Abstract: A compressed-air brake assembly for a rail vehicle includes at least one brake cylinder for producing a pressing force for a friction brake, wherein at least one control valve forms a corresponding brake-cylinder pressure in accordance with a pressure in a main air line conducted to the at least one brake cylinder via a line arranged therebetween. The at least one control valve interacts with at least one compressed-air sensor. A reserve-air tank can be controlled by the at least one control valve and stores the reserve air for the at least one brake cylinder. At least one compressed-air sensor arranged on the at least one control valve is connected to an energy source and a data memory having an interface for reading out data, wherein the data in the data memory contain information about a pressure level in the at least one brake cylinder.

Abstract: A compressed-air brake assembly for a rail vehicle includes at least one brake cylinder for producing a pressing force for a friction brake, wherein at least one control valve forms a corresponding brake-cylinder pressure in accordance with a pressure in a main air line conducted to the at least one brake cylinder via a line arranged therebetween. The at least one control valve interacts with at least one compressed-air sensor. A reserve-air tank can be controlled by the at least one control valve and stores the reserve air for the at least one brake cylinder. At least one compressed-air sensor arranged on the at least one control valve is connected to an energy source and a data memory having an interface for reading out data, wherein the data in the data memory contain information about a pressure level in the at least one brake cylinder.

Abstract: A method includes storing a plurality of role data entries on a storage device coupled to a computer system, each role data entry corresponding to an assigned role of at least one of a plurality of individuals, each role corresponding to an enterprise with which the individual is associated and corresponding to a set of resources accessible through the computer system, receiving at the computer a resource request from one of the individuals, determining whether the requested resource is included in the set of accessible resources corresponding to the assigned role of the requesting individual, and selectively permitting access to the requested resource if the resource is determined to be in the set of resources corresponding to the assigned role of the requesting individual.

Abstract: A method includes storing a plurality of role data entries on a storage device coupled to a computer system, each role data entry corresponding to an assigned role of at least one of a plurality of individuals, each role corresponding to an enterprise with which the individual is associated and corresponding to a set of resources accessible through the computer system, receiving at the computer a resource request from one of the individuals, determining whether the requested resource is included in the set of accessible resources corresponding to the assigned role of the requesting individual, and selectively permitting access to the requested resource if the resource is determined to be in the set of resources corresponding to the assigned role of the requesting individual.