Heavy freight train marshalling device and marshalling method, and electronically controlled pneumatic brake system

A heavy freight train marshalling method, employing a heavy freight train marshalling device which comprises a Head End Unit (HEU) and a plurality of carriage control units, wherein,

• the HEU is communicated with each of the carriage control units;
• each carriage control unit comprises a carriage control module, and a Beidou positioning module and a communication module respectively connected with the carriage control module;
• a first-vehicle identification terminal is further provided in the carriage control unit working as a first vehicle;
• the carriage control module acquires first-vehicle state data via the first-vehicle identification terminal;
• the Beidou positioning module is configured to acquire latitude and longitude data of the corresponding carriage control unit and,
• the carriage control mode receives, via the communication module, a command transmitted by the HEU, and transmits, to the HEU and via the communication module, the latitude and longitude data of the carriage control unit read from the Beidou positioning module and the first-vehicle state data of the carriage control unit;
• wherein, the method comprises the following steps of:
• (1) recording the total number of carriage control units as M;
• the first-vehicle state of a carriage control unit as the first vehicle as TRUE, and the first-vehicle state of the remaining carriage control units as NULL;
• (2) transmitting, by a Head End Unit (HEU), marshalling commands to all carriage control units via a communication unit, and switching the HEU to a train marshalling mode;
• (3) responding to, for a carriage control module of each carriage control unit, the marshalling command;
• acquiring, by a Beidou positioning module, latitude and longitude data of the carriage control unit, and acquiring, by detecting a first-vehicle identification terminal, first-vehicle state data of the carriage control unit;
• (4) transmitting, by the M carriage control units, the latitude and longitude data and the first-vehicle state data of the M carriage control units to the HEU via the communication modules, forming an array A[M];
• (5) traversing, by the HEU, the array A[M] to search a carriage control unit a[i] the first-vehicle state of which is TRUE;
• recording the location of the carriage control unit a[i] the first-vehicle state of which is TRUE as Location=1;
• taking out the carriage control unit a[i] from the array A[M] and storing it as FirstUnit;
• deleting the carriage control unit a[i] from the array A[M];
• rearranging to obtain an array A[M−1] denoted as BaseOrder;
• (6) using the FirstUnit as a starting point, calculating the distance from the FirstUnit to each carriage control unit in the BaseOrder to find a carriage control unit a[i] having a minimum distance from the starting point, and recording a location of the carriage control unit a[i] as Location=Location+1;
• (7) using the carriage control unit a[j] as a new FirstUnit, and deleting the carriage control unit a[i] from the BaseOrder;
• and
• (8) repeating the operations in the steps (6) and (7) to successively determine the location of the remaining M−2 carriage control units until the BaseOrder is empty, thus the marshalling of the heavy freight train is completed.