CN108534869B - method for automatically comparing and correcting station differences of meter correcting machine - Google Patents
method for automatically comparing and correcting station differences of meter correcting machine Download PDFInfo
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- CN108534869B CN108534869B CN201810156310.0A CN201810156310A CN108534869B CN 108534869 B CN108534869 B CN 108534869B CN 201810156310 A CN201810156310 A CN 201810156310A CN 108534869 B CN108534869 B CN 108534869B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
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Abstract
The invention provides a method for automatically comparing and correcting station differences of meter correcting machines, which comprises the steps of placing a water meter which is verified by any meter correcting machine into a specified area of a production line, and reading the parameters of the water meter which is verified by the meter correcting machine before triggering; storing the read water meter parameters to the specified position of the software; at each retest, at least one water meter is randomly extracted from any appointed area of the production line, the water meter is put into other meter checking machines for retest, and the parameters of the retested water meter are automatically uploaded to other appointed positions of the software; comparing the re-detected water meter parameters with the water meter parameters read by the software to obtain comparison data of various water meter parameters among all meter calibrating machines; and randomly selecting one meter correcting machine as a standard station, obtaining the difference value between the standard station and other meter correcting machines from the comparison data, and automatically correcting the station difference of other meter correcting machines by using the difference value. The method can automatically and timely correct the station difference and greatly improve the efficiency.
Description
Technical Field
the invention relates to the field of meter calibration, in particular to a method for automatically comparing and correcting station differences by a meter calibration machine.
Background
At present, when a water meter is produced, a plurality of meter calibrating machines are arranged on two sides of a production line, and before the meter calibrating machines are used for calibrating meters, the meter calibrating machines are generally required to be calibrated according to the difference. In the prior art, when the platform difference is checked, a stable water meter is taken to a meter checking machine to be checked for repeated testing, and an average value is obtained; then, the water meter is taken to a standard station to be tested repeatedly, and an average value is obtained; finally, the table calibrating machine to be calibrated is compared with the average value obtained by the standard station, and if an error exists, the station difference is manually modified. However, the conventional stage matching difference method has the following defects: one machine is needed for comparison and modification, so that time and labor are wasted, the efficiency is low, and normal production is delayed; meanwhile, the station difference cannot be corrected in time, so that an actual checking result may have errors.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for automatically comparing and correcting station differences of meter checking machines, which can automatically and timely correct station differences, greatly improve efficiency and ensure accurate checking results of each meter checking machine.
The invention is realized by the following steps: a method for automatically comparing and correcting station differences of a meter calibrating machine comprises the following steps:
Step S1, after a string of water meters is verified by any meter calibrating machine, the string of water meters is placed in a designated area on a production line, and meanwhile, triggering software reads the parameters of the water meters verified by the meter calibrating machine before triggering;
Step S2, storing the read water meter parameters to the specified position of the software;
Step S3, at least one water meter is randomly extracted from any appointed area on the production line during each retest, the extracted water meter is placed in other meter checking machines for retest, and the retest water meter parameters are automatically uploaded to other appointed positions of the software;
Step S4, comparing the re-detected water meter parameters with the water meter parameters read by the software, thereby obtaining comparison data of various water meter parameters among all meter calibrating machines, and storing the comparison data of various water meter parameters;
step S5, selecting one meter checking machine as standard station, obtaining the difference between the standard station and other meter checking machines from the comparison data of various water meter parameters, and using the difference to automatically correct the station difference of other meter checking machines.
Further, in step S1, the step of reading the water meter parameters verified by the meter calibrator before triggering by the triggering software includes: and the triggering software reads the water meter parameters verified by the meter calibrating machine within 8-10 minutes before triggering.
further, in step S1, the read water meter parameters at least include a meter number, a flow error of three flow points, a start flow, and pressure test parameters.
further, in the step S3, the step of placing the extracted water meter into another meter calibrating machine for rechecking specifically includes: before checking, firstly, checking codes are input into other checking machines to trigger to enter a comparison and storage mode, then the number of the extracted water meter is input into the other checking machines, and the extracted water meter is placed into the other checking machines to be rechecked, so that rechecked water meter parameters are obtained.
The invention has the following advantages: the automatic correction of the station difference can be realized without comparing and modifying one station, so that the time and labor are saved, the efficiency is high, and the accuracy of the check result of each meter checking machine can be ensured.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a flowchart illustrating an implementation of a method for automatically comparing and correcting a station error of a meter calibrating machine according to the present invention.
Detailed Description
Referring to fig. 1, a preferred embodiment of a method for automatically comparing and correcting station differences by a meter calibrating machine according to the present invention includes the following steps:
step S1, after a string of water meters is verified by any meter calibrating machine, the string of water meters is placed in a designated area on a production line, and meanwhile, triggering software reads the parameters of the water meters verified by the meter calibrating machine before triggering;
In step S1, the step of reading the water meter parameters verified by the meter corrector before triggering by the triggering software includes: and the triggering software reads the water meter parameters verified by the meter calibrating machine within 8-10 minutes before triggering. Because the time for the meter calibrating machine to calibrate the water meter of the whole string is about 6-8 minutes approximately, the read time is set to be 8-10 minutes before triggering in order to read the water meter parameters of the whole string of water meters conveniently. Of course, the time range set by the present invention is only used for obtaining the exact implementation effect, and in the specific implementation, the reading time can be changed according to the actual requirement.
In step S1, the read water meter parameters at least include a meter number, a flow error of three flow points (three flow points Q1-Q3), a start flow rate, and pressure test parameters. In the concrete implementation, other water meter parameters can be added according to the actual requirements.
In practical implementation, 3 meters are usually arranged on both sides of the pipeline, and their numbers are assumed to be A1-A3 and B1-B3, respectively, and each meter is correspondingly provided with a button for triggering software to read data. In the process of calibrating the meter, when a string of water meters (a string of water meters generally has 8 meters) is calibrated by the meter calibrating machine A1, the calibrated string of water meters is placed in a designated area on the production line, and a button of the meter calibrating machine A1 is pressed, so that the software can be triggered to read the parameters of the water meters calibrated by the meter calibrating machine before being triggered.
Step S2, storing the read water meter parameters to the specified position of the software;
Step S3, at least one water meter is randomly extracted from any appointed area on the production line during each retest, the extracted water meter is placed in other meter checking machines for retest, and the retest water meter parameters are automatically uploaded to other appointed positions of the software;
In step S3, the step of placing the extracted water meter into another meter calibrating machine for retest specifically includes: before checking, firstly, a check code is input into other meter checking machines (for example, letter J is used as the check code) to trigger to enter a comparison and storage mode, then, the meter number of the extracted water meter is input into the other meter checking machines, and the extracted water meter is placed into the other meter checking machines to be checked again, so that the parameters of the water meter to be checked again are obtained. The reason why the comparison and save mode is triggered is to avoid overwriting the previous data, so as to facilitate the data comparison in the following.
Step S4, comparing the re-detected water meter parameters with the water meter parameters read by the software, thereby obtaining comparison data of various water meter parameters among all meter calibrating machines, and storing the comparison data of various water meter parameters; taking the meter calibrating machine a1 as an example, after multiple comparisons, comparison data of various water meter parameters of the meter calibrating machines a1 and a2, a1 and B1, a1 and B3, etc. can be obtained.
Step S5, selecting one meter checking machine as standard station, obtaining the difference between the standard station and other meter checking machines from the comparison data of various water meter parameters, and using the difference to automatically correct the station difference of other meter checking machines. For example, taking the flow error between meter corrector a1 and B2 as an example, and setting a1 as a standard station, where the flow point error of Q2 of meter corrector a1 is 1%, the flow point error of Q2 of meter corrector B2 is 0.5%, and the difference is 1% -0.5% — 0.5%, then 0.5% is added to the flow point error of Q2 of meter corrector B2 to correct the station difference. Therefore, when the station difference is specifically operated, the checking personnel only need to maintain the accuracy of the standard station position, and other table checking machines can automatically correct the station difference in time by taking the standard station position as a reference without comparing and modifying one station.
In summary, the invention has the following advantages: the automatic correction of the station difference can be realized without comparing and modifying one station, so that the time and labor are saved, the efficiency is high, and the accuracy of the check result of each meter checking machine can be ensured.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (4)
1. a method for automatically comparing and correcting station differences of a meter calibrating machine is characterized by comprising the following steps: the method comprises the following steps:
step S1, after a string of water meters is verified by any meter calibrating machine, the string of water meters is placed in a designated area on a production line, and meanwhile, triggering software reads the parameters of the water meters verified by the meter calibrating machine before triggering;
step S2, storing the read water meter parameters to the specified position of the software;
step S3, at least one water meter is randomly extracted from any appointed area on the production line during each retest, the extracted water meter is placed in other meter checking machines for retest, and the retest water meter parameters are automatically uploaded to other appointed positions of the software;
Step S4, comparing the re-detected water meter parameters with the water meter parameters read by the software, thereby obtaining comparison data of various water meter parameters among all meter calibrating machines, and storing the comparison data of various water meter parameters;
and step S5, selecting one meter correcting machine as a standard station position, wherein the standard station position is an accurate meter correcting machine maintained by a checking staff, obtaining the difference value between the standard station position and other meter correcting machines from the comparison data of various water meter parameters, and automatically correcting the station difference of other meter correcting machines by using the difference value.
2. the method for automatically comparing and correcting the station error of the meter calibrating machine according to claim 1, wherein the method comprises the following steps: in step S1, the step of reading the water meter parameters verified by the meter corrector before triggering by the triggering software includes: and the triggering software reads the water meter parameters verified by the meter calibrating machine within 8-10 minutes before triggering.
3. the method for automatically comparing and correcting the station error of the meter calibrating machine according to claim 1, wherein the method comprises the following steps: in step S1, the read water meter parameters at least include a meter number, a flow error of three flow points, a start flow, and pressure test parameters.
4. The method for automatically comparing and correcting the station error of the meter calibrating machine according to claim 1, wherein the method comprises the following steps: in step S3, the step of placing the extracted water meter into another meter calibrating machine for retest specifically includes: before checking, firstly, checking codes are input into other checking machines to trigger to enter a comparison and storage mode, then the number of the extracted water meter is input into the other checking machines, and the extracted water meter is placed into the other checking machines to be rechecked, so that rechecked water meter parameters are obtained.
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| CN109632054A (en) * | 2018-12-11 | 2019-04-16 | 北京沃尔斯特新技术有限公司 | A kind of method of big data water weight method evaluation water meter actual metered error |
| CN111998918B (en) * | 2019-05-27 | 2023-04-25 | 深圳电蚂蚁数据技术有限公司 | Error correction method, error correction device and flow sensing system |
| CN111999691B (en) * | 2019-05-27 | 2023-06-27 | 深圳电蚂蚁数据技术有限公司 | Error calibration method and error calibration device for metering sensor device |
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