Optimal control system for subway traffic flow

Abstract

The invention relates to an optimal control system for subway traffic flow. According to the system, a topological structure diagram of a rail transit network is generated according to planned operating parameters of trains; controllability and sensitivity of train flow are analyzed on the basis of the topological structure diagram; a multi-train conflict-free operating track is generated according to the planned operating parameters of each train; at each sampling moment, the advancing position of each train in the future time is predicted according to the current operating state and the historical position observation sequence of the train, an observer from continuous dynamics to discrete conflict logics of the train is established, and the continuous dynamics are mapped into conflict states expressed by discrete observation values; when the system possibly breaks the traffic control rule, hybrid dynamic behaviors of a subway traffic hybrid system are monitored, and alarm messages are provided for a control center; finally, when the alarm messages appear, the train operating track is subjected to robust bi-level programming with a self-adaptive control theoretical method, and a program result is transmitted to each train.

Description

[0001] This application is a divisional application of the invention patent application with the application number: 201510150772.8, the invention name is "Metro Traffic Flow Optimization Control Method", and the application date is: March 31, 2015. technical field [0002] The invention relates to a subway traffic flow optimization control method, in particular to a robust strategy-based double-deck subway traffic flow optimization control system and a control method thereof. Background technique [0003] With the increasing scale of large and medium-sized cities in our country, the urban traffic system is facing more and more pressure, and vigorously developing the rail transit system has become an important means to solve urban traffic congestion. The national "Eleventh Five-Year Plan" outline pointed out that large cities and urban agglomerations where conditions permit should take rail transit as a priority area of ​​development. my country is experiencing an unpreceden...

AI Technical Summary

Problems solved by technology

In complex areas with dense rail transit network and train flow, the method of still adopting train operation plan combined with train interval allocation based on subjective experience gradually shows its backwardness. Due to the influence of various random factors, it is easy to cause congestion in traffic flow tactical management and reduce the safety of traffic system operation; (2) The train scheduling work focuses on maintaining the safe interval between individual trains, and has not yet risen to the strategic management of train flow. At the macro level; (3) The train deployment process mostly depends on the subjective experience of the front-line dispatchers, and the timing of the deployment is relatively random, lacking scientific theoretical support; (4) The deployment methods used by the dispatchers seldom take into account external interference factors The impact of the train allocation scheme is poor in robustness and availability

[0004] The discussion objects of the existing literature are mostly for long-distance railway transportation, but there is still a lack of systematic design for the scientific regulation and control scheme of the urban subway transportation system under the conditions of large flow, high density and small interval operation

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