The Developing And Design Of Transform Testing System Which Applied In Railway

Considering it's own academically significance and marketable viture, we decide to choose <> to be my studying item. This system is designed for testing some parameters of transforms used in railway.Some basic knowledge has been integrated into this task: above all, the elements and performance of all kinds of transform testing devices have been mastered with our device's specific applied needs; based it, some advanced testing methods are reflected, and parameters, such as stability and precision, also be analyzed and solved with mathematics and experiments; The security of high voltage testing and it's impactive disturb is considered; multichannel sampling has it's own difference; the supplied power is instability and this system can measure frequency during wide range. We also pay attention to the safeguard on manipulator and the device; further development also be considered.Some primary knowledge involved in this design includes: on the aspect of hardware, MCU(80c196) is control center, the testing system can be called intelligence instrument only with it . Due to the quantity of testing data is great and these data be updated frequently ,we choose programmable chip which acts as MCU peripherals to be used for extending 80C196's I/O ports and storing data . Some functions required in MCU is further realized with CPLD(such as operating on ADC,LCD and Relay); on the side of software, series ports communication between the computer and MCU is first exerted, the data sometimes has to be stored in PSD and computer; on the computer, we have adopted VC++6.0 language to achieve judgement ,statistic and classify on the transform data, print with list control based on dialog box; in order to carry through AC sampling and multi-cycle synchronous frequency measurement, the language of C196 and VHDL have been introduced.What I benefit from this project is that I have improved the ability of experiment in the round; meanwhile, the project is a beginning for me to process designing for inspecting and controlling some kinds of manufacture system.