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1.发明公开Method for locally controlling signal lamps for traffic applications and control system 审中-公开一种用于信号灯的交通应用程序和控制系统的分散控制过程
公开(公告)号：EP3024305A1
公开(公告)日：2016-05-25
申请号：EP14194483.5
申请日：2014-11-24
CPC分类号： H05B37/02 , B61L5/1881 , H05B39/047
摘要： A method for locally controlling at least two signal lamps (3, 3') for traffic applications, the method comprising:
i) defining a desired rms current value for at least one of the signal lamps (3, 3');
j) measuring the actual rms current value within the same signal lamp (3, 3');
k) comparing the actual rms current value with the desired rms current value and evaluating a correction current value;
l) adjusting the current to the desired rms current value by means of a control circuit (2, 2'), wherein the control circuit (2, 2') is powered by a constant voltage source,
is characterized in that steps a) through d) are carried out for each signal lamp (3, 3') separately, wherein for each signal lamp (3, 3') a pulse width modulated signal is generated according to the desired rms current values independently of the adjustment of the current values of the other signal lamps (3, 3'), and wherein the polarity of the PWM-signal is modulated. Thereby safe control of signal incandescent lamps operated with low voltage in a short distance from the signal can be realized while the durability (lifetime) of signal lamps can be increased.摘要翻译： 一种用于局部地控制至少两个信号的灯（3，3“）的方法对流量的应用，所述方法包括：i）一个限定希望的均方根为信号灯中的至少一种（3,3电流值”）; j）的测量实际有效值相同的信号灯（3,3“）内的电流值; k）的比较用所需均方根电流值的实际有效值电流值和评价的校正电流值; 升）调节电流至所需均方根电流值由控制电路（2,2手段“），worin控制电路（2,2”）通过一个恒定电压源供电，是具有以下特征DASS步骤a）通过 d）是开展对于每个信号灯（3,3“）分别，worin每个信号灯（3，3”雅丁产生到所需的均方根电流值unabhängig的电流值的调整的脉冲宽度调制信号） 另一信号的灯（3，3“），和worin PWM信号的极性被调制。 在从信号在短距离与低电压操作信号白炽灯从而安全控制，可实现同时信号灯的耐久性（寿命）可以增加。
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