Train operation control system and method based on train-ground coordination

Abstract

A train operation control system and method based on train-ground coordination are provided. The system includes a dispatching center server, a resource management unit (RMU) for ground train control equipment, and on-board train control equipment (CC), wherein the dispatching center server is connected via communication to the on-board CC, and the on-board CC is connected via communication to the RMU for the ground train control equipment; and the RMU for the ground train control equipment and the on-board CC coordinatively complete resource management and implement train operation control, wherein the resource management is divided into two levels, at a first level, the RMU is responsible for performing the resource management in the unit of section, and at a second level, a preceding train and a succeeding train interact with each other via direct train-to-train communication, such that finer resource sharing in a section is achieved between the trains.

Claims

1. A train operation control system based on train-ground coordination, comprising a dispatching center server, a resource management unit RMU for ground train control equipment, and an on-board train control equipment CC, wherein the dispatching center server is connected via communication to the on-board CC, and the on-board CC is connected via communication to the RMU for the ground train control equipment; and the RMU for the ground train control equipment and the on-board CC coordinatively complete resource management and implement train operation control, wherein the resource management is divided into two levels, wherein at a first level, the RMU is responsible for performing the resource management in an unit of section, and at a second level, a preceding train and a succeeding train interact with each other via a direct train-to-train communication, such that finer resource sharing in a section is achieved between the trains, wherein the on-board CC is responsible for applying, using, and releasing line resources and turnout resources, for locking and unlocking turnouts, and for performing train-to-train communication with the preceding and succeeding trains to implement resource sharing, wherein the resource sharing between the on-board CC and the preceding and succeeding trains is completed by fine management of the line resources and the turnout resources, wherein with respect to section resources and the turnout resources, the preceding and succeeding trains directly perform position information interaction and mutual negotiation to subdivide an application range of the resources.

2. The train operation control system based on train-ground coordination according to claim 1, wherein the dispatching center server is responsible for supervising and controlling train operation and has functions of train operation tracking, alarming and event reporting, operation plan adjusting, and operation controlling.

3. The train operation control system based on train-ground coordination according to claim 1, wherein the RMU for the ground train control equipment is responsible for allocating and recovering the line resources and the turnout resources and for turnout locking and unlocking management.

4. The train operation control system based on train-ground coordination according to claim 3, wherein the line resources are in the unit of track circuit or virtual track circuit.

5. The train operation control system based on train-ground coordination according to claim 1, wherein the turnout resources are specifically subdivided as follows: dividing resources of a turnout P1 into a P1-pre-turnout zone, a P1-turnout movable zone, a P1-forward side defense zone, a P1-reverse side defense zone, a P1-forward post-turnout zone, and a P1-reverse post-turnout zone.

6. The train operation control system based on train-ground coordination according to claim 5, wherein the subdivided resources are specifically managed as follows: a) each subdivided zone is the smallest unit for train occupancy and clearance, can be occupied by one train each time, and can be occupied by another train after train clearance; b) the P1-forward side defense zone and the P1-reverse side defense zone are mutually exclusive in terms of occupancy, and only one of the two can be occupied each time; and c) the P1-turnout movable zone can be unlocked by a train originally applying for locking and can be applied and operated by an additional train, as long as the P1-turnout movable zone is not occupied.

7. A method for controlling the train operation control system based on train-ground coordination according to claim 1, comprising the following steps: 1) First, managing, by the RMU for the ground train control equipment, the line resources and the turnout resources by section; 2) Then, performing communication between on-board CC of adjacent trains, and performing fine management on resources in a section to implement resource sharing between the trains; and 3) Finally, actively performing train control by the on-board CC according to the allocated resources to fulfill a train safety protection function and an automatic train driving function.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic diagram of an overall architecture of a train operation control system based on train-ground coordination according to the present invention;

(2) FIG. 2 is a schematic diagram of subdivided resources of a turnout P1 according to the present invention; and

(3) FIG. 3 is a schematic diagram showing operation tracking of two trains according to the present invention.

DESCRIPTION OF THE EMBODIMENTS

(4) The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are some instead of all of the embodiments of the present invention. Based on the embodiments in the present invention, every other embodiment obtained by those of ordinary skills in the art without creative labor shall fall within the protection scope of the present invention.

(5) The train operation control system based on train-ground coordination includes the followings.

(6) 1. In this train operation control system, a resource management unit (RMU) for ground train control equipment and on-board train control equipment (CC) coordinatively complete resource management and implement train operation control. The resource management is divided into two levels. At a first level, the RMU is responsible for performing the resource management in the unit of section, and at a second level, a preceding train and a succeeding train interact with each other via direct train-to-train communication, such that finer resource sharing in a section is achieved between the trains.

(7) 2. The RMU is responsible for allocating and recovering line resources (which may be in the unit of track circuit or virtual track circuit) and turnout resources, and also for turnout locking and unlocking management.

(8) The CC is responsible for applying, using, and releasing the line resources and the turnout resources, for locking and unlocking turnouts, and for performing train-to-train communication with the preceding and succeeding trains to implement resource sharing.

(9) 4. The resource sharing between the CC and the preceding and succeeding trains is completed by fine management of the lien resources and the turnout resources. With respect to section resources and the turnout resources, the preceding and succeeding trains directly perform position information interaction and mutual negotiation to subdivide an application range of the resources.

(10) 5. A train control method based on train-ground coordination is applicable to railway or urban rail transit, showing universality.

Description of the Embodiments

(11) The structure and interface information of the train operation control system based on train-ground coordination are shown in FIG. 1. The system includes a dispatching center, a resource management unit (RMU) for ground train control equipment, and on-board train control equipment (CC). The dispatching center is responsible for supervising and controlling train operation, and has functions such as train operation tracking, alarming and event reporting, operation plan adjusting, and operation controlling. The RMU is responsible for allocating and recovering line resources and turnout resources and for acquiring information from and driving trackside equipment. The CC is responsible for requesting and releasing the line resources according to a plan, communicating with adjacent trains for resource sharing, and actively performing train control according to the allocated resources to fulfill a train safety protection function and an automatic train driving function.

(12) In the train operation control system based on grain-ground coordination, the management of turnout resources is fined (as shown in FIG. 2). The resources of a turnout P1 into a P1-pre-turnout zone, a P1-turnout movable zone, a P1-forward side defense zone, a P1-reverse side defense zone, a P1-forward post-turnout zone, and a P1-reverse post-turnout zone. The subdivided resources are management under the following rules: 1) each subdivided zone is the smallest unit for train occupancy and clearance, can be occupied by one train each time, and can be occupied by another train after train clearance; 2) the P1-forward side defense zone and the P1-reverse side defense zone are mutually exclusive in terms of occupancy, and only one of the two can be occupied each time; and 3) the P1-turnout movable zone can be unlocked by a train originally applying for locking and can be applied and operated by an additional train, as long as the P1-turnout movable zone is not occupied.

(13) Referring to FIG. 3, it shows a practical application example, in which a train 1 reaches a trackway 3 via the turnout P1 and stops, a train 2 passes a trackway I via the turnout P1, and a following distance between the two trains is short, possibly leading to moving block. The instantaneous situation in the figure is as follows: the train 1 has crossed the P1-reverse side defense zone and is heading to stop at the trackway 3; and the train 2 occupies track circuits J1 and J2, the turnout P1 has been locked at a normal position, a receiving route of the train 2 has been prepared, and the train 2 is planned to pass via the trackway I. In FIG. 3, the resources of interest mainly include: G-J1, G-J2, G-P1, G-I and G-3.

(14) Table 1 shows the examples of resource management in respective steps during the operation of the trains 1 and 2. The main situation is as follows.

(15) In step 1, the train 1 is located on the track G-J2, with the turnout P1 locked at a reverse position and a receiving signal X cleared; and the train 2 approaches a track G-J1.

(16) In step 2, the train 1 occupies G-J2 and G-P1; and the train 2 occupies the track G-J1.

(17) In step 3, the train 1 is cleared from the track G-J2 and occupies G-P1 to cross the movable zone of the turnout P1; and the train 2 occupies the track circuits G-J1 and G-J2.

(18) In step 4, the train 1 occupies G-P1 to cross the reverse side defense region of the turnout P1; and the train 2 occupies G-J1 and G-J2, with its receiving signal X cleared.

(19) In step 5, the train 1 occupies G-3; and the train 2 occupies G-J2 and G-P1, as well as the normal position of the turnout P1.

(20) The resource management in step 4 (as shown in FIG. 3 correspondingly) is described as follows.

(21) A. Resource Management at RMU

(22) The RMU maintains the allocation of the resources G-P1 and G-3 to on-board CC 1, and maintains the allocation of G-J1 and G-J2 to the on-board CC 2, and the on-board CC 1 maintains the allowance of sharing G-P1 with the on-board CC 2; G-P1 is occupied by the on-board CC 1, and G-J1 and G-J2 are occupied by the on-board CC 2; and the turnout P1 is locked at the normal position by the on-board CC 2.

(23) B. Resource Management at On-Board CC 1

(24) The on-board CC 1 is cleared from the P1-reverse side defense zone, and occupies the P1-reverse post-turnout zone; the on-board CC 1 releases the P1-reverse side defense zone; and the on-board CC 1 allows sharing the track G-P1 with the on-board CC 2.

(25) C. Resource Management at On-Board CC 2

(26) The on-board CC 2 obtains the allocation of and occupies G-J1 and G-J2, and obtains the allowance of sharing G-P1 from the on-board CC 1; and the turnout P1 is locked to the normal position by the RMU.

(27) In the case of step 4, the resource management at the RMU, on-board CC 1, and on-board CC 2 is shown Table 2, Table 3, and Table 4.

(28) TABLE-US-00001 TABLE 1 System resource management Resource Train position Resource management Resource management at on- management at description at RMU board CC 1 on-board CC 2 Step The train 1 is The RMU maintains the The on-board CC 1 obtains the The on-board CC 2 1 located on the allocation of the resources G-J2, allocation of G-J2 from the RMU obtains the track G-J2, G-P1, and G-3 to the on-board and occupies the G-J2; the on- allocation of the with the turnout CC 1, with G-J2 occupied by the board CC 1 obtains the track G-J1 from the P1 locked at on-board CC 1; the turnout P1 is allocation of the turnout P1-pre- RMU the reverse locked by the on-board CC 1 at turnout zone, the P1-turnout position and a the reverse position; and the movable zone, the P1-reverse receiving RMU maintains the allocation of side defense zone, and the P1- signal X G-J1 to the on-board CC 2 reverse post-turnout zone; the cleared; and turnout P1 is locked to the the train 2 reverse position by means of approaches the RMU; and the on-board CC the track G-J1 1 obtains the allocation of G-3 Step The train 1 The RMU maintains the The on-board CC 1 obtains the The on-board CC 2 2 occupies G-J2 allocation of the resources G-J2, allocation of and occupies G-J2 obtains the and G-P1; and G-P1, and G-3 to the on-board and the pre-turnout zone of the allocation of and the train 2 CC 1, and maintains the turnout P1, and obtains the occupies the track occupies the allocation of G-J1 to the on-board allocation of the P1-turnout G-J1, and obtains track G-J1 CC 2; and the on-board CC 1 movable zone, the P1-reverse the allowance of allows sharing G-J2 with the on- side defense zone, the P1- sharing teh track board CC 2; G-J2 and G-P1 are reverse post-turnout zone, and G-J2 with the on- occupied by the on-board CC 1, G-3; the turnout P1 is locked at board CC 1 and G-J1 is occupied by the on- the reverse position by by board CC 2; and the turnout P1 is means of the RMU; and the on- locked at the reverse position by board CC 1 allows the sharing the on-board CC 1 of G-J2 with the on-board CC 2 Step The train 1 is The RMU maintains the The on-board CC 1 is cleared The on-board CC 2 3 cleared from allocation of the resources G-P1 from G-J2, then from the pre- obtains the the track G-J2 and G-3 to the on-board CC 1, turnout zone of the turnout P1 allocation of and and occupies and maintains the allocation of G- and the P1-turnout movable occupies the G-P1 to cross J1 to the on-board CC 2; G-J2 is zone, occupies the P1-reverse tracks G-J1 and G- the movable handed over to the on-board CC side defense zone and the P1- J2, and obtains the zone of the 2 from the on-board CC 1; the on- reverse post-turnout zone, and allowance of turnout P1; and board CC 1 allows sharing G-P1 obtains the allocation of G-3; sharing the track the train 2 with the on-board CC 2; G-P1 is the on-board CC 1 unlocks the G-P1 from the on- occupies the occupied by the on-board CC 1, turnout P1 by means of the board CC 1; and track circuits and G-J1 and G-J2 are occupied RMU and releases the turnout the on-board CC1 G-J1 and G-J2 by the on-board CC 2; and the movable zone; and the on- shifts the turnout turnout P1 is at the reverse board CC 1 allows sharing the P1 to the normal position without being locked track G-P1 with the on-board position by means CC 2 of the RMU Step The train 1 The RMU maintains the The on-board CC 1 is cleared The on-board CC 2 4 occupies G-P1 allocation of the resources G-P1 from the P1-reverse side obtains the to cross the and G-3 to the on-board CC 1, defense zone, occupies the P1- allocation of and reverse side and maintains the allocation of G- reverse post-turnout zone, and occupies G-J1 and defense region J1 and G-J2 to the on-board CC obtains the allocation of G-3; G-J2, and obtains of the turnout 2, and the on-board CC 1 the on-board CC 1 releases the the allowance of P1; and the maintains the allowance of P1-reverse side defense zone; sharing G-P1 from train 2 sharing G-P1 with the on-board and the on-board CC 1 allows the on-board CC 1; occupies G-J1 CC 2; G-P1 is occupied by the on- sharing the track G-P1 with the and the turnout P1 and G-J2, with board CC 1, and G-J1 and G-J2 on-board CC 2 is locked to the its receiving are occupied by the on-board CC normal position by signal X 2; and the turnout P1 is locked at the means of the cleared the normal position by the on- RMU board CC 2 Step The train 1 The RMU maintains the The on-board CC 1 is cleared The on-board CC 2 5 occupies G-3; allocation of the resource G-3 to from the P1-reverse post- obtains the and the train 2 the on-board CC 1, and maintains turnout zone, hands over G-P1 allocation of and occupies G-J2 the allocation of G-J2 to the on- to the on-board CC 2, and occupies G-P1 and and G-P1, as board CC 2, and the allocation of maintains the allocation of and the P1-pre-turnout well as the G-P1 to the on-board CC 1; G-3 occupies the obtained G-3 zone, and obtains normal position is occupied by the on-board CC the allocation of of the turnout 1, and G-J2 and G-P1 are and occupies G- P1. occupied by the on-board CC 2; J2; and the turnout and the turnout P1 is locked at the P1 is locked to the normal position by the on-board normal position by CC 2 means of the RMU

(29) TABLE-US-00002 TABLE 2 Resource name G-J1 G-J2 G-P1 Characteristic 1000 m 1000 m 500 m G-I G-3 parameters (for Allocated Characteristic Allocated Characteristic Allocated Characteristic 450 m Characteristic 450 m Resource example, length) and parameters and parameters and parameters allocated parameters allocated state State occupied State occupied State occupied State and idle State and idle User CC2 User CC2 User CC1 User CC2 User CC1 Shared or not NO Shared or not NO Shared or not YES Shared or not NO Shared or not NO Sharer None Sharer None Sharer CC2 Sharer None Sharer None Turnout Normal position position Locked or not YES

(30) TABLE-US-00003 TABLE 3 Resource name G-P1 Tracking Basic state condition Shunting condition Re- Allocated Current 400 P1-pre- P1-turnout P1-forward source and train m turnout movable side defense state State occupied region ahead zone zone zone Suc- Shunting Shared NO Length 100 Length 12 Length ceeding or not m m train tracking and shunting Turnout Normal Sharer None Occu- NO Occu- NO Occu- position position pied pied pied or not or not or not Locked YES Suc- None Occu- None Occu- None Occu- or not ceeding pier pier pier train region Con- CC2 Shared YES Shared YES Shared troller or or or not not not Sharer CC2 Sharer CC2 Sharer Resource name G-3 allocated G-P1 and Shunting condition State idle Re- P1-forward P1-reverse P1-forward P1-reverse Current 450 source side defense side defense post-turnout post-turnout train mm in state zone zone zone zone region total 48 Length 48 Length 340 Length 340 Shared NO m m m m or not NO Occu- NO Occu- NO Occu- YES Sharer None pied pied pied or not or not or not None Occu- None Occu- None Occu- CC1 Suc- None pier pier pier ceeding train region YES Shared NO Shared YES Shared NO or or or not not not CC2 Sharer None Sharer CC2 Sharer None

(31) TABLE-US-00004 TABLE 4 Resource name G-T2 G-T1 Allocated Allocated and G-P1 and occupied Tracking State occupied State 1000 Basic state condition Shunting condition Re- Current 200 Current mm Shared Current 400 P1-turnout source train m train in and train m P1-pre-turn movable state region ahead region total State occupied region ahead out zone zone Shared NO Shared NO Succeeding Shunting Shared NO Length 100 Length or or train or m not not tracking not Sharer None Sharer None Turnout Normal Sharer None Occupied NO Occupied position position or not or not Succeeding None Succeeding None Locked YES Succeeding None Occupier None Occupier train train or train region region not region Controler CC2 Shared YES Shared or or not not Sharer CC2 Sharer Resource name G-I allocated G-P1 and Shunting condition idle P1-forward P1-reverse State 450 Re- P1-turnout side side Current mm source movable defense defense P1-forward P1-reverse train in state zone zone zone post-turnout zone post-turnout zone region total 12 Length 48 Length 48 Length 340 Length 340 Shared NO m m m m m or not NO Occupied NO Occupied NO Occupied NO Occupied Sharer None or not or not or not or not None Occupier None Occupier None Occupier None Occupier CC1 Succeeding None train region YES Shared YES Shared NO Shared YES Shared NO or or or or not not not not CC2 Sharer CC2 Sharer None Sharer CC2 Sharer None

(32) Table 1 is a table showing the processing steps of resource management of the train operation control system based on train-ground coordination.

(33) Table 2 is a resource management list of RMU.

(34) Table 3 is a resource sharing list of CC 1.

(35) Table 4 is a resource sharing list of CC 2.

(36) Based on the analysis of resource management, the train operation control system based on train-ground coordination performs hierarchical management on the line resources and turnout resources. First, the RMU manages the line resources and turnout resources by section, adjacent trains then communicate with each other, and fine management is performed on resources in the section to achieve resource sharing between the trains, which makes the best of the line resources and turnout resources and improves the passing capacity of the lines.

(37) The above description only provides the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. A variety of equivalent modifications or substitutions readily conceivable to a person skilled in the art within the technical scope disclosed by the present invention should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subjected to the protection scope of the claims.