Train driving assistance method and system

Abstract

A train driving assistance method includes: pre-setting a train traveling line database (S 0 ); acquiring the position of a train (S 1 ); acquiring the position information about the next early-warning point (S 2 ); calculating an early-warning distance between the train and the next early-warning point according to the position of the train and the position information about the next early-warning point (S 3 ); when the early-warning distance is calculated to be smaller than a pre-set value, displaying the early-warning information corresponding to the position information about the next early-warning point (S 4 ); screening an optimal solution according to the train arrival time information and the number brake times of the train (S 5 ); and determining the driving information according to the optimal solution and displaying the determined driving information (S 6 ). Through the method, more driving reference information can be provided for the driver. Also provided is a train driving assistance system.

1 . A train driving assistance method, wherein a train traveling line database is preset, and the train traveling line database comprises: position information of a preset pre-warning point, pre-warning information, the number of braking times of a train between two adjacent stations, train arrival time information, driving information between the two adjacent stations, a corresponding relationship between the position information of the pre-warning point and the pre-warning information, and a corresponding relationship among the train arrival time information, the number of braking times and the driving information, and one record of the corresponding relationship among the train arrival time information, the number of braking times and the driving information is defined as a solution, and the method comprises:
 S 1 : acquiring a position of a train;   S 2 : acquiring position information of a next pre-warning point;   S 3 : calculating a pre-warning distance between the train and the next pre-warning point based on the position of the train and the position information of the next pre-warning point;   S 4 : displaying pre-warning information corresponding to the position information of the next pre-warning point in the case that the pre-warning distance is calculated to be less than or equal to a preset value;   S 5 : screening a preferable solution based on the train arrival time information and the number of braking times of the train;   S 6 : determining driving information according to the preferable solution, and displaying the determined driving information.   
     
     
         2 . The method according to  claim 1 , wherein the driving information comprises a traction level, a traction speed, a traveling mileage, a braking distance and a braking level. 
     
     
         3 . The method according to  claim 1 , wherein the pre-warning information comprises speed limit information of the pre-warning point, curve information of the pre-warning point and kilometer post information of the pre-warning point. 
     
     
         4 . The method according to  claim 1 , wherein the train traveling line database further comprises a kilometer post of a station; and
 the step S 1  comprises:   acquiring a traveling speed of the train; and   calculating the position of the train according to a first formula, the first formula is: S 2 =S 1 +vt, wherein S 2  is the position of the train, S 1  is a kilometer post of a last station, v is the traveling speed of the train, and t is a traveling time period since the train sets out from the last station.   
     
     
         5 . The method according to  claim 1 , wherein the step S 5  comprises:
 screening primary solutions that the train arrives on time based on the train arrival time information; and 
 screening a preferable solution with a minimum number of braking times from the primary solutions. 
 
     
     
         6 . A train driving assistance system, comprising:
 a storage unit for storing a train traveling line database, wherein the train traveling line database comprises: position information of a preset pre-warning point, pre-warning information, the number of braking times of a train between two adjacent stations, train arrival time information, driving information between the two adjacent stations, a corresponding relationship between the position information of the pre-warning point and the pre-warning information, and a corresponding relationship among the train arrival time information, the number of braking times and the driving information, and one record of the corresponding relationship among the train arrival time information, the number of braking times and the driving information is defined as a solution;   a first acquiring unit for acquiring a position of the train;   a second acquiring unit for acquiring position information of a next pre-warning point from the train traveling line database;   a pre-warning distance calculating unit for calculating a pre-warning distance between the train and the next pre-warning point based on the position of the train acquired by the first acquiring unit and the position information of the next pre-warning point acquired by the second acquiring unit;   a first display unit for displaying pre-warning information corresponding to the position information of the next pre-warning point in the case that the pre-warning distance is calculated to be less than or equal to a preset value;   a screening unit for screening a preferable solution based on the train arrival time information and the number of braking times of the train; and   a second display unit for determining driving information according to the preferable solution, and displaying the determined driving information.   
     
     
         7 . The system according to  claim 6 , wherein the driving information comprises a traction level, a traction speed, a traveling mileage, a braking distance and a braking level. 
     
     
         8 . The system according to  claim 6 , wherein the pre-warning information comprises speed limit information of the pre-warning point, curve information of the pre-warning point and kilometer post information of the pre-warning point. 
     
     
         9 . The system according to  claim 6 , wherein the train traveling line database further comprises a kilometer post of a station; and
 the first acquiring unit comprises:   a speed acquiring sub-unit for acquiring a traveling speed of the train; and   a position calculating sub-unit for calculating the position of the train according to a first formula, the first formula is: S 2 =S 1 +vt, wherein S 2  is the position of the train, S 1  is a kilometer post of a last station, v is the traveling speed of the train, and t is a traveling time period since the train sets out from the last station.   
     
     
         10 . The system according to  claim 6 , wherein the screening unit comprises:
 a first screening sub-unit for screening primary solutions that the train arrives on time based on the train arrival time information; and   a second screening sub-unit for screening a preferable solution with a minimum number of braking times from the primary solutions.   
     
     
         11 . The method according to  claim 3 , wherein the train traveling line database further comprises a kilometer post of a station; and
 the step S 1  comprises:   acquiring a traveling speed of the train; and   calculating the position of the train according to a first formula, the first formula is: S 2 =S 1 +vt, wherein S 2  is the position of the train, S 1  is a kilometer post of a last station, v is the traveling speed of the train, and t is a traveling time period since the train sets out from the last station.   
     
     
         12 . The method according to  claim 2 , wherein the step S 5  comprises:
 screening primary solutions that the train arrives on time based on the train arrival time information; and 
 screening a preferable solution with a minimum number of braking times from the primary solutions. 
 
     
     
         13 . The system according to  claim 8 , wherein the train traveling line database further comprises a kilometer post of a station; and
 the first acquiring unit comprises:   a speed acquiring sub-unit for acquiring a traveling speed of the train; and   a position calculating sub-unit for calculating the position of the train according to a first formula, the first formula is: S 2 =S 1 +vt, wherein S 2  is the position of the train, S 1  is a kilometer post of a last station, v is the traveling speed of the train, and t is a traveling time period since the train sets out from the last station.   
     
     
         14 . The system according to  claim 7 , wherein the screening unit comprises:
 a first screening sub-unit for screening primary solutions that the train arrives on time based on the train arrival time information; and   a second screening sub-unit for screening a preferable solution with a minimum number of braking times from the primary solutions.