CN103986714B - Bus marco network insertion AVB networks are acted on behalf of into implementation method and device - Google Patents
Bus marco network insertion AVB networks are acted on behalf of into implementation method and device Download PDFInfo
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Abstract
The present invention relates to bus marco network insertion AVB networks are acted on behalf of into implementation method and device.The device is controlled based on 1722.1 controllers, and it includes bus marco agency, AVB interchangers, bus gateway and converter；AVB interchangers have EBI and Ethernet interface；Bus marco agency is installed in AVB interchangers, or is installed in AVB interchangers and converter；Outside bus is connected with EBI, or is connected by bus gateway with AVB interchangers, or is connected by converter with AVB interchangers；Bus marco agency includes 1722a parsing modules, stream service recipients module, stream Service provider module, connection unit, inflow operation table and outflow operation table.Using AVB networks as core network, using bandwidth these features of the ripe link technology of Ethernet, simple networking plan and abundance, the data transfer between bus marco network is realized, reaches the various types of data of load, compatibility is improved, so as to reach the purpose for reducing production maintenance cost.
Description
Technical field
The present invention relates to Ethernet audio frequency and video bridging technology (Audio/Video Bridging, abbreviation AVB).
Background technology
IEEE1722a, IEEE1722.1, IEEE802.1QAT, IEEE802.QAV, IEEE802.1AS describe audio and regarded
How the action of frequency network standard protocol and data on time sensitivity network controls.Stream specified in IEEE1722.1 agreements
ISP (talker) and stream service recipients (Listener) are attached to AVB networks, and can identify and handle AVB numbers
According to the terminal device of frame.Stream ISP (talker) is the initiating equipment of data flow, and such as a microphone collects voice shape
AVB networks are streamed into audio, stream service recipients (Listener) are the recipients of data flow, and it is obtained from AVB networks
Data flow, and play out or make relevant action, such as loudspeaker.AVB networks are by AVB interchangers and miscellaneous terminal
Equipment forms, and its network construction form is identical with Ethernet networking.AVB interchangers are the ethernet switchs for realizing AVB functions,
Also sometimes referred to as AVB bridgers.Talker and Listener can be any equipment for being connected to AVB networks, uniquely
They can identify AVB data frame for Seeking Truth, and data of the processing from AVB networks of having the ability.
Bus marco network (Control Bus), hereinafter referred to as CB herein, including protocol type have CAN, LIN, MOST
And FlexRay, the scope of application is very extensive, and typical application is Industry Control, automobile control, Mechanical course, aircraft control
Deng.
The network of traditional CB access trunks, generally more complicated, poor expandability, docking capacity is poor, to the class of data
Type requirement is strict single-minded.
The content of the invention
An object of the present invention be to propose it is a kind of bus marco network insertion AVB networks are acted on behalf of into implementation method,
It can solve the problems, such as networking complexity and poor expandability.
The second object of the present invention be to propose it is a kind of bus marco network insertion AVB networks are acted on behalf of into realization device,
It can solve the problems, such as networking complexity and poor expandability.
One of to achieve these goals, the technical solution adopted in the present invention is as follows：
Bus marco network insertion AVB networks are acted on behalf of into implementation method, it is controlled based on 1722.1 controllers, and it includes
Following steps：
Step 1, receive the bus data frame from EBI and/or the Ether frame and 1722a from Ethernet interface
Data frame, if bus data frame, then step 2 is performed to step 4, if Ether frame, then step 5 is performed, if 1722a data
Frame, then step 6 is performed to step 8；
Wherein, the bus data frame, Ether frame and 1722a data frames are accessed by a corresponding connection unit respectively, institute
The information that connection unit is used to describe a corresponding physical interface is stated, the physical interface includes EBI and Ethernet connects
Mouthful；
Step 2, the bus data frame accessed according to connection unit, distribute the source ID of bus data frame one；
Step 3, according to the source ID, default data processing actions in response outflow operation table；The outflow operation table
In be preset with data execution action corresponding with source ID and data sending destination location；
Step 4, the bus data frame is packaged into by the 1722a numbers propagated in AVB networks by 1722a parsing modules
According to frame, and sent in a manner of flowing ISP by Ethernet interface to AVB networks；
Step 5, according to connection unit access Ether frame in bus data frame, distribute the source ID of bus data frame one,
And step 3 is performed to step 4；
Step 6, judge whether the destination address of the 1722a data frames belongs to and listen to address, if it is not, then directly will described in
1722a data frames are forwarded to the processor of AVB interchangers, if so, then performing step 7；
Step 7, by 1722a parsing modules the 1722a data frames are parsed, obtain that there is the total of source id information
Line data frame, the bus data frame enter connection unit in a manner of flowing service recipients；
Step 8, according to the source ID, response flows into default data processing actions in operation table；It is described to flow into operation table
In be preset with data execution action corresponding with source ID and data sending destination location.
Preferably, in step 3, flowing out the data execution action of operation table includes sending, is forwarded to CPU and discarding；
There are following steps between step 3 and step 4：
If transmission, then step 4 is performed；If CPU is forwarded to, then the bus data frame is sent to AVB interchangers
Processor so that the processor of the AVB interchangers is handled the bus data frame according to deliberate action；If losing
Abandon, then the bus data frame is abandoned, disregarded.
Preferably, in step 8, flowing into the data execution action of operation table includes sending, is forwarded to CPU, broadcasts and lose
Abandon；
After the step 8, also following steps：
If transmission, then the bus data frame is sent to purpose bus corresponding with sending data destination address and connect
Mouthful；If CPU is forwarded to, then the bus data frame is sent to the processor of AVB interchangers, so that the AVB interchangers
Processor the bus data frame is handled according to deliberate action；If broadcast, then simultaneously by the bus data frame
Send to all local EBIs and the processor of AVB interchangers；If discarding, then the bus data frame is abandoned,
Disregard.
It is further preferred that the deliberate action comprises at least：Bus data frame after processing is operated into table according to outflow
In default data processing actions handled.
Preferably, bus of the EBI directly with outside is connected.
Preferably, the Ethernet interface is connected by bus gateway or converter with the bus of outside, wherein, described turn
Parallel operation is used to that row format conversion will to be entered between different types of bus data frame.
Preferably, the bus data frame includes CAN data frames, LIN data frames, MOST data frames and FlexRay data
One or more in frame.
Preferably, IPV6 packets or IPV4 packets are encapsulated in Ether frame as load.In order to achieve the above object
Two, the technical solution adopted in the present invention is as follows：
Bus marco network insertion AVB networks are acted on behalf of into realization device, it is controlled based on 1722.1 controllers, and it includes
Bus marco agency, AVB interchangers, bus gateway and/or converter；The AVB interchangers have EBI and/or ether
Network interface；The bus marco agency is installed in AVB interchangers, or is installed in AVB interchangers and converter；Outside
Bus is connected with EBI, and/or is connected by bus gateway with AVB interchangers, and/or is exchanged by converter with AVB
Machine connects；Wherein, the converter is used to that row format conversion will to be entered between different types of bus data frame；
The flow chart of data processing such as the generation by bus marco network insertion AVB networks of the present invention of the bus marco agency
Manage described in implementation method.
The present invention has the advantages that：
Using AVB networks as core network, the ripe link technology of Ethernet, simple networking plan and abundance are utilized
These features of bandwidth, realize the data transfer between bus marco network, reach the various types of data of load, improve compatible
Property, so as to reach the purpose for reducing production maintenance cost.
Brief description of the drawings
Bus marco network insertion AVB networks are acted on behalf of the direct-connected of realization device by Fig. 1 for present pre-ferred embodiments
Structure；
Fig. 2 is one kind for acting on behalf of realization device by bus marco network insertion AVB networks of present pre-ferred embodiments
Loosely connected structure；
Bus marco network insertion AVB networks are acted on behalf of the another of realization device by Fig. 3 for present pre-ferred embodiments
The loosely connected structure of kind；
Fig. 4 is the ether for acting on behalf of realization device by bus marco network insertion AVB networks of present pre-ferred embodiments
Frame flows into processing schematic diagram；
Fig. 5 is the bus for acting on behalf of realization device by bus marco network insertion AVB networks of present pre-ferred embodiments
Data frame flows into processing schematic diagram；
Fig. 6 is the flow for acting on behalf of implementation method by bus marco network insertion AVB networks of present pre-ferred embodiments
Figure；
Fig. 7 is the connection unit descriptor of present pre-ferred embodiments；
Fig. 8 is that the inflow of present pre-ferred embodiments operates table；
Fig. 9 is that the outflow of present pre-ferred embodiments operates table；
Figure 10 is that the first introduces a collection ID and the AVB stream of present pre-ferred embodiments combine；
Figure 11 is that the second introduces a collection ID and the AVB stream of present pre-ferred embodiments combine；
Figure 12 is that the third source ID and the AVB stream of present pre-ferred embodiments combine；
Figure 13 is the flow chart of the order that bus marco agency is handled from 1722.1 controllers of present pre-ferred embodiments；
Figure 14 is the management flow chart that 1722.1 controllers of present pre-ferred embodiments are acted on behalf of to bus marco；
Figure 15 is that the controller of use 1722.1 of present pre-ferred embodiments makes bus marco agency realize stability and letter
Cease synchronous flow chart；
Figure 16 is the synchronous flow chart that the bus marco of present pre-ferred embodiments is acted on behalf of；
Figure 17 is the dynamic flow diagram of 1722.1 controllers of present pre-ferred embodiments.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further.
With reference to shown in Fig. 1 to Fig. 5, the present embodiment discloses a kind of agency by bus marco network insertion AVB networks and realized
Device, it is controlled based on 1722.1 controllers, and 1722.1 controller includes 1722.1 protocol proxy modules and 1722.1 controls
System and management data frame module, 1722.1 controllers are prior art.The realization device of acting on behalf of of the present embodiment specifically includes bus
Control agent, AVB interchangers, bus gateway and/or converter；There is the AVB interchangers EBI and/or Ethernet to connect
Mouthful；The bus marco agency is installed in AVB interchangers, or is installed in AVB interchangers and converter；Outside bus
It is connected with EBI, and/or is connected by bus gateway with AVB interchangers, and/or is connected by converter and AVB interchangers
Connect；Wherein, the converter is used to that row format conversion will to be entered between different types of bus data frame.The bus can be
CAN, LIN buses, MOST buses and FlexRay buses.
As shown in Figure 1 to Figure 3, the attachment structure between AVB interchangers and bus has three kinds.
As shown in figure 1, direct coupled structure, alternatively referred to as locality connection mode, all types of buses pass through EBI and AVB
Interchanger is directly connected to.Bus marco agency can be run on the processor of AVB interchangers in the form of pure software；Can also
Partial function is realized that another part is realized by hardware by software；Fpga logic can also be utilized to realize.Bus marco agency can be with
Manage multiple controlling bus for being connected to AVB interchangers simultaneously.AVB interchangers are directly received from the total of various types of buses
Line data frame (including CAN data frames, LIN data frames, MOST data frames and FlexRay data frames).
As shown in Fig. 2 a kind of loosely connected mode, bus passes through corresponding gateway (such as CAN gateways, LIN gateways, MOST
Gateway and FlexRay gateways) it is connected with AVB interchangers, AVB interchangers receive the Ether frame from gateway.Bus marco is acted on behalf of
Indirect agency is carried out to substantial amounts of bus.By loosely connected, AVB interchangers can be to more higher protocol layer control signal (such as net
Network layers IPV4/IPV6, transport layer TCP/IP) access AVB networks remote bus be uniformly controlled, effectively improve various letters
Mutual operational capacity between breath system.
As shown in figure 3, another loosely connected mode, bus are connected by converter with AVB interchangers.Converter is used for
The bus data frame that bus inputs is converted into different types of bus data frame, CAN data frames are such as converted into LIN data
Frame.Converter can be unifunctional, and any 2 kinds are changed between CAN, LIN, MOST, FlexRay as a converter is only single
The mutual conversion of data frame；Can also be multi-functional, a such as converter can change LIN, MOST, CAN, in FlexRay
Three kinds of data above frames are mutually changed.The direct-connected AVB interchangers side of converter can be Ether frame or 1722a data
Frame, therefore data format has 4 kinds：IPV4 packets, IPV6 packets, Ether frame, 1722a data frames.When converter is bus
In the case that data frame is converted into 1722a data frames, the partial function of bus marco agency is then applied to converter naturally.
If connected mode is loosely connected, bus marco agency should establish TCP/IP and be connected to gateway or converter, with
Ensure that bus marco agency is bus marco network offering services.
With reference to Fig. 4 and Fig. 5, the bus marco agency includes 1722a parsing modules, stream service recipients module, stream clothes
Business supplier module, connection unit, flow into operation table and outflow operation table.Wherein, 1722a parsing modules, stream service recipients
Module, stream Service provider module are same as the prior art, and connection unit, inflow operation table and outflow operation table are then this implementation
The improvements of example.
The flow chart of data processing of bus marco agency is as shown in fig. 6, i.e. the present embodiment connects bus marco network
Enter AVB networks act on behalf of implementation method can be encapsulated as bus marco agency, it controls also based on 1722.1 controllers, that is, is based on
The control of IEEE1722.1 agreements, it comprises the following steps：
Step S1, the bus data frame from EBI and the Ether frame and 1722a from Ethernet interface are received
Data frame.The bus data frame can be CAN data frames, LIN data frames, MOST data frames or FlexRay data frames.This reality
It is traditional Ether frame, i.e., the Ether frame of no 1722a data frames, IPV6 packets or IPV4 data to apply the Ether frame described in example
Bag is encapsulated in Ether frame as load, bus data frame can be also loaded with the Ether frame, Ether frame is respectively provided with source address
With destination address information (i.e. TCP/IP addresses, IP address).1722a data frames are encapsulated in Ether frame effectively as load,
But described for the ease of distinguishing, be directly described as 1722a data frames herein, to represent that it can be propagated in AVB networks.
Step S2, judge：If bus data frame, then step S3 is performed, if Ether frame, then perform step S9, if
1722a data frames, then perform step S10.
Wherein, the bus data frame, Ether frame and 1722a data frames are accessed by a corresponding connection unit respectively, institute
The information that connection unit is used to describe a corresponding physical interface is stated, the physical interface includes EBI and Ethernet connects
Mouthful.Connection unit is actually the description to physical interface, connection unit descriptor corresponding to formation, is had to access data
Interface assignment responsibility, also, each connection unit is called to corresponding inflow operation table and outflow operation table.
The connection unit descriptor as shown in fig. 7, wherein connection unit mark represent distribution physical interface, inflow
The inflow operation table and outflow that data flow operations refer to and the data flow operations of outflow connection unit with reference to corresponding to representing calls
Operate table.
Connection unit descriptor (Attached Unit Descriptor) is enhancing according to IEEE1722.1 agreements regulation
1722.1 descriptor.Bus marco acts on behalf of the terminal device as AVB networks, possesses configures descriptor (CONFIGURATION
Descriptors), so that 1722.1 controllers find that in addition, 1722.1 also describe flow descriptors, and this is existing skill
Art, do not repeat herein, 1722.1 permission developers are added as needed on extended description and accorded with." connection unit descriptor " herein
(ATTACHED UNIT descriptor) is the descriptor of extension.
Connection unit type includes：Network, outer plug-in card, add-on card, etc.；Interface type (ether, backplane interface, bus
Deng)；Destination address type, value, purpose mark symbol.
Operation table is flowed into as shown in figure 8, wherein, FWD is sends, and for SEND_CPU to be forwarded to CPU, BROADCAST is wide
Broadcast, input reference table shows data source address.
Outflow operation table is as shown in figure 9, wherein, FILTER is abandons, and output reference table registration is according to sending destination location.
Step S3, the bus data frame accessed according to connection unit, distributes the source ID of bus data frame one.The source ID
Distribution method include but is not limited to：The hardware identifier of bus based on connection, source address (the i.e. source of device based on data frame
Address), the data field based on data frame and based on running different application programs in bus.
Step S4, default data processing actions in table are operated according to the source ID, response outflow；The outflow operation table
In be preset with data execution action corresponding with source ID and data sending destination location.
Step S5, flowing out the data execution action of operation table includes sending, is forwarded to CPU and discarding.If transmission, then hold
Row step S6；If CPU is forwarded to, then the bus data frame is sent to the processor of AVB interchangers, so that the AVB
The processor of interchanger is handled the bus data frame according to deliberate action；If discarding, then by the bus data
Frame abandons, and disregards.
Wherein, the deliberate action comprises at least：By the bus data frame after processing according to default in outflow operation table
Data processing actions are handled.In fact, the bus data frame can also be packaged into by the processor of AVB interchangers
Ether frame, sent by Ethernet interface.That is, if CPU is forwarded to, then number of buses is determined by AVB interchangers
Acted according to the next step processing of frame.
Step S6, the bus data frame is packaged into by the 1722a propagated in AVB networks by 1722a parsing modules
Data frame, and sent in a manner of flowing ISP by Ethernet interface to AVB networks.
Step S9, according to bus data frame in the Ether frame of connection unit access, the source ID of bus data frame one is distributed,
And perform step S4.
Step S10, judge the 1722a data frames destination address (due to 1722a data frames it is actual and be loaded to
Too in frame, therefore also there is source address and destination address information) whether belong to and listen to address, if it is not, step S11 is then performed, if
It is then to perform step S12.Wherein, 1722.1 controllers are controlled and managed to whole AVB networks, and it can find whole AVB
All AVB interchangers and AVB terminals in network, it also records all AVB interchangers and the configuration information of AVB terminals, i.e.,
It knows whether AVB interchangers and AVB terminals possess the ability of parsing 1722a data frames.Listen to address and listen to list positioned at one
It is interior, it is described to listen to list and be stored in AVB interchangers, it is stored in 1722.1 controllers, listens to list and led for AVB
Technology more ripe, will not be repeated here in domain.
Step S11, the 1722a data frames are directly forwarded to the processor of local AVB interchangers, to allow AVB to hand over
The processor changed planes determines that the 1722a data frames are made to handle in next step.
Step S12, the 1722a data frames are parsed by 1722a parsing modules, obtains that there is source id information
Bus data frame, the bus data frame enter connection unit in a manner of flowing service recipients.
Step S13, according to the source ID, response flows into default data processing actions in operation table；It is described to flow into operation
Data execution action corresponding with source ID and data sending destination location are preset with table.
Step S14, flowing into the data execution action of operation table includes sending, is forwarded to CPU, broadcast and discarding.If hair
Send, then send the bus data frame to purpose EBI corresponding with sending data destination address；If being forwarded to
CPU, then the bus data frame is sent to the processor of AVB interchangers, so that the processor of the AVB interchangers is according to pre-
If action is handled the bus data frame；If broadcast, then the bus data frame is sent to all locals simultaneously
EBI and AVB interchangers processor；If discarding, then the bus data frame is abandoned, disregarded.
Source identifier (ID) and AVB streams (i.e. 1722a data frames) combination:AVB streams are ethernet data stream (i.e. Ether frames),
Purposefully MAC Address.Each AVB streams have a 64 bit stream identifiers and destination-mac address.Source identifier is allocated to AVB
Stream, for determining further to take action in destination.Therefore, there are following three kinds of combinations：
1st, as shown in Figure 10, for encapsulating different source identifiers (ID) and identical AVB streams, same target MAC (Media Access Control) address
And decapsulation (destination).
2nd, as shown in figure 11, the source identifier of separate sources, different flow identifiers, same target MAC (Media Access Control) address.
3rd, as shown in figure 12, the source identifier of separate sources, different flow identifiers, different destination-mac address.
Connection unit and inflow operation table, outflow operation table, meet the description of 1722.1 agreements.1722.1 controllers can be with
Reading and writing and use, and modified using 1722.1 agreements.
The bus marco agency of the present embodiment realizes the centralized Control of 1722.1 agreements.
A) 1722.1 are one and enumerate, and find agreement, operate in Ethernet, and similar 1722a, 1722.1 have an ether
Net type.1722.1 controllers can control 1722.1 equipment by network.
B) it is as follows in order to be defined as with the descriptor of 1722.1 control unit interfaces, enhancing.
Table 1：Outflow operation descriptor details
Table 2：Flow into operation descriptor details
Table 3：Connection unit descriptor details
C) foregoing description symbol is to be acted on behalf of to realize by bus marco.1722.1 standards are retouched to access in a well known manner
State symbol.
As shown in figure 13, the flow for the order acted on behalf of from 1722.1 controllers processing bus marco.
A) 1722.1 controllers must be set up being connected to the various descriptors of agency, in order to read and write each of agency
Descriptor information.
B) 1722.1a is the descriptor (i.e. connection unit descriptor) of enhancing, according to the type of the descriptor, is determined by agency
Determine processing action.
C) before bus marco agency sends response, 1722.1 descriptive datas are stored in Nonvolatile memory devices.
As shown in figure 14, the management process that 1722.1 controllers are acted on behalf of to bus marco.
A) configuration and descriptor are stored in bus marco agency and 1722.1 controllers；
B) most suitable configuration is always stored in 1722.1 controllers；
C) configuration and descriptor of the bus marco agency with storage initializes, and 1722a data frames are in 1722.1 controllers
Under control, start to propagate.
The present embodiment is the control of reliable AVB network data flows, and flexibility is strong, has the function of dynamic configuration.
After bus marco agency starts, management and control based on 1722.1 controllers, by carrying out school to configuration and descriptor information
Test and change, you can realize the function of improving stability and dynamic configuration.
As shown in figure 15, bus marco agency is made to realize stability and the flow of synchronizing information using 1722.1 controllers.
A) because 1722.1 controllers have most suitable configuration and algorithm logic, with the route of detection mistake, it is necessary to right
Configuration and descriptor are compared.
B) result carries out including synchronization or stable state to bus marco agency.
As shown in figure 16, the synchronous flow of bus marco agency.
A) bus marco, which acts on behalf of refresh operation, is performed on 1722.1 controllers.
B) 1722.1 controllers read the most suitable value being locally configured with descriptor, write bus control agent.
C) after relatively, dynamic process is started.
D) superincumbent mode, repeatedly after restarting systems, 1722.1 controllers can keep this total with method for refreshing
Line traffic control factorage is stable.
As shown in figure 17, the dynamic flow of 1722.1 controllers.
A) 1722.1 controllers are used to examine stability, and start dynamic process.
B) each system has different algorithms, but the result of every kind of algorithm will be thought by reading and writing enhancing descriptor to reach
The result wanted.
C) work data set includes the configuration of bus marco agency and the value of descriptor.
D) 1722.1 orders are sent to change the configuration of bus marco agency and descriptor, it is determined by algorithm.
E) non-volatile memories of AVB interchangers are stored in descriptor and each change configured.
F) 1722.1 controllers also memory descriptor is processed for referring in the future with dynamic algorithm is configured to.
For those skilled in the art, technical scheme that can be as described above and design, make other each
Kind is corresponding to be changed and deforms, and all these change and deformed the protection model that should all belong to the claims in the present invention
Within enclosing.
Claims (9)
1. bus marco network insertion AVB networks are acted on behalf of into implementation method, it is controlled based on 1722.1 controllers, and its feature exists
In comprising the following steps：
Step 1, the bus data frame from EBI, the Ether frame from Ethernet interface and 1722a data frames are received, if
For bus data frame, then step 2 is performed to step 4, if Ether frame, then step 5 is performed, if 1722a data frames, then performs
Step 6 is to step 8；
Wherein, the bus data frame, Ether frame and 1722a data frames are accessed by a corresponding connection unit respectively, the company
Order member is used for the information for describing a corresponding physical interface, and the physical interface includes EBI and Ethernet interface；
Step 2, the bus data frame accessed according to connection unit, distribute the source ID of bus data frame one；
Step 3, according to the source ID, default data processing actions in response outflow operation table；It is pre- in the outflow operation table
Provided with data execution action corresponding with source ID and data sending destination location；
Step 4, the bus data frame is packaged into by the 1722a data propagated in AVB networks by 1722a parsing modules
Frame, and sent in a manner of flowing ISP by Ethernet interface to AVB networks；
Step 5, according to connection unit access Ether frame in bus data frame, distribute the source ID of bus data frame one, and
Step 3 is performed to step 4；
Step 6, judge whether the destination address of the 1722a data frames belongs to and listen to address, if it is not, then directly will described in
1722a data frames are forwarded to the processor of AVB interchangers, if so, then performing step 7；
Step 7, by 1722a parsing modules the 1722a data frames are parsed, obtain the number of buses with source id information
According to frame, the bus data frame enters connection unit in a manner of flowing service recipients；
Step 8, according to the source ID, response flows into default data processing actions in operation table；It is described to flow into operation table in advance
Provided with data execution action corresponding with source ID and data sending destination location.
2. bus marco network insertion AVB networks are acted on behalf of into implementation method as claimed in claim 1, it is characterised in that
In step 3, the data execution action of outflow operation table includes sending, is forwarded to CPU and discarding；
There are following steps between step 3 and step 4：
If transmission, then step 4 is performed；If CPU is forwarded to, then the bus data frame is sent to the place of AVB interchangers
Device is managed, so that the processor of the AVB interchangers is handled the bus data frame according to deliberate action；If discarding,
Then the bus data frame is abandoned, disregarded.
3. bus marco network insertion AVB networks are acted on behalf of into implementation method as claimed in claim 1, it is characterised in that
In step 8, flowing into the data execution action of operation table includes sending, is forwarded to CPU, broadcast and discarding；
After the step 8, also following steps：
If transmission, then the bus data frame is sent to purpose EBI corresponding with sending data destination address；If
To be forwarded to CPU, then the bus data frame is sent to the processor of AVB interchangers, so that the processing of the AVB interchangers
Device is handled the bus data frame according to deliberate action；If broadcast, then simultaneously by the bus data frame send to
The processor of all local EBIs and AVB interchangers；If discarding, then the bus data frame is abandoned, not located
Reason.
4. bus marco network insertion AVB networks are acted on behalf of into implementation method as claimed in claim 2 or claim 3, it is characterised in that
The deliberate action comprises at least：Bus data frame after processing is entered according to default data processing actions in outflow operation table
Row processing.
5. bus marco network insertion AVB networks are acted on behalf of into implementation method as claimed in claim 1, it is characterised in that institute
Bus of the EBI directly with outside is stated to be connected.
6. bus marco network insertion AVB networks are acted on behalf of into implementation method as claimed in claim 1, it is characterised in that institute
Ethernet interface is stated to be connected with the bus of outside by bus gateway or converter, wherein, the converter is used for inhomogeneity
Enter row format conversion between the bus data frame of type.
7. bus marco network insertion AVB networks are acted on behalf of into implementation method as claimed in claim 1, it is characterised in that institute
Stating bus data frame includes the one or more in CAN data frames, LIN data frames, MOST data frames and FlexRay data frames.
8. bus marco network insertion AVB networks are acted on behalf of into implementation method as claimed in claim 1, it is characterised in that
IPV6 packets or IPV4 packets are encapsulated in Ether frame as load.
9. bus marco network insertion AVB networks are acted on behalf of into realization device, it is controlled based on 1722.1 controllers, and its feature exists
In, including bus marco agency and AVB interchangers, in addition to bus gateway or converter；There is the AVB interchangers bus to connect
Mouth and/or Ethernet interface；The bus marco agency is installed in AVB interchangers, or is installed on AVB interchangers and conversion
In device；Outside bus is connected with EBI, and/or is connected by bus gateway with AVB interchangers, and/or passes through conversion
Device is connected with AVB interchangers；Wherein, the converter is used to that row format conversion will to be entered between different types of bus data frame；
The flow chart of data processing of the bus marco agency is as described in claim any one of 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209903.0A CN103986714B (en) | 2014-05-16 | 2014-05-16 | Bus marco network insertion AVB networks are acted on behalf of into implementation method and device |
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| CN106549844B (en) * | 2016-11-02 | 2019-05-14 | 中国第一汽车股份有限公司 | A kind of MOST-CAN gateway and the diagnosis packet routing method based on the gateway |
| EP3522477B1 (en) * | 2018-01-31 | 2021-08-11 | Siemens Aktiengesellschaft | Method for communicating data in an industrial network in particular, device for carrying out the method, computer program and computer-readable medium |
| CN110971620A (en) * | 2020-01-03 | 2020-04-07 | 清华大学深圳国际研究生院 | Intelligent gateway flow security policy method |
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