CN205156932U - Thing networking intelligent gas meter ladder pricing system - Google Patents
Thing networking intelligent gas meter ladder pricing system Download PDFInfo
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- CN205156932U CN205156932U CN201520851171.5U CN201520851171U CN205156932U CN 205156932 U CN205156932 U CN 205156932U CN 201520851171 U CN201520851171 U CN 201520851171U CN 205156932 U CN205156932 U CN 205156932U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
Abstract
The utility model discloses a thing networking intelligent gas meter ladder pricing system, belong to a gas table, the system includes thing networking intelligent gas meter and remote control system, and thing networking intelligent gas meter includes ladder gas valence the main control module, wireless communication module, clock chip and sensing device, ladder gas valence the main control module respectively with wireless communication module, clock chip, sensing device is connected, ladder gas valence the main control module includes the treater, memory and counting circuit, the treater respectively with the memory, the counting circuit is connected, thing networking intelligent gas meter and the control end carry out the communication process simultaneously and synchronous between the control end progressive tense, make thing networking intelligent gas meter keep the unanimity with time of remote control system all the time, avoid both the time warping to appear, lead to pricing and price modification unified, judge whether to finish the current cycle according to the concluding time in cycle in the price scheme, except that the time lock, whole process is all accomplished at the table end.
Description
Technical field
The utility model relates to a kind of gas meter, flow meter, and in particular, the utility model relates generally to a kind of Intelligent gas meter based on internet of things ladder pricing system.
Background technology
Along with the development of society, the user demand of combustion gas increases year by year, for response National Development and Reform Committee is to the unified plan of energy prices scheme, Some gases company will carry out the operation way of progressive price charging to terminal gas meter, flow meter, but the intelligent gas meter of main flow does not all possess the function of ladder valuation at present, part similar products on the market due to table end time and control end there are differences, unified price ladder adjustment and price plan adjustment cannot be carried out in valuation process, thus cause in gas company's operation process and there is the inconsistent problem of charging, thus be necessary to carry out studying and improving for the function of existing main flow intelligent gas meter.
Utility model content
One of the purpose of this utility model is for above-mentioned deficiency, a kind of Intelligent gas meter based on internet of things ladder pricing system is provided, the function of ladder valuation is not possessed to expect to solve Internet of Things gas meter, flow meter in prior art, time and the control end of similar products table end there are differences, and cause the technical matters such as valuation and price modification disunity.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
Thered is provided a kind of Intelligent gas meter based on internet of things ladder pricing system of the present utility model, described system comprises at least one Intelligent gas meter based on internet of things and tele-control system, and described tele-control system is used for by Internet of Things at least one Intelligent gas meter based on internet of things export price plan command; Described Intelligent gas meter based on internet of things comprises ladder gas price main control module, wireless communication module, clock chip and sensing device, described sensing device access measuring apparatus, described ladder gas price main control module is connected with wireless communication module, clock chip, sensing device respectively, described ladder gas price main control module comprises processor, storer and counting circuit, and described processor is connected with storer, counting circuit respectively; Described for receiving the price plan instruction of tele-control system by Internet of Things and transferring to processor; Described counting circuit also accesses sensing device, for gathering the numerical value in measuring apparatus by sensing device and transferring to counting circuit, then by counting circuit, count results is transferred to processor; By processor according to the cycle duration in price plan, the accumulative gas consumption in the record period duration is also stored in storer; Described processor is used for the price plan in price plan instruction to be stored in storer, and the clock information of clock chip can be carried out synchronous with the time of tele-control system by processor, the time of clock chip and the time of tele-control system are consistent; According to the initial prices ladder in price plan, calculation of price is carried out to count results; And processor also reads the accumulative gas consumption in storer in cycle duration, compare with the higher limit of initial prices ladder, judge whether the accumulative gas consumption in the current period duration reaches the upper limit of initial prices ladder, if judged result is yes, then according to next the price ladder in price plan, calculation of price is carried out to count results, otherwise then continue to carry out calculation of price according to present price ladder to count results; Described processor is also for judging that according to the time in clock chip whether current time is identical with the period end time in price plan, if judged result is yes, then think that current period terminates, accumulative gas consumption in cycle duration in storer is reset, and the initial prices ladder resetting to price plan carries out calculation of price to count results; Otherwise then continue to carry out calculation of price by present price ladder to count results.
As preferably, further technical scheme is: described wireless communication module is by any one access Internet of Things in the middle of Wifi signal, GPRS signal, Zigbee signal.
Further technical scheme is: described price plan comprises present price scheme and new price plan, described present price scheme and new price plan are stored to storer respectively by processor, for being read the execution time of new price plan by processor, compare with the current time in clock chip, judge whether current time meets the execution time of new price plan, if judged result is yes, then present price scheme replaced with new price plan and perform, otherwise then continuing to perform present price scheme.
Further technical scheme is: also store the amount of supplementing with money data in described storer, for carrying out calculation of price according to present price ladder to count results by processor, after obtaining result of calculation, the value of result of calculation is deducted from the amount of supplementing with money the data storer.
Further technical scheme is: the processor in described ladder gas price main control module also accesses display, for recording the accumulative gas consumption in all accumulative gas consumptions and cycle duration by processor and be stored to storer simultaneously, and from storer, read the accumulative gas consumption in all accumulative gas consumptions and cycle duration by processor, shown by display.
Further technical scheme is: described processor judge current period whether terminate for: first according in clock chip time judge when the day before yesterday whether be identical with the cycle starting date in present price scheme, if judged result is no, then continue to carry out calculation of price by present price ladder to count results, otherwise then continued the condition that judges whether to meet the initial moon in cycle by following formula:
mod(m+12-M,T)＝0
In above formula, mod is MOD function, M is the initial moon in arbitrary cycle of present price scheme, m is the current month in the time of clock chip, T is the cycle duration in present price scheme, and T is the approximate number of 12, when above formula is set up, then think end cycle, otherwise then continue to carry out calculation of price by present price ladder to count results.
Further technical scheme is: also comprise clock information in described price plan instruction, for clock information being synchronized to clock chip by processor.
Further technical scheme is: it is regularly to the data concentrator tranmitting data register synchronic command in Internet of Things by tele-control system that the clock information of clock chip and the time of tele-control system are carried out synchronous mode by processor, by data concentrator according to present clock information be starting point continue working time, and regularly to wireless communication module tranmitting data register synchronic command, by processor, the clock information in clock synchronous instruction is synchronized to clock chip.
Compared with prior art, one of the beneficial effects of the utility model are: Intelligent gas meter based on internet of things is carrying out time synchronized with tele-control system with the process that tele-control system carries out communicating simultaneously, and then Intelligent gas meter based on internet of things is consistent with the time of tele-control system all the time, avoid both time of occurrence deviations, cause valuation and price modification disunity; And be provided with multiple price ladder in price plan, by the processor of Intelligent gas meter based on internet of things according to the accumulative gas consumption in cycle duration, whether real-time judge starts next price ladder and carries out charging, also can judge whether according to the period end time in price plan to terminate current period, except time synchronized, whole process all completes at table end; A kind of Intelligent gas meter based on internet of things ladder pricing system structure provided by the utility model is simple simultaneously, while realizing ladder valuation, also ensure that the consistance of time between Intelligent gas meter based on internet of things and tele-control system in system, and can improve based on existing intelligent gas meter, range of application is wide.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram for illustration of the utility model embodiment;
Fig. 2 is the Intelligent gas meter based on internet of things structural schematic block diagram for illustration of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Shown in figure 1, an embodiment of the present utility model is a kind of Intelligent gas meter based on internet of things ladder pricing system, described system comprises at least one Intelligent gas meter based on internet of things and tele-control system, and described tele-control system is used for by Internet of Things at least one Intelligent gas meter based on internet of things export price plan command;
Shown in composition graphs 2, aforementioned Intelligent gas meter based on internet of things comprises ladder gas price main control module, wireless communication module, clock chip and sensing device, described sensing device access measuring apparatus, wherein ladder gas price main control module is connected with wireless communication module, clock chip, sensing device respectively, described ladder gas price main control module comprises processor, storer and counting circuit, and described processor is connected with storer, counting circuit respectively;
Moreover, aforesaid described wireless communication module is used for receiving the price plan instruction of tele-control system by Internet of Things and transferring to processor; In practical application, wireless communication module accesses Internet of Things by modes such as Wifi signal, GPRS signal, Zigbee signals, and then comes from the price plan instruction of tele-control system and other instruction of necessity in receiver networking.
Above-mentioned counting circuit also accesses sensing device, for gathering the numerical value in measuring apparatus by sensing device and transferring to counting circuit, then by counting circuit, count results is transferred to processor; By processor according to the cycle duration in price plan, the accumulative gas consumption in the record period duration is also stored in storer; On the machinery that aforesaid sensing device can be arranged on terminal Intelligent gas meter based on internet of things or digital electronic unit, such as be arranged on the magnetic part on base table mechanical counter character wheel, magnetic part and counting circuit are responded to and are produced pulse signal, and counting circuit according to setting, can carry out primary electron counting within a recurrence interval;
Above-mentioned processor is the core component in ladder gas price main control module, for the price plan in price plan instruction is stored in storer, and can the clock information of clock chip be carried out synchronous with the time of tele-control system, the time of clock chip and the time of tele-control system are consistent, and processor carries out calculation of price according to the initial prices ladder in price plan to count results, and processor also reads the accumulative gas consumption in storer in cycle duration, compare with the higher limit of initial prices ladder, judge whether the accumulative gas consumption in the current period duration reaches the upper limit of initial prices ladder, if judged result is yes, then according to next the price ladder in price plan, calculation of price is carried out to count results, otherwise then continue to carry out calculation of price according to present price ladder to count results, and the actual accumulative gas consumption be typically chosen in cycle duration of accumulative gas consumption in the aforementioned processor read cycle duration carries out when reaching integer, in the present embodiment, aforesaid price ladder can be regarded as the unit price of every cubic metre of combustion gas, multiple different price ladder (1 rank are comprised in a price plan, 2 rank, 3 rank ... N rank) and start time of invoicing periods and cycle duration, different price ladders and different combustion gas charging unit prices, and each unit price is equipped with a higher limit, for the switching condition as multiple charging unit price, typing is when the combustion gas use of X unit/cubic meter reaches 50 cubic metres, calculation of price is carried out according to the unit price of Y unit/cubic meter from the use amount of 51 cubic metres of combustion gas, generally, X < Y, namely in cycle duration, the gas quantity used is more, the unit price of combustion gas charging is higher.
Above-mentioned cycle duration is in units of the moon, and 0 represents 1 year, and the moon can be 1,2,3,4,6,12; The start time in cycle comprises the initial moon in cycle and cycle starting date, and the initial moon in cycle starts with 0, and 0 represents January, and 1 represents February, and by that analogy, 11 represent Dec; Cycle starting date with 0 start, 0 table 1 day, by that analogy, can arrange the end of month, the end of month default value 31.
In addition, above-mentioned processor is also for judging that according to the time in clock chip whether current time is identical with the period end time in price plan, if judged result is yes, then think that current period terminates, accumulative gas consumption in cycle duration in storer is reset, and the initial prices ladder resetting to price plan carries out calculation of price to count results; Otherwise then continue to carry out calculation of price by present price ladder to count results.Aforesaid period end time refers to that Period Start Time adds cycle duration; The start time in such as cycle is on August 1st, 2015, period end time is after 12 months that start in the cycle, namely the time of end cycle should be on August 1st, 2016, after the aforesaid time arrives, namely the price unit price of initial price ladder is reset to, what use combustion gas carries out charging, starts the circulation of next cycle.
For processor to judging whether the cycle of price plan terminates, inventor considers in actual use and may occur the situation of cycle duration across calendar year, for avoiding cycle duration to cause processor None-identified across the situation of calendar year, whether the guarantee cycle terminates the accuracy judged; Inventor has done further research to this, be namely used in the more preferred embodiment of technical solution problem in utility model, processor judge current period whether terminate for:
First judge whether when the day before yesterday be identical with the cycle starting date in present price scheme according to the time in clock chip; If judged result is no, then continue to carry out calculation of price by present price ladder to count results, otherwise then continued the condition that judges whether to meet the initial moon in cycle by following formula:
mod(m+12-M,T)＝0
In above formula, mod is MOD function, M is the initial moon in arbitrary cycle of present price scheme, m is the current month in the time of clock chip, and T is the cycle duration in present price scheme, and T is the approximate number (namely the value of T can only be 1,2,3,4,6,12) of 12, and in units of the moon, when above formula is set up, then think end cycle, otherwise then continue to carry out calculation of price by present price ladder to count results.Above-mentioned formula is interpreted as being that current month adds 12 and deducts initial month in cycle again divided by the month of cycle duration specifically, if divide exactly (remainder is 0), then illustrates that formula is set up; And above-mentioned formula also can be regarded as current month adds 12 again divided by the month of cycle duration, when the remainder obtained equals initial month in cycle, then illustrate that formula is set up, current period should terminate; By aforesaid method, even if whether the duration in cycle, across calendar year, also accurately calculates current period by above-mentioned formula and should terminate in price plan.
In the present embodiment, Intelligent gas meter based on internet of things is carrying out time synchronized with tele-control system with the process that tele-control system carries out communicating simultaneously, and then Intelligent gas meter based on internet of things is consistent with the time of tele-control system all the time, avoid both time of occurrence deviations, cause valuation and price modification disunity; And be provided with multiple price ladder in price plan, by the processor of Intelligent gas meter based on internet of things according to the accumulative gas consumption in cycle duration, whether real-time judge starts next price ladder and carries out charging, also can judge whether according to the period end time in price plan to terminate current period, except time synchronized, whole process all completes at table end; And the utility model is while realizing ladder valuation, and also ensure that the consistance of time between Intelligent gas meter based on internet of things and tele-control system, and can improve based on existing intelligent gas meter, range of application is wide.
According to another embodiment of the present utility model, readjust prices in real time for convenience of gas company, can comprise in aforesaid price plan and overlap price plan more, namely often overlap the start time and the cycle duration that all comprise price ladder and invoicing periods in price plan, specifically, price plan comprises present price scheme and new price plan, described present price scheme and new price plan are stored to storer respectively by processor, for being read the execution time of new price plan by processor, compare with the current time in clock chip, judge that execution time that whether current time meet new price plan, (date of such as execution time was identical with the date of current time, or the situation of the date of execution time before the date of current time), if judged result is yes, then present price scheme replaced with new price plan and perform, otherwise then continue to perform present price scheme.
Further, in above-mentioned storer, also storing the amount of supplementing with money data, for carrying out calculation of price according to present price ladder to count results by processor, after obtaining result of calculation, the value of result of calculation being deducted from the amount of supplementing with money the data storer.And check current gas consumption and accumulative gas consumption for ease of user, also can set up display in above-mentioned intelligent gas meter, and by the processor access display in above-mentioned ladder gas price main control module, for recording the accumulative gas consumption in all accumulative gas consumptions and cycle duration by processor and be stored to storer simultaneously, and from storer, read the accumulative gas consumption in all accumulative gas consumptions and cycle duration by processor, export display to and show.
Mention as this above-described embodiment, the key that ladder valuation realizes is the time consistency how ensureing Intelligent gas meter based on internet of things and tele-control system, even if otherwise as above-mentioned price ladder and the cycle duration arranging price plan and inside thereof, also be difficult to make the Intelligent gas meter based on internet of things ladder valuation of gas company to terminal unify effective management, therefore for the problem of the Intelligent gas meter based on internet of things in system and tele-control system time synchronized, inventor has done many trials, and propose following several optimal ways, in order to carry out synchronous to tele-control system with the time of Intelligent gas meter based on internet of things:
On the one hand, can the clock information of tele-control system be directly integrated in price plan instruction, when tele-control system is to the Intelligent gas meter based on internet of things shipment price plan command of terminal, both can be made to carry out a time synchronized.The wireless communication module being specially Intelligent gas meter based on internet of things receives the price plan instruction of tele-control system and the processor transferred in ladder gas price main control module by Internet of Things, aforesaid Internet of Things is that the data concentrator of data acquisition unit and accessing Internet forms, and need to arrange clock information in aforementioned price plan instruction, for during by the price plan of processor in reading command, clock information simultaneously in reading command, 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 Intelligent gas meter based on internet of things shipment price plan command in the short time, as do not carried out the clock synchronous of tele-control system and Intelligent gas meter based on internet of things for a long time, there is deviation in the time between Intelligent gas meter based on internet of things and tele-control system of easily causing, therefore, when tele-control system is not to Intelligent gas meter based on internet of things shipment price plan command, be also necessary that the regular Intelligent gas meter based on internet of things to terminal carries out clock synchronous.Be specially processor the clock information of clock chip and the time of tele-control system are carried out synchronous concrete mode to be: by tele-control system regularly to the data concentrator tranmitting data register synchronic command be connected with multiple Intelligent gas meter based on internet of things respectively, data concentrator is according to being starting point continuation working time lock in time, and regularly by the wireless communication module tranmitting data register synchronic command of data acquisition unit to terminal intelligent gas meter, flow meter, also regularly initiatively present clock information can be obtained by wireless communication module to long-range data concentrator by the processor in ladder gas price main control module, and clock information is synchronized to clock chip.
Simultaneously for ensureing the accurate of clock chip, promoted the accuracy of clock chip by the raising of calibration frequency, and in a manner mentioned above, clock information can be made up of year, month, day, according to the actual requirements, when also this clock information can be accurate to, minute, second, millisecond.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (8)
1. an Intelligent gas meter based on internet of things ladder pricing system, it is characterized in that described system comprises at least one Intelligent gas meter based on internet of things and tele-control system, described tele-control system is used for by Internet of Things at least one Intelligent gas meter based on internet of things export price plan command;
Described Intelligent gas meter based on internet of things comprises ladder gas price main control module, wireless communication module, clock chip and sensing device, described sensing device access measuring apparatus, described ladder gas price main control module is connected with wireless communication module, clock chip, sensing device respectively, described ladder gas price main control module comprises processor, storer and counting circuit, and described processor is connected with storer, counting circuit respectively;
Described wireless communication module is used for receiving the price plan instruction of tele-control system by Internet of Things and transferring to processor;
Described counting circuit also accesses sensing device, for gathering the numerical value in measuring apparatus by sensing device and transferring to counting circuit, then by counting circuit, count results is transferred to processor; By processor according to the cycle duration in price plan, the accumulative gas consumption in the record period duration is also stored in storer;
Described processor is used for the price plan in price plan instruction to be stored in storer, and the clock information of clock chip can be carried out synchronous with the time of tele-control system by processor, the time of clock chip and the time of tele-control system are consistent; According to the initial prices ladder in price plan, calculation of price is carried out to count results; And processor also reads the accumulative gas consumption in storer in cycle duration, compare with the higher limit of initial prices ladder, judge whether the accumulative gas consumption in the current period duration reaches the upper limit of initial prices ladder, if judged result is yes, then according to next the price ladder in price plan, calculation of price is carried out to count results, otherwise then continue to carry out calculation of price according to present price ladder to count results;
Described processor is also for judging that according to the time in clock chip whether current time is identical with the period end time in price plan, if judged result is yes, then think that current period terminates, accumulative gas consumption in cycle duration in storer is reset, and the initial prices ladder resetting to price plan carries out calculation of price to count results; Otherwise then continue to carry out calculation of price by present price ladder to count results.
2. Intelligent gas meter based on internet of things ladder pricing system according to claim 1, is characterized in that: described wireless communication module is by any one access Internet of Things in the middle of Wifi signal, GPRS signal, Zigbee signal.
3. Intelligent gas meter based on internet of things ladder pricing system according to claim 1, it is characterized in that: described price plan comprises present price scheme and new price plan, described present price scheme and new price plan are stored to storer respectively by processor, for being read the execution time of new price plan by processor, compare with the current time in clock chip, judge whether current time meets the execution time of new price plan, if judged result is yes, then present price scheme replaced with new price plan and perform, otherwise then continue to perform present price scheme.
4. Intelligent gas meter based on internet of things ladder pricing system according to claim 1, it is characterized in that: in described storer, also store the amount of supplementing with money data, for carrying out calculation of price according to present price ladder to count results by processor, after obtaining result of calculation, the value of result of calculation is deducted from the amount of supplementing with money the data storer.
5. the Intelligent gas meter based on internet of things ladder pricing system according to claim 1 or 4, it is characterized in that: the processor in described ladder gas price main control module also accesses display, for recording the accumulative gas consumption in all accumulative gas consumptions and cycle duration by processor and be stored to storer simultaneously, and from storer, read the accumulative gas consumption in all accumulative gas consumptions and cycle duration by processor, shown by display.
6. the Intelligent gas meter based on internet of things ladder pricing system according to claim 1 or 3, it is characterized in that described processor judge current period whether terminate for: first according in clock chip time judge when the day before yesterday whether be identical with the cycle starting date in present price scheme, if judged result is no, then continue to carry out calculation of price by present price ladder to count results, otherwise then continued the condition that judges whether to meet the initial moon in cycle by following formula:
mod(m+12-M,T)＝0
In above formula, mod is MOD function, M is the initial moon in arbitrary cycle of present price scheme, m is the current month in the time of clock chip, T is the cycle duration in present price scheme, and T is the approximate number of 12, when above formula is set up, then think end cycle, otherwise then continue to carry out calculation of price by present price ladder to count results.
7. Intelligent gas meter based on internet of things ladder pricing system according to claim 1, is characterized in that: also comprise clock information in described price plan instruction, for clock information being synchronized to clock chip by processor.
8. Intelligent gas meter based on internet of things ladder pricing system according to claim 1, it is characterized in that: the clock information of clock chip and the time of tele-control system are carried out synchronous mode and is by described processor: by tele-control system regularly to the data concentrator tranmitting data register synchronic command in Internet of Things, by data concentrator according to present clock information be starting point continue working time, and regularly to wireless communication module tranmitting data register synchronic command, by processor, the clock information in clock synchronous instruction is synchronized to clock chip.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606130A (en) * | 2015-10-30 | 2016-05-25 | 成都秦川科技发展有限公司 | Stepped pricing system of intelligent IoT (Internet of Things) combustion gas meters |
| CN107909725A (en) * | 2017-08-22 | 2018-04-13 | 优艾特仪表科技成都有限公司 | A kind of method that ladder valuation is realized at gauge table table end |
| US10977750B2 (en) | 2019-02-27 | 2021-04-13 | Chengdu Qinchuan loT Technology Co., Ltd. | Gas pricing method based on compound internet of things (IOT) and IOT system |
-
2015
- 2015-10-30 CN CN201520851171.5U patent/CN205156932U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606130A (en) * | 2015-10-30 | 2016-05-25 | 成都秦川科技发展有限公司 | Stepped pricing system of intelligent IoT (Internet of Things) combustion gas meters |
| CN107909725A (en) * | 2017-08-22 | 2018-04-13 | 优艾特仪表科技成都有限公司 | A kind of method that ladder valuation is realized at gauge table table end |
| US10977750B2 (en) | 2019-02-27 | 2021-04-13 | Chengdu Qinchuan loT Technology Co., Ltd. | Gas pricing method based on compound internet of things (IOT) and IOT system |
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