Title:
CURRENT MEASUREMENT METHOD, ELECTRIC TOOL, AND COMPUTER-READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/060755
Kind Code:
A1
Abstract:
A current measurement method and an electric tool. The method comprises: performing current sampling according to a time interval so as to acquire a plurality of current sampling values; sequentially storing the plurality of current sampling values into a storage queue with the length of N; determining the maximum value Imax and the minimum value Imin among the N current sampling values in the storage queue; and according to the difference between Imax and Imin, determining a current sudden change point. In the method, only the latest N current sampling values are stored in the storage queue, and the maximum value and the minimum value are compared so as to determine the current sudden change point; thus, current measurement can be achieved by using an existing chip, thereby improving the efficiency of current measurement and the accuracy of recognizing the current sudden change point.
Inventors:
LU CHUNLEI (CN)
JIN YAN (CN)
JIN YAN (CN)
Application Number:
PCT/CN2023/103420
Publication Date:
March 28, 2024
Filing Date:
June 28, 2023
Export Citation:
Assignee:
JIANGSU DONGCHENG TOOLS TECH CO LTD (CN)
International Classes:
G01R19/00
Foreign References:
| CN115219769A | 2022-10-21 | |||
| CN107589390A | 2018-01-16 | |||
| CN109375131A | 2019-02-22 | |||
| CN109471040A | 2019-03-15 | |||
| CN110470941A | 2019-11-19 | |||
| CN113960344A | 2022-01-21 | |||
| JP2007163174A | 2007-06-28 |
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