CN108918960A - It is a kind of to measure and the completely isolated intelligent electric energy meter of management function - Google Patents
It is a kind of to measure and the completely isolated intelligent electric energy meter of management function Download PDFInfo
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- CN108918960A CN108918960A CN201810627695.4A CN201810627695A CN108918960A CN 108918960 A CN108918960 A CN 108918960A CN 201810627695 A CN201810627695 A CN 201810627695A CN 108918960 A CN108918960 A CN 108918960A
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- 238000004891 communication Methods 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000006870 function Effects 0.000 claims description 23
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention relates to a kind of meterings and the completely isolated intelligent electric energy meter of management function, including the metering module with function of measuring and with the management module of management function, metering module and management module is independently arranged and electrical isolation.It realizes the complete lattice and electrical isolation of metering module and management module, and the electrical Interference for eliminating two intermodules influences；Metering module can be produced independently with management module, and production efficiency can be substantially improved；Metering module and management module can be formed Multiple Type specification demands, be improved the versatility of module, reduce overall cost with the mutual collocation of polymorphic type.
Description
Technical field
The present invention relates to a kind of intelligent electric energy meters applied to electrical energy measurement field.
Background technique
Since China promoted intelligent electric energy meter since 2009, the technology of intelligent electric energy meter and application have obtained quick hair
Exhibition, but with the development of society, intelligent electric energy meter is needed according to every kind of application demand especially since the open power sales of country
Upgraded, but existing intelligent electric energy meter is not allow to upgrade.And at the same time, International Legal Organization OIML is
New IR46 standard is put into effect, China is used as its member state, and the electric energy meter of the standard, such as national grid are also met in positive research
Company is proposed 2.0 concept of intelligent electric energy meter, metering and management is realized with independent MCU, that is, peripheral circuit respectively, referred to as
Metering core and management core, wherein metering core completes basic function of measuring, does not allow to upgrade, and managing core then allows to upgrade with full
The application of sufficient different clients needs.
But metering core and management core are only the separation in functional module, there is no separate in structure, that is to say, that
Or on same circuit board or in the same watchcase, seem and separated, but there are still mutually dry between circuit
Problem is disturbed, manages the failure of core, HardwareUpgring still wants entire electric energy meter to replace, and in terms of production, metering core and management
Function is separated but still cannot be individually produced core, and metering core will carry out metering adjustment process, and the time of consumption is long, manages core
It is then not necessarily to adjustment, production process is few, and elapsed time is short, cannot individually produce, when this creates the terminal needing to change more but production
Between short management core with need to change less and production time long metering core will synchronize do, production efficiency is low.
Summary of the invention
In order to overcome above-mentioned deficiency in the prior art, the present invention provides a kind of metering core and management core on circuit and structure
Completely isolated intelligent electric energy meter.
The present invention is achieved through the following technical solutions：
It is a kind of to measure and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Including the metering with function of measuring
Module and management module with management function, the metering module and management module is independently arranged and electrical isolation.
Preferably, management module provides working power by wireless power transmission mode by metering module.
Preferably, wireless power transmission transmit circuit and radio communication circuit A are arranged in metering module, in management module
The reception electricity of the wireless power transmission of electric energy for receiving the transmitting of the wireless power transmission transmit circuit in metering module is set
Road and the radio communication circuit B communicated with the radio communication circuit A in metering module.
Preferably, metering module is a circuit module closed by shell, connecting terminal is set on shell, it is described
Metering module further include voltage and current sample circuit, metering chip, MCU, memory, clock chip, relay and control circuit,
LED light, RS485 communication interface.
Preferably, metering chip, MCU, memory, clock chip part are by integrated SOC special chip replacement.
It further include display, remote communication module preferably, management module also includes MCU, memory, it is described
Management module is also encapsulated by shell.
Preferably, radio communication circuit A and radio communication circuit B selects high speed near infrared communication circuit, the meter
Measure the transparent window that infrared communication is respectively arranged on the shell of module, management module.
Preferably, metering module, management module are mutually locked using concave-convex complementary structure.
Preferably, the resonance amplitude of radio communication circuit B feedback radio energy transmission receiving circuit gives wireless communication electricity
Road A, the frequency of oscillation of the transmit circuit of wireless power transmission receive the resonance amplitude of circuit according to wireless power transmission to adjust.
Metering module is the Mobyneb electric energy meter for not having display function, contain voltage and current sample circuit,
Metering chip, MCU, memory, clock chip, relay and control circuit, LED light, RS485 communication, wireless power transmission
Transmit circuit, high speed near infrared communication circuit and shell and connecting terminal, metering module can be sealed or be led to by lead sealing screw
Ultrasonic bonding sealing is crossed, is a closed circuit module.The part such as metering chip, MCU, memory, clock chip can also
To be replaced by integrated SOC special chip.
Management module is the electric energy management module with remote upgrade function, contains MCU, memory, radio
The compositions such as reception circuit, high speed near infrared communication circuit, liquid crystal display, remote communication module, the shell that can be transmitted.
Metering module is independently arranged with management module, structure with electrically realize it is completely isolated.Mechanism is independent
Afterwards, using concave-convex complimentary fashion, the two itself is sealed by shell respectively for metering module and management module, and concave-convex mutual
It mends, mutually covers next and tamper fixed by lead sealing screw.
After electrical isolation, metering module and management module use wireless power transmission technology, i.e. metering module on electric energy
There is the transmit circuit of a wireless power transmission, management module has the reception circuit an of wireless power transmission, when two modules
When assembling, the reception circuit of the wireless power transmission of management module can be with the transmitting electricity of the wireless power transmission of metering module
Road resonance is powered to obtain electric energy to management module.Metering module and management module are logical using high speed near-infrared in communication
Letter technology realizes communication work, realizes the data interaction of metering module and management module, metering module and management module are outside
Transparent window is respectively set on shell, is used for high speed near infrared communication.Management module is provided with remote communication module, for remotely logical
Letter, facilitates the upgrading of management module, to meet the continuous development demand of power grid.
When powering on, metering module can be communicated with management module, and the wireless power transmission for reading management module receives circuit
Resonance amplitude, and according to this value adjust wireless power transmission transmit circuit resonance frequency so that wireless power transmission efficiency reaches
To highest.
The advantage of the invention is that：1, it realizes the complete lattice and electrical isolation of metering module and management module, disappears
In addition to the electrical Interference of two intermodules influences；2, metering module and management module can be produced independently, and production can be substantially improved
Efficiency；3, metering module and management module can be formed Multiple Type specification demands, be improved module with the mutual collocation of polymorphic type
Versatility, reduce overall cost.
Detailed description of the invention
Fig. 1 is the circuit structure functional block diagram of metering module of the invention.
Fig. 2 is the circuit structure functional block diagram of management module of the invention.
Fig. 3 is assembling schematic diagram of the invention.
Specific embodiment
Invention is described in further detail with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, 2, 3, a kind of metering and the completely isolated intelligent electric energy meter of management function, including with function of measuring
Metering mould, 1 and the management module 2 with management function, metering module and management module is independently arranged and electrical isolation.
Shell sealing is respectively adopted in metering module and management module, and using the complementary structure of concave-convex, is locked in two modules
Afterwards, it is locked by lead sealing screw, two modules just form an entirety, using the protection of lead sealing come tamper.
As shown in figure 3, be that groove type is set as with metering module, setting fluted 3, and convex block formula is arranged in management module
Structure, be provided with convex block 4, naturally it is also possible to which metering module is arranged to convex block formula in turn, and management module is arranged to groove
Formula.
Metering module is one and do not have the Mobyneb electric energy meter of display function, as shown in Figure 1, be its functional block diagram,
It contains voltage and current sample circuit 101, metering chip 102, MCU 103, memory 104, clock chip 105, relay
And control circuit 106, LED light 107, RS485 communication interface 108, wireless power transmission transmit circuit 109, high speed near-infrared are logical
Believe circuit A110 and shell and connecting terminal.Metering module 1 can by screw fixing seal or by ultrasonic bonding it is close
Envelope, is a closed electronic module.The internal functional unit of metering module 1, which can further collect, to be copied, as metering chip 102,
MCU 103, memory 104, clock chip 105 can integrate as a Special SOC chip.
Management module 2 is the electric energy management module with remote upgrade function, contains MCU 201, memory
202, the reception circuit 203 of wireless power transmission, high speed near infrared communication circuit B204, liquid crystal display 205, telecommunication mould
Block 206 etc..
Since metering module 1 is provided with the transmit circuit 109 of wireless power transmission, management module 2 is provided with radio energy
Transmission receiving circuit 203, when two modules are when assembling, the wireless power transmission of management module receives circuit 203 can be with meter
The wireless power transmission transmit circuit 109 for measuring module resonates, to obtain electric energy, powers to management module 2.Because of two modules
Distance after combination is very close, and the efficiency of wireless power transmission is very high.According to national grid standard, a single-phase intelligent electric energy
Power consumption of the table when communication module does not work is no more than 1W, and practical bulk article can be accomplished to be no more than 0.4W, for management module
302 its power consumption are no more than the half of intelligent electric meter Overall Power Consumption, it is contemplated that when the work of certain surplus and communication module most
The 2W power consumption allowed greatly, wireless power transmission power demand is no more than 2.5W, to the of less demanding of wireless power transmission circuit.Therefore
In the application, it can be transmitted using such magnetic field coupling-type electric energy.
The MCU 103 of metering module 1 can generate the resonance frequency of the adjustable wireless power transmission of duty ratio by frequency dividing,
And wireless power transmission transmit circuit 109 is controlled, when powering on, metering module 1 can be communicated with management module 2, read management mould
The wireless power transmission of block 2 receives the resonance amplitude of circuit 203, and adjusts resonance frequency according to this value, makes wireless power transmission
Efficiency reaches highest, while the also duty ratio of adjustable resonance frequency, when management module 2 is in low-power consumption work, reduces
Transimission power.
In order to guarantee the sealing performance of metering module 1 Yu management module 2, carried out between two modules using high speed near-infrared
Communication, both sides realize electrical isolation without electrical contact.In order to realize high speed near infrared communication, metering module 1 includes a height
Fast near infrared communication circuit A110, management module 2 also includes a high speed near infrared communication circuit B204, in 1 He of metering module
The corresponding position of the concaveconvex structure of management module 2 has one to use polycarbonate（PC）The transparency window of material done, passes through ultrasound
Wave or glue sealing are fixed, and transparency window is used for high speed near infrared communication.
The advantage of the invention is that：1, it realizes the complete lattice and electrical isolation of metering module and management module, disappears
In addition to the electrical Interference of two intermodules influences；2, metering module and management module can be produced independently, and production can be substantially improved
Efficiency；3, metering module and management module can be formed Multiple Type specification demands, be improved module with the mutual collocation of polymorphic type
Versatility, reduce overall cost.
Claims (8)
1. a kind of metering and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Including the meter with function of measuring
Measure module and the management module with management function, the metering module and management module be independently arranged and electrically every
From.
2. a kind of metering according to claim 1 and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Institute
The management module stated provides working power by wireless power transmission mode by metering module.
3. a kind of metering according to claim 2 and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Institute
Setting wireless power transmission transmit circuit and radio communication circuit A in the metering module stated, management module is interior to be arranged for receiving
In metering module wireless power transmission transmit circuit transmitting electric energy wireless power transmission reception circuit and with metering mould
The radio communication circuit B that radio communication circuit A in block is communicated.
4. a kind of metering according to claim 3 and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Institute
The metering module stated is a circuit module closed by shell, connecting terminal is arranged on shell, the metering module also wraps
Include voltage and current sample circuit, metering chip, MCU, memory, clock chip, relay and control circuit, LED light, RS485
Communication interface.
5. a kind of metering according to claim 3 or 4 and the completely isolated intelligent electric energy meter of management function, feature exist
In：The management module further includes having MCU, memory, further includes display, remote communication module, the management module
Also it is encapsulated by shell.
6. a kind of metering according to claim 5 and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Institute
The radio communication circuit A and radio communication circuit B stated selects high speed near infrared communication circuit, the metering module, management mould
The transparent window of infrared communication is respectively arranged on the shell of block.
7. a kind of metering according to claim 6 and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Institute
Metering module, the concave-convex complementary structure of management module use stated mutually are locked.
8. a kind of metering according to claim 3 and the completely isolated intelligent electric energy meter of management function, it is characterised in that：Institute
The resonance amplitude for the radio communication circuit B feedback radio energy transmission receiving circuit stated gives radio communication circuit A, and radio energy passes
The frequency of oscillation of defeated transmit circuit receives the resonance amplitude of circuit according to wireless power transmission to adjust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627695.4A CN108918960A (en) | 2018-06-19 | 2018-06-19 | It is a kind of to measure and the completely isolated intelligent electric energy meter of management function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627695.4A CN108918960A (en) | 2018-06-19 | 2018-06-19 | It is a kind of to measure and the completely isolated intelligent electric energy meter of management function |
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| Publication Number | Publication Date |
|---|---|
| CN108918960A true CN108918960A (en) | 2018-11-30 |
Family
ID=64420704
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