CN202041566U - One-phase fee-controlling intelligent electric energy meter - Google Patents
One-phase fee-controlling intelligent electric energy meter Download PDFInfo
- Publication number
- CN202041566U CN202041566U CN2010206659490U CN201020665949U CN202041566U CN 202041566 U CN202041566 U CN 202041566U CN 2010206659490 U CN2010206659490 U CN 2010206659490U CN 201020665949 U CN201020665949 U CN 201020665949U CN 202041566 U CN202041566 U CN 202041566U
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- China
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- electric energy
- energy meter
- esam
- micro processor
- communication interface
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- Expired - Fee Related
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Abstract
The utility model relates to a one-phase fee-controlling intelligent electricity meter which comprises an electric energy meter, a power source, a relay, a micro processor, an ESAM (Embedded Secure Access Module), an LCD (Liquid Crystal Display), a communication interface, a pulse output, a clock and a data storage, wherein the micro processor is connected with the electric energy meter, the power source, the relay, the ESAM, the LCD, the communication interface, the pulse output, the clock and the data storage respectively. The intelligent electric energy meter has the main advantages that the ESAM is arranged in the existing electric energy meter, the function of the micro processor is increased, the zero-sequence current detection is added, and a load switch is arranged, wherein the ESAM is used for coding and decoding key communication contents, so as to prevent the unauthorized operations; the micro processor is enhanced, so as to record the key events and provide a reliable data base for the tracking maintenance; the zero-sequence current detection is added, so as to prevent the electricity stealing of a user by the method with a live wire and a zero wire; and the load switch is arranged, so as to eliminate arrearages of the user and realize remote power on and power off.
Description
Technical field
The utility model relates to a kind of single-phase intelligent expense control electric energy meter.
Background technology
Existing along with China's rapid development of economy, all trades and professions are increasing to the demand of electricity, and the unbalanced phenomenon of different time power consumption is also serious day by day.In order to alleviate the sharp-pointed day by day imbalance between power supply and demand of China, regulate load curve, improve the unbalanced phenomenon of power consumption, the power department of domestic part provinces and cities has begun progressively to have released multi-rate electric energy meter, to user's power consumption time-sharing measurement.
Yet along with the change in epoch, user's request variation, the increasing of the variation of power utilization environment and stealing arrearage situation.Various accidents all may influence the stability and the security of electric energy meter, existing electric energy meter can not satisfy current requirement, for this reason, be necessary that some critical events are taken place electric energy meter carries out record, the crucial Content of communciation of electric energy meter is carried out encrypting and decrypting, thereby just improved the security and the stability of electric energy meter, write down accurately in the time of also providing and maintain easily.Therefore existing electric energy meter awaits further to improve.
Summary of the invention
In order to overcome above-mentioned defective, the purpose of this utility model provides a kind of single-phase intelligent expense control electric energy meter.
To achieve these goals, the present invention adopts following technical scheme:
A kind of single-phase intelligent takes control electric energy meter, comprise electric energy metrical, power supply, relay, microprocessor, ESAM module, LCD demonstration, communication interface, pulse output, clock, data storage, microprocessor is connected with electric energy metrical, power supply, relay, ESAM module, LCD demonstration, communication interface, pulse output, clock, data storage respectively.
Electric energy metrical:
By professional computation chip:, finish voltage, electric current (comprising neutral line current), power, the power factor of electric energy meter, the measurement of frequency operational factor by voltage sample, current sample; And provide data input signal for forward and reverse meritorious electric weight and each rate electric weight.This module can realize exchanges data by the communication interface and the microprocessor of chip internal.
Power supply:
For total system provides the power supply support, 220V alternating current during the power supply input is exported the following direct supply of a few road 5V or 5V, for each module provides power supply.
Relay:
Be used to control the user load break-make, realize cutting off, recovering the user load electricity consumption.
Microprocessor:
Be the core of total system, finish data acquisition, data storage, data operation, demonstration, communication, corresponding event record.Be characterized in inner FLASH storer, ROM storer, timer, external interrupt mouth, Uart interface.You operate by programmed control.
The ESAM module:
Be used for the message exchange safety certification.By solid state medium or virtual medium to expense control intelligent electric energy meter carry out the parameter setting, the electricity charge that prestore, when information is returned and is write and issue the remote control command operation, need to carry out safety certification by the ESAM module, data encrypting and deciphering is handled to guarantee safety of data transmission and integrality.
LCD shows:
By the LCD screen, the instant amount that measures, cumulative amount and electric energy meter parameter are shown, make things convenient for user inquiring.
Communication interface:
Communication interface can comprise infrared interface, 485 interfaces, carrier interface.Can exist simultaneously, also can select for use part to exist.Its communication interface with carry out data interaction by agreement stipulations and the external world.
Pulse output:
The pulse output packet be contained in the corresponding pulse of must gaining merit of active power, with corresponding pulse per second (PPS) of time, whether make things convenient for the end user to examine and determine electric energy meter working properly.
Clock:
This module can be encapsulated in microprocessor internal, also can be at the outside individualism of microprocessor.The main generation is clock signal, and under power down mode, this module must have powered battery.Mutual by data-interface and microprocessor data.
Data storage:
This module can be encapsulated in microprocessor internal, also can be at the outside individualism of microprocessor.Its characteristic is the data of storage total system, does not lose when power down.Mutual by data-interface and microprocessor data.
The utility model advantage mainly is the ESAM module to be installed, to have strengthened microprocessor function, to have increased the zero-sequence current detection, to have settled on-load switch in existing electric energy meter the inside.Wherein the ESAM module is carried out encrypting and decrypting to crucial Content of communciation, has prevented operation unauthorized; Strengthened microprocessor, critical event has been carried out record, for tracking and maintenance provides the authentic data basis.Increased the zero-sequence current detection, prevented that the user from adopting the mode on a fiery ground to carry out stealing.Settle on-load switch, stopped subscriber arrearage, can realize long-range send electricity and outage.
Description of drawings
Fig. 1 is a functional-block diagram of the present utility model.
Embodiment
Further specify below in conjunction with accompanying drawing:
As shown in the figure, a kind of single-phase intelligent takes control electric energy meter, comprises electric energy metrical, power supply, relay, microprocessor, ESAM module, LCD demonstration, communication interface, pulse output, clock, data storage.
Power supply provides the voltage support for whole electric energy.
The data-signal of electric energy metrical sampling sends microprocessor to, the time parameter record data that microprocessor provides in conjunction with clock module according to electric power signal are to data memory module, and show related content by the LCD display module as requested, as requested by pulse delivery outlet output pulse.When communication interface was received signal, communication interface passed to microprocessor to signal, and microprocessor is decrypted processing by the ESAM module, the legitimacy of confirmation message, and organize message, by ESAM module encrypt message, return by communication interface.When electric energy meter reached actuating of relay condition, microprocessor carried out Long-distance Control by order to relay, realized management expectancy.
Claims (1)
1. single-phase control intelligent electric energy meter that takes, it is characterized in that: comprise electric energy metrical, power supply, relay, microprocessor, ESAM module, LCD demonstration, communication interface, pulse output, clock, data storage, microprocessor is connected with electric energy metrical, power supply, relay, ESAM module, LCD demonstration, communication interface, pulse output, clock, data storage respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206659490U CN202041566U (en) | 2010-12-17 | 2010-12-17 | One-phase fee-controlling intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206659490U CN202041566U (en) | 2010-12-17 | 2010-12-17 | One-phase fee-controlling intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041566U true CN202041566U (en) | 2011-11-16 |
Family
ID=44969004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206659490U Expired - Fee Related CN202041566U (en) | 2010-12-17 | 2010-12-17 | One-phase fee-controlling intelligent electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424996A (en) * | 2015-12-11 | 2016-03-23 | 国网北京市电力公司 | Ammeter control system and method |
| CN110231504A (en) * | 2019-07-09 | 2019-09-13 | 国网河北省电力有限公司邢台供电分公司 | Detect the method and stealing detection device of electricity stealing |
-
2010
- 2010-12-17 CN CN2010206659490U patent/CN202041566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424996A (en) * | 2015-12-11 | 2016-03-23 | 国网北京市电力公司 | Ammeter control system and method |
| CN105424996B (en) * | 2015-12-11 | 2018-04-03 | 国网北京市电力公司 | Ammeter control system and method |
| CN110231504A (en) * | 2019-07-09 | 2019-09-13 | 国网河北省电力有限公司邢台供电分公司 | Detect the method and stealing detection device of electricity stealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20121217 |