Research And Design Of Information Processing System In Interferometric Fiber-optic Sensor

Driven by the target of constructing "Pingan Chengshi" and promoted by the strategicapproach of "Keji Qiangjing", the security industry not only has achieved stronger growth innational economy, but also has made more and more breakthroughs on technologicalinnovation. According to the technological principle of the fiber detection sensor and thetechnological application of intelligent information processing system, this paperresearches to achieve a perimeter intrusion security system for adapting the worseningsecurity situation.Real-time system must be able to process data as signal or event comes in, andtypically make the right response without buffering delays. With less CPU system resources,the RT-Thread operating system achieves the correct processing and execution for singleevent, multiple event, synchronous or asynchronous event, and enhances the system’sreal-time processing capabilities. Remote network monitoring device based on RT-Threadcould receive zone status information timely which come from the embedded datainformation processing instrument, and then use visualization interface to tell somebodywith the superior speed of response to alarm information. With the help of LwIP protocolstack and GUI components, the RTOS provided a guarantee for the good user experienceof view interface and the reliability of network communication. This topic proposes asolution, which used on embedded devices, could implement the function of remote controland view monitor. And it is also the same as the content of research.At first, this paper studied the detection principle of fiber optic interferometer and thework of fiber optic perimeter intrusion detection system, and then explored the design offiber optic interferometer’s information processing system, especially introduced thehardware structure of the alarm information processing system.Next, with the RT-Thraed and the TCP communication protocol, the topic achieved thetask to monitor and manage the interferometric fiber-optic intrusion detection system in time.The software design for alarm information processing system is finishing the transplantationprocess for RT-Thread, and developping the device drivers on RT-Thread, implementingthe network communication and UI application design.By calling the system and the deviceinterface function, this topic develops a real-time monitoring system based on RT-ThreadOS. Because of good UI visual effects, efficient thread scheduling management mechanisms and reliable lightweight LwIP network protocol, the instrument couldimplement the management of Zone status and work parameters.After system test trials, the program of network communication and data switchingmeets the performance requirements of the system network communication.The real-timealarm information processing system completes the function to update the Zone status,change the setting of system management, query alarm records. Furthermore, this paperanalyzes and improves the reliability of network communication system about datainteraction and the performance of the user interface.The whole system upgrades integration and stability, reduces the development costs,and enhances the instrument’s performance of networking, portability and operability. Andthese new features are the same with the development direction of the intelligentinformation processing system.