摘要
介绍了一种用MSP430单片机实现光纤旁路保护器的方法。在硬件设计上采用精密光学元件和控制电路,实现了光路的无缝切换。在MSP430单片机内嵌入TCP/IP协议,借助以太网控制芯片CS8900A实现了单片机通过以太网传输数据。MCU实时监测防火墙发来的心跳信号,在防火墙出现异常时,旁路器切换光路绕过防火墙,从而保证网络通畅。
The fiber bypass protecting instrument is realized by using the MSP430 single chip microcomputer. The perfect switching of the optic pathway is realized by using some precision optic components and their control circuit. With the help of the internet controller CS8900, the system can implement data transmission though internet by embedding TCP/IP protocol into the MCU. MCU monitors the heartbeat signal which comes from the firewall. When the firewall is abnormal, the bypass can switch the optic pathway and make it bypass the firewall, which makes the network unobstructed.
出处
《微计算机信息》
2009年第11期113-115,共3页
Control & Automation
