CN108808840A - The dual power supply system of remote transmission intelligent gas meter, flow meter - Google Patents
The dual power supply system of remote transmission intelligent gas meter, flow meter Download PDFInfo
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- CN108808840A CN108808840A CN201810657378.7A CN201810657378A CN108808840A CN 108808840 A CN108808840 A CN 108808840A CN 201810657378 A CN201810657378 A CN 201810657378A CN 108808840 A CN108808840 A CN 108808840A
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- circuit
- power supply
- lithium battery
- voltage
- dry cell
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/36—Arrangements using end-cell switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The dual power supply system of remote transmission intelligent gas meter, flow meter; it is related to gas meter, flow meter technical field, is made of protection circuit 1, protection circuit 2, accumulator, regulator circuit, dry cell voltage detection circuit, dry cell low-voltage alarm circuit, valve driving circuit, lithium battery voltage detection circuit, switching circuit, lithium battery low-voltage alarm circuit, power switching circuit, RF wireless communication modules and main control MCU.The shortcomings that power supply instability is reliable, microcontroller cannot perceive power supply status in time when the present invention overcomes the power reguirements that cannot meet Current wireless communication module in the prior art, dual power supply switching, provide a kind of accumulator temporary power, software-hardware synergism switching remote transmission intelligent gas meter, flow meter dual power supply system.
Description
Technical field：
The present invention relates to gas meter, flow meter technical fields, and in particular to the dual power supply system of remote transmission intelligent gas meter, flow meter.
Background technology：
Remote transmission intelligent gas meter, flow meter preferably resolves the problems such as meter reading of conventional gas table is difficult, charging is inconvenient, obtains increasingly
It is widely applied, remote transmission intelligent gas meter, flow meter is required for independent power supply to supply, and ensures that the reliability of power supply is that it correctly measures, is remote
Pass, control the premise of the operations such as valve.
Traditional intelligent gas meter method of supplying power to：It is a kind of to be connected using 4 No. 5 dry cells of section and steady by low pressure difference linearity
Depressor (LDO) decompression power supply, when battery capacity deficiency, teletransmission wireless module cannot work normally this method, cause remote
Cheng Wufa meter readings can not monitor the problems such as gas meter, flow meter operating status；Another uses the compound lithium battery power supplies of single-unit 3.6V
(patent：A kind of measuring instrument wireless communication device power control system, CN 107359654A), this method relies on single-unit
3.6V lithium batteries, capacity is limited, cannot accomplish to be changed without battery in the life cycle of gas meter, flow meter；And compared to dry cell,
Replace cost bigger, the complexity higher of lithium battery；In addition with the use of gas meter, flow meter, the voltage of lithium battery continuously decreases, no
The power reguirements of wireless communication module such as GPRS, NB-IOT can be met；If using booster circuit, circuit control can be brought complicated
The increase of degree and energy loss；
And current existing intelligent gas meter dual power supply method：No. 5 dry cells and single-unit 3.6V are generally saved using 1-4
Lithium battery is connected to same LDO by a diode respectively, by exporting to microcontroller (MCU) and peripheral interface power supply for LDO
(patent：The intelligent gas meter of dual power supply, CN 201964917U；Dual power supply device, CN 201937324U), still
This method has the following disadvantages：
Since there are larger pressure drops for diode, when internal battery is powered, can not ensure wireless communication module such as GPRS,
NB-IOT powers reliable and stable；
The power supply of main battery and reserve battery is automatically switched in also a kind of combination by field-effect tube by hardware circuit
(patent：A kind of gas meter, flow meter or water meter dual power supply device, CN 205911822U),
This method has the following disadvantages：When main battery and reserve battery switch, circuit voltage is unstable, leads to combustion gas
Table cisco unity malfunction during power switching；Microcontroller can not perceive battery status, cannot actively switch power supply in time.
And Chinese patent：The double power supply circuit of remote-control intelligent gas meter, method disclosed in CN 104638757B
It has the following disadvantages：When main battery and reserve battery switch, circuit voltage is unstable, causes gas meter, flow meter in power switching process
Middle cisco unity malfunction；It can only be switched over according to the characteristic of hardware circuit, microcontroller cannot carry out switching circuit effective
Control.
Invention content：
Technical problem to be solved by the present invention lies in overcome that Current wireless communication module cannot be met in the prior art
The shortcomings that power supply instability is reliable, microcontroller cannot perceive power supply status in time when power reguirements, dual power supply switching, provides one
The dual power supply system for the remote transmission intelligent gas meter, flow meter that kind accumulator temporary power, software-hardware synergism switch.
A kind of dual power supply system of remote transmission intelligent gas meter, flow meter, by protection circuit 1, protection circuit 2, accumulator, steady
Volt circuit, dry cell voltage detection circuit, dry cell low-voltage alarm circuit, valve driving circuit, lithium battery voltage detection electricity
Road, switching circuit, lithium battery low-voltage alarm circuit, power switching circuit, RF wireless communication modules and main control MCU composition；
Wherein regulator circuit exports 3.6V by low-power consumption LDO, and accumulator is mainly by super capacitor, voltage comparator, three
The voltage detecting circuit of pole pipe composition, dry cell and lithium battery is acquired by main control MCU after being divided by precision resistance and is calculated, dry cell
It is made of low power consumption voltage detection chip with the low-voltage alarm circuit of lithium battery, power switching circuit and switching circuit are imitated by field
It should manage and the compositions such as triode；
MCU is mainly responsible for the voltage electricity relevant information of detection dry cell and lithium battery, and promptly responds and actively cut
Power supply is changed, while switch control, wherein dry cell voltage range 5.0-6.7V can be carried out to the power supply of wireless communication module,
Lithium battery uses the compound lithium battery of 3.6V single-units；
Wherein circuit 2 is protected in lithium battery connection, is connected with lithium battery voltage detection circuit on protection circuit 2 and lithium battery is low
Voltage alarm circuit, while lithium battery voltage detection circuit and lithium battery low-voltage alarm circuit being connected with main control MCU, it protects
Protection circuit 2 is gone back while being connected on power switching circuit；
The protection circuit 1 of dry cell connection simultaneously, protects and is connected with the low electricity of dry cell voltage detection circuit dry cell on circuit 1
Warning circuit is pressed, while dry cell voltage detection circuit and dry cell low-voltage alarm circuit being connected with main control MCU, and
It also is connected with regulator circuit, accumulator and valve driving circuit on protection circuit 1, regulator circuit therein is connected to power supply
In switching circuit, accumulator is connected with power switching circuit, main control MCU and valve driving circuit, valve driving circuit and confession
Electrical switching circuit is connected with main control MCU；
Switching circuit and RF wireless modules are also associated on power switching circuit；
Its working principle is that：No matter select dry cell or lithium battery for system power supply, system master MCU is preferentially by switching
Circuit is first powered, and protection circuit 1, protection circuit 2 mainly prevent from countercurrently damaging circuit in the case of reverse power connection, to ensure
The crushing of system minimum, protection circuit are made of field-effect tube, and battery powered in outside, accumulator can also store
Certain electricity；Accumulator is mainly made of voltage comparator and triode and super capacitor, when super capacitor both end voltage is small
When setting the voltage value of voltage comparator, triode ON charges for super capacitor, otherwise triode is by charging terminates.
The main function of accumulator is, in the case of external cell power down, what system can be smooth excessively arrives another state, protects
Card system still has certain electricity to make corresponding actions, such as closes valve transfer stand-by power supply and reported by wireless module
Current state etc.；
The relevant parameter of duplex feeding power supply is detected by main control MCU, is carried out circuit switching, is powered for whole system,
Preferentially dry cell is selected to be powered for whole system in the case where detecting dry battery power electricity abundance in main control MCU, lithium
Battery as stand-by power source, when dry cell be not present or not enough power supply in the case of, system makes corresponding actions and switches lithium
Battery is powered as stand-by power supply for whole system；
To ensure that the voltage of dry cell and lithium battery accurately acquires, is divided using high-precision precision resistance, select suitable resistance
The low-power consumption of value, that is, guarantee system also improves the precision of voltage acquisition, while using ultralow work(to dry cell and lithium battery
The high-accuracy voltage threshold detection circuit of consumption, when detecting less than threshold voltage, circuit meeting automatic feedback information is to master
Control MCU makes respective handling；
Power switching circuit is made of field-effect tube and triode, when dry cell and lithium battery all in the presence of master control
MCU can carry out switch control to the power supply circuit of lithium battery, and to ensure system lowest power consumption, the power supply of wireless module also can be by
MCU carries out switch control, and respective switch circuit is opened when needing communication and is used to power to wireless module, after communication
Respective switch circuit is closed, ensures the least in power-consuming of system.
Advantage or good effect possessed by the invention compared with prior art：
1, super capacitor energy-storage circuit
In external power supply or internal electric source electricity abundance, electric energy is automatically stored；When external power supply not enough power supply, provide
Temporary power in handoff procedure；When external power supply and all inadequate internal electric source electricity, provide close the energy consumption such as valve compared with
The power supply of big operation；
That 2, powers takes over seamlessly
Based on super capacitor energy-storage circuit, it can realize and the steady of entire circuit during internal electric source is switched to by external power supply
Fixed power supply avoids the electric current shake for occurring big in circuit, realizes taking over seamlessly for power supply；
3, the real-time perception of outside/built-in power state
Pass through voltage detecting circuit and power-fail detection circuit, the electricity of MCU energy real-time perception external power supply and internal electric source
State, and power switching circuit is controlled according to corresponding status information；
4, the software-hardware synergism switching of circuit power supply
Power switching circuit has very strong flexibility, is realized and is automatically switched by hardware circuit under default control signal；
When MCU perceives the abnormality of power supply, actively power switching circuit can be controlled, determined by a certain in dual power supply
Road powers.
Description of the drawings
Fig. 1 is a kind of dual power supply method system frame diagram of remote transmission intelligent gas meter, flow meter.
Specific implementation mode：
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific attached drawing and example are closed, the present invention is further explained.
Embodiment 1：A kind of dual power supply system of remote transmission intelligent gas meter, flow meter, by protection circuit 1, protection circuit 2, energy storage
Circuit, regulator circuit, dry cell voltage detection circuit, dry cell low-voltage alarm circuit, valve driving circuit, lithium battery voltage
Detection circuit, switching circuit, lithium battery low-voltage alarm circuit, power switching circuit, RF wireless communication modules and main control MCU group
At；
Wherein regulator circuit exports 3.6V by low-power consumption LDO, and accumulator is mainly by super capacitor, voltage comparator, three
The voltage detecting circuit of the compositions such as pole pipe, dry cell and lithium battery is acquired by main control MCU after being divided by precision resistance and is calculated, and does electricity
The low-voltage alarm circuit of pond and lithium battery is made of low power consumption voltage detection chip, and power switching circuit and switching circuit are by field
The compositions such as effect pipe and triode；
MCU is mainly responsible for the voltage electricity relevant information of detection dry cell and lithium battery, and promptly responds and actively cut
Power supply is changed, while switch control, wherein dry cell voltage range 5.0-6.7V can be carried out to the power supply of wireless communication module,
Lithium battery uses the compound lithium battery of 3.6V single-units.
Embodiment 2：Lithium battery connection protection circuit 2, protects and is connected with lithium battery voltage detection circuit and lithium electricity on circuit 2
Pond low-voltage alarm circuit, while lithium battery voltage detection circuit and lithium battery low-voltage alarm circuit being connected with main control MCU
It connects, protection circuit 2 is gone back while being connected on power switching circuit；
The protection circuit 1 of dry cell connection simultaneously, protects and is connected with the low electricity of dry cell voltage detection circuit dry cell on circuit 1
Warning circuit is pressed, while dry cell voltage detection circuit and dry cell low-voltage alarm circuit being connected with main control MCU, and
It also is connected with regulator circuit, accumulator and valve driving circuit on protection circuit 1, regulator circuit therein is connected to power supply
In switching circuit, accumulator is connected with power switching circuit, main control MCU and valve driving circuit, valve driving circuit and confession
Electrical switching circuit is connected with main control MCU；
Switching circuit and RF wireless modules are also associated on power switching circuit.
Embodiment 3：
No matter select dry cell or lithium battery for system power supply, system master MCU is preferentially first powered by switching circuit, is protected
Protection circuit 1, protection circuit 2 mainly prevent from countercurrently damaging circuit in the case of reverse power connection, to ensure the pressure of system minimum
Damage, protection circuit are made of field-effect tube, and battery powered in outside, accumulator can also store certain electricity；Storage
Energy circuit is mainly made of voltage comparator and triode and super capacitor, when super capacitor both end voltage is less than setting voltage ratio
Compared with device voltage value when, triode ON is super capacitor charging, otherwise triode is by charging terminates.The master of accumulator
Acting on is, in the case of external cell power down, what system can be smooth excessively arrives another state, and guarantee system still has
Certain electricity makes corresponding actions, such as closes valve transfer stand-by power supply and report current state etc. by wireless module
Deng；
The relevant parameter of duplex feeding power supply is detected by main control MCU, is carried out circuit switching, is powered for whole system,
Preferentially dry cell is selected to be powered for whole system in the case where detecting dry battery power electricity abundance in main control MCU, lithium
Battery as stand-by power source, when dry cell be not present or not enough power supply in the case of, system makes corresponding actions and switches lithium
Battery is powered as stand-by power supply for whole system；
To ensure that the voltage of dry cell and lithium battery accurately acquires, is divided using high-precision precision resistance, select suitable resistance
The low-power consumption of value, that is, guarantee system also improves the precision of voltage acquisition, while using ultralow work(to dry cell and lithium battery
The high-accuracy voltage threshold detection circuit of consumption, when detecting less than threshold voltage, circuit meeting automatic feedback information is to master
Control MCU makes respective handling.
Power switching circuit is made of field-effect tube and triode, when dry cell and lithium battery all in the presence of master control
MCU can carry out switch control to the power supply circuit of lithium battery, and to ensure system lowest power consumption, the power supply of wireless module also can be by
MCU carries out switch control, and respective switch circuit is opened when needing communication and is used to power to wireless module, after communication
Respective switch circuit is closed, ensures the least in power-consuming of system.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. the dual power supply system of remote transmission intelligent gas meter, flow meter, it is characterised in that：By protection circuit 1, protection circuit 2, energy storage electricity
Road, regulator circuit, dry cell voltage detection circuit, dry cell low-voltage alarm circuit, valve driving circuit, lithium battery voltage inspection
Slowdown monitoring circuit, switching circuit, lithium battery low-voltage alarm circuit, power switching circuit, RF wireless communication modules and main control MCU group
At.
2. the dual power supply system of remote transmission intelligent gas meter, flow meter according to claim 1, it is characterised in that：Lithium battery connects
Circuit 2 is protected, protects and is connected with lithium battery voltage detection circuit and lithium battery low-voltage alarm circuit on circuit 2, while by lithium
Battery voltage detection circuit and lithium battery low-voltage alarm circuit are connected with main control MCU, and protection circuit 2 is gone back while being connected to confession
In electrical switching circuit；
Dry cell connection protection circuit 1, protects and is connected with dry cell voltage detection circuit dry cell low-voltage alarm electricity on circuit 1
Road, while dry cell voltage detection circuit and dry cell low-voltage alarm circuit being connected with main control MCU, and also protecting
Regulator circuit, accumulator and valve driving circuit are connected on circuit 1, regulator circuit therein is connected to power switching circuit
On, accumulator is connected with power switching circuit, main control MCU and valve driving circuit, valve driving circuit and power switching electricity
Road is connected with main control MCU.
3. the dual power supply system of remote transmission intelligent gas meter, flow meter according to claim 1, it is characterised in that：The voltage stabilizing electricity
It route low-power consumption LDO and exports 3.6V.
4. the dual power supply system of remote transmission intelligent gas meter, flow meter according to claim 1, it is characterised in that：The energy storage electricity
Road includes super capacitor, voltage comparator, triode.
5. the dual power supply system of remote transmission intelligent gas meter, flow meter according to claim 1, it is characterised in that：The dry cell
Voltage detecting circuit and lithium battery voltage detection circuit are acquired by main control MCU after being divided by precision resistance and are calculated.
6. the dual power supply system of remote transmission intelligent gas meter, flow meter according to claim 1, it is characterised in that：The dry cell
Low-voltage alarm circuit and lithium battery low-voltage alarm circuit are made of low power consumption voltage detection chip, power switching circuit and are opened
Powered-down routing field-effect tube and triode are constituted.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767247.6A CN113472056A (en) | 2018-06-25 | 2018-06-25 | Dual-power supply system of remote intelligent gas meter |
| CN201810657378.7A CN108808840A (en) | 2018-06-25 | 2018-06-25 | The dual power supply system of remote transmission intelligent gas meter, flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810657378.7A CN108808840A (en) | 2018-06-25 | 2018-06-25 | The dual power supply system of remote transmission intelligent gas meter, flow meter |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110767247.6A Division CN113472056A (en) | 2018-06-25 | 2018-06-25 | Dual-power supply system of remote intelligent gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108808840A true CN108808840A (en) | 2018-11-13 |
Family
ID=64085120
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110767247.6A Pending CN113472056A (en) | 2018-06-25 | 2018-06-25 | Dual-power supply system of remote intelligent gas meter |
| CN201810657378.7A Pending CN108808840A (en) | 2018-06-25 | 2018-06-25 | The dual power supply system of remote transmission intelligent gas meter, flow meter |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110767247.6A Pending CN113472056A (en) | 2018-06-25 | 2018-06-25 | Dual-power supply system of remote intelligent gas meter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110209090A (en) * | 2019-06-14 | 2019-09-06 | 国网江苏省电力有限公司常州供电分公司 | Intelligent cable well lid |
| CN110223496A (en) * | 2019-07-09 | 2019-09-10 | 杭州博联智能科技股份有限公司 | Sensor-based method for realizing low power consumption, device, terminal, medium and system |
| CN110264694A (en) * | 2019-07-09 | 2019-09-20 | 杭州博联智能科技股份有限公司 | Circuit, method, WIFI module and remote controler are realized in low-power consumption |
| CN110286618A (en) * | 2019-06-04 | 2019-09-27 | 珠海华裕鑫科技有限公司 | A kind of energy-saving management system and method for intellectual water meter |
| CN110351817A (en) * | 2019-07-09 | 2019-10-18 | 杭州博联智能科技股份有限公司 | Method for realizing low power consumption, device, terminal, medium and wireless telecommunication system |
| CN111693886A (en) * | 2020-06-03 | 2020-09-22 | 艾特仪表科技（深圳）有限公司 | Power monitoring and control circuit of intelligent metering instrument of Internet of things |
| WO2024021892A1 (en) * | 2022-07-27 | 2024-02-01 | 上海飞奥燃气设备有限公司 | Hybrid super pulse capacitor power supply circuit of gas meter |
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| CN201903927U (en) * | 2010-12-28 | 2011-07-20 | 郑州创源智能设备有限公司 | Wireless remote transmission IC card intelligent gas meter |
| CN104638757A (en) * | 2015-02-03 | 2015-05-20 | 成都秦川科技发展有限公司 | Double-power-supply power supplying circuit of remote control intelligent gas meter |
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| CN204788542U (en) * | 2015-07-16 | 2015-11-18 | 郑州创源智能设备有限公司 | Mode switch's that supply power direct -reading thing networking gas table more |
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| CN101841184A (en) * | 2010-03-12 | 2010-09-22 | 英华达（南京）科技有限公司 | Power supply switching device and method thereof |
| CN201903927U (en) * | 2010-12-28 | 2011-07-20 | 郑州创源智能设备有限公司 | Wireless remote transmission IC card intelligent gas meter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286618A (en) * | 2019-06-04 | 2019-09-27 | 珠海华裕鑫科技有限公司 | A kind of energy-saving management system and method for intellectual water meter |
| CN110209090A (en) * | 2019-06-14 | 2019-09-06 | 国网江苏省电力有限公司常州供电分公司 | Intelligent cable well lid |
| CN110223496A (en) * | 2019-07-09 | 2019-09-10 | 杭州博联智能科技股份有限公司 | Sensor-based method for realizing low power consumption, device, terminal, medium and system |
| CN110264694A (en) * | 2019-07-09 | 2019-09-20 | 杭州博联智能科技股份有限公司 | Circuit, method, WIFI module and remote controler are realized in low-power consumption |
| CN110351817A (en) * | 2019-07-09 | 2019-10-18 | 杭州博联智能科技股份有限公司 | Method for realizing low power consumption, device, terminal, medium and wireless telecommunication system |
| CN111693886A (en) * | 2020-06-03 | 2020-09-22 | 艾特仪表科技（深圳）有限公司 | Power monitoring and control circuit of intelligent metering instrument of Internet of things |
| WO2024021892A1 (en) * | 2022-07-27 | 2024-02-01 | 上海飞奥燃气设备有限公司 | Hybrid super pulse capacitor power supply circuit of gas meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113472056A (en) | 2021-10-01 |
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Application publication date: 20181113 |
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| RJ01 | Rejection of invention patent application after publication |