The design and implementation of PHS cell station signal reconstruction device based on ML7338 is introduced,the hardware and software design and compiling are given,and the software flow is explained in detail.

MARINI Asphalt Recycling Machinery;

Based on analyzing the status of hall and offset voltage,a completely new and comparatively simple hall signal regeneration circuit was brought forward.

Discussion on integrated test of electric features of signal equipment;

This paper expounds the role of station s access supervision system played when there is the trouble with station s signal equipment, and introduces the components of the system and the design of its software and hardware.

Aimed at Chinese railway signal equipments fault characteristics and the fault diagnose method which was adoptedat present, the general architecture of Railway Signal Fault Diagnose Expert System was analyzed, the idea that using faultdiagnose method in different level to set up and develop Railway Signal Fault Diagnose Expert System was proposed.

According to the characteristics of thunder and lightning and the harms that may be done by thunder & lightning to railway signals equipment,this paper analyses and illustrates the types of lightning proof of railway signals equipment,and puts forward special anti-thunder protection actions in terms of the ways that the railway signals equipments may be damaged by thunder and lightning.