	US 11,947,624 B2
	Method and system for analyzing error of measurement domain based on single load jump, and storage medium
Hongshan Chang, Beijing (CN); and Guang He, Beijing (CN)
Assigned to BEIJING TENHE ELECTRONIC TECHNOLOGY CO., LTD., Beijing (CN)
Appl. No. 17/794,257
Filed by BEIJING TENHE ELECTRONIC TECHNOLOGY CO. , LTD., Beijing (CN)
PCT Filed Nov. 23, 2020, PCT No. PCT/CN2020/130780 § 371(c)(1), (2) Date Jul. 21, 2022, PCT Pub. No. WO2021/147501, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 202010069718.1 (CN), filed on Jan. 21, 2020.
Prior Publication US 2023/0074607 A1, Mar. 9, 2023
Int. Cl. G06F 17/18 (2006.01); G01R 35/04 (2006.01)

CPC G06F 17/18 (2013.01) [G01R 35/04 (2013.01)]

7 Claims

1. A method for analyzing an error of a measurement domain based on a single load jump, wherein the method is performed by a system comprising a computer, a memory, and a computer program stored within the memory, and the method comprising the following steps:

step S1: measuring 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;

step S2: when determining that the single load jump occurs in the measurement domain, obtaining a load measurement difference of the master meter before and after the single load jump and a load measurement difference of a jumping sub-meter before and after the single load jump, and calculating an error deviation degree of the jumping sub-meter relative to the master meter based on the load measurement difference of the master meter before and after the single load jump and the load measurement difference of the jumping sub-meter before and after the single load jump, wherein the error deviation degree of the jumping sub-meter relative to the master meter is calculated according to the following formula:

(ε_ΔPmaster−ε_ΔPk)/ΔP_{measured for master}=(ΔP_{measured for meter}−ΔP_{measured for k})/ΔP_{measured for master}

wherein (ε_ΔPmaster−ε_ΔPk) is defined as an error deviation value between the master meter and a jumping sub-meter k, (ε_ΔPmaster−ε_ΔPk)/ΔP_{measured for master}is defined as an error deviation degree of the jumping sub-meter k relative to the master meter, ΔP_{measured for master}represents the load measurement difference of the master meter before and after the single load jump, ΔP_{measured 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;

step S3: repeating step S2 until statistical data of error deviation degrees of all the sub-meters relative to the master meter is formed; and

step S4: providing an error analysis on the whole measurement domain based on the statistical data and presenting, by the computer, faulty jumping sub-meters and an error state of the whole measurement domain.