CN209298984U - The power failure of intelligent electric meter reports communication module and power failure reporting system - Google Patents
The power failure of intelligent electric meter reports communication module and power failure reporting system Download PDFInfo
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- CN209298984U CN209298984U CN201822198100.6U CN201822198100U CN209298984U CN 209298984 U CN209298984 U CN 209298984U CN 201822198100 U CN201822198100 U CN 201822198100U CN 209298984 U CN209298984 U CN 209298984U
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Abstract
The power failure that the utility model discloses a kind of intelligent electric meter reports communication module, it include: in-line power circuit, power cut detection circuit, charging control circuit, booster circuit and MCU, wherein, in-line power circuit, input terminal is connect with the power supply of intelligent electric meter and reference respectively, output end is connect with power cut detection circuit and charging control circuit respectively, exports the first power supply, the second power supply；Power cut detection circuit, input terminal are the second power supply, and output end is connect with booster circuit enable end and MCU respectively；The power cut detection circuit is also connect with charging control circuit；Charging control circuit, input terminal are the first power supply, the control terminal connection of output end and booster circuit；The charging control circuit is also connect with MCU；Power failure reports communication module to be independently arranged with intelligent electric meter, and has a power failure and communication module is reported to rely on intelligent electric meter work.With it is low in energy consumption, be easily achieved, at low cost, high reliability.
Description
Technical field
Communication module is reported the utility model relates to electric power network technique field more particularly to a kind of power failure of intelligent electric meter and is stopped
Electric reporting system.
Background technique
Intelligent electric meter is the terminal of smart grid, but it is not traditional electric energy meter, intelligent electric meter in addition to
Other than the function of measuring for having traditional electric energy meter basic electricity consumption, in order to adapt to the use of smart grid and new energy, it also has
There are two-way a variety of rate function of measuring, user terminal control function, the bidirectional data communication function of plurality of data transmission modes, thief-proof
A variety of intelligent purposes such as Electricity Functional, intelligent electric meter represent the hair of following energy-conserving intelligent power grid end user's intelligent terminal
Open up direction.
Power-line carrier communication is just widely popularized due to there is the innate advantage of " exempting to be routed " once coming out,
Especially the bandwidth carrier technology based on OFDM modulation technique is developed rapidly in recent years, and carrier communication is even more to become electricity consumption
The mainstream communication technology that system data set is copied.
When line fault occurs for network system, the events such as acquisition terminal failure cause to have a power failure, if outage information can be
It is transmitted to electric power information collection system main website at the first time, grid company can analyze failure within the shortest time
It solves, while improving customer experience, positive effect is also played to the reliable and stable operation of network system.Traditional electric power
Line carrier module needs to carry out the charging to super capacitor by DC-DC special chip, but its circuit structure is complicated, at high cost,
And system reliability is general.
Utility model content
In order to solve the above-mentioned technical problem, the utility model proposes a kind of power failures of intelligent electric meter to report communication module, packet
It includes:
In-line power circuit, power cut detection circuit, charging control circuit, booster circuit and MCU, wherein in-line power
Circuit, input terminal respectively with the power supply of intelligent electric meter and with reference to connect, output end respectively with power cut detection circuit and fill
Electric control circuit connection, exports the first power supply, the second power supply；
Power cut detection circuit, input terminal are the second power supply, and output end connects with booster circuit enable end and MCU respectively
It connects；The power cut detection circuit is also connect with charging control circuit；
Charging control circuit, input terminal are the first power supply, the control terminal connection of output end and booster circuit；It is described
Charging control circuit is also connect with MCU；
The power failure reports communication module to be independently arranged with intelligent electric meter, and has a power failure and communication module is reported to rely on intelligence
Ammeter work.
Further, the charging control circuit includes:
First diode, anode are connect with the first power supply, and cathode is connect with the first triode；
First triode, base stage are connect with MCU, the connection of the cathode of emitter and first diode, collector respectively with
Super capacitor anode and the connection of booster circuit input control end；
The power failure Detection & Controling circuit includes:
Second triode, base stage are connect with the second power supply, emitter respectively with first transistor emitter
And the input terminal connection of booster circuit, collector are connect with booster circuit enable end.
It further, include current-limiting circuit between the base stage and MCU of first triode；The hair of first triode
It include voltage regulator circuit between emitter-base bandgap grading and collector.
Further, the module further include:
Plug-pull detecting circuit is connect with MCU, intelligent electric meter and the second power supply respectively.
Further, the power failure reports communication module to connect with intelligent electric meter by least two interfaces.
Further, the in-line power circuit further includes reduction voltage circuit, and the reduction voltage circuit exports the first power supply.
Further, the booster circuit exports the second power supply.
Further, first power supply is+3.3V, and the second power supply is+12V.
The utility model also proposes a kind of power failure reporting system, comprising:
Power failure described at least one reports communication module；
At least one intelligent electric meter reports communication module to connect one to one with the power failure；
Concentrator is all connected with at least one described intelligent electric meter；
Main website is connect with concentrator.
The utility model proposes power failure report the circuit of communication module only to pass through the discrete devices such as two/triode, resistance
The charging to super capacitor can be realized, compared with traditional implementation for relying primarily on DC-DC special chip, there is function
Consume it is low, be easily achieved, be at low cost, high reliability.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, the utility model embodiment will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other accompanying drawings are obtained according to these attached drawings.
Fig. 1 is that the power failure of the utility model embodiment reports communication module circuitry structural schematic diagram；
Fig. 2 is that the power failure of the utility model embodiment reports the booster circuit figure of communication module；
Fig. 3 is that the power failure of the utility model embodiment reports communication module charging control circuit figure；
Fig. 4 is that the power failure of the utility model embodiment reports communication module power cut detection circuit figure；
Fig. 5 is that the power failure of the utility model embodiment reports communication module plug-pull detecting circuit figure；
Fig. 6 is that the power failure of the utility model embodiment reports communication module MCU circuit diagram；
Fig. 7 is the intelligent electric meter circuit diagram of the utility model embodiment；
Fig. 8 is the power failure reporting system structure chart of the utility model embodiment.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, belongs to the protection scope of the utility model.
The technical solution of the utility model is described in detail with reference to the accompanying drawing:
The utility model proposes power failure report carrier module of the communication module as intelligent electric meter, rely on intelligent electric meter
It uses, is connect by two connectors with ammeter interface, light current interface is responsible for realizing ammeter to carrier module offer+12V DC
Power supply, ammeter are interacted with carrier module progress rs 232 serial interface signal, the mutual control of some I/O mouthfuls of level and detection, forceful electric power interface are negative
Duty realizes the coupled transfer of carrier (boc) modulated signals.
Referring to Fig.1, in the present embodiment, it includes: in-line power circuit, filling with super capacitor that power failure, which reports communication module,
Several parts such as electric control circuit, BOOST booster circuit, power cut detection circuit and plug-pull detecting circuit.Major function are as follows: when
After mains failure, has a power failure and communication module (that is, carrier module) is reported to remain to self supply for keeping working power in a short time,
To complete the acquisition of power-off event and some significant datas and report, data are reported using power line carrier communication (PLC)
Mode.Such implementation can be integrated in power failure reporting functions on carrier module, and carrier module supports hot plug, therefore
Without changing ammeter and existing route, it is easy to accomplish.Circuit involved by the carrier module is few using component, high reliablity, ginseng
Several and logical design is reasonable, and power consumption is lower.
In-line power circuit: intelligent electric meter reports communication module to provide+12V power supply by light current interface to have a power failure, this electricity
Source all the way directly in carrier wave transmitting path power amplifier power, all the way through BUCK reduction voltage circuit export+3.3V voltage to
Master chip and its peripheral circuit power supply.
Power cut detection circuit: when power network line has a power failure, which enables to control booster circuit immediately automatically, will be super
The electric flux rapid pressure that capacitor is stored reports communication module to power instead of intelligent electric meter to+12V to power failure.
Charging control circuit: when power failure reports communication module to work normally, master chip (MCU) is defined by interface and is controlled
Charging circuit charges to super capacitor, and control power consumption is filled in first constant current, and rear constant pressure fills stable capacitance voltage, while super capacitor anode
It is connected with booster circuit input terminal, when having a power failure, is realized by power cut detection circuit and charging control circuit and boost chip is controlled,
Make boost chip output+12V voltage.
In conjunction with Fig. 2 to Fig. 7, provides power failure and reports the working principle of communication module as follows:
When intelligent electric meter and power failure report communication module to be in normal operating conditions:
(1) intelligent electric meter normally exports VCC power supply, and VSS is with reference to ground；
(2) VCC obtains+12V voltage after R1, D1, and+12V is down to+3.3V ,+12V and+3.3V through DCDC reduction voltage circuit
Communication module is reported to power to have a power failure simultaneously；
(3) it is divided by intelligent electric meter R6 and R7, triode Q1 base voltage is not less than emitter voltage, at triode Q1
In off state, then BoostEn/PowerFlag is low level, boost chip U1 does not work, main control chip control charging electricity
Road makes super capacitor be in charged state；
(4) main control chip controls triode Q2 conducting by Chrg_Ctrl, is electrically charged super capacitor C5；
In grid power blackout moment:
VCC voltage is down to 0V quickly, then triode Q1 base voltage is down to 0V simultaneously, power failure reporting module is in the short time
Interior to be powered by capacitor C1, triode Q1 is connected at this time, and BoostEn/PowerFlag becomes high level, and boost chip U1 work is main
It controls chip controls charging circuit to close, stops charging to super capacitor C5；
After grid power blackout:
(1) boost chip U1 output+12V, instead of VCC to module for power supply；
(2) main control chip carries out the storage of significant data, while the information such as power-off event are passed through power line carrier (PLC)
Mode be reported to main station system；
Wherein: VSS_1 and VSS_2 is not connected in power failure reporting module, when power failure reports communication module to extract, VSS_
1 is connected with reference to ground, and VSS_2 is hanging；When power failure reports communication module to be inserted into ammeter, VSS_1 and VSS_2 all with reference phases
Even；Power failure reports communication module not execute power failure when being not inserted into ammeter and reports movement.
Each component function declaration:
(1) R1: metering function from when power failure reports communication module to power on is prevented because of the excessive damage ammeter of immediate current；
(2) D1: buffer action from when the moment C1 that has a power failure is to have a power failure that communication module is reported to power reaches VCC voltage dip
And the effect of the slow drop of+12V voltage；
(3) C1: being to have a power failure that communication module is reported to power in the moment that has a power failure, guarantee reliably detects power-off event；
(4) R2: communication module pull-up from extracting on ammeter is reported to act in power failure, resistance value is larger (being much larger than R3)；
(5) R3, C2: filter action is played jointly；
(6) L1, U1, C4, R4, R5, C3, D2: boost function is realized jointly；
(7) R6, R7: playing the role of partial pressure jointly, by VCC voltage, so that when VCC has electricity, Q1 is turned off, when VCC is disconnected
Q1 is connected when electric；
(8) Q1: according to the state output BoostEn/PowerFlag signal of VCC voltage, BoostEn/ when Q1 is turned off
PowerFlag is low level, and main control chip detects system electrification and booster circuit does not work, BoostEn/ when Q1 is connected
PowerFlag is high level, and main control chip detects that system is powered down and booster circuit works, and output 12V is system power supply；
(9) R8: play drop-down when Q1 shutdown；
(10) D3: mainly playing antihypertensive effect, to prevent super capacitor C5 overtension, while providing positive bias for Q1 emitter
Voltage；
(11) R9: metering function from during main control chip control Q2 conducting, while charging current can be controlled
Size；
(12) Q2: playing on-off action, and super capacitor is electrically charged when conducting, and super capacitor stops charging when judging；
(13) R10: in Q2 shutdown, play the role of stable super-capacitor voltage, and can compensate for the V of Q2ECPressure drop；
(14) C5: super capacitor charges in normal power supply, provides energy source after power failure for system.
The utility model also proposes a kind of more complete power failure reporting system scheme, includes: N number of in scheme referring to Fig. 8
Communication module with power failure reporting functions detects and for having a power failure in the moment self-power supply that has a power failure.It obtains or saves in time and stop
Electric data, power-off event is reported, and power failure data are transmitted in a manner of power line carrier；N number of intelligent electric meter, with N number of power failure
Communication module is reported to connect one to one, for reporting communication module to provide power supply and communication interface to have a power failure；Concentrator, and it is every
One intelligent electric meter is all connected with, and is collected and is reported all power-off events reported；Main website is connect with concentrator, for receiving collection
The power-off event data that middle device is collected.
Claims (9)
1. a kind of power failure of intelligent electric meter reports communication module, which is characterized in that the module includes: in-line power circuit, stops
Power detection circuit, charging control circuit, booster circuit and MCU, wherein
In-line power circuit, input terminal respectively with the power supply of intelligent electric meter and with reference to connect, output end respectively with power failure
Detection circuit is connected with charging control circuit, exports the first power supply, the second power supply；
Power cut detection circuit, input terminal are the second power supply, and output end is connect with booster circuit enable end and MCU respectively；
The power cut detection circuit is also connect with charging control circuit；
Charging control circuit, input terminal are the first power supply, the control terminal connection of output end and booster circuit；The charging
Control circuit is also connect with MCU；
The power failure reports communication module to be independently arranged with intelligent electric meter, and has a power failure and communication module is reported to rely on intelligent electric meter
Work.
2. power failure according to claim 1 reports communication module, which is characterized in that the charging control circuit includes:
First diode, anode are connect with the first power supply, and cathode is connect with the first triode；
First triode, base stage are connect with MCU, the connection of the cathode of emitter and first diode, collector respectively with it is super
Capacitance cathode and the connection of booster circuit input control end；
The power failure Detection & Controling circuit includes:
Second triode, base stage are connect with the second power supply, emitter respectively with first transistor emitter and
The input terminal of booster circuit connects, and collector is connect with booster circuit enable end.
3. power failure according to claim 2 reports communication module, which is characterized in that the base stage of first triode with
It include current-limiting circuit between MCU；It include voltage regulator circuit between the emitter and collector of first triode.
4. power failure according to claim 1 reports communication module, which is characterized in that the module further include:
Plug-pull detecting circuit is connect with MCU, intelligent electric meter and the second power supply respectively.
5. power failure according to claim 1 reports communication module, which is characterized in that the power failure reports communication module and intelligence
Energy ammeter passes through at least two interfaces and connects.
6. power failure according to claim 1 reports communication module, which is characterized in that the in-line power circuit further includes drop
Volt circuit, the reduction voltage circuit export the first power supply.
7. power failure according to claim 1 reports communication module, which is characterized in that second power supply of booster circuit output
Power supply.
8. power failure according to claim 1 reports communication module, which is characterized in that first power supply is+3.3V,
Second power supply is+12V.
9. a kind of power failure reporting system characterized by comprising
At least one reports communication module such as the described in any item power failures of claim 1-8；
At least one intelligent electric meter reports communication module to connect one to one with the power failure；
Concentrator is all connected with at least one described intelligent electric meter；
Main website is connect with concentrator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822198100.6U CN209298984U (en) | 2018-12-26 | 2018-12-26 | The power failure of intelligent electric meter reports communication module and power failure reporting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198100.6U CN209298984U (en) | 2018-12-26 | 2018-12-26 | The power failure of intelligent electric meter reports communication module and power failure reporting system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082836A (en) * | 2019-11-18 | 2020-04-28 | 国网河北省电力有限公司电力科学研究院 | Intelligent detection device and method for power failure of HPLC communication unit |
| CN111162820A (en) * | 2019-12-25 | 2020-05-15 | 烟台芯火集成电路产业研究院有限公司 | Power conversion module and broadband carrier communication module |
| CN111341076A (en) * | 2020-03-23 | 2020-06-26 | 国网山东省电力公司成武县供电公司 | Power failure alarm and system |
| CN111835087A (en) * | 2020-08-03 | 2020-10-27 | 云南文衡驰光科技有限公司 | Power grid safety system based on Beidou positioning technology |
| CN113922484A (en) * | 2021-07-26 | 2022-01-11 | 浙江利尔达物联网技术有限公司 | System and method for reporting power failure of Wi-SUN network |
-
2018
- 2018-12-26 CN CN201822198100.6U patent/CN209298984U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082836A (en) * | 2019-11-18 | 2020-04-28 | 国网河北省电力有限公司电力科学研究院 | Intelligent detection device and method for power failure of HPLC communication unit |
| CN111162820A (en) * | 2019-12-25 | 2020-05-15 | 烟台芯火集成电路产业研究院有限公司 | Power conversion module and broadband carrier communication module |
| CN111341076A (en) * | 2020-03-23 | 2020-06-26 | 国网山东省电力公司成武县供电公司 | Power failure alarm and system |
| CN111835087A (en) * | 2020-08-03 | 2020-10-27 | 云南文衡驰光科技有限公司 | Power grid safety system based on Beidou positioning technology |
| CN113922484A (en) * | 2021-07-26 | 2022-01-11 | 浙江利尔达物联网技术有限公司 | System and method for reporting power failure of Wi-SUN network |
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Address after: 1, building six, building 180, 210012 software Avenue, Yuhuatai District, Jiangsu, Nanjing Patentee after: Nanjing Jess Microelectronics Technology Co., Ltd Address before: 1, building six, building 180, 210012 software Avenue, Yuhuatai District, Jiangsu, Nanjing Patentee before: Nanjing Nari Microelectronics Technology Co Ltd |