CN107966187A - A kind of tank gage super low-power consumption process circuit and its energy-saving detection method - Google Patents
A kind of tank gage super low-power consumption process circuit and its energy-saving detection method Download PDFInfo
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- CN107966187A CN107966187A CN201711171301.0A CN201711171301A CN107966187A CN 107966187 A CN107966187 A CN 107966187A CN 201711171301 A CN201711171301 A CN 201711171301A CN 107966187 A CN107966187 A CN 107966187A
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- microcontroller
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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
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/80—Arrangements for signal processing
- G01F23/802—Particular electronic circuits for digital processing equipment
- G01F23/804—Particular electronic circuits for digital processing equipment containing circuits handling parameters other than liquid level
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/22—Pc multi processor system
- G05B2219/2214—Multicontrollers, multimicrocomputers, multiprocessing
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25252—Microprocessor
Abstract
The invention discloses a kind of tank gage super low-power consumption process circuit and its energy-saving detection method, including microprocessor, microcontroller, communication module, liquid level sensor module, memory module, 12V batteries, the first power conversion module, SIM card holder, 3V lithium batteries, second source modular converter, wherein：Microcontroller is used for clocking capability, periodically turns on and close power supply；Communication module is used to transmit with the communication of supervisory administrative center and information；Liquid level sensor module is used to measure the depth of liquid level and is quantified；Memory module is used to store the key messages such as liquid level information information, IP address；Power conversion module high efficiency produces two kinds of different voltages.The use of this programme operating current power consumption is microampere order compared to traditional liquid level instrument, compared with the power consumption of several milliamperes of traditional liquid level instrument, it is more than 2 orders of magnitude of lower power consumption, and scheme with advantage of low cost.
Description
Technical field
The present invention relates to technical field of liquid level measurement, more particularly to a kind of tank gage super low-power consumption process circuit and its energy saving
Detection method.
Background technology
Since urban development is maked rapid progress, in Municipal controls flood prevention waterlogging engineering, it is desirable to rivers, lake, reservoir, water
Level monitoring in the hydraulic engineerings such as power station, irrigated area and water delivery, at the same time various regions carrying out smart city construction, also require
The municipal works depth such as tap water, municipal sewage treatment, water on urban streets is measured and monitored, is provided for flood control prevention waterlogging
Exact filling level information.
Tank gage on the market is integrated with liquid level sensor and wireless data communication and is surveyed in the high-performance liquid level of one at present
Measure device, it is possible to achieve to the automatic monitor for continuously of liquid level data, and report to automatically according to time interval set in advance
Center for information management.This means equipment is constantly in working status, although there is part-time device controller to be in dormancy
Pattern, power consumption is slightly lower, since power conversion module is constantly in work and changes that there are certain efficiency, overall power
Still it is not low, to some be difficult to obtain alternating current either it is solar powered can only use battery (lithium battery or lead-acid accumulator) supply
The place of electricity, many human costs can be increased by frequently charging the battery or replace battery, particularly anhydrous for a long time to some
Application scenario (road, tunnel ponding), low power dissipation design is particularly important.
In addition, it is as follows with the most similar technic relization scheme of the present invention, but all there is certain deficiency：
Patent of invention：A kind of sensor circuit of tank gage (invention patent mandate specification CN200920165292.9),
The circuit of design uses bi-processor architecture, i.e. data communication and data sampling circuit is separately designed, distinguished using clock frequency
For 1.8432MHz, 20MHz, data communication is capable of reducing power consumption using low-frequency work clock, data sampling work at high frequencies
To make, the working time is extremely short, and the power consumption than traditional tank gage has further improvement on the whole, but due to being responsible for data communication
Processor be constantly in lower power consumption operating status, plus the transfer efficiency of power supply, also have in terms of low-power consumption processing into one
The optimization space of step.
The content of the invention
In view of the drawbacks described above of the prior art, it is ultralow that the technical problems to be solved by the invention are to provide a kind of tank gage
Power consumption process circuit and its energy-saving detection method, extend the existing tank gage working time.Due to operating power consumption and microprocessor
Working frequency is directly proportional, uses for reference the design philosophy of above-mentioned patent, and is largely improved on the basis of, uses dual processor and double
Battery.
To achieve the above object, the present invention provides a kind of tank gage super low-power consumption process circuit, it is characterised in that：Including
Plastic shell and the circuit board being arranged in plastic shell, the circuit board include microprocessor, microcontroller, communication module, liquid
Level sensor module, memory module, 12V batteries, the first power conversion module, SIM card holder, 3V lithium batteries, second source conversion
Module, the microprocessor input connection liquid level sensor module, second source modular converter, the output end of microprocessor
The first power conversion module is connected, the microprocessor is connected with microcontroller, communication module, memory module, second electricity
Source modular converter input terminal connection microcontroller, 12V batteries, the single-chip microcomputer input connect 3V lithium batteries, and the microcontroller is defeated
Outlet connects second source modular converter, and the first power conversion module input terminal is also connected with 12V batteries, first power supply
Modular converter output terminal connection communication module, the communication module input terminal connect SIM card holder, wherein：
Microprocessor is responsible for communicating with each module, coordinates each module and works in order；
Microcontroller uses single high power capacity 3V lithium battery, and is operated in low-down working frequency, mainly timing work(
Can, and communicated with microprocessor；
Communication module is used to transmit with the communication of supervisory administrative center and information；
Liquid level sensor module is used for the depth for measuring liquid level；
Memory module is used to store liquid level information, IP address key message；
12V battery modules support charging；
Single lithium battery is 1.4AH high power capacity 3V lithium batteries.
A kind of above-mentioned tank gage super low-power consumption process circuit, it is characterised in that：The first power conversion module output
4V voltages, the second source modular converter (10) export 3.3V voltages.
A kind of tank gage super low-power consumption process circuit energy-saving detection method, it is characterised in that comprise the following steps：
Step 1, for super low power consuming single chip processor in quiescent operation (timer does not arrive), microcontroller is not turned on main power source 3.3V,
Microprocessor is not waken up, microprocessor can not open any power module, in addition to microcontroller works normally, remaining chip not work
Do not consume the electric current of 12V batteries, microcontroller internal operation timer, timing time one to immediately turn on (EN1 signal levels by
It is low to become higher), main power source 3.3V wakes up microprocessor；
Step 2, after microprocessor wakes up, (EN2 is opened after the liquid level information of microprocessor collection liquid level sensor module
Signal level is become higher by low) power supply 4.0V for communication module power, it is concurrent that liquid level information is at the same time transmitted to communication module
See off, once receiving transmission successful information, microprocessor immediately closes off (EN2 signal levels are lower by height) power supply 4.0V；
Step 3, microprocessor inform microcontroller by pwm signal, and epicycle periodic duty has been completed, and microcontroller can be with
(EN1 signal levels are lower by height) main power source 3.3V is closed, once closing main power source 3.3V, immediately closes off microprocessor, monoblock
Only have microcontroller running work on circuit board, wait until that timing terminates to start a new wheel circulation always in time status, return
Step 1 is returned to be handled.
Above-mentioned a kind of tank gage super low-power consumption process circuit energy-saving detection method, it is characterised in that the step 3
The pwm signal cycle that microprocessor is sent is not limited to one kind.
A kind of above-mentioned tank gage super low-power consumption process circuit energy-saving detection method, it is characterised in that the communication module
Support eMTC, NB-IoT, GPRS Three models.
The beneficial effects of the invention are as follows：
1) ultralow power consumption, operating current (only microcontroller work) power consumption can be obtained using dual processor and double cell
For microampere (10-6A) level, with several milliamperes (10 of traditional liquid level instrument-3A (microcontroller is in holding state, power module to power consumption)
Deng working) compare, it is more than 2 orders of magnitude of lower power consumption；
2) traditional liquid level instrument is compared, super low power consuming single chip processor and 3V lithium batteries are cheap, have lower cost solution, have
Very strong cost advantage.
It is described further below with reference to the technique effect of design of the attached drawing to the present invention, concrete structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is tank gage super low-power consumption process circuit functional block diagram of the present invention；
Fig. 2 is the measurement process schematic diagram of one embodiment of the invention.
Embodiment
A kind of as shown in Figure 1, tank gage super low-power consumption process circuit, it is characterised in that：Including plastic shell and it is arranged on
Circuit board in plastic shell, the circuit board include microprocessor 1, microcontroller 2, communication module 3, liquid level sensor module 4,
Memory module 5,12V batteries 6, the first power conversion module 7, SIM card holder 8,3V lithium batteries 9, second source modular converter 10, institute
1 input terminal of microprocessor connection liquid level sensor module 4, second source modular converter 10 are stated, 1 output terminal of microprocessor connects
The first power conversion module 7 is connect, the microprocessor 1 is connected with microcontroller 2, communication module 3, memory module 5, and described second
10 input terminal of power conversion module connection microcontroller 2,12V batteries 6,2 input terminal of the microcontroller connection 3V lithium batteries 9 are described
2 output terminal of microcontroller connection second source modular converter 10,7 input terminal of the first power conversion module is also connected with 12V batteries
6, the 7 output terminal connection communication module 3 of the first power conversion module, 3 input terminal of communication module connects SIM card holder 8, its
In：
Microprocessor 1 is responsible for communicating with each module, coordinates each module and works in order；
Microcontroller 2 uses single high power capacity 3V lithium battery, and is operated in low-down working frequency, mainly timing work(
Can, and communicated with microprocessor；
Communication module 3 is used to transmit with the communication of supervisory administrative center and information；
Liquid level sensor module 4 is used for the depth for measuring liquid level；
Memory module 5 is used to store liquid level information, IP address key message；
12V battery modules 6 support charging；
Single lithium battery 9 is 1.4AH high power capacity 3V lithium batteries.
Wherein, super low power consuming single chip processor：Working frequency：0-20MHz, operating current representative value are 8.5 × 10-6A/2.0V,
Support voltage range 2V~5.5V, be constantly in powered operation state and there is low-down power consumption, standby current representative value is 1
×10-9A/2.0V。
Liquid level sensor module is changed by electrical induction device induction level, and the level value of measurement is handled through digital coding,
Digitized sampling, Digital Transmission are realized, by being locally stored, data processing and protocol encapsulation etc., by communication module by liquid
Position information is sent to monitoring center, while the road liquid level information detected is updated to information display screen, reminds pedestrian
Take care with vehicle.
12V battery modules support charging, and charging module is high-grade linear Charge Management controller, and function includes high-precision
Constant pressure, constant flow regulation, battery preliminary filling, battery temperature monitoring, automatic charging termination, internal current detection, reverse blocking are protected, filled
Electricity condition and indicating fault etc.；Using large capacity a new generation lithium battery of solid electrolyte, there is high density energy, high security
And the advantages that long-life, meet prolonged work requirements.
Single lithium battery is 1.4AH high power capacity 3V lithium batteries, and can eliminating power supply conversion, there are intrinsic quiescent current is (reachable
0.2mA) and power supply conversion efficiency problem.The intrinsic voltage of 3V lithium batteries is high, light-weight, small, bigger than energy, voltage is steady,
The features such as discharge performance is good, safety non-pollution.Cryogenic property is preferable, up to 60% or so of room temperature under the conditions of -40 DEG C；
Preferable shelf characteric, normal shelf self-discharge rate is low, safe, the features such as not exploding, is not on fire, environmentally friendly.
Power module has the protection such as low-voltage, high voltage, overcurrent, anti-reverse, and power module uses efficient DC-
DC switching power source chips export 2 kinds of different operating voltages：DC-DC chips produce 3.3V/1A electric currents, 4.0V/2A to meet not
With the needs of modular power source, the power supply that power module is exported to modules such as communication module, liquid level sensor module, memory modules is equal
Need microprocessor to be controlled output by PMOS, carry out low power consumption control, greatly prolong equipment task time.Particularly pair
It is big in T-time consumption electric current in communication module, to avoid reducing emission effciency, it is necessary to install great Rong near communication module
The capacitance of amount is to meet the needs to spark.
As shown in Fig. 2, a kind of tank gage super low-power consumption process circuit energy-saving detection method, it is characterised in that including following
Step：
Step 1, for super low power consuming single chip processor in quiescent operation (timer does not arrive), microcontroller is not turned on main power source 3.3V,
Microprocessor is not waken up, microprocessor can not open any power module, in addition to microcontroller works normally, remaining chip not work
Do not consume the electric current of 12V batteries, microcontroller internal operation timer, timing time one to immediately turn on (EN1 signal levels by
It is low to become higher), main power source 3.3V wakes up microprocessor；
Step 2, after microprocessor wakes up, (EN2 is opened after the liquid level information of microprocessor collection liquid level sensor module
Signal level is become higher by low) power supply 4.0V for communication module power, it is concurrent that liquid level information is at the same time transmitted to communication module
See off, once receiving transmission successful information, microprocessor immediately closes off (EN2 signal levels are lower by height) power supply 4.0V；
Step 3, microprocessor inform microcontroller by pwm signal, and epicycle periodic duty has been completed, and microcontroller can be with
(EN1 signal levels are lower by height) main power source 3.3V is closed, once closing main power source 3.3V, immediately closes off microprocessor, monoblock
Only have microcontroller running work on circuit board, wait until that timing terminates to start a new wheel circulation always in time status, return
Step 1 is returned to be handled.
Microcontroller can also send the cycle that different pwm signal adjustment is periodically sent according to microprocessor.This processing
To some, anhydrous application scenario (is suitable for the low-lying place of urban road, water accumulation part, up concave type viaduct, tunnel to mechanism for a long time
Waterlogging place occurs Deng easy) it is highly effective, the working time can be postponed significantly, used manpower and material resources sparingly, can reach low well
Power consumption effect.
Communication module is used to transmit with the communication of supervisory administrative center and information, supports tri- kinds of moulds of eMTC, NB-IoT, GPRS
Formula, can toggle：EMTC (enhanced machine type communication, enhanced Machine Type Communication)
It is NB-IoT (arrowband Internet of Things, Narrow Band-Internet of with being optimized on framework in existing LTE technologies
Things) it is brand-new design for Internet of Things characteristic.Communication module has following characteristics and advantage：
● low-power consumption：Low power consumption characteristic is that Internet of Things applies an important indicator, and battery cannot be often replaced for some
Equipment and occasion, all kinds of sensor monitoring equipment being such as placed in the remote districts of high mountain wilderness, can extend under same charge
Usage time；
● low cost：For NB-IoT without networking again, radio frequency and antenna are essentially all multiplexing；
● strong link：In the case of same base station, what NB-IoT can be 50-100 times than the offer of existing wireless technology connects
Enter number；
● height covering：NB-IoT in-door covering abilities are strong, 20dB gains lifted, equivalent to improving 100 times of overlay areas
Ability penetrates a wall more so that communication module group also possesses normal communication ability in the place of the weak covering of signal.
The present invention is by the use of super low power consuming single chip processor timer as judging that whether tank gage starts shooting work, gives tank gage
The design method of low-power consumption process circuit, solves the technical problem that existing tank gage is difficult to work long hours, particularly regular liquid
In position monitoring link：Very low power consumption, static working current (only microcontroller work are obtained using super low power consuming single chip processor timer
Make) power consumption is microampere (10-6A) level, with several milliamperes (10 of traditional liquid level instrument-3A (microcontroller is in holding state, electricity to power consumption)
Source module etc. is working) compare, it is more than 2 orders of magnitude of lower power consumption；Compared to traditional liquid level instrument, using microcontroller have it is low into
This programme, has very strong cost advantage.
Preferred embodiment of the invention described in detail above.It should be appreciated that those of ordinary skill in the art without
Need creative work to conceive according to the present invention and make many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (5)
- A kind of 1. tank gage super low-power consumption process circuit, it is characterised in that：Including plastic shell and it is arranged in plastic shell Circuit board, the circuit board include microprocessor (1), microcontroller (2), communication module (3), liquid level sensor module (4), storage Module (5), 12V batteries (6), the first power conversion module (7), SIM card holder (8), 3V lithium batteries (9), second source modulus of conversion Block (10), microprocessor (1) the input terminal connection liquid level sensor module (4), second source modular converter (10) are described micro- Processor (1) output terminal connects the first power conversion module (7), the microprocessor (1) and microcontroller (2), communication module (3), memory module (5) is connected, second source modular converter (10) the input terminal connection microcontroller (2), 12V batteries (6), Microcontroller (2) the input terminal connection 3V lithium batteries (9), microcontroller (2) output terminal connect second source modular converter (10), the first power conversion module (7) input terminal is also connected with 12V batteries (6), and first power conversion module (7) is defeated Outlet connection communication module (3), communication module (3) the input terminal connection SIM card holder (8), wherein：Microprocessor (1) is responsible for communicating with each module, coordinates each module and works in order；Microcontroller (2) uses single high power capacity 3V lithium battery, and is operated in low-down working frequency, mainly timing work( Can, and communicated with microprocessor；Communication module (3) is used to transmit with the communication of supervisory administrative center and information；Liquid level sensor module (4) is used for the depth for measuring liquid level；Memory module (5) is used to store liquid level information, IP address key message；12V battery modules (6) support charge function；Single lithium battery (9) is 1.4AH high power capacity 3V lithium batteries.
- A kind of 2. tank gage super low-power consumption process circuit as claimed in claim 1, it is characterised in that：The first power supply conversion Module (7) exports 4V voltages, and the second source modular converter (10) exports 3.3V voltages.
- 3. a kind of tank gage super low-power consumption process circuit energy-saving detection method, it is characterised in that comprise the following steps：Step 1, for super low power consuming single chip processor in quiescent operation (timer does not arrive), microcontroller is not turned on main power source 3.3V, does not call out Awake microprocessor, microprocessor can not open any power module, and in addition to microcontroller works normally, remaining chip does not work not The electric current of 12V batteries is consumed, microcontroller internal operation timer, (EN1 signal levels are by low change to immediately turning on for timing time one It is high), main power source 3.3V wakes up microprocessor；Step 2, after microprocessor wakes up, (EN2 signals are opened after the liquid level information of microprocessor collection liquid level sensor module Level is become higher by low) power supply 4.0V for communication module power, liquid level information is at the same time transmitted to communication module and is sent out Go, once receiving transmission successful information, microprocessor immediately closes off (EN2 signal levels are lower by height) power supply 4.0V；Step 3, microprocessor inform microcontroller by pwm signal, and epicycle periodic duty has been completed, and microcontroller can close (EN1 signal levels are lower by height) main power source 3.3V, once closing main power source 3.3V, immediately closes off microprocessor, monoblock circuit Only have microcontroller running work on plate, wait until that timing terminates to start a new wheel circulation, return step always in time status Rapid one is handled.
- 4. a kind of tank gage super low-power consumption process circuit energy-saving detection method as claimed in claim 3, it is characterised in that described The pwm signal cycle that the microprocessor of step 3 is sent is not limited to one kind.
- 5. a kind of tank gage super low-power consumption process circuit energy-saving detection method as claimed in claim 3, it is characterised in that described Communication module supports eMTC, NB-IoT, GPRS Three models.
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Cited By (7)
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| CN108494252A (en) * | 2018-05-03 | 2018-09-04 | 广州奥格智能科技有限公司 | A kind of Internet of Things NB-IoT super low-power consumption timed power switch circuits and its detection method |
| CN108494414A (en) * | 2018-05-10 | 2018-09-04 | 武汉中电物联科技有限公司 | Super low-power consumption multimode Internet of Things wireless module |
| CN109520590A (en) * | 2018-12-18 | 2019-03-26 | 北京古大仪表有限公司 | A kind of radar level gauging system and its method of supplying power to |
| CN111540147A (en) * | 2020-02-20 | 2020-08-14 | 四川御智微科技有限公司 | Intelligent monitoring device applied to tree anti-theft monitoring |
| CN112729460A (en) * | 2020-12-28 | 2021-04-30 | 宁波铭瑞中兴电子科技有限公司 | Liquid amount detection method and system applying UPS (uninterrupted Power supply), intelligent terminal and storage medium |
| CN113286993A (en) * | 2018-11-07 | 2021-08-20 | 安泰克安全公司 | Flooding sensor for automatic system |
| CN114440828A (en) * | 2022-01-14 | 2022-05-06 | 重庆永渝检验检测技术有限公司 | Ultra-low power consumption wireless static level height difference measuring method |
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| CN113286993A (en) * | 2018-11-07 | 2021-08-20 | 安泰克安全公司 | Flooding sensor for automatic system |
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| CN111540147B (en) * | 2020-02-20 | 2022-04-26 | 四川御智微科技有限公司 | Intelligent monitoring device applied to tree anti-theft monitoring |
| CN112729460A (en) * | 2020-12-28 | 2021-04-30 | 宁波铭瑞中兴电子科技有限公司 | Liquid amount detection method and system applying UPS (uninterrupted Power supply), intelligent terminal and storage medium |
| CN112729460B (en) * | 2020-12-28 | 2024-03-19 | 宁波铭瑞中兴电子科技有限公司 | Liquid amount detection method and system using UPS (uninterrupted Power supply), intelligent terminal and storage medium |
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Application publication date: 20180427 |