CN102539860A - Multiple on-line electricity measuring method, multiple on-line electricity measuring system and electric equipment unit system - Google Patents
Multiple on-line electricity measuring method, multiple on-line electricity measuring system and electric equipment unit system Download PDFInfo
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Abstract
The invention discloses a multiple on-line electricity measuring method, a multiple on-line electricity measuring system and an electric equipment unit system. The multiple on-line electricity measuring system comprises a plurality of billing units and a computer, wherein a plurality of billing units are arranged correspondingly to a plurality of units; each billing unit is connected with a storage in a detachable mode; each billing unit is used for carrying out billing on the corresponding unit according to the power consumption condition of the unit to obtain billing information and storing the billing information in the storage connected with the billing unit; and the computer is used for receiving the billing information from a plurality of billing units and generating a report according to the billing information from a plurality of billing units. In the invention, the problem of excessively depending on the billing units, which is caused by unified billing, is solved and the problem that the computer needs to be started for a long time is avoided. As long as the computer is started when electric bills need to be uniformly settled or the billing information of each unit needs to be acquired at regular intervals, the billing information of each billing unit, which is stored in the storage, can be transmitted to the computer, so that the stability and the reliability of the system are effectively improved.
Description
Technical field
The present invention relates to field of measuring techniques, and especially, relate to a kind of how online electricity metering method and system and electric equipment machine set system.
Background technology
Many on-line systems can be applied to commercial real estate projects such as office building, retail shop.Wherein, how online being meant, for example, in the air-conditioning system, a plurality of indoor sets all connect same off-premises station, and at this moment, these a plurality of indoor sets provide refrigerant by this off-premises station, thereby freeze.Therefore, in comparatively complicated scene, a unit possibly provide service for several owners; Except need measuring out (power consumption of machine mainly is the power consumption of blower fan in many online group, is a very little part), also need the power consumption of the outer machine compressor of the most of electric weight of stoichiometric consumption to every interior machine power consumption; Like this, just need a cover system to share the power consumption of outer machine to machine in each, that is to say according to reference values such as cold medium fluxes; Because machine all need just can freeze by the refrigerant that outer machine provides in each in many on-line systems, like this, when the statistics electricity charge, not only need add up the power consumption of machine in each itself; Also will be according to the refrigeration situation of machine in each; Confirm the operating position of the external machine of machine in each, thereby the power consumption of outer machine is accurately shared to machine in each, obtain the corresponding actual electricity consumption situation of machine in each.
Because outer machine just carries out work under the control of interior machine; And externally machine can't confirm accurately how many refrigerants are reality provide to machine in each; Therefore, need analyze, can confirm that machine is to the demand of refrigerant in each the refrigeration situation of machine in each.Generally; The electricity metering system that many on-line systems are used can be provided with a total Charging Detail Record unit; Be used in the data acquisition with each unit, and be responsible for giving computing machine with this data transfer then coming on the pulse signal acquisition of ammeter; These data are calculated and shared by computing machine, calculate the electric weight expense.
But, in said system, owing to need carry out the processing of data, therefore, need computing machine to remain on open state through computing machine always, in case computer shutdown just can not carry out the storage and the analysis of data in real time, thus can't computational costs information; And computing machine will be easy to break down under the situation of long-time start.
In addition, in such scheme, because all signal is all by a Charging Detail Record unit collection, therefore, in case Charging Detail Record unit damages, the metering data of all units can not be delivered to computing machine, cause the problem that can't charge.
Many on-line systems reliability to electric energy tariff in the correlation technique is low, poor stability, computing machine is relied on excessive problem, does not propose effective solution at present as yet.
Summary of the invention
Many on-line systems reliability to electric energy tariff in the correlation technique is low, poor stability, computing machine is relied on excessive problem; The present invention proposes a kind of how online electricity metering method and system and electric equipment machine set system; Can reduce the dependence of system, improve the stability and the reliability of system a certain ingredient.
Technical scheme of the present invention is achieved in that
According to an aspect of the present invention, a kind of how online electricity metering system is provided, has been used for the consumer cluster that comprises a plurality of units is carried out electricity metering.
Comprise according to of the present invention how online electricity metering system: a plurality of Charging Detail Record unit; With the corresponding one by one setting of a plurality of units; Each Charging Detail Record unit is connected with storer removably, and wherein, each Charging Detail Record unit is used for according to the electricity consumption situation of corresponding unit this unit being chargeed; Obtain charge information, and with in the storer that charge information is kept at this Charging Detail Record unit is connected; Computing machine is used to receive the charge information from a plurality of Charging Detail Record unit, and generates form according to the charge information that comes a plurality of Charging Detail Record unit.
Wherein, each Charging Detail Record unit comprises pulse collection module, unit communication module and processor, and wherein, the pulse collection module is used for the counting of the pulse ammeter of the corresponding unit of place Charging Detail Record unit is gathered; The unit communication module is used for communicating with the corresponding unit of place Charging Detail Record unit, obtains the electricity consumption situation information of each consumer in this unit; Processor is used for confirming the expense of each consumer electricity consumption of this unit according to the counting of pulse ammeter and electricity consumption situation information, and generates charge information.
And for each unit, the Charging Detail Record unit that the ammeter of this unit is corresponding with this unit connects through pulse signal-line, and the ammeter of this unit Charging Detail Record unit corresponding with this unit disposed with mode nearby.
Wherein, ammeter and the corresponding one by one setting of unit.
In addition, alternatively, each Charging Detail Record unit is through RS485 interface and compunication; And how online electricity metering system further comprises modular converter, and it is the signal of the form that can discern of computing machine that modular converter is used for the conversion of signals that meets the RS485 standard from Charging Detail Record unit, and the signal after will changing offers computing machine.
In addition, each computing unit is being inserted under the situation of storer, this computing unit can be discerned the charge information in the storer that is inserted, and in storer, proceeds to charge and deposit charge information on the basis of existing charge information.
In addition, carry out electricity charge statistics or predetermined charging information collecting cycle when reaching at needs, computing machine obtains charge information and preserves in computer-side from a plurality of Charging Detail Record unit.
Alternatively, consumer can be air conditioner, wherein, includes at least one off-premises station and at least one indoor set in each unit, and off-premises station is connected through nonpolarity two heart yearns with indoor set.
According to a further aspect in the invention, a kind of consumer machine set system is provided, comprise a plurality of units that consumer is formed and with the ammeter of the corresponding one by one setting of a plurality of units.
Consumer machine set system according to the present invention also comprises: a plurality of Charging Detail Record unit; With the corresponding one by one setting of a plurality of units; Each Charging Detail Record unit is connected with storer removably, and wherein, each Charging Detail Record unit is used for according to the electricity consumption situation of corresponding unit this unit being chargeed; Obtain charge information, and with in the storer that charge information is kept at this Charging Detail Record unit is connected; Computing machine is used to receive the charge information from a plurality of Charging Detail Record unit, and generates form according to the charge information that comes a plurality of Charging Detail Record unit.
In accordance with a further aspect of the present invention, a kind of how online electricity metering method is provided also, has been used for the consumer cluster that comprises a plurality of units is carried out electricity metering.
Comprise according to of the present invention how online electricity metering method: according to the electricity consumption situation of corresponding unit this unit is chargeed with corresponding one by one each Charging Detail Record unit that is provided with in a plurality of Charging Detail Record unit of a plurality of units; Obtain charge information, and charge information is kept in the dismountable storer that is connected with this Charging Detail Record unit; Each Charging Detail Record unit sends to computing machine with the charge information of preserving, for the charge information generation form of computing machine according to a plurality of Charging Detail Record unit.
The present invention is through carrying out distributed charging and generating charge information respectively to each unit; Can avoid the unified problem that Charging Detail Record unit is too relied on of chargeing and causing; Even certain Charging Detail Record unit breaks down; Also can be through changing Charging Detail Record unit and insert the storer that former Charging Detail Record unit uses and carry out computational costs, the problem of having avoided total system all can't charge, and; Can avoid the computing machine problem of start for a long time; As long as start shooting in the needs unified clearing electricity charge or when regularly obtaining the charge information of each unit, the charge information of preserving in can the storer with each Charging Detail Record unit transfers to computing machine and gets final product, thereby has effectively improved the stability and the reliability of system.
Description of drawings
Fig. 1 is the block diagram according to the how online electricity metering system of the embodiment of the invention;
Fig. 2 is the structured flowchart according to Charging Detail Record unit in the how online electricity metering system of the embodiment of the invention;
Fig. 3 is the synoptic diagram that is used for the air-conditioning unit according to the how online electricity metering system of the embodiment of the invention;
Fig. 4 is the synoptic diagram that the Charging Detail Record unit according to each unit of the embodiment of the invention is connected with off-premises station (also can be other consumers);
Fig. 5 is the process flow diagram according to the how online electricity metering method of the embodiment of the invention.
Embodiment
According to embodiments of the invention; A kind of how online electricity metering system is provided; Be used for the consumer cluster that comprises a plurality of units is carried out electricity metering, the consumer unit can be (each unit comprise at least one off-premises station and at least one indoor set) such as air-conditioning units.
Fig. 1 is the block diagram according to the how online electricity metering system of the embodiment of the invention.
As shown in Figure 1, comprise according to the how online electricity metering system of the embodiment of the invention:
A plurality of Charging Detail Record unit (are started from clearly purpose, are only shown 2 Charging Detail Record unit among the figure, in practical application; The quantity of Charging Detail Record unit can be more, and its connected mode is similar) 11, with the corresponding one by one setting of a plurality of units; Each Charging Detail Record unit is connected with storer removably, and wherein, each Charging Detail Record unit is used for according to the electricity consumption situation of corresponding unit this unit being chargeed; Obtain charge information, and with in the storer that charge information is kept at this Charging Detail Record unit is connected;
Computing machine 12 is used to receive the charge information from a plurality of Charging Detail Record unit, and generates form according to the charge information that comes a plurality of Charging Detail Record unit.
Fig. 2 is the block diagram according to the structure example of the Charging Detail Record unit of the embodiment of the invention.
As shown in Figure 2; Each Charging Detail Record unit according to the embodiment of the invention (for example can comprise above-mentioned storer; Can be the FLASH storer shown in Fig. 2); And can comprise pulse collection module, unit communication module and processor (can be MCU), wherein, the pulse collection module is used for the counting of the pulse ammeter of the corresponding unit of place Charging Detail Record unit is gathered; The unit communication module is used for communicating with the corresponding unit of place Charging Detail Record unit, obtains this unit electricity consumption situation information, and for example, when the air-conditioning unit was chargeed, the unit communication module can communicate with the air-conditioning unit; Processor is used for confirming the expense of each consumer electricity consumption of this unit according to the counting of pulse ammeter and electricity consumption situation information, and generates charge information.
For example; At unit is under the situation of air conditioner unit; The information that the unit communication module is obtained can comprise each interior machine sign of this unit; The on-off state of interior machine, interior machine are issued the expansion valve opening of the coil temperature of the ability need of outer machine, interior machine, interior machine, an interior machine number, the design temperature of interior machine, the actual temperature in room etc.; Confirm the electricity consumption situation of each consumer (interior machine) in each unit, and then the power consumption of ammeter statistics is shared machine in each, calculate the electricity cost of machine in each.
Wherein, for each unit, the Charging Detail Record unit that the ammeter of this unit is corresponding with this unit connects through pulse signal-line, and the ammeter of this unit Charging Detail Record unit corresponding with this unit disposed with mode nearby.
In traditional scheme, Charging Detail Record unit can be installed in indoor and the contiguous setting of computing machine, and this just needs ammeter to draw very long pulse signal-line, is connected to Charging Detail Record unit, and long pulse signal-line can increase the probability that pulse signal is disturbed.Through the deployment way that is provided with of above-mentioned Charging Detail Record unit, the distance between pulse ammeter and the Charging Detail Record unit of can furthering is avoided adopting long pulse signal-line, has solved the problem that pulse signal is disturbed easily.
And, in said system, ammeter can with the corresponding one by one setting of unit.
Alternatively, each Charging Detail Record unit is through RS485 interface and compunication, and promptly as shown in Figure 2, Charging Detail Record unit can comprise 485 communication modules, is used for communicating with host computer such as computing machine; And; Beyond Charging Detail Record unit; Many online electricity meterings system further comprises modular converter, and it is the signal of the form that can discern of computing machine that modular converter is used for the conversion of signals that meets the RS485 standard from Charging Detail Record unit, and the signal after will changing offers computing machine.In addition, as shown in Figure 2, Charging Detail Record unit can also comprise clock chip, and the internal work that is used to Charging Detail Record unit provides time reference.
Though can make the certain distance of generation between Charging Detail Record unit and the computing machine through above-mentioned deployment; But; Through the signal transmission of forms such as RS485, the probability that the signal of feasible transmission is disturbed is far below the pulse signal of transmission, thereby raising has improved the signal quality of system.
The work that above-mentioned distributed charging way can be avoided information collecting, analyzes and obtain charge information depends on an equipment, even a Charging Detail Record unit breaks down, also can not influence the charging of other units.
And each computing unit is being inserted under the situation of storer, this computing unit can be discerned the charge information in the storer that is inserted, and in storer, proceeds to charge and deposit charge information on the basis of existing charge information.
In addition, carry out electricity charge statistics or predetermined charging information collecting cycle when reaching at needs, computing machine obtains charge information and preserves in computer-side from a plurality of Charging Detail Record unit.That is to say that computing machine can regularly obtain charge information, and/or when the electricity charge of needs statistics go out form, obtain charge information; And computing machine need not carry out real-time information processing and analysis; Therefore, only need when obtaining information, start shooting gets final product, and need not long-play.
Alternatively, consumer is an air conditioner, wherein, includes at least one off-premises station and at least one indoor set in each unit, and off-premises station is connected through nonpolarity two heart yearns with indoor set.
As shown in Figure 3, suppose to be provided with a plurality of off-premises stations and a plurality of indoor set for a plurality of floors (as shown in Figure 3,6 layers to 9 layers); Each floor is as a unit, and each floor comprises indoor set 1-10, connects through nonpolarity two heart yearns (distribution) between the indoor set; Off-premises station need be connected to the Charging Detail Record unit (not shown), and Charging Detail Record unit is connected to converter, and then is connected to computing machine; Computing machine can be connected to printer, so that printing reports.
Fig. 4 is the synoptic diagram that the Charging Detail Record unit according to each unit of the embodiment of the invention is connected with off-premises station (also can be other consumers).
As shown in Figure 4, Charging Detail Record unit is connected to pulse ammeter (power consumption of a unit is to notify through the form of pulse) through pulse signal-line, and Charging Detail Record unit is connected to off-premises station through communication bus, and in addition, power lead is connected to off-premises station via ammeter.
That is to say, generally, can use a Charging Detail Record unit by each unit; Use an ammeter, each Charging Detail Record unit calculates the power consumption of this unit separately, and goes out the situation of sharing of every interior machine according to the calculation of parameter of interior machine; Deposit in the storer then; Storer is dismountable, even if Charging Detail Record unit damages, storer is inserted on the new Charging Detail Record unit still can reads the electric weight record.Each Charging Detail Record unit works independently, and does not need booting computer at ordinary times, need collect charges for electricity to be out that computer collection electric weight goes out form; Each unit uses independent pulse ammeter, and apart from weak point, pulse signal is not easy to be disturbed ammeter to Charging Detail Record unit, and each Charging Detail Record unit has independent dismountable storer, greatly reduces the possibility that electric weight is lost.The power consumption of unit can be stablized, measured accurately to this structure.In addition, each Charging Detail Record unit calculates the power consumption situation of this unit separately, does not need computer to start shooting, when needs collect charges for electricity always; Open computer electric weight is collected the computer from Charging Detail Record unit, go out electricity charge form, reduced dependence computer; Common computer 24 hours start running, can not last very long with regard to cisco unity malfunction, if metering data all is put into computer; In case damaging, computer just cause the electric weight of whole engineering to measure, and in scheme of the present invention, even if certain Charging Detail Record unit damages; Also only influence the electric quantity metering of this unit, and each Charging Detail Record unit there is dismountable storer, even if Charging Detail Record unit damages; Change to storer on the new Charging Detail Record unit, the electric weight in the storer can read out, and can not cause electric weight to be lost.
Although be that example is described with the air-conditioner system before; But it will be appreciated by those skilled in the art that the unit of forming for other consumers, can adopt system of the present invention to carry out electricity consumption equally and charge; Concrete implementation is similar, and this paper enumerates no longer one by one.
According to embodiments of the invention, a kind of how online electricity metering method also is provided, be used for the consumer cluster that comprises a plurality of units is carried out electricity metering.
As shown in Figure 5, comprise according to the how online electricity metering method of the embodiment of the invention:
Step S501; This unit is chargeed according to the electricity consumption situation of corresponding unit with corresponding one by one each Charging Detail Record unit that is provided with in a plurality of Charging Detail Record unit of a plurality of units; Obtain charge information, and charge information is kept in the dismountable storer that is connected with this Charging Detail Record unit;
Step S503, each Charging Detail Record unit sends to computing machine with the charge information of preserving, for the charge information generation form of computing machine according to a plurality of Charging Detail Record unit.
In sum; By means of technique scheme of the present invention, through each unit being carried out distributed charging and generate charge information respectively, can avoid the unified problem that Charging Detail Record unit is too relied on of chargeing and causing; Even certain Charging Detail Record unit breaks down; Also can be through changing Charging Detail Record unit and insert the storer that former Charging Detail Record unit uses and carry out computational costs, the problem of having avoided total system all can't charge, and; Can avoid the computing machine problem of start for a long time; As long as start shooting in the needs unified clearing electricity charge or when regularly obtaining the charge information of each unit, the charge information of preserving in can the storer with each Charging Detail Record unit transfers to computing machine and gets final product, thereby has effectively improved the stability and the reliability of system.In addition, can avoid adopting long ammeter signal wire, solve the problem that signal is interfered easily.In addition,, can realize the replacing of Charging Detail Record unit at an easy rate, help further to help to charge, reduce the time of chargeing and stopping, improving the accuracy of chargeing through the plug of storer.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the system of online electricity metering more than a kind is used for the consumer cluster that comprises a plurality of units is carried out electricity metering, it is characterized in that, said how online electricity metering system comprises:
A plurality of Charging Detail Record unit; With the corresponding one by one setting of said a plurality of units; Each Charging Detail Record unit is connected with storer removably, and wherein, each Charging Detail Record unit is used for according to the electricity consumption situation of corresponding unit this unit being chargeed; Obtain charge information, and with in the storer that said charge information is kept at this Charging Detail Record unit is connected;
Computing machine is used to receive the charge information from said a plurality of Charging Detail Record unit, and generates form according to the charge information that comes said a plurality of Charging Detail Record unit.
2. according to claim 1 how online electricity metering system is characterized in that each Charging Detail Record unit comprises pulse collection module, unit communication module and processor, wherein,
Said pulse collection module is used for the counting of the pulse ammeter of the corresponding unit of place Charging Detail Record unit is gathered;
Said unit communication module is used for communicating with the corresponding unit of place Charging Detail Record unit, obtains the electricity consumption situation information of each consumer in this unit;
Said processor is used for confirming the expense of each consumer electricity consumption of this unit according to the counting of said pulse ammeter and said electricity consumption situation information, and generates charge information.
3. according to claim 2 how online electricity metering system; It is characterized in that; For each unit; The Charging Detail Record unit that the ammeter of this unit is corresponding with this unit connects through pulse signal-line, and the ammeter of this unit Charging Detail Record unit corresponding with this unit disposed with mode nearby.
4. according to claim 2 how online electricity metering system is characterized in that ammeter and the corresponding one by one setting of unit.
5. according to claim 1 how online electricity metering system is characterized in that,
Each said Charging Detail Record unit is through RS485 interface and said compunication;
And; Said how online electricity metering system further comprises modular converter; It is the signal of the form that can discern of said computing machine that said modular converter is used for the conversion of signals that meets the RS485 standard from said Charging Detail Record unit, and the signal after will changing offers said computing machine.
6. according to claim 1 how online electricity metering system; It is characterized in that; Each computing unit is being inserted under the situation of storer; This computing unit can be discerned the charge information in the storer that is inserted, and in said storer, proceeds on the basis of existing charge information to charge and deposit charge information in.
7. according to claim 1 how online electricity metering system; It is characterized in that; Carry out electricity charge statistics or predetermined charging information collecting cycle when reaching at needs, said computing machine obtains charge information and preserves in said computer-side from said a plurality of Charging Detail Record unit.
8. according to each described how online electricity metering system in the claim 1 to 7; It is characterized in that said consumer is an air conditioner, wherein; Include at least one off-premises station and at least one indoor set in each unit, said off-premises station is connected through nonpolarity two heart yearns with said indoor set.
9. consumer machine set system, comprise a plurality of units that consumer is formed and with the ammeter of the corresponding one by one setting of a plurality of units, it is characterized in that said consumer machine set system also comprises:
A plurality of Charging Detail Record unit; With the corresponding one by one setting of said a plurality of units; Each Charging Detail Record unit is connected with storer removably, and wherein, each Charging Detail Record unit is used for according to the electricity consumption situation of corresponding unit this unit being chargeed; Obtain charge information, and with in the storer that said charge information is kept at this Charging Detail Record unit is connected;
Computing machine is used to receive the charge information from said a plurality of Charging Detail Record unit, and generates form according to the charge information that comes said a plurality of Charging Detail Record unit.
10. online electricity metering method more than a kind is used for the consumer cluster that comprises a plurality of units is carried out electricity metering, it is characterized in that said how online electricity metering method comprises:
This unit is chargeed according to the electricity consumption situation of corresponding unit with corresponding one by one each Charging Detail Record unit that is provided with in a plurality of Charging Detail Record unit of said a plurality of units; Obtain charge information, and said charge information is kept in the dismountable storer that is connected with this Charging Detail Record unit;
Each said Charging Detail Record unit sends to computing machine with the charge information of preserving, for the charge information generation form of said computing machine according to said a plurality of Charging Detail Record unit.
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| CN103901242A (en) * | 2014-04-22 | 2014-07-02 | 珠海格力电器股份有限公司 | Multi-online individual billing method and system |
| CN105486918A (en) * | 2016-01-18 | 2016-04-13 | 广东美的暖通设备有限公司 | Electric quantity management method and system |
| CN106226595A (en) * | 2016-07-05 | 2016-12-14 | 珠海格力电器股份有限公司 | The outer machine of a kind of multi-online air-conditioning system and air conditioning charging system |
| CN106765935A (en) * | 2016-12-15 | 2017-05-31 | 北京小米移动软件有限公司 | Energy-saving Data acquisition methods and device |
| CN107092688A (en) * | 2017-04-24 | 2017-08-25 | 珠海格力电器股份有限公司 | Bill information querying method, system and WEB server |
| CN107179754A (en) * | 2017-04-18 | 2017-09-19 | 珠海格力电器股份有限公司 | A kind of multiple on-line system and its centralized management method |
| CN107449448A (en) * | 2016-05-30 | 2017-12-08 | 珠海格力电器股份有限公司 | A kind of air conditioning charging system |
| CN109061288A (en) * | 2018-07-16 | 2018-12-21 | 珠海格力电器股份有限公司 | Household cost allocation method, apparatus, system and the billing terminal of multi-line system |
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| CN110068726A (en) * | 2019-04-22 | 2019-07-30 | 珠海格力电器股份有限公司 | Electro-metering system and metering method |
| CN111257608A (en) * | 2020-02-17 | 2020-06-09 | 浙江正泰仪器仪表有限责任公司 | Synchronous processing method of multi-core intelligent electric energy meter and multi-core intelligent electric energy meter |
| CN111683142A (en) * | 2020-06-08 | 2020-09-18 | 广东美的暖通设备有限公司 | Metering device, metering method, and computer-readable storage medium |
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| CN109061288B (en) * | 2018-07-16 | 2020-06-26 | 珠海格力电器股份有限公司 | Household charging method, device and system for multi-split system and charging terminal |
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| CN111257608A (en) * | 2020-02-17 | 2020-06-09 | 浙江正泰仪器仪表有限责任公司 | Synchronous processing method of multi-core intelligent electric energy meter and multi-core intelligent electric energy meter |
| CN111257608B (en) * | 2020-02-17 | 2021-06-22 | 浙江正泰仪器仪表有限责任公司 | Synchronous processing method of multi-core intelligent electric energy meter and multi-core intelligent electric energy meter |
| CN111683142A (en) * | 2020-06-08 | 2020-09-18 | 广东美的暖通设备有限公司 | Metering device, metering method, and computer-readable storage medium |
| CN111683142B (en) * | 2020-06-08 | 2023-02-21 | 上海美控智慧建筑有限公司 | Metering apparatus, metering method, and computer-readable storage medium |
| CN113406375A (en) * | 2021-07-08 | 2021-09-17 | 宁夏隆基宁光仪表股份有限公司 | Intelligent ammeter system sharing storage and display device and sharing method thereof |
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