Industrial gas cylinder filling process safety control method and system
By acquiring cylinder label data and identity verification information, and combining this with pipeline pressure change curve analysis, the safety supervision issues before and after filling industrial gas cylinders were resolved, real-time control of the filling process was achieved, and safety hazards were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG TEJIAN LUAN ENG TECH SERVICE CO LTD
- Filing Date
- 2023-11-27
- Publication Date
- 2026-07-07
AI Technical Summary
Existing industrial gas cylinder management schemes cannot conduct safety supervision before filling, leading to safety hazards. Furthermore, the filling process lacks control functions, making it impossible to avoid and handle safety issues in a timely manner.
By acquiring gas cylinder label data and operator identity verification information, the legality is determined, and pipeline pressure changes are monitored in real time during the filling process. The pressure change curve is used to determine whether the filling is normal, and filling information is periodically acquired for early warning, thus achieving safety supervision before filling and control during the process.
It enables safety supervision before gas filling, timely cessation of abnormal filling, early warning of abnormal situations, and reduces the risk of safety hazards and accidents.
Smart Images

Figure CN117704270B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of safety supervision technology, and in particular relates to a safety control method and system for the filling process of industrial gas cylinders. Background Technology
[0002] By effectively regulating the filling and use of industrial gas cylinders, and preventing the occurrence of unqualified cylinders, cylinders exceeding their service life, and cylinders of different gases being mixed, the number of safety accidents can be reduced.
[0003] The inventors discovered that while current industrial gas cylinder management solutions can track multiple stages of cylinder filling, circulation, and use through electronic tags, they only have the function of tracing and querying safety issues. They do not conduct safety supervision before filling or control during the filling process, resulting in the inability to avoid and handle safety issues in a timely manner, and still pose significant safety hazards. Summary of the Invention
[0004] To address the aforementioned problems, this invention proposes a safety control method and system for the filling process of industrial gas cylinders. By judging the legality of label data and identity verification information, this invention achieves safety supervision before gas filling. Furthermore, it stops gas filling when abnormal pressure is detected during the filling process and issues an early warning when abnormality is detected in the gas cylinder during the filling process, thus realizing control functions during the filling process and enabling timely avoidance and handling of safety issues.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:
[0006] In a first aspect, the present invention provides a safety control method for the filling process of industrial gas cylinders, comprising:
[0007] Obtain the label data of the gas cylinders, as well as the identity verification information of the operators;
[0008] The legality of the label data and identity verification information is judged. If it is legal, gas filling is allowed; otherwise, gas filling is not allowed.
[0009] Analyze the pipeline pressure change curves at each stage of the gas filling process, and determine whether the filling is normal based on the slope and characteristic points of the pressure change curves. If it is normal, continue the gas filling; otherwise, stop the gas filling.
[0010] The system periodically acquires relevant information about the gas cylinders during the filling process and determines whether any abnormalities occur. If an abnormality is detected, an alert is issued; otherwise, normal monitoring is conducted.
[0011] Furthermore, before filling, the capacity, pressure, service life, filling medium, manufacturing date, production unit, inspection date, filling station name, and last filling time of the gas cylinder are checked using the label data, and gas is filled into the gas cylinders that meet the requirements.
[0012] Furthermore, the legitimacy of the operator's identity is determined through a two-layer authentication process using employee card recognition and biometric identification.
[0013] Furthermore, the pressure of the main pipeline and manifold branch pipelines during the filling process is monitored in real time. When an abnormality occurs, an early warning is issued. If the abnormality continues and the hidden danger is not eliminated within a specified time, the filling is stopped.
[0014] Furthermore, when the pressure change within a set time is within a preset range, the current filling process is in normal filling mode; when the pressure reaches the set filling threshold and the change becomes slow, the current state is full; when the pressure drops to zero within a set time, the current filling process is in the state of completing one filling operation.
[0015] Furthermore, if the heartbeat data of the control system in the filling system is not received within the specified time, it is determined that the operator has performed an unauthorized power outage operation on the control system, and an early warning is issued.
[0016] Furthermore, if the warning rectification is not carried out within the specified time, the filling operation will be prohibited.
[0017] Secondly, the present invention also provides a safety control system for the filling process of industrial gas cylinders, comprising:
[0018] The data acquisition module is configured to: acquire the label data of the gas cylinders and the identity verification information of the operators;
[0019] The identity verification module is configured to: determine the legality of the tag data and identity verification information; if legal, gas filling is allowed; otherwise, gas filling is not allowed.
[0020] The pressure judgment module is configured to analyze the pipeline pressure change curve at each stage of the gas filling process, and determine whether the filling is normal based on the slope and characteristic points of the pressure change curve. If it is normal, the gas filling continues; otherwise, the gas filling stops.
[0021] The early warning module is configured to periodically acquire relevant information about the gas cylinders during the filling process and determine whether any abnormalities occur. If an abnormality occurs, an early warning is issued; otherwise, normal monitoring is performed.
[0022] Thirdly, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the safety control method for the filling process of industrial gas cylinders as described in the first aspect.
[0023] Fourthly, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the safety control method for the industrial gas cylinder filling process described in the first aspect.
[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0025] This invention first verifies the legality of the label data and identity verification information. If legal, gas filling proceeds; otherwise, it is not permitted. Then, during the gas filling process, the pipeline pressure change curve at each stage is analyzed. The slope and characteristic points of the pressure change curve determine whether the filling is normal. If normal, gas filling continues; otherwise, it stops. Simultaneously, relevant information about the gas cylinder is periodically acquired during the filling process, and any abnormalities are identified. If an abnormality is detected, an early warning is issued; otherwise, normal monitoring continues. By verifying the legality of the label data and identity verification information, safety supervision before gas filling is achieved. Furthermore, by stopping gas filling when an abnormal pressure is detected and issuing an early warning when an abnormality is detected in the gas cylinder, the invention implements control functions during the filling process, enabling timely prevention and handling of safety issues. Attached Figure Description
[0026] The accompanying drawings, which form part of this embodiment, are used to provide a further understanding of this embodiment. The illustrative embodiments and their descriptions are used to explain this embodiment and do not constitute an improper limitation of this embodiment.
[0027] Figure 1 This is a schematic diagram of the monitoring system structure according to Embodiment 1 of the present invention;
[0028] Figure 2 This is a schematic diagram of the filling control system of Embodiment 1 of the present invention;
[0029] The components include: 1. Cylinder label; 2. Information management client; 3. Traceability platform; 4. Filling control system; 41. Cylinder label; 42. Employee card; 43. Handheld terminal; 44. Cylinder to be filled; 45. First branch pressure sensor; 46. Second branch pressure sensor; 47. First branch pressure gauge; 48. Second branch pressure gauge; 49. First branch electric valve; 410. Second branch electric valve; 411. First branch indicator light; 412. Second branch indicator light; 413. First branch manual valve; 414. Second branch manual valve; 415. Main pipeline pressure gauge; 416. Main pipeline pressure sensor; 417. Control system; 418. Main pipeline manual valve; 419. Vaporizer; 420. Booster pump motor; 421. Liquid booster pump; 422. Liquid / gas storage tank; 5. Monitoring client; 6. Mobile client. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0031] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0032] Example 1:
[0033] The use of industrial gases is increasing, with common industrial gases such as oxygen, nitrogen, argon, and carbon dioxide finding wider applications in metal welding, metal cutting, medical, chemical, and food industries. However, the safety hazards caused by improper use are also increasing, making the safe use of gases increasingly important. Pressure vessels used to hold these gases are crucial; improper use can lead to numerous safety accidents. Therefore, effective measures are needed to efficiently supervise the filling and use of gas cylinders, preventing the use of substandard cylinders, cylinders exceeding their service life, and the mixing of cylinders containing different gases, thereby reducing the occurrence of safety accidents. Currently, the following safety hazards exist in gas filling:
[0034] Gas leaks can harm people and the environment, especially flammable, explosive, and toxic gases. Leaks can cause serious consequences such as fires, explosions, asphyxiation, and poisoning. Therefore, it is essential to carefully check the equipment's operating status and verify inspection information during the gas filling process to prevent leaks.
[0035] Excessive or insufficient gas pressure during filling poses risks to equipment and personnel safety. Excessive pressure may damage or even explode the equipment; insufficient pressure will not only affect the filling capacity but may also disrupt the normal operation of the gas equipment. Therefore, it is crucial to control the gas pressure during filling to avoid situations where it is too high or too low.
[0036] Gas cylinders that have exceeded their service life and have not been inspected by the due date need to be inspected regularly to ensure safe filling. Only qualified cylinders are allowed to continue to be used. The pre-filling inspection process verifies the cylinder's scheduled inspection information and real-time operating status to prevent the continued filling and use of expired or faulty cylinders.
[0037] Mixing different types of gases during filling can lead to equipment malfunctions or hazards. For example, mixing flammable gas and oxygen could cause a fire or explosion. Therefore, it is essential to carefully check the types of gas cylinders before filling to ensure that no mixing occurs.
[0038] Safety training for filling operators is crucial. During gas filling, operators often need to work at heights and perform inverted operations, posing significant safety hazards. Furthermore, operators must use gas cylinders and other equipment; improper use could injure themselves or others. Therefore, training and guidance are essential for operators during gas filling to ensure their safety. It is imperative that qualified and designated professionals operate the equipment.
[0039] Current industrial gas cylinder management solutions, while enabling electronic tags to track multiple stages of cylinder filling, circulation, and use, only provide traceability and query functions for safety issues. They lack pre-filling safety supervision and control functions during the filling process, resulting in the inability to promptly prevent and address safety problems, and still pose significant safety hazards.
[0040] To address the above problems, this embodiment provides a safety control method for the filling process of industrial gas cylinders, including:
[0041] Acquire the label data of the gas cylinders and the identity verification information of the operators; and acquire real-time status information such as temperature and pressure during the gas cylinder filling process;
[0042] The legality of the label data and identity verification information is judged. If it is legal, gas filling is allowed; otherwise, gas filling is not allowed.
[0043] Analyze the pipeline pressure change curves at each stage of the gas filling process, and determine whether the filling is normal based on the slope and characteristic points of the pressure change curves. If it is normal, continue the gas filling; otherwise, stop the gas filling.
[0044] The system periodically acquires relevant information about the gas cylinders during the filling process and determines whether any abnormalities occur. If an abnormality is detected, an alert is issued; otherwise, normal monitoring is conducted.
[0045] This embodiment achieves safety supervision before gas filling by judging the legality of label data and identity verification information. It stops gas filling when the pressure is abnormal during the filling process and issues an early warning when the gas cylinder is abnormal during the filling process, thus realizing the control function in the filling process and enabling timely avoidance and handling of safety issues.
[0046] The method in this embodiment is a multi-dimensional management approach that controls the filling process through gas cylinder information traceability, filling process monitoring, and filling personnel management, effectively reducing safety hazards and the occurrence of accidents. To implement the method in this embodiment, a safety control system for the industrial gas cylinder filling process and a filling control system are also provided, specifically:
[0047] like Figure 1 As shown, firstly, the inspection-qualified industrial gas cylinders are registered with the traceability platform 3 via the information management client 2, and a uniquely identified cylinder label 1 is assigned. Gas cylinders in circulation require periodic inspections, and information on cylinders that pass these inspections is also entered into the traceability platform 3. The cylinder label 1 is uniquely linked to the cylinder, and users and regulatory authorities can remotely log in to the traceability platform 3 via mobile client 6 or regulatory client 5 to query relevant information about the cylinders linked to it by reading the label. During the filling process, filling personnel use a dedicated mobile client 6 to verify and determine the compliance of the cylinders to be filled, ensuring that only qualified cylinders are allowed to enter the filling process. Thus, personnel in different roles at each stage can use the traceability platform 3 to manage the entire process of gas cylinder traceability from production, filling, distribution, use to disposal.
[0048] Gas cylinders that have passed inspection will be registered and entered into the traceability system, and each cylinder will be assigned a unique identification code before being put into use. Before filling a gas cylinder, information such as its capacity, pressure, service life, filling medium, manufacturing date, production unit, inspection date, filling station name, and last filling time will be checked. Only gas cylinders that meet the requirements will be allowed to be filled, and the filling system will be authorized to enter the filling state; otherwise, the filling system will not be able to operate.
[0049] like Figure 2As shown, the control system 417 collects traceability information data in the filling process through the registered gas cylinder tag 41, employee card 42, and handheld terminal 43, and records key data in the gas cylinder filling process; the control system 417 monitors the filling process and filling amount of the gas cylinder in real time through the main pipeline pressure sensor 416, the first branch pressure sensor 45, and the second branch pressure sensor 46, and judges the compliance of the filling process through information comparison and other methods; the control system 417 manages and controls the gas cylinder filling operation and filling amount through the first branch electric valve 49, the second branch electric valve 410, and the liquid pressurization pump 421, and prevents unauthorized filling operations, filling operations of unqualified gas cylinders, and non-compliant operations in the filling process, so as to avoid safety hazards in the filling process and the gas cylinder itself.
[0050] like Figure 2 As shown, employees who pass the assessment and are granted the corresponding qualifications are assigned an employee card 42 based on their certificate. Employees can only access the operation interface to operate the filling system by swiping their employee card on a handheld terminal 43; otherwise, they cannot operate the system. This measure ensures that only certified employees are qualified to perform filling operations. Simultaneously, the filling system is equipped with biometric identification devices to verify in real time whether the employee performing the filling operation is authorized. Therefore, this dual authentication system of employee cards and biometrics ensures that filling personnel are qualified employees who have passed the assessment, further guaranteeing the safety of gas cylinder filling.
[0051] like Figure 2 As shown, the filling workshop is equipped with a main pipeline pressure sensor 416, a first branch pressure sensor 45, a second branch pressure sensor 46, a main pipeline pressure gauge 415, a first branch pressure gauge 47, and a second branch pressure gauge 48. The control system 417 can monitor the pressure of the main pipeline and the two branches in real time by reading the pressure sensors 416, 45, and 46, and analyze the pressure change curves. By analyzing the patterns of pressure curve changes, it can determine whether the current filling is normal. Simultaneously, the main pipeline pressure gauge 415, 47, and 48 can display the current filling pressure value in real time. Using mechanical pressure gauges, the system can still monitor the pipeline's operating status in the event of a power outage. Gas cylinder filling has certain requirements for filling speed; excessive speed poses a risk of leakage and explosion, while excessively slow speed affects production efficiency. The control system can determine whether the current filling speed complies with safety regulations by reading the pressure sensors in the main pipeline and branch pipelines.
[0052] like Figure 2As shown, a first branch electric valve and a second branch electric valve 410 are installed on the branch. The two branches are filled alternately. When the employee scans the tags 41 on the gas cylinders 44 to be filled on the branch one by one using a handheld terminal 43, and the number reaches the set allowable filling quantity, the first branch electric valve 49 on the branch is allowed to be opened for filling. The pressure change of the first branch pressure sensor 45 can detect whether a filling operation cycle is completed. When a filling operation cycle is completed, the control system 417 will close the branch electric valve and determine whether the valve on the other branch is open according to the operator's operation process. If the operator has installed the gas cylinder on the branch and completed the tag scanning, the control system 417 will open the second branch electric valve on the other branch to carry out the filling process of the branch. If the operator has completed the current round of filling and has not continued to scan electronic tags, the electric valve on the other branch will not be opened. In case of emergency during the filling process, the operator can manually open and close the valves using the first branch manual valve 413 and the second branch manual valve 414.
[0053] like Figure 2 As shown, the liquefied gas in the liquid-gas storage tank 422 is pressurized by the liquid pressurization pump 421, and then vaporized by the vaporizer 419. After vaporization, the liquid-gas enters the main pipeline. The main pipeline pressure sensor 416 can monitor the main pipeline pressure in real time, and the main pipeline pressure gauge 415 is a machine-type pressure gauge, allowing the operator to see the main pipeline pressure in real time, even during power outages. When the control system 417 detects that the pressure exceeds the preset warning value through the main pipeline pressure sensor 416, it will stop the operation of the pressurization pump motor 420, thereby ensuring that the main pipeline pressure does not exceed the limit.
[0054] like Figure 2 As shown, the control system 417 periodically communicates with the traceability platform 3 via the network. If the traceability platform finds that the control system 417 has not sent heartbeat data at the prescribed time, it may be that the filling station operator has performed an illegal power outage operation on the control system, bypassing the supervision of the traceability platform to carry out illegal gas cylinder filling. The traceability platform 3 will record this phenomenon as an anomaly and notify the regulatory authorities to take appropriate action.
[0055] The monitoring process in this embodiment may include the following:
[0056] The cylinder uses a ceramic label with a stainless steel base. The label is characterized by its ability to withstand high-temperature burning of 800 degrees Celsius, scratch resistance, corrosion resistance, impact resistance, strong rust resistance, and long service life.
[0057] Only qualified gas cylinders can be registered and entered into the traceability system, and assigned a unique identification code to the cylinder before it enters the usage stage. Before filling a gas cylinder, information such as its capacity, pressure, service life, filling medium, manufacturing date, production unit, inspection date, filling station name, and last filling time are checked. Only gas cylinders that meet the requirements are allowed to be filled, and the filling system is authorized to enter the filling state; otherwise, the filling system cannot operate.
[0058] The system monitors the pressure of the main pipeline and manifold branch pipelines in real time during the filling process and analyzes the pressure change curves. It determines whether the filling is proceeding normally based on the slope of pressure changes and pressure characteristic points at each stage of the filling process. When an abnormality occurs, the operator is alerted to conduct a safety inspection and eliminate potential hazards. If abnormalities persist and the operator fails to eliminate the hazards within the specified time period, the filling operation is automatically stopped.
[0059] Optionally, when the gas cylinder is connected to the filling branch and the gas cylinder valve and branch valve are opened, the gas pressure in the branch will change with different stages of the filling process. The filling stage is determined by the pressure curve and filling pressure characteristic points: the pressure sensor detects the filling curve of the branch pressure in real time. When the change in filling pressure within a fixed time is within a preset range, the current filling process is a normal filling process; when the filling pressure reaches the filling critical value and the change is slow, the current state is full; when the pressure sensor detects that the pressure drops rapidly to zero (relative value zero), the current filling process has completed one filling operation and the gas cylinder replacement operation is underway.
[0060] Employees who pass the assessment and are granted the corresponding qualifications will be assigned employee cards based on their certificates. Employees can only access the operating interface to operate the filling system by swiping their employee cards on a handheld terminal; otherwise, they cannot operate the system. This measure ensures that only certified employees are qualified to perform filling operations. Simultaneously, the filling system is equipped with biometric identification devices to verify in real time whether the employee performing the filling operation is authorized. Therefore, this dual authentication system of employee cards and biometrics ensures that filling personnel are qualified employees who have passed the assessment, further guaranteeing the safety of gas cylinder filling.
[0061] When idle, the filling control system periodically sends data to the traceability platform. When operating normally, it sends heartbeat packets carrying status data in real time. If the filling control system is bypassed by abnormal means to perform filling operations, the traceability platform will detect the anomaly and send a prompt message to the filling control system. If rectification is not carried out within the specified time, the filling control system will prohibit filling operations until it is reviewed and approved by the relevant departments.
[0062] The traceability platform records the filling and usage processes of gas cylinders, and data analysis provides a detailed understanding of the filling and usage of each cylinder. Relevant departments can access and compile statistics on gas cylinder filling data within their jurisdiction, thereby achieving efficient safety supervision.
[0063] The traceability data can also be used to effectively analyze whether there is any counterfeiting or use of fake gas cylinder labels.
[0064] Example 2:
[0065] This embodiment provides a safety control system for the filling process of industrial gas cylinders, including:
[0066] The data acquisition module is configured to: acquire the label data of the gas cylinder and the identity verification information of the operator; and acquire real-time status information such as temperature and pressure during the gas cylinder filling process.
[0067] The identity verification module is configured to: determine the legality of the tag data and identity verification information; if legal, gas filling is allowed; otherwise, gas filling is not allowed.
[0068] The pressure judgment module is configured to analyze the pipeline pressure change curve at each stage of the gas filling process, and determine whether the filling is normal based on the slope and characteristic points of the pressure change curve. If it is normal, the gas filling continues; otherwise, the gas filling stops.
[0069] The early warning module is configured to periodically acquire relevant information about the gas cylinders during the filling process and determine whether any abnormalities occur. If an abnormality occurs, an early warning is issued; otherwise, normal monitoring is performed.
[0070] The working method of the system is the same as the safety control method for the industrial gas cylinder filling process in Example 1, and will not be repeated here.
[0071] Example 3:
[0072] This embodiment provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the safety control method for the industrial gas cylinder filling process described in Embodiment 1.
[0073] Example 4:
[0074] This embodiment provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the safety control method for the industrial gas cylinder filling process described in Embodiment 1.
[0075] The above description is merely a preferred embodiment of this practice and is not intended to limit the scope of this practice. Various modifications and variations can be made to this practice by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this practice should be included within the protection scope of this practice.
Claims
1. A safety control method for the filling process of industrial gas cylinders, characterized in that, include: Obtain the label data of the gas cylinders, as well as the identity verification information of the operators; The legality of the label data and identity verification information is judged. If it is legal, gas filling is allowed; otherwise, gas filling is not allowed. Specifically, the legality of the operator's identity is determined by a two-layer authentication process of employee card recognition and biometric identification. The pipeline pressure change curves at each stage of the gas filling process are analyzed. The slope and characteristic points of the pressure change curves are used to determine whether the filling is normal. If it is normal, the gas filling continues; otherwise, the gas filling is stopped. When the pressure change within a set time is within a preset range, the current filling process is in a normal filling state. When the pressure reaches the set filling threshold and the change becomes slow, the current state is full. When the pressure drops to zero within a set time, the current filling process is considered to have completed one filling operation. The system periodically acquires relevant information about the gas cylinders during the filling process and determines whether any abnormalities occur. If an abnormality is detected, an early warning is issued; otherwise, normal monitoring is conducted. Specifically, if the system does not receive heartbeat data from the control system within the specified time, it is determined that the operator has performed an unauthorized power outage operation on the control system, and an early warning is issued. If the warning is not rectified within the specified time, the filling operation will be prohibited.
2. The safety control method for the filling process of industrial gas cylinders as described in claim 1, characterized in that, Before filling, the capacity, pressure, service life, filling medium, manufacturing date, production unit, inspection date, filling station name and last filling time of the gas cylinder are checked by the label data, and gas is filled into the gas cylinders that meet the requirements.
3. The safety control method for the filling process of industrial gas cylinders as described in claim 1, characterized in that, The pressure of the main pipeline and manifold branch pipelines during the filling process is monitored in real time. When an abnormality occurs, an early warning is issued. If the abnormality continues and the hidden danger is not eliminated within a specified time, the filling is stopped.
4. A safety control system for the filling process of industrial gas cylinders, characterized in that, include: The data acquisition module is configured to: acquire the label data of the gas cylinders and the identity verification information of the operators; The identity verification module is configured to: determine the legality of the tag data and identity verification information; if legal, gas filling is allowed; otherwise, gas filling is not allowed; specifically, the operator's identity is determined through a two-layer authentication process of employee card recognition and biometric identification. The pressure judgment module is configured to: analyze the pipeline pressure change curve at each stage of the gas filling process, and determine whether the filling is normal based on the slope and characteristic points of the pressure change curve. If it is normal, the gas filling continues; otherwise, the gas filling stops. When the pressure change within a set time is within a preset range, the current filling process is in a normal filling state. When the pressure reaches the set filling threshold and the change becomes slow, the current state is full. When the pressure drops to zero within a set time, the current filling process is considered to have completed one filling operation. The early warning module is configured to periodically acquire relevant information about the gas cylinders during the filling process and determine whether any abnormalities have occurred. If an abnormality is found, an early warning is issued; otherwise, normal monitoring is performed. Specifically, if the heartbeat data of the control system in the filling system is not received within the specified time, it is determined that the operator has performed an unauthorized power outage operation on the control system, and an early warning is issued. If the warning is not rectified within the specified time, the filling operation will be prohibited.
5. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the steps of the safety control method for the filling process of industrial gas cylinders as described in any one of claims 1-3.
6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the safety control method for the filling process of industrial gas cylinders as described in any one of claims 1-3.