CN104007411A - Detection and control device for multi-function watt-hour meter - Google Patents
Detection and control device for multi-function watt-hour meter Download PDFInfo
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- CN104007411A CN104007411A CN201410261834.8A CN201410261834A CN104007411A CN 104007411 A CN104007411 A CN 104007411A CN 201410261834 A CN201410261834 A CN 201410261834A CN 104007411 A CN104007411 A CN 104007411A
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- att7022b
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Abstract
The invention discloses a detection and control device for a multi-function watt-hour meter. The multi-function watt-hour meter aims to meet the requirement for measurement of three-phase current and three-phase voltage. The detection and control device is composed of a current sampling module, a voltage sampling module, a chip ATT7022B and a single-chip microcomputer AT89C51. The CT current sampling module of the watt-hour meter collects current signals and sends the current signals to the chip ATT7022B. The PT voltage sampling module collects voltage signals and sends the voltage signals to the chip ATT7022B. The chip ATT7022B detects the received voltage signals and the current signals to obtain digital detection signals and sends the digital detection signals to the single-chip microcomputer AT89C51. The single-chip microcomputer AT89C51 controls the detection process of the chip ATT7022B and sends the received digital detection signals to an LED. The LED displays the received digital detection signals. The detection and control device for the multi-function watt-hour meter is extremely high in measurement accuracy and practicality.
Description
Technical field
The present invention 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, yet 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 that the single-chip microcomputer of therefore take is core.
Summary of the invention
The present invention 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, adopted following technical scheme:
Many merits electric energy meter calibration control device, this calibrating control device is comprised 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 demonstration receives to obtain and detects digital signal.
Beneficial effect: the present invention adopts chip ATT7022B to detect measurement verification, measuring accuracy and measurement range have effectively been 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.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram that the present invention examines and determine control device;
Fig. 2 is chip ATT7022B pin schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1 and Figure 2, a kind of multifunctional electric energy meter calibrating control device, this calibrating control device is comprised 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 demonstration receives to obtain and detects digital signal.
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, active power, reactive power, applied power, meritorious energy and the quadergy that can measure each phase and close 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 demonstration receives to obtain and detects digital signal.
Claims (1)
1. the electric energy meter calibration of merit a more than control device, is characterized in that: this calibrating control device is comprised 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 demonstration receives to obtain and detects digital signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261834.8A CN104007411A (en) | 2014-06-13 | 2014-06-13 | Detection and control device for multi-function watt-hour meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261834.8A CN104007411A (en) | 2014-06-13 | 2014-06-13 | Detection and control device for multi-function watt-hour meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104007411A true CN104007411A (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410261834.8A Pending CN104007411A (en) | 2014-06-13 | 2014-06-13 | Detection and control device for multi-function watt-hour meter |
Country Status (1)
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| CN (1) | CN104007411A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085786A1 (en) * | 2001-01-29 | 2004-05-06 | De Vries Jacob | Compensation circuit for the phase shift in electric meters for direct connection |
| US20040090220A1 (en) * | 2001-02-07 | 2004-05-13 | De Vries Jacob | Measuring circuit arrangement for electricity meters for direct connection |
| CN201387448Y (en) * | 2009-02-25 | 2010-01-20 | 青岛乾程电子科技有限公司 | Multi-functional electric energy meter with high-reliability data storage function |
| CN201926707U (en) * | 2010-12-20 | 2011-08-10 | 北京电研华源电力技术有限公司 | Three-phase digital ammeter and automatic ammeter reading system |
| CN202631727U (en) * | 2012-06-28 | 2012-12-26 | 珠海派诺科技股份有限公司 | Onsite detector of electric energy metering device |
| CN202649305U (en) * | 2012-06-28 | 2013-01-02 | 珠海派诺科技股份有限公司 | High-precision three-phase electric energy meter |
| CN103630740A (en) * | 2012-08-27 | 2014-03-12 | 成都众山科技有限公司 | Three-phase electric energy metering system |
| CN203894403U (en) * | 2014-06-13 | 2014-10-22 | 遵义长征电器开关设备有限责任公司 | Multifunctional electric energy meter calibrating and control device |
-
2014
- 2014-06-13 CN CN201410261834.8A patent/CN104007411A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085786A1 (en) * | 2001-01-29 | 2004-05-06 | De Vries Jacob | Compensation circuit for the phase shift in electric meters for direct connection |
| US20040090220A1 (en) * | 2001-02-07 | 2004-05-13 | De Vries Jacob | Measuring circuit arrangement for electricity meters for direct connection |
| CN201387448Y (en) * | 2009-02-25 | 2010-01-20 | 青岛乾程电子科技有限公司 | Multi-functional electric energy meter with high-reliability data storage function |
| CN201926707U (en) * | 2010-12-20 | 2011-08-10 | 北京电研华源电力技术有限公司 | Three-phase digital ammeter and automatic ammeter reading system |
| CN202631727U (en) * | 2012-06-28 | 2012-12-26 | 珠海派诺科技股份有限公司 | Onsite detector of electric energy metering device |
| CN202649305U (en) * | 2012-06-28 | 2013-01-02 | 珠海派诺科技股份有限公司 | High-precision three-phase electric energy meter |
| CN103630740A (en) * | 2012-08-27 | 2014-03-12 | 成都众山科技有限公司 | Three-phase electric energy metering system |
| CN203894403U (en) * | 2014-06-13 | 2014-10-22 | 遵义长征电器开关设备有限责任公司 | Multifunctional electric energy meter calibrating and control device |
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Application publication date: 20140827 |
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| RJ01 | Rejection of invention patent application after publication |