CN108216314A - The distributed remote IO of global function distribution interlock system is realized and communication means - Google Patents
The distributed remote IO of global function distribution interlock system is realized and communication means Download PDFInfo
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- CN108216314A CN108216314A CN201711462273.8A CN201711462273A CN108216314A CN 108216314 A CN108216314 A CN 108216314A CN 201711462273 A CN201711462273 A CN 201711462273A CN 108216314 A CN108216314 A CN 108216314A
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- plate
- interlocking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
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Abstract
A kind of distributed remote IO an embodiment of the present invention provides global function distribution interlock system is realized and communication means, wherein, global function distribution interlock system includes an interlocking host and at least two I/O control units, and the distributed remote IO implementation methods of the global function distribution interlock system include:Each I/O control unit includes two drives and adopts plate and a secure communication plate, and the secure communication plate connects described two drives by controller local area network's CAN interface and adopts plate respectively;The secure communication plate is communicated so as to which two drives of each I/O control unit are adopted by intelligent acess signal net between plate and interlocking host by secure communication plate.The embodiment of the present invention increases the control range (tens kilometers up to a hundred are expanded to from several kilometers) of interlock system equipment, reduces the arrangement quantity of interlock system equipment, and reducing reduces interlock system equipment cost.
Description
Technical field
The present embodiments relate to rail traffic signal system technical fields, and in particular to a kind of global function distribution interlocking
The distributed remote IO of system is realized and communication means.
Background technology
With high-speed railway and the high speed development of urban track traffic, computer interlock system is transported safely as bullet train
Capable last one of barrier is very important.
At present, the interlocking of traditional global function distribution using the pattern at cluster-non-pooled station, place interlocking and lead by cluster
Cable branch cabinet is placed at machine, IO (input and output) control unit, relay assembly cabinet, non-pooled station.Under normal circumstances, a collection
1~3 non-pooled station is had below middle station.
In urban track traffic, distance between sites are closer, traditional IO drive the pattern of adopting can meet demand, still,
Distance between sites farther out in the case of, need to be laid with a large amount of cable if using the pattern at cluster-non-pooled station, and exist
The problem of signal decays and is delayed.
Invention content
In consideration of it, the distributed remote IO that the embodiment of the present invention is intended to provide a kind of global function distribution interlock system is realized
And communication means, with solve in the prior art distance between sites farther out in the case of using cluster-non-pooled station pattern need
A large amount of cable is laid with, and the problem of presence signal attenuation and delay.
In a first aspect, the embodiment of the present invention proposes a kind of distributed remote IO realization sides of global function distribution interlock system
Method, global function distribution interlock system include an interlocking host and at least two I/O control units, including:
Each I/O control unit adopts plate and a secure communication plate comprising two drives, and the secure communication plate passes through controller
Local area network CAN interface connects described two drives and adopts plate respectively;
By the secure communication plate by intelligent acess signal net, plate and connection are adopted so as to two drives of each I/O control unit
It is communicated between lock host by secure communication plate.
Optionally, the secure communication plate includes:Two processors;
Described two processors pass through media independence MII one network interface of Interface Expanding, described two processors respectively
It is utilized respectively respective network interface and signal net is accessed by interchanger;
Plate is adopted in two drives that each processor connects the I/O control unit respectively using two CAN interfaces, using electricity
Gas isolation design.
Optionally, it is connected between described two processors using serial peripheral equipment interface SPI, to realize two-way communication.
Optionally, different power work power supplies is respectively adopted in described two processors, and ground wire is designed using segmentation.
Optionally, the secure communication plate and the interlocking host in the global function distribution interlock system are logical using safety
Letter agreement SFP communicates.
Second aspect, the embodiment of the present invention propose a kind of distributed remote I/O communication side of global function distribution interlock system
Method, including:
For any one processor in above-mentioned secure communication plate, the processor carries out self-test, whether judges the machine
Normal work;
If knowing that the machine works normally by self-test judgement, receive the interlocking data that interlocking host is sent and solved
Code, wherein, if present processor processing code data, another processor processing radix-minus-one complement data in the secure communication plate;
Decoded interlocking data are sent to another processor and are received transmitted by another processor
The decoded interlocking data of another processor;
Judge whether is decoded interlocking data transmitted by itself decoded interlocking data and another processor
Unanimously;
If itself decoded interlocking data of the decoded interlocking data transmitted by with another processor is consistent,
Plate is adopted to drive and another processor sends interlocking drive command respectively, is received the drive and is adopted plate and another processor root
The back production data returned according to interlocking drive command;
Judge the drive adopt back production data that the back production data that plate returned are returned with another processor whether one
It causes;
If it is consistent with the back production data that another processor is returned that the back production data that plate is returned are adopted in the drive, general
The back production data are sent to interlocking.
Optionally, self-test is carried out in the processor, after judging whether the machine works normally, the method further includes:
If fail self-test, by counter records fail self-test number and judge whether continuous fail self-test three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then
By counter O reset.
Optionally, judging itself decoded interlocking data and the decoded interlocking transmitted by another processor
After whether data are consistent, the method further includes:
If itself decoded interlocking data of the decoded interlocking data transmitted by with another processor is inconsistent,
Then by counter records decoded interlocking data number less consistent and judge whether continuous inconsistent three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then
By counter O reset.
Optionally, judging that the drive adopts the back production number that the back production data that plate returned are returned with another processor
Whether after consistent, the method further includes:
If the back production data that plate returned are adopted in the drive and the back production data that another processor is returned is inconsistent,
By counter records back production data number less consistent and judge whether continuous inconsistent three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then
By counter O reset.
As shown from the above technical solution, the distributed remote of global function distribution interlock system provided in an embodiment of the present invention
IO is realized and communication means, and by the way that multiple I/O control units are configured for interlocking host, each I/O control unit is by leading to safely
Letter plate is connected to interlocking host, and the design of hardware and software framework is realized in the requirement for meeting operation security grade, by described in
Secure communication plate is passed through by intelligent acess signal net so as to which two drives of each I/O control unit are adopted between plate and interlocking host
Secure communication plate communicates, and the control range for increasing interlock system equipment as a result, (expands to tens public affairs up to a hundred from several kilometers
In), reduce the arrangement quantity of interlock system equipment, reducing reduces interlock system equipment cost.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structure diagram of existing global function distribution interlock system;
Fig. 2 is a kind of distributed remote IO realization sides for global function distribution interlock system that one embodiment of the invention provides
The flow diagram of method;
Fig. 3 is the improved global function distribution interlock system that the embodiment of the present invention utilizes method shown in Fig. 2 to be realized
Structure diagram;
Fig. 4 is the structure diagram of secure communication plate provided in an embodiment of the present invention;
Fig. 5 is a kind of distributed remote I/O communication side for global function distribution interlock system that one embodiment of the invention provides
The flow diagram of method.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, clear, complete description is carried out to the technical solution in the embodiment of the present invention, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts shall fall within the protection scope of the present invention.
The distributed remote IO of a kind of global function distribution interlock system provided Fig. 2 shows one embodiment of the invention is real
The flow diagram of existing method.As shown in Fig. 2, the distributed remote IO of the global function distribution interlock system of the present embodiment is realized
Method, including:
S1, each I/O control unit adopt plate and a secure communication plate comprising two drives, and the secure communication plate passes through control
Network C AN interfaces in general ability domain processed connect described two drives and adopt plate respectively.
Wherein, the global function distribution interlock system of the present embodiment includes an interlocking host and at least two IO controls are single
Member.
It in a particular application, can be with refering to what is shown in Fig. 4, the secure communication plate can include:Two processors;
Described two processors pass through media independence MII one network interface of Interface Expanding, described two processors respectively
(can refer to the CPU1 and CPU2 in Fig. 4) is utilized respectively respective network interface and accesses signal net by interchanger;
Plate is adopted in two drives that each processor connects the I/O control unit respectively using two CAN interfaces, using electricity
Gas isolation design.Fig. 4 is can refer to, wherein, CPU1 respectively connects a drive of I/O control unit with CPU2 by CAN A interfaces
Plate is adopted, plate is adopted in another drive that CPU1 respectively connects I/O control unit with CPU2 by CAN B interface.It is IO that plate is adopted in two drives
The prior art of control unit, repeats no more.
Specifically, serial peripheral equipment interface SPI connection can be used between described two processors, to realize two-way communication.
Specifically, different power work power supplies is respectively adopted in described two processors, and ground wire is designed using segmentation.
Specifically, safety can be used with the interlocking host in the global function distribution interlock system in the secure communication plate
Communication protocol SFP communicates.
S2, by the secure communication plate by intelligent acess signal net, adopt plate so as to two drives of each I/O control unit
It is communicated between interlocking host by secure communication plate.
It should be noted that in existing global function distribution interlock system, as shown in Figure 1, an original interlocking
An I/O control unit is configured in host, which is connect with interlocking host by CAN lines.The present embodiment can match
Multiple I/O control units are put, each I/O control unit is to be connected to interlocking host by secure communication plate.The prior art
Shortcoming is, when I/O control unit is arranged in position (except such as more than ten kilometers) far from interlocking host, IO to be connected by CAN lines
Control unit is that cost is excessively high with interlocking host, and such technical solution can not be used in practice in engineering.Therefore, this implementation
Example by the way that long-range each I/O control unit is given to increase secure communication plate, realize the cable (e.g., optical fiber) using low cost come into
The purpose to communicate between row I/O control unit and interlocking host.
Fig. 3 shows the structure of improved global function distribution interlock system realized using the present embodiment the method
Schematic diagram.
The distributed remote IO implementation methods of the global function distribution interlock system of the present embodiment, by matching for interlocking host
Multiple I/O control units are put, each I/O control unit is connected to interlocking host by secure communication plate, is meeting operation security
The design of hardware and software framework is realized in the requirement of grade, by the secure communication plate by intelligent acess signal net, thus
Two of each I/O control unit drive to adopt and be communicated between plate and interlocking host by secure communication plate, increase connection as a result,
The control range (tens kilometers up to a hundred are expanded to from several kilometers) of lock system equipment reduces the arrangement number of interlock system equipment
Amount, reducing reduces interlock system equipment cost.
Fig. 5 shows that a kind of distributed remote IO for global function distribution interlock system that one embodiment of the invention provides leads to
The flow diagram of letter method.As shown in figure 5, the distributed remote I/O communication of the global function distribution interlock system of the present embodiment
Method, including:
Lead to for the safety in a kind of distributed remote IO implementation methods of global function distribution interlock system shown in Fig. 2
Believe any one processor in plate:
P1, the processor carry out self-test, judge whether the machine works normally;
If P2, know that the machine works normally by self-test judgement, receive the interlocking data that interlocking host is sent and carry out
Decoding, wherein, if present processor processing code data, another processor processing radix-minus-one complement data in the secure communication plate;
P3, decoded interlocking data are sent to another processor and receive another processor and are sent out
Another decoded interlocking data of processor sent;
P4, judge that itself decoded interlocking data of the decoded interlocking data transmitted by with another processor is
It is no consistent;
If P5, itself decoded interlocking data and the decoded interlocking data one transmitted by another processor
It causes, then adopts plate to drive and another processor sends interlocking drive command respectively, receive the drive and adopt plate and another place
The back production data that reason device is returned according to interlocking drive command;
P6, judge whether the drive adopts back production data that the back production data that plate returned are returned with another processor
Unanimously;
If P7, that the back production data that plate is returned are adopted in the drive is consistent with the back production data that another processor is returned,
The back production data are then sent to interlocking.
Further, self-test, after judging whether the machine works normally, the method are carried out in processor described in step P1
It can also include:
If fail self-test, by counter records fail self-test number and judge whether continuous fail self-test three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then
By counter O reset.
Further, judge itself decoded interlocking data and the decoding transmitted by another processor in step P4
After whether interlocking data afterwards are consistent, the method can also include:
If itself decoded interlocking data of the decoded interlocking data transmitted by with another processor is inconsistent,
Then by counter records decoded interlocking data number less consistent and judge whether continuous inconsistent three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then
By counter O reset.
It is understood that decoded transmitted by itself decoded interlocking data and another processor
When lock data are inconsistent, last decoded interlocking data are also sent to drive than more consistent result and adopted by the processor
Plate.
Further, judge that the drive is adopted the back production data that plate returned and returned with another processor in step P6
Back production data it is whether consistent after, the method can also include:
If the back production data that plate returned are adopted in the drive and the back production data that another processor is returned is inconsistent,
By counter records back production data number less consistent and judge whether continuous inconsistent three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then
By counter O reset.
The distributed remote I/O communication method of the global function distribution interlock system of the present embodiment is for shown in Fig. 2
A kind of any one processing in secure communication plate in the distributed remote IO implementation methods of global function distribution interlock system
Device can increase the control range (tens kilometers up to a hundred are expanded to from several kilometers) of interlock system equipment, reduce interlock system and set
Standby arrangement quantity, reducing reduces interlock system equipment cost.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the present invention
Apply the form of example.Moreover, the computer for wherein including computer usable program code in one or more can be used in the present invention
The computer program production that usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device of function specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
It should be noted that term " comprising ", "comprising" or its any other variant are intended to the packet of nonexcludability
Contain so that process, method, article or equipment including a series of elements not only include those elements, but also including
It other elements that are not explicitly listed or further includes as elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, also there are other identical elements in article or equipment.
In the specification of the present invention, numerous specific details are set forth.Although it is understood that the embodiment of the present invention can
To put into practice without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.Similarly, it should be understood that disclose in order to simplify the present invention and helps to understand respectively
One or more of a inventive aspect, above in the description of exemplary embodiment of the present invention, each spy of the invention
Sign is grouped together into sometimes in single embodiment, figure or descriptions thereof.It however, should not be by the method solution of the disclosure
It releases and is intended in reflection is following:I.e. the claimed invention requirement is than the feature that is expressly recited in each claim more
More features.More precisely, as the following claims reflect, inventive aspect is less than single reality disclosed above
Apply all features of example.Therefore, it then follows thus claims of specific embodiment are expressly incorporated in the specific embodiment,
Wherein each claim is in itself as separate embodiments of the invention.
Above example is merely to illustrate technical scheme of the present invention, rather than its limitations;Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that:It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic;And these are changed or replace
It changes, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of distributed remote IO implementation methods of global function distribution interlock system, global function distribution interlock system include
One interlocking host and at least two I/O control units, which is characterized in that including:
Each I/O control unit adopts plate and a secure communication plate comprising two drives, and the secure communication plate passes through controller local
Network C AN interfaces connect described two drives and adopt plate respectively;
The secure communication plate adopts plate and interlocking host by intelligent acess signal net so as to two drives of each I/O control unit
Between communicated by secure communication plate.
2. according to the method described in claim 1, it is characterized in that, the secure communication plate includes:Two processors;
Described two processors pass through media independence MII one network interface of Interface Expanding, described two processor difference respectively
Signal net is accessed by interchanger using respective network interface;
Plate is adopted in two drives that each processor connects the I/O control unit respectively using two CAN interfaces, using electrically every
From design.
3. according to the method described in claim 2, it is characterized in that, Serial Peripheral Interface (SPI) is used between described two processors
SPI connections, to realize two-way communication.
4. according to the method described in claim 2, it is characterized in that, different power works is respectively adopted in described two processors
Power supply, ground wire are designed using segmentation.
5. according to the method described in claim 1, it is characterized in that, the secure communication plate is interlocked with the global function distribution
Interlocking host in system is communicated using secure communication protocols SFP.
6. a kind of distributed remote I/O communication method of global function distribution interlock system, which is characterized in that including:
For any one processor in the secure communication plate described in any one of claim 2-5, the processor carries out
Self-test, judges whether the machine works normally;
If knowing that the machine works normally by self-test judgement, receive the interlocking data that interlocking host is sent and be decoded,
In, if present processor processing code data, another processor processing radix-minus-one complement data in the secure communication plate;
Decoded interlocking data are sent to another processor and are received described transmitted by another processor
Another decoded interlocking data of processor;
Judge whether itself decoded interlocking data of the decoded interlocking data transmitted by with another processor is consistent;
If itself decoded interlocking data of the decoded interlocking data transmitted by with another processor is consistent, to drive
It adopts plate and another processor sends interlocking drive command respectively, receive the drive and adopt plate and another processor according to connection
The back production data that lock drive command is returned;
Judge that the back production data that plate returned are adopted in the drive and whether the back production data that another processor is returned be consistent;
If it is consistent with the back production data that another processor is returned that the back production data that plate is returned are adopted in the drive, described in general
Back production data are sent to interlocking.
7. according to the method described in claim 6, it is characterized in that, in processor progress self-test, judge the machine whether just
Often after work, the method further includes:
If fail self-test, by counter records fail self-test number and judge whether continuous fail self-test three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then will meter
Number device is reset.
8. according to the method described in claim 6, it is characterized in that, judge itself it is decoded interlocking data with it is described another
After whether decoded interlocking data transmitted by processor are consistent, the method further includes:
If itself decoded interlocking data of the decoded interlocking data transmitted by with another processor is inconsistent, lead to
It crosses the decoded interlocking data of counter records number less consistent and judges whether continuous inconsistent three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then will meter
Number device is reset.
9. according to the method described in claim 6, it is characterized in that, judge it is described drive adopt back production data and the institute that plate is returned
State back production data that another processor returned it is whether consistent after, the method further includes:
If the back production data that plate returned are adopted in the drive and the back production data that another processor is returned is inconsistent, pass through
Counter records back production data number less consistent simultaneously judges whether continuous inconsistent three times;
If so, the secure communication plate is enabled to delay machine, record failure simultaneously sends failure cause to maintenance system, if it is not, then will meter
Number device is reset.
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