公开(公告)号：US11888306B1

公开(公告)日：2024-01-30

申请号：US17660366

申请日：2022-04-22

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Cyril Arokiaraj Arool Emmanuel ,  David Buuck ,  Behrad Aria ,  Mark Armin Patel

IPC: H02H3/08 ,  H02H5/00 ,  G01J1/42

CPC classification number: H02H3/08 ,  G01J1/429 ,  H02H5/00

Abstract: Electrical faults pose a significant risk to people and property. A system is described that deploys instrument devices with sensors to detect faults within an alternating current (AC) electrical distribution system. These sensors may detect electrical, optical, thermal, acoustic, radio frequency, and other phenomena associated with a fault. Data from different sensors may also be used to distinguish fault and non-fault status. Users are notified if a fault status is detected. Mitigating actions may be automatically taken, such as de-energizing a branch circuit associated with the fault status. Information about non-fault status may also be used to mitigate nuisance circuit breaker interruptions. In some situations, a nuisance interruption of a breaker may be automatically reset if all instrument devices connected to the breaker reported non-fault status before the interruption.

公开(公告)号：US11982563B1

公开(公告)日：2024-05-14

申请号：US17035409

申请日：2020-09-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Andrew William Staats ,  Charles Robert Watson ,  David Buuck ,  Dave Jonathan Lefkow ,  Paul Ellis

IPC: G01G23/37 ,  G06F1/00 ,  G08C17/02

CPC classification number: G01G23/3707 ,  G01G23/3735 ,  G06F1/00 ,  G08C17/02

Abstract: An apparatus powered by batteries may include a first processor and a second processor. The first processor may consume more electrical power than the second processor. The second processor acquires data from one or more sensors. At a predetermined time or other trigger, the second processor activates the first processor that is then used to send the acquired data to an external device. For example, items are stowed on the apparatus that includes weight sensors. The second processor awakens hourly, acquires weight data indicative of the weight of items stowed on the apparatus, and returns to a sleep mode. After 24 hours of acquiring weight data, the second processor activates the first processor to send the accumulated weight data to an external device, such as a server, using a network interface. Power consumption is substantially reduced, allowing the apparatus to operate without external power for extended periods of times.