CN107329405A - A kind of Intelligent power saving system and its control method based on Internet of Things - Google Patents
A kind of Intelligent power saving system and its control method based on Internet of Things Download PDFInfo
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- CN107329405A CN107329405A CN201710673336.8A CN201710673336A CN107329405A CN 107329405 A CN107329405 A CN 107329405A CN 201710673336 A CN201710673336 A CN 201710673336A CN 107329405 A CN107329405 A CN 107329405A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 35
- 238000004134 energy conservation Methods 0.000 claims abstract description 9
- 230000008447 perception Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 35
- 238000005516 engineering process Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000013515 script Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/4186—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
Abstract
It is a kind of electrical equipment interacted system the present invention relates to a kind of Intelligent power saving system based on Internet of Things and its control method.The system, including several perception control elements, remote-wireless communication center module, remote-wireless communication submodule, user terminal, administration of energy conservation center；Control method, the data that remote-wireless communication submodule is sent are responsible for receiving and handled to remote-wireless communication center module, data of the user terminal further to receiving are handled and show related data, sent and instructed to terminal node by the wireless network, simultaneously also can receiving terminal node feeding back information, it is achieved thereby that two-way communication.The intelligentized control method of household electrical appliance is realized, stand-by power consumption is greatly reduced, energy-saving efficiency is improved so that life staying idle at home is more convenient, safe, comfortable, energy-conservation.
Description
Technical field
It is that a kind of electrical equipment is mutually contacted the present invention relates to a kind of Intelligent power saving system based on Internet of Things and its control method
System.
Background technology
Electric energy is a kind of high-quality, efficient, cleaning, the easily energy, is current most important, most widely used energy form
One of.The production and living of the mankind, the progress in the world all be unable to do without electric energy.Nowadays, energy scarcity problem is paid close attention to as various countries
Focus, economize on electricity nature has been swung to prominent important position.National governments launch respectively corresponding policies and measures, advocate economize on electricity
The new custom of energy-conservation, and actively encourage the developmental research of various power-saving techniques to work.China the electricity consumption energy once
40% or so is accounted in the energy, power generation and heat supply accounts for 50% or so of national consumption of coal, national major pollutants titanium dioxide with coal
In the discharge capacity of sulphur, electric power accounts for 50% or so.Therefore, save electric energy has extremely strong realistic meaning and urgency in China.
At present, global many countries and regions, technology of Internet of things and power-saving technology all applied it is quite varied.But
By technology of Internet of things and industrial equipment energy conserving system be integrated, system and few that is combining industrial equipment administration of energy conservation with control
See.Motor is the driving equipment of most industrial equipments, in enterprise automation production process, and equipment is normally run to safety
Production and economic benefit have especially important meaning.Because the failure of single device often influences the suitable of whole production process
Profit is carried out, and causes huge economic loss, or even causes serious accident, therefore, the monitoring running state of production equipment
Processing and protection production normal to enterprise with abnormality is most important.Motor product is widely used simultaneously, greatly
The progress of human society has been promoted, but also consumes the substantial amounts of energy simultaneously, environment is seriously polluted.United according to pertinent literature
Meter, annual 50% electricity in the whole world is all electrical consumption, and China is backward in technique due to motor power saving, and this ratio can reach
60-70%.
The content of the invention
Present invention aims at providing one kind to can solve the problem that the above-mentioned problems in the prior art, devise one kind and be based on
The Intelligent power saving system and its control method of Internet of Things, can reach good power savings.
The object of the invention is achieved through the following technical solutions：
A kind of Intelligent power saving system based on Internet of Things, it is characterized in that, including：
Several perceive control element, for receiving user terminal appliance applications contextual data information, or carry out directly regulation control；
Remote-wireless communication center module and several remote-wireless communication submodule, described remote-wireless communication
Each perceives control element for submodule correspondence communication connection, and remote-wireless communication center module receives remote-wireless communication
Data message that module is transmitted simultaneously is handled；
User terminal, the data for receiving remote-wireless communication center module are handled and show related data；
Administration of energy conservation center, the data of each remote-wireless communication center module are collected by internet.
Preferably, described perception control element includes：Electric motor saver, controls to adjust the voltage of motor side, realizes
Quick, stable regulation to electric moter voltage, reaches the purpose for improving electric efficiency, saving electric energy；Electric energy calculator, for connecing
Energy data information is received, energy information is gathered；Temperature sensor, for collecting temperature information, detects indoor temperature, judges whether
Temperature requirement is met, cut-offs to adjust temperature if being unsatisfactory for can control air-conditioning；Infrared inductor, in dynamic sensing room
Activity, realizes security protection requirement；Controlling switch, for closing or disconnecting user terminal electrical equipment, to reach that control socket is powered
Whether, so that the break-make of household electrical appliances is controlled, being electrically cut off in standby family, so as to reduce stand-by power consumption.
Preferably, described electric motor saver include being connected to the motor on power network line, the economize on electricity with power supply it is micro-
Processor, protection circuit, IGCT, controllable trigger circuit, voltage x current zero cross detection circuit and voltage x current sample circuit,
Protection circuit and IGCT are concatenated between power network line and motor；The IGCT passes through voltage electricity by protection circuit side circuit
Flow zero cross detection circuit connection economize on electricity microprocessor；The IGCT is connected by motor side circuit by voltage x current sample circuit
Connect economize on electricity microprocessor；Described economize on electricity microprocessor controls the electricity at IGCT regulation motor end by controllable trigger circuit
Pressure.Quick, the stable regulation to electric moter voltage is realized, the purpose for improving electric efficiency, saving electric energy is reached.
Preferably, described electric energy calculator is electrically connected with economize on electricity microprocessor.Can measure motor it is each mutually and
Active power, reactive power, apparent energy, active energy and the quadergy of phase are closed, while each phase current, electricity can also be measured
The parameters such as valid value, power factor, phase angle, frequency are pressed with, current electrical parameter is monitored in real time, Various types of data can be stored, also
The network terminal can be uploaded to by wireless communication module.
Preferably, described controllable trigger circuit includes photoelectrical coupler, drive circuit and the trigger being sequentially connected.
Control signal is sent through optocoupler, driving, trigger, the angle of flow of IGCT is controlled, so as to change motor stator voltage.
Preferably, described motor is threephase asynchronous machine；Described economize on electricity microprocessor is single-chip microcomputer or ARM cores
Piece.Electric moter voltage optimal adjustment is constituted, completes to differentiate the detection of motor instantaneous power, data calculating processing, fuzzy analysis.
Preferably, wireless between described remote-wireless communication center module and remote-wireless communication submodule
Communication is realized based on ZigBee technology.
Preferably, remote-wireless communication center module is the ARM9 chips for being integrated with ZigBee technology, described is remote
It is the SOC for being integrated with ZigBee technology apart from wireless telecommunications submodule.
A kind of control method according to the above-mentioned Intelligent power saving system based on Internet of Things, it is characterized in that, remote-wireless
The data that remote-wireless communication submodule is sent are responsible for receiving and handled to communication center module, and user terminal is further to receiving
Data handled and show related data, when the state for monitoring thing occurs abnormal, send alarm；Remote-wireless is communicated
Center module and remote-wireless communication submodule are by ZigBee wireless communication connections, by the wireless network to terminal section
Point send instruction, while also can receiving terminal node feeding back information, it is achieved thereby that two-way communication.
Preferably, reaching that whether control socket is powered by the closure of controlling switch；Detected by temperature sensor
Indoor temperature；Safety monitoring is realized by infrared inductor；Pass through electric motor saver, controlled motor energy conservation；Pass through electric energy
Calculator gathers energy information.
The technical program has advantages below：This product is applied realizes the intelligent control of household electrical appliance in house system
System, greatly reduces stand-by power consumption, improves energy-saving efficiency so that life staying idle at home is more convenient, safe, comfortable, energy-conservation；And
ZigBee wireless communication technologys and ARM make it that whole house system wiring is simple, fit up and safeguard simple；Meanwhile, based on Internet of Things
Technology and power-saving technology, with reference to China's motor features, design a kind of electrical machine energy-saving management system based on Internet of Things come comprehensive
Close and improve key industry motor operation efficiency, realize that resource circulation utilization is maximized, there is great economic benefit and social benefit；
This product has the function of wireless telecommunications, can integrate the independent data parameters of all kinds of scripts and be uploaded to the network terminal.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that drawings in the following description are only this hair
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the system schematic of the present embodiment.
Fig. 2 is the structural representation of the present embodiment electric motor saver
Fig. 3 is the structural representation of controllable trigger circuit in Fig. 2.
Label declaration：Remote-wireless communication center module 1, remote-wireless communication submodule 2, user terminal 3, energy-conservation
Administrative center 4, electric motor saver 5, electric energy calculator 6, temperature sensor 7, infrared inductor 8, controlling switch 9；
Power network line 51, motor 52, power supply 53, economize on electricity microprocessor 54, protection circuit 55, IGCT 56, controllable trigger circuit
57th, photoelectrical coupler 571, drive circuit 572, trigger 573, voltage x current zero cross detection circuit 58, voltage x current sampling electricity
Road 59.
Embodiment
Illustrate the present invention below in conjunction with specific embodiment, the following example is merely to illustrate technical scheme,
Do not limit protection scope of the present invention.
Embodiment one：
As Figure 1-3, the product of the present embodiment is a kind of Intelligent power saving system based on Internet of Things, including：
Several perceive control element, for receiving user terminal appliance applications contextual data information, or carry out directly regulation control；
Remote-wireless communication center module 1 and several remote-wireless communication submodule 2, remote-wireless communication submodule
Each perceives control element for the correspondence communication of block 2 connection, and remote-wireless communication center module 1 receives remote-wireless communication submodule
Data message that block 2 is transmitted simultaneously is handled；
User terminal 3 is a kind of personal electric energy with display screen, and the data for receiving remote-wireless communication center module 1 are carried out
Handle and show related data；
Administration of energy conservation center 4, the data of each remote-wireless communication center module 1 are collected by internet.
The perception control element of the present embodiment includes：Electric motor saver 5, controls to adjust the voltage at the end of motor 52, realization pair
Quick, the stable regulation of the voltage of motor 52, reaches the purpose for improving the efficiency of motor 52, saving electric energy；Electric energy calculator 6, is used
In receiving energy data information, energy information is gathered；Temperature sensor 7, for collecting temperature information, detects indoor temperature, sentences
It is disconnected whether to meet temperature requirement, cut-off to adjust temperature if being unsatisfactory for can control air-conditioning；Infrared inductor 8, for dynamic
Indoor activity is perceived, security protection requirement is realized；Controlling switch 9, for closing or disconnecting user terminal electrical equipment, to reach control
Whether socket is powered, so that the break-make of household electrical appliances is controlled, being electrically cut off in standby family, so as to reduce stand-by power consumption.
The electric motor saver 5 of the present embodiment includes being connected to the motor 52 on power network line 51, the economize on electricity with power supply 53
Microprocessor 54, protection circuit 55, IGCT 56, controllable trigger circuit 57, voltage x current zero cross detection circuit 58 and voltage electricity
Sample circuit 59 is flowed, protection circuit 55 and IGCT 56 are concatenated between power network line 51 and motor 52；IGCT 56 is by protection
The side circuit of circuit 55 passes through the connection economize on electricity microprocessor 54 of voltage x current zero cross detection circuit 58；IGCT 56 leans on motor 52 1
Side line road passes through the connection economize on electricity microprocessor 54 of voltage x current sample circuit 59；Economize on electricity microprocessor 54 passes through controllable trigger circuit
57 control the voltage at the end of 56 regulation motor of IGCT 52.Quick, the stable regulation to the voltage of motor 52 is realized, raising is reached
The efficiency of motor 52, the purpose for saving electric energy.
The electric energy calculator 6 of the present embodiment is electrically connected with economize on electricity microprocessor 54.Can measure motor 52 it is each mutually and
Active power, reactive power, apparent energy, active energy and the quadergy of phase are closed, while each phase current, electricity can also be measured
The parameters such as valid value, power factor, phase angle, frequency are pressed with, current electrical parameter is monitored in real time, Various types of data can be stored, also
Energy data can be uploaded to remote-wireless communication submodule 2.It is each that electric energy calculator 6 in the present embodiment is additionally operable to collection
The energy information of individual electric equipment, is that Energy Conservation is supported for data.
The controllable trigger circuit 57 of the present embodiment includes the photoelectrical coupler 571, drive circuit 572 and triggering being sequentially connected
Device 573.Control signal is sent through optocoupler, driving, trigger 573, the angle of flow of IGCT 56 is controlled, determined so as to change motor 52
Sub- voltage.
The motor 52 of the present embodiment is threephase asynchronous machine 52；The microprocessor 54 that economizes on electricity is single-chip microcomputer or ARM chips.Composition
The voltage optimal adjustment of motor 52, completes to differentiate the detection of the instantaneous power of motor 52, data calculating processing, fuzzy analysis.
The voltage of motor 52, current effective value can obtain by the detection to motor 52, further through voltage zero-cross, current over-zero
Circuit can obtain the power factor of motor 52, so as to calculate the active power of motor 52.By economizing on electricity, microprocessor 54 is controlled
Computing obtains the corresponding angle of flow of IGCT 56 output, then sends control signal through optocoupler, drive circuit 572, controls IGCT
56 angle of flow, so as to change the stator voltage of motor 52, realizes quick, the stable regulation to the voltage of motor 52, reaches raising
The efficiency of motor 52, the purpose for saving electric energy.
Channel radio between remote-wireless communication center module 1 and remote-wireless the communication submodule 2 of the present embodiment
News are realized based on ZigBee technology；Remote-wireless communication center module 1 is the ARM9 chips for being integrated with ZigBee technology, institute
The remote-wireless communication submodule 2 stated is the SOC for being integrated with ZigBee technology.
Embodiment two：
A kind of control method according to the above-mentioned Intelligent power saving system based on Internet of Things, remote-wireless communication center module 1
It is responsible for receiving and processing remote-wireless communicates the data that submodule 2 is sent, user terminal 3 is further carried out to the data of receiving
Handle and show related data, when the state for monitoring thing occurs abnormal, send alarm；Remote-wireless communication center module 1
It is, by ZigBee wireless communication connections, to be sent by the wireless network to terminal node with remote-wireless communication submodule 2
Instruction, at the same also can receiving terminal node feeding back information, it is achieved thereby that two-way communication.
The present embodiment reaches that whether control socket is powered by the closure of controlling switch 9；Detected by temperature sensor 7
Indoor temperature；Safety monitoring is realized by infrared inductor 8；Pass through electric motor saver 5, the energy conservation of controlled motor 52；Pass through
Electric energy calculator 6 gathers energy information.
This product can monitor the service condition and power consumption of household electrical appliances well（Including motor electricity）Real-time Feedback.
The control interface that user passes through user terminal, you can realize the real-time monitoring and control to household electrical appliances, can clearly understand household electrical appliances
Running situation.User can read indoor temperature from display screen, and the system can automatically adjust room temperature and maintain it
Within the scope of one pleasant；The break-make of household electrical appliance very easily can be directly controlled, electromechanics is treated for no
Device, can facilitate user, reduces stand-by power consumption by voluntarily being turned off after judgement；User's voltage x current can be monitored in real time,
And judge whether to meet safety standard, can provide alarm beyond safety value, and together with electricity one piece be shown in the aobvious of user terminal
In display screen, enable users to understand electricity consumption and security situation in real time；Electricity can also send alarm when beyond certain limit, remind and use
Economize on electricity at family.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Title etc. can be different.The equivalent or simple change that all construction, feature and principles according to described in inventional idea of the present invention are done, is wrapped
Include in the protection domain of patent of the present invention.Those skilled in the art can be to described specific implementation
Example is made various modifications or supplement or substituted using similar mode, structure without departing from the present invention or surmounts this
Scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of Intelligent power saving system based on Internet of Things, it is characterized in that, including：
Several perceive control element, for receiving user terminal appliance applications contextual data information, or carry out directly regulation control；
Remote-wireless communication center module and several remote-wireless communication submodule, described remote-wireless communication
Each perceives control element for submodule correspondence communication connection, and remote-wireless communication center module receives remote-wireless communication
Data message that module is transmitted simultaneously is handled；
User terminal, the data for receiving remote-wireless communication center module are handled and show related data；
Administration of energy conservation center, the data of each remote-wireless communication center module are collected by internet.
2. the Intelligent power saving system according to claim 1 based on Internet of Things, it is characterized in that, described perception control member
Part includes：Electric motor saver, controls to adjust the voltage of motor side；Electric energy calculator, for receiving energy data information；Temperature is passed
Sensor, for collecting temperature information；Infrared inductor, for dynamic sensing indoor activity；Controlling switch, for closing or breaking
Open user terminal electrical equipment.
3. the Intelligent power saving system according to claim 2 based on Internet of Things, it is characterized in that, described electric motor saver bag
Include the motor being connected on power network line, the economize on electricity microprocessor with power supply, protection circuit, IGCT, controllable trigger circuit,
Voltage x current zero cross detection circuit and voltage x current sample circuit, concatenate protection circuit and brilliant lock between power network line and motor
Pipe；The IGCT passes through voltage x current zero cross detection circuit connection economize on electricity microprocessor by protection circuit side circuit；It is described
IGCT passes through voltage x current sample circuit connection economize on electricity microprocessor by motor side circuit；Described economize on electricity microprocessor leads to
Controllable trigger circuit is crossed to control the voltage at IGCT regulation motor end.
4. the Intelligent power saving system according to claim 3 based on Internet of Things, it is characterized in that, described electric energy calculator with
The microprocessor that economizes on electricity is electrically connected.
5. the Intelligent power saving system according to claim 3 based on Internet of Things, it is characterized in that, described controllable trigger circuit
Including the photoelectrical coupler, drive circuit and trigger being sequentially connected.
6. the Intelligent power saving system according to claim 3 based on Internet of Things, it is characterized in that, described motor is different for three
Walk motor；Described economize on electricity microprocessor is single-chip microcomputer or ARM chips.
7. the Intelligent power saving system according to claim 1 based on Internet of Things, it is characterized in that, described remote-wireless leads to
Wireless telecommunications between news center module and remote-wireless communication submodule are realized based on ZigBee technology.
8. the Intelligent power saving system according to claim 7 based on Internet of Things, it is characterized in that, remote-wireless communication center
Module is the ARM9 chips for being integrated with ZigBee technology, and described remote-wireless communication submodule is to be integrated with ZigBee technology
SOC.
9. a kind of control method of Intelligent power saving system based on Internet of Things according to claim 1-8 any one, its
It is characterized in that the data that remote-wireless communication submodule is sent are responsible for receiving and handled to remote-wireless communication center module, uses
Data of the family terminal further to receiving are handled and show related data, when the state for monitoring thing occurs abnormal, are sent
Alarm；It is, by ZigBee wireless communication connections, to lead to that remote-wireless communication center module and remote-wireless, which communicate submodule,
Cross the wireless network to terminal node send instruct, while also can receiving terminal node feeding back information, it is achieved thereby that two-way
Communication.
10. the control method of the Intelligent power saving system according to claim 9 based on Internet of Things, it is characterized in that, pass through control
The closure of switch is made to reach that whether control socket is powered；Indoor temperature is detected by temperature sensor；Pass through infrared inductor
Realize safety monitoring；Pass through electric motor saver, controlled motor energy conservation；Energy information is gathered by electric energy calculator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710673336.8A CN107329405A (en) | 2017-08-09 | 2017-08-09 | A kind of Intelligent power saving system and its control method based on Internet of Things |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947154A (en) * | 2017-11-10 | 2018-04-20 | 北京世纪航凯电力科技股份有限公司 | Internet of Things intelligent energy-saving electric appliance |
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| CN207020483U (en) * | 2017-08-09 | 2018-02-16 | 浙江伯飞节能科技有限公司 | A kind of Intelligent power saving system based on Internet of Things |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947154A (en) * | 2017-11-10 | 2018-04-20 | 北京世纪航凯电力科技股份有限公司 | Internet of Things intelligent energy-saving electric appliance |
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