CN106878214B - Signal modulation card - Google Patents
Signal modulation card Download PDFInfo
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- CN106878214B CN106878214B CN201611218256.5A CN201611218256A CN106878214B CN 106878214 B CN106878214 B CN 106878214B CN 201611218256 A CN201611218256 A CN 201611218256A CN 106878214 B CN106878214 B CN 106878214B
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- 238000002955 isolation Methods 0.000 claims abstract description 72
- 230000003321 amplification Effects 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 230000003750 conditioning effect Effects 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
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- 238000004886 process control Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
Abstract
The present invention provides a signal modulation card comprising: the device comprises an isolation power supply module, a power supply voltage conversion module, an isolation amplification module, a voltage signal output port, a full voltage current signal input port, a power supply port and a power supply input port; the power supply end is connected with the power supply input port and the isolation power supply module; the isolation amplification module comprises a first port, a second port and a third port, the first port is connected with the voltage signal output port, and the second port is connected with the full-voltage current signal input port; and the power supply voltage conversion module is connected with the third port. The signal modulation card provided by the embodiment of the invention can modulate signals of different types and sizes into uniform signals, is convenient for subsequent data acquisition and analysis, and can carry out full-isolation processing on the signals.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a signal modulation card.
Background
The core mechanism of signal conditioning is to convert the signal to be measured into a standard signal which can be recognized by the acquisition equipment through operations such as amplification, filtering and the like. The method is realized by changing the type of input signals and outputting standard signals by using internal circuits (such as filters, converters, amplifiers and the like), converting analog signals into digital signals for data acquisition, process control, calculation display payment or other purposes.
In the prior art, a general signal modulation card is basically not provided with isolation, or is not comprehensive in signal conditioning, and has a narrow signal input range. For example: some signal modulation cards in the series have isolation between the input signal and the output signal, the input signal is a-10V to 10V signal, and the output is also-10V to 10V.
The signal modulation card in the prior art has poor isolation effect and narrow signal input range, and when the range of the input signal does not belong to the specified range of the signal modulation card, the signal modulation card can not process the input signal, and the universality of the signal modulation card is poor.
Disclosure of Invention
The invention provides a signal modulation card, which aims to solve the problems of poor isolation effect and narrow specified range of input signals in the signal modulation process in the prior art.
In order to solve the above problems, the present invention discloses a signal modulation card comprising: the device comprises an isolation power supply module, a power supply voltage conversion module, an isolation amplification module, a voltage signal output port, a full voltage current signal input port, a power supply port and a power supply input port; the power supply end is connected with the power supply input port and the isolation power supply module; the isolation amplification module comprises a first port, a second port and a third port, the first port is connected with the voltage signal output port, and the second port is connected with the full-voltage current signal input port; and the power supply voltage conversion module is connected with the third port.
Preferably, the input voltage value of the input port of the power supply source ranges from 5V to 60V.
Preferably, the isolation power supply module isolates the received voltage to generate a power supply voltage signal, and sends the power supply voltage signal to the power supply voltage conversion module, wherein the amplitude of the power supply voltage signal is 15V.
Preferably, the power voltage conversion module receives a power voltage signal sent by the power voltage conversion module, and converts the power voltage signal into a first power voltage signal and a second power voltage signal, where the amplitude of the first power voltage signal is 15V, and the amplitude of the second power voltage signal is-15V.
Preferably, the amplitude range value of the receiving signal at the full voltage current signal input port is-1000V to + 1000V.
Preferably, the full-voltage current signal input port is provided with a first interface, a second interface, a third interface and a fourth interface; when the amplitude of a signal input by the peripheral equipment is-10V to +10V, the signal input by the peripheral equipment is output to the isolation amplification module through the first interface; when the amplitude of a signal input by the peripheral equipment is-100V to +100V or-1000V to +1000V, the signal input by the peripheral equipment is output to the isolation amplification module through a second interface; when the signal input by the peripheral equipment is a current signal, the third interface and the fourth interface output the signal input by the peripheral equipment to the isolation amplification module.
Preferably, the isolation amplification module receives a signal input from the full-voltage current signal input port, performs signal conversion and isolation conditioning on the received signal, generates a third signal, and outputs the third signal to the data acquisition device from the voltage signal output port, where an amplitude value of the third signal is in a range from-10V to + 10V.
Compared with the prior art, the invention has the following advantages:
the embodiment of the invention provides a signal modulation card, which comprises: the device comprises an isolation power supply module, a power supply voltage conversion module, an isolation amplification module, a voltage signal output port, a full voltage current signal input port, a power supply end and a power supply input port; the power supply end is connected with the power supply input port and the isolation power supply module; the isolation amplification module comprises a first port, a second port and a third port, the first port is connected with the voltage signal output port, and the second port is connected with the full-voltage current signal input port; and the power supply voltage conversion module is connected with the third port. Therefore, the signal modulation card provided by the embodiment of the invention can modulate signals of different types and sizes into uniform signals, is convenient for subsequent data acquisition and analysis, and can carry out full-isolation processing on the signals.
Drawings
Fig. 1 is a schematic structural diagram of a signal modulation card according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
Referring to fig. 1, a schematic structural diagram of a signal modulation card according to a first embodiment of the present invention is shown.
The signal modulation card provided by the embodiment of the invention comprises: the system comprises an isolation power supply module 101, a power supply voltage conversion module 102, an isolation amplification module 103, a voltage signal output port 104, a full-voltage current signal input port 105, a power supply input port 106 and a power supply end 107; the power supply end 107 is connected with the power supply input port 106 and the isolation power supply module 101; the isolation amplification module 103 includes a first port 1031, a second port 1032 and a third port 1033, the first port 1031 is connected to the voltage signal output port 104, and the second port 1032 is connected to the full-voltage current signal input port 105; the power voltage conversion module 102 is connected to the third port 1033.
The isolation power supply module has the functions of safety isolation, noise isolation (isolation of an analog circuit and a digital circuit and isolation of strong and weak signals) and elimination of a grounding loop. And the functions of short-circuit protection, overvoltage protection, undervoltage protection, overcurrent protection and the like are also realized.
The power supply voltage conversion module adopts an ADP5070 module, and the isolation amplification module adopts an AD215 module.
The power supply voltage is input from a power supply end of a power supply input port, the power supply voltage is subjected to electromagnetic isolation conversion consisting of an isolation power supply module MAX17690 and T1 to realize isolation of power supply voltage signals, a 15V power supply voltage signal is output, and then the power supply voltage signal is converted into two paths of power supply voltage signals of-15V and +15V respectively through a power supply voltage conversion module ADP5070 device, wherein the voltage is used as a power supply of a rear output part (namely an isolation amplification module).
An input signal is input from a full-voltage current signal input port, then signal conversion is carried out through an isolation operational amplifier module AD215, an output signal is isolated and conditioned into a signal of-10V to +10V and is output through a voltage signal output port, and the voltage signal output port is connected with data acquisition equipment, namely a standard signal can be acquired.
The embodiment of the invention provides a signal modulation card, which comprises: the device comprises an isolation power supply module, a power supply voltage conversion module, an isolation amplification module, a voltage signal output port, a full voltage current signal input port, a power supply end and a power supply input port; the power supply end is connected with the power supply input port and the isolation power supply module; the isolation amplification module comprises a first port, a second port and a third port, the first port is connected with the voltage signal output port, and the second port is connected with the full-voltage current signal input port; and the power supply voltage conversion module is connected with the third port. Therefore, the signal modulation card provided by the embodiment of the invention can modulate signals of different types and sizes into uniform signals, is convenient for subsequent data acquisition and analysis, and can carry out full-isolation processing on the signals.
Example two
Still referring to fig. 1, a schematic structural diagram of a signal modulation card according to a second embodiment of the present invention is shown.
The signal modulation card provided by the embodiment of the invention comprises: the system comprises an isolation power supply module 101, a power supply voltage conversion module 102, an isolation amplification module 103, a voltage signal output port 104, a full-voltage current signal input port 105, a power supply input port 106 and a power supply end 107; the power supply end 107 is connected with the power supply input port 106 and the isolation power supply module 101; the isolation amplification module 103 includes a first port 1031, a second port 1032 and a third port 1033, the first port 1031 is connected to the voltage signal output port 104, and the second port 1032 is connected to the full-voltage current signal input port 105; the power voltage conversion module 102 is connected to the third port 1033.
Preferably, the input voltage value of the input port of the power supply source ranges from 5V to 60V.
Specifically, when the signal modulation card modulates a signal, a power supply voltage is input from a power supply end of a power supply input port, the isolation power supply module isolates the received voltage to generate a power supply voltage signal, and the power supply voltage signal is sent to the power supply voltage conversion module, wherein the amplitude of the power supply voltage signal is 15V. And the power supply voltage conversion module receives the power supply voltage signal sent by the power supply voltage conversion module and converts the power supply voltage signal into a first power supply voltage signal and a second power supply voltage signal, wherein the amplitude of the first power supply voltage signal is 15V, and the amplitude of the second power supply voltage signal is-15V. This voltage serves as a power supply for the following output section (i.e., the isolated amplification block).
The input signal is input from a full-voltage current signal input port, wherein the full-voltage current signal input port inputs a first interface, a second interface, a third interface and a fourth interface, and when the amplitude of a signal input by the peripheral equipment is-10V to +10V, the signal input by the peripheral equipment is output to the isolation amplification module through the first interface; when the amplitude of a signal input by the peripheral equipment is-100V to +100V or-1000V to +1000V, the signal input by the peripheral equipment is output to the isolation amplification module through a second interface; when the signal input by the peripheral equipment is a current signal, the third interface and the fourth interface output the signal input by the peripheral equipment to the isolation amplification module.
The isolation amplification module receives a signal input by the full voltage current signal input port, performs signal conversion and isolation conditioning on the received signal to generate a third signal, and outputs the third signal to the data acquisition equipment from the voltage signal output port, wherein the amplitude value of the third signal is in a range from-10V to + 10V.
The embodiment of the invention provides a signal modulation card, which comprises: the device comprises an isolation power supply module, a power supply voltage conversion module, an isolation amplification module, a voltage signal output port, a full voltage current signal input port, a power supply end and a power supply input port; the power supply end is connected with the power supply input port and the isolation power supply module; the isolation amplification module comprises a first port, a second port and a third port, the first port is connected with the voltage signal output port, and the second port is connected with the full-voltage current signal input port; and the power supply voltage conversion module is connected with the third port. Therefore, the signal modulation card provided by the embodiment of the invention can modulate signals of different types and sizes into uniform signals, is convenient for subsequent data acquisition and analysis, and can carry out full-isolation processing on the signals.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The signal modulation card provided by the present invention is introduced in detail, and the principle and the implementation of the present invention are explained in the present document by applying specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. A signal modulation card, comprising: the device comprises an isolation power supply module, a power supply voltage conversion module, an isolation amplification module, a voltage signal output port, a full voltage current signal input port, a power supply port and a power supply input port;
the power supply port is connected with the power supply input port and the isolation power supply module; the isolation power supply module is connected with the power supply voltage conversion module; the isolation amplification module comprises a first port, a second port and a third port, the first port is connected with the voltage signal output port, and the second port is connected with the full-voltage current signal input port; the power supply voltage conversion module is connected with the third port;
the isolation power supply module isolates power supply voltage input by a power supply port of the power supply input port to generate a power supply voltage signal, the power supply voltage conversion module converts the power supply voltage signal into a first power supply voltage signal and a second power supply voltage signal, the first power supply voltage signal and the second power supply voltage signal are used as power supplies of the isolation amplification module, the isolation amplification module performs signal conversion on an input signal input by the full voltage current signal input port to obtain a standard signal, and the voltage signal output port is used for outputting the standard signal;
the full-voltage current signal input port is provided with a first interface, a second interface, a third interface and a fourth interface;
when the amplitude of a signal input by the peripheral equipment is-10V to +10V, the signal input by the peripheral equipment is output to the isolation amplification module through the first interface;
when the amplitude of a signal input by the peripheral equipment is-100V to +100V or-1000V to +1000V, the signal input by the peripheral equipment is output to the isolation amplification module through a second interface;
when the signal input by the peripheral equipment is a current signal, the third interface and the fourth interface output the signal input by the peripheral equipment to the isolation amplification module.
2. The signal conditioning card of claim 1 wherein the voltage input at the power supply input port ranges from 5V to 60V.
3. The signal conditioning card of claim 2 wherein the isolated power supply module isolates the received voltage to generate a supply voltage signal, and sends the supply voltage signal to the supply voltage conversion module, wherein the supply voltage signal has a magnitude of 15V.
4. The signal modulation card of claim 3 wherein the power supply voltage conversion module receives a power supply voltage signal from the isolated power supply module, and converts the power supply voltage signal into a first power supply voltage signal and a second power supply voltage signal, wherein the first power supply voltage signal has a magnitude of 15V and the second power supply voltage signal has a magnitude of-15V.
5. The signal conditioning card of claim 1 wherein said full voltage current signal input port receives signals having amplitude values in the range of-1000V to + 1000V.
6. The signal modulation card of claim 5, wherein the isolation amplification module receives the signal input from the full voltage-current signal input port, performs signal conversion and isolation conditioning on the received signal, generates a third signal, and outputs the third signal from the voltage signal output port to the data acquisition device, wherein the third signal has an amplitude ranging from-10V to + 10V.
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| CN201611218256.5A CN106878214B (en) | 2016-12-26 | 2016-12-26 | Signal modulation card |
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| CN201611218256.5A CN106878214B (en) | 2016-12-26 | 2016-12-26 | Signal modulation card |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014997Y (en) * | 2006-11-09 | 2008-01-30 | 天津理工大学 | Virtual instrument based excitation system testing device |
| CN201860313U (en) * | 2010-11-19 | 2011-06-08 | 陕西千山航空电子有限责任公司 | Signal isolation interface |
| CN202720267U (en) * | 2012-07-13 | 2013-02-06 | 湖北三江航天红峰控制有限公司 | A wide-range AD sampling device |
| CN103698600A (en) * | 2014-01-02 | 2014-04-02 | 北京四方继保自动化股份有限公司 | Frequency measuring system for universal voltage input power frequency signal |
-
2016
- 2016-12-26 CN CN201611218256.5A patent/CN106878214B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014997Y (en) * | 2006-11-09 | 2008-01-30 | 天津理工大学 | Virtual instrument based excitation system testing device |
| CN201860313U (en) * | 2010-11-19 | 2011-06-08 | 陕西千山航空电子有限责任公司 | Signal isolation interface |
| CN202720267U (en) * | 2012-07-13 | 2013-02-06 | 湖北三江航天红峰控制有限公司 | A wide-range AD sampling device |
| CN103698600A (en) * | 2014-01-02 | 2014-04-02 | 北京四方继保自动化股份有限公司 | Frequency measuring system for universal voltage input power frequency signal |
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Denomination of invention: A signal modulation card Effective date of registration: 20211012 Granted publication date: 20200605 Pledgee: Beijing Yizhuang International Financing Guarantee Co.,Ltd. Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2021990000950 |
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Denomination of invention: A Signal Modulation Card Effective date of registration: 20220923 Granted publication date: 20200605 Pledgee: Beijing Yizhuang International Financing Guarantee Co.,Ltd. Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2022990000667 |
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Address after: Building 24, 18th Courtyard, Kechuang 13th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee after: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Address before: Building 24, yard 18, Fengchuang science and Technology Park, Daxing Economic and Technological Development Zone, Beijing 100176 Patentee before: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Date of cancellation: 20230919 Granted publication date: 20200605 Pledgee: Beijing Yizhuang International Financing Guarantee Co.,Ltd. Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2022990000667 |
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Denomination of invention: A signal modulation card Effective date of registration: 20230919 Granted publication date: 20200605 Pledgee: Beijing Yizhuang International Financing Guarantee Co.,Ltd. Pledgor: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Registration number: Y2023990000460 |