Method and device for concrete quality control of mixer truck and mixer truck

Abstract

The invention provides a concrete quality control method and device for a mixer truck and the mixer truck, and belongs to the technical field of engineering machinery. The agitating lorry comprises an agitating drum, and the method comprises the following steps: in the process of transporting concrete by the agitating lorry, acquiring the real-time slump of the concrete in the agitating drum; the real-time slump variation of the real-time slump relative to a pre-stored initial slump is determined, and the initial slump is the slump of the mixer truck at the moment of starting to transport concrete; under the condition that the real-time slump change quantity is greater than or equal to a preset slump change threshold value, determining a concrete quality adjusting strategy of the mixing drum according to the real-time slump and the initial slump; and adjusting the stirring working condition parameters of the stirring drum according to the concrete quality adjusting strategy. The problem of concrete quality control in the transportation process can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and in particular to a method and device for controlling the quality of concrete in a mixer truck, and a mixer truck. Background Art

[0002] Since concrete is a viscous mixture formed by mixing materials such as concrete water, cement, sand and additives, the mixing drum on the mixer truck will rotate continuously to mix the concrete during the process of transporting concrete by the mixer truck. Ensuring the quality of concrete during the process of transporting concrete by the mixer truck is crucial for the subsequent work of construction workers. However, the existing technology for the process of transporting concrete by mixer trucks focuses more on state monitoring, such as obtaining the quality of concrete in the mixing drum through sensors or motor torque. That is, the existing technology only has monitoring technology for the quality of concrete during transportation, and there is no technology for controlling the quality of concrete during transportation. Therefore, how to achieve control of concrete quality during transportation has become a problem that needs to be solved urgently. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a method, device, mixer truck and storage medium for controlling the quality of concrete in a mixer truck, so as to solve the problem of how to control the quality of concrete during transportation.

[0004] In order to achieve the above-mentioned object, the first aspect of the present application provides a method for controlling the quality of concrete in a mixer truck, wherein the mixer truck includes a mixing drum, and the method includes:

[0005] During the process of concrete transportation by the mixer truck, the real-time slump of concrete in the mixing drum is obtained;

[0006] Determine the change in the real-time slump relative to the pre-stored initial slump, wherein the initial slump is the slump at the moment when the mixer truck starts to transport concrete;

[0007] When the real-time slump change is greater than or equal to a preset slump change threshold, a concrete quality adjustment strategy for the mixing drum is determined according to the real-time slump and the initial slump;

[0008] The mixing operating parameters of the mixing drum are adjusted according to the concrete quality adjustment strategy.

[0009] In an embodiment of the present application, a concrete quality adjustment strategy for the mixing drum is determined according to the real-time slump and the initial slump, including: when the real-time slump is greater than the initial slump, determining that the concrete quality adjustment strategy for the mixing drum is to reduce the rotation speed of the mixing drum and / or add a first concrete additive to the concrete in the mixing drum, wherein the first concrete additive is used to reduce the slump of the concrete.

[0010] In an embodiment of the present application, a concrete quality adjustment strategy for the mixing drum is determined according to the real-time slump, the initial slump, and the slump change, including: when the real-time slump is less than the initial slump, determining that the concrete quality adjustment strategy for the mixing drum is to increase the rotation speed of the mixing drum and / or add a second concrete additive to the concrete in the mixing drum, wherein the second concrete additive is used to increase the slump of the concrete.

[0011] In an embodiment of the present application, after adjusting the mixing operating parameters of the mixing drum according to the concrete quality adjustment strategy, the method also includes: after completing the process of the mixer truck transporting concrete, obtaining a target real-time slump change amount among multiple real-time slump change amounts, a final mixing operating parameter of the mixing drum, and a total number of adjustments of the mixing drum during the process of the mixer truck transporting concrete, wherein the target real-time slump change amount is the maximum value of the real-time slump change amounts that are less than a preset slump change threshold; when the target real-time slump change amount is less than the historical benchmark slump change amount, and the total number of adjustments is less than the historical benchmark total number of adjustments, uploading the final mixing operating parameters to a pre-built operating condition database.

[0012] In an embodiment of the present application, the method also includes: determining the product value of the target real-time slump change and the total number of adjustments; when the target real-time slump change is greater than or equal to the historical benchmark slump change, the total number of adjustments is less than the historical benchmark total number of adjustments, and the product value is less than a preset product value, uploading the final mixing condition parameters to a pre-constructed condition database, wherein the preset product value is the product value of the historical benchmark slump change and the historical benchmark total number of adjustments.

[0013] In an embodiment of the present application, reducing the rotation speed of the mixing drum and / or adding the first concrete additive to the concrete in the mixing drum includes: determining a target slump change level where the real-time slump change is located; determining a target mixing drum rotation speed change corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a mixing drum rotation speed change; reducing the rotation speed of the mixing drum according to the target mixing drum rotation speed change; and / or determining a target slump change level where the real-time slump change is located; determining a target first concrete additive injection amount corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a first concrete additive injection amount; and adding the first concrete additive corresponding to the target first concrete additive injection amount to the concrete in the mixing drum.

[0014] In an embodiment of the present application, increasing the rotation speed of the mixing drum and / or adding the second concrete additive to the concrete in the mixing drum includes: determining a target slump change level where the real-time slump change is located; determining a target mixing drum speed change corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a mixing drum speed change; increasing the rotation speed of the mixing drum according to the target mixing drum speed change; and / or determining a target slump change level where the real-time slump change is located; determining a target second concrete additive injection amount corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a second concrete additive injection amount; and adding the second concrete additive corresponding to the target second concrete additive injection amount to the concrete in the mixing drum.

[0015] A second aspect of the present application provides a device for concrete quality control of a mixer truck, comprising: a memory configured to store instructions; and a processor configured to call the instructions from the memory and implement the above-mentioned method for concrete quality control of a mixer truck when executing the instructions.

[0016] A third aspect of the present application provides a mixer truck, comprising: a mixing drum; and the above-mentioned device for controlling concrete quality of the mixer truck.

[0017] A fourth aspect of the present application provides a machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute the above-mentioned method for controlling the quality of concrete in a mixer truck.

[0018] The above technical solution, during the process of concrete transportation by the mixer truck, obtains the real-time slump of the concrete in the mixing drum, thereby determining the slump change of the real-time slump of the concrete relative to the pre-stored initial slump, wherein the initial slump is the slump of the mixer truck at the moment of starting to transport concrete. Based on this, when the slump change during the concrete transportation process is monitored in real time to be greater than or equal to the preset slump change threshold, the concrete quality adjustment strategy of the mixing drum can be determined according to the real-time slump and the initial slump, and further, the mixing operating parameters of the mixing drum can be adjusted according to the concrete quality adjustment strategy. In this way, during the process of concrete transportation by the mixer truck, the slump of the concrete is controlled to achieve the control of the concrete quality, the concrete quality adjustment strategy of the mixing drum is determined according to the real-time slump change, the real-time slump and the initial slump of the concrete, and the mixing operating parameters of the mixing drum are adjusted according to the concrete quality adjustment strategy, so that the quality control of the concrete in the mixing drum can be achieved.

[0019] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0021] Figure 1 A schematic diagram of a process for controlling the quality of concrete in a mixer truck according to an embodiment of the present application is shown;

[0022] Figure 2 A schematic diagram of a mixer truck provided with a gravity-type additive pipe according to an embodiment of the present application is schematically shown;

[0023] Figure 3 A schematic diagram of the data transmission flow from the mixer truck entering the station for loading to leaving the station according to an embodiment of the present application is shown;

[0024] Figure 4 A schematic diagram of data comparison of the self-correction auxiliary function in the working condition database according to an embodiment of the present application is schematically shown. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] It should be noted that the acquisition, transmission, storage, use, and processing of data in the technical solution of this application are in compliance with the relevant provisions of national laws and regulations. In the embodiments of this application, some existing solutions in the industry such as certain software, components, and models may be mentioned, which should be considered as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or will necessarily use the solution.

[0027] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] Figure 1 The following schematically shows a flow chart of a method for controlling the quality of concrete in a mixer truck according to an embodiment of the present application. Figure 1 As shown, the embodiment of the present application provides a method for controlling the quality of concrete in a mixer truck. The mixer truck includes a mixing drum. The method is applied to a processor as an example for description. The method may include the following steps:

[0030] Step S101, obtaining the real-time slump of concrete in the mixing drum during the process of the mixer truck transporting concrete.

[0031] Step S102, determining a change in the real-time slump relative to a pre-stored initial slump, wherein the initial slump is the slump at the moment when the mixer truck starts to transport concrete.

[0032] Step S103, when the real-time slump change is greater than or equal to the preset slump change threshold, determine the concrete quality adjustment strategy of the mixing drum according to the real-time slump and the initial slump.

[0033] Step S104, adjusting the mixing operating parameters of the mixing drum according to the concrete quality adjustment strategy.

[0034] It can be understood that slump is an indicator for measuring the fluidity of concrete. The higher the slump, the greater the fluidity of concrete, and the lower the slump, the smaller the fluidity of concrete. The real-time slump is the slump of concrete in the mixing drum at each moment (unit time, for example, 1 second) during the process of the mixer truck transporting concrete. The real-time slump can be stored in real time, and the pre-stored initial slump is the pre-stored slump of the mixer truck at the moment when it starts transporting concrete (the mixer truck leaves the station). The real-time slump change is the absolute value of the difference between the real-time slump and the initial slump, and the preset slump change threshold is the pre-set slump change threshold. The concrete quality adjustment strategy is a strategy for adjusting the quality of concrete. The mixing condition parameters of the mixing drum include but are not limited to the operating parameters of the mixing drum and / or the material ratio parameters of the concrete, wherein the operating parameters of the mixing drum include but are not limited to the real-time slump of the concrete in the mixing drum and the rotation speed of the mixing drum, and the material ratio parameters of the concrete include but are not limited to the ratio parameters corresponding to the content of concrete water, cement, sand and concrete additives.

[0035] Specifically, the processor can obtain the real-time slump of concrete in the mixing drum during the process of the mixer truck transporting concrete. The real-time slump of concrete can be determined by setting a networked slump sensor or other measuring device in the mixing drum, and the real-time slump of concrete collected in real time can be uploaded to the cloud of the processor. The specific slump determination method is a conventional slump determination method, which will not be described in detail here. The processor can also pre-store the slump (initial slump) when the mixer truck starts to transport concrete, and determine the real-time slump change relative to the pre-stored initial slump (determine the absolute value of the difference between the real-time slump and the initial slump). When the real-time slump change is less than the preset slump change threshold, the processor determines that the real-time slump change of the concrete at a certain moment is a normal change, and there is no need to control the quality of the concrete; and when the real-time slump change is greater than or equal to the preset slump change threshold, the processor determines that the real-time slump change is an abnormal change, and the quality of the concrete needs to be controlled to a certain extent. Therefore, based on the real-time slump and the initial slump, the processor can further formulate a concrete quality adjustment strategy for the mixing drum, and then use the concrete quality adjustment strategy to adjust the mixing operating parameters of the mixing drum, thereby controlling the quality of the concrete in the mixing drum.

[0036] The above method for controlling the quality of concrete in a mixer truck determines the slump change of the real-time slump of the concrete in the mixing drum relative to the pre-stored initial slump by obtaining the real-time slump of the concrete in the mixing drum during the process of transporting concrete by the mixer truck, wherein the initial slump is the slump of the mixer truck at the time when the concrete transportation starts (the time when the mixer truck leaves the station). Based on this, when the slump change in the concrete transportation process is monitored in real time to be greater than or equal to the preset slump change threshold, the concrete quality adjustment strategy of the mixing drum can be determined according to the real-time slump and the initial slump, and further, the mixing operating parameters of the mixing drum can be adjusted according to the concrete quality adjustment strategy. In this way, in the process of transporting concrete by the mixer truck, the slump of the concrete is controlled to achieve the control of the concrete quality, the concrete quality adjustment strategy of the mixing drum is determined according to the real-time slump change, the real-time slump and the initial slump of the concrete, and the mixing operating parameters of the mixing drum are adjusted according to the concrete quality adjustment strategy, so that the quality control of the concrete in the mixing drum can be achieved.

[0037] In one embodiment, determining a concrete quality adjustment strategy for a mixing drum according to the real-time slump and the initial slump may include: when the real-time slump is greater than the initial slump, determining that the concrete quality adjustment strategy for the mixing drum is to reduce the rotation speed of the mixing drum and / or add a first concrete additive to the concrete in the mixing drum, wherein the first concrete additive is used to reduce the slump of the concrete.

[0038] It can be understood that the concrete additive is an additive used to adjust the slump of concrete. The concrete additive may include a first concrete additive (such as a water reducer) corresponding to reducing the slump of concrete. The rotation speed of the mixing drum is the rotation speed of the mixing drum where the concrete is located. The concrete quality adjustment strategy may include but is not limited to reducing the rotation speed of the mixing drum and / or adding a first concrete additive (such as a water reducer) to the concrete in the mixing drum. Reducing the rotation speed of the mixing drum can slow down the chemical reaction of the concrete in the mixing drum and reduce the slump of the concrete in the mixing drum. The first concrete additive (such as a water reducer) can be used to reduce the slump of concrete (reduce the fluidity of concrete).

[0039] Specifically, when the processor determines that the real-time slump is greater than the initial slump, it can first determine that the concrete quality adjustment strategy of the mixing drum is to reduce the rotation speed of the mixing drum, and send the concrete quality adjustment strategy of the mixing drum to the central console. The transportation personnel can reduce the rotation speed of the mixing drum based on this strategy. Then, after the preset quality control time, if the real-time slump has not decreased, the concrete quality adjustment strategy of the mixing drum is re-determined to add the first concrete additive to the concrete in the mixing drum. Prior to this, an additive tube can be added to the mixing drum of the original mixer truck. The additive tube can include an additive tube filled with the first concrete additive. The number of additive tubes can be multiple, and the additive tubes can include but are not limited to gravity-type additive tubes and power-type additive tubes. For gravity-type additive tubes, such as Figure 2 As shown, the gravity-type additive tube can be set at the position inside the mixing drum where the vertical distance from the horizontal ground is the largest. The concrete quality adjustment strategy of the mixing drum is sent to the central console. Based on this strategy, the transportation personnel can control the pipeline switch through the solenoid valve to control the first concrete additive in the gravity-type additive tube to be added to the concrete in the mixing drum, thereby controlling the quality of the concrete in the mixing drum; for the power-type additive tube, the power-type additive tube can be set at any position inside the mixing drum. The concrete quality adjustment strategy of the mixing drum is sent to the central console. Based on this strategy, the transportation personnel can add the first concrete additive in the power-type additive tube to the concrete in the mixing drum through a water pump, thereby controlling the quality of the concrete in the mixing drum.

[0040] In the embodiment of the present application, by real-time monitoring of the slump of concrete in the mixing drum and formulating a corresponding concrete quality adjustment strategy for the mixing drum, the quality of concrete during transportation can be improved. Specifically, if the concrete quality adjustment strategy for the mixing drum is to reduce the rotation speed of the mixing drum, the slump of concrete can be reduced, and then there is no need to add the first concrete additive to the concrete in the mixing drum, which can save the economic cost of the first concrete additive. If the concrete quality adjustment strategy for the mixing drum is to reduce the rotation speed of the mixing drum, but the slump of concrete cannot be reduced, the quality of concrete in the mixing drum is controlled by adding the first concrete additive to the concrete in the mixing drum.

[0041] In one embodiment, determining the concrete quality adjustment strategy of the mixing drum according to the real-time slump, the initial slump and the slump change may include: when the real-time slump is less than the initial slump, determining the concrete quality adjustment strategy of the mixing drum to increase the rotation speed of the mixing drum and / or add a second concrete additive to the concrete in the mixing drum, wherein the second concrete additive is used to increase the slump of the concrete.

[0042] It can be understood that the concrete additive can also include a second concrete additive (such as water) corresponding to increasing the slump of concrete. The concrete quality adjustment strategy can also include increasing the rotation speed of the mixing drum and / or adding a second concrete additive (such as water) to the concrete in the mixing drum. Increasing the rotation speed of the mixing drum can accelerate the chemical reaction of the concrete in the mixing drum and increase the slump of the concrete in the mixing drum. The second concrete additive (such as water) can be used to increase the slump of concrete (increase the fluidity of concrete).

[0043] Specifically, when the processor determines that the real-time slump is less than the initial slump, it can first determine that the concrete quality adjustment strategy of the mixing drum is to increase the rotation speed of the mixing drum, and send the concrete quality adjustment strategy of the mixing drum to the central console. The transportation personnel can increase the rotation speed of the mixing drum based on this strategy. Then, after the preset quality control time, if the real-time slump of the concrete has not increased, the concrete quality adjustment strategy of the mixing drum is re-determined to add a second concrete additive to the concrete in the mixing drum. Prior to this, an additive tube can be added to the mixing drum of the original mixer truck. The additive tube can also include an additive tube filled with a second concrete additive. The number of additive tubes can be multiple. The additive tubes can include but are not limited to gravity-type additive tubes and power-type additive tubes. For gravity-type additive tubes, such as Figure 2 As shown, the gravity-type additive tube can be set at the position where the vertical distance from the horizontal ground inside the mixing drum is the largest. The concrete quality adjustment strategy of the mixing drum is sent to the central console. Based on this strategy, the transportation personnel can control the pipeline switch through the solenoid valve to control the second concrete additive in the gravity-type additive tube to be added to the concrete in the mixing drum, thereby controlling the quality of the concrete in the mixing drum; for the power-type additive tube, the power-type additive tube can be set at any position inside the mixing drum. The concrete quality adjustment strategy of the mixing drum is sent to the central console. Based on this strategy, the transportation personnel can add the second concrete additive in the power-type additive tube to the concrete in the mixing drum through a water pump, thereby increasing the real-time slump corresponding to the concrete in the mixing drum, thereby controlling the quality of the concrete in the mixing drum.

[0044] In one embodiment, after adjusting the mixing operating parameters of the mixing drum according to the concrete quality adjustment strategy, the method may further include: after the process of the mixer truck transporting concrete is completed, obtaining a target real-time slump change amount among multiple real-time slump change amounts, a final mixing operating parameter of the mixing drum, and a total number of adjustments of the mixing drum during the process of the mixer truck transporting concrete, wherein the target real-time slump change amount is the maximum value of the real-time slump change amounts that are less than a preset slump change threshold; when the target real-time slump change amount is less than the historical benchmark slump change amount, and the total number of adjustments is less than the historical benchmark total number of adjustments, uploading the final mixing operating parameters to a pre-built operating condition database.

[0045] It can be understood that the real-time slump change can be the real-time stored slump change, the number of real-time slump change can be multiple, and the target real-time slump change is the maximum value of the real-time slump change that is less than the preset slump change threshold. The mixing condition parameters of the mixing drum can be determined in the database when the mixer truck starts to transport (the time when the mixer truck leaves the station, that is, the time when the mixer truck leaves the mixing station) based on the customer's order requirements. The final mixing condition parameters include but are not limited to the final operating parameters of the mixing drum and the final material ratio parameters of the concrete. The final operating parameters of the mixing drum may include the final real-time slump of the concrete in the mixing drum and the final rotation speed of the mixing drum. The final material ratio parameters of the concrete include but are not limited to the ratio parameters corresponding to the content of concrete water, cement, sand, and concrete additives. The total number of adjustments of the mixing drum is the total number of times the mixing operating parameters of the mixing drum are adjusted using the concrete quality adjustment strategy during the process of starting to transport concrete (the time when the mixer truck leaves the station) to ending to transport concrete (i.e. the time when the mixer truck arrives at the construction site). The historical benchmark slump change is used for comparison with the target real-time slump change, which may be the historical slump change corresponding to the mixing operating parameters of the mixing drum in the pre-constructed operating database. The historical benchmark total number of adjustments is used for comparison with the total number of adjustments, which may be the historical total number of adjustments corresponding to the mixing operating parameters of the mixing drum in the pre-constructed operating database. The pre-constructed operating database may be a pre-constructed operating database for storing real-time slump and adjustment times during concrete transportation.

[0046] Specifically, after the process of the mixer truck transporting concrete is completed (i.e., the mixer truck arrives at the construction site), the processor determines the target real-time slump change among multiple real-time slump changes, and determines the total number of adjustments of the mixing drum during the process of the mixer truck transporting concrete. After the mixer truck returns to the mixing station, the target real-time slump change and the total number of adjustments of the mixing drum are compared with the historical benchmark slump change and the historical benchmark total adjustment number corresponding to the mixing operating condition parameters of the mixing drum in the operating condition database. If the target real-time slump change is less than the historical benchmark slump change, and the total number of adjustments is less than the historical benchmark total number of adjustments, the target real-time slump change is less than the historical benchmark slump change, which can be understood as the maximum difference between the real-time slump and the initial slump during the concrete transportation process is closer to the initial slump than the historical benchmark slump change, and the total number of adjustments is less than the historical benchmark total number of adjustments. It can be determined that during this concrete transportation process, the number of times the mixing drum is adjusted using the concrete quality adjustment strategy is less than the historical benchmark adjustment number, and it can be determined that the final mixing condition parameters of the mixing drum during this concrete transportation process are better than the mixing condition data of the mixing drum in the working condition database, and the final mixing condition parameters of the mixing drum during this concrete transportation process are uploaded to the working condition database. In this way, during multiple concrete transportation processes, the data model can be continuously accumulated through the self-correction auxiliary function, thereby optimizing the historical data in the working condition database and completing the automatic iteration of the working condition database upgrade.

[0047] In one embodiment, the method may further include: determining the product value of the target real-time slump change and the total number of adjustments; when the target real-time slump change is greater than or equal to the historical benchmark slump change, the total number of adjustments is less than the historical benchmark total number of adjustments, and the product value is less than a preset product value, uploading the final mixing condition parameters to a pre-built condition database, wherein the preset product value is the product value of the historical benchmark slump change and the historical benchmark total number of adjustments.

[0048] Specifically, if the following formula is satisfied, the final mixing condition parameters are uploaded to the pre-built condition database:

[0049] R <R V

[0050] T>T V

[0051] Q.R.J.T. <Q·R V ·J.T. V

[0052] Among them, R is the total number of adjustments, T is the target real-time slump change, R Vis the total number of adjustments based on the historical benchmark, T V is the change in historical benchmark slump, Q and T are constant values ​​preset by the user.

[0053] If the target real-time slump change is greater than or equal to the historical benchmark slump change, the total number of adjustments is less than the historical benchmark total number of adjustments, and the product value is less than the preset product value, it is determined that the final mixing operating condition parameters of the mixing drum during this concrete transportation process are better than the mixing operating conditions of the mixing drum in the operating condition database, and the final mixing operating condition parameters of the mixing drum during this concrete transportation process are uploaded to the operating condition database. In this way, data from multiple concrete transportation processes can be recorded, and data models can be continuously accumulated through the self-correction auxiliary function, thereby optimizing the historical data in the operating condition database and completing the automatic iteration of the operating condition database upgrade.

[0054] In one embodiment, reducing the rotation speed of the mixing drum and / or adding the first concrete additive to the concrete in the mixing drum may include: determining a target slump change level where the real-time slump change is located; determining a target mixing drum rotation speed change corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a mixing drum rotation speed change; reducing the rotation speed of the mixing drum according to the target mixing drum rotation speed change; and / or determining a target slump change level where the real-time slump change is located; determining a target first concrete additive injection amount corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a first concrete additive injection amount; and adding the first concrete additive corresponding to the target first concrete additive injection amount to the concrete in the mixing drum.

[0055] It can be understood that the injection amount of the concrete additive can be determined by the electronic liquid level sensor. The target slump change level can be a slump change divided into multiple levels, and the correspondence between the predetermined preset slump change level and the mixing drum speed change can be a one-to-one relationship between the predetermined preset slump change level and the mixing drum speed change, and different preset slump change levels correspond to different mixing drum speed changes, and the target mixing drum speed change can be the mixing drum speed change corresponding to the target slump change level. Similarly, the correspondence between the predetermined preset slump change level and the first concrete additive injection amount can be a one-to-one relationship between the predetermined preset slump change level and the first concrete additive injection amount, and different preset slump change levels correspond to different first concrete additive injection amounts.

[0056] Specifically, when adopting the concrete quality adjustment strategy of the mixing drum to reduce the rotation speed of the mixing drum and / or add a first concrete additive to the concrete in the mixing drum, determine the target slump change level where the real-time slump change amount is located, so as to determine the target mixing drum rotation speed change amount and / or the target first concrete additive injection amount corresponding to the target slump change level. Further, based on the target mixing drum rotation speed change amount, the rotation speed of the mixing drum can be reduced and / or the first concrete additive corresponding to the target first concrete additive injection amount can be added. The rotation speed change amount of each reduction of the mixing drum rotation speed can be determined, and the injection amount of each first concrete additive can also be determined to reduce the slump of the concrete and improve the fineness of the concrete quality adjustment strategy, so as to accurately control the quality of the concrete during discharging.

[0057] In a specific embodiment, the slump change levels can be divided into a first level (the slump change amount range is a - b mm), a second level (the slump change amount range is b - c mm), and a third level (the slump change amount range is c - d mm) from small to large, where 0 < a < b < c < d. The target mixing drum rotation speed change amount corresponding to the first level can be V1 km / h, and the corresponding target first concrete additive injection amount is L1 ml. The target mixing drum rotation speed change amount corresponding to the second level can be V2 km / h, and the corresponding target first concrete additive injection amount is L2 ml. The target mixing drum rotation speed change amount corresponding to the third level can be V3 km / h, and the corresponding target first concrete additive injection amount is L3 ml, where 0 < V1 < V2 < V3, 0 < L1 < L2 < L3. If the rotation speed of the mixing drum at the current moment is V0 km / h, and the real-time slump change amount is L0 mm, where L0 is within the slump change amount range b - c mm (b < L0 < c), then determine that the target slump change level where it is located is the second level, determine that the target mixing drum rotation speed change amount corresponding to the second level is V2 km / h, and / or the target first concrete additive injection amount L2 ml. Then the rotation speed of the mixing drum is reduced from V0 to V km / h (V = V0 - V2), and / or add the first concrete additive with the target first concrete additive injection amount L2 ml into the mixing drum.

[0058] In one embodiment, increasing the rotation speed of the mixing drum and / or adding the second concrete additive to the concrete in the mixing drum may include: determining a target slump change level where the real-time slump change is located; determining a target mixing drum rotation speed change corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a mixing drum rotation speed change; increasing the rotation speed of the mixing drum according to the target mixing drum rotation speed change; and / or determining a target slump change level where the real-time slump change is located; determining a target second concrete additive injection amount corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a second concrete additive injection amount; and adding the second concrete additive corresponding to the target second concrete additive injection amount to the concrete in the mixing drum.

[0059] It can be understood that the correspondence between the predetermined slump change level and the second concrete additive injection amount can be a one-to-one relationship between the predetermined slump change level and the second concrete additive injection amount, and different predetermined slump change levels correspond to different second concrete additive injection amounts.

[0060] Specifically, when the concrete quality adjustment strategy of the mixing drum is adopted to increase the rotation speed of the mixing drum and / or add the second concrete additive to the concrete of the mixing drum, the target slump change level where the real-time slump change amount is located is determined, so as to determine the target mixing drum rotation speed change amount and / or the target first concrete additive injection amount corresponding to the target slump change level. Further, the rotation speed of the mixing drum can be increased based on the target mixing drum rotation speed change amount and / or the second concrete additive corresponding to the target second concrete additive injection amount can be added, the rotation speed change amount of each reduction of the mixing drum rotation speed can be determined, and the injection amount of the second concrete additive can also be determined each time, so as to increase the slump of the concrete, improve the precision of the concrete quality adjustment strategy, and thus accurately control the quality of the concrete when it is discharged.

[0061] In a specific embodiment, the mixer truck may include a mixing drum for loading and mixing concrete. Figure 3As shown, the embodiment of the present application may also include a pre-built database, a mixing station and an Internet of Things platform, wherein the mixing station is a station where the mixer truck stops and receives the mix parameters of the concrete, and the Internet of Things platform is a platform for data intersection and data upload. Before the mixer truck starts to transport concrete (i.e., the mixer truck leaves the station), the mixing station receives the order requirements transmitted by the user, wherein the order requirements may include but are not limited to the customer location, the mileage from the station, the estimated arrival time, and the required concrete number (e.g., C15, C20, C25, C30, C35, and C40), and searches for the target order requirements similar to the order requirements in the working condition database (e.g., the same amount of concrete, the same transportation distance, and the same required concrete number), and sends the mixing working condition parameters of the mixing drum under the target order requirements in the database to the corresponding mixer truck or mixing station, specifically: the mix parameters of the received concrete in the mixing working condition parameters of the mixing drum are sent to the mixing station, thereby realizing the assembly of concrete in the mixer truck by the mixing station, and sending the working condition data to the mixer truck. Among them, the working condition data includes but is not limited to the maximum speed limit of the mixer truck and the operation data of the mixing drum. After the mixer truck returns to the station, the target real-time slump change is compared with the historical benchmark slump change, and the total adjustment times are compared with the historical benchmark total adjustment times on the Internet of Things platform. When the target real-time slump change is less than the historical benchmark slump change, and the total adjustment times are less than the historical benchmark total adjustment times, or when the target real-time slump change is greater than or equal to the historical benchmark slump change, the total adjustment times are less than the historical benchmark total adjustment times, and the product value is less than the preset product value, the final mixing operating parameters and the optimal data in the operating condition database are determined as the final mixing operating parameters of the mixing drum during this concrete transportation process.

[0062] like Figure 4 As shown, the final mixing operating parameters may include but are not limited to the operating parameters of the mixing drum (including but not limited to the working condition data of the mixer truck returning to the factory) and / or the material ratio parameters of the concrete (i.e., the mixing station ratio parameters). The final mixing operating parameters are compared with the existing data in the working condition database to determine the optimal data between the two, and upload them to the pre-built working condition database. Through the above-mentioned self-correction auxiliary function (data comparison: mainly R is the total number of adjustments, T is the target real-time slump change, R V is the total number of adjustments based on the historical benchmark, T V is the historical benchmark slump change). After multiple uses of the mixer truck and other equipment in this application, the data in the working condition database is continuously accumulated, and the error is continuously reduced through the big data method to achieve parameter correction in the working condition database.

[0063] By adopting the data collection and data comparison mode of vehicle-network collaboration, the mixing operating parameters of the mixing drum during the concrete transportation process can be continuously recorded and accumulated, and real-time data can be fed back in real time. The real-time mixing operating parameters of the mixing drum can be compared with the mixing operating parameters in the operating condition database, and the optimal mixing operating parameters of the mixing drum can be uploaded to the operating condition database, so that the mixing operating parameters of the mixing drum in the operating condition database are closer to the optimal solution, thereby achieving the purpose of minimizing the loss of concrete quality. In this way, the optimization process of the database can be completed, and reference data can be provided for the mixing operating parameters of the mixing drum corresponding to the subsequent concrete transportation by the mixer truck.

[0064] An embodiment of the present application also provides a device for concrete quality control of a mixer truck, which may include: a memory configured to store instructions; and a processor configured to call the instructions from the memory and implement the above-mentioned method for concrete quality control of a mixer truck when executing the instructions.

[0065] An embodiment of the present application also provides a mixer truck, which may include: a mixing drum; and the above-mentioned device for controlling concrete quality in a mixer truck.

[0066] An embodiment of the present application also provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned method for controlling the quality of concrete in a mixer truck.

[0067] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0068] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0069] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0070] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0071] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0072] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0073] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0074] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0075] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for controlling the quality of concrete in a mixer truck, characterized in that: The mixer truck includes a mixing drum, and the method includes: During the process of the mixer truck transporting concrete, obtaining the real-time slump of the concrete in the mixing drum; Determine a change in the real-time slump relative to a pre-stored initial slump, wherein the initial slump is the slump of the mixer truck at the time when the mixer truck starts to transport concrete; When the real-time slump change is greater than or equal to a preset slump change threshold, determining a concrete quality adjustment strategy for the mixing drum according to the real-time slump and the initial slump; The mixing operating parameters of the mixing drum are adjusted according to the concrete quality adjustment strategy.

2. The method according to claim 1, characterized in that The method of determining the concrete quality adjustment strategy of the mixing drum according to the real-time slump and the initial slump includes: When the real-time slump is greater than the initial slump, the concrete quality adjustment strategy of the mixing drum is determined to be reducing the rotation speed of the mixing drum and / or adding a first concrete additive to the concrete in the mixing drum, wherein the first concrete additive is used to reduce the slump of concrete.

3. The method according to claim 1, characterized in that The method of determining the concrete quality adjustment strategy of the mixing drum according to the real-time slump, the initial slump and the slump change comprises: When the real-time slump is less than the initial slump, the concrete quality adjustment strategy of the mixing drum is determined to be increasing the rotation speed of the mixing drum and / or adding a second concrete additive to the concrete in the mixing drum, wherein the second concrete additive is used to increase the slump of concrete.

4. The method according to claim 1, characterized in that: After adjusting the mixing operating parameters of the mixing drum according to the concrete quality adjustment strategy, the method further includes: After the process of transporting concrete by the mixer truck is finished, a target real-time slump change amount among the multiple real-time slump change amounts, a final mixing condition parameter of the mixer drum, and a total number of adjustments of the mixer drum during the process of transporting concrete by the mixer truck are obtained, wherein the target real-time slump change amount is a maximum value among the real-time slump change amounts that are less than a preset slump change threshold value; When the target real-time slump change is less than the historical benchmark slump change, and the total number of adjustments is less than the historical benchmark total number of adjustments, the final mixing operating condition parameters are uploaded to a pre-constructed operating condition database.

5. The method according to claim 4, characterized in that The method further comprises: Determine the product value of the target real-time slump change and the total number of adjustments; When the target real-time slump change is greater than or equal to the historical benchmark slump change, the total number of adjustments is less than the historical benchmark total number of adjustments, and the product value is less than the preset product value, the final mixing condition parameters are uploaded to a pre-built condition database, wherein the preset product value is the product of the historical benchmark slump change and the historical benchmark total number of adjustments.

6. The method according to claim 2, characterized in that The reducing the rotation speed of the mixing drum and / or adding a first concrete additive to the concrete in the mixing drum comprises: Determine the target slump change level where the real-time slump change is located; Based on the predetermined correspondence between the preset slump change level and the mixing drum speed change, determining the target mixing drum speed change corresponding to the target slump change level; reducing the speed of the mixing drum according to the target mixing drum speed change; and / or Determine the target slump change level where the real-time slump change is located; Determining a target first concrete additive injection amount corresponding to the target slump change level based on a predetermined correspondence between a preset slump change level and a first concrete additive injection amount; A first concrete additive corresponding to the target first concrete additive injection amount is added to the concrete in the mixing drum.

7. The method according to claim 3, characterized in that The increasing the rotation speed of the mixing drum and / or adding a second concrete additive to the concrete in the mixing drum comprises: Determine the target slump change level where the real-time slump change is located; Based on the predetermined correspondence between the preset slump change level and the mixing drum speed change, determining the target mixing drum speed change corresponding to the target slump change level; Increasing the speed of the mixing drum according to the target mixing drum speed change; and / or Determine the target slump change level where the real-time slump change is located; Determining a target second concrete additive injection amount corresponding to the target slump change level based on a correspondence between a predetermined preset slump change level and a second concrete additive injection amount; A second concrete additive corresponding to the target second concrete additive injection amount is added to the concrete in the mixing drum.

8. A device for controlling the quality of concrete in a mixer truck, characterized in that: include: a memory configured to store instructions; as well as A processor is configured to call the instructions from the memory and implement the method for concrete quality control in a mixer truck according to any one of claims 1 to 7 when executing the instructions.

9. A mixer truck, characterized in that: include: Mixing drum; The device for controlling the quality of concrete in a mixer truck according to claim 8.

10. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores instructions for causing a machine to execute the method for controlling the quality of concrete in a mixer truck according to any one of claims 1 to 7.

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