公开(公告)号：US11099926B2

公开(公告)日：2021-08-24

申请号：US16383740

申请日：2019-04-15

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Rachel Callison ,  Robert Brodeur ,  Robert Tappan

IPC: G06F11/00 ,  G06F11/07 ,  G06F11/30 ,  G06F16/17 ,  H04Q9/02 ,  G06F16/2458

Abstract: Systems and methods described herein leverage dependence relationships between sensor readings to facilitate rapid detection of erroneous sensor readings and rapid response times when accurate sensor readings indicate events that call for remedial action. When a target sensor reports a questionable sensor reading, systems described herein can query additional sensors whose readings share expected dependence relationships with readings from the target sensor. Systems described herein determine whether the questionable sensor reading is trustworthy based on the expected dependence relationships and additional sensor readings received from the additional sensors. If the questionable sensor reading is trustworthy, the system can trigger appropriate remedial action and increase query rates for the additional sensors (and the target sensor) to monitor an underlying event more closely. If the questionable reading is not trustworthy, the system can trigger appropriate remedial action (e.g., by deactivating the sensor or sending an alert to an administrator).

公开(公告)号：US20200327009A1

公开(公告)日：2020-10-15

申请号：US16383740

申请日：2019-04-15

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Rachel Callison ,  Robert Brodeur ,  Robert Tappan

IPC: G06F11/07 ,  G06F11/30 ,  G06F16/2458 ,  G06F16/17 ,  H04Q9/02

Abstract: Systems and methods described herein leverage dependence relationships between sensor readings to facilitate rapid detection of erroneous sensor readings and rapid response times when accurate sensor readings indicate events that call for remedial action. When a target sensor reports a questionable sensor reading, systems described herein can query additional sensors whose readings share expected dependence relationships with readings from the target sensor. Systems described herein determine whether the questionable sensor reading is trustworthy based on the expected dependence relationships and additional sensor readings received from the additional sensors. If the questionable sensor reading is trustworthy, the system can trigger appropriate remedial action and increase query rates for the additional sensors (and the target sensor) to monitor an underlying event more closely. If the questionable reading is not trustworthy, the system can trigger appropriate remedial action (e.g., by deactivating the sensor or sending an alert to an administrator).

公开(公告)号：US10521379B1

公开(公告)日：2019-12-31

申请号：US16131002

申请日：2018-09-13

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Rachel Callison ,  Robert R Brodeur ,  Robert Tappan

IPC: G06F13/36 ,  G06F13/362 ,  G06F1/20

Abstract: Systems and methods described herein reduce contention on shared buses through which multiple sensors send sensor readings to a computing destination by allowing different query rates for each sensor and dynamically adjusting the query rate for each sensor based on the readings that sensor reports. A first query is sent to a sensor via a bus to request a current sensor reading from the sensor. In response to the first query, the sensor sends the current sensor reading via a bus. A function of the current sensor reading, a predefined time range, and a predefined reading-value range is evaluated to determine a time interval between the first query and a second query to be sent to the sensor. When the amount of time elapsed since the first query was sent matches the time interval, the second query is sent to the sensor via the bus to request an updated sensor reading.