CN201611357U - Intelligent network electric power meter of an outlaid additional function module - Google Patents
Intelligent network electric power meter of an outlaid additional function module Download PDFInfo
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- CN201611357U CN201611357U CN2010201044930U CN201020104493U CN201611357U CN 201611357 U CN201611357 U CN 201611357U CN 2010201044930 U CN2010201044930 U CN 2010201044930U CN 201020104493 U CN201020104493 U CN 201020104493U CN 201611357 U CN201611357 U CN 201611357U
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Abstract
The utility model discloses an intelligent network electric power meter of an outlaid additional function module, comprising a basic main body capable of metering and displaying the electric parameters and satisfying the basic requirement of the user under most circumstances; six normalized additional modules according to functions: an 2DI-2RO module, a 6DI module, an 2AP module, an electrical degree pulse output module, an Modbus module and a Profibus-DP communication module. The modules are selected according to the concrete requirement of the user. The additional modules and the basic main body are fixed using a contact pin and a perforation bolt. The intelligent network electric power meter is convenient for production and user requirement and use.
Description
Technical field:
The utility model relates to power measuring instrument instrument field, particularly a kind of intelligent network electric instrument that the standardized module of multiple external additional function can be provided.
Background technology:
Power measuring instrument instrument field diverse network electric instrument model is many at present, various functions are also many, various users and in the field of using different the time have certain puzzlement during in type selecting, function expansion and upgrading and with different electrical equipment producer device configuration; Also to satisfy various user's requests for manufacturing producer when the design planning product, make things convenient for production, assembling and product up-gradation, also can exert an influence properties of product and follow-up application.
In addition, along with the development of Power Electronic Technique, all select for use powerful processors to support various functions and a large amount of calculating in design, the complexity that hardware circuit is all done causes the electric instrument structure often bulky, and also can there be some defectives in product maintenance and upgrading.And big multi-user need structure simplify, flexible for installation, measure accurately, multiple functional select, cheap network electric power instrument.
So need a kind of intelligent network electric instrument that multiple external additional function modules can be provided, solve different user demands, make things convenient for manufacturing firm's design planning and production simultaneously.
The utility model content:
The network electric power instrument that the technical problems to be solved in the utility model provides and a kind ofly measures accurately, structure flexibility and reliability, various function can select the additional standard module to expand.
The concrete technical scheme that solves the problems of the technologies described above is as follows:
This intelligent network electric instrument, form by meter body with external additional function modules, meter body be responsible for measurement, demonstration, data processing and with external additional function modules communication, also can when dispatching from the factory, be set to basic model, timesharing electric degree type, electric power quality type, full function according to user's needs; Described meter body comprises that electric current and voltage load module, analog signal processing circuit, processor unit, demonstration and key-press module, clock circuit, memory circuit, IO input and output extend out interface module, SCI bus expansion interface module, spi bus and extend out interface module and switch power module; Described electric current and voltage load module connects with analog signal processing circuit; Described processor unit connects analog signal processing circuit, demonstration and key-press module, clock circuit, memory circuit, IO input and output respectively and extends out interface module, SCI bus expansion interface module, spi bus and extend out interface module; Each module of described switch power module and all the other connects; It is characterized in that described external additional function modules comprises the input of 2 way switch amounts and 2 road relay output modules, 6 way switch amount load modules, 2 road analog output modules, Profibus-DP communication module, Modbus communication module and electric degree pulse output module; Described IO input and output extend out interface module and mainly external additional function modules are selected control, and SCI bus expansion interface module extends out interface module with spi bus and communicates by letter with CPU in the external additional function modules.
In the such scheme, the input of described 2 way switch amounts and 2 road relay output modules, 6 way switch amount load modules, 2 road analog output modules and Profibus-DP communication module are built-in processing module, can and carry out independently incident and fault handling with the processor unit communication of meter body.
Because this electric instrument adopts pure industrial modular design, additional function energy independent assortment reduces customer using cost.All additional functions can both the close friend be presented on the giant-screen LCD interface simultaneously, and the button of hommization is provided with handled easily.And convenient produce debugging, arrange the stock, reduce the production cycle and reduce cost according to different user demands.
In addition.This instrument finally can realize comprehensive three phase electrical, energy accumulative total, harmonic measure, digital I/O and network communication function, and more strengthened the four-quadrant electric energy metrical, charge at times (TOU), automatic data logging, requirement statistics, off-limit alarm able to programme, sequence of events recording (SOE), electric degree pulse output, analog quantity output is also supported function such as multi-protocols duplex.
Description of drawings:
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is a utility model intelligent multifunctional electrical network instrument circuit theory synoptic diagram.
Fig. 2 is that utility model intelligent multifunctional electrical network instrument base main body shows and button figure.
Fig. 3 is utility model intelligent multifunctional electrical network instrument base main body input interface and extends out function draw-in groove structural representation.
Fig. 4 (a)～Fig. 4 (d) is the interface definition figure of the external function expansion card groove of utility model intelligent multifunctional electrical network instrument PX1～PX4.
Fig. 5 (a)～Fig. 5 (f) is the external structure synoptic diagram of 6 external standard feature modules in the utility model intelligent multifunctional electrical network instrument.
Embodiment:
In order to understand the technological means of understanding above-mentioned intelligent multifunctional electrical network instrument more, design planning instructs thinking, advances one below in conjunction with concrete block diagram and diagram and mends the utility model and the relation between each additional function modules and the meter body illustrated.
As shown in Figure 1, this new-type network electric instrument in the preparation, it is core devices that its meter body adopts the 32 8-digit microcontroller STM32F103RB6 of ST Microelectronics, this device belongs to the Cortex-M3 kernel, built-in high-capacity FLASH and SRAM, 12 high-speed AD (analog to digital converter), 2 SPI interfaces, 2 I2C interfaces, 3 SCI interfaces are fit to simulating signal is carried out high-speed sampling and carried out communication with outside each extended function module.Switch power module provides 2 tunnel 5V power supplys of isolating, give the power supply of base main body and external function module, analogue signal circuit is responsible for the input voltage and input current signal is quantized, send microcontroller to carry out the high-speed AD sampling then, and phase voltage, line voltage, electric current, power, power factor (PF), load characteristic, frequency, harmonic wave carried out computing, carry out requirement, timesharing electric degree, primary system meter etc. again.The IO IO interface is mainly selected control to extending out the function add-on module, and SCI extends out with CPU in the additional function modules with the SPI interface and communicates by letter.
As shown in Figure 2, it is the front panel figure of this instrument product (model PD810), also is man-machine Fabric Interface interface simultaneously.Central is backlight LCD segment encode display screen 201.Be key area 202 below.Wherein, sign " I " button shows electric current; By sign " U " button display voltage and frequency; Sign " P/PF " button shows active power, reactive power, applied power and power factor (PF) and requirement; Sign " MAX/AVG " button shows the maximal value and the mean value of electric current, power; Sign " H " button shows the humorous unbalanced value that involves, and sign " E " button shows electric energy and working time, and each menu key is provided with function in addition simultaneously.
Referring to Fig. 3, under the figure object construction that has the expansion draw-in groove of PX1～PX4 interface.
Interface definition referring to PX1 among Fig. 4 (a)～Fig. 4 (d)～PX4 expansion draw-in groove, wherein each slot is all expanded one road spi bus interface and one road SCI bus interface, wherein the expansion of PX4 slot has jtag interface, make things convenient for the upgrading of external debugging and software, and do not need to open the shell of base main body.
Referring to Fig. 5 (a)～Fig. 5 (f) is the outside drawing of six external standard feature modules, below is the concrete parameter of each functional module:
1, the module title of Fig. 5 (a): 2DI/2RO module (input of 2 way switch amounts and 2 road relay output modules), module numbering: PD8M1.
1) 2 way switch amounts input:
Type: the light lotus root isolates input, built-in 24VDC power supply
Function: dry contact input, band SOE event recording function
Isolate withstand voltage: 2KV
Minimum pulse width: 50mS
Response time :≤20mS
The output of No. 2 relays:
Type: mechanical contact
Function: report to the police output or Remote
The way of output: level or pulse response time :≤40mS
Output node capacity: resistive load 250VAC 3A; 30VDC 3A
Isolate withstand voltage: 2.5KV
2) quantity is installed: maximum 3
3) installation site: PX1-PX4, the optional position
4) terminal explanation: switching value is input as DI1, DI2, DIcom (DI imports common port)
5) relay is output as: and RO1 (RO11, RO12), RO2 (RO21, RO22)
6) numbering explanation: if a plurality of 2DI/2RO modules are installed, what be installed in the minimum number in PX position is identified as DI1, DI2, RO1, RO2, and other module is identified as DI3, DI4, DI5, DI6 etc. in proper order according to the PX installation site
2, the module title of Fig. 5 (b): 6DI module (6 way switch amount load module), module numbering: PD8M2.
1) functional description: 6 way switch amounts input
Type: the light lotus root isolates input, built-in 24VDC power supply
Function: dry contact input, band SOE event recording function
2) quantity is installed: maximum 2
3) installation site: PX1-PX4, the optional position
4) terminal explanation: DI1, DI2, DI3, DI4, DI5, DI6, DIcom (DI imports common port)
5) numbering explanation: with the 2DI/2DO module
3, the module title of Fig. 5 (c): 2AO module (2 road analog output module), module numbering: PD8M3.
1) functional description: 2 tunnel analog quantitys output
Type: 4～20mA or 0～20mA
Load: 0～600 ohm of response time :≤50mS
Isolate withstand voltage: 2KV precision: 0.5%
2) quantity is installed: maximum 2
3) installation site: PX1-PX4, the optional position
4) terminal explanation: AO1 (AO1+, AO1-), AO2 (AO2+, AO2-)
5) numbering explanation: with the 2DI/2DO module
4, the module title of Fig. 5 (d): Modbus communication module, module numbering: PD8M4.
1) functional description: expand the second road Modbus RTU communication
Physical layer protocol: RS4852/3 line system half-duplex
Agreement: Modbus agreement RTU pattern
Communication speed: 2400～38400bps isolates withstand voltage: 2.5KV
2) quantity is installed: maximum 1
3) installation site: PX4 fixed position
5, the module title of Fig. 5 (e): electric degree pulse output module, module numbering: PD8M5.
1) functional description: 2 road electric degree pulses output
Type: the light lotus root isolates output output capacity: 10mA, inverse peak voltage 5V
Isolate withstand voltage: 2KV
2) quantity is installed: maximum 1
3) installation site: PX1-PX3, three positions are any
6, the module title of Fig. 5 (f): Profibus-DP communication module, module numbering: PD8M6.
1) functional description: the Profibus-DP communication, support DPV0, DPV1, but built-in selecting type terminal resistance
Communication speed: 9.6K～12Mbps self-adaptation physical layer protocol: RS4852 line system half-duplex
2) quantity is installed: maximum 1
3) installation site: PX4 fixed position
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. the intelligent network electric instrument of external additional function modules is formed by meter body with external additional function modules; Described meter body comprises that electric current and voltage load module, analog signal processing circuit, processor unit, demonstration and key-press module, clock circuit, memory circuit, IO input and output extend out interface module, SCI bus expansion interface module, spi bus and extend out interface module and switch power module; Described electric current and voltage load module connects with analog signal processing circuit; Described processor unit connects analog signal processing circuit, demonstration and key-press module, clock circuit, memory circuit, IO input and output respectively and extends out interface module, SCI bus expansion interface module, spi bus and extend out interface module; Each module of described switch power module and all the other connects; It is characterized in that described external additional function modules comprises the input of 2 way switch amounts and 2 road relay output modules, 6 way switch amount load modules, 2 road analog output modules, Profibus-DP communication module, Modbus communication module and electric degree pulse output module; Described IO input and output extend out interface module and mainly external additional function modules are selected control, and SCI bus expansion interface module extends out interface module with spi bus and communicates by letter with CPU in the external additional function modules.
2. according to the intelligent network electric instrument of the external additional function modules of claim 1, it is characterized in that, the input of described 2 way switch amounts and 2 road relay output modules, 6 way switch amount load modules, 2 road analog output modules and Profibus-DP communication module are built-in processing module, can and carry out independently incident and fault handling with the processor unit communication of meter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201044930U CN201611357U (en) | 2010-01-29 | 2010-01-29 | Intelligent network electric power meter of an outlaid additional function module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201044930U CN201611357U (en) | 2010-01-29 | 2010-01-29 | Intelligent network electric power meter of an outlaid additional function module |
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| CN201611357U true CN201611357U (en) | 2010-10-20 |
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| CN2010201044930U Expired - Lifetime CN201611357U (en) | 2010-01-29 | 2010-01-29 | Intelligent network electric power meter of an outlaid additional function module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798755A (en) * | 2011-05-24 | 2012-11-28 | 松下电工神视龙野株式会社 | Electric power metering device and electric power metering system using the same |
| CN102998648A (en) * | 2012-12-13 | 2013-03-27 | 湖南省电力公司科学研究院 | Multifunctional electric meter for alternating and direct currents |
| CN103364632A (en) * | 2013-06-25 | 2013-10-23 | 乐清市人和电气科技有限公司 | Intelligent digital display instrument |
-
2010
- 2010-01-29 CN CN2010201044930U patent/CN201611357U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798755A (en) * | 2011-05-24 | 2012-11-28 | 松下电工神视龙野株式会社 | Electric power metering device and electric power metering system using the same |
| CN102998648A (en) * | 2012-12-13 | 2013-03-27 | 湖南省电力公司科学研究院 | Multifunctional electric meter for alternating and direct currents |
| CN102998648B (en) * | 2012-12-13 | 2015-07-08 | 湖南省电力公司科学研究院 | Multifunctional electric meter for alternating and direct currents |
| CN103364632A (en) * | 2013-06-25 | 2013-10-23 | 乐清市人和电气科技有限公司 | Intelligent digital display instrument |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |