TY JOUR TI Point machines control in computer systems of hump interlocking KW hump interlocking KW point machines KW automatic return KW equipment safety redundancy KW separation of equipment KW safe structure KW functional converter with asymmetrical failure JO Transport automation research AU Nikitin, A.B. AU Kovkin, A.N. PY 2015 IS 1 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"