CN206638286U - A kind of super low-power consumption high reliability water meter - Google Patents
A kind of super low-power consumption high reliability water meter Download PDFInfo
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- CN206638286U CN206638286U CN201720157887.4U CN201720157887U CN206638286U CN 206638286 U CN206638286 U CN 206638286U CN 201720157887 U CN201720157887 U CN 201720157887U CN 206638286 U CN206638286 U CN 206638286U
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Abstract
A kind of super low-power consumption high reliability water meter, it includes one-chip computer module, power module, tongue tube pulse module, photoelectric direct reading module and valve control module, described power module is connected with one-chip computer module, power supply is provided for one-chip computer module, MBUS communication modules are connected with one-chip computer module, metered flow value is transmitted, while MBUS communication modules are connected with power module, there is provided VBUS power supplys；Tongue tube pulse module is connected with one-chip computer module, there is provided pulse drive signal and acquisition pulse continuous data, while tongue tube pulse module is connected with power module, driving power power supply；Photoelectric direct reading module is connected with one-chip computer module, gathers photoelectric metering data；The utility model uses two kinds of metering methods, when single metering method causes error larger, when can quickly identify, while can ensure one of which metering method failure or artificial destruction, additionally it is possible to continues to measure, reduces economic loss caused by when failure can not measure.
Description
Technical field
The utility model belongs to water meter technical field, specifically a kind of water meter of super low-power consumption high reliability.
Background technology
At present, domestic water meter market is mostly using IC-card pre-payment type, double dry-reed pipe pulse measurement, ultrasonic type, photoelectricity
The main products such as direct-reading telemetering type measure, and pre-payment type water meter solves the problems, such as metering payment, but can not simultaneously solve copy reading
Conveniently, the problems such as precision；Pulse measurement water meter can not real-time copy reading, precision is poor；Though ultrasonic type water meter precision is high, can not
Reliably prevent user from stealing water, metering method is single；Though photo-electronic directly reading telemetering type water meter without battery, solve power issue,
The problems such as low precision be present.
For problem above, domestic many producers have voluntarily researched and developed various new water meters to adapt to existing market application, but
Mostly copied in collection has what preferable means solved with precision aspect.Backward present situation is constantly in terms of reliability and power consumption.
The content of the invention
The purpose of this utility model is to solve the problems, such as background technology, it is proposed that a kind of water meter of super low-power consumption high reliability
Solution.The method being combined using tongue tube pulse measurement mode with photo-electronic directly reading metering method, it is single to solve system
Failure caused by metering method can not timely processing cause systemic breakdown, it is necessary to the problem of safeguarding of visiting.Metering essence is improved simultaneously
Degree, reduce power consumption, improve reliability.
The technical solution of the utility model is：
A kind of super low-power consumption high reliability water meter, it includes one-chip computer module, power module, tongue tube pulse module, arteries and veins
Electric module, photoelectric direct reading module and valve control module are rushed to, described power module is connected with one-chip computer module, is single-chip microcomputer
Module provides power supply, and MBUS communication modules are connected with one-chip computer module, transmits metered flow value, while MBUS communication modules and electricity
Source module connects, there is provided VBUS power supplys；Tongue tube pulse module is connected with one-chip computer module, there is provided pulse drive signal simultaneously gathers
Pulse measurement data, while tongue tube pulse module is connected with electric module in pulse, electric module is connected with power module in pulse,
Drive the power supply of VBAT power supplys；Photoelectric direct reading module is connected with one-chip computer module, gathers photoelectric metering data；One-chip computer module
Control signal output is connected with valve control module, controls the keying of water meter valve.
Tongue tube pulse module of the present utility model includes resistance R7, R8, R19, R20, R21, R22, triode Q6, Q7,
Diode D4, D5 and tongue tube H1, H2, described triode Q7 base stage connect electric mould on tongue tube H1 one end and pulse
Block, tongue tube the H1 other end series resistor R21, R21 another termination VGG, triode Q7 emitter stage series resistor R8 it
After be grounded, triode Q7 collector series connection resistance R7's is followed by power supply VCC, triode Q7 colelctor electrode and resistance R7 connection
Point is connected as tongue tube H1 pulse signal output end Pulse1 with the corresponding signal acquisition terminal of one-chip computer module；Triode Q6
Base stage connection tongue tube H2 one end and pulse on electric module, tongue tube the H2 other end series resistor R22's, R22 is another
VGG is terminated, is grounded after triode Q6 emitter stage series resistor R20, triode Q6 collector series connection resistance R19's is followed by
Power supply VCC, triode Q6 colelctor electrode and resistance R19 tie point as tongue tube H2 pulse signal output end Pulse2 with
The corresponding signal acquisition terminal of one-chip computer module is connected；Foregoing VGG ends connection diode D4 and D5 negative pole, diode D4's and D5
Positive pole connects power supply VBAT and power supply VBUS respectively, and when any tongue tube closes, VGG provides driving voltage conducting Q6 or Q7.
Power module of the present utility model includes VBAT power supplys, VBUS power supplys, electric capacity C1, C2, resistance R13-R18, three poles
Pipe Q3, Q4 and diode D1-D3；Described VBAT power supplys are battery, and connect filter capacitor C1, C2, the positive pole of VBAT power supplys
It is connected with triode Q3 emitter stage, triode Q3 base stage connecting resistance R16 one end, resistance R16 another terminating diode
D3 negative pole, resistance R16 and diode D3 negative poles tie point series resistance R15 are grounded afterwards, and diode D3 positive pole connects two
Pole pipe D1 positive pole and VBUS power supplys, VBUS power supplys are by MBUS communication modules from MBUS bus power takings, triode Q3 collection
Electrode connects triode Q4 emitter stage, and triode Q4 colelctor electrode connects diode D2 positive pole, diode D2 negative pole and two poles
It is power supply VCC that pipe D1 negative pole, which is connected as power supply signal output end, parallel resistance between triode Q4 emitter stage and base stage
R17, triode Q4 base stage series resistor the R18 colelctor electrode for being followed by triode Q5, triode Q5 grounded emitter, three poles
Pipe Q5 base stage connects electric module in pulse.
Electric module includes resistance R9-R14, triode Q5, resistance R9 and R11 one end difference in pulse of the present utility model
Connecting resistance R10, R12 one end after serial capacitance C3, C4, R10 and R12 other end ground connection, resistance R9 and the R11 other end
And connect, and be connected with resistance R14 one end, it is grounded after resistance R14 other end series resistor R13, resistance R13 and resistance
R14 tie point meets the power control signal end of one-chip computer module, resistance R14, R9 and R11 as power control signal P_CTRL
Tie point as base stage of the other end as the power supply signal output termination triode Q5 of electric module in pulse.
The beneficial effects of the utility model：
The utility model uses two kinds of metering methods, when single metering method causes error larger, can quickly identify,
When can ensure one of which metering method failure or artificial destruction simultaneously, additionally it is possible to continue to measure, when reducing failure can not measure
Caused by economic loss.
The utility model is preferentially bus-powered using MBUS, and when MBUS buses disconnect, system is in zero-power, there is pulse production
Raw tongue tube sensor closure can be measured for system power supply automatically by battery；When MBUS buses are working properly, system, which is in, stops
Dormancy state, tongue tube make pulse, which produces, wakes up single-chip microcomputer metering, or wakes up when having a MBUS communications and read present flow rate.
The utility model have during strong magnetic disturbance can automatic-closing valve prevent surreptitiously water, strong magnetic disturbance releases automatic valve opening, carried
High system reliability, security.
Brief description of the drawings
Fig. 1 is power supply switching and pulsed drive Acquisition Circuit.
Fig. 2 is system principle diagram.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Fig. 2 a kind of super low-power consumption high reliability water meter, it includes one-chip computer module, power module, tongue tube arteries and veins
Electric module, photoelectric direct reading module and valve control module on die block, pulse, described power module connect with one-chip computer module
Connect, power supply is provided for one-chip computer module, MBUS communication modules are connected with one-chip computer module, transmit metered flow value, while MBUS
Communication module is connected with power module, there is provided VBUS power supplys；Tongue tube pulse module is connected with one-chip computer module, there is provided pulse is driven
Dynamic signal and acquisition pulse continuous data, while tongue tube pulse module is connected with electric module in pulse, in pulse electric module and
Power module connects, driving VBAT power supply power supplies；Photoelectric direct reading module is connected with one-chip computer module, gathers photoelectric metering data；
The control signal output of one-chip computer module is connected with valve control module, controls the keying of water meter valve.
As shown in figure 1, tongue tube pulse module of the present utility model includes resistance R7, R8, R19, R20, R21, R22, three
Pole pipe Q6, Q7, diode D4, D5 and tongue tube H1, H2, described triode Q7 base stage connection tongue tube H1 one end and arteries and veins
Rush to electric module, tongue tube the H1 other end series resistor R21, R21 another termination VGG, triode Q7 emitter stage concatenation
It is grounded after resistance R8, triode Q7 collector series connection resistance R7's is followed by power supply VCC, triode Q7 colelctor electrode and resistance
R7 tie point is connected as tongue tube H1 pulse signal output end Pulse1 with the corresponding signal acquisition terminal of one-chip computer module；
Electric module on triode Q6 base stage connection tongue tube H2 one end and pulse, tongue tube H2 other end series resistor R22,
It is grounded after R22 another termination VGG, triode Q6 emitter stage series resistor R20, triode Q6 collector series connection resistance
R19's is followed by power supply VCC, the output of pulse signal of triode Q6 colelctor electrode and resistance R19 tie point as tongue tube H2
End Pulse2 is connected with the corresponding signal acquisition terminal of one-chip computer module；Foregoing VGG ends connection diode D4 and D5 negative pole, two poles
Pipe D4 and D5 positive pole connect power supply VBAT and power supply VBUS respectively, and when any tongue tube closes, VGG provides driving voltage conducting
Q6 or Q7.
Power module of the present utility model includes VBAT power supplys, VBUS power supplys, electric capacity C1, C2, resistance R13-R18, three poles
Pipe Q3, Q4 and diode D1-D3；Described VBAT power supplys are battery, and connect filter capacitor C1, C2, the positive pole of VBAT power supplys
It is connected with triode Q3 emitter stage, triode Q3 base stage connecting resistance R16 one end, resistance R16 another terminating diode
D3 negative pole, resistance R16 and diode D3 negative poles tie point series resistance R15 are grounded afterwards, and diode D3 positive pole connects two
Pole pipe D1 positive pole and VBUS power supplys, VBUS power supplys are by MBUS communication modules from MBUS bus power takings, triode Q3 collection
Electrode connects triode Q4 emitter stage, and triode Q4 colelctor electrode connects diode D2 positive pole, diode D2 negative pole and two poles
It is power supply VCC that pipe D1 negative pole, which is connected as power supply signal output end, parallel resistance between triode Q4 emitter stage and base stage
R17, triode Q4 base stage series resistor the R18 colelctor electrode for being followed by triode Q5, triode Q5 grounded emitter, three poles
Pipe Q5 base stage connects electric module in pulse.
Electric module includes resistance R9-R14, triode Q5, resistance R9 and R11 one end difference in pulse of the present utility model
Connecting resistance R10, R12 one end after serial capacitance C3, C4, R10 and R12 other end ground connection, resistance R9 and the R11 other end
And connect, and be connected with resistance R14 one end, it is grounded after resistance R14 other end series resistor R13, resistance R13 and resistance
R14 tie point meets the power control signal end of one-chip computer module, resistance R14, R9 and R11 as power control signal P_CTRL
Tie point as base stage of the other end as the power supply signal output termination triode Q5 of electric module in pulse.
During specific implementation：
Power management scheme is as follows：
Whether monolithic machine testing VBUS is low level to switch power supply mode.VBUS=0, monolithic are detected under power supply state
Machine will be switched to VBAT power supply modes in time, preserves data and is switched to power-down mode；When system detectio to VBUS is high level
When will be switched to VBUS power supply modes, switching system is park mode.
As shown in figure 1, when VBUS bus power sources are powered, Q3 triodes are not turned in figure, and VBUS power supplys are through diode D1
VCC is output to, VBAT power-supply systems are closed, and system is in continued power state；System is in park mode, work(during no pulse
Consumption is less than 2uA；When tongue tube H1 or H2 are closed, pulse Pulse1 or Pulse2 will be produced by triode Q7 or Q6, interrupted
Single-chip microcomputer recording impulse is waken up, while gathers photoelectric sensor encoded radio, Qp (n) and Qo (n) are calculated, then by calibration
Obtain Q (n) values, system power consumption is in 1mA or so during work, and system is again introduced into park mode after preserving data.
As shown in figure 1, when system detectio is to VBUS=0, Q3 base stages are connected to GND by R16 and R15, and Q3 conductings, system will
VBAT powering modes are switched to, while P_CTRL puts high level, now Q5 is turned on, Q5 driving Q4 triode ONs, VBAT power supplys
It is system power supply to be connected to VCC by Q4 triodes, D2 diodes, enters power-down state after preserving working condition.
Under VBAT powering modes, system is in off-position during no pulse, power consumption 0, when tongue tube H1 or H2 are closed,
Triode Q5 conductings will be driven by pulse driving circuit C3/R9 or C4/R11, while Q4 will be turned on, VCC has electricity, and single-chip microcomputer will
P_CTRL puts high level and powered for systems stay, while single-chip microcomputer inquiry Pulse1 and Pulse2 level states, judges that pulse is
It is no effectively or magnetic disturbance produces, there is pulses generation then recording impulse and to calculate flow value, if magnetic disturbance will carry out closing valve report
It is alert；P_CTRL is set to low level after single-chip microcomputer end of operation, Q5 is not turned on, and Q4 will be not turned on, and VCC will be changed into low level, be
System power-off.
Security management mechanism is as follows：
System detectio MBUS buses disconnect, and record alarm condition；When the integrated flux difference of two kinds of metering methods is more than 1m3
When, one of which metering method failure, the integrated flux of another metering method will be used as actual flow.
The automatic-closing valve when there is strong magnetic disturbance, strong magnetic release next pulse arrival automatic valve opening, prevent surreptitiously water；
Although the utility model is illustrated referring to the drawings, for those skilled in the art, this
Utility model can have various modifications and variations.The various equivalents changed, changed of the present utility model are in the utility model
In the covering scope of appended claims.
The utility model is not directed to partly same as the prior art or can realized using prior art.
Claims (4)
- A kind of 1. super low-power consumption high reliability water meter, it is characterized in that it includes one-chip computer module, power module, tongue tube pulse mode Electric module, photoelectric direct reading module, MBUS communication modules and valve control module on block, pulse, described power module and monolithic Machine module is connected, and power supply is provided for one-chip computer module, and MBUS communication modules are connected with one-chip computer module, transmits metered flow value, MBUS communication modules are connected with power module simultaneously, there is provided VBUS power supplys；Tongue tube pulse module is connected with one-chip computer module, is carried For pulse drive signal and acquisition pulse continuous data, while tongue tube pulse module is connected with electric module in pulse, in pulse Electric module is connected with power module, driving VBAT power supply power supplies；Photoelectric direct reading module is connected with one-chip computer module, gathers photoelectrometer Measure data；The control signal output of one-chip computer module is connected with valve control module, controls the keying of water meter valve.
- A kind of 2. super low-power consumption high reliability water meter according to claim 1, it is characterised in that described tongue tube pulse Module includes resistance R7, R8, R19, R20, R21, R22, triode Q6, Q7, diode D4, D5 and tongue tube H1, H2, described Electric module on triode Q7 base stage connection tongue tube H1 one end and pulse, tongue tube H1 other end series resistor R21, It is grounded after R21 another termination VGG, triode Q7 emitter stage series resistor R8, triode Q7 collector series connection resistance R7's is followed by power supply VCC, the pulse signal output end of triode Q7 colelctor electrode and resistance R7 tie point as tongue tube H1 Pulse1 is connected with the corresponding signal acquisition terminal of one-chip computer module；Triode Q6 base stage connection tongue tube H2 one end and pulse Upper electric module, tongue tube the H2 other end series resistor R22, R22 another termination VGG, triode Q6 emitter stage concatenation electricity Hinder R20 to be grounded afterwards, triode Q6 collector series connection resistance R19's is followed by power supply VCC, triode Q6 colelctor electrode and resistance Pulse signal output end Pulse2 with one-chip computer module corresponding signal acquisition terminal phase of the R19 tie point as tongue tube H2 Even；Foregoing VGG ends connection diode D4 and D5 negative pole, diode D4 and D5 positive pole connect power supply VBAT and power supply respectively VBUS, when any tongue tube closes, VGG provides driving voltage conducting Q6 or Q7.
- A kind of 3. super low-power consumption high reliability water meter according to claim 1 or 2, it is characterised in that described power module Including VBAT power supplys, VBUS power supplys, electric capacity C1, C2, resistance R13-R18, triode Q3, Q4 and diode D1-D3；Described VBAT power supplys are battery, and meet filter capacitor C1, C2, and the positive pole of VBAT power supplys is connected with triode Q3 emitter stage, triode Q3 base stage connecting resistance R16 one end, resistance R16 another terminating diode D3 negative pole, resistance R16 and diode D3 negative poles Tie point series resistance R15 after be grounded, diode D3 positive pole connects diode D1 positive pole and VBUS power supplys, VBUS electricity Source is by MBUS communication modules from MBUS bus power takings, triode Q3 collector connecting transistor Q4 emitter stage, triode Q4 Colelctor electrode connect diode D2 positive pole, diode D2 negative pole is connected with diode D1 negative pole is used as power supply signal output end That is after parallel resistance R17 between power supply VCC, triode Q4 emitter stage and base stage, triode Q4 base stage series resistor R18 Triode Q5 colelctor electrode, triode Q5 grounded emitter are connect, triode Q5 base stage connects electric module in pulse.
- 4. a kind of super low-power consumption high reliability water meter according to claim 3, it is characterised in that electric module includes in pulse Resistance R9-R14, triode Q5, the one of connecting resistance R10, R12 after resistance R9 and R11 one end difference serial capacitance C3, C4 End, R10 and R12 other end ground connection, resistance R9 and the R11 other end simultaneously connect, and are connected with resistance R14 one end, resistance It is grounded after R14 other end series resistor R13, resistance R13 and resistance R14 tie point is as power control signal P_CTRL Connect the power control signal end of one-chip computer module, resistance R14, R9 and R11 tie point is as the other end as electric mould in pulse The power supply signal output termination triode Q5 of block base stage.
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| CN201720157887.4U CN206638286U (en) | 2017-02-22 | 2017-02-22 | A kind of super low-power consumption high reliability water meter |
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| CN201720157887.4U CN206638286U (en) | 2017-02-22 | 2017-02-22 | A kind of super low-power consumption high reliability water meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813732A (en) * | 2017-02-22 | 2017-06-09 | 南京林洋电力科技有限公司 | A kind of super low-power consumption high reliability water meter, power supply switching and its metering method |
-
2017
- 2017-02-22 CN CN201720157887.4U patent/CN206638286U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813732A (en) * | 2017-02-22 | 2017-06-09 | 南京林洋电力科技有限公司 | A kind of super low-power consumption high reliability water meter, power supply switching and its metering method |
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