Concrete vibrating device based on multi-modal sensor fusion judgment and vibrating method thereof

Abstract

The application discloses a concrete vibrating device based on multi-modal sensing fusion judgment and a vibrating method thereof. The vibrating device comprises a vibrating rod body, a vibrating head, a driving assembly for driving the vibrating head to vibrate, a concrete state detection assembly built in the vibrating head and used for collecting electrical state data of concrete around the vibrating rod body in a vibrating process, a vibration state detection assembly built in the vibrating head and used for collecting vibration state data of the vibrating rod body in a vibrating process, and a control module connected with the concrete state detection assembly and the vibration state detection assembly and used for judging whether the vibrating rod body is in a normal working state according to the vibration state data, and judging whether concrete reaches a vibrating compacting state according to the electrical state data when the vibrating rod body is in the normal working state. The vibrating device improves the concrete construction quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a concrete vibration device and vibration method based on multimodal sensor fusion judgment. Background Technology

[0002] During concrete pouring, to improve the density of the concrete structure, it is usually necessary to use vibration equipment to vibrate the poured concrete, remove air bubbles inside the concrete, and promote the full bonding of aggregates and grout. Currently, immersion vibrators are commonly used for manual vibration on construction sites. Operators typically judge whether the concrete has reached the required density based on vibration time, the surface condition of the concrete during vibration, and their experience.

[0003] However, existing vibration methods rely heavily on the operator's experience, making it difficult to accurately capture changes in the internal state of the concrete. On one hand, insufficient vibration time may lead to problems such as porosity and insufficient density within the concrete, while excessive vibration time may cause segregation and slurry floating, making precise control of the vibration process difficult. On the other hand, existing vibration equipment typically only provides mechanical vibration and cannot determine in real time whether the vibrator itself is in normal working condition. When the vibrator experiences insufficient vibration force or abnormal shutdown, incorrect test results may still be used to determine that the concrete has met the vibration requirements, thus affecting the quality of concrete construction.

[0004] With the development of intelligent detection technology, some vibration equipment has begun to combine sensor detection methods to monitor the concrete vibration process. However, existing technologies usually only analyze a single detection parameter and lack a comprehensive judgment on the working status of the vibration equipment and the internal state of the concrete. They are easily affected by factors such as equipment malfunctions and changes in the construction environment, resulting in insufficient accuracy in judging the vibration status. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a concrete vibration device and method based on multimodal sensing fusion judgment. The device collects concrete electrical state data and vibration state data of the vibrator by means of built-in concrete state detection component and vibration state detection component respectively, and the control module fuses and judges them to achieve objective, real-time and accurate judgment of the compaction state, eliminate the problems of missed vibration and over-vibration, and improve the quality and efficiency of concrete construction.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is a concrete vibration device based on multimodal sensor fusion judgment, comprising: The vibratory rod body includes a vibrating head and a drive assembly for driving the vibrating head to vibrate; A concrete condition detection component, built into the vibrating head, is used to collect electrical condition data of the concrete around the vibrating rod body during the vibration process. A vibration state detection component, built into the vibration head, is used to collect vibration state data during the vibration process of the vibrating rod body. The control module, connected to the concrete state detection component and the vibration state detection component, is used to determine whether the vibrator body is in normal working condition based on the vibration state data, and when the vibrator body is in normal working condition, to determine whether the concrete has reached the compaction state based on the electrical state data.

[0007] A further improvement of the concrete vibration device based on multimodal sensing fusion judgment in this invention is that the concrete state detection component includes a resistivity sensor, which is built into the vibrating head and is used to collect resistivity data of the concrete around the vibrating head in order to obtain the changes in the internal state of the concrete during vibration.

[0008] The further improvement of the concrete vibration device based on multimodal sensing fusion judgment in this invention is that the control module is used to calculate the resistivity change trend based on multiple continuously collected resistivity data. When the resistivity change trend gradually changes from a rapid change state to a stable state and remains stable for a preset time, it is determined that the concrete in the corresponding area has reached the vibration compaction state.

[0009] A further improvement of the concrete vibration device based on multimodal sensor fusion judgment in this invention is that the vibration state detection component includes a triaxial vibration accelerometer, which is built into the vibration head and is used to collect vibration acceleration data of the vibration head along multiple directions to determine whether the vibration head generates effective vibration.

[0010] A further improvement of the concrete vibration device based on multimodal sensing fusion judgment in this invention is that the control module calculates the vibration amplitude and vibration frequency of the vibrating head according to the vibration acceleration data, and determines whether the vibrating rod body is in normal working condition based on whether the vibration amplitude and vibration frequency are within a preset range.

[0011] A further improvement of the concrete vibration device based on multimodal sensing fusion judgment in this invention is that the concrete vibration device further includes a feedback component, which is connected to the control module. The control module controls the feedback component to output corresponding prompt information according to the concrete vibration status, so as to prompt the operator on the current vibration status.

[0012] A further improvement of the concrete vibration device based on multimodal sensing fusion judgment in this invention is that the feedback component includes a vibrating element disposed at the operating end of the vibrating rod body, which is used to vibrate after the concrete is compacted to remind the operator to complete the vibration operation at the current vibration position.

[0013] A further improvement of the concrete vibration device based on multimodal sensing fusion judgment in this invention is that the feedback component also includes a status indicator light set at the operating end of the vibrator body, which is used to display different colors in the vibration operation state, vibration compaction state and equipment failure state respectively.

[0014] A concrete vibration method based on multimodal sensor fusion judgment includes the following steps: Step 1: Provide the above-mentioned concrete vibration device based on multimodal sensor fusion judgment; Step 2: Control the vibrator body to vibrate the concrete area to be vibrated, and use the vibration state detection component to synchronously collect the vibration state data of the vibrator body during the vibration process, and send the vibration state data to the control module. Step 3: The control module receives the vibration state data and determines whether the vibrating rod body is in normal working condition based on the vibration state data; Step 4: When the vibrator body is in normal working condition, the electrical state data of the concrete around the vibrator body is collected using the concrete state detection component, and the electrical state data is sent to the control module. Step 5: The control module receives the electrical status data and determines whether the concrete has reached the compaction state based on the continuously collected electrical status data.

[0015] Compared with the prior art, the advantages of the present invention are: 1. By adopting a multimodal sensing fusion scheme of concrete condition detection component and vibration condition detection component, the objective, real-time and accurate determination of the compaction state is realized, thereby fundamentally eliminating the problems of missed vibration and over-vibration, effectively eliminating common quality defects such as concrete honeycomb and pitting, and greatly improving the quality of concrete entities and structural safety. 2. By using resistivity sensors to collect concrete resistivity data in real time and analyze its changing trends, unnecessary long-term vibration can be avoided, the operation time at a single point can be shortened, and the overall construction efficiency can be significantly improved. 3. By setting up vibration components and status indicator lights in the feedback components, ordinary workers can master the operation methods with simple training, reducing the need for highly skilled workers and saving labor costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural framework diagram of the concrete vibration device based on multimodal sensor fusion judgment according to the present invention.

[0018] Figure 2 This is a flowchart of the vibration process of the concrete vibration device based on multimodal sensor fusion judgment according to the present invention.

[0019] Figure 3 This is a detailed structural diagram of the vibrating head of the concrete vibrating device based on multimodal sensing fusion judgment according to the present invention.

[0020] Figure 4 This is a graph showing the change in resistivity over time during the concrete vibration process.

[0021] Figure 5 This is a detailed structural diagram of the status indicator light of the concrete vibration device based on multimodal sensor fusion judgment according to the present invention.

[0022] 1. Power supply module; 2. Vibrating rod body; 3. Resistivity sensor; 4. Triaxial vibration accelerometer; 5. Signal processing unit; 6. Control module; 7. Feedback component. Detailed Implementation

[0023] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0024] The following detailed description of the concrete vibration device and vibration method based on multimodal sensor fusion judgment of the present invention, with reference to the accompanying drawings and specific embodiments, is provided in further detail.

[0025] Please see Figures 1-5 As shown, the concrete vibration device based on multimodal sensor fusion judgment includes: The vibrating rod body 2 includes a vibrating head and a drive assembly for driving the vibrating head to vibrate; A concrete condition detection component, built into the vibrating head, is used to collect electrical condition data of the concrete around the vibrating rod body 2 during the vibration process. A vibration state detection component is built into the vibration head and is used to collect vibration state data during the vibration process of the vibrating rod body 2. The control module 6 is connected to the concrete state detection component and the vibration state detection component. It is used to determine whether the vibrator body 2 is in normal working condition based on the vibration state data, and when the vibrator body 2 is in normal working condition, it determines whether the concrete has reached the compaction state based on the electrical state data.

[0026] By setting the vibration state detection component and the concrete state detection component to collect vibration state data and electrical state data respectively, and then using the normal vibration state as a prerequisite for compaction determination, the control module 6 performs a fusion judgment to achieve objective, real-time, and accurate determination of the compaction state. This ensures that the equipment is in an effective working state when determining the concrete compaction, avoiding misjudgment and problems of missed or over-vibration under abnormal equipment conditions, and improving the quality of concrete construction and work efficiency.

[0027] Specifically, the concrete vibration device also includes a signal processing unit 5. The concrete state detection component and the vibration state detection component are both connected to the control module 6 through the signal processing unit 5. The signal processing unit 5 is used to amplify, filter and perform analog-to-digital conversion on the collected electrical state data and vibration state data, so as to provide the control module 6 with high-quality digital signals.

[0028] By setting up signal processing unit 5 to amplify, filter and convert analog-to-digital signals of resistivity and vibration, electromagnetic interference and mechanical vibration noise in the construction environment are effectively eliminated, enabling control module 6 to obtain high-quality digital signals that have been synchronously preprocessed. This ensures the time consistency and accuracy matching of multimodal data fusion, solves the defects of traditional solutions such as weak anti-interference ability and low detection accuracy, and ensures that the system operates stably and reliably under complex actual working conditions.

[0029] Specifically, the vibrating head is forged from high-strength alloy steel and can withstand high-frequency vibration impact and construction wear.

[0030] Preferably, the concrete condition detection component includes a resistivity sensor 3, which is built into the vibrating head to collect resistivity data of the concrete around the vibrating head in order to obtain the changes in the internal state of the concrete during vibration.

[0031] Specifically, the resistivity sensor 3 adopts a four-electrode structure and is encapsulated inside a special ceramic material, which has excellent wear resistance and chemical corrosion resistance.

[0032] By adopting a four-electrode structure, measurement errors caused by electrode polarization effects are effectively avoided. The sensor is encapsulated inside a special ceramic material, enabling the resistivity sensor 3 to maintain measurement accuracy and structural integrity for a long time in the strong abrasion and alkaline chemical corrosion environment of high-frequency concrete vibration. This ensures that the system continues to work stably throughout its entire life cycle, reducing the frequency of maintenance and replacement and the cost of use.

[0033] Preferably, the control module 6 is used to calculate the resistivity change trend based on multiple continuously collected resistivity data. When the resistivity change trend gradually changes from a rapid change state to a stable state and remains stable for a preset time, it is determined that the concrete in the corresponding area has reached the state of vibration compaction.

[0034] The control module 6 calculates the resistivity change trend in real time and uses the change trend from rapid change to stability as the criterion for determining the compaction state, rather than relying on a single threshold. This allows the system to adaptively adapt to the different resistivity change patterns of concrete with different grades and slumps during the vibration process. At the same time, combined with the condition of maintaining stability for a continuously preset time, it effectively avoids misjudgments caused by interference signals at the construction site. Thus, under the premise of ensuring no missed vibration and no over-vibration, it achieves wide applicability and high reliability for various concrete mix proportions.

[0035] Specifically, the built-in algorithm of control module 6 samples data every 100ms and calculates the resistivity change rate in real time with a calculation window of 1 second.

[0036] Working principle: During the vibration process, the internal air content of concrete gradually decreases, and the distribution of moisture and ions tends to be uniform. The corresponding resistivity value will show a regular change (usually showing a rapid decrease in the early stage and a trend of stabilization in the later stage).

[0037] Preferably, the vibration state detection component includes a triaxial vibration accelerometer 4, which is built into the vibration head and is used to collect vibration acceleration data of the vibration head in multiple directions to determine whether the vibration head generates effective vibration.

[0038] The triaxial vibration accelerometer 4 collects multi-directional vibration data of the vibrating head in real time, enabling the control module 6 to use effective vibration as a prerequisite for compaction determination, thus avoiding misjudgment caused by equipment idling or abnormal operating conditions. At the same time, the multi-directional acquisition method can adapt to different insertion angles, ensuring the integrity of monitoring data and system reliability.

[0039] Preferably, the control module 6 calculates the vibration amplitude and vibration frequency of the vibrating head based on the vibration acceleration data, and determines whether the vibrating rod body 2 is in normal working condition based on whether the vibration amplitude and vibration frequency are within a preset range.

[0040] The control module 6 quantifies and calculates the vibration amplitude and frequency and compares them with the preset range, enabling the system to identify abnormal equipment status in real time before and during vibration operation, and to use the normal working status as a prerequisite for compaction determination, thus avoiding misjudgment due to equipment failure. At the same time, the preset range can be calibrated according to the parameters of different vibration equipment, improving the system's compatibility and versatility for different types of vibrators.

[0041] Preferably, the concrete vibration device further includes a feedback component 7, which is connected to the control module 6. The control module 6 controls the feedback component 7 to output corresponding prompt information according to the concrete vibration status, so as to prompt the operator on the current vibration status.

[0042] By setting up feedback component 7 and having control module 6 control its output of corresponding prompt information according to the vibration status, the operator can know the current vibration status in real time without relying on subjective experience, reducing the dependence on the operator's skill level, avoiding under-vibration and over-vibration, and achieving consistency and controllability of construction quality.

[0043] Specifically, the concrete vibration device also includes a power module 1, which is electrically connected to the vibrator body 2, the concrete condition detection component, the vibration condition detection component, the signal processing unit 5, the control module 6, and the feedback component 7 for unified power supply.

[0044] By setting up this power module 1 to provide unified power supply to all electrical components, the structural bulk and maintenance difficulties caused by configuring power supplies for each component independently are avoided. At the same time, the power management chip realizes voltage regulation output, ensuring that each module can still obtain a stable power supply under the voltage fluctuation conditions of vibration operation, thereby improving the overall power supply reliability and ease of use of the system.

[0045] Preferably, the feedback component 7 includes a vibrator disposed at the operating end of the vibrator body 2, which vibrates after the concrete has been compacted to remind the operator that the current vibration position has been completed.

[0046] The vibrator, located at the operating end of the vibrator body 2, generates an indicative vibration after the concrete has been compacted. This allows the operator to directly perceive the completion signal of the vibration through touch in noisy construction environments without relying on sight or hearing, thus enabling timely relocation of the work position, avoiding over-vibration, and improving construction efficiency.

[0047] Specifically, the vibrating element is a vibrating motor, which is built into the handle of the vibrating rod body 2. The vibrating motor is a 10mm flat high-power motor, which ensures that it can still be clearly perceived by the operator in a noisy construction environment.

[0048] Preferably, the feedback component 7 also includes a status indicator light located at the operating end of the vibratory rod body 2, which displays different colors for vibration operation, vibration compaction, and equipment failure.

[0049] The status indicator light displays different colors for three states: vibration operation, compaction completed, and equipment malfunction. This allows operators to quickly obtain vibration status information from a distance without having to get close to the equipment. Together with the vibrating component, it forms a dual prompting mechanism, which not only improves the ease of operation but also promptly alerts the operator to any equipment malfunctions through conspicuous colors, thus avoiding quality and safety issues caused by operating with faults.

[0050] Specifically, such as Figure 5 As shown: The status indicator light consists of a blue, green, and red LED strip. When the control module 6 detects that the vibrator body 2 is working normally but the concrete has not yet been compacted, the status indicator light will display blue. After the control module 6 detects that the vibrator body 2 is working normally and the concrete has been compacted, the status indicator light will display green. When the control module 6 detects that the vibrator body 2 is not working normally, the status indicator light will display red.

[0051] A concrete vibration method based on multimodal sensor fusion judgment includes the following steps: Step 1: Provide the above-mentioned concrete vibration device based on multimodal sensor fusion judgment; Step 2: Control the vibrator body 2 to vibrate the concrete area to be vibrated, and use the vibration state detection component to synchronously collect the vibration state data of the vibrator body 2 during the vibration process, and send the vibration state data to the control module 6. Step 3: The control module 6 receives the vibration status data and determines whether the vibrating rod body 2 is in normal working condition based on the vibration status data; Step 4: When the vibrator body 2 is in normal working condition, the electrical state data of the concrete around the vibrator body 2 is collected by the concrete state detection component and the electrical state data is sent to the control module 6. Step 5: The control module 6 receives the electrical status data and determines whether the concrete has reached the state of compaction based on the continuously collected electrical status data.

[0052] Specifically, the control module 6 has a built-in high-performance microprocessor (MCU), which is an STM32 series high-performance processor. After receiving the vibration acceleration data sent by the vibration state detection component, the control module 6 calculates the vibration amplitude and vibration frequency of the vibrating head, and determines whether the vibrating rod body 2 is in normal working condition based on whether the vibration amplitude and vibration frequency are within the preset range. When the vibrating rod body 2 is in normal working condition, the control module 6 receives the resistivity data sent by the concrete state detection component, calculates the resistivity change trend (Δρ / Δt) based on the continuously collected resistivity data, and when the resistivity change trend gradually changes from a rapid change state to a stable state and remains stable for a preset time (e.g., 10 seconds), it is determined that the concrete in the corresponding area has reached the compaction state.

[0053] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A concrete vibration device based on multimodal sensing fusion judgment, characterized in that, include: The vibratory rod body includes a vibrating head and a drive assembly for driving the vibrating head to vibrate; A concrete condition detection component, built into the vibrating head, is used to collect electrical condition data of the concrete around the vibrating rod body during the vibration process. A vibration state detection component, built into the vibration head, is used to collect vibration state data during the vibration process of the vibrating rod body; The control module, connected to the concrete state detection component and the vibration state detection component, is used to determine whether the vibrator body is in normal working condition based on the vibration state data, and when the vibrator body is in normal working condition, to determine whether the concrete has reached the compaction state based on the electrical state data.

2. The concrete vibration device based on multimodal sensor fusion judgment as described in claim 1, characterized in that, The concrete condition detection component includes a resistivity sensor, which is built into the vibrating head and is used to collect resistivity data of the concrete around the vibrating head in order to obtain the changes in the internal state of the concrete during vibration.

3. The concrete vibration device based on multimodal sensor fusion judgment as described in claim 2, characterized in that, The control module is used to calculate the resistivity change trend based on the continuously collected resistivity data. When the resistivity change trend gradually changes from a rapid change state to a stable state and remains stable for a preset time, it is determined that the concrete in the corresponding area has reached the state of vibration compaction.

4. The concrete vibration device based on multimodal sensor fusion judgment as described in claim 1, characterized in that, The vibration state detection component includes a triaxial vibration accelerometer, which is built into the vibration head and is used to collect vibration acceleration data of the vibration head in multiple directions to determine whether the vibration head generates effective vibration.

5. The concrete vibration device based on multimodal sensor fusion judgment as described in claim 4, characterized in that, The control module calculates the vibration amplitude and vibration frequency of the vibrating head based on the vibration acceleration data, and determines whether the vibrating rod body is in normal working condition based on whether the vibration amplitude and vibration frequency are within a preset range.

6. The concrete vibration device based on multimodal sensor fusion judgment as described in claim 1, characterized in that, The concrete vibration device also includes a feedback component, which is connected to the control module. The control module controls the feedback component to output corresponding prompt information according to the concrete vibration status, so as to prompt the operator on the current vibration status.

7. The concrete vibration device based on multimodal sensor fusion judgment as described in claim 6, characterized in that, The feedback component includes a vibrating element disposed at the operating end of the vibrating rod body, which is used to vibrate after the concrete has been compacted to remind the operator that the current vibration position has been completed.

8. The concrete vibration device based on multimodal sensor fusion judgment as described in claim 6, characterized in that, The feedback component also includes a status indicator light located at the operating end of the vibratory rod body, which displays different colors for vibration operation, vibration compaction, and equipment failure.

9. A method for concrete vibration based on multimodal sensor fusion judgment, characterized in that, Including the following steps: Step 1: Provide the concrete vibration device based on multimodal sensor fusion as described in claim 1; Step 2: Control the vibrator body to vibrate the concrete area to be vibrated, and use the vibration state detection component to synchronously collect the vibration state data of the vibrator body during the vibration process, and send the vibration state data to the control module. Step 3: The control module receives the vibration state data and determines whether the vibrating rod body is in normal working condition based on the vibration state data; Step 4: When the vibrator body is in normal working condition, the electrical state data of the concrete around the vibrator body is collected using the concrete state detection component, and the electrical state data is sent to the control module. Step 5: The control module receives the electrical status data and determines whether the concrete has reached the compaction state based on the continuously collected electrical status data.

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