CN106597088A - Power source distribution system of dual-core electric energy meter - Google Patents
Power source distribution system of dual-core electric energy meter Download PDFInfo
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- CN106597088A CN106597088A CN201610930034.XA CN201610930034A CN106597088A CN 106597088 A CN106597088 A CN 106597088A CN 201610930034 A CN201610930034 A CN 201610930034A CN 106597088 A CN106597088 A CN 106597088A
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- module
- electric energy
- energy meter
- lowering
- blood pressure
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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
- G01R22/061—Details of electronic electricity meters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a power source distribution system of a dual-core electric energy meter. The power source distribution system comprises a power source module (1); the power source module (1) includes a main power source (101) having N output terminals; the power source distribution system further comprises M power source distribution circuits of which the input ends are correspondingly connected with the N output ends of the main power source (101); each power source distribution circuit comprises P diodes and Q buck voltage-stabilization units which are connected together forwardly; and the output ends of the power source distribution circuits are correspondingly connected with a management module (401) of the management core of the dual-core electric energy meter, a processing module (302) of the metering core of the dual-core electric energy meter, the metering chip (301) of the metering core of the dual-core electric energy meter and a clock module (303) of the processing module (302) of the metering core of the dual-core electric energy meter. According to the power source distribution system of the dual-core electric energy meter of the invention, independent and separate lines are adopted to rationally distribute a power source, so that the reliable and stable operation of the metering core and management core of the dual-core electric energy meter can be realized.
Description
Technical field
The present invention relates to a kind of power distribution system of twin-core electric energy meter.
Background technology
The legality measurement part of current country's electric energy meter and administrative section unitary design（Measure core module and non-metering
Core module is monolithic construction）, both independent operatings are not carried out, based on the popularization of the national standard of IR46, electric energy meter
Towards twin-core electric energy meter transition, wherein, the legality measurement part and administrative section independent operating in twin-core electric energy meter, existing electricity
The power-supply management system of energy table is suitable only for the electric energy meter of legality measurement part and administrative section unitary design, is not particularly suited for
Twin-core electric energy meter, it is impossible to which the independent operating for the legality measurement part in twin-core electric energy meter and administrative section provides stable electricity
Pressure, it is impossible to ensure the normal operation of twin-core electric energy meter.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of power distribution system of twin-core electric energy meter, by independence, divides
From circuit, reasonable distribution power supply realizes that the metering core module and non-metering core module of twin-core electric energy meter is reliable, stably transports
OK.
To solve above-mentioned technical problem, the technical scheme of this offer is：A kind of power distribution system of twin-core electric energy meter, it
Including power module and power distribution module；The power module includes the main power source with least three outfans；The electricity
Source distribute module includes several lowering and stabilizing blood pressure units and several diodes；First outfan of the main power source and a blood pressure lowering
One end of voltage regulation unit is connected, the computation chip phase of the other end of the lowering and stabilizing blood pressure unit and the metering core module of twin-core electric energy meter
Even；Second outfan of the main power source is connected with one end of a lowering and stabilizing blood pressure unit, the other end of the lowering and stabilizing blood pressure unit with
The positive pole of diode is connected, and the negative pole of the diode is connected with one end of a lowering and stabilizing blood pressure unit, the lowering and stabilizing blood pressure unit it is another
One end is connected with the management module of the non-metering core module of twin-core electric energy meter；The connection of the positive pole of lowering and stabilizing blood pressure unit and diode
Node A is connected with a lowering and stabilizing blood pressure unit, the place of the other end of the lowering and stabilizing blood pressure unit and the metering core module of twin-core electric energy meter
The RTC of the MCU in reason module is connected；Connecting node A is also connected with another lowering and stabilizing blood pressure unit, the lowering and stabilizing blood pressure unit it is another
Hold and be connected with the processing module of the metering core module of twin-core electric energy meter.
As one kind preferably, the first outfan of the main power source concatenates one with the connection line of a lowering and stabilizing blood pressure unit
Lowering and stabilizing blood pressure unit.
As one kind preferably, connecting node A is connected with the alarm module of the non-metering core module of twin-core electric energy meter again.
As a kind of preferred, the company of the diode on the connection line of the second outfan of main power source and lowering and stabilizing blood pressure unit
Meet node B to be connected with the infrared communication module of the non-metering core module of twin-core electric energy meter.
As one kind preferably, the power module also includes stopping copying battery, described to stop copying lowering and stabilizing blood pressure described in battery and
One end of unit is connected, and the other end of the lowering and stabilizing blood pressure unit is connected with the positive pole of a diode, the negative pole of the diode and company
Meet node B to be connected.
As one kind preferably, the power distribution module also includes switch element；Wherein, the switch element has input
End, outfan and signal control end, wherein, the management module of the non-metering core module of lowering and stabilizing blood pressure unit and twin-core electric energy meter
Connecting node be connected with the input of switch element, the place of the outfan of switch element and the metering core module of twin-core electric energy meter
Reason module is connected；The CPU of the management module of the non-metering core module of twin-core electric energy meter is connected with the signal control end of switch element.
As one kind preferably, the power distribution module also includes several charging and discharging modules；Wherein, the of main power source
Lowering and stabilizing blood pressure unit and charging and discharging mould described in the connecting node and of lowering and stabilizing blood pressure unit on the connection line of one outfan
Block is connected.
As one kind preferably, the lowering and stabilizing blood pressure unit on the connection line of the second outfan of main power source and lowering and stabilizing blood pressure list
A diode is concatenated between unit, charging and discharging mould described in connecting node C and of the negative pole of the lowering and stabilizing blood pressure unit and diode
Block is connected.
As one kind preferably, the power module is also including the positive pole of Clock battery, the Clock battery and a diode
It is connected, the negative pole of the diode is connected with connecting node C again.
As it is a kind of preferably, the 3rd outfan of the main power source respectively with the snap gauge of the communication module of twin-core electric energy meter
Block, RS modules, uplink module and downstream module.
After above structure, the present invention compared with prior art, with advantages below：
First, by building reasonable, independent circuit, cause main power source electric with the metering core module and twin-core of twin-core electric energy meter respectively
The non-metering core module of energy table sets up connection, reasonably distributes power supply, is the metering core module and non-metering core of twin-core electric energy meter
Module provides suitable running voltage, realizes that the metering core module and non-metering core module of twin-core electric energy meter is reliable, stably transports
OK.
2nd, Clock battery and stop copying battery by arranging, at the same also overlapped setting Clock battery and stopping copy battery with it is double
The metering core module and the connection line of non-metering core module of core electric energy meter, it is ensured that after main power source is interfered power-off, lead to
Oversampling clock battery and stopping copies battery and continues as the metering core module and non-metering core module of twin-core electric energy meter and provides suitable work
Voltage.
3rd, by arrange charging and discharging module, it is ensured that twin-core electric energy meter metering core module RTC, Clock battery without
After effect, effectively work a period of time；Ensure the computation chip of the metering core module of twin-core electric energy meter, after main power source is invalid,
Effectively work a period of time.
Description of the drawings
Fig. 1 is present invention circuit diagram only under main power source working condition.
Fig. 2 is the integrally-built circuit diagram of the present invention.
Fig. 3 is operation principle circuit diagram of the present invention in the case of primary source failure.
Described in figure：1st, power module；101st, main power source；102nd, Clock battery；103rd, stop to copy battery；2nd, power distribution mould
Block；201st, lowering and stabilizing blood pressure unit；202nd, diode；203rd, switch element；204th, charging and discharging module；301st, computation chip；
401st, management module；501st, card module；502nd, RS485 modules；503rd, uplink module；504th, downstream module；6th, short-circuit protection mould
Block.
Specific embodiment
Below in conjunction with the accompanying drawings to being originally described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, the power distribution system of a kind of twin-core electric energy meter of the invention, it includes power module 1
With power distribution module 2；Power module 1 includes the main power source 101 with least three outfans；Power distribution module 2 includes
Several lowering and stabilizing blood pressure units 201, several diodes 202 and short circuit protection module 6；First outfan of main power source 101 with
One end of one lowering and stabilizing blood pressure unit 201 is connected, the other end of the lowering and stabilizing blood pressure unit 201 and the metering core module of twin-core electric energy meter
Computation chip 301 be connected；Second outfan of main power source 101 is connected with one end of a lowering and stabilizing blood pressure unit 201, and the blood pressure lowering is steady
The other end of pressure unit 201 is connected with the positive pole of diode 202, the negative pole of the diode 202 and a lowering and stabilizing blood pressure unit 201
One end is connected, and the other end of the lowering and stabilizing blood pressure unit 201 connects with the management module 401 of the non-metering core module of twin-core electric energy meter
Connect；Lowering and stabilizing blood pressure unit 201 is connected with connecting node A of the positive pole of diode 202 with a lowering and stabilizing blood pressure unit 201, the blood pressure lowering
The other end of voltage regulation unit 201 is connected with the RTC of the MCU in the processing module 302 of the metering core module of twin-core electric energy meter；Connection
Node A is also connected with another lowering and stabilizing blood pressure unit 201, the other end of the lowering and stabilizing blood pressure unit 201 and the metering of twin-core electric energy meter
The processing module 302 of core module is connected.
First outfan of main power source 101 concatenates a lowering and stabilizing blood pressure list with the connection line of a lowering and stabilizing blood pressure unit 201
Unit 201.
Connecting node A is connected with the alarm module 403 of the non-metering core module of twin-core electric energy meter again.
The connection section of diode 202 and lowering and stabilizing blood pressure unit 201 on the connection line of the second outfan of main power source 101
Point B is connected with the infrared communication module 402 of the non-metering core module of twin-core electric energy meter.
Power module 1 also includes stopping copying battery 103, stops copying battery 103 and is connected with one end of a lowering and stabilizing blood pressure unit 201,
The other end of the lowering and stabilizing blood pressure unit 201 is connected with the positive pole of a diode 202, negative pole and connecting node B of the diode 202
It is connected.
Power distribution module 2 also includes switch element 203；Wherein, switch element 203 have input, outfan and
Signal control end, wherein, the connection of the management module 401 of the non-metering core module of lowering and stabilizing blood pressure unit 201 and twin-core electric energy meter
Node is connected with the input of switch element 203, the place of the outfan of switch element 203 and the metering core module of twin-core electric energy meter
Reason module is connected；The CPU of the management module 401 of the non-metering core module of twin-core electric energy meter is controlled with the signal of switch element 203
End is connected.
Power distribution module 2 also includes several charging and discharging modules 204；Wherein, the first outfan of main power source 101
The connecting node of the lowering and stabilizing blood pressure unit 201 on connection line and lowering and stabilizing blood pressure unit 201 and the phase of a charging and discharging module 204
Even.
Lowering and stabilizing blood pressure unit 201 on the connection line of the second outfan of main power source 101 and lowering and stabilizing blood pressure unit 201 it
Between concatenate a diode 202, connecting node C and a charging and discharging mould of the negative pole of the lowering and stabilizing blood pressure unit 201 and diode 202
Block 204 is connected.
Power module 1 also includes Clock battery 102, and Clock battery 102 is connected with the positive pole of a diode 202, two pole
The negative pole of pipe 202 is connected with connecting node C again.
3rd outfan of main power source 101 card module 501, RS485 modules respectively with the communication module of twin-core electric energy meter
502nd, uplink module 503 and downstream module 504.Wherein, uplink module 503 includes carrier module, GPRS module etc.；Descending mould
Block 504 includes GPS module, mbus module etc.；3rd outfan of main power source 101 draws three road branch roads, goes here and there on first via branch road
Short circuit protection module 6 and 78L05 chips are connect, has been caused voltage to decline and is maintained 5V, current control has been separated into after 60mA
Two branch roads, respectively to twin-core electric energy meter communication module card module 501 and RS485 modules 502 stable voltage is provided.
Wherein, main power source 101 respectively with twin-core electric energy meter metering core module and twin-core electric energy meter non-metering core module
Connection is set up, reasonably distributes power supply, the metering core module and non-metering core module for twin-core electric energy meter provides suitable work
The job analysis of voltage are as follows：As shown in figure 1, the first outfan of main power source 101, the voltage swing of output is 8V, electric
Stream size is 15mA, by a lowering and stabilizing blood pressure unit 201, causes voltage to drop to 5V, and size of current remains as 15mA, then passes through
One lowering and stabilizing blood pressure unit 201, causes voltage to decline again, drops to 3.3V, and size of current remains as 15mA, is twin-core electric energy
The computation chip 301 of the metering core module of table provides the burning voltage of 3.3V；Second outfan of main power source 101, the electricity of output
Pressure size is 8V, and size of current is 210mA, by a lowering and stabilizing blood pressure unit 201, causes voltage to drop to 5.6V, size of current
210mA is remained as, four branched lines are divided into afterwards, wherein, in first branched line, by the He of diode 202 for concatenating
Lowering and stabilizing blood pressure unit 201, causes the voltage in the branched line to drop to 3.3V, and size of current is controlled to 2 A, is twin-core electricity
The RTC of the MCU in the processing module 302 of the metering core module of energy table provides the burning voltage of 3.3V, wherein, in Article 2 branch
Circuit, by a lowering and stabilizing blood pressure unit 201, causes the voltage in the branched line to drop to 3.3V, and size of current is controlled to
50mA, is the burning voltage of the offer 3.3V of processing module 302 of the metering core module of twin-core electric energy meter, wherein, in Article 3 point
Branch line, by the diode 202 and lowering and stabilizing blood pressure unit 201 of concatenation, first by the pressure of diode 202 in branched line
Drop, first drops to 5V or so by the voltage of the branched line, and size of current is controlled to 160mA, when the electricity of the branched line
Pressure drops to 5V or so, and size of current is controlled to 160mA and also draws branched line w all the way, by concatenating a short circuit protection module 6
It is connected with the infrared communication module 402 of the non-metering core module of twin-core electric energy meter, is the non-metering core module of twin-core electric energy meter
Infrared communication module 402 provides stable voltage, then by lowering and stabilizing blood pressure unit 201, then by under the voltage of the branched line
3.3V is dropped to, size of current is controlled to 130mA, the management module 401 for being embodied as the non-metering core module of twin-core electric energy meter is provided
The burning voltage of 3.3V, wherein, in Article 4 branched line, by concatenating a short circuit protection module 6 after with twin-core electric energy meter
The alarm module 403 of non-metering core module is connected, and is that the alarm module 403 of the non-metering core module of twin-core electric energy meter provides stable
Voltage.
Wherein, Clock battery 102 and stop copying battery 103 by arranging, by Clock battery 102 and stopping copy battery 103 after
Continue metering core module and non-metering core module for twin-core electric energy meter the detailed process of suitable running voltage be provided and be analyzed as follows,
As shown in figure 3, stop copying battery 103 being sequentially connected a lowering and stabilizing blood pressure unit 201 and diode 202, two branch lines are divided into afterwards
Road, wherein, in the first branched line, it is connected with the management module 401 of the non-metering core module of twin-core electric energy meter, it is twin-core electricity
The management module 401 of the non-metering core module of energy table provides the burning voltage of 3.3V, wherein, the second branched line community branch line
Road w, is that the infrared communication module 402 of the non-metering core module of twin-core electric energy meter provides stable voltage；Clock battery 102 is concatenated
One diode 202, the RTC for the MCU in the processing module 302 of the metering core module of twin-core electric energy meter provides stablizing for 3.3V
Voltage.
Wherein, by arranging charging and discharging module 204, wherein, a charging and discharging module 204 is the second of main power source 101
Discharge and recharge is realized on outfan and the branched line of the RTC of the metering core module of twin-core electric energy meter, it is ensured that the meter of twin-core electric energy meter
The RTC of amount core module, after Clock battery is invalid, effectively works a period of time；Wherein, a charging and discharging module 204 is being led
Charge and discharge is realized on first outfan of power supply 101 and the branched line of the computation chip 301 of the metering core module of twin-core electric energy meter
Electricity, it is ensured that the computation chip 301 of the metering core module of twin-core electric energy meter, after main power source is invalid, effectively works a period of time；
Simultaneously, additionally it is possible to by the CPU deactivation switches unit 203 of the management module 401 of non-metering core module, be embodied as twin-core
The processing module 302 of the metering core module of electric energy meter provides stable voltage.
Wherein, above-mentioned involved lowering and stabilizing blood pressure unit 201, refer in this application LDO modules, or other
Play the components and parts or module of lowering and stabilizing blood pressure effect.
Below only highly preferred embodiment of the present invention is described, but is not to be construed as limiting the scope of the invention.This
Invention is not limited only to above example, and the various change made in the protection domain of all independent claims in the present invention exists
In this protection domain.
Claims (10)
1. a kind of power distribution system of twin-core electric energy meter, it includes power module（1）With power distribution module（2）；Its feature
It is：The power module（1）Including the main power source with least three outfans（101）；The power distribution module（2）Bag
Include several lowering and stabilizing blood pressure units（201）With several diodes（202）；The main power source（101）The first outfan and
Lowering and stabilizing blood pressure unit（201）One end be connected, the lowering and stabilizing blood pressure unit（201）The other end and twin-core electric energy meter metering core
The computation chip of block（301）It is connected；The main power source（101）The second outfan and a lowering and stabilizing blood pressure unit（201）One end
It is connected, the lowering and stabilizing blood pressure unit（201）The other end and diode（202）Positive pole be connected, the diode（202）Negative pole with
One lowering and stabilizing blood pressure unit（201）One end be connected, the lowering and stabilizing blood pressure unit（201）The other end it is non-metering with twin-core electric energy meter
The management module of core module（401）Connection, lowering and stabilizing blood pressure unit（201）With diode（202）Positive pole connecting node A and
Lowering and stabilizing blood pressure unit（201）It is connected, the lowering and stabilizing blood pressure unit（201）The other end and twin-core electric energy meter metering core module place
The RTC of the MCU in reason module (302) is connected；Connecting node A also with another lowering and stabilizing blood pressure unit（201）It is connected, the lowering and stabilizing blood pressure
Unit（201）The processing module (302) of metering core module of the other end and twin-core electric energy meter be connected.
2. the power distribution system of a kind of twin-core electric energy meter according to claim 1, it is characterised in that：The main power source
（101）The first outfan and a lowering and stabilizing blood pressure unit（201）Connection line on concatenate a lowering and stabilizing blood pressure unit（201）.
3. the power distribution system of a kind of twin-core electric energy meter according to claim 1, it is characterised in that：Connecting node A is again
It is connected with the alarm module (403) of the non-metering core module of twin-core electric energy meter.
4. the power distribution system of a kind of twin-core electric energy meter according to claim 1, it is characterised in that：Main power source（101）
The second outfan connection line on diode（202）Negative pole and lowering and stabilizing blood pressure unit（201）Connecting node B with it is double
The infrared communication module (402) of the non-metering core module of core electric energy meter is connected.
5. the power distribution system of a kind of twin-core electric energy meter according to claim 4, it is characterised in that：The power module
（1）
Also include stopping copying battery（103）, it is described to stop copying battery（103）With lowering and stabilizing blood pressure unit described in（201）One end be connected,
The lowering and stabilizing blood pressure unit（201）The other end and a diode（202）Positive pole be connected, the diode（202）Negative pole and company
Meet node B to be connected.
6. the power distribution system of a kind of twin-core electric energy meter according to claim 1, it is characterised in that：The power distribution
Module（2）Also include switch element（203）；Wherein, the switch element（203）With input, outfan and signal control
End processed, wherein, lowering and stabilizing blood pressure unit（201）With the management module of the non-metering core module of twin-core electric energy meter（401）Connection section
Point and switch element（203）Input be connected, switch element（203）Outfan and twin-core electric energy meter metering core module
Processing module is connected；The management module of the non-metering core module of twin-core electric energy meter（401）CPU and switch element（203）Letter
Number control end is connected.
7. the power distribution system of a kind of twin-core electric energy meter according to claim 2, it is characterised in that：The power distribution
Module（2）Also include several charging and discharging modules（204）；Wherein, main power source（101）The first outfan connection line on
Lowering and stabilizing blood pressure unit（201）With lowering and stabilizing blood pressure unit（201）Connecting node and described in charging and discharging module（204）Phase
Even.
8. the power distribution system of a kind of twin-core electric energy meter according to claim 7, it is characterised in that：Main power source（101）
The second outfan connection line on lowering and stabilizing blood pressure unit（201）With lowering and stabilizing blood pressure unit（201）Between concatenate one or two poles
Pipe（202）, the lowering and stabilizing blood pressure unit（201）With diode（202）Negative pole connecting node C and described in charging and discharging module
（204）It is connected.
9. the power distribution system of a kind of twin-core electric energy meter according to claim 8, it is characterised in that：The power module
（1）
Also include Clock battery（102）, the Clock battery（102）With a diode（202）Positive pole be connected, the diode
（202）Negative pole be connected with connecting node C again.
10. the power distribution system of a kind of twin-core electric energy meter according to claim 1, it is characterised in that：The main power source
（101）The 3rd outfan respectively with the card module of the communication module of twin-core electric energy meter（501）, RS485 modules（502）, it is up
Module（503）And downstream module（504）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930034.XA CN106597088B (en) | 2016-10-31 | 2016-10-31 | A kind of power distribution system of twin-core electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930034.XA CN106597088B (en) | 2016-10-31 | 2016-10-31 | A kind of power distribution system of twin-core electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN106597088A true CN106597088A (en) | 2017-04-26 |
| CN106597088B CN106597088B (en) | 2019-05-17 |
Family
ID=58555933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610930034.XA Active CN106597088B (en) | 2016-10-31 | 2016-10-31 | A kind of power distribution system of twin-core electric energy meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142860A (en) * | 2018-08-22 | 2019-01-04 | 华立科技股份有限公司 | Wireless power electric energy meter |
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| CN101841187A (en) * | 2010-05-28 | 2010-09-22 | 威胜集团有限公司 | Power management power supply system for electronic electric energy meter |
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| Publication number | Publication date |
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| CN106597088B (en) | 2019-05-17 |
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