CN203894403U - Multifunctional electric energy meter calibrating and control device - Google Patents
Multifunctional electric energy meter calibrating and control device Download PDFInfo
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- CN203894403U CN203894403U CN201420314493.1U CN201420314493U CN203894403U CN 203894403 U CN203894403 U CN 203894403U CN 201420314493 U CN201420314493 U CN 201420314493U CN 203894403 U CN203894403 U CN 203894403U
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- electric energy
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- att7022b
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- energy meter
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Abstract
The utility model discloses a multifunctional electric energy meter calibrating and control device, and aims to meet the requirement of three-phase current and voltage measurement for a multifunctional electric energy meter. The multifunctional electric energy meter calibrating and control device is composed of a current sampling module, a voltage sampling module, a chip ATT7022B and a single-chip microcomputer AT89C51. The electric energy meter CT current sampling model collects current signals and sends the current signals to the chip ATT7022B. The PT voltage sampling model is used for collecting voltage signals and sending the voltage signals to the chip ATT7022B. The chip ATT7022B is used for detecting the received voltage and current signals, obtaining detection digital signals and sending the detection digital signals to the single-chip microcomputer AT89C51. The single-chip microcomputer AT89C51 controls the detecting process of the chip ATT7022B and sends the received detection digital signals to an LED. An LED module displays the received detection digital signals. The multifunctional electric energy meter calibrating and control device is very high in measurement precision and high in practicality.
Description
Technical field
The utility model is a kind of multifunctional electric energy meter calibrating control device, is specifically related to the calibration equipment of a kind of real-time inspection supply line's electric weight and fault.
Background technology
Multifunctional electric energy meter represents except needs meterings is meritorious, reactive power, also need to measure two or more electric energy, and can show, store and export the electric energy meter of data.In recent years, along with the increase of ammeter device requirement amount, occurred on the market the product of a lot of these multifunctional electric energy meters, but it still exists some shortcomings, as little in measurement range, precision is low and the shortcoming such as poor stability.Along with industrialized development, increasing to high-quality intelligent multifunctional electric energy meter demand, there is its clear superiority in the electric energy meter calibration control device taking single-chip microcomputer as core therefore.
Utility model content
The utility model has overcome the deficiency that prior art exists, and a kind of calibrating control device that is applicable to multifunctional electric energy meter is provided, and this calibrating control device antijamming capability is strong, and measuring accuracy is high.
In order to realize this calibrating control device, adopt following technical scheme:
Multifunctional electric energy meter calibrating control device, this calibrating control device is made up of CT current sample module, PT voltage sample module, chip ATT7022B and single chip computer AT 89C51; The signal output part of described CT current acquisition module and PT voltage acquisition module is connected with the signal input port of electric energy computation chip ATT7022B respectively, and the SPI port of three-phase electrical energy computation chip ATT7022B is connected with single chip computer AT 89C51; Described electric energy meter CT current sample module gathers current signal, sends to chip ATT7022B; Described PT voltage sample module, for voltage signal acquisition, sends to chip ATT7022B; Described chip ATT7022B detects the voltage and current signal receiving, the detection digital signal obtaining is sent to single chip computer AT 89C51, single chip computer AT 89C51 control chip ATT7022B testing process, and the detection digital signal receiving is sent to LED, LED module shows the detection digital signal receiving.
Beneficial effect: the utility model adopts chip ATT7022B to detect measurement verification, measuring accuracy and measurement range are effectively improved, and the design has used single chip computer AT 89C51 to control whole detection metering process, has effectively improved individual performance, has further expanded measurement range.
Brief description of the drawings
Fig. 1 is the fundamental diagram of the utility model calibrating control device;
Fig. 2 is chip ATT7022B pin schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1 and Figure 2, a kind of multifunctional electric energy meter calibrating control device, this calibrating control device is made up of CT current sample module, PT voltage sample module, chip ATT7022B and single chip computer AT 89C51.The signal output part of CT current acquisition module and PT voltage acquisition module is connected with the signal input port of electric energy computation chip ATT7022B respectively, and the SPI port of three-phase electrical energy computation chip ATT7022B is connected with single chip computer AT 89C51.Electric energy meter CT current sample module gathers current signal, sends to chip ATT7022B; PT voltage sample module, for voltage signal acquisition, sends to chip ATT7022B.Chip ATT7022B detects the voltage and current signal receiving, the detection digital signal obtaining is sent to single chip computer AT 89C51, single chip computer AT 89C51 control chip ATT7022B testing process, and the detection digital signal receiving is sent to LED, LED module shows the detection digital signal receiving.
Three-phase electrical energy computation chip ATT7022B is the core of this electric energy meter calibration control device, and what select is the special chip of the integrated company of torch power.This chip ATT7022B detects the voltage and current signal receiving, can measure each phase and close active power, reactive power, applied power, meritorious energy and the quadergy of phase, can also measure the parameters such as each phase current, voltage effective value, power factor, phase angle, frequency, fully meet the demand of three-phase multifunctional electrical energy meter simultaneously.Chip ATT7022B sends to single chip computer AT 89C51 by the detection digital signal obtaining by SPI interface, single chip computer AT 89C51 control chip ATT7022B testing process, and the detection digital signal receiving is sent to LED, LED module shows the detection digital signal receiving.
Claims (1)
1. a multifunctional electric energy meter calibrating control device, is characterized in that: this calibrating control device is made up of CT current sample module, PT voltage sample module, chip ATT7022B and single chip computer AT 89C51; The signal output part of described CT current acquisition module and PT voltage acquisition module is connected with the signal input port of electric energy computation chip ATT7022B respectively, and the SPI port of three-phase electrical energy computation chip ATT7022B is connected with single chip computer AT 89C51; Described electric energy meter CT current sample module gathers current signal, sends to chip ATT7022B; Described PT voltage sample module, for voltage signal acquisition, sends to chip ATT7022B; Described chip ATT7022B detects the voltage and current signal receiving, the detection digital signal obtaining is sent to single chip computer AT 89C51, single chip computer AT 89C51 control chip ATT7022B testing process, and the detection digital signal receiving is sent to LED, LED module shows the detection digital signal receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314493.1U CN203894403U (en) | 2014-06-13 | 2014-06-13 | Multifunctional electric energy meter calibrating and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314493.1U CN203894403U (en) | 2014-06-13 | 2014-06-13 | Multifunctional electric energy meter calibrating and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203894403U true CN203894403U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314493.1U Expired - Fee Related CN203894403U (en) | 2014-06-13 | 2014-06-13 | Multifunctional electric energy meter calibrating and control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203894403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007411A (en) * | 2014-06-13 | 2014-08-27 | 遵义长征电器开关设备有限责任公司 | Detection and control device for multi-function watt-hour meter |
-
2014
- 2014-06-13 CN CN201420314493.1U patent/CN203894403U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007411A (en) * | 2014-06-13 | 2014-08-27 | 遵义长征电器开关设备有限责任公司 | Detection and control device for multi-function watt-hour meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 563000 Waigaoqiao Industrial Park, Huichuan District, Guizhou, Zunyi (No. 199, Qinhuangdao Road) Patentee after: Zunyi Changzheng electric power Polytron Technologies Inc Address before: 563000 Huichuan District, Guizhou province high Lane Road, No. 79, No. Patentee before: Zunyi Changzheng Electrical Switch Devices Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20190613 |