Optical signal channel switching control device

Abstract

The utility model discloses an optical signal channel switching control device, which is applied to optical equipment, the optical equipment comprises local optical equipment, and upstream optical equipment and downstream optical equipment of the local optical equipment, and each optical equipment is provided with a first optical signal transceiving unit and a second optical signal transceiving unit. The local optical device is connected with the upstream optical device through the main contact of the first optical switch, and is connected with the downstream optical device through the main contact of the second optical switch. The first photoelectric signal mutual conversion unit is connected with a first optical signal transmit-receive unit of local upstream optical equipment through a standby contact of the first optical switch, and the second photoelectric signal mutual conversion unit is connected with a first optical signal transmit-receive unit of local downstream optical equipment through a standby contact of the second optical switch. The first photoelectric signal mutual conversion unit is connected with the second photoelectric signal mutual conversion unit, and the controller is correspondingly connected with the control end of the first optical switch and the control end of the second optical switch. By adopting the technical scheme, the optical signal is re-amplified, and the communication between two stations is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of base station signal transmission technology and relates to an optical signal channel switching control device. Background Technology

[0002] The transmission of optical signals in optical fibers is somewhat similar to the transmission of electrical signals in metal wires. However, it is well known that switching an optical signal from an input optical fiber to a different output optical fiber is much more difficult than switching an electrical signal through an electronic switch.

[0003] Electrical signals can be easily connected when transmitted through metal wires, but optical signals require extremely precise coupling to move from the input fiber to the output fiber; otherwise, the loss of light intensity will be severe. Therefore, optical switches used to switch input light to different output ports must have very high precision.

[0004] In the prior art, such as patent 201621486329.4, an optical bypass is disclosed, including an optical switch. The optical switch has four optical fiber interfaces, including two input interfaces and two output interfaces. The output interface of a first device is connected to the first input interface of the optical switch, the input interface of a second device is connected to the first output interface of the optical switch, the output interface of a second device is connected to the second input interface of the optical switch, and the input interface of a third device is connected to the second output interface of the optical switch.

[0005] Existing mechanical optical switches suffer from significant optical attenuation and lack optical amplification. When a site fails, the fiber optic distance at the backup branch site increases, which can lead to signal loss and connection failure. Utility Model Content

[0006] The purpose of this invention is to provide an optical signal channel switching control device that uses an optoelectronic signal conversion unit to re-amplify the optical signal, thereby ensuring communication between two stations.

[0007] To achieve the above objectives, the basic solution of this utility model is as follows: an optical signal channel switching control device, applied to optical equipment, the optical equipment including local optical equipment, upstream optical equipment and downstream optical equipment of the local optical equipment, each optical equipment is provided with a first optical signal transceiver unit and a second optical signal transceiver unit, including a first optical switch, a second optical switch, a first photoelectric signal conversion unit, a second photoelectric signal conversion unit, a power supply detection module, an optical signal detection module and a controller;

[0008] The first optical transceiver unit of the local optical device is connected to the second optical transceiver unit of its upstream optical device through the main contact of the first optical switch, and the second optical transceiver unit of the local optical device is connected to the first optical transceiver unit of its downstream optical device through the main contact of the second optical switch.

[0009] The first photoelectric signal conversion unit is connected to the second optical signal transceiver unit of the local upstream optical equipment through the spare contact of the first optical switch, and the second photoelectric signal conversion unit is connected to the first optical signal transceiver unit of the local downstream optical equipment through the spare contact of the second optical switch. The first photoelectric signal conversion unit is connected to the second photoelectric signal conversion unit.

[0010] The optical signal detection module is used to detect the optical signal in the corresponding optical path of the optical device, and the power supply detection module is used to collect the electrical signal of the optical device. The output terminals of the optical signal detection module and the power supply detection module are connected to the controller, and the control signal output terminal of the controller is connected to the control terminals of the first optical switch and the second optical switch respectively.

[0011] The working principle and beneficial effects of this basic solution are as follows: This technical solution uses an optical signal detection module and a power supply detection module to detect the optical and electrical signals in the corresponding optical path of the local optical device, thereby determining whether the power supply and optical path of the local optical device are normal.

[0012] If the power supply and optical path of the local optical equipment are normal, the controller outputs the corresponding control signal to the control terminals of the first and second optical switches, controlling the main contacts of the first and second optical switches to close, thus maintaining data transmission via the main path.

[0013] If the power supply and optical path of the local optical equipment are abnormal, the controller outputs the corresponding control signal to the control terminals of the first and second optical switches, controlling the backup contacts of the first and second optical switches to close and the main contacts to open, so that data can be transmitted through the backup path until the local station optical equipment and optical path are normal.

[0014] The system includes an optical signal transceiver unit and an optoelectronic signal conversion unit. This ensures that the optical signal is re-amplified after optical-to-electrical and then back to optical-to-electrical conversion, thus preventing interference with communication between the two stations. Simultaneously, electrical signal detection allows the system to determine the functionality of the optical path and, based on this determination, execute the appropriate strategy.

[0015] Furthermore, the first optical switch and the second optical switch are normally closed switches with a 2-to-1 selection, where the main contact is normally closed and the spare contact is normally open.

[0016] This solution uses a mechanical optical switch, with the main path connected to a normally closed circuit and the backup path connected to a normally open circuit. When the equipment itself fails, the main path defaults to being normally closed, without affecting the original optical path, thereby reducing the failure rate.

[0017] Furthermore, the photoelectric signal conversion unit is an integrated photoelectric transceiver module.

[0018] It has a simple structure and is easy to use.

[0019] Furthermore, the optical signal detection module is installed on the first photoelectric signal conversion unit and the second photoelectric signal conversion unit connected to the local optical device.

[0020] The optical signal detection module detects the working status of the photoelectric signal conversion unit and the condition of the optical fiber signal to detect whether there is a fault, which is beneficial to use.

[0021] Furthermore, the power supply detection module includes a voltage sensor, which is connected to the input power supply of the local optical device.

[0022] Voltage sensors collect power supply voltage signals and can detect faults by judging changes in power supply voltage.

[0023] Furthermore, it also includes a status indication module, the input of which is connected to the output of the controller.

[0024] The status indicator module displays the various signals output by the controller for easy viewing.

[0025] Furthermore, it also includes a data interface, which is connected to the controller.

[0026] The data interface allows connection to a host computer or monitoring equipment for data reading and control, facilitating operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the optical signal channel switching control device of this utility model. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] This utility model discloses an optical signal channel switching control device, such as Figure 1 As shown, this is applied to optical equipment, which includes local optical equipment, upstream optical equipment, and downstream optical equipment. Each optical equipment is equipped with a first optical signal transceiver unit and a second optical signal transceiver unit, including a first optical switch (optical switch 1), a second optical switch (optical switch 2), a first optoelectronic signal conversion unit (optical module 1), a second optoelectronic signal conversion unit (optical module 2), a power supply detection module, an optical signal detection module (such as KG-HSP series, TC-PT-10G-A type, and JW3328, etc.), and a controller. Preferably, the optoelectronic signal conversion unit is an integrated optoelectronic transceiver module.

[0032] The first optical transceiver unit of the local optical equipment (such as fiber optic transceivers, HFBR-1533 and LTDL-RX16P05, etc.) is electrically connected to the second optical transceiver unit of its upstream optical equipment through the main contact of the first optical switch, and the second optical transceiver unit of the local optical equipment is electrically connected to the first optical transceiver unit of its downstream optical equipment through the main contact of the second optical switch.

[0033] The first optoelectronic signal conversion unit is electrically connected to the second optical signal transceiver unit of the local upstream optical equipment through the spare contact of the first optical switch. The second optoelectronic signal conversion unit is electrically connected to the first optical signal transceiver unit of the local downstream optical equipment through the spare contact of the second optical switch. The first optoelectronic signal conversion unit and the second optoelectronic signal conversion unit are electrically connected.

[0034] The optical signal detection module is used to detect the optical signal in the corresponding optical path of the optical device, and the power supply detection module is used to collect the electrical signal of the optical device. The output terminals of the optical signal detection module and the power supply detection module are electrically connected to the controller, and the control signal output terminal of the controller is electrically connected to the control terminals of the first optical switch and the second optical switch.

[0035] The controller can use existing microcontrollers (MCUs), such as STM32F103RE and N32G452RE. It can also be equipped with multiple comparators (digital comparators, analog comparators, such as LM324 and LM339) and a threshold memory. The comparators compare the acquired data (optical signal and electrical signal) with the threshold value, thereby outputting control signals to control the corresponding switches.

[0036] For example, a voltage comparator and a voltage threshold memory. The first input terminal of the voltage comparator is electrically connected to the output terminal of the voltage sensor (i.e., the power supply detection module) (or it can be output after the digital-to-analog conversion module). The second input terminal of the voltage comparator is connected to the voltage threshold comparator. The voltage comparator compares the collected voltage value with the voltage threshold. When the collected voltage value is less than the voltage threshold, it indicates that there is a power supply failure in the optical path. The voltage comparator outputs a control signal to the control terminals of the first and second optical switches, controlling the backup contacts of the first and second optical switches to close and the main contacts to open, so that the backup path can transmit data until the local station optical equipment and optical path are normal.

[0037] Conversely, if the optical path power supply is normal, the voltage comparator outputs the corresponding control signal to the control terminals of the first and second optical switches, controlling the main contacts of the first and second optical switches to close, thus maintaining data transmission via the main path.

[0038] The optical signal detection module and the power supply detection module detect the optical and electrical signals in the corresponding optical path of the local optical device to determine whether the power supply and optical path of the local optical device are normal.

[0039] If the power supply and optical path of the local optical equipment are normal, the controller outputs the corresponding control signal to the control terminals of the first and second optical switches, controlling the main contacts of the first and second optical switches to close, thus maintaining data transmission via the main path.

[0040] If the power supply and optical path of the local optical equipment are abnormal, the controller outputs the corresponding control signal to the control terminals of the first and second optical switches, controlling the backup contacts of the first and second optical switches to close and the main contacts to open, so that data can be transmitted through the backup path until the local station optical equipment and optical path are normal.

[0041] The system includes an optical signal transceiver unit and an optoelectronic signal conversion unit. This ensures that the optical signal is re-amplified after optical-to-electrical and then back to optical-to-electrical conversion, thus preventing interference with communication between the two stations. Simultaneously, electrical signal detection allows the system to determine the functionality of the optical path and, based on this determination, execute the appropriate strategy.

[0042] In a preferred embodiment of this invention, the first and second optical switches are normally closed switches (2-to-1, i.e., 2-channel-to-1 selectable), with their main contacts normally closed and the spare contacts normally open. This design uses mechanical optical switches, with the main path connected to the normally closed channel and the spare path connected to the normally open channel. The main path defaults to the normally closed optical channel, ensuring that the default optical channel is not affected by equipment malfunctions. When the equipment itself fails, the main path defaults to normally closed, without affecting the original optical path, thereby reducing the failure rate.

[0043] In a preferred embodiment of this utility model, the optical signal detection module is installed on the first photoelectric signal conversion unit and the second photoelectric signal conversion unit connected to the local optical device.

[0044] The optical signal detection module detects the working status of the photoelectric signal conversion unit and the condition of the optical fiber signal to detect whether there is a fault, which is beneficial to use.

[0045] In a preferred embodiment of this utility model, the power supply detection module includes a voltage sensor (such as a MIK-DZV single-phase DC voltage sensor), and the voltage sensor is electrically connected to the input power supply of the local optical device.

[0046] Voltage sensors collect power supply voltage signals and can detect faults by judging changes in power supply voltage.

[0047] In a preferred embodiment of this utility model, the optical signal channel switching control device further includes a status indicator module, the input terminal of which is electrically connected to the output terminal of the controller. The status indicator module can be a display, an LED light, or an existing module such as HAW3-220S05A2C and IO-0002 CC V1.1.

[0048] The controller receives optical signals, electrical signals, main and backup channel status, equipment operating status, network status, and alarms, all of which are transmitted to the status indicator module for display. The status indicator module displays the various signals output by the controller for easy viewing.

[0049] In a preferred embodiment of this invention, the optical signal channel switching control device further includes a data interface (such as USB, HDMI, Type-C, etc.), which is electrically connected to the controller. The data interface allows connection to a host computer or monitoring equipment for data reading and control, facilitating operation.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical signal channel switching control device, applied to an optical device, the optical device including a local optical device, an upstream optical device, and a downstream optical device, each optical device being provided with a first optical signal transceiver unit and a second optical signal transceiver unit, characterized in that, The first optical switch, the second optical switch, the first optical-electrical signal mutual conversion unit, the second optical-electrical signal mutual conversion unit, the power supply detection module, the optical signal detection module and the controller are included. The first optical signal transceiver unit of the local optical device is connected with the second optical signal transceiver unit of the upstream optical device through the main contact of the first optical switch, and the second optical signal transceiver unit of the local optical device is connected with the first optical signal transceiver unit of the downstream optical device through the main contact of the second optical switch. The first optical-electrical signal mutual conversion unit is connected with the second optical signal transceiver unit of the local upstream optical device through the standby contact of the first optical switch, the second optical-electrical signal mutual conversion unit is connected with the first optical signal transceiver unit of the local downstream optical device through the standby contact of the second optical switch, and the first optical-electrical signal mutual conversion unit is connected with the second optical-electrical signal mutual conversion unit. The optical signal detection module is used for detecting the optical signal in the optical path corresponding to the optical device, the power supply detection module is used for collecting the electrical signal of the optical device, the output ends of the optical signal detection module and the power supply detection module are connected with the controller, and the control signal output end of the controller is connected with the control ends of the first optical switch and the second optical switch.

2. The optical signal path switching control device according to claim 1, wherein The first optical switch and the second optical switch are 2-to-1 normally closed switches, the main contact is in a normally closed state, and the standby contact is in a normally open state.

3. The optical signal path switching control device according to claim 1, wherein The optical-electrical signal mutual conversion unit is an optical-electrical transceiver integrated module.

4. The optical signal path switching control device according to claim 1, wherein The optical signal detection module is installed on the first optical-electrical signal mutual conversion unit and the second optical-electrical signal mutual conversion unit corresponding to the local optical device.

5. The optical signal path switching control device according to claim 1, wherein The power supply detection module includes a voltage sensor, and the voltage sensor is connected with the input power supply of the local optical device.

6. The optical signal path switching control device according to claim 1, wherein The state indication module is further included, and the input end of the state indication module is connected with the output end of the controller.

7. The optical signal path switching control device according to claim 1, wherein The data interface is further included, and the data interface is connected with the controller.

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