A Method for On-Line Evaluation of Metering Instrument Operation Status

Abstract

The invention provides an online evaluation method for the running state of a measuring instrument, comprising the following steps: judging whether the working state of the measuring meter is normal; if the working state of the measuring meter is normal, judging whether there is abnormal data in the measurement data of the meter; if there is abnormal data, correcting; According to the quality or energy balance relationship between the upper and lower levels of the metering network, statistically analyze the corrected abnormal data to obtain the correlation between the measurement errors of each meter; use the least square method to solve the measurement error correlation to find out the constraints that meet the constraints The measurement error of each meter; by comparing the accuracy level of each meter with the size of the measurement error, the evaluation of the measurement status of each meter is given. The present invention can evaluate the state of the instruments and meters in the metering network in real time online, and can quickly judge the accuracy of various metering meters on the industrial site, avoiding the trouble of disassembly and inspection, and has great advantages in the maintenance management and metering calibration of metering instruments and meters important meaning.

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

Images