A communication transmission optical module capable of self-detecting working status

Abstract

The utility model relates to the technical field of optical modules, and specifically to a communication transmission optical module with self-detection of working status. The utility model includes a transmitter, a receiver, a main control chip, a detection module, a control module, a communication module, an alarm module, and a power module. The detection module is used to detect the working status of the transmitter, and the control module can control the transmitter to stop emitting optical signals according to the instructions of the main control chip. The utility model has a compact circuit structure, and the optical module can control the transmitter to stop emitting optical signals according to the received feedback optical signal, thereby ensuring that optical resources will not be wasted and will not cause damage to another optical module connected thereto; when the optical module controls the transmitter to stop emitting optical signals, an indicator light is on, indicating that another optical module connected to the optical module has a reception failure, which can further help the staff locate the faulty optical module.

Description

Technical Field

[0001] The utility model relates to the technical field of optical modules, in particular to a communication transmission optical module capable of self-detecting a working state. Background Art

[0002] An optical module is an optoelectronic device that realizes the functions of photoelectric conversion or electro-optical conversion. It includes a transmitting component and a receiving component. The transmitter is responsible for converting electrical signals into optical signals, and the receiver is responsible for converting optical signals back into electrical signals. With the development of science and technology, optical communication technology has been widely used. In large data network centers, multiple optical modules are required between devices to meet different connection requirements. However, when one of these optical modules has a problem, it is more complicated for the staff to troubleshoot.

[0003] The Chinese utility model patent with the name of "A SFP optical module with a unit for detecting the operating status" and the publication number CN207946669U has been published. The utility model patent is equipped with a monitoring module, an MCU module, and an indication module to help the staff locate the faulty optical module and ensure that the faulty optical module is replaced in time. However, the monitoring module in the utility model only detects the internal temperature of the optical module and the abnormality of the transmitting component of the optical module, and does not detect the abnormality of the receiving component. If the receiving component cannot receive the optical signal, but the transmitting component transmits the optical signal as usual, not only will the data be unable to be read and processed, but it will also cause a waste of optical resources, and the continuous irradiation of the optical module will cause damage to another optical module connected to it. Utility Model Content

[0004] The purpose of the present application is to provide a communication transmission optical module with self-detection of working status, which solves the technical problem of the optical module self-detection of working status.

[0005] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0006] The utility model provides a communication transmission optical module with a self-detecting working state, comprising a transmitter and a receiver, wherein the transmitter of the first optical module sends an optical signal to the receiver of the second optical module, and the transmitter of the second optical module sends a feedback optical signal to the receiver of the first optical module, and is characterized in that: it also comprises a main control chip, a detection module, and a control module, and the main control chip is connected to the receiver, the detection module, and the control module respectively;

[0007] The detection module includes a differential amplifier circuit and a comparison circuit. The differential amplifier circuit is connected to the transmitter and is used to detect the voltage of the transmitter in real time, and at the same time send the voltage signal to the comparison circuit connected to the differential amplifier circuit. After comparison, the comparison circuit sends a control signal to the main control chip connected to the comparison circuit.

[0008] The receiver is connected to the main control chip, and after receiving the feedback optical signal, the receiver sends a control signal to the main control chip;

[0009] The control module includes a transmitter, a relay, and an indicator light. The relay is connected to the transmitter, the indicator light, and the main control chip respectively. Under normal working conditions, the transmitter transmits a light signal and the indicator light is off. When the main control chip receives the control signal from the receiver, the main control chip sends a control signal to the relay, the relay closes, the indicator light is on, and at the same time, the relay disconnects the power supply of the circuit where the transmitter is located.

[0010] In some embodiments, the detection module also includes a temperature detection circuit, and the temperature detection circuit is connected to the main control chip.

[0011] In some embodiments, a power module is also included, and the power module is respectively connected to the main control chip, the receiver, the detection module, and the control module.

[0012] In some embodiments, the comparison circuit includes a comparator and a filter circuit, and the filter circuit is connected to the comparator and the differential detection circuit respectively.

[0013] In some embodiments, the main control chip is connected to a communication module, and the main control chip of the first optical module communicates with the main control chip of the second optical module through the communication module.

[0014] In some embodiments, an alarm module is also included, and the alarm module is connected to the main control chip.

[0015] In some embodiments, the differential amplifier circuit includes an operational amplifier, the positive and negative input terminals of the operational amplifier are respectively connected to the positive and negative terminals of the transmitter, and can be used to detect the voltage across the transmitting tube.

[0016] The technical solution of the present application has at least the following advantages and beneficial effects:

[0017] The utility model has a compact circuit structure, and the optical module can control the transmitter to stop transmitting the optical signal according to the received feedback optical signal, thereby ensuring that the optical resource will not be wasted and will not cause damage to another optical module connected thereto; when the optical module controls the transmitter to stop transmitting the optical signal, the indicator light is on, indicating that a fault occurs in the receiver of another optical module connected to the optical module, which can further help the staff to locate the faulty optical module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a circuit diagram of a detection module of the utility model;

[0019] Figure 2 This is a schematic diagram of the control module circuit of the utility model;

[0020] Figure 3 This is a schematic diagram of the transmitter circuit of the utility model. DETAILED DESCRIPTION

[0021] 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.

[0022] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. If the terms "center", "upper", "lower", "inner", "outer", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the figure, or the orientation or position relationship in which the product of the application is usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. It should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Example

[0024] Please refer to Figure 1-Figure 3 The utility model provides a communication transmission optical module with self-detection working status, which is the same as the prior art and includes a transmitter and a receiver. The transmitter of the first optical module sends an optical signal to the receiver of the second optical module for data transmission; the transmitter of the second optical module sends a feedback optical signal to the receiver of the first optical module for feedback of the reception status of the second optical module;

[0025] Different from the prior art, the utility model includes a main control chip, a detection module, a communication module, and a control module, and the main control chip is connected to the detection module, the communication module, the control module, and the receiver respectively. The detection module is used to detect the working condition of the transmitter of the optical module and determine whether the transmitter has a short circuit or other faults; the communication module helps the main control chip of the first optical module to communicate with the main control chip of the second optical module. When the first optical module transmits an optical signal, its main control module transmits the signal to the main control chip of the second optical module through the communication module. After the main control chip of the second optical module receives the signal, it monitors the receiving condition of the second optical module. If the receiver does not receive the signal within the specified time, the main control chip of the second optical module controls the transmitter to transmit a feedback optical signal to the first optical module; the control module can control the transmitter that is transmitting the optical signal to stop working, avoiding the waste of optical resources, and while controlling the transmitter to notify the work, the control indicator light is turned on to remind the staff that another optical module connected to the optical module has a fault, helping the staff to quickly locate the faulty module.

[0026] It is worth noting that the communication module can be any one of a Bluetooth module and a WIFI module.

[0027] The utility model also includes a power module and an alarm module. The power module is used to supply power to each module in the optical module, and the alarm module helps the staff to locate the faulty optical module. The communication module, the power module, and the alarm module belong to the prior art and will not be described in detail here.

[0028] Furthermore, in the utility model, the detection module includes an operational amplifier U1, a comparator U3, resistors R2, R3, R4, R5, R6, R7, R8, R9, and a capacitor C1. One end of the resistor R2 is set as the IN1 input terminal, the other end of the resistor R2, one end of the resistor R3, and the positive input terminal of the operational amplifier U1 are connected, and the other end of the resistor R3 is grounded; one end of the resistor R4 and one end of the resistor R5 are connected, and an endpoint is set at this connection, and it is called the IN2 input terminal; the other end of the resistor R4, the negative input terminal of the operational amplifier U1, and one end of the resistor R6 are connected, the other end of the resistor R6, the output terminal of the operational amplifier U1, and one end of the resistor R8 are connected, the other end of the resistor R8, the negative input terminal of the comparator U3, and one end of the capacitor C1 are connected; one end of the resistor R7 is connected to the pin 4 of the comparator U3 and connected to the power supply, the other end of the resistor R7, the positive input terminal of the comparator U3, and one end of the resistor R9 are connected, the other end of the capacitor C1, the other end of the resistor R9, the other end of the resistor R5, and the pin 5 of the comparator U3 are connected and grounded, and the output terminal of the comparator U3 is connected to the PA1 pin of the main control chip.

[0029] In the detection module circuit, the differential detection circuit includes an operational amplifier U1 and resistors R2, R3, R4, R5, and R6; the RC filter circuit includes a resistor R8 and a capacitor C1; and the comparison circuit includes a comparator U3, resistors R7, and R9. The IN1 input terminal is connected to the positive electrode of the device under test, and the IN2 input terminal is connected to the negative electrode of the device under test. After the differential detection circuit receives the voltage signal, it differentially amplifies the voltage. The processed signal is transmitted to the comparison circuit for comparison after passing through the RC filter circuit. The comparison result signal is transmitted to the main control chip by the comparator U3. The device under test described here refers to the transmitter.

[0030] Furthermore, the control module includes a relay RLY1, a transmitter HJ2, an indicator light LED1, and resistors R10, R19, and R20. Pin 5 of the relay is connected to the power supply, pin 1 is connected to the PA3 pin of the main control chip, pin 2 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the positive electrode of the indicator light LED1, pin 3 of the relay is connected to one end of the resistor R19, and the other end of the resistor R19 is connected to the positive electrode of the transmitter HJ2, and an endpoint is set at this connection, which is called the IN1 output terminal; the negative electrode of the transmitter HJ2 is connected to one end of the resistor R20, and an endpoint is set at this connection, which is called the IN2 output terminal; the other end of the resistor R20, the negative electrode of the indicator light LED1, and pin 4 of the relay RLY1 are connected and grounded.

[0031] In the control module circuit, the positive terminal IN1 output terminal and the negative terminal IN2 output terminal of the transmitter HJ2 are respectively connected to the IN1 input terminal and the IN2 input terminal in the detection module circuit. When the transmitter HJ2 is in working state, when the relay RLY1 receives the instruction from the main control chip PA3 pin, the relay RLY1 is closed, the circuit where the transmitter HJ2 is located is powered off, and the circuit where the indicator LED1 is located is powered on.

[0032] The receiver includes a receiving diode D4, resistors R21 and R22, one end of the resistor R21 is connected to the power supply, and the other end is connected to the pin 2 of the receiving diode D4, the pin 1 of the receiving diode D4, one end of the resistor R22, and the PA2 pin of the main control chip are connected, and the other end of the resistor R22 is grounded. If the receiving diode D4 is not in a working state, the PA2 pin of the main control chip of the second optical module cannot receive a voltage signal within a specified time; after the specified time, the main control chip of the second optical module controls the transmitter to transmit a feedback optical signal to the receiver of the first optical module.

[0033] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution of the present invention, and the scope of the present invention is defined by the attached claims.

Claims

1. A communication transmission optical module with self-detection working status, comprising a transmitter and a receiver, wherein the transmitter of the first optical module sends an optical signal to the receiver of the second optical module, and the transmitter of the second optical module sends a feedback optical signal to the receiver of the first optical module, characterized in that: It also includes a main control chip, a detection module, and a control module, wherein the main control chip is connected to the receiver, the detection module, and the control module respectively; The detection module includes a differential amplifier circuit and a comparison circuit. The differential amplifier circuit is connected to the transmitter and is used to detect the voltage of the transmitter in real time, and at the same time send the voltage signal to the comparison circuit connected to the differential amplifier circuit. After comparison, the comparison circuit sends a control signal to the main control chip connected to the comparison circuit. The receiver is connected to the main control chip, and after receiving the feedback optical signal, the receiver sends a control signal to the main control chip; The control module includes a transmitter, a relay, and an indicator light. The relay is connected to the transmitter, the indicator light, and the main control chip respectively. Under normal working conditions, the transmitter transmits a light signal and the indicator light is off. When the main control chip receives the control signal from the receiver, the main control chip sends a control signal to the relay, the relay closes, the indicator light is on, and at the same time, the relay disconnects the power supply of the circuit where the transmitter is located.

2. A communication transmission optical module with self-detection working status according to claim 1, characterized in that: The detection module also includes a temperature detection circuit, which is connected to the main control chip.

3. A communication transmission optical module with self-detection working status according to claim 2, characterized in that: It also includes a power module, which is connected to the main control chip, the receiver, the detection module, and the control module respectively.

4. A communication transmission optical module with self-detection working status according to claim 1, characterized in that: The comparison circuit comprises a comparator and a filter circuit, and the filter circuit is connected to the comparator and the differential detection circuit respectively.

5. A communication transmission optical module with self-detection working status according to claim 1, characterized in that: The main control chip is connected to a communication module, and the main control chip of the first optical module communicates with the main control chip of the second optical module through the communication module.

6. A communication transmission optical module with self-detection working status according to claim 1, characterized in that: It also includes an alarm module, which is connected to the main control chip.

7. A communication transmission optical module with self-detection working status according to claim 1, characterized in that: The differential amplifier circuit includes an operational amplifier, the positive and negative input terminals of which are respectively connected to the positive and negative terminals of the transmitter, and can be used to detect the voltage across the transmitting tube.

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