CN201975788U - Electric power measurement and control module - Google Patents
Electric power measurement and control module Download PDFInfo
- Publication number
- CN201975788U CN201975788U CN2010206918207U CN201020691820U CN201975788U CN 201975788 U CN201975788 U CN 201975788U CN 2010206918207 U CN2010206918207 U CN 2010206918207U CN 201020691820 U CN201020691820 U CN 201020691820U CN 201975788 U CN201975788 U CN 201975788U
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- electric energy
- chip microcomputer
- power
- phase multifunctional
- module
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Abstract
The utility model discloses an electric power measurement and control module which comprises a singlechip, an ADE77 three-phase multifunctional electric energy metering integrated circuit (IC) and an AC-to-DC power module, wherein the current path input end of the ADE77 three-phase multifunctional electric energy metering integrated circuit is connected with the secondary-side output end of a current mutual inductor, the voltage path input end of the ADE77 three-phase multifunctional electric energy metering integrated circuit is connected with a partial pressure resistor unit, and the serial communication interface of the ADE77 three-phase multifunctional electric energy metering integrated circuit is in signal connection with the singlechip by a photoelectric isolating module; and the power output end of the AC-to-DC power module is connected with the power supply end of the ADE77 three-phase multifunctional electric energy metering IC. The electric power measurement and control module has the beneficial effects of low cost, high speed and high reliability and is convenient to install.
Description
Technical field
The utility model relates to a kind of electric power observation and control technical field that belongs to, and specifically relates to a kind of online detection and control of power line, is widely used in monitoring and the control and the managing power consumption system of low-voltage distributing line.
Background technology
At present, the reliability of low-voltage distributing line and security relationship also are related to resident's daily life to the every aspect of industrial and agricultural production.Energy-conserving and environment-protective have simultaneously also become the inevitable requirement of social development.This just needs us that power circuit is monitored timely and effectively and controlled.But general device is difficult to accomplish have simultaneously and detects and controlled function at present, and cost is low, installation is difficult, the not high shortcoming of precision but also exist.
Summary of the invention
For solving above technical deficiency, the utility model provides that a kind of cost is low, easy for installation, the high union observing and controlling of precision is in the electric power observation and control module of one.
The utility model is realized by following measure:
A kind of electric power observation and control module of the present utility model is characterized in that, comprising:
Single-chip microcomputer;
ADE7758 three-phase multifunctional electric energy metrical IC, its current channel input is connected with current transformer
The secondary side output, its voltage channel input is connected with the divider resistance unit, its serial communication interface is connected with the single-chip microcomputer signal by photoelectric isolation module; With
AC-DC power module, its power output end connect the feeder ear of ADE7758 three-phase multifunctional electric energy metrical IC.
In order to communicate by letter conveniently, above-mentioned single-chip microcomputer signal is connected with 485 communication interface chips.
The power output end of above-mentioned AC-DC power module is connected with the input of insulating power supply, and the output of described insulating power supply connects the feeder ear of single-chip microcomputer and 485 communication interface chips, makes power supply stable more, safe, reliable.
In order to be more suitable for the technical program, above-mentioned single-chip microcomputer is the ATMEGA8 single-chip microcomputer.
The beneficial effects of the utility model are: 1. adopt ADE7758 three-phase multifunctional electric energy metrical IC, accuracy of detection height, function are more, have guaranteed the reliability of observing and controlling.2. adopt the photoelectric isolation technology of insulating power supply technology and signal, both guaranteed the safety of supply line, also guaranteed the safety of supervisory control system.3. use single chip computer AT MEGA8, cost is low, speed is fast, reliability is high.4. adopt 485 bus mode communications, cost is low, technology maturation, easy for installation.
Description of drawings
Fig. 1 is a workflow block diagram of the present utility model.
Embodiment
Be described further below in conjunction with embodiment and accompanying drawing:
As shown in Figure 1, a kind of electric power observation and control module of the present utility model comprises single-chip microcomputer, ADE7758
Three-phase multifunctional electric energy metrical IC and AC-DC power module.
ADE7758 three-phase multifunctional electric energy metrical IC has following characteristics: the precision height; Agreements such as compatible 3 phase 3 lines and 3 phases, 4 lines; Support the measurement of meritorious, idle, voltage effective value, current effective value and sample value etc.; Support various calibration functions; Support the SPI serial communication interface; Use single 5V power supply, low in energy consumption.ADE7758 three-phase multifunctional electric energy metrical IC has three electric current input channels and three voltage input channels, and their ranges all are+0.5V, and the electric current that will measure and voltage are respectively AC5A and AC220V, so will increase match circuit.Particularly, the current channel input of ADE7758 three-phase multifunctional electric energy metrical IC is connected with the secondary side output of current transformer, converts 5A to 5mA.The voltage channel input of ADE7758 three-phase multifunctional electric energy metrical IC is connected with the divider resistance unit, inserts ADE7758 after using two electric resistance partial pressures.The serial communication interface of ADE7758 three-phase multifunctional electric energy metrical IC is connected with the single-chip microcomputer signal by photoelectric isolation module.
Single-chip microcomputer adopts the ATMEGA8 single-chip microcomputer, and single chip computer AT MEGA8 is a single-chip microcomputer commonly used in the small-scale application.It the is built-in flash program storage of 8k byte, 512 byte EEPROM and 1k byte SRAM, and integrated timer, ADC, USART and SPI etc. support online programming.
The single-chip microcomputer signal is connected with 485 communication interface chips, and 485 communication interface chips become the differential signal of RS485 standard with the 5V transmission conversion of signals of ATMEGA8 single-chip microcomputer, and the received signal of RS485 are converted to the 5V level of ATMEGA8 single-chip microcomputer.
The power output end of AC-DC power module is connected with the input of insulating power supply, and the output of insulating power supply connects the feeder ear of single-chip microcomputer and 485 communication interface chips.The power output end of AC-DC power module connects the feeder ear of ADE7758 three-phase multifunctional electric energy metrical IC.More than 200 voltages that lie prostrate are become DC5V voltage offer ADE7758 three-phase multifunctional electric energy metrical IC use.And insulating power supply partly provides the DC5V voltage of an isolation for uses such as ATMEGA8 three-phase multifunctional electric energy metrical IC and 485 communication interface chips.
The foregoing description is described to be in order to specify this patent; though describe by specific term in the literary composition; but can not limit the protection range of this patent with this; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (4)
1. an electric power observation and control module is characterized in that, comprising:
Single-chip microcomputer;
ADE7758 three-phase multifunctional electric energy metrical IC, its current channel input is connected with the secondary side output of current transformer, and its voltage channel input is connected with the divider resistance unit, and its serial communication interface is connected with the single-chip microcomputer signal by photoelectric isolation module; With
AC-DC power module, its power output end connect the feeder ear of ADE7758 three-phase multifunctional electric energy metrical IC.
2. according to the described electric power observation and control module of claim 1, it is characterized in that: described single-chip microcomputer signal is connected with 485 communication interface chips.
3. according to claim 1 or 2 described electric power observation and control modules, it is characterized in that: the power output end of described AC-DC power module is connected with the input of insulating power supply, and the output of described insulating power supply connects the feeder ear of single-chip microcomputer and 485 communication interface chips.
4. according to the described electric power observation and control module of claim 1, it is characterized in that: described single-chip microcomputer is the ATMEGA8 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206918207U CN201975788U (en) | 2010-12-31 | 2010-12-31 | Electric power measurement and control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206918207U CN201975788U (en) | 2010-12-31 | 2010-12-31 | Electric power measurement and control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975788U true CN201975788U (en) | 2011-09-14 |
Family
ID=44580886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206918207U Expired - Fee Related CN201975788U (en) | 2010-12-31 | 2010-12-31 | Electric power measurement and control module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975788U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436734A (en) * | 2011-10-21 | 2012-05-02 | 南京苏商新能源科技有限公司 | Intelligent energy-saving monitoring management data collecting concentrator and collecting method thereof |
| CN103630778A (en) * | 2013-11-22 | 2014-03-12 | 中国电子科技集团公司第三十八研究所 | Module for quickly collecting three-phase electrical parameters |
| CN103869188A (en) * | 2014-03-11 | 2014-06-18 | 中国电子科技集团公司第三十八研究所 | Single-phase electrical parameter rapid collection module |
-
2010
- 2010-12-31 CN CN2010206918207U patent/CN201975788U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436734A (en) * | 2011-10-21 | 2012-05-02 | 南京苏商新能源科技有限公司 | Intelligent energy-saving monitoring management data collecting concentrator and collecting method thereof |
| CN102436734B (en) * | 2011-10-21 | 2013-04-10 | 南京苏商新能源科技有限公司 | Intelligent energy-saving monitoring management data collecting concentrator and collecting method thereof |
| CN103630778A (en) * | 2013-11-22 | 2014-03-12 | 中国电子科技集团公司第三十八研究所 | Module for quickly collecting three-phase electrical parameters |
| CN103630778B (en) * | 2013-11-22 | 2016-01-20 | 中国电子科技集团公司第三十八研究所 | Three phase electrical parameters Quick Acquisition module |
| CN103869188A (en) * | 2014-03-11 | 2014-06-18 | 中国电子科技集团公司第三十八研究所 | Single-phase electrical parameter rapid collection module |
| CN103869188B (en) * | 2014-03-11 | 2016-03-02 | 中国电子科技集团公司第三十八研究所 | Single-phase electricity parameter Quick Acquisition module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20111231 |