Method for dynamically eliminating interference of plum blossom pointer

Abstract

The invention discloses a method for dynamically eliminating the interference of a plum blossom pointer. The method comprises the steps of S1, extracting N laser pulses before meter calibration at first, and calculating the average time of all the laser pulses; S2, performing the meter calibration operation, taking the average time of all the laser pulses before the meter calibration as dynamic pulse calibration time, obtaining the time of each laser pulse in the first second after the meter calibration, comparing the time with the dynamic pulse calibration time, and correcting the laser pulses according to a comparison result; S3, with the last laser pulse of the last second as a starting point, extracting the N laser pulses back, and calculating the average time of all the laser pulses in the last second; S4, taking the average time of all the laser pulses in the last second as dynamic pulse calibration time, obtaining the time of each laser pulse in the next second, comparing the time with the dynamic pulse calibration time, and correcting the laser pulses according to a comparison result; S5, judging whether or not the meter calibration operation is completed, if not, executingthe third step, and if yes, ending the process. By means of the method, the interference caused to the meter calibration by the operation of holding a water meter with the hands or the occurrence ofair bubbles can be dynamically eliminated.

Description

technical field [0001] The invention relates to the field of water meter calibration, in particular to a method for dynamically eliminating interference of plum blossom pointers. Background technique [0002] In the process of using the automatic meter calibration machine to calibrate the meter, because it is difficult to fill the water meter with water, there will be air bubbles in the place where there is no water, and a large part of the air bubbles will adhere to the plum blossom of the water meter On the pointer, this causes the laser to scatter when reading the pulse number, and leads to inaccurate reading of the pulse number. In addition, in the process of meter calibration, the calibration personnel need to take down the calibrated water meter by hand, and in the process of taking it by hand, the hand will inevitably block the laser and cause the laser to miss the number of pulses. Since the above two reasons will interfere with the accuracy of the meter calibration...

AI Technical Summary

Problems solved by technology

[0002] In the process of using the automatic meter calibration machine to calibrate the meter, because it is difficult to fill the water meter with water, there will be air bubbles in the place where there is no water, and a large part of the air bubbles will adhere to the plum blossom of the water meter On the pointer, this causes the laser to scatter when reading the pulse number, and leads to inaccurate reading of the pulse number

In addition, in the process of calibrating the meter, it is necessary for the calibration personnel to take down the calibrated water meter by hand, and in the process of taking it by hand, the hand will inevitably block the laser and cause the laser to miss the number of pulses.

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