Tunnel construction emergency early warning system

Abstract

The utility model relates to the field of tunnel construction emergency, and discloses a tunnel construction emergency early warning system. According to the invention, through integration of an informatization technology and a mechanical device, the emergency response capability of a construction scene is significantly improved. According to the system, a multi-module linkage mechanism is adopted, the abnormal state in the hole can be sensed in real time, early warning can be triggered synchronously, and the problems of delay and information transmission errors existing in traditional manual early warning are effectively solved. When a sudden dangerous case occurs, the wireless communication and intelligent control module can quickly cover a hole opening, the interior of the hole and an adjacent tunnel with a signal, and it is ensured that an operator receives an evacuation instruction at the first time through multi-dimensional warning means such as sound and light, voice and traffic signals. Meanwhile, due to intervention of the fixing support and automatic equipment, the posture of the construction trolley can be stabilized, the safety risk of manual operation is avoided, and the probability of secondary disasters caused by instability of the equipment is reduced fundamentally.

Description

Technical Field

[0001] This application belongs to the field of tunnel construction emergency technology, specifically a tunnel construction emergency early warning system. Background Technology

[0002] Tunnel engineering is an underground construction project with many uncertainties, especially in areas with complex geological conditions. During tunnel construction, various geological conditions may be encountered, such as mudslides, water inrushes, karst caves, faults, interlayers, soft soil, bias pressure, and quicksand. Due to limitations in the preliminary geological survey data, it is often impossible to accurately determine the geological conditions of all surrounding rocks in each construction section. This creates great difficulties and challenges for the construction process, and unexpected accidents such as roof collapses, mudslides, and water inrushes are common in tunnel construction. On the other hand, because tunnel engineering is carried out in underground space, communication signals are difficult to penetrate at the front line of construction, resulting in communication difficulties. Therefore, when accidents occur inside the tunnel or special procedures such as blasting require temporary evacuation of personnel, the traditional method of relying on manual relaying of reminders is difficult to establish good, timely, and effective communication between personnel inside and outside the tunnel and between adjacent tunnels. This causes significant time delays in the connection of normal construction operations and the emergency response to emergencies.

[0003] However, traditional manual early warning is difficult to achieve simultaneous early warning at the tunnel entrance, inside the tunnel, and in adjacent tunnels. In addition, traditional early warning methods require at least 3 to 4 people to provide on-site early warning reminders. Utility Model Content

[0004] The purpose of this application is to provide an emergency early warning system for tunnel construction in order to solve the problems mentioned above.

[0005] The technical solution adopted in this application is as follows: a tunnel construction emergency early warning system, the system comprising: a wireless remote-controlled audible and visual alarm speaker, a wireless signal transmission system, a tunnel entrance early warning system, a wireless linkage intelligent control system, intercom communication equipment, video monitoring equipment, a power supply device, warning reminders and fixed support facilities;

[0006] The communication bus port of the wireless linkage intelligent control system is directly connected to the data transceiver of the wireless signal transmission system via a wireless bridge.

[0007] The RS485 control output terminal of the wireless linkage intelligent control system is connected to the drive interface of the sound and light alarm of the tunnel entrance early warning system, the traffic signal relay interface, and the control terminal of the hydraulic telescopic solenoid valve of the warning and fixed support facility via cables.

[0008] The wireless receiver module of the wireless remote-controlled sound and light alarm speaker is paired and bound to the 2.4GHz band transmitter of the wireless linkage intelligent control system via radio frequency signals.

[0009] The HDMI video output terminal of the video surveillance equipment is connected to the video encoder input terminal of the wireless signal transmission system. The encoded signal is transmitted via a wireless bridge to the AV input port of the monitoring screen of the tunnel entrance early warning system and the display interface of the dispatch terminal of the intercom communication equipment.

[0010] The positive and negative terminals of the 24V DC output of the power supply device are connected in parallel to the input terminal of the power management module of the wireless linkage intelligent control system, the power supply terminal of the LED warning sign of the warning reminder and fixed support facility through the distribution box, and its backup power line is directly connected to the UPS emergency power access point of the tunnel entrance early warning system.

[0011] In a preferred embodiment, the wireless remote-controlled sound and light alarm speaker consists of a high-power speaker unit, a multi-band wireless signal receiver, an integrated control circuit, and an explosion-proof and waterproof housing.

[0012] In a preferred embodiment, the wireless signal transmission system includes a dual-channel wireless bridge, an omnidirectional antenna, and a signal repeater. The bridge supports 4G / 5G and Wi-Fi multi-mode communication protocols and is equipped with a gigabit Ethernet interface for connecting video surveillance equipment.

[0013] In a preferred embodiment, the tunnel entrance early warning system consists of LED strobe warning lights, rotating alarm lights, traffic signal lights, a physical gate control unit, and a status display screen.

[0014] In a preferred embodiment, the wireless linkage intelligent control system includes a central processing unit, a multi-protocol communication module, and an extended input / output interface.

[0015] In a preferred embodiment, the intercom communication device comprises a digital trunking intercom base station, a portable handheld terminal, and an audio processing module.

[0016] In a preferred embodiment, the video surveillance equipment consists of a high-definition infrared camera, a video encoder, and a storage server.

[0017] In a preferred embodiment, the power supply device adopts a dual-redundant power supply design. The main power supply is a lithium-ion battery pack equipped with an intelligent charging management module and a power monitoring circuit. The backup power supply is a diesel generator, which is connected in parallel with the main power supply through an automatic switching switch.

[0018] In a preferred embodiment, the warning and fixed support facility includes an LED warning sign and a rotating warning ball. The sign has a built-in character chip and a driving circuit, and the warning ball is driven by a motor to rotate 360 ​​degrees.

[0019] In a preferred embodiment, a method of using a tunnel construction emergency early warning system includes the following steps:

[0020] S1: System Initialization and Module Self-Test

[0021] Turn on the main power switch of the power supply unit to verify the lithium-ion battery pack power and the standby status of the backup diesel generator; start the sound and light self-test program of the wireless remote-controlled sound and light alarm speaker through the wireless linkage intelligent control system, activate the self-test mode of the traffic signal light group of the tunnel entrance early warning system, and simultaneously test the extension and retraction of the hydraulic telescopic support column of the warning reminder and fixed support facility; check the signal strength of the wireless bridge of the wireless signal transmission system to ensure that the infrared camera image of the video monitoring equipment is transmitted to the tunnel entrance display screen in real time, and complete the call link test between the base station and the handheld terminal of the intercom communication equipment.

[0022] S2: Emergency Warning Triggering and Signal Transmission:

[0023] When workers inside the tunnel press the emergency button on the wireless remote-controlled audible and visual alarm speaker, or when a sensor detects an anomaly, the trigger signal is transmitted to the wireless linkage intelligent control system via the wireless bridge of the wireless signal transmission system; the system's central processing unit immediately analyzes the signal type and generates an emergency command.

[0024] S3: Early warning system at the tunnel entrance and equipment linkage execution:

[0025] The wireless linkage intelligent control system sends instructions to the tunnel entrance early warning system to activate the LED flashing warning lights, rotating alarm lights, and red traffic lights, and simultaneously close the vehicle / pedestrian gates; at the same time, it controls the hydraulic telescopic pillars of the warning and fixed support facilities to extend and press against the tunnel sidewall, lock the trolley's posture, and triggers the pan-tilt-zoom preset position of the video monitoring equipment to track abnormal areas through the wireless signal transmission system.

[0026] S4: Emergency Confirmation and Information Sharing:

[0027] Personnel on duty at the tunnel entrance observe the situation inside the tunnel through real-time video surveillance equipment and use handheld terminals of walkie-talkie communication devices to communicate with personnel inside the tunnel to verify details of the danger. If it is necessary to expand the warning range, they can select the "single tunnel warning" or "dual tunnel linkage" mode through the operation interface of the wireless linkage intelligent control system.

[0028] S5: Multi-level early warning control and status monitoring:

[0029] When the "dual-tunnel linkage" mode is selected, the wireless linkage intelligent control system sends instructions to the adjacent tunnel through the wireless signal transmission system to activate the audible and visual alarms and traffic lights of the tunnel entrance early warning system; the system continuously receives warning reminders and hydraulic support pressure sensor data of the fixed support facilities, and triggers a secondary alarm and records it to the storage unit when abnormalities occur.

[0030] S6: Warning Cancellation and System Reset

[0031] After the emergency was handled, the on-duty personnel confirmed the safety status through video monitoring equipment. After verifying with the workers through intercom communication equipment, they operated the wireless linkage intelligent control system to shut down the audible and visual alarms and red signal lights of the tunnel entrance early warning system and restored the green light for passage. They manually retracted the hydraulic supports of the warning reminder and fixed support facilities to their initial positions, turned off the alarm function of the wireless remote control audible and visual alarm speaker, switched the power supply to the main power charging mode, and backed up the system log.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0033] 1. This application significantly enhances emergency response capabilities in construction scenarios by integrating information technology and mechanized equipment. The system employs a multi-module linkage mechanism, enabling real-time detection of abnormal conditions within the tunnel and simultaneous triggering of early warnings, effectively resolving the delays and information transmission errors inherent in traditional manual early warning systems. When a sudden emergency occurs, the wireless communication and intelligent control modules can rapidly extend signals to the tunnel entrance, the tunnel interior, and adjacent tunnels, ensuring that personnel receive evacuation instructions immediately through multi-dimensional warning methods such as sound and light, voice, and traffic signals. Simultaneously, the intervention of fixed supports and automated equipment stabilizes the construction trolley's posture and avoids the safety risks of manual operation, fundamentally reducing the probability of secondary disasters caused by equipment instability.

[0034] 2. In this application, the intelligent control module can automatically match single-tunnel early warning or dual-tunnel linkage mode according to different types of hazards, accurately controlling the warning range and response intensity. This avoids resource waste caused by excessive early warnings while ensuring full coverage of critical areas. Through seamless cooperation between video monitoring and intercom equipment, on-duty personnel can remotely grasp the on-site dynamics and command and coordinate, significantly shortening the decision-making chain for emergency response. In addition, the modular design enables the system to be rapidly deployed and flexibly adjusted, adapting to the segmented construction needs of tunnels under complex geological conditions, and providing sustainable technical support for construction safety management. Attached Figure Description

[0035] Figure 1 This is a network transmission layout diagram of the tunnel construction emergency early warning system of this application;

[0036] Figure 2 This is a block diagram of the overall structure of this application.

[0037] The following are marked in the diagram: 1. Wireless remote-controlled sound and light alarm and speaker; 2. Wireless signal transmission system; 3. Tunnel entrance early warning system; 4. Wireless linkage intelligent control system; 5. Intercom communication equipment; 6. Video surveillance equipment; 7. Power supply device; 8. Warning reminder and fixed support facilities. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] Example:

[0040] Reference Figure 1-2 An emergency early warning system for tunnel construction includes: a wireless remote-controlled audible and visual alarm speaker 1, a wireless signal transmission system 2, a tunnel entrance early warning system 3, a wireless linkage intelligent control system 4, an intercom communication device 5, a video monitoring device 6, a power supply device 7, and warning reminder and fixed support facilities 8.

[0041] The communication bus port of the wireless linkage intelligent control system 4 is directly connected to the data transceiver of the wireless signal transmission system 2 via a wireless bridge.

[0042] The RS485 control output of the wireless linkage intelligent control system 4 is connected to the sound and light alarm drive interface, traffic signal relay interface, and hydraulic telescopic solenoid valve control terminal of the warning and fixed support facility 8 of the tunnel entrance early warning system 3 via cables.

[0043] The wireless receiver module of the wireless remote-controlled sound and light alarm speaker 1 is paired and bound to the 2.4GHz frequency band transmitter of the wireless linkage intelligent control system 4 via radio frequency signals.

[0044] The HDMI video output of the video surveillance device 6 is connected to the video encoder input of the wireless signal transmission system 2. The encoded signal is transmitted via a wireless bridge to the AV input port of the monitoring screen of the tunnel entrance early warning system 3 and the display interface of the dispatch terminal of the intercom communication device 5.

[0045] The positive and negative terminals of the 24V DC output of the power supply unit 7 are connected in parallel to the power management module input terminal of the wireless linkage intelligent control system 4, the LED warning sign power supply terminal of the warning reminder and fixed support facility 8 through the distribution box, and its backup power line is directly connected to the UPS emergency power access point of the tunnel entrance early warning system 3.

[0046] The wireless remote-controlled audible and visual alarm speaker 1 consists of a high-power speaker unit, a multi-band wireless signal receiver, an integrated control circuit, and an explosion-proof and waterproof housing. The speaker unit employs a dual voice coil structure, supporting switching between voice broadcast and alarm tones. The wireless signal receiver has a built-in RF decoding chip, adaptable to remote control commands on different frequency bands. The control circuit integrates an audible and visual synchronization drive module, connected to an external trigger signal via a relay interface. The explosion-proof housing is made of aluminum alloy, filled with sound-insulating and shock-absorbing material, and features a manual emergency button and status indicator lights on its surface.

[0047] The wireless signal transmission system 2 includes a dual-channel wireless bridge, an omnidirectional antenna, and a signal repeater. The bridge supports 4G / 5G and Wi-Fi multi-mode communication protocols and is equipped with a gigabit Ethernet interface for connecting video surveillance equipment.

[0048] The tunnel entrance early warning system 3 consists of LED strobe warning lights, rotating alarm lights, traffic signal lights, a physical gate control unit, and a status display screen. The strobe warning lights use an ultra-high brightness LED array and support alternating red and blue flashing; the traffic signal lights include red, green, and yellow LED modules with a built-in countdown display function; the physical gate control unit drives the gate to rise and fall via an electromagnetic lock, and the status display screen provides real-time feedback on the warning level and handling instructions, with an anti-glare glass panel on its surface.

[0049] The wireless linkage intelligent control system 4 includes a central processing unit, a multi-protocol communication module, and extended input / output interfaces. The central processing unit has built-in logic operation chips and memory chips, the communication module supports Modbus, TCP / IP, and wireless radio frequency protocols, and the input / output interfaces connect to sensor signals and drive actuators.

[0050] The intercom communication device 5 consists of a digital trunking intercom base station, a portable handheld terminal, and an audio processing module. The base station has a built-in voice encoder and anti-interference filter, the handheld terminal integrates a noise-canceling microphone and a high-sensitivity speaker, and the audio processing module supports multi-channel voice mixing and priority scheduling functions.

[0051] The video surveillance equipment 6 consists of a high-definition infrared camera, a video encoder, and a storage server. The camera is equipped with a motorized pan-tilt head and a wiper mechanism. The encoder supports the H.265 compression algorithm. The storage server is equipped with a RAID disk array and a network transmission module.

[0052] The power supply unit 7 adopts a dual-redundant power supply design. The main power supply is a lithium-ion battery pack, equipped with an intelligent charging management module and a power monitoring circuit; the backup power supply is a diesel generator, which is connected in parallel with the main power supply through an automatic switching switch.

[0053] Warning and reminder facilities 8 include LED warning signs and rotating warning balls. The signs have built-in character chips and drive circuits, and the warning balls are driven by a motor to rotate 360 ​​degrees.

[0054] The fixed support system consists of hydraulic telescopic pillars, high-strength anchor bolts, and a posture adjustment mechanism. The telescopic pillars control the oil circuit through a solenoid valve, the anchor bolts are pre-embedded in the tunnel sidewall, and the posture adjustment mechanism is equipped with an angle sensor and a manual fine-tuning knob.

[0055] The method of using the tunnel construction emergency early warning system includes the following steps:

[0056] S1: System Initialization and Module Self-Test

[0057] Turn on the main power switch of the power supply device 7 to verify the lithium-ion battery pack power and the standby status of the backup diesel generator; start the sound and light self-test program of the wireless remote control sound and light alarm speaker 1 through the wireless linkage intelligent control system 4, activate the traffic signal light group self-test mode of the tunnel entrance early warning system 3, and simultaneously test the extension and retraction of the hydraulic telescopic support column of the warning reminder and fixed support facility 8; check the signal strength of the wireless bridge of the wireless signal transmission system 2 to ensure that the infrared camera image of the video monitoring equipment 6 is transmitted to the tunnel entrance display screen in real time, and complete the call link test between the base station and the handheld terminal of the intercom communication equipment 5.

[0058] S2: Emergency Warning Triggering and Signal Transmission:

[0059] When workers inside the tunnel press the emergency button on the wireless remote-controlled audible and visual alarm speaker 1, or when sensors detect an anomaly such as excessive gas levels or settlement displacement, the trigger signal is transmitted through the wireless bridge of the wireless signal transmission system 2 to the wireless linkage intelligent control system 4. The central processing unit of system 4 immediately analyzes the signal type and generates an emergency command.

[0060] S3: Early warning system at the tunnel entrance and equipment linkage execution:

[0061] The wireless linkage intelligent control system 4 sends instructions to the tunnel entrance early warning system 3 to activate the LED flashing warning lights, rotating alarm lights and red traffic lights, and simultaneously close the vehicle / pedestrian gates; at the same time, it controls the hydraulic telescopic pillars of the warning reminder and fixed support facilities 8 to extend and press against the tunnel sidewall, lock the trolley posture, and trigger the pan-tilt preset position of the video monitoring equipment 6 to track the abnormal area through the wireless signal transmission system 2.

[0062] S4: Emergency Confirmation and Information Sharing:

[0063] The personnel on duty at the tunnel entrance observe the situation inside the tunnel through the real-time video monitoring equipment 6, and use the handheld terminal of the intercom communication equipment 5 to communicate with the personnel inside the tunnel to verify the details of the danger; if it is necessary to expand the warning range, the "single tunnel warning" or "dual tunnel linkage" mode can be selected through the operation interface of the wireless linkage intelligent control system 4.

[0064] S5: Multi-level early warning control and status monitoring:

[0065] When the "dual-tunnel linkage" mode is selected, the wireless linkage intelligent control system 4 sends instructions to the adjacent tunnel through the wireless signal transmission system 2 to activate the audible and visual alarm and traffic lights of the tunnel entrance early warning system 3; the system 4 continuously receives warning reminders and hydraulic support pressure sensor data of the fixed support facility 8, and triggers a secondary alarm and records it to the storage unit when there is an abnormality.

[0066] S6: Warning Cancellation and System Reset

[0067] After the emergency was handled, the on-duty personnel confirmed the safety status through the video monitoring equipment 6, and after verifying with the workers through the intercom communication equipment 5, operated the wireless linkage intelligent control system 4 to turn off the audible and visual alarm and red signal light of the tunnel entrance early warning system 3 and restore the green light for passage; manually retracted the hydraulic support of the warning reminder and fixed support facility 8 to the initial position, turned off the alarm function of the wireless remote control audible and visual alarm speaker 1, switched the power supply device 7 to the main power charging mode and backed up the system log.

[0068] From the above, we can conclude that:

[0069] This application significantly enhances emergency response capabilities in construction scenarios by integrating information technology and mechanized equipment. The system employs a multi-module linkage mechanism, enabling real-time detection of abnormal conditions within the tunnel and simultaneous triggering of early warnings, effectively resolving the delays and information transmission errors inherent in traditional manual early warning systems. When a sudden emergency occurs, the wireless communication and intelligent control modules can rapidly extend signals to the tunnel entrance, the tunnel interior, and adjacent tunnels, ensuring that personnel receive evacuation instructions immediately through multi-dimensional warning methods such as sound and light, voice, and traffic signals. Simultaneously, the intervention of fixed supports and automated equipment stabilizes the construction trolley's posture and avoids the safety risks of manual operation, fundamentally reducing the probability of secondary disasters caused by equipment instability.

[0070] In this application, the intelligent control module can automatically match single-tunnel early warning or dual-tunnel linkage mode according to different types of hazards, accurately controlling the warning range and response intensity. This avoids resource waste caused by excessive early warnings while ensuring full coverage of critical areas. Through seamless cooperation between video monitoring and intercom equipment, on-duty personnel can remotely grasp the on-site dynamics and command and coordinate, significantly shortening the decision-making chain for emergency response. In addition, the modular design enables the system to be rapidly deployed and flexibly adjusted, adapting to the segmented construction needs of tunnels under complex geological conditions, and providing sustainable technical support for construction safety management.

[0071] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An emergency early warning system for tunnel construction, characterized in that: The system includes: a wireless remote-controlled sound and light alarm speaker (1), a wireless signal transmission system (2), a tunnel entrance early warning system (3), a wireless linkage intelligent control system (4), an intercom communication device (5), a video monitoring device (6), a power supply device (7), and warning reminder and fixed support facilities (8). The communication bus port of the wireless linkage intelligent control system (4) is directly connected to the data transceiver of the wireless signal transmission system (2) via a wireless bridge. The RS485 control output terminal of the wireless linkage intelligent control system (4) is connected to the sound and light alarm drive interface, traffic signal relay interface and hydraulic telescopic solenoid valve control terminal of the tunnel entrance early warning system (3) via cable. The wireless receiving module of the wireless remote-controlled sound and light alarm speaker (1) is paired and bound to the 2.4GHz frequency band transmitter of the wireless linkage intelligent control system (4) through radio frequency signals. The HDMI video output of the video surveillance device (6) is connected to the video encoder input of the wireless signal transmission system (2). After encoding, the signal is transmitted via a wireless bridge to the monitoring screen AV input port of the tunnel entrance early warning system (3) and the dispatch terminal display interface of the intercom communication device (5). The positive and negative terminals of the 24V DC output of the power supply device (7) are connected in parallel to the power management module input terminal of the wireless linkage intelligent control system (4), the LED warning sign power supply terminal of the warning reminder and fixed support facility (8) through the distribution box, and its backup power line is directly connected to the UPS emergency power access point of the tunnel entrance early warning system (3).

2. The tunnel construction emergency early warning system of claim 1, wherein: The wireless remote-controlled sound and light alarm speaker (1) consists of a high-power speaker unit, a multi-band wireless signal receiver, an integrated control circuit, and an explosion-proof and waterproof shell.

3. The tunnel construction emergency warning system of claim 1, wherein: The wireless signal transmission system (2) includes a dual-channel wireless bridge, an omnidirectional antenna and a signal repeater. The bridge supports 4G / 5G and Wi-Fi multi-mode communication protocols and is equipped with a gigabit Ethernet interface for connecting video surveillance equipment.

4. The tunnel construction emergency warning system of claim 1, wherein: The tunnel entrance early warning system (3) consists of LED strobe warning lights, rotating alarm lights, traffic signal lights, physical gate control unit and status display screen.

5. The tunnel construction emergency warning system of claim 1, wherein: The wireless linkage intelligent control system (4) includes a central processing unit, a multi-protocol communication module, and an extended input / output interface.

6. The tunnel construction emergency warning system of claim 1, wherein: The intercom communication device (5) consists of a digital trunking intercom base station, a portable handheld terminal and an audio processing module. The base station has a built-in voice encoder and anti-interference filter. The handheld terminal integrates a noise-reducing microphone and a high-sensitivity speaker. The audio processing module supports multi-channel voice mixing and priority scheduling functions.

7. The tunnel construction emergency warning system of claim 1, wherein: The video surveillance equipment (6) consists of a high-definition infrared camera, a video encoder, and a storage server.

8. The tunnel construction emergency warning system of claim 1, wherein: The power supply device (7) adopts a dual-redundant power supply design. The main power supply is a lithium-ion battery pack, equipped with an intelligent charging management module and a power monitoring circuit; the backup power supply is a diesel generator, which is connected in parallel with the main power supply through an automatic switching switch.

9. The tunnel construction emergency warning system of claim 1, wherein: The warning and fixed support facilities (8) include LED warning signs and rotating warning balls.

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