CN110221122A - The intelligent electric energy meter - Google Patents
The intelligent electric energy meter Download PDFInfo
- Publication number
- CN110221122A CN110221122A CN201910646024.7A CN201910646024A CN110221122A CN 110221122 A CN110221122 A CN 110221122A CN 201910646024 A CN201910646024 A CN 201910646024A CN 110221122 A CN110221122 A CN 110221122A
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- Prior art keywords
- electric energy
- chip microcontroller
- energy meter
- intelligent electric
- power
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of the intelligent electric energy meters, measuring unit is converted the voltage in power grid is corresponding to the progress of the signal of electric current, realize that effective low level signal is converted by A/D converter in single-chip microcontroller, electric current is converted by voltage transformer and current transformer, is ultimately formed the low level signal of exchange and is transferred in single-chip microcontroller；Display portion will add up electric energy accordingly by LCD screen and Various types of data is shown accordingly, and the processing, calculating and control LCD screen that single-chip microcontroller carries out data show that final feedback arrives control centre；Serial E ZPROM storage is external on single-chip microcontroller, and the constant and time parameter of specific electricity, electric energy meter for using each period user store；Communications portion realizes that the data between electric energy meter and hand-held transcriber are transmitted using infrared communication, and power unit powers to realization in table.It is easily assembled and produces, low in cost, improves working efficiency, reduces error generation rate.
Description
Technical field
The present invention relates to electric energy, field of electrical equipment, and in particular, to a kind of the intelligent electric energy meter.
Background technique
Used electric energy management system relatively falls behind in the resident in China at present, and institute always for many years
Using first electricity consumption, carrying out meter reading, the subsequent mode paid.This management system relatively fall behind, neighbourhood committee or
It is that the ammeter of administrator's progress of property from house to house is made a copy of, very takes time and effort, working efficiency is lower, in order to mention
It rises the Electrical Safety of user, more rationally must more easily use, and the mode of old ammeter and electricity consumption is constantly transformed, promote its energy
It is enough more to adapt to current social development needs.
It is analyzed for each family and electricity consumption, the final development of smart grid is the intelligence of electricity consumption to be realized, is used
Family can carry out the reading of electricity consumption in the family of oneself by corresponding equipment, and power department can be carried out using internet
Real-time power consumption condition is effectively grasped, and is targetedly effectively adjusted to the service condition of household electrical appliance
With the specific works time of the equipment such as solution, such as TV, air-conditioning, the reasonable distribution lighted accordingly according to electricity price.
Therefore, urgent need will provide a kind of the intelligent electric energy meter to solve above-mentioned technical problem.
Summary of the invention
The object of the present invention is to provide a kind of the intelligent electric energy meters, and the Intelligentized electric energy table structure is simple, easy to use, easily
In assembly and production, low in cost and good manufacturability is easy to process, while improving the working efficiency of power department, reduces mistake
Accidentally incidence.
To achieve the goals above, the present invention provides a kind of the intelligent electric energy meter, which includes measurement
Unit, display portion, single-chip microcontroller, Serial E ZPROM storage, communications portion and power unit；Wherein,
Measuring unit is converted the voltage in power grid is corresponding to the progress of the signal of electric current, is passed through A/D in single-chip microcontroller and is turned
Parallel operation realizes effective low level signal conversion, and electric current is converted by voltage transformer and current transformer, most end form
It is transferred in single-chip microcontroller at low level signal is exchanged；
Display portion will add up electric energy accordingly by LCD screen and Various types of data is shown accordingly, and single-chip microcontroller carries out
Processing, calculating and the control LCD screen of data show that final feedback arrives control centre；
Serial E ZPROM stores external on single-chip microcontroller, specific electricity, electric energy meter for using each period user
Constant and time parameter stored；
Communications portion realizes that the data between electric energy meter and hand-held transcriber are transmitted using infrared communication, and power unit is to table
Interior realization power supply.
Preferably, LCD screen is connect with the LCD interface on single-chip microcontroller.
Preferably, carried out data transmission between communications portion and single-chip microcontroller by infrared interface.
Preferably, single-chip microcontroller TDK71M6521, the driver equipped with MPU kernel, RTC, FLASH and LCD, also, also
Equipped with 22 simulators, to carry out simulation input, the temperature-compensating of number, the reference of precision and 32 CE.
Preferably, power unit is that alternating current obtains stable DC low-voltage into table after over commutation, filtering, pressure stabilizing
Power supply.
Preferably, power unit is to be powered using battery into table.
According to the above technical scheme, the metering section of electric energy meter and central processing portion are all the cores in this system
Point, mainly make using dedicated metering chip as the content of core, analog current used in sampling and voltage signal
It realizes corresponding calculating, effective instantaneous power is finally obtained, and obtain effective energy value by accumulative, finally in electric energy meter
It is middle that data are effectively saved.Central processing is read out corresponding continuous data to data on time, and for data
Relevant information is effectively handled.Memory module is mainly used in special storage equipment.Clock part therein is main
It is the reference standard for the device statistics specific time, as the time.It is usually Utilities Electric Co. for user there are also communication module
Specific electricity consumption situation carry out corresponding data analysis and acquisition.Power module is mainly in the alternating current utilized in transformer
Low-voltage AC is obtained, it is final to realize steady dc voltage required for user using rectification, pressure stabilizing and filtering, and then realize
Metering module, central processing portion, communication part, storage section, clock module, the display module of electric energy provide required electricity
Source.The management of power supply is primarily with respect to main power source management corresponding with reserve battery realization, in the electric wire running of AC network
When normal, system is generally by power supply power supply, when the power line of AC network powers off, switches in time spare
The supply of battery progress power supply.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural module diagram of electric energy meter provided in the present invention.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Referring to Fig. 1, the present invention provides a kind of the intelligent electric energy meter, which includes measuring unit, display unit
Point, single-chip microcontroller, Serial E ZPROM storage, communications portion and power unit；Wherein,
Measuring unit is converted the voltage in power grid is corresponding to the progress of the signal of electric current, is passed through A/D in single-chip microcontroller and is turned
Parallel operation realizes effective low level signal conversion, and electric current is converted by voltage transformer and current transformer, most end form
It is transferred in single-chip microcontroller at low level signal is exchanged；
Display portion will add up electric energy accordingly by LCD screen and Various types of data is shown accordingly, and single-chip microcontroller carries out
Processing, calculating and the control LCD screen of data show that final feedback arrives control centre；
Serial E ZPROM stores external on single-chip microcontroller, specific electricity, electric energy meter for using each period user
Constant and time parameter stored；
Communications portion realizes that the data between electric energy meter and hand-held transcriber are transmitted using infrared communication, and power unit is to table
Interior realization power supply.
LCD screen is connect with the LCD interface on single-chip microcontroller.In one embodiment, display circuit uses general liquid crystal
LCD 1602 is shown, mainly in digital form intuitively shows the electricity consumption of electrical appliance.The 8 of LCD1602
The PO of bit parallel data mouth and single-chip microcontroller mouth is attached.The P1.0-P12 of RS.RW.EN control terminal and single-chip microcontroller connection.Wherein 3
The potentiometer that foot meets lOK is used to adjust the contrast of LCD.
Carried out data transmission between communications portion and single-chip microcontroller by infrared interface.
Single-chip microcontroller is TDK71M6521, the driver equipped with MPU kernel, RTC, FLASH and LCD, also, also equipped with
22 simulators, to carry out simulation input, the temperature-compensating of number, the reference of precision and 32 CE.
Serial E ZPROM storage uses AT24C02, which is attached using the form of I2C bus with single-chip microcontroller,
The P2.2 foot of the connection of the P2.1 foot of middle SCL and single-chip microcontroller, SDA and single-chip microcontroller connects.After a data often have been calculated in single-chip microcontroller, together
When be sent to liquid crystal display and AT24C02 is saved, in case system cut-off and after restoring electricity, can continue to measure electric energy.It is single
The P2.4 foot of piece machine is connected to a key, for being zeroed out to the data that AT24C02 is saved.
The offer of above-mentioned power supply can use two schemes, one of which be power unit be alternating current through over commutation, filtering,
Stable DC low-voltage is obtained after pressure stabilizing to power into table.The advantages of this scheme is powered stable, but needs complexity
Power circuit, lead to cost, power consumption and a series of problem such as power failure data protection and electrical isolation.
Another scheme is that power unit is to be powered using battery into table, and this mode has the characteristics that energy consumption is lower,
It is simple and feasible when design, it has great advantages.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (6)
1. a kind of the intelligent electric energy meter, which is characterized in that the intelligent electric energy meter includes measuring unit, display portion, monolithic
Machine, Serial E ZPROM storage, communications portion and power unit；Wherein,
Measuring unit is converted the voltage in power grid is corresponding to the progress of the signal of electric current, passes through A/D converter in single-chip microcontroller
Realize effective low level signal conversion, electric current is converted by voltage transformer and current transformer, ultimately forms friendship
Low level signal is flowed to be transferred in single-chip microcontroller；
Display portion will add up electric energy accordingly by LCD screen and Various types of data is shown accordingly, and single-chip microcontroller carries out data
Processing, calculating and control LCD screen show, final feedback to control centre；
Serial E ZPROM stores the normal of specific electricity, electric energy meter external on single-chip microcontroller, for using each period user
Several and time parameter is stored；
Communications portion realizes that the data between electric energy meter and hand-held transcriber are transmitted using infrared communication, and power unit is to real in table
Now power.
2. the intelligent electric energy meter according to claim 1, which is characterized in that the LCD interface in LCD screen and single-chip microcontroller connects
It connects.
3. the intelligent electric energy meter according to claim 1, which is characterized in that by infrared between communications portion and single-chip microcontroller
Interface carries out data transmission.
4. the intelligent electric energy meter according to claim 1, which is characterized in that single-chip microcontroller TDK71M6521 is equipped in MPU
The driver of core, RTC, FLASH and LCD, also, also equipped with 22 simulators, to carry out the temperature of simulation input, number
Degree compensation, the reference of precision and 32 CE.
5. the intelligent electric energy meter according to claim 1, which is characterized in that power unit be alternating current through over commutation, filtering,
Stable DC low-voltage is obtained after pressure stabilizing to power into table.
6. the intelligent electric energy meter according to claim 1, which is characterized in that power unit is to be supplied using battery into table
Electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646024.7A CN110221122A (en) | 2019-07-17 | 2019-07-17 | The intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646024.7A CN110221122A (en) | 2019-07-17 | 2019-07-17 | The intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
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| CN110221122A true CN110221122A (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910646024.7A Pending CN110221122A (en) | 2019-07-17 | 2019-07-17 | The intelligent electric energy meter |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144832A (en) * | 2006-09-14 | 2008-03-19 | 北京航空航天大学 | Single phase electric energy meter based on internet |
| CN201352233Y (en) * | 2009-05-18 | 2009-11-25 | 深圳市森晖电子有限公司 | Three-phase multifunctional electric energy meter with power carrier communication |
| CN203084072U (en) * | 2013-02-21 | 2013-07-24 | 浙江立新仪表制造有限公司 | Single-pole single-phase multifunctional guide rail type electric energy meter |
-
2019
- 2019-07-17 CN CN201910646024.7A patent/CN110221122A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144832A (en) * | 2006-09-14 | 2008-03-19 | 北京航空航天大学 | Single phase electric energy meter based on internet |
| CN201352233Y (en) * | 2009-05-18 | 2009-11-25 | 深圳市森晖电子有限公司 | Three-phase multifunctional electric energy meter with power carrier communication |
| CN203084072U (en) * | 2013-02-21 | 2013-07-24 | 浙江立新仪表制造有限公司 | Single-pole single-phase multifunctional guide rail type electric energy meter |
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Application publication date: 20190910 |