• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The communication network (16), adapted for interconnecting electronic equipment (14), comprises: - a set (18) of at least three network switches (20), each connected to all the other network switches (20) of the set, each network switch (20) having a plurality of communication ports (24), and - a plurality of data links (22), each configured to bidirectionally connect a network switch (20) to another network switch (20) of the assembly (18), via the corresponding communication ports (24), at least two separate network switches (20) being configured to be directly connected to the same electronic equipment (14).
    公开号:FR3034602A1
    申请号:FR1652825
    申请日:2016-03-31
    公开日:2016-10-07
    发明作者:Christian Cantaloube
    申请人:Thales SA；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION The present invention relates to a communication network, comprising a plurality of network switches, each network switch comprising a plurality of communication ports. The present invention also relates to a set of such communication networks, each network switch of a network being connected to a respective network switch of each other network.
    [0002] The invention also relates to a communication installation comprising a plurality of electronic equipment and such a communication network or such a set of communication networks. The invention also relates to an aircraft comprising such a communication installation.
    [0003] The invention relates to the field of redundant communication networks, that is to say communication networks comprising several network switches and allowing multiple communication paths via different network switches. Such redundant networks allow the communication of data between two electronic equipment connected to the communication network, despite the failure of one of the network switches. The invention relates more particularly to the field of avionics communication networks, installed on board aircraft, comprising network switches which are then preferably compliant with the ARINC 664 standard. An avionics communication network with redundancy, such a network is known. comprising two communication channels, also called communication plans, arranged in parallel (or mirror). Each communication chain comprises one or more network switches (English switch), the network switches of each chain being connected to each other if necessary. Two successive network switches of a communication chain are interconnected by a bidirectional data link to allow two-way data communication between the two network switches. The electronic equipment to communicate via this network of switches, also called subscriber equipment, are connected to a switch of each communication chain to obtain communication redundancy via the two chains in parallel. The number of network switches is preferably identical from one communication channel to another, and the communication network is then said to be mirrored, with its two parallel communication channels comprising the same number of network switches. Such a mirror network is, for example, the AFDX (Avionics Full Duplex Switched Ethemet) network with network switches compliant with the ARINC 664 standard.
    [0004] However, such a communication network is particularly sensitive to the failure of one or more network switches. Indeed, a communication channel becomes inoperative as soon as one of its network switches is faulty, and the failure of two network switches is likely to cause a total malfunction of the network, if these two network switches each belong to a chain respective communication. The object of the invention is therefore to provide a communication network having greater robustness of operation in the event of failure of one or more of its network switches.
    [0005] To this end, the subject of the invention is a communication network, adapted for interconnecting electronic equipment, the communication network comprising: a set of at least three network switches, each connected to all the other network switches; together, each network switch having a plurality of communication ports, and a plurality of data links, each configured to bidirectionally connect a network switch to another network switch in the set via the corresponding communication ports. for each pair of separate network switches (20) out of the set (18), said separate network switches being configured to be directly connected to the same electronic equipment. According to other advantageous aspects of the invention, the communication network comprises one or more of the following characteristics, taken separately or in any technically possible combination: each network switch is configured to transmit at least one message from a port inputting to an output port according to a configuration table of the connections between the network switches of the set, the input port and the output port being each formed by a communication port; - The communication network further comprises a configuration module adapted to determine the configuration table; The configuration module is adapted to calculate, via the connection configuration table, a first and a second communication path, each communication path passing through at least one network switch, the first communication path being distinct from the second communication path, the one or more network switches associated with the first communication path being separate from the network switch or switches associated with the second communication path; the configuration module is configured to transmit, to each network switch, the determined configuration table; - the configuration module is integrated in each network switch; the configuration table is predefined and stored in each network switch; - all network switches in the set are identical; and - each network switch complies with the ARINC 664 standard; The invention also relates to a set of communication networks, adapted to interconnect electronic equipment, the assembly comprising a plurality of communication networks, in which each communication network is as defined above, and each switch network of one network is connected to a respective network switch of each other network. The invention also relates to a communication installation comprising a plurality of avionic equipment and a communication network or a set of communication networks, disposed between the avionic equipment, in which the communication network or the set of communication networks is as defined above. According to other advantageous aspects of the invention, the communication installation comprises one or more of the following features, taken separately or in any technically possible combination: each electronic equipment is connected to at least two separate network switches, via one respective of its communication ports for each network switch; and the communication installation is an avionic installation intended to be arranged on board an aircraft, the electronic equipment being avionics equipment complying with the ARINC 664 standard, and each network switch being in conformity with the ARINC 664 standard. Another subject of the invention is an aircraft comprising a communication installation, in which the communication installation is as defined above.
    [0006] These features and advantages of the invention will appear more clearly on reading the description which follows, given solely by way of nonlimiting example, and with reference to the appended drawings, in which: FIG. a schematic representation of an aircraft equipped with a communication installation comprising a plurality of avionic equipment and a communication network disposed between the avionic equipment, according to a first embodiment; FIG. 2 is a view similar to that of FIG. 1, according to a second embodiment of the invention; FIG. 3 is a view similar to that of FIG. 1, according to a third embodiment of FIG. and FIG. 4 is a schematic representation of an aircraft equipped with a communication installation comprising a plurality of avionic equipment and a set of three communication networks, arranged between the avionic equipment.
    [0007] In FIG. 1, an aircraft 10 comprises a communication installation 12. The communication installation 12 is intended to be arranged on board the aircraft 10. In a variant, the communication installation 12 is intended to be arranged at edge of a vehicle, such as a railway vehicle, or a maritime vehicle, or a spacecraft (launcher, satellite, shuttle). The communication installation 12 comprises a plurality of electronic equipment 14 and a communication network 16 disposed between the electronic equipment 14, said network 16 comprising an assembly 18 of at least three network switches 20 and a plurality of data links 22 connecting the switches network 20.
    [0008] The communication installation 12 is preferably an avionic installation intended to be arranged on board the aircraft 10, and the electronic equipment 14 is then avionic equipment, preferably conforming to the ARINC 664 standard, each network switch 20 being then also preferably in accordance with the ARINC 664 standard.
    [0009] Each electronic equipment 14 comprises at least two distinct communication ports 24. In the embodiment of FIG. 1, each electronic equipment item 14 has exactly two communication ports 24, namely a first communication port 24, also denoted A, and a second communication port 24, also denoted B.
    [0010] Each electronic equipment 14 is connected to at least two separate network switches 20 via a respective communication port 24 for each network switch 20. The electronic equipment 14 is connected to the network switch 20 by data links 26 external to the network. communication 16, the data links 22 then being called internal links. Each external data link 26 is, for example, a bidirectional link enabling data to be transmitted in the two directions of communication between the electronic equipment 14 and the corresponding network switch 20 from one to the other, and vice versa.
    [0011] Each electronic equipment item 14 is preferably an equipment of an avionic system, comprising for example one or more of the following systems: visualization system, warning system, aircraft flight management system, also called FMS (from the English Flight Management System), also known as GPS (Global Positioning System), an inertial reference system, also known as the IRS (Inertial Reference System), centralized maintenance system or recording, autopilot system. More generally, it can be any electronic equipment on board the vehicle, including the control equipment of the onboard systems: engines, fuel, landing gear, braking, air conditioning, pressurization, detection of 'fire. In the embodiment of FIG. 1, the various electronic devices 14 are successively numbered E1, E2, E3, E4, E5 and E6 so as to be able to identify them with respect to each other when determining communication paths. between the different electronic equipment 14, as will be described in more detail later. The communication network 16 comprises the set 18 of at least three network switches 20, and the plurality of data links 22. The communication network 16 further comprises a configuration module 30 adapted to determine a connection configuration table. between the network switches 20 of the set 18, such as Table 1 or 2 defined below. The communication network 16 is configured to interconnect the electronic equipment 14. The communication network 16 is preferably in accordance with the ARINC 664 standard, each network switch 20 and the various data links 22 then being in conformity with the ARINC 664 standard.
    [0012] Within the assembly 18, each network switch 20 is connected, directly as in the example of FIGS. 1, 2 and 4 or indirectly, as in the example of FIG. other network switches 20 of the set, via the data links 22. At least two separate network switches 20 are configured to be directly connected to the same electronic equipment 14, and for each electronic equipment 14 in order to have a redundant communication network 16. In other words, each electronic equipment 14 is directly connected to at least two distinct network switches 20 of the communication network 16. Each network switch 20 (of the English switch) is known per se, and comprises several communication ports 24, also called connection ports.
    [0013] Each network switch 20 is, for example, an Ethernet switch. Each network switch 20 is then configured to transmit at least one message from an input port to an output port, according to a configuration table of the connections between the network switches 20 of the set 18, the input port and the output port being each formed by a communication port 24.
    [0014] All network switches 20 of the set 18 are for example identical. This then makes it possible to improve the interoperability of the communication network 16. The number of network switches 20 of the set 18 is greater than or equal to 3, and preferably equal to 3 or 4. A number of network switches 20 equal to 3 (FIG. 2) or 4 (FIGS. 1 and 3) makes it possible to have a communication network 16 that is compact and inexpensive, while offering good reliability, despite the possible failure of a network switch 20. As an embodiment of FIG. 1, the number of network switches 20 is equal to 4, and each network switch 20 comprises at least six communication ports 24, three communication ports 24 being used to connect the network switch 20 to the other switches. network 20 of the assembly 18, and the other communication ports 24 serving to connect said network switch 20 to electronic equipment 14. In this example of FIG. 1, for each network switch 20, at least three communication ports 24 are dedicated to the links with the electronic equipment 14, and each network switch 20 is then connected to at least three separate electronic equipment 14. In the embodiment of FIG. 1, the various network switches 20 are successively numbered SW1, SW2, SW3 and SW4, so as to be able to identify them with respect to each other when determining the different communication paths.
    [0015] The data links 22 are configured to bidirectionally connect a network switch 20 to another network switch 20 of the set 18, via the corresponding communication ports 24. Each data link 22 is, for example, a bidirectional link connecting a communication port 24 of a network switch 20 to a communication port 24 of another network switch 20. The data link 22 is bidirectional when it allows 5 the transmission of data between two network switches 20 in the two directions of communication, from one to the other, and vice versa. Each data link 22, 26 is preferably an Ethernet link. In particular, each data link 22, 26 is preferably in accordance with the ARINC 664 standard.
    [0016] Each data link 22, 26 is preferably a wire link, such as an electrical link or an optical fiber link. Each data link 22, 26 is configured to allow a certain data rate, for example between 10 Megabits / second and 10 Gigabits / second. Inside a network switch 20, each message received on a communication port 24, then called the input port, is sent back to one or more other ports 24, then called output ports, of this same switch. depending on the electronic equipment (s) 14 recipients of this message and following the configuration table of the connections between the network switches 20. The definition of the connections between the network switches 20 and the transmission path of the messages inside each allows in fine to define the communication paths between the subscriber equipment 14. Each communication port 24 is, for example, an Ethernet port, in particular a port compliant with the ARINC 664 standard. The configuration module 30 is adapted to determine the array 25 configuration of the connections between the network switches 20 of the communication network 16. The configuration module 30 is then adapted to calculate, via said configuration table, for each pair of electronic equipment 14, a first and a second communication path between the two electronic equipment 14 of said pair, each communication path passing through at least one network switch 20. In the example of 1 to 4, the configuration module 30 is a separate module of the network switches 20. The configuration module 30 is then further configured to transmit to each network switch 20, the determined configuration table. The configuration module 30 is connected to each of the network switches 20 by respective data links, not shown for the sake of clarity of the figures, these data links being wired links or wireless links.
    [0017] As a variant not shown, the configuration module 30 is integrated in each network switch 20. In another variant, the configuration table is predefined using a tool external to the communication network 16. The configuration table is then stored in each network switch 20, prior to the implementation of the communication network 16. According to this variant, the communication network 16 does not include a configuration module. In order to have communication redundancy, the first communication path is distinct from the second communication path, the one or more network switches associated with the first communication path being separate from the network switch (s) associated with the second communication path. As an optional supplement, the configuration module 30, or the external tool if necessary, is adapted to calculate even more communication paths between two corresponding electronic devices 14, namely at least three communication paths, to further increase the Reliability of the communication network 16. In general, the number of possible communication paths between two electronic devices 14 depends on the number of communication ports 24 of which each electronic equipment 14 is equipped, the number of network switches 20 of the set 18 , and data links 22, 26 arranged between these elements 14, 20. The definition of the connections between the network switches 20 of the set is for example carried out by means of the configuration table, such as Table 1 represented below. after and corresponding to the embodiment of Figure 1.
    [0018] 3034602 9 Port E1-A E1-B E2-A E2-B E3-A E3-B E4-A E4-B E5-A E5-B E6-A E6-B Transmitting Receiver Commu- SW1 SW4 SW1 SW2 SW2 SW3 SW2 SW4 SW3 SW4 SW1 SW3 connec- tor E1-A SW1 SW1 SW1 SW1 SW1 + SW2 SW1 SW1 SW1 SW4 SW4 SW4 SW4 SW4 SW4 SW1 SW1 SW1 SW1 SW1 + SW1 SW2 SW2 SW3 SW2 SW2 SW2 + SW2 SW2 + SW4 SW3 SW3 SW2 SW2 + SW1 SW2 SW2 + SW1 SW3 SW3 SW3 + SW3 SW3 SW3 + SW3 SW4 SW4 SW4 SW4 A SW2 SW2 + SW1 SW2 + SW1 SW2 SW2 + SW3 SW2 + SW1 SW4-SW4 SW4 SW4 + SW3 SW4 SW4 + SW3 SW3 SW3 + SW1 + SW2 SW3 + SW2 SW3 + SW1 SW5-SW4 + SW2 SW4 + SW3 SW4 SW4 SW4 SW1 SW1 SW1 SW1 SW1 + SW1 SW2 SW3 SW3 SW3 SW3 SW3 SW3 SW4 SW4 SW4 Table 1 In table 1 above, each communication port 24 is identified by the number, from El to E6, of the electronic equipment 14 to which it belongs, followed by the letter A or B making it possible to identify it among the two communication ports of this electronic equipment 14. The communication port 24 receiving is identified in a similar way with the number, among El to E6, of the electronic equipment 14 to which it belongs, followed by The network switches 20 used for the different communication paths are also identified by their numbers SW1 to SW4, with the convention that SWi + SWj means that the communication path first goes through the communication path. network switch numbered SWi, then by the network switch numbered SWj, i and j being between 1 and 4. The architecture of the communication network 16 according to the invention is thus a flat architecture, where all the network switches 20 are interconnected between them, instead of a network architecture of the state of the art with a distribution of network switches in two parallel mirror planes.
    [0019] With the architecture of the communication network 16 according to the invention, each electronic equipment 14 intended to be connected to this communication network 16 is then connected to at least two different network switches 20 of the set of network switches 20, in order to have at least two distinct communication paths 5 possible with another electronic equipment 14 also connected to the communication network 16. A message redundantly transmitted by an electronic equipment 14 via these two communication ports 24 is then conveyed via two different communication paths to the receiving electronic equipment 14.
    [0020] A conventional dual receiving mechanism of the other electronic equipment 14 is then provided, the first valid received message being taken into account, and the second redundant incoming message being ignored when received. Those skilled in the art will note that the architecture of the communication network 16 according to the invention makes it possible to increase the reliability of operation, since for the same number of network switches 20 within the communication network 16, the number of pairs Different network switches 20 to which electronic equipment 14 may be connected is higher with the architecture of the communication network 16 according to the invention than with the architecture of the communication network according to the state of the art.
    [0021] By way of example, with four network switches 20, as in the embodiment of FIG. 1, the number of pairs of different network switches 20 is then equal to 6, whereas with the network architecture of FIG. communication according to the state of the art, there are in this case two pairs of network switches in parallel. With three network switches 20, as will be described later for the second embodiment with reference to FIG. 2, the number of pairs of different network switches 20 is 3, and is even greater than that obtained in FIG. case of the communication network of the state of the art, although the number of network switches 20 is less in this case.
    [0022] FIG. 2 illustrates a second embodiment for which elements identical to the first embodiment, described above, are identified by identical references, and are not described again. According to this second embodiment, the number of network switches 20 of the set 18 is equal to 3, and the network switches 20 are then numbered SW1, 5W2 and 5W3.
    [0023] In a similar manner to the first embodiment, each network switch 20 is connected to all the other network switches 20 of the set 18, and the network switches 20 then form a triangle network. According to this second embodiment, each network switch 20 comprises at least four communication ports 24, two communication ports 24 making it possible to connect said network switch 20 to the two other network switches 20, and at least two other communication ports 24 enabling connecting said network switch 20 to at least two separate electronic equipment 14. In the exemplary embodiment of FIG. 2, the communication installation 12 comprises three electronic equipments 14, then numbered E1, E2, E3. Similarly to the first embodiment, each electronic equipment 14 is connected to at least two separate network switches 20, via a respective one of these communication ports 24 for each network switch 20, each network switch 20 having at least two ports communication 24.
    [0024] In the exemplary embodiment of FIG. 2, each electronic equipment item 14 has exactly two communication ports 24, denoted respectively A and B. The configuration module 30 is also adapted to calculate at least two distinct communication paths between two pieces of equipment. 14 different electronic, and to define the transmission of the message between the input port and the output port or ports, to be performed by each switch 20, on each message that passes through said switch 20. The definition of connections is for example performed using the configuration table, such as Table 2 shown below and corresponding to the embodiment of Figure 2. Receiver port El-A E1-B E2-A E2-B E3-A E3-B Switch port SW1 SW3 SW1 SW2 SW2 SW3 connected transmitter El-A SW1 SW1 SW1 SW1 SW1 SW3 SW1 SW1 SW1 SW1 SW1 SW2 SW2 SW2 SW2 SW2 SW3 SW3 A SW2 SW2 + SW 1 SW2 SW 1 SW2 SW3 SW3 SW3 + SW2 In a similar manner to the first embodiment, in Table 2 above, a transmitting communication port 24 is indicated by the number, from E1 to E3, of the electronic equipment 14 to which it belongs. followed by the letter A or B, and the communication port 24 receiver is similarly marked by the number of the electronic equipment 14, from El to E3, followed by the letter A or B corresponding to the communication port 24 considered among the two communication ports of the corresponding electronic equipment 14. The network switches 20 are also identified by their number, namely SW1, SW2 or SW3, with the same convention that SWi + SWj that the communication path first passes through the network switch numbered SWi, then by the switch. network numbered SWj, i and j being between 1 and 3. The operation of the communication installation 12 according to this second embodiment is similar to that of the communication installation according to the first embodiment, and is not not described again.
    [0025] The advantages of the communication installation 12 according to this second embodiment are similar to those of the first embodiment, and are not repeated here. According to this second embodiment, the lower number of network switches 20 also makes it possible to further reduce the size of the communication network 16, as well as its cost. FIG. 3 illustrates a third embodiment for which the elements identical to the first embodiment, described above, are marked with identical references, and are not described again.
    [0026] According to this third embodiment, each network switch 20 is connected to all other network switches 20 of the set 18, and each network switch 20 is not directly connected to all other network switches 20 via a data link. 22 corresponding. By way of example, the network switches having the number SW1 and 5W3 are not directly connected to each other, and are connected via the network switch having the number 5W2, or else via the network switch having the following: number 5W4. The network switches with the number 5W2 and 5W4 are also not directly connected to each other, and are interconnected via the network switch SW1 or the network switch 5W3.
    [0027] Those skilled in the art will also observe that in the embodiment of FIGS. 1 and 2 respectively corresponding to the first and second embodiments, each network switch 20 is directly connected to all the other network switches 20, via a corresponding data link 22. The operation of the communication installation 12 according to this third embodiment is similar to that of the communication installation according to the first embodiment, apart from the configuration table which differs substantially. The definition of the connections between the network switches 20 of the set according to this third embodiment is for example carried out by means of the configuration table, such as Table 3 represented below and corresponding to the exemplary embodiment of FIG. 3.
    [0028] 10 Port E1-A E1-B E2-A E2-B E3-A E3-B E4-A E4-B E5-A E5-B E6-A E6-B Receiver Transmitter Com- SW1 SW4 SW1 SW2 SW2 SW3 SW2 SW4 SW4 SW4 SW1 SW3 SW1 SW1 SW1 + SW3 SW4 SW4 + SW4 SW4 SW4 SW4 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW2 SW2 SW2 SW2 SW2 SW3 SW4 SW4 SW3 SW2 SW2 SW2 SW2 SW2 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 -A SW2 SW2 + SW1 SW2 + SW1 SW2 SW2 + SW3 SW2 + SW1 SW4-SW4 SW4 + SW4 SW4 SW4 + SW3 SW1 + SW2 SW3 SW3 SW3 + SW2 SW3 + SW4 + SW4 SW1 SW1 SW5 SW4 SW4 SW4 SW4 SW4 SW4 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW1 SW2 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 Table 3 Those skilled in the art will understand of course that other configuration tables can be envisaged in the exemplary embodiment of FIG. by favoring a message transmission in the trigonometric direction between the network switches SW1 and SW3 and between the network switches SW2 and SW4; Table 3 having been obtained from Table 1, giving priority to a transmission of the messages in the anti-trigonometric direction between the network switches SW1 and SW3 and between the network switches SW2 and SW4. The advantages of the communication installation 12 according to this third embodiment are similar to those of the first embodiment, and are not repeated here. According to this third embodiment, the lower number of data links 22 also makes it possible to reduce substantially the size of the communication network 16, as well as its cost, but the communication installation 12 according to this third embodiment is however, more sensitive to a possible malfunction of a network switch 20, some paths between two subscriber equipment 14 passing through three separate network switches 20 according to Table 3, while the paths between two subscriber equipment 14 according to Table 1 pass by at most two separate network switches 20.
    [0029] FIG. 4 illustrates a fourth embodiment for which elements identical to the first embodiment, described above, are marked with identical references, and are not described again. According to this fourth embodiment, the communication installation 12 comprises several electronic equipment 14 and a set 40 of communication networks 16, the assembly 40 being disposed between the electronic equipment 14. In FIG. 4, for the sake of simplification of the drawing, the network switches 20 have been represented in point form, and only two electronic equipment 14, numbered El, E2, are visible. The assembly 40 comprises at least two communication networks 16. In the example of FIG. 4, the assembly 40 comprises three communication networks 16, namely a first network 16M, a second network 16N and a third network 16P . Each network 16 comprises, in a manner analogous to the other embodiments described above, at least three network switches 20 and a plurality of data links 22 connecting the network switches 20.
    [0030] In the example of FIG. 4, the three network switches 20 of the first network 16M are numbered successively SW1M, SW2M and SW3M, the three network switches 20 of the second network 16N are successively numbered SW1N, SW2N and SW3N, and the three switches network 20 of the third network 16P are successively numbered SW1P, SW2P and SW3P.
    [0031] Each network switch 20 of a network 16 is connected to a respective network switch 20 of each other network 16. In the example of FIG. 4, each network switch 20 of a network is connected directly to a network switch 20 In this example, each network switch comprising a given digit, among '1', '2' and '3', in its number is connected directly to the other network switches. including the same number in their number. In other words, the network switches SW1M, SW1N and SW1P are connected directly to each other by data links 22, the network switches SW2M, SW2N and SW2P are also connected directly to each other, and the network switches SW3M, SW3N and SW3P are also connected directly between them.
    [0032] The communication installation 12 is preferably an avionic installation intended to be arranged on board the aircraft 10, and the electronic equipment 14 is then avionic equipment, preferably conforming to the ARINC 664 standard, each network switch 20 being then also preferably in accordance with the ARINC 664 standard.
    [0033] The operation of the communication facility 12 according to this fourth embodiment is similar to that of the communication facility according to the first embodiment, and is not described again. The advantages of the communication installation 12 according to this fourth embodiment are similar to those of the first embodiment, and are also not repeated here. According to this fourth embodiment, the communication installation 12 makes it possible to increase the number of electronic equipment 14 subscribers, to make a more complex system. It is thus conceived that the communication installation 12 and the communication network 16 according to the invention make it possible to have a better operating reliability in the event of failure of at least one of the network switches 20, or even to reduce the number of network switches 20 when it is equal to 3, as for the communication installation 12 according to the second embodiment.
    [0034] As previously described, the number of different network switch pairs to which electronic equipment 14 is connectable is higher with the architecture of the communication network 16 according to the invention than with the network architecture of the network. communication according to the state of the art, and one skilled in the art will observe that in each of the embodiments described above and in each of Figures 1 to 3, for each pair of separate network switches 20 selected from the set 18 of network switches 20, the separate network switches 20 of said pair are configured to be directly connected to the same electronic equipment 14, that is to say to a single electronic equipment 14. In other words, for any pair 20 separate network switches 5 selected from the set 18 of network switches 20, the two separate network switches 20 forming ladit The pair are configured to be directly connected to the same electronic equipment 14, i.e. to a single electronic equipment 14. In the example of FIG. 1, the number of different network switch pairs 20 is equal to 6, as indicated above, and the 6 possible pairs are the following 10 pairs: (SW1, SW2), (SW1, SW3), (SW1, SW4), (SW2, SW3), (SW2, SW4) and (SW3, SW4). For each of these 6 pairs, the two separate network switches 20 forming said pair are configured to be connected directly to the same electronic equipment 14, that is to say to a single electronic equipment 14, namely the equipment E2 for the pair (SW1, SW2), the equipment E6 for the pair (SW1, SW3), the equipment E1 for the pair (SW1, SW4), the equipment E3 for the pair (SW2, SW3), equipment E4 for the pair (SW2, SW4) and the equipment E5 for the pair (SW3, SW4), as shown in FIG. 1. In the example of FIG. 2, the number of pairs of different network switches 20 is equal to 3, as indicated above, and the 3 possible pairs are the following pairs: (SW1, SW2), (SW1, SW3) and (SW2, SW3). For each of these 3 pairs, the two separate network switches 20 forming said pair are configured to be connected directly to the same electronic equipment 14, that is to say to a single electronic equipment 14, namely the equipment E2 for the pair (SW1, SW2), the equipment E1 for the pair (SW1, SW3) and the equipment E3 for the pair (SW2, SW3), as shown in FIG. 2. In the example of FIG. the number of pairs of different network switches is equal to 6, similarly to FIG. 1, and the 6 possible pairs are the following pairs: (SW1, SW2), (SW1, SW3), (SW1, SW4) , (SW2, SW3), (SW2, SW4) and (SW3, SW4). For each of these 6 pairs, the two separate network switches 20 forming said pair are configured to be directly connected to the same electronic equipment 14, that is to say to a single electronic equipment 14, namely the equipment E2 for the pair (SW1, SW2), the equipment E6 for the pair (SW1, SW3), the equipment E1 for the pair (SW1, SW4), the equipment E3 for the pair (SW2, SW3), the equipment E4 for the pair (SW2, SW4) and the equipment E5 for the pair (SW3, SW4), as shown in FIG.
    [0035] As indicated above, this then makes it possible, for the same number of network switches 20 within the communication network 16, to increase the operating reliability of the communication network 16 with respect to the communication network of the state of the network. technical. This improved reliability is due to better redundancy between the different network switches 20 of the set 18, each network switch 20 having a redundant network switch 20 within the set 18, i.e. the other network switch 20 of the A pair of network switches 20 connected directly to the same electronic equipment 14. In addition, there are at least two electronic equipment 14 connected to the same network switch 20, for which the network switch 20 which is redundant of said network switch 20 varies by one. electronic equipment 14 to another. Those skilled in the art will furthermore observe that in the example of FIGS. 1 to 3, for each pair of electronic equipment 14 with the two electronic equipments 14 of the pair connected to the same network switch 20, the network switch 20 which is redundant of said same network switch 20 varies from one electronic equipment 14 to the other of the pair.
    权利要求:
    Claims (15)
    [0001]
    CLAIMS1.- Communication network (16; 16M, 16N, 16P), adapted for interconnecting electronic equipment (14), the communication network (16; 16M, 16N, 16P) comprising: - a set (18) of at least three network switches (20) each connected to all other network switches (20) in the set, each network switch (20) having a plurality of communication ports (24), and - a plurality of data links (22). ), each configured to bidirectionally connect a network switch (20) to another network switch (20) of the array (18) through the corresponding communication ports (24) for each pair of network switches (20). ) distinct from the set (18), said separate network switches (20) being configured to be directly connected to the same electronic equipment (14).
    [0002]
    The communication network (16; 16M, 16N, 16P) according to claim 1, wherein each network switch (20) is configured to transmit at least one message from an input port to an output port according to a table. configuring the connections between the network switches (20) of the assembly (18), the input port and the output port being each formed by a communication port (24).
    [0003]
    The communication network (16; 16M, 16N, 16P) according to claim 2, wherein the communication network (16; 16M, 16N, 16P) further comprises a configuration module (30) adapted to determine the array. configuration.
    [0004]
    The communication network (16; 16M, 16N, 16P) according to claim 3, wherein the configuration module (30) is adapted to calculate, via the connection configuration table, a first and a second communication path. , each communication path passing through at least one network switch (20), the first communication path being separate from the second communication path, the one or more network switches (20) associated with the first communication path being separate from the one or more network switches (20) associated with the second communication path. 3034602 19
    [0005]
    5. Communication network (16; 16M, 16N, 16P) according to claim 3 or 4, wherein the configuration module (30) is configured to transmit to each network switch (20), the determined configuration table. 5
    [0006]
    The communication network (16; 16M, 16N, 16P) according to claim 3 or 4, wherein the configuration module (30) is integrated in each network switch (20).
    [0007]
    7. The communication network (16; 16M, 16N, 16P) according to claim 2, wherein the configuration table is predefined and stored in each network switch (20).
    [0008]
    8. The communication network (16; 16M, 16N, 16P) according to any one of the preceding claims, wherein all the network switches (20) of the set (18) are identical.
    [0009]
    The communication network (16; 16M, 16N, 16P) according to any one of the preceding claims, wherein each network switch (20) is in accordance with the ARINC 664 standard.
    [0010]
    10. A set of communication networks (40), adapted to interconnect electronic equipment (14), the assembly (40) comprising a plurality of communication networks (16M, 16N, 16P), characterized in that each network of The communication (16M, 16N, 16P) is in accordance with any one of the preceding claims, and in that each network switch (20) of one network is connected to a respective network switch (20) of each other network.
    [0011]
    11.- Communication installation (12), comprising: - a plurality of electronic equipment (14), and - a communication network (16) or a set of communication networks (40), arranged between the electronic equipment (14), characterized in that the communication network (16) is according to any one of claims 1 to 9 or in that the set of communication networks (40) is in accordance with claim 10. 3034602 20
    [0012]
    The communication apparatus (12) according to claim 11, wherein each electronic equipment (14) is connected to at least two separate network switches (20), via a respective one of its communication ports (24) for each network switch (20). 5
    [0013]
    13.- Communication installation (12) according to claim 11 or 12, wherein the communication installation (12) is an avionic installation intended to be arranged on board an aircraft (10), the electronic equipment (14) being avionics equipment compliant with the ARINC 664 standard, and each network switch (20) conforming to the ARINC 664 standard.
    [0014]
    14. Aircraft (10) comprising a communication installation (12), characterized in that the communication installation (12) is in accordance with claim 13.
    [0015]
    15
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    法律状态:
    2017-03-31| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-09| PLSC| Publication of the preliminary search report|Effective date: 20170609 |
    2018-03-30| PLFP| Fee payment|Year of fee payment: 3 |
    2020-03-31| PLFP| Fee payment|Year of fee payment: 5 |
    2021-03-30| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1500647|2015-03-31|
    FR1500647A|FR3034601A1|2015-03-31|2015-03-31|COMMUNICATION NETWORK, COMMUNICATION PLANT ON AIRCRAFT AND AIRCRAFT COMPRISING SUCH A COMMUNICATION PLANT|
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