Metering instrument operating state online evaluation method

Abstract

The invention provides a metering instrument operating state online evaluation method. The metering instrument operating state online evaluation method comprises the steps of: determining whether an operating state of a measuring instrument is normal; if so, determining whether abnormal data exists in instrument measurement data; if the abnormal data exists in instrument measurement data, correcting the abnormal data; subjecting the corrected abnormal data to statistical analysis according to a mass or energy balance relationship between superior and subordinate of a metering network to obtainan association between metering errors of instruments; solving the metering error association by using the least square method, and finding out metering errors of the instruments satisfying constraint conditions; and giving out evaluation of metering states of the instruments through comparing the magnitude between precision levels of the instruments and the calculated metering errors. The metering instrument operating state online evaluation method can evaluate the states of instruments and meters in the metering network online in real time, can satisfy rapid judgment on precision of variousmetering instruments in an industrial field, eliminates the trouble of disassembly and sending them for inspection, and is of important significance to the maintenance management and metering calibration of the metering instruments and meters.

Description

technical field [0001] The invention relates to the technical field of metering, in particular to an online evaluation method for the running state of a meter. Background technique [0002] There are many types of energy involved in industrial enterprises, and the system structure is complex. In order to systematically, comprehensively and effectively manage the status quo of the entire energy utilization, the enterprise conducts centralized and unified monitoring, control, scheduling and management of the production and operation of energy to ensure the smoothness of the production process. The energy supply reaches a balance, achieving the effect of saving energy and reducing consumption. To this end, based on information technology, industrial enterprises integrate management processes, production organizations, and process adjustments into one, real-time dynamic monitoring of the entire process of energy use, and implement centralized, information-based processes in ener...

AI Technical Summary

Problems solved by technology

[0009] For existing industrial enterprise metering instruments, especially the secondary and tertiary metering instruments for internal process control of enterprises need to be used for a long time and cannot be replaced. It is difficult to send third-party metering institutions for verification and calibration, and the existing technology is difficult to meet the energy management and control of industrial enterprises The technical problem of the system’s demand for measurement data accuracy, the present invention provides an online evaluation method for the operation status of the meter, which aims to improve the accuracy of the measurement value of the meter, and is applicable to the performance of the measurement status of the meter in the metering network. Judgment and online dynamic check

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