FIELD: railway transport; testing facilities. SUBSTANCE: signals of at least one proximity sensor in zone of point rails are evaluated when train passes through switch. Minimum value of distance found during the passage is recorded and changes in minimum distance value and at least first limited value for minimum distance are compared and if first limited value is exceeded, signal is generated. EFFECT: improved quality of condition checking of switch points. 5 cl, 3 dwg
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Authors
Dates
1997-07-27—Published
1992-05-07—Filed