CN113660557A - Top-adjusting information monitoring device and method - Google Patents
Top-adjusting information monitoring device and method Download PDFInfo
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- H—ELECTRICITY
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- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- H04Q2011/0045—Synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
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- H04Q2011/0079—Operation or maintenance aspects
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Abstract
A tune-top information monitoring apparatus, comprising: a plurality of communication links, each communication link comprising a DU and an AAU; a plurality of wavelength division units, each wavelength division unit optically connected between one DU and one AAU, each wavelength division unit for separating an OAM signal from each communication link; the plurality of amplifying units are correspondingly and electrically connected with each wave division unit, and each amplifying unit is used for amplifying the OAM signal separated by each wave division unit; and the processing unit is electrically connected with each amplification unit and used for sampling each amplified OAM signal and analyzing according to a sampling result to obtain OAM information corresponding to each communication link. The embodiment of the application also provides a method for monitoring the set top information. According to the device and the method for monitoring the top-tuning information, the top-tuning information is separated through the wave separator, the top-tuning information of a plurality of optical modules can be acquired in real time, and the device and the method are not limited by the positions of the optical modules.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to a device and a method for monitoring top-adjusting information.
Background
With the coming of the 5G era, each large operator is preoccupied with the market, the construction of the 5G network is greatly promoted, and various networking modes for 5G forward are continuously optimized and evolved. In order to master relevant information of an Active Antenna Unit (AAU) and a Distributed Unit (DU) side module in real time, an operator is convenient to overhaul and maintain a 5G network, and low-speed communication is performed on information such as optical module power, temperature, current, voltage, wavelength, speed, alarm and the like. An Operation, Maintenance and Administration (OAM) technique uses a pilot signal to transmit these pieces of control information in an optical signal. And the optical modules on the two sides can perform information modulation on the vertex-modulated signals according to the management and control information and send the vertex-modulated signals to the opposite terminal.
In the existing technical scheme, the optical module obtains the set-top signal, but if the optical module performs IIC communication with the host, the task priority of the communication with the host is the highest, and if a data packet of the set-top signal arrives at the moment, the optical module may lose the data packet of the set-top signal. Namely, the IIC communication of the optical module and the host computer and the receiving of the tuning signal have conflict. The existing solutions to this problem are generally: when the optical module and the host carry out IIC communication, data received by the tuning top is stored in the buffer area, and when the processor is idle, the data in the buffer area is analyzed, but the method cannot acquire tuning top information in real time.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a device and a method for monitoring tuning information, which can obtain tuning information of an optical module in real time.
An embodiment of the present invention provides a set-top information monitoring apparatus, including a plurality of communication links, each communication link including a DU and an AAU, the set-top information monitoring apparatus further including: a plurality of wavelength division units, each wavelength division unit optically connected between one DU and one AAU, each wavelength division unit for separating an OAM signal from each communication link; the plurality of amplifying units are correspondingly and electrically connected with each wave division unit, and each amplifying unit is used for amplifying the OAM signal separated by each wave division unit; and the processing unit is electrically connected with each amplification unit and used for sampling each amplified OAM signal and analyzing according to a sampling result to obtain OAM information corresponding to each communication link.
In some embodiments, the processing Unit includes a Micro Controller Unit (MCU) including a plurality of Analog-to-Digital Converter (ADC) pins, and the MCU samples the amplified OAM signals through the plurality of ADC pins.
In some embodiments, the processing unit samples the plurality of OAM signals at a preset sampling period, which is synchronized with a clock of the plurality of OAM signals.
In some embodiments, when the MCU samples the amplified OAM signal through the ADC pin, the MCU reads a plurality of sampling values, and performs an averaging operation on the plurality of sampling values to obtain a high-low level decision threshold, the MCU further obtains a rising edge and a falling edge of the OAM signal according to the high-low level decision threshold, and converts the obtained rising edge and falling edge into binary data according to a decoding rule of the OAM signal, the MCU further compares the converted binary data with a frame header and a frame tail of the OAM signal, and frames the binary data when the frame header and the frame tail are determined to obtain frame data corresponding to the OAM signal, and the MCU is further configured to analyze the frame data to obtain OAM information corresponding to the OAM signal.
In some embodiments, the frame data includes a frame header, a check code, a data portion, and a frame tail, and the MCU is further configured to perform a check operation on the data portion to obtain a check value, compare the check value obtained by the operation with the check code, and store the frame data when the check value obtained by the operation is consistent with the check code.
In some embodiments, the MCU is configured to sequentially process each OAM signal according to a sampling order of each OAM signal to obtain frame data corresponding to each OAM signal.
Another embodiment of the present invention provides a method for monitoring information of a set top box, which is applied to a set top box information monitoring apparatus, wherein the set top box information monitoring apparatus includes a plurality of communication links, and the method for monitoring information of the set top box includes: separating the OAM signals from each communication link; amplifying each separated OAM signal; and sampling each OAM signal subjected to amplification processing, and analyzing according to a sampling result to obtain OAM information corresponding to each communication link.
In some embodiments, sampling each OAM signal that is amplified includes: and sampling the plurality of OAM signals subjected to amplification processing according to a preset sampling period, wherein the preset sampling period is synchronous with the clocks of the plurality of OAM signals.
In some embodiments, sampling each of the amplified OAM signals, and analyzing the OAM information corresponding to each communication link according to the sampling result includes: sampling the amplified OAM signal, and reading a plurality of sampling values; averaging a plurality of sampling values to obtain a high-low level decision threshold value, and acquiring a rising edge and a falling edge of the OAM signal according to the high-low level decision threshold value; converting the acquired rising edge and falling edge into binary data according to the decoding rule of the OAM signal; comparing the binary data obtained by conversion with a frame head and a frame tail of the OAM signal, and framing the binary data when the frame head and the frame tail are determined to obtain frame data corresponding to the OAM signal; and analyzing the frame data to obtain OAM information corresponding to the OAM signal.
In some embodiments, the frame data includes a frame header, a check code, a data portion, and a frame trailer, and the method for monitoring the tune-to-tune information further includes: carrying out check operation on the data part to obtain a check value, and comparing the check value obtained by operation with a check code; and when the check value obtained by the operation is consistent with the check code, saving the frame data.
Compared with the prior art, the device and the method for monitoring the top-tuning information can achieve the purpose of acquiring the top-tuning information of a plurality of communication links in real time, separate the top-tuning information through the wave splitter, avoid the problem that the communication between the optical module and the host and the receiving of the top-tuning signals of the optical module conflict, and solve the problem that the number and the position of the optical modules are limited and the top-tuning information of a plurality of optical modules cannot be acquired simultaneously.
Drawings
Fig. 1 is a functional block diagram of an embodiment of a tuning information monitoring apparatus according to the present invention.
Fig. 2 is a functional block diagram of another embodiment of the tuning information monitoring apparatus according to the present invention.
Fig. 3 is a flowchart illustrating steps of an embodiment of a method for monitoring tune-to-tune information according to the present invention.
Description of the main elements
AAU 20a、20b、20c
Amplifying units 40a, 40b, 40c
ADC pins ADC _1, ADC _2 and ADC _3
Set-top information monitoring device 100
Detailed Description
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Referring to fig. 1, an embodiment of the present invention provides a set top information monitoring apparatus 100, which can obtain OAM information of a plurality of communication links in real time.
The tuning information monitoring apparatus 100 includes a plurality of DUs (fig. 1 illustrates three DUs 10a, 10b, and 10c, but not limited to three, and may be more than three or less than three), a plurality of AAUs (fig. 1 illustrates three AAUs 20a, 20b, and 20c, but not limited to three, and may be more than three or less than three), a plurality of demultiplexing units (fig. 1 illustrates three demultiplexing units 30a, 30b, and 30c, but not limited to three, and may be more than three or less than three), a plurality of amplifying units (fig. 1 illustrates three amplifying units 40a, 40b, and 40c, but not limited to three, and may be more than three or less than three), and a processing unit 50.
The three DUs 10a, 10b, 10c and the three AAUs 20a, 20b, 20c form three communication links, and the information transmitted in each communication link generally includes two types of information, one is service information and the other is OAM information. Each of the wavelength division units 30a to 30c is optically connected between one DU and one AAU, for example, the wavelength division unit 30a is optically connected between DU 10a and AAU 20a, the wavelength division unit 30b is optically connected between DU 10b and AAU 20b, and the wavelength division unit 30c is optically connected between DU 10c and AAU 20 c. Each of the wavelength division units 30a to 30c is used to separate OAM signals from each communication link. Each of the amplifying units 40a to 40c is electrically connected to each of the demultiplexing units 30a to 30c, and each of the amplifying units 40a to 40c is configured to amplify the OAM signal separated by each of the demultiplexing units 30a to 30 c.
The processing unit 50 is electrically connected to each of the amplifying units 40a to 40c, and the processing unit 50 is configured to sample each of the amplified OAM signals, and analyze the OAM information corresponding to each communication link according to a sampling result, so as to obtain monitoring management information of 6 optical modules (three DUs 10a to 10c and three AAUs 20a to 20 c). The monitoring management information may be set according to actual requirements, for example, the monitoring management information may include information such as a supplier, power, temperature, current, voltage, wavelength, rate, and alarm of the optical module.
As shown in fig. 2, in some embodiments, the processing unit 50 may include an MCU, the MCU may include a plurality of ADC pins ADC _1, ADC _2, and ADC _3, and the processing unit 50 may sample the plurality of OAM signals subjected to the amplification processing through the plurality of ADC pins ADC _1 to ADC _ 3. In other embodiments, the processing unit 50 may also include a single chip, a processor, and the like to sample and process the plurality of amplified OAM signals to obtain OAM information.
In some embodiments, the processing unit 50 may sample the plurality of amplified OAM signals according to a preset sampling period, where the preset sampling period is synchronous with a clock of the plurality of OAM signals, so as to avoid that the sampling period deviates from the clock of the OAM signals, which may result in omission of the sampled OAM signals.
For example, the wavelength division units 30a to 30c are wave splitters, the amplification units 40a to 40c are amplifiers, when the AAUs 20a to 20c and the DUs 10a to 10c communicate with each other, the weak OAM signal is separated by the wave splitters without affecting the normal communication of the AAUs and the DUs, the weak OAM signal separated by the wave splitters is amplified by the amplifiers (for example, the parameters of the amplifiers may be set to: bias voltage 10uV, gain bandwidth 3.9MHz, noise 0.2uVpp, gain 10000), the OAM signal amplified by the amplifiers is accessed to the MCU, and the MCU may periodically sample the amplified OAM signal and analyze the OAM information corresponding to each communication link according to the sampling result.
In some embodiments, for each path of the amplified OAM signal, the processing unit 50 may obtain the high-low level decision threshold value by reading a plurality of sampling values and performing an averaging operation on the plurality of sampling values, for example, the number of the plurality of sampling values may be set according to actual requirements, and the average value of the plurality of sampling values is defined as the high-low level decision threshold value. For example, a level greater than the high-low level decision threshold value is determined as a high level, and a level less than the high-low level decision threshold value is determined as a low level.
The processing unit 50 may further obtain a rising edge and a falling edge of the OAM signal according to the high-low level decision threshold value, for example, the processing unit 50 may periodically sample the OAM signal by using an edge triggering method according to the high-low level decision threshold value, where a level from low (level 0) to high (level 1) is a rising edge, and a level from high to low is a falling edge. When the rising edge and the falling edge of the OAM signal are obtained, the processing unit 50 may also convert the obtained rising edge and the falling edge into binary data according to a decoding rule of the OAM signal (e.g., manchester decoding), for example, convert the rising edge (level 0 to level 1) into binary data "1" and convert the falling edge (level 1 to level 0) into binary data "0".
The processing unit 50 may further compare the converted binary data with a frame header and a frame tail of the OAM signal, and when the frame header and the frame tail are determined, frame the binary data to obtain frame data corresponding to the OAM signal, and then the processing unit 50 may analyze the frame data to obtain OAM information corresponding to the OAM signal.
In some embodiments, the frame data may be divided into a header, a checksum, a data portion, and a trailer, and the header and trailer may be predefined contents for the processing unit 50 to determine the header and trailer.
In some embodiments, the processing unit 50 may perform a check operation on the data portion to obtain a check value, and the check value obtained by the operation is compared with the check code. When the check value obtained by the operation is consistent with the check code, the frame data is verified to be passed, and the frame data can be stored, so that the subsequent analysis of the frame data is facilitated, and the OAM information is obtained.
In some embodiments, the check code included in the frame data sent by the sender is a check code obtained by performing a check operation on the sent data portion by the sender in the same check manner as that of the receiver, and the received data portion and the sent data portion can be ensured to be the same by comparing the check code with a check value obtained by the operation of the receiver.
In some embodiments, the processing unit 50 may sequentially process each OAM signal according to the sampling order of each OAM signal, resulting in frame data corresponding to each OAM signal. For example, when the reception processing of one frame data is completed, the reception processing of the next frame data is started. The data portion of the received frame data may be checked for CRC8 and the passing frame data may be checked for storage.
Fig. 3 is a flowchart illustrating steps of a method for monitoring tune-to-tune information according to an embodiment of the present invention. The method for monitoring the set top information can be applied to the set top information monitoring device 100, and can realize real-time acquisition of the set top information of the optical modules in a plurality of communication links.
Step S31, separates the OAM signal from each communication link.
In an embodiment, the separation of the OAM signal from each communication link may be implemented using a plurality of splitters, and the number of communication links may be equal to the number of splitters.
Step S32 is to perform amplification processing for each separated OAM signal.
In an embodiment, the amplification process for each separated OAM signal may be implemented by using a plurality of amplifiers, and the number of the amplifiers may be equal to the number of the communication links.
And step S33, sampling each amplified OAM signal, and analyzing according to the sampling result to obtain OAM information corresponding to each communication link.
In an embodiment, the MCU may be used to sample each amplified OAM signal, and analyze the OAM information corresponding to each communication link according to the sampling result. The MCU may sample the plurality of amplified OAM signals according to a preset sampling period, where the preset sampling period is synchronized with clocks of the plurality of OAM signals.
In an embodiment, each of the amplified OAM signals is sampled, and the OAM information corresponding to each communication link is obtained by analyzing according to the sampling resultThe method specifically comprises the following steps: a is1) Sampling the amplified OAM signal, and reading a plurality of sampling values; a is2) Carrying out averaging operation on the plurality of sampling values to obtain a high-low level decision threshold value, and acquiring a rising edge and a falling edge of the OAM signal according to the high-low level decision threshold value; a is3) Converting the obtained rising edge and falling edge into binary data according to a decoding rule of the OAM signal; a is4) Comparing the binary data obtained by conversion with a frame head and a frame tail of the OAM signal, and framing the binary data when the frame head and the frame tail are determined to obtain frame data corresponding to the OAM signal; a is5) Analyzing the frame data to obtain OAM information corresponding to the OAM signal.
In one embodiment, when framing the frame data, a CRC8 check may be used to check the data portion of the frame data to obtain a check value, and the check value is compared with the check code in the frame data, and when the calculated check value is consistent with the check code, the frame data is saved.
The device and the method for monitoring the top-tuning information can realize the real-time acquisition of the top-tuning information of a plurality of communication links, separate the top-tuning information through the wave splitter, avoid the problem that the communication between the optical module and the host and the receiving of the top-tuning signals of the optical module conflict, and solve the problem that the number and the position of the optical modules are limited and the top-tuning information of a plurality of optical modules cannot be acquired simultaneously.
It will be apparent to those skilled in the art that other variations and modifications may be made in accordance with the invention and its spirit and scope in accordance with the practice of the invention disclosed herein.
Claims (10)
1. A set top information monitoring apparatus, comprising a plurality of communication links, each of the communication links including a Distributed Unit (DU) and an Active Antenna Unit (AAU), wherein the set top information monitoring apparatus further comprises:
a plurality of wavelength division units, each of the wavelength division units being optically connected between the one DU and the one AAU, each of the wavelength division units being configured to separate an Operation Administration and Maintenance (OAM) signal from each of the communication links;
the plurality of amplifying units are correspondingly and electrically connected to each wavelength division unit, and each amplifying unit is used for amplifying the OAM signal separated by each wavelength division unit;
and the processing unit is electrically connected with each amplification unit and used for sampling each amplified OAM signal and analyzing according to a sampling result to obtain OAM information corresponding to each communication link.
2. The tune-to information monitoring device as claimed in claim 1, wherein the processing Unit comprises a Micro Controller Unit (MCU) including a plurality of Analog-to-Digital Converter (ADC) pins, and the MCU samples the plurality of OAM signals subjected to the amplification process through the plurality of ADC pins.
3. The apparatus according to claim 1 or 2, wherein the processing unit samples a plurality of the OAM signals according to a preset sampling period, and the preset sampling period is synchronized with a clock of the plurality of OAM signals.
4. The set top information monitoring apparatus of claim 2, wherein the MCU reads a plurality of sample values when sampling the amplified OAM signal through the ADC pin, and averaging a plurality of sampling values to obtain a high-low level decision threshold value, the MCU also obtains the rising edge and the falling edge of the OAM signal according to the high-low level decision threshold value, and converts the acquired rising edge and falling edge into binary data according to a decoding rule of the OAM signal, the MCU also compares the converted binary data with the frame header and the frame trailer of the OAM signal, and when the frame header and the frame trailer are determined, and framing the binary data to obtain frame data corresponding to the OAM signal, wherein the MCU is also used for analyzing the frame data to obtain OAM information corresponding to the OAM signal.
5. The tuning information monitoring device according to claim 4, wherein the frame data comprises the frame header, a check code, a data portion and the frame tail, and the MCU is further configured to perform a check operation on the data portion to obtain a check value, compare the check value obtained by the operation with the check code, and store the frame data when the check value obtained by the operation is consistent with the check code.
6. The apparatus according to claim 5, wherein the MCU is configured to sequentially process each of the OAM signals according to a sampling order of each of the OAM signals to obtain frame data corresponding to each of the OAM signals.
7. A method for monitoring information of tuning top is applied to a device for monitoring information of tuning top, the device for monitoring information of tuning top comprises a plurality of communication links, and the method for monitoring information of tuning top comprises the following steps:
separating out OAM signals from each of the communication links;
amplifying each separated OAM signal;
and sampling each amplified OAM signal, and analyzing according to a sampling result to obtain OAM information corresponding to each communication link.
8. The method for monitoring tune-up information according to claim 7, wherein said sampling each of said OAM signals that is amplified comprises:
and sampling the plurality of amplified OAM signals according to a preset sampling period, wherein the preset sampling period is synchronous with the clocks of the plurality of OAM signals.
9. The method for monitoring the tune-up information according to claim 7, wherein the sampling each of the OAM signals that is amplified, and analyzing the OAM information corresponding to each of the communication links according to the sampling result comprises:
sampling the amplified OAM signal, and reading a plurality of sampling values;
averaging a plurality of sampling values to obtain a high-low level decision threshold value, and acquiring a rising edge and a falling edge of the OAM signal according to the high-low level decision threshold value;
converting the acquired rising edge and the acquired falling edge into binary data according to the decoding rule of the OAM signal;
comparing the binary data obtained by conversion with a frame header and a frame tail of the OAM signal, and framing the binary data when the frame header and the frame tail are determined to obtain frame data corresponding to the OAM signal;
and analyzing the frame data to obtain OAM information corresponding to the OAM signal.
10. The method for monitoring the tuning information according to claim 9, wherein the frame data comprises the frame header, the check code, the data portion and the frame trailer, and the method for monitoring the tuning information further comprises:
carrying out check operation on the data part to obtain a check value, and comparing the check value obtained by operation with the check code;
and when the check value obtained by the operation is consistent with the check code, saving the frame data.
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