Patent ID: 11947624
Assignee: BEIJING TENAFE ELECTRONIC TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. A system for analyzing an error of a measurement domain based on a single load jump, comprising:
a computer, a memory, and a computer program stored within the memory, wherein when the computer program is executed by the computer, causes the computer to:
measure loads of a master meter and sub-meters in the measurement domain to obtain load data, wherein the measurement domain is a meter box, a branch, or a whole transformer area, and wherein the master meter and the sub-meters each comprises a carrier module and a measurement core, the carrier module of the master meter and the sub-meters forms a carrier network and the carrier module of the master meter and the sub-meters maintains a high-precision time synchronization based on a reference time of the carrier network, and the measurement core of the master meter and the sub-meters measures the loads based on timing and commends of the carrier module;
determine whether the single load jump occurs in the measurement domain, calculate an error deviation degree of a jumping sub-meter relative to the master meter when determining that the single load jump occurs in the measurement domain, and form statistical data of error deviation degrees of all the sub-meters relative to the master meter, wherein the error deviation degree of the jumping sub-meter relative to the master meter is calculated according to the following formula:

(εΔPmaster−εΔPk)/ΔPmeasured for master=(ΔPmeasured for meter−ΔPmeasured for k)/ΔPmeasured for master 

wherein (εΔPmaster−εΔPk) is defined as an error deviation value between the master meter and a jumping sub-meter k, (εΔPmaster−εΔPk)/ΔPmeasured for master is defined as an error deviation degree of the jumping sub-meter k relative to the master meter, ΔPmeasured for master represents the load measurement difference of the master meter before and after the single load jump, ΔPmeasured for k represents a load measurement difference of the jumping sub-meter k before and after the single load jump, and calculation is performed when a sum of load differences of other sub-meters approaches zero; and
provide an error analysis on the whole measurement domain based on the statistical data and, present, by the computer, faulty jumping sub-meters and an error state of the whole measurement domain.