Highway safe driving system

Abstract

The invention relates to a system for enhancing vehicle driving safety on a highway. In the system, a GPS (Global Positioning System), a GPRS (General Packet Radio Service) system, a GIS (Geographic Information System) and other technologies are comprehensively utilized, the position and the speed of each vehicle on the whole highway can be precisely measured in real time, each vehicle can be made to learn the information of the vehicle per se and the information of surrounding relevant vehicles in real time, and proper measures can be taken when in necessity. The system is beneficial to not only great reduction of highway accidents but also great increase of highway trafficability in a severe weather.

Description

1 Technical field [0001] The present invention relates to a system for increasing driving safety of automobiles on expressways, which comprehensively uses GPS (Global Positioning System), GPRS (General Packet Radio Service) system and GIS (Geographic Information System) and other technical means. 2 background technology [0002] At present, the expressway management department basically does not grasp or manage the driving conditions on the road, but simply manages them in foggy and snowy days-release at limited time intervals or simply close the entire expressway. This can not help greatly affecting traffic, and the concentration of fog is constantly changing with time and place. Vehicles released when the visibility at the entrance is still good, often encounter dense fog on the way, often causing serious accidents such as serial rear-end collisions. [0003] At present, the "anti-collision radar" installed in some cars either uses ultrasonic waves, which have a very shor...

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Problems solved by technology

[0009] Through the search of China Patent Information Center and other relevant websites, it is found that there are also vehicle "rescue" and "navigation" systems that combine GPS and GPRS, but the positioning and speed accuracy is insufficient, and the driving safety of the expressway cannot be enhanced. The invention is far from

There is only one patent "Comprehensive Monitoring Device for Highway Based on Integrated Navigation", which is somewhat similar, but it does not use differential correction technology, and the accuracy is insufficient (the position error of civilian GPS is 15 meters, so the estimated speed error can exceed 40Km / h). Because of the overspeed warning, it is obviously not practical; in addition, the patent cannot determine which lane the vehicle is in, and cannot notify it of the distance and direction of the nearby vehicles and it, and its practicability is limited in bad weather; finally, the patent stipulates that the engine The device does not work after parking, which is also not conducive to the overall safety of the road

There are also three patents "Meter-level Accuracy Real-time Differential GPS Handheld Collector Based on GPRS Communication", "GPS Handheld Differential Companion Device" and "Real-time Differential Large-Screen Handheld", which can indeed improve the position GPS accuracy, but only for static Topographic survey, cannot be used for vehicle management systems on highways

Thereby, so far, have not found that any expressways have been installed and used the driving safety system similar to the present invention

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