A network redundant communication system

Abstract

The present invention discloses a network redundant communication system, in which each chip can be designed with domestically produced devices to achieve complete autonomy and control. When in multi-network card mode, each network can use the same IP address. When one of the networks fails, the other network can continue to undertake the communication task. When in PRP mode, it has an electrical port communication network and two optical port networks. The electrical port and the optical port are independent of each other and can be configured with IP separately. When the optical port sends information, if one of the optical ports fails, the other optical port can ensure that the data is not lost during the transmission process and continue to undertake the communication task. The free switching between the dual network card mode and the PRP mode can meet the use requirements of more complex and harsh environments. It can also realize network redundancy design for special industries.

Description

Technical Field

[0001] The present invention relates to the field of electronic communication technology, and in particular to a network redundant communication system that can be constructed based on domestically produced chips and has low network complexity and high reliability. Background Art

[0002] Network redundancy refers to the network provided to users to prevent problems in any link from causing the entire network transmission to stop. As an important network device, the router is a component that achieves network redundancy through backup to ensure the smooth operation of the network.

[0003] In the existing technology, most network interfaces are single-channel communications, and there is little redundant design and support for network communication interfaces. At present, the general practice in the industry is to implement redundant design of network communication interfaces through network chips provided by foreign companies. Some companies also use software to implement redundant communication networks, but the communication networks implemented by software are highly complex and their reliability needs to be verified by long-term application.

[0004] Therefore, how to achieve network communication redundancy using domestically produced chips is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the invention

[0005] In view of the above problems, the present invention provides a network redundant communication system for overcoming the above problems or at least partially solving the above problems. The system can adopt a domestically produced device design to achieve complete independent control. The system adopts a domestically produced chip to achieve network communication redundant design.

[0006] The present invention provides the following scheme:

[0007] A network redundant communication system, comprising:

[0008] A processor chip, the processor chip is used to implement the transceiver processing of network signals and determine the network transceiver mode;

[0009] An FPGA chip, wherein the FPGA chip is connected to the processor chip via a target number of first communication links; the FPGA chip is used to realize alignment and forwarding of network signals and to configure a network transceiver mode;

[0010] A plurality of port physical layer chips, the number of which is the same as the number of the first communication links; each of the port physical layer chips is connected to the FPGA chip via a second communication link; the port physical layer chip is used to realize the conversion of network signals between digital signals and analog signals;

[0011] A transformer chip, a plurality of port physical layer chips are connected to the transformer chip via the target number of third communication links; the transformer chip is used for signal level coupling; the transformer chip includes the target number of electrical port network interfaces.

[0012] Preferably, the first communication link and the second communication link both include RGMI I communication links.

[0013] Preferably, the third communication link includes an MDI communication link.

[0014] Preferably: the processor chip includes an LS2K1000J chip.

[0015] Preferably: the FPGA chip includes a SMQ7K325T-FFG900 chip.

[0016] Preferably: the port physical layer chip includes a JEM88E1111HV chip.

[0017] Preferably: the transformer chip includes XECJLT1606-A.

[0018] Preferably: it also includes an optical module chip, which is connected to the processor chip via a fourth communication link; the optical module chip is used to realize the conversion of photoelectric signals; the optical module chip includes at least two optical port network interfaces.

[0019] Preferably: the optical module chip includes a HAT8545MD-D002SE chip.

[0020] Preferably: the network transceiver mode includes a dual network card mode and / or a PRP plus network card mode.

[0021] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0022] A network redundant communication system provided by an embodiment of the present application can adopt a nationally produced device design for each chip to achieve complete autonomy and control. When in multi-NIC mode, each network can use the same IP address. When one of the networks fails, the other network can continue to undertake the communication task. When in PRP mode, it has an electrical port communication network and two optical port networks. The electrical port and the optical port are independent of each other and can be configured with IP separately. When the optical port sends information, if one of the optical ports fails, the other optical port can ensure that the data is not lost during the transmission process and continue to undertake the communication task. The free switching between dual network card mode and PRP mode is enough to meet the use requirements of more complex and harsh environments. Network redundancy design for special industries can also be implemented.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural diagram of a network redundant communication system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0027] See also Figure 1 , a network redundant communication system provided by an embodiment of the present invention, such as Figure 1 As shown, the system may include:

[0028] Processor chip 1, the processor chip 1 is used to implement the transceiver processing of network signals and determine the network transceiver mode;

[0029] FPGA chip 2, the FPGA chip 2 is connected to the processor chip 1 through a target number of first communication links; the FPGA chip 2 is used to realize the alignment and forwarding of network signals and to configure the network transceiver mode;

[0030] A plurality of port physical layer chips 3, the number of which is the same as the number of the first communication links; each of the port physical layer chips 3 is connected to the FPGA chip 2 via a second communication link; the port physical layer chip 3 is used to realize the conversion of network signals between digital signals and analog signals;

[0031] Transformer chip 4, several port physical layer chips 3 are connected to the transformer chip 4 through the target number of third communication links; the transformer chip 4 is used for signal level coupling; the transformer chip 4 includes the target number of electrical port network interfaces.

[0032] The network redundant communication system provided in the embodiment of the present application can realize a multi-network card mode through the provided chips and connection methods. Multiple networks formed at the same time can have the same IP address. When one of the networks fails, the other networks can continue to undertake communication tasks, thereby realizing a network communication redundant design.

[0033] Furthermore, the first communication link and the second communication link both include RGMI I (Reduced Gigabit Medium Independent Interface: Reduced Gigabit Medium Independent Interface) communication links. RGMI I is a simplified version of GMI I, with a data bit width of 4 bits. At a transmission rate of 1000Mbps, the clock frequency is 125Mhz, and data is sampled simultaneously at the rising and falling edges of the clock. At communication rates of 100Mbps and 10Mbps, data is sampled at a single clock edge. In Gigabit Ethernet, commonly used interfaces are RGMI I and GMI I interfaces. The advantage of the RGMI I interface is that it is applicable to communication rates of 10M / 100M / 1000Mbps and occupies fewer pins.

[0034] The third communication link comprises a communication link in MDI (Medium Dependent Interface) mode. A medium dependent interface is used to describe a physical or electrical / optical interface for transmitting data from a physical layer to a physical medium in a computer network.

[0035] In practical applications, each chip provided in the embodiment of the present application can adopt domestic chips. For example, in one implementation, the embodiment of the present application can provide that the processor chip includes an LS2K1000J chip. The FPGA chip includes an SMQ7K325T-FFG900 chip. The port physical layer chip includes a JEM88E1111HV chip. The transformer chip includes an XECJLT1606-A.

[0036] Among them, Loongson LS2K1000J is a low-power general-purpose processor for industrial control and terminal applications. The chip's peripheral interfaces include two PCI E2.0, one SATA2, four USB2.0, two DVO, 64-bit DDR2 / 3 and other interfaces.

[0037] In order to enable the system provided in the embodiment of the present application to implement the PRP mode, the embodiment of the present application may also provide an optical module chip 5, which is connected to the processor chip 1 via a fourth communication link; the optical module chip 5 is used to realize the conversion of photoelectric signals; the optical module chip includes at least two optical port network interfaces.

[0038] Furthermore, the optoelectronic chip may also be a domestic chip. For example, in one implementation, the optical module chip provided by the embodiment of the present application includes a HAT8545MD-D002SE chip.

[0039] Through the configuration of the above-mentioned chip, the system provided in the embodiment of the present application can realize multiple modes. For example, the network transceiver mode includes a dual network card mode and / or a PRP plus network card mode.

[0040] It is understandable that the system provided in the embodiment of the present application can adopt a ceramic sealed high reliability device design to meet the requirements of use in harsh environments of special industries. It adopts a domestically produced device design to achieve complete autonomy and control. It adopts domestically produced chips to achieve network communication redundancy design.

[0041] The system provided in the embodiment of the present application is described in detail below by taking the setting of two-port physical layer chips as an example.

[0042] The system provided in the embodiment of the present application may be composed of the following seven parts:

[0043] 1. LS2K1000J (processor) implements the sending and receiving processing of network signals and determines the network sending and receiving mode.

[0044] 2. SMQ7K325T-FFG900 (FPGA) realizes the alignment and forwarding of network signals and configures the network transceiver mode.

[0045] 3. JEM88E1111 HV (PHY chip) realizes the conversion of network signals between digital signals and analog signals.

[0046] 4. XECJLT1606-A (transformer chip) realizes signal level coupling, enhances signal, increases transmission distance and improves anti-interference ability.

[0047] 5. HAT8545MD-D002SE (optical module) realizes the conversion of photoelectric signals.

[0048] 6. The network interface (RJ45) is an electrical network.

[0049] 7. The fiber optic interface is an optical port network.

[0050] The network redundant communication system has two communication modes: dual network card mode and PRP+network card mode (hereinafter referred to as PRP mode).

[0051] Dual network card mode: In the process of network signal output, the two network signals of LS2K1000J are transmitted to SMQ7K325T-FFG900 through RGM II; SMQ7K325T-FFG900 is equipped with two JEM88E1111 HV chips to align and send the network signals; the JEM88E1111 HV chip performs digital-to-analog conversion on the signals, and then the XECJLT1606-A chip performs level coupling on the signals and outputs them from the network interface. The process of network signal input is the reverse process of the above process.

[0052] PRP mode: Network signal output process (network interface 2 is invalid in PRP mode), LS2K1000J two network signals are transmitted to SMQ7K325T-FFG900 through RGM II; the network 1 signal is processed in the same way as the dual network card mode, and the network 2 signal is configured by the PRP core in SMQ7K325T-FFG900 and transmitted to the HAT8545MD-D002SE module, and the HAT8545MD-D002SE module converts the optical signal and finally outputs it from the optical fiber interface. The network signal input process is the reverse process of the above process.

[0053] In short, the network redundant communication system provided by this application can adopt the design of domestically produced devices for each chip to achieve complete autonomy and control. When in multi-NIC mode, each network can use the same IP address. When one of the networks fails, the other network can continue to undertake the communication task. When in PRP mode, it has an electrical port communication network and two optical port networks. The electrical port and the optical port are independent of each other and can be configured with IP separately. When the optical port sends information, if one of the optical ports fails, the other optical port can ensure that the data is not lost during the transmission process and continue to undertake the communication task. The free switching between dual network card mode and PRP mode can meet the use requirements of more complex and harsh environments. Network redundancy design for special industries can also be implemented.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] It can be known from the description of the above implementation methods that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application or certain parts of the embodiments.

[0056] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A network redundant communication system, characterized in that: include: A processor chip, the processor chip is used to implement the transceiver processing of network signals and determine the network transceiver mode; An FPGA chip, wherein the FPGA chip is connected to the processor chip via a target number of first communication links; the FPGA chip is used to realize alignment and forwarding of network signals and to configure a network transceiver mode; A plurality of port physical layer chips, the number of which is the same as the number of the first communication links; each of the port physical layer chips is connected to the FPGA chip via a second communication link; the port physical layer chip is used to realize the conversion of network signals between digital signals and analog signals; A transformer chip, a plurality of port physical layer chips are connected to the transformer chip through the target number of third communication links; the transformer chip is used for signal level coupling; the transformer chip includes the target number of electrical port network interfaces; An optical module chip, wherein the optical module chip is connected to the processor chip via a fourth communication link; the optical module chip is used to realize the conversion of photoelectric signals; the optical module chip includes at least two optical port network interfaces; The network transceiver mode includes a dual network card mode and a PRP plus network card mode. In the PRP plus network card mode, one network signal is input or output by one of the electrical port network interfaces, and another network signal is input or output by at least two of the optical port network interfaces.

2. The network redundant communication system according to claim 1, characterized in that: The first communication link and the second communication link both include RGMII communication links.

3. The network redundant communication system according to claim 1, characterized in that: The third communication link includes an MDI communication link.

4. The network redundant communication system according to claim 1, characterized in that: The processor chip includes a LS2K1000J chip.

5. The network redundant communication system according to claim 1, characterized in that: The FPGA chip includes a SMQ7K325T-FFG900 chip.

6. The network redundant communication system according to claim 1, characterized in that: The port physical layer chip includes a JEM88E1111HV chip.

7. The network redundant communication system according to claim 1, characterized in that: The transformer chip includes XECJLT1606-A.

8. The network redundant communication system according to claim 1, characterized in that: The optical module chip includes a HAT8545MD-D002SE chip.

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