CN202994900U - Multifunctional digital indicator - Google Patents
Multifunctional digital indicator Download PDFInfo
- Publication number
- CN202994900U CN202994900U CN 201220707707 CN201220707707U CN202994900U CN 202994900 U CN202994900 U CN 202994900U CN 201220707707 CN201220707707 CN 201220707707 CN 201220707707 U CN201220707707 U CN 201220707707U CN 202994900 U CN202994900 U CN 202994900U
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- chip
- module
- singlechip
- interface
- chip microcomputer
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Abstract
A multifunctional digital indicator relates to a digital indicator used on an electric power meter cabinet body. The multifunctional digital indicator comprises a power management module, a singlechip, a storage chip, a measurement chip, an LCD drive module and an LCD display module, wherein the measurement chip is connected with the singlechip, the storage chip is connected with the singlechip, one output end of the singlechip is connected with the LCD drive module, an output end of the LCD drive module is connected with the LCD display module, the measurement chip is connected with the singlechip, the measurement chip is provided with an acquisition circuit consisting of three voltage transformers and three current transformers, a key interface, a communication interface, a digital input interface and a digital output interface are respectively connected on the singlechip, the power management module is connected electrically with the singelchip, the storage chip, the measurement chip, the LCD drive module, the LCD display module, the communication interface, the digital input interface and the digital output interface respectively. The digital indicator has the advantages of strong antijamming capability and high reliability, safety and precision.
Description
Technical field
The utility model 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 utility model purpose is to provide the multifunctional digital that a kind of precision is high, antijamming capability is strong instrument.
the utility model comprises 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, connect respectively keystroke interface on described single-chip microcomputer, 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 to.
Instrument described in the utility model 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 it is better anti-interference that this equipment is had, 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, make the precision of instrument greatly improve.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
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, connect respectively keystroke interface 8 on single-chip microcomputer 2, 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 10 is electrically connected to.
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, connect respectively keystroke interface on described single-chip microcomputer, 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 to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707707 CN202994900U (en) | 2012-12-20 | 2012-12-20 | Multifunctional digital indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707707 CN202994900U (en) | 2012-12-20 | 2012-12-20 | Multifunctional digital indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994900U true CN202994900U (en) | 2013-06-12 |
Family
ID=48566069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220707707 Expired - Fee Related CN202994900U (en) | 2012-12-20 | 2012-12-20 | Multifunctional digital indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981047A (en) * | 2012-12-20 | 2013-03-20 | 贝克电气（江苏）有限公司 | Multifunctional digital meter |
-
2012
- 2012-12-20 CN CN 201220707707 patent/CN202994900U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981047A (en) * | 2012-12-20 | 2013-03-20 | 贝克电气（江苏）有限公司 | Multifunctional digital meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20201220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |