Special operation safety risk analysis and warning system based on accident case library

Abstract

The invention provides a special operation safety risk analysis and warning system based on an accident case library, and the system comprises the accident case library which is used for storing historical special construction operation accident case data, and completing the construction of a risk chain; the risk chain model analysis module is used for performing security risk analysis of each dimension on the accident case library to form an accident case security analysis risk library; the comparative analysis module is used for comparing, analyzing, studying and judging with the accident case safety analysis risk library according to the actual condition of the construction operation to be carried out, and evaluating the possible safety risk; a safety protection scheme making module; compared with the prior art, the method has the following beneficial effects that before dangerous operation, a worker can be familiar with the safety risk of operation at the first time, the whole operation risk can be accurately prevented, the worker is assisted in finding the risk before operation, and repeated occurrence of similar production safety accidents is reduced or even eradicated.

Description

Technical Field

[0001] The present invention belongs to the technical field of safety risk analysis and warning for special construction operations, and in particular relates to a special operation safety risk analysis and warning system based on an accident case library. Background Art

[0002] In special construction operations, construction safety accidents have always been an important concern. Traditional safety management systems rely on static safety regulations and standards, and often fail to timely and accurately identify the safety risks faced by current construction operations. Especially in complex construction environments, how to accurately identify similar high-frequency accidents based on historical accident case analysis and comparison, and issue warnings in a timely manner, is an urgent problem to be solved in the current safety management field. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a special operation safety risk analysis and warning system based on an accident case library to solve the problems raised in the above background technology.

[0004] The present invention is implemented by the following technical solution: A special operation safety risk analysis and warning system based on an accident case library, comprising:

[0005] Accident case database: used to store historical special construction accident case data and complete the risk chain construction;

[0006] Risk chain model analysis module: by conducting safety risk analysis of various dimensions on the accident case library, an accident case safety analysis risk library is formed;

[0007] Comparative analysis module: compare, analyze, and judge the actual situation of the upcoming construction work with the accident case safety analysis risk database to assess possible safety risks;

[0008] Safety precaution plan formulation module: formulate a safety precaution plan for construction operations based on the analysis results and clarify relevant safety measures;

[0009] Early warning module: Special warnings are issued for risks of similar accidents that have occurred, and accurate early warning information is provided for high-incidence accidents.

[0010] As a preferred implementation, the accident case safety analysis risk library includes accident data of various special construction operations and risk chain element data of each accident case, covering hazard sources, risk types, safety measures, hidden dangers and accident occurrence situations.

[0011] As a preferred implementation, the comparison and analysis module includes: a risk analysis algorithm for comparing the matching degree of the actual situation of the current construction work with the relevant risk factors in the historical accident cases;

[0012] The evaluation module is used to generate security prevention recommendations and generate specific prevention plans based on existing security regulations.

[0013] As a preferred implementation, the early warning module includes:

[0014] High-risk identification module, used to identify safety risks associated with historical high-frequency accident cases and issue warnings before construction work;

[0015] The real-time monitoring module is used to track possible safety hazards in real time during construction operations and issue safety warnings to operators.

[0016] As a preferred implementation method, the specific architecture of the safety precaution plan formulation module is as follows: the safety precaution plan formulation module proposes safety precaution measures based on the processing of the construction operation risk analysis results, determines the possible risk sources by analyzing the actual situation of the current construction operation and the matching degree with historical accident cases, and formulates targeted safety precaution plans based on these risk sources and related factors, so as to ensure the safety of personnel, equipment and environment during the construction process.

[0017] As a preferred implementation, in the safety precaution plan formulation module, the safety precaution plan formulation module proposes the following specific operations of safety precaution measures based on the processing of the construction operation risk analysis results:

[0018] Risk prevention goal setting: clarify the prevention goals, and reduce or eliminate potential safety risks through measures. Specific prevention goals include: reducing the probability of accidents caused by dangerous sources, reducing the severity of accidents, and ensuring the effectiveness of safety measures;

[0019] Safety measures formulation: Based on the risk analysis results, combined with the actual situation of the current construction work and historical accident cases, different safety measures are proposed for different types of risks;

[0020] Development of prevention plans;

[0021] Feedback and optimization of security prevention plans.

[0022] As a preferred implementation, the specific operations of formulating security measures include:

[0023] Risk identification and assessment: Through the risk chain model, possible accidents are analyzed according to hazard sources, risk types, safety measures, hidden dangers, and accidents, and the main risk factors in the current construction work are identified;

[0024] Formulate safety measures: In response to these risk factors, the safety prevention plan specifies safety measures to eliminate or reduce the occurrence of risks, including: Equipment inspection and maintenance measures: Regularly inspect construction equipment to ensure that the equipment is in good condition; update or repair aging equipment; Fire prevention measures: Strengthen fire safety management at the construction site, install compliant fire protection facilities, and conduct regular inspections to ensure that the equipment functions properly; Operating procedures and training: Strengthen personnel training, improve operators' awareness of equipment safety and fire prevention, and ensure standardized operations;

[0025] As a preferred implementation, the specific operation of formulating security measures also includes: security measures priority ranking:

[0026] According to the risk assessment results, the safety measures are prioritized. For situations with higher risks or that may lead to serious consequences, corresponding safety measures need to be formulated and implemented first. The priority ranking of safety measures is quantitatively evaluated using the following formula:

[0027]

[0028] in:

[0029] P i is the priority of the ith safety measure;

[0030] L i is the risk level corresponding to the i-th safety measure, which is usually related to the severity of historical accidents;

[0031] S i is the implementation effect of the i-th safety measure, indicating its effectiveness in reducing risks;

[0032] C i is the cost of the ith safety measure, taking into account the input of time, manpower, financial resources, etc.

[0033] After adopting the above technical scheme, the beneficial effect of the present invention is that before dangerous operations, workers can be familiar with the safety risks of the operations in the first place, and can make accurate prevention of the entire operation risks, assisting workers to discover risks before operations, and reducing or even eliminating the recurrence of similar production safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 It is a schematic diagram of the overall structure of the special operation safety risk analysis and warning system based on the accident case library of the present invention.

[0036] In the figure, 100-accident case library, 200-risk chain model analysis module, 210-accident case safety analysis risk library, 300-comparative analysis module, 400-safety prevention plan formulation module, 500-early warning module. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1 The present invention provides a technical solution: a special operation safety risk analysis and warning system based on an accident case library, comprising:

[0039] Accident case database 100: used to store historical special construction accident case data and complete the risk chain construction;

[0040] Risk chain model analysis module 200: forms an accident case safety analysis risk library 210 by performing safety risk analysis of various dimensions on the accident case library 100;

[0041] Comparative analysis module 300: compares, analyzes, and determines the actual situation of the upcoming construction work with the accident case safety analysis risk library 210 to evaluate possible safety risks;

[0042] Safety precaution plan formulation module 400: formulate a safety precaution plan for construction operations based on the analysis results and clarify relevant safety measures;

[0043] Early warning module 500: Issues special warnings for risks of similar accidents that have occurred, and provides accurate early warning information for high-incidence accidents.

[0044] Specific:

[0045] Accident Case Library 100: Accident Case Library 100 stores detailed data of various special construction accidents that have occurred in history. Each accident case forms a complete risk chain model in the order of "hazard source-risk-safety measures-hidden dangers-accidents". These data include the specific circumstances of the accident, the implementation of safety measures, the identification and rectification of hidden dangers, etc.

[0046] in:

[0047] Hazard sources: Hazard sources refer to factors or conditions that may cause danger or accidents and are the source of safety risks. They are usually related to the physical environment, work equipment, operating procedures, personnel behavior, etc.

[0048] For example: aerial work equipment, aging mechanical equipment, electrical lines, etc.

[0049] Risk: Risk refers to the potential harm caused by a hazardous source. It describes the possibility of an accident caused by a hazardous source and the possible consequences after the accident occurs.

[0050] Risks include: risk of personal injury or death, risk of equipment damage, risk of environmental pollution, etc.

[0051] Safety measures: Safety measures are measures or controls taken to reduce or eliminate risks. These measures are intended to reduce the likelihood of an accident or mitigate the consequences of an accident.

[0052] For example: installing guardrails, using explosion-proof equipment, conducting safety training, and regularly inspecting equipment.

[0053] Hidden danger: Hidden danger refers to a dangerous condition that exists but has not yet caused an accident, but may cause an accident at some point in the future. Hidden dangers are usually related to factors such as non-compliant operations, aging equipment, and irregular management.

[0054] For example: workers working at heights did not wear safety belts, equipment was not inspected regularly, and there were no complete fire-fighting facilities on site.

[0055] Accident: An accident is an actual event caused by hazards, risks, hidden dangers and insufficient safety measures, usually accompanied by consequences such as casualties, equipment damage and environmental pollution.

[0056] For example: falling accidents of workers working at heights, fires caused by equipment failures, etc.

[0057] Risk chain model analysis module 200: This module conducts multi-dimensional analysis on the accident case library 100, extracts various risk factors related to construction work, and forms an "accident case safety analysis risk library 210". This risk library provides a basis for subsequent risk assessment through a standardized risk chain model.

[0058] Comparative analysis module 300: Based on the actual situation of the upcoming construction work (such as construction location, construction content, equipment used, etc.), a comparative analysis is performed with the "accident case safety analysis risk library 210". The matching degree between the risk factors in the construction project and the risk chain elements in the historical cases is compared through an algorithm to determine the potential safety hazards and conduct risk assessment.

[0059] Safety precautions program formulation module 400: Based on the evaluation results of the comparative analysis module 300, this module provides tailored safety precautions for construction operations according to safety measures suggestions in historical data and current safety regulations. The precautions may include optimization suggestions for safety measures, hidden dangers that require special attention during the construction process, etc.

[0060] Early Warning Module 500: This module monitors risk factors related to historical high-incidence accident cases in real time and generates accurate safety warnings through the system. Early Warning Module 500 automatically identifies potential dangers at the construction site based on real-time monitoring data and issues early warning information so that construction workers and managers can take appropriate safety measures.

[0061] Embodiment 1, as an embodiment of the present invention:

[0062] The accident case safety analysis risk library 210 contains accident data of various special construction operations and risk chain element data of each accident case, covering hazard sources, risk types, safety measures, hidden dangers and accident occurrence situations.

[0063] Embodiment 2, as an embodiment of the present invention:

[0064] The comparison and analysis module 300 includes:

[0065] Risk analysis algorithms are used to compare the actual situation of current construction operations with the matching degree of relevant risk factors in historical accident cases;

[0066] The risk analysis algorithm is divided into the following parts:

[0067] 1. Risk factor extraction

[0068] Risk factors in historical accident cases: Each accident case contains several risk factors, which can be divided into the following categories:

[0069] Hazard (H): Potential factors that may cause accidents (e.g., equipment failure, electrical fire, operating error, etc.).

[0070] Risk type (R): the probability and severity of an accident (e.g., fire, explosion, collapse, etc.).

[0071] Safety measures (M): preventive or mitigation measures taken (e.g., operating procedures, emergency equipment, training, etc.).

[0072] Hidden danger (D): Dangerous factors that existed before the accident and were not eliminated in time.

[0073] Accident (A): The final outcome of the accident (e.g. casualties, property damage, etc.).

[0074] 2. Actual conditions of current construction work

[0075] The actual situation of the current construction work includes but is not limited to:

[0076] Construction environment (such as work location, climate conditions, space limitations, etc.)

[0077] Construction equipment (such as machine type, equipment age, usage status, etc.)

[0078] Construction personnel (such as operator experience, training level, etc.)

[0079] Construction tasks (such as complexity of the task, degree of danger, etc.)

[0080] 3. Matching degree calculation

[0081] The risk factors extracted from the historical accident case library 100 are compared with the factors of the actual situation of the current construction work, the matching degree is calculated, and the safety risk of the current construction work is evaluated.

[0082] Assuming that there are multiple risk factors in historical accident cases, we can assign a weight to each risk factor and calculate the degree of match between the actual situation of the current construction work and the historical cases.

[0083] The specific steps are as follows:

[0084] 1. Calculation of matching degree of risk factors

[0085] For each risk factor i (such as hazard source, risk type, etc.), its matching degree S i It can be calculated by the following formula

[0086]

[0087] The similarity measures the similarity between the current construction situation and the corresponding risk factors in historical accident cases, and the maximum possible value represents the maximum matching degree of the factor (usually 1 or 100%).

[0088] For hazard sources (H): If the hazard sources in the current construction work are very similar to those in the historical cases, then S H The value is close to 1.

[0089] If the hazard sources in the current construction work are significantly different from those in the historical cases, then S H The value is lower.

[0090] 2. Comprehensive scoring of risk factors

[0091] In order to comprehensively evaluate the matching degree of each risk factor, different weights are assigned to each risk factor to reflect its impact on the overall security risk. The weight of each risk factor is w i , and then use the weighted average to calculate the comprehensive matching degree S total :

[0092]

[0093] in:

[0094] n is the number of risk factors (usually 5: hazard source, risk type, safety measure, hidden danger, accident).

[0095] w i is the weight of the i-th risk factor, satisfying ∑w i =1.

[0096] S i is the matching degree of the ith risk factor.

[0097] 3. Risk assessment and warning

[0098] The comprehensive matching degree S obtained by calculation total , the safety risk of construction work can be evaluated according to the set threshold:

[0099] If S total Greater than a certain safety threshold S threshold , the system will issue a safety warning to remind that there is a high safety risk in the construction work.

[0100] If S total Less than or equal to S threshold , it is considered that the risk of the current construction work is within an acceptable range and no special warning is needed.

[0101] For example, we have three risk factors that need to be matched:

[0102] Hazard sources (H): The matching degree between the hazards in historical cases and the hazards in current construction operations is 0.9.

[0103] Risk type (R): The matching degree between the risk type in the historical case and the risk type in the current construction operation is 0.8.

[0104] Safety measures (M): The matching degree between the safety measures in the historical cases and the safety measures in the current construction operation is 0.7.

[0105] Assume that the weights of each factor are:

[0106] Hazard source weight: w H =0.4

[0107] Risk type weight: w R =0.3

[0108] Safety measure weight: w M =0.3

[0109] The comprehensive matching degree is:

[0110] S total =0.4×0.9+0.3×0.8+0.3×0.7=0.36+0.24+0.21=0.81

[0111] If the safety threshold S is set threshold is 0.75, the system will recognize that the current construction work is at a high risk and issue a warning.

[0112] The evaluation module is used to generate security prevention recommendations and generate specific prevention plans based on existing security regulations.

[0113] Embodiment 3, as an embodiment of the present invention:

[0114] The safety precaution plan formulation module 400 proposes reasonable safety precaution measures based on the processing of the construction operation risk analysis results. Its purpose is to determine the possible risk sources by analyzing the matching degree between the actual situation of the current construction operation and the historical accident cases, and formulate targeted safety precaution plans based on these risk sources and related factors, so as to ensure the safety of personnel, equipment and environment during the construction process.

[0115] The specific aspects of this module include:

[0116] 1. Risk prevention goal setting

[0117] First, the safety prevention plan needs to clearly define the prevention goal, that is, what measures can be taken to effectively reduce or eliminate potential safety risks. The prevention goal is usually set based on the risk analysis results of the current construction work, especially the risk matching degree S. total , to formulate the value.

[0118] Specific prevention objectives may include:

[0119] Reduce the probability of accidents caused by dangerous sources (such as equipment failure, fire, etc.)

[0120] Reduce the severity of accidents (such as casualties, property losses)

[0121] Ensure the effectiveness of safety measures (such as complete safety facilities and adequate implementation of operating procedures)

[0122] 2. Safety measures formulation

[0123] Based on the results of risk analysis, combined with the actual situation of current construction operations and historical accident cases, the safety prevention plan can propose different safety measures for different types of risks. The specific steps include:

[0124] 2.1 Risk Identification and Assessment

[0125] Through the risk chain model, possible accidents are analyzed according to hazard sources, risk types, safety measures, hidden dangers, and accidents to identify the main risk factors in current construction operations.

[0126] For example, suppose that through risk analysis calculation, the safety match of the current construction work is low, resulting in the system identifying the following major risks:

[0127] Hazard source (H): Aging equipment leads to a higher risk of failure.

[0128] Risk type (R): Fire risk that may be caused by equipment failure.

[0129] Hidden danger (D): Fire-fighting facilities are not configured as required and the fire-fighting system has not been inspected regularly.

[0130] 2.2 Develop safety measures

[0131] In view of these risk factors, the security plan needs to specify a series of security measures to eliminate or reduce the occurrence of risks. For example:

[0132] Equipment inspection and maintenance measures: Regularly inspect construction equipment to ensure that the equipment is in good condition; update or repair aging equipment.

[0133] Fire prevention measures: Strengthen fire safety management at construction sites, install compliant fire-fighting facilities, and conduct regular inspections to ensure that the equipment functions properly.

[0134] Operating procedures and training: Strengthen personnel training to improve operators' awareness of equipment safety, fire prevention, etc. to ensure standardized operations.

[0135] 2.3 Prioritization of security measures

[0136] Based on the risk assessment results, security measures are usually prioritized. For situations with higher risks or that may lead to serious consequences, corresponding security measures need to be formulated and implemented first. The priority of security measures can be quantitatively evaluated using the following formula:

[0137]

[0138] in:

[0139] P i is the priority of the ith safety measure.

[0140] L i is the risk level corresponding to the i-th safety measure, which is usually related to the severity of historical accidents.

[0141] S i is the implementation effect of the i-th safety measure, indicating its effectiveness in reducing risks.

[0142] C i is the cost of the ith safety measure, taking into account the input of time, manpower, financial resources, etc.

[0143] Through this formula, higher priority security measures can be implemented first when resources are limited.

[0144] 3. Process of formulating prevention plans

[0145] The development of a safety precaution plan can be carried out according to the following process:

[0146] 3.1 Data Input

[0147] Input actual construction data, including construction environment, construction personnel, construction equipment and other information, as the basis for risk analysis.

[0148] 3.2 Risk matching calculation

[0149] Based on the historical accident case library 100, the risk analysis algorithm is used to calculate the matching degree S of each risk factor in the current construction operation. i , and get the comprehensive risk matching degree S total .

[0150] 3.3 Security Goal Setting

[0151] According to S total If S total A value above the threshold indicates that the current construction work is risky and that higher safety precautions goals need to be set.

[0152] 3.4 Develop safety measures

[0153] Based on the identified major risk factors, targeted security measures are proposed for each risk factor and implemented according to priority.

[0154] 3.5 Implementation and Monitoring

[0155] The safety precautions formulated should be implemented gradually during the construction process, and their implementation should be tracked through the real-time monitoring module to ensure the effective implementation of the measures. If necessary, the safety measures should be dynamically adjusted based on the monitoring data.

[0156] 4. Feedback and optimization of security prevention plans

[0157] In the actual construction process, the safety precautions plan may face some practical challenges, and the effectiveness of safety precautions may change over time. Therefore, it is necessary to continuously evaluate the implementation effect and continuously optimize the plan based on the feedback results.

[0158] Assuming that some unexpected events occur during construction, or a safety measure fails to achieve the expected effect, its effect can be evaluated and optimized using the following formula:

[0159]

[0160] in:

[0161] E i is the implementation effectiveness percentage of the i-th safety measure.

[0162] R actual is the actual risk reduction after implementing the measure.

[0163] R expected is the expected risk reduction amount.

[0164] If E i If it is lower than a certain threshold (such as 80%), the effectiveness of the measure needs to be re-evaluated and optimized or adjusted.

[0165] Example 3.1, the following is an example, which elaborates on the working principle of the security plan formulation module, including the entire process of data input, risk analysis, matching degree calculation, plan formulation and implementation.

[0166] Assume that a construction project is in progress and the safety risks of the project need to be analyzed and prevented. By inputting the specific situation of the project into the system, the safety precaution plan formulation module will formulate safety precaution measures based on the existing historical accident case library and the risk factors of the current construction site.

[0167] 1. Input data (actual situation of construction work)

[0168] The actual construction work data include:

[0169] Construction environment data: Construction location: high-rise building construction site. Climate conditions: high temperature, occasional thunderstorms. Surrounding environment: urban area, the construction site is close to roads and residential areas.

[0170] Construction personnel data: Total number of construction personnel: 30, of which 10 have experience in high-altitude operations, 15 have experience in general construction, and 5 have no relevant experience. Construction personnel training: 90% of the construction personnel have received safety operation training, and 10% have not received any training.

[0171] Construction equipment data: Equipment usage: Construction equipment such as tower cranes and hoists have been in use for more than 5 years, and some equipment has experienced minor failures. Equipment maintenance: The equipment maintenance cycle is once every 6 months, and the most recent maintenance was 3 months ago.

[0172] Construction task data: Task nature: High-altitude lifting, involving lifting heavy objects, complex tasks. Risk assessment: Due to the hot weather, construction workers are prone to heat stroke, and high-altitude lifting involves a higher risk of equipment failure.

[0173] 2. Risk analysis and matching calculation

[0174] After inputting the actual situation of the construction work, the safety precaution plan formulation module begins to compare the historical accident case library and conduct risk analysis. Historical accident cases include heat stroke caused by high temperature weather and falling objects caused by equipment failure.

[0175] The system compares the current construction data with the risk factors in historical cases and calculates the matching degree S of each risk factor. i .

[0176] Risk factors:

[0177] Hazard sources (H): equipment failure, high temperature weather. Equipment failure matching degree: 0.85. High temperature weather matching degree: 0.90.

[0178] Risk type (R): falling objects, heat stroke. Matching degree of falling objects: 0.88. Matching degree of heat stroke: 0.91.

[0179] Safety measures (M): regular equipment inspection, personnel training, and on-site heatstroke prevention and cooling measures. Equipment inspection measures match: 0.70. Personnel training measures match: 0.80. Heatstroke prevention and cooling measures match: 0.75.

[0180] Hidden danger (D): Equipment failure has not been eliminated, and emergency measures for high temperature weather have not been fully covered. Hidden danger matching degree: 0.80.

[0181] Through calculation, the comprehensive matching degree of each risk factor is obtained:

[0182] S total =(0.85+0.90)×0.4+(0.88+0.91)×0.3+(0.70+0.80+0.75)×0.2+0.80×0.1S total =0.74+0.79+0.75+0.08=2.36

[0183] Assume that the safety threshold S set by the system threshold is 2.5, the current matching degree Stotal The value is 2.36, which is lower than the set threshold. Therefore, the system identifies that the construction project has certain risks. Although the overall risk is low, preventive measures still need to be formulated to reduce the possibility of accidents.

[0184] 3. Develop a safety precaution plan

[0185] According to the risk analysis results, the security plan formulation module proposes the following security measures:

[0186] Equipment inspection and maintenance: Measures: Conduct a comprehensive inspection of important construction equipment such as tower cranes and hoists to ensure that the risk of equipment failure is minimized. If the equipment has been used for more than 5 years, it is recommended to partially replace or upgrade it. Priority: High (according to the high risk matching of falling objects caused by equipment failure).

[0187] High temperature weather protection measures: Measures: Strengthen heatstroke prevention and cooling measures, including regular rest, providing sufficient water, wearing heatstroke-proof clothing, etc. At the same time, temporary awnings need to be set up at the construction site to reduce the time construction workers are exposed to high temperatures. Priority: Medium (high matching degree of high temperature weather, and there are many people on the construction site).

[0188] Personnel safety training and supervision: Measures: Strengthen the safety operation training of construction personnel, especially for those without relevant experience, to ensure the safety of high-altitude operations and equipment operation. Priority: Medium (although most personnel have received training, it is still necessary to strengthen the training of some inexperienced personnel).

[0189] Increase emergency response measures: Measures: Strengthen the preparation of emergency plans to ensure rapid response in the event of an accident. Especially in the case of equipment failure and heat stroke, ensure sufficient emergency equipment and personnel. Priority: Low (high hidden danger matching, need to improve emergency plans and execution capabilities).

[0190] 4. Prioritization of safety precautions

[0191] Based on the risk analysis results and the priority of safety measures, the following priority ranking can be obtained:

[0192]

[0193] in:

[0194] P i is the priority of the ith safety measure.

[0195] L i is the risk level corresponding to the i-th safety measure, which is usually related to the severity of historical accidents.

[0196] S iis the implementation effect of the ith safety measure, indicating its effectiveness in reducing risks.

[0197] C i is the cost of the ith safety measure, taking into account the input of time, manpower, financial resources, etc.

[0198] Equipment Inspection and Maintenance (Priority 2.8)

[0199] Hot Weather Protection (Priority 2.25)

[0200] Personnel safety training (Priority 1.6)

[0201] Emergency Response Measures (Priority 1.6)

[0202] 5. Implementation and Monitoring

[0203] During the implementation process, the safety precautions program formulation module continuously tracks the effectiveness of safety measures through a real-time monitoring system. It conducts monthly equipment inspections, personnel training, and supervision of the implementation of heatstroke prevention and cooling measures. If necessary, the system will adjust safety measures based on monitoring data.

[0204] Embodiment 4, as an embodiment of the present invention:

[0205] The early warning module 500 includes:

[0206] High-risk identification module, used to identify safety risks associated with historical high-frequency accident cases and issue warnings before construction work;

[0207] The real-time monitoring module is used to track possible safety hazards in real time during construction operations and issue safety warnings to operators.

[0208] Embodiment 5, as an embodiment of the present invention:

[0209] A construction company is carrying out a high-risk construction operation, which includes aerial work and mechanical equipment operation. The risk of the construction site is high, and there are potential safety hazards such as equipment failure, electrical fire, and falling from height. To ensure construction safety, a special operation safety risk analysis and warning system based on an accident case library is used to conduct a comprehensive safety risk analysis and early warning.

[0210] The system uses a historical accident case library of 100 and a risk chain model to conduct in-depth analysis of various safety risks in construction operations, and then formulates targeted safety prevention plans for the construction site and provides real-time risk warnings during the construction process.

[0211] The specific principles of this system are:

[0212] Construction and update of accident case library 100: The system first collects a large number of historical accident cases to build an accident case library 100. The data in the case library includes accident type, occurrence time, hazard source, risk type, safety measures, hidden dangers and accident consequences.

[0213] Risk chain model analysis: Based on the risk chain model of "hazard source-risk-safety measures-hidden dangers-accidents", various risk factors in historical accident cases are analyzed to extract accident cases that have occurred in different types of operations. The system evaluates the safety risks of the current operation by matching the actual situation of the current construction operation (such as construction environment, equipment, personnel, etc.) with the risk factors in historical accidents.

[0214] Matching degree calculation and early warning mechanism: The system calculates the matching degree between the actual situation of the current construction work and the risk factors in the historical cases, and obtains a comprehensive risk matching degree (such as s total ). If the matching degree exceeds the set threshold, the system will trigger a safety warning, reminding relevant personnel to pay attention to specific risks and provide corresponding safety precautions.

[0215] Specific:

[0216] 1. Input of construction site conditions

[0217] Assume that the construction site is a building site where aerial work and equipment commissioning are being carried out. The construction environment data is as follows:

[0218] Hazard source (H): Aging equipment. The crane used on the construction site is 8 years old and is used frequently, which may pose a risk of failure.

[0219] Risk type (R): Equipment failure may cause fire, casualties, especially failure of electrical equipment may cause fire.

[0220] Construction workers (P): Workers who work at heights do not have much experience and have not received special training for working at heights.

[0221] Safety facilities (M): On-site fire-fighting facilities have not been regularly inspected, fire extinguishers only meet the most basic quantity requirements and have not been regularly inspected.

[0222] 2. Historical accident case database 100 and risk analysis

[0223] By consulting the historical accident case library 100, the system extracts the following data:

[0224] Historical Case 1: A fire accident caused by equipment failure at a construction site in 2015. The cause of the accident was a short circuit in the crane's electrical equipment, which led to the fire and casualties. The source of danger was the aging of the equipment and the lack of regular inspections.

[0225] Hazard sources (H): aging of equipment, failure of electrical equipment.

[0226] Risk type (R): fire, casualties.

[0227] Safety measures (M): Increase the frequency of equipment inspections and improve fire prevention measures for electrical equipment.

[0228] Hidden danger (D): Electrical equipment is not inspected regularly and fire-fighting equipment is incomplete.

[0229] Historical case 2: A high-altitude work accident occurred in 2018. A worker was working at height without wearing a safety belt and fell down, causing serious injuries. The source of danger was improper operation and lack of training for high-altitude work.

[0230] Hazard source (H): Failure to perform high-altitude operations in a standardized manner.

[0231] Risk type (R): Fall injury.

[0232] Safety measures (M): Strengthen the training of workers working at heights and require them to wear safety belts.

[0233] Hidden danger (D): No safety training for working at heights was conducted and safety measures were not implemented.

[0234] 3. Risk matching calculation

[0235] The system calculates the matching degree based on the actual situation of the current construction site and the relevant risk factors in historical accident cases. Assumptions:

[0236] The equipment aging situation at the current construction site matches the "equipment aging" in historical cases at a degree of 0.8.

[0237] The electrical equipment failure risk at the current construction site matches the “electrical equipment failure” in historical cases at a degree of 0.9.

[0238] The current training situation of personnel working at heights matches the “no training” in historical cases at a degree of 0.7.

[0239] The completeness of the current fire protection facilities matches the "incomplete fire protection facilities" in the historical case at a degree of 0.85. The matching degree S of each risk factor is calculated comprehensively. i And weighted to get the overall risk matching degree S total .

[0240] Assume that the weights of each risk factor are:

[0241] Equipment aging and failure (H): weight w H =0.3

[0242] Electrical equipment failure (R): weight w R=0.25

[0243] Personnel training (P): weight w P =0.2

[0244] Firefighting facilities completeness (M): weight w M =0.25

[0245] The comprehensive matching degree S total The calculation formula is:

[0246] S total =w H ·S H +w R ·S R +w P ·S P +w M ·S M

[0247] Substitute the known data:

[0248] S total =0.3×0.8+0.25×0.9+0.2×0.7+0.25×0.85

[0249] S total =0.24+0.225+0.14+0.2125=0.8175

[0250] 4. Early warning and prevention plan

[0251] According to the comprehensive risk matching S total = 0.8175, the system compares it with the set threshold. Assume that the safety threshold S threshold is 0.75.

[0252] Because S total >0.75, the system triggers a safety warning, indicating that the current construction work has a high safety risk.

[0253] The system generates the following security prevention plans based on the matching degree and historical case library:

[0254] Equipment inspection and maintenance: Immediately conduct a comprehensive inspection and maintenance of the cranes at the construction site, especially the electrical system, to avoid failures that may cause fires. Develop a regular inspection plan to ensure that the equipment is in good condition and reduce the risk of equipment failure.

[0255] Safety measures for high-altitude operations: All workers working at heights are required to wear safety belts and receive safety training on high-altitude operations to ensure that all workers have mastered the safety knowledge and operating specifications for high-altitude operations.

[0256] Improve fire-fighting facilities: Conduct a comprehensive inspection of fire-fighting equipment at the construction site, increase the number of fire extinguishers and fire hydrants, and ensure their normal use. Provide regular fire drills to improve the emergency response capabilities of staff.

[0257] Real-time monitoring and tracking: A real-time monitoring system is installed at the construction site to continuously monitor the status of equipment and personnel operations. Once a potential risk occurs, the system will issue a warning signal in real time to ensure prompt action.

[0258] 5. Subsequent feedback and adjustments

[0259] After the safety precautions are implemented, the system will continue to monitor the risk status of the construction work. If the implementation effect of a safety measure does not meet expectations, the system will make adjustments based on feedback to ensure the effectiveness of the safety precautions.

[0260] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A special operation safety risk analysis and warning system based on an accident case database, characterized in that: include: Accident case database (100): used to store historical special construction accident case data and complete the risk chain construction; Risk chain model analysis module (200): by performing safety risk analysis of various dimensions on the accident case library (100), an accident case safety analysis risk library (210) is formed; Comparative analysis module (300): compares, analyzes, and determines the actual situation of the upcoming construction work with the accident case safety analysis risk library (210) to assess possible safety risks; Safety precaution plan formulation module (400): formulates a safety precaution plan for construction operations based on the analysis results and clarifies relevant safety measures; Early warning module (500): issues special warnings for risks of similar accidents that have occurred, and provides accurate early warning information for high-incidence accidents.

2. The special operation safety risk analysis and warning system based on the accident case library according to claim 1, characterized in that: The accident case safety analysis risk library (210) contains accident data of various special construction operations and risk chain element data of each accident case, covering hazard sources, risk types, safety measures, hidden dangers and accident occurrence situations.

3. The special operation safety risk analysis and warning system based on the accident case library as claimed in claim 1, characterized in that: The comparison and analysis module (300) includes: a risk analysis algorithm for comparing the matching degree of the actual situation of the current construction work with the relevant risk factors in the historical accident cases; The evaluation module is used to generate security prevention recommendations and generate specific prevention plans based on existing security regulations.

4. The special operation safety risk analysis and warning system based on the accident case library as claimed in claim 1, characterized in that: The early warning module (500) comprises: High-risk identification module, used to identify safety risks associated with historical high-frequency accident cases and issue warnings before construction work; The real-time monitoring module is used to track possible safety hazards in real time during construction operations and issue safety warnings to operators.

5. The special operation safety risk analysis and warning system based on the accident case library as claimed in claim 1, characterized in that: The specific structure of the safety precaution plan formulation module (400) is as follows: the safety precaution plan formulation module (400) proposes safety precaution measures based on the processing of the construction operation risk analysis results, determines the possible risk sources by analyzing the actual situation of the current construction operation and the matching degree of historical accident cases, and formulates targeted safety precaution plans based on these risk sources and their related factors, so as to ensure the safety of personnel, equipment and environment during the construction process.

6. The special operation safety risk analysis and warning system based on the accident case library as claimed in claim 5, characterized in that: In the safety precaution plan formulation module (400), the safety precaution plan formulation module (400) proposes the specific operation of safety precaution measures based on the processing of the construction operation risk analysis results: Risk prevention goal setting: clarify the prevention goals, and reduce or eliminate potential safety risks through measures. Specific prevention goals include: reducing the probability of accidents caused by dangerous sources, reducing the severity of accidents, and ensuring the effectiveness of safety measures; Safety measures formulation: Based on the risk analysis results, combined with the actual situation of the current construction work and historical accident cases, different safety measures are proposed for different types of risks; Development of prevention plans; Feedback and optimization of security prevention plans.

7. The special operation safety risk analysis and warning system based on the accident case library according to claim 6, characterized in that: The specific operations of safety measures formulation include: Risk identification and assessment: Through the risk chain model, possible accidents are analyzed according to hazard sources, risk types, safety measures, hidden dangers, and accidents, and the main risk factors in the current construction work are identified; Formulate safety measures: In response to these risk factors, the safety prevention plan specifies safety measures to eliminate or reduce the occurrence of risks, including: Equipment inspection and maintenance measures: Regularly inspect construction equipment to ensure that the equipment is in good condition; update or repair aging equipment; Fire prevention measures: Strengthen fire safety management at the construction site, install compliant fire protection facilities, and conduct regular inspections to ensure that the equipment functions properly; Operating procedures and training: Strengthen personnel training, improve operators' awareness of equipment safety and fire prevention, and ensure standardized operations.

8. The special operation safety risk analysis and warning system based on the accident case library according to claim 7, characterized in that: The specific operations of security measures formulation also include: security measures priority ranking: According to the risk assessment results, the safety measures are prioritized. For situations with higher risks or that may lead to serious consequences, corresponding safety measures need to be formulated and implemented first. The priority ranking of safety measures is quantitatively evaluated using the following formula: in: P i is the priority of the ith safety measure; L i is the risk level corresponding to the i-th safety measure, which is usually related to the severity of historical accidents; S i is the implementation effect of the i-th safety measure, indicating its effectiveness in reducing risks; C i is the cost of the ith safety measure, taking into account the input of time, manpower, financial resources, etc.

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