Intelligent control laser drilling system and intelligent power supply control method

Abstract

The invention relates to an intelligent control laser drilling system and an intelligent power supply control method. The intelligent control laser drilling system comprises a UPS (Uninterrupted Power Supply), a time relay and a power supply contactor, the power supply contactor is connected to a three-phase 380V input power supply and is controlled by the control panel power supply switch; the time relay is connected to a starting 24V power supply of the UPS and is used for controlling an enable signal of the UPS; and the output of the UPS is connected to the PLC power supply, the analog quantity power supply and the industrial personal computer power supply to supply power to the laser drilling control system. According to the invention, a set of cooperative control system which takes a time relay as a core hub and organically integrates parts such as UPS hardware, UPS monitoring software, an industrial personal computer, a main power supply contactor and the like is realized. According to the system, by defining and executing various software and hardware linkage control logics, it is ensured that the laser drilling system can achieve orderly, safe and reliable power supply management and shutdown control under various power supply working conditions, and the problems of data damage and system risks caused by sudden power failure are effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit control, in particular to an intelligent control laser perforating system and an intelligent power supply control method. BACKGROUND

[0002] In a laser perforating system, ensuring stable and continuous power supply is crucial, especially in the case of sudden power failure, a reliable power protection mechanism is needed.

[0003] Reference patent CN107942775A proposes a laser radar intelligent start and power failure protection system, which uses a generator unit in cooperation with a mains power supply unit and a UPS unit to realize system self-start and power failure protection through an ARM control unit, effectively solving the start problem and power continuity problem. However, this system is mainly aimed at laser radar, and its applicability in laser perforating systems is limited, especially for laser perforating processes that require fast response and precise control, there may be problems of response delay or insufficient control accuracy.

[0004] Another reference patent CN104281144A describes a single device control program test platform based on a combination of electrical circuits, which is used for testing the control program of the single device of the automation system, improving the test efficiency. However, this platform mainly focuses on the testing of control programs, and lacks support for real-time power supply requirements and fast shutdown and restart functions in laser perforating systems, especially in the face of sudden power failure, how to quickly and smoothly recover the system and handle faults is a major challenge faced by laser perforating systems.

[0005] In the application of the cigarette wrapping workshop, during normal production, external line power flashes or the cigarette machine power is directly disconnected, which can cause abnormal power failure of the laser perforating control system, and then cause parameters cannot be saved, communication connection fails and other faults, resulting in abnormal operation of the laser perforating equipment, and the laser perforating equipment needs to be restarted to troubleshoot the fault. However, it takes about 10 minutes to start the laser perforating equipment, which is a long time, and after restarting, the laser perforating control system is prone to various uncontrollable faults, such as system file loss, industrial computer hard disk failure, and laser perforating software failure. The above problems will cause the cigarette to be unable to perforate normally, produce unqualified cigarettes, exist major quality risks, increase cost consumption, and reduce equipment efficiency. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides an intelligent control laser perforating system and an intelligent power supply control method, which aims to partially solve the above technical problems.

[0007] To achieve the above purpose, the present application provides the following technical solutions: In one aspect, an intelligent control laser drilling system is provided, comprising a UPS uninterruptible power supply, a time relay and a power contactor; The power contactor is connected to a three-phase 380V input power supply and controlled by a power switch of the control panel; The time relay is connected to a 24V starting power supply of the UPS for controlling an enable signal of the UPS; The output of the UPS is connected to a PLC power supply, an analog power supply and an industrial computer power supply to supply power for the laser drilling control system; When the power switch of the control panel is turned to ON, the power contactor is powered, the UPS and the time relay are powered, the time relay is actuated to start the UPS, and the UPS outputs 220V power to the PLC power supply, the analog power supply and the industrial computer power supply; When the external power is cut off, the UPS software performs a shutdown countdown, and when the countdown is over, the industrial computer is controlled to execute a soft shutdown program and the UPS is shut down, after which the PLC power supply is powered off, the time relay is powered off, and the industrial computer is powered off; When normally shutting down, the power switch of the control panel is turned to OFF after executing the shutdown through the human-computer operation interface of the industrial computer, the power contactor is powered off, the analog power supply, the PLC power supply and the industrial computer input power supply are disconnected, but the UPS and the time relay remain powered until the external power supply disappears; When quickly shutting down and restarting, the power switch of the control panel is turned to OFF after executing the shutdown through the human-computer operation interface of the industrial computer, and then the system restart switch is turned to ON to restart the system.

[0008] As a preferred technical solution, the time relay includes a normally open contact and a normally closed contact, when the time relay coil is powered, the normally open contact is closed and the normally closed contact is opened to provide an enable signal to the UPS.

[0009] As a preferred technical solution, in the normal working state, the UPS is directly powered by the mains and the inverter does not work.

[0010] As a preferred technical solution, when the external power is cut off, the UPS software enters a shutdown countdown state, and after the countdown is over, the industrial computer soft shutdown program and the UPS shutdown program are executed in sequence.

[0011] As a preferred technical solution, in the normal shutdown mode, after the industrial computer is turned off, the power switch of the control panel is turned off, the power contactor is disconnected, but the UPS and the time relay continue to be powered by the mains until the mains are interrupted.

[0012] As a preferred technical solution, in the quick shutdown and restart mode, after the industrial computer is turned off, the power switch of the control panel is turned off, and then the system restart switch is turned on, the time relay and the UPS are powered again, and the system is started.

[0013] In another aspect, an intelligent power supply control method based on the above laser drilling system is provided, comprising the following steps: The starting step: closing the power switch of the control panel, the power contactor is powered on, the UPS and the time relay are powered on, the time relay is actuated to start the UPS, and the UPS outputs 220V power supply to the PLC power supply, the analog power supply and the industrial computer power supply; The normal working step: the UPS is directly powered by the mains, and the inverter does not work; The external power failure processing step: when the external power is off, the UPS software executes a shutdown countdown, and when the countdown is over, the software controls the industrial computer to execute a soft shutdown program and controls the UPS to shut down, so that the PLC power supply, the time relay and the industrial computer lose power; The normal shutdown step: after executing the shutdown through the human-computer operation interface of the industrial computer, the power switch of the control panel is turned off, the power contactor loses power, the analog power supply, the PLC power supply and the industrial computer input power supply are disconnected, but the UPS and the time relay remain powered on until the external power supply disappears; The fast shutdown and restart step: after executing the shutdown through the human-computer operation interface of the industrial computer, the power switch of the control panel is turned off, and then the system restart switch is turned on, so that the time relay and the UPS are re-powered, and the system is restarted.

[0014] As a preferred technical solution, in the starting step, after the time relay is powered on, its normally open contact is closed and the normally closed contact is disconnected, providing an enable signal to the UPS.

[0015] As a preferred technical solution, in the external power failure processing step, the UPS software maintains the UPS output during the shutdown countdown until the soft shutdown of the industrial computer is completed.

[0016] As a preferred technical solution, in the normal shutdown step, after the industrial computer is turned off, the power switch of the control panel is turned off, but the UPS and the time relay are continuously powered by the mains until the mains are interrupted.

[0017] Compared with the prior art, the technical solution of the present application has the following beneficial effects: in the traditional scheme, after the mains power is off, the UPS can only provide a short delay, and the power supply is hard cut off as soon as the time is up, and the industrial computer may damage the system and lose data due to sudden power failure. The present application creatively introduces a time relay as a key control node and forms a linkage with the UPS software. When the external power is off, the UPS software starts a shutdown countdown. After the countdown is over, the software first executes a soft shutdown program of the industrial computer to ensure the safe saving of the operating system and application data. After the soft shutdown is completed, the software controls the UPS itself to shut down. The shutdown of the UPS causes the output to lose power, and then the time relay coil loses power, and finally the control loop is completely disconnected through the hardware contact. The core is to use the time relay as a state holding and final execution unit to gain valuable execution time for the software shutdown process.

[0018] The application realizes a collaborative control system taking a "time relay" as a core hub, which organically integrates UPS hardware, UPS monitoring software, industrial computers, main power contactors and other components. The system defines and executes various software and hardware linkage control logic (including intelligent start, power-off protection soft shutdown, normal shutdown and fast restart), ensures that the laser punching system can realize orderly, safe and reliable power supply management and shutdown control under various power supply conditions, effectively solves the problems of data damage and system risk caused by sudden power failure, and improves the efficiency of equipment operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 A schematic diagram of an intelligent control laser punching system framework is provided for the application. Fig. 2 A schematic diagram of an intelligent power supply control method flow of a laser punching system is provided for the application. Fig. 3 A schematic diagram of the circuit principle of the power supply control method is provided for the application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0021] Please refer to Figs. 1-3 The main functions of the system and method are: Firstly, an intelligent control laser punching system includes an uninterrupted power supply (UPS), a time relay and a power contactor. The power contactor is connected to a three-phase 380V input power supply and is controlled by a power switch of a control panel. The time relay is connected to the start 24V power supply of the UPS and is used to control the enable signal of the UPS. The output of the UPS is connected to the power supply of a programmable logic controller (PLC), an analog power supply and an industrial computer, which supplies power to the laser punching control system. When the power switch of the control panel is turned to ON, the power contactor is powered on, the UPS and the time relay are powered on, the time relay is actuated to start the UPS, and the 220V power output of the UPS is supplied to the power supply of the PLC, the analog power supply and the industrial computer. When the external power is off, the UPS software performs a shutdown countdown, and when the countdown is over, the control computer is controlled to perform a soft shutdown program and the UPS is controlled to shut down, after which the PLC power supply is powered off, the time relay is powered off, and the control computer is powered off; When normally shutting down, after executing the shutdown through the human-computer interface of the control computer, the control panel power switch is turned to OFF, the power contactor is powered off, the analog power supply, the PLC power supply, and the control computer input power supply are disconnected, but the UPS and the time relay remain powered until the external power supply disappears; When quickly shutting down and restarting, after executing the shutdown through the human-computer interface of the control computer, the control panel power switch is turned to OFF, and then the system restart switch is turned to ON to restart the system.

[0022] Preferably, the time relay includes normally open contacts and normally closed contacts, and when the time relay coil is powered, the normally open contacts are closed and the normally closed contacts are disconnected, providing an enable signal to the UPS.

[0023] Preferably, in the normal working state, the UPS is directly powered by the mains and the inverter does not work.

[0024] Preferably, when the external power is off, the UPS software enters a shutdown countdown state, and after the countdown is over, the control computer soft shutdown program and the UPS shutdown program are executed in sequence.

[0025] Preferably, in the normal shutdown mode, after the control computer is turned off, the control panel power switch is turned off and the power contactor is disconnected, but the UPS and the time relay continue to be powered by the mains until the mains are interrupted.

[0026] Preferably, in the quick shutdown and restart mode, after the control computer is turned off, the control panel power switch is turned off, and then the system restart switch is turned on, the time relay and the UPS are powered again, and the system starts.

[0027] Secondly, an intelligent power supply control method based on the above laser drilling system is proposed, which includes the following steps: The starting step: closing the control panel power switch, the power contactor is powered on, the UPS and the time relay are powered on, the time relay is actuated to start the UPS, and the UPS outputs 220V power to the PLC power supply, the analog power supply, and the control computer power supply; The normal working step: the UPS is directly powered by the mains and the inverter does not work; The external power-off processing step: when the external power is off, the UPS software performs a shutdown countdown, and when the countdown is over, the control computer is controlled to perform a soft shutdown program and the UPS is controlled to shut down, making the PLC power supply, the time relay, and the control computer lose power; Normal shutdown step: After executing shutdown through the human-computer interface of the industrial computer, the power switch of the control panel is turned off, the power contactor loses power, the analog power supply, the PLC power supply, and the input power supply of the industrial computer are disconnected, but the UPS and the time relay remain powered until the external power supply disappears. Quick shutdown and restart step: After executing shutdown through the human-computer interface of the industrial computer, the power switch of the control panel is turned off, and then the system restart switch is turned on, so that the time relay and the UPS are powered again, and the system restarts.

[0028] Preferably, in the startup step, after the time relay is powered on, its normally open contact is closed and the normally closed contact is opened, providing an enable signal to the UPS.

[0029] Preferably, in the external power failure processing step, the UPS software maintains the UPS output during the shutdown countdown until the industrial computer soft shutdown is complete.

[0030] Preferably, in the normal shutdown step, after the industrial computer is turned off, the control panel power switch is turned off, but the UPS and the time relay are continuously powered by the mains until the mains are interrupted The scheme of the present application is not a simple application of general UPS functions, but a highly customized design closely combined with the power supply requirements and control characteristics of the laser drilling system (including PLC, industrial computer, analog module, and other key components). It solves several pain points in this specific scenario: (1) Prevents loss of laser processing data (through soft shutdown). (2) Prevents damage to industrial computer system files (through soft shutdown). (3) Improves device restart efficiency (through quick restart mode). (4) Clearly defines the operation process in different shutdown scenarios, reducing the risk of misoperation.

[0031] Preferably, an intelligent power management module can also be introduced: an intelligent power management module based on a microcontroller (MCU) or programmable logic controller (PLC) is integrated in the laser drilling power supply system and communicates with the UPS uninterruptible power supply. Through RS-485, CAN bus, or Ethernet industrial communication protocols, real-time monitoring of power grid status, UPS input and output parameters, and device operating status is performed. When detecting power grid abnormalities or power failure, the intelligent module can automatically trigger UPS switching and send instructions to the laser control system to ensure stable power supply during the switching process and avoid equipment damage due to voltage fluctuations.

[0032] Preferably, the power state awareness and response mechanism can also be increased: embed power state awareness algorithm in the control software, combined with the remaining capacity of the battery of the UPS, discharge rate, input voltage and other parameters for real-time analysis. When the UPS enters the power supply mode, the control program should immediately start the preset "safety mode", including reducing the laser power output, suspending high energy consumption operation, triggering emergency cooling system, etc. At the same time, through the firmware logic control, ensure that only the minimum maintenance operation is performed when the UPS is powered, to prolong the endurance time of the UPS, protect the saving of critical data and the stability of the equipment state. Specifically, the following steps can be included to achieve: 1. Design a multi-level power state monitoring system: through the integration of high-precision current, voltage and power sensors, realize real-time state awareness of the laser drilling power supply, including input power stability, output load fluctuation and UPS switching state and other key parameters. Combined with digital signal processor (DSP) or programmable logic controller (PLC) for data acquisition and analysis, establish a power state evaluation model to judge abnormal working conditions and trigger protection mechanism, ensure that the laser system can quickly respond when the power supply is abnormal, and protect the safety of the equipment.

[0033] 2. Implement intelligent power management based on communication protocol: use CAN bus, Modbus RTU or Ethernet communication protocol to realize data interaction between laser power supply and UPS system, realize real-time sharing of power state. By configuring the intelligent communication interface of the UPS, it can actively send power switching, battery status, remaining discharge time and other information to the control system, and the control system can dynamically adjust the working mode of the laser according to these information, such as entering low-power standby state or triggering emergency shutdown process, to avoid equipment damage or processing abnormalities caused by power failure.

[0034] 3. Introduce adaptive power control algorithm: develop power regulation algorithm based on adaptive control theory (such as fuzzy control, PID self-tuning) to cope with transient voltage changes during power grid fluctuations or UPS switching. The algorithm can dynamically adjust output parameters according to real-time data provided by the power state awareness module to ensure the continuity and stability of the laser power supply. After the UPS starts, the system can gradually restore the laser power output to realize smooth transition and avoid processing interruption or equipment damage caused by power supply switching.

[0035] 4. Establishing a collaborative protection mechanism between UPS and laser power supply: Configure an intelligent power-off protection module in the UPS system, and link it with the laser power supply control system to achieve seamless connection of power-off protection. For example, when detecting abnormality of the main power supply, the UPS can preferentially supply power to the laser, and send a signal to the laser power supply through the control logic module to make it enter a protective shutdown state. At the same time, the system can set different power-off time thresholds, adjust the operation strategy of the laser according to the remaining power supply capacity of the UPS, such as prolonging the preheating time, reducing the output power, etc., to ensure the continuity of critical processing processes.

[0036] 5. Integrating remote monitoring and fault prediction functions: Through the deployment of an industrial Internet of Things (IIoT) platform, upload power supply status perception and UPS operation data to a cloud server to realize remote monitoring and fault prediction. The system can analyze power supply failure modes based on historical data and machine learning algorithms to provide early warning of possible power-off risks or UPS performance degradation issues. At the same time, combined with edge computing nodes, local rapid response is realized to ensure that power-off protection can still be executed relying on local control strategies in the event of communication interruption, improving the intelligence and reliability of the entire laser drilling system.

[0037] Preferably, fast shutdown and restart control can also be referenced: Under the condition of UPS power supply, a fast shutdown process is realized through software to ensure that data saving and device state caching are completed before the battery capacity is exhausted. The shutdown process should include gradually reducing laser output power, turning off auxiliary systems (such as air pumps, cooling pumps), recording operation logs, etc. Restart logic needs to determine whether there are safe restart conditions after the power grid is restored, and if the power grid voltage is stable and the UPS has switched back to the mains mode, then the device operation is restored in the preset order to avoid device damage or data loss due to unstable voltage or too fast restart. Specifically, the following steps can be included to achieve this: 1. Integrating dual power supply switching and UPS linkage control: Introduce an online UPS (Uninterruptible Power Supply) in the laser drilling power supply control system, and configure dual power supply input (mains and UPS). Through PLC or embedded controller, realize power supply switching logic, when the mains is interrupted, the UPS automatically takes over the power supply seamlessly. At the same time, during the power supply switching process, the control system should monitor the voltage fluctuation in real time to ensure that the laser output power is stable during power supply switching, avoiding equipment failure or data loss due to unstable voltage.

[0038] 2. Design a power outage data preservation and state caching mechanism: Add a power outage prediction module to the power control logic. Monitor the power fluctuations or voltage drop signals to trigger the data preservation process in advance. For example, when the voltage drop is detected to exceed the preset threshold, the system immediately writes the current operating parameters, processing progress, and control state to non-volatile memory (such as Flash or EEPROM). At the same time, use the UPS power supply time to cache critical control variables to the backup storage unit, ensuring that the operating state can be quickly restored when the power is restarted after a power outage.

[0039] 3. Implement phased logic control for fast shutdown and restart: In the case of power anomalies, the control system should execute the fast shutdown process according to priority. First, turn off high-power components (such as laser power modules), then turn off non-critical control modules, and finally save state information and turn off UPS power. When restarting, the system should follow the reverse order logic, first load the configuration parameters, then gradually start each module, ensuring that the device avoids hardware damage or data inconsistency caused by unstable power supply during the restart process.

[0040] 4. Introduce redundant power supply monitoring and intelligent decision-making system: Deploy redundant power supply monitoring modules in the power control architecture. Collect power supply state information of the city power, UPS, and key equipment through multi-channel sensors. Use digital signal processing (DSP) or FPGA to realize real-time analysis of power supply state, and combine expert systems for intelligent decision-making. When detecting abnormal power supply state, the system can automatically switch to UPS power supply and execute the preset protection strategy, such as reducing the output power of the laser or pausing the processing flow, to maximize the protection of the device safety.

[0041] 5. Build remote power outage protection and log recording function based on communication protocol: Integrate Modbus TCP, CAN bus, or industrial Ethernet communication protocols in the power control system to realize data interaction with the host computer or remote monitoring system. When a power outage occurs, the system can send an alarm signal and power outage event record to the remote server through the communication interface. At the same time, synchronize log data locally and in the cloud to ensure that even if the device is powered off, the key operation log can be saved completely, facilitating subsequent fault analysis and recovery operations.

[0042] Preferably, the data protection mechanism under power outage can also be enhanced: Integrate non-volatile memory (NVRAM, EEPROM, or Flash) modules in the laser control system for fast saving of key operating parameters and operating state in the event of sudden power outage. Combined with the delay power supply capability of the UPS, the current operating state can be written to the memory during the UPS power supply period after the power grid interruption. In addition, use the file system log recording mechanism to ensure that the state can be restored by reading the data in the memory after the power is restored, thereby ensuring the integrity of the data and the continuity of the operation. Specifically, the following steps can be implemented: 1. Constructing dual power supply redundancy architecture: In the laser drilling power supply control system, an online uninterruptible power supply (UPS) is introduced as a transition bridge between the main power supply and backup power supply. By configuring dual power input and parallel operation of UPS, seamless switching is realized when the main power fails. At the same time, the UPS needs to have an intelligent power management module (IPM) that can monitor the power grid voltage, frequency and load changes in real time to ensure power supply continuity. In addition, the system should be configured with a redundant power module (Redundant Power Supply, RPS) to realize N+1 power backup, avoiding single point failure leading to system power failure.

[0043] 2. Introducing data protection and non-volatile storage mechanism: In the UPS power supply system, a flash-based non-volatile storage unit (NVMe SSD or eMMC) is integrated to quickly write critical running data (such as laser parameters, process parameters, control instructions, etc.) to the storage device at the moment of power failure, preventing data loss. Hardware-level power failure detection circuits (such as voltage monitoring chip LM2903) can be used in conjunction with firmware interrupt handling programs to achieve millisecond-level data protection response. At the same time, combined with the data rollback mechanism in the power-off state, the system can be restored to the last stable state after power-on.

[0044] 3. Implementing intelligent power management protocol based on UPS: By integrating an intelligent control module (such as an embedded controller based on ARM Cortex-A series) in the UPS, communication and collaborative control with the laser drilling power supply controller are realized. Real-time data exchange is carried out using Modbus TCP / IP or CAN bus protocol, so that the UPS can dynamically adjust the output voltage and frequency according to the load change, optimizing power efficiency. At the same time, the UPS should have remote monitoring function, support SCADA system access, realize real-time monitoring and early warning of power supply status, remaining battery capacity, load change, etc.

[0045] 4. Adopting power failure prediction and preprocessing algorithm: Based on the intelligent monitoring system of UPS, the power grid state data can be collected, and machine learning algorithm (such as time series prediction model LSTM) can be used to predict possible power failure events. Once voltage sag or frequency anomaly is detected, the system can immediately start the preprocessing process, including saving the current running state, reducing the laser output power to a safe level, shutting down non-critical devices, etc. This method can effectively reduce the impact of power failure on system operation, ensuring the continuity and data integrity of the laser drilling process.

[0046] 5. Integration of Battery Management System (BMS) with UPS: To ensure stable power supply during power failure, a Battery Management System (BMS) needs to be integrated within the UPS. The BMS should have functions such as battery state monitoring (SOC, SOH, temperature), equalization charging and discharging control, fault diagnosis and alarm. Through communication with the UPS controller, intelligent prediction and maintenance of battery life are realized to ensure that the UPS can provide sufficient backup power time during power failure. At the same time, the BMS should have remote upgrade and diagnosis capabilities to improve system reliability and maintenance efficiency.

[0047] Preferably, a remote monitoring and emergency response system can also be built: by uploading UPS status, power switching events, device operating parameters and other data to a remote monitoring platform (such as an industrial Internet of Things platform or cloud server), remote monitoring of the laser drilling power supply system is realized. When the system detects a power failure event, an alarm is automatically triggered and the operator is notified through SMS, email or APP push. At the same time, the remote system can assist in performing remote shutdown, restart or diagnosis operations to improve fault response speed. In addition, historical data is analyzed to optimize UPS configuration and power management strategies, improving the overall power supply reliability and safety of the system. Specifically, the following steps are implemented: 1. Build a remote monitoring system based on industrial Internet of Things (IIoT): by deploying industrial-grade Internet of Things sensors and edge computing gateways, real-time collection of key parameters such as voltage, current, power and temperature of the laser drilling power supply is realized, and transmission to the cloud platform through 5G or industrial Ethernet is realized. The cloud platform can use a time series database for storage and analysis, and combine with digital twin technology to build a virtual model of the power supply system, realize real-time mirror monitoring and trend prediction of the device state, ensure that abnormal conditions can be identified in advance and trigger response mechanisms.

[0048] 2. Integration of industrial protocol conversion and SCADA system: using industrial communication protocols such as OPC UA, Modbus TCP, the laser power supply control system and the remote monitoring platform are connected for data, realizing remote control of power on / off, power regulation and other operations. The SCADA system can configure multi-level alarm strategies such as overvoltage, overcurrent, temperature overrun, etc., and through OPC client for real-time data reading, realize visual monitoring of power supply state and real-time adjustment of automatic control strategy.

[0049] 3. Automation logic design for emergency response system: Deploy emergency control logic based on PLC or industrial PC, combine with digital twin and digital thread technology, realize real-time analysis and judgment on power supply running state. When the system detects abnormality (such as voltage drop, current surge, temperature rise, etc.), it can automatically start emergency protection program, such as gradually reducing output power, switching to backup power, forced power-off, etc., while pushing event information to the mobile terminal of operation and maintenance personnel or control center, ensuring isolation of faults in the shortest time and avoiding equipment damage.

[0050] 4. Introduce AI predictive maintenance and fault diagnosis module: Use machine learning algorithms (such as random forest, support vector machine, deep neural network) to train historical operation data and build power supply fault prediction model. The system can provide early warning and maintenance suggestions for possible faults. In addition, the knowledge graph-based fault diagnosis system can automatically retrieve relevant fault cases and solutions when an anomaly occurs, assisting operation and maintenance personnel to quickly judge and handle, improving emergency response efficiency and accuracy.

[0051] Examples Reference Figs. 1-3 The embodiment specifically gives an implementation and working principle: (I) Start Ensure that the input three-phase 380V input is normal, and the air switch in the electric control cabinet is closed. Turn the panel power switch knob to ON, and the power contactor is powered on. The UPS 24V power input is 220V, the UPS 24V power supplies the time relay coil, and the enable signal is provided to the enable end. The time relay normally open contact is closed, and the normally closed contact is opened. It is equivalent to that the UPS switch is in the open state, and the UPS starts normal work, outputs 220V, and supplies power to the PLC power supply, analog power supply and industrial computer power supply.

[0052] (II) Normal working state The UPS output 220V is directly powered by the mains, and the inverter does not work.

[0053] (III) UPS software control soft shutdown caused by external power failure (when using UPS software) When the external power is off or the air switch in the control cabinet is open, the UPS software enters the shutdown countdown state, and when the countdown is over, the industrial computer soft shutdown program is executed, and the UPS shutdown program is executed. Execute the UPS software shutdown program, and after the UPS is shut down, the PLC power supply loses power, the time relay coil loses power, and the industrial computer loses power.

[0054] (IV) Normal shutdown (without UPS software shutdown) Click the shutdown on the human-computer interface of the industrial computer, and wait for the system of the industrial computer to be closed. Then, select OFF for the panel power switch, and the coil of the power contactor loses power. The analog power supply, the PLC power supply and the 220V input of the industrial computer are disconnected. At this time, the analog power supply and the newly installed power supply are continuously powered. The newly installed power supply and the UPS power supply are both input with 220V power supply, and the time relay enable signal is maintained until the external power supply disappears. Then, the time relay starts the delay power-off program.

[0055] (five) quick shutdown and restart When the laser drilling system needs to be restarted, click the shutdown icon on the human-computer interface of the industrial computer, and wait for the system of the industrial computer to be closed. Then, select OFF for the panel power switch, and turn the system restart knob to ON. Then, wait for the system to start.

[0056] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An intelligent controlled laser drilling system, characterized in that, The UPS uninterruptible power supply, a time relay and a power contactor are included. The power contactor is connected to a three-phase 380V input power supply and is controlled by a power switch of a control panel. The time relay is connected to a 24V power supply of the UPS and is used to control an enable signal of the UPS. An output of the UPS is connected to a PLC power supply, an analog power supply and an industrial computer power supply to supply power to the laser drilling control system. When the power switch of the control panel is turned to ON, the power contactor is powered, the UPS and the time relay are powered, the time relay is activated to start the UPS, and the UPS outputs 220V power to the PLC power supply, the analog power supply and the industrial computer power supply. When the external power is cut off, the UPS software performs a shutdown countdown, and when the countdown is over, the industrial computer is controlled to execute a soft shutdown program and the UPS is controlled to shut down, after which the PLC power supply, the time relay and the industrial computer lose power. When normally shutting down, after executing the shutdown through the human-machine interface of the industrial computer, the power switch of the control panel is turned to OFF, the power contactor loses power, the analog power supply, the PLC power supply and the industrial computer input power supply are disconnected, but the UPS and the time relay remain powered until the external power supply disappears. When quickly shutting down and restarting, after executing the shutdown through the human-machine interface of the industrial computer, the power switch of the control panel is turned to OFF, and then the system restart switch is turned to ON to restart the system.

2. The laser drilling system of claim 1, wherein, The time relay includes a normally open contact and a normally closed contact, when the time relay coil is powered, the normally open contact is closed and the normally closed contact is disconnected to provide an enable signal to the UPS.

3. The laser drilling system of claim 1, wherein, In a normal working state, the UPS is directly powered by the mains and the inverter does not work.

4. The laser drilling system of claim 1, wherein, The UPS software enters a shutdown countdown state when the external power is cut off, and after the countdown is over, the industrial computer soft shutdown program and the UPS shutdown program are executed in sequence.

5. The laser drilling system of claim 1, wherein, In a normal shutdown mode, after the industrial computer is turned off, the power switch of the control panel is turned off, the power contactor is disconnected, but the UPS and the time relay continue to be powered by the mains until the mains are interrupted.

6. The laser drilling system of claim 1, wherein, In a quick shutdown and restart mode, after the industrial computer is turned off, the power switch of the control panel is turned off, and then the system restart switch is turned on, the time relay and the UPS are powered again, and the system starts.

7. A method for intelligent power supply control based on the laser drilling system according to any one of claims 1-6, characterized in that, The method includes the following steps: A start step: the power switch of the control panel is turned on, the power contactor is powered, the UPS and the time relay are powered, the time relay is activated to start the UPS, and the UPS outputs 220V power to the PLC power supply, the analog power supply and the industrial computer power supply; A normal working step: the UPS is directly powered by the mains and the inverter does not work; An external power interruption processing step: when the external power is cut off, the UPS software performs a shutdown countdown, and when the countdown is over, the industrial computer is controlled to execute a soft shutdown program and the UPS is controlled to shut down, after which the PLC power supply, the time relay and the industrial computer lose power; A normal shutdown step: after executing the shutdown through the human-machine interface of the industrial computer, the power switch of the control panel is turned off, the power contactor loses power, the analog power supply, the PLC power supply and the industrial computer input power supply are disconnected, but the UPS and the time relay remain powered until the external power supply disappears; A quick shutdown and restart step: after executing the shutdown through the human-machine interface of the industrial computer, the power switch of the control panel is turned off, and then the system restart switch is turned on to restart the system. Quick shutdown and restart procedure: after the shutdown is executed through the human-computer interface of the industrial computer, the power switch of the control panel is turned off, then the system restart switch is turned on, so that the time relay and the UPS are powered again, and the system is restarted.

8. The method of claim 7, wherein, In the startup procedure, after the time relay is powered, its normally open contact is closed and its normally closed contact is opened, and an enable signal is provided to the UPS.

9. The method of claim 7, wherein, In the external power failure processing procedure, the UPS software maintains the UPS output during the shutdown countdown until the soft shutdown of the industrial computer is completed.

10. The method of claim 7, wherein, In the normal shutdown procedure, after the industrial computer is turned off, the power switch of the control panel is turned off, but the UPS and the time relay are continuously powered by the commercial power until the commercial power is interrupted.

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