Carrier communication method and system for dual-core smart meter

Abstract

The application provides a carrier communication method and system for a double-core smart electric meter, the double-core smart electric meter is provided with a metering core and a management core, the carrier communication method comprises the following steps: continuously receiving a heartbeat signal by the metering core, the heartbeat signal is continuously sent by the management core in a normal working state; when the heartbeat signal is received within a preset time interval, a carrier communication connection between the management core and a preset smart terminal is established, and then the management core and the smart terminal perform first data transmission; when the heartbeat signal is not received within a preset time interval, a carrier communication connection between the metering core and the smart terminal is established, and then the metering core and the smart terminal perform second data transmission, which can guarantee the reliable operation of the electric energy metering system and improve the reliability of the operation of the double-core smart electric meter in the case of management core failure.

Description

Technical Field

[0001] This application relates to the field of data processing technology, and in particular to a carrier communication method and system for dual-core smart meters. Background Technology

[0002] With the rapid development of new power systems, various new metering requirements such as time-of-use pricing and carbon metering have posed challenges to the functionality of smart meters. To adapt to the development of these new power systems, the IR46 meter standards organization proposed a dual-core smart metering solution. In a dual-core smart meter, the core components are divided into a metering core and a management core. The metering core handles basic data acquisition and energy metering; according to metering regulations, its program is fixed and cannot be upgraded. The management core handles various meter management functions and new power system services, and can be freely upgraded. In currently implemented dual-core smart meter solutions, the management core reports meter reading data to the smart terminal via a carrier communication module, working with the power metering system to achieve the meter reading function.

[0003] In the current solution, the metering core possesses independent metering capabilities, retaining its energy metering function even when the management core is upgraded or fails, storing metering data locally. However, in practical field applications, almost all meters in China achieve remote reading via power line carrier communication, no longer retaining the ability to perform on-site readings. In the current dual-core smart meter solution, the carrier communication module is connected to the management core. When the management core is unavailable, remote meter reading cannot be achieved, inevitably affecting the normal operation of the power metering system. Therefore, how to ensure the orderly development of innovative services in the new power system without affecting the reliable operation of the existing power metering system is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a carrier communication method and system for dual-core smart meters, thereby improving the reliability of dual-core smart meter operation.

[0005] In a first aspect, embodiments of this application provide a carrier communication method for a dual-core smart meter, wherein the dual-core smart meter is provided with a metering core and a management core; the carrier communication method includes:

[0006] The metering core continuously receives heartbeat signals, which are continuously sent by the management core under normal operating conditions.

[0007] When the heartbeat signal is received within a preset time interval, a carrier communication connection is established between the management chip and the preset smart terminal, thereby enabling the management chip and the smart terminal to perform the first data transmission.

[0008] If the heartbeat signal is not received within a preset time interval, a carrier communication connection is established between the metering core and the smart terminal, thereby enabling the metering core and the smart terminal to perform a second data transmission.

[0009] This application provides a carrier communication method for a dual-core smart meter, which determines whether to perform a first data transmission or a second data transmission by receiving a heartbeat signal. In a dual-core smart meter, the metering core is typically used for basic data acquisition and energy metering, while the management core is typically used for various meter management functions and new power system services. Therefore, when the heartbeat signal is received within a preset time interval, it indicates that the management core is still working normally. At this time, the management core performs the first data transmission with the smart terminal to ensure the normal operation of various meter management functions and new power system services. When the heartbeat signal is not received within the preset time interval, it indicates that the management core has failed. At this time, the metering core replaces the management core, and the metering core performs the second data transmission with the smart terminal to ensure the normal operation of basic data acquisition and energy metering. Compared with the prior art, the method provided by this application can ensure the reliable operation of the energy metering system in the event of a management core failure, thus improving the reliability of the dual-core smart meter.

[0010] In one possible implementation, establishing a carrier communication connection between the management chip and a preset smart terminal when the heartbeat signal is received within a preset time interval includes:

[0011] The first communication interface of the preset communication channel is connected to the communication interface of the management core, wherein the second communication interface of the communication channel is fixedly connected to the carrier communication module of the dual-core smart meter, and there is a carrier communication connection between the carrier communication module and the smart terminal;

[0012] Obtain the meter serial number information sent by the metering core;

[0013] A carrier communication connection is established between the management chip and the smart terminal based on the meter serial number information.

[0014] In one possible implementation, establishing a carrier communication connection between the metering chip and the smart terminal when no heartbeat signal is received within a preset time interval includes:

[0015] Connect the first communication interface to the communication interface of the metering core;

[0016] A carrier communication connection is established between the metering core and the smart terminal based on the meter serial number information.

[0017] This application provides a method for establishing a carrier communication connection between a management chip or metering chip and a smart terminal, achieved through a preset communication channel. The second communication interface of the communication channel is fixedly connected to a carrier communication module, which in turn has a carrier communication connection with the smart terminal. Therefore, when establishing a carrier communication connection between the management chip or metering chip and the smart terminal is required, only the connection object of the first communication interface of the communication channel needs to be changed to establish a complete carrier communication connection, thus improving the speed of connection establishment. Simultaneously, during the connection establishment process, the carrier communication module maintains a constant connection with the smart terminal. This configuration avoids missing commands issued by the smart terminal during connection establishment, further improving the reliability of the dual-chip smart meter operation.

[0018] Furthermore, the connection object of the first communication interface can be switched by a preset channel switching switch, thereby connecting the first communication interface to the communication interface of the management core or to the communication interface of the metering core.

[0019] Furthermore, the metering core and the channel switching switch have independent control connections;

[0020] When the metering core receives the heartbeat signal within a preset time interval, it sends a first control signal to the channel switching switch so that the channel switching switch connects the first communication interface to the communication interface of the management core.

[0021] When the metering core does not receive the heartbeat signal within a preset time interval, it sends a second control signal to the channel switching switch so that the channel switching switch connects the first communication interface to the communication interface of the metering core.

[0022] In this embodiment, a channel switching switch is provided to switch the connection object of the first communication interface, and the channel switching switch is controlled by the metering core. Since the metering core determines whether the management core is operating normally based on the heartbeat signal sent by the management core, when the management core malfunctions or resumes normal operation, the metering core can respond quickly and directly send a control signal to the channel switching switch to switch channels. This improves the response speed of the carrier communication connection in the smart meter and further enhances the reliability of the dual-core smart meter.

[0023] In one possible implementation, the management chip performs a first data transmission with the smart terminal, including:

[0024] Obtain the instructions issued by the smart terminal;

[0025] If the instruction is a management chip service instruction, then the corresponding processing is performed according to the management chip service instruction, and the processing result is uploaded to the smart terminal;

[0026] If the instruction is a meter reading instruction, then the meter reading instruction is transmitted to the metering core so that the metering core can read the meter according to the meter reading instruction;

[0027] The meter reading data sent by the metering core is obtained and uploaded to the smart terminal.

[0028] This application provides a method for transmitting the first data. At this time, the management chip is operating normally. By classifying, judging and processing the instructions issued by the smart terminal, the management chip can not only directly process the management chip business instructions, but also indirectly process the meter reading instructions through transparent transmission, thus ensuring the integrity of the smart meter's functions and services.

[0029] In one possible implementation, the metering chip performs a second data transmission with the smart terminal, including:

[0030] Upload the management chip fault event to the smart terminal;

[0031] Obtain the meter reading instruction issued by the smart terminal;

[0032] The meter is read according to the meter reading instruction to obtain the meter reading data.

[0033] The meter reading data is uploaded to the smart terminal.

[0034] This application provides a method for transmitting second data. When the management chip malfunctions, the metering chip first uploads the management chip malfunction event to the smart terminal, allowing the smart terminal to be aware of the malfunction immediately and arrange for relevant personnel to handle it, thus improving fault handling efficiency. Simultaneously, after receiving the management chip malfunction event, the smart terminal no longer issues management chip service instructions, but only issues meter reading instructions, reducing invalid data transmission and improving data transmission efficiency. The metering chip replaces the management chip to maintain the normal operation of basic data collection and electricity metering services, minimizing the impact of malfunctions on the dual-chip smart meter and ensuring the reliability of the dual-chip smart meter operation.

[0035] Secondly, correspondingly, embodiments of this application provide a carrier communication system for a dual-core smart meter, wherein the dual-core smart meter is provided with a metering core and a management core; the carrier communication system includes an acquisition module, a first data transmission module, and a second data transmission module;

[0036] The acquisition module is used to continuously receive heartbeat signals through the metering core, and the heartbeat signals are continuously sent by the management core under normal working conditions.

[0037] The first data transmission module is used to establish a carrier communication connection between the management chip and a preset smart terminal when the heartbeat signal is received within a preset time interval, thereby enabling the management chip and the smart terminal to perform first data transmission;

[0038] The second data transmission module is used to establish a carrier communication connection between the metering core and the smart terminal when the heartbeat signal is not received within a preset time interval, thereby enabling the metering core and the smart terminal to perform second data transmission.

[0039] In one possible implementation, the management chip performs a first data transmission with the smart terminal, including:

[0040] Obtain the instructions issued by the smart terminal;

[0041] If the instruction is a business instruction, then the corresponding processing is performed according to the business instruction, and the processing result is uploaded to the smart terminal;

[0042] If the instruction is a meter reading instruction, then the meter reading instruction is transmitted to the metering core so that the metering core can read the meter according to the meter reading instruction;

[0043] The meter reading data sent by the metering core is obtained and uploaded to the smart terminal.

[0044] In one possible implementation, the metering chip performs a second data transmission with the smart terminal, including:

[0045] Upload the management chip fault event to the smart terminal;

[0046] Obtain the meter reading instruction issued by the smart terminal;

[0047] The meter is read according to the meter reading instruction to obtain the meter reading data.

[0048] The meter reading data is uploaded to the smart terminal. Attached Figure Description

[0049] Figure 1 This is a schematic flowchart illustrating a carrier communication method for a dual-core smart meter provided in an embodiment of this application.

[0050] Figure 2 This is a schematic diagram of the structure of a dual-core smart meter, which is part of a carrier communication method for dual-core smart meters provided in this application.

[0051] Figure 3 This is a schematic diagram of the control flow of the management chip in a carrier communication method for a dual-chip smart meter provided in an embodiment of this application.

[0052] Figure 4 This is a schematic diagram of the control flow of the metering core in a carrier communication method for a dual-core smart meter provided in an embodiment of this application.

[0053] Figure 5 This is a schematic diagram of a carrier communication system for a dual-core smart meter provided in an embodiment of this application. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0055] It should be noted that the step numbers in this document are only for the convenience of explaining the specific embodiments and are not intended to limit the order in which the steps are performed. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0056] Example 1:

[0057] like Figure 1 As shown, Embodiment 1 provides a carrier communication method for a dual-core smart meter, wherein the dual-core smart meter is provided with a metering core and a management core; the carrier communication method includes steps S1-S3:

[0058] Step S1: Continuously receive heartbeat signals through the metering core, and the heartbeat signals are continuously sent by the management core under normal working conditions;

[0059] Step S2: When the heartbeat signal is received within a preset time interval, a carrier communication connection is established between the management chip and the preset smart terminal, thereby enabling the management chip and the smart terminal to perform the first data transmission.

[0060] Step S3: When the heartbeat signal is not received within a preset time interval, a carrier communication connection is established between the metering core and the smart terminal, thereby enabling the metering core and the smart terminal to perform second data transmission.

[0061] This application provides a carrier communication method for a dual-core smart meter, which determines whether to perform a first data transmission or a second data transmission by receiving a heartbeat signal. In a dual-core smart meter, the metering core is typically used for basic data acquisition and energy metering, while the management core is typically used for various meter management functions and new power system services. Therefore, when the heartbeat signal is received within a preset time interval, it indicates that the management core is still working normally. At this time, the management core performs the first data transmission with the smart terminal to ensure the normal operation of various meter management functions and new power system services. When the heartbeat signal is not received within the preset time interval, it indicates that the management core has failed. At this time, the metering core replaces the management core, and the metering core performs the second data transmission with the smart terminal to ensure the normal operation of basic data acquisition and energy metering. Compared with the prior art, the method provided by this application can ensure the reliable operation of the energy metering system in the event of a management core failure, thus improving the reliability of the dual-core smart meter.

[0062] In a preferred embodiment, in step S1, the management chip can send a heartbeat signal to the metering chip in two ways. The first way is to provide a physical level signal and transmit the transition edge of that signal as the heartbeat signal to the metering chip. The second way is for the metering chip to send a heartbeat message through the data interface with the management chip. The heartbeat message can use various message formats. To prevent misjudgment, the metering chip can implement a heartbeat signal judgment fault-tolerant mechanism. In this example, the management chip sends a heartbeat message every minute. If the metering chip does not receive a heartbeat message for three consecutive minutes, it determines that the management chip is malfunctioning.

[0063] In one possible implementation, step S2, establishing a carrier communication connection between the management chip and a preset smart terminal when the heartbeat signal is received within a preset time interval, includes:

[0064] The first communication interface of the preset communication channel is connected to the communication interface of the management core, wherein the second communication interface of the communication channel is fixedly connected to the carrier communication module of the dual-core smart meter, and there is a carrier communication connection between the carrier communication module and the smart terminal;

[0065] Obtain the meter serial number information sent by the metering core;

[0066] A carrier communication connection is established between the management chip and the smart terminal based on the meter serial number information.

[0067] In a preferred embodiment, when the dual-core smart meter is operating normally, the management core continuously sends heartbeat signals to the metering core at a fixed frequency. Upon detecting the heartbeat signals, the metering core determines that the management core is functioning correctly and maintains its first communication interface connected to the management core's communication interface, thus connecting the management core's communication interface with the carrier communication module's communication interface. The management core obtains the meter serial number from the metering core as a configuration parameter and uses these parameters to configure the carrier communication module, thereby establishing a connection with the remote smart terminal to acquire or upload innovative business data for the new power system. Simultaneously, it transmits relevant commands for basic meter reading functions issued by the smart terminal to the metering core for processing.

[0068] In one possible implementation, step S3, establishing a carrier communication connection between the metering chip and the smart terminal when no heartbeat signal is received within a preset time interval, includes:

[0069] Connect the first communication interface to the communication interface of the metering core;

[0070] A carrier communication connection is established between the metering core and the smart terminal based on the meter serial number information.

[0071] In a preferred embodiment, when an anomaly causes the management chip to become unavailable, the management chip stops sending heartbeat signals. Upon detecting the cessation of the heartbeat signal, the metering chip determines that the management chip is malfunctioning and connects its first communication interface to the metering chip's communication interface, thus connecting the metering chip's communication interface with the carrier communication module's communication interface. The metering chip uses the same meter serial number as a configuration parameter to re-establish a connection with the remote smart terminal, reporting meter reading data and ensuring the normal operation of the basic function of uploading metering data.

[0072] This application provides a method for establishing a carrier communication connection between a management chip or metering chip and a smart terminal, achieved through a preset communication channel. The second communication interface of the communication channel is fixedly connected to a carrier communication module, which in turn has a carrier communication connection with the smart terminal. Therefore, when establishing a carrier communication connection between the management chip or metering chip and the smart terminal is required, only the connection object of the first communication interface of the communication channel needs to be changed to establish a complete carrier communication connection, thus improving the speed of connection establishment. Simultaneously, during the connection establishment process, the carrier communication module maintains a constant connection with the smart terminal. This configuration avoids missing commands issued by the smart terminal during connection establishment, further improving the reliability of the dual-chip smart meter operation.

[0073] Furthermore, the connection object of the first communication interface can be switched by a preset channel switching switch, thereby connecting the first communication interface to the communication interface of the management core or to the communication interface of the metering core.

[0074] Furthermore, the metering core and the channel switching switch have independent control connections;

[0075] When the metering core receives the heartbeat signal within a preset time interval, it sends a first control signal to the channel switching switch so that the channel switching switch connects the first communication interface to the communication interface of the management core.

[0076] When the metering core does not receive the heartbeat signal within a preset time interval, it sends a second control signal to the channel switching switch so that the channel switching switch connects the first communication interface to the communication interface of the metering core.

[0077] In this embodiment, a channel switching switch is provided to switch the connection object of the first communication interface, and the channel switching switch is controlled by the metering core. Since the metering core determines whether the management core is operating normally based on the heartbeat signal sent by the management core, when the management core malfunctions or resumes normal operation, the metering core can respond quickly and directly send a control signal to the channel switching switch to switch channels. This improves the response speed of the carrier communication connection in the smart meter and further enhances the reliability of the dual-core smart meter.

[0078] In a preferred embodiment, the communication architecture of the dual-core smart meter is as follows: Figure 2 As shown, it comprises four parts: a management core, a metering core, a channel switching switch, and a carrier communication module. The communication interfaces of both the management core and the metering core are connected to the channel selection terminal of the channel switching switch. The common terminal (i.e., the second communication interface) of the channel switching switch is connected to the communication interface of the carrier communication module. A data interface exists between the metering core and the management core; the metering core can monitor the operating status of the management core via a heartbeat signal. Simultaneously, the metering core can control the operating status of the channel switching switch, selecting between the management core and metering core communication interfaces at the channel selection terminal, and then connecting to the communication interface of the carrier communication module through the common terminal, achieving flexible switching of the first communication interface.

[0079] In one possible implementation, in step S2, the management chip performs a first data transmission with the smart terminal, including:

[0080] Obtain the instructions issued by the smart terminal;

[0081] If the instruction is a management chip service instruction, then the corresponding processing is performed according to the management chip service instruction, and the processing result is uploaded to the smart terminal;

[0082] If the instruction is a meter reading instruction, then the meter reading instruction is transmitted to the metering core so that the metering core can read the meter according to the meter reading instruction;

[0083] The meter reading data sent by the metering core is obtained and uploaded to the smart terminal.

[0084] This application provides a method for transmitting the first data. At this time, the management chip is operating normally. By classifying, judging and processing the instructions issued by the smart terminal, the management chip can not only directly process the management chip business instructions, but also indirectly process the meter reading instructions through transparent transmission, thus ensuring the integrity of the smart meter's functions and services.

[0085] In a preferred embodiment, after the management chip is powered on, the communication interface control process is as follows: Figure 3 As shown, the specific process is as follows:

[0086] (1) After the management core is powered on, it performs a program initialization operation. After initialization, the management core sends a heartbeat signal to the metering core, indicating that its working status is normal. Correspondingly, the metering core receives the heartbeat message and switches the channel selection terminal of the channel switching switch to connect with the communication interface of the management core. This connects the communication interface of the management core with the communication interface of the carrier communication module.

[0087] (2) After the management core connects its communication interface with the communication interface of the carrier communication module, it obtains the meter serial number from the metering core through the data interface as a carrier communication configuration parameter. Correspondingly, the metering core transmits the meter serial number as a carrier communication configuration parameter to the management core.

[0088] (3) The management chip uses the obtained configuration parameters to configure the carrier communication module and establish a connection with the remote smart terminal. It receives instructions from the remote smart terminal.

[0089] (4) After receiving instructions from remote smart terminals, the management chip determines whether it is a new type of business instruction that needs to be processed by the management chip or a basic business instruction that needs to be processed by the metering chip.

[0090] (5) If the management chip determines that the received instruction needs to be processed by the management chip, it responds to the received instruction and replies with an acknowledgment message.

[0091] (6) If the management core determines that the received instruction needs to be processed by the metering core, it will transmit the received instruction to the metering core through the data interface between the two, and at the same time wait for the metering core to respond to the instruction and transmit the metering core's response message to the carrier communication module.

[0092] In one possible implementation, in step S3, the metering chip performs a second data transmission with the smart terminal, including:

[0093] Upload the management chip fault event to the smart terminal;

[0094] Obtain the meter reading instruction issued by the smart terminal;

[0095] The meter is read according to the meter reading instruction to obtain the meter reading data.

[0096] The meter reading data is uploaded to the smart terminal.

[0097] This application provides a method for transmitting second data. When the management chip malfunctions, the metering chip first uploads the management chip malfunction event to the smart terminal, allowing the smart terminal to be aware of the malfunction immediately and arrange for relevant personnel to handle it, thus improving fault handling efficiency. Simultaneously, after receiving the management chip malfunction event, the smart terminal no longer issues management chip service instructions, but only issues meter reading instructions, reducing invalid data transmission and improving data transmission efficiency. The metering chip replaces the management chip to maintain the normal operation of basic data collection and electricity metering services, minimizing the impact of malfunctions on the dual-chip smart meter and ensuring the reliability of the dual-chip smart meter operation.

[0098] In a preferred embodiment, after the metering core is powered on, the entire meter is initialized, and then the carrier communication module interface is controlled. The entire carrier communication interface control process is as follows: Figure 4 As shown, the specific process is as follows:

[0099] (1) The metering core determines whether it has received the heartbeat signal from the management core. To prevent misjudgment, the metering core can implement a fault-tolerant mechanism for heartbeat signal determination. In this example, the management core sends a heartbeat message once per minute. If the metering core does not receive a heartbeat message within three consecutive minutes, it determines that the management core is malfunctioning.

[0100] (2) After receiving the heartbeat message from the management core, the metering core determines that the management core is working normally. At this time, it uses the control signal of the channel switching switch to switch the channel selection terminal of the channel switching switch to connect with the communication interface of the management core. This connects the communication interface of the management core with the communication interface of the carrier communication module.

[0101] (3) The metering core obtains the meter serial number information and transmits the meter serial number as a configuration parameter to the management core. The management core uses the configuration parameter to configure the carrier communication module and establish a connection with the remote smart terminal.

[0102] (4) After determining that it has not received a heartbeat message from the management core, the metering core considers the management core to be malfunctioning and switches the channel selection terminal of the channel switching switch to connect with the communication interface of the metering core. This connects the communication interface of the metering core with the communication interface of the carrier communication module.

[0103] (5) The metering core reconfigures its carrier communication module using the same carrier communication configuration parameters and establishes a connection with the remote smart terminal via power line carrier communication. After the communication channel is established, it reports management core fault events.

[0104] (6) The metering core enters the independent working state. When the smart terminal issues the meter reading command, the metering core responds in a timely manner and reports the meter reading data to ensure the normal operation of the power metering system.

[0105] In one possible implementation, the management chip and metering chip use different communication interface rates, and the carrier communication module's communication interface has an adaptive rate function. After a communication connection switch, it can automatically adjust the communication interface rate to match the rate of the peer management chip or metering chip. Specifically, the management chip handles new power system services with large amounts of communication data, requiring a higher communication rate for its communication interface with the carrier communication module; the metering chip handles basic data acquisition and energy metering services with smaller amounts of communication data, allowing for a lower-cost, lower-rate communication interface with the carrier communication module. Therefore, the communication interface rates of the management chip and metering chip are not consistent. Correspondingly, the carrier communication module's communication interface has an adaptive rate function, automatically adjusting its rate to match the peer management chip or metering chip's rate after a communication connection switch.

[0106] In one possible implementation, to ensure the reliability and redundancy of carrier communication, the management chip and metering chip initialize and reconfigure the communication module after switching the communication interface connection of the carrier communication module. Then, the communication module re-networks with the remote intelligent terminal, establishing a new carrier communication link connection. However, in reality, the management chip and metering chip use the same carrier communication configuration parameters. If the management chip and metering chip can achieve status and data synchronization, and the business software can seamlessly connect, there is no need to reconfigure the carrier communication module after the interface switch; the previous carrier communication link connection can be directly reused.

[0107] In one possible implementation, this embodiment also supports hot-swapping of the management chip. The metering chip determines the insertion / removal status of the management chip by detecting the presence signal of the management chip. When the metering chip detects that the management chip has been removed, it switches the communication interface of the carrier communication module to the communication interface of the metering chip via a control signal from a channel switching switch, and performs the second data transmission. When the metering chip detects that the management chip has been inserted, it proceeds according to... Figure 4The process shown is followed to ensure the orderly switching and connection of the carrier communication module's communication interface.

[0108] The technical solution provided in this application effectively solves the problem of difficult maintenance of dual-core electricity meters in actual use, and improves the reliability of dual-core smart meter operation. Since the management core operates immature innovative services, it is prone to failure in practical applications, leading to its unavailability and further affecting the reading of metering data, thus preventing the power metering system from functioning properly. The technical solution provided in this application ensures that metering data reading is unaffected when the management core is unavailable, greatly reducing the difficulty and workload for on-site maintenance personnel. Furthermore, the technical solution provided in this application uses the same meter serial number as the carrier communication configuration parameter for both the management core and the metering core, eliminating the need for technical modifications and file changes to the existing power metering system, achieving separation and redundancy of dual-core carrier communication functions at minimal cost.

[0109] Example 2:

[0110] like Figure 5 As shown, correspondingly, Embodiment 2 provides a carrier communication system for a dual-core smart meter, wherein the dual-core smart meter is provided with a metering core and a management core; the carrier communication system includes an acquisition module 10, a first data transmission module 20 and a second data transmission module 30;

[0111] The acquisition module 10 is used to continuously receive heartbeat signals through the metering core, and the heartbeat signals are continuously sent by the management core under normal working conditions.

[0112] The first data transmission module 20 is used to establish a carrier communication connection between the management chip and a preset smart terminal when the heartbeat signal is received within a preset time interval, thereby enabling the management chip and the smart terminal to perform first data transmission;

[0113] The second data transmission module 30 is used to establish a carrier communication connection between the metering core and the smart terminal when the heartbeat signal is not received within a preset time interval, thereby enabling the metering core and the smart terminal to perform second data transmission.

[0114] In one possible implementation, the management chip performs a first data transmission with the smart terminal, including:

[0115] Obtain the instructions issued by the smart terminal;

[0116] If the instruction is a business instruction, then the corresponding processing is performed according to the business instruction, and the processing result is uploaded to the smart terminal;

[0117] If the instruction is a meter reading instruction, then the meter reading instruction is transmitted to the metering core so that the metering core can read the meter according to the meter reading instruction;

[0118] The meter reading data sent by the metering core is obtained and uploaded to the smart terminal.

[0119] In one possible implementation, the metering chip performs a second data transmission with the smart terminal, including:

[0120] Upload the management chip fault event to the smart terminal;

[0121] Obtain the meter reading instruction issued by the smart terminal;

[0122] The meter is read according to the meter reading instruction to obtain the meter reading data.

[0123] The meter reading data is uploaded to the smart terminal.

[0124] This application provides a carrier communication system for a dual-core smart meter, which determines whether to perform a first data transmission or a second data transmission by receiving a heartbeat signal. In a dual-core smart meter, the metering core is typically used for basic data acquisition and energy metering, while the management core is typically used for various meter management functions and new power system services. Therefore, when the heartbeat signal is received within a preset time interval, it indicates that the management core is still working normally. At this time, the management core performs the first data transmission with the smart terminal to ensure the normal operation of various meter management functions and new power system services. When the heartbeat signal is not received within the preset time interval, it indicates that the management core has failed. At this time, the metering core replaces the management core, and the metering core performs the second data transmission with the smart terminal to ensure the normal operation of basic data acquisition and energy metering. Compared with the prior art, the method provided by this application can ensure the reliable operation of the energy metering system in the event of a management core failure, thus improving the reliability of the dual-core smart meter.

[0125] For a more detailed explanation of the working principle and procedures of this embodiment, please refer to the relevant description in Embodiment 1.

[0126] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application for those skilled in the art.

Claims

1. A carrier communication method for a dual-core smart meter, characterized in that, The dual-core smart meter is equipped with a metering core and a management core; the carrier communication method includes: The metering core continuously receives heartbeat signals, which are continuously sent by the management core under normal operating conditions. When the heartbeat signal is received within a preset time interval, a carrier communication connection is established between the management chip and the preset smart terminal, thereby enabling the management chip and the smart terminal to perform the first data transmission. When the heartbeat signal is not received within a preset time interval, a carrier communication connection is established between the metering core and the smart terminal, thereby enabling the metering core and the smart terminal to perform a second data transmission. The step of establishing a carrier communication connection between the management chip and a preset smart terminal when the heartbeat signal is received within a preset time interval includes: The first communication interface of the preset communication channel is connected to the communication interface of the management core, wherein the second communication interface of the communication channel is fixedly connected to the carrier communication module of the dual-core smart meter, and there is a carrier communication connection between the carrier communication module and the smart terminal; Obtain the meter serial number information sent by the metering core; A carrier communication connection is established between the management chip and the smart terminal based on the meter serial number information; The step of establishing a carrier communication connection between the metering chip and the smart terminal when no heartbeat signal is received within a preset time interval includes: Connect the first communication interface to the communication interface of the metering core; A carrier communication connection is established between the metering core and the smart terminal based on the meter serial number information; The connection object of the first communication interface is switched by a preset channel switching switch, thereby connecting the first communication interface to the communication interface of the management core or to the communication interface of the metering core. The metering core and the channel switching switch have independent control connections.

2. The carrier communication method for a dual-core smart meter as described in claim 1, characterized in that... ； When the metering core receives the heartbeat signal within a preset time interval, it sends a first control signal to the channel switching switch so that the channel switching switch connects the first communication interface to the communication interface of the management core. When the metering core does not receive the heartbeat signal within a preset time interval, it sends a second control signal to the channel switching switch so that the channel switching switch connects the first communication interface to the communication interface of the metering core.

3. The carrier communication method for a dual-core smart meter as described in claim 1, characterized in that, The management chip performs a first data transmission with the smart terminal, including: Obtain the instructions issued by the smart terminal; If the instruction is a management chip service instruction, then the corresponding processing is performed according to the management chip service instruction, and the processing result is uploaded to the smart terminal; If the instruction is a meter reading instruction, then the meter reading instruction is transmitted to the metering core so that the metering core can read the meter according to the meter reading instruction; The meter reading data sent by the metering core is obtained and uploaded to the smart terminal.

4. The carrier communication method for a dual-core smart meter as described in claim 1, characterized in that, The metering chip and the smart terminal perform a second data transmission, including: Upload the management chip fault event to the smart terminal; Obtain the meter reading instruction issued by the smart terminal; The meter is read according to the meter reading instruction to obtain the meter reading data. The meter reading data is uploaded to the smart terminal.

5. A carrier communication system for a dual-core smart meter, characterized in that, The dual-core smart meter is equipped with a metering core and a management core; the carrier communication system includes an acquisition module, a first data transmission module, and a second data transmission module. The acquisition module is used to continuously receive heartbeat signals through the metering core, and the heartbeat signals are continuously sent by the management core under normal working conditions. The first data transmission module is used to establish a carrier communication connection between the management chip and a preset smart terminal when the heartbeat signal is received within a preset time interval, thereby enabling the management chip and the smart terminal to perform first data transmission; The second data transmission module is used to establish a carrier communication connection between the metering core and the smart terminal when the heartbeat signal is not received within a preset time interval, thereby enabling the metering core and the smart terminal to perform second data transmission. The step of establishing a carrier communication connection between the management chip and a preset smart terminal when the heartbeat signal is received within a preset time interval includes: The first communication interface of the preset communication channel is connected to the communication interface of the management core, wherein the second communication interface of the communication channel is fixedly connected to the carrier communication module of the dual-core smart meter, and there is a carrier communication connection between the carrier communication module and the smart terminal; Obtain the meter serial number information sent by the metering core; A carrier communication connection is established between the management chip and the smart terminal based on the meter serial number information; The step of establishing a carrier communication connection between the metering chip and the smart terminal when no heartbeat signal is received within a preset time interval includes: Connect the first communication interface to the communication interface of the metering core; A carrier communication connection is established between the metering core and the smart terminal based on the meter serial number information; The connection object of the first communication interface is switched by a preset channel switching switch, thereby connecting the first communication interface to the communication interface of the management core or to the communication interface of the metering core. The metering core and the channel switching switch have independent control connections.

6. A carrier communication system for a dual-core smart meter as described in claim 5, characterized in that, The management chip performs a first data transmission with the smart terminal, including: Obtain the instructions issued by the smart terminal; If the instruction is a business instruction, then the corresponding processing is performed according to the business instruction, and the processing result is uploaded to the smart terminal; If the instruction is a meter reading instruction, then the meter reading instruction is transmitted to the metering core so that the metering core can read the meter according to the meter reading instruction; The meter reading data sent by the metering core is obtained and uploaded to the smart terminal.

7. A carrier communication system for a dual-core smart meter as described in claim 5, characterized in that, The metering chip and the smart terminal perform a second data transmission, including: Upload the management chip fault event to the smart terminal; Obtain the meter reading instruction issued by the smart terminal; The meter is read according to the meter reading instruction to obtain the meter reading data. The meter reading data is uploaded to the smart terminal.

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