CN201576065U - Multipurpose electric energy quality monitoring instrument - Google Patents
Multipurpose electric energy quality monitoring instrument Download PDFInfo
- Publication number
- CN201576065U CN201576065U CN2009202948056U CN200920294805U CN201576065U CN 201576065 U CN201576065 U CN 201576065U CN 2009202948056 U CN2009202948056 U CN 2009202948056U CN 200920294805 U CN200920294805 U CN 200920294805U CN 201576065 U CN201576065 U CN 201576065U
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Abstract
The utility model discloses a multipurpose electric energy quality monitoring instrument, including a sampling circuit (1), a first data-processing circuit (2), a microprocessor (3) and a plurality of interface circuits (4); the sampling circuit (1) is connected with the first data-processing circuit (2); the first data-processing circuit (2) is connected with the microprocessor (3); the microprocessor (3) is connected with the plurality of interface circuits (4). The monitoring instrument also includes a second data-processing circuit (5), an input end of the second data-processing circuit (5) is connected with the sampling circuit (1), and an output end of the second data-processing circuit (5) is connected with the microprocessor (3). The monitoring instrument is capable of improving measuring and analyzing precision of higher-order harmonics.
Description
Technical field
The utility model relates to a kind of electric energy quality monitoring device, specifically is a kind of multi-usage electric energy quality monitor.
Background technology
Existing multi-usage electric energy quality monitor comprises sample circuit, data processing circuit, microprocessor (MCU) and a plurality of interface circuit, and described sample circuit is connected with data processing circuit; Described data processing circuit is connected with microprocessor; Described microprocessor is connected with a plurality of interface circuits.There is following defective in the multi-usage electric energy quality monitor of said structure: though existing multi-usage electric energy quality monitor can analyze the parameter of higher hamonic wave simply, for the far distance controlled center provides data analysis, but because the harmonic wave in the electrical network has features such as diversity, randomness and polymorphism, thereby the precision of the higher hamonic wave Measurement and analysis of existing monitor is still lower.
The utility model content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, and a kind of multi-usage electric energy quality monitor that can improve higher hamonic wave Measurement and analysis precision is provided.
The technical solution of the utility model is, a kind of multi-usage electric energy quality monitor is provided, and comprises sample circuit, first data processing circuit, microprocessor and a plurality of interface circuit; Described sample circuit is connected with first data processing circuit; Described first data processing circuit is connected with microprocessor; Described microprocessor is connected with a plurality of interface circuits; It also comprises second data processing circuit, and the input end of described second data processing circuit is connected with sample circuit, and the output terminal of described second data processing circuit is connected with microprocessor.
After adopting above structure, the utility model compared with prior art has the following advantages:
The utility model multi-usage electric energy quality monitor has adopted two separate data processing circuits, i.e. first data processing circuit and second data processing circuit, respectively the image data of sample circuit is carried out the data analysis of different range, deliver to the far distance controlled center after by microprocessor these data being handled then and carry out final analysis.Owing to adopt two relatively independent data processing circuits, thereby, can analyze respectively, thereby improved the Measurement and analysis precision of the utility model multi-usage electric energy quality monitor greatly for dissimilar higher hamonic waves.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model multi-usage electric energy quality monitor.
Fig. 2 is the physical circuit block diagram of the utility model multi-usage electric energy quality monitor.
Shown in the figure 1, sample circuit, 2, first data processing circuit, 3, microprocessor, 4, a plurality of interface circuit, 5, second data processing circuit.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model multi-usage electric energy quality monitor, comprise sample circuit 1, first data processing circuit 2, microprocessor 3, a plurality of interface circuit 4 and power circuit, power circuit is connected with sample circuit 1, first data processing circuit 2, microprocessor 3, a plurality of interface circuit 4 respectively, for they provide power supply, power circuit is not shown in the drawings.In the present embodiment, sample circuit 1 comprises current transformer, current buffering amplifying circuit, voltage transformer (VT) and voltage buffer amplifier circuit, the input end of described current transformer is connected with electrical network, and the output terminal of described current transformer is connected with the input end of current buffering amplifying circuit; The input end of voltage transformer (VT) is connected with electrical network, and the output terminal of described voltage transformer (VT) is connected with the input end of voltage buffer amplifier circuit.The structure of first data processing circuit 2 is consistent with the structure of second data processing circuit 5, be specially: first data processing circuit comprises first A/D converter (analog to digital converter), first flash memory, a DSP (digital signal processing module), first random access memory and first Logic control module, and the output terminal of described first A/D converter is connected with the input end of a DSP; The output terminal of a described DSP is connected with microprocessor 3; Described second Logic control module is connected with first A/D converter, first flash memory, a DSP, first random access memory, microprocessor 3 respectively.Described microprocessor 3 is connected with a plurality of interface circuits 4, in the present embodiment, described a plurality of interface circuit comprises LCD display, infrared interface, storer, button input, remote output, 485 interfaces, 232 interfaces, MODEM interface, USB interface, parallel port interface, Ethernet interface, GPS interface and fieldbus, above-mentioned these all interfaces all are connected with microprocessor 3, are used for the input and the output of data.
Described sample circuit 1 is connected with first data processing circuit 2, and concrete structure is: the current buffering amplifying circuit in the sample circuit 1, voltage buffer amplifier circuit are connected with first A/D converter in first data processing circuit 2.
Described first data processing circuit 2 is connected with microprocessor 3, and concrete structure is: first random access memory in first data processing circuit 2, first Logic control module are connected with microprocessor 3.
It also comprises second data processing circuit 5, and the input end of described second data processing circuit 5 is connected with sample circuit 1, and the output terminal of described second data processing circuit 5 is connected with microprocessor 3.Concrete mechanism is: the current buffering amplifying circuit in the sample circuit 1, voltage buffer amplifier circuit are connected with second A/D converter in second data processing circuit 5; Second random access memory in second data processing circuit 5, second Logic control module are connected with microprocessor 3.
Described second data processing circuit comprises second A/D converter, second flash memory, the 2nd DSP, second random access memory and second Logic control module, the input end of described second A/D converter is connected with sample circuit 1, and the output terminal of described second A/D converter is connected with the input end of the 2nd DSP; The output terminal of described the 2nd DSP is connected with microprocessor 3; Described second Logic control module is connected with second A/D converter, second flash memory, the 2nd DSP, second random access memory, microprocessor 3 respectively.
Claims (2)
1. a multi-usage electric energy quality monitor comprises sample circuit (1), first data processing circuit (2), microprocessor (3) and a plurality of interface circuit (4); Described sample circuit (1) is connected with first data processing circuit (2); Described first data processing circuit (2) is connected with microprocessor (3); Described microprocessor (3) is connected with a plurality of interface circuits (4), it is characterized in that: it also comprises second data processing circuit (5), the input end of described second data processing circuit (5) is connected with sample circuit (1), and the output terminal of described second data processing circuit (5) is connected with microprocessor (3).
2. multi-usage electric energy quality monitor according to claim 1, it is characterized in that: described second data processing circuit (5) comprises second A/D converter, second flash memory, the 2nd DSP, second random access memory and second Logic control module, the input end of described second A/D converter is connected with sample circuit (1), and the output terminal of described second A/D converter is connected with the input end of the 2nd DSP; The output terminal of described the 2nd DSP is connected with microprocessor (3); Described second Logic control module is connected with second A/D converter, second flash memory, the 2nd DSP, second random access memory, microprocessor (3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202948056U CN201576065U (en) | 2009-12-16 | 2009-12-16 | Multipurpose electric energy quality monitoring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202948056U CN201576065U (en) | 2009-12-16 | 2009-12-16 | Multipurpose electric energy quality monitoring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576065U true CN201576065U (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202948056U Expired - Lifetime CN201576065U (en) | 2009-12-16 | 2009-12-16 | Multipurpose electric energy quality monitoring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN201576065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771534A (en) * | 2015-11-25 | 2017-05-31 | 湖南开磷雁峰塔涂料有限公司 | A kind of Power Quality Detection instrument on paint production plant |
-
2009
- 2009-12-16 CN CN2009202948056U patent/CN201576065U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771534A (en) * | 2015-11-25 | 2017-05-31 | 湖南开磷雁峰塔涂料有限公司 | A kind of Power Quality Detection instrument on paint production plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315191 Yinzhou Industrial Park, Zhejiang, Ningbo, Yinzhou District, Ningbo Patentee after: NINGBO SANXING MEDICAL ELECTRIC CO., LTD. Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo Sanxing Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
|
| CX01 | Expiry of patent term |