CN115348660A - Electric energy meter time synchronization method, electric energy meter and storage medium - Google Patents
Electric energy meter time synchronization method, electric energy meter and storage medium Download PDFInfo
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- CN115348660A CN115348660A CN202211283184.8A CN202211283184A CN115348660A CN 115348660 A CN115348660 A CN 115348660A CN 202211283184 A CN202211283184 A CN 202211283184A CN 115348660 A CN115348660 A CN 115348660A
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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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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/12—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity in which metering is on a time basis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application is suitable for the technical field of electric energy meter timing, and provides an electric energy meter timing method, an electric energy meter and a storage medium. The method is applied to the electric energy meter, the electric energy meter is any one electric energy meter in a centralized electric meter box comprising a plurality of electric energy meters, and the electric energy meter is configured with a Bluetooth module. The method comprises the following steps: after the electric energy meter is powered on, initializing a Bluetooth module, and configuring the Bluetooth module as a slave; after receiving a broadcast timing message issued by a master station, the electric energy meter performs timing according to the broadcast timing message, and configures a Bluetooth module as a host; the electric energy meter is paired with the adjacent electric energy meter based on the Bluetooth module; and if the pairing is successful, the electric energy meter performs clock synchronization with the adjacent electric energy meter based on the Bluetooth module. According to the method and the device, time synchronization of all the electric energy meters can be synchronously completed based on Bluetooth communication, the time synchronization success rate of the electric energy meters is improved, and clock deviation of the electric energy meters is avoided.
Description
Technical Field
The application relates to the technical field of electric energy meter timing, in particular to an electric energy meter timing method, an electric energy meter and a storage medium.
Background
The clock accuracy of the electric energy meter is very important as a legal metering appliance for time-sharing rate settlement. However, due to the influence of temperature, air pressure, product quality and the like, the clock of the electric energy meter is prone to generate deviation, and if the clock is not corrected in time, inaccurate charging of electric energy at different time intervals can be caused, and loss is caused to users or electric power companies.
At present, a common time synchronization method for an electric energy meter is that a master station communicates with a terminal through a General Packet Radio Service (GPRS), and the terminal communicates with the electric energy meter through a broadband carrier (wireless micropower) to complete broadcast time calibration. However, due to reasons such as carrier channel congestion, buried line interference and remote signal attenuation, the time synchronization of the electric energy meter is likely to be unsuccessful, and the time synchronization mode has no reply frame, which finally causes clock deviation of the electric energy meter and causes inaccurate electric energy charging at different time periods.
Disclosure of Invention
In view of this, embodiments of the present application provide an electric energy meter time synchronization method, an electric energy meter, and a storage medium, so as to solve the technical problem that the time synchronization of the electric energy meter is not successful in the current electric energy meter time synchronization manner, which further causes clock skew of the electric energy meter, and causes inaccurate electric energy charging at different time periods.
In a first aspect, an embodiment of the present application provides an electric energy meter time synchronization method, which is applied to an electric energy meter, where the electric energy meter is any one electric energy meter in a centralized electric meter box including a plurality of electric energy meters, and the electric energy meter is configured with a bluetooth module; the MAC addresses of different electric energy meters are different, and the MAC addresses of all the electric energy meters are continuous addresses; the method comprises the following steps: after the electric energy meter is powered on, initializing the Bluetooth module, and configuring the Bluetooth module as a slave; after receiving the broadcast timing message issued by the master station, the electric energy meter performs timing according to the broadcast timing message, and configures the Bluetooth module as a host; the electric energy meter is paired with the adjacent electric energy meter based on the Bluetooth module; the MAC address of the adjacent electric energy meter is adjacent to the MAC address of the electric energy meter; and if the pairing is successful, the electric energy meter performs clock synchronization with the adjacent electric energy meter based on the Bluetooth module.
In one possible implementation of the first aspect, the adjacent power meters include a first adjacent power meter and a second adjacent power meter; the MAC address of the first adjacent electric energy meter is the MAC address of the electric energy meter plus one, and the MAC address of the second adjacent electric energy meter is the MAC address of the electric energy meter minus one; the electric energy meter pairs with adjacent electric energy meter based on bluetooth module, includes: based on the Bluetooth module, the electric energy meter is paired with a first adjacent electric energy meter; if the electric energy meter is successfully paired with the first adjacent electric energy meter, after the clock synchronization is finished, the electric energy meter is paired with the second adjacent electric energy meter; and if the electric energy meter and the first adjacent electric energy meter are not successfully paired in the first preset time period, the electric energy meter and the second adjacent electric energy meter are paired.
In a possible implementation manner of the first aspect, if the bluetooth module of the electric energy meter and the bluetooth module of the adjacent electric energy meter are both hosts, the electric energy meter and the adjacent electric energy meter cannot be successfully paired; if the Bluetooth module of the electric energy meter is the host and the Bluetooth module of the adjacent electric energy meter is the slave, the electric energy meter can be successfully paired with the adjacent electric energy meter.
In a possible implementation manner of the first aspect, the clock synchronization of the electric energy meter with the adjacent electric energy meter based on the bluetooth module includes: based on the Bluetooth module, the electric energy meter sends an inquiry message to the adjacent electric energy meter, and the inquiry message is used for inquiring whether the adjacent electric energy meter times; the electric energy meter receives a first response message returned by the adjacent electric energy meter, and if the first response message indicates that the adjacent electric energy meter is not subjected to time synchronization, the electric energy meter sends a clock message to the adjacent electric energy meter based on a first current clock of the electric energy meter so that the adjacent electric energy meter performs time synchronization based on the clock message; the electric energy meter receives a second response message returned by the adjacent electric energy meter, the second response message comprises a second current clock after time synchronization of the adjacent electric energy meter, and if the difference value between the second current clock and a third current clock of the electric energy meter is within a preset range, the clock synchronization is completed; if the difference value between the second current clock and the third current clock of the electric energy meter is not in the preset range, the electric energy meter re-executes the steps of sending a new clock message to the adjacent electric energy meter based on the new first current clock of the electric energy meter, and judging whether the difference value between the new second current clock after time synchronization of the adjacent electric energy meter and the new third current clock of the electric energy meter is in the preset range or not in the received new second response message returned by the adjacent electric energy meter until the clock synchronization is completed; and if the first response message indicates that the adjacent electric energy meters are synchronized, the clock synchronization is completed.
In a possible implementation manner of the first aspect, after the electric energy meter performs clock synchronization with an adjacent electric energy meter based on the bluetooth module, the method further includes: after the clock synchronization is completed, the electric energy meter sends a command message to the adjacent electric energy meter so that the adjacent electric energy meter configures the Bluetooth module of the adjacent electric energy meter as a host, and performs the steps of pairing the Bluetooth module based on the adjacent electric energy meter with the new adjacent electric energy meter and performing clock synchronization when the pairing is successful.
In one possible implementation of the first aspect, the method further comprises: and if the pairing is not successful within the second preset time period, the pairing of the electric energy meter is stopped.
In a second aspect, an embodiment of the present application provides an electric energy meter, including: a Bluetooth module; the Bluetooth module is embedded in the electric energy meter or a communication module which is in communication connection with the electric energy meter through an interface; the electric energy meter is used for executing the electric energy meter time setting method according to any one of the first aspect.
In a third aspect, an embodiment of the present application provides an electric energy meter, including:
and the configuration module is used for initializing the Bluetooth module after the electric energy meter is powered on and configuring the Bluetooth module as a slave.
And the time setting module is used for setting time according to the broadcast time setting message after the electric energy meter receives the broadcast time setting message issued by the master station, and configuring the Bluetooth module as a host.
The pairing module is used for pairing the adjacent electric energy meters based on the Bluetooth module; the MAC address of the adjacent electric energy meter is adjacent to the MAC address of the electric energy meter.
And the clock synchronization module is used for carrying out clock synchronization with the adjacent electric energy meter based on the Bluetooth module when the pairing is successful.
In a fourth aspect, an embodiment of the present application provides an electric energy meter, including a memory and a processor, where the memory stores a computer program operable on the processor, and the processor executes the computer program to implement the method for time synchronization of an electric energy meter according to any one of the first aspect.
In a fifth aspect, the present application provides a computer-readable storage medium, where a computer program is stored, and when executed by a processor, the computer program implements the electric energy meter time setting method according to any one of the first aspect.
In a sixth aspect, embodiments of the present application provide a computer program product, which, when running on an electric energy meter, causes the electric energy meter to perform the electric energy meter pairing method according to any one of the first aspect.
It is understood that the beneficial effects of the second to sixth aspects can be seen from the description of the first aspect, and are not described herein again.
The method is applied to an electric energy meter, the electric energy meter is any one of a centralized electric meter box comprising a plurality of electric energy meters, the electric energy meter is configured with a Bluetooth module, the Bluetooth module is initialized after the electric energy meter is powered on, the Bluetooth module is configured as a slave, the electric energy meter is subjected to time synchronization according to a broadcast time calibration message sent by a master station after receiving the broadcast time calibration message, the Bluetooth module is configured as a master, the electric energy meter is paired with an adjacent electric energy meter based on the Bluetooth module, if the pairing is successful, the electric energy meter is subjected to clock synchronization with the adjacent electric energy meter based on the Bluetooth module, and the time synchronization of all the electric energy meters can be completed based on the Bluetooth communication synchronization after any electric energy meter is subjected to time calibration according to the broadcast time calibration message, so that the time calibration success rate of the electric energy meter is improved, and the electric energy metering inaccuracy in different periods caused by clock skew of the electric energy meter is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the specification.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of a method for setting time of an electric energy meter according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a method for synchronizing time of an electric energy meter according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of an electric energy meter provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electric energy meter according to still another embodiment of the present application.
Detailed Description
The present application will be more clearly described below with reference to specific examples. The following examples will assist the person skilled in the art in further understanding the role of the present application, but do not limit the application in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the application. All falling within the scope of protection of the present application.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
In the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not for indicating or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically stated.
In addition, the references to "a plurality" in the embodiments of the present application should be interpreted as two or more.
The clock accuracy of the electric energy meter is very important as a legal metering appliance for time-sharing rate settlement. However, due to the influence of temperature, air pressure, product quality and the like, the clock of the electric energy meter is prone to generate deviation, and if the clock is not corrected in time, the charging of electric energy in different time periods is not accurate, for example, the peak time electric energy is calculated into the ordinary time electric energy, and the loss is directly caused to users or electric power companies.
At present, a common time synchronization method for an electric energy meter is that a master station communicates with a terminal through a General Packet Radio Service (GPRS), and the terminal communicates with the electric energy meter through a broadband carrier (wireless micropower) to complete broadcast time calibration. However, due to reasons such as carrier channel congestion, buried line interference and remote signal attenuation, the time synchronization of the electric energy meter is likely to be unsuccessful, and the time synchronization mode has no reply frame, which finally causes clock deviation of the electric energy meter and causes inaccurate electric energy charging at different time periods.
Based on the above problems, an embodiment of the present application provides an electric energy meter time synchronization method, which is applied to an electric energy meter, the electric energy meter is any one electric energy meter in a centralized electric meter box including a plurality of electric energy meters, the electric energy meter is configured with a bluetooth module, after being powered on, the bluetooth module is initialized and configured as a slave, after receiving a broadcast time calibration message issued by a master station, the electric energy meter performs time synchronization according to the broadcast time calibration message, and the bluetooth module is configured as a master, the electric energy meter is paired with an adjacent electric energy meter based on the bluetooth module, if pairing is successful, the electric energy meter performs clock synchronization with the adjacent electric energy meter based on the bluetooth module, and after any electric energy meter performs time synchronization according to the broadcast time calibration message, the time synchronization of all electric energy meters is completed based on bluetooth communication synchronization, the time synchronization success rate of the electric energy meter is improved, and electric energy charging inaccuracy in different periods caused by clock skew of the electric energy meter is avoided.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application. As shown in fig. 1, in a possible application scenario, after the electric energy meters 2 in the centralized electric meter box 1 receive the broadcast timing message issued by the master station 3 and complete timing, the adjacent electric energy meters 5 in the centralized electric meter box 1 (the adjacent electric energy meters 5 are electric energy meters that cannot receive the broadcast timing message issued by the master station 3) are paired based on the bluetooth modules 4 included in the centralized electric meter box 1, and after the pairing is successful, timing of the adjacent electric energy meters 5 is completed. So that this adjacent electric energy meter 5 can realize the time-setting to its adjacent electric energy meter 7 based on this adjacent electric energy meter 5's bluetooth module 6, and then accomplish the time-setting of all electric energy meters in centralized ammeter case 1 in step, and/or, accomplish the time-setting to other adjacent electric energy meters 5 by other electric energy meters 2, and then accomplish the time-setting of all electric energy meters in centralized ammeter case 1 in step.
In another possible application scenario, after the electric energy meter 2 in the centralized electric meter box 1 receives the broadcast timing message issued by the master station 3 and completes the timing, based on the pairing of the bluetooth module 4 included in the electric energy meter box 1 and the adjacent electric energy meter 5 (the adjacent electric energy meter 5 also receives the broadcast timing message issued by the master station 3 and completes the timing) in the centralized electric meter box 1, the electric energy meters 2 cannot be successfully paired at this time, and other electric energy meters 2 stop pairing, and other adjacent electric energy meters 5 complete the timing, so that the timing of all the electric energy meters in the centralized electric meter box 1 is completed synchronously.
Fig. 2 is a schematic flow chart of a method for setting a time of an electric energy meter according to an embodiment of the present application. As shown in fig. 2, the method in this embodiment of the present application is applied to an electric energy meter, where the electric energy meter is any one electric energy meter in a centralized electric meter box including a plurality of electric energy meters, the electric energy meter is configured with a bluetooth module, MAC addresses of different electric energy meters are different, and MAC addresses of all the electric energy meters are consecutive addresses, and the method may include:
Optionally, the electric energy meter is configured with a bluetooth module, and the bluetooth module is embedded in the electric energy meter, or embedded in a communication module communicatively connected to the electric energy meter through a standard interface.
Exemplarily, after the electric energy meter is powered on, the IO port corresponding to the working mode of the bluetooth module is pulled high to supply power to the bluetooth module, the bluetooth module is enabled to operate in an AT instruction mode, and then parameter initialization is performed on the bluetooth module by sending an AT instruction to the bluetooth module, wherein the parameters can include parameters such as the device type, the device name, the inquiry code, the working role, the connection mode, the serial port parameter and the pairing code of the bluetooth module.
Optionally, the working role of the bluetooth module is configured as a slave, and the connection mode of the bluetooth module is configured as a designated bluetooth address connection mode, so that the bluetooth module is only connected with other bluetooth modules with designated bluetooth addresses, for example, the designated bluetooth address may be an adjacent bluetooth address obtained by adding one to or subtracting one from a bluetooth address of the bluetooth module; the pairing code of the Bluetooth module is configured into a pairing code corresponding to the centralized electric meter box, so that the pairing codes of the Bluetooth modules in the same centralized electric meter box are the same, and the Bluetooth modules can be paired according to the same pairing code; the Bluetooth addresses of the Bluetooth modules are configured to be MAC addresses of the electric energy meters, wherein the MAC addresses of the electric energy meters are correspondingly generated by communication addresses of the electric energy meters, the MAC addresses of different electric energy meters are different, and the MAC addresses of all the electric energy meters are continuous addresses, that is, the Bluetooth addresses of different Bluetooth modules are different, and the Bluetooth addresses of all the Bluetooth modules are continuous addresses.
For example, after the electric energy meter initializes and configures the bluetooth module, the IO port corresponding to the operating mode of the bluetooth module is pulled down, so that after the bluetooth module is powered off for 1 second and then powered on again, the bluetooth module operates in the automatic connection mode.
It should be noted that all the electric energy meters in the centralized electric meter box initialize their respective corresponding bluetooth modules after being powered on, and configure the bluetooth modules as slaves.
And 102, after receiving the broadcast timing message sent by the master station, the electric energy meter performs timing according to the broadcast timing message, and configures the Bluetooth module as a host.
Optionally, after receiving the broadcast timing message issued by the master station through the broadband carrier (wireless micropower) channel, the electric energy meter performs self-timing according to the broadcast timing message, that is, completes broadcast timing. Above-mentioned electric energy meter is accomplishing the back to the time, draw high with the IO mouth that bluetooth module's mode of operation corresponds, make bluetooth module operate under AT instruction mode, and then through sending the AT instruction to bluetooth module and configure bluetooth module's work role into the host computer, and with bluetooth module's bluetooth address plus one and subtract bluetooth address as appointed bluetooth address, so that bluetooth module is according to appointed bluetooth address connection mode, only can be connected with appointed bluetooth address, that is to say, make bluetooth module can be connected rather than two adjacent bluetooth module in front and back.
For example, after the electric energy meter configures the bluetooth module, the IO port corresponding to the operating mode of the bluetooth module is pulled down, so that after the bluetooth module is powered off for 1 second and then powered on again, the bluetooth module operates in the automatic connection mode.
It should be noted that the electric energy meter in step 102 is any electric energy meter in the centralized electric meter box that receives the broadcast timing message issued by the master station and completes timing.
It should be noted that, after the electric energy meter receives the broadcast timing message issued by the master station, in order to prevent the situation of the bluetooth module mismatching caused by the delay of the broadband carrier (wireless micropower) channel, the bluetooth module is configured after delaying a preset delay time, for example, 3 seconds.
And 103, pairing the electric energy meter with an adjacent electric energy meter based on the Bluetooth module.
The adjacent electric energy meters are electric energy meters in the centralized electric energy meter box, and the MAC addresses of the adjacent electric energy meters are adjacent to the MAC addresses of the electric energy meters. The adjacent electric energy meters include a first adjacent electric energy meter and a second adjacent electric energy meter. The MAC address of the first adjacent electric energy meter is the MAC address of the electric energy meter plus one, and the MAC address of the second adjacent electric energy meter is the MAC address of the electric energy meter minus one.
It should be noted that, due to carrier channel congestion, buried line interference, remote signal attenuation, and the like, some electric energy meters in the centralized electric meter box may not receive the broadcast timing message issued by the master station, and therefore, an electric energy meter that needs to receive the broadcast timing message issued by the master station is paired with an adjacent electric energy meter that does not receive the broadcast timing message issued by the master station and is in clock synchronization, so as to implement timing of all electric energy meters in the centralized electric meter box.
It should be noted that the adjacent electric energy meters may be the electric energy meters which have received the broadcast timing message issued by the master station and completed timing, or the electric energy meters which have not received the broadcast timing message issued by the master station and have not completed timing.
In a possible implementation manner, in step 103, the method may specifically include:
based on bluetooth module, the electric energy meter pairs with first adjacent electric energy meter.
And if the electric energy meter is successfully paired with the first adjacent electric energy meter, after the clock synchronization is finished, the electric energy meter is paired with the second adjacent electric energy meter.
And if the electric energy meter and the first adjacent electric energy meter are not successfully paired in the first preset time period, the electric energy meter and the second adjacent electric energy meter are paired.
The electric energy meter comprises an electric energy meter body, a Bluetooth module and a Bluetooth module, wherein the electric energy meter body is provided with the Bluetooth module; if the Bluetooth module of the electric energy meter is the host and the Bluetooth module of the adjacent electric energy meter is the slave, the electric energy meter can be successfully paired with the adjacent electric energy meter.
Optionally, as in the foregoing embodiment, the electric energy meter uses the bluetooth address obtained by adding one to or subtracting one from the bluetooth address of the bluetooth module as the specified bluetooth address, so that the bluetooth module can only be connected to another bluetooth module with the specified bluetooth address according to the specified bluetooth address connection mode, that is, the bluetooth module can be connected to two adjacent front and rear bluetooth modules, that is, the electric energy meter can be paired with the first adjacent electric energy meter and the second adjacent electric energy meter through the configured bluetooth module.
If the first adjacent electric energy meter is the electric energy meter which completes time synchronization according to the broadcast timing message after receiving the broadcast timing message issued by the master station, the bluetooth module of the first adjacent electric energy meter is the host, and at this time, the electric energy meter cannot be paired with the first adjacent electric energy meter, that is, if the electric energy meter and the first adjacent electric energy meter are not successfully paired within a first preset time period, the electric energy meter is paired with a second adjacent electric energy meter, and the first preset time period can be 10 seconds.
If the first adjacent electric energy meter is an electric energy meter which cannot receive the broadcast timing message issued by the master station, namely, the time synchronization is not performed, the Bluetooth module of the first adjacent electric energy meter is a slave machine, at the moment, the electric energy meter can be successfully paired with the first adjacent electric energy meter, namely, if the electric energy meter is successfully paired with the first adjacent electric energy meter, the electric energy meter is paired with a second adjacent electric energy meter after the clock synchronization is finished.
And step 104, if the pairing is successful, performing clock synchronization on the electric energy meter and the adjacent electric energy meter based on the Bluetooth module.
In a possible implementation, referring to fig. 3, in step 104, the method may specifically include:
The inquiry message is used for inquiring whether the adjacent electric energy meters are timed. The adjacent electric energy meter can be a first adjacent electric energy meter or a second adjacent electric energy meter. The time synchronization may include that after the adjacent electric energy meters receive the broadcast time calibration message issued by the master station through the broadband carrier (wireless micro-power) channel, the adjacent electric energy meters perform their own time synchronization according to the broadcast time calibration message, and the adjacent electric energy meters complete the time synchronization according to the clock synchronization.
If yes, go to step 1043; if not, go to step 1046.
Optionally, if the first response packet indicates that the adjacent electric energy meters are synchronized, clock synchronization is not required at this time, and clock synchronization is completed. If the first response message indicates that the adjacent electric energy meters are not time-synchronized, the clock synchronization of the adjacent electric energy meters is needed at the moment.
And 1043, the electric energy meter sends a clock message to the adjacent electric energy meter based on the first current clock of the electric energy meter, so that the adjacent electric energy meter carries out time synchronization based on the clock message.
If yes, go to step 1046; if not, go to step 1043.
And step 1046, completing clock synchronization.
Optionally, if a difference value between a second current clock after the pair of the adjacent electric energy meters and a third current clock of the electric energy meter is within a preset range, it indicates that the clock synchronization is successful, and at this time, the pair of the adjacent electric energy meters is completed. And if the difference value between the second current clock after the time synchronization of the adjacent electric energy meters and the third current clock of the electric energy meters is not within the preset range, the electric energy meters send clock messages to the adjacent electric energy meters again based on the new first current clock of the electric energy meters until the clock synchronization is finished.
The electric energy meter performs clock synchronization with the adjacent electric energy meter through the Bluetooth communication of the Bluetooth module, so that the adjacent electric energy meter which is not subjected to clock synchronization can be subjected to clock synchronization, and the problem that a broadcast timing message issued by a master station through a broadband carrier (wireless micropower) channel cannot be received by all electric energy meters, so that the clock synchronization of part of the electric energy meters is unsuccessful and the clock deviation of the part of the electric energy meters is finally caused is avoided.
In a possible implementation manner, the electric energy meter time synchronization method provided in this embodiment of the present application, after step 104, may further include:
and 105, after the clock synchronization is completed, the electric energy meter sends a command message to the adjacent electric energy meter so that the adjacent electric energy meter configures the Bluetooth module of the adjacent electric energy meter as a host, and the Bluetooth module based on the adjacent electric energy meter is paired with a new adjacent electric energy meter, and when the pairing is successful, the clock synchronization is performed.
Optionally, after the pair of the adjacent electric energy meters is completed, that is, after the electric energy meter judges that the difference value between the second current clock and the third current clock of the electric energy meter is within the preset range, a command message is sent to the adjacent electric energy meter, so that the adjacent electric energy meter configures the bluetooth module of the adjacent electric energy meter as a host, and the adjacent electric energy meter of the adjacent electric energy meter is taken as a new adjacent electric energy meter, and then the steps 103 to 105 are executed.
In a possible implementation manner, the electric energy meter time setting method provided in the embodiment of the present application may further include: and if the electric energy meter is not successfully paired with the adjacent electric energy meter based on the Bluetooth module in the second preset time period, the electric energy meter stops pairing.
Optionally, the electric energy meter and the adjacent electric energy meter are not paired successfully in a second preset time period, which indicates that the adjacent electric energy meters are both paired, that is, the bluetooth module of the adjacent electric energy meter is the host, and at this time, the electric energy meter stops pairing, where the second preset time period is greater than the first preset time period, for example, the second preset time period may be 20 seconds.
After the electric energy meter stops pairing, the electric energy meter initializes the Bluetooth module again so as to wait for receiving a next broadcast timing message issued by the master station.
The embodiment of the application provides an electric energy meter time setting method, which is applied to an electric energy meter, the electric energy meter is any one electric energy meter in a centralized electric meter box comprising a plurality of electric energy meters, the electric energy meter is configured with a Bluetooth module, after the electric energy meter is electrified, the Bluetooth module is initialized, the Bluetooth module is configured as a slave, after the electric energy meter receives a broadcast time setting message issued by a master station, time setting is carried out according to the broadcast time setting message, the Bluetooth module is configured as a master, the electric energy meter is paired with adjacent electric energy meters based on the Bluetooth module, if pairing is successful, the electric energy meter is clock-synchronized with the adjacent electric energy meters based on the Bluetooth module, the time setting of all the electric energy meters can be synchronously completed based on Bluetooth communication after any electric energy meter is time set according to the broadcast time setting message, the time setting success rate of the electric energy meter is improved, and the electric energy meter time setting inaccuracy in different periods caused by the clock skew of the electric energy meter is avoided.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
In a possible implementation manner, an embodiment of the present application further provides an electric energy meter, where the electric energy meter includes a bluetooth module. This bluetooth module is embedded in above-mentioned electric energy meter, or, in the communication module that passes through interface communication with above-mentioned electric energy meter and be connected. The electric energy meter is used for executing the electric energy meter time setting method, wherein the electric energy meter time setting method can be the electric energy meter time setting method provided by any embodiment of the application.
Fig. 4 is a schematic structural diagram of an electric energy meter according to an embodiment of the present application. As shown in fig. 4, the electric energy meter provided in this embodiment may include: a configuration module 201, a time tick module 202, a pairing module 203 and a clock synchronization module 204.
The configuration module 201 is configured to initialize the bluetooth module after the electric energy meter is powered on, and configure the bluetooth module as a slave;
the time setting module 202 is used for setting time according to the broadcast time setting message after the electric energy meter receives the broadcast time setting message issued by the master station, and configuring the Bluetooth module as a host;
the pairing module 203 is used for pairing with the adjacent electric energy meters based on the Bluetooth module; the MAC address of the adjacent electric energy meter is adjacent to the MAC address of the electric energy meter;
and the clock synchronization module 204 is configured to perform clock synchronization with the adjacent electric energy meter based on the bluetooth module when the pairing is successful.
Optionally, the adjacent electric energy meters include a first adjacent electric energy meter and a second adjacent electric energy meter; the MAC address of the first adjacent electric energy meter is the MAC address of the electric energy meter plus one, and the MAC address of the second adjacent electric energy meter is the MAC address of the electric energy meter minus one; the pairing module 203 is specifically configured to: based on the Bluetooth module, the electric energy meter is paired with a first adjacent electric energy meter; if the electric energy meter is successfully paired with the first adjacent electric energy meter, after the clock synchronization is finished, the electric energy meter is paired with the second adjacent electric energy meter; and if the electric energy meter and the first adjacent electric energy meter are not successfully paired in the first preset time period, the electric energy meter and the second adjacent electric energy meter are paired.
Optionally, the clock synchronization module 204 is specifically configured to: based on the Bluetooth module, the electric energy meter sends an inquiry message to the adjacent electric energy meter, and the inquiry message is used for inquiring whether the adjacent electric energy meter is timed; the electric energy meter receives a first response message returned by the adjacent electric energy meter, and if the first response message indicates that the adjacent electric energy meter is not subjected to time synchronization, the electric energy meter sends a clock message to the adjacent electric energy meter based on a first current clock of the electric energy meter so that the adjacent electric energy meter performs time synchronization based on the clock message; the electric energy meter receives a second response message returned by the adjacent electric energy meter, the second response message comprises a second current clock after time synchronization of the adjacent electric energy meter, and if the difference value between the second current clock and a third current clock of the electric energy meter is within a preset range, clock synchronization is completed; if the difference value between the second current clock and the third current clock of the electric energy meter is not in the preset range, the electric energy meter re-executes the steps of sending a new clock message to the adjacent electric energy meter based on the new first current clock of the electric energy meter, and judging whether the difference value between the new second current clock after time synchronization of the adjacent electric energy meter and the new third current clock of the electric energy meter is in the preset range or not in the received new second response message returned by the adjacent electric energy meter until the clock synchronization is completed; and if the first response message indicates that the adjacent electric energy meters are synchronized, the clock synchronization is completed.
Optionally, the clock synchronization module 204 is further specifically configured to: after the clock synchronization is completed, the electric energy meter sends a command message to the adjacent electric energy meter so that the adjacent electric energy meter configures the Bluetooth module of the adjacent electric energy meter as a host, and the Bluetooth module based on the adjacent electric energy meter is paired with a new adjacent electric energy meter, and when the pairing is successful, the clock synchronization is performed.
Optionally, the pairing module 203 is further specifically configured to: and when the pairing is not successful in a second preset time period, the pairing of the electric energy meter is stopped.
It should be noted that, for the information interaction, execution process, and other contents between the above devices/units, the specific functions and technical effects thereof based on the same concept as those of the method embodiment of the present application can be specifically referred to the method embodiment portion, and are not described herein again.
Fig. 5 is a schematic structural diagram of an electric energy meter according to another embodiment of the present application. As shown in fig. 5, the electric energy meter 300 of this embodiment includes: a processor 310, a memory 320, wherein the memory 320 stores a computer program 321 that can be run on the processor 310. The processor 310, when executing the computer program 321, implements the steps in any of the various method embodiments described above, such as the steps 101 to 104 shown in fig. 2. Alternatively, the processor 310, when executing the computer program 321, implements the functions of each module/unit in each device embodiment described above, for example, the functions of the modules 201 to 204 shown in fig. 4.
Illustratively, the computer program 321 may be divided into one or more modules/units, which are stored in the memory 320 and executed by the processor 310 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used for describing the execution process of the computer program 321 in the electric energy meter 300.
Those skilled in the art will appreciate that fig. 5 is merely an example of a power meter, and does not constitute a limitation of a power meter, and may include more or fewer components than shown, or some components in combination, or different components, such as input output devices, network access devices, buses, etc.
The Processor 310 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 320 may be an internal storage unit of the electric energy meter, such as an on-chip flash or RAM memory of the electric energy meter, or an external storage device of the electric energy meter, such as an off-chip flash equipped on the electric energy meter. The memory 320 may also include both an internal storage unit of the power meter and an external storage device. The memory 320 is used for storing computer programs and other programs and data required by the electric energy meter. The memory 320 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described or recited in any embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/power meter and method may be implemented in other ways. For example, the above-described device/energy meter embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and other division manners may be available in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated module/unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (10)
1. The method for the time synchronization of the electric energy meter is characterized by being applied to the electric energy meter, wherein the electric energy meter is any one electric energy meter in a centralized electric meter box comprising a plurality of electric energy meters, and the electric energy meter is provided with a Bluetooth module; the MAC addresses of different electric energy meters are different, and the MAC addresses of all the electric energy meters are continuous addresses; the method comprises the following steps:
after the electric energy meter is powered on, initializing the Bluetooth module, and configuring the Bluetooth module as a slave;
after the electric energy meter receives a broadcast timing message issued by a master station, timing is carried out according to the broadcast timing message, and the Bluetooth module is configured as a host; the electric energy meter is paired with an adjacent electric energy meter based on the Bluetooth module; the MAC address of the adjacent electric energy meter is adjacent to the MAC address of the electric energy meter;
and if the pairing is successful, the electric energy meter performs clock synchronization with the adjacent electric energy meter based on the Bluetooth module.
2. The method of pairing electric energy meters of claim 1, wherein the adjacent electric energy meters include a first adjacent electric energy meter and a second adjacent electric energy meter; the MAC address of the first adjacent electric energy meter is the MAC address of the electric energy meter plus one, and the MAC address of the second adjacent electric energy meter is the MAC address of the electric energy meter minus one;
the electric energy meter is based on bluetooth module pairs with adjacent electric energy meter, includes:
based on the Bluetooth module, the electric energy meter is paired with the first adjacent electric energy meter;
if the electric energy meter is successfully paired with the first adjacent electric energy meter, after the clock synchronization is finished, the electric energy meter is paired with the second adjacent electric energy meter;
and if the electric energy meter and the first adjacent electric energy meter are not successfully paired in a first preset time period, the electric energy meter and the second adjacent electric energy meter are paired.
3. The method for synchronizing the time of an electric energy meter according to claim 1, wherein if the bluetooth module of the electric energy meter and the bluetooth module of the adjacent electric energy meter are both hosts, the electric energy meter and the adjacent electric energy meter cannot be successfully paired; if the Bluetooth module of the electric energy meter is a host and the Bluetooth module of the adjacent electric energy meter is a slave, the electric energy meter can be successfully paired with the adjacent electric energy meter.
4. The method for synchronizing time of an electric energy meter according to claim 1, wherein the clock synchronization of the electric energy meter with the adjacent electric energy meter based on the bluetooth module comprises:
based on the Bluetooth module, the electric energy meter sends an inquiry message to the adjacent electric energy meter, wherein the inquiry message is used for inquiring whether the adjacent electric energy meter is synchronized;
the electric energy meter receives a first response message returned by the adjacent electric energy meter, and if the first response message indicates that the adjacent electric energy meter is not time-tick, the electric energy meter sends a clock message to the adjacent electric energy meter based on a first current clock of the electric energy meter so that the adjacent electric energy meter carries out time-tick based on the clock message; the electric energy meter receives a second response message returned by the adjacent electric energy meter, the second response message comprises a second current clock after time synchronization of the adjacent electric energy meter, and if the difference value between the second current clock and a third current clock of the electric energy meter is within a preset range, clock synchronization is completed; if the difference value between the second current clock and the third current clock of the electric energy meter is not in the preset range, the electric energy meter re-executes the step of sending a new clock message to the adjacent electric energy meter based on the new first current clock of the electric energy meter, and judging whether the difference value between the new second current clock after time synchronization of the adjacent electric energy meter and the new third current clock of the electric energy meter is in the preset range or not in a received new second response message returned by the adjacent electric energy meter until the clock synchronization is completed;
and if the first response message indicates that the adjacent electric energy meters are synchronized, the clock synchronization is completed.
5. The method for synchronizing time of an electric energy meter according to claim 1, wherein after the electric energy meter performs clock synchronization with the adjacent electric energy meter based on the bluetooth module, the method further comprises:
after clock synchronization is completed, the electric energy meter sends a command message to the adjacent electric energy meter so that the adjacent electric energy meter configures the Bluetooth module of the adjacent electric energy meter as a host, and performs the steps of pairing the Bluetooth module based on the adjacent electric energy meter with a new adjacent electric energy meter and performing clock synchronization when pairing is successful.
6. The method for synchronizing the time of an electric energy meter according to any one of claims 1 to 5, further comprising: and if the pairing is not successful within the second preset time period, the pairing of the electric energy meters is stopped.
7. An electric energy meter is characterized by comprising a Bluetooth module; the Bluetooth module is embedded in the electric energy meter or a communication module which is in communication connection with the electric energy meter through an interface;
the electric energy meter is used for executing the electric energy meter time setting method according to any one of claims 1 to 6.
8. An electric energy meter, comprising:
the configuration module is used for initializing the Bluetooth module after the electric energy meter is powered on and configuring the Bluetooth module as a slave;
the time setting module is used for setting time according to the broadcast time setting message after the electric energy meter receives the broadcast time setting message issued by the master station, and configuring the Bluetooth module as a host;
the pairing module is used for pairing the adjacent electric energy meters based on the Bluetooth module; the MAC address of the adjacent electric energy meter is adjacent to the MAC address of the electric energy meter;
and the clock synchronization module is used for carrying out clock synchronization on the basis of the Bluetooth module and the adjacent electric energy meter when the pairing is successful.
9. An electric energy meter, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor executes the computer program to implement the electric energy meter time synchronization method according to any one of claims 1 to 6.
10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements the electric energy meter pairing method according to any one of claims 1 to 6.
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