CN104638757B - Double-power-supply power supplying circuit of remote control intelligent gas meter - Google Patents
Double-power-supply power supplying circuit of remote control intelligent gas meter Download PDFInfo
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- CN104638757B CN104638757B CN201510055288.7A CN201510055288A CN104638757B CN 104638757 B CN104638757 B CN 104638757B CN 201510055288 A CN201510055288 A CN 201510055288A CN 104638757 B CN104638757 B CN 104638757B
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- power supply
- dry cell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The invention discloses a double-power-supply power supplying circuit of a remote control intelligent gas meter. The double-power-supply power supplying circuit comprises a dry battery, a lithium battery, a reversed stop circuit 1, a reversed stop circuit 2, a reversed stop circuit 3, a dry battery power supplying detection circuit, a power supplying switching circuit, a voltage conversion circuit, a main control MCU and an RF wireless module, wherein the output of the dry battery is connected with the reversed stop circuit 1 and the reversed stop circuit 2 respectively; the output of the reversed stop circuit 1 is connected with the main control MCU module through the dry battery power supplying detection circuit; the output of the reversed stop circuit 2 is connected with the power supplying switching circuit; the output of the lithium battery is connected with the power supplying switching circuit and the RF wireless module respectively through the reversed stop circuit 3; the output of the power supplying switching circuit is connected with the main control MCU through the voltage conversion circuit. The double-power-supply power supplying circuit provided by the invention can be used for automatically switching a circuit and is small in system power consumption and long in battery service life.
Description
Technical field
The present invention relates to a kind of double power supply circuit of remote-control intelligent gas meter.
Background technology
With the raising of the reach of science and scientific and technological level, combustion gas has become as requisite one in the middle of our life
Part, gas meter, flow meter also enters the life of people more and more widely, and the power supply of gas meter, flow meter also becomes the problem of manufacturer's concern.
Traditional gas meter, flow meter is all to be powered using dry cell single supply, has some shortcomings, and the power supply of conventional gas table makes
With cycle is short, still electricity may consumed during power down, system power dissipation is big, and battery life is short, just may have influence on gas meter, flow meter
Often use, cause the problem that some are unnecessary.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide one kind can be with automatic switch-over circuit, system power dissipation
Little, the double power supply circuit of the remote-control intelligent gas meter of battery life length.
The purpose of the present invention is achieved through the following technical solutions：The dual power supply electricity of remote-control intelligent gas meter
Road, it includes dry cell, lithium battery, reverse cut-off circuit, dry cell power supply testing circuit, power switching circuit, voltage conversion
Circuit, main control MCU and RF wireless module, described reverse cut-off circuit includes reverse cut-off circuit 1, reverse cut-off circuit 2 and
Reversely cut-off circuit 3；The output end of dry cell is connected with reverse cut-off circuit 1 and reverse cut-off circuit 2 respectively, reversely ends electricity
The output end on road 1 is connected with dry cell power supply testing circuit, and the output end of dry cell power supply testing circuit is with main control MCU module even
Connect, the output end of reverse cut-off circuit 2 is connected with power switching circuit, the output end of lithium battery is connected with reverse cut-off circuit 3,
Reversely the output end of cut-off circuit 3 is connected with power switching circuit and RF wireless module respectively, and power switching circuit passes through voltage
Change-over circuit is connected with main control MCU.
The double power supply circuit of described remote-control intelligent gas meter also includes high-voltage detecting circuit, and described high pressure detects
The input of circuit is connected with power switching circuit, and the output end of high-voltage detecting circuit is connected with main control MCU.
The double power supply circuit of described remote-control intelligent gas meter, also includes dry cell low pressure warning testing circuit, institute
The input of dry cell low pressure warning testing circuit stated is connected with reverse cut-off circuit 1, and output end is connected with main control MCU.
The double power supply circuit of described remote-control intelligent gas meter also includes dry cell low-voltage testing circuit, and described is dry
The input of battery low-voltage testing circuit is connected with reverse cut-off circuit 1, and output end is connected with main control MCU.
The double power supply circuit of described remote-control intelligent gas meter also includes lithium battery low-voltage testing circuit, described lithium
The input of battery low-voltage testing circuit is connected with reverse cut-off circuit 3, and output end is connected with main control MCU.
Described main control MCU is single-chip microcomputer MSP430.
The invention has the beneficial effects as follows：（1）Various voltage status can be detected by multiple peripheral voltage testing circuits, by
MCU is processed automatically；（2）By dry cell lithium battery power supply automatic switch-over circuit it is ensured that feelings in outside dry cell power down
Under condition, powered for main control MCU by lithium battery, it is to avoid between main control MCU and RF wireless module communication interface, produce big leakage current,
Reduce system power dissipation further, improve battery.
Brief description
Fig. 1 is the theory diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings technical scheme is described in further detail, but protection scope of the present invention is not limited to
Described below.
As shown in figure 1, the double power supply circuit of remote-control intelligent gas meter, it includes dry cell, lithium battery, reversely ends
Circuit, dry cell power supply testing circuit, power switching circuit, voltage conversion circuit, main control MCU and RF wireless module, described
Reversely cut-off circuit includes reverse cut-off circuit 1, reverse cut-off circuit 2 and reverse cut-off circuit 3；The output end of dry cell is respectively
It is connected with reverse cut-off circuit 1 and reverse cut-off circuit 2, the output end of reverse cut-off circuit 1 and dry cell power supply testing circuit
Connect, the output end of dry cell power supply testing circuit is connected with main control MCU module, the output end of reverse cut-off circuit 2 and power supply
Switching circuit connects, and the output end of lithium battery is connected with reverse cut-off circuit 3, the output end of reverse cut-off circuit 3 respectively with confession
Electrical switching circuit and RF wireless module connect, and power switching circuit is connected with main control MCU by voltage conversion circuit.
The double power supply circuit of described remote-control intelligent gas meter also includes high-voltage detecting circuit, and described high pressure detects
The input of circuit is connected with power switching circuit, and the output end of high-voltage detecting circuit is connected with main control MCU.
The double power supply circuit of described remote-control intelligent gas meter, also includes dry cell low pressure warning testing circuit, institute
The input of dry cell low pressure warning testing circuit stated is connected with reverse cut-off circuit 1, and output end is connected with main control MCU.
The double power supply circuit of described remote-control intelligent gas meter also includes dry cell low-voltage testing circuit, and described is dry
The input of battery low-voltage testing circuit is connected with reverse cut-off circuit 1, and output end is connected with main control MCU.
The double power supply circuit of described remote-control intelligent gas meter also includes lithium battery low-voltage testing circuit, described lithium
The input of battery low-voltage testing circuit is connected with reverse cut-off circuit 3, and output end is connected with main control MCU.
Described main control MCU is single-chip microcomputer MSP430.
In the present invention, using reverse cut-off circuit cut-off operating circuit to dry cell and the anti-sink current of lithium battery；Pass through
Whether the outside dry cell of dry cell power supply testing circuit detection is online, and outputs signal to main control MCU；Detected by low pressure warning
Whether electric circuit inspection dry cell voltage is in alarm voltage zone, and outputs signal to main control MCU；Detected by low-voltage testing circuit
Whether dry cell voltage is in Di electricity area, and outputs signal to main control MCU；Automatic by dry cell lithium battery power supply switching circuit
Switching power supply, is powered to main control MCU using lithium battery in dry cell power down；Dry cell voltage is detected by high-voltage detecting circuit
Whether it is in higher-pressure region, and output signal to main control MCU；By voltage conversion circuit, battery high pressure is converted into main control MCU to fit
Low pressure, and power to main control MCU；Whether Di electricity area is in by lithium battery low power testing electric circuit inspection lithium battery voltage,
And output signal to main control MCU, and lithium battery is directly over supply RF wireless module after reverse cut-off circuit；Main control MCU connects
Receive the signal of all periphery testing circuit inputs, be analyzed processing.
The present invention can detect various voltage status by multiple peripheral voltage testing circuits, is automatically processed by MCU,
Pass through dry cell lithium battery power supply automatic switch-over circuit it is ensured that in the case of outside dry cell power down, by lithium battery simultaneously
Power for main control MCU, it is to avoid between main control MCU and RF wireless module communication interface, produce big leakage current, reduce system further
Power consumption, improves battery.
Claims (4)
1. remote-control intelligent gas meter double power supply circuit it is characterised in that：It includes dry cell, lithium battery, reversely ends
Circuit, dry cell power supply testing circuit, power switching circuit, voltage conversion circuit, main control MCU and RF wireless module, described
Reversely cut-off circuit includes reverse cut-off circuit 1, reverse cut-off circuit 2 and reverse cut-off circuit 3；The output end of dry cell is respectively
It is connected with reverse cut-off circuit 1 and reverse cut-off circuit 2, the output end of reverse cut-off circuit 1 and dry cell power supply testing circuit
Connect, the output end of dry cell power supply testing circuit is connected with main control MCU module, the output end of reverse cut-off circuit 2 and power supply
Switching circuit connects, and the output end of lithium battery is connected with reverse cut-off circuit 3, the output end of reverse cut-off circuit 3 respectively with confession
Electrical switching circuit and RF wireless module connect, and reverse cut-off circuit is used for ending operating circuit and fills electricity to dry cell and lithium battery are counter
Stream；Power switching circuit is connected with main control MCU by voltage conversion circuit；Automatically switched by dry cell lithium battery power supply electric
Road is it is ensured that in the case of outside dry cell power down, powered for main control MCU by lithium battery, it is to avoid main control MCU and the wireless mould of RF
Big leakage current is produced between block communication interface；
The double power supply circuit of described remote-control intelligent gas meter also includes high-voltage detecting circuit, described high-voltage detecting circuit
Input be connected with power switching circuit, the output end of high-voltage detecting circuit is connected with main control MCU.
2. remote-control intelligent gas meter according to claim 1 double power supply circuit it is characterised in that：It also includes doing
Battery low pressure warning testing circuit, the described input of dry cell low pressure warning testing circuit is connected with reverse cut-off circuit 1,
Output end is connected with main control MCU.
3. remote-control intelligent gas meter according to claim 1 double power supply circuit it is characterised in that：It also includes doing
Battery low-voltage testing circuit, the described input of dry cell low-voltage testing circuit is connected with reverse cut-off circuit 1, output end with
Main control MCU connects.
4. remote-control intelligent gas meter according to claim 1 double power supply circuit it is characterised in that：It also includes lithium
Battery low-voltage testing circuit, the described input of lithium battery low-voltage testing circuit is connected with reverse cut-off circuit 3, output end with
Main control MCU connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055288.7A CN104638757B (en) | 2015-02-03 | 2015-02-03 | Double-power-supply power supplying circuit of remote control intelligent gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055288.7A CN104638757B (en) | 2015-02-03 | 2015-02-03 | Double-power-supply power supplying circuit of remote control intelligent gas meter |
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| Publication Number | Publication Date |
|---|---|
| CN104638757A CN104638757A (en) | 2015-05-20 |
| CN104638757B true CN104638757B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510055288.7A Active CN104638757B (en) | 2015-02-03 | 2015-02-03 | Double-power-supply power supplying circuit of remote control intelligent gas meter |
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| CN (1) | CN104638757B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685063B (en) * | 2016-11-22 | 2019-01-29 | 上海云衡科技有限公司 | Power supply switch circuit |
| CN113472056A (en) * | 2018-06-25 | 2021-10-01 | 安徽鸿凌机电仪表(集团)有限公司 | Dual-power supply system of remote intelligent gas meter |
| CN109546738B (en) * | 2019-01-21 | 2022-02-18 | 成都秦川物联网科技股份有限公司 | Detection device and method for lithium battery standby circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719689A (en) * | 2009-12-16 | 2010-06-02 | 威胜集团有限公司 | Dual power supply switching circuit for electronic electric energy meter |
| CN204517489U (en) * | 2015-02-03 | 2015-07-29 | 成都秦川科技发展有限公司 | The double power supply circuit of remote-control intelligent gas meter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001251860A (en) * | 2000-03-06 | 2001-09-14 | Matsushita Electric Ind Co Ltd | Remote control standby apparatus |
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2015
- 2015-02-03 CN CN201510055288.7A patent/CN104638757B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719689A (en) * | 2009-12-16 | 2010-06-02 | 威胜集团有限公司 | Dual power supply switching circuit for electronic electric energy meter |
| CN204517489U (en) * | 2015-02-03 | 2015-07-29 | 成都秦川科技发展有限公司 | The double power supply circuit of remote-control intelligent gas meter |
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| Publication number | Publication date |
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| CN104638757A (en) | 2015-05-20 |
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Address after: 610199 Longquanyi, Sichuan Province Industrial Park licensing Patentee after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610199 Longquanyi, Sichuan Province Industrial Park licensing Patentee before: Chengdu Taichuan Technology Development Co., Ltd. |