Intrinsic safety type wireless communication device and communication method for mine

Abstract

The application discloses a kind of intrinsically safe wireless communication device and communication method for mine, including wireless dispatching switchboard, the wireless dispatching switchboard is electrically connected with fiber optic transceiver, and fiber optic transceiver carries out data transmission with underground intrinsically safe switch in the body of mine through optical fiber, while underground intrinsically safe switch carries out signal transmission to intrinsically safe base station body through base station controller.The intrinsically safe wireless communication device and communication method for mine, when the body of mine collapses inside, the fixed frame is inclined or collapses at this time, infrared receiver cannot receive infrared signal, infrared receiver passes this signal to controller, controller alarms through sound-light alarm, reminds ground inspection staff to carry out emergency alarm processing, reduces the rescue time to people in distress, contacts rescue personnel to carry out rescue work in the fastest speed;Increase the survival rate of people in distress.

Description

Technical Field

[0001] This invention relates to the field of mine communication, specifically to an intrinsically safe wireless communication device and method for use in mines. Background Technology

[0002] Mine communication devices are specifically designed for communication within mines, playing a crucial role in ensuring safe and efficient mine operations. Below are some common mine communication devices:

[0003] Walkie-talkies: Walkie-talkies are commonly used communication devices in mines. They enable real-time voice communication between underground personnel and surface personnel or other underground workers. These devices typically have explosion-proof, waterproof, and dustproof features to meet the special requirements of the mine environment.

[0004] Personnel positioning system: By using radio frequency identification (RFID) or other positioning technologies, a personnel positioning system can track the location and movement trajectory of personnel underground; this is very helpful for monitoring personnel activities, ensuring personnel safety, and conducting rescue operations in emergency situations.

[0005] Communication base stations: To ensure the coverage and signal quality of wireless communication, communication base stations are usually set up in mines; these base stations can enhance signal strength and provide a more stable communication connection.

[0006] Underground telephone systems: Traditional wired telephone systems are also used in mines, providing reliable voice communication, especially in critical areas or near equipment.

[0007] When a mine collapses and there are no signs on the surface, the location of the collapse cannot be determined immediately, which greatly increases the rescue time for the victims and increases the casualty rate.

[0008] When a mine collapses and its electronic components malfunction, trapped miners cannot immediately generate loud noise to attract the attention of rescuers, thus increasing rescue time and further increasing the casualty rate. Summary of the Invention

[0009] To fill a market gap, this invention provides an intrinsically safe wireless communication device and communication method for use in mines.

[0010] The purpose of this invention is to provide an intrinsically safe wireless communication device and method for use in mines, in order to solve the problem mentioned in the background art that when a collapse occurs inside a mine and the electronic devices inside completely fail, the trapped personnel inside the mine cannot immediately generate a loud noise to attract the attention of search and rescue personnel, thereby increasing rescue time and further increasing the casualty rate.

[0011] To solve the above problems, the present invention adopts the following technical solution.

[0012] An intrinsically safe wireless communication device for mines includes a wireless dispatch switch, which is electrically connected to an optical fiber transceiver. The optical fiber transceiver transmits data to an intrinsically safe underground switch inside the mine via optical fiber. Simultaneously, the intrinsically safe underground switch transmits signals to the intrinsically safe base station through a base station controller. The data network generated by the intrinsically safe base station is used by employees' mobile phones inside the mine.

[0013] The mine shaft includes a communication alarm zone 1, with a communication alarm zone 2 on one side, a communication alarm zone 3 on one side, a communication alarm zone 4 on one side, and a communication alarm zone 5 on one side. Mine tunnels are excavated in the inner walls of communication alarm zones 1, 2, 3, 4, and 5, and fixed frames are bolted into the interior of these tunnels. Two intrinsically safe wireless communication base stations and their installation components are installed on these fixed frames. Beams and columns are suspended and fixed on the top wall of the mine shaft, and four sets of separate antennas are evenly installed on these beams and columns, with the ends of the separate antennas fixedly connected to metal bases.

[0014] Ground communication alarm devices are installed inside communication alarm zones 1, 2, 3, 4 and 5. The ground communication alarm devices include infrared receivers, and infrared transmitters are installed above the infrared receivers. The infrared transmitters are screwed and fixed to the mounting base, and a controller is installed on the mounting base. The controller is electrically connected to the sound and light alarm through wires.

[0015] The intrinsically safe wireless communication base station and its installation components include an intrinsically safe base station body, and the back of the intrinsically safe base station body is screwed to the positioning seat. At the same time, the positioning seat is installed on the crossbeam at the top of the fixing frame, and the end surface of the crossbeam is fixed to the receiver mounting cylinder. An infrared receiver is embedded and fixed inside the receiver mounting cylinder.

[0016] Furthermore, the metal base is rectangular in shape, and wire holes are opened inside the metal base. At the same time, a fixing bracket is screwed to the back of the metal base, and the split antenna at the bottom of the metal base is electrically connected to the intrinsically safe base station body through a wire harness.

[0017] Furthermore, the mounting bracket is a "C"-shaped structure made of plastic, and the mounting bracket is interference-fitted with the mounting beam and column. At the same time, the mounting bracket is snapped onto the outside of the mounting beam and column; three sets of U-shaped tubes are evenly installed on the mounting beam and column.

[0018] Furthermore, an installation groove is opened on the ground at the top of the mine body, and an installation plate is screwed into the inside of the installation groove. At the same time, the surface of the installation plate is screwed into the sound and light alarm, and a through hole is opened at the bottom of the installation groove.

[0019] Furthermore, the perforation is adapted to the size of the casing, and the casing is inserted and fixed inside the perforation. At the same time, a wire is installed inside the casing. A positioning hole adapted to the size of the glass plate is opened at the top of the mounting groove, and the glass plate is screwed and fixed inside this positioning hole. The glass plate is a circular structure made of tempered glass. The casing extends downward and is installed inside the mine body.

[0020] Furthermore, the crossbeam is cylindrical, and positioning slots are provided inside both ends of the crossbeam. The positioning slots are adapted to the size of the positioning seats, and the two intrinsically safe base station bodies are respectively inserted into the two positioning slots through the positioning seats on their backs. The cross-sections of the positioning slots and the positioning seats are both dovetail-shaped.

[0021] Furthermore, a back opening is provided on the back of the crossbeam, and the back opening is connected to the positioning groove through a strip opening. A stud is fixedly installed on the back of the positioning seat, and the stud passes through the strip opening and the back opening respectively and is screwed to the locking nut for fixation.

[0022] Furthermore, the mounting base is an "L"-shaped structure made of metal, and the infrared transmitter on the mounting base and the infrared receiver at its bottom are positioned opposite each other. The infrared light emitted by the infrared transmitter is received by the infrared receiver, and the infrared receiver is electrically connected to the controller.

[0023] Furthermore, beams and columns are installed on the top walls of the five communication alarm zones (Zone 1, Zone 2, Zone 3, Zone 4, and Zone 5), and employee mobile phones within the five communication alarm zones receive network signals through four separate antennas. The length of each of the five communication alarm zones is 200m, and the spacing between the separate antennas within a single communication alarm zone is 50m.

[0024] An intrinsically safe wireless communication method for use in mines includes the following steps:

[0025] S1: Mine zoning. Taking a small to medium-sized mine as an example, the total length is 1000m. The lengths of communication alarm zones 1, 2, 3, 4 and 5 are all 200mm. The spacing between the split antennas within a single communication alarm zone is 50m. This achieves full coverage of network signals within the mine.

[0026] S2: Install intrinsically safe base stations. The five sets of intrinsically safe base station bodies inside the communication alarm area, plus two sets of intrinsically safe base station bodies, make a total of four sets of split antennas. Distribute the split antennas evenly on the upper side inside the communication alarm area to ensure the uniformity of network signals inside the communication alarm area.

[0027] S3: Electronic communication alarm. When a collapse occurs inside the mine shaft, the fixing frame tilts or collapses, and the infrared receiver cannot receive the infrared signal. The infrared receiver transmits this signal to the controller, which then sounds an alarm through the sound and light alarm to remind the ground inspection staff to take emergency alarm measures, reduce the rescue time for the trapped personnel, and contact the rescue personnel as quickly as possible to carry out rescue work.

[0028] S4: Physical communication alarm. When a collapsed installation beam falls to the ground, the trapped person removes the split antenna and uses it as a handle and the metal base as a hammer to quickly and violently strike the U-shaped tube on the installation beam. This will alert the trapped person to their location, allowing rescuers to arrive at the location as soon as possible and improve the survival rate of the trapped person.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. When a collapse occurs inside the mine shaft, the fixing frame tilts or collapses, and the infrared receiver cannot receive the infrared signal. The infrared receiver then transmits this signal to the controller, which triggers an alarm via an audible and visual alarm to alert ground inspection personnel to take emergency measures. This reduces the rescue time for those in distress and allows for the fastest possible contact with rescue personnel to carry out rescue work, thereby increasing the survival rate of those in distress.

[0031] 2. This invention addresses the issue of when a mine collapses and electronic equipment becomes unusable. When the collapsed installation beams fall to the ground, trapped personnel can remove a split-type antenna, use the antenna as a handle and the metal base as a hammer, and rapidly and forcefully strike the U-shaped tube on the installation beams to signal their location. Rescue personnel can then arrive at the location immediately to conduct rescue operations, thus improving the survival rate of the trapped personnel.

[0032] 3. This invention uses a metal base and a split antenna to form a "hammer". The hammer strikes a U-shaped tube on the beam or column. The U-shaped tube is made of metal and generates a loud noise, which helps the staff locate the position of the stranded person and improves the survival rate of the stranded person.

[0033] 4. In this invention, when a mine collapses and there is no indication on the ground, the glass plate in the corresponding communication alarm area is opened and the mounting plate is removed; through the protective casing, oxygen can be released into the mine body to prevent oxygen deficiency caused by the internal collapse of the mine body, thus avoiding the situation where trapped personnel die from oxygen deficiency.

[0034] 5. The lengths of communication alarm zones 1, 2, 3, 4, and 5 are all 200mm, and the spacing between the split antennas within a single communication alarm zone is 50m; this allows for comprehensive network supply and collapse communication alarms for the mine body, further improving the safety of workers inside the mine. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of signal transmission according to the present invention;

[0036] Figure 2 This is a schematic diagram of the interior of the mine body of the present invention;

[0037] Figure 3 This is a schematic diagram of the alarm area of ​​the present invention;

[0038] Figure 4 This is a flowchart illustrating the working logic of the communication alarm device of the present invention.

[0039] Figure 5 This is a schematic diagram of the split antenna and its installation structure according to the present invention;

[0040] Figure 6 For the present invention Figure 2 Enlarged structural diagram at point A in the diagram;

[0041] Figure 7 This is a schematic diagram of the audible and visual alarm device and its installation structure according to the present invention;

[0042] Figure 8 This is a schematic diagram of the intrinsically safe base station body of the present invention;

[0043] Figure 9 for Figure 8 Side view;

[0044] Figure 10 This is an exploded view of the intrinsically safe base station body of the present invention.

[0045] In the diagram: 1. Wireless dispatch switch; 2. Fiber optic transceiver; 3. Intrinsically safe underground switch; 4. Base station controller; 5. Employee mobile phone; 6. Intrinsically safe wireless communication base station and its installation components; 61. Intrinsically safe base station body; 62. Positioning slot; 63. Strip opening; 64. Positioning seat; 65. Stud; 66. Back opening; 7. Fixing frame; 71. Crossbeam; 8. Mine body; 80. Mine tunnel; 81. Communication alarm zone 1; 82. Communication alarm zone 2; 83. Communication alarm zone 3 ; 84. Communication alarm zone four; 85. Communication alarm zone five; 9. Ground communication alarm device; 91. Mounting base; 92. Controller; 93. Infrared transmitter; 94. Infrared receiver; 95. Receiver mounting cylinder; 96. Glass plate; 97. Mounting slot; 98. Audible and visual alarm; 99. Mounting plate; 100. Perforation; 101. Protective casing; 102. Wire; 10. U-shaped tube; 11. Mounting beam; 12. Split antenna; 121. Metal base; 122. Card slot. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figure 1-10 The present invention provides a technical solution: an intrinsically safe wireless communication device and communication method for use in mines, including a wireless dispatch switch 1, which is electrically connected to an optical fiber transceiver 2. The optical fiber transceiver 2 transmits data to an intrinsically safe underground switch 3 inside the mine body 8 via optical fiber. At the same time, the intrinsically safe underground switch 3 transmits signals to an intrinsically safe base station body 61 through a base station controller 4. The data network generated by the intrinsically safe base station body 61 is used by employee mobile phones 5 inside the mine body 8.

[0048] The mine body 8 includes a communication alarm zone 1 81, with a communication alarm zone 2 82 on one side of the communication alarm zone 1 81, a communication alarm zone 3 83 on one side of the communication alarm zone 2 82, a communication alarm zone 4 84 on one side of the communication alarm zone 3 83, and a communication alarm zone 5 85 on one side of the communication alarm zone 4 84. Mine tunnels 80 are excavated in the inner walls of the communication alarm zones 1 81, 2 82, 3 83, 4 84, and 5 85. A fixing frame 7 is screwed into the interior of the mine tunnel 80, and two intrinsically safe wireless communication base stations and their installation components 6 are installed on the fixing frame 7. A fixed beam 11 is hoisted and fixed on the top wall of the mine body 8, and four sets of split antennas 12 are evenly installed on the beam 11. The ends of the split antennas 12 are fixedly connected to the metal base 121.

[0049] Ground communication alarm devices 9 are installed inside the communication alarm zones 1 (81), 2 (82), 3 (83), 4 (84), and 5 (85). Each ground communication alarm device 9 includes an infrared receiver 94, and an infrared transmitter 93 is installed above the infrared receiver 94. The infrared transmitter 93 is screwed and fixed to the mounting base 91, and a controller 92 is installed on the mounting base 91. The controller 92 is electrically connected to the audible and visual alarm 98 through a wire 102.

[0050] The intrinsically safe wireless communication base station and its installation components 6 include an intrinsically safe base station body 61, and the back of the intrinsically safe base station body 61 is screwed to the positioning seat 64. Meanwhile, the positioning seat 64 is installed on the crossbeam 71 on the top of the fixing frame 7, and the end surface of the crossbeam 71 is fixed to the receiver mounting cylinder 95. An infrared receiver 94 is embedded and fixed inside the receiver mounting cylinder 95.

[0051] Through the above technical solution: when a collapse occurs inside the mine body 8, the fixing frame 7 tilts or collapses, and the infrared receiver 94 cannot receive the infrared signal. The infrared receiver 94 transmits this signal to the controller 92, and the controller 92 sounds an alarm through the audible and visual alarm 98 to remind the ground inspection personnel to take emergency alarm measures, reduce the rescue time for the trapped personnel, and contact rescue personnel as quickly as possible to carry out rescue work; thus improving the survival rate of the trapped personnel.

[0052] Meanwhile, when the mine shaft 8 collapses and electronic equipment is damaged and unusable, the collapsed installation beam 11 falls to the ground. The trapped personnel can remove the split antenna 12, use the split antenna 12 as a handle and the metal base 121 as a hammer, and quickly and violently strike the U-shaped tube 10 on the installation beam 11 to alert the trapped personnel to their location. Rescue personnel can then arrive at the rescue location as soon as possible to carry out rescue work, thereby improving the survival rate of the trapped personnel.

[0053] like Figure 1 and Figure 5 As shown: the metal base 121 is a cuboid, and the metal base 121 has wire holes inside. At the same time, the back of the metal base 121 is screwed to the fixing bracket 122. The split antenna 12 at the bottom of the metal base 121 is electrically connected to the intrinsically safe base station body 61 through a wire harness.

[0054] The above technical solution involves combining the metal base 121 and the split antenna 12 to form a "hammer". The hammer strikes the U-shaped tube 10 on the mounting beam 11. The U-shaped tube 10 is a metal tube, which generates a loud noise, making it easier for staff to locate the position of the stranded person.

[0055] like Figure 1 and Figure 5 As shown: the card holder 122 is a "C" shaped structure made of plastic, and the card holder 122 is interference-fitted with the mounting beam 11. At the same time, the card holder 122 is snapped onto the outside of the mounting beam 11; three sets of U-shaped tubes 10 are evenly installed on the mounting beam 11.

[0056] With the aforementioned technical solution, the U-shaped tube 10 produces greater noise when struck compared to a straight tube. This is because when a straight tube is struck, the sound travels directly along the tube without significant reflection or resonance. In contrast, the curved shape of the U-shaped tube 10 causes sound to reflect and reverberate within the tube, resulting in more sound wave interference and resonance. This leads to a more concentrated sound energy, thus producing a louder noise.

[0057] Each of the five communication alarm zones 85 (zone 81, 82, 83, 84, and 85) within the mine shaft body 8 is equipped with two intrinsically safe base station bodies 61. Taking communication alarm zone 81 as an example:

[0058] The two intrinsically safe base station bodies 61 inside the communication alarm zone 1 81 together form a total of four separate antennas 12. The separate antennas 12 are evenly distributed on the upper side inside the communication alarm zone 1 81, which can ensure the uniformity of network signals inside the communication alarm zone 1 81.

[0059] like Figure 1-7 As shown: An installation groove 97 is opened on the ground at the top of the mine body 8, and an installation piece 99 is screwed into the inside of the installation groove 97. At the same time, the surface of the installation piece 99 is screwed into the sound and light alarm 98, and a through hole 100 is opened at the bottom of the installation groove 97.

[0060] Through the above technical solution: when a collapse occurs inside the mine body 8 and there is no indication on the ground, the glass plate 96 of the corresponding communication alarm area is opened and the mounting plate 99 is removed; through the protective casing 101, oxygen can be released into the mine body 8 to prevent oxygen deficiency caused by the collapse of the mine body 8, thereby preventing the trapped personnel from dying due to lack of oxygen.

[0061] like Figure 6 As shown: the perforation 100 is adapted to the size of the casing 101, and the casing 101 is inserted and fixed inside the perforation 100. At the same time, the wire 102 is installed inside the casing 101. The top of the mounting groove 97 has a positioning hole adapted to the size of the glass plate 96, and the glass plate 96 is screwed and fixed inside this positioning hole. The glass plate 96 is a circular structure made of tempered glass. The casing 101 extends downward and is installed inside the mine body 8.

[0062] Through the above technical solution: the glass plate 96 is a circular structure made of tempered glass; the glass plate 96 covers the audible and visual alarm 98, which can protect the audible and visual alarm 98. At the same time, the audible and visual alarm 98 can be observed through the glass plate 96 to see if it is working. Warning flags can also be inserted near the glass plate 96 on the ground to facilitate quick positioning of the glass plate 96.

[0063] like Figure 8-10 As shown: the crossbeam 71 is cylindrical, and positioning grooves 62 are opened inside both ends of the crossbeam 71. The positioning grooves 62 are adapted to the size of the positioning seats 64, and the two sets of intrinsically safe base station bodies 61 are respectively inserted into the two sets of positioning grooves 62 through the positioning seats 64 on their backs. The cross sections of the positioning grooves 62 and the positioning seats 64 are both dovetail shaped. The back of the crossbeam 71 has a back opening 66, and the back opening 66 is connected to the positioning grooves 62 through the strip opening 63. The back of the positioning seat 64 is fixedly installed with studs 65, and the studs 65 pass through the strip opening 63 and the back opening 66 respectively and are screwed to the locking nuts for fixation.

[0064] With the above technical solution, the intrinsically safe base station body 61 is installed on the crossbeam 71 by holding the intrinsically safe base station body 61 and inserting the positioning seat 64 on the back of the intrinsically safe base station body 61 into the positioning groove 62. At this time, the stud 65 is inserted into the slot 63. After the position of the intrinsically safe base station body 61 is determined, the stud 65 is tightened and fixed by locking the nut, thus completing the quick installation of the intrinsically safe base station body 61 on the crossbeam 71.

[0065] like Figure 1-4As shown: The mounting base 91 is an "L"-shaped structure made of metal. The infrared transmitter 93 on the mounting base 91 and the infrared receiver 94 at its bottom are positioned opposite each other. The infrared light emitted by the infrared transmitter 93 is received by the infrared receiver 94, and the infrared receiver 94 is electrically connected to the controller 92.

[0066] Through the above technical solution: the infrared light emitted by the infrared transmitter 93 is received by the infrared receiver 94. By judging whether the infrared receiver 94 receives the signal emitted by the infrared transmitter 93, it is determined whether there is an abnormal situation inside the mine body 8. The abnormal situation includes, but is not limited to, rock and soil collapse.

[0067] like Figure 1-2 As shown: beams and columns 11 are installed on the top walls of communication alarm zones 1 (81), 2 (82), 3 (83), 4 (84), and 5 (85), and employee mobile phones 5 within the five communication alarm zones receive network signals through four sets of separate antennas 12; the length of each of the five communication alarm zones is 200m, and the spacing between the separate antennas 12 within a single communication alarm zone is 50m.

[0068] The above technical solution, taking a small to medium-sized mine shaft 8 as an example, has a total length of 1000m. The communication alarm zones 1 (81), 2 (82), 3 (83), 4 (84), and 5 (85) are all 200mm long, and the split antennas 12 within each communication alarm zone are spaced 50m apart. This allows for comprehensive network attack and collapse communication alarm functions for the mine shaft 8, further improving the safety of workers inside the mine.

[0069] An intrinsically safe wireless communication method for use in mines, characterized by comprising the following steps:

[0070] S1: Mine zoning. Taking a small to medium-sized mine body 8 as an example, the total length is 1000m. The lengths of communication alarm zones 1 (81), 2 (82), 3 (83), 4 (84), and 5 (85) are all 200mm. The split antennas 12 within a single communication alarm zone are spaced 50m apart, achieving full coverage of network signals within the mine.

[0071] S2: Install intrinsically safe base stations. The two intrinsically safe base station bodies 61 inside the five communication alarm areas together form a total of four separate antennas 12. The separate antennas 12 are evenly distributed on the upper side inside the communication alarm area to ensure the uniformity of network signals inside the communication alarm area.

[0072] S3: Electronic communication alarm. When a collapse occurs inside the mine body 8, the fixed frame 7 tilts or collapses. The infrared receiver 94 cannot receive the infrared signal. The infrared receiver 94 transmits this signal to the controller 92. The controller 92 alarms through the sound and light alarm 98 to remind the ground inspection staff to take emergency alarm measures, reduce the rescue time for the trapped personnel, and contact the rescue personnel to carry out rescue work as quickly as possible.

[0073] S4: Physical communication alarm. The collapsed installation beam 11 falls to the ground. The trapped person takes off the split antenna 12, uses the split antenna 12 as a handle and the metal base 121 as a hammer, and quickly and violently strikes the U-shaped tube 10 on the installation beam 11 to alarm the location of the trapped person. Rescue personnel can arrive at the rescue location as soon as possible to carry out rescue work and improve the survival rate of the trapped person.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intrinsically safe wireless communication device for use in mines, comprising a wireless dispatch switch (1), characterized in that: The wireless dispatch switch (1) is electrically connected to the fiber optic transceiver (2), and the fiber optic transceiver (2) transmits data to the intrinsically safe underground switch (3) inside the mine body (8) through fiber optic cable. At the same time, the intrinsically safe underground switch (3) transmits signals to the intrinsically safe base station body (61) through the base station controller (4), and the data network generated by the intrinsically safe base station body (61) is used by the employee mobile phones (5) inside the mine body (8). The mine body (8) includes a communication alarm zone 1 (81), and one side of the communication alarm zone 1 (81) is the communication alarm zone 2 (82), and one side of the communication alarm zone 2 (82) is the communication alarm zone 3 (83). At the same time, one side of the communication alarm zone 3 (83) is the communication alarm zone 4 (84), and one side of the communication alarm zone 4 (84) is the communication alarm zone 5 (85). The communication alarm zones 1 (81), 2 (82), 3 (83), and 5 (85) are connected. Mine tunnels (80) are excavated on the inner walls of Zone 4 (84) and Zone 5 (85) of the communication alarm. The mine tunnels (80) are screwed into the fixed frame (7), and two sets of intrinsically safe wireless communication base stations and their installation components (6) are installed on the fixed frame (7). The top wall of the mine body (8) is hoisted and fixedly installed with beams and columns (11), and four sets of split antennas (12) are evenly installed on the beams and columns (11). The ends of the split antennas (12) are fixedly connected to the metal base (121). Ground communication alarm devices (9) are installed inside the communication alarm zone 1 (81), communication alarm zone 2 (82), communication alarm zone 3 (83), communication alarm zone 4 (84) and communication alarm zone 5 (85). The ground communication alarm device (9) includes an infrared receiver (94) and an infrared transmitter (93) is installed above the infrared receiver (94). The infrared transmitter (93) is screwed and fixed on the mounting base (91). A controller (92) is installed on the mounting base (91). The controller (92) is electrically connected to the sound and light alarm (98) through the wire (102). The intrinsically safe wireless communication base station and its installation components (6) include an intrinsically safe base station body (61), and the back of the intrinsically safe base station body (61) is screwed to the positioning seat (64). At the same time, the positioning seat (64) is installed on the crossbeam (71) at the top of the fixing frame (7), and the end surface of the crossbeam (71) is fixed to the receiver mounting cylinder (95). The infrared receiver (94) is embedded and fixed inside the receiver mounting cylinder (95). The metal base (121) is a cuboid with wire holes inside. A mounting bracket (122) is screwed to the back of the metal base (121). The mounting bracket (122) is a C-shaped structure made of plastic and is interference-fitted with the mounting beam (11). The mounting bracket (122) is also attached to the outside of the mounting beam (11). Three sets of U-shaped tubes (10) are evenly installed on the mounting beam (11). An installation groove (97) is opened on the ground at the top of the mine body (8), and an installation piece (99) is screwed into the inside of the installation groove (97). At the same time, the surface of the installation piece (99) is screwed into the sound and light alarm (98), and a through hole (100) is opened at the bottom of the installation groove (97). The through hole (100) is adapted to the size of the casing (101), and the casing (101) is inserted and fixed inside the through hole (100). At the same time, a wire (102) is set inside the casing (101), and the casing (101) extends downward and is set inside the mine body (8). The crossbeam (71) is cylindrical, and positioning slots (62) are opened inside both ends of the crossbeam (71). The positioning slots (62) are matched with the size of the positioning seat (64). The two sets of intrinsically safe base station bodies (61) are respectively inserted into the two sets of positioning slots (62) through the positioning seat (64) on their backs. The cross sections of the positioning slots (62) and the positioning seats (64) are both dovetail-shaped. The back of the crossbeam (71) is opened with a back opening (66), and the back opening (66) is connected to the positioning slots (62) through a strip opening (63). The back of the positioning seat (64) is fixedly installed with studs (65), and the studs (65) are screwed through the strip opening (63), the back opening (66) and the locking nut for fixing. The mounting base (91) is an "L"-shaped structure made of metal. The infrared transmitter (93) on the mounting base (91) and the infrared receiver (94) at its bottom are set opposite to each other. The infrared light emitted by the infrared transmitter (93) is received by the infrared receiver (94), and the infrared receiver (94) is electrically connected to the controller (92).

2. The intrinsically safe wireless communication device for mining as described in claim 1, characterized in that: The top walls of the communication alarm zones 1 (81), 2 (82), 3 (83), 4 (84), and 5 (85) are all equipped with beams and columns (11), and the employee mobile phones (5) in each communication alarm zone receive network signals through four separate antennas (12); the length of each of the five communication alarm zones is 200m, and the spacing between the separate antennas (12) in a single communication alarm zone is 50m.

3. A method for intrinsically safe wireless communication in mines, comprising using an intrinsically safe wireless communication device for mines as described in claim 1 or 2, characterized in that: Includes the following steps: S1: Mine zoning, taking a small to medium-sized mine body (8) as an example, the total length is 1000m, and the lengths of communication alarm zone 1 (81), communication alarm zone 2 (82), communication alarm zone 3 (83), communication alarm zone 4 (84) and communication alarm zone 5 (85) are all 200m. The spacing of the split antennas (12) inside a single communication alarm zone is 50m; to achieve full coverage of network signals inside the mine; S2: Install an intrinsically safe base station. The two intrinsically safe base station bodies (61) inside the five communication alarm areas together form a total of four separate antennas (12). The separate antennas (12) are evenly distributed on the upper side inside the communication alarm area to ensure the uniformity of network signals inside the communication alarm area. S3: Electronic communication alarm. When the mine body (8) collapses inside, the fixed frame (7) tilts or collapses. The infrared receiver (94) cannot receive the infrared signal. The infrared receiver (94) transmits this signal to the controller (92). The controller (92) alarms through the sound and light alarm (98) to remind the ground inspection staff to carry out emergency alarm processing, reduce the rescue time for the trapped personnel, and contact the rescue personnel to carry out rescue work as quickly as possible. S4: Physical communication alarm. The collapsed installation beam (11) falls to the ground. The person in distress takes off the split antenna (12), uses the split antenna (12) as a handle and the metal base (121) as a hammer, and quickly and violently strikes the U-shaped tube (10) on the installation beam (11) to alarm the location of the person in distress. Rescue personnel can rush to the rescue location as soon as possible to carry out rescue work and improve the survival rate of the person in distress.

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