College laboratory safety virtual simulation system based on safety culture theory

Abstract

The invention discloses a college laboratory safety virtual simulation system based on a safety culture theory. The college laboratory safety virtual simulation system comprises a management module, a selection module and a simulation module; wherein the selection module comprises a role selection unit, a mode selection unit, a danger source selection unit, a case library and a hidden danger library; the simulation module comprises a safety tool box, an experimenter access and exit whole process management unit and a manager supervision unit. The dangerous sources are classified, an operator not only can select exercise or assessment modes and roles of managers or experimenters, but also can select various dangerous sources, and a user can select according to own requirements, so that the operation is more targeted. By taking the whole process management of admission and admission of experimenters and the supervision process of managers as main lines and on the basis of cases, safety value guidance and safety awareness improvement are carried out, various safety knowledge and safety skills are integrated, and the relation between the modules is enhanced, so that the learning is more systematic and more practical.

Description

Technical Field

[0001] The invention relates to a university laboratory safety virtual simulation system based on safety culture theory, belonging to the technical field of virtual simulation experiments. Background Art

[0002] The laboratory is an important place for practical teaching in colleges and universities. There are many types of hazardous sources in the laboratory, and the safety hazards are widely distributed. In addition to the basic water and electricity, fire safety, and conventional cold and hot equipment safety, it also includes dangerous chemicals such as easy-to-make drugs, easy-to-make explosives, and flammables, experimental animals such as mice, rats, and rabbits, pathogenic microorganisms, special equipment such as gas cylinders and pressure cookers, and radiation devices. Chemical, biological, radiation, and special equipment safety. The current laboratory management treats the symptoms but not the root cause, and has failed to fundamentally solve the safety problems of university laboratories. The construction of laboratory safety culture can solve laboratory safety problems from the root, and is an effective way to ensure laboratory safety.

[0003] Effective experimental safety education and training is a good carrier. A large number of studies at home and abroad have confirmed that effective safety education and training can save a lot of costs by preventing accidents. Effective training can not only save lives, but also eliminate additional indirect costs related to accident investigations, equipment downtime and maintenance, and other additional costs. Participatory (i.e. active learning module) training has been widely accepted as one of the most effective training methods. The best way to train and learn is to do real things and simulate real tasks to gain experience. At present, the main form of safety education and training in China is still question bank, expert lectures or theoretical teaching, and the training effect is not good.

[0004] Virtual simulation technology can be used for training on routine laboratory safety, demonstration of dangerous experiments, experience of dangerous scenes such as fire and explosion, and training on emergency response such as fire escape and medical assistance. Some schools have developed virtual simulation software for laboratory safety. Most of the experimental contents focus on the storage and use of hazardous chemicals, waste management, correct use of instruments and special equipment, laboratory water, electricity and gas usage specifications, emergency response, and identification of general safety hazards. It can only cultivate some laboratory safety skills, and does not involve the cultivation of safety norms and values, management leadership and commitment, risk assessment and incident reporting, communication and cooperation, incentives and fair culture, participation and empowerment. At the same time, the experimental modules are relatively independent and lack relevance, so that students still do not know the process of entering and leaving the laboratory after learning. Experimental safety operations are limited to certain special situations, lack of main line connection and ductility, and are difficult to promote. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a university laboratory safety virtual simulation system based on safety culture theory, set up the whole process management of laboratory safety access and exit, add the supervision of management personnel, set up a systematic, visual and continuously updated laboratory safety toolbox, and effectively enhance the systematicity, practicality, pertinence and sustainability of safety education.

[0006] The present invention adopts the following technical solutions to solve the above technical problems:

[0007] A university laboratory safety virtual simulation system based on safety culture theory, the system includes: a management module, a selection module and a simulation module; wherein,

[0008] The management module includes an information management unit and a course management unit;

[0009] The information management unit is used for users to register system accounts and perform identity authentication; it is also used for users to log in to the system according to the registered account and enter the selection module;

[0010] The course management unit is used to record and count the user's usage records and scores, and display the statistical results to the user;

[0011] The selection module includes a role selection unit, a mode selection unit, a hazard source selection unit, a case library and a hidden danger library;

[0012] The role selection unit is used for users of the system to select their roles in the system, and the roles include experimenters and managers;

[0013] The mode selection unit is used for selecting the operation mode after the user completes the role selection, and the operation mode includes a practice mode and an assessment mode;

[0014] The hazard source selection unit is used for the user to select the hazard source category involved in the experiment process after completing the mode selection. The hazard source categories include basic safety, chemical safety, biological safety, radiation safety, electromechanical safety and equipment safety;

[0015] The case library is used to randomly extract corresponding cases according to the hazard source category selected by the user;

[0016] The hidden danger database is used to randomly extract corresponding safety hidden danger scenarios according to the hazard source category selected by the user;

[0017] The simulation module includes a safety toolbox, a whole-process management unit for experimenter access and exit, and a management personnel supervision unit;

[0018] The safety toolbox is used to store laboratory safety-related information, and links to safety tool websites and safety information systems, visually displaying the overall knowledge architecture in the form of a knowledge graph for users to learn in depth; the safety toolbox is equipped with a safety question bank for users to conduct safety assessments after learning;

[0019] The whole process management unit for laboratory personnel entry and exit is used to manage the whole process from laboratory personnel entering to leaving the laboratory, record the laboratory personnel's scores and send them to the course management unit;

[0020] The manager supervision unit is used to manage the whole process of the manager supervising the laboratory, record the manager's performance and send it to the course management unit.

[0021] As a preferred solution of the present invention, the management module also includes a teaching evaluation unit, which is used for users to evaluate the system, and the evaluation content includes the system's functional implementation, the system's effectiveness and learning effect evaluation; after the user evaluation is completed, the course management unit will display the user's usage record and grades.

[0022] As a preferred solution of the present invention, the laboratory safety-related materials stored in the safety toolbox include: safety theory learning materials, laboratory safety accident case analysis materials and safety operation short video materials.

[0023] As a preferred solution of the present invention, the user logs in to the system through the information management unit, enters the selection module, selects the role of the experimenter through the role selection unit, the operation mode is the assessment mode, and selects the hazard source category. The management process of the experimenter access and exit management unit is as follows:

[0024] 1) Experimenters enter the safety toolbox to learn safety knowledge and tools;

[0025] 2) After learning is completed, 20 questions corresponding to the hazard source category selected by the experimenter are randomly selected from the safety question bank for safety assessment. If the assessment score is greater than or equal to the preset threshold, proceed to the next step, otherwise return to 1);

[0026] 3) Randomly extract cases corresponding to the hazard source categories selected by the experimenter from the case library. The experimenter will be familiar with the experimental operation content, the knowledge points involved and the detailed operation steps based on the extracted cases;

[0027] 4) The experimenter conducts the experimental risk assessment according to the detailed operation steps of the extracted case and fills in the risk assessment form. The system scores the risk assessment form. If the score is full, proceed to the next step. Otherwise, the system gives the score and the correct answer. The experimenter corrects the risk assessment form and proceeds to the next step.

[0028] 5) The system and the experimenters sign a safety responsibility letter;

[0029] 6) The experimenter enters the virtual experimental site and looks for the five pre-set safety hazards. The safety hazards correspond to the hazard source categories selected by the experimenter. After all the safety hazards are found, the next step is entered. If the experimenter fails to find all the safety hazards within the preset time, the system will prompt the experimenter;

[0030] 7) The experimenter conducts the experiment according to the selected cases. During the operation, the system randomly sets safety questions for the experimenter to answer. At the same time, the system sets up virtual experimenters to enter the virtual experimental site to conduct the experiment. The experimenter points out the irregular behaviors of the virtual experimenter during the operation.

[0031] 8) During the experiment, four corresponding emergency incidents are randomly set according to the cases drawn by the experimenters. The experimenters handle the emergency incidents and fill in the laboratory safety incident report form to report the incidents;

[0032] 9) After the experiment is completed, the experimenter will organize the experimental equipment, dispose of the experimental waste in a standardized manner, check and resolve safety hazards, and then leave the virtual experimental site.

[0033] As a preferred embodiment of the present invention, in said 2), the 20 randomly selected questions include single choice, multiple choice and judgment. When the operation mode is practice mode, after the safety assessment is completed, the system gives the safety assessment score and the correct answers to the wrong questions, and the experimenter can repeat the safety assessment practice.

[0034] As a preferred solution of the present invention, in said 4), when the operation mode is the practice mode, the experimenter can repeatedly fill in the risk assessment form and score it, and when the score is full marks, proceed to the next step.

[0035] As a preferred solution of the present invention, the user logs in to the system through the information management unit, enters the selection module, selects the role of manager through the role selection unit, the operation mode is the practice mode, and selects the hazard source category. The supervision process of the manager supervision unit is as follows:

[0036] a) Managers access the safety toolbox to learn safety knowledge and tools;

[0037] b) After learning, 20 questions corresponding to the hazard source categories selected by the manager are randomly selected from the safety question bank for safety assessment. After the safety assessment is completed, the system gives the safety assessment score and the correct answers to the wrong questions, and proceeds to the next step;

[0038] c) Randomly extract cases corresponding to the hazard source categories selected by the management personnel from the case library. The management personnel will be familiar with the experimental operation content, the knowledge points involved and the detailed operation steps based on the extracted cases;

[0039] d) Randomly select the experimental risk assessment form pre-set in the system, which corresponds to the case matching the hazard source category selected by the manager and contains errors and omissions. After the manager points out and corrects the errors and omissions in the form, the system will score and give the correct answer;

[0040] e) The system signs a safety responsibility letter with management personnel;

[0041] f) Randomly extract safety hazard scenarios corresponding to the hazard source categories selected by the management personnel from the safety hazard database, and the management personnel will find all safety hazards from the safety hazard scenarios and write a rectification report.

[0042] As a preferred solution of the present invention, the potential safety hazard scene in f) is a real laboratory potential safety hazard scene photographed by a panoramic camera.

[0043] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0044] 1. The present invention applies virtual reality and augmented reality technologies to laboratory safety education, which has the characteristics of convenience, scalability, low risk, repeatability, etc. As long as the corresponding hardware and software conditions are met, the training can be free from time and place restrictions. It has the advantages of good interactivity, real-time feedback, easy standardization, and easy regular consolidation of training effects, which makes it easier for teachers and students to accept.

[0045] 2. The present invention classifies hazardous sources according to the "Safety Inspection Item List for Laboratories in Colleges and Universities". Operators can not only choose practice or assessment mode, and choose the role of manager or experimenter, but also choose various hazardous sources such as basic safety, chemical safety, biological safety, radiation safety, electromechanical safety, and equipment safety. Users can make choices according to their own needs, making the operation more targeted.

[0046] 3. The system of the present invention takes into account both practicality and pertinence, and can effectively establish and enhance the safety values, safety awareness, safety knowledge and safety capabilities of experimental personnel and managers, further strengthen the organizational safety values, organizational safety management and organizational safety environment, and ultimately improve the organizational safety culture and ensure the safety of university laboratories.

[0047] 4. The teaching evaluation module of the system of the present invention can evaluate the basic situation, function realization, effectiveness and learning effect of the virtual simulation system, and can monitor the organizational safety culture in the long term, with "all-round", "full process" and "full coverage", to achieve the sustainable development of the virtual simulation system and the continuous improvement of the organizational safety culture.

[0048] 5. The present invention takes the whole process management process of laboratory safety access and exit of experimenters and the supervision process of managers as the main line, and conducts safety value guidance and safety awareness enhancement based on cases, integrates various safety knowledge and safety skills, strengthens the connection between modules, and makes learning more systematic and practical.

[0049] 6. A large amount of content in the safety toolbox in the system of the present invention visualizes the overall knowledge architecture in the form of a knowledge graph, which can show the development and structural relationship of laboratory safety knowledge. It helps users understand the relationship between knowledge, not just searching by keywords, but can analyze safety issues from the perspective of relationships, so that users can learn deeply, understand the order of knowledge learning, find more accurate and comprehensive information, and make correct judgments and operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a structural diagram of a university laboratory safety virtual simulation system based on safety culture theory of the present invention;

[0051] Figure 2 It is a flow chart of each part of the simulation module of the present invention. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0053] like Figure 1 As shown, the present invention proposes a virtual simulation system for university laboratory safety education based on occupational safety and health culture (OSH) theory, including a management module, a selection module and a simulation module.

[0054] The management module includes the information management unit, the teaching evaluation unit and the course management unit. Information management unit: The user logs in to the virtual simulation system, completes personal identity authentication on the system login / registration page, and then logs in to the account. Teaching evaluation unit: After the operation is completed, the virtual simulation experiment system needs to be evaluated (including basic information, function realization, effectiveness and learning effect evaluation). Course management unit: Management of teaching resources, virtual simulation experiment exercises, assessments, etc. during the learning period. After the teaching evaluation, you can view the transcript and continue to focus on strengthening the practice based on the performance analysis. The system can record the performance of experimental personnel and management personnel who log in each year, and evaluate the annual changes in the organizational safety culture (based on schools or colleges).

[0055] The selection module includes role, mode and hazard source selection unit. Role selection unit: Within the project, the system provides two virtual simulation roles according to the user account, namely management personnel and experimental personnel. The user will play this role to complete the tasks of the role in the virtual simulation. Management personnel include graduate tutors, project group leaders, laboratory leaders, safety officers and leaders in charge of laboratories; experimental personnel are personnel who enter the laboratory to perform experimental operations. Mode selection unit: After determining the role, select the operation mode, which is divided into practice mode and assessment mode. The practice mode process will guide users to perform correct operations and provide multiple situations for selection. The operation can be repeated. The assessment mode must be completed according to the prescribed process, operation and time. The system automatically judges and generates completion progress, error details and other transcript content. Hazard source selection unit: According to the "Laboratory Safety Inspection Item List for Colleges and Universities", the hazards are divided into basic safety (basic safety of water and electricity use), chemical safety (storage, purchase, storage, use of hazardous chemicals, etc.), biological safety (management of pathogenic microorganisms, animal safety, disposal of biological experimental waste, etc.), radiation safety (site facilities and procurement and transportation, radioactive experimental safety and waste disposal, etc.), electromechanical safety (routine management of instruments and equipment, mechanical safety, electrical safety, laser safety, dust safety, etc.), equipment safety (special equipment and conventional thermal equipment). Operators select the hazards that need to be trained and learned according to the categories of hazards involved in the actual experiment process (multiple selections are allowed), and the subsequent case library and virtual simulation operations are randomly built based on the selected hazards.

[0056] like Figure 2 As shown, the simulation module includes a safety toolbox, an experimenter access and exit management unit, and a management personnel supervision unit.

[0057] 1. Safety toolbox settings: In order to better understand the interrelationships of safety knowledge, the relatively systematic and comprehensive laboratory safety-related materials that have been organized are visualized in the form of knowledge graphs through lists, web page jumps, etc. to display the overall knowledge structure, which can show the development and structural relationship of laboratory safety knowledge, and can be continuously improved and updated in subsequent practice and managed by the back-end administrator. (1) Safety theory learning materials: Incorporate systematic learning materials such as laboratory safety-related laws and regulations, 6S full-cycle management, risk management, and safety culture, with the aim of strengthening "norms and value systems" and "education and training"; (2) Connect to safety information systems: Connect with "laboratory safety training and assessment system", "laboratory materials and chemical management platform", and "laboratory safety inspection system" to strengthen "incident reporting", "information notification", and "communication and cooperation"; (3) Link to safety tool websites: Collect various commonly used safety tool websites at home and abroad, such as "Chemical Safety Data Sheet (MSDS) Query Website", "Risk Assessment Method Website", "Personal Protective Equipment Instructions and Selection Website", and "Laboratory Safety Information System". (4) Safety accident case analysis library: summarize laboratory accident cases and analyze their causes, with the aim of strengthening "education and training", "incident reporting", "information notification", and "process and continuous improvement"; (5) Safety operation short videos: various operation short videos are connected to laboratory scenes and can be played repeatedly at any time by clicking, such as the use of various instruments, personal protective equipment, eyewash, compound sprinkler, fire extinguisher, waste liquid barrel, etc., with the aim of strengthening "education and training", "incident reporting" and "information notification".

[0058] The setting of the safety toolbox can "teach students how to fish", so that students can learn to know various safety laws, regulations and rules, understand laboratory safety accidents, and be familiar with various safety tools, which can enhance "norms and value systems", "processes and continuous improvement", "education and training", "risk assessment and incident reporting", "information notification", and "communication and cooperation". The knowledge graph can help users understand the relationship between safety knowledge, and not simply search by keywords. It can analyze safety issues from the perspective of relationships, allowing users to learn in depth, understand the order of knowledge learning, and find more accurate and comprehensive information, so as to make correct judgments and operations.

[0059] 2. The whole process management unit of laboratory personnel access is based on the laboratory safety access management process. The laboratory personnel access management process is as follows: (1) Laboratory safety training: The safety toolbox displays laboratory safety theoretical knowledge and common tools (MSDS, risk assessment tools, personal protective equipment instructions and selection, safety information website, etc.) in the form of a knowledge map. Users can choose and study repeatedly according to their needs. The purpose is to strengthen "education and training"; (2) Laboratory safety knowledge assessment: The system randomly selects questions from the corresponding knowledge points based on the question bank to form a test paper for assessment. The assessment is passed with a score of 90 or above. Multiple assessments are allowed. The purpose is to strengthen "education and training"; (3) Familiarity with the experimental environment: After passing the experimental safety assessment, under the leadership of the person in charge of the virtual laboratory, familiarize yourself with the simulated laboratory environment, and familiarize yourself with the laboratory safety information notice board, safety system, safety slogans, laboratory floor plan, instrument and equipment placement, water and electricity opening Familiarize yourself with the laboratory environment, such as the location of the main switch, fire protection facilities, protective facilities, storage locations of various chemicals, and waste storage. You can jump to any location through the overall bird's-eye view of the laboratory, with the aim of strengthening "physical environment and information notification"; (4) Experimental project risk assessment: Conduct risk assessment on virtual experimental projects, fill in the experimental safety risk assessment form, and the system will conduct an assessment. All risks must be identified and correctly assessed before passing. The purpose is to learn the correct experimental project risk assessment and strengthen "risk assessment"; (5) Sign a safety responsibility letter: After completing the risk assessment, sign a safety responsibility letter for experimental personnel, with the aim of strengthening "norms and value system" and "participation and empowerment"; (6) Confirm environmental safety: According to the items listed in the "Laboratory Safety Inspection Item List for Higher Education Institutions", combined with many years of laboratory management, a university laboratory safety case library is constructed, and laboratory safety hazards in the case library are randomly selected and displayed according to the hazard source. Before the experiment begins, the experimenter conducts a safety check of the experimental environment according to the "Safety Checklist" in order to discover and resolve potential safety hazards and strengthen "communication and cooperation" and "participation and empowerment"; (7) Start the experimental operation and deal with safety issues that arise during the experiment: Perform virtual experimental process operation interactions. The system will provide positive feedback for correct behavior and provide safety prompts for incorrect behavior. During this period, virtual managers will conduct safety inspections and ask questions. In addition, during the experimental operation, the system will set up emergency events that occur to the user himself or his virtual colleagues in the same laboratory. The user needs to discover and handle them. Different outcomes will be achieved depending on the processing time and processing measures.The purpose is to train emergency operations, enhance vigilance, and strengthen "process and continuous improvement"; (8) Environmental cleaning and incident reporting after the experiment is completed: Clean up the experimental environment and conduct a safety inspection, and fill out a standardized "incident report" and upload it to the information system for safety incidents that occur during experimental operations (including safety accidents, minor accidents, attempted incidents, and employee errors). The purpose is to effectively communicate and disseminate information to prevent similar accidents from happening again. The purpose is to strengthen "information notification", "communication and cooperation", and "incident reporting"; (9) Leaving the laboratory: After completing the above process, the laboratory director can leave the laboratory only after review and acceptance. The purpose is to strengthen "communication and cooperation", "process and continuous improvement", and "participation and empowerment". The full process management unit for laboratory personnel access can strengthen the "norms and value system", "process and continuous improvement", "education and training", "risk assessment and incident reporting", "physical environment and information notification", "horizontal communication and cooperation", "motivation and fair culture", and "participation and empowerment" of laboratory personnel.

[0060] 3. The process of the management personnel supervision unit includes: (1) Laboratory safety training: Refer to the knowledge map of the safety toolbox for training and learning on laboratory safety management knowledge, with the aim of strengthening "norms and value system" and "education and training"; (2) Laboratory safety knowledge assessment: The system randomly selects questions of corresponding knowledge points from the question bank to form a test paper for assessment. The assessment is passed with a score of 90 or above. Multiple assessments are allowed, with the aim of strengthening "norms and value system" and "education and training"; (3) Familiarity with the experimental environment: After passing the experimental safety assessment, familiarize yourself with the simulated laboratory environment, and familiarize yourself with the laboratory safety information notice board, safety system, safety slogans, laboratory floor plan, instrument settings, etc. Familiarize yourself with the laboratory environment, such as the placement of equipment, the location of water and electricity switches and main gates, fire protection facilities, protective facilities, the storage location of various chemicals, and the storage location of waste. You can jump to any location through the overall bird's-eye view of the laboratory, with the aim of strengthening "physical environment and information notification"; (4) Sign a safety responsibility letter: Sign a safety responsibility letter for management personnel, with the aim of strengthening "norms and value system" and "participation and empowerment"; (5) Check laboratory safety hazards: According to the items listed in the "Laboratory Safety Inspection Items List for Higher Education Institutions", combined with years of laboratory management, a university laboratory safety case library is constructed. According to the selection of hazard sources, laboratory safety hazards in the case library are randomly selected for display. Managers check the laboratory environment and laboratory personnel operations, with the aim of strengthening "leadership and commitment", "supervision and management", "vertical communication and cooperation", and "process and continuous improvement"; (6) Write a rectification report: Describe safety hazards, put forward rectification suggestions and supervise the implementation of rectification. The system generates and uploads reports, with the aim of strengthening "leadership and commitment", "supervision and management", "vertical communication and cooperation", "incident reporting", and "motivation and fair culture". The supervisory process module setting for managers is open to graduate supervisors, laboratory directors, laboratory safety officers and leaders in charge of laboratories, etc., with the aim of enhancing "norms and value systems", "leadership and commitment", "processes and continuous improvement", "supervision and management", "education and training", "incident reporting", "physical environment and information notification", "vertical communication and cooperation", "motivation and fair culture" and "participation and empowerment".

[0061] Embodiment 1

[0062] After the user registers basic information and logs into the virtual simulation system, he / she will first enter the selection module according to the course schedule, assume that the role is selected as the experimenter, the mode is selected as the assessment mode, and the hazard source is selected as "basic safety" or "biosafety".

[0063] After the selection is completed, enter the simulation module, 1. Laboratory safety training: first enter the safety toolbox to learn safety knowledge and tools; 2. Laboratory safety assessment: after learning, randomly select 20 questions related to "basic safety" and "biosafety" from the safety question bank (single choice, multiple choice, judgment) for safety assessment. If the score is greater than or equal to 90, proceed to the next step, and if the score is less than 90, repeat steps 1-2; 3. Familiarize yourself with the laboratory environment: the system displays the experimental project "nude mouse tumor formation" randomly selected from the case library, including the experimental operation content, the knowledge points involved, and the detailed operation steps. Since this experimental project will use the cell room and animal room, the user should be familiar with the cell room and animal room environment, including the safety information board, safety system, floor plan, instrument location and use, water and electricity switch and main switch location, fire protection facility location and use, safety protection facility location and use; 4. Experimental project risk assessment: the risk assessment process includes decomposing experimental steps, risk identification, risk analysis, risk evaluation and risk control. According to the detailed experimental operation steps of "nude mouse tumor formation", the experiment involves the source of danger, the hazard, possibility, severity, risk level, existing control measures, the need for new control measures, the effectiveness of measures and the residual risk level, and fill in the risk assessment form (see Table 1). 5. Sign the safety responsibility letter: After completing the above operations, the system will display the safety responsibility letter, and the user should read it carefully and sign it. 6. Confirm environmental safety: According to the basic and biological "safety checklist" (laboratory environmental safety, complete configuration of experimental safety protection supplies, aseptic operation specifications, alcohol lamp use specifications, liquid nitrogen tank use specifications, standardized treatment of experimental waste, animal capture standard operation and animal waste treatment specifications), the user needs to find the 5 safety hazards pre-set in the laboratory after entering the experimental site, and correctly solve the safety hazards according to the system prompts, including two basic safety hazards (alcohol lamp is too full of alcohol, liquid nitrogen tank is not posted with low temperature warning signs and information signs) and three biological safety hazards (animal carcasses are placed in the laboratory yellow trash can, biological waste trash can is not affixed with special labels, and used needles are directly placed in the biological waste trash can). 7. Start the experiment: According to the experimental steps, carry out the experiment. "Nude mouse tumor formation" can be divided into four experimental steps: (1) preparation of cell suspension; (2) subcutaneous inoculation; (3) observation of results; (4) waste disposal. During the experiment, the system-set management personnel will inspect the laboratory safety, and the user needs to correctly answer the safety questions raised by the management personnel; during the experiment, virtual laboratory personnel will enter the laboratory to carry out experimental operations. If there is any irregular behavior during the operation, such as entering the cell room without wearing sterile personal protective equipment (white coat, mask, gloves, slippers), it should be pointed out.8. Deal with safety issues during the experiment and complete the incident report: Four emergency events are randomly set during the experiment, and users need to respond quickly to solve them, such as emergency event 1-alcohol lamp burning: open the fire blanket to cover the fire source or take a carbon dioxide fire extinguisher to extinguish the fire; emergency event 2-frostbite: stay away from the injury site; apply frostbite cream (seek medical attention immediately for severe cases); emergency event 3-mouse bite: you can use running water to rinse the affected area and squeeze out the blood from the wound as much as possible, and then use iodine tincture and other disinfectants to disinfect the affected area (if there is a large area of ​​injury, seek medical attention immediately to treat the wound); vaccination (tetanus vaccine, rabies vaccine); emergency event 4-sharp injury: you can use running water to rinse the affected area and squeeze out the blood from the wound as much as possible, and then use iodine tincture and other disinfectants to disinfect the affected area (if there is a large area of ​​injury, seek medical attention immediately to treat the wound). After the emergency event is handled, fill in the "Laboratory Safety Incident Report Form" (see Table 2) and report the event. 9. Laboratory environment tidying up and safety check: After the experiment is completed, clean up the laboratory table, turn off the instruments, organize the consumables and reagents, dispose of the experimental waste in a standardized manner, check and resolve laboratory safety hazards, and then leave the laboratory.

[0064] Table 1 Biological safety risk assessment table

[0065]

[0066]

[0067]

[0068] Table 2 Laboratory Safety Incident Report Form

[0069]

[0070] Embodiment 2

[0071] After the user registers basic information and logs into the virtual simulation system, he / she will first enter the selection module according to the course schedule, assume that the role is selected as a manager, the mode is selected as practice mode, and the hazard source is selected as "chemical safety" or "equipment safety".

[0072] After the selection is completed, enter the simulation module: 1. Laboratory safety training: first enter the safety toolbox to learn safety knowledge and tools; 2. Laboratory safety assessment: after learning, randomly select 20 questions related to "chemical safety" and "equipment safety" (single choice, multiple choice, judgment) from the safety question bank for safety assessment. The system will give the safety assessment score and the correct answers to wrong questions, and the assessment exercises can be repeated; 3. Familiarize yourself with the laboratory environment: the system displays the experimental project "Determination of zinc content in food" randomly selected from the case library, including the experimental operation content, the knowledge points involved and the detailed operation steps. Since this experimental project will use the laboratory preparation room and instrument operation room, the user should prepare the laboratory preparation room and instrument operation room environment, including the laboratory safety information board, safety system, floor plan, instrument location and use, water and electricity switch and main switch location, fire protection facility location and use, safety protection facility location and use; 4. Review the experimental project risk assessment: As a manager, you need to review whether the experimental project risk assessment report submitted by the experimenter is correct. The system will display the risk report on "Determination of zinc content in food". The user needs to point out and correct the errors and omissions in the risk assessment report. After submission, the system will give the score and correct answer. 5. Sign the safety responsibility letter: After completing the above operations, the system will display the safety responsibility letter, and the user will sign it after reading it carefully. 6. Check laboratory safety hazards: According to "chemical safety" and "equipment safety", real laboratory safety hazard scenes taken by panoramic cameras are randomly selected from the hazard database. Users need to find safety hazards such as: (1) Two or more wiring boards are connected in series; (2) The oven is placed near the distribution box; (3) The experimenter does not wear work clothes to perform experimental operations; (4) Chemical reagents are stacked; (5) A large amount of ethanol (greater than 50 liters) is stored in the laboratory; (6) The explosive and hazardous chemical nitric acid is not placed in the explosive and hazardous chemical cabinet and "double-locked"; (7) The gas cylinder is not hung with an information sign; (8) The waste liquid barrel is not equipped with a leak-proof tray; (9) The original beverage (Nongfu Spring) bottle is used to store reagents; (10) The oven is not posted with a high temperature warning sign and safety operating procedures. 7. Write a rectification report: The rectification report contains inspection items, safety hazards and rectification suggestions (see Table 3).

[0073] Table 3 Safety hazards and rectification suggestions

[0074]

[0075]

[0076] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A university laboratory safety virtual simulation system based on safety culture theory, characterized in that: The system includes: a management module, a selection module and a simulation module; wherein, The management module includes an information management unit and a course management unit; The information management unit is used for users to register system accounts and perform identity authentication; it is also used for users to log in to the system according to the registered account and enter the selection module; The course management unit is used to record and count the user's usage records and scores, and display the statistical results to the user; The selection module includes a role selection unit, a mode selection unit, a hazard source selection unit, a case library and a hidden danger library; The role selection unit is used for users of the system to select their roles in the system, and the roles include experimenters and managers; The mode selection unit is used for selecting the operation mode after the user completes the role selection, and the operation mode includes a practice mode and an assessment mode; The hazard source selection unit is used for the user to select the hazard source category involved in the experiment process after completing the mode selection. The hazard source categories include basic safety, chemical safety, biological safety, radiation safety, electromechanical safety and equipment safety; The case library is used to randomly extract corresponding cases according to the hazard source category selected by the user; The hidden danger database is used to randomly extract corresponding safety hidden danger scenarios according to the hazard source category selected by the user; The simulation module includes a safety toolbox, a whole-process management unit for experimenter access and exit, and a management personnel supervision unit; The safety toolbox is used to store laboratory safety-related information, and links to safety tool websites and safety information systems, visually displaying the overall knowledge architecture in the form of a knowledge graph for users to learn in depth; the safety toolbox is equipped with a safety question bank for users to conduct safety assessments after learning; The whole process management unit for laboratory personnel entry and exit is used to manage the whole process from laboratory personnel entering to leaving the laboratory, record the laboratory personnel's scores and send them to the course management unit; The manager supervision unit is used to manage the whole process of the manager supervising the laboratory, record the manager's performance and send it to the course management unit.

2. The university laboratory safety virtual simulation system based on safety culture theory according to claim 1 is characterized in that: The management module also includes a teaching evaluation unit, which is used for users to evaluate the system. The evaluation content includes the system's functional implementation, the system's effectiveness and learning effect evaluation; after the user evaluation is completed, the course management unit will show the user his usage record and grades.

3. The university laboratory safety virtual simulation system based on safety culture theory according to claim 1 is characterized in that: The laboratory safety related materials stored in the safety toolbox include: safety theory learning materials, laboratory safety accident case analysis materials and safety operation short video materials.

4. The university laboratory safety virtual simulation system based on safety culture theory according to claim 1 is characterized in that: The user logs in to the system through the information management unit, enters the selection module, selects the role of the experimenter through the role selection unit, the operation mode is the assessment mode, and selects the hazard source category. The management process of the experimenter access and exit management unit is as follows: 1) Experimenters enter the safety toolbox to learn safety knowledge and tools; 2) After learning is completed, 20 questions corresponding to the hazard source category selected by the experimenter are randomly selected from the safety question bank for safety assessment. If the assessment score is greater than or equal to the preset threshold, proceed to the next step, otherwise return to 1); 3) Randomly extract cases corresponding to the hazard source categories selected by the experimenter from the case library. The experimenter will be familiar with the experimental operation content, the knowledge points involved and the detailed operation steps based on the extracted cases; 4) The experimenter conducts the experimental risk assessment according to the detailed operation steps of the extracted case and fills in the risk assessment form. The system scores the risk assessment form. If the score is full, proceed to the next step. Otherwise, the system gives the score and the correct answer. The experimenter corrects the risk assessment form and proceeds to the next step. 5) The system and the experimenters sign a safety responsibility letter; 6) The experimenter enters the virtual experimental site and looks for the five pre-set safety hazards. The safety hazards correspond to the hazard source categories selected by the experimenter. After all the safety hazards are found, the next step is entered. If the experimenter fails to find all the safety hazards within the preset time, the system will prompt the experimenter; 7) The experimenter conducts the experiment according to the selected cases. During the operation, the system randomly sets safety questions for the experimenter to answer. At the same time, the system sets up virtual experimenters to enter the virtual experimental site to conduct the experiment. The experimenter points out the irregular behaviors of the virtual experimenter during the operation. 8) During the experiment, four corresponding emergency incidents are randomly set according to the cases drawn by the experimenters. The experimenters handle the emergency incidents and fill in the laboratory safety incident report form to report the incidents; 9) After the experiment is completed, the experimenter will organize the experimental equipment, dispose of the experimental waste in a standardized manner, check and resolve safety hazards, and then leave the virtual experimental site.

5. The university laboratory safety virtual simulation system based on safety culture theory according to claim 4 is characterized in that: In the above 2), the 20 randomly selected questions include single-choice, multiple-choice and judgment questions. When the operation mode is practice mode, after the safety assessment is completed, the system gives the safety assessment score and the correct answers to the wrong questions, and the experimenter can repeat the safety assessment practice.

6. The university laboratory safety virtual simulation system based on safety culture theory according to claim 4 is characterized in that: In the above 4), when the operation mode is the practice mode, the experimenter can repeatedly fill in the risk assessment form and score it. When the score is full, proceed to the next step.

7. The university laboratory safety virtual simulation system based on safety culture theory according to claim 1 is characterized in that: The user logs in to the system through the information management unit, enters the selection module, selects the role of manager through the role selection unit, the operation mode is practice mode, and selects the hazard source category. The supervision process of the manager supervision unit is as follows: a) Managers access the safety toolbox to learn safety knowledge and tools; b) After learning, 20 questions corresponding to the hazard source categories selected by the manager are randomly selected from the safety question bank for safety assessment. After the safety assessment is completed, the system gives the safety assessment score and the correct answers to the wrong questions, and proceeds to the next step; c) Randomly extract cases corresponding to the hazard source categories selected by the management personnel from the case library. The management personnel will be familiar with the experimental operation content, the knowledge points involved and the detailed operation steps based on the extracted cases; d) Randomly select the experimental risk assessment form pre-set in the system, which corresponds to the case matching the hazard source category selected by the manager and contains errors and omissions. After the manager points out and corrects the errors and omissions in the form, the system will score and give the correct answer; e) The system signs a safety responsibility letter with management personnel; f) Randomly extract safety hazard scenarios corresponding to the hazard source categories selected by the management personnel from the safety hazard database, and the management personnel will find all safety hazards from the safety hazard scenarios and write a rectification report.

8. The university laboratory safety virtual simulation system based on safety culture theory according to claim 7 is characterized in that: The potential safety hazard scene in f) is a real laboratory potential safety hazard scene captured by a panoramic camera.

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