CN116684031A - Clock correction method and related device of intelligent electric energy meter - Google Patents
Clock correction method and related device of intelligent electric energy meter Download PDFInfo
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application discloses a clock correction method and a related device of an intelligent electric energy meter, wherein the clock correction method comprises the following steps: when the operation and maintenance module is electrified, acquiring clock information of the intelligent electric energy meter, and comparing and correcting with the clock of the operation and maintenance module to enable the clocks of the intelligent electric energy meter and the operation and maintenance module to be synchronous; when the operation and maintenance module receives the broadcast clock of the HPLC module, comparing and analyzing the broadcast clock with the self clock of the operation and maintenance module to obtain a correction clock, so that the intelligent ammeter corrects according to the correction clock; when the operation and maintenance module does not receive the broadcast clock in the preset time, performing state analysis according to the operation parameters of the intelligent electric energy meter, and triggering Bluetooth modules of other intelligent electric energy meters according to the state analysis result, so that a plurality of Bluetooth modules broadcast timing information; and the Bluetooth module of the operation and maintenance module receives a plurality of timing information and corrects the clock of the intelligent electric energy meter according to the timing information. Thereby solving the technical problems of high cost and low efficiency in the prior art.
Description
Technical Field
The application relates to the technical field of electric energy meters, in particular to a clock correction method and a related device of an intelligent electric energy meter.
Background
Today, the electric energy meters operated in the power grids of various regions in China have a considerable proportion of clock anomalies, which are far from the standard Beijing time. After clock abnormality, settlement time and freezing time are affected, and the problems of low acquisition rate, overlarge line loss and the like are caused.
Aiming at the problem of clock abnormality, the existing mainstream schemes have the following three types: scheme one, broadcast timing: the master station issues standard time in a broadcast command mode, the electric energy meter compares the time with the self time after receiving the broadcast time correction time, if the time correction is within a legal time range (+ -5 minutes or (+ -10 minutes), the time correction is carried out, and if the time correction is beyond the time, the time is not corrected. The scheme has high efficiency, but the action surface is narrow, and the final effect is poor. Scheme II, point-to-point timing: after the master station collects the clock of the electric energy meter, the electric energy meter with the out-of-tolerance clock is screened out, point-to-point clock calibration is carried out one by one, the encryption server is accessed to carry out data encryption in the calibration process, the scheme can realize accurate time synchronization, but the efficiency is low, the burden of the master station, the encryption server and the concentrator is heavy, and the collection task can be influenced. Scheme three, manual service: the special person is arranged to correct the clock of the electric energy meter through the local infrared channel or replace the electric energy meter, and the scheme is low in efficiency and high in cost.
Disclosure of Invention
The application provides a clock correction method and a related device of an intelligent electric energy meter, which are used for solving the technical problems of high cost and low efficiency in the prior art.
In view of this, a first aspect of the present application provides a clock correction method of an intelligent electric energy meter, where an HPLC module of the intelligent electric energy meter is provided with an operation and maintenance module, and the operation and maintenance module is connected to a second signal output port of the intelligent electric energy meter and has a wireless communication module, and the method includes:
when the operation and maintenance module is electrified, acquiring clock information of the intelligent electric energy meter, and comparing and correcting with the clock of the operation and maintenance module to enable the intelligent electric energy meter to be synchronous with the clock of the operation and maintenance module;
when the operation and maintenance module receives the broadcast clock T1 of the HPLC module, comparing and analyzing the broadcast clock T1 with the self clock T2 of the operation and maintenance module to obtain a correction clock T3, so that the intelligent ammeter corrects according to the correction clock T3;
when the operation and maintenance module does not receive the broadcasting clock T1 in preset time, performing state analysis according to the operation parameters of the intelligent electric energy meter, and triggering Bluetooth modules of other intelligent electric energy meters according to the state analysis result, so that a plurality of Bluetooth modules broadcast timing information;
and the Bluetooth module of the operation and maintenance module receives a plurality of timing information and corrects the clock of the intelligent electric energy meter according to the timing information.
Optionally, the bluetooth module of the operation and maintenance module receives a plurality of timing information, corrects the clock of the intelligent electric energy meter according to the timing information, and then further includes:
the operation and maintenance module starts an interrupt capturing function according to a preset period, captures a second signal of the intelligent electric energy meter through interrupt capturing work, and records capturing time;
and comparing and analyzing the capturing time with a self clock T2 to determine accumulated deviation time, so that the clock of the intelligent electric energy meter is corrected according to the accumulated deviation time.
Optionally, the state analysis is performed according to the operation parameters of the intelligent electric energy meter, and the bluetooth modules of other intelligent electric energy meters are triggered according to the state analysis result, so that the plurality of bluetooth modules broadcast timing information, specifically including:
and sequentially judging whether the time and time format of the operation and maintenance module is consistent with that of the intelligent electric energy meter, whether the battery voltage of the intelligent electric energy meter is normal, whether the accuracy of the intelligent electric energy meter is not more than a preset value, whether the operation and maintenance module receives a broadcast clock T1 in the preset time, and if so, triggering Bluetooth modules of other intelligent electric energy meters to broadcast timing information.
Optionally, the bluetooth module of the operation and maintenance module receives a plurality of timing information, corrects the clock of the intelligent ammeter according to the timing information, and specifically includes:
the Bluetooth module of the operation and maintenance module receives a plurality of timing information, wherein the timing information comprises: time of last broadcasting and time correction and clock precision of the equipment;
and comparing the clock precision of the intelligent electric energy meter broadcasted by each Bluetooth module, determining the optimal clock precision of the intelligent electric energy meter, and acquiring the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter, thereby correcting the clock of the intelligent electric energy meter according to the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter.
A second aspect of the present application provides a clock correction system for an intelligent ammeter, the system comprising:
the synchronous unit is used for collecting clock information of the intelligent electric energy meter and comparing and correcting with the clock of the operation and maintenance module when the operation and maintenance module is electrified, so that the intelligent electric energy meter is synchronous with the clock of the operation and maintenance module;
the first correction unit is used for comparing and analyzing the broadcast clock T1 with the self clock T2 of the operation and maintenance module to obtain a correction clock T3 when the operation and maintenance module receives the broadcast clock T1 of the HPLC module, so that the intelligent ammeter corrects according to the correction clock T3;
the analysis unit is used for carrying out state analysis according to the operation parameters of the intelligent electric energy meter when the operation and maintenance module does not receive the broadcast clock T1 in preset time, and triggering Bluetooth modules of other intelligent electric energy meters according to the state analysis result so that a plurality of Bluetooth modules broadcast timing information;
and the second correction unit is used for receiving a plurality of timing information by the Bluetooth module of the operation and maintenance module and correcting the clock of the intelligent electric energy meter according to the timing information.
Optionally, the method further comprises:
the capturing unit is used for starting an interrupt capturing function according to a preset period by the operation and maintenance module, capturing a second signal of the intelligent electric energy meter through interrupt capturing work, and recording capturing time;
and the third correction unit is used for comparing and analyzing the capturing time and the self clock T2 and determining the accumulated deviation time so as to correct the clock of the intelligent electric energy meter according to the accumulated deviation time.
Optionally, the analysis unit is specifically configured to:
when the operation and maintenance module does not receive the broadcast clock T1 in the preset time, judging whether the time and time format of the operation and maintenance module and the intelligent electric energy meter are consistent, whether the battery voltage of the intelligent electric energy meter is normal, whether the precision of the intelligent electric energy meter is not greater than a preset value, whether the operation and maintenance module receives the broadcast clock T1 in the preset time or not, and if yes, triggering Bluetooth modules of other intelligent electric energy meters to broadcast timing information.
Optionally, the second correction unit is specifically configured to:
the Bluetooth module of the operation and maintenance module receives a plurality of timing information, wherein the timing information comprises: time of last broadcasting and time correction and clock precision of the equipment;
and comparing the clock precision of the intelligent electric energy meter broadcasted by each Bluetooth module, determining the optimal clock precision of the intelligent electric energy meter, and acquiring the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter, thereby correcting the clock of the intelligent electric energy meter according to the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter.
A third aspect of the present application provides a clock correction device for an intelligent ammeter, the device comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the steps of the clock correction method of the intelligent ammeter according to the first aspect according to the instructions in the program code.
A fourth aspect of the present application provides a computer-readable storage medium storing program code for executing the clock correction method of the intelligent ammeter according to the first aspect.
From the above technical scheme, the application has the following advantages:
the application provides a clock correction method of an intelligent electric energy meter, wherein an HPLC module of the intelligent electric energy meter is provided with an operation and maintenance module, the operation and maintenance module is connected with a second signal output port of the intelligent electric energy meter and is provided with a wireless communication module, and the method comprises the following steps: when the operation and maintenance module is electrified, acquiring clock information of the intelligent electric energy meter, and comparing and correcting with the clock of the operation and maintenance module to enable the clocks of the intelligent electric energy meter and the operation and maintenance module to be synchronous; when the operation and maintenance module receives a broadcast clock T1 of the HPLC module, comparing and analyzing the broadcast clock T1 with a self clock T2 of the operation and maintenance module to obtain a correction clock T3, so that the intelligent ammeter corrects according to the correction clock T3; when the operation and maintenance module does not receive the broadcasting clock T1 in the preset time, performing state analysis according to the operation parameters of the intelligent electric energy meter, and triggering Bluetooth modules of other intelligent electric energy meters according to the state analysis result, so that a plurality of Bluetooth modules broadcast timing information; and the Bluetooth module of the operation and maintenance module receives a plurality of timing information and corrects the clock of the intelligent electric energy meter according to the timing information.
Further, the operation and maintenance module starts an interrupt capturing function according to a preset period, captures a second signal of the intelligent electric energy meter through interrupt capturing work, and records capturing time; and comparing and analyzing the capturing time with the self clock T2 to determine the accumulated deviation time, so that the clock of the intelligent electric energy meter is corrected according to the accumulated deviation time. Compared with the prior art, the correction method does not need to access the encryption server, and reduces the tasks of a master station, an encryption machine server and a concentrator; the clock correction device can reliably, conveniently and flexibly correct the clock of the electric energy meter, thereby solving the technical problems of high cost and low efficiency in the prior art.
Drawings
Fig. 1 is a schematic flow chart of an embodiment of a clock correction method of an intelligent electric energy meter according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an embodiment of a clock correction system of an intelligent ammeter according to an embodiment of the present application.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, in the clock correction method of an intelligent electric energy meter provided in the embodiment of the application, an operation and maintenance module is provided on an HPLC module of the intelligent electric energy meter, and the operation and maintenance module is connected with a second signal output port of the intelligent electric energy meter and provided with a wireless communication module, including:
step 101, when the operation and maintenance module is electrified, acquiring clock information of the intelligent electric energy meter, and comparing and correcting with the clock of the operation and maintenance module to enable the clocks of the intelligent electric energy meter and the operation and maintenance module to be synchronous;
it should be noted that, the operation and maintenance module needs to collect the clock information of the intelligent electric energy meter every day or every time when the electric energy meter is powered on, and compares the clock information with the clock of the operation and maintenance module to correct, so that the operation and maintenance module is synchronous with the clock of the electric energy meter.
Step 102, when the operation and maintenance module receives a broadcast clock T1 of the HPLC module, comparing and analyzing the broadcast clock T1 with a self clock T2 of the operation and maintenance module to obtain a correction clock T3, so that the intelligent ammeter corrects according to the correction clock T3;
the HPLC module is called a broadband carrier module, is mainly used for an electric energy meter, and can realize the functions of data transmission, data storage, data processing and the like of the electric energy meter, the concentrator and the master station on a power medium.
When the operation and maintenance module receives the broadcast clock T1 of the HPLC module, the broadcast clock T1 and the self clock T2 of the operation and maintenance module are compared and analyzed to obtain a correction clock T3, so that the intelligent ammeter corrects according to the correction clock T3, and the specific correction logic is as follows:
when T1-T2>300 seconds, t3=t2+300 seconds;
when T2-T1>300 seconds, t3=t2-300 seconds;
when |t1-t2| < =300 seconds, t3=t1.
Step 103, when the operation and maintenance module does not receive the broadcasting clock T1 in the preset time, performing state analysis according to the operation parameters of the intelligent electric energy meter, and triggering Bluetooth modules of other intelligent electric energy meters according to the state analysis result, so that a plurality of Bluetooth modules broadcast timing information;
it should be noted that, if the master station cannot issue a broadcast timing command due to a signal or communication link problem, the operation and maintenance module of the present application triggers the bluetooth device to start over-the-air broadcast, where the broadcast information includes the following contents: the device broadcasts the time of timing last time, the current clock, the clock precision of the device and the address of the electric energy meter.
And 104, the Bluetooth module of the operation and maintenance module receives a plurality of timing information, and corrects the clock of the intelligent electric energy meter according to the timing information.
The bluetooth device of the operation and maintenance module is a sender and a receiver, receives broadcasting information of surrounding bluetooth, judges time to be corrected according to clock precision in the broadcasting timing information and time of last 1 broadcasting timing, and judges the priority use of clock precision and high precision under the same time when the time of last 1 broadcasting timing is closer to priority use. The screening method determines that one device is used as a host for broadcasting timing, the Bluetooth module is used for regular broadcasting timing, and other devices are used as slaves, receive broadcasting timing commands of the host and correct clocks.
Further, in one embodiment, the clock correction method of the intelligent ammeter further includes:
the operation and maintenance module starts an interrupt capturing function according to a preset period, captures a second signal of the intelligent electric energy meter through interrupt capturing work, and records capturing time; and comparing and analyzing the capturing time with the self clock T2 to determine the accumulated deviation time, so that the clock of the intelligent electric energy meter is corrected according to the accumulated deviation time.
When broadcasting timing tasks are not issued at regular time every day, the operation and maintenance module can start second signal acquisition of the electric energy meter, the acquisition time is 3 minutes every week, and then clock compensation span is calculated according to acquired clock precision to perform clock adjustment.
The method for collecting the second signal of the electric energy meter by the operation and maintenance module comprises the following steps:
on the hardware interface, an MCU interrupt pin on the operation and maintenance module is connected with a second signal output of the electric energy meter;
the operation and maintenance module starts an interrupt capturing function (the internal main frequency is 48 MHz) at regular time (2:00 a day every week), and captures a 1HZ second signal interrupt sent by the electric energy meter through the interrupt capturing function;
continuously capturing 180 seconds of periodic signals (3 minutes), and calculating the capturing time of capturing interruption;
for example: the acquisition time of the 180 second signal is 180001.80ms, the standard time is 180000.00ms, and the clock of the electric energy meter is slow from the data. Clock accuracy= ((180000.00-180001.80)/180000.00) ×86400= -0.864 seconds/day.
Accumulated deviation of 7 days = -0.864 x 7 = -6.048 seconds.
I.e. finally clock adjustment is performed with 6 seconds in advance of the current time.
The clock accuracy of the intelligent meter is improved through the cooperation of the three methods.
The application does not need to access the encryption server, and reduces the tasks of the master station, the encryption machine server and the concentrator. After receiving the broadcast timing, the application automatically matches reasonable time and generates a broadcast timing command to correct the time of the electric energy meter.
1. The application master station issues broadcast timing by application example to be further described below.
Implementation environment: a meter box is internally provided with 3 electric energy meters and a concentrator. The table address is: 1 to 3; the 3 tables are not of the same time, and the specific cases are as follows:
table 1: advanced Beijing time for 10 minutes;
table 2: lag Beijing time for 15 minutes;
table 3: lag Beijing time for 5 minutes;
step1: the first day, the master station issues a broadcast timing command with Beijing time;
step2: and the concentrator receives the broadcast timing command of the master station and transmits the broadcast timing command to the HPLC modules on the 3 electric energy meters through the power carrier medium.
Step3: the operation and maintenance module receives the broadcast timing command of the HPLC module and analyzes the broadcast timing time;
step4: the operation and maintenance module determines a correction time T3 through the correction logic;
step5: the operation and maintenance module issues correction time T3;
step6:3 tables receive the broadcast timing command, correct the own time, and the corrected time is as follows:
table 1: advanced Beijing time 5 minutes;
table 2: lag Beijing time for 10 min;
table 3: the time is consistent with Beijing time;
step7: the next day, steps 1 to 5 were repeated.
Step8:3 tables receive the broadcast timing command, correct the own time, and the corrected time is as follows:
table 1: the time is consistent with Beijing time;
table 2: lag Beijing time for 5 minutes;
table 3: the time is consistent with Beijing time;
step9: on the third day, steps 1 to 5 were repeated.
Step10:3 tables receive the broadcast timing command, correct the own time, and the corrected time is as follows:
table 1: the time is consistent with Beijing time;
table 2: the time is consistent with Beijing time;
table 3: the time is consistent with Beijing time;
2. the Bluetooth issuing broadcast timing of the application is further described below by an application example.
Implementation environment: 3 electric energy meters are arranged in one meter box. The table address is: 1 to 3; the 3 tables are not of the same time, and the specific cases are as follows:
table 1:
the time of last 1 broadcast timing is 2022, 08, 15, 20:13:00, and the clock precision is 0.3 seconds/day.
Table 2:
the time of last 1 broadcast timing is 2022, 08, 15, 20:13:00, and the clock precision is 0.5 seconds/day.
Table 3:
the time of the last 1 broadcast time correction is 2022, 08, 06, 20:13:00, and the clock precision is 0.3 seconds/day.
Step1: the method comprises the steps of 2022, 08, 07, 20:13:00, triggering Bluetooth broadcasting when a broadcasting timing command is not received in three hours beyond 24 hours, finding that only the equipment is broadcasting after Bluetooth broadcasting, silencing Bluetooth, and starting an operation and maintenance module to acquire a second signal function of the electric energy meter;
step2: the electric energy meter is broadcast and calibrated by the operation and maintenance module for 2 seconds when the error of the second signal of the electric energy meter collected by the meter three operation and maintenance module is 0.3 seconds/day and the total deviation of 7 days is +2.1 seconds, and the time for adjusting the electric energy meter is slow by 2 seconds, wherein the time for 14 days of 08 months of 2022 and the time for 20:13:00 are respectively;
step3: no broadcast command is received for more than 24 hours in Table one and Table two, the Bluetooth broadcast is triggered, and the Bluetooth broadcast is triggered to send the Bluetooth broadcast after the Bluetooth broadcast on month 08 and 16, 20:13:00. After the three tables are screened according to the broadcast information, a conclusion is obtained: the table is most reliable in time and serves as a host of Bluetooth broadcasting.
Step4: and the first meter sends a broadcast timing command through the Bluetooth module, and the second meter and the third meter receive and perform broadcast timing on the electric energy meter.
The above is a clock correction method of an intelligent electric energy meter provided in the embodiment of the present application, and the following is a clock correction system of an intelligent electric energy meter provided in the embodiment of the present application.
Referring to fig. 2, a clock correction system of an intelligent ammeter according to an embodiment of the present application includes:
the synchronization unit 201 is configured to collect clock information of the intelligent ammeter and compare and correct with a clock of the operation and maintenance module when the operation and maintenance module is powered on, so that the clocks of the intelligent ammeter and the operation and maintenance module are synchronized;
the first correction unit 202 is configured to compare and analyze the broadcast clock T1 with the self clock T2 of the operation and maintenance module to obtain a correction clock T3 when the operation and maintenance module receives the broadcast clock T1 of the HPLC module, so that the intelligent ammeter corrects according to the correction clock T3;
the analysis unit 203 is configured to perform a state analysis according to the operation parameters of the intelligent ammeter when the operation and maintenance module does not receive the broadcast clock T1 in a preset time, and trigger bluetooth modules of other intelligent ammeters according to the state analysis result, so that a plurality of bluetooth modules broadcast timing information;
the second correcting unit 204 is configured to receive a plurality of timing information from the bluetooth module of the operation and maintenance module, and correct the clock of the intelligent ammeter according to the timing information.
Further, in one embodiment, the clock correction system of the intelligent ammeter further comprises:
the capturing unit is used for starting an interrupt capturing function according to a preset period by the operation and maintenance module, capturing a second signal of the intelligent electric energy meter through interrupt capturing work, and recording capturing time;
and the third correction unit is used for comparing and analyzing the capturing time with the self clock T2 and determining the accumulated deviation time so as to correct the clock of the intelligent electric energy meter according to the accumulated deviation time.
Further, in an embodiment of the present application, there is also provided a clock correction device for an intelligent electric energy meter, where the device includes a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the steps of the clock correction method of the intelligent electric energy meter according to the instructions in the program code.
Further, in the embodiment of the application, a computer readable storage medium is provided, and the computer readable storage medium is used for storing program codes, and the program codes are used for executing the clock correction method of the intelligent electric energy meter.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working procedures of the above-described system and unit may refer to the corresponding procedures in the foregoing method embodiments, which are not repeated here.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The utility model provides a clock correction method of intelligent ammeter, its characterized in that, the HPLC module of intelligent ammeter is provided with fortune dimension module, fortune dimension module with intelligent ammeter's second signal delivery outlet links to each other, and has wireless communication module, and the method includes:
when the operation and maintenance module is electrified, acquiring clock information of the intelligent electric energy meter, and comparing and correcting with the clock of the operation and maintenance module to enable the intelligent electric energy meter to be synchronous with the clock of the operation and maintenance module;
when the operation and maintenance module receives the broadcast clock T1 of the HPLC module, comparing and analyzing the broadcast clock T1 with the self clock T2 of the operation and maintenance module to obtain a correction clock T3, so that the intelligent ammeter corrects according to the correction clock T3;
when the operation and maintenance module does not receive the broadcasting clock T1 in preset time, performing state analysis according to the operation parameters of the intelligent electric energy meter, and triggering Bluetooth modules of other intelligent electric energy meters according to the state analysis result, so that a plurality of Bluetooth modules broadcast timing information;
and the Bluetooth module of the operation and maintenance module receives a plurality of timing information and corrects the clock of the intelligent electric energy meter according to the timing information.
2. The clock correction method of an intelligent electric energy meter according to claim 1, wherein the bluetooth module of the operation and maintenance module receives a plurality of timing information, corrects the clock of the intelligent electric energy meter according to the timing information, and further comprises:
the operation and maintenance module starts an interrupt capturing function according to a preset period, captures a second signal of the intelligent electric energy meter through interrupt capturing work, and records capturing time;
and comparing and analyzing the capturing time with a self clock T2 to determine accumulated deviation time, so that the clock of the intelligent electric energy meter is corrected according to the accumulated deviation time.
3. The clock correction method of the intelligent electric energy meter according to claim 1, wherein the state analysis is performed according to the operation parameters of the intelligent electric energy meter, and bluetooth modules of other intelligent electric energy meters are triggered according to the state analysis result, so that a plurality of bluetooth modules broadcast timing information, and the clock correction method specifically comprises the following steps:
and sequentially judging whether the time and time format of the operation and maintenance module is consistent with that of the intelligent electric energy meter, whether the battery voltage of the intelligent electric energy meter is normal, whether the accuracy of the intelligent electric energy meter is not more than a preset value, whether the operation and maintenance module receives a broadcast clock T1 in the preset time, and if so, triggering Bluetooth modules of other intelligent electric energy meters to broadcast timing information.
4. The clock correction method of the intelligent electric energy meter according to claim 1, wherein the bluetooth module of the operation and maintenance module receives a plurality of timing information, corrects the clock of the intelligent electric energy meter according to the timing information, and specifically comprises:
the Bluetooth module of the operation and maintenance module receives a plurality of timing information, wherein the timing information comprises: time of last broadcasting and time correction and clock precision of the equipment;
and comparing the clock precision of the intelligent electric energy meter broadcasted by each Bluetooth module, determining the optimal clock precision of the intelligent electric energy meter, and acquiring the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter, thereby correcting the clock of the intelligent electric energy meter according to the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter.
5. A clock correction system for an intelligent ammeter, comprising:
the synchronous unit is used for collecting clock information of the intelligent electric energy meter and comparing and correcting with the clock of the operation and maintenance module when the operation and maintenance module is electrified, so that the intelligent electric energy meter is synchronous with the clock of the operation and maintenance module;
the first correction unit is used for comparing and analyzing the broadcast clock T1 with the self clock T2 of the operation and maintenance module to obtain a correction clock T3 when the operation and maintenance module receives the broadcast clock T1 of the HPLC module, so that the intelligent ammeter corrects according to the correction clock T3;
the analysis unit is used for carrying out state analysis according to the operation parameters of the intelligent electric energy meter when the operation and maintenance module does not receive the broadcast clock T1 in preset time, and triggering Bluetooth modules of other intelligent electric energy meters according to the state analysis result so that a plurality of Bluetooth modules broadcast timing information;
and the second correction unit is used for receiving a plurality of timing information by the Bluetooth module of the operation and maintenance module and correcting the clock of the intelligent electric energy meter according to the timing information.
6. The system for clock correction of an intelligent ammeter according to claim 5, further comprising:
the capturing unit is used for starting an interrupt capturing function according to a preset period by the operation and maintenance module, capturing a second signal of the intelligent electric energy meter through interrupt capturing work, and recording capturing time;
and the third correction unit is used for comparing and analyzing the capturing time and the self clock T2 and determining the accumulated deviation time so as to correct the clock of the intelligent electric energy meter according to the accumulated deviation time.
7. The clock correction system of an intelligent ammeter according to claim 5, wherein the analysis unit is specifically configured to:
when the operation and maintenance module does not receive the broadcast clock T1 in the preset time, judging whether the time and time format of the operation and maintenance module and the intelligent electric energy meter are consistent, whether the battery voltage of the intelligent electric energy meter is normal, whether the precision of the intelligent electric energy meter is not greater than a preset value, whether the operation and maintenance module receives the broadcast clock T1 in the preset time or not, and if yes, triggering Bluetooth modules of other intelligent electric energy meters to broadcast timing information.
8. The clock correction system of an intelligent ammeter according to claim 5, wherein the second correction unit is specifically configured to:
the Bluetooth module of the operation and maintenance module receives a plurality of timing information, wherein the timing information comprises: time of last broadcasting and time correction and clock precision of the equipment;
and comparing the clock precision of the intelligent electric energy meter broadcasted by each Bluetooth module, determining the optimal clock precision of the intelligent electric energy meter, and acquiring the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter, thereby correcting the clock of the intelligent electric energy meter according to the last broadcasting time correction time corresponding to the optimal clock precision of the intelligent electric energy meter.
9. A clock correction device for an intelligent power meter, the device comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the clock correction method of the intelligent ammeter according to any one of claims 1-4 according to instructions in the program code.
10. A computer readable storage medium for storing program code for performing the clock correction method of the intelligent ammeter according to any one of claims 1-4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117495350A (en) * | 2023-11-06 | 2024-02-02 | 烟台持久钟表有限公司 | Clock operation and maintenance method, system, equipment and storage medium based on clock networking |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117495350A (en) * | 2023-11-06 | 2024-02-02 | 烟台持久钟表有限公司 | Clock operation and maintenance method, system, equipment and storage medium based on clock networking |
| CN117495350B (en) * | 2023-11-06 | 2024-05-24 | 烟台持久钟表有限公司 | Clock operation and maintenance method, system, equipment and storage medium based on clock networking |
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