Partitioned Wireless Communication System with Redundant Data Links and Power Lines
Embodiments are disclosed for a partitioned wireless communication system for a vehicle with redundant data links and power lines. In an embodiment, a system comprises: a communication gateway unit (CGU) located at a first location of the vehicle includes a communication processor, a first power supply, and a first data interface. A remote wireless transceiver unit (RWTU) located at a second location of the vehicle includes a second data interface coupled to the first data interface using redundant data links, a power interface coupled the first power supply to the RWTU using redundant power lines, and wireless transceiver(s) coupled to antenna(s) on the vehicle. The communication processor detects a loss of a first data link or a first power line, and in response to the detecting, selecting a second data link or second power line to transfer data or power, respectively, between the CGU and the RWTU.
1 . A system comprising:
a communication gateway unit (CGU) configured to analyze vehicle data of a vehicle and located at a first location of the vehicle, the CGU comprising:
a power supply; and
a processor configured to:
monitor for a loss or a disruption of power transfer on a first power line between the first power supply and a remote wireless transceiver unit (RWTU); and
in response to a detection of a loss or a disruption of power transfer on the first power line, select a second power line to transfer power to the RWTU; and
the RWTU that is located at a second location of the vehicle that is different from the first location, the RWTU being configured to obtain the vehicle data from the CGU and transmit the vehicle data to an external device that is located away from the vehicle, the RWTU comprising:
a power interface configured to couple the power supply to the RWTU using two or more power lines; and
one or more wireless transceivers coupled to one or more antennas on the vehicle, wherein the second location is closer to each of the one or more antennas than the first location.
2 . The system of claim 1 , wherein the power interface includes a smart power switch configured to monitor power delivered by the power supply on the first power line and, in response to a detection of the loss or the disruption of power transfer on the first power line, automatically select the second power line to transfer power to the RWTU.
3 . The system of claim 1 , wherein the processor is configured to monitor for the loss or the disruption of power transfer on the first power line between the power supply and the RWTU by monitoring at least one of current input, current outputs, voltage inputs, or voltage outputs at the power interface.
4 . The system of claim 1 , wherein:
the CGU further comprises a backup power supply; and
the power interface is further configured to couple the backup power supply to the RWTU.
5 . The system of claim 4 , wherein coupling the backup power supply to the RWTU comprises selecting the second power line or a third power line to transfer power from the backup power supply to the RWTU.
6 . The system of claim 1 , wherein the second location is underneath a roof of the vehicle.
7 . The system of claim 1 , wherein the first power line and the second power line have a different wiring path from the first location to the second location.
8 . The system of claim 1 , wherein each of the first power line and the second power line is included in a wiring harness with at least one data link of two or more data links, the two or more data links coupling a first data interface of the CGU to a second data interface of the RWTU.
9 . A method comprising:
monitoring, by a power interface of a vehicle, for a loss or a disruption of power transfer on a first power line of redundant power lines between a power supply of a communication gateway unit (CGU) and a remote wireless transceiver unit (RWTU) of the vehicle, the CGU being configured to analyze vehicle data of the vehicle, the RWTU being configured to obtain the vehicle data from the CGU and transmit the vehicle data to an external device that is located away from the vehicle, the CGU and the RWTU being placed at different locations of the vehicle, the RWTU being located at a second location of the vehicle that is closer to each of one or more antennas than a first location of the CGU; and
in response to a detection of a loss or disruption of power transfer on the first power line, selecting, by the power interface, a second power line of the redundant power lines to transfer power to the RWTU.
10 . The method of claim 9 , wherein the power interface includes a smart power switch configured to monitor power delivered by the power supply on the first power line and, in response to a detection of the loss or the disruption of power transfer on the first power line, automatically select the second power line to transfer power to the RWTU.
11 . The method of claim 9 , wherein the monitoring for the loss or the disruption of power transfer on the first power line between the power supply and the RWTU comprises monitoring at least one of current input, current outputs, voltage inputs, or voltage outputs at the power interface.
12 . The method of claim 9 , wherein:
the CGU further comprises a backup power supply; and
the power interface couples the backup power supply to the RWTU.
13 . The method of claim 12 , wherein coupling the backup power supply to the RWTU comprises selecting the second power line or a third power line to transfer power from the backup power supply to the RWTU.
14 . The method of claim 12 , wherein the second location is underneath a roof of the vehicle.
15 . The method of claim 12 , wherein the first power line and the second power line have a different wiring path from the first location to the second location.
16 . The method of claim 12 , wherein each of the first power line and the second power line is included in a wiring harness with at least one data link of two or more data links, the two or more data links coupling a first data interface of the CGU to a second data interface of the RWTU.
17 . One or more non-transitory storage media storing instructions that, when executed by one or more computing devices of a vehicle, cause the one or more computing devices to:
monitor for a loss or a disruption of power transfer on a first power line of redundant power lines between a power supply of a communication gateway unit (CGU) and a remote wireless transceiver unit (RWTU) of the vehicle, the CGU being configured to analyze vehicle data of the vehicle, the RWTU being configured to obtain the vehicle data from the CGU and transmit the vehicle data to an external device that is located away from the vehicle, the CGU and the RWTU being placed at different locations of the vehicle, the RWTU being located at a second location of the vehicle that is closer to each of one or more antennas than a first location of the CGU; and
in response to a detection of a loss or disruption of power transfer on the first power line, select a second power line of the redundant power lines to transfer power to the RWTU.
18 . The one or more non-transitory storage media of claim 17 , wherein the instructions, when executed by the one or more computing devices, further cause the one or more computing devices to:
monitor power delivered by the power supply on the first power line and, in response to a detection of the loss or the disruption of power transfer on the first power line, automatically select the second power line to transfer power to the RWTU.
19 . The one or more non-transitory storage media of claim 17 , wherein the instructions, when executed by the one or more computing devices, cause the one or more computing devices to monitor for the loss or the disruption of power transfer on the first power line between the power supply and the RWTU by monitoring at least one of current input, current outputs, voltage inputs, or voltage outputs at the power interface.
20 . The one or more non-transitory storage media of claim 17 , wherein the second location is underneath a roof of the vehicle.