CN117118846A - Ethernet network topology structure, design method and use method - Google Patents
Ethernet network topology structure, design method and use method Download PDFInfo
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Abstract
The invention relates to the technical field of communication networks, in particular to an Ethernet network topology structure, a design method and a use method. According to the invention, a plurality of communication nodes are arranged in one network unit, and each network unit realizes information interaction of the communication nodes in the network unit through a topology control board card; according to the application scene of the current communication node and the use frequency of each communication line, the real-time adjustment of the network topology structure can be realized through the on-off control of the relay on the topology control board card, and the adjustment process of the whole topology structure does not need to fold the network, so that the adjustment cost is reduced, and the adjustment efficiency is improved; meanwhile, an expanded foundation is provided for the existing topological structure, and the application range is improved; the adjusted topology may improve communication efficiency within the network element.
Description
Technical Field
The invention relates to the technical field of communication networks, in particular to an Ethernet network topology structure, a design method and a use method.
Background
The intelligent network-connected automobile is a fusion of the intelligent automobile and the internet technology, and the automobile is in cooperation with the controller through the carried sensor, so that the intelligent and network-connected automobile is achieved. Advanced driving assistance systems on board intelligent networked automobiles require a large amount of data transmission and processing. Compared with other vehicle-mounted network technologies, the vehicle-mounted Ethernet has the advantages of low cost, high bandwidth, strong expandability, flexible network topology architecture and the like.
Unlike traditional in-vehicle network bus technology, the in-vehicle ethernet needs to achieve a point-to-point connection form between nodes and domains, so that the expandability and flexibility of the in-vehicle ethernet are limited by network topology. In the development process of the vehicle-mounted Ethernet, networking of network nodes and construction of network topology are required. In the current technical means, network topology to be researched needs to be designed firstly, then the link connection condition among all network nodes is cleared, and then the hardware connection of the circuits among all nodes is completed in a manual access mode. The construction of the network topology in the prior art is only applicable to the topology, and once the network topology needs to be changed, the links need to be manually dismantled, redesigned, rechecked and reconnected, namely, each time the topology structure is changed, the links in the network need to be manually dismantled and assembled.
The existing vehicle-mounted Ethernet testing tool is researched, the main functions of the tool are message transceiving, monitoring and protocol configuration and analysis of a network, the function of controlling the vehicle-mounted Ethernet topological structure is temporarily not controlled, a test-oriented object is a pre-connected network, and once the network topology needs to be changed, the link still needs to be manually disassembled and assembled.
Disclosure of Invention
The invention discloses an Ethernet network topology structure, a design method and a use method, which can change the current network topology structure at will.
To achieve the above object, in one aspect, an ethernet network topology is provided, including: more than one network element;
each network unit comprises more than three network nodes and topology control boards;
the plurality of network nodes of each network element comprises a main network node and a plurality of sub-network nodes;
the main network node and the sub-network nodes are respectively connected to different ports of the topology control board card;
the ports of the topology control board cards connected with the main network nodes are respectively and electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay.
The embodiment has the advantages that a plurality of communication nodes are arranged in one network unit, and each network unit realizes the information interaction of the communication nodes in the network unit through the topology control board; according to the application scene of the current communication node and the use frequency of each communication line, the real-time adjustment of the network topology structure can be realized through the on-off control of the relay on the topology control board card, and the adjustment process of the whole topology structure does not need to fold the network, so that the adjustment cost is reduced, and the adjustment efficiency is improved; meanwhile, an expanded foundation is provided for the existing topological structure, and the application range is improved; the adjusted topology may improve communication efficiency within the network element.
Optionally, the ports of two adjacent topology control boards connected with the sub-network nodes are electrically connected through a relay respectively.
The embodiment has the advantages that the ports connected with the main network nodes on the topology control board are respectively and electrically connected with the ports of each topology control board connected with the sub-network nodes through a relay, and the connection mode is only suitable for star topology and cannot realize the adjustment of ring topology. On the basis, the ports of two adjacent topology control boards connected with the sub-network nodes are respectively and electrically connected through a relay, so that the topology control boards can be adjusted to any star-shaped network topology structure and any ring-shaped network topology structure, the adjustment range is improved, and the application range is increased.
Optionally, the network element is one.
Optionally, the number of the network elements is two, and the two network elements do not communicate with each other.
Further, the main network node and the sub network node of each network unit are connected with the topology control board card through the topology control bottom board, and the specific connection mode is as follows:
the main network node and the sub network nodes are connected with one input end of the topology control base plate through one physical layer interface, and the output end corresponding to each input end of the topology control base plate is connected with one input end of the topology control board card through one physical layer interface.
An advantage of this embodiment is that the topology control backplane provides a basis for communication between network elements, and communication between any network elements can be achieved by adjusting the connectivity lines on the topology control backplane. In addition, the topology control bottom plate can be increased or reduced in number, so that capacity expansion or adjustment is facilitated.
Optionally, the number of the network units is three, and the three network units are mutually communicated, and the specific connection mode is as follows:
the main network nodes of two adjacent network units are connected with each other on a communication line on a topology control bottom plate or are connected with each other through a relay.
Optionally, the number of the network units is four, and the four network units are mutually communicated, and the specific connection mode is as follows:
the communication lines of the main network nodes of any network element on the topology control bottom plate are respectively connected with the communication lines of the main network nodes of other network elements on the topology control bottom plate, or the communication lines of the main network nodes of other network elements on the topology control bottom plate are connected through relays.
Optionally, the number of the network units is two, and the two network units are mutually communicated, and the specific connection mode is as follows:
any one or more sub-network nodes in each network element are connected with each other on a communication line on a topology control bottom plate or are connected with each other through a relay.
Further, the ethernet network topology further comprises a relay control chip.
Optionally, the relay control chip is electrically connected with each relay through a plurality of lines respectively, and receives the current state of the relay or controls the relay to be turned on or off.
Optionally, the relay control chip is electrically connected with a main network node of each network unit, and receives the current state of the relay or controls the relay to be turned on or off through the main network node.
The embodiment has the advantages that each relay is not required to be connected with the relay control chip, the wiring structure is optimized, and the wiring cost is reduced.
In order to achieve the above objective, on the other hand, a method for designing an ethernet network topology is provided, which specifically includes the following steps:
acquiring the number of communication nodes of an Ethernet network topology structure to be constructed and the communication frequency among the communication nodes;
analyzing communication frequencies among the communication nodes, and dividing the communication nodes with the communication frequencies larger than a threshold value and within a preset number into a network unit;
selecting the communication node with the largest communication line number in each network unit as a main network node, and the rest communication nodes as sub-network nodes;
according to the communication structure in the network unit, designing a connection mode on the topology control board card;
and designing a connection mode on the topology control bottom plate according to the communication structure between the network units.
The embodiment has the advantages that based on the Ethernet network topology structure, the design method can be adopted to design the topology structure which has high-efficiency communication efficiency, wide application range and real-time adjustment and can be aimed at any communication node and any communication requirement.
Optionally, according to the communication structure in the network unit, a connection mode on the topology control board card is designed, and the specific method is as follows:
if the communication nodes in the network unit are in a star communication mode, the ports of the topology control board cards connected with the main network nodes are electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay respectively;
if the communication nodes in the network unit are in a ring communication mode, the ports connected with the main network node on the topology control board are respectively and electrically connected with the ports of each topology control board connected with the sub-network nodes through a relay, and the ports of the adjacent two topology control boards connected with the sub-network nodes are respectively and electrically connected through a relay.
Optionally, according to the communication structure in the network unit, a connection mode on the topology control board card is designed, and the specific method is as follows:
if the communication nodes in the network unit are in a star communication mode, the ports of the topology control board cards connected with the main network node are respectively and electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay, and the ports of the two adjacent topology control board cards connected with the sub-network nodes are respectively and electrically connected through a relay;
if the communication nodes in the network unit are in a ring communication mode, the ports connected with the main network node on the topology control board are respectively and electrically connected with the ports of each topology control board connected with the sub-network nodes through a relay, and the ports of the adjacent two topology control boards connected with the sub-network nodes are respectively and electrically connected through a relay.
Optionally, according to the communication structure between the network units, a connection mode on the topology control bottom board is designed, and the specific method is as follows:
if no communication requirement exists between the network units, a relay and a connecting line are not arranged on the topology control base plate;
if there is a communication demand between the network units, the communication lines of the main network nodes of any network unit on the topology control bottom plate are respectively connected with the communication lines of the main network nodes of other network units on the topology control bottom plate, or the communication lines of the main network nodes of other network units on the topology control bottom plate are connected through relays.
Optionally, according to the communication structure between the network units, a connection mode on the topology control bottom board is designed, and the specific method is as follows:
if no communication requirement exists between the network units, a relay and a connecting line are not arranged on the topology control base plate;
if there is a communication demand between the network elements, the main network nodes of two adjacent network elements are connected with each other on the communication line on the topology control bottom plate or are connected with each other through a relay.
In order to achieve the above objective, on the other hand, a method for using an ethernet network topology is provided, which specifically includes the following steps:
judging whether the communication requirements in all network units are updated or need to be optimized;
if the network topology control board card is updated or needs to be optimized, analyzing the communication mode in the current network unit, designing the network topology structure in the network unit, and controlling the corresponding relay on the topology control board card to be opened or closed according to the designed network topology structure in the network unit to complete the recombination of the network topology structure in the network unit.
The embodiment has the advantages that based on the Ethernet network topology structure, the existing network topology structure can be adjusted at will by combining the use method, and the communication efficiency is improved.
Further, the method also comprises the following steps:
judging whether the communication requirements among all network units are updated or need to be optimized;
if the network topology is updated or needs to be optimized, analyzing the communication mode between the current network units and designing the network topology structure between the network units, and controlling the corresponding relays on the topology control bottom plate to be opened or closed according to the network topology structure between the network units to complete the network topology structure reorganization between the network units.
The embodiment has the advantages that based on the Ethernet network topology structure, the connection mode between the prior network units can be arbitrarily adjusted by combining the use method, and the communication efficiency is improved.
It should be noted that, the terms "first", "second", and the like are used herein merely to describe each component in the technical solution, and do not constitute a limitation on the technical solution, and are not to be construed as indicating or implying importance of the corresponding component; elements with "first", "second" and the like mean that in the corresponding technical solution, the element includes at least one.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the technical effects, technical features and objects of the present invention will be further understood, and the present invention will be described in detail below with reference to the accompanying drawings, which form a necessary part of the specification, and together with the embodiments of the present invention serve to illustrate the technical solution of the present invention, but not to limit the present invention.
Like reference numerals in the drawings denote like parts, in particular:
fig. 1 is a network topology diagram of embodiment 1.
Fig. 2 is a network topology of two network elements in embodiment 2.
Fig. 3 is a network topology of three network elements in embodiment 3.
Fig. 4 is a network topology of four network elements in embodiment 4.
Fig. 5 is a network topology of two network elements in embodiment 5.
Fig. 6 is a schematic design flow chart of embodiment 6 and embodiment 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. Of course, the following specific examples are set forth only to illustrate the technical solution of the present invention, and are not intended to limit the present invention. Furthermore, the parts expressed in the examples or drawings are merely illustrative of the relevant parts of the present invention, and not all of the present invention.
Example 1:
an ethernet network topology, as shown in fig. 1, comprising: a network element;
the network unit comprises a main network node and three sub-network nodes; the main network node and the three sub-network nodes are respectively connected to three ports of the topology control board card;
the ports of the topology control board cards connected with the main network nodes are respectively and electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay.
Specifically, the ethernet network topology further comprises a relay control chip. The relay control chip is respectively electrically connected with each relay through a plurality of lines and receives the current state of the relay or controls the relay to be switched off.
In the embodiment, when all three relays are in a closed path state, a star topology structure is constructed in which a main network node is respectively connected with three sub-network nodes; when the relay No. 2 is opened, and the rest relays are closed, a star topology structure is constructed that the main network node No. 1 is respectively connected with the sub-network node No. 2 and the sub-network node No. 3, and the like can be changed into different star topology structures that the main network node No. 1 is connected with any sub-network node.
Example 2:
an ethernet network topology, as shown in fig. 2, comprising: the two network units are not communicated with each other;
the first network unit comprises a main network node and four sub-network nodes, wherein the No. 1 main network node is respectively connected with the No. 2 sub-network node, the No. 3 sub-network node, the No. 4 sub-network node and the No. 5 sub-network node through a relay; the No. 2 subnetwork node is connected with the No. 3 subnetwork node through a relay, the No. 3 subnetwork node is connected with the No. 4 subnetwork node through a relay, and the No. 4 subnetwork node is connected with the No. 5 subnetwork node through a relay.
Specifically, the Ethernet network topology structure further comprises a relay control chip, wherein the relay control chip is respectively and electrically connected with each relay through a plurality of lines and receives the current state of the relay or controls the relay to be switched on and off.
In the embodiment, the relays 5, 6 and 7 are disconnected, and a star topology network structure in which a primary network node 1 is respectively connected with a sub-network node 2, a sub-network node 3, a sub-network node 4 and a sub-network node 5 can be constructed; on the basis, the relays 1, 2, 3 and 4 are switched on and off, and the relay can be changed into any star topology network structure. The relays 5, 6 and 7 are opened, the relays 3 and 2 are disconnected, and a ring topology network structure can be constructed; on the basis, the relay is regulated to be disconnected, and the change of the ring topology network structure can be realized.
The second network unit comprises a main network node and two sub-network nodes, wherein the No. 1 main network node is respectively connected with the No. 2 sub-network node and the No. 3 sub-network node through a relay; the No. 2 subnetwork node is connected with the No. 3 subnetwork node through a relay.
Specifically, the Ethernet network topology structure further comprises a relay control chip, wherein the relay control chip is respectively and electrically connected with each relay through a plurality of lines and receives the current state of the relay or controls the relay to be switched on and off.
In this embodiment, the relay No. 5 is disconnected, and a star topology network structure in which the main network node No. 1 is connected to the sub-network node No. 2 and the sub-network node No. 3 respectively can be constructed. And opening the relay No. 5 to construct a ring topology network structure.
As can be seen from embodiments 1 and 2, the first network element may be one or two, and each network element may comprise one main network node and several sub-network nodes. When relay connection is arranged between the sub-network nodes, the switching of a ring topology network structure and a star topology network structure can be realized; switching of the star topology can be achieved without relay connections between the sub-network nodes.
Example 3:
an ethernet network topology, as shown in fig. 3, comprising: three network elements that can communicate with each other;
the main network node and the sub network nodes of each network unit are connected with a topology control board card through a topology control bottom board, and the specific connection mode is as follows:
the main network node and the sub network nodes are connected with one input end of the topology control base plate through a physical layer interface, and the output end corresponding to each input end of the topology control base plate is connected with one input end of the topology control board card through a physical layer interface; each main network node and each sub network node occupy a 100BASE-T1 network port, and are connected by using an ethernet 100BASE-T1 twisted pair.
In particular, the main network nodes of two adjacent network elements are connected to each other on the topology control backplane via communication lines or via relays.
Specifically, the first network unit comprises a main network node and four sub-network nodes, and the No. 1 main network node is respectively connected with the No. 2 sub-network node, the No. 3 sub-network node, the No. 4 sub-network node and the No. 5 sub-network node through a relay; the No. 2 subnetwork node is connected with the No. 3 subnetwork node through a relay, the No. 3 subnetwork node is connected with the No. 4 subnetwork node through a relay, and the No. 4 subnetwork node is connected with the No. 5 subnetwork node through a relay.
The second network unit comprises a main network node and two sub-network nodes, wherein the No. 1 main network node is respectively connected with the No. 2 sub-network node and the No. 3 sub-network node through a relay; the No. 2 subnetwork node is connected with the No. 3 subnetwork node through a relay.
The third network element comprises a main network node and three sub-network nodes; the port of the No. 1 main network node is electrically connected with the port of each topology control board card connected with the sub-network node through a relay respectively; the No. 2 subnetwork node is electrically connected with the No. 3 subnetwork node through a relay, and the No. 3 subnetwork node is electrically connected with the No. 4 subnetwork node through a relay.
As can be seen from embodiments 1 and 2, the first network element, the second network element, and the third network element can each implement arbitrary switching of the star topology and the ring topology. And the first network unit, the second network unit and the third network unit realize data interaction among the network units through respective main network nodes.
Specifically, the ethernet network topology further comprises a relay control chip.
Specifically, the relay control chip is electrically connected with each relay through a plurality of lines respectively, and receives the current state of the relay or controls the relay to be turned on or off.
As can be seen from embodiment 1, embodiment 2 and embodiment 3, the relay control chip can be electrically connected to each relay respectively; the relay control chip can be respectively and electrically connected with the main network node of each network unit, so that the aim of controlling each relay is fulfilled; of course, other electrical connections are also possible.
As can be seen from embodiment 1, embodiment 2 and embodiment 3, when no interaction is required between the network elements, the topology control backplane may or may not be used; when interaction between network elements is required, a topology control backplane is required.
Example 4:
an ethernet network topology, as shown in fig. 4, comprising: four network elements capable of communicating with each other;
the communication lines of the main network nodes of any network element on the topology control bottom plate are respectively connected with the communication lines of the main network nodes of other network elements on the topology control bottom plate, or the communication lines of the main network nodes of other network elements on the topology control bottom plate are connected through relays.
Example 5:
an ethernet network topology, as shown in fig. 5, comprising: two network elements that can communicate with each other;
any one or more sub-network nodes in each network element are connected with each other on a communication line on a topology control bottom plate or are connected with each other through a relay.
As can be seen from embodiments 3, 4 and 5, the connection manner between the network elements on the topology control backplane may be the manner of the above three embodiments, and other communication manners may be reasonably deduced.
Example 6:
an ethernet network topology design method, as shown in fig. 6, specifically comprises the following steps:
s1, acquiring the number of communication nodes of an Ethernet network topology structure to be constructed and the communication frequency between the communication nodes;
s2, analyzing communication frequencies among the communication nodes, and dividing the communication nodes with the communication frequencies larger than a threshold value and within a preset number into a network unit;
s3, selecting the communication node with the largest communication line number in each network unit as a main network node, and the rest communication nodes as sub-network nodes;
s4, designing a connection mode on the topology control board card according to a communication structure in the network unit;
specifically, according to the communication structure in the network unit, the connection mode on the topology control board card is designed, and the specific method is as follows:
if the communication nodes in the network unit are in a star communication mode, the ports of the topology control board cards connected with the main network nodes are electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay respectively;
if the communication nodes in the network unit are in a ring communication mode, the ports connected with the main network node on the topology control board are respectively and electrically connected with the ports of each topology control board connected with the sub-network nodes through a relay, and the ports of the adjacent two topology control boards connected with the sub-network nodes are respectively and electrically connected through a relay.
S5, designing a connection mode on the topology control bottom plate according to the communication structure between the network units.
Specifically, according to the communication structure between network units, a connection mode on a topology control bottom plate is designed, and the specific method is as follows:
if no communication requirement exists between the network units, a relay and a connecting line are not arranged on the topology control base plate;
if there is a communication demand between the network units, the communication lines of the main network nodes of any network unit on the topology control bottom plate are respectively connected with the communication lines of the main network nodes of other network units on the topology control bottom plate, or the communication lines of the main network nodes of other network units on the topology control bottom plate are connected through relays.
Example 7:
an ethernet network topology design method, as shown in fig. 6, specifically comprises the following steps:
s1, acquiring the number of communication nodes of an Ethernet network topology structure to be constructed and the communication frequency between the communication nodes;
s2, analyzing communication frequencies among the communication nodes, and dividing the communication nodes with the communication frequencies larger than a threshold value and within a preset number into a network unit;
s3, selecting the communication node with the largest communication line number in each network unit as a main network node, and the rest communication nodes as sub-network nodes;
s4, designing a connection mode on the topology control board card according to a communication structure in the network unit;
specifically, according to the communication structure in the network unit, the connection mode on the topology control board card is designed, and the specific method is as follows:
if the communication nodes in the network unit are in a star communication mode, the ports of the topology control board cards connected with the main network node are respectively and electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay, and the ports of the two adjacent topology control board cards connected with the sub-network nodes are respectively and electrically connected through a relay;
if the communication nodes in the network unit are in a ring communication mode, the ports connected with the main network node on the topology control board are respectively and electrically connected with the ports of each topology control board connected with the sub-network nodes through a relay, and the ports of the adjacent two topology control boards connected with the sub-network nodes are respectively and electrically connected through a relay.
S5, designing a connection mode on the topology control bottom plate according to the communication structure between the network units.
Specifically, according to the communication structure between network units, a connection mode on a topology control bottom plate is designed, and the specific method is as follows:
if no communication requirement exists between the network units, a relay and a connecting line are not arranged on the topology control base plate;
if there is a communication demand between the network elements, the main network nodes of two adjacent network elements are connected with each other on the communication line on the topology control bottom plate or are connected with each other through a relay.
As can be seen from step S4 in embodiments 6 and 7, if the network element is in a star communication mode, the main network node and the sub-network node can construct a star network topology structure, or can construct a ring network topology structure.
As can be seen from step S5 in embodiments 6 and 7, if there is a communication requirement between the network elements, the main network node of one network element may be connected to the other main network nodes, or two adjacent main network nodes may be connected to each other, and as can be seen from embodiment 5, the sub-network nodes of different network elements may be connected at will.
Example 8:
the Ethernet network topology structure using method comprises the following specific steps:
s1, judging whether the communication requirements in all network units are updated or need to be optimized;
if the network topology control board card is updated or needs to be optimized, analyzing the communication mode in the current network unit, designing the network topology structure in the network unit, and controlling the corresponding relay on the topology control board card to be opened or closed according to the designed network topology structure in the network unit to complete the recombination of the network topology structure in the network unit.
S2, judging whether the communication requirements among all network units are updated or need to be optimized;
if the network topology is updated or needs to be optimized, analyzing the communication mode between the current network units and designing the network topology structure between the network units, and controlling the corresponding relays on the topology control bottom plate to be opened or closed according to the network topology structure between the network units to complete the network topology structure reorganization between the network units.
It should be noted that the foregoing examples are merely for clearly illustrating the technical solution of the present invention, and those skilled in the art will understand that the embodiments of the present invention are not limited to the foregoing, and that obvious changes, substitutions or alterations can be made based on the foregoing without departing from the scope covered by the technical solution of the present invention; other embodiments will fall within the scope of the invention without departing from the inventive concept.
Claims (18)
1. An ethernet network topology comprising: more than one network element;
each network unit comprises more than three network nodes and topology control boards;
the plurality of network nodes of each network element comprises a main network node and a plurality of sub-network nodes;
the main network node and the sub-network nodes are respectively connected to different ports of the topology control board card;
the ports of the topology control board cards connected with the main network nodes are respectively and electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay.
2. An ethernet network topology according to claim 1, wherein the ports of two adjacent topology control cards to which the sub-network nodes are connected are electrically connected by a relay, respectively.
3. An ethernet network topology according to claim 1 or 2, wherein said network element is one.
4. An ethernet network topology according to claim 1 or 2, wherein there are two network elements, which do not communicate with each other.
5. The ethernet network topology according to claim 1, wherein the main network node and the sub-network node of each of the network elements are connected to a topology control board card through a topology control backplane in the following specific connection manner:
the main network node and the sub network nodes are connected with one input end of the topology control base plate through one physical layer interface, and the output end corresponding to each input end of the topology control base plate is connected with one input end of the topology control board card through one physical layer interface.
6. The ethernet network topology according to claim 5, wherein said network elements are three, and wherein said three network elements are in communication with each other by the following manner:
the main network nodes of two adjacent network units are connected with each other on a communication line on a topology control bottom plate or are connected with each other through a relay.
7. The ethernet network topology according to claim 5, wherein the number of network elements is four, and the four network elements are in communication with each other by the following specific connection manner:
the communication lines of the main network nodes of any network element on the topology control bottom plate are respectively connected with the communication lines of the main network nodes of other network elements on the topology control bottom plate, or the communication lines of the main network nodes of other network elements on the topology control bottom plate are connected through relays.
8. The ethernet network topology of claim 5, wherein said network elements are two, and wherein said two network elements are in communication with each other by:
any one or more sub-network nodes in each network element are connected with each other on a communication line on a topology control bottom plate or are connected with each other through a relay.
9. An ethernet network topology as recited in claim 1, wherein the ethernet network topology further comprises a relay control chip.
10. The ethernet network topology of claim 9, wherein said relay control chip is electrically connected to each relay via a plurality of lines, respectively, for receiving a current status of the relay or controlling the relay to open and close.
11. The ethernet network topology of claim 9, wherein said relay control chip is electrically connected to a master network node of each network element, respectively, through which a current state of a relay is received or relay on/off is controlled.
12. The Ethernet network topology design method is characterized by comprising the following steps:
acquiring the number of communication nodes of an Ethernet network topology structure to be constructed and the communication frequency among the communication nodes;
analyzing communication frequencies among the communication nodes, and dividing the communication nodes with the communication frequencies larger than a threshold value and within a preset number into a network unit;
selecting the communication node with the largest communication line number in each network unit as a main network node, and the rest communication nodes as sub-network nodes;
according to the communication structure in the network unit, designing a connection mode on the topology control board card;
and designing a connection mode on the topology control bottom plate according to the communication structure between the network units.
13. The method for designing an ethernet network topology according to claim 12, wherein the connection mode on the topology control board card is designed according to the communication structure in the network element, and the method comprises the following steps:
if the communication nodes in the network unit are in a star communication mode, the ports of the topology control board cards connected with the main network nodes are electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay respectively;
if the communication nodes in the network unit are in a ring communication mode, the ports connected with the main network node on the topology control board are respectively and electrically connected with the ports of each topology control board connected with the sub-network nodes through a relay, and the ports of the adjacent two topology control boards connected with the sub-network nodes are respectively and electrically connected through a relay.
14. The method for designing an ethernet network topology according to claim 12, wherein the connection mode on the topology control board card is designed according to the communication structure in the network element, and the method comprises the following steps:
if the communication nodes in the network unit are in a star communication mode, the ports of the topology control board cards connected with the main network node are respectively and electrically connected with the ports of the topology control board cards connected with the sub-network nodes through a relay, and the ports of the two adjacent topology control board cards connected with the sub-network nodes are respectively and electrically connected through a relay;
if the communication nodes in the network unit are in a ring communication mode, the ports connected with the main network node on the topology control board are respectively and electrically connected with the ports of each topology control board connected with the sub-network nodes through a relay, and the ports of the adjacent two topology control boards connected with the sub-network nodes are respectively and electrically connected through a relay.
15. The method for designing an ethernet network topology according to claim 12, wherein the connection mode on the topology control backplane is designed according to the communication structure between the network elements, and the method comprises the following steps:
if no communication requirement exists between the network units, a relay and a connecting line are not arranged on the topology control base plate;
if there is a communication demand between the network units, the communication lines of the main network nodes of any network unit on the topology control bottom plate are respectively connected with the communication lines of the main network nodes of other network units on the topology control bottom plate, or the communication lines of the main network nodes of other network units on the topology control bottom plate are connected through relays.
16. The method for designing an ethernet network topology according to claim 12, wherein the connection mode on the topology control backplane is designed according to the communication structure between the network elements, and the method comprises the following steps:
if no communication requirement exists between the network units, a relay and a connecting line are not arranged on the topology control base plate;
if there is a communication demand between the network elements, the main network nodes of two adjacent network elements are connected with each other on the communication line on the topology control bottom plate or are connected with each other through a relay.
17. The method for using the Ethernet network topology structure is characterized by comprising the following specific steps:
judging whether the communication requirements in all network units are updated or need to be optimized;
if the network topology control board card is updated or needs to be optimized, analyzing the communication mode in the current network unit, designing the network topology structure in the network unit, and controlling the corresponding relay on the topology control board card to be opened or closed according to the designed network topology structure in the network unit to complete the recombination of the network topology structure in the network unit.
18. The method for using an ethernet network topology of claim 17, further comprising the steps of:
judging whether the communication requirements among all network units are updated or need to be optimized;
if the network topology is updated or needs to be optimized, analyzing the communication mode between the current network units and designing the network topology structure between the network units, and controlling the corresponding relays on the topology control bottom plate to be opened or closed according to the network topology structure between the network units to complete the network topology structure reorganization between the network units.
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| CN117527598A (en) * | 2024-01-05 | 2024-02-06 | 辅易航智能科技(苏州)有限公司 | Sensor communication switching device and system |
| CN117527598B (en) * | 2024-01-05 | 2024-03-19 | 辅易航智能科技(苏州)有限公司 | Sensor communication switching device and system |
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