CN102981047A - Multifunctional digital meter - Google Patents
Multifunctional digital meter Download PDFInfo
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- CN102981047A CN102981047A CN2012105560443A CN201210556044A CN102981047A CN 102981047 A CN102981047 A CN 102981047A CN 2012105560443 A CN2012105560443 A CN 2012105560443A CN 201210556044 A CN201210556044 A CN 201210556044A CN 102981047 A CN102981047 A CN 102981047A
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- chip microcomputer
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Abstract
The invention discloses a multifunctional digital meter and relates to a digital meter used on an electrical meter cabinet body. The multifunctional digital meter comprises a power supply management module, a singlechip, a storage chip, a measuring chip, an LCD (liquid crystal display) driving module and an LCD module, wherein the measuring chip is connected with the singlechip; the storage chip is connected with the singlechip; an output end of the singlechip is connected with the LCD driving module; an output end of the LCD driving module is connected with the LCD module; the measuring chip is connected with the singlechip, and provided with a collection circuit formed by three voltage transformers and three current transformers; the singlechip is connected with a keying interface, a communication interface, and a digital input and output interface respectively; and the power supply management module is electrically connected with the singlechip, the storage chip, the measuring chip, the LCD driving module, the LCD module, the communication interface and the digital input and output interface respectively. The multifunctional digital meter is strong in anti-interference ability, and high in reliability, safety degree and accuracy.
Description
Technical field
The present invention relates to a kind of for the digital displaying meter on the electric instrument cabinet.
Background technology
Along with the ammeter market competition is white-hot, electric instrument is just gradually towards many rates, multi-functional and high precision, low-cost future development, present electric instrument major part is to adopt pointer instrument, its precision is not high, its information acquisition is directly from the outside line collection, there is stronger interference, causes equally instrument to show deviation.
Summary of the invention
The object of the invention is to provide the multifunctional digital instrument that a kind of precision is high, antijamming capability is strong.
The present invention includes power management module, single-chip microcomputer, storage chip, computation chip, the LCD driver module, the LCD display module, described computation chip is connected with described single-chip microcomputer, described storage chip is connected with described single-chip microcomputer, an output terminal of described single-chip microcomputer is connected with described LCD driver module, the output terminal of described LCD driver module is connected with described LCD display module, described computation chip is connected with described single-chip microcomputer, described computation chip is provided with three voltage transformer (VT) and three collection circuits that current transformer forms, on described single-chip microcomputer, connect respectively keystroke interface, communication interface, the numeral input, output interface, described power management module respectively with single-chip microcomputer, storage chip, computation chip, the LCD driver module, the LCD display module, communication interface, the numeral input, output interface is electrically connected.
Instrument of the present invention is that LCD shows, observe intuitively, this instrument is with communication, control function, and its external signal collection is 3 PT mutual inductors, 3 CT mutual inductors, the collection that forms, it is well isolated live part, and that this equipment of making has is better anti-interference, not with the feature of high-tension electricity, this Acquisition Circuit is simple, and reliability is high, and degree of safety is high; Adopt single-chip microcomputer that instrument is controlled, so that the precision of instrument improves greatly.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Embodiment
As shown in Figure 1, this multifunctional digital instrument, comprise power management module 1, single-chip microcomputer 2, storage chip 3, computation chip 4, LCD driver module 5, LCD display module 6, computation chip 4 is connected with single-chip microcomputer 2, storage chip 3 is connected with single-chip microcomputer 2, an output terminal of single-chip microcomputer 2 is connected with LCD driver module 5, the output terminal of LCD driver module 5 is connected with LCD display module 6, computation chip 4 is connected with single-chip microcomputer 2, computation chip 4 is provided with three voltage transformer (VT) and three collection circuits 7 that current transformer forms, on single-chip microcomputer 2, connect respectively keystroke interface 8, communication interface 9, the numeral input, output interface 10, power management module 1 respectively with single-chip microcomputer 2, storage chip 3, computation chip 4, LCD driver module 5, LCD display module 6, communication interface 9, the numeral input, output interface is electrically connected 10.
Claims (1)
1. multifunctional digital instrument, it is characterized in that comprising power management module, single-chip microcomputer, storage chip, computation chip, the LCD driver module, the LCD display module, described computation chip is connected with described single-chip microcomputer, described storage chip is connected with described single-chip microcomputer, an output terminal of described single-chip microcomputer is connected with described LCD driver module, the output terminal of described LCD driver module is connected with described LCD display module, described computation chip is connected with described single-chip microcomputer, described computation chip is provided with three voltage transformer (VT) and three collection circuits that current transformer forms, on described single-chip microcomputer, connect respectively keystroke interface, communication interface, the numeral input, output interface, described power management module respectively with single-chip microcomputer, storage chip, computation chip, the LCD driver module, the LCD display module, communication interface, the numeral input, output interface is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105560443A CN102981047A (en) | 2012-12-20 | 2012-12-20 | Multifunctional digital meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105560443A CN102981047A (en) | 2012-12-20 | 2012-12-20 | Multifunctional digital meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102981047A true CN102981047A (en) | 2013-03-20 |
Family
ID=47855255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105560443A Pending CN102981047A (en) | 2012-12-20 | 2012-12-20 | Multifunctional digital meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102981047A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908751A (en) * | 2017-02-14 | 2017-06-30 | 上海双宾电气有限公司 | It is a kind of can straightened up in place multifunctional intellectual electric instrument |
| CN108710391A (en) * | 2018-03-13 | 2018-10-26 | 广东里田电力工业有限公司 | A kind of aobvious instrument of the novel behaviour with intelligent voice prompt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449418U (en) * | 2009-08-11 | 2010-05-05 | 惠州市龙鼎盛电力科技有限公司 | Three-phase electric meter using an electric power carrier technique |
| CN201503468U (en) * | 2009-09-28 | 2010-06-09 | 威胜集团有限公司 | Electric energy meter for voltage quality |
| CN201917610U (en) * | 2010-12-28 | 2011-08-03 | 利尔达科技有限公司 | Electric energy metering device |
| CN202075342U (en) * | 2010-09-08 | 2011-12-14 | 珠海中慧微电子有限公司 | Three-phase SOC (system-on-chip) intelligent power meter |
| CN202372571U (en) * | 2011-12-06 | 2012-08-08 | 江苏盛德电子仪表有限公司 | Remote carrier wave single-phase cost control intelligent electric energy meter |
| CN202994900U (en) * | 2012-12-20 | 2013-06-12 | 贝克电气（江苏）有限公司 | Multifunctional digital indicator |
-
2012
- 2012-12-20 CN CN2012105560443A patent/CN102981047A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449418U (en) * | 2009-08-11 | 2010-05-05 | 惠州市龙鼎盛电力科技有限公司 | Three-phase electric meter using an electric power carrier technique |
| CN201503468U (en) * | 2009-09-28 | 2010-06-09 | 威胜集团有限公司 | Electric energy meter for voltage quality |
| CN202075342U (en) * | 2010-09-08 | 2011-12-14 | 珠海中慧微电子有限公司 | Three-phase SOC (system-on-chip) intelligent power meter |
| CN201917610U (en) * | 2010-12-28 | 2011-08-03 | 利尔达科技有限公司 | Electric energy metering device |
| CN202372571U (en) * | 2011-12-06 | 2012-08-08 | 江苏盛德电子仪表有限公司 | Remote carrier wave single-phase cost control intelligent electric energy meter |
| CN202994900U (en) * | 2012-12-20 | 2013-06-12 | 贝克电气（江苏）有限公司 | Multifunctional digital indicator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908751A (en) * | 2017-02-14 | 2017-06-30 | 上海双宾电气有限公司 | It is a kind of can straightened up in place multifunctional intellectual electric instrument |
| CN108710391A (en) * | 2018-03-13 | 2018-10-26 | 广东里田电力工业有限公司 | A kind of aobvious instrument of the novel behaviour with intelligent voice prompt |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |