CN103259703B - It is applicable to the real-time bus cross-safety zone communication means of power industry - Google Patents
It is applicable to the real-time bus cross-safety zone communication means of power industry Download PDFInfo
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Abstract
The invention discloses a kind of real-time bus cross-safety zone communication means being applicable to power industry, belong to electric power information and technical field of automation.The present invention is completed cross-safety zone information exchange work jointly by transfer server and internal node, wherein transfer server has two in same safety zone, it is each responsible for sending and receiving transregional message, and by under message transmissions to the working directory specified, uses for internal node.Transfer server is deployed in the position being connected with isolating device, and all internal nodes in same safety zone are set up network by switch or router and connected, and internal node is mainly responsible for initiating message transmissions and finally accepting message.The present invention can guarantee existing place of safety framework arrange constant on the premise of, complete data and pass through unidirectional (include forward and reverse) network isolating device, final realize data communication safe and stable between different place of safety.
Description
Technical field
The invention belongs to electric power information and technical field of automation, the method particularly relating to the communication of a kind of real-time bus cross-safety zone.
Background technology
It is known that real-time bus is capable of between process the high-speed data communication of (between computer or the process of computer-internal), have the registration of process/node/cancel, message transmission, message sink, subscribe to, the function such as issue.These functions are supplied to types of applications with the form of interface function, meet information between types of applications and carry out the demand of real-time, interactive.Additionally, bus support with in on-the-spot, carry out one-to-many between multiple place of safety or multiple scene, man-to-man information exchanges, on the basis of meeting power system security requirement, create and laterally get through (between the most multiple places of safety), actual motion environment longitudinally through (between the most multiple scheduling scenes).
The data type of bus support transmission can be all kinds of real time datas and the events such as telemetry, switch changed position, trouble-signal, control instruction.Bus belongs to the service routine of communication layers, application can arrange, according to practical situation, the quality that bus is its service, service quality includes non-persistentization and persistence service, it addition, bus can operate in the main flow windows/linux operating system platform of 32/64 with security and stability.
Mutual fast and efficiently for meeting real time information, the communication mode of real-time bus is asynchronous non-block type, and application program is by calling sending message and receiving message interface and realize the transmission of message in real time bus interface storehouse.Transmission interface is responsible for the transmission relief area put by message to local, and the message of relief area is sent by the propelling movement process on backstage.And the responsible message that receives from network of backstage receiving thread of receiving terminal is to local reception relief area, receiving interface obtains message from this relief area.When communicating between multiple on-the-spot or multiple places of safety, a message transfer program can be run in each scene or place of safety, to realize spreading out of and accessing of message.The function that bus has at present is as follows:
Support the message transmissions of node-to-node mode；
Support that node is to the message transmissions of passage (i.e. node is to multiple nodes)；
Support different grades of quality of service transport；
Support the transmission with on-the-spot interior message；
Support the transmission of message between many scenes, including point-to-point and point-to-multipoint；
Support the transmission of message between many places of safety, including point-to-point and point-to-multipoint；
There is perfect bus management function, including nodal information, progress information, cache information and channel information etc., check management；
There is perfect application program second development interface storehouse.
Along with improving constantly of electric power trade information level, for ensureing electric power core information security of system, power system begins with Security mechanism, in China's power system, service areas based on computer and network technologies can be divided into again real time control area (i.e. place of safety I) and non-controlling to produce district (i.e. place of safety II), and management information area is divided into district of production management (i.e. place of safety III) and management information area (i.e. place of safety IV).Wherein between I district and II district, between III district and IV district, fire wall is all used to realize logic isolation, network isolating device is used to realize physical isolation between I/II district and III district, I/II district uses the isolation of forward network safety isolator to the communication in III district, and forward isolating device only allows the data in I/II district are transferred to III district.III district uses the isolation of reverse network safety isolator to the communication in I/II district, and reverse isolation device allows the data in III district are transferred to I/II district.Also having a difference for the support of transmission means, forward isolating device and reverse isolation device, forward isolating device supports TCP/UDP individual event message transmissions, and reverse isolation device only supports that the formatted texts such as the E language that band sign transmit.The division of place of safety makes the data communication between each district the most transregional to carry out, and the most how user is shielded place of safety, necessary data carries out the transregional shared realization to real-time bus and just seems extremely important.
In order to avoid the isolating device of security interval produces impact to bus communication function, the method needing to realize the communication of a kind of real-time bus cross-safety zone, its main purpose is intended to accomplish on the basis of meeting power system security requirement, creates the actual motion environment laterally getting through (i.e. cross-safety zone communication).The present invention is precisely in order to realize the cross-safety zone communication function of real-time bus and develop realization in electric power scheduling automatization system.
Summary of the invention
In order to solve prior art is positioned under power industry environment the node of different safety zone by real-time bus carry out information mutual problem, the present invention proposes a kind of real-time bus cross-safety zone communication means being applicable to power industry.The method can guarantee existing place of safety framework arrange constant on the premise of, complete data and pass through unidirectional (include forward and reverse) network isolating device, final realize data communication safe and stable between different place of safety.
Specifically, the present invention is to take following technical scheme to realize, and comprises the following steps:
1) production control zone forward transfer server is set in the production control zone of power system and produces the reverse transfer server in control zone, the reverse transfer server of district of production management forward transfer server and district of production management is set in the district of production management of power system, wherein:
Produce control zone forward transfer server for receive produce control zone internal node broadcast, in producing control zone internal node, broadcast this node messages, receive and produce control zone internal node and need to be transmitted to the message in district of production management and this message is sent to district of production management forward transfer server through forward isolating device；
Produce control zone reverse transfer server for receive produce control zone internal node broadcast, in producing control zone internal node, broadcast this node messages, receive the text message transmitted by the reverse transfer server in district of production management and text message converted back initial message form, sends message according to destination address to producing control zone internal node；
District of production management forward transfer server is for receiving the broadcast of production management's district's internal node, broadcasting this node messages, receive by producing message that control zone forward transfer server transmits, sending message according to destination address to production management's district's internal node in production management's district's internal node；
The reverse transfer server in district of production management is for receiving the broadcast of production management's district's internal node, broadcasting this node messages, receive production management district's internal node and need the message being transmitted to produce control zone and be sent to produce the reverse transfer server in control zone through reverse isolation device by text message after this message is formatted as the text message of textual form of reverse isolation device support in production management's district's internal node；
2) when needs are by when producing control zone to district of production management transmission message, first from production control zone, internal node reception needs be transmitted to the message in district of production management and through forward isolating device, this message is sent to district of production management forward transfer server to produce control zone forward transfer server, and district of production management forward transfer server sends message to production management's district's internal node according to destination address after receiving the message transmitted by production control zone transfer server；
3) when needs are sent message by district of production management to production control zone, the reverse transfer server in district of production management first receives, from production management's district's internal node, the message needing to be transmitted to produce control zone and is sent to produce the reverse transfer server in control zone through reverse isolation device by text message after this message is formatted as the text message of textual form of reverse isolation device support, produces the reverse transfer server in control zone and text message converts back after receiving the text message transmitted by the reverse transfer server in district of production management initial message form and sends message to producing control zone internal node according to destination address.
Beneficial effects of the present invention is as follows: present invention achieves the cross-safety zone communication of real-time bus, solve under power system security partitioned environment, data communication problem between the internal node of different safety zones, the power industry real-time bus that have employed " cross-safety zone communication " function can be greatly enhanced bus versatility, on the basis of meeting power system security requirement, create the actual motion environment laterally getting through (communicating between the most multiple places of safety), greatly promote its using value, make real-time bus can meet more complicated data communication needs.
Accompanying drawing explanation
Accompanying drawing 1 is place of safety I and place of safety III communication field enforcement figure.
Accompanying drawing 2 is place of safety I and place of safety III communication plan schematic diagram.
Accompanying drawing 3 is that place of safety I is to place of safety III message transmissions flow chart.
Accompanying drawing 4 is place of safety III and place of safety I message transmissions flow chart.
Detailed description of the invention
Below in conjunction with the accompanying drawings, describe the present invention.
Technical scheme follows strictly the functional specification of electric power scheduling automatization system, devises a kind of method for the communication of real-time bus cross-safety zone.Technical scheme is mainly for the communication of the existence physical isolation apparatus between I/II district and III district.
Only allow the characteristic of data unidirectional delivery based on isolating device, for realizing the message transmissions of real-time bus cross-safety zone, need to increase the message retransmission process of place of safety, be deployed in each place of safety on the server being connected with network isolating device.Hereafter the server being deployed with cross-safety zone message retransmission process being referred to as transfer server, the transfer server being connected with forward isolating device is referred to as forward transfer server, and the transfer server being connected with reverse isolation device is referred to as reverse transfer server.The most only as a example by the message transmissions scheme between place of safety I with place of safety III (the message transmissions scheme principle therewith between place of safety II and place of safety III is identical), forward isolating device is there is between place of safety I to place of safety III, there is reverse isolation device between place of safety III to place of safety I, real-time bus not only had needed the internal node message in safe I district to be sent to the internal node in safe III district but also need the internal node message in safe III district to be sent to the internal node in the I of place of safety.
Main technical schemes includes four parts: 1. the forward transfer server function scheme of place of safety I；2. the forward transfer server function scheme of place of safety III；3. the reverse transfer server function scheme of place of safety III；4. the reverse transfer server function scheme of place of safety I.Specific as follows:
The function scheme that place of safety I forward transfer server should have is as follows:
(1) receive the broadcast of internal node, including heartbeat message (keep active), add path message and leaving channel message etc., to safeguard node in oneself scene, progress information；
(2) broadcasting this nodal information in internal node, special sign transit node information, to allow other nodes know the existence of transfer server；
(3) receive internal node to need to be transmitted to the message of place of safety III (this message is probably certain node being sent to place of safety III, transmission source determines the need for being sent to transfer server according to the parameter in transmission interface and logic), it is placed in shared drive (being set to SHM1)；
(4) transmission needs to be sent to the message of place of safety III, and this message is taken from (3) the shared drive SHM1 mentioned.
The function scheme that place of safety III forward transfer server should have is as follows:
(1) receive the broadcast of internal node, including heartbeat message (keep active), add path message and leaving channel message etc., to safeguard node in oneself scene, progress information；
(2) broadcasting this nodal information in internal node, special sign transit node information, to allow other nodes know the existence of transfer server；
(3) receive the message sended over from place of safety I forward transfer server, be placed in shared drive (being set to SHM2), corresponding with (4th) item of the function scheme that place of safety I forward transfer server should have；
(4) message received is sent to the node of inside according to destination node, and message is taken from (3) the shared drive SHM2 mentioned.
The function scheme that III reverse transfer server in place of safety should have is as follows:
(1) receive the broadcast of internal node, including heartbeat message (keep active), add path message and leaving channel message etc., to safeguard node in oneself scene, progress information；
(2) broadcasting this nodal information in internal node, special sign transit node information, to allow other nodes know the existence of transfer server；
(3) receive internal node to need to be transmitted to the message of place of safety I (this message is probably certain node being sent to place of safety I, transmission source determines the need for being sent to transfer server according to the parameter in transmission interface and logic), message is converted to formatted text form, and is placed at the assigned catalogue that reverse isolation device provides；
(4) transmission needs to be sent to the message of place of safety I, and this message is taken from (3) assigned catalogue that the reverse isolation device mentioned provides.
The function scheme that I reverse transfer server in place of safety should have is as follows:
(1) receive the broadcast of internal node, including heartbeat message (keep active), add path message and leaving channel message etc., to safeguard node in oneself scene, progress information；
(2) broadcasting this nodal information in internal node, special sign transit node information, to allow other nodes know the existence of transfer server；
(3) receive the formatted text message sended over from reverse place of safety III, formatted text is converted back former message format and is placed in shared drive (being set to SHM3)；
(4) message received is sent to the node of inside according to destination node, and message is taken from (3) the shared drive SHM3 mentioned.
The main feature of the present invention is as follows:
A () is applicable to the real-time bus cross-safety zone communication of power industry.
Unilateral network isolating device is there is between (b) different safety zone.
C () is ensureing on the premise of security of system demand, complete data and pass through unidirectional (include forward and reverse) network isolating device, it is achieved data communication safe and stable between different places of safety.
D () is completed cross-safety zone information exchange work jointly by transfer server and internal node, wherein, transfer server has two in same safety zone, is each responsible for sending and receiving transregional message, and by under message transmissions to the working directory specified, use for internal node.Transfer server is deployed in the position being connected with isolating device；Internal node can dispose multiple stage at the same area, it can be server can also be common computer, all internal nodes in same safety zone are set up network by switch or router and are connected, and internal node is mainly responsible for initiating message transmissions and finally accepting message.
E () is called real-time bus and file is sent/receives the support of application interface, management of process and message transmissions.
During the cross-safety zone communication means that the application present invention proposes, need to dispatch real-time bus and file sends/receives the support of application interface, management of process and message transmissions, message is sent to targeted security district by the information such as place of safety name that bus provides according to heading, node name, it is achieved the unidirectional message transmissions between place of safety.
As a example by the communication between the place of safety I shown in accompanying drawing 1 and place of safety III.In accompanying drawing 1, device N1, N2, N3, N4 are the internal nodes of place of safety I, they can be server can also be common computer；Device Z1, Z2 are the forward transfer server of place of safety 1, reverse transfer server respectively, and wherein Z1 is responsible for cross-safety zone message forwarding, and Z2 is responsible for cross-safety zone message and receives；Device N5, N6, N7, N8 are the internal nodes of place of safety I；Device Z3, Z4 are the forward transfer server of place of safety III, reverse transfer server respectively, and wherein Z3 is responsible for cross-safety zone message reception, and Z4 is responsible for cross-safety zone message and forwards；Device G1, G2 are forward, the reverse isolation device being deployed between place of safety I and place of safety III respectively；Device J1, J2 are the switch in place of safety I, place of safety III respectively, and each node in place of safety (including internal node and transfer server) is connected composition LAN by switch.Concrete IP address and network information example are as follows:
Z1 IP address: 192.168.11.15, gateway address: 192.168.11.1.
Z2 IP address: 192.168.11.16, gateway address: 192.168.11.1.
N1 IP address: 192.168.11.17, gateway address: 192.168.11.1.
N2 I-P address: 192.168.11.18, gateway address: 192.168.11.1.
N3 IP address: 192.168.11.19, gateway address: 192.168.11.1.
N4 IP address: 192.168.11.20, gateway address: 192.168.11.1.
J1 place of safety I switch.
The unidirectional isolating device of G1, forward type, detailed configuration see below.
The unidirectional isolating device of G2, reversal, detailed configuration see below.
Z3 IP address: 192.100.11.30, gateway address: 192.100.11.1.
Z4 IP address: 192.100.11.31, gateway address: 192.100.11.1.
N5 IP address: 192.100.11.32, gateway address: 192.100.11.1.
N6 IP address: 192.100.11.33, gateway address: 192.100.11.1.
N7 IP address: 192.100.11.34, gateway address: 192.100.11.1.
N8 IP address: 192.100.11.35, gateway address: 192.100.11.1.
J2 place of safety III switch.
Accompanying drawing 2 gives the signal of this communication plan.In figure, the internal node N2 with place of safety I sends message to the internal node N7 of place of safety III, the internal node N8 of place of safety III sends message citing to the internal node N3 of place of safety I, and the transmission path of message is represented by dashed line.Implementation step is as follows:
Step 1: dispose transfer service routine on the forward transfer server Z1 in the I of place of safety.This program mainly be responsible for receive internal node broadcast, broadcast in internal node this node messages, receive internal node need to be transmitted to place of safety III message and send message to place of safety III.
Step 2: dispose transfer service routine on the reverse transfer server Z2 in the I of place of safety.This program is mainly responsible for receiving the broadcast of internal node, is broadcasted this node messages, receives the text message that transmitted by place of safety III in internal node, text message converted back initial message format and transmits message in shared drive, and sending message to internal node according to destination address.
Step 3: dispose transfer service routine on the forward transfer server Z3 in the III of place of safety.This program is mainly responsible for receiving the broadcast of internal node, is broadcasted this node messages, receives the message that transmitted by Z1 transfer service in internal node, and be transferred in shared drive by file, and send message to internal node according to destination address.
Step 4: dispose transfer service routine on the reverse transfer server Z4 in the III of place of safety.This program mainly be responsible for receive internal node broadcast, broadcast in internal node this node messages, receive internal node need to be transmitted to the message of place of safety I, message be formatted as the textual form of reverse isolation device support and text message to be sent is put at the catalogue that reverse isolation device is specified.
Wherein, the configuring condition of unidirectional isolating device G1 (forward isolation gap) see table:
The configuring condition of unidirectional isolating device G2 (reverse isolation gateway) see table:
The message transmissions flow process (forward transmission) of place of safety I to place of safety III, the message transmissions flow process (reverse transfer) of place of safety III to place of safety I refer to accompanying drawing 3 and accompanying drawing 4.
Although the present invention is open as above with preferred embodiment, but embodiment is not for limiting the present invention's.Without departing from the spirit and scope of the invention, any equivalence change done or retouching, also belong to the protection domain of the present invention.Therefore the content that protection scope of the present invention should be defined with claims hereof is as standard.
Claims (1)
1. it is applicable to the real-time bus cross-safety zone communication means of power industry, it is characterised in that comprise the following steps:
1) production control zone forward transfer server is set in the production control zone of power system and produces the reverse transfer server in control zone, the reverse transfer server of district of production management forward transfer server and district of production management is set in the district of production management of power system, wherein:
Produce control zone forward transfer server for receive produce control zone internal node broadcast, in producing control zone internal node, broadcast this node messages, receive and produce control zone internal node and need to be transmitted to the message in district of production management and this message is sent to district of production management forward transfer server through forward isolating device；
Produce control zone reverse transfer server for receive produce control zone internal node broadcast, in producing control zone internal node, broadcast this node messages, receive the text message transmitted by the reverse transfer server in district of production management and text message converted back initial message form, sends message according to destination address to producing control zone internal node；
District of production management forward transfer server is for receiving the broadcast of production management's district's internal node, broadcasting this node messages, receive by producing message that control zone forward transfer server transmits, sending message according to destination address to production management's district's internal node in production management's district's internal node；
The reverse transfer server in district of production management is for receiving the broadcast of production management's district's internal node, broadcasting this node messages, receive production management district's internal node and need the message being transmitted to produce control zone and be sent to produce the reverse transfer server in control zone through reverse isolation device by text message after this message is formatted as the text message of textual form of reverse isolation device support in production management's district's internal node；
2) when needs are by when producing control zone to district of production management transmission message, first from production control zone, internal node reception needs be transmitted to the message in district of production management and through forward isolating device, this message is sent to district of production management forward transfer server to produce control zone forward transfer server, and district of production management forward transfer server sends message to production management's district's internal node according to destination address after receiving the message transmitted by production control zone transfer server；
3) when needs are sent message by district of production management to production control zone, the reverse transfer server in district of production management first receives, from production management's district's internal node, the message needing to be transmitted to produce control zone and is sent to produce the reverse transfer server in control zone through reverse isolation device by text message after this message is formatted as the text message of textual form of reverse isolation device support, produces the reverse transfer server in control zone and text message converts back after receiving the text message transmitted by the reverse transfer server in district of production management initial message form and sends message to producing control zone internal node according to destination address.
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| CN102088393A (en) * | 2009-12-02 | 2011-06-08 | 南京南瑞继保电气有限公司 | Method for transmitting positive and negative data across safety zone |
| CN101867452A (en) * | 2010-06-10 | 2010-10-20 | 国网电力科学研究院 | Communication method of serial real-time bus special in electricity |
| CN101867620A (en) * | 2010-07-02 | 2010-10-20 | 南京南瑞继保电气有限公司 | Method for viewing pre-message through crossing security zone |
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