METHOD OF DETERMINING WHEEL LATERAL TO RAIL IN TRAIN MOVEMENT Russian patent published in 2011 - IPC B61K9/00 E01B35/12 

FIELD: transport.

SUBSTANCE: invention relates to using instrumentation for measuring railway wheel flange relative to rail head in rolling stock movement. Proposed method comprises recording wheel pressing to rail by video camera focused at zones of contact between wheel flanges and rail heads so that one video camera records the instant of wheel flange pressing to rail head while another video camera records the instant wheel flange comes off rail head in real time. Results of video observations are recorded at once on digital data carrier. Then, computer programme is used to divide recorded data into frames and number of pixels in each frame are counted. Image on each frame is converted from colour into black-and-white image. Note heat that black color is used to encode the gap between wheel flange and rail heat while white colour is used to encode wheel and rail. Pixels are converted into millimetres and tables are compiled for each video camera: frame number is gap in millimetres, to determine moment of lateral force action start, its maximum value and moment of action termination. Proceeding from train weight and gap change rate, wheel lateral pressure to rail is calculated.

EFFECT: higher accuracy of measurement, higher rate of data processing.

3 dwg, 1 tbl