CN104092655A - IEC104 safe remote-control method based on scheduling number authentication - Google Patents
IEC104 safe remote-control method based on scheduling number authentication Download PDFInfo
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Abstract
The invention provides an IEC104 safe remote-control method based on scheduling number authentication. The method includes the following steps: a new ASDU type identification and a new ASDU format are defined for a remote control and remote regulation process of a DL/T634.5104; and the new ASDU format carries scheduling number information of a remote-control and remote-regulation object; and a power station checks and authenticates the scheduling number information and intercepts a dislocated remote control and remote regulation process. The IEC104 safe remote-control method based on scheduling number authentication expands related standards of an IEC104 communication protocol and solves an error remote control problem caused when in IEC104 telecontrol communication, the power station is incapable of identifying information object address dislocation so that safety and reliability of a remote control and remote regulation process are ensured and thus safety of power grid operation is improved.
Description
Technical field
The present invention relates to the transmission protocol technical field of telecontrol equipment and system, specifically a kind of IEC104 safety remote control method based on the authentication of scheduling numbering.
Background technology
At power dispatching automation main station system between the plant stand telemechanical communication server, substantially adopt at present DL/T634.5104 communication protocol, i.e. < < telecontrol equipment and system 5-104 part: transmission protocol adopts the IEC60870-5-101 access to netwoks > > of standard transmission protocol collection.This standard adopting by equation IEC60870-5-104 international standard, is often called IEC104 for short.IEC104 communication protocol is generally used to realize issuing of the main website control commands such as uploading of the plant stand process variable information such as remote signalling remote measurement and remote control remote regulating.
Along with the fast development of electrical network scale, the core technology supporting method of controlling and regulating is implemented in remote control remote regulating to the management and running of electrical network as dispatch automated system, seems and becomes more and more important, and expect to obtain more general application.Yet, the security reliability of security reliability, the especially remote control process of remote control remote regulating process is still unsatisfactory at present.Its main manifestations is, after dispatcher sends remote control command, the primary equipment of the final actual act of plant stand is not that of the desired remote control of dispatcher.No matter based on which kind of reason, the remote control process having misplaced, all by directly affecting the fail safe of operation of power networks, even causes the generation of serious consequence.Therefore, improve and guarantee the security reliability of remote control remote regulating process, significant.
IEC104 communication protocol is specified the target device object of remote control, remote regulating and a setting with information object address.No matter be dispatching automation main station system (being the control station of IEC104 communication), or the plant stand telemechanical communication server (being the slave station of IEC104 communication), communicating pair all has a information table, the data types such as remote signalling, remote measurement, remote control, remote regulating are used relatively continuous information object address area separately, to complete in the relative process amount of information object address and primary equipment or the mutual conversion between controlled quentity controlled variable.Under normal circumstances, these two parts of information tables should be consistent, as certain information object address corresponding device A in the information table of main website, and also corresponding device A in the information table of plant stand.
Yet practical operating experiences shows, many reasons causes information table to occur inconsistent situation often.Still take above-mentioned information object address is example, and corresponding device A still in the information table of Qi main website may be adjusted to corresponding device B in the information table of plant stand.Now, if main website implements remote control to device A, plant stand, according to given information object address, finally but only can be implemented to control to equipment B, thereby occurs the dislocation of remote control process.Here it is in IEC104 telemechanical communication, the mistake remote control problem causing because of the dislocation of information object address.
The essence that causes mistake remote control problem because of the dislocation of information object address is, for main website and plant stand both sides, the remote control remote regulating process of IEC104 communication lacks authentication information, main website and plant stand both sides all cannot identify in time because information object address misplaces and cause mistake remote control, more cannot stop in time mistake remote control, or interception is implemented in remote control to mistake.
Summary of the invention
The object of the present invention is to provide a kind of IEC104 safety remote control method based on the authentication of scheduling numbering, the method is based on the existing remote control remote regulating mechanism of IEC104 communication protocol, by expansion, define new ASDU type identification and ASDU form (ASDU is Application Service Data Unit application service data cell), make the scheduling number information of its remote control remote regulating primary equipment destination object going along with, for plant stand, (be slave station, lower same) verify and authentication, thereby make plant stand can find in time that main website (is control station, mistake remote control intention down together), and it is implemented to interception.
Technical scheme of the present invention is:
An IEC104 safety remote control method based on the authentication of scheduling numbering, comprises the following steps:
(1) on the basis of the existing remote control remote regulating of IEC104 communication protocol ASDU type identification, for the new ASDU type identification of definition is expanded in the remote control remote regulating of band scheduling number information;
(2) be the ASDU type identification newly-increased definition ASDU form correspondingly of above-mentioned newly-increased definition, the subsidiary scheduling number information of the primary equipment destination object of remote control remote regulating to some extent of ASDU form of described newly-increased definition;
(3) use the remote control remote regulating of the ASDU type identification of newly-increased definition and the band of ASDU form scheduling number information, in main website and plant stand mutual, adopt and the on all four command transfer process of remote control remote regulating of existing standard;
(4) main website sends to plant stand by the remote control remote regulating ASDU of band scheduling number information, and the information of sending comprises the scheduling number information of information object address and corresponding primary equipment;
(5) plant stand is verified and authentication processing the remote control remote regulating ASDU of the band scheduling number information receiving, and Bing Xiang main website sends corresponding confirmation;
(6) confirmation that main website returns plant stand checks, judgement is positive acknowledgement or Negative Acknowledgement, if Negative Acknowledgement has been considered as having occurred the dislocation of remote control remote regulating order, starts corresponding subsequent treatment.
The described IEC104 safety remote control method based on the authentication of scheduling numbering, in described step (2), the ASDU form of described newly-increased definition is the subsidiary device type information of the primary equipment destination object of remote control remote regulating to some extent also.
The described IEC104 safety remote control method based on the authentication of scheduling numbering, described step (5), specifically comprises the following steps:
(51) whether the specified remote control remote regulating amount in the information object address of plant stand inspection in ASDU exists, corresponding certain primary equipment whether, and whether the scheduling that checks the corresponding primary equipment of this remote control remote regulating amount institute numbers consistent with ASDU;
(52) if plant stand finds that the information object address in ASDU is not corresponding with certain primary equipment, or inconsistent in the scheduling of this primary equipment numbering and ASDU, be considered as authentification failure, regard as the dislocation that remote control remote regulating order has occurred;
(53) plant stand, for the remote control remote regulating order of authentification failure, is ended current remote control remote regulating selection course or remote control remote regulating implementation, and Bing Xiang main website beams back corresponding Negative Acknowledgement.
As shown from the above technical solution, the invention provides a kind of IEC104 safety remote control method based on the authentication of scheduling numbering, for DL/T 634.5104(is IEC60870-5-104) the new ASDU type identification of remote control remote regulating procedure definition and new ASDU form, new ASDU form is with the scheduling number information of remote control remote regulating object, by plant stand, verified and this scheduling number information of authentication, and to the remote control remote regulating implementation Process interception having misplaced.The present invention expands the related standards of IEC104 communication protocol, solved the mistake remote control problem causing because of the dislocation of plant stand None-identified information object address in IEC 104 telemechanical communications, guarantee the security reliability of remote control remote regulating process, thereby improved the fail safe of operation of power networks.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention;
Fig. 2 is the ASDU type identification of newly-increased definition;
Fig. 3 is the scheduling number information in remote control remote regulating ASDU;
Fig. 4 is the device type code table of primary equipment;
Fig. 5 is the ASDU form of type identification 145: C_SC_NB_1, the single command of band scheduling number information;
Fig. 6 is the ASDU form of type identification 146: C_DC_NB_1, two orders of band scheduling number information;
Fig. 7 is the ASDU form of type identification 147: C_RC_NB_1, the step adjusting command of band scheduling number information;
Fig. 8 is the ASDU form of type identification 148: C_SE_ND_1, the order of setting up an office of band scheduling number information, normalized value;
Fig. 9 is the ASDU form of type identification 149: C_SE_NE_1, the order of setting up an office of band scheduling number information, scale value;
Figure 10 is the ASDU form of type identification 150: C_SE_NF_1, the order of setting up an office of band scheduling number information, short floating point values;
Figure 11 is the ASDU form of type identification 151: C_BO_NB_1,32 Bit Strings of band scheduling number information;
Figure 12 is the ASDU form of type identification 158: C_SC_TB_1, the single command of band scheduling number information and markers CP56Time2a;
Figure 13 is the ASDU form of type identification 159: C_DC_TB_1, two orders of band scheduling number information and markers CP56Time2a;
Figure 14 is the ASDU form of type identification 160: C_RC_TB_1, the step adjusting command of band scheduling number information and markers CP56Time2a;
Figure 15 is the ASDU form of type identification 161: C_SE_TD_1, the order of setting up an office of band scheduling number information and markers CP56Time2a, normalized value;
Figure 16 is the ASDU form of type identification 162: C_SE_TE_1, the order of setting up an office of band scheduling number information and markers CP56Time2a, scale value;
Figure 17 is the ASDU form of type identification 163: C_SE_TF_1, the order of setting up an office of band scheduling number information and markers CP56Time2a, short floating point values;
Figure 18 is the ASDU form of type identification 164: C_BO_TB_1,32 Bit Strings of band scheduling number information and markers CP56Time2a.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.
As shown in Figure 1, a kind of IEC104 safety remote control method based on the authentication of scheduling numbering, comprises the following steps:
S1, on the basis of the existing remote control remote regulating of IEC 104 communication protocol ASDU type identification, using it is the reserve area of compatible definition in the future, is that the new ASDU type identification of definition is expanded in the remote control remote regulating of band scheduling number information, as shown in Figure 2.ASDU type identification for above each band scheduling number information, is mainly divided into three major types type:
S11, remote control comprise: two orders of single command, band scheduling number information and the markers CP56Time2a of two orders, band scheduling number information and the markers CP56Time2a of the single command of scheduling number information, band scheduling number information;
S12, remote regulating comprise: the step adjusting command of the step adjusting command of band scheduling number information, band scheduling number information and markers CP56Time2a;
S13, setting comprise: be with the order-normalized value of setting up an office, order-scale value of setting up an office of band scheduling number information of scheduling number information, be with the order-normalized value of setting up an office of the order of the setting up an office-short floating point values, band scheduling number information and the markers CP56Time2a that dispatch number information, order-scale value of setting up an office that band is dispatched number information and markers CP56Time2a, the order of setting up an office-short floating point values of being with scheduling number information and markers CP56Time2a.
S2, be the ASDU type identification newly-increased definition ASDU form correspondingly of above newly-increased definition, make their all scheduling numberings of the primary equipment destination object of institute going along with remote control remote regulating, the scheduling numbering of primary equipment adopts character string forms, 10 eight hytes altogether, fill 00H to 10 eight hytes of less than at afterbody; Meanwhile, the device type information of the primary equipment destination object of institute going along with remote control remote regulating, adopts 2 eight hytes to represent, bit corresponding to device type is set to 1, and it is 0 that other bit is removed, as shown in Figure 4.Like this, make the remote control remote regulating ASDU of all band scheduling number information, all, on the basis of original remote control remote regulating ASDU, trail scheduling number information as shown in Figure 3.The ASDU form of all newly-increased definition comprises:
The single command of S21, band scheduling number information, as shown in Figure 5;
Two orders of S22, band scheduling number information, as shown in Figure 6;
The step adjusting command of S23, band scheduling number information, as shown in Figure 7;
Order-the normalized value of setting up an office of S24, band scheduling number information, as shown in Figure 8;
Order-scale value of setting up an office of S25, band scheduling number information, as shown in Figure 9;
The order of the setting up an office-short floating point values of S26, band scheduling number information, as shown in figure 10;
32 Bit Strings of S27, band scheduling number information, as shown in figure 11;
The single command of S28, band scheduling number information and markers CP56Time2a, as shown in figure 12;
Two orders of S29, band scheduling number information and markers CP56Time2a, as shown in figure 13;
The step adjusting command of S210, band scheduling number information and markers CP56Time2a, as shown in figure 14;
Order-the normalized value of setting up an office of S211, band scheduling number information and markers CP56Time2a, as shown in figure 15;
Order-scale value of setting up an office of S212, band scheduling number information and markers CP56Time2a, as shown in figure 16;
The order of setting up an office-short floating point values of S213, band scheduling number information and markers CP56Time2a, as shown in figure 17;
32 Bit Strings of S214, band scheduling number information and markers CP56Time2a, as shown in figure 18.
The remote control remote regulating of S3, band scheduling number information, is used ASDU type identification and the ASDU form of above-mentioned newly-increased definition, the reciprocal processes such as the selection between main website and plant stand, execution, still with remained unchanged in the past; That is to say, continue the on all four command transfer process of remote control remote regulating of employing and existing standard.
S4, main website be to each remote control remote regulating amount, except registering its information object address, also register this remote control remote regulating amount scheduling numbering and the device type of corresponding primary equipment.No matter the remote control remote regulating ASDU of main website to the band scheduling number information of all outgoings, be in the choice phase, or in the execution phase, except continuing to provide the original informations such as information object address, also must additionally provide the scheduling number information of corresponding primary equipment.
No matter S5, the remote control remote regulating ASDU of plant stand to each received band scheduling number information, be in the choice phase, or in the execution phase, all by following sub-step, process:
S51, must make extra verification and authentication to incidental scheduling number information, particularly, at least comprise following sub-step:
Whether whether S511, the specified remote control remote regulating amount in information object address in ASDU that checks exist, corresponding which primary equipment;
S512, check this remote control remote regulating amount scheduling numbering consistent with ASDU whether of corresponding primary equipment, with and device type consistent with ASDU whether;
S513, other routine inspection.
Once S52, plant stand find not corresponding which primary equipment in information object address in ASDU, or inconsistent in the scheduling numbering of this primary equipment or device type and ASDU, regard authentification failure as, regard as the dislocation that remote control remote regulating order has occurred.
S53, plant stand are for the remote control remote regulating order of authentification failure, should end current remote control remote regulating selection or remote control remote regulating implementation, to main website, beam back corresponding Negative Acknowledgement as early as possible, and its reason code is set for " <47> :=unknown information object address ".
S6, no matter be in the choice phase, or in the execution phase, main website must check the confirmation that plant stand is returned all the time, to be checked through the end be sure or negate.For Negative Acknowledgement, should regard the failure of remote control remote regulating process as, and the remote control remote regulating object that is " <47> :=unknown information object address " to reason code causes enough attention, regarded as the dislocation that remote control remote regulating has occurred, and start in time corresponding subsequent treatment, and such as: warn relevant operator, log recording etc.
The above execution mode is only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection range of claims of the present invention.
Claims (3)
1. the IEC104 safety remote control method based on the authentication of scheduling numbering, is characterized in that, comprises the following steps:
(1) on the basis of the existing remote control remote regulating of IEC104 communication protocol ASDU type identification, for the new ASDU type identification of definition is expanded in the remote control remote regulating of band scheduling number information;
(2) be the ASDU type identification newly-increased definition ASDU form correspondingly of above-mentioned newly-increased definition, the subsidiary scheduling number information of the primary equipment destination object of remote control remote regulating to some extent of ASDU form of described newly-increased definition;
(3) use the remote control remote regulating of the ASDU type identification of newly-increased definition and the band of ASDU form scheduling number information, in main website and plant stand mutual, adopt and the on all four command transfer process of remote control remote regulating of existing standard;
(4) main website sends to plant stand by the remote control remote regulating ASDU of band scheduling number information, and the information of sending comprises the scheduling number information of information object address and corresponding primary equipment;
(5) plant stand is verified and authentication processing the remote control remote regulating ASDU of the band scheduling number information receiving, and Bing Xiang main website sends corresponding confirmation;
(6) confirmation that main website returns plant stand checks, judgement is positive acknowledgement or Negative Acknowledgement, if Negative Acknowledgement has been considered as having occurred the dislocation of remote control remote regulating order, starts corresponding subsequent treatment.
2. according to claim 1 based on dispatching the IEC104 safety remote control method of numbering authentication, it is characterized in that: in described step (2), the ASDU form of described newly-increased definition is the subsidiary device type information of the primary equipment destination object of remote control remote regulating to some extent also.
3. the IEC104 safety remote control method based on the authentication of scheduling numbering according to claim 1, is characterized in that, described step (5), specifically comprises the following steps:
(51) whether the specified remote control remote regulating amount in the information object address of plant stand inspection in ASDU exists, corresponding certain primary equipment whether, and whether the scheduling that checks the corresponding primary equipment of this remote control remote regulating amount institute numbers consistent with ASDU;
(52) if plant stand finds that the information object address in ASDU is not corresponding with certain primary equipment, or inconsistent in the scheduling of this primary equipment numbering and ASDU, be considered as authentification failure, regard as the dislocation that remote control remote regulating order has occurred;
(53) plant stand, for the remote control remote regulating order of authentification failure, is ended current remote control remote regulating selection course or remote control remote regulating implementation, and Bing Xiang main website beams back corresponding Negative Acknowledgement.
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Cited By (4)
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| CN106972624A (en) * | 2016-01-14 | 2017-07-21 | 华东电网有限公司 | Power remote reliable control method and system based on address self checking |
| CN109615841A (en) * | 2018-12-21 | 2019-04-12 | 国网思极神往位置服务（北京）有限公司 | Beidou multi-user card data transmission device and transmission method applied to FTU |
| CN110932401A (en) * | 2019-12-05 | 2020-03-27 | 国网辽宁省电力有限公司锦州供电公司 | Method for improving safety of remote control high-voltage switch |
| CN113992763A (en) * | 2021-08-30 | 2022-01-28 | 国网浙江省电力有限公司宁波供电公司 | Method for adding remote control object code verification in measurement and control device |
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| CN113992763A (en) * | 2021-08-30 | 2022-01-28 | 国网浙江省电力有限公司宁波供电公司 | Method for adding remote control object code verification in measurement and control device |
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