G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
G06F11/085—Error detection or correction by redundancy in data representation, e.g. by using checking codes using codes with inherent redundancy, e.g. n-out-of-m codes
B—PERFORMING OPERATIONS; TRANSPORTING
B61—RAILWAYS
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor