CN109347210A - Accommodation electricity usage wisdom control system - Google Patents

Accommodation electricity usage wisdom control system Download PDF

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Publication number
CN109347210A
CN109347210A CN201811467957.1A CN201811467957A CN109347210A CN 109347210 A CN109347210 A CN 109347210A CN 201811467957 A CN201811467957 A CN 201811467957A CN 109347210 A CN109347210 A CN 109347210A
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CN
China
Prior art keywords
cpu
load
power
relay
wisdom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811467957.1A
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Chinese (zh)
Inventor
魏福道
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Anhui Allied Power Technology Co Ltd
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Anhui Allied Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Allied Power Technology Co Ltd filed Critical Anhui Allied Power Technology Co Ltd
Priority to CN201811467957.1A priority Critical patent/CN109347210A/en
Publication of CN109347210A publication Critical patent/CN109347210A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/0006Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network for single frequency AC networks
    • H02J13/0013Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network for single frequency AC networks characterised by transmission structure between the control or monitoring unit and the controlled or monitored unit
    • H02J13/0017Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network for single frequency AC networks characterised by transmission structure between the control or monitoring unit and the controlled or monitored unit with direct transmission between the control or monitoring unit and the controlled or monitored unit
    • H02J13/0075Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network for single frequency AC networks characterised by transmission structure between the control or monitoring unit and the controlled or monitored unit with direct transmission between the control or monitoring unit and the controlled or monitored unit using radio means
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems 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
    • Y04S40/12Systems 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
    • Y04S40/126Systems 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

Abstract

The invention discloses a kind of accommodation electricity usage wisdom control systems, including big data cloud platform, communication manager and multiple wisdom controlling terminals corresponded for dormitory, wherein wisdom controlling terminal includes CPU, electric signal sampling module, relay control module, relay, communication module, relay controls power supply line's on-off, CPU controls the actuating of relay by relay control module, electric signal sampling module sampled signal is sent into CPU, CPU communication terminal passes through communication module, communication manager and big data cloud platform communication connection, CPU is based on payload in each wisdom controlling terminal and load character controls the actuating of relay.The present invention has the advantages that intelligence is reliable, accommodation electricity usage security risk can be effectively reduced, and can save electric power resource, administrative staff is facilitated remotely to monitor the electricity consumption situation of dormitory.

Description

Accommodation electricity usage wisdom control system
Technical field
The present invention relates to power consumption control system regions, specifically a kind of accommodation electricity usage wisdom control system.
Background technique
With the development of society, the electric appliance type in Public Quarters is more and more, Electrical Safety problem is also increasingly severeer, Personnel there are problems that using, using immersion heater, there are serious security risks in disabling electric appliance, such as campus dormitory in dormitory.
Currently, mainly still patrolling by manpower for the supervision for disabling electric appliance.Due to some disabling electric appliances are cheap, It is easy to hiding, therefore there is a problem of that management difficulty is big for the manpower pipeline of these disabling electric appliances, the side patrolled by manpower Formula also will increase management cost.Meanwhile it can not also solve the problems, such as that dormitory personnel modify circuit privately, can also by manpower inspection Dormitory personnel are made to generate resentment.
Summary of the invention
The object of the present invention is to provide a kind of accommodation electricity usage wisdom control systems, are patrolled with solving the prior art by manpower Mode supervise electric appliance use there are the problem of.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
Accommodation electricity usage wisdom control system, it is characterised in that: including big data cloud platform, communication manager and multiple one A pair is applied to the wisdom controlling terminal of dormitory, and wherein wisdom controlling terminal includes CPU, electric signal sampling module, relay control Molding block, relay, communication module, wherein relay is accessed into the power supply line that corresponding dormitory is powered to control power supply line On-off, relay control module output end and relay control connect, and relay control module input terminal and CPU output end connect It connects, electric signal sampling module input terminal is connect with sampled voltage, current signal, electric signal sampling module output end with power supply line It is connect with CPU input terminal, CPU communication terminal is connect with communication module;CPU passes through company of respective institute respectively in multiple wisdom controlling terminals The communication module and communication manager communication connection connect, communication manager and big data cloud platform communication connection;
In each wisdom controlling terminal, voltage, the current signal of electric signal sampling module acquisition are respectively fed to CPU, and CPU pairs Voltage, current signal carry out the load power that dormitory is calculated, while CPU handles voltage, current signal and obtains respectively Judge the load character of dormitory for inductive load or resistive load to the phase angle of voltage, current signal, and according to phase angle;
Load power first threshold, the load power that CPU will be calculated are set in each wisdom controlling terminal in CPU It is compared with load power first threshold, if the load power being calculated is greater than load power first threshold, CPU is to relay Device control module sends control signal, and control relay disconnection makes power supply line after relay control module receives control signal; If the load power being calculated be less than load power first threshold, and the load character of dormitory be resistive load, then CPU to after Electrical control module sends control signal, and control relay disconnection makes supply lines after relay control module receives control signal Road;If the load power being calculated is less than load power first threshold, and the load character of dormitory is inductive load, relay Power supply line's connection is kept, dormitory normal power supply defines the normal duty power for the load power being calculated at this time;
Meanwhile the normal duty power is respectively fed to communicate by CPU by communication module in each wisdom controlling terminal Supervisor, and normal duty power in each wisdom controlling terminal is uploaded to big data cloud platform by communication manager, big number Historical time section statistics is carried out according to normal duty power of the cloud platform to the corresponding wisdom controlling terminal of each dormitory to calculate, and is obtained The normal duty power average value of each dormitory history each period, big data platform will be calculated by communication manager Each each period normal duty power average value of dormitory history is respectively fed to corresponding wisdom controlling terminal, wisdom controlling terminal Middle CPU is using each period normal duty power average value of each dormitory history as the first threshold of load power of corresponding period Value.
The accommodation electricity usage wisdom control system, it is characterised in that: in the wisdom controlling terminal, be additionally provided in CPU Time threshold, the load power being calculated is compared by CPU with load power first threshold, if calculating in time threshold Obtained load power is consistently greater than load power first threshold, then CPU sends control signal, relay to relay control module Control relay disconnection makes power supply line after device control module receives control signal;If the load being calculated in time threshold Then power deteriorates to less than load power first threshold, then CPU judges dormitory again in load power first threshold is first greater than again Load character be resistive load or inductive load, if resistive load then CPU to relay control module send control letter Number, control relay disconnection makes power supply line after relay control module receives control signal;If inductive load then relay Keep power supply line's connection.
The accommodation electricity usage wisdom control system, it is characterised in that: one day is divided by the big data cloud platform Multiple periods, the normal duty power average value that big data platform calculates history N days each corresponding periods before the same day are made For each period normal duty power average value of history, big data platform history each period normally being born one day after on the day of Lotus power average value is respectively fed to the CPU of each wisdom controlling terminal, and the CPU of each wisdom controlling terminal is one day after with history Load power first threshold of each period normal duty power average value as the corresponding period.
The accommodation electricity usage wisdom control system, it is characterised in that: further include cell phone application, and be correspondingly arranged at each The two dimensional code of wisdom controlling terminal, cell phone application and big data cloud platform communication connection, cell phone application pass through mobile phone hardware scanning two Code is tieed up to identify corresponding wisdom controlling terminal, after identifying corresponding wisdom controlling terminal by cell phone application, to big data cloud platform The control instruction for controlling corresponding wisdom controlling terminal is sent, generation command adapted thereto is sent into after big data cloud platform receives control instruction The CPU of corresponding wisdom controlling terminal passes through relay control module after receiving instruction by the CPU of corresponding wisdom controlling terminal Control the actuating of relay.
The accommodation electricity usage wisdom control system, it is characterised in that: in the wisdom controlling terminal, be additionally provided in CPU Load power second threshold, load power second threshold are less than load power first threshold, the load power that CPU will be calculated It is compared respectively with load power first threshold, load power second threshold, if the load power being calculated is greater than load Power second threshold and it is less than load power first threshold, then CPU sends alarm command to big data cloud platform, and big data cloud is flat Platform generates corresponding instruction feeding cell phone application after receiving alarm command, and cell phone application is alarmed after receiving instruction.
Judge dormitory electric appliance behaviour in service the present invention is based on payload and load character, and based on judging result by after The on-off of electrical equipment control power supply line has the advantages that intelligence is reliable, solves the problems, such as that manpower inspection exists, can be effectively reduced Accommodation electricity usage security risk.
The present invention is based on big data platforms simultaneously carries out statistics calculating to historical data, to correct judgment criteria, energy in real time Enough effectively save electric power resources, can also realize long-range management and monitoring using big data platform, administrative staff is facilitated remotely to monitor The electricity consumption situation of dormitory.
Detailed description of the invention
Fig. 1 is present system topological diagram.
Fig. 2 is the structural block diagram of wisdom controlling terminal of the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1 and Figure 2, accommodation electricity usage wisdom control system, including big data cloud platform, communication manager and more A to correspond the wisdom controlling terminal for being used for dormitory, wherein wisdom controlling terminal includes CPU, electric signal sampling module, relay Device control module, relay, communication module, wherein relay is accessed into the power supply line that corresponding dormitory is powered to control power supply Circuit on-off, relay control module output end and relay control connect, relay control module input terminal and CPU output end Connection, electric signal sampling module input terminal are connect with sampled voltage, current signal, the output of electric signal sampling module with power supply line End is connect with CPU input terminal, and CPU communication terminal is connect with communication module;CPU passes through respective institute respectively in multiple wisdom controlling terminals The communication module and communication manager communication connection of connection, communication manager and big data cloud platform communication connection;
In each wisdom controlling terminal, voltage, the current signal of electric signal sampling module acquisition are respectively fed to CPU, and CPU pairs Voltage, current signal carry out the load power that dormitory is calculated, while CPU handles voltage, current signal and obtains respectively Judge the load character of dormitory for inductive load or resistive load to the phase angle of voltage, current signal, and according to phase angle;
Load power first threshold, the load power that CPU will be calculated are set in each wisdom controlling terminal in CPU It is compared with load power first threshold, if the load power being calculated is greater than load power first threshold, CPU is to relay Device control module sends control signal, and control relay disconnection makes power supply line after relay control module receives control signal; If the load power being calculated be less than load power first threshold, and the load character of dormitory be resistive load, then CPU to after Electrical control module sends control signal, and control relay disconnection makes supply lines after relay control module receives control signal Road;If the load power being calculated is less than load power first threshold, and the load character of dormitory is inductive load, relay Power supply line's connection is kept, dormitory normal power supply defines the normal duty power for the load power being calculated at this time;
Meanwhile the normal duty power is respectively fed to communicate by CPU by communication module in each wisdom controlling terminal Supervisor, and normal duty power in each wisdom controlling terminal is uploaded to big data cloud platform by communication manager, big number Historical time section statistics is carried out according to normal duty power of the cloud platform to the corresponding wisdom controlling terminal of each dormitory to calculate, and is obtained The normal duty power average value of each dormitory history each period, big data platform will be calculated by communication manager Each each period normal duty power average value of dormitory history is respectively fed to corresponding wisdom controlling terminal, wisdom controlling terminal Middle CPU is using each period normal duty power average value of each dormitory history as the first threshold of load power of corresponding period Value.
In wisdom controlling terminal, it is additionally provided with time threshold in CPU, CPU is by the load power being calculated and load power First threshold is compared, if the load power being calculated in time threshold is consistently greater than load power first threshold, CPU sends control signal to relay control module, and control relay disconnection makes after relay control module receives control signal Power supply line;If then the load power being calculated in time threshold declines again in load power first threshold is first greater than To less than load power first threshold, then CPU judges the load character of dormitory for resistive load or inductive load, if resistance again Property load then CPU to relay control module send control signal, relay control module receive control signal after control relay Device disconnection makes power supply line;If then relay keeps power supply line's connection to inductive load.
Big data cloud platform was divided into multiple periods for one day, and history N days before the big data platform calculating same day are each As each period normal duty power average value of history, big data platform exists the normal duty power average value of corresponding period The CPU that each period normal duty power average value of history is respectively fed to each wisdom controlling terminal one day after on the same day, respectively The CPU of a wisdom controlling terminal is negative using each period normal duty power average value of history as the corresponding period one day after Lotus power first threshold.
The invention also includes cell phone applications, and are correspondingly arranged at the two dimensional code of each wisdom controlling terminal, cell phone application and big Data cloud platform communication connection, cell phone application are scanned the two-dimensional code by mobile phone hardware to identify corresponding wisdom controlling terminal, by hand After machine APP identifies corresponding wisdom controlling terminal, the control for sending the corresponding wisdom controlling terminal of control to big data cloud platform refers to It enables, big data cloud platform generates the CPU that command adapted thereto is sent into corresponding wisdom controlling terminal after receiving control instruction, by corresponding The actuating of relay is controlled by relay control module after the CPU reception instruction of wisdom controlling terminal.
Load power second threshold is additionally provided in wisdom controlling terminal, in CPU, load power second threshold is less than load function Rate first threshold, CPU carry out the load power being calculated with load power first threshold, load power second threshold respectively Compare, if the load power being calculated is greater than load power second threshold and is less than load power first threshold, CPU is to big Data cloud platform sends alarm command, and cell phone application, hand are sent into the corresponding instruction of generation after big data cloud platform receives alarm command Machine APP alarms after receiving instruction.
In the present invention, communication manager selects the central processing unit of model RDZ9220-MY, CPU in wisdom controlling terminal The controller of model STM32F417VGT6 is selected, electrical signal collection module is the equipment of collection voltages and current signal, wherein The voltage transformer of the equipment choosing model HPT225A of collection voltages signal, acquires the equipment choosing model of current signal The RCT type current transformer of RCT-K01, relay control module select the electric controller of model DSP2A-DC24V, communicate mould The communication chip of block selection model IS03082DWR.
Voltage transformer, current transformer in electrical signal collection module are respectively connected in power supply line with collection voltages electricity Flow signal, electrical signal collection module connect with the signal input port of CPU in wisdom controlling terminal, CPU pass through PORT COM and Communication module connection, the signal output port of CPU and the signal input port of relay control module connect, wisdom controlling terminal In communication module connect with communication manager by RS485 communication interface, communication manager is based on DL/T 634.5.104- 2002 telecontrol communication specifications and big data cloud platform communication connection.

Claims (5)

1. accommodation electricity usage wisdom control system, it is characterised in that: including big data cloud platform, communication manager and it is multiple one by one To the wisdom controlling terminal for being applied to dormitory, wherein wisdom controlling terminal includes CPU, electric signal sampling module, relay control Module, relay, communication module, wherein relay accesses logical to control power supply line into the power supply line that corresponding dormitory is powered Disconnected, relay control module output end and relay control connect, and relay control module input terminal is connect with CPU output end, Electric signal sampling module input terminal is connect with sampled voltage, current signal with power supply line, electric signal sampling module output end with The connection of CPU input terminal, CPU communication terminal are connect with communication module;CPU passes through respectively in multiple wisdom controlling terminals is respectively connected Communication module and communication manager communication connection, communication manager and big data cloud platform communication connection;
In each wisdom controlling terminal, voltage, the current signal of electric signal sampling module acquisition are respectively fed to CPU, and CPU is to electricity Pressure, current signal carry out the load power that dormitory is calculated, while CPU carries out processing to voltage, current signal and respectively obtains The phase angle of voltage, current signal, and judge the load character of dormitory for inductive load or resistive load according to phase angle;
Load power first threshold is set in each wisdom controlling terminal in CPU, CPU is by the load power being calculated and bears Lotus power first threshold is compared, if the load power being calculated is greater than load power first threshold, CPU is to relay control Molding block sends control signal, and control relay disconnection makes power supply line after relay control module receives control signal;If meter Obtained load power is less than load power first threshold, and the load character of dormitory is resistive load, then CPU is to relay Control module sends control signal, and control relay disconnection makes power supply line after relay control module receives control signal;If The load power being calculated is less than load power first threshold, and the load character of dormitory is inductive load, and relay is kept Power supply line's connection, dormitory normal power supply define the normal duty power for the load power being calculated at this time;
Meanwhile the normal duty power by communication module is respectively fed to communication management by CPU in each wisdom controlling terminal Machine, and normal duty power in each wisdom controlling terminal is uploaded to big data cloud platform, big data cloud by communication manager Platform carries out historical time section statistics to the normal duty power of the corresponding wisdom controlling terminal of each dormitory and calculates, and obtains each The normal duty power average value of dormitory history each period, big data platform each of will be calculated by communication manager Each period normal duty power average value of dormitory history is respectively fed to corresponding wisdom controlling terminal, in wisdom controlling terminal CPU is using each period normal duty power average value of each dormitory history as the load power first threshold of corresponding period.
2. accommodation electricity usage wisdom control system according to claim 1, it is characterised in that: in the wisdom controlling terminal, Time threshold is additionally provided in CPU, the load power being calculated is compared by CPU with load power first threshold, if when Between the load power that is calculated in threshold value be consistently greater than load power first threshold, then CPU is sent to relay control module Signal is controlled, control relay disconnection makes power supply line after relay control module receives control signal;If in time threshold Then the load power being calculated deteriorates to less than load power first threshold in load power first threshold is first greater than again, Then CPU judges the load character of dormitory for resistive load or inductive load, if then CPU is controlled resistive load to relay again Module sends control signal, and control relay disconnection makes power supply line after relay control module receives control signal;If sense Property load then relay keep power supply line connection.
3. accommodation electricity usage wisdom control system according to claim 1, it is characterised in that: the big data cloud platform will Multiple periods are divided within one day, big data platform calculates the normal duty function of history N days each corresponding periods before the same day Rate average value is as each period normal duty power average value of history, when one day after that history is each on the day of of big data platform Between section normal duty power average value be respectively fed to the CPU of each wisdom controlling terminal, the CPU of each wisdom controlling terminal is rear One day using each period normal duty power average value of history as the load power first threshold of corresponding period.
4. accommodation electricity usage wisdom control system according to claim 1, it is characterised in that: further include cell phone application and right It should be set to the two dimensional code of each wisdom controlling terminal, cell phone application and big data cloud platform communication connection, cell phone application pass through mobile phone Hardware scanning two dimensional code is to identify corresponding wisdom controlling terminal, after identifying corresponding wisdom controlling terminal by cell phone application, Xiang great Data cloud platform sends the control instruction for controlling corresponding wisdom controlling terminal, and big data cloud platform generates phase after receiving control instruction The CPU for being sent into corresponding wisdom controlling terminal should be instructed, passes through relay after receiving instruction by the CPU of corresponding wisdom controlling terminal Device control module controls the actuating of relay.
5. accommodation electricity usage wisdom control system according to claim 4, it is characterised in that: in the wisdom controlling terminal, Load power second threshold is additionally provided in CPU, load power second threshold is less than load power first threshold, and CPU will be calculated To load power be compared respectively with load power first threshold, load power second threshold, if the load being calculated Power is greater than load power second threshold and is less than load power first threshold, then CPU sends alarm to big data cloud platform and refers to It enables, corresponding instruction is generated after big data cloud platform reception alarm command and is sent into cell phone application, is alarmed after cell phone application reception instruction.
CN201811467957.1A 2018-12-03 2018-12-03 Accommodation electricity usage wisdom control system Pending CN109347210A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111856975A (en) * 2020-07-22 2020-10-30 深圳市聚荣鑫科技有限公司 Intelligent campus system beneficial to campus management

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CN201750124U (en) * 2009-12-25 2011-02-16 温州佳瑞科技有限公司 Intelligent management controller for safely using electricity in dormitory
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CN106814676A (en) * 2017-03-14 2017-06-09 安徽德诺科技股份公司 System, method and apparatus that energy consumption of building is monitored and managed
CN107425601A (en) * 2017-05-04 2017-12-01 珠海优特物联科技有限公司 A kind of household main frame and load monitoring management method
CN108429348A (en) * 2018-04-02 2018-08-21 浙江拓客网络科技有限公司 A kind of wisdom Electrical Safety system

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Publication number Priority date Publication date Assignee Title
JP2002118961A (en) * 2000-10-04 2002-04-19 Sanyo Electric Co Ltd Electric power load management system
CN201750124U (en) * 2009-12-25 2011-02-16 温州佳瑞科技有限公司 Intelligent management controller for safely using electricity in dormitory
CN205335811U (en) * 2016-02-05 2016-06-22 上海用悦信息技术服务中心 Pernicious load recognition device
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Publication number Priority date Publication date Assignee Title
CN111856975A (en) * 2020-07-22 2020-10-30 深圳市聚荣鑫科技有限公司 Intelligent campus system beneficial to campus management

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