CN105529823B - It is a kind of based on power load management identifying system terminal and terminal build system - Google Patents
It is a kind of based on power load management identifying system terminal and terminal build system Download PDFInfo
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Abstract
The invention discloses a kind of terminals based on power load management identifying system and terminal to build system, wherein including frequency selection circuit based on power load management intelligent identifying system, frequency selection circuit includes the active band-pass filter being made of integrated transporting discharging and RC network；Terminal includes power interface, current sensor, voltage sensor, A/D conversion module, communication module, relay control module, output socket；The terminal system of building includes server, communication network, multiple terminal electrical equipments, multiple power loads management intelligent identifying system terminal, multiple concentrators；Above-mentioned technical proposal by frequency selection circuit carrier wave can identify the terminal that is made of the identifying system and build system to power supply, control electricity, ration the power supply, meter reading, charging；And multiple terminal electrical equipments carry out various electro-detection and measurements, alert and force power-off in time, with server exchange record, improve prosecution and safety.
Description
Technical field
The invention discloses a kind of terminals based on power load management identifying system and terminal to build system.
Background technique
Currently, the personnel such as institution of higher learning's student dormitory, employee dormitory inhabitation is asked than the environment Electrical Safety of comparatively dense
Topic is not gradually managed person's great attention.To effectively prevent or eliminating fiery trouble, need to control high-power or there are security risk
Electric heating load, such as electric furnace, immersion heater, electric iron, intelligent monitoring technology can be efficiently used for such bad load
Detection, therefore be more and more widely used.Currently, intelligent monitoring and control terminal is generally only for identifying in linear load
Purely resistive load (such as electric heater, electric furnace, electric blanket).Now, the intelligent monitoring and control terminal of domestic contrast prevalence mainly has: IC
Card control system: major function is charging control；Ration the power supply control cabinet: a given peak load is more than threshold value power failure as threshold value；
Multi-functional electricity-using control cabinet: energy automatic charging is rationed the power supply by given threshold.Power supply management automation in China's is mainly used in power supply system
System peak load shifting and load balance, it is intended to improve power grid power supply safety and electric energy application efficiency.Power consumption management is then only laid particular emphasis on
The reform of the measurement means such as remote meter reading, IC card ammeter, currently, China's power supply ability increasingly improves, and really by electricity consumption
Integrated management, centralized and unified pipe is included in remote meter reading, time control, remained capacity, load limitation and fault warning etc.
Reason system is in the ascendant, makes full use of network advantage to carry out the unified management of electricity consumption centralization then at the early-stage.
It is basic with intelligence load identifier (also known as intelligent cutoff) for the centralized power consuming administrative system of majority in the market
Working principle is: detecting whether resistive load, powers off, controls as long as resistive load.However, this kind of electricity consumption TT&C system
Generally existing limitation following aspects: (1) cannot the property to resistive load (such as allow using still not allowing to make
Electric appliance etc.) effectively screened；It (2) can not Detection & Controling to the inductive load air-conditioning of big electrical power, capacitive load；
(3) uninterrupted, unrestricted in the public emergents such as toilet, the passageway lived to personnel in intensive power utilization environment illumination space
Electric time control (but metering electric charge) cannot achieve.(4) fault detection effectively cannot be carried out to common power load, and
Alarm.
Summary of the invention
The present invention in order to solve problems in the prior art, provides one kind based on power load and manages intelligent identifying system,
Including frequency selection circuit, the frequency selection circuit includes the active band-pass filter being made of integrated transporting discharging and RC network, described active
The harmonic wave that bandpass filter is generated by nonlinear load, the harmonic wave that the nonlinear load generates all pass through semiconductor thyristor
Switch operation and diode, semiconductor thyristor nonlinear characteristic generate.
As further limitation of the invention, the centre frequency of the frequency selection circuit is chosen 3 times, 5 subfrequencies, that is, is chosen
150Hz and 250Hz.
Amplification and buffer function are had concurrently as further limitation, the source filter of the invention, it can using active filter
Inhibit other unrelated frequency signal to protrude the signal of optional frequency
As further limitation of the invention, the generation of the harmonic current number is related to the umber of pulse of power converter,
The harmonic current that same nonlinear load generates reduces with the increase of overtone order.
The present invention in order to solve problems in the prior art, provides a kind of based on power load management intelligent identifying system
Terminal, including power interface, current sensor, voltage sensor, A/D conversion module, communication module, relay control module,
Output socket；It is characterized by: the terminal further includes frequency selective harmonic separation module, electric energy metering module, cpu load identification control
Module；The power interface by current sensor, after voltage sensor, current sensor, voltage sensor and electrical energy measurement
Module connection conversion, the current sensor, voltage sensor and electric energy metering module connection conversion in separate all the way with A/D
Conversion module connection conversion, the current sensor can individually separate signal frequency selective harmonic separation module all the way again and carry out frequency-selecting simultaneously
Harmonic signal is isolated, after the harmonic signal amplification isolated, A/D conversion module is given and carries out analog-to-digital conversion, the A/D conversion
Module by the transformation result of conversion be input to cpu load identification control module, by cpu load identification control module carry out execute and
Control, and transmission is connect with communication module, the cpu load identification control module is connect with relay control module, relay
Control module is connect with output socket.
The present invention in order to solve problems in the prior art, provides a kind of based on power load management intelligent identifying system
Terminal builds system, including server, communication network, multiple terminal electrical equipments；The system further includes multiple power loads
Intelligent identifying system terminal, multiple concentrators are managed, the server passes through the connection of communication network and multiple concentrators, described
Multiple concentrators manage intelligent identifying system terminal with multiple power loads by communication network and connect, the multiple power load
Management intelligent identifying system terminal is connect with multiple terminal electrical equipments.
As further limitation of the invention, the communication network includes power carrier, wireless, 485, Ethernet, CAN bus
Multiple communication modes.
As further limitation of the invention, the communication network between the server and concentrator couples to be joined for Ethernet
It connects, the concentrator is connect with the communication network of multiple terminal electrical equipments may be selected power carrier, wireless, 485, CAN bus
In any one communication modes.
As further limitation of the invention, the power load management intelligent identifying system terminal sets multiple terminal electricity consumptions
It is standby identified, condition monitoring, judgement, control, and corresponding data are transferred to concentrator by communication network, by collecting
Middle device is put into data on communication network, is transferred to server progress data operation, analysis by communication network, judges and deposit
Storage.
Advantageous effects of the invention: 1, using hardware circuit, using comb filtering technology to fundamental wave in sampling load,
Harmonic parameters synchronize discretization, thus realize fundamental wave, harmonic parameters Fast synchronization measurement, thus using these parameters when
Become feature and carries out loadtype identification.The technology greatly reduces the burden of software algorithm, improves system response time；2, soft
Part algorithm: using the dispersion effect of different loads harmonic wave, the time varying characteristic of fundamental wave, harmonic parameters is used for the knowledge of loadtype
Not, erroneous judgement risk is greatly reduced；3, it registers electric appliance: in same type electric appliance load, utilizing different loads power, harmonic dispersion
The difference of effect establishes the registration table of limited quantity, can by filtered out in the load group for forbidding type allow using load；4,
Various electro-detection and measurements can be carried out to the electric appliance or electrical equipment by managing intelligent identifying system terminal by power load,
It carries out judging the electric appliance or electrical equipment operating status using the various electricity consumptions measured, passes through a variety of communication network remote alarms
Or control；It with collection power supply, control electricity, rations the power supply, distinguishes loadtype and size, and the alarm and automatic of carrying out transfiniting on this basis
Force power-off；5, the power load management intelligent identifying system for building system of power load management intelligent identifying system terminal is whole
End can actively cut off the power after identifying electric appliance, and record to being submitted by module and server, improve prosecution
And safety, convenient for operation.
Detailed description of the invention
Fig. 1 is that the present invention is based on the terminal structure schematic diagrames of power load management intelligent identifying system.
Fig. 2 is that the present invention is based on the terminal inner system operational flow diagrams of power load management intelligent identifying system.
Fig. 3 is to build system structure diagram the present invention is based on the terminal of power load management intelligent identifying system.
In figure: power interface 1, current sensor 2, voltage sensor 3, A/D conversion module 4, electric energy metering module 5, CPU
Remained capacity control module 6, communication module 7, frequency selective harmonic separation module 8, concentrator 9, electric loading manage intelligent identifying system
Terminal 10, server 11, relay control module 12, terminal electrical equipment 13, communication network 14, output socket 15.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, it should be understood that specific embodiment described herein is only used
In explaining the present invention, it is not intended to limit the present invention.
Present example: a kind of power load manages intelligent identifying system, including frequency selection circuit, the frequency selection circuit include
The active band-pass filter being made of integrated transporting discharging and RC network, the active band-pass filter are generated by nonlinear load
Harmonic wave, the harmonic wave that the nonlinear load generates all pass through switch operation and the diode, semiconductor die lock of semiconductor thyristor
The nonlinear characteristic of pipe generates.The source filter has amplification and buffer function concurrently, can be protruded arbitrarily using active filter
The signal of frequency and inhibit the generation of harmonic current number described in other frequency signal related to the umber of pulse of power converter,
The generation of harmonic current number and the umber of pulse of power converter are related, such as 6 pulsing units can only generate 5,7,11,13,17,
19 ... nth harmonic electric currents, the umber of pulse of power inverter is higher, and the number of the frequency of the harmonic component of most low order is higher, and
3 subharmonic currents by a relatively large margin can be generated for other non-linear devices, such as fluorescent lamp.Same nonlinear load generates humorous
Wave current amplitude reduces with the increase of overtone order.The centre frequency of the frequency selection circuit chooses 3 times, 5 subfrequencies, i.e.,
Choose 150Hz and 250Hz.
As shown in Figure 1, a kind of terminal based on power load management intelligent identifying system comprising power interface 1, electric current
Sensor 2, voltage sensor 3, A/D conversion module 4, communication module 7, relay control module 12, output socket 15；The end
End further includes frequency selective harmonic separation module 8, electric energy metering module 5, cpu load identification control module 6, the company of power interface 1
After connecing current sensor 2 and voltage sensor 3, while it being attached conversion with electric energy metering module 5, calculates power measurement,
Transformation result is input to cpu load identification control module 6, calculates newly-increased load electricity consumption and according to newly-increased load parameter to new
The property for increasing load electricity consumption is judged, then is mutually executed and controlled by cpu load identification control module 6, and with it is logical
Interrogate module transfer connection；The current sensor 2, voltage sensor 3 can also divide respectively during connecting electric energy metering module 5
It is connect all the way with into A/D conversion module 4 out；The current sensor 2 can also separate signal frequency-selecting harmonic wave separation mould all the way again
Block carries out frequency-selecting and isolates harmonic signal, after the harmonic signal amplification isolated, gives A/D conversion module 4 and carries out modulus turn
It changes, transformation result is input to cpu load identification control module 6, newly-increased load parameter is calculated, and join according to newly-increased load
Several properties to newly-increased load judge, then are executed and controlled by cpu load identification control module 6, and with communication mould
The connection transmission of block 7, cpu load identification control module 6 connect 12 with relay control module, relay control module 12 and
Output socket 15 connects.It is described it is newly-increased load refer to multiple terminal electrical equipments, wherein connect with terminal electrical equipment after
For electrical control module 12 at least provided with one, corresponding output socket can also be at least provided with one.Its terminal electrical equipment, it is all
Such as general electric appliance: immersion heater, electric cooker, insulating pot, micro-wave oven, hair dryer, electric blanket load.
As shown in Fig. 2, steps are as follows for a kind of internal operation based on power load management intelligent identifying system:
Step S100, user start to enable the terminal of power load management intelligent identifying system；Power load after starting
The system initialization of the terminal inner of intelligent identifying system is managed, system thresholds and history state are read.
For step S102 to step S106, system initialization starts the rear connecting test between communication module, if passes through communication
Request, communication module be responsible for is communicated with server, receive instruction, parameter, upload data, if communication request by if after
It is continuous to hold row system, it is interrupted if not passing through.
Step S108 to step S114, then whether had zero flag after seeing the lower interruption of inspection, it is in interrupt status, such as
Pass through during fruit multi-channel data acquisition, is just converted with the synchronous A/D conversion module in most 8 tunnels, frequency-selecting harmonic wave separation mould
Block acquires analogue data；Electric energy metering module is stored in buffer area from electric energy chip readout power, by result, and parameter is calculated according to number
According to calculating electrical energy parameter.
Step S116, cpu load controls current change quantity in the buffer area of identification module to be known to start cpu load control
Result is stored in buffer area at this time by increasing the property and watt level of load parameter judgement access load newly by other module；Judgement
The property and watt level of the newly-increased load of access.
Step S118, which controls identification module and connects conversion by relay control module.
Step S120, relay control module are connect with terminal electrical equipment, the terminal electrical equipment and the terminal system
Connection carries out the operation of above-mentioned steps again.
As shown in figure 3, a kind of terminal based on power load management intelligent identifying system builds system, including server
11, communication network 14, multiple terminal electrical equipments 13；The system further includes multiple electric loading management intelligent identifying system terminals
10, multiple concentrators 9, the server 11 passes through the connection of communication network 13 and multiple concentrators 9, the multiple concentrator 9
It manages intelligent identifying system terminal 10 with multiple electric loadings by communication network 12 to connect, the multiple electric loading management intelligence is known
Other system terminal 10 is connect with multiple terminal electrical equipments 12.Communication link between the server 11 and concentrator 9 be with
Power carrier, nothing may be selected by coupling for communication network with multiple terminal electrical equipments 13 in too net connection, the concentrator 9
Line, 485, any one mode communication modes of CAN bus carry out communication link.The electric loading manages intelligent identifying system terminal
10 pairs of multiple terminal electrical equipments 13 are identified, condition monitoring, judgement, control, and corresponding data are passed through communication
Network transmission is put into data on communication network to concentrator 9 by concentrator 9, is transferred to server 11 by communication network 14
Carry out data operation, analysis, judgement and storage.Electric loading management intelligent identifying system terminal 10 knows newly-increased load
, do not judge, control, and corresponding data by power carrier, wirelessly, 485, send concentrator in a manner of CAN bus etc., by collecting
Middle device 9 is put into data on network, carries out data operation, analysis, judgement and storage to server 11 by network transmission.Wherein
The newly-increased load includes multiple terminal electrical equipments 13, and multiple terminal electrical equipment 13 manages intelligent recognition with electric loading
System terminal 10 connects, this is built in system, concentrator, and power load manages between intelligent terminal 10 and terminal electrical equipment 13
Connection can be one to multiple, common transport carries out data operation, analysis, judgement and storage to server 11.
Following the present embodiment is a kind of intelligent identifying system and terminal managed based on power load and terminal build system into
One step explanation: in the present invention in power load management intelligent identifying system, the harmonic wave that nonlinear load generates all is by semiconductor
Thyristor switch operation and diode, semiconductor thyristor nonlinear characteristic caused by.The generation of harmonic current number with
The umber of pulse of power converter is related, and such as 6 pulsing units can only generate 5,7,11,13,17,19 ... nth harmonic electric currents, and power becomes
The umber of pulse of parallel operation is higher, and the number of the frequency of the harmonic component of most low order is higher, and for other non-linear devices, such as day
Light lamp can generate 3 subharmonic currents by a relatively large margin.The harmonic current that same nonlinear load generates is with overtone order
Increase and reduces.In conclusion the centre frequency of frequency selection circuit chooses 3 times, 5 subfrequencies, i.e. selection 150Hz and 250Hz.
It was verified that managing intelligent identifying system based on power load proposed by the present invention, on the basis of the present invention
Successfully have developed intelligent campus safety utilization of electric power observing and controlling and management system based on MSP430.This intelligent and safe power load is known
Other system has carried out quickly and accurately remained capacity in the campus dormitory operation phase, efficiently reduces erroneous judgement, fails to judge.Application practice
Show that this remained capacity system is simple and practical, is suitable for being embedded in Intelligent electricity use management system and promote.
Further, the terminal of power load management intelligent identifying system has collection power supply, control electricity, rations the power supply, meter reading, charging
Etc. functions, current sensor and voltage sensor output two-way output control circuit, can identify air-conditioning, illumination
The loads such as lamp, computer, washing machine, refrigerator, water dispenser are not controlled；But to general electric appliance: immersion heater, electric cooker, electricity
The load such as kettle, micro-wave oven, hair dryer, electric blanket, several seconds internal cutting off power supplys.If, can be with to the electric appliance being forbidden to use is included in
Restore normal use by way of registration.It can also distinguish between loadtype and size, and carry out alarm of transfiniting on this basis
And automatic forced power-off；Value is transfinited in 250W or more alarm and pressure power-off to the electrical appliance load forbidden, and to violating the regulations
Behavior carries out permanent historical record；Computer load or total load alarm and force outage threshold 350W and 5000W it
Between can arbitrarily set, total load be more than 5000W force disconnect power supply supply.This terminal is after identifying these electric appliances, Ke Yizhu
It is dynamic to cut off the power, and submit and record to server.After power-off, if user stops the use of violated electric appliance, power supply in time
Automatic after a few minutes to restore, otherwise continuous several times find that violated electric appliance does not disconnect yet after restoring power supply, then permanent shut-down power supply.
For the user of permanent shut-down, it is necessary to operate server end by administrator and restore electricity again.
Further, the system of building of the terminal of power load management intelligent identifying system can set whole terminal electricity consumptions
Detection can be individually set with selected part terminal and each terminal in standby, manage and control strategy, limit it and use power
Size, the range using electric appliance, time-division transfer connecting and disconnecting of the circuit function.The electricity charge can also be carried out by network to supplement with money in advance, use
It deducts fees in electric process by actual use kilowatt hour, supplements with money in advance after use, can be set and automatically power off or allow a certain amount of
Arrearage, and be applied to and the operating status of electrical equipment remotely monitored and detected, judge that electrical equipment operation is accordingly
It is no normal, by power carrier, Ethernet, it is wireless, 485, the multiple communication modes remote alarms such as CAN bus and controlled.
The effect that this discovery generates is as follows: 1, using hardware circuit, using comb filtering technology to fundamental wave in sampling load,
Harmonic parameters synchronize discretization, thus realize fundamental wave, harmonic parameters Fast synchronization measurement, thus using these parameters when
Become feature and carries out loadtype identification.The technology greatly reduces the burden of software algorithm, improves system response time；2, soft
Part algorithm: using the dispersion effect of different loads harmonic wave, the time varying characteristic of fundamental wave, harmonic parameters is used for the knowledge of loadtype
Not, erroneous judgement risk is greatly reduced；3, it registers electric appliance: in same type electric appliance load, utilizing different loads power, harmonic dispersion
The difference of effect establishes the registration table of limited quantity, can by filtered out in the load group for forbidding type allow using load；4,
Various electro-detection and measurements can be carried out to the electric appliance or electrical equipment by managing intelligent terminal by power load, utilize measurement
Various electricity consumptions out carry out judging the electric appliance or electrical equipment operating status, pass through a variety of communication network remote alarms or control；
With collection power supply, control electricity, ration the power supply, distinguish loadtype and size, and carry out transfiniting on this basis alarm and automatic forced it is disconnected
Electricity；5, the power load that power load management intelligent terminal builds system manages intelligent terminal after identifying electric appliance, Ke Yizhu
It is dynamic to cut off the power, and recorded to being submitted by module and server, prosecution and safety are improved, convenient for operation.It needs
, it is noted that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to allow be familiar with this skill
The personage of art cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.All bases
Equivalent change or modification made by spirit of the invention, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of power load manages intelligent terminal, including external power interface, current sensor, voltage sensor, A/D conversion
Module, communication module, relay control module, output socket；It is characterized by: the terminal further includes frequency-selecting harmonic wave separation mould
Block, electric energy metering module, cpu load identify the connection of control module and its terminal inner；The A/D conversion module has integrated
Multi-channel A/D；The communication module has the communication chip of low power consuming；The connection of the terminal inner include external power interface with
Current sensor, voltage sensor connection, the current sensor, voltage sensor and A/D conversion module, electric energy metering module
Connection, the current sensor connect with frequency selective harmonic separation module, the A/D conversion module, electric energy metering module respectively with
Cpu load identifies control module connection, and communication connection is transmitted between the cpu load identification control module and communication module, described
Cpu load identification control module is connect with relay control module, and relay control module connects output socket；
Wherein, it after the power interface connects current sensor and voltage sensor, while being attached with electric energy metering module
Conversion, calculates power measurement, and transformation result is input to cpu load identification control module, calculates newly-increased load electricity consumption simultaneously
Judged according to property of the newly-increased load parameter to newly-increased load electricity consumption, then phase is carried out by cpu load identification control module
It mutually executes and controls, and transmit and connect with communication module；
The current sensor separates signal frequency selective harmonic separation module all the way again and carries out frequency-selecting and isolate harmonic signal, separates
It after harmonic signal amplification out, gives A/D conversion module and carries out analog-to-digital conversion, transformation result is input to cpu load identification control
Molding block is calculated newly-increased load parameter, and is judged according to property of the newly-increased load parameter to newly-increased load, then by
Cpu load identification control module is executed and is controlled, and transmission is connect with communication module.
2. power load as described in claim 1 manages intelligent terminal, it is characterised in that: the cpu load identification control mould
Block is 8051 series, AVR series, MSP430 series or ARM series.
3. power load as described in claim 1 manages intelligent terminal, it is characterised in that: the external power interface connection electricity
After flow sensor, voltage sensor, while A/D conversion module conversion is carried out, cpu load identifies control module according to transformation result
It calculates electricity consumption and connect transmission with communication module.
4. power load as described in claim 1 manages intelligent terminal, it is characterised in that: the external power interface connection electricity
After flow sensor, voltage sensor, it is directly fed to electric energy metering module and carries out power measurement, the current sensor and voltage pass
The signal of sensor output also separates simultaneously is sent to A/D conversion module progress analog-to-digital conversion all the way.
5. power load as described in claim 1 manages intelligent terminal, it is characterised in that: the cpu load identification control mould
Block be calculated newly-increased power load parameter it is wrong when can back within electric energy metering module carry out power measurement.
6. power load as described in claim 1 manages intelligent terminal, it is characterised in that: the relay control module is equipped with
It is multiple, corresponding output socket be equipped with it is multiple, one of relay control module is connect with corresponding output socket, then
Connect terminal electrical equipment.
7. a kind of power load management intelligent terminal builds system, including server, communication network, multiple terminal electrical equipments；
It is characterized by: the system further includes that multiple such as power loads according to any one of claims 1 to 6 manage intelligent terminal,
Multiple concentrators and internal system transmission connection, internal system transmission connection include server by communication network with it is multiple
The connection of concentrator, the multiple concentrator manages intelligent terminal with multiple power loads by communication network and couples, described more
A power load management intelligent terminal is connect with multiple terminal electrical equipments.
8. power load management intelligent terminal as claimed in claim 7 builds system, it is characterised in that: the communication network packet
Include power carrier, wireless, 485, Ethernet, CAN bus multiple communication modes.
9. power load management intelligent terminal as claimed in claim 7 builds system, it is characterised in that: the server and collection
Communication link between middle device is Ethernet connection, the connection of the concentrator and multiple terminal electrical equipments be power carrier,
Wirelessly, 485, CAN bus communication link.
10. power load management intelligent terminal as claimed in claim 7 builds system, it is characterised in that: the power load
Management intelligent terminal identifies multiple terminal electrical equipments, condition monitoring, judgement, control, and corresponding data
It is transferred to concentrator by communication network, data are put on communication network by concentrator, is transferred to service by communication network
Device carries out data operation, analysis, judgement and storage.
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| CN201410508310.4A CN105529823B (en) | 2014-09-28 | 2014-09-28 | It is a kind of based on power load management identifying system terminal and terminal build system |
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| CN201410508310.4A CN105529823B (en) | 2014-09-28 | 2014-09-28 | It is a kind of based on power load management identifying system terminal and terminal build system |
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| CN105529823B true CN105529823B (en) | 2019-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292377A (en) * | 2016-09-29 | 2017-01-04 | 北京爱特通科技有限公司 | A kind of intelligent power counter device and energy-saving management system |
| CN107192872A (en) * | 2017-07-06 | 2017-09-22 | 苏州未来电器股份有限公司 | A kind of external breaker of load current detection circuit and electric energy meter |
| CN107340443A (en) * | 2017-07-20 | 2017-11-10 | 云南电网有限责任公司电力科学研究院 | A kind of method, apparatus and system of Intelligent Recognition electric loading |
| CN109428398A (en) * | 2017-09-01 | 2019-03-05 | 中国科学院沈阳自动化研究所 | A kind of industrial user's electricity consumption behavior acquisition device and method |
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