Abnormal detection method and device for electrical equipment
A technology for equipment abnormality and detection methods, which is applied to measurement devices, testing of machine/structural components, computer parts, etc. The effect of deviation
Active Publication Date: 2021-01-29
HUAWEI TECH CO LTD
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Problems solved by technology
[0006] The embodiment of the present application provides a method and device for abnormality detection of motor equipment to solve the technical problem of time-consuming and low-efficiency abnormality detection existing in the prior art
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Embodiment Construction
[0049] In the following, part of the embodiment of the present application is used for explanation, so as to facilitate the understanding of those skilled in the art.
[0050] (1) Motor equipment: it can be household equipment including motor components, such as air conditioners, refrigerators, washing machines, etc., or industrial equipment including motor components, including industrial production equipment and various machine tools, such as lathes, Milling machines, grinding machines, etc., can also be other equipment with motor components.
[0051] (2) Edge gateway: The edge gateway is located at the edge of the sensor and control network at the bottom of the Internet of Things. It is the connection and control device of the Internet of Things terminal. It has an operating system and has powerful processing, storage, and memory capabilities. Gather and access all IoT terminal information on the user side, and provide Internet access services to IoT terminals; access to th...
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An abnormality detection method and device for motor equipment, which are used to improve the efficiency of abnormality detection. The edge gateway collects the signal to be detected of the motor equipment to be detected; the edge gateway extracts signal features from the signal to be detected, and constructs a signal feature vector; the edge gateway obtains the parameter matrix and the expectation and variance of the signal feature matrix, and the All row vectors in the signal feature matrix are subject to a Gaussian distribution with 0 and the parameter matrix as parameters; the edge gateway calculates according to the parameter matrix, the expectation and variance of the signal feature matrix, and the signal feature vector The abnormal distance of the signal to be detected, the abnormal distance of the signal to be detected is used to characterize the distance between the signal feature vector and all row vectors in the signal feature matrix; the edge gateway according to the signal to be detected to determine whether the motor equipment to be detected is abnormal.
Description
technical field [0001] The present application relates to the technical field of motors, and in particular to a method and device for abnormality detection of motor equipment. Background technique [0002] Generally, household appliances and industrial appliances including motor components are collectively referred to as motor-type appliances. Among them, the motor component refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction, and the motor component is an indispensable part of the motor equipment. For example, a compressor in an air conditioner is a common motor component. [0003] While the motor component has become an indispensable part of the above-mentioned equipment, it has also become one of the most frequent components of these equipment. How to detect the abnormality of these motors to avoid major failures has become a core issue of widespread concern in the industry...
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IPC IPC(8): G01M99/00G01H17/00G06K9/00G06K9/62
CPCG01M99/005G01H17/00G06F2218/08G06F2218/12G06F18/22
Inventor 孙振航吴俊包德伟叶浩楠程康
Owner HUAWEI TECH CO LTD