Intelligent safety helmet terminal and intelligent safety helmet system

Abstract

This invention discloses an intelligent safety helmet terminal and an intelligent safety helmet system. The intelligent safety helmet terminal has a functional compartment inside the helmet body to integrate the battery and the embedded main control board. The front of the helmet body has a mounting slot to fix the video acquisition module and the lighting module. The sensor control module is configured to collect environmental data and motion status data of the workers and trigger an alarm when an anomaly is detected. The video acquisition module is configured to collect video data from the construction site. The communication and positioning module is configured to transmit the video data, audio data, environmental data, and motion status data to a control center platform in real time. Through the collaborative work of the intelligent safety helmet terminal integrating multiple sensors and the control center platform, real-time visual management of the underground working environment can be achieved, effectively solving the problem of "invisible and unmanageable" underground spaces.

Description

Technical Field

[0001] This invention relates to the field of underground engineering construction safety monitoring technology, specifically to an intelligent safety helmet terminal and an intelligent safety helmet system. Background Technology

[0002] Trenchless repair of urban underground stormwater and sewage pipelines has gradually become the mainstream repair method for urban pipeline network renovation. Trenchless repair work requires entering manholes and pipelines for operation. Manholes and pipelines are confined spaces, presenting significant challenges such as narrow working environments, high concentrations of toxic and harmful gases, deep burial of pipes, and poor communication and monitoring conditions. Furthermore, the operation requires sealing and diversion measures to guide upstream water to downstream diversion wells. Upstream water flow is affected by weather, upstream pumping station operation, and other factors, posing a risk of sudden surges in water volume. Therefore, real-time monitoring of upstream water levels and rapid transmission of early warning information to monitoring and operation personnel are essential.

[0003] Traditional safety helmets only provide basic physical protection and lack capabilities such as voice communication, video transmission, environmental perception, and water level-linked early warning. In confined spaces such as underground pipelines, managers face pain points such as "invisibility, inability to manage, slow early warning, and difficulty in tracing," which cannot meet the needs of modern construction site safety, efficiency, and visual management. There is an urgent need for an intelligent monitoring solution that integrates protection, perception, alarm, communication, and positioning, and can be linked to water level monitoring. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the present invention aims to provide an intelligent safety helmet terminal and an intelligent safety helmet system, which are intended to solve the problems of the traditional safety helmet having limited functions, lack of monitoring for underground space operations, and insufficient emergency response capabilities.

[0005] This invention is achieved using the following technical solution:

[0006] A smart safety helmet terminal includes a helmet body, an embedded main control board, and a video acquisition module, a sensor control module, a voice interaction module, and a communication positioning module connected to the embedded main control board. The helmet body has a functional compartment for integrating the embedded main control board, and the video acquisition module is fixed to the front of the helmet body. The sensor control module is configured to collect environmental data and motion status data of the worker and trigger an alarm when an anomaly is detected. The video acquisition module is configured to collect video data from the construction site. The voice interaction module is configured to collect audio data from the construction site and receive audio data from a control center platform. The communication positioning module is configured to transmit the video data, audio data, environmental data, and motion status data to the control center platform in real time.

[0007] Preferably, the device also includes a battery and a lighting module. The front of the cap is provided with a mounting slot to fix the video acquisition module and the lighting module. The video acquisition module includes a high-definition camera, and the lighting module includes a dimmable LED fill light. The dimmable LED fill light is configured to support infrared night vision function for work lighting and video shooting in low-light environments.

[0008] Preferably, the sensing and control module integrates a gyroscope, an accelerometer, and a gas detector. The sensing and control module is further configured to implement hat removal alarm and fall alarm based on the data from the gyroscope and the accelerometer, and to implement harmful gas warning based on the data from the gas detector.

[0009] Preferably, the communication positioning module integrates GPS and Beidou dual positioning chips and supports ultra-wideband high-precision positioning. The communication positioning module is further configured to acquire the location information of the operator in real time.

[0010] Preferably, the functional compartment also integrates a one-button emergency call button, which is configured to trigger the embedded main control board to issue a high-priority emergency alarm signal when pressed, and the smart safety helmet terminal and / or control center platform will issue an alarm based on the emergency alarm signal.

[0011] A smart safety helmet system includes at least one smart safety helmet terminal as described above, configured to collect on-site video data, environmental data, and status data of workers, and provide voice interaction, lighting, and alarm prompts; a water level monitoring terminal, located at the diversion well, configured to monitor the upstream water level and generate water level alarm information when the water level reaches a preset height; a signal base station, located next to the work well, configured to transmit wireless signals between the smart safety helmet terminal, the water level monitoring terminal, and the control center platform; and a control center platform, configured to receive the on-site video data, the environmental data, the status data, and the water level alarm information, perform real-time monitoring and scheduling, and synchronously send alarm commands to the smart safety helmet terminal.

[0012] Preferably, the communication positioning module integrates a Global Positioning System and a BeiDou dual positioning chip, and supports ultra-wideband high-precision positioning; the communication positioning module is further configured to acquire the location information of the operator in real time; the control center platform has built-in map information; when the location information of the operator exceeds the preset location range, the control center platform issues an out-of-bounds alarm.

[0013] Preferably, the water level monitoring terminal includes: a float, which is installed in the diversion well according to the well chamber burial depth and well chamber height, and has an adjustable counterweight to set the trigger water level; and a signal receiver, configured to trigger the water level alarm information when the water level rises to the same height as the float and the signal receiver.

[0014] Preferably, the signal base station includes: a signal amplifier configured to enhance wireless communication signals; a solar panel configured to collect light energy and convert it into electrical energy to power the signal base station; and a monitoring camera configured to collect environmental video data around the working well.

[0015] Preferably, the control center platform is further configured to: upon receiving the water level alarm information or harmful gas warning, pop up a warning on the monitoring interface and synchronously transmit the corresponding alarm command to the smart safety helmet terminal and the associated mobile terminal.

[0016] Compared to existing technologies, the advantages of this invention are as follows: Firstly, by integrating multiple sensors into a smart safety helmet terminal and coordinating with a control center platform, digital and visual monitoring of construction sites is achieved, solving the pain points of communication difficulties and lack of visibility in deeply buried wells, significantly improving management efficiency and reducing management costs. Secondly, through the integrated application of gyroscopes, accelerometers, and gas detectors, the system can automatically warn of helmet removal, falls, and harmful gases, transforming passive protection into proactive safety assurance. Furthermore, by linking the smart safety helmet terminal with a water level monitoring terminal, traditional passive protection can be transformed into proactive safety warnings, effectively protecting the lives of personnel working in confined spaces. The system supports data storage and traceability throughout the entire operation process, providing reliable data support for safety management decisions and helping enterprises fulfill their primary responsibility for safe production. Attached Figure Description

[0017] Figures 1-6 This is a six-view diagram of a smart safety helmet terminal according to an embodiment of the present invention; Figure 7 This is a structural block diagram of a smart safety helmet terminal according to an embodiment of the present invention; Figure 8 This is a structural block diagram of an embodiment of the intelligent safety helmet system of the present invention. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0021] refer to Figures 1 to 7 According to one embodiment of the present invention, the intelligent safety helmet terminal 100 may include a helmet body 110, an embedded main control board 120, a battery 170, a lighting module 180, and a video acquisition module 130, a sensor control module 140, a voice interaction module 150, and a communication positioning module 160 connected to the embedded main control board 120. Existing technologies suffer from limitations such as scattered external devices, cumbersome wearing, and the risk of scraping in narrow pipes, thus affecting operational safety. The intelligent safety helmet terminal 100 of the present invention overcomes this limitation and achieves an integrated intelligent wearable experience by highly integrating the above-mentioned functional modules into a specific area of ​​the helmet body 110. The main body of the helmet body 110 may be made of high-hardness engineering plastic material, for example, ABS high-hardness engineering plastic, but the present invention is not limited thereto. The design of the helmet body 110 may fully comply with relevant impact resistance and puncture resistance standards, for example, it may comply with the requirements of national standard GB 2811-2019, but the present invention is not limited thereto. Reference Figure 1According to an embodiment of the present invention, the helmet body 110, by optimizing the helmet shape structure and adding top anti-collision ribs 113, further improves impact resistance without increasing the overall weight. In this embodiment, a functional compartment 111 is provided on the inner top of the helmet body 110. The functional compartment 111 can be used to integrate the battery 170, the embedded main control board 120, and the communication positioning module 160. The functional compartment 111 can adopt a streamlined arc surface design to adapt to the shape of the wearer's head. A mounting groove 112 can be provided at the front of the helmet body 110. The mounting groove 112 can be used to fix the video acquisition module 130 and the lighting module 180. Through the reasonable layout and modular design of the functional compartment 111 and the mounting groove 112, all intelligent components can be integrated into one unit. This not only does not affect the protective performance of the helmet itself, but also truly achieves both safety and intelligence. In addition, a switch button 114 is provided on the lower edge of the cap body 110 that is easily accessible. When the switch button 114 is pressed, the embedded main control board 120 is powered on, and the sensor control module 140 and the communication positioning module 160 are turned on.

[0022] In some embodiments, the embedded main control board 120 serves as the core control unit of the entire smart helmet terminal 100, integrating a processor and a data storage unit. The embedded main control board 120 can process video data acquired by the video acquisition module 130, environmental data and motion status data acquired by the sensor control module 140, and can also implement logic control for functions such as voice intercom and alarm triggering. In some embodiments, the embedded main control board 120 can employ at least one microcontroller or system-on-a-chip architecture to minimize overall power consumption while ensuring audio / video encoding / decoding and sensor data fusion computing performance, thereby extending the device's battery life. The embedded main control board 120 may also include a power management integrated circuit to accurately monitor the charging and discharging process of the battery 170 and provide stable operating voltages for each peripheral module.

[0023] refer to Figure 1 and Figure 2In some embodiments, the video acquisition module 130 can be configured to acquire video data from the construction site. The video acquisition module 130 may include a high-definition camera 131. For example, the high-definition camera 131 may be a wide-angle high-definition camera with 1080P resolution, but the present invention is not limited thereto. Existing technologies suffer from limitations such as dim lighting and narrow field of view in underground pipelines, making it difficult to obtain clear and comprehensive images of the site. According to embodiments of the present invention, the video acquisition module 130, combined with the lighting module 180, overcomes this limitation and achieves all-weather, blind-spot-free video monitoring. A camera start button 115 is provided on the easily accessible lower edge of the cap 110; when the camera start button 115 is pressed, the video acquisition module 130 starts working. The lighting module 180 may include a dimmable LED fill light 181, and the LED light switch button 116 of the LED fill light 181 is located on the lower edge of the cap 110. The dimmable LED fill light 181 can be configured to support infrared night vision functionality for work lighting and video recording in low-light environments. The high-definition camera 131 supports real-time video transmission, high-definition photography, and one-click evidence collection. Management personnel can monitor the construction progress in real time from the backend, enabling remote on-site monitoring, which is particularly suitable for safety management in complex working environments such as tunnels, elevated structures, and underground pipelines. The dimmable LED supplementary light 181 automatically adjusts its brightness based on the light intensity collected by the ambient light sensor, or can be manually adjusted via user voice or button commands, thus solving the problem of working illumination in low-light environments such as at night or in tunnels. In extremely dark scenarios requiring concealed monitoring or reduced power consumption, the dimmable LED supplementary light can switch to infrared emission mode, working in conjunction with the infrared sensor of the high-definition camera to achieve clear infrared night vision imaging.

[0024] In some embodiments, the sensing control module 140 can be configured to collect environmental data and motion state data of the worker, and trigger an alarm when an anomaly is detected. The sensing control module 140 can integrate a gyroscope, an accelerometer, and a gas detector 143. Existing technologies have limitations in actively sensing abnormal worker postures and sudden changes in toxic gas concentrations in the environment, often only allowing for passive rescue after an accident occurs. The sensing control module 140 according to embodiments of the present invention overcomes this limitation and achieves active protection through multi-sensor collaborative work and edge computing algorithms. Specifically, the sensing control module 140 can be further configured to implement helmet removal alarms and fall alarms based on data from the gyroscope and the accelerometer. For example, when the accelerometer detects a drastic change in gravitational acceleration within a short period, and the gyroscope detects an abnormal tilt in the posture angle and maintains this state for more than a preset time threshold, the embedded main control board 120 can determine that the worker has fallen and immediately trigger an alarm. Similarly, by analyzing acceleration data, the system can determine whether the safety helmet has been improperly removed, thereby implementing a helmet removal alarm. Furthermore, the sensor control module 140 can provide early warning of harmful gases based on data from the gas detector 143. In the construction of urban underground stormwater and sewage pipes, harmful gases such as hydrogen sulfide, carbon monoxide, and methane are often present. The gas detector 143 can monitor the concentration of these gases in real time. When an excessive level of toxic gas is detected, a high-frequency flashing audible and visual alarm can be triggered via the alarm indicator light 190 on the back of the safety helmet. Simultaneously, the warning information and current concentration data are transmitted to the control center platform 400 via the communication and positioning module 160.

[0025] In some embodiments, the voice interaction module 150 can integrate a noise-canceling microphone and a high-fidelity speaker. Existing technologies suffer from limitations such as high mechanical noise and severe echo in underground construction environments, leading to unclear intercom audio. The voice interaction module 150 of this embodiment overcomes this limitation and achieves clear and reliable voice communication by introducing hardware active noise cancellation circuitry and software audio enhancement algorithms. The voice interaction module 150 supports one-button voice intercom and SOS emergency call functions. When workers encounter an emergency and need to call for help, they can press the SOS button 117, located on the easily accessible lower edge of the cap 110. The control center will then receive the highest priority emergency alarm notification and immediately direct rescue measures. When workers encounter a matter that needs to be reported, they can press the intercom button 118, located on the lower edge of the cap 110, to communicate with the control center platform 400. The intercom button 118 triggers the voice interaction module 150. This one-button voice interaction design greatly improves the efficiency of emergency response.

[0026] In some embodiments, the voice interaction module 150 may also support local voice prompts, such as playing preset voice announcements to the wearer through a high-fidelity speaker when the battery is low, the network is disconnected, or a slight environmental anomaly is detected, to remind them to pay attention to safety.

[0027] In some embodiments, the communication positioning module 160 can be configured to transmit the video data, environmental data, and motion status data to the control center platform 400 in real time. The communication positioning module 160 can integrate a Global Positioning System (GPS) and BeiDou dual-positioning chip, and support ultra-wideband high-precision positioning. Existing technologies suffer from limitations such as extremely weak satellite signals and severe multipath effects in underground spaces, leading to inaccurate personnel positioning or even loss of personnel. The communication positioning module 160 according to embodiments of the present invention overcomes this limitation and achieves accurate personnel tracking across all scenarios by integrating multiple communication and positioning technologies. In some embodiments, the communication positioning module 160 can integrate at least one wireless communication method, such as 4G, 5G, WiFi, or Bluetooth, to adapt to different network coverage environments. On the ground or in shallow spaces, 4G / 5G networks can be preferentially used for broadband data transmission; in deep underground pipelines, it can automatically switch to WiFi or a local area network based on a specific frequency band. The communication positioning module 160 can be further configured to acquire the location information of the workers in real time and implement electronic fence and boundary crossing alarm functions. By combining GPS and BeiDou dual-positioning chips, high-precision absolute coordinates can be provided in open areas. In underground pipelines where satellite signals are blocked, ultra-wideband (UWB) technology can be used to measure distances with anchor points deployed within the pipeline, achieving centimeter-level relative positioning. The control center platform has built-in map information; when workers exceed the preset safe working area or accidentally enter a dangerous area, the system can automatically issue a boundary crossing alarm. This is particularly suitable for complex on-site management of multiple work areas and personnel in rail transit.

[0028] In some embodiments, the battery 170 can be a high-capacity removable, rechargeable lithium battery. For example, the capacity of the battery 170 can be between approximately 5000mAh and 10000mAh, supporting continuous operation for more than 8 hours on a single charge, but the present invention is not limited thereto. Existing technologies suffer from limitations such as short battery life and slow charging of smart wearable devices, with frequent battery replacements severely impacting construction progress. The battery 170 according to embodiments of the present invention overcomes this limitation and achieves rapid recharging by employing high-energy-density cells and equipped with a fast-charging interface. For example, it can be equipped with a Type-C fast-charging interface, supporting high-power input, to quickly restore power during fragmented time such as workers' lunch breaks, fully meeting the all-day work needs of frontline workers. Furthermore, the battery 170 can adopt an explosion-proof and waterproof encapsulation design to adapt to the harsh environment of underground pipelines, which are humid and flammable.

[0029] This invention also provides an intelligent safety helmet system, addressing the numerous limitations of existing technologies in urban underground pipeline repair operations. Due to the shallow or extremely deep burial depth of the pipelines and the confined working space, it is often difficult for monitoring personnel to effectively observe the real-time situation underground once workers enter the confined space. Furthermore, workers must wear protective clothing and respirators into the confined space, making it difficult to simultaneously achieve auxiliary functions such as lighting, communication, distress signals, and video recording during construction, further increasing the difficulty of supervision. In addition, upstream water flow is affected by factors such as weather and upstream pumping station operations, posing a risk of sudden surges in water volume; existing technologies lack real-time monitoring and early warning mechanisms for upstream water levels. The intelligent safety helmet system according to embodiments of this invention overcomes these limitations by integrating IoT devices, gateway nodes, and cloud server configurations, enabling safe, efficient, and visualized management of underground confined space operations.

[0030] In some embodiments, such as Figure 8 As shown, the intelligent safety helmet system may include an intelligent safety helmet terminal 100, a water level monitoring terminal 200, a signal base station 300, and a control center platform 400. The intelligent safety helmet terminal 100 can be configured to collect on-site video data, environmental data, and status data from workers, and can provide voice interaction, lighting, and alarm prompts. The water level monitoring terminal 200 can be located at the diversion well and can be configured to monitor the upstream water level and generate a water level alarm when the water level reaches a preset height. The signal base station 300 can be located near the working well and can be configured to transmit wireless signals between the intelligent safety helmet terminal 100, the water level monitoring terminal 200, and the control center platform 400. The control center platform 400 can be configured to receive the on-site video data, the environmental data, the status data, and the water level alarm information, perform real-time monitoring and scheduling, and can synchronously send alarm commands to the intelligent safety helmet terminal 100. Through the above system architecture, this invention can transmit on-site signals and underground pipeline operation status to the central control system in real time, thereby enabling real-time monitoring of the on-site situation and transforming passive protection into proactive safety. The system includes a smart safety helmet terminal 100 as described in the above embodiment and a control center platform 400. The control center platform 400 is communicatively connected to the smart safety helmet terminal 100 and is configured to receive video data and sensor data collected by the smart safety helmet terminal 100, and convert the video data into image display.

[0031] In some embodiments, the water level monitoring terminal 200 may include a float and a signal receiver. In the prior art, upstream water flow is susceptible to surges due to factors such as weather, and effective automatic monitoring methods are lacking. The water level monitoring terminal 200 according to embodiments of this disclosure overcomes this limitation by combining physical buoyancy with electronic signal conversion.

[0032] In some embodiments, the float can be positioned within the diversion well according to the well chamber's burial depth and height, and rises with the water level. During the construction preparation phase, workers can lower the float to a predetermined height within the well chamber in advance. The float can be made of at least one corrosion-resistant, high-buoyancy material to adapt to the harsh environment of underground sewage pipes.

[0033] In some embodiments, the signal receiver can be configured to trigger a water level alarm when the water level rises to the same height as the float, and upload the water level alarm to the control center platform 400. For example, when a water level monitoring terminal 200 deployed upstream of a pipeline detects an abnormal rise in water level, the control center platform 400 can automatically send an evacuation command to all smart safety helmet terminals 100 operating downstream. Upon receiving the command, the smart safety helmet terminal 100 can play an evacuation message repeatedly through the voice interaction module 150 and emit a flashing signal of a specific frequency through the lighting module 180 to guide workers to quickly evacuate to a safe area.

[0034] Optionally, the signal receiver may include at least one magnetic switch or at least one photoelectric sensing element. When the float rises with the water level to the trigger position, it closes or opens the corresponding circuit, thereby generating a digital alarm signal. This alarm signal can be transmitted to the signal base station 300 or directly to the control center platform 400 via at least one low-power wide-area network protocol.

[0035] In some embodiments, the signal base station 300 may include a signal amplifier 310, a solar panel 320, and a surveillance camera 330. Due to the extremely deep burial of the manhole, conventional communication signals are difficult to cover. The signal base station 300 according to embodiments of this disclosure overcomes this limitation through field relay and signal enhancement.

[0036] In some embodiments, the signal amplifier 310 can be configured to enhance wireless communication signals. The signal amplifier 310 enhances the wireless communication signals. The signal amplifier 310 may include at least one radio frequency transceiver front end and at least one high-gain antenna, capable of receiving weak signals from the downhole smart helmet terminal 100 and the water level monitoring terminal 200, amplifying them, and forwarding them to a public network or private network, while also transmitting instructions from the control center to the downhole. The signal amplifier 310 of the signal base station 300 may employ multiple-input multiple-output (MIMO) antenna technology. The signal base station 300 can be deployed on a tripod at the wellhead, and its antenna can extend downwards to a certain depth inside the well, thereby overcoming the shielding effect of the wellhead on electromagnetic waves. The signal base station 300 can also act as a local gateway, capable of simultaneously connecting multiple smart helmet terminals 100 and water level monitoring terminals 200. In some embodiments, the signal base station 300 may have edge storage functionality, capable of caching video streams uploaded from the downhole and performing batch uploads during network idle periods.

[0037] In some embodiments, the solar panel 320 can be configured to collect light energy and convert it into electrical energy to power the signal base station 300, and to support external power supply when the battery is low. During the day when there is sufficient sunlight, the solar panel 320 can simultaneously power the signal base station 300 and charge the built-in battery. At night or on cloudy days, the system can automatically switch to battery power mode. If the battery level also drops to a critical value, the signal base station 300 can automatically shut down the power-consuming surveillance camera 330, retaining only the core signal forwarding function to extend the system's battery life. Optionally, the signal base station 300 may have an external power interface on its casing, enabling connection to a mobile power vehicle or portable generator.

[0038] In some embodiments, the monitoring camera 330 can be configured to collect environmental video data around the working well and transmit it to the control center platform 400. This allows back-end management personnel to not only see a first-person view from downhole but also to grasp the macroscopic environment at the wellhead, preventing unauthorized personnel from approaching the work area and providing comprehensive safety assurance.

[0039] In some embodiments, the control center platform 400 can be further configured to store all received data in real time to achieve traceability of the entire operation process, and when it receives the water level alarm information, harmful gas warning, hat removal alarm, fall alarm or emergency call, it displays it on the monitoring screen and synchronously transmits the corresponding alarm instructions to the smart safety helmet terminal 100 and the associated mobile terminal.

[0040] In some embodiments, the control center platform 400 may include a data storage module and an alarm synchronization module. The data storage module may employ at least one distributed database technology to persistently store massive amounts of video streams and sensor time-series data, providing complete evidence for safety accident investigations and liability determination. The alarm synchronization module may be based on at least one message queue mechanism to ensure that alarm information is not lost or delayed under high concurrency conditions. When the control center receives an alarm, a prominent red warning box will pop up on the smart platform computer screen, accompanied by an alarm sound, and the alarm information will be pushed to the mobile APP of on-site monitoring personnel, achieving multi-party synchronous monitoring.

[0041] The working principle of this invention will be explained below.

[0042] After the worker puts on the safety helmet, they can press the switch button 114 on the helmet to initiate system initialization. After turning on the camera start button 115 on the helmet, the high-definition camera 131 of the video acquisition module 130 begins recording. In some embodiments, the dimmable LED supplementary light 181 of the lighting module 180 can support infrared night vision for work lighting and video recording in low-light environments. Subsequently, the communication and positioning module 160 of the smart safety helmet terminal 100 transmits the video data, environmental data, and motion status data to the control center platform 400 in real time via the signal base station 300. The water level monitoring terminal 200, located at the diversion well, monitors the upstream water level and generates a water level alarm when the water level reaches a preset height. Wireless signal transmission occurs between the smart safety helmet terminal 100, the water level monitoring terminal 200, and the control center platform 400 via the signal base station 300 located near the work well. The control center platform 400 receives the on-site video data, environmental data, status data, and water level alarm information, performs real-time monitoring and scheduling, and synchronously sends alarm commands to the smart safety helmet terminal 100. During the data reception and display step, the backend server of the control center platform 400 can decode, store, and analyze the received data stream, and push the results to the control center monitoring screen 410.

[0043] In some embodiments, the gas detector 143 of the sensing control module 140 can employ an electrochemical, catalytic combustion, or infrared absorption sensor. The gas detector 143 can be configured to simultaneously monitor multiple characteristic gases, including but not limited to the concentrations of methane (CH4), hydrogen sulfide (H2S), carbon monoxide (CO), and oxygen (O2). The sensing control module 140 can incorporate a temperature compensation algorithm to eliminate the impact of temperature fluctuations within the underground pipeline on the accuracy of gas concentration measurements. When the gas detector 143 detects that the oxygen concentration is below a safe threshold (e.g., 19.5%) or the concentration of harmful gases exceeds a preset alarm value, the embedded main control board 120 can immediately control the lighting module 180 to flash a red alarm and force the full-duplex intercom mode of the voice interaction module 150 to be activated, so that the monitoring center can intervene and command immediately.

[0044] The gyroscope and accelerometer in the sensing and control module 140 can form a six-axis inertial measurement unit (IMU). In some embodiments, the embedded main control board 120 can accurately sense the movement trajectory of the worker by integrating and calculating the attitude of the IMU data. For example, when a worker is detected to have fallen from a height or experienced a severe impact, the system can automatically lock the current video segment and mark it as an emergency. The helmet removal alarm function can effectively prevent workers from removing their helmets in dangerous areas by fusing the IMU data with a pressure sensor or infrared proximity sensor located inside the helmet liner.

[0045] The ultra-wideband (UWB) positioning function of the communication positioning module 160 has significant advantages in underground pipeline construction. In some embodiments, a UWB base station can be deployed at regular intervals (e.g., 50 to 100 meters) within the pipeline. The communication positioning module 160 achieves centimeter-level positioning accuracy by measuring the flight time with these base stations. This high-precision positioning enables the control center platform 400 to build a digital twin model of the construction site, displaying the precise location of each worker in real time. The electronic fence function can be dynamically adjusted according to the construction progress. For example, areas undergoing high-pressure cleaning or mechanical excavation can be designated as temporary restricted areas. If unauthorized personnel enter, both the smart safety helmet terminal 100 and the control center platform 400 will simultaneously issue a strong boundary crossing alarm. Alternatively, the control center platform 400 can have built-in map information; when the location information of the workers exceeds a preset location range, the control center platform 400 will issue a boundary crossing alarm.

[0046] During the process of receiving and displaying data by the control center platform 400, the control center monitoring screen 410 can support multi-screen split display and 3D map linkage. In some embodiments, when a smart safety helmet terminal 100 triggers an alarm, the control center platform 400 can automatically display the real-time video of the terminal and highlight its location on the 3D map, while automatically retrieving the person's movement trajectory and environmental data curves for the past hour, providing detailed data support for emergency rescue.

[0047] The intelligent safety helmet system described in this embodiment of the invention can also be applied to various specific work scenarios. For example, in a routine inspection of underground pipelines, workers can use the high-definition camera 131 to photograph defects in the pipe wall and, combined with the precise coordinates provided by the communication positioning module 160, automatically generate an inspection report with a geographic location tag. In an emergency repair scenario, remote experts can observe a first-person view of the site through the control center platform 400 and provide real-time technical guidance to on-site workers through the voice interaction module 150, greatly shortening the fault handling time.

[0048] In some embodiments, the smart safety helmet terminal 100 can also integrate a near-field communication (NFC) module for worker attendance management and equipment inspection. Before starting work each day, workers simply scan their workstation nameplate with their safety helmet, and the system automatically records their attendance information and checks whether the helmet's sensors are functioning properly. If the system detects that the battery 170 is low on power or the gas detector 143 is not calibrated, it can prevent the worker from entering the confined space, thereby eliminating safety hazards at the source.

[0049] In summary, the intelligent safety helmet terminal and system provided in this invention, through a highly integrated hardware architecture, multimodal sensor fusion, high-precision positioning technology, and a cloud-edge collaborative control center platform, construct a comprehensive and three-dimensional safety assurance system for underground operations. This system not only monitors the working environment and personnel status in real time, enabling automatic early warning and rapid response to abnormal situations, but also improves the precision of construction management through digital means, effectively reducing the safety risks of underground confined space operations, and possessing significant social and economic benefits. In future implementations, this system can be further integrated with augmented reality (AR) technology to directly project as-built drawings of pipelines or underground pipeline distribution maps into the workers' field of vision, achieving more intuitive construction assistance.

[0050] The sensing and control module 140 of this invention can collect environmental data and motion state data. The embedded main control board 120 of this invention can receive the environmental data and motion state data collected by the sensing and control module 140, and trigger an alarm when the data is abnormal according to preset logic control rules. For example, when abnormal motion state or adverse environmental data is detected, the smart safety helmet terminal 100 of this invention can immediately send an alarm to the control center platform 400 and surrounding personnel, thereby achieving active protection.

[0051] The communication and positioning module 160 of this invention can acquire location information and implement electronic fence and boundary crossing alarm functions. The communication and positioning module 160 can be equipped with GPS and Beidou dual positioning chips, and in some scenarios, it can also support UWB high-precision positioning, enabling real-time acquisition of accurate location information of workers. The control center platform 400 of this invention can set up electronic fences based on this location information. When workers exceed the preset safe working area, the control center platform 400 can automatically trigger a boundary crossing alarm, achieving precise personnel scheduling and safety management of complex sites.

[0052] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A smart safety helmet terminal, characterized in that, The device includes a hat body, an embedded main control board, and a video acquisition module, a sensor control module, a voice interaction module, and a communication positioning module connected to the embedded main control board; the hat body has a functional compartment to integrate the embedded main control board, and the video acquisition module is fixed at the front of the hat body. The sensor control module is configured to collect environmental data and motion status data of the workers and trigger an alarm when an anomaly is detected; the video acquisition module is configured to collect video data of the construction site; the voice interaction module is configured to collect audio data of the construction site and receive audio data from the control center platform. The communication positioning module is configured to transmit the video data, audio data, environmental data, and motion status data to the control center platform in real time.

2. The intelligent safety helmet terminal as described in claim 1, characterized in that, It also includes a battery and a lighting module. The front of the cap is provided with a mounting slot to fix the video acquisition module and the lighting module. The video acquisition module includes a high-definition camera, and the lighting module includes a dimmable LED fill light. The dimmable LED fill light is configured to support infrared night vision function for work lighting and video shooting in low light environments.

3. The intelligent safety helmet terminal as described in claim 1, characterized in that, The sensing and control module integrates a gyroscope, an accelerometer, and a gas detector. The sensing and control module is further configured to implement hat removal alarm and fall alarm based on the data from the gyroscope and the accelerometer, and to implement harmful gas warning based on the data from the gas detector.

4. The intelligent safety helmet terminal as described in claim 1, characterized in that, The communication and positioning module integrates GPS and Beidou dual positioning chips and supports ultra-wideband high-precision positioning. The communication and positioning module is further configured to acquire the location information of the operator in real time.

5. The intelligent safety helmet terminal as described in claim 1, characterized in that, The functional compartment also integrates a one-button emergency call button. When the one-button emergency call button is pressed, it triggers the embedded main control board to issue a high-priority emergency alarm signal, and the smart safety helmet terminal and / or control center platform will issue an alarm based on the emergency alarm signal.

6. A smart safety helmet system, comprising at least one smart safety helmet terminal as described in any one of claims 1-5, wherein the smart safety helmet terminal is configured to collect on-site video data, environmental data and status data of the worker, and to provide voice interaction, lighting and alarm prompts; The water level monitoring terminal is set at the diversion well and is configured to monitor the upstream water level and generate a water level alarm message when the water level reaches a preset height. The signal base station, located next to the working well, is configured to transmit wireless signals between the smart safety helmet terminal, the water level monitoring terminal, and the control center platform. as well as The control center platform is configured to receive the on-site video data, the environmental data, the status data, and the water level alarm information, perform real-time monitoring and scheduling, and synchronously send alarm commands to the smart safety helmet terminal.

7. The intelligent safety helmet system as described in claim 6, characterized in that, The communication and positioning module integrates a global positioning system and a Beidou dual positioning chip, and supports ultra-wideband high-precision positioning; the communication and positioning module is further configured to acquire the location information of the operator in real time; the control center platform has built-in map information; when the location information of the operator exceeds the preset location range, the control center platform issues an out-of-bounds alarm.

8. The intelligent safety helmet system as described in claim 6, characterized in that, The water level monitoring terminal includes: a float, which is installed in the diversion well according to the well chamber burial depth and well chamber height, and has an adjustable counterweight to set the trigger water level; and a signal receiver, which is configured to trigger the water level alarm information when the water level rises to the same height as the float and the signal receiver.

9. The intelligent safety helmet system as described in claim 6, characterized in that, The signal base station includes: A signal amplifier, configured to enhance wireless communication signals; Solar panels are configured to collect solar energy and convert it into electrical energy to power the signal base station; and The surveillance camera is configured to collect environmental video data around the working well.

10. The intelligent safety helmet system as described in claim 6, characterized in that, The control center platform is further configured to: upon receiving the water level alarm information or harmful gas warning, pop up a warning on the monitoring interface and simultaneously transmit the corresponding alarm command to the smart safety helmet terminal and the associated mobile terminal.

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