CN104580488B - A kind of information synchronization method and system - Google Patents
A kind of information synchronization method and system Download PDFInfo
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- CN104580488B CN104580488B CN201510027048.6A CN201510027048A CN104580488B CN 104580488 B CN104580488 B CN 104580488B CN 201510027048 A CN201510027048 A CN 201510027048A CN 104580488 B CN104580488 B CN 104580488B
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Abstract
The invention discloses a kind of information synchronization method and system, by the identity tag for obtaining miscellaneous equipment in train system first, and whether it is that the currently active identity tag judges to identity tag, if the currently active identity tag, then obtain the identity tag data of the currently active identity tag, using the identity tag data as new identity tag data, original identity tag data are replaced, realize the renewal of identity tag.This programme realizes the renewal of identity tag, so as to improve the reliability of system by the replacement between distinct device in same device to identity tag.
Description
Technical field
The present invention relates to Train Control field, more particularly to a kind of information synchronization method and system.
Background technology
The development of track transportation industry is increasingly rapid, to ensure the information security of train, passage in information-based application process
Safety and application safety, it is necessary to be applied to identity identifying technology.
Train system and two parts of the car-ground radio Transmission system as information-based means application system, to carry
The loose coupling of high part, complexity and degree of interdepending between train system and car-ground radio Transmission system are reduced,
A unique identity tag is assigned using train system as a unit, can so be effectively reduced staff's maintenance
Workload, improve operating efficiency.
However, in practice process, in order to effectively reduce cost, only allow the equipment of any one end of train with being linked into car
In wireless transmitting system, do not allow terminal device while being linked into car-ground radio Transmission system, moreover, being transmitted in car-ground radio and being
During using dynamic identity authentication in system, identity tag can be constantly updated, this just need on train each two equipment it
Between identity tag synchronize, otherwise, once if the identity tag for having an end equipment is not in time for renewal, will can not
By certification, this is greatly lowered the reliability of system.
At present, for this problem also without effective solution.
The content of the invention
In view of this, the present invention provides a kind of information synchronization method and system, in the prior art can not be right in time with solution
Identity tag on train between two equipment synchronizes, and causes authentication not in time, so as to reduce system reliability
The problem of, its concrete scheme is as follows：
A kind of information synchronization method, including：
Obtain the identity tag of miscellaneous equipment in train system；
Whether the identity tag for judging miscellaneous equipment in the train system is the currently active mark；
If so, obtain the identity tag data of the currently active identity tag；
Using the identity tag data as new identity tag data, original identity tag data are replaced.
Further, in addition to：
For the new unique sequence number of identity tag data distribution.
Further, in addition to：
The instruction of transmission synchronizing identity flag data miscellaneous equipment into the train system, makes its in the train system
Its equipment receives the instruction of the synchronizing identity flag data, and judges whether that needs are updated according to the sequence number,
Judged result is obtained, is operated according to the judged result.
Further, it is described transmission synchronizing identity flag data instruction into the train system miscellaneous equipment it
Before, in addition to：
Judge whether the miscellaneous equipment can communicate；
If so, then send synchronizing identity flag data instruction into the train system miscellaneous equipment；Otherwise continue to sentence
Whether miscellaneous equipment can communicate in the disconnected train system.
Further, in addition to：
The new identity tag data are stored.
Further, in addition to：
When the identity tag of miscellaneous equipment in the train system is not the currently active mark, judge that the miscellaneous equipment is
It is no to communicate；
If so, then send synchronizing identity flag data instruction into the train system miscellaneous equipment；Otherwise continue to sentence
Whether miscellaneous equipment can communicate in the disconnected train system.
A kind of information synchronization system, including：First acquisition unit, the marker validation list being connected with the first acquisition unit
Member, the second acquisition unit being connected with the marker validation unit, the identity tag renewal being connected with the second acquisition unit
Unit, wherein：
The first acquisition unit is used for the identity tag for obtaining miscellaneous equipment in train system；
The marker validation unit is used to judge whether the identity tag of miscellaneous equipment in the train system to be currently to have
Valid flag, instructed if so, then sending data acquisition to the second acquisition unit；
The second acquisition unit is used to receive the data acquisition instruction, obtains the body of the currently active identity tag
Part flag data；
The identity tag updating block is used to, using the identity tag data as new identity tag data, replace former
Some identity tag data.
Further, in addition to：The numbering updating block being connected with the identity tag updating block, wherein：
It is the new unique sequence number of identity tag data distribution that the numbering updating block, which is used for,.
Further, in addition to：The identity tag judging unit being connected with the numbering updating block, wherein：
The identity tag judging unit be used to sending the instruction of synchronizing identity flag data into the train system its
Its equipment, make the instruction of the miscellaneous equipment reception synchronizing identity flag data in the train system, and according to the sequence
Numbering judges whether that needs are updated, and obtains judged result, is operated according to the judged result.
Further, in addition to：The memory cell being connected with the identity tag updating block,
The memory cell is used to be stored the new identity tag data.
It can be seen from the above technical proposal that information synchronization method disclosed in the present application and system, by obtaining row first
The identity tag of miscellaneous equipment in car system, and whether be that the currently active identity tag judges to identity tag, if working as
Preceding effective identity tag, then the identity tag data of the currently active identity tag are obtained, using the identity tag data as new
Identity tag data, replace original identity tag data, realize the renewal of identity tag.This programme passes through same device
To the replacement of identity tag between interior distinct device, the renewal of identity tag is realized, so as to improve the reliability of system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of information synchronization method disclosed in the embodiment of the present invention；
Fig. 2 is a kind of flow chart of information synchronization method disclosed in the embodiment of the present invention；
Fig. 3 is a kind of structural representation of information synchronization system disclosed in the embodiment of the present invention；
Fig. 4 is a kind of structural representation of information synchronization system disclosed in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The invention discloses a kind of information synchronization method, its flow chart as shown in figure 1, including：
Step S11, the identity tag of miscellaneous equipment in train system is obtained；
Scheme disclosed in the present embodiment is applied between two identical equipment in same system, or multiple identical equipment
Between.It is assumed that angle of this programme from device A, then miscellaneous equipment can be equipment B or equipment C or more in train system.
When there is two identical equipment in same system, equipment B identity tag is obtained, identity tag can be specially
IP address information；
When there is three identical equipment in same system, equipment B identity tag is obtained, simultaneously or sequentially, is obtained
Equipment C identity tag.
Whether the identity tag for step S12, judging miscellaneous equipment in train system is the currently active identity tag；
Whether the identity tag for judging miscellaneous equipment in train system is the currently active identity tag, can be simultaneously to train
The identity tag of miscellaneous equipment is judged in system, can also be judged successively, you can with simultaneously to equipment B and equipment C
Identity tag judged, equipment B and equipment C identity tag can also be judged successively.
Step S13, if so, then obtaining the identity tag data of the currently active identity tag；
The currently active identity tag is unique, if equipment B is the currently active with there was only the identity tag of one in equipment C
Identity tag, then another is necessarily different；If equipment B and equipment C identity tag are all the currently active identity tags, that
Equipment B and equipment C identity tag necessarily identical.
Step S14, using identity tag data as new identity tag data, original identity tag data are replaced.
So that the currently active identity tag is equipment B identity tag as an example：
Assuming that the original identity tag data of device A are Data_A, equipment B identity tag data are Data_New, then
In device A, Data_A is replaced with into Data_New, to realize the synchronization of identity tag, so as in time to the data of equipment room
It is transmitted.
In addition, in information synchronization method disclosed in the present embodiment, using identity tag data as new identity tag number
According to, can be with after replacing original identity tag data：For the new unique sequence number of identity tag data distribution.
Specifically, assume that the original sequence number of device A is Sequence_A, then new sequence number can in device A
Think Sequence_A+1, or other sequence numbers, as long as unique number.
Information synchronization method disclosed in the present embodiment, by obtaining the identity tag of miscellaneous equipment in train system first,
And whether be that the currently active identity tag judges to identity tag, if the currently active identity tag, then it is current to obtain this
The identity tag data of effective identity tag, using the identity tag data as new identity tag data, replace original body
Part flag data, realizes the renewal of identity tag.This programme by between distinct device in same device to identity tag
Replace, the renewal of identity tag is realized, so as to improve the reliability of system.
In information synchronization method disclosed in the present embodiment, after step s 14, it can also include：
Step S15, new identity tag data are stored.
Wherein, the form of storage can be textual form, or the form of database, be not specifically limited herein.
Present embodiment discloses a kind of information synchronization method, its flow chart as shown in Fig. 2 including：
Step S21, the identity tag of miscellaneous equipment in train system is obtained；
Scheme disclosed in the present embodiment be applied to same system in two equipment between, or multiple identical equipment it
Between.It is assumed that angle of this programme from device A, then miscellaneous equipment can be equipment B or equipment C or more in train system.
When there is two identical equipment in same system, equipment B identity tag is obtained, identity tag can be specially
IP address information；
When there is three identical equipment in same system, equipment B identity tag is obtained, simultaneously or sequentially, is obtained
Equipment C identity tag.
Whether the identity tag for step S22, judging miscellaneous equipment in train system is the currently active identity tag；
Whether the identity tag for judging miscellaneous equipment in train system is the currently active identity tag, can be simultaneously to train
The identity tag of miscellaneous equipment is judged in system, can also be judged successively, you can with simultaneously to equipment B and equipment C
Identity tag judged, equipment B and equipment C identity tag can also be judged successively.
, can be with head before whether the identity tag of miscellaneous equipment in judging train system is the currently active identity tag
Authentication first is carried out to the miscellaneous equipment in train system, verifies whether miscellaneous equipment is legitimate device in train system, if
It is then to continue the judgement of the currently active identity tag, otherwise, stops judging.
Step S23, if so, obtaining the identity tag data of the currently active identity tag；
The currently active identity tag is unique, if equipment B is the currently active with there was only the identity tag of one in equipment C
Identity tag, then another is necessarily different；If equipment B and equipment C identity tag are all the currently active identity tags, that
Equipment B and equipment C identity tag necessarily identical.
If the identity tag of miscellaneous equipment is not the currently active identity tag in train system, judge in train system
Whether miscellaneous equipment can communicate, if can be with, send the instruction of synchronizing identity flag data to miscellaneous equipment in train system,
Otherwise, continue to judge whether miscellaneous equipment can communicate in train system.
Step S24, using identity tag data as new identity tag data, original identity tag data is replaced, are
The new unique sequence number of identity tag data distribution；
So that the currently active identity tag is equipment B identity tag as an example：
Assuming that the original identity tag data of device A are Data_A, equipment B identity tag data are Data_New, then
In device A, Data_A is replaced with into Data_New, to realize the synchronization of identity tag, so as in time to the data of equipment room
It is transmitted.
Assuming that the original sequence number of device A is Sequence_A, then new sequence number can be in device A
Sequence_A+1, or other sequence numbers, as long as unique number.
Step S25, the instruction of synchronizing identity flag data is sent extremely with miscellaneous equipment in train system, is made in train system
Miscellaneous equipment judges whether that needs are updated according to sequence number.
Device A sends the instruction of synchronizing identity flag data to equipment B and equipment C, makes equipment B and equipment C according to sequence
Numbering judges whether that needs are updated, and obtains judged result, and operated according to judged result.
Wherein, the instruction of synchronizing identity flag data includes：The identity tag data of device A and the sequence of device A are compiled
Number.
Using the original sequence number of device A as Sequence_A, then new sequence number can be in device A
Exemplified by Sequence_A+1, wherein, equipment B sequence number is Sequence_B, as long as that is, equipment is once updated, sequence
Numbering is automatic to add 1.
Herein, illustrated by taking equipment B as an example：Specifically, equipment B receives the instruction of synchronizing identity flag data, equipment B
Judge itself sequence number and device A sequence number it is whether consistent, if unanimously, illustrating to have synchronously completed, without again
It is updated；When the sequence number of device A is less than equipment B sequence number, then equipment B need not update；When equipment B sequence
Numbering is less than the sequence number of device A, then equipment B identity tag data are updated to the identity tag data of device A, and will
Equipment B sequence number adds 1, realizes synchronized update, i.e. Sequence_A=Sequence_B, Data_A=Data_B.It is synchronous
After the completion of, carry out record storage.
Wherein, before instruction to the equipment synchronized of synchronizing identity flag data is sent, can also include：Judge
Whether miscellaneous equipment can communicate in train system, if can be with, send the instruction of synchronizing identity flag data to train system
Middle miscellaneous equipment, otherwise, continue to judge whether miscellaneous equipment can communicate in train system.
Information synchronization method disclosed in the present embodiment, by obtaining the identity tag of miscellaneous equipment in train system first,
Judge whether identity tag is the currently active identity tag, if so, then obtaining the identity tag number of the currently active identity tag
According to using the identity tag data as new identity tag data, replacing original identity tag data, realize identity tag
Renewal.This programme realizes the renewal of identity tag by the replacement between distinct device in same device to identity tag, from
And improve the reliability of system.Also, using sequence number as whether needing the foundation that updates, and it is non-temporal, and this just keeps away
The difference present on the time in synchronizing process is exempted from, it is ensured that the new and old fallback relationship between identity tag.
Present embodiment discloses a kind of information synchronization system, its structural representation as shown in figure 3, including：
First acquisition unit 31, the marker validation unit 32 being connected with first acquisition unit 31, with marker validation unit 32
Connected second acquisition unit 33, the identity tag updating block 34 being connected with second acquisition unit 33.
First acquisition unit 31 is used for the identity tag for obtaining miscellaneous equipment in train system.
Scheme disclosed in the present embodiment be applied to same system in two equipment between, or multiple identical equipment it
Between.It is assumed that angle of this programme from device A, then miscellaneous equipment can be equipment B or equipment C or more in train system.
When there is two identical equipment in same system, equipment B identity tag is obtained, identity tag can be specially
IP address information；
When there is three identical equipment in same system, equipment B identity tag is obtained, simultaneously or sequentially, is obtained
Equipment C identity tag.
Marker validation unit 32 is used to judge whether the identity tag of miscellaneous equipment in train system to be the currently active identity
Mark, instructed if so, then sending data acquisition to second acquisition unit 33.
Whether the identity tag for judging miscellaneous equipment in train system is the currently active identity tag, can be simultaneously to train
The identity tag of miscellaneous equipment is judged in system, can also be judged successively, you can with simultaneously to equipment B and equipment C
Identity tag judged, equipment B and equipment C identity tag can also be judged successively..
Second acquisition unit 33 is used to receive data acquisition instruction, obtains the identity tag number of the currently active identity tag
According to.
The currently active identity tag is unique, if equipment B is the currently active with there was only the identity tag of one in equipment C
Identity tag, then another is necessarily different；If equipment B and equipment C identity tag are all the currently active identity tags, that
Equipment B and equipment C identity tag necessarily identical.
Identity tag updating block 34 is used for using the identity tag data of the currently active identity tag as new identity mark
Will data, replace original identity tag data.
So that the currently active identity tag is equipment B identity tag as an example：
Assuming that the original identity tag data of device A are Data_A, equipment B identity tag data are Data_New, then
In device A, Data_A is replaced with into Data_New, to realize the synchronization of identity tag, so as in time to the data of equipment room
It is transmitted.
Information synchronization system disclosed in the present embodiment, by obtaining the identity tag of miscellaneous equipment in train system first,
And whether be that the currently active identity tag judges to identity tag, if the currently active identity tag, then it is current to obtain this
The identity tag data of effective identity tag, using the identity tag data as new identity tag data, replace original body
Part flag data, realizes the renewal of identity tag.This programme by between distinct device in same device to identity tag
Replace, the renewal of identity tag is realized, so as to improve the reliability of system.
Further, information synchronization system disclosed in the present embodiment, can also include：With the phase of identity tag updating block 34
Numbering updating block 35 even.
It is the new unique sequence number of identity tag data distribution that numbering updating block 35, which is used for,.
Specifically, assume that the original sequence number of device A is Sequence_A, then new sequence number can in device A
Think Sequence_A+1, or other sequence numbers, as long as unique number.
Wherein, information synchronization system disclosed in the present embodiment, can also include：It is connected with identity tag updating block 34
Memory cell.
Memory cell is used to be stored new identity tag data.
In addition, memory cell can also be connected with numbering updating block 35, storage is updated to sequence number.
Wherein, the form of storage can be textual form, or the form of database, be not specifically limited herein.
Present embodiment discloses a kind of information synchronization system, its structural representation as shown in figure 4, including：
First acquisition unit 41, the marker validation unit 42 being connected with first acquisition unit 41, with marker validation unit 42
Connected second acquisition unit 43, the identity tag updating block 44 being connected with second acquisition unit 43, updated with identity tag
The connected numbering updating block 45 of unit 44, the identity tag judging unit 46 being connected with numbering updating block 45, wherein：
Except with addition to upper embodiment identical structure, the present embodiment also add identity tag judging unit 46.
The instruction that identity tag judging unit 46 is used to send synchronizing identity flag data is extremely set with other in train system
It is standby, miscellaneous equipment in train system is received the instruction of synchronizing identity flag data, and judge whether needs according to sequence number
It is updated, obtains judged result, is operated according to judged result.
Illustrated by taking equipment B as an example：Specifically, device A sends the instruction of synchronizing identity flag data to equipment B, make
Equipment B judges whether that needs are updated according to sequence number, obtains judged result, and operated according to judged result.
Wherein, the instruction of synchronizing identity flag data includes：The identity tag data of device A and the sequence of device A are compiled
Number.
Using the original sequence number of device A as Sequence_A, then new sequence number can be in device A
Exemplified by Sequence_A+1, wherein, equipment B sequence number is Sequence_B, as long as that is, equipment is once updated, sequence
Numbering is automatic to add 1.
Specifically, equipment B receives the instruction of synchronizing identity flag data, equipment B judges the sequence number of itself with setting
Whether standby A sequence number is consistent, if unanimously, illustrating to have synchronously completed, without being updated again；When the sequence of device A is compiled
Number be less than equipment B sequence number, then equipment B need not update；When equipment B sequence number be less than device A sequence number,
Equipment B identity tag data are then updated to the identity tag data of device A, and equipment B sequence number is added 1, are realized
Synchronized update, i.e. Sequence_A=Sequence_B, Data_A=Data_B.After synchronously completing, record storage is carried out.
Wherein, before miscellaneous equipment, can also include into train system in the instruction for sending synchronizing identity flag data：
Judge whether miscellaneous equipment can communicate in train system, if can be so that the instruction of transmission synchronizing identity flag data is to therewith
Synchronous equipment, otherwise, continues to judge whether miscellaneous equipment can communicate in train system.
Information synchronization system disclosed in the present embodiment, by obtaining the identity tag of miscellaneous equipment in train system first,
And whether be that the currently active identity tag judges to identity tag, if the currently active identity tag, then it is current to obtain this
The identity tag data of effective identity tag, using the identity tag data as new identity tag data, replace original body
Part flag data, realizes the renewal of identity tag.This programme by between distinct device in same device to identity tag
Replace, the renewal of identity tag is realized, so as to improve the reliability of system.Whether also, being used as using sequence number is needed
The foundation of renewal, and it is non-temporal, and avoiding problems difference present on the time in synchronizing process, it is ensured that between identity tag
New and old fallback relationship.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
- A kind of 1. information synchronization method, it is characterised in that including：The identity tag of miscellaneous equipment in train system is obtained, the miscellaneous equipment is current to be based on information synchronization method Equipment identical equipment；Whether the identity tag for judging miscellaneous equipment in the train system is the currently active identity tag；If so, obtain the identity tag data of the currently active identity tag；Using the identity tag data as new identity tag data, original identity tag data are replaced.
- 2. according to the method for claim 1, it is characterised in that also include：For the new unique sequence number of identity tag data distribution.
- 3. according to the method for claim 2, it is characterised in that also include：The instruction of transmission synchronizing identity flag data miscellaneous equipment into the train system, makes other in the train system set It is standby to receive the instruction of the synchronizing identity flag data, and judge whether that needs are updated according to the sequence number, obtain Judged result, operated according to the judged result.
- 4. according to the method for claim 3, it is characterised in that in the instruction for sending synchronizing identity flag data to institute State in train system before miscellaneous equipment, in addition to：Judge whether the miscellaneous equipment can communicate；If so, then send synchronizing identity flag data instruction into the train system miscellaneous equipment；Otherwise continue to judge institute State whether miscellaneous equipment in train system can communicate.
- 5. according to the method for claim 1, it is characterised in that also include：The new identity tag data are stored.
- 6. according to the method for claim 1, it is characterised in that also include：When the identity tag of miscellaneous equipment in the train system is not the currently active mark, judge that the miscellaneous equipment whether may be used With communication；If so, then send synchronizing identity flag data instruction into the train system miscellaneous equipment；Otherwise continue to judge institute State whether miscellaneous equipment in train system can communicate.
- A kind of 7. information synchronization system, it is characterised in that including：First acquisition unit, it is connected with the first acquisition unit Marker validation unit, the second acquisition unit being connected with the marker validation unit, the body being connected with the second acquisition unit Part mark updating block, wherein：The first acquisition unit is used to obtaining the identity tag of miscellaneous equipment in train system, and the miscellaneous equipment is and information The current device identical equipment that synchronization system is based on；The marker validation unit is used to judge whether the identity tag of miscellaneous equipment in the train system to be the currently active mark Will, instructed if so, then sending data acquisition to the second acquisition unit；The second acquisition unit is used to receive the data acquisition instruction, obtains the identity mark of the currently active identity tag Will data；The identity tag updating block is used to, using the identity tag data as new identity tag data, replace original Identity tag data.
- 8. system according to claim 7, it is characterised in that also include：It is connected with the identity tag updating block Numbering updating block, wherein：It is the new unique sequence number of identity tag data distribution that the numbering updating block, which is used for,.
- 9. system according to claim 8, it is characterised in that also include：The identity being connected with the numbering updating block Indicate judging unit, wherein：Instruction of the identity tag judging unit for sending synchronizing identity flag data is other into the train system to be set It is standby, make the instruction of the miscellaneous equipment reception synchronizing identity flag data in the train system, and according to the sequence number Judge whether that needs are updated, obtain judged result, operated according to the judged result.
- 10. according to the system described in any one in claim 7-9, it is characterised in that also include：With the identity tag more The connected memory cell of new unit,The memory cell is used to be stored the new identity tag data.
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| CN108255147B (en) * | 2016-12-29 | 2019-12-20 | 比亚迪股份有限公司 | Train gateway device and data communication method |
| CN110874521A (en) * | 2018-08-31 | 2020-03-10 | 深圳迈瑞生物医疗电子股份有限公司 | Analyzer and its sample numbering method and storage medium |
| CN110901691B (en) * | 2018-09-17 | 2021-10-29 | 株洲中车时代电气股份有限公司 | Ferroelectric data synchronization system and method and train network control system |
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| CN104052768A (en) * | 2013-03-13 | 2014-09-17 | 彭涛 | Distributed multi-point synchronization system and synchronization method thereof |
| CN104113535A (en) * | 2014-07-03 | 2014-10-22 | 株洲南车时代电气股份有限公司 | Identity updating method, identity updating system, identity management server and link device |
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