CN106643927A - Low power consumption dormant electromagnetic flowmeter and controlling method - Google Patents
Low power consumption dormant electromagnetic flowmeter and controlling method Download PDFInfo
- Publication number
- CN106643927A CN106643927A CN201611168049.3A CN201611168049A CN106643927A CN 106643927 A CN106643927 A CN 106643927A CN 201611168049 A CN201611168049 A CN 201611168049A CN 106643927 A CN106643927 A CN 106643927A
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- low
- circuit
- power consumption
- power
- electromagnetic flowmeter
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/588—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters combined constructions of electrodes, coils or magnetic circuits, accessories therefor
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a low power consumption dormant electromagnetic flowmeter. The flowmeter comprises a MCU circuit, a sampling circuit, a excitation control circuit, a blank pipe detecting circuit, a display circuit and a touch button. The sampling circuit, the excitation control circuit, the blank pipe detecting circuit, the display circuit and the touch button are respectively connected with the MCU circuit. The MCU circuit adopts a MKM34Z128CLL5 low power consumption processor; the display circuit adopts a low power consumption LCD; the touch button adopts a CY8C20140-SX2I touch IC; the excitation control circuit adopts a low power consumption MOSFET.
Description
Technical field
The invention belongs to metering field, and in particular to a kind of Electromagnetic Flow that super low-power consumption is realized by intelligent dormant technology
Meter.
Background technology
Battery powered electromagnetic flowmeter needs that electromagnetic flowmeter operating power consumption is greatly reduced.Traditional low power consumption electromagnetic
Effusion meter is except electric circuit and shows using low consumption circuit and low-power consumption IC, is also exactly to reduce exciting current and gap is adopted
The technology of sample is realizing low-power consumption.But sampling this scheme in gap can lose certain certainty of measurement.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the invention provides a kind of Low-power-consumptiodormancy dormancy electromagnetic current
Gauge, including：MCU circuits, sample circuit, excitation control circuit, empty pipe detection circuitry, display circuit, touch key-press is described to adopt
Sample circuit, excitation control circuit, empty pipe detection circuitry, display circuit, touch key-press connects respectively with MCU circuits, the MCU
Circuit adopts MKM34Z128CLL5 low power processors；The display circuit adopts low-power consumption LCD；The touch key-press is adopted
CY8C20140-SX2I touches IC；The excitation control circuit adopts super low-power consumption MOSFET.
Present invention also offers a kind of control method of Low-power-consumptiodormancy dormancy electromagnetic flowmeter, comprises the steps：
Empty pipe detection circuitry is to the analysis of electrode signal dynamic and the pre- judgement of trend；
If judging that flowed fluctuation diminishes by increasing the sampling interval by the amplitude of variation and rate of change size of electrode signal
Reduce power consumption；
If it is determined that the fluctuation to flow has the trend of increase to reduce excitation interval in the case of control magnet exciting coil power.
Further, if the system detects that flow is zero within the long time, it is automatically switched off magnet exciting coil entrance
The pattern of super low-power consumption.
Further, close and flow signal monitoring is kept after magnet exciting coil, sampling is recovered when there is flow.
Further, when empty pipe detection circuitry determines empty pipe condition, close flow signal monitoring, until pipeline again
Full packages is returned to into common low-power consumption mode.
The present invention is by the dynamic analysis of flow and the intelligence of blank pipe full packages and dynamic analysis.In the case where there is flow
In the case of flowed fluctuation is smaller or compares smoothly, system increases the sampling interval automatically, to reduce power consumption.If instead stream
The normal low-power consumption mode of amount big ups and downs switchback.If the system detects that 0 flow or empty pipe condition, system shutdown exciting current is straight
Arrive to normal discharge signal.
Description of the drawings
Fig. 1 is the flow chart of online updating embedded software of the present invention；
Fig. 2 is low power consumption electromagnetic flowmeter system block diagram of the present invention；
Fig. 3 is MCU circuit diagrams；
Fig. 4 is display circuit figure；
Fig. 5 is touch key-press circuit diagram；
Fig. 6 is excitation control circuit figure；
Fig. 7 is empty pipe detection circuitry figure.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As illustrated in fig. 1 and 2, Low-power-consumptiodormancy dormancy electromagnetic flowmeter of the invention, including：MCU circuits 1, sample circuit 2, encourage
Control circuit 3, empty pipe detection circuitry 4, display circuit 5, touch key-press 6, sample circuit 2, excitation control circuit 3, blank pipe inspection
Slowdown monitoring circuit 4, display circuit 5, touch key-press 6 connects respectively with MCU circuits 1.
As shown in figure 3, MCU circuits 1 adopt MKM34Z128CLL5 low power processors, sampled, shown, excitation control
The realization of the intelligent function such as system and traffic trends judgement.
Sample circuit 2 is sampled to electrode signal, and then obtains flow and changes in flow rate trend.
As shown in figure 4, display circuit 5 is shown using low-power consumption LCD and can realize intelligent display and close.
As shown in figure 5, touch key-press 6 is using touch IC（CY8C20140-SX2I）Induced key partition capacitance changes messenger
Machine interactive operation.Optimization low-power consumption mode is entered system when long-time is operated is compared（Such as closing display reduces CPU works
Working frequency etc.）.
As shown in fig. 6, excitation control circuit 3 adopts super low-power consumption MOSFET (FDN327N), by the intelligence control of MCU circuits 1
Magnet exciting coil processed 7 switchs with clearance control to carry out precise controlling and the management of power, when flowed fluctuation is big, increases electric current.
As shown in fig. 7, empty pipe detection circuitry 4 is to the analysis of electrode signal dynamic and the pre- judgement of trend.If passing through electrode
The amplitude of variation and rate of change size of signal judges that flowed fluctuation diminishes by increasing sampling interval reduction power consumption but energy is abundant
Ensure the precision of sampling；If it is determined that the fluctuation to flow has trend reduction in the case of control magnet exciting coil power of increase
Excitation is spaced to ensure precision.Minor swing and steady flow amount situation account for the ratio of whole operating mode in the case of actual flowed fluctuation
Example is that comparison is high.Can highly effective reduction Overall Power Consumption by this measure.
If the system detects that flow is zero within the long time.System will turn off excitation and enter super low-power consumption
Pattern（The monitoring for only keeping flow signal recovers sampling when there is flow）.
When empty pipe detection circuitry 4 determines empty pipe condition, system will further decrease power consumption（Close flow signal prison
Control）, until pipeline is restored to the common low-power consumption mode of full packages.
Claims (5)
1. a kind of Low-power-consumptiodormancy dormancy electromagnetic flowmeter, including：MCU circuits（1）, sample circuit（2）, excitation control circuit（3）, it is empty
Pipe detects circuit（4）, display circuit（5）, touch key-press（6）, it is characterised in that：The sample circuit（2）, excitation control circuit
（3）, empty pipe detection circuitry（4）, display circuit（5）, touch key-press（6）Respectively with MCU circuits（1）Connection, the MCU circuits
（1）Using MKM34Z128CLL5 low power processors；The display circuit（5）Using low-power consumption LCD；The touch key-press（6）
IC is touched using CY8C20140-SX2I；The excitation control circuit（3）Using super low-power consumption MOSFET.
2. the control method of Low-power-consumptiodormancy dormancy electromagnetic flowmeter as claimed in claim 1, it is characterised in that：Including following step
Suddenly：
Empty pipe detection circuitry（4）To the analysis of electrode signal dynamic and the pre- judgement of trend；
If judging that flowed fluctuation diminishes by increasing the sampling interval by the amplitude of variation and rate of change size of electrode signal
Reduce power consumption；
If it is determined that the fluctuation to flow has the trend of increase to reduce excitation interval in the case of control magnet exciting coil power.
3. the control method of Low-power-consumptiodormancy dormancy electromagnetic flowmeter as claimed in claim 2, it is characterised in that：
If the system detects that flow is zero within the long time, magnet exciting coil is automatically switched off into the mould of super low-power consumption
Formula.
4. the control method of Low-power-consumptiodormancy dormancy electromagnetic flowmeter as claimed in claim 3, it is characterised in that：Close magnet exciting coil
Flow signal monitoring is kept afterwards, and sampling is recovered when there is flow.
5. the control method of Low-power-consumptiodormancy dormancy electromagnetic flowmeter as claimed in claim 4, it is characterised in that：When blank pipe detection electricity
Road（4）When determining empty pipe condition, flow signal monitoring is closed, until pipeline is restored to full packages into common low-power consumption mould
Formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168049.3A CN106643927A (en) | 2016-12-16 | 2016-12-16 | Low power consumption dormant electromagnetic flowmeter and controlling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168049.3A CN106643927A (en) | 2016-12-16 | 2016-12-16 | Low power consumption dormant electromagnetic flowmeter and controlling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106643927A true CN106643927A (en) | 2017-05-10 |
Family
ID=58822768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611168049.3A Pending CN106643927A (en) | 2016-12-16 | 2016-12-16 | Low power consumption dormant electromagnetic flowmeter and controlling method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106643927A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695842A (en) * | 2021-01-11 | 2021-04-23 | 锦霸科技股份有限公司 | Constant-pressure water supply control method without pressure tank |
| CN113494943A (en) * | 2020-04-08 | 2021-10-12 | 上海锐铼水务科技有限公司 | Electromagnetic water meter and self-adaptive excitation circuit thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6237424B1 (en) * | 1997-04-25 | 2001-05-29 | Abb Metering Limited | Electromagnetic flowmeter having low power consumption |
| US20080262796A1 (en) * | 2007-03-22 | 2008-10-23 | Endress + Hauser Flowtec Ag | Method for predictive maintenance and/or method for determining electrical conductivity in a magneto-inductive flow-measuring device |
| CN102305647A (en) * | 2011-05-10 | 2012-01-04 | 安徽润尔兴仪表有限公司 | Intermittent excitation electromagnetic flowmeter and control method thereof |
| CN202255495U (en) * | 2011-09-14 | 2012-05-30 | 武汉市波光系统工程有限责任公司 | Empty tube detection device for electromagnetic flowmeter |
| CN206330622U (en) * | 2016-12-16 | 2017-07-14 | 杭州盘古自动化系统有限公司 | A kind of Low-power-consumptiodormancy dormancy electromagnetic flowmeter |
-
2016
- 2016-12-16 CN CN201611168049.3A patent/CN106643927A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6237424B1 (en) * | 1997-04-25 | 2001-05-29 | Abb Metering Limited | Electromagnetic flowmeter having low power consumption |
| US20080262796A1 (en) * | 2007-03-22 | 2008-10-23 | Endress + Hauser Flowtec Ag | Method for predictive maintenance and/or method for determining electrical conductivity in a magneto-inductive flow-measuring device |
| CN102305647A (en) * | 2011-05-10 | 2012-01-04 | 安徽润尔兴仪表有限公司 | Intermittent excitation electromagnetic flowmeter and control method thereof |
| CN202255495U (en) * | 2011-09-14 | 2012-05-30 | 武汉市波光系统工程有限责任公司 | Empty tube detection device for electromagnetic flowmeter |
| CN206330622U (en) * | 2016-12-16 | 2017-07-14 | 杭州盘古自动化系统有限公司 | A kind of Low-power-consumptiodormancy dormancy electromagnetic flowmeter |
Non-Patent Citations (1)
| Title |
|---|
| 黄皎等: "基于新型励磁方式的电磁流量计设计", 《传感技术学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494943A (en) * | 2020-04-08 | 2021-10-12 | 上海锐铼水务科技有限公司 | Electromagnetic water meter and self-adaptive excitation circuit thereof |
| CN112695842A (en) * | 2021-01-11 | 2021-04-23 | 锦霸科技股份有限公司 | Constant-pressure water supply control method without pressure tank |
| CN112695842B (en) * | 2021-01-11 | 2022-09-20 | 锦霸科技股份有限公司 | Constant-pressure water supply control method without pressure tank |
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Application publication date: 20170510 |
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