REDUNDANTLY POWERED AND DAISY CHAINED POWER OVER ETHERNET

摘要

According to one aspect, embodiments of the invention provide a method for providing power to a distributed sensor system, the method comprising providing power from at least one port of an interface unit to a first port of a first sensor unit of at least one of a plurality of sensor strings, powering up the first sensor unit, forwarding power from a second port of the first sensor unit to a first port of a second sensor unit of the at least one of the plurality of sensor strings, powering up the second sensor unit, monitoring the plurality of sensor strings for a fault condition, and in response to detecting a fault condition in a first sensor string of the plurality of sensor strings, providing power from a second one of the plurality of sensor strings to the first sensor string.

主权项

1. A method for providing power to a distributed sensor system, the distributed sensor system comprising an interface unit having a plurality of ports, and a plurality of sensor strings, each sensor string comprising a plurality of sensor units coupled in series to one of the plurality of ports of the interface unit, the method comprising:
providing power from at least one port of the interface unit to a first port of a first sensor unit of at least one of the plurality of sensor strings; powering up the first sensor unit; forwarding power from a second port of the first sensor unit to a first port of a second sensor unit of the at least one of the plurality of sensor strings; powering up the second sensor unit; monitoring the plurality of sensor strings for a fault condition; and in response to detecting a fault condition in a first sensor string of the plurality of sensor strings, providing power from a second one of the plurality of sensor strings to the first sensor string to provide power to at least one of the plurality of sensor units within the first sensor string.