System for realizing light-emitting protection based on pulse trigger signal detection

Abstract

The utility model relates to a system for realizing light-emitting protection based on pulse trigger signal detection, which comprises a signal acquisition module, a signal detection processing controller, a PUMP driving module and an SEED driving module, the output end of the signal acquisition module is connected with the signal detection processing controller, and the output end of the signal detection processing controller is respectively connected with the PUMP driving module and the SEED driving module. By adopting the system for realizing light-emitting protection based on pulse trigger signal detection, the function of automatically closing or opening the output of PUMP and SEED is realized by acquiring and monitoring the externally input trigger signal, and the failure of a laser seed source caused by the return of spontaneous radiation light of an active fiber is avoided.

Description

Technical Field

[0001] The utility model relates to the field of laser light sources, in particular to the field of optical fiber sensing, and specifically refers to a system for realizing luminous protection based on pulse trigger signal detection. Background Art

[0002] With the continuous development of technology, the requirements for pulse drive control of lasers are becoming higher and higher. As a result, the demand for stable, reliable and efficient control of lasers is also increasing. However, existing technologies often make it difficult to achieve accurate and reliable detection of pulse trigger signals, which may cause damage to equipment or devices. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a system for realizing luminous protection based on pulse trigger signal detection, which meets the requirements of stability, reliability, high-efficiency control and a wide range of applications.

[0004] In order to achieve the above-mentioned purpose, the system for realizing luminous protection based on pulse trigger signal detection of the utility model is as follows:

[0005] The system for realizing luminous protection based on pulse trigger signal detection has the following main features: the system includes a signal acquisition module, a signal detection and processing controller, a PUMP drive module and a SEED drive module; the signal acquisition module receives an external input Trigger pulse signal; the output end of the signal acquisition module is connected to the signal detection and processing controller; the output end of the signal detection and processing controller is respectively connected to the PUMP drive module and the SEED drive module.

[0006] Preferably, the signal detection and processing controller includes a signal detection unit, a signal processing unit and a signal control unit, and the signal detection unit, signal processing unit and signal control unit are connected in sequence, the input end of the signal detection unit is connected to the signal acquisition module, and the output end of the signal control unit is respectively connected to the PUMP drive module and the SEED drive module.

[0007] Preferably, the system further comprises a PUMP output module, the input end of the PUMP output module being connected to the output end of the PUMP driving module.

[0008] Preferably, the system further comprises a SEED output module, the input end of the SEED output module is connected to the output end of the SEED driving module.

[0009] Preferably, when the signal acquisition module acquires the external input Trigger signal and the signal detection and processing controller detects that the interval of the Trigger pulse signal is greater than the set time, the PUMP drive module turns off the PUMP output, and the SEED drive module can selectively turn off the SEED output.

[0010] Preferably, the signal acquisition module comprises a trigger, a CP end of the trigger receives an external Trigger signal, and a Q end of the trigger is connected to an input end of a signal detection and processing controller.

[0011] Preferably, the signal acquisition module also includes an input capacitor C19, a fifth resistor RI5, a sixth resistor RI6, a seventh resistor RI7, a tenth capacitor CI10, an eleventh resistor RI11 and a ninth resistor RI9, the input capacitor CI9 is ​​connected to an external Trigger signal input terminal, the fifth resistor RI5 is connected to the seventh resistor RI7, the other end of the fifth resistor RI5 is connected to a power supply, the other end of the seventh resistor RI7 is grounded, the sixth resistor RI6 is connected to the other end of the input capacitor CI9 and the middle point between the fifth resistor RI5 and the seventh resistor RI7, the other end of the sixth resistor RI6 is connected to the first pin of the trigger, one end of the tenth capacitor CI10 is connected to the first pin of the trigger, and the other end is grounded, and the sixth pin and the seventh pin of the trigger are respectively connected to the power supply through the eleventh resistor RI11 and the ninth resistor RI9.

[0012] The system of the utility model for realizing luminous protection based on pulse trigger signal detection is adopted, and the function of automatically turning off or turning on the output of PUMP and SEED is realized by collecting and monitoring the trigger signal input externally, so as to avoid the failure of the laser seed source caused by the return of the active fiber spontaneous radiation light. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1a It is a schematic diagram of a signal acquisition module of a system for realizing luminous protection based on pulse trigger signal detection of the present invention.

[0014] Figure 1b The input signal waveform diagram of the utility model and the Figure 1a Schematic diagram of the signal waveform after the module structure.

[0015] Figure 2 This is a control principle block diagram of a system for realizing luminous protection based on pulse trigger signal detection of the utility model. DETAILED DESCRIPTION

[0016] In order to more clearly describe the technical content of the present invention, further description is given below in conjunction with specific embodiments.

[0017] The utility model discloses a system for realizing luminous protection based on pulse trigger signal detection, which includes a signal acquisition module, a signal detection and processing controller, a PUMP driving module and a SEED driving module. The signal acquisition module receives an external input Trigger pulse signal, and the output end of the signal acquisition module is connected to the signal detection and processing controller, and the output end of the signal detection and processing controller is respectively connected to the PUMP driving module and the SEED driving module.

[0018] As a preferred embodiment of the present utility model, the signal detection and processing controller includes a signal detection unit, a signal processing unit and a signal control unit. The signal detection unit, the signal processing unit and the signal control unit are connected in sequence. The input end of the signal detection unit is connected to the signal acquisition module, and the output end of the signal control unit is respectively connected to the PUMP driving module and the SEED driving module.

[0019] As a preferred embodiment of the present utility model, the system further comprises a PUMP output module, and the input end of the PUMP output module is connected to the output end of the PUMP driving module.

[0020] As a preferred embodiment of the present utility model, the system further comprises a SEED output module, and the input end of the SEED output module is connected to the output end of the SEED driving module.

[0021] As a preferred embodiment of the present utility model, when the signal acquisition module collects the external input Trigger signal and the signal detection and processing controller detects that the Trigger pulse signal interval is greater than the set time, the PUMP drive module turns off the PUMP output, and the SEED drive module can selectively turn off the SEED output.

[0022] As a preferred embodiment of the present invention, the signal acquisition module includes a trigger, the CP end of the trigger receives an external Trigger signal, and the Q end of the trigger is connected to the input end of the signal detection and processing controller.

[0023] As a preferred embodiment of the utility model, the signal acquisition module also includes an input capacitor C19, a fifth resistor RI5, a sixth resistor RI6, a seventh resistor RI7, a tenth capacitor CI10, an eleventh resistor RI11 and a ninth resistor RI9, the input capacitor CI9 is ​​connected to an external Trigger signal input terminal, the fifth resistor RI5 is connected to the seventh resistor RI7, the other end of the fifth resistor RI5 is connected to a power supply, the other end of the seventh resistor RI7 is grounded, the sixth resistor RI6 is connected to the other end of the input capacitor CI9 and the midpoint between the fifth resistor RI5 and the seventh resistor RI7, the other end of the sixth resistor RI6 is connected to the first pin of the trigger, one end of the tenth capacitor CI10 is connected to the first pin of the trigger, and the other end is grounded, and the sixth pin and the seventh pin of the trigger are respectively connected to the power supply through the eleventh resistor RI11 and the ninth resistor RI9.

[0024] In a specific implementation of the utility model, the luminous protection system based on pulse trigger signal detection of the utility model includes a signal acquisition module, a signal detection and processing controller, a PUMP drive module and a SEED drive module, the signal acquisition module receives an input Trigger pulse signal, the output end of the signal acquisition module is connected to the signal detection and processing controller, and the output end of the signal detection and processing controller is connected to the PUMP drive module and the SEED drive module.

[0025] The circuit structure also includes a PUMP output module, and the input end of the PUMP output module is connected to the output end of the PUMP driving module.

[0026] The circuit structure further comprises a SEED output module, the input end of the SEED output module is connected to the output end of the SEED driving module.

[0027] The signal acquisition module acquires the external input Trigger signal. When the signal detection and processing controller detects that the interval of the Trigger pulse signal is greater than the set time, the PUMP driving module turns off the PUMP output and the SEED driving module turns off the SEED output.

[0028] The signal acquisition module comprises a trigger, a CP end of the trigger receives an external Trigger signal, and a Q end of the trigger is connected to an input end of a signal detection and processing controller.

[0029] The signal acquisition module also includes an input capacitor C19, a fifth resistor R15, a sixth resistor R16, a seventh resistor R17, a tenth capacitor C110, an eleventh resistor R111 and a ninth resistor R19, the input capacitor C19 is connected to an external Trigger signal input terminal, the fifth resistor R15 is connected to the seventh resistor R17, the other end of the fifth resistor R15 is connected to a power supply, the other end of the seventh resistor R17 is grounded, the sixth resistor R16 is connected to the other end of the input capacitor C19 and the middle point of the fifth resistor R15 and the seventh resistor R17, the other end of the sixth resistor R16 is connected to the first pin of the trigger, one end of the tenth capacitor C110 is connected to the first pin of the trigger, and the other end is grounded, and the sixth pin and the seventh pin of the trigger are connected to the power supply through the eleventh resistor R111 and the ninth resistor R19 respectively.

[0030] In the specific implementation of the utility model, a luminescence protection system based on pulse trigger signal detection is disclosed, which automatically shuts down the PUMP output and SEED output by collecting and monitoring the external input Trigger signal, thereby preventing the return of the active fiber spontaneous radiation light from causing the laser seed source to fail. This design protects the laser light source by accurately collecting the pulse Trigger signal.

[0031] The utility model discloses a luminous protection system based on pulse trigger signal detection, which performs detection and sampling functions on an external input Trigger pulse signal. If the external input Trigger signal is lost, the product laser is protected.

[0032] As shown in FIG1 , it is an input trigger pulse signal detection sampling circuit.

[0033] When the signal detection and processing controller detects that the interval of the Trigger pulse signal is greater than the set time, it issues a corresponding instruction to turn off the PUMP output and SEED output. The Trigger signal acquisition mainly uses the 74AUP1G74DC-Q100H trigger.

[0034] The input capacitor CI9 has a capacitance of 51pF to 1000pF, and the coupled input of the Trigger signal to pin 1 of 74AUP1G74DC-Q100H is used as the chip clock signal input;

[0035] RI5 and RI7 resistors are 1K~10K, which adjust the DC component of the chip clock signal at pin 1 of 74AUP1G74DC-Q100H;

[0036] RI6 resistor 1K~10K, CI10 capacitance 51pF~1000pF, delay the trigger signal;

[0037] The 6th and 7th pins of 74AUP1G74DC-Q100H are pulled up to 3.3V by 1K resistors RI9 and RI11 to configure the chip working mode.

[0038] The output signal of pin 3 of 74AUP1G74DC-Q100H is delayed by RI8 with a resistance of 1K and CI11 with a capacitance of 51pF~1000pF before returning to pin 2 of the chip, thus realizing a two-frequency division circuit, so that the square wave signal output from pin 5 of the chip meets the resolution that can be measured by the MCU.

[0039] The specific implementation scheme of this embodiment can refer to the relevant description in the above embodiment, which will not be repeated here.

[0040] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0041] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0042] Any process or method description in the flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0043] It should be understood that the various parts of the utility model can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution device. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0044] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the corresponding program may be stored in a computer-readable storage medium, which, when executed, includes one of the steps of the method embodiment or a combination thereof.

[0045] In addition, each functional unit in each embodiment of the utility model can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into one module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0046] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The system of the utility model for realizing luminous protection based on pulse trigger signal detection is adopted, and the function of automatically turning off or turning on the output of PUMP and SEED is realized by collecting and monitoring the trigger signal input externally, so as to avoid the failure of the laser seed source caused by the return of the active fiber spontaneous radiation light.

[0049] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the description and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A system for realizing luminous protection based on pulse trigger signal detection, characterized in that: The system includes a signal acquisition module, a signal detection and processing controller, a PUMP drive module and a SEED drive module. The signal acquisition module receives an external input Trigger pulse signal. The output end of the signal acquisition module is connected to the signal detection and processing controller. The output end of the signal detection and processing controller is respectively connected to the PUMP drive module and the SEED drive module.

2. The system for realizing luminous protection based on pulse trigger signal detection according to claim 1, characterized in that: The signal detection and processing controller includes a signal detection unit, a signal processing unit and a signal control unit. The signal detection unit, the signal processing unit and the signal control unit are connected in sequence. The input end of the signal detection unit is connected to the signal acquisition module, and the output end of the signal control unit is respectively connected to the PUMP driving module and the SEED driving module.

3. The system for realizing luminous protection based on pulse trigger signal detection according to claim 1, characterized in that: The system also includes a PUMP output module, the input end of the PUMP output module is connected to the output end of the PUMP driving module.

4. The system for realizing luminous protection based on pulse trigger signal detection according to claim 1, characterized in that: The system further comprises a SEED output module, the input end of the SEED output module is connected to the output end of the SEED driving module.

5. The system for realizing luminous protection based on pulse trigger signal detection according to claim 1, characterized in that: When the signal acquisition module acquires the external input Trigger signal and the signal detection and processing controller detects that the interval of the Trigger pulse signal is greater than the set time, the PUMP driving module turns off the PUMP output, and the SEED driving module can selectively turn off the SEED output.

6. The system for realizing luminous protection based on pulse trigger signal detection according to claim 1, characterized in that: The signal acquisition module comprises a trigger, a CP end of the trigger receives an external Trigger signal, and a Q end of the trigger is connected to an input end of a signal detection and processing controller.

7. The system for realizing luminous protection based on pulse trigger signal detection according to claim 1, characterized in that: The signal acquisition module also includes an input capacitor C19, a fifth resistor RI5, a sixth resistor RI6, a seventh resistor RI7, a tenth capacitor CI10, an eleventh resistor RI11 and a ninth resistor RI9. The input capacitor CI9 is ​​connected to an external Trigger signal input terminal, the fifth resistor RI5 is connected to the seventh resistor RI7, the other end of the fifth resistor RI5 is connected to a power supply, the other end of the seventh resistor RI7 is grounded, the sixth resistor RI6 is connected to the other end of the input capacitor CI9 and the middle point between the fifth resistor RI5 and the seventh resistor RI7, the other end of the sixth resistor RI6 is connected to the first pin of the trigger, one end of the tenth capacitor CI10 is connected to the first pin of the trigger, and the other end is grounded, and the sixth pin and the seventh pin of the trigger are respectively connected to the power supply through the eleventh resistor RI11 and the ninth resistor RI9.

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