A temperature measurement device includes: a temperature sensor designed to measure a temperature, a thermo-generator forming, with the temperature sensor, what is known as a measurement surface, the thermo-generator being configured to convert thermal energy of the measurement surface into electrical energy, and the sensor being designed to measure a temperature of a sample in contact with the measurement surface, and an electronic board designed to receive the electrical energy converted by the thermo-generator and supply the temperature sensor, the device including the electronic board is positioned a non-zero distance away from the measurement surface in a direction perpendicular to the measurement surface.

A device for monitoring operation parameters of a vehicle axle including a measuring instrument (1) comprising at least a position sensor, a device (2) for communication of measured quantities to an external device, a mechanism (5) for conversion of mechanical energy of the axle to electrical energy and a memory (3) with a stored identification code. A device has the shape of a ring (4) that is applied on the vehicle axle in such a way that it encircles it. The ring (4) consists of at least two parts (4a, 4b) that are adapted for permanent connection around the vehicle axle. The mechanism (5) consists of a circumferential cavity (5a) in the inner part of the ring where a permanent magnet (5b) is freely positioned, at least one coil (5c), preferably four coils (5c) being positioned along its perimeter. The device (2) for communication of measured quantities is a wireless transmitter with a GSM interface or radio-frequency interface configured for communication of measured values together with the identification code (3) of the axle to an external processing unit.

A device for monitoring operation parameters of a vehicle axle including a measuring instrument (1) comprising at least a position sensor, a device (2) for communication of measured quantities to an external device, a mechanism (5) for conversion of mechanical energy of the axle to electrical energy and a memory (3) with a stored identification code. A device has the shape of a ring (4) that is applied on the vehicle axle in such a way that it encircles it. The ring (4) consists of at least two parts (4a, 4b) that are adapted for permanent connection around the vehicle axle. The mechanism (5) consists of a circumferential cavity (5a) in the inner part of the ring where a permanent magnet (5b) is freely positioned, at least one coil (5c), preferably four coils (5c) being positioned along its perimeter. The device (2) for communication of measured quantities is a wireless transmitter with a GSM interface or radio-frequency interface configured for communication of measured values together with the identification code (3) of the axle to an external processing unit.

A method of linking alarm data from physically disassociated wireless sensors to a train in motion. The sensor secured to a wheel axle-box of a rail carriage of a train to detect an over temperature alarm to enable a driver to stop the train. If the alarm condition is confirmed as belonging to the train, a Monitor/Relay immediately notes that there is a problem and warns an operator.

A method of linking alarm data from physically disassociated wireless sensors to a train in motion. The sensor secured to a wheel axle-box of a rail carriage of a train to detect an over temperature alarm to enable a driver to stop the train. If the alarm condition is confirmed as belonging to the train, a Monitor/Relay immediately notes that there is a problem and warns an operator.

A state monitoring device for use in a train set constituted by coupling cars each including a carbody and a pair of bogies arranged at both respective longitudinal direction end portions of the carbody and supporting the carbody includes: sensors provided at the respective bogies and configured to detect state information of devices provided at the bogies; wireless transmitters provided at the respective bogies and configured to wirelessly transmit sensor signals containing the detected state information; and at least one wireless receiver configured to receive the sensor signals wirelessly transmitted from the wireless transmitters.

A state monitoring device for use in a train set constituted by coupling cars each including a carbody and a pair of bogies arranged at both respective longitudinal direction end portions of the carbody and supporting the carbody includes: sensors provided at the respective bogies and configured to detect state information of devices provided at the bogies; wireless transmitters provided at the respective bogies and configured to wirelessly transmit sensor signals containing the detected state information; and at least one wireless receiver configured to receive the sensor signals wirelessly transmitted from the wireless transmitters.

Provided is a bearing monitoring device of a railcar, the railcar being constituted by coupling a plurality of cars including carbodies and bogies, the bearing monitoring device including: bearing temperature sensors provided at the respective bogies and configured to directly or indirectly detect temperatures of bearings of the bogies; at least one state sensor provided at at least one of the carbodies of the plurality of cars and configured to be used for calculating loads or rotating speeds of the bearings; and a storage unit provided at at least one of the carbodies of the plurality of cars and configured to store data pieces of signals detected by the bearing temperature sensors and the state sensor.

Provided is a bearing monitoring device of a railcar, the railcar being constituted by coupling a plurality of cars including carbodies and bogies, the bearing monitoring device including: bearing temperature sensors provided at the respective bogies and configured to directly or indirectly detect temperatures of bearings of the bogies; at least one state sensor provided at at least one of the carbodies of the plurality of cars and configured to be used for calculating loads or rotating speeds of the bearings; and a storage unit provided at at least one of the carbodies of the plurality of cars and configured to store data pieces of signals detected by the bearing temperature sensors and the state sensor.

A system for monitoring the state of a wheel of a rail vehicle includes an acquisition unit that is designed, upon a braking event, to acquire at least one operating parameter for the wheel, an evaluation unit that is designed to determine a temperature value for the wheel based on the acquired operating parameter; and a control unit that is designed to generate and to output an output on the basis of the determined temperature value. It furthermore relates to a method for monitoring the state of a wheel of a rail vehicle, in which, upon a braking event, at least one operating parameter for the wheel is acquired, a temperature value for the wheel is determined based on the acquired operating parameter and an output is generated and output on the basis of the determined temperature value.