Smart gas meter online comprehensive error calibration method

Abstract

The invention relates to a smart gas meter online comprehensive error calibration method. The smart gas meter online comprehensive error calibration method includes: (1) arranging a smart gas meter cluster to form a tree topological structure, and acquiring a flow conservation basic model of the smart gas meter cluster; (2) acquiring a flow conservation algorithm model; (3) frequently recording flow data of the smart gas meter cluster in operation, and recording an operation condition of the smart gas meter cluster; (4) performing equivalent conversion on the flow data; (5) calculating a current intermediate error; (6) performing uncertainty evaluation; and (7) calculating and acquiring a comprehensive error. The objective of the invention is that in actual operation, in the operation condition beyond the influence quantity of a laboratory condition, initial quantization is performed, and then data of measurement meters in online operation in different conditions is used as a usable value to perform calculation, and accurate calibration in a non- experiment condition can be achieved; a whole data sample thinking manner is used to mine mass computer data of a user electricity consumption information acquisition system without using external standard instruments; and the cost is reduced, and the efficiency is improved.

Description

Technical field [0001] The invention belongs to the field of gas measurement, in particular to an online comprehensive error calibration method for an intelligent gas meter. Background technique [0002] The so-called comprehensive error of the meter refers to the relative error value of the meter under the specified test conditions (including the range of influence, environmental conditions, test wiring, etc.), which reflects the basic accuracy of the water meter measurement. However, it is not the true error of the water meter in use. Because the conditions of use specified by the water meter are wider than the conditions for measuring the basic error. [0003] The accuracy of the measuring device in operation has always been a hot issue that residents and suppliers are most concerned about. At present, statistical analysis methods or the addition of online testing equipment are usually used to realize the supervision and evaluation of the operating errors of smart water meters...

AI Technical Summary

Problems solved by technology

Although the statistical analysis method has changed the single-phase smart gas meters used by residents in the past from regular rotation to random inspection, it is still the control of the overall batch; adding online monitoring equipment will definitely increase the purchase and maintenance costs of the enterprise. High maintenance costs and limitations

[0005] After searching, no published patent documents of similar technologies were found

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