Switch control method for rail transit signal system, and apparatus for method

Patent metadata

Field	Value
Publication number	US-12570337-B2
Application number	US-202118003494-A
Country	US
Kind code	B2
Filing date	Sep 22, 2021
Priority date	Jun 28, 2021
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

The present disclosure relates to a switch control method for a rail transit signal system, and an apparatus for the method. When a switch control command of the signal system fails or the signal system confirms agreement with local switch control, the method is configured for performing maintenance operation on a switch via the local switch control apparatus. Compared to the prior art, the present disclosure has the advantages of meeting the requirement of the local switch control, ensuring the safety of a maintenance person and operation, etc.

First claim

The invention claimed is:

1 . A switch control method for a rail transit signal system, the method being configured for performing maintenance operation on a switch via a local switch control apparatus when a switch control command of the signal system fails or the signal system confirms agreement with local switch control,
wherein the method comprises: Step 1: a request stage: when preparing for switch maintenance operation, after a wayside safety confirmation person, a switch maintenance person, and an operator confirm the maintenance operation, pressing, by the wayside safety confirmation person, a local control request button on a switch confirmation control panel; Step 2: a confirmation stage: when the signal system works normally, receiving, by the signal system, a local control request signal; and when the signal system has established a movement authority for a train to pass through the switch, ensuring that the train returns to be outside the switch zone after collecting the status, sending a switching confirmation signal when the signal system confirms that there is no train occupying or passing through the switch, and immediately turning on a switching agreement indication lamp when a switching apparatus receives the switching confirmation signal from the signal system; and Step 3: an execution stage: when the switch maintenance person confirms that the “switching agreement indication lamp” positioned on a local switch control panel is turned on, executing operation of a “changeover switch”, and immediately turning on a “local control mode indication lamp”, such that a switching process of the local switch control is completed, and the switch maintenance person may start the switch maintenance operation.

2 . The switch control method for a rail transit signal system according to claim 1 , wherein in the Step 2, the confirmation stage further comprises: when the signal system cannot work normally and the wayside safety confirmation person confirms that there is no train in and entering the switch zone, pressing a “bypass button” on the switch confirmation control panel, and immediately turning on the switching agreement indication lamp when the switching apparatus receives the switching confirmation signal from the signal system.

3 . The switch control method for a rail transit signal system according to claim 1 , wherein the method further comprises a step of disabling local switch control, specifically comprising:
a) pressing, by the switch maintenance person, a local control release button on the local switch control panel, and operating the “changeover switch” on the local switch control panel; b) turning on a “centralized control mode indication lamp” on the local switch control panel; and c) disabling a local switch control mode.

4 . An apparatus for a switch control method for a rail transit signal system, the method being configured for performing maintenance operation on a switch via a local switch control apparatus when a switch control command of the signal system fails or the signal system confirms agreement with local switch control,
the apparatus comprising a local switch control panel and a switch confirmation control panel, wherein the local switch control panel comprises a centralized control mode indication lamp, a local control mode indication lamp, a local control release button, a changeover switch, a switch normal status indication lamp, a switch reverse status indication lamp, a switch normal operation button, and a switch reverse operation button, wherein a switch confirmation control panel comprises a bypass button, a switching agreement indication lamp, and a local control request button, wherein the local control request button is a non-stick button, after confirming operational procedures of local switch control with a dispatcher, a maintenance person presses the local control request button and the operation changeover switch, and after the signal system performs confirmation or the maintenance person presses the bypass button, switch control is transferred to local control, and the local control mode indication lamp, the switch normal status indication lamp, and the switch reverse status indication lamp are simultaneously turned on; and when the maintenance person completes maintenance operation of a switch machine and operates the “changeover switch” to be in a centralized control mode and presses the “local control release button” on the wayside local switch control panel, the centralized control mode indication lamp is automatically turned on, and the local switch control mode indication lamp and a switch position indication lamp are automatically turned off.

5 . The apparatus according to claim 4 , wherein the apparatus is flexibly arranged outdoors or indoors according to a project requirement.

6 . The apparatus according to claim 4 , wherein the apparatus is applicable to a train autonomous control system (TACS), a China train control system (CTCS), a European train control system (ETCS), a positive train control (PTC) system, an incremental train control system (ITCS), and a communication based train control (CBTC) system.

Assignees

• Casco Signal Ltd

Inventors

• Pan Liang
• Wang Xiaoyong
• Xu Haigui
• Xing Yanyang
• Lu Yiran
• Chen Shaowen
• Hong Lingjiao

Classifications

• B61L21/04

  Electrical locking and release of the route; Electrical repeat locks · CPC title

• B61L19/16

  Details · CPC title

• B61L7/06

  using electrical transmission · CPC title

• B61L2027/202

  using European Train Control System [ETCS] · CPC title

• B61L2027/204

  using Communication-based Train Control [CBTC] · CPC title