Signal channel switching device based on photoelectric conversion

Abstract

The utility model discloses a signal channel switching device based on photoelectric conversion, 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. Each optical signal transceiving unit is correspondingly provided with a photoelectric signal mutual conversion unit; a local optical device is connected with an upstream optical device through a first switch, the local optical device is connected with a downstream optical device through a second switch, and a second photoelectric signal mutual conversion unit of the local upstream optical device is connected with a first photoelectric signal mutual conversion unit of the downstream optical device through a third switch. The control signal output end of the controller is correspondingly connected with the control ends of the first switch, the second switch and the third switch. By adopting the technical scheme, the optical signal is amplified again after optical-to-electric-to-optical conversion, communication between two stations is not affected, switching is completed by switching the electric signal, and the switching time is shorter.

Description

Technical Field

[0001] This utility model belongs to the field of base station signal transmission technology and relates to a signal channel switching device based on photoelectric conversion. Background Technology

[0002] When an optical device loses power or malfunctions, its upstream and downstream optical devices need to be connected to ensure the continuity of the transmission line. However, it is difficult to switch the optical signal from the input fiber to a different output fiber. In addition, if the upstream and downstream optical devices are far apart, the optical loss is large, making it difficult to guarantee the effective operation of the transmission line.

[0003] 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.

[0004] Existing mechanical optical switches suffer from significant optical attenuation and lack optical amplification. When station B fails, the increased fiber optic distance at stations AC can lead to signal loss and connection failure. Mechanical optical switches rely on physical switching actions for transitions, resulting in longer switching times. Furthermore, they are ill-suited for detecting optical signals to determine if the optical path is functioning correctly. Utility Model Content

[0005] The purpose of this invention is to provide a signal channel switching device based on photoelectric conversion, which performs optical-to-electrical and electrical-to-optical conversion, and the optical signal is re-amplified without affecting the communication between the two stations. The switching is completed by switching the electrical signal, and the switching time is shorter.

[0006] To achieve the above objectives, the basic solution of this utility model is as follows: a signal channel switching device based on photoelectric conversion, applied to optical equipment, the optical equipment 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, the signal channel switching device comprising:

[0007] An optoelectronic signal conversion unit is provided corresponding to each optical signal transceiver unit;

[0008] The first optoelectronic signal conversion unit of the local optical device is connected to the second optoelectronic signal conversion unit of its upstream optical device through a first switch. The second optoelectronic signal conversion unit of the local optical device is connected to the first optoelectronic signal conversion unit of its downstream optical device through a second switch. The second optoelectronic signal conversion unit of the upstream local optical device and the first optoelectronic signal conversion unit of the downstream optical device are connected through a third switch.

[0009] It also includes an optical signal detection module, a power supply detection module, and a controller;

[0010] The optical signal detection module is used to detect the optical signal in the corresponding optical path of the local optical device, and the power supply detection module is used to collect the electrical signal of the local 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 switch, the second switch and the third 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 switch, the second switch and the third switch. The first switch and the second switch are closed, and the third switch is opened, so that data is transmitted through the main path.

[0013] If the power supply and optical path of the local optical equipment are abnormal, the controller outputs corresponding control signals to the control terminals of the first, second, and third switches. The first and second switches open, and the third switch closes, allowing data to be transmitted via the backup path until the local station's optical equipment and optical path are functioning normally. Switching is accomplished by switching electrical signals; electronic switches can typically complete switching in 600ns, resulting in even shorter switching times.

[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 photoelectric signal conversion unit is an integrated photoelectric transceiver module.

[0016] It has a simple structure and is easy to use.

[0017] Furthermore, the optical signal detection module is installed on the first and second photoelectric signal conversion units connected to the local optical device, the second photoelectric signal conversion unit of the upstream optical device, and the first photoelectric signal conversion unit of the downstream optical device.

[0018] 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.

[0019] Furthermore, the power supply detection module includes a voltage sensor, which is connected to the input power supply of the local optical device.

[0020] Voltage sensors collect power supply voltage signals and can detect faults by judging changes in power supply voltage.

[0021] Furthermore, it also includes a status indication module, the input of which is connected to the output of the controller.

[0022] The status indicator module displays the various signals output by the controller for easy viewing.

[0023] Furthermore, it also includes a data interface, which is connected to the controller.

[0024] The data interface allows connection to a host computer or monitoring equipment for data reading and control, facilitating operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the signal channel switching device based on photoelectric conversion of this utility model. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] This utility model discloses a signal channel switching device based on photoelectric conversion, 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 (such as fiber optic transceivers, HFBR-1533, and LTDL-RX16P05, etc.). The signal channel switching device includes an optoelectronic signal conversion unit corresponding to each optical signal transceiver unit. Preferably, the optoelectronic signal conversion unit is an integrated optoelectronic transceiver module.

[0030] The first optoelectronic signal conversion unit (optical module 2) of the local optical equipment (B-station optical equipment) is electrically connected to the second optoelectronic signal conversion unit (optical module 1) of its upstream optical equipment (A-station optical equipment) through the first switch (k1). The second optoelectronic signal conversion unit (optical module 3) of the local optical equipment is electrically connected to the first optoelectronic signal conversion unit (optical module 4) of its downstream optical equipment (C-station optical equipment) through the second switch (k2). The second optoelectronic signal conversion unit of the upstream local optical equipment and the first optoelectronic signal conversion unit of the downstream optical equipment are electrically connected through the third switch (k3).

[0031] The signal channel switching device also includes an optical signal detection module (such as KG-HSP series, TC-PT-10G-A type and JW3328, etc.), a power supply detection module and a controller. The optical signal detection module is used to detect the optical signal in the corresponding optical path of the local optical device, and the power supply detection module is used to collect the electrical signal of the local 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 corresponding control terminals of the first switch, the second switch and the third switch.

[0032] 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.

[0033] 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 switch, the second switch, and the third switch, controlling the first and second switches to open and the third switch to close, so that the backup path can transmit data until the local station optical equipment and optical path are normal.

[0034] Conversely, if the optical path power supply is normal, the voltage comparator outputs the corresponding control signal to the control terminals of the first, second, and third switches. The first and second switches are closed, and the third switch is open, maintaining data transmission from the main path.

[0035] During use, 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. If the power supply and optical path of the local optical device are normal, the controller outputs the corresponding control signals to the control terminals of the first switch, the second switch and the third switch. The first switch and the second switch are closed, and the third switch is opened, maintaining data transmission through the main path.

[0036] If the power supply or optical path of the local optical equipment is abnormal, the controller outputs corresponding control signals to the control terminals of the first, second, and third switches. The first and second switches open, and the third switch closes, allowing data to be transmitted via the backup path until the local station's optical equipment and optical path are functioning normally. Switching is accomplished by switching electrical signals; electronic switches can typically complete switching in 600ns, resulting in even shorter switching times.

[0037] 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.

[0038] In a preferred embodiment of this utility model, the optical signal detection module is electrically installed on the first and second photoelectric signal conversion units of the local optical device, the second photoelectric signal conversion unit of the upstream optical device, and the first photoelectric signal conversion unit of the downstream optical device, which are electrically connected to each other.

[0039] 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.

[0040] 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.

[0041] Voltage sensors collect power supply voltage signals and can detect faults by judging changes in power supply voltage.

[0042] In a preferred embodiment of this invention, the signal channel switching 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, or an existing module such as HAW3-220S05A2C or IO-0002 CC V1.1.

[0043] 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.

[0044] In a preferred embodiment of this invention, the signal channel switching 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.

[0045] 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.

[0046] 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. A signal channel switching device based on photoelectric conversion, applied to optical equipment, the optical equipment 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 signal channel switching device comprises: An optical-electrical signal interconversion unit corresponding to each optical signal transceiver unit; The first optical-electrical signal interconversion unit of the local optical equipment is connected with the second optical-electrical signal interconversion unit of the upstream optical equipment through a first switch, the second optical-electrical signal interconversion unit of the local optical equipment is connected with the first optical-electrical signal interconversion unit of the downstream optical equipment through a second switch, and the second optical-electrical signal interconversion unit of the upstream optical equipment is connected with the first optical-electrical signal interconversion unit of the downstream optical equipment through a third switch; Further comprising an optical signal detection module, a power supply detection module and a controller; The optical signal detection module is used for detecting the optical signal in the corresponding optical path of the local optical equipment, the power supply detection module is used for collecting the electrical signal of the local optical equipment, 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 switch, the second switch and the third switch.

2. The photoelectric conversion-based signal path switching device according to claim 1, wherein The optical-electrical signal interconversion unit is an optical-electrical transceiver integrated module.

3. The photoelectric conversion-based signal path switching device according to claim 1, wherein The optical signal detection module is installed on the first optical-electrical signal interconversion unit and the second optical-electrical signal interconversion unit corresponding to the local optical equipment, the second optical-electrical signal interconversion unit of the upstream optical equipment and the first optical-electrical signal interconversion unit of the downstream optical equipment.

4. The photoelectric conversion-based signal path switching device according to claim 1, wherein The power supply detection module comprises a voltage sensor, and the voltage sensor is connected with the input power supply of the local optical equipment.

5. The photoelectric conversion-based signal path switching device according to claim 1, wherein Further comprising a state indication module, and the input end of the state indication module is connected with the output end of the controller.

6. The photoelectric conversion-based signal path switching device according to claim 1, wherein Further comprising a data interface, and the data interface is connected with the controller.

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