CN105243751B - Remote-control intelligent water meter ladder pricing system - Google Patents
Remote-control intelligent water meter ladder pricing system Download PDFInfo
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- CN105243751B CN105243751B CN201510725339.2A CN201510725339A CN105243751B CN 105243751 B CN105243751 B CN 105243751B CN 201510725339 A CN201510725339 A CN 201510725339A CN 105243751 B CN105243751 B CN 105243751B
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Abstract
The invention discloses a kind of remote-control intelligent water meter ladder pricing system, including at least one remote-control intelligent water meter and tele-control system；Remote-control intelligent water meter includes ladder gas price main control module, wireless communication module, clock chip and sensing device, ladder gas price main control module is connected with wireless communication module, clock chip, sensing device respectively, ladder gas price main control module includes processor, memory and counting circuit, and processor is connected with memory, counting circuit respectively；Remote-control intelligent water meter carries out time synchronized with remote-control intelligent water meter simultaneously in the process to be communicated with remote-control intelligent water meter, and then it is consistent the time of remote-control intelligent water meter and remote-control intelligent water meter, both time of occurrence deviations are avoided, cause disunity of valuating and readjust prices；Also can be judged whether that current period should be terminated according to the period end time in price plan, in addition to time synchronized, whole process is completed at table end.
Description
Technical field
The present invention relates to a kind of water meter, and in particular, the invention mainly relates to a kind of valuation of remote-control intelligent water meter ladder
System.
Background technology
With the development of society, the use demand of running water increases year by year, it is to respond National Development and Reform Committee to energy prices side
The unified plan of case, part of running water company will carry out terminal water meter the operation way of progressive price charging, but current main flow
Intellectual water meter do not possess the function of ladder valuation, part similar products on the market are deposited due to the time at table end with control terminal
In difference, the unified adjustment of price ladder and price plan adjustment can not be carried out during valuation, so as to cause running water public
The problem of charging is inconsistent be present during department's operation, thus be necessary to be ground for the function of existing main flow intellectual water meter
Study carefully and improve.
The content of the invention
An object of the present invention is to be directed to above-mentioned deficiency, there is provided a kind of remote-control intelligent water meter ladder pricing system, with
It is expected to solve the function that remote-control intelligent water meter in the prior art does not possess ladder valuation, the time at similar products table end and control terminal
Have differences, cause to valuate and the technical problem such as disunity of readjusting prices.
To solve above-mentioned technical problem, the present invention uses following technical scheme：
A kind of remote-control intelligent water meter ladder pricing system provided of the present invention, described system include at least one remote
Control intelligent water meter and tele-control system, the tele-control system are used to pass through wireless signal at least one remote-control intelligent water
Table export price plan command；Described remote-control intelligent water meter includes ladder valuation main control module, wireless communication module, clock
Chip and water flow measuring device, ladder valuation main control module respectively with wireless communication module, clock chip, flow measurement
Device is connected, and the ladder valuation main control module includes processor and memory, and the processor is connected with memory；
The price plan that the wireless communication module tele-control system is used to directly receive tele-control system is instructed and transmitted to place
Manage device；The water flow measuring device transmits current count results to processor；By cycle of the processor in price plan
Duration, accumulative water consumption in the record period duration are simultaneously stored into memory；The processor is used for price
Price plan in plan command is stored into memory, and can be by processor by the clock information and remote control of clock chip
The time of system synchronizes, and is consistent the time of clock chip and the time of tele-control system；According to price plan
In initial prices ladder to count results carry out calculation of price；And processor is also read in memory in cycle duration
Accumulative water consumption, compared with the higher limit of initial prices ladder, judges the accumulative water consumption in the current period duration
Whether reach the upper limit of initial prices ladder, as judged result be it is yes, then according to next price ladder in price plan to meter
Number result carries out calculation of price, and on the contrary then continuation carries out calculation of price according to present price ladder to count results；The processing
The time that device is additionally operable in clock chip judges whether current time is identical with the period end time in price plan, such as
Judged result is yes, then it is assumed that current period terminates, and the accumulative water consumption in memory in cycle duration is reset, and multiple
Position carries out calculation of price to the initial prices ladder of price plan to count results；It is on the contrary then continue by present price ladder to based on
Number result carries out calculation of price.
Preferably, further technical scheme is：Described wireless communication module radiofrequency signal, Wifi signals, GPRS
Signal, infrared signal, Bluetooth signal, any one access tele-control system among Zigbee signals.
Further technical scheme is：The price plan includes present price scheme and new price plan, described to work as
Preceding price plan stores to memory respectively with new price plan by processor, for reading new price plan by processor
The time is performed, compared with the current time in clock chip, judges whether current time meets the execution of new price plan
Time, if judged result is yes, then present price scheme is replaced with into new price plan and performed, it is on the contrary then continue executing with current
Price plan.
Further technical scheme is：The amount of supplementing with money data are also stored with the memory, for by processor according to
Present price ladder carries out calculation of price to count results, after obtaining result of calculation, by the value of result of calculation from memory
Deducted in the amount of supplementing with money data.
Further technical scheme is：Processor in the ladder valuation main control module also accesses display, uses
In recording the accumulative water consumption in all accumulative water consumptions and cycle duration simultaneously by processor and store to memory, and
All accumulative water consumptions and the accumulative water consumption in cycle duration are read from memory by processor, are shown by display
Show.
Further technical scheme is：The processor judge current period whether terminate as：First according to clock core
Time in piece judge when the day before yesterday whether be it is identical with the cycle starting date in present price scheme, as judged result be it is no, then
Continue to carry out count results calculation of price by present price ladder, it is on the contrary then from continuing to determine whether to meet the cycle by following formula
The condition of the beginning moon：
Mod (m+12-M, T)=0
In above formula, mod is MOD function, and M is to originate the moon in any cycle of present price scheme, m be clock chip when
Between in current month, T be present price scheme in cycle duration, and T be 12 approximate number, when above formula is set up, then
Think end cycle, it is on the contrary then continue to carry out calculation of price to count results by present price ladder.
Further technical scheme is：Also include clock information in the price plan instruction, for being incited somebody to action by processor
Clock information is synchronized to clock chip.
Further technical scheme is：The processor by the clock information of clock chip and tele-control system when
Between the mode that synchronizes be：From tele-control system periodically directly to the wireless communication module tranmitting data register of remote-control intelligent water meter
Synchronic command, wireless communication module transmit clock synchronic command to processor, by processor by clock synchronic command when
Clock synchronizing information is to clock chip.
Compared with prior art, one of beneficial effects of the present invention are：Remote-control intelligent water meter enters with tele-control system
Row communication process simultaneously with tele-control system carry out time synchronized, and then make remote-control intelligent water meter all the time with remote control system
The time of system is consistent, and avoids both time of occurrence deviations, causes disunity of valuating and readjust prices；And set in price plan
There are multiple price ladders, can sentence in real time by remote-control intelligent water meter processor according to the accumulative water consumption in cycle duration
Disconnected whether to start next price ladder progress charging, can also be judged whether according to the period end time in price plan should
Terminate current period, in addition to time synchronized, whole process is completed at table end；A kind of remote-control intelligent provided by the present invention simultaneously
Water meter ladder pricing system is simple in construction, while ladder valuation is realized, also ensure that in system remote-control intelligent water meter with it is remote
The uniformity of time between process control system, and can be improved based on existing intellectual water meter, application is wide.
Brief description of the drawings
Fig. 1 is the system structure diagram for illustrating one embodiment of the invention；
Fig. 2 is the remote-control intelligent water meter structural schematic block diagram for illustrating one embodiment of the invention.
Embodiment
The present invention is further elaborated below in conjunction with the accompanying drawings.
With reference to shown in figure 1, one embodiment of the present of invention is a kind of remote-control intelligent water meter ladder pricing system, and described is
System includes at least one remote-control intelligent water meter and tele-control system, and the tele-control system is used for by wireless signal to extremely
A few remote-control intelligent water meter export price plan command；
With reference to shown in Fig. 2, above-mentioned remote-control intelligent water meter include ladder valuation main control module, wireless communication module, when
Clock chip and water flow measuring device, wherein ladder valuation main control module are surveyed with wireless communication module, clock chip, current respectively
Amount device is connected, and the ladder valuation main control module includes processor and memory, and the processor is connected with memory
Connect；
Moreover, foregoing wireless communication module is instructed and passed for directly receiving the price plan of tele-control system
Transport to processor；In practical application, aforementioned wireless communication module can be believed by radiofrequency signal, internet, infrared signal, bluetooth
Number, the mode such as Zigbee signals accesses tele-control system, and then receives the price plan instruction of tele-control system and necessary
Other instructions.
Above-mentioned water flow measuring device is used to transmit current count results to processor；By processor according in price plan
Cycle duration, accumulative water consumption in the record period duration simultaneously stored into memory；Foregoing flow measurement
Device can be arranged on the inside of water pipe, and the flow velocity that water in-pipe flow is gathered by the collection terminal of water flow measuring device carries out electrometer
Number；
Above-mentioned processor is the core component in ladder valuation main control module, for the price during price plan is instructed
Scheme is stored into memory, and can be synchronized the time of the clock information of clock chip and tele-control system, when making
The time of clock chip and the time of tele-control system are consistent；And processor is according to the initial prices rank in price plan
Ladder carries out calculation of price to count results；And processor also reads the accumulative water consumption in memory in cycle duration, with
The higher limit of initial prices ladder is compared, and judges whether the accumulative water consumption in the current period duration reaches initial valency
The upper limit of lattice ladder, as judged result be it is yes, then according to next price ladder in price plan to count results carry out price
Calculate, on the contrary then continuation carries out calculation of price according to present price ladder to count results；And aforementioned processor read cycle is held
The accumulative water consumption being actually typically chosen in cycle duration of accumulative water consumption in the continuous time is carried out when reaching integer；
In the present embodiment, foregoing price ladder can be regarded as the unit price of running water per ton, in a price plan comprising it is multiple not
With price ladder (1 rank, 2 ranks, 3 rank ... N ranks) and invoicing periods at the beginning of between and cycle duration, different valencys
Lattice ladder is different running water charging unit prices, and each unit price is equipped with a higher limit, for as multiple chargings unit price
Switching condition, typing reaches 50 ton hours when X yuan/ton of running water use, according to Y since the usage amount of 51 tons of running water
Yuan/ton unit price carry out calculation of price, generally, X ＜ Y, i.e., in cycle duration, the tap water volume used is more,
The unit price of running water charging is higher.
In units of the moon, 0 represents 1 year above-mentioned cycle duration, and the moon can be 1,2,3,4,6,12；The beginning in cycle
Time includes cycle the starting moon and cycle starting date, and the cycle originates the moon and started with 0, and 0 represents January, and 1 represents 2 months, by that analogy,
11 represent December；Cycle starting date starts with 0,0 table 1 day, by that analogy, the end of month, the end of month default value 31 can be set.
In addition, the time that above-mentioned processor is additionally operable in clock chip judge current time whether with price side
Period end time in case is identical, if judged result is yes, then it is assumed that current period terminates, when the cycle in memory is continued
Interior accumulative water consumption is reset, and the initial prices ladder for resetting to price plan carries out calculation of price to count results；Instead
Then continue by present price ladder to count results carry out calculation of price.When foregoing period end time refers to that the cycle starts
Between add cycle duration；Such as at the beginning of the cycle between for August in 2015 1 day, period end time is what the cycle started
After 12 months, i.e. time of end cycle should be August in 2016 1, after reaching the foregoing time, that is, resets to initial
Price ladder price unit price, the carry out charging used water, start the circulation of next cycle.
For processor to judging whether the cycle of price plan terminates, inventor considers to go out in actual use
Existing cycle duration across calendar year situation, for avoid cycle duration across the situation of calendar year cause processor without
Method identifies, ensures whether the cycle terminates the accuracy of judgement；Inventor has done further research to this, i.e., is used in invention
Solve in one embodiment for being more highly preferred to of technical problem, processor judge current period whether terminate as：
Time first in clock chip judge when the day before yesterday whether be and the cycle starting date in present price scheme
It is identical；If judged result is no, then continue to carry out count results calculation of price by present price ladder, it is on the contrary then pass through following formula
Continue to determine whether the condition for meeting the cycle starting moon：
Mod (m+12-M, T)=0
In above formula, mod is MOD function, and M is to originate the moon in any cycle of present price scheme, m be clock chip when
Between in current month, T is the cycle duration in present price scheme, and approximate number that T is 12 (i.e. T value can only be 1,
2nd, 3,4,6,12), and in units of the moon, when above formula is set up, then it is assumed that end cycle, it is on the contrary then continue by present price ladder
Calculation of price is carried out to count results.Specifically above-mentioned formula be understood as current month add 12 subtract the cycle starting month
Again divided by cycle duration month, if divide exactly (remainder 0), then illustrate that formula is set up；And above-mentioned formula also may be used
Be interpreted as current month add 12 again divided by cycle duration month, when obtained remainder be equal to the cycle starting month when, then
Illustrate that formula is set up, current period should terminate；By foregoing method, even if in price plan the cycle duration across from
So year, also it can accurately calculate whether current period should terminate by above-mentioned formula.
In the present embodiment, remote-control intelligent water meter is in the process to be communicated with tele-control system while and remote control
System carries out time synchronized, and then is consistent time of the remote-control intelligent water meter all the time with tele-control system, avoids both
Time of occurrence deviation, cause disunity of valuating and readjust prices；And multiple price ladders are provided with price plan, can be by far controlling
For the processor of intellectual water meter according to the accumulative water consumption in cycle duration, whether real-time judge starts next price ladder
Charging is carried out, can also be judged whether that current period should be terminated according to the period end time in price plan, except time synchronized
Outside, whole process is completed at table end；And the present invention also ensure that remote-control intelligent in system while ladder valuation is realized
The uniformity of time between water meter and tele-control system, and can be improved based on existing intellectual water meter, have a wide range of application
It is wealthy.
According to another embodiment of the present invention, readjusted prices in real time for convenience of Running-water Company, in foregoing price plan
More set price plans can be included, i.e., at the beginning of often covering in price plan comprising price ladder and invoicing periods between with week
Duration phase；Specifically, price plan includes present price scheme and new price plan, the present price scheme with
New price plan stores to memory respectively by processor, for reading the execution time of new price plan by processor, with
Current time in clock chip is compared, and judges whether current time meets that the execution time of new price plan (such as holds
The date of row time is identical with the date of current time, or perform the time date the date of current time it
Preceding situation), if judged result is yes, then present price scheme is replaced with into new price plan and performed, it is on the contrary then continue to hold
Row present price scheme.
Further, the amount of supplementing with money data are also stored with above-mentioned memory, for by processor according to present price ladder
Calculation of price is carried out to count results, after obtaining result of calculation, by the value of result of calculation from the amount of supplementing with money the data in memory
Deduct.And current water consumption and accumulative water consumption are checked for ease of user, display can be also set up in above-mentioned intellectual water meter
Device, and the processor in above-mentioned ladder valuation main control module is accessed into display, it is all tired for being recorded by processor simultaneously
Count the accumulative water consumption in water consumption and cycle duration and store to memory, and read institute from memory by processor
There are accumulative water consumption and the accumulative water consumption in cycle duration, export to display and shown.
As this above-described embodiment is previously mentioned, how key that ladder valuation is realized is ensures terminal remote-control intelligent water meter
With the time consistency of tele-control system, even if otherwise as described above set price plan and its inside price ladder held with the cycle
The continuous time, it is also difficult to make remote-control intelligent water meter ladder valuation of the Running-water Company to terminal carry out unified effective management, therefore
The problem of for the remote-control intelligent water meter in system and tele-control system time synchronized, inventor has done many trials, and
Following several preferred embodiments are proposed, to be synchronized to the time of remote-control intelligent water meter and tele-control system：
On the one hand, the clock information of tele-control system can be directly integrated in price plan instruction, works as remote control
System is to during remote-control intelligent water meter transmission price plan instruction, you can both is carried out a time synchronized.Specially make price
Include clock information in plan command, for, in the price plan in reading instruction, while being read by processor in instruction
Clock information, and clock information is synchronized to clock chip, the current time in refresh clock chip.
On the other hand, tele-control system is not repeatedly to send price plan instruction to remote-control intelligent water meter in the short time,
It is such as synchronous with the clock of remote-control intelligent water meter without tele-control system for a long time, easily cause remote-control intelligent water meter and remote control
There is deviation in time between system, therefore when tele-control system does not send price plan instruction to remote-control intelligent water meter,
Also it is necessary regularly to enter row clock synchronization to the remote-control intelligent water meter of terminal.Specially processor believes the clock of clock chip
Ceasing the concrete mode synchronized with the time of tele-control system is：From the tele-control system periodically remote control directly to terminal
The wireless communication module tranmitting data register synchronic command of intellectual water meter, wireless communication module transmit clock synchronic command to processing
Device, the clock information in clock synchronic command is synchronized to clock chip by processor.Also, foregoing tele-control system is also
Periodically clock synchronic command can be sent to data concentrator, then by data concentrator be sent clock synchronic command remote to terminal
The wireless communication module of control intelligent water meter, and when terminal remote-control intelligent water meter quantity is more, in table end and data concentrator
Between can also set up data acquisition unit auxiliary and forward foregoing clock synchronic command.And foregoing data concentrator and data acquisition
Device is equally applicable to above-mentioned price plan instruction forwarding.
Simultaneously to ensure the accurate of clock chip, the accuracy of clock chip is lifted by the raising of calibration frequency, and
And in a manner mentioned above, clock information can be made up of year, month, day, according to the actual requirements, the clock information can be also accurate to
When, minute, second, millisecond.
Than that described above, it is also necessary to which explanation is " one embodiment ", " another implementation spoken of in this manual
Example ", " embodiment " etc., refer to that the specific features, structure or the feature that combine embodiment description are included in the application summary
Property description at least one embodiment in.It is not necessarily to refer to same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that when describing a specific features, structure or feature with reference to any embodiment, what is advocated is knot
Other embodiment is closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.More specifically, can in the range of disclosure, drawings and claims
A variety of variations and modifications are carried out with the building block to theme combination layout and/or layout.Except to building block and/or layout
Outside the variations and modifications of progress, to those skilled in the art, other purposes also will be apparent.
Claims (6)
1. a kind of remote-control intelligent water meter ladder pricing system, it is characterised in that described system includes at least one remote-control intelligent water
Table and tele-control system, the tele-control system are used to export valency at least one remote-control intelligent water meter by wireless signal
Lattice plan command；
Described remote-control intelligent water meter includes ladder valuation main control module, wireless communication module, clock chip and flow measurement
Device, the ladder valuation main control module are connected with wireless communication module, clock chip, water flow measuring device respectively, institute
Stating ladder valuation main control module includes processor and memory, and the processor is connected with memory；
The price plan that the wireless communication module is used to directly receive tele-control system is instructed and transmitted to processor；
The water flow measuring device transmits current count results to processor；Held by cycle of the processor in price plan
Continue the time, the accumulative water consumption in the record period duration is simultaneously stored into memory；
Also include clock information in the price plan instruction, for clock information to be synchronized into clock chip by processor；
The price plan that the processor is used for during price plan is instructed is stored into memory, and can be by processor by clock
The clock information of chip and the time of tele-control system synchronize, make clock chip time and tele-control system when
Between be consistent；Calculation of price is carried out to count results according to the initial prices ladder in price plan；And processor is also read
Accumulative water consumption in memory in cycle duration, compared with the higher limit of initial prices ladder, judge current week
Whether the accumulative water consumption in duration phase reaches the upper limit of initial prices ladder, if judged result is yes, then according to price
Next price ladder in scheme carries out calculation of price to count results, and on the contrary then continuation is tied according to present price ladder to counting
Fruit carries out calculation of price；
The time that the processor is additionally operable in clock chip judges whether current time is tied with the cycle in price plan
The beam time is identical, if judged result is yes, then it is assumed that current period terminates, by the accumulative use in memory in cycle duration
Water is reset, and the initial prices ladder for resetting to price plan carries out calculation of price to count results；It is on the contrary then continue by work as
Preceding price ladder carries out calculation of price to count results；
The processor judge current period whether terminate as：Time first in clock chip judge when the day before yesterday whether be
It is identical with the cycle starting date in present price scheme, if judged result is no, then continue to tie to counting by present price ladder
On the contrary fruit carries out calculation of price, condition that is then continuing to determine whether to meet the cycle starting moon by following formula：
Mod (m+12-M, T)=0
In above formula, mod is MOD function, and M is to originate the moon in any cycle of present price scheme, and m is in the time of clock chip
Current month, T be present price scheme in cycle duration, and T be 12 approximate number, when above formula is set up, then it is assumed that
End cycle, it is on the contrary then continue by present price ladder to count results carry out calculation of price.
2. remote-control intelligent water meter ladder pricing system according to claim 1, it is characterised in that：Described radio communication mold
Block is connect by any one among radiofrequency signal, Wifi signals, GPRS signals, infrared signal, Bluetooth signal, Zigbee signals
Enter tele-control system.
3. remote-control intelligent water meter ladder pricing system according to claim 1, it is characterised in that：The price plan includes
Present price scheme and new price plan, the present price scheme store to storage respectively with new price plan by processor
Device, for reading the execution time of new price plan by processor, compared with the current time in clock chip, judge to work as
Whether the preceding time meets the execution time of new price plan, if judged result is yes, then present price scheme is replaced with into new valency
Lattice scheme simultaneously performs, on the contrary then continue executing with present price scheme.
4. remote-control intelligent water meter ladder pricing system according to claim 1, it is characterised in that：Also deposited in the memory
The amount of supplementing with money data are contained, for carrying out calculation of price to count results according to present price ladder by processor, obtain calculating knot
After fruit, the value of result of calculation is deducted from the amount of supplementing with money the data in memory.
5. the remote-control intelligent water meter ladder pricing system according to claim 1 or 4, it is characterised in that：The ladder valuation
Processor in main control module also accesses display, continues for recording all accumulative water consumptions simultaneously by processor with the cycle
Accumulative water consumption in time is simultaneously stored to memory, and reads all accumulative water consumptions and cycle from memory by processor
Accumulative water consumption in duration, is shown by display.
6. remote-control intelligent water meter ladder pricing system according to claim 1, it is characterised in that：The processor is by clock
The mode that the clock information of chip and the time of tele-control system synchronize is：From tele-control system periodically directly to remote
The wireless communication module tranmitting data register synchronic command of control intelligent gas meter, wireless communication module transmit clock synchronic command to place
Device is managed, the clock information in clock synchronic command is synchronized to clock chip by processor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510725339.2A CN105243751B (en) | 2015-10-30 | 2015-10-30 | Remote-control intelligent water meter ladder pricing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725339.2A CN105243751B (en) | 2015-10-30 | 2015-10-30 | Remote-control intelligent water meter ladder pricing system |
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| CN105243751A CN105243751A (en) | 2016-01-13 |
| CN105243751B true CN105243751B (en) | 2017-11-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2837796Y (en) * | 2005-10-11 | 2006-11-15 | 湖南威铭科技有限公司 | Step-wise charging and prepayment card type intelligent water meter |
| CN201251814Y (en) * | 2008-09-12 | 2009-06-03 | 北京博纳电气有限公司 | Staircase prepaid electric energy meter |
| CN103794004A (en) * | 2014-03-03 | 2014-05-14 | 徐州君兴电子科技有限公司 | Water meter, with M_bus data remote transmission function, used for tiered pricing |
| CN203931006U (en) * | 2014-06-10 | 2014-11-05 | 上海至信实业股份有限公司 | A kind of non-contact IC card water meter |
| CN204102247U (en) * | 2014-10-16 | 2015-01-14 | 常鑫 | A kind of intellectual water meter control device based on 3G wireless communication technology |
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- 2015-10-30 CN CN201510725339.2A patent/CN105243751B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837796Y (en) * | 2005-10-11 | 2006-11-15 | 湖南威铭科技有限公司 | Step-wise charging and prepayment card type intelligent water meter |
| CN201251814Y (en) * | 2008-09-12 | 2009-06-03 | 北京博纳电气有限公司 | Staircase prepaid electric energy meter |
| CN103794004A (en) * | 2014-03-03 | 2014-05-14 | 徐州君兴电子科技有限公司 | Water meter, with M_bus data remote transmission function, used for tiered pricing |
| CN203931006U (en) * | 2014-06-10 | 2014-11-05 | 上海至信实业股份有限公司 | A kind of non-contact IC card water meter |
| CN204102247U (en) * | 2014-10-16 | 2015-01-14 | 常鑫 | A kind of intellectual water meter control device based on 3G wireless communication technology |
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| Publication number | Publication date |
|---|---|
| CN105243751A (en) | 2016-01-13 |
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