CN111025223B - Clock correction method, device, equipment and storage medium of electric energy meter - Google Patents
Clock correction method, device, equipment and storage medium of electric energy meter Download PDFInfo
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- CN111025223B CN111025223B CN201911349004.XA CN201911349004A CN111025223B CN 111025223 B CN111025223 B CN 111025223B CN 201911349004 A CN201911349004 A CN 201911349004A CN 111025223 B CN111025223 B CN 111025223B
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Abstract
The invention provides a clock correction method, a clock correction device, clock correction equipment and a clock correction storage medium for an electric energy meter, and belongs to the technical field of electric meter correction. The method comprises the following steps: acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator; calculating and acquiring the real power-off time and the real power-on time of the electric energy meter according to the time difference; determining a power failure time interval of the electric energy meter according to a voltage load curve, the real power failure time and the real power-on time of the electric energy meter; and sending a clock repair instruction to the electric energy meter according to the power failure time interval of the electric energy meter. The invention can more accurately realize the correction of the clock in the electric energy meter.
Description
Technical Field
The invention relates to the technical field of ammeter correction, in particular to a clock correction method, device, equipment and storage medium of an electric energy meter.
Background
In the electric power meter reading system, the accuracy of the clock of the electric energy meter is particularly important, and when a power failure event occurs, the running time is long, or the clock battery is under-voltage, the clock of the electric energy meter is prone to have errors.
In order to reduce or even eliminate such clock errors, the prior art solutions usually use the time when the concentrator collects the event as a reference value of the power failure time, and then perform time comparison correction on the clock of the electric energy meter.
However, in the process of correction by the method, the time of the power failure event collected by the concentrator is not considered to have a certain error, so that the result corrected by the method still has a certain time error and cannot be corrected accurately.
Disclosure of Invention
The invention aims to provide a clock correction method, a clock correction device, clock correction equipment and a storage medium of an electric energy meter, which can more accurately correct a clock in the electric energy meter.
The embodiment of the invention is realized by the following steps:
in one aspect of the embodiments of the present invention, a clock correction method for an electric energy meter is provided, where the method is applied to a concentrator, and the concentrator is electrically connected to the electric energy meter, and the method includes:
acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator;
calculating and acquiring the real power-off time and the real power-on time of the electric energy meter according to the time difference;
determining a power failure time interval of the electric energy meter according to a voltage load curve, the real power failure time and the real power-on time of the electric energy meter;
according to the power failure time interval of the electric energy meter, sending a clock repair instruction to the electric energy meter, wherein the repair instruction comprises the following steps: correct time information.
Optionally, determining a power failure time interval of the electric energy meter according to the voltage load curve, the real power failure time and the real power-on time of the electric energy meter, including:
collecting a voltage load curve of the electric energy meter;
acquiring the credibility of the real power-off time and the real power-on time according to the voltage load curve of the electric energy meter;
and determining the power failure time interval of the electric energy meter according to the reliability.
Optionally, determining the credibility of the real power-off time and the real power-on time according to a voltage load curve of the electric energy meter includes:
zeroing the real power-off time and the real power-on time in seconds to obtain reset power-off time and reset power-on time;
respectively judging whether a curve interval corresponding to reset power-off time and a curve interval corresponding to reset power-on time exist in a voltage load curve;
if a curve interval corresponding to the reset power failure time exists, the real power failure time is credible;
and if the curve interval corresponding to the reset power-on time exists, the real power-on time is credible.
Optionally, obtaining a time difference between the clock of the electric energy meter and the clock of the concentrator includes:
checking whether a time difference between the electric energy meter clock and the concentrator clock exists in the historical record;
and if the current clock does not exist, acquiring the current clock of the electric energy meter, and calculating and acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator according to the current clock of the electric energy meter and the current clock of the concentrator.
In another aspect of the embodiments of the present invention, there is provided a clock correction apparatus for an electric energy meter, the apparatus being applied to a concentrator, the concentrator being electrically connected to the electric energy meter, the apparatus including: the device comprises an acquisition module, a calculation module, a determination module and a repair module.
And the acquisition module is used for acquiring the time difference between the electric energy meter clock and the concentrator clock.
And the calculation module is used for calculating and acquiring the real power-off time and the real power-on time of the electric energy meter according to the time difference.
And the determining module is used for determining the power failure time interval of the electric energy meter according to the voltage load curve, the real power failure time and the real power-on time of the electric energy meter.
The restoration module is used for sending a clock restoration instruction to the electric energy meter according to the power failure time interval of the electric energy meter, and the restoration instruction comprises: correct time information.
Optionally, the determining module is specifically configured to:
collecting a voltage load curve of the electric energy meter;
acquiring the credibility of the real power failure time and the real power-on time according to the voltage load curve of the electric energy meter;
and determining the power failure time interval of the electric energy meter according to the reliability.
Optionally, the determining module is further configured to:
performing second zeroing processing on the real power-off time and the real power-on time to obtain reset power-off time and reset power-on time;
respectively judging whether a curve interval corresponding to reset power-off time and a curve interval corresponding to reset power-on time exist in a voltage load curve;
if a curve interval corresponding to the reset power failure time exists, the real power failure time is credible;
and if the curve interval corresponding to the reset power-on time exists, the real power-on time is credible.
Optionally, the obtaining module is specifically configured to:
checking whether a time difference between the electric energy meter clock and the concentrator clock exists in the historical record;
and if the current clock does not exist, acquiring the current clock of the electric energy meter, and calculating and acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator according to the current clock of the electric energy meter and the current clock of the concentrator.
In another aspect of the embodiments of the present invention, a computer device is provided, including: the clock correction method of the electric energy meter comprises a memory and a processor, wherein a computer program capable of running on the processor is stored in the memory, and when the processor executes the computer program, the clock correction method of the electric energy meter is realized.
In another aspect of the embodiments of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the method for clock correction of an electric energy meter is implemented.
The embodiment of the invention has the beneficial effects that:
according to the clock correction method, device, equipment and storage medium of the electric energy meter, provided by the embodiment of the invention, the real power-off time and the real power-on time of the electric energy meter can be calculated by acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator, the power-off time interval of the electric energy meter can be obtained according to the voltage load curve, the clock of the electric energy meter is further repaired, and the correction of the clock in the electric energy meter can be more accurately realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic flowchart of a clock correction method for an electric energy meter according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a process of determining a power outage time interval of an electric energy meter according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of reliability determination according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of obtaining a time difference according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a clock correction apparatus of an electric energy meter according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Fig. 1 is a schematic flow chart of a clock correction method for an electric energy meter according to an embodiment of the present invention, and referring to fig. 1, in one aspect of the embodiment of the present invention, a clock correction method for an electric energy meter is provided, which is applied to a concentrator, and the concentrator is electrically connected to the electric energy meter.
It should be noted that the concentrator can collect various information of the electric energy meter, for example: and the power failure information, the power supply information, the time information corresponding to the power failure information and the power supply information respectively, and the like.
The method comprises the following steps:
s10: and acquiring the time difference between the electric energy meter clock and the concentrator clock.
It should be noted that, the concentrator may obtain the number of times of power failure of the electric energy meter, for example: when the electric energy meter has power failure, the concentrator can record the power failure times of the electric energy meter and add 1. When in useWhen the power failure times of the electric energy meter obtained by the concentrator are changed, the power failure event of the electric energy meter can be considered. For example, when a power failure event occurs, the time of the power failure read by the concentrator can be recorded as T a With a power-on time of T b 。
When a power failure event occurs, the concentrator can acquire the current time of the clock of the electric energy meter and record the current time of the clock of the concentrator at the same time, so that the time difference before the power failure of the electric energy meter is obtained.
Illustratively, when a power failure event occurs, the current time of the clock of the electric energy meter is T a1 The current time of the concentrator clock is T a2 Time difference before power failure Δ T a ＝T a1 -T a2 。
When the power failure event is finished, namely the electric energy meter is electrified again, the concentrator can acquire the current time of the clock of the electric energy meter and record the current time of the clock of the concentrator at the same time, so that the time difference after the electric energy meter is electrified is obtained.
Illustratively, when the blackout event ends, the current time of the clock of the electric energy meter is T b1 The current time of the concentrator clock is T b2 Time difference before power failure Δ T b ＝T b1 -T b2 。
S20: and calculating and acquiring the real power-off time and the real power-on time of the electric energy meter according to the time difference.
Wherein, the real power failure time T 1 ＝T a +ΔT a (ii) a True power-on time T 2 ＝T b +ΔT b 。
S30: and determining the power failure time interval of the electric energy meter according to the voltage load curve, the real power failure time and the real power-on time of the electric energy meter.
It should be noted that the voltage load curve of the electric energy meter is a curve for representing the load voltage of the electric energy meter along with time, and may be collected by the concentrator, for example: and reading and storing the voltage once from the electric energy meter every preset time period (for example, 1 minute), and generating a voltage load curve according to the collected voltage sampling points. The power failure time interval of the electric energy meter is the real power failure time interval of the electric energy meter after the power failure event happens and until the power failure event is over.
S40: and sending a clock repair instruction to the electric energy meter according to the power failure time interval of the electric energy meter.
Wherein the repair indication comprises: correct time information, i.e. the time of the current moment.
It should be noted that the error of the clock of the electric energy meter can be determined according to the power failure time interval of the electric energy meter, so that the correct time information of the clock of the electric energy meter can be obtained, and the electric energy meter can complete the correction of the clock of the electric energy meter according to the correct time information.
According to the clock correction method for the electric energy meter, provided by the embodiment of the invention, the real power-off time and the real power-on time of the electric energy meter can be calculated by acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator, the power-off time interval of the electric energy meter can be obtained according to the voltage load curve, the clock of the electric energy meter can be further repaired, and the correction of the clock in the electric energy meter can be more accurately realized.
Fig. 2 is a schematic flow chart illustrating a process of determining a power outage time interval of an electric energy meter according to an embodiment of the present invention, referring to fig. 2, in the embodiment of the present invention, S30: according to the voltage load curve, the real power-off time and the real power-on time of the electric energy meter, determining the power-off time interval of the electric energy meter, wherein the power-off time interval comprises the following steps:
s310: and collecting a voltage load curve of the electric energy meter.
It should be noted that the concentrator may acquire and obtain a voltage load curve of the electric energy meter within a certain time range, that is, may acquire a voltage change condition of the electric energy meter within the time range.
S320: and acquiring the credibility of the real power-off time and the real power-on time according to the voltage load curve of the electric energy meter.
It should be noted that, the calculated credibility of the real power-off time and the real power-on time can be determined according to the voltage variation condition of the electric energy meter in the real power-off time and the real power-on time.
S330: and determining the power failure time interval of the electric energy meter according to the reliability.
It should be noted that, if the actual blackout time is obtained and is credible, the time of starting the blackout event can be determined; correspondingly, if the real power-on time is obtained and the power-off time is credible, the time of the power-off event ending can be determined, and then the power-off interval of the electric energy meter can be determined.
Fig. 3 is a schematic flow chart of determining the reliability according to an embodiment of the present invention, referring to fig. 3, in an embodiment of the present invention, S320: the method for judging the credibility of the real power-off time and the real power-on time according to the voltage load curve of the electric energy meter comprises the following steps:
s321: and (4) performing second zeroing processing on the real power-off time and the real power-on time to obtain reset power-off time and reset power-on time.
It should be noted that the zeroing of the number of seconds means that the time values of the real power-off time and the real power-on time are accurate to minutes, and the corresponding number of seconds is cut off, so as to obtain the reset power-off time T 1 ' and reset Power on time T 2 ’。
S322: and respectively judging whether a curve interval corresponding to the reset power-off time and a curve interval corresponding to the reset power-on time exist in the voltage load curve.
It should be noted that, when the curve interval corresponding to the reset power off time is judged, the reset power off time T may be acquired through the collection of the concentrator 1 ' and voltage load curves corresponding to reset power-off time after a certain time interval. Illustratively, a certain time interval of 1 minute may be selected, and since the unit of the reset blackout time is accurate to one minute, the reset blackout time after the certain time interval may be represented as T 1 ’+1。T 1 To T 1 ' +1 is the curve interval corresponding to the reset power-off time. Reset power off time T 1 ' corresponding Voltage load Curve is D 1 Reset power off time T after a certain time interval 1 ' +1 corresponds to a voltage load curve D 1 ’。
Correspondingly, when the curve interval corresponding to the reset power-on time is judged, the reset power-on time T can be acquired through the concentrator 2 ' and voltages corresponding to reset power-on time after a certain time intervalLoad curve. Illustratively, the certain time interval may be selected to be 1 minute, and since the unit of the reset power-on time is accurate to one minute, the reset power-on time after the certain time interval may be represented as T 2 ’+1。T 2 To T 2 ' +1 is the curve interval corresponding to the reset power-on time. Reset power-on time T 2 ' corresponding Voltage load Curve is D 2 Reset power-on time T after a certain time interval 2 ' +1 corresponds to a voltage load curve D 2 ’。
S323: and if the curve interval corresponding to the reset power failure time exists, the real power failure time is credible.
In addition, if D is 1 Having a voltage value, D 1 ' without voltage value, D is considered 1 Effective, D 1 'invalid', then the true blackout time T can be determined 1 Credibility; otherwise, the real power failure time T can be judged 1 And is not trusted.
S324: and if the curve interval corresponding to the reset power-on time exists, the real power-on time is credible.
In addition, if D is 2 Having no voltage value, D 2 ' having a voltage value, D is considered 2 Ineffective, D 2 'effective', then the true power-on time T can be determined 2 Credibility; otherwise, the real power-on time T can be determined 2 And is not trusted.
In the embodiment of the invention, the credibility of the real power-off time and the real power-on time can be more accurately judged by judging whether the voltage value exists in the voltage load curve in a certain time interval, and the accuracy of clock correction can be further improved.
Fig. 4 is a schematic flow chart of obtaining a time difference according to an embodiment of the present invention, referring to fig. 4, in an embodiment of the present invention, S10: obtaining a time difference between a clock of the electric energy meter and a clock of the concentrator, comprising:
s110: and checking whether the historical records have the time difference between the electric energy meter clock and the concentrator clock.
It should be noted that, the concentrator can be usedVarious information of the electric energy meter is obtained in time, so that power failure events of the electric energy meter can be collected and stored in a historical record. When a power failure event occurs, whether the power failure event is stored in the historical record or not can be firstly inquired, and then the time difference between the power failure event and the clock of the electric energy meter and the clock of the concentrator can be directly obtained from the record. If there is a time difference, the time difference is considered to be the time difference before the power failure of the electric energy meter, namely delta T a 。
S120: and if the current clock does not exist, acquiring the current clock of the electric energy meter, and calculating and acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator according to the current clock of the electric energy meter and the current clock of the concentrator.
If the power failure event does not exist in the record, the Δ T needs to be acquired and calculated by the above-mentioned method a And Δ T b The value of (c).
Fig. 5 is a schematic structural diagram of a clock correction apparatus of an electric energy meter according to an embodiment of the present invention, and referring to fig. 5, another aspect of the embodiment of the present invention provides a clock correction apparatus of an electric energy meter, which is applied to a concentrator, the concentrator is electrically connected to the electric energy meter, and the apparatus includes: an acquisition module 100, a calculation module 200, a determination module 300, and a repair module 400.
The obtaining module 100 is configured to obtain a time difference between a clock of the electric energy meter and a clock of the concentrator.
And the calculating module 200 is configured to calculate and obtain a real power-off time and a real power-on time of the electric energy meter according to the time difference.
The determining module 300 is configured to determine a power outage time interval of the electric energy meter according to a voltage load curve, a real power outage time, and a real power up time of the electric energy meter.
The repair module 400 is configured to send a clock repair instruction to the electric energy meter according to the power outage time interval of the electric energy meter, where the repair instruction includes: correct time information.
Optionally, the determining module 300 is specifically configured to: collecting a voltage load curve of the electric energy meter; acquiring the credibility of the real power-off time and the real power-on time according to the voltage load curve of the electric energy meter; and determining the power failure time interval of the electric energy meter according to the reliability.
Optionally, the determining module 300 is further configured to: performing second zeroing processing on the real power-off time and the real power-on time to obtain reset power-off time and reset power-on time; respectively judging whether a curve interval corresponding to reset power-off time and a curve interval corresponding to reset power-on time exist in a voltage load curve; if a curve interval corresponding to the reset power failure time exists, the real power failure time is credible; and if the curve interval corresponding to the reset power-on time exists, the real power-on time is credible.
Optionally, the obtaining module 100 is specifically configured to: checking whether a time difference between the electric energy meter clock and the concentrator clock exists in the historical record; and if the clock does not exist, acquiring the current clock of the electric energy meter, and calculating and acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator according to the current clock of the electric energy meter and the current clock of the concentrator.
Fig. 6 is a schematic structural diagram of a computer device according to an embodiment of the present invention, and referring to fig. 6, in another aspect of the embodiment of the present invention, a computer device is provided, which includes: the memory 500 and the processor 600, wherein the memory 500 stores a computer program operable on the processor 600, and the processor 600 implements the clock correction method of the electric energy meter when executing the computer program.
In another aspect of the embodiments of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the method for clock correction of an electric energy meter is implemented.
According to the clock correction device, equipment and storage medium of the electric energy meter, provided by the embodiment of the invention, the real power-off time and the real power-on time of the electric energy meter can be calculated by acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator, the power-off time interval of the electric energy meter can be obtained according to the voltage load curve, the clock of the electric energy meter is further repaired, and the correction of the clock in the electric energy meter can be more accurately realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method for clock correction of an electric energy meter, applied to a concentrator electrically connected to the electric energy meter, the method comprising:
acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator;
calculating and acquiring the real power-off time and the real power-on time of the electric energy meter according to the time difference;
determining a power failure time interval of the electric energy meter according to a voltage load curve of the electric energy meter, the real power failure time and the real power-on time, wherein the voltage load curve is used for representing the change of load voltage of the electric energy meter along with time;
according to the power failure time interval of the electric energy meter, sending a clock repair instruction to the electric energy meter, wherein the repair instruction comprises: correct time information;
determining the power failure time interval of the electric energy meter according to the voltage load curve of the electric energy meter, the real power failure time and the real power-on time, wherein the determining comprises the following steps:
collecting a voltage load curve of the electric energy meter;
acquiring the credibility of the real power-off time and the real power-on time according to the voltage load curve of the electric energy meter;
and determining the power failure time interval of the electric energy meter according to the credibility.
2. The method of claim 1, wherein said obtaining the credibility of the real blackout time and the real power-up time according to the voltage load curve of the electric energy meter comprises:
performing second zeroing processing on the real power-off time and the real power-on time to obtain reset power-off time and reset power-on time;
respectively judging whether a curve interval corresponding to the reset power-off time and a curve interval corresponding to the reset power-on time exist in a voltage load curve;
if the curve interval corresponding to the reset power failure time exists, the real power failure time is credible; and/or the presence of a gas in the gas,
and if the curve interval corresponding to the reset power-on time exists, the real power-on time is credible.
3. The method of claim 1, wherein obtaining the time difference between the power meter clock and the concentrator clock comprises:
checking whether a time difference between the electric energy meter clock and the concentrator clock exists in a historical record;
and if the current clock does not exist, acquiring the current clock of the electric energy meter, and calculating and acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator according to the current clock of the electric energy meter and the current clock of the concentrator.
4. A clock correction device for an electric energy meter, characterized in that it is applied to a concentrator, said concentrator being electrically connected to the electric energy meter, said device comprising: the device comprises an acquisition module, a calculation module, a determination module and a repair module;
the acquisition module is used for acquiring the time difference between the electric energy meter clock and the concentrator clock;
the calculation module is used for calculating and acquiring the real power-off time and the real power-on time of the electric energy meter according to the time difference;
the determining module is used for determining a power failure time interval of the electric energy meter according to a voltage load curve of the electric energy meter, the real power failure time and the real power-on time, wherein the voltage load curve is a curve for representing the change of load voltage of the electric energy meter along with time;
the repair module is used for sending a clock repair instruction to the electric energy meter according to the power failure time interval of the electric energy meter, wherein the repair instruction comprises: correct time information;
the determining module is specifically configured to:
collecting a voltage load curve of the electric energy meter;
acquiring the credibility of the real power-off time and the real power-on time according to the voltage load curve of the electric energy meter;
and determining the power failure time interval of the electric energy meter according to the credibility.
5. The apparatus of claim 4, wherein the determination module is specifically configured to:
performing second zeroing processing on the real power-off time and the real power-on time to obtain reset power-off time and reset power-on time;
respectively judging whether a curve interval corresponding to the reset power-off time and a curve interval corresponding to the reset power-on time exist in a voltage load curve;
if the curve interval corresponding to the reset power failure time exists, the real power failure time is credible; and/or the presence of a gas in the gas,
and if the curve interval corresponding to the reset power-on time exists, the real power-on time is credible.
6. The apparatus of claim 4, wherein the acquisition module is specifically configured to:
checking whether a time difference between the electric energy meter clock and the concentrator clock exists in a historical record;
and if the current clock of the electric energy meter does not exist, acquiring the current clock of the electric energy meter, and calculating and acquiring the time difference between the clock of the electric energy meter and the clock of the concentrator according to the current clock of the electric energy meter and the current clock of the concentrator.
7. A computer device, comprising: memory in which a computer program is stored which is executable on the processor, and a processor which, when executing the computer program, carries out the steps of the method according to any one of the preceding claims 1 to 3.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 3.
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| CN107732340B (en) * | 2017-10-27 | 2019-11-08 | 宁波三星医疗电气股份有限公司 | A kind of clock restorative procedure based on intelligent power terminal clock battery undervoltage |
| CN108092731B (en) * | 2017-12-28 | 2019-04-12 | 国网山东省电力公司聊城供电公司 | A kind of method of clocking error when accurate school |
| CN108469725B (en) * | 2018-03-27 | 2020-06-26 | 国网河北省电力有限公司电力科学研究院 | Clock timing method and terminal equipment |
| CN108616321B (en) * | 2018-04-28 | 2019-08-09 | 广州供电局有限公司 | Clock synchronizing method, device, computer equipment and the storage medium of electric energy meter |
| CN110320791B (en) * | 2019-06-20 | 2021-08-20 | 国网湖南省电力有限公司 | Clock management method and device for electricity consumption information acquisition system |
| CN110492962B (en) * | 2019-08-23 | 2021-02-23 | 宁波迦南智能电气股份有限公司 | Electric energy meter and concentrator electricity accurate time synchronization method |
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