Device for realizing rapid protection switching of optical path based on mechanical optical switch technology

Abstract

The utility model discloses a device for realizing rapid protection switching of an optical path based on a mechanical optical switch technology, which comprises a main path optical port, a standby path optical port, a transmission optical port and a control circuit board for realizing protection switching of optical signals of the main path and the standby path, a microcontroller, a main optical signal intensity monitoring circuit, a standby optical signal intensity monitoring circuit, a mechanical optical switch and a mechanical optical switch driver are integrated on the control circuit board, and the main optical signal intensity monitoring circuit and the standby optical signal intensity monitoring circuit are both connected with the input end of the microcontroller. The mechanical optical switch driver is connected with the output end of the microcontroller, the mechanical optical switch is connected with the mechanical optical switch driver and is driven by the mechanical optical switch driver to act, the main optical port and the transmission optical port are connected to form a main optical path, or the standby optical port and the transmission optical port are connected to form a standby optical path. According to the utility model, the reliability of optical signal transmission is ensured, the cost is reduced, and the cost performance is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical signal transmission, and in particular relates to a device for realizing fast optical path protection switching based on mechanical optical switching technology. Background Art

[0002] Existing optical signals are transmitted through optical cables. Because optical cables are buried underground or overhead, they are often dug up due to improper municipal construction, resulting in optical signal interruption and affecting signal transmission. In order to improve reliability, two sets of equipment and two optical cables are generally used for simultaneous transmission, that is, two signals, two optical cables, transmitting the same data to ensure reliable signal transmission. This method has high reliability, but two sets of equipment are required, which is costly. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a device for realizing rapid protection switching of optical paths based on mechanical optical switching technology in view of the deficiencies in the above-mentioned prior art, which ensures the reliability of optical signal transmission while reducing costs and has high cost performance.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a device for realizing rapid protection switching of optical paths based on mechanical optical switching technology, including a main optical port, a backup optical port and a transmission optical port, and a control circuit board for realizing protection switching of main and backup optical signals, wherein the control circuit board is integrated with a microcontroller, a main optical signal strength monitoring circuit, a backup optical signal strength monitoring circuit, a mechanical optical switch and a mechanical optical switch driver, the main optical signal strength monitoring circuit and the backup optical signal strength monitoring circuit are both connected to the input end of the microcontroller, the mechanical optical switch driver is connected to the output end of the microcontroller, the mechanical optical switch is connected to the mechanical optical switch driver and is driven by the mechanical optical switch driver to connect the main optical port and the transmission optical port to form a main optical path, or connect the backup optical port and the transmission optical port to form a backup optical path.

[0005] In the above-mentioned device for realizing fast optical path protection switching based on mechanical optical switching technology, the microcontroller includes a single-chip microcomputer.

[0006] In the above-mentioned device for realizing fast optical path protection switching based on mechanical optical switching technology, the main path optical signal strength monitoring circuit and the backup path optical signal strength monitoring circuit both include optical power detectors.

[0007] The above-mentioned device for realizing fast protection switching of optical paths based on mechanical optical switching technology, wherein the mechanical optical switch is a 1×2 mechanical optical switch.

[0008] In the above-mentioned device for realizing fast protection switching of optical paths based on mechanical optical switching technology, the mechanical optical switch driver includes a stepping motor.

[0009] Compared with the prior art, the utility model has the following advantages: the utility model utilizes a mechanical optical switch for protection switching to select receiving a main optical signal or a backup optical signal, thereby realizing optical signal protection and ensuring the reliability of optical signal transmission while reducing costs and having a high cost-performance ratio; it solves the problem of high-reliability transmission of important services of customers while reducing costs.

[0010] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is the principle block diagram of the utility model;

[0013] Figure 3 This is a connection block diagram of the microcontroller of the utility model and other units.

[0014] Description of reference numerals:

[0015] 1-Transmission optical port; 2-Main optical port; 3-Backup optical port;

[0016] 4-main optical path; 5-backup optical path; 6-microcontroller;

[0017] 7-main optical signal strength monitoring circuit; 8-backup optical signal strength monitoring circuit;

[0018] 9-driver; 1OO-mechanical optical switch; 200-control circuit board. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the device of the utility model for realizing fast protection switching of optical paths based on mechanical optical switching technology includes a main optical port 2, a backup optical port 3 and a transmission optical port 1, and a control circuit board 200 for realizing protection switching of main and backup optical signals, wherein the control circuit board 200 is integrated with a microcontroller 6, a main optical signal strength monitoring circuit 7, a backup optical signal strength monitoring circuit 8, a mechanical optical switch 1OO and a mechanical optical switch driver 9, wherein the main optical signal strength monitoring circuit 7 and the backup optical signal strength monitoring circuit 8 are both connected to the input end of the microcontroller 6, the mechanical optical switch driver 9 is connected to the output end of the microcontroller 6, the mechanical optical switch 1OO is connected to the mechanical optical switch driver 9 and is driven by the mechanical optical switch driver 9 to connect the main optical port 2 and the transmission optical port 1 to form a main optical path 4, or connect the backup optical port 3 and the transmission optical port 1 to form a backup optical path 5.

[0020] In this embodiment, the microcontroller 6 includes a single chip microcomputer.

[0021] In this embodiment, the main optical signal strength monitoring circuit 7 and the backup optical signal strength monitoring circuit 8 both include optical power detectors.

[0022] In this embodiment, the mechanical optical switch 100 is a 1×2 mechanical optical switch.

[0023] In this embodiment, the mechanical optical switch driver 9 includes a stepping motor.

[0024] When the utility model is used, the main optical port 2 and the backup optical port 3 protect each other, the main optical signal strength monitoring circuit 7 detects the optical signal state of the main optical port 2 in real time, and converts the size of the optical power into the size of the voltage, and the backup optical signal strength monitoring circuit 8 detects the optical signal state of the backup optical port 3 in real time, and converts the size of the optical power into the size of the voltage; under normal circumstances, the optical signal from the main optical port 2 is received, and the mechanical optical switch 100 is connected to the transmission optical port 1, that is, the main optical port 2 and the transmission optical port 1 are optically connected; when it is detected that the optical signal from the main optical port 2 is interrupted or the signal is weak to below the threshold, the optical signal from the backup optical port 3 is received, and the microcontroller 6 drives the mechanical optical switch 1OO through the mechanical optical switch driver 9 (stepping motor) to make the backup optical port 3 and the transmission optical port 1 optically connected; in this way, the protection switching of the main and backup optical signals is completed, ensuring that when any optical signal of the main optical port 2 or the backup optical port 3 is interrupted, the mechanical optical switch 100 protects and switches to receive a good optical signal without affecting the business.

[0025] The important switching action of the whole process of the utility model is realized by the mechanical optical switch 100, and the mechanical optical switch technology is used to transmit one optical signal through two optical cables with different paths at the same time, that is, there is one set of equipment and two optical cables. The signal is divided into a main optical signal and a backup optical signal by the mechanical optical switch, and then the mechanical optical opening technology is used to realize automatic selection of the two optical signals. Under normal circumstances, the optical signal is transmitted through the main path. When the main path is broken, the mechanical optical switch automatically protects and switches to receive the backup optical signal to ensure the normal transmission of the business; while ensuring the reliability of optical signal transmission, the cost is reduced, and the cost performance is high.

[0026] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A device for realizing fast optical path protection switching based on mechanical optical switching technology, characterized in that: The invention comprises a main optical port (2), a backup optical port (3) and a transmission optical port (1), and a control circuit board (200) for realizing protection switching of main and backup optical signals. The control circuit board (200) is integrated with a microcontroller (6), a main optical signal strength monitoring circuit (7), a backup optical signal strength monitoring circuit (8), a mechanical optical switch (100) and a mechanical optical switch driver (9). The main optical signal strength monitoring circuit (7) and the backup optical signal strength monitoring circuit (8) are both connected to the input end of the microcontroller (6), the mechanical optical switch driver (9) is connected to the output end of the microcontroller (6), the mechanical optical switch (100) is connected to the mechanical optical switch driver (9) and driven by the mechanical optical switch driver (9) to connect the main optical port (2) and the transmission optical port (1) to form a main optical path (4), or to connect the backup optical port (3) and the transmission optical port (1) to form a backup optical path (5).

2. A device for realizing fast optical path protection switching based on mechanical optical switching technology according to claim 1, characterized in that: The microcontroller (6) comprises a single chip microcomputer.

3. A device for realizing fast optical path protection switching based on mechanical optical switching technology according to claim 1, characterized in that: The main optical signal strength monitoring circuit (7) and the backup optical signal strength monitoring circuit (8) both comprise optical power detectors.

4. A device for realizing fast optical path protection switching based on mechanical optical switching technology according to claim 1, characterized in that: The mechanical optical switch (100) is a 1×2 mechanical optical switch.

5. A device for realizing fast optical path protection switching based on mechanical optical switching technology according to claim 1, characterized in that: The mechanical optical switch driver (9) comprises a stepping motor.

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