Infrasound wave receiving alarm device and method

Abstract

The present invention relates to an infrasound receiving alarm device, comprising a receiving terminal, earphones, and connecting wires, wherein the earphones are electrically connected to the receiving terminal through the connecting wires, and the receiving terminal comprises a bearing shell, a connecting slide rail, a connecting buckle, a driving power supply, a wireless communication antenna, a capacitive infrasound sensor, a control interface, a power connection port, an earphone interface, and a driving circuit. Its use method comprises three steps, namely, equipment assembly, early warning operation, and remote communication. On the one hand, the system structure of the present invention is simple, and it is flexible and convenient to carry and use, has good versatility, a high degree of integration, and strong environmental adaptability; on the other hand, the communication signal has the characteristics of low frequency, easy penetration, low attenuation, and not easy to be absorbed, thereby effectively overcoming the influence of the complex on-site environment on the communication signal, and realizing the early discovery of safety hazards in the surrounding large-scale environment and the safety warning of the staff, thereby greatly improving the safety and reliability of work construction.

Description

Technical Field

[0001] The invention relates to an infrasound wave receiving alarm device and method, belonging to the technical field of safety early warning. Background Art

[0002] In actual production and life, especially in load environments such as mines and tunnels and environments with severe interference, the current communication devices based on electromagnetic waves are easily affected by terrain factors, propagation medium factors and complex magnetic field environment factors, resulting in serious attenuation of propagation distance and signal strength, which seriously affects the reliability and stability of communication activities. This problem is particularly prominent in underground mines and coal working sites;

[0003] In addition, in daily work, monitoring of safety hazards is one of the important links in current production safety. At present, when monitoring safety hazards such as landslides, earthquakes, mudslides, floods, etc., it is often still carried out through traditional electromagnetic wave technology, which leads to the relatively poor monitoring accuracy and timeliness of the current safety hazard monitoring system. For example, a construction engineering hazard source identification technology and use method with Chinese patent publication number CN108573331A includes monitoring equipment, hazard source identification server, storage and management client, the monitoring equipment is connected to the hazard source identification server, and the hazard source server is connected to the management client and the storage. The hazard source data is processed by the hazard source identification server, so real-time hazard source identification technology is carried out, so it is also very easy to be affected by the quality of electromagnetic wave communication. The monitoring result.

[0004] Therefore, in order to solve this problem, it is urgent to develop a new infrasound receiving alarm device and method to meet the needs of practical use. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides an infrasound wave receiving alarm device and method.

[0006] An infrasound receiving and warning device, comprising a receiving terminal, earphones, and connecting wires. Among them, there is at least one earphone, which is electrically connected to the receiving terminal through the connecting wires. The receiving terminal includes a bearing shell, a connecting slide rail, a connecting buckle, a driving power supply, a wireless communication antenna, a capacitive infrasound sensor, a control interface, a power connection port, an earphone interface, a serial communication port, and a driving circuit. The bearing shell is a closed cavity structure. A power connection port is provided on its lower end surface, at least one earphone interface and a control interface are provided on its upper end surface. The power connection port, the earphone interface, and the control interface are all electrically connected to the driving circuit. At least one connecting buckle is provided on the rear end surface of the bearing shell, and at least two mounting grooves evenly distributed around the axis of the bearing shell are provided on the outer surface of the bearing shell. The axis of the mounting groove is parallel to the axis of the bearing shell. At least two connecting slide rails evenly distributed around the axis of the mounting groove are provided in the mounting groove. The axis of the connecting slide rail is parallel to the axis of the mounting groove. The number of capacitive infrasound sensors is the same as the number of mounting grooves. Each mounting groove is slidably connected to a capacitive infrasound sensor through the connecting slide rail. The axis of the capacitive infrasound sensor is parallel to the axis of the bearing shell. 1 / 2 - 3 / 4 of the effective volume of the capacitive infrasound sensor is embedded in the mounting groove, and the length of the capacitive infrasound sensor is 1 / 4 - 3 / 4 of the height of the bearing shell. A serial communication port is provided at the bottom of the mounting groove corresponding to the capacitive infrasound sensor. The capacitive infrasound sensor is electrically connected to the driving circuit through the serial communication port. The wireless communication antenna is hinged to the outer surface of the bearing shell through a ratchet mechanism, and the axis of the wireless communication antenna forms an angle of 0° - 90° with the axis of the bearing shell. The driving power supply and the driving circuit are both located in the bearing shell, and the driving circuit is also electrically connected to the driving power supply and the wireless communication antenna.

[0007] Further, the bearing shell includes a groove body, an end cover, a partition board, and a speaker. The groove body is a groove-shaped structure with a "凵" - shaped axial cross - section. Its upper end surface is connected to the end cover to form a sealed cavity structure. There is at least one partition board, which is embedded in the groove body and divides the groove body into a control cavity, a control chamber, and a power chamber from top to bottom. The partition board is slidably connected to the inner side surface of the groove body through a sliding groove. The driving power supply is embedded in the power chamber and is electrically connected to the driving circuit and the power connection port respectively. There is at least one speaker, which is embedded in the control cavity, and several through - holes are provided on the side wall of the groove body corresponding to the control cavity. The speaker is electrically connected to the driving circuit.

[0008] Furthermore, a positioning tray is arranged in the installation groove, the upper end surface of the positioning tray is perpendicular to the axis of the installation groove, the side surface of the positioning tray is slidably connected to the connecting slide rail through a slider, an insulating pad and a protective cover are arranged on the upper end surface of the positioning tray, the upper end surface of the positioning tray is abutted against the lower end surface of the capacitive infrasonic wave sensor through the insulating pad, the protective cover is a columnar structure coaxially distributed with the positioning tray, coated on the outer surface of the capacitive infrasonic wave sensor, and slidably connected to the outer surface of the capacitive infrasonic wave sensor, and the lower end surface of the protective cover is connected to the outer side surface of the positioning tray, and the height is 10%-90% of the height of the capacitive infrasonic wave sensor.

[0009] Furthermore, a load-bearing spring is provided on the lower end surface of the slider, and the load-bearing spring is vertically distributed with the lower end surface of the slider and embedded in the connecting slide rail. The load-bearing spring is coaxially distributed with the connecting slide rail, and its lower end surface is connected to the lower end surface of the connecting slide rail. At least one elastic locating pin is also provided on the side surface of the slider, and is connected to the side wall of the connecting slide rail through the elastic locating pin.

[0010] Furthermore, the protective sleeve is evenly distributed with a number of through holes perpendicular to the axis of the protective sleeve. The protective sleeve comprises a hard protective layer and an elastic lining layer from the outside to the inside. The hard protective layer is coated on the front end surface of the elastic lining layer, and its thickness is 0.8-1.5 times the thickness of the elastic lining layer.

[0011] Furthermore, the load-bearing shell and the connecting buckle are hinged via a ratchet mechanism, and at least one positioning strap is provided on the connecting buckle. An elastic wire take-up device is provided on the outer surface of the load-bearing shell and is connected to the connecting wire via the elastic wire take-up device.

[0012] Furthermore, the connecting wires include at least one audio line and at least one power line; the earphones are any one of a wire-controlled earphone and a Bluetooth earphone; the control interface includes any one of a display, a button, a signal indicator light, and a multi-stage switch, or a combination of several of them.

[0013] Furthermore, the driving circuit is a circuit system based on any one of DSP, FPGA, MCU and PID chip, and the driving circuit is further provided with a MOS driving circuit, a wireless data communication module, a serial communication module, a charge and discharge control circuit, and a crystal oscillator circuit, wherein the MOS driving circuit is electrically connected to the wireless data communication module, the serial communication module, the charge and discharge control circuit, and the crystal oscillator circuit respectively, the wireless data communication module is connected to the wireless communication antenna, the serial communication module is electrically connected to each headphone interface, the serial communication port and the control interface, and the charge and discharge control circuit is electrically connected to the power connection port and the driving power supply respectively.

[0014] A method for using an infrasound wave receiving alarm device comprises the following steps:

[0015] S1, equipment assembly, firstly, the receiving terminal is charged through the power connection port, and after the charging operation is completed, the receiving terminal is connected to the user's belt through the connection buckle, and then the infrasound warning parameters are set through the control interface, and then at least one earphone is inserted into the ear canal, and the earphone is electrically connected to the receiving terminal through the connecting wire and the wireless communication antenna, and the equipment assembly is completed, and finally the assembled device is connected to the external remote early warning protection platform through the wireless communication antenna.

[0016] S2, early warning operation, when the staff is working, the receiving terminal receives the infrasound in the surrounding environment of the working range through the capacitive infrasound sensor, and amplifies the received infrasound from the analog electrical signal on the one hand, and plays it to the staff through the earphone for the staff to listen to the early warning; on the other hand, it converts it into a digital signal, and compares the received infrasound signal with the early warning parameter set in step S1 through the driving circuit, and after the current received infrasound signal value falls within the early warning parameter range set in step S1, the driving circuit sends the early warning signal to the earphone, and plays the early warning to the staff through the earphone;

[0017] S3, remote communication, during the early warning operation in step S2, the analog electrical signal after being put in, the converted digital signal and the early warning parameter are compared and calculated, and the result is sent by the driving circuit to the remote early warning protection platform through the wireless communication antenna. The remote early warning protection platform sets the corresponding emergency rescue plan according to the received data, and returns the rescue plan to the driving circuit of the receiving terminal. The driving circuit then plays the rescue plan to the staff through headphones to guide the rescue personnel to escape and rescue.

[0018] On the one hand, the system of the present invention has a simple structure, is flexible and convenient to carry and use, has good versatility, a high degree of integration, and strong environmental adaptability; on the other hand, during operation, the communication signal has the characteristics of low frequency, easy penetration, low attenuation, and not easy to be absorbed, thereby effectively overcoming the influence of the complex on-site environment on the communication signal, and realizing early detection of safety hazards in the surrounding large environment and safety warnings for staff, thereby greatly improving the safety and reliability of work construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments;

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the bearing shell;

[0022] Figure 3 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0023] In order to facilitate the construction of the technical means, creative features, objectives and effects achieved by the present invention, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 and 2 As shown, an infrasound receiving alarm device includes a receiving terminal 1, an earphone 2, and a connecting wire 3, wherein the earphone 2 is at least one and is electrically connected to the receiving terminal 1 through the connecting wire 3, and the receiving terminal 1 includes a carrying shell 11, a connecting slide rail 12, a connecting buckle 13, a driving power supply 14, a wireless communication antenna 15, a capacitive infrasound sensor 16, a control interface 17, a power connection port 18, an earphone interface 19, a serial communication port 101 and a driving circuit 102, and the carrying shell 11 is a closed cavity structure, and a lower end surface thereof is provided with a A power connection port 18, at least one headphone jack 19 and a control interface 17 are arranged on the upper end surface, the power connection port 18, the headphone jack 19 and the control interface 17 are all electrically connected to the drive circuit 102, at least one connecting buckle 13 is arranged on the rear end surface of the carrying shell 11, and at least two mounting grooves 103 are arranged on the outer surface of the carrying shell 11 and are evenly distributed around the axis of the carrying shell 11, the axis of the mounting groove 103 is parallel to the axis of the carrying shell 11, and at least two connecting slide rails 12 are arranged in the mounting groove 103 and are evenly distributed around the axis of the mounting groove 103. The axis of the rail 12 is parallel to the axis of the mounting groove 103, the number of the capacitive infrasound wave sensors 16 is consistent with the number of the mounting grooves 103, each mounting groove 103 is slidably connected to a capacitive infrasound wave sensor 16 through the connecting slide rail 12, the axis of the capacitive infrasound wave sensor 16 is parallel to the axis of the bearing shell 11, 1 / 2-3 / 4 of the effective volume of the capacitive infrasound wave sensor 16 is embedded in the mounting groove 103, and the length of the capacitive infrasound wave sensor 16 is 1 / 4-3 / 4 of the height of the bearing shell 11, and the capacitive infrasound wave sensor 16 is 1 / 4-3 / 4 of the height of the bearing shell 11. A serial communication port 101 is provided at the bottom of the installation slot 103 corresponding to the sensor 16. The capacitive infrasound sensor 16 is electrically connected to the driving circuit 102 through the serial communication port 101. The wireless communication antenna 15 is hinged to the outer surface of the carrying shell 11 through a ratchet mechanism 104, and the axis of the wireless communication antenna 15 is at an angle of 0°-90° to the axis of the carrying shell 11. The driving power supply 102 and the driving circuit 102 are both located in the carrying shell 11, and the driving circuit 102 is also electrically connected to the driving power supply 102 and the wireless communication antenna 15.

[0025] In this embodiment, the carrier housing 11 includes a trough body 110, an end cover 111, a partition plate 112, and a speaker 113. The trough body 110 has a trough-shaped structure with a “凵”-shaped axial cross-section. Its upper end face is connected to the end cover 111 to form a sealed cavity structure. There is at least one partition plate 112, which is embedded in the trough body 110 and divides the trough body 110 into a control cavity 1101, a control chamber 1102, and a power supply chamber 1103 from top to bottom. The partition plate 112 is slidably connected to the inner side surface of the trough body 110 through a sliding groove 114. The driving power supply 104 is embedded in the power supply chamber 1103 and is electrically connected to the driving circuit 102 and the power supply connection port 18 respectively. There is at least one speaker 113, which is embedded in the control cavity 1101, and several through holes 114 are provided on the side wall of the trough body 110 corresponding to the control cavity 1101. The speaker 113 is electrically connected to the driving circuit 102.

[0026] In this embodiment, a positioning tray 1031 is provided in the installation groove 103. The upper end face of the positioning tray 1031 is vertically distributed with respect to the axis of the installation groove 103. The side surface of the positioning tray 1031 is slidably connected to the connecting slide rail 12 through a slider 1032. An insulating cushion block 1033 and a protective sleeve 1034 are provided on the upper end face of the positioning tray 1031. The upper end face of the positioning tray 1031 abuts against the lower end face of the capacitive infrasonic wave sensor 16 through the insulating cushion block 1033. The protective sleeve 1034 is a columnar structure coaxially distributed with the positioning tray 1031, covers the outer surface of the capacitive infrasonic wave sensor 16, and is slidably connected to the outer surface of the capacitive infrasonic wave sensor 16. Moreover, the lower end face of the protective sleeve 1034 is connected to the outer side surface of the positioning tray 1031, and its height is 10% - 90% of the height of the capacitive infrasonic wave sensor 16.

[0027] Further optimized, a bearing spring 1035 is provided on the lower end face of the slider 1032. The bearing spring 1035 is vertically distributed with respect to the lower end face of the slider 1032 and is embedded in the connecting slide rail 12. The bearing spring 1035 is coaxially distributed with the connecting slide rail 12, and its lower end face is connected to the lower end face of the connecting slide rail 12. At least one elastic positioning pin 1036 is further provided on the side surface of the slider 1032, and the slider 1032 is connected to the side wall of the connecting slide rail 12 through the elastic positioning pin 1036.

[0028] Further optimized, several through holes 114 perpendicular to the axis of the protective sleeve 1034 are evenly distributed on the protective sleeve 1034. The protective sleeve 1034 sequentially includes a hard protective layer 10341 and an elastic inner lining layer 10342 from outside to inside. The hard protective layer 0341 covers the front end face of the elastic inner lining 10342 layer, and its thickness is 0.8 - 1.5 times the thickness of the elastic inner lining layer 10342.

[0029] In this embodiment, the supporting shell 11 and the connecting buckle 13 are hinged via a ratchet mechanism 104, and at least one positioning strap 105 is provided on the connecting buckle 13. An elastic wire take-up device 106 is provided on the outer surface of the supporting shell 11 and is connected to the connecting wire 3 via the elastic wire take-up device 106.

[0030] Further optimized, the connecting wire 3 includes at least one audio line and at least one power line; the earphone 2 is any one of a wire-controlled earphone and a Bluetooth earphone; the control interface 17 includes any one or a combination of a display, a button, a signal indicator light, and a multi-stage switch.

[0031] In this embodiment, the driving circuit 102 is a circuit system based on any one of DSP, FPGA, MCU and PID chip, and the driving circuit is further provided with a MOS driving circuit, a wireless data communication module, a serial communication module, a charge and discharge control circuit, and a crystal oscillator circuit, wherein the MOS driving circuit is electrically connected to the wireless data communication module, the serial communication module, the charge and discharge control circuit, and the crystal oscillator circuit respectively, the wireless data communication module is connected to the wireless communication antenna, the serial communication module is electrically connected to each headphone interface, the serial communication port and the control interface, and the charge and discharge control circuit is electrically connected to the power connection port and the driving power supply respectively.

[0032] like Figure 3 As shown, a method for using an infrasound wave receiving alarm device comprises the following steps:

[0033] S1, equipment assembly, firstly, the receiving terminal is charged through the power connection port, and after the charging operation is completed, the receiving terminal is connected to the user's belt through the connection buckle, and then the infrasound warning parameters are set through the control interface, and then at least one earphone is inserted into the ear canal, and the earphone is electrically connected to the receiving terminal through the connecting wire and the wireless communication antenna, and the equipment assembly is completed, and finally the assembled device is connected to the external remote early warning protection platform through the wireless communication antenna.

[0034] S2, early warning operation, when the staff is working, the receiving terminal receives the infrasound in the surrounding environment of the working range through the capacitive infrasound sensor, and amplifies the received infrasound from the analog electrical signal on the one hand, and plays it to the staff through the earphone for the staff to listen to the early warning; on the other hand, it converts it into a digital signal, and compares the received infrasound signal with the early warning parameter set in step S1 through the driving circuit, and after the current received infrasound signal value falls within the early warning parameter range set in step S1, the driving circuit sends the early warning signal to the earphone, and plays the early warning to the staff through the earphone;

[0035] S3, remote communication, during the early warning operation in step S2, the analog electrical signal after being put in, the converted digital signal and the early warning parameter are compared and calculated, and the result is sent by the driving circuit to the remote early warning protection platform through the wireless communication antenna. The remote early warning protection platform sets the corresponding emergency rescue plan according to the received data, and returns the rescue plan to the driving circuit of the receiving terminal. The driving circuit then plays the rescue plan to the staff through headphones to guide the rescue personnel to escape and rescue.

[0036] On the one hand, the system of the present invention has a simple structure, is flexible and convenient to carry and use, has good versatility, a high degree of integration, and strong environmental adaptability; on the other hand, during operation, the communication signal has the characteristics of low frequency, easy penetration, low attenuation, and not easy to be absorbed, thereby effectively overcoming the influence of the complex on-site environment on the communication signal, and realizing early detection of safety hazards in the surrounding large environment and safety warnings for staff, thereby greatly improving the safety and reliability of work construction.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An infrasound receiving alarm device, Features: The infrasound receiving alarm device comprises a receiving terminal, headphones, and connecting wires, wherein the headphones are at least one and are electrically connected to the receiving terminal through the connecting wires, the receiving terminal comprises a bearing shell, a connecting slide rail, a connecting buckle, a driving power supply, a wireless communication antenna, a capacitive infrasound sensor, a control interface, a power wiring port, a headphone interface, a serial communication port, and a driving circuit, the bearing shell is a closed cavity structure, a power wiring port is provided on its lower end face, at least one headphone interface and a control interface is provided on its upper end face, the power wiring port, the headphone interface, and the control interface are all electrically connected to the driving circuit, at least one connecting buckle is provided on the rear end face of the bearing shell, and at least two mounting grooves are arranged on the outer surface of the bearing shell, which are evenly distributed around the axis of the bearing shell, the axis of the mounting groove is parallel to the axis of the bearing shell, at least two connecting slide rails are arranged in the mounting groove, which are evenly distributed around the axis of the mounting groove, and the connecting slide The rail axis is parallel to the mounting groove axis, the number of the capacitive infrasound wave sensors is consistent with the number of the mounting grooves, each mounting groove is slidably connected to a capacitive infrasound wave sensor through a connecting slide rail, the capacitive infrasound wave sensor axis is parallel to the bearing shell axis, 1 / 2-3 / 4 of the effective volume of the capacitive infrasound wave sensor is embedded in the mounting groove, and the length of the capacitive infrasound wave sensor is 1 / 4-3 / 4 of the height of the bearing shell, a serial communication port is arranged at the bottom of the mounting groove corresponding to the capacitive infrasound wave sensor, the capacitive infrasound wave sensor is electrically connected to the drive circuit through the serial communication port, the wireless communication antenna is hinged to the outer surface of the bearing shell through a ratchet mechanism, and the axis of the wireless communication antenna is at an angle of 0°-90° to the axis of the bearing shell, the driving power supply and the driving circuit are both located in the bearing shell, and the driving circuit is electrically connected to the driving power supply and the wireless communication antenna; A positioning tray is arranged in the installation groove, the upper end surface of the positioning tray is perpendicular to the axis of the installation groove, the side surface of the positioning tray is slidably connected to the connecting slide rail through a slider, an insulating pad and a protective cover are arranged on the upper end surface of the positioning tray, the upper end surface of the positioning tray is abutted against the lower end surface of the capacitive infrasonic wave sensor through the insulating pad, the protective cover is a columnar structure coaxially distributed with the positioning tray, coated on the outer surface of the capacitive infrasonic wave sensor, and slidably connected to the outer surface of the capacitive infrasonic wave sensor, and the lower end surface of the protective cover is connected to the outer side surface of the positioning tray, and the height is 10%-90% of the height of the capacitive infrasonic wave sensor; The lower end surface of the slider is provided with a load-bearing spring, the load-bearing spring is vertically distributed with the lower end surface of the slider and embedded in the connecting slide rail, the load-bearing spring is coaxially distributed with the connecting slide rail, and its lower end surface is connected with the lower end surface of the connecting slide rail, and at least one elastic positioning pin is further provided on the side surface of the slider, and is connected to the side wall of the connecting slide rail through the elastic positioning pin; A plurality of through holes perpendicular to the axis of the protective sleeve are evenly distributed on the protective sleeve. The protective sleeve sequentially includes a hard protective layer and an elastic inner lining layer from outside to inside. The hard protective layer covers the front end face of the elastic inner lining layer, and its thickness is 0.8 - 1.5 times the thickness of the elastic inner lining layer.

2. A subsonic wave receiving and warning device according to claim 1, wherein: The carrier shell includes a groove body, an end cover, a partition board, and a loudspeaker. The groove body is a groove-shaped structure with a "U"-shaped axial cross-section. Its upper end face is connected to the end cover to form a sealed cavity structure. There is at least one partition board, which is embedded in the groove body and divides the groove body into a control cavity, a control chamber, and a power supply chamber from top to bottom. The partition board is slidably connected to the inner side surface of the groove body through a chute. The driving power supply is embedded in the power supply chamber and is electrically connected to the driving circuit and the power supply connection port respectively. There is at least one loudspeaker, which is embedded in the control cavity, and several through holes are provided on the side wall of the groove body corresponding to the control cavity. The loudspeaker is electrically connected to the driving circuit.

3. A subsonic wave receiving and warning device according to claim 1, wherein: The carrier shell and the connecting buckle are hinged through a ratchet mechanism, and at least one positioning strap is additionally provided on the connecting buckle. An elastic wire winder is additionally provided on the outer surface of the carrier shell and is connected to the connecting wire through the elastic wire winder.

4. A subsonic wave receiving and warning device according to claim 1, wherein: The connecting wire includes at least one audio wire and at least one power wire; the earphone is any one of a wired control earphone and a Bluetooth earphone; the control interface includes any one or several of a display, a button, a signal indicator light, and a multi-section switch in common.

5. A subsonic wave receiving and warning device according to claim 1, wherein: The driving circuit is a circuit system based on any one of a DSP, an FPGA, an MCU, and a PID chip. The driving circuit is additionally provided with a MOS driving circuit, a wireless data communication module, a serial communication module, a charge and discharge control circuit, and a crystal oscillator circuit. The MOS driving circuit is electrically connected to the wireless data communication module, the serial communication module, the charge and discharge control circuit, and the crystal oscillator circuit respectively. The wireless data communication module is connected to a wireless communication antenna. The serial communication module is electrically connected to each earphone interface, the serial communication port, and the control interface. The charge and discharge control circuit is electrically connected to the power supply connection port and the driving power supply respectively.

6. A method for using a subsonic wave receiving and warning device according to claim 1, wherein, The method for using the subsonic wave receiving and warning device includes the following steps: S1, equipment assembly. First, charge the receiving terminal through the power supply connection port. After completing the charging operation, connect the receiving terminal to the user's belt through the connecting buckle. Then, set the subsonic wave warning parameters through the control interface. Then, insert at least one earphone into the ear canal, and electrically connect the earphone to the receiving terminal through the connecting wire and the wireless communication antenna. Then, the equipment assembly is completed. Finally, establish a data connection between the assembled equipment and an external remote warning and protection platform through the wireless communication antenna. S2, early warning operation, when the staff is working, the receiving terminal receives the infrasound in the surrounding environment of the working range through the capacitive infrasound sensor, and amplifies the received infrasound from the analog electrical signal on the one hand, and plays it to the staff through the earphone for the staff to listen to the early warning; on the other hand, it converts it into a digital signal, and compares the received infrasound signal with the early warning parameter set in step S1 through the driving circuit, and after the current received infrasound signal value falls within the early warning parameter range set in step S1, the driving circuit sends the early warning signal to the earphone, and plays the early warning to the staff through the earphone; S3, remote communication, during the early warning operation in step S2, the analog electrical signal after being put in, the converted digital signal and the early warning parameter are compared and calculated, and the result is sent by the driving circuit to the remote early warning protection platform through the wireless communication antenna. The remote early warning protection platform sets the corresponding emergency rescue plan according to the received data, and returns the rescue plan to the driving circuit of the receiving terminal. The driving circuit then plays the rescue plan to the staff through headphones to guide the rescue personnel to escape and rescue.

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