Optical communication system and control method thereof

Abstract

The invention discloses an optical communication system and a control method of the optical communication system, and relates to the technical field of optical communication, and the optical communication system comprises a plurality of main LPO optical modules, a plurality of standby LPO optical modules and a redundancy switching module, the redundancy switching module is connected with the plurality of main LPO optical modules and the plurality of standby LPO optical modules, and is configured to obtain a heartbeat signal of any main LPO optical module, and judge whether the main LPO optical module operates normally or not according to the heartbeat signal of the main LPO optical module; and if the main LPO optical module operates abnormally, respectively sending a switching signal to the main LPO optical module which operates abnormally and a standby LPO optical module which operates normally, so that the standby LPO optical module which operates normally replaces the main LPO optical module which operates abnormally. According to the invention, when the main LPO optical module operates abnormally, the standby LPO optical module can replace the main LPO optical module which operates abnormally through the redundancy switching module, so that the stability and reliability of the optical communication system are kept.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to an optical communication system and a control method of the optical communication system. Background Art

[0002] In current high-speed optical modules, DSP chips are usually introduced to process high-speed signals. Although DSP chips are very powerful, they also consume a lot of power, which can account for more than 50% of the total optical module power consumption. In addition, they are costly and their delivery time is greatly restricted.

[0003] In the field of LPO (linear drive pluggable optics) optical modules, the DSP chip is removed through LPO technology, and its functions are integrated into the switch chip, leaving only the driver and transimpedance amplifier (TIA) chips. The performance of the TIA and driver chips used in LPO optical modules has also been improved, thereby achieving better linearity, reducing power consumption and latency.

[0004] However, some optical communication systems (such as the optical communication system formed by linking data center servers and switches) use multiple LPO optical modules, and some LPO optical modules may operate abnormally, thereby causing optical communication system operation failures and reducing the reliability of the optical communication system. Summary of the invention

[0005] The embodiments of the present invention provide an optical communication system and a control method for the optical communication system to solve the technical problem in the related art that there are a large number of LPO optical modules in the existing optical communication system, and individual LPO optical modules may operate abnormally, thereby causing the optical communication system to fail and reduce the reliability of the optical communication system.

[0006] In a first aspect, an optical communication system is provided, comprising: a plurality of main LPO optical modules, a plurality of backup LPO optical modules and a redundant switching module;

[0007] The redundant switching module is connected to the plurality of active LPO optical modules and the plurality of standby LPO optical modules, and is configured as follows:

[0008] Obtain a heartbeat signal of any active LPO optical module, and determine whether the active LPO optical module operates normally according to the heartbeat signal of the active LPO optical module;

[0009] If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally.

[0010] In some embodiments, if the main LPO optical module operates abnormally, sending a switching signal to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, respectively, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, includes:

[0011] Traverse the heartbeat signals of all standby LPO optical modules and determine a standby LPO optical module that is operating normally;

[0012] The normally operating standby LPO optical module is controlled to replace the abnormally operating main LPO optical module.

[0013] In some embodiments, if the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, and further includes:

[0014] The flag bit value of the flag register of the standby LPO optical module is changed to the main state value, and the flag variable of the flag register of the main LPO optical module is changed to the standby state value.

[0015] In some embodiments, if the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, and further includes:

[0016] The information that the main LPO optical module is operating abnormally is sent to the main control module of the optical communication system, so that the main control module controls the main LPO optical module to power off.

[0017] In some embodiments, the optical communication system further comprises:

[0018] Multiple acquisition modules are connected to the main control module, and one acquisition module is used to acquire the operating parameters of a corresponding main LPO optical module or a backup LPO optical module, and send the acquired operating parameters to the main control module.

[0019] In some embodiments, the operating parameters include at least voltage, current, output optical power, and input optical power.

[0020] In some embodiments, the optical communication system further comprises:

[0021] A plurality of temperature sensors are arranged at different positions of the optical communication system and connected to the main control module.

[0022] In some embodiments, the temperature sensor is a platinum resistance temperature sensor.

[0023] In a second aspect, a control method for an optical communication system is provided, comprising the following steps:

[0024] Obtain a heartbeat signal of any active LPO optical module, and determine whether the active LPO optical module operates normally according to the heartbeat signal of the active LPO optical module;

[0025] If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally.

[0026] In some embodiments, if the main LPO optical module operates abnormally, the step of sending a switching signal to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, respectively, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, includes:

[0027] Traverse the heartbeat signals of all standby LPO optical modules and determine a standby LPO optical module that is operating normally;

[0028] The normally operating standby LPO optical module is controlled to replace the abnormally operating main LPO optical module.

[0029] The beneficial effects brought about by the technical solution provided by the present invention include:

[0030] An embodiment of the present invention provides an optical communication system and a control method for the optical communication system. The optical communication system implements a redundant design of the optical communication system by introducing a redundant switching module and a plurality of spare LPO optical modules. When an abnormal operation occurs in a main LPO optical module, the spare LPO optical module can be replaced with the abnormal main LPO optical module through the redundant switching module, thereby maintaining the stability and reliability of the optical communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of the structure of an optical communication system provided by an embodiment of the present invention;

[0033] Figure 2Another structural schematic diagram of an optical communication system provided by an embodiment of the present invention;

[0034] Figure 3 A schematic flow chart of a control method for an optical communication system provided by an embodiment of the present invention;

[0035] Figure 4 The embodiment of the present invention provides Figure 3 Schematic diagram of the process of implementing step S20. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The embodiment of the present invention provides an optical communication system, which can solve the technical problem that there are a large number of LPO optical modules in the existing optical communication system, and some LPO optical modules may operate abnormally, thereby causing the optical communication system to fail and reducing the reliability of the optical communication system.

[0038] See also Figure 1 As shown, an embodiment of the present invention provides an optical communication system, comprising: a plurality of main LPO optical modules, a plurality of backup LPO optical modules and a redundant switching module, wherein the redundant switching module is connected to the plurality of main LPO optical modules and the plurality of backup LPO optical modules, specifically, each of the main LPO optical modules is connected to the redundant switching module via a main interface, and each of the backup LPO optical modules is connected to the redundant switching module via a backup interface. The redundant switching module is configured as follows:

[0039] The heartbeat signal of any active LPO optical module is obtained, and whether the active LPO optical module is operating normally is determined according to the heartbeat signal of the active LPO optical module. Specifically, a heartbeat packet timer is set inside the active LPO optical module, and a heartbeat signal is sent to the redundant switching module through the heartbeat packet timer. The heartbeat signal sent by each active LPO optical module has a certain regularity, and an abnormal heartbeat signal can be used to feedback that the corresponding active LPO optical module is operating abnormally.

[0040] If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally.

[0041] The optical communication system in the embodiment of the present invention realizes the redundant design of the optical communication system by introducing a redundant switching module and a plurality of spare LPO optical modules. When an abnormal operation occurs in the main LPO optical module, the spare LPO optical module can be used to replace the abnormal main LPO optical module through the redundant switching module, thereby maintaining the stability and reliability of the optical communication system.

[0042] As an optional implementation, in an embodiment of the invention, if the main LPO optical module operates abnormally, sending a switching signal to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, respectively, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, includes:

[0043] The heartbeat signals of all standby LPO optical modules are traversed to determine a standby LPO optical module that is operating normally.

[0044] The normally operating standby LPO optical module is controlled to replace the abnormally operating main LPO optical module.

[0045] Specifically, the standby LPO optical module will also set a heartbeat packet timer, and send a heartbeat signal to the redundant switching module through the heartbeat packet timer. The redundant switching module obtains the heartbeat signal of the first standby LPO optical module, and determines whether the first active LPO optical module is operating normally according to the heartbeat signal of the first active LPO optical module:

[0046] If the first active LPO optical module operates normally, the first standby LPO optical module is controlled to replace the abnormally operating active LPO optical module;

[0047] If the first active LPO optical module operates abnormally, the heartbeat signal of the next standby LPO optical module is obtained and judged again until the current active LPO optical module operates normally, and the current standby LPO optical module is controlled to replace the abnormal active LPO optical module.

[0048] As an optional implementation, in an embodiment of the invention, if the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, and further includes:

[0049] The flag bit value of the flag register of the standby LPO optical module is changed to the active state value, and the flag variable of the flag register of the active LPO optical module is changed to the standby state value. By updating the flag bit value of the flag register of the LPO optical module, the redundant switching module is facilitated to perform subsequent control management.

[0050] As an optional implementation, in an embodiment of the invention, if the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, and further includes:

[0051] The information that the main LPO optical module is operating abnormally is sent to the main control module of the optical communication system, so that the main control module controls the main LPO optical module to power off.

[0052] When any of the main LPO optical modules operates abnormally, the information about the abnormal operation of the main LPO optical module is sent to the main control module of the optical communication system through the redundant switching module. The main control module controls the main LPO optical module to power off according to the received information, and isolates the abnormal main LPO optical module from the remaining modules that operate normally, thereby improving the reliability of the optical communication system.

[0053] As an optional implementation, in an embodiment of the invention, see Figure 2 As shown, the optical communication system further includes: multiple acquisition modules, multiple acquisition modules are connected to the main control module, one of the acquisition modules is used to collect the operating parameters of a corresponding main LPO optical module or a backup LPO optical module, and send the collected operating parameters to the main control module.

[0054] The main control module can timely detect potential failure risks by real-time monitoring of the operating parameters of each spare LPO optical module, thereby improving the reliability of the optical communication system and reducing the maintenance cost and downtime of the optical communication system. Furthermore, the operating parameters include at least voltage, current, output optical power and input optical power.

[0055] As an optional implementation, in an embodiment of the invention, see Figure 2 As shown, the optical communication system further includes: a plurality of temperature sensors, which are arranged at different positions of the optical communication system and connected to the main control module. Optionally, the temperature sensor is a platinum resistance temperature sensor, the resistance of which changes with temperature, and has the advantages of high precision, vibration resistance, good stability, and high pressure resistance.

[0056] The embodiment of the present invention adds a temperature monitoring and alarm mechanism inside each device of the optical communication system to ensure that it can not only effectively monitor the temperature of the system equipment, but also issue an alarm in time when the temperature is abnormal, so as to ensure the safe and stable operation of the system equipment. A plurality of the temperature sensors are distributed in various key parts of each device of the optical communication system so as to fully capture the temperature distribution inside the system equipment. In terms of the alarm mechanism, the alarm conditions can be set according to the actual operation conditions and temperature thresholds of each device. Once the temperature data exceeds the set threshold, the alarm mechanism should be activated immediately to remind the operator through various methods such as sound and light alarms. In addition, the alarm mechanism can also have a recording function, which can automatically record the time, temperature data and other information of each alarm for subsequent analysis and processing.

[0057] See also Figure 3 As shown, an embodiment of the present invention further provides a control method for an optical communication system, comprising the following steps:

[0058] Step S10, obtaining the heartbeat signal of any active LPO optical module, and judging whether the active LPO optical module is operating normally according to the heartbeat signal of the active LPO optical module. Specifically, a heartbeat packet timer is set inside the active LPO optical module, and a heartbeat signal is sent to the redundant switching module through the heartbeat packet timer. The heartbeat signal sent by each active LPO optical module has a certain regularity, and an abnormal heartbeat signal can be used to feedback that the corresponding active LPO optical module is operating abnormally.

[0059] Step S20: If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally.

[0060] The control method of the optical communication system in the embodiment of the present invention realizes the redundant design of the optical communication system through a redundant switching module and a plurality of spare LPO optical modules. When an abnormal operation occurs in the main LPO optical module, the spare LPO optical module can replace the abnormal main LPO optical module through the redundant switching module, thereby maintaining the stability and reliability of the optical communication system.

[0061] As an optional implementation, in an embodiment of the invention, see Figure 4 As shown, if the main LPO optical module operates abnormally, the step of sending a switching signal to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, respectively, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, includes:

[0062] Step S201, traverse the heartbeat signals of all standby LPO optical modules to determine a standby LPO optical module that is operating normally.

[0063] Step S202: Control the normally operating standby LPO optical module to replace the abnormally operating main LPO optical module.

[0064] Specifically, the heartbeat signal of the first standby LPO optical module is obtained, and whether the first main LPO optical module is operating normally is determined according to the heartbeat signal of the first main LPO optical module:

[0065] If the first active LPO optical module operates normally, the first standby LPO optical module is controlled to replace the abnormally operating active LPO optical module;

[0066] If the first active LPO optical module operates abnormally, the heartbeat signal of the next standby LPO optical module is obtained and judged again until the current active LPO optical module operates normally, and the current standby LPO optical module is controlled to replace the abnormal active LPO optical module.

[0067] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0068] It should be noted that, in the present invention, relational terms such as "first" and "second" 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 system 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 system 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 system device including the elements.

[0069] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. An optical communication system, characterized in that: include: Multiple active LPO optical modules, multiple standby LPO optical modules and redundant switching modules; The redundant switching module is connected to the plurality of active LPO optical modules and the plurality of standby LPO optical modules, and is configured as follows: Obtain a heartbeat signal of any active LPO optical module, and determine whether the active LPO optical module operates normally according to the heartbeat signal of the active LPO optical module; If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally.

2. The optical communication system according to claim 1, characterized in that: If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, including: Traverse the heartbeat signals of all standby LPO optical modules and determine a standby LPO optical module that is operating normally; The normally operating standby LPO optical module is controlled to replace the abnormally operating main LPO optical module.

3. The optical communication system according to claim 1, characterized in that: If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, and further includes: The flag bit value of the flag register of the standby LPO optical module is changed to the main state value, and the flag variable of the flag register of the main LPO optical module is changed to the standby state value.

4. The optical communication system according to claim 1, characterized in that: If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, and further includes: The information that the main LPO optical module is operating abnormally is sent to the main control module of the optical communication system, so that the main control module controls the main LPO optical module to power off.

5. The optical communication system according to claim 4, characterized in that: Also includes: Multiple acquisition modules are connected to the main control module, and one acquisition module is used to acquire the operating parameters of a corresponding main LPO optical module or a backup LPO optical module, and send the acquired operating parameters to the main control module.

6. The optical communication system according to claim 5, characterized in that: The operating parameters include at least voltage, current, output optical power and input optical power.

7. The optical communication system according to claim 4, characterized in that: Also includes: A plurality of temperature sensors are arranged at different positions of the optical communication system and connected to the main control module.

8. The optical communication system according to claim 7, characterized in that: The temperature sensor is a platinum resistance temperature sensor.

9. A control method for an optical communication system according to claim 1, characterized in that: The following steps are involved: Obtain a heartbeat signal of any active LPO optical module, and determine whether the active LPO optical module operates normally according to the heartbeat signal of the active LPO optical module; If the main LPO optical module operates abnormally, a switching signal is sent to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally.

10. The control method of the optical communication system according to claim 9, characterized in that: If the main LPO optical module operates abnormally, the step of sending a switching signal to the main LPO optical module that operates abnormally and a backup LPO optical module that operates normally, respectively, so that the backup LPO optical module that operates normally replaces the main LPO optical module that operates abnormally, includes: Traverse the heartbeat signals of all standby LPO optical modules and determine a standby LPO optical module that is operating normally; Control the standby LPO optical module that is operating normally to replace the main LPO optical module that is operating abnormally.

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