Crossing control method and system for urban rail transit

A technology of urban rail transit and control method, which is applied in the field of urban rail transit crossing control method and system, and can solve problems such as the difficulty in automatically and efficiently allocating level crossing resources, the large impact on road traffic, and the increase in project investment costs , to reduce costs

Active Publication Date: 2015-10-07
CASCO SIGNAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This scheme has relatively high requirements on the length of the approaching section (an additional track section needs to be set up near the crossing), which increases the project investment cost, and when the rail t...

Method used

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  • Crossing control method and system for urban rail transit
  • Crossing control method and system for urban rail transit
  • Crossing control method and system for urban rail transit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0046] The present invention is based on the relative priority of rail transit trains, and simultaneously considers the characteristics of rail transit and road traffic. Under normal circumstances, interactive traffic can meet the requirements of operational safety and operational indicators, optimize the resource allocation of crossings in road traffic, and fully combine The respective characteristics of rail transit and highway traffic systems make full use of the information interaction control of rail transit train control system and crossing control system, supplemented by accurate scene analysis and time allocation algorithm, while effectively ensuring the safety of rail transit trains, effectively reducing crossing Blockage time for road traffic.

[0047] 1) The control flow of this method is as follows figure 1 As shown, the specific steps include:

[0048] 1) When the train approaches the crossing, the ATS subsystem automatically sends an instruction to set the route...

specific Embodiment

[0072] For example, in the uplink direction of the crossing between NS8 and NS7 in the Ethiopian LRT project, the route is as follows Figure 5 Shown:

[0073] The crossing signal system is to realize the relative priority of rail transit trains passing at level crossings. According to the busyness of the municipal traffic at the crossing and the actual situation on the spot, the control equipment of each crossing needs to set a minimum opening time (tentatively set to 60s in the simulation). When the train approaches the crossing, if the opening of the crossing does not meet the minimum opening time, the crossing control equipment will control the crossing protection signal to not open through the CI subsystem, and the rail transit train will not be allowed to pass through the crossing until the crossing is opened to meet the minimum opening time. Process the train approaching forecast information, close the crossing signal (road side), prompt to drop the crossing railing, a...

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PUM

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Abstract

The invention relates to a crossing control method for an urban rail transit. The method comprises the steps of 1) when a train is close to a crossing, an ATS subsystem sending a setup instruction of entering a path through the crossing to a CI subsystem; 2) after the crossing occupied by the train is judged to be close to a section and the condition that a delay timer counts to zero, sending a train approaching message; 3) closing a road annunciator, meanwhile prompting a crossing terminal to close a rail, and lowering the rail after the crossing terminal confirms that the crossing is clear; 4) lowering the rail and sending a closing message to the CI subsystem; 5) automatically starting a crossing protection annunciator; 6) authorizing the train to pass the crossing after an opening message from the crossing protection annunciator; 7) after the train passes the crossing, removing the train approaching message and sending to the crossing control subsystem; and 8) lifting the rail. Compared with the prior art, the crossing control method for the urban rail transit has the advantages of precisely locating the position of the approaching triggering informing point, optimizing the crossing occupation time of the rail transit train, automatically managing the crossing informing messages and the like.

Description

technical field [0001] The invention relates to urban rail transit, in particular to a crossing control method and system for urban rail transit. Background technique [0002] Urban rail transit (Rail Transit) generally adopts a fully enclosed method, which has the characteristics of large capacity, fast speed, safety, and punctuality. However, some cities are limited by geographical environment and construction funds, and some areas of urban rail lines will cross roads. In this case, there is a level crossing. A level crossing is a plane intersection of two transportation systems with different dynamics, different braking distances, and different traffic rules. It is the same coordinate point on a plane. For resource conflict occupation, different time slots can be assigned to the two transportation systems during specific implementation, but the division of time slots is not a simple division process. Since the two transportation systems of road and rail are quite differe...

Claims

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Application Information

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IPC IPC(8): B61L29/22
Inventor 胡荣华汪小勇
Owner CASCO SIGNAL
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