Train-ground interlocking method and system for rail transit train operation control

A train-ground interlocking method for rail transit train operation control, the method being applied to a system for rail transit train operation control, wherein the system for rail transit train operation control comprises but is not limited to one of a track circuit based train control (TBTC) system, a communication based train control (CBTC) system, a train autonomous control system (TACS), a Chinese train control system (CTCS), and a European train control system (ETCS);

• and in the train-ground interlocking method, a train is taken as a subject of wayside and carborne resource management, and the train actively calculates a required resource according to a movement task “movement mission”, applies to the resources from a wayside at an appropriate time and location, uses the resource after obtaining a resource use authority, and actively releases the resource after use of the resource;
• and once the wayside allocates the resource to one of other trains, the resource cannot be reallocated without being released by the train, wherein the method comprises the following steps:
• Step 1:
• actively initiating, by a carborne controller (CC), an interlocking request for equipment or facilities to be interlocked to an information control (IC) at the wayside according to a location of the train and a movement plan;
• Step 2:
• querying, by the IC, statuses of the equipment requested according to the request of the CC, allocating, controlling and locking the equipment according to the statuses of the equipment, and returning the statuses to the CC initiating the request after locking;
• Step 3:
• once allocation and locking statuses of the equipment are given, allocated and locked equipment being incapable of changing the statuses by themselves or changing the statuses by the IC before the CC requests for release;
• Step 4:
• requesting for, by the CC, a return condition of the statuses of the equipment according to an interlocking relationship of ICs to determine whether the train may safely operate and pass through corresponding zones;
• Step 5:
• after the train passes through the corresponding zones, actively applying, by the CC, to the IC for releasing locking statuses of the corresponding equipment according to the location of the train;
• and
• Step 6:
• after the IC receives the application for release of the corresponding equipment, immediately removing, by the IC, an interlocking relationship of the equipment requested, and recovering unlocking statuses of the equipment.