CN107643116B - Water meter rotating speed calibration method, system and device - Google Patents
Water meter rotating speed calibration method, system and device Download PDFInfo
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- CN107643116B CN107643116B CN201710825917.9A CN201710825917A CN107643116B CN 107643116 B CN107643116 B CN 107643116B CN 201710825917 A CN201710825917 A CN 201710825917A CN 107643116 B CN107643116 B CN 107643116B
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Abstract
The invention discloses a method, a system and a device for calibrating the rotating speed of a pointer of a water meter.A three light sources are arranged above the water meter, and the three light sources simultaneously irradiate a black or red plum-blossom pointer of the same water meter; initializing the number of effective pulses to 0; simultaneously collecting voltage pulse signals of the three light sources; if any one path of voltage pulse signal has only two rising edges or two falling edges in one period T, adding 1 to the value of the number of the effective pulses, and counting the total number D of the number of the effective pulses in the time period T1-T2; calculating the rotation speed V of the water meter pointer by using the following formula: v = D/(t2-t 1); wherein T2-T1 is more than or equal to T. The invention can effectively prevent the false pulse caused by the bubble or the shake or other interference at the pointer of the water meter, has accurate counting, simple method and easy realization.
Description
Technical Field
The invention relates to a method and a device for calibrating the rotating speed of a water meter pointer.
Background
The existing method for calibrating the rotating speed of the water meter pointer adopts a light source to irradiate a black plum-blossom pointer or a red pointer, and when bubbles or jitter or other interference exists at the water meter pointer, false pulses are easily generated, so that inaccurate counting is caused.
Disclosure of Invention
The invention aims to solve the technical problem that aiming at the defects of the prior art, the invention provides the method, the system and the device for calibrating the rotating speed of the water meter pointer, which can prevent the error pulse caused by bubbles or jitter or other interference at the water meter pointer and accurately count.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for calibrating the rotating speed of a water meter pointer comprises the following steps:
1) three light sources are arranged above the water meter, and the three light sources simultaneously irradiate the black or red plum-blossom-shaped pointer of the same water meter; initializing the number of effective pulses to 0;
2) simultaneously collecting voltage pulse signals of the three light sources;
3) if any one path of voltage pulse signal has only two rising edges or two falling edges in one period T, adding 1 to the value of the number of the effective pulses, and counting the total number D of the number of the effective pulses in the time period T1-T2;
4) calculating the rotation speed V of the water meter pointer by using the following formula: v = D/(t2-t 1); wherein T2-T1 is more than or equal to T.
Corresponding to the method, the invention also provides a system for calibrating the rotating speed of the pointer of the water meter, which comprises the following steps:
an acquisition module: the device is used for collecting voltage pulse signals of three light sources arranged above the water meter; wherein the three light sources simultaneously irradiate the black or red plum-blossom-shaped pointer of the same water meter;
a counting module: the method is used for counting the number of the effective pulses in a period T, when any one path of voltage pulse signal has only two rising edges or two falling edges, adding 1 to the value of the number of the effective pulses, and counting the total number D of the number of the effective pulses in a time period T1-T2;
a calculation module: for calculating the speed of rotation V of the meter's pointer using: v = D/(t2-t 1); wherein T2-T1 is more than or equal to T.
Correspondingly, the invention also provides a device for realizing the method for calibrating the rotating speed of the water meter pointer, which comprises the following steps:
the three light sources are arranged above each water meter and simultaneously irradiate black or red plum-blossom-shaped pointers of the same water meter;
the acquisition chip is used for acquiring voltage pulse signals of the three light sources corresponding to each water meter; and
and the communication module is connected with the acquisition chip.
The acquisition chip comprises:
and six counters, wherein three counters record the number of rising edges of the voltage pulse signals, one counter records the effective pulse number of each path of voltage pulse signals, and the other two counters record the calibration starting time and the calibration ending time respectively.
Compared with the prior art, the invention has the beneficial effects that: the invention can effectively prevent the false pulse caused by the bubble or the shake or other interference at the pointer of the water meter, has accurate counting, simple method and easy realization.
Drawings
FIG. 1 is a schematic diagram of the method of the present invention.
Detailed Description
As shown in fig. 1, taking three light sources as an example, three pulse signals generated by the three light sources are respectively 1, 2, and 3, since the three light sources simultaneously irradiate the black plum pointer of the same water meter, all periods are basically the same, and it is assumed that two signals are always normal in a period corresponding to any same time, so that the abnormal signal at the time can be eliminated by using two normal signals, which is specifically performed as follows:
the design circuit comprises a clock, a chip with at least three I/O ports, a communication module, a peripheral circuit and the like, a counter A, B, C, D, E, F is arranged, the number of rising edges of 1, 2 and 3 signals is recorded respectively, D is recorded the effective pulse number, E, F is recorded time, the rising edges of the three signals can be recorded respectively by receiving an external instruction through circuit keys or communication, and if a starting instruction is given from the position of a first dotted line in the upper figure, when the time of a second dotted line is reached, A = A +1, and E = t 1.
B = B +1, C = C +1, a = a +1, and B = B +1 when the third dotted line position is reached, and when a ≧ 2 and B ≧ 2 are satisfied (any two ABCs are 2 or more), D = D +1, a = a-1, B = B-1, and C = C-1.
And the like until an ending command is received, F = t2, and the rotating speed of the water meter is D/(t2-t 1).
Claims (4)
1. A method for calibrating the rotating speed of a water meter pointer is characterized by comprising the following steps:
1) three light sources are arranged above the water meter, and the three light sources simultaneously irradiate the black or red plum-blossom-shaped pointer of the same water meter; initializing the number of effective pulses to 0;
2) simultaneously collecting voltage pulse signals of the three light sources;
3) if any one path of voltage pulse signal has only two rising edges or two falling edges in one period T, adding 1 to the value of the number of the effective pulses, and counting the total number D of the number of the effective pulses in the time period T1-T2;
calculating the rotation speed V of the water meter pointer by using the following formula: v = D/(t2-t 1); wherein T2-T1 is more than or equal to T.
2. A water meter pointer rotation speed calibration system is characterized by comprising:
an acquisition module: the device is used for collecting voltage pulse signals of three light sources arranged above the water meter; wherein the three light sources simultaneously irradiate the black or red plum-blossom-shaped pointer of the same water meter;
a counting module: the method is used for counting the number of the effective pulses in a period T, when any one path of voltage pulse signal has only two rising edges or two falling edges, adding 1 to the value of the number of the effective pulses, and counting the total number D of the number of the effective pulses in a time period T1-T2;
a calculation module: for calculating the speed of rotation V of the meter's pointer using: v = D/(t2-t 1); wherein T2-T1 is more than or equal to T.
3. A water meter pointer speed calibration apparatus for implementing the method of claim 1, comprising:
the three light sources are arranged above each water meter and simultaneously irradiate black or red plum-blossom-shaped pointers of the same water meter;
the acquisition chip is used for acquiring voltage pulse signals of the three light sources corresponding to each water meter; and
and the communication module is connected with the acquisition chip.
4. The calibration device according to claim 3, wherein the acquisition chip comprises:
and six counters, wherein three counters record the number of rising edges of the voltage pulse signals, one counter records the effective pulse number of each path of voltage pulse signals, and the other two counters record the calibration starting time and the calibration ending time respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825917.9A CN107643116B (en) | 2017-09-14 | 2017-09-14 | Water meter rotating speed calibration method, system and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710825917.9A CN107643116B (en) | 2017-09-14 | 2017-09-14 | Water meter rotating speed calibration method, system and device |
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| CN107643116A CN107643116A (en) | 2018-01-30 |
| CN107643116B true CN107643116B (en) | 2020-05-05 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458771B (en) * | 2018-02-24 | 2020-07-28 | 三川智慧科技股份有限公司 | Method for dynamically eliminating interference of plum-blossom-shaped pointer |
| CN111238607B (en) * | 2020-02-24 | 2021-08-27 | 湖南省计量检测研究院 | Durability test device and method for water meter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089764A (en) * | 2006-06-13 | 2007-12-19 | 中国科学院空间科学与应用研究中心 | Antenna automatic tracking inter-satellite control device and method |
| CN101266284A (en) * | 2007-03-16 | 2008-09-17 | 北京中纺锐力机电有限公司 | Switch reluctance machine rotor angular position and rotation speed detection device and method |
| CN102035455A (en) * | 2010-11-30 | 2011-04-27 | 中冶南方（武汉）自动化有限公司 | M/T speed measuring method for frequency converter |
| CN102128665A (en) * | 2011-01-29 | 2011-07-20 | 中国计量学院 | Device for detecting accuracy of mechanical water meter |
| CN102359804A (en) * | 2011-09-06 | 2012-02-22 | 黄华 | Register of direct-reading water gauge |
| CN102809399A (en) * | 2012-08-29 | 2012-12-05 | 重庆市智能水表有限责任公司 | Intelligent electronic water meter and forward and backward rotary metering method thereof |
| CN204313898U (en) * | 2014-12-13 | 2015-05-06 | 重庆市山城燃气设备有限公司 | Hall pulsed gas meter, flow meter |
| CN105403725A (en) * | 2015-12-11 | 2016-03-16 | 重庆鸿引电子有限公司 | Rotating speed measurement method and system, and tachometer |
| CN106885616A (en) * | 2015-12-15 | 2017-06-23 | 天津市金凤科技发展有限公司 | Water meter accuracy detection means |
-
2017
- 2017-09-14 CN CN201710825917.9A patent/CN107643116B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089764A (en) * | 2006-06-13 | 2007-12-19 | 中国科学院空间科学与应用研究中心 | Antenna automatic tracking inter-satellite control device and method |
| CN101266284A (en) * | 2007-03-16 | 2008-09-17 | 北京中纺锐力机电有限公司 | Switch reluctance machine rotor angular position and rotation speed detection device and method |
| CN102035455A (en) * | 2010-11-30 | 2011-04-27 | 中冶南方（武汉）自动化有限公司 | M/T speed measuring method for frequency converter |
| CN102128665A (en) * | 2011-01-29 | 2011-07-20 | 中国计量学院 | Device for detecting accuracy of mechanical water meter |
| CN102359804A (en) * | 2011-09-06 | 2012-02-22 | 黄华 | Register of direct-reading water gauge |
| CN102809399A (en) * | 2012-08-29 | 2012-12-05 | 重庆市智能水表有限责任公司 | Intelligent electronic water meter and forward and backward rotary metering method thereof |
| CN204313898U (en) * | 2014-12-13 | 2015-05-06 | 重庆市山城燃气设备有限公司 | Hall pulsed gas meter, flow meter |
| CN105403725A (en) * | 2015-12-11 | 2016-03-16 | 重庆鸿引电子有限公司 | Rotating speed measurement method and system, and tachometer |
| CN106885616A (en) * | 2015-12-15 | 2017-06-23 | 天津市金凤科技发展有限公司 | Water meter accuracy detection means |
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| CN107643116A (en) | 2018-01-30 |
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