The Development Of The Control System Of Multi‐channel Fiber‐optic Communication And Transmission

Marine controlled source electromagnetic detection as an important marine electromagnetic exploration methods play an extremely important role in the offshore oil,gas exploration, solid minerals and subsea engineering evaluation of the probe.The Design of multi-channel optical fiber communication transmission control system is part of marine controlled-source electromagnetic transmitter, which contains the core of the communication system design, the design of underwater auxiliary equipment, and the design of the console three parts water.This paper introduces the company to Altera’s MAX II CPLD family EPM57T100I5 core chip, multi-channel communications system board serial signal transduction fiber optic signal hardware design and firmware implements; hardware design and control circuit underwater video surveillance equipment design and the design and implementation of water deck PC console side. Articles from the program selection, system hardware components, to achieve respect the principle of software development environments and code-related functions such as system depth, detail and analysis.Coral communications system board which contains the hardware design and hardware programming, primarily is using tomultiplex multi-channel RS232 serial signal into one-channel optical fiber signal, and demultiplexone-channel optical fiber signal into multi-channel RS232 serial signal.Auxiliary equipment designed primarily refers to the design of underwater monitoring equipment design and subsea control circuit design, and water console.Up to now, it has been realized that the subject demands. The initial realization of eight multiplexed and de-multiplexing RS232 serial signal, and tested to achieve the desired goal. Auxiliary equipment, the FBI has been tested and has a maritime test, has been basically achieved its purpose applications.Issues related to technology hardware and software development mainly CPLD and microcontroller development, communication theory multiplexing and de-multiplexing, encoding and decoding, asynchronous communication, synchronous communication, C # and.Net development and so on. The subject matter covers more broader coverage, you need to master the knowledge and understanding of a large number of hardware and software, is a very practical significance and value of the subject.