Method and system for temperature monitoring in asphalt transport process

Abstract

The present invention is a method and system for temperature monitoring in an asphalt material transportation process. The method includes step 1: collecting multiple sets of data, each set of data including wind speed, air temperature, the radiant temperature of the asphalt mixture and the asphalt mixture at each temperature measurement point. The four parameters of the actual temperature of the material are determined; the second step is to build a temperature monitoring model; the third step is to use the temperature monitoring model obtained in the second step to monitor the temperature during the transportation of the asphalt mixture. The system includes intelligent processing equipment, data acquisition instrument, non-contact infrared temperature detector, contact temperature probe, wind speed sensor and thermometer; the data acquisition instrument communicates with intelligent processing equipment, non-contact infrared temperature detector and contact All temperature probes are connected to the data acquisition instrument; the wind speed sensor and the thermometer transmit the collected data to the intelligent processing device. The method realizes the non-contact intelligent monitoring during the transportation process, and solves the problem that the temperature during the transportation of the asphalt mixture is difficult to monitor in real time.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a temperature monitoring method and system in an asphalt material transportation process. Background technique [0002] Since asphalt is a viscoelastic material, various parameters and properties of asphalt are greatly affected by temperature, especially when the asphalt mixture is used for paving and rolling, the temperature will directly affect the paving and pressing of asphalt pavement. real quality. When the temperature is high, a higher compaction and better compaction effect can be obtained with less rolling times, but if the rolling temperature is too high, transverse cracks or unevenness of the road surface will occur. When the rolling temperature is too low, the fluidity of the asphalt mixture is too poor, the road surface is difficult to be compacted, and it is easy to form large voids, which will lead to the infiltration of water, reduce the cohesive force,...

AI Technical Summary

Problems solved by technology

However, in the existing asphalt transportation process, there is no means to monitor the asphalt temperature, and the temperature during asphalt paving and preliminary rolling may not meet the requirements for use

[0004] One of the traditional methods of measuring asphalt temperature is to use contact sensors such as probes to directly measure manually. This measurement method usually selects some points randomly and conducts spot checks. Only the temperature at a certain point can be obtained, and it cannot be measured at a deeper level The asphalt temperature cannot be obtained, and the attenuation of the asphalt temperature cannot be obtained, and the information on the asphalt temperature distribution that can be reflected is limited

The other is to install the contact sensor at a fixed position in the vehicle body, and the contact sensor measures the temperature data in real time. However, in fact, the force of loading and unloading asphalt mixture on the truck can reach three tons, and the contact sensor cannot bear this force. Very easy to damage the contact sensor or position shift, resulting in inaccurate measurement

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