CN113595844B - Data interaction method and device - Google Patents
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- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000013507 mapping Methods 0.000 claims description 12
- 239000013307 optical fiber Substances 0.000 abstract description 4
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- 230000006872 improvement Effects 0.000 description 5
- 238000013523 data management Methods 0.000 description 4
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- H—ELECTRICITY
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- 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
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- 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
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Abstract
The embodiment of the disclosure discloses a method and a device for data interaction, relating to the technical field of optical fiber networks; wherein the method comprises the following steps: when a bus controller of a first FC-AE-1553 data bus initiates communication, application data sent by a first bus terminal is received and stored in a first storage space; associating the first memory space with a second memory space map; and when the bus controller of the second FC-AE-1553 data bus initiates communication, acquiring the application data from the second storage space, and scheduling the application data to a second bus terminal to realize data interaction.
Description
Technical Field
The present disclosure relates to the field of optical fiber network technologies, and in particular, to a method and an apparatus for data interaction.
Background
In practical application, due to the limitation of application scenes such as physical positions of actual layout, improvement of bus transmission reliability, bus isomerism and the like, a plurality of FC-AE-1553 data buses are required to be adopted to complete data interaction transmission, but the data interaction mode among the plurality of FC-AE-1553 data buses influences the efficiency of data interaction.
In order to solve the above problems in the prior art, two schemes are generally adopted: one scheme is that a plurality of FC-AE-1553 data buses share bus controller equipment, and data interaction among bus controllers is realized through an internal data interface; the method can cause that a certain FC-AE-1553 data bus lacks a bus controller and needs a user to plan and lay out additional equipment in advance to realize the function of bus control, but the method can cause that the hardware and software of the system are more complicated and the reliability of the system is reduced; the other scheme is that data interaction is realized among a plurality of FC-AE-1553 data buses through a protocol data forwarding device; the method must ensure that when a bus controller of one FC-AE-1553 data bus initiates a communication process, other FC-AE-1553 data buses involved in the communication process cannot occupy optical fiber transmission channels of the other FC-AE-1553 data buses, and when the number of the FC-AE-1553 data buses is increased or reduced in the whole system, a built-in address table must be changed in time, so that the operation is complicated, and the user experience is poor. Therefore, a method suitable for data interaction among a plurality of FC-AE-1553 buses is needed.
Disclosure of Invention
Aiming at the technical problems in the prior art, the embodiment of the disclosure provides a data interaction method and device, so as to solve the problems in the prior art that the flexibility and reliability between a plurality of different FC-AE-1553 data buses are low, the data interaction efficiency between a plurality of FC-AE-1553 data buses is low, the operation is complex, and the like.
A first aspect of an embodiment of the present disclosure provides a data interaction method, including:
when a bus controller of a first FC-AE-1553 data bus initiates communication, application data sent by a first bus terminal is received and stored in a first storage space;
associating the first memory space with a second memory space map;
and when the bus controller of the second FC-AE-1553 data bus initiates communication, acquiring the application data from the second storage space, and scheduling the application data to a second bus terminal to realize data interaction.
In some embodiments, the method further comprises:
storing the application data into at least one data buffer in the first storage space.
In some embodiments, the physical address and storage capacity of the data cache are set by management software.
In some embodiments, the data buffer may store application data transmitted by one or more bus terminals simultaneously.
In some embodiments, the method further comprises: when application data sent by bus terminals of a plurality of different FC-AE-1553 data buses are stored in the same data buffer, the application data in the data buffer can be directly sent through an FC-AE-1553 protocol, and data interaction of the plurality of different FC-AE-1553 data buses is realized.
A second aspect of the embodiments of the present disclosure provides an apparatus for data interaction, including:
the receiving module is used for receiving application data sent by a first bus terminal when a bus controller of a first FC-AE-1553 data bus initiates communication;
the storage module is used for storing the application data received by the receiving module into a first storage space;
the mapping association module is used for mapping and associating the first storage space with a second storage space;
and the acquisition module is used for acquiring the application data from the second storage space and scheduling the application data to a second bus terminal to realize data interaction when the bus controller of the second FC-AE-1553 data bus initiates communication.
In some embodiments, the storage module is specifically configured to store the application data in at least one data buffer in the first storage space.
In some embodiments, the physical address and storage capacity of the data cache are set by management software.
In some embodiments, the data buffer may store application data transmitted by one or more bus terminals simultaneously.
In some embodiments, when application data sent by bus terminals of a plurality of different FC-AE-1553 data buses are stored in the same data buffer, the application data in the data buffer can be directly sent through an FC-AE-1553 protocol, so that data interaction of the plurality of different FC-AE-1553 data buses is realized.
According to the embodiment of the disclosure, the application data needing interaction among a plurality of FC-AE-1553 data buses is stored and managed, and migration of the application data in the memory is reduced through a sharing scheme of mapping a storage space, so that the efficiency of application data interaction is improved, the coupling degree among a plurality of different FC-AE-1553 data buses is reduced, the complexity is reduced, and the reliability is improved.
Drawings
The features and advantages of the present disclosure will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the disclosure in any way, and in which:
FIG. 1 is a flow diagram of a method of data interaction, shown in accordance with some embodiments of the present disclosure;
FIG. 2 is a method of data interaction, shown in accordance with some embodiments of the present disclosure;
FIG. 3 is a schematic diagram of a multiple FC-AE-1553 bus interconnect architecture, according to some embodiments of the present disclosure;
fig. 4 is a schematic diagram of a bus termination and memory mapping according to some embodiments of the present disclosure.
Detailed Description
In the following detailed description, numerous specific details of the disclosure are set forth by way of examples in order to provide a thorough understanding of the relevant disclosure. However, it will be apparent to one of ordinary skill in the art that the present disclosure may be practiced without these specific details. It should be understood that the use of the terms "system," "apparatus," "unit" and/or "module" in this disclosure is a method for distinguishing between different components, elements, portions or assemblies at different levels of sequence. However, these terms may be replaced by other expressions if they can achieve the same purpose.
It will be understood that when a device, unit or module is referred to as being "on" … … "," connected to "or" coupled to "another device, unit or module, it can be directly on, connected or coupled to or in communication with the other device, unit or module, or intervening devices, units or modules may be present, unless the context clearly dictates otherwise. For example, as used in this disclosure, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present disclosure. As used in the specification and claims of this disclosure, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are inclusive in the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" are intended to cover only the explicitly identified features, integers, steps, operations, elements, and/or components, but not to constitute an exclusive list of such features, integers, steps, operations, elements, and/or components.
These and other features and characteristics of the present disclosure, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, will be better understood by reference to the following description and drawings, which form a part of this specification. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the disclosure. It will be understood that the figures are not drawn to scale.
Various block diagrams are used in this disclosure to illustrate various variations of embodiments according to the disclosure. It should be understood that the foregoing and following structures are not intended to limit the present disclosure. The protection scope of the present disclosure is subject to the claims.
The FC-AE-1553 bus consists of a bus controller and a bus terminal, and a command response type communication protocol is adopted between the bus controller and the bus terminal, namely, all communication processes on the bus can only be initiated and scheduled by the bus controller. The FC-AE-1553 bus physical layer adopts a shared passive optical network, and the bus controller scheduling communication process adopts a time division multiplexing mode, namely after the first communication process scheduled by the bus controller is finished in communication on the passive optical network, the second communication process can be scheduled. In practical application, the transmission needs to be completed by adopting a plurality of FC-AE-1553 data buses due to application scenes such as physical positions of actual layout, improvement of bus transmission reliability, bus isomerism and the like, but the data interaction efficiency is influenced by a data interaction mode among the plurality of FC-AE-1553 data buses.
In the prior art, the following methods are generally used for realizing data interaction among a plurality of FC-AE-1553 data buses:
1) the FC-AE-1553 data buses share bus controller equipment, namely bus controllers of a plurality of buses are integrated in one equipment, and data interaction among the bus controllers is realized through an internal data interface, so that data interaction among the FC-AE-1553 data buses is realized;
2) the protocol data forwarding device forwards the protocol data to the corresponding FC-AE-1553 data bus by judging the correlation between the source address and the destination address of the protocol frame and an address table stored in the device so as to realize the data interaction among the FC-AE-1553 data buses.
In application scenarios such as physical position, bus transmission reliability improvement, bus heterogeneous and the like which are limited by actual layout, the above solution has the following problem that the interaction efficiency of a plurality of FC-AE-1553 data buses is affected:
aiming at the solution of 1), when a plurality of FC-AE-1553 data buses need to be separated to realize heterogeneous application scenes in the operation process, a certain FC-AE-1553 data bus lacks a bus controller, and other equipment needs to be planned and laid out in advance to realize the function of bus control, but the system hardware and software are more complicated, and the system reliability is reduced.
Aiming at the solution of 2), when a bus controller of one FC-AE-1553 data bus initiates a communication process, it must be ensured that other FC-AE-1553 data buses involved in the communication process cannot occupy the optical fiber transmission channel, and when the number of the FC-AE-1553 data buses is increased or decreased in the whole system, the built-in address table must be changed in time.
Aiming at the defects of the implementation scheme 1)2) in application scenes of physical positions, bus transmission reliability improvement, bus isomerism and the like due to actual layout, the multiple FC-AE-1553 data bus data method provided by the scheme provides a new data interaction method, improves the flexibility of a system and reduces the complexity of the system.
As shown in fig. 1, the embodiment of the present disclosure discloses a data interaction method, which specifically includes:
s101, when a bus controller of a first FC-AE-1553 data bus initiates communication, receiving application data sent by a first bus terminal and storing the application data in a first storage space;
s102, mapping and associating the first storage space with a second storage space;
and S103, when the bus controller of the second FC-AE-1553 data bus initiates communication, acquiring the application data from the second storage space, and scheduling the application data to a second bus terminal to realize data interaction.
In some embodiments, the method further comprises: and storing the application data into at least one data buffer in the first storage space.
In some embodiments, the physical address and storage capacity of the data cache are set by management software.
In some embodiments, the data buffer may store application data transmitted by one or more bus terminals simultaneously.
In some embodiments, the method further comprises: when application data sent by bus terminals of a plurality of different FC-AE-1553 data buses are stored in the same data buffer, the application data in the data buffer can be directly sent through an FC-AE-1553 protocol, and data interaction of the plurality of different FC-AE-1553 data buses is realized.
As shown in fig. 2, an embodiment of the present disclosure further discloses an apparatus 200 for data interaction, including:
the receiving module 201 is configured to receive application data sent by a first bus terminal when receiving that a bus controller of a first FC-AE-1553 data bus initiates communication;
a storage module 202, configured to store the application data received by the receiving module in a first storage space;
a mapping association module 203, configured to map and associate the first storage space with a second storage space;
the obtaining module 204 is configured to obtain the application data from the second storage space when the bus controller of the second FC-AE-1553 data bus initiates communication, and schedule the application data to the second bus terminal to implement data interaction.
In some embodiments, the storage module is specifically configured to store the application data in at least one data buffer in the first storage space.
In some embodiments, the physical address and storage capacity of the data cache are set by management software.
In some embodiments, the data buffer may store application data transmitted by one or more bus terminals simultaneously.
In some embodiments, when application data sent by bus terminals of a plurality of different FC-AE-1553 data buses are stored in the same data buffer, the application data in the data buffer can be directly sent through an FC-AE-1553 protocol, so that data interaction of the plurality of different FC-AE-1553 data buses is realized.
As shown in fig. 3, a schematic diagram of interconnection of a plurality of FC-AE-1553 buses is provided, and management of application data to be interacted among the plurality of FC-AE-1553 buses is realized through a data interaction device (such as the application data management device shown in fig. 3).
The application data management device realizes the functions of a bus terminal relative to any FC-AE-1553 data bus, opens up a corresponding application data storage space, and realizes mapping management of the application data storage spaces of different FC-AE-1553 data buses through management software. One FC-AE-1553 data bus comprises at least a bus terminal (NT) and a bus controller (NC).
For example, when the bus terminal NT1 of the FC-AE-1553 data bus numbered 1 sends application data to the bus terminal NT2 of the FC-AE-1553 data bus numbered 2, the bus controller of the FC-AE-1553 data bus numbered 1 initiates a communication process, sends the application data of NT1 to a certain memory space of NT11 in the application data management device, the management software maps and associates the memory space of NT11 with the memory space of NT21, the bus controller of the FC-AE-1553 data bus numbered 2 initiates a communication process, dispatches the application data from the memory space of NT21 to NT2, and thus realizes the interaction between the bus terminal NT1 of the FC-AE-1553 data bus numbered 1 and the bus terminal NT2 of the FC-AE-1553 data bus numbered 2.
In the application data management device, management software maps storage spaces according to the number of the interconnected FC-AE-1553 buses and the requirement of data interaction among the buses, migration of application data in a memory is reduced through a sharing scheme of the mapping storage spaces, the efficiency of application data interaction is improved, and the error probability is reduced.
Further, as shown in fig. 4, a schematic diagram of a bus terminal and a memory space mapping is provided in the embodiment of the present disclosure. Wherein the solid arrows in the figure indicate: NT can write Data into a corresponding memory space, namely a Data buffer (Data buffer), and as indicated by a first solid arrow, a processor of NT11 searches for a space with a Data buffer1 as writing Data. The dashed arrows in the figure indicate: NT can read the memory space corresponding to the data, as indicated by the first dotted arrow: when the processor of NT11 reads Data, the addressing space is Data buffer 1-6.
Furthermore, with reference to the schematic diagram of interconnection of multiple FC-AE-1553 buses shown in fig. 3, when NT11 receives a communication schedule of NC1, completes a communication process with NC1, and completes a communication protocol frame parsing, according to a storage space configuration of management software, application Data is stored in a first spatial Data buffer (Data buffer 1), and a physical address and a storage capacity of Data buffer1 may be specified by the management software. Meanwhile, the storage space of NT61 connected with FC-AE-1553 bus No. 6 (not shown in the figure) is allocated by management software and also mapped into data buffer1, and NT61 can directly send the application data of data buffer1 to NC6 through FC-AE-1553 protocol in the scheduling process of responding to NC6, thus realizing NC1 and NC6 communication between different FC-AE-1553 buses.
According to the embodiment of the disclosure, application data needing interaction among a plurality of FC-AE-1553 data buses is managed, and direct mapping of the application data is adopted, so that the coupling degree among different FC-AE-1553 data buses is reduced, the system complexity is reduced, the system reliability is improved, the extra overhead of the system complexity caused by separation and combination of the plurality of FC-AE-1553 data buses is avoided, and meanwhile, flexibility is provided for the expansion of the whole system.
It is to be understood that the above-described specific embodiments of the present disclosure are merely illustrative of or illustrative of the principles of the present disclosure and are not to be construed as limiting the present disclosure. Accordingly, any modification, equivalent replacement, improvement or the like made without departing from the spirit and scope of the present disclosure should be included in the protection scope of the present disclosure. Further, it is intended that the following claims cover all such variations and modifications that fall within the scope and bounds of the appended claims, or equivalents of such scope and bounds.
Claims (10)
1. A method of data interaction, comprising:
when a bus controller of a first FC-AE-1553 data bus initiates communication, application data sent by a first bus terminal is received and stored in a first storage space;
associating the first storage space with a second storage space map;
and when the bus controller of the second FC-AE-1553 data bus initiates communication, acquiring the application data from the second storage space, and scheduling the application data to a second bus terminal to realize data interaction.
2. The method of claim 1, further comprising:
and storing the application data into at least one data buffer in the first storage space.
3. The method of claim 2, wherein the physical address and storage capacity of the data buffer are set by management software.
4. The method of claim 2, wherein the data buffer is capable of storing application data transmitted by one or more bus terminals simultaneously.
5. The method of claim 4, further comprising: when application data sent by bus terminals of a plurality of different FC-AE-1553 data buses are stored in the same data buffer, the application data in the data buffer can be directly sent through an FC-AE-1553 protocol, and data interaction of the plurality of different FC-AE-1553 data buses is realized.
6. An apparatus for data interaction, comprising:
the receiving module is used for receiving application data sent by a first bus terminal when a bus controller of a first FC-AE-1553 data bus initiates communication;
the storage module is used for storing the application data received by the receiving module into a first storage space;
the mapping association module is used for mapping and associating the first storage space with a second storage space;
and the acquisition module is used for acquiring the application data from the second storage space and scheduling the application data to a second bus terminal to realize data interaction when the bus controller of the second FC-AE-1553 data bus initiates communication.
7. The apparatus according to claim 6, wherein the storage module is specifically configured to store the application data in at least one data buffer in the first storage space.
8. The apparatus of claim 7, wherein the physical address and storage capacity of the data buffer are set by management software.
9. The apparatus of claim 7, wherein the data buffer is capable of storing application data transmitted by one or more bus terminals simultaneously.
10. The device according to claim 9, wherein when application data sent by bus terminals of a plurality of different FC-AE-1553 data buses are stored in the same data buffer, the application data in the data buffer can be directly sent through the FC-AE-1553 protocol, so as to realize data interaction of the plurality of different FC-AE-1553 data buses.
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