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The Design of Switch Unit in the Full-Electronic Computer Inter-Locking System

Author: WanLin
Tutor: GuoJin
School: Southwest Jiaotong University
Course: Traffic Information Engineering \u0026 Control
Keywords: Computer Interlocking Fully electronic Failure - Security Complex Programmable Logic Devices Turnout control unit
CLC: U284.3
Type: Master's thesis
Year: 2005
Downloads: 362
Quote: 2
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Abstract


Currently in the field of railway signaling control , the most widely used is the 6502 Electric and as an executive agency to relay computer interlocking system . Full computer interlocking system is started late, but the use of intelligent execution unit is the future direction of development of computer-based interlocking system . This interlocking system with full computer control unit for the study turnout . Design uses a dual microcontroller (MCU) control program, which in two 8-bit embedded micro- controller and two complex programmable logic device (CPLD) as the core of the interface circuit through a number of control systems. This paper presents the miniaturization of power electronic devices and safety relays complementary combination of methods, effective solution to power electronic devices as well as the safe side after the breakdown backward switching power currents will cause the relay arcing problems, ensure that the system safety and service life. In this paper, the communication control unit turnout for a more in-depth research, design of CAN bus controller and microcontroller interface circuit and dual interface circuit between the microcontroller , while the completion of the corresponding bus communication procedures and serial communication program . Additionally, this article from a theoretical point of view, a fully electronic computing turnout control unit reliability and failure - security. Final details of the design to address the unit effective measures taken by the interference .

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CLC: > Transportation > Rail transport > Railway communication,signal > Railway signal > Interlock ( station signal )
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