Portable Simulate Signal Generator For Train

This text introduced to apply to go the appropriation material of the car safety monitor system in the railroad at gearing, support, fix apply then the hold type kit instrument-railroad vehicle signal to imitate occurrence machine to develop. The point discuss that be apart from to the railroad train stalk, the emulation method of the stalk, the speed signal and carry out principle. The article passes the design way of thinking of the introduction instrument and the design process and the work principle of each unit hardware electric circuit, the point discussed a single slice machine, liquid crystal display, the CPLD chip, the DC-DC transformation machine, the GSM correspondence mold piece, the short distance wireless correspondence the electric circuit wait a main key spare part in the applied method in the electric circuit and experience. Explained a single slice machine software, the CPLD plait distance, GSM plait the distance and single slice machine wireless correspondence the mold piece software design process. Introduce to aim at instrument small scaled the method of[with] problem turned the work do, and resolved to grind and done not meet in the process, and give the experiment result of the kind machine. Because the railroad across the jump type development progress, the application numeral turns advanced techniques, such as technique, calculator technique and the modern correspondence technique...etc., will bring a huge social and economic performance for the development of the economy, also bringing more extensive applied realm.