研究目的: 要在铁路局信号综合实验实训基地实现4套联锁共享控制1~4组道岔功能。联锁与室外道岔切换并安全控制基础上,减少室外和室内设备重复建设,最大化减少建设场地占用,节约建设成本。
研究结论: (1)在联锁和道岔接口电路之间设计切换电路,可实现多套联锁对同一组道岔的共享控制;(2)设计4个切换按钮分别对应每套联锁,可实现一键切换;(3)设计了表示电路指明当前接入的是哪一套联锁;(4)将切换电路所有继电器落下时设计为接通默认联锁,可保证切换电路故障时至少有一套联锁能正常控制道岔;(5)切换电路充分考虑了多套联锁之间的物理互斥,保证同一时间只能有一套联锁控制室外道岔;(6)设计了道岔切换同步检查电路,可检查切换后道岔控制和道岔表示是否受同一套联锁控制;(7)在长沙实验实训基地运用表明,该电路设计满足信号综合实验实训基地实现多联锁共享道岔控制切换需要。
Abstract
Research purposes: To realize 4 sets of interlocking shared control of 1~4 sets of switches in the signal comprehensive experiment and training base of railway bureau. On the basis of switching between interlock and outdoor turnout and safe control, it can reduce repeated construction of outdoor and indoor equipment, minimize the occupation of construction site, and save construction cost.
Research conclusions: (1) A switching circuit is designed between interlock and switch interface circuit to realize the shared control of multiple interlocks on the same set of switches. (2) Four switch buttons are designed for each set of interlocks to achieve one-click switch. (3) The circuit is designed to indicate which set of interlock is currently connected. (4) All relays of the switching circuit are designed to connect the default interlock when they fall down, so as to ensure that at least one interlock can control the switch normally when the switching circuit fails. (5) The switching circuit fully considers the physical mutual exclusion between multiple sets of interlocks, so as to ensure that only one set of interlock control outdoor switch at the same time. (6) A switch synchronous inspection circuit is designed to check whether the switch control and switch representation are controlled by the same set of interlocks. (7) The application in Changsha experiment and training base shows that the circuit design meets the need of realizing multi-interlock shared switch control in signal comprehensive experimental and training base.
关键词
铁道信号 /
信号联锁 /
道岔 /
控制切换 /
电路设计
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Key words
railway signal /
signal interlocking /
switch /
control switch /
circuit design
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中图分类号：
U28
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参考文献
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