CN206440320U - Electronic remote transmission water meter and water meter system - Google Patents
Electronic remote transmission water meter and water meter system Download PDFInfo
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- CN206440320U CN206440320U CN201621370419.7U CN201621370419U CN206440320U CN 206440320 U CN206440320 U CN 206440320U CN 201621370419 U CN201621370419 U CN 201621370419U CN 206440320 U CN206440320 U CN 206440320U
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Abstract
The utility model embodiment provides a kind of electronic remote transmission water meter and water meter system, and the electronic remote transmission water meter includes flow monitoring and computing unit, valve control operating unit, water meter measurement base table and control unit.The flow monitoring and computing unit, the valve control operating unit are connected with the control process unit respectively.The flow monitoring and computing unit, the valve control operating unit are connected with the essentic-water-meter respectively.The flow monitoring and computing unit are monitored and calculated the water-carrying capacity for flowing through the electronic remote transmission water meter by the water meter measurement base table.The water-carrying capacity that the control process unit is calculated according to the flow monitoring and computing unit is controlled to the valve control operating unit, the valve control operating unit is adjusted to the through-hole aperture of the valve in the water meter measurement base table and flows through the water-carrying capacity of the electronic remote transmission water meter to change according to the control of the control process unit.The technical solution of the utility model can be with the through-hole aperture of control valve, so that Intelligent adjustment water-carrying capacity, it is ensured that stable with water.
Description
Technical field
The utility model is related to Internet of Things field, in particular to a kind of electronic remote transmission water meter and water meter system.
Background technology
Water meter in the past is all by the way of manual metering, to expend very big manpower.Electronic remote transmission water meter is used as one
New water meter is planted, traditional manual metering mode is instead of with full automatic meter reading method.
Electronic remote transmission water meter in the market, generally with pre-payment, remote switch valve function, that is, uses and supplements valve opening with money
Using, supplement expense (or supplementing water with money) with money and be finished and just actively close the pattern of valve.But because of hydraulic pressure, using amount total amount difference, or
Person is water use peak, the difference with water low ebb, often results in overload or flow is too small.Being also frequently present floor difference makes
Each user is variant using hydraulic pressure, flow is small when big during water-carrying capacity when also many reasons such as inconsistent can cause user's water,
Even there is the old water pipe booster caused by long-term overload, and assignment of traffic is not caused by the low hardware factor of story height
Uniformly, causing the long-term flow of individual user relatively low etc., phenomenon occurs.Although some current electronic remote transmission water meters have overload
Alarm, the function of even directly closing valve, but the just conventional water of user can be badly influenced.
Utility model content
In order to overcome above-mentioned deficiency of the prior art, technical problem to be solved in the utility model is to provide a kind of electricity
Sub- remote transmitting water meter and water meter system, it is capable of the through-hole aperture of control valve outlet pass, so that Intelligent adjustment water-carrying capacity, it is ensured that use
Water is stable.
The utility model preferred embodiment provides a kind of electronic remote transmission water meter, and the electronic remote transmission water meter includes：Flow
Monitoring and computing unit, valve control operating unit, water meter measurement base table and control unit；
The flow monitoring and computing unit, the valve control operating unit are connected with the control process unit respectively；
The flow monitoring and computing unit, the valve control operating unit are connected with the water meter measurement base table respectively；
The flow monitoring and computing unit, which are monitored and calculated by the water meter measurement base table, flows through the electronic long-distance transmission
The water-carrying capacity of water meter；
The water-carrying capacity that the control process unit is calculated according to the flow monitoring and computing unit is operated to the valve control
Unit is controlled；
The valve control operating unit is according to the control of the control process unit, to the valve in the water meter measurement base table
Through-hole aperture be adjusted and flow through the water-carrying capacity of the electronic remote transmission water meter to change.
In the utility model preferred embodiment, the water meter measurement base table rotates calculating by the character wheel of counter and flowed through
The water-carrying capacity of the electronic remote transmission water meter, produces mechanical metering signal, and the flow monitoring and computing unit receive the machinery
Metering signal.
In the utility model preferred embodiment, the flow monitoring and computing unit send the water meter measurement base table
Mechanical metering signal be converted to electric signal, so that the control process unit is handled.
In the utility model preferred embodiment, the electronic remote transmission water meter also includes：Radio frequency transmission unit；
The radio frequency transmission unit is connected with the control process unit, for setting up the electronic remote transmission water meter and distal end
Data communication between server.
In the utility model preferred embodiment, the electronic remote transmission water meter also includes：Clock unit；
The clock unit is connected with the control process unit, and the electronic remote transmission water meter is carried out for producing clock
Time management；
The clock unit is additionally operable to the standard time sent according to the far-end server, to the electronic remote transmission water meter
In time calibrated.
In the utility model preferred embodiment, the electronic remote transmission water meter also includes：Data storage cell；
The data storage cell is connected with the control process unit；
The data storage cell is stored with the historical record of the water-carrying capacity for flowing through the electronic remote transmission water meter, and country's mark
Accurate water-carrying capacity；
Historical record and country of the control process unit based on the water-carrying capacity for flowing through the electronic remote transmission water meter
The water-carrying capacity of standard calculates conventional water-carrying capacity, and with reference to currently flowing through the water-carrying capacity of the electronic remote transmission water meter to the water meter
The through-hole aperture of valve in amount base table is adjusted.
In the utility model preferred embodiment, the electronic remote transmission water meter also includes：Display unit；
The display unit is connected with the control process unit, the information for showing the electronic remote transmission water meter.
In the utility model preferred embodiment, the electronic remote transmission water meter also includes：Control button；
The control button is used to select the details in the display electronic remote transmission water meter classification information.
In the utility model preferred embodiment, the electronic remote transmission water meter also includes：Power subsystem；
The power subsystem is used to provide electric energy for the electronic remote transmission water meter, so that the normal work of the electronic remote transmission water meter
Make.
The utility model preferred embodiment additionally provides a kind of water meter system, and the water meter system includes above-mentioned electronic long-distance transmission
Water meter.
In terms of existing technologies, the utility model is provided electronic remote transmission water meter and water meter system, have with following
Beneficial effect：
Flow monitoring and computing unit, valve control operating unit are connected with control process unit respectively, flow monitoring and calculating
Unit, valve control operating unit are connected with water meter measurement base table respectively.Flow monitoring and computing unit are supervised by water meter measurement base table
The water-carrying capacity for flowing through the electronic remote transmission water meter is surveyed and calculates, control process unit is calculated according to flow monitoring and computing unit
Water-carrying capacity is controlled to valve control operating unit.Valve control operating unit is according to the control of control process unit, to the water meter
The water-carrying capacity that electronic remote transmission water meter is flowed through with change is adjusted in the through-hole aperture of valve in amount base table.So as to Intelligent adjustment water
Flow, it is ensured that stable with water.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
One of structural schematic block diagram of electronic remote transmission water meter that Fig. 1 provides for the utility model embodiment.
The two of the structural schematic block diagram for the electronic remote transmission water meter that Fig. 2 provides for the utility model embodiment.
The three of the structural schematic block diagram for the electronic remote transmission water meter that Fig. 3 provides for the utility model embodiment.
The four of the structural schematic block diagram for the electronic remote transmission water meter that Fig. 4 provides for the utility model embodiment.
Icon：100- electronic remote transmission water meters；110- control process units；120- flow monitorings and computing unit；130- valves
Control operating unit；140- water meter measurement base tables；150- radio frequency transmission units；160- clock units；170- data storage cells；
180- display units；190- power subsystems.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or
It is the orientation or position relationship usually put when the utility model product is used, is for only for ease of description the utility model and letter
Change description, rather than indicate or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for area
Divide description, and it is not intended that indicating or implying relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to that its direction, with respect to more level for " vertical ", is not the expression structure
Must be fully horizontal, but can be slightly tilted.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or be integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
How a kind of electronic remote transmission water meter and water meter system of Intelligent adjustment water-carrying capacity are provided, to those skilled in the art
Speech is the technical problem for being badly in need of solving.
Fig. 1 is refer to, Fig. 1 is that the agent structure for the electronic remote transmission water meter 100 that the utility model preferred embodiment is provided is shown
It is intended to.Electronic remote transmission water meter 100 described in the utility model embodiment has the functions such as real-time meter reading, remote control.The electricity
Sub- remote transmitting water meter 100 includes：Control process unit 110, flow monitoring and computing unit 120, valve control operating unit 130 and water meter
Measure base table 140.The flow monitoring and computing unit 120, the valve control operating unit 130 respectively with control process unit
110 connection, the flow monitoring and computing unit 120, the valve control operating unit 130 respectively with the water meter measurement base table
140 connections.
The flow monitoring and computing unit 120, which are monitored and calculated by the water meter measurement base table 140, flows through the electricity
The water-carrying capacity of sub- remote transmitting water meter 100.
The water meter measurement base table 140 includes a counter, and the counter includes character wheel.Wherein, the counter is
Mechanical counter.The water meter measurement base table 140 is connected with the valve control operating unit 130, flows through the electronic remote transmission water meter
100 water impeller is rotated, and then drives character wheel to rotate by reducing gear, produces mechanical metering signal.The flow prison
Survey and computing unit 120 receives the mechanical metering signal.
The mechanical metering signal that the flow monitoring and computing unit 120 send the water meter measurement base table 140 is changed
For electric signal.The control process unit 110 recognizes the electric signal, obtains the flow information that the electric signal is included.
The water-carrying capacity that the control process unit 110 is calculated according to the flow monitoring and computing unit 120 is to the valve
Control operating unit 130 is controlled.
The water meter measurement base table 140 also includes a valve, and the valve control operating unit 130 is according to the control process list
The control of member 110, is adjusted to the through-hole aperture of valve and flows through the water-carrying capacity of the electronic remote transmission water meter 100 to change.
Water is flowed in the duct, and valve is provided with pipeline.Wherein, valve is the control unit in fluid delivery system,
With cut-off, regulation, water conservancy diversion, prevent the functions such as adverse current, voltage stabilizing.Valve is further divided into cast iron valve, cast-steel valve according to material
Door, stainless valve, chrome-molybdenum steel valve, Chrominm-molybdenum-vanadium steel valve, dual phase steel valve, Plastic valve etc..The valve control operating unit
The through-hole aperture of 130 pairs of valves is adjusted and (such as, tunes up or turn down), so as to control the flow of water.Operated by valve control
Unit 130, can be by water-carrying capacity control in the range of nominal flow rate.Wherein, the nominal flow rate refers to the electronic long-distance transmission water
Flow value during 100 optimum Working of table.
Fig. 3 is refer to, the electronic remote transmission water meter 100 can also include：Radio frequency transmission unit 150.
The radio frequency transmission unit 150 is connected with the control process unit 110, for setting up the electronic remote transmission water meter
Data communication between 100 and far-end server.
The electronic remote transmission water meter 100 can upload data by the radio frequency transmission unit 150 to far-end server (to be compared
Such as, the record of water-carrying capacity).The far-end server can be by the radio frequency transmission unit 150 to the electronic remote transmission water meter
100 send data, instruction (such as, regulating water flow, pass valve control etc.).
Fig. 4 is refer to, the electronic remote transmission water meter 100 can also include：Clock unit 160, data storage cell 170,
And display unit 180.
The clock unit 160 is connected with described control unit, and the electronic remote transmission water meter 100 is entered for producing clock
Row time management.
The clock unit 160 is additionally operable to the standard time sent according to the far-end server, to the electronic long-distance transmission
Time in water meter 100 is calibrated.
The clock unit 160 produces clock, and water-carrying capacity is calculated.But the clock of itself of clock unit 160
May because of some factors (such as, hardware aging) influence, so as to cause the time to have deviation so that water-carrying capacity is calculated
Existing mistake.
The far-end server can be described by network to the electronic remote transmission water meter 100 transmission time calibration instruction
Include the standard time in time calibration instruction.The electronic remote transmission water meter 100 is received after time calibration instruction, by the standard time
It is compared with the time of itself clock of clock unit 160.If standard time and itself clock of clock unit 160
Time consistency, then do not make an amendment.If standard time and the Time Inconsistency of itself clock of clock unit 160, according to mark
The time of itself clock of clock unit 160 is modified between punctual.Calibration timing is carried out, so that it is guaranteed that water-carrying capacity is calculated
Accuracy.Both time of occurrence deviations are avoided, cause disunity of valuating and readjust prices.
The water-carrying capacity moment is monitored by flow monitoring and computing unit 120, the clock unit 160, tied simultaneously
The control valve hole size of valve control operating unit 130 is closed, accurate and Intelligent adjustment water-carrying capacity, it is to avoid water-carrying capacity overload
Or it is very few, it is ensured that the stability of the water-carrying capacity of user.
The data storage cell 170 is connected with the control process unit 110, and the data storage cell 170 is stored
Have a historical record for the water-carrying capacity for flowing through the electronic remote transmission water meter 100, and national standard water-carrying capacity.
Be stored with the water-carrying capacity historical record of the electronic remote transmission water meter 100 in the data storage cell 170, and country
The water-carrying capacity of standard.Wherein, the water-carrying capacity history information can receive the information that far-end server is sent, can also
It is the information that the flow monitoring and computing unit 120 are sent.The data storage cell 170 may insure effective guarantor of data
Deposit and the electronic remote transmission water meter 100 data can be resumed and use after a power failure.
In embodiment of the present utility model, the data storage cell 170 can be memory.The memory can
To be, but it is not limited to, random access memory (Random Access Memory, RAM), read-only storage (Read Only
Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM) is erasable read-only to deposit
Reservoir (Erasable Programmable Read-Only Memory, EPROM), electricallyerasable ROM (EEROM)
(Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Historical record of the electronic remote transmission water meter 100 according to the water-carrying capacity stored in the data storage cell 170, state
The water ga(u)ge of family's standard calculates reasonably conventional flow, or receives the water flow data of the far-end server transmission to institute
Valve control operating unit 130 is stated to be controlled.The valve control operating unit 130 is completed after the regulation to valve, the flow monitoring
And computing unit 120 calculates current water-carrying capacity, and current flow information is sent to the control process unit 110,
Handled for the control process unit 110.
The display unit 180 is connected with the control process unit 110, for showing the electronic remote transmission water meter 100
Information.
The display unit 180 shows important information (such as, the real-time water consumption, remaining of the electronic remote transmission water meter 100
The information such as volume, surplus, unit price), it is easy to user to grasp the information of the electronic remote transmission water meter 100.Implement of the present utility model
In mode, the display unit 180 includes instrument board and display screen.The display screen can directly display instrument board middle finger and be directed to
The instruction numerical value answered.Above-mentioned setting causes the characteristics of reading on display screen has good visual effect, clear reading.It is simultaneously above-mentioned
Setting also has when display screen can not show numerical value, and corresponding information can also be obtained by pointer.
The electronic remote transmission water meter 100 can also include a control button, and the control button is used to select display described
Details in the classification information of electronic remote transmission water meter 100, the details include, but not limited to instantaneous water-carrying capacity, every
Day water-carrying capacity etc..
In addition, the electronic remote transmission water meter 100 can also include：Power subsystem 190, the power subsystem 190 is for being
The electronic remote transmission water meter 100 provides electric energy, so that the normal work of the electronic remote transmission water meter 100.
In embodiment of the present utility model, the power subsystem 190 can be lithium battery.The lithium battery is in electricity
When relatively low, lithium battery can be removed from the electronic remote transmission water meter 100 and be charged again, directly lithium battery can also be entered
Row charging.
The utility model preferred embodiment also provides a kind of water meter system, and the water meter system includes above-mentioned electronic long-distance transmission water
Table 100.The water meter system can be with Intelligent adjustment water-carrying capacity, it is ensured that stable with water.
In summary, the utility model provides the flow in electronic remote transmission water meter and water meter system, electronic remote transmission water meter
Monitoring and computing unit, valve control operating unit are connected with control process unit respectively, flow monitoring and computing unit, valve control operation
Unit is connected with water meter measurement base table respectively.Flow monitoring and computing unit are by water meter measurement base table to flowing through electronic long-distance transmission water
The water-carrying capacity of table is monitored and calculated.The water-carrying capacity that control process unit is calculated according to flow monitoring and computing unit is to valve control
Operating unit is controlled.Valve control operating unit is according to the control of control process unit, to the valve in the water meter measurement base table
The through-hole aperture of door outlet pass is adjusted, so that Intelligent adjustment flows through the water-carrying capacity of electronic remote transmission water meter, it is ensured that stable with water.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of electronic remote transmission water meter, it is characterised in that the electronic remote transmission water meter includes：Flow monitoring and computing unit, valve
Control operating unit, water meter measurement base table and control unit；
The flow monitoring and computing unit, the valve control operating unit are connected with the control process unit respectively；
The flow monitoring and computing unit, the valve control operating unit are connected with the water meter measurement base table respectively；
The flow monitoring and computing unit, which are monitored and calculated by the water meter measurement base table, flows through the electronic remote transmission water meter
Water-carrying capacity；
The water-carrying capacity that the control process unit is calculated according to the flow monitoring and computing unit is to the valve control operating unit
It is controlled；
The valve control operating unit is according to the control of the control process unit, to the logical of the valve in the water meter measurement base table
The water-carrying capacity that the electronic remote transmission water meter is flowed through with change is adjusted in hole aperture.
2. electronic remote transmission water meter according to claim 1, it is characterised in that：
The water meter measurement base table is rotated by the character wheel of counter and calculates the water-carrying capacity for flowing through the electronic remote transmission water meter, is produced
Mechanical metering signal, the flow monitoring and computing unit receive the mechanical metering signal.
3. electronic remote transmission water meter according to claim 2, it is characterised in that：
The mechanical metering signal that the water meter measurement base table is sent is converted to electric signal by the flow monitoring and computing unit, with
Handled for the control process unit.
4. electronic remote transmission water meter according to claim 1, it is characterised in that the electronic remote transmission water meter also includes：Radio frequency
Transmission unit；
The radio frequency transmission unit is connected with the control process unit, for setting up the electronic remote transmission water meter and remote service
Data communication between device.
5. electronic remote transmission water meter according to claim 4, it is characterised in that the electronic remote transmission water meter also includes：Clock
Unit；
The clock unit is connected with the control process unit, and the time is carried out to the electronic remote transmission water meter for producing clock
Management；
The clock unit is additionally operable to the standard time sent according to the far-end server, in the electronic remote transmission water meter
Time is calibrated.
6. electronic remote transmission water meter according to claim 1, it is characterised in that the electronic remote transmission water meter also includes：Data
Memory cell；
The data storage cell is connected with the control process unit；
The data storage cell is stored with the historical record of the water-carrying capacity for flowing through the electronic remote transmission water meter, and national standard
Water-carrying capacity；
Historical record and national standard of the control process unit based on the water-carrying capacity for flowing through the electronic remote transmission water meter
Water-carrying capacity calculate conventional water-carrying capacity, and with reference to currently flowing through the water-carrying capacity of the electronic remote transmission water meter to the water meter measurement base
The through-hole aperture of valve in table is adjusted.
7. electronic remote transmission water meter according to claim 1, it is characterised in that the electronic remote transmission water meter also includes：Display
Unit；
The display unit is connected with the control process unit, the information for showing the electronic remote transmission water meter.
8. electronic remote transmission water meter according to claim 1, it is characterised in that the electronic remote transmission water meter also includes：Control
Button；
The control button is used to select the details in the display electronic remote transmission water meter classification information.
9. electronic remote transmission water meter according to claim 1, it is characterised in that the electronic remote transmission water meter also includes：Power supply
Unit；
The power subsystem is used to provide electric energy for the electronic remote transmission water meter, so that the electronic remote transmission water meter normal work.
10. a kind of water meter system, it is characterised in that the water meter system includes the electronics described in claim 1-9 any one
Remote transmitting water meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370419.7U CN206440320U (en) | 2016-12-14 | 2016-12-14 | Electronic remote transmission water meter and water meter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370419.7U CN206440320U (en) | 2016-12-14 | 2016-12-14 | Electronic remote transmission water meter and water meter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206440320U true CN206440320U (en) | 2017-08-25 |
Family
ID=59646768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621370419.7U Active CN206440320U (en) | 2016-12-14 | 2016-12-14 | Electronic remote transmission water meter and water meter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206440320U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404093A (en) * | 2016-12-14 | 2017-02-15 | 成都秦川科技发展有限公司 | Electronic remote water meter and water meter system |
| CN112747806A (en) * | 2020-12-22 | 2021-05-04 | 河北道成电子科技有限公司 | Water meter capable of remotely calibrating flow based on Internet of things |
| CN117610793A (en) * | 2024-01-22 | 2024-02-27 | 成都秦川物联网科技股份有限公司 | Intelligent water meter remote maintenance method and device and Internet of things system |
-
2016
- 2016-12-14 CN CN201621370419.7U patent/CN206440320U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404093A (en) * | 2016-12-14 | 2017-02-15 | 成都秦川科技发展有限公司 | Electronic remote water meter and water meter system |
| CN112747806A (en) * | 2020-12-22 | 2021-05-04 | 河北道成电子科技有限公司 | Water meter capable of remotely calibrating flow based on Internet of things |
| CN117610793A (en) * | 2024-01-22 | 2024-02-27 | 成都秦川物联网科技股份有限公司 | Intelligent water meter remote maintenance method and device and Internet of things system |
| CN117610793B (en) * | 2024-01-22 | 2024-04-12 | 成都秦川物联网科技股份有限公司 | Intelligent water meter remote maintenance method and device and Internet of things system |
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