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Support vector machine-based freezing early warning system for salt-storage asphalt pavement

A technology of asphalt pavement, icing, used in forecasting, computer parts, instruments, etc.

Pending Publication Date: 2021-10-08
BEIJING UNIV OF TECH
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Problems solved by technology

At this stage, there is still a lack of research on the early warning method of icing on organic salt-storage asphalt pavement and the exploration of the early warning system for pavement icing in winter

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  • Support vector machine-based freezing early warning system for salt-storage asphalt pavement
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  • Support vector machine-based freezing early warning system for salt-storage asphalt pavement

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Embodiment Construction

[0019] In the following, the technical solutions of the embodiments of the invention will be fully described in conjunction with the examples of the invention.

[0020] The first is a complete description of the establishment and implementation of the early warning algorithm for organic salt-storage asphalt pavement icing with support vector machines.

[0021] This patent mainly adopts the method of support vector machine regression to establish the early warning algorithm of the freezing time of organic salt-storage asphalt pavement, and the support vector machine algorithm is a novel and applicable small-sample learning method with a solid theoretical foundation, and has certain generalization Ability, support vector machine (Support Vector Machine, SVM) is a kind of generalized linear classifier for binary classification of data according to supervised learning, and the support vector regression method can be obtained by extending SVM from classification problems to regressi...

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Abstract

The invention relates to a freezing early warning method for an organic salt storage asphalt pavement. The freezing early warning method is suitable for freezing early warning of the organic salt storage asphalt pavement under an extremely low temperature condition. According to the early warning method, weather information is collected, a machine is used for learning an established ice condensation early warning algorithm, short-time prediction is carried out on the road surface state, and early warning is carried out through a system. The system is composed of a meteorological acquisition station, a management control terminal, information issuing equipment and the like. The logic of icing early warning is mainly divided into four parts, namely data acquisition, data processing, information issuing and decision processing. The system obtains information through the on-site meteorological acquisition station, calculates the predicted icing time of the current environment through an algorithm, judges whether the predicted icing time exceeds a set threshold value or not, and gives an alarm to the system so as to timely inform related personnel to take corresponding auxiliary measures. When the problem of icing is solved, early warning can be automatically relieved. The method overcomes the defects of the organic salt storage asphalt pavement in coping with extremely low-temperature weather, and has relatively high practicability.

Description

technical field [0001] The invention relates to the field of road safety systems, and proposes an icing early warning method established based on a support vector machine regression algorithm, which is a winter icing early warning method suitable for organic salt-storing asphalt pavement. Background technique [0002] In recent years, an active snow melting technology has been gradually known and applied, that is, salt-storing asphalt pavement. The salt-storage ice-suppressing material is added into the asphalt mixture in the form of replacing mineral powder, and paved into the salt-storage asphalt pavement. Under the repeated friction of the vehicle, the salt gradually seeps out through osmotic pressure and capillary phenomenon, which has the effect of delaying the icing of the road surface. The main component of salt-storage asphalt pavement is salt-storage ice-suppression material. When the main component of salt-storage ice-suppression material is organic salt, the pave...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06Q10/04
CPCG06Q10/04G06F18/2411G06F18/214
Inventor 张志清刘文迪吴欣桐李东钊
Owner BEIJING UNIV OF TECH
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