Vehicle-mounted weather auxiliary monitoring and variable speed limit prompt system

Abstract

The invention reveals a vehicle-mounted weather auxiliary monitoring and variable speed limit prompt system, and the system comprises a vehicle-mounted weather monitoring module, a vehicle speed sensor, an RWIS (road weather information system), a GPS / GPRS integrated module, a speed limit prompt module, and a vehicle-mounted embedded control terminal MCU. The vehicle-mounted weather monitoring module, the vehicle speed sensor, the GPS / GPRS integrated module and the speed limit prompt module are in communication connection with the vehicle-mounted embedded control terminal MCU, and the RWIS isin communication connection with the GPS / GPRS integrated module. The system can dynamically monitor the weather information under the severe weather conditions, such as rain, snow, fog, ice and so on.The system provides the reliable speed limit prompt value in real time, solves the variable speed limit values under different weather conditions, and guarantees that a vehicle still can run safely under the severe weather conditions.

Description

technical field [0001] The invention relates to a vehicle weather auxiliary monitoring and variable speed limit reminding system. Background technique [0002] Different weather conditions have different impacts on traffic roads. Good weather makes vehicles run smoothly, but when encountering disastrous weather such as rain, snow, fog, and ice, the driver's sight is affected, the road adhesion is reduced, and the vehicle It is easy to slip, run off track, and easily cause traffic accidents. The impact of bad weather on traffic safety is a problem that people have been paying attention to. Studying the road safety guarantee system under adverse weather conditions and formulating corresponding speed limit management measures can prevent road traffic accidents, reduce accident rates, and ensure traffic safety. is of great significance. The existing road weather information system (Road Weather Information System, RWIS) is an intelligent transportation system (ITS) that adopts...

AI Technical Summary

Problems solved by technology

As of 2016, the distance between RWIS meteorological monitoring stations at home and abroad is mainly concentrated in the range of 10-30 kilometers. This large-scale local setting cannot meet the monitoring and early warning of abrupt climate change in a small area.

The current road weather monitoring and variable speed limit systems mainly focus on setting up static weather monitoring stations on the road to collect various static weather information and provide early warning information to driving vehicles through information release boards or RFID. Different, the static meteorological information monitored by a single long-distance cannot meet the further safety and speed limit driving requirements of dynamic vehicles.

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