PROCEDURE FOR THE POSITION AND SPEED REGULATION
<Fulltext not available> A rail vehicle position (P1, P2) and speed measurement procedure obtains values from at least two different independent procedures (A11, A12; A21, A22) with different power supplies and different locations using majority voting with statistical processing (B1, B2) to produce true outputs (MW1, MW2) with status signals. Method for determining the position and speed of a rail-mounted vehicle, with
A position and speed values (P1, P2) each being obtained from at least two different mutually independent measuring methods (A11, A12; A21, A22),B the measurement values (M11, M12; M21, M22) representing the position and the speed and obtained in method step A are fed to an evaluation unit (B1, B2), in which the position and speed are determined (MW1, MW2),characterised in that
in method step A, the measuring methods (A11, A12; A21, A22) each generate a status signal (St11, St12, St21, St22) in addition to the measurement values (M11, M12, M21, M22), said status signal indicating the validity of the generated measurement value (M11, M12, M21, M22) and the status signals (St11, St12, St21, St22) are fed to the evaluation unit (B1, B2). Method according to claim 1,characterised in that
the status signal (St11, St12, St21, St22) contains the following data:
- questionable plausibility and/or- system status based on protocols in a log file and/or- re-start/reboot of the measuring method since the last transmission of a measurement value. Method according to claim 1 or 2,characterised in that
the obtained measurement values (M11, M12, M21, M22) are subjected to a correlation determination and in the case of a correlation which is too low, the relevant status signal (St11, St12, St21, St22) indicates an invalid measurement value (M11, M12, M21, M22). Method according to one of claims 1 to 3,characterised in that
in method step A, the measuring methods (A11, A12; A21, A22) each have their own time base. Method according to one of claims 1 to 3,characterised in that
in method step A, a time base used in a common manner by at least two measuring methods (A11, A12; A21, A22) is fail-safe. Method according to one of claims 2 to 5,characterised in that
in method step B, at least one evaluation unit (B1, B2) is alternatively configured as a 2 from 2 or a 2 from 3 evaluation system. Method according to one of claims 2 to 6,characterised in that
in method step B, the position and/or speed (M1, M2) is/are determined in the at least one evaluation unit (B1, B2) by means of a statistical method. Method according to one of claims 2 to 7,characterised in that
the evaluation units (B1, B2) and function blocks (A11, A12, A21, A22), in which the measuring methods (A11, A12, A21, A22) are implemented, each have a separate power supply. Method according to claim 8,characterised in thatthe evaluation units (B1, B2) and the function blocks (A11, A12, A21, A22) are installed at different sites within a rail vehicle or a railway train.