CN109257263A - A kind of site protective device data transmission method based on dual-ring network - Google Patents
A kind of site protective device data transmission method based on dual-ring network Download PDFInfo
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- CN109257263A CN109257263A CN201811199667.3A CN201811199667A CN109257263A CN 109257263 A CN109257263 A CN 109257263A CN 201811199667 A CN201811199667 A CN 201811199667A CN 109257263 A CN109257263 A CN 109257263A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
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Abstract
Two or more site protective device handsets are formed dual-ring network by the present invention relates to a kind of site protective device data transmission method based on dual-ring network；Each estrade machine acquires external analog amount signal respectively, is converted into digital quantity, encoded, encode after the completion of transmit data in looped network；The handset data frame not received is judged whether there is, and local data and looped network transmission Data Integration are subjected to framing；Data frame is sent to CPU management 1 after completion framing and completes its related service, protection CPU2 is absorbed in the operation of relay protective scheme；Every estrade machine obtains the protection start code of other handsets, determines whether to carry out protection act by the comparison relationship between handset start code and makes protection exit.Present invention reduces CPU type selecting costs, improve the reliability of protection act, and real-time can satisfy completely, while reliability is higher.
Description
Technical field
The invention belongs to system for distribution network of power fields of automation technology, and in particular to a kind of site guarantor based on dual-ring network
Protection unit data transmission method.
Background technique
With " unification of three nets " site scheme implement, the performance requirement of site protective device greatly increases, with
Traditional protective device is compared, site protective device integrated level is higher, reliability requirement is stronger, response speed faster.Therewith
Incident is that data volume increases, data processing time increases, and the increase of looped network handset number leads to the number with CPU architecture
It is substantially improved according to the load of processing module.
Current site protective device is mostly with single-unit operation, using double AD data (i.e. analog quantitys of double channels acquisition
Data such as electric current, voltage) processing mode realize defencive function logic, be unable to satisfy site protective device big data operation with
And state tying between the protective device handset of site requirement.
Using LVDS between the dual processors (protection starting CPU and protection act CPU) for the site protective device setting having at present
High-speed-differential bus interacts information, to improve reliability.This way is for distributed local protective device, and every
Handset production cost is all very high, does not accomplish being completely independent for hardware.
Current site protective device is because its CPU type selecting cost limits, and dominant frequency is relatively low, this is resulted in number
According to the increase of amount, CPU computing load be increased dramatically, its reliability reduces.
Summary of the invention
The object of the present invention is to provide a kind of site protective device data transmission method based on dual-ring network, this method root
Handset operating status in state and handset internal indicator identification looped network is put into according to site protective device handset, passes through data plan
Slightly scheme realize data selectivity transmission, can while guaranteeing site protective device operational reliability, reduction on the spot
Change the load of protective device, improve response speed, increase protection act reliability, reduces CPU type selecting cost.The present invention is used
Technical solution it is as follows:
A kind of site protective device data transmission method based on dual-ring network, comprising the following steps:
Two or more site protective device handsets are formed dual-ring network by step 1；
Each estrade machine of step 2, site protective device acquires external analog amount signal respectively, is converted into digital quantity, and point
Not Zuo Wei local data and looped network transmit data, then encoded, encode after the completion of transmit data in looped network；
Each estrade machine of step 3, site protective device receive respectively other handsets by looped network be transmitted through come looped network transmit
Data frame judges whether there is the handset data frame not received, and local data and looped network transmission Data Integration is carried out framing；
Step 4 completes that data frame is sent to CPU management 1 after framing, and CPU management 1 is according to the information of all initial data
Its related service is completed, protection CPU2 is absorbed in the operation of relay protective scheme；
Step 5, every estrade machine obtain the protection start code of other handsets, by the comparison relationship between handset start code come
Determine whether to carry out protection act and makes protection exit.
Preferably, the concrete operation method of step 2 and steps are as follows:
Data collecting module collected external analog amount signal in every estrade machine is protected by analog-to-digital conversion as site
The digital quantity that device needs, then the data can flow to data fusion module and looped network transmission data transmission module, flow direction respectively
For the data of data fusion module as local data, the data for flowing to looped network transmission data transmission module transmit number as looped network
According to；
The publicly-owned module of looped network transmitted data protocol is compiled according to the publicly-owned means suitable of Ethernet protocol and looped network agreement
Code, the privately owned module of looped network transmitted data protocol is producer's internal custom field；
Looped network transmission data transmit-receive module transmits data in looped network after the completion of data encoding.
Preferably, the field of the privately owned module of looped network transmitted data protocol increases producer's internal indicator mark, ring
Net guard mode mark and unit state mark, producer's internal indicator mark are used to guarantee the consistent of protective device in looped network
Property, prevent the handset for occurring multiple producers in looped network；Looped network protection Status Flag is for mutually passing the guarantor in looped network between each handset
Protective function state, protection act mark make mutually to pass real-time guard information between handset；Unit state mark is between mutually biography handset
Real time monitoring information.
Preferably, the specific method that looped network transmission data transmit-receive module transmits data in looped network is:
Looped network transmits data transmit-receive module according to mono- data packet of 250us parallel to two mouths of looped network: forward direction sends mouth A
It is sent simultaneously with the reversed mouth B that sends, looped network transmission data transmit-receive module also has looped network transmission data packet forwarding capability, when from one
When a looped network mouth forward direction transmission mouth A receives the data packet of non-handset, looped network transmits data transmit-receive module can be from looped network mouth
The reversed looped network transmission data packet for sending mouth B forwarding and receiving.
Preferably, the specific method of step 3 is:
In every estrade machine looped network transmission data transmit-receive module receive other handsets by looped network be transmitted through come looped network transmission
Data frame judges whether there is the handset data frame not received according to the data frame being an actually-received in receive process, when not
When receiving the looped network transmitting data frame of some handset, being sent to upper layer in the looped network reception state of the handset；
Looped network transmits data transmit-receive module and data and looped network the alarm mark of other handsets received is sent to looped network
The publicly-owned module of transmitted data protocol and the privately owned module of looped network transmitted data protocol are decoded, and are then conveyed data to data and are melted
Close processing module；
Data Fusion module is on local data and looped network the transmission data transmission module sent on data acquisition module
The looped network transmission Data Integration sent carries out framing.
Preferably, specific step is as follows for looped network transmission Data Integration progress framing:
Step 3.1 obtains handset investment state；
Step 3.2 obtains looped network transmission data producer inner mark；
Step 3.3 judges whether looped network state is intact, for single handset, can receive other handsets in looped network
Partial data be that looped network is intact because looped network is Double-direction double-ring, one of direction disconnects that not influence looped network normal
State, if, turn in next step, if not, relay protective scheme is latched and goes to step 3.7；
Step 3.4 judges whether this handset is that odd number in looped network handset exists, if, turn in next step, if not, to protecting
Shield CPU2 transmission AD2 data simultaneously go to step 3.6；
Step 3.5 transmits AD1 data to protection CPU2；
Step 3.6, according to collected analog data, relay protective scheme module is handled by analog data analysis, is obtained
The tripping or combined floodgate logic of protection electric device out；
Step 3.7, protective emblem/Status Flag are sent to looped network, data group frame end.
Preferably, the detailed method of operation of step 4 and steps are as follows:
After Data Fusion module in every estrade machine completes framing, data frame is sent to by rapid data interface
CPU management 1, CPU management 1 can possess the information of all initial data, according to these data can complete its relevant 61850
With MMS related service, the load of protection CPU2 is reduced, enables the operation for protecting CPU2 to be absorbed in relay protective scheme；
State that CPU management 1 is put by data transmission module according to handset, producer defines mark and the data of looped network connect
Receipts state judges effective handset data in looped network.
Preferably, the detailed method of operation of step 5 and steps are as follows:
When the protection CPU2 of every estrade machine carries out relay protective scheme by the single AD data obtained, relay protective scheme is generated
Protection act information is transmitted in looped network by way of protecting start code quickly through looped network transmission data transmission module, at this time
Every estrade machine can obtain the protection start code of other handsets, be determined whether by the comparison relationship between handset start code
It carries out protection act and makes protection exit.After protecting CPU2 to carry out relay protective scheme, by cpu data transmission module guarantor
The relevant information that shield correlation function generates sends the cpu data transmission module of CPU management 1 to, completes relevant 61850 and MMS
Business.
Preferably, by the specific networking of two or more site protective device handset composition dual-ring networks described in step 1
Mode are as follows:
Each site protective device has 4 completely self-contained looped network mouths, and 1 mouthful and 2 mouthfuls of looped network is used to transmit AD1 number
According to, 3 mouthfuls of looped network and 4 port transmission AD2 data of looped network, 2 mouthfuls of looped network of 1 mouthful of looped network connection handset 2 of handset 1, the looped network 1 of handset 2
Mouthful connection 2 mouthfuls of looped network of handset 3, and so on, 2 mouthfuls of looped network of 1 mouthful of looped network connection handset 1 of handset 3,3 mouthfuls of looped network and looped network 4
Mouth forms closed loop referring to 1 and 2 mouthful of connection.Do not need other means, by the ring interfaces between device, that is, gigabit network interface according to
Looped network agreement framing is realized.
Beneficial effects of the present invention:
1) requirement that site protection can be realized by the scheme of type selecting list CPU, reduces CPU type selecting cost；
2) improving the reliability of protection act in looped network between handset by way of the verifying mutually of protection act, and with
The handset quantity that comes into operation in looped network increase, Reliability of Microprocessor increases；
3) cpu load that can reduce handset by the data transmission policies of intercore communication, can compared with traditional approach
A half load is reduced, thus limitation when further decreasing CPU type selecting.
4) realize that double AD relatively improve reliability using more handsets, there is the support of dual gigabit ethernet in outside, in real time
Property can satisfy completely.
5) hardware is completely independent, low to hardware resource requirements, and hardware cost is also low, while reliability is higher.
Detailed description of the invention
Fig. 1 is the dual-ring network transmission data transmission schematic diagram of four estrade machines；
Fig. 2 is the data communication schematic diagram between separate unit handset CPU core；
Fig. 3 is the data framing transmission logic flow chart between separate unit handset CPU core.
Specific embodiment
With reference to the accompanying drawing, embodiments of the present invention are further elaborated with.When implementing the present invention, at least need
Two or more site protective device handsets realize bicyclic networking, and with the increase of the handset quantity in looped network, handset
Reliability of Microprocessor be consequently increased.
A kind of site protective device data transmission method based on dual-ring network, comprising the following steps:
Two or more site protective device handsets are formed dual-ring network by step 1.
Specific networking mode are as follows: each site protective device has 4 completely self-contained looped network mouths, 1 mouthful of looped network and 2
Mouth is used to transmit AD1 data, 3 mouthfuls of looped network and 4 port transmission AD2 data of looped network, the looped network 2 of 1 mouthful of looped network connection handset 2 of handset 1
Mouthful, 2 mouthfuls of looped network of 1 mouthful of looped network connection handset 3 of handset 2, and so on, the looped network 2 of 1 mouthful of looped network connection handset 1 of handset 3
Mouthful, the 4 mouthfuls of reference 1 and 2 mouthful connections of 3 mouthfuls of looped network and looped network form closed loop.Other means are not needed, are connect by the looped network between device
Mouth is that gigabit network interface is realized according to looped network agreement framing.
In the present embodiment, it is illustrated by taking four estrade machines of the site protective device based on dual-ring network as an example.Such as Fig. 1 institute
Show, is the dual-ring network transmission data transmission schematic diagram of four estrade machine of site protective device, network topology structure is using two-way double
Loop network, one be protection ring, another be starting ring, protection ring and starting ring be bidirectional data transfers, the two passes respectively
Defeated AD1 and AD2 two paths of data, and start ring and protection ring as the independent bidirectional redundancy ring of physics, there are zero-time recovery characteristics.
The data format transmitted in looped network is that the ethernet frame of standard adds looped network feature field, wherein the content transmitted mainly includes simulation
Amount, switching value, the privately owned custom field of self-test information and producer.It is indicated respectively with the arrow of two different directions respectively in figure
Start the bidirectional data transfers of ring and protection ring.
Step 2, four estrade machine of site protective device acquire external analog amount signal respectively, are converted into digital quantity, and point
Not Zuo Wei local data and looped network transmit data, then encoded, encode after the completion of transmit data in looped network.It is detailed
Operating method and steps are as follows:
Data acquisition module 1 in every estrade machine includes analog quantity and switching value by acquiring external analog amount signal, is led to
Crossing analog-to-digital conversion becomes the digital quantity that site protective device needs, and then the data can flow to 6 He of data fusion module respectively
Looped network transmits data transmission module 2.The data of data fusion module 6 are wherein flowed to as local data, flow to looped network transmission number
Data are transmitted as looped network according to the data of transmission module 2.The publicly-owned module 3 of looped network transmitted data protocol is according to Ethernet protocol and ring
The publicly-owned means suitable of fidonetFido is encoded.The privately owned module 4 of looped network transmitted data protocol is producer's internal custom field, this
Producer's internal indicator mark, looped network protection Status Flag and unit state mark are increased in this field in invention.In producer
Portion's mark and label is used to guarantee the consistency of protective device in looped network, prevents the handset for occurring multiple producers in looped network.Due to ring
Behavior is consistent between handset needs to guarantee handset in netting, the having differences property of son of multiple producers, and producer's inner mark can be improved
Consistency between handset improves protection safety.Looped network protection Status Flag is for mutually passing the guarantor in looped network between each handset
The information such as protective function state, protection act mark can make mutually to pass real-time guard information between handset.Unit state mark is used for
Mutually pass real time monitoring information such as the handset blocking, handset state of temperature, voltage status between handset.After the completion of data encoding
Looped network transmission data transmit-receive module 5 transmits data in looped network, and looped network transmits data transmit-receive module 5 according to mono- number of 250us
According to packet parallel to two mouths of looped network: forward direction sends mouth A and the reversed mouth B that sends is sent simultaneously.Looped network transmits data transmit-receive simultaneously
Module 5 also there is looped network to transmit data packet forwarding capability, receive non-handset when sending mouth A from a looped network mouth forward direction
When data packet, looped network transmission data transmit-receive module 5 can reversely send the looped network that mouth B forwarding receives from looped network mouth and transmit data
Packet.
Step 3, four estrade machine of site protective device receive respectively other handsets by looped network be transmitted through come looped network transmit
Data frame judges whether there is the handset data frame not received, and local data and looped network transmission Data Integration is carried out framing.
Detailed operating method and steps are as follows:
In every estrade machine looped network transmission data transmit-receive module 5 receive other handsets by looped network be transmitted through come looped network transmission
Data frame can judge whether there is the handset data frame not received according to the data frame being an actually-received in receive process, when
It, can be being sent to upper layer in the looped network reception state of the handset when not receiving the looped network transmitting data frame of some handset.Due to looped network
Two-way and distinguishing protection ring and starting ring, then looped network alarm mark come to four group marks.Looped network transmits data transmit-receive mould
Data and looped network the alarm mark of 5 other handsets received of block are sent to the publicly-owned module 2 of looped network transmitted data protocol and ring
The privately owned module 3 of net transmitted data protocol is decoded.Then Data Fusion module 6 is conveyed data to.At data fusion
The looped network sent on local data and looped network the transmission data transmission module 2 sent on data acquisition module 1 is transmitted data by reason module 6
Integration carries out framing, as shown in figure 3, being the data framing transmission logic flow chart between separate unit handset CPU core.
Specific step is as follows for data framing transmission in every estrade machine:
Step 3.1 obtains handset investment state；
Step 3.2 obtains looped network transmission data producer inner mark；
Step 3.3 judges whether looped network state is intact, for single handset, can receive other handsets in looped network
Partial data be that looped network is intact because looped network is Double-direction double-ring, one of direction disconnects that not influence looped network normal
State, if, turn in next step, if not, relay protective scheme is latched and goes to step 3.7；
Step 3.4 judges whether this handset is that odd number in looped network handset exists, if, turn in next step, if not, to protecting
Shield CPU2 transmission AD2 data simultaneously go to step 3.6；
Step 3.5 transmits AD1 data to protection CPU2；
Step 3.6, according to collected analog data, relay protective scheme module is handled by analog data analysis, is obtained
The tripping or combined floodgate logic of protection electric device out；
Step 3.7, protective emblem/Status Flag are sent to looped network, data group frame end.
Such framing mode framing structure is simple, and protective emblem and Status Flag timeliness are high, is passed by looped network 250us
The analog data sent is able to maintain data and state consistency.
Step 4 completes that data frame is sent to CPU management 1 after framing, and CPU management 1 is according to the information of all initial data
Its related service is completed, the load of protection CPU2 is reduced, makes the operation for protecting CPU2 to be absorbed in relay protective scheme.Detailed operation side
Method and steps are as follows:
After Data Fusion module 6 in every estrade machine completes framing, data frame is sent by rapid data interface
To CPU management 1.CPU management 1 is mainly responsible for lower with real-times relative requirements such as 61850, MMS but interacts more data volume
Bigger business.By the way that complete data are given to CPU management 1, CPU management 1 can possess the information of all initial data,
The related services such as its relevant 61850 and MMS can be completed according to these data.It can reduce the load of protection CPU2 in this way,
Enable the operation for protecting CPU2 to be absorbed in relay protective scheme.
State that CPU management 1 is put by data transmission module 8 according to handset, producer define the data of mark and looped network
Reception state judges effective handset data in looped network.The discriminant approach of effective handset is other handsets of looped network investment, this
Handset can receive in the data of data frame i.e. four looped network mouths of Double-direction double-ring net of at least one ring of investment handset
Disconnected alarm is not 1 simultaneously, then by judging that the sequence of the effective handset in place of this handset protects CPU2 mould to select to pass to
The AD1 data of analog quantity or the data of AD2.
The principle of concrete example illustratively step 4 below:
Analog quantity quantity is X, and CPU computational load is Y, and handset number is N (X, Y, N are the integer greater than 0).Traditional
Relay protective scheme is that double AD calculate calculative analog quantity as N*X*2, then the load of every estrade machine protection CPU2 is 2*N*X*Y.
Switched in real time in the present invention according to the calculation amount that handset puts into state and handset number protection CPU2, described below:
When in looped network there are when N=1 estrade machine, that is, list machine operation when, CPU management 1 need this handset analog quantity AD1
Protection CPU2 is given with 2*X transmission or analog signal of AD2 work, protecting the computational load of CPU2 at this time is 2*N.
When, there are when N=2 estrade machine, handset number is respectively a1 and a2, and a1 is less than a2 in looped network.A1 handset is this at this time
The total N*X transmission or analog signal of the AD1 data of handset AD1 data and a2 handset gives protection CPU2, and the CPU2's of a1 handset protection at this time is negative
Carrying is N*X*Y；A2 handset is the total N*X transmission or analog signal of AD2 data of this handset AD2 data and a1 handset to protection at this time
The load of CPU2, the CPU2 of a2 handset protection at this time are N*X*Y；
When, there are when N=5 estrade machine, handset number is respectively a1, a2, a3, a4, a5, a1 < a2 < a3 < a4 < a5 in looped network.
A1 handset, a3 handset, a5 handset can be the total N*X analog quantitys of AD1 data of the AD1 of this handset and other handsets at this time
Send protection CPU2 to, the load of three estrade machines is N*X*Y；At this time a2 handset and a4 handset, the AD2 of this handset and other sons
The total N*X transmission or analog signal of the AD2 data of machine gives protection CPU2, and the load of two estrade machines is N*X*Y.
In the above manner it can be seen that data transfer mode of the invention can reduce the data transmission of half, protect simultaneously
The data calculation amount of shield CPU2 equally reduces half, can reduce the load of protection CPU2.
As shown in Fig. 2, being the data communication schematic diagram between separate unit handset CPU core, it can more intuitively reflect step in figure
The content of rapid 2-4.
Step 5, every estrade machine obtain the protection start code of other handsets, by the comparison relationship between handset start code come
Determine whether to carry out protection act and makes protection exit.Detailed operating method and steps are as follows:
As described in above-mentioned steps 4, the position according to handset number in looped network where this handset is different, the protection of this handset
CPU2 analog data obtained is also different, and some is AD2 data for AD1 data, some.The method guarantees different in looped network
Handset protection CPU2 AD data AD1 and AD2 data obtained exist simultaneously.When the protection CPU2 of every estrade machine passes through acquisition
Single AD data carry out relay protective scheme when, relay protective scheme generate protection act information it is quick by way of protecting start code
It transmits data transmission module 2 by looped network to be transmitted in looped network, the protection that every estrade machine can obtain other handsets at this time is opened
Activity code is determined whether to carry out protection act by the comparison relationship between handset start code and makes protection exit.Lead at this time
The mode of excessive handset independent protective logical consistency can be improved the protection reliability of protection, simultaneously because multiple handsets are adopted
It is the data of different AD, can realizes that the comparison of double AD further increases protection reliability well.With looped network neutron
The increase of machine quantity, can greatly avoid because CPU it is faulty caused by maloperation situation generation.
After protecting CPU2 to carry out relay protective scheme, protection correlation function is generated by cpu data transmission module 7 phase
The cpu data transmission module 7 that information sends CPU management 1 to is closed, relevant 61850 and MMS business are completed, to improve management
Independence between CPU1 and protection CPU2.
Claims (9)
1. a kind of site protective device data transmission method based on dual-ring network, which comprises the following steps:
Two or more site protective device handsets are formed dual-ring network by step 1；
Each estrade machine of step 2, site protective device acquires external analog amount signal respectively, is converted into digital quantity, and makees respectively
Transmit data for local data and looped network, then encoded, encode after the completion of transmit data in looped network；
Each estrade machine of step 3, site protective device receive respectively other handsets by looped network be transmitted through come looped network transmit data
Frame judges whether there is the handset data frame not received, and local data and looped network transmission Data Integration is carried out framing；
Data frame is sent to CPU management 1 after step 4, completion framing, CPU management 1 is completed according to the information of all initial data
Its related service, protection CPU2 are absorbed in the operation of relay protective scheme；
Step 5, every estrade machine obtain the protection start code of other handsets, are determined by the comparison relationship between handset start code
Whether carry out protection act and makes protection exit.
2. a kind of site protective device data transmission method based on dual-ring network according to claim 1, feature exist
In, the concrete operation method of step 2 and steps are as follows:
Data acquisition module (1) in every estrade machine acquires external analog amount signal, is protected by analog-to-digital conversion as site
The digital quantity that device needs, then the data can flow to data fusion module (6) and looped network transmission data transmission module respectively
(2), the data of data fusion module (6) are flowed to as local data, the data for flowing to looped network transmission data transmission module (2) are made
Data are transmitted for looped network；
The publicly-owned module of looped network transmitted data protocol (3) is compiled according to the publicly-owned means suitable of Ethernet protocol and looped network agreement
Code, the privately owned module of looped network transmitted data protocol (4) is producer's internal custom field；
Looped network transmission data transmit-receive module (5) transmits data in looped network after the completion of data encoding.
3. a kind of site protective device data transmission method based on dual-ring network according to claim 2, feature exist
In the field of the privately owned module of looped network transmitted data protocol (4) increases producer's internal indicator mark, looped network protection state
Mark and unit state mark, producer's internal indicator mark are used to guarantee the consistency of protective device in looped network, prevent looped network
The interior handset for multiple producers occur；Looped network protection Status Flag for mutually pass defencive function state in looped network between each handset,
Protection act mark makes mutually to pass real-time guard information between handset；Unit state mark is for mutually passing the real time monitoring between handset
Information.
4. a kind of site protective device data transmission method based on dual-ring network according to claim 2, feature exist
In the specific method that looped network transmission data transmit-receive module (5) transmits data in looped network is:
Looped network transmits data transmit-receive module (5) according to mono- data packet of 250us parallel to two mouths of looped network: forward direction sends mouth A
It being sent simultaneously with the reversed mouth B that sends, looped network, which transmits data transmit-receive module (5), also there is looped network to transmit data packet forwarding capability, when
When sending mouth A from looped network mouth forward direction and receiving the data packet of non-handset, looped network transmits data transmit-receive module (5) can be from
Looped network mouth reversely sends the looped network transmission data packet that mouth B forwarding receives.
5. a kind of site protective device data transmission method based on dual-ring network according to claim 2, feature exist
In the specific method of step 3 is:
In every estrade machine looped network transmission data transmit-receive module (5) receive other handsets by looped network be transmitted through come looped network transmission number
According to frame, the handset data frame not received is judged whether there is according to the data frame being an actually-received in receive process, when not receiving
To some handset looped network transmitting data frame when, being sent to upper layer in the looped network reception state of the handset；
Looped network transmits data transmit-receive module (5) and data and looped network the alarm mark of other handsets received is sent to looped network biography
The publicly-owned module of transmission of data agreement (2) and the privately owned module of looped network transmitted data protocol (3) are decoded, and then convey data to number
According to fusion treatment module (6)；
The local data and looped network sent on data acquisition module (1) is transmitted data transmission module by Data Fusion module (6)
(2) the looped network transmission Data Integration sent on carries out framing.
6. a kind of site protective device data transmission method based on dual-ring network according to claim 5, feature exist
In the looped network transmission Data Integration carries out framing, and specific step is as follows:
Step 3.1 obtains handset investment state；
Step 3.2 obtains looped network transmission data producer inner mark；
Step 3.3 judges whether looped network state is intact, for single handset, can receive the complete of other handsets in looped network
Entire data is that looped network is intact, because looped network is Double-direction double-ring, one of direction, which disconnects, does not influence looped network normal condition,
If, turn in next step, if not, relay protective scheme is latched and goes to step 3.7；
Step 3.4 judges whether this handset is that odd number in looped network handset exists, if, turn in next step, if not, to protection
CPU2 transmission AD2 data simultaneously go to step 3.6；
Step 3.5 transmits AD1 data to protection CPU2；
Step 3.6, according to collected analog data, relay protective scheme module is handled by analog data analysis, is obtained
Protect the tripping or combined floodgate logic of electric device；
Step 3.7, protective emblem/Status Flag are sent to looped network, data group frame end.
7. a kind of site protective device data transmission method based on dual-ring network according to claim 1, feature exist
In, the detailed method of operation of step 4 and steps are as follows:
After Data Fusion module (6) in every estrade machine completes framing, data frame is sent to by rapid data interface
CPU management 1, CPU management 1 can possess the information of all initial data, according to these data can complete its relevant 61850
With MMS related service, the load of protection CPU2 is reduced, enables the operation for protecting CPU2 to be absorbed in relay protective scheme；
The data that state that CPU management 1 is put by data transmission module (8) according to handset, producer define mark and looped network connect
Receipts state judges effective handset data in looped network.
8. a kind of site protective device data transmission method based on dual-ring network according to claim 1, feature exist
In, the detailed method of operation of step 5 and steps are as follows:
When the protection CPU2 of every estrade machine carries out relay protective scheme by the single AD data obtained, the protection of relay protective scheme generation
Action message is transmitted in looped network by way of protecting start code quickly through looped network transmission data transmission module (2), at this time
Every estrade machine can obtain the protection start code of other handsets, be determined whether by the comparison relationship between handset start code
It carries out protection act and makes protection exit.After protecting CPU2 to carry out relay protective scheme, pass through cpu data transmission module (7)
The relevant information that protection correlation function generates is sent to the cpu data transmission module (7) of CPU management 1, completed relevant
61850 and MMS business.
9. a kind of site protective device data transmission method based on dual-ring network according to claim 1-8,
It is characterized in that, by the specific networking mode of two or more site protective device handset composition dual-ring networks described in step 1
Are as follows:
Each site protective device has 4 completely self-contained looped network mouths, and 1 mouthful and 2 mouthfuls of looped network is used to transmit AD1 data, ring
3 mouthfuls of net and 4 port transmission AD2 data of looped network, 2 mouthfuls of looped network of 1 mouthful of looped network connection handset 2 of handset 1,1 mouthful of looped network connection of handset 2
2 mouthfuls of the looped network of handset 3, and so on, 2 mouthfuls of looped network of 1 mouthful of looped network of handset 3 connection handset 1,3 mouthfuls of looped network and 4 mouthfuls of references of looped network
1 and 2 mouthful of connection forms closed loop.Other means are not needed, are assisted by the ring interfaces between device, that is, gigabit network interface according to looped network
Framing is discussed to realize.
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