说明：  用于智能交通领域 视频闯红灯软件中 对信号灯进行检测 获知信号灯是否处于红灯状态 从而检测车辆是否闯红灯
(Informed of the signal light is in the red light to detect whether a vehicle running a red light signal light detection for video red light running software in the field of intelligent transportation)