KEYWORDS: Telecommunications, Data communications, Design and modelling, Computing systems, Optical fibers, Data transmission, Data conversion, Optical communications, Data processing, Signal processing
Aiming at the characteristics of the self-designed and developed Fiber Tree Bus (FTB) terminal, such as more terminals, more interactive data and various node communication protocols, an intelligent data monitoring terminal is designed by using FPGA and QT software of host computer, a high-speed data transmission system is constructed, which is used to monitor and locate the data transmitted on the optical fiber bus. The system is divided into data transmission module, data analysis module, data transmission module receiving all data flow on fiber data bus, data analysis module caches all data, abnormal location. The test results show that the bus terminal satisfies the requirement of monitoring all terminal nodes on the self-designed FTB system, and the system runs RS422, gigabit network, CAN and other communication data. The monitoring terminal can receive all communication data, can locate the abnormal condition of each node, and the system runs smoothly.
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