CN-121984722-A - Data transmission method and system applied to electric energy internet of things meter and expansion equipment

CN121984722ACN 121984722 ACN121984722 ACN 121984722ACN-121984722-A

Abstract

The invention discloses a data transmission method and a system applied to an electric energy internet of things meter and expansion equipment, which are applied to the technical field of data transmission, wherein the method comprises the steps of obtaining data; the method comprises the steps of analyzing the first protocol request data to obtain address data, operation data and request parameter data of the target electric energy Internet of things table, packaging the address data, the operation data and the request parameter data of the target expansion equipment based on a packaging protocol to obtain packaging data, encrypting the packaging data to obtain first protocol response data, and sending the first protocol response data of the target electric energy Internet of things table to the target expansion equipment based on a transmission protocol. The method provided by the invention can solve the technical problem that the key is easy to leak caused by the adoption of static encryption and centralized key management in the conventional electric energy internet of things meter.

Inventors

ZHANG JIARUI
CHEN CONG
LUO QING
CHEN YI
XU JINGWEN
LIU HONGWEI
CHENG YU
CAI YINUO
FENG TAO
WANG YANG

Assignees

国网浙江省电力有限公司杭州供电公司

Dates

Publication Date: 20260505
Application Date: 20260107

Claims (10)

1. The data transmission method applied to the electric energy internet of things meter and the expansion equipment is characterized by comprising the following steps of: Acquiring first protocol request data of a target electric energy internet of things meter; Analyzing the first protocol request data to obtain address data, operation data and request parameter data of the target electric energy internet of things meter; based on the encapsulation protocol, encapsulating the address data, the operation data and the request parameter data of the target extension equipment to obtain encapsulation data; The encryption processing is carried out on the encapsulated data to obtain first protocol response data, wherein the encryption process is configured to carry out dynamic time tag processing on the encapsulated data by utilizing a key expansion technology to obtain key set data; and based on a transmission protocol, transmitting first protocol response data of the target electric energy Internet of things meter to the target expansion equipment.
2. The data transmission method applied to the electric energy internet of things meter and the expansion device according to claim 1, wherein the analyzing the first protocol request data to obtain the address data, the operation data and the request parameter data of the target electric energy internet of things meter comprises: Carrying out communication frame integrity check processing on the first protocol request data to obtain load data; and analyzing the load data by utilizing a protocol frame structured analysis technology to obtain address data, operation data and request parameter data of the target electric energy internet of things table.
3. The data transmission method applied to the electric energy internet of things meter and the expansion device according to claim 1, wherein the encapsulating the address data, the operation data and the request parameter data of the target expansion device based on the encapsulation protocol to obtain encapsulated data comprises: performing field mapping processing on address data, operation data and request parameter data of the target extension equipment based on an encapsulation protocol to obtain message frame data; And carrying out frame head and frame tail addition processing on the message frame data to obtain the encapsulation data.
4. The data transmission method applied to the electric energy internet of things meter and the expansion device according to claim 1, wherein the performing dynamic time-stamping processing on the package data by using a key expansion technology to obtain key set data comprises: Carrying out hash feature extraction processing on the packaged data to obtain data features; And carrying out dynamic time tag processing on the data characteristics by using a key expansion technology to obtain key set data.
5. The data transmission method applied to the electric energy internet of things meter and the expansion device according to claim 1, wherein the performing the encryption transformation on the key set data to obtain the first protocol response data of the target electric energy internet of things meter comprises: performing encryption transformation processing on the key set data and the packaging data to obtain intermediate ciphertext data; And processing the intermediate ciphertext data by utilizing a data encoding technology to obtain first protocol response data of the target electric energy Internet of things meter.
6. A data transmission system for an electric energy internet of things meter and an expansion device, comprising: the acquisition module is used for acquiring first protocol request data of the target electric energy internet of things meter; the analysis module is used for analyzing the first protocol request data to obtain address data, operation data and request parameter data of the target expansion equipment; the packaging module is used for packaging the address data, the operation data and the request parameter data of the target expansion equipment based on a packaging protocol to obtain packaging data; the encryption module is used for carrying out encryption processing on the encapsulated data to obtain first protocol response data, wherein the encryption process is configured to carry out dynamic time tag processing on the encapsulated data by utilizing a key expansion technology to obtain key set data; And the transmission module is used for transmitting the first protocol response data of the target electric energy Internet of things meter to the target expansion equipment based on a transmission protocol.
7. The data transmission system applied to the electric energy internet of things meter and the expansion device according to claim 6, wherein the analyzing the first protocol request data to obtain the address data, the operation data and the request parameter data of the target electric energy internet of things meter comprises: Carrying out communication frame integrity check processing on the first protocol request data to obtain load data; and analyzing the load data by utilizing a protocol frame structured analysis technology to obtain address data, operation data and request parameter data of the target electric energy internet of things table.
8. The data transmission system applied to the electric energy internet of things meter and the expansion device according to claim 6, wherein the encapsulating the address data, the operation data and the request parameter data of the target expansion device based on the encapsulation protocol to obtain encapsulated data comprises: performing field mapping processing on address data, operation data and request parameter data of the target extension equipment based on an encapsulation protocol to obtain message frame data; And carrying out frame head and frame tail addition processing on the message frame data to obtain the encapsulation data.
9. The data transmission system applied to the electric energy internet of things meter and the expansion device according to claim 6, wherein the dynamic time-stamping processing is performed on the encapsulated data by using a key expansion technology to obtain key set data, and the method comprises the following steps: Carrying out hash feature extraction processing on the packaged data to obtain data features; And carrying out dynamic time tag processing on the data characteristics by using a key expansion technology to obtain key set data.
10. The data transmission system applied to the electric energy internet of things meter and the expansion device according to claim 6, wherein the performing the encryption transformation on the key set data to obtain the first protocol response data of the target electric energy internet of things meter comprises: performing encryption transformation processing on the key set data and the packaging data to obtain intermediate ciphertext data; And processing the intermediate ciphertext data by utilizing a data encoding technology to obtain first protocol response data of the target electric energy Internet of things meter.

Description

Data transmission method and system applied to electric energy internet of things meter and expansion equipment Technical Field The invention relates to the technical field of data transmission, in particular to a data transmission method and a data transmission system applied to an electric energy internet of things meter and expansion equipment. Background Under the background that a large number of photovoltaic devices are installed at home, the high-frequency electricity utilization data collected by the intelligent ammeter can accurately reflect sensitive information of the home. In the prior art, data transmission of an electric energy internet of things meter and expansion equipment generally adopts a static encryption method, and in particular, static keys of a large number of electric meter equipment are generally stored in a server or a key management system of a data center in a centralized manner, and when the equipment needs identity authentication or data encryption and decryption, the equipment needs to interact with the central server. However, the static key management mode is difficult to deal with complex network attacks, once a central server is broken, a large-scale key leakage risk is easily caused, and if the key is leaked, a large number of devices can face the threat of being illegally controlled, so that the static key management mode can be used for forging power generation/power consumption data, disturbing power grid dispatching and threatening the stable operation of a power grid. Disclosure of Invention The invention provides a data transmission method and a data transmission system applied to an electric energy internet of things meter and expansion equipment, which are used for solving the technical problem that keys are easy to leak caused by the adoption of static encryption and centralized key management in the traditional electric energy internet of things meter, avoiding single-point fault risks of centralized management of static keys, reducing the possibility of large-scale key leakage, effectively preventing equipment from being illegally controlled and power generation electricity data from being forged, and guaranteeing the stability of power grid dispatching and confidentiality of household electricity sensitive information. In order to solve the technical problems, the invention provides a data transmission method applied to an electric energy internet of things meter and expansion equipment, which comprises the following steps: Acquiring first protocol request data of a target electric energy internet of things meter; Analyzing the first protocol request data to obtain address data, operation data and request parameter data of the target electric energy internet of things meter; based on the encapsulation protocol, encapsulating the address data, the operation data and the request parameter data of the target extension equipment to obtain encapsulation data; The encryption processing is carried out on the encapsulated data to obtain first protocol response data, wherein the encryption process is configured to carry out dynamic time tag processing on the encapsulated data by utilizing a key expansion technology to obtain key set data; and based on a transmission protocol, transmitting first protocol response data of the target electric energy Internet of things meter to the target expansion equipment. As one preferable solution, the analyzing the first protocol request data to obtain address data, operation data and request parameter data of the target electric energy internet of things meter includes: Carrying out communication frame integrity check processing on the first protocol request data to obtain load data; and analyzing the load data by utilizing a protocol frame structured analysis technology to obtain address data, operation data and request parameter data of the target electric energy internet of things table. As one preferable solution, the encapsulating, based on an encapsulation protocol, encapsulates address data, operation data and request parameter data of the target extension device to obtain encapsulated data, including: performing field mapping processing on address data, operation data and request parameter data of the target extension equipment based on an encapsulation protocol to obtain message frame data; And carrying out frame head and frame tail addition processing on the message frame data to obtain the encapsulation data. As one preferable solution, the performing dynamic time stamp processing on the package data by using a key expansion technology to obtain key set data includes: Carrying out hash feature extraction processing on the packaged data to obtain data features; And carrying out dynamic time tag processing on the data characteristics by using a key expansion technology to obtain key set data. As one preferable solution, the performing encryption transformation on the key set data to obtain first protocol response data of