CN110221122A - The intelligent electric energy meter - Google Patents

The intelligent electric energy meter Download PDF

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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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CN
China
Prior art keywords
electric energy
chip microcontroller
energy meter
intelligent electric
power
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910646024.7A
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Chinese (zh)
Inventor
吴天凤
姚孟
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910646024.7A priority Critical patent/CN110221122A/en
Publication of CN110221122A publication Critical patent/CN110221122A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/10Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques

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

The intelligent electric energy meter
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.
CN201910646024.7A 2019-07-17 2019-07-17 The intelligent electric energy meter Pending CN110221122A (en)

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
CN110221122A true CN110221122A (en) 2019-09-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910646024.7A Pending CN110221122A (en) 2019-07-17 2019-07-17 The intelligent electric energy meter

Country Status (1)

Country Link
CN (1) CN110221122A (en)

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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