Construction site safety management system based on intelligent construction site

Abstract

The invention discloses a construction site safety management system based on an intelligent construction site, which relates to the technical field of construction site safety management and comprises a cloud server, a data acquisition module, a data transmission module, a data processing module, a safety management module and a user interaction module. Through the arrangement of the data acquisition module, the system can acquire personnel information, environment information and equipment information of the construction site, data analysis requirements of subsequent safety monitoring and management of the construction site are guaranteed, and the system can comprehensively analyze the safety condition of the construction site. Through the arrangement of the safety management module, the system can establish a complete personnel management and equipment management system, ensures that workers have corresponding skills and reasonably use equipment, and improves the emergency response capability at the same time, thereby preventing and avoiding the occurrence of safety accidents to a certain extent, and guaranteeing the safety of a construction site.

Description

Technical Field

[0001] The present invention relates to the technical field of construction site safety management, and in particular to a construction site safety management system based on a smart construction site. Background Art

[0002] With the development of technologies such as the Internet of Things, big data, and artificial intelligence, the concept of smart construction sites has gradually emerged. Smart construction sites collect on-site data through sensors, cameras, drones, and other equipment, and use cloud computing and artificial intelligence technologies to analyze and process them to achieve intelligent management of construction sites. Most safety accidents on construction sites are caused by improper operation of construction site workers. However, the market currently lacks a complete personnel management and equipment management system to ensure that workers have the corresponding skills and use equipment reasonably, so improvements are urgently needed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a construction site safety management system based on a smart construction site, aiming to solve the above-mentioned technical problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A construction site safety management system based on a smart construction site, comprising: Cloud servers; A data acquisition module, wherein the data acquisition module is used to collect safety data of the construction site in real time; A data transmission module, which is used to transmit the security data collected by the data collection module to the edge computing devices distributed on the construction site through a wireless communication network for pre-processing before uploading to the cloud server; A data processing module, which is used to use a data analysis engine to perform in-depth analysis on the collected data transmitted to the cloud server to identify safety incidents or safety hazards; A safety management module, the safety management module includes a personnel management unit, a device management unit and an emergency response unit, and the safety management module is used to coordinate the personnel management unit, the device management unit and the emergency response unit according to the in-depth analysis results of the data processing module to ensure the safety management of the construction site; A user interaction module is used for construction site personnel to check the safety status of the construction site at any time and receive early warning information when a safety accident or safety hazard occurs.

[0005] Preferably, the safety data includes environmental data, equipment data and personnel data.

[0006] Preferably, the environmental data is acquired through various sensors and gas detectors deployed on the construction site, as well as cameras and drones installed on the construction site; the equipment data is acquired through sensors installed on each device; and the personnel data is acquired through smart bracelets and smart helmets worn by construction site personnel.

[0007] Preferably, the personnel management unit includes an activity management subunit and a skill management and training subunit, and the skill management and training subunit is communicatively connected to the activity management subunit.

[0008] Preferably, the activity management subunit is used to divide the construction site into multiple functional areas through the access control device, and the construction site personnel need to pass through the access control device of each functional area before they can enter the corresponding functional area. The specific process is as follows: If the construction site personnel have the skill qualification certificate required for the functional area, they can enter the functional area through the access control device; otherwise, they cannot enter the functional area through the access control device; When an emergency occurs, the activity management subunit can quickly block the dangerous area through the access control system to prevent irrelevant personnel from entering, and notify relevant personnel to take emergency measures.

[0009] Preferably, the skill management and training sub-unit is used to train the skills of construction site personnel and to compile statistics on the skill information of the construction site personnel and then upload it to the cloud server. Specifically, the construction site personnel are trained in the corresponding skills through the skill management and training sub-unit. After passing the skill training, the construction site personnel obtain the corresponding skill qualification certificate and the skill qualification certificate is bound to the construction site personnel, which is then converted into electronic information and entered into the cloud server.

[0010] Preferably, the equipment management unit comprises an equipment online monitoring subunit and an equipment maintenance subunit, and the equipment online monitoring subunit is communicatively connected with the equipment maintenance subunit.

[0011] Preferably, the equipment online monitoring subunit is used to monitor and record the operating data of the equipment in real time. When a violation of regulations or equipment failure is found, the system will immediately issue an early warning.

[0012] Preferably, the equipment maintenance subunit is used to record the maintenance history of the equipment, so as to facilitate subsequent replacement of the equipment according to the maintenance history of the equipment.

[0013] Preferably, the emergency response subunit is used to send early warning information to construction site employees through the user interaction module according to the event level when a safety accident occurs or there is a safety hazard.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: By setting up a safety management module, the system can establish a complete personnel management and equipment management system to ensure that workers have the corresponding skills and use equipment reasonably, while improving emergency response capabilities, thereby preventing and avoiding the occurrence of safety accidents to a certain extent and ensuring the safety of construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 The figure shows a composition diagram of a construction site safety management system based on a smart construction site. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1 An embodiment of a construction site safety management system based on a smart construction site of the present invention is further described.

[0019] A construction site safety management system based on a smart construction site, comprising: Cloud servers; A data acquisition module, wherein the data acquisition module is used to collect safety data of the construction site in real time; The safety data includes environmental data, equipment data and personnel data. The environmental data is acquired through various sensors and gas detectors deployed on the construction site, as well as cameras and drones installed on the construction site; the equipment data is acquired through sensors installed on each device; and the personnel data is acquired through smart bracelets and smart helmets worn by construction site personnel.

[0020] By setting up a data acquisition module, the system can collect personnel information, environmental information and equipment information of the construction site, ensuring the subsequent data analysis needs for safety monitoring and management of the construction site, so that the system can analyze the safety situation of the construction site from all aspects.

[0021] A data transmission module, which is used to transmit the security data collected by the data collection module to the edge computing devices distributed on the construction site through a wireless communication network for pre-processing before uploading to the cloud server; It should be noted that the transmission of security data can be achieved through wireless communication technologies such as Wi-Fi, LoRa, and NB-IoT, thereby ensuring real-time transmission of data. Distributing edge computing nodes on construction sites facilitates the preprocessing and preliminary analysis of the collected security data, thereby reducing the amount of data transmitted to the cloud server and shortening the response time of this system.

[0022] A data processing module, which is used to use a data analysis engine to perform in-depth analysis on the collected data transmitted to the cloud server to identify safety incidents or safety hazards; The data analysis engine uses big data technology and machine learning algorithms to conduct in-depth analysis of data transmitted to the cloud server to identify safety accidents or safety hazards, thereby preventing harm to construction site personnel.

[0023] A safety management module, the safety management module includes a personnel management unit, a device management unit and an emergency response unit, and the safety management module is used to coordinate the personnel management unit, the device management unit and the emergency response unit according to the in-depth analysis results of the data processing module to ensure the safety management of the construction site; By setting up a safety management module, the system can establish a complete personnel management and equipment management system to ensure that workers have the corresponding skills and use equipment reasonably, while improving emergency response capabilities, thereby preventing and avoiding the occurrence of safety accidents to a certain extent and ensuring the safety of construction sites.

[0024] The personnel management unit includes an activity management subunit and a skill management subunit, and the skill management subunit is connected to the activity management subunit. The skill management subunit is used to train the skills of construction site personnel and collect statistics on the skill information of construction site personnel and then upload it to the cloud server. Specifically, the construction site personnel are trained in the corresponding skills through the skill management subunit. After passing the skill training, the construction site personnel obtain the corresponding skill qualification certificate and the skill qualification certificate is bound to the construction site personnel, and then converted into electronic information and entered into the cloud server.

[0025] The skill management training sub-unit is conducted through online learning platforms (such as video tutorials, online tests) or offline practical operation training. The skills that can be trained include but are not limited to welding, electrical work, mechanical operation, etc. After the construction site personnel training is completed, the workers' skill level is evaluated through a combination of theoretical examinations and practical operation assessments. Those who pass the assessment will obtain the corresponding skill qualification certificate. The certificate content includes the worker's basic information, training content, assessment results, etc. After obtaining the skill qualification certificate, the system automatically binds the certificate information to the worker and converts it into electronic information and enters it into the cloud server. The electronic information entered includes but is not limited to the worker's name, ID number, facial image, skill type, certificate number, issue date, validity period, etc.

[0026] It should be noted that by setting up a skill management training sub-unit and through systematic skill training courses, we can ensure that all workers receive training with uniform standards, avoid safety hazards caused by differences in personal experience, and reduce the occurrence of safety accidents by improving workers' skill levels and safety awareness. At the same time, professionally trained workers will take better care of equipment, reduce equipment damage caused by improper use, extend equipment service life, and avoid safety hazards caused by incorrect operation.

[0027] The activity management subunit is used to divide the construction site into multiple functional areas through the access control device. Construction site personnel need to pass through the access control device of each functional area to enter the corresponding functional area. The specific process is as follows: if the construction site personnel have the skill qualification certificate required for the functional area, the construction site personnel can enter the functional area through the access control device; otherwise, they cannot enter the functional area through the access control device; when an emergency occurs, the activity management subunit can quickly block the dangerous area through the access control system to prevent irrelevant personnel from entering, and notify relevant personnel to take emergency measures. For example, suppose that person A wants to work in the welding functional area. First, person A participates in the welding skill training course provided by the skill management training sub-unit. After theoretical and practical operation assessments, person A successfully obtains the welding skill qualification certificate. The system automatically generates an electronic certificate and binds it to person A. The relevant information is entered into the cloud server. Person A comes to the entrance of the welding functional area. The access control device starts the face recognition program. The camera captures the face image of person A and verifies his identity and skill qualifications through the cloud server. The verification result shows that person A holds a valid welding qualification certificate. The access control device is unlocked and person A is allowed to enter. After person A enters the welding area, the cameras in the welding area begin to collect site scene pictures in real time. CNN and deep learning models analyze these pictures to monitor whether there are any unsafe behaviors. If it is found that person A is not wearing protective equipment or other violations, the system immediately locks person A and sends a warning message through the user interaction module, thereby ensuring the personal safety of construction site personnel.

[0028] By setting up an activity management subunit, the access control device divides the construction site into multiple functional areas and strictly controls access rights according to the workers' skill qualification certificates. Only workers with corresponding skills can enter specific functional areas, reducing the risk of unauthorized or unqualified personnel operating. The access control device is connected to the cloud server and can instantly verify the worker's facial information and skill qualifications to ensure that each entry goes through a strict authentication process to prevent workers without relevant skills from mistakenly entering high-risk areas such as welding areas and high-altitude work areas, thereby reducing the accident rate. When an emergency occurs, the activity management subunit can quickly block the dangerous area through the access control system to prevent irrelevant personnel from entering, and notify relevant personnel to take emergency measures, greatly reducing the losses caused by safety accidents.

[0029] The equipment management unit includes an equipment online monitoring subunit and an equipment maintenance subunit, and the equipment online monitoring subunit is communicatively connected with the equipment maintenance subunit. The equipment online monitoring subunit is used to monitor and record the operation data of the equipment in real time. When a violation of regulations or a failure of the equipment is found, the system will immediately issue an early warning. Specifically, various sensors (such as temperature sensors, pressure sensors, vibration sensors, etc.) deployed on the equipment continuously collect various parameters of the equipment during operation, and store the collected data in the cloud server to form a historical operation record for subsequent analysis and auditing. Data analysis algorithms (such as time series analysis and machine learning models) are used to process real-time data to identify possible illegal operations or equipment failures. When an abnormal situation is detected, an alarm is immediately triggered, and relevant personnel are notified through the user interaction module; Example of illegal operation warning: Multiple sensors are installed on the crane, including weight sensors, angle sensors, speed sensors, etc., which are used to monitor key parameters such as lifting weight, boom angle, and lifting speed. These sensors send data to the edge computing device every few seconds to ensure the real-time nature of the data. The edge computing device performs preliminary processing on the received data (such as filtering noise and compressing data) and then uploads it to the cloud server. The cloud server saves all historical data to form a complete operation record for subsequent review and analysis. The long short-term memory network (LSTM) or other time series prediction models are used to train historical data and learn normal operating modes. During real-time monitoring, if the current operating parameters are found to deviate from the normal range (for example, the lifting weight exceeds the rated value, the boom angle is too large, etc.), the system will immediately mark it as abnormal. When an abnormal situation is detected, an alarm is immediately triggered and relevant personnel are notified through the user interaction module.

[0030] Equipment failure warning example: Temperature sensors, vibration sensors and pressure sensors are installed on the key components of the crane (such as motors, hydraulic systems, brakes, etc.). These sensors continuously monitor the operating status of the equipment to ensure that potential problems can be captured in a timely manner. All sensor data is transmitted to the edge computing device for preprocessing and then uploaded to the cloud server. The cloud server not only saves the current data, but also combines historical data to form a comprehensive operation archive. It uses machine learning models (such as random forests, support vector machines, etc.) to analyze the historical operation data of the equipment and establish a feature model of the normal state. During real-time monitoring, if the temperature of a key component suddenly rises, the vibration amplitude increases abnormally, or the hydraulic system pressure is unstable, the system will mark it as a potential fault. When an abnormal situation is detected, an alarm is triggered immediately and relevant personnel are notified through the user interaction module.

[0031] By setting up an equipment online monitoring sub-unit, the system can continuously collect various parameters during equipment operation to ensure that any abnormalities can be discovered in time. Once an illegal operation or potential failure is detected, the system will immediately issue an alarm to notify relevant personnel to take measures to prevent accidents. By identifying potential problems in advance, preventive maintenance measures can be taken to avoid accidents caused by equipment failure.

[0032] The equipment maintenance subunit is used to record the maintenance history of the equipment, so as to facilitate the subsequent replacement of the equipment according to the maintenance history of the equipment. Taking the crane at the construction site as an example, the maintenance scenario of the crane is as follows: generate equipment health reports every week to remind the maintenance team to pay attention to the status of key components and arrange necessary maintenance work in advance. The maintenance personnel check and lubricate the key parts of the crane (such as motors, hydraulic systems, brakes, etc.) every week according to the system prompts. After each maintenance is completed, the maintenance personnel will enter the maintenance details into the system, including the date, maintenance content, tools and materials used, problems found and treatment measures, etc. The system automatically generates a maintenance task order and stores it in the cloud server to ensure that all records are safe and reliable. The system regularly analyzes all maintenance records to identify common problems and trends, such as frequent problems with certain components or a high failure rate in a specific time period. Based on these analysis results, the system recommends optimizing the maintenance plan, such as increasing the inspection frequency of certain components or preparing spare parts in advance; The replacement scenario for the crane is as follows: the system continuously tracks the operating parameters and maintenance records of the crane to form a comprehensive operation file. Combined with the data from the equipment's online monitoring sub-unit, the system can more accurately assess the overall health of the equipment and use machine learning models to conduct in-depth analysis of historical maintenance data to predict possible future failure points and equipment life. If the maintenance frequency of a key component is too high or its performance gradually declines, the system will mark the component as a high-risk area and recommends special attention. When the cumulative maintenance cost of a component is close to its replacement cost, or if a major failure is predicted to occur in the short term in the future, the system will issue a replacement recommendation. Management can make a final decision on whether to replace the equipment based on the system's recommendations, combined with the budget and construction progress. After deciding to replace the equipment, the system automatically creates a purchase task order to specify the specifications, quantity and supplier information of the required parts. After the replacement is completed, the information of the new equipment (such as model, production date, warranty period, etc.) is entered into the system, and the equipment file is updated to ensure that all records are kept up to date.

[0033] By setting up an equipment maintenance sub-unit, the equipment can be regularly inspected and maintained, potential problems can be discovered and repaired in a timely manner, accidents caused by equipment failure can be prevented, the risk of worker injury due to equipment failure can be reduced, and the personal safety of construction workers can be guaranteed.

[0034] The emergency response subunit is used to send early warning information to construction site employees through the user interaction module according to the event level when a safety accident or safety hazard occurs. (The classification standard for event levels is as follows: Level 1 events: such as minor equipment failures, workers not wearing safety helmets, etc., have little impact on personnel and construction progress; Level 2 events: such as local fires, small collapses, etc., may have an impact on some areas and require immediate measures; Level 3 events: such as large fires, major collapses, toxic gas leaks, etc., pose a threat to the entire construction site and must be quickly evacuated and rescued.) The details are as follows: If it is a Level 1 incident, the process is as follows: Issue Detected: The system detects a minor safety hazard in a functional area, such as a worker not wearing a hard hat or a minor equipment malfunction.

[0035] Generate warning information: The system automatically generates a warning message containing the event description, location and response measures, marked as "Level 1 event".

[0036] Select notification method: Since the incident was relatively minor, the system chose to send warning messages to employees in relevant areas through mobile applications to remind them to pay attention to safety.

[0037] Action Notification: A pop-up warning message appears on the mobile app with specific action suggestions, such as “Please wear a helmet immediately” or “Please check the status of your device.”

[0038] If it is a Level 2 event, the process is as follows: Problem Detected: The system detects a moderate safety incident in an area, such as a local fire or a small collapse.

[0039] Generate warning information: The system automatically generates a warning message containing the event description, location, level and response measures, marked as "Level 2 event".

[0040] Select notification method: The system chooses to send warning information via SMS and mobile application at the same time to ensure that the message is conveyed to relevant personnel quickly.

[0041] Execution notification: SMS notification is sent to the mobile phones of all employees in the involved areas. The content is concise and clear, such as "Emergency Notice: Fire has occurred in Area B of the Welding Area. Please evacuate immediately." At the same time, the mobile application pops up detailed warning information, provides map navigation and voice prompts to help employees quickly find a safe exit.

[0042] Subsequent processing: The system automatically records the event handling process and generates a task order to arrange for the maintenance team to repair it.

[0043] If it is a Level 3 incident, the process is as follows: Problem detected: The system detects a serious safety incident, such as a large fire, major collapse, or toxic gas leak.

[0044] Generate warning information: The system automatically generates a warning message containing the event description, location, level and emergency response measures, marked as a "Level 3 event".

[0045] Select notification method: The system chooses to comprehensively release warning information through SMS, mobile applications and broadcast systems to ensure that all employees can receive emergency notifications.

[0046] Execution notification: The broadcasting system plays emergency evacuation instructions, such as "Attention all personnel, a major accident has occurred on the construction site. Please evacuate immediately according to the evacuation route." The text message notification is sent to all employees' mobile phones. The content is concise and clear, such as "Emergency notice: A major accident has occurred on the construction site. Please evacuate to a safe area immediately." Smart wearable devices vibrate to remind and display detailed warning information to help workers obtain information in noisy environments.

[0047] Subsequent processing: The system automatically activates the emergency plan, dispatches emergency vehicles and rescue teams, and ensures the safe evacuation of personnel. All emergency processing processes are recorded and detailed reports are generated for subsequent review and analysis.

[0048] Through the set up emergency response sub-unit, the emergency response sub-unit can quickly and accurately send early warning information to construction site employees through a variety of user interaction modules under different event levels, which not only improves the ability to respond to emergencies, but also ensures the breadth and effectiveness of information transmission. According to different event levels, corresponding early warning strategies are formulated to ensure the timeliness and pertinence of information transmission, effectively prevent and control the occurrence of accidents, thereby maximizing the safety of construction site personnel and the stability of construction progress.

[0049] A user interaction module is used for construction site personnel to check the safety status of the construction site at any time and receive early warning information when a safety accident or safety hazard occurs.

[0050] The user interaction module can send warning information to construction site personnel in the following way: SMS notification: Send SMS directly to employees' mobile phones, suitable for all levels of events, especially in emergencies.

[0051] Mobile applications: Warning messages pop up through site-specific mobile applications, providing a richer interactive experience, such as map navigation, voice prompts, etc.

[0052] Broadcasting system: Emergency notices are broadcast through the construction site's broadcasting system, which has a wide coverage area and is suitable for large-scale evacuation or the communication of important information.

[0053] Smart wearable devices: For workers wearing smart bracelets or smart helmets, early warning information can be sent through vibration reminders and screen displays, which is particularly suitable for noisy environments.

[0054] By setting up a user interaction module, the system can reasonably select notification methods, avoid information overload, ensure that key information is communicated first, improve resource utilization efficiency, and enhance employees' sense of security and trust through intelligent information transmission methods.

[0055] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction site safety management system based on a smart construction site, characterized in that: include: Cloud servers; A data acquisition module, wherein the data acquisition module is used to collect safety data of the construction site in real time; A data transmission module, which is used to transmit the security data collected by the data collection module to the edge computing devices distributed on the construction site through a wireless communication network for pre-processing before uploading to the cloud server; A data processing module, which is used to use a data analysis engine to perform in-depth analysis on the collected data transmitted to the cloud server to identify safety incidents or safety hazards; A safety management module, the safety management module includes a personnel management unit, a device management unit and an emergency response unit, and the safety management module is used to coordinate the personnel management unit, the device management unit and the emergency response unit according to the in-depth analysis results of the data processing module to ensure the safety management of the construction site; A user interaction module is used for construction site personnel to check the safety status of the construction site at any time and receive early warning information when a safety accident or safety hazard occurs.

2. A construction site safety management system based on a smart construction site according to claim 1, characterized in that: The safety data includes environmental data, equipment data and personnel data.

3. A construction site safety management system based on a smart construction site according to claim 2, characterized in that: The environmental data is acquired through various sensors and gas detectors deployed on the construction site, as well as cameras and drones installed on the construction site; the equipment data is acquired through sensors installed on each device; and the personnel data is acquired through smart bracelets and smart helmets worn by construction site personnel.

4. The construction site safety management system based on a smart construction site according to claim 1 is characterized in that: The personnel management unit includes an activity management subunit and a skill management and training subunit, and the skill management and training subunit is communicatively connected with the activity management subunit.

5. A construction site safety management system based on a smart construction site according to claim 4, characterized in that: The activity management subunit is used to divide the construction site into multiple functional areas through the access control device. The construction site personnel need to pass through the access control device of each functional area before they can enter the corresponding functional area. The specific process is as follows: If the construction site personnel have the skill qualification certificate required for the functional area, they can enter the functional area through the access control device; otherwise, they cannot enter the functional area through the access control device; When an emergency occurs, the activity management subunit can quickly block the dangerous area through the access control system to prevent irrelevant personnel from entering, and notify relevant personnel to take emergency measures.

6. A construction site safety management system based on a smart construction site according to claim 5, characterized in that: The skill management and training sub-unit is used to train the skills of construction site personnel and to compile statistics on the skill information of construction site personnel and then upload it to the cloud server. Specifically, construction site personnel are trained in corresponding skills through the skill management and training sub-unit. After passing the skill training, the construction site personnel obtain the corresponding skill qualification certificate and the skill qualification certificate is bound to the construction site personnel, which is then converted into electronic information and entered into the cloud server.

7. A construction site safety management system based on a smart construction site according to claim 6, characterized in that: The equipment management unit comprises an equipment online monitoring subunit and an equipment maintenance subunit, and the equipment online monitoring subunit is communicatively connected with the equipment maintenance subunit.

8. The construction site safety management system based on smart construction site according to claim 7 is characterized in that: The equipment online monitoring subunit is used to monitor and record the operation data of the equipment in real time. When a violation of regulations or equipment failure is found, the system will immediately issue an early warning.

9. A construction site safety management system based on a smart construction site according to claim 8, characterized in that: The equipment maintenance subunit is used to record the maintenance history of the equipment, so as to facilitate the subsequent replacement of the equipment according to the maintenance history of the equipment.

10. The construction site safety management system based on smart construction site according to claim 1, characterized in that: The emergency response subunit is used to send early warning information to construction site employees through the user interaction module according to the event level when a safety accident occurs or there is a safety hazard.

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