Abstract:
The invention relates to a system for determining the position of an object, a person or the like, comprising at least a transmitter for transmitting electromagnetic waves and at least a receiver for receiving electromagnetic waves, connected to which receiver is a positioning organ for, subject to the electromagnetic waves received by the receiver, determining a position of the object or the person located between the transmitter and the receiver, while the object or the person is not carrying the transmitter and the receiver, wherein the at least one transmitter and the at least one receiver form a first transmitter-receiver combination having a direct radio connection, and wherein the positioning organ determines the position of the object or the person between the transmitter and the receiver on the basis of, compared with a predetermined reference level, an attenuation of electromagnetic waves as received by the receiver of the first transmitter-receiver combination.
Abstract:
Die Erfindung betrifft ein Bahnübergangssicherungssystem mit einem Bahnübergangssicherungscontroller zur Steuerung von Sicherungseinrichtungen, insbesondere Lichtsignalanlagen, sowie ein Verfahren zur Überwachung und Ansteuerung eines Bahnübergangssicherungssystems. Um auf Kabelverbindungen weitgehend verzichten zu können, ist vorgesehen, dass der Bahnübergangscontroller von einem frequenzgesteuerten Gleisstromkreis für Fernbereich (LFTC - Long Frequency-operated Track Circuit) aktivierbar und von einem frequenzgesteuerten Gleisstromkreis für Nahbereich (SFTC - Short Frequency-operated Track Circuit) deaktivierbar ist.
Abstract:
A lamp system (200) includes a lamp assembly (210, 215) with a light source (212) coupled to a base (214), an electronic circuit (216) for operating the light source (212), and a switching device (218) for setting a flash rate of the light source (212). A lamp communication device (250) configured to transmit control signals to the lamp assembly (210). A communication network (260) interfaces with the lamp assembly (210) and the lamp communication device (250). The electronic circuit (216) is configured to operate the light source (212) in response to a control signal (262) transmitted by the lamp communication device (250) via the communication network (260), and in accordance with a set flash rate so that the light source (212) switches between an on state and an off state by default.
Abstract:
A system for reliable detection of an approaching train and warning the roadway workers in proximity of the track is described. The system comprises at least one train detector cone (TDC) deployed along a side of an active railroad track and one or more personnel warning cones (PWC) placed near the work site, the cones configured in a wireless mesh network to provide redundant communication links. Detection of a train by the train detector cone is transmitted to the personnel warning cones which provide audible and visual warnings to nearby roadway workers. The system also includes a remote server for centralized tracking and monitoring of the train detector cones and personnel warning cones.
Abstract:
This invention concerns a railroad warning system, and in particular a warning system for a grade crossing. The system may comprise a radio transmitter located on a train, to selectively transmit real-time radio warning signals while the train is in the vicinity of a crossing. And, a radio receiver located in a road vehicle, operable to receive radio warning signals, and relay an audible or visual warning related to the current hazard presented by the train, in the event the vehicle is determined to be approaching the crossing.
Abstract:
An approach annunciator for a railway includes at least one sensor for sensing a vehicle traveling along the railway, a control device (26) adapted to receive a first message from the at least one sensor and to create a second message, and a transmitting module (24) adapted to send the second message created by the control device (26). The control device (26) is adapted to operate the transmitting module (24) in one of a plurality of modes including an energy saving mode and an operation mode.
Abstract:
In the transport field, certain safety-sensitive areas such as level crossings are equipped with access-control devices (18) such as barriers and/or signal installations. Control of these access-control devices (18) is automated to the greatest possible extent. Such devices often do not meet the safety requirements, however, if the number of events triggering their use or the frequency of these events exceeds a given level. The aim of the invention is to provide a control method and associated safety device which are practically independent of the number of events, e.g. the passage of trains, triggering their use and the frequency of these events, and thus ensure a high standard of safety. To this end, the access-control devices (18) in the safety area (3) are actuated by a recording device (19) as a function of a number of objects entering a surveillance zone (17) and leaving this zone (17) in accordance with predetermined safety criteria.
Abstract:
Este método emplea al menos un sensor triaxial dispuesto en la vía, que captura continuamente la señal correspondiente a una vibración generada por un vehículo ferroviario circulando por un tipo cualquiera de vía ferroviaria. Posteriormente, se realiza la transformada discreta de Fourier de la señal capturada y se obtiene el espectro discreto. A continuación, dicho espectro discreto se correla con una base de datos que permite identificar el tipo de vehículo ferroviario que está circulando por las vías e informar también de la vía por la que circula, con opción de generar acciones distintas (tipos de informes, generación de avisos y alarmas) en concordancia al tipo de vehículo ferroviario detectado. Adicionalmente, el método aprovecha una redundancia entre dos tecnologías diferentes, un subsistema analógico y otro subsistema digital que aumenta la seguridad en la detección del vehículo ferroviario.