摘要:
A method for improving train performance, the method including determining a rail car parameter for at least one rail car to be included in a train, and creating a train trip plan based on the rail car parameter in accordance with one or more operational criteria for the train.
摘要:
A navigation system includes a computer readable storage medium having a sequence of instructions stored thereon, which, when executed by a processor, causes the processor to acquire a plurality of parameters of a train comprising parameters measured after the train has begun a journey. The train includes a plurality of vehicles providing tractive effort and a consist coupled to the plurality of vehicles. The sequence of instructions also causes the processor to calculate the tractive effort of less than all of the plurality of vehicles based on the acquired plurality of parameters.
摘要:
A method and apparatus for power control of the re-transmission data packet in a wireless communication system is disclosed. A first wireless communication device is provided that receives (210) a data packet from a second wireless communication device and determines (220) if the data packet is correctly decoded. If the data packet is not correctly decoded, the first wireless communication device calculates (230) a first re-transmission power required for correctly decoding the data packet based on a signal to noise ratio (Eb/No) versus frame error rate (FER) relationship. And further calculates a power difference (240) between the calculated re-transmission power and the power of the received data packet and transmits the power difference (250) to the second wireless communication device. The second wireless communication device calculates (340) a second re-transmission power based on the received power difference and re-transmits (350) the data packet at the calculated re-transmission power.
摘要:
Techniques that enable a user or customer at a system site to review and, if desired, modify data identified at the system site for transmission to a diagnosis site prior to the transmission. The identified diagnostic data may be modified such that data that the user does not want to be sent to the diagnosis site (e.g., sensitive data) is excluded from the data communicated to the diagnosis site. The data may be modified by removing or excluding the sensitive data from the data that is communicated to the diagnosis site or replacing the sensitive data with non-sensitive data. The modified data may then be communicated from the system site to the diagnosis site in the form of a package.
摘要:
Techniques for non-intrusive performance of diagnostic actions including actions that result in gathering of diagnostic data in response to a condition detected in a monitored system. In one embodiment, the diagnostic actions are performed asynchronously by processes or threads that are different from the failing process or thread that receives or detects the condition that triggers the diagnostic actions such that the failing process or thread can continue processing without being affected by the executions of the diagnostic actions. Multiple asynchronous processes or threads that are different from the failing process or thread may be spawned to perform multiple diagnostic actions in parallel. The asynchronous processes or threads may be monitored to ensure that they do not adversely impact the monitored system.
摘要:
A method and base station for optimizing a data rate control value for a wireless communication device in a communication network system is provided. The method comprises receiving (304) a data rate control value from a wireless communication device. Further, the method comprises determining (306) a data transfer rate, based on the data rate control value. Moreover, the method comprises optimizing (308) the data rate control value by using a set of parameters, which is based on feedback from the wireless communication device.
摘要:
Method, apparatus and computer-readable code are provided for detecting a location of an incipient ground fault in an electrical propulsion system. The apparatus may include a sensor configured to sense a respective ground leakage signal associated with a ground of the propulsion system. The apparatus may further include a compensator coupled to the sensor to combine the ground leakage signal and a compensation signal to generate a compensated ground leakage signal. A correlator is coupled to the compensator to receive the compensated ground leakage signal, and is further coupled to receive at least one signal indicative of a respective energization state of a respective electrical phase for each respective one of the plurality of electrical devices. The correlator is configured to individually correlate the compensated ground leakage signal with each received phase energization state signal, and supply an individual correlation signal between the compensated ground leakage signal and each received phase energization state signal. At least one characteristic of the compensation signal is configured to reduce effects expected in the ground leakage signal when a predetermined rate of change of voltage occurs. A processor is coupled to the correlator for processing each of the individual correlation signals supplied by the correlator and extracting a correlation value from the supplied correlation signals. The correlation value may be indicative of an incipient ground fault, if any, in a respective phase of one of the plurality of electrical devices.
摘要:
A system for operating a train having one or more locomotive consists with each locomotive consist comprising one or more locomotives, the system including a locator element to determine a location of the train, a track characterization element to provide information about a track, a sensor for measuring an operating condition of the locomotive consist, a processor operable to receive information from the locator element, the track characterizing element, and the sensor, and an algorithm embodied within the processor having access to the information to create a trip plan that optimizes performance of the locomotive consist in accordance with one or more operational criteria for the train.
摘要:
A system and method for retrofitting a propulsion circuit of an existing Off Highway Vehicle to enable the propulsion circuit to operate as a hybrid energy Off Highway Vehicle propulsion circuit. The hybrid propulsion circuit includes a primary power source, and a traction motor for propelling an Off Highway Vehicle in response to the primary electric power. The traction motor has a motoring mode of operation and a power dissipation mode of operation. The traction motor generates dynamic braking electrical power in the power dissipation mode of operation. An electrical energy storage system includes a chopper circuit coupled to an energy storage device. The storage device is responsive to the chopper circuit to selectively store electrical energy generated in the power dissipation mode. The storage system selectively provides secondary electric power from the storage device to traction motor to assist in propelling the Off Highway Vehicle during the motoring mode.
摘要:
An electric storage battery system carried on a hybrid energy off-highway vehicle including wheels for supporting and moving the vehicle, an electrical power generator, and traction motors for driving the wheels, with electrical power generated on the vehicle being stored at selected times in the electric storage battery system and discharged from the electric storage battery system for transmission to the traction motors to propel the vehicle, with the vehicle and battery system being exposed to a range of environmental conditions is provided. The storage battery system includes at least one battery for storing and releasing electrical power, wherein the at least one battery generates an internal battery operating temperature that is independent of and exceeds the highest environmental temperature of the vehicle and the at least one battery.