CN108924116A - Electric energy quality monitoring inquiry system - Google Patents
Electric energy quality monitoring inquiry system Download PDFInfo
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- CN108924116A CN108924116A CN201810668083.XA CN201810668083A CN108924116A CN 108924116 A CN108924116 A CN 108924116A CN 201810668083 A CN201810668083 A CN 201810668083A CN 108924116 A CN108924116 A CN 108924116A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 11
- 230000003993 interaction Effects 0.000 claims description 9
- 238000011897 real-time detection Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 8
- 238000012790 confirmation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000010248 power generation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Classifications
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- 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
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
-
- 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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
- H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of electric energy quality monitoring inquiry systems, including data monitoring node etc.；The present invention takes into account the safety at both inquiry end and electric energy quality monitoring center, in the extensive dynamic expansion of data, not because encryption and decryption lead to system Caton.Data monitoring node can accurately obtain the correct time that network signal reaches a certain node in network, there is preferable fault-tolerance to the loss situation of the ether frame signal from unlike signal received, it improves and effectively improves the real-time to distributed generation resource electric energy quality monitoring, it can guarantee the data acquisition in a degree of extreme weather, transmission, save, improve power supply reliability.
Description
Technical field
The invention belongs to power equipment monitoring technical fields.Method, system is inquired more particularly to a kind of electric energy quality monitoring.
Background technique
Distributed generation resource is as a kind of energy-saving and environment-friendly novel power generation device, but there are many distributed generation resource grid entry point, and
And it is most of be distributed in the severe remote districts of weather conditions, position distribution is also more complicated, gives data monitoring especially signal
Transmission and safety bring very big difficulty.
Summary of the invention
The purpose of the invention is to overcome above-mentioned deficiency to provide a kind of electric energy quality monitoring inquiry system.
A kind of electric energy quality monitoring inquiry system, including following part：Data monitoring node, it is distributed for real-time detection
The power quality data index of power supply, and the power quality data index that will test is transferred to unloading node；Unloading node is used
It received, stored and is uploaded in the power quality data index to distributed generation resource；Electric energy quality monitoring center, for connecing
It receives and handles the power quality data index of distributed generation resource and all distributed generation resource power qualities in monitoring network segment are referred to
Target concentrates supervision and management；Laptop, for realizing all distributed generation resource power qualities in remote inquiry monitoring network segment
State, it is characterised in that communication interaction is carried out by ethernet netting twine between the data monitoring node and unloading node, it is described
Communication interaction, the electric energy quality monitoring center and pen are carried out by 4G network between unloading node and electric energy quality monitoring center
Remember that this computer carries out communication interaction by internet.
Further, the inquiry system further includes：
Identifying code generation module is sent to work for the historical data of each distributed generation resource to be generated Message Authentication Code
The laptop of personnel；
Rights encryption module receives Message Authentication Code for staff, and will return after the encryption of the search access right of acquisition
To electric energy quality monitoring center；
The plaintext met in search access right is encrypted and is passed for the search access right according to staff by plaintext encrypting module
It is defeated by the laptop of staff；
Plain text authentication module, for calculating required plaintext mi, and verify mi, wherein i is the historical data that staff needs
Call number, miFor i-th historical data of electric energy quality monitoring center storage.
Further, the upper outer access at the electric energy quality monitoring center has storage medium, and the is arranged in the storage medium
The second security module is arranged on the hard disk in the host at the electric energy quality monitoring center, for accessing first in one security module
Security module；The electric energy quality monitoring center further includes judgment module, for judging the ground of Message Authentication Code data to be written
Whether location is in the first security module, if the address of data to be written, in the first security module, the second security module is read
One key of origination message identifying code data and generation that SRAM fixing address section generates in the host at electric energy quality monitoring center；
If not existing, data are write direct, the data that the second security module is written into the first security module are encrypted with key, and will be added
The first security module is written in ciphertext after close.
Further, the electric energy quality monitoring center further includes removing module, for by the history of each distributed generation resource
Data, which generate Message Authentication Code and are sent to after the laptop of staff, destroys the second security module and is written into the first peace
The data of full module encrypt the key generated with key.
Advantages of the present invention has：The safety for taking into account both inquiry end and electric energy quality monitoring center, is moved on a large scale in data
When state extends, not because encryption and decryption lead to system Caton.Data monitoring node can accurately obtain network signal arrival
The correct time of a certain node in network has preferably the loss situation of the ether frame signal from unlike signal received
Fault-tolerance improves and effectively improves the real-time to distributed generation resource electric energy quality monitoring, it is ensured that a degree of
Data acquisition, transmission, preservation in extreme weather, improve power supply reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of equipment for monitoring power quality of the present invention.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated：
A kind of electric energy quality monitoring inquiry system, including following part：Data monitoring node, it is distributed for real-time detection
The power quality data index of power supply, and the power quality data index that will test is transferred to unloading node；Unloading node is used
It received, stored and is uploaded in the power quality data index to distributed generation resource；Electric energy quality monitoring center, for connecing
It receives and handles the power quality data index of distributed generation resource and all distributed generation resource power qualities in monitoring network segment are referred to
Target concentrates supervision and management；Laptop, for realizing all distributed generation resource power qualities in remote inquiry monitoring network segment
State, it is characterised in that communication interaction is carried out by ethernet netting twine between the data monitoring node and unloading node, it is described
Communication interaction, the electric energy quality monitoring center and pen are carried out by 4G network between unloading node and electric energy quality monitoring center
Remember that this computer carries out communication interaction by internet.
The inquiry system further includes：
Identifying code generation module is sent to work for the historical data of each distributed generation resource to be generated Message Authentication Code
The laptop of personnel；
Rights encryption module receives Message Authentication Code for staff, and will return after the encryption of the search access right of acquisition
To electric energy quality monitoring center；
The plaintext met in search access right is encrypted and is passed for the search access right according to staff by plaintext encrypting module
It is defeated by the laptop of staff；
Plain text authentication module, for calculating required plaintext mi, and verify mi, wherein i is the historical data that staff needs
Call number, miFor i-th historical data of electric energy quality monitoring center storage.
Further, the upper outer access at the electric energy quality monitoring center has storage medium, and the is arranged in the storage medium
The second security module is arranged on the hard disk in the host at the electric energy quality monitoring center, for accessing first in one security module
Security module；The electric energy quality monitoring center further includes judgment module, for judging the ground of Message Authentication Code data to be written
Whether location is in the first security module, if the address of data to be written, in the first security module, the second security module is read
One key of origination message identifying code data and generation that SRAM fixing address section generates in the host at electric energy quality monitoring center；
If not existing, data are write direct, the data that the second security module is written into the first security module are encrypted with key, and will be added
The first security module is written in ciphertext after close.
Further, the electric energy quality monitoring center further includes removing module, for by the history of each distributed generation resource
Data, which generate Message Authentication Code and are sent to after the laptop of staff, destroys the second security module and is written into the first peace
The data of full module encrypt the key generated with key.
Storage medium is accessed on the host at electric energy quality monitoring center, the first security module is set in storage medium,
Second security module is set on the hard disk in the host at electric energy quality monitoring center, for accessing the first security module；
Judge the address of Message Authentication Code data to be written whether in the first security module；If the address of data to be written
In the first security module, then carry out in next step；If not existing, data are write direct；
Second security module reads the origination message that SRAM fixing address section generates in the host at electric energy quality monitoring center
Identifying code data simultaneously generate a key；
The data that second security module is written into the first security module are encrypted with key, and encrypted ciphertext is written
First security module.
After the historical data generation Message Authentication Code of each distributed generation resource is sent to the laptop of staff
It destroys the second security module and is written into the key that the data of the first security module are generated with key encryption.
Identifying code generation module is specifically used for the historical data of distributed generation resource each in electric energy quality monitoring center is raw
H is ultimately generated for each historical data to be mapped as to the value of a regular length at message hash value1L Hn, as message
Identifying code；
Wherein, Hj←H(j,mj,qj) generate the message authentication code H for carrying cleartext informationj, j expression j-th strip information, mjTable
Show the plaintext of j-th strip message, qjIndicate permission needed for reading j-th strip message, j=1,2 ..., n, n represents electric energy quality monitoring
The historical data number of central store.
Rights encryption module is specifically used for staff to gather around there are two parameter being i, qi, calculate without cleartext information
Hash value hi；
Wherein, hi←H1(i,qi) generate without cleartext information message authentication code hi：Wherein i is staff's needs
Historical data call number, qiFor permission needed for i-th information of reading；Staff chooses (t, hi), utilize elliptic curve
Public key cryptosyst encryption generates encrypted authority credentials jmdi；Wherein, jmdi=tP+hi·P；P is a bit on elliptic curve, should
Point is the basic point that elliptic curve cryptosystem generates, and t is random integers；Staff's laptop is by the jmd of generationiIt sends
Give electric energy quality monitoring center.
Plaintext encrypting module is specifically used for electric energy quality monitoring center and calculates the first data without clear-text message
Hash value h1；Electric energy quality monitoring center calculation S1=m1+jmdi-h1·P；Wherein, m1It is that electric energy quality monitoring center is stored
First data；h1GP is h1Through the encrypted data of elliptic curve cryptosystem；S1It indicates the 1st in electric energy quality monitoring center
Encrypted value corresponding to data.And so on, the second data is successively calculated to a last data, is calculated
S2...Sj....Sn, wherein SjIndicate encrypted value corresponding to j-th strip data in electric energy quality monitoring center；Power quality
Monitoring center is by message parameter (S1...Sn) it is sent to staff.
Plain text authentication module is specifically used for plaintext mi=Si-t·P；Wherein SiI-th is indicated in electric energy quality monitoring center
Encrypted value corresponding to data, t are random integers, and P point is the basic point that elliptic curve cryptosystem generates；Utilize generation
Message Authentication Code Hi, verify miIt is whether correct.
Historical data includes the text and column statistical chart of data.
It is equipped with ethernet signal acquisition module on the data monitoring node and unloading node, for acquiring data monitoring
Ethernet signal between node and unloading node；A/D conversion module, for converting digital letter for Ethernet analog signal
Number；Pre- storing module, for prestoring local preamble sequence；Matching module, for by the list entries of the digital signal and local
Preamble sequence is matched, if exact matching, illustrates to receive ethernet frame signal, output confirmation pulse；Trigger module,
For receiving the confirmation pulse of matching module output, and calibration record module is delivered to as trigger signal；Calibration record mould
Block receives trigger signal for calibrating to local zone time, triggers current precise time and by time tranfer to electric energy matter
Measure monitoring center.
The matching module further includes delay timing generation module, for when receiving digital signal, record to be worked as respectively
Previous frame moment character string, previous frame moment character string and local frame head moment character string, carve characters when calculating previous frame
It accords with the difference T1 of sequence and local frame head moment character string and carves character string and previous frame moment character sequence when the current frame
The difference T2 of column, if T1<T2, then the delay data of successful match be T1, and so on, when receiving new digital signal into
The above-mentioned Ether frame Signal Matching of row obtains the delay data of a new successful match, the collection of the delay data of all successful match
It is combined into a delay timing, the delay timing is transferred to electric energy quality monitoring center and is uploaded for analysis data packet in cable
Defeated delay rule and later period training and learning use.
A kind of electric energy quality monitoring querying method, includes the following steps：
001, each data monitoring node acquires the power quality index of the distributed generation resource respectively monitored in real time, and by electric energy
Quality index is periodically sent to corresponding unloading node；
002, unloading node is after the successful signal of communication of networking for receiving electric energy quality monitoring center, in response to electric energy matter
The signal of communication for measuring monitoring center, is sent to electric energy quality monitoring center for received power quality index；
003, electric energy quality monitoring center encrypts historical data after saving historical data, and staff can pass through notes
The historical data saved in electric energy quality monitoring center is decrypted in this computer remote, and browses access historical data.
Following steps are specifically included in the step 003：
The historical data of each distributed generation resource is generated Message Authentication Code and is sent to work by 031. electric energy quality monitoring center
Make the laptop of personnel；
The laptop of 032. staff receives Message Authentication Code, and will be back to after the encryption of the search access right of acquisition
Electric energy quality monitoring center；
033. electric energy quality monitoring center encrypts the plaintext met in search access right according to the search access right of staff
It is transferred to the laptop of staff；
034. calculates required plaintext mi, and verify mi, wherein i is the call number for the historical data that staff needs, miFor
I-th historical data of electric energy quality monitoring center storage.
It is further comprising the steps of before the step 031：
Storage medium is accessed on the host at electric energy quality monitoring center, the first security module is set in storage medium,
Second security module is set on the hard disk in the host at electric energy quality monitoring center, for accessing the first security module；
Judge the address of Message Authentication Code data to be written whether in the first security module；If the address of data to be written
In the first security module, then carry out in next step；If not existing, data are write direct；
Second security module reads the origination message that SRAM fixing address section generates in the host at electric energy quality monitoring center
Identifying code data simultaneously generate a key；
The data that second security module is written into the first security module are encrypted with key, and encrypted ciphertext is written
First security module.
The historical data of each distributed generation resource is generated into Message Authentication Code in the step 031 and is sent to staff's
The second security module is destroyed after laptop is written into the key that the data of the first security module are generated with key encryption.
Step 031 includes the following steps：
Step 0311：The historical data of distributed generation resource each in electric energy quality monitoring center is generated into message hash value,
For each historical data to be mapped as to the value of a regular length, H is ultimately generated1L Hn, as Message Authentication Code；
Wherein, Hj←H(j,mj,qj) generate the message authentication code H for carrying cleartext informationj, j expression j-th strip information, mjTable
Show the plaintext of j-th strip message, qjIndicate permission needed for reading j-th strip message, j=1,2 ..., n, n represents electric energy quality monitoring
The historical data number of central store.
Step 032 includes the following steps：
Step 0321：It is i, q that staff's laptop, which is gathered around there are two parameter,i, calculate without cleartext information
Hash value hi；
Wherein, hi←H1(i,qi) generate without cleartext information message authentication code hi：Wherein i is staff's needs
Historical data call number, qiFor permission needed for i-th information of reading；
Step 0322：Staff chooses (t, hi), encrypted permission is generated using elliptic curve cryptosystem encryption
Value jmdi；
Wherein, jmdi=tP+hi·P；P is a bit on elliptic curve, which is the base that elliptic curve cryptosystem generates
Point, t are random integers；
Step 0323：Staff's laptop is by the jmd of generationiIt is sent to electric energy quality monitoring center.
Step 033 includes the following steps：
Step 0331：First data is calculated the hash value h without clear-text message by electric energy quality monitoring center1；
Step 0332：Electric energy quality monitoring center calculation S1=m1+jmdi-h1·P；Wherein, m1It is in electric energy quality monitoring
Feel the first data of storage；h1GP is h1Through the encrypted data of elliptic curve cryptosystem；S1It indicates in electric energy quality monitoring
Encrypted value corresponding to 1st data in the heart.
Step 0333：And so on, the second data is successively calculated to a last data, is calculated
S2...Sj....Sn, wherein SjIndicate encrypted value corresponding to j-th strip data in electric energy quality monitoring center；
Step 0334：Electric energy quality monitoring center is by message parameter (S1...Sn) it is sent to staff.
Plaintext m in step 034i=Si-t·P；Wherein SiIt indicates in electric energy quality monitoring center corresponding to the i-th data
Encrypted value, t is random integers, and P point is the basic point that elliptic curve cryptosystem generates；Utilize the Message Authentication Code of generation
Hi, verify miIt is whether correct.
Historical data includes the text and column statistical chart of data.
Power quality index is periodically sent to corresponding unloading node further comprising the steps of in the step 002：Point
Not Cai Ji data monitoring node and unloading node ethernet signal；Digital signal is converted by Ethernet analog signal；It prestores
Local preamble sequence；The list entries of the digital signal is matched with local preamble sequence, if exact matching, says
It is bright to receive ethernet frame signal, output confirmation pulse；The confirmation pulse of output is received, and as trigger signal；To local
Time is calibrated, and triggers current precise time and by time tranfer to electric energy quality monitoring center；In electric energy quality monitoring
The heart compares the ethernet frame signal arrival time of data monitoring node and unloading node, obtains data monitoring node and unloading node
Between network signal propagation delay time.
The list entries by the digital signal matched with local preamble sequence after further include for：When receiving
When digital signal, records carve character string, previous frame moment character string and local frame head moment character when the current frame respectively
Sequence calculates the difference T1 and the Fu Xu that carves characters when the current frame of previous frame moment character string and local frame head moment character string
The difference T2 of column and previous frame moment character string, if T1<T2, then the delay data of successful match is T1, and so on, when connecing
Above-mentioned Ether frame Signal Matching is carried out when receiving new digital signal obtains the delay data of a new successful match, all
Collection with successful delay data is combined into a delay timing, and the delay timing is transferred to electric energy quality monitoring center and is supplied
The delay rule and later period training and learning that analysis data packet is transmitted on cable use.
Claims (4)
1. a kind of electric energy quality monitoring inquiry system, including following part：Data monitoring node is used for real-time detection distributed electrical
The power quality data index in source, and the power quality data index that will test is transferred to unloading node；Unloading node, is used for
The power quality data index of distributed generation resource is received, stored and uploaded；Electric energy quality monitoring center, for receiving
With the power quality data index of processing distributed generation resource and to all distributed generation resource power quality indexs in monitoring network segment
Concentration supervision and management；Laptop, for realizing all distributed generation resource power quality shapes in remote inquiry monitoring network segment
State, it is characterised in that between the data monitoring node and unloading node by ethernet netting twine carry out communication interaction, described turn
It deposits and communication interaction, the electric energy quality monitoring center and notes is carried out by 4G network between node and electric energy quality monitoring center
This computer carries out communication interaction by internet.
2. electric energy quality monitoring inquiry system according to claim 1, it is characterised in that the inquiry system further includes：
Identifying code generation module is sent to staff for the historical data of each distributed generation resource to be generated Message Authentication Code
Laptop；
Rights encryption module receives Message Authentication Code for staff, and will be back to electricity after the encryption of the search access right of acquisition
It can quality-monitoring center；
Plaintext encrypting module, for the search access right according to staff, by the plaintext encrypted transmission met in search access right to
The laptop of staff；
Plain text authentication module, for calculating required plaintext mi, and verify mi, wherein i is the rope for the historical data that staff needs
Quotation marks, miFor i-th historical data of electric energy quality monitoring center storage.
3. electric energy quality monitoring inquiry system according to claim 2, it is characterised in that the electric energy quality monitoring center
It is upper it is outer access have storage medium, the first security module, the master at the electric energy quality monitoring center are set in the storage medium
Second security module is set on the hard disk in machine, for accessing the first security module；The electric energy quality monitoring center further includes
Judgment module, for judging the addresses of Message Authentication Code data to be written whether in the first security module, if data to be written
Address in the first security module, then the second security module read electric energy quality monitoring center host in SRAM fixing address
One key of origination message identifying code data and generation that section generates；If not existing, data are write direct, the second security module will
The data of first security module to be written are encrypted with key, and the first security module is written in encrypted ciphertext.
4. electric energy quality monitoring inquiry system according to claim 3, it is characterised in that the electric energy quality monitoring center
It further include removing module, for the historical data of each distributed generation resource to be generated the pen that Message Authentication Code is sent to staff
The key that the second security module is written into the data key encryption generation of the first security module is destroyed after remembering this computer.
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| GILAD ASHAROV: ""More efficient oblivious transfer and extensions for faster secure computation"", 《PROCEEDINGS OF THE 2013 ACM SIGSAC CONFERENCE ON COMPUTER & COMMUNICATIONS SECURITY》 * |
| 祝恩国、窦健: ""用电信息采集系统双向互动功能设计及关键技术"", 《电力系统自动化》 * |
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