Contact type meteorological monitoring pavement sensor for road traffic

Abstract

A contact type meteorological monitoring pavement sensor for road traffic comprises a microcontroller, a water film thickness detecting module, a freezing point temperature module, a multi-frequency capacitance detecting module, a pavement temperature detecting module, an RS232 communication module and a power management module, wherein an input end of the water film thickness detecting module is connected with a first output end of the microcontroller; an input end of the freezing point temperature module is connected with a second output end of the microcontroller; an input end of the multi-frequency capacitance detecting module is connected with a third output end of the microcontroller; an input end of the pavement temperature detecting module is connected with a fourth output end of the microcontroller; the RS232 communication module is connected with the microcontroller; and the power management module respectively supplies power for the microcontroller, the water film thickness detecting module, the freezing point temperature module, the multi-frequency capacitance detecting module and the RS232 communication module. The contact type meteorological monitoring pavement sensor for road traffic has the advantages of comprehensive testing physical quantity and low cost.

Description

technical field [0001] The invention belongs to the technical field of road traffic meteorological environment monitoring, and in particular relates to a contact road surface sensor for road traffic meteorological monitoring, which is used to monitor the current road surface state, and simultaneously output the current road surface temperature and the water film thickness under the wet water state , and the freezing temperature of the road surface in winter. Background technique [0002] With the rapid development of the transportation industry, the impact of road conditions on transportation is becoming more and more extensive. Poor road conditions, especially icy road conditions, seriously reduce the efficiency of road transportation and may bring huge losses to transportation. It even threatens people's lives. Therefore, timely and accurate access to severe weather warning information has become a necessary condition for traffic management and people's travel. Fine and ...

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Problems solved by technology

[0004] At present, some foreign products have been used in China, such as the IRS21 of the German LUFFT company, the DRS511 of the Vaisala company, and the FP2000 of the American QTT company. During use, it is found that these products cannot fully meet our requirements. First, the domestic climate The focus of environmental and road surface meteorological condition information detection is very different from that of foreign countries, and foreign products do not meet the direct use of various domestic industries

Secondly, the standards and specifications on which foreign pavement weather sensor products are based are not exactly the same as our domestic ones, and do not meet the actual use standards of domestic products; thirdly, the prices of foreign products are generally high, which is not conducive to our large amount of equipment

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