Laser main control board performance test system and test tool

Abstract

The invention discloses a laser main control board performance test system and a test tool, and relates to the technical field of laser testing, and the system comprises a power supply simulation input circuit, an upper computer simulation control circuit, a light emitting simulation feedback circuit, a light emitting detection circuit and a signal processing circuit. The power supply simulation input circuit simulates the power supply input of a real laser, the upper computer simulation control circuit simulates and controls the upper computer of the real laser, and the light output simulation feedback circuit simulates the light output and feedback of the real laser, so that the to-be-tested main control board works. A light-emitting control signal is generated and post-processing is carried out based on a light-emitting feedback signal, then light-emitting power and an output power feedback signal of the simulation laser are collected through a light-emitting detection circuit, signal processing is carried out through a signal processing circuit, and a test result is obtained and displayed. According to the invention, the simulation laser is constructed based on the to-be-tested main control board and a simple circuit structure, so that the rapid performance of the main control board can be tested.

Description

Technical Field

[0001] The present application relates to the technical field of laser testing, and in particular to a laser main control board performance testing system and testing tooling. Background Art

[0002] As the power and performance of lasers gradually increase, more and higher requirements are put forward for laser technical indicators and test items. In order to meet the development needs of lasers, the main control board is also being developed and updated continuously, and the electrical performance test of lasers is also being updated and improved. At present, the way to test the electrical performance of lasers in external control mode is to use laser test equipment to test the real laser of the main control board to be tested after the installation of the update and upgrade. Specifically, the laser is connected to the test equipment through the external control signal line, and the test equipment is used to control the laser, so that various tests are carried out when the laser is in external control mode. The problem in this process is that the main control board must be installed in a real laser, and the optimized and upgraded main control board cannot be tested separately. In addition, it is impossible to input complex signals in multiple modes and synchronously monitor the status of all output signals of the laser, and it is impossible to meet the testing requirements of the increasingly complex electrical performance test items of the corresponding external control. In addition, the external control signal lines are not fixed and integrated, and the number and type of signals at the wiring terminals are large, which may cause collisions between the wiring terminals and cause short circuits, which is not conducive to operation and experiments. Especially in harsh environments such as production lines, there are safety hazards and affect test efficiency. Summary of the invention

[0003] The main purpose of this application is to provide a laser main control board performance test system and test tooling, aiming to solve the technical problems in the related technology that the main control board and the laser used in it cannot meet the complex performance test requirements, and the test has safety hazards and low test efficiency.

[0004] To achieve the above purpose, the present application proposes a laser main control board performance test system, comprising:

[0005] The power simulation input circuit is connected to the main control board to be tested, and is used to simulate the power input of a real laser, and provide a power signal to the main control board to be tested, so that the main control board to be tested works;

[0006] The host computer simulation control circuit is connected to the main control board to be tested, and is used to simulate the host computer that controls the real laser, and send control instructions to the main control board to be tested, so that the main control board to be tested generates a light control signal;

[0007] The light emission simulation feedback circuit is connected to the main control board to be tested, and is used to simulate the light emission and light emission feedback of a real laser, generate a light emission current according to the light emission control signal output by the main control board to be tested, and detect the light emission current to obtain a light emission feedback signal, and send it to the main control board to be tested, so that the main control board to be tested performs post-processing;

[0008] The light output detection circuit is connected to the light output simulation feedback circuit, and is used to collect the light output power of the simulated laser and output a power feedback signal;

[0009] The signal processing circuit is connected to the light detection circuit and is used to perform signal processing according to the power feedback signal to obtain and display the test results.

[0010] In one embodiment, the system further comprises:

[0011] The panel simulation operation circuit is connected to the main control board to be tested, and is used to simulate the front panel of a real laser, send operation instructions to the main control board to be tested, manually control the simulated laser, and display the operating status of the simulated laser in real time according to the display control signal output by the main control board to be tested.

[0012] In one embodiment, the power supply analog input circuit includes:

[0013] The voltage conversion module is used to step down the received power supply voltage and output working voltages of different voltage values ​​to supply power to various circuits or modules in the system;

[0014] The first male socket module is connected to the main control board to be tested;

[0015] A first switching module is connected to the first male socket module, and is used to turn on or off the ACDC power supply of the analog laser, and output a first state signal to the main control board to be tested;

[0016] A second switching module is connected to the first male socket module, and is used to turn on or off the DCDC power supply of the analog laser, and output a second state signal to the main control board to be tested;

[0017] The power state module is connected to the first male socket module and is used to receive the indication control signal output by the main control board to be tested to indicate the power-on state of the analog laser.

[0018] In one embodiment, the host computer simulation control circuit includes:

[0019] The second male socket module is connected to the main control board to be tested;

[0020] The switch module is connected to the second male socket module and is used to simulate multiple switches of the host computer, and send switch simulation signals to the main control board to be tested, so that the main control board to be tested generates different light output control signals accordingly, so that the simulated laser has different light output modes;

[0021] The switch state module is connected to the second male socket module and is used to receive the indication control signal output by the main control board to be tested to indicate multiple light output states of the simulated laser.

[0022] In one embodiment, the light output analog feedback circuit includes:

[0023] The signal generating module is connected to the main control board to be tested and is used to generate a modulation signal using a signal generator to provide a test signal source for the main control board to be tested;

[0024] The optical power simulation current module is connected to the main control board to be tested, and is used to generate and adjust the optical current according to the optical control signal output by the main control board to be tested, and to detect the optical current to obtain the optical feedback signal, and send it to the main control board to be tested, so that the main control board to be tested performs post-processing;

[0025] The red light simulation module is connected to the main control board to be tested and is used to collect and adjust the red light current of the simulated laser to simulate the red light emission of the real laser;

[0026] The scattered light simulation module is connected to the main control board to be tested, and is used to simulate the burning of the internal optical components of the optical module of the real laser, and output a first simulation signal to the main control board to be tested, so as to test the scattered light alarm function of the main control board to be tested;

[0027] The laser temperature simulation module is connected to the main control board to be tested, and is used to simulate the temperature changes of the water cooling plate, beam combining module and output optical cable head in the real laser, and output a second simulation signal to the main control board to be tested to test the abnormal temperature alarm function of the water cooling plate, beam combining module and output optical cable head of the main control board to be tested.

[0028] In one embodiment, the light detection circuit includes:

[0029] The optical power detection module is connected to the light output simulation feedback circuit, and is used to collect the light output power of the simulated laser and output a sampling voltage;

[0030] The optical power feedback module is connected to the optical power detection module and the signal processing circuit respectively, and is used to isolate and amplify the sampled voltage and output a power feedback signal to the signal processing circuit.

[0031] In one embodiment, the system further comprises:

[0032] The optical protection circuit is connected to the optical power detection module and the main control board to be tested respectively, and is used to perform power anomaly detection and light anomaly detection according to the sampled voltage, so as to provide power protection and light protection through the main control board to be tested.

[0033] In one embodiment, the optical protection circuit comprises:

[0034] A first comparison module, connected to the optical power detection module, for comparing the sampled voltage with a preset reference voltage and outputting a first comparison signal;

[0035] A second comparison module, connected to the optical power detection module, is used to amplify and compare the sampled voltage and output a second comparison signal;

[0036] The main control board to be tested includes a logic processing module, which is respectively connected to the first comparison module and the second comparison module, and is used to perform power anomaly detection according to the first comparison signal and perform light output anomaly detection according to the second comparison signal, thereby providing power protection and light output protection for the simulated laser.

[0037] In one embodiment, the signal processing circuit comprises:

[0038] The light output adjustment module is connected to the host computer analog control circuit, and is used to generate an analog signal, and output it to the main control board to be tested through the host computer analog control circuit to adjust the light output power of the analog laser;

[0039] The AD sampling module is connected to the light output adjustment module and the light output detection circuit respectively, and is used to sample the analog signal to obtain a first sampling signal, and amplify the power feedback signal to obtain a second sampling signal;

[0040] A processor module, connected to the AD sampling module, is used to process the first sampling signal and the second sampling signal, obtain a test result, and output a display driving signal;

[0041] The result display module is connected to the processor module and is used to drive the LED display component to display the test results according to the display drive signal.

[0042] In addition, to achieve the above-mentioned purpose, the present application also proposes a laser main control board performance testing tool, including the laser main control board performance testing system as described above.

[0043] One or more technical solutions proposed in this application have at least the following technical effects:

[0044] A laser main control board performance test system is proposed. The power input of a real laser is simulated by a power simulation input circuit, and a power signal is provided to the main control board to be tested, so that the main control board to be tested works. The host computer simulation control circuit simulates the host computer that controls the real laser, and sends control instructions to the main control board to be tested, so that the main control board to be tested generates a light control signal. The light emission and light emission feedback of the real laser are simulated by the light emission simulation feedback circuit. The light emission current is generated according to the light emission control signal output by the main control board to be tested, and the light emission feedback signal is obtained by detecting the light emission current and sent to the main control board to be tested, so that the main control board to be tested performs post-processing, and a simulated laser is built; the light emission detection circuit collects the light emission power of the simulated laser, outputs the power feedback signal, and is processed by the signal processing circuit. Signal processing, test results are obtained and displayed; in this system, a simulated laser is constructed based on the main control board to be tested and a simple circuit structure. There is no need to install the main control board to be tested on the real laser or connect other external control devices for testing. It can input complex signals in multiple modes and synchronously monitor the status of all output signals of the laser, which can meet the test requirements of the increasingly complex electrical performance test items of the corresponding external control. The signal lines in the system have been fixed and integrated, which effectively avoids safety hazards such as short circuits caused by too many wiring terminals and problems that affect test efficiency, and achieves the effect of quick performance testing of the main control board based on the simulated laser; at the same time, the system can be applied to the test environment of various lasers based on different control boards, which improves the test adaptability and integration of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0047] Figure 1 This is a system block diagram of an embodiment of a laser main control board performance test system of the present application;

[0048] Figure 2 This is a system block diagram of another embodiment of the laser main control board performance test system of the present application;

[0049] Figure 3 A schematic diagram of the principle of a power supply simulation input circuit provided in another embodiment of the laser main control board performance test system of the present application;

[0050] Figure 4 A schematic diagram of the principle of the host computer simulation control circuit provided by another embodiment of the laser main control board performance test system of the present application;

[0051] Figure 5 A schematic diagram of the principle of a light output simulation feedback circuit provided by another embodiment of the laser main control board performance test system of the present application;

[0052] Figure 6 A schematic diagram of the principle of a panel simulation operation circuit provided in another embodiment of the laser main control board performance test system of the present application;

[0053] Figure 7 This is a system block diagram of another embodiment of the laser main control board performance test system of the present application;

[0054] Figure 8 A schematic diagram of the principle of an optical power detection module and an optical protection circuit provided in another embodiment of the laser main control board performance test system of the present application;

[0055] Fig. 9 A schematic diagram of the principle of an optical power feedback module provided in another embodiment of the laser main control board performance test system of the present application;

[0056] Fig.10 A schematic diagram of the principle of a light output adjustment module and an AD sampling module provided in another embodiment of the laser main control board performance test system of the present application;

[0057] Fig.11 A schematic diagram of a processor module provided for another embodiment of the laser main control board performance test system of the present application;

[0058] Fig.12 A schematic diagram of the principle of a result display module provided in yet another embodiment of the laser main control board performance test system of the present application.

[0059] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application, the directional indication is only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. In addition, if there are descriptions of "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, scheme B, or schemes that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0062] As the power and performance of lasers gradually increase, more and higher requirements are put forward for laser technical indicators and test items. In order to meet the development needs of lasers, the main control board is also being continuously developed and updated, and the electrical performance test of lasers is also being continuously updated and improved.

[0063] At present, the way to test the electrical performance of the main control board suitable for the laser is to first install the updated main control board to be tested on the real laser to obtain the real laser after the replacement and system upgrade, and then use the laser test equipment to test it. Specifically, the laser is connected to the test equipment through an external control signal line, and the test equipment is used to control the laser, so that the laser is in the external control mode to perform various tests. In this process, there are the following problems:

[0064] 1. The main control board must be installed in a real laser, and the optimized and upgraded main control board cannot be tested separately;

[0065] 2. The external control signal lines are not fixed and integrated. There are many types and quantities of signals on the wiring terminals, which makes it difficult for workers to quickly identify each signal and fix the external control signal lines. It will also cause collisions between the wiring terminals and cause short circuits, which is not conducive to operation and experiments in workshops and laboratories. In particular, there are safety hazards and affect test efficiency in harsh environments such as production lines.

[0066] 2. During the test, the main control board of the laser is in external control mode, which requires the use of multiple switch devices and programmable power supplies, and the number required is high, resulting in cumbersome control process of the laser;

[0067] 3. It is not possible to input complex signals in multiple modes and synchronously monitor the status of all output signals of the laser, and cannot meet the different test requirements of the corresponding externally controlled increasingly complex electrical performance test items;

[0068] 4. The input and output displays of many key signals are difficult to achieve, which brings inconvenience to the test and further affects the test efficiency.

[0069] In view of the above problems, the present application provides a laser main control board performance test system and test tooling. The present application and the following embodiments are described below in conjunction with the accompanying drawings.

[0070] The present application proposes a laser main control board performance testing system.

[0071] In one embodiment of the present application, refer to Figure 1 , Figure 1 The present invention is a system block diagram of an embodiment of a laser main control board performance test system. The laser main control board performance test system includes a power supply analog input circuit, a host computer analog control circuit, a light output analog feedback circuit, a light output detection circuit and a signal processing circuit. The power supply analog input circuit, the host computer analog control circuit and the light output analog feedback circuit are respectively connected to the main control board to be tested, the light output detection circuit is connected to the light output analog feedback circuit, and the signal processing circuit is connected to the light output detection circuit.

[0072] Among them, the power simulation input circuit is used to simulate the power input of a real laser, provide a power signal to the main control board to be tested, and make the main control board to be tested work; the host computer simulation control circuit is used to simulate the host computer that controls the real laser, and send control instructions to the main control board to be tested, so that the main control board to be tested generates a light control signal; the light simulation feedback circuit is used to simulate the light emission and light feedback of a real laser, generate a light current according to the light control signal output by the main control board to be tested, and detect the light current to obtain a light feedback signal, and send it to the main control board to be tested, so that the main control board to be tested performs post-processing; the light detection circuit is used to collect the light power of the simulated laser and output a power feedback signal; the signal processing circuit is used to perform signal processing according to the power feedback signal, obtain the test results and display them.

[0073] It should be noted that the laser main control board refers to a control board suitable for the laser. This system is a test system (ETS: Engineering Test System) for testing various performances of the laser main control board, such as testing the light control function, data acquisition function, etc., which are not specifically limited here. The power supply analog input circuit, the upper computer analog control circuit, the light output analog feedback circuit, the light output detection circuit and the signal processing circuit can be a circuit structure composed of various electronic devices, or a circuit structure composed of an integrated chip and peripheral devices, which are not specifically limited here.

[0074] It should also be noted that after the power supply analog input circuit supplies power to the main control board to be tested and the host computer analog control circuit issues control instructions to the main control board to be tested, the main control board to be tested can enter normal operation and generate control signals in response to the control instructions, such as light control signals, display control signals, etc. Because when a real laser emits light, its photoelectric sensor will detect the light current, and use this to determine whether the laser emits light normally. According to this principle, the system receives the light control signal output by the main control board to be tested through the light simulation feedback circuit, generates a corresponding light current, and then detects the light current to generate a light feedback signal, which is returned to the main control board to be tested, so that the main control board to be tested can perform post-processing according to the light feedback signal to complete various operations related to the performance to be tested of the main control board to be tested. It can be seen that the power supply analog input circuit, the host computer analog control circuit, the light simulation feedback circuit, and the main control board to be tested form a simulated laser. On this basis, the light output power of the simulated laser is collected by using the light output detection circuit, and then the signal processing circuit is used to process the signal to obtain the test results and display them, completing various performance tests on the main control board of the simulated laser, that is, the main control board to be tested, which can meet the electrical performance test requirements of different laser main control boards. Therefore, the system can control, verify and test various switch signals of the simulated laser based on the main control board to be tested, to verify the performance of the main control board to be tested, to see whether the various signal levels are abnormal, and whether the implemented functions are operating normally. It can completely replace the real laser and test the main control board suitable for the laser with the circuit structure alone.

[0075] The laser main control board performance test system provided in this embodiment simulates the power input of a real laser through a power simulation input circuit, provides a power signal to the main control board to be tested, and makes the main control board to be tested work; simulates the host computer that controls the real laser through the host computer simulation control circuit, sends a control instruction to the main control board to be tested, so that the main control board to be tested generates a light control signal; simulates the light emission and light emission feedback of the real laser through the light emission simulation feedback circuit; generates a light emission current according to the light emission control signal output by the main control board to be tested, and detects the light emission current to obtain a light emission feedback signal and sends it to the main control board to be tested, so that the main control board to be tested performs post-processing, thereby building a simulated laser; and then through the light emission detection circuit The circuit collects the light output power of the simulated laser, outputs the power feedback signal, processes the signal through the signal processing circuit, obtains the test results and displays them; in this system, a simulated laser is constructed based on the main control board to be tested and a simple circuit structure. It is not necessary to install the main control board to be tested on the real laser or connect other external control devices for testing. The signal lines in the system have been fixed and integrated, effectively avoiding safety hazards such as short circuits caused by too many terminals and problems that affect test efficiency, and achieving the effect of quick performance testing of the main control board based on the simulated laser; at the same time, the system can be applied to the test environment of various laser main control boards, improving the test adaptability and integration of the system. The system can improve the test efficiency of the laser main control board and the safety of the test environment, improve the test conditions, and conduct tests more safely, reliably and efficiently.

[0076] In another embodiment of the present application, refer to Figure 2 , Figure 2 This is a system block diagram of another embodiment of a laser main control board performance test system. The system may also include a panel simulation operation circuit, which is connected to the main control board to be tested.

[0077] Among them, the panel simulation operation circuit is used to simulate the front panel of a real laser, send operation instructions to the main control board to be tested, manually control the simulated laser, and display the operating status of the simulated laser in real time according to the display control signal output by the main control board to be tested.

[0078] It should be noted that the real laser has a front panel, and manual control is achieved by the user operating the panel. For the simulated laser in this system, because it is composed of multiple circuit structures and the main control board to be tested, the input and output actions of various key signals of the simulated laser cannot be intuitively reflected, so the panel simulation operation circuit is added, and a manually controlled simulation panel and the status display of related signals are added to the simulated laser, which makes it convenient for testers to clearly know the status of key signals in the simulated laser, brings a lot of convenience to the test, and can further improve the test efficiency. Among them, the panel simulation operation circuit can be a circuit structure composed of various electronic devices, or it can be a circuit structure composed of integrated chips and peripheral devices, which is not specifically limited here.

[0079] The laser main control board performance test system provided in this embodiment can input complex signals in multiple modes and synchronously monitor the status of all output signals of the laser, and can meet the test requirements of increasingly complex electrical performance test items of corresponding external control.

[0080] In one possible implementation, refer to Figure 3 , Figure 3 This is a schematic diagram of the principle of the power supply analog input circuit in this embodiment. The power supply analog input circuit may include a voltage conversion module, a first male socket module, a first switching module, a second switching module and a power status module. The first male socket module is connected to the main control board to be tested, and the first switching module, the second switching module and the power status module are respectively connected to the first male socket module.

[0081] Among them, the voltage conversion module is used to step down the received power supply voltage, output working voltages of different voltage values, and supply power to various circuits or modules in the system; the first switching module is used to turn on or off the ACDC power supply of the analog laser, and output a first state signal to the main control board to be tested; the second switching module is used to turn on or off the DCDC power supply of the analog laser, and output a second state signal to the main control board to be tested; the power supply status module is used to receive the indication control signal output by the main control board to be tested to indicate the power-on status of the analog laser.

[0082] It should be noted that the voltage conversion module can be connected to each circuit that needs power supply or a module in each circuit that needs power supply, and can be specifically configured according to needs, which is not specifically limited here.

[0083] like Figure 3As shown, the voltage conversion module includes a voltage converter DC1, a voltage regulator converter DC2, an isolator and a power switch S11. The input end of DC1 is connected to one end of the inductor L2 and one end of the capacitor C3 respectively, the other end of L2 receives the power supply voltage 24V_IN, the other end of C3 and the ground end of DC1 are both grounded, the positive output end of DC1 is connected to one end of the inductor L1 and one end of the resistor R10 respectively, the other end of L1 is connected to one end of the capacitor C1 and one end of the capacitor C2 respectively, and the working voltage EXT_12V after the voltage reduction is output, and the other end of C1, the other end of C2, the other end of R10 and the negative output end of DC1 are all grounded; wherein, the power supply voltage 24V_IN can be obtained by converting the strong AC 220V through the auxiliary power supply. The input end of DC2 is connected to the capacitor C4 and receives the working voltage EXT_12V, the output end of DC2 is connected to one end of the capacitor C5, and the working voltage DC_5V after the voltage reduction is output, and the ground end of DC2 and the other end of C5 are grounded. The isolator includes coils L3 and L4, performs isolation conversion on the working voltage DC_5V, and outputs the working voltage AUX_5V. One end of S11 receives the working voltage DC_5V, and the other end is connected to the main control board to be tested through the first male socket module.

[0084] The first male connector module includes a straight male connector J1, which exchanges information with the main control board to be tested; J1 is connected to the voltage conversion module to connect it to the power supply voltage 24V_IN; the other end of S11 is connected to the READY pin of J1 to provide the working voltage AUX_5V to the main control board to be tested, simulating the main power supply of the real laser to be powered on; J1 is connected to the interface J2 to provide CAN communication of DCDC power supply to the main control board to be tested.

[0085] The first switching module includes a switch S9, a first end of S9 receives an operating voltage AUX_5V through a resistor R6, a second end of S9 is connected to a pin ACDC_AC_OK of J1, and a third end of S9 is grounded through a resistor R7. For example, when the AC / DC power supply needs to be turned on, S9 is turned to the first end, and the output first state signal is 5V, which is a high level.

[0086] The second switching module includes a switch S10, the first end of S10 receives the working voltage AUX_5V through the resistor R8, the second end of S10 is connected to the pin ACDC_DC_OK of J1, and the third end of S10 is grounded through the resistor R9. For example, when the DCDC power supply needs to be turned on, S10 is turned to the first end, and the output second state signal is 5V, which is a high level.

[0087] The power status module includes an ACDC power indicator light D9 and a DCDC power indicator light D10. The positive electrode of D9 is connected to the ACDC_ON / OFF pin of J1 through a resistor R4, and the negative electrode of D9 is grounded. The positive electrode of D10 is connected to the DCDC_ON / OFF pin of J1 through a resistor R5, and the negative electrode of D10 is grounded. The main control board to be tested sends the status indication control signal of the ACDC power supply and the DCDC power supply through J1. When the power is turned on, the signal is a high-level signal greater than 4.5V, and when the power is turned off, the signal is a low-level signal less than 0.7V. For example, when the second status signal received by the main control board to be tested is at a high level, it sends a high-level DCDC power supply status indication control signal, and D10 is turned on and illuminated, simulating an indication that the DCDC power supply is in a powered-on state.

[0088] It should also be noted that the power analog input circuit of this embodiment can provide different voltage signals such as 24V, 12V, and 5V, which can meet the actual power supply requirements of different devices in subsequent circuits or modules. It can be understood that a conversion module that converts 5V voltage to 3.3V voltage can be further added according to actual needs. The module structure refers to the aforementioned voltage conversion module and the second switching module, which will not be repeated here.

[0089] In one possible implementation, refer to Figure 4 , Figure 4 This is a schematic diagram of the principle of the upper computer analog control circuit in this embodiment. The upper computer analog control circuit may include a second male socket module, a switch module and a switch status module. The second male socket module is connected to the main control board to be tested, and the switch module and the switch status module are respectively connected to the second male socket module.

[0090] Among them, the switch module is used to simulate multiple switches of the host computer, send switch simulation signals to the main control board to be tested, so that the main control board to be tested generates different light output control signals accordingly, so that the simulated laser has different light output modes; the switch state module is used to receive the indication control signal output by the main control board to be tested, so as to indicate multiple light output states of the simulated laser.

[0091] It should be noted that the multiple switches may include a red light switch, a light output switch, a reset switch, a first interlock switch and / or a second interlock switch; the light output control signal may include a red light control signal, a light output control signal and / or a light off control signal; the light output mode may include red light output and normal light output; the multiple light output states may include a red light state, a light output state, a power-on state and / or a fault state.

[0092] like Figure 4As shown, the second male socket module includes a straight male socket J3, the pin Interlock2- of J3 is short-circuited with the pin Interlock2+, and the pin Interlock1- is short-circuited with the Interlock1+; the pin 24V_GND of J3 is connected to the pin E_AGND through the resistor R12; more pins of J3 are also connected to the main control board to be tested, respectively, to realize the communication between other circuits or modules in the system and the main control board to be tested, including sending signals to the main control board to be tested or receiving signals generated by the main control board to be tested, etc., which are not specifically limited here.

[0093] The switch module includes a red light switch S3, an outgoing light switch S4, a reset switch S5, a first interlock switch S6 and a second interlock switch S7. One end of S3 is connected to pin 8 of J3, and the other end is connected to pin GUI LA ON of J3, so as to send a red light switch analog signal to the main control board to be tested, so as to realize red light control, i.e., control the analog laser to emit red light; one end of S4 is connected to pin 8 of J3, and the other end is connected to pin EMISSION ON of J3, so as to send an optical switch analog signal to the main control board to be tested, so as to realize laser enablement, i.e., control the analog laser to emit light; one end of S5 is connected to pin 8 of J3, and the other end is connected to pin EX RST of J3, so as to send a reset switch analog signal to the main control board to be tested, so as to realize reset control, i.e., control the analog laser to reset; one end of S6 is connected to pin Interlock1+ of J3, and the other end is grounded, so as to send a first interlock switch analog signal to the main control board to be tested; one end of S7 is connected to pin Interlock2+ of J3, and the other end is grounded, so as to send a second interlock switch analog signal to the main control board to be tested, so as to realize connection control with two external interlocking devices, i.e., control the analog laser to receive signals output by the two interlocking devices.

[0094] The switch status module includes a power-on status indicator D4, a light-out ready indicator D5, a light-out alarm indicator D6, and a laser-out indicator D7. The positive electrode of D4 is connected to the Power Status pin of J3 through a resistor R19, and the negative electrode is grounded. When D4 is on, it means that the main power supply has been started. The positive electrode of D5 is connected to the LaserReady pin of J3 through a resistor R20, and the negative electrode is grounded. When D5 is on, it means that the simulated laser is ready. The positive electrode of D6 is connected to the LaserErr pin of J3 through a resistor R21, and the negative electrode is grounded. When D6 is on, it means that the simulated laser is abnormal and alarms. The positive electrode of D7 is connected to the EMISSION ISON pin of J3 through a resistor R22, and the negative electrode is grounded. When D7 is on, it means that the simulated laser has emitted light. The Power Status pin, the LaserReady pin, the LaserErr pin, and the EMISSION IS ON pin of J3 can all receive the indication control signals output by the main control board to be tested.

[0095] In one possible implementation, refer to Figure 5 , Figure 5 This is a schematic diagram of the principle of the light output simulation feedback circuit in this embodiment. The light output simulation feedback circuit may include a signal generating module, an optical power simulation current module and a red light simulation module. The signal generating module, the optical power simulation current module and the red light simulation module are respectively connected to the main control board to be tested.

[0096] Among them, the signal generation module is used to use the signal generator to generate a modulated signal to provide a test signal source for the main control board to be tested; the optical power simulation current module is used to generate and adjust the light output current according to the light output control signal output by the main control board to be tested, and to detect the light output current to obtain the light output feedback signal, and send it to the main control board to be tested, so that the main control board to be tested can perform post-processing; the red light simulation module is used to collect and adjust the red light current of the simulated laser to simulate the red light emission of the real laser.

[0097] like Figure 5 As shown, the pin MOD+ of the signal generating module MOD1 is respectively connected to the pin 15 of J3 and the positive output end of the signal generator interface J6, and the pin MOD- of MOD1 is respectively connected to the pin 16 of J3 and the negative output end of J6. J6 is used to connect to the external MOD signal generator, receive the modulated signal generated by it, and then send it to the main control board to be tested through J3, so as to provide a test signal source for the main control board to be tested. The frequency and duty cycle of the simulated laser can be adjusted through the modulated signal.

[0098] The optical power simulation current module includes an operational amplifier OP1A, a variable resistor VR8, a common-mode amplifier OP1B and a power switch V24; the positive input terminal of OP1A is connected to the main control board to be tested through J1 to receive the light control signal DA_SET, the pin 12 of J1 is connected to the main control board to be tested, the pin 11 is connected to the positive input terminal of OP1A, the negative input terminal of OP1A is connected to the output terminal of OP1A, and the output terminal of OP1A is also connected to the positive input terminals of VR8, capacitor C10 and OP1B through resistor R23 to generate a photocurrent. The photocurrent can be adjusted by adjusting VR8 to simulate The optical power of the real laser changes, the output end of OP1B is connected to the gate of V24 through resistor R25, the negative input end of OP1B is connected to the source of V24, the source of V24 is also grounded through resistor R53, the drain of V24 receives the working voltage DC_5V through resistor R26, one end of connector J8 receives the working voltage DC_5V through resistor R27, the drain of V24 and the other end of J8 are grounded through resistor R28 respectively, J8 is connected to the main control board to be tested, and the light output feedback signal obtained by detecting the photocurrent is sent to the main control board to be tested, so as to inform the main control board to be tested that the simulated laser has been emitting light normally.

[0099] It should be noted that when a real laser emits light, the photoelectric sensor inside it will detect the photocurrent to determine whether the real laser emits light normally. The optical power simulation current module here is a module that simulates the light emission of a real laser. It receives the light control signal DA_SET provided by the main control board and generates a photocurrent to simulate the situation in which the photoelectric sensor detects the photocurrent during the light emission of a real laser. The light feedback signal obtained by detecting the photocurrent is then fed back to the main control board to be tested through J8 to form a closed loop. Here, the light feedback signal is sent to the main control board to be tested to avoid repeated alarms due to no feedback from the main control board to be tested, thereby affecting the performance test.

[0100] The red light simulation module includes a common-phase amplifier OP2B and an operational amplifier OP2A; the switch state module also includes a red light output indicator D8; the positive input end of the common-phase amplifier OP2B is respectively connected to one end of the resistor R13 and the positive output end of the red light emitter interface J4, and the negative input end of OP2B is respectively connected to the other end of R13 and the negative output end of J4, and J4 is used to connect an external red light emitter to simulate the red light current collection of the laser; a capacitor C7 and a resistor R14 are connected in parallel between the negative input end and the output end of OP2B to adjust the size of the red light current; the output end of OP2B is connected to the positive input end of OP2A through a resistor R16, the negative input end of OP2A is grounded through a resistor R15, and is also connected to the output end of OP2A through a resistor R17, and the output end of OP2A can be connected to the main control board to be tested to send a red light feedback signal RED. The output end of OP2A is also connected to the positive pole of D8 through a resistor R18, and the negative pole of D8 is grounded. When D8 lights up, it means that the simulated laser has emitted red light.

[0101] Furthermore, if Figure 5 As shown, the light output simulation feedback circuit may further include a scattered light simulation module and a laser temperature simulation module, and the scattered light simulation module and the laser temperature simulation module are respectively connected to the main control board to be tested.

[0102] Among them, the scattered light simulation module is used to simulate the burning of optical devices inside the optical module of a real laser, and output a first simulation signal to the main control board to be tested to test the scattered light alarm function of the main control board to be tested; the laser temperature simulation module is used to simulate the temperature changes of the water cooling plate, beam combining module and output optical cable head in the real laser, and output a second simulation signal to the main control board to be tested to test the abnormal temperature alarm function of the water cooling plate, beam combining module and output optical cable head of the main control board to be tested.

[0103] like Figure 5As shown, the scattered light simulation module includes variable resistors VR1-VR4, VR1-VR4 are respectively connected to pins SCATER1-SCATER4 of connector XS2, connector XS2 is connected to the main control board to be tested, and adjusting VR1-VR4 can simulate the scattered light voltage change caused by the burning of the optical device inside the optical module of the real laser, and output the first simulation signal to the main control board to be tested to test whether the scattered light alarm function of the main control board to be tested is normal.

[0104] The laser temperature simulation module includes variable resistors VR5 and VR6. VR5 and VR6 are respectively connected to the pins Temp1 and Temp2 of XS2. When the real laser emits light, its temperature sensor senses the temperature change and causes the current change. Adjusting VR5 can simulate the temperature change of the water-cooling plate, and output the corresponding second analog signal to the main control board to be tested, so as to test whether the temperature detection function of the main control board to be tested for the water-cooling plate is accurate and whether the temperature abnormality alarm function is normal; adjusting VR6 can simulate the temperature change of the beam combining module, and output the corresponding second analog signal to the main control board to be tested, so as to test whether the temperature detection function of the main control board to be tested for the beam combining module is accurate and whether the temperature abnormality alarm function is normal.

[0105] The laser temperature simulation module also includes a switching switch S8 and a variable resistor VR7. The first end of S8 is respectively connected to one end of VR7 and the pin Temp3- of XS2, the second end is connected to the pin Temp3+ of XS2, and the third end is connected to the other end of VR7. Pins Temp3+ and Temp3- can receive the interlocking signal of the output optical cable head (jumper head) output by the main control board to be tested. Adjusting VR7 can simulate the temperature change of the output optical cable head and output the corresponding second simulation signal to the main control board to be tested, so as to test whether the temperature detection function of the main control board to be tested for the output optical cable head is accurate and whether the temperature abnormality alarm function is normal.

[0106] In one possible implementation, refer to Figure 6 , Figure 6 Schematic diagram of the panel simulation operation circuit in this embodiment. The panel simulation operation circuit may include a connector module, a switch operation module and an indicator light module. The connector module is connected to the main control board to be tested, and the switch operation module and the indicator light module are respectively connected to the connector module;

[0107] Among them, the switch operation module is used to provide the user with an operation switch, and after generating an operation instruction according to the user operation, it is sent to the main control board to be tested through the connector module; the indicator light module is used to display according to the display control signal output by the main control board to be tested through the connector module to indicate the operating status of the simulated laser.

[0108] like Figure 6As shown, the connector module includes a front panel signal interface XS1, and the pin KEY of XS1 is connected to the main control board to be tested, which is used to simulate the key or main switch of a real laser, and send corresponding operation instructions to the main control board to be tested according to the user's operation; the pin LASER of XS1 is connected to the main control board to be tested, which is used to simulate the front panel light-emitting key of the real laser, and send corresponding light-emitting switch operation instructions to the main control board to be tested according to the user's operation.

[0109] The switch operation module includes a power switch S1 and an emergency stop switch S2. One end of S1 is connected to the power supply through interface P1 to receive the input voltage +24V_IN_1, and is also connected to pin 9 of J3. The other end is connected to the power analog input circuit to provide a power supply voltage 24V_IN, and is also connected to pin 8 of J3 to output power switch operation instructions to the main control board to be tested to achieve power control of the simulated laser; one end of S2 is connected to pin 10 of J3, and the other end is connected to pin 11 of J3 to output emergency stop switch operation instructions to the main control board to be tested to achieve emergency stop control of the simulated laser.

[0110] The indicator light module includes a panel alarm light D1, a panel emission light D2 and a power indicator light D3; the positive electrode of D1 is connected to the other end of S1 through a resistor R1, and the negative electrode is connected to the pin LaserErr1 of XS1. According to the display control signal of the received panel alarm, it indicates that the simulated laser has an emission error and a panel alarm is required; the positive electrode of D2 is connected to the other end of S1 through a resistor R2, and the negative electrode is connected to the pin Emission is ON 1 of XS1. According to the display control signal of the received panel emission, it indicates the emission state of the simulated laser, and the high level state indicates that the light has been emitted; the positive electrode of D3 is connected to the other end of S1 through a resistor R3, and the negative electrode is grounded. When D3 is lit, it means that S1 is closed and the simulated laser is in the power-on state.

[0111] In this embodiment, the panel simulation operation circuit simulates the relevant operation and display functions of the front panel on the real laser, provides relevant signal input and indicator light output, can send operation instructions to the main control board to be tested, realize manual control of the simulated laser, and can also display various states of the simulated laser in real time according to the display control signal output by the main control board to be tested, realize the key signal input and output display of the simulated laser operation, provide convenience for the test work, so as to further improve the test efficiency.

[0112] The laser main control board performance test system provided in this embodiment has simple, convenient, safe and reliable test operation. The interfaces of the test system are standardized and unified, which can adapt to the test of different independently designed main control boards and greatly improve the test efficiency. The signal line terminals can be fixed and each signal can be quickly distinguished and identified, so that short circuits are not easy to occur between signal terminals due to collisions, meeting the requirements for safe operation and experiments in workshops and laboratories, etc., and improving the safety of the test. The laser operation is simulated for the main control board to be tested, which can reduce the number requirements for switching devices and power supply equipment during the test process, reduce the test cost, and streamline the test process.

[0113] In another embodiment of the present application, refer to Figure 7 , Figure 7 This is a system block diagram of another embodiment of the laser main control board performance test system. The light detection circuit may include an optical power detection module and an optical power feedback module. The optical power detection module is connected to the light simulation feedback circuit, and the optical power feedback module is respectively connected to the optical power detection module and the signal processing circuit.

[0114] Among them, the optical power detection module is used to collect the output light power of the analog laser and output the sampling voltage; the optical power feedback module is used to isolate and amplify the sampling voltage and output the power feedback signal to the signal processing circuit.

[0115] Reference Figure 8 , Figure 8FIG. 1 is a schematic diagram of the principle of the optical power detection module and the optical protection circuit in this embodiment. The optical power detection module includes a common-mode amplifier OP5B, an operational amplifier OP5A and a digital potentiometer U1. The positive input terminal and the negative input terminal of OP5B are respectively connected to the positive output terminal PD+ and the negative output terminal PD- of the photoelectric sensor interface J18. J18 is used to connect the photoelectric sensor to receive the voltage signal output after the photoelectric sensor collects the optical power of the analog laser. It can be understood that the optical power of the analog laser is based on the optical current generated by the optical output analog feedback circuit. The negative input terminal of OP5B is also connected to the positive output terminal PD+ and the negative output terminal PD- of the photoelectric sensor interface J18. Capacitor C21 and resistor R26 are connected to the output end, the output end of OP5B is connected to the positive input end of OP5A through resistor R29, OP5B performs a first-stage amplification on the voltage signal and outputs the first-stage amplified voltage signal, the negative input end of OP5A is grounded through resistor R28 and connected to pin PW0 of U1, the output end of OP5A is connected to the optical power feedback module and to pin PB0 of U1, a capacitor C156 is also connected in parallel between the negative input end of OP5A and the output end of OP5A, OP5A is used to perform a second-stage amplification on the voltage signal after the first-stage amplification and output the sampling voltage Power 1Out, the amplification factor of OP5A can be adjusted by the voltage change between pin PW0 and pin PB0 of U1; in this embodiment, U1 can use MCP42010 integrated digital potentiometer, and pins CS, SCK and SI of U1 are connected to the main control board to be tested through connector J5, and pins 1-3 of J5 respectively receive MCP42010 CS1 (chip select signal), SPI3 SCK (synchronous clock signal) and SPI3 MOSI (master output slave input signal) and other signals sent by the main control board to be tested, and then provide them to U1, so that U1 can work normally.

[0116] In addition, the optical power detection module can also be connected to the host computer analog control circuit, specifically, the output end of OP5A is connected to pin 13 (Power 1Out) of J3, and J3 is connected to the main control board to be tested, so that the sampling voltage Power 1Out can be sent to the main control board to be tested through J3 to realize the power detection function of the main control board to be tested. Specifically, the main control board to be tested can be informed of the light emission of the simulated laser in the system to simulate the optical power test function of the real laser. Later, when the output power of the simulated laser is unstable during the test process, the sampling voltage Power 1Out received by the main control board to be tested can be used to implement subsequent processing, so that the test process is not interrupted, the light emission of the simulated laser can be continuously monitored, and the system reliability is guaranteed.

[0117] Reference Fig. 9 , Fig. 9Schematic diagram of the principle of the optical power feedback module in this embodiment, the optical power feedback module includes an isolation chip N4, a common-mode amplifier OP12B and an operational amplifier OP12A; the input end of N4 is connected to the optical power detection module through a filter unit composed of a capacitor C60 and a resistor R85 and a resistor R82 to receive a sampling voltage Power 1Out; the positive output end VOUTP of N4 is connected to the positive input end of OP12B through a resistor R86, the negative output end VOUTN of N4 is connected to the negative input end of OP12B through a resistor R83, the negative input end of OP12B is connected to the output end through a capacitor C56 and a resistor R81 connected in parallel, the output end of OP12B is connected to the positive input end of OP12A through a resistor R182, the negative input end of OP12A is connected to the output end, the output end of OP12A is connected to one end of a voltage-stabilizing diode E25 and a signal processing circuit through a varistor R39, and the other end of the voltage-stabilizing diode E25 is grounded. The optical power feedback module isolates and amplifies the sampled voltage Power 1Out, and outputs a power feedback signal P_Return to the signal processing circuit.

[0118] In a possible implementation, Figure 7 As shown, the system may further include an optical protection circuit, which is respectively connected to the optical power detection module and the main control board to be tested.

[0119] Among them, the optical protection circuit is used to perform power anomaly detection and light anomaly detection according to the sampled voltage, so as to provide power protection and light protection through the main control board to be tested.

[0120] In a specific embodiment, Figure 8 As shown, the optical protection circuit may include a first comparison module and a second comparison module, the first comparison module and the second comparison module are respectively connected to the optical power detection module, and the main control board to be tested includes a logic processing module, and the logic processing module is respectively connected to the first comparison module and the second comparison module;

[0121] Among them, the first comparison module is used to compare the sampled voltage with the preset reference voltage and output a first comparison signal; the second comparison module is used to amplify and compare the sampled voltage and output a second comparison signal; the logic processing module is used to perform power anomaly detection according to the first comparison signal, and perform light output anomaly detection according to the second comparison signal, so as to provide power protection and light output protection for the simulated laser.

[0122] like Figure 8As shown, the first comparison module includes a comparator OP4A; the positive input end of OP4A is connected to the optical power detection module to receive the sampled voltage Power 1Out; the first comparison module can also be connected to the upper computer analog control circuit, specifically, the negative input end of OP4A is connected to pin 25 (REF Power) of J3, J3 is connected to the main control board to be tested, so that the reference voltage REF Power provided by the main control board to be tested can be received through J3; the output end of OP4A can be connected to pin 7 (Power1St TOCPLD) of J3, J3 is connected to the main control board to be tested, so that the logic processing module of the main control board to be tested can be connected through J3, OP4A compares the voltage value of the sampled voltage Power 1Out with the reference voltage REF Power, and outputs a comparison result signal Power1St TO CPLD, and the comparison result signal Power1St TO CPLD is sent to the CPLD (Complex Programmable logic device: complex programmable logic device) of the logic processing module through J3, so that the main control board to be tested performs power abnormality detection, if Power 1Out is lower than REF Power, the detection result of power anomaly can be obtained, thereby realizing the test of the power protection function of the main control board to be tested, wherein the power protection function refers to the power anomaly alarm control performed by the main control board when power anomaly is detected. It should be noted that the main control board to be tested can be connected to the host computer, and the user can set the optical power of the simulated laser (any value between 0-100%) on the host computer. For example, if the optical power is set to 50%, the main control board to be tested will generate a signal containing the corresponding power reference voltage value, namely the reference voltage REF Power, and then give it to the negative input terminal of OP4A through J3; optionally, the reference voltage REF Power generated by the main control board to be tested can also change with the change of the power setting analog signal SET POWER received by the main control board to be tested, which is not specifically limited here.

[0123] like Figure 8As shown, the second comparison module includes an operational amplifier OP6A and a comparator OP4B; the positive input end of OP6A is connected to the optical power detection module to receive the sampling voltage Power 1Out; the negative input end of OP6A is connected to the output end through a resistor R36, the output end of OP6A is connected to the positive input end of OP4B, OP6A proportionally amplifies the sampling voltage Power 1Out, and outputs the amplified sampling voltage Laser 1Out; the second comparison module can also be connected to the host computer analog control circuit, specifically, the output end of OP6A is connected to the pin 5 (Laser 1Out) of J3, J3 is connected to the main control board to be tested, so that the amplified sampling voltage Laser 1Out can be sent to the main control board to be tested through J3; the negative input end of OP4B is respectively connected to one end of the capacitor C30, one end of the resistor R32 and one end of the resistor R33, the other end of R33 receives the working voltage +3.3V, the other end of C30 and the other end of R32 are both grounded; the output end of OP4B can be connected to the pin 6 (Laser1St TO J3) CPLD), J3 is connected to the main control board to be tested, so that the logic processing module of the main control board to be tested can be connected through J3, OP4B compares the voltage value of the amplified sampling voltage Laser1Out with the constant voltage based on R32, R33 and C30, and outputs the comparison result signal Laser 1St TOCPLD to the CPLD of the logic processing module, so that the main control board to be tested performs light abnormality detection. If Laser 1Out is lower than the aforementioned constant voltage, the detection result of the light abnormality can be obtained, thereby realizing the test of the light protection function of the main control board to be tested, wherein the light protection function refers to the light abnormality alarm control performed by the main control board when the light abnormality is detected.

[0124] In one possible implementation, refer to Figure 10-12 , Fig.10 Schematic diagram of the principle of the light output adjustment module and the AD sampling module in this embodiment. Fig.11 is a schematic diagram of the principle of the processor module in this embodiment, Fig.12 This is a schematic diagram of the principle of the result display module in this embodiment. The signal processing circuit may include a light output adjustment module, an AD sampling module, a processor module and a result display module. The light output adjustment module is connected to the analog control circuit of the host computer, the AD sampling module is respectively connected to the light output adjustment module and the light output detection circuit, the processor module is connected to the AD sampling module, and the result display module is connected to the processor module.

[0125] Among them, the light output adjustment module is used to generate an analog signal, and output it to the main control board to be tested through the host computer analog control circuit to adjust the light output power of the analog laser; the AD sampling module is used to sample the analog signal to obtain a first sampling signal, and amplify the power feedback signal to obtain a second sampling signal; the processor module is used to process the first sampling signal and the second sampling signal to obtain the test result, and output the display drive signal; the result display module is used to drive the LED display component according to the display drive signal to display the test result.

[0126] like Fig.10 As shown, the light output adjustment module includes a sliding resistor R111 and an amplifier OP3A; the first end of R111 receives the working voltage through the resistor R110, the second end is grounded, and the third end is connected to the positive input end of OP3A, the negative input end of OP3A is connected to the output end, the output end of OP3A is connected to the AD sampling module, and the power setting analog signal SET POWER is output. The output end of OP3A is also connected to the analog control circuit of the upper computer, specifically connected to pin 12 (SET POWER) of J3, OP3A outputs an adjustable power setting analog signal SET POWER, J3 is connected to the main control board to be tested, so that the power setting analog signal SET POWER can be sent to the main control board to be tested through J3, so as to realize the control and adjustment of the light output power of the analog laser, specifically, the main control board to be tested can generate a corresponding light output control signal to control the light output of the analog laser and generate a light output current.

[0127] In practical applications, the sliding resistor R111 can be connected to the external control tooling. By manually rotating the R111, the power setting analog signal SET POWER can be adjusted to adjust the output power of the analog laser accordingly, thereby controlling the analog laser to output light at a power of 0%-100%. The power setting analog signal SET POWER can be processed by the AD sampling module to obtain the first sampling signal ADIN1; the power feedback signal P_Return can be processed by the AD sampling module to obtain the second sampling signal ADIN2.

[0128] The AD sampling module includes resistors R112-R115, capacitors C26, capacitor C27 and follower OP3B; one end of R112 is connected to the light output adjustment module, specifically to the output end of OP3A, the other end of R112 is respectively connected to one end of R113, one end of C26 and the processor module, and outputs a first sampling signal ADIN1, and the other end of R113 and the other end of C26 are grounded; one end of R114 is connected to the light output detection circuit, specifically to the optical power feedback module, and receives a power feedback signal P_Return, the other end of R114 is respectively connected to one end of R115, one end of C27 and the positive input end of OP3B, the other end of R115 and the other end of C27 are grounded, the negative input end of OP3B is connected to the output end, the output end of OP3B is connected to the processor module, and the second sampling signal ADIN2 is output.

[0129] like Fig.11 As shown, the processor module includes a single-chip microcomputer U10, and the pin PA1 of U10 is connected to the other end of R112 in the AD sampling module through a resistor R42 to receive the first sampling signal ADIN1, and the pin PA2 of U10 is connected to the output end of OP3B in the AD sampling module through a resistor R43 to receive the second sampling signal ADIN2; the processor module processes ADIN1 and ADIN2 according to a preset built-in program, and generates a display drive signal for the test result. Exemplarily, the single-chip microcomputer U10 can use a single-chip microcomputer TM32F103RCT6 to process ADIN1 and ADIN2, and the processed signals are transmitted to the result display module of the subsequent stage for display.

[0130] like Fig.12As shown, the result shows that the module includes a driver chip U2 and LED digital tubes D21 and D22; the pin DIN of U2 is connected to the pin PC9 of U10 to receive the data input signal, the pin LOAD of U2 is connected to the pin PC8 of U10 to receive the chip select signal, the pin CLK of U2 is connected to the pin PC7 of U10 to receive the CLK clock signal, and SPI (Serial Peripheral Interface) is used for communication between U2 and U10; the pins DIG0-DIG2 of U2 are connected to the pins DG1-DG3 of D22 correspondingly, the pins DIG3-DIG5 of U2 are connected to the pins DG1-DG3 of D21 correspondingly, the pins SEGA-SEGG and SEGDP of U2 are connected to the pins AG and DP of D21 correspondingly, and are connected to the pins AG and DP of D22 correspondingly. Exemplarily, U2 can use an 8-bit LED display driver chip MAX7219ENG, pin DIN of U2 is a serial data input pin, and pin DOUT is a serial data output pin, which can be used to connect multiple driver chips in series to achieve the driving of more LED digital tubes, thereby displaying more complex and more test results; pins AG and DP of D21 and D22 are both digital tube anodes, and pins DG1-DG3 are both digital tube cathodes. D21 and D22 can use multi-digit digital tubes, and here a three-digit digital tube is taken as an example. D22 can be used to display the power setting analog signal SET POWER received by the analog laser corresponding to the first sampling signal ADIN1, and D21 can be used to display the power feedback signal P_Return when the analog laser simulates light output corresponding to the second sampling signal ADIN2.

[0131] The laser main control board performance test system provided in this embodiment can provide a variety of complex analog signals for the simulated laser, and synchronously monitor all output signals of the simulated laser to meet the needs of multiple external control performance test items; during the main control board test process, when the output power of the simulated laser is unstable, the power feedback signal received by the main control board to be tested can be used to measure, read and output display, and the output light power can be visualized, so that the light power can be continuously monitored during the test, which solves the problem of long-term power measurement due to excessive power of the test laser and the lack of a power meter with corresponding rating.

[0132] The present application also proposes a laser main control board performance test tool. The laser main control board performance test tool may include a laser main control board performance test system.

[0133] It should be noted that the specific structure of the laser main control board performance test system refers to the above-mentioned embodiment. Since the laser main control board performance test tooling adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0134] The above are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A laser main control board performance test system, characterized in that: include: A power simulation input circuit is connected to the main control board to be tested, and is used to simulate the power input of a real laser, and provide a power signal to the main control board to be tested, so that the main control board to be tested works; The host computer simulation control circuit is connected to the main control board to be tested, and is used to simulate the host computer that controls the real laser, and issue control instructions to the main control board to be tested, so that the main control board to be tested generates a light control signal; A light emission simulation feedback circuit is connected to the main control board to be tested, and is used to simulate the light emission and light emission feedback of a real laser, generate a light emission current according to the light emission control signal output by the main control board to be tested, and detect the light emission current to obtain a light emission feedback signal, and send it to the main control board to be tested, so that the main control board to be tested performs post-processing; A light output detection circuit is connected to the light output simulation feedback circuit and is used to collect the light output power of the simulated laser and output a power feedback signal; The signal processing circuit is connected to the light output detection circuit and is used to perform signal processing according to the power feedback signal to obtain and display the test results.

2. The laser main control board performance test system according to claim 1, wherein the system further comprises: The panel simulation operation circuit is connected to the main control board to be tested, and is used to simulate the front panel of a real laser, send operation instructions to the main control board to be tested, manually control the simulated laser, and display the operating status of the simulated laser in real time according to the display control signal output by the main control board to be tested.

3. The laser main control board performance test system according to claim 2, wherein the power supply simulation input circuit comprises: The voltage conversion module is used to step down the received power supply voltage and output working voltages of different voltage values ​​to supply power to various circuits or modules in the system; A first male socket module connected to the main control board to be tested; A first switching module, connected to the first male socket module, used to turn on or off the ACDC power supply of the analog laser and output a first state signal to the main control board to be tested; A second switching module, connected to the first male socket module, is used to turn on or off the DCDC power supply of the analog laser and output a second state signal to the main control board to be tested; The power status module is connected to the first male socket module and is used to receive the indication control signal output by the main control board to be tested to indicate the power-on status of the simulated laser.

4. The laser main control board performance test system according to claim 2, wherein the host computer simulation control circuit comprises: A second male socket module is connected to the main control board to be tested; A switch module, connected to the second male socket module, is used to simulate multiple switches of the host computer, and send a switch simulation signal to the main control board to be tested, so that the main control board to be tested generates different light output control signals accordingly, so that the simulated laser has different light output modes; The switch state module is connected to the second male socket module and is used to receive the indication control signal output by the main control board to be tested to indicate multiple light output states of the simulated laser.

5. The laser main control board performance test system according to claim 2, wherein the light output simulation feedback circuit comprises: A signal generating module, connected to the main control board to be tested, used to generate a modulation signal using a signal generator to provide a test signal source for the main control board to be tested; An optical power simulation current module is connected to the main control board to be tested, and is used to generate and adjust the light output current according to the light output control signal output by the main control board to be tested, and to detect the light output current to obtain a light output feedback signal, and send it to the main control board to be tested, so that the main control board to be tested performs post-processing; A red light simulation module, connected to the main control board to be tested, for collecting and adjusting the red light current of the simulated laser to simulate the red light emission of a real laser; A scattered light simulation module, connected to the main control board to be tested, used to simulate the burning of the internal optical components of the optical module of a real laser, and output a first simulation signal to the main control board to be tested, so as to test the scattered light alarm function of the main control board to be tested; The laser temperature simulation module is connected to the main control board to be tested, and is used to simulate the temperature changes of the water cooling plate, beam combining module and output optical cable head in the real laser, and output a second simulation signal to the main control board to be tested to test the abnormal temperature alarm function of the water cooling plate, beam combining module and output optical cable head of the main control board to be tested.

6. The laser main control board performance test system according to any one of claims 1 to 5, characterized in that: The light detection circuit comprises: An optical power detection module is connected to the light output simulation feedback circuit and is used to collect the light output power of the simulated laser and output a sampling voltage; The optical power feedback module is connected to the optical power detection module and the signal processing circuit respectively, and is used to isolate and amplify the sampled voltage and output the power feedback signal to the signal processing circuit.

7. The laser main control board performance test system according to claim 6, characterized in that: The system further comprises: The optical protection circuit is connected to the optical power detection module and the main control board to be tested respectively, and is used to perform power abnormality detection and light abnormality detection according to the sampled voltage, so as to provide power protection and light protection through the main control board to be tested.

8. The laser main control board performance test system according to claim 7, characterized in that: The optical protection circuit comprises: A first comparison module, connected to the optical power detection module, for comparing the sampled voltage with a preset reference voltage and outputting a first comparison signal; A second comparison module, connected to the optical power detection module, for amplifying and comparing the sampled voltage and outputting a second comparison signal; The main control board to be tested includes a logic processing module, which is respectively connected to the first comparison module and the second comparison module, and is used to perform power anomaly detection according to the first comparison signal and perform light output anomaly detection according to the second comparison signal, so as to provide power protection and light output protection for the simulated laser.

9. The laser main control board performance test system according to any one of claims 1 to 5, characterized in that: The signal processing circuit comprises: A light output adjustment module is connected to the host computer analog control circuit, and is used to generate an analog signal, and output it to the main control board to be tested through the host computer analog control circuit, so as to adjust the light output power of the analog laser; An AD sampling module, connected to the light output adjustment module and the light output detection circuit respectively, for sampling the analog signal to obtain a first sampling signal, and amplifying the power feedback signal to obtain a second sampling signal; A processor module, connected to the AD sampling module, for processing the first sampling signal and the second sampling signal, obtaining a test result, and outputting a display driving signal; The result display module is connected to the processor module and is used to drive the LED display component to display the test results according to the display drive signal.

10. A laser main control board performance test tool, characterized in that: It comprises a laser main control board performance testing system as claimed in any one of claims 1 to 9.

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