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Temperature field data reconstruction method and system and storage medium

A data reconstruction and temperature field technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of narrow data display and achieve the effect of wide coverage of monitoring points

Active Publication Date: 2019-10-29
GUANGZHOU UNIVERSITY
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Problems solved by technology

Publication No. CN108547203 A invention patent discloses an OFDR-based asphalt pavement deformation monitoring system and its application method. The method adopts S-shaped arrangement of distributed optical fibers in the geogrid, and uses a data acquisition device for real-time data collection and transmission. Through the data The processing system obtains the temperature and strain changes of the asphalt pavement. This method has strong environmental adaptability and comprehensive data collection. However, the data display is still completed by processing the key point data to obtain the stress-strain curve. The data coverage Wider, but the data display area is still relatively narrow

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  • Temperature field data reconstruction method and system and storage medium
  • Temperature field data reconstruction method and system and storage medium
  • Temperature field data reconstruction method and system and storage medium

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specific Embodiment approach

[0084] S1. Use MATLAB to draw Archimedes spirals in the same arrangement as the data acquisition scheme. In this embodiment, the function equation of the Archimedes spiral can be expressed in polar coordinates as:

[0085] r=a+bθ

[0086] Among them, r represents the pole diameter; a represents the distance between the starting fiber point and the origin, that is, the length of the pole diameter when the fiber deflection angle is 0; θ denotes the deflection angle of the fiber; b denotes the curvature of the fiber, which specifically represents every other A unit angle, the change value of the diameter.

[0087] When drawing the Archimedes spiral, ensure that the sampling points are distributed with equal arc length. Among them, the arc length between two adjacent points is the resolution. For an equidistant helix, if the distance between the two circles of optical fibers is d, then it is satisfied,

[0088] d=b·2π

[0089] Suppose the distance between every two monitoring points on ...

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Abstract

The invention discloses a temperature field data reconstruction method and system and a storage medium. The method comprises the following steps: drawing original data into a spiral line by utilizinga spiral line function equation of an MATLAB tool; carrying out meshing on the spiral lines through a meshgrid function in an MATLAB tool, and obtaining a coordinate set; carrying out fitting processing on the original data through a griddata function in an MATLAB tool; performing interpolation processing on the coordinate set according to a fitting processing result; and carrying out temperaturefield reconstruction on the interpolated data through a surf function in an MATLAB tool. According to the method, a key point time domain curve description mode in temperature analysis is broken through, and a result is displayed through a temperature field, so that the result is more intuitive; besides, compared with the prior art that key points are used for monitoring and a curve is used for displaying the monitoring effect, the monitoring point culvert surface of the method and system is wider and more visual, and the method and system can be widely applied to the technical field of optical fiber temperature monitoring.

Description

Technical field [0001] The invention relates to the technical field of optical fiber temperature monitoring, in particular to a temperature field data reconstruction method, system and storage medium. Background technique [0002] The temperature can be monitored by temperature sensors, such as thermistors, thermocouples, and fiber optic sensors. Thermistors use semiconductor materials, mostly with negative temperature coefficients, that is, the resistance decreases with increasing temperature, and temperature changes will cause large resistance changes. The thermocouple is the most commonly used temperature sensor in temperature measurement. The thermocouple is composed of two different metal wires connected at one end. When one end of the thermocouple is heated, an electric potential difference will be generated in the thermocouple circuit. The measured electric potential difference is used to calculate the temperature. Changes in the temperature of the optical fiber will caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2119/08G06F30/20
Inventor 朱萍玉王帅斌王野天吴江黄孟娇蒋笑楠
Owner GUANGZHOU UNIVERSITY
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