CN112865861A - Optical network fault processing device, optical module and method - Google Patents
Optical network fault processing device, optical module and method Download PDFInfo
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Abstract
The invention discloses an optical network fault processing device, an optical module and a method, wherein a sampling comparison module of the device acquires the output current state of the optical module; the micro control module determines the state of the optical module according to the state of the output current and acquires the light-emitting time when the optical module is in the light-emitting state; when the light emitting time exceeds the preset cycle time, generating a fault signal and sending the fault signal to external transmission equipment; when the light emitting time exceeds a preset multiple of a preset cycle time, generating a closing instruction and sending the closing instruction to a driving module; and the driving module generates a cut-off current signal according to the closing instruction so as to stop the light module from emitting light. According to the invention, the state of the optical module is determined according to the light emitting time of the optical module, the fault signal is generated to passively close the optical module when the light emitting time exceeds the preset period time, and the closing instruction is generated to actively close the optical module when the light emitting time exceeds the preset multiple of the preset period time, so that the optical module is closed in the fault state.
Description
Technical Field
The present invention relates to the field of optical network transmission technologies, and in particular, to an optical network fault processing apparatus, an optical module, and a method.
Background
At present, with the rapid development of Passive Optical Networks (PONs), Passive Optical Networks (PONs) have become important access Network technologies with the advantages of high bandwidth, large capacity, long transmission distance, low cost, good service transparency, and the like, and the technologies are used in large scale. Because the passive Optical Network can only send data to an Optical Line Terminal (OLT) by one Optical Network Unit (ONU) or Optical Network Terminal (ONT) at most at any time node, other Optical Network units ONU or Optical Network terminals ONT under the OLT cannot send data, that is, lasers in other Optical Network units ONU or Optical Network terminals ONT cannot emit light. If the laser of the ONU or the ONT is not authorized to emit light at this moment, the OLT cannot correctly receive data, the entire passive optical network under the OLT is in a disabled state, and all services of the ONU or the ONT of the user side are completely interrupted.
In the prior art, when an optical module fails, a maintainer needs to check the failure and replace the failed optical network unit ONU or optical network terminal ONT on site, and before the failed optical network unit ONU or optical network terminal ONT is not replaced, the entire passive optical network is in a breakdown state, and service quality and customer experience are also affected by long-time service interruption.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an optical network fault processing device, an optical module and a method, and aims to solve the technical problem that the whole passive optical network is in a breakdown state when the optical module fails in the prior art.
To achieve the above object, the present invention provides an optical network failure processing apparatus, the apparatus comprising: the system comprises a sampling comparison module, a micro control module and a driving module;
the sampling comparison module is respectively connected with an optical module and the micro control module, the micro control module is respectively connected with the sampling comparison module and the driving module, and the driving module is respectively connected with the micro control module and the optical module;
the sampling comparison module is used for detecting the optical module in the optical network and acquiring the output current state of the laser in the optical module;
the micro control module is used for determining the state of an optical module according to the state of the output current and acquiring the light emitting time of the laser when the laser is in a light emitting state;
the micro control module is further used for generating a fault signal when the light emitting time exceeds a preset period time, and sending the fault signal to external transmission equipment;
the micro control module is further used for generating a closing instruction when the light emitting time exceeds a preset multiple of the preset cycle time, and sending the closing instruction to the driving module;
and the driving module is used for generating a cut-off current signal according to the closing instruction and sending the cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
Optionally, the sampling comparison module comprises: a sampling sub-module and a comparison sub-module:
the sampling submodule is respectively connected with the optical module and the comparison submodule, and the comparison submodule is respectively connected with the sampling submodule and the micro control module;
the sampling submodule is used for acquiring the output current value of the laser in the optical module;
the comparison submodule is used for comparing the output current value with a preset current value to obtain a current comparison result;
and the micro control module is also used for determining the output current state of the laser in the optical module according to the current comparison result.
Optionally, the sampling sub-module is further configured to obtain the light emitting power of the laser;
and the sampling submodule is also used for acquiring the output current value of the laser by searching a preset relation table according to the luminous power.
Optionally, the micro control module is further configured to obtain a timing unit time;
the micro control module is further configured to detect the light emitting state every other timing unit time, and when the light emitting state is detected to be cut off, obtain the number of unit times of the timing unit time;
and the micro-control module is also used for acquiring the light emitting time of the laser according to the timing unit time and the unit time number.
Optionally, the apparatus further comprises: an electrical interface module;
the electric interface module is respectively connected with the micro control module, the external transmission equipment and the driving module;
the micro control module is further used for generating a fault signal when the light emitting time exceeds a preset period time, and sending the fault signal to the electrical interface module;
and the electrical interface module is used for sending the fault signal to the external transmission equipment so as to enable the external transmission equipment to close the optical module according to the fault signal.
Optionally, the apparatus further comprises: a filtering and shaping module;
the filter shaping module is respectively connected with the driving module and the optical module;
the filtering and shaping module is used for receiving the cut-off current signal, filtering the cut-off current signal to obtain a filtered cut-off current signal, and sending the filtered cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
Optionally, the electrical interface module is further configured to acquire a differential data signal, and generate an enable control signal when receiving the differential data signal;
the electrical interface module is further used for sending the differential data signal and the enabling control signal to the driving module;
the driving module is further configured to perform level conversion on the received differential data signal to obtain a current signal and send the current signal to the optical module when receiving the enable control signal, so that the optical module performs data transmission.
Optionally, the filtering and shaping module is further configured to receive the current signal, filter the current signal to obtain a filtered current signal, and send the filtered current signal to the optical module, so that the optical module performs data transmission.
In addition, in order to achieve the above object, the present invention further provides an optical module, which includes the above optical network fault processing apparatus.
In addition, to achieve the above object, the present invention provides a method for processing an optical network fault, including:
the sampling comparison module detects the optical module in the optical network to acquire the output current state of the laser in the optical module;
the micro control module is used for determining the state of an optical module according to the state of the output current and acquiring the light emitting time of the laser when the laser is in a light emitting state;
the micro control module is further used for generating a fault signal when the light emitting time exceeds a preset period time, and sending the fault signal to external transmission equipment;
the micro control module is further used for generating a closing instruction when the light emitting time exceeds a preset multiple of the preset cycle time, and sending the closing instruction to the driving module;
and the driving module is used for generating a cut-off current signal according to the closing instruction and sending the cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
The invention provides an optical network fault processing device, an optical module and a method, wherein a sampling comparison module of the device detects the optical module in an optical network to obtain the output current state of a laser in the optical module; the micro control module determines the state of the optical module according to the state of the output current and acquires the light emitting time of the laser when the laser is in a light emitting state; when the light emitting time exceeds the preset cycle time, the micro control module generates a fault signal and sends the fault signal to external transmission equipment; the micro control module generates a closing instruction when the light-emitting time exceeds a preset multiple of a preset cycle time, and sends the closing instruction to the driving module; the driving module generates a cut-off current signal according to the closing instruction and sends the cut-off current signal to the optical module so that the optical module stops data transmission. According to the invention, the state of the optical module is determined according to the light emitting time of the optical module, the fault signal is generated to passively close the optical module when the light emitting time exceeds the preset period time, and the closing instruction is generated to actively close the optical module when the light emitting time exceeds the preset multiple of the preset period time, so that the optical module is closed in the fault state.
Drawings
Fig. 1 is a block diagram of a first embodiment of an optical network fault handling apparatus according to the present invention;
fig. 2 is a block diagram of a second embodiment of an optical network fault handling apparatus according to the present invention;
fig. 3 is a flowchart illustrating a first embodiment of a method for processing an optical network fault according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a block diagram of a first embodiment of an optical network fault handling apparatus according to the present invention, where the optical network fault handling apparatus includes: a sample comparison module 10, a micro control module 20 and a driving module 30.
The sampling comparison module 10 is connected to an optical module and the micro control module 20, respectively.
It should be noted that the sampling comparison module 10 is a module for detecting a laser output current state of the optical module and comparing the detected output current with a preset current to determine the output current state. The optical module refers to an optical network unit ONU or an optical network terminal ONT of a user side. The optical module comprises the laser, and the data transmission state of the optical module can be determined through the light-emitting state of the laser. When the optical module transmits data with the optical line terminal OLT at the local side, the main current is used for data transmission between the optical module and the optical line terminal OLT at the local side through the front end, and a small part of the current is lost through the rear end. In the present invention, the optical module may include an optical network fault processing apparatus, and of course, the optical module further has a data transmission function with the optical line terminal OLT. The embodiment can determine the state of the laser through detecting the rear-end loss current, so as to determine the data transmission state of the optical module. The micro control module 20 is a module for controlling the light module to be turned off. The micro control module 20 may actively turn off the optical module when the optical module is in an abnormal state.
In a specific implementation, the sampling comparison module detects a laser in the optical module in the optical network, compares a specific value of the detected output current state with a preset current value, determines that the output current state of the laser is a high level state when the current value of the output current state is greater than the preset current value, and sends the output current state to the micro control module 20 through a high level electrical signal.
The micro control module 20 is connected to the sampling comparison module 10 and the driving module 30, respectively.
It should be noted that the driving module 30 is a module for turning on and off the optical module. The driving module 30 may start the optical module when receiving the external driving instruction, so that the optical module performs data transmission with the optical line terminal OLT of the central office. When receiving the closing instruction of the micro control module 20, the driving module 30 may close the optical module, and stop the optical module and the optical line terminal OLT at the central office end from performing data transmission; of course, the driving module 30 may also close the optical module according to an external close command, and stop the optical module and the optical line terminal OLT at the central office end from performing data transmission.
In a specific implementation, when receiving the output current state sent by the sampling and comparing module 10, the micro control module 20 determines the data transmission state of the optical module by determining the light emitting state of the laser according to the received output current state. And when the output current state is a high level state, determining that the laser is in a light-emitting state. The micro control module 20 starts an internal timer to time the laser in the light emitting state when the laser is in the light emitting state, and can send a fault signal to the external device to turn off the light module from the external device when the light emitting time exceeds a preset period. Under the condition that the external device does not turn off the optical module, the micro control module 20 continues timing, and when the light emitting time exceeds a preset multiple of a preset period, the micro control module 20 defaults that the external device cannot turn off the optical module, generates a turn-off instruction, and sends the turn-off instruction to the driving module 30, so as to turn off the optical module. The preset period is a time period for data transmission between the optical module and the optical line terminal OLT of the local side, and can be set through the external device. The preset multiple may be two times, or other multiples may be specifically set by the external device.
The driving module 30 is connected to the micro control module 20 and the optical module, respectively.
It should be noted that, in this embodiment, the sampling comparison module 10 is configured to detect the optical module in the optical network, compare an output current value with a preset current value, and further obtain an output current state of the optical module; the micro control module 20 determines the state of the laser according to the output current state, and starts an internal timer to obtain the light emitting time of the laser when the laser is in the light emitting state; when the light emitting time exceeds a preset period time, the micro control module 20 generates a fault signal and sends the fault signal to an external transmission device; when the light emitting time exceeds a preset multiple of the preset cycle time, the micro control module 20 generates a closing instruction and sends the closing instruction to the driving module 30; the driving module 30 generates a cut-off current signal according to the close instruction, and sends the cut-off current signal to the optical module, so that the optical module stops data transmission.
The embodiment provides an optical network fault processing device, a sampling comparison module 10 of the device detects an optical module in an optical network, and obtains an output current state of a laser in the optical module; the micro control module 20 determines the state of the optical module according to the state of the output current, and acquires the light emitting time of the laser when the laser is in the light emitting state; when the light emitting time exceeds the preset cycle time, the micro control module 20 generates a fault signal and sends the fault signal to an external transmission device; when the light emitting time exceeds a preset multiple of a preset cycle time, the micro control module 20 generates a closing instruction and sends the closing instruction to the driving module 30; the driving module 30 generates a cut-off current signal according to the close command, and transmits the cut-off current signal to the optical module, so that the optical module stops data transmission. According to the invention, the state of the optical module is determined according to the light emitting time of the optical module, the fault signal is generated to passively close the optical module when the light emitting time exceeds the preset period time, and the closing instruction is generated to actively close the optical module when the light emitting time exceeds the preset multiple of the preset period time, so that the optical module is closed in the fault state.
Referring to fig. 2, fig. 2 is a block diagram of a second embodiment of the optical network fault handling apparatus according to the present invention, and the second embodiment of the optical network fault handling apparatus according to the present invention is provided.
In a second embodiment, the sample comparison module 10 includes: a sampling sub-module 101 and a comparison sub-module 102.
The sampling submodule 101 is connected to the optical module and the comparison submodule 102, and the comparison submodule 102 is connected to the sampling submodule 101 and the micro control module 20.
The sampling submodule 101 is a module for acquiring an output current value at the rear end of the laser. The comparison submodule 102 is a module for comparing the acquired output current value with a preset current value. The comparison submodule 102 may generate a corresponding high level signal or low level signal according to the comparison result, and send the generated high level signal or low level signal to the micro control module 20.
In this embodiment, the sampling sub-module 101 is further configured to obtain the light emitting power of the laser.
The light emission power refers to the degree of light emission in the current state of the laser. The light emitting power of the laser is higher when the optical module is in a data transmission state than when the optical module is in a static state. The light emission power is positively correlated with the output current state of the laser, and the larger the light emission power is, the larger the output current value of the laser is.
In a specific implementation, the sampling sub-module 101 collects the light emitting power of the laser, and when the light emitting power of the laser is collected, the output current value of the laser may be obtained by searching a preset relationship table between the light emitting power and the output current value according to the light emitting power.
In this embodiment, the micro control module 20 is further configured to obtain a timing unit time.
It should be noted that the micro control module 20 may include a timing device such as a crystal oscillator, and the timing unit time is a unit time of one cycle measured by the timing device such as the crystal oscillator, for example, the timing unit time of a part of the crystal oscillator is 50ms, but it is needless to say that other timers and timing unit times corresponding to the timers may be used. The micro control module 20 detects the light emitting state every other timing unit time, and obtains the unit time number of the timing unit time when detecting that the light emitting state is cut off. The micro control module 20 can obtain the light emitting time of the laser according to the timing unit time and the unit time number.
In this embodiment, the optical network fault processing apparatus further includes: an electrical interface module 40;
the electrical interface module 40 is connected to the micro control module 20, the external transmission device, and the driving module 30.
The electrical interface module 40 is a module for connecting an external device to the optical network failure processing apparatus. The external device may send an enable control signal to the driving module 30 through the electrical interface module 40 to control the optical module to perform data transmission, or send a close instruction to the driving module 30 through the electrical interface module 40 to control the optical module to stop performing data transmission. The micro control module 20 may send a fault instruction to the external device through the electrical interface module 40, so that the external device turns off the optical module.
In a specific implementation, the micro control module 20 generates a fault signal when the light emitting time exceeds a preset period time, and sends the fault signal to the electrical interface module 40; the electrical interface module 40 sends the fault signal to the external transmission device, so that the external transmission device generates a closing instruction according to the fault signal, and sends the closing instruction to the driving module 30; when receiving the closing instruction, the driving module 30 generates an off-current signal, and closes the optical module according to the off-current signal. The electrical interface module 40 may receive the fault signal using the transmission strength indication interface.
In this embodiment, the optical network fault processing apparatus further includes: a filter shaping module 50;
wherein, the filter shaping module 50 is connected to the driving module 30 and the optical module respectively.
The filter shaping module 50 is a module for processing the off-current signal. The processed off-current signal enables the optical module to transmit the current signal of data in an optimal state. In a specific implementation process, when receiving a closing instruction, the driving module 30 generates a cut-off current signal and sends the cut-off current signal to the filtering and shaping module 50; when receiving the cut-off current signal, the filter shaping module 50 filters the cut-off current signal to obtain a filtered cut-off current signal, and sends the filtered cut-off current signal to the optical module, so that the optical module stops data transmission.
In this embodiment, the electrical interface module 40 is further configured to acquire a differential data signal and generate an enable control signal when receiving the differential data signal.
The differential data signal is a start signal for data transmission between the optical module and the optical line terminal OLT at the central office. The enable control signal is a control signal that controls the start of the optical module. In specific implementation, the external device sends the differential data signal to the electrical interface module 40, and the electrical interface module 40 generates an enable control signal according to the received differential data signal, and sends the differential data signal and the enable control signal to the driving module 30; when receiving the enable control signal, the driving module 30 performs level conversion on the received differential data signal to obtain a current signal, and sends the current signal to the optical module, so that the optical module starts data transmission. In this embodiment, the filter shaping module 50 is further configured to receive the current signal, filter the current signal to obtain a filtered current signal, and send the filtered current signal to the optical module, so that the optical module starts data transmission.
It should be understood that the filtered current signal refers to a filtered driving current signal, which is a signal for driving the optical module to perform data transmission. When receiving the enable control signal, the driving module 30 generates a driving current signal and sends the driving current signal to the filter shaping module 50; when receiving the driving current signal, the filter shaping module 50 filters the driving current signal to obtain a filtered driving current signal, and sends the filtered driving current signal to the optical module, so that the optical module starts data transmission.
The embodiment provides an optical network fault processing device, a sampling comparison module 10 of the device detects an optical module in an optical network, and obtains an output current state of a laser in the optical module; the micro control module 20 determines the state of the optical module according to the state of the output current, and acquires the light emitting time of the laser when the laser is in the light emitting state; when the light emitting time exceeds the preset cycle time, the micro control module 20 generates a fault signal and sends the fault signal to an external transmission device; when the light emitting time exceeds a preset multiple of a preset cycle time, the micro control module 20 generates a closing instruction and sends the closing instruction to the driving module 30; the driving module 30 generates a cut-off current signal according to the close command, and transmits the cut-off current signal to the optical module, so that the optical module stops data transmission. According to the invention, the state of the optical module is determined according to the light emitting time of the optical module, the fault signal is generated to passively close the optical module when the light emitting time exceeds the preset period time, and the closing instruction is generated to actively close the optical module when the light emitting time exceeds the preset multiple of the preset period time, so that the optical module is closed in the fault state.
In addition, the present invention further provides an optical module, where the optical module includes the above optical network fault processing apparatus, which is not described herein again.
In addition, referring to fig. 3, fig. 3 is a schematic flow chart of a first embodiment of the optical network fault processing method according to the present invention, and the present invention further provides an optical network fault processing method, where the method includes:
step S10: and the sampling comparison module detects the optical module in the optical network and acquires the output current state of the laser in the optical module.
The sampling comparison module is a module for detecting the output current state of the laser in the optical module and comparing the detected output current value with a preset current value to determine the output current state. When the optical module transmits data with the optical line terminal OLT at the local side, the main current is used for data transmission between the optical module and the optical line terminal OLT at the local side through the front end, and a small part of the current is lost through the rear end. The invention can determine the state of the optical module by detecting the output current of the rear end. The micro-control module is used for controlling the light module to be closed.
In a specific implementation, the sampling comparison module detects a laser in the optical module in the optical network, compares a specific value of the detected output current state with a preset current value, determines that the output current state of the optical module is a high-level state when the current value of the output current state is greater than the preset current value, and sends the output current state to the micro control module through a high-level electric signal.
Step S20: and the micro control module is used for determining the state of an optical module according to the output current state and acquiring the light emitting time of the laser when the laser is in a light emitting state.
It should be noted that, when the micro control module receives the output current state sent by the sampling comparison module, the data transmission state and the data transmission state of the optical module are determined according to the received output current state. And when the output current state is a high level state, determining that the optical module is in a data transmission state. And when the optical module is in a light-emitting state, the micro control module starts an internal timer to time the time of the laser in the light-emitting state, and acquires the light-emitting time of the laser.
Step S30: and the micro control module generates a fault signal when the light emitting time exceeds a preset period time, and sends the fault signal to external transmission equipment.
It should be noted that the preset period is a time period for the optical module to perform data transmission with the optical line terminal OLT at the office end, and may be set by an external device. In specific implementation, when the laser is in a light emitting state, the micro control module starts the internal timer to time the time when the laser is in the light emitting state, compares the light emitting time of the laser with a preset period time, and when the light emitting time exceeds the preset period time, can send a fault signal to external equipment to shut down the light module from the external equipment.
Step S40: and the micro control module generates a closing instruction when the light-emitting time exceeds a preset multiple of the preset cycle time, and sends the closing instruction to the driving module.
The preset multiple is a preset multiple of the light emitting period of the laser, that is, a multiple of the data transmission period of the optical module. The preset multiple may be two times, or other multiples may be specifically set by the external device. In specific implementation, when the external device does not turn off the light module, the micro control module continues to count time, and when the light emitting time exceeds a preset multiple of a preset period, the micro control unit defaults that the external device cannot turn off the light module, generates a turn-off instruction, and sends the turn-off instruction to the driving module, so as to turn off the light emitting state of the light module.
Step S50: and the driving module is used for generating a cut-off current signal according to the closing instruction and sending the cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
The off-current signal is a current signal for turning off the data transmission state of the optical module. In specific implementation, when receiving a closing instruction, a driving module analyzes the closing instruction, generates a cut-off current signal according to an analysis result, and sends the cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
The embodiment provides a method for processing optical network faults, which detects a laser of an optical module in an optical network through a sampling comparison module to obtain an output current state of the laser; the micro control module determines the state of the optical module according to the state of the output current and acquires the light emitting time of the optical module when the laser is in a light emitting state; when the light emitting time exceeds the preset cycle time, the micro control module generates a fault signal and sends the fault signal to external transmission equipment; the micro control module generates a closing instruction when the light emitting time exceeds a preset multiple of a preset period time, and sends the closing instruction to the driving module; the driving module generates a cut-off current signal according to the closing instruction and sends the cut-off current signal to the optical module so that the optical module stops data transmission. In the embodiment, the state of the optical module is determined according to the light emitting time of the laser, the fault signal is generated to passively close the optical module when the light emitting time exceeds the preset period time, and the closing instruction is generated to actively close the optical module when the light emitting time exceeds the preset multiple of the preset period time, so that the optical module is closed in the fault state.
In an embodiment, in the optical network fault handling method, the step S10 further includes: the sampling submodule is used for acquiring the output current value of the laser in the optical module; the comparison submodule is used for comparing the output current value with a preset current value to obtain a current comparison result; and the micro control module is also used for determining the output current state of the laser in the optical module according to the current comparison result.
In an embodiment, in the optical network fault handling method, the step S10 further includes: the sampling submodule is also used for acquiring the luminous power of the laser; and the sampling submodule is also used for acquiring the output current value of the laser by searching a preset relation table according to the luminous power.
In an embodiment, in the optical network fault handling method, the step S20 further includes: the micro control module acquires timing unit time; the micro control module detects the light-emitting state every other timing unit time, and obtains the unit time number of the timing unit time when detecting that the light-emitting state is cut off; and the micro control module acquires the light emitting time of the laser according to the timing unit time and the unit time number.
In an embodiment, in the optical network fault handling method, the step S30 further includes: the micro control module is further used for generating a fault signal when the light emitting time exceeds a preset period time, and sending the fault signal to the electrical interface module; and the electrical interface module is used for sending the fault signal to the external transmission equipment so as to enable the external transmission equipment to close the optical module according to the fault signal.
In an embodiment, the method for processing an optical network fault further includes, after the step S50: and the filtering and shaping module receives the cut-off current signal, filters the cut-off current signal to obtain a filtered cut-off current signal, and sends the filtered cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
In an embodiment, the optical network fault handling method further includes, before the step S10: the electrical interface module acquires a differential data signal and generates an enabling control signal when receiving the differential data signal; the electrical interface module sends the differential data signal and the enable control signal to the driving module; correspondingly, when receiving the enable control signal, the driving module performs level conversion on the received differential data signal to obtain a current signal, and sends the current signal to the optical module, so that the optical module performs data transmission.
In an embodiment, the method for processing an optical network fault further includes, after the step S50: and the filtering and shaping module receives the current signal, filters the current signal to obtain a filtered current signal, and sends the filtered current signal to the optical module so as to enable the optical module to perform data transmission.
Other embodiments or specific implementation manners of the optical network fault processing method according to the present invention may refer to the above method embodiments, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An optical network fault handling apparatus, the apparatus comprising: the system comprises a sampling comparison module, a micro control module and a driving module;
the sampling comparison module is respectively connected with an optical module and the micro control module, the micro control module is respectively connected with the sampling comparison module and the driving module, and the driving module is respectively connected with the micro control module and the optical module;
the sampling comparison module is used for detecting the optical module in the optical network and acquiring the output current state of the laser in the optical module;
the micro control module is used for determining the state of an optical module according to the state of the output current and acquiring the light emitting time of the laser when the laser is in a light emitting state;
the micro control module is further used for generating a fault signal when the light emitting time exceeds a preset period time, and sending the fault signal to external transmission equipment;
the micro control module is further used for generating a closing instruction when the light emitting time exceeds a preset multiple of the preset cycle time, and sending the closing instruction to the driving module;
and the driving module is used for generating a cut-off current signal according to the closing instruction and sending the cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
2. The apparatus of claim 1, wherein the sample comparison module comprises: a sampling sub-module and a comparison sub-module:
the sampling submodule is respectively connected with the optical module and the comparison submodule, and the comparison submodule is respectively connected with the sampling submodule and the micro control module;
the sampling submodule is used for acquiring the output current value of the laser in the optical module;
the comparison submodule is used for comparing the output current value with a preset current value to obtain a current comparison result;
and the micro control module is also used for determining the output current state of the laser in the optical module according to the current comparison result.
3. The apparatus of claim 2, wherein the sampling sub-module is further configured to obtain a luminous power of the laser;
and the sampling submodule is also used for acquiring the output current value of the laser by searching a preset relation table according to the luminous power.
4. The apparatus of claim 3, wherein said micro control module is further configured to obtain a time unit;
the micro control module is further configured to detect the light emitting state every other timing unit time, and when the light emitting state is detected to be cut off, obtain the number of unit times of the timing unit time;
and the micro-control module is also used for acquiring the light emitting time of the laser according to the timing unit time and the unit time number.
5. The apparatus of claim 4, wherein the apparatus further comprises: an electrical interface module;
the electric interface module is respectively connected with the micro control module, the external transmission equipment and the driving module;
the micro control module is further used for generating a fault signal when the light emitting time exceeds a preset period time, and sending the fault signal to the electrical interface module;
and the electrical interface module is used for sending the fault signal to the external transmission equipment so as to enable the external transmission equipment to close the optical module according to the fault signal.
6. The apparatus of claim 5, wherein the apparatus further comprises: a filtering and shaping module;
the filter shaping module is respectively connected with the driving module and the optical module;
the filtering and shaping module is used for receiving the cut-off current signal, filtering the cut-off current signal to obtain a filtered cut-off current signal, and sending the filtered cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
7. The apparatus of claim 6, wherein the electrical interface module is further to obtain a differential data signal and generate an enable control signal upon receipt of the differential data signal;
the electrical interface module is further used for sending the differential data signal and the enabling control signal to the driving module;
the driving module is further configured to perform level conversion on the received differential data signal to obtain a current signal and send the current signal to the optical module when receiving the enable control signal, so that the optical module performs data transmission.
8. The apparatus of claim 7, wherein the filter shaping module is further configured to receive the current signal, filter the current signal to obtain a filtered current signal, and send the filtered current signal to the optical module, so that the optical module performs data transmission.
9. An optical module, characterized in that the optical module comprises the optical network fault handling apparatus according to any one of claims 1 to 8.
10. An optical network fault handling method based on the optical module of claim 9, the method comprising:
the sampling comparison module detects the optical module in the optical network to acquire the output current state of the laser in the optical module;
the micro control module is used for determining the state of an optical module according to the state of the output current and acquiring the light emitting time of the laser when the laser is in a light emitting state;
the micro control module is further used for generating a fault signal when the light emitting time exceeds a preset period time, and sending the fault signal to external transmission equipment;
the micro control module is further used for generating a closing instruction when the light emitting time exceeds a preset multiple of the preset cycle time, and sending the closing instruction to the driving module;
and the driving module is used for generating a cut-off current signal according to the closing instruction and sending the cut-off current signal to the optical module so as to enable the optical module to stop data transmission.
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