Optical module TEC power-off protection method and optical module

Abstract

The invention relates to the technical field of optical signal communication, and discloses an optical module TEC power-off protection method and an optical module. The optical module TEC power-off protection method is applied to a monitoring unit, and specifically comprises the following steps: S101, receiving a monitoring request sent by a TEC controller, and determining the internal temperature of the current TEC; and S102, judging whether the internal temperature of the current TEC is within a preset optical module communication temperature threshold value or not, and if the internal temperature of the current TEC is within the preset optical module communication temperature threshold value, obtaining a corresponding power supply voltage signal of the current optical module according to the collected information. The TEC is monitored through the monitoring unit, whether the internal temperature of the current TEC is within the preset optical module communication temperature threshold value or not is judged, TEC power-off protection is started if the internal temperature of the current TEC is not within the preset optical module communication temperature threshold value, and then power supply voltage compensation of the optical module is carried out. The current optical module receives power supply voltage compensation and adjusts an output voltage signal, so that better circuit protection is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical signal communication, and in particular to an optical module TEC power-off protection method and an optical module. Background Art

[0002] With the development of new services and application models such as cloud computing, mobile Internet, and video, the development and progress of optical communication technology has become increasingly important. In optical communication technology, optical modules are tools for realizing the mutual conversion of photoelectric signals and are one of the key components in optical communication equipment. In addition, with the development of optical communication technology, the transmission rate of optical modules continues to increase.

[0003] To ensure the optical transmission power, the optical transmission device of the optical module includes TEC (semiconductor cooler) for dissipating the heat of optoelectronic devices such as lasers and photodiodes. In order to control the switching of TEC, a TEC controller is provided on the circuit board and electrically connected to TEC. Once the optical module is powered off, the output current of the TEC controller to the TEC increases for a short time, that is, current overshoot occurs. The current value output by the TEC controller suddenly increases or even exceeds the rated current of TEC, affecting the service life of TEC and making it impossible to guarantee the stability of signal transmission in the optical module. Summary of the invention

[0004] The purpose of the present invention is to provide an optical module TEC power-off protection method and an optical module, so as to realize that the current optical module receives power supply voltage compensation and adjusts the output voltage signal, thereby achieving better circuit protection, avoiding the voltage difference in TEC causing current overshoot that affects the service life of TEC, and improving the stability of the optical module. It aims to solve the problem in the prior art that the current value output by the TEC controller suddenly increases in a short period of time or even exceeds the rated current of TEC, thereby affecting the service life of TEC.

[0005] The present invention is implemented in this way: the optical module TEC power-off protection method is applied to the monitoring unit and specifically includes the following steps:

[0006] S101: receiving a monitoring request sent by a TEC controller and determining the current internal temperature of the TEC;

[0007] S102: determining whether the current internal temperature of the TEC is within a preset optical module communication temperature threshold, and if the current internal temperature of the TEC is within the preset optical module communication temperature threshold, obtaining a corresponding power supply voltage signal of the current optical module according to the collected information;

[0008] S103: If the current internal temperature of the TEC is not within the preset optical module communication temperature threshold, the TEC power-off protection is started, and the current internal temperature of the TEC collected is compared with the preset TEC internal temperature threshold to obtain the current temperature difference value and feed it back to the TEC controller;

[0009] S104: The TEC controller receives the current temperature difference value, determines the power supply voltage compensation value of the optical module that needs to be adjusted under the current temperature difference value, and then sends it to the current optical module;

[0010] S105: The current optical module receives the power supply voltage compensation value and adjusts the output voltage signal, and then determines whether the internal temperature of the current TEC is within the preset optical module communication temperature threshold. If so, a control signal is output to the TEC controller to control the power supply to the TEC. If not, no control signal is sent.

[0011] Furthermore, in S101, receiving a monitoring request sent by the TEC controller includes:

[0012] Get the voltage signal value currently input by TEC;

[0013] Get the current signal value currently input by TEC;

[0014] The internal resistance value of the TEC is obtained according to the current voltage signal value input to the TEC and the current signal value input to the TEC.

[0015] Further, in S102, determining whether the current internal temperature of the TEC is within a preset optical module communication temperature threshold includes:

[0016] Acquire the internal temperature data of the current TEC, and input the internal temperature data into a preset threshold data recognition model;

[0017] A recognition result output by the threshold data recognition model based on the internal temperature data is obtained, and in the recognition result, it is determined whether the internal temperature data is in a preset threshold data recognition model.

[0018] Further, the internal temperature data is input into a preset threshold data recognition model, including:

[0019] Acquire threshold data recognition models of multiple stages, and sort the data intervals of the threshold data recognition models of the multiple stages in ascending order;

[0020] The internal temperature data of the current optical transmission module is acquired, and the internal temperature data is input into the threshold data recognition model ranked first.

[0021] Furthermore, in S103, the preset TEC internal temperature threshold is collected in the following manner:

[0022] Obtain the internal resistance value of TEC, and control the current value input to TEC to be constant by continuously adjusting the voltage signal value input to TEC, and record the TEC temperature;

[0023] Using the acquired data, a curve diagram of the voltage signal value inputted by the TEC and the change of the TEC temperature is drawn;

[0024] The maximum and minimum values ​​of the TEC temperature change are obtained, that is, the preset TEC internal temperature threshold is obtained.

[0025] Further, in S104, determining the power supply voltage compensation value of the optical module that needs to be adjusted under the current temperature difference value includes:

[0026] Obtaining the logical relationship between the current internal temperature of the TEC and the preset internal temperature threshold of the TEC, that is, the positive and negative relationship of the current temperature difference value obtained;

[0027] If the current internal temperature of the TEC is greater than the preset internal temperature threshold of the TEC, that is, the current temperature difference value obtained is a positive value, the power supply voltage compensation value is a positive value, and the power supply voltage signal output by the current optical module is adjusted down to meet the demand;

[0028] If the current internal temperature of the TEC is lower than the preset internal temperature threshold of the TEC, that is, the current temperature difference value is negative, the power supply voltage compensation value is positive, and the power supply voltage signal output by the current optical module is increased to meet the demand.

[0029] Further, in S105, the current optical module receives the power supply voltage compensation value and adjusts the output voltage signal, and then determines whether the internal temperature of the current TEC is within the preset optical module communication temperature threshold, including:

[0030] The current optical module receives the power supply voltage compensation value and completes the adjustment of the voltage output signal;

[0031] The monitoring unit monitors the current internal temperature of the TEC and compares it with a preset optical module communication temperature threshold. When the current internal temperature of the TEC is within the preset optical module communication temperature threshold, a control signal is output to the TEC controller to control the power supply to the TEC.

[0032] Compared with the prior art, the optical module TEC power-off protection method and optical module provided by the present invention have the following beneficial effects:

[0033] 1. The present application provides a method for power-off protection of an optical module TEC, which monitors the TEC by setting a monitoring unit to determine whether the current internal temperature of the TEC is within a preset optical module communication temperature threshold. If the current internal temperature of the TEC is not within the preset optical module communication temperature threshold, the TEC power-off protection is started, and then the power supply voltage compensation of the optical module is performed to realize the current optical module receiving power supply voltage compensation and adjusting the output voltage signal, thereby achieving better circuit protection, avoiding voltage difference in the TEC causing current overshoot that affects the service life of the TEC, and improving the stability of the optical module.

[0034] 2. Determine whether the current internal temperature of TEC is within the preset optical module communication temperature threshold. If so, output a control signal to the TEC controller to control the power supply to TEC, that is, monitor the internal temperature of TEC to ensure that the internal temperature of TEC is within the optical module communication temperature threshold before starting, thereby effectively avoiding the occurrence of serious circuit overload and heating, making the signal transmission of optical signals more stable and reducing the loss of optical signals during transmission.

[0035] An optical module, applied to the above-mentioned optical module TEC power-off protection method, the optical module comprises:

[0036] The MCU module is used to receive and process the monitoring data output by the monitoring unit, and send the monitoring data to the TEC protection interrupt circuit to complete the power-off protection, and send the monitoring data to the TEC controller to complete the restart of the TEC protection interrupt circuit;

[0037] A TEC controller, used for sending a monitoring request to the TEC protection interruption circuit, and outputting a control signal to control the power supply to the TEC;

[0038] The monitoring unit is used to collect the internal temperature of the TEC in the TEC protection interruption circuit and obtain the power supply voltage compensation value of the optical module.

[0039] Specifically, the MCU module includes:

[0040] An identification module, used for identifying the data signal transmitted by the monitoring unit;

[0041] A generation module, used to pre-process the identified data signal and generate a corresponding set of logical features;

[0042] A comparison module, used to compare the acquired current data with the preset data and obtain compensation data;

[0043] The output module is used to output the acquired compensation data to achieve the adjustment of the current optical module or TEC controller.

[0044] Specifically, the TEC controller includes:

[0045] A signal generating unit is used to confirm the data obtained by the MCU module and generate a control signal after the confirmation is completed;

[0046] The signal sending unit is used to send and output the control signal generated by the signal generating unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic flow chart of the optical module TEC power-off protection method proposed by the present invention;

[0048] Figure 2 A schematic flow chart of a method for collecting a preset TEC internal temperature threshold in the optical module TEC power-off protection method proposed by the present invention;

[0049] Figure 3 This is a schematic diagram of the structure of the optical module proposed by the present invention;

[0050] Figure 4 This is a schematic diagram of the structure of the MCU module in the optical module proposed by the present invention;

[0051] Figure 5 This is a schematic diagram of the structure of the TEC controller in the optical module proposed by the present invention. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0054] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0055] Reference Figure 1-2 As shown, the optical module TEC power-off protection method is applied to the monitoring unit and specifically includes the following steps:

[0056] S101: receiving a monitoring request sent by a TEC controller and determining the current internal temperature of the TEC;

[0057] The receiving of the monitoring request sent by the TEC controller includes:

[0058] Get the voltage signal value currently input by TEC;

[0059] Get the current signal value currently input by TEC;

[0060] According to the current voltage signal value input to the TEC and the current signal value input to the TEC, the internal resistance value of the TEC is obtained;

[0061] S102: determining whether the current internal temperature of the TEC is within a preset optical module communication temperature threshold, and if the current internal temperature of the TEC is within the preset optical module communication temperature threshold, obtaining a corresponding power supply voltage signal of the current optical module according to the collected information;

[0062] The process of determining whether the internal temperature of the current TEC is within a preset optical module communication temperature threshold includes:

[0063] Obtaining the internal temperature data of the current TEC, and inputting the internal temperature data into a preset threshold data recognition model;

[0064] Obtaining a recognition result outputted by the threshold data recognition model based on the internal temperature data, and determining in the recognition result whether the internal temperature data is within a preset threshold data recognition model;

[0065] S103: If the current internal temperature of the TEC is not within the preset optical module communication temperature threshold, the TEC power-off protection is started, and the current internal temperature of the TEC collected is compared with the preset TEC internal temperature threshold to obtain the current temperature difference value and feed it back to the TEC controller;

[0066] Among them, the preset TEC internal temperature threshold collection method is:

[0067] Obtain the internal resistance value of TEC, and control the current value input to TEC to be constant by continuously adjusting the voltage signal value input to TEC, and record the TEC temperature;

[0068] Using the acquired data, a curve diagram of the voltage signal value inputted by the TEC and the change of the TEC temperature is drawn;

[0069] The maximum and minimum values ​​of the TEC temperature change are obtained, that is, the preset TEC internal temperature threshold is obtained.

[0070] S104: The TEC controller receives the current temperature difference value, determines the power supply voltage compensation value of the optical module that needs to be adjusted under the current temperature difference value, and then sends it to the current optical module;

[0071] The power supply voltage compensation value of the optical module to be adjusted under the current temperature difference is determined, including:

[0072] Obtaining the logical relationship between the current internal temperature of the TEC and the preset internal temperature threshold of the TEC, that is, the positive and negative relationship of the current temperature difference value obtained;

[0073] If the current internal temperature of the TEC is greater than the preset internal temperature threshold of the TEC, that is, the current temperature difference value obtained is a positive value, the power supply voltage compensation value is a positive value, and the power supply voltage signal output by the current optical module is adjusted down to meet the demand;

[0074] If the current internal temperature of the TEC is lower than the preset internal temperature threshold of the TEC, that is, the current temperature difference value is negative, the power supply voltage compensation value is positive, and the power supply voltage signal output by the current optical module is increased to meet the demand.

[0075] S105: The current optical module receives the power supply voltage compensation value and adjusts the output voltage signal, and then determines whether the current internal temperature of TEC is within the preset optical module communication temperature threshold. If so, a control signal is output to the TEC controller to control the power supply to TEC. If not, no control signal is sent. The present application provides an optical module TEC power-off protection method, which monitors TEC by setting a monitoring unit to determine whether the current internal temperature of TEC is within the preset optical module communication temperature threshold. If the current internal temperature of TEC is not within the preset optical module communication temperature threshold, TEC power-off protection is started, and then power supply voltage compensation of the optical module is performed, so that the current optical module receives power supply voltage compensation and adjusts the output voltage signal, thereby achieving better circuit protection, avoiding voltage difference in TEC causing current overshoot that affects the service life of TEC, and improving the stability of the optical module.

[0076] In S102 of this embodiment, the internal temperature data is input into a preset threshold data recognition model, including:

[0077] Acquire threshold data recognition models of multiple stages, and sort the data intervals of the threshold data recognition models of multiple stages in ascending order;

[0078] The internal temperature data of the current optical transmission module is obtained, and the internal temperature data is input into the threshold data recognition model ranked first.

[0079] In S105 of this embodiment, the current optical module receives the power supply voltage compensation value and adjusts the output voltage signal, and then determines whether the internal temperature of the current TEC is within a preset optical module communication temperature threshold, including:

[0080] The current optical module receives the power supply voltage compensation value and completes the adjustment of the voltage output signal;

[0081] The monitoring unit monitors the current internal temperature of the TEC and compares it with a preset optical module communication temperature threshold. When the current internal temperature of the TEC is within the preset optical module communication temperature threshold, a control signal is output to the TEC controller to control the power supply to the TEC. It is determined whether the current internal temperature of the TEC is within the preset optical module communication temperature threshold. If so, a control signal is output to the TEC controller to control the power supply to the TEC, that is, the internal temperature of the TEC is monitored to ensure that the internal temperature of the TEC is within the optical module communication temperature threshold before starting, thereby effectively avoiding the occurrence of serious circuit overload and heating, making the signal transmission of the optical signal more stable and reducing the loss of the optical signal during transmission.

[0082] The present application provides an optical module TEC power-off protection method, which monitors the TEC by setting a monitoring unit to determine whether the current internal temperature of the TEC is within a preset optical module communication temperature threshold. If the current internal temperature of the TEC is not within the preset optical module communication temperature threshold, the TEC power-off protection is started, and then the power supply voltage compensation of the optical module is performed, so that the current optical module receives the power supply voltage compensation and adjusts the output voltage signal, thereby achieving better circuit protection, avoiding the voltage difference in the TEC causing current overshoot that affects the service life of the TEC, and improving the stability of the optical module.

[0083] Reference Figure 3-5 As shown, the optical module is applied to the above-mentioned optical module TEC power-off protection method, and the optical module includes: an MCU module, which is used to receive and process the monitoring data output by the monitoring unit, and send the monitoring data to the TEC protection interrupt circuit to complete the power-off protection, and send it to the TEC controller to complete the restart of the TEC protection interrupt circuit; the TEC controller is used to send a monitoring request to the TEC protection interrupt circuit, and output a control signal to control the power supply to the TEC; the monitoring unit is used to collect the internal temperature of the TEC in the TEC protection interrupt circuit and obtain the power supply voltage compensation value of the optical module. The present application monitors the TEC by setting a monitoring unit to determine whether the current internal temperature of the TEC is within the preset optical module communication temperature threshold. If the current internal temperature of the TEC is not within the preset optical module communication temperature threshold, the TEC power-off protection is started, and then the power supply voltage compensation of the optical module is performed, so that the current optical module receives the power supply voltage compensation and adjusts the output voltage signal, thereby achieving better circuit protection, avoiding the voltage difference in the TEC causing current overshoot to affect the service life of the TEC, and improving the stability of the optical module.

[0084] In this embodiment, the MCU module includes: an identification module for identifying the data signal transmitted by the monitoring unit; a generation module for preprocessing the identified data signal to generate a corresponding set of logical features; a comparison module for comparing the current data obtained with the preset data and obtaining compensation data; an output module for outputting the obtained compensation data to realize the adjustment of the current optical module or TEC controller.

[0085] In this embodiment, the TEC controller includes: a signal generating unit, which is used to confirm the data obtained by the MCU module and generate a control signal after the confirmation is completed; a signal sending unit, which is used to send and output the control signal generated by the signal generating unit. The technical solution determines whether the current internal temperature of the TEC is within the preset optical module communication temperature threshold. If so, a control signal is output to the TEC controller to control the power supply to the TEC, that is, the internal temperature of the TEC is monitored to ensure that the internal temperature of the TEC is within the optical module communication temperature threshold before starting, thereby effectively avoiding the occurrence of serious circuit overload and heating, making the signal transmission of the optical signal more stable and reducing the loss of the optical signal during transmission.

[0086] In this embodiment, the entire operation process can be controlled by a computer, and with the addition of a PLC, etc., automated operation control can be achieved. In each operation link, sensors can be set up to provide signal feedback to achieve sequential execution of steps. These are all common knowledge of current automated control and will not be described in detail in this embodiment.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The optical module TEC power-off protection method is characterized by: Applied to the monitoring unit, specifically including the following steps: S101: receiving a monitoring request sent by a TEC controller and determining the current internal temperature of the TEC; S102: determining whether the current internal temperature of the TEC is within a preset optical module communication temperature threshold, and if the current internal temperature of the TEC is within the preset optical module communication temperature threshold, obtaining a corresponding power supply voltage signal of the current optical module according to the collected information; S103: If the current internal temperature of the TEC is not within the preset optical module communication temperature threshold, the TEC power-off protection is started, and the current internal temperature of the TEC collected is compared with the preset TEC internal temperature threshold to obtain the current temperature difference value and feed it back to the TEC controller; S104: The TEC controller receives the current temperature difference value, determines the power supply voltage compensation value of the optical module that needs to be adjusted under the current temperature difference value, and then sends it to the current optical module; S105: The current optical module receives the power supply voltage compensation value and adjusts the output voltage signal, and then determines whether the internal temperature of the current TEC is within the preset optical module communication temperature threshold. If so, a control signal is output to the TEC controller to control the power supply to the TEC. If not, no control signal is sent.

2. The optical module TEC power-off protection method according to claim 1, characterized in that: In S101, a monitoring request sent by a TEC controller is received, including: Get the voltage signal value currently input by TEC; Get the current signal value currently input by TEC; The internal resistance value of the TEC is obtained according to the current voltage signal value input to the TEC and the current signal value input to the TEC.

3. The optical module TEC power-off protection method according to claim 2, characterized in that: In S102, determining whether the current internal temperature of the TEC is within a preset optical module communication temperature threshold includes: Acquire the internal temperature data of the current TEC, and input the internal temperature data into a preset threshold data recognition model; A recognition result output by the threshold data recognition model based on the internal temperature data is obtained, and in the recognition result, it is determined whether the internal temperature data is in a preset threshold data recognition model.

4. The optical module TEC power-off protection method according to claim 3, characterized in that: Inputting the internal temperature data into a preset threshold data recognition model includes: Acquire threshold data recognition models of multiple stages, and sort the data intervals of the threshold data recognition models of the multiple stages in ascending order; The internal temperature data of the current optical transmission module is acquired, and the internal temperature data is input into the threshold data recognition model ranked first.

5. The optical module TEC power-off protection method according to claim 2, characterized in that: In S103, the preset TEC internal temperature threshold is collected in the following manner: Obtain the internal resistance value of TEC, and control the current value input to TEC to be constant by continuously adjusting the voltage signal value input to TEC, and record the TEC temperature; Using the acquired data, a curve diagram of the voltage signal value inputted by the TEC and the change of the TEC temperature is drawn; The maximum and minimum values ​​of the TEC temperature change are obtained, that is, the preset TEC internal temperature threshold is obtained.

6. The optical module TEC power-off protection method according to claim 5, characterized in that: In S104, determining the power supply voltage compensation value of the optical module that needs to be adjusted under the current temperature difference value includes: Obtaining the logical relationship between the current internal temperature of the TEC and the preset internal temperature threshold of the TEC, that is, the positive and negative relationship of the current temperature difference value obtained; If the current internal temperature of the TEC is greater than the preset internal temperature threshold of the TEC, that is, the current temperature difference value obtained is a positive value, the power supply voltage compensation value is a positive value, and the power supply voltage signal output by the current optical module is adjusted down to meet the demand; If the current internal temperature of the TEC is lower than the preset internal temperature threshold of the TEC, that is, the current temperature difference value is negative, the power supply voltage compensation value is positive, and the power supply voltage signal output by the current optical module is increased to meet the demand.

7. The optical module TEC power-off protection method according to claim 6, characterized in that: In S105, the current optical module receives the power supply voltage compensation value and adjusts the output voltage signal, and then determines whether the internal temperature of the current TEC is within a preset optical module communication temperature threshold, including: The current optical module receives the power supply voltage compensation value and completes the adjustment of the voltage output signal; The monitoring unit monitors the current internal temperature of the TEC and compares it with a preset optical module communication temperature threshold. When the current internal temperature of the TEC is within the preset optical module communication temperature threshold, a control signal is output to the TEC controller to control the power supply to the TEC.

8. An optical module, characterized in that: The optical module TEC power-off protection method applied to any one of claims 1 to 7, wherein the optical module comprises: The MCU module is used to receive and process the monitoring data output by the monitoring unit, and send the monitoring data to the TEC protection interrupt circuit to complete the power-off protection, and send the monitoring data to the TEC controller to complete the restart of the TEC protection interrupt circuit; A TEC controller, used for sending a monitoring request to the TEC protection interruption circuit, and outputting a control signal to control the power supply to the TEC; The monitoring unit is used to collect the internal temperature of the TEC in the TEC protection interruption circuit and obtain the power supply voltage compensation value of the optical module.

9. The optical module according to claim 8, characterized in that: The MCU module includes: An identification module, used for identifying the data signal transmitted by the monitoring unit; A generation module, used to pre-process the identified data signal and generate a corresponding set of logical features; A comparison module, used to compare the acquired current data with the preset data and obtain compensation data; The output module is used to output the acquired compensation data to achieve the adjustment of the current optical module or TEC controller.

10. The optical module according to claim 9, characterized in that: The TEC controller comprises: A signal generating unit is used to confirm the data obtained by the MCU module and generate a control signal after the confirmation is completed; The signal sending unit is used to send and output the control signal generated by the signal generating unit.

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