基于元胞自动机的列车控制系统移动授权
冉梦强1滕昌敏2
Movement Authorization for Train Control Systems Based on Cellular Automata
RAN Mengqiang1TENG Changmin2
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作者信息:1.卡斯柯信号(成都)有限公司, 610502, 成都
2.卡斯柯信号有限公司, 200436, 上海
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Affiliation:1.CASCO Signal (Chengdu) Co., 610502, Chengdu, China
2.CASCO Signal Co., Ltd., 200436, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.20230851
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中图分类号/CLCN:U284.48
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栏目/Col:通信信号
摘要:
［目的］随着城市轨道交通的高速发展，日益剧增的客运量对行车间隔提出了更高的要求，为优化信息传输过程、缩短行车间隔、满足更高的运营需求，有必要分析CBTC(基于通信的列车控制)系统在计算移动授权时所采用的车-地通信方式的局限性，研究新的优化移动授权方法。［方法］介绍了移动授权的定义及其计算原理，并分析了CBTC系统与TACS（列车自主运行系统）的区别；提出了基于元胞自动机的列车间隔控制方法，建立了考虑相对速度的移动授权计算模型，从模型层面优化移动授权。以深圳地铁3号线梨园站站后交替折返为例，分别在CBTC系统和TACS下，采用MATLAB软件对所提移动授权优化模型进行验证。［结果及结论］当道岔限速为35 km/h时， TACS的站后单线折返时间间隔比CBTC系统的站后单线折返时间间隔缩短了34 s，显著提高了行车效率。
Abstracts:
［Objective］ With the high-speed development of urban rail transit, the drastic increase of passenger volume puts forward higher requirements on the train departure interval. In order to optimize the information transmission process, shorten the train departure interval and meet the higher operational needs, it is necessary to analyze the limitations of the adopted vehicle-wayside communication mode in CBTC (communication-based train control) system when calculating movement authorization, and study a new optimized movement authority method. ［Method］ The definition of movement authorization and its calculation principles are introduced, and the differences between CBTC system and TACS (train autonomous control system) are analyzed. A train interval control method based on cellular automata is proposed, and a movement authorization calculation model considering relative speed is constructed, to optimize movement authorization from the model level. Taking the alternate post-station turn-back at Shenzhen Metro Line 3 Liyuan Station as an example, the movement authorization optimization model proposed from using MATLAB software is verified under both CBTC and TACS systems. ［Result & Conclusion］ When the turnout speed limit is 35 km/h, the post-station single-track turn-back time interval under TACS is 34 s shorter than that under CBTC system, significantly improving train departure efficiency.
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