CN104319874A - On-line monitoring system and method for status of power transmission line of intelligent power grid - Google Patents
On-line monitoring system and method for status of power transmission line of intelligent power grid Download PDFInfo
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Abstract
The invention discloses an on-line monitoring system and method for the status of a power transmission line of an intelligent power grid, and relates to the field of intelligent power grids. A master control chip is used for the encoding and compression of parameter information. The processed effective parameter information is transmitted to a data gateway in a mode of IP package through the calling of a data communication module and a security encryption module. The data gateway employs an optical transceiver to transmit the processed effective parameter information of a pole tower to a monitoring center, thereby achieving the landing of the processed effective parameter information. The monitoring center achieves the analysis of the processed effective parameter information, and inspects the on-site condition of all monitored points. Maintainers and monitors carry out analysis and comparison through video and image data transmitted from a site, thereby guaranteeing the safe operation of a high-voltage line. Through the employing of a wireless 3G module and a 2.4G radio frequency module, the safety hidden troubles that a line is liable to be attacked or tampered illegally are avoided. The safety of data is guaranteed through the employing of a plurality of safety mechanisms and national secrete algorithms, and the data is safely transmitted to a data center.
Description
Technical field
The present invention relates to intelligent grid field, particularly relate to a kind of smart power grid power transmission line state on_line monitoring system and monitoring method thereof.
Background technology
Along with developing rapidly of power construction, the continuous expansion of electrical network scale, the power grid construction under MODEL OVER COMPLEX TOPOGRAPHY and plant maintenance work also get more and more.Transmission line as electric power conveying tie has dispersed large, distance, be difficult to make an inspection tour and the feature such as maintenance, therefore carries out remote monitoring to transmission line body and surrounding enviroment and parameter and becomes a urgently job.The intellectuality of transmission of electricity link contributes to making full use of existing power network resources, increase substantially transmission line conveying capacity, reduce Transmission Cost, transmission line online monitoring system is the important component part of intelligent grid transmission of electricity link, realize state estimation, failure diagnosis, repair based on condition of component and Risk-warning, be realize transmission line status controlled, can control and in control, promote the important technical of normal operation lean level.
Power industry ultra-high-tension power transmission line, the distribution in wire formula of column foot majority in practical application, and a lot of geographical position is in meagrely-populated place, unmanned or few man on duty at ordinary times, line walking administrative staff just go to carry out plant maintenance work at a fixed time.Geographical environment residing for remote ultra-high-tension power transmission line, weather conditions are more severe, not only want the test of survive harsh weather, be exactly that a lot of lawless person occurs again and again to pilferage, breakoff phenomenons such as electric power facility, power cable, high voltage iron towers in addition, bring about great losses.But current existing monitoring system is all to be communicated by single communication mode RF or GPRS communication realizes the passback of data, can not stablize the situation of passback in the data that occur very easily going wrong under extreme weather conditions, that causes equipment is out of control.The simple cumulative sum verification of many employings is carried out verifying or adopt external general-purpose algorithm to realize in the data transmission simultaneously, easily by rogue attacks or distort, there is great potential safety hazard, eager needs are a set of can stablize real-time, safe and reliable transmission line status on-line monitoring system and monitoring method thereof.
Summary of the invention
The invention provides a kind of smart power grid power transmission line state on_line monitoring system and monitoring method thereof, the stable transfer of the present invention by adopting the mode of wireless 3G module and the dual guarantee of 2.4G radio-frequency module to realize data, the PKI of employing mechanism and the close algorithm of state ensure the fail safe of data more in the data transmission simultaneously, solve easily by rogue attacks or the potential safety hazard of distorting on circuit, described below:
A kind of smart power grid power transmission line state on_line monitoring system, comprise: main control chip, monitoring system also comprises: data acquisition module, power supply module, data communication module, Security Encryption module, data information memory module, state detection module, data gateway and Surveillance center
Described power supply module is described main control chip, described data acquisition module, described data communication module, described Security Encryption module, described data information memory module and described state detection module provide power supply;
Described data acquisition module, described data communication module, described Security Encryption module, described data information memory module and described state detection module are electrically connected described main control chip respectively;
Described data acquisition module real-time data collection, the data gathered comprise icing, meteorology, image, conductor temperature, wire aeolian vibration, wave or the parameter information of anti-outside destroy, and the parameter information collected is transferred to described main control chip by described data acquisition module;
Described main control chip is encoded to described parameter information and is compressed, by calling described data communication module and described Security Encryption module, actual parameter information after process is sent to described data gateway in the mode that IP wraps, described data gateway adopts optical transmitter and receiver by actual parameter information transmission after the process on shaft tower to described Surveillance center, and after realizing process, actual parameter information lands;
Described state monitoring module is used for the running status detecting described main control chip, described data acquisition module, described power supply module, described data communication module, described Security Encryption module, described data information memory module in real time;
Described Surveillance center is by resolving actual parameter information after process, and displaying live view observes the field condition of each control point, safeguards that monitor staff is analysed and compared by the video that sends from scene, image data, guarantees the safe operation of high-tension line.
Described Security Encryption module is for generation of random key, and the functional realiey of SM1, SM2 and SM3 cryptographic algorithm and the storage of certificate, complete authentication and encryption and decryption.
Described data communication module adopts wireless 3G module and 2.4G radio-frequency module double design.
Described wireless 3G module is EM770W.
Described 2.4G radio-frequency module is ZM2410.
A kind of smart power grid power transmission line state on_line monitoring method, said method comprising the steps of:
(1) main control chip reads the digital certificate and private key information that store in Security Encryption module by USB interface;
(2) Security Encryption module built-in encryption algorithm, uses private key, carries out encrypted signature to user login information;
(3) according to PKCS#7 standard, by the ciphertext after original text, signature and the digital certificate of oneself packing;
(4) main control chip sends to data gateway by data communication module message of data being packed;
(5) data gateway receives message, reads package information according to PKCS#7 form;
(6) term of validity, the certificate chain of digital certificate that provide of data gateway checking main control chip, and complete blacklist inspection, failed then abandon;
(7), after the term of validity, certificate chain and blacklist are verified, namely data gateway uses the PKI of the digital certificate of main control chip to be decrypted the ciphertext that user provides;
(8) message after deciphering and original text are checked, identical, show the identity that the digital certificate accepting to be submitted to by main control chip is declared;
(9) obtain the encryption and decryption key of both sides' " one-time pad " transfer of data after decrypted message, complete the safe transmission of data message.
The beneficial effect of technical scheme provided by the invention is: the stable transfer of the present invention by adopting the mode of wireless 3G module and the dual guarantee of 2.4G radio-frequency module to realize data, the PKI of employing mechanism and the close algorithm of state ensure the fail safe of data more in the data transmission simultaneously, solve on circuit easily by rogue attacks or the potential safety hazard of distorting.Adopt the close algorithm of multiple safe mechanism and state to ensure the fail safe of data, under the protection of SM2 public key algorithm, data security is passed back to data center.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of smart power grid power transmission line state on_line monitoring system;
Fig. 2 is a kind of flow chart of smart power grid power transmission line state on_line monitoring method.
In accompanying drawing, the list of parts representated by each label is as follows:
1: main control chip; 2: data acquisition module;
3: power supply module; 4: data communication module;
5: Security Encryption module; 6: data information memory module;
7: state detection module; 8: data gateway;
9: Surveillance center.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below embodiment of the present invention is described further in detail.
Embodiment 1
In order to avoid the data that go wrong under extreme weather conditions can not stablize the situation of passback, embodiments provide a kind of smart power grid power transmission line state on_line monitoring system, see Fig. 1, this smart power grid power transmission line state on_line monitoring system comprises: main control chip 1, data acquisition module 2, power supply module 3, data communication module 4, Security Encryption module 5, data information memory module 6, state detection module 7, data gateway 8 and Surveillance center 9
Power supply module 3 is main control chip 1, data acquisition module 2, data communication module 4, Security Encryption module 5 and data information memory module 6 and state detection module 7 provide power supply; Data acquisition module 2, data communication module 4, Security Encryption module 5, data information memory module 6 and state detection module 7 are electrically connected main control chip 1 respectively.
Data acquisition module 2 real-time data collection, the data gathered comprise icing, meteorology, image (video), conductor temperature, wire aeolian vibration, wave or the parameter information such as anti-outside destroy, and the parameter information collected is transferred to main control chip 1 by data acquisition module 2.
Main control chip 1 pair of parameter information is encoded and compresses, by calling data communication module 4 and Security Encryption module 5, actual parameter information after process is sent to outside data gateway 8 in the mode that IP wraps, complete and possess the safety data transmission between the data gateway 8 on intelligent acess condition shaft tower, data gateway 8 adopts optical transmitter and receiver by actual parameter information transmission after the process on shaft tower to Surveillance center 9, and after realizing process, actual parameter information lands.
State monitoring module 7, for detecting the running status of main control chip 1, data acquisition module 2, power supply module 3, data communication module 4, Security Encryption module 5, data information memory module 6 in real time, guarantees system worked well.
Surveillance center 9 is by resolving actual parameter information after process, displaying live view observes the field condition of each control point, safeguard monitor staff by the video that sends from scene, picture, etc. data analysis comparison, as there is abnormal early warning information, namely corresponding emergency processing is made at once, to guarantee the safe operation of high-tension line.
Wherein, Security Encryption module 5 is through the certification of national Password Management office and model examination & approval, and the cryptographic algorithm of employing has SM1, SM2, SM3 and SM4 cryptographic algorithm.In the present invention, Security Encryption module 5 is for generation of random key, and the functional realiey of SM1, SM2 and SM3 cryptographic algorithm and the storage etc. of certificate, complete the function such as authentication and encryption and decryption.
Wherein, data communication module 4 adopts professional wireless 3G module and 2.4G radio-frequency module double design, EVDO link is used to communicate there being the place of 3G signal, there is no the place of 3G signal, equipment can drop to 2.5G automatically, uses EDGE link transmission, if EDGE signal can't cover, automatically drop to 2G, use CDMA1X (or GPRS) link to transmit.If when existing carrier network lost efficacy, 2.4G module can be adopted to complete MANET, by stable for data-signal passback.
Wireless 3G module in the embodiment of the present invention is preferably EM770W.3G series Wireless data transmission terminal equipment (DTU), provides all-transparent data channel, can realize communication mode that is long-range, wireless, networking easily.Equipment is allowed easily to realize the wireless connections with Internet.3G series DTU has the plurality of advantages such as network coverage wide (mobile network's coverage can use the place of mobile phone just can use), networking flexibility quick (install and can use), operating cost low (charging by flow).
The model of the 2.4G radio-frequency module in the embodiment of the present invention is ZM2410, is the ZigBee module of 2.4GHz, embedded serial ports transparent transmission (some multiple spot and point-to-multipoint) communications protocol, supports aerial upgrade firmware or configuration far module information.The radio circuit of the complexity of radio communication product is integrated on the plank of a piece slight, the communications protocol of radio communication product complexity is realized by simple chip controls.
Embodiment 2
In order to solve on circuit easily by rogue attacks or the potential safety hazard of distorting, embodiments provide a kind of smart power grid power transmission line state on_line monitoring method, see Fig. 2, described below:
This smart power grid power transmission line state on_line monitoring system adopts number of mechanisms to ensure the safety of self, comprises PKI data transmission mechanism, bidirectional identity authentication, hardware data encryption and decryption, data security storage etc.
PKI data transmission mechanism refers to that monitoring system adopts based on digital certificate authentication mode, effectively ensures device security and data transmission security.Security Encryption module 4 in monitoring system stores digital certificate and private key for user, with private key, original text is encrypted in Security Encryption module 4, pack together with digital certificate with original text and pass through Internet Transmission, data network management restores digital certificate after receiving, utilize public key decryptions, result and original text verify, and determine user validation.And digital certificate store can ensure that in Security Encryption module 4 digital certificate cannot be replicated, all key computings realize in Security Encryption module 4, and key does not occur also not propagating in a network in device memory.The secure exchange of the key of " one-time pad " that transfer of data uses can be completed by public-key mechanism.
Bidirectional identity authentication refers to before monitoring equipment access network carries out transfer of data, needs to carry out two-way authentication with data gateway, guarantees that equipment is effectively legal.Each monitoring equipment has hardware encryption protection, only completes two-way authentication, just can login system, and equipment could normal work.Even if device losses or stolen, information and the intrasystem data of equipment also can not be stolen by non-legally, ensure the safety of system.
Hardware data encryption and decryption refers to by Security Encryption module 4, the various algorithms of data summarization, data encrypting and deciphering and the signature used in PKI system can be realized, encryption and decryption computing is carried out in Security Encryption module 4 inside, ensure that user key there will not be in calculator memory, thus stopped the possibility that user key intercepted by hacker.General support SM1, SM2, SM3 and SM4 algorithm.
Data security storage refers to that monitoring system has the secure data storage space of 8K-128K, the secret data such as digital certificate, user key can be stored, must be realized by program the read-write operation of this memory space, user cannot directly read, wherein private key for user can not be derived, and has stopped the possibility copying customer digital certificate or identity information.
Signature verification and cipher key change flow process as follows:
(1) main control chip 1 reads the digital certificate and private key information that store in Security Encryption module 4 by USB interface;
(2) Security Encryption module 4 built-in encryption algorithm, uses private key, carries out encrypted signature to user login information;
(3) according to PKCS#7 standard, by the ciphertext after original text, signature and the digital certificate of oneself packing;
(4) main control chip 1 sends to data gateway 8 by data communication module 4 message of data being packed.
(5) data gateway 8 receives message, reads package information according to PKCS#7 form;
(6) data gateway 8 verifies the term of validity, the certificate chain of the digital certificate that main control chip 1 provides, and completes blacklist inspection, failed then abandon;
(7), after the term of validity, certificate chain and blacklist are verified, namely data gateway 8 uses the PKI of the digital certificate of main control chip 1 to be decrypted the ciphertext that user provides;
(8) message after deciphering and original text are checked, identical, show the identity that the digital certificate accepting to be submitted to by main control chip 1 is declared;
(9) obtain the encryption and decryption key of both sides' " one-time pad " transfer of data after decrypted message, complete the safe transmission of data message.
The embodiment of the present invention is to the model of each device except doing specified otherwise, and the model of other devices does not limit, as long as can complete the device of above-mentioned functions.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a smart power grid power transmission line state on_line monitoring system, comprise: main control chip, it is characterized in that, monitoring system also comprises: data acquisition module, power supply module, data communication module, Security Encryption module, data information memory module, state detection module, data gateway and Surveillance center
Described power supply module is described main control chip, described data acquisition module, described data communication module, described Security Encryption module, described data information memory module and described state detection module provide power supply;
Described data acquisition module, described data communication module, described Security Encryption module, described data information memory module and described state detection module are electrically connected described main control chip respectively;
Described data acquisition module real-time data collection, the data gathered comprise icing, meteorology, image, conductor temperature, wire aeolian vibration, wave or the parameter information of anti-outside destroy, and the parameter information collected is transferred to described main control chip by described data acquisition module;
Described main control chip is encoded to described parameter information and is compressed, by calling described data communication module and described Security Encryption module, actual parameter information after process is sent to described data gateway in the mode that IP wraps, described data gateway adopts optical transmitter and receiver by actual parameter information transmission after the process on shaft tower to described Surveillance center, and after realizing process, actual parameter information lands;
Described state monitoring module is used for the running status detecting described main control chip, described data acquisition module, described power supply module, described data communication module, described Security Encryption module, described data information memory module in real time;
Described Surveillance center is by resolving actual parameter information after process, and displaying live view observes the field condition of each control point, safeguards that monitor staff is analysed and compared by the video that sends from scene, image data, guarantees the safe operation of high-tension line.
2. a kind of smart power grid power transmission line state on_line monitoring system according to claim 1, it is characterized in that, described Security Encryption module is for generation of random key, and the functional realiey of SM1, SM2 and SM3 cryptographic algorithm and the storage of certificate, complete authentication and encryption and decryption.
3. a kind of smart power grid power transmission line state on_line monitoring system according to claim 1, is characterized in that, described data communication module adopts wireless 3G module and 2.4G radio-frequency module double design.
4. a kind of smart power grid power transmission line state on_line monitoring system according to claim 1, is characterized in that, described wireless 3G module is EM770W.
5. a kind of smart power grid power transmission line state on_line monitoring system according to claim 1, it is characterized in that, described 2.4G radio-frequency module is ZM2410.
6. a smart power grid power transmission line state on_line monitoring method, is characterized in that, said method comprising the steps of:
(1) main control chip reads the digital certificate and private key information that store in Security Encryption module by USB interface;
(2) Security Encryption module built-in encryption algorithm, uses private key, carries out encrypted signature to user login information;
(3) according to PKCS#7 standard, by the ciphertext after original text, signature and the digital certificate of oneself packing;
(4) main control chip sends to data gateway by data communication module message of data being packed;
(5) data gateway receives message, reads package information according to PKCS#7 form;
(6) term of validity, the certificate chain of digital certificate that provide of data gateway checking main control chip, and complete blacklist inspection, failed then abandon;
(7), after the term of validity, certificate chain and blacklist are verified, namely data gateway uses the PKI of the digital certificate of main control chip to be decrypted the ciphertext that user provides;
(8) message after deciphering and original text are checked, identical, show the identity that the digital certificate accepting to be submitted to by main control chip is declared;
(9) obtain the encryption and decryption key of both sides' " one-time pad " transfer of data after decrypted message, complete the safe transmission of data message.
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| CN105699827A (en) * | 2016-04-26 | 2016-06-22 | 国网河南省电力公司电力科学研究院 | Intelligent power transmission line comprehensive monitoring and analysis and integrated operation and maintenance system |
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| CN112468490B (en) * | 2020-11-25 | 2023-09-08 | 国网辽宁省电力有限公司信息通信分公司 | Authentication method for access of power grid terminal layer equipment |
| CN112969154A (en) * | 2021-02-24 | 2021-06-15 | 珠海市鸿瑞信息技术股份有限公司 | 5G communication method for electric power distribution safety control |
| CN112969154B (en) * | 2021-02-24 | 2021-10-29 | 珠海市鸿瑞信息技术股份有限公司 | 5G communication method for electric power distribution safety control |
| CN113988513A (en) * | 2021-09-26 | 2022-01-28 | 国网浙江省电力有限公司台州供电公司 | Method and system for monitoring quality of foundation pile on line |
| CN113891184A (en) * | 2021-09-30 | 2022-01-04 | 深圳供电局有限公司 | 5G online monitoring system and method for power transmission line |
| WO2023197529A1 (en) * | 2022-04-11 | 2023-10-19 | 广东电网有限责任公司佛山供电局 | Online monitoring system, method and apparatus for power transmission line, and master station |
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