Drift diagnosis method and device of sensor, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a drift diagnosis method and device of a sensor, electronic equipment and a storage medium, and relates to the technical field of air conditioners. The method comprises the following steps: respectively acquiring a true value of a to-be-diagnosed sensor and a pre-established initial virtual value of a virtual sensor corresponding to the to-be-diagnosed sensor; calculating an error between the true value and the initial virtual value; judging whether the error is greater than a preset threshold value or not; if yes, taking the true value and the initial virtual value as input, and calculating an associated virtual value of an associated sensor related to the to-be-diagnosed sensor; and judging whether the associated virtual value is greater than a sensitivity error or not so as to determine whether the sensor to be diagnosed and the characteristic parameters of the corresponding part drift or not, and providing a general judgment method for the drift of the characteristic parameters of the sensor and the part. Therefore, the problem that use is limited due to the fact that a general method cannot be used for judgment in an existing method is solved.

Description

technical field [0001] The present application relates to the technical field of air conditioning, in particular, to a sensor drift diagnosis method, device, electronic equipment and storage medium. Background technique [0002] Due to the aging of the sensor and the influence of the installation environment, the phenomenon of sensor drift generally exists in engineering systems. The current sensor drift judgment method is mainly judged by the relationship between two sensors under special working conditions, which leads to different judgment methods for different sensors, which obviously has great limitations. [0003] In addition, the virtual sensor values ​​obtained through physical modeling often require that the characteristic parameters of related parts be relatively accurate, but due to individual differences in parts or the attenuation of parts during operation, there is a large difference between the characteristic parameters and the initial modeling values. discre...

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Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a sensor drift diagnosis method, device, electronic equipment, and storage medium, and to provide a general judgment method for sensor and component characteristic parameter drift, so as to solve the problem that the existing methods cannot use general methods for judgment The problem of limited use caused by

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