A construction worker safety monitoring and early warning system

Abstract

This invention discloses a safety monitoring and early warning system for construction workers, relating to the field of construction early warning. It includes a monitoring and early warning system and a safety helmet. The monitoring and early warning system comprises an identity binding module, a signal receiving module, an early warning judgment module, a mobile push module, and a data storage module. The safety helmet consists of a helmet shell, a helmet liner, and a floating top pad. A pad is located below the floating top pad at the perforation. A mounting shell is fixed to the lower surface of the helmet liner. The pad and the mounting shell are connected by a compression assembly. A control chip is fixed to the inner bottom wall of the mounting shell by screws. An infrared heat source sensor and a pressure sensor are respectively installed on the top plates of the pad and the compression assembly. This invention accurately identifies violations such as not wearing a helmet or wearing it improperly through dual detection. Combined with the monitoring and early warning system, it constructs a comprehensive safety management mechanism, facilitating managers to statistically analyze historical data, summarize patterns, and improve the level of safety management at construction sites.

Description

Technical Field

[0001] This invention mainly relates to the technical field of construction safety early warning, specifically a construction personnel safety monitoring and early warning system. Background Technology

[0002] During construction, improper wearing of safety helmets and smoking in violation of regulations are significant contributing factors to safety accidents. For example, some construction workers fail to fasten the chin strap of their safety helmets, causing them to easily fall off in the event of an accident and failing to provide effective head protection. Furthermore, smoking in areas where flammable materials are stored or where open flames are present can easily cause fires or explosions, seriously threatening the lives and property of personnel on the construction site. These seemingly minor unsafe behaviors often become the trigger for major safety accidents and must be given high priority and strict management.

[0003] The prior art describes a construction safety early warning system and its early warning device. The system includes: a data acquisition module for collecting information from the construction site, stamping the collected information in segments with timestamps, storing the data, and periodically and quantitatively polling and cleaning the data; and a data processing module connected to the data acquisition module.

[0004] While the aforementioned technologies can monitor and warn about whether personnel are wearing safety helmets, reducing the probability of workers violating regulations, and can promptly feed back monitoring data to the back-end management module through monitoring of personnel and the environment, thereby enabling real-time monitoring and prediction of accidents, they are not convenient for detecting the degree of helmet wearing compliance, making it difficult to distinguish between violations such as not wearing helmets or wearing them improperly, which can easily lead to misjudgments or omissions, resulting in safety helmets failing to provide effective protection. Furthermore, they are difficult to effectively control smoking violations in flammable work areas. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a safety monitoring and early warning system for construction personnel to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A construction worker safety monitoring and early warning system includes a monitoring and early warning system and a safety helmet. The monitoring and early warning system includes an identity binding module, a signal receiving module, an early warning determination module, a mobile terminal push module, and a data storage module. The identity binding module is used to bind the unique ID of the safety helmet with the identity information of the construction worker. The signal receiving module is used to receive various signals sent by sensors in the safety helmet. The early warning determination module is used to analyze and process the received signals and determine that the safety helmet is not worn correctly. The mobile terminal push module is used to push early warning information to the mobile phone of the on-site safety officer. The data storage module is used to store identity binding information, various detection signals, early warning records, and handling records. The safety helmet consists of a helmet shell, a helmet liner, and a floating top pad. The floating top pad has perforations, and a pad is located below the perforations. A mounting shell is fixed to the lower surface of the helmet liner. The pad and the mounting shell are connected by a compression assembly. A control chip is fixed to the inner bottom wall of the mounting shell by screws. The control chip is equipped with a wireless transmission module, an identification module, and a power supply module. An infrared heat source sensor and a pressure sensor are respectively installed on the top plate of the pad and the compression assembly. Both the infrared heat source sensor and the pressure sensor are used to detect the wearing status and transmit the detection signals to the monitoring and early warning system.

[0007] Specifically, in this technical solution, the cap liner is located inside the cap shell and is bonded together, the floating top pad is located below the cap liner and is connected to the inside of the cap shell through an elastic connector, the pad matches the perforation, and the pad and the floating top pad are made of the same material.

[0008] Specifically, the extrusion assembly includes a top plate, the outer wall of which is fixedly connected to the inner wall of the mounting shell. The pressure sensor is mounted on the lower surface of the top plate by screws. A pressure block is provided below the pressure sensor. The pressure block penetrates the bottom wall of the mounting shell and is slidably connected to the contact area. Guide plates are hot-melt welded to both sides of the pressure block. Guide rods penetrate through both guide plates. The two ends of the two guide rods are fixedly connected to the top plate and the inner bottom wall of the mounting shell, respectively.

[0009] Specifically, in this technical solution, a silicone block is bonded to the bottom of the pressure block, and the bottom of the silicone block is bonded to the upper surface of the gasket. Support springs are sleeved on the outside of the two guide rods, and the two ends of the two support springs are in contact with the lower surface of the top plate and the upper surface of the corresponding guide plate, respectively.

[0010] Specifically, in this technical solution, a smoke hood is embedded at the front edge of the cap shell, and a smoke control detection tube is inserted through the mounting shell. Both ends of the smoke control detection tube pass through the cap liner and the cap shell in sequence. One end of the smoke control detection tube is connected to the upper surface of the smoke hood, and a smoke sensor is installed on the inner wall of the smoke control detection tube at the mounting shell. The bottom end of the smoke sensor passes through the smoke control detection tube and is connected to the control chip through a wire.

[0011] Specifically, the identity binding module inputs basic information such as the name, work number, and work group of construction personnel through the construction site management platform, and associates and binds this information with the unique ID built into the safety helmet. During the binding process, the system automatically verifies the integrity and uniqueness of the information to ensure that each safety helmet corresponds to a unique construction personnel identity. At the same time, it supports two binding methods: batch import and single addition, which makes it convenient for managers to efficiently complete the identity binding operation according to actual needs, and provides accurate basic identity data for subsequent safety monitoring and accountability.

[0012] Specifically, the signal receiving module is equipped with a signal filtering unit and a signal strength monitoring unit. The signal filtering unit can perform noise reduction processing on the received raw signal, eliminate invalid signals caused by environmental interference factors, and then transmit the processed valid signal to the early warning judgment module. The signal strength monitoring unit can automatically report the abnormal device connection information to the monitoring and early warning system when the signal strength of a certain safety helmet is continuously lower than the threshold, so that the management personnel can check the communication status of the safety helmet in a timely manner.

[0013] Specifically, in this technical solution, the pre-set pressure threshold of the early warning judgment module is 5-10N and the infrared heat source threshold is 36℃. When the pressure value detected by the pressure sensor is lower than 5N for 5 seconds and the infrared heat source sensor does not detect a heat source signal of 36℃ or above, the system determines that the safety helmet is not being worn. If the pressure value is within the range of 5-10N but the infrared heat source sensor does not detect a valid heat source signal, or if the pressure value is higher than 10N but the heat source signal fluctuates abnormally, the system determines that the wearing is not in accordance with regulations. The warning and judgment module also combines the smoke sensor data transmitted by the signal receiving module. When the smoke concentration exceeds the preset safety threshold, it is judged as illegal smoking.

[0014] Specifically, the mobile push module can automatically generate warning information including the warning type, the identity information of the personnel involved, and the time of the warning occurrence based on the judgment result of the warning judgment module, and push it to the mobile terminal of the on-site safety officer in real time through an encrypted communication channel to ensure that the safety officer notices it as soon as possible.

[0015] Specifically, the data storage module of this technical solution can store the identity binding information of construction personnel, pressure signals collected in real time by the safety helmet sensor, infrared heat source signals, smoke concentration data, as well as various early warning records and safety officer handling records generated by the system in a long-term and secure manner.

[0016] In summary, the present invention has the following advantages: through the coordinated design of the floating top pad and the compression component on the safety helmet, combined with the dual detection of the infrared heat source sensor and the pressure sensor, it can accurately identify different violations such as not wearing the helmet or wearing it improperly, thus eliminating the problem of protective failure caused by false wearing. Meanwhile, the combined setup of the smoke hood and the smoke detection tube can accurately capture the smoke produced by smoking, effectively avoid various interference factors in the construction environment, and achieve accurate identification of illegal smoking behavior, thereby reducing the risk of safety accidents caused by improper wearing and illegal smoking, and protecting the life and property safety of personnel at the construction site. By organically combining the monitoring and early warning system with safety helmets, a comprehensive safety management mechanism has been constructed. The various modules in the monitoring and early warning system facilitate managers to conduct statistical analysis of historical data, summarize safety management patterns, optimize safety supervision strategies, and improve the overall safety management level of the construction site. Attached Figure Description

[0017] Figure 1 This is a block diagram of the early warning system of the present invention; Figure 2 This is an orthographic schematic diagram of the safety helmet of the present invention; Figure 3 This is a schematic diagram of the safety helmet of the present invention in oblique axonometric projection; Figure 4 This is a cross-sectional orthogonal axonometric structural diagram of the safety helmet of the present invention; Figure 5 This is a schematic diagram of the front cross-sectional structure of the safety helmet of the present invention; Figure 6 This is a schematic diagram of the mounting shell and extrusion assembly structure of the present invention; Figure 7 This is a block diagram of the control chip of the present invention.

[0018] Figure Descriptions: 1. Safety Helmet; 101. Helmet Shell; 102. Helmet Liner; 103. Floating Top Pad; 1031. Perforation; 1032. Elastic Connector; 2. Mounting Shell; 201. Control Chip; 3. Extrusion Assembly; 301. Top Plate; 302. Guide Rod; 303. Pressure Block; 3031. Guide Plate; 304. Support Spring; 305. Silicone Block; 4. Pressure Sensor; 5. Infrared Heat Source Sensor; 6. Smoke Detection Tube; 601. Smoke Hood; 602. Smoke Sensor; 7. Gasket; 8. Monitoring and Early Warning System. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to 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 should not be construed as limiting the present invention.

[0020] The embodiments of the present invention will now be described.

[0021] In this embodiment, please refer to Figure 1 - Figure 5 As shown, a construction worker safety monitoring and early warning system includes a monitoring and early warning system 8 and a safety helmet 1. The monitoring and early warning system 8 includes an identity binding module, a signal receiving module, an early warning judgment module, a mobile terminal push module, and a data storage module. The identity binding module is used to bind the unique ID of the safety helmet 1 with the identity information of the construction worker. The signal receiving module is used to receive various signals sent by the sensors in the safety helmet 1. The early warning judgment module is used to analyze and process the received signals and determine that the safety helmet 1 is not worn correctly. The mobile terminal push module is used to push early warning information to the mobile phone of the on-site safety officer. The data storage module is used to store identity binding information, various detection signals, early warning records, and handling records. The identity binding module inputs basic information such as the name, work number, and work group of construction personnel through the construction site management platform, and associates and binds this information with the unique ID built into the safety helmet 1. During the binding process, the system automatically verifies the integrity and uniqueness of the information to ensure that each safety helmet 1 corresponds to a unique construction personnel identity. At the same time, it supports two binding methods: batch import and single addition, which makes it convenient for managers to efficiently complete the identity binding operation according to actual needs, and provides accurate identity basic data for subsequent safety monitoring and accountability. The signal receiving module is equipped with a signal filtering unit and a signal strength monitoring unit. The signal filtering unit can reduce noise in the received raw signal, remove invalid signals caused by environmental interference factors, and then transmit the processed valid signal to the early warning judgment module. The signal strength monitoring unit can automatically send the device connection abnormality information to the monitoring and early warning system when the signal strength of a certain safety helmet 1 is continuously lower than the threshold, so that the management personnel can check the communication status of the safety helmet 1 in time. The warning judgment module has a preset pressure threshold of 5-10N and an infrared heat source threshold of 36℃. When the pressure value detected by the pressure sensor 4 is below 5N for 5 seconds and the infrared heat source sensor 5 does not detect a heat source signal of 36℃ or above, the system determines that the safety helmet 1 is not being worn. If the pressure value is within the range of 5-10N but the infrared heat source sensor 5 does not detect a valid heat source signal, or if the pressure value is higher than 10N but the heat source signal fluctuates abnormally, the system determines that the wearing is not in accordance with regulations. The warning and judgment module will also combine the data from the smoke sensor 602 transmitted by the signal receiving module. When the smoke concentration exceeds the preset safety threshold, it will be judged as illegal smoking. The mobile push module can automatically generate warning information including the warning type, the identity information of the personnel involved, and the time of the warning based on the judgment result of the warning judgment module, and push it to the mobile terminal of the on-site safety officer in real time through an encrypted communication channel to ensure that the safety officer notices it as soon as possible. The data storage module can store the identity binding information of construction personnel, the pressure signal, infrared heat source signal, smoke concentration data collected in real time by the safety helmet sensor, as well as various early warning records and safety officer handling records generated by the system for a long time and securely, which is convenient for subsequent safety inspections, hazard review and accident responsibility tracing. The safety helmet 1 consists of a shell 101, a liner 102, and a floating top pad 103. The shell 101 is made of impact-resistant and puncture-resistant engineering plastic in one piece, serving as the outer protective structure of the safety helmet 1. It supports the liner 102, the floating top pad 103, and various detection components, ensuring head protection performance. The liner 102 is made of soft and breathable composite material and is located inside the shell 101 and is bonded together. It isolates the shell 101 from the human head, reducing pressure and improving wearing comfort, while also providing secondary impact cushioning. The floating top pad 103 is located below the liner 102 and is connected to the inside of the shell 101 via an elastic connector 1032. The connection, the elastic connector 1032 is made of elastic silicone material and is distributed in a circumferential array, which can realize the up and down floating of the floating top pad 103 to adapt to the head contours of different people. The floating top pad 103 has a perforation 1031. The bottom of the floating top pad 103 is provided with a pad 7 at the perforation 1031. The pad 7 matches the perforation 1031. The pad 7 is made of the same material as the floating top pad 103 to ensure the fit and comfort when wearing, and avoid local pressure discomfort. The lower surface of the cap liner 102 is fixed with a mounting shell 2. The mounting shell 2 is made of waterproof and impact-resistant engineering plastic. The pad 7 and the mounting shell 2 are connected by a compression component 3. The inner bottom wall of the mounting shell 2 is fixed with a control chip 201 by screws. The control chip 201 is equipped with a wireless transmission module, an identification module, and a power supply module. The power supply module uses a rechargeable lithium battery to provide stable power to the control chip 201, various sensors, and the wireless transmission module. It also supports USB charging for easy daily maintenance. The wireless transmission module uses low-power wireless communication technology to transmit the detection signals from each sensor to the signal receiving module of the monitoring and early warning system 8. The identification module stores the unique ID of the safety helmet 1, providing a basis for identity binding. The top plate 301 in the pad 7 and the compression assembly 3 are respectively equipped with an infrared heat source sensor 5 and a pressure sensor 4. Both the infrared heat source sensor 5 and the pressure sensor 4 are connected to the control chip 201 through wires to collaboratively detect the wearing status of the safety helmet 1 and transmit the detection signal to the control chip 201 for detecting the wearing status and transmitting the detection signal to the monitoring and early warning system 8.

[0022] The monitoring and early warning system 8 is implemented based on the construction site management platform. Its core functional modules interact with the platform through an encryption protocol. As the central system, the construction site management platform not only provides basic data support for the monitoring and early warning system, but also displays the status information of each safety helmet, the distribution of early warning events, and the processing progress in real time. First, the management personnel can enter the basic information of the construction personnel, such as their name, work number, and work group, through the platform. At the same time, they can read the unique ID built into the safety helmet 1 and bind the personnel information with the safety helmet 1. During the binding process, the system automatically verifies the integrity and uniqueness of the information to ensure that each safety helmet 1 corresponds to a unique construction personnel identity. After the binding is completed, the identity binding information is synchronously stored in the data storage module to provide an identity basis for subsequent monitoring and traceability. When construction workers wear safety helmet 1, their heads press against the floating top pad 103. Under the pressure of the head, the floating top pad 103 moves upward, causing the pad 7 to move upward synchronously. The pad 7 pushes the pressure block 303 upward through the silicone block 305 set in the compression assembly 3. The pressure block 303 contacts the pressure sensor 4 and generates a compression force. At this time, the pressure sensor 4 detects the pressure signal. At the same time, the infrared heat source sensor 5 on the pad 7 is close to the head and detects the human body heat source signal. The two sensors transmit the detected valid signals to the control chip 201. The control chip 201 sends the signal to the signal receiving module of the monitoring and early warning system 8 through the wireless transmission module. The signal receiving module performs noise reduction processing on the received signal through the signal filtering unit, removes invalid interference signals, and then transmits the valid signal to the early warning determination module. The early warning determination module determines that the safety helmet 1 is correctly worn according to the preset threshold and does not trigger an early warning. If a person is not wearing a safety helmet 1, the pressure sensor 4 cannot detect a valid pressure signal, and the infrared heat source sensor 5 cannot detect a human body heat source signal. The warning judgment module determines that the helmet is not being worn. If the helmet is not worn correctly, causing the pressure value detected by the pressure sensor 4 or the heat source signal detected by the infrared heat source sensor 5 to not meet the preset threshold, the warning judgment module determines that the helmet is not being worn correctly. Once the warning judgment module determines that the person is not wearing the mask or is wearing it improperly, it immediately sends a warning command to the mobile terminal push module. The mobile terminal push module automatically generates a warning message containing the warning type, the identity information of the person involved, and the time of the warning. This message is then pushed to the mobile terminal of the on-site safety officer in real time through an encrypted communication channel, ensuring that the safety officer can detect the hazard and go to the scene to handle it as soon as possible. After the safety officer has handled the situation, he enters the handling result into the system, and the handling record is simultaneously stored in the data storage module. Throughout the entire operation, the signal strength monitoring unit of the signal receiving module monitors the signal transmission status of each safety helmet 1 in real time. If the signal strength of a certain safety helmet 1 is consistently lower than the threshold, it promptly reports the abnormal device connection information to the monitoring and early warning system 8, facilitating troubleshooting by management personnel. The data storage module continuously stores identity binding information, sensor detection signals, early warning records, and handling records, forming a complete control data chain. This provides a reliable basis for subsequent safety inspections, hazard reviews, and accident liability tracing. Meanwhile, the power supply module provides stable power to all components of the safety helmet 1, ensuring continuous normal operation of the equipment. The elastic connector 1032 and the support spring 304 reset the floating top pad 103 and the pressure block 303 after the personnel remove the safety helmet 1, preparing for the next wearing test. Thus, through the coordinated design of the floating top pad 103 and the compression component 3 on the safety helmet 1, and with the dual detection of the infrared heat source sensor 5 and the pressure sensor 4, different violations such as not wearing the helmet or wearing it improperly can be accurately identified, eliminating the problem of protective failure caused by false wearing. Furthermore, through the organic integration of the monitoring and early warning system 8 and the safety helmet 1, a comprehensive safety management mechanism is constructed. The various modules in the monitoring and early warning system 8 facilitate managers to conduct statistical analysis of historical data, summarize safety management patterns, optimize safety supervision strategies, and improve the overall safety management level of the construction site.

[0023] Please see Figure 4 and Figure 6As shown, the compression assembly 3 includes a top plate 301. The outer wall of the top plate 301 is fixedly connected to the inner wall of the mounting shell 2. A pressure sensor 4 is mounted on the lower surface of the top plate 301 by screws. A pressure block 303 is provided below the pressure sensor 4 to detect the compression force and thus determine the wearing status. The pressure block 303 penetrates the bottom wall of the mounting shell 2 and is slidably connected to the contact area. Guide plates 3031 are hot-melt welded to both sides of the pressure block 303. Guide rods 302 penetrate both guide plates 3031 to guide the sliding of the pressure block 303 and prevent the pressure block 303 from sliding. 03. The offset causes detection error. The two ends of the two guide rods 302 are fixedly connected to the top plate 301 and the inner bottom wall of the mounting shell 2, respectively. The bottom end of the pressure block 303 is bonded with a silicone block 305. The bottom end of the silicone block 305 is bonded to the upper surface of the pad 7 to play a buffering role, avoid detection deviation caused by hard contact between the pressure block 303 and the pad 7, and improve wearing comfort. The two guide rods 302 are each fitted with a support spring 304. The two ends of the two support springs 304 are in contact with the lower surface of the top plate 301 and the upper surface of the corresponding guide plate 3031, respectively.

[0024] When construction workers wear safety helmets 1, their heads first come into contact with the pad 7, causing the pad 7 to move upwards until it is positioned in the perforation 1031 of the floating top pad 103. During the movement of the pad 7, the silicone block 305 applies an upward pushing force to the pressure block 303, causing the pressure block 303 to slide upwards along the guide rod 302, while simultaneously compressing the support spring 304. As the pressure block 303 moves upwards, its top comes into contact with the pressure sensor 4 and generates pressure. The pressure sensor 4 transmits the detected pressure signal to the control chip 201 in real time. At the same time, the infrared heat source sensor 5 on the pad 7 is close to the head and can accurately capture the heat source signal of the human body at 36°C and above, and also sends the signal to the control chip 201. After integrating these two signals, the control chip 201 encrypts and sends them to the signal receiving module of the monitoring and early warning system 8 through the wireless transmission module, providing key data support for subsequent status determination.

[0025] Please see Figure 2 - Figure 5As shown, a smoke hood 601 is embedded at the front edge of the cap shell 101. The smoke hood 601 has an arc-shaped structure that fits the contour of the front edge of the cap shell 101, and its opening faces the mouth and nose area of ​​the person, which facilitates efficient capture of smoke generated by smoking. A smoke control detection tube 6 is installed in the mounting shell 2. Both ends of the smoke control detection tube 6 pass through the cap liner 102 and the cap shell 101 in sequence to allow the flow of smoke. One end of the smoke control detection tube 6 is connected to the upper surface of the smoke hood 601, and a smoke sensor 602 is installed on the inner wall of the smoke control detection tube 6 at the mounting shell 2. The bottom end of the smoke sensor 602 extends out of the smoke control detection tube 6 and is connected to the control chip 201 through a wire to detect the concentration of smoke flowing in the smoke control detection tube 6 and transmit the detection signal to the control chip 201, thereby realizing the detection of illegal smoking behavior.

[0026] When construction workers smoke illegally at the construction site, the smoke is first collected by the smoke hood 601. The smoke then flows through the smoke detection tube 6. When the smoke passes through the smoke sensor 602, the smoke sensor 602 quickly detects the change in smoke concentration and transmits the detection data to the control chip 201 in real time. After preliminary processing of the data, the control chip 201 sends it to the signal receiving module of the monitoring and early warning system 8 via the wireless transmission module. After processing by the signal filtering unit, the signal receiving module transmits the valid smoke signal to the early warning judgment module. The early warning judgment module compares the smoke concentration with a preset safety threshold. If the threshold is exceeded, it is immediately judged as illegal smoking and triggers the corresponding early warning mechanism, thereby achieving rapid and accurate monitoring of illegal smoking at the construction site.

[0027] The working principle of this invention is as follows: First, managers can enter basic information such as the name, employee number, and work group of construction workers through the platform. At the same time, they can read the unique ID built into the safety helmet 1 and bind the personnel information to the safety helmet 1. During the binding process, the system automatically verifies the integrity and uniqueness of the information to ensure that each safety helmet 1 corresponds to a unique construction worker identity. After the binding is completed, the identity binding information is synchronously stored in the data storage module to provide an identity basis for subsequent monitoring and traceability. When construction workers wear safety helmet 1, their heads first come into contact with pad 7, causing pad 7 to move upwards until it is positioned in the perforation 1031 of the floating top pad 103. During the movement of pad 7, the silicone block 305 applies an upward pushing force to the pressure block 303, causing the pressure block 303 to slide upwards along the guide rod 302, while simultaneously compressing the support spring 304. As the pressure block 303 moves upwards, its top comes into contact with the pressure sensor 4 and generates pressure. The pressure sensor 4 transmits the detected pressure signal to the control chip 201 in real time. At the same time, the infrared heat source sensor 5 on pad 7 is close to the head and can accurately capture the heat source signal of the human body at 36°C or above, and also sends the signal to the control chip 201. The control chip 201 integrates these two signals and transmits them to the signal receiving module of the monitoring and early warning system 8 through a wireless transmission module with encryption. The signal receiving module performs noise reduction processing on the received signal through the signal filtering unit, eliminating invalid interference signals, and then transmits the valid signal to the early warning determination module. The early warning determination module determines that the safety helmet 1 is correctly worn according to a preset threshold and does not trigger an early warning. If a person is not wearing a safety helmet 1, the pressure sensor 4 cannot detect a valid pressure signal, and the infrared heat source sensor 5 cannot detect a human body heat source signal. The warning judgment module determines that the helmet is not being worn. If the helmet is not worn correctly, causing the pressure value detected by the pressure sensor 4 or the heat source signal detected by the infrared heat source sensor 5 to not meet the preset threshold, the warning judgment module determines that the helmet is not being worn correctly. Once the warning judgment module determines that the person is not wearing the mask or is wearing it improperly, it immediately sends a warning command to the mobile terminal push module. The mobile terminal push module automatically generates a warning message containing the warning type, the identity information of the person involved, and the time of the warning. This message is then pushed to the mobile terminal of the on-site safety officer in real time through an encrypted communication channel, ensuring that the safety officer can detect the hazard and go to the scene to handle it as soon as possible. After the safety officer has handled the situation, he enters the handling result into the system, and the handling record is simultaneously stored in the data storage module. Throughout the entire operation, the signal strength monitoring unit of the signal receiving module monitors the signal transmission status of each safety helmet 1 in real time. If the signal strength of a certain safety helmet 1 is continuously lower than the threshold, it promptly reports the abnormal device connection information to the monitoring and early warning system 8, which facilitates the management personnel to troubleshoot the fault. The data storage module continuously stores the identity binding information, the detection signals of each sensor, the early warning records and the handling records, forming a complete control data chain, which provides a reliable basis for subsequent safety inspections, hazard reviews and accident responsibility tracing.

[0028] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A construction worker safety monitoring and early warning system, comprising a monitoring and early warning system (8) and a safety helmet (1), characterized in that, The monitoring and early warning system (8) includes an identity binding module, a signal receiving module, an early warning determination module, a mobile terminal push module, and a data storage module. The identity binding module is used to bind the unique ID of the safety helmet (1) with the identity information of the construction personnel. The signal receiving module is used to receive various signals sent by the sensors in the safety helmet (1). The early warning determination module is used to analyze and process the received signals and determine that the safety helmet (1) is not worn correctly. The mobile terminal push module is used to push early warning information to the mobile phone of the on-site safety officer. The data storage module is used to store identity binding information, various detection signals, early warning records, and handling records. The safety helmet (1) consists of a helmet shell (101), a helmet liner (102), and a floating top pad (103). The floating top pad (103) has a perforation (1031). A pad (7) is provided below the floating top pad (103) at the perforation (1031). A mounting shell (2) is fixed on the lower surface of the helmet liner (102). The pad (7) and the mounting shell (2) are connected by a compression assembly (3). A control chip (201) is fixed to the inner bottom wall of the mounting shell (2) by screws. A wireless transmission module, an identity recognition module, and a power supply module are installed on the control chip (201). An infrared heat source sensor (5) and a pressure sensor (4) are respectively installed on the top plate (301) provided in the pad (7) and the compression assembly (3). The infrared heat source sensor (5) and the pressure sensor (4) are used to detect the wearing status and transmit the detection signal to the monitoring and early warning system (8).

2. The construction personnel safety monitoring and early warning system according to claim 1, characterized in that, The cap liner (102) is located inside the cap shell (101) and is bonded together. The floating top pad (103) is located below the cap liner (102) and is connected to the inside of the cap shell (101) via an elastic connector (1032). The gasket (7) matches the perforation (1031). The gasket (7) and the floating top pad (103) are made of the same material.

3. The construction personnel safety monitoring and early warning system according to claim 1, characterized in that, The extrusion assembly (3) includes a top plate (301), the outer wall of the top plate (301) is fixedly connected to the inner wall of the mounting shell (2), the pressure sensor (4) is installed on the lower surface of the top plate (301) by screws, and a pressure block (303) is provided below the pressure sensor (4). The pressure block (303) penetrates the bottom wall of the mounting shell (2) and is slidably connected to the contact part. Guide plates (3031) are hot-melt welded to both sides of the pressure block (303), and guide rods (302) penetrate through both guide plates (3031). The two ends of the two guide rods (302) are fixedly connected to the top plate (301) and the inner bottom wall of the mounting shell (2), respectively.

4. The construction personnel safety monitoring and early warning system according to claim 3, characterized in that, The bottom end of the pressure block (303) is bonded with a silicone block (305), and the bottom end of the silicone block (305) is bonded to the upper surface of the gasket (7). The two guide rods (302) are each fitted with a support spring (304), and the two ends of the two support springs (304) are in contact with the lower surface of the top plate (301) and the upper surface of the corresponding guide plate (3031), respectively.

5. A construction worker safety monitoring and early warning system according to claim 1, characterized in that, A smoke hood (601) is embedded at the front edge of the cap shell (101). A smoke control detection tube (6) is inserted through the mounting shell (2). Both ends of the smoke control detection tube (6) pass through the cap liner (102) and the cap shell (101) in sequence. One end of the smoke control detection tube (6) is connected to the upper surface of the smoke hood (601). A smoke sensor (602) is installed on the inner wall of the smoke control detection tube (6) at the mounting shell (2). The bottom end of the smoke sensor (602) passes through the smoke control detection tube (6) and is connected to the control chip (201) through a wire.

6. A construction worker safety monitoring and early warning system according to claim 1, characterized in that, The identity binding module inputs the basic information of construction personnel, such as name, work number, and work group, through the construction site management platform, and associates and binds this information with the unique ID built into the safety helmet (1). During the binding process, the system will automatically verify the integrity and uniqueness of the information to ensure that each safety helmet (1) corresponds to a unique construction personnel identity. At the same time, it supports two binding methods: batch import and single addition, which makes it convenient for managers to efficiently complete the identity binding operation according to actual needs, and provide accurate identity basic data for subsequent safety monitoring and responsibility tracing.

7. A construction worker safety monitoring and early warning system according to claim 1, characterized in that, The signal receiving module is equipped with a signal filtering unit and a signal strength monitoring unit. The signal filtering unit can perform noise reduction processing on the received original signal, eliminate invalid signals caused by environmental interference factors, and then transmit the processed valid signal to the early warning judgment module. The signal strength monitoring unit can automatically report the abnormal device connection information to the monitoring and early warning system when the signal strength of a certain safety helmet (1) is continuously lower than the threshold, so that the management personnel can check the communication status of the safety helmet (1) in a timely manner.

8. A construction worker safety monitoring and early warning system according to claim 1, characterized in that, The pre-set pressure threshold of the warning judgment module is 5-10N and the infrared heat source threshold is 36℃. When the pressure value detected by the pressure sensor (4) is lower than 5N for 5 seconds and the infrared heat source sensor (5) does not detect a heat source signal of 36℃ or above, the system determines that the safety helmet (1) is not being worn. If the pressure value is within the range of 5-10N but the infrared heat source sensor (5) does not detect an effective heat source signal, or if the pressure value is higher than 10N but the heat source signal fluctuates abnormally, the system determines that the wearing is not in accordance with regulations. The warning and judgment module will also combine the smoke sensor (602) data transmitted by the signal receiving module, and judge it as illegal smoking when the smoke concentration exceeds the preset safety threshold.

9. A construction worker safety monitoring and early warning system according to claim 1, characterized in that, The mobile push module can automatically generate warning information including the warning type, the identity information of the personnel involved, and the time of the warning based on the judgment result of the warning judgment module, and push it to the mobile terminal of the on-site safety officer in real time through an encrypted communication channel to ensure that the safety officer notices it as soon as possible.

10. A construction worker safety monitoring and early warning system according to claim 1, characterized in that, The data storage module can store the identity binding information of construction personnel, the pressure signal, infrared heat source signal, smoke concentration data collected in real time by the safety helmet (1) sensor, as well as various early warning records and safety officer handling records generated by the system in a long-term and secure manner.

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