Multifunctional safety helmet and tunnel safety monitoring system

Abstract

The utility model discloses a multifunctional safety helmet and a tunnel safety monitoring system, and relates to the technical field of tunnel monitoring, the multifunctional safety helmet comprises a helmet body and earmuffs, the front end of the helmet body is provided with an illuminating lamp and a mobile camera, and the helmet body is provided with an air monitoring module, a main control module, a communication module and a power supply module; the earmuffs are rotatably connected to the cap body, and the earmuffs are provided with sound production modules; the illuminating lamp, the mobile camera, the air monitoring module, the communication module, the power supply module and the sound production module are all electrically connected with the main control module. The main control module controls the camera, the air monitoring module collects safety information in the tunnel construction environment in real time and recognizes existing potential safety hazards or dangerous cases, the communication module shares the safety information of the tunnel construction environment to all constructors, and the main control module controls the sound production module to give an alarm to all the constructors. The safety of the construction environment in the tunnel is monitored in real time, and all constructors are warned in time according to found potential safety hazards or dangerous cases.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel monitoring technical field, especially a kind of multi-functional safety helmet and tunnel safety monitoring system. BACKGROUND

[0002] In tunnel construction, due to the relatively closed and narrow construction environment of tunnel, there are often many safety hazards, which are not easy to be observed by construction personnel and are prone to safety accidents, seriously endangering the safety of construction personnel and equipment in the tunnel.

[0003] The space in the tunnel is relatively narrow, and the air flowability is poor. Dust generated during tunnel construction can easily accumulate and cause harm to the health of construction personnel. Due to the geological environment of the tunnel and factors such as tunnel blasting or mechanical construction, harmful gases such as gas and carbon monoxide can also accumulate in the tunnel, seriously endangering the health of tunnel construction personnel and even causing explosions. In addition, there may be a risk of landslides in the tunnel, and there may also be a risk of fire from equipment or materials in the tunnel. These hazards or risks are difficult to detect in time, and it is also difficult to notify all construction personnel in the tunnel in time to respond quickly. SUMMARY

[0004] The main purpose of the utility model is to provide a multi-functional safety helmet and tunnel safety monitoring system, which aims to monitor the safety of the construction environment in the tunnel in real time and alert all construction personnel in time of any safety hazards or risks found.

[0005] To achieve the above purpose, the multi-functional safety helmet provided by the utility model comprises a hat body and an earmuff. The front end of the hat body is provided with an illuminating lamp and a mobile camera. The hat body is also provided with an air monitoring module, a main control module, a communication module and a power supply module. The earmuff is rotatably connected to the hat body. The earmuff is provided with a sound emitting module. The illuminating lamp, the mobile camera, the air monitoring module, the communication module, the power supply module and the sound emitting module are electrically connected to the main control module.

[0006] In an embodiment, the air monitoring module comprises at least one of a methane detection sensor, a carbon monoxide detection sensor and a dust detection sensor.

[0007] In an embodiment, the hat body is also provided with a positioning module, which is electrically connected to the main control module.

[0008] In an embodiment, the positioning module comprises at least one of a Bluetooth module, a WiFi module and a GPS module.

[0009] In an embodiment, the outer wall of the cap body is further provided with a control panel, the control panel is provided with a camera switch, a lighting switch and an answering switch, the camera switch is electrically connected with the mobile camera, the lighting switch is electrically connected with the lighting lamp, and the answering switch is electrically connected with the sound generating module.

[0010] In an embodiment, the control panel is further provided with an emergency alarm switch, the outer wall of the cap body is further provided with a sound and light alarm, and the emergency alarm switch, the main control module and the sound and light alarm are sequentially electrically connected.

[0011] In an embodiment, the control panel is further provided with a protective cover, the protective cover covers the emergency alarm switch, one end of the protective cover is hinged to the cap body, and the other end of the protective cover is clamped to the cap body.

[0012] In an embodiment, the ear cover is further provided with a microphone, and the microphone is electrically connected with the main control module.

[0013] In an embodiment, the cap body is further provided with a human body monitoring module, and the human body monitoring module at least includes one of a temperature sensor and a cap-off alarm.

[0014] The utility model also proposes a kind of tunnel safety monitoring system, the tunnel safety monitoring system includes control terminal, first wireless network bridge, second wireless network bridge, positioning base station, monitoring camera, environmental monitor and the multifunctional safety cap as described in any one of above embodiment;The control terminal includes server, display, storage and input device, the display, the storage and the input device are electrically connected with the server, the first wireless network bridge is electrically connected with the server, the second wireless network bridge is connected with the first wireless network bridge, the positioning base station is electrically connected with the second wireless network bridge, the monitoring camera is electrically connected with the second wireless network bridge, the environmental monitor is electrically connected with the second wireless network bridge, the environmental monitor at least includes one of methane detection sensor, carbon monoxide detection sensor and dust detection sensor, and the multifunctional safety cap is connected with the second wireless network bridge by the communication module.

[0015] This utility model discloses a multi-functional safety helmet comprising a helmet body and earmuffs. The front of the helmet body is equipped with a lighting lamp and a mobile camera. The helmet body also includes an air monitoring module, a main control module, a communication module, and a power supply module. The earmuffs are rotatably connected to the helmet body and contain a sound-generating module. The lighting lamp, mobile camera, air monitoring module, communication module, power supply module, and sound-generating module are all electrically connected to the main control module. The main control module can control the camera and air monitoring module to collect real-time safety information from the tunnel construction environment and identify potential safety hazards or dangers. Through the communication module, the safety information of the tunnel construction environment can be shared with all construction personnel wearing the multi-functional safety helmet. The main control module can control the sound-generating module to promptly issue warnings to all construction personnel. This achieves real-time monitoring of the safety of the tunnel construction environment and timely alerts to all construction personnel of any discovered safety hazards or dangers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the multifunctional safety helmet provided by this utility model;

[0018] Figure 2 for Figure 1 Another structural diagram of the multi-functional safety helmet;

[0019] Figure 3 for Figure 1 Another structural diagram of the multi-functional safety helmet;

[0020] Figure 4 for Figure 1 A schematic diagram of the components of a multi-functional safety helmet;

[0021] Figure 5 This is a schematic diagram showing the layout of the tunnel safety monitoring system provided by this utility model within a tunnel.

[0022] Explanation of icon numbers:

[0023] 100. Multifunctional safety helmet;

[0024] 1, cap body; 11, lighting lamp; 12, mobile camera; 13, air monitoring module; 14, control panel; 141, camera switch; 142, lighting switch; 143, answering switch; 144, emergency alarm switch; 15, audible and visual alarm; 16, protective cover; 17, human body monitoring module; 18, main control module; 19, communication module; 20, power supply module;

[0025] 2, ear cover; 22, microphone;

[0026] 200, tunnel safety monitoring system;

[0027] 210, control terminal; 220, first wireless bridge; 230, second wireless bridge; 240, positioning base station; 250, monitoring camera; 260, environmental monitor;

[0028] 301, tunnel portal wall; 302, working face.

[0029] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0032] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears in the whole text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not in the protection scope required by the utility model.

[0033] The utility model provides a kind of multi-functional safety helmet 100.

[0034] Please refer to Figures 1 to 4 In an embodiment of the utility model, the multi-functional safety helmet 100 includes cap body 1 and earmuff 2, and the front end of cap body 1 is provided with illuminating lamp 11 and mobile camera 12, and cap body 1 is further provided with air monitoring module 13, main control module 18, communication module 19 and power supply module 20;Earmuff 2 is rotatably connected to cap body 1, and sound production module is arranged in earmuff 2;Illuminating lamp 11, mobile camera 12, air monitoring module 13, communication module 19, power supply module 20 and sound production module are electrically connected with main control module 18.

[0035] In the embodiment, the front end of cap body 1 is provided with convex hull, and installation space for accommodating mobile camera 12, illuminating lamp 11 and circuit board assembly is formed in the convex hull.Mobile camera 12 refers to the camera that is arranged in multi-functional safety helmet 100 and moves along with the personnel wearing multi-functional safety helmet 100.Mobile camera 12 is arranged at intervals with illuminating lamp 11, and the purpose is to prevent illuminating lamp 11 from leaking light or when dust content in air in tunnel environment is relatively high, seriously reduce the quality of picture obtained by camera.Illuminating lamp 11 is used to improve the field of view of construction personnel and mobile camera 12 in tunnel, and mobile camera 12 can also adopt camera with night vision function, so as to more clearly record the construction environment in tunnel, which is helpful for image intelligent recognition program carried by control terminal 210 to timely find safety hidden danger that is not easy to be perceived by people.

[0036] The main control module 18, the communication module 19 and the power supply module 20 are also accommodated in the convex envelope. The main control module 18 is the core processing unit of the multifunctional safety helmet 100, which includes a main control circuit and a microprocessor (such as an STM32 series microcontroller), a memory (such as an SD card), an input / output interface, etc. The main control module 18 can also use an ESP32 / ESP8266 module, etc. The main control module 18 is responsible for receiving signals from various modules such as the air monitoring module 13, the mobile camera 12, the lighting lamp 11, etc., processing and analyzing, and controlling the work of other modules according to the preset program. The communication module 19 is used to realize data transmission and communication between the multifunctional safety helmet 100 and the control terminal 210. This module can use wireless communication technology such as Wi-Fi, Bluetooth, GPS, etc. Through the communication module 19, the data monitored by the air monitoring module 13 in real time, the images or videos captured by the camera can be sent to the remote monitoring center. For example, the communication module 19 can use an RFID module, support ISO / IEC 14443, ISO / IEC 15693 standards, etc., or use a Bluetooth module (especially a BLE module), support Bluetooth 4.0 and above standards. The power supply module 20 provides stable power supply for each functional module of the multifunctional safety helmet 100. The power supply module 20 can include a built-in rechargeable battery such as a lithium battery and a corresponding power management circuit. The module can also include a charging interface to facilitate charging the battery.

[0037] The mobile camera 12 can record the working scene in real time when it is in the open state. The video captured by the mobile camera 12 is transmitted to the main control module 18 through electrical signals. The main control module 18 processes the video, such as compression encoding, and transmits it to the control terminal 210 in real time through the communication module 19. The control terminal 210 judges the returned video, and if there is a potential safety hazard (such as unstable structure, fire signs, etc.), it will immediately send an alarm information to all multifunctional safety helmets 100 in the tunnel, issue a warning through the sound module, and notify the relevant personnel through the communication sound module.

[0038] The rear end of the cap body 1 is provided with a mounting groove, and the slot cover of the mounting groove is provided with a cover plate, the cover plate is provided with a gas permeable structure with a plurality of through holes, the air monitoring module 13 is arranged in the mounting groove, and the cover plate covers the slot of the mounting groove to avoid damage to the air monitoring module 13, thereby prolonging the service life of the air monitoring module 13. The air monitoring module 13 is used for monitoring the content of dust or the content of harmful gases or flammable and explosive gases in the air, such as carbon monoxide and methane. The module includes a sensor for monitoring the concentration of the gas and a corresponding signal processing circuit. The sensor can be an optical sensor, an electrochemical sensor or other types of sensors, which can convert the monitored air quality parameters into an electrical signal. When the air monitoring module 13 detects that the concentration of harmful gases in the air exceeds a safety threshold. The air monitoring module 13 sends this information to the main control module 18 through an electrical signal. After receiving the information, the main control module 18 activates the sound emitting module to emit a warning sound to remind the construction personnel of the danger. At the same time, the main control module 18 sends an alarm information to the control terminal 210 through the communication module 19, and the control terminal 210 synchronizes the danger information to the remaining multifunctional safety hats 100 in the tunnel.

[0039] The sound emitting module is arranged in the ear cover 2, and the two ear covers 2 are rotatably arranged on the two sides of the cap body 1, that is, each ear cover 2 can be independently rotated. Soundproof cotton can also be arranged on the periphery of the ear cover 2, when the construction environment is in a relatively large noise, the soundproof cotton covers the user's ears to isolate the noise, and when communication is needed, the ear cover 2 can be rotated to be away from the user's ears to communicate normally.

[0040] The main control module 18 in the multifunctional safety hat 100 of the embodiment can control the camera and the air monitoring module 13 to collect and identify the safety information in the tunnel construction environment in real time, and through the communication module 19, the safety information of the tunnel construction environment can be shared with all the construction personnel wearing the multifunctional safety hat 100, and the main control module 18 can control the sound emitting module to timely warn all the construction personnel, so that the safety of the construction environment in the tunnel is monitored in real time, and the safety hidden danger or danger found is timely warned to all the construction personnel.

[0041] Further, please refer to Figure 2 and Figure 3 In an embodiment of the utility model, the air monitoring module 13 at least includes one of methane detection sensor, carbon monoxide detection sensor and dust detection sensor.

[0042] In the embodiment, the rear end of the cap body 1 is provided with a mounting groove for accommodating the air monitoring module 13, and the slot cover of the mounting groove is provided with a cover plate, and the cover plate is provided with a gas permeable structure with a plurality of through holes, and air can be monitored by the air monitoring module 13 through the gas permeable structure. The air monitoring module 13 at least includes one of a methane detection sensor, a carbon monoxide detection sensor and a dust detection sensor. The methane detection sensor can adopt MQ-4 gas sensor, and the gas sensitive material used in the MQ-4 gas sensor is tin dioxide with low conductivity in clean air. When the sensor is in an environment containing fuel gas, the conductivity of the sensor increases with the increase of the concentration of the combustible gas in the air. The change of the conductivity can be converted into an output signal corresponding to the gas concentration by using a simple circuit. The sensitivity of the MQ-4 gas sensor to methane is high. The carbon monoxide detection sensor can adopt MQ-7 type carbon monoxide sensor, and the MQ-7 type carbon monoxide sensor adopts tin dioxide semiconductor as the gas sensitive material. The greater the concentration of carbon monoxide, the greater the conductivity, the lower the output resistance, and the greater the output analog signal. The dust sensor can adopt a light scattering type dust sensor, such as Sharp GP2Y1010AU0F sensor, etc. The sensor has a light source inside, which emits a light beam path: the emitted light passes through the particulate matter in the air to form a light beam path. On the opposite side of the light beam path, there is a photodetector for detecting the light passing through the light beam path. When the particulate matter in the air passes through the light beam path, the light is scattered by the particulate matter. The scattered light is received by the photodetector. The amount and size of the particulate matter determine the intensity of the scattered light. The photodetector converts the received light signal into an electrical signal. The electrical signal is sent to the processing circuit of the sensor, and the circuit calculates the concentration of the particulate matter according to the intensity of the scattered light.

[0043] Further, please refer to Figure 4 In an embodiment of the utility model, the cap body 1 is further provided with a positioning module, and the positioning module is electrically connected with the main control module 18. The positioning module at least includes one of a Bluetooth module, a WiFi module and a GPS module.

[0044] In the embodiment, the positioning module is provided to provide the distribution of the multi-functional safety helmet 100 in the tunnel, i.e. the distribution of the construction personnel in the tunnel. The positioning module includes one or more of a Bluetooth module, a WiFi module and a GPS module. The positioning module is electrically connected with the main control module 18, and the position data collected by the positioning module can be transmitted to the main control module 18 through electrical signals. The main control module 18 can calculate the approximate position of the safety helmet and send it to the remote monitoring center through the communication module 19. By integrating the positioning module, the multi-functional safety helmet 100 of the utility model can quickly locate the construction personnel in an emergency, improve the rescue efficiency, and also can be used to monitor the position of the construction personnel in daily work, ensure the work safety and efficiency.

[0045] Further, please refer to Figure 2 and Figure 3 In an embodiment of the present application, the outer wall of the cap body 1 is further provided with a control panel 14, the control panel 14 is provided with a camera switch 141, an illumination switch 142 and an answering switch 143, the camera switch 141 is electrically connected with the mobile camera 12, the illumination switch 142 is electrically connected with the illuminating lamp 11, and the answering switch 143 is electrically connected with the sound emitting module.

[0046] In the embodiment, the control panel 14 is located on the outer wall of the cap body 1, which is convenient for the construction personnel to operate. The control panel 14 is provided with the camera switch 141, the illumination switch 142 and the answering switch 143, the camera switch 141 is used to control the opening and closing of the mobile camera 12, the illumination switch 142 is used to control the opening and closing of the illuminating lamp 11, and the answering switch 143 is used to answer or hang up the call from the sound emitting module. When the construction personnel needs to enter the tunnel to work or check, the camera switch 141 on the control panel 14 can be pressed. After the camera switch 141 is electrically connected with the main control module 18 and then electrically connected with the mobile camera 12, the main control module 18 receives the instruction and activates the mobile camera 12. The mobile camera 12 starts to work and captures video or image information, which can be displayed on the display screen of the control terminal 210 in real time or stored in the memory of the main control module 18 for subsequent viewing. In the insufficient light working environment, the construction personnel can press the illumination switch 142 on the control panel 14. After the illumination switch 142 is electrically connected with the main control module 18 and then electrically connected with the illuminating lamp 11, the main control module 18 receives the instruction and controls the illuminating lamp 11 to light. The illuminating lamp 11 provides sufficient light to help the construction personnel to see clearly in the dark environment, ensuring the accuracy and safety of the work. When the construction personnel needs to answer the phone or receive the instruction from the remote command center, the answering switch 143 can be pressed. After the answering switch 143 is electrically connected with the main control module 18 and then electrically connected with the sound emitting module, the main control module 18 receives the instruction and establishes a call connection through the communication module 19. The sound emitting module emits the call sound, and the construction personnel can have a conversation through the built-in or external microphone 22. After the conversation is completed, the answering switch 143 is pressed again to hang up the call. The design of the control panel 14 enables the construction personnel to quickly operate various functions without taking off the cap, improving the work efficiency. All the function switches are integrated on the control panel 14, reducing the openings on the cap body 1 and improving the overall protection performance of the safety cap.

[0047] Further, please refer to Figure 2 In an embodiment of the present application, the control panel 14 is further provided with an emergency alarm switch 144, the outer wall of the cap body 1 is further provided with an audible and visual alarm 15, and the emergency alarm switch 144, the main control module 18 and the audible and visual alarm 15 are sequentially electrically connected.

[0048] In the embodiment, the emergency alarm switch 144 and the emergency alarm switch 144 are arranged to provide a wide range of warning in the event of an emergency. The emergency alarm switch 144 is located on the control panel 14, which can be set as a prominent red button. The sound and light alarm 15 is installed on the outer wall of the rear end of the cap body 1, which includes a loud buzzer and a set of flashing LED lights. The emergency alarm button is connected with the main control module 18 and then connected with the sound and light alarm 15. When the construction personnel realizes the dangerous situation during the operation, the emergency alarm switch 144 can be pressed, and the emergency alarm switch 144 immediately sends an electrical signal to the main control module 18. After receiving the signal, the main control module 18 starts the sound and light alarm 15, and the buzzer starts to alarm, and the LED light flashes at a certain frequency to attract the attention of the surrounding personnel. At the same time, the main control module 18 sends the alarm event to the control terminal 210 through the communication module 19, so that the construction personnel at the control terminal 210 can start the emergency rescue process.

[0049] Further, please refer to Figure 2 In an embodiment of the utility model, the control panel 14 is further provided with a protective cover 16, the protective cover 16 covers the emergency alarm switch 144, one end of the protective cover 16 is hinged with the cap body 1, and the other end of the protective cover 16 is clamped with the cap body 1.

[0050] In the embodiment, the emergency alarm switch 144 on the control panel 14 is equipped with the protective cover 16, the protective cover 16 covers the emergency alarm switch 144 to prevent misoperation or external factors from damaging the switch. One end of the protective cover 16 is connected with the cap body 1 through the hinge structure, so that the protective cover 16 can rotate around the hinge structure to open and close. The other end of the protective cover 16 is provided with a clamping structure, which can be clamped with the cap body 1 when the protective cover 16 is closed, so as to ensure that the protective cover 16 will not be accidentally opened during normal use.

[0051] Further, please refer to Figures 1 to 3 In an embodiment of the utility model, the earmuff 2 is further provided with a microphone 22, and the microphone 22 is electrically connected with the main control module 18.

[0052] In the embodiment, the microphone 22 is connected with the bottom end of the earmuff 2, and the microphone 22 has a flexible connection section and a recording cylinder. The flexible connection section can be deformed to a certain extent to move the microphone 22 within a certain range and can be fixed at any time to adapt to the mouth positions and use habits of different construction personnel. The recording cylinder of the microphone 22 is the core part of sound collection, which can convert sound into an electrical signal. The microphone 22 arranged on the earmuff 2 can realize the communication between the construction personnel and the control terminal 210, such as when the construction personnel finds a safety hazard, the microphone 22 can be used to report to the control terminal 210.

[0053] Further, please refer to Figure 3 In an embodiment of the present application, the cap body 1 is further provided with a human body monitoring module 17, which at least includes one of a temperature sensor and a cap-off alarm.

[0054] In this embodiment, the main purpose of setting the human body monitoring module 17 is to ensure that the construction personnel always wear safety helmets during work, to prevent potential safety risks caused by cap-off. The cap-off detection sensor is usually a pressure sensor or a proximity sensor, which is installed inside the cap body 1 and used to detect whether the safety helmet is worn. When the safety helmet is correctly worn on the head, the sensor is in an activated state; once the safety helmet is taken off, the sensor will detect a state change. When the cap-off detection sensor detects that the safety helmet is taken off, it will send a signal to the main control module 18. After receiving the signal, the main control module 18 immediately activates the sound and light alarm 15 to issue a sound and light alarm to remind the construction personnel to wear the safety helmet again. Similarly, the temperature sensor, when the safety helmet is correctly worn on the head, the temperature sensor detects the normal human body temperature; once the safety helmet is taken off, the temperature sensor will detect the temperature change and send a signal to the main control module 18, and after the main control module 18 receives the signal, the voice reminding is issued through the sound emitting module in the earmuff 2, at this time the sound emitting module opens the loudspeaker mode, reminding the construction personnel to wear the safety helmet again.

[0055] The utility model further proposes a tunnel safety monitoring system 200.

[0056] Please refer to Figure 5 In an embodiment of the present application, the tunnel safety monitoring system 200 includes a control terminal 210, a first wireless network bridge 220, a second wireless network bridge 230, a positioning base station 240, a monitoring camera 250, an environmental monitor 260 and the multifunctional safety helmet 100 of any one of the above embodiments; the control terminal 210 includes a server, a display, a storage and an input device, the display, the storage and the input device are all electrically connected with the server, the first wireless network bridge 220 is electrically connected with the server, the second wireless network bridge 230 is communicatively connected with the first wireless network bridge 220, the positioning base station 240 is electrically connected with the second wireless network bridge 230, the monitoring camera 250 is electrically connected with the second wireless network bridge 230, the environmental monitor 260 is electrically connected with the second wireless network bridge 230, the environmental monitor 260 at least includes one of a methane detection sensor, a carbon monoxide detection sensor and a dust detection sensor, and the multifunctional safety helmet 100 is communicatively connected with the second wireless network bridge 230 through the communication module 19. Since the tunnel safety monitoring system 200 adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0057] In the embodiment, the control terminal 210 can be arranged outside the tunnel portal, the first wireless bridge 220 can be arranged near the tunnel portal wall 301 inside or outside the tunnel, and the second wireless bridge 230 is arranged inside the tunnel. It should be noted that the first wireless bridge 220 and the second wireless bridge 230 should be arranged to avoid large obstacles between them to interfere with signal transmission. A plurality of second wireless bridges 230 can be arranged in the direction from the tunnel portal wall 301 to the working face 302. At this time, the plurality of second wireless bridges 230 can be sequentially connected in communication in the direction from the tunnel portal wall 301 to the working face 302, and the second wireless bridge 230 closest to the tunnel portal wall 301 is connected in communication with the first wireless bridge 220. Each second wireless bridge 230 is connected to a positioning base station 240. The positioning base station 240 is used to emit a positioning signal. The multi-functional safety helmet 100 can receive the positioning signal to calculate position information and transmit the position information to the control terminal 210 through the second wireless bridge 230 and the first wireless bridge 220, so as to grasp the position distribution of each construction personnel. Therefore, in the actual application of the tunnel safety monitoring system 200, the tunnel can be sequentially divided into a plurality of work areas in the direction from the tunnel portal wall 301 to the working face 302. Each area is provided with a second wireless bridge 230. After the multi-functional safety helmet 100 is worn by the construction personnel and enters the tunnel, the multi-functional safety helmet 100 is connected with the second wireless bridge 230 in the corresponding area. In this way, each area can have good signal strength. The monitoring camera 250 and the environmental monitor 260 are arranged in each area. The monitoring camera 250 is different from the mobile camera 12. The monitoring camera 250 is fixed in the construction area and can continue to work after the construction personnel exit the construction area, continuously monitoring the construction area. Correspondingly, the control terminal 210 can still identify the danger sources and hidden dangers in the construction area after the construction personnel exit the construction area, preventing the construction personnel from encountering danger the next time they enter. Similarly, the environmental monitor 260 is fixed in the construction area and can continue to work after the construction personnel exit the construction area, continuously monitoring the construction area. The environmental monitor 260 at least includes one of a methane detection sensor, a carbon monoxide detection sensor, and a dust detection sensor. The control terminal 210 includes a server, a display, a storage, and an input device. The server, the display, the storage, and the input device can be installed in a special room or control room outside the tunnel portal. Through the input device (such as a keyboard, a mouse, etc.) and the display, an operator can configure and manage the server. The server is configured with an operating system and monitoring software, which is used to collect, process, and display data from various monitoring devices in the tunnel, and display the environmental conditions, personnel positions, video monitoring pictures, etc. in the tunnel in real time through the display. The storage is used to store historical monitoring data for subsequent analysis and query.

[0058] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A multi-functional safety cap, characterized by, The multifunctional safety helmet comprises: a cap body (1), the front end of the cap body (1) is provided with an illuminating lamp (11) and a mobile camera (12), the cap body (1) is further provided with an air monitoring module (13), a main control module (18), a communication module (19) and a power supply module (20); and ear muffs (2), the ear muffs (2) are rotatably connected to the cap body (1), and the ear muffs (2) are provided with a sound generating module; the illuminating lamp (11), the mobile camera (12), the air monitoring module (13), the communication module (19), the power supply module (20) and the sound generating module are electrically connected with the main control module (18).

2. The multi-functional safety cap of claim 1, wherein, The air monitoring module (13) at least comprises one of a methane detection sensor, a carbon monoxide detection sensor and a dust detection sensor.

3. The multi-functional safety hat of claim 1, wherein, The cap body (1) is further provided with a positioning module, and the positioning module is electrically connected with the main control module (18).

4. The multi-functional safety hat of claim 3, wherein, The positioning module at least comprises one of a Bluetooth module, a WiFi module and a GPS module.

5. The multi-functional safety hat of claim 1, wherein, The main control module (18) comprises a control panel (14), the control panel (14) is provided with a camera switch (141), an illuminating switch (142) and a receiving switch (143), the camera switch (141) is electrically connected with the mobile camera (12), the illuminating switch (142) is electrically connected with the illuminating lamp (11), and the receiving switch (143) is electrically connected with the sound generating module.

6. The multi-functional safety hat of claim 5, wherein, The control panel (14) is further provided with an emergency alarm switch (144), the outer wall of the cap body (1) is further provided with a sound and light alarm (15), and the emergency alarm switch (144), the main control module (18) and the sound and light alarm (15) are sequentially electrically connected.

7. The multi-functional safety hat of claim 6, wherein, The control panel (14) is further provided with a protective cover (16), the protective cover (16) covers the emergency alarm switch (144), one end of the protective cover (16) is hinged to the cap body (1), and the other end of the protective cover (16) is clamped to the cap body (1).

8. The multi-functional safety cap according to any one of claims 1 to 7, wherein The ear muffs (2) are further provided with a microphone (22), and the microphone (22) is electrically connected with the main control module (18).

9. The multi-functional safety cap according to any one of claims 1 to 7, wherein The cap body (1) is further provided with a human body monitoring module (17), and the human body monitoring module (17) at least comprises one of a temperature sensor and a cap-off alarm.

10. A tunnel safety monitoring system characterized by The tunnel safety monitoring system comprises: a control terminal (210), the control terminal (210) comprises a server, a display, a storage and an input device, and the display, the storage and the input device are electrically connected with the server; a first wireless network bridge (220), the first wireless network bridge (220) is electrically connected with the server; a second wireless network bridge (230), the second wireless network bridge (230) is in communication connection with the first wireless network bridge (220); a positioning base station (240), the positioning base station (240) is electrically connected with the second wireless network bridge (230); A monitoring camera (250) is electrically connected with the second wireless network bridge (230); An environment monitor (260) is electrically connected with the second wireless network bridge (230), and the environment monitor (260) at least includes one of a methane detection sensor, a carbon monoxide detection sensor, and a dust detection sensor; and The multifunctional safety helmet according to any one of claims 1 to 9, wherein the multifunctional safety helmet is in communication connection with the second wireless network bridge (230) through the communication module (19).

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