【摘要】 提出了一种数据采集系统,它可以在16路密集波分复用(DWDM)系统中对不同波长光信号功率进行实时监控。首先,各个PIN管将光功率信号转化成电信号。然后,采用Microchip公司的PIC16F877单片机对16路模拟电信号数据进行采集。接着,单片机将光功率采样数据转化成对应的光功率数据,并将其数据与预先设定的报警阈值进行比较,得出相应的报警级别。最后,将包含报警级别的实时功率数据送到LCD显示。实际应用表明:实时数据的刷新率可达1tims/s,光功率的动态检测范围为-70～10dBm。更多还原

【Abstract】 A data procession system,that can supervise the power of different optical wavelength signal in 16 route DWDM system,was presented.First,each PIN converts the optical power signal into eletronic signal,second,the PIC16F877 of Microchip collects the 16 analog electronic signals,then it converts the sample data into power data.Then the data will be compared with the alarming value,that has been set before collection.At the end,the power data including the alarm information will be sent to LCD for display.The application indicates that the realtime data flash ratio can be once in second and it can detect the optical power dynamic range over -70 dBm to 10 dBm.更多还原