CN106329721B - Integral intelligent electric energy meter and electric-power metering and Control protection system - Google Patents
Integral intelligent electric energy meter and electric-power metering and Control protection system Download PDFInfo
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- CN106329721B CN106329721B CN201610379022.2A CN201610379022A CN106329721B CN 106329721 B CN106329721 B CN 106329721B CN 201610379022 A CN201610379022 A CN 201610379022A CN 106329721 B CN106329721 B CN 106329721B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00006—Circuit 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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit 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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Abstract
The present invention relates to field of electrical equipment, and in particular to a kind of integral intelligent electric energy meter and electric-power metering and Control protection system.Wherein, integral intelligent electric energy meter, including the gauge check module for electrical energy measurement, for the route protection module of line security protection, for the main control module of data processing and switch control and for the power module of power supply.Electric-power metering and Control protection system; including at least one above-mentioned intelligent electric energy meter; and tandem module, remote terminal and client, electric energy meter are communicated by communication unit with tandem module, tandem module, remote terminal and client carry out data interaction by wired or wireless network.Intelligent electric energy meter and electric-power metering of the invention and Control protection system can facilitate user and power supply management department to understand in time and grasp power information, and then rational utilization of electricity, pipe electricity;The data area that can be established again and further improve electricity consumption unified data platform, to realize that smart grid provides important technical support.
Description
Technical field
The present invention relates to field of electrical equipment, and in particular to a kind of integral intelligent electric energy meter and electric-power metering and control are protected
Protecting system.
Background technique
China is committed to building strong smart grid at present, mainly covers the power generation of electric system, transmission of electricity, power transformation, matches
6 electricity, electricity consumption and scheduling links, it is academic title with communication information platform, with intelligent control that intension, which is based on strong rack,
For means, electric system is realized from power generation, transmission of electricity, power transformation, distribution, electricity consumption and dispatches the Intellisense of links, intelligence knowledge
Not, the function of intelligent control, realizes the very high integrity fusion of " flow of power, information flow, Business Stream ", and smart grid can be integrated
Data in system optimize the management of power grid, and power grid is promoted to the new mode of interaction operating, improves the reliable of entire power grid
Property, availability and overall efficiency.With the research and construction of the advanced measuring system of smart grid, the electricity consumption directly related with resident
The functional requirement of information collection and On-line Control protection gradually shows.Due to the increase of the various demands of user, intelligent electric power is removed
Gauge table is other than needing to have the function of traditional multifunction power gauge table, it is also necessary to have two-way traffic function, two-way meter
Measure the functions such as function, a variety of load control manners, power supply control protection, Power Quality Detection and remote upgrade.
China's electric system at present still based on traditional method for electrically, only uses intelligent electric energy meter and sky in electricity consumption link
Air cock is used cooperatively, and has Preliminary Applications in terms of electric parameter measurement and remote meter reading, at present domestic widely applied timesharing
Peak valley ammeter, pre-paying kilowatt-hour meter and automatic data logging do not support the interaction of information and computer, they cannot be the same as power grid and user
Implementation interaction is carried out, lacks with electric-power metering, can only control and the product of two-way communication emerges.With country to power grid and its
The expansion of the intelligentized updatings such as equipment and transformation not only needs Control protection system to carry out protectiveness to client failure and divides automatically
Lock, while being also required to carry out protection separating brake to the abnormal failure due to power supply front end, it is also necessary to meeting safety after trouble shooting
It closes a floodgate and restores electricity again under the premise of specification." the National Standard of the People's Republic of China: firmly promulgated especially in accordance with 2011
Residence design specification (GB50096-2011) " requirement, New Dwelling, which is proposed, should install overvoltage, less voltage protector.But
It is that in actual operation, existing product in the market all has following defects that mainly using air switch, user can only be directed to
The failures such as overcurrent, short circuit, electric leakage carry out control protection separating brake, and can not automatic closing after separating brake;Or add after intelligent electric meter
The miniature circuit breaker of an automatic divide-shut brake of energy is filled, but as two discrete components, it is miniature disconnected that intelligent electric meter can not detect control
Road device.Said circumstances hinder smart grid and carry out to the extension of electrical domain.
With the popularization and expansion of stage electrovalence policy at home, the electricity consumption of user is divided into several stages, in order to more
The electricity consumption of oneself is reasonably arranged, user knows about the demand of daily even each moment oneself power information;And it is public to power
The general document that an electricity consumption and the amount of money are only provided a user in per the end of month of department.At this point, power information belongs to for a user
It in historical information, can only instruct to pay the fees, can not reasonably arrange the electricity consumption situation of oneself.If understanding the use of oneself when user thinks of
Electric situation, can only go electricity box to check.And since big unit local electricity counter box is property centralized management, owner can not be direct
See the data of electric power gauge.It, even more can only be by going to power supply company for the facilities for the step price that user is concerned about
Business hall is gone to inquire.Therefore, the method for obtaining power information by artificial mode at present is not only cumbersome and inconvenient, but also can not
It provides in real time, user can not adjust the electricity consumption plan of oneself according to electricity consumption actual conditions in real time.
In conclusion how to provide one kind has both intelligent electric power metering table and intelligent micro-circuit breaker function, real time measure
Electric power data and transmitted in both directions, and separating brake and scene, remote alarms can be actively protected according to power grid real-time parameter, after trouble shooting
It is automatic or closed a floodgate according to remote command, while there is electric energy quality monitoring and remote upgrade etc. under the premise of meeting related specifications
Function becomes this field technical problem urgently to be resolved.
Summary of the invention
Present invention solves the technical problem that being to provide a kind of integral intelligent electric energy meter and electric-power metering and control is protected
System realizes the metering of electric power data, and can actively be protected according to power grid real-time parameter separating brake and after trouble shooting it is automatic or
It is closed a floodgate according to remote command, and is able to achieve electric power data and controls the real time bidirectional transmission of signal.
To achieve the goals above, present invention employs following technical solutions:
Integral intelligent electric energy meter, comprising: gauge check module, route protection module, main control module and power module;
The gauge check module includes electric power detection unit, metering units, the clock for being separately connected the main control module
Unit, man-machine interaction unit;The electric power detection unit is for detecting electric current, voltage analog signal and being converted to number through A/D
Signal;The metering units are used for measuring circuit power and energy parameter;The clock unit is for providing split-second precision letter
Breath and output clock pulse signal;The man-machine interaction unit include for show electric energy meter working condition, continuous data,
The display unit of clock information and communication connection information, and the operating unit for information input;
The route protection module is used to carry out automatic brake separating, closing operation according to the instruction of the main control module;
The main control module includes central processor unit, storage unit and communication unit;The central processor unit
For handling the measurement data of the gauge check module, controls the route protection module and carry out switching on and off operation, Yi Jitong
It crosses the communication unit and external equipment or remote terminal carries out information exchange;The storage unit is for storing the centre
The information about power of reason device cell processing and configuration or interactive information;The communication unit is used for the main control module and exterior terminal
Between data interaction.
Further, the route protection module includes wiring units, switch unit, zero passage detection unit and state-detection
Unit, the wiring units are used for the access of power circuit, and the switch unit is described for completing automatic switching on and off operation
For zero passage detection unit for detecting voltage, current zero-crossing point, the state detection unit, which is used to detect, divides/the work of switching-on mechanism
State, and warning message is sent to the main control module when detecting abnormality.
Further, the circuit parameter of the metering units measurement includes voltage, electric current, active power, reactive power, view
In power, power factor, frequency, harmonic wave, active energy and quadergy, and provide independent active power and virtual value, electricity
Current voltage virtual value, line frequency and zero passage are interrupted.
Further, the storage unit is one of FLASH, EPPROM or FeRAM memory chip.
Further, the display unit includes self light emitting display panel, operation button and indicator light.
Further, the clock unit is the low-power consumption of supporting bus, high precision clock chip, and built-in temperature compensates
Crystal oscillator.
Further, the switch unit include point/power switch and point/switching-on mechanism, described point/switching-on mechanism serves as reasons
Motor-driven movable contact and stationary contact point contact or electromagnetism are attracted movable contact and stationary contact point contact or power supply motivates permanent magnet
Be attracted in movable contact and stationary contact point contact or SCR/IGBT/MOSFET/GTR semiconductor devices at least any one.
Further, the zero passage detection unit is for detecting voltage, current zero-crossing point, and the switch unit is in voltage
Combined floodgate when being zero, the separating brake when electric current is zero.
Preferably, the communication unit uses RS-485, infrared IR transmission, TCP/IP ethernet communication, wifi channel radio
One or more of letter, Zigbee wireless communication, Z-Wave wireless communication.
Preferably, the communication unit uses power line communication.
Further, the communication unit includes power line carrier sending module and receiving module.
Further, encryption unit is equipped between the communication unit and central processor unit.
Preferably, the encryption unit includes symmetric cryptography unit and asymmetric encryption unit, the symmetric cryptography unit
The data sent using communication unit described in symmetric key group encryption, the asymmetric encryption unit be used for according to firmware information or
External data immediately generate the symmetric key group.
The present invention also provides a kind of electric-power metering and Control protection systems, including at least one above-mentioned intelligent electric energy
Table and tandem module, remote terminal and client, the electric energy meter are logical by the communication unit and the tandem module
Letter, the tandem module carry out data interaction by wired or wireless network and the remote terminal, and the remote terminal passes through
Wired or wireless network and the client carry out data interaction;
The content that the intelligent electric energy meter is communicated with the tandem module includes electric energy meter status information, communication state letter
Breath, the real-time electricity consumption information of electricity consumption account, power quality information, multiplexing electric abnormality information, electric energy meter online communication status information, electricity
Can table handling log information, point/reclosing command information and warning message;
The remote terminal generates for monitoring, storing and managing user data and executes Event tourism scheme, Yi Jifen
User data is analysed, optimization power supply plan is generated;
The client is interacted for user with system, including inquiry power information, management user bound, control line
Road protective module carries out point/closing operation, and generates or selection Event tourism scheme.
Preferably, the communication mode between the communication unit on the intelligent electric energy meter and the tandem module is power line
Carrier communication.
Preferably, the communication channel between the communication unit and tandem module is divided into multiple independent in authorization frequency
Orthogonal sub-channels are modulated using a subcarrier on each of the sub-channels, each subcarrier transmitting data in parallel.
Preferably, the communication network between the tandem module and remote terminal includes power line carrier communication network network, light
Fibre web network, coax network, public internet and cordless communication network.
Further, the remote terminal be system for cloud computing center, the system for cloud computing center include server and
Hardware isolated device;The server include data storage server, elastic calculation server, data analytics server and in real time
Control server;The server and hardware isolated device are connected on data/address bus, and the hardware isolated device is deposited with data
It stores up server, elastic calculation server, data analytics server and implements control server one-to-one correspondence.
Further, the client is PC terminal or mobile terminal, passes through the application journey being installed in the PC terminal
APP in sequence or mobile terminal accesses the system for cloud computing center.
Integral intelligent electric energy meter of the invention is realized by the integrated circuit protective module on intelligent electric power metering table
Safe, the automatic breaking-closing operating of electric energy meter, avoid after traditional protective switch disconnects can not automatic closing need it is artificial
The step of operation, improves intelligence degree.On the other hand, by the way that encryption unit is arranged before communication unit, communication is realized
The encrypted transmission of content makes it to access common network to improve the safety of intelligent electric energy meter, realize electric energy meter with
Immediate data interaction between user overcomes the defect that traditional electric energy meter is only received data by power supply company.
On the other hand, electric-power metering and Control protection system of the invention lead to above-mentioned intelligent electric energy meter by power line
Internet of the letter access based on cloud computing facilitates user and power supply management department timely in the case where not changing user's habit
Understand and grasp power information, and then rational utilization of electricity, pipe electricity, finally realizes using electricity wisely;It can establish and further improve simultaneously and use
The data area of electric unified data platform, the flow data of customer power supply route is included, and it is complete that intelligent power is established in realization
Scape trend distributed model, real-time detection power supply line load condition, to ensure that Electrical Safety plays bigger effect.In addition, logical
The analog result for collecting the electricity consumption planning and virtual electricity consumption of user is crossed, can predict the following electricity consumption trend, Ji and the peace of passing through of going forward side by side
Full property analysis is real to thoroughly change the situation of the perception for user power utilization trend and analysis and Control scarce capacity in the past
Existing smart grid provides important technical support.
Detailed description of the invention
Fig. 1 is the modular structure schematic diagram of intelligent electric energy meter of the invention;
Fig. 2 is the structural schematic diagram of the gauge check module of intelligent electric energy meter of the invention;
Fig. 3 is the schematic diagram of the encryption unit of intelligent electric energy meter of the invention;
Fig. 4 is the structural schematic diagram of the route protection module of intelligent electric energy meter of the invention;
Fig. 5 is the module composition schematic diagram of electric-power metering and Control protection system of the invention.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still
It should be appreciated that these descriptions are only further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
Present invention firstly provides a kind of integral intelligent electric energy meter, two for mainly overcoming existing electric energy meter are lacked
Point: first is that the electricity data of metering needs meter reader to carry out live meter reading, related data cannot remotely be obtained.Second is that existing electricity
Can table be to be used separately with being spaced apart, only when occurring current anomaly in route, be spaced apart and just understand automatic trip;However, when different
After often releasing, it is also necessary to which the reset that manual operation is spaced apart is unable to remote reset, to cause the inconvenience of operation.
To overcome the above disadvantages, as shown in Figure 1, in a preferred embodiment, integral intelligent ammeter of the invention
Including following module: gauge check module, route protection module, main control module and power module, above-mentioned module-integrated installation
In in meter case.
Wherein, as shown in Fig. 2, gauge check module includes:
For detecting electric current, voltage analog signal and the electric power detection unit for being converted to through A/D digital signal;
For measuring circuit power and the metering units of energy parameter;
For providing the clock unit of split-second precision information and output clock pulse signal;
And for showing electric energy meter working condition, continuous data, clock information and the display unit of communication connection information
With the operating unit for information input, the two forms interpersonal interactive unit.
Above-mentioned gauge check module can accurately detect real-time electricity consumption, and be shown.
Preferably, in the present embodiment, the circuit parameter of metering units measurement includes voltage, electric current, active
Power, reactive power, apparent energy, power factor, frequency, harmonic wave, active energy and quadergy, and provide independent active
Power and virtual value, effective value, line frequency and zero passage are interrupted.Display unit include self light emitting display panel, operation by
Key and indicator light.The low-power consumption of clock unit supporting bus, high precision clock chip, and built-in temperature compensates crystal oscillator.
Route protection module is used to carry out automatic brake separating, closing operation according to the instruction of the main control module.Specifically, such as
Shown in Fig. 4, comprising:
Wiring units for power circuit access;
For completing the switch unit of automatic switching on and off operation;
For detecting the zero passage detection unit and state detection unit of voltage, current zero-crossing point;
And for detecting point/the working condition of switching-on mechanism, and warning message is sent when detecting abnormality
To the state detection unit of the main control module.
Above-mentioned route protection module can automatically disconnect the circuit when voltage in the line, current anomaly, be simultaneously emitted by report
Alert information.And after trouble shooting, and automatic closing can be realized under the control of main control module, avoid the behaviour of manual closing operation
Make, improves convenience.
Preferably, in the present embodiment, switch unit include point/power switch and point/switching-on mechanism, wherein point/
Switching-on mechanism can be movable contact motor-driven and stationary contact point contact or electromagnetism is attracted movable contact and connects with stationary contact
Touching or power supply excitation permanent magnet are attracted movable contact and stationary contact point contact, are also possible to SCR/IGBT/MOSFET/GTR and partly lead
Any one in body device.Zero passage detection unit detects voltage, current zero-crossing point, and switch unit conjunction when voltage is zero
Lock, the separating brake when electric current is zero avoid the generation of surge in circuit, protect electrical equipment.
Main control module includes:
For handling the measurement data of gauge check module, control route protective module carries out switching on and off operation, Yi Jitong
It crosses communication unit and external or remote terminal carries out the central processor unit of information exchange;
For storing the information about power of central processor unit processing, the storage unit of record, configuration or interactive information;
And the communication unit for the data interaction between main control module and exterior terminal.
Preferably, in the present embodiment, central processing unit using single-chip microcontroller, in ARM, DSP at least any one,
When according to remote command or monitoring that electrical parameter surmounts protection limitation, separating brake order is sent to route protection module;It receives
Remote command or when monitoring that electrical parameter meets safety closing specification, sends order of closing a floodgate to route protection module.
Storage unit is one of FLASH, EPPROM or ferroelectricity storage, and storage includes history electricity data, event note
Record the data such as data, the amount of freezing data.
Communication unit using RS-485, infrared IR transmission, TCP/IP ethernet communication, wifi wirelessly communicate, Zigbee without
One or more of line communication, Z-Wave wireless communication.
Alternatively, as a further preferred solution, communication unit includes power line carrier sending module and receiving module,
Using power line as telecommunication media, power line carrier communication is carried out to eliminate special communication line and simplifies electric energy
Wiring route in table.
Preferably, in the present embodiment, it is equipped with encryption unit between communication unit and main control module, is applied to all
The operation of the higher datas safety requirements such as authentication, data encryption/decryption, secure storage, communication security is needed, realizes safety
The purpose of control.
Specifically, as shown in figure 3, encryption unit includes asymmetric encryption mechanisms and asymmetric encryption mechanism.Wherein, symmetrical to add
The data that close mechanism is sent or received using symmetric key group encryption communication unit, rather than asymmetric encryption mechanisms are used for according to firmware
Information or external data immediately produce symmetric key group.Its workflow is as follows:
1) it needs to register mobile phone when system activates and obtains identifying code;
2) serial number of the identifying code and system hardware itself generates one group of symmetric key through asymmetric key system together;
3) subsequent data communication is using one in this group of symmetric key;
4) the symmetric key periodic replacement actually used.
The present invention also provides a kind of electric-power metering and Control protection systems, are objects to overcome existing electric-power metering electricity box
Industry centralized management, owner cannot be directly viewed the defect of the data of electric power gauge.Existing electric power metering system, for user
The facilities of the step price of care, can only be by going to power supply company business hall to go to inquire;And it is obtained by artificial mode
The method for taking power information is not only cumbersome and inconvenient, but also can not provide in real time, and user can not be in real time according to electricity consumption actual conditions tune
Oneself whole electricity consumption plan.
To solve the above-mentioned problems, as shown in figure 5, in the preferred embodiment, a kind of electric-power metering and control
Protection system, including at least one intelligent electric energy meter above-mentioned and tandem module, remote terminal and client.
Wherein, intelligent electric energy meter is communicated by communication unit with tandem module, and the content of communication includes real-time electricity consumption letter
Breath, divides/reclosing command information and warning message etc. at electric energy meter status information.
Preferably, the communication mode between the communication unit on intelligent electric energy meter and tandem module is power line load
Wave communication improves the utilization efficiency of circuit line, and stabilization with higher so as to avoid the laying of dedicated communication line
Property.
Specifically, given channel is divided into tens or even several hundred independences in authorization frequency by above-mentioned power line carrier communication
Different orthogonal sub-channels are modulated using a subcarrier on each of the sub-channels, and each subcarrier parallel transmission number
According to effectively improving band efficiency.In transmission process, the disturbance regime of each subchannel is constantly detected, if it find that having
Electromagnetic interference in interference (such as harmonic wave) generation of burst or certain subchannels is very serious, and power line carrier communication can be with intelligence
It adjusts to energy, that is, is transferred to transmission in other glitch-free subchannels, avoid interference source.Therefore it can simultaneously effective resist
A variety of interference, even also can guarantee high bandwidth transmission efficiency, to realize number in the case where power distribution network is heavily disturbed
According to high speed reliable communication.
Tandem module carries out data interaction by wired or wireless network and remote terminal.Tandem module and remote terminal it
Between communication network include power line carrier communication network network, fiber optic network, coax network, public internet and wireless communication
Network.
Remote terminal is used to detecting, store and managing user power utilization data, and provides and execute Event tourism scheme.
Preferably, remote terminal is system for cloud computing center, including server and hardware isolated device.Wherein,
Server includes data storage server, elastic calculation server, data analytics server and real-time control server.Server
Be connected on data/address bus with hardware isolated device, and hardware isolated device and data storage server, elastic calculation server,
Data analytics server and implementation control server one-to-one correspondence.
Remote terminal carries out data interaction, including inquiry power information, control by wired or wireless network and client
Route protection module carries out point/closing operation, and formulates or selection Event tourism scheme etc..
Preferably, client is PC terminal or mobile terminal, passes through the application journey being installed in the PC terminal
APP in sequence or mobile terminal accesses the system for cloud computing center.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims (17)
1. integral intelligent electric energy meter characterized by comprising
Gauge check module, route protection module, main control module and power module;
The gauge check module include the electric power detection unit for being separately connected the main control module, metering units, clock unit,
Man-machine interaction unit;The electric power detection unit is for detecting electric current, voltage analog signal and being converted to digital signal through A/D;
The metering units are used for measuring circuit power and energy parameter;The clock unit is used to provide split-second precision information, with
And output clock pulse signal;The man-machine interaction unit includes for showing electric energy meter working condition, continuous data, clock letter
The display unit of breath and communication connection information, and the operating unit for information input;
The route protection module is used to carry out automatic brake separating, closing operation, including wiring according to the instruction of the main control module
Unit, switch unit, zero passage detection unit and state detection unit, the wiring units are used for the access of power circuit, described
Switch unit is for completing automatic switching on and off operation, and the zero passage detection unit is for detecting voltage, current zero-crossing point, and institute
Switch unit combined floodgate when voltage is zero, the separating brake when electric current is zero are stated, the state detection unit divides/combined floodgate machine for detecting
The working condition of structure, and warning message is sent to the main control module when detecting abnormality;
The main control module includes central processor unit, storage unit and communication unit;The central processor unit is used for
The measurement data for handling the gauge check module controls the route protection module and carries out switching on and off operation, and passes through institute
It states communication unit and external equipment or remote terminal carries out information exchange;The storage unit is for storing the central processing unit
The information about power of cell processing and configuration or interactive information;The communication unit is used between the main control module and exterior terminal
Data interaction.
2. integral intelligent electric energy meter as described in claim 1, which is characterized in that the circuit parameter of the metering units measurement
Including voltage, electric current, active power, reactive power, apparent energy, power factor, frequency, harmonic wave, active energy and nonfunctional
Amount, and independent active power and virtual value, effective value, line frequency and zero passage interruption are provided.
3. integral intelligent electric energy meter as described in claim 1, which is characterized in that the storage unit is FLASH, EPPROM
Or one of FeRAM memory chip.
4. integral intelligent electric energy meter as described in claim 1, which is characterized in that the display unit includes that self-luminous is shown
Screen, operation button and indicator light.
5. integral intelligent electric energy meter as described in claim 1, which is characterized in that the clock unit is the low of supporting bus
Power consumption, high precision clock chip, and built-in temperature compensates crystal oscillator.
6. integral intelligent electric energy meter as described in claim 1, which is characterized in that the switch unit includes dividing/closing a floodgate electricity
Source and point/switching-on mechanism, described point/switching-on mechanism is movable contact motor-driven and stationary contact point contact or electromagnetism be attracted it is dynamic
Contact and stationary contact point contact or power supply excitation permanent magnet are attracted movable contact and stationary contact point contact or SCR/IGBT/MOSFET/
In GTR semiconductor devices at least any one.
7. integral intelligent electric energy meter as claimed in any one of claims 1 to 6, which is characterized in that the communication unit uses
RS-232, RS-485, infrared IR transmission, TCP/IP ethernet communication, wifi wireless communication, Zigbee wireless communication, Z-Wave
One or more of wireless communication.
8. integral intelligent electric energy meter as claimed in any one of claims 1 to 6, which is characterized in that the communication unit is using electricity
Line of force communication.
9. integral intelligent electric energy meter as claimed in claim 8, which is characterized in that the communication unit includes power line carrier
Sending module and receiving module.
10. integral intelligent electric energy meter as claimed in claim 9, it is characterised in that: the communication unit and central processing unit
Encryption unit is equipped between unit.
11. integral intelligent electric energy meter as claimed in claim 10, it is characterised in that: the encryption unit includes symmetric cryptography
Unit and asymmetric encryption unit, the number that the symmetric cryptography unit is sent using communication unit described in symmetric key group encryption
According to the asymmetric encryption unit is used to generate the symmetric key group according to firmware information or external data immediately.
12. a kind of electric-power metering and Control protection system, it is characterised in that: including at least one such as any one of claim 1-11
The intelligent electric energy meter and tandem module, remote terminal and client, the electric energy meter pass through the communication unit and institute
The communication of tandem module is stated, the tandem module carries out data interaction by wired or wireless network and the remote terminal, described
Remote terminal carries out data interaction by wired or wireless network and the client;
The content that the intelligent electric energy meter is communicated with the tandem module includes electric energy meter status information, communicating status information, use
The real-time electricity consumption information of electric account, power quality information, multiplexing electric abnormality information, electric energy meter online communication status information, electric energy meter
Operation log information, point/reclosing command information and warning message;
The remote terminal generates and executes Event tourism scheme, and analysis is used for monitoring, storing and managing user data
User data generates optimization power supply plan;
The client is interacted for user with system, including inquiry power information, management user bound, control route are protected
Shield module carries out point/closing operation, and generates or select Event tourism scheme.
13. electric-power metering as claimed in claim 12 and Control protection system, it is characterised in that: on the intelligent electric energy meter
Communication mode between communication unit and the tandem module is power line carrier communication.
14. electric-power metering as claimed in claim 13 and Control protection system, it is characterised in that: the communication unit and tandem
Communication channel between module is divided into multiple independent orthogonal sub-channels in authorization frequency, uses one on each of the sub-channels
Subcarrier is modulated, each subcarrier transmitting data in parallel.
15. electric-power metering as claimed in claim 13 and Control protection system, it is characterised in that: the tandem module and long-range
Communication network between terminal includes power line carrier communication network network, fiber optic network, coax network, public internet and nothing
Line communication network.
16. such as the described in any item electric-power meterings of claim 12-15 and Control protection system, it is characterised in that: described long-range
Terminal is system for cloud computing center, and the system for cloud computing center includes server and hardware isolated device;The server packet
Include data storage server, elastic calculation server, data analytics server and real-time control server;The server and hard
Part isolating device is connected on data/address bus, the hardware isolated device and data storage server, elastic calculation server, number
According to Analysis server and implement control server one-to-one correspondence.
17. electric-power metering as claimed in claim 16 and Control protection system, it is characterised in that: the client is PC terminal
Or mobile terminal, the cloud computing is accessed by the application program being installed in the PC terminal or the APP on mobile terminal
Network center.
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