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| Number | Title | Issue Date |
| 8157218 | Railway vehicle detection A method is disclosed of detecting a railway vehicle, comprising using the time difference between receiving at first and second points a signal sent from the vehicle at a given time to produce an indication of the location of the vehicle. ... | 04/17/2012 |
| 8118266 | Apparatus for generating position signals for rail-bound vehicles, in particular magnetic levitation vehicles An apparatus generates position signals to indicate the position of a rail-bound vehicle along a travel way throughout which travel way many markings are located. The apparatus includes at least one sensor located on the vehicle for scanning the markings and outputt... | 02/21/2012 |
| 8104722 | Transporting system, and method of controlling the transporting system A transporting system is provided with: a track having a junction point; a plurality of transporting vehicles, each travelling on the track; and a transferring device which has (i) a left portion disposed on an edge on a left side of each of two track portions that ... | 01/31/2012 |
| 7975968 | Method and apparatus for detection of the occupied or free state of a track section A method and a device for detecting the occupied or free status of a section of track by way of a track current circuit, into which a transmitted signal is introduced and from which at least one detection signal is extracted. A longer maximum possible track length i... | 07/12/2011 |
| 7959112 | Wheel detection and classification system for railroad data network A system for detecting and classifying a wheel of a rail vehicle traveling on a railway track includes a plurality of wheel detectors coupled to one rail of the railway track and configured to detect presence of the wheel and to generate signals representative there... | 06/14/2011 |
| 7954770 | Methods and system for jointless track circuits using passive signaling In a jointless track system, passive signaling devices (“PSDs”) are coupled to a railroad track. The PSDs are used to optimize the amplitude, modulation, coding, and frequency of waveforms that are applied to the track (by signaling points) for at least three tr... | 06/07/2011 |
| 7618010 | Method, computer software code, and system for determining a train direction at a railroad crossing In a railroad crossing warning system having an electronic transmitter located on a first side of a road crossing connected across both railway rails, a first electronic receiver on the first side of the road crossing connected across both railway rails, a second el... | 11/17/2009 |
| 7441727 | Highway-rail grade crossing controller with out of service mode An electronic controller for a highway-railroad grade crossing warning system is coupled to an approach circuit and to an island circuit and activates a warning device when a train is present in either of the approach or the island circuits. The controller has a dis... | 10/28/2008 |
| 7395140 | Geographic information system and method for monitoring dynamic train positions A geographic information system (GIS) displays geographic roadway data, geographic track data and geographic train position data. The GIS includes a GIS database having static roadway and track data. A computer aided dispatching (CAD) system includes a task to deter... | 07/01/2008 |
| 7353418 | Method and apparatus for updating serial devices The present invention provides a method and apparatus for updating serial devices. The apparatus includes a plurality of serial registers. The apparatus further includes a device adapted to provide a signal and a plurality of parallel registers, wherein each of the ... | 04/01/2008 |
| 7303169 | Rail guided vehicle system An overhead running vehicle 10 uses an absolute position sensor or an encoder to detect its own position. The overhead running vehicle 10 then reports its own position and state to a system controller 14 via a communication line also used as an ... | 12/04/2007 |
| 7296770 | Electronic vital relay A railroad signaling method includes measuring a track current on a first track section, measuring a local voltage on the railroad line wires, determining whether a magnitude of the track current meets or exceeds a threshold value independent of the local voltage, a... | 11/20/2007 |
| 7268699 | Highway-rail grade crossing hazard mitigation A hazard mitigation system to detect an object in a highway-railway grade crossing. A structure is provided that includes a fixed foundation and a surface layer that is cushionably placed above the foundation, such that the structure is located between tracks at the... | 09/11/2007 |
| 7268565 | System and method for detecting rail break/vehicle A system for detecting a rail break or train occupancy includes a current source adapted to deliver a current to an isolated block of a rail track. A voltage sensor is coupled to the isolated block and configured to detect voltage across the isolated block. A shunt ... | 09/11/2007 |
| 7269487 | Method for train positioning In the state that a train moves from a track circuit 3T toward a track circuit 5T, and a train detection signal TD1 is supplied from the boundary between the track circuits 3T and 5T to the track circuits 3T and 5T, a... | 09/11/2007 |
| 7236860 | Method and system for ensuring that a train does not pass an improperly configured device A train control system includes a positioning system and consults a database to determine when the train is approaching a configurable device such as a switch or grade crossing gate. The system continuously interrogates the device to determine its status as the trai... | 06/26/2007 |
| 7226021 | System and method for detecting rail break or vehicle A rail break or vehicle detection system includes a plurality of voltage sources, each coupled to one of the plurality of zones. A plurality of resistors are provided, each coupled in series with one of the plurality of voltage sources. A plurality of current sensor... | 06/05/2007 |
| 7219067 | Total transportation management system A system for determining the sources of delay of a transportation mean includes a wayside sub-system, a locomotive sub-system, a railcar sub-system, a a yard sub-system, a schedule sub-system, a monitoring and diagnostic sub-system and a management sub-system. Real-... | 05/15/2007 |
| 7209810 | Locomotive location system and method A locomotive location system and method utilizes inertial measurement inputs, including orthogonal acceleration inputs and turn rate information, in combination with wheel-mounted tachometer information and GPS/DGPS position fixes to provide processed outputs indica... | 04/24/2007 |
| 7201350 | Signaling safety system A signaling safety system includes transmitter-receiver units for ground-train communication by radio in regular safety operation mode, using a base station and an antenna. The position of each train car is communicated from the cars to a ground train controller whi... | 04/10/2007 |
| 7199883 | System and method for sensing position of a vehicle A system determines the position of a vehicle moving responsive to an inverter having a 360 degree electrical cycle. The system includes a guideway comprising a linear synchronous motor excited by the inverter, a MAGLEV adapted to move with respect to the guideway a... | 04/03/2007 |
| 7200470 | Train detection system and a train detection method A train detection system includes transmitters receivers connected to a track circuit for transmitting and receiving a train detecting signal to and from the track circuit, and a control device on the ground, which transmits the train detecting signal to the transmi... | 04/03/2007 |
| 7196636 | Railroad crossing warning system A highway/railroad crossing detection and warning system which uses sets of Doppler radar transmitters and receivers to detect the approach of a train coming from either direction toward a highway crossing. The Doppler radar sets are located an extended distance fro... | 03/27/2007 |
| 7165748 | Train position detection system A train position detection system which enables train position detection based on a combination of passing information obtained when a train passes over a point at which a ground marker is installed and position information about the ground marker stored in an onboa... | 01/23/2007 |
| 7152347 | Method and apparatus for applying railway ballast A method and apparatus for spreading ballast along railways makes use of an inertial measurement system to determine where to apply ballast from a hopper car. A variety of techniques can be used to determine the location and speed of the ballast spreading train, inc... | 12/26/2006 |
| 7140577 | Remote system for monitoring and controlling railroad wayside equipment A system for remote control of an electrically operated railroad wayside equipment having a power supply for powering the wayside equipment. a central controller provides central control signals. A transmitter associated with the controller receives the control sign... | 11/28/2006 |
| 7143017 | Remote control locomotive simulator A remote control locomotive simulator including a display and a first input device similar to a remote control locomotive controller to be operated by the operator to provide train signals. A computer drives the display to move a train relative to a track in respons... | 11/28/2006 |
| 7142737 | Intrusion detection system for use on single mode optical fiber using a storage register for data A telecommunications optical fiber is secured against intrusion by detecting manipulation of the optical fiber prior to an intrusion event. This can be used in a non-locating system where the detection end is opposite the transmit end or in a locating system which u... | 11/28/2006 |
| 7127336 | Method and apparatus for controlling a railway consist An apparatus for controlling a railway consist, the apparatus comprising: a consist model adapted for computing an objective function from a set of candidate driving plans and a set of model parameters; a parameter identifier adapted for calculating the model parame... | 10/24/2006 |
| 7106244 | Freight container monitoring system A system and a method for monitoring a freight container are provided. The method includes the steps of generating a resonant spectrum representative of an initial condition of internal surfaces and contents of the freight container, and saving the resonant spectrum... | 09/12/2006 |
| 7096096 | Method and system for automatically locating end of train devices An end of train unit includes a positioning system such as a GPS receiver and is configured to transmit a message including the EOT unit's location when the EOT unit detects a loss of air pipe pressure and/or it is tipped over and/or a low battery condition is detec... | 08/22/2006 |
| 7092801 | Train control system and method of controlling a train or trains A train control system includes positioning systems at the end of the train and at the front of the train, allowing the conductor or engineer to unambiguously determine that no cars of the train have become detached. The positioning system at the end of the train is... | 08/15/2006 |
| 7079025 | Reconfigurable geolocation system A portable reconfigurable geolocation system is provided. The system includes a portable user node and one or more portable pseudolite nodes in communication one another and with the user node. Each of the user nodes and pseudolite nodes includes a transmitter that ... | 07/18/2006 |
| 7072747 | Strategies for locomotive operation in tunnel conditions A method of controlling operation of a train (T) for passage of the train through a tunnel. The train has a plurality of locomotives (L1-Ln) pulling the train. The position of the lead locomotive relative to the tunnel entrance is determined, as is the amount... | 07/04/2006 |
| 7043360 | Sensor unit In a sensor unit, an antenna section receives a high-frequency signal transmitted from a positioning system for output to a combining circuit. Also, in the sensor unit, a sensor section detects an angular velocity around one axis, and further detects an acceleration... | 05/09/2006 |
| 7017864 | Railway track circuits Railway track circuit apparatus for train detection comprises a track circuit transmitter and a receiver, wherein the transmitter generates a QPSK modulated signal that is transmitted into a track circuit and which is detected by the receiver. ... | 03/28/2006 |
| 7007898 | Method and apparatus for railcar data acquisition and communication An apparatus comprising: a data acquisition module adapted for acquiring railcar data from a railcar and generating acquired data; and an electronic transmitter adapted for receiving the acquired data, deriving transmitted data from the acquired data, and transmitti... | 03/07/2006 |
| 7006012 | Automatic train stop system In an automatic train stop system in which a track circuit 3 is divided into track circuit sections 1T, 2T and 3T, and a digitized train control information telegram (ATS telegram) 8 is transmitted through the track circuit section... | 02/28/2006 |
| 7006957 | Locomotive parking management tool A system for managing locomotives in a railyard including a parking yard and a service yard, based on possible future states of the parking yard and the service yard. The system includes a computer and utilizes an algorithm that enumerates possible present locomotiv... | 02/28/2006 |
| 6985803 | System and method for monitoring the condition of a vehicle A system for monitoring the condition of a vehicle has at least one wireless transmitter in on the vehicle, and in communication with the vehicle computer system. Data representative of operating parameters generated during the operation of the vehicle is downloaded... | 01/10/2006 |
