Novel dual-link main / standby self-adaptive optical fiber transceiver

Abstract

The utility model discloses a novel double-link main / standby self-adaptive optical fiber transceiver, which comprises a main / standby double-link KVM optical fiber transmitter and a main / standby double-link KVM optical fiber receiver, a computer can be accessed and controlled through a remote keyboard, a mouse and a displayer, double backup of signals is achieved through a main link and a standby link, and continuity of communication is guaranteed under the condition that communication of the main link is interrupted. By adopting the main and standby double-link design, the communication link has an automatic switching function, and when the main link fails, the communication link can be automatically switched to the standby link, so that the continuity and the stability of the communication link are ensured, and the communication interruption caused by the failure of a single link is avoided. The novel double-link main and standby self-adaptive optical fiber transceiver has the characteristics of high reliability, flexibility, high-definition transmission and multifunctionality, self-adaptability and easiness in installation and maintenance, can meet the requirements on data transmission in different scenes, and has relatively high technical advantages.

Description

Technical Field

[0001] The utility model relates to the technical field of audio and video transmission equipment, and more specifically to a novel dual-link active-standby adaptive optical fiber transceiver for dual-link transmission. Background Art

[0002] At present, with the rapid development of information technology, the human-machine separation system has become a common application in many industries. This system places the computer host in the computer room for centralized maintenance and management, and the operator remotely accesses and controls it through terminal devices such as mouse, keyboard and monitor. This model greatly improves the security, stability and management efficiency of the system, allowing operators to conveniently perform various operations and management tasks from a remote location.

[0003] However, the traditional human-machine separation system also has a serious problem, that is, the failure of the optical fiber link may cause work interruption. Once the optical fiber link fails, the operator will not be able to access and operate the computer host normally, which will directly affect the work. The more difficult problem is that system maintenance often takes a certain amount of time, which means that during the maintenance period, the system will be paralyzed, the work efficiency will be seriously affected, and even serious consequences such as production line stagnation or data loss may occur.

[0004] Therefore, a more reliable and stable solution is needed to solve this problem, so as to reduce the adverse effects caused by optical fiber link failures. Utility Model Content

[0005] In view of this, the utility model provides a new dual-link active-standby adaptive optical fiber transceiver, which can solve the remote operation communication problem caused by optical fiber link failure, and can provide a backup solution to ensure that the system can continue to operate or return to normal working state as soon as possible. Such a solution will greatly improve the stability and reliability of the human-machine separation system, thereby ensuring the normal operation and work efficiency of the system.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A novel dual-link active / standby adaptive optical fiber transceiver, comprising an active / standby dual-link KVM optical fiber transmitter and an active / standby dual-link KVM optical fiber receiver;

[0008] Among them, the active-standby dual-link KVM optical fiber transmitter includes: a first body and a first FPGA, an HDMI receiving chip, a first audio analog-to-digital conversion chip and an RS232 to USB chip installed in the first body; the HDMI receiving chip, the first audio analog-to-digital conversion chip and the RS232 to USB chip are all connected to the first FPGA; the input end of the HDMI receiving chip is connected to the first HDMI input interface externally disposed on the first body; the input end of the first audio analog-to-digital conversion chip is connected to the first audio input interface externally disposed on the first body; the output end of the RS232 to USB chip is connected to the first RS232 interface externally disposed on the first body; two first LC interfaces are arranged on the rear panel of the first body, which are active and standby to each other and are respectively connected to the first FPGA;

[0009] The master-slave dual-link KVM optical fiber receiver comprises: a second body and a second FPGA, an HDMI transmitting chip, a second audio analog-to-digital conversion chip and a USB to RS232 chip installed in the second body; the HDMI transmitting chip, the second audio analog-to-digital conversion chip and the USB to RS232 chip are all connected to the second FPGA; the output end of the HDMI transmitting chip is connected to a second HDMI output interface externally arranged on the second body; the output end of the second audio analog-to-digital conversion chip is connected to a second audio output interface externally arranged on the second body; the input end of the USB to RS232 chip is connected to a second RS232 interface externally arranged on the second body; and two second LC interfaces are arranged on the rear panel of the second body, which are mutually master-slave and are respectively connected to the second FPGA.

[0010] Furthermore, the HDMI receiving chip supports the HDMI 2.0 protocol and is used to connect to the HDMI interface of a computer graphics card via an HDMI cable.

[0011] Furthermore, the first audio input interface is a 3.5mm audio jack, supports left and right stereo analog audio, and is used to connect to a 3.5mm audio jack of a computer audio interface via an audio cable.

[0012] Furthermore, the active / standby dual-link KVM fiber optic transmitter has two IO interfaces;

[0013] Among them, one IO interface is used as a mouse interface and a keyboard interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port of the computer through a USB cable;

[0014] The other IO interface is used as a USB data interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port of the computer via a USB cable.

[0015] Furthermore, the HDMI transmitting chip supports the HDMI 2.0 protocol and is used to connect to the HDMI interface of the display device at the operator end through an HDMI cable.

[0016] Furthermore, the second audio output interface is a 3.5mm audio jack, supports left and right stereo analog audio, and is used to connect to the headset of the operator end through an audio cable.

[0017] Furthermore, the active / standby dual-link KVM fiber optic receiver has two IO interfaces;

[0018] Among them, one IO interface is used as a mouse interface and a keyboard interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB mouse and USB keyboard on the operator side through a USB cable;

[0019] The other IO interface is used as a USB data interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port storage on the operator side through a USB cable.

[0020] Furthermore, both side surfaces of the first body and / or the second body have heat dissipation holes.

[0021] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a novel dual-link active-standby adaptive optical fiber transceiver, which has the following advantages:

[0022] 1 High reliability: The main and backup dual-link design enables the communication link to have an automatic switching function. When the main link fails, it can automatically switch to the backup link to ensure the continuity and stability of the communication link and avoid communication interruption due to a single link failure.

[0023] 2. High-definition transmission: It uses HDMI interface to transmit video signals, supports HDMI2.0 protocol, can realize high-definition video transmission, and ensures the quality of transmitted images.

[0024] 3. Versatility: In addition to transmitting video signals, it also supports the transmission of audio signals, mouse signals, keyboard signals and USB data, making it suitable for a variety of scenarios such as data centers, monitoring systems, etc.

[0025] 4. Adaptability: It has automatic detection function and can monitor the status of the main link in real time. Once a main link failure is detected, it can quickly switch to the backup link to ensure the continuity and stability of data transmission.

[0026] 5 Easy to install and maintain: It adopts modular design, clear structure and easy installation. At the same time, the interface settings on the rear panel are reasonable, which is convenient for connection and maintenance and reduces the workload of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 This is a structural front view of the active-standby dual-link KVM optical fiber transmitter provided by the utility model.

[0029] Figure 2 This is a structural rear view of the active-standby dual-link KVM optical fiber transmitter provided by the utility model.

[0030] Figure 3 This is a structural front view of the main and standby dual-link KVM optical fiber receiver provided by the utility model.

[0031] Figure 4 This is a rear view of the structure of the main and standby dual-link KVM fiber optic receiver provided by the utility model.

[0032] Figure 5 This is a functional block diagram of the active-standby dual-link KVM optical fiber transmitter provided by the utility model.

[0033] Figure 6 This is a functional block diagram of the primary and standby dual-link KVM fiber optic receiver provided by the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] The utility model embodiment discloses a novel dual-link active-standby adaptive fiber optic transceiver, including an active-standby dual-link KVM fiber optic transmitter and an active-standby dual-link KVM fiber optic receiver; the basic principle is: one transmitting terminal can output two fiber optic signals, and they are mutually active and standby. When one of the fiber optic links has a problem, the other can be immediately enabled. One receiving terminal can input two fiber optic signals, and they are mutually active and standby. When one of the fiber optic links has a problem, the other can be immediately enabled. The transmitting terminal and the receiving terminal can automatically detect faults and switch to start the standby link in time to ensure the normal operation of the system.

[0036] Reference Figure 1-2 As shown, the active-standby dual-link KVM optical fiber transmitter includes: a first body 1, a first front panel 2, a first rear panel 3, a first heat dissipation hole 4, a first status indicator light 5, an infrared transmitter 6, a first LCD display screen 7, a first RS232 interface 8, a first RS485 interface 9, a first IO interface 10, a first power interface 11, a first HDMI input interface 12, a first HDMI loop output interface 13, a first audio input interface 14, a first audio output interface 15, and first standard LC interfaces 16 and 17;

[0037] The first front panel 2 is fixedly mounted on the front surface of the first body 1, and the first status indicator light 5, infrared transmitter 6, and first LCD display screen 7 are fixedly mounted on the first front panel 2, and the three are in a central symmetrical structure. The first LCD display screen 7 can display the name and version number information of the dual-link active-standby adaptive optical fiber transmitter. The first status indicator light 5 can display the key states of the dual-link active-standby adaptive optical fiber transmitter, such as power-on, video connection, audio input and output connection, etc. in real time. The infrared transmitter 6 can send infrared data to each infrared device;

[0038] Three groups of Phoenix terminals are fixedly installed on the front surface of the first body 1, the first group of Phoenix terminals includes two first RS232 interfaces 8, the second group of Phoenix terminals includes two first RS485 interfaces 9, and the third group of Phoenix terminals includes two first IO interfaces 10;

[0039] First heat dissipation holes 4 are provided on both sides of the first body 1, so that the dual-link active-standby adaptive optical fiber transmitter can better regulate the internal temperature when working;

[0040] A first rear panel 3 is fixedly mounted on the rear surface of the first body 1, and a first power interface 11 is fixedly mounted on the left side of the first rear panel 3 to supply power to the entire dual-link active / standby adaptive optical fiber transmitter;

[0041] A first HDMI input interface 12 and a first HDMI loop output interface 13 are fixedly installed on the upper left side of the first rear panel 3. The first HDMI input interface 12 can receive video signals with a resolution of up to 4K x 2K and 3840*2160; the first HDMI loop output interface 13 can check whether the video signal received by the HDMI input interface 12 is correct;

[0042] A first audio input interface 14 and a first audio output interface 15 are fixedly installed on the lower left side of the first rear panel 3. The first audio input interface 14 can receive audio input from devices such as a PC and a mixer, and the first audio output interface 15 can send audio to audio output devices such as speakers;

[0043] Two standard LC interfaces are fixedly installed on the right side of the first rear panel 3, which can serve as a primary and a backup for each other, and send the video data received by the first HDMI input interface 12 and the audio data received by the first audio input interface 14 to the optical fiber link without loss.

[0044] Among them, the HDMI receiving chip of the active-standby dual-link KVM fiber optic transmitter has an HDMI video interface, supports the HDMI2.0 protocol, and is used to connect to the HDMI interface of the computer graphics card through an HDMI cable.

[0045] The first audio input interface is a 3.5mm audio jack, which supports left and right stereo analog audio and is connected to the 3.5mm audio jack of the computer audio interface through an audio cable.

[0046] Active / standby dual-link KVM fiber transmitter with two IO interfaces;

[0047] Among them, one IO interface is used as a mouse interface and a keyboard interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port of the computer through a USB cable;

[0048] The other IO interface is used as a USB data interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port of the computer via a USB cable.

[0049] Reference Figure 3-4 As shown, the active / standby dual-link KVM fiber optic receiver includes: a second body 18, a second front panel 19, a second rear panel 20, a second heat dissipation hole 21, a second status indicator light 22, an infrared receiver 23, a second LCD display screen 24, a second RS232 interface 25, a second RS485 interface 26, a second IO interface 27, a second power interface 28, a second HDMI output interface 29, a second audio input interface 30, a second audio output interface 31, and second standard LC interfaces 32 and 33;

[0050] A second front panel 19 is fixedly mounted on the front surface of the second body 18, and a second status indicator light 22, an infrared receiver 23, and a second LCD display screen 24 are fixedly mounted on the second front panel 19, and the three are in a centrally symmetrical structure. The second LCD display screen 24 can display the name and version number information of the dual-link active-standby adaptive fiber optic receiver. The second status indicator light 22 can display key states of the dual-link active-standby adaptive fiber optic receiver, such as power-on, video connection, audio input and output connection, etc. in real time. The infrared receiver 23 can receive information from the infrared control device, and then package the data and send it to the dual-link active-standby adaptive fiber optic transmitter through the optical fiber link;

[0051] Three groups of Phoenix terminals are fixedly installed on the front surface of the second body 18, the first group of Phoenix terminals includes two second RS232 interfaces 25, the second group of Phoenix terminals includes two second RS485 interfaces 26, and the third group of Phoenix terminals includes two second IO interfaces 27;

[0052] Second heat dissipation holes 21 are provided on both sides of the second body 18, so that the dual-link active-standby adaptive optical fiber receiver can better regulate the internal temperature when working;

[0053] A second rear panel 20 is fixedly mounted on the rear surface of the second body 18, and a second power interface 28 is fixedly mounted on the left side of the second rear panel 20 to supply power to the entire dual-link active / standby adaptive optical fiber receiver;

[0054] A second HDMI output interface 29 is fixedly installed on the upper left side of the second rear panel 20. The second HDMI output interface 29 can be connected to a display device for displaying a video signal with a resolution of up to 4K x 2K3840*2160;

[0055] A second audio input interface 30 and a second audio output interface 31 are fixedly installed on the lower left side of the second rear panel 20. The second audio input interface 30 can receive audio input from a PC, a mixer, and other devices, and the second audio output interface 31 can send audio to an audio output device such as a speaker.

[0056] Two standard LC interfaces are fixedly installed on the right side of the second rear panel 20, which can serve as master and backup for each other, decode the video, audio, control and other information sent by the dual-link master and backup adaptive optical fiber transmitter, and then play it out through the relevant interfaces.

[0057] Among them, the main and standby dual-link KVM fiber optic receiver is used to convert the optical signals of the main link fiber and the standby link fiber into video signals, audio signals, mouse signals, keyboard signals, and USB data.

[0058] The HDMI transmitting chip of the active / standby dual-link KVM fiber optic receiver has an HDMI video interface and supports the HDMI 2.0 protocol. It is used to connect to the HDMI interface of the display device at the operator end through an HDMI cable.

[0059] The second audio output interface is a 3.5mm audio jack, which supports left and right stereo analog audio and can be used to connect to the operator's headphones.

[0060] Active / standby dual-link KVM fiber optic receiver with two IO interfaces;

[0061] Among them, one IO interface is used as a mouse interface and a keyboard interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB mouse and USB keyboard on the operator side through a USB cable;

[0062] The other IO interface is used as a USB data interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port storage on the operator side through a USB cable.

[0063] Reference Figure 5-6 As shown, the novel dual-link active-standby adaptive fiber optic transceiver of the utility model includes an active-standby dual-link KVM fiber optic transmitter and an active-standby dual-link KVM fiber optic receiver: wherein the active-standby dual-link KVM fiber optic transmitter is used to convert the computer's video signal, audio signal, mouse signal, keyboard signal, and USB data into two optical signals, one active and one standby, and send them out in a copy mode through the main link optical fiber and the standby link optical fiber; wherein the active-standby dual-link KVM fiber optic receiver can simultaneously receive two optical signals, one active and one standby, and convert the optical signals into video signals, audio signals, mouse signals, keyboard signals, and USB data. The active-standby dual-link KVM fiber optic receiver has an automatic detection function. When the signal of the main link fails, it will automatically obtain data from the standby link to ensure the normal operation of the system. When the original main link signal returns to normal, it will automatically switch to the main link and obtain data from the main link. The system can maintain normal operation during the entire process.

[0064] like Figure 5 As shown in the figure, the functional block diagram of the active-standby dual-link KVM fiber transmitter is as follows: the video signal of the PC host is converted into a 30-bit LVTTL data interface through the HDMI2.0 receiving chip, and the LVTTL data is connected to the FPGA; the audio of the PC host is connected to the audio analog-to-digital conversion chip, and the IIS data is output to the FPGA; the video and audio signals received are converted into 2-channel serdes serial data through the FPGA, and then sent through the optical fiber line. The USB interface of the PC host is connected to the RS232 to USB conversion chip, and the received serdes data is connected to the FPGA through 2 optical fiber connections. The FPGA converts the main link serdes data into RS232 data. If the signal of the main link fails, the serdes data of the backup link is automatically converted to RS232 data, and then the RS232 signal output by the FPGA is connected to the RS232 to USB conversion chip.

[0065] like Figure 6As shown, the serdes data received through two optical fibers is connected to the FPGA. The FPGA converts the main link serdes data into 30-bit LVTTL data and IIS data. If the signal of the main link fails, the serdes data of the backup link is automatically converted into 30-bit LVTTL data and IIS data, and then the LVTTL data is converted into a video signal through the HDMI2.0 sending chip, and the IIS data is converted into an audio signal through the audio digital-to-analog conversion chip. The USB signal of the mouse and keyboard is converted into RS232 data through the USB to RS232 chip and input into the FPGA, which is converted into two-way serdes serial data through the FPGA and then sent through the optical fiber line. In this way, the mouse and keyboard can operate the computer remotely, and the signal backup is realized through the main and backup dual links.

[0066] The utility model provides a novel dual-link active-standby adaptive optical fiber transceiver, wherein the active-standby dual-link KVM optical fiber transmitter is used to embed and convert video and audio signals into serial data, which are divided into active-standby dual links and sent out through optical fibers. At the same time, the active-standby dual-link KVM optical fiber transmitter is responsible for extracting USB signals from the serial data received in the dual links for analysis and processing. By default, the USB signal of the main link is sent to the PC host. When the signal communication of the main link fails, the serial data will be automatically received from the backup link and the USB signal will be extracted and sent to the PC host, so as to ensure the continuous and uninterrupted USB data transmission. The active-standby dual-link KVM optical fiber receiver is used to de-embed the received optical fiber signals of the active-standby two links into video signals and audio signals, and analyze and process the data. When the signal of the main link fails, the serial data will be automatically received from the backup link. At the same time, the active-standby dual-link KVM optical fiber receiver embeds and converts the USB signals of the mouse and keyboard into serial data, which are divided into active-standby dual links and sent out through optical fibers. The dual-link active-standby adaptive optical fiber transceiver of the utility model can access and control a computer through a remote keyboard, mouse and display, realize dual backup of signals through active-standby dual links, and ensure the continuity of communication when the main link communication is interrupted.

[0067] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0068] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel dual-link active / standby adaptive optical fiber transceiver, characterized in that: Includes active / standby dual-link KVM fiber optic transmitter and active / standby dual-link KVM fiber optic receiver; Among them, the active-standby dual-link KVM optical fiber transmitter includes: a first body and a first FPGA, an HDMI receiving chip, a first audio analog-to-digital conversion chip and an RS232 to USB chip installed in the first body; the HDMI receiving chip, the first audio analog-to-digital conversion chip and the RS232 to USB chip are all connected to the first FPGA; the input end of the HDMI receiving chip is connected to the first HDMI input interface externally disposed on the first body; the input end of the first audio analog-to-digital conversion chip is connected to the first audio input interface externally disposed on the first body; the output end of the RS232 to USB chip is connected to the first RS232 interface externally disposed on the first body; two first LC interfaces are arranged on the rear panel of the first body, which are active and standby to each other and are respectively connected to the first FPGA; The master-slave dual-link KVM optical fiber receiver comprises: a second body and a second FPGA, an HDMI transmitting chip, a second audio analog-to-digital conversion chip and a USB to RS232 chip installed in the second body; the HDMI transmitting chip, the second audio analog-to-digital conversion chip and the USB to RS232 chip are all connected to the second FPGA; the output end of the HDMI transmitting chip is connected to a second HDMI output interface externally arranged on the second body; the output end of the second audio analog-to-digital conversion chip is connected to a second audio output interface externally arranged on the second body; the input end of the USB to RS232 chip is connected to a second RS232 interface externally arranged on the second body; and two second LC interfaces are arranged on the rear panel of the second body, which are mutually master-slave and are respectively connected to the second FPGA.

2. According to claim 1, a novel dual-link active / standby adaptive optical fiber transceiver is characterized in that: The HDMI receiving chip supports the HDMI 2.0 protocol and is used to connect to the HDMI interface of a computer graphics card via an HDMI cable.

3. The novel dual-link active / standby adaptive optical fiber transceiver according to claim 1, characterized in that: The first audio input interface is a 3.5mm audio jack, which supports left and right stereo analog audio and is connected to the 3.5mm audio jack of a computer audio interface via an audio cable.

4. The novel dual-link active / standby adaptive optical fiber transceiver according to claim 1, characterized in that: The active / standby dual-link KVM optical fiber transmitter has two IO interfaces; Among them, one IO interface is used as a mouse interface and a keyboard interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port of the computer through a USB cable; The other IO interface is used as a USB data interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port of the computer via a USB cable.

5. The novel dual-link active / standby adaptive optical fiber transceiver according to claim 1, characterized in that: The HDMI transmitting chip supports the HDMI 2.0 protocol and is used to connect to the HDMI interface of the display device at the operator end through an HDMI cable.

6. The novel dual-link active / standby adaptive optical fiber transceiver according to claim 1, characterized in that: The second audio output interface is a 3.5mm audio jack, which supports left and right stereo analog audio and is used to connect to the headset at the operator end through an audio cable.

7. The novel dual-link active / standby adaptive optical fiber transceiver according to claim 1, characterized in that: The active / standby dual-link KVM optical fiber receiver has two IO interfaces; Among them, one IO interface is used as a mouse interface and a keyboard interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB mouse and USB keyboard on the operator side through a USB cable; The other IO interface is used as a USB data interface, supports USB2.0 protocol, is compatible with USB3.0, and is used to connect to the USB port storage on the operator side through a USB cable.

8. The novel dual-link active / standby adaptive optical fiber transceiver according to claim 7, characterized in that: Both sides of the first body and / or the second body are provided with heat dissipation holes.

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