An intelligent light-supplementing LED system for message signs and traffic lights includes multiple optical lenses and LED units which are respectively provided behind each of the optical lens. The LED units include at least two LEDs connected in parallel; multiple LED units are connected in parallel to form a parallel system unit, or multiple LED units are connected in series to form a serial system unit. The parallel system unit is connected to a constant current power supply or a constant current circuit. The serial system unit is connected to a constant current power supply, a constant-voltage DC source, or a constant current circuit. So if an LED fails to light up, the total current that passes through the LED unit will have no or little change.


    Access

    Download


    Export, share and cite



    Title :

    Intelligent Light-supplementing LED System for VMSs and Traffic Signal Lights


    Contributors:
    HUANG DASEN (author) / PENG YUN (author) / LIN GUIYUAN (author) / WANG ZHENXIANG (author)

    Publication date :

    2017-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G09F DISPLAYING , Anzeigewesen / H05B ELECTRIC HEATING , Elektrische Heizung



    Intelligent light supplementing method and system for traffic light

    YAN JUN / HUO JIANJIE | European Patent Office | 2024

    Free access

    Intelligent LED light supplementing system

    CHEN XIANGQUN | European Patent Office | 2020

    Free access

    BOTTOM TRAFFIC SIGNAL LIGHTS CONTROLED WITH CROSSWALK TRAFFIC SIGNAL LIGHTS

    NAM IN DO | European Patent Office | 2018

    Free access

    BOTTOM TRAFFIC SIGNAL LIGHTS CONTROLED WITH CROSSWALK TRAFFIC SIGNAL LIGHTS

    NAM IN DO | European Patent Office | 2018

    Free access

    Automatic traffic signal lights

    Hurley, J.F. | Engineering Index Backfile | 1928