CN115225244A - Low-voltage integrated reading electric energy meter clock time setting method, device, main equipment and medium - Google Patents
Low-voltage integrated reading electric energy meter clock time setting method, device, main equipment and medium Download PDFInfo
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- CN115225244A CN115225244A CN202210832512.9A CN202210832512A CN115225244A CN 115225244 A CN115225244 A CN 115225244A CN 202210832512 A CN202210832512 A CN 202210832512A CN 115225244 A CN115225244 A CN 115225244A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The embodiment of the invention discloses a method and a device, wherein the method comprises the following steps: sending a recall test command to corresponding slave equipment according to a calibration signal, receiving feedback information returned by the slave equipment based on the recall test command, and determining time to be calibrated of the corresponding slave equipment according to the sending time of the recall test command, the time carried by the feedback information and the receiving time of the feedback information, wherein the slave equipment is directly controlled by the master equipment or directly and indirectly controlled by the master equipment, and when the master equipment is non-master equipment, the calibration signal is generated based on the feedback information; and determining a clock deviation value of the time to be calibrated by taking the body clock as a reference, and performing time synchronization operation on the slave equipment when an average deviation value corresponding to the clock deviation value meets a preset calibration condition. The aim of carrying out time synchronization in a grading way according to the set time sequence is achieved, and the flexibility and the timeliness of the time synchronization operation of the low-voltage meter reading system are improved.
Description
Technical Field
The embodiment of the invention relates to the field of power equipment, in particular to a clock time setting method, a clock time setting device, main equipment and a medium for a low-voltage collecting and reading electric energy meter.
Background
Whether the clock of the electric energy meter is correct or not plays an important role in electric energy calculation and time-of-use electricity price charging, and the frequency of the abnormal situation of the clock of the intelligent electric energy meter gradually increases along with the continuous increase of the running time of the intelligent electric energy meter.
At present, the clock abnormity problem of the low-voltage integrated electric energy meter is uniformly processed by a master station, and the clock maintenance and treatment of each level of electric power equipment are generally carried out by adopting a single method of timing.
In summary, the clock timing method of the first conventional integrated electric energy meter at least has the problem of low flexibility.
Disclosure of Invention
The embodiment of the invention provides a clock time setting method, a clock time setting device, master equipment and a medium of a low-voltage integrated electric energy meter, and solves the problem that the existing clock time setting method of a first integrated electric energy meter at least has low flexibility.
In a first aspect, an embodiment of the present invention provides a method for clock synchronization of a low-voltage meter reading electric energy meter, where the method includes:
sending a recall test command to corresponding slave equipment according to a calibration signal, receiving feedback information returned by the slave equipment based on the recall test command, and determining time to be calibrated of the corresponding slave equipment according to the recall test command sending time, time carried by the feedback information and the receiving time of the feedback information, wherein the slave equipment is directly controlled by the master equipment or directly and indirectly controlled by the master equipment, and when the master equipment is non-master equipment, the calibration signal is generated based on the feedback information;
and determining a clock deviation value of the time to be calibrated by taking the body clock as a reference, and performing time synchronization operation on the slave equipment when an average deviation value corresponding to the clock deviation value meets a preset calibration condition.
In a second aspect, an embodiment of the present invention further provides a device for clock synchronization of a low-voltage energy-collecting meter, where the device includes:
the time acquisition module is used for sending a recall test command to corresponding slave equipment according to a calibration signal, receiving feedback information returned by the slave equipment based on the recall test command, and determining time to be calibrated of the corresponding slave equipment according to the recall test command sending time, time carried by the feedback information and receiving time of the feedback information, wherein the slave equipment is directly controlled by the master equipment or directly and indirectly controlled by the master equipment, and when the master equipment is non-master equipment, the calibration signal is generated based on the feedback information;
and the time synchronization module is used for determining the clock deviation value of the time to be calibrated by taking the body clock as a reference and performing time synchronization operation on the slave equipment when the average deviation value corresponding to the clock deviation value meets a preset calibration condition.
In a third aspect, an embodiment of the present invention further provides a master device, where the master device includes:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a low voltage meter reading electric energy meter clock pair method as in any embodiment.
In a fourth aspect, embodiments of the present invention further provide a storage medium containing computer executable instructions, which when executed by a computer processor, are configured to perform the method for clock-pairing low-voltage electrical sheet meters according to any of the embodiments.
According to the method and the device, the recall test command is sent to the corresponding slave equipment according to the calibration signal, the feedback information returned by the slave equipment based on the recall test command is received, and the time to be calibrated of the corresponding slave equipment is determined according to the sending time of the recall test command, the time carried by the feedback information and the receiving time of the feedback information. And determining a clock deviation value of the time to be calibrated by taking the body clock as a reference, and performing time synchronization operation on the slave equipment when an average deviation value corresponding to the clock deviation value meets a preset calibration condition. The aim of grading time synchronization according to the set time sequence is achieved, and the flexibility and timeliness of the time synchronization operation of the low-voltage meter reading system are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a clock synchronization method for a low-voltage meter reading according to an embodiment of the present invention;
fig. 2 is a structural block diagram of a clock time setting device of a low-voltage meter reading according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a master device according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying 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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The low-voltage centralized meter reading system mainly utilizes the information acquisition system to realize the unified planning, the unified coordination and the unified control of all the meter reading links, thereby achieving the purpose of remote automatic meter reading. The electric energy meter comprises main station equipment, an electric energy meter and a concentrator which is connected with the main station equipment and the electric energy meter, or further comprises a collector which is arranged between the concentrator and the electric energy meter.
Example one
Fig. 1 is a flowchart of a clock synchronization method for a low-voltage meter according to an embodiment of the present invention. The technical scheme of the embodiment is suitable for the condition of the low-voltage integrated electric energy meter for the hierarchical clock time setting. The method can be executed by the low-voltage electric energy meter reading and clock time setting device provided by the embodiment of the invention, and the device can be realized in a software and/or hardware mode and is configured in a main equipment processor for application. The method specifically comprises the following steps:
s101, sending a test calling command to corresponding slave equipment according to a calibration signal, receiving feedback information returned by the slave equipment based on the test calling command, and determining time to be calibrated of the corresponding slave equipment according to the test calling command sending time, the time carried by the feedback information and the feedback information receiving time, wherein the slave equipment is directly controlled by the master equipment or directly and indirectly controlled by the master equipment, and when the master equipment is not the master equipment, the calibration signal is generated based on the feedback information.
The master device is not a permanent one with respect to the slave devices. Specifically, when the master device is the master device, the slave device is the concentrator; when the concentrator is the main equipment, the slave equipment is a collector corresponding to the concentrator; when the collector is the master device, the slave device is the electric energy meter corresponding to the collector; or when the master device is the master station device, the slave device is the concentrator; when the concentrator is the master device, the slave devices are the collector corresponding to the concentrator and the electric energy meter corresponding to the collector.
The calibration signal is used for triggering the master device to send a recall test command to the corresponding slave device. When the master device is a master station device, the calibration signal is generated based on the set time, for example, a calibration signal is automatically generated in a time division of 1; and 2, automatically generating another calibration signal in 45-time sharing, sending a test calling command to the concentrator by the master station device based on the calibration signal, and so on, and automatically generating the calibration signal at the 45 th minute of each hour. When the master device is a non-master device, its calibration signal is generated based on the feedback information sent by the master device, for example, the calibration signal is generated at the same time as the feedback information is generated, or the calibration signal is generated when the feedback information is sent out. Therefore, the transmission time of the recall and test command of the back-end equipment of the low-voltage centralized meter reading system is earlier than that of the recall and test command of the front-end equipment, and the clock accuracy of the equipment which is not the main station equipment and is used as the main equipment can be improved by the arrangement, so that the time synchronization accuracy of the whole system is improved.
In one embodiment, the sum of the average of the difference between the receiving time of the feedback information and the sending time of the recall test command and the time carried by the feedback information is used as the time to be calibrated of the slave equipment, wherein the time carried by the feedback information is the time when the recall test command is received by the slave equipment. The time to be calibrated is used for representing the time of the slave device when the master device receives the feedback information. Illustratively, the time for the master device to send the recall command is 4, the time carried by the feedback information is 4. It can be understood that the mean value of the difference between the receiving time of the feedback information and the sending time of the recall test command is used for compensating the time length from the time when the slave device sends the feedback information to the time when the corresponding master device receives the feedback information, and the time length added by the time when the slave device sends the feedback information is the time when the master device receives the corresponding feedback information.
In one embodiment, one master device corresponds to at least two slave devices, and the feedback information carries identification information of the slave devices while carrying time information. For example, one concentrator corresponds to a plurality of collectors, and at this time, feedback information sent to the concentrator by any collector carries time information and also carries a self-identification, so that the concentrator can distinguish the feedback information of different collectors.
In order to reduce the influence of invalid time setting and time setting of the electric meter on meter reading, the sending time of the summoning command is set in the collection idle time, and the number 1 of each month is avoided, for example, the sending time is set in the last 15 minutes of each hour.
S102, determining a clock deviation value of the time to be calibrated by taking the body clock as a reference, and performing time setting operation on the slave equipment when an average deviation value corresponding to the clock deviation value meets a preset calibration condition.
The preset calibration condition comprises an error level corresponding to the average deviation value and a time period corresponding to the error level. The setting of the preset standard condition can realize that different time setting operations are adopted according to the time deviation of the slave equipment, so that the time setting times are effectively reduced and the time setting accuracy is improved.
In one embodiment, if the average deviation value corresponding to the clock deviation values in the preset number or preset time is smaller than a first set time threshold value and accords with a first calibration period, time synchronization operation is carried out on the slave equipment; if the average deviation value corresponding to the clock deviation values in the preset number or preset time is larger than a first set time threshold value, smaller than a second set time threshold value and accords with a second calibration period, performing time synchronization operation on the slave equipment; the first set time threshold is smaller than the second set time threshold, and the first calibration period is larger than the second calibration period.
Take the master device as a concentrator and the electric meter as a slave device as an example. The clock offset value of the electric meter is the concentrator time minus the time to be calibrated. When the clock deviation value of the electric meter is greater than 5 minutes (first set time threshold) and less than 8 minutes (second set time threshold), marking the clock deviation value as the clock out-of-tolerance of the electric meter, recording the time setting times, updating the clock out-of-tolerance times of the electric meter, and calculating the average deviation value corresponding to the clock deviation values of the preset number of the current time, or the average deviation value corresponding to the clock deviation values within the preset time of the current time. When the clock deviation value of the electric energy meter is greater than 8 minutes (a second set time threshold), marking the clock deviation value as the serious out-of-tolerance of the electric energy meter, recording the time setting times, updating the serious out-of-tolerance times of the clock of the electric energy meter, and calculating the average deviation value corresponding to the clock deviation values of the preset number at the current moment or the average deviation value corresponding to the clock deviation values within the preset time at the current moment. When the deviation value of the electric meter clock is less than or equal to 5 minutes (the first set time threshold), marking that the electric meter clock is normal, recording the time synchronization times, updating the normal times of the electric meter clock, and calculating the average deviation value corresponding to the clock deviation value of the preset number of times at the current moment or the average deviation value corresponding to the clock deviation value within the preset time at the current moment. And when the effective feedback information is not received, generating an abnormal identifier and updating the abnormal times. And if the average deviation value is greater than 5 minutes (first set time threshold) and less than 8 minutes (second set time threshold), and the 24-hour time setting operation is not performed, performing the time setting operation on the ammeter. And when the average deviation value is less than 5 minutes (the first set time threshold value) and the time setting operation is not performed in term, the time setting operation is performed on the electric energy meter. And if the average deviation value is larger than R (a second set time threshold), the electric energy meter is not subjected to time setting operation, an electric energy meter clock out-of-tolerance event is generated, and the event is reported to the master station. In this embodiment, the time setting frequency of the slave device with the larger average deviation value level is greater than the time setting frequency of the slave device with the smaller average deviation value level, and this setting can reduce the time setting times without affecting the use of the device. Wherein, the average deviation value level corresponds to a set time threshold. Illustratively, the average deviation value A is greater than the first set time threshold and less than the second set time threshold, and the average deviation value B is less than the first set time threshold, then the level of the average deviation value A is greater than the level of the average deviation value B.
In one embodiment, when the average deviation value is greater than a first set time threshold, the time alignment magnitude for the time-alignment operation is less than or equal to a set alignment time interval, such as the first set time threshold, so that the clock time of the slave device gradually approaches the clock time of the corresponding master device. This embodiment helps to improve the accuracy of the time setting operation.
Compared with the existing master station equipment unified time synchronization technology, the technical scheme of the low-voltage meter-reading electric energy clock time synchronization method provided by the embodiment of the invention has the advantages that when the master equipment is not the master station equipment, the calibration signal is generated based on the feedback information, and the time synchronization operation on the corresponding slave equipment is started according to the calibration signal, so that the purpose of performing graded time synchronization according to the set time sequence is realized, and the flexibility and the timeliness of the time synchronization operation of the low-voltage meter-reading system are improved.
Example two
Fig. 2 is a block diagram of a clock time setting device of a low-voltage meter reading electric energy meter according to an embodiment of the present invention. The device is used for executing the method for clock time comparison of the low-voltage meter reading electric energy meter provided by any embodiment, and the device can be implemented by software or hardware. The device comprises:
the time obtaining module 11 is configured to send a recall test command to a corresponding slave device according to a calibration signal, receive feedback information returned by the slave device based on the recall test command, and determine a time to be calibrated of the corresponding slave device according to recall test command sending time, time carried by the feedback information, and receiving time of the feedback information, where the slave device is a device directly controlled by a master device or a device directly and indirectly controlled by the master device, and when the master device is a non-master device, the calibration signal is generated based on the feedback information;
and the time synchronization module 12 is configured to determine a clock offset value of the time to be calibrated by using the body clock as a reference, and perform time synchronization on the slave device when an average offset value corresponding to the clock offset value meets a preset calibration condition.
Optionally, when the master device is a master device, the slave device is a concentrator; when the concentrator is the main equipment, the slave equipment is a collector corresponding to the concentrator; and when the collector is the master device, the slave device is the electric energy meter corresponding to the collector.
Optionally, when the master device is a master station device, the slave device is a concentrator; when the concentrator is the master device, the slave devices are the collector corresponding to the concentrator and the electric energy meter corresponding to the collector.
Optionally, the time obtaining module is configured to use a sum of a mean value of differences between the receiving time of the feedback information and the sending time of the recall test command and the body time as the time to be calibrated of the slave device.
Optionally, the time synchronization module is configured to perform time synchronization on the slave device if an average deviation value corresponding to the preset number of clock deviation values or the clock deviation values within the preset time is smaller than a first set time threshold and meets a first calibration period; if the average deviation value corresponding to the clock deviation value within the preset times or preset time is larger than a first set time threshold value, smaller than a second set time threshold value and accords with a second calibration period, performing time synchronization operation on the slave equipment; the first set time threshold is smaller than the second set time threshold, and the first calibration period is larger than the second calibration period.
Optionally, the time-setting amplitude of the time-setting operation is smaller than or equal to the set calibration time interval.
Optionally, the time synchronization module is further configured to generate an abnormal event when detecting that an average deviation value corresponding to the clock deviation values in the preset number or preset time is greater than or equal to a second set time threshold; and reporting the abnormal event to the corresponding main equipment, and reporting the abnormal event to the main equipment or forwarding the abnormal event to the main equipment by the corresponding main equipment when the main equipment is not the main equipment.
Compared with the existing master station equipment unified time synchronization technology, the technical scheme of the low-voltage meter-reading electric energy clock time synchronization device provided by the embodiment of the invention has the advantages that when the master equipment is not the master station equipment, the calibration signal is generated based on the feedback information, and the time synchronization operation on the corresponding slave equipment is started according to the calibration signal, so that the purpose of performing graded time synchronization according to the set time sequence is realized, and the flexibility and the timeliness of the time synchronization operation of the low-voltage meter-reading system are improved.
The low-voltage integrated electric energy meter clock time setting device provided by the embodiment of the invention can execute the low-voltage integrated electric energy meter clock time setting method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a master device according to an embodiment of the present invention, and as shown in fig. 3, the master device includes a processor 301, a memory 302, an input device 303, and an output device 304; the number of the processors 301 in the device may be one or more, and one processor 301 is taken as an example in fig. 3; the processor 301, the memory 302, the input means 303 and the output means 304 of the device may be connected by a bus or other means, as exemplified by the bus connection in fig. 3.
The memory 302 is used as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules (e.g., the time obtaining module 11 and the time setting module 12) corresponding to the clock time setting method of the low voltage meter reading in the embodiment of the present invention. The processor 301 executes software programs, instructions and modules stored in the memory 302, so as to execute various functional applications and data processing of the device, that is, implement the low voltage electricity meter clock time setting method described above.
The memory 302 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 302 may further include memory located remotely from the processor 301, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 303 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the apparatus.
The output means 304 may comprise a display device such as a display screen, e.g. of a user terminal.
Example four
Embodiments of the present invention also provide a storage medium containing computer executable instructions, which when executed by a computer processor, perform a method for clock timing of a low voltage electricity meter, the method comprising:
sending a recall test command to corresponding slave equipment according to a calibration signal, receiving feedback information returned by the slave equipment based on the recall test command, and determining time to be calibrated of the corresponding slave equipment according to recall test command sending time, time carried by the feedback information and receiving time of the feedback information, wherein the slave equipment is directly controlled by main equipment or directly and indirectly controlled by the main equipment, and when the main equipment is non-main-station equipment, the calibration signal is generated based on the feedback information;
and determining a clock deviation value of the time to be calibrated by taking the body clock as a reference, and performing time synchronization operation on the slave equipment when the average deviation value corresponding to the clock deviation value meets a preset calibration condition.
Of course, the embodiment of the present invention provides a storage medium containing computer executable instructions, where the computer executable instructions are not limited to the above method operations, and may also perform related operations in the low voltage meter reading and clock time setting method provided in any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute the low voltage integrated power meter clock time setting method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the clock time setting device for the low-voltage integrated electric energy meter, the included units and modules are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. A clock time setting method for a low-voltage meter reading system is characterized by being executed by a master device in the low-voltage meter reading system and comprising the following steps:
sending a recall test command to corresponding slave equipment according to a calibration signal, receiving feedback information returned by the slave equipment based on the recall test command, and determining time to be calibrated of the corresponding slave equipment according to the sending time of the recall test command, the time carried by the feedback information and the receiving time of the feedback information, wherein the slave equipment is directly controlled by the master equipment or directly and indirectly controlled by the master equipment, and when the master equipment is non-master equipment, the calibration signal is generated based on the feedback information;
and determining a clock deviation value of the time to be calibrated by taking the body clock as a reference, and performing time synchronization operation on the slave equipment when an average deviation value corresponding to the clock deviation value meets a preset calibration condition.
2. The method of claim 1,
when the master device is a master station device, the slave device is a concentrator;
when the concentrator is a master device, the slave device is a collector corresponding to the concentrator;
and when the collector is the master device, the slave device is the electric energy meter corresponding to the collector.
3. The method of claim 1,
when the master device is a master station device, the slave device is a concentrator;
and when the concentrator is master equipment, the slave equipment is a collector corresponding to the concentrator and an electric energy meter corresponding to the collector.
4. The method of claim 1, wherein the determining the time to be calibrated of the corresponding slave device according to the recall command sending time, the time carried by the feedback information, and the feedback information receiving time comprises:
and taking the sum of the mean value of the difference value between the receiving time of the feedback information and the sending time of the recall test command and the body time as the time to be calibrated of the slave equipment.
5. The method of claim 1, wherein performing the time tick operation on the slave device when the average deviation value corresponding to the clock deviation value within a preset number of times or a preset time meets a preset calibration condition comprises:
if the average deviation value corresponding to the clock deviation values in the preset number or preset time is smaller than a first set time threshold value and accords with a first calibration period, performing time synchronization operation on the slave equipment;
if the average deviation value corresponding to the clock deviation value within the preset times or preset time is larger than a first set time threshold value, smaller than a second set time threshold value and accords with a second calibration period, carrying out time synchronization operation on the slave equipment;
the first set time threshold is less than the second set time threshold, and the first calibration period is greater than the second calibration period.
6. The method of claim 1, wherein the time tick magnitude of the time tick operation is less than or equal to a set calibration time interval.
7. The method of claim 5, further comprising:
when the average deviation value corresponding to the clock deviation values in the preset number or the preset time is detected to be larger than or equal to a second set time threshold value, generating an abnormal event;
and reporting the abnormal event to the corresponding main equipment, and when the main equipment is not the main equipment, reporting the abnormal event to the main equipment by the corresponding main equipment or forwarding the abnormal event to the main equipment.
8. The utility model provides a low pressure collection is copied electric energy meter clock to time device which characterized in that, sets up the master equipment in the ammeter system, includes:
the time acquisition module is used for sending a recall test command to corresponding slave equipment according to a calibration signal, receiving feedback information returned by the slave equipment based on the recall test command, and determining time to be calibrated of the corresponding slave equipment according to the recall test command sending time, time carried by the feedback information and receiving time of the feedback information, wherein the slave equipment is equipment directly controlled by the master equipment or equipment directly and indirectly controlled by the master equipment, and when the master equipment is non-master equipment, the calibration signal is generated based on the feedback information;
and the time synchronization module is used for determining the clock deviation value of the time to be calibrated by taking the body clock as a reference and performing time synchronization operation on the slave equipment when the average deviation value corresponding to the clock deviation value meets the preset calibration condition.
9. A master device, the master device comprising:
one or more processors;
storage means for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the low voltage meter clock pair method of any of claims 1-7.
10. A storage medium containing computer executable instructions for performing the low voltage meter reading power meter clock time method of any one of claims 1-7 when executed by a computer processor.
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| CN202210832512.9A CN115225244B (en) | 2022-07-14 | 2022-07-14 | Clock time setting method and device for low-voltage meter reading, main equipment and medium |
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| WO2019205498A1 (en) * | 2018-04-28 | 2019-10-31 | 广州供电局有限公司 | Clock synchronization method and device for electric energy meter, computer device and storage medium |
| WO2022048075A1 (en) * | 2020-09-03 | 2022-03-10 | 广州视源电子科技股份有限公司 | Clock synchronization method and apparatus, and storage medium |
| WO2022095947A1 (en) * | 2020-11-05 | 2022-05-12 | 中兴通讯股份有限公司 | Clock calibration method, clock calibration apparatus, electronic device, and readable medium |
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| CN104918319A (en) * | 2014-03-13 | 2015-09-16 | 北方工业大学 | Clock synchronization simplified information exchange method applied to wireless sensor network |
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| CN109407040A (en) * | 2018-12-07 | 2019-03-01 | 广东电网有限责任公司 | A kind of intelligent electric energy meter calibration method, device, equipment and storage medium |
| WO2022048075A1 (en) * | 2020-09-03 | 2022-03-10 | 广州视源电子科技股份有限公司 | Clock synchronization method and apparatus, and storage medium |
| WO2022095947A1 (en) * | 2020-11-05 | 2022-05-12 | 中兴通讯股份有限公司 | Clock calibration method, clock calibration apparatus, electronic device, and readable medium |
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