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Pavement self-driven skid resistance detection device and method based on paper folding-friction nanometer power generation technology

A nanometer power generation and detection device technology, applied in the direction of friction generators, measuring devices, mechanical devices, etc., can solve the problems of narrow frequency band, high signal sensitivity, low energy conversion efficiency, etc., and achieve low cost, high perception sensitivity, and structure simple effect

Pending Publication Date: 2022-04-12
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, self-driven sensing technologies based on electromagnetic induction, photoelectricity, piezoelectricity, and pyroelectric effects have been studied in depth, but they all have defects such as low energy conversion efficiency, narrow frequency band, and excessive signal sensitivity.

Method used

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  • Pavement self-driven skid resistance detection device and method based on paper folding-friction nanometer power generation technology
  • Pavement self-driven skid resistance detection device and method based on paper folding-friction nanometer power generation technology
  • Pavement self-driven skid resistance detection device and method based on paper folding-friction nanometer power generation technology

Examples

Experimental program
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Embodiment 1

[0041] In order to effectively illustrate the rationality of a road surface self-driven anti-slip detection device based on origami-friction nano-power generation technology designed by the present invention as an electrical sensor, this implementation case 1 is designed to conduct research on its electrical performance.

[0042] A self-driven anti-slip detection device for road surfaces based on origami-friction nano-power generation technology, its structure is as follows figure 1 As shown, it includes self-driven origami-friction nano-power generation anti-skid detection structure 1, brush slip ring structure 2, rotating motor stabilizer 3, test test board 4, signal acquisition device 5 and signal processing software 6. The skid resistance detection structure 1 is fixed on the tire surface, and directly touches and rubs with the test board 4 to sense the skid resistance.

[0043]The crease structure used in self-driven origami-friction nano-power generation skid resistance ...

Embodiment 2

[0054] Further, in this example, OGFC-13 rutting plates with different roughness were prepared to actually verify the anti-skid performance of a road surface self-driven skid resistance detection device based on origami-friction nano-power generation technology constructed in Example 1. Perception. Specifically, in order to reduce the roughness of the OGFC rut plate surface, one of the rut plate surfaces was polished to form a rut plate surface with a significant friction coefficient contrast.

[0055] In this embodiment, the positive friction layer, the positive electrode and the negative electrode are all copper foil, and the negative friction layer is a friction layer made of polytetrafluoroethylene PTFE, which can light up 100 LEDs in the vertical contact-separation mode diode.

[0056] The skid resistance detection structure prepared in this embodiment is installed on the outer surface of the tire, and the experimental steps include as follows:

[0057] (1) After fixing...

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Abstract

The invention relates to a pavement self-driven skid resistance detection device and a pavement self-driven skid resistance detection method based on a paper folding-friction nanometer power generation technology, and a self-driven paper folding-friction nanometer power generation skid resistance detection structure adopts a paper folding multi-layer structure so as to remarkably amplify the output effect of the adopted friction nanometer power generation principle; the electric brush slip ring structure is used for preventing mutual winding of wires when the tire rotates; the rotating motor stabilizing frame is made of an aluminum alloy material and is made into a stable triangular structure, and the frequency of the rotating motor can be adjusted so as to simulate different vehicle speeds when the vehicle runs; different grading requirements can be designed for the test board according to an actual pavement; the signal acquisition device is used for acquiring electrical output of the self-driven sensing element in real time; the signal processing software can carry out noise reduction, filtering, smoothing and other processing on the collected signals. Compared with the prior art, the system has the advantages of real-time anti-skid monitoring, sensitive information perception, simple structure, wide material selection, low cost and the like.

Description

technical field [0001] The invention relates to the field of skid resistance detection for asphalt pavement, in particular to a road surface self-driven skid resistance detection device and detection method based on origami-friction nano power generation technology. Background technique [0002] Skid resistance is one of the important characteristics of pavement surface characteristics, and insufficient pavement skid resistance is the main cause of traffic accidents. The friction coefficient between tires and road surfaces is the main index to measure the skid resistance performance. The friction coefficient of asphalt pavement is mainly affected by various factors such as water film, temperature, surface pollutants and pavement structure type. Among them, external environmental factors including water film, temperature and surface pollutants have far more influence on the pavement skid resistance than the pavement structure itself. Compared with dry pavement, the skid resi...

Claims

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Application Information

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IPC IPC(8): G01N19/02H02N1/04
CPCY02T90/00
Inventor 朱兴一庞亚凤杜豫川
Owner TONGJI UNIV
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