A method and system for backing up operating parameters of smart meters

Abstract

The present invention discloses a backup method and system for the operation parameters of a smart meter, and relates to the technical field of operation parameter management of smart meters. A data relay backup storage unit is set for each network group, and a number of smart meters in the network group pack the operation parameters based on the sending timestamp to form a parameter backup data packet at set intervals, and the parameter backup data packet is sent to the data relay backup storage unit via a wireless network. The present invention adopts a mode of setting multiple data relay backup storage units to perform regional local backup of operation parameter data, avoiding a large number of operation parameter backups from constantly communicating with a central control server, backing up, and other operations, greatly reducing the storage unit capacity requirements of the central control server, reducing the computing power requirements of the central control server, reducing the operation load of the central control server, and ensuring the stable operation of the smart meter system.

Description

Technical Field

[0001] The present invention relates to the technical field of smart meter operating parameter management, and in particular to a method and system for backing up the operating parameters of a smart meter. Background Art

[0002] At present, smart meters are widely used in power Internet of Things systems, responsible for automatically collecting user electricity consumption data and uploading it to the backend server for management. However, the existing power Internet of Things system has some problems in the management of smart meter operating parameters.

[0003] First, the existing power Internet of Things system lacks effective management of the operating parameters of smart meters. Once a smart meter fails to operate, its operating parameters are at risk of being lost. Although the operating parameters can be backed up through the data management server, since the operating parameters generally change with the seasons, under normal circumstances, there may be multiple sets of operating parameters for a single smart meter. The backup and communication of these operating parameters will increase the storage pressure of the server and the normal data acquisition bandwidth pressure, resulting in excessive storage resources being occupied, affecting the operation of other services. In addition, if the data management server is attacked by a network attack, the operating parameters of the entire system may be leaked, affecting the operation of the system business.

[0004] The Chinese invention patent with publication number CN112650630B discloses a distributed backup method and device for the operating parameters of smart meters. A data management server sets a master node and multiple slave nodes based on each smart meter in the current group, obtains unified configuration data corresponding to each smart meter in the current group, generates operating parameters based on the unified configuration data, generates an identity list based on the identity identifiers of each smart meter in the current group, and sends the operating parameters and identity list to the master node; the master node distributes the operating parameters to each slave node based on the identity list, splits the operating parameters into multiple mutually redundant parameter packages, and stores each parameter package in its own internal storage and each slave node in a distributed manner.

[0005] The above technical solution mainly relies on the data management server for centralized management. Although the unified configuration data corresponding to each smart meter in the current group is used to generate operating parameters based on the unified configuration data, the storage pressure of the data management server can be alleviated to a certain extent. However, when there are many smart meter groups in the area, the storage and computing pressure of the data management server is still large. In addition, only keys are used for security management of parameters. Once the keys are cracked, the operating parameter data of a batch of smart meters will be leaked, affecting the safe operation of the smart meter system. Summary of the invention

[0006] In order to solve the technical problem of backing up the operating parameters of the multi-user smart meter, the present invention provides a method and system for backing up the operating parameters of the smart meter. The following technical solution is adopted:

[0007] A method for backing up operating parameters of a smart meter comprises the following steps:

[0008] Step 1: multiple smart meters in the area are grouped according to the network networking status, and a data relay backup storage unit is set for each network group;

[0009] Step 2: At set intervals, several smart meters in the network group package the operating parameters based on the sending timestamp to form a parameter backup data packet, and the parameter backup data packet is sent to the data relay backup storage unit via the wireless network;

[0010] Step 3, the relay backup storage unit parses the new parameter backup data packet of the corresponding numbered smart meter, compares the current new operating parameters with the historical operating parameters, and if there are the same operating parameters, classifies and stores them; if the current new operating parameters are different from the historical operating parameters, performs a new operating parameter classification operation on the current new operating parameters;

[0011] Step 4: If the staff needs to set new operating parameters for the smart meter;

[0012] If the new operating parameter is one of the historical operating parameters, a handheld smart terminal is used to communicate and interact with the data relay backup storage unit where the corresponding smart meter is located, and the target operating parameter and the number of the corresponding smart meter are selected. The data relay backup storage unit calls the parameter backup data of the target operating parameter and requests the interactive parameter backup data from the smart meter with the corresponding number. The staff then communicates with the smart meter with the corresponding number through the handheld smart terminal to implement the new operating parameter settings.

[0013] By adopting the above technical solutions, smart meter networking refers to connecting several smart meters in a certain area through a communication network to form a network group to achieve centralized data collection, monitoring and analysis. The following are some common wireless implementation forms of networking:

[0014] Wireless LAN (Wi-Fi): Install a Wi-Fi module in the smart meter and connect to the network through a wireless access point (AP).

[0015] Cellular network: Data is transmitted through the cellular network of mobile operators (such as 4G / 5G).

[0016] Radio Frequency Communication (RF): uses radio frequencies for data transmission, such as ZigBee, LoRa, NB-IoT, etc.

[0017] The network demand for backup of the operating parameters of smart meters is realized based on the existing wireless networking. A data relay backup storage unit is set for each network group. The data relay backup storage unit has data analysis capability, backup capability and wireless communication capability. It is generally realized based on a memory, a data analysis chip and a wireless communication module. At set intervals, several smart meters in the network group will package the operating parameters based on the sending timestamp to form a parameter backup data packet. The parameter backup data packet is sent to the data relay backup storage unit through the wireless network. For example, the operating parameter backup time is at dawn every day. The smart meter needs to package the currently set operating parameter data and send it to the data relay backup storage unit for backup.

[0018] After receiving the parameter backup data packet, the data relay backup storage unit needs to parse the new parameter backup data packet sent by the smart meter with the corresponding label, and compare it with the stored historical operation parameter backup data. The comparison item is the parameter value of all items of the parameter. If they are completely consistent, label classification processing is performed. Label classification can be based on software version or other key parameters, such as billing mode, communication protocol, and encryption method. This classification method can be classified according to specific circumstances. For example, the encryption method is often changed, so it is classified and stored in an encrypted manner, which is convenient for staff to find the corresponding historical operation parameter data as soon as possible when setting parameters;

[0019] When the staff needs to set new operating parameters for the smart meter, if it is one of the historical operating parameters, the handheld smart terminal can be used to wirelessly communicate with the data relay backup storage unit where the corresponding smart meter is located, and the operating parameter data packet of the corresponding numbered smart meter can be quickly retrieved based on classification retrieval, such as encryption. The called operating parameter data does not communicate with the handheld smart terminal, but directly requests the interactive parameter backup data of the corresponding numbered smart meter, so as to minimize the leakage of backup data;

[0020] The mode of setting up multiple data relay backup storage units is adopted to perform regional local backup of operating parameter data, avoiding a large number of operating parameter backups constantly communicating and backing up with the central control server, greatly reducing the storage unit capacity requirements of the central control server, reducing the computing power requirements of the central control server, reducing the operating load of the central control server, and ensuring the stable operation of the smart meter system.

[0021] Optionally, in step 2, for a number of smart meters in a network group, the transmission time of the parameter backup data packet is within the backup window period formed by the set time range, and the transmission control process of the parameter backup data packet is as follows:

[0022] Step 21, the data relay backup storage unit uses a random number generation algorithm to generate a number sending sequence for a number of smart meter numbers in the network group;

[0023] Step 22, the data relay backup storage unit makes a parameter communication request based on the generated label sequence;

[0024] Step 23, the corresponding numbered smart meter that receives the parameter communication request packages the parameter backup data packet based on the current timestamp, and sends the parameter backup data packet to the data relay backup storage unit;

[0025] Step 24: the data relay backup storage unit stores the parameter backup data packets in sequence.

[0026] By adopting the above technical solution, the setting of the backup window period can take into account the trough period of network communication, such as the second half of the night. The backup of the operating parameters is only performed within the backup window period to avoid communication obstacles to the wireless communication network. For several smart meters in the network group, the sending order of their parameter backup data packets is generated by the data relay backup storage unit using a random number generation algorithm. Since the number of smart meters in the network group is not large, Arabic numerals are directly used for numbering. For all numbers, a random number generation algorithm is used to randomly generate a number each time, and then a random number generation algorithm is used to generate a number for the remaining number after subtracting this number, and the order in which the generated numbers are recorded, that is, the order in which the numbers are sent;

[0027] The communication process is that the data relay backup storage unit first sends a communication request to the smart meter based on the sending order. For example, when it is the turn of the smart meter numbered XY to back up the operating parameters, a communication request is sent to the smart meter numbered XY. If the number corresponding to the received parameter backup data is not XY, it proves the possibility of a network deception attack, which improves the security of the backup system.

[0028] Optionally, the transmission time of the parameter backup data packet of each smart meter does not exceed 3 seconds, and the backup window period of several smart meters in the network group is three times the number of smart meters in the network group. If the backup operation of several smart meters in the network group is not completed within the backup window period, the data relay backup storage unit will interact with the remote central control server. Network abnormality signal.

[0029] By adopting the above technical solution, the transmission time of the parameter backup data packet of each smart meter is usually about 1 second. Here, the transmission time of the parameter backup data packet of each smart meter does not exceed 3 seconds. The backup window period of several smart meters in the entire network group is three times the number of smart meters in the network group. If the data relay backup storage unit does not receive complete backup data within the backup window period, it is considered that a communication failure or an abnormality in a smart meter occurs, and a network abnormality signal needs to be exchanged with the remote central control server. The staff needs to go to the site as soon as possible for investigation.

[0030] Optionally, in step 23, a network sniffing module is used to monitor the data flow of a process in which a plurality of smart meters send parameter backup data packets to a data relay backup storage unit in a sequence of numbered transmissions;

[0031] If the network sniffing module analyzes whether there is abnormality and malicious data in the data stream, if so, it will exchange an alarm signal with the relay backup storage unit, and the relay backup storage unit will stop communicating with the smart meter, and at the same time exchange the abnormal monitoring data of the network sniffing module with the remote central control server.

[0032] By adopting the above technical solutions, the network sniffing module can be integrated into the network infrastructure, such as switches, routers, and wireless communication modules, making it difficult to be discovered. Real-time packet capture and analysis is achieved, and the running parameter packets can be identified and recorded. Deep packet inspection (DPI) is performed on the packets to identify potential network attacks. Libraries such as libpcap are used to capture packets at the bottom layer without interfering with normal network traffic. Focus on capturing the parameter backup packets sent to the relay backup storage unit, and analyze the source address corresponding label, destination address, protocol type, data content, etc. of the parameter backup packets. Check whether the packets contain abnormal or malicious patterns, such as SQL injection, DDoS attacks, etc. Establish a baseline behavior model to compare the real-time data flow and identify abnormal behavior. Use an intrusion detection system (IDS) or an intrusion prevention system (IPS) to assist in identifying attacks. Restrict access to the network sniffing module to only authorized administrators. Record all network sniffing activities and related events, including successful and failed access attempts. Implement firewalls and intrusion prevention systems to block known network attacks. Use traffic shaping and rate limiting to mitigate the impact of DDoS attacks.

[0033] An emergency response plan can be developed to take immediate action once a cyber attack is detected.

[0034] In the process of monitoring the smart meter sending the operating parameter data packet to the relay backup storage unit, network attacks can be effectively avoided and the security of data transmission can be ensured.

[0035] Optionally, in step 4, if the new operating parameters are completely new, the staff uses a handheld smart terminal to directly establish communication with the corresponding smart meter, and completes the setting of the new operating parameters after transmitting the new operating parameters to the smart meter through the handheld smart terminal;

[0036] The smart meter that has completed the new operating parameter setting will package the new operating parameters into a parameter backup data packet based on the sending timestamp, and send a new parameter backup request to the data relay backup storage unit during the non-backup window period, and send the parameter backup data packet to the data relay backup storage unit via the wireless network for backup.

[0037] Optionally, if the data relay backup storage unit receives a parameter backup data packet during a non-backup window period, it will perform a new operating parameter classification operation on the parameter backup data packet after parsing it.

[0038] By adopting the above technical solution, for the setting of new operating parameters, since there are many setting items, a handheld smart terminal can be used to transmit the new operating parameters to the smart meter to complete the new operating parameter setting. After the new operating parameters are set, they need to be backed up as soon as possible. The backup method is the same as the regular backup to avoid the loss of the new operating parameters.

[0039] A backup system for operating parameters of a smart meter is used to implement a backup method for operating parameters of a smart meter. The backup system includes multiple relay backup storage units, multiple network sniffing modules and a handheld smart terminal. The relay backup storage unit is arranged in the physical middle area of ​​a network group composed of several smart meters, and several smart meters in the network group are respectively communicated with the relay backup storage unit through the network sniffing module. The relay backup storage unit is communicated with a remote central control server. The handheld smart terminal is wirelessly connected to the relay backup storage unit and the network sniffing module in the network group based on a wireless network.

[0040] Optionally, the relay backup storage unit includes a backup memory, a data analysis chip and a wireless communication module. The backup memory is wirelessly connected to several smart meters in the network group through the wireless communication module. The network sniffing module is communicatively connected to the wireless communication module to monitor the data flow input and output of the backup memory. The data analysis chip is communicatively connected to the backup memory.

[0041] Optionally, the relay backup storage unit also includes a control chip and an electric control switch, the control chip is communicatively connected to the network sniffing module, the electric control switch is used to control the switch of the wireless communication module, and the control chip controls the electric control switch to disconnect the communication of the wireless communication module based on the alarm signal of the network sniffing module.

[0042] Optionally, the wireless communication module is based on 4G or 5G wireless communication technology.

[0043] In summary, the present invention includes at least one of the following beneficial technical effects: Smart meter networking refers to connecting several smart meters in a certain area through a communication network to form a network group to realize centralized data collection, monitoring and analysis. The network demand for backup of smart meter operating parameters is realized based on the existing wireless networking, and a data relay backup storage unit is set for each network group. At set intervals, several smart meters in the network group package the operating parameters based on the sending timestamp to form a parameter backup data packet, and the parameter backup data packet is sent to the data relay backup storage unit through the wireless network;

[0044] After receiving the parameter backup data packet, the data relay backup storage unit needs to parse the new parameter backup data packet sent by the corresponding numbered smart meter and compare it with the stored historical operation parameter backup data. The comparison item is the parameter value of all items of the parameter. If they are completely consistent, the label classification processing is performed to facilitate the staff to find the corresponding historical operation parameter data as soon as possible when setting the parameters;

[0045] When the staff needs to set new operating parameters for the smart meter, if it is one of the historical operating parameters, the handheld smart terminal can be used to wirelessly communicate with the data relay backup storage unit where the corresponding smart meter is located, based on classification retrieval, and the called operating parameter data does not communicate with the handheld smart terminal, but directly requests the interactive parameter backup data of the corresponding numbered smart meter, so as to minimize the leakage of backup data;

[0046] The mode of setting up multiple data relay backup storage units is adopted to perform regional local backup of operating parameter data, avoiding a large number of operating parameter backups constantly communicating and backing up with the central control server, greatly reducing the storage unit capacity requirements of the central control server, reducing the computing power requirements of the central control server, reducing the operating load of the central control server, and ensuring the stable operation of the smart meter system. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a flow chart of a method for backing up operating parameters of a smart meter according to the present invention;

[0048] Figure 2 The present invention is a schematic diagram of the component connection principle of a backup system for operating parameters of a smart meter.

[0049] Explanation of the accompanying drawings: 1. Relay backup storage unit; 111. Backup memory; 112. Data analysis chip; 113. Control chip; 114. Wireless communication module; 115. Electric control switch; 2. Network sniffing module; 100. Smart meter; 101. Handheld smart terminal; 102. Remote central control server. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0051] The embodiment of the invention discloses a method and system for backing up operating parameters of a smart meter.

[0052] Reference Figure 1 and Figure 2 , Embodiment 1, a method for backing up operating parameters of a smart meter, comprising the following steps:

[0053] Step 1, multiple smart meters 100 in the area are grouped according to the network networking status, and a data relay backup storage unit 1 is set for each network group;

[0054] Step 2: At set intervals, several smart meters 100 in the network group package the operating parameters based on the sending timestamp to form a parameter backup data packet, and the parameter backup data packet is sent to the data relay backup storage unit 1 via the wireless network;

[0055] Step 3, the relay backup storage unit 1 parses the new parameter backup data packet of the corresponding numbered smart meter 100, compares the current new operating parameters with the historical operating parameters, and if there are the same operating parameters, classifies and stores them; if the current new operating parameters are different from the historical operating parameters, performs a new operating parameter classification operation on the current new operating parameters;

[0056] Step 4: If the staff needs to set new operating parameters for the smart meter 100;

[0057] If the new operating parameter is one of the historical operating parameters, the handheld smart terminal 101 is used to communicate and interact with the data relay backup storage unit 1 where the corresponding smart meter 100 is located, and the target operating parameter and the number of the corresponding smart meter 100 are selected. The data relay backup storage unit 1 calls the parameter backup data of the target operating parameter and requests the interactive parameter backup data from the corresponding numbered smart meter 100. The staff then communicates with the corresponding numbered smart meter 100 through the handheld smart terminal 101 to implement the new operating parameter settings.

[0058] Smart meter networking refers to connecting several smart meters 100 in a certain area through a communication network to form a network group to achieve centralized data collection, monitoring and analysis. The following are some common wireless implementation forms of networking:

[0059] Wireless LAN (Wi-Fi): A Wi-Fi module is installed in the smart meter 100 and connected to the network through a wireless access point (AP).

[0060] Cellular network: Data is transmitted through the cellular network of mobile operators (such as 4G / 5G).

[0061] Radio Frequency Communication (RF): uses radio frequencies for data transmission, such as ZigBee, LoRa, NB-IoT, etc.

[0062] The network demand for backup of the operating parameters of the smart meter is realized based on the existing wireless networking. Each network group is provided with a data relay backup storage unit 1. The data relay backup storage unit 1 has data analysis capability, backup capability and wireless communication capability, and is generally realized based on a memory, a data analysis chip and a wireless communication module. At set intervals, several smart meters 100 in the network group will package the operating parameters based on the sending timestamp to form a parameter backup data packet, and the parameter backup data packet will be sent to the data relay backup storage unit 1 through the wireless network. For example, the operating parameter backup time is at midnight every day, and the smart meter 100 needs to package the currently set operating parameter data and send it to the data relay backup storage unit 1 for backup;

[0063] After receiving the parameter backup data packet, the data relay backup storage unit 1 needs to parse the new parameter backup data packet sent by the corresponding numbered smart meter 100, and compare it with the stored historical operation parameter backup data. The comparison item is the parameter value of all items of the parameter. If they are completely consistent, label classification processing is performed. Label classification can be based on software version or other key parameters, such as billing mode, communication protocol, and encryption method. This classification method can be classified according to specific circumstances. For example, the encryption method is often changed, so it is classified and stored in an encrypted manner, which is convenient for staff to find the corresponding historical operation parameter data as soon as possible when setting parameters;

[0064] When the staff needs to set new operating parameters for the smart meter 100, if it is one of the historical operating parameters, the handheld smart terminal 101 can be used to wirelessly communicate with the data relay backup storage unit 1 where the corresponding smart meter 100 is located, and the operating parameter data packet of the corresponding numbered smart meter 100 can be quickly retrieved based on classification retrieval, such as encryption. The called operating parameter data is not communicated with the handheld smart terminal 101, but directly requests the interactive parameter backup data of the corresponding numbered smart meter 100, so as to minimize the leakage of backup data;

[0065] A mode of setting up multiple data relay backup storage units 1 is adopted to perform regional local backup of operating parameter data, avoiding a large number of operating parameter backups constantly communicating and backing up with the central control server 102, greatly reducing the storage unit capacity requirements of the central control server 102, reducing the computing power requirements of the central control server 102, reducing the operating load of the central control server 102, and ensuring the stable operation of the smart meter system.

[0066] In Example 2, in step 2, for a number of smart meters 100 in a network group, the transmission time of the parameter backup data packet is within the backup window period formed by the set time range, and the transmission control process of the parameter backup data packet is as follows:

[0067] Step 21, the data relay backup storage unit 1 uses a random number generation algorithm to generate a number sending sequence for the labels of a number of smart meters 100 in the network group;

[0068] Step 22, the data relay backup storage unit 1 makes a parameter communication request based on the generated label sequence;

[0069] Step 23, the corresponding numbered smart meter 100 that receives the parameter communication request packages the parameter backup data packet based on the current timestamp, and sends the parameter backup data packet to the data relay backup storage unit 1;

[0070] Step 24: the data relay backup storage unit 1 stores the parameter backup data packets in sequence.

[0071] The setting of the backup window period can take into account the trough period of network communication, such as the second half of the night. The backup of the operating parameters is only performed within the backup window period to avoid communication barriers to the wireless communication network. For several smart meters 100 in the network group, the sending order of their parameter backup data packets is generated by the data relay backup storage unit 1 using a random number generation algorithm. Since the number of several smart meters 100 in the network group is not large, Arabic numerals are directly used for numbering. For all numbers, a random number generation algorithm is used to randomly generate a number each time, and then a random number generation algorithm is used to generate a number for the remaining number after subtracting this number, and the order in which the generated numbers are recorded is the order in which the numbers are sent;

[0072] The communication process is that the data relay backup storage unit 1 first sends a communication request to the smart meter 100 based on the sending order. For example, when it is the turn of the smart meter 100 numbered XY to back up the operating parameters, a communication request is sent to the smart meter 100 numbered XY. If the number corresponding to the received parameter backup data is not XY, it proves that there is a possibility of a network deception attack, thereby improving the security of the backup system.

[0073] In embodiment 3, the transmission time of the parameter backup data packet of each smart meter 100 does not exceed 3 seconds, and the backup window period time span of several smart meters 100 in the network group is three times the number of smart meters 100 in the network group. If the backup operation of several smart meters 100 in the network group is not completed after the backup window period, the data relay backup storage unit 1 sends an interactive network abnormality signal to the remote central control server 102.

[0074] Normally, the transmission time of the parameter backup data packet of each smart meter 100 is about 1 second. Here, the transmission time of the parameter backup data packet of each smart meter 100 does not exceed 3 seconds. The backup window period time span of several smart meters 100 in the entire network group is three times the number of smart meters 100 in the network group. If the data relay backup storage unit 1 does not receive complete backup data within the backup window period, it is considered that a communication failure or an abnormality occurs in a smart meter 100, and a network abnormality signal needs to be exchanged with the remote central control server 102. The staff needs to go to the site as soon as possible for investigation.

[0075] In Example 4, in step 23, a network sniffing module 2 is used to monitor the data flow of a process in which a plurality of smart meters 100 send parameter backup data packets to a data relay backup storage unit 1 in a sequence of numbered transmissions;

[0076] If the network sniffing module 2 analyzes whether there is abnormality and malicious data in the data stream, if so, it exchanges an alarm signal with the relay backup storage unit 1, and the relay backup storage unit 1 stops communicating with the smart meter 100, and at the same time exchanges the abnormal monitoring data of the network sniffing module 2 with the remote central control server 102.

[0077] The network sniffing module 2 can be integrated into the network infrastructure, such as switches, routers, and wireless communication modules, making it less likely to be discovered. Real-time packet capture and analysis is achieved, and the operating parameter packets can be identified and recorded. Deep packet inspection (DPI) is performed on the packets to identify potential network attacks. Libraries such as libpcap are used to capture packets at the bottom layer without interfering with normal network traffic. Focus on capturing the parameter backup packets sent to the relay backup storage unit 1, and analyze the source address corresponding label, destination address, protocol type, data content, etc. of the parameter backup packets. Check whether the packets contain abnormal or malicious patterns, such as SQL injection, DDoS attacks, etc. Establish a baseline behavior model to compare the real-time data flow and identify abnormal behavior. Use an intrusion detection system (IDS) or an intrusion prevention system (IPS) to assist in identifying attacks. Restrict access to the network sniffing module 2 to only authorized administrators. Record all network sniffing activities and related events, including successful and failed access attempts. Implement firewalls and intrusion prevention systems to block known network attacks. Use traffic shaping and rate limiting to mitigate the impact of DDoS attacks.

[0078] An emergency response plan can be developed to take immediate action once a cyber attack is detected.

[0079] In the process of monitoring the smart meter 100 to send an operating parameter data packet to the relay backup storage unit 1, network attacks can be effectively avoided and the security of data transmission can be ensured.

[0080] In Example 5, in step 4, if the new operating parameters are completely new, the staff uses the handheld smart terminal 101 to directly establish communication with the corresponding smart meter 100, and completes the new operating parameter setting after transmitting the new operating parameters to the smart meter 100 through the handheld smart terminal 101;

[0081] The smart meter 100 that has completed the new operating parameter setting packages the new operating parameters into a parameter backup data packet based on the sending timestamp, and sends a new parameter backup request to the data relay backup storage unit 1 during the non-backup window period, and sends the parameter backup data packet to the data relay backup storage unit 1 via the wireless network for backup.

[0082] In embodiment 6, if the data relay backup storage unit 1 receives a parameter backup data packet during a non-backup window period, the parameter backup data packet is subjected to a new operation parameter classification operation after being parsed.

[0083] For the setting of new operating parameters, since there are many setting items, the handheld smart terminal 101 can be used to transmit the new operating parameters to the smart meter 100 to complete the new operating parameter setting. After the new operating parameters are set, they need to be backed up as soon as possible. The backup method is the same as the regular backup to avoid the loss of the new operating parameters.

[0084] Embodiment 7, a backup system for operating parameters of a smart meter, is used to implement a backup method for operating parameters of a smart meter, the backup system includes multiple relay backup storage units 1, multiple network sniffing modules 2 and a handheld smart terminal 101, the relay backup storage unit 1 is arranged in the physical middle area of ​​a network group composed of several smart meters 100, and the several smart meters 100 in the network group are respectively communicated with the relay backup storage unit 1 through the network sniffing module 2, the relay backup storage unit 1 is communicated with the remote central control server 102, and the handheld smart terminal 101 is wirelessly connected to the relay backup storage unit 1 and the network sniffing module 2 in the network group based on a wireless network.

[0085] Embodiment 8, the relay backup storage unit 1 includes a backup memory 111, a data analysis chip 112, a control chip 113 and a wireless communication module 114, the backup memory 111 is wirelessly connected to a plurality of smart meters 100 in a network group through the wireless communication module 114, the network sniffing module 2 is communicatively connected to the wireless communication module 114, and monitors the data flow input and output of the backup memory 111,

[0086] Embodiment 9, the relay backup storage unit 1 includes a backup memory 111, a data analysis chip 112 and a wireless communication module 114, the backup memory 111 is wirelessly connected to several smart meters 100 in the network group through the wireless communication module 114, the network sniffing module 2 is communicatively connected to the wireless communication module 114 to monitor the data flow input and output of the backup memory 111, and the data analysis chip 112 is communicatively connected to the backup memory 111.

[0087] In embodiment 10, the wireless communication module 114 is based on 4G or 5G wireless communication technology.

[0088] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for backing up operating parameters of a smart meter, characterized in that: The following steps are involved: Step 1, grouping multiple smart meters (100) in the area according to the network networking status, and setting a data relay backup storage unit (1) for each network group; Step 2: at set intervals, a number of smart meters (100) in a network group package the operating parameters based on a sending timestamp to form a parameter backup data packet, and the parameter backup data packet is sent to a data relay backup storage unit (1) via a wireless network; Step 3, the relay backup storage unit (1) parses the new parameter backup data packet of the corresponding numbered smart meter (100), compares the current new operating parameters with the historical operating parameters, and if the same operating parameters exist, classifies and stores them; if the current new operating parameters are different from the historical operating parameters, performs a new operating parameter classification operation on the current new operating parameters; Step 4: if the staff needs to set new operating parameters for the smart meter (100); If the new operating parameter is one of the historical operating parameters, the handheld smart terminal (101) is used to communicate and interact with the data relay backup storage unit (1) where the corresponding smart meter (100) is located, and the target operating parameter and the number of the corresponding smart meter (100) are selected. The data relay backup storage unit (1) calls the parameter backup data of the target operating parameter and requests the interactive parameter backup data from the corresponding numbered smart meter (100). The staff then communicates with the corresponding numbered smart meter (100) through the handheld smart terminal (101) to realize the setting of the new operating parameter; In step 2, for a number of smart meters (100) in a network group, the transmission time of the parameter backup data packet is within a backup window period formed by a set time range, and the transmission control process of the parameter backup data packet is as follows: Step 21, the data relay backup storage unit (1) generates a label sending sequence for a number of smart meters (100) in a network group using a random number generation algorithm; Step 22, the data relay backup storage unit (1) makes a parameter communication request based on the generated label sequence; Step 23, the corresponding numbered smart meter (100) that receives the parameter communication request packages the parameter backup data packet based on the current timestamp, and sends the parameter backup data packet to the data relay backup storage unit (1); Step 24, the data relay backup storage unit (1) stores the parameter backup data packets in sequence; In step 2, the parameter backup data packet transmission time of each smart meter (100) does not exceed 3 seconds, and the backup window period time span of the plurality of smart meters (100) in the network group is three times the number of the smart meters (100) in the network group. If the backup operation of the plurality of smart meters (100) in the network group is not completed within the backup window period, the data relay backup storage unit (1) sends an interactive network abnormality signal to the remote central control server (102); In step 23, a network sniffing module (2) is used to monitor the data flow of a process in which a plurality of smart meters (100) send parameter backup data packets to a data relay backup storage unit (1) in a sequence of numbered transmissions; If the network sniffing module (2) analyzes whether there is abnormality and malicious data in the data stream, if so, an alarm signal is exchanged with the relay backup storage unit (1), and the relay backup storage unit (1) stops communicating with the smart meter (100), and at the same time exchanges abnormal monitoring data of the network sniffing module (2) with the remote central control server (102); In step 4, if the new operating parameters are completely new, the staff uses the handheld smart terminal (101) to directly establish communication with the corresponding smart meter (100), and completes the setting of the new operating parameters after transmitting the new operating parameters to the smart meter (100) through the handheld smart terminal (101); The smart meter (100) that has completed the new operating parameter setting packages the new operating parameters based on the sending timestamp to form a parameter backup data packet, sends a new parameter backup request to the data relay backup storage unit (1) during the non-backup window period, and sends the parameter backup data packet to the data relay backup storage unit (1) via a wireless network for backup; If the data relay backup storage unit (1) receives a parameter backup data packet during a non-backup window period, it will perform a new operation parameter classification operation on the parameter backup data packet after parsing it.

2. A backup system for operating parameters of a smart meter, characterized in that: A method for backing up operating parameters of a smart meter as claimed in claim 1, the backup system comprising a plurality of relay backup storage units (1), a plurality of network sniffing modules (2) and a handheld smart terminal (101), wherein the relay backup storage unit (1) is arranged in a physical middle area of ​​a network group consisting of a plurality of smart meters (100), and the plurality of smart meters (100) in the network group are respectively connected to the relay backup storage unit (1) through the network sniffing module (2), the relay backup storage unit (1) is connected to a remote central control server (102), and the handheld smart terminal (101) is connected to the relay backup storage unit (1) and the network sniffing module (2) in the network group through wireless communication based on a wireless network.

3. The backup system of the operating parameters of a smart meter according to claim 2, characterized in that: The relay backup storage unit (1) comprises a backup storage (111), a data analysis chip (112) and a wireless communication module (114); the backup storage (111) is wirelessly connected to a plurality of smart meters (100) in a network group through the wireless communication module (114); the network sniffing module (2) is communicatively connected to the wireless communication module (114) to monitor the data flow input and output of the backup storage (111); and the data analysis chip (112) is communicatively connected to the backup storage (111).

4. The backup system for operating parameters of a smart meter according to claim 3, characterized in that: The relay backup storage unit (1) further comprises a control chip (113) and an electric control switch (115); the control chip (113) is communicatively connected to the network sniffing module (2); the electric control switch (115) is used to control the switch of the wireless communication module (114); the control chip (113) controls the electric control switch (115) to disconnect the communication of the wireless communication module (114) based on an alarm signal from the network sniffing module (2).

5. The backup system for operating parameters of a smart meter according to claim 4, characterized in that: The wireless communication module (114) is based on 4G or 5G wireless communication technology.

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