Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts
博士 === 國防大學理工學院 === 國防科學研究所 === 99 === Statechart has been utilized as a visual formalism for the modeling of complex and interactive systems for its illuminating features on describing properties of causality, concurrency, and synchronization. A complex system can be beneficially described in this...
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ndltd-TW-099CCIT05840332017-09-15T16:26:35Z http://ndltd.ncl.edu.tw/handle/43746641011802092877 Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts 以視覺狀態圖為基礎之狀態不變量塑模工具建構法與交通號誌互動系統應用驗證 Liao, Tso-Hsien 廖作賢 博士 國防大學理工學院 國防科學研究所 99 Statechart has been utilized as a visual formalism for the modeling of complex and interactive systems for its illuminating features on describing properties of causality, concurrency, and synchronization. A complex system can be beneficially described in this statechart, because of the exponentially growing multitude of states have solution. This paper derives a State Invariant Method to look into the inherent hierarchical structure in statechart modelling. The advantage of the proposed approach is the clear presentation of statecharts modelling behavior in terms of states that cause the transitions in system dynamics. It presents the application of statechart to the modeling, design and implementation of a parallel railroad level crossing control systems. The resulting models allow one to identify and thus avoid critical scenarios in such systems by conditions and events of the model that control the phase of traffic light alternations. Moreover, we applications to Equivalent Function and urban traffic light are illustrated and thus avoid state explode in such complex system. According to our knowledge, this is the first work that employs novel modeling method of statechart to model a parallel railroad level crossing system and to solve urban traffic light using logic operate. This helps to advance the state-of-the-art technology in traffic safety related to the intersection of railroads and roadways. Huang, Yi-Sheng Hao, Shu-Sheng 黃義盛 郝樹聲 2011 學位論文 ; thesis 108 zh-TW |
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博士 === 國防大學理工學院 === 國防科學研究所 === 99 === Statechart has been utilized as a visual formalism for the modeling of complex and interactive systems for its illuminating features on describing properties of causality, concurrency, and synchronization. A complex system can be beneficially described in this statechart, because of the exponentially growing multitude of states have solution. This paper derives a State Invariant Method to look into the inherent hierarchical structure in statechart modelling. The advantage of the proposed approach is the clear presentation of statecharts modelling behavior in terms of states that cause the transitions in system dynamics. It presents the application of statechart to the modeling, design and implementation of a parallel railroad level crossing control systems. The resulting models allow one to identify and thus avoid critical scenarios in such systems by conditions and events of the model that control the phase of traffic light alternations. Moreover, we applications to Equivalent Function and urban traffic light are illustrated and thus avoid state explode in such complex system. According to our knowledge, this is the first work that employs novel modeling method of statechart to model a parallel railroad level crossing system and to solve urban traffic light using logic operate. This helps to advance the state-of-the-art technology in traffic safety related to the intersection of railroads and roadways.
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author2 |
Huang, Yi-Sheng |
author_facet |
Huang, Yi-Sheng Liao, Tso-Hsien 廖作賢 |
author |
Liao, Tso-Hsien 廖作賢 |
spellingShingle |
Liao, Tso-Hsien 廖作賢 Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts |
author_sort |
Liao, Tso-Hsien |
title |
Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts |
title_short |
Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts |
title_full |
Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts |
title_fullStr |
Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts |
title_full_unstemmed |
Construction and Verification of State Invariant Method in Modelling of Traffic Lights Interaction Systems by Using Statecharts |
title_sort |
construction and verification of state invariant method in modelling of traffic lights interaction systems by using statecharts |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/43746641011802092877 |
work_keys_str_mv |
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