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苏州地铁1号线“信号大脑”焕新升级

  • 2026-02-05 18:02:02
苏州地铁1号线“信号大脑”焕新升级

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随着苏州地铁1号线中央ATS大修工程顺利结束,7台服役13年信号系统中央ATS服务器光荣“退休”,2台新服务器以更强性能守护线路安全运行,这将有效提升设备维保质效和1号线运营准点率,为市民乘客带来更可靠、更便捷的出行体验。

服役13年
大修升级刻不容缓

ATS(列车自动监控系统)是地铁运营的“大脑中枢”,负责实时监控信号系统各类关键设备运行状态,同时整合列车自动调整、运行图管理、外部系统接口联动等功能,通过专业人机界面工作站显示器向工作人员提供清晰的设备状态可视化与精准操控支持,是保障地铁安全、高效、有序运行的核心支撑。

1号线ATS中央服务器自2012年投用以来,已连续稳定工作13年,见证了苏州地铁的快速发展。“但随着使用年限增长,设备硬件逐渐老化,软件运算能力不足的问题日益突出。”专业维护人员石翔介绍,这不仅可能影响列车准点率、降低服务质量,还让维保成本持续攀升。更棘手的是,旧设备早已停产,备件采购难上加难,维修效果也难以保证。

按照《信号系统大修规程》中核心服务器10-25年的大修周期,参照设备全寿命周期管理要求,同时结合设备监测评估结果与实际运行情况,苏州地铁于今年3月正式启动1号线中央ATS大修项目,一场旨在破解设备困境、为“老大脑”焕新赋能的专项攻坚行动就此展开。

30多个昼夜
破解多重升级难题

本次大修先后历经设备选型、软件安装、数据导入、平台搭建等约15个关键环节,自启动以来便面临多重挑战。4月至10月,两台全新服务器先后到货,技术团队利用提前搭建的专用测试平台,线下进行原7台服务器32根网线2台新服务器4根网线的更换试验,同步开展为期30天24小时设备不间断测试,全面验证新设备运行稳定性和系统兼容性。同时,利用6个夜间运营间隙的作业窗口,进行新设备接入系统后的硬件启动、系统倒切、动车测试等关键流程测试。

测试过程中,难题接踵而至。“新设备刚接入时,始终无法正常连接,我们反复检查、更换、测试网线和交换机,排除了硬件故障后,才发现问题是‘意料之外又在情理之中’。新设备采用的是千兆网络接口,而既有交换机是百兆网络,两者根本不匹配。”信号工程师陶冶回忆。随后团队紧急调配了两台不同型号的千兆交换机,连夜奋战完成网络配置测试。

一波未平一波又起,设备调度大屏测试时始终无法正常点亮。“排查了很久才发现,网络通信连接协议已经从原来的Telnet升级为SSH,相当于设备间的‘沟通语言’变了,必须重新调试适配。”经过反复调整,最终实现了大屏的正常显示。

“大脑”焕新显实效
市民出行更添保障

此次1号线ATS系统大修,实现了设备安全、运营效率、市民体验的全方位跃升。新投入的服务器运算能力提升10倍以上,为地铁安全稳定运营注入科技动力。

大修完成后,服务器卡顿引发的系列问题将迎刃而解:车站PIS屏卡顿故障预计降低90%以上,PIS屏到站时间预测误差将缩小至±30秒内,列车自动进路触发成功率提升至97%以上,让市民候车更安心、乘车更顺畅。

此次大修升级后,新系统配套的服务器具备运算能力强、系统冗余性高、传输速度快等特点,两台核心服务器和千兆交换机均在产,备件采集便捷。新服务器高性能计算模块、支持热插拔硬盘备份阵列、多卡槽内存扩展接口、冗余电源单元和散热模块等核心设备,将实现常态化采购供应。届时,将彻底告别原先部分老旧部件“无件可换”的维保困境,故障平均处置时间预计缩短5.5小时,筑牢地铁安全运营的坚实防线。

1号线ATS大修的圆满完成,为后续线网升级改造积累了可复制、可推广的宝贵经验。未来,苏州地铁将持续以科技创新为引擎不断打磨设备运营与服务品质,为市民提供更安全、便捷、舒适的出行体验。

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  1. CONNECT:[ UseTime:0.000567s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000561s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.002469s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000328s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000648s ]
  6. SELECT * FROM `set` [ RunTime:0.000376s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000601s ]
  8. SELECT * FROM `article` WHERE `id` = 477568 LIMIT 1 [ RunTime:0.001429s ]
  9. UPDATE `article` SET `lasttime` = 1770292758 WHERE `id` = 477568 [ RunTime:0.000730s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000248s ]
  11. SELECT * FROM `article` WHERE `id` < 477568 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.003517s ]
  12. SELECT * FROM `article` WHERE `id` > 477568 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001230s ]
  13. SELECT * FROM `article` WHERE `id` < 477568 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.015897s ]
  14. SELECT * FROM `article` WHERE `id` < 477568 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.016735s ]
  15. SELECT * FROM `article` WHERE `id` < 477568 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.020117s ]
0.210435s