Multi-path optical fiber data receiving and transmitting monitoring device

Abstract

The utility model discloses a multipath optical fiber transmit-receive data monitoring device, which comprises a plurality of independent channels, and each channel comprises an optical fiber transmit-receive unit, two one-to-two differential signal buffers and a high-speed optical fiber data monitoring unit. The optical fiber transmit-receive unit comprises a downlink SFP optical module and an uplink SFP optical module. The high-speed optical fiber data monitoring unit comprises a downlink monitoring SFP optical module and an uplink monitoring SFP optical module. And the high-speed optical fiber data monitoring unit of each channel is respectively connected with a monitoring upper computer. The multipath optical fiber transmit-receive data monitoring device provided by the utility model is simple in structure, ingenious in design, low in cost and high in performance. Monitoring data can be received and stored through an upper computer, and optical fiber data can be stored and analyzed in real time.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-speed communication data monitoring, and particularly relates to a multi-channel optical fiber receiving and transmitting data monitoring device. Background Art

[0002] Information transmission is an important factor in promoting the development of science and technology. From ancient beacon fire communication to current 5G communication, the way information is transmitted has undergone earth-shaking changes. In order to meet people's growing demand for high-speed and stable data transmission, optical fiber communication technology has emerged and has now occupied the mainstream position of communication methods. Compared with traditional communication methods, optical fiber communication technology has the advantages of high transmission speed, large data bandwidth, and low energy consumption. With the rapid development of cloud computing, the Internet of Things, aerospace and other fields and the increasing popularity of big data applications, the application scenarios of optical fiber communication technology in the field of information and communication are more diverse and ubiquitous.

[0003] Optical fiber communication requires the generation of optical signals through the transmitting device, which are transmitted to the receiving device through the optical fiber line, and finally the signals are converted into electrical signals. However, due to the brittle texture and poor mechanical strength of optical fiber, it is easy to be interfered. During the installation and use process, the optical fiber may be bent, stretched, rubbed, etc., and the optical signal will be attenuated and severely deformed. In actual use, it is necessary to conveniently and quickly verify in real time that the optical signal is not interfered with during the transmission process and is accurately converted into an electrical signal. However, there is no high-speed optical fiber data monitoring equipment in the current high-speed communication data monitoring field, and it is impossible to monitor and verify in real time whether the optical fiber data in high-speed transmission is correct. In order to fill the gap in the field of high-speed communication data monitoring and meet people's urgent needs in engineering, scientific research and daily use. Therefore, the development of high-speed optical fiber data monitoring equipment is extremely important. Utility Model Content

[0004] The problem solved by the utility model is to provide a multi-channel optical fiber receiving and transmitting data monitoring device, which can monitor the receiving and transmitting data of multiple high-speed optical fibers in real time while transmitting and receiving data normally, without affecting the normal communication of the optical fiber receiving and transmitting link.

[0005] The utility model is realized by the following technical solutions:

[0006] A multi-channel optical fiber transceiver data monitoring device comprises multiple independent channels, each channel comprises an optical fiber transceiver unit, two 1-to-2 differential signal buffers and a high-speed optical fiber data monitoring unit; the optical fiber transceiver unit comprises a downlink SFP optical module and an uplink SFP optical module, and the high-speed optical fiber data monitoring unit comprises a downlink monitoring SFP optical module and an uplink monitoring SFP optical module; the high-speed optical fiber data monitoring unit of each channel is respectively connected to a monitoring host computer;

[0007] In each channel, the receiving port of the downstream SFP optical module receives one channel of communication data and gives it to the first 1-to-2 differential signal buffer. The first 1-to-2 differential signal buffer divides the communication data into two channels without loss. One channel is given to the sending port of the upstream SFP optical module and then to the target device through the optical fiber line. The other channel is given to the receiving port of the downstream monitoring SFP optical module to monitor the downstream high-speed communication data.

[0008] The receiving port of the upstream SFP optical module receives another high-speed communication data and gives it to the second 1-to-2 differential signal buffer. The second 1-to-2 differential signal buffer divides the communication data into two paths without loss. One path is given to the sending port of the downstream SFP optical module and sent to the target device through the optical fiber line, and the other path is given to the receiving port of the upstream monitoring SFP optical module to monitor the upstream high-speed communication data.

[0009] The downlink SFP optical module, the uplink SFP optical module, the downlink monitoring SFP optical module, and the uplink monitoring SFP optical module are all AFBR optical transceiver modules, wherein RD- and RD+ are output differential pins, and TD- and TD+ are input differential pins;

[0010] The matching circuit of the AFBR optical transceiver module includes an LC resonant circuit connected to the VCC port, a filter capacitor connected to the VEE port, and a grounded current-limiting resistor; the LC resonant circuit is composed of an inductor and two capacitors connected in series.

[0011] The 1-to-2 differential signal buffer is a SY58011 buffer, wherein IN+ and IN- are differential input pins, and Q0+, Q0-, Q1+, and Q1- are differential output pins;

[0012] The matching circuit of the SY58011 buffer includes capacitors connected to the differential input pin and the differential output pin, respectively.

[0013] The input pins of the 1-to-2 differential signal buffer support three levels: LVPECL level, LVDS level and CML level.

[0014] The utility model has the following beneficial technical effects:

[0015] The multi-channel optical fiber receiving and transmitting data monitoring device provided by the utility model fills the gap in the field of high-speed data monitoring and meets the urgent needs of people in engineering, scientific research and daily use. It has 4 channels of optical fiber receiving and transmitting and 8 channels of high-speed optical fiber data monitoring, which are independent and work in parallel without affecting each other; while transmitting and receiving data normally, it can also monitor whether the data is correct or not, without affecting the normal communication of the optical fiber receiving and transmitting link.

[0016] The multi-channel optical fiber data transceiver monitoring device provided by the utility model has a simple structure, ingenious design, low cost and high performance. It supports a data transmission rate of up to 8.5Gbps, can receive and store monitoring data through a host computer, can store and analyze optical fiber data in real time, and supports a storage capacity of up to 100G. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a single-channel circuit diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the working principle of the utility model;

[0020] Figure 4 This is a schematic diagram of the display interface of the upper computer of the utility model;

[0021] Among them: 1 is the SFP optical module. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are intended to explain the present invention rather than to limit it.

[0023] A multi-channel optical fiber transceiver data monitoring device comprises multiple independent channels, each channel comprises an optical fiber transceiver unit, two 1-to-2 differential signal buffers and a high-speed optical fiber data monitoring unit; the optical fiber transceiver unit comprises a downlink SFP optical module and an uplink SFP optical module, and the high-speed optical fiber data monitoring unit comprises a downlink monitoring SFP optical module and an uplink monitoring SFP optical module; the high-speed optical fiber data monitoring unit of each channel is respectively connected to a monitoring host computer;

[0024] In each channel, the receiving port of the downstream SFP optical module receives one channel of communication data and gives it to the first 1-to-2 differential signal buffer. The first 1-to-2 differential signal buffer divides the communication data into two channels without loss. One channel is given to the sending port of the upstream SFP optical module and then to the target device through the optical fiber line. The other channel is given to the receiving port of the downstream monitoring SFP optical module to monitor the downstream high-speed communication data.

[0025] The receiving port of the upstream SFP optical module receives another high-speed communication data and gives it to the second 1-to-2 differential signal buffer. The second 1-to-2 differential signal buffer divides the communication data into two paths without loss. One path is given to the sending port of the downstream SFP optical module and sent to the target device through the optical fiber line, and the other path is given to the receiving port of the upstream monitoring SFP optical module to monitor the upstream high-speed communication data.

[0026] Specific examples are given below.

[0027] See also Figure 1-Figure 4 A multi-channel optical fiber transceiver data monitoring device has a total of 16 SFP optical modules, 4 channels of optical fiber transceivers, and 8 channels of optical fiber uplink and downlink data monitoring. The uplink and downlink communication data are given to the multi-channel optical fiber transceiver data monitoring device through optical fiber lines, and the optical fiber transceivers of each channel work normally.

[0028] Uplink and downlink communication data are transmitted bidirectionally in each channel. In the optical fiber transceiver unit, the SFP optical module of the uplink communication link can receive the communication data of the downlink communication link, and similarly, the SFP optical module of the downlink communication link can receive the communication data of the uplink communication link. When the optical fiber transceiver module works normally, the 8 SFP optical modules of the monitoring unit independently monitor the uplink and downlink data sent and received by the 4-channel optical fiber.

[0029] The SFP optical module of the monitoring unit is connected to the host computer through an optical fiber line, and the monitoring data is sent to the matching host computer, which receives and stores the monitoring data. By viewing the cache data in real time and analyzing the data, the data can be monitored and tested to see if there are any errors, interference or attenuation.

[0030] The various components and signal acquisition and processing of the present invention are described in detail below.

[0031] like Figure 1 As shown, the multi-channel optical fiber transceiver data monitoring device has a total of 16 SFP optical modules, 8 SFP optical modules are used for 4 channels of normal optical fiber transceiver, each channel needs to forward uplink communication data and downlink communication data, so each channel needs 2 SFP optical modules. The other 8 SFP optical modules are used to monitor uplink and downlink high-speed communication data respectively.

[0032] Single channel optical fiber transceiver unit and uplink and downlink communication data monitoring unit such as Figure 2 As shown, the SFP optical module used is the AFBR series optical transceiver module produced by Avago Technologies; the AFBR series optical transceiver module is cheap, has excellent performance, can support data transmission rates up to 8.5Gbps, and has low power consumption.

[0033] In the AFBR optical module, RD- and RD+ are differential pins used to output communication data transmitted by the optical fiber. TD- and TD+ are differential pins used to input communication data transmitted by the circuit, convert the communication data into optical signals, and give them to the optical fiber.

[0034] Take an optical module to illustrate its matching circuit, and the matching circuits of other optical modules are similar; in the matching circuit, C35 is 10uF, C36 is 100nF, which is used to filter out the clutter and AC components of the power supply; L1 and L2 are 100uH, C1 and C3 are 10uF, C2 and C4 are 100nF, respectively forming LC resonant circuits for filtering and impedance matching. The current limiting resistors R1, R2, and R3 are 4.7K, which are used for current limiting.

[0035] The optical transceiver module sends the communication data to the 1-to-2 differential signal buffer, which uses the SY58011 produced by Broadcom. The SY58011 has the advantages of low latency and low power consumption, and the input and output delay is less than 0.25 nanoseconds. It supports 3 input levels, LVPECL level, LVDS level and CML level, and supports a data transmission rate of up to 10.7Gbps.

[0036] In the 1-to-2 differential signal buffer, IN+ and IN- are differential input pins, and Q0+, Q0-, Q1+, and Q1- are differential output pins.

[0037] A 1-to-2 differential signal buffer is used to illustrate its matching circuit, and the other 1-to-2 differential signal buffer circuits are similar; among them, C15=10nF, C16=10nF, C17=10nF, C18=10nF, C10=10pF, C11=10pF, which can effectively reduce interference and noise during signal transmission, ensure signal quality and stability, help high-speed signals maintain smooth and continuous transmission during transmission, and reduce signal loss and blocking.

[0038] The 1-to-2 differential signal buffer divides the communication data into two identical paths, one path is given to the SFP optical module for monitoring, and the other path is given to the transceiver circuit SFP optical module for normal communication.

[0039] like Figure 3 As shown, the high-speed optical fiber data transmission and reception and uplink and downlink high-speed communication data monitoring principles of the four channels of the multi-channel optical fiber transceiver data monitoring device are consistent. Each channel includes four SFP optical modules for transmission of uplink communication data and downlink communication data and for monitoring of uplink communication data and downlink communication data.

[0040] The downlink communication data is given to the input pin of the SFP1 optical module, and the SFP1 optical module gives the downlink communication data to the first 1-to-2 differential signal buffer. The first 1-to-2 differential signal buffer divides the downlink communication data into two identical paths, one path is given to the SFP2 optical module for downlink communication data monitoring, and the other path is given to the output pin of the SFP3 optical module.

[0041] The uplink communication data is given to the input pin of the SFP3 optical module, and the SFP3 optical module gives the uplink communication data to the second 1-to-2 differential signal buffer. The second 1-to-2 differential signal buffer divides the downlink communication data into two identical paths, one path is given to the SFP4 optical module for uplink communication data monitoring, and the other path is given to the output pin of the SFP1 optical module. Each channel is independent of each other and runs in parallel.

[0042] like Figure 4 As shown, the host computer for monitoring data reception and storage; the upper left corner of the display is the device selection drop-down box and the initialization status box, and below it are some option boxes for MEM functions. Including MEM read and write selection boxes, as well as read and write address and write data input boxes. The lower left corner is the DMA read and write function box, including DMA read and write selection boxes. As well as the DMA read and write data length selection box and the DMA write data type drop-down box, the DMA write data type includes constants and increments. Below the DMA read and write function box, there is a write data storage location selection box and a test mode and stop button box. There are two test modes to choose from in the test mode, PCIE test and fiber test. On the right is a blank box that can display the data storage speed and storage file size in real time.

[0043] After the multi-channel optical fiber transceiver data monitoring device is powered on, the uplink high-speed data and the downlink high-speed data are sent to the SFP optical module for optical fiber transceiver in any channel through the optical fiber line. Then the SFP optical module used for high-speed optical fiber data monitoring can send the data to the host computer through the optical fiber line. Through the host computer, click the DMA read button, and the host computer can store the high-speed optical fiber data in real time. By viewing the stored data in real time, analyzing and checking the data, it is possible to monitor whether the optical fiber data is wrong or interfered with and attenuated.

[0044] The above embodiments are preferred examples for implementing the present invention, and the present invention is not limited to the above embodiments. Any non-essential additions and substitutions made by those skilled in the art based on the technical features of the present invention are within the protection scope of the present invention.

Claims

1. A multi-channel optical fiber data transmission and reception monitoring device, characterized in that: It includes multiple independent channels, each channel includes an optical fiber transceiver unit, two 1-to-2 differential signal buffers and a high-speed optical fiber data monitoring unit; the optical fiber transceiver unit includes a downlink SFP optical module and an uplink SFP optical module, and the high-speed optical fiber data monitoring unit includes a downlink monitoring SFP optical module and an uplink monitoring SFP optical module; the high-speed optical fiber data monitoring unit of each channel is respectively connected to a monitoring host computer; In each channel, the receiving port of the downstream SFP optical module receives one channel of communication data and gives it to the first 1-to-2 differential signal buffer. The first 1-to-2 differential signal buffer divides the communication data into two channels without loss. One channel is given to the sending port of the upstream SFP optical module and then to the target device through the optical fiber line. The other channel is given to the receiving port of the downstream monitoring SFP optical module to monitor the downstream high-speed communication data. The receiving port of the upstream SFP optical module receives another high-speed communication data and gives it to the second 1-to-2 differential signal buffer. The second 1-to-2 differential signal buffer divides the communication data into two paths without loss. One path is given to the sending port of the downstream SFP optical module and given to the target device through the optical fiber line, and the other path is given to the receiving port of the upstream monitoring SFP optical module to monitor the upstream high-speed communication data.

2. The multi-channel optical fiber data transmission and reception monitoring device according to claim 1, characterized in that: The downlink SFP optical module, the uplink SFP optical module, the downlink monitoring SFP optical module, and the uplink monitoring SFP optical module are all AFBR optical transceiver modules, wherein RD- and RD+ are output differential pins, and TD- and TD+ are input differential pins; The matching circuit of the AFBR optical transceiver module includes an LC resonant circuit connected to the VCC port, a filter capacitor connected to the VEE port, and a grounded current-limiting resistor; the LC resonant circuit is composed of an inductor and two capacitors connected in series.

3. The multi-channel optical fiber data transmission and reception monitoring device according to claim 1, characterized in that: The 1-to-2 differential signal buffer is a SY58011 buffer, wherein IN+ and IN- are differential input pins, and Q0+, Q0-, Q1+, and Q1- are differential output pins; The matching circuit of the SY58011 buffer includes capacitors connected to the differential input pin and the differential output pin, respectively.

4. The multi-channel optical fiber data receiving and transmitting monitoring device according to claim 1 or 3, characterized in that: The input pins of the 1-to-2 differential signal buffer support three levels: LVPECL level, LVDS level and CML level.

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