Managing the determination of a transfer function of a measurement sensor

Patent metadata

Field	Value
Publication number	US-11067604-B2
Application number	US-201715691379-A
Country	US
Kind code	B2
Filing date	Aug 30, 2017
Priority date	Aug 30, 2017
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

The present disclosure provides a system and method for the management of a monitor module in an electrical measurement system to determine an estimate of a transfer function of a first measurement sensor in the measurement system. The management comprises outputting a first control instruction for instructing the monitor module to determine an estimate of the transfer function of the first measurement sensor over a first individual run length of time, obtaining a first monitor result from the monitor module, the monitor result comprising the estimate of the transfer function of the first measurement sensor and generating a report based at least in part on the first monitor result.

First claim

The invention claimed is:

1. A manager apparatus for use in an electrical measurement system, wherein the electrical measurement system comprises a first measurement sensor for measuring a first electrical property and a monitor module configured to determine an estimate of a transfer function of the first measurement sensor, wherein the manager apparatus is configured to:
output a first control instruction for instructing the monitor module to determine an estimate of the transfer function of the first measurement sensor over a first individual run length of time;
obtain a first monitor result from the monitor module, the first monitor result comprising the estimate of the transfer function of the first measurement sensor and a separate certainty value indicative of an accuracy of the estimate of the transfer function of the first measurement sensor; and
generate a report based at least in part on the estimate of the transfer function and the separate certainty value of the first monitor result.

2. The manager apparatus of claim 1 , wherein the first control instruction is configured to control at least one of:
a start time of the first individual run length of time;
a time duration of the first individual run length of time;
a power mode to be used in obtaining of the first monitor result.

3. The manager apparatus of claim 1 , wherein the electrical measurement system further comprises a second measurement sensor for measuring a second electrical property, and wherein the monitor module is further configured to determine an estimate of a transfer function of the second measurement sensor,
wherein the manager apparatus is further configured to:
output a second control instruction for instructing the monitor module to determine an estimate of the transfer function of the second measurement sensor over a second individual run length of time;
obtain a second monitor result from the monitor module, the second monitor result comprising the estimate of the transfer function of the second measurement sensor; and
generate the report based at least in part on the first monitor result and the second monitor result.

4. The manager apparatus of claim 3 , wherein the second control instruction is configured to control at least one of:
a start time of the second individual run length of time;
a time duration of the second individual run length of time;
a power mode to be used in obtaining of the second monitor result.

5. The manager apparatus of claim 1 , further configured to:
output one or more further control instructions for instructing the monitor module to determine one or more further estimates of the transfer function of the first measurement sensor over one or more further individual run lengths of time;
obtain one or more further monitor results from the monitor module, each further monitor result comprising one of the one or more further estimates of the transfer function of the first measurement sensor; and
generate the report based at least in part on the first monitor result and the obtained one or more further monitor results.

6. The manager apparatus of claim 1 , further configured to determine the first control instruction based at least in part on static monitor settings.

7. The manager apparatus of claim 1 , further configured to determine the first control instruction based at least in part on one or more previously determined monitor results, wherein each of the one or more previously determined monitor results comprises an estimate of the transfer function of the first measurement sensor.

8. The manager apparatus of claim 7 , wherein each of the one or more previously determine monitor results further comprises a certainty value indicative of the accuracy of the estimate of the transfer function of the first measurement sensor.

9. The manager apparatus of claim 1 , wherein the manager apparatus is further configured to generate reports periodically.

10. The manager apparatus of claim 1 , further configured to:
determine whether or not the first monitor result meets an alert condition; and
if the first monitor result meets the alert condition, generate the report based at least in part on the first monitor result.

11. The manager apparatus of claim 10 , wherein the alert condition comprises an alert threshold, wherein if a difference between the estimate of the transfer function of the first measurement sensor and a benchmark transfer function value exceeds the alert threshold, the alert condition is met.

12. The manager apparatus of claim 1 , wherein the electrical measurement system further comprises a communications module for interfacing with a utility network entity over a communications network, and wherein the manager apparatus is further configured to:
output the report for communication to the utility network entity via the communications module.

13. The manager apparatus of claim 1 , wherein the electrical measurement system further comprises a communications module for interfacing with a utility network entity over a communications network, and wherein the manager apparatus is further configured to:
receive from the utility network entity, via the communications module, an on-demand report request; and
output the report for communication to the utility network entity via the communications module.

14. The manager apparatus of claim 13 , wherein the manager apparatus is further configured to generate the report based at least in part on the first monitor result after receiving from the utility network entity the on-demand report request.

15. The manager apparatus of claim 14 , wherein
the on-demand report request comprises an on demand report setting, and wherein
the manager apparatus is further configured to generate the report based at least in part on the first monitor result and the on demand report setting.

16. The manager apparatus of claim 1 , wherein a data size of the report is less than a combined data size of the first monitor results on which it is based.

17. The manager apparatus of claim 1 , wherein the report comprises the first monitor results on which it is based.

18. The manager apparatus of claim 1 , where the first individual run length is determined by comparing one or more previously determined certainty values corresponding to a respective one or more previously determined estimates of the transfer function of the first measurement sensor.

19. An electrical measurement system for measuring at least one electrical property, the electrical measurement system comprising:
a first measurement sensor for measuring a first electrical property;
a monitor module configured to determine an estimate of a transfer function of the first measurement sensor; and
a manager apparatus configured to:
output a first control instruction for instructing the monitor module to determine an estimate of the transfer function of the first measurement sensor over a first individual run length of time;
obtain a first monitor result from the monitor module, the first monitor result comprising the estimate of the transfer function of the first measurement sensor and a separate certainty value indicative of an accuracy of the estimate of the transfer function of the first measurement sensor; and
generate a report based at least in part on the estimate of the transfer function and the separate certainty value of the first monitor result.

20. The electrical measurement system of claim 19 , wherein the electrical measurement system is a utility meter.

Assignees

• Analog Devices International Unlimited Co

Inventors

• Ali Danesh Seyed Amir
• Stuart John

Classifications

• Y04S20/30

  Smart metering, e.g. specially adapted for remote reading · CPC title

• G01R11/25 Primary

  Arrangements for indicating or signalling faults · CPC title

• G08B19/00

  Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow · CPC title

• G01D21/02

  Measuring two or more variables by means not covered by a single other subclass · CPC title

• G01R35/04

  of instruments for measuring time integral of power or current · CPC title