Multi-path laser control system and method

Abstract

The invention discloses a multi-path laser control system and method. The control system comprises a laser, a laser control panel, a touch display screen, a power module, a cooling fan and a shell. The power supply module, the cooling fan, the laser control panel and the plurality of lasers are all arranged in the shell, and the touch display screen is located on the shell; the power supply module supplies power to the cooling fan, the laser control panel, the plurality of lasers and the touch display screen; the laser control panel communicates with the laser through a CAN bus, the laser control panel sends the control state of the laser and the feedback data of the laser to the touch display screen for display, and the control data of the laser is fed back to the laser control panel through the touch display screen. The laser control panel performs on-off and power control on the plurality of lasers according to the control data; and the laser control panel controls the heat dissipation fan to dissipate heat by detecting the temperature in the shell. According to the invention, the multi-path laser can be controlled and processed, and laser state information can be fed back and processed.

Description

Technical Field

[0001] The present invention relates to the field of laser control technology, and in particular to a multi-channel laser control system and method. Background Art

[0002] Laser control system is a kind of control technology and equipment widely used in industrial manufacturing, aerospace, medical and health fields. It mainly realizes the operation control and monitoring of lasers through automatic control systems, including: 1. In the field of industrial manufacturing, lasers can realize cutting, welding, marking and other operations on various metals and non-metallic materials. 2. In the field of aerospace, lasers can realize the processing and treatment of various metal alloys. 3. In the field of medical and health, lasers can be used for dentistry, skin plastic surgery and other treatments.

[0003] The structure of the laser control system generally consists of four parts: human-machine interface, main controller, signal collector and actuator. The human-machine interface provides a graphical control interface for the operator, the main controller is used to process and control the actual production scene, the signal collector is responsible for collecting real-time operation signals from a series of sensors, and the actuator refers to the part that can actually operate the laser. A system that can control and process multiple lasers is proposed. Summary of the invention

[0004] In view of this, the present invention provides a multi-channel laser control system and method, which can control and process multi-channel lasers and feedback and process laser status information.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A multi-channel laser control system includes a laser, a laser control board, a touch display screen, a power module, a cooling fan and a housing;

[0007] The power module, cooling fan, laser control board and multiple lasers are all arranged in the shell, and the touch display screen is located on the shell; the power module supplies power to the cooling fan, laser control board, multiple lasers and touch display screen; the laser control board communicates with the laser through the CAN bus, the laser control board sends the laser control state and laser feedback data to the touch display screen for display, and the control data of the laser is fed back to the laser control board through the touch display screen, and the laser control board switches and controls the power of multiple lasers according to the control data; the laser control board controls the cooling fan for heat dissipation by detecting the temperature in the shell.

[0008] Furthermore, the touch screen is provided with operating status display lights corresponding to the multiple lasers, communication status display, power setting button, light output power, tube core temperature, individual switch button, total power button, and total switch button;

[0009] The operating status indicator light displays three colors, corresponding to the three states of normal, abnormal, and disabled laser.

[0010] Communication status display includes normal, abnormal, and offline;

[0011] When the operating status indicator shows an alarm, the communication status shows an abnormality, or the difference between the set power and the output power exceeds 20%, it is a fault and the buzzer alarm is triggered.

[0012] Furthermore, the touch display screen is also provided with a mute button, so that a buzzer alarm will not be triggered in the event of a fault.

[0013] A control method for a multi-channel laser control system adopts the above multi-channel laser control system, and the control method is as follows:

[0014] After powering on, the laser control board sends a query message to the laser through the CAN bus. After receiving the message, the laser sends a status data message to the laser control board according to its own ID and delays ID*10ms. After the laser is started, it sends a heartbeat message to the CAN bus every second. If the laser control board does not receive a heartbeat message from a certain laser within 3 seconds, it considers that the laser is abnormal and cannot communicate. At this time, the laser control board sends an alarm sound through the buzzer, and the operating status indicator light of the laser on the touch screen changes color, and the communication status of the laser is displayed as offline. If other lasers fail, the buzzer alarm will be triggered again.

[0015] After setting the total laser emission power on the touch screen, press the screen master switch button to control multiple lasers to emit lasers at the same time; press the master switch button again to stop emitting lasers; press the individual switch button of each laser on the touch screen to emit and turn off the laser separately; the control switch weights of the individual switch buttons and the master switch button corresponding to the laser are the same, and the switch control is based on the most recent control command; when the total emission power is empty, the emission power of each laser is controlled separately, and when the total emission power is not empty, the emission power of each laser is controlled according to the total emission power;

[0016] When the difference between the laser setting power and the laser output power exceeds 20%, the buzzer alarm is triggered and the laser operation status indicator changes color;

[0017] When the temperature inside the shell exceeds 50 degrees, the laser control board controls to turn on the cooling fan for heat dissipation.

[0018] Furthermore, by pressing the mute button on the touch screen, the buzzer will not be triggered to alarm regardless of any fault. When a fault is triggered, the operating status indicator light changes color, which represents an abnormal state at this time.

[0019] Furthermore, when a fault occurs, the words displayed on the communication status display, the power setting button, the optical power, the tube core temperature, the individual switch button and the main switch button can change color to give an alarm prompt.

[0020] Beneficial effects:

[0021] 1. The present invention can control and process multiple lasers and feedback the laser status information, perform switching and power control on the multiple lasers through the CAN bus, and feedback and display the laser emission status on the touch screen.

[0022] 2. After the laser of the present invention queries the message, it sends the status data message to the laser control board according to its own ID delay ID*10ms, so as to avoid the situation that the laser sends at the same time and the laser control board receives at the same time, resulting in missed data.

[0023] 3. The present invention can switch and control the power of multiple lasers simultaneously or individually, and monitor the status of the lasers. If a laser emission power failure occurs, the lasers can be switched on and off individually. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the modular composition of the present invention.

[0025] Figure 2 It is a schematic diagram of a touch display screen of the present invention. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0027] The present invention provides a multi-channel laser control system, including a laser, a laser control board, a touch screen, a power module, a cooling fan and a housing. Figure 1 shown.

[0028] The power module, the cooling fan, the laser control board and the multiple lasers are all arranged in the shell, and the touch screen is located on the shell; the power module supplies power to the cooling fan, the laser control board, the multiple lasers and the touch screen; the laser control board communicates with the laser through the CAN bus, the laser control board sends the laser control state and the laser feedback data to the touch screen for display, and the control data of the laser is fed back to the laser control board through the touch screen, and the laser control board switches and controls the power of the multiple lasers according to the control data; the laser control board controls the cooling fan for heat dissipation by detecting the temperature in the shell.

[0029] The laser communicates via CAN, and the laser number, power and switch status can be set via CAN communication. Send a query command to the laser via the CAN bus, and the laser will send the current laser operating status.

[0030] The laser control board uses STM32F107 as the main control chip and communicates with the display screen through the RS232 serial port.

[0031] The touch screen is a 6-inch serial port screen, which communicates with the laser control board via the RS232 serial port. Figure 2 As shown, the touch screen is provided with operation status display lights, communication status display, set power button, light output power, tube core temperature, separate switch button, total power button, and total switch button corresponding to multiple lasers respectively; the operation status display light displays three colors, corresponding to the three states of normal, abnormal, and disabled of the laser respectively; in this embodiment, green corresponds to the normal state, red corresponds to the abnormal state, and gray corresponds to the disabled state. The communication status display includes normal, abnormal, and offline. When the operation status display light shows an alarm or the communication status shows an abnormality or the set power differs from the light output power by more than 20%, it is a fault, triggering the buzzer alarm.

[0032] The touch display also has a mute button so that a malfunction will not trigger a buzzer alarm.

[0033] The touch screen can set the laser emission power by touching the power setting button, and can also control the laser on and off in total or individually. After the laser power is set and the switch is controlled by the touch screen, the control signal is transmitted to the laser control board through the RS232 serial port. The laser control board processes the control information and sends the control information through the CAN bus to control the laser.

[0034] The cooling fan is an adjustable speed control fan, and the cooling is controlled by the laser control board.

[0035] The present invention also provides a control method for a multi-channel laser control system, using the above-mentioned multi-channel laser control system, the control method is as follows:

[0036] After powering on, the laser control board sends a query message to the laser through the CAN bus. After receiving the message, the laser sends a status data message to the laser control board according to its own ID and delays ID*10ms. After the laser is started, it sends a heartbeat message to the CAN bus every second. If the laser control board does not receive a heartbeat message sent by a certain laser within 3 seconds, it considers that the laser is faulty. The fault of the laser is that it cannot communicate, which means the laser is not enabled. At this time, the laser control board sends an alarm sound through the buzzer, and the operating status indicator of the laser on the touch screen turns gray, and the communication status of the laser is displayed as offline. If other lasers fail, the buzzer alarm will be triggered again.

[0037] After setting the total laser transmission power on the touch screen, press the screen master switch button to control multiple lasers to transmit lasers at the same time; press the master switch button again to stop transmitting lasers; press the individual switch button of each laser on the touch screen to transmit and turn off the laser individually; the control switch weights of the individual switch buttons and the master switch button corresponding to the laser are the same, and the switch control is based on the most recent control command; when the total transmission power is empty, the transmission power of each laser is controlled individually, and when the total transmission power is not empty, the transmission power of each laser is controlled according to the total transmission power. The laser control system can switch and control the power of multiple lasers simultaneously or individually, and monitor the status of the lasers. If the laser transmission power is too high or too low, the laser can be switched on and off individually.

[0038] When the difference between the laser set power and the laser output power exceeds 20%, the buzzer alarm is triggered and the laser operation status indicator turns red.

[0039] Press the mute button on the touch screen, and the buzzer will not sound an alarm regardless of any fault. When a fault is triggered, the operating status indicator turns red, indicating that it is an abnormal state. When the laser fails, press the mute button on the touch screen or the fault is eliminated, and the buzzer will stop sounding.

[0040] As an improvement, when a fault occurs, the communication status display, power setting button, optical power, core temperature, individual switch button and main switch button on the touch screen can turn red to give an alarm prompt. The words will return to black after the fault is eliminated.

[0041] The laser control board monitors the temperature inside the shell through temperature sensors and laser feedback. When the temperature inside the shell exceeds 50 degrees, the laser control board controls the cooling fan to turn on for heat dissipation.

[0042] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-channel laser control system, characterized in that: Including laser, laser control board, touch screen, power module, cooling fan and housing; The power module, cooling fan, laser control board and multiple lasers are all arranged in the shell, and the touch display screen is located on the shell; the power module supplies power to the cooling fan, laser control board, multiple lasers and touch display screen; the laser control board communicates with the laser through the CAN bus, the laser control board sends the laser control state and laser feedback data to the touch display screen for display, and the control data of the laser is fed back to the laser control board through the touch display screen, and the laser control board switches and controls the power of multiple lasers according to the control data; the laser control board controls the cooling fan for heat dissipation by detecting the temperature in the shell.

2. The multi-channel laser control system according to claim 1, characterized in that: The touch screen is provided with operating status display lights corresponding to the multiple lasers, communication status display, power setting button, light output power, tube core temperature, individual switch button, total power button, and total switch button; The operating status indicator light displays three colors, corresponding to the three states of normal, abnormal, and disabled laser. Communication status display includes normal, abnormal, and offline; When the operating status indicator shows an alarm, the communication status shows an abnormality, or the difference between the set power and the output power exceeds 20%, it is a fault and the buzzer alarm is triggered.

3. The multi-channel laser control system according to claim 1 or 2, characterized in that: The touch display screen is also provided with a mute button, and a buzzer alarm will not be triggered in the event of a fault.

4. A control method for a multi-channel laser control system, characterized in that: Using the multi-channel laser control system as claimed in claim 2, the control method is as follows: After powering on, the laser control board sends a query message to the laser through the CAN bus. After receiving the message, the laser sends a status data message to the laser control board according to its own ID and delays ID*10ms. After the laser is started, it sends a heartbeat message to the CAN bus every second. If the laser control board does not receive a heartbeat message from a certain laser within 3 seconds, it considers that the laser is abnormal and cannot communicate. At this time, the laser control board sends an alarm sound through the buzzer, and the operating status indicator light of the laser on the touch screen changes color, and the communication status of the laser is displayed as offline. If other lasers fail, the buzzer alarm will be triggered again. After setting the total laser emission power on the touch screen, press the screen master switch button to control multiple lasers to emit lasers at the same time; press the master switch button again to stop emitting lasers; press the individual switch button of each laser on the touch screen to emit and turn off the laser separately; the control switch weights of the individual switch buttons and the master switch button corresponding to the laser are the same, and the switch control is based on the most recent control command; when the total emission power is empty, the emission power of each laser is controlled separately, and when the total emission power is not empty, the emission power of each laser is controlled according to the total emission power; When the difference between the laser setting power and the laser output power exceeds 20%, the buzzer alarm is triggered and the laser operation status indicator changes color; When the temperature inside the shell exceeds 50 degrees, the laser control board controls to turn on the cooling fan for heat dissipation.

5. The multi-channel laser control system control method according to claim 4, characterized in that: Press the mute button on the touch screen, and the buzzer will not sound an alarm regardless of any fault. When a fault is triggered, the operating status indicator light changes color, indicating an abnormal state.

6. The multi-channel laser control system control method according to claim 4 or 5, characterized in that: When a fault occurs, the words displayed on the communication status display, the power setting button, the optical power, the tube core temperature, the individual switch button and the main switch button can change color to give an alarm prompt.

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