摘要
设计了一种基于CAN总线通信方式来实现光纤网络光功率测量的系统。介绍了系统的主从式硬件结构和软件功能。从节点采用InGaAsPIN光电二极管进行光电转换,用对数放大器进行电流电压转换,并进行了相应的滤波处理。主节点与从节点之间基于CAN总线进行数据通信,实现了光信号功率的在线监测。
A system based on CAN bus communication which can automatically monitor the states of optical network was designed. The master-slave mode system ,the design methods of the hardware and software, were elaborated. The slave node utilized an InGaAs PIN photodiode to convert optical power into current . A log amplifier was applied to convert current into voltage. After filtering, the voltage signal was analyzed and accounted in ATmega64L. The master node accessed the data from the bus ,analysed it, and realized the online optical power monitoring.
出处
《微计算机信息》
2012年第6期69-70,162,共3页
Control & Automation
关键词
CAN
光功率计
对数放大器
监测
CAN
optical power meter
log amplifier
monitoring
