The invention discloses a flash induction transient brightness traffic signal lamp, relates to a signal lamp brightness control technology, and belongs to the field of intelligent traffic signal lamps. The invention discloses an intelligent traffic signal lamp, which not only meets the traffic flow control of the basic traffic signal lamp, but also meets the law violation snapshot and evidence obtaining requirements of an electronic police system based on the state of the traffic signal lamp. When an electronic police captures an illegal behavior of running the red light of a vehicle, a red signal lamp on a picture is required to be clearly identified to be red, but most of red lights appear to be white or yellow on an illegal evidence taking picture captured at night. According to the invention, the working voltage of the lamp bead array of the signal lamp is reduced in real time by rapidly detecting the flash moment of the flash lamp during snapshot of the electronic police, so that the brightness of the signal lamp is reduced, and the brightness of the signal lamp in the snapshot exposure interval of the electronic police snapshot machine is in a dark state; after exposure is ended, the working voltage of the signal lamp bead array immediately recovers to the brightness state before snapshot.
本发明是一种闪光感应瞬变亮度交通信号灯,涉及信号灯亮度控制技术,属智能交通信号灯领域。智能交通信号灯,除了满足基本的交通信号灯的交通流量控制外,还应能满足以交通信号灯状态为基础的电子警察系统的违法抓拍取证要求。在电子警察抓拍车辆闯红灯违法行为时,要求能清晰辨识出照片上的红色信号灯为红色,但在夜间抓拍的违法取证照片上,绝大多数的红灯看上去是发白或发黄。本发明通过快速检测电子警察抓拍时闪光灯闪光瞬间,即时降低信号灯灯珠阵列的工作电压,从而降低信号灯的发光亮度,使得在电子警察抓拍机抓拍曝光区间的信号灯亮度处于较暗状态,当曝光结束后,信号灯灯珠阵列的工作电压又即时恢复到抓拍前的亮度状态。
Flash induction transient brightness traffic signal lamp
一种闪光感应瞬变亮度交通信号灯
2021-06-04
Patent
Elektronische Ressource
Chinesisch
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