Material slump adjusting method and device of concrete truck

Abstract

The invention relates to the technical field of material slump adjustment, in particular to a material slump adjustment method and device for a concrete truck, and the device comprises an ultrasonic sensing system which is used for controlling and testing the ultrasonic pulse speed of a concrete mixture and sending the ultrasonic pulse speed to a controller; the controller is used for determining the actual slump of the concrete mixture based on the ultrasonic pulse speed and slump correlation model; and under the condition that the actually measured slump is smaller than the preset slump and the slump difference value is larger than the preset threshold value, a control valve of the secondary adding module is opened to control adding of the rapid dispersing type water reducing agent, and the slump difference value is fed back to the ultrasonic sensing system, so that the slump difference value is determined again by the ultrasonic sensing system and the controller. The slump difference value is smaller than a preset threshold value. Therefore, the performance of the concrete mixture can be rapidly detected by automatically adding the water reducing agent with relatively high dispersion speed, and the slump accuracy and the construction quality during concrete construction are improved.

Description

Technical Field

[0001] The invention relates to the technical field of material testing and analysis, and in particular to a material slump adjustment method and device of a concrete transport vehicle in the technical field of material testing and analysis. Background Art

[0002] Concrete mixtures have good construction performance and are the primary factor in ensuring the quality of concrete structures. Concrete slump is an important indicator in the concrete production process. During the transportation and construction of concrete mixtures, the construction performance of concrete mixtures will decrease over time due to the influence of various factors such as raw material quality, transportation time, on-site construction conditions, and environmental conditions. Some construction sites increase the fluidity of concrete by directly adding water, but this has a great impact on the strength of concrete. Some mixing stations use the method of adding ordinary admixtures for adjustment. Due to the post-addition of admixtures, the mixing time of the mixer truck is short, and ordinary admixtures require a certain reaction time. Before the required fluidity is achieved, excessive admixtures are added, resulting in the problem of lag amplification of the concrete.

[0003] In the related art, for material tracking in a mixer truck, water and additives are added by using a camera, remote manual material monitoring, or artificial intelligence image analysis, which results in large errors. Summary of the invention

[0004] The object of the present invention is to provide a method and device for adjusting the slump of materials in a concrete transport vehicle, and the technical scheme adopted is as follows:

[0005] In a first aspect, an embodiment of the present invention provides a material slump adjustment device for a concrete transport vehicle, the device comprising:

[0006] Ultrasonic sensing system, controller and secondary adding module; wherein:

[0007] The ultrasonic sensing system is used to control the ultrasonic pulse speed of the tested concrete mixture and send it to the controller;

[0008] The controller is used to determine the actual slump of the concrete mixture based on the ultrasonic pulse velocity and slump correlation model; and, when the measured slump is less than the preset slump and the slump difference is greater than a preset threshold, open the control valve of the secondary addition module to control the addition of the fast-dispersing water-reducing agent, and feed back to the ultrasonic sensing system, so that the ultrasonic sensing system and the controller re-determine the slump difference until the slump difference is less than the preset threshold; wherein the slump difference is the difference between the measured slump and the preset slump.

[0009] In some possible implementations, the ultrasonic sensing system includes: an ultrasonic pulse velocity tester, a wave number display and a time controller; wherein: the ultrasonic pulse velocity tester is arranged in the gap between the tail of the mixing drum of the concrete transport vehicle and the feed hopper; a dust cover is arranged on the outside of the ultrasonic pulse velocity tester; the ultrasonic pulse velocity tester is electrically connected to the wave number display; the time controller is used to control the test duration of the ultrasonic pulse velocity of the concrete mixture; wherein the test duration is greater than or equal to a first preset duration.

[0010] In some possible implementations, the ultrasonic pulse velocity tester is provided with a dual crystal straight probe, including: a transmitter and a receiver; the transmitter is used to transmit an ultrasonic signal to the concrete mixture; the receiver is used to receive a reflected signal from the surface of the concrete mixture; the wave number display is used to display the average pulse velocity of the ultrasonic pulse velocity within the test duration.

[0011] In some possible implementations, the controller includes: a data transmission module and an intelligent data analysis system; wherein: the data transmission module is used to transmit the ultrasonic pulse velocity data and the slump difference during the mixing process of concrete mixtures of different strength grades and different slumps by wireless transmission; the intelligent data analysis system includes a database of ultrasonic pulse velocities during the mixing process of concrete mixtures of different strength grades and different slumps, and has a derivation and calculation function of the slump correlation model; wherein the derivation and calculation function of the slump correlation model is used to determine the actual slump of the concrete mixture.

[0012] In some possible implementations, the intelligent data analysis system is used to open the control valve of the secondary addition module when the slump difference is greater than a preset threshold value; and to close the control valve of the secondary addition module when the slump difference is less than the preset threshold value.

[0013] In some possible implementations, the secondary addition module includes: a control valve, a pump and an admixture storage tank; wherein: the admixture storage tank is used to store the fast-dispersing water-reducing agent; the pump is used to extract the fast-dispersing water-reducing agent from the admixture storage tank into the mixing drum of the concrete transport vehicle when the control valve is in an open state.

[0014] In some possible implementations, the intelligent data analysis system is further used to control the mixing drum of the concrete transport vehicle to stir based on a second preset time after the fast-dispersing water reducer is added.

[0015] In some possible implementations, the material slump adjustment device of the concrete transport vehicle further includes: a display device; the intelligent data analysis system and the secondary addition module are connected to the display device; the display device is used to present the slump difference transmitted by the data transmission module; and receive an input start instruction, the start instruction is used to open the control valve of the secondary addition module to realize the manual end addition of the fast dispersible water reducer.

[0016] In some possible implementations, the controller further includes: an alarm;

[0017] The alarm is connected to the intelligent data analysis system and is used to generate and output alarm information when the slump difference is greater than the preset threshold.

[0018] In a second aspect, an embodiment of the present invention provides a method for adjusting the slump of materials in a concrete transport vehicle, the method comprising:

[0019] The ultrasonic pulse velocity of the concrete mixture is tested by using the ultrasonic induction system in the material slump adjustment device of the concrete transport vehicle;

[0020] The controller in the material slump adjustment device of the concrete transport vehicle is used to determine the actual slump of the concrete mixture based on the ultrasonic pulse velocity and slump correlation model;

[0021] Determining a slump difference between the measured slump and a preset slump;

[0022] When the slump difference is greater than a preset threshold, the control valve of the secondary addition module in the material slump adjustment device of the concrete transport vehicle is opened to control the addition of fast-dispersing water-reducing agent, and the feedback is given to the ultrasonic sensing system so that the ultrasonic sensing system and the controller re-determine the slump difference until the slump difference is less than the preset threshold.

[0023] According to a third aspect, a computer program product is provided, comprising: a computer program code, which, when executed on a computer, enables the computer to execute the method in the first aspect or any possible implementation of the first aspect.

[0024] In a fourth aspect, a computer-readable storage medium is provided, which stores a computer program code. When the computer program code runs on a computer, the computer executes the method in the first aspect or any possible implementation manner described in the first aspect.

[0025] The present invention has the following beneficial effects: a material slump adjustment device for a concrete transport vehicle is formed by an ultrasonic sensing system, a controller and a secondary addition module; an ultrasonic pulse velocity of a test concrete mixture is controlled by the ultrasonic sensing system and sent to the controller; thereby the controller determines the actual slump of the concrete mixture based on the ultrasonic pulse velocity and the slump correlation model; and, when the measured slump is less than the preset slump and the slump difference is greater than a preset threshold, the control valve of the secondary addition module is opened to control the addition of a fast dispersible water reducing agent, and the control valve is fed back to the ultrasonic sensing system, so that the ultrasonic sensing system and the controller re-determine the slump difference until the slump difference is less than the preset threshold; wherein the slump difference is the difference between the measured slump and the preset slump. In this way, an ultrasonic sensing system is used to test the ultrasonic pulse velocity of ultrasonic waves passing through the concrete mixture, and the measured slump is determined through the derivation and calculation function of the ultrasonic pulse velocity and slump correlation model, and the slump difference between the measured slump and the preset slump is analyzed; then, by automatically controlling the control valve of the secondary addition module, a fast-dispersing water-reducing agent with a faster dispersion speed can be automatically added when the measured slump is less than the preset slump and the slump difference is greater than the preset threshold value; thereby, the performance of the concrete mixture can be quickly detected, and the intelligent and precise control of the mixture in the concrete transport vehicle can be realized, thereby improving the accuracy of the slump during concrete construction and the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the composition structure of a material slump adjustment device for a concrete transport vehicle provided by an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of a concrete transport vehicle provided by an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the implementation principle of a material slump adjustment device for a concrete transport vehicle provided by an embodiment of the present invention;

[0030] Figure 4 It is another implementation flow diagram of a method for adjusting the slump of materials in a concrete transport vehicle provided by an embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of an application scenario of a material slump adjustment method of a concrete transport vehicle provided by an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of an application scenario of a material slump adjustment device for a concrete transport vehicle provided by an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of another application scenario of a material slump adjustment device for a concrete transport vehicle provided by an embodiment of the present invention;

[0034] Figure 8 It is a structural schematic diagram of a computer device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the material slump adjustment method of a concrete transport vehicle proposed by the present invention, its specific implementation method, structure, features and effects, in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0036] Among them, in the description of the embodiments of the present invention, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there may be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present invention, "multiple" refers to two or more than two.

[0037] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0038] Unless defined otherwise, 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 invention belongs.

[0039] The embodiment of the present invention provides a material slump adjustment device for a concrete transport vehicle. The following is a detailed description of a specific scheme of the material slump adjustment device for a concrete transport vehicle provided by the present invention in conjunction with the accompanying drawings. Figure 1, which shows a schematic diagram of the composition structure of a material slump adjustment device for a concrete transport vehicle provided by an embodiment of the present invention, wherein the device 100 comprises: an ultrasonic sensing system 101, a controller 5 and a secondary adding module 10; wherein:

[0040] The ultrasonic sensing system 101 is used to control the ultrasonic pulse speed of the tested concrete mixture and send it to the controller 5 .

[0041] Here, the concrete transport truck can be a mixer truck, such as Figure 2 As shown in the mixer truck 201.

[0042] In some possible implementations, the ultrasonic sensing system 101 includes: an ultrasonic pulse velocity tester, a wave number display, and a time controller; wherein:

[0043] The ultrasonic pulse velocity tester is arranged in the gap between the rear of the mixing drum of the concrete transport vehicle and the feed hopper; a dust cover is arranged outside the ultrasonic pulse velocity tester; and the ultrasonic pulse velocity tester is electrically connected to the wave number display. Figure 2 As shown, the ultrasonic pulse velocity tester 2 is installed outside the feed hopper 1 and in the gap between the feed hopper and the mixing drum 3, preferably on the outer plane of the feed hopper 1, and the plane of the ultrasonic pulse velocity tester 2 is parallel to the inlet plane of the mixing drum 3.

[0044] In some possible implementations, the ultrasonic pulse velocity tester is provided with a dual crystal straight probe, including: a transmitter and a receiver. The transmitter is used to transmit an ultrasonic signal to the concrete mixture; and the receiver is used to receive a reflected signal from the surface of the concrete mixture.

[0045] The wave number display is used to display the average pulse velocity of the ultrasonic pulse velocity within the test duration.

[0046] like Figure 3 As shown, the ultrasonic pulse velocity tester 2 is provided with a double crystal straight probe, including a transmitter 2-1 and a receiver 2-2. The ultrasonic pulse velocity tester 2 is electrically connected to a wave number display 4, and the wave number display 4 and a controller 5 (i.e. Figure 1 The controller 5) is electrically connected and installed beside the motor of the mixer truck.

[0047] The time controller is used to control the test duration of the ultrasonic pulse velocity of the concrete mixture.

[0048] The test duration is greater than or equal to a first preset duration. For example, the first preset duration may be a user-defined duration, for example, the first preset duration is greater than or equal to 20 seconds (s). In this way, the time controller controls the test duration of the ultrasonic pulse velocity of the concrete mixture to be at least 20 seconds; in this way, the ultrasonic pulse velocity tested by the time controller can be more accurate.

[0049] The controller 5 is used to determine the actual slump of the concrete mixture based on the ultrasonic pulse velocity and slump correlation model; and, when the measured slump is less than the preset slump and the slump difference is greater than a preset threshold, open the control valve of the secondary addition module 10 to control the addition of the fast-dispersing water-reducing agent, and feed back to the ultrasonic sensing system, so that the ultrasonic sensing system and the controller re-determine the slump difference until the slump difference is less than the preset threshold; wherein the slump difference is the difference between the measured slump and the preset slump; the dispersion time of the fast-dispersing water-reducing agent is less than the preset time threshold, that is, the fast-analysis water-reducing agent can be quickly dispersed in a short time.

[0050] Here, the controller includes: a data transmission module and an intelligent data analysis system; wherein:

[0051] The data transmission module is used to transmit the slump difference value by wireless transmission;

[0052] like Figure 3 As shown, the controller 5 includes an intelligent data analysis system 6, a data transmission module 7 and an alarm 8, and the intelligent data analysis system 6 is electrically connected to the data transmission module 7 and the alarm 8.

[0053] The intelligent data analysis system includes a database of ultrasonic pulse velocities during the mixing process of concrete mixtures of different strength grades and different slumps, and has a derivation and calculation function of the slump correlation model; wherein the derivation and calculation function of the slump correlation model is used to determine the actual slump of the concrete mixture.

[0054] The intelligent data analysis system is used to open the control valve of the secondary addition module when the slump difference is greater than a preset threshold value; and to close the control valve of the secondary addition module when the slump difference is less than the preset threshold value.

[0055] The controller 5 further includes: an alarm; the alarm is connected to the intelligent data analysis system, and is used to generate and output alarm information when the slump difference is greater than the preset threshold.

[0056] The device 100 also includes: a display device; the intelligent data analysis system and the secondary addition module are connected to the display device; the display device is used to present the slump difference transmitted by the data transmission module; and receive an input opening instruction, the opening instruction is used to open the control valve of the secondary addition module to realize the manual end addition of the fast dispersible water reducer.

[0057] like Figure 3 As shown, the intelligent data analysis system 6 analyzes the measured slump and the slump difference between the measured slump and the preset slump; the data is transmitted to the display device 9 through the data transmission module 7 using the General Packet Radio Service (GPRS), and the display device 9 can view the slump and other data output by the intelligent data analysis system 6; when the slump measured by the intelligent data analysis system 6 is smaller than the preset slump and exceeds 30 mm, the alarm 8 outputs an alarm message to prompt the addition of a fast-dispersing water-reducing agent. The display device 9 can also manually control the secondary addition module 10 to start, so as to realize manual intervention in the addition of a fast-dispersing water-reducing agent. The secondary addition module 10 is electrically connected to the ultrasonic sensing system 2, and the secondary addition module 10 starts the fast-dispersing water-reducing agent, and 10 seconds after the addition is completed, the ultrasonic sensing system 2 is started to perform the next step of testing. If the secondary addition module 10 is not started, the ultrasonic sensing system 2 is turned off.

[0058] In some possible implementations, the secondary addition module 10 includes: a control valve, a pump and an admixture storage tank; wherein: the admixture storage tank is used to store the fast-dispersing water-reducing agent; the pump is used to extract the fast-dispersing water-reducing agent from the admixture storage tank into the mixing drum of the concrete transport vehicle when the control valve is in an open state.

[0059] The intelligent data analysis system is used to open the control valve of the secondary addition module when the slump difference is greater than a preset threshold value; and to close the control valve of the secondary addition module when the slump difference is less than the preset threshold value.

[0060] The intelligent data analysis system is also used to control the mixing drum of the concrete transport vehicle to stir based on a second preset time after adding the fast dispersible water reducing agent.

[0061] Here, the second preset time length may be a custom time length, for example, the second preset time length is greater than or equal to 10 seconds.

[0062] like Figure 3As shown, when the slump measured by the intelligent data analysis system 6 is smaller than the preset slump and exceeds 30 mm, the alarm 8 sounds an alarm, and the control valve 10-1 in the secondary addition module 10 is started, and the fast dispersible water reducing agent in the admixture tank 10-2 is pumped into the mixing drum 3 by the pump 10-3, and 0.15 kilograms per cubic meter (Kg / m 3 ) of the fast-dispersing water-reducing agent, the slump change is about 30±10mm to avoid over-addition. After the addition is completed and each stirring is at least 10s, the ultrasonic pulse velocity tester tests the slump of the concrete material again; in this way, due to the fast dispersion rate of the fast-dispersing water-reducing agent, the slump of the concrete mixture can be tested quickly and accurately.

[0063] In the embodiment of the present invention, an ultrasonic sensing system is used to test the ultrasonic pulse velocity of ultrasonic waves passing through a concrete mixture, and the measured slump is determined by the derivation and calculation function of the ultrasonic pulse velocity and slump correlation model, and the slump difference between the measured slump and the preset slump is analyzed; thereafter, by automatically controlling the control valve of the secondary addition module, a fast-dispersing water-reducing agent with a higher dispersion speed can be automatically added when the measured slump is less than the preset slump and the slump difference is greater than a preset threshold value; thereby, the performance of the concrete mixture can be quickly detected, and the intelligent and precise control of the mixture in the concrete transport vehicle can be realized, thereby improving the accuracy of the slump during concrete construction and the construction quality.

[0064] The embodiment of the present invention provides a method for adjusting the slump of materials in a concrete transport vehicle. Figure 4 , which shows a schematic diagram of the implementation process of a material slump adjustment method for a concrete transport vehicle provided by an embodiment of the present invention, the method comprising:

[0065] 401. Using the ultrasonic sensing system in the material slump adjustment device of the concrete transport vehicle to test the ultrasonic pulse velocity of the concrete mixture.

[0066] 402 , using a controller in a material slump adjustment device of the concrete transport vehicle to determine an actual slump of the concrete mixture based on the ultrasonic pulse velocity and slump correlation model.

[0067] 403, determining a slump difference between the measured slump and a preset slump.

[0068] 404, when the slump difference is greater than a preset threshold, open the control valve of the secondary addition module in the material slump adjustment device of the concrete transport vehicle to control the addition of the fast-dispersing water-reducing agent, and feed back to the ultrasonic sensing system, so that the ultrasonic sensing system and the controller re-determine the slump difference until the slump difference is less than the preset threshold.

[0069] Wherein, the dispersion time of the fast-dispersing water reducer is less than a preset time threshold.

[0070] The above steps 401 to 404 can be performed by Figure 5 The steps shown achieve:

[0071] 501, mixing the concrete mixture.

[0072] 502, an ultrasonic parameter test is performed by an ultrasonic sensing system to obtain an ultrasonic pulse velocity and a test duration of a concrete mixture.

[0073] 503, performing wireless data transmission through a data transmission module.

[0074] Here, the ultrasonic pulse velocity and test duration of the concrete mixture are transmitted to the intelligent data analysis system through a data transmission model.

[0075] 504, determining the actual slump of the concrete mixture based on the ultrasonic pulse velocity and slump correlation model.

[0076] 505, judging whether the measured slump is less than the preset slump, and whether the slump difference exceeds 30 mm.

[0077] Here, if the measured slump is less than the preset slump and the slump difference exceeds 30 mm, proceed to step 506; otherwise, execute steps 507 and 508.

[0078] 506, add 0.15Kg / m each time 3 The process then returns to step 501.

[0079] Here, after returning to step 501, the fast dispersible water reducing agent is added for the second time. After the addition is completed, the concrete mixture is stirred for at least 10 seconds, and the measured slump and slump difference are retested; until the measured slump is less than the preset slump and the slump difference does not exceed 30 mm; and then enter steps 507 and 508.

[0080] 507, unloading of the concrete mixture.

[0081] 508, close the control valve of the secondary addition module.

[0082] In some embodiments, taking C30 concrete and C60 concrete as examples, the mixer truck is loaded with C30 concrete with a preset slump of 180 mm. After 1 hour (h), it is transported to the construction site. The driver starts the ultrasonic sensing system to test the ultrasonic pulse velocity of the concrete mixture at m / s. The interval from the test to the reading is 20s. The ultrasonic pulse velocity and slump correlation model of concrete of the corresponding strength grade is retrieved through the intelligent data analysis system. Among them, the relationship curve between the slump output by the ultrasonic pulse velocity and slump correlation model of C30 concrete is as follows: Figure 6 As shown in the relationship curve 601, the relationship curve between the ultrasonic pulse velocity of C30 concrete and the slump output by the slump correlation model satisfies the function y=-0.0649x+255.19, where y represents the slump and x represents the ultrasonic pulse velocity; the relationship curve between the ultrasonic pulse velocity and the slump correlation model of C60 concrete is shown in Figure 7 As shown in the relationship curve 701, the relationship curve between the ultrasonic pulse velocity of C60 concrete and the slump output by the slump correlation model satisfies the function y=-0.0349x+275.14, where y represents the slump, x represents the ultrasonic pulse velocity, and R represents the correlation. Figure 6 and Figure 7 In the figure, the abscissa represents the ultrasonic pulse velocity and the ordinate represents the slump.

[0083] Here, we take C30 concrete as an example. The measured slump is 130mm as deduced from the relationship curve 601, and the measured slump is 50mm smaller than the preset slump. At this time, the slump difference exceeds 30mm, the alarm sounds, and the data transmission module uses GPRS wireless transmission to the mobile phone. The slump of the concrete mixture can be viewed on the mobile phone. If necessary, the secondary addition module can be manually started and closed. If the mobile phone is not operated, the intelligent data analysis system will automatically start the control valve in the secondary addition module, adding 0.15Kg / m each time. 3 The rapid dispersible water reducer is stirred for 10 seconds and the ultrasonic sensing system is started again. The above steps are repeated until the slump of the concrete mixture tested by the intelligent data analysis system is 150 to 180 mm. The concrete mixture can be unloaded. The on-site material collection test shows that the slump of the concrete mixture is 170 mm, which is consistent with the results of the intelligent data analysis system.

[0084] In an embodiment of the present invention, an ultrasonic sensing system is used to test the ultrasonic pulse velocity of ultrasonic waves passing through a concrete mixture in a mixer. The actual slump of concrete in a concrete transport vehicle is determined by the derivation and calculation function of a correlation model between ultrasonic pulse velocity and slump. The difference between the measured slump and the preset slump is analyzed, and the secondary addition of a fast-dispersible water-reducing agent is guided by a secondary addition module, thereby enabling rapid detection of concrete mixture performance and online quality adjustment of materials on the concrete transport vehicle.

[0085] Optionally, the transmission medium can be a wired link (for example, but not limited to, coaxial cable, optical fiber and digital subscriber line (DSL), etc.) or a wireless link (for example, but not limited to, wireless Fidelity (WIFI), Bluetooth and mobile device network, etc.). It should be noted that: the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the computer device is divided into different functional modules to complete all or part of the functions described above. In addition, the method embodiments provided in the above embodiments belong to the same concept. The specific implementation process is detailed in the method embodiments, which will not be repeated here.

[0086] Figure 8 is a schematic diagram of the structure of a computer device provided by an embodiment of the present invention. Figure 8 As shown, the computer device 800 includes: a memory 801, a processor 802, and a computer program 803 stored in the memory 801 and running on the processor 802, wherein when the processor 802 executes the computer program 803, the computer device can execute any of the material slump adjustment methods for the concrete transport vehicle introduced above.

[0087] In addition, an embodiment of the present invention also protects a system, which may include a memory and a processor, wherein an executable program code is stored in the memory, and the processor is used to call and execute the executable program code to perform a material slump adjustment method for a concrete transport vehicle provided by an embodiment of the present invention. This embodiment can divide the system into functional modules according to the above method example. For example, it can correspond to each functional module, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic, which is only a logical function division. There may be other division methods in actual implementation. It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0088] It should be understood that the device provided in this embodiment is used to perform the material slump adjustment method of the above-mentioned concrete transport vehicle, so the same effect as the above-mentioned implementation method can be achieved. In the case of an integrated unit, the device may include a processing module and a storage module. Wherein, when the device is applied to the device, the processing module may be used to control and manage the action of the device. The storage module may be used to support the device to execute mutual program codes, etc. Wherein, the processing module may be a processor or a controller, which may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc., and the storage module may be a memory.

[0089] In addition, the device provided by the embodiment of the present invention may be a chip, a component or a module, and the chip may include a connected processor and a memory; wherein the memory is used to store instructions, and when the processor calls and executes the instructions, the chip may execute the material slump adjustment method for a concrete transport vehicle provided in the above embodiment. This embodiment also provides a computer-readable storage medium, in which a computer program code is stored, and when the computer program code is run on a computer, the computer executes the above-mentioned related method steps to implement the material slump adjustment method for a concrete transport vehicle provided in the above embodiment.

[0090] The present embodiment also provides a computer program product, when the computer program product is run on a computer, the computer executes the above-mentioned related steps to implement a material slump adjustment method for a concrete transport vehicle provided in the above embodiment. Among them, the device, computer-readable storage medium, computer program product or chip provided in the present embodiment are all used to execute the corresponding method provided above, so the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be repeated here. Through the description of the above implementation mode, the technicians in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In practical applications, the above-mentioned function allocation can be completed by different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In the embodiments provided by the present invention, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiment described above is only schematic, for example, the division of modules or units is only a logical function division, and there can be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, which may be electrical, mechanical or other forms.

[0091] It should be noted that the sequence of the above-mentioned embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multi-task processing and parallel processing are also possible or may be advantageous. The various embodiments in this specification are described in a progressive manner, and the same and similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments. The above content is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered within the protection scope of the present invention.

Claims

1. A material slump adjustment device for a concrete transport vehicle, characterized in that: The material slump adjustment device of the concrete transport vehicle comprises: an ultrasonic sensing system, a controller and a secondary adding module; wherein: The ultrasonic sensing system is used to control the ultrasonic pulse speed of the tested concrete mixture and send it to the controller; The controller is used to determine the actual slump of the concrete mixture based on the ultrasonic pulse velocity and slump correlation model; and, when the measured slump is less than the preset slump and the slump difference is greater than a preset threshold, open the control valve of the secondary addition module to control the addition of the fast-dispersing water-reducing agent, and feed back to the ultrasonic sensing system, so that the ultrasonic sensing system and the controller re-determine the slump difference until the slump difference is less than the preset threshold; wherein the slump difference is the difference between the measured slump and the preset slump.

2. The material slump adjustment device of a concrete transport vehicle according to claim 1, characterized in that: The ultrasonic induction system comprises: an ultrasonic pulse velocity tester, a wave number display and a time controller; wherein: The ultrasonic pulse velocity tester is arranged in the gap between the tail of the mixing drum of the concrete transport vehicle and the feed hopper; a dust cover is arranged outside the ultrasonic pulse velocity tester; the ultrasonic pulse velocity tester is electrically connected to the wave number display; The time controller is used to control the test duration of the ultrasonic pulse velocity of the concrete mixture; wherein the test duration is greater than or equal to a first preset duration.

3. The material slump adjustment device of a concrete transport vehicle according to claim 2, characterized in that: The ultrasonic pulse velocity tester is provided with a double crystal straight probe, including: a transmitter and a receiver; The transmitter is used to transmit an ultrasonic signal to the concrete mixture; The receiver is used to receive the reflected signal from the surface of the concrete mixture; The wave number display is used to display the average pulse velocity of the ultrasonic pulse velocity within the test duration.

4. The material slump adjustment device for a concrete transport vehicle according to claim 1, characterized in that: The controller includes: a data transmission module and an intelligent data analysis system; wherein: The data transmission module is used to transmit the ultrasonic pulse velocity data and the slump difference during the mixing process of concrete mixtures of different strength grades and different slumps by wireless transmission; The intelligent data analysis system includes a database of ultrasonic pulse velocities during the mixing process of concrete mixtures of different strength grades and different slumps, and has a derivation and calculation function of the slump correlation model; wherein the derivation and calculation function of the slump correlation model is used to determine the actual slump of the concrete mixture.

5. The material slump adjustment device for a concrete transport vehicle according to claim 4, characterized in that: The intelligent data analysis system is used to open the control valve of the secondary addition module when the slump difference is greater than a preset threshold value; and to close the control valve of the secondary addition module when the slump difference is less than the preset threshold value.

6. The material slump adjustment device for a concrete transport vehicle according to claim 4 or 5, characterized in that: The secondary addition module comprises: a control valve, a pump and an additive storage tank; wherein: The admixture storage tank is used to store the fast dispersible water reducing agent; The pump is used to extract the fast-dispersing water-reducing agent from the admixture storage tank into the mixing drum of the concrete transport vehicle when the control valve is in an open state.

7. The material slump adjustment device for a concrete transport vehicle according to claim 4 or 5, characterized in that: The intelligent data analysis system is also used to control the mixing drum of the concrete transport vehicle to stir based on a second preset time after adding the fast dispersible water reducing agent.

8. The material slump adjustment device for a concrete transport vehicle according to claim 4 or 5, characterized in that: The material slump adjustment device of the concrete transport vehicle further includes: a display device; The intelligent data analysis system and the secondary adding module are connected to the display device; The display device is used to present the slump difference transmitted by the data transmission module; and receive an input opening instruction, wherein the opening instruction is used to open the control valve of the secondary addition module to enable manual addition of the fast dispersible water reducer.

9. The material slump adjustment device for a concrete transport vehicle according to claim 4 or 5, characterized in that: The controller further includes: an alarm; The alarm is connected to the intelligent data analysis system and is used to generate and output alarm information when the slump difference is greater than the preset threshold.

10. A method for adjusting the slump of materials in a concrete transport vehicle, characterized in that: The method is applied to a material slump adjustment device of a concrete transport vehicle, and the method comprises: The ultrasonic pulse velocity of the concrete mixture is tested by using the ultrasonic induction system in the material slump adjustment device of the concrete transport vehicle; The controller in the material slump adjustment device of the concrete transport vehicle is used to determine the actual slump of the concrete mixture based on the ultrasonic pulse velocity and slump correlation model; Determining a slump difference between the measured slump and a preset slump; When the slump difference is greater than a preset threshold, the control valve of the secondary addition module in the material slump adjustment device of the concrete transport vehicle is opened to control the addition of fast-dispersing water-reducing agent, and the feedback is given to the ultrasonic sensing system so that the ultrasonic sensing system and the controller re-determine the slump difference until the slump difference is less than the preset threshold.

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