A road maintenance method and system based on highly elastic potting compound

Abstract

This invention relates to the field of road maintenance technology, specifically a road maintenance method and system based on a highly elastic potting compound. The method includes: determining a maintenance area; statistically analyzing a set of roads to be maintained within that area; capturing satellite images of the roads to be maintained to obtain spectral images; assessing road aging values ​​based on the spectral images; obtaining an environmental change coefficient set; calculating the road damage rate based on the road aging value and the environmental change coefficient set; determining whether the road damage rate exceeds a standard damage rate; if so, calculating the coverage thickness and coverage benefit value of candidate roads to be maintained; prioritizing the candidate roads based on the coverage benefit value set to obtain a priority maintenance road set; and applying an optimized potting compound to the priority maintenance road set to obtain the target road set. This invention optimizes maintenance efficiency and improves road lifespan.

Description

Technical Field

[0001] This invention relates to the field of road maintenance technology, and in particular to a road maintenance method and system based on a highly elastic potting compound. Background Technology

[0002] With the acceleration of urbanization and the increasing volume of transportation, the maintenance of roads, as a crucial infrastructure, is of paramount importance. Good road conditions not only ensure traffic safety and reduce traffic accidents but also improve transportation efficiency and lower vehicle operating and maintenance costs. Therefore, conducting road maintenance scientifically and rationally is of irreplaceable significance for the convenience of daily life.

[0003] Currently, common road maintenance techniques mainly rely on regular manual inspections and simple potting compound repairs. However, this maintenance method has obvious limitations. Manual inspections are difficult to fully and timely detect early road defects, resulting in many problems not being properly addressed in the early stages. This exacerbates the degree of road damage and increases the cost of road maintenance. Furthermore, traditional potting compounds are mainly used to fill cracks and lack the ability to improve the overall performance of the road or provide preventative protection. They cannot effectively slow down the aging and damage process of the road, resulting in a relatively short service life for the road. Summary of the Invention

[0004] This invention provides a road maintenance method and system based on highly elastic potting compound, the main purpose of which is to optimize maintenance efficiency and improve the service life of roads.

[0005] To achieve the above objectives, the present invention provides a road maintenance method based on a highly elastic potting compound, comprising:

[0006] Receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and each road to be maintained is a road segment in the area to be maintained.

[0007] The roads to be maintained are extracted sequentially from the set of roads to be maintained, satellite images are taken of the roads to be maintained to obtain road spectral images, and road aging is assessed based on the road spectral images to obtain road aging values.

[0008] Based on a preset maintenance cycle, environmental prediction is performed on the road to be maintained to obtain a set of environmental change coefficients, which includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient.

[0009] Based on the road aging value and environmental change coefficient group, road damage is predicted for the road to be maintained, the road damage rate is obtained, and it is determined whether the road damage rate is greater than the preset standard damage rate.

[0010] If it is confirmed that the road damage rate is greater than the standard damage rate, the road to be maintained is recorded as a candidate road for maintenance, and the pre-acquired high-elasticity potting compound is modified to obtain an optimized potting compound.

[0011] Based on the road damage rate and the standard damage rate, the coverage thickness and coverage benefit value of the candidate maintenance roads are calculated. The candidate maintenance roads, coverage thickness and coverage benefit values ​​are summarized to obtain the candidate maintenance road set, the coverage thickness set and the coverage benefit value set.

[0012] The candidate maintenance road set is prioritized according to the coverage benefit value set to obtain the priority maintenance road set. Among them, the priority maintenance road with the smaller sequence number in the priority maintenance road set has a higher maintenance priority.

[0013] Based on the coverage thickness set and the optimized potting compound, the priority maintenance road set is covered with potting compound to obtain the target road set, and road maintenance based on the high elasticity potting compound is completed based on the target road set.

[0014] Optionally, the step of assessing the road aging of the road to be maintained based on the road spectral image to obtain the road aging value includes:

[0015] Determine the spectral band group in the road spectral image, wherein the road spectral image includes multiple spectral image layers, and each spectral image layer corresponds to a spectral band;

[0016] Spectral bands are extracted sequentially from the spectral band group, and the road reflectance of the road to be maintained in the spectral image layer corresponding to the spectral band is identified. The road reflectance is then summarized to obtain the road reflectance group.

[0017] Obtain a set of historical spectral images of the road to be maintained, and based on the set of historical spectral images, identify groups of bands with significant changes in the spectral bands, wherein the groups of bands with significant changes include one or more bands with significant changes.

[0018] In the road reflectivity group, identify the significantly changed reflectivity group corresponding to the significantly changed band group;

[0019] Road aging values ​​are calculated based on significantly changed reflectance groups.

[0020] Optionally, identifying significantly changing band groups within the spectral band group based on historical spectral image sets includes:

[0021] Historical spectral images are extracted sequentially from the historical spectral image set, wherein the historical spectral images and the road spectral images have the same spectral band group;

[0022] Based on the spectral band group, the historical reflectance group of the historical spectral image is identified, and the historical reflectance group is summarized to obtain the historical reflectance group set, wherein the historical reflectance in the historical reflectance group corresponds one-to-one with the spectral band in the spectral band group.

[0023] Spectral bands are extracted sequentially from the spectral band group, and the corresponding set of reflectance of the same band is identified in the historical reflectance set.

[0024] The standard deviation of all reflectance in the same band is calculated to obtain the standard deviation of the same band. The standard deviations of the same band are summarized to obtain the standard deviation group of the same band, wherein one standard deviation of the same band corresponds to one spectral band.

[0025] Based on the standard deviation group of the same band, identify the band group with significant changes in the spectral band group.

[0026] Optionally, the step of identifying significantly varying band groups within the spectral band group based on the standard deviation group of the same band includes:

[0027] Set a standard deviation threshold and determine whether there is a standard deviation in the same band that is greater than the standard deviation threshold.

[0028] If there is a standard deviation in the same band that is greater than the standard deviation threshold, then the standard deviation in the same band that is greater than the standard deviation threshold is recorded as a significant standard deviation.

[0029] If there is no standard deviation in the same band that is greater than the standard deviation threshold, then the maximum standard deviation in the same band standard deviation group is identified and the maximum standard deviation is recorded as the significant standard deviation.

[0030] By summarizing the significant standard deviations, a group of significant standard deviations is obtained. Then, the group of significant change bands corresponding to the significant standard deviations is determined in the group of spectral bands.

[0031] Optionally, calculating the road aging value based on a group of significantly changed reflectance includes:

[0032] Extract significantly different reflectance values ​​sequentially from the group of significantly different reflectance values, and determine the significantly different wavebands corresponding to the significantly different reflectance values;

[0033] Plot the reflectance wavelength curve for the significantly changing wavelength band, wherein the reflectance wavelength curve is a curve of reflectance changing with wavelength, and the horizontal axis of the reflectance wavelength curve is wavelength, and the vertical axis is reflectance;

[0034] Determine the first derivative curve of the reflectivity wavelength curve, wherein the horizontal axis of the first derivative curve is wavelength and the vertical axis is the first derivative of reflectivity with respect to wavelength, and determine the changing trend of the first derivative curve, wherein the changing trend includes: an increasing trend and a decreasing trend;

[0035] If the trend of the first derivative curve is an increasing trend, then the significant change in reflectance is recorded as the promoting reflectance.

[0036] If the trend of the first derivative curve is downward, then the significant change in reflectance is recorded as the suppressed reflectance.

[0037] The promoting and inhibiting reflectance values ​​are summarized separately to obtain a promoting reflectance group and an inhibiting reflectance group. Based on the promoting and inhibiting reflectance groups, the road aging value is calculated using the following formula:

[0038] ;

[0039] in, Indicates the road aging value. This indicates the number of reflectance-enhancing elements in the reflectance-enhancing group. Indicates the first in the group that promotes reflectivity One that promotes reflectivity, This indicates the number of suppressed reflectance values ​​in the suppressed reflectance group. Indicates the first in the group of suppressed reflectivity One suppressive reflectivity, This represents the sum of all promoted reflectances in the promoted reflectance group and all suppressed reflectances in the suppressed reflectance group.

[0040] Optionally, the step of performing environmental prediction on the road to be maintained based on a preset maintenance cycle to obtain a set of environmental change coefficients includes:

[0041] The current period is identified, and the current environmental parameter set for the current period is obtained, wherein the current environmental parameter set includes: current period temperature, current period traffic flow, and current period rainfall;

[0042] Environmental parameters are predicted for the maintenance cycle to obtain a set of maintenance environmental parameters, which includes: temperature during the maintenance cycle, traffic flow during the maintenance cycle, and rainfall during the maintenance cycle.

[0043] Based on the current environmental parameter set and the maintenance environmental parameter set, calculate the temperature change coefficient, traffic flow change coefficient and rainfall change coefficient, where the temperature change coefficient, traffic flow change coefficient and rainfall coefficient are the ratios of the maintenance cycle temperature to the current cycle temperature, the maintenance cycle traffic flow to the current cycle traffic flow, and the maintenance cycle rainfall to the current cycle rainfall, respectively.

[0044] By summing up the temperature change coefficient, traffic flow change coefficient, and rainfall change coefficient, a set of environmental change coefficients is obtained.

[0045] Optionally, the step of predicting road damage to the road to be maintained based on road aging values ​​and environmental change coefficients to obtain the road damage rate includes:

[0046] The road surface parameters of the road to be maintained are detected to obtain a road surface parameter set, which includes: road surface thickness, road surface porosity and road surface skid resistance value.

[0047] Set the daily pavement wear thickness of the road to be maintained;

[0048] Based on the daily pavement loss thickness, pavement parameter set, environmental change coefficient set, and road aging value, the road damage rate is calculated using the following formula:

[0049] ;

[0050] in, Indicates road damage rate, Represents the natural constant. This indicates the preset thickness coefficient. Indicates road surface thickness. Indicates the thickness of road surface wear per day. This indicates the number of days in the maintenance cycle. Indicates the road surface skid resistance value. Indicates the pavement gap ratio of the road surface. This indicates the preset aging coefficient. Represents the first in the group of environmental change coefficients Environmental change coefficient.

[0051] Optionally, the modification of the pre-obtained high-elasticity potting compound to obtain an optimized potting compound includes:

[0052] The optimized material group was identified, which includes: nano-silica, silicon carbide, cerium oxide, titanium dioxide, silane coupling agent KH-560, graphene, benzotriazole UV-326, HDI trimer and polyether modified silicone oil.

[0053] The optimized material group is added to the pre-obtained high-elasticity potting compound to obtain the optimized potting compound, wherein the high-elasticity potting compound is a polyurethane-based high-elasticity potting compound.

[0054] Optionally, the calculation of the coverage thickness and coverage benefit value of candidate roads for maintenance based on road damage rate and standard damage rate includes:

[0055] Calculate the coverage thickness using the following formula:

[0056] ;

[0057] in, Indicates the coverage thickness. Represents the natural logarithm. Indicates the standard damage rate. Indicates the initial design thickness;

[0058] The road area of ​​the road to be maintained is measured, and the road grade weight of the road to be maintained is determined, wherein the road grade weight includes: arterial road grade weight, secondary arterial road grade weight and local road grade weight;

[0059] Based on the road area and road grade weights, the coverage benefit value is calculated using the following formula:

[0060] ;

[0061] in, Indicates the coverage benefit value. This indicates an optimization of the potting compound's density. Indicates the road area. This indicates the weight of the road grade.

[0062] To achieve the above objectives, the present invention also provides a road maintenance system based on a highly elastic potting compound, comprising:

[0063] The road aging assessment module is used to receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and each road to be maintained is a road segment in the area to be maintained. The road to be maintained is extracted sequentially from the set of roads to be maintained, and satellite images are taken of the roads to be maintained to obtain road spectral images. Based on the road spectral images, the road aging assessment is performed on the roads to be maintained to obtain road aging values.

[0064] The road damage comparison module is used to predict the environment of the road to be maintained based on a preset maintenance cycle, and obtain a set of environmental change coefficients, wherein the set of environmental change coefficients includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient. Based on the road aging value and the set of environmental change coefficients, the module predicts the road damage of the road to be maintained, obtains the road damage rate, and determines whether the road damage rate is greater than the preset standard damage rate.

[0065] The maintenance strategy formulation module is used to record the road to be maintained as a candidate maintenance road if it is confirmed that the road damage rate is greater than the standard damage rate, modify the pre-acquired high elasticity potting compound to obtain an optimized potting compound, calculate the coverage thickness and coverage benefit value of the candidate maintenance roads based on the road damage rate and the standard damage rate, and summarize the candidate maintenance roads, coverage thickness and coverage benefit value respectively to obtain a set of candidate maintenance roads, a set of coverage thickness and a set of coverage benefit values.

[0066] The candidate road maintenance module is used to prioritize the candidate maintenance road set according to the coverage benefit value set to obtain the priority maintenance road set. The priority maintenance road set has a higher maintenance priority because the smaller the sequence number of the priority maintenance road set is. The priority maintenance road set is covered with potting compound according to the coverage thickness set and the optimized potting compound to obtain the target road set.

[0067] To address the above problems, the present invention also provides an electronic device, the electronic device comprising:

[0068] Memory, storing at least one instruction;

[0069] The processor executes the instructions stored in the memory to implement the road maintenance method based on highly elastic potting compound described above.

[0070] To address the aforementioned problems, the present invention also provides a computer-readable storage medium storing at least one instruction, which is executed by a processor in an electronic device to implement the road maintenance method based on highly elastic potting compound described above.

[0071] To address the problems described in the background section, this invention first utilizes satellite imagery to acquire road spectral images and then uses these images to assess road aging. This provides a comprehensive and objective understanding of the current aging status of roads requiring maintenance. Compared to traditional on-site manual inspections, satellite imagery is not limited by terrain or traffic conditions and can quickly acquire a large amount of road information. The road aging values ​​obtained through spectral image analysis allow maintenance work to take appropriate measures for roads with varying degrees of aging, improving maintenance efficiency and effectiveness. Next, environmental prediction is performed based on the maintenance cycle to obtain a set of environmental change coefficients. This process helps to understand the environmental changes the road may face in the future. By obtaining these environmental change coefficients, future road damage trends can be predicted more accurately, thereby enhancing the foresight and adaptability of road maintenance. Based on the road aging values ​​and the environmental change coefficient set, road damage is predicted to obtain the road damage rate, and it is determined whether this rate exceeds the standard damage rate. This step achieves a quantitative assessment of the future degree of road damage. By comparing this rate with the standard damage rate… This method can clearly identify which roads require maintenance, avoiding the subjectivity and uncertainty of relying solely on experience. It prioritizes roads that truly require maintenance, improving the overall quality of road maintenance and the efficiency of resource utilization. When it is confirmed that the road damage rate is greater than the standard damage rate, the high-elasticity potting compound is modified to obtain an optimized potting compound. This step modifies the traditional potting compound, giving the optimized compound better adaptability. Next, based on the road damage rate and the standard damage rate, the coverage thickness and coverage benefit value of candidate maintenance roads are calculated. By calculating the coverage thickness, it is ensured that an appropriate amount of potting compound is used during maintenance, while the calculation of the coverage benefit value quantifies the value of maintenance work, allowing maintenance personnel to clearly understand the input-output ratio of each road maintenance segment, thereby achieving optimal resource allocation and maximizing maintenance benefits. Then, the candidate maintenance road set is prioritized to obtain a priority maintenance road set. This prioritization process ensures that maintenance work prioritizes roads with higher coverage benefit values, thereby ensuring that limited maintenance resources are first invested in road sections that will produce the most significant results. Finally, an optimized potting compound is used to cover the priority maintenance road sections. This step innovatively applies potting compound, traditionally used only for filling cracks, to preventative road maintenance, effectively protecting the roads before serious damage occurs and thus extending their service life. Therefore, this invention optimizes maintenance efficiency and improves road lifespan. Attached Figure Description

[0072] Figure 1 This is a schematic flowchart of a road maintenance method based on highly elastic potting compound according to an embodiment of the present invention;

[0073] Figure 2This is a functional block diagram of a road maintenance system based on a highly elastic potting compound, provided in an embodiment of the present invention.

[0074] Figure 3 This is a schematic diagram of the structure of an electronic device for implementing the road maintenance method based on highly elastic potting compound, according to an embodiment of the present invention.

[0075] Explanation of reference numerals in the attached figures:

[0076] 10. Electronic device; 11. Processor; 12. Memory; 13. Bus.

[0077] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0078] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0079] This application provides a road maintenance method based on highly elastic potting compound. The executing entity of the road maintenance method based on highly elastic potting compound includes, but is not limited to, at least one of the following electronic devices that can be configured to execute the method provided in this application: a server, a terminal, etc. In other words, the road maintenance method based on highly elastic potting compound can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0080] Reference Figure 1 The diagram shown is a schematic flowchart of a road maintenance method based on a highly elastic potting compound according to an embodiment of the present invention. In this embodiment, the road maintenance method based on a highly elastic potting compound includes:

[0081] S1. Receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and each road to be maintained is a road segment in the area to be maintained.

[0082] Understandably, the road maintenance instruction refers to a human-initiated instruction to maintain roads in a specific area, the area to be maintained refers to the specific area included in the road maintenance instruction, and the set of roads to be maintained refers to the collection of various road segments in the specific area.

[0083] For example, in region A, there are multiple main roads, multiple secondary roads and multiple branch roads, which together constitute the set of roads to be maintained.

[0084] S2. Extract the roads to be maintained sequentially from the set of roads to be maintained, take satellite images of the roads to be maintained to obtain road spectral images, and conduct road aging assessment based on the road spectral images to obtain road aging values.

[0085] It should be explained that the road spectral image refers to the spectral image of the road to be maintained, which is captured by a remote sensing satellite. This road spectral image contains multiple image layers, each with corresponding spectral bands. Since road reflectivity increases with the degree of road aging, the degree of aging of the road to be maintained can be analyzed by observing the changes in reflectivity under different spectral bands. Road reflectivity refers to the ratio of the light flux reflected from the road surface to the light flux incident on the road surface, and this road reflectivity can be obtained from the road's spectral image. It is understood that the road aging value refers to a numerical value that measures the degree of aging of the road to be maintained; the higher the degree of aging of the road to be maintained, the greater the road aging value.

[0086] Specifically, the process of assessing road aging based on road spectral images to obtain road aging values ​​includes:

[0087] Determine the spectral band group in the road spectral image, wherein the road spectral image includes multiple spectral image layers, and each spectral image layer corresponds to a spectral band;

[0088] Spectral bands are extracted sequentially from the spectral band group, and the road reflectance of the road to be maintained in the spectral image layer corresponding to the spectral band is identified. The road reflectance is then summarized to obtain the road reflectance group.

[0089] Obtain a set of historical spectral images of the road to be maintained, and based on the set of historical spectral images, identify groups of bands with significant changes in the spectral bands, wherein the groups of bands with significant changes include one or more bands with significant changes.

[0090] In the road reflectivity group, identify the significantly changed reflectivity group corresponding to the significantly changed band group;

[0091] Road aging values ​​are calculated based on significantly changed reflectance groups.

[0092] Understandably, the spectral band group refers to the combination of all light bands contained in the road spectral image. Therefore, road reflectance refers to the average reflectance of the road to be maintained in the spectral image. Since the spectral image includes multiple wavelengths, and the reflectance of the road is different for each wavelength, the road reflectance is the average of the reflectance corresponding to all wavelengths. The reflectance mentioned later has a definition with an average value. The historical spectral image set refers to the collection of spectral images of the road to be maintained obtained in previous periods. The significantly changing band group refers to the combination of multiple significantly changing bands, and the significantly changing band refers to the spectral band with obvious changes in the spectral band group. Here, obvious change means that the standard deviation between the reflectance corresponding to different wavelengths within the spectral band is greater than the standard deviation threshold. Since there are spectral bands in the spectral band group with insignificant reflectance changes, and such spectral bands can provide limited aging information, aging values ​​are identified only based on the significantly changing bands.

[0093] Furthermore, to ensure the accuracy of subsequent reflectance analysis, the historical spectral images and road spectral images here should be taken under similar lighting conditions and environments. For example, if the road spectral image is taken under sunny conditions, then the obtained historical spectral image should also be taken under sunny conditions for the road to be maintained.

[0094] Specifically, the identification of significantly changed band groups within the spectral band group based on historical spectral image sets includes:

[0095] Historical spectral images are extracted sequentially from the historical spectral image set, wherein the historical spectral images and the road spectral images have the same spectral band group;

[0096] Based on the spectral band group, the historical reflectance group of the historical spectral image is identified, and the historical reflectance group is summarized to obtain the historical reflectance group set, wherein the historical reflectance in the historical reflectance group corresponds one-to-one with the spectral band in the spectral band group.

[0097] Spectral bands are extracted sequentially from the spectral band group, and the corresponding set of reflectance of the same band is identified in the historical reflectance set.

[0098] The standard deviation of all reflectance in the same band is calculated to obtain the standard deviation of the same band. The standard deviations of the same band are summarized to obtain the standard deviation group of the same band, wherein one standard deviation of the same band corresponds to one spectral band.

[0099] Based on the standard deviation group of the same band, identify the band group with significant changes in the spectral band group.

[0100] Understandably, the historical reflectance set refers to the combination of reflectance in each spectral band of a historical spectral image, and the same-band reflectance set refers to a collection of multiple same-band reflectances. Specifically, the same-band reflectance refers to the set of all reflectances in the spectral band within the historical reflectance set, and the same-band reflectances in the same-band reflectance set come from different historical reflectance sets within the historical reflectance set. The same-band standard deviation refers to the standard deviation of all same-band reflectances in the same-band reflectance set.

[0101] Specifically, the identification of significantly varying band groups within a spectral band group based on the standard deviation group of the same band includes:

[0102] Set a standard deviation threshold and determine whether there is a standard deviation in the same band that is greater than the standard deviation threshold.

[0103] If there is a standard deviation in the same band that is greater than the standard deviation threshold, then the standard deviation in the same band that is greater than the standard deviation threshold is recorded as a significant standard deviation.

[0104] If there is no standard deviation in the same band that is greater than the standard deviation threshold, then the maximum standard deviation in the same band standard deviation group is identified and the maximum standard deviation is recorded as the significant standard deviation.

[0105] By summarizing the significant standard deviations, a group of significant standard deviations is obtained. Then, the group of significant change bands corresponding to the significant standard deviations is determined in the group of spectral bands.

[0106] It is clear that the standard deviation threshold is a constant set by humans. However, when the standard deviation of the same band is greater than the standard deviation threshold, the corresponding spectral band can be artificially defined as a band with obvious changes, i.e., a band with significant changes.

[0107] Specifically, the calculation of road aging values ​​based on significantly changed reflectance groups includes:

[0108] Extract significantly different reflectance values ​​sequentially from the group of significantly different reflectance values, and determine the significantly different wavebands corresponding to the significantly different reflectance values;

[0109] Plot the reflectance wavelength curve for the significantly changing wavelength band, wherein the reflectance wavelength curve is a curve of reflectance changing with wavelength, and the horizontal axis of the reflectance wavelength curve is wavelength, and the vertical axis is reflectance;

[0110] Determine the first derivative curve of the reflectivity wavelength curve, wherein the horizontal axis of the first derivative curve is wavelength and the vertical axis is the first derivative of reflectivity with respect to wavelength, and determine the changing trend of the first derivative curve, wherein the changing trend includes: an increasing trend and a decreasing trend;

[0111] If the trend of the first derivative curve is an increasing trend, then the significant change in reflectance is recorded as the promoting reflectance.

[0112] If the trend of the first derivative curve is downward, then the significant change in reflectance is recorded as the suppressed reflectance.

[0113] The promoting and inhibiting reflectance values ​​are summarized separately to obtain a promoting reflectance group and an inhibiting reflectance group. Based on the promoting and inhibiting reflectance groups, the road aging value is calculated using the following formula:

[0114] ;

[0115] in, Indicates the road aging value. This indicates the number of reflectance-enhancing elements in the reflectance-enhancing group. Indicates the first in the group that promotes reflectivity One that promotes reflectivity, This indicates the number of suppressed reflectance values ​​in the suppressed reflectance group. Indicates the first in the group of suppressed reflectivity One suppressive reflectivity, This represents the sum of all promoted reflectances in the promoted reflectance group and all suppressed reflectances in the suppressed reflectance group.

[0116] Understandably, the "significantly changing band" refers to the spectral band corresponding to the significant change in reflectance, the "reflectance wavelength curve" is the relationship curve between reflectance and wavelength for each wavelength in the significantly changing band, with the horizontal axis of the curve representing wavelength and the vertical axis representing reflectance corresponding to wavelength, the "first derivative curve" refers to the relationship curve between the first derivative of reflectance and the corresponding wavelength, the "increasing trend" refers to the increase of the first derivative of reflectance as the wavelength increases, and the "decreasing trend" refers to the decrease of the first derivative of reflectance as the wavelength increases.

[0117] It should be explained that since the changing trends of different parts of different first derivative curves may be different, the above-mentioned changing trend is the overall changing trend, which is determined by humans.

[0118] S3. Based on the preset maintenance cycle, perform environmental prediction on the road to be maintained to obtain a set of environmental change coefficients, wherein the set of environmental change coefficients includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient.

[0119] It is clear that the maintenance cycle refers to a manually set time period. The purpose of subsequently applying sealant to the road to be maintained is to prevent damage to the road within the maintenance cycle. Since temperature, traffic flow, and rainfall all affect the degree of road aging, it is necessary to obtain a set of environmental change coefficients. The temperature change coefficient measures the degree of temperature's impact on road aging; the higher the degree of temperature's impact on road aging, the larger the temperature change coefficient. The traffic flow change coefficient measures the degree of traffic flow's impact on road aging; the higher the degree of traffic flow's impact on road aging, the larger the traffic flow change coefficient. The rainfall change coefficient measures the degree of rainfall's impact on road aging; the higher the degree of rainfall's impact on road aging, the larger the rainfall change coefficient.

[0120] Specifically, based on a preset maintenance cycle, environmental prediction is performed on the road to be maintained to obtain a set of environmental change coefficients, including:

[0121] The current period is identified, and the current environmental parameter set for the current period is obtained, wherein the current environmental parameter set includes: current period temperature, current period traffic flow, and current period rainfall;

[0122] Environmental parameters are predicted for the maintenance cycle to obtain a set of maintenance environmental parameters, which includes: temperature during the maintenance cycle, traffic flow during the maintenance cycle, and rainfall during the maintenance cycle.

[0123] Based on the current environmental parameter set and the maintenance environmental parameter set, calculate the temperature change coefficient, traffic flow change coefficient and rainfall change coefficient, where the temperature change coefficient, traffic flow change coefficient and rainfall coefficient are the ratios of the maintenance cycle temperature to the current cycle temperature, the maintenance cycle traffic flow to the current cycle traffic flow, and the maintenance cycle rainfall to the current cycle rainfall, respectively.

[0124] By summing up the temperature change coefficient, traffic flow change coefficient, and rainfall change coefficient, a set of environmental change coefficients is obtained.

[0125] Understandably, the current period refers to the current period in which the road to be maintained is located. This current period is set manually and consists of multiple dates. The current period temperature, current period traffic flow, and current period rainfall refer to the average temperature, average traffic flow, and average rainfall over all dates in the current period, respectively. The maintenance period temperature, maintenance period traffic flow, and maintenance period rainfall refer to the average temperature, average traffic flow, and average rainfall over all dates in the maintenance period, respectively. The temperature and rainfall within the maintenance period can be obtained from weather forecasts, and the traffic flow within the maintenance period can be manually predicted using traffic flow data from the same period of the previous year.

[0126] S4. Based on the road aging value and environmental change coefficient group, predict the road damage of the road to be maintained, obtain the road damage rate, and determine whether the road damage rate is greater than the preset standard damage rate.

[0127] Understandably, the road damage rate refers to the probability that the road surface will be damaged during the maintenance cycle, and the standard damage rate refers to a constant set by humans.

[0128] In detail, the method of predicting road damage to the road to be maintained based on road aging values ​​and environmental change coefficients to obtain the road damage rate includes:

[0129] The road surface parameters of the road to be maintained are detected to obtain a road surface parameter set, which includes: road surface thickness, road surface porosity and road surface skid resistance value.

[0130] Set the daily pavement wear thickness of the road to be maintained;

[0131] Based on the daily pavement loss thickness, pavement parameter set, environmental change coefficient set, and road aging value, the road damage rate is calculated using the following formula:

[0132] ;

[0133] in, Indicates road damage rate, Represents the natural constant. This indicates the preset thickness coefficient. Indicates road surface thickness. Indicates the thickness of road surface wear per day. This indicates the number of days in the maintenance cycle. Indicates the road surface skid resistance value. Indicates the pavement gap ratio of the road surface. This indicates the preset aging coefficient. Represents the first in the group of environmental change coefficients Environmental change coefficient.

[0134] Understandably, the pavement thickness refers to the thickness of the road to be maintained. The pavement porosity refers to the porosity of the road surface to be maintained. Porosity reflects the density of the road surface; higher porosity means fewer micropores on the surface. These micropores easily absorb moisture and pollutants, accelerating road aging and damage. High-elasticity potting compound can effectively fill these micropores, reducing porosity and improving the road's waterproofing and anti-aging properties. This pavement porosity can be measured using a porosity meter. The pavement skid resistance value refers to a numerical value measuring the skid resistance of the road to be maintained. The stronger the skid resistance, the higher the pavement skid resistance value. This can be measured using a pendulum friction coefficient meter. The daily pavement loss thickness refers to the daily loss of the pavement thickness of the road to be maintained. This daily pavement loss thickness can be obtained by long-term monitoring of the road thickness and data fitting. The thickness coefficient refers to the weight of thickness variation in calculating the road damage rate, and the aging coefficient refers to the weight of road aging value in calculating the road damage rate. Both the thickness coefficient and the aging coefficient are set manually, and optionally, the thickness coefficient and the aging coefficient are 2.3 and 0.05, respectively. Represents the first in the group of environmental change coefficients The specific environmental change coefficients are as follows: Indicates the coefficient of temperature change, Indicates the coefficient of traffic flow variation. This represents the coefficient of variation in rainfall.

[0135] It needs to be explained that the above formula for calculating the road damage rate is as follows: the road thickness decreases over time, leading to a decline in the road's load-bearing capacity. The exponential function reflects the nonlinear accelerating effect of thickness loss on road damage. The increase in porosity exacerbates water penetration and material degradation, so pavement porosity has a promoting relationship in the calculation of the road damage rate. The increase in skid resistance value enhances the shear resistance of the road to be maintained, so pavement skid resistance value has an inhibiting relationship in the calculation of the road damage rate. The road aging value characterizes the material's ability to degrade performance. Multiplying it by the environmental change coefficient in the environmental change coefficient group reflects the synergistic amplification effect of environmental abrupt changes and traffic pressure on damage. The exponential function highlights the irreversibility of time accumulation.

[0136] Importantly, the process of detecting road surface parameters on the road to be maintained to obtain a road surface parameter set includes:

[0137] Set up sampling point groups in the road to be maintained, and extract sampling points sequentially from the sampling point groups;

[0138] The sampling points are subjected to ultrasonic testing to obtain the thickness of the sampling points. The anti-slip value of the sampling points is measured using a pre-acquired pendulum friction coefficient measuring instrument to obtain the anti-slip value of the sampling points. The porosity of the sampling points is measured using a pre-acquired porosity measuring instrument to obtain the porosity of the sampling points.

[0139] The thickness, anti-slip value, and porosity of the sampling points are summarized to obtain the sampling point thickness group, sampling point anti-slip value group, and sampling point porosity group, respectively.

[0140] The mean values ​​of the sampling point thickness group, the sampling point skid resistance value group, and the sampling point porosity group were calculated to obtain the pavement thickness, pavement skid resistance value, and pavement porosity.

[0141] S5. If it is confirmed that the road damage rate is greater than the standard damage rate, the road to be maintained is recorded as a candidate road for maintenance, and the pre-obtained high-elasticity potting compound is modified to obtain an optimized potting compound.

[0142] Understandably, the high-elasticity potting compound is a commercially available polyurethane-based high-elasticity potting compound. Its main components are: hydroxyl-terminated polyurethane prepolymer (elastic matrix), plasticizer (phthalate), filler (calcium carbonate), and curing agent (isocyanate). When this polyurethane-based high-elasticity potting compound is directly used for road surface covering, it has problems such as insufficient wear resistance (easy to wear under dynamic load), weak resistance to ultraviolet aging, low adhesion to the road surface, and inability to form a uniform thin layer. Therefore, it needs to be modified. The modification method is to use an optimized material group for modification.

[0143] Specifically, the modification of the pre-obtained high-elasticity potting compound to obtain an optimized potting compound includes:

[0144] The optimized material group was identified, which includes: nano-silica, silicon carbide, cerium oxide, titanium dioxide, silane coupling agent KH-560, graphene, benzotriazole UV-326, HDI trimer and polyether modified silicone oil.

[0145] The optimized material group is added to the pre-obtained high-elasticity potting compound to obtain the optimized potting compound, wherein the high-elasticity potting compound is a polyurethane-based high-elasticity potting compound.

[0146] Furthermore, the detailed steps for adding the optimized material group to the pre-obtained high-elasticity potting compound are as follows: First, prepare the modified composite filler: Mix nano-SiO2 (nano-silica), SiC (silicon carbide), CeO2 (cerium oxide) and TiO2 (titanium dioxide) in a preset ratio to obtain a first mixture. Add silane coupling agent KH-560 to the first mixture, and the mass of the added silane coupling agent KH-560 is 1% of the first mixture to obtain a second mixture. Disperse the second mixture ultrasonically at 60 degrees Celsius for 30 minutes to obtain the modified composite filler. Use interfacial polymerization to encapsulate HDI trimer in a polyurethane shell material, and control the shell-to-core ratio at 1:3 to obtain microcapsules. The particle size of the microcapsules is controlled at 50μm-100μm. Secondly, the modified main agent was prepared: the polyurethane prepolymer was heated to 50 degrees Celsius, and a plasticizer and polyether-modified silicone oil were added to the heated hydroxyl-terminated polyurethane prepolymer to obtain the first main agent. The first main agent was stirred at 500 rpm for 10 minutes to obtain the second main agent. Then, modified composite filler and graphene were added to the second main agent, and the mixture was dispersed at 1500 rpm for 1 hour under nitrogen protection to obtain the third main agent. Benzotriazole UV-326 was added to the third main agent, and the mixture was stirred at 200 rpm to obtain the modified main agent. Further, the modified curing agent was prepared: 0.5% nano-cerium oxide was incorporated into the curing agent to obtain the modified curing agent. Finally, the modified main agent and the modified curing agent were mixed at a mass ratio of 10:1 to obtain the optimized potting compound.

[0147] It should be explained that nano-SiO2 particles, acting as a hard filler, are uniformly dispersed in the polyurethane matrix to increase the surface hardness of the potting compound, thereby improving its wear resistance. SiC particles, through their micro-protrusion structure, disperse the surface stress of the potting compound, thus reducing surface plastic deformation. Since preventative coverings need to withstand high-frequency vehicle traffic, the "soft-hard synergy" structure formed by SiC and SiO2 can reduce road wear. Because open roads are exposed to ultraviolet radiation for extended periods, the redox ions provided by CeO2 can efficiently capture free radicals induced by ultraviolet radiation, thus delaying photo-oxidative aging of the road. Since CeO2 alone cannot completely block ultraviolet radiation, benzotriazole UV-326 is added; its synergistic effect with CeO2 further slows down the rate of ultraviolet aging of the road. Nano-titanium dioxide can generate reactive oxygen species (ROS) under ultraviolet excitation, thereby decomposing oil and organic matter adsorbed on the road surface, thus delaying road aging. The addition of silane coupling agent KH-560 enhances the adhesion strength between the potting compound and the road surface, while the addition of graphene improves the elongation of the potting compound. Because traditional potting compounds have high viscosity and are difficult to form a uniform thin layer, BYK-333 is added to reduce their viscosity, making the optimized potting compound easier to cover the road surface.

[0148] S6. Based on the road damage rate and the standard damage rate, calculate the coverage thickness and coverage benefit value of the candidate maintenance roads, and summarize the candidate maintenance roads, coverage thickness and coverage benefit value to obtain the candidate maintenance road set, coverage thickness set and coverage benefit value set.

[0149] It should be explained that the coverage thickness refers to the thickness of the cover when the candidate road to be maintained needs to be covered with high elasticity potting compound, and the coverage benefit value refers to the benefit of covering the candidate road to be maintained with high elasticity potting compound. The larger the coverage benefit value, the lower the input-output ratio of covering the candidate road to be maintained, that is, the smaller the benefit. The coverage benefit value can be used to determine the order in which the candidate roads to be maintained are covered.

[0150] Specifically, the calculation of the coverage thickness and coverage benefit value of candidate roads for maintenance based on road damage rate and standard damage rate includes:

[0151] Calculate the coverage thickness using the following formula:

[0152] ;

[0153] in, Indicates the coverage thickness. Represents the natural logarithm. Indicates the standard damage rate. Indicates the initial design thickness;

[0154] The road area of ​​the road to be maintained is measured, and the road grade weight of the road to be maintained is determined, wherein the road grade weight includes: arterial road grade weight, secondary arterial road grade weight and local road grade weight;

[0155] Based on the road area and road grade weights, the coverage benefit value is calculated using the following formula:

[0156]

[0157] in, Indicates the coverage benefit value. This indicates an optimization of the potting compound's density. Indicates the road area. This indicates the weight of the road grade.

[0158] Understandably, the initial design thickness refers to the thickness set at the design candidate road for maintenance, the road area refers to the area of ​​the road to be maintained, and the road grade weight refers to a constant set by the user. Since different roads have different grades, the benefits they bring are also different. For example, when the road to be maintained is a main road, since the main road needs to bear a larger traffic flow, the benefit of covering the main road with sealant is higher than that of the trunk road and the branch road. Optionally, the weights of the main road grade, the secondary road grade, and the branch road grade are 1.0, 0.7, and 0.4, respectively.

[0159] The following explanation is needed regarding the formula for calculating the coverage benefit value: The numerator in the formula includes the coverage area and coverage thickness. A larger coverage area and thickness indicate the need for more potting compound material, leading to higher costs. The denominator includes the road grade weight and the degree of damage exceeding the standard, where the degree of damage exceeding the standard is expressed as: The higher the road grade weight, the more important the candidate road is, meaning a higher benefit from covering it with sealant. Conversely, a higher damage rate exceeding the standard indicates a greater urgency for maintenance. Therefore, a higher coverage benefit value indicates a lower return on investment for maintaining the candidate road.

[0160] S7. Sort the candidate maintenance road set according to the coverage benefit value set to obtain the priority maintenance road set, wherein the priority maintenance road with the smaller sequence number in the priority maintenance road set has a higher maintenance priority.

[0161] Understandably, the priority maintenance road set refers to the candidate maintenance roads after sorting. Since different candidate maintenance roads have different coverage benefit values, they can be sorted according to the coverage benefit value to determine the order of coverage. The sorting rule is: the lower the coverage benefit value of the road to be maintained, the higher the priority of coverage. That is, the smaller the sequence number of the priority maintenance road in the priority maintenance road set, the higher the maintenance priority.

[0162] S8. Based on the coverage thickness set and the optimized potting compound, apply potting compound to the priority maintenance road set to obtain the target road set, and complete road maintenance based on the high elasticity potting compound based on the target road set.

[0163] It should be explained that covering the priority maintenance road set with potting compound means that priority maintenance roads with lower order in the priority maintenance road set are covered with higher priority, and when optimizing the potting compound coverage of priority maintenance roads, the thickness of the coverage should be equal to the coverage thickness corresponding to the priority maintenance road.

[0164] To address the problems described in the background section, this invention first utilizes satellite imagery to acquire road spectral images and then uses these images to assess road aging. This provides a comprehensive and objective understanding of the current aging status of roads requiring maintenance. Compared to traditional on-site manual inspections, satellite imagery is not limited by terrain or traffic conditions and can quickly acquire a large amount of road information. The road aging values ​​obtained through spectral image analysis allow maintenance work to take appropriate measures for roads with varying degrees of aging, improving maintenance efficiency and effectiveness. Next, environmental prediction is performed based on the maintenance cycle to obtain a set of environmental change coefficients. This process helps to understand the environmental changes the road may face in the future. By obtaining these environmental change coefficients, future road damage trends can be predicted more accurately, thereby enhancing the foresight and adaptability of road maintenance. Based on the road aging values ​​and the environmental change coefficient set, road damage is predicted to obtain the road damage rate, and it is determined whether this rate exceeds the standard damage rate. This step achieves a quantitative assessment of the future degree of road damage. By comparing this rate with the standard damage rate… This method can clearly identify which roads require maintenance, avoiding the subjectivity and uncertainty of relying solely on experience. It prioritizes roads that truly require maintenance, improving the overall quality of road maintenance and the efficiency of resource utilization. When it is confirmed that the road damage rate is greater than the standard damage rate, the high-elasticity potting compound is modified to obtain an optimized potting compound. This step modifies the traditional potting compound, giving the optimized compound better adaptability. Next, based on the road damage rate and the standard damage rate, the coverage thickness and coverage benefit value of candidate maintenance roads are calculated. By calculating the coverage thickness, it is ensured that an appropriate amount of potting compound is used during maintenance, while the calculation of the coverage benefit value quantifies the value of maintenance work, allowing maintenance personnel to clearly understand the input-output ratio of each road maintenance segment, thereby achieving optimal resource allocation and maximizing maintenance benefits. Then, the candidate maintenance road set is prioritized to obtain a priority maintenance road set. This prioritization process ensures that maintenance work prioritizes roads with higher coverage benefit values, thereby ensuring that limited maintenance resources are first invested in road sections that will produce the most significant results. Finally, an optimized potting compound is used to cover the priority maintenance road sections. This step innovatively applies potting compound, traditionally used only for filling cracks, to preventative road maintenance, effectively protecting the roads before serious damage occurs and thus extending their service life. Therefore, this invention optimizes maintenance efficiency and improves road lifespan.

[0165] like Figure 2 The diagram shown is a functional block diagram of a road maintenance system based on a highly elastic potting compound provided in an embodiment of the present invention.

[0166] The road maintenance system 100 based on high-elasticity potting compound described in this invention can be installed in an electronic device. Depending on the functions implemented, the road maintenance system 100 may include a road aging assessment module 101, a road damage comparison module 102, a maintenance strategy formulation module 103, and a candidate road maintenance module 104. The module described in this invention can also be referred to as a unit, which refers to a series of computer program segments that can be executed by the processor of an electronic device and can perform a fixed function, and are stored in the memory of the electronic device.

[0167] The road aging assessment module 101 is used to receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and the road to be maintained is a road segment in the area to be maintained. The road to be maintained is extracted sequentially from the set of roads to be maintained, satellite images are taken of the road to be maintained to obtain road spectral images, and road aging assessment is performed on the road to be maintained based on the road spectral images to obtain road aging values.

[0168] The road damage comparison module 102 is used to perform environmental prediction on the road to be maintained based on a preset maintenance cycle to obtain an environmental change coefficient group, wherein the environmental change coefficient group includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient. Based on the road aging value and the environmental change coefficient group, the road damage is predicted on the road to be maintained to obtain the road damage rate, and it is determined whether the road damage rate is greater than the preset standard damage rate.

[0169] The maintenance strategy formulation module 103 is used to, if it is confirmed that the road damage rate is greater than the standard damage rate, record the road to be maintained as a candidate maintenance road, modify the pre-acquired high-elasticity potting compound to obtain an optimized potting compound, calculate the coverage thickness and coverage benefit value of the candidate maintenance roads based on the road damage rate and the standard damage rate, and summarize the candidate maintenance roads, coverage thickness and coverage benefit value respectively to obtain a set of candidate maintenance roads, a set of coverage thickness and a set of coverage benefit values.

[0170] The candidate road maintenance module 104 is used to prioritize the candidate maintenance road set according to the coverage benefit value set to obtain the priority maintenance road set. The priority maintenance road with the smaller sequence number in the priority maintenance road set has a higher maintenance priority. According to the coverage thickness set and the optimized potting compound, the priority maintenance road set is covered with potting compound to obtain the target road set.

[0171] In detail, the modules in the road maintenance system 100 based on high-elasticity potting compound described in this embodiment of the invention employ the same methods as described above during use. Figure 1The road maintenance method based on highly elastic potting compound described herein uses the same technical means and can produce the same technical effect, so it will not be repeated here.

[0172] like Figure 3 The diagram shown is a schematic representation of an electronic device for implementing a road maintenance method based on a highly elastic potting compound, according to an embodiment of the present invention.

[0173] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a road maintenance method program based on a highly elastic potting compound.

[0174] The memory 11 includes at least one type of readable storage medium, such as flash memory, portable hard drive, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as a portable hard drive. In other embodiments, the memory 11 can be an external storage device of the electronic device 1, such as a plug-in portable hard drive, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the electronic device 1. Furthermore, the memory 11 includes both internal storage units and external storage devices of the electronic device 1. The memory 11 can be used not only to store application software and various types of data installed on the electronic device 1, such as code for a road maintenance method program based on high-elasticity potting compound, but also to temporarily store data that has been output or will be output.

[0175] In some embodiments, the processor 10 may be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor 10 is the control unit of the electronic device, connecting various components of the entire electronic device via various interfaces and lines. It executes programs or modules stored in the memory 11 (e.g., road maintenance method programs based on highly elastic potting compound) and calls data stored in the memory 11 to perform various functions of the electronic device 1 and process data.

[0176] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0177] Figure 3 Only electronic devices with components are shown; it will be understood by those skilled in the art that... Figure 3 The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0178] For example, although not shown, the electronic device 1 may also include a power supply (such as a battery) to power the various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management system, thereby enabling functions such as charging management, discharging management, and power consumption management through the power management system. The power supply may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be described in detail here.

[0179] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a Wi-Fi interface, a Bluetooth interface, etc.), which is typically used to establish communication connections between the electronic device 1 and other electronic devices.

[0180] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), and optionally, a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen, etc. The display may also be appropriately referred to as a screen or display unit, used to display information processed in the electronic device 1 and to display a visual user interface.

[0181] The road maintenance method program based on highly elastic potting compound stored in the memory 11 of the electronic device 1 is a combination of multiple instructions. When run in the processor 10, it can achieve the following:

[0182] Receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and each road to be maintained is a road segment in the area to be maintained.

[0183] The roads to be maintained are extracted sequentially from the set of roads to be maintained, satellite images are taken of the roads to be maintained to obtain road spectral images, and road aging is assessed based on the road spectral images to obtain road aging values.

[0184] Based on a preset maintenance cycle, environmental prediction is performed on the road to be maintained to obtain a set of environmental change coefficients, which includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient.

[0185] Based on the road aging value and environmental change coefficient group, road damage is predicted for the road to be maintained, the road damage rate is obtained, and it is determined whether the road damage rate is greater than the preset standard damage rate.

[0186] If it is confirmed that the road damage rate is greater than the standard damage rate, the road to be maintained is recorded as a candidate road for maintenance, and the pre-acquired high-elasticity potting compound is modified to obtain an optimized potting compound.

[0187] Based on the road damage rate and the standard damage rate, the coverage thickness and coverage benefit value of the candidate maintenance roads are calculated. The candidate maintenance roads, coverage thickness and coverage benefit values ​​are summarized to obtain the candidate maintenance road set, the coverage thickness set and the coverage benefit value set.

[0188] The candidate maintenance road set is prioritized according to the coverage benefit value set to obtain the priority maintenance road set. Among them, the priority maintenance road with the smaller sequence number in the priority maintenance road set has a higher maintenance priority.

[0189] Based on the coverage thickness set and the optimized potting compound, the priority maintenance road set is covered with potting compound to obtain the target road set, and road maintenance based on the high elasticity potting compound is completed based on the target road set.

[0190] Specifically, the processor 10's implementation method for the above instructions can be found in [reference needed]. Figures 1 to 3 The descriptions of the relevant steps in the corresponding embodiments are not repeated here.

[0191] Furthermore, if the modules / units integrated in the electronic device 1 are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or system capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0192] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor of an electronic device, can perform the following:

[0193] Receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and each road to be maintained is a road segment in the area to be maintained.

[0194] The roads to be maintained are extracted sequentially from the set of roads to be maintained, satellite images are taken of the roads to be maintained to obtain road spectral images, and road aging is assessed based on the road spectral images to obtain road aging values.

[0195] Based on a preset maintenance cycle, environmental prediction is performed on the road to be maintained to obtain a set of environmental change coefficients, which includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient.

[0196] Based on the road aging value and environmental change coefficient group, road damage is predicted for the road to be maintained, the road damage rate is obtained, and it is determined whether the road damage rate is greater than the preset standard damage rate.

[0197] If it is confirmed that the road damage rate is greater than the standard damage rate, the road to be maintained is recorded as a candidate road for maintenance, and the pre-acquired high-elasticity potting compound is modified to obtain an optimized potting compound.

[0198] Based on the road damage rate and the standard damage rate, the coverage thickness and coverage benefit value of the candidate maintenance roads are calculated. The candidate maintenance roads, coverage thickness and coverage benefit values ​​are summarized to obtain the candidate maintenance road set, the coverage thickness set and the coverage benefit value set.

[0199] The candidate maintenance road set is prioritized according to the coverage benefit value set to obtain the priority maintenance road set. Among them, the priority maintenance road with the smaller sequence number in the priority maintenance road set has a higher maintenance priority.

[0200] Based on the coverage thickness set and the optimized potting compound, the priority maintenance road set is covered with potting compound to obtain the target road set, and road maintenance based on the high elasticity potting compound is completed based on the target road set.

[0201] In the embodiments provided by this invention, it should be understood that the disclosed devices, systems, and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative, and actual implementations may have other classification methods.

[0202] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0203] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional modules.

[0204] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0205] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A road maintenance method based on highly elastic potting compound, characterized in that, The method includes: Receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and each road to be maintained is a road segment in the area to be maintained. The roads to be maintained are extracted sequentially from the set of roads to be maintained, satellite images are taken of the roads to be maintained to obtain road spectral images, and road aging is assessed based on the road spectral images to obtain road aging values. The process of assessing road aging based on road spectral images to obtain road aging values ​​includes: Determine the spectral band group in the road spectral image, wherein the road spectral image includes multiple spectral image layers, and each spectral image layer corresponds to a spectral band; Spectral bands are extracted sequentially from the spectral band group, and the road reflectance of the road to be maintained in the spectral image layer corresponding to the spectral band is identified. The road reflectance is then summarized to obtain the road reflectance group. Obtain a set of historical spectral images of the road to be maintained, and based on the set of historical spectral images, identify groups of bands with significant changes in the spectral bands, wherein the groups of bands with significant changes include one or more bands with significant changes. In the road reflectivity group, identify the significantly changed reflectivity group corresponding to the significantly changed band group; Calculate road aging values ​​based on significantly changed reflectance groups; The calculation of road aging values ​​based on significantly changed reflectance groups includes: Extract significantly different reflectance values ​​sequentially from the group of significantly different reflectance values, and determine the significantly different wavebands corresponding to the significantly different reflectance values; Plot the reflectance wavelength curve for the significantly changing wavelength band, wherein the reflectance wavelength curve is a curve of reflectance changing with wavelength, and the horizontal axis of the reflectance wavelength curve is wavelength, and the vertical axis is reflectance; Determine the first derivative curve of the reflectivity wavelength curve, wherein the horizontal axis of the first derivative curve is wavelength and the vertical axis is the first derivative of reflectivity with respect to wavelength, and determine the changing trend of the first derivative curve, wherein the changing trend includes: an increasing trend and a decreasing trend; If the trend of the first derivative curve is an increasing trend, then the significant change in reflectance is recorded as the promoting reflectance. If the trend of the first derivative curve is downward, then the significant change in reflectance is recorded as the suppressed reflectance. The promoting and inhibiting reflectance values ​​are summarized separately to obtain a promoting reflectance group and an inhibiting reflectance group. Based on the promoting and inhibiting reflectance groups, the road aging value is calculated using the following formula: ； in, Indicates the road aging value. This indicates the number of reflectance-enhancing elements in the reflectance-enhancing group. Indicates the first in the group that promotes reflectivity One that promotes reflectivity, This indicates the number of suppressed reflectance values ​​in the suppressed reflectance group. Indicates the first in the group of suppressed reflectivity One suppressive reflectivity, This represents the sum of all promoting reflectivity in the promoting reflectivity group and all inhibiting reflectivity in the inhibiting reflectivity group; Based on a preset maintenance cycle, environmental prediction is performed on the road to be maintained to obtain a set of environmental change coefficients, which includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient. Based on the road aging value and environmental change coefficient group, road damage is predicted for the road to be maintained, the road damage rate is obtained, and it is determined whether the road damage rate is greater than the preset standard damage rate. If it is confirmed that the road damage rate is greater than the standard damage rate, the road to be maintained is recorded as a candidate road for maintenance, and the pre-acquired high-elasticity potting compound is modified to obtain an optimized potting compound. Based on the road damage rate and the standard damage rate, the coverage thickness and coverage benefit value of the candidate maintenance roads are calculated. The candidate maintenance roads, coverage thickness and coverage benefit values ​​are summarized to obtain the candidate maintenance road set, the coverage thickness set and the coverage benefit value set. The candidate maintenance road set is prioritized according to the coverage benefit value set to obtain the priority maintenance road set. Among them, the priority maintenance road with the smaller sequence number in the priority maintenance road set has a higher maintenance priority. Based on the coverage thickness set and the optimized potting compound, the priority maintenance road set is covered with potting compound to obtain the target road set, and road maintenance based on the high elasticity potting compound is completed based on the target road set.

2. The road maintenance method based on highly elastic potting compound as described in claim 1, characterized in that, The step of identifying significantly changing band groups within the spectral band group based on historical spectral image sets includes: Historical spectral images are extracted sequentially from the historical spectral image set, wherein the historical spectral images and the road spectral images have the same spectral band group; Based on the spectral band group, the historical reflectance group of the historical spectral image is identified, and the historical reflectance group is summarized to obtain the historical reflectance group set, wherein the historical reflectance in the historical reflectance group corresponds one-to-one with the spectral band in the spectral band group. Spectral bands are extracted sequentially from the spectral band group, and the corresponding set of reflectance of the same band is identified in the historical reflectance set. The standard deviation of all reflectance in the same band is calculated to obtain the standard deviation of the same band. The standard deviations of the same band are summarized to obtain the standard deviation group of the same band, wherein one standard deviation of the same band corresponds to one spectral band. Based on the standard deviation group of the same band, identify the band group with significant changes in the spectral band group.

3. The road maintenance method based on highly elastic potting compound as described in claim 2, characterized in that, The method of identifying significantly varying band groups within a spectral band group based on the standard deviation group of the same band includes: Set a standard deviation threshold and determine whether there is a standard deviation in the same band that is greater than the standard deviation threshold. If there is a standard deviation in the same band that is greater than the standard deviation threshold, then the standard deviation in the same band that is greater than the standard deviation threshold is recorded as a significant standard deviation. If there is no standard deviation in the same band that is greater than the standard deviation threshold, then the maximum standard deviation in the same band standard deviation group is identified and the maximum standard deviation is recorded as the significant standard deviation. By summarizing the significant standard deviations, a group of significant standard deviations is obtained. Then, the group of significant change bands corresponding to the significant standard deviations is determined in the group of spectral bands.

4. The road maintenance method based on highly elastic potting compound as described in claim 3, characterized in that, Based on a preset maintenance cycle, environmental prediction is performed on the road to be maintained to obtain a set of environmental change coefficients, including: The current period is identified, and the current environmental parameter set for the current period is obtained, wherein the current environmental parameter set includes: current period temperature, current period traffic flow, and current period rainfall; Environmental parameters are predicted for the maintenance cycle to obtain a set of maintenance environmental parameters, which includes: temperature during the maintenance cycle, traffic flow during the maintenance cycle, and rainfall during the maintenance cycle. Based on the current environmental parameter set and the maintenance environmental parameter set, calculate the temperature change coefficient, traffic flow change coefficient and rainfall change coefficient, where the temperature change coefficient, traffic flow change coefficient and rainfall coefficient are the ratios of the maintenance cycle temperature to the current cycle temperature, the maintenance cycle traffic flow to the current cycle traffic flow, and the maintenance cycle rainfall to the current cycle rainfall, respectively. By summing up the temperature change coefficient, traffic flow change coefficient, and rainfall change coefficient, a set of environmental change coefficients is obtained.

5. The road maintenance method based on highly elastic potting compound as described in claim 4, characterized in that, The method involves predicting road damage to the road to be maintained based on road aging values ​​and environmental change coefficients, resulting in a road damage rate, including: The road surface parameters of the road to be maintained are detected to obtain a road surface parameter set, which includes: road surface thickness, road surface porosity and road surface skid resistance value. Set the daily pavement wear thickness of the road to be maintained; Based on the daily pavement loss thickness, pavement parameter set, environmental change coefficient set, and road aging value, the road damage rate is calculated using the following formula: ； in, Indicates road damage rate, Represents the natural constant. This indicates the preset thickness coefficient. Indicates road surface thickness. Indicates the thickness of road surface wear per day. This indicates the number of days in the maintenance cycle. Indicates the road surface skid resistance value. Indicates the pavement gap ratio of the road surface. This indicates the preset aging coefficient. Represents the first in the group of environmental change coefficients Environmental change coefficient.

6. The road maintenance method based on highly elastic potting compound as described in claim 5, characterized in that, The modification of the pre-obtained high-elasticity potting compound to obtain an optimized potting compound includes: The optimized material group was identified, which includes: nano-silica, silicon carbide, cerium oxide, titanium dioxide, silane coupling agent KH-560, graphene, benzotriazole UV-326, HDI trimer and polyether modified silicone oil. The optimized material group is added to the pre-obtained high-elasticity potting compound to obtain the optimized potting compound, wherein the high-elasticity potting compound is a polyurethane-based high-elasticity potting compound.

7. The road maintenance method based on highly elastic potting compound as described in claim 6, characterized in that, The calculation of the coverage thickness and coverage benefit value of candidate roads for maintenance based on road damage rate and standard damage rate includes: Calculate the coverage thickness using the following formula: ； in, Indicates the coverage thickness. Represents the natural logarithm. Indicates the standard damage rate. Indicates the initial design thickness; The road area of ​​the road to be maintained is measured, and the road grade weight of the road to be maintained is determined, wherein the road grade weight includes: arterial road grade weight, secondary arterial road grade weight and local road grade weight; Based on the road area and road grade weights, the coverage benefit value is calculated using the following formula: ； in, Indicates the coverage benefit value. This indicates an optimization of the potting compound's density. Indicates the road area. This indicates the weight of the road grade.

8. A system for road maintenance using the method of any one of claims 1 to 7 based on a highly elastic potting compound, characterized in that, The system includes: The road aging assessment module is used to receive road maintenance instructions, determine the area to be maintained based on the road maintenance instructions, and count the set of roads to be maintained in the area to be maintained. The set of roads to be maintained includes multiple roads to be maintained, and each road to be maintained is a road segment in the area to be maintained. The road to be maintained is extracted sequentially from the set of roads to be maintained, and satellite images are taken of the roads to be maintained to obtain road spectral images. Based on the road spectral images, the road aging assessment is performed on the roads to be maintained to obtain road aging values. The road damage comparison module is used to predict the environment of the road to be maintained based on a preset maintenance cycle, and obtain a set of environmental change coefficients, wherein the set of environmental change coefficients includes: temperature change coefficient, traffic flow change coefficient and rainfall change coefficient. Based on the road aging value and the set of environmental change coefficients, the module predicts the road damage of the road to be maintained, obtains the road damage rate, and determines whether the road damage rate is greater than the preset standard damage rate. The maintenance strategy formulation module is used to record the road to be maintained as a candidate maintenance road if it is confirmed that the road damage rate is greater than the standard damage rate, modify the pre-acquired high elasticity potting compound to obtain an optimized potting compound, calculate the coverage thickness and coverage benefit value of the candidate maintenance roads based on the road damage rate and the standard damage rate, and summarize the candidate maintenance roads, coverage thickness and coverage benefit value respectively to obtain a set of candidate maintenance roads, a set of coverage thickness and a set of coverage benefit values. The candidate road maintenance module is used to prioritize the candidate maintenance road set according to the coverage benefit value set to obtain the priority maintenance road set. The priority maintenance road set has a higher maintenance priority because the smaller the sequence number of the priority maintenance road set is. The priority maintenance road set is covered with potting compound according to the coverage thickness set and the optimized potting compound to obtain the target road set.

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