An Adjustable Voltage Signal Filament Conversion Alarm System

Abstract:

A new adjustable voltage signal filament conversion alarm system is proposed which based on the traditional conversion monitoring system of train signal filament. This system adopts the embedded DSP processor monitoring the state of filament and uses the DSP to control PWM (Pulse-Width Modulation) duty cycle for preheating the filament，then gradually lit it. It avoids the breakdown of the filament break. The power line carrier technology is used for alarming signal transmission. This system is more practical than the traditional, which shortens filament switch time and improves the alarm accuracy.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 699-703
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.699
• Online since: February 2012
• Authors: Bao Feng Zhang, Jin Feng Yang, Jun Chao Zhu
• Keywords: Digital Signal Processor (DSP), Filament Transfer, PWM, Signal

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