Methods and system for increasing data transmission rates across a three-phase power system
First Claim
1. A method for providing information by optimizing a data rate to a vehicle over a single three-phase power line utilized to provide power to the vehicle, said method comprising:
- assigning respective non-overlapping frequency bands to three conductors extending between a ground power system and the vehicle, the three conductors forming the three-phase power line;
generating respective carrier signals having respective carrier frequencies in the respective non-overlapping frequency bands;
modulating data onto the respective carrier signals to generate three transmission signals for transmitting the data from the ground power system to the vehicle;
switching the three transmission signals onto the three conductors of the three-phase power line to transmit the data at a corresponding data rate for each of the three conductors;
adjusting at least one of the respective carrier frequencies to increase the corresponding data rate;
demodulating the data within the vehicle; and
providing the data to one or more vehicle systems.
1 Assignment
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Accused Products
Abstract
A method for providing information by optimizing the data rate to a vehicle over a three-phase power line utilized to provide power to the vehicle is described. The method includes assigning three separate frequency bands to three respective conductors extending between a ground power system and the vehicle, generating carrier signals in three separate frequency bands and modulating various data onto three carrier signals to generate three transmission signals for sending the various data from the ground power system to the vehicle at frequencies within respective ones of the three separate frequency bands. The frequencies for each of the three separate frequency bands do not overlap one another. The method also includes switching the three transmission signals onto respective conductors of the three-phase power line, demodulating the various data within the vehicle, and providing the various data to one or more vehicle systems.
32 Citations
20 Claims
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1. A method for providing information by optimizing a data rate to a vehicle over a single three-phase power line utilized to provide power to the vehicle, said method comprising:
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assigning respective non-overlapping frequency bands to three conductors extending between a ground power system and the vehicle, the three conductors forming the three-phase power line; generating respective carrier signals having respective carrier frequencies in the respective non-overlapping frequency bands; modulating data onto the respective carrier signals to generate three transmission signals for transmitting the data from the ground power system to the vehicle; switching the three transmission signals onto the three conductors of the three-phase power line to transmit the data at a corresponding data rate for each of the three conductors; adjusting at least one of the respective carrier frequencies to increase the corresponding data rate; demodulating the data within the vehicle; and providing the data to one or more vehicle systems. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A data communication system comprising:
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a transmission medium extending between a ground power system and a vehicle, the transmission medium comprising a single three-phase power line comprising three conductors corresponding to respective phases; a controller configured to; assign respective non-overlapping frequency bands to the three conductors; generate respective carrier signals having respective carrier frequencies in the respective non-overlapping frequency bands; allocate data for transmission over the transmission medium to a plurality of data packages; modulate the plurality of data packages onto the respective carrier signals for transmission of the plurality of data packages from the ground power system to the vehicle at a corresponding data rate for each of the three conductors; and adjust at least one of the respective carrier frequencies to increase the corresponding data rate. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system for transmission of broadband signals over a single three-phase power line, said system comprising:
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a ground power system configured to generate three-phase power; a three-phase power line comprising three conductors configured to deliver the three-phase power to an electrical load of a vehicle; a frequency generator configured to generate respective carrier signals having respective carrier frequencies within respective non-overlapping frequency bands for the three conductors; a data source configured to provide data; a controller communicatively coupled to the data source and programmed to; allocate the data from the data source into data packages for transmission over the three-phase power line from the ground power system to the vehicle; assign the data packages to the three conductors based on corresponding data rates for the three conductors; and adjust the carrier frequencies to increase the corresponding data rates; and a modulator configure to modulate the data packages from the controller onto at least one of the respective carrier signals for transmission over a corresponding one of the three conductors to transmit the data packages from the ground power system to the vehicle. - View Dependent Claims (18, 19, 20)
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Specification