Train control system-based mobile authorization calculating method

Abstract

The invention discloses a train control system-based mobile authorization calculation method. The method comprises the following steps of: reading route information of a train; determining a traversal range of the train according to the route information; initializing a terminal point of mobile authorization as a terminal point position in the traversal range; searching static obstacles in the traversal range; judging whether each of the static obstacles meets the requirement on safe operation of the train in turn; if not, setting the position of the last static obstacle in the traversal range as the terminal point of the mobile authorization; otherwise, changing the terminal point of the mobile authorization into a matched route terminal point; searching dynamic obstacles in the traversal range and judging the existence of a tracking train; if the tracking train exists, modifying the terminal point of the mobile authorization into the initial terminal of an axle section in which the train is positioned; and if no dynamic obstacle exists in the traversal range, modifying the final terminal point of the mobile authorization into the position of the last static obstacle in the traversal range. The method can improve the precision of a train tracking interval and improve the operating efficiency of the train.

Description

technical field [0001] The invention relates to the technical field of train control, in particular to a method for calculating movement authorization based on a train control system. Background technique [0002] The Communication Based Train Control System (CBTC) is the development trend of the rail transit train operation control system in the future. It introduces the communication subsystem and establishes continuous, two-way, high-speed communication between the train and the ground. The command and state of the system can be reliably exchanged between the vehicle and the ground equipment, so that the main body of the system, the CBTC ground equipment, and the controlled object train are closely connected. Based on the precise positioning of the train, the safe interval of the train is guaranteed. [0003] The specific definition of Movement Authority (MA) refers to the part of the line from the rear of the train to the obstacle at the front end. The end point of the ...

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Problems solved by technology

[0008] Although the segmented curve method has a certain degree of efficiency improvement compared with the stepped curve method, due to the high density and high passenger flow requirements of the urban rail transit operation control system, the foreign urban rail transit control system has not yet fully utilized the communication-based The advantages of the train control system, mainly have the following defects:

[0009] (1) Fuzzy positioning of trains on the line can only be performed by means of track circuits or virtual sections, and accurate train positioning cannot be achieved;

[0010] (2) The tracking interval of the train is relatively large, which leads to the failure of the movement authorization to maximize the operation efficiency;

[0011] (3) The scalability is poor. Due to the use of step curve or segmented curve tracking, if the operation efficiency needs to be improved, a large number of ground equipment needs to be added, and the upgrade cost is too high

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