Method for safety early warning for track curve and recording journey in navigation system

Abstract

The invention is a bend safety precaution method for a navigation system, for avoiding the damage in safety caused by fatigue or carelessness during driving in a vehicle, using GPS to learn the current coordinate point of the vehicle and using inertia measurer to learn the vehicle advancing direction, and taking a distance before the current coordinate point as a preestimated distance, comparing the current vehicle speed with the safe vehicle speed prestored in an electronic map within the preestimated distance: if the vehicle speed exceeds the safe vehicle speed, making an caution; and besides, completely recording actual vehicle speed, rotating angle of steering wheel, GPS coordinate point and time.

Description

technical field

[0001] The invention relates to a navigation system, in particular to a curve safety early warning and driving recording method of the navigation system. Background technique

[0002] As far as transportation is concerned, more and more users are gradually relying on navigation systems to guide driving routes and place names; however, the road information of many early navigation systems only uses images to display information. , without any guidance, so that this kind of navigation system can only provide a reference for driving direction, and its navigation value is low.

[0003] Recently, the functions of the navigation system have been improved, and there are more sufficient guidance for the road conditions ahead, such as providing guidance on the legal maximum speed limit ahead, or capturing the shape of the intersection ahead, and displaying and zooming in, or guidance on the curve ahead, To provide the highest safe speed limit under this curve conditi...

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