Patent application number | Description | Published |
20080306640 | SYSTEM AND METHOD FOR WIRELESSLY INTERFACING A LOCOMOTIVE CONSIST - A system is provided to wirelessly interface a locomotive consist including a plurality of locomotives. One locomotive of the plurality of locomotives includes a plurality of trainline cables to transmit a respective plurality of trainline signals during operation of the locomotive. The plurality of trainline cables extend between a trainline connector positioned adjacent to each end of the locomotive. The system includes at least one first connector device to wirelessly transmit the plurality of trainline signals of at least one first locomotive to at least one second connector device of at least one second locomotive. Each first connector device is coupled to at least one trainline connector of at least one first locomotive, and each second connector device is coupled to at least one trainline connector of at least one second locomotive. | 12-11-2008 |
20090115633 | METHODS AND SYSTEMS FOR AUTOMATED WARNING DEVICE - Methods and systems for automatically sounding a vehicle warning are provided. The method includes determining when the vehicle is within a predetermined distance to a warning area, and determining a speed of approach of the vehicle to the warning area. The method also includes determining an initiation point to activate the vehicle warning based on the speed of approach of the vehicle, and sounding the vehicle warning at the initiation point. | 05-07-2009 |
20100029209 | SYSTEM, METHOD, AND COMPUTER SOFTWARE CODE FOR PROVIDING AN AUXILIARY COMMUNICATION PATH WHEN A PRIMARY COMMUNICATION PATH IS UNAVAILABLE - A method for communicating on a train that has at least two locomotives, the method including determining when a primary communication path ceases to be available for a specific subsystem of the train, identifying at least one auxiliary communication path to transmit information for the specific subsystem, configuring a message for the specific subsystem which complies with a message format of the at least one auxiliary communication path, and transmitting the message on the at least one auxiliary communication path. A system and a computer software code are further disclosed for providing a communication system for a powered system. | 02-04-2010 |
20100217462 | OPERATING SYSTEM AND METHOD FOR CONTROLLING A POWERED VEHICLE - A system for the communication of data used in the operation of a powered vehicle comprises a plurality of controllers onboard the powered vehicle for controlling operations of the vehicle. At least one of the controllers has a memory in which data is stored and the data is accessible and used by at least two of the controllers for controlling vehicle operations. A communication link is provided between the at least two controllers for sharing data stored in the memory of one of the controllers to control operations of the powered vehicle. | 08-26-2010 |
20150081214 | SYSTEM AND METHOD FOR IDENTIFYING DAMAGED SECTIONS OF A ROUTE - A method and system for examining velocity differences in a vehicle speed of a vehicle and the angular speed of the axles and/or wheels of the vehicle system traveling along a route to determine if the route is damaged and/or to identify the location of the potentially damaged section of the route. The differences may represent wheel creeps of the vehicle system. | 03-19-2015 |
Patent application number | Description | Published |
20140016558 | ADAPTIVE SYSTEM FOR EFFICIENT TRANSMISSION OF POWER AND DATA THROUGH ACOUSTIC MEDIA - An apparatus and method for transmitting data and power through a metal barrier using ultrasonic waves, having ultrasonic transmission channels through the barrier formed by coupling ultrasonic transducers on opposite sides of the barrier. A power transmitter sends power over a channel and forward and reverse data transmitters send forward and reverse data signals by orthogonal frequency-division multiplexing OFDM over a separate channel. The data signals are made up of plural sub-carriers at plural different sub-carrier frequencies with none of the sub-carriers of the forward transmission signal being at a power harmonic frequency. | 01-16-2014 |
20140043944 | ULTRASONIC HIGH TEMPERATURE AND PRESSURE HOUSING FOR PIEZOELECTRIC-ACOUSTIC CHANNELS - An ultrasonic transducer with housing contains a transducer assembly, an outer housing surface being fixed against a barrier surface for transferring ultrasonic waves to and from a barrier. The housing has an inner surface with plateau. A cap closes the housing and the transducer assembly has a piezoelectric transducer with a pressure surface around its outer perimeter and an opposite vibration surface engaging the plateau. A ring engages the pressure surface for biasing the vibration surface against the plateau. A holder engages the cap, transducer and ring for positioning and a plurality of springs are spaced around the transducer perimeter and between the cap and ring for biasing the vibration surface toward or against the raised plateau. A viscous couplant is between the vibration surface and plateau for enhancing transmission of the ultrasonic waves. | 02-13-2014 |
20140146641 | METHOD AND APPARATUS FOR AN ACOUSTIC-ELECTRIC CHANNEL MOUNTING - Method and apparatus for rotational alignment and attachment of ultrasonic transducers to a barrier with one submerged surface uses a temporary transducer assembly to position mounting rings on opposite surfaces of the barrier. Plural permanent transducers are then mounted to each mounting ring and are aligned with each other across the barrier by virtue of the alignment of their mounting rings. The submerged mounting ring is used like a cylinder in combination with a mounting plate for the transducers on the submerged side of the barrier or each submerged side transducer has a suction cup fitting for use to exclude water from between each transducer and the submerged barrier surface to facilitate bonding of the submerged side transducers to the barrier. | 05-29-2014 |
20150049587 | FULL-DUPLEX ULTRASONIC THROUGH-WALL COMMUNICATION AND POWER DELIVERY SYSTEM WITH FREQUENCY TRACKING - A method and apparatus provide simultaneous bi-directional communications through a barrier using a pair of piezoelectric transducers. Outside-to-inside transmission of differentially encoded binary data is only sampled at the inside when a known repeated bit in a Barker sequence is transmitted in the other direction. Differentially encoded data is translated based on the absolute value of differences between each signal envelope sample and the previous signal envelope sample. Inside-to-outside data is transmitted by varying an electrical load on the inside transducer to vary the proportion of a continuous wave signal it reflects. The reflected portion of the continuous wave changes the electrical impedance of the outside transducer and this change is measured and interpreted as binary data. Two frequency selection algorithms select minimally sufficient and then optimal frequencies for power and data transmission by a frequency stepping process. | 02-19-2015 |
20150085949 | MULTI-CHANNEL THROUGH-WALL COMMUNICATION SYSTEM USING CROSSTALK SUPPRESSION - A system for communicating through a solid wall uses piezoelectric transducers in a multiple-input multiple-output configuration and applies crosstalk suppression. Methods of suppressing or avoiding crosstalk between parallel communication channels includes zero-forcing, eigenmode transmission, and least mean squared error processing. Orthogonal frequency division multiplexing can be used to increase transmission rates using many subchannels. Bit-loading can be used to maximize system performance. | 03-26-2015 |