CN104268425B - The self adaptation low-power consumption method of sampling of ultrasonic water meter - Google Patents
The self adaptation low-power consumption method of sampling of ultrasonic water meter Download PDFInfo
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- CN104268425B CN104268425B CN201410536655.0A CN201410536655A CN104268425B CN 104268425 B CN104268425 B CN 104268425B CN 201410536655 A CN201410536655 A CN 201410536655A CN 104268425 B CN104268425 B CN 104268425B
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Abstract
The present invention relates to a kind of self adaptation low-power consumption method of sampling of ultrasonic water meter, it is characterized in that by reduce the T1 of sample phase downstream in microprocessor or against the current the sampled data number of times of sample phase T2 come reach reduce power consumption purpose, the present invention is due to using the above-mentioned method of sampling, the advantages of with power consumption, energy saving, reduces cost is reduced.
Description
Technical field
The present invention relates to flow metering device technical field, the self adaptation low-power consumption of specifically a kind of ultrasonic water meter
The method of sampling.
Background technology
It is well known that the sampling period of existing ultrasonic water meter includes four-stage, it is specially sample phase downstream
T1, against the current sample phase T2, data processing and calculation stages T3 and system dormant stage T4, this traditional sampling mode is every
T milliseconds once measure downstream and against the current, extremely low in the power consumption of dormant stage T4 consumption from power consumption angle analysis, and downstream
Sample phase T1, the power consumption of sample phase T2 consumption against the current are maximum, and the power consumption of T3 discrete consumings falls between.Typically
In the case of, in a T millisecond period, the value of T1, T2 and T3 of the usual system is a definite value, T4 according to sampling period T change
Change and change.In order to reduce power consumption, this traditional system can only be reached by dynamic adjustment cycle T, it can thus be seen that
This mode for reducing power consumption does not reach significant effect.
The content of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, there is provided a kind of method is simple, notable energy saving and
Reduce the self adaptation low-power consumption method of sampling of the ultrasonic water meter of power consumption.
The technical solution adopted for the present invention to solve the technical problems is：
The self adaptation low-power consumption method of sampling of a kind of ultrasonic water meter, it is characterised in that suitable in microprocessor by reducing
The sampled data number of times of water sample phase T1 or against the current sample phase T2 reduces the purpose of power consumption, its specific method step to reach
Suddenly it is：
1) sampling of sample phase T1 downstream is carried out within the K sampling periods, and sampled data S (K) is stored in queue Q1
In；
2）Judge whether sampled data S (K) and S (K-1) distances exceed threshold value L, if being no more than threshold value L, jump to step
Rapid 5, otherwise continue next step；
3）The sampling of sample phase T2 against the current is carried out within the K sampling periods, and sampled data N (K) is stored in queue Q2
In；
4）Data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then
Jump to step 1；
5）The data sampling of data processing and calculation stages T3 and system dormant stage T4 is carried out within the K sampling periods, makes K
=K+1；
6）The data sampling of sample phase T2 against the current is carried out within the K sampling periods, and sampled data N (K) is stored in team
In row Q2；
7）Judge whether N (K) and N (K-1) distances exceed threshold value L, if being no more than threshold value L, jump to step 10）, it is no
Then continue；
8）The sampling of sample phase T1 downstream is carried out within the K sampling periods, and sampled data S (K) is stored in queue Q1
In；
9）Data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then
Jump to step 6）；
10) data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, so
After jump to step 1）.
Threshold value L of the present invention can be more than the absolute value of S (K) and S (K-1) or the absolute value of N (K) and N (K-1), described
Threshold range preferably between 300ps-500ps, to ensure program to the current fast-changing reaction time.
The present invention due to using the above-mentioned method of sampling, with reducing power consumption, the advantages of energy saving, reduces cost.
Specific embodiment
With reference to flow chart, the present invention is further described：
As shown in Figure 1, the self adaptation low-power consumption method of sampling of a kind of ultrasonic water meter, it is characterised in that micro- by reducing
The T1 of sample phase downstream in processor or against the current the sampled data number of times of sample phase T2 reduce the purpose of power consumption to reach,
Its specific method step is：
1) sampling of sample phase T1 downstream is carried out within the K sampling periods, and sampled data S (K) is stored in queue Q1
In；
2) judge whether sampled data S (K) and S (K-1) distances exceed threshold value L, if being no more than threshold value L, jump to step
Rapid 5）, otherwise continue next step；
3) sampling of sample phase T2 against the current is carried out within the K sampling periods, and sampled data N (K) is stored in queue Q2
In；
4) data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then
Jump to step 1）；
5) data sampling of data processing and calculation stages T3 and system dormant stage T4 is carried out within the K sampling periods, is made
K=K+1；
6) data sampling of sample phase T2 against the current is carried out within the K sampling periods, and sampled data N (K) is stored in team
In row Q2；
7) judge whether N (K) and N (K-1) distances exceed threshold value L, if being no more than threshold value L, jump to step 10）, it is no
Then continue；
8) sampling of sample phase T1 downstream is carried out within the K sampling periods, and sampled data S (K) is stored in queue Q1
In；
9) data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then
Jump to step 6）；
10) data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then
Jump to step 1）.
Threshold value L of the present invention can be more than the absolute value of S (K) and S (K-1) or the absolute value of N (K) and N (K-1), described
Threshold range preferably between 300ps-500ps, to ensure program to the current fast-changing reaction time.
The present invention enters in a T millisecond period first when the liquid to inflow table vivo detection region is detected
Row sample phase T1 and the sampling of sample phase T2 against the current downstream, storage sampled value is in queue Q, and follow-up T millisecond periods are interior only
Carry out sample phase T1 or against the current sample phase T2 downstream, the T1 ranks set in the data that sampling is returned and microprocessor queue
Section or T2 phase datas are compared analyzing and processing, decide whether to carry out afterwards according to the size of time change the T2 stages or
In the T1 stages, so as to realize reducing power consumption and quickly tracking flow velocity, can thus take into account power consumption and reaction speed
Two aspects, and without very complicated computing.
The present invention due to using the above-mentioned method of sampling, with reducing power consumption, the advantages of energy saving, reduces cost.
Claims (1)
1. the self adaptation low-power consumption method of sampling of a kind of ultrasonic water meter, it is characterised in that
Specific method step is：
1) sampling of sample phase T1 downstream is carried out within the K sampling periods, and sampled data S (K) is stored in queue Q1, and
The absolute value of given threshold, absolute values of the threshold value L more than S (K) and S (K-1), or N (K) and N (K-1), the threshold value model
It is trapped among between 300ps-500ps；
2) judge whether sampled data S (K) and S (K-1) distances exceed threshold value L, if being no more than threshold value L, jump to step 5）,
Otherwise continue next step；
3) sampling of sample phase T2 against the current is carried out within the K sampling periods, and sampled data N (K) is stored in queue Q2；
4) data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then redirected
To step 1）；
5) data sampling of data processing and calculation stages T3 and system dormant stage T4 is carried out within the K sampling periods, makes K=K+
1；
6) data sampling of sample phase T2 against the current is carried out within the K sampling periods, and sampled data N (K) is stored in queue Q2
In；
7) judge whether N (K) and N (K-1) distances exceed threshold value L, if being no more than threshold value L, jump to step 10）, otherwise after
It is continuous；
8) sampling of sample phase T1 downstream is carried out within the K sampling periods, and sampled data S (K) is stored in queue Q1；
9) data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then redirected
To step 6）；
10) data processing and calculation stages T3 and system dormant stage T4 are carried out within the K sampling periods, makes K=K+1, then redirected
To step 1）,
When liquid to inflow table vivo detection region is detected, rank of being sampled downstream in a T millisecond period first
Section T1 and the sampling of sample phase T2 against the current, storage sampled value are only sampled downstream in queue Q in follow-up T millisecond periods
Stage T1 or against the current sample phase T2, the T1 stages or T2 stages set in data and microprocessor queue that sampling is returned
Data are compared analyzing and processing, decide whether to carry out T2 stages or T1 stages afterwards according to the size of time change, so that
Realize reducing power consumption and quickly tracking flow velocity.
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| CN104949724B (en) * | 2015-07-10 | 2017-11-21 | 安徽水联水务科技有限公司 | The dynamic econometric analysis of supersonic wave metering instrument |
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| CN1828234A (en) * | 2005-03-02 | 2006-09-06 | 陈庆斌 | Low-power consumption GPRS data collection terminal for water gauge flow analysis and settlement |
| CN101762288A (en) * | 2009-11-14 | 2010-06-30 | 湖南常德牌水表制造有限公司 | Micropower photoelectric reversible intelligence sensor |
| CN102435462A (en) * | 2011-09-21 | 2012-05-02 | 东南大学 | Intelligent waste water sampling control system and sampling control method thereof |
| CN103323063A (en) * | 2013-05-17 | 2013-09-25 | 深圳职业技术学院 | Ultrasonic flow meter and time difference measuring method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5957242B2 (en) * | 2012-03-01 | 2016-07-27 | アズビル株式会社 | Ultrasonic flowmeter simple diagnostic device |
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Patent Citations (4)
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|---|---|---|---|---|
| CN1828234A (en) * | 2005-03-02 | 2006-09-06 | 陈庆斌 | Low-power consumption GPRS data collection terminal for water gauge flow analysis and settlement |
| CN101762288A (en) * | 2009-11-14 | 2010-06-30 | 湖南常德牌水表制造有限公司 | Micropower photoelectric reversible intelligence sensor |
| CN102435462A (en) * | 2011-09-21 | 2012-05-02 | 东南大学 | Intelligent waste water sampling control system and sampling control method thereof |
| CN103323063A (en) * | 2013-05-17 | 2013-09-25 | 深圳职业技术学院 | Ultrasonic flow meter and time difference measuring method thereof |
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| 一种适于时差法超声流量计的自适应采样方法;罗永 等;《微电子学与计算机》;20120930;第29卷(第9期);第121-124页 * |
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