Asphalt paving temperature monitoring method and system

Abstract

The embodiment of the invention relates to the technical field of asphalt paving, and particularly discloses an asphalt paving temperature monitoring method and system. According to the embodiment of the invention, temperature monitoring planning is carried out before transportation, before paving and during paving; performing real-time temperature monitoring on the asphalt mixture in the transportation process to obtain transportation temperature data; performing temperature monitoring on the asphalt mixture before paving to obtain temperature data before paving; performing real-time temperature monitoring on the paved asphalt mixture to obtain paving temperature data; and carrying out analysis judgment and feedback processing on temperature abnormity. According to the asphalt paving temperature monitoring system, asphalt paving temperature monitoring planning can be carried out, different temperature monitoring and recording are respectively carried out in transportation, before paving and during paving, analysis, judgment and feedback processing of temperature abnormity are carried out, manual operation is not needed, the intelligent and automatic level of asphalt paving temperature monitoring is effectively improved, and the working efficiency is improved. In addition, uncertainty and complexity of the temperature monitoring process can be avoided, and improvement of the overall quality of asphalt paving can be promoted.

Description

Technical Field

[0001] The present invention belongs to the technical field of asphalt paving, and in particular relates to an asphalt paving temperature monitoring method and system. Background Art

[0002] Asphalt paving is the process of evenly laying asphalt mixture on the surface of roads, bridges or other buildings. It is an important part of road construction and plays a key role in improving road quality, extending its service life and ensuring driving safety.

[0003] Temperature monitoring during asphalt paving is particularly important and has a great impact on construction quality.

[0004] In the prior art, the temperature monitoring process of asphalt paving relies heavily on manual operation, which results in low intelligence and automation levels of asphalt paving temperature monitoring, and easily introduces human measurement errors, increasing the uncertainty and complexity of the temperature monitoring process, which in turn has an adverse impact on the overall quality control of asphalt paving. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a method and system for monitoring asphalt paving temperature, aiming to solve the problems raised in the background technology.

[0006] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: A method for monitoring asphalt paving temperature, the method comprising the following steps: Obtain construction planning information for asphalt paving, conduct temperature monitoring planning for transportation, before paving, and during paving, and generate transportation monitoring planning information, pre-paving monitoring planning information, and during paving monitoring planning information; According to the transportation monitoring planning information, the temperature of the asphalt mixture during transportation is monitored and recorded in real time to obtain transportation temperature data; According to the pre-paving monitoring planning information, the temperature of the asphalt mixture before paving is monitored and recorded to obtain the pre-paving temperature data; According to the monitoring planning information during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time to obtain the temperature data during paving; The transportation temperature data, the pre-paving temperature data and the paving temperature data are analyzed to perform analysis, judgment and feedback processing of temperature anomalies.

[0007] An asphalt paving temperature monitoring system, the system comprises a temperature monitoring planning unit, a transportation temperature monitoring unit, a pre-paving temperature monitoring unit, a paving temperature monitoring unit and a temperature abnormality processing unit, wherein: The temperature monitoring planning unit is used to obtain the construction planning information of asphalt paving, carry out temperature monitoring planning for transportation, before paving and during paving, and generate transportation monitoring planning information, pre-paving monitoring planning information and during paving monitoring planning information; A transport temperature monitoring unit, used to monitor and record the temperature of the asphalt mixture in real time during transportation according to the transport monitoring planning information, and obtain transport temperature data; A pre-paving temperature monitoring unit is used to monitor and record the temperature of the asphalt mixture before paving according to the pre-paving monitoring planning information to obtain pre-paving temperature data; A paving temperature monitoring unit is used to monitor and record the temperature of the asphalt mixture being paved in real time according to the paving monitoring planning information to obtain paving temperature data; The temperature anomaly processing unit is used to analyze the transportation temperature data, the pre-paving temperature data and the paving temperature data, and perform analysis, judgment and feedback processing of temperature anomalies.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The embodiment of the present invention performs temperature monitoring planning for transportation, before paving and during paving; performs real-time temperature monitoring of the asphalt mixture during transportation to obtain transportation temperature data; performs temperature monitoring of the asphalt mixture before paving to obtain pre-paving temperature data; performs real-time temperature monitoring of the asphalt mixture during paving to obtain during paving temperature data; and performs analysis, judgment and feedback processing of temperature anomalies. It is possible to perform temperature monitoring planning for asphalt paving, monitor and record different temperatures before and during transportation, paving, and paving, respectively, and perform analysis, judgment and feedback processing of temperature anomalies without manual operation, effectively improving the intelligence and automation level of asphalt paving temperature monitoring, and avoiding the uncertainty and complexity of the temperature monitoring process, which can promote the overall quality improvement of asphalt paving. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0010] Figure 1 A flow chart of a method provided by an embodiment of the present invention is shown.

[0011] Figure 2 A flow chart of temperature monitoring planning for transportation, before paving and during paving in the method provided by an embodiment of the present invention is shown.

[0012] Figure 3 A flow chart of obtaining transport temperature data in the method provided in an embodiment of the present invention is shown.

[0013] Figure 4 A flow chart of obtaining pre-paving temperature data in the method provided in an embodiment of the present invention is shown.

[0014] Figure 5 A flow chart of obtaining temperature data during paving in the method provided in an embodiment of the present invention is shown.

[0015] Figure 6 The flowchart of the analysis, judgment and feedback processing of temperature anomaly in the method provided by the embodiment of the present invention is shown.

[0016] Figure 7 The application architecture diagram of the system provided by the embodiment of the present invention is shown.

[0017] Figure 8 The structure block diagram of the temperature monitoring planning unit in the system provided by the embodiment of the present invention is shown.

[0018] Fig. 9 The structure block diagram of the transport temperature monitoring unit in the system provided by the embodiment of the present invention is shown.

[0019] Fig.10 The structure block diagram of the temperature anomaly processing unit in the system provided by the embodiment of the present invention is shown. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It is understandable that temperature monitoring during asphalt paving is particularly important and has a great impact on construction quality. In the prior art, the temperature monitoring process of asphalt paving relies heavily on manual operation, resulting in low intelligence and automation levels of asphalt paving temperature monitoring, and easy introduction of human measurement errors, which increases the uncertainty and complexity of the temperature monitoring process, and thus has an adverse impact on the overall quality control of asphalt paving.

[0022] To solve the above problems, the embodiment of the present invention obtains the construction planning information of asphalt paving, performs temperature monitoring planning for transportation, before paving and during paving, generates transportation monitoring planning information, monitoring planning information before paving and monitoring planning information during paving; according to the transportation monitoring planning information, the temperature of the asphalt mixture in the transportation process is monitored and recorded in real time to obtain transportation temperature data; according to the monitoring planning information before paving, the temperature of the asphalt mixture before paving is monitored and recorded to obtain the temperature data before paving; according to the monitoring planning information during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time to obtain the temperature data during paving; the transportation temperature data, the temperature data before paving and the temperature data during paving are analyzed, and the analysis, judgment and feedback processing of temperature anomalies are performed. The temperature monitoring planning of asphalt paving can be performed, and different temperature monitoring and recording are performed before paving and during paving respectively, and the analysis, judgment and feedback processing of temperature anomalies are performed without manual operation, which effectively improves the intelligence and automation level of asphalt paving temperature monitoring, and can avoid the uncertainty and complexity of the temperature monitoring process, and can promote the overall quality improvement of asphalt paving.

[0023] Figure 1 A flow chart of a method provided by an embodiment of the present invention is shown.

[0024] Specifically, a method for monitoring asphalt paving temperature comprises the following steps: Step S101, obtaining construction planning information of asphalt paving, carrying out temperature monitoring planning for transportation, before paving and during paving, and generating transportation monitoring planning information, pre-paving monitoring planning information and during paving monitoring planning information.

[0025] In an embodiment of the present invention, by acquiring construction planning information of asphalt paving, the construction planning information is analyzed to determine the asphalt paving area and the asphalt paving demand, and according to the asphalt paving demand, multiple asphalt transport vehicles are selected, and temperature monitoring planning for asphalt mixture transportation is performed based on the multiple asphalt transport vehicles to generate transportation monitoring planning information, and according to the asphalt paving demand, temperature monitoring planning for the asphalt mixture before paving is performed to generate pre-paving monitoring planning information, and according to the asphalt paving area and the asphalt paving demand, temperature monitoring planning for the asphalt mixture during paving is performed to generate in-paving monitoring planning information.

[0026] Specifically, Figure 2 A flow chart of temperature monitoring planning for transportation, before paving and during paving in the method provided by an embodiment of the present invention is shown.

[0027] Among them, in the preferred embodiment provided by the present invention, the obtaining of the construction planning information of asphalt paving, the temperature monitoring planning of transportation, before paving and during paving, and the generation of the transportation monitoring planning information, the monitoring planning information before paving and the monitoring planning information during paving specifically include the following steps: Step S1011, obtaining construction planning information for asphalt paving; Step S1012, analyzing the construction planning information, determining the asphalt paving area and asphalt paving requirements, and selecting multiple asphalt transport vehicles; Step S1013, performing temperature monitoring planning for transportation according to the plurality of asphalt transportation vehicles, and generating transportation monitoring planning information; Step S1014, performing temperature monitoring planning before paving according to the asphalt paving requirements, and generating pre-paving monitoring planning information; Step S1015: Perform temperature monitoring planning during paving according to the asphalt paving area and the asphalt paving requirements, and generate monitoring planning information during paving.

[0028] Among them, in the preferred embodiment provided by the present invention, the analysis of the construction planning information, determination of the asphalt paving area and asphalt paving requirements, and selection of multiple asphalt transport vehicles specifically include the following steps: Analyze construction planning information to capture budget constraints, weather conditions, vehicle efficiency, and planned construction completion times; The pre-trained random forest regression model is used as the construction prediction model, and the weather conditions, vehicle efficiency, vehicle cost and planned construction completion time are input into the construction prediction model to predict the construction success rate of each asphalt transport vehicle under different weather conditions; Taking the maximization of the construction success rate of each asphalt transport vehicle as the optimization goal, the construction success rate of each asphalt transport vehicle is multiplied by -1 to convert it into a minimization problem of a linear programming problem, thereby finally obtaining a linear optimization model; Taking the budget limit as the constraint of the optimization problem, the vehicle combination that provides the highest success rate within the budget limit is obtained by minimizing the linear optimization model.

[0029] In an embodiment of the present invention, a pre-trained random forest regression model is used as a construction prediction model to comprehensively consider multiple factors such as weather conditions, vehicle efficiency, cost, and construction time to predict the construction success rate of each asphalt transport vehicle under different weather conditions, and then optimize vehicle selection through simple linear programming. The construction success rate can be maximized within the budget constraint, ensuring the optimal allocation of resources, reducing waste, and improving construction efficiency.

[0030] Furthermore, the asphalt paving temperature monitoring method further comprises the following steps: Step S102: According to the transportation monitoring planning information, the temperature of the asphalt mixture during transportation is monitored and recorded in real time to obtain transportation temperature data.

[0031] In an embodiment of the present invention, a transport temperature monitoring instruction is periodically generated according to the transport monitoring planning information, and then the transport temperature monitoring instruction is sent to multiple asphalt transport vehicles, so that the multiple asphalt transport vehicles respond to the transport temperature monitoring instruction, and the temperature monitoring and feedback of the asphalt mixture transportation are performed by completing the initialization calibration of the temperature recorder or contact thermometer, and then the monitoring feedback data of the multiple asphalt transport vehicles are received, and the multiple monitoring feedback data are sorted and recorded to obtain the transport temperature data.

[0032] Specifically, Figure 3 A flow chart of obtaining transport temperature data in the method provided in an embodiment of the present invention is shown.

[0033] Among them, in the preferred embodiment provided by the present invention, the real-time monitoring and recording of the temperature of the asphalt mixture during transportation according to the transportation monitoring planning information to obtain the transportation temperature data specifically includes the following steps: Step S1021, periodically generating a transport temperature monitoring instruction according to the transport monitoring planning information; Step S1022, sending the transport temperature monitoring instruction to the plurality of asphalt transport vehicles; Step S1023, receiving monitoring feedback data of a plurality of asphalt transport vehicles; Step S1024, sorting and recording the plurality of monitoring feedback data to obtain transportation temperature data.

[0034] Among them, in the preferred implementation manner provided by the present invention, the periodic generation of the transport temperature monitoring instruction according to the transport monitoring planning information specifically includes the following steps: Obtain monitoring frequency, transportation route length and estimated transportation time from transportation monitoring planning information; Determine the basic monitoring interval based on the length of the transport route and the monitoring frequency; Generate a timestamp sequence based on the basic monitoring interval; Calculate the performance coefficient of each transport vehicle based on its efficiency and reliability; The basic monitoring interval is adjusted according to the historical temperature stability data and performance coefficient of each transport vehicle to obtain an adjusted monitoring interval; The adjusted monitoring interval is introduced into random disturbance to obtain the final monitoring interval; According to the final monitoring interval, the time point actually used for monitoring is selected from the timestamp sequence, and a transport temperature monitoring instruction is generated according to the monitored time point; According to the efficiency of the current transport vehicle and the current traffic time period, the priority of each transport temperature monitoring instruction is dynamically adjusted to obtain the final transport temperature monitoring instruction.

[0035] In the embodiment of the present invention, the performance indicators and historical data of the transport vehicles are taken into consideration to adjust the monitoring plan in a personalized manner. In this way, each transport vehicle can be optimally monitored according to its characteristics, thereby improving overall efficiency. In addition, the dynamic priority setting function makes resource scheduling more reasonable, ensuring more frequent monitoring during critical time periods or for key transport vehicles, thereby improving the responsiveness and reliability of the system.

[0036] Furthermore, the asphalt paving temperature monitoring method further comprises the following steps: Step S103, monitoring and recording the temperature of the asphalt mixture before paving according to the pre-paving monitoring planning information, to obtain pre-paving temperature data.

[0037] In an embodiment of the present invention, the pre-paving monitoring time is determined according to the pre-paving monitoring planning information, and then a pre-paving monitoring signal is generated at the pre-paving monitoring time. Then, according to the pre-paving monitoring signal, the temperature of the asphalt mixture before paving is monitored and recorded by a temperature recorder or contact thermometer that has completed initialization calibration, so as to obtain the pre-paving temperature data.

[0038] Specifically, Figure 4 A flow chart of obtaining pre-paving temperature data in the method provided in an embodiment of the present invention is shown.

[0039] Among them, in the preferred embodiment provided by the present invention, the temperature of the asphalt mixture before paving is monitored and recorded according to the pre-paving monitoring planning information, and obtaining the pre-paving temperature data specifically includes the following steps: Step S1031, determining the pre-paving monitoring time according to the pre-paving monitoring planning information; Step S1032, monitoring the time before paving and generating a pre-paving monitoring signal; Step S1033: Monitor and record the temperature of the asphalt mixture before paving according to the pre-paving monitoring signal to obtain pre-paving temperature data.

[0040] Among them, in the preferred embodiment provided by the present invention, the determining of the pre-paving monitoring time according to the pre-paving monitoring planning information specifically includes the following steps: Obtain estimated arrival time, complexity of transportation routes, equipment status and human resource status from pre-paving monitoring planning information; Obtain the basic monitoring time window based on the estimated arrival time and the complexity of the transportation route; Get current environmental data, including temperature, humidity and wind speed; An exponential function is used to capture the nonlinear effect of temperature change on monitoring time and obtain the temperature adjustment factor; The influence of humidity on asphalt paving temperature is captured in a linear way to obtain the humidity adjustment factor, and the humidity adjustment factor and the temperature adjustment factor are combined as the time adjustment factor. Based on the equipment status and human resource status, the resource adjustment factor is calculated; The effect of wind speed on asphalt cooling is captured in a linear manner to obtain the first environmental impact factor; The target optimization function is constructed with the time adjustment factor, resource adjustment factor and first environmental impact factor as variables and the basic monitoring time window as a constraint condition; The middle point of the basic monitoring time window is input as the starting point into the target optimization function for optimization solution. After the optimization is completed, the pre-paving monitoring time is obtained.

[0041] In the embodiment of the present invention, by integrating information on transportation planning, environmental factors, resource availability, etc., the optimal solution is found under multiple constraints to ensure that the selection of monitoring time is scientific and reasonable. The optimization process can balance multiple influencing factors and achieve precise time scheduling. Through reasonable time selection and dynamic adjustment, the potential risks caused by environmental changes or unstable resources are reduced, ensuring construction quality and progress.

[0042] Furthermore, the asphalt paving temperature monitoring method further comprises the following steps: Step S104, according to the monitoring planning information during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time to obtain the temperature data during paving.

[0043] In an embodiment of the present invention, the monitoring frequency during paving is determined according to the monitoring planning information during paving, and then the monitoring instructions during paving are intermittently generated according to the monitoring frequency during paving. Then, according to the monitoring instructions during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time by using a thermometer or infrared thermal imager that has completed initialization calibration to obtain the temperature data during paving.

[0044] Specifically, Figure 5 A flow chart of obtaining temperature data during paving in the method provided in an embodiment of the present invention is shown.

[0045] Among them, in the preferred embodiment provided by the present invention, the real-time monitoring and recording of the temperature of the asphalt mixture during paving according to the monitoring planning information during paving, and obtaining the temperature data during paving specifically include the following steps: Step S1041, determining the monitoring frequency during paving according to the monitoring planning information during paving; Step S1042, intermittently generating a paving monitoring instruction according to the paving monitoring frequency; Step S1043, according to the monitoring instruction during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time to obtain the temperature data during paving.

[0046] Among them, in the preferred embodiment provided by the present invention, the intermittent generation of the paving monitoring instruction according to the paving monitoring frequency specifically includes the following steps: Determine the current time point and use the current time point as the starting reference for generating monitoring instructions; Calculate the difference between the current temperature and the standard temperature to obtain the temperature difference; Calculate the difference between the current humidity and the standard humidity to obtain the humidity difference; Given a basic monitoring frequency, the temperature difference and the humidity difference are combined as a second environmental impact factor, and the basic monitoring frequency is preliminarily adjusted using the second environmental impact factor to obtain a preliminarily adjusted monitoring frequency; Obtaining historical paving performance data, extracting the consistency score of each piece of data in the historical paving performance data, and calculating the average of the consistency score of each piece of data; The initially adjusted monitoring frequency is dynamically adjusted according to the average value of the consistency score in the previous time step to obtain the current monitoring frequency, and a monitoring instruction is generated according to the current monitoring frequency.

[0047] In an embodiment of the present invention, the present invention takes into account environmental factors and historical paving performance data. When the good performance in the past in the historical paving performance data means that overly intensive monitoring may not be required under current conditions, the monitoring frequency can be adaptively reduced, thereby realizing dynamic generation of monitoring instructions.

[0048] Furthermore, the asphalt paving temperature monitoring method further comprises the following steps: Step S105, analyzing the transportation temperature data, the pre-paving temperature data and the paving temperature data, and performing analysis, judgment and feedback processing of temperature anomalies.

[0049] In an embodiment of the present invention, a temperature anomaly analysis is performed on the transport temperature data to determine whether there is a transport temperature anomaly. If there is a transport temperature anomaly, feedback of stopping transportation is given; a temperature anomaly analysis is performed on the pre-paving temperature data to determine whether there is a pre-paving temperature anomaly. If there is a pre-paving temperature anomaly, feedback of heating, cooling or adjusting the transport speed is given; a temperature anomaly analysis is performed on the temperature data during paving to determine whether there is a temperature anomaly during paving. If there is a temperature anomaly during paving, feedback of stopping paving, adjusting the compaction speed, adjusting the number of compaction passes and / or adjusting the vibration frequency is given to ensure that the quality of the road surface after paving and compaction meets the design requirements.

[0050] Specifically, Figure 6 The flowchart of the analysis, judgment and feedback processing of temperature anomaly in the method provided by the embodiment of the present invention is shown.

[0051] Among them, in the preferred embodiment provided by the present invention, the analysis of the transportation temperature data, the pre-paving temperature data and the paving temperature data, and the analysis, judgment and feedback processing of temperature anomalies specifically include the following steps: Step S1051, performing temperature anomaly analysis on the transport temperature data, and providing feedback to stop transport when there is a transport temperature anomaly; Step S1052, performing temperature anomaly analysis on the temperature data before paving, and providing feedback on heating, cooling or adjusting the transport speed when there is temperature anomaly before paving; Step S1053, performing temperature anomaly analysis on the temperature data during paving, and when there is temperature anomaly during paving, providing feedback such as stopping paving, adjusting compaction speed, adjusting compaction passes and / or adjusting vibration frequency.

[0052] Furthermore, Figure 7 The application architecture diagram of the system provided by the embodiment of the present invention is shown.

[0053] Among them, in another preferred embodiment provided by the present invention, an asphalt paving temperature monitoring system includes: The temperature monitoring planning unit 101 is used to obtain the construction planning information of asphalt paving, carry out temperature monitoring planning for transportation, before paving and during paving, and generate transportation monitoring planning information, pre-paving monitoring planning information and during paving monitoring planning information.

[0054] In an embodiment of the present invention, the temperature monitoring planning unit 101 obtains construction planning information of asphalt paving, analyzes the construction planning information, determines the asphalt paving area and the asphalt paving requirements, selects multiple asphalt transport vehicles according to the asphalt paving requirements, and performs temperature monitoring planning for asphalt mixture transportation based on the multiple asphalt transport vehicles to generate transportation monitoring planning information, and performs temperature monitoring planning for the asphalt mixture before paving according to the asphalt paving requirements to generate pre-paving monitoring planning information, and performs temperature monitoring planning for the asphalt mixture during paving according to the asphalt paving area and the asphalt paving requirements to generate in-paving monitoring planning information.

[0055] Specifically, Figure 8 It shows a structural block diagram of the temperature monitoring planning unit 101 in the system provided by an embodiment of the present invention.

[0056] Among them, in the preferred implementation manner provided by the present invention, the temperature monitoring planning unit 101 specifically includes: The information acquisition module 1011 is used to acquire the construction planning information of asphalt paving; An information analysis module 1012 is used to analyze the construction planning information, determine the asphalt paving area and asphalt paving requirements, and select multiple asphalt transport vehicles; The transport monitoring planning module 1013 is used to perform temperature monitoring planning of transport according to the plurality of asphalt transport vehicles and generate transport monitoring planning information; A pre-paving monitoring planning module 1014 is used to perform pre-paving temperature monitoring planning according to the asphalt paving requirements and generate pre-paving monitoring planning information; The in-paving monitoring planning module 1015 is used to carry out temperature monitoring planning during paving according to the asphalt paving area and the asphalt paving requirements, and generate in-paving monitoring planning information.

[0057] Furthermore, the asphalt paving temperature monitoring system also includes: The transport temperature monitoring unit 102 is used to monitor and record the temperature of the asphalt mixture in the transport process in real time according to the transport monitoring planning information to obtain transport temperature data.

[0058] In an embodiment of the present invention, the transport temperature monitoring unit 102 periodically generates a transport temperature monitoring instruction according to the transport monitoring planning information, and then sends the transport temperature monitoring instruction to multiple asphalt transport vehicles, so that the multiple asphalt transport vehicles respond to the transport temperature monitoring instruction, and perform temperature monitoring and feedback of asphalt mixture transportation by completing the initialization calibration of the temperature recorder or contact thermometer, and then receive the monitoring feedback data of multiple asphalt transport vehicles, and organize and record the multiple monitoring feedback data to obtain the transport temperature data.

[0059] Specifically, Fig. 9 It shows a structural block diagram of the transport temperature monitoring unit 102 in the system provided by an embodiment of the present invention.

[0060] Among them, in the preferred embodiment provided by the present invention, the transportation temperature monitoring unit 102 specifically includes: An instruction generation module 1021 is used to periodically generate transport temperature monitoring instructions according to the transport monitoring planning information; An instruction sending module 1022, used for sending the transport temperature monitoring instruction to the plurality of asphalt transport vehicles; A feedback receiving module 1023 is used to receive monitoring feedback data of a plurality of asphalt transport vehicles; The data sorting module 1024 is used to sort and record the plurality of monitoring feedback data to obtain transportation temperature data.

[0061] Furthermore, the asphalt paving temperature monitoring system also includes: The pre-paving temperature monitoring unit 103 is used to monitor and record the temperature of the asphalt mixture before paving according to the pre-paving monitoring planning information to obtain pre-paving temperature data.

[0062] In the embodiment of the present invention, the pre-paving temperature monitoring unit 103 determines the pre-paving monitoring time according to the pre-paving monitoring planning information, and then generates a pre-paving monitoring signal at the pre-paving monitoring time, and then according to the pre-paving monitoring signal, the temperature of the asphalt mixture before paving is monitored and recorded by a temperature recorder or contact thermometer that has completed initialization calibration, so as to obtain the pre-paving temperature data.

[0063] The paving temperature monitoring unit 104 is used to monitor and record the temperature of the asphalt mixture being paved in real time according to the paving monitoring planning information to obtain the paving temperature data.

[0064] In the embodiment of the present invention, the temperature monitoring unit 104 during paving determines the monitoring frequency during paving according to the monitoring planning information during paving, and then intermittently generates monitoring instructions during paving according to the monitoring frequency during paving, and then according to the monitoring instructions during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time through a thermometer or infrared thermal imager that has completed initialization calibration, so as to obtain the temperature data during paving.

[0065] The temperature anomaly processing unit 105 is used to analyze the transportation temperature data, the pre-paving temperature data and the paving temperature data, and perform analysis, judgment and feedback processing of temperature anomalies.

[0066] In the embodiment of the present invention, the temperature anomaly processing unit 105 performs temperature anomaly analysis on the transport temperature data to determine whether there is a transport temperature anomaly. If there is a transport temperature anomaly, feedback is given to stop transport; temperature anomaly analysis is performed on the pre-paving temperature data to determine whether there is a pre-paving temperature anomaly. If there is a pre-paving temperature anomaly, feedback is given to heating, cooling or adjusting the transport speed; temperature anomaly analysis is performed on the temperature data during paving to determine whether there is a pre-paving temperature anomaly. If there is a pre-paving temperature anomaly, feedback is given to stop paving, adjust the compaction speed, adjust the number of compaction passes and / or adjust the vibration frequency, so as to ensure that the quality of the road surface after paving and compaction meets the design requirements.

[0067] Specifically, Fig.10 The structure block diagram of the temperature anomaly processing unit 105 in the system provided by the embodiment of the present invention is shown.

[0068] Among them, in the preferred embodiment provided by the present invention, the temperature anomaly processing unit 105 specifically includes: The transport feedback module 1051 is used to analyze the transport temperature data for temperature anomalies, and to stop transport when the transport temperature is abnormal. The pre-paving feedback module 1052 is used to analyze the pre-paving temperature data for temperature anomalies, and to provide feedback on heating, cooling or adjusting the transport speed when there is a pre-paving temperature anomaly; The paving feedback module 1053 is used to perform temperature anomaly analysis on the temperature data during paving, and to provide feedback such as stopping paving, adjusting compaction speed, adjusting compaction passes and / or adjusting vibration frequency when there is temperature anomaly during paving.

[0069] It should be understood that, although each step in the flow chart of each embodiment of the present invention is shown in sequence according to the indication of the arrow, these steps are not necessarily performed in sequence according to the order indicated by the arrow. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in each embodiment may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0070] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for monitoring asphalt paving temperature, characterized in that: The method comprises the following steps: Obtain construction planning information for asphalt paving, conduct temperature monitoring planning for transportation, before paving, and during paving, and generate transportation monitoring planning information, pre-paving monitoring planning information, and during paving monitoring planning information; According to the transportation monitoring planning information, the temperature of the asphalt mixture during transportation is monitored and recorded in real time to obtain transportation temperature data; According to the pre-paving monitoring planning information, the temperature of the asphalt mixture before paving is monitored and recorded to obtain the pre-paving temperature data; According to the monitoring planning information during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time to obtain the temperature data during paving; Analyze the transportation temperature data, the pre-paving temperature data, and the paving temperature data, and perform analysis, judgment, and feedback processing on temperature anomalies; The obtaining of construction planning information for asphalt paving, carrying out temperature monitoring planning for transportation, before paving and during paving, and generating transportation monitoring planning information, pre-paving monitoring planning information and during paving monitoring planning information specifically include the following steps: Obtain construction planning information for asphalt paving; Analyzing the construction planning information, determining asphalt paving areas and asphalt paving requirements, and selecting multiple asphalt transport vehicles; Performing temperature monitoring planning for transportation according to the plurality of asphalt transportation vehicles, and generating transportation monitoring planning information; According to the asphalt paving requirements, pre-paving temperature monitoring planning is performed to generate pre-paving monitoring planning information; According to the asphalt paving area and the asphalt paving requirements, temperature monitoring planning during paving is carried out to generate monitoring planning information during paving.

2. The asphalt paving temperature monitoring method according to claim 1, characterized in that: The analyzing the construction planning information, determining the asphalt paving area and asphalt paving requirements, and selecting a plurality of asphalt transport vehicles specifically includes the following steps: Analyze construction planning information to capture budget constraints, weather conditions, vehicle efficiency, and planned construction completion times; The pre-trained random forest regression model is used as the construction prediction model. Weather conditions, vehicle efficiency, vehicle cost and planned construction completion time are input into the construction prediction model to predict the construction success rate of each asphalt transport vehicle under different weather conditions. Taking the maximization of the construction success rate of each asphalt transport vehicle as the optimization goal, the construction success rate of each asphalt transport vehicle is multiplied by -1 to convert it into a minimization problem of a linear programming problem, thereby finally obtaining a linear optimization model; Taking the budget limit as the constraint of the optimization problem, the vehicle combination that provides the highest success rate within the budget limit is obtained by minimizing the linear optimization model.

3. The asphalt paving temperature monitoring method according to claim 2, characterized in that: According to the transportation monitoring planning information, the temperature of the asphalt mixture during transportation is monitored and recorded in real time to obtain the transportation temperature data, which specifically includes the following steps: According to the transport monitoring planning information, periodically generate transport temperature monitoring instructions; sending the transport temperature monitoring instruction to the plurality of asphalt transport vehicles; Receiving monitoring feedback data of a plurality of said asphalt transport vehicles; The plurality of monitoring feedback data are collated and recorded to obtain transportation temperature data.

4. The asphalt paving temperature monitoring method according to claim 3, characterized in that: The periodic generation of the transport temperature monitoring instruction according to the transport monitoring planning information specifically comprises the following steps: Obtain monitoring frequency, transportation route length and estimated transportation time from transportation monitoring planning information; Determine the basic monitoring interval based on the length of the transport route and the monitoring frequency; Generate a timestamp sequence based on the basic monitoring interval; Calculate the performance coefficient of each transport vehicle based on its efficiency and reliability; According to the historical temperature stability data and performance coefficient of each transport vehicle, the basic monitoring interval is adjusted to obtain the adjusted monitoring interval; The adjusted monitoring interval is introduced into random disturbance to obtain the final monitoring interval; According to the final monitoring interval, the time point actually used for monitoring is selected from the timestamp sequence, and a transport temperature monitoring instruction is generated according to the monitored time point; According to the efficiency of the current transport vehicle and the current traffic time period, the priority of each transport temperature monitoring instruction is dynamically adjusted to obtain the final transport temperature monitoring instruction.

5. The asphalt paving temperature monitoring method according to claim 4, characterized in that: The method of monitoring and recording the temperature of the asphalt mixture before paving according to the pre-paving monitoring planning information to obtain the pre-paving temperature data specifically includes the following steps: Determine the pre-paving monitoring time according to the pre-paving monitoring planning information; During the pre-paving monitoring time, generating a pre-paving monitoring signal; According to the pre-paving monitoring signal, the temperature of the asphalt mixture before paving is monitored and recorded to obtain the pre-paving temperature data.

6. The asphalt paving temperature monitoring method according to claim 5, characterized in that: Determining the pre-paving monitoring time according to the pre-paving monitoring planning information specifically includes the following steps: Obtain estimated arrival time, complexity of transportation routes, equipment status and human resource status from pre-paving monitoring planning information; Obtain the basic monitoring time window based on the estimated arrival time and the complexity of the transportation route; Get current environmental data, including temperature, humidity and wind speed; An exponential function is used to capture the nonlinear effect of temperature change on monitoring time and obtain the temperature adjustment factor; The influence of humidity on asphalt paving temperature is captured in a linear way to obtain the humidity adjustment factor, and the humidity adjustment factor and the temperature adjustment factor are combined as the time adjustment factor. Based on the equipment status and human resource status, the resource adjustment factor is calculated; The effect of wind speed on asphalt cooling is captured in a linear manner to obtain the first environmental impact factor; The target optimization function is constructed with the time adjustment factor, resource adjustment factor and first environmental impact factor as variables and the basic monitoring time window as a constraint condition; The middle point of the basic monitoring time window is input as the starting point into the target optimization function for optimization solution. After the optimization is completed, the pre-paving monitoring time is obtained.

7. The asphalt paving temperature monitoring method according to claim 6, characterized in that: The real-time monitoring and recording of the temperature of the asphalt mixture during paving according to the monitoring planning information during paving to obtain the temperature data during paving specifically includes the following steps: Determine the monitoring frequency during paving according to the monitoring planning information during paving; intermittently generating paving monitoring instructions according to the paving monitoring frequency; According to the monitoring instruction during paving, the temperature of the asphalt mixture during paving is monitored and recorded in real time to obtain the temperature data during paving.

8. The asphalt paving temperature monitoring method according to claim 7, characterized in that: The intermittent generation of the paving monitoring instruction according to the paving monitoring frequency specifically comprises the following steps: Determine the current time point and use the current time point as the starting reference for generating monitoring instructions; Calculate the difference between the current temperature and the standard temperature to obtain the temperature difference; Calculate the difference between the current humidity and the standard humidity to obtain the humidity difference; Given a basic monitoring frequency, the temperature difference and the humidity difference are combined as a second environmental impact factor, and the basic monitoring frequency is preliminarily adjusted using the second environmental impact factor to obtain a preliminarily adjusted monitoring frequency; Obtaining historical paving performance data, extracting the consistency score of each piece of data in the historical paving performance data, and calculating the average of the consistency score of each piece of data; The initially adjusted monitoring frequency is dynamically adjusted according to the average value of the consistency score in the previous time step to obtain the current monitoring frequency, and a monitoring instruction is generated according to the current monitoring frequency.

9. The asphalt paving temperature monitoring method according to claim 8, characterized in that: The analysis of the transportation temperature data, the pre-paving temperature data and the paving temperature data to analyze and judge the temperature anomaly and to provide feedback includes the following steps: Performing temperature anomaly analysis on the transport temperature data, and providing feedback to stop transport when there is a transport temperature anomaly; Performing temperature anomaly analysis on the pre-paving temperature data, and providing feedback on heating, cooling or adjusting the transport speed when there is a pre-paving temperature anomaly; The temperature data during paving is analyzed for temperature anomalies, and when there are temperature anomalies during paving, feedback is given to stop paving, adjust the compaction speed, adjust the number of compaction passes and / or adjust the vibration frequency.

10. An asphalt paving temperature monitoring system, the system being applied to the asphalt paving temperature monitoring method according to any one of claims 1 to 9, characterized in that: The system includes a temperature monitoring planning unit, a transportation temperature monitoring unit, a pre-paving temperature monitoring unit, a paving temperature monitoring unit and a temperature anomaly processing unit, wherein: The temperature monitoring planning unit is used to obtain the construction planning information of asphalt paving, carry out temperature monitoring planning for transportation, before paving and during paving, and generate transportation monitoring planning information, pre-paving monitoring planning information and during paving monitoring planning information; A transport temperature monitoring unit, used to monitor and record the temperature of the asphalt mixture in real time during transportation according to the transport monitoring planning information, and obtain transport temperature data; A pre-paving temperature monitoring unit is used to monitor and record the temperature of the asphalt mixture before paving according to the pre-paving monitoring planning information to obtain pre-paving temperature data; A paving temperature monitoring unit is used to monitor and record the temperature of the asphalt mixture being paved in real time according to the paving monitoring planning information to obtain paving temperature data; The temperature anomaly processing unit is used to analyze the transportation temperature data, the pre-paving temperature data and the paving temperature data, and perform analysis, judgment and feedback processing of temperature anomalies.

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