CN110323804A - A kind of acquisition of low power consumption data uploads circuit and method - Google Patents
A kind of acquisition of low power consumption data uploads circuit and method Download PDFInfo
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- CN110323804A CN110323804A CN201910634782.7A CN201910634782A CN110323804A CN 110323804 A CN110323804 A CN 110323804A CN 201910634782 A CN201910634782 A CN 201910634782A CN 110323804 A CN110323804 A CN 110323804A
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- 238000000034 method Methods 0.000 title claims description 17
- 238000004891 communication Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 230000006837 decompression Effects 0.000 claims description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 description 50
- 238000007599 discharging Methods 0.000 description 6
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- 238000004088 simulation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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- 238000005265 energy consumption Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G01N33/18—Water
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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Abstract
The present invention provides a kind of low power consumption data acquisition upload circuit, including a MCU, a power supply, one first detector, a communication module and one first analog switch；First detector and communication module are connected with the MCU；The power supply is connected by first analog switch with first detector, and is powered control to first detector by first analog switch realization；The MCU and communication module pass through the power supply and are powered.The invention has the advantages that the power consumption of complete machine can be can be greatly reduced, this makes when specifically used, only need to can be carried out powering for a long time by battery.
Description
Technical field
The present invention relates to water utilities field, in particular to a kind of low power consumption data acquisition uploads circuit and method.
Background technique
With the continuous improvement of living standards, people become more concerned with the quality of daily drinking water, various purifiers
Constantly enter into the visual field of people.Currently, water purification industry has been primarily present following pain spot problem:
The used filter core in purifier Kaifeng, after a period of time (generally three to seven days) does not use, it is easy at
For the breeding ground of bacteria breed, and the secondary pollution with water is caused, keeps water quality fresh-keeping；In order to guarantee the quality of drinking water, lead to
It often needs to frequently replace filter core or is handled using sterilization technologies such as bacteriostatic activity Carbon Materials, it is higher that this will lead to generation
Water purification cost；Meanwhile existing purifier is not all monitored water quality, is unable to ensure the quality of drinking water being discharged in real time.
In order to solve the problems, such as the above pain spot, the Inlet and outlet water of purifier is carried out data acquisition to upload being an essential link,
It is again a long-term process since data acquisition uploads, how to reduce the power consumption that entire data acquisition uploads circuit is
One problem of urgent need to resolve.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of low power consumption data acquisition and uploads circuit and method, reaches
Reduce the purpose of power consumption.
The present invention is implemented as follows: a kind of low power consumption data acquisition uploads circuit, the circuit includes a MCU, an electricity
Source, one first detector, a communication module and one first analog switch；
First detector and communication module are connected with the MCU；The power supply is simulated by described first
Switch is connected with first detector, and is powered by first analog switch realization to first detector
Control；The MCU and communication module pass through the power supply and are powered.
Further, the circuit further includes one second detector and an analog switch group；Second detector with
The acquisition pin of the MCU is connected；The MCU is connected by the analog switch group with second detector, and is led to
It crosses the analog switch group realization and control is powered to second detector.
Further, the analog switch group include two second analog switches and two third analog switches, described second
Detector includes one the oneth TDS sensor and one the 2nd TDS sensor；The MCU using PIC24FJ64GA306 or
PIC24FJ128GA306 chip；
RB14, RB13 pin of the MCU passes through second analog switch and the first TDS sensor respectively
It is connected, the first TDS sensor is connected with the RB12 pin of the MCU；RB9, RB8 pin of the MCU is distinguished
It is connected by a third analog switch with the 2nd TDS sensor, the 2nd TDS sensor is with the MCU's
RB10 pin is connected.
Further, the circuit further includes flow meters；The flowmeter is connected with the MCU.
Further, the power supply includes a direct current interface, a 3.6V power supply, a battery interface, one first decompression core
Piece, a boost chip, one second decompression chip and a voltage stabilizing chip；The battery interface is connected with the 3.6V power supply；
The direct current electrical interface is connected by the first decompression chip with the 3.6V power supply；The 3.6V power supply and the boosting
Chip is connected, and a 5V power supply is obtained after being boosted by the boost chip, and first analog switch is set to described
Between boost chip and the 5V power supply；The 3.6V power supply is connected with the second decompression chip, and passes through described second
Decompression chip obtains a 3V power supply after being depressured；The 3.6V power supply is connected with the voltage stabilizing chip, and by described steady
Chip is pressed to obtain a 2.5V reference power supply.
Further, the boost chip is MP3422 chip, and the pin EN of the boost chip passes through described first
Analog switch is connected with the 5V power supply.
Further, the communication module is NB-IOT module.
Further, first detector is bit atom water quality sensor.
The present invention is implemented as follows: a kind of low power consumption data acquires method for uploading, the method need to use above-mentioned electricity
Road, which comprises
When the first detector needs to acquire data, boost chip controls the first analog switch and supplies the first detector
Electricity, the first detector acquisition data simultaneously send MCU to, and MCU control communication module uploads onto the server the data of acquisition；?
When one detector does not need acquisition data, boost chip controls the stopping of the first analog switch and is powered to the first detector.
Further, the method also includes:
When the first TDS sensor needs to acquire data, MCU controls one of them second analog switch and passes the first TDS
The first input end of sensor is set to high level, while it is defeated by the second of the first TDS sensor to control another second analog switch
Enter end and is set to low level；First TDS sensor acquisition data simultaneously send MCU to, and MCU controls communication module will be in the data of acquisition
Pass to server；Then, MCU control one of them second analog switch the first input end of the first TDS sensor is set to it is low
Level, while controlling another second analog switch and the second input terminal of the first TDS sensor is set to high level, to offset
The polarity effect of one TDS sensor；When the first TDS sensor does not need acquisition data, MCU controls two the second analog switches
The first input end of first TDS sensor and the second input terminal are set to high level；
When the 2nd TDS sensor needs to acquire data, MCU controls one of third analog switch and passes the 2nd TDS
The first input end of sensor is set to high level, while it is defeated by the second of the 2nd TDS sensor to control another third analog switch
Enter end and is set to low level；2nd TDS sensor acquisition data simultaneously send MCU to, and MCU controls communication module will be in the data of acquisition
Pass to server；Then, MCU control one of third analog switch the first input end of the 2nd TDS sensor is set to it is low
Level, while controlling another third analog switch and the second input terminal of the 2nd TDS sensor is set to high level, to offset
The polarity effect of two TDS sensors；When the 2nd TDS sensor does not need acquisition data, MCU controls two third analog switches
The first input end of 2nd TDS sensor and the second input terminal are set to high level；
Flowmeter acquires data on flows, and data on flows is transferred to MCU, and MCU controls communication module for the flow of acquisition
Data are uploaded onto the server.
Control is powered to the first detector the present invention has the advantage that can realize by the first analog switch
System, i.e., when needing to carry out water quality data acquisition, can open the first analog switch and be powered to the first detector；It is being not required to
When acquiring water quality data, the power supply to the first detector can be closed, therefore, reduction power consumption can be reached to a certain extent
Purpose.Meanwhile analog switch group is set between MCU and the second detector, it, can be with when needing to carry out the acquisition of TDS data
Analog switch group is opened to be powered the second detector；When not needing to carry out the acquisition of TDS data, it can close and be examined to second
Therefore the power supply for surveying device can further decrease the overall power of circuit.Meanwhile the present invention is also come pair using NB-IOT module
Data are uploaded, and NB-IOT module itself has advantage low in energy consumption；Flowmeter passes through step-by-step counting, itself function
Consumption is also relatively low, accordingly it is also possible to further decrease the power consumption of circuit.It can be seen from the above, circuit design through the invention can
The power consumption of complete machine can be greatly reduced, this makes when specifically used, only need to can be carried out powering for a long time by battery.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the schematic block circuit diagram that a kind of low power consumption data acquisition of the present invention uploads circuit.
Fig. 2 is that a kind of circuit theory that low power consumption data acquisition uploads power supply in circuit of the present invention sees figure.
Fig. 3 is to realize to be powered control to the first detector in a kind of low power consumption data acquisition upload circuit of the present invention
Functional block diagram.
Fig. 4 is to realize to be powered control to the second detector in a kind of low power consumption data acquisition upload circuit of the present invention
Functional block diagram.
Description of symbols:
100- circuit, 1-MCU, 2- power supply, 21- direct current electrical interface, 22-3.6V power supply, 23- battery interface, 24- first drop
Chip, 25- boost chip are pressed, 26- second is depressured chip, 27- voltage stabilizing chip, 28-5V power supply, 29-3V power supply, 20-2.5V base
Quasi- power supply, the first detector of 3- (bit atom water quality sensor), 4- communication module (NB-IOT module), the simulation of 5- first are opened
It closes, the second detector of 6-, the first TDS sensor of 61-, the 2nd TDS sensor of 62-, 7- analog switch group, the simulation of 71- second is opened
It closes, 72- third analog switch, 8- flowmeter, 9- water discharging valve.
Specific embodiment
Shown in please referring to Fig.1 to Fig.4, a kind of low power consumption data acquisition of the present invention uploads the preferred embodiment of circuit 100, institute
Stating circuit 100 includes a MCU1, a power supply 2, one first detector 3, a communication module 4 and one first analog switch 5；
First detector 3 and communication module 4 are connected with the MCU1；The power supply 2 passes through described first
Analog switch 5 is connected with first detector 3, and is realized by first analog switch 5 to first detector 3
It is powered control；The MCU1 and communication module 4 are powered by the power supply 2.Wherein, the power supply 2 is used for
Entire circuit 100 is powered；First detector 3 is for acquiring data；The communication module 4 is used for for realizing number
According to upload；First analog switch 5 is for realizing power supply control；The MCU1 is the control core of entire circuit 100, is used
Each device is controlled in realizing.
As known from the above, the present invention between power supply 2 and the first detector 3 using the first analog switch 5 is arranged, so that working as
When needing to carry out data acquisition, the first analog switch 5 can be opened, the first detector 3 is powered, with realize to data into
Row acquisition；When not needing to carry out data acquisition, the power supply to the first detector 3 can be closed, so that it is whole to reach reduction circuit
The purpose of body power consumption.
The circuit 100 further includes one second detector 6 and an analog switch group 7；Second detector 6 with it is described
The acquisition pin of MCU1 is connected；The MCU1 is connected by the analog switch group 7 with second detector 6, and is led to
It crosses the realization of analog switch group 7 and control is powered to second detector 6.The present invention is used to be detected in MCU1 and second
Analog switch group 7 is set between device 6, so that can open analog switch group 7 when needing to carry out data acquisition and detect to second
Device 6 is powered, and is acquired with realizing to data；When not needing to carry out data acquisition, can close to the second detector 6
Power supply, with achieve the purpose that reduce circuit overall power.
Wherein, the analog switch group 7 include two second analog switches 71 and two third analog switches 72, described second
Detector 6 includes one the oneth TDS sensor 61 and one the 2nd TDS sensor 62；The MCU1 uses PIC24FJ64GA306
Or PIC24FJ128GA306 chip；The first TDS sensor 61 and the 2nd TDS sensor 62 are used to acquire the TDS value in water
(i.e. the value of total dissolved solid substance in water) in the specific implementation can be by the first TDS sensor 61 and the 2nd TDS
Sensor 62 is separately positioned on water inlet end and the water outlet of purifier (not shown), to acquire the TDS value at purifier both ends
It is compared, and then will be seen that and filter preceding and filtered water quality difference；
RB14, RB13 pin of the MCU1 is passed by the second analog switch 71 and the first TDS respectively
Sensor 61 is connected, and the first TDS sensor 61 is connected with the RB12 pin of the MCU1；That is, the present invention adopts
Use using RB14, RB13 pin of MCU1 as the analog power of the first TDS sensor 61, and by the second analog switch 71 come into
Row control power supply；Meanwhile the input pin for acquiring the RB12 pin of MCU1 as AD；In specific works, when the first TDS is passed
When sensor 61 needs to carry out data acquisition, MCU1 can control the second analog switch 71 on RB14 pin for the first TDS sensor
61 first input end is set to high level (being set as DC3.0V), while controlling the second analog switch 71 on RB13 pin will
Second input terminal of the first TDS sensor 61 is set to low level (being set as GND)；First TDS sensor 61 can acquire data
And MCU1 is sent to by RB12 pin；After acquisition, MCU1 controls the second analog switch 71 on RB14 pin for first
The first input end of TDS sensor 61 is set to low level (being set as GND), while controlling the second simulation on RB13 pin and opening
It closes 71 and second input terminal of the oneth TDS sensor 61 is set to high level (being set as DC3.0V), and continue the regular hour
(the specific time, which can according to need, to be set), to offset the polarity effect of the first TDS sensor 61；Finally, in the first TDS
When sensor 61 does not need acquisition data, it is defeated by the first of the first TDS sensor 61 that MCU1 controls two the second analog switches 71
Enter end and the second input terminal is set to high level (being disposed as DC3.0V), so that the power consumption of circuit minimizes；
RB9, RB8 pin of the MCU1 is sensed by third analog switch 72 and the 2nd TDS respectively
Device 62 is connected, and the 2nd TDS sensor 62 is connected with the RB10 pin of the MCU1；That is, the present invention uses
Using RB9, RB8 pin of MCU1 as the analog power of the 2nd TDS sensor 62, and controlled by third analog switch 72
System power supply；Meanwhile the input pin for acquiring the RB10 pin of MCU1 as AD；In specific works, when the 2nd TDS sensor
62 when needing to carry out data acquisition, and MCU1 can control the third analog switch 72 on RB9 pin for the of the 2nd TDS sensor 62
One input terminal is set to high level (being set as DC3.0V), while controlling the third analog switch 72 on RB8 pin for the 2nd TDS
Second input terminal of sensor 62 is set to low level (being set as GND)；2nd TDS sensor 62 can acquire data and pass through
RB10 pin sends MCU1 to；After acquisition, MCU1 controls the third analog switch 72 on RB9 pin and senses the 2nd TDS
The first input end of device 62 is set to low level (being set as GND), while controlling the third analog switch 72 on RB8 pin for
Second input terminal of two TDS sensors 62 is set to high level (being set as DC3.0V), and continues regular hour (the specific time
Can according to need and set), to offset the polarity effect of the 2nd TDS sensor 62；Finally, in the 2nd TDS sensor 62
When not needing acquisition data, MCU1 controls two third analog switches 72 for the first input end of the 2nd TDS sensor 62 and the
Two input terminals are set to high level (being disposed as DC3.0V), so that the power consumption of circuit minimizes.
The circuit 100 further includes flow meters 8；The flowmeter 8 is connected with the MCU1.In the specific implementation,
The flowmeter 8 can be connected with the water outlet of purifier, to acquire the flow number of user's water by flowmeter 8
According to, and send the data on flows of acquisition to MCU1.Meanwhile the present invention is in the specific implementation, will pollute to realize
Drinking water emits, and can also include a water discharging valve 9, and water discharging valve 9 is connected with MCU1, which can set
It sets on drainage pipeline (not shown), when detecting that drinking water bred bacterium, MCU1 can automatically control water discharging valve 9 and beat
It opens, the water of pollution is discharged；After the completion of discharge, MCU1 can automatically control the closing of water discharging valve 9.
The power supply 2 includes a direct current interface 21, a 3.6V power supply 22, a battery interface 23, one first decompression chip
24, a boost chip 25, one second decompression chip 26 and a voltage stabilizing chip 27；The battery interface 23 and the 3.6V power supply
22 are connected, which when specifically used, can pass through for being powered to water discharging valve 9 and communication module 4
Battery is accessed in the battery interface 23 to obtain the 3.6V power supply 22；The direct current electrical interface 21 is dropped by described first
Pressure chip 24 is connected with the 3.6V power supply 22, when specifically used, 12V DC can be electrically accessed to the direct current and connect
Mouth 21, then the 3.6V power supply 22 is obtained after being depressured by the first decompression chip 24, the first decompression chip 24
It can be realized using MP1471 chip；The 3.6V power supply 22 is connected with the boost chip 25, and passes through the boosting
Chip 25 obtains a 5V power supply 28 after being boosted, the 5V power supply 28 is for being powered the first detector 3, first mould
Quasi- switch 5 is set between the boost chip 25 and the 5V power supply 28, in the specific implementation, can pass through the first analog switch
Whether the 5 control 5V power supplys 28 are powered；The 3.6V power supply 22 is connected with the second decompression chip 26, and passes through
The second decompression chip 26 obtains a 3V power supply 29 after being depressured, which is used to carry out MCU1 and flowmeter 8
Power supply, the second decompression chip 26 can be realized using MCP1700 chip；The 3.6V power supply 22 and the voltage stabilizing chip
27 are connected, and obtain a 2.5V reference power supply 20 by the voltage stabilizing chip 27, which is used to be MCU1
There is provided normal voltage, realize when, 2.5V reference power supply 20 can be connected with the BR0 pin of MCU1, using as MCU1 into
The reference voltage of row AD conversion, the voltage stabilizing chip 27 can be realized using SGM2200-2.5YN3LG chip.Due to this hair
Bright power supply 2 is provided with direct current electrical interface 21 simultaneously and battery connects 23 mouthfuls, therefore, when specifically used, can be compatible with electricity well
The power supply mode of pond and external power supply.
In addition, it is necessary to explanation: the model of the listed above specific chip enumerated is only for illustrative in the present invention
, it is not used to be defined the scope of the present invention, the present invention in the specific implementation, completely can be according to actual needs
The chip of other models is selected to be substituted, as long as required function may be implemented.Meanwhile passing through MCU1 control valve
Open or close, control communication module 4 upload data and receive flowmeter 8, the first detector 3, the first TDS sensor 61,
The realization program of the data of 2nd TDS sensor 62 acquisition is well-known to those skilled in the art, is without paying creativeness
What labour can be obtained.
The boost chip 25 is MP3422 chip, and the pin EN of the boost chip 25 is opened by first simulation
It closes 5 to be connected with the 5V power supply 28, in the specific implementation, the first analog switch 5 can be controlled by boost chip 25 and carried out
Switch operation.
The communication module 4 is NB-IOT module.The present invention has the advantage that (1) and bluetooth using NB-IOT module
Transmission is compared, and since NB-IOT communication belongs to remote data transmission, when in use, does not need to purifier nearby to go to obtain number
According to；(2) compared with WIFI communication, need not rely on AP hot spot carry out transmitted data on network, be not in no WIFI environment or
The case where data caused by person's network disconnects can not report；(3) compared with bluetooth and WIFI, NB-IOT communication does not need complicated
Configuration process can voluntarily connect network and reported data after only needing device power-up；(4) NB-IOT module itself is low in energy consumption, energy
Enough accomplish to be powered for a long time using battery, this is that bluetooth and WIFI can not accomplish.
First detector 3 is bit atom water quality sensor.When specifically used, bit atom water quality can be passed
Sensor is connected with the water outlet of purifier, to acquire total organic carbon (TOC), chemistry by bit atom water quality sensor
Oxygen demand (COD), Organic substance in water content (uv254) these three water quality datas, bit atom water quality sensor will using serial ports
Data transmission can specifically use the bit atom water quality sensor of this model of WQM01A to MCU1.
A kind of preferred embodiment of low power consumption data acquisition method for uploading of the present invention, the method need to use above-mentioned electricity
Road, which comprises
When the first detector 3 needs to acquire data, boost chip 25 controls the first analog switch 5 to the first detector 3
It is powered, the first detector 3 acquisition data simultaneously send MCU1 to, and MCU1 control communication module 4 uploads to the data of acquisition
Server (not shown)；When the first detector 3 does not need acquisition data, boost chip 25 controls the first analog switch 5 and stops
First detector 3 is powered, to achieve the purpose that reduce power consumption.
In the present invention, in order to further decrease power consumption, the method also includes:
When the first TDS sensor 61 needs to acquire data, MCU1 controls one of them second analog switch 71 for first
The first input end of TDS sensor 61 is set to high level, while controlling another second analog switch 71 for the first TDS sensor
61 the second input terminal is set to low level；First TDS sensor 61 acquisition data simultaneously send MCU1 to, and MCU1 controls communication module
4 upload onto the server the data of acquisition；Then, MCU1 controls one of them second analog switch 71 for the first TDS sensor
61 first input end is set to low level, while controlling another second analog switch 71 for the second of the first TDS sensor 61
Input terminal is set to high level, to offset the polarity effect of the first TDS sensor 61；It does not need to acquire in the first TDS sensor 61
When data, MCU1 controls two the second analog switches 71, and the first input end of the oneth TDS sensor 61 and the second input terminal is equal
It is set to high level, so that the power consumption of circuit be made to minimize；
When the 2nd TDS sensor 62 needs to acquire data, MCU1 controls one of third analog switch 72 for second
The first input end of TDS sensor 62 is set to high level, while controlling another third analog switch 72 for the 2nd TDS sensor
62 the second input terminal is set to low level；2nd TDS sensor 62 acquisition data simultaneously send MCU1 to, and MCU1 controls communication module
4 upload onto the server the data of acquisition；Then, MCU1 controls one of third analog switch 72 for the 2nd TDS sensor
62 first input end is set to low level, while controlling another third analog switch 72 for the second of the 2nd TDS sensor 62
Input terminal is set to high level, to offset the polarity effect of the 2nd TDS sensor 62；It does not need to acquire in the 2nd TDS sensor 62
When data, MCU1 controls two third analog switches 72, and the first input end of the 2nd TDS sensor 62 and the second input terminal is equal
It is set to high level, so that the power consumption of circuit be made to minimize；
Flowmeter 8 acquires data on flows, and data on flows is transferred to MCU1, and MCU1 controls communication module 4 for acquisition
Data on flows is uploaded onto the server.
In conclusion in the specific implementation due to circuit of the present invention, can be realized by the first analog switch 5 to first
Detector 3 is powered control, i.e., when needing to carry out water quality data acquisition, can open the first analog switch 5 and examine to first
Device 3 is surveyed to be powered；When not needing acquisition water quality data, the power supply to the first detector 3, therefore, Ke Yi can be closed
Achieve the purpose that reduce power consumption to a certain extent.Meanwhile analog switch group 7 is set between MCU1 and the second detector 6, when need
When carrying out the acquisition of TDS data, analog switch group 7 can be opened, the second detector 6 is powered；When do not need carry out TDS
When data acquire, the power supply to the second detector 6 can be closed, therefore, the overall power of circuit can be further decreased.Together
When, the present invention also uploads data using NB-IOT module, and NB-IOT module itself has advantage low in energy consumption；
Flowmeter 8 is by step-by-step counting, itself power consumption is also relatively low, accordingly it is also possible to further decrease the power consumption of circuit.By upper
It states it is found that the power consumption of complete machine can be greatly reduced in circuit design through the invention, this makes when specifically used, need to only lead to
Crossing battery can be carried out powering for a long time.
Although specific embodiments of the present invention have been described above, those familiar with the art should be managed
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field should be covered of the invention according to modification and variation equivalent made by spirit of the invention
In scope of the claimed protection.
Claims (10)
1. a kind of low power consumption data acquisition uploads circuit, it is characterised in that: the circuit includes a MCU, a power supply, one first inspection
Survey device, a communication module and one first analog switch；
First detector and communication module are connected with the MCU；The power supply passes through first analog switch
It is connected with first detector, and control is powered to first detector by first analog switch realization
System；The MCU and communication module pass through the power supply and are powered.
2. a kind of low power consumption data acquisition as described in claim 1 uploads circuit, it is characterised in that: the circuit further includes one
Second detector and an analog switch group；Second detector is connected with the acquisition pin of the MCU；The MCU is logical
It crosses the analog switch group to be connected with second detector, and is realized by the analog switch group to second detection
Device is powered control.
3. a kind of low power consumption data acquisition as claimed in claim 2 uploads circuit, it is characterised in that: the analog switch group packet
Include two second analog switches and two third analog switches, second detector includes one the oneth TDS sensor and one the
Two TDS sensors；The MCU uses PIC24FJ64GA306 or PIC24FJ128GA306 chip；
RB14, RB13 pin of the MCU is connected by second analog switch with the first TDS sensor respectively
It connects, the first TDS sensor is connected with the RB12 pin of the MCU；RB9, RB8 pin of the MCU passes through respectively
The one third analog switch is connected with the 2nd TDS sensor, the RB10 of the 2nd the TDS sensor and the MCU
Pin is connected.
4. a kind of low power consumption data acquisition as claimed in claim 1 or 2 uploads circuit, it is characterised in that: the circuit also wraps
Include flow meters；The flowmeter is connected with the MCU.
5. a kind of low power consumption data acquisition as described in claim 1 uploads circuit, it is characterised in that: the power supply includes always
Galvanic electricity interface, a 3.6V power supply, a battery interface, one first decompression chip, a boost chip, one second decompression chip and one
Voltage stabilizing chip；The battery interface is connected with the 3.6V power supply；The direct current electrical interface passes through the first decompression chip
It is connected with the 3.6V power supply；The 3.6V power supply is connected with the boost chip, and is carried out by the boost chip
A 5V power supply is obtained after boosting, first analog switch is set between the boost chip and the 5V power supply；The 3.6V
Power supply is connected with the second decompression chip, and obtains a 3V power supply after being depressured by the second decompression chip；Institute
It states 3.6V power supply to be connected with the voltage stabilizing chip, and a 2.5V reference power supply is obtained by the voltage stabilizing chip.
6. a kind of low power consumption data acquisition as claimed in claim 5 uploads circuit, it is characterised in that: the boost chip is
MP3422 chip, and the pin EN of the boost chip is connected by first analog switch with the 5V power supply.
7. a kind of low power consumption data acquisition as described in claim 1 uploads circuit, it is characterised in that: the communication module is
NB-IOT module.
8. a kind of low power consumption data acquisition as described in claim 1 uploads circuit, it is characterised in that: first detector is
Bit atom water quality sensor.
9. a kind of low power consumption data acquires method for uploading, it is characterised in that: the method need to be used such as any institute of claim 1-8
The circuit stated, which comprises
When the first detector needs to acquire data, boost chip controls the first analog switch and is powered to the first detector,
First detector acquisition data simultaneously send MCU to, and MCU control communication module uploads onto the server the data of acquisition；First
When detector does not need acquisition data, boost chip controls the stopping of the first analog switch and is powered to the first detector.
10. a kind of low power consumption data as claimed in claim 9 acquires method for uploading, it is characterised in that: the method also includes:
When the first TDS sensor needs to acquire data, MCU controls one of them second analog switch for the first TDS sensor
First input end be set to high level, while controlling another second analog switch for the second input terminal of the first TDS sensor
It is set to low level；First TDS sensor acquisition data simultaneously send MCU to, and MCU control communication module uploads to the data of acquisition
Server；Then, MCU controls one of them second analog switch and the first input end of the first TDS sensor is set to low level,
Controlling another second analog switch is set to high level for the second input terminal of the first TDS sensor simultaneously, to offset the first TDS
The polarity effect of sensor；When the first TDS sensor does not need acquisition data, MCU controls two the second analog switches for the
The first input end and the second input terminal of one TDS sensor are set to high level；
When the 2nd TDS sensor needs to acquire data, MCU controls one of third analog switch for the 2nd TDS sensor
First input end be set to high level, while controlling another third analog switch for the second input terminal of the 2nd TDS sensor
It is set to low level；2nd TDS sensor acquisition data simultaneously send MCU to, and MCU control communication module uploads to the data of acquisition
Server；Then, MCU controls one of third analog switch and the first input end of the 2nd TDS sensor is set to low level,
Controlling another third analog switch is set to high level for the second input terminal of the 2nd TDS sensor simultaneously, to offset the 2nd TDS
The polarity effect of sensor；When the 2nd TDS sensor does not need acquisition data, MCU controls two third analog switches for the
The first input end and the second input terminal of two TDS sensors are set to high level；
Flowmeter acquires data on flows, and data on flows is transferred to MCU, and MCU controls communication module for the data on flows of acquisition
It uploads onto the server.
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| CN201910634782.7A CN110323804A (en) | 2019-07-15 | 2019-07-15 | A kind of acquisition of low power consumption data uploads circuit and method |
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