CN1621853A - Electronic energy meter - Google Patents
Electronic energy meter Download PDFInfo
- Publication number
- CN1621853A CN1621853A CN 200310115843 CN200310115843A CN1621853A CN 1621853 A CN1621853 A CN 1621853A CN 200310115843 CN200310115843 CN 200310115843 CN 200310115843 A CN200310115843 A CN 200310115843A CN 1621853 A CN1621853 A CN 1621853A
- Authority
- CN
- China
- Prior art keywords
- energy meter
- counting
- submeter
- electric energy
- cabinet
- Prior art date
- 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.)
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Abstract
The electronic watt-hour meter has one casing, one total meter, several branch meters, one shared counting and controlling unit, connected communication interface, DC power source, display circuit and keyboard. The total meter, the branch meters and the shared counting and controlling unit are connected. The casing is provided with opening sensor to prevent illegal opening. The present invention has the advantages of low cost, high flexibility, high reliability and capacity of preventing electricity stealing, and is suitable for measurement and counting of the electricity quantity.
Description
Technical field:
The present invention relates to a kind of electronic electric energy meter, belong to the electrical instrumentation technical field.
Background technology:
Full-electronic electric energy product mainly is that the electronic electric energy meter that polylith is identical is installed in one group of multiuser electric energy meter of formation in the table case at present, wherein each ammeter all has unit such as separately measurement, counting control, demonstration, communication, power supply simultaneously, this make the cost height, volume is big, power consumption is big, poor reliability.
Summary of the invention:
The objective of the invention is to provide a kind of electronic electric energy meter, can make a plurality of measuring unit function one cover counting controls, communication, direct supply, Display And Keyboard, and be equipped with a summary table so that detect the relatively error of the measured value between each submeter at any time.
Technical scheme of the present invention is achieved in that a kind of electronic electric energy meter, is included in a summary table and a plurality of submeter are installed in the cabinet.It is characterized in that, the shared cover counting control unit of summary table and submeter also is housed in this cabinet, and the communication interface that is attached thereto, direct supply, display circuit and keyboard, each interface of said summary table and submeter and counting control unit links to each other.Counting unit can adopt the INTEL8xC196 series monolithic, and communication interface adopts RS-232, RS-485 interface, and display circuit has adopted the 74LS164 SSC of 74 series, and the detecting sensor that opens the door that is used to prevent stealing is installed in the cabinet.
It is low that good effect of the present invention is to have cost, and dirigibility, the advantage that reliability is high can also prevent that electricity filching behavior from taking place, and can measure, add up each user's electric weight operating position at any time simultaneously.
Embodiment:
Electronic electric energy meter is made up of counting and control device, branch table unit, Display And Keyboard unit, communication unit, five major parts of direct supply.Exchange parts such as order line, air switch, distribution terminal, cabinet, open door sensor in addition in addition.AC power through at first measuring through summary table behind the master switch, is distributed to each submeter by internal bus after entering ammeter box through service entrance switch then.Voltage, current sample element in summary table and each submeter are transformed into weak electric signal with 220V voltage and line current, by transducer electric current and voltage are carried out product calculation, produce the square pulse with the corresponding variable period of watt level.This pulse enters counting and control module, carries out shaping and counting through paired pulses, can obtain the instantaneous power of each submeter, and the accumulative total instantaneous power just obtains the electric degree value of each submeter.Show various real-time information in the Display And Keyboard unit, various functions are provided with, realize long distance meter reading by communication unit.
Claims (2)
1, a kind of electronic electric energy meter is included in a summary table and a plurality of submeter is installed in the cabinet; It is characterized in that, the shared cover counting control unit of summary table and submeter also is housed in this cabinet, and the communication interface that is attached thereto, direct supply, display circuit and keyboard, each interface of said summary table and submeter and counting control unit links to each other.
2, electronic electric energy meter according to claim 1 is characterized in that being equipped with in the said cabinet detecting sensor that opens the door that is used to prevent stealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310115843 CN1621853A (en) | 2003-11-28 | 2003-11-28 | Electronic energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310115843 CN1621853A (en) | 2003-11-28 | 2003-11-28 | Electronic energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1621853A true CN1621853A (en) | 2005-06-01 |
Family
ID=34760567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310115843 Pending CN1621853A (en) | 2003-11-28 | 2003-11-28 | Electronic energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1621853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007063180A1 (en) * | 2005-12-01 | 2007-06-07 | Valtion Teknillinen Tutkimuskeskus | Method and system for the calibration of meters |
-
2003
- 2003-11-28 CN CN 200310115843 patent/CN1621853A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007063180A1 (en) * | 2005-12-01 | 2007-06-07 | Valtion Teknillinen Tutkimuskeskus | Method and system for the calibration of meters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |