Method and device for determining electromagnetic signal of fault
An electromagnetic signal and determination method technology, which is applied in the field of electromagnetic signals, can solve problems such as the inability to determine the electromagnetic signals of contactors or circuit breakers, and the difficulty in obtaining fault data for comparative experiments.
Active Publication Date: 2022-03-04
TSINGHUA UNIV
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[0003]
However, most contactors or circuit breakers rarely fail under normal operating conditions. Therefore, it is difficult to obtain a sufficient number of fault data for comparative experiments, which makes it impossible to determine whether the electromagnetic signals of contactors or circuit breakers are for fault signal
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[0061] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0062] It should be noted that the terms "include" and "have" and any variations thereof in the embodiments of the present invention and the drawings are intended to cover non-exclusive inclusion. For example, a process, method, network, product, or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally further includes For other steps or units in...
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The invention discloses a method and a device for determining an electromagnetic signal of a fault. According to the method, for each component attribute in a processed to-be-detected electromagnetic signal, a target kurtosis index corresponding to the component attribute is obtained, and whether the target kurtosis index is within a kurtosis index range corresponding to the component attribute is judged; the kurtosis index range corresponding to each component attribute is that kurtosis index calculation is carried out on each component attribute in multiple groups of fault-free electromagnetic signals of the contactor or the circuit breaker, W inspection is carried out based on a calculation result, and when an inspection result meets a preset requirement, the kurtosis index range corresponding to each component attribute is determined according to a kurtosis index calculation result; and if the target kurtosis indexes corresponding to not all the component attributes are within the corresponding kurtosis index ranges, determining that the to-be-detected electromagnetic signal is a fault signal. According to the method, the to-be-detected electromagnetic signal is calculated by adopting kurtosis index calculation and W detection, and whether the to-be-detected electromagnetic signal is a fault signal or not is determined.
Description
technical field [0001] The present invention relates to the technical field of electromagnetic signals, in particular to a method and device for determining a faulty electromagnetic signal. Background technique [0002] At present, a certain number of fault data of contactors or circuit breakers when faults occur are required to conduct comparative experiments with normal data when no faults occur, so as to determine whether the electromagnetic signals of contactors or circuit breakers are fault-free. When the electromagnetic signal is faulty, maintenance can be carried out in time to avoid accidents. [0003] However, most contactors or circuit breakers rarely fail under normal operating conditions. Therefore, it is difficult to obtain a sufficient number of fault data for comparative experiments, which makes it impossible to determine whether the electromagnetic signals of contactors or circuit breakers are as a fault signal. Contents of the invention [0004] The inve...
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IPC IPC(8): G01R31/327
CPCG01R31/327Y04S10/52
Inventor 邓仰东
Owner TSINGHUA UNIV