CN106655487A - Intelligent and safe all-around early warning and control system for power distribution network - Google Patents
Intelligent and safe all-around early warning and control system for power distribution network Download PDFInfo
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- CN106655487A CN106655487A CN201610861596.3A CN201610861596A CN106655487A CN 106655487 A CN106655487 A CN 106655487A CN 201610861596 A CN201610861596 A CN 201610861596A CN 106655487 A CN106655487 A CN 106655487A
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Classifications
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- H02J13/0075—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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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
- H04L63/045—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 hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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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
- H04L63/12—Applying verification of the received information
- H04L63/126—Applying verification of the received information the source of the received data
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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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
- Y04S40/12—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 characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—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 characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
-
- 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
- Y04S40/12—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 characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—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 characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
-
- 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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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides an intelligent and safe all-around early warning and control system for power distribution network. A server, based on the classification, statistics, calculation and analysis result of the data acquired and transmitted by an onsite data acquisition terminal in combination with the historical data information saved in a database, provides a series of functions such as information inquiry and customized report and analysis report formation so as to support its comprehensive applications in finding out the reasons for a power failure and reliability data statistics. The various data of the power distribution network contain the real time data, the non-real-time data and the quasi-real-time data. The detailed function modules comprise: power distribution network fault cause classification and analysis; scheduling and work plan search and analysis; scheduling operation ticket statistics and classification; power-off work classification and work evaluation; power supply reliability analysis and statistics; and other comprehensive applications carried out especially for the requirement of a user.
Description
Technical field
The present invention relates to electric power system field, more particularly to a kind of comprehensive early warning of distribution network intelligent and safe and control system
System.
Background technology
For a long time, the supply network and supply station of electric power system is patrolled and examined and carried out using manual type more than work, tradition
Manual inspection mode do not only exist the weak points such as high labor intensive, inefficiency, detection mass-dispersion, means are single,
And also the data for manually being detected cannot be accurately and timely sent in management information system in follow-up work afterwards
Data are processed.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, it is an object of the present invention to provide a kind of distribution network is intelligently pacified
Complete comprehensive early warning and control system, including：Server and it is multiple with server by showing that GPRS or fiber optic communication are connected
Field data acquisition terminal；
Field data acquiring terminal is arranged on monitored transformer station or monitored power equipment, on-site data gathering end
Hold for being acquired to the transformer station being monitored or the data message inside monitored power equipment, and the data that will be gathered
Information uploads onto the server；
Field data acquiring terminal includes：Processor, low pass filter, signal amplification module, wireless communication module, power supply
Module, data acquisition storage module, electric energy meter data acquisition module, quantity of state acquisition module, ac analog acquisition module, go through
History data processing module, potential device data acquisition module, supply line's data acquisition module, breaker data acquisition module,
Disconnecting switch data acquisition module, residual current detection transformer, earthed switch data acquisition module, it is arranged on primary side current
Transformer, primary side voltage transformer, secondary side current mutual inductance component, secondary side mutual induction of voltage component；Primary side current mutual inductance
Device Real-time Collection primary side three-phase current data are simultaneously transferred to server；Primary side voltage transformer Real-time Collection primary side three-phase
Voltage data is simultaneously transferred to server；Secondary side current mutual inductance component Real-time Collection secondary side three-phase current data are simultaneously transferred to clothes
Business device；Secondary side mutual induction of voltage component Real-time Collection secondary side three-phase voltage data is simultaneously transferred to server；
Electric energy meter data acquisition module be used for by setting check meter day or timing acquisition time interval electric energy meter data are entered
Row collection, storage, and collection electric energy meter data are sent into processor；
Quantity of state acquisition module is used for Real-time Collection low-voltage platform area low tension switch location status, and low tension switch is conjugated
When, by low tension switch displacement information storage, and it is sent to processor；
Ac analog acquisition module is used for by use requirement predeterminated voltage, electric current, power, power, power factor simulation
Amount collection, measurement voltage, electric current, power, power factor, and with the out-of-limit statistics of voltage monitoring, voltage class of accuracy is
0.5, with harmonic data statistics, harmonic component class of accuracy is 1；
Historical data processing module is used for by the data of collection in units of day, in next day zero point history of forming day data,
And preserve nearest data on the 30th, according to the guick freezing room of setting every with 15min, 30min, 45min, 60min is formed and all kinds of is freezed song
Line number evidence, and nearest 30 days curve datas are preserved, and it is sent to processor；
Potential device data acquisition module is used for collection site potential device and the controller switching equipment being adapted with potential device
Analog quantity, each side electric current of transformer, voltage, active power, reactive power, coil temperature, oil temperature, and be sent to processor；
Supply line's data acquisition module is used to gather electric current, active power, the reactive power of supply line；Bus
Voltage, frequency；The three-phase voltage of supply line, three-phase current, residual voltage, zero-sequence current, and it is sent to processor；
The breaker data acquisition module, disconnecting switch data acquisition module, earthed switch data acquisition module difference
For the switching value of collection site equipment, switching value includes：Circuit breaker position, disconnecting switch, earthed switch position, breaker are opened
Off position, protection act resultant signal, on the spot/distant place switch positions, breaker operation mechanism abnormal signal, control loop are broken
Line signal, protection alarm signal, protection device fault-signal, and it is sent to processor；
Secondary side current mutual inductance component includes：The input termination secondary side circuit of current transformer, current transformer, electric current
First output end of transformer connects respectively the negative electrode of diode DdL1, the anode of diode DdL2, transport and placing device electrode input end, electricity
Hold CdL1 first ends, resistance RdL1, the second output end of current transformer meets respectively the anode of diode DdL1, diode DdL2
Negative electrode, transport and placing device negative input, transport and placing device output termination secondary side current mutual inductance component output end；Secondary side current is mutual
The output end of sense component connects processor by low pass filter；
Secondary side mutual induction of voltage component includes：The input of voltage transformer U1, voltage transformer U1 passes through respectively resistance
Rdy1 and resistance Rdy2 connect secondary side circuit, and the first output end of voltage transformer connects respectively the negative electrode of diode Ddy1, two poles
The anode of pipe Ddy2, transport and placing device electrode input end, electric capacity Cdy1 first ends, resistance Rdy3 first ends, the second of voltage transformer
Output end connects respectively the anode of diode Ddy1, the negative electrode of diode Ddy2, transport and placing device negative input, transport and placing device output end,
The ends of electric capacity Cdy1 second, the ends of resistance Rdy3 second, the output end of secondary side mutual induction of voltage component connects simultaneously；Secondary side voltage is mutual
The output end of sense component connects processor by low pass filter；
Low pass filter includes：Filter the first electric capacity, the second electric capacity of filtering, the 3rd electric capacity of filtering, the 4th electric capacity of filtering, filter
The electric capacity of ripple the 5th, filtering first resistor, filtering second resistance, filtering 3rd resistor, filtering the 4th resistance, filtering the 5th resistance,
Filter the 6th resistance, filtered diode one, filtered diode two, filtering transport and placing device one, filtering transport and placing device two；
Filtering first resistor first end, the negative pole of filtered diode one, the positive pole of filtered diode two and filtering second resistance the
One end connects；Filtering first resistor second end, the positive pole of filtered diode one, the negative pole of filtered diode two, the first electric capacity of filtering the
One end is grounded simultaneously；Filtering second resistance second end, filters first the second end of electric capacity, the first end connection of filtering 3rd resistor；Filter
The end of ripple 3rd resistor second, filters the second electric capacity first end, and the 4th resistance first end of filtering connects simultaneously, the 4th resistance of filtering the
Two ends, filter the 3rd electric capacity first end, and the filtering electrode input end of transport and placing device one connects simultaneously, and the 3rd electric capacity second of filtering is terminated
Ground；The filtering negative input of transport and placing device one, filters the output end of transport and placing device one, filters second the second end of electric capacity, filters the 5th resistance
First end connects simultaneously；The 5th the second end of resistance is filtered, the 4th electric capacity is filtered, the 6th resistance of filtering connects simultaneously, and by filter
The capacity earth of ripple the 4th；Filter the electrode input end that the 6th resistance connects filtering transport and placing device two；The negative pole input of filtering transport and placing device two
End, filters the output end of transport and placing device two, and the 4th electric capacity of filtering connects simultaneously；Filtering transport and placing device one, filtering transport and placing device two connect respectively
Connect 5V power supplys；
Power module is used to provide operating voltage to processor by transformation and voltage stabilizing；Power module includes：Power interface,
First voltage stabilizing chip, the second voltage stabilizing chip, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th is electric
Hold；The pin of power interface three connects the first electric capacity first end, the first pin of voltage stabilizing chip one；First pin of voltage stabilizing chip two connection the
Three electric capacity first ends, the 5th electric capacity first end and 5v output ends；The pin of power interface one connects the second electric capacity first end, the second voltage stabilizing
Number pin of chip；First pin of voltage stabilizing chip three connects the 4th electric capacity first end, the 6th electric capacity first end and -5v output ends；Electricity
The pin of source interface two connects first the second end of electric capacity, the first pin of voltage stabilizing chip three, the 3rd the second end of electric capacity, the 5th electric capacity second
End, second the second end of electric capacity, the second pin of voltage stabilizing chip one, the 4th the second end of electric capacity, the 6th the second end of electric capacity and the earth；
Residual current detection transformer is used to detect the leakage current of electrical network, and by the leakage current of detection at signal
After reason, transmit to processor；
Processor includes：Leakage current multilevel iudge module, leakage current action setup module, deferred action setup module,
Electric leakage action output module；
Leakage current multilevel iudge module is used to for the leakage current of reception and preset value to be compared judgement, when electric leakage electricity
Stream is more than setting value, and after default delay duration, electric leakage action output module to action execution unit sends action letter
Number；Leakage current action setup module is used to arrange the rated value of earth leakage protective action；Deferred action setup module is used to arrange leakage
The delay duration of electric protection action；Action execution unit is used for the action signal sent according to electric leakage action output module, completes
Creepage protection function；
Processor is used for the data message to receiving and stores to data acquisition storage module, and controls radio communication
Module, data message is sent to server；
Server includes：Electric energy meter operation conditions monitoring modular, voltage monitoring module, power-factor monitoring module, switch
Module, limit value setup module, line loss analysis module, apparent energy curve generation module, apparent work(when amount monitoring modular, school
Rate contrast module, data interaction platform, database, data statistic analysis module；
Electric energy meter operation conditions monitoring modular is used for the data message that field data acquiring terminal sends, monitoring electric energy meter fortune
Row situation, monitoring electric energy meter operation conditions includes：Parameters of electric energy meter change, overproof electric energy meter time, electric meter fault information, electric energy
Degree of a representation declines, electric energy meter flies away, electric energy meter stops walking, infrared induction record, magnetic induction disturbance records；
Voltage monitoring module is used for being monitored with Network Voltage Deviation, to being counted with electrical network rate of qualified voltage；
Power-factor monitoring module is used to be carried out the power factor of monitoring point point by the power factor segmentation limit value for arranging
Analysis statistics, monthly power factor gets over cumulative time of the limit value generation in each section to record；
Switching value monitoring modular is used for the panel switches state according to field data acquiring terminal transmission, monitoring power-supply networks network
Switching-state information；
Module is used to be instructed to during field data acquiring terminal tranmitting data register school during school, gathers field data acquiring terminal
Clock it is identical with the crystal oscillator clock of server；
Limit value setup module is used to arrange the voltage and electric current of electric energy meter in monitor area and gets over limit value, power factor segmentation limit
Value；
Line loss analysis module is used for the topological structure according to electrical network, daily gathers single-phase, three-phase user under circuit
With the power consumption of platform area summary table, by setting up line loss analyzing model, the active loss of every circuit is analyzed in real time, more than one
Determine to be alerted after threshold values；
Apparent energy contrast module is used for according to the primary side three-phase electricity electric current of real-time Transmission, primary side three-phase voltage, and two
Secondary side three-phase electricity electric current, secondary side three-phase voltage calculates active power, reactive power, and draws apparent energy, makes apparent
Power curve；
Apparent energy contrast module is used to contrast primary side power information and secondary side power information, carries out Data Comparison simultaneously
Two apparent energy curves are depicted as in the same page, inform whether the side power information of user first and second deposits on a display screen
In multiplexing electric abnormality；
Data interaction platform is used to realize exchanging communication between user of service and operation maintenance personnel, and place is tracked to system
Reason, and the client port of mobile terminal connection is provided, make user of service be connected data using mobile terminal with operation maintenance personnel
Interaction platform；
Platform also provides for power information acquisition system construction specification, standard, acquisition system operation manual, asks common
Topic abnormality eliminating method related data sorted out, shown, facilitate user to consult, realize knowledge document management, knowledge collect with
Guidance, frequently asked questions function, angularly to be counted according to problem generation area, problem category, submission time, solution time
Collect, analyze；
Data statistic analysis module is used for the data for gathering to field data acquiring terminal and sending and with reference to database storage
The historical data information deposited, based on classification, statistics, the result for calculating and analyzing, there is provided information inquiry, report customization and analysis report
A series of functions such as formation are accused, the integrated application to support safety at power cut to search, in terms of reliability data statistics；Power distribution network is each
Class data include real time data, non-real-time data and near-realtime data；Specific functions of modules includes：The reason for distribution network failure
Classification analysis；The retrieval and analysis of traffic control plan；Dispatching is counted and classified；Power failure job classification is commented with work
It is fixed；Power supply reliability is analyzed and statistics；The integrated application that other application family needs and exclusively carries out.
Preferably, processor is connected by signal amplification module with wireless communication module, and signal amplification module is used for will place
The data message that reason device sends is amplified, and signal amplification module includes：Resistance Rsy2, resistance Rsy3, resistance Rsy4, electric capacity
Csy1, electric capacity Csy2, diode Dsy1, diode Dsy2, transport and placing device LMsy；
The input of signal amplification module connects the electrode input end of transport and placing device LMsy by resistance Rsy2, transport and placing device LMsy's
Negative input is grounded by resistance Rsy3, and by resistance Rsy4 the output end of signal amplification module is connect；Diode Dsy1, two poles
Pipe Dsy2 is connected in series, and the negative electrode of diode Dsy1 connects power supply, the plus earth of diode Dsy2；Diode Dsy1, diode
The output end of the indirect signal amplification module of Dsy2, the output end of transport and placing device LMsy.
Preferably, field data acquiring terminal includes：Clock circuit；
The clock circuit is used for by the clock setting to processor, completes the setting of processor clock；Clock circuit
Be connected with processor, in the rising edge of the next SULK clocks after control instruction character input, data are written into, data from
Low level 0 starts input processor；The trailing edge read-out processor number of the next pulse after the control instruction word immediately following 8
According to from low level 0 to high-order 7 when reading data；XI, X2 pin connects crystal oscillator, and for processor timely pulse is provided；
The clock circuit includes：Clock chip, quartz oscillation module, clock amplification module, clock capacitance Csz1, clock
Electric capacity Csz2, clock resistance Rsz1, clock resistance Rsz2；
The clock chip is set in the clock chip with the second, point, when, the date is clock data, by reading or writing acquisition
With modification clock data；There is the static RAM of 114 bytes inside the clock chip, faced by serial port for storage system
When the specific character lattice codebook that sets；The clock amplification module, clock capacitance Csz1, clock resistance Rsz1 composition clocks are put
Big circuit；The clock capacitance Csz2, clock resistance Rsz2 constitute filter circuit.
Preferably, field data acquiring terminal also includes：Data generation module, Digital Signature module, ciphertext generation module,
Encrypted session key generation module, encryption data sending module；
Data generation module is used for general to sent data message generation message using the default aes algorithm of server
Will；
Digital Signature module is used for the private key pair using default public key cryptography mechanism ELGamal of server using server
Produced message summary is digitally signed；
Ciphertext generation module is used to carry out AES encryption to data message using the default session key of server, obtains close
Text；
Encrypted session key generation module is used for the default public key cryptography mechanism ELGamal AES of server and profit
With the public key encryption session key of server, the data communication session key after being encrypted；
Encryption data sending module is used to send jointly to the ciphertext and session key after the digital signature of generation, encryption
Server；
Server also includes：Encrypted data reception module, ciphertext deciphering module, summary recovery module, summary deciphering module,
Summary contrast module；
Encrypted data reception module is used to receiving the data that field data acquiring terminal sends by communication network leads to
Letter session key, using public key cryptography mechanism ELGamal decipherment algorithm using the private key pair encryption of field data acquiring terminal
Session key is decrypted, and judges whether session key matches with default session key after decryption, if matched,
Receive digital signature and the ciphertext after encryption；
Ciphertext deciphering module is used to solve ciphertext using the session key for decrypting using default aes algorithm
It is close, obtain data message；
Summary generation module is used to disappear after the data message generation for decrypting ciphertext deciphering module using default aes algorithm
Breath summary；
Summary deciphering module is used to be sent using field data acquiring terminal using default public key cryptography mechanism ELGamal
Public key the digital signature for receiving is decrypted, obtain the message summary of field data acquiring terminal；
Summary judge module be used for the message summary that summary deciphering module obtained using server default aes algorithm with
The rear message summary that summary generation module is generated carries out contrast judgement, and the message summary that such as summary deciphering module is obtained is given birth to summary
The rear message summary generated into module is identical, then be judged as that data receiver successfully shows normally, if summary deciphering module is obtained
Message summary differ with the rear message summary that summary generation module is generated, then be judged as improper data, show abnormal.
Preferably, field data acquiring terminal also includes：Phase electro-detection module；Phase electro-detection module is used to detect secondary side
Three-phase electricity whether phase shortage, and when there is phase shortage, phase shortage information is sent to processor；
Phase electro-detection module includes：A phase electro-detections end, B phase electro-detections end, C phase electro-detections end, resistance R1, resistance R2, electricity
Resistance R3, resistance R4, resistance R5, resistance R6, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, diode D1,
Diode D2, diode D3, photoisolator；
A phase electro-detection ends connect photoisolator input by resistance R1, diode D1, resistance R2；
B phase electro-detection ends connect photoisolator input by resistance R3, diode D2, resistance R4；
C phase electro-detection ends connect photoisolator input by resistance R5, diode D3, resistance R6；
Photoisolator be provided with A phase electro-detection ends relative to A phase electro-detection output ends, it is relative with B phase electro-detections end
In B phase electro-detection output ends, with C phase electro-detection ends relative to C phase electro-detection output ends.
Preferably, also include：The market demand terminal being connected with server communication；
Market demand terminal includes：Camera, recording module, d GPS locating module, USB interface, identification module, number
According to storage module, data interaction module；
D GPS locating module is used for user when using market demand terminal, carries out position positioning；
Data interaction module is used to make user when scene is patrolled and examined, and reports patrol record, patrols and examines result, and obtains
Take the field equipment data information of server storage；
Authentication module includes：ID card reader；
ID card reader is adapted with fingerprint capturer；
ID card reader is provided with formation-decoding module, and fingerprint capturer is by fingerprint collecting program and data processing
Module is connected；Identity data in resident identification card is decoded by brush card program transportation to the information in ID card reader
Module；Formation-decoding module is connected respectively with panel computer and data processing module；
Market demand terminal is provided with ID card information data-interface, fingerprint sensor interface, fingerprint algorithm module, fingerprint
Algorithm protection module；
Electrical network detection means is built-in with the close algoritic module of state, canonical algorithm module；The close algoritic module of state for support SM1,
The module of the close algorithm fingerprint algorithm of SM2, SM3, SMS4, SM6, SSF33, SCB2 state；Canonical algorithm module for support RSA, ECC,
The module of AES, DES/3DES, SHA international standard algorithm.
Preferably, market demand terminal was additionally operable to before the scene of carrying out is patrolled and examined, and user is using market demand terminal from clothes
Scene primary data to be maked an inspection tour is downloaded in business device or last time patrols and examines result, and be stored in the data storage module of market demand terminal
In；When carrying out live electricity consumption and patrolling and examining, according to onsite user's situation, patrolling for live power equipment is recorded in market demand terminal
Inspection result, with reference to the GPS location function of making an inspection tour mobile terminal, the geographical location information or use during real-time positioning scene power utility check
The geographical location information at family；
After end is patrolled and examined, the data message that described user has gathered market demand terminal to server is uploaded, real
Existing data exchange between market demand terminal and server, and update server internal database information updating.
Preferably, field data acquiring terminal includes：Line feed terminals acquisition control unit, distribution transformer terminals acquisition control list
Unit, data terminal acquisition control unit, branch line malfunctioning module；
Line feed terminals acquisition control unit, distribution transformer terminals acquisition control unit, data terminal acquisition control unit are to power supply
Switching station, ring main unit, switchgear house in system, box change, on-pole switch take remote measurement information, and the electricity based on different telemetry stations
Stream situation carries out fault location, isolates and restore electricity；
Branch line malfunctioning module be used for branched line using with earth fault processing function quick segmentation switch, when point
When propping up circuit generation singlephase earth fault in block switch region, branch segment switch is after delay judgement is permanent fault
Automatic brake separating, directly cuts off failure；When circuit occurs phase fault in branch segment switch region, such as branch segment switch is adopted
With breaker, trip on the spot excision failure；On-load switch, higher level's switch protection breaking, customer segment is such as adopted to switch in circuit
Separating brake and locking after dead electricity, after higher level's switch overlaps, adjacent lines restores electricity, and faulty line is isolated；Quick segmentation is switched
It is installed on high voltage electric family and the branched line that operating load is larger, fault rate is high；Overhead transmission line and cable run are respectively adopted
Quick segmentation is switched.
Preferably, field data acquiring terminal also includes：Clock message receiving processing module,
Server also includes：Clock message sending module, time synchronizing module, lock in time sending module；
Clock message sending module be used for data collection station tranmitting data register sync message, in clock sync message in set
There is clock synchronization preset mode；
Clock message receiving processing module is used to receive the clock sync message of clock message sending module transmission, receives same
Data collection station works under clock synchronization Setting pattern after step message, while sending response message, response report to server
Server sync setting pattern is provided with text；
Time synchronizing module is used to receive after response message, and using SntpClient Java, this class calls NTP letters
Number, carries out clock filtering, and by function client.requestTime local time stamp is obtained, and deducts data collection station place
Time zone deviation value, obtain the server sync time；
Lock in time sending module is used to the server sync time be sent to field data acquiring terminal, realizes server
With the field data acquiring terminal time unification.
As can be seen from the above technical solutions, the present invention has advantages below：
System passes through in field data acquiring terminal Real-time Collection power equipment and transformer station, and the data message that will be gathered
Reach server.Server carries out Treatment Analysis to the data message for gathering, it is to avoid manual inspection mode improves operating efficiency,
So that detection data centralized management, and can data be analyzed with process afterwards.
The data and the historical data with reference to database storage that server is gathered to field data acquiring terminal and sent are believed
Cease, based on classification, statistics, the result for calculating and analyzing, there is provided information inquiry, report customization and analysis report formation etc. is a series of
Function, the integrated application to support safety at power cut to search, in terms of reliability data statistics；Power distribution network Various types of data includes real-time
Data, non-real-time data and near-realtime data；Specific functions of modules includes：The reason for distribution network failure classification analysis；Scheduling
The retrieval and analysis of work plan；Dispatching is counted and classified；Power failure job classification and job evaluation；Power supply reliability point
Analysis and statistics；The integrated application that other application family needs and exclusively carries out.
Description of the drawings
In order to be illustrated more clearly that technical scheme, will make simple to the accompanying drawing to be used needed for description below
Introduce on ground, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill
For personnel, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the overall schematic of the comprehensive early warning of distribution network intelligent and safe and control system；
Fig. 2 is field data acquiring terminal schematic diagram；
Fig. 3 is secondary side mutual induction of voltage assembly circuit figure；
Fig. 4 is secondary side current mutual inductance assembly circuit figure；
Fig. 5 is low-pass filter circuit figure；
Fig. 6 is signal amplification module circuit diagram；
Fig. 7 is clock circuit circuit diagram；
Fig. 8 is phase electro-detection module circuit diagram；
Fig. 9 is power module circuitry figure.
Specific embodiment
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below will be with specific
Embodiment and accompanying drawing, are clearly and completely described, it is clear that enforcement disclosed below to the technical scheme of present invention protection
Example is only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in this patent, the common skill in this area
All other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of this patent protection
Enclose.
The present embodiment provides a kind of comprehensive early warning of distribution network intelligent and safe and control system, as shown in Figure 1 to 9, bag
Include：Server 1 and multiple field data acquiring terminals 2 being connected by GPRS or fiber optic communication with server 1；
Field data acquiring terminal 2 is arranged on monitored transformer station or monitored power equipment, on-site data gathering
Terminal 2 be used for be monitored transformer station or monitored power equipment inside data message be acquired, and by collection
Data message uploads onto the server 1；
Field data acquiring terminal 2 includes：Processor 11, low pass filter, signal amplification module 12, power module, nothing
Line communication module 13, data acquisition storage module 14, electric energy meter data acquisition module 15, quantity of state acquisition module 16, remaining electricity
Stream detection transformer 17, ac analog acquisition module 18, historical data processing module 19, potential device data acquisition module
20th, supply line's data acquisition module 21, breaker data acquisition module 22, disconnecting switch data acquisition module 23, ground connection are opened
Close data acquisition module, be arranged on primary side current transformer, primary side voltage transformer, secondary side current mutual inductance component, two
Secondary side mutual induction of voltage component；Primary side current transformer Real-time Collection primary side three-phase current data are simultaneously transferred to server 1；One
Secondary side voltage transformer Real-time Collection primary side three-phase voltage data is simultaneously transferred to server 1；Secondary side current mutual inductance component reality
When collection secondary side three-phase current data and be transferred to server 1；Secondary side mutual induction of voltage component Real-time Collection secondary side three-phase
Voltage data is simultaneously transferred to server 1；
Electric energy meter data acquisition module 15 is used to be spaced to electric energy meter data by check meter day or the timing acquisition time of setting
It is acquired, stores, and collection electric energy meter data is sent into processor 11；
Quantity of state acquisition module 16 is used for Real-time Collection low-voltage platform area low tension switch location status, and low tension switch is conjugated
When, by low tension switch displacement information storage, and it is sent to processor 11；
Ac analog acquisition module 18 is used to press use requirement predeterminated voltage, electric current, power, power, power factor mould
Analog quantity is gathered, measurement voltage, electric current, power, power factor, and with the out-of-limit statistics of voltage monitoring, voltage class of accuracy is
0.5, with harmonic data statistics, harmonic component class of accuracy is 1；
Historical data processing module 19 is used for by the data of collection in units of day, in next day zero point history of forming number of days
According to, and nearest data on the 30th are preserved, according to the guick freezing room of setting every with 15min, 30min, 45min, 60min forms all kinds of freezing
Curve data, and nearest 30 days curve datas are preserved, and it is sent to processor 11；
Potential device data acquisition module 20 sets for collection site potential device and the distribution being adapted with potential device
Standby analog quantity, each side electric current of transformer, voltage, active power, reactive power, coil temperature, oil temperature, and it is sent to processor
11；
Supply line's data acquisition module 21 is used to gather electric current, active power, the reactive power of supply line；Bus
Voltage, frequency；The three-phase voltage of supply line, three-phase current, residual voltage, zero-sequence current, and it is sent to processor 11；
Breaker data acquisition module 22, disconnecting switch data acquisition module 23, earthed switch data acquisition module difference
For the switching value of collection site equipment, switching value includes：Circuit breaker position, disconnecting switch, earthed switch position, breaker are opened
Off position, protection act resultant signal, on the spot/distant place switch positions, breaker operation mechanism abnormal signal, control loop are broken
Line signal, protection alarm signal, protection device fault-signal, and it is sent to processor 11；
Secondary side current mutual inductance component includes：The input termination secondary side circuit of current transformer U2, current transformer U2,
First output end of current transformer U2 connects respectively the negative electrode of diode DdL1, and the anode of diode DdL2, transport and placing device positive pole is defeated
Enter end, electric capacity CdL1 first ends, resistance RdL1, the second output end of current transformer connects respectively the anode of diode DdL1, two
The negative electrode of pole pipe DdL2, transport and placing device negative input, the output end of transport and placing device output termination secondary side current mutual inductance component；It is secondary
The output end of side Current Mutual Inductance component connects processor 11 by low pass filter；
Current transformer U2 plays a part of strong and weak electric isolution, and its specified input current is 5A, and output-current rating is
2.5mA.Electric capacity CdL1 generally takes 400-1000PF, for the phase shift caused by compensation current transformer U2, electric capacity CdL2, electric capacity
CdL3 is used to filter the harmonic wave of power supply, it is ensured that supply voltage is stablized.Diode DdL1, diode DdL2 prevents amplifier
The supersaturation of LMdL.Suitable resistance RdL1 is selected to guarantee that output voltage amplitude is suitable under any circumstance the work of processor 11
Deal with, it is to avoid because the influence of fluctuations processor 11 of voltage works.
Secondary side mutual induction of voltage component includes：The input of voltage transformer U1, voltage transformer U1 passes through respectively resistance
Rdy1 and resistance Rdy2 connect secondary side circuit, and the first output end of voltage transformer connects respectively the negative electrode of diode Ddy1, two poles
The anode of pipe Ddy2, transport and placing device electrode input end, electric capacity Cdy1 first ends, resistance Rdy3 first ends, the second of voltage transformer
Output end connects respectively the anode of diode Ddy1, the negative electrode of diode Ddy2, transport and placing device LMdy negative inputs, transport and placing device output
End, the ends of electric capacity Cdy1 second, the ends of resistance Rdy3 second, the output end of secondary side mutual induction of voltage component connects simultaneously；Secondary side electricity
The output end of pressure mutual inductance component connects processor by low pass filter；
If electrical network phase voltage virtual value is X, the no-load voltage ratio of voltage transformer is k, then voltage transformer secondary side output voltage
Virtual value is X/k, i.e., the input voltage virtual value of secondary side mutual induction of voltage component is X/k.
In the present embodiment, voltage transformer U1 plays a part of strong and weak electric isolution, and its specified input, output current are
2mA or so.To ensure that specified input current is 2mA or so, suitable resistance Rdy1 and resistance Rdy2 is chosen, make X/ [k (Rdy1+
Rdy2 the close 2mA of value)].Electric capacity Cdy1 generally takes 400-1000PF, for compensating the phase caused by accurate D.C mutual-inductor
Move；Electric capacity Cdy2, electric capacity Cdy3 be used to filter the harmonic wave of power supply, it is ensured that collection voltages are stablized；Diode Ddy1 and two
Pole pipe Ddy2 prevents the supersaturation of transport and placing device LMdy.Suitable resistance Rdy3 is selected to guarantee output voltage amplitude in any situation
Under be suitable for the work disposal of processor 11, it is to avoid because the influence of fluctuations processor 11 of voltage works.
Low pass filter includes：Filter the first electric capacity Cb1, the second electric capacity Cb2 of filtering, the 3rd electric capacity Cb3 of filtering, filtering the
Four electric capacity Cb4, the 5th electric capacity Cb5 of filtering, filtering first resistor Rb1, filtering second resistance Rb2, filtering 3rd resistor Rb3, filter
The resistance Rb4 of ripple the 4th, the 5th resistance Rb5 of filtering, the 6th resistance Rb6 of filtering, the DB1 of filtered diode one, filtered diode two
DB2, filtering transport and placing device 1, filtering transport and placing device 2 32；
Filtering first resistor first end, the negative pole of filtered diode one, the positive pole of filtered diode two and filtering second resistance the
One end connects；Filtering first resistor second end, the positive pole of filtered diode one, the negative pole of filtered diode two, the first electric capacity of filtering the
One end is grounded simultaneously；Filtering second resistance second end, filters first the second end of electric capacity, the first end connection of filtering 3rd resistor；Filter
The end of ripple 3rd resistor second, filters the second electric capacity first end, and the 4th resistance first end of filtering connects simultaneously, the 4th resistance of filtering the
Two ends, filter the 3rd electric capacity first end, and the filtering electrode input end of transport and placing device one connects simultaneously, and the 3rd electric capacity second of filtering is terminated
Ground；The filtering negative input of transport and placing device one, filters the output end of transport and placing device one, filters second the second end of electric capacity, filters the 5th resistance
First end connects simultaneously；The 5th the second end of resistance is filtered, the 4th electric capacity is filtered, the 6th resistance of filtering connects simultaneously, and by filter
The capacity earth of ripple the 4th；Filter the electrode input end that the 6th resistance connects filtering transport and placing device two；The negative pole input of filtering transport and placing device two
End, filters the output end of transport and placing device two, and the 4th electric capacity of filtering connects simultaneously；Filtering transport and placing device one, filtering transport and placing device two connect respectively
Connect 5V power supplys；
Power module is used to provide operating voltage to processor by transformation and voltage stabilizing；Power module includes：Power interface
53, the first voltage stabilizing chip 51, the second voltage stabilizing chip 52, the first electric capacity Czd1, the second electric capacity Czd2, the 3rd electric capacity Czd3, the 4th
Electric capacity Czd4, the 5th electric capacity Czd5, the 6th electric capacity Czd6；
The pin of power interface three connects the first electric capacity first end, the first pin of voltage stabilizing chip one；First pin of voltage stabilizing chip two
Connect the 3rd electric capacity first end, the 5th electric capacity first end and 5v output ends；The pin of power interface one connects the second electric capacity first end, the
Two pin of voltage stabilizing chip one；First pin of voltage stabilizing chip three connects the 4th electric capacity first end, and the 6th electric capacity first end and -5v are exported
End；The pin of power interface two connects first the second end of electric capacity, the first pin of voltage stabilizing chip three, the 3rd the second end of electric capacity, the 5th electric capacity
Second end, second the second end of electric capacity, the second pin of voltage stabilizing chip one, the 4th the second end of electric capacity, the 6th the second end of electric capacity and the earth.
Residual current detection transformer 17 is used to detect the leakage current of electrical network, and by the leakage current of detection through signal
After process, transmit to processor 11.
Processor 11 includes：Leakage current multilevel iudge module, leakage current action setup module, deferred action arrange mould
Block, electric leakage action output module；Leakage current multilevel iudge module is used to be compared the leakage current of reception and preset value
Judge, when leakage current is more than setting value, and after default delay duration, electric leakage action output module is to action executing list
Unit sends action signal；Leakage current action setup module is used to arrange the rated value of earth leakage protective action；Deferred action arranges mould
Block is used to arrange the delay duration of earth leakage protective action；Action execution unit is used for according to moving that electric leakage action output module sends
Make signal, complete creepage protection function.
Processor 11 is used for the data message to receiving and stores to data acquisition storage module 14, and controls wireless
Communication module 13, data message is sent to server 1；
Server 1 includes：Electric energy meter operation conditions monitoring modular, voltage monitoring module, power-factor monitoring module, switch
Module, limit value setup module, line loss analysis module, apparent energy curve generation module, apparent work(when amount monitoring modular, school
Rate contrast module, data interaction platform, database；
Electric energy meter operation conditions monitoring modular is used for the data message that field data acquiring terminal sends, monitoring electric energy meter fortune
Row situation, monitoring electric energy meter operation conditions includes：Parameters of electric energy meter change, overproof electric energy meter time, electric meter fault information, electric energy
Degree of a representation declines, electric energy meter flies away, electric energy meter stops walking, infrared induction record, magnetic induction disturbance records；
Voltage monitoring module is used for being monitored with Network Voltage Deviation, to being counted with electrical network rate of qualified voltage；
Power-factor monitoring module is used to be carried out the power factor of monitoring point point by the power factor segmentation limit value for arranging
Analysis statistics, monthly power factor gets over cumulative time of the limit value generation in each section to record；
Switching value monitoring modular is used for the panel switches state according to field data acquiring terminal transmission, monitoring power-supply networks network
Switching-state information；
Module is used to be instructed to during field data acquiring terminal tranmitting data register school during school, gathers field data acquiring terminal
Clock it is identical with the crystal oscillator clock of server；
Limit value setup module is used to arrange the voltage and electric current of electric energy meter in monitor area and gets over limit value, power factor segmentation limit
Value；
Line loss analysis module is used for the topological structure according to electrical network, daily gathers single-phase, three-phase user under circuit
With the power consumption of platform area summary table, by setting up line loss analyzing model, the active loss of every circuit is analyzed in real time, more than one
Determine to be alerted after threshold values；Apparent energy contrast module is used for the primary side three-phase electricity electric current according to real-time Transmission, primary side three
Phase voltage, secondary side three-phase electricity electric current, secondary side three-phase voltage calculates active power, reactive power, and draws apparent work(
Rate, makes apparent energy curve；Apparent energy contrast module is used to contrast primary side power information and secondary side power information, enters
Row Data Comparison is simultaneously depicted as two apparent energy curves in the same page, and the side of user first and second use is informed on a display screen
Power information whether there is multiplexing electric abnormality；Data interaction platform is used to realize exchanging communication between user of service and operation maintenance personnel, right
System is tracked process, and provides the client port that mobile terminal connects, and makes user of service use shifting with operation maintenance personnel
Dynamic terminal connects data interaction platform；Platform also provides for power information acquisition system construction specification, standard, acquisition system behaviour
Make handbook, FAQs abnormality eliminating method related data is sorted out, shown, facilitate user to consult, realize knowledge document
Manage, knowledge is collected and guidance, frequently asked questions function, during so that area, problem category, submission time, solution occurring according to problem
Between angularly carry out statistical summaries, analysis.
Data statistic analysis module is used for the data for gathering to field data acquiring terminal and sending and with reference to database storage
The historical data information deposited, based on classification, statistics, the result for calculating and analyzing, there is provided information inquiry, report customization and analysis report
A series of functions such as formation are accused, the integrated application to support safety at power cut to search, in terms of reliability data statistics；Power distribution network is each
Class data include real time data, non-real-time data and near-realtime data；Specific functions of modules includes：The reason for distribution network failure
Classification analysis；The retrieval and analysis of traffic control plan；Dispatching is counted and classified；Power failure job classification is commented with work
It is fixed；Power supply reliability is analyzed and statistics；The integrated application that other application family needs and exclusively carries out.
Processor 11 is connected by signal amplification module 12 with wireless communication module 13, and signal amplification module 12 is used for will place
The data message that reason device 11 sends is amplified, and signal amplification module 12 includes：Resistance Rsy2, resistance Rsy3, resistance Rsy4, electricity
Hold Csy1, electric capacity Csy2, diode Dsy1, diode D sy2, transport and placing device LMsy；The input of signal amplification module is by electricity
Resistance Rsy2 connects the electrode input end of transport and placing device LMsy, and the negative input of transport and placing device LMsy is grounded by resistance Rsy3, by electricity
Resistance Rsy4 connects the output end of signal amplification module；Diode Dsy1, diode Dsy2 are connected in series, and the negative electrode of diode Dsy1 connects
Power supply, the plus earth of diode Dsy2；The output end of diode Dsy1, the indirect signal amplification module of diode Dsy2, fortune
Put the output end of device LMsy.
In the present embodiment, field data acquiring terminal includes：Clock circuit；
The clock circuit is used for by the clock setting to processor, completes the setting of processor clock；Clock circuit
Be connected with processor, in the rising edge of the next SULK clocks after control instruction character input, data are written into, data from
Low level 0 starts input processor；The trailing edge read-out processor number of the next pulse after the control instruction word immediately following 8
According to from low level 0 to high-order 7 when reading data；XI, X2 pin connects crystal oscillator, and for processor timely pulse is provided；
Field data acquiring terminal 2 also includes：Clock circuit；Clock circuit is used to be set by the clock to processor 11
Put, complete the setting of processor clock；Clock circuit is connected with processor, the next SULK after control instruction character input
Data are written into during the rising edge of clock, and data start input processor from low level 0；After the control instruction word immediately following 8
The trailing edge read-out processor data of next pulse, from low level 0 to high-order 7 when reading data；The connection of XI, X2 pin is brilliant
Shake, for processor timely pulse is provided；Clock circuit includes：Clock chip 53, quartz oscillation module 51, clock amplification module
52nd, clock capacitance Csz1, clock capacitance Csz2, clock resistance Rsz1, clock resistance Rsz2；The clock is set in clock chip 53
Chip is divided with the second, when, the date is clock data, and by reading or writing clock data is obtained and change；Have inside the clock chip
The static RAM of 114 bytes, for the specific character lattice codebook that storage system passes through serial port setting temporarily；The clock
Amplification module 52, clock capacitance Csz1, clock resistance Rsz1 composition clock amplifier circuits；The clock capacitance Csz2, clock electricity
Resistance Rsz2 composition filter circuits；
Processor 11 always constantly obtains collection information, it is therefore desirable to real-time clock function is provided, to gather acquisition
Information provides accurately real-time time, and requires that real-time clock can continue to work after system power failure, re-power
Afterwards, real-time clock still provides the time with current sync.Simultaneously in order to debug conveniently, the real-time clock need to have programmable work(
Can, can be by programming setting time.Clock chip, a High Precision Crystal Oscillator and one block of electricity that charges can be included in control device
Pond 54.After whole system power down, the power supply required for clock chip normal work is provided by rechargeable battery.
In the present embodiment, field data acquiring terminal also includes：Phase electro-detection module；Phase electro-detection module is used for detection two
Secondary side three-phase electricity whether phase shortage, and when there is phase shortage, phase shortage information is sent to processor；
Phase electro-detection module includes：A phase electro-detections end, B phase electro-detections end, C phase electro-detections end, resistance R1, resistance R2, electricity
Resistance R3, resistance R4, resistance R5, resistance R6, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, diode D1,
Diode D2, diode D3, photoisolator；
A phase electro-detection ends connect photoisolator input by resistance R1, diode D1, resistance R2；
B phase electro-detection ends connect photoisolator input by resistance R3, diode D2, resistance R4；
C phase electro-detection ends connect photoisolator input by resistance R5, diode D3, resistance R6；
Photoisolator be provided with A phase electro-detection ends relative to A phase electro-detection output ends, it is relative with B phase electro-detections end
In B phase electro-detection output ends, with C phase electro-detection ends relative to C phase electro-detection output ends.
System also includes：The market demand terminal being connected with server communication；
Market demand terminal includes：Camera, recording module, d GPS locating module, USB interface, identification module, number
According to storage module, data interaction module；
D GPS locating module is used for user when using market demand terminal, carries out position positioning；Data interaction module is used for
Make user when patrolling and examining scene, report patrol record, patrol and examine result, and the field apparatus number for obtaining server storage
It is believed that breath；Authentication module includes：ID card reader；ID card reader is adapted with fingerprint capturer；
ID card reader is provided with formation-decoding module, and fingerprint capturer is by fingerprint collecting program and data processing module phase
Even；Identity data in resident identification card is by brush card program transportation to the formation-decoding module in ID card reader；
Formation-decoding module is connected respectively with panel computer and data processing module；
Market demand terminal is provided with ID card information data-interface, fingerprint sensor interface, fingerprint algorithm module, fingerprint
Algorithm protection module；
Electrical network detection means is built-in with the close algoritic module of state, canonical algorithm module；The close algoritic module of state for support SM1,
The module of the close algorithm fingerprint algorithm of SM2, SM3, SMS4, SM6, SSF33, SCB2 state；Canonical algorithm module for support RSA, ECC,
The module of AES, DES/3DES, SHA international standard algorithm.
Market demand terminal was additionally operable to before the scene of carrying out is patrolled and examined, under user uses market demand terminal from server
Carry scene primary data to be maked an inspection tour or last time patrols and examines result, and be stored in the data storage module of market demand terminal；Entering
When row scene electricity consumption is patrolled and examined, according to onsite user's situation, live power equipment is recorded in market demand terminal patrols and examines result,
With reference to the GPS location function of making an inspection tour mobile terminal, the ground of geographical location information or user during real-time positioning scene power utility check
Reason positional information；
After end is patrolled and examined, the data message that described user has gathered market demand terminal to server is uploaded, real
Existing data exchange between market demand terminal and server, and update server internal database information updating.
Field data acquiring terminal 2 includes：Line feed terminals acquisition control unit, distribution transformer terminals acquisition control unit, data
Terminal acquisition control unit, branch line malfunctioning module；
Line feed terminals acquisition control unit, distribution transformer terminals acquisition control unit, data terminal acquisition control unit are to power supply
Switching station, ring main unit, switchgear house in system, box change, on-pole switch take remote measurement information, and the electricity based on different telemetry stations
Stream situation carries out fault location, isolates and restore electricity；
Branch line malfunctioning module be used for branched line using with earth fault processing function quick segmentation switch, when point
When propping up circuit generation singlephase earth fault in block switch region, branch segment switch is after delay judgement is permanent fault
Automatic brake separating, directly cuts off failure；When circuit occurs phase fault in branch segment switch region, such as branch segment switch is adopted
With breaker, trip on the spot excision failure；On-load switch, higher level's switch protection breaking, customer segment is such as adopted to switch in circuit
Separating brake and locking after dead electricity, after higher level's switch overlaps, adjacent lines restores electricity, and faulty line is isolated；Quick segmentation is switched
It is installed on high voltage electric family and the branched line that operating load is larger, fault rate is high；Overhead transmission line and cable run are respectively adopted
Quick segmentation is switched.
In the present embodiment, in order to ensure the security of each field data acquiring terminal and server communication data message,
Each field data acquiring terminal is respectively received the default AES of server, and each field data acquiring terminal is by number
According to being encrypted to data message before sending, and digital signature and session key are generated.Data message of the server for reception
It is decrypted, and enters row information verification to digital signature and session key, it is ensured that the security of data message.And server can
To arrange different default AESs for different field data acquiring terminals, server is set to receive encryption data
When, reply can be distinguished.Default AES includes aes algorithm, default public key cryptography mechanism ELGamal.Specifically
Predetermined encryption algorithm can be configured according to actual needs, not limit here.
Field data acquiring terminal also includes：Data generation module, Digital Signature module, ciphertext generation module, plus secret meeting
Words key production module, encryption data sending module；
Data generation module is used for general to sent data message generation message using the default aes algorithm of server
Will；
Digital Signature module is used for the private key pair using default public key cryptography mechanism ELGamal of server using server
Produced message summary is digitally signed；
Ciphertext generation module is used to carry out AES encryption to data message using the default session key of server, obtains close
Text；
Encrypted session key generation module is used for the default public key cryptography mechanism ELGamal AES of server and profit
With the public key encryption session key of server, the data communication session key after being encrypted；
Encryption data sending module is used to send jointly to the ciphertext and session key after the digital signature of generation, encryption
Server；
Server also includes：Encrypted data reception module, ciphertext deciphering module, summary recovery module, summary deciphering module,
Summary contrast module；
Encrypted data reception module is used to receiving the data that field data acquiring terminal sends by communication network leads to
Letter session key, using public key cryptography mechanism ELGamal decipherment algorithm using the private key pair encryption of field data acquiring terminal
Session key is decrypted, and judges whether session key matches with default session key after decryption, if matched,
Receive digital signature and the ciphertext after encryption；
Ciphertext deciphering module is used to solve ciphertext using the session key for decrypting using default aes algorithm
It is close, obtain data message；
Summary generation module is used to disappear after the data message generation for decrypting ciphertext deciphering module using default aes algorithm
Breath summary；
Summary deciphering module is used to be sent using field data acquiring terminal using default public key cryptography mechanism ELGamal
Public key the digital signature for receiving is decrypted, obtain the message summary of field data acquiring terminal；
Summary judge module be used for the message summary that summary deciphering module obtained using server default aes algorithm with
The rear message summary that summary generation module is generated carries out contrast judgement, and the message summary that such as summary deciphering module is obtained is given birth to summary
The rear message summary generated into module is identical, then be judged as that data receiver successfully shows normally, if summary deciphering module is obtained
Message summary differ with the rear message summary that summary generation module is generated, then be judged as improper data, show abnormal.
In the present embodiment, between server and each field data acquiring terminal time unification is needed.Server obtains mark
Between punctual, and each field data acquiring terminal will be distributed to the standard time realize time unification, such whole network carried out
Error can be reduced during data fusion or mistake is occurred without.And high-precision time adjustment, while encrypted acknowledgment can be passed through
Mode is reducing the protocol attack of malice.Server realizes each on-site data gathering end as the synchronous clock source of clock source
End clock synchronization.
In order to there is correct time to originate, server obtains the UTC standard time by Internet, and with this UTC time
On the basis of, the time is issued each field data acquiring terminal, so as to calibrate the time of each field data acquiring terminal, realize
Time unification.
Field data acquiring terminal 2 also includes：Clock message receiving processing module, server 1 also include：Clock message is sent out
Send module, time synchronizing module, lock in time sending module；
Clock message sending module be used for data collection station tranmitting data register sync message, in clock sync message in set
There is clock synchronization preset mode；Clock message receiving processing module is used to receive the clock synchronization of clock message sending module transmission
Message, receives data collection station after sync message and works under clock synchronization Setting pattern, while sending response to server
Message, is provided with server sync setting pattern in response message；Time synchronizing module is used to receive after response message, utilizes
SntpClient Java this class calls NTP functions, carries out clock filtering, is obtained by function client.requestTime
Local time stamp, deducts the time zone deviation value at data collection station place, obtains the server sync time；Lock in time sends mould
Block is used to the lock in time of server 1 be sent to field data acquiring terminal, realizes server and the field data acquiring terminal
Time unification.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, identical similar portion reference mutually between each embodiment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (9)
1. a kind of comprehensive early warning of distribution network intelligent and safe and control system, it is characterised in that include：Server and multiple
The field data acquiring terminal being connected by GPRS or fiber optic communication with server；
Field data acquiring terminal is arranged on monitored transformer station or monitored power equipment, and field data acquiring terminal is used
Data message inside the transformer station to being monitored or monitored power equipment is acquired, and the data message that will be gathered
Upload onto the server；
Field data acquiring terminal includes：Processor, low pass filter, signal amplification module, wireless communication module, power supply mould
Block, data acquisition storage module, electric energy meter data acquisition module, quantity of state acquisition module, ac analog acquisition module, history
Data processing module, potential device data acquisition module, supply line's data acquisition module, breaker data acquisition module, every
Leave pass data acquisition module, residual current detection transformer, earthed switch data acquisition module, to be arranged on primary side current mutual
Sensor, primary side voltage transformer, secondary side current mutual inductance component, secondary side mutual induction of voltage component；Primary side current transformer
Real-time Collection primary side three-phase current data are simultaneously transferred to server；Primary side voltage transformer Real-time Collection primary side three-phase electricity
Pressure data are simultaneously transferred to server；Secondary side current mutual inductance component Real-time Collection secondary side three-phase current data are simultaneously transferred to service
Device；Secondary side mutual induction of voltage component Real-time Collection secondary side three-phase voltage data is simultaneously transferred to server；
Electric energy meter data acquisition module be used for by setting check meter day or timing acquisition time interval electric energy meter data are adopted
Collection, storage, and collection electric energy meter data are sent into processor；
Quantity of state acquisition module is used for Real-time Collection low-voltage platform area low tension switch location status, when low tension switch is conjugated, will
Low tension switch displacement information storage, and it is sent to processor；
Ac analog acquisition module is used to be adopted by use requirement predeterminated voltage, electric current, power, power, power factor analog quantity
Collection, measurement voltage, electric current, power, power factor, and with the out-of-limit statistics of voltage monitoring, voltage class of accuracy is 0.5, tool
There is harmonic data to count, harmonic component class of accuracy is 1；
Historical data processing module was used for the data of collection in units of day, in next day zero point history of forming day data, and protected
Nearest data on the 30th are deposited, according to the guick freezing room of setting every with 15min, 30min, 45min, 60min forms all kinds of freezing curve numbers
According to, and nearest 30 days curve datas are preserved, and it is sent to processor；
Potential device data acquisition module is used for the mould of collection site potential device and the controller switching equipment being adapted with potential device
Analog quantity, each side electric current of transformer, voltage, active power, reactive power, coil temperature, oil temperature, and it is sent to processor；
Supply line's data acquisition module is used to gather electric current, active power, the reactive power of supply line；The electricity of bus
Pressure, frequency；The three-phase voltage of supply line, three-phase current, residual voltage, zero-sequence current, and it is sent to processor；
The breaker data acquisition module, disconnecting switch data acquisition module, earthed switch data acquisition module are respectively used to
The switching value of collection site equipment, switching value includes：Circuit breaker position, disconnecting switch, earthed switch position, killer switch position
Put, protection act resultant signal, on the spot/distant place switch positions, breaker operation mechanism abnormal signal, control loop template are believed
Number, protection alarm signal, protection device fault-signal, and be sent to processor；
Secondary side current mutual inductance component includes：The input termination secondary side circuit of current transformer, current transformer, Current Mutual Inductance
First output end of device connects respectively the negative electrode of diode DdL1, the anode of diode DdL2, transport and placing device electrode input end, electric capacity
CdL1 first ends, resistance RdL1, the second output end of current transformer connects respectively the anode of diode DdL1, diode DdL2's
Negative electrode, transport and placing device negative input, the output end of transport and placing device output termination secondary side current mutual inductance component；Secondary side current mutual inductance
The output end of component connects processor by low pass filter；
Secondary side mutual induction of voltage component includes：The input of voltage transformer U1, voltage transformer U1 passes through respectively resistance Rdy1
Secondary side circuit is connect with resistance Rdy2, the first output end of voltage transformer connects respectively the negative electrode of diode Ddy1, diode
The anode of Ddy2, transport and placing device electrode input end, electric capacity Cdy1 first ends, resistance Rdy3 first ends, the second of voltage transformer is defeated
Go out the anode that end meets respectively diode Ddy1, the negative electrode of diode Ddy2, transport and placing device negative input, transport and placing device output end, electricity
Hold the ends of Cdy1 second, the ends of resistance Rdy3 second, the output end of secondary side mutual induction of voltage component connects simultaneously；Secondary side mutual induction of voltage
The output end of component connects processor by low pass filter；
Low pass filter includes：Filter the first electric capacity, the second electric capacity of filtering, the 3rd electric capacity of filtering, the 4th electric capacity of filtering, filtering the
Five electric capacity, filtering first resistor, filtering second resistance, filtering 3rd resistor, the 4th resistance of filtering, the 5th resistance of filtering, filtering
6th resistance, filtered diode one, filtered diode two, filtering transport and placing device one, filtering transport and placing device two；
Filtering first resistor first end, the negative pole of filtered diode one, the positive pole of filtered diode two and filtering second resistance first end
Connection；Filtering first resistor second end, the positive pole of filtered diode one, the negative pole of filtered diode two filters the first electric capacity first end
It is grounded simultaneously；Filtering second resistance second end, filters first the second end of electric capacity, the first end connection of filtering 3rd resistor；Filtering the
Three the second ends of resistance, filter the second electric capacity first end, and the 4th resistance first end of filtering connects simultaneously, filters the 4th resistance second
End, filters the 3rd electric capacity first end, and the filtering electrode input end of transport and placing device one connects simultaneously, the 3rd the second end of electric capacity of filtering ground connection；
The filtering negative input of transport and placing device one, filters the output end of transport and placing device one, filters second the second end of electric capacity, filters the 5th resistance first
End connects simultaneously；Filter the 5th the second end of resistance, filter the 4th electric capacity, the 6th resistance of filtering connects simultaneously, and by filtering the
Four capacity earths；Filter the electrode input end that the 6th resistance connects filtering transport and placing device two；The negative input of filtering transport and placing device two, filter
The output end of ripple transport and placing device two, the 4th electric capacity of filtering connects simultaneously；Filtering transport and placing device one, to connect 5V respectively electric for filtering transport and placing device two
Source；
Power module is electrically connected with city, and power module is used to provide operating voltage to processor by transformation and voltage stabilizing；Power supply mould
Block includes：Power interface, the first voltage stabilizing chip, the second voltage stabilizing chip, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th is electric
Hold, the 5th electric capacity, the 6th electric capacity；The pin of power interface three connects the first electric capacity first end, the first pin of voltage stabilizing chip one；First is steady
Pressure No. two pin of chip connect the 3rd electric capacity first end, the 5th electric capacity first end and 5v output ends；The pin of power interface one connection second
Electric capacity first end, the second pin of voltage stabilizing chip one；First pin of voltage stabilizing chip three connects the 4th electric capacity first end, the 6th electric capacity the
One end and -5v output ends；The pin of power interface two connects first the second end of electric capacity, the first pin of voltage stabilizing chip three, the 3rd electric capacity the
Two ends, the 5th the second end of electric capacity, second the second end of electric capacity, the second pin of voltage stabilizing chip one, the 4th the second end of electric capacity, the 6th electric capacity
Second end and the earth；
Residual current detection transformer is used to detect the leakage current of electrical network, and by the leakage current of detection through signal transacting
Afterwards, transmit to processor；
Processor includes：Leakage current multilevel iudge module, leakage current action setup module, deferred action setup module, electric leakage
Action output module；
Leakage current multilevel iudge module is used to for the leakage current of reception and preset value to be compared judgement, when leakage current it is big
In setting value, and after default delay duration, electric leakage action output module sends action signal to action execution unit；Leakage
Electric current action setup module is used to arrange the rated value of earth leakage protective action；Deferred action setup module is used to arrange earth leakage protective
The delay duration of action；Action execution unit is used for the action signal sent according to electric leakage action output module, completes electric leakage and protects
Protective function；
Processor is used for the data message to receiving and stores to data acquisition storage module, and controls radio communication mold
Block, data message is sent to server；
Server includes：Electric energy meter operation conditions monitoring modular, voltage monitoring module, power-factor monitoring module, switching value prison
Module, limit value setup module, line loss analysis module, apparent energy curve generation module, apparent energy pair when surveying module, school
Than module, data interaction platform, database, data statistic analysis module；
Electric energy meter operation conditions monitoring modular is used for the data message that field data acquiring terminal sends, monitoring electric energy meter operation shape
Condition, monitoring electric energy meter operation conditions includes：Parameters of electric energy meter change, overproof electric energy meter time, electric meter fault information, electric energy are represented
Degree declines, electric energy meter flies away, electric energy meter stops walking, infrared induction record, magnetic induction disturbance records；
Voltage monitoring module is used for being monitored with Network Voltage Deviation, to being counted with electrical network rate of qualified voltage；
Power-factor monitoring module is used to be analyzed system to the power factor of monitoring point by the power factor segmentation limit value for arranging
Meter, monthly power factor gets over cumulative time of the limit value generation in each section to record；
Switching value monitoring modular is used for the panel switches state according to field data acquiring terminal transmission, and monitoring power-supply networks networks is opened
Off status information；
During school module be used for during field data acquiring terminal tranmitting data register school instruct, make field data acquiring terminal gather when
Clock is identical with the crystal oscillator clock of server；
Limit value setup module is used to arrange the voltage and electric current of electric energy meter in monitor area and gets over limit value, power factor segmentation limit value；
Line loss analysis module is used for according to the topological structure of electrical network, daily gathers single-phase, three-phase user and Tai under circuit
The power consumption of area's summary table, by setting up line loss analyzing model, analyzes in real time the active loss of every circuit, more than certain valve
Alerted after value；
Apparent energy contrast module is used for the primary side three-phase electricity electric current according to real-time Transmission, primary side three-phase voltage, secondary side
Three-phase electricity electric current, secondary side three-phase voltage calculates active power, reactive power, and draws apparent energy, makes apparent energy
Curve；
Apparent energy contrast module is used to contrast primary side power information and secondary side power information, carries out Data Comparison and same
One page iso-surface patch informs on a display screen the side power information of user first and second with the presence or absence of use into two apparent energy curves
Electrical anomaly；
Data interaction platform is used to realize exchanging communication between user of service and operation maintenance personnel, and process is tracked to system, and
And the client port that mobile terminal connects is provided, make user of service be connected data interaction using mobile terminal with operation maintenance personnel and put down
Platform；
Platform also provides for power information acquisition system construction specification, standard, acquisition system operation manual, different to FAQs
Often processing method related data sorted out, shown, facilitates user to consult, realize knowledge document management, knowledge collect with instruct,
Frequently asked questions function, with according to problem occur area, problem category, submission time, solution time angularly carry out statistical summaries,
Analysis；
Data statistic analysis module is used for the data for gathering to field data acquiring terminal and sending and combines database storage
Historical data information, based on classification, statistics, the result for calculating and analyzing, there is provided information inquiry, report customization and analysis report shape
Into etc. a series of functions, to support safety at power cut to search, the integrated application in terms of reliability data statistics；All kinds of numbers of power distribution network
According to including real time data, non-real-time data and near-realtime data；Specific functions of modules includes：The reason for distribution network failure, is sorted out
Analysis；The retrieval and analysis of traffic control plan；Dispatching is counted and classified；Power failure job classification and job evaluation；For
Electric fail-safe analysis and statistics；The integrated application that other application family needs and exclusively carries out.
2. the comprehensive early warning of distribution network intelligent and safe according to claim 1 and control system, it is characterised in that
Processor is connected by signal amplification module with wireless communication module, and signal amplification module is used for the number for sending processor
It is believed that breath is amplified, signal amplification module includes：Resistance Rsy2, resistance Rsy3, resistance Rsy4, electric capacity Csy1, electric capacity Csy2,
Diode Dsy1, diode Dsy2, transport and placing device LMsy；
The input of signal amplification module connects the electrode input end of transport and placing device LMsy, the negative pole of transport and placing device LMsy by resistance Rsy2
Input is grounded by resistance Rsy3, and by resistance Rsy4 the output end of signal amplification module is connect；Diode Dsy1, diode
Dsy2 is connected in series, and the negative electrode of diode Dsy1 connects power supply, the plus earth of diode Dsy2；Diode Dsy1, diode
The output end of the indirect signal amplification module of Dsy2, the output end of transport and placing device LMsy.
3. the comprehensive early warning of distribution network intelligent and safe according to claim 1 and control system, it is characterised in that
Field data acquiring terminal includes：Clock circuit；
The clock circuit is used for by the clock setting to processor, completes the setting of processor clock；Clock circuit and place
Reason device connection, in the rising edge of the next SULK clocks after control instruction character input, data are written into, and data are from low level 0
Start input processor；The trailing edge read-out processor data of the next pulse after the control instruction word immediately following 8, read
From low level 0 to high-order 7 during data；XI, X2 pin connects crystal oscillator, and for processor timely pulse is provided；
The clock circuit includes：Clock chip, quartz oscillation module, clock amplification module, clock capacitance Csz1, clock capacitance
Csz2, clock resistance Rsz1, clock resistance Rsz2；
The clock chip is set in the clock chip with the second, point, when, the date is clock data, obtains and repaiies by reading or writing
Change clock data；There is the static RAM of 114 bytes inside the clock chip, set temporarily by serial port for storage system
Fixed specific character lattice codebook；The clock amplification module, clock capacitance Csz1, clock resistance Rsz1 composition clocks amplify electricity
Road；The clock capacitance Csz2, clock resistance Rsz2 constitute filter circuit.
4. the comprehensive early warning of distribution network intelligent and safe according to claim 1 and control system, it is characterised in that
Field data acquiring terminal also includes：Data generation module, Digital Signature module, ciphertext generation module, encryption session are close
Key generation module, encryption data sending module；
Data generation module is used to generate message summary to sent data message using the default aes algorithm of server；
Digital Signature module is used for using default public key cryptography mechanism ELGamal of server using the private key of server to being produced
Raw message summary is digitally signed；
Ciphertext generation module is used to carry out AES encryption to data message using the default session key of server, obtains ciphertext；
Encrypted session key generation module is used for the default public key cryptography mechanism ELGamal AES of server and using clothes
The public key encryption session key of business device, the data communication session key after being encrypted；
Encryption data sending module is used to for the ciphertext and session key after the digital signature of generation, encryption to send jointly to service
Device；
Server also includes：Encrypted data reception module, ciphertext deciphering module, summary recovery module, summary deciphering module, summary
Contrast module；
Encrypted data reception module is used to receive the data communication meeting that field data acquiring terminal sends by communication network
Words key, the session of the private key pair encryption of field data acquiring terminal is utilized using public key cryptography mechanism ELGamal decipherment algorithm
Key is decrypted, and judges that whether session key matches with default session key after decryption, if matched, receives
Ciphertext after digital signature and encryption；
Ciphertext deciphering module is used to be decrypted ciphertext using the session key for decrypting using default aes algorithm, obtains
To data message；
It is general that summary generation module is used for message after the data message generation for decrypting ciphertext deciphering module using default aes algorithm
Will；
Summary deciphering module is used for the public affairs sent using field data acquiring terminal using default public key cryptography mechanism ELGamal
Key is decrypted the digital signature for receiving, and obtains the message summary of field data acquiring terminal；
Summary judge module is used for message summary and the summary obtained to summary deciphering module using the default aes algorithm of server
The rear message summary that generation module is generated carries out contrast judgement, and the message summary that such as summary deciphering module is obtained generates mould with summary
The rear message summary that block is generated is identical, then be judged as that data receiver successfully shows normally, if disappearing of obtaining of summary deciphering module
Breath summary is differed with the rear message summary that summary generation module is generated, then be judged as improper data, shows abnormal.
5. the comprehensive early warning of distribution network intelligent and safe according to claim 1 and control system, it is characterised in that
Field data acquiring terminal also includes：Phase electro-detection module；Phase electro-detection module is used for whether detecting secondary side three-phase electricity
Phase shortage, and when there is phase shortage, phase shortage information is sent to processor；
Phase electro-detection module includes：A phase electro-detections end, B phase electro-detections end, C phase electro-detections end, resistance R1, resistance R2, resistance
R3, resistance R4, resistance R5, resistance R6, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, diode D1, two
Pole pipe D2, diode D3, photoisolator；
A phase electro-detection ends connect photoisolator input by resistance R1, diode D1, resistance R2；
B phase electro-detection ends connect photoisolator input by resistance R3, diode D2, resistance R4；
C phase electro-detection ends connect photoisolator input by resistance R5, diode D3, resistance R6；
Photoisolator be provided with A phase electro-detection ends relative to A phase electro-detection output ends, with B phase electro-detection ends relative to B
Phase electro-detection output end, with C phase electro-detection ends relative to C phase electro-detection output ends.
6. the comprehensive early warning of distribution network intelligent and safe according to claim 1 and control system, it is characterised in that
Also include：The market demand terminal being connected with server communication；
Market demand terminal includes：Camera, recording module, d GPS locating module, USB interface, identification module, data storage
Storing module, data interaction module；
D GPS locating module is used for user when using market demand terminal, carries out position positioning；
Data interaction module is used to make user when scene is patrolled and examined, and reports patrol record, patrols and examines result, and obtains clothes
The field equipment data information of business device storage；
Authentication module includes：ID card reader；
ID card reader is adapted with fingerprint capturer；
ID card reader is provided with formation-decoding module, and fingerprint capturer is by fingerprint collecting program and data processing module
It is connected；Identity data in resident identification card decodes mould by brush card program transportation to the information in ID card reader
Block；Formation-decoding module is connected respectively with panel computer and data processing module；
Market demand terminal is provided with ID card information data-interface, fingerprint sensor interface, fingerprint algorithm module, fingerprint algorithm
Protection module；
Electrical network detection means is built-in with the close algoritic module of state, canonical algorithm module；The close algoritic module of state for support SM1, SM2,
The module of the close algorithm fingerprint algorithm of SM3, SMS4, SM6, SSF33, SCB2 state；Canonical algorithm module for support RSA, ECC, AES,
The module of DES/3DES, SHA international standard algorithm.
7. the comprehensive early warning of distribution network intelligent and safe according to claim 6 and control system, it is characterised in that
Market demand terminal was additionally operable to before the scene of carrying out is patrolled and examined, and user is downloaded existing using market demand terminal from server
Field primary data to be maked an inspection tour or last time patrol and examine result, and are stored in the data storage module of market demand terminal；Carrying out now
When field electricity consumption is patrolled and examined, according to onsite user's situation, live power equipment is recorded in market demand terminal patrols and examines result, with reference to
The GPS location function of mobile terminal is maked an inspection tour, in real time the geographical position of the geographical location information during power utility check of positioning scene or user
Confidence ceases；
After end is patrolled and examined, the data message that described user has gathered market demand terminal to server is uploaded, and realizes number
According to the data exchange between application terminal and server, and update server internal database information updating.
8. the comprehensive early warning of distribution network intelligent and safe according to claim 1 and control system, it is characterised in that
Field data acquiring terminal includes：Line feed terminals acquisition control unit, distribution transformer terminals acquisition control unit, data terminal are adopted
Collection control unit, branch line malfunctioning module；
Line feed terminals acquisition control unit, distribution transformer terminals acquisition control unit, data terminal acquisition control unit are to electric power system
On switching station, ring main unit, switchgear house, box change, on-pole switch take remote measurement information, and the electric current feelings based on different telemetry stations
Condition carries out fault location, isolates and restore electricity；
Branch line malfunctioning module is used for branched line and is switched using the quick segmentation with earth fault processing function, when branch point
When circuit occurs singlephase earth fault in section switch region, the branch segment switch is automatic after delay judgement is permanent fault
Separating brake, directly cuts off failure；When circuit occurs phase fault in branch segment switch region, such as branch segment switch is using disconnected
Road device, on the spot tripping operation cuts off failure；On-load switch, higher level's switch protection breaking, customer segment is such as adopted to switch in circuit dead electricity
Separating brake and locking afterwards, after higher level's switch overlaps, adjacent lines restores electricity, and faulty line is isolated；Quick segmentation switch is installed
In high voltage electric family and the branched line that operating load is larger, fault rate is high；Overhead transmission line and cable run are respectively adopted quickly
Block switch.
9. the comprehensive early warning of distribution network intelligent and safe according to claim 1 and control system, it is characterised in that
Field data acquiring terminal also includes：Clock message receiving processing module,
Server also includes：Clock message sending module, time synchronizing module, lock in time sending module；
Clock message sending module is used for data collection station tranmitting data register sync message, in clock sync message in when being provided with
Clock synchronization preset mode；
Clock message receiving processing module is used to receive the clock sync message of clock message sending module transmission, receives synchronous report
Data collection station works under clock synchronization Setting pattern after text, while response message is sent to server, in response message
It is provided with server sync setting pattern；
Time synchronizing module is used to receive after response message, and using SntpClient Java, this class calls NTP functions,
Clock filtering is carried out, local time stamp is obtained by function client.requestTime, deduct data collection station place
Time zone deviation value, obtains the server sync time；
Lock in time sending module is used to the server sync time be sent to field data acquiring terminal, realizes server and is somebody's turn to do
Field data acquiring terminal time unification.
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| CN115063052A (en) * | 2022-08-16 | 2022-09-16 | 南方电网数字电网研究院有限公司 | Electric energy metering chip-based electric power data processing method and computer equipment |
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