CN106571887B - A kind of management core of twin-core intelligent electric energy meter and metering core clock synchronization process method and device - Google Patents
A kind of management core of twin-core intelligent electric energy meter and metering core clock synchronization process method and device Download PDFInfo
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- CN106571887B CN106571887B CN201610900679.9A CN201610900679A CN106571887B CN 106571887 B CN106571887 B CN 106571887B CN 201610900679 A CN201610900679 A CN 201610900679A CN 106571887 B CN106571887 B CN 106571887B
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- 238000000034 method Methods 0.000 title claims description 39
- 230000001360 synchronised effect Effects 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 7
- 210000001367 artery Anatomy 0.000 claims description 5
- 210000003462 vein Anatomy 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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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
Abstract
The present invention realizes the clock synchronization operation of management core and metering core using pulse per second (PPS), effectively prevent the defect of the clock information and the clock information for managing core inaccurate clock of management core caused by inconsistent of metering core, simultaneously, keep the clock information of metering core synchronous with the management clock information of core, the accuracy of the clock information of effective guarantee management core, for metering and billing provides accurate clock information.
Description
Technical field
The present invention relates to electric energy meter fields, and more particularly, to a kind of management core of twin-core intelligent electric energy meter and meter
Measure core clock synchronization process method and device.
Background technology
Intelligent electric energy meter is the tool for recording power information, and indelible tribute is made that for the power information of measure user
It offers.
With the diversification of record power information, the clock accuracy of intelligent electric energy meter can accurately record electric energy meter
Power information has great meaning, for example, the power mode for collecting electric energy to user according to rate electric energy, accurately
Can be directly related at the time of record electricity consumption and generation electricity consumption correctly calculate the information such as the electricity cost of user.
However, the two independent functional process unit metering core masters of management core and metering core as twin-core intelligent electric energy meter
The metering of basic data, including forward and reverse electric energy and present clock etc. are completed, management core is mainly completed charging, expense control, shown
Show, the functions such as logout, and manage core and realize billing function according to the present clock that metering core obtains, manages core as a result,
Clock accurately has vital effect, however, the clock information of management core and the clock information difference of metering core become
Manage a big reason of core inaccurate clock, therefore, make the clock information of management core and the clock information of metering core synchronization become
The one of industry professional person is big to be pursued.
Invention content
To solve the above problems, the present invention provides a kind of management core of twin-core intelligent electric energy meter is synchronous with metering core clock
Processing method and processing device.The key point of the present invention is：Clock synchronization operation is realized using pulse per second (PPS), effectively prevents metering core
Clock information with management core clock information it is inconsistent caused by management core inaccurate clock defect, meanwhile, make meter
Measure that clock information and the management clock information of core of core are synchronouss, and effective guarantee manages the accuracy of the clock information of core, to count
Gauge, which takes, provides accurate clock information.
Also, core micro-control unit is managed when obtaining the pulse per second (PPS) less than metering core, management core micro-control unit can obtain
It takes internal clock oscillator to generate pulse per second (PPS), adds up, obtain the clock information of management core, effectively prevent intelligent electric energy
The acquisition of the clock information of table only sticks to the technological deficiency of metering core.Meanwhile power down time being preserved to non-at the power down moment
Volatile memory, will be non-volatile when the clock information that can not successfully obtain metering core and when managing the clock information of core when powering on
Clock information of the power down time of memory as management core effectively prevents management core clock error, meanwhile, into row clock event
Barrier reports.
According to an aspect of the invention, there is provided a kind of management core of twin-core intelligent electric energy meter is synchronous with metering core clock
Processing method, including：
Judge whether twin-core intelligent electric energy meter has the normal operation mode of electricity in external power；
There are the normal operation mode of electricity, management core to obtain second arteries and veins from metering core if twin-core intelligent electric energy meter is in external power
The signal of punching makes perpetual calendar clock according to the signal of the pulse per second (PPS), and the pulse per second (PPS) that adds up, full when the accumulation interval time
When sufficient preset time threshold, management core obtains the clock information of metering core to execute a simultaneously operating.
Preferably, the simultaneously operating, including：
Manage the clock information that core obtains metering core；
The clock information of the clock information and metering core that manage core is compared；
If the two is inconsistent, the internal clocking of metering core is obtained；
If management core clock information and the metering core internal clocking it is inconsistent, using the metering core inside when
The clock information of clock more new management core.
Preferably, after the internal clocking using the metering core more clock information of new management core, further include：
At the time of reporting clock failure and record failure generation.
Preferably, the twin-core intelligent electric energy meter in the operating mode, when management core micro-control unit can not obtain meter
When measuring the pulse per second (PPS) of core, management core obtains pulse per second (PPS) caused by the clock oscillator for being set to management core, adds up.
Preferably, it after the pulse per second (PPS) generated to the clock oscillator adds up, reports clock failure and records event
At the time of barrier occurs.
Preferably, if twin-core intelligent electric energy meter is not on external power and has the normal operation mode of electricity,
Judge whether the twin-core intelligent electric energy meter is in initialization pattern；
If so, management core obtains the signal of pulse per second (PPS) from metering core, and the clock information of metering core is obtained, otherwise terminates institute
State clock synchronizing method.
Preferably, whether the pps pulse per second signal and clock information for judging metering core obtain success, if the pulse per second (PPS) of metering core
Signal and clock information all obtain success, then use the clock information of the clock information more new management core of metering core, otherwise, management
Core obtains the clock information in nonvolatile storage.
Preferably, judge whether the management core successfully obtains the clock information in the nonvolatile storage, if management
Core successfully obtains the clock information in the nonvolatile storage, then using the clock information update in the nonvolatile storage
The clock information of core is managed, otherwise, the micro-control unit for managing core obtains clock of the internal clocking of management core as management core
Information.
Preferably, when the twin-core intelligent electric energy meter is in power-down mode, the power down moment is preserved to nonvolatile storage.
Preferably, ranging from 50 minutes to 120 minutes of the preset time threshold.
According to another aspect of the present invention, provide a kind of management core of twin-core intelligent electric energy meter place synchronous with metering core clock
Manage device, which is characterized in that including：
Metering core hardware clock, the clock information for generating metering core and pulse per second (PPS)；
Metering core micro-control unit, the pulse per second (PPS) for receiving the generation of metering core hardware clock generate pulse per second (PPS) and send
Pulse per second (PPS) extremely management core micro-control unit；And
Core micro-control unit is managed, the pulse per second (PPS) for receiving the generation of metering core micro-control unit, and the second arteries and veins that adds up
Perpetual calendar clock is made in punching, obtains the clock information of management core.
Preferably, described device further includes the power down moment that nonvolatile storage is used to store twin-core intelligent electric energy meter.
Preferably, described device further includes clock oscillator, the second arteries and veins for can not successfully obtain metering core when management core
When rushing, the pulse per second (PPS) of management core is generated.
Preferably, described device further includes serial peripheral equipment interface SPI communication interface, to carry out the management core microcontroller list
Communication between member and metering core micro-control unit.
Description of the drawings
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by：
Fig. 1 is the management core and metering core clock synchronization process according to the twin-core intelligent electric energy meter of the preferred embodiment of the present invention
The flow chart of method；
Fig. 2 is to obtain the simultaneously operating side that the clock information of metering core executes according to the management core of the preferred embodiment of the present invention
The flow chart of method；And
Fig. 3 is the management core and metering core clock synchronization process according to the twin-core intelligent electric energy meter of the preferred embodiment of the present invention
The structural schematic diagram of device.
Specific implementation mode
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be to disclose at large and fully
The present invention, and fully convey the scope of the present invention to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related field has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is the management core and metering core clock synchronization process according to the twin-core intelligent electric energy meter of the preferred embodiment of the present invention
The flow chart of method.As shown in Figure 1, the management core of twin-core intelligent electric energy meter and metering core clock synchronization process method 100 are from step
Rapid 101 start.In a step 101, first determine whether twin-core intelligent electric meter is in normal operation mode, if affiliated electric energy meter is just
Often operation, then carry out step 102, if the electric energy meter is not at normal operation mode, carry out step 104.
Preferably, if the electric energy meter is in normal operation mode, the management core of affiliated electric energy meter is obtained from metering core
Pps pulse per second signal makes perpetual calendar clock according to the pps pulse per second signal, and the pulse per second (PPS) that adds up.
Preferably, in step 103, when the accumulation interval time meeting preset time threshold, management core obtains metering core
Clock information execute a simultaneously operating.Wherein, the preset time threshold can be appointing within the scope of 50min-120min
Meaning value, such as the preset time threshold can be 50min, 70min, 100min or 120min, and specific threshold value is regarded by administrator
Member is set according to actual conditions or actual demand.
Preferably, if the electric energy meter is not at normal operation mode, step 104 is carried out.At step 104, judge
Whether the electric energy meter is in initialization pattern, if being in initialization pattern, carries out step 105, otherwise, method terminates.
Preferably, if the electric energy meter is in initialization pattern, step 105 is carried out.In step 105, the management
Core obtains pps pulse per second signal from metering core, while managing the clock information that core obtains metering core from metering core.
Preferably, in step 106, judge whether the management core successfully obtains the clock information of metering core, if obtaining
Success, then carry out step 107, otherwise, carries out step 108.
Preferably, if the management core successfully obtains the clock information of metering core, step 107 is carried out.In step 107,
Using the clock information of the clock information more new management core of metering core.
Preferably, if the management core does not obtain the clock information of metering core successfully, step 108 is carried out.In step
In 108, the management core obtains the clock information in nonvolatile storage.
Preferably, in step 109, judge whether the management core successfully obtains the clock letter in nonvolatile storage
Breath, if obtaining successfully, carries out step 110, if obtaining failure, carries out step 111.
Preferably, when the management core successfully obtains the clock information in nonvolatile storage, step 110 is carried out.In step
In rapid 110, the clock information of the management core is updated with the clock information of the nonvolatile storage.
Preferably, when the management core does not obtain the clock information in nonvolatile storage successfully, step 111 is carried out.
In step 111, the micro-control unit for managing core obtains clock information of the internal clocking of management core as management core.
Preferably, the twin-core intelligent electric energy meter is under positive operational mode, when the micro-control unit of management core obtain less than
When the pulse per second (PPS) of metering core, management core, which obtains, is set to the pulse per second (PPS) that the clock oscillator of management core generates, and adds up.
Preferably, the pulse per second (PPS) that the clock oscillator generates carries out after adding up, and reports clock failure and records failure
At the time of generation.
Preferably, when the twin-core intelligent electric energy meter is in power-down mode, the power down moment is preserved to nonvolatile storage.
Heretofore described management core and metering core clock synchronization process method, the work current by judging electric energy meter
Pattern takes different scheme to execute simultaneously operating according to different operating modes, and metering core has been effectively ensured in effective guarantee
Clock information with management core clock information it is consistent, the accuracy of twin-core Intelligent electric energy meter clock is avoided due to the two
Deviation caused by the technological deficiency of present clock inaccuracy that gets.
Fig. 2 is to obtain the simultaneously operating side that the clock information of metering core executes according to the management core of the preferred embodiment of the present invention
The flow chart of method.As shown in Figure 2, management core obtains simultaneously operating method 200 that the clock information of metering core executes from step 201
Start.In step 201, management core obtains the clock information of metering core.
Preferably, in step 202, the clock information of the clock information and metering core that manage core is compared, and judged
Whether the clock information of the clock information and metering core that manage core consistent, if the two unanimously if need not be managed the clock of core
The simultaneously operating of the clock information of information and metering core, method terminates, if the two is inconsistent, carries out step 203.
Preferably, if the clock information of management core and the clock information of metering core are inconsistent, in step 203, core is managed
Obtain with the internal clocking of metering core and judging manage core clock information and metering core internal clocking it is whether consistent, if managing
The clock information of core is consistent with the internal clocking of metering core, then need not be managed the clock information of core and the clock of metering core
The simultaneously operating of information, method terminate, and otherwise, carry out step 204.
Preferably, when the internal clocking of the clock information for managing core and the metering core is inconsistent, step 204 is carried out.?
In step 204, the clock information of the internal clocking more new management core of the metering core is utilized.
Preferably, the simultaneously operating method that management core obtains the clock information execution of metering core further includes step 205, in profit
After the internal clocking more clock information of new management core of the metering core, report clock failure and record failure generation when
It carves.
By method 200, effective guarantee twin-core intelligent electric energy meter has the management core of electricity during normal operation in external power
Clock information and metering core clock information it is consistent, when can not successfully obtain the clock information of metering core, obtain management
The clock information of the inside of core, and at the time of report clock failure and recording clock failure to occur.
Fig. 3 is the management core and metering core clock synchronization process according to the twin-core intelligent electric energy meter of the preferred embodiment of the present invention
The structural schematic diagram of device.As shown in figure 3, the management core of twin-core intelligent electric energy meter and metering core clock synchronization process device 300
It is made of metering core hardware clock 301, metering core micro-control unit 302 and management core micro-control unit 303.
When the management core for carrying out electric energy meter is synchronous with metering core clock, metering core micro-control unit 302 is hard from metering core
The pulse per second (PPS) that metering core hardware clock 301 generates is received at part clock 301, and is generated new pulse per second (PPS) and be sent to management core micro-control
Unit 303 processed carries out second arteries and veins after management core micro-control unit 303 receives the pulse per second (PPS) of the transmission of metering core micro-control unit 302
Punching adds up and makes perpetual calendar clock, to obtain the clock information of management core.It will be appreciated that when the accumulation interval time is full
When sufficient preset time threshold, management core micro-control unit 303 obtains a pulse per second (PPS) from metering core micro-control unit 302, and
The temporal information of comparison management core and metering core does not have to if the clock information of management core is consistent with the clock information of metering core
Synchronize operation；Otherwise, management core will obtain the internal clocking of metering core, and by the clock information for managing core and the metering
The internal clocking of core is compared, if the two is inconsistent, using the clock of the internal clocking more new management core of the metering core
Information, at the same report clock failure and record failure occur at the time of.
Preferably, metering core hardware clock 301 is used to generate clock information and the pulse per second (PPS) of metering core.
Preferably, metering core micro-control unit 302 is used to receive the pulse per second (PPS) of the generation of metering core hardware clock 301, generates
Pulse per second (PPS) simultaneously sends pulse per second (PPS) to management core micro-control unit 303.
Preferably, pulse per second (PPS) of the management core micro-control unit 303 for receiving the generation of metering core micro-control unit 302, and
Perpetual calendar clock is done in the pulse per second (PPS) that adds up, and obtains the clock information of management core.
Preferably, device 300 further includes nonvolatile storage 304, the power down moment for storing twin-core intelligent electric energy meter,
When electric energy meter is in initialization pattern and management core obtains the clock information of metering core not successfully, power down time is provided.
Preferably, device 300 further includes clock oscillator 305, can not successfully be obtained for managing core micro-control unit 303
When the pulse per second (PPS) of metering core micro-control unit 302, the pulse per second (PPS) of management core is generated.
Preferably, device 300 further includes SPI communication interfaces 306, to carry out the management core micro-control unit 303 in terms of
The communication between core micro-control unit 302 is measured, respective function is completed as independent functional unit in metering core and management core
Meanwhile in case there is a need, the two can be connected by connection setup, transmit communication data.
Device provided by the invention realizes the clock synchronization operation between management core and metering core using pulse per second (PPS), effectively
Avoid the clock information of metering core and management core clock information it is inconsistent caused by the inaccurate clock of management core lack
It falls into, meanwhile, the clock information of metering core is synchronous with the clock information of management core, and effective guarantee manages the clock information of core
Accuracy provides accurate clock information for metering and billing.
Device provided by the invention also by manage core inner be arranged clock oscillator, generate pulse per second (PPS), management core without
When method successfully obtains the pulse per second (PPS) of metering core, by this clock oscillator generate pulse per second (PPS), effectively overcome once obtain less than
The pulse per second (PPS) of metering core will be unable to carry out cumulative so that management core does not have a technological deficiency of clock information, effective guarantee twin-core
The accuracy of the clock information of intelligent electric energy meter provides foundation for accurate completion charging, the expense control of twin-core intelligent electric energy meter.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above are equally fallen the present invention's
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
It is construed at least one of described device, component etc. example, unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (12)
1. a kind of management core of twin-core intelligent electric energy meter and metering core clock synchronization process method, including：
Judge whether twin-core intelligent electric energy meter has the normal operation mode of electricity in external power；
There are the normal operation mode of electricity, management core to obtain pulse per second (PPS) from metering core if twin-core intelligent electric energy meter is in external power
Signal makes perpetual calendar clock according to the signal of the pulse per second (PPS), and the pulse per second (PPS) that adds up, and meets in advance when the accumulation interval time
If when time threshold, management core obtains the clock information of metering core to execute a simultaneously operating；
Wherein, the simultaneously operating, including：
Manage the clock information that core obtains metering core；
The clock information of the clock information and metering core that manage core is compared；
If the two is inconsistent, the internal clocking of metering core is obtained；
If management core clock information and the metering core internal clocking it is inconsistent, using the metering core internal clocking more
The clock information of new management core.
2. method according to claim 1, which is characterized in that the internal clocking using the metering core more new management core
Clock information after, further include：
At the time of reporting clock failure and record failure generation.
3. according to the method described in claim 1, it is characterized in that, the twin-core intelligent electric energy meter in the operating mode, works as pipe
When the micro-control unit of reason core can not obtain the pulse per second (PPS) of metering core, management core obtains the clock oscillator institute for being set to management core
The pulse per second (PPS) of generation, adds up.
4. according to the method described in claim 3, it is characterized in that, further including：
To the clock oscillator generate pulse per second (PPS) add up after, report clock failure and record failure occur when
It carves.
5. according to the method described in claim 1, if twin-core intelligent electric energy meter is not on external power and has the normal operation of electricity
Pattern, then
Judge whether the twin-core intelligent electric energy meter is in initialization pattern；
If so, management core obtains the signal of pulse per second (PPS) from metering core, and the clock information of metering core is obtained, when otherwise terminating described
Clock synchronous method.
6. according to the method described in claim 5, it is characterized in that, judge metering core pps pulse per second signal and clock information whether
It obtains successfully, if the pps pulse per second signal and clock information of metering core all obtain success, is updated using the clock information of metering core
The clock information of core is managed, otherwise, management core obtains the clock information in nonvolatile storage.
7. according to the method described in claim 6, it is characterized in that, to judge whether the management core successfully obtains described non-volatile
Clock information in memory, if management core successfully obtains the clock information in the nonvolatile storage, using described non-
The clock information of clock information more new management core in volatile memory, otherwise, the micro-control unit for managing core obtain management core
Internal clocking as management core clock information.
8. according to the method described in claim 1, it is characterized in that, further including：
When the twin-core intelligent electric energy meter is in power-down mode, the power down moment is preserved to nonvolatile storage.
9. method according to claim 1, which is characterized in that ranging from 50 minutes to 120 points of the preset time threshold
Clock.
10. a kind of management core of twin-core intelligent electric energy meter and metering core clock synchronization process device, which is characterized in that including：
Metering core hardware clock, the clock information for generating metering core and pulse per second (PPS)；
Metering core micro-control unit, the pulse per second (PPS) for receiving the generation of metering core hardware clock generate pulse per second (PPS) and send a second arteries and veins
Punching extremely management core micro-control unit；And
Core micro-control unit is managed, the pulse per second (PPS) for receiving the generation of metering core micro-control unit, and the pulse per second (PPS) system that adds up
Make perpetual calendar clock, obtains the clock information of management core；
Nonvolatile storage, the power down moment for storing twin-core intelligent electric energy meter.
11. device according to claim 10, which is characterized in that described device further includes：
Clock oscillator, for when manage core micro-control unit can not successfully obtain the pulse per second (PPS) of metering core micro-control unit when,
Generate the pulse per second (PPS) of management core.
12. device according to claim 10, which is characterized in that described device further includes serial peripheral equipment interface SPI communication
Interface, to carry out the communication between the management core micro-control unit and metering core micro-control unit.
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| CN201610900679.9A CN106571887B (en) | 2016-10-17 | 2016-10-17 | A kind of management core of twin-core intelligent electric energy meter and metering core clock synchronization process method and device |
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| CN201610900679.9A CN106571887B (en) | 2016-10-17 | 2016-10-17 | A kind of management core of twin-core intelligent electric energy meter and metering core clock synchronization process method and device |
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| CN112667643B (en) * | 2021-01-07 | 2023-09-15 | 南方电网数字电网研究院有限公司 | Power failure data storage method and device based on double-core intelligent ammeter |
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| CN113064803A (en) * | 2021-03-25 | 2021-07-02 | 深圳供电局有限公司 | Power failure event recording method and device for double-core intelligent electric meter and computer equipment |
| CN112986674A (en) * | 2021-04-13 | 2021-06-18 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Three-phase intelligent electric meter with double-core structure |
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