Method for testing the error of gas indication value

Abstract

The invention provides a gas indication value error verification method, which relates to the field of smart meters. The gas indication value error verification method uses the actual volume verification device to detect the actual volume of the passing gas; uses a target sensing device to detect the target to be detected, and generates a pulse signal when the target to be detected is detected, and transmits the pulse signal to a controller ;Use the controller to calculate the flow point indication error based on the number of times the first pulse signal is received, the preset rotation volume, and the actual volume of the gas passing through. The gas indication value error verification method saves verification time, improves verification accuracy and verification sensitivity, reduces energy consumption, realizes energy saving and emission reduction, and can also improve the enterprise's own gas meter verification technology to adapt to the economic situation of rapid development of the industry , to improve the competitiveness of the enterprise itself.

Description

technical field [0001] The invention relates to the field of smart meters, in particular to a method for checking errors of gas indication values. Background technique [0002] People's daily cooking fuel has changed from firewood, coal and other conventional energy resources that waste resources and pollute heavily to natural gas and coal gas. Outside the gas meter, you can only see a scroll wheel with numbers in the small glass window. There are also seven digits on the scroll wheel. The first four digits of the decimal point are black, and the last three digits are red. Households with gas can easily know how much gas they use, so that they can pay according to the cubic meters of gas consumed every month. The indication error of the gas meter refers to the percentage of the difference between the volume displayed by the gas meter and the actual volume passing through the gas meter and the actual volume passing through the gas meter, which is an important indicator for e...

AI Technical Summary

Problems solved by technology

The metering cycle of the membrane gas meter movement is driven by two reciprocating diaphragms, and the double-rocker single-crank mechanism pushes the valve cover of the distribution valve to rotate at a constant speed. When the mechanism completes a rotation At this time, the intake and exhaust of a rotary volume is completed. With the continuous increase of natural gas consumption and the improvement of large-scale infrastructure, the gas meter market is expanding rapidly, and the current lack of error verification of gas indication values ​​has gradually become prominent. , especially the verification of the minimum flow point, it takes a long time, the accuracy is not high, and the verification efficiency is low, which restricts the production efficiency of the gas meter

Therefore, the time-consuming and low accuracy of the indication error verification are the main problems, and the accuracy and efficiency of the verification need to be improved

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