CN104410164B - Ii type electric energy efficiency management terminal and system - Google Patents
Ii type electric energy efficiency management terminal and system Download PDFInfo
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- CN104410164B CN104410164B CN201410723739.5A CN201410723739A CN104410164B CN 104410164 B CN104410164 B CN 104410164B CN 201410723739 A CN201410723739 A CN 201410723739A CN 104410164 B CN104410164 B CN 104410164B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The present invention provides a kind of II type electric energy efficiency management terminal and system, the terminal includes terminal shell, the control unit in the terminal shell is arranged on, power module, memory cell, data acquisition module, communication module and the display module being connected with described control unit respectively；The data acquisition module includes direct current analog quantity acquisition unit, and the direct current analog quantity acquisition unit includes the DC analogue quantity sample circuit of two-way independence, and DC analogue quantity isolation circuit；The AC sampling unit includes three-phase alternating voltage measuring circuit and three-phase alternating current flow measurement circuitry.The II type electric energy efficiency management terminal has direct current analog quantity acquisition unit and AC sampling unit, non-electric quantity (such as flow, pressure, temperature, humidity) information (i.e. the DC analogue quantity data) that sensor detection is obtained can be acquired, and Current Voltage and power these electrical quantity are measured and data acquisition, so as to realize the detection and management to electric power environmental.
Description
Technical field
The present invention relates to electric power monitoring technical field, more particularly to a kind of II type electric energy efficiency management terminal and system.
Background technology
With national energy-saving emission reduction, the development that deepens continuously of DSM work, build based on intelligent grid
Electric energy service management platform and power consumer energy efficiency monitoring system, it has also become China's energy-saving and emission-reduction and DSM work
The important technology support of development.It is specification electric energy service management platform and power consumer energy efficiency monitoring system Construction, according to unification
Design, scientific and normal construction principle, it is necessary to unified standard is carried out to electric energy efficiency monitoring terminal, therefore has formulated electric energy efficiency
Detection terminal standard design specification.
In existing energy efficiency management system, major part still continues to use the electrical management terminal in major old plants, for example
The centralized automatic meter-reading terminal of state's net, specially becomes management terminal etc., and this Terminal Type belongs to universal management terminal in power system, its
Function can only under certain condition meet the partial function of energy efficiency management system, and in a certain area or some special environment
Under, electric power terminal seems clumsy and unitary function.Specific energy efficiency management terminal, ability are used only under different application environment
Application by energy efficiency management system to electric power environmental performs to ultimate attainment.
The content of the invention
It is asking of solving that above-mentioned existing electrical management termination function is single and can not use under some particular surroundings based on this
Topic, the present invention provides a kind of specific II type electric energy efficiency management terminal and system, can be used under different application environment, can be by
Application of the energy efficiency management system to electric power environmental performs to ultimate attainment.
Its technical scheme is as follows：
A kind of II type electric energy efficiency management terminal, including terminal shell, are arranged on the control unit in the terminal shell,
Power module, memory cell, data acquisition module, communication module and the display module being connected with described control unit respectively；
The data acquisition module includes direct current analog quantity acquisition unit, and the direct current analog quantity acquisition unit includes the straight of two-way independence
Flow field simulation amount sample circuit, and DC analogue quantity isolation circuit；The DC analogue quantity sample circuit front end includes and electric current
The TVS pipe and Zener of signal connection, and the DC current sampling resistor after the TVS pipe and Zener is connected to, with institute
State the binary channels sampled measurements chip of DC current sampling resistor connection；The AC sampling unit is surveyed including three-phase alternating voltage
Amount circuit and three-phase alternating current flow measurement circuitry；The three-phase alternating voltage measuring circuit includes current type voltage transformer, with
The alternating voltage sampling resistor of the voltage transformer connection, and the three-phase alternating current being connected with the alternating voltage sampling resistor
Measurement chip；The three-phase alternating current flow measurement circuitry includes current transformer, the alternating current being connected with the current transformer
Sampling resistor is flowed, and the alternating current sampling resistor is connected with three-phase alternating current measurement chip.
, it is necessary to passing through a certain kind is responsible for acquisition process analysis electrical quantity and non-electric quantity specially (such as in energy efficiency management system
Flow, pressure, temperature, humidity etc.) integrated apparatus of information are detected and are managed to electric power environmental, this special purpose device
Live electric power environmental information can be collected and process, must be concentrated with electric energy efficiency information again carries out data friendship with interactive terminal
Change, under such demand and applied environment, II type electric energy efficiency management terminal is arisen at the historic moment.II type electric energy efficiency management is eventually
End have direct current analog quantity acquisition unit and AC sampling unit, can to sensor detection obtain non-electric quantity (such as flow, pressure
Power, temperature, humidity etc.) information (i.e. DC analogue quantity data) is acquired, and to Current Voltage and power these electrical quantity
Measure and data acquisition, so as to realize the detection and management to electric power environmental.
Technical scheme is further described below：
Further, the power module include with three tunnels output linear transformer, and with the linear transformation
Communication power supply circuit, data acquisition power circuit, the control unit power circuit of device correspondence connection；And, the linear transformation
Device front end is connected with power protecting circuit.Wherein, three power circuits are respectively used to communication module, data acquisition module
Block, control unit are powered, and power protecting circuit can guarantee that circuit is not damaged under overpressure situation and can recovered.
Further, the communication module includes infrared communication unit, ethernet communication unit, and RS485 communication units
Unit；Wherein, the RS485 communication units include two-way RS485 communication interfaces, wherein being all the way the RS485-1 for mouth of checking meter
Communication interface；Another road be for check meter mouth and routinely detection safeguard the RS485-2 communication interfaces of mouth.
Further, also the remote signalling including being connected with described control unit conjugates observation circuit, the remote signalling displacement monitoring
Circuit includes the remote signalling input interface that the active common cathode of remote signalling protection circuit, remote signalling isolation circuit, and two-way is accessed.
Further, also including remote control output circuit, the remote control output circuit includes relay, and is arranged on described
The remote control drive circuit of relay front end.Remote control output uses the normally closed way of output of relay normally open, except using low-power consumption
Outside Panasonic's relay, in order to increase the stability and reliability of control signal, also one drive circuit is added in relay front end.
Further, also including the real-time clock being connected with described control unit, the real-time clock has hardware clock core
Piece, the hardware clock chip internal integrated temperature compensated crystal oscillator.
Further, the display module includes that the LCD display unit being arranged on the terminal shell and LED indicate list
Unit；The LCD display unit includes liquid crystal module, is integrated in the lcd drive chip of the liquid crystal module, and with the liquid
The LCDs of brilliant driving chip connection；LED indicating members include the double-colored transmitting-receiving lamps of RS485, power supply indicator, running indicator,
Remote-controlled alarm lamp, and for measuring the active reactive indicator lamp of energy efficiency monitoring terminal power.
Further, also including the key circuit being connected with control unit, the key circuit includes being arranged at the end
Button in end housing, and the 100nf being connected with the button anti-erroneous judgement electric capacity.Key circuit is input into using common I/O
The mode of detection, the electric capacity of 100nf can shake the erroneous judgement for causing in mode.
The present invention also provides a kind of II type electric energy efficiency management system, including multiple above-mentioned II type electric energy efficiency management are eventually
End, be connected with the II type electric energy efficiency management terminal electric energy efficiency information concentration and interactive terminal, and with the electric power
Efficiency information concentrates the test main frame being connected with interactive terminal；And also include what is be connected with the II type electric energy efficiency management terminal
Water, electricity and gas measuring instrumentss, non-electric quantity sampling sensor, electrical quantity acquisition instrument.
The present invention has following prominent beneficial effect：
(1) the II type electric energy efficiency management terminal has special function, the data-handling capacity of innovation, the outside of specialty
Interface；
(2) existing or future energy efficiency management system running enterprise design is adapted to completely, no matter from performance or function, its
Using the use through whole energy efficiency management system；
(3) in addition, its cost is controllable so that its advantage is more significantly in existing energy efficiency management terminal.
Brief description of the drawings
Fig. 1 is the main structure diagram of II type electric energy efficiency management terminal described in the embodiment of the present invention；
Fig. 2 is the present invention looks up structural representation of II type electric energy efficiency management terminal described in the embodiment of the present invention；
Fig. 3 is the left view structural representation of II type electric energy efficiency management terminal described in the embodiment of the present invention；
Fig. 4 is the forward sight structural representation of II type electric energy efficiency management terminal described in the embodiment of the present invention；
Fig. 5 is the backsight structural representation of II type electric energy efficiency management terminal described in the embodiment of the present invention；
Fig. 6 is total schematic block diagram of II type electric energy efficiency management terminal described in the embodiment of the present invention；
Fig. 7 is the power module communication power supply of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
Electrical block diagram；
Fig. 8 is the power module data acquisition of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
Circuit construction of electric power schematic diagram；
Fig. 9 is the power module control unit of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
Circuit construction of electric power schematic diagram；
Figure 10 is RS485 in the communication module of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
One electrical block diagram of communication unit；
Figure 11 is RS485 in the communication module of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
Communication unit another electrical block diagram；
Figure 12 is the data acquisition module of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
DC analogue quantity sample circuit structural representation；
Figure 13 is the data acquisition module of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
DC analogue quantity isolation circuit structural representation；
Figure 14 is the data acquisition module of the control unit of II type electric energy efficiency management terminal described in the embodiment of the present invention
The part circuit structure schematic diagram of AC sampling unit；
Figure 15 is total schematic block diagram of II type electric energy efficiency management system described in the embodiment of the present invention.
Description of reference numerals：10- housing bodies part, 11- LCDs, 12- indicator lamps, 13- buttons, 20- housings
Mounting portion, 21- connection terminals, 22- guide-track grooves, 23- card columns, 24- fixed lobes, 25- buckling parts, 100- control units,
200- power modules, 210- communication power supply circuits, 220- data acquisition power circuits, 230- control unit power circuits, 300-
Data acquisition module, 310- direct current analog quantity acquisition units, 320- AC sampling units, 400- communication modules, 410-RS485 leads to
Letter unit, 420- ethernet communication units, 430- infrared communication units, 500- real-time clocks, 600- memory cell, 700- shows
Module, 710-LCD display units, 720-LED indicating members, 730- key circuits, 800- remote signalling displacement detection circuit, 900- is distant
Control output circuit.
Specific embodiment
Embodiments of the invention are described in detail below：
In energy efficiency management system, it is necessary to pass through a certain kind be responsible for specially acquisition process analysis non-electric quantity (such as flow, pressure
Power, temperature, humidity etc.) integrated apparatus of information are detected and are managed that this special purpose device can be received to electric power environmental
Collect and process live electric power environmental information, must be concentrated with electric energy efficiency information again carries out data exchange with interactive terminal, at this
Under the demand and applied environment of sample, electric energy efficiency management terminal is arisen at the historic moment.
As shown in Figures 1 to 6, the present invention provides a kind of II type electric energy efficiency management terminal, and it uses three-phase and four-line 3*
220/380V powers, and current measuring range is 5 (10) A.The II type electric energy efficiency management terminal (is not marked including terminal shell in figure
Show), the control unit 100 in terminal shell is arranged on, power module 200, the storage list being connected with control unit 100 respectively
Unit 600, data acquisition module 300, communication module 400 and display module 700.The II type electric energy efficiency management terminal has straight
Flow field simulation amount collecting unit 310 and AC sampling unit 320, can to sensor detection obtain non-electric quantity (such as flow, pressure
Power, temperature, humidity etc.) information (i.e. DC analogue quantity data) is acquired, and to Current Voltage and power these electrical quantity
Measure and data acquisition, so as to realize the detection and management to electric power environmental.The II type electric energy efficiency management terminal can be by
The information gathering of applied environment is returned, and carries out the analyzing and processing of next step, and its major function includes non electrical quantities measurement, electric flux
Measurement data record, logout, and other data analyses such as measurement, voltage x current power.Electric energy measurement include it is idle and
Active split-phase closes phase electrical measurement, and electricity is settled accounts and freezed.
As shown in Figures 1 to 5, the terminal shell of above-mentioned II type electric energy efficiency management terminal mainly includes housing body part
10 and housing installation portion points 20, the housing body part 10 is set to square, is provided with display module 700 and button electricity
The peripheral hardware part on road 730, such as LCDs 11, various indicator lamps 12, and various buttons 13.And the housing body part 10
It is internally provided with control unit 100, memory cell 600, data acquisition module 300, communication module 400 etc. unit module electricity
Road.In addition, housing installation portion point 20 is designed to U-shaped structure, and above-mentioned housing body part 10 is flush-mounted in the housing installation portion
Divide 20 U-shaped structure intermediate groove position, and be respectively mounted on the both sides bossing of housing installation portion point 20 and be provided with one
Row's connection terminal 21, for the input and output connection of each circuit module.And, the dorsal part of housing installation portion point 20 also sets up
Have and fixed guide-track groove 22 is installed, the II type electric energy efficiency management terminal can be arranged on a guide rail.The other guide rail
The side of groove 22 has multiple fixed lobes 24, and opposite side has multiple scalable card columns 23, can manage the II type electric energy efficiency
Terminal card is fastened on guide rail.In addition, the dorsal part in housing installation portion point 20 is additionally provided with buckling parts 25, using screw
The II type electric energy efficiency management terminal is mounted on wall.
Specifically, the control unit 100 of above-mentioned II type electric energy efficiency management terminal is arranged on inside terminal shell, the control
It is the high-speed controller of ARM3 series STM32F107VC that unit 100 uses kernel, the high-speed controller as terminal main control part
Part, its maximum running frequency is that maximum processing speed is 72MHz, with 256Kbytes Flash memory spaces, 64Kbytes
SRAM, Ethernet MAC interface, and USB2.0full-speed device/host/OTG interfaces.The control unit 100
For processing data information analysis, such as analyzing and processing of non-electric quantity, electrical quantity and other data messages.And, II type electricity
Power energy efficiency management terminal also includes the real-time clock 500 being connected with control unit 100, for providing the accurate high-precision time
Information, and output clock pulse signal.The real-time clock 500 has the hardware clock core for being internally integrated temperature compensating crystal oscillator
Piece.Its specifically used device be RX8025T, its be it is a be internally integrated 32.768KHz temperature compensating crystal oscillators it is hard when
Clock chip, can ensure walking time error in 0.5s/d in temperature -40~70 DEG C scope, and terminal supports real-time formula.
And, the memory cell 600 being connected with control unit 100, for store various information that main control unit counted,
Conversion exchanges information.The program and data storage that memory cell 600 is used are the 4Mbyte flash of SST companies,
The storage chip of 150Kbit/s storage speeds, its full wafer refresh time reaches 35ms, can carry out writing with a brush dipped in Chinese ink for 100,000 times number of times, and can be
Data keep not failing in 100 years.Storage chip encapsulation uses generic encapsulation, can need dilatation according to system, and its communication connects
Mouth is SPI.In addition, to be lost when ensureing significant data because of terminal operating exception, system additionally with the addition of non-volatile ferroelectricity
Memory FM24CL16, special storage significant data and parameter, its memory space is 16Kbit, and bus frequency is 1MHz to the maximum,
Data can keep not failing for 10 years, and its communication interface is IIC.
As shown in Figure 7 to 9, II above-mentioned type electric energy efficiency management terminal also includes power module 200, the power module
200 include the voltage endurance capability between the linear transformers with the output of three tunnels, transformer each secondary with more than 2000V, with
And communication power supply circuit 210 (as shown in Figure 7), (such as Fig. 8 of data acquisition power circuit 220 of connection corresponding with linear transformer
It is shown), control unit power circuit 230 (as shown in Figure 9), three power circuits are respectively used to be adopted to communication module 400, data
Collection module 300, control unit 100 are powered.And, linear transformer front end is provided with power protecting circuit, the power protection
Circuit can guarantee that circuit is not damaged under overpressure situation and can recovered.Specifically, control unit power circuit 230 uses DC-DC
Power supply chip L5970D, output maximum current can reach 1A.And other two-way power circuits use 78L05 power supply chips, can be steady
Pressure output 5V.In addition, the power module 200 increased a power supply monitoring chip ADM823, when control unit operation irregularity, nothing
Method it is normal to ADM823 output pulse signals when, ADM823 chips can reset to control unit, allow system reboot.
In addition, as shown in Figure 12 to Figure 13, the also data acquisition including being connected with control unit 100 and power module 200
Module 300, the data acquisition module 300 includes direct current analog quantity acquisition unit 310, for gathering the non-electric quantity that measurement is obtained
(temperature, humidity, air pressure, flow etc.) data.For the difference of monitored target local environment, the various sensors of assembled in situ
(temperature sensor, humidity sensor, pressure sensor, flow sensor etc.), these environment parameters include temperature, humidity, air pressure,
Flow etc., monitoring terminal is spaced according to set time carries out data acquisition to the DC analogue quantity of these non-electric quantities output, surveys
Amount accuracy requirement is in the range of ± 1%.The direct current analog quantity acquisition unit 310 includes that the DC analogue quantity of two-way independence is sampled
Circuit (as shown in figure 12), and for isolating the DC analogue quantity sample circuit and power supply (i.e. data acquisition power circuit
220) DC analogue quantity isolation circuit (as shown in figure 13).I.e. direct current analog quantity acquisition unit 310 by power supply, sample circuit,
Isolation circuit is constituted.And, DC analogue quantity sample circuit front end includes the TVS pipe and Zener that are connected with current signal, with
And it is connected to the DC current sampling resistor after TVS pipe and Zener, the binary channels sampling being connected with DC current sampling resistor
Measurement chip.Specifically, the DC analogue quantity input of two-way independence is devised, has used the AD7911 binary channels of ADI companies to adopt
Sample measures chip, and wherein power supply was entering SPX5205M5 voltage stabilizings into 5V outputs by the DC-DCTPV0512 that band is isolated.Isolation circuit
Main chip ADM1411 and periphery by that can provide multiple signals isolation is constituted.And the current signal of sample circuit front end input
Measured by sampled measurements chip AD7911MR after being converted into voltage through 200R DC current sampling resistors, front end increased anti-overvoltage
TVS pipe and anti-reversed Zener.Sampled measurements chip uses the AD7911 of 16 bit resolutions, in temperature wide -40 DEG C~+105
It is can be controlled in the error range of 3.5PPM in the range of DEG C.It is required that measured DC analogue quantity scope be 4/20mA, and eventually
The measurement range of end equipment is 3.3V ± 100mV, and certainty of measurement reaches 0.005mV, higher than desired certainty of measurement.The direct current mould
Analog quantity collecting unit no matter power supply power or signal transmission on, all use>The electrical equipment isolation of 2000VDC, it is ensured that terminal
It is preferably minimized by extraneous electric effect.
As shown in figure 14, the data acquisition module 300 also include AC sampling unit 320, for gather electric current, voltage with
And power these electric quantity informations.Specifically, AC sampling includes the measurement of three-phase alternating voltage and alternating current, i.e. exchange is adopted
Sample unit includes three-phase alternating voltage measuring circuit and three-phase alternating current flow measurement circuitry.Tension measuring circuit and current measurement electricity
Road shares a three-phase alternating current measurement chip, and three-phase alternating current measurement chip uses three-phase power AC measurment special chip
ADE7878, A/B/C three-phase current, voltage measurement circuit independence.The tension measuring circuit front end signal processing unit of each of which phase
Divide the 2mA/2mA current type voltage transformers using star lattice SPT204A, current measurement circuit front end uses SCT254AX (5A/
2.5mA) current transformer is used as electric current strong and weak signals switching device, and it is 24 that three-phase alternating current measurement chip uses effective accuracy
ADE7858 be responsible for electric current, voltage signal are sampled and are processed.Three-phase alternating current measurement chip ADE7858 can -40 DEG C~
Normal work and ensure 10ppm/ DEG C of error range in+85 DEG C of temperature ranges.Other ADE7858 can also operation independent, metering has
The power information such as work(power and reactive power, can be communicated by SPI interface or IIC interfaces with MCU, and data friendship is carried out in real time
Mutually.
Further, current type voltage transformer SPT204A (2mA/2mA) is used in tension measuring circuit front end, is passed through
220V is measured photovoltaic conversion and measures electric current, then the alternating voltage sampling resistor turn for passing through 100R into 2mA by the mode of voltage current limliting
Formation voltage, is input to three-phase alternating current measurement chip ADE7878.In addition, using current transformer in current measurement circuit front end
SCT254AX(5(10)A/2.5mA<0.1%), control source is changed into by the alternating current sampling resistor of 26R to intersect to three
Flow measurement chip ADE7878, and current measurement is using the metering system of Differential Input, and add TVS on differential signal both sides
Pipe, can avoid three-phase alternating current from measuring chip and be damaged because measuring overtension.
In addition, the II type electric energy efficiency management terminal also includes the communication module 400 being connected with control unit 100, it is
The key of II type electric energy efficiency management terminal, including infrared communication unit 430, ethernet communication unit 420, and RS485 are logical
Letter unit 410.Wherein, infrared communication unit 430 is far-infrared communication, and communication distance reaches 10m, and circuit is by receiving and sending two
It is grouped into, sending signal is 38Khz pulse-modulated signals, receiver possesses the filter function of 38khz in itself, strengthens anti-interference energy
Power.And the design side of the MAC interface that ethernet communication unit 420 is carried using ethernet controller KSZ8031 and STM32F107
Case, using the communication mode of RMII between ethernet controller and MAC interface, communication speed reaches 50Mbit/s.Such as Figure 10 to figure
Shown in 11, and RS485 communication units 410 include two-way RS485 communication interface RS485-1 and RS485-2, and by terminal lead
Out, RS485-1 communication interfaces highest communication speed is 2400bit/s all the way, is only used as mouth of checking meter；Another road RS485-2 leads to
Letter interface letter speed reaches 115200bit/s, can be used not only as mouth of checking meter, it may also be used for the routine of II type electric energy efficiency management terminal
Property detection safeguard mouth.And, above-mentioned RS485 hardware interfaces using directionless 485 chip, i.e. differential lines no longer need strictly by
Can also be communicated according to positive and negative wiring.
Three kinds of above-mentioned communication modes employ two kinds of communication protocols altogether, and one kind is uplink communication agreement, and one kind is descending
Communication protocol.Wherein, over the horizon communication system, RS485-2 communication modes use 645/2007 uplink communication agreement, up end
End communication can be by the data of RS485-2 communication interface copy reading efficiency terminals；II type can be read by infrared palm machine in addition
The data and modification terminal parameter information of electric energy efficiency management terminal；The temporary transient only one of which program upgrade function of Ethernet, after
Its application can be promoted according to the difference of applied environment.Whole uplink communication performs standard《DL/T645-2007 multifunctional electric energy
Table communication protocol》And its expansion convention.In addition, RS485-1 communication modes use 645/2007 downlink communication agreement, it is responsible for copy reading
The data of electric energy meter, the communication interface also has relay function, can improve communication quality, can carry out terminal program upgrading.
In addition, the II type electric energy efficiency management terminal also includes being arranged on terminal shell what is be connected with control unit 100
Display module 700, the display module 700 includes LCD display unit 710 and LED indicating members 720.And the LCD display unit
710 include liquid crystal module, are integrated in the lcd drive chip of liquid crystal module, and the liquid crystal display being connected with lcd drive chip
Screen 11, the LCDs 11 is arranged on housing body part 10.LCD display unit 710 uses the liquid crystal mould of 160*160mm
Group display mode, because liquid crystal module has been integrated with lcd drive chip, as long as therefore in design by control unit 100
Bus data transfer, you can realize liquid crystal display and brightness regulation, can also be by resetting pin, the control liquid such as LCD backlight control
Crystalline substance display.Liquid crystal display menu includes chopped-off head menu and further menu, and chopped-off head menu is aobvious including non-electric quantity information wheel, one-level
Menu includes terminal parameter, system information, terminal maintenance.In addition, LED indicating members 720 are also disposed at housing body part 10
On, including the various indicator lamps 12 coordinated using two kinds of light emitting diodes of highlighted feux rouges and green glow.The LED indicating members 710 are wrapped
Include the double-colored transmitting-receiving lamps of RS485-1 and RS485-2,3.3V power supply indicators, running indicator, remote-controlled alarm lamp, active reactive indicator lamp,
Wherein active reactive indicator lamp can be used to measure the power of energy efficiency monitoring terminal.
Additionally, the II type electric energy efficiency management terminal also includes the key circuit 730 being connected with control unit 100, this is pressed
Key circuit 730 includes being arranged at button 13 on terminal shell, and the 100nf being connected with button 13 anti-erroneous judgement electric capacity.Press
By the way of common I/O input detections, the electric capacity of 100nf can shake the erroneous judgement for causing to key circuit 730 in mode.And terminal
Basic operation using " on ", D score, " it is determined that ", " cancellation " totally four buttons 13 are realized, simple and convenient.
Additionally, the II type electric energy efficiency management terminal also includes the remote signalling displacement observation circuit being connected with control unit 100
800 and remote control output circuit 900.The remote signalling displacement observation circuit 800 include remote signalling protection circuit, remote signalling isolation circuit, and
The remote signalling input interface that the active common cathode of two-way is accessed, per interface all the way, band antistatic and misoperation is protected.Remote control output electricity
Road by the control signal of 5V, can control the 220V circuits of 5 (10) A, and it includes relay, and is arranged on relay front end
Remote control drive circuit, remote control output uses the normally closed way of output of relay normally open (being needed to use by scene), except using low work(
Outside Panasonic's relay of consumption, in order to increase the stability and reliability of control signal, also electricity is driven in relay front end addition one
Road.
As shown in figure 15, the present invention also provides a kind of II type electric energy efficiency management system, including multiple above-mentioned II type electricity
Power energy efficiency management terminal, the electric energy efficiency information that is connected with II type electric energy efficiency management terminal is concentrated and interactive terminal (the two it
Between can communication mode be communicatively coupled by the way that RS485, power carrier, micropower be wireless etc.), and with electric energy efficiency information
The test main frame that concentration is connected with interactive terminal, and also include the water, electricity and gas measuring instrument being connected with II type electric energy efficiency management terminal
Table, non-electric quantity sampling sensor (such as amperometric sensor, digital sensor), electrical quantity acquisition instrument equipment and other
Instrumentation etc..
The II type electric energy efficiency management terminal and system that the present invention is provided have non electrical quantities measurement, electrical quantities measurement, electricity
Energy meter, measurement data record, logout, efficiency data analysis, communication, I/O configuration features, software upgrading, pulse is defeated
Go out, the special function of keyboard operation and display etc.；Also there is the data-handling capacity of innovation, i.e. electric energy measurement, measurement number
According to record, logout, efficiency data analysis etc..Wherein electric energy measurement includes idle and active split-phase or closes the survey of phase electricity
Amount, electricity is settled accounts and freezed；Measurement data record includes applied environment including voltage x current power temperature humidity stress flow etc.
Information data；Logout includes that power factor (PF) is out-of-limit, and non-electric quantity exception, ABC voltages, current imbalance are out-of-limit, in terminal
The events such as electric power down, terminal parameter setting；Efficiency data analysis refers to the data using monitoring terminal collection, by embedding energy
Effect model, calculates the use energy conversion efficiency of monitored equipment or system, and the calculated value of utilisation system checks terminal
The reliability of efficiency value；The external interface of specialty, such as Current Voltage input interface, DC analogue quantity input interface, electrical quantity is adopted
Collection interface, communication input/output interface, control interface, remote signalling interface etc.；Consider various possibilities and there is scalability, can be complete
Existing or future energy efficiency management system running enterprise design is adapted to entirely, and no matter from performance or function, its application is through whole
The use of energy efficiency management system；In addition, modularized design makes its cost controllable so that its advantage is in existing energy efficiency management terminal
In it is more significantly.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of II type electric energy efficiency management terminal, it is characterised in that including terminal shell, be arranged in the terminal shell
Control unit, the power module being connected with described control unit respectively, memory cell, data acquisition module, communication module and
Display module；
The data acquisition module include for gather measurement obtain temperature, humidity, air pressure, flow non-electric quantity data it is straight
Flow field simulation amount collecting unit, and for gathering electric current, voltage and the AC sampling unit of power these electric quantity informations；It is described
Direct current analog quantity acquisition unit includes the DC analogue quantity sample circuit of two-way independence, and DC analogue quantity isolation circuit；And
The DC analogue quantity sample circuit front end includes the TVS pipe and Zener that are connected with current signal, and is connected to the TVS
DC current sampling resistor after pipe and Zener, the binary channels sampled measurements core being connected with the DC current sampling resistor
Piece；
The AC sampling unit includes three-phase alternating voltage measuring circuit and three-phase alternating current flow measurement circuitry；Described three intersect
Stream tension measuring circuit include current type voltage transformer, the alternating voltage sampling resistor being connected with the voltage transformer, with
And the three-phase alternating current measurement chip being connected with the alternating voltage sampling resistor；The three-phase alternating current flow measurement circuitry includes electricity
Current transformer, the alternating current sampling resistor being connected with the current transformer, and the alternating current sampling resistor and three-phase
AC measurment chip is connected.
2. II type electric energy efficiency management terminal according to claim 1, it is characterised in that the power module includes having
Three tunnels output linear transformer, and connection corresponding with the linear transformer communication power supply circuit, data acquisition power supply
Circuit, control unit power circuit；And, the linear transformer front end is connected with power protecting circuit.
3. II type electric energy efficiency management terminal according to claim 1, it is characterised in that the communication module includes infrared
Communication unit, ethernet communication unit, and RS485 communication units；
Wherein, the RS485 communication units include two-way RS485 communication interfaces, wherein being all the way the RS485-1 for mouth of checking meter
Communication interface；Another road be for check meter mouth and routinely detection safeguard the RS485-2 communication interfaces of mouth.
4. II type electric energy efficiency management terminal according to claim 1, it is characterised in that also including with described control unit
The remote signalling displacement observation circuit of connection, remote signalling displacement observation circuit includes remote signalling protection circuit, remote signalling isolation circuit, and
The remote signalling input interface that the active common cathode of two-way is accessed.
5. II type electric energy efficiency management terminal according to claim 1, it is characterised in that also including remote control output circuit,
The remote control output circuit includes relay, and the remote control drive circuit for being arranged on the relay front end.
6. II type electric energy efficiency management terminal according to claim 1, it is characterised in that also including with described control unit
The real-time clock of connection, the real-time clock has hardware clock chip, and the hardware clock chip internal integrated temperature compensates crystal
Oscillator.
7. II type electric energy efficiency management terminal according to claim 1, it is characterised in that the display module includes setting
In the LCD display unit on the terminal shell and LED indicating members；
The LCD display unit includes liquid crystal module, is integrated in the lcd drive chip of the liquid crystal module, and with the liquid
The LCDs of brilliant driving chip connection；
LED indicating members include the double-colored transmitting-receiving lamps of RS485, power supply indicator, running indicator, remote-controlled alarm lamp, and for measuring
The active reactive indicator lamp of energy efficiency monitoring terminal power.
8. II type electric energy efficiency management terminal according to claim 1, it is characterised in that also including being connected with control unit
Key circuit, the key circuit includes being arranged at button on the terminal shell, and is connected with the button
The anti-erroneous judgement electric capacity of 100nf.
9. a kind of II type electric energy efficiency management system, it is characterised in that including multiple as described in claim 1-8 any one
II type electric energy efficiency management terminal, the electric energy efficiency information being connected with the II type electric energy efficiency management terminal is concentrated and interacted eventually
End, and the test main frame being connected with interactive terminal is concentrated with the electric energy efficiency information；And also include and the II type electric power
Water, electricity and gas measuring instrumentss, non-electric quantity sampling sensor, the electrical quantity acquisition instrument of energy efficiency management terminal connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749022.3U CN204304613U (en) | 2014-12-02 | 2014-12-02 | II type electric energy efficiency office terminal and system |
| CN201410723739.5A CN104410164B (en) | 2014-12-02 | 2014-12-02 | Ii type electric energy efficiency management terminal and system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749022.3U CN204304613U (en) | 2014-12-02 | 2014-12-02 | II type electric energy efficiency office terminal and system |
| CN201410723739.5A CN104410164B (en) | 2014-12-02 | 2014-12-02 | Ii type electric energy efficiency management terminal and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104410164A CN104410164A (en) | 2015-03-11 |
| CN104410164B true CN104410164B (en) | 2017-06-16 |
Family
ID=54696251
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410723739.5A Expired - Fee Related CN104410164B (en) | 2014-12-02 | 2014-12-02 | Ii type electric energy efficiency management terminal and system |
| CN201420749022.3U Expired - Fee Related CN204304613U (en) | 2014-12-02 | 2014-12-02 | II type electric energy efficiency office terminal and system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420749022.3U Expired - Fee Related CN204304613U (en) | 2014-12-02 | 2014-12-02 | II type electric energy efficiency office terminal and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104410164B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410164B (en) * | 2014-12-02 | 2017-06-16 | 广东中钰科技股份有限公司 | Ii type electric energy efficiency management terminal and system |
| CN106053981A (en) * | 2016-05-25 | 2016-10-26 | 天纳能源科技（上海）有限公司 | Electric energy quality acquisition terminal and related method |
| CN106226631A (en) * | 2016-08-31 | 2016-12-14 | 中铁工程设计咨询集团有限公司 | A kind of railway that is applied to becomes the on-Line Monitor Device of platform |
| CN106602726B (en) * | 2016-12-15 | 2019-05-28 | 广东工业大学 | A kind of electric energy efficiency monitoring terminal and method |
| CN107015512A (en) * | 2017-06-02 | 2017-08-04 | 国网山东省电力公司烟台供电公司 | A kind of intelligent electric power steward system |
| CN108736575A (en) * | 2018-09-10 | 2018-11-02 | 廊坊市坤友电气有限公司 | A kind of high-low voltage electric power distribution cabinet intelligent remote information collecting device |
| CN110109379A (en) * | 2018-12-06 | 2019-08-09 | 福建网能科技开发有限责任公司 | A kind of auxiliary circuit that the IO based on concentrator is expanded |
| CN114002499A (en) * | 2021-09-22 | 2022-02-01 | 浙江京禾电子科技有限公司 | Multi-loop AC/DC integrated wide area measurement terminal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100535951C (en) * | 2006-12-26 | 2009-09-02 | 广州智光电气股份有限公司 | Loading control and multi-channel time-shared charge electric energy combined management system and its implementing method |
| JP2008271721A (en) * | 2007-04-23 | 2008-11-06 | Power System:Kk | Power management system |
| CN101699298B (en) * | 2009-11-12 | 2011-08-10 | 安徽鑫龙电器股份有限公司 | One-phase digital current/voltage measuring instrument and measuring method thereof |
| CN103595139A (en) * | 2013-11-27 | 2014-02-19 | 国家电网公司 | Load monitoring device for electrical power system |
| CN104410164B (en) * | 2014-12-02 | 2017-06-16 | 广东中钰科技股份有限公司 | Ii type electric energy efficiency management terminal and system |
-
2014
- 2014-12-02 CN CN201410723739.5A patent/CN104410164B/en not_active Expired - Fee Related
- 2014-12-02 CN CN201420749022.3U patent/CN204304613U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN204304613U (en) | 2015-04-29 |
| CN104410164A (en) | 2015-03-11 |
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