CN209689693U - A kind of apparatus for metering fluids of the detection function with voltage based on NB-IoT module - Google Patents
A kind of apparatus for metering fluids of the detection function with voltage based on NB-IoT module Download PDFInfo
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- CN209689693U CN209689693U CN201822153320.7U CN201822153320U CN209689693U CN 209689693 U CN209689693 U CN 209689693U CN 201822153320 U CN201822153320 U CN 201822153320U CN 209689693 U CN209689693 U CN 209689693U
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Abstract
The utility model discloses a kind of apparatus for metering fluids of detection function with voltage based on NB-IoT module, applied to water meter, fluid metering component is installed in water meter, power supply, control valve, NB-IoT communication component and processor, voltage detecting circuit is also connected between the power supply and the processor, wherein, the voltage detecting circuit includes voltage detector, filter circuit, first resistor, second resistance and 3rd resistor, the input terminal of the voltage detector is connect with the output end of the power supply, output end is connect with the first resistor, the first resistor is grounded after connecting respectively with the second resistance and filter circuit, the output end of the filter circuit is connected to the processor by the 3rd resistor, so as to accurately be detected to supply voltage, to guarantee that apparatus for metering fluids works Under low level state, to reduce influence of the outside electromagnetic interference to apparatus for metering fluids, and malfunction is reduced.
Description
Technical field
The utility model belongs to intellectual water meter measuring equipment technical field, more particularly, to a kind of based on NB-IoT module
The apparatus for metering fluids of detection function with voltage.
Background technique
With smart city, the arriving of big data era, wireless communication will realize all things on earth connection, it is contemplated that the following whole world Internet of Things
Net connection number will be hundred billion grades of epoch.A large amount of object object connection phenomenon has been had already appeared at present, however these connect big multi-pass
The short-range communication techniques such as bluetooth, Wi-Fi are crossed to realize, rather than operator mobile network.In order to meet the business of different Internet of Things
Demand, according to internet of things service feature and mobile communications network feature, 3GPP has carried out enhancing according to narrow band service application scenarios
The technical research of mobile communications network function, to adapt to booming internet of things service demand.Based on cellular narrowband Internet of Things
Net (Narrow Band Internet of Things, NB-IoT) becomes an important branch of all things on earth internet.It is mobile
From the connection of people and people, the connection of Xiang Renyu object and object and object is strided forward for communication, and all things on earth interconnection is inexorable trend.NB-IoT
Can have in widely applied emerging technology, the Internet of Things market for focusing on low-power consumption, extensively covering in the world as one kind
The features such as covering is wide, connection is more, rate is low, at low cost, low in energy consumption, framework is excellent.
By the introducing NB-IoT module in apparatus for metering fluids, the real-time Transmission of data can be realized, but due to passing
The apparatus for metering fluids of system does not have the ability of electromagnetism interference, and extraneous electromagnetic interference in this way can generate low frequency master control borad tight
Ghost image is rung, and interlock circuit is caused distorted signals occur to cause malfunction.In wireless transmission signal or there is outside electromagnetic interference
When, the route cabling around processor can be coupled to interference signal the signal input part of processor, and it is defeated to also result in processor
The level for entering pin is flipped, to generate malfunction.In addition, the low frequency master control borad in existing apparatus for metering fluids is most
Work is in high level state, studies have shown that the electromagnetic interference being subject to is more serious under high level state, and in low level
Under state, the electromagnetic interference being subject to is smaller.
Utility model content
The purpose of this utility model is to provide a kind of fluid meterings of detection function with voltage based on NB-IoT module
Device can accurately detect supply voltage, to guarantee apparatus for metering fluids work under low level state, to reduce
Influence of the outside electromagnetic interference to apparatus for metering fluids, and reduce malfunction.
A kind of fluid metering of detection function with voltage based on NB-IoT module provided by the embodiment of the utility model fills
It sets, is applied to water meter, the apparatus for metering fluids includes fluid metering component, power supply, processor, control valve and NB-IoT logical
Believe component, the fluid metering component, power supply, control valve, NB-IoT communication component be electrically connected respectively with the processor and
Be installed in the water meter, the NB-IoT communication component for realizing the processor and background server data communication,
For data to be analyzed and processed and sent with control instruction, the control valve is set at water pipe the processor, is used
In cutting off or being connected to the water meter and the water pipe under the action of processor, between the power supply and the processor also
It is connected with voltage detecting circuit, wherein the voltage detecting circuit includes voltage detector, filter circuit, first resistor, second
Resistance and 3rd resistor, the input terminal of the voltage detector connect with the output end of the power supply, output end and described first
Resistance connection, the first resistor is grounded after connecting respectively with the second resistance and filter circuit, the filter circuit it is defeated
Outlet is connected to the processor by the 3rd resistor.
Further, the filter circuit includes the first capacitor being connected in parallel and the second capacitor, the first capacitor and
One end after second capacitor is parallel with one another is connected between the first resistor and second resistance, the other end is grounded.
Further, the capacitance of the first capacitor is 20pF, and the capacitance of second capacitor is 0.01uF.
Further, the first light emitting diode, institute are connected between the power supply and the input terminal of the voltage detector
The anode for stating the first light emitting diode is connect with the power supply, cathode is connect with the input terminal of the voltage detector.
Further, the second light emitting diode is connected between the second resistance and the power supply, described second shines
The anode of diode is connect with the power supply, cathode is connect with the second resistance.
Further, the apparatus for metering fluids further includes the pressure stabilizing electricity being set between the power supply and the processor
Road, the voltage regulator circuit include transformer, rectifier bridge, the first filter capacitor, the second filter capacitor and voltage stabilizing chip, wherein institute
The primary coil for stating transformer is connect with the power supply, and the input terminal of the secondary coil of the transformer and the rectifier bridge connects
It connects, one end after first filter capacitor and second filter capacitor are in parallel is respectively with the output end of the rectifier bridge and surely
Input terminal connection, the other end ground connection of chip are pressed, the output end of the voltage stabilizing chip is connected to the processor.
Further, coulometric detector, the coulometric detector and the power supply and processing are also equipped in the water meter
Device is separately connected, and is measured in real time for the remaining capacity to the power supply and be will test result and is sent to the processor.
In conclusion the utility model installs fluid metering component, power supply, control valve, NB-IoT communication in water meter
Component and processor are also connected with voltage detecting circuit between the power supply and the processor, wherein the voltage detecting electricity
Road includes voltage detector, filter circuit, first resistor, second resistance and 3rd resistor, the input terminal of the voltage detector
Connect with the output end of the power supply, output end is connect with the first resistor, the first resistor respectively with it is described second electricity
It being grounded after resistance and filter circuit series connection, the output end of the filter circuit is connected to the processor by the 3rd resistor,
So as to accurately be detected to supply voltage, to guarantee apparatus for metering fluids work under low level state, to reduce
Influence of the outside electromagnetic interference to apparatus for metering fluids, and reduce malfunction.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is provided by the embodiment of the utility model a kind of based on the fluid of the detection function with voltage of NB-IoT module
Measure the functional block diagram of device.
Fig. 2 is a kind of circuit diagram applied to the voltage detecting circuit in Fig. 1 provided by the embodiment of the utility model.
Icon:
Apparatus for metering fluids 100；Fluid metering component 101；Power supply 102；Processor 103；Control valve 104；
NB-IoT communication component 105；Voltage detecting circuit 106；Voltage detector 1061；Filter circuit 1062；
First resistor 1063；Second resistance 1064；3rd resistor 1065；First capacitor 1066；Second capacitor 1067；
First light emitting diode 1068；Second light emitting diode 1069.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's every other embodiment obtained without creative labor, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile it is practical new at this
In the description of type, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relatively important
Property.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in Figure 1, a kind of detection function with voltage based on NB-IoT module provided by the embodiment of the utility model
Apparatus for metering fluids 100 can be applied to water meter.The apparatus for metering fluids 100 may include fluid metering component 101, power supply
102, processor 103, control valve 104 and NB-IoT communication component 105.The fluid metering component 101, power supply 102, control
Valve 104, NB-IoT communication component 105 are electrically connected with the processor 103 respectively, and the fluid metering component 101, power supply
102, control valve 104, NB-IoT communication component 105 and processor 103 are installed in the water meter.Preferably, the processing
Device 103 is single-chip microcontroller or embeded processor.When implementation, the NB-IoT communication component 105 is for realizing the processor 103
With the data communication of background server, the processor 103 to data for being analyzed and processed and sending control instruction, institute
It states control valve 104 to be set at water pipe, for cutting off or being connected to the water meter and described under the action of processor 103
Water pipe.
In the present embodiment, voltage detecting circuit 106 is also connected between the power supply 102 and the processor 103.Such as figure
Shown in 2, the voltage detecting circuit 106 includes voltage detector 1061, filter circuit 1062, the 1063, second electricity of first resistor
Resistance 1064 and 3rd resistor 1065, the input terminal of the voltage detector 1061 connect with the output end of the power supply 102, export
End connect with the first resistor 1063, the first resistor 1063 respectively with the second resistance 1064 and filter circuit 1062
It is grounded after series connection, the output end of the filter circuit 1062 is connect by the 3rd resistor 1065 with the processor 103, energy
It is enough that the voltage of the power supply 102 is accurately detected, to guarantee that apparatus for metering fluids 100 works under low level state, from
And influence of the outside electromagnetic interference to apparatus for metering fluids 100 is reduced, and reduce malfunction.Preferably, the voltage detector
1061 can be high level voltage detector, i.e., when the input voltage of the voltage detector 1061 is higher than preset threshold, example
When such as 3.3V, the output voltage of the voltage detector 1061 is high voltage.
Further, the filter circuit 1062 includes the first capacitor 1066 being connected in parallel and the second capacitor 1067, institute
State first capacitor 1066 and the second capacitor 1067 it is parallel with one another after one end be connected to the first resistor 1063 and second resistance
Between 1064, the other end ground connection.Preferably, the capacitance of the first capacitor 1066 is 20pF, second capacitor 1067
Capacitance is 0.01uF.
In order to show the working condition of the voltage detector 1061, the power supply 102 and the voltage detector 1061
Input terminal between be connected with the first light emitting diode 1068, the anode and the power supply of first light emitting diode 1068
102 connections, cathode are connect with the input terminal of the voltage detector 1061.In addition, in order to show 1064 He of second resistance
The connected state of the power supply 102 is connected with the second light emitting diode between the second resistance 1064 and the power supply 102
1069, the anode of second light emitting diode 1069 is connect with the power supply 102, cathode and the second resistance 1064 connect
It connects.
In order to improve the stability when apparatus for metering fluids 100 work, the apparatus for metering fluids 100 further includes setting
The voltage regulator circuit being placed between the power supply 102 and the processor 103, the voltage regulator circuit include transformer, rectifier bridge,
One filter capacitor, the second filter capacitor and voltage stabilizing chip, wherein the primary coil of the transformer and the power supply 102 connect
It connects, the secondary coil of the transformer is connect with the input terminal of the rectifier bridge, first filter capacitor and second filter
One end after wave capacitor is in parallel is connect with the input terminal of the output end of the rectifier bridge and voltage stabilizing chip respectively, the other end is grounded,
The output end of the voltage stabilizing chip is connect with the processor 103.
Preferably, coulometric detector, the coulometric detector and the power supply 102 and processing are also equipped in the water meter
Device 103 is separately connected, be measured in real time for the remaining capacity to the power supply 102 and will test result be sent to it is described
Processor 103, to issue warning information etc. in the remaining capacity deficiency of the power supply 102.
In conclusion the utility model installed in water meter fluid metering component 101, power supply 102, control valve 104,
NB-IoT communication component 105 and processor 103 are also connected with voltage detecting between the power supply 102 and the processor 103
Circuit 106, wherein the voltage detecting circuit 106 includes voltage detector 1061, filter circuit 1062, first resistor
1063, second resistance 1064 and 3rd resistor 1065, the output of the input terminal of the voltage detector 1061 and the power supply 102
End connection, output end connect with the first resistor 1063, the first resistor 1063 respectively with the second resistance 1064 and
Filter circuit 1062 is grounded after connecting, and the output end of the filter circuit 1062 passes through the 3rd resistor 1065 and the processing
Device 103 connects, so as to accurately be detected to 102 voltage of power supply, to guarantee the work of apparatus for metering fluids 100 in low level
Under state, to reduce influence of the outside electromagnetic interference to apparatus for metering fluids 100, and malfunction is reduced.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of apparatus for metering fluids of the detection function with voltage based on NB-IoT module is applied to water meter, which is characterized in that
The apparatus for metering fluids includes fluid metering component, power supply, processor, control valve and NB-IoT communication component, the stream
Body gauge assembly, power supply, control valve, NB-IoT communication component are electrically connected with the processor respectively and are installed on the water meter
Interior, for realizing the data communication of the processor and background server, the processor is used for the NB-IoT communication component
Data are analyzed and processed and sent with control instruction, the control valve is set at water pipe, in the processor
Under the action of cut off or be connected to the water meter and the water pipe, be also connected with voltage detecting between the power supply and the processor
Circuit, wherein the voltage detecting circuit includes voltage detector, filter circuit, first resistor, second resistance and third electricity
Resistance, the input terminal of the voltage detector is connect with the output end of the power supply, output end is connect with the first resistor, described
First resistor is grounded after connecting respectively with the second resistance and filter circuit, and the output end of the filter circuit passes through described the
Three resistance are connected to the processor.
2. the apparatus for metering fluids of the detection function with voltage according to claim 1 based on NB-IoT module, feature
It is, the filter circuit includes the first capacitor being connected in parallel and the second capacitor, and the first capacitor and the second capacitor are mutual
One end after parallel connection is connected between the first resistor and second resistance, the other end is grounded.
3. the apparatus for metering fluids of the detection function with voltage according to claim 2 based on NB-IoT module, feature
It is, the capacitance of the first capacitor is 20pF, and the capacitance of second capacitor is 0.01uF.
4. the apparatus for metering fluids of the detection function with voltage according to claim 1 based on NB-IoT module, feature
It is, is connected with the first light emitting diode between the power supply and the input terminal of the voltage detector, described first shines two
The anode of pole pipe is connect with the power supply, cathode is connect with the input terminal of the voltage detector.
5. the apparatus for metering fluids of the detection function with voltage according to claim 1 based on NB-IoT module, feature
It is, the second light emitting diode, the anode of second light emitting diode is connected between the second resistance and the power supply
It is connect with the power supply, cathode is connect with the second resistance.
6. the apparatus for metering fluids of the detection function with voltage according to claim 1 based on NB-IoT module, feature
It is, the apparatus for metering fluids further includes the voltage regulator circuit being set between the power supply and the processor, the pressure stabilizing
Circuit includes transformer, rectifier bridge, the first filter capacitor, the second filter capacitor and voltage stabilizing chip, wherein at the beginning of the transformer
Grade coil is connect with the power supply, and the secondary coil of the transformer is connect with the input terminal of the rectifier bridge, first filter
One end input with the output end of the rectifier bridge and voltage stabilizing chip respectively after wave capacitor and second filter capacitor are in parallel
End connection, other end ground connection, the output end of the voltage stabilizing chip are connected to the processor.
7. the apparatus for metering fluids of the detection function with voltage according to claim 1 based on NB-IoT module, feature
It is, coulometric detector is also equipped in the water meter, and the coulometric detector is separately connected with the power supply and processor, is used
It is measured in real time in the remaining capacity to the power supply and will test result and be sent to the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822153320.7U CN209689693U (en) | 2018-12-20 | 2018-12-20 | A kind of apparatus for metering fluids of the detection function with voltage based on NB-IoT module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822153320.7U CN209689693U (en) | 2018-12-20 | 2018-12-20 | A kind of apparatus for metering fluids of the detection function with voltage based on NB-IoT module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209689693U true CN209689693U (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822153320.7U Expired - Fee Related CN209689693U (en) | 2018-12-20 | 2018-12-20 | A kind of apparatus for metering fluids of the detection function with voltage based on NB-IoT module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209689693U (en) |
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2018
- 2018-12-20 CN CN201822153320.7U patent/CN209689693U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 Termination date: 20201220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |