A three-phase power outage reporting method, device and system

Abstract

The application discloses a three-phase power outage reporting method, device and system. The method is applied to an electric energy meter. A power supply head of a three-phase electric wire is connected with an energy controller. Each phase electric wire comprises at least one series-connected electric energy meter. The energy controller and the electric energy meter are provided with wireless communication modules. The method comprises the following steps: when a power outage fault occurs, sending power outage notification information to the energy controller on the current phase electric wire based on carrier communication and / or wireless communication; if it is judged that the power outage notification information cannot reach the energy controller based on the carrier communication or the wireless communication of the current phase electric wire, sending the power outage notification information to a relay electric energy meter on another phase electric wire based on the wireless communication, so that the power outage notification information reaches the energy controller on the another phase electric wire based on the carrier communication or the wireless communication. The technical scheme provided by the application improves the power outage reporting accuracy, reliability and stability when three-phase power outage occurs.

Description

Technical Field

[0001] This invention relates to the field of power transmission, and specifically to a method, apparatus, and system for reporting three-phase power outages. Background Technology

[0002] High-speed power line carrier (HPLC) is a broadband power line carrier technology that transmits data over low-voltage power lines. Broadband power line carrier communication networks use power lines as the communication medium to achieve the aggregation, transmission, and interaction of electricity consumption information for low-voltage power users. HPLC communication couples the carrier signal between the live and neutral wires of the power line for transmission. However, this coupling method has problems. When the power line itself is accidentally damaged and disconnected, power line carrier communication will fail, making it impossible to quickly locate the power outage event. Furthermore, when the circuit breaker trips, although the signal can cross the break point due to the internal magnetic induction mechanism of the circuit breaker and the spatial coupling of the carrier signal, the signal attenuation is severe, making communication unstable. Moreover, the success rate of power line communication is very low when the line impedance is very low. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a three-phase power outage reporting method, device and system, thereby improving the accuracy and reliability of three-phase power outage reporting.

[0004] According to a first aspect, embodiments of the present invention provide a three-phase power outage reporting method, applied to an energy meter. The power supply head of the three-phase power line is connected to an energy controller. Each phase power line includes at least one energy meter connected in series. Both the energy controller and the energy meter include a wireless communication module. The method includes: when a power outage fault occurs, sending a power outage notification message to the energy controller via carrier communication and / or wireless communication on the current phase power line; if it is determined that the power outage notification message cannot reach the energy controller via carrier communication or wireless communication on the current phase power line, then sending the power outage notification message to a relay energy meter via wireless communication, so that the power outage notification message reaches the energy controller via carrier communication and / or wireless communication on another phase power line. The relay energy meter is an energy meter on another phase power line capable of establishing a wireless communication connection with the current energy meter.

[0005] Optionally, the step of sending the power outage notification information to the energy controller via carrier communication and / or wireless communication on the current phase line when a power outage occurs includes: if a direct carrier communication or wireless communication connection can be established with the energy controller, then the power outage notification information is sent to the energy controller; if a direct carrier communication or wireless communication connection cannot be established with the energy controller, then the power outage notification information is sent to a target energy meter that can establish a carrier communication or wireless communication connection, wherein the target energy meter is an energy meter on the current phase line that is closer to the energy controller than the current energy meter.

[0006] Optionally, the method further includes: the target energy meter sending the power outage notification information to the energy controller based on carrier communication and / or wireless communication.

[0007] Optionally, the method further includes: if a power outage notification is received from another electricity meter, summarizing all received power outage notifications and discarding duplicate information to generate a summary result; and generating a power outage notification to be sent based on the summary result and its own power outage status.

[0008] Optionally, the method further includes: the relay energy meter is the energy meter with the strongest wireless communication quality with the current energy meter on another phase wire.

[0009] Optionally, the method further includes: when communication with the relay energy meter is interrupted, searching for another relay energy meter with the second strongest communication quality from other phase lines to establish a communication connection.

[0010] Optionally, the method further includes: if no other relay energy meter capable of establishing a communication connection can be found within the wireless communication range, then the power outage notification information is sent to the second target energy meter so that the second target energy meter can search for the second relay energy meter. The second target energy meter is an energy meter on the current phase line that is farther from the energy controller than the current energy meter, and the second relay energy meter is an energy meter on another phase line that can establish a wireless communication connection with the second target energy meter.

[0011] Optionally, the method further includes: reporting power outage notification information at preset time intervals, and stopping reporting when the backup power supply is depleted.

[0012] Optionally, the method further includes: terminating the reporting of power outage notification information after receiving a response from the energy controller.

[0013] According to a second aspect, embodiments of the present invention provide a three-phase power outage reporting system, the system comprising: a plurality of energy meters, an energy controller, and a master station for performing the method as described in the first aspect or any one thereof, wherein: at least one energy meter connected in series is installed on each phase wire; the energy controller is circuitically connected to the nearest energy meter in each phase wire; both the energy controller and the energy meters include a wireless communication module; the wireless communication module is used to enable wireless communication between the energy controller and the energy meters, and between the energy meters; the energy controller is used to collect all power outage information; and the master station is communicatively connected to the energy controller for generating power outage repair tasks.

[0014] The technical solution of this invention has the following advantages:

[0015] This invention provides a three-phase power outage reporting method, apparatus, and system. Specifically, the method includes: when a power outage fault occurs in any phase of a power line, all electricity meters disconnected after the fault point will prioritize sending outage notification information to the energy controller. If the disconnected electricity meter can directly establish a wireless communication connection with the energy controller, it will directly send the outage notification information to the energy controller. If the disconnected electricity meter cannot directly communicate with the energy controller, the outage notification information is sent to the electricity meter closer to the energy controller via a combination of carrier communication and wireless communication on the current phase of the power line, allowing the outage notification information to gradually reach the energy controller through multiple electricity meters. If the current electricity meter determines that it cannot establish either carrier communication or wireless communication with the energy controller or a electricity meter closer to the energy controller, the current electricity meter sends the outage notification information to a relay electricity meter on another phase of the power line via wireless communication, allowing the outage notification information to gradually reach the energy controller through the other phase of the power line, thereby significantly improving the reliability of power outage reporting.

[0016] Furthermore, each electricity meter uses a wireless communication module and carrier communication chip to discard duplicate information in the collected power outage notification messages, avoiding information redundancy and improving information transmission efficiency. Additionally, supercapacitors are installed on the electricity meters as backup power sources, enabling them to send outage notification messages multiple times if no feedback message is received from the energy controller in the event of a power outage, further improving the reliability of power outage reporting. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram illustrating the steps of a three-phase power outage reporting method according to an embodiment of the present invention;

[0019] Figure 2 This is a flowchart illustrating a three-phase power outage reporting method according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a three-phase power outage reporting device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a three-phase power outage reporting system according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of an energy meter according to an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Please see Figure 1 and Figure 2 This invention provides a three-phase power outage reporting method, applied to an energy meter. The power supply head of the three-phase power line is connected to an energy controller. Each phase power line includes multiple energy meters connected in series. The energy controller and energy meters are equipped with wireless communication modules to enable wireless communication between them. The method specifically includes the following steps:

[0026] Step S101: When a power outage occurs, the power outage notification information is sent to the energy controller via carrier communication or wireless communication on the current phase line.

[0027] Step S102: If it is determined that the power outage notification information cannot reach the energy controller via either carrier communication or wireless communication on the current phase wire, the power outage notification information is sent to the relay energy meter via wireless communication so that the power outage notification information can reach the energy controller via carrier communication or wireless communication on another phase wire. The relay energy meter is an energy meter on another phase wire that can establish a wireless communication connection with the current energy meter.

[0028] Specifically, in this embodiment, each phase power meter is equipped with a wireless communication module, which can use technologies such as WIFI or Bluetooth communication. When a fault such as a disconnection occurs in any phase power line, the power meters after the fault point will lose power. If the power meter that lost power can directly establish wireless communication with the energy controller, it will directly send the power outage notification information to the energy controller. If the power meter that lost power cannot establish wireless communication with the energy controller, then the power meter is located after the fault point and at the rear of multiple power meters connected in series. This power meter will send the power outage notification information step by step to the target power meter closer to the energy controller through a combination of wireless communication and carrier communication. That is, after receiving the power outage notification information, the target power meter continues to send the power outage notification information to the energy controller through carrier communication and / or wireless communication. This ensures that power outage notification information can reach the target energy meter via either wireless communication or carrier communication. If the wireless communication signal between the current energy meter and the target energy meter is weak, carrier communication can be used to quickly deliver the power outage notification information to the target energy meter. If the fault point is between the current energy meter and the target energy meter, and carrier communication is not possible, the power outage notification information can be sent to the target energy meter via wireless communication. Based on the above steps, after the power outage notification information is transmitted to the fault point, if there are multiple energy meters connected in series after the fault point, the power outage notification information can be sent to the energy controller using a combination of wireless communication and carrier communication. This ensures that the power outage notification information reaches the energy controller in the shortest time via the fastest and most optimal path, significantly improving the reliability of power outage reporting compared to the single method of carrier communication used in existing technologies.

[0029] Furthermore, if the current energy meter cannot establish either carrier communication or wireless communication when sending a power outage notification to the energy controller or the target energy meter—for example, if the fault point is located between the current and target energy meters, carrier communication is unusable due to a broken wire, and the wireless communication signal between the current and target energy meters is interfered with—the current energy meter uses its wireless communication module to search for energy meters capable of establishing wireless communication (i.e., relay meters) on the other two phases of the power line within its wireless communication range. If a relay meter is found on one phase of the power line, the current energy meter sends a power outage notification to that relay meter via wireless communication. This allows the power outage notification to quickly reach the energy controller via a combination of carrier communication and wireless communication through the intact line of the other phase, further improving the reliability of power outage reporting.

[0030] Specifically, in one embodiment, step S101 above includes the following steps:

[0031] Step 1: If a direct carrier communication or wireless communication connection can be established with the energy controller, then send the power outage notification information to the energy controller.

[0032] Step 2: If a direct carrier communication or wireless communication connection cannot be established with the energy controller, the power outage notification information will be sent to the target energy meter that can establish a carrier communication or wireless communication connection. The target energy meter is the energy meter on the current phase line that is closer to the energy controller than the current energy meter.

[0033] For details on the underlying principles, please refer to the specific descriptions of steps S101 to S102 above, which will not be repeated here.

[0034] Specifically, in one embodiment, the three-phase power outage reporting method provided by this invention further includes the following steps:

[0035] Step 3: If power outage notifications are received from other electricity meters, all received power outage notifications are summarized, and duplicate information is discarded to generate a summary result.

[0036] Step 4: Generate the power outage notification information to be sent based on the summary results and its own power outage status.

[0037] Specifically, currently, electricity meters send power outage notification messages from multiple meters, either directly or via wireless or carrier communication, to the energy control center. However, because the messages are transmitted from both current and relay meters, poor signal strength during wireless or carrier communication can cause the message stream to form a mesh structure, resulting in many duplicate messages being received by individual meters. In this embodiment, each electricity meter discards duplicate messages from the aggregated message stream using its internal wireless communication module and carrier communication chip, reducing message redundancy. Finally, considering its own power outage status, if it is also experiencing a power outage, its meter address and phase information are added to the aggregated power outage notification message, generating a new notification message for continued transmission. This ensures that the number of power outage notification messages transmitted in the message network is not excessive, speeding up transmission and reducing communication pressure.

[0038] Specifically, in one embodiment, the relay energy meter is the energy meter on another phase line with the strongest wireless communication quality with the current energy meter. Specifically, if the current energy meter can establish wireless communication with multiple relay energy meters on other phase lines, the energy meter with the strongest signal quality is selected as the relay energy meter, thereby improving the reliability of power outage notification information transmission.

[0039] In one embodiment, if the current energy meter experiences a communication interruption with the relay energy meter, it will search for another relay energy meter with the second strongest communication quality (the second strongest signal quality is the strongest signal quality other than the strongest signal) from other phase lines to establish a communication connection. That is, if the relay energy meter with the strongest communication signal quality fails, the current energy meter will continue to search for the energy meter with the strongest current signal quality from other energy meters that can establish wireless communication on other phase lines as the relay energy meter, thereby further ensuring the reliability of the power outage notification information transmission.

[0040] Specifically, in one embodiment, the three-phase power outage reporting method provided by this invention further includes the following steps:

[0041] Step 5: If no other relay energy meter can be found within the wireless communication range to establish a communication connection, the power outage notification information is sent to the second target energy meter so that the second target energy meter can find the second relay energy meter. The second target energy meter is the energy meter on the current phase line that is farther away from the energy controller than the current energy meter. The second relay energy meter is the energy meter on another phase line that can establish a wireless communication connection with the second target energy meter.

[0042] Specifically, if the current energy meter experiences a preset number of interruptions within a preset time period with the established relay energy meter (e.g., two interruptions within one minute), it is assumed that the relay energy meter may be malfunctioning, or that the wireless communication connection between the current energy meter and the relay energy meter has weakened or become unstable. The current energy meter then searches for other relay energy meters within its wireless communication range to improve the connection. If no other relay energy meter is found, the current energy meter will send a power outage notification message and a forwarding instruction on the current phase line to the next-level energy meter further away from the energy controller. This instructs the next-level energy meter to forward the power outage notification message to the relay energy meter within its wireless communication range (i.e., the second relay energy meter) to continue forwarding the message. If the wireless connection between the next-level energy meter and the relay energy meter is still unstable, the message continues to be forwarded to the next energy meter further away from the energy controller. This method maximizes the transmission of power outage notification messages via the optimal wireless communication path, further improving the reliability of power outage reporting.

[0043] Specifically, in one embodiment, the three-phase power outage reporting method provided by this invention further includes the following steps:

[0044] Step 6: Report power outage notification information at preset time intervals, and stop reporting when the backup power supply is depleted.

[0045] Specifically, in one embodiment, the following steps are also included:

[0046] Step 7: After receiving the response from the energy controller, stop reporting the power outage notification information.

[0047] Specifically, in this embodiment, the electricity meter has a backup battery to ensure its continued operation during power outages and enable it to send outage notification messages multiple times. If a power outage meter does not receive confirmation from the energy controller that its message has been received, it will continuously report at preset time intervals until the backup battery is depleted. Furthermore, the reporting process terminates upon receiving a response from the energy controller. This further ensures the reliability of power outage reporting. In this embodiment, the backup battery uses a supercapacitor to provide 30 seconds of operation, and the retransmission interval is set to 5 seconds. In the worst-case scenario, a power outage event can be retransmitted 6 times, increasing its anti-interference capability.

[0048] By executing the above steps, the three-phase power outage reporting method provided by this embodiment of the invention allows all electricity meters disconnected after the fault point to send outage notification information to the energy controller first when a power outage fault occurs in any phase of the power line. If the disconnected electricity meter can directly establish a wireless communication connection with the energy controller, it directly sends the outage notification information to the energy controller. If the disconnected electricity meter cannot directly establish wireless communication with the energy controller, it sends the outage notification information to the electricity meter closer to the energy controller via a combination of carrier communication and wireless communication on the current phase of the power line, allowing the outage notification information to reach the energy controller gradually through multiple electricity meters. If the current electricity meter determines that it cannot establish either carrier communication or wireless communication with the energy controller or the electricity meter closer to the energy controller, it sends the outage notification information to the relay electricity meter on another phase of the power line via wireless communication, allowing the outage notification information to reach the energy controller gradually through the other phase of the power line, thereby significantly improving the reliability of power outage reporting.

[0049] Furthermore, each electricity meter uses a wireless communication module and carrier communication chip to discard duplicate information in the collected power outage notification messages, avoiding information redundancy and improving information transmission efficiency. Additionally, supercapacitors are installed on the electricity meters as backup power sources, enabling them to send outage notification messages multiple times if no feedback message is received from the energy controller in the event of a power outage, further improving the reliability of power outage reporting.

[0050] like Figure 3 As shown, this embodiment also provides a three-phase power outage reporting device, applied to an electricity meter. The power supply head of the three-phase power line is connected to an energy controller. Each phase power line includes multiple electricity meters connected in series. The energy controller and the electricity meters are equipped with wireless communication modules. The device includes:

[0051] The direct transmission module 101 is used to send power outage notification information to the energy controller via carrier communication or wireless communication on the current phase line when a power outage occurs. For details, please refer to the relevant description of step S101 in the above method embodiments, which will not be repeated here.

[0052] The forwarding module 102 is used to, if it is determined that the power outage notification information cannot reach the energy controller via either carrier communication or wireless communication on the current phase wire, send the power outage notification information to a relay energy meter via wireless communication, so that the power outage notification information can reach the energy controller via carrier communication or wireless communication on another phase wire. The relay energy meter is an energy meter on another phase wire that can establish a wireless communication connection with the current energy meter. For details, please refer to the relevant description of step S102 in the above method embodiment, which will not be repeated here.

[0053] The three-phase power outage reporting device provided in this embodiment of the invention is used to execute the three-phase power outage reporting method provided in the above embodiment. Its implementation method and principle are the same. For details, please refer to the relevant description of the above method embodiment, which will not be repeated here.

[0054] Through the coordinated operation of the aforementioned components, the three-phase power outage reporting device provided in this embodiment of the invention enables all electricity meters downstream of the fault point to send outage notification information to the energy controller when a power outage fault occurs on any phase of the power line. If the electricity meter experiencing the outage can directly establish a wireless communication connection with the energy controller, it directly sends the outage notification information to the energy controller. If the electricity meter experiencing the outage cannot directly communicate with the energy controller, it sends the outage notification information on the current phase of the power line to the electricity meter closer to the energy controller via a combination of carrier communication and wireless communication, allowing the outage notification information to gradually reach the energy controller through multiple electricity meters. If the current electricity meter determines that it cannot establish either carrier communication or wireless communication with the energy controller or a electricity meter closer to the energy controller, it sends the outage notification information to a relay electricity meter on another phase of the power line via wireless communication, allowing the outage notification information to gradually reach the energy controller through the other phase of the power line, thereby significantly improving the reliability of power outage reporting.

[0055] Furthermore, each electricity meter uses a wireless communication module and carrier communication chip to discard duplicate information in the collected power outage notification messages, avoiding information redundancy and improving information transmission efficiency. Additionally, supercapacitors are installed on the electricity meters as backup power sources, enabling them to send outage notification messages multiple times if no feedback message is received from the energy controller in the event of a power outage, further improving the reliability of power outage reporting.

[0056] Figure 4 This invention illustrates a three-phase power outage reporting system according to an embodiment of the present invention. The system includes: multiple energy meters 001, an energy controller 002, and a master station 003. Wherein:

[0057] Multiple energy meters 001 connected in series are installed on each phase of the power line. The energy controller 002 is circuitally connected to the nearest energy meter 001 in each phase of the power line. The energy controller 002 and the energy meter 001 are equipped with a wireless communication module 904. The wireless communication module 904 is used to enable wireless communication between the energy controller 002 and the energy meter 001, and between the energy meters 001. The energy controller 002 is used to collect all power outage information.

[0058] The main station 003 communicates with the energy controller 002 to generate power outage repair tasks.

[0059] like Figure 5As shown, the aforementioned electricity meter includes: a processor 901, a memory 902, and a carrier communication chip 903. The processor 901 is communicatively connected to both the memory 902 and the carrier communication chip 903, and can be connected via a bus or other means. Figure 5 Taking the example of a connection between China and Israel via a bus.

[0060] Processor 901 can be a Central Processing Unit (CPU). Processor 901 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips.

[0061] The memory 902, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the methods in the above method embodiments. The processor 901 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions, and modules stored in the memory 902, thereby implementing the methods in the above method embodiments.

[0062] The memory 902 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created by the processor 901, etc. Furthermore, the memory 902 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 902 may optionally include memory remotely located relative to the processor 901, and these remote memories may be connected to the processor 901 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0063] One or more modules are stored in memory 902, and when executed by processor 901, they perform the methods described in the above method embodiments.

[0064] In one embodiment, the electricity meter further includes a supercapacitor 905, which is connected to a carrier communication chip 903, a processor 901, and a wireless communication module 904, respectively, and is used as a backup power source for the electricity meter 001.

[0065] For details regarding the three-phase power outage reporting system, please refer to the relevant descriptions and effects in the above method embodiments for further understanding; they will not be repeated here.

[0066] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The implemented program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium can also include combinations of the above types of memory.

[0067] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A three-phase power outage reporting method, applied to an electric energy meter, characterized in that, The power supply head of a three-phase power line is connected with an energy controller, each phase power line includes at least one electric energy meter connected in series, the energy controller and the electric energy meter each include a wireless communication module, and the method comprises: When a power failure occurs, power failure notification information is sent to the energy controller on the current phase power line based on carrier communication and / or wireless communication; If it is determined that the current phase power line cannot make the power failure notification information reach the energy controller based on carrier communication or wireless communication, the power failure notification information is sent to a relay electric energy meter through wireless communication, so that the power failure notification information reaches the energy controller on another phase power line based on carrier communication and / or wireless communication, and the relay electric energy meter is an electric energy meter on another phase power line that can establish a wireless communication connection with the current electric energy meter; If no other relay electric energy meter that can establish a communication connection is found within the wireless communication range, the power failure notification information is sent to a second target electric energy meter, so that the second target electric energy meter finds a second relay electric energy meter, the second target electric energy meter is an electric energy meter on the current phase power line that is farther from the energy controller than the current electric energy meter, and the second relay electric energy meter is an electric energy meter on another phase power line that can establish a wireless communication connection with the second target electric energy meter.

2. The method of claim 1, wherein, The method further comprises: If a carrier communication or wireless communication connection can be established directly with the energy controller, the power failure notification information is sent to the energy controller; If a carrier communication or wireless communication connection cannot be established directly with the energy controller, the power failure notification information is sent to a target electric energy meter that can establish a carrier communication or wireless communication connection, and the target electric energy meter is an electric energy meter on the current phase power line that is closer to the energy controller than the current electric energy meter.

3. The method of claim 2, wherein, The method further comprises: The target electric energy meter sends the power failure notification information to the energy controller based on carrier communication and / or wireless communication.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: If power failure notification information sent by other electric energy meters is received, all the received power failure notification information is summarized, and repeated information is discarded to generate a summary result; Based on the summary result and the power failure state of the self, power failure notification information to be sent is generated.

5. The method of claim 1, wherein, The method further comprises: the relay electric energy meter is an electric energy meter on another phase power line that has the strongest wireless communication quality with the current electric energy meter.

6. The method of claim 5, wherein, The method further comprises: when communication interruption occurs with the relay electric energy meter, another relay electric energy meter with weaker communication quality is found again from other phase power lines to establish a communication connection.

7. The method of claim 1, wherein, The method further comprises: The power failure notification information is reported at a preset time interval, and the reporting is stopped when the standby power supply runs out of power.

8. The method of claim 7, wherein, The method further comprises: After receiving response information from the energy controller, the reporting of the power failure notification information is terminated.

9. A three-phase power outage reporting system, characterized by, The system comprises a plurality of electric energy meters, an energy controller, and a master station for executing the method according to any one of claims 1-8. At least one series-connected electric energy meter is installed on each phase electric line, the energy controller is circuit-connected with the closest electric energy meter in each phase electric line, the energy controller and the electric energy meter each include a wireless communication module, the wireless communication module is used for wireless communication between the energy controller and the electric energy meter, and between the electric energy meters, and the energy controller is used for collecting all power failure information. The main station is in communication connection with the energy controller, and is used for generating a power failure repair task.

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