirring drum is controlled to drain water, and after the drainage reaches the preset time, the stirring drum is controlled to rotate at a preset forward speed, and a prompt message indicating that the cleaning is complete is output.

[0011] In some embodiments, before the concrete mixer truck arrives at the cleaning location and triggers the cleaning mode, the method further includes: After the concrete mixer truck unloads, the amount of concrete remaining in the mixing drum and / or the real-time remaining mileage of the concrete mixer truck to the cleaning location are obtained. The rotation sequence of the stirring drum is determined based on the residual amount and / or the real-time remaining mileage, the rotation sequence including forward and reverse rotation parameters within each time unit; During the process of the concrete mixer truck heading to the cleaning location, the mixing drum is controlled to rotate according to the rotation sequence.

[0012] In some embodiments, obtaining the residual amount includes: After the concrete mixer truck unloads, the first loading amount after unloading is obtained based on the driving data of the mixing drum. The residual amount is determined based on the second loading amount before unloading and the first loading amount.

[0013] In some embodiments, determining the rotation sequence of the stirring tank based on the residual amount and / or the real-time remaining mileage includes: Determine the residue grade corresponding to the residual amount; The preset rotation sequence corresponding to the residual material grade is obtained as the rotation sequence of the stirring drum.

[0014] In some embodiments, determining the rotation sequence of the stirring tank based on the residual amount and / or the real-time remaining mileage includes: The residual material impact factor is determined based on the residual amount, and the mileage impact factor corresponding to the current time unit is determined based on the real-time remaining mileage. Based on the residual material influence factor and the mileage influence factor corresponding to the current time unit, determine the forward and reverse rotation parameters within the current time unit in the rotation sequence of the stirring drum.

[0015] In some embodiments, the mileage influence factor corresponding to the current time unit is positively correlated with the real-time remaining mileage; The determination of the residual material impact factor based on the residual amount includes: A first factor value is determined based on the residual amount, wherein the first factor value is positively correlated with the residual amount; The larger of the first factor value and the preset second factor value is taken as the residual material influence factor.

[0016] In some embodiments, determining the forward and reverse rotation parameters within the current time unit in the rotation sequence of the stirring drum based on the residual material influence factor and the mileage influence factor corresponding to the current time unit includes: The reverse rotation speed of the mixing drum within the current time unit is determined based on the residual material influence factor and the mileage influence factor corresponding to the current time unit. The reversal duration of the stirring drum within the current time unit is determined based on the mileage influence factor corresponding to the preset reversal stroke threshold and the current time unit. The forward rotation duration of the stirring drum within the current time unit is determined based on the reversal duration. Based on the reverse rotation speed, the reverse rotation duration, the forward rotation duration, and the forward rotation speed corresponding to the current time unit, the forward and reverse rotation parameters within the current time unit in the rotation sequence of the stirring drum are determined.

[0017] In some embodiments, the mileage influence factor corresponding to the current time unit is positively correlated with the real-time remaining mileage. Determining the reversal speed of the mixing drum within the current time unit based on the residual material influence factor and the mileage influence factor corresponding to the current time unit includes: Based on the residual material influence factor and the mileage influence factor corresponding to the current time unit, the first reversal speed of the stirring drum within the current time unit is determined, wherein the first reversal speed is positively correlated with the residual material influence factor and the mileage influence factor corresponding to the current time unit. The larger of the first reversal speed and the preset second reversal speed is taken as the reversal speed of the stirring drum in the current time unit; The step of determining the reversal duration of the stirring drum within the current time unit based on the preset reversal stroke threshold and the mileage influence factor corresponding to the current time unit includes: The reversal safety factor corresponding to the current time unit is determined based on the mileage influence factor corresponding to the current time unit, wherein the reversal safety factor is negatively correlated with the mileage influence factor; The reversal duration within the current time unit is determined based on the reversal safety factor and the preset reversal travel threshold, wherein the reversal duration and the reversal safety factor are positively correlated.

[0018] This application also provides a concrete mixer truck, including a controller configured to perform the steps of the method described above.

[0019] This application also provides an electronic device, including a storage medium and a controller, wherein a computer program is stored on the storage medium, and the computer program, when executed by the controller, implements the steps of the method described above.

[0020] This application also provides a storage medium storing a computer program, which, when executed by a processor, implements the steps of the method described above.

[0021] This application discloses a method for handling residual concrete from a concrete mixer truck and the concrete mixer truck itself. The method includes: when the concrete mixer truck arrives at a cleaning position and triggers a cleaning mode, acquiring cleaning parameters, which include multiple steps, each step including the rotation direction, rotation speed, and rotation duration of the mixing drum of the concrete mixer truck; during the cleaning process, controlling the rotation of the mixing drum according to the cleaning parameters; and after cleaning, evaluating the cleaning effect of the cleaning parameters based on the amount of residual concrete in the mixing drum. The technical solution of this application can automatically complete the cleaning process according to multiple steps of the cleaning parameters and automatically evaluate the cleaning effect. This not only makes the cleaning method more scientific and flexible but also ensures cleaning effect and efficiency, while providing users with quantitative evaluation results for reference in selecting cleaning parameters. Attached Figure Description

[0022] Figure 1 This is a schematic flowchart illustrating a method for handling residual materials from a concrete mixer truck according to one embodiment.

[0023] Figure 2 This is a schematic flowchart illustrating a method for handling residual materials from a concrete mixer truck, according to another embodiment.

[0024] Figure 3 This is a schematic diagram of the structure of an electronic device according to one embodiment. Detailed Implementation

[0025] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. In this application, "each" includes one or more items.

[0027] Figure 1This is a schematic flowchart illustrating a method for handling residual materials from a concrete mixer truck according to one embodiment. Figure 1 As shown, the method for handling residual material from a concrete mixer truck according to this application includes: S1, When the concrete mixer truck arrives at the cleaning position and triggers the cleaning mode, the cleaning parameters are obtained. The cleaning parameters include multiple steps, each of which includes the rotation direction, rotation speed and rotation duration of the mixing drum. The concrete mixer truck can be cleaned at the mixing plant or at a specific cleaning station. Once the concrete mixer truck arrives at the cleaning location, the cleaning mode is triggered by manually or automatically connecting the water inlet on the truck to the water outlet of the cleaning device, and water is then injected into the mixing drum.

[0028] In some embodiments, the cleaning parameters are shown in Table 1. The number of steps indicates the order in which the steps are executed. Each step includes the rotation direction, rotation speed and rotation duration of the stirring drum. The rotation duration is also the cleaning duration of that step. By setting multiple steps, the cleaning effect can be improved.

[0029] Table 1. Cleaning parameters

[0030] In some embodiments, adjacent steps rotate in different directions, thereby alternating between forward and reverse rotation to assist the water flow in impacting the material during the cleaning process, achieving a better cleaning effect. In some embodiments, adjacent steps rotate in the same direction but at different speeds, thereby altering the acceleration to assist the water flow in impacting the material, achieving a better cleaning effect. When the rotation direction is reversed, the corresponding rotation time should be shorter than the rotation time for discharging to avoid material leakage.

[0031] S20, during the cleaning process, the stirring drum is controlled to rotate according to the cleaning parameters; The system is considered to be in the cleaning process until multiple steps corresponding to the cleaning parameters are completed or the preset cleaning time is reached. During the cleaning process, the stirring drum is controlled to rotate according to the cleaning parameters.

[0032] S30: After cleaning is completed, the cleaning effect of the cleaning parameters is evaluated based on the residual amount of concrete in the mixing drum.

[0033] The residual data includes the residual amount before cleaning and the actual residual amount after cleaning. By comparing the changes in residual amount before and after cleaning, the cleaning effect of the cleaning parameters used can be evaluated. The residual amount before and after cleaning can be characterized by weight, volume, or other measurable physical quantities. The relationship between the driving data of the mixing drum and the concrete loading is pre-calibrated. Based on the calibrated relationship and the driving data of the mixing drum, the current residual amount can be determined. The driving data of the mixing drum is driving torque / hydraulic pressure.

[0034] In some embodiments, the residual data may also include the target residual amount after cleaning, which refers to the residual amount expected to be achieved after cleaning. By combining the actual residual amount after cleaning with the target residual amount after cleaning, the difference between the actual cleaning effect and the ideal cleaning effect can be evaluated.

[0035] The technical solution of this application can automatically complete the cleaning process of the mixing tank according to multiple steps of the cleaning parameters, and automatically evaluate the cleaning effect. This not only makes the cleaning method more scientific and flexible, but also ensures the cleaning effect and efficiency. At the same time, it can provide users with quantitative evaluation results for reference in the selection of cleaning parameters.

[0036] In some embodiments, step S30 involves evaluating the cleaning effect of the cleaning parameters based on the residual concrete content data in the mixing drum, including at least one of the following: The absolute cleaning rate is determined based on the amount of residue before cleaning and the actual amount of residue after cleaning, so as to obtain the evaluation results of the cleaning effect of the cleaning parameters. Based on the actual residue amount after cleaning and the target residue amount after cleaning, the cleaning achievement rate is determined to obtain the evaluation results of the cleaning effect of the cleaning parameters. Based on the amount of residue before cleaning, the actual amount of residue after cleaning, and the total cleaning time, the cleaning rate per unit time is determined to obtain the evaluation results of the cleaning effect of the cleaning parameters. Based on the amount of residue before cleaning, the actual amount of residue after cleaning, and the total energy consumption of cleaning, the unit energy consumption cleaning rate is determined to obtain the evaluation results of the cleaning effect of the cleaning parameters. The cleaning effect score is determined based on the absolute cleaning rate, cleaning achievement rate, cleaning rate per unit time, and cleaning rate per unit energy consumption, so as to obtain the evaluation result of the cleaning effect of the cleaning parameters.

[0037] The absolute cleaning rate η1 can be expressed as: η1 = (residual amount before cleaning - actual residual amount after cleaning) / residual amount before cleaning * 100%, which is used to indicate the degree of removal of residual concrete.

[0038] The cleaning achievement rate η2 can be expressed as: η2 = (target residue after cleaning - actual residue after cleaning) / target residue after cleaning * 100%, which is used to indicate the degree to which the cleaning target is achieved.

[0039] The cleaning rate α1 per unit time can be expressed as: α1 = (residual amount before cleaning - actual residual amount after cleaning) / total cleaning time, which is used to represent the amount of concrete removed per unit time and reflects the cleaning efficiency of the cleaning parameters.

[0040] The unit energy consumption cleaning rate β1 can be expressed as: β1 = (residual amount before cleaning - actual residual amount after cleaning) / total cleaning energy consumption, which is used to represent the amount of concrete removed per unit energy consumption and reflects the cleaning cost of cleaning parameters. The total cleaning energy consumption includes the amount of vehicle energy used and the amount of water used.

[0041] The cleaning effectiveness score δ can be expressed as: δ = k1*(η1 / η3) + k2*(η2 / η4) + k3*(α1 / α2) + k4*(β1 / β2), where k1, k2, k3, and k4 are preset weights, η3 is the preset absolute cleaning rate, η4 is the preset cleaning achievement rate, α2 is the preset cleaning rate per unit time, and β2 is the preset cleaning rate per unit energy consumption. The preset weights can be default or user-defined.

[0042] By conducting multi-dimensional quantitative evaluation of the cleaning effect of cleaning parameters, we can not only understand the cleaning capability of the cleaning parameters, but also their efficiency and economy. This provides users with more options and better suits the application scenarios of engineering equipment.

[0043] In some embodiments, obtaining cleaning parameters includes: Match the cleaning parameters that meet the preset conditions according to the capacity of the mixing drum; The preset conditions include at least one of the following: The cleaning effect evaluation results must include at least one cleaning parameter that ranks highest. The most frequently used cleaning parameter.

[0044] Different models of concrete mixer trucks may have the same or different capacities. By finding the cleaning parameters based on the capacity of the mixing drum, the cleaning effect of the parameters can be fully utilized. The evaluation results for cleaning effect should include at least one of the following: highest absolute cleaning rate, highest cleaning achievement rate, highest cleaning rate per unit time, highest cleaning rate per unit energy consumption, and highest cleaning effect score. Highest usage rate can be defined as the most frequent use in a recent period, such as the most frequent use in the past week. This usually reflects that the cleaning parameter has a good cleaning effect or better meets the user's needs for cleaning efficiency and economy.

[0045] In some embodiments, obtaining cleaning parameters includes: Determine whether the self-learning function is currently enabled; If so, obtain the cleaning parameters recommended by the server; If not, retrieve the preset cleaning parameters or the currently input cleaning parameters.

[0046] When the concrete mixer truck activates its self-learning function, it can automatically begin cleaning using the optimal cleaning parameters recommended by the server. Similarly, the optimal cleaning parameters can refer to at least one cleaning parameter that ranks highest in the evaluation results of the cleaning effect, or the cleaning parameter with the highest usage rate, thus making the cleaning process more scientific and intelligent.

[0047] When the concrete mixer truck's self-learning function is not enabled, it can automatically start cleaning using preset cleaning parameters, or the user can input cleaning parameters. The user can either directly set the cleaning parameters or select the desired cleaning parameters from a list. The mobile terminal or the concrete mixer truck responds to the user's input and retrieves the input cleaning parameters as the cleaning parameters to be used for this cleaning operation.

[0048] In some embodiments, the method further includes: After cleaning is completed, the cleaning parameters and the evaluation results of the cleaning effect are sent to the server so that the server can perform data analysis based on the capacity of the mixing tank, the cleaning parameters, and the evaluation results of the cleaning effect. The analysis results are used to form a queryable database and / or recommend cleaning parameters.

[0049] After receiving data from the concrete mixer truck, the server analyzes the data and ranks the cleaning effects of cleaning parameters corresponding to the capacity of various mixing drums. For example, the cleaning parameters corresponding to the same capacity mixing drum are sorted according to the highest absolute cleaning rate, the highest cleaning achievement rate, the highest cleaning rate per unit time, the highest cleaning rate per unit energy consumption, the cleaning effect score, and the usage rate, forming a queryable database. And / or, based on the analysis results, the server recommends cleaning parameters as the factory default parameters for the concrete mixer truck, or recommends qualified cleaning parameters when receiving requests from the concrete mixer truck or mobile terminal.

[0050] In some embodiments, to provide users with a more convenient way to interact, interactive operations and viewing of the vehicle's operating status can also be provided through a client on a mobile terminal. In addition, the client responds to user operations by activating / deactivating self-learning or pushing cleaning solutions with the highest usage rate and ratings.

[0051] In some embodiments, the method further includes: During the cleaning process, it is determined whether the energy of the concrete mixer truck is lower than the preset energy threshold. If so, control the mixing drum to drain water, and after the drainage reaches the preset time, control the mixing drum to stop rotating and output a prompt message indicating that the cleaning has stopped. If not, when multiple steps are completed or the preset cleaning time is reached, control the mixing drum to drain water. After the preset drainage time is reached, control the mixing drum to rotate at a preset forward speed and output a prompt message indicating that the cleaning is complete.

[0052] During the cleaning process, the system automatically terminates the process based on the remaining energy of the concrete mixer truck, making it more intelligent. When the concrete mixer truck's energy is insufficient, the mixing drum is controlled to drain water. The drainage time should ensure that the water in the drum is fully drained. After the preset drainage time is reached, the mixing drum stops rotating, and a cleaning termination prompt message is output. When cleaning is terminated, the effectiveness of the cleaning parameters is not evaluated, or the effectiveness of the cleaning parameters is evaluated, and the evaluation result is marked to distinguish it from the evaluation data of a normally completed cleaning process, so that it can be used as parameter data.

[0053] In some implementations, the cleaning parameters and corresponding evaluation data executed when the same volume stops cleaning at different steps are obtained. By analyzing these data, a curve showing the change in cleaning effect of the cleaning parameters with the number of steps is formed. Thus, the curve can reflect the change in effect during the cleaning process, thereby providing a basis for optimizing the cleaning parameters or serving as a reference for users to set the cleaning parameters.

[0054] When the concrete mixer truck has sufficient energy, after multiple steps are completed or the preset cleaning time is reached, the mixing drum is controlled to drain water. The drainage time should ensure that the water in the drum is fully drained. After the preset drainage time is reached, the mixing drum is controlled to rotate at a preset forward speed, and a prompt message indicating that cleaning is complete is output. After cleaning is completed, the cleaning effect is evaluated, and the cleaning parameters and evaluation results are sent to the server.

[0055] Through the above methods, this application possesses a self-detection function for the cleanliness of the mixing drum, achieving quantification of the cleaning effect. It also features a self-learning function for the mixing drum cleaning process, obtaining high-usage, high-efficiency, and most economical cleaning parameters from the server based on the drum's capacity. This digital approach yields more scientific cleaning parameters, improving cleaning efficiency and economic benefits, reducing manual intervention, and making the process more convenient. Furthermore, the self-learning mechanism allows the cleaning function to evolve and be gradually improved based on feedback data, effectively guaranteeing and enhancing the cleaning effect. In addition, this application utilizes multi-step cleaning parameters, making the cleaning process more flexible and allowing for greater exploration possibilities.

[0056] In some embodiments, this application interferes with the concrete solidification process by controlling the forward and reverse rotation sequence of the mixing drum during the process of the concrete mixer truck unloading and heading to the cleaning location, thereby performing preventive anti-solidification treatment in advance. As a result, the cleaning effect can be further improved when the truck arrives at the cleaning location for cleaning. The specific implementation method is described below.

[0057] Figure 2 This is a schematic flowchart illustrating a method for handling residual materials from a concrete mixer truck, according to another embodiment. Figure 2 As shown, the method for handling residual material from a concrete mixer truck according to this application further includes the following steps: S10, after the concrete mixer truck unloads, obtain the amount of concrete remaining in the mixing drum of the concrete mixer truck and / or the real-time remaining mileage of the concrete mixer truck to the cleaning location. The system determines whether a concrete mixer truck is unloading and whether unloading has been completed based on factors such as the truck's speed, the direction of rotation of the mixing drum, and the drum's driving torque / hydraulic pressure. Typically, when the concrete mixer truck is stationary, it unloads by rotating the mixing drum in the opposite direction. As the amount of concrete in the drum decreases, the drum's driving torque / hydraulic pressure decreases and eventually remains within a small range. Therefore, the system can accurately determine whether unloading has been completed based on the truck's speed, the drum's rotation direction, and the drum's driving torque / hydraulic pressure without requiring additional operations or sensors.

[0058] The residual amount of concrete can be characterized by weight, volume, or other measurable physical quantities. After the concrete mixer truck unloads, the initial load after unloading is obtained based on the driving data of the mixing drum. Then, the residual amount is determined by comparing the initial load with the initial load before unloading. The driving data of the mixing drum is the driving torque / hydraulic pressure. The relationship between the driving data of the mixing drum and the concrete load is pre-calibrated. Based on the calibrated relationship and the driving data of the mixing drum, the current load can be determined accordingly. After the concrete mixer truck unloads, the initial load after unloading can be determined based on the driving data of the mixing drum. The initial load before unloading can be determined based on the driving data before unloading. The difference between the initial load and the initial load is the residual amount after the mixing drum unloads.

[0059] The cleaning location for a concrete mixer truck can be either at the batching plant or a specific cleaning station. The real-time remaining mileage for the concrete mixer truck to reach the cleaning location refers to the distance the truck will travel from its current location to the cleaning location. This real-time remaining mileage can be a more precise distance determined by the current navigation route, or an approximate distance determined based on historical routes or mileage. For example, the concrete mixer truck's route from cleaning location A to construction site B is usually relatively fixed, so the mileage is also relatively fixed, such as 20 kilometers. In this case, the real-time remaining mileage can be determined by subtracting the distance traveled from construction site B from 20 kilometers.

[0060] S20, determine the rotation sequence of the mixing drum based on the residual amount and / or real-time remaining mileage, the rotation sequence including forward and reverse rotation parameters within each time unit; The rotation sequence of the stirring drum refers to the set of forward and reverse rotation parameters for each time unit. The time unit is a fixed duration, such as 1 minute or 90 seconds. The rotation sequence can be static, for example, using fixed forward and reverse rotation parameters within each time unit. Alternatively, the rotation sequence can be based on a fixed cycle, for example, every 10 time units constitute a cycle, with different or the same forward and reverse rotation parameters used for each time unit within a cycle. The rotation sequence can also be updated in real time, for example, the forward and reverse rotation parameters for each time unit are updated based on real-time data.

[0061] Determining the rotation sequence of the mixing drum based on the residual amount and / or real-time remaining mileage allows for a better match between the drum's rotation parameters and the actual residual amount. Alternatively, adjusting the rotation sequence as the real-time remaining mileage changes ensures that when the concrete mixer truck reaches the cleaning position, the residual retardant in the mixing drum still maintains good cleaning properties, improving cleaning efficiency. Simultaneously, appropriate forward and reverse rotation parameters during operation can prevent material leakage and improve driving safety.

[0062] S30, during the process of the concrete mixer truck heading to the cleaning location, the mixing drum is controlled to rotate according to the rotation sequence.

[0063] The process of a concrete mixer truck traveling to the cleaning location refers to the period from the completion of unloading until the truck arrives at the cleaning location. In one scenario, the concrete mixer truck may remain at the construction site after unloading; this period can also be considered part of the process of the truck traveling to the cleaning location.

[0064] The technical solution of this application controls the mixing drum to rotate forward and backward based on the residual amount of concrete and / or the real-time remaining mileage during the process of the concrete mixer truck moving to the cleaning location after unloading. This effectively interferes with the concrete solidification process, slows down changes in the adhesiveness of the concrete residue, and improves the cleaning effect. Furthermore, compared to using only forward rotation, combining forward and reverse rotation can impact the residual settling material, effectively slowing down the solidification process. Simultaneously, the reverse rotation mode can be fully utilized during non-unloading phases, avoiding leakage problems caused by reverse rotation.

[0065] In some embodiments, step S20, determining the rotation sequence of the stirring tank based on the residual amount and / or real-time remaining mileage, includes: Determine the residue grade corresponding to the residual amount; Obtain the preset rotation sequence corresponding to the residual material grade as the rotation sequence of the mixing drum.

[0066] The residual material grade is used to characterize the amount of residual material. For example, the residual material grade can be represented by multiple ranges; the larger the amount of residual material, the higher the residual material grade. Different residual material grades are pre-defined with corresponding preset rotation sequences, indicating that the preset rotation sequence is the rotation sequence with better treatment effect under that residual material grade. The rotation sequence determined in this way can be fixed, for example, using fixed forward and reverse rotation parameters in each time unit. The rotation sequence determined in this way can also be based on a fixed cycle period, for example, every 10 time units constitute a cycle, and different or the same forward and reverse rotation parameters are used in each time unit within a cycle.

[0067] In some embodiments, step S20, determining the rotation sequence of the stirring tank based on the residual amount and / or real-time remaining mileage, includes: The residual material impact factor is determined based on the residual amount, and the mileage impact factor corresponding to the current time unit is determined based on the real-time remaining mileage. Based on the residual material influence factor and the mileage influence factor corresponding to the current time unit, determine the forward and reverse rotation parameters within the current time unit in the rotation sequence of the mixing drum.

[0068] As the remaining mileage decreases, the time before the mixing drum needs cleaning also decreases, requiring appropriate treatment of the concrete in the drum to improve cleaning conditions. When the remaining mileage is still relatively large, the concrete can be subjected to appropriate impact to prevent solidification, while simultaneously considering driving safety and energy consumption. Therefore, a mileage influence factor is introduced to adjust the forward and reverse rotation coefficients within each time unit. This, combined with the residual amount, allows for a more scientific and reasonable intervention in the concrete solidification process during the drum's rotation. Using this method, the rotation sequence is updated in real time; that is, the forward and reverse rotation parameters for each time unit are updated based on real-time data.

[0069] In some embodiments, when the concrete mixer truck is used for less than a preset duration, such as less than three months, or less than a preset number of times, such as less than 20 times, or in other cases where the performance is better, the rotation sequence of the mixing drum can be determined solely based on the real-time remaining mileage. Since the residual amount in the mixing drum is usually small in this case, the reference value for setting the forward and reverse rotation parameters is small, and it is not necessary to determine the forward and reverse rotation parameters in conjunction with the residual amount.

[0070] In some embodiments, the mileage influence factor corresponding to the current time unit is positively correlated with the real-time remaining mileage, indicating that the smaller the remaining mileage, the smaller the impact of the mileage on the rotation parameters of the mixing drum. Therefore, the rotation parameters of the mixing drum can be better prepared for the subsequent cleaning. In some embodiments, the mileage influence factor K1 can be expressed as: K1 = 1 - e -a*D0 Where D0 is the real-time remaining mileage and a is a normal number.

[0071] In some embodiments, determining the residual impact factor based on the residual amount includes: The first factor value is determined based on the residual amount, wherein the first factor value is positively correlated with the residual amount; The larger of the first factor value and the preset second factor value is taken as the residual material impact factor.

[0072] The first factor value is positively correlated with the residual amount, and the residual material influence factor is the larger of the first factor value and the preset second factor value. This means that when the residual amount is small, a fixed residual material influence factor can be used; when the residual amount is large, the residual material influence factor increases with the increase of the residual amount. Thus, it can effectively reflect the reference value of the residual amount on the rotation sequence of the stirring drum. In some embodiments, the residual material influence factor K2 can be expressed as: K2=Max(b1,b2+b3*F0), where F0 is the residual amount, and b1, b2, and b3 are positive constants.

[0073] In some embodiments, the forward and reverse rotation parameters within the current time unit in the rotation sequence of the stirring drum are determined based on the residual material influence factor and the mileage influence factor corresponding to the current time unit, including: Determine the reversal speed of the mixing drum within the current time unit based on the residual material influence factor and the mileage influence factor corresponding to the current time unit; The reversal time of the mixing drum within the current time unit is determined based on the preset reversal stroke threshold and the mileage influence factor corresponding to the current time unit. The duration of forward rotation of the mixing drum within the current time unit is determined based on the duration of reverse rotation. Based on the reverse rotation speed, reverse rotation duration, forward rotation duration, and the forward rotation speed corresponding to the current time unit, determine the forward and reverse rotation parameters within the current time unit in the rotation sequence of the stirring drum.

[0074] Since there is no material leakage when the mixing drum rotates forward, in this embodiment, the residual material influence factor and the mileage influence factor corresponding to the current time unit are mainly used to determine the reversal speed and reversal time. Thus, while ensuring that the concrete is impacted by switching between reversal and forward rotation, material leakage is avoided, and a suitable rotation speed is used to ensure driving safety.

[0075] The reversal speed is determined based on the residual material influence factor and the mileage influence factor corresponding to the current time unit. Since the residual material influence factor is related to the amount of residual material, it is a fixed value after the amount of residual material is determined. Therefore, the reversal speed will change with the change of the mileage influence factor corresponding to the current time unit, thus showing a corresponding relationship with the change of the real-time remaining mileage.

[0076] The reversal time is determined based on a preset reversal stroke threshold and the mileage influence factor corresponding to the current time unit. The preset reversal stroke threshold is the maximum rotation stroke (which can be expressed as the number of rotations) that prevents concrete in the mixing drum from overflowing. Once the concrete mixer truck model is determined, the preset reversal stroke threshold is a fixed value. Therefore, the reversal time will change with the mileage influence factor corresponding to the current time unit, thus showing a corresponding relationship with the change in the real-time remaining mileage.

[0077] Once the reverse rotation duration is determined within a unit of time, the forward rotation duration can be determined accordingly. For example, if the reverse rotation takes 20 seconds when the unit of time is 1 minute, then the remaining 40 seconds are forward rotation.

[0078] The forward rotation speed can be selected within a preset speed range, such as 1-3 revolutions per minute. This forward rotation speed will not affect driving safety. The speed can be varied in three levels according to the return mileage. For example, the total mileage can be divided into three segments, with 1 revolution per minute selected for each time unit in the first segment, 2 revolutions per minute in each time unit in the second segment, and 3 revolutions per minute in each time unit in the third segment. Alternatively, the total mileage can be divided into six segments, with 1 revolution per minute in each time unit in the first segment, 2 revolutions per minute in each time unit in the second segment, 3 revolutions per minute in each time unit in the third segment, 1 revolution per minute in each time unit in the fourth segment, 2 revolutions per minute in each time unit in the fifth segment, and 3 revolutions per minute in each time unit in the sixth segment.

[0079] In some embodiments, the mileage influence factor corresponding to the current time unit is positively correlated with the real-time remaining mileage. Determining the reversal speed of the mixing drum within the current time unit based on the residual material influence factor and the mileage influence factor corresponding to the current time unit includes: Based on the residual material influence factor and the mileage influence factor corresponding to the current time unit, the first reversal speed of the mixing drum within the current time unit is determined, wherein the first reversal speed is positively correlated with the residual material influence factor and the mileage influence factor corresponding to the current time unit. The larger of the first reversal speed and the preset second reversal speed is taken as the reversal speed of the stirring drum in the current time unit. Based on the preset reversal stroke threshold and the mileage influence factor corresponding to the current time unit, determine the reversal duration of the mixing drum within the current time unit, including: The reversal safety factor corresponding to the current time unit is determined based on the mileage influence factor corresponding to the current time unit. The reversal safety factor is negatively correlated with the mileage influence factor. The reversal duration within the current time unit is determined based on the reversal safety factor and the preset reversal travel threshold, wherein the reversal duration and the reversal safety factor are positively correlated.

[0080] The first reversal speed is positively correlated with the mileage influence factor; as the remaining mileage decreases, the first reversal speed decreases. Since the reversal speed is the larger of the first reversal speed and the preset second reversal speed, the reversal speed of the stirring drum is greater than or equal to the preset second reversal speed. In some embodiments, the reversal speed V... r It can be represented as: V r =Max(1,3*K1*K2).

[0081] The reversal safety factor is negatively correlated with the mileage influence factor; therefore, as the remaining mileage decreases, the reversal safety factor increases. The reversal duration is positively correlated with the reversal safety factor; therefore, as the remaining mileage decreases, the reversal duration increases. Since the viscosity of concrete increases over time, by making the reversal speed positively correlated with the remaining mileage and the reversal duration negatively correlated with the remaining mileage, it is possible to adjust the reversal speed while ensuring sufficient reversal stroke to impact the concrete over time, thus achieving a better effect of slowing down solidification. In practice, the forward rotation speed can be negatively correlated with the reversal speed, thereby providing a more effective impact through differences in speed and direction. In some embodiments, the reversal safety factor K3 can be expressed as: K3 = C1 - C2 * K1, where K1 is the mileage influence factor, C1 and C2 are positive constants, and K3 > 0, and the reversal duration T... r It can be represented as: T r =(60*S MAX * K3) / V r , among which, S MAX This is the reverse safety factor.

[0082] By controlling the reversing speed and duration using the above methods, the concrete viscosity is low immediately after unloading. A higher reversing speed and shorter reversing duration slow down the concrete's setting process, achieving better results in the initial state. As time goes on, the concrete viscosity gradually increases. Just before cleaning begins, a lower reversing speed and longer reversing duration can better change the concrete's viscosity state, making it more suitable for cleaning and facilitating subsequent cleaning operations to achieve better cleaning results.

[0083] This application also provides a concrete mixer truck, including a controller configured to perform the steps of the method described in the above embodiments.

[0084] Based on the same inventive concept as the foregoing embodiments, this invention provides an electronic device, such as... Figure 3 As shown, the electronic device includes: a processor 310 and a memory 311 storing a computer program; wherein, Figure 3 The processor 310 shown in the diagram does not indicate that there is only one processor 310, but only indicates the positional relationship of the processor 310 relative to other devices. In practical applications, there can be one or more processors 310; similarly, Figure 3 The memory 311 shown in the diagram has the same meaning, that is, it is only used to indicate the positional relationship of memory 311 relative to other devices. In practical applications, there can be one or more memories 311. When the processor 310 runs the computer program, the method described above is implemented.

[0085] The electronic device may also include at least one network interface 312. The various components of the electronic device are coupled together via a bus system 313. It is understood that the bus system 313 is used to implement communication between these components. In addition to a data bus, the bus system 313 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 3 The general designated all buses as Bus System 313.

[0086] The memory 311 can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memory 311 described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0087] The memory 311 in this embodiment of the invention is used to store various types of data to support the operation of the electronic device. Examples of this data include: any computer programs used to operate on the electronic device, such as operating systems and applications; contact data; phonebook data; messages; pictures; videos, etc. The operating system includes various system programs, such as the framework layer, core library layer, driver layer, etc., used to implement various basic services and handle hardware-based tasks. Applications can include various applications, such as media players, browsers, etc., used to implement various application services. Here, the program implementing the method of this embodiment of the invention can be included in the application.

[0088] Based on the same inventive concept as the foregoing embodiments, this embodiment also provides a computer-readable storage medium storing a computer program. The computer-readable storage medium can be a magnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM), etc.; it can also be various devices including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc. When the computer program stored in the computer-readable storage medium is run by a processor, it implements the methods described above. For the specific steps implemented when the computer program is executed by the processor, please refer to [link to relevant documentation]. Figure 1 The description of the illustrated embodiments will not be repeated here.

[0089] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for handling residual materials from a concrete mixer truck, characterized in that, include: When the concrete mixer truck arrives at the cleaning position and triggers the cleaning mode, it acquires cleaning parameters. The cleaning parameters include multiple steps, each of which includes the rotation direction, rotation speed and rotation duration of the mixing drum of the concrete mixer truck. During the cleaning process, the stirring drum is controlled to rotate according to the cleaning parameters; After cleaning is completed, the cleaning effect of the cleaning parameters is evaluated based on the residual amount of concrete in the mixing drum.

2. The method according to claim 1, characterized in that, The residual data includes the residual amount before cleaning, the actual residual amount after cleaning, and the target residual amount after cleaning. The evaluation of the cleaning effect of the cleaning parameters based on the residual concrete data in the mixing drum includes at least one of the following: Based on the amount of residue before cleaning and the actual amount of residue after cleaning, the absolute cleaning rate is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the actual residual amount after cleaning and the target residual amount after cleaning, the cleaning achievement rate is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the residual amount before cleaning, the actual residual amount after cleaning, and the total cleaning time, the cleaning rate per unit time is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the residual amount before cleaning, the actual residual amount after cleaning, and the total energy consumption for cleaning, the unit energy consumption cleaning rate is determined to obtain the evaluation result of the cleaning effect of the cleaning parameters. Based on the absolute cleaning rate, the cleaning achievement rate, the cleaning rate per unit time, and the cleaning rate per unit energy consumption, a cleaning effect score is determined to obtain an evaluation result of the cleaning effect of the cleaning parameters.

3. The method according to claim 2, characterized in that, The process of obtaining cleaning parameters includes: The cleaning parameters are matched to the preset conditions according to the capacity of the stirring tank; The preset conditions include at least one of the following: At least one of the evaluation results for cleaning effectiveness ranked highest; Highest usage rate.

4. The method according to claim 1, characterized in that, The process of obtaining cleaning parameters includes: Determine whether the self-learning function is currently enabled; If so, obtain the cleaning parameters recommended by the server; If not, retrieve the preset cleaning parameters or the currently input cleaning parameters.

5. The method according to claim 4, characterized in that, The method further includes: After cleaning is completed, the cleaning parameters and the evaluation results of the cleaning effect are sent to the server so that the server can perform data analysis based on the capacity of the mixing tank, the cleaning parameters, and the evaluation results of the cleaning effect. The analysis results are used to form a queryable database and / or recommended cleaning parameters.

6. The method according to claim 1, characterized in that, The method further includes: During the cleaning process, it is determined whether the energy of the concrete mixer truck is lower than a preset energy threshold. If so, control the stirring drum to drain water, and after the drainage reaches the preset time, control the stirring drum to stop rotating and output a prompt message indicating that the cleaning has stopped. If not, when the multiple steps are completed or the cleaning time reaches the preset cleaning time, the stirring drum is controlled to drain water, and after the drainage reaches the preset time, the stirring drum is controlled to rotate at a preset forward speed, and a prompt message indicating that the cleaning is complete is output.

7. The method according to any one of claims 1 to 6, characterized in that, Before the concrete mixer truck arrives at the cleaning location and triggers the cleaning mode, the method further includes: After the concrete mixer truck unloads, the amount of concrete remaining in the mixing drum and / or the real-time remaining mileage of the concrete mixer truck to the cleaning location are obtained. The rotation sequence of the stirring drum is determined based on the residual amount and / or the real-time remaining mileage, the rotation sequence including forward and reverse rotation parameters within each time unit; During the process of the concrete mixer truck heading to the cleaning location, the mixing drum is controlled to rotate according to the rotation sequence.

8. A concrete mixer truck, characterized in that, Includes a controller configured to perform the steps of the method as claimed in any one of claims 1 to 7.

9. An electronic device, characterized in that, The method includes a storage medium and a controller, wherein the storage medium stores a computer program that, when executed by the controller, implements the steps of the method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores a computer program, which, when executed by a processor, implements the steps of the method as described in any one of claims 1 to 7.

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