CN112333071B - Communication method and system based on multiple bus network architectures - Google Patents
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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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- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
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- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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Abstract
The embodiment of the invention discloses a communication method and a system based on a plurality of bus network architectures, wherein the plurality of bus network architectures comprise: a plurality of control terminals, switching bridges and network slaves; the NC node of the network controller in each control end sends a command frame to the NT node of the network terminal in the control end, the NT node receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to the switching network bridge through the ONU port of the optical network unit; the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave through the optical line terminal OLT port. The embodiment of the invention forwards the command frame which does not belong to the NT node in the control end to the corresponding node in the network slave end through the exchange network bridge, thereby realizing the communication among a plurality of bus networks, ensuring the quick communication of local networks and ensuring the communication among different local networks.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a communication method and a communication system based on a plurality of bus network architectures.
Background
Communication is the communication and transfer of information from person to person through some medium. A network is a data link formed by connecting isolated workstations or hosts together by physical links. The communication network is a link for physically connecting each isolated device to realize information exchange between people, people and computers, and computers, so as to achieve the purposes of resource sharing and communication. The method has the advantages of high reliability, high stability, high bandwidth, strong electromagnetic interference resistance, simple and quick engineering application and the like.
In the FC-AE-1553 bus network communication system, there is one NC (network controller) and a plurality of NT (network terminal). NC is mainly controlled by OLT logic module, NT is mainly controlled by ONU logic module. The process of communication each time is as follows: firstly, different NT address read-write commands are initiated by an NC side, NT matches according to the received address, if the NT is the address of the NC side, corresponding operation is carried out according to the received command, and if the NT is not the address of the NC side, the NT is discarded. The condition that a plurality of ONUs emit light at the same time under the bus environment is effectively avoided through accessing different addresses, and normal data communication is ensured.
However, this system has a significant drawback in that the more NT nodes that are accessed in the whole system, the longer it takes to access all NT nodes in one traversal. The effectiveness of the system cannot be guaranteed, the application range of the system is limited, the ONU in the existing bus network communication system can only receive the command frame and reply the command frame, the ONU judges whether the command frame is the ID of the ONU, if the command frame is the ID of the ONU, the ONU receives the command frame, and the command which is not the ID of the ONU is not received and is directly discarded. Therefore, the whole existing bus network communication technology can only be carried out in one large network, and one OLT articulates a plurality of ONUs, so that the more ONUs are mounted on one bus, and the slower the execution efficiency of the whole network is.
Disclosure of Invention
Because the existing method has the above problems, embodiments of the present invention provide a communication method and system based on multiple bus network architectures.
The embodiment of the invention provides a communication method based on a plurality of bus network architectures, wherein the bus network architectures comprise: a plurality of control terminals, switching bridges and network slaves;
the method comprises the steps that a network controller NC node in each control end sends a command frame to a network terminal NT node in the control end, the NT node receives the command frame and judges whether the command frame belongs to the node, if yes, corresponding operation is carried out according to the command frame, and if not, the command frame is sent to an exchange bridge through an optical network unit ONU port; and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
Furthermore, each control terminal comprises an NC node for sending a command frame and at least one NT node for receiving the command frame sent by the NC node in the control terminal.
Further, the NT node in each control end respectively sends command frames which do not belong to the node to the exchange bridge through the ONU ports in different preset periods;
and the switching network bridge respectively forwards the command frames sent by the NT nodes in the control terminals in different preset periods to the NT nodes corresponding to the command frames in the network slave terminals through the OLT ports.
Further, after receiving a command frame which is not sent by the NT node in each control end through the ONU port and does not belong to the node, the switching bridge determines whether the command frame exists in the network slave end, and if so, discards the command frame, otherwise, forwards the command frame to the NT node corresponding to the command frame in the network slave end through the OLT port.
In a second aspect, an embodiment of the present invention further provides a communication system based on multiple bus network architectures, including: a control end, a switching bridge and a network slave end;
the NC node in each control end sends a command frame to a network terminal NT node in the control end;
the NT node in each control end receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to the exchange bridge through an ONU port of the optical network unit;
and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
Furthermore, each control terminal comprises an NC node for sending a command frame and at least one NT node for receiving the command frame sent by the NC node in the control terminal.
Further, the NT nodes in the respective control terminals respectively send command frames not belonging to the node to the switching bridge through the ONU ports at different preset periods;
and the switching network bridge respectively forwards the command frames sent by the NT nodes in the control terminals in different preset periods to the NT nodes corresponding to the command frames in the network slave terminals through the OLT ports.
Further, after receiving a command frame which is not sent by the NT node in each control end through the ONU port and does not belong to the node, the switching bridge determines whether the command frame exists in the network slave end, and if so, discards the command frame, otherwise, forwards the command frame to the NT node corresponding to the command frame in the network slave end through the OLT port.
In a third aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the communication method based on multiple bus network architectures according to the first aspect.
In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the communication method based on multiple bus network architectures according to the first aspect.
As can be seen from the foregoing technical solutions, in the communication method and system based on multiple bus network architectures provided in the embodiments of the present invention, the switching bridge receives the command frame sent by the NC node in each control end and not belonging to the NT node in the control end, and forwards the command frame to the NT node in the network slave end corresponding to the command frame through the OLT port, so that the NT node in each control end can not only receive the command frame belonging to itself and perform an operation, but also forward the command frame not belonging to itself to other network slave ends to implement communication between different networks. Therefore, the embodiment of the invention separates each control end from the network slave end through the exchange network bridge, thereby ensuring the quick and effective work of the control subnet and the effective access of the service subnet, realizing the communication among a plurality of bus networks and improving the transmission efficiency of the network.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a communication method based on multiple bus network architectures according to an embodiment of the present invention;
FIG. 2 is a flow chart of another communication method based on multiple bus network architectures according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a message arrangement method for communication based on multiple bus network architectures according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a communication system based on multiple bus network architectures according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a prior art bus network communication system;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a flowchart illustrating a communication method based on multiple bus network architectures according to an embodiment of the present invention, and fig. 2 is a flowchart illustrating another communication method based on multiple bus network architectures according to an embodiment of the present invention. The communication method based on multiple bus network architectures provided by the embodiment of the invention is explained and explained in detail below with reference to fig. 1 and fig. 2. As shown in fig. 1, a communication method based on multiple bus network architectures provided in an embodiment of the present invention specifically includes the following steps:
the plurality of bus network architectures comprising: a plurality of control terminals, switching bridges and network slaves;
step 101: the NC node of the network controller in each control end sends the command frame to the NT node of the network terminal in the control end;
in this step, the network controller NC node in each control end is mainly controlled by the OLT logic module. The process of communication each time is as follows: firstly, the NC node initiates different NT address read-write commands (command frames) to the network terminal NT node in the control terminal. Each control end comprises an NC node for sending a command frame and at least one NT node for receiving the command frame sent by the NC node in the control end.
Step 102: the NT node receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to an exchange bridge through an ONU port of an optical network unit;
in this step, it should be noted that, the port where the switching bridge and the control end are interconnected is an ONU, the NT node receives a command frame sent by the NC node in the control end, and matches the command frame according to the received address, if the address is the address of the NT node, performs corresponding operation according to the received command, and if the address is not the address of the NT node, sends the command frame to the switching bridge through the ONU port of the optical network unit.
Step 103: and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
In this step, it should be noted that, a port where the switching bridge and the network slave are interconnected is an OLT, the switching bridge forwards a received command frame sent by each control end through an ONU port to NT nodes (multiple NT nodes are in the network slave) corresponding to the command frame in the network slave through the OLT port of the optical line terminal, thereby implementing cross-network transmission of the bus network, and the switching bridge is interconnected with the control end and the network slave respectively, thereby avoiding light-emitting collision caused by direct interconnection between the control end and the network slave. Therefore, the embodiment of the invention associates different control terminals with the network slave terminal by introducing the switching bridge, so that different control terminals can access the NT node in the network slave terminal. In the conventional bus network communication system, referring to fig. 5, a schematic diagram of the conventional bus network communication system is shown, and a conventional bus communication network may only have one master control terminal (OLT) connected below a plurality of slave terminals (ONUs), where the master control terminal can only communicate with one slave terminal at the same time, and the ONUs can only receive and reply command frames, but cannot perform forwarding operation. When more NT nodes are accessed in the whole system, it takes a long time to access all the NT nodes once, and the whole network is slow in execution efficiency. The effectiveness of the system cannot be guaranteed, and the application range of the system is limited. The embodiment of the invention interconnects the network slave end and the exchange network bridge through the OLT port, and the ONU can not only receive and reply the own command in the form of the network bridge, but also can forward the command frame which does not belong to the ONU to another OLT port to realize the communication of different local systems, thereby meeting the requirement that a plurality of main control ends and network slave ends can exist in the same network, ensuring the quick communication of the local networks and ensuring the communication among different local networks.
As can be seen from the foregoing technical solutions, in the communication method based on multiple bus network architectures provided in the embodiments of the present invention, the switching bridge receives the command frame sent by the NC node in each control end and not belonging to the NT node in the control end, and forwards the command frame to the NT node in the network slave end corresponding to the command frame through the OLT port, so that the NT node in each control end can not only receive the command frame belonging to itself and perform an operation, but also forward the command frame not belonging to itself to other network slave ends to implement communication between different networks. Therefore, the embodiment of the invention separates each control end from the network slave end through the exchange network bridge, thereby ensuring the quick and effective work of the control subnet and the effective access of the service subnet, realizing the communication among a plurality of bus networks and improving the transmission efficiency of the network.
Based on the content of the foregoing embodiments, in this embodiment, each control node includes an NC node that transmits a command frame, and at least one NT node that receives the command frame transmitted by the NC node in this control node.
In this embodiment, it should be noted that the switching bridge is connected to a plurality of control terminals through ONU ports, and each control terminal includes an NC node for sending a command frame, and may include one or more NT nodes for receiving the command frame sent by the NC node in the control terminal.
Based on the content of the above embodiment, in this embodiment, the NT node in each control end sends the command frame not belonging to the node to the switching bridge through the ONU port at different preset periods;
and the switching network bridge respectively forwards the command frames sent by the NT nodes in the control terminals in different preset periods to the NT nodes corresponding to the command frames in the network slave terminals through the OLT ports.
In this embodiment, it should be noted that, to avoid light-emitting collision caused by simultaneous light-emitting of multiple NT nodes in the same network slave, messages of the network slaves need to be arranged, and specifically, the NT nodes in the respective control terminals send command frames to the switching bridge through the ONU ports at different preset periods. As shown in fig. 3, a schematic diagram of a message arrangement method for communication based on multiple bus network architectures according to an embodiment of the present invention is provided. The time T0 is the starting point of the control terminals 1 and 2, and the control terminals respectively send command frames to the switching bridge in different message operation cycles, so that the switching bridge can respectively access the network slave terminals in different message operation cycles, and communicate with the control terminals in the time period not belonging to the time period in which the control terminal sends command frames, thereby avoiding light-emitting collision caused by simultaneous light-emitting of NT nodes in the same network slave terminal. As shown in fig. 3, the control end 1 sends a command frame to the switching bridge in the time period T0-T1, the switching bridge forwards the command frame to the network slave end for access, and meanwhile, the other control ends communicate with the inside of the control end in the time period. In the time period from T1 to T2, the control end 2 sends a command frame to the switching bridge, the switching bridge forwards the command frame to the network slave end for access, and other control ends communicate with the control end in the time period from T1 to T2. Therefore, the embodiment of the invention can ensure that NT nodes of the network slave end can not emit light at the same time by arranging the messages of different control ends, thereby avoiding light-emitting collision caused by the simultaneous light-emitting of a plurality of nodes in the same network slave end and ensuring normal communication.
Based on the content of the foregoing embodiment, in this embodiment, after receiving a command frame that is not sent by an NT node in each control end through an ONU port and does not belong to the node, the switching bridge determines whether the command frame exists in a network slave end, and if so, discards the command frame, otherwise, forwards the command frame to an NT node in the network slave end corresponding to the command frame through an OLT port.
In this embodiment, it should be noted that, in order to avoid the mutual influence of the command frames in the network slave, after receiving the command frame, which is not sent by the NT node in each control end through the ONU port and belongs to the local node, the switching bridge determines whether the command frame exists in the network slave, if so, discards the command frame, and avoids the mutual influence of the command frames in the network slave, and if not, forwards the command frame to the NT node corresponding to the command frame in the network slave through the OLT port according to the destination address, thereby implementing the cross-network transmission of the bus network.
In this embodiment, it can be understood that, a command frame sent by an NC node in each control end and not belonging to an NT node in the control end is received by the switch bridge, and the command frame is forwarded to an NT node corresponding to the command frame in the network slave end through the OLT port, and communication between multiple bus networks is completed by arranging messages of different control ends, which can ensure timely communication of internal data of a single bus network and node communication between multiple bus networks, and further can ensure that the NT nodes of the network slave end can emit light at different times, thereby avoiding light-emitting collision caused by simultaneous light emission of multiple nodes in the same network slave end.
Based on the same inventive concept, another embodiment of the present invention provides a communication system based on multiple bus network architectures, and referring to fig. 4, an embodiment of the present invention provides a structural schematic diagram of a communication system based on multiple bus network architectures, where the system includes: a control end, a switching bridge and a network slave end;
the NC node in each control end sends a command frame to a network terminal NT node in the control end;
the NT node in each control end receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to the exchange bridge through an ONU port of the optical network unit;
and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
In this embodiment, the NC node first initiates different NT address read/write commands (command frames) to the network terminal NT node in the control end. Each control end comprises an NC node for sending a command frame and at least one NT node for receiving the command frame sent by the NC node in the control end. The NT node receives a command frame sent by an NC node in the control terminal, matches the command frame according to the received address, performs corresponding operation according to the received command if the address is the address of the NT node, and sends the command frame to the switching network bridge through an ONU port of the optical network unit if the address is not the address of the NT node. The switching network bridge forwards the received command frame sent by each control end through the ONU port to the NT node corresponding to the command frame in the network slave end through the OLT port, so that the cross-network transmission of the bus network is realized, and the switching network bridge is respectively interconnected with the control end and the network slave end, so that the light-emitting collision caused by the direct interconnection of the control end and the network slave end can be avoided. Therefore, the embodiment of the invention associates different control terminals with the network slave terminal by introducing the switching bridge, so that different control terminals can access the NT node in the network slave terminal. In contrast, the conventional bus network communication system, as shown in fig. 5, has a schematic diagram of an NC node and a plurality of NT nodes. The process of communication each time is as follows: firstly, the NC node initiates different NT address read-write commands, the NT node is matched according to the received address, if the NT node is the address of the NC node, corresponding operation is carried out according to the received command, and if the NT node is not the address of the NC node, the NT node is discarded. It can be seen that, in the existing bus network communication system, one NC node can only communicate with one NT node at the same time, and as more NT nodes are accessed in the whole system, it takes a long time to traverse and access all NT nodes once, so that the effectiveness of the system cannot be guaranteed, and the application range of the system is limited.
As can be seen from the foregoing technical solutions, in the communication system based on multiple bus network architectures provided in the embodiments of the present invention, the switching bridge receives the command frame sent by the NC node in each control end and not belonging to the NT node in the control end, and forwards the command frame to the NT node in the network slave end corresponding to the command frame through the OLT port, so that the NT node in each control end can not only receive the command frame belonging to itself and perform an operation, but also forward the command frame not belonging to itself to other network slave ends to implement communication between different networks. Therefore, the embodiment of the invention separates each control end from the network slave end through the exchange network bridge, thereby ensuring the quick and effective work of the control subnet and the effective access of the service subnet, realizing the communication among a plurality of bus networks and improving the transmission efficiency of the network.
The communication system based on multiple bus network architectures described in this embodiment may be used to implement the above method embodiments, and the principle and technical effect are similar, which are not described herein again.
Based on the same inventive concept, another embodiment of the present invention provides an electronic device, which refers to the schematic structural diagram of the electronic device shown in fig. 6, and specifically includes the following contents: a processor 601, a memory 602, a communication interface 603, and a communication bus 604;
the processor 601, the memory 602 and the communication interface 603 complete mutual communication through the communication bus 604; the communication interface 603 is used for implementing information transmission between the devices;
the processor 601 is configured to call a computer program in the memory 602, and when the processor executes the computer program, the processor implements all the steps of the communication method based on multiple bus network architectures, for example, a network controller NC node in each control end sends a command frame to a network terminal NT node in the control end; the NT node receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to an exchange bridge through an ONU port of an optical network unit; and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
Based on the same inventive concept, another embodiment of the present invention provides a non-transitory computer-readable storage medium, having a computer program stored thereon, which, when being executed by a processor, implements all the steps of the above-mentioned communication method based on multiple bus network architectures, for example, a network controller NC node in each control end sends a command frame to a network terminal NT node in the control end; the NT node receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to an exchange bridge through an ONU port of an optical network unit; and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding, the above technical solutions may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the communication method based on multiple bus network architectures according to the various embodiments or some portions of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A communication method based on a plurality of bus network architectures, wherein the plurality of bus network architectures comprise: a plurality of control terminals, switching bridges and network slaves;
the NC node of the network controller in each control end sends a command frame to the NT node of the network terminal in the control end;
the NT node receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to an exchange bridge through an ONU port of an optical network unit;
and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
2. The method of claim 1, wherein each controller includes an NC node for sending command frames, and at least one NT node for receiving the command frames sent by the NC node in the controller.
3. The communication method according to claim 1, wherein the NT node in each control end sends a command frame not belonging to the node to the switching bridge through the ONU port at different preset periods;
and the switching network bridge forwards the received command frames sent by the NT nodes in the control terminals in different preset periods to the NT nodes corresponding to the command frames in the network slave terminals through the OLT ports respectively.
4. The communication method according to claim 1, wherein the switching bridge determines whether the command frame exists in the network slave after receiving a command frame that is not sent by the NT node in each control end through the ONU port and that does not belong to the local node, and drops the command frame if the command frame exists, or forwards the command frame to the NT node in the network slave corresponding to the command frame through the OLT port.
5. A communication system based on a multiple bus network architecture, comprising: a control end, a switching bridge and a network slave end;
the NC node of the network controller in each control end sends a command frame to the NT node of the network terminal in the control end;
the NT node in each control end receives the command frame and judges whether the command frame belongs to the node, if so, corresponding operation is carried out according to the command frame, otherwise, the command frame is sent to the exchange bridge through an ONU port of the optical network unit;
and the switching bridge forwards the command frame to the NT node corresponding to the command frame in the network slave end through an Optical Line Terminal (OLT) port.
6. The multi-bus network architecture based communication system as claimed in claim 5, wherein each control node comprises an NC node for transmitting command frames and at least one NT node for receiving the command frames transmitted from the NC node in the control node.
7. The communication system according to claim 5, wherein the NT node in each control end sends a command frame not belonging to the node to the switching bridge through the ONU port at different preset periods;
and the switching network bridge forwards the received command frames sent by the NT nodes in the control terminals in different preset periods to the NT nodes corresponding to the command frames in the network slave terminals through the OLT ports respectively.
8. The communication system of claim 5, wherein the switch bridge determines whether the command frame exists in the network slave after receiving a command frame that is not sent by the NT node in each control end through the ONU port and that does not belong to the local node, and drops the command frame if the command frame exists, or forwards the command frame to the NT node in the network slave corresponding to the command frame through the OLT port.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method for communication based on multiple bus network architectures according to any of claims 1 to 4 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the communication method based on multiple bus network architectures according to any one of claims 1 to 4.
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| CN202011643931.5A CN112333071B (en) | 2020-12-31 | 2020-12-31 | Communication method and system based on multiple bus network architectures |
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| CN104618207A (en) * | 2015-01-08 | 2015-05-13 | 中国科学院空间应用工程与技术中心 | Heterogeneous FC-AE-1553 network system and exchange method |
| CN104980224A (en) * | 2015-05-05 | 2015-10-14 | 电子科技大学 | FC-AE-1553 data exchange mode design method, FC-AE-1553 data exchange mode network control method and FC-AE-1553 data exchange mode energy saving method |
| CN206498419U (en) * | 2017-01-24 | 2017-09-15 | 北京国科天迅科技有限公司 | Bus-type hybrid network based on bridger |
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| CN102142898B (en) * | 2011-03-29 | 2014-07-16 | 华为技术有限公司 | Ranging method and device of nested PON (passive optical network) |
| CN104244117B (en) * | 2013-06-24 | 2018-12-25 | 鼎点视讯科技有限公司 | The Cascading Methods and system of optical network unit |
| CN106850371B (en) * | 2017-01-24 | 2019-09-20 | 北京国科天迅科技有限公司 | A kind of bus-type FC-AE-1553 network system and data are sent and acquisition method |
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| CN104618207A (en) * | 2015-01-08 | 2015-05-13 | 中国科学院空间应用工程与技术中心 | Heterogeneous FC-AE-1553 network system and exchange method |
| CN104980224A (en) * | 2015-05-05 | 2015-10-14 | 电子科技大学 | FC-AE-1553 data exchange mode design method, FC-AE-1553 data exchange mode network control method and FC-AE-1553 data exchange mode energy saving method |
| CN206498419U (en) * | 2017-01-24 | 2017-09-15 | 北京国科天迅科技有限公司 | Bus-type hybrid network based on bridger |
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