CN108092864A - L EU equipment processing board and communication processing device and method thereof - Google Patents
L EU equipment processing board and communication processing device and method thereof Download PDFInfo
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- CN108092864A CN108092864A CN201711107340.4A CN201711107340A CN108092864A CN 108092864 A CN108092864 A CN 108092864A CN 201711107340 A CN201711107340 A CN 201711107340A CN 108092864 A CN108092864 A CN 108092864A
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- 238000012545 processing Methods 0.000 title claims abstract description 74
- 230000006854 communication Effects 0.000 title claims abstract description 42
- 238000004891 communication Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000010365 information processing Effects 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 12
- 238000012795 verification Methods 0.000 claims description 12
- 230000006870 function Effects 0.000 claims description 7
- 238000003672 processing method Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000000153 supplemental effect Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 238000007726 management method Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40013—Details regarding a bus controller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- General Health & Medical Sciences (AREA)
- Hardware Redundancy (AREA)
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Abstract
The utility model provides an L EU equipment processing board and a communication processing device and a method thereof, the device comprises a configuration information processing module used for receiving configuration information and checking, an Ethernet data processing module used for receiving data sent by external equipment through an Ethernet interface and storing the data into a first cache queue, polling a second cache queue and sending the cache data of the second cache queue to the external equipment through the Ethernet interface, a CAN bus data processing module used for receiving message data from a security processor through a CAN bus and storing the message data into the second cache queue, polling the first cache queue and sending the cache data of the first cache queue to the security processor through the CAN bus, bringing the processing of a CAN bus communication protocol and the Ethernet communication protocol into a non-security processor, reducing the complexity of the security processor and improving the security and the reliability of the processing board.
Description
Technical field
This application involves Train Detection and Identification apparatus field more particularly to a kind of LEU equipment processing boards and its communication process
Apparatus and method.
Background technology
Transponder Transmission system (Balise Transmission SubSystem, BTS) is a kind of based on point information biography
Defeated secure transmission system realizes the security information transmission between equipment or ground installation and mobile unit by road.Transponder passes
Defeated system includes transponder transport module (Balise Transmission Module, BTM) and car antenna unit (AU), has
Source transponder (Controlled Balise, CB) and passive balise (Fixed Balise, FB), Ground Electronics Unit (LEU)
Three elements.
LEU equipment considers according to factors such as function module independence, security and maintainabilitys, by secure and non-secure list
Member, which is properly isolated from, to be separated, and strong and weak signals, digital simulation are separately designed.Mainly include collection plate by board form, processing board (contains
Communication interface), output board, monitoring board, switch boards and motherboard, as shown in Figure 1, wherein, collection plate, switch boards are according to configuration needs
It selects.
The content of the invention
In view of this, the embodiment of the present application provides a kind of LEU equipment processing board and its communication processing apparatus and method, uses
To solve the technical issues of LEU equipment safeties processor complexity is excessively high in the prior art.
According to the one side of the embodiment of the present application, a kind of communication processing apparatus of LEU equipment processing board is provided, is wrapped
It includes：Configuration information processing module, for receiving configuration information and being verified；Ethernet data processing module, for by with
Too network interface receives the data sent by external equipment and stores to the first buffer queue, the second buffer queue of poll and by described in
The data cached of second buffer queue is sent to external equipment by Ethernet interface；CAN bus data processing module, for leading to
It crosses CAN bus to receive the message data from safe processor and store to the second buffer queue, the first buffer queue of poll is simultaneously
The data cached of first buffer queue is sent to safe processor by CAN bus.
According to the another aspect of the embodiment of the present application, a kind of LEU equipment processing board is provided, including：Two safe handlings
Device, two non-secure processor, two CAN bus, two CAN transceivers and a signal isolator；The non-security processing
Device is used for the communication process of the LEU equipment processing board, transmits data by CAN bus and safe processor, passes through Ethernet
Interface transmits data with external equipment；
Wherein, the first safe processor and the second safe processor are respectively connected to the first CAN bus, by the signal every
From the CAN bus data processing module that the first non-secure processor is connected to after device and the first CAN transceiver；First safe handling
Device and the second safe processor are respectively connected to the second CAN bus, are connected after the signal isolator and the second CAN transceiver
To the CAN bus data processing module of the second non-secure processor.
According to the another aspect of the embodiment of the present application, a kind of communication processing method of LEU equipment processing board is provided, is wrapped
It includes：Verification configuration information simultaneously starts communication process；By Ethernet interface receive by external equipment send data and store to
First buffer queue, the second buffer queue of poll are simultaneously sent the data cached of the second buffer queue by Ethernet interface
To external equipment；Message data from safe processor is received by CAN bus and is stored to the second buffer queue, poll the
The data cached of first buffer queue is simultaneously sent to safe processor by one buffer queue by CAN bus.
The advantageous effect of the embodiment of the present application includes：LEU equipment processing board by safe processor and non-secure processor every
From, and bring the processing of CAN bus communication protocol and ethernet communication protocol into non-secure processor, by non-secure processor
As the communication processor of processing board, the complexity of safe processor is reduced, improves the safety and reliability of processing board.
Description of the drawings
By the description referring to the drawings to the embodiment of the present application, the above-mentioned and other purpose of the application, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is LEU equipment inside structure schematic diagrames；
Fig. 2 is the processor architecture principle schematic of LEU equipment processing board provided by the embodiments of the present application；
Fig. 3 is the program module schematic diagram of the communication processor of the embodiment of the present application LEU equipment processing boards；
Fig. 4 is the sequential scheduling process schematic of the communication processing method of the embodiment of the present application LEU equipment processing boards.
Specific embodiment
The application is described below based on embodiment, but the application is not restricted to these embodiments.Under
Text is detailed to describe some specific detail sections in the datail description of the application.Do not have for a person skilled in the art
The description of these detail sections can also understand the application completely.In order to avoid obscuring the essence of the application, well known method, mistake
There is no narrations in detail for journey, flow, element and circuit.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise throughout the specification and claims " comprising ", "comprising" etc. are similar
Word should be construed to the meaning included rather than exclusive or exhaustive meaning；That is, it is containing for " including but not limited to "
Justice.
In the description of the present application, it is to be understood that term " first ", " second " etc. are only used for description purpose, without
It is understood that indicate or imply relative importance.In addition, in the description of the present application, unless otherwise indicated, the meaning of " multiple "
It is two or more.
LEU equipment processing board provided by the embodiments of the present application isolates safe processor with non-secure processor, and CAN is total
Non-secure processor is brought in the processing of line communication protocol and ethernet communication protocol into, using non-secure processor as processing board
Communication processor reduces the complexity of safe processor, improves the safety and reliability of processing board.
As shown in Fig. 2, processing board includes two safe processors and two non-secure processor, safe processor and non-peace
It is communicated between full processor by the CAN bus of two redundancies.First safe processor and the second safe processor difference
The first CAN bus (CAN1) is accessed, the first CAN transceiver is accessed after isolating by signal isolator, is connected to the first non-peace
Full processor.First safe processor and the second safe processor are respectively connected to the second CAN bus (CAN2), pass through signal isolation
The second CAN transceiver is accessed after device isolation, is connected to the second non-secure processor.Non-secure processor is by Ethernet and outside
Portion's equipment transmission data.
Non-secure processor is all brought in the processing of processing board communication protocol into, by non-secure processor as processing board
Communication processor realizes that the data protocol of Ethernet and CAN bus is converted.Communication data processing framework figure such as Fig. 3 of processing board
Shown, the framework of the non-secure processor as communication processor mainly includes following procedure module.
Configuration information processing module, for receiving configuration information and being verified.
When processing board starts, configuration information processing module reads configuration information from nonvolatile storage and will carry out school
It tests；If verification passes through, complete to start using the configuration information read；If verification using default configuration by not believed
Breath is completed to start.
Configuration information includes the configuration informations such as ethernet ip address, subnet mask, gateway address, port numbers.
In non-secure processor operational process, configuration information processing module is received by CAN bus under safe processor
The configuration information of hair, compared with the configuration information that nonvolatile storage preserves；It is continued to run with if consistent；If differ
It causes, is then then resetted the configuration information update received into nonvolatile storage, matched somebody with somebody after reset using updated
Confidence breath starts.
Ethernet data processing module, the main forwarding capability for completing ethernet interface data.At Ethernet data
Reason module receives the data sent by external equipment by Ethernet interface and stores to the first buffer queue, for being sent to
CAN bus.The second buffer queue of poll, if the data non-empty of the second buffer queue, by the caching number of the second buffer queue
External equipment is sent to according to by Ethernet interface.The data cached in second buffer queue come from CAN bus.
External equipment can be that train control center (TCC) or station computer chain (CBI) communicate according to concrete application scene
Equipment or other equipment that information can be sent to LEU equipment.
CAN bus data processing module, it is main to complete CAN interface communication data forwarding capability.At CAN bus data
Reason module receives the message data from safe processor by CAN bus and stores to the second buffer queue, so as to by ether
Net processing module is sent when being polled to data cached.CAN bus data processing module the first buffer queue of poll, if the
One buffer queue non-empty, data cached by the first buffer queue are sent to safe processor by CAN bus.
CAN bus data processing module receives message data and configuration information respectively from CAN bus, and message data storage is arrived
Second buffer queue, configuration information store the global buffer to non-secure processor.Second buffer queue is to be exclusively used in storage CAN
The independent cache area domain of bus data, the first buffer queue are the independent cache area domains for being exclusively used in storage Ethernet data, to protect
The CAN bus of card and the forwarding of Ethernet data.
The framework of non-secure processor still further comprises log information processing module, is generated for caching in operational process
Log information, and pass through universal asynchronous receiving-transmitting transmitter (Universal Asynchronous Receiver/
Transmitter, UART) it is sent to the monitoring board of LEU equipment.
The framework of non-secure processor still further comprises supplemental functionality, for completing Clock management, equipment self-inspection
And watchdog function.
Ethernet data processing module and CAN bus data processing module all receive corresponding data using interrupt mode,
Supplemental functionality receives clock information also by clock interrupt, to facilitate and simplify the establishment of program, improves non-security processing
The efficiency of device.
The communication processing program of non-secure processor using it is embedded, by different level, the design philosophy of sub-module, periodically
Handle data.It does not use operating system, therefore may be designed as anterior-posterior platform form, i.e., is wirelessly followed with one in main functions
Ring periodically carries out each task scheduling.Its sequential scheduling process is as shown in figure 4, each task has respective trigger condition；
If condition meets, it is called, is then unsatisfactory for, be suspended and do not perform.
Above procedure perform communication processing method in, from read configuration information to start self-test during, if
It is when program starts, then configuration information is read from nonvolatile storage and will be verified；If verification passes through, use
The configuration information of reading is completed to start；If verification using default configuration information by not completing to start.If in program
In operational process, then the configuration information that issues of safe processor is received by CAN bus, the configuration preserved with nonvolatile storage
Information is compared；It is continued to run with if consistent；If it is inconsistent, the configuration information update received is deposited to non-volatile
In reservoir, started after reset using updated configuration information.
In periodic data handling procedure, Ethernet data processing module is received by Ethernet interface and set by outside
Data that preparation is sent simultaneously are stored to the first buffer queue, the second buffer queue of poll and by the data cached logical of the second buffer queue
It crosses Ethernet interface and is sent to external equipment；CAN bus data processing module is received by CAN bus from safe processor
Message data is simultaneously stored to the second buffer queue, and the first buffer queue of poll simultaneously passes through the data cached of the first buffer queue
CAN bus is sent to safe processor.In addition, Added Management module also receives clock information by clock interrupt, clock is completed
Management；Log information processing module then caches the log information generated in operational process, and passes through UART and be sent to LEU equipment
Monitoring board.The tasks such as CAN bus data sending, Ethernet data are sent, configuration verification, log processing are in a manner of round-robin scheduling
It is triggered and handles.
It will be understood by those skilled in the art that embodiments herein can be provided as method, apparatus (equipment), therefore, this
Application can be used complete hardware embodiment, complete software embodiment or combine software and hardware in terms of embodiment form.And
And usable storage medium (the including but not limited to disk for wherein including program code in one or more can be used in the application
Memory, CD-ROM, optical memory etc.) on the form of program product implemented.
The application be with reference to according to the method, apparatus (equipment) of the embodiment of the present application and the flow chart of program product and/or
Block diagram describes.It should be understood that can by program instruction realize flowchart and/or the block diagram in each flow and/or block,
And the flow in flowchart and/or the block diagram and/or the combination of box.These program instructions can be provided to Embedded Processor
Or the processor of other programmable data processing devices is to generate a machine so that passes through the place of programmable data processing device
The instruction generation that reason device performs is used to implement in one flow of flow chart or multiple flows and/or one box or multiple of block diagram
The device for the function of being specified in box.
These program instructions may also be stored in programmable data processing device can be guided to work in a specific way readable and deposit
In reservoir so that the instruction being stored in readable memory generates the manufacture for including command device, which realizes
The function of being specified in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes.
These program instructions can be also loaded into programmable data processing device so that a system is performed on programmable device
Row operating procedure is to generate the processing of realization, so as to which the instruction offer performed on programmable device is used to implement in flow chart one
The step of function of being specified in a flow or multiple flows and/or one box of block diagram or multiple boxes.
The foregoing is merely the preferred embodiments of the application, are not limited to the application, for those skilled in the art
For, the application can have various modifications and changes.All any modifications made within spirit herein and principle are equal
Replace, improve etc., it should be included within the protection domain of the application.
Claims (10)
1. a kind of communication processing apparatus of LEU equipment processing board, which is characterized in that including：
Configuration information processing module, for receiving configuration information and being verified；
Ethernet data processing module, for receiving the data sent by external equipment by Ethernet interface and storing to first
The data cached of second buffer queue is simultaneously sent to outside by buffer queue, the second buffer queue of poll by Ethernet interface
Portion's equipment；
CAN bus data processing module, for receiving the message data from safe processor by CAN bus and storing to the
The data cached of first buffer queue is simultaneously sent to peace by two buffer queues, the first buffer queue of poll by CAN bus
Full processor.
2. communication processing apparatus according to claim 1, which is characterized in that the communication processor further includes：
Log information processing module for caching the log information generated in operational process, and passes through UART and is sent to LEU equipment
Monitoring board.
3. communication processing apparatus according to claim 1, which is characterized in that the communication processor further includes：
Supplemental functionality, for completing Clock management, equipment self-inspection and watchdog function.
4. communication processing apparatus according to claim 1, which is characterized in that the configuration information processing module is further used
In：
Configuration information is read from nonvolatile storage on startup and will be verified；If verification passes through, using reading
Configuration information complete start；If verification using default configuration information by not completing to start；
The configuration information issued in the process of running by CAN bus reception safe processor, preserves with nonvolatile storage
Configuration information is compared；It is continued to run with if consistent；If it is inconsistent, by the configuration information update received to it is non-easily
It loses in memory, is started after reset using updated configuration information.
5. communication processing apparatus according to claim 1, which is characterized in that the Ethernet data processing module and CAN
Bus data processing module receives data using interrupt mode.
6. communication processing apparatus according to claim 1, which is characterized in that the external equipment is train control center or station
The chain communication equipment of computer.
7. a kind of LEU equipment processing board, which is characterized in that including：Two safe processors, two non-secure processor, two
CAN bus, two CAN transceivers and a signal isolator；The non-secure processor is for the LEU equipment processing board
Communication process, data are transmitted by CAN bus and safe processor, and data are transmitted by Ethernet interface and external equipment；
Wherein, the first safe processor and the second safe processor are respectively connected to the first CAN bus, by the signal isolator
With the CAN bus data processing module that the first non-secure processor is connected to after the first CAN transceiver；First safe processor and
Second safe processor is respectively connected to the second CAN bus, and is connected to after the signal isolator and the second CAN transceiver
The CAN bus data processing module of two non-secure processor.
8. a kind of communication processing method of LEU equipment processing board, which is characterized in that including：
Verification configuration information simultaneously starts communication process；
The data sent by external equipment are received by Ethernet interface and are stored to the first buffer queue, poll second caches team
It arranges and the data cached of the second buffer queue is sent to external equipment by Ethernet interface；It is received by CAN bus
Message data from safe processor is simultaneously stored to the second buffer queue, the first buffer queue of poll and cached described first
The data cached of queue is sent to safe processor by CAN bus.
9. communication processing method according to claim 8, which is characterized in that the method further includes：
The log information generated in caching operational process, and pass through the monitoring board that UART is sent to LEU equipment.
10. communication processing method according to claim 8, which is characterized in that verification configuration information simultaneously starts communication process
Including：
Configuration information is read from nonvolatile storage on startup and will be verified；If verification passes through, using reading
Configuration information complete start；If verification using default configuration information by not completing to start；
The configuration information issued in the process of running by CAN bus reception safe processor, preserves with nonvolatile storage
Configuration information is compared；It is continued to run with if consistent；If it is inconsistent, by the configuration information update received to it is non-easily
It loses in memory, is started after reset using updated configuration information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107340.4A CN108092864B (en) | 2017-11-10 | 2017-11-10 | LEU equipment processing board and communication processing device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107340.4A CN108092864B (en) | 2017-11-10 | 2017-11-10 | LEU equipment processing board and communication processing device and method thereof |
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| CN108092864A true CN108092864A (en) | 2018-05-29 |
| CN108092864B CN108092864B (en) | 2020-04-17 |
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Cited By (6)
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| CN109795283A (en) * | 2018-12-15 | 2019-05-24 | 阿尔特汽车技术股份有限公司 | A kind of Air Condition Compressor for Electric Vehicle control method based on two-way CAN bus |
| CN110376876A (en) * | 2019-07-19 | 2019-10-25 | 北京交大思诺科技股份有限公司 | A kind of safety computer platform that double systems are synchronous |
| CN110834655A (en) * | 2018-08-17 | 2020-02-25 | 中车株洲电力机车研究所有限公司 | Train data transmission method, system, medium and equipment |
| CN112532583A (en) * | 2020-10-30 | 2021-03-19 | 浙江工业大学 | Method for realizing service under CAN bus environment |
| CN114244878A (en) * | 2021-12-15 | 2022-03-25 | 上海励驰半导体有限公司 | Equipment distributed access system and method under heterogeneous multi-core environment |
| CN115001963A (en) * | 2022-05-05 | 2022-09-02 | 武汉光迅信息技术有限公司 | Information configuration method and device based on multi-configuration storage communication equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110834655A (en) * | 2018-08-17 | 2020-02-25 | 中车株洲电力机车研究所有限公司 | Train data transmission method, system, medium and equipment |
| CN109795283A (en) * | 2018-12-15 | 2019-05-24 | 阿尔特汽车技术股份有限公司 | A kind of Air Condition Compressor for Electric Vehicle control method based on two-way CAN bus |
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| CN112532583A (en) * | 2020-10-30 | 2021-03-19 | 浙江工业大学 | Method for realizing service under CAN bus environment |
| CN114244878A (en) * | 2021-12-15 | 2022-03-25 | 上海励驰半导体有限公司 | Equipment distributed access system and method under heterogeneous multi-core environment |
| CN114244878B (en) * | 2021-12-15 | 2024-04-26 | 上海励驰半导体有限公司 | Device distributed access system and method in heterogeneous multi-core environment |
| CN115001963A (en) * | 2022-05-05 | 2022-09-02 | 武汉光迅信息技术有限公司 | Information configuration method and device based on multi-configuration storage communication equipment |
| CN115001963B (en) * | 2022-05-05 | 2024-01-05 | 武汉光迅信息技术有限公司 | Information configuration method and device based on multi-configuration storage communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108092864B (en) | 2020-04-17 |
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