Thickness measuring device for road cost based on Internet of Things and data storage system

Abstract

The invention discloses a road cost thickness measuring device based on Internet of Things and a data storage system, and relates to the technical field of road cost measurement, the road cost thickness measuring device comprises a base, a controller and a data storage module, the base is fixedly provided with a stand, a sliding frame is rotatably connected with a rotating cylinder, and the outer side of the rotating cylinder is provided with a plug-in detection part; the plug-in detection part is electrically connected with the controller, and a driving part for controlling the sliding connection frame to vertically move and controlling the rotating cylinder to rotate at the same time is arranged on the bending frame. And the data storage module comprises a local storage unit, a storage analysis unit, a storage judgment unit and a cloud storage unit. According to the invention, efficient processing and storage of measurement data are realized through the data storage module, effective parts in the measurement data are accurately screened, the data accuracy is improved, hierarchical storage and reasonable resource allocation are realized in combination with local and cloud storage, the uploading quality of the uploaded data can be ensured, the data are ensured to be accurate and reliable, and the system is suitable for large-scale popularization and application. And powerful support is provided for highway cost measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of highway cost measurement, and in particular to a thickness measuring device and a data storage system for highway cost based on the Internet of Things. Background Art

[0002] Road thickness measurement is an important part of highway engineering quality control. After the cement pavement or asphalt pavement is completed, the thickness of the road pavement is measured by selecting the corresponding detection points and inserting the detection probe into the paving material. In addition, in highway construction and cost assessment, it is very important to accurately measure the thickness of the road and efficiently store and analyze the measurement data.

[0003] Most existing measuring devices use the method of squeezing and inserting directly to achieve the insertion measurement of the detection plug relative to the paving material. However, when the paving material is thick, it is difficult for the detection plug to penetrate into the bottom layer of the paving material by only pressing and inserting, which is not conducive to the efficient thickness detection of road paving materials. At the same time, the data storage and management methods are backward and cannot meet the needs of large-scale and high-frequency data collection. It is also difficult to achieve real-time analysis and remote access of data. Therefore, it is necessary to propose a thickness measurement device and data storage system for highway cost based on the Internet of Things. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and to propose a thickness measuring device and data storage system for highway construction cost based on the Internet of Things.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a thickness measuring device for highway construction cost based on the Internet of Things, including a base and a controller, a frame is fixedly provided on the base, the side end of the frame is rotatably connected to a bending frame, a controller is installed on the bending frame, a sliding frame is slidably connected to the bending frame, a rotary drum is rotatably connected to the sliding frame, an inserted detection component is arranged on the outside of the rotary drum, and the inserted detection component is electrically connected to the controller, the bending frame is provided with a driving component for simultaneously controlling the vertical movement of the sliding frame and the rotation of the rotary drum; the sliding frame is provided with a displacement sensor for recording measurement data.

[0006] Preferably, the plug-in detection component includes a detection plug slidably mounted on the outside of a rotary cylinder, a touch button is installed on the inner bottom of the detection plug, the output end of the touch button is electrically connected to the input end of the controller, the bottom of the rotary cylinder is abutted against a compression spring that presses the detection plug downward, rib teeth are formed on the side wall of the rotary cylinder, and a sliding groove is formed in the inner wall of the detection plug to limit the sliding range of the rib teeth.

[0007] Preferably, the driving component includes a shaft and a screw rotatably connected to the bending frame, and an electric control component that drives the shaft and the screw to rotate synchronously, the shaft is slidingly connected to the rotary cylinder, and the screw is screwed to the sliding frame; a displacement sensor is provided on the sliding frame.

[0008] Preferably, the electronic control component includes two wheels rotatably connected to the bending frame, and a driving motor installed on the bending frame to control the rotation of the wheels, the input end of the driving motor is electrically connected to the output end of the controller, and the outer engaging sleeves of the two wheels are provided with a chain, one of the wheels is coaxially fixed to the shaft, and the other wheel is coaxially fixed to the screw.

[0009] In this application, a data storage system for a thickness measuring device for highway cost based on the Internet of Things, the data storage system includes a data acquisition interface and a data storage module;

[0010] Data acquisition interface, used to receive the measurement data of the displacement sensor in real time and perform preprocessing operations;

[0011] The data storage module includes a local storage unit, a storage analysis unit, a storage determination unit, and a cloud storage unit;

[0012] A storage and analysis unit is used to store and analyze the measurement data of the displacement sensor to obtain thickness measurement data to be stored; and upload the thickness measurement data to be stored to a local storage unit;

[0013] The local storage unit is used to receive and store the thickness measurement data to be stored, and mark the stored thickness measurement data to be stored as thickness measurement storage data; after receiving the identification code sent by the cloud storage data, the local storage unit deletes the thickness measurement storage data corresponding to the identification code in the local storage unit, and retains the search tag of the thickness measurement storage data;

[0014] The storage determination unit is used to perform importance determination analysis on the thickness measurement storage data stored in the local storage unit to obtain a data evaluation value of the thickness measurement storage data; set a storage evaluation threshold, if the data evaluation value is greater than or equal to the storage evaluation threshold, mark the thickness measurement storage data as data to be uploaded to the cloud, sort the data to be uploaded to the cloud according to the data evaluation value to generate a list to be uploaded to the cloud; if the data evaluation value is less than the storage evaluation threshold, retain the thickness measurement storage data in the local storage unit; upload the data to be uploaded to the cloud storage unit according to the order of the list to be uploaded to the cloud for storage;

[0015] The cloud storage unit is used to receive and store the data to be uploaded to the cloud uploaded from the local storage unit, mark the data to be uploaded to the cloud stored in the cloud storage unit as cloud storage data, and generate an identification code; and feed back the identification code of the cloud storage data to the local storage unit.

[0016] Preferably, the measurement data of the displacement sensor is stored and analyzed, specifically:

[0017] The startup time of the thickness measuring device is taken as the first time, and the shutdown time of the thickness measuring device after the startup time is taken as the second time; the time zone between the first time and the second time is marked as the thickness measurement use time zone;

[0018] Extracting a thickness measurement value of the measurement object and a corresponding timestamp from the measurement data of the displacement sensor;

[0019] The time zone used for thickness measurement is divided into several measurement zones in equal amounts according to the chronological order; a zone measurement line graph is established, the thickness measurement values ​​and corresponding timestamps in the measurement zone are input into the zone measurement line graph, and the positions of the thickness measurement values ​​in the zone measurement line graph are marked as thick points; adjacent thick points are connected to obtain a thickness line and the slope of the thickness line is calculated; a positive slope is marked as a positive slope, and a negative slope is marked as a negative slope; all positive slopes and negative slopes in the measurement zone are summed up and the absolute values ​​are taken to obtain the total positive slope value , negative slope total value; set positive and negative slope change thresholds, if the positive slope total value is greater than or equal to the positive slope change threshold, mark the measurement partition as the measurement time zone; identify the positive slope of any thickness line in the measurement partition before the measurement time zone, set the positive slope change threshold, compare the positive slope of the thickness line with the positive slope change threshold, if the positive slope of the thickness line is greater than the positive slope change threshold, mark the thickness line as the measurement line, select the generation time of the thick point corresponding to the measurement line with the earliest generation time in the measurement partition and mark it as the measurement start time;

[0020] If the total negative slope value is greater than or equal to the negative slope change threshold, the measurement partition is marked as the measurement end time zone; the generation time of the minimum thickness measurement value in the measurement end time zone is marked as the measurement end time;

[0021] The time zone between the measurement start time and the measurement end time is marked as the thickness measurement data storage time zone; the thickness measurement value of the measured object in the thickness measurement data storage time zone and the corresponding timestamp are marked as thickness measurement data to be stored.

[0022] Preferably, the thickness measurement storage data stored in the local storage unit is analyzed for importance determination, specifically:

[0023] Identify the generation time of the thickness measurement storage data, and calculate the time difference between the generation time and the current time to obtain the storage time;

[0024] Identify the remaining storage space capacity within the local storage unit;

[0025] Mark the time zone between the storage time and the current time of the thickness measurement storage data as a stored time zone; identify the number of accesses to the thickness measurement storage data in the stored time zone, and obtain the access frequency by the length of time the accesses are in the stored time zone;

[0026] The data evaluation value is obtained by weighting the storage time, remaining storage space capacity, and access frequency.

[0027] Preferably, the data storage module further includes an upload analysis unit;

[0028] The upload analysis unit is used to upload the cloud upload data to the cloud storage unit for upload analysis and obtain a transmission evaluation value; set a transmission threshold, if the transmission evaluation value is less than the transmission threshold, the data transmission quality is good and the upload operation can continue; if the transmission evaluation value is greater than or equal to the transmission threshold, enter the waiting state and start counting the waiting time;

[0029] Set a waiting time threshold. If the transmission evaluation value is less than the transmission threshold within the waiting time threshold, normal data upload is resumed. If the waiting time is greater than the waiting time threshold, a transmission exception signaling is generated. The transmission exception signaling is used to trigger the signaling and the corresponding transmission evaluation value and waiting time to be sent to the corresponding maintenance personnel.

[0030] Preferably, the cloud upload data is uploaded to the cloud storage unit for upload analysis, specifically:

[0031] Identify transmission information of the data to be uploaded to the cloud storage unit, including the upload speed, bandwidth usage and download speed of the cloud storage unit during the process of uploading the data to be uploaded to the cloud storage unit;

[0032] Set the standard value of any parameter in the transmission information, and subtract the value of the corresponding parameter in the transmission information from the standard value of the parameter to obtain the parameter difference;

[0033] Set the transmission monitoring time zone, calculate the mean and standard deviation of the parameter difference within the transmission monitoring time zone to obtain the parameter difference mean and parameter difference fluctuation value;

[0034] The parameter difference, parameter difference mean, and parameter difference fluctuation value are weighted to obtain the transmission evaluation value.

[0035] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0036] 1. In the present application, when the pavement thickness of a paved road is detected, the rotary drum is controlled to rotate by a driving component, and at the same time, the sliding frame moves downward in a vertical direction, so that the insertion detection component is extended into the unsolidified concrete or asphalt pavement in a rotating state, thereby meeting the requirements of efficient insertion detection of the pavement thickness of the highway.

[0037] 2. In the present application, the contact area with the unsolidified ground is increased by the base, so as to achieve the protection of the road surface around the detection point when the equipment is in use. When the device is not in use, the bending frame is rotated to be parallel to the base, which is conducive to the storage and carrying of the detection device.

[0038] 3. In this application, the data storage module is used to realize efficient processing and storage of measurement data, accurately screen the effective parts of the measurement data, improve data accuracy, and combine local and cloud storage to realize layered storage and reasonably allocate resources. It can also ensure the upload quality of uploaded data, ensure that the data is accurate and reliable, and provide strong support for highway cost measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A three-dimensional schematic diagram of a detection device provided according to an embodiment of the present invention is shown;

[0040] Figure 2 A cross-sectional schematic diagram of a detection device provided according to an embodiment of the present invention is shown;

[0041] Figure 3 A principle block diagram of a data storage system provided according to an embodiment of the present invention is shown.

[0042] Legend:

[0043] 1. Base; 2. Stand; 3. Bending frame; 4. Sliding frame; 5. Rotating cylinder; 6. Detection plug; 601, slide groove; 7. Rib teeth; 8. Compression spring; 9. Touch button; 10. Shaft; 11. Wheel; 12. Driving motor; 13. Chain; 14. Screw; 15. Controller. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1 and Figure 2The present invention provides a technical solution: a thickness measuring device for highway cost based on the Internet of Things, including a base 1 and a controller 15, a frame 2 is fixedly provided on the base 1, a bending frame 3 is rotatably connected to the side end of the frame 2, a controller 15 is installed on the bending frame 3, a sliding frame 4 is slidably connected to the bending frame 3, a rotary drum 5 is rotatably connected to the sliding frame 4, an inserted detection component is arranged on the outer side of the rotary drum 5, and the inserted detection component is electrically connected to the controller 15, a driving component for simultaneously controlling the vertical movement of the sliding frame 4 and the rotation of the rotary drum 5 is arranged on the bending frame 3; a displacement sensor for recording measurement data is arranged on the sliding frame 4; wherein the type of the displacement sensor includes a linear displacement sensor, such as a wire-drawing displacement sensor or a magnetostrictive displacement sensor.

[0046] When it is necessary to detect the thickness of the unsolidified ground that has just been paved, it is necessary to first rotate the bending frame 3 to a vertical state, and then control the rotary drum 5 to rotate through the driving component. At the same time, the sliding frame 4 moves downward in the vertical direction under the action of the driving component, so that the inserted detection component extends into the unsolidified concrete or asphalt pavement in a rotating state, thereby meeting the requirements of efficient insertion detection of the paving thickness of the highway; at the same time, the displacement sensor on the sliding frame 4 obtains the measurement data of the device by recording its displacement, including the thickness measurement value of the measurement time and its corresponding time.

[0047] By setting the base 1, the contact area with the unsolidified ground is increased, so that the road surface around the detection point can be protected when the device is in use. By rotating the bending frame 3 to connect it to the stand 2, when the device is not in use, the bending frame 3 is rotated to be parallel to the base 1, which is conducive to the storage and carrying of the detection device.

[0048] Specifically, Figure 1 and Figure 2 As shown, the plug-in detection component includes a detection plug 6 slidably mounted on the outside of the rotary cylinder 5, a touch button 9 is installed on the inner bottom of the detection plug 6, the output end of the touch button 9 is electrically connected to the input end of the controller 15, the bottom of the rotary cylinder 5 is abutted with a compression spring 8 for pressing the detection plug 6 downward, rib teeth 7 are formed on the side wall of the rotary cylinder 5, and a slide groove 601 for limiting the sliding range of the rib teeth 7 is formed in the inner wall of the detection plug 6.

[0049] When the drum 5 moves downward, the detection plug 6 will be pressed by the compression spring 8 and will first extend downward into the paving material of the road synchronously, until the detection plug 6 slides down to the bottom layer of the paving material, and the height position of the detection plug 6 will no longer change. At this time, as the drum 5 continues to move downward, the compression spring 8 will be compressed until the bottom of the drum 5 presses down the touch button 9. After receiving the signal sent by the touch button 9, the controller 15 will control the driving component to stop running and record the descending distance of the sliding frame 4 at this time, so as to measure the thickness of the road paving material. Through the coordinated setting of the touch button 9 and the compression spring 8, the driving component can automatically stop running after the detection plug 6 reaches the detection depth, and the automatic recording of the measured value can be realized.

[0050] Specifically, Figure 1 and Figure 2 As shown, the driving component includes a shaft 10 and a screw 14 rotatably connected to the bending frame 3, and an electric control component that drives the shaft 10 and the screw 14 to rotate synchronously. The shaft 10 is slidably connected to the rotary drum 5, and the screw 14 is screwed together with the sliding frame 4; a displacement sensor is provided on the sliding frame 4.

[0051] When the shaft 10 rotates, the rotary drum 5 slidably connected to the shaft 10 will rotate synchronously therewith. Strip ribs are formed on the side wall of the shaft 10 to slide with the inner wall of the rotary drum 5, so that the shaft 10 can drive the rotary drum 5 slidably connected thereto to rotate.

[0052] When the screw 14 rotates, the sliding frame 4 will move in the vertical direction under the rotational action of the screw 14. At this time, the displacement sensor records the distance moved by the sliding frame 4 in the vertical direction and integrates it into measurement data; an open groove is formed in the bending frame 3 to cooperate with the sliding frame 4 to slide through, so that the sliding frame 4 passes through the open groove and is screwed and connected with the screw 14.

[0053] The electronic control component includes two wheel discs 11 rotatably connected to the bending frame 3, and a driving motor 12 installed on the bending frame 3 to control the rotation of the wheel discs 11, the input end of the driving motor 12 is electrically connected to the output end of the controller 15, and the outer engaging sleeves of the two wheel discs 11 are provided with a chain 13, one of the wheel discs 11 is coaxially fixed to the shaft 10, and the other wheel disc 11 is coaxially fixed to the screw 14.

[0054] The driving motor 12 is started, so that the two wheel discs 11 keep rotating synchronously under the action of the chain 13, thereby driving the shaft 10 and the screw rod 14 to keep rotating synchronously.

[0055] Specifically, Figure 3 As shown, the data storage system of the thickness measuring device for highway cost based on the Internet of Things, the data storage system is applied in the controller 15; the data storage system includes a data acquisition interface and a data storage module;

[0056] A data acquisition interface is used to receive the measurement data of the displacement sensor in real time and perform preprocessing operations; wherein the preprocessing operations include data cleaning, format unification and outlier detection;

[0057] The data storage module includes a local storage unit, a storage analysis unit, a storage determination unit, and a cloud storage unit;

[0058] A storage and analysis unit is used to store and analyze the measurement data of the displacement sensor to obtain thickness measurement data to be stored; and upload the thickness measurement data to be stored to a local storage unit;

[0059] The local storage unit is used to receive and store the thickness measurement data to be stored, and mark the stored thickness measurement data to be stored as thickness measurement storage data; after receiving the identification code sent by the cloud storage data, the local storage unit deletes the thickness measurement storage data corresponding to the identification code in the local storage unit, and retains the search tag of the thickness measurement storage data;

[0060] The storage determination unit is used to perform importance determination analysis on the thickness measurement storage data stored in the local storage unit to obtain a data evaluation value of the thickness measurement storage data; set a storage evaluation threshold, if the data evaluation value is greater than or equal to the storage evaluation threshold, mark the thickness measurement storage data as data to be uploaded to the cloud, sort the data to be uploaded to the cloud according to the data evaluation value to generate a list to be uploaded to the cloud; if the data evaluation value is less than the storage evaluation threshold, retain the thickness measurement storage data in the local storage unit; upload the data to be uploaded to the cloud storage unit according to the order of the list to be uploaded to the cloud for storage;

[0061] The cloud storage unit is used to receive and store the data to be uploaded to the cloud uploaded from the local storage unit, mark the data to be uploaded to the cloud stored in the cloud storage unit as cloud storage data, and generate an identification code; and feed back the identification code of the cloud storage data to the local storage unit.

[0062] Specifically, the measurement data of the displacement sensor is stored and analyzed, specifically:

[0063] The startup time of the thickness measuring device is taken as the first time, and the shutdown time of the thickness measuring device after the startup time is taken as the second time; the time zone between the first time and the second time is marked as the thickness measurement use time zone;

[0064] Extracting a thickness measurement value of the measurement object and a corresponding timestamp from the measurement data of the displacement sensor;

[0065] The time zone used for thickness measurement is divided into several measurement zones in equal amounts according to the chronological order; a zone measurement line graph is established, the thickness measurement values ​​and corresponding timestamps in the measurement zones are input into the zone measurement line graph, and the positions of the thickness measurement values ​​in the zone measurement line graph are marked as thick points; adjacent thick points are connected to obtain a thickness line and the slope of the thickness line is calculated; according to the positive and negative nature of the slope, a positive slope is marked as a positive slope, and a negative slope is marked as a negative slope; all positive slopes and negative slopes in the measurement zones are summed up and the absolute values ​​are obtained to obtain the total positive slope value and the total negative slope value; it needs to be said It is obvious that the total positive slope value is used to reflect the strength of the overall upward trend of the thickness measurement values ​​in the measurement zone. A larger total positive slope value may mean that the detection plug 6 is relatively smooth when extending into the road material during this time period, encountering less resistance, the material is relatively loose within this depth range, or the detection plug 6 is advancing faster. The total negative slope value reflects the strength of the overall downward trend of the thickness measurement values ​​in the measurement zone. A larger total negative slope value usually means that the detection plug encounters greater resistance near the end of the measurement zone, such as the material becomes denser when approaching the bottom layer of the road surface, or the movement of the detection plug is affected. When a certain obstacle is reached, by comparing the total negative slope value with the negative slope change threshold, it can be judged whether the measurement is nearing the end, and then the measurement end time zone can be determined; the positive and negative slope change thresholds are set, and if the total positive slope value is greater than or equal to the positive slope change threshold, the measurement partition is marked as the measurement progress time zone; it should be noted that by comparing the total positive slope value with the positive slope change threshold, it can be judged whether the measurement partition is in the measurement progress stage, that is, whether the detection plug is normally penetrating into the road surface material for measurement, thereby determining the measurement progress time zone; identify any thickness line in the measurement partition before the measurement progress time zone The positive slope of the thickness line is set, and the positive slope change threshold is set. The positive slope of the thickness line is compared with the positive slope change threshold. If the positive slope of the thickness line is greater than the positive slope change threshold, the thickness line is marked as the measurement line, and the generation time of the thick point corresponding to the measurement line with the earliest generation time in the measurement partition is selected as the measurement start time; it should be noted that the determination of the measurement start time helps to accurately define the starting point of the valid data in the measurement process, and excludes unstable data that may exist in the initial stage of measurement or data that is irrelevant to the actual road thickness measurement, such as data in the uneven road surface or the initial adjustment stage of the measurement device;

[0066] If the total negative slope value is greater than or equal to the negative slope change threshold, the measurement partition is marked as the measurement end time zone; it should be noted that because the larger total negative slope value indicates that the detection plug encounters greater resistance in the partition, it may be due to the increase in material density when approaching the bottom layer of the road surface. For example, for cement concrete pavement, the hardness of the concrete is greater when approaching the bottom layer, and the detection plug 6 is difficult to insert, and the total negative slope value will increase significantly. By comparing with the negative slope change threshold of the total negative slope value, it is possible to accurately judge whether the measurement is close to the end, thereby determining the measurement end time zone; the generation time of the minimum thickness measurement value in the measurement end time zone is marked as the measurement end time; wherein, the measurement end time marks the time point when the detection plug 6 extends into the deepest position (i.e., the bottom layer of the road surface) in the road surface material, which is crucial for accurately determining the thickness of the highway road surface. Determining the measurement end time helps to accurately define the end stage of the measurement process, ensure that the stored data can accurately reflect the road surface thickness, and provide reliable data support for subsequent highway cost calculations and road surface quality assessments;

[0067] Mark the time zone between the measurement start time and the measurement end time as the thickness measurement data storage time zone; mark the thickness measurement value of the measured object in the thickness measurement data storage time zone and the corresponding timestamp as thickness measurement data to be stored;

[0068] It should be noted that the purpose of determining the storage time zone for thickness measurement data is to select valid data segments that are truly closely related to the measurement of road pavement thickness from the time series of the entire measurement process. During the measurement process, there may be an unstable stage at the initial startup of the measurement device (such as equipment self-test, initial positioning, etc.) and invalid data that may appear after the measurement is completed (such as abnormal data after the detection plug 6 completely exceeds the road surface). By determining this storage time zone, the interference of these irrelevant data can be effectively eliminated; the thickness measurement value and the corresponding timestamp of the measured object in the storage time zone are marked as thickness measurement data to be stored, so that subsequent data processing and analysis can directly focus on this. The timestamp gives each thickness measurement value information of the time dimension, which can not only reflect the thickness change of the road surface at different times, but also can be used to study the dynamic characteristics of the measurement process in subsequent analysis. For example, by analyzing the change trend of the thickness measurement value over time, the compaction of the road surface material during the paving process can be judged. If the thickness measurement value gradually decreases within a certain period of time, it may mean that the road surface material in the area is being compacted, which can effectively evaluate the quality of road construction. In addition, when calculating the cost of highway construction, accurate thickness measurement values ​​and their corresponding timestamps can help engineers more accurately calculate the material usage and cost of different construction stages.

[0069] From the above, it can be seen that the purpose of storing and analyzing the measurement data of the displacement sensor is to screen out valuable data that needs to be stored from a large amount of measurement data, improve storage efficiency and data availability. Through this analysis method, the effective time period in the measurement process, that is, the thickness measurement data storage time zone, can be determined, so that only the data within this time period is stored, avoiding the storage of irrelevant or low-value data.

[0070] Specifically, the thickness measurement storage data stored in the local storage unit is analyzed for importance, specifically:

[0071] Identify the generation time of the thickness measurement storage data, calculate the time difference between the generation time and the current time to obtain the stored time length Y1;

[0072] Identify the remaining storage space capacity Y2 in the local storage unit;

[0073] Mark the time zone between the storage time of the thickness measurement storage data and the current time as the stored time zone; identify the number of accesses to the thickness measurement storage data in the stored time zone, and obtain the access frequency Y3 by the length of time the accesses are in the stored time zone;

[0074] The data evaluation value Y is obtained by weighting the storage time, remaining storage space capacity, and access frequency. The formula is: Among them, f1, f3, and f2 represent the weights corresponding to the storage duration, the remaining storage space capacity, and the access frequency, respectively.

[0075] It should be noted that by conducting importance determination and analysis on the thickness measurement storage data in the local storage unit, it is helpful to reasonably allocate storage resources and determine which thickness test storage data need to be uploaded to the cloud storage unit first and which data can be temporarily retained in the local storage unit. This mechanism can effectively improve the efficiency of the storage system, avoid overloading the local storage unit, and ensure that important data is properly stored.

[0076] Specifically, the data storage module also includes an upload analysis unit;

[0077] The upload analysis unit is used to upload the cloud upload data to the cloud storage unit for upload analysis and obtain a transmission evaluation value; set a transmission threshold, if the transmission evaluation value is less than the transmission threshold, the data transmission quality is good and the upload operation can continue; if the transmission evaluation value is greater than or equal to the transmission threshold, enter the waiting state and start counting the waiting time;

[0078] A waiting time threshold is set. If the transmission evaluation value is less than the transmission threshold within the waiting time threshold, normal data upload is resumed. If the waiting time is greater than the waiting time threshold, a transmission exception signaling is generated. The transmission exception signaling is used to trigger the signaling and the corresponding transmission evaluation value and waiting time to be sent to the corresponding maintenance personnel, so as to promptly notify the maintenance personnel to handle the transmission exception and improve the reliability and stability of the system. By setting a waiting time threshold, a certain buffer time is provided for data transmission to avoid misjudgment of transmission abnormality due to short-term network fluctuations or other temporary factors.

[0079] Specifically, the cloud upload data is uploaded to the cloud storage unit for upload analysis, specifically:

[0080] Identify transmission information of the data to be uploaded to the cloud storage unit, including the upload speed, bandwidth usage and download speed of the cloud storage unit during the process of uploading the data to be uploaded to the cloud storage unit;

[0081] Set a standard value for any parameter in the transmission information, and subtract the value of the corresponding parameter in the transmission information from the standard value of the parameter to obtain a parameter difference; the parameter difference is used to determine the degree of deviation between the actual transmission parameter and the standard value;

[0082] Set the transmission monitoring time zone, calculate the mean and standard deviation of the parameter difference in the transmission monitoring time zone to obtain the parameter difference mean and parameter difference fluctuation value; the parameter difference mean and parameter difference fluctuation value are used to reflect the average level and fluctuation of the parameter difference in the transmission monitoring time zone, providing a more comprehensive basis for evaluating the transmission quality;

[0083] The parameter difference, parameter difference mean, and parameter difference fluctuation value are weighted to obtain the transmission evaluation value.

[0084] It should be noted that through the fine monitoring and analysis of the upload analysis unit, as well as the reasonable transmission threshold and waiting mechanism, the transmission quality of the data to be uploaded to the cloud can be effectively guaranteed, the efficiency and reliability of data storage can be improved, and strong support can be provided for the data storage and management of the thickness measurement device for highway cost.

[0085] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thickness measuring device for highway cost based on the Internet of Things, comprising a base (1) and a controller (15), characterized in that: A stand (2) is fixedly provided on the base (1), the side end of the stand (2) is rotatably connected to a bending frame (3), a controller (15) is installed on the bending frame (3), a sliding frame (4) is slidably connected to the bending frame (3), a rotary drum (5) is rotatably connected to the sliding frame (4), an insertable detection component is provided on the outer side of the rotary drum (5), and the insertable detection component is electrically connected to the controller (15), the bending frame (3) is provided with a driving component for simultaneously controlling the vertical movement of the sliding frame (4) and the rotation of the rotary drum (5); and a displacement sensor for recording measurement data is provided on the sliding frame (4).

2. The thickness measuring device for highway cost based on the Internet of Things according to claim 1 is characterized in that: The plug-in detection component comprises a detection plug (6) slidably mounted on the outside of a rotary cylinder (5); a touch button (9) is installed on the inner bottom of the detection plug (6); the output end of the touch button (9) is electrically connected to the input end of a controller (15); a compression spring (8) is abutted against the bottom of the rotary cylinder (5) for pressing the detection plug (6) downward; rib teeth (7) are formed on the side wall of the rotary cylinder (5); and a sliding groove (601) for limiting the sliding range of the rib teeth (7) is formed in the inner wall of the detection plug (6).

3. The thickness measuring device for highway cost based on Internet of Things according to claim 1 is characterized in that: The driving component comprises a shaft (10) and a screw (14) rotatably connected to the bending frame (3), and an electric control component driving the shaft (10) and the screw (14) to rotate synchronously, the shaft (10) being slidably connected to the rotary cylinder (5), and the screw (14) being screwedly connected to the sliding frame (4).

4. The thickness measuring device for highway cost based on Internet of Things according to claim 3 is characterized in that: The electric control component comprises two wheels (11) rotatably connected to the bending frame (3), and a driving motor (12) installed on the bending frame (3) to control the rotation of the wheels (11), the input end of the driving motor (12) is electrically connected to the output end of the controller (15), and the outer engaging sleeves of the two wheels (11) are provided with a chain (13), one of the wheels (11) is coaxially fixed to the shaft (10), and the other wheel (11) is coaxially fixed to the screw (14).

5. A data storage system for a thickness measuring device for highway construction cost based on the Internet of Things, using the thickness measuring device for highway construction cost based on the Internet of Things as claimed in any one of claims 1 to 4, wherein the data storage system is applied to a controller (15), characterized in that: The data storage system includes a data acquisition interface and a data storage module; The data acquisition interface is used to receive the measurement data of the displacement sensor in real time and perform preprocessing operations; the data storage module includes a local storage unit, a storage analysis unit, a storage determination unit, and a cloud storage unit; A storage and analysis unit, used for storing and analyzing the measurement data of the displacement sensor to obtain thickness measurement data to be stored; Upload the thickness measurement data to be stored to the local storage unit; The local storage unit is used to receive and store the thickness measurement data to be stored, and mark the stored thickness measurement data to be stored as thickness measurement storage data; after receiving the identification code sent by the cloud storage data, the local storage unit deletes the thickness measurement storage data corresponding to the identification code in the local storage unit, and retains the search tag of the thickness measurement storage data; A storage determination unit, used to perform importance determination analysis on the thickness measurement storage data stored in the local storage unit to obtain a data evaluation value of the thickness measurement storage data; A storage evaluation threshold is set. If the data evaluation value is greater than or equal to the storage evaluation threshold, the thickness measurement storage data is marked as data to be uploaded to the cloud, and the data to be uploaded to the cloud are sorted according to the data evaluation value to generate a list to be uploaded to the cloud; If the data evaluation value is less than the storage evaluation threshold, the thickness measurement storage data is retained in the local storage unit; the cloud upload data is uploaded to the cloud storage unit for storage in the order of the cloud upload list; The cloud storage unit is used to receive and store the data to be uploaded to the cloud uploaded from the local storage unit, mark the data to be uploaded to the cloud stored in the cloud storage unit as cloud storage data, and generate an identification code; and feed back the identification code of the cloud storage data to the local storage unit.

6. The data storage system of the thickness measuring device for highway cost based on the Internet of Things according to claim 5 is characterized in that: The measurement data of the displacement sensor is stored and analyzed, specifically: The startup time of the thickness measuring device is taken as the first time, and the shutdown time of the thickness measuring device after the startup time is taken as the second time; the time zone between the first time and the second time is marked as the thickness measurement use time zone; Extracting a thickness measurement value of the measurement object and a corresponding timestamp from the measurement data of the displacement sensor; Divide the time zone used for thickness measurement into several measurement zones in equal amounts according to the time sequence; Establish a partition measurement line graph, input the thickness measurement value and the corresponding timestamp in the measurement partition into the partition measurement line graph, and mark the position of the thickness measurement value in the partition measurement line graph as a thick point; connect adjacent thick points to obtain a thickness line and calculate the slope of the thickness line; mark a positive slope as a positive slope, and mark a negative slope as a negative slope; sum up all positive slopes and negative slopes in the measurement partition and obtain the total positive slope value and the total negative slope value by taking the absolute value; set positive and negative slope change thresholds, and if the total positive slope value is greater than or equal to the positive slope change threshold, mark the measurement partition as a measurement time zone; identify the positive slope of any thickness line in the measurement partition before the measurement time zone, set a positive slope change threshold, compare the positive slope of the thickness line with the positive slope change threshold, and if the positive slope of the thickness line is greater than the positive slope change threshold, mark the thickness line as a measurement line, and select the generation time of the thick point corresponding to the measurement line with the earliest generation time in the measurement partition as the measurement start time; If the total negative slope value is greater than or equal to the negative slope change threshold, the measurement partition is marked as the measurement end time zone; the generation time of the minimum thickness measurement value in the measurement end time zone is marked as the measurement end time; Mark the time zone between the measurement start time and the measurement end time as the thickness measurement data storage time zone; The thickness measurement value of the measurement object within the thickness measurement data storage time zone and the corresponding timestamp are marked as thickness measurement data to be stored.

7. The data storage system of the thickness measuring device for highway cost based on the Internet of Things according to claim 5 is characterized in that: The importance determination and analysis of the thickness measurement storage data stored in the local storage unit is carried out, specifically: Identify the generation time of the thickness measurement storage data, and calculate the time difference between the generation time and the current time to obtain the storage time; Identify the remaining storage space capacity within the local storage unit; Mark the time zone between the storage time and the current time of the thickness measurement storage data as a stored time zone; identify the number of accesses to the thickness measurement storage data in the stored time zone, and obtain the access frequency by the length of time the accesses are in the stored time zone; The data evaluation value is obtained by weighting the storage time, remaining storage space capacity, and access frequency.

8. The data storage system of the thickness measuring device for highway cost based on the Internet of Things according to claim 1 is characterized in that: The data storage module also includes an upload analysis unit; An upload analysis unit, used for uploading the cloud upload data to the cloud storage unit for upload analysis to obtain a transmission evaluation value; Set the transmission threshold. If the transmission evaluation value is less than the transmission threshold, the data transmission quality is good and the upload operation can continue. If the transmission evaluation value is greater than or equal to the transmission threshold, the system enters the waiting state and starts counting the waiting time. Set a waiting time threshold. If the transmission evaluation value is less than the transmission threshold within the waiting time threshold, normal data upload is resumed; if the waiting time is greater than the waiting time threshold, a transmission abnormality signal is generated. The transmission abnormality signaling is used to trigger the sending of the signaling and the corresponding transmission evaluation value and waiting time to the corresponding maintenance personnel.

9. The data storage system of the thickness measuring device for highway cost based on the Internet of Things according to claim 8 is characterized in that: The cloud upload data is uploaded to the cloud storage unit for upload analysis, specifically: Identify transmission information of the data to be uploaded to the cloud storage unit, including the upload speed, bandwidth usage and download speed of the cloud storage unit during the process of uploading the data to be uploaded to the cloud storage unit; Set the standard value of any parameter in the transmission information, and subtract the value of the corresponding parameter in the transmission information from the standard value of the parameter to obtain the parameter difference; Set the transmission monitoring time zone, calculate the mean and standard deviation of the parameter difference within the transmission monitoring time zone to obtain the parameter difference mean and parameter difference fluctuation value; The parameter difference, parameter difference mean, and parameter difference fluctuation value are weighted to obtain the transmission evaluation value.

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