CN201886042U - Smart electricity meter for state grid single-phase carrier long-distance prepayment - Google Patents
Smart electricity meter for state grid single-phase carrier long-distance prepayment Download PDFInfo
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- CN201886042U CN201886042U CN2010205257118U CN201020525711U CN201886042U CN 201886042 U CN201886042 U CN 201886042U CN 2010205257118 U CN2010205257118 U CN 2010205257118U CN 201020525711 U CN201020525711 U CN 201020525711U CN 201886042 U CN201886042 U CN 201886042U
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Abstract
The utility model discloses a smart electricity meter for state grid single-phase carrier long-distance prepayment. The smart electricity meter which comprises a voltage sampling module, a current sampling module, an electric energy metering chip and a digital signal processing chip is characterized by further comprising an event recording module which records and eternally stores all state information of the electricity meter, a big-screen active matrix liquid crystal display module which displays all the state information of the electricity meter and a filter which filters voltage and current signals sampled by the voltage sampling module and the current sampling module. If the smart electricity meter is adopted, the conventional electricity meter is enabled to have the functions, such as electric energy metering, information storing and processing, real-time monitoring, information interchanging, and the like.
Description
Technical field
The utility model relates to a kind of electric energy meter, and single-phase carrier wave remote expense control intelligent electric energy meter is netted by in particular a kind of state.
Background technology
Along with the reform of network system, existing electric energy meter all can not satisfy the needs of electric energy meter development in the function of data-handling capacity, logout ability and information interaction.
Therefore, prior art has yet to be improved and developed.
The utility model content
The purpose of this utility model is to provide a kind of state to net single-phase carrier wave remote expense control intelligent electric energy meter, be intended to solve existing electric energy meter in data-handling capacity, the deficiency on logout ability and the information interaction function.
The technical solution of the utility model is as follows:
Single-phase carrier wave remote expense control intelligent electric energy meter is netted by a kind of state, and it comprises voltage sample module, current sample module, electric energy computation chip, digital signal processing chip, it is characterized in that, also comprises:
Record and permanent logout module of preserving all status informations of electric energy meter;
The wide temperature LCD MODULE of big picture that can show all status informations of electric energy meter;
The voltage and current signal that voltage sample module and current sample module are taked carries out the wave filter of Filtering Processing;
Described voltage sample module and current sample module are connected the wave filter of various correspondences respectively, described wave filter connects described electric energy computation chip, described electric energy computation chip connects digital signal processing chip, described digital signal processing chip connection event logging modle and the big wide temperature LCD MODULE of picture.
Single-phase carrier wave remote expense control intelligent electric energy meter is netted by described state, and wherein, described electric energy meter also comprises communication module, and described communication module comprises infrared communication module, carrier communication module and serial communication modular; Described communication module is used for electric energy meter and carries out data transmission, and broadcasting is during the school, checks meter and manages.
Single-phase carrier wave remote expense control intelligent electric energy meter is netted by described state, and wherein, described electric energy meter also comprises the security authentication module of the transmission data of guaranteeing that electric energy meter is safe and reliable, and described security authentication module connects described digital signal processor.
Single-phase carrier wave remote expense control intelligent electric energy meter is netted by described state, and wherein, described electric energy meter also comprises the dump block of the data of removing the ammeter storage inside, and described dump block connects described digital signal processing chip.
Single-phase carrier wave remote expense control intelligent electric energy meter is netted by described state, and wherein, described electric energy meter comprises that also one has the clock module of calendar, timing, leap year auto-conversion function, and described clock module connects described digital signal processing chip.
Single-phase carrier wave remote expense control intelligent electric energy meter is netted by described state, and wherein, described electric energy meter comprises that also one is used to revise the programming module of electric energy meter internal processes, and described programming module connects described digital signal processing chip.
Described electronic single-phase carrier wave multi-rate electric energy meter, wherein, described programming module also is provided with a program switch, is used to protect the safety of electric energy meter programming operation.
Single-phase carrier wave remote expense control intelligent electric energy meter is netted by described state, and wherein, described serial communication modular is the RS485 communication module.
The beneficial effects of the utility model: the utility model is by adopting ultra-large digital signal processing chip, forever preserving advanced technologies such as logout module, RS485 communication and the infrared communication of information, the big wide temperature liquid crystal display of picture, make electric energy meter integrate numerous functions, have functions such as electrical energy metering, information stores and processing, monitoring in real time, information interaction.
Description of drawings
Fig. 1 is the theory diagram of electric energy meter in the utility model;
Fig. 2 is the LCD display interface reference diagram of electric energy meter in the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.
As shown in Figure 1, described electric energy meter comprises current sample module, voltage sample module, electric energy computation chip, digital signal processing chip, storer, logout module, the big wide temperature LCD MODULE of picture and communication module.Also comprise the wave filter that is separately positioned on current sample module and voltage sample module output.
Described logout module is used for record and permanent all status informations of electric energy meter of preserving; The wide temperature LCD MODULE of described big picture is used to show all status informations of electric energy meter; Described voltage sample module and current sample module take a sample respectively on the single-phase electric wire the voltage and current signal, and carry out sending into electric energy computation chip after the Filtering Processing through wave filter respectively.
Described voltage sample module and current sample module are connected the wave filter of various correspondences respectively, described wave filter connects described electric energy computation chip, described electric energy computation chip connects digital signal processing chip, described digital signal processing chip connection event logging modle and the big wide temperature LCD MODULE of picture.
Described electric energy meter also comprises communication module, and described communication module comprises infrared communication module and serial communication modular; Described communication module is used for electric energy meter and carries out data transmission, and broadcasting is during the school, checks meter and manages.Described serial communication modular is the RS485 communication module.
Described electric energy meter also comprises the security authentication module of the transmission data of guaranteeing that electric energy meter is safe and reliable; The dump block that also comprises the data of removing the ammeter storage inside; Comprise that also one has the clock module of calendar, timing, leap year auto-conversion function; Comprise that also one is used to revise the programming module of electric energy meter internal processes; Described programming module also is provided with a program switch, is used to protect the safety of electric energy meter programming operation.Described clock module, dump block, security authentication module, programming module are connected to described digital signal processing chip respectively.
The principle of work of intelligent electric energy meter is, during intelligent electric energy meter work, voltage, electric current through sampling module be converted to sampled signal and by Filtering Processing after send into electric energy computation chip, electric energy computation chip is converted into pulse signal with energy signal and delivers to digital signal processing chip and carry out the electric pulse collection, electric weight accumulative total and every computational analysis are handled, and its result is kept in the storer; Simultaneously digital signal processing chip is finished function treatment such as infrared, 485 communications, liquid crystal display.Electric energy meter has clock circuit, guarantee clock under nominal temperature clock day error less than 0.5s/d.Adopt Redundancy Design on the data security, the The data multiple duplication guarantees that continuous data is reliable.
The major function of described intelligent electric energy meter has function of measuring, changes rate and period and electricity price scheme, safety certification, electric parameter measurement and monitoring, logout, clocking capability, Presentation Function, communication function, port output, warning function, program switch and the measure of programming password double protection automatically.
Described intelligent electric energy meter has function of measuring, comprises that electric quantity metering, electric weight freeze, zero clearing.
The electric quantity metering function of described intelligent electric energy meter comprises:
(1) have forward and reverse active energy function of measuring, can store its data, and it is meritorious that combination can be set in view of the above;
(2) have the time-sharing measurement function, active energy by the corresponding period add up, store total, point, peak respectively, put down, the paddy electric flux;
(3) can store last 12 months total electric energy and each rate electric flux; The data storage boundary is the 24 o'clock the end of month constantly, or the integral point in every month No. 1 to No. 28 constantly.
The electric weight freezing function of described intelligent electric energy meter, electric weight freeze to freeze meritorious point, peak, flat, the paddy electric weight of reaching of forward (oppositely), specifically are divided into following several situation:
(1) regularly freeze: ammeter is according to the time of user's agreement and freeze electric energy data at interval; Each amount of freezing is preserved 12 times;
(2) instantaneous freezing: under improper situation, freeze the data of current calendar, time, all electric fluxs and active power; The instantaneous amount of freezing is preserved last 3 times data;
(3) agreement is freezed: think in the old and new two cover rates/periods conversion, the conversion of ladder electricity price or Utilities Electric Co. and freeze to change electric flux and other significant datas constantly when special requirement is arranged, preserve last 2 freezing data;
(4) day freezes: store electric flux constantly at zero point every day, store 60 days data;
(5) integral point freezes: the storage integral point moment or the least bit meritorious total electric energy and idle total electric weight and freeze-off time constantly, can store 96 data.
Freezing electric weight can be ferreted out by subscriber card, inspection card or other communication interface, is convenient to carry out power consumption analysis and line loss statistics.
The Protection Counter Functions of described intelligent electric energy meter, electric energy meter only be authorized to and by the situation of safety verification under can carry out the electric weight clear operation, remove the data such as electric flux, the amount of freezing, logout of ammeter storage inside.Electric energy data when the generation moment of permanent recording electric energy meter zero clearing incident and zero clearing.
Described intelligent electric energy meter has automatic conversion rate and period and electricity price scheme function:
(1) ammeter adopts hardware clock circuit, has calendar, timing and leap year auto-conversion function;
(2) calendar, clock and tariff period and electricity price scheme all can be provided with and adjust by RS485, infrared data interface etc., need press the programming key when being provided with, and enter programming state;
(3) have two cover tariff period tables, can change automatically in the moment of agreement;
(4) every cover rate scale comprises two time zones, able to programme at least in a consecutive days 4 kinds of rates and 48 periods is set, and the minimum interval that the period is provided with is 15 minutes, and the period can cross over reset;
(5) have two cover electricity price schemes, change automatically in the time of can or reaching the power consumption level of agreement in moment of agreement.
Described intelligent electric energy meter has the function of safety certification, and electric energy meter is carried out parameter when command operation is set, and needs by strict safety certifications such as password authentification, and is reliable to guarantee data transmission security.
Described intelligent electric energy meter has the function of electric parameter measurement and monitoring, operational factors such as intelligent electric meter energy measurement, record, the current voltage of demonstration, electric current (comprising neutral line current), active power, power factor.In the measuring error (fiducial error) ± 1%.
Described intelligent electric energy meter has the function of logout, and the event recording function of electric weight can write down the programming of ammeter and clear operation and ammeter running status, specifically is divided into following several situation:
(1) generation of permanent recording electric energy meter zero clearing incident constantly and the electric energy data during zero clearing;
(2) record programming total degree, the Data Identification of the moment of nearest 10 programmings, operator's code, programming item;
The moment, operator's code when (3) record total degree (when not comprising the broadcasting school) during the school, nearest 10 schools;
(4) total degree of record power down, the moment that nearest 10 power down take place and finish;
(5) record game clock lid total degree, generation, the finish time of nearest 10 game clock lid incident.Logout can be ferreted out by communication interface, is convenient to carry out statistical study.
Described intelligent electric energy meter has clocking capability, adopts the hardware clock circuit of built-in band temperature compensation, has calendar, timing, leap year auto-conversion function; Internal clocking terminal output frequency is 1Hz.Scope is not more than 5min during the acceptable broadcasting of electric energy meter school; Key and signal code cooperation need not to programme during the broadcasting school; Only allow check and correction every day once, and should avoid electric energy meter carry out freeze or settlement data unloading operation before and after carry out in the 5min.
Described intelligent electric energy meter has Presentation Function, and this electric energy meter adopts the liquid crystal display of the wide temperature Chinese character of giant-screen, has anti-ultraviolet function, and under normal operating position, the LCD life-span was greater than 10 years.
Electric energy meter possesses Automatic Cycle and two kinds of display modes of button; Automatic Cycle shows that the time interval can be provided with in 5～20 seconds; When button showed, LCD should start backlight, do not have when charged close automatically behind the operation 60s backlight.
Have a power failure and show: after the power failure, liquid crystal display is closed automatically; After liquid crystal display was closed, keys available or other modes were waken liquid crystal display up; Wake the back up as do not have operation, Automatic Cycle is closed demonstration after showing one time; The button display operation finishes to close demonstration after 30 seconds.
Described intelligent electric energy meter has communication function, described electric energy meter comprises communication module, described communication comprises infrared communication module, carrier communication module and RS485 serial communication modular, and each module all correspondence have an infrared communication interface, a carrier communication interface, a RS485 communication interface.The communication interface Physical layer is independently of one another, and a kind of damage of communication channel does not influence other channel.Electric energy meter by communication interface can with handheld terminal, data acquisition unit, checkout equipment, computing machine etc. carry out data transmission, broadcasting to the time setting, copy reading, programming, management etc.
RS485 communication interface and electric energy meter internal circuit are realized electrical isolation, and fail-safe circuit is arranged.The default baud rate of modulation system infrared communication interface is 1200bps.RS485 communications speed allows to select in 1200bps, 2400bps, 4800bps, 9600bps, and default setting is 2400bps.Communication interface is by electric property, anti-interference test.
Described intelligent electric energy meter has the function of port output, and electric energy meter possesses optical pulse test output and the electric pulse test output function that is directly proportional with counting electric energy.The electric pulse test is output as the output of light isolation passive, and pulsewidth is 80ms ± 20ms.Electric energy meter possesses a second time signal lead-out terminal.
Described intelligent electric energy meter has warning function, when following fault appears in ammeter, show first display alarm code or alarm in circulation, and the LCD backlight continues to light: when electric energy meter breaks down, show the information code (representing) of makeing mistakes with Err-X X.
Described intelligent electric energy meter has program switch and the measure of programming password double protection, carries out programming operation to prevent unauthorized people.Electric energy meter is only allowing programming state just can carry out programming operation, during the broadcasting school and the meter reading operation be not subjected to the control of program switch.
(1) program switch:
A) program switch adopts the button design, and only can touch program switch after opening seal.
B) under programmable state, if 240 minutes in without any operation, electric energy meter will be closed programming state automatically.
(2) programming password:
A) electric energy meter needs could carry out programming or other special operationals by the programming password authentification earlier.
B) password adopts the two-stage management, and each grade password is made up of 6 arabic numeral; Password Permission Levels difference, executable operation difference.
C) have the personnel of high-grade password authority, can revise the inferior grade password, and carry out all operations of inferior grade password.
D) continuous 3 password input errors, electric energy meter will be closed programing function 24 hours automatically.
Electric energy meter adopts LCD to show, the corresponding reveal codes of displaying contents is referring to the display interface reference diagram of Fig. 2 and the explicit declaration of table 1.
Table 1
Described electric energy meter also is provided with status indicator lamp, is provided with 2 superbrights, long-life LED light emitting diode below LCD display altogether, is used to refer to the various running statuses of electric energy meter, is defined as follows respectively:
The pulse pilot lamp: redness, go out at ordinary times, glimmer during the metering active energy;
Alarm lamp: redness, just often go out, it is bright often to report to the police.
The electric energy meter that adopts present embodiment to provide can be realized electric energy metrical work fast, compactly.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (8)
1. single-phase carrier wave remote expense control intelligent electric energy meter is netted by a state, comprises voltage sample module, current sample module, electric energy computation chip, digital signal processing chip, it is characterized in that, also comprises:
Record and permanent logout module of preserving all status informations of electric energy meter;
The wide temperature LCD MODULE of big picture that can show all status informations of electric energy meter;
The voltage and current signal that voltage sample module and current sample module are taked carries out the wave filter of Filtering Processing;
Described voltage sample module and current sample module are connected the wave filter of various correspondences respectively, described wave filter connects described electric energy computation chip, described electric energy computation chip connects digital signal processing chip, described digital signal processing chip connection event logging modle and the big wide temperature LCD MODULE of picture.
2. single-phase carrier wave remote expense control intelligent electric energy meter is netted by state according to claim 1, it is characterized in that described electric energy meter also comprises communication module, and described communication module comprises infrared communication module, carrier communication module and serial communication modular.
3. single-phase carrier wave remote expense control intelligent electric energy meter is netted by state according to claim 1, it is characterized in that, described electric energy meter also comprises the security authentication module of the transmission data of guaranteeing that electric energy meter is safe and reliable, and described security authentication module connects described digital signal processing chip.
4. single-phase carrier wave remote expense control intelligent electric energy meter is netted by state according to claim 1, it is characterized in that described electric energy meter also comprises the dump block of the data of removing the ammeter storage inside, and described dump block connects described digital signal processing chip.
5. single-phase carrier wave remote expense control intelligent electric energy meter is netted by state according to claim 1, it is characterized in that, described electric energy meter comprises that also one has the clock module of calendar, timing, leap year auto-conversion function, and described clock module connects described digital signal processing chip.
6. single-phase carrier wave remote expense control intelligent electric energy meter is netted by state according to claim 1, it is characterized in that described electric energy meter comprises that also one is used to revise the programming module of electric energy meter internal processes, and described programming module connects described digital signal processing chip.
7. single-phase carrier wave remote expense control intelligent electric energy meter is netted by state according to claim 6, it is characterized in that described programming module also is provided with a program switch.
8. single-phase carrier wave remote expense control intelligent electric energy meter is netted by state according to claim 2, it is characterized in that described serial communication modular is the RS485 communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205257118U CN201886042U (en) | 2010-09-09 | 2010-09-09 | Smart electricity meter for state grid single-phase carrier long-distance prepayment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205257118U CN201886042U (en) | 2010-09-09 | 2010-09-09 | Smart electricity meter for state grid single-phase carrier long-distance prepayment |
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| CN201886042U true CN201886042U (en) | 2011-06-29 |
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| CN2010205257118U Expired - Fee Related CN201886042U (en) | 2010-09-09 | 2010-09-09 | Smart electricity meter for state grid single-phase carrier long-distance prepayment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636672A (en) * | 2012-02-01 | 2012-08-15 | 东莞瑞柯电子科技股份有限公司 | Electric energy monitoring and indicating device |
| CN102901851A (en) * | 2011-07-25 | 2013-01-30 | 南京能瑞自动化设备股份有限公司 | Single-phase remote-cost control intelligent ammeter with RS485 control signal output |
| CN104503897A (en) * | 2014-10-21 | 2015-04-08 | 惠州市龙鼎盛电力科技有限公司 | Electric energy meter software design method capable of realizing multiple interaction modes |
| CN109830096A (en) * | 2018-11-20 | 2019-05-31 | 国电南瑞南京控制系统有限公司 | A kind of single-phase double-channel communication module based on HPLC and MBUS |
| CN112014633A (en) * | 2019-05-29 | 2020-12-01 | 南京南瑞继保工程技术有限公司 | Plug-in type digital double-core metering module |
| CN113721074A (en) * | 2020-11-12 | 2021-11-30 | 王沛 | Novel intelligent electric energy meter |
| CN114384787A (en) * | 2021-11-29 | 2022-04-22 | 国网北京市电力公司 | Calibration method and device for electric energy meter clock |
-
2010
- 2010-09-09 CN CN2010205257118U patent/CN201886042U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901851A (en) * | 2011-07-25 | 2013-01-30 | 南京能瑞自动化设备股份有限公司 | Single-phase remote-cost control intelligent ammeter with RS485 control signal output |
| CN102636672A (en) * | 2012-02-01 | 2012-08-15 | 东莞瑞柯电子科技股份有限公司 | Electric energy monitoring and indicating device |
| CN104503897A (en) * | 2014-10-21 | 2015-04-08 | 惠州市龙鼎盛电力科技有限公司 | Electric energy meter software design method capable of realizing multiple interaction modes |
| CN104503897B (en) * | 2014-10-21 | 2017-07-21 | 惠州市龙鼎盛电力科技有限公司 | A kind of electric energy meter software design method that a variety of interactive modes can be achieved |
| CN109830096A (en) * | 2018-11-20 | 2019-05-31 | 国电南瑞南京控制系统有限公司 | A kind of single-phase double-channel communication module based on HPLC and MBUS |
| CN112014633A (en) * | 2019-05-29 | 2020-12-01 | 南京南瑞继保工程技术有限公司 | Plug-in type digital double-core metering module |
| CN113721074A (en) * | 2020-11-12 | 2021-11-30 | 王沛 | Novel intelligent electric energy meter |
| CN114384787A (en) * | 2021-11-29 | 2022-04-22 | 国网北京市电力公司 | Calibration method and device for electric energy meter clock |
| CN114384787B (en) * | 2021-11-29 | 2024-01-23 | 国网北京市电力公司 | Method and device for calibrating clock of electric energy meter |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20130909 |