CN204649950U - A kind of voltage monitoring instrument calibrating installation - Google Patents
A kind of voltage monitoring instrument calibrating installation Download PDFInfo
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- CN204649950U CN204649950U CN201520229642.9U CN201520229642U CN204649950U CN 204649950 U CN204649950 U CN 204649950U CN 201520229642 U CN201520229642 U CN 201520229642U CN 204649950 U CN204649950 U CN 204649950U
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- voltage monitoring
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Abstract
A kind of voltage monitoring instrument calibrating installation, it is characterized in that: comprise main control chip, industrial computer, by voltage control unit, voltage monitoring unit, the load module that transfinites, Puled input module, the communication unit of described main control chip connection control, by the input-output unit of described industrial computer connection control, and it is the power module that described main control chip and described industrial computer are powered; The utility model adopts ARM chip and programmable logic array FPGA as the main control chip of standard source, adopt high precision D/A modular converter and Direct Digital frequency DDS synthetic waveform technology, realize the accurate control that standard source program-controlled voltage exports, accurate A/D sampling can be carried out to the voltage exported simultaneously, real-time monitoring output voltage source state, the voltage of output is made to have precision high, good stability, fineness adjustment advantages of higher.
Description
Technical field
The utility model relates to a kind of power equipment, particularly relates to a kind of voltage monitoring instrument calibrating installation.
Technical background
Existing manufacturer have developed voltage monitoring instrument calibrating installation in the market, voltage monitoring instrument is not produced due to multi-vendor greatly just production standard voltage source, thus understand unilateral to voltage monitoring instrument calibrating installation function, mainly there is following drawback: 1, calibrating installation does not support frequency influence and harmonic effects test; 2, calibrating installation automaticity is lower, and the calibrating time is longer, and efficiency is lower; 3, calibrating installation is comparatively single with voltage monitoring instrument interface, main these two kinds of interfaces of use RS232 and RS485; 4, calibrating mode can only be the one during the calibrating of calibrating installation body or host computer are examined and determine, and cannot possess two kinds of calibrating modes simultaneously.
Utility model content
The purpose of this utility model is the deficiency for above-mentioned technology, and provide a kind of advanced in performance, high efficiency voltage monitoring instrument calibrating installation, the utility model adopts following technical scheme.
A kind of voltage monitoring instrument calibrating installation, it is characterized in that: comprise main control chip, industrial computer, by voltage control unit, voltage monitoring unit, the load module that transfinites, Puled input module, the communication unit of described main control chip connection control, by the input-output unit of described industrial computer connection control, and be the power module that described main control chip and described industrial computer are powered, wherein: described main control chip comprises ARM chip and programmable logic array FPGA; Described voltage control unit comprises D/A modular converter, waveform generating module and power amplifier module; Described voltage monitoring unit comprises A/D modular converter and voltage sample module; Described communication unit comprises serial server and switch; Described input-output unit comprises Ethernet interface, USB interface, keyboard, LCDs, mouse and serial line interface; Described serial line interface comprise in RS232 interface, RS485 interface one or more; Described waveform generating module adopts Direct Digital Synthesizer; Described power amplifier module is connected with described waveform generating module, and described waveform generating module is connected with described D/A modular converter, and described D/A modular converter is connected with described main control chip; Described voltage adopts module to be connected with described A/D modular converter, and described A/D modular converter is connected with described main control chip; Described serial server connects described main control chip and described switch, and described switch connects described Ethernet interface.
Compare with existing voltage monitoring instrument, the utility model tool has the following advantages: 1, the utility model adopts ARM chip and programmable logic array FPGA as the main control chip of standard source, adopt high precision D/A modular converter and Direct Digital frequency DDS synthetic waveform technology, realize the accurate control that standard source program-controlled voltage exports, accurate A/D sampling can be carried out to the voltage exported simultaneously, real-time monitoring output voltage source state, the voltage of output is made to have precision high, good stability, fineness adjustment advantages of higher; Whether voltage transfinites pulse hardware signal input module that 2, the utility model is built-in, the voltage of real-time judge voltage monitoring instrument can transfinite, improve the response speed judged; 3, the utility model also has Puled input module, is suitable for the frequency of 1 ~ 4Hz, by comparison, can carry out clocking error verification; 4, the utility model is built-in industrial computer and LCDs, can complete interface display, the realization of human-machine operation interactive communication agreement; 5, the built-in serial server of the utility model and switch, can be used to and upper machine communication, can realize calibrating data and directly move to host computer from industrial computer, and host computer also can directly export in control criterion source.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of voltage monitoring instrument calibrating installation, comprise main control chip 1, industrial computer 2, by voltage control unit 3, the voltage monitoring unit 4 of described main control chip 1 connection control, the load module 5 that transfinites, Puled input module 6, communication unit 7, by the input-output unit of described industrial computer 2 connection control, and be the power module 8 that described main control chip 1 and described industrial computer 2 are powered, wherein: described main control chip 1 comprises ARM chip and programmable logic array FPGA; Described voltage control unit comprises D/A modular converter 31, waveform generating module 32 and power amplifier module 33; Described voltage monitoring unit 4 comprises A/D modular converter 41 and voltage sample module 42; Described communication unit 7 comprises serial server 71 and switch 72; Described input-output unit comprises Ethernet interface 91, USB interface 92, keyboard 93, LCDs 94, mouse 95 and serial line interface 96; Described serial line interface 96 comprise in RS232 interface, RS485 interface one or more; Described waveform generating module 32 adopts Direct Digital Synthesizer; Described power amplifier module 33 is connected with described waveform generating module 32, and described waveform generating module 32 is connected with described D/A modular converter 31, and described D/A modular converter 31 is connected with described main control chip 1; Described voltage adopts module 42 to be connected with described A/D modular converter 41, and described A/D modular converter 41 is connected with described main control chip 1; Described serial server 71 connects described main control chip 1 and described switch 72, and described switch 72 connects described Ethernet interface 91.
In this embodiment, the utility model adopts ARM chip and programmable logic array FPGA as the main control chip of standard source, adopt high precision D/A modular converter and Direct Digital frequency DDS synthetic waveform technology, realize the accurate control that standard source program-controlled voltage exports, can carry out accurate A/D sampling to the voltage exported, monitoring output voltage source state, makes the voltage of output have precision high in real time simultaneously, good stability, fineness adjustment advantages of higher; Whether voltage transfinites pulse hardware signal input module that the utility model is built-in, the voltage of real-time judge voltage monitoring instrument can transfinite, improve the response speed judged; The utility model also has Puled input module, is suitable for the frequency of 1 ~ 4Hz, by comparison, can carry out clocking error verification; The utility model is built-in industrial computer and LCDs, can complete interface display, the realization of human-machine operation interactive communication agreement; The built-in serial server of the utility model and switch, can be used to and upper machine communication, can realize calibrating data and directly move to host computer from industrial computer, and host computer also can directly export in control criterion source.
Above a kind of voltage monitoring instrument calibrating installation that the utility model embodiment provides is described in detail, for one of ordinary skill in the art, according to the thinking of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. a voltage monitoring instrument calibrating installation, it is characterized in that: comprise main control chip, industrial computer, by voltage control unit, voltage monitoring unit, the load module that transfinites, Puled input module, the communication unit of described main control chip connection control, by the input-output unit of described industrial computer connection control, and be the power module that described main control chip and described industrial computer are powered, wherein:
Described main control chip comprises ARM chip and programmable logic array FPGA;
Described voltage control unit comprises D/A modular converter, waveform generating module and power amplifier module;
Described voltage monitoring unit comprises A/D modular converter and voltage sample module;
Described communication unit comprises serial server and switch;
Described input-output unit comprises Ethernet interface, USB interface, keyboard, LCDs, mouse and serial line interface.
2. a kind of voltage monitoring instrument calibrating installation according to claim 1, is characterized in that: described serial line interface comprise in RS232 interface, RS485 interface one or more.
3. a kind of voltage monitoring instrument calibrating installation according to claim 1, is characterized in that: described waveform generating module adopts Direct Digital Synthesizer.
4. a kind of voltage monitoring instrument calibrating installation according to claim 1, it is characterized in that: described power amplifier module is connected with described waveform generating module, described waveform generating module is connected with described D/A modular converter, and described D/A modular converter is connected with described main control chip.
5. a kind of voltage monitoring instrument calibrating installation according to claim 1, is characterized in that: described voltage adopts module to be connected with described A/D modular converter, and described A/D modular converter is connected with described main control chip.
6. a kind of voltage monitoring instrument calibrating installation according to claim 1, is characterized in that: described serial server connects described main control chip and described switch, and described switch connects described Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229642.9U CN204649950U (en) | 2015-04-16 | 2015-04-16 | A kind of voltage monitoring instrument calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229642.9U CN204649950U (en) | 2015-04-16 | 2015-04-16 | A kind of voltage monitoring instrument calibrating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204649950U true CN204649950U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520229642.9U Expired - Fee Related CN204649950U (en) | 2015-04-16 | 2015-04-16 | A kind of voltage monitoring instrument calibrating installation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676159A (en) * | 2016-01-11 | 2016-06-15 | 南京易司拓电力科技股份有限公司 | Serial server-based automatic testing system of voltage monitor |
-
2015
- 2015-04-16 CN CN201520229642.9U patent/CN204649950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676159A (en) * | 2016-01-11 | 2016-06-15 | 南京易司拓电力科技股份有限公司 | Serial server-based automatic testing system of voltage monitor |
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| Date | Code | Title | Description |
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| 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: 20150916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |