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Portable ice and snow sensing device used for pavement

A sensing device, portable technology, applied in the direction of measuring device, optical device, transmittance measurement, etc., can solve the problems of few products, incomplete research on road surface ice and snow monitoring, etc., to achieve convenient alignment adjustment and small footprint , The effect of low manufacturing cost

Active Publication Date: 2019-06-21
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on ice and snow monitoring on pavement is very imperfect, and there are very few practical application products

Method used

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  • Portable ice and snow sensing device used for pavement
  • Portable ice and snow sensing device used for pavement
  • Portable ice and snow sensing device used for pavement

Examples

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0031] The present invention provides a portable ice and snow sensing device for pavement, such as figure 1 with figure 2 As shown, it includes a container 1, a sensing unit and a measuring unit; wherein, the container 1 is used to receive the medium to be measured falling into the pavement, and the medium to be measured is any one or any combination of ice, snow, and water; The sensing unit described above is an optical fiber collimator, distributed on the inner wall of the container; the measuring unit includes a light source 5, a photoelectric converter 9 and a signal processing module 10; the laser light emitted by the light source 5 is incident on the optical fiber collimator on the light output side, Penetrate the medium to be measured in the container 1, then receive it by the optical fiber collimator on the light receiving side, convert it i...

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Abstract

The invention provides portable ice and snow sensing device used for a pavement. The device includes a container, a sensing unit and a measuring unit; the sensing unit is an optical fiber collimator and is distributed on the inner wall of the container; the measuring unit comprises a light source, a photoelectric converter and a signal processing module; laser emitted from the light source is incident on a light-emitting side optical fiber collimator, penetrates through a to-be-tested medium in the container, received by a light-receiving side optical fiber collimator, is converted into an electrical signal by the photoelectric converter, and is sent to the signal processing module; and according to a difference existing in a refraction loss caused by different light transmission absorption losses and refractive indexes of different media when the laser penetrates through the to-be-tested medium, a changed of light intensity is measured to solve the thickness of the to-be-tested medium, and different medium forms are also discerned. The device has the advantages of simple structure, small occupied space, low manufacturing cost, high recognition degree of physical states of ice, snow and water, and strong measurement capability for ice and snow thickness.

Description

technical field [0001] The invention belongs to the field of photoelectric sensing and monitoring, and in particular relates to a portable ice and snow sensing device for pavement. Background technique [0002] In winter, the temperature is low, and it is easy to snow, or the road surface may freeze. The coverage of ice and snow will greatly reduce the friction coefficient of the road surface, which will bring great safety hazards to various vehicles. If the snow and icing conditions on the pavement can be detected in time and fed back to the pavement manager, countermeasures can be taken in advance to reduce the occurrence of safety accidents. [0003] At present, there are already some mature products for road surface ice and snow monitoring in foreign countries. Monitor road water accumulation and icing phenomena in different invisible spectral segments; the gun-type infrared temperature icing sensor developed by Wahl Equipment Company of the United States obtains icing...

Claims

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Application Information

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IPC IPC(8): G01B11/06G01N21/59G01N21/41
Inventor 戴玉堂王赟梁磊王宁王攸
Owner WUHAN UNIV OF TECH
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