Traffic signal light countdown prediction method based on navigation system

Abstract

The invention relates to a traffic signal light countdown prediction method based on a navigation system. The method comprises the steps that 1 traffic light countdown broadcast of the first traffic light in the heading direction of a vehicle is carried out; 2 the instant moment when a number of vehicles pass through the traffic light respectively is acquired; 3 multiple instant moments acquired in the step 2 are classified into a data group D; 4 three variables which are the green light start time T0, the green light duration Tg and the red light duration Tr, which are corresponding to the heading direction of the signal light, are set; 5 N groups of Ti=(T0, Tg, Tr) are generated; and 6 the optimal T0, Tg and Tr are found through a gathering point part formed by the vehicle passing through an intersection during a green time and a missing part formed by no vehicle passing through the intersection during a red light. According to the invention, the duration of the traffic red and greenlights and the alternate moments thereof can be accurately predicted; a driver is reminded of how many seconds are left by each traffic light in front of the driver; and the driver can control the vehicle speed through the countdown information and can smoothly pass through the traffic lights.

Description

technical field [0001] The invention relates to the technical field of traffic signal lamp countdown prediction, in particular to a traffic signal lamp countdown prediction method based on a navigation system. Background technique [0002] At present, navigation maps such as AutoNavi Maps, Baidu Maps, and Tencent Maps have the function of displaying the location of traffic lights. However, none of these maps can display the remaining time of red or green lights in traffic lights. [0003] If you want to get the remaining time of the red or green lights in the traffic lights, you need to cooperate with the traffic police department to obtain the information on the switching time of the traffic lights from its system. This method can accurately obtain the remaining time of traffic lights, but it requires the cooperation of the traffic police department for data sharing. [0004] For this reason, this patent proposes a predictive algorithm for the countdown of traffic signal l...

AI Technical Summary

Problems solved by technology

This method can accurately obtain the remaining time of traffic lights, but it requires the cooperation of the traffic police department for data sharing

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