CN112543193A - Remote transmission method for synchronous acquisition of action message data of relay protection device - Google Patents
Remote transmission method for synchronous acquisition of action message data of relay protection device Download PDFInfo
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- CN112543193A CN112543193A CN202011394673.1A CN202011394673A CN112543193A CN 112543193 A CN112543193 A CN 112543193A CN 202011394673 A CN202011394673 A CN 202011394673A CN 112543193 A CN112543193 A CN 112543193A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0464—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload using hop-by-hop encryption, i.e. wherein an intermediate entity decrypts the information and re-encrypts it before forwarding it
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to the technical field of data transmission methods of relay protection devices, in particular to a remote transmission method for synchronously acquiring action message data of a relay protection device. The method comprises the following steps: s1: collecting operation data of a power system and elements thereof and action message data of a relay protection device; s2: the first encryption module encrypts the operation data for the first time and transmits the operation data to the data summarizing device, and the action message data are directly transmitted to the data summarizing device; s3: the data summarization device receives the action message data and the operation data and decrypts the operation data for the first time; s4: the second encryption module encrypts the action message data and the operation data decrypted for the first time for the second time and transmits the action message data and the operation data decrypted for the first time to the trusteeship area block chain; s5: and the analysis platform decrypts for the second time after acquiring the data in the trusteeship area block chain, and acquires action message data and operation data. The data transmission method can encrypt the data in the data transmission process, and ensure the safety of the data in the transmission process.
Description
Technical Field
The invention relates to the technical field of data transmission methods of relay protection devices, in particular to a remote transmission method for synchronously acquiring action message data of a relay protection device.
Background
At present, a relay protection device in a transformer substation can send a warning signal to an operation attendant in time when a power element in a power system or the power system itself has a fault and endangers the safe operation of the power system, or directly send a trip command to a controlled circuit breaker to terminate the development of the events. The message data of the relay protection device is related to the operation safety of the whole power grid and is of great importance to the monitoring of the message of the relay protection device. Data of the relay protection device are collected and remotely transmitted to the terminal analysis device, and the data security is very important. In the prior art, action message data of a relay protection device is not encrypted when being transmitted, so that information leakage is easily caused or information is falsified by lawbreakers in the transmission process, and the operation safety of a power grid is seriously influenced.
Chinese patent CN108648434A discloses a relay protection action information remote transmission system and method, which can remotely transmit action message data of a relay protection device, but do not perform special security work on the data during the data transmission process, which is easy to cause information security hidden trouble.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the remote transmission method for synchronously acquiring the action message data of the relay protection device, which can encrypt the data in the data transmission process, and can ensure the safety of the data in the transmission process.
In order to solve the technical problems, the invention adopts the technical scheme that:
the method for synchronously acquiring and remotely transmitting the action message data of the relay protection device comprises the following steps:
s1: the operation data acquisition module acquires operation data of the power system and elements thereof; the message data acquisition module acquires action message data of the relay protection device;
s2: the first encryption module encrypts the operation data of the power system and the elements of the power system for the first time and then transmits the operation data to the data summarizing device, and the action message data are directly transmitted to the data summarizing device;
s3: the data summarization device receives the action message data and the operation data of the power system and the elements thereof, and decrypts the operation data of the power system and the elements thereof for the first time;
s4: the second encryption module packs the action message data and the operation data of the power system and the elements thereof decrypted for the first time, then encrypts the action message data for the second time and transmits the action message data and the operation data to the pipe supporting area block chain;
s5: and the analysis platform decrypts for the second time after acquiring the data in the hosting area block chain, and then obtains the action message data and the operation data of the power system and the elements thereof.
The operation data of the power system and the elements thereof are transmitted from the operation data acquisition module to the final analysis platform, the encryption and decryption processes are carried out twice in the whole transmission process, namely, the operation data are transmitted from the operation data acquisition module to the data summarizing device for the first encryption, the operation data are transmitted from the data summarizing device to the hosting area block chain for the second encryption, and the analysis platform acquires the data in the hosting area block chain and then decrypts the data to acquire the data. The encryption processing is carried out in the whole data transmission process, so that the data can be prevented from being lost and maliciously tampered in the transmission process, the safety of data transmission is ensured, and the safety of power grid operation is improved.
Further, the step S3 includes the data summarization device determining the received operation message data, deleting the operation data of the power system and its elements after the first decryption if the operation message data is empty, returning to the step S1, and entering the step S4 if the operation message data is not empty.
Further, the operation data of the power system and the elements thereof comprise temperature data, humidity data, voltage data and current data.
Further, the step S2 includes encrypting ID numbers of the power system and its components, and transmitting the encrypted ID numbers to the data summarizing device; in step S3, the data summarization device receives the operation data of the power system and its components and decrypts the ID numbers of the power system and its components after the first decryption, and then verifies the identities of the power system and its components according to the ID numbers of the power system and its components.
Further, in step S3, the data summarization device identifies identities of the power system and its components, and deletes the operation data of the power system and its components if the ID numbers of the power system and its components are not in the mapping table of the data summarization device; if the ID numbers of the power system and the elements thereof are in the mapping table of the data summarizing device, the operation data of the power system and the elements thereof are reserved.
Further, the step S4 includes encrypting the ID number of the data summarization device and transmitting the encrypted ID number to the hosted block chain; in step S5, the analysis platform obtains the data in the hosted block chain, decrypts the ID number of the data summarization device after the second decryption, and then verifies the identity of the data summarization device according to the ID number of the data summarization device.
Further, in step S5, the analysis platform identifies the identity of the data summarization device, and if the ID number of the data summarization device is not in the mapping table of the analysis platform, deletes the action message data corresponding to the data summarization device and the operation data of the power system and its components; and if the ID number of the data summarizing device is in the mapping table of the analysis platform, analyzing and judging the action message data corresponding to the data summarizing device and the operation data of the power system and the elements thereof.
Further, in the step S2, a first encryption is performed by using the public key of the data summarization device; in step S3, a first decryption is performed using the private key of the data summarization device.
Further, in the step S5, the private key of the analysis platform is used for the second encryption, and in the step S6, the public key of the analysis platform is used for the second decryption.
Further, the first encryption and/or the second encryption are/is performed on data by adopting an asymmetric encryption algorithm, and the asymmetric encryption algorithm is an RSA public key cryptosystem algorithm.
Compared with the prior art, the invention has the beneficial effects that:
the data are encrypted in two information transmissions, the encryption process is based on a public key and a private key, the privacy is high, the safety is good, the operation speed is high, and the information can be quickly encrypted.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a method for synchronously acquiring and remotely transmitting action message data of a relay protection device according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment 2 of a method for synchronously acquiring and remotely transmitting action message data of a relay protection device according to the present invention;
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example 1
Fig. 1 shows a first embodiment of a method for synchronously acquiring and remotely transmitting action message data of a relay protection device according to the present invention, which includes the following steps:
s1, acquiring the operation data of the power system and the elements thereof by the operation data acquisition module; the message data acquisition module acquires action message data of the relay protection device;
the operating data of the power system and its components includes temperature data, humidity data, voltage data, current data.
S2: the first encryption module encrypts the operation data of the power system and the elements of the power system for the first time and then transmits the operation data to the data summarizing device, and the action message data are directly transmitted to the data summarizing device;
s21: the first encryption module encrypts ID numbers of the power system and elements thereof and transmits the encrypted ID numbers to the data summarizing device;
the first encryption can be performed by using a public key of the data summarizing device;
s3: the data summarization device receives the action message data and the operation data of the power system and the elements thereof, and decrypts the operation data of the power system and the elements thereof for the first time;
wherein the first decryption utilizes the private key of the data summarization device to perform decryption processing.
S31: the data summarization device receives the operation data of the power system and the elements thereof, decrypts the ID numbers of the power system and the elements thereof after the first decryption, and then verifies the identities of the power system and the elements thereof according to the ID numbers of the power system and the elements thereof.
The data summarization device identifies the identities of the power system and the elements thereof, and deletes the operation data of the power system and the elements thereof if the ID numbers of the power system and the elements thereof are not in the mapping table of the data summarization device; if the ID numbers of the power system and the elements thereof are in the mapping table of the data summarizing device, the operation data of the power system and the elements thereof are reserved.
S32: and the data summarizing device judges the received action message data, if the action message data are null, deletes the operation data of the power system and the elements thereof after the first decryption and returns to the step S1, and if the action message data are not null, the next step is carried out.
S4: the second encryption module packs the action message data and the operation data of the power system and the elements thereof decrypted for the first time, then encrypts the action message data for the second time and transmits the action message data and the operation data to the pipe supporting area block chain;
s41: the second encryption module encrypts the ID number of the data summarizing device and transmits the encrypted ID number to the trusteeship area block chain;
and the second encryption is encrypted by using a private key of the analysis platform.
S5: and the analysis platform decrypts for the second time after acquiring the data in the hosting area block chain, and then obtains the action message data and the operation data of the power system and the elements thereof.
And the second decryption is performed by using the public key of the analysis platform.
The analysis platform acquires data in the trusteeship zone block chain, decrypts the ID number of the data summarizing device after second decryption, and then verifies the identity of the data summarizing device according to the ID number of the data summarizing device; if the ID number of the data summarizing device is not in the mapping table of the analysis platform, deleting the action message data corresponding to the data summarizing device and the operation data of the power system and the elements thereof; and if the ID number of the data summarizing device is in the mapping table of the analysis platform, analyzing and judging the action message data corresponding to the data summarizing device and the operation data of the power system and the elements thereof.
Preferably, the first encryption and/or the second encryption uses an asymmetric encryption algorithm to encrypt the data, and the asymmetric encryption algorithm is preferably an RSA public key cryptosystem algorithm.
Example 2
Fig. 2 shows a second embodiment of a method for synchronously acquiring and remotely transmitting action message data of a relay protection device according to the present invention, which is similar to embodiment 1, and is different in that the positions of step S31 and step S32 are interchanged, the data summarization device first determines the received action message data, deletes the operation data of the power system and its components after the first decryption if the action message data is null, and returns to step S1, receives the ID numbers of the power system and its components through the data summarization device for decryption if the action message data is not null, then verifies the identities of the power system and its components according to the ID numbers of the power system and its components, and deletes the operation data of the power system and its components if the ID numbers of the power system and its components are not in the mapping table of the data summarization device; if the ID numbers of the power system and the elements thereof are in the mapping table of the data summarizing device, the operation data of the power system and the elements thereof are reserved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A relay protection device action message data synchronous acquisition remote transmission method is characterized by comprising the following steps:
s1: the operation data acquisition module acquires operation data of the power system and elements thereof; the message data acquisition module acquires action message data of the relay protection device;
s2: the first encryption module encrypts the operation data of the power system and the elements of the power system for the first time and then transmits the operation data to the data summarizing device, and the action message data are directly transmitted to the data summarizing device;
s3: the data summarization device receives the action message data and the operation data of the power system and the elements thereof, and decrypts the operation data of the power system and the elements thereof for the first time;
s4: the second encryption module packs the action message data and the operation data of the power system and the elements thereof decrypted for the first time, then encrypts the action message data for the second time and transmits the action message data and the operation data to the pipe supporting area block chain;
s5: and the analysis platform decrypts for the second time after acquiring the data in the hosting area block chain, and then obtains the action message data and the operation data of the power system and the elements thereof.
2. The method of claim 1, wherein the step S3 further includes the step of determining the received operation message data by a data summarization device, and if the operation message data is null, deleting the operation data of the power system and its components after the first decryption and returning to the step S1, and if the operation message data is not null, entering the step S4.
3. The relay protection device action message data synchronous acquisition remote transmission method according to claim 2, wherein the operation data of the power system and the components thereof comprises temperature data, humidity data, voltage data and current data.
4. The relay protection device action message data synchronous acquisition remote transmission method according to claim 3, wherein the step S2 further comprises encrypting ID numbers of the power system and its components and transmitting the encrypted ID numbers to the data summarization device; in step S3, the data summarization device receives the operation data of the power system and its components and decrypts the ID numbers of the power system and its components after the first decryption, and then verifies the identities of the power system and its components according to the ID numbers of the power system and its components.
5. The relay protection device action message data synchronous acquisition remote transmission method according to claim 4, wherein in step S3, the data summarization device identifies identities of the power system and its components, and deletes the operation data of the power system and its components if the ID numbers of the power system and its components are not in the mapping table of the data summarization device; if the ID numbers of the power system and the elements thereof are in the mapping table of the data summarizing device, the operation data of the power system and the elements thereof are reserved.
6. The method for synchronously acquiring and remotely transmitting the action message data of the relay protection device according to any one of claims 1 to 5, wherein the step S4 further comprises encrypting the ID number of the data summarizing device and transmitting the encrypted ID number to the hosted area block chain; in step S5, the analysis platform obtains the data in the hosted block chain, decrypts the ID number of the data summarization device after the second decryption, and then verifies the identity of the data summarization device according to the ID number of the data summarization device.
7. The relay protection device action message data synchronous acquisition remote transmission method according to claim 6, wherein the analysis platform identifies the identity of the data summarization device in step S5, and if the ID number of the data summarization device is not in the mapping table of the analysis platform, the action message data corresponding to the data summarization device and the operation data of the power system and its components are deleted; and if the ID number of the data summarizing device is in the mapping table of the analysis platform, analyzing and judging the action message data corresponding to the data summarizing device and the operation data of the power system and the elements thereof.
8. The relay protection device action message data synchronous acquisition remote transmission method according to claim 7, wherein in step S2, a public key of a data summarizing device is used for first encryption; in step S3, a first decryption is performed using the private key of the data summarization device.
9. The method for synchronously acquiring and remotely transmitting the action message data of the relay protection device according to claim 8, wherein the second encryption is performed by using a private key of the analysis platform in the step S5, and the second decryption is performed by using a public key of the analysis platform in the step S6.
10. The relay protection device action message data synchronous acquisition remote transmission method according to claim 9, wherein the first encryption and/or the second encryption both encrypt data using an asymmetric encryption algorithm, the asymmetric encryption algorithm being an RSA public key cryptosystem algorithm.
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2020
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| US20100087959A1 (en) * | 2008-01-30 | 2010-04-08 | Williams Jr Olin A | Dynamic real-time power system monitoring |
| WO2014090025A1 (en) * | 2012-12-11 | 2014-06-19 | 国网上海市电力公司 | On-line and off-line integrated analysis and testing method for smart substation |
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