CN107482897A - A kind of modified gold card data acquisition unit based on EMI power-supply filters - Google Patents
A kind of modified gold card data acquisition unit based on EMI power-supply filters Download PDFInfo
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- CN107482897A CN107482897A CN201710545771.2A CN201710545771A CN107482897A CN 107482897 A CN107482897 A CN 107482897A CN 201710545771 A CN201710545771 A CN 201710545771A CN 107482897 A CN107482897 A CN 107482897A
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- Prior art keywords
- supply
- data acquisition
- power
- acquisition unit
- filter
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention discloses a kind of modified gold card data acquisition unit based on EMI power-supply filters, including supply unit, described supply unit are provided with the first power-supply filter in output end；And breaker is installed after supply unit the first wave filter of installation.The present invention respectively adds the EMI power-supply filters of a standard in the output end of supply unit and the output end of transformer, the low-pass filter circuit that this wave filter is generally made up of current-limiting reactor and shunt capacitor, it is to allow frequency signal during equipment normal work to enter equipment that it, which is acted on, and has larger inhibition to the interference signal of high frequency.When power supply is disturbed and produces interference signal, wave filter effectively can filter out this part clutter, the power supply for ensureing supply data acquisition module and data transmission blocks is not carry interference signal, so that it is guaranteed that data is accurate, while effectively avoids adversely affecting flowmeter.
Description
Technical field
The present invention relates to combustion gas Data Collection to gather transmission field, specifically a kind of based on EMI power-supply filters
Modified gold card data acquisition unit.
Background technology
At present, during combustion gas is collected, the Data Collection harvester majority of use is gold card data acquisition unit, traditional skill
Supply unit used in gold card data acquisition unit is but traditional skill as electric supply installation using the civilian alternating currents of 220V in art
The anti-interference of this electric supply installation in art is only through setting ground path plate, and effect is very general；Other gold card data
The data acquisition of collector is influenceed by communication distance, and data acquisition unit can only be installed on the position close to flowmeter, so
Power supply can only also use nearby, be set when the power supply used while for other equipment such as boiler, ballast, large ac machines etc.
During available electricity, power supply is easy for shaking, and so as to which clutter is flowed into data acquisition unit, influences the collection of data.
The content of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, providing a kind of improvement based on EMI power-supply filters
Type gold card data acquisition unit.
Technical scheme：It is of the present invention solve the problems, such as used by technical scheme be：A kind of improvement based on EMI power-supply filters
Type gold card data acquisition unit, including supply unit, described supply unit are provided with the first power-supply filter in output end；And electricity
Source device installs breaker after installing the first wave filter, and the breaker is connected with lightning protection device again, and described lightning protection device connects
Connect and transformer is installed；And the output end of described transformer is provided with second source wave filter again；And described transformer peace
It is connected again with data acquisition module and data transmission blocks set on data acquisition unit after dress second source wave filter, and
Powered to both.
Preferably, in order to further increase filtering anti-jamming effectiveness, be also equipped with described transformer signal wire and
Magnet ring, and ground path plate is also equipped with described transformer.
Preferably, described supply unit is arranged to 220V supply units；220V civilian power supply can equally be used
Device.
Preferably, in order to realize that convenient connection, and increase distance connection, described data acquisition module use
RS485 or RS232 serial communication interfaces.
Preferably, described the first power-supply filter and second source wave filter is disposed as by current-limiting reactor and simultaneously
Join capacitor bank into EMI low pass electric source filter circuits.
Beneficial effect：The present invention compared with prior art, has advantages below：The present invention supply unit output end and
The output end of transformer respectively adds the EMI power-supply filters of a standard, and this wave filter is generally by current-limiting reactor and parallel connection
Capacitor bank into low-pass filter circuit, it is to allow frequency signal during equipment normal work to enter equipment that it, which is acted on, and to height
The interference signal of frequency has larger inhibition.When power supply is disturbed and produces interference signal, wave filter can be effective
This part clutter is filtered out, the power supply for ensureing supply data acquisition module and data transmission blocks is not carry interference signal
, so that it is guaranteed that data is accurate, while effectively avoid adversely affecting flowmeter.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, and the present embodiment is with technical solution of the present invention
Premised under implemented, it should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.
As shown in figure 1, a kind of modified gold card data acquisition unit based on EMI power-supply filters, including supply unit 1,
Described supply unit 1 is provided with the first power-supply filter 2 in output end；And installed after the first wave filter 2 of installation of supply unit 1
Breaker 3, the breaker 3 is connected with lightning protection device 4 again, and described lightning protection device 4 is connected and installed with transformer 5；It is and described
The output end of transformer 5 second source wave filter 6 is installed again；And after described transformer 5 installs second source wave filter 6
It is connected with data acquisition module 7 and data transmission blocks 8 set on data acquisition unit, and is powered to both again.
In order to further increase filtering anti-jamming effectiveness, signal wire and magnet ring, and institute are also equipped with described transformer 5
Ground path plate is also equipped with the transformer 5 stated.
Described supply unit 1 is arranged to 220V supply units；220V civilian supply unit can equally be used.
In order to realize convenient connection, and increase distance connection, described data acquisition module 7 using RS485 or
RS232 serial communication interfaces.
The first described power-supply filter 2 and second source wave filter 6 are disposed as by current-limiting reactor 9 and shunt capacitance
The EMI low pass electric source filter circuits that device 10 forms.
The present invention respectively adds the EMI power filters of a standard in the output end of supply unit and the output end of transformer
Device, the low-pass filter circuit that this wave filter is generally made up of current-limiting reactor and shunt capacitor, it is to allow equipment that it, which is acted on,
Frequency signal during normal work enters equipment, and has larger inhibition to the interference signal of high frequency.When power supply is disturbed
It is dynamic and when producing interference signal, wave filter effectively can filter out this part clutter, ensure supply data acquisition module and
The power supply of data transmission blocks is not carry interference signal, so that it is guaranteed that data is accurate, while is effectively avoided to flowmeter
Adversely affect.
Above-mentioned embodiment is a preferred embodiment of the present invention, is not the implementation for limiting the present invention
The equivalence changes made with right, all contents according to described in the present patent application scope of patent protection and modification,
It all should be included in the range of present patent application.
Claims (5)
- A kind of 1. modified gold card data acquisition unit based on EMI power-supply filters, it is characterised in that：Including supply unit (1), Described supply unit (1) is provided with the first power-supply filter (2) in output end；And supply unit (1) installs the first wave filter (2) breaker (3) is installed afterwards, the breaker (3) is connected with lightning protection device (4) again, and described lightning protection device (4) connection is installed There is transformer (5)；And the output end of described transformer (5) is provided with second source wave filter (6) again；And described transformer (5) second source wave filter (6) is installed to send with data acquisition module (7) and data set on data acquisition unit again afterwards Module (8) connects, and is powered to both.
- 2. a kind of modified gold card data acquisition unit based on EMI power-supply filters according to claim 1, its feature exist In：Signal wire and magnet ring are also equipped with described transformer (5), and ground path is also equipped with described transformer (5) Plate.
- 3. a kind of modified gold card data acquisition unit based on EMI power-supply filters according to claim 1, its feature exist In：Described supply unit (1) is arranged to 220V supply units.
- 4. a kind of modified gold card data acquisition unit based on EMI power-supply filters according to claim 1, its feature exist In：Described data acquisition module (7) uses RS485 or RS232 serial communication interfaces.
- 5. a kind of modified gold card data acquisition unit based on EMI power-supply filters according to claim 1, its feature exist In：Described the first power-supply filter (2) and second source wave filter (6) is disposed as by current-limiting reactor (9) and parallel connection electricity The EMI low pass electric source filter circuits of container (10) composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545771.2A CN107482897A (en) | 2017-07-06 | 2017-07-06 | A kind of modified gold card data acquisition unit based on EMI power-supply filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545771.2A CN107482897A (en) | 2017-07-06 | 2017-07-06 | A kind of modified gold card data acquisition unit based on EMI power-supply filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107482897A true CN107482897A (en) | 2017-12-15 |
Family
ID=60596553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710545771.2A Pending CN107482897A (en) | 2017-07-06 | 2017-07-06 | A kind of modified gold card data acquisition unit based on EMI power-supply filters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107482897A (en) |
-
2017
- 2017-07-06 CN CN201710545771.2A patent/CN107482897A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171215 |
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| WD01 | Invention patent application deemed withdrawn after publication |