Highway intelligent aided guidance system based on GPRS (General Packet Radio Service)/CDMA (Code Division Multiple Access) wireless network and control method thereof

Abstract

The invention relates to a highway intelligent aided guidance system based on a GPRS (General Packet Radio Service) / CDMA (Code Division Multiple Access) wireless network and a control method thereof. The highway intelligent aided guidance system based on the GPRS / CDMA wireless network is characterized by comprising a wireless network composed of a traffic information board node, a variable speed-limiting signboard node, a visibility detection node and a background monitoring center, wherein the background monitoring center is connected with the GPRS / CDMA wireless network, initializes settings of the traffic information board node, the variable speed-limiting signboard node and the visibility detection node and monitors the working state of the nodes; meanwhile the background monitoring center formulates an overall guidance scheme according to road condition parameters sent by the visibility detection node and guidance content fed back by the traffic information board node and the variable speed-limiting signboard node, and sends guidance adjusting commands to the corresponding traffic information board node and variable speed-limiting signboard node through the GPRS / CDMA wireless network; and the background monitoring center informs a highway department to take emergency measures such as road closure and the like under a particularly severe road condition.

Description

technical field [0001] The invention relates to an electronic device for intelligent auxiliary guidance on expressways, in particular to an intelligent auxiliary guidance system for highways based on a GPRS / CDMA wireless network and a control method thereof for realizing safe passage of vehicles on expressways under severe weather conditions. Background technique [0002] In recent years, with the continuous development of my country's economy, highway construction has also entered a period of rapid development. According to statistics, by the end of the "Eleventh Five-Year Plan" period, the total mileage of expressways in my country has grown to 74,000 kilometers, ranking second in the world. The country not only needs to plan, design and build expressways, but also needs to use modern information technology to manage expressways scientifically, so as to give full play to the advantages of "fast speed, high efficiency, time saving and high benefit" of expressways, and tap i...

AI Technical Summary

Problems solved by technology

However, once the weather suddenly changes and the visibility drops significantly, it is often difficult for the rear control center to discover and release some guiding or warning information in time, resulting in insufficient real-time information dissemination or insufficient warning time. At this time, the vehicle driver often cannot make correct judgments in time or Handling, resulting in traffic accidents and road congestion

Compared with foreign countries, my country currently has no measures to effectively induce vehicle traffic on expressways in severe weather such as rain, snow, hail, and dense fog.

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