1. Introduction With the accelerati

1. Introduction With the acceleration of urbanization and the widespread popularization of automobiles, traffic problem has become one of the most disturbing and serious problems in the world. At the same time, intelligent connected vehicles occupy an increasingly important position. Traffic signal light is one of the important information guidance of traffic signals. Accurate identification of traffic signal light in advance is conducive to the pre-planning of the path of intelligent networked vehicles, so as to decide the choice of vehicle parking or execution. Therefore, the study of traffic signal light identification technology also has important significance and good application prospects.